1 /* tc-arm.c -- Assemble for the ARM
2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
4 Free Software Foundation, Inc.
5 Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
6 Modified by David Taylor (dtaylor@armltd.co.uk)
7 Cirrus coprocessor mods by Aldy Hernandez (aldyh@redhat.com)
8 Cirrus coprocessor fixes by Petko Manolov (petkan@nucleusys.com)
9 Cirrus coprocessor fixes by Vladimir Ivanov (vladitx@nucleusys.com)
11 This file is part of GAS, the GNU Assembler.
13 GAS is free software; you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; either version 2, or (at your option)
18 GAS is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
23 You should have received a copy of the GNU General Public License
24 along with GAS; see the file COPYING. If not, write to the Free
25 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
31 #include "safe-ctype.h"
33 /* Need TARGET_CPU. */
40 #include "opcode/arm.h"
44 #include "dwarf2dbg.h"
45 #include "dw2gencfi.h"
48 /* XXX Set this to 1 after the next binutils release. */
49 #define WARN_DEPRECATED 0
52 /* Must be at least the size of the largest unwind opcode (currently two). */
53 #define ARM_OPCODE_CHUNK_SIZE 8
55 /* This structure holds the unwinding state. */
60 symbolS * table_entry;
61 symbolS * personality_routine;
62 int personality_index;
63 /* The segment containing the function. */
66 /* Opcodes generated from this function. */
67 unsigned char * opcodes;
70 /* The number of bytes pushed to the stack. */
72 /* We don't add stack adjustment opcodes immediately so that we can merge
73 multiple adjustments. We can also omit the final adjustment
74 when using a frame pointer. */
75 offsetT pending_offset;
76 /* These two fields are set by both unwind_movsp and unwind_setfp. They
77 hold the reg+offset to use when restoring sp from a frame pointer. */
80 /* Nonzero if an unwind_setfp directive has been seen. */
82 /* Nonzero if the last opcode restores sp from fp_reg. */
83 unsigned sp_restored:1;
86 /* Bit N indicates that an R_ARM_NONE relocation has been output for
87 __aeabi_unwind_cpp_prN already if set. This enables dependencies to be
88 emitted only once per section, to save unnecessary bloat. */
89 static unsigned int marked_pr_dependency = 0;
100 /* Types of processor to assemble for. */
102 #if defined __XSCALE__
103 #define CPU_DEFAULT ARM_ARCH_XSCALE
105 #if defined __thumb__
106 #define CPU_DEFAULT ARM_ARCH_V5T
113 # define FPU_DEFAULT FPU_ARCH_FPA
114 # elif defined (TE_NetBSD)
116 # define FPU_DEFAULT FPU_ARCH_VFP /* Soft-float, but VFP order. */
118 /* Legacy a.out format. */
119 # define FPU_DEFAULT FPU_ARCH_FPA /* Soft-float, but FPA order. */
121 # elif defined (TE_VXWORKS)
122 # define FPU_DEFAULT FPU_ARCH_VFP /* Soft-float, VFP order. */
124 /* For backwards compatibility, default to FPA. */
125 # define FPU_DEFAULT FPU_ARCH_FPA
127 #endif /* ifndef FPU_DEFAULT */
129 #define streq(a, b) (strcmp (a, b) == 0)
131 static arm_feature_set cpu_variant;
132 static arm_feature_set arm_arch_used;
133 static arm_feature_set thumb_arch_used;
135 /* Flags stored in private area of BFD structure. */
136 static int uses_apcs_26 = FALSE;
137 static int atpcs = FALSE;
138 static int support_interwork = FALSE;
139 static int uses_apcs_float = FALSE;
140 static int pic_code = FALSE;
142 /* Variables that we set while parsing command-line options. Once all
143 options have been read we re-process these values to set the real
145 static const arm_feature_set *legacy_cpu = NULL;
146 static const arm_feature_set *legacy_fpu = NULL;
148 static const arm_feature_set *mcpu_cpu_opt = NULL;
149 static const arm_feature_set *mcpu_fpu_opt = NULL;
150 static const arm_feature_set *march_cpu_opt = NULL;
151 static const arm_feature_set *march_fpu_opt = NULL;
152 static const arm_feature_set *mfpu_opt = NULL;
154 /* Constants for known architecture features. */
155 static const arm_feature_set fpu_default = FPU_DEFAULT;
156 static const arm_feature_set fpu_arch_vfp_v1 = FPU_ARCH_VFP_V1;
157 static const arm_feature_set fpu_arch_vfp_v2 = FPU_ARCH_VFP_V2;
158 static const arm_feature_set fpu_arch_fpa = FPU_ARCH_FPA;
159 static const arm_feature_set fpu_any_hard = FPU_ANY_HARD;
160 static const arm_feature_set fpu_arch_maverick = FPU_ARCH_MAVERICK;
161 static const arm_feature_set fpu_endian_pure = FPU_ARCH_ENDIAN_PURE;
164 static const arm_feature_set cpu_default = CPU_DEFAULT;
167 static const arm_feature_set arm_ext_v1 = ARM_FEATURE (ARM_EXT_V1, 0);
168 static const arm_feature_set arm_ext_v2 = ARM_FEATURE (ARM_EXT_V1, 0);
169 static const arm_feature_set arm_ext_v2s = ARM_FEATURE (ARM_EXT_V2S, 0);
170 static const arm_feature_set arm_ext_v3 = ARM_FEATURE (ARM_EXT_V3, 0);
171 static const arm_feature_set arm_ext_v3m = ARM_FEATURE (ARM_EXT_V3M, 0);
172 static const arm_feature_set arm_ext_v4 = ARM_FEATURE (ARM_EXT_V4, 0);
173 static const arm_feature_set arm_ext_v4t = ARM_FEATURE (ARM_EXT_V4T, 0);
174 static const arm_feature_set arm_ext_v5 = ARM_FEATURE (ARM_EXT_V5, 0);
175 static const arm_feature_set arm_ext_v4t_5 =
176 ARM_FEATURE (ARM_EXT_V4T | ARM_EXT_V5, 0);
177 static const arm_feature_set arm_ext_v5t = ARM_FEATURE (ARM_EXT_V5T, 0);
178 static const arm_feature_set arm_ext_v5e = ARM_FEATURE (ARM_EXT_V5E, 0);
179 static const arm_feature_set arm_ext_v5exp = ARM_FEATURE (ARM_EXT_V5ExP, 0);
180 static const arm_feature_set arm_ext_v5j = ARM_FEATURE (ARM_EXT_V5J, 0);
181 static const arm_feature_set arm_ext_v6 = ARM_FEATURE (ARM_EXT_V6, 0);
182 static const arm_feature_set arm_ext_v6k = ARM_FEATURE (ARM_EXT_V6K, 0);
183 static const arm_feature_set arm_ext_v6z = ARM_FEATURE (ARM_EXT_V6Z, 0);
184 static const arm_feature_set arm_ext_v6t2 = ARM_FEATURE (ARM_EXT_V6T2, 0);
186 static const arm_feature_set arm_arch_any = ARM_ANY;
187 static const arm_feature_set arm_arch_full = ARM_FEATURE (-1, -1);
188 static const arm_feature_set arm_arch_t2 = ARM_ARCH_THUMB2;
189 static const arm_feature_set arm_arch_none = ARM_ARCH_NONE;
191 static const arm_feature_set arm_cext_iwmmxt =
192 ARM_FEATURE (0, ARM_CEXT_IWMMXT);
193 static const arm_feature_set arm_cext_xscale =
194 ARM_FEATURE (0, ARM_CEXT_XSCALE);
195 static const arm_feature_set arm_cext_maverick =
196 ARM_FEATURE (0, ARM_CEXT_MAVERICK);
197 static const arm_feature_set fpu_fpa_ext_v1 = ARM_FEATURE (0, FPU_FPA_EXT_V1);
198 static const arm_feature_set fpu_fpa_ext_v2 = ARM_FEATURE (0, FPU_FPA_EXT_V2);
199 static const arm_feature_set fpu_vfp_ext_v1xd =
200 ARM_FEATURE (0, FPU_VFP_EXT_V1xD);
201 static const arm_feature_set fpu_vfp_ext_v1 = ARM_FEATURE (0, FPU_VFP_EXT_V1);
202 static const arm_feature_set fpu_vfp_ext_v2 = ARM_FEATURE (0, FPU_VFP_EXT_V2);
204 static int mfloat_abi_opt = -1;
205 /* Record user cpu selection for object attributes. */
206 static arm_feature_set selected_cpu = ARM_ARCH_NONE;
207 /* Must be long enough to hold any of the names in arm_cpus. */
208 static char selected_cpu_name[16];
211 static int meabi_flags = EABI_DEFAULT;
213 static int meabi_flags = EF_ARM_EABI_UNKNOWN;
218 /* Pre-defined "_GLOBAL_OFFSET_TABLE_" */
219 symbolS * GOT_symbol;
222 /* 0: assemble for ARM,
223 1: assemble for Thumb,
224 2: assemble for Thumb even though target CPU does not support thumb
226 static int thumb_mode = 0;
228 /* If unified_syntax is true, we are processing the new unified
229 ARM/Thumb syntax. Important differences from the old ARM mode:
231 - Immediate operands do not require a # prefix.
232 - Conditional affixes always appear at the end of the
233 instruction. (For backward compatibility, those instructions
234 that formerly had them in the middle, continue to accept them
236 - The IT instruction may appear, and if it does is validated
237 against subsequent conditional affixes. It does not generate
240 Important differences from the old Thumb mode:
242 - Immediate operands do not require a # prefix.
243 - Most of the V6T2 instructions are only available in unified mode.
244 - The .N and .W suffixes are recognized and honored (it is an error
245 if they cannot be honored).
246 - All instructions set the flags if and only if they have an 's' affix.
247 - Conditional affixes may be used. They are validated against
248 preceding IT instructions. Unlike ARM mode, you cannot use a
249 conditional affix except in the scope of an IT instruction. */
251 static bfd_boolean unified_syntax = FALSE;
256 unsigned long instruction;
260 /* Set to the opcode if the instruction needs relaxation.
261 Zero if the instruction is not relaxed. */
265 bfd_reloc_code_real_type type;
274 unsigned present : 1; /* Operand present. */
275 unsigned isreg : 1; /* Operand was a register. */
276 unsigned immisreg : 1; /* .imm field is a second register. */
277 unsigned hasreloc : 1; /* Operand has relocation suffix. */
278 unsigned writeback : 1; /* Operand has trailing ! */
279 unsigned preind : 1; /* Preindexed address. */
280 unsigned postind : 1; /* Postindexed address. */
281 unsigned negative : 1; /* Index register was negated. */
282 unsigned shifted : 1; /* Shift applied to operation. */
283 unsigned shift_kind : 3; /* Shift operation (enum shift_kind). */
287 static struct arm_it inst;
289 #define NUM_FLOAT_VALS 8
291 const char * fp_const[] =
293 "0.0", "1.0", "2.0", "3.0", "4.0", "5.0", "0.5", "10.0", 0
296 /* Number of littlenums required to hold an extended precision number. */
297 #define MAX_LITTLENUMS 6
299 LITTLENUM_TYPE fp_values[NUM_FLOAT_VALS][MAX_LITTLENUMS];
309 #define CP_T_X 0x00008000
310 #define CP_T_Y 0x00400000
312 #define CONDS_BIT 0x00100000
313 #define LOAD_BIT 0x00100000
315 #define DOUBLE_LOAD_FLAG 0x00000001
319 const char * template;
323 #define COND_ALWAYS 0xE
327 const char *template;
331 /* The bit that distinguishes CPSR and SPSR. */
332 #define SPSR_BIT (1 << 22)
334 /* The individual PSR flag bits. */
335 #define PSR_c (1 << 16)
336 #define PSR_x (1 << 17)
337 #define PSR_s (1 << 18)
338 #define PSR_f (1 << 19)
343 bfd_reloc_code_real_type reloc;
348 VFP_REG_Sd, VFP_REG_Sm, VFP_REG_Sn
353 VFP_LDSTMIA, VFP_LDSTMDB, VFP_LDSTMIAX, VFP_LDSTMDBX
356 /* ARM register categories. This includes coprocessor numbers and various
357 architecture extensions' registers. */
379 /* Structure for a hash table entry for a register. */
383 unsigned char number;
385 unsigned char builtin;
388 /* Diagnostics used when we don't get a register of the expected type. */
389 const char *const reg_expected_msgs[] =
391 N_("ARM register expected"),
392 N_("bad or missing co-processor number"),
393 N_("co-processor register expected"),
394 N_("FPA register expected"),
395 N_("VFP single precision register expected"),
396 N_("VFP double precision register expected"),
397 N_("VFP system register expected"),
398 N_("Maverick MVF register expected"),
399 N_("Maverick MVD register expected"),
400 N_("Maverick MVFX register expected"),
401 N_("Maverick MVDX register expected"),
402 N_("Maverick MVAX register expected"),
403 N_("Maverick DSPSC register expected"),
404 N_("iWMMXt data register expected"),
405 N_("iWMMXt control register expected"),
406 N_("iWMMXt scalar register expected"),
407 N_("XScale accumulator register expected"),
410 /* Some well known registers that we refer to directly elsewhere. */
415 /* ARM instructions take 4bytes in the object file, Thumb instructions
421 /* Basic string to match. */
422 const char *template;
424 /* Parameters to instruction. */
425 unsigned char operands[8];
427 /* Conditional tag - see opcode_lookup. */
428 unsigned int tag : 4;
430 /* Basic instruction code. */
431 unsigned int avalue : 28;
433 /* Thumb-format instruction code. */
436 /* Which architecture variant provides this instruction. */
437 const arm_feature_set *avariant;
438 const arm_feature_set *tvariant;
440 /* Function to call to encode instruction in ARM format. */
441 void (* aencode) (void);
443 /* Function to call to encode instruction in Thumb format. */
444 void (* tencode) (void);
447 /* Defines for various bits that we will want to toggle. */
448 #define INST_IMMEDIATE 0x02000000
449 #define OFFSET_REG 0x02000000
450 #define HWOFFSET_IMM 0x00400000
451 #define SHIFT_BY_REG 0x00000010
452 #define PRE_INDEX 0x01000000
453 #define INDEX_UP 0x00800000
454 #define WRITE_BACK 0x00200000
455 #define LDM_TYPE_2_OR_3 0x00400000
457 #define LITERAL_MASK 0xf000f000
458 #define OPCODE_MASK 0xfe1fffff
459 #define V4_STR_BIT 0x00000020
461 #define DATA_OP_SHIFT 21
463 #define T2_OPCODE_MASK 0xfe1fffff
464 #define T2_DATA_OP_SHIFT 21
466 /* Codes to distinguish the arithmetic instructions. */
477 #define OPCODE_CMP 10
478 #define OPCODE_CMN 11
479 #define OPCODE_ORR 12
480 #define OPCODE_MOV 13
481 #define OPCODE_BIC 14
482 #define OPCODE_MVN 15
484 #define T2_OPCODE_AND 0
485 #define T2_OPCODE_BIC 1
486 #define T2_OPCODE_ORR 2
487 #define T2_OPCODE_ORN 3
488 #define T2_OPCODE_EOR 4
489 #define T2_OPCODE_ADD 8
490 #define T2_OPCODE_ADC 10
491 #define T2_OPCODE_SBC 11
492 #define T2_OPCODE_SUB 13
493 #define T2_OPCODE_RSB 14
495 #define T_OPCODE_MUL 0x4340
496 #define T_OPCODE_TST 0x4200
497 #define T_OPCODE_CMN 0x42c0
498 #define T_OPCODE_NEG 0x4240
499 #define T_OPCODE_MVN 0x43c0
501 #define T_OPCODE_ADD_R3 0x1800
502 #define T_OPCODE_SUB_R3 0x1a00
503 #define T_OPCODE_ADD_HI 0x4400
504 #define T_OPCODE_ADD_ST 0xb000
505 #define T_OPCODE_SUB_ST 0xb080
506 #define T_OPCODE_ADD_SP 0xa800
507 #define T_OPCODE_ADD_PC 0xa000
508 #define T_OPCODE_ADD_I8 0x3000
509 #define T_OPCODE_SUB_I8 0x3800
510 #define T_OPCODE_ADD_I3 0x1c00
511 #define T_OPCODE_SUB_I3 0x1e00
513 #define T_OPCODE_ASR_R 0x4100
514 #define T_OPCODE_LSL_R 0x4080
515 #define T_OPCODE_LSR_R 0x40c0
516 #define T_OPCODE_ROR_R 0x41c0
517 #define T_OPCODE_ASR_I 0x1000
518 #define T_OPCODE_LSL_I 0x0000
519 #define T_OPCODE_LSR_I 0x0800
521 #define T_OPCODE_MOV_I8 0x2000
522 #define T_OPCODE_CMP_I8 0x2800
523 #define T_OPCODE_CMP_LR 0x4280
524 #define T_OPCODE_MOV_HR 0x4600
525 #define T_OPCODE_CMP_HR 0x4500
527 #define T_OPCODE_LDR_PC 0x4800
528 #define T_OPCODE_LDR_SP 0x9800
529 #define T_OPCODE_STR_SP 0x9000
530 #define T_OPCODE_LDR_IW 0x6800
531 #define T_OPCODE_STR_IW 0x6000
532 #define T_OPCODE_LDR_IH 0x8800
533 #define T_OPCODE_STR_IH 0x8000
534 #define T_OPCODE_LDR_IB 0x7800
535 #define T_OPCODE_STR_IB 0x7000
536 #define T_OPCODE_LDR_RW 0x5800
537 #define T_OPCODE_STR_RW 0x5000
538 #define T_OPCODE_LDR_RH 0x5a00
539 #define T_OPCODE_STR_RH 0x5200
540 #define T_OPCODE_LDR_RB 0x5c00
541 #define T_OPCODE_STR_RB 0x5400
543 #define T_OPCODE_PUSH 0xb400
544 #define T_OPCODE_POP 0xbc00
546 #define T_OPCODE_BRANCH 0xe000
548 #define THUMB_SIZE 2 /* Size of thumb instruction. */
549 #define THUMB_PP_PC_LR 0x0100
550 #define THUMB_LOAD_BIT 0x0800
552 #define BAD_ARGS _("bad arguments to instruction")
553 #define BAD_PC _("r15 not allowed here")
554 #define BAD_COND _("instruction cannot be conditional")
555 #define BAD_OVERLAP _("registers may not be the same")
556 #define BAD_HIREG _("lo register required")
557 #define BAD_THUMB32 _("instruction not supported in Thumb16 mode")
558 #define BAD_ADDR_MODE _("instruction does not accept this addressing mode");
560 static struct hash_control *arm_ops_hsh;
561 static struct hash_control *arm_cond_hsh;
562 static struct hash_control *arm_shift_hsh;
563 static struct hash_control *arm_psr_hsh;
564 static struct hash_control *arm_reg_hsh;
565 static struct hash_control *arm_reloc_hsh;
567 /* Stuff needed to resolve the label ambiguity
577 symbolS * last_label_seen;
578 static int label_is_thumb_function_name = FALSE;
580 /* Literal pool structure. Held on a per-section
581 and per-sub-section basis. */
583 #define MAX_LITERAL_POOL_SIZE 1024
584 typedef struct literal_pool
586 expressionS literals [MAX_LITERAL_POOL_SIZE];
587 unsigned int next_free_entry;
592 struct literal_pool * next;
595 /* Pointer to a linked list of literal pools. */
596 literal_pool * list_of_pools = NULL;
598 /* State variables for IT block handling. */
599 static bfd_boolean current_it_mask = 0;
600 static int current_cc;
605 /* This array holds the chars that always start a comment. If the
606 pre-processor is disabled, these aren't very useful. */
607 const char comment_chars[] = "@";
609 /* This array holds the chars that only start a comment at the beginning of
610 a line. If the line seems to have the form '# 123 filename'
611 .line and .file directives will appear in the pre-processed output. */
612 /* Note that input_file.c hand checks for '#' at the beginning of the
613 first line of the input file. This is because the compiler outputs
614 #NO_APP at the beginning of its output. */
615 /* Also note that comments like this one will always work. */
616 const char line_comment_chars[] = "#";
618 const char line_separator_chars[] = ";";
620 /* Chars that can be used to separate mant
621 from exp in floating point numbers. */
622 const char EXP_CHARS[] = "eE";
624 /* Chars that mean this number is a floating point constant. */
628 const char FLT_CHARS[] = "rRsSfFdDxXeEpP";
630 /* Prefix characters that indicate the start of an immediate
632 #define is_immediate_prefix(C) ((C) == '#' || (C) == '$')
634 /* Separator character handling. */
636 #define skip_whitespace(str) do { if (*(str) == ' ') ++(str); } while (0)
639 skip_past_char (char ** str, char c)
649 #define skip_past_comma(str) skip_past_char (str, ',')
651 /* Arithmetic expressions (possibly involving symbols). */
653 /* Return TRUE if anything in the expression is a bignum. */
656 walk_no_bignums (symbolS * sp)
658 if (symbol_get_value_expression (sp)->X_op == O_big)
661 if (symbol_get_value_expression (sp)->X_add_symbol)
663 return (walk_no_bignums (symbol_get_value_expression (sp)->X_add_symbol)
664 || (symbol_get_value_expression (sp)->X_op_symbol
665 && walk_no_bignums (symbol_get_value_expression (sp)->X_op_symbol)));
671 static int in_my_get_expression = 0;
673 /* Third argument to my_get_expression. */
674 #define GE_NO_PREFIX 0
675 #define GE_IMM_PREFIX 1
676 #define GE_OPT_PREFIX 2
679 my_get_expression (expressionS * ep, char ** str, int prefix_mode)
684 /* In unified syntax, all prefixes are optional. */
686 prefix_mode = GE_OPT_PREFIX;
690 case GE_NO_PREFIX: break;
692 if (!is_immediate_prefix (**str))
694 inst.error = _("immediate expression requires a # prefix");
700 if (is_immediate_prefix (**str))
706 memset (ep, 0, sizeof (expressionS));
708 save_in = input_line_pointer;
709 input_line_pointer = *str;
710 in_my_get_expression = 1;
711 seg = expression (ep);
712 in_my_get_expression = 0;
714 if (ep->X_op == O_illegal)
716 /* We found a bad expression in md_operand(). */
717 *str = input_line_pointer;
718 input_line_pointer = save_in;
719 if (inst.error == NULL)
720 inst.error = _("bad expression");
725 if (seg != absolute_section
726 && seg != text_section
727 && seg != data_section
728 && seg != bss_section
729 && seg != undefined_section)
731 inst.error = _("bad segment");
732 *str = input_line_pointer;
733 input_line_pointer = save_in;
738 /* Get rid of any bignums now, so that we don't generate an error for which
739 we can't establish a line number later on. Big numbers are never valid
740 in instructions, which is where this routine is always called. */
741 if (ep->X_op == O_big
743 && (walk_no_bignums (ep->X_add_symbol)
745 && walk_no_bignums (ep->X_op_symbol)))))
747 inst.error = _("invalid constant");
748 *str = input_line_pointer;
749 input_line_pointer = save_in;
753 *str = input_line_pointer;
754 input_line_pointer = save_in;
758 /* Turn a string in input_line_pointer into a floating point constant
759 of type TYPE, and store the appropriate bytes in *LITP. The number
760 of LITTLENUMS emitted is stored in *SIZEP. An error message is
761 returned, or NULL on OK.
763 Note that fp constants aren't represent in the normal way on the ARM.
764 In big endian mode, things are as expected. However, in little endian
765 mode fp constants are big-endian word-wise, and little-endian byte-wise
766 within the words. For example, (double) 1.1 in big endian mode is
767 the byte sequence 3f f1 99 99 99 99 99 9a, and in little endian mode is
768 the byte sequence 99 99 f1 3f 9a 99 99 99.
770 ??? The format of 12 byte floats is uncertain according to gcc's arm.h. */
773 md_atof (int type, char * litP, int * sizeP)
776 LITTLENUM_TYPE words[MAX_LITTLENUMS];
808 return _("bad call to MD_ATOF()");
811 t = atof_ieee (input_line_pointer, type, words);
813 input_line_pointer = t;
816 if (target_big_endian)
818 for (i = 0; i < prec; i++)
820 md_number_to_chars (litP, (valueT) words[i], 2);
826 if (ARM_CPU_HAS_FEATURE (cpu_variant, fpu_endian_pure))
827 for (i = prec - 1; i >= 0; i--)
829 md_number_to_chars (litP, (valueT) words[i], 2);
833 /* For a 4 byte float the order of elements in `words' is 1 0.
834 For an 8 byte float the order is 1 0 3 2. */
835 for (i = 0; i < prec; i += 2)
837 md_number_to_chars (litP, (valueT) words[i + 1], 2);
838 md_number_to_chars (litP + 2, (valueT) words[i], 2);
846 /* We handle all bad expressions here, so that we can report the faulty
847 instruction in the error message. */
849 md_operand (expressionS * expr)
851 if (in_my_get_expression)
852 expr->X_op = O_illegal;
855 /* Immediate values. */
857 /* Generic immediate-value read function for use in directives.
858 Accepts anything that 'expression' can fold to a constant.
859 *val receives the number. */
862 immediate_for_directive (int *val)
865 exp.X_op = O_illegal;
867 if (is_immediate_prefix (*input_line_pointer))
869 input_line_pointer++;
873 if (exp.X_op != O_constant)
875 as_bad (_("expected #constant"));
876 ignore_rest_of_line ();
879 *val = exp.X_add_number;
884 /* Register parsing. */
886 /* Generic register parser. CCP points to what should be the
887 beginning of a register name. If it is indeed a valid register
888 name, advance CCP over it and return the reg_entry structure;
889 otherwise return NULL. Does not issue diagnostics. */
891 static struct reg_entry *
892 arm_reg_parse_multi (char **ccp)
896 struct reg_entry *reg;
898 #ifdef REGISTER_PREFIX
899 if (*start != REGISTER_PREFIX)
903 #ifdef OPTIONAL_REGISTER_PREFIX
904 if (*start == OPTIONAL_REGISTER_PREFIX)
909 if (!ISALPHA (*p) || !is_name_beginner (*p))
914 while (ISALPHA (*p) || ISDIGIT (*p) || *p == '_');
916 reg = (struct reg_entry *) hash_find_n (arm_reg_hsh, start, p - start);
925 /* As above, but the register must be of type TYPE, and the return
926 value is the register number or FAIL. */
929 arm_reg_parse (char **ccp, enum arm_reg_type type)
932 struct reg_entry *reg = arm_reg_parse_multi (ccp);
934 if (reg && reg->type == type)
937 /* Alternative syntaxes are accepted for a few register classes. */
944 /* Generic coprocessor register names are allowed for these. */
945 if (reg && reg->type == REG_TYPE_CN)
950 /* For backward compatibility, a bare number is valid here. */
952 unsigned long processor = strtoul (start, ccp, 10);
953 if (*ccp != start && processor <= 15)
958 /* WC includes WCG. ??? I'm not sure this is true for all
959 instructions that take WC registers. */
960 if (reg && reg->type == REG_TYPE_MMXWCG)
972 /* Parse an ARM register list. Returns the bitmask, or FAIL. */
974 parse_reg_list (char ** strp)
980 /* We come back here if we get ranges concatenated by '+' or '|'. */
995 if ((reg = arm_reg_parse (&str, REG_TYPE_RN)) == FAIL)
997 inst.error = _(reg_expected_msgs[REG_TYPE_RN]);
1007 inst.error = _("bad range in register list");
1011 for (i = cur_reg + 1; i < reg; i++)
1013 if (range & (1 << i))
1015 (_("Warning: duplicated register (r%d) in register list"),
1023 if (range & (1 << reg))
1024 as_tsktsk (_("Warning: duplicated register (r%d) in register list"),
1026 else if (reg <= cur_reg)
1027 as_tsktsk (_("Warning: register range not in ascending order"));
1032 while (skip_past_comma (&str) != FAIL
1033 || (in_range = 1, *str++ == '-'));
1038 inst.error = _("missing `}'");
1046 if (my_get_expression (&expr, &str, GE_NO_PREFIX))
1049 if (expr.X_op == O_constant)
1051 if (expr.X_add_number
1052 != (expr.X_add_number & 0x0000ffff))
1054 inst.error = _("invalid register mask");
1058 if ((range & expr.X_add_number) != 0)
1060 int regno = range & expr.X_add_number;
1063 regno = (1 << regno) - 1;
1065 (_("Warning: duplicated register (r%d) in register list"),
1069 range |= expr.X_add_number;
1073 if (inst.reloc.type != 0)
1075 inst.error = _("expression too complex");
1079 memcpy (&inst.reloc.exp, &expr, sizeof (expressionS));
1080 inst.reloc.type = BFD_RELOC_ARM_MULTI;
1081 inst.reloc.pc_rel = 0;
1085 if (*str == '|' || *str == '+')
1091 while (another_range);
1097 /* Parse a VFP register list. If the string is invalid return FAIL.
1098 Otherwise return the number of registers, and set PBASE to the first
1099 register. Double precision registers are matched if DP is nonzero. */
1102 parse_vfp_reg_list (char **str, unsigned int *pbase, int dp)
1110 unsigned long mask = 0;
1120 regtype = REG_TYPE_VFD;
1125 regtype = REG_TYPE_VFS;
1129 base_reg = max_regs;
1133 new_base = arm_reg_parse (str, regtype);
1134 if (new_base == FAIL)
1136 inst.error = gettext (reg_expected_msgs[regtype]);
1140 if (new_base < base_reg)
1141 base_reg = new_base;
1143 if (mask & (1 << new_base))
1145 inst.error = _("invalid register list");
1149 if ((mask >> new_base) != 0 && ! warned)
1151 as_tsktsk (_("register list not in ascending order"));
1155 mask |= 1 << new_base;
1158 if (**str == '-') /* We have the start of a range expression */
1164 if ((high_range = arm_reg_parse (str, regtype)) == FAIL)
1166 inst.error = gettext (reg_expected_msgs[regtype]);
1170 if (high_range <= new_base)
1172 inst.error = _("register range not in ascending order");
1176 for (new_base++; new_base <= high_range; new_base++)
1178 if (mask & (1 << new_base))
1180 inst.error = _("invalid register list");
1184 mask |= 1 << new_base;
1189 while (skip_past_comma (str) != FAIL);
1193 /* Sanity check -- should have raised a parse error above. */
1194 if (count == 0 || count > max_regs)
1199 /* Final test -- the registers must be consecutive. */
1201 for (i = 0; i < count; i++)
1203 if ((mask & (1u << i)) == 0)
1205 inst.error = _("non-contiguous register range");
1213 /* Parse an explicit relocation suffix on an expression. This is
1214 either nothing, or a word in parentheses. Note that if !OBJ_ELF,
1215 arm_reloc_hsh contains no entries, so this function can only
1216 succeed if there is no () after the word. Returns -1 on error,
1217 BFD_RELOC_UNUSED if there wasn't any suffix. */
1219 parse_reloc (char **str)
1221 struct reloc_entry *r;
1225 return BFD_RELOC_UNUSED;
1230 while (*q && *q != ')' && *q != ',')
1235 if ((r = hash_find_n (arm_reloc_hsh, p, q - p)) == NULL)
1242 /* Directives: register aliases. */
1245 insert_reg_alias (char *str, int number, int type)
1247 struct reg_entry *new;
1250 if ((new = hash_find (arm_reg_hsh, str)) != 0)
1253 as_warn (_("ignoring attempt to redefine built-in register '%s'"), str);
1255 /* Only warn about a redefinition if it's not defined as the
1257 else if (new->number != number || new->type != type)
1258 as_warn (_("ignoring redefinition of register alias '%s'"), str);
1263 name = xstrdup (str);
1264 new = xmalloc (sizeof (struct reg_entry));
1267 new->number = number;
1269 new->builtin = FALSE;
1271 if (hash_insert (arm_reg_hsh, name, (PTR) new))
1275 /* Look for the .req directive. This is of the form:
1277 new_register_name .req existing_register_name
1279 If we find one, or if it looks sufficiently like one that we want to
1280 handle any error here, return non-zero. Otherwise return zero. */
1283 create_register_alias (char * newname, char *p)
1285 struct reg_entry *old;
1286 char *oldname, *nbuf;
1289 /* The input scrubber ensures that whitespace after the mnemonic is
1290 collapsed to single spaces. */
1292 if (strncmp (oldname, " .req ", 6) != 0)
1296 if (*oldname == '\0')
1299 old = hash_find (arm_reg_hsh, oldname);
1302 as_warn (_("unknown register '%s' -- .req ignored"), oldname);
1306 /* If TC_CASE_SENSITIVE is defined, then newname already points to
1307 the desired alias name, and p points to its end. If not, then
1308 the desired alias name is in the global original_case_string. */
1309 #ifdef TC_CASE_SENSITIVE
1312 newname = original_case_string;
1313 nlen = strlen (newname);
1316 nbuf = alloca (nlen + 1);
1317 memcpy (nbuf, newname, nlen);
1320 /* Create aliases under the new name as stated; an all-lowercase
1321 version of the new name; and an all-uppercase version of the new
1323 insert_reg_alias (nbuf, old->number, old->type);
1325 for (p = nbuf; *p; p++)
1328 if (strncmp (nbuf, newname, nlen))
1329 insert_reg_alias (nbuf, old->number, old->type);
1331 for (p = nbuf; *p; p++)
1334 if (strncmp (nbuf, newname, nlen))
1335 insert_reg_alias (nbuf, old->number, old->type);
1340 /* Should never be called, as .req goes between the alias and the
1341 register name, not at the beginning of the line. */
1343 s_req (int a ATTRIBUTE_UNUSED)
1345 as_bad (_("invalid syntax for .req directive"));
1348 /* The .unreq directive deletes an alias which was previously defined
1349 by .req. For example:
1355 s_unreq (int a ATTRIBUTE_UNUSED)
1360 name = input_line_pointer;
1362 while (*input_line_pointer != 0
1363 && *input_line_pointer != ' '
1364 && *input_line_pointer != '\n')
1365 ++input_line_pointer;
1367 saved_char = *input_line_pointer;
1368 *input_line_pointer = 0;
1371 as_bad (_("invalid syntax for .unreq directive"));
1374 struct reg_entry *reg = hash_find (arm_reg_hsh, name);
1377 as_bad (_("unknown register alias '%s'"), name);
1378 else if (reg->builtin)
1379 as_warn (_("ignoring attempt to undefine built-in register '%s'"),
1383 hash_delete (arm_reg_hsh, name);
1384 free ((char *) reg->name);
1389 *input_line_pointer = saved_char;
1390 demand_empty_rest_of_line ();
1393 /* Directives: Instruction set selection. */
1396 /* This code is to handle mapping symbols as defined in the ARM ELF spec.
1397 (See "Mapping symbols", section 4.5.5, ARM AAELF version 1.0).
1398 Note that previously, $a and $t has type STT_FUNC (BSF_OBJECT flag),
1399 and $d has type STT_OBJECT (BSF_OBJECT flag). Now all three are untyped. */
1401 static enum mstate mapstate = MAP_UNDEFINED;
1404 mapping_state (enum mstate state)
1407 const char * symname;
1410 if (mapstate == state)
1411 /* The mapping symbol has already been emitted.
1412 There is nothing else to do. */
1421 type = BSF_NO_FLAGS;
1425 type = BSF_NO_FLAGS;
1429 type = BSF_NO_FLAGS;
1437 seg_info (now_seg)->tc_segment_info_data.mapstate = state;
1439 symbolP = symbol_new (symname, now_seg, (valueT) frag_now_fix (), frag_now);
1440 symbol_table_insert (symbolP);
1441 symbol_get_bfdsym (symbolP)->flags |= type | BSF_LOCAL;
1446 THUMB_SET_FUNC (symbolP, 0);
1447 ARM_SET_THUMB (symbolP, 0);
1448 ARM_SET_INTERWORK (symbolP, support_interwork);
1452 THUMB_SET_FUNC (symbolP, 1);
1453 ARM_SET_THUMB (symbolP, 1);
1454 ARM_SET_INTERWORK (symbolP, support_interwork);
1463 #define mapping_state(x) /* nothing */
1466 /* Find the real, Thumb encoded start of a Thumb function. */
1469 find_real_start (symbolS * symbolP)
1472 const char * name = S_GET_NAME (symbolP);
1473 symbolS * new_target;
1475 /* This definition must agree with the one in gcc/config/arm/thumb.c. */
1476 #define STUB_NAME ".real_start_of"
1481 /* The compiler may generate BL instructions to local labels because
1482 it needs to perform a branch to a far away location. These labels
1483 do not have a corresponding ".real_start_of" label. We check
1484 both for S_IS_LOCAL and for a leading dot, to give a way to bypass
1485 the ".real_start_of" convention for nonlocal branches. */
1486 if (S_IS_LOCAL (symbolP) || name[0] == '.')
1489 real_start = ACONCAT ((STUB_NAME, name, NULL));
1490 new_target = symbol_find (real_start);
1492 if (new_target == NULL)
1494 as_warn ("Failed to find real start of function: %s\n", name);
1495 new_target = symbolP;
1502 opcode_select (int width)
1509 if (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v4t))
1510 as_bad (_("selected processor does not support THUMB opcodes"));
1513 /* No need to force the alignment, since we will have been
1514 coming from ARM mode, which is word-aligned. */
1515 record_alignment (now_seg, 1);
1517 mapping_state (MAP_THUMB);
1523 if (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v1))
1524 as_bad (_("selected processor does not support ARM opcodes"));
1529 frag_align (2, 0, 0);
1531 record_alignment (now_seg, 1);
1533 mapping_state (MAP_ARM);
1537 as_bad (_("invalid instruction size selected (%d)"), width);
1542 s_arm (int ignore ATTRIBUTE_UNUSED)
1545 demand_empty_rest_of_line ();
1549 s_thumb (int ignore ATTRIBUTE_UNUSED)
1552 demand_empty_rest_of_line ();
1556 s_code (int unused ATTRIBUTE_UNUSED)
1560 temp = get_absolute_expression ();
1565 opcode_select (temp);
1569 as_bad (_("invalid operand to .code directive (%d) (expecting 16 or 32)"), temp);
1574 s_force_thumb (int ignore ATTRIBUTE_UNUSED)
1576 /* If we are not already in thumb mode go into it, EVEN if
1577 the target processor does not support thumb instructions.
1578 This is used by gcc/config/arm/lib1funcs.asm for example
1579 to compile interworking support functions even if the
1580 target processor should not support interworking. */
1584 record_alignment (now_seg, 1);
1587 demand_empty_rest_of_line ();
1591 s_thumb_func (int ignore ATTRIBUTE_UNUSED)
1595 /* The following label is the name/address of the start of a Thumb function.
1596 We need to know this for the interworking support. */
1597 label_is_thumb_function_name = TRUE;
1600 /* Perform a .set directive, but also mark the alias as
1601 being a thumb function. */
1604 s_thumb_set (int equiv)
1606 /* XXX the following is a duplicate of the code for s_set() in read.c
1607 We cannot just call that code as we need to get at the symbol that
1614 /* Especial apologies for the random logic:
1615 This just grew, and could be parsed much more simply!
1617 name = input_line_pointer;
1618 delim = get_symbol_end ();
1619 end_name = input_line_pointer;
1622 if (*input_line_pointer != ',')
1625 as_bad (_("expected comma after name \"%s\""), name);
1627 ignore_rest_of_line ();
1631 input_line_pointer++;
1634 if (name[0] == '.' && name[1] == '\0')
1636 /* XXX - this should not happen to .thumb_set. */
1640 if ((symbolP = symbol_find (name)) == NULL
1641 && (symbolP = md_undefined_symbol (name)) == NULL)
1644 /* When doing symbol listings, play games with dummy fragments living
1645 outside the normal fragment chain to record the file and line info
1647 if (listing & LISTING_SYMBOLS)
1649 extern struct list_info_struct * listing_tail;
1650 fragS * dummy_frag = xmalloc (sizeof (fragS));
1652 memset (dummy_frag, 0, sizeof (fragS));
1653 dummy_frag->fr_type = rs_fill;
1654 dummy_frag->line = listing_tail;
1655 symbolP = symbol_new (name, undefined_section, 0, dummy_frag);
1656 dummy_frag->fr_symbol = symbolP;
1660 symbolP = symbol_new (name, undefined_section, 0, &zero_address_frag);
1663 /* "set" symbols are local unless otherwise specified. */
1664 SF_SET_LOCAL (symbolP);
1665 #endif /* OBJ_COFF */
1666 } /* Make a new symbol. */
1668 symbol_table_insert (symbolP);
1673 && S_IS_DEFINED (symbolP)
1674 && S_GET_SEGMENT (symbolP) != reg_section)
1675 as_bad (_("symbol `%s' already defined"), S_GET_NAME (symbolP));
1677 pseudo_set (symbolP);
1679 demand_empty_rest_of_line ();
1681 /* XXX Now we come to the Thumb specific bit of code. */
1683 THUMB_SET_FUNC (symbolP, 1);
1684 ARM_SET_THUMB (symbolP, 1);
1685 #if defined OBJ_ELF || defined OBJ_COFF
1686 ARM_SET_INTERWORK (symbolP, support_interwork);
1690 /* Directives: Mode selection. */
1692 /* .syntax [unified|divided] - choose the new unified syntax
1693 (same for Arm and Thumb encoding, modulo slight differences in what
1694 can be represented) or the old divergent syntax for each mode. */
1696 s_syntax (int unused ATTRIBUTE_UNUSED)
1700 name = input_line_pointer;
1701 delim = get_symbol_end ();
1703 if (!strcasecmp (name, "unified"))
1704 unified_syntax = TRUE;
1705 else if (!strcasecmp (name, "divided"))
1706 unified_syntax = FALSE;
1709 as_bad (_("unrecognized syntax mode \"%s\""), name);
1712 *input_line_pointer = delim;
1713 demand_empty_rest_of_line ();
1716 /* Directives: sectioning and alignment. */
1718 /* Same as s_align_ptwo but align 0 => align 2. */
1721 s_align (int unused ATTRIBUTE_UNUSED)
1725 long max_alignment = 15;
1727 temp = get_absolute_expression ();
1728 if (temp > max_alignment)
1729 as_bad (_("alignment too large: %d assumed"), temp = max_alignment);
1732 as_bad (_("alignment negative. 0 assumed."));
1736 if (*input_line_pointer == ',')
1738 input_line_pointer++;
1739 temp_fill = get_absolute_expression ();
1747 /* Only make a frag if we HAVE to. */
1748 if (temp && !need_pass_2)
1749 frag_align (temp, (int) temp_fill, 0);
1750 demand_empty_rest_of_line ();
1752 record_alignment (now_seg, temp);
1756 s_bss (int ignore ATTRIBUTE_UNUSED)
1758 /* We don't support putting frags in the BSS segment, we fake it by
1759 marking in_bss, then looking at s_skip for clues. */
1760 subseg_set (bss_section, 0);
1761 demand_empty_rest_of_line ();
1762 mapping_state (MAP_DATA);
1766 s_even (int ignore ATTRIBUTE_UNUSED)
1768 /* Never make frag if expect extra pass. */
1770 frag_align (1, 0, 0);
1772 record_alignment (now_seg, 1);
1774 demand_empty_rest_of_line ();
1777 /* Directives: Literal pools. */
1779 static literal_pool *
1780 find_literal_pool (void)
1782 literal_pool * pool;
1784 for (pool = list_of_pools; pool != NULL; pool = pool->next)
1786 if (pool->section == now_seg
1787 && pool->sub_section == now_subseg)
1794 static literal_pool *
1795 find_or_make_literal_pool (void)
1797 /* Next literal pool ID number. */
1798 static unsigned int latest_pool_num = 1;
1799 literal_pool * pool;
1801 pool = find_literal_pool ();
1805 /* Create a new pool. */
1806 pool = xmalloc (sizeof (* pool));
1810 pool->next_free_entry = 0;
1811 pool->section = now_seg;
1812 pool->sub_section = now_subseg;
1813 pool->next = list_of_pools;
1814 pool->symbol = NULL;
1816 /* Add it to the list. */
1817 list_of_pools = pool;
1820 /* New pools, and emptied pools, will have a NULL symbol. */
1821 if (pool->symbol == NULL)
1823 pool->symbol = symbol_create (FAKE_LABEL_NAME, undefined_section,
1824 (valueT) 0, &zero_address_frag);
1825 pool->id = latest_pool_num ++;
1832 /* Add the literal in the global 'inst'
1833 structure to the relevent literal pool. */
1836 add_to_lit_pool (void)
1838 literal_pool * pool;
1841 pool = find_or_make_literal_pool ();
1843 /* Check if this literal value is already in the pool. */
1844 for (entry = 0; entry < pool->next_free_entry; entry ++)
1846 if ((pool->literals[entry].X_op == inst.reloc.exp.X_op)
1847 && (inst.reloc.exp.X_op == O_constant)
1848 && (pool->literals[entry].X_add_number
1849 == inst.reloc.exp.X_add_number)
1850 && (pool->literals[entry].X_unsigned
1851 == inst.reloc.exp.X_unsigned))
1854 if ((pool->literals[entry].X_op == inst.reloc.exp.X_op)
1855 && (inst.reloc.exp.X_op == O_symbol)
1856 && (pool->literals[entry].X_add_number
1857 == inst.reloc.exp.X_add_number)
1858 && (pool->literals[entry].X_add_symbol
1859 == inst.reloc.exp.X_add_symbol)
1860 && (pool->literals[entry].X_op_symbol
1861 == inst.reloc.exp.X_op_symbol))
1865 /* Do we need to create a new entry? */
1866 if (entry == pool->next_free_entry)
1868 if (entry >= MAX_LITERAL_POOL_SIZE)
1870 inst.error = _("literal pool overflow");
1874 pool->literals[entry] = inst.reloc.exp;
1875 pool->next_free_entry += 1;
1878 inst.reloc.exp.X_op = O_symbol;
1879 inst.reloc.exp.X_add_number = ((int) entry) * 4;
1880 inst.reloc.exp.X_add_symbol = pool->symbol;
1885 /* Can't use symbol_new here, so have to create a symbol and then at
1886 a later date assign it a value. Thats what these functions do. */
1889 symbol_locate (symbolS * symbolP,
1890 const char * name, /* It is copied, the caller can modify. */
1891 segT segment, /* Segment identifier (SEG_<something>). */
1892 valueT valu, /* Symbol value. */
1893 fragS * frag) /* Associated fragment. */
1895 unsigned int name_length;
1896 char * preserved_copy_of_name;
1898 name_length = strlen (name) + 1; /* +1 for \0. */
1899 obstack_grow (¬es, name, name_length);
1900 preserved_copy_of_name = obstack_finish (¬es);
1902 #ifdef tc_canonicalize_symbol_name
1903 preserved_copy_of_name =
1904 tc_canonicalize_symbol_name (preserved_copy_of_name);
1907 S_SET_NAME (symbolP, preserved_copy_of_name);
1909 S_SET_SEGMENT (symbolP, segment);
1910 S_SET_VALUE (symbolP, valu);
1911 symbol_clear_list_pointers (symbolP);
1913 symbol_set_frag (symbolP, frag);
1915 /* Link to end of symbol chain. */
1917 extern int symbol_table_frozen;
1919 if (symbol_table_frozen)
1923 symbol_append (symbolP, symbol_lastP, & symbol_rootP, & symbol_lastP);
1925 obj_symbol_new_hook (symbolP);
1927 #ifdef tc_symbol_new_hook
1928 tc_symbol_new_hook (symbolP);
1932 verify_symbol_chain (symbol_rootP, symbol_lastP);
1933 #endif /* DEBUG_SYMS */
1938 s_ltorg (int ignored ATTRIBUTE_UNUSED)
1941 literal_pool * pool;
1944 pool = find_literal_pool ();
1946 || pool->symbol == NULL
1947 || pool->next_free_entry == 0)
1950 mapping_state (MAP_DATA);
1952 /* Align pool as you have word accesses.
1953 Only make a frag if we have to. */
1955 frag_align (2, 0, 0);
1957 record_alignment (now_seg, 2);
1959 sprintf (sym_name, "$$lit_\002%x", pool->id);
1961 symbol_locate (pool->symbol, sym_name, now_seg,
1962 (valueT) frag_now_fix (), frag_now);
1963 symbol_table_insert (pool->symbol);
1965 ARM_SET_THUMB (pool->symbol, thumb_mode);
1967 #if defined OBJ_COFF || defined OBJ_ELF
1968 ARM_SET_INTERWORK (pool->symbol, support_interwork);
1971 for (entry = 0; entry < pool->next_free_entry; entry ++)
1972 /* First output the expression in the instruction to the pool. */
1973 emit_expr (&(pool->literals[entry]), 4); /* .word */
1975 /* Mark the pool as empty. */
1976 pool->next_free_entry = 0;
1977 pool->symbol = NULL;
1981 /* Forward declarations for functions below, in the MD interface
1983 static void fix_new_arm (fragS *, int, short, expressionS *, int, int);
1984 static valueT create_unwind_entry (int);
1985 static void start_unwind_section (const segT, int);
1986 static void add_unwind_opcode (valueT, int);
1987 static void flush_pending_unwind (void);
1989 /* Directives: Data. */
1992 s_arm_elf_cons (int nbytes)
1996 #ifdef md_flush_pending_output
1997 md_flush_pending_output ();
2000 if (is_it_end_of_statement ())
2002 demand_empty_rest_of_line ();
2006 #ifdef md_cons_align
2007 md_cons_align (nbytes);
2010 mapping_state (MAP_DATA);
2014 char *base = input_line_pointer;
2018 if (exp.X_op != O_symbol)
2019 emit_expr (&exp, (unsigned int) nbytes);
2022 char *before_reloc = input_line_pointer;
2023 reloc = parse_reloc (&input_line_pointer);
2026 as_bad (_("unrecognized relocation suffix"));
2027 ignore_rest_of_line ();
2030 else if (reloc == BFD_RELOC_UNUSED)
2031 emit_expr (&exp, (unsigned int) nbytes);
2034 reloc_howto_type *howto = bfd_reloc_type_lookup (stdoutput, reloc);
2035 int size = bfd_get_reloc_size (howto);
2037 if (reloc == BFD_RELOC_ARM_PLT32)
2039 as_bad (_("(plt) is only valid on branch targets"));
2040 reloc = BFD_RELOC_UNUSED;
2045 as_bad (_("%s relocations do not fit in %d bytes"),
2046 howto->name, nbytes);
2049 /* We've parsed an expression stopping at O_symbol.
2050 But there may be more expression left now that we
2051 have parsed the relocation marker. Parse it again.
2052 XXX Surely there is a cleaner way to do this. */
2053 char *p = input_line_pointer;
2055 char *save_buf = alloca (input_line_pointer - base);
2056 memcpy (save_buf, base, input_line_pointer - base);
2057 memmove (base + (input_line_pointer - before_reloc),
2058 base, before_reloc - base);
2060 input_line_pointer = base + (input_line_pointer-before_reloc);
2062 memcpy (base, save_buf, p - base);
2064 offset = nbytes - size;
2065 p = frag_more ((int) nbytes);
2066 fix_new_exp (frag_now, p - frag_now->fr_literal + offset,
2067 size, &exp, 0, reloc);
2072 while (*input_line_pointer++ == ',');
2074 /* Put terminator back into stream. */
2075 input_line_pointer --;
2076 demand_empty_rest_of_line ();
2080 /* Parse a .rel31 directive. */
2083 s_arm_rel31 (int ignored ATTRIBUTE_UNUSED)
2090 if (*input_line_pointer == '1')
2091 highbit = 0x80000000;
2092 else if (*input_line_pointer != '0')
2093 as_bad (_("expected 0 or 1"));
2095 input_line_pointer++;
2096 if (*input_line_pointer != ',')
2097 as_bad (_("missing comma"));
2098 input_line_pointer++;
2100 #ifdef md_flush_pending_output
2101 md_flush_pending_output ();
2104 #ifdef md_cons_align
2108 mapping_state (MAP_DATA);
2113 md_number_to_chars (p, highbit, 4);
2114 fix_new_arm (frag_now, p - frag_now->fr_literal, 4, &exp, 1,
2115 BFD_RELOC_ARM_PREL31);
2117 demand_empty_rest_of_line ();
2120 /* Directives: AEABI stack-unwind tables. */
2122 /* Parse an unwind_fnstart directive. Simply records the current location. */
2125 s_arm_unwind_fnstart (int ignored ATTRIBUTE_UNUSED)
2127 demand_empty_rest_of_line ();
2128 /* Mark the start of the function. */
2129 unwind.proc_start = expr_build_dot ();
2131 /* Reset the rest of the unwind info. */
2132 unwind.opcode_count = 0;
2133 unwind.table_entry = NULL;
2134 unwind.personality_routine = NULL;
2135 unwind.personality_index = -1;
2136 unwind.frame_size = 0;
2137 unwind.fp_offset = 0;
2140 unwind.sp_restored = 0;
2144 /* Parse a handlerdata directive. Creates the exception handling table entry
2145 for the function. */
2148 s_arm_unwind_handlerdata (int ignored ATTRIBUTE_UNUSED)
2150 demand_empty_rest_of_line ();
2151 if (unwind.table_entry)
2152 as_bad (_("dupicate .handlerdata directive"));
2154 create_unwind_entry (1);
2157 /* Parse an unwind_fnend directive. Generates the index table entry. */
2160 s_arm_unwind_fnend (int ignored ATTRIBUTE_UNUSED)
2166 demand_empty_rest_of_line ();
2168 /* Add eh table entry. */
2169 if (unwind.table_entry == NULL)
2170 val = create_unwind_entry (0);
2174 /* Add index table entry. This is two words. */
2175 start_unwind_section (unwind.saved_seg, 1);
2176 frag_align (2, 0, 0);
2177 record_alignment (now_seg, 2);
2179 ptr = frag_more (8);
2180 where = frag_now_fix () - 8;
2182 /* Self relative offset of the function start. */
2183 fix_new (frag_now, where, 4, unwind.proc_start, 0, 1,
2184 BFD_RELOC_ARM_PREL31);
2186 /* Indicate dependency on EHABI-defined personality routines to the
2187 linker, if it hasn't been done already. */
2188 if (unwind.personality_index >= 0 && unwind.personality_index < 3
2189 && !(marked_pr_dependency & (1 << unwind.personality_index)))
2191 static const char *const name[] = {
2192 "__aeabi_unwind_cpp_pr0",
2193 "__aeabi_unwind_cpp_pr1",
2194 "__aeabi_unwind_cpp_pr2"
2196 symbolS *pr = symbol_find_or_make (name[unwind.personality_index]);
2197 fix_new (frag_now, where, 0, pr, 0, 1, BFD_RELOC_NONE);
2198 marked_pr_dependency |= 1 << unwind.personality_index;
2199 seg_info (now_seg)->tc_segment_info_data.marked_pr_dependency
2200 = marked_pr_dependency;
2204 /* Inline exception table entry. */
2205 md_number_to_chars (ptr + 4, val, 4);
2207 /* Self relative offset of the table entry. */
2208 fix_new (frag_now, where + 4, 4, unwind.table_entry, 0, 1,
2209 BFD_RELOC_ARM_PREL31);
2211 /* Restore the original section. */
2212 subseg_set (unwind.saved_seg, unwind.saved_subseg);
2216 /* Parse an unwind_cantunwind directive. */
2219 s_arm_unwind_cantunwind (int ignored ATTRIBUTE_UNUSED)
2221 demand_empty_rest_of_line ();
2222 if (unwind.personality_routine || unwind.personality_index != -1)
2223 as_bad (_("personality routine specified for cantunwind frame"));
2225 unwind.personality_index = -2;
2229 /* Parse a personalityindex directive. */
2232 s_arm_unwind_personalityindex (int ignored ATTRIBUTE_UNUSED)
2236 if (unwind.personality_routine || unwind.personality_index != -1)
2237 as_bad (_("duplicate .personalityindex directive"));
2241 if (exp.X_op != O_constant
2242 || exp.X_add_number < 0 || exp.X_add_number > 15)
2244 as_bad (_("bad personality routine number"));
2245 ignore_rest_of_line ();
2249 unwind.personality_index = exp.X_add_number;
2251 demand_empty_rest_of_line ();
2255 /* Parse a personality directive. */
2258 s_arm_unwind_personality (int ignored ATTRIBUTE_UNUSED)
2262 if (unwind.personality_routine || unwind.personality_index != -1)
2263 as_bad (_("duplicate .personality directive"));
2265 name = input_line_pointer;
2266 c = get_symbol_end ();
2267 p = input_line_pointer;
2268 unwind.personality_routine = symbol_find_or_make (name);
2270 demand_empty_rest_of_line ();
2274 /* Parse a directive saving core registers. */
2277 s_arm_unwind_save_core (void)
2283 range = parse_reg_list (&input_line_pointer);
2286 as_bad (_("expected register list"));
2287 ignore_rest_of_line ();
2291 demand_empty_rest_of_line ();
2293 /* Turn .unwind_movsp ip followed by .unwind_save {..., ip, ...}
2294 into .unwind_save {..., sp...}. We aren't bothered about the value of
2295 ip because it is clobbered by calls. */
2296 if (unwind.sp_restored && unwind.fp_reg == 12
2297 && (range & 0x3000) == 0x1000)
2299 unwind.opcode_count--;
2300 unwind.sp_restored = 0;
2301 range = (range | 0x2000) & ~0x1000;
2302 unwind.pending_offset = 0;
2308 /* See if we can use the short opcodes. These pop a block of up to 8
2309 registers starting with r4, plus maybe r14. */
2310 for (n = 0; n < 8; n++)
2312 /* Break at the first non-saved register. */
2313 if ((range & (1 << (n + 4))) == 0)
2316 /* See if there are any other bits set. */
2317 if (n == 0 || (range & (0xfff0 << n) & 0xbff0) != 0)
2319 /* Use the long form. */
2320 op = 0x8000 | ((range >> 4) & 0xfff);
2321 add_unwind_opcode (op, 2);
2325 /* Use the short form. */
2327 op = 0xa8; /* Pop r14. */
2329 op = 0xa0; /* Do not pop r14. */
2331 add_unwind_opcode (op, 1);
2338 op = 0xb100 | (range & 0xf);
2339 add_unwind_opcode (op, 2);
2342 /* Record the number of bytes pushed. */
2343 for (n = 0; n < 16; n++)
2345 if (range & (1 << n))
2346 unwind.frame_size += 4;
2351 /* Parse a directive saving FPA registers. */
2354 s_arm_unwind_save_fpa (int reg)
2360 /* Get Number of registers to transfer. */
2361 if (skip_past_comma (&input_line_pointer) != FAIL)
2364 exp.X_op = O_illegal;
2366 if (exp.X_op != O_constant)
2368 as_bad (_("expected , <constant>"));
2369 ignore_rest_of_line ();
2373 num_regs = exp.X_add_number;
2375 if (num_regs < 1 || num_regs > 4)
2377 as_bad (_("number of registers must be in the range [1:4]"));
2378 ignore_rest_of_line ();
2382 demand_empty_rest_of_line ();
2387 op = 0xb4 | (num_regs - 1);
2388 add_unwind_opcode (op, 1);
2393 op = 0xc800 | (reg << 4) | (num_regs - 1);
2394 add_unwind_opcode (op, 2);
2396 unwind.frame_size += num_regs * 12;
2400 /* Parse a directive saving VFP registers. */
2403 s_arm_unwind_save_vfp (void)
2409 count = parse_vfp_reg_list (&input_line_pointer, ®, 1);
2412 as_bad (_("expected register list"));
2413 ignore_rest_of_line ();
2417 demand_empty_rest_of_line ();
2422 op = 0xb8 | (count - 1);
2423 add_unwind_opcode (op, 1);
2428 op = 0xb300 | (reg << 4) | (count - 1);
2429 add_unwind_opcode (op, 2);
2431 unwind.frame_size += count * 8 + 4;
2435 /* Parse a directive saving iWMMXt data registers. */
2438 s_arm_unwind_save_mmxwr (void)
2446 if (*input_line_pointer == '{')
2447 input_line_pointer++;
2451 reg = arm_reg_parse (&input_line_pointer, REG_TYPE_MMXWR);
2455 as_bad (_(reg_expected_msgs[REG_TYPE_MMXWR]));
2460 as_tsktsk (_("register list not in ascending order"));
2463 if (*input_line_pointer == '-')
2465 input_line_pointer++;
2466 hi_reg = arm_reg_parse (&input_line_pointer, REG_TYPE_MMXWR);
2469 as_bad (_(reg_expected_msgs[REG_TYPE_MMXWR]));
2472 else if (reg >= hi_reg)
2474 as_bad (_("bad register range"));
2477 for (; reg < hi_reg; reg++)
2481 while (skip_past_comma (&input_line_pointer) != FAIL);
2483 if (*input_line_pointer == '}')
2484 input_line_pointer++;
2486 demand_empty_rest_of_line ();
2488 /* Generate any deferred opcodes becuuse we're going to be looking at
2490 flush_pending_unwind ();
2492 for (i = 0; i < 16; i++)
2494 if (mask & (1 << i))
2495 unwind.frame_size += 8;
2498 /* Attempt to combine with a previous opcode. We do this because gcc
2499 likes to output separate unwind directives for a single block of
2501 if (unwind.opcode_count > 0)
2503 i = unwind.opcodes[unwind.opcode_count - 1];
2504 if ((i & 0xf8) == 0xc0)
2507 /* Only merge if the blocks are contiguous. */
2510 if ((mask & 0xfe00) == (1 << 9))
2512 mask |= ((1 << (i + 11)) - 1) & 0xfc00;
2513 unwind.opcode_count--;
2516 else if (i == 6 && unwind.opcode_count >= 2)
2518 i = unwind.opcodes[unwind.opcode_count - 2];
2522 op = 0xffff << (reg - 1);
2524 || ((mask & op) == (1u << (reg - 1))))
2526 op = (1 << (reg + i + 1)) - 1;
2527 op &= ~((1 << reg) - 1);
2529 unwind.opcode_count -= 2;
2536 /* We want to generate opcodes in the order the registers have been
2537 saved, ie. descending order. */
2538 for (reg = 15; reg >= -1; reg--)
2540 /* Save registers in blocks. */
2542 || !(mask & (1 << reg)))
2544 /* We found an unsaved reg. Generate opcodes to save the
2545 preceeding block. */
2551 op = 0xc0 | (hi_reg - 10);
2552 add_unwind_opcode (op, 1);
2557 op = 0xc600 | ((reg + 1) << 4) | ((hi_reg - reg) - 1);
2558 add_unwind_opcode (op, 2);
2567 ignore_rest_of_line ();
2571 s_arm_unwind_save_mmxwcg (void)
2578 if (*input_line_pointer == '{')
2579 input_line_pointer++;
2583 reg = arm_reg_parse (&input_line_pointer, REG_TYPE_MMXWCG);
2587 as_bad (_(reg_expected_msgs[REG_TYPE_MMXWCG]));
2593 as_tsktsk (_("register list not in ascending order"));
2596 if (*input_line_pointer == '-')
2598 input_line_pointer++;
2599 hi_reg = arm_reg_parse (&input_line_pointer, REG_TYPE_MMXWCG);
2602 as_bad (_(reg_expected_msgs[REG_TYPE_MMXWCG]));
2605 else if (reg >= hi_reg)
2607 as_bad (_("bad register range"));
2610 for (; reg < hi_reg; reg++)
2614 while (skip_past_comma (&input_line_pointer) != FAIL);
2616 if (*input_line_pointer == '}')
2617 input_line_pointer++;
2619 demand_empty_rest_of_line ();
2621 /* Generate any deferred opcodes becuuse we're going to be looking at
2623 flush_pending_unwind ();
2625 for (reg = 0; reg < 16; reg++)
2627 if (mask & (1 << reg))
2628 unwind.frame_size += 4;
2631 add_unwind_opcode (op, 2);
2634 ignore_rest_of_line ();
2638 /* Parse an unwind_save directive. */
2641 s_arm_unwind_save (int ignored ATTRIBUTE_UNUSED)
2644 struct reg_entry *reg;
2645 bfd_boolean had_brace = FALSE;
2647 /* Figure out what sort of save we have. */
2648 peek = input_line_pointer;
2656 reg = arm_reg_parse_multi (&peek);
2660 as_bad (_("register expected"));
2661 ignore_rest_of_line ();
2670 as_bad (_("FPA .unwind_save does not take a register list"));
2671 ignore_rest_of_line ();
2674 s_arm_unwind_save_fpa (reg->number);
2677 case REG_TYPE_RN: s_arm_unwind_save_core (); return;
2678 case REG_TYPE_VFD: s_arm_unwind_save_vfp (); return;
2679 case REG_TYPE_MMXWR: s_arm_unwind_save_mmxwr (); return;
2680 case REG_TYPE_MMXWCG: s_arm_unwind_save_mmxwcg (); return;
2683 as_bad (_(".unwind_save does not support this kind of register"));
2684 ignore_rest_of_line ();
2689 /* Parse an unwind_movsp directive. */
2692 s_arm_unwind_movsp (int ignored ATTRIBUTE_UNUSED)
2697 reg = arm_reg_parse (&input_line_pointer, REG_TYPE_RN);
2700 as_bad (_(reg_expected_msgs[REG_TYPE_RN]));
2701 ignore_rest_of_line ();
2704 demand_empty_rest_of_line ();
2706 if (reg == REG_SP || reg == REG_PC)
2708 as_bad (_("SP and PC not permitted in .unwind_movsp directive"));
2712 if (unwind.fp_reg != REG_SP)
2713 as_bad (_("unexpected .unwind_movsp directive"));
2715 /* Generate opcode to restore the value. */
2717 add_unwind_opcode (op, 1);
2719 /* Record the information for later. */
2720 unwind.fp_reg = reg;
2721 unwind.fp_offset = unwind.frame_size;
2722 unwind.sp_restored = 1;
2725 /* Parse an unwind_pad directive. */
2728 s_arm_unwind_pad (int ignored ATTRIBUTE_UNUSED)
2732 if (immediate_for_directive (&offset) == FAIL)
2737 as_bad (_("stack increment must be multiple of 4"));
2738 ignore_rest_of_line ();
2742 /* Don't generate any opcodes, just record the details for later. */
2743 unwind.frame_size += offset;
2744 unwind.pending_offset += offset;
2746 demand_empty_rest_of_line ();
2749 /* Parse an unwind_setfp directive. */
2752 s_arm_unwind_setfp (int ignored ATTRIBUTE_UNUSED)
2758 fp_reg = arm_reg_parse (&input_line_pointer, REG_TYPE_RN);
2759 if (skip_past_comma (&input_line_pointer) == FAIL)
2762 sp_reg = arm_reg_parse (&input_line_pointer, REG_TYPE_RN);
2764 if (fp_reg == FAIL || sp_reg == FAIL)
2766 as_bad (_("expected <reg>, <reg>"));
2767 ignore_rest_of_line ();
2771 /* Optional constant. */
2772 if (skip_past_comma (&input_line_pointer) != FAIL)
2774 if (immediate_for_directive (&offset) == FAIL)
2780 demand_empty_rest_of_line ();
2782 if (sp_reg != 13 && sp_reg != unwind.fp_reg)
2784 as_bad (_("register must be either sp or set by a previous"
2785 "unwind_movsp directive"));
2789 /* Don't generate any opcodes, just record the information for later. */
2790 unwind.fp_reg = fp_reg;
2793 unwind.fp_offset = unwind.frame_size - offset;
2795 unwind.fp_offset -= offset;
2798 /* Parse an unwind_raw directive. */
2801 s_arm_unwind_raw (int ignored ATTRIBUTE_UNUSED)
2804 /* This is an arbitary limit. */
2805 unsigned char op[16];
2809 if (exp.X_op == O_constant
2810 && skip_past_comma (&input_line_pointer) != FAIL)
2812 unwind.frame_size += exp.X_add_number;
2816 exp.X_op = O_illegal;
2818 if (exp.X_op != O_constant)
2820 as_bad (_("expected <offset>, <opcode>"));
2821 ignore_rest_of_line ();
2827 /* Parse the opcode. */
2832 as_bad (_("unwind opcode too long"));
2833 ignore_rest_of_line ();
2835 if (exp.X_op != O_constant || exp.X_add_number & ~0xff)
2837 as_bad (_("invalid unwind opcode"));
2838 ignore_rest_of_line ();
2841 op[count++] = exp.X_add_number;
2843 /* Parse the next byte. */
2844 if (skip_past_comma (&input_line_pointer) == FAIL)
2850 /* Add the opcode bytes in reverse order. */
2852 add_unwind_opcode (op[count], 1);
2854 demand_empty_rest_of_line ();
2858 /* Parse a .eabi_attribute directive. */
2861 s_arm_eabi_attribute (int ignored ATTRIBUTE_UNUSED)
2864 bfd_boolean is_string;
2871 if (exp.X_op != O_constant)
2874 tag = exp.X_add_number;
2875 if (tag == 4 || tag == 5 || tag == 32 || (tag > 32 && (tag & 1) != 0))
2880 if (skip_past_comma (&input_line_pointer) == FAIL)
2882 if (tag == 32 || !is_string)
2885 if (exp.X_op != O_constant)
2887 as_bad (_("expected numeric constant"));
2888 ignore_rest_of_line ();
2891 i = exp.X_add_number;
2893 if (tag == Tag_compatibility
2894 && skip_past_comma (&input_line_pointer) == FAIL)
2896 as_bad (_("expected comma"));
2897 ignore_rest_of_line ();
2902 skip_whitespace(input_line_pointer);
2903 if (*input_line_pointer != '"')
2905 input_line_pointer++;
2906 s = input_line_pointer;
2907 while (*input_line_pointer && *input_line_pointer != '"')
2908 input_line_pointer++;
2909 if (*input_line_pointer != '"')
2911 saved_char = *input_line_pointer;
2912 *input_line_pointer = 0;
2920 if (tag == Tag_compatibility)
2921 elf32_arm_add_eabi_attr_compat (stdoutput, i, s);
2923 elf32_arm_add_eabi_attr_string (stdoutput, tag, s);
2925 elf32_arm_add_eabi_attr_int (stdoutput, tag, i);
2929 *input_line_pointer = saved_char;
2930 input_line_pointer++;
2932 demand_empty_rest_of_line ();
2935 as_bad (_("bad string constant"));
2936 ignore_rest_of_line ();
2939 as_bad (_("expected <tag> , <value>"));
2940 ignore_rest_of_line ();
2943 static void s_arm_arch (int);
2944 static void s_arm_cpu (int);
2945 static void s_arm_fpu (int);
2946 #endif /* OBJ_ELF */
2948 /* This table describes all the machine specific pseudo-ops the assembler
2949 has to support. The fields are:
2950 pseudo-op name without dot
2951 function to call to execute this pseudo-op
2952 Integer arg to pass to the function. */
2954 const pseudo_typeS md_pseudo_table[] =
2956 /* Never called because '.req' does not start a line. */
2957 { "req", s_req, 0 },
2958 { "unreq", s_unreq, 0 },
2959 { "bss", s_bss, 0 },
2960 { "align", s_align, 0 },
2961 { "arm", s_arm, 0 },
2962 { "thumb", s_thumb, 0 },
2963 { "code", s_code, 0 },
2964 { "force_thumb", s_force_thumb, 0 },
2965 { "thumb_func", s_thumb_func, 0 },
2966 { "thumb_set", s_thumb_set, 0 },
2967 { "even", s_even, 0 },
2968 { "ltorg", s_ltorg, 0 },
2969 { "pool", s_ltorg, 0 },
2970 { "syntax", s_syntax, 0 },
2972 { "word", s_arm_elf_cons, 4 },
2973 { "long", s_arm_elf_cons, 4 },
2974 { "rel31", s_arm_rel31, 0 },
2975 { "fnstart", s_arm_unwind_fnstart, 0 },
2976 { "fnend", s_arm_unwind_fnend, 0 },
2977 { "cantunwind", s_arm_unwind_cantunwind, 0 },
2978 { "personality", s_arm_unwind_personality, 0 },
2979 { "personalityindex", s_arm_unwind_personalityindex, 0 },
2980 { "handlerdata", s_arm_unwind_handlerdata, 0 },
2981 { "save", s_arm_unwind_save, 0 },
2982 { "movsp", s_arm_unwind_movsp, 0 },
2983 { "pad", s_arm_unwind_pad, 0 },
2984 { "setfp", s_arm_unwind_setfp, 0 },
2985 { "unwind_raw", s_arm_unwind_raw, 0 },
2986 { "cpu", s_arm_cpu, 0 },
2987 { "arch", s_arm_arch, 0 },
2988 { "fpu", s_arm_fpu, 0 },
2989 { "eabi_attribute", s_arm_eabi_attribute, 0 },
2993 { "extend", float_cons, 'x' },
2994 { "ldouble", float_cons, 'x' },
2995 { "packed", float_cons, 'p' },
2999 /* Parser functions used exclusively in instruction operands. */
3001 /* Generic immediate-value read function for use in insn parsing.
3002 STR points to the beginning of the immediate (the leading #);
3003 VAL receives the value; if the value is outside [MIN, MAX]
3004 issue an error. PREFIX_OPT is true if the immediate prefix is
3008 parse_immediate (char **str, int *val, int min, int max,
3009 bfd_boolean prefix_opt)
3012 my_get_expression (&exp, str, prefix_opt ? GE_OPT_PREFIX : GE_IMM_PREFIX);
3013 if (exp.X_op != O_constant)
3015 inst.error = _("constant expression required");
3019 if (exp.X_add_number < min || exp.X_add_number > max)
3021 inst.error = _("immediate value out of range");
3025 *val = exp.X_add_number;
3029 /* Returns the pseudo-register number of an FPA immediate constant,
3030 or FAIL if there isn't a valid constant here. */
3033 parse_fpa_immediate (char ** str)
3035 LITTLENUM_TYPE words[MAX_LITTLENUMS];
3041 /* First try and match exact strings, this is to guarantee
3042 that some formats will work even for cross assembly. */
3044 for (i = 0; fp_const[i]; i++)
3046 if (strncmp (*str, fp_const[i], strlen (fp_const[i])) == 0)
3050 *str += strlen (fp_const[i]);
3051 if (is_end_of_line[(unsigned char) **str])
3057 /* Just because we didn't get a match doesn't mean that the constant
3058 isn't valid, just that it is in a format that we don't
3059 automatically recognize. Try parsing it with the standard
3060 expression routines. */
3062 memset (words, 0, MAX_LITTLENUMS * sizeof (LITTLENUM_TYPE));
3064 /* Look for a raw floating point number. */
3065 if ((save_in = atof_ieee (*str, 'x', words)) != NULL
3066 && is_end_of_line[(unsigned char) *save_in])
3068 for (i = 0; i < NUM_FLOAT_VALS; i++)
3070 for (j = 0; j < MAX_LITTLENUMS; j++)
3072 if (words[j] != fp_values[i][j])
3076 if (j == MAX_LITTLENUMS)
3084 /* Try and parse a more complex expression, this will probably fail
3085 unless the code uses a floating point prefix (eg "0f"). */
3086 save_in = input_line_pointer;
3087 input_line_pointer = *str;
3088 if (expression (&exp) == absolute_section
3089 && exp.X_op == O_big
3090 && exp.X_add_number < 0)
3092 /* FIXME: 5 = X_PRECISION, should be #define'd where we can use it.
3094 if (gen_to_words (words, 5, (long) 15) == 0)
3096 for (i = 0; i < NUM_FLOAT_VALS; i++)
3098 for (j = 0; j < MAX_LITTLENUMS; j++)
3100 if (words[j] != fp_values[i][j])
3104 if (j == MAX_LITTLENUMS)
3106 *str = input_line_pointer;
3107 input_line_pointer = save_in;
3114 *str = input_line_pointer;
3115 input_line_pointer = save_in;
3116 inst.error = _("invalid FPA immediate expression");
3120 /* Shift operands. */
3123 SHIFT_LSL, SHIFT_LSR, SHIFT_ASR, SHIFT_ROR, SHIFT_RRX
3126 struct asm_shift_name
3129 enum shift_kind kind;
3132 /* Third argument to parse_shift. */
3133 enum parse_shift_mode
3135 NO_SHIFT_RESTRICT, /* Any kind of shift is accepted. */
3136 SHIFT_IMMEDIATE, /* Shift operand must be an immediate. */
3137 SHIFT_LSL_OR_ASR_IMMEDIATE, /* Shift must be LSL or ASR immediate. */
3138 SHIFT_ASR_IMMEDIATE, /* Shift must be ASR immediate. */
3139 SHIFT_LSL_IMMEDIATE, /* Shift must be LSL immediate. */
3142 /* Parse a <shift> specifier on an ARM data processing instruction.
3143 This has three forms:
3145 (LSL|LSR|ASL|ASR|ROR) Rs
3146 (LSL|LSR|ASL|ASR|ROR) #imm
3149 Note that ASL is assimilated to LSL in the instruction encoding, and
3150 RRX to ROR #0 (which cannot be written as such). */
3153 parse_shift (char **str, int i, enum parse_shift_mode mode)
3155 const struct asm_shift_name *shift_name;
3156 enum shift_kind shift;
3161 for (p = *str; ISALPHA (*p); p++)
3166 inst.error = _("shift expression expected");
3170 shift_name = hash_find_n (arm_shift_hsh, *str, p - *str);
3172 if (shift_name == NULL)
3174 inst.error = _("shift expression expected");
3178 shift = shift_name->kind;
3182 case NO_SHIFT_RESTRICT:
3183 case SHIFT_IMMEDIATE: break;
3185 case SHIFT_LSL_OR_ASR_IMMEDIATE:
3186 if (shift != SHIFT_LSL && shift != SHIFT_ASR)
3188 inst.error = _("'LSL' or 'ASR' required");
3193 case SHIFT_LSL_IMMEDIATE:
3194 if (shift != SHIFT_LSL)
3196 inst.error = _("'LSL' required");
3201 case SHIFT_ASR_IMMEDIATE:
3202 if (shift != SHIFT_ASR)
3204 inst.error = _("'ASR' required");
3212 if (shift != SHIFT_RRX)
3214 /* Whitespace can appear here if the next thing is a bare digit. */
3215 skip_whitespace (p);
3217 if (mode == NO_SHIFT_RESTRICT
3218 && (reg = arm_reg_parse (&p, REG_TYPE_RN)) != FAIL)
3220 inst.operands[i].imm = reg;
3221 inst.operands[i].immisreg = 1;
3223 else if (my_get_expression (&inst.reloc.exp, &p, GE_IMM_PREFIX))
3226 inst.operands[i].shift_kind = shift;
3227 inst.operands[i].shifted = 1;
3232 /* Parse a <shifter_operand> for an ARM data processing instruction:
3235 #<immediate>, <rotate>
3239 where <shift> is defined by parse_shift above, and <rotate> is a
3240 multiple of 2 between 0 and 30. Validation of immediate operands
3241 is deferred to md_apply_fix. */
3244 parse_shifter_operand (char **str, int i)
3249 if ((value = arm_reg_parse (str, REG_TYPE_RN)) != FAIL)
3251 inst.operands[i].reg = value;
3252 inst.operands[i].isreg = 1;
3254 /* parse_shift will override this if appropriate */
3255 inst.reloc.exp.X_op = O_constant;
3256 inst.reloc.exp.X_add_number = 0;
3258 if (skip_past_comma (str) == FAIL)
3261 /* Shift operation on register. */
3262 return parse_shift (str, i, NO_SHIFT_RESTRICT);
3265 if (my_get_expression (&inst.reloc.exp, str, GE_IMM_PREFIX))
3268 if (skip_past_comma (str) == SUCCESS)
3270 /* #x, y -- ie explicit rotation by Y. */
3271 if (my_get_expression (&expr, str, GE_NO_PREFIX))
3274 if (expr.X_op != O_constant || inst.reloc.exp.X_op != O_constant)
3276 inst.error = _("constant expression expected");
3280 value = expr.X_add_number;
3281 if (value < 0 || value > 30 || value % 2 != 0)
3283 inst.error = _("invalid rotation");
3286 if (inst.reloc.exp.X_add_number < 0 || inst.reloc.exp.X_add_number > 255)
3288 inst.error = _("invalid constant");
3292 /* Convert to decoded value. md_apply_fix will put it back. */
3293 inst.reloc.exp.X_add_number
3294 = (((inst.reloc.exp.X_add_number << (32 - value))
3295 | (inst.reloc.exp.X_add_number >> value)) & 0xffffffff);
3298 inst.reloc.type = BFD_RELOC_ARM_IMMEDIATE;
3299 inst.reloc.pc_rel = 0;
3303 /* Parse all forms of an ARM address expression. Information is written
3304 to inst.operands[i] and/or inst.reloc.
3306 Preindexed addressing (.preind=1):
3308 [Rn, #offset] .reg=Rn .reloc.exp=offset
3309 [Rn, +/-Rm] .reg=Rn .imm=Rm .immisreg=1 .negative=0/1
3310 [Rn, +/-Rm, shift] .reg=Rn .imm=Rm .immisreg=1 .negative=0/1
3311 .shift_kind=shift .reloc.exp=shift_imm
3313 These three may have a trailing ! which causes .writeback to be set also.
3315 Postindexed addressing (.postind=1, .writeback=1):
3317 [Rn], #offset .reg=Rn .reloc.exp=offset
3318 [Rn], +/-Rm .reg=Rn .imm=Rm .immisreg=1 .negative=0/1
3319 [Rn], +/-Rm, shift .reg=Rn .imm=Rm .immisreg=1 .negative=0/1
3320 .shift_kind=shift .reloc.exp=shift_imm
3322 Unindexed addressing (.preind=0, .postind=0):
3324 [Rn], {option} .reg=Rn .imm=option .immisreg=0
3328 [Rn]{!} shorthand for [Rn,#0]{!}
3329 =immediate .isreg=0 .reloc.exp=immediate
3330 label .reg=PC .reloc.pc_rel=1 .reloc.exp=label
3332 It is the caller's responsibility to check for addressing modes not
3333 supported by the instruction, and to set inst.reloc.type. */
3336 parse_address (char **str, int i)
3341 if (skip_past_char (&p, '[') == FAIL)
3343 if (skip_past_char (&p, '=') == FAIL)
3345 /* bare address - translate to PC-relative offset */
3346 inst.reloc.pc_rel = 1;
3347 inst.operands[i].reg = REG_PC;
3348 inst.operands[i].isreg = 1;
3349 inst.operands[i].preind = 1;
3351 /* else a load-constant pseudo op, no special treatment needed here */
3353 if (my_get_expression (&inst.reloc.exp, &p, GE_NO_PREFIX))
3360 if ((reg = arm_reg_parse (&p, REG_TYPE_RN)) == FAIL)
3362 inst.error = _(reg_expected_msgs[REG_TYPE_RN]);
3365 inst.operands[i].reg = reg;
3366 inst.operands[i].isreg = 1;
3368 if (skip_past_comma (&p) == SUCCESS)
3370 inst.operands[i].preind = 1;
3373 else if (*p == '-') p++, inst.operands[i].negative = 1;
3375 if ((reg = arm_reg_parse (&p, REG_TYPE_RN)) != FAIL)
3377 inst.operands[i].imm = reg;
3378 inst.operands[i].immisreg = 1;
3380 if (skip_past_comma (&p) == SUCCESS)
3381 if (parse_shift (&p, i, SHIFT_IMMEDIATE) == FAIL)
3386 if (inst.operands[i].negative)
3388 inst.operands[i].negative = 0;
3391 if (my_get_expression (&inst.reloc.exp, &p, GE_IMM_PREFIX))
3396 if (skip_past_char (&p, ']') == FAIL)
3398 inst.error = _("']' expected");
3402 if (skip_past_char (&p, '!') == SUCCESS)
3403 inst.operands[i].writeback = 1;
3405 else if (skip_past_comma (&p) == SUCCESS)
3407 if (skip_past_char (&p, '{') == SUCCESS)
3409 /* [Rn], {expr} - unindexed, with option */
3410 if (parse_immediate (&p, &inst.operands[i].imm,
3411 0, 255, TRUE) == FAIL)
3414 if (skip_past_char (&p, '}') == FAIL)
3416 inst.error = _("'}' expected at end of 'option' field");
3419 if (inst.operands[i].preind)
3421 inst.error = _("cannot combine index with option");
3429 inst.operands[i].postind = 1;
3430 inst.operands[i].writeback = 1;
3432 if (inst.operands[i].preind)
3434 inst.error = _("cannot combine pre- and post-indexing");
3439 else if (*p == '-') p++, inst.operands[i].negative = 1;
3441 if ((reg = arm_reg_parse (&p, REG_TYPE_RN)) != FAIL)
3443 inst.operands[i].imm = reg;
3444 inst.operands[i].immisreg = 1;
3446 if (skip_past_comma (&p) == SUCCESS)
3447 if (parse_shift (&p, i, SHIFT_IMMEDIATE) == FAIL)
3452 if (inst.operands[i].negative)
3454 inst.operands[i].negative = 0;
3457 if (my_get_expression (&inst.reloc.exp, &p, GE_IMM_PREFIX))
3463 /* If at this point neither .preind nor .postind is set, we have a
3464 bare [Rn]{!}, which is shorthand for [Rn,#0]{!}. */
3465 if (inst.operands[i].preind == 0 && inst.operands[i].postind == 0)
3467 inst.operands[i].preind = 1;
3468 inst.reloc.exp.X_op = O_constant;
3469 inst.reloc.exp.X_add_number = 0;
3475 /* Miscellaneous. */
3477 /* Parse a PSR flag operand. The value returned is FAIL on syntax error,
3478 or a bitmask suitable to be or-ed into the ARM msr instruction. */
3480 parse_psr (char **str)
3483 unsigned long psr_field;
3485 /* CPSR's and SPSR's can now be lowercase. This is just a convenience
3486 feature for ease of use and backwards compatibility. */
3488 if (*p == 's' || *p == 'S')
3489 psr_field = SPSR_BIT;
3490 else if (*p == 'c' || *p == 'C')
3496 if (strncasecmp (p, "PSR", 3) != 0)
3502 /* A suffix follows. */
3503 const struct asm_psr *psr;
3511 while (ISALNUM (*p) || *p == '_');
3513 psr = hash_find_n (arm_psr_hsh, start, p - start);
3517 psr_field |= psr->field;
3522 goto error; /* Garbage after "[CS]PSR". */
3524 psr_field |= (PSR_c | PSR_f);
3530 inst.error = _("flag for {c}psr instruction expected");
3534 /* Parse the flags argument to CPSI[ED]. Returns FAIL on error, or a
3535 value suitable for splatting into the AIF field of the instruction. */
3538 parse_cps_flags (char **str)
3547 case '\0': case ',':
3550 case 'a': case 'A': saw_a_flag = 1; val |= 0x4; break;
3551 case 'i': case 'I': saw_a_flag = 1; val |= 0x2; break;
3552 case 'f': case 'F': saw_a_flag = 1; val |= 0x1; break;
3555 inst.error = _("unrecognized CPS flag");
3560 if (saw_a_flag == 0)
3562 inst.error = _("missing CPS flags");
3570 /* Parse an endian specifier ("BE" or "LE", case insensitive);
3571 returns 0 for big-endian, 1 for little-endian, FAIL for an error. */
3574 parse_endian_specifier (char **str)
3579 if (strncasecmp (s, "BE", 2))
3581 else if (strncasecmp (s, "LE", 2))
3585 inst.error = _("valid endian specifiers are be or le");
3589 if (ISALNUM (s[2]) || s[2] == '_')
3591 inst.error = _("valid endian specifiers are be or le");
3596 return little_endian;
3599 /* Parse a rotation specifier: ROR #0, #8, #16, #24. *val receives a
3600 value suitable for poking into the rotate field of an sxt or sxta
3601 instruction, or FAIL on error. */
3604 parse_ror (char **str)
3609 if (strncasecmp (s, "ROR", 3) == 0)
3613 inst.error = _("missing rotation field after comma");
3617 if (parse_immediate (&s, &rot, 0, 24, FALSE) == FAIL)
3622 case 0: *str = s; return 0x0;
3623 case 8: *str = s; return 0x1;
3624 case 16: *str = s; return 0x2;
3625 case 24: *str = s; return 0x3;
3628 inst.error = _("rotation can only be 0, 8, 16, or 24");
3633 /* Parse a conditional code (from conds[] below). The value returned is in the
3634 range 0 .. 14, or FAIL. */
3636 parse_cond (char **str)
3639 const struct asm_cond *c;
3642 while (ISALPHA (*q))
3645 c = hash_find_n (arm_cond_hsh, p, q - p);
3648 inst.error = _("condition required");
3656 /* Parse the operands of a table branch instruction. Similar to a memory
3659 parse_tb (char **str)
3664 if (skip_past_char (&p, '[') == FAIL)
3667 if ((reg = arm_reg_parse (&p, REG_TYPE_RN)) == FAIL)
3669 inst.error = _(reg_expected_msgs[REG_TYPE_RN]);
3672 inst.operands[0].reg = reg;
3674 if (skip_past_comma (&p) == FAIL)
3677 if ((reg = arm_reg_parse (&p, REG_TYPE_RN)) == FAIL)
3679 inst.error = _(reg_expected_msgs[REG_TYPE_RN]);
3682 inst.operands[0].imm = reg;
3684 if (skip_past_comma (&p) == SUCCESS)
3686 if (parse_shift (&p, 0, SHIFT_LSL_IMMEDIATE) == FAIL)
3688 if (inst.reloc.exp.X_add_number != 1)
3690 inst.error = _("invalid shift");
3693 inst.operands[0].shifted = 1;
3696 if (skip_past_char (&p, ']') == FAIL)
3698 inst.error = _("']' expected");
3705 /* Matcher codes for parse_operands. */
3706 enum operand_parse_code
3708 OP_stop, /* end of line */
3710 OP_RR, /* ARM register */
3711 OP_RRnpc, /* ARM register, not r15 */
3712 OP_RRnpcb, /* ARM register, not r15, in square brackets */
3713 OP_RRw, /* ARM register, not r15, optional trailing ! */
3714 OP_RCP, /* Coprocessor number */
3715 OP_RCN, /* Coprocessor register */
3716 OP_RF, /* FPA register */
3717 OP_RVS, /* VFP single precision register */
3718 OP_RVD, /* VFP double precision register */
3719 OP_RVC, /* VFP control register */
3720 OP_RMF, /* Maverick F register */
3721 OP_RMD, /* Maverick D register */
3722 OP_RMFX, /* Maverick FX register */
3723 OP_RMDX, /* Maverick DX register */
3724 OP_RMAX, /* Maverick AX register */
3725 OP_RMDS, /* Maverick DSPSC register */
3726 OP_RIWR, /* iWMMXt wR register */
3727 OP_RIWC, /* iWMMXt wC register */
3728 OP_RIWG, /* iWMMXt wCG register */
3729 OP_RXA, /* XScale accumulator register */
3731 OP_REGLST, /* ARM register list */
3732 OP_VRSLST, /* VFP single-precision register list */
3733 OP_VRDLST, /* VFP double-precision register list */
3735 OP_I7, /* immediate value 0 .. 7 */
3736 OP_I15, /* 0 .. 15 */
3737 OP_I16, /* 1 .. 16 */
3738 OP_I31, /* 0 .. 31 */
3739 OP_I31w, /* 0 .. 31, optional trailing ! */
3740 OP_I32, /* 1 .. 32 */
3741 OP_I63s, /* -64 .. 63 */
3742 OP_I255, /* 0 .. 255 */
3743 OP_Iffff, /* 0 .. 65535 */
3745 OP_I4b, /* immediate, prefix optional, 1 .. 4 */
3746 OP_I7b, /* 0 .. 7 */
3747 OP_I15b, /* 0 .. 15 */
3748 OP_I31b, /* 0 .. 31 */
3750 OP_SH, /* shifter operand */
3751 OP_ADDR, /* Memory address expression (any mode) */
3752 OP_EXP, /* arbitrary expression */
3753 OP_EXPi, /* same, with optional immediate prefix */
3754 OP_EXPr, /* same, with optional relocation suffix */
3756 OP_CPSF, /* CPS flags */
3757 OP_ENDI, /* Endianness specifier */
3758 OP_PSR, /* CPSR/SPSR mask for msr */
3759 OP_COND, /* conditional code */
3760 OP_TB, /* Table branch. */
3762 OP_RRnpc_I0, /* ARM register or literal 0 */
3763 OP_RR_EXr, /* ARM register or expression with opt. reloc suff. */
3764 OP_RR_EXi, /* ARM register or expression with imm prefix */
3765 OP_RF_IF, /* FPA register or immediate */
3766 OP_RIWR_RIWC, /* iWMMXt R or C reg */
3768 /* Optional operands. */
3769 OP_oI7b, /* immediate, prefix optional, 0 .. 7 */
3770 OP_oI31b, /* 0 .. 31 */
3771 OP_oIffffb, /* 0 .. 65535 */
3772 OP_oI255c, /* curly-brace enclosed, 0 .. 255 */
3774 OP_oRR, /* ARM register */
3775 OP_oRRnpc, /* ARM register, not the PC */
3776 OP_oSHll, /* LSL immediate */
3777 OP_oSHar, /* ASR immediate */
3778 OP_oSHllar, /* LSL or ASR immediate */
3779 OP_oROR, /* ROR 0/8/16/24 */
3781 OP_FIRST_OPTIONAL = OP_oI7b
3784 /* Generic instruction operand parser. This does no encoding and no
3785 semantic validation; it merely squirrels values away in the inst
3786 structure. Returns SUCCESS or FAIL depending on whether the
3787 specified grammar matched. */
3789 parse_operands (char *str, const unsigned char *pattern)
3791 unsigned const char *upat = pattern;
3792 char *backtrack_pos = 0;
3793 const char *backtrack_error = 0;
3794 int i, val, backtrack_index = 0;
3796 #define po_char_or_fail(chr) do { \
3797 if (skip_past_char (&str, chr) == FAIL) \
3801 #define po_reg_or_fail(regtype) do { \
3802 val = arm_reg_parse (&str, regtype); \
3805 inst.error = _(reg_expected_msgs[regtype]); \
3808 inst.operands[i].reg = val; \
3809 inst.operands[i].isreg = 1; \
3812 #define po_reg_or_goto(regtype, label) do { \
3813 val = arm_reg_parse (&str, regtype); \
3817 inst.operands[i].reg = val; \
3818 inst.operands[i].isreg = 1; \
3821 #define po_imm_or_fail(min, max, popt) do { \
3822 if (parse_immediate (&str, &val, min, max, popt) == FAIL) \
3824 inst.operands[i].imm = val; \
3827 #define po_misc_or_fail(expr) do { \
3832 skip_whitespace (str);
3834 for (i = 0; upat[i] != OP_stop; i++)
3836 if (upat[i] >= OP_FIRST_OPTIONAL)
3838 /* Remember where we are in case we need to backtrack. */
3839 assert (!backtrack_pos);
3840 backtrack_pos = str;
3841 backtrack_error = inst.error;
3842 backtrack_index = i;
3846 po_char_or_fail (',');
3854 case OP_RR: po_reg_or_fail (REG_TYPE_RN); break;
3855 case OP_RCP: po_reg_or_fail (REG_TYPE_CP); break;
3856 case OP_RCN: po_reg_or_fail (REG_TYPE_CN); break;
3857 case OP_RF: po_reg_or_fail (REG_TYPE_FN); break;
3858 case OP_RVS: po_reg_or_fail (REG_TYPE_VFS); break;
3859 case OP_RVD: po_reg_or_fail (REG_TYPE_VFD); break;
3860 case OP_RVC: po_reg_or_fail (REG_TYPE_VFC); break;
3861 case OP_RMF: po_reg_or_fail (REG_TYPE_MVF); break;
3862 case OP_RMD: po_reg_or_fail (REG_TYPE_MVD); break;
3863 case OP_RMFX: po_reg_or_fail (REG_TYPE_MVFX); break;
3864 case OP_RMDX: po_reg_or_fail (REG_TYPE_MVDX); break;
3865 case OP_RMAX: po_reg_or_fail (REG_TYPE_MVAX); break;
3866 case OP_RMDS: po_reg_or_fail (REG_TYPE_DSPSC); break;
3867 case OP_RIWR: po_reg_or_fail (REG_TYPE_MMXWR); break;
3868 case OP_RIWC: po_reg_or_fail (REG_TYPE_MMXWC); break;
3869 case OP_RIWG: po_reg_or_fail (REG_TYPE_MMXWCG); break;
3870 case OP_RXA: po_reg_or_fail (REG_TYPE_XSCALE); break;
3873 po_char_or_fail ('[');
3874 po_reg_or_fail (REG_TYPE_RN);
3875 po_char_or_fail (']');
3879 po_reg_or_fail (REG_TYPE_RN);
3880 if (skip_past_char (&str, '!') == SUCCESS)
3881 inst.operands[i].writeback = 1;
3885 case OP_I7: po_imm_or_fail ( 0, 7, FALSE); break;
3886 case OP_I15: po_imm_or_fail ( 0, 15, FALSE); break;
3887 case OP_I16: po_imm_or_fail ( 1, 16, FALSE); break;
3888 case OP_I31: po_imm_or_fail ( 0, 31, FALSE); break;
3889 case OP_I32: po_imm_or_fail ( 1, 32, FALSE); break;
3890 case OP_I63s: po_imm_or_fail (-64, 63, FALSE); break;
3891 case OP_I255: po_imm_or_fail ( 0, 255, FALSE); break;
3892 case OP_Iffff: po_imm_or_fail ( 0, 0xffff, FALSE); break;
3894 case OP_I4b: po_imm_or_fail ( 1, 4, TRUE); break;
3896 case OP_I7b: po_imm_or_fail ( 0, 7, TRUE); break;
3897 case OP_I15b: po_imm_or_fail ( 0, 15, TRUE); break;
3899 case OP_I31b: po_imm_or_fail ( 0, 31, TRUE); break;
3900 case OP_oIffffb: po_imm_or_fail ( 0, 0xffff, TRUE); break;
3902 /* Immediate variants */
3904 po_char_or_fail ('{');
3905 po_imm_or_fail (0, 255, TRUE);
3906 po_char_or_fail ('}');
3910 /* The expression parser chokes on a trailing !, so we have
3911 to find it first and zap it. */
3914 while (*s && *s != ',')
3919 inst.operands[i].writeback = 1;
3921 po_imm_or_fail (0, 31, TRUE);
3929 po_misc_or_fail (my_get_expression (&inst.reloc.exp, &str,
3934 po_misc_or_fail (my_get_expression (&inst.reloc.exp, &str,
3939 po_misc_or_fail (my_get_expression (&inst.reloc.exp, &str,
3941 if (inst.reloc.exp.X_op == O_symbol)
3943 val = parse_reloc (&str);
3946 inst.error = _("unrecognized relocation suffix");
3949 else if (val != BFD_RELOC_UNUSED)
3951 inst.operands[i].imm = val;
3952 inst.operands[i].hasreloc = 1;
3957 /* Register or expression */
3958 case OP_RR_EXr: po_reg_or_goto (REG_TYPE_RN, EXPr); break;
3959 case OP_RR_EXi: po_reg_or_goto (REG_TYPE_RN, EXPi); break;
3961 /* Register or immediate */
3962 case OP_RRnpc_I0: po_reg_or_goto (REG_TYPE_RN, I0); break;
3963 I0: po_imm_or_fail (0, 0, FALSE); break;
3965 case OP_RF_IF: po_reg_or_goto (REG_TYPE_FN, IF); break;
3967 if (!is_immediate_prefix (*str))
3970 val = parse_fpa_immediate (&str);
3973 /* FPA immediates are encoded as registers 8-15.
3974 parse_fpa_immediate has already applied the offset. */
3975 inst.operands[i].reg = val;
3976 inst.operands[i].isreg = 1;
3979 /* Two kinds of register */
3982 struct reg_entry *rege = arm_reg_parse_multi (&str);
3983 if (rege->type != REG_TYPE_MMXWR
3984 && rege->type != REG_TYPE_MMXWC
3985 && rege->type != REG_TYPE_MMXWCG)
3987 inst.error = _("iWMMXt data or control register expected");
3990 inst.operands[i].reg = rege->number;
3991 inst.operands[i].isreg = (rege->type == REG_TYPE_MMXWR);
3996 case OP_CPSF: val = parse_cps_flags (&str); break;
3997 case OP_ENDI: val = parse_endian_specifier (&str); break;
3998 case OP_oROR: val = parse_ror (&str); break;
3999 case OP_PSR: val = parse_psr (&str); break;
4000 case OP_COND: val = parse_cond (&str); break;
4003 po_misc_or_fail (parse_tb (&str));
4006 /* Register lists */
4008 val = parse_reg_list (&str);
4011 inst.operands[1].writeback = 1;
4017 val = parse_vfp_reg_list (&str, &inst.operands[i].reg, 0);
4021 val = parse_vfp_reg_list (&str, &inst.operands[i].reg, 1);
4024 /* Addressing modes */
4026 po_misc_or_fail (parse_address (&str, i));
4030 po_misc_or_fail (parse_shifter_operand (&str, i));
4034 po_misc_or_fail (parse_shift (&str, i, SHIFT_LSL_IMMEDIATE));
4038 po_misc_or_fail (parse_shift (&str, i, SHIFT_ASR_IMMEDIATE));
4042 po_misc_or_fail (parse_shift (&str, i, SHIFT_LSL_OR_ASR_IMMEDIATE));
4046 as_fatal ("unhandled operand code %d", upat[i]);
4049 /* Various value-based sanity checks and shared operations. We
4050 do not signal immediate failures for the register constraints;
4051 this allows a syntax error to take precedence. */
4059 if (inst.operands[i].isreg && inst.operands[i].reg == REG_PC)
4060 inst.error = BAD_PC;
4073 inst.operands[i].imm = val;
4080 /* If we get here, this operand was successfully parsed. */
4081 inst.operands[i].present = 1;
4085 inst.error = BAD_ARGS;
4091 /* Do not backtrack over a trailing optional argument that
4092 absorbed some text. We will only fail again, with the
4093 'garbage following instruction' error message, which is
4094 probably less helpful than the current one. */
4095 if (backtrack_index == i && backtrack_pos != str
4096 && upat[i+1] == OP_stop)
4099 /* Try again, skipping the optional argument at backtrack_pos. */
4100 str = backtrack_pos;
4101 inst.error = backtrack_error;
4102 inst.operands[backtrack_index].present = 0;
4103 i = backtrack_index;
4107 /* Check that we have parsed all the arguments. */
4108 if (*str != '\0' && !inst.error)
4109 inst.error = _("garbage following instruction");
4111 return inst.error ? FAIL : SUCCESS;
4114 #undef po_char_or_fail
4115 #undef po_reg_or_fail
4116 #undef po_reg_or_goto
4117 #undef po_imm_or_fail
4119 /* Shorthand macro for instruction encoding functions issuing errors. */
4120 #define constraint(expr, err) do { \
4128 /* Functions for operand encoding. ARM, then Thumb. */
4130 #define rotate_left(v, n) (v << n | v >> (32 - n))
4132 /* If VAL can be encoded in the immediate field of an ARM instruction,
4133 return the encoded form. Otherwise, return FAIL. */
4136 encode_arm_immediate (unsigned int val)
4140 for (i = 0; i < 32; i += 2)
4141 if ((a = rotate_left (val, i)) <= 0xff)
4142 return a | (i << 7); /* 12-bit pack: [shift-cnt,const]. */
4147 /* If VAL can be encoded in the immediate field of a Thumb32 instruction,
4148 return the encoded form. Otherwise, return FAIL. */
4150 encode_thumb32_immediate (unsigned int val)
4157 for (i = 1; i <= 24; i++)
4160 if ((val & ~(0xff << i)) == 0)
4161 return ((val >> i) & 0x7f) | ((32 - i) << 7);
4165 if (val == ((a << 16) | a))
4167 if (val == ((a << 24) | (a << 16) | (a << 8) | a))
4171 if (val == ((a << 16) | a))
4172 return 0x200 | (a >> 8);
4176 /* Encode a VFP SP register number into inst.instruction. */
4179 encode_arm_vfp_sp_reg (int reg, enum vfp_sp_reg_pos pos)
4184 inst.instruction |= ((reg >> 1) << 12) | ((reg & 1) << 22);
4188 inst.instruction |= ((reg >> 1) << 16) | ((reg & 1) << 7);
4192 inst.instruction |= ((reg >> 1) << 0) | ((reg & 1) << 5);
4200 /* Encode a <shift> in an ARM-format instruction. The immediate,
4201 if any, is handled by md_apply_fix. */
4203 encode_arm_shift (int i)
4205 if (inst.operands[i].shift_kind == SHIFT_RRX)
4206 inst.instruction |= SHIFT_ROR << 5;
4209 inst.instruction |= inst.operands[i].shift_kind << 5;
4210 if (inst.operands[i].immisreg)
4212 inst.instruction |= SHIFT_BY_REG;
4213 inst.instruction |= inst.operands[i].imm << 8;
4216 inst.reloc.type = BFD_RELOC_ARM_SHIFT_IMM;
4221 encode_arm_shifter_operand (int i)
4223 if (inst.operands[i].isreg)
4225 inst.instruction |= inst.operands[i].reg;
4226 encode_arm_shift (i);
4229 inst.instruction |= INST_IMMEDIATE;
4232 /* Subroutine of encode_arm_addr_mode_2 and encode_arm_addr_mode_3. */
4234 encode_arm_addr_mode_common (int i, bfd_boolean is_t)
4236 assert (inst.operands[i].isreg);
4237 inst.instruction |= inst.operands[i].reg << 16;
4239 if (inst.operands[i].preind)
4243 inst.error = _("instruction does not accept preindexed addressing");
4246 inst.instruction |= PRE_INDEX;
4247 if (inst.operands[i].writeback)
4248 inst.instruction |= WRITE_BACK;
4251 else if (inst.operands[i].postind)
4253 assert (inst.operands[i].writeback);
4255 inst.instruction |= WRITE_BACK;
4257 else /* unindexed - only for coprocessor */
4259 inst.error = _("instruction does not accept unindexed addressing");
4263 if (((inst.instruction & WRITE_BACK) || !(inst.instruction & PRE_INDEX))
4264 && (((inst.instruction & 0x000f0000) >> 16)
4265 == ((inst.instruction & 0x0000f000) >> 12)))
4266 as_warn ((inst.instruction & LOAD_BIT)
4267 ? _("destination register same as write-back base")
4268 : _("source register same as write-back base"));
4271 /* inst.operands[i] was set up by parse_address. Encode it into an
4272 ARM-format mode 2 load or store instruction. If is_t is true,
4273 reject forms that cannot be used with a T instruction (i.e. not
4276 encode_arm_addr_mode_2 (int i, bfd_boolean is_t)
4278 encode_arm_addr_mode_common (i, is_t);
4280 if (inst.operands[i].immisreg)
4282 inst.instruction |= INST_IMMEDIATE; /* yes, this is backwards */
4283 inst.instruction |= inst.operands[i].imm;
4284 if (!inst.operands[i].negative)
4285 inst.instruction |= INDEX_UP;
4286 if (inst.operands[i].shifted)
4288 if (inst.operands[i].shift_kind == SHIFT_RRX)
4289 inst.instruction |= SHIFT_ROR << 5;
4292 inst.instruction |= inst.operands[i].shift_kind << 5;
4293 inst.reloc.type = BFD_RELOC_ARM_SHIFT_IMM;
4297 else /* immediate offset in inst.reloc */
4299 if (inst.reloc.type == BFD_RELOC_UNUSED)
4300 inst.reloc.type = BFD_RELOC_ARM_OFFSET_IMM;
4304 /* inst.operands[i] was set up by parse_address. Encode it into an
4305 ARM-format mode 3 load or store instruction. Reject forms that
4306 cannot be used with such instructions. If is_t is true, reject
4307 forms that cannot be used with a T instruction (i.e. not
4310 encode_arm_addr_mode_3 (int i, bfd_boolean is_t)
4312 if (inst.operands[i].immisreg && inst.operands[i].shifted)
4314 inst.error = _("instruction does not accept scaled register index");
4318 encode_arm_addr_mode_common (i, is_t);
4320 if (inst.operands[i].immisreg)
4322 inst.instruction |= inst.operands[i].imm;
4323 if (!inst.operands[i].negative)
4324 inst.instruction |= INDEX_UP;
4326 else /* immediate offset in inst.reloc */
4328 inst.instruction |= HWOFFSET_IMM;
4329 if (inst.reloc.type == BFD_RELOC_UNUSED)
4330 inst.reloc.type = BFD_RELOC_ARM_OFFSET_IMM8;
4334 /* inst.operands[i] was set up by parse_address. Encode it into an
4335 ARM-format instruction. Reject all forms which cannot be encoded
4336 into a coprocessor load/store instruction. If wb_ok is false,
4337 reject use of writeback; if unind_ok is false, reject use of
4338 unindexed addressing. If reloc_override is not 0, use it instead
4339 of BFD_ARM_CP_OFF_IMM. */
4342 encode_arm_cp_address (int i, int wb_ok, int unind_ok, int reloc_override)
4344 inst.instruction |= inst.operands[i].reg << 16;
4346 assert (!(inst.operands[i].preind && inst.operands[i].postind));
4348 if (!inst.operands[i].preind && !inst.operands[i].postind) /* unindexed */
4350 assert (!inst.operands[i].writeback);
4353 inst.error = _("instruction does not support unindexed addressing");
4356 inst.instruction |= inst.operands[i].imm;
4357 inst.instruction |= INDEX_UP;
4361 if (inst.operands[i].preind)
4362 inst.instruction |= PRE_INDEX;
4364 if (inst.operands[i].writeback)
4366 if (inst.operands[i].reg == REG_PC)
4368 inst.error = _("pc may not be used with write-back");
4373 inst.error = _("instruction does not support writeback");
4376 inst.instruction |= WRITE_BACK;
4380 inst.reloc.type = reloc_override;
4381 else if (thumb_mode)
4382 inst.reloc.type = BFD_RELOC_ARM_T32_CP_OFF_IMM;
4384 inst.reloc.type = BFD_RELOC_ARM_CP_OFF_IMM;
4388 /* inst.reloc.exp describes an "=expr" load pseudo-operation.
4389 Determine whether it can be performed with a move instruction; if
4390 it can, convert inst.instruction to that move instruction and
4391 return 1; if it can't, convert inst.instruction to a literal-pool
4392 load and return 0. If this is not a valid thing to do in the
4393 current context, set inst.error and return 1.
4395 inst.operands[i] describes the destination register. */
4398 move_or_literal_pool (int i, bfd_boolean thumb_p, bfd_boolean mode_3)
4400 if ((inst.instruction & (thumb_p ? THUMB_LOAD_BIT : LOAD_BIT)) == 0)
4402 inst.error = _("invalid pseudo operation");
4405 if (inst.reloc.exp.X_op != O_constant && inst.reloc.exp.X_op != O_symbol)
4407 inst.error = _("constant expression expected");
4410 if (inst.reloc.exp.X_op == O_constant)
4414 if ((inst.reloc.exp.X_add_number & ~0xFF) == 0)
4416 /* This can be done with a mov(1) instruction. */
4417 inst.instruction = T_OPCODE_MOV_I8 | (inst.operands[i].reg << 8);
4418 inst.instruction |= inst.reloc.exp.X_add_number;
4424 int value = encode_arm_immediate (inst.reloc.exp.X_add_number);
4427 /* This can be done with a mov instruction. */
4428 inst.instruction &= LITERAL_MASK;
4429 inst.instruction |= INST_IMMEDIATE | (OPCODE_MOV << DATA_OP_SHIFT);
4430 inst.instruction |= value & 0xfff;
4434 value = encode_arm_immediate (~inst.reloc.exp.X_add_number);
4437 /* This can be done with a mvn instruction. */
4438 inst.instruction &= LITERAL_MASK;
4439 inst.instruction |= INST_IMMEDIATE | (OPCODE_MVN << DATA_OP_SHIFT);
4440 inst.instruction |= value & 0xfff;
4446 if (add_to_lit_pool () == FAIL)
4448 inst.error = _("literal pool insertion failed");
4451 inst.operands[1].reg = REG_PC;
4452 inst.operands[1].isreg = 1;
4453 inst.operands[1].preind = 1;
4454 inst.reloc.pc_rel = 1;
4455 inst.reloc.type = (thumb_p
4456 ? BFD_RELOC_ARM_THUMB_OFFSET
4458 ? BFD_RELOC_ARM_HWLITERAL
4459 : BFD_RELOC_ARM_LITERAL));
4463 /* Functions for instruction encoding, sorted by subarchitecture.
4464 First some generics; their names are taken from the conventional
4465 bit positions for register arguments in ARM format instructions. */
4475 inst.instruction |= inst.operands[0].reg << 12;
4481 inst.instruction |= inst.operands[0].reg << 12;
4482 inst.instruction |= inst.operands[1].reg;
4488 inst.instruction |= inst.operands[0].reg << 12;
4489 inst.instruction |= inst.operands[1].reg << 16;
4495 inst.instruction |= inst.operands[0].reg << 16;
4496 inst.instruction |= inst.operands[1].reg << 12;
4502 unsigned Rn = inst.operands[2].reg;
4503 /* Enforce resutrictions on SWP instruction. */
4504 if ((inst.instruction & 0x0fbfffff) == 0x01000090)
4505 constraint (Rn == inst.operands[0].reg || Rn == inst.operands[1].reg,
4506 _("Rn must not overlap other operands"));
4507 inst.instruction |= inst.operands[0].reg << 12;
4508 inst.instruction |= inst.operands[1].reg;
4509 inst.instruction |= Rn << 16;
4515 inst.instruction |= inst.operands[0].reg << 12;
4516 inst.instruction |= inst.operands[1].reg << 16;
4517 inst.instruction |= inst.operands[2].reg;
4523 inst.instruction |= inst.operands[0].reg;
4524 inst.instruction |= inst.operands[1].reg << 12;
4525 inst.instruction |= inst.operands[2].reg << 16;
4531 inst.instruction |= inst.operands[0].imm;
4537 inst.instruction |= inst.operands[0].reg << 12;
4538 encode_arm_cp_address (1, TRUE, TRUE, 0);
4541 /* ARM instructions, in alphabetical order by function name (except
4542 that wrapper functions appear immediately after the function they
4545 /* This is a pseudo-op of the form "adr rd, label" to be converted
4546 into a relative address of the form "add rd, pc, #label-.-8". */
4551 inst.instruction |= (inst.operands[0].reg << 12); /* Rd */
4553 /* Frag hacking will turn this into a sub instruction if the offset turns
4554 out to be negative. */
4555 inst.reloc.type = BFD_RELOC_ARM_IMMEDIATE;
4556 inst.reloc.pc_rel = 1;
4557 inst.reloc.exp.X_add_number -= 8;
4560 /* This is a pseudo-op of the form "adrl rd, label" to be converted
4561 into a relative address of the form:
4562 add rd, pc, #low(label-.-8)"
4563 add rd, rd, #high(label-.-8)" */
4568 inst.instruction |= (inst.operands[0].reg << 12); /* Rd */
4570 /* Frag hacking will turn this into a sub instruction if the offset turns
4571 out to be negative. */
4572 inst.reloc.type = BFD_RELOC_ARM_ADRL_IMMEDIATE;
4573 inst.reloc.pc_rel = 1;
4574 inst.size = INSN_SIZE * 2;
4575 inst.reloc.exp.X_add_number -= 8;
4581 if (!inst.operands[1].present)
4582 inst.operands[1].reg = inst.operands[0].reg;
4583 inst.instruction |= inst.operands[0].reg << 12;
4584 inst.instruction |= inst.operands[1].reg << 16;
4585 encode_arm_shifter_operand (2);
4591 unsigned int msb = inst.operands[1].imm + inst.operands[2].imm;
4592 constraint (msb > 32, _("bit-field extends past end of register"));
4593 /* The instruction encoding stores the LSB and MSB,
4594 not the LSB and width. */
4595 inst.instruction |= inst.operands[0].reg << 12;
4596 inst.instruction |= inst.operands[1].imm << 7;
4597 inst.instruction |= (msb - 1) << 16;
4605 /* #0 in second position is alternative syntax for bfc, which is
4606 the same instruction but with REG_PC in the Rm field. */
4607 if (!inst.operands[1].isreg)
4608 inst.operands[1].reg = REG_PC;
4610 msb = inst.operands[2].imm + inst.operands[3].imm;
4611 constraint (msb > 32, _("bit-field extends past end of register"));
4612 /* The instruction encoding stores the LSB and MSB,
4613 not the LSB and width. */
4614 inst.instruction |= inst.operands[0].reg << 12;
4615 inst.instruction |= inst.operands[1].reg;
4616 inst.instruction |= inst.operands[2].imm << 7;
4617 inst.instruction |= (msb - 1) << 16;
4623 constraint (inst.operands[2].imm + inst.operands[3].imm > 32,
4624 _("bit-field extends past end of register"));
4625 inst.instruction |= inst.operands[0].reg << 12;
4626 inst.instruction |= inst.operands[1].reg;
4627 inst.instruction |= inst.operands[2].imm << 7;
4628 inst.instruction |= (inst.operands[3].imm - 1) << 16;
4631 /* ARM V5 breakpoint instruction (argument parse)
4632 BKPT <16 bit unsigned immediate>
4633 Instruction is not conditional.
4634 The bit pattern given in insns[] has the COND_ALWAYS condition,
4635 and it is an error if the caller tried to override that. */
4640 /* Top 12 of 16 bits to bits 19:8. */
4641 inst.instruction |= (inst.operands[0].imm & 0xfff0) << 4;
4643 /* Bottom 4 of 16 bits to bits 3:0. */
4644 inst.instruction |= inst.operands[0].imm & 0xf;
4648 encode_branch (int default_reloc)
4650 if (inst.operands[0].hasreloc)
4652 constraint (inst.operands[0].imm != BFD_RELOC_ARM_PLT32,
4653 _("the only suffix valid here is '(plt)'"));
4654 inst.reloc.type = BFD_RELOC_ARM_PLT32;
4658 inst.reloc.type = default_reloc;
4660 inst.reloc.pc_rel = 1;
4667 if (EF_ARM_EABI_VERSION (meabi_flags) >= EF_ARM_EABI_VER4)
4668 encode_branch (BFD_RELOC_ARM_PCREL_JUMP);
4671 encode_branch (BFD_RELOC_ARM_PCREL_BRANCH);
4678 if (EF_ARM_EABI_VERSION (meabi_flags) >= EF_ARM_EABI_VER4)
4680 if (inst.cond == COND_ALWAYS)
4681 encode_branch (BFD_RELOC_ARM_PCREL_CALL);
4683 encode_branch (BFD_RELOC_ARM_PCREL_JUMP);
4687 encode_branch (BFD_RELOC_ARM_PCREL_BRANCH);
4690 /* ARM V5 branch-link-exchange instruction (argument parse)
4691 BLX <target_addr> ie BLX(1)
4692 BLX{<condition>} <Rm> ie BLX(2)
4693 Unfortunately, there are two different opcodes for this mnemonic.
4694 So, the insns[].value is not used, and the code here zaps values
4695 into inst.instruction.
4696 Also, the <target_addr> can be 25 bits, hence has its own reloc. */
4701 if (inst.operands[0].isreg)
4703 /* Arg is a register; the opcode provided by insns[] is correct.
4704 It is not illegal to do "blx pc", just useless. */
4705 if (inst.operands[0].reg == REG_PC)
4706 as_tsktsk (_("use of r15 in blx in ARM mode is not really useful"));
4708 inst.instruction |= inst.operands[0].reg;
4712 /* Arg is an address; this instruction cannot be executed
4713 conditionally, and the opcode must be adjusted. */
4714 constraint (inst.cond != COND_ALWAYS, BAD_COND);
4715 inst.instruction = 0xfa000000;
4717 if (EF_ARM_EABI_VERSION (meabi_flags) >= EF_ARM_EABI_VER4)
4718 encode_branch (BFD_RELOC_ARM_PCREL_CALL);
4721 encode_branch (BFD_RELOC_ARM_PCREL_BLX);
4728 if (inst.operands[0].reg == REG_PC)
4729 as_tsktsk (_("use of r15 in bx in ARM mode is not really useful"));
4731 inst.instruction |= inst.operands[0].reg;
4735 /* ARM v5TEJ. Jump to Jazelle code. */
4740 if (inst.operands[0].reg == REG_PC)
4741 as_tsktsk (_("use of r15 in bxj is not really useful"));
4743 inst.instruction |= inst.operands[0].reg;
4746 /* Co-processor data operation:
4747 CDP{cond} <coproc>, <opcode_1>, <CRd>, <CRn>, <CRm>{, <opcode_2>}
4748 CDP2 <coproc>, <opcode_1>, <CRd>, <CRn>, <CRm>{, <opcode_2>} */
4752 inst.instruction |= inst.operands[0].reg << 8;
4753 inst.instruction |= inst.operands[1].imm << 20;
4754 inst.instruction |= inst.operands[2].reg << 12;
4755 inst.instruction |= inst.operands[3].reg << 16;
4756 inst.instruction |= inst.operands[4].reg;
4757 inst.instruction |= inst.operands[5].imm << 5;
4763 inst.instruction |= inst.operands[0].reg << 16;
4764 encode_arm_shifter_operand (1);
4767 /* Transfer between coprocessor and ARM registers.
4768 MRC{cond} <coproc>, <opcode_1>, <Rd>, <CRn>, <CRm>{, <opcode_2>}
4773 No special properties. */
4778 inst.instruction |= inst.operands[0].reg << 8;
4779 inst.instruction |= inst.operands[1].imm << 21;
4780 inst.instruction |= inst.operands[2].reg << 12;
4781 inst.instruction |= inst.operands[3].reg << 16;
4782 inst.instruction |= inst.operands[4].reg;
4783 inst.instruction |= inst.operands[5].imm << 5;
4786 /* Transfer between coprocessor register and pair of ARM registers.
4787 MCRR{cond} <coproc>, <opcode>, <Rd>, <Rn>, <CRm>.
4792 Two XScale instructions are special cases of these:
4794 MAR{cond} acc0, <RdLo>, <RdHi> == MCRR{cond} p0, #0, <RdLo>, <RdHi>, c0
4795 MRA{cond} acc0, <RdLo>, <RdHi> == MRRC{cond} p0, #0, <RdLo>, <RdHi>, c0
4797 Result unpredicatable if Rd or Rn is R15. */
4802 inst.instruction |= inst.operands[0].reg << 8;
4803 inst.instruction |= inst.operands[1].imm << 4;
4804 inst.instruction |= inst.operands[2].reg << 12;
4805 inst.instruction |= inst.operands[3].reg << 16;
4806 inst.instruction |= inst.operands[4].reg;
4812 inst.instruction |= inst.operands[0].imm << 6;
4813 inst.instruction |= inst.operands[1].imm;
4819 /* There is no IT instruction in ARM mode. We
4820 process it but do not generate code for it. */
4827 int base_reg = inst.operands[0].reg;
4828 int range = inst.operands[1].imm;
4830 inst.instruction |= base_reg << 16;
4831 inst.instruction |= range;
4833 if (inst.operands[1].writeback)
4834 inst.instruction |= LDM_TYPE_2_OR_3;
4836 if (inst.operands[0].writeback)
4838 inst.instruction |= WRITE_BACK;
4839 /* Check for unpredictable uses of writeback. */
4840 if (inst.instruction & LOAD_BIT)
4842 /* Not allowed in LDM type 2. */
4843 if ((inst.instruction & LDM_TYPE_2_OR_3)
4844 && ((range & (1 << REG_PC)) == 0))
4845 as_warn (_("writeback of base register is UNPREDICTABLE"));
4846 /* Only allowed if base reg not in list for other types. */
4847 else if (range & (1 << base_reg))
4848 as_warn (_("writeback of base register when in register list is UNPREDICTABLE"));
4852 /* Not allowed for type 2. */
4853 if (inst.instruction & LDM_TYPE_2_OR_3)
4854 as_warn (_("writeback of base register is UNPREDICTABLE"));
4855 /* Only allowed if base reg not in list, or first in list. */
4856 else if ((range & (1 << base_reg))
4857 && (range & ((1 << base_reg) - 1)))
4858 as_warn (_("if writeback register is in list, it must be the lowest reg in the list"));
4863 /* ARMv5TE load-consecutive (argument parse)
4872 constraint (inst.operands[0].reg % 2 != 0,
4873 _("first destination register must be even"));
4874 constraint (inst.operands[1].present
4875 && inst.operands[1].reg != inst.operands[0].reg + 1,
4876 _("can only load two consecutive registers"));
4877 constraint (inst.operands[0].reg == REG_LR, _("r14 not allowed here"));
4878 constraint (!inst.operands[2].isreg, _("'[' expected"));
4880 if (!inst.operands[1].present)
4881 inst.operands[1].reg = inst.operands[0].reg + 1;
4883 if (inst.instruction & LOAD_BIT)
4885 /* encode_arm_addr_mode_3 will diagnose overlap between the base
4886 register and the first register written; we have to diagnose
4887 overlap between the base and the second register written here. */
4889 if (inst.operands[2].reg == inst.operands[1].reg
4890 && (inst.operands[2].writeback || inst.operands[2].postind))
4891 as_warn (_("base register written back, and overlaps "
4892 "second destination register"));
4894 /* For an index-register load, the index register must not overlap the
4895 destination (even if not write-back). */
4896 else if (inst.operands[2].immisreg
4897 && ((unsigned) inst.operands[2].imm == inst.operands[0].reg
4898 || (unsigned) inst.operands[2].imm == inst.operands[1].reg))
4899 as_warn (_("index register overlaps destination register"));
4902 inst.instruction |= inst.operands[0].reg << 12;
4903 encode_arm_addr_mode_3 (2, /*is_t=*/FALSE);
4909 constraint (!inst.operands[1].isreg || !inst.operands[1].preind
4910 || inst.operands[1].postind || inst.operands[1].writeback
4911 || inst.operands[1].immisreg || inst.operands[1].shifted
4912 || inst.operands[1].negative
4913 /* This can arise if the programmer has written
4915 or if they have mistakenly used a register name as the last
4918 It is very difficult to distinguish between these two cases
4919 because "rX" might actually be a label. ie the register
4920 name has been occluded by a symbol of the same name. So we
4921 just generate a general 'bad addressing mode' type error
4922 message and leave it up to the programmer to discover the
4923 true cause and fix their mistake. */
4924 || (inst.operands[1].reg == REG_PC),
4927 constraint (inst.reloc.exp.X_op != O_constant
4928 || inst.reloc.exp.X_add_number != 0,
4929 _("offset must be zero in ARM encoding"));
4931 inst.instruction |= inst.operands[0].reg << 12;
4932 inst.instruction |= inst.operands[1].reg << 16;
4933 inst.reloc.type = BFD_RELOC_UNUSED;
4939 constraint (inst.operands[0].reg % 2 != 0,
4940 _("even register required"));
4941 constraint (inst.operands[1].present
4942 && inst.operands[1].reg != inst.operands[0].reg + 1,
4943 _("can only load two consecutive registers"));
4944 /* If op 1 were present and equal to PC, this function wouldn't
4945 have been called in the first place. */
4946 constraint (inst.operands[0].reg == REG_LR, _("r14 not allowed here"));
4948 inst.instruction |= inst.operands[0].reg << 12;
4949 inst.instruction |= inst.operands[2].reg << 16;
4955 inst.instruction |= inst.operands[0].reg << 12;
4956 if (!inst.operands[1].isreg)
4957 if (move_or_literal_pool (0, /*thumb_p=*/FALSE, /*mode_3=*/FALSE))
4959 encode_arm_addr_mode_2 (1, /*is_t=*/FALSE);
4965 /* ldrt/strt always use post-indexed addressing. Turn [Rn] into [Rn]! and
4967 if (inst.operands[1].preind)
4969 constraint (inst.reloc.exp.X_op != O_constant ||
4970 inst.reloc.exp.X_add_number != 0,
4971 _("this instruction requires a post-indexed address"));
4973 inst.operands[1].preind = 0;
4974 inst.operands[1].postind = 1;
4975 inst.operands[1].writeback = 1;
4977 inst.instruction |= inst.operands[0].reg << 12;
4978 encode_arm_addr_mode_2 (1, /*is_t=*/TRUE);
4981 /* Halfword and signed-byte load/store operations. */
4986 inst.instruction |= inst.operands[0].reg << 12;
4987 if (!inst.operands[1].isreg)
4988 if (move_or_literal_pool (0, /*thumb_p=*/FALSE, /*mode_3=*/TRUE))
4990 encode_arm_addr_mode_3 (1, /*is_t=*/FALSE);
4996 /* ldrt/strt always use post-indexed addressing. Turn [Rn] into [Rn]! and
4998 if (inst.operands[1].preind)
5000 constraint (inst.reloc.exp.X_op != O_constant ||
5001 inst.reloc.exp.X_add_number != 0,
5002 _("this instruction requires a post-indexed address"));
5004 inst.operands[1].preind = 0;
5005 inst.operands[1].postind = 1;
5006 inst.operands[1].writeback = 1;
5008 inst.instruction |= inst.operands[0].reg << 12;
5009 encode_arm_addr_mode_3 (1, /*is_t=*/TRUE);
5012 /* Co-processor register load/store.
5013 Format: <LDC|STC>{cond}[L] CP#,CRd,<address> */
5017 inst.instruction |= inst.operands[0].reg << 8;
5018 inst.instruction |= inst.operands[1].reg << 12;
5019 encode_arm_cp_address (2, TRUE, TRUE, 0);
5025 /* This restriction does not apply to mls (nor to mla in v6, but
5026 that's hard to detect at present). */
5027 if (inst.operands[0].reg == inst.operands[1].reg
5028 && !(inst.instruction & 0x00400000))
5029 as_tsktsk (_("rd and rm should be different in mla"));
5031 inst.instruction |= inst.operands[0].reg << 16;
5032 inst.instruction |= inst.operands[1].reg;
5033 inst.instruction |= inst.operands[2].reg << 8;
5034 inst.instruction |= inst.operands[3].reg << 12;
5041 inst.instruction |= inst.operands[0].reg << 12;
5042 encode_arm_shifter_operand (1);
5045 /* ARM V6T2 16-bit immediate register load: MOV[WT]{cond} Rd, #<imm16>. */
5049 inst.instruction |= inst.operands[0].reg << 12;
5050 /* The value is in two pieces: 0:11, 16:19. */
5051 inst.instruction |= (inst.operands[1].imm & 0x00000fff);
5052 inst.instruction |= (inst.operands[1].imm & 0x0000f000) << 4;
5058 /* mrs only accepts CPSR/SPSR/CPSR_all/SPSR_all. */
5059 constraint ((inst.operands[1].imm & (PSR_c|PSR_x|PSR_s|PSR_f))
5061 _("'CPSR' or 'SPSR' expected"));
5062 inst.instruction |= inst.operands[0].reg << 12;
5063 inst.instruction |= (inst.operands[1].imm & SPSR_BIT);
5066 /* Two possible forms:
5067 "{C|S}PSR_<field>, Rm",
5068 "{C|S}PSR_f, #expression". */
5073 inst.instruction |= inst.operands[0].imm;
5074 if (inst.operands[1].isreg)
5075 inst.instruction |= inst.operands[1].reg;
5078 inst.instruction |= INST_IMMEDIATE;
5079 inst.reloc.type = BFD_RELOC_ARM_IMMEDIATE;
5080 inst.reloc.pc_rel = 0;
5087 if (!inst.operands[2].present)
5088 inst.operands[2].reg = inst.operands[0].reg;
5089 inst.instruction |= inst.operands[0].reg << 16;
5090 inst.instruction |= inst.operands[1].reg;
5091 inst.instruction |= inst.operands[2].reg << 8;
5093 if (inst.operands[0].reg == inst.operands[1].reg)
5094 as_tsktsk (_("rd and rm should be different in mul"));
5097 /* Long Multiply Parser
5098 UMULL RdLo, RdHi, Rm, Rs
5099 SMULL RdLo, RdHi, Rm, Rs
5100 UMLAL RdLo, RdHi, Rm, Rs
5101 SMLAL RdLo, RdHi, Rm, Rs. */
5106 inst.instruction |= inst.operands[0].reg << 12;
5107 inst.instruction |= inst.operands[1].reg << 16;
5108 inst.instruction |= inst.operands[2].reg;
5109 inst.instruction |= inst.operands[3].reg << 8;
5111 /* rdhi, rdlo and rm must all be different. */
5112 if (inst.operands[0].reg == inst.operands[1].reg
5113 || inst.operands[0].reg == inst.operands[2].reg
5114 || inst.operands[1].reg == inst.operands[2].reg)
5115 as_tsktsk (_("rdhi, rdlo and rm must all be different"));
5121 if (inst.operands[0].present)
5123 /* Architectural NOP hints are CPSR sets with no bits selected. */
5124 inst.instruction &= 0xf0000000;
5125 inst.instruction |= 0x0320f000 + inst.operands[0].imm;
5129 /* ARM V6 Pack Halfword Bottom Top instruction (argument parse).
5130 PKHBT {<cond>} <Rd>, <Rn>, <Rm> {, LSL #<shift_imm>}
5131 Condition defaults to COND_ALWAYS.
5132 Error if Rd, Rn or Rm are R15. */
5137 inst.instruction |= inst.operands[0].reg << 12;
5138 inst.instruction |= inst.operands[1].reg << 16;
5139 inst.instruction |= inst.operands[2].reg;
5140 if (inst.operands[3].present)
5141 encode_arm_shift (3);
5144 /* ARM V6 PKHTB (Argument Parse). */
5149 if (!inst.operands[3].present)
5151 /* If the shift specifier is omitted, turn the instruction
5152 into pkhbt rd, rm, rn. */
5153 inst.instruction &= 0xfff00010;
5154 inst.instruction |= inst.operands[0].reg << 12;
5155 inst.instruction |= inst.operands[1].reg;
5156 inst.instruction |= inst.operands[2].reg << 16;
5160 inst.instruction |= inst.operands[0].reg << 12;
5161 inst.instruction |= inst.operands[1].reg << 16;
5162 inst.instruction |= inst.operands[2].reg;
5163 encode_arm_shift (3);
5167 /* ARMv5TE: Preload-Cache
5171 Syntactically, like LDR with B=1, W=0, L=1. */
5176 constraint (!inst.operands[0].isreg,
5177 _("'[' expected after PLD mnemonic"));
5178 constraint (inst.operands[0].postind,
5179 _("post-indexed expression used in preload instruction"));
5180 constraint (inst.operands[0].writeback,
5181 _("writeback used in preload instruction"));
5182 constraint (!inst.operands[0].preind,
5183 _("unindexed addressing used in preload instruction"));
5184 encode_arm_addr_mode_2 (0, /*is_t=*/FALSE);
5190 inst.operands[1] = inst.operands[0];
5191 memset (&inst.operands[0], 0, sizeof inst.operands[0]);
5192 inst.operands[0].isreg = 1;
5193 inst.operands[0].writeback = 1;
5194 inst.operands[0].reg = REG_SP;
5198 /* ARM V6 RFE (Return from Exception) loads the PC and CPSR from the
5199 word at the specified address and the following word
5201 Unconditionally executed.
5202 Error if Rn is R15. */
5207 inst.instruction |= inst.operands[0].reg << 16;
5208 if (inst.operands[0].writeback)
5209 inst.instruction |= WRITE_BACK;
5212 /* ARM V6 ssat (argument parse). */
5217 inst.instruction |= inst.operands[0].reg << 12;
5218 inst.instruction |= (inst.operands[1].imm - 1) << 16;
5219 inst.instruction |= inst.operands[2].reg;
5221 if (inst.operands[3].present)
5222 encode_arm_shift (3);
5225 /* ARM V6 usat (argument parse). */
5230 inst.instruction |= inst.operands[0].reg << 12;
5231 inst.instruction |= inst.operands[1].imm << 16;
5232 inst.instruction |= inst.operands[2].reg;
5234 if (inst.operands[3].present)
5235 encode_arm_shift (3);
5238 /* ARM V6 ssat16 (argument parse). */
5243 inst.instruction |= inst.operands[0].reg << 12;
5244 inst.instruction |= ((inst.operands[1].imm - 1) << 16);
5245 inst.instruction |= inst.operands[2].reg;
5251 inst.instruction |= inst.operands[0].reg << 12;
5252 inst.instruction |= inst.operands[1].imm << 16;
5253 inst.instruction |= inst.operands[2].reg;
5256 /* ARM V6 SETEND (argument parse). Sets the E bit in the CPSR while
5257 preserving the other bits.
5259 setend <endian_specifier>, where <endian_specifier> is either
5265 if (inst.operands[0].imm)
5266 inst.instruction |= 0x200;
5272 unsigned int Rm = (inst.operands[1].present
5273 ? inst.operands[1].reg
5274 : inst.operands[0].reg);
5276 inst.instruction |= inst.operands[0].reg << 12;
5277 inst.instruction |= Rm;
5278 if (inst.operands[2].isreg) /* Rd, {Rm,} Rs */
5280 inst.instruction |= inst.operands[2].reg << 8;
5281 inst.instruction |= SHIFT_BY_REG;
5284 inst.reloc.type = BFD_RELOC_ARM_SHIFT_IMM;
5290 inst.reloc.type = BFD_RELOC_ARM_SMC;
5291 inst.reloc.pc_rel = 0;
5297 inst.reloc.type = BFD_RELOC_ARM_SWI;
5298 inst.reloc.pc_rel = 0;
5301 /* ARM V5E (El Segundo) signed-multiply-accumulate (argument parse)
5302 SMLAxy{cond} Rd,Rm,Rs,Rn
5303 SMLAWy{cond} Rd,Rm,Rs,Rn
5304 Error if any register is R15. */
5309 inst.instruction |= inst.operands[0].reg << 16;
5310 inst.instruction |= inst.operands[1].reg;
5311 inst.instruction |= inst.operands[2].reg << 8;
5312 inst.instruction |= inst.operands[3].reg << 12;
5315 /* ARM V5E (El Segundo) signed-multiply-accumulate-long (argument parse)
5316 SMLALxy{cond} Rdlo,Rdhi,Rm,Rs
5317 Error if any register is R15.
5318 Warning if Rdlo == Rdhi. */
5323 inst.instruction |= inst.operands[0].reg << 12;
5324 inst.instruction |= inst.operands[1].reg << 16;
5325 inst.instruction |= inst.operands[2].reg;
5326 inst.instruction |= inst.operands[3].reg << 8;
5328 if (inst.operands[0].reg == inst.operands[1].reg)
5329 as_tsktsk (_("rdhi and rdlo must be different"));
5332 /* ARM V5E (El Segundo) signed-multiply (argument parse)
5333 SMULxy{cond} Rd,Rm,Rs
5334 Error if any register is R15. */
5339 inst.instruction |= inst.operands[0].reg << 16;
5340 inst.instruction |= inst.operands[1].reg;
5341 inst.instruction |= inst.operands[2].reg << 8;
5344 /* ARM V6 srs (argument parse). */
5349 inst.instruction |= inst.operands[0].imm;
5350 if (inst.operands[0].writeback)
5351 inst.instruction |= WRITE_BACK;
5354 /* ARM V6 strex (argument parse). */
5359 constraint (!inst.operands[2].isreg || !inst.operands[2].preind
5360 || inst.operands[2].postind || inst.operands[2].writeback
5361 || inst.operands[2].immisreg || inst.operands[2].shifted
5362 || inst.operands[2].negative
5363 /* See comment in do_ldrex(). */
5364 || (inst.operands[2].reg == REG_PC),
5367 constraint (inst.operands[0].reg == inst.operands[1].reg
5368 || inst.operands[0].reg == inst.operands[2].reg, BAD_OVERLAP);
5370 constraint (inst.reloc.exp.X_op != O_constant
5371 || inst.reloc.exp.X_add_number != 0,
5372 _("offset must be zero in ARM encoding"));
5374 inst.instruction |= inst.operands[0].reg << 12;
5375 inst.instruction |= inst.operands[1].reg;
5376 inst.instruction |= inst.operands[2].reg << 16;
5377 inst.reloc.type = BFD_RELOC_UNUSED;
5383 constraint (inst.operands[1].reg % 2 != 0,
5384 _("even register required"));
5385 constraint (inst.operands[2].present
5386 && inst.operands[2].reg != inst.operands[1].reg + 1,
5387 _("can only store two consecutive registers"));
5388 /* If op 2 were present and equal to PC, this function wouldn't
5389 have been called in the first place. */
5390 constraint (inst.operands[1].reg == REG_LR, _("r14 not allowed here"));
5392 constraint (inst.operands[0].reg == inst.operands[1].reg
5393 || inst.operands[0].reg == inst.operands[1].reg + 1
5394 || inst.operands[0].reg == inst.operands[3].reg,
5397 inst.instruction |= inst.operands[0].reg << 12;
5398 inst.instruction |= inst.operands[1].reg;
5399 inst.instruction |= inst.operands[3].reg << 16;
5402 /* ARM V6 SXTAH extracts a 16-bit value from a register, sign
5403 extends it to 32-bits, and adds the result to a value in another
5404 register. You can specify a rotation by 0, 8, 16, or 24 bits
5405 before extracting the 16-bit value.
5406 SXTAH{<cond>} <Rd>, <Rn>, <Rm>{, <rotation>}
5407 Condition defaults to COND_ALWAYS.
5408 Error if any register uses R15. */
5413 inst.instruction |= inst.operands[0].reg << 12;
5414 inst.instruction |= inst.operands[1].reg << 16;
5415 inst.instruction |= inst.operands[2].reg;
5416 inst.instruction |= inst.operands[3].imm << 10;
5421 SXTH {<cond>} <Rd>, <Rm>{, <rotation>}
5422 Condition defaults to COND_ALWAYS.
5423 Error if any register uses R15. */
5428 inst.instruction |= inst.operands[0].reg << 12;
5429 inst.instruction |= inst.operands[1].reg;
5430 inst.instruction |= inst.operands[2].imm << 10;
5433 /* VFP instructions. In a logical order: SP variant first, monad
5434 before dyad, arithmetic then move then load/store. */
5437 do_vfp_sp_monadic (void)
5439 encode_arm_vfp_sp_reg (inst.operands[0].reg, VFP_REG_Sd);
5440 encode_arm_vfp_sp_reg (inst.operands[1].reg, VFP_REG_Sm);
5444 do_vfp_sp_dyadic (void)
5446 encode_arm_vfp_sp_reg (inst.operands[0].reg, VFP_REG_Sd);
5447 encode_arm_vfp_sp_reg (inst.operands[1].reg, VFP_REG_Sn);
5448 encode_arm_vfp_sp_reg (inst.operands[2].reg, VFP_REG_Sm);
5452 do_vfp_sp_compare_z (void)
5454 encode_arm_vfp_sp_reg (inst.operands[0].reg, VFP_REG_Sd);
5458 do_vfp_dp_sp_cvt (void)
5460 inst.instruction |= inst.operands[0].reg << 12;
5461 encode_arm_vfp_sp_reg (inst.operands[1].reg, VFP_REG_Sm);
5465 do_vfp_sp_dp_cvt (void)
5467 encode_arm_vfp_sp_reg (inst.operands[0].reg, VFP_REG_Sd);
5468 inst.instruction |= inst.operands[1].reg;
5472 do_vfp_reg_from_sp (void)
5474 inst.instruction |= inst.operands[0].reg << 12;
5475 encode_arm_vfp_sp_reg (inst.operands[1].reg, VFP_REG_Sn);
5479 do_vfp_reg2_from_sp2 (void)
5481 constraint (inst.operands[2].imm != 2,
5482 _("only two consecutive VFP SP registers allowed here"));
5483 inst.instruction |= inst.operands[0].reg << 12;
5484 inst.instruction |= inst.operands[1].reg << 16;
5485 encode_arm_vfp_sp_reg (inst.operands[2].reg, VFP_REG_Sm);
5489 do_vfp_sp_from_reg (void)
5491 encode_arm_vfp_sp_reg (inst.operands[0].reg, VFP_REG_Sn);
5492 inst.instruction |= inst.operands[1].reg << 12;
5496 do_vfp_sp2_from_reg2 (void)
5498 constraint (inst.operands[0].imm != 2,
5499 _("only two consecutive VFP SP registers allowed here"));
5500 encode_arm_vfp_sp_reg (inst.operands[0].reg, VFP_REG_Sm);
5501 inst.instruction |= inst.operands[1].reg << 12;
5502 inst.instruction |= inst.operands[2].reg << 16;
5506 do_vfp_sp_ldst (void)
5508 encode_arm_vfp_sp_reg (inst.operands[0].reg, VFP_REG_Sd);
5509 encode_arm_cp_address (1, FALSE, TRUE, 0);
5513 do_vfp_dp_ldst (void)
5515 inst.instruction |= inst.operands[0].reg << 12;
5516 encode_arm_cp_address (1, FALSE, TRUE, 0);
5521 vfp_sp_ldstm (enum vfp_ldstm_type ldstm_type)
5523 if (inst.operands[0].writeback)
5524 inst.instruction |= WRITE_BACK;
5526 constraint (ldstm_type != VFP_LDSTMIA,
5527 _("this addressing mode requires base-register writeback"));
5528 inst.instruction |= inst.operands[0].reg << 16;
5529 encode_arm_vfp_sp_reg (inst.operands[1].reg, VFP_REG_Sd);
5530 inst.instruction |= inst.operands[1].imm;
5534 vfp_dp_ldstm (enum vfp_ldstm_type ldstm_type)
5538 if (inst.operands[0].writeback)
5539 inst.instruction |= WRITE_BACK;
5541 constraint (ldstm_type != VFP_LDSTMIA && ldstm_type != VFP_LDSTMIAX,
5542 _("this addressing mode requires base-register writeback"));
5544 inst.instruction |= inst.operands[0].reg << 16;
5545 inst.instruction |= inst.operands[1].reg << 12;
5547 count = inst.operands[1].imm << 1;
5548 if (ldstm_type == VFP_LDSTMIAX || ldstm_type == VFP_LDSTMDBX)
5551 inst.instruction |= count;
5555 do_vfp_sp_ldstmia (void)
5557 vfp_sp_ldstm (VFP_LDSTMIA);
5561 do_vfp_sp_ldstmdb (void)
5563 vfp_sp_ldstm (VFP_LDSTMDB);
5567 do_vfp_dp_ldstmia (void)
5569 vfp_dp_ldstm (VFP_LDSTMIA);
5573 do_vfp_dp_ldstmdb (void)
5575 vfp_dp_ldstm (VFP_LDSTMDB);
5579 do_vfp_xp_ldstmia (void)
5581 vfp_dp_ldstm (VFP_LDSTMIAX);
5585 do_vfp_xp_ldstmdb (void)
5587 vfp_dp_ldstm (VFP_LDSTMDBX);
5590 /* FPA instructions. Also in a logical order. */
5595 inst.instruction |= inst.operands[0].reg << 16;
5596 inst.instruction |= inst.operands[1].reg;
5600 do_fpa_ldmstm (void)
5602 inst.instruction |= inst.operands[0].reg << 12;
5603 switch (inst.operands[1].imm)
5605 case 1: inst.instruction |= CP_T_X; break;
5606 case 2: inst.instruction |= CP_T_Y; break;
5607 case 3: inst.instruction |= CP_T_Y | CP_T_X; break;
5612 if (inst.instruction & (PRE_INDEX | INDEX_UP))
5614 /* The instruction specified "ea" or "fd", so we can only accept
5615 [Rn]{!}. The instruction does not really support stacking or
5616 unstacking, so we have to emulate these by setting appropriate
5617 bits and offsets. */
5618 constraint (inst.reloc.exp.X_op != O_constant
5619 || inst.reloc.exp.X_add_number != 0,
5620 _("this instruction does not support indexing"));
5622 if ((inst.instruction & PRE_INDEX) || inst.operands[2].writeback)
5623 inst.reloc.exp.X_add_number = 12 * inst.operands[1].imm;
5625 if (!(inst.instruction & INDEX_UP))
5626 inst.reloc.exp.X_add_number = -inst.reloc.exp.X_add_number;
5628 if (!(inst.instruction & PRE_INDEX) && inst.operands[2].writeback)
5630 inst.operands[2].preind = 0;
5631 inst.operands[2].postind = 1;
5635 encode_arm_cp_address (2, TRUE, TRUE, 0);
5638 /* iWMMXt instructions: strictly in alphabetical order. */
5641 do_iwmmxt_tandorc (void)
5643 constraint (inst.operands[0].reg != REG_PC, _("only r15 allowed here"));
5647 do_iwmmxt_textrc (void)
5649 inst.instruction |= inst.operands[0].reg << 12;
5650 inst.instruction |= inst.operands[1].imm;
5654 do_iwmmxt_textrm (void)
5656 inst.instruction |= inst.operands[0].reg << 12;
5657 inst.instruction |= inst.operands[1].reg << 16;
5658 inst.instruction |= inst.operands[2].imm;
5662 do_iwmmxt_tinsr (void)
5664 inst.instruction |= inst.operands[0].reg << 16;
5665 inst.instruction |= inst.operands[1].reg << 12;
5666 inst.instruction |= inst.operands[2].imm;
5670 do_iwmmxt_tmia (void)
5672 inst.instruction |= inst.operands[0].reg << 5;
5673 inst.instruction |= inst.operands[1].reg;
5674 inst.instruction |= inst.operands[2].reg << 12;
5678 do_iwmmxt_waligni (void)
5680 inst.instruction |= inst.operands[0].reg << 12;
5681 inst.instruction |= inst.operands[1].reg << 16;
5682 inst.instruction |= inst.operands[2].reg;
5683 inst.instruction |= inst.operands[3].imm << 20;
5687 do_iwmmxt_wmov (void)
5689 /* WMOV rD, rN is an alias for WOR rD, rN, rN. */
5690 inst.instruction |= inst.operands[0].reg << 12;
5691 inst.instruction |= inst.operands[1].reg << 16;
5692 inst.instruction |= inst.operands[1].reg;
5696 do_iwmmxt_wldstbh (void)
5699 inst.instruction |= inst.operands[0].reg << 12;
5700 inst.reloc.exp.X_add_number *= 4;
5702 reloc = BFD_RELOC_ARM_T32_CP_OFF_IMM_S2;
5704 reloc = BFD_RELOC_ARM_CP_OFF_IMM_S2;
5705 encode_arm_cp_address (1, TRUE, FALSE, reloc);
5709 do_iwmmxt_wldstw (void)
5711 /* RIWR_RIWC clears .isreg for a control register. */
5712 if (!inst.operands[0].isreg)
5714 constraint (inst.cond != COND_ALWAYS, BAD_COND);
5715 inst.instruction |= 0xf0000000;
5718 inst.instruction |= inst.operands[0].reg << 12;
5719 encode_arm_cp_address (1, TRUE, TRUE, 0);
5723 do_iwmmxt_wldstd (void)
5725 inst.instruction |= inst.operands[0].reg << 12;
5726 encode_arm_cp_address (1, TRUE, FALSE, 0);
5730 do_iwmmxt_wshufh (void)
5732 inst.instruction |= inst.operands[0].reg << 12;
5733 inst.instruction |= inst.operands[1].reg << 16;
5734 inst.instruction |= ((inst.operands[2].imm & 0xf0) << 16);
5735 inst.instruction |= (inst.operands[2].imm & 0x0f);
5739 do_iwmmxt_wzero (void)
5741 /* WZERO reg is an alias for WANDN reg, reg, reg. */
5742 inst.instruction |= inst.operands[0].reg;
5743 inst.instruction |= inst.operands[0].reg << 12;
5744 inst.instruction |= inst.operands[0].reg << 16;
5747 /* Cirrus Maverick instructions. Simple 2-, 3-, and 4-register
5748 operations first, then control, shift, and load/store. */
5750 /* Insns like "foo X,Y,Z". */
5753 do_mav_triple (void)
5755 inst.instruction |= inst.operands[0].reg << 16;
5756 inst.instruction |= inst.operands[1].reg;
5757 inst.instruction |= inst.operands[2].reg << 12;
5760 /* Insns like "foo W,X,Y,Z".
5761 where W=MVAX[0:3] and X,Y,Z=MVFX[0:15]. */
5766 inst.instruction |= inst.operands[0].reg << 5;
5767 inst.instruction |= inst.operands[1].reg << 12;
5768 inst.instruction |= inst.operands[2].reg << 16;
5769 inst.instruction |= inst.operands[3].reg;
5772 /* cfmvsc32<cond> DSPSC,MVDX[15:0]. */
5776 inst.instruction |= inst.operands[1].reg << 12;
5779 /* Maverick shift immediate instructions.
5780 cfsh32<cond> MVFX[15:0],MVFX[15:0],Shift[6:0].
5781 cfsh64<cond> MVDX[15:0],MVDX[15:0],Shift[6:0]. */
5786 int imm = inst.operands[2].imm;
5788 inst.instruction |= inst.operands[0].reg << 12;
5789 inst.instruction |= inst.operands[1].reg << 16;
5791 /* Bits 0-3 of the insn should have bits 0-3 of the immediate.
5792 Bits 5-7 of the insn should have bits 4-6 of the immediate.
5793 Bit 4 should be 0. */
5794 imm = (imm & 0xf) | ((imm & 0x70) << 1);
5796 inst.instruction |= imm;
5799 /* XScale instructions. Also sorted arithmetic before move. */
5801 /* Xscale multiply-accumulate (argument parse)
5804 MIAxycc acc0,Rm,Rs. */
5809 inst.instruction |= inst.operands[1].reg;
5810 inst.instruction |= inst.operands[2].reg << 12;
5813 /* Xscale move-accumulator-register (argument parse)
5815 MARcc acc0,RdLo,RdHi. */
5820 inst.instruction |= inst.operands[1].reg << 12;
5821 inst.instruction |= inst.operands[2].reg << 16;
5824 /* Xscale move-register-accumulator (argument parse)
5826 MRAcc RdLo,RdHi,acc0. */
5831 constraint (inst.operands[0].reg == inst.operands[1].reg, BAD_OVERLAP);
5832 inst.instruction |= inst.operands[0].reg << 12;
5833 inst.instruction |= inst.operands[1].reg << 16;
5836 /* Encoding functions relevant only to Thumb. */
5838 /* inst.operands[i] is a shifted-register operand; encode
5839 it into inst.instruction in the format used by Thumb32. */
5842 encode_thumb32_shifted_operand (int i)
5844 unsigned int value = inst.reloc.exp.X_add_number;
5845 unsigned int shift = inst.operands[i].shift_kind;
5847 constraint (inst.operands[i].immisreg,
5848 _("shift by register not allowed in thumb mode"));
5849 inst.instruction |= inst.operands[i].reg;
5850 if (shift == SHIFT_RRX)
5851 inst.instruction |= SHIFT_ROR << 4;
5854 constraint (inst.reloc.exp.X_op != O_constant,
5855 _("expression too complex"));
5857 constraint (value > 32
5858 || (value == 32 && (shift == SHIFT_LSL
5859 || shift == SHIFT_ROR)),
5860 _("shift expression is too large"));
5864 else if (value == 32)
5867 inst.instruction |= shift << 4;
5868 inst.instruction |= (value & 0x1c) << 10;
5869 inst.instruction |= (value & 0x03) << 6;
5874 /* inst.operands[i] was set up by parse_address. Encode it into a
5875 Thumb32 format load or store instruction. Reject forms that cannot
5876 be used with such instructions. If is_t is true, reject forms that
5877 cannot be used with a T instruction; if is_d is true, reject forms
5878 that cannot be used with a D instruction. */
5881 encode_thumb32_addr_mode (int i, bfd_boolean is_t, bfd_boolean is_d)
5883 bfd_boolean is_pc = (inst.operands[i].reg == REG_PC);
5885 constraint (!inst.operands[i].isreg,
5886 _("Thumb does not support the ldr =N pseudo-operation"));
5888 inst.instruction |= inst.operands[i].reg << 16;
5889 if (inst.operands[i].immisreg)
5891 constraint (is_pc, _("cannot use register index with PC-relative addressing"));
5892 constraint (is_t || is_d, _("cannot use register index with this instruction"));
5893 constraint (inst.operands[i].negative,
5894 _("Thumb does not support negative register indexing"));
5895 constraint (inst.operands[i].postind,
5896 _("Thumb does not support register post-indexing"));
5897 constraint (inst.operands[i].writeback,
5898 _("Thumb does not support register indexing with writeback"));
5899 constraint (inst.operands[i].shifted && inst.operands[i].shift_kind != SHIFT_LSL,
5900 _("Thumb supports only LSL in shifted register indexing"));
5902 inst.instruction |= inst.operands[i].imm;
5903 if (inst.operands[i].shifted)
5905 constraint (inst.reloc.exp.X_op != O_constant,
5906 _("expression too complex"));
5907 constraint (inst.reloc.exp.X_add_number < 0
5908 || inst.reloc.exp.X_add_number > 3,
5909 _("shift out of range"));
5910 inst.instruction |= inst.reloc.exp.X_add_number << 4;
5912 inst.reloc.type = BFD_RELOC_UNUSED;
5914 else if (inst.operands[i].preind)
5916 constraint (is_pc && inst.operands[i].writeback,
5917 _("cannot use writeback with PC-relative addressing"));
5918 constraint (is_t && inst.operands[i].writeback,
5919 _("cannot use writeback with this instruction"));
5923 inst.instruction |= 0x01000000;
5924 if (inst.operands[i].writeback)
5925 inst.instruction |= 0x00200000;
5929 inst.instruction |= 0x00000c00;
5930 if (inst.operands[i].writeback)
5931 inst.instruction |= 0x00000100;
5933 inst.reloc.type = BFD_RELOC_ARM_T32_OFFSET_IMM;
5935 else if (inst.operands[i].postind)
5937 assert (inst.operands[i].writeback);
5938 constraint (is_pc, _("cannot use post-indexing with PC-relative addressing"));
5939 constraint (is_t, _("cannot use post-indexing with this instruction"));
5942 inst.instruction |= 0x00200000;
5944 inst.instruction |= 0x00000900;
5945 inst.reloc.type = BFD_RELOC_ARM_T32_OFFSET_IMM;
5947 else /* unindexed - only for coprocessor */
5948 inst.error = _("instruction does not accept unindexed addressing");
5951 /* Table of Thumb instructions which exist in both 16- and 32-bit
5952 encodings (the latter only in post-V6T2 cores). The index is the
5953 value used in the insns table below. When there is more than one
5954 possible 16-bit encoding for the instruction, this table always
5956 Also contains several pseudo-instructions used during relaxation. */
5957 #define T16_32_TAB \
5958 X(adc, 4140, eb400000), \
5959 X(adcs, 4140, eb500000), \
5960 X(add, 1c00, eb000000), \
5961 X(adds, 1c00, eb100000), \
5962 X(addi, 0000, f1000000), \
5963 X(addis, 0000, f1100000), \
5964 X(add_pc,000f, f20f0000), \
5965 X(add_sp,000d, f10d0000), \
5966 X(adr, 000f, f20f0000), \
5967 X(and, 4000, ea000000), \
5968 X(ands, 4000, ea100000), \
5969 X(asr, 1000, fa40f000), \
5970 X(asrs, 1000, fa50f000), \
5971 X(b, e000, f000b000), \
5972 X(bcond, d000, f0008000), \
5973 X(bic, 4380, ea200000), \
5974 X(bics, 4380, ea300000), \
5975 X(cmn, 42c0, eb100f00), \
5976 X(cmp, 2800, ebb00f00), \
5977 X(cpsie, b660, f3af8400), \
5978 X(cpsid, b670, f3af8600), \
5979 X(cpy, 4600, ea4f0000), \
5980 X(dec_sp,80dd, f1bd0d00), \
5981 X(eor, 4040, ea800000), \
5982 X(eors, 4040, ea900000), \
5983 X(inc_sp,00dd, f10d0d00), \
5984 X(ldmia, c800, e8900000), \
5985 X(ldr, 6800, f8500000), \
5986 X(ldrb, 7800, f8100000), \
5987 X(ldrh, 8800, f8300000), \
5988 X(ldrsb, 5600, f9100000), \
5989 X(ldrsh, 5e00, f9300000), \
5990 X(ldr_pc,4800, f85f0000), \
5991 X(ldr_pc2,4800, f85f0000), \
5992 X(ldr_sp,9800, f85d0000), \
5993 X(lsl, 0000, fa00f000), \
5994 X(lsls, 0000, fa10f000), \
5995 X(lsr, 0800, fa20f000), \
5996 X(lsrs, 0800, fa30f000), \
5997 X(mov, 2000, ea4f0000), \
5998 X(movs, 2000, ea5f0000), \
5999 X(mul, 4340, fb00f000), \
6000 X(muls, 4340, ffffffff), /* no 32b muls */ \
6001 X(mvn, 43c0, ea6f0000), \
6002 X(mvns, 43c0, ea7f0000), \
6003 X(neg, 4240, f1c00000), /* rsb #0 */ \
6004 X(negs, 4240, f1d00000), /* rsbs #0 */ \
6005 X(orr, 4300, ea400000), \
6006 X(orrs, 4300, ea500000), \
6007 X(pop, bc00, e8bd0000), /* ldmia sp!,... */ \
6008 X(push, b400, e92d0000), /* stmdb sp!,... */ \
6009 X(rev, ba00, fa90f080), \
6010 X(rev16, ba40, fa90f090), \
6011 X(revsh, bac0, fa90f0b0), \
6012 X(ror, 41c0, fa60f000), \
6013 X(rors, 41c0, fa70f000), \
6014 X(sbc, 4180, eb600000), \
6015 X(sbcs, 4180, eb700000), \
6016 X(stmia, c000, e8800000), \
6017 X(str, 6000, f8400000), \
6018 X(strb, 7000, f8000000), \
6019 X(strh, 8000, f8200000), \
6020 X(str_sp,9000, f84d0000), \
6021 X(sub, 1e00, eba00000), \
6022 X(subs, 1e00, ebb00000), \
6023 X(subi, 8000, f1a00000), \
6024 X(subis, 8000, f1b00000), \
6025 X(sxtb, b240, fa4ff080), \
6026 X(sxth, b200, fa0ff080), \
6027 X(tst, 4200, ea100f00), \
6028 X(uxtb, b2c0, fa5ff080), \
6029 X(uxth, b280, fa1ff080), \
6030 X(nop, bf00, f3af8000), \
6031 X(yield, bf10, f3af8001), \
6032 X(wfe, bf20, f3af8002), \
6033 X(wfi, bf30, f3af8003), \
6034 X(sev, bf40, f3af9004), /* typo, 8004? */
6036 /* To catch errors in encoding functions, the codes are all offset by
6037 0xF800, putting them in one of the 32-bit prefix ranges, ergo undefined
6038 as 16-bit instructions. */
6039 #define X(a,b,c) T_MNEM_##a
6040 enum t16_32_codes { T16_32_OFFSET = 0xF7FF, T16_32_TAB };
6043 #define X(a,b,c) 0x##b
6044 static const unsigned short thumb_op16[] = { T16_32_TAB };
6045 #define THUMB_OP16(n) (thumb_op16[(n) - (T16_32_OFFSET + 1)])
6048 #define X(a,b,c) 0x##c
6049 static const unsigned int thumb_op32[] = { T16_32_TAB };
6050 #define THUMB_OP32(n) (thumb_op32[(n) - (T16_32_OFFSET + 1)])
6051 #define THUMB_SETS_FLAGS(n) (THUMB_OP32 (n) & 0x00100000)
6055 /* Thumb instruction encoders, in alphabetical order. */
6059 do_t_add_sub_w (void)
6063 Rd = inst.operands[0].reg;
6064 Rn = inst.operands[1].reg;
6066 constraint (Rd == 15, _("PC not allowed as destination"));
6067 inst.instruction |= (Rn << 16) | (Rd << 8);
6068 inst.reloc.type = BFD_RELOC_ARM_T32_IMM12;
6071 /* Parse an add or subtract instruction. We get here with inst.instruction
6072 equalling any of THUMB_OPCODE_add, adds, sub, or subs. */
6079 Rd = inst.operands[0].reg;
6080 Rs = (inst.operands[1].present
6081 ? inst.operands[1].reg /* Rd, Rs, foo */
6082 : inst.operands[0].reg); /* Rd, foo -> Rd, Rd, foo */
6090 flags = (inst.instruction == T_MNEM_adds
6091 || inst.instruction == T_MNEM_subs);
6093 narrow = (current_it_mask == 0);
6095 narrow = (current_it_mask != 0);
6096 if (!inst.operands[2].isreg)
6099 if (inst.size_req != 4)
6103 add = (inst.instruction == T_MNEM_add
6104 || inst.instruction == T_MNEM_adds);
6105 /* Attempt to use a narrow opcode, with relaxation if
6107 if (Rd == REG_SP && Rs == REG_SP && !flags)
6108 opcode = add ? T_MNEM_inc_sp : T_MNEM_dec_sp;
6109 else if (Rd <= 7 && Rs == REG_SP && add && !flags)
6110 opcode = T_MNEM_add_sp;
6111 else if (Rd <= 7 && Rs == REG_PC && add && !flags)
6112 opcode = T_MNEM_add_pc;
6113 else if (Rd <= 7 && Rs <= 7 && narrow)
6116 opcode = add ? T_MNEM_addis : T_MNEM_subis;
6118 opcode = add ? T_MNEM_addi : T_MNEM_subi;
6122 inst.instruction = THUMB_OP16(opcode);
6123 inst.instruction |= (Rd << 4) | Rs;
6124 inst.reloc.type = BFD_RELOC_ARM_THUMB_ADD;
6125 if (inst.size_req != 2)
6126 inst.relax = opcode;
6129 constraint (inst.size_req == 2, BAD_HIREG);
6131 if (inst.size_req == 4
6132 || (inst.size_req != 2 && !opcode))
6134 /* ??? Convert large immediates to addw/subw. */
6135 inst.instruction = THUMB_OP32 (inst.instruction);
6136 inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
6137 inst.instruction |= inst.operands[0].reg << 8;
6138 inst.instruction |= inst.operands[1].reg << 16;
6139 inst.reloc.type = BFD_RELOC_ARM_T32_IMMEDIATE;
6144 Rn = inst.operands[2].reg;
6145 /* See if we can do this with a 16-bit instruction. */
6146 if (!inst.operands[2].shifted && inst.size_req != 4)
6148 if (Rd > 7 || Rs > 7 || Rn > 7)
6153 inst.instruction = ((inst.instruction == T_MNEM_adds
6154 || inst.instruction == T_MNEM_add)
6157 inst.instruction |= Rd | (Rs << 3) | (Rn << 6);
6161 if (inst.instruction == T_MNEM_add)
6165 inst.instruction = T_OPCODE_ADD_HI;
6166 inst.instruction |= (Rd & 8) << 4;
6167 inst.instruction |= (Rd & 7);
6168 inst.instruction |= Rn << 3;
6171 /* ... because addition is commutative! */
6174 inst.instruction = T_OPCODE_ADD_HI;
6175 inst.instruction |= (Rd & 8) << 4;
6176 inst.instruction |= (Rd & 7);
6177 inst.instruction |= Rs << 3;
6182 /* If we get here, it can't be done in 16 bits. */
6183 constraint (inst.operands[2].shifted && inst.operands[2].immisreg,
6184 _("shift must be constant"));
6185 inst.instruction = THUMB_OP32 (inst.instruction);
6186 inst.instruction |= Rd << 8;
6187 inst.instruction |= Rs << 16;
6188 encode_thumb32_shifted_operand (2);
6193 constraint (inst.instruction == T_MNEM_adds
6194 || inst.instruction == T_MNEM_subs,
6197 if (!inst.operands[2].isreg) /* Rd, Rs, #imm */
6199 constraint ((Rd > 7 && (Rd != REG_SP || Rs != REG_SP))
6200 || (Rs > 7 && Rs != REG_SP && Rs != REG_PC),
6203 inst.instruction = (inst.instruction == T_MNEM_add
6205 inst.instruction |= (Rd << 4) | Rs;
6206 inst.reloc.type = BFD_RELOC_ARM_THUMB_ADD;
6210 Rn = inst.operands[2].reg;
6211 constraint (inst.operands[2].shifted, _("unshifted register required"));
6213 /* We now have Rd, Rs, and Rn set to registers. */
6214 if (Rd > 7 || Rs > 7 || Rn > 7)
6216 /* Can't do this for SUB. */
6217 constraint (inst.instruction == T_MNEM_sub, BAD_HIREG);
6218 inst.instruction = T_OPCODE_ADD_HI;
6219 inst.instruction |= (Rd & 8) << 4;
6220 inst.instruction |= (Rd & 7);
6222 inst.instruction |= Rn << 3;
6224 inst.instruction |= Rs << 3;
6226 constraint (1, _("dest must overlap one source register"));
6230 inst.instruction = (inst.instruction == T_MNEM_add
6231 ? T_OPCODE_ADD_R3 : T_OPCODE_SUB_R3);
6232 inst.instruction |= Rd | (Rs << 3) | (Rn << 6);
6240 if (unified_syntax && inst.size_req == 0 && inst.operands[0].reg <= 7)
6242 /* Defer to section relaxation. */
6243 inst.relax = inst.instruction;
6244 inst.instruction = THUMB_OP16 (inst.instruction);
6245 inst.instruction |= inst.operands[0].reg << 4;
6247 else if (unified_syntax && inst.size_req != 2)
6249 /* Generate a 32-bit opcode. */
6250 inst.instruction = THUMB_OP32 (inst.instruction);
6251 inst.instruction |= inst.operands[0].reg << 8;
6252 inst.reloc.type = BFD_RELOC_ARM_T32_ADD_PC12;
6253 inst.reloc.pc_rel = 1;
6257 /* Generate a 16-bit opcode. */
6258 inst.instruction = THUMB_OP16 (inst.instruction);
6259 inst.reloc.type = BFD_RELOC_ARM_THUMB_ADD;
6260 inst.reloc.exp.X_add_number -= 4; /* PC relative adjust. */
6261 inst.reloc.pc_rel = 1;
6263 inst.instruction |= inst.operands[0].reg << 4;
6267 /* Arithmetic instructions for which there is just one 16-bit
6268 instruction encoding, and it allows only two low registers.
6269 For maximal compatibility with ARM syntax, we allow three register
6270 operands even when Thumb-32 instructions are not available, as long
6271 as the first two are identical. For instance, both "sbc r0,r1" and
6272 "sbc r0,r0,r1" are allowed. */
6278 Rd = inst.operands[0].reg;
6279 Rs = (inst.operands[1].present
6280 ? inst.operands[1].reg /* Rd, Rs, foo */
6281 : inst.operands[0].reg); /* Rd, foo -> Rd, Rd, foo */
6282 Rn = inst.operands[2].reg;
6286 if (!inst.operands[2].isreg)
6288 /* For an immediate, we always generate a 32-bit opcode;
6289 section relaxation will shrink it later if possible. */
6290 inst.instruction = THUMB_OP32 (inst.instruction);
6291 inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
6292 inst.instruction |= Rd << 8;
6293 inst.instruction |= Rs << 16;
6294 inst.reloc.type = BFD_RELOC_ARM_T32_IMMEDIATE;
6300 /* See if we can do this with a 16-bit instruction. */
6301 if (THUMB_SETS_FLAGS (inst.instruction))
6302 narrow = current_it_mask == 0;
6304 narrow = current_it_mask != 0;
6306 if (Rd > 7 || Rn > 7 || Rs > 7)
6308 if (inst.operands[2].shifted)
6310 if (inst.size_req == 4)
6316 inst.instruction = THUMB_OP16 (inst.instruction);
6317 inst.instruction |= Rd;
6318 inst.instruction |= Rn << 3;
6322 /* If we get here, it can't be done in 16 bits. */
6323 constraint (inst.operands[2].shifted
6324 && inst.operands[2].immisreg,
6325 _("shift must be constant"));
6326 inst.instruction = THUMB_OP32 (inst.instruction);
6327 inst.instruction |= Rd << 8;
6328 inst.instruction |= Rs << 16;
6329 encode_thumb32_shifted_operand (2);
6334 /* On its face this is a lie - the instruction does set the
6335 flags. However, the only supported mnemonic in this mode
6337 constraint (THUMB_SETS_FLAGS (inst.instruction), BAD_THUMB32);
6339 constraint (!inst.operands[2].isreg || inst.operands[2].shifted,
6340 _("unshifted register required"));
6341 constraint (Rd > 7 || Rs > 7 || Rn > 7, BAD_HIREG);
6342 constraint (Rd != Rs,
6343 _("dest and source1 must be the same register"));
6345 inst.instruction = THUMB_OP16 (inst.instruction);
6346 inst.instruction |= Rd;
6347 inst.instruction |= Rn << 3;
6351 /* Similarly, but for instructions where the arithmetic operation is
6352 commutative, so we can allow either of them to be different from
6353 the destination operand in a 16-bit instruction. For instance, all
6354 three of "adc r0,r1", "adc r0,r0,r1", and "adc r0,r1,r0" are
6361 Rd = inst.operands[0].reg;
6362 Rs = (inst.operands[1].present
6363 ? inst.operands[1].reg /* Rd, Rs, foo */
6364 : inst.operands[0].reg); /* Rd, foo -> Rd, Rd, foo */
6365 Rn = inst.operands[2].reg;
6369 if (!inst.operands[2].isreg)
6371 /* For an immediate, we always generate a 32-bit opcode;
6372 section relaxation will shrink it later if possible. */
6373 inst.instruction = THUMB_OP32 (inst.instruction);
6374 inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
6375 inst.instruction |= Rd << 8;
6376 inst.instruction |= Rs << 16;
6377 inst.reloc.type = BFD_RELOC_ARM_T32_IMMEDIATE;
6383 /* See if we can do this with a 16-bit instruction. */
6384 if (THUMB_SETS_FLAGS (inst.instruction))
6385 narrow = current_it_mask == 0;
6387 narrow = current_it_mask != 0;
6389 if (Rd > 7 || Rn > 7 || Rs > 7)
6391 if (inst.operands[2].shifted)
6393 if (inst.size_req == 4)
6400 inst.instruction = THUMB_OP16 (inst.instruction);
6401 inst.instruction |= Rd;
6402 inst.instruction |= Rn << 3;
6407 inst.instruction = THUMB_OP16 (inst.instruction);
6408 inst.instruction |= Rd;
6409 inst.instruction |= Rs << 3;
6414 /* If we get here, it can't be done in 16 bits. */
6415 constraint (inst.operands[2].shifted
6416 && inst.operands[2].immisreg,
6417 _("shift must be constant"));
6418 inst.instruction = THUMB_OP32 (inst.instruction);
6419 inst.instruction |= Rd << 8;
6420 inst.instruction |= Rs << 16;
6421 encode_thumb32_shifted_operand (2);
6426 /* On its face this is a lie - the instruction does set the
6427 flags. However, the only supported mnemonic in this mode
6429 constraint (THUMB_SETS_FLAGS (inst.instruction), BAD_THUMB32);
6431 constraint (!inst.operands[2].isreg || inst.operands[2].shifted,
6432 _("unshifted register required"));
6433 constraint (Rd > 7 || Rs > 7 || Rn > 7, BAD_HIREG);
6435 inst.instruction = THUMB_OP16 (inst.instruction);
6436 inst.instruction |= Rd;
6439 inst.instruction |= Rn << 3;
6441 inst.instruction |= Rs << 3;
6443 constraint (1, _("dest must overlap one source register"));
6450 unsigned int msb = inst.operands[1].imm + inst.operands[2].imm;
6451 constraint (msb > 32, _("bit-field extends past end of register"));
6452 /* The instruction encoding stores the LSB and MSB,
6453 not the LSB and width. */
6454 inst.instruction |= inst.operands[0].reg << 8;
6455 inst.instruction |= (inst.operands[1].imm & 0x1c) << 10;
6456 inst.instruction |= (inst.operands[1].imm & 0x03) << 6;
6457 inst.instruction |= msb - 1;
6465 /* #0 in second position is alternative syntax for bfc, which is
6466 the same instruction but with REG_PC in the Rm field. */
6467 if (!inst.operands[1].isreg)
6468 inst.operands[1].reg = REG_PC;
6470 msb = inst.operands[2].imm + inst.operands[3].imm;
6471 constraint (msb > 32, _("bit-field extends past end of register"));
6472 /* The instruction encoding stores the LSB and MSB,
6473 not the LSB and width. */
6474 inst.instruction |= inst.operands[0].reg << 8;
6475 inst.instruction |= inst.operands[1].reg << 16;
6476 inst.instruction |= (inst.operands[2].imm & 0x1c) << 10;
6477 inst.instruction |= (inst.operands[2].imm & 0x03) << 6;
6478 inst.instruction |= msb - 1;
6484 constraint (inst.operands[2].imm + inst.operands[3].imm > 32,
6485 _("bit-field extends past end of register"));
6486 inst.instruction |= inst.operands[0].reg << 8;
6487 inst.instruction |= inst.operands[1].reg << 16;
6488 inst.instruction |= (inst.operands[2].imm & 0x1c) << 10;
6489 inst.instruction |= (inst.operands[2].imm & 0x03) << 6;
6490 inst.instruction |= inst.operands[3].imm - 1;
6493 /* ARM V5 Thumb BLX (argument parse)
6494 BLX <target_addr> which is BLX(1)
6495 BLX <Rm> which is BLX(2)
6496 Unfortunately, there are two different opcodes for this mnemonic.
6497 So, the insns[].value is not used, and the code here zaps values
6498 into inst.instruction.
6500 ??? How to take advantage of the additional two bits of displacement
6501 available in Thumb32 mode? Need new relocation? */
6506 if (inst.operands[0].isreg)
6507 /* We have a register, so this is BLX(2). */
6508 inst.instruction |= inst.operands[0].reg << 3;
6511 /* No register. This must be BLX(1). */
6512 inst.instruction = 0xf000e800;
6514 if (EF_ARM_EABI_VERSION (meabi_flags) >= EF_ARM_EABI_VER4)
6515 inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH23;
6518 inst.reloc.type = BFD_RELOC_THUMB_PCREL_BLX;
6519 inst.reloc.pc_rel = 1;
6527 if (inst.cond != COND_ALWAYS)
6528 opcode = T_MNEM_bcond;
6530 opcode = inst.instruction;
6532 if (unified_syntax && inst.size_req == 4)
6534 inst.instruction = THUMB_OP32(opcode);
6535 if (inst.cond == COND_ALWAYS)
6536 inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH25;
6539 assert (inst.cond != 0xF);
6540 inst.instruction |= inst.cond << 22;
6541 inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH20;
6546 inst.instruction = THUMB_OP16(opcode);
6547 if (inst.cond == COND_ALWAYS)
6548 inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH12;
6551 inst.instruction |= inst.cond << 8;
6552 inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH9;
6554 /* Allow section relaxation. */
6555 if (unified_syntax && inst.size_req != 2)
6556 inst.relax = opcode;
6559 inst.reloc.pc_rel = 1;
6565 if (inst.operands[0].present)
6567 constraint (inst.operands[0].imm > 255,
6568 _("immediate value out of range"));
6569 inst.instruction |= inst.operands[0].imm;
6574 do_t_branch23 (void)
6576 inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH23;
6577 inst.reloc.pc_rel = 1;
6579 /* If the destination of the branch is a defined symbol which does not have
6580 the THUMB_FUNC attribute, then we must be calling a function which has
6581 the (interfacearm) attribute. We look for the Thumb entry point to that
6582 function and change the branch to refer to that function instead. */
6583 if ( inst.reloc.exp.X_op == O_symbol
6584 && inst.reloc.exp.X_add_symbol != NULL
6585 && S_IS_DEFINED (inst.reloc.exp.X_add_symbol)
6586 && ! THUMB_IS_FUNC (inst.reloc.exp.X_add_symbol))
6587 inst.reloc.exp.X_add_symbol =
6588 find_real_start (inst.reloc.exp.X_add_symbol);
6594 inst.instruction |= inst.operands[0].reg << 3;
6595 /* ??? FIXME: Should add a hacky reloc here if reg is REG_PC. The reloc
6596 should cause the alignment to be checked once it is known. This is
6597 because BX PC only works if the instruction is word aligned. */
6603 if (inst.operands[0].reg == REG_PC)
6604 as_tsktsk (_("use of r15 in bxj is not really useful"));
6606 inst.instruction |= inst.operands[0].reg << 16;
6612 inst.instruction |= inst.operands[0].reg << 8;
6613 inst.instruction |= inst.operands[1].reg << 16;
6614 inst.instruction |= inst.operands[1].reg;
6621 && (inst.operands[1].present || inst.size_req == 4))
6623 unsigned int imod = (inst.instruction & 0x0030) >> 4;
6624 inst.instruction = 0xf3af8000;
6625 inst.instruction |= imod << 9;
6626 inst.instruction |= inst.operands[0].imm << 5;
6627 if (inst.operands[1].present)
6628 inst.instruction |= 0x100 | inst.operands[1].imm;
6632 constraint (inst.operands[1].present,
6633 _("Thumb does not support the 2-argument "
6634 "form of this instruction"));
6635 inst.instruction |= inst.operands[0].imm;
6639 /* THUMB CPY instruction (argument parse). */
6644 if (inst.size_req == 4)
6646 inst.instruction = THUMB_OP32 (T_MNEM_mov);
6647 inst.instruction |= inst.operands[0].reg << 8;
6648 inst.instruction |= inst.operands[1].reg;
6652 inst.instruction |= (inst.operands[0].reg & 0x8) << 4;
6653 inst.instruction |= (inst.operands[0].reg & 0x7);
6654 inst.instruction |= inst.operands[1].reg << 3;
6661 constraint (inst.operands[0].reg > 7, BAD_HIREG);
6662 inst.instruction |= inst.operands[0].reg;
6663 inst.reloc.pc_rel = 1;
6664 inst.reloc.type = BFD_RELOC_THUMB_PCREL_BRANCH7;
6670 if (unified_syntax && inst.size_req == 4)
6671 inst.instruction = THUMB_OP32 (inst.instruction);
6673 inst.instruction = THUMB_OP16 (inst.instruction);
6679 unsigned int cond = inst.operands[0].imm;
6681 current_it_mask = (inst.instruction & 0xf) | 0x10;
6684 /* If the condition is a negative condition, invert the mask. */
6685 if ((cond & 0x1) == 0x0)
6687 unsigned int mask = inst.instruction & 0x000f;
6689 if ((mask & 0x7) == 0)
6690 /* no conversion needed */;
6691 else if ((mask & 0x3) == 0)
6693 else if ((mask & 0x1) == 0)
6698 inst.instruction &= 0xfff0;
6699 inst.instruction |= mask;
6702 inst.instruction |= cond << 4;
6708 /* This really doesn't seem worth it. */
6709 constraint (inst.reloc.type != BFD_RELOC_UNUSED,
6710 _("expression too complex"));
6711 constraint (inst.operands[1].writeback,
6712 _("Thumb load/store multiple does not support {reglist}^"));
6716 /* See if we can use a 16-bit instruction. */
6717 if (inst.instruction < 0xffff /* not ldmdb/stmdb */
6718 && inst.size_req != 4
6719 && inst.operands[0].reg <= 7
6720 && !(inst.operands[1].imm & ~0xff)
6721 && (inst.instruction == T_MNEM_stmia
6722 ? inst.operands[0].writeback
6723 : (inst.operands[0].writeback
6724 == !(inst.operands[1].imm & (1 << inst.operands[0].reg)))))
6726 if (inst.instruction == T_MNEM_stmia
6727 && (inst.operands[1].imm & (1 << inst.operands[0].reg))
6728 && (inst.operands[1].imm & ((1 << inst.operands[0].reg) - 1)))
6729 as_warn (_("value stored for r%d is UNPREDICTABLE"),
6730 inst.operands[0].reg);
6732 inst.instruction = THUMB_OP16 (inst.instruction);
6733 inst.instruction |= inst.operands[0].reg << 8;
6734 inst.instruction |= inst.operands[1].imm;
6738 if (inst.operands[1].imm & (1 << 13))
6739 as_warn (_("SP should not be in register list"));
6740 if (inst.instruction == T_MNEM_stmia)
6742 if (inst.operands[1].imm & (1 << 15))
6743 as_warn (_("PC should not be in register list"));
6744 if (inst.operands[1].imm & (1 << inst.operands[0].reg))
6745 as_warn (_("value stored for r%d is UNPREDICTABLE"),
6746 inst.operands[0].reg);
6750 if (inst.operands[1].imm & (1 << 14)
6751 && inst.operands[1].imm & (1 << 15))
6752 as_warn (_("LR and PC should not both be in register list"));
6753 if ((inst.operands[1].imm & (1 << inst.operands[0].reg))
6754 && inst.operands[0].writeback)
6755 as_warn (_("base register should not be in register list "
6756 "when written back"));
6758 if (inst.instruction < 0xffff)
6759 inst.instruction = THUMB_OP32 (inst.instruction);
6760 inst.instruction |= inst.operands[0].reg << 16;
6761 inst.instruction |= inst.operands[1].imm;
6762 if (inst.operands[0].writeback)
6763 inst.instruction |= WRITE_BACK;
6768 constraint (inst.operands[0].reg > 7
6769 || (inst.operands[1].imm & ~0xff), BAD_HIREG);
6770 if (inst.instruction == T_MNEM_stmia)
6772 if (!inst.operands[0].writeback)
6773 as_warn (_("this instruction will write back the base register"));
6774 if ((inst.operands[1].imm & (1 << inst.operands[0].reg))
6775 && (inst.operands[1].imm & ((1 << inst.operands[0].reg) - 1)))
6776 as_warn (_("value stored for r%d is UNPREDICTABLE"),
6777 inst.operands[0].reg);
6781 if (!inst.operands[0].writeback
6782 && !(inst.operands[1].imm & (1 << inst.operands[0].reg)))
6783 as_warn (_("this instruction will write back the base register"));
6784 else if (inst.operands[0].writeback
6785 && (inst.operands[1].imm & (1 << inst.operands[0].reg)))
6786 as_warn (_("this instruction will not write back the base register"));
6789 inst.instruction = THUMB_OP16 (inst.instruction);
6790 inst.instruction |= inst.operands[0].reg << 8;
6791 inst.instruction |= inst.operands[1].imm;
6798 constraint (!inst.operands[1].isreg || !inst.operands[1].preind
6799 || inst.operands[1].postind || inst.operands[1].writeback
6800 || inst.operands[1].immisreg || inst.operands[1].shifted
6801 || inst.operands[1].negative,
6804 inst.instruction |= inst.operands[0].reg << 12;
6805 inst.instruction |= inst.operands[1].reg << 16;
6806 inst.reloc.type = BFD_RELOC_ARM_T32_OFFSET_U8;
6812 if (!inst.operands[1].present)
6814 constraint (inst.operands[0].reg == REG_LR,
6815 _("r14 not allowed as first register "
6816 "when second register is omitted"));
6817 inst.operands[1].reg = inst.operands[0].reg + 1;
6819 constraint (inst.operands[0].reg == inst.operands[1].reg,
6822 inst.instruction |= inst.operands[0].reg << 12;
6823 inst.instruction |= inst.operands[1].reg << 8;
6824 inst.instruction |= inst.operands[2].reg << 16;
6830 unsigned long opcode;
6833 opcode = inst.instruction;
6836 if (inst.operands[1].isreg
6837 && !inst.operands[1].writeback
6838 && !inst.operands[1].shifted && !inst.operands[1].postind
6839 && !inst.operands[1].negative && inst.operands[0].reg <= 7
6841 && inst.size_req != 4)
6843 /* Insn may have a 16-bit form. */
6844 Rn = inst.operands[1].reg;
6845 if (inst.operands[1].immisreg)
6847 inst.instruction = THUMB_OP16 (opcode);
6849 if (Rn <= 7 && inst.operands[1].imm <= 7)
6852 else if ((Rn <= 7 && opcode != T_MNEM_ldrsh
6853 && opcode != T_MNEM_ldrsb)
6854 || ((Rn == REG_PC || Rn == REG_SP) && opcode == T_MNEM_ldr)
6855 || (Rn == REG_SP && opcode == T_MNEM_str))
6862 if (inst.reloc.pc_rel)
6863 opcode = T_MNEM_ldr_pc2;
6865 opcode = T_MNEM_ldr_pc;
6869 if (opcode == T_MNEM_ldr)
6870 opcode = T_MNEM_ldr_sp;
6872 opcode = T_MNEM_str_sp;
6874 inst.instruction = inst.operands[0].reg << 8;
6878 inst.instruction = inst.operands[0].reg;
6879 inst.instruction |= inst.operands[1].reg << 3;
6881 inst.instruction |= THUMB_OP16 (opcode);
6882 if (inst.size_req == 2)
6883 inst.reloc.type = BFD_RELOC_ARM_THUMB_OFFSET;
6885 inst.relax = opcode;
6889 /* Definitely a 32-bit variant. */
6890 inst.instruction = THUMB_OP32 (opcode);
6891 inst.instruction |= inst.operands[0].reg << 12;
6892 encode_thumb32_addr_mode (1, /*is_t=*/FALSE, /*is_d=*/FALSE);
6896 constraint (inst.operands[0].reg > 7, BAD_HIREG);
6898 if (inst.instruction == T_MNEM_ldrsh || inst.instruction == T_MNEM_ldrsb)
6900 /* Only [Rn,Rm] is acceptable. */
6901 constraint (inst.operands[1].reg > 7 || inst.operands[1].imm > 7, BAD_HIREG);
6902 constraint (!inst.operands[1].isreg || !inst.operands[1].immisreg
6903 || inst.operands[1].postind || inst.operands[1].shifted
6904 || inst.operands[1].negative,
6905 _("Thumb does not support this addressing mode"));
6906 inst.instruction = THUMB_OP16 (inst.instruction);
6910 inst.instruction = THUMB_OP16 (inst.instruction);
6911 if (!inst.operands[1].isreg)
6912 if (move_or_literal_pool (0, /*thumb_p=*/TRUE, /*mode_3=*/FALSE))
6915 constraint (!inst.operands[1].preind
6916 || inst.operands[1].shifted
6917 || inst.operands[1].writeback,
6918 _("Thumb does not support this addressing mode"));
6919 if (inst.operands[1].reg == REG_PC || inst.operands[1].reg == REG_SP)
6921 constraint (inst.instruction & 0x0600,
6922 _("byte or halfword not valid for base register"));
6923 constraint (inst.operands[1].reg == REG_PC
6924 && !(inst.instruction & THUMB_LOAD_BIT),
6925 _("r15 based store not allowed"));
6926 constraint (inst.operands[1].immisreg,
6927 _("invalid base register for register offset"));
6929 if (inst.operands[1].reg == REG_PC)
6930 inst.instruction = T_OPCODE_LDR_PC;
6931 else if (inst.instruction & THUMB_LOAD_BIT)
6932 inst.instruction = T_OPCODE_LDR_SP;
6934 inst.instruction = T_OPCODE_STR_SP;
6936 inst.instruction |= inst.operands[0].reg << 8;
6937 inst.reloc.type = BFD_RELOC_ARM_THUMB_OFFSET;
6941 constraint (inst.operands[1].reg > 7, BAD_HIREG);
6942 if (!inst.operands[1].immisreg)
6944 /* Immediate offset. */
6945 inst.instruction |= inst.operands[0].reg;
6946 inst.instruction |= inst.operands[1].reg << 3;
6947 inst.reloc.type = BFD_RELOC_ARM_THUMB_OFFSET;
6951 /* Register offset. */
6952 constraint (inst.operands[1].imm > 7, BAD_HIREG);
6953 constraint (inst.operands[1].negative,
6954 _("Thumb does not support this addressing mode"));
6957 switch (inst.instruction)
6959 case T_OPCODE_STR_IW: inst.instruction = T_OPCODE_STR_RW; break;
6960 case T_OPCODE_STR_IH: inst.instruction = T_OPCODE_STR_RH; break;
6961 case T_OPCODE_STR_IB: inst.instruction = T_OPCODE_STR_RB; break;
6962 case T_OPCODE_LDR_IW: inst.instruction = T_OPCODE_LDR_RW; break;
6963 case T_OPCODE_LDR_IH: inst.instruction = T_OPCODE_LDR_RH; break;
6964 case T_OPCODE_LDR_IB: inst.instruction = T_OPCODE_LDR_RB; break;
6965 case 0x5600 /* ldrsb */:
6966 case 0x5e00 /* ldrsh */: break;
6970 inst.instruction |= inst.operands[0].reg;
6971 inst.instruction |= inst.operands[1].reg << 3;
6972 inst.instruction |= inst.operands[1].imm << 6;
6978 if (!inst.operands[1].present)
6980 inst.operands[1].reg = inst.operands[0].reg + 1;
6981 constraint (inst.operands[0].reg == REG_LR,
6982 _("r14 not allowed here"));
6984 inst.instruction |= inst.operands[0].reg << 12;
6985 inst.instruction |= inst.operands[1].reg << 8;
6986 encode_thumb32_addr_mode (2, /*is_t=*/FALSE, /*is_d=*/TRUE);
6993 inst.instruction |= inst.operands[0].reg << 12;
6994 encode_thumb32_addr_mode (1, /*is_t=*/TRUE, /*is_d=*/FALSE);
7000 inst.instruction |= inst.operands[0].reg << 8;
7001 inst.instruction |= inst.operands[1].reg << 16;
7002 inst.instruction |= inst.operands[2].reg;
7003 inst.instruction |= inst.operands[3].reg << 12;
7009 inst.instruction |= inst.operands[0].reg << 12;
7010 inst.instruction |= inst.operands[1].reg << 8;
7011 inst.instruction |= inst.operands[2].reg << 16;
7012 inst.instruction |= inst.operands[3].reg;
7020 int r0off = (inst.instruction == T_MNEM_mov
7021 || inst.instruction == T_MNEM_movs) ? 8 : 16;
7022 unsigned long opcode;
7024 bfd_boolean low_regs;
7026 low_regs = (inst.operands[0].reg <= 7 && inst.operands[1].reg <= 7);
7027 opcode = inst.instruction;
7028 if (current_it_mask)
7029 narrow = opcode != T_MNEM_movs;
7031 narrow = opcode != T_MNEM_movs || low_regs;
7032 if (inst.size_req == 4
7033 || inst.operands[1].shifted)
7036 if (!inst.operands[1].isreg)
7038 /* Immediate operand. */
7039 if (current_it_mask == 0 && opcode == T_MNEM_mov)
7041 if (low_regs && narrow)
7043 inst.instruction = THUMB_OP16 (opcode);
7044 inst.instruction |= inst.operands[0].reg << 8;
7045 if (inst.size_req == 2)
7046 inst.reloc.type = BFD_RELOC_ARM_THUMB_IMM;
7048 inst.relax = opcode;
7052 inst.instruction = THUMB_OP32 (inst.instruction);
7053 inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
7054 inst.instruction |= inst.operands[0].reg << r0off;
7055 inst.reloc.type = BFD_RELOC_ARM_T32_IMMEDIATE;
7060 inst.instruction = THUMB_OP32 (inst.instruction);
7061 inst.instruction |= inst.operands[0].reg << r0off;
7062 encode_thumb32_shifted_operand (1);
7065 switch (inst.instruction)
7068 inst.instruction = T_OPCODE_MOV_HR;
7069 inst.instruction |= (inst.operands[0].reg & 0x8) << 4;
7070 inst.instruction |= (inst.operands[0].reg & 0x7);
7071 inst.instruction |= inst.operands[1].reg << 3;
7075 /* We know we have low registers at this point.
7076 Generate ADD Rd, Rs, #0. */
7077 inst.instruction = T_OPCODE_ADD_I3;
7078 inst.instruction |= inst.operands[0].reg;
7079 inst.instruction |= inst.operands[1].reg << 3;
7085 inst.instruction = T_OPCODE_CMP_LR;
7086 inst.instruction |= inst.operands[0].reg;
7087 inst.instruction |= inst.operands[1].reg << 3;
7091 inst.instruction = T_OPCODE_CMP_HR;
7092 inst.instruction |= (inst.operands[0].reg & 0x8) << 4;
7093 inst.instruction |= (inst.operands[0].reg & 0x7);
7094 inst.instruction |= inst.operands[1].reg << 3;
7101 inst.instruction = THUMB_OP16 (inst.instruction);
7102 if (inst.operands[1].isreg)
7104 if (inst.operands[0].reg < 8 && inst.operands[1].reg < 8)
7106 /* A move of two lowregs is encoded as ADD Rd, Rs, #0
7107 since a MOV instruction produces unpredictable results. */
7108 if (inst.instruction == T_OPCODE_MOV_I8)
7109 inst.instruction = T_OPCODE_ADD_I3;
7111 inst.instruction = T_OPCODE_CMP_LR;
7113 inst.instruction |= inst.operands[0].reg;
7114 inst.instruction |= inst.operands[1].reg << 3;
7118 if (inst.instruction == T_OPCODE_MOV_I8)
7119 inst.instruction = T_OPCODE_MOV_HR;
7121 inst.instruction = T_OPCODE_CMP_HR;
7127 constraint (inst.operands[0].reg > 7,
7128 _("only lo regs allowed with immediate"));
7129 inst.instruction |= inst.operands[0].reg << 8;
7130 inst.reloc.type = BFD_RELOC_ARM_THUMB_IMM;
7137 inst.instruction |= inst.operands[0].reg << 8;
7138 inst.instruction |= (inst.operands[1].imm & 0xf000) << 4;
7139 inst.instruction |= (inst.operands[1].imm & 0x0800) << 15;
7140 inst.instruction |= (inst.operands[1].imm & 0x0700) << 4;
7141 inst.instruction |= (inst.operands[1].imm & 0x00ff);
7149 int r0off = (inst.instruction == T_MNEM_mvn
7150 || inst.instruction == T_MNEM_mvns) ? 8 : 16;
7153 if (inst.size_req == 4
7154 || inst.instruction > 0xffff
7155 || inst.operands[1].shifted
7156 || inst.operands[0].reg > 7 || inst.operands[1].reg > 7)
7158 else if (inst.instruction == T_MNEM_cmn)
7160 else if (THUMB_SETS_FLAGS (inst.instruction))
7161 narrow = (current_it_mask == 0);
7163 narrow = (current_it_mask != 0);
7165 if (!inst.operands[1].isreg)
7167 /* For an immediate, we always generate a 32-bit opcode;
7168 section relaxation will shrink it later if possible. */
7169 if (inst.instruction < 0xffff)
7170 inst.instruction = THUMB_OP32 (inst.instruction);
7171 inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
7172 inst.instruction |= inst.operands[0].reg << r0off;
7173 inst.reloc.type = BFD_RELOC_ARM_T32_IMMEDIATE;
7177 /* See if we can do this with a 16-bit instruction. */
7180 inst.instruction = THUMB_OP16 (inst.instruction);
7181 inst.instruction |= inst.operands[0].reg;
7182 inst.instruction |= inst.operands[1].reg << 3;
7186 constraint (inst.operands[1].shifted
7187 && inst.operands[1].immisreg,
7188 _("shift must be constant"));
7189 if (inst.instruction < 0xffff)
7190 inst.instruction = THUMB_OP32 (inst.instruction);
7191 inst.instruction |= inst.operands[0].reg << r0off;
7192 encode_thumb32_shifted_operand (1);
7198 constraint (inst.instruction > 0xffff
7199 || inst.instruction == T_MNEM_mvns, BAD_THUMB32);
7200 constraint (!inst.operands[1].isreg || inst.operands[1].shifted,
7201 _("unshifted register required"));
7202 constraint (inst.operands[0].reg > 7 || inst.operands[1].reg > 7,
7205 inst.instruction = THUMB_OP16 (inst.instruction);
7206 inst.instruction |= inst.operands[0].reg;
7207 inst.instruction |= inst.operands[1].reg << 3;
7214 /* mrs only accepts CPSR/SPSR/CPSR_all/SPSR_all. */
7215 constraint ((inst.operands[1].imm & (PSR_c|PSR_x|PSR_s|PSR_f))
7217 _("'CPSR' or 'SPSR' expected"));
7218 inst.instruction |= inst.operands[0].reg << 8;
7219 inst.instruction |= (inst.operands[1].imm & SPSR_BIT) >> 2;
7225 constraint (!inst.operands[1].isreg,
7226 _("Thumb encoding does not support an immediate here"));
7227 inst.instruction |= (inst.operands[0].imm & SPSR_BIT) >> 2;
7228 inst.instruction |= (inst.operands[0].imm & ~SPSR_BIT) >> 8;
7229 inst.instruction |= inst.operands[1].reg << 16;
7235 if (!inst.operands[2].present)
7236 inst.operands[2].reg = inst.operands[0].reg;
7238 /* There is no 32-bit MULS and no 16-bit MUL. */
7239 if (unified_syntax && inst.instruction == T_MNEM_mul)
7241 inst.instruction = THUMB_OP32 (inst.instruction);
7242 inst.instruction |= inst.operands[0].reg << 8;
7243 inst.instruction |= inst.operands[1].reg << 16;
7244 inst.instruction |= inst.operands[2].reg << 0;
7248 constraint (!unified_syntax
7249 && inst.instruction == T_MNEM_muls, BAD_THUMB32);
7250 constraint (inst.operands[0].reg > 7 || inst.operands[1].reg > 7,
7253 inst.instruction = THUMB_OP16 (inst.instruction);
7254 inst.instruction |= inst.operands[0].reg;
7256 if (inst.operands[0].reg == inst.operands[1].reg)
7257 inst.instruction |= inst.operands[2].reg << 3;
7258 else if (inst.operands[0].reg == inst.operands[2].reg)
7259 inst.instruction |= inst.operands[1].reg << 3;
7261 constraint (1, _("dest must overlap one source register"));
7268 inst.instruction |= inst.operands[0].reg << 12;
7269 inst.instruction |= inst.operands[1].reg << 8;
7270 inst.instruction |= inst.operands[2].reg << 16;
7271 inst.instruction |= inst.operands[3].reg;
7273 if (inst.operands[0].reg == inst.operands[1].reg)
7274 as_tsktsk (_("rdhi and rdlo must be different"));
7282 if (inst.size_req == 4 || inst.operands[0].imm > 15)
7284 inst.instruction = THUMB_OP32 (inst.instruction);
7285 inst.instruction |= inst.operands[0].imm;
7289 inst.instruction = THUMB_OP16 (inst.instruction);
7290 inst.instruction |= inst.operands[0].imm << 4;
7295 constraint (inst.operands[0].present,
7296 _("Thumb does not support NOP with hints"));
7297 inst.instruction = 0x46c0;
7308 if (THUMB_SETS_FLAGS (inst.instruction))
7309 narrow = (current_it_mask == 0);
7311 narrow = (current_it_mask != 0);
7312 if (inst.operands[0].reg > 7 || inst.operands[1].reg > 7)
7314 if (inst.size_req == 4)
7319 inst.instruction = THUMB_OP32 (inst.instruction);
7320 inst.instruction |= inst.operands[0].reg << 8;
7321 inst.instruction |= inst.operands[1].reg << 16;
7325 inst.instruction = THUMB_OP16 (inst.instruction);
7326 inst.instruction |= inst.operands[0].reg;
7327 inst.instruction |= inst.operands[1].reg << 3;
7332 constraint (inst.operands[0].reg > 7 || inst.operands[1].reg > 7,
7334 constraint (THUMB_SETS_FLAGS (inst.instruction), BAD_THUMB32);
7336 inst.instruction = THUMB_OP16 (inst.instruction);
7337 inst.instruction |= inst.operands[0].reg;
7338 inst.instruction |= inst.operands[1].reg << 3;
7345 inst.instruction |= inst.operands[0].reg << 8;
7346 inst.instruction |= inst.operands[1].reg << 16;
7347 inst.instruction |= inst.operands[2].reg;
7348 if (inst.operands[3].present)
7350 unsigned int val = inst.reloc.exp.X_add_number;
7351 constraint (inst.reloc.exp.X_op != O_constant,
7352 _("expression too complex"));
7353 inst.instruction |= (val & 0x1c) << 10;
7354 inst.instruction |= (val & 0x03) << 6;
7361 if (!inst.operands[3].present)
7362 inst.instruction &= ~0x00000020;
7369 encode_thumb32_addr_mode (0, /*is_t=*/FALSE, /*is_d=*/FALSE);
7373 do_t_push_pop (void)
7377 constraint (inst.operands[0].writeback,
7378 _("push/pop do not support {reglist}^"));
7379 constraint (inst.reloc.type != BFD_RELOC_UNUSED,
7380 _("expression too complex"));
7382 mask = inst.operands[0].imm;
7383 if ((mask & ~0xff) == 0)
7384 inst.instruction = THUMB_OP16 (inst.instruction);
7385 else if ((inst.instruction == T_MNEM_push
7386 && (mask & ~0xff) == 1 << REG_LR)
7387 || (inst.instruction == T_MNEM_pop
7388 && (mask & ~0xff) == 1 << REG_PC))
7390 inst.instruction = THUMB_OP16 (inst.instruction);
7391 inst.instruction |= THUMB_PP_PC_LR;
7394 else if (unified_syntax)
7396 if (mask & (1 << 13))
7397 inst.error = _("SP not allowed in register list");
7398 if (inst.instruction == T_MNEM_push)
7400 if (mask & (1 << 15))
7401 inst.error = _("PC not allowed in register list");
7405 if (mask & (1 << 14)
7406 && mask & (1 << 15))
7407 inst.error = _("LR and PC should not both be in register list");
7409 if ((mask & (mask - 1)) == 0)
7411 /* Single register push/pop implemented as str/ldr. */
7412 if (inst.instruction == T_MNEM_push)
7413 inst.instruction = 0xf84d0d04; /* str reg, [sp, #-4]! */
7415 inst.instruction = 0xf85d0b04; /* ldr reg, [sp], #4 */
7416 mask = ffs(mask) - 1;
7420 inst.instruction = THUMB_OP32 (inst.instruction);
7424 inst.error = _("invalid register list to push/pop instruction");
7428 inst.instruction |= mask;
7434 inst.instruction |= inst.operands[0].reg << 8;
7435 inst.instruction |= inst.operands[1].reg << 16;
7441 if (inst.operands[0].reg <= 7 && inst.operands[1].reg <= 7
7442 && inst.size_req != 4)
7444 inst.instruction = THUMB_OP16 (inst.instruction);
7445 inst.instruction |= inst.operands[0].reg;
7446 inst.instruction |= inst.operands[1].reg << 3;
7448 else if (unified_syntax)
7450 inst.instruction = THUMB_OP32 (inst.instruction);
7451 inst.instruction |= inst.operands[0].reg << 8;
7452 inst.instruction |= inst.operands[1].reg << 16;
7453 inst.instruction |= inst.operands[1].reg;
7456 inst.error = BAD_HIREG;
7464 Rd = inst.operands[0].reg;
7465 Rs = (inst.operands[1].present
7466 ? inst.operands[1].reg /* Rd, Rs, foo */
7467 : inst.operands[0].reg); /* Rd, foo -> Rd, Rd, foo */
7469 inst.instruction |= Rd << 8;
7470 inst.instruction |= Rs << 16;
7471 if (!inst.operands[2].isreg)
7473 inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
7474 inst.reloc.type = BFD_RELOC_ARM_T32_IMMEDIATE;
7477 encode_thumb32_shifted_operand (2);
7483 if (inst.operands[0].imm)
7484 inst.instruction |= 0x8;
7490 if (!inst.operands[1].present)
7491 inst.operands[1].reg = inst.operands[0].reg;
7498 switch (inst.instruction)
7501 case T_MNEM_asrs: shift_kind = SHIFT_ASR; break;
7503 case T_MNEM_lsls: shift_kind = SHIFT_LSL; break;
7505 case T_MNEM_lsrs: shift_kind = SHIFT_LSR; break;
7507 case T_MNEM_rors: shift_kind = SHIFT_ROR; break;
7511 if (THUMB_SETS_FLAGS (inst.instruction))
7512 narrow = (current_it_mask == 0);
7514 narrow = (current_it_mask != 0);
7515 if (inst.operands[0].reg > 7 || inst.operands[1].reg > 7)
7517 if (!inst.operands[2].isreg && shift_kind == SHIFT_ROR)
7519 if (inst.operands[2].isreg
7520 && (inst.operands[1].reg != inst.operands[0].reg
7521 || inst.operands[2].reg > 7))
7523 if (inst.size_req == 4)
7528 if (inst.operands[2].isreg)
7530 inst.instruction = THUMB_OP32 (inst.instruction);
7531 inst.instruction |= inst.operands[0].reg << 8;
7532 inst.instruction |= inst.operands[1].reg << 16;
7533 inst.instruction |= inst.operands[2].reg;
7537 inst.operands[1].shifted = 1;
7538 inst.operands[1].shift_kind = shift_kind;
7539 inst.instruction = THUMB_OP32 (THUMB_SETS_FLAGS (inst.instruction)
7540 ? T_MNEM_movs : T_MNEM_mov);
7541 inst.instruction |= inst.operands[0].reg << 8;
7542 encode_thumb32_shifted_operand (1);
7543 /* Prevent the incorrect generation of an ARM_IMMEDIATE fixup. */
7544 inst.reloc.type = BFD_RELOC_UNUSED;
7549 if (inst.operands[2].isreg)
7553 case SHIFT_ASR: inst.instruction = T_OPCODE_ASR_R; break;
7554 case SHIFT_LSL: inst.instruction = T_OPCODE_LSL_R; break;
7555 case SHIFT_LSR: inst.instruction = T_OPCODE_LSR_R; break;
7556 case SHIFT_ROR: inst.instruction = T_OPCODE_ROR_R; break;
7560 inst.instruction |= inst.operands[0].reg;
7561 inst.instruction |= inst.operands[2].reg << 3;
7567 case SHIFT_ASR: inst.instruction = T_OPCODE_ASR_I; break;
7568 case SHIFT_LSL: inst.instruction = T_OPCODE_LSL_I; break;
7569 case SHIFT_LSR: inst.instruction = T_OPCODE_LSR_I; break;
7572 inst.reloc.type = BFD_RELOC_ARM_THUMB_SHIFT;
7573 inst.instruction |= inst.operands[0].reg;
7574 inst.instruction |= inst.operands[1].reg << 3;
7580 constraint (inst.operands[0].reg > 7
7581 || inst.operands[1].reg > 7, BAD_HIREG);
7582 constraint (THUMB_SETS_FLAGS (inst.instruction), BAD_THUMB32);
7584 if (inst.operands[2].isreg) /* Rd, {Rs,} Rn */
7586 constraint (inst.operands[2].reg > 7, BAD_HIREG);
7587 constraint (inst.operands[0].reg != inst.operands[1].reg,
7588 _("source1 and dest must be same register"));
7590 switch (inst.instruction)
7592 case T_MNEM_asr: inst.instruction = T_OPCODE_ASR_R; break;
7593 case T_MNEM_lsl: inst.instruction = T_OPCODE_LSL_R; break;
7594 case T_MNEM_lsr: inst.instruction = T_OPCODE_LSR_R; break;
7595 case T_MNEM_ror: inst.instruction = T_OPCODE_ROR_R; break;
7599 inst.instruction |= inst.operands[0].reg;
7600 inst.instruction |= inst.operands[2].reg << 3;
7604 switch (inst.instruction)
7606 case T_MNEM_asr: inst.instruction = T_OPCODE_ASR_I; break;
7607 case T_MNEM_lsl: inst.instruction = T_OPCODE_LSL_I; break;
7608 case T_MNEM_lsr: inst.instruction = T_OPCODE_LSR_I; break;
7609 case T_MNEM_ror: inst.error = _("ror #imm not supported"); return;
7612 inst.reloc.type = BFD_RELOC_ARM_THUMB_SHIFT;
7613 inst.instruction |= inst.operands[0].reg;
7614 inst.instruction |= inst.operands[1].reg << 3;
7622 inst.instruction |= inst.operands[0].reg << 8;
7623 inst.instruction |= inst.operands[1].reg << 16;
7624 inst.instruction |= inst.operands[2].reg;
7630 unsigned int value = inst.reloc.exp.X_add_number;
7631 constraint (inst.reloc.exp.X_op != O_constant,
7632 _("expression too complex"));
7633 inst.reloc.type = BFD_RELOC_UNUSED;
7634 inst.instruction |= (value & 0xf000) >> 12;
7635 inst.instruction |= (value & 0x0ff0);
7636 inst.instruction |= (value & 0x000f) << 16;
7642 inst.instruction |= inst.operands[0].reg << 8;
7643 inst.instruction |= inst.operands[1].imm - 1;
7644 inst.instruction |= inst.operands[2].reg << 16;
7646 if (inst.operands[3].present)
7648 constraint (inst.reloc.exp.X_op != O_constant,
7649 _("expression too complex"));
7651 if (inst.reloc.exp.X_add_number != 0)
7653 if (inst.operands[3].shift_kind == SHIFT_ASR)
7654 inst.instruction |= 0x00200000; /* sh bit */
7655 inst.instruction |= (inst.reloc.exp.X_add_number & 0x1c) << 10;
7656 inst.instruction |= (inst.reloc.exp.X_add_number & 0x03) << 6;
7658 inst.reloc.type = BFD_RELOC_UNUSED;
7665 inst.instruction |= inst.operands[0].reg << 8;
7666 inst.instruction |= inst.operands[1].imm - 1;
7667 inst.instruction |= inst.operands[2].reg << 16;
7673 constraint (!inst.operands[2].isreg || !inst.operands[2].preind
7674 || inst.operands[2].postind || inst.operands[2].writeback
7675 || inst.operands[2].immisreg || inst.operands[2].shifted
7676 || inst.operands[2].negative,
7679 inst.instruction |= inst.operands[0].reg << 8;
7680 inst.instruction |= inst.operands[1].reg << 12;
7681 inst.instruction |= inst.operands[2].reg << 16;
7682 inst.reloc.type = BFD_RELOC_ARM_T32_OFFSET_U8;
7688 if (!inst.operands[2].present)
7689 inst.operands[2].reg = inst.operands[1].reg + 1;
7691 constraint (inst.operands[0].reg == inst.operands[1].reg
7692 || inst.operands[0].reg == inst.operands[2].reg
7693 || inst.operands[0].reg == inst.operands[3].reg
7694 || inst.operands[1].reg == inst.operands[2].reg,
7697 inst.instruction |= inst.operands[0].reg;
7698 inst.instruction |= inst.operands[1].reg << 12;
7699 inst.instruction |= inst.operands[2].reg << 8;
7700 inst.instruction |= inst.operands[3].reg << 16;
7706 inst.instruction |= inst.operands[0].reg << 8;
7707 inst.instruction |= inst.operands[1].reg << 16;
7708 inst.instruction |= inst.operands[2].reg;
7709 inst.instruction |= inst.operands[3].imm << 4;
7715 if (inst.instruction <= 0xffff && inst.size_req != 4
7716 && inst.operands[0].reg <= 7 && inst.operands[1].reg <= 7
7717 && (!inst.operands[2].present || inst.operands[2].imm == 0))
7719 inst.instruction = THUMB_OP16 (inst.instruction);
7720 inst.instruction |= inst.operands[0].reg;
7721 inst.instruction |= inst.operands[1].reg << 3;
7723 else if (unified_syntax)
7725 if (inst.instruction <= 0xffff)
7726 inst.instruction = THUMB_OP32 (inst.instruction);
7727 inst.instruction |= inst.operands[0].reg << 8;
7728 inst.instruction |= inst.operands[1].reg;
7729 inst.instruction |= inst.operands[2].imm << 4;
7733 constraint (inst.operands[2].present && inst.operands[2].imm != 0,
7734 _("Thumb encoding does not support rotation"));
7735 constraint (1, BAD_HIREG);
7742 inst.reloc.type = BFD_RELOC_ARM_SWI;
7750 half = (inst.instruction & 0x10) != 0;
7751 constraint (inst.operands[0].imm == 15,
7752 _("PC is not a valid index register"));
7753 constraint (!half && inst.operands[0].shifted,
7754 _("instruction does not allow shifted index"));
7755 constraint (half && !inst.operands[0].shifted,
7756 _("instruction requires shifted index"));
7757 inst.instruction |= (inst.operands[0].reg << 16) | inst.operands[0].imm;
7763 inst.instruction |= inst.operands[0].reg << 8;
7764 inst.instruction |= inst.operands[1].imm;
7765 inst.instruction |= inst.operands[2].reg << 16;
7767 if (inst.operands[3].present)
7769 constraint (inst.reloc.exp.X_op != O_constant,
7770 _("expression too complex"));
7771 if (inst.reloc.exp.X_add_number != 0)
7773 if (inst.operands[3].shift_kind == SHIFT_ASR)
7774 inst.instruction |= 0x00200000; /* sh bit */
7776 inst.instruction |= (inst.reloc.exp.X_add_number & 0x1c) << 10;
7777 inst.instruction |= (inst.reloc.exp.X_add_number & 0x03) << 6;
7779 inst.reloc.type = BFD_RELOC_UNUSED;
7786 inst.instruction |= inst.operands[0].reg << 8;
7787 inst.instruction |= inst.operands[1].imm;
7788 inst.instruction |= inst.operands[2].reg << 16;
7791 /* Overall per-instruction processing. */
7793 /* We need to be able to fix up arbitrary expressions in some statements.
7794 This is so that we can handle symbols that are an arbitrary distance from
7795 the pc. The most common cases are of the form ((+/-sym -/+ . - 8) & mask),
7796 which returns part of an address in a form which will be valid for
7797 a data instruction. We do this by pushing the expression into a symbol
7798 in the expr_section, and creating a fix for that. */
7801 fix_new_arm (fragS * frag,
7816 new_fix = fix_new_exp (frag, where, size, exp, pc_rel, reloc);
7820 new_fix = fix_new (frag, where, size, make_expr_symbol (exp), 0,
7825 /* Mark whether the fix is to a THUMB instruction, or an ARM
7827 new_fix->tc_fix_data = thumb_mode;
7830 /* Create a frg for an instruction requiring relaxation. */
7832 output_relax_insn (void)
7838 switch (inst.reloc.exp.X_op)
7841 sym = inst.reloc.exp.X_add_symbol;
7842 offset = inst.reloc.exp.X_add_number;
7846 offset = inst.reloc.exp.X_add_number;
7849 sym = make_expr_symbol (&inst.reloc.exp);
7853 to = frag_var (rs_machine_dependent, INSN_SIZE, THUMB_SIZE,
7854 inst.relax, sym, offset, NULL/*offset, opcode*/);
7855 md_number_to_chars (to, inst.instruction, THUMB_SIZE);
7858 dwarf2_emit_insn (INSN_SIZE);
7862 /* Write a 32-bit thumb instruction to buf. */
7864 put_thumb32_insn (char * buf, unsigned long insn)
7866 md_number_to_chars (buf, insn >> 16, THUMB_SIZE);
7867 md_number_to_chars (buf + THUMB_SIZE, insn, THUMB_SIZE);
7871 output_inst (const char * str)
7877 as_bad ("%s -- `%s'", inst.error, str);
7881 output_relax_insn();
7887 to = frag_more (inst.size);
7889 if (thumb_mode && (inst.size > THUMB_SIZE))
7891 assert (inst.size == (2 * THUMB_SIZE));
7892 put_thumb32_insn (to, inst.instruction);
7894 else if (inst.size > INSN_SIZE)
7896 assert (inst.size == (2 * INSN_SIZE));
7897 md_number_to_chars (to, inst.instruction, INSN_SIZE);
7898 md_number_to_chars (to + INSN_SIZE, inst.instruction, INSN_SIZE);
7901 md_number_to_chars (to, inst.instruction, inst.size);
7903 if (inst.reloc.type != BFD_RELOC_UNUSED)
7904 fix_new_arm (frag_now, to - frag_now->fr_literal,
7905 inst.size, & inst.reloc.exp, inst.reloc.pc_rel,
7909 dwarf2_emit_insn (inst.size);
7913 /* Tag values used in struct asm_opcode's tag field. */
7916 OT_unconditional, /* Instruction cannot be conditionalized.
7917 The ARM condition field is still 0xE. */
7918 OT_unconditionalF, /* Instruction cannot be conditionalized
7919 and carries 0xF in its ARM condition field. */
7920 OT_csuffix, /* Instruction takes a conditional suffix. */
7921 OT_cinfix3, /* Instruction takes a conditional infix,
7922 beginning at character index 3. (In
7923 unified mode, it becomes a suffix.) */
7924 OT_cinfix3_legacy, /* Legacy instruction takes a conditional infix at
7925 character index 3, even in unified mode. Used for
7926 legacy instructions where suffix and infix forms
7927 may be ambiguous. */
7928 OT_csuf_or_in3, /* Instruction takes either a conditional
7929 suffix or an infix at character index 3. */
7930 OT_odd_infix_unc, /* This is the unconditional variant of an
7931 instruction that takes a conditional infix
7932 at an unusual position. In unified mode,
7933 this variant will accept a suffix. */
7934 OT_odd_infix_0 /* Values greater than or equal to OT_odd_infix_0
7935 are the conditional variants of instructions that
7936 take conditional infixes in unusual positions.
7937 The infix appears at character index
7938 (tag - OT_odd_infix_0). These are not accepted
7942 /* Subroutine of md_assemble, responsible for looking up the primary
7943 opcode from the mnemonic the user wrote. STR points to the
7944 beginning of the mnemonic.
7946 This is not simply a hash table lookup, because of conditional
7947 variants. Most instructions have conditional variants, which are
7948 expressed with a _conditional affix_ to the mnemonic. If we were
7949 to encode each conditional variant as a literal string in the opcode
7950 table, it would have approximately 20,000 entries.
7952 Most mnemonics take this affix as a suffix, and in unified syntax,
7953 'most' is upgraded to 'all'. However, in the divided syntax, some
7954 instructions take the affix as an infix, notably the s-variants of
7955 the arithmetic instructions. Of those instructions, all but six
7956 have the infix appear after the third character of the mnemonic.
7958 Accordingly, the algorithm for looking up primary opcodes given
7961 1. Look up the identifier in the opcode table.
7962 If we find a match, go to step U.
7964 2. Look up the last two characters of the identifier in the
7965 conditions table. If we find a match, look up the first N-2
7966 characters of the identifier in the opcode table. If we
7967 find a match, go to step CE.
7969 3. Look up the fourth and fifth characters of the identifier in
7970 the conditions table. If we find a match, extract those
7971 characters from the identifier, and look up the remaining
7972 characters in the opcode table. If we find a match, go
7977 U. Examine the tag field of the opcode structure, in case this is
7978 one of the six instructions with its conditional infix in an
7979 unusual place. If it is, the tag tells us where to find the
7980 infix; look it up in the conditions table and set inst.cond
7981 accordingly. Otherwise, this is an unconditional instruction.
7982 Again set inst.cond accordingly. Return the opcode structure.
7984 CE. Examine the tag field to make sure this is an instruction that
7985 should receive a conditional suffix. If it is not, fail.
7986 Otherwise, set inst.cond from the suffix we already looked up,
7987 and return the opcode structure.
7989 CM. Examine the tag field to make sure this is an instruction that
7990 should receive a conditional infix after the third character.
7991 If it is not, fail. Otherwise, undo the edits to the current
7992 line of input and proceed as for case CE. */
7994 static const struct asm_opcode *
7995 opcode_lookup (char **str)
7999 const struct asm_opcode *opcode;
8000 const struct asm_cond *cond;
8003 /* Scan up to the end of the mnemonic, which must end in white space,
8004 '.' (in unified mode only), or end of string. */
8005 for (base = end = *str; *end != '\0'; end++)
8006 if (*end == ' ' || (unified_syntax && *end == '.'))
8012 /* Handle a possible width suffix. */
8015 if (end[1] == 'w' && (end[2] == ' ' || end[2] == '\0'))
8017 else if (end[1] == 'n' && (end[2] == ' ' || end[2] == '\0'))
8027 /* Look for unaffixed or special-case affixed mnemonic. */
8028 opcode = hash_find_n (arm_ops_hsh, base, end - base);
8032 if (opcode->tag < OT_odd_infix_0)
8034 inst.cond = COND_ALWAYS;
8039 as_warn (_("conditional infixes are deprecated in unified syntax"));
8040 affix = base + (opcode->tag - OT_odd_infix_0);
8041 cond = hash_find_n (arm_cond_hsh, affix, 2);
8044 inst.cond = cond->value;
8048 /* Cannot have a conditional suffix on a mnemonic of less than two
8053 /* Look for suffixed mnemonic. */
8055 cond = hash_find_n (arm_cond_hsh, affix, 2);
8056 opcode = hash_find_n (arm_ops_hsh, base, affix - base);
8060 switch (opcode->tag)
8062 case OT_cinfix3_legacy:
8063 /* Ignore conditional suffixes matched on infix only mnemonics. */
8067 case OT_odd_infix_unc:
8068 if (!unified_syntax)
8070 /* else fall through */
8073 case OT_csuf_or_in3:
8074 inst.cond = cond->value;
8077 case OT_unconditional:
8078 case OT_unconditionalF:
8079 /* delayed diagnostic */
8080 inst.error = BAD_COND;
8081 inst.cond = COND_ALWAYS;
8089 /* Cannot have a usual-position infix on a mnemonic of less than
8090 six characters (five would be a suffix). */
8094 /* Look for infixed mnemonic in the usual position. */
8096 cond = hash_find_n (arm_cond_hsh, affix, 2);
8100 memcpy (save, affix, 2);
8101 memmove (affix, affix + 2, (end - affix) - 2);
8102 opcode = hash_find_n (arm_ops_hsh, base, (end - base) - 2);
8103 memmove (affix + 2, affix, (end - affix) - 2);
8104 memcpy (affix, save, 2);
8106 if (opcode && (opcode->tag == OT_cinfix3 || opcode->tag == OT_csuf_or_in3
8107 || opcode->tag == OT_cinfix3_legacy))
8110 if (unified_syntax && opcode->tag == OT_cinfix3)
8111 as_warn (_("conditional infixes are deprecated in unified syntax"));
8113 inst.cond = cond->value;
8121 md_assemble (char *str)
8124 const struct asm_opcode * opcode;
8126 /* Align the previous label if needed. */
8127 if (last_label_seen != NULL)
8129 symbol_set_frag (last_label_seen, frag_now);
8130 S_SET_VALUE (last_label_seen, (valueT) frag_now_fix ());
8131 S_SET_SEGMENT (last_label_seen, now_seg);
8134 memset (&inst, '\0', sizeof (inst));
8135 inst.reloc.type = BFD_RELOC_UNUSED;
8137 opcode = opcode_lookup (&p);
8140 /* It wasn't an instruction, but it might be a register alias of
8141 the form alias .req reg. */
8142 if (!create_register_alias (str, p))
8143 as_bad (_("bad instruction `%s'"), str);
8150 arm_feature_set variant;
8152 variant = cpu_variant;
8153 /* Only allow coprocessor instructions on Thumb-2 capable devices. */
8154 if (!ARM_CPU_HAS_FEATURE (variant, arm_arch_t2))
8155 ARM_CLEAR_FEATURE (variant, variant, fpu_any_hard);
8156 /* Check that this instruction is supported for this CPU. */
8158 && !ARM_CPU_HAS_FEATURE (variant, *opcode->tvariant))
8160 as_bad (_("selected processor does not support `%s'"), str);
8163 if (inst.cond != COND_ALWAYS && !unified_syntax
8164 && opcode->tencode != do_t_branch)
8166 as_bad (_("Thumb does not support conditional execution"));
8170 /* Check conditional suffixes. */
8171 if (current_it_mask)
8174 cond = current_cc ^ ((current_it_mask >> 4) & 1) ^ 1;
8175 if (cond != inst.cond)
8177 as_bad (_("incorrect condition in IT block"));
8180 current_it_mask <<= 1;
8181 current_it_mask &= 0x1f;
8183 else if (inst.cond != COND_ALWAYS && opcode->tencode != do_t_branch)
8185 as_bad (_("thumb conditional instrunction not in IT block"));
8189 mapping_state (MAP_THUMB);
8190 inst.instruction = opcode->tvalue;
8192 if (!parse_operands (p, opcode->operands))
8195 /* Clear current_it_mask at the end of an IT block. */
8196 if (current_it_mask == 0x10)
8197 current_it_mask = 0;
8199 if (!(inst.error || inst.relax))
8201 assert (inst.instruction < 0xe800 || inst.instruction > 0xffff);
8202 inst.size = (inst.instruction > 0xffff ? 4 : 2);
8203 if (inst.size_req && inst.size_req != inst.size)
8205 as_bad (_("cannot honor width suffix -- `%s'"), str);
8209 ARM_MERGE_FEATURE_SETS (thumb_arch_used, thumb_arch_used,
8211 /* Many Thumb-2 instructions also have Thumb-1 variants, so explicitly
8212 set those bits when Thumb-2 32-bit instuctions are seen. ie.
8213 anything other than bl/blx.
8214 This is overly pessimistic for relaxable instructions. */
8215 if ((inst.size == 4 && (inst.instruction & 0xf800e800) != 0xf000e800)
8217 ARM_MERGE_FEATURE_SETS (thumb_arch_used, thumb_arch_used,
8222 /* Check that this instruction is supported for this CPU. */
8223 if (!ARM_CPU_HAS_FEATURE (cpu_variant, *opcode->avariant))
8225 as_bad (_("selected processor does not support `%s'"), str);
8230 as_bad (_("width suffixes are invalid in ARM mode -- `%s'"), str);
8234 mapping_state (MAP_ARM);
8235 inst.instruction = opcode->avalue;
8236 if (opcode->tag == OT_unconditionalF)
8237 inst.instruction |= 0xF << 28;
8239 inst.instruction |= inst.cond << 28;
8240 inst.size = INSN_SIZE;
8241 if (!parse_operands (p, opcode->operands))
8243 /* Arm mode bx is marked as both v4T and v5 because it's still required
8244 on a hypothetical non-thumb v5 core. */
8245 if (ARM_CPU_HAS_FEATURE (*opcode->avariant, arm_ext_v4t)
8246 || ARM_CPU_HAS_FEATURE (*opcode->avariant, arm_ext_v5))
8247 ARM_MERGE_FEATURE_SETS (arm_arch_used, arm_arch_used, arm_ext_v4t);
8249 ARM_MERGE_FEATURE_SETS (arm_arch_used, arm_arch_used,
8255 /* Various frobbings of labels and their addresses. */
8258 arm_start_line_hook (void)
8260 last_label_seen = NULL;
8264 arm_frob_label (symbolS * sym)
8266 last_label_seen = sym;
8268 ARM_SET_THUMB (sym, thumb_mode);
8270 #if defined OBJ_COFF || defined OBJ_ELF
8271 ARM_SET_INTERWORK (sym, support_interwork);
8274 /* Note - do not allow local symbols (.Lxxx) to be labeled
8275 as Thumb functions. This is because these labels, whilst
8276 they exist inside Thumb code, are not the entry points for
8277 possible ARM->Thumb calls. Also, these labels can be used
8278 as part of a computed goto or switch statement. eg gcc
8279 can generate code that looks like this:
8291 The first instruction loads the address of the jump table.
8292 The second instruction converts a table index into a byte offset.
8293 The third instruction gets the jump address out of the table.
8294 The fourth instruction performs the jump.
8296 If the address stored at .Laaa is that of a symbol which has the
8297 Thumb_Func bit set, then the linker will arrange for this address
8298 to have the bottom bit set, which in turn would mean that the
8299 address computation performed by the third instruction would end
8300 up with the bottom bit set. Since the ARM is capable of unaligned
8301 word loads, the instruction would then load the incorrect address
8302 out of the jump table, and chaos would ensue. */
8303 if (label_is_thumb_function_name
8304 && (S_GET_NAME (sym)[0] != '.' || S_GET_NAME (sym)[1] != 'L')
8305 && (bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE) != 0)
8307 /* When the address of a Thumb function is taken the bottom
8308 bit of that address should be set. This will allow
8309 interworking between Arm and Thumb functions to work
8312 THUMB_SET_FUNC (sym, 1);
8314 label_is_thumb_function_name = FALSE;
8318 dwarf2_emit_label (sym);
8323 arm_data_in_code (void)
8325 if (thumb_mode && ! strncmp (input_line_pointer + 1, "data:", 5))
8327 *input_line_pointer = '/';
8328 input_line_pointer += 5;
8329 *input_line_pointer = 0;
8337 arm_canonicalize_symbol_name (char * name)
8341 if (thumb_mode && (len = strlen (name)) > 5
8342 && streq (name + len - 5, "/data"))
8343 *(name + len - 5) = 0;
8348 /* Table of all register names defined by default. The user can
8349 define additional names with .req. Note that all register names
8350 should appear in both upper and lowercase variants. Some registers
8351 also have mixed-case names. */
8353 #define REGDEF(s,n,t) { #s, n, REG_TYPE_##t, TRUE }
8354 #define REGNUM(p,n,t) REGDEF(p##n, n, t)
8355 #define REGSET(p,t) \
8356 REGNUM(p, 0,t), REGNUM(p, 1,t), REGNUM(p, 2,t), REGNUM(p, 3,t), \
8357 REGNUM(p, 4,t), REGNUM(p, 5,t), REGNUM(p, 6,t), REGNUM(p, 7,t), \
8358 REGNUM(p, 8,t), REGNUM(p, 9,t), REGNUM(p,10,t), REGNUM(p,11,t), \
8359 REGNUM(p,12,t), REGNUM(p,13,t), REGNUM(p,14,t), REGNUM(p,15,t)
8361 static const struct reg_entry reg_names[] =
8363 /* ARM integer registers. */
8364 REGSET(r, RN), REGSET(R, RN),
8366 /* ATPCS synonyms. */
8367 REGDEF(a1,0,RN), REGDEF(a2,1,RN), REGDEF(a3, 2,RN), REGDEF(a4, 3,RN),
8368 REGDEF(v1,4,RN), REGDEF(v2,5,RN), REGDEF(v3, 6,RN), REGDEF(v4, 7,RN),
8369 REGDEF(v5,8,RN), REGDEF(v6,9,RN), REGDEF(v7,10,RN), REGDEF(v8,11,RN),
8371 REGDEF(A1,0,RN), REGDEF(A2,1,RN), REGDEF(A3, 2,RN), REGDEF(A4, 3,RN),
8372 REGDEF(V1,4,RN), REGDEF(V2,5,RN), REGDEF(V3, 6,RN), REGDEF(V4, 7,RN),
8373 REGDEF(V5,8,RN), REGDEF(V6,9,RN), REGDEF(V7,10,RN), REGDEF(V8,11,RN),
8375 /* Well-known aliases. */
8376 REGDEF(wr, 7,RN), REGDEF(sb, 9,RN), REGDEF(sl,10,RN), REGDEF(fp,11,RN),
8377 REGDEF(ip,12,RN), REGDEF(sp,13,RN), REGDEF(lr,14,RN), REGDEF(pc,15,RN),
8379 REGDEF(WR, 7,RN), REGDEF(SB, 9,RN), REGDEF(SL,10,RN), REGDEF(FP,11,RN),
8380 REGDEF(IP,12,RN), REGDEF(SP,13,RN), REGDEF(LR,14,RN), REGDEF(PC,15,RN),
8382 /* Coprocessor numbers. */
8383 REGSET(p, CP), REGSET(P, CP),
8385 /* Coprocessor register numbers. The "cr" variants are for backward
8387 REGSET(c, CN), REGSET(C, CN),
8388 REGSET(cr, CN), REGSET(CR, CN),
8390 /* FPA registers. */
8391 REGNUM(f,0,FN), REGNUM(f,1,FN), REGNUM(f,2,FN), REGNUM(f,3,FN),
8392 REGNUM(f,4,FN), REGNUM(f,5,FN), REGNUM(f,6,FN), REGNUM(f,7, FN),
8394 REGNUM(F,0,FN), REGNUM(F,1,FN), REGNUM(F,2,FN), REGNUM(F,3,FN),
8395 REGNUM(F,4,FN), REGNUM(F,5,FN), REGNUM(F,6,FN), REGNUM(F,7, FN),
8397 /* VFP SP registers. */
8399 REGNUM(s,16,VFS), REGNUM(s,17,VFS), REGNUM(s,18,VFS), REGNUM(s,19,VFS),
8400 REGNUM(s,20,VFS), REGNUM(s,21,VFS), REGNUM(s,22,VFS), REGNUM(s,23,VFS),
8401 REGNUM(s,24,VFS), REGNUM(s,25,VFS), REGNUM(s,26,VFS), REGNUM(s,27,VFS),
8402 REGNUM(s,28,VFS), REGNUM(s,29,VFS), REGNUM(s,30,VFS), REGNUM(s,31,VFS),
8405 REGNUM(S,16,VFS), REGNUM(S,17,VFS), REGNUM(S,18,VFS), REGNUM(S,19,VFS),
8406 REGNUM(S,20,VFS), REGNUM(S,21,VFS), REGNUM(S,22,VFS), REGNUM(S,23,VFS),
8407 REGNUM(S,24,VFS), REGNUM(S,25,VFS), REGNUM(S,26,VFS), REGNUM(S,27,VFS),
8408 REGNUM(S,28,VFS), REGNUM(S,29,VFS), REGNUM(S,30,VFS), REGNUM(S,31,VFS),
8410 /* VFP DP Registers. */
8411 REGSET(d,VFD), REGSET(D,VFS),
8413 /* VFP control registers. */
8414 REGDEF(fpsid,0,VFC), REGDEF(fpscr,1,VFC), REGDEF(fpexc,8,VFC),
8415 REGDEF(FPSID,0,VFC), REGDEF(FPSCR,1,VFC), REGDEF(FPEXC,8,VFC),
8417 /* Maverick DSP coprocessor registers. */
8418 REGSET(mvf,MVF), REGSET(mvd,MVD), REGSET(mvfx,MVFX), REGSET(mvdx,MVDX),
8419 REGSET(MVF,MVF), REGSET(MVD,MVD), REGSET(MVFX,MVFX), REGSET(MVDX,MVDX),
8421 REGNUM(mvax,0,MVAX), REGNUM(mvax,1,MVAX),
8422 REGNUM(mvax,2,MVAX), REGNUM(mvax,3,MVAX),
8423 REGDEF(dspsc,0,DSPSC),
8425 REGNUM(MVAX,0,MVAX), REGNUM(MVAX,1,MVAX),
8426 REGNUM(MVAX,2,MVAX), REGNUM(MVAX,3,MVAX),
8427 REGDEF(DSPSC,0,DSPSC),
8429 /* iWMMXt data registers - p0, c0-15. */
8430 REGSET(wr,MMXWR), REGSET(wR,MMXWR), REGSET(WR, MMXWR),
8432 /* iWMMXt control registers - p1, c0-3. */
8433 REGDEF(wcid, 0,MMXWC), REGDEF(wCID, 0,MMXWC), REGDEF(WCID, 0,MMXWC),
8434 REGDEF(wcon, 1,MMXWC), REGDEF(wCon, 1,MMXWC), REGDEF(WCON, 1,MMXWC),
8435 REGDEF(wcssf, 2,MMXWC), REGDEF(wCSSF, 2,MMXWC), REGDEF(WCSSF, 2,MMXWC),
8436 REGDEF(wcasf, 3,MMXWC), REGDEF(wCASF, 3,MMXWC), REGDEF(WCASF, 3,MMXWC),
8438 /* iWMMXt scalar (constant/offset) registers - p1, c8-11. */
8439 REGDEF(wcgr0, 8,MMXWCG), REGDEF(wCGR0, 8,MMXWCG), REGDEF(WCGR0, 8,MMXWCG),
8440 REGDEF(wcgr1, 9,MMXWCG), REGDEF(wCGR1, 9,MMXWCG), REGDEF(WCGR1, 9,MMXWCG),
8441 REGDEF(wcgr2,10,MMXWCG), REGDEF(wCGR2,10,MMXWCG), REGDEF(WCGR2,10,MMXWCG),
8442 REGDEF(wcgr3,11,MMXWCG), REGDEF(wCGR3,11,MMXWCG), REGDEF(WCGR3,11,MMXWCG),
8444 /* XScale accumulator registers. */
8445 REGNUM(acc,0,XSCALE), REGNUM(ACC,0,XSCALE),
8451 /* Table of all PSR suffixes. Bare "CPSR" and "SPSR" are handled
8452 within psr_required_here. */
8453 static const struct asm_psr psrs[] =
8455 /* Backward compatibility notation. Note that "all" is no longer
8456 truly all possible PSR bits. */
8457 {"all", PSR_c | PSR_f},
8461 /* Individual flags. */
8466 /* Combinations of flags. */
8467 {"fs", PSR_f | PSR_s},
8468 {"fx", PSR_f | PSR_x},
8469 {"fc", PSR_f | PSR_c},
8470 {"sf", PSR_s | PSR_f},
8471 {"sx", PSR_s | PSR_x},
8472 {"sc", PSR_s | PSR_c},
8473 {"xf", PSR_x | PSR_f},
8474 {"xs", PSR_x | PSR_s},
8475 {"xc", PSR_x | PSR_c},
8476 {"cf", PSR_c | PSR_f},
8477 {"cs", PSR_c | PSR_s},
8478 {"cx", PSR_c | PSR_x},
8479 {"fsx", PSR_f | PSR_s | PSR_x},
8480 {"fsc", PSR_f | PSR_s | PSR_c},
8481 {"fxs", PSR_f | PSR_x | PSR_s},
8482 {"fxc", PSR_f | PSR_x | PSR_c},
8483 {"fcs", PSR_f | PSR_c | PSR_s},
8484 {"fcx", PSR_f | PSR_c | PSR_x},
8485 {"sfx", PSR_s | PSR_f | PSR_x},
8486 {"sfc", PSR_s | PSR_f | PSR_c},
8487 {"sxf", PSR_s | PSR_x | PSR_f},
8488 {"sxc", PSR_s | PSR_x | PSR_c},
8489 {"scf", PSR_s | PSR_c | PSR_f},
8490 {"scx", PSR_s | PSR_c | PSR_x},
8491 {"xfs", PSR_x | PSR_f | PSR_s},
8492 {"xfc", PSR_x | PSR_f | PSR_c},
8493 {"xsf", PSR_x | PSR_s | PSR_f},
8494 {"xsc", PSR_x | PSR_s | PSR_c},
8495 {"xcf", PSR_x | PSR_c | PSR_f},
8496 {"xcs", PSR_x | PSR_c | PSR_s},
8497 {"cfs", PSR_c | PSR_f | PSR_s},
8498 {"cfx", PSR_c | PSR_f | PSR_x},
8499 {"csf", PSR_c | PSR_s | PSR_f},
8500 {"csx", PSR_c | PSR_s | PSR_x},
8501 {"cxf", PSR_c | PSR_x | PSR_f},
8502 {"cxs", PSR_c | PSR_x | PSR_s},
8503 {"fsxc", PSR_f | PSR_s | PSR_x | PSR_c},
8504 {"fscx", PSR_f | PSR_s | PSR_c | PSR_x},
8505 {"fxsc", PSR_f | PSR_x | PSR_s | PSR_c},
8506 {"fxcs", PSR_f | PSR_x | PSR_c | PSR_s},
8507 {"fcsx", PSR_f | PSR_c | PSR_s | PSR_x},
8508 {"fcxs", PSR_f | PSR_c | PSR_x | PSR_s},
8509 {"sfxc", PSR_s | PSR_f | PSR_x | PSR_c},
8510 {"sfcx", PSR_s | PSR_f | PSR_c | PSR_x},
8511 {"sxfc", PSR_s | PSR_x | PSR_f | PSR_c},
8512 {"sxcf", PSR_s | PSR_x | PSR_c | PSR_f},
8513 {"scfx", PSR_s | PSR_c | PSR_f | PSR_x},
8514 {"scxf", PSR_s | PSR_c | PSR_x | PSR_f},
8515 {"xfsc", PSR_x | PSR_f | PSR_s | PSR_c},
8516 {"xfcs", PSR_x | PSR_f | PSR_c | PSR_s},
8517 {"xsfc", PSR_x | PSR_s | PSR_f | PSR_c},
8518 {"xscf", PSR_x | PSR_s | PSR_c | PSR_f},
8519 {"xcfs", PSR_x | PSR_c | PSR_f | PSR_s},
8520 {"xcsf", PSR_x | PSR_c | PSR_s | PSR_f},
8521 {"cfsx", PSR_c | PSR_f | PSR_s | PSR_x},
8522 {"cfxs", PSR_c | PSR_f | PSR_x | PSR_s},
8523 {"csfx", PSR_c | PSR_s | PSR_f | PSR_x},
8524 {"csxf", PSR_c | PSR_s | PSR_x | PSR_f},
8525 {"cxfs", PSR_c | PSR_x | PSR_f | PSR_s},
8526 {"cxsf", PSR_c | PSR_x | PSR_s | PSR_f},
8529 /* Table of all shift-in-operand names. */
8530 static const struct asm_shift_name shift_names [] =
8532 { "asl", SHIFT_LSL }, { "ASL", SHIFT_LSL },
8533 { "lsl", SHIFT_LSL }, { "LSL", SHIFT_LSL },
8534 { "lsr", SHIFT_LSR }, { "LSR", SHIFT_LSR },
8535 { "asr", SHIFT_ASR }, { "ASR", SHIFT_ASR },
8536 { "ror", SHIFT_ROR }, { "ROR", SHIFT_ROR },
8537 { "rrx", SHIFT_RRX }, { "RRX", SHIFT_RRX }
8540 /* Table of all explicit relocation names. */
8542 static struct reloc_entry reloc_names[] =
8544 { "got", BFD_RELOC_ARM_GOT32 }, { "GOT", BFD_RELOC_ARM_GOT32 },
8545 { "gotoff", BFD_RELOC_ARM_GOTOFF }, { "GOTOFF", BFD_RELOC_ARM_GOTOFF },
8546 { "plt", BFD_RELOC_ARM_PLT32 }, { "PLT", BFD_RELOC_ARM_PLT32 },
8547 { "target1", BFD_RELOC_ARM_TARGET1 }, { "TARGET1", BFD_RELOC_ARM_TARGET1 },
8548 { "target2", BFD_RELOC_ARM_TARGET2 }, { "TARGET2", BFD_RELOC_ARM_TARGET2 },
8549 { "sbrel", BFD_RELOC_ARM_SBREL32 }, { "SBREL", BFD_RELOC_ARM_SBREL32 },
8550 { "tlsgd", BFD_RELOC_ARM_TLS_GD32}, { "TLSGD", BFD_RELOC_ARM_TLS_GD32},
8551 { "tlsldm", BFD_RELOC_ARM_TLS_LDM32}, { "TLSLDM", BFD_RELOC_ARM_TLS_LDM32},
8552 { "tlsldo", BFD_RELOC_ARM_TLS_LDO32}, { "TLSLDO", BFD_RELOC_ARM_TLS_LDO32},
8553 { "gottpoff",BFD_RELOC_ARM_TLS_IE32}, { "GOTTPOFF",BFD_RELOC_ARM_TLS_IE32},
8554 { "tpoff", BFD_RELOC_ARM_TLS_LE32}, { "TPOFF", BFD_RELOC_ARM_TLS_LE32}
8558 /* Table of all conditional affixes. 0xF is not defined as a condition code. */
8559 static const struct asm_cond conds[] =
8563 {"cs", 0x2}, {"hs", 0x2},
8564 {"cc", 0x3}, {"ul", 0x3}, {"lo", 0x3},
8578 /* Table of ARM-format instructions. */
8580 /* Macros for gluing together operand strings. N.B. In all cases
8581 other than OPS0, the trailing OP_stop comes from default
8582 zero-initialization of the unspecified elements of the array. */
8583 #define OPS0() { OP_stop, }
8584 #define OPS1(a) { OP_##a, }
8585 #define OPS2(a,b) { OP_##a,OP_##b, }
8586 #define OPS3(a,b,c) { OP_##a,OP_##b,OP_##c, }
8587 #define OPS4(a,b,c,d) { OP_##a,OP_##b,OP_##c,OP_##d, }
8588 #define OPS5(a,b,c,d,e) { OP_##a,OP_##b,OP_##c,OP_##d,OP_##e, }
8589 #define OPS6(a,b,c,d,e,f) { OP_##a,OP_##b,OP_##c,OP_##d,OP_##e,OP_##f, }
8591 /* These macros abstract out the exact format of the mnemonic table and
8592 save some repeated characters. */
8594 /* The normal sort of mnemonic; has a Thumb variant; takes a conditional suffix. */
8595 #define TxCE(mnem, op, top, nops, ops, ae, te) \
8596 { #mnem, OPS##nops ops, OT_csuffix, 0x##op, top, ARM_VARIANT, \
8597 THUMB_VARIANT, do_##ae, do_##te }
8599 /* Two variants of the above - TCE for a numeric Thumb opcode, tCE for
8600 a T_MNEM_xyz enumerator. */
8601 #define TCE(mnem, aop, top, nops, ops, ae, te) \
8602 TxCE(mnem, aop, 0x##top, nops, ops, ae, te)
8603 #define tCE(mnem, aop, top, nops, ops, ae, te) \
8604 TxCE(mnem, aop, T_MNEM_##top, nops, ops, ae, te)
8606 /* Second most common sort of mnemonic: has a Thumb variant, takes a conditional
8607 infix after the third character. */
8608 #define TxC3(mnem, op, top, nops, ops, ae, te) \
8609 { #mnem, OPS##nops ops, OT_cinfix3, 0x##op, top, ARM_VARIANT, \
8610 THUMB_VARIANT, do_##ae, do_##te }
8611 #define TC3(mnem, aop, top, nops, ops, ae, te) \
8612 TxC3(mnem, aop, 0x##top, nops, ops, ae, te)
8613 #define tC3(mnem, aop, top, nops, ops, ae, te) \
8614 TxC3(mnem, aop, T_MNEM_##top, nops, ops, ae, te)
8616 /* Mnemonic with a conditional infix in an unusual place. Each and every variant has to
8617 appear in the condition table. */
8618 #define TxCM_(m1, m2, m3, op, top, nops, ops, ae, te) \
8619 { #m1 #m2 #m3, OPS##nops ops, sizeof(#m2) == 1 ? OT_odd_infix_unc : OT_odd_infix_0 + sizeof(#m1) - 1, \
8620 0x##op, top, ARM_VARIANT, THUMB_VARIANT, do_##ae, do_##te }
8622 #define TxCM(m1, m2, op, top, nops, ops, ae, te) \
8623 TxCM_(m1, , m2, op, top, nops, ops, ae, te), \
8624 TxCM_(m1, eq, m2, op, top, nops, ops, ae, te), \
8625 TxCM_(m1, ne, m2, op, top, nops, ops, ae, te), \
8626 TxCM_(m1, cs, m2, op, top, nops, ops, ae, te), \
8627 TxCM_(m1, hs, m2, op, top, nops, ops, ae, te), \
8628 TxCM_(m1, cc, m2, op, top, nops, ops, ae, te), \
8629 TxCM_(m1, ul, m2, op, top, nops, ops, ae, te), \
8630 TxCM_(m1, lo, m2, op, top, nops, ops, ae, te), \
8631 TxCM_(m1, mi, m2, op, top, nops, ops, ae, te), \
8632 TxCM_(m1, pl, m2, op, top, nops, ops, ae, te), \
8633 TxCM_(m1, vs, m2, op, top, nops, ops, ae, te), \
8634 TxCM_(m1, vc, m2, op, top, nops, ops, ae, te), \
8635 TxCM_(m1, hi, m2, op, top, nops, ops, ae, te), \
8636 TxCM_(m1, ls, m2, op, top, nops, ops, ae, te), \
8637 TxCM_(m1, ge, m2, op, top, nops, ops, ae, te), \
8638 TxCM_(m1, lt, m2, op, top, nops, ops, ae, te), \
8639 TxCM_(m1, gt, m2, op, top, nops, ops, ae, te), \
8640 TxCM_(m1, le, m2, op, top, nops, ops, ae, te), \
8641 TxCM_(m1, al, m2, op, top, nops, ops, ae, te)
8643 #define TCM(m1,m2, aop, top, nops, ops, ae, te) \
8644 TxCM(m1,m2, aop, 0x##top, nops, ops, ae, te)
8645 #define tCM(m1,m2, aop, top, nops, ops, ae, te) \
8646 TxCM(m1,m2, aop, T_MNEM_##top, nops, ops, ae, te)
8648 /* Mnemonic that cannot be conditionalized. The ARM condition-code
8649 field is still 0xE. */
8650 #define TUE(mnem, op, top, nops, ops, ae, te) \
8651 { #mnem, OPS##nops ops, OT_unconditional, 0x##op, 0x##top, ARM_VARIANT, \
8652 THUMB_VARIANT, do_##ae, do_##te }
8654 /* Mnemonic that cannot be conditionalized, and bears 0xF in its ARM
8655 condition code field. */
8656 #define TUF(mnem, op, top, nops, ops, ae, te) \
8657 { #mnem, OPS##nops ops, OT_unconditionalF, 0x##op, 0x##top, ARM_VARIANT, \
8658 THUMB_VARIANT, do_##ae, do_##te }
8660 /* ARM-only variants of all the above. */
8661 #define CE(mnem, op, nops, ops, ae) \
8662 { #mnem, OPS##nops ops, OT_csuffix, 0x##op, 0x0, ARM_VARIANT, 0, do_##ae, NULL }
8664 #define C3(mnem, op, nops, ops, ae) \
8665 { #mnem, OPS##nops ops, OT_cinfix3, 0x##op, 0x0, ARM_VARIANT, 0, do_##ae, NULL }
8667 /* Legacy mnemonics that always have conditional infix after the third
8669 #define CL(mnem, op, nops, ops, ae) \
8670 { #mnem, OPS##nops ops, OT_cinfix3_legacy, \
8671 0x##op, 0x0, ARM_VARIANT, 0, do_##ae, NULL }
8673 /* Coprocessor instructions. Isomorphic between Arm and Thumb-2. */
8674 #define cCE(mnem, op, nops, ops, ae) \
8675 { #mnem, OPS##nops ops, OT_csuffix, 0x##op, 0xe##op, ARM_VARIANT, ARM_VARIANT, do_##ae, do_##ae }
8677 /* Legacy coprocessor instructions where conditional infix and conditional
8678 suffix are ambiguous. For consistency this includes all FPA instructions,
8679 not just the potentially ambiguous ones. */
8680 #define cCL(mnem, op, nops, ops, ae) \
8681 { #mnem, OPS##nops ops, OT_cinfix3_legacy, \
8682 0x##op, 0xe##op, ARM_VARIANT, ARM_VARIANT, do_##ae, do_##ae }
8684 /* Coprocessor, takes either a suffix or a position-3 infix
8685 (for an FPA corner case). */
8686 #define C3E(mnem, op, nops, ops, ae) \
8687 { #mnem, OPS##nops ops, OT_csuf_or_in3, \
8688 0x##op, 0xe##op, ARM_VARIANT, ARM_VARIANT, do_##ae, do_##ae }
8690 #define xCM_(m1, m2, m3, op, nops, ops, ae) \
8691 { #m1 #m2 #m3, OPS##nops ops, \
8692 sizeof(#m2) == 1 ? OT_odd_infix_unc : OT_odd_infix_0 + sizeof(#m1) - 1, \
8693 0x##op, 0x0, ARM_VARIANT, 0, do_##ae, NULL }
8695 #define CM(m1, m2, op, nops, ops, ae) \
8696 xCM_(m1, , m2, op, nops, ops, ae), \
8697 xCM_(m1, eq, m2, op, nops, ops, ae), \
8698 xCM_(m1, ne, m2, op, nops, ops, ae), \
8699 xCM_(m1, cs, m2, op, nops, ops, ae), \
8700 xCM_(m1, hs, m2, op, nops, ops, ae), \
8701 xCM_(m1, cc, m2, op, nops, ops, ae), \
8702 xCM_(m1, ul, m2, op, nops, ops, ae), \
8703 xCM_(m1, lo, m2, op, nops, ops, ae), \
8704 xCM_(m1, mi, m2, op, nops, ops, ae), \
8705 xCM_(m1, pl, m2, op, nops, ops, ae), \
8706 xCM_(m1, vs, m2, op, nops, ops, ae), \
8707 xCM_(m1, vc, m2, op, nops, ops, ae), \
8708 xCM_(m1, hi, m2, op, nops, ops, ae), \
8709 xCM_(m1, ls, m2, op, nops, ops, ae), \
8710 xCM_(m1, ge, m2, op, nops, ops, ae), \
8711 xCM_(m1, lt, m2, op, nops, ops, ae), \
8712 xCM_(m1, gt, m2, op, nops, ops, ae), \
8713 xCM_(m1, le, m2, op, nops, ops, ae), \
8714 xCM_(m1, al, m2, op, nops, ops, ae)
8716 #define UE(mnem, op, nops, ops, ae) \
8717 { #mnem, OPS##nops ops, OT_unconditional, 0x##op, 0, ARM_VARIANT, 0, do_##ae, NULL }
8719 #define UF(mnem, op, nops, ops, ae) \
8720 { #mnem, OPS##nops ops, OT_unconditionalF, 0x##op, 0, ARM_VARIANT, 0, do_##ae, NULL }
8724 /* Thumb-only, unconditional. */
8725 #define UT(mnem, op, nops, ops, te) TUE(mnem, 0, op, nops, ops, 0, te)
8727 static const struct asm_opcode insns[] =
8729 #define ARM_VARIANT &arm_ext_v1 /* Core ARM Instructions. */
8730 #define THUMB_VARIANT &arm_ext_v4t
8731 tCE(and, 0000000, and, 3, (RR, oRR, SH), arit, t_arit3c),
8732 tC3(ands, 0100000, ands, 3, (RR, oRR, SH), arit, t_arit3c),
8733 tCE(eor, 0200000, eor, 3, (RR, oRR, SH), arit, t_arit3c),
8734 tC3(eors, 0300000, eors, 3, (RR, oRR, SH), arit, t_arit3c),
8735 tCE(sub, 0400000, sub, 3, (RR, oRR, SH), arit, t_add_sub),
8736 tC3(subs, 0500000, subs, 3, (RR, oRR, SH), arit, t_add_sub),
8737 tCE(add, 0800000, add, 3, (RR, oRR, SH), arit, t_add_sub),
8738 tC3(adds, 0900000, adds, 3, (RR, oRR, SH), arit, t_add_sub),
8739 tCE(adc, 0a00000, adc, 3, (RR, oRR, SH), arit, t_arit3c),
8740 tC3(adcs, 0b00000, adcs, 3, (RR, oRR, SH), arit, t_arit3c),
8741 tCE(sbc, 0c00000, sbc, 3, (RR, oRR, SH), arit, t_arit3),
8742 tC3(sbcs, 0d00000, sbcs, 3, (RR, oRR, SH), arit, t_arit3),
8743 tCE(orr, 1800000, orr, 3, (RR, oRR, SH), arit, t_arit3c),
8744 tC3(orrs, 1900000, orrs, 3, (RR, oRR, SH), arit, t_arit3c),
8745 tCE(bic, 1c00000, bic, 3, (RR, oRR, SH), arit, t_arit3),
8746 tC3(bics, 1d00000, bics, 3, (RR, oRR, SH), arit, t_arit3),
8748 /* The p-variants of tst/cmp/cmn/teq (below) are the pre-V6 mechanism
8749 for setting PSR flag bits. They are obsolete in V6 and do not
8750 have Thumb equivalents. */
8751 tCE(tst, 1100000, tst, 2, (RR, SH), cmp, t_mvn_tst),
8752 tC3(tsts, 1100000, tst, 2, (RR, SH), cmp, t_mvn_tst),
8753 CL(tstp, 110f000, 2, (RR, SH), cmp),
8754 tCE(cmp, 1500000, cmp, 2, (RR, SH), cmp, t_mov_cmp),
8755 tC3(cmps, 1500000, cmp, 2, (RR, SH), cmp, t_mov_cmp),
8756 CL(cmpp, 150f000, 2, (RR, SH), cmp),
8757 tCE(cmn, 1700000, cmn, 2, (RR, SH), cmp, t_mvn_tst),
8758 tC3(cmns, 1700000, cmn, 2, (RR, SH), cmp, t_mvn_tst),
8759 CL(cmnp, 170f000, 2, (RR, SH), cmp),
8761 tCE(mov, 1a00000, mov, 2, (RR, SH), mov, t_mov_cmp),
8762 tC3(movs, 1b00000, movs, 2, (RR, SH), mov, t_mov_cmp),
8763 tCE(mvn, 1e00000, mvn, 2, (RR, SH), mov, t_mvn_tst),
8764 tC3(mvns, 1f00000, mvns, 2, (RR, SH), mov, t_mvn_tst),
8766 tCE(ldr, 4100000, ldr, 2, (RR, ADDR), ldst, t_ldst),
8767 tC3(ldrb, 4500000, ldrb, 2, (RR, ADDR), ldst, t_ldst),
8768 tCE(str, 4000000, str, 2, (RR, ADDR), ldst, t_ldst),
8769 tC3(strb, 4400000, strb, 2, (RR, ADDR), ldst, t_ldst),
8771 tC3(stmia, 8800000, stmia, 2, (RRw, REGLST), ldmstm, t_ldmstm),
8772 tC3(stmea, 8800000, stmia, 2, (RRw, REGLST), ldmstm, t_ldmstm),
8773 tC3(ldmia, 8900000, ldmia, 2, (RRw, REGLST), ldmstm, t_ldmstm),
8774 tC3(ldmfd, 8900000, ldmia, 2, (RRw, REGLST), ldmstm, t_ldmstm),
8776 TCE(swi, f000000, df00, 1, (EXPi), swi, t_swi),
8777 tCE(b, a000000, b, 1, (EXPr), branch, t_branch),
8778 TCE(bl, b000000, f000f800, 1, (EXPr), bl, t_branch23),
8781 tCE(adr, 28f0000, adr, 2, (RR, EXP), adr, t_adr),
8782 C3(adrl, 28f0000, 2, (RR, EXP), adrl),
8783 tCE(nop, 1a00000, nop, 1, (oI255c), nop, t_nop),
8785 /* Thumb-compatibility pseudo ops. */
8786 tCE(lsl, 1a00000, lsl, 3, (RR, oRR, SH), shift, t_shift),
8787 tC3(lsls, 1b00000, lsls, 3, (RR, oRR, SH), shift, t_shift),
8788 tCE(lsr, 1a00020, lsr, 3, (RR, oRR, SH), shift, t_shift),
8789 tC3(lsrs, 1b00020, lsrs, 3, (RR, oRR, SH), shift, t_shift),
8790 tCE(asr, 1a00040, asr, 3, (RR, oRR, SH), shift, t_shift),
8791 tC3(asrs, 1b00040, asrs, 3, (RR, oRR, SH), shift, t_shift),
8792 tCE(ror, 1a00060, ror, 3, (RR, oRR, SH), shift, t_shift),
8793 tC3(rors, 1b00060, rors, 3, (RR, oRR, SH), shift, t_shift),
8794 tCE(neg, 2600000, neg, 2, (RR, RR), rd_rn, t_neg),
8795 tC3(negs, 2700000, negs, 2, (RR, RR), rd_rn, t_neg),
8796 tCE(push, 92d0000, push, 1, (REGLST), push_pop, t_push_pop),
8797 tCE(pop, 8bd0000, pop, 1, (REGLST), push_pop, t_push_pop),
8799 #undef THUMB_VARIANT
8800 #define THUMB_VARIANT &arm_ext_v6
8801 TCE(cpy, 1a00000, 4600, 2, (RR, RR), rd_rm, t_cpy),
8803 /* V1 instructions with no Thumb analogue prior to V6T2. */
8804 #undef THUMB_VARIANT
8805 #define THUMB_VARIANT &arm_ext_v6t2
8806 TCE(rsb, 0600000, ebc00000, 3, (RR, oRR, SH), arit, t_rsb),
8807 TC3(rsbs, 0700000, ebd00000, 3, (RR, oRR, SH), arit, t_rsb),
8808 TCE(teq, 1300000, ea900f00, 2, (RR, SH), cmp, t_mvn_tst),
8809 TC3(teqs, 1300000, ea900f00, 2, (RR, SH), cmp, t_mvn_tst),
8810 CL(teqp, 130f000, 2, (RR, SH), cmp),
8812 TC3(ldrt, 4300000, f8500e00, 2, (RR, ADDR), ldstt, t_ldstt),
8813 TC3(ldrbt, 4700000, f8300e00, 2, (RR, ADDR), ldstt, t_ldstt),
8814 TC3(strt, 4200000, f8400e00, 2, (RR, ADDR), ldstt, t_ldstt),
8815 TC3(strbt, 4600000, f8200e00, 2, (RR, ADDR), ldstt, t_ldstt),
8817 TC3(stmdb, 9000000, e9000000, 2, (RRw, REGLST), ldmstm, t_ldmstm),
8818 TC3(stmfd, 9000000, e9000000, 2, (RRw, REGLST), ldmstm, t_ldmstm),
8820 TC3(ldmdb, 9100000, e9100000, 2, (RRw, REGLST), ldmstm, t_ldmstm),
8821 TC3(ldmea, 9100000, e9100000, 2, (RRw, REGLST), ldmstm, t_ldmstm),
8823 /* V1 instructions with no Thumb analogue at all. */
8824 CE(rsc, 0e00000, 3, (RR, oRR, SH), arit),
8825 C3(rscs, 0f00000, 3, (RR, oRR, SH), arit),
8827 C3(stmib, 9800000, 2, (RRw, REGLST), ldmstm),
8828 C3(stmfa, 9800000, 2, (RRw, REGLST), ldmstm),
8829 C3(stmda, 8000000, 2, (RRw, REGLST), ldmstm),
8830 C3(stmed, 8000000, 2, (RRw, REGLST), ldmstm),
8831 C3(ldmib, 9900000, 2, (RRw, REGLST), ldmstm),
8832 C3(ldmed, 9900000, 2, (RRw, REGLST), ldmstm),
8833 C3(ldmda, 8100000, 2, (RRw, REGLST), ldmstm),
8834 C3(ldmfa, 8100000, 2, (RRw, REGLST), ldmstm),
8837 #define ARM_VARIANT &arm_ext_v2 /* ARM 2 - multiplies. */
8838 #undef THUMB_VARIANT
8839 #define THUMB_VARIANT &arm_ext_v4t
8840 tCE(mul, 0000090, mul, 3, (RRnpc, RRnpc, oRR), mul, t_mul),
8841 tC3(muls, 0100090, muls, 3, (RRnpc, RRnpc, oRR), mul, t_mul),
8843 #undef THUMB_VARIANT
8844 #define THUMB_VARIANT &arm_ext_v6t2
8845 TCE(mla, 0200090, fb000000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mlas, t_mla),
8846 C3(mlas, 0300090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mlas),
8848 /* Generic coprocessor instructions. */
8849 TCE(cdp, e000000, ee000000, 6, (RCP, I15b, RCN, RCN, RCN, oI7b), cdp, cdp),
8850 TCE(ldc, c100000, ec100000, 3, (RCP, RCN, ADDR), lstc, lstc),
8851 TC3(ldcl, c500000, ec500000, 3, (RCP, RCN, ADDR), lstc, lstc),
8852 TCE(stc, c000000, ec000000, 3, (RCP, RCN, ADDR), lstc, lstc),
8853 TC3(stcl, c400000, ec400000, 3, (RCP, RCN, ADDR), lstc, lstc),
8854 TCE(mcr, e000010, ee000010, 6, (RCP, I7b, RR, RCN, RCN, oI7b), co_reg, co_reg),
8855 TCE(mrc, e100010, ee100010, 6, (RCP, I7b, RR, RCN, RCN, oI7b), co_reg, co_reg),
8858 #define ARM_VARIANT &arm_ext_v2s /* ARM 3 - swp instructions. */
8859 CE(swp, 1000090, 3, (RRnpc, RRnpc, RRnpcb), rd_rm_rn),
8860 C3(swpb, 1400090, 3, (RRnpc, RRnpc, RRnpcb), rd_rm_rn),
8863 #define ARM_VARIANT &arm_ext_v3 /* ARM 6 Status register instructions. */
8864 TCE(mrs, 10f0000, f3ef8000, 2, (RR, PSR), mrs, t_mrs),
8865 TCE(msr, 120f000, f3808000, 2, (PSR, RR_EXi), msr, t_msr),
8868 #define ARM_VARIANT &arm_ext_v3m /* ARM 7M long multiplies. */
8869 TCE(smull, 0c00090, fb800000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull, t_mull),
8870 CM(smull,s, 0d00090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull),
8871 TCE(umull, 0800090, fba00000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull, t_mull),
8872 CM(umull,s, 0900090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull),
8873 TCE(smlal, 0e00090, fbc00000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull, t_mull),
8874 CM(smlal,s, 0f00090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull),
8875 TCE(umlal, 0a00090, fbe00000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull, t_mull),
8876 CM(umlal,s, 0b00090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mull),
8879 #define ARM_VARIANT &arm_ext_v4 /* ARM Architecture 4. */
8880 #undef THUMB_VARIANT
8881 #define THUMB_VARIANT &arm_ext_v4t
8882 tC3(ldrh, 01000b0, ldrh, 2, (RR, ADDR), ldstv4, t_ldst),
8883 tC3(strh, 00000b0, strh, 2, (RR, ADDR), ldstv4, t_ldst),
8884 tC3(ldrsh, 01000f0, ldrsh, 2, (RR, ADDR), ldstv4, t_ldst),
8885 tC3(ldrsb, 01000d0, ldrsb, 2, (RR, ADDR), ldstv4, t_ldst),
8886 tCM(ld,sh, 01000f0, ldrsh, 2, (RR, ADDR), ldstv4, t_ldst),
8887 tCM(ld,sb, 01000d0, ldrsb, 2, (RR, ADDR), ldstv4, t_ldst),
8890 #define ARM_VARIANT &arm_ext_v4t_5
8891 /* ARM Architecture 4T. */
8892 /* Note: bx (and blx) are required on V5, even if the processor does
8893 not support Thumb. */
8894 TCE(bx, 12fff10, 4700, 1, (RR), bx, t_bx),
8897 #define ARM_VARIANT &arm_ext_v5 /* ARM Architecture 5T. */
8898 #undef THUMB_VARIANT
8899 #define THUMB_VARIANT &arm_ext_v5t
8900 /* Note: blx has 2 variants; the .value coded here is for
8901 BLX(2). Only this variant has conditional execution. */
8902 TCE(blx, 12fff30, 4780, 1, (RR_EXr), blx, t_blx),
8903 TUE(bkpt, 1200070, be00, 1, (oIffffb), bkpt, t_bkpt),
8905 #undef THUMB_VARIANT
8906 #define THUMB_VARIANT &arm_ext_v6t2
8907 TCE(clz, 16f0f10, fab0f080, 2, (RRnpc, RRnpc), rd_rm, t_clz),
8908 TUF(ldc2, c100000, fc100000, 3, (RCP, RCN, ADDR), lstc, lstc),
8909 TUF(ldc2l, c500000, fc500000, 3, (RCP, RCN, ADDR), lstc, lstc),
8910 TUF(stc2, c000000, fc000000, 3, (RCP, RCN, ADDR), lstc, lstc),
8911 TUF(stc2l, c400000, fc400000, 3, (RCP, RCN, ADDR), lstc, lstc),
8912 TUF(cdp2, e000000, fe000000, 6, (RCP, I15b, RCN, RCN, RCN, oI7b), cdp, cdp),
8913 TUF(mcr2, e000010, fe000010, 6, (RCP, I7b, RR, RCN, RCN, oI7b), co_reg, co_reg),
8914 TUF(mrc2, e100010, fe100010, 6, (RCP, I7b, RR, RCN, RCN, oI7b), co_reg, co_reg),
8917 #define ARM_VARIANT &arm_ext_v5exp /* ARM Architecture 5TExP. */
8918 TCE(smlabb, 1000080, fb100000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
8919 TCE(smlatb, 10000a0, fb100020, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
8920 TCE(smlabt, 10000c0, fb100010, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
8921 TCE(smlatt, 10000e0, fb100030, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
8923 TCE(smlawb, 1200080, fb300000, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
8924 TCE(smlawt, 12000c0, fb300010, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smla, t_mla),
8926 TCE(smlalbb, 1400080, fbc00080, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smlal, t_mlal),
8927 TCE(smlaltb, 14000a0, fbc000a0, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smlal, t_mlal),
8928 TCE(smlalbt, 14000c0, fbc00090, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smlal, t_mlal),
8929 TCE(smlaltt, 14000e0, fbc000b0, 4, (RRnpc, RRnpc, RRnpc, RRnpc), smlal, t_mlal),
8931 TCE(smulbb, 1600080, fb10f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
8932 TCE(smultb, 16000a0, fb10f020, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
8933 TCE(smulbt, 16000c0, fb10f010, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
8934 TCE(smultt, 16000e0, fb10f030, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
8936 TCE(smulwb, 12000a0, fb30f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
8937 TCE(smulwt, 12000e0, fb30f010, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
8939 TCE(qadd, 1000050, fa80f080, 3, (RRnpc, RRnpc, RRnpc), rd_rm_rn, rd_rm_rn),
8940 TCE(qdadd, 1400050, fa80f090, 3, (RRnpc, RRnpc, RRnpc), rd_rm_rn, rd_rm_rn),
8941 TCE(qsub, 1200050, fa80f0a0, 3, (RRnpc, RRnpc, RRnpc), rd_rm_rn, rd_rm_rn),
8942 TCE(qdsub, 1600050, fa80f0b0, 3, (RRnpc, RRnpc, RRnpc), rd_rm_rn, rd_rm_rn),
8945 #define ARM_VARIANT &arm_ext_v5e /* ARM Architecture 5TE. */
8946 TUF(pld, 450f000, f810f000, 1, (ADDR), pld, t_pld),
8947 TC3(ldrd, 00000d0, e9500000, 3, (RRnpc, oRRnpc, ADDR), ldrd, t_ldstd),
8948 TC3(strd, 00000f0, e9400000, 3, (RRnpc, oRRnpc, ADDR), ldrd, t_ldstd),
8950 TCE(mcrr, c400000, ec400000, 5, (RCP, I15b, RRnpc, RRnpc, RCN), co_reg2c, co_reg2c),
8951 TCE(mrrc, c500000, ec500000, 5, (RCP, I15b, RRnpc, RRnpc, RCN), co_reg2c, co_reg2c),
8954 #define ARM_VARIANT &arm_ext_v5j /* ARM Architecture 5TEJ. */
8955 TCE(bxj, 12fff20, f3c08f00, 1, (RR), bxj, t_bxj),
8958 #define ARM_VARIANT &arm_ext_v6 /* ARM V6. */
8959 #undef THUMB_VARIANT
8960 #define THUMB_VARIANT &arm_ext_v6
8961 TUF(cpsie, 1080000, b660, 2, (CPSF, oI31b), cpsi, t_cpsi),
8962 TUF(cpsid, 10c0000, b670, 2, (CPSF, oI31b), cpsi, t_cpsi),
8963 tCE(rev, 6bf0f30, rev, 2, (RRnpc, RRnpc), rd_rm, t_rev),
8964 tCE(rev16, 6bf0fb0, rev16, 2, (RRnpc, RRnpc), rd_rm, t_rev),
8965 tCE(revsh, 6ff0fb0, revsh, 2, (RRnpc, RRnpc), rd_rm, t_rev),
8966 tCE(sxth, 6bf0070, sxth, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
8967 tCE(uxth, 6ff0070, uxth, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
8968 tCE(sxtb, 6af0070, sxtb, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
8969 tCE(uxtb, 6ef0070, uxtb, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
8970 TUF(setend, 1010000, b650, 1, (ENDI), setend, t_setend),
8972 #undef THUMB_VARIANT
8973 #define THUMB_VARIANT &arm_ext_v6t2
8974 TUF(cps, 1020000, f3af8100, 1, (I31b), imm0, imm0),
8975 TCE(ldrex, 1900f9f, e8500f00, 2, (RRnpc, ADDR), ldrex, t_ldrex),
8976 TUF(mcrr2, c400000, fc400000, 5, (RCP, I15b, RRnpc, RRnpc, RCN), co_reg2c, co_reg2c),
8977 TUF(mrrc2, c500000, fc500000, 5, (RCP, I15b, RRnpc, RRnpc, RCN), co_reg2c, co_reg2c),
8978 TCE(pkhbt, 6800010, eac00000, 4, (RRnpc, RRnpc, RRnpc, oSHll), pkhbt, t_pkhbt),
8979 TCE(pkhtb, 6800050, eac00020, 4, (RRnpc, RRnpc, RRnpc, oSHar), pkhtb, t_pkhtb),
8980 TCE(qadd16, 6200f10, fa90f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8981 TCE(qadd8, 6200f90, fa80f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8982 TCE(qaddsubx, 6200f30, faa0f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8983 TCE(qsub16, 6200f70, fad0f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8984 TCE(qsub8, 6200ff0, fac0f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8985 TCE(qsubaddx, 6200f50, fae0f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8986 TCE(sadd16, 6100f10, fa90f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8987 TCE(sadd8, 6100f90, fa80f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8988 TCE(saddsubx, 6100f30, faa0f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8989 TCE(shadd16, 6300f10, fa90f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8990 TCE(shadd8, 6300f90, fa80f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8991 TCE(shaddsubx, 6300f30, faa0f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8992 TCE(shsub16, 6300f70, fad0f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8993 TCE(shsub8, 6300ff0, fac0f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8994 TCE(shsubaddx, 6300f50, fae0f020, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8995 TCE(ssub16, 6100f70, fad0f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8996 TCE(ssub8, 6100ff0, fac0f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8997 TCE(ssubaddx, 6100f50, fae0f000, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8998 TCE(uadd16, 6500f10, fa90f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
8999 TCE(uadd8, 6500f90, fa80f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9000 TCE(uaddsubx, 6500f30, faa0f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9001 TCE(uhadd16, 6700f10, fa90f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9002 TCE(uhadd8, 6700f90, fa80f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9003 TCE(uhaddsubx, 6700f30, faa0f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9004 TCE(uhsub16, 6700f70, fad0f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9005 TCE(uhsub8, 6700ff0, fac0f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9006 TCE(uhsubaddx, 6700f50, fae0f060, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9007 TCE(uqadd16, 6600f10, fa90f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9008 TCE(uqadd8, 6600f90, fa80f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9009 TCE(uqaddsubx, 6600f30, faa0f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9010 TCE(uqsub16, 6600f70, fad0f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9011 TCE(uqsub8, 6600ff0, fac0f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9012 TCE(uqsubaddx, 6600f50, fae0f050, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9013 TCE(usub16, 6500f70, fad0f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9014 TCE(usub8, 6500ff0, fac0f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9015 TCE(usubaddx, 6500f50, fae0f040, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9016 TUF(rfeia, 8900a00, e990c000, 1, (RRw), rfe, rfe),
9017 UF(rfeib, 9900a00, 1, (RRw), rfe),
9018 UF(rfeda, 8100a00, 1, (RRw), rfe),
9019 TUF(rfedb, 9100a00, e810c000, 1, (RRw), rfe, rfe),
9020 TUF(rfefd, 8900a00, e990c000, 1, (RRw), rfe, rfe),
9021 UF(rfefa, 9900a00, 1, (RRw), rfe),
9022 UF(rfeea, 8100a00, 1, (RRw), rfe),
9023 TUF(rfeed, 9100a00, e810c000, 1, (RRw), rfe, rfe),
9024 TCE(sxtah, 6b00070, fa00f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
9025 TCE(sxtab16, 6800070, fa20f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
9026 TCE(sxtab, 6a00070, fa40f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
9027 TCE(sxtb16, 68f0070, fa2ff080, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
9028 TCE(uxtah, 6f00070, fa10f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
9029 TCE(uxtab16, 6c00070, fa30f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
9030 TCE(uxtab, 6e00070, fa50f080, 4, (RRnpc, RRnpc, RRnpc, oROR), sxtah, t_sxtah),
9031 TCE(uxtb16, 6cf0070, fa3ff080, 3, (RRnpc, RRnpc, oROR), sxth, t_sxth),
9032 TCE(sel, 6800fb0, faa0f080, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
9033 TCE(smlad, 7000010, fb200000, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
9034 TCE(smladx, 7000030, fb200010, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
9035 TCE(smlald, 7400010, fbc000c0, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smlal,t_mlal),
9036 TCE(smlaldx, 7400030, fbc000d0, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smlal,t_mlal),
9037 TCE(smlsd, 7000050, fb400000, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
9038 TCE(smlsdx, 7000070, fb400010, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
9039 TCE(smlsld, 7400050, fbd000c0, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smlal,t_mlal),
9040 TCE(smlsldx, 7400070, fbd000d0, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smlal,t_mlal),
9041 TCE(smmla, 7500010, fb500000, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
9042 TCE(smmlar, 7500030, fb500010, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
9043 TCE(smmls, 75000d0, fb600000, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
9044 TCE(smmlsr, 75000f0, fb600010, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
9045 TCE(smmul, 750f010, fb50f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
9046 TCE(smmulr, 750f030, fb50f010, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
9047 TCE(smuad, 700f010, fb20f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
9048 TCE(smuadx, 700f030, fb20f010, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
9049 TCE(smusd, 700f050, fb40f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
9050 TCE(smusdx, 700f070, fb40f010, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
9051 TUF(srsia, 8cd0500, e980c000, 1, (I31w), srs, srs),
9052 UF(srsib, 9cd0500, 1, (I31w), srs),
9053 UF(srsda, 84d0500, 1, (I31w), srs),
9054 TUF(srsdb, 94d0500, e800c000, 1, (I31w), srs, srs),
9055 TCE(ssat, 6a00010, f3000000, 4, (RRnpc, I32, RRnpc, oSHllar),ssat, t_ssat),
9056 TCE(ssat16, 6a00f30, f3200000, 3, (RRnpc, I16, RRnpc), ssat16, t_ssat16),
9057 TCE(strex, 1800f90, e8400000, 3, (RRnpc, RRnpc, ADDR), strex, t_strex),
9058 TCE(umaal, 0400090, fbe00060, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smlal, t_mlal),
9059 TCE(usad8, 780f010, fb70f000, 3, (RRnpc, RRnpc, RRnpc), smul, t_simd),
9060 TCE(usada8, 7800010, fb700000, 4, (RRnpc, RRnpc, RRnpc, RRnpc),smla, t_mla),
9061 TCE(usat, 6e00010, f3800000, 4, (RRnpc, I31, RRnpc, oSHllar),usat, t_usat),
9062 TCE(usat16, 6e00f30, f3a00000, 3, (RRnpc, I15, RRnpc), usat16, t_usat16),
9065 #define ARM_VARIANT &arm_ext_v6k
9066 #undef THUMB_VARIANT
9067 #define THUMB_VARIANT &arm_ext_v6k
9068 tCE(yield, 320f001, yield, 0, (), noargs, t_hint),
9069 tCE(wfe, 320f002, wfe, 0, (), noargs, t_hint),
9070 tCE(wfi, 320f003, wfi, 0, (), noargs, t_hint),
9071 tCE(sev, 320f004, sev, 0, (), noargs, t_hint),
9073 #undef THUMB_VARIANT
9074 #define THUMB_VARIANT &arm_ext_v6t2
9075 TCE(ldrexb, 1d00f9f, e8d00f4f, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
9076 TCE(ldrexh, 1f00f9f, e8d00f5f, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
9077 TCE(ldrexd, 1b00f9f, e8d0007f, 3, (RRnpc, oRRnpc, RRnpcb), ldrexd, t_ldrexd),
9078 TCE(strexb, 1c00f90, e8c00f40, 3, (RRnpc, RRnpc, ADDR), strex, rm_rd_rn),
9079 TCE(strexh, 1e00f90, e8c00f50, 3, (RRnpc, RRnpc, ADDR), strex, rm_rd_rn),
9080 TCE(strexd, 1a00f90, e8c00070, 4, (RRnpc, RRnpc, oRRnpc, RRnpcb), strexd, t_strexd),
9081 TUF(clrex, 57ff01f, f3bf8f2f, 0, (), noargs, noargs),
9084 #define ARM_VARIANT &arm_ext_v6z
9085 TCE(smc, 1600070, f7f08000, 1, (EXPi), smc, t_smc),
9088 #define ARM_VARIANT &arm_ext_v6t2
9089 TCE(bfc, 7c0001f, f36f0000, 3, (RRnpc, I31, I32), bfc, t_bfc),
9090 TCE(bfi, 7c00010, f3600000, 4, (RRnpc, RRnpc_I0, I31, I32), bfi, t_bfi),
9091 TCE(sbfx, 7a00050, f3400000, 4, (RR, RR, I31, I32), bfx, t_bfx),
9092 TCE(ubfx, 7e00050, f3c00000, 4, (RR, RR, I31, I32), bfx, t_bfx),
9094 TCE(mls, 0600090, fb000010, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mlas, t_mla),
9095 TCE(movw, 3000000, f2400000, 2, (RRnpc, Iffff), mov16, t_mov16),
9096 TCE(movt, 3400000, f2c00000, 2, (RRnpc, Iffff), mov16, t_mov16),
9097 TCE(rbit, 3ff0f30, fa90f0a0, 2, (RR, RR), rd_rm, t_rbit),
9099 TC3(ldrht, 03000b0, f8300e00, 2, (RR, ADDR), ldsttv4, t_ldstt),
9100 TC3(ldrsht, 03000f0, f9300e00, 2, (RR, ADDR), ldsttv4, t_ldstt),
9101 TC3(ldrsbt, 03000d0, f9100e00, 2, (RR, ADDR), ldsttv4, t_ldstt),
9102 TC3(strht, 02000b0, f8200e00, 2, (RR, ADDR), ldsttv4, t_ldstt),
9104 UT(cbnz, b900, 2, (RR, EXP), t_czb),
9105 UT(cbz, b100, 2, (RR, EXP), t_czb),
9106 /* ARM does not really have an IT instruction. */
9107 TUE(it, 0, bf08, 1, (COND), it, t_it),
9108 TUE(itt, 0, bf0c, 1, (COND), it, t_it),
9109 TUE(ite, 0, bf04, 1, (COND), it, t_it),
9110 TUE(ittt, 0, bf0e, 1, (COND), it, t_it),
9111 TUE(itet, 0, bf06, 1, (COND), it, t_it),
9112 TUE(itte, 0, bf0a, 1, (COND), it, t_it),
9113 TUE(itee, 0, bf02, 1, (COND), it, t_it),
9114 TUE(itttt, 0, bf0f, 1, (COND), it, t_it),
9115 TUE(itett, 0, bf07, 1, (COND), it, t_it),
9116 TUE(ittet, 0, bf0b, 1, (COND), it, t_it),
9117 TUE(iteet, 0, bf03, 1, (COND), it, t_it),
9118 TUE(ittte, 0, bf0d, 1, (COND), it, t_it),
9119 TUE(itete, 0, bf05, 1, (COND), it, t_it),
9120 TUE(ittee, 0, bf09, 1, (COND), it, t_it),
9121 TUE(iteee, 0, bf01, 1, (COND), it, t_it),
9123 /* Thumb2 only instructions. */
9125 #define ARM_VARIANT NULL
9127 TCE(addw, 0, f2000000, 3, (RR, RR, EXPi), 0, t_add_sub_w),
9128 TCE(subw, 0, f2a00000, 3, (RR, RR, EXPi), 0, t_add_sub_w),
9129 TCE(tbb, 0, e8d0f000, 1, (TB), 0, t_tb),
9130 TCE(tbh, 0, e8d0f010, 1, (TB), 0, t_tb),
9133 #define ARM_VARIANT &fpu_fpa_ext_v1 /* Core FPA instruction set (V1). */
9134 cCE(wfs, e200110, 1, (RR), rd),
9135 cCE(rfs, e300110, 1, (RR), rd),
9136 cCE(wfc, e400110, 1, (RR), rd),
9137 cCE(rfc, e500110, 1, (RR), rd),
9139 cCL(ldfs, c100100, 2, (RF, ADDR), rd_cpaddr),
9140 cCL(ldfd, c108100, 2, (RF, ADDR), rd_cpaddr),
9141 cCL(ldfe, c500100, 2, (RF, ADDR), rd_cpaddr),
9142 cCL(ldfp, c508100, 2, (RF, ADDR), rd_cpaddr),
9144 cCL(stfs, c000100, 2, (RF, ADDR), rd_cpaddr),
9145 cCL(stfd, c008100, 2, (RF, ADDR), rd_cpaddr),
9146 cCL(stfe, c400100, 2, (RF, ADDR), rd_cpaddr),
9147 cCL(stfp, c408100, 2, (RF, ADDR), rd_cpaddr),
9149 cCL(mvfs, e008100, 2, (RF, RF_IF), rd_rm),
9150 cCL(mvfsp, e008120, 2, (RF, RF_IF), rd_rm),
9151 cCL(mvfsm, e008140, 2, (RF, RF_IF), rd_rm),
9152 cCL(mvfsz, e008160, 2, (RF, RF_IF), rd_rm),
9153 cCL(mvfd, e008180, 2, (RF, RF_IF), rd_rm),
9154 cCL(mvfdp, e0081a0, 2, (RF, RF_IF), rd_rm),
9155 cCL(mvfdm, e0081c0, 2, (RF, RF_IF), rd_rm),
9156 cCL(mvfdz, e0081e0, 2, (RF, RF_IF), rd_rm),
9157 cCL(mvfe, e088100, 2, (RF, RF_IF), rd_rm),
9158 cCL(mvfep, e088120, 2, (RF, RF_IF), rd_rm),
9159 cCL(mvfem, e088140, 2, (RF, RF_IF), rd_rm),
9160 cCL(mvfez, e088160, 2, (RF, RF_IF), rd_rm),
9162 cCL(mnfs, e108100, 2, (RF, RF_IF), rd_rm),
9163 cCL(mnfsp, e108120, 2, (RF, RF_IF), rd_rm),
9164 cCL(mnfsm, e108140, 2, (RF, RF_IF), rd_rm),
9165 cCL(mnfsz, e108160, 2, (RF, RF_IF), rd_rm),
9166 cCL(mnfd, e108180, 2, (RF, RF_IF), rd_rm),
9167 cCL(mnfdp, e1081a0, 2, (RF, RF_IF), rd_rm),
9168 cCL(mnfdm, e1081c0, 2, (RF, RF_IF), rd_rm),
9169 cCL(mnfdz, e1081e0, 2, (RF, RF_IF), rd_rm),
9170 cCL(mnfe, e188100, 2, (RF, RF_IF), rd_rm),
9171 cCL(mnfep, e188120, 2, (RF, RF_IF), rd_rm),
9172 cCL(mnfem, e188140, 2, (RF, RF_IF), rd_rm),
9173 cCL(mnfez, e188160, 2, (RF, RF_IF), rd_rm),
9175 cCL(abss, e208100, 2, (RF, RF_IF), rd_rm),
9176 cCL(abssp, e208120, 2, (RF, RF_IF), rd_rm),
9177 cCL(abssm, e208140, 2, (RF, RF_IF), rd_rm),
9178 cCL(abssz, e208160, 2, (RF, RF_IF), rd_rm),
9179 cCL(absd, e208180, 2, (RF, RF_IF), rd_rm),
9180 cCL(absdp, e2081a0, 2, (RF, RF_IF), rd_rm),
9181 cCL(absdm, e2081c0, 2, (RF, RF_IF), rd_rm),
9182 cCL(absdz, e2081e0, 2, (RF, RF_IF), rd_rm),
9183 cCL(abse, e288100, 2, (RF, RF_IF), rd_rm),
9184 cCL(absep, e288120, 2, (RF, RF_IF), rd_rm),
9185 cCL(absem, e288140, 2, (RF, RF_IF), rd_rm),
9186 cCL(absez, e288160, 2, (RF, RF_IF), rd_rm),
9188 cCL(rnds, e308100, 2, (RF, RF_IF), rd_rm),
9189 cCL(rndsp, e308120, 2, (RF, RF_IF), rd_rm),
9190 cCL(rndsm, e308140, 2, (RF, RF_IF), rd_rm),
9191 cCL(rndsz, e308160, 2, (RF, RF_IF), rd_rm),
9192 cCL(rndd, e308180, 2, (RF, RF_IF), rd_rm),
9193 cCL(rnddp, e3081a0, 2, (RF, RF_IF), rd_rm),
9194 cCL(rnddm, e3081c0, 2, (RF, RF_IF), rd_rm),
9195 cCL(rnddz, e3081e0, 2, (RF, RF_IF), rd_rm),
9196 cCL(rnde, e388100, 2, (RF, RF_IF), rd_rm),
9197 cCL(rndep, e388120, 2, (RF, RF_IF), rd_rm),
9198 cCL(rndem, e388140, 2, (RF, RF_IF), rd_rm),
9199 cCL(rndez, e388160, 2, (RF, RF_IF), rd_rm),
9201 cCL(sqts, e408100, 2, (RF, RF_IF), rd_rm),
9202 cCL(sqtsp, e408120, 2, (RF, RF_IF), rd_rm),
9203 cCL(sqtsm, e408140, 2, (RF, RF_IF), rd_rm),
9204 cCL(sqtsz, e408160, 2, (RF, RF_IF), rd_rm),
9205 cCL(sqtd, e408180, 2, (RF, RF_IF), rd_rm),
9206 cCL(sqtdp, e4081a0, 2, (RF, RF_IF), rd_rm),
9207 cCL(sqtdm, e4081c0, 2, (RF, RF_IF), rd_rm),
9208 cCL(sqtdz, e4081e0, 2, (RF, RF_IF), rd_rm),
9209 cCL(sqte, e488100, 2, (RF, RF_IF), rd_rm),
9210 cCL(sqtep, e488120, 2, (RF, RF_IF), rd_rm),
9211 cCL(sqtem, e488140, 2, (RF, RF_IF), rd_rm),
9212 cCL(sqtez, e488160, 2, (RF, RF_IF), rd_rm),
9214 cCL(logs, e508100, 2, (RF, RF_IF), rd_rm),
9215 cCL(logsp, e508120, 2, (RF, RF_IF), rd_rm),
9216 cCL(logsm, e508140, 2, (RF, RF_IF), rd_rm),
9217 cCL(logsz, e508160, 2, (RF, RF_IF), rd_rm),
9218 cCL(logd, e508180, 2, (RF, RF_IF), rd_rm),
9219 cCL(logdp, e5081a0, 2, (RF, RF_IF), rd_rm),
9220 cCL(logdm, e5081c0, 2, (RF, RF_IF), rd_rm),
9221 cCL(logdz, e5081e0, 2, (RF, RF_IF), rd_rm),
9222 cCL(loge, e588100, 2, (RF, RF_IF), rd_rm),
9223 cCL(logep, e588120, 2, (RF, RF_IF), rd_rm),
9224 cCL(logem, e588140, 2, (RF, RF_IF), rd_rm),
9225 cCL(logez, e588160, 2, (RF, RF_IF), rd_rm),
9227 cCL(lgns, e608100, 2, (RF, RF_IF), rd_rm),
9228 cCL(lgnsp, e608120, 2, (RF, RF_IF), rd_rm),
9229 cCL(lgnsm, e608140, 2, (RF, RF_IF), rd_rm),
9230 cCL(lgnsz, e608160, 2, (RF, RF_IF), rd_rm),
9231 cCL(lgnd, e608180, 2, (RF, RF_IF), rd_rm),
9232 cCL(lgndp, e6081a0, 2, (RF, RF_IF), rd_rm),
9233 cCL(lgndm, e6081c0, 2, (RF, RF_IF), rd_rm),
9234 cCL(lgndz, e6081e0, 2, (RF, RF_IF), rd_rm),
9235 cCL(lgne, e688100, 2, (RF, RF_IF), rd_rm),
9236 cCL(lgnep, e688120, 2, (RF, RF_IF), rd_rm),
9237 cCL(lgnem, e688140, 2, (RF, RF_IF), rd_rm),
9238 cCL(lgnez, e688160, 2, (RF, RF_IF), rd_rm),
9240 cCL(exps, e708100, 2, (RF, RF_IF), rd_rm),
9241 cCL(expsp, e708120, 2, (RF, RF_IF), rd_rm),
9242 cCL(expsm, e708140, 2, (RF, RF_IF), rd_rm),
9243 cCL(expsz, e708160, 2, (RF, RF_IF), rd_rm),
9244 cCL(expd, e708180, 2, (RF, RF_IF), rd_rm),
9245 cCL(expdp, e7081a0, 2, (RF, RF_IF), rd_rm),
9246 cCL(expdm, e7081c0, 2, (RF, RF_IF), rd_rm),
9247 cCL(expdz, e7081e0, 2, (RF, RF_IF), rd_rm),
9248 cCL(expe, e788100, 2, (RF, RF_IF), rd_rm),
9249 cCL(expep, e788120, 2, (RF, RF_IF), rd_rm),
9250 cCL(expem, e788140, 2, (RF, RF_IF), rd_rm),
9251 cCL(expdz, e788160, 2, (RF, RF_IF), rd_rm),
9253 cCL(sins, e808100, 2, (RF, RF_IF), rd_rm),
9254 cCL(sinsp, e808120, 2, (RF, RF_IF), rd_rm),
9255 cCL(sinsm, e808140, 2, (RF, RF_IF), rd_rm),
9256 cCL(sinsz, e808160, 2, (RF, RF_IF), rd_rm),
9257 cCL(sind, e808180, 2, (RF, RF_IF), rd_rm),
9258 cCL(sindp, e8081a0, 2, (RF, RF_IF), rd_rm),
9259 cCL(sindm, e8081c0, 2, (RF, RF_IF), rd_rm),
9260 cCL(sindz, e8081e0, 2, (RF, RF_IF), rd_rm),
9261 cCL(sine, e888100, 2, (RF, RF_IF), rd_rm),
9262 cCL(sinep, e888120, 2, (RF, RF_IF), rd_rm),
9263 cCL(sinem, e888140, 2, (RF, RF_IF), rd_rm),
9264 cCL(sinez, e888160, 2, (RF, RF_IF), rd_rm),
9266 cCL(coss, e908100, 2, (RF, RF_IF), rd_rm),
9267 cCL(cossp, e908120, 2, (RF, RF_IF), rd_rm),
9268 cCL(cossm, e908140, 2, (RF, RF_IF), rd_rm),
9269 cCL(cossz, e908160, 2, (RF, RF_IF), rd_rm),
9270 cCL(cosd, e908180, 2, (RF, RF_IF), rd_rm),
9271 cCL(cosdp, e9081a0, 2, (RF, RF_IF), rd_rm),
9272 cCL(cosdm, e9081c0, 2, (RF, RF_IF), rd_rm),
9273 cCL(cosdz, e9081e0, 2, (RF, RF_IF), rd_rm),
9274 cCL(cose, e988100, 2, (RF, RF_IF), rd_rm),
9275 cCL(cosep, e988120, 2, (RF, RF_IF), rd_rm),
9276 cCL(cosem, e988140, 2, (RF, RF_IF), rd_rm),
9277 cCL(cosez, e988160, 2, (RF, RF_IF), rd_rm),
9279 cCL(tans, ea08100, 2, (RF, RF_IF), rd_rm),
9280 cCL(tansp, ea08120, 2, (RF, RF_IF), rd_rm),
9281 cCL(tansm, ea08140, 2, (RF, RF_IF), rd_rm),
9282 cCL(tansz, ea08160, 2, (RF, RF_IF), rd_rm),
9283 cCL(tand, ea08180, 2, (RF, RF_IF), rd_rm),
9284 cCL(tandp, ea081a0, 2, (RF, RF_IF), rd_rm),
9285 cCL(tandm, ea081c0, 2, (RF, RF_IF), rd_rm),
9286 cCL(tandz, ea081e0, 2, (RF, RF_IF), rd_rm),
9287 cCL(tane, ea88100, 2, (RF, RF_IF), rd_rm),
9288 cCL(tanep, ea88120, 2, (RF, RF_IF), rd_rm),
9289 cCL(tanem, ea88140, 2, (RF, RF_IF), rd_rm),
9290 cCL(tanez, ea88160, 2, (RF, RF_IF), rd_rm),
9292 cCL(asns, eb08100, 2, (RF, RF_IF), rd_rm),
9293 cCL(asnsp, eb08120, 2, (RF, RF_IF), rd_rm),
9294 cCL(asnsm, eb08140, 2, (RF, RF_IF), rd_rm),
9295 cCL(asnsz, eb08160, 2, (RF, RF_IF), rd_rm),
9296 cCL(asnd, eb08180, 2, (RF, RF_IF), rd_rm),
9297 cCL(asndp, eb081a0, 2, (RF, RF_IF), rd_rm),
9298 cCL(asndm, eb081c0, 2, (RF, RF_IF), rd_rm),
9299 cCL(asndz, eb081e0, 2, (RF, RF_IF), rd_rm),
9300 cCL(asne, eb88100, 2, (RF, RF_IF), rd_rm),
9301 cCL(asnep, eb88120, 2, (RF, RF_IF), rd_rm),
9302 cCL(asnem, eb88140, 2, (RF, RF_IF), rd_rm),
9303 cCL(asnez, eb88160, 2, (RF, RF_IF), rd_rm),
9305 cCL(acss, ec08100, 2, (RF, RF_IF), rd_rm),
9306 cCL(acssp, ec08120, 2, (RF, RF_IF), rd_rm),
9307 cCL(acssm, ec08140, 2, (RF, RF_IF), rd_rm),
9308 cCL(acssz, ec08160, 2, (RF, RF_IF), rd_rm),
9309 cCL(acsd, ec08180, 2, (RF, RF_IF), rd_rm),
9310 cCL(acsdp, ec081a0, 2, (RF, RF_IF), rd_rm),
9311 cCL(acsdm, ec081c0, 2, (RF, RF_IF), rd_rm),
9312 cCL(acsdz, ec081e0, 2, (RF, RF_IF), rd_rm),
9313 cCL(acse, ec88100, 2, (RF, RF_IF), rd_rm),
9314 cCL(acsep, ec88120, 2, (RF, RF_IF), rd_rm),
9315 cCL(acsem, ec88140, 2, (RF, RF_IF), rd_rm),
9316 cCL(acsez, ec88160, 2, (RF, RF_IF), rd_rm),
9318 cCL(atns, ed08100, 2, (RF, RF_IF), rd_rm),
9319 cCL(atnsp, ed08120, 2, (RF, RF_IF), rd_rm),
9320 cCL(atnsm, ed08140, 2, (RF, RF_IF), rd_rm),
9321 cCL(atnsz, ed08160, 2, (RF, RF_IF), rd_rm),
9322 cCL(atnd, ed08180, 2, (RF, RF_IF), rd_rm),
9323 cCL(atndp, ed081a0, 2, (RF, RF_IF), rd_rm),
9324 cCL(atndm, ed081c0, 2, (RF, RF_IF), rd_rm),
9325 cCL(atndz, ed081e0, 2, (RF, RF_IF), rd_rm),
9326 cCL(atne, ed88100, 2, (RF, RF_IF), rd_rm),
9327 cCL(atnep, ed88120, 2, (RF, RF_IF), rd_rm),
9328 cCL(atnem, ed88140, 2, (RF, RF_IF), rd_rm),
9329 cCL(atnez, ed88160, 2, (RF, RF_IF), rd_rm),
9331 cCL(urds, ee08100, 2, (RF, RF_IF), rd_rm),
9332 cCL(urdsp, ee08120, 2, (RF, RF_IF), rd_rm),
9333 cCL(urdsm, ee08140, 2, (RF, RF_IF), rd_rm),
9334 cCL(urdsz, ee08160, 2, (RF, RF_IF), rd_rm),
9335 cCL(urdd, ee08180, 2, (RF, RF_IF), rd_rm),
9336 cCL(urddp, ee081a0, 2, (RF, RF_IF), rd_rm),
9337 cCL(urddm, ee081c0, 2, (RF, RF_IF), rd_rm),
9338 cCL(urddz, ee081e0, 2, (RF, RF_IF), rd_rm),
9339 cCL(urde, ee88100, 2, (RF, RF_IF), rd_rm),
9340 cCL(urdep, ee88120, 2, (RF, RF_IF), rd_rm),
9341 cCL(urdem, ee88140, 2, (RF, RF_IF), rd_rm),
9342 cCL(urdez, ee88160, 2, (RF, RF_IF), rd_rm),
9344 cCL(nrms, ef08100, 2, (RF, RF_IF), rd_rm),
9345 cCL(nrmsp, ef08120, 2, (RF, RF_IF), rd_rm),
9346 cCL(nrmsm, ef08140, 2, (RF, RF_IF), rd_rm),
9347 cCL(nrmsz, ef08160, 2, (RF, RF_IF), rd_rm),
9348 cCL(nrmd, ef08180, 2, (RF, RF_IF), rd_rm),
9349 cCL(nrmdp, ef081a0, 2, (RF, RF_IF), rd_rm),
9350 cCL(nrmdm, ef081c0, 2, (RF, RF_IF), rd_rm),
9351 cCL(nrmdz, ef081e0, 2, (RF, RF_IF), rd_rm),
9352 cCL(nrme, ef88100, 2, (RF, RF_IF), rd_rm),
9353 cCL(nrmep, ef88120, 2, (RF, RF_IF), rd_rm),
9354 cCL(nrmem, ef88140, 2, (RF, RF_IF), rd_rm),
9355 cCL(nrmez, ef88160, 2, (RF, RF_IF), rd_rm),
9357 cCL(adfs, e000100, 3, (RF, RF, RF_IF), rd_rn_rm),
9358 cCL(adfsp, e000120, 3, (RF, RF, RF_IF), rd_rn_rm),
9359 cCL(adfsm, e000140, 3, (RF, RF, RF_IF), rd_rn_rm),
9360 cCL(adfsz, e000160, 3, (RF, RF, RF_IF), rd_rn_rm),
9361 cCL(adfd, e000180, 3, (RF, RF, RF_IF), rd_rn_rm),
9362 cCL(adfdp, e0001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
9363 cCL(adfdm, e0001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
9364 cCL(adfdz, e0001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
9365 cCL(adfe, e080100, 3, (RF, RF, RF_IF), rd_rn_rm),
9366 cCL(adfep, e080120, 3, (RF, RF, RF_IF), rd_rn_rm),
9367 cCL(adfem, e080140, 3, (RF, RF, RF_IF), rd_rn_rm),
9368 cCL(adfez, e080160, 3, (RF, RF, RF_IF), rd_rn_rm),
9370 cCL(sufs, e200100, 3, (RF, RF, RF_IF), rd_rn_rm),
9371 cCL(sufsp, e200120, 3, (RF, RF, RF_IF), rd_rn_rm),
9372 cCL(sufsm, e200140, 3, (RF, RF, RF_IF), rd_rn_rm),
9373 cCL(sufsz, e200160, 3, (RF, RF, RF_IF), rd_rn_rm),
9374 cCL(sufd, e200180, 3, (RF, RF, RF_IF), rd_rn_rm),
9375 cCL(sufdp, e2001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
9376 cCL(sufdm, e2001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
9377 cCL(sufdz, e2001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
9378 cCL(sufe, e280100, 3, (RF, RF, RF_IF), rd_rn_rm),
9379 cCL(sufep, e280120, 3, (RF, RF, RF_IF), rd_rn_rm),
9380 cCL(sufem, e280140, 3, (RF, RF, RF_IF), rd_rn_rm),
9381 cCL(sufez, e280160, 3, (RF, RF, RF_IF), rd_rn_rm),
9383 cCL(rsfs, e300100, 3, (RF, RF, RF_IF), rd_rn_rm),
9384 cCL(rsfsp, e300120, 3, (RF, RF, RF_IF), rd_rn_rm),
9385 cCL(rsfsm, e300140, 3, (RF, RF, RF_IF), rd_rn_rm),
9386 cCL(rsfsz, e300160, 3, (RF, RF, RF_IF), rd_rn_rm),
9387 cCL(rsfd, e300180, 3, (RF, RF, RF_IF), rd_rn_rm),
9388 cCL(rsfdp, e3001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
9389 cCL(rsfdm, e3001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
9390 cCL(rsfdz, e3001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
9391 cCL(rsfe, e380100, 3, (RF, RF, RF_IF), rd_rn_rm),
9392 cCL(rsfep, e380120, 3, (RF, RF, RF_IF), rd_rn_rm),
9393 cCL(rsfem, e380140, 3, (RF, RF, RF_IF), rd_rn_rm),
9394 cCL(rsfez, e380160, 3, (RF, RF, RF_IF), rd_rn_rm),
9396 cCL(mufs, e100100, 3, (RF, RF, RF_IF), rd_rn_rm),
9397 cCL(mufsp, e100120, 3, (RF, RF, RF_IF), rd_rn_rm),
9398 cCL(mufsm, e100140, 3, (RF, RF, RF_IF), rd_rn_rm),
9399 cCL(mufsz, e100160, 3, (RF, RF, RF_IF), rd_rn_rm),
9400 cCL(mufd, e100180, 3, (RF, RF, RF_IF), rd_rn_rm),
9401 cCL(mufdp, e1001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
9402 cCL(mufdm, e1001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
9403 cCL(mufdz, e1001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
9404 cCL(mufe, e180100, 3, (RF, RF, RF_IF), rd_rn_rm),
9405 cCL(mufep, e180120, 3, (RF, RF, RF_IF), rd_rn_rm),
9406 cCL(mufem, e180140, 3, (RF, RF, RF_IF), rd_rn_rm),
9407 cCL(mufez, e180160, 3, (RF, RF, RF_IF), rd_rn_rm),
9409 cCL(dvfs, e400100, 3, (RF, RF, RF_IF), rd_rn_rm),
9410 cCL(dvfsp, e400120, 3, (RF, RF, RF_IF), rd_rn_rm),
9411 cCL(dvfsm, e400140, 3, (RF, RF, RF_IF), rd_rn_rm),
9412 cCL(dvfsz, e400160, 3, (RF, RF, RF_IF), rd_rn_rm),
9413 cCL(dvfd, e400180, 3, (RF, RF, RF_IF), rd_rn_rm),
9414 cCL(dvfdp, e4001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
9415 cCL(dvfdm, e4001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
9416 cCL(dvfdz, e4001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
9417 cCL(dvfe, e480100, 3, (RF, RF, RF_IF), rd_rn_rm),
9418 cCL(dvfep, e480120, 3, (RF, RF, RF_IF), rd_rn_rm),
9419 cCL(dvfem, e480140, 3, (RF, RF, RF_IF), rd_rn_rm),
9420 cCL(dvfez, e480160, 3, (RF, RF, RF_IF), rd_rn_rm),
9422 cCL(rdfs, e500100, 3, (RF, RF, RF_IF), rd_rn_rm),
9423 cCL(rdfsp, e500120, 3, (RF, RF, RF_IF), rd_rn_rm),
9424 cCL(rdfsm, e500140, 3, (RF, RF, RF_IF), rd_rn_rm),
9425 cCL(rdfsz, e500160, 3, (RF, RF, RF_IF), rd_rn_rm),
9426 cCL(rdfd, e500180, 3, (RF, RF, RF_IF), rd_rn_rm),
9427 cCL(rdfdp, e5001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
9428 cCL(rdfdm, e5001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
9429 cCL(rdfdz, e5001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
9430 cCL(rdfe, e580100, 3, (RF, RF, RF_IF), rd_rn_rm),
9431 cCL(rdfep, e580120, 3, (RF, RF, RF_IF), rd_rn_rm),
9432 cCL(rdfem, e580140, 3, (RF, RF, RF_IF), rd_rn_rm),
9433 cCL(rdfez, e580160, 3, (RF, RF, RF_IF), rd_rn_rm),
9435 cCL(pows, e600100, 3, (RF, RF, RF_IF), rd_rn_rm),
9436 cCL(powsp, e600120, 3, (RF, RF, RF_IF), rd_rn_rm),
9437 cCL(powsm, e600140, 3, (RF, RF, RF_IF), rd_rn_rm),
9438 cCL(powsz, e600160, 3, (RF, RF, RF_IF), rd_rn_rm),
9439 cCL(powd, e600180, 3, (RF, RF, RF_IF), rd_rn_rm),
9440 cCL(powdp, e6001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
9441 cCL(powdm, e6001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
9442 cCL(powdz, e6001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
9443 cCL(powe, e680100, 3, (RF, RF, RF_IF), rd_rn_rm),
9444 cCL(powep, e680120, 3, (RF, RF, RF_IF), rd_rn_rm),
9445 cCL(powem, e680140, 3, (RF, RF, RF_IF), rd_rn_rm),
9446 cCL(powez, e680160, 3, (RF, RF, RF_IF), rd_rn_rm),
9448 cCL(rpws, e700100, 3, (RF, RF, RF_IF), rd_rn_rm),
9449 cCL(rpwsp, e700120, 3, (RF, RF, RF_IF), rd_rn_rm),
9450 cCL(rpwsm, e700140, 3, (RF, RF, RF_IF), rd_rn_rm),
9451 cCL(rpwsz, e700160, 3, (RF, RF, RF_IF), rd_rn_rm),
9452 cCL(rpwd, e700180, 3, (RF, RF, RF_IF), rd_rn_rm),
9453 cCL(rpwdp, e7001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
9454 cCL(rpwdm, e7001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
9455 cCL(rpwdz, e7001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
9456 cCL(rpwe, e780100, 3, (RF, RF, RF_IF), rd_rn_rm),
9457 cCL(rpwep, e780120, 3, (RF, RF, RF_IF), rd_rn_rm),
9458 cCL(rpwem, e780140, 3, (RF, RF, RF_IF), rd_rn_rm),
9459 cCL(rpwez, e780160, 3, (RF, RF, RF_IF), rd_rn_rm),
9461 cCL(rmfs, e800100, 3, (RF, RF, RF_IF), rd_rn_rm),
9462 cCL(rmfsp, e800120, 3, (RF, RF, RF_IF), rd_rn_rm),
9463 cCL(rmfsm, e800140, 3, (RF, RF, RF_IF), rd_rn_rm),
9464 cCL(rmfsz, e800160, 3, (RF, RF, RF_IF), rd_rn_rm),
9465 cCL(rmfd, e800180, 3, (RF, RF, RF_IF), rd_rn_rm),
9466 cCL(rmfdp, e8001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
9467 cCL(rmfdm, e8001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
9468 cCL(rmfdz, e8001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
9469 cCL(rmfe, e880100, 3, (RF, RF, RF_IF), rd_rn_rm),
9470 cCL(rmfep, e880120, 3, (RF, RF, RF_IF), rd_rn_rm),
9471 cCL(rmfem, e880140, 3, (RF, RF, RF_IF), rd_rn_rm),
9472 cCL(rmfez, e880160, 3, (RF, RF, RF_IF), rd_rn_rm),
9474 cCL(fmls, e900100, 3, (RF, RF, RF_IF), rd_rn_rm),
9475 cCL(fmlsp, e900120, 3, (RF, RF, RF_IF), rd_rn_rm),
9476 cCL(fmlsm, e900140, 3, (RF, RF, RF_IF), rd_rn_rm),
9477 cCL(fmlsz, e900160, 3, (RF, RF, RF_IF), rd_rn_rm),
9478 cCL(fmld, e900180, 3, (RF, RF, RF_IF), rd_rn_rm),
9479 cCL(fmldp, e9001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
9480 cCL(fmldm, e9001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
9481 cCL(fmldz, e9001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
9482 cCL(fmle, e980100, 3, (RF, RF, RF_IF), rd_rn_rm),
9483 cCL(fmlep, e980120, 3, (RF, RF, RF_IF), rd_rn_rm),
9484 cCL(fmlem, e980140, 3, (RF, RF, RF_IF), rd_rn_rm),
9485 cCL(fmlez, e980160, 3, (RF, RF, RF_IF), rd_rn_rm),
9487 cCL(fdvs, ea00100, 3, (RF, RF, RF_IF), rd_rn_rm),
9488 cCL(fdvsp, ea00120, 3, (RF, RF, RF_IF), rd_rn_rm),
9489 cCL(fdvsm, ea00140, 3, (RF, RF, RF_IF), rd_rn_rm),
9490 cCL(fdvsz, ea00160, 3, (RF, RF, RF_IF), rd_rn_rm),
9491 cCL(fdvd, ea00180, 3, (RF, RF, RF_IF), rd_rn_rm),
9492 cCL(fdvdp, ea001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
9493 cCL(fdvdm, ea001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
9494 cCL(fdvdz, ea001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
9495 cCL(fdve, ea80100, 3, (RF, RF, RF_IF), rd_rn_rm),
9496 cCL(fdvep, ea80120, 3, (RF, RF, RF_IF), rd_rn_rm),
9497 cCL(fdvem, ea80140, 3, (RF, RF, RF_IF), rd_rn_rm),
9498 cCL(fdvez, ea80160, 3, (RF, RF, RF_IF), rd_rn_rm),
9500 cCL(frds, eb00100, 3, (RF, RF, RF_IF), rd_rn_rm),
9501 cCL(frdsp, eb00120, 3, (RF, RF, RF_IF), rd_rn_rm),
9502 cCL(frdsm, eb00140, 3, (RF, RF, RF_IF), rd_rn_rm),
9503 cCL(frdsz, eb00160, 3, (RF, RF, RF_IF), rd_rn_rm),
9504 cCL(frdd, eb00180, 3, (RF, RF, RF_IF), rd_rn_rm),
9505 cCL(frddp, eb001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
9506 cCL(frddm, eb001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
9507 cCL(frddz, eb001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
9508 cCL(frde, eb80100, 3, (RF, RF, RF_IF), rd_rn_rm),
9509 cCL(frdep, eb80120, 3, (RF, RF, RF_IF), rd_rn_rm),
9510 cCL(frdem, eb80140, 3, (RF, RF, RF_IF), rd_rn_rm),
9511 cCL(frdez, eb80160, 3, (RF, RF, RF_IF), rd_rn_rm),
9513 cCL(pols, ec00100, 3, (RF, RF, RF_IF), rd_rn_rm),
9514 cCL(polsp, ec00120, 3, (RF, RF, RF_IF), rd_rn_rm),
9515 cCL(polsm, ec00140, 3, (RF, RF, RF_IF), rd_rn_rm),
9516 cCL(polsz, ec00160, 3, (RF, RF, RF_IF), rd_rn_rm),
9517 cCL(pold, ec00180, 3, (RF, RF, RF_IF), rd_rn_rm),
9518 cCL(poldp, ec001a0, 3, (RF, RF, RF_IF), rd_rn_rm),
9519 cCL(poldm, ec001c0, 3, (RF, RF, RF_IF), rd_rn_rm),
9520 cCL(poldz, ec001e0, 3, (RF, RF, RF_IF), rd_rn_rm),
9521 cCL(pole, ec80100, 3, (RF, RF, RF_IF), rd_rn_rm),
9522 cCL(polep, ec80120, 3, (RF, RF, RF_IF), rd_rn_rm),
9523 cCL(polem, ec80140, 3, (RF, RF, RF_IF), rd_rn_rm),
9524 cCL(polez, ec80160, 3, (RF, RF, RF_IF), rd_rn_rm),
9526 cCE(cmf, e90f110, 2, (RF, RF_IF), fpa_cmp),
9527 C3E(cmfe, ed0f110, 2, (RF, RF_IF), fpa_cmp),
9528 cCE(cnf, eb0f110, 2, (RF, RF_IF), fpa_cmp),
9529 C3E(cnfe, ef0f110, 2, (RF, RF_IF), fpa_cmp),
9531 cCL(flts, e000110, 2, (RF, RR), rn_rd),
9532 cCL(fltsp, e000130, 2, (RF, RR), rn_rd),
9533 cCL(fltsm, e000150, 2, (RF, RR), rn_rd),
9534 cCL(fltsz, e000170, 2, (RF, RR), rn_rd),
9535 cCL(fltd, e000190, 2, (RF, RR), rn_rd),
9536 cCL(fltdp, e0001b0, 2, (RF, RR), rn_rd),
9537 cCL(fltdm, e0001d0, 2, (RF, RR), rn_rd),
9538 cCL(fltdz, e0001f0, 2, (RF, RR), rn_rd),
9539 cCL(flte, e080110, 2, (RF, RR), rn_rd),
9540 cCL(fltep, e080130, 2, (RF, RR), rn_rd),
9541 cCL(fltem, e080150, 2, (RF, RR), rn_rd),
9542 cCL(fltez, e080170, 2, (RF, RR), rn_rd),
9544 /* The implementation of the FIX instruction is broken on some
9545 assemblers, in that it accepts a precision specifier as well as a
9546 rounding specifier, despite the fact that this is meaningless.
9547 To be more compatible, we accept it as well, though of course it
9548 does not set any bits. */
9549 cCE(fix, e100110, 2, (RR, RF), rd_rm),
9550 cCL(fixp, e100130, 2, (RR, RF), rd_rm),
9551 cCL(fixm, e100150, 2, (RR, RF), rd_rm),
9552 cCL(fixz, e100170, 2, (RR, RF), rd_rm),
9553 cCL(fixsp, e100130, 2, (RR, RF), rd_rm),
9554 cCL(fixsm, e100150, 2, (RR, RF), rd_rm),
9555 cCL(fixsz, e100170, 2, (RR, RF), rd_rm),
9556 cCL(fixdp, e100130, 2, (RR, RF), rd_rm),
9557 cCL(fixdm, e100150, 2, (RR, RF), rd_rm),
9558 cCL(fixdz, e100170, 2, (RR, RF), rd_rm),
9559 cCL(fixep, e100130, 2, (RR, RF), rd_rm),
9560 cCL(fixem, e100150, 2, (RR, RF), rd_rm),
9561 cCL(fixez, e100170, 2, (RR, RF), rd_rm),
9563 /* Instructions that were new with the real FPA, call them V2. */
9565 #define ARM_VARIANT &fpu_fpa_ext_v2
9566 cCE(lfm, c100200, 3, (RF, I4b, ADDR), fpa_ldmstm),
9567 cCL(lfmfd, c900200, 3, (RF, I4b, ADDR), fpa_ldmstm),
9568 cCL(lfmea, d100200, 3, (RF, I4b, ADDR), fpa_ldmstm),
9569 cCE(sfm, c000200, 3, (RF, I4b, ADDR), fpa_ldmstm),
9570 cCL(sfmfd, d000200, 3, (RF, I4b, ADDR), fpa_ldmstm),
9571 cCL(sfmea, c800200, 3, (RF, I4b, ADDR), fpa_ldmstm),
9574 #define ARM_VARIANT &fpu_vfp_ext_v1xd /* VFP V1xD (single precision). */
9575 /* Moves and type conversions. */
9576 cCE(fcpys, eb00a40, 2, (RVS, RVS), vfp_sp_monadic),
9577 cCE(fmrs, e100a10, 2, (RR, RVS), vfp_reg_from_sp),
9578 cCE(fmsr, e000a10, 2, (RVS, RR), vfp_sp_from_reg),
9579 cCE(fmstat, ef1fa10, 0, (), noargs),
9580 cCE(fsitos, eb80ac0, 2, (RVS, RVS), vfp_sp_monadic),
9581 cCE(fuitos, eb80a40, 2, (RVS, RVS), vfp_sp_monadic),
9582 cCE(ftosis, ebd0a40, 2, (RVS, RVS), vfp_sp_monadic),
9583 cCE(ftosizs, ebd0ac0, 2, (RVS, RVS), vfp_sp_monadic),
9584 cCE(ftouis, ebc0a40, 2, (RVS, RVS), vfp_sp_monadic),
9585 cCE(ftouizs, ebc0ac0, 2, (RVS, RVS), vfp_sp_monadic),
9586 cCE(fmrx, ef00a10, 2, (RR, RVC), rd_rn),
9587 cCE(fmxr, ee00a10, 2, (RVC, RR), rn_rd),
9589 /* Memory operations. */
9590 cCE(flds, d100a00, 2, (RVS, ADDR), vfp_sp_ldst),
9591 cCE(fsts, d000a00, 2, (RVS, ADDR), vfp_sp_ldst),
9592 cCE(fldmias, c900a00, 2, (RRw, VRSLST), vfp_sp_ldstmia),
9593 cCE(fldmfds, c900a00, 2, (RRw, VRSLST), vfp_sp_ldstmia),
9594 cCE(fldmdbs, d300a00, 2, (RRw, VRSLST), vfp_sp_ldstmdb),
9595 cCE(fldmeas, d300a00, 2, (RRw, VRSLST), vfp_sp_ldstmdb),
9596 cCE(fldmiax, c900b00, 2, (RRw, VRDLST), vfp_xp_ldstmia),
9597 cCE(fldmfdx, c900b00, 2, (RRw, VRDLST), vfp_xp_ldstmia),
9598 cCE(fldmdbx, d300b00, 2, (RRw, VRDLST), vfp_xp_ldstmdb),
9599 cCE(fldmeax, d300b00, 2, (RRw, VRDLST), vfp_xp_ldstmdb),
9600 cCE(fstmias, c800a00, 2, (RRw, VRSLST), vfp_sp_ldstmia),
9601 cCE(fstmeas, c800a00, 2, (RRw, VRSLST), vfp_sp_ldstmia),
9602 cCE(fstmdbs, d200a00, 2, (RRw, VRSLST), vfp_sp_ldstmdb),
9603 cCE(fstmfds, d200a00, 2, (RRw, VRSLST), vfp_sp_ldstmdb),
9604 cCE(fstmiax, c800b00, 2, (RRw, VRDLST), vfp_xp_ldstmia),
9605 cCE(fstmeax, c800b00, 2, (RRw, VRDLST), vfp_xp_ldstmia),
9606 cCE(fstmdbx, d200b00, 2, (RRw, VRDLST), vfp_xp_ldstmdb),
9607 cCE(fstmfdx, d200b00, 2, (RRw, VRDLST), vfp_xp_ldstmdb),
9609 /* Monadic operations. */
9610 cCE(fabss, eb00ac0, 2, (RVS, RVS), vfp_sp_monadic),
9611 cCE(fnegs, eb10a40, 2, (RVS, RVS), vfp_sp_monadic),
9612 cCE(fsqrts, eb10ac0, 2, (RVS, RVS), vfp_sp_monadic),
9614 /* Dyadic operations. */
9615 cCE(fadds, e300a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
9616 cCE(fsubs, e300a40, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
9617 cCE(fmuls, e200a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
9618 cCE(fdivs, e800a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
9619 cCE(fmacs, e000a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
9620 cCE(fmscs, e100a00, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
9621 cCE(fnmuls, e200a40, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
9622 cCE(fnmacs, e000a40, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
9623 cCE(fnmscs, e100a40, 3, (RVS, RVS, RVS), vfp_sp_dyadic),
9626 cCE(fcmps, eb40a40, 2, (RVS, RVS), vfp_sp_monadic),
9627 cCE(fcmpzs, eb50a40, 1, (RVS), vfp_sp_compare_z),
9628 cCE(fcmpes, eb40ac0, 2, (RVS, RVS), vfp_sp_monadic),
9629 cCE(fcmpezs, eb50ac0, 1, (RVS), vfp_sp_compare_z),
9632 #define ARM_VARIANT &fpu_vfp_ext_v1 /* VFP V1 (Double precision). */
9633 /* Moves and type conversions. */
9634 cCE(fcpyd, eb00b40, 2, (RVD, RVD), rd_rm),
9635 cCE(fcvtds, eb70ac0, 2, (RVD, RVS), vfp_dp_sp_cvt),
9636 cCE(fcvtsd, eb70bc0, 2, (RVS, RVD), vfp_sp_dp_cvt),
9637 cCE(fmdhr, e200b10, 2, (RVD, RR), rn_rd),
9638 cCE(fmdlr, e000b10, 2, (RVD, RR), rn_rd),
9639 cCE(fmrdh, e300b10, 2, (RR, RVD), rd_rn),
9640 cCE(fmrdl, e100b10, 2, (RR, RVD), rd_rn),
9641 cCE(fsitod, eb80bc0, 2, (RVD, RVS), vfp_dp_sp_cvt),
9642 cCE(fuitod, eb80b40, 2, (RVD, RVS), vfp_dp_sp_cvt),
9643 cCE(ftosid, ebd0b40, 2, (RVS, RVD), vfp_sp_dp_cvt),
9644 cCE(ftosizd, ebd0bc0, 2, (RVS, RVD), vfp_sp_dp_cvt),
9645 cCE(ftouid, ebc0b40, 2, (RVS, RVD), vfp_sp_dp_cvt),
9646 cCE(ftouizd, ebc0bc0, 2, (RVS, RVD), vfp_sp_dp_cvt),
9648 /* Memory operations. */
9649 cCE(fldd, d100b00, 2, (RVD, ADDR), vfp_dp_ldst),
9650 cCE(fstd, d000b00, 2, (RVD, ADDR), vfp_dp_ldst),
9651 cCE(fldmiad, c900b00, 2, (RRw, VRDLST), vfp_dp_ldstmia),
9652 cCE(fldmfdd, c900b00, 2, (RRw, VRDLST), vfp_dp_ldstmia),
9653 cCE(fldmdbd, d300b00, 2, (RRw, VRDLST), vfp_dp_ldstmdb),
9654 cCE(fldmead, d300b00, 2, (RRw, VRDLST), vfp_dp_ldstmdb),
9655 cCE(fstmiad, c800b00, 2, (RRw, VRDLST), vfp_dp_ldstmia),
9656 cCE(fstmead, c800b00, 2, (RRw, VRDLST), vfp_dp_ldstmia),
9657 cCE(fstmdbd, d200b00, 2, (RRw, VRDLST), vfp_dp_ldstmdb),
9658 cCE(fstmfdd, d200b00, 2, (RRw, VRDLST), vfp_dp_ldstmdb),
9660 /* Monadic operations. */
9661 cCE(fabsd, eb00bc0, 2, (RVD, RVD), rd_rm),
9662 cCE(fnegd, eb10b40, 2, (RVD, RVD), rd_rm),
9663 cCE(fsqrtd, eb10bc0, 2, (RVD, RVD), rd_rm),
9665 /* Dyadic operations. */
9666 cCE(faddd, e300b00, 3, (RVD, RVD, RVD), rd_rn_rm),
9667 cCE(fsubd, e300b40, 3, (RVD, RVD, RVD), rd_rn_rm),
9668 cCE(fmuld, e200b00, 3, (RVD, RVD, RVD), rd_rn_rm),
9669 cCE(fdivd, e800b00, 3, (RVD, RVD, RVD), rd_rn_rm),
9670 cCE(fmacd, e000b00, 3, (RVD, RVD, RVD), rd_rn_rm),
9671 cCE(fmscd, e100b00, 3, (RVD, RVD, RVD), rd_rn_rm),
9672 cCE(fnmuld, e200b40, 3, (RVD, RVD, RVD), rd_rn_rm),
9673 cCE(fnmacd, e000b40, 3, (RVD, RVD, RVD), rd_rn_rm),
9674 cCE(fnmscd, e100b40, 3, (RVD, RVD, RVD), rd_rn_rm),
9677 cCE(fcmpd, eb40b40, 2, (RVD, RVD), rd_rm),
9678 cCE(fcmpzd, eb50b40, 1, (RVD), rd),
9679 cCE(fcmped, eb40bc0, 2, (RVD, RVD), rd_rm),
9680 cCE(fcmpezd, eb50bc0, 1, (RVD), rd),
9683 #define ARM_VARIANT &fpu_vfp_ext_v2
9684 cCE(fmsrr, c400a10, 3, (VRSLST, RR, RR), vfp_sp2_from_reg2),
9685 cCE(fmrrs, c500a10, 3, (RR, RR, VRSLST), vfp_reg2_from_sp2),
9686 cCE(fmdrr, c400b10, 3, (RVD, RR, RR), rm_rd_rn),
9687 cCE(fmrrd, c500b10, 3, (RR, RR, RVD), rd_rn_rm),
9690 #define ARM_VARIANT &arm_cext_xscale /* Intel XScale extensions. */
9691 cCE(mia, e200010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
9692 cCE(miaph, e280010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
9693 cCE(miabb, e2c0010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
9694 cCE(miabt, e2d0010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
9695 cCE(miatb, e2e0010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
9696 cCE(miatt, e2f0010, 3, (RXA, RRnpc, RRnpc), xsc_mia),
9697 cCE(mar, c400000, 3, (RXA, RRnpc, RRnpc), xsc_mar),
9698 cCE(mra, c500000, 3, (RRnpc, RRnpc, RXA), xsc_mra),
9701 #define ARM_VARIANT &arm_cext_iwmmxt /* Intel Wireless MMX technology. */
9702 cCE(tandcb, e13f130, 1, (RR), iwmmxt_tandorc),
9703 cCE(tandch, e53f130, 1, (RR), iwmmxt_tandorc),
9704 cCE(tandcw, e93f130, 1, (RR), iwmmxt_tandorc),
9705 cCE(tbcstb, e400010, 2, (RIWR, RR), rn_rd),
9706 cCE(tbcsth, e400050, 2, (RIWR, RR), rn_rd),
9707 cCE(tbcstw, e400090, 2, (RIWR, RR), rn_rd),
9708 cCE(textrcb, e130170, 2, (RR, I7), iwmmxt_textrc),
9709 cCE(textrch, e530170, 2, (RR, I7), iwmmxt_textrc),
9710 cCE(textrcw, e930170, 2, (RR, I7), iwmmxt_textrc),
9711 cCE(textrmub, e100070, 3, (RR, RIWR, I7), iwmmxt_textrm),
9712 cCE(textrmuh, e500070, 3, (RR, RIWR, I7), iwmmxt_textrm),
9713 cCE(textrmuw, e900070, 3, (RR, RIWR, I7), iwmmxt_textrm),
9714 cCE(textrmsb, e100078, 3, (RR, RIWR, I7), iwmmxt_textrm),
9715 cCE(textrmsh, e500078, 3, (RR, RIWR, I7), iwmmxt_textrm),
9716 cCE(textrmsw, e900078, 3, (RR, RIWR, I7), iwmmxt_textrm),
9717 cCE(tinsrb, e600010, 3, (RIWR, RR, I7), iwmmxt_tinsr),
9718 cCE(tinsrh, e600050, 3, (RIWR, RR, I7), iwmmxt_tinsr),
9719 cCE(tinsrw, e600090, 3, (RIWR, RR, I7), iwmmxt_tinsr),
9720 cCE(tmcr, e000110, 2, (RIWC, RR), rn_rd),
9721 cCE(tmcrr, c400000, 3, (RIWR, RR, RR), rm_rd_rn),
9722 cCE(tmia, e200010, 3, (RIWR, RR, RR), iwmmxt_tmia),
9723 cCE(tmiaph, e280010, 3, (RIWR, RR, RR), iwmmxt_tmia),
9724 cCE(tmiabb, e2c0010, 3, (RIWR, RR, RR), iwmmxt_tmia),
9725 cCE(tmiabt, e2d0010, 3, (RIWR, RR, RR), iwmmxt_tmia),
9726 cCE(tmiatb, e2e0010, 3, (RIWR, RR, RR), iwmmxt_tmia),
9727 cCE(tmiatt, e2f0010, 3, (RIWR, RR, RR), iwmmxt_tmia),
9728 cCE(tmovmskb, e100030, 2, (RR, RIWR), rd_rn),
9729 cCE(tmovmskh, e500030, 2, (RR, RIWR), rd_rn),
9730 cCE(tmovmskw, e900030, 2, (RR, RIWR), rd_rn),
9731 cCE(tmrc, e100110, 2, (RR, RIWC), rd_rn),
9732 cCE(tmrrc, c500000, 3, (RR, RR, RIWR), rd_rn_rm),
9733 cCE(torcb, e13f150, 1, (RR), iwmmxt_tandorc),
9734 cCE(torch, e53f150, 1, (RR), iwmmxt_tandorc),
9735 cCE(torcw, e93f150, 1, (RR), iwmmxt_tandorc),
9736 cCE(waccb, e0001c0, 2, (RIWR, RIWR), rd_rn),
9737 cCE(wacch, e4001c0, 2, (RIWR, RIWR), rd_rn),
9738 cCE(waccw, e8001c0, 2, (RIWR, RIWR), rd_rn),
9739 cCE(waddbss, e300180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9740 cCE(waddb, e000180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9741 cCE(waddbus, e100180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9742 cCE(waddhss, e700180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9743 cCE(waddh, e400180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9744 cCE(waddhus, e500180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9745 cCE(waddwss, eb00180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9746 cCE(waddw, e800180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9747 cCE(waddwus, e900180, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9748 cCE(waligni, e000020, 4, (RIWR, RIWR, RIWR, I7), iwmmxt_waligni),
9749 cCE(walignr0, e800020, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9750 cCE(walignr1, e900020, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9751 cCE(walignr2, ea00020, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9752 cCE(walignr3, eb00020, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9753 cCE(wand, e200000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9754 cCE(wandn, e300000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9755 cCE(wavg2b, e800000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9756 cCE(wavg2br, e900000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9757 cCE(wavg2h, ec00000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9758 cCE(wavg2hr, ed00000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9759 cCE(wcmpeqb, e000060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9760 cCE(wcmpeqh, e400060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9761 cCE(wcmpeqw, e800060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9762 cCE(wcmpgtub, e100060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9763 cCE(wcmpgtuh, e500060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9764 cCE(wcmpgtuw, e900060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9765 cCE(wcmpgtsb, e300060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9766 cCE(wcmpgtsh, e700060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9767 cCE(wcmpgtsw, eb00060, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9768 cCE(wldrb, c100000, 2, (RIWR, ADDR), iwmmxt_wldstbh),
9769 cCE(wldrh, c500000, 2, (RIWR, ADDR), iwmmxt_wldstbh),
9770 cCE(wldrw, c100100, 2, (RIWR_RIWC, ADDR), iwmmxt_wldstw),
9771 cCE(wldrd, c500100, 2, (RIWR, ADDR), iwmmxt_wldstd),
9772 cCE(wmacs, e600100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9773 cCE(wmacsz, e700100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9774 cCE(wmacu, e400100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9775 cCE(wmacuz, e500100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9776 cCE(wmadds, ea00100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9777 cCE(wmaddu, e800100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9778 cCE(wmaxsb, e200160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9779 cCE(wmaxsh, e600160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9780 cCE(wmaxsw, ea00160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9781 cCE(wmaxub, e000160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9782 cCE(wmaxuh, e400160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9783 cCE(wmaxuw, e800160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9784 cCE(wminsb, e300160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9785 cCE(wminsh, e700160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9786 cCE(wminsw, eb00160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9787 cCE(wminub, e100160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9788 cCE(wminuh, e500160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9789 cCE(wminuw, e900160, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9790 cCE(wmov, e000000, 2, (RIWR, RIWR), iwmmxt_wmov),
9791 cCE(wmulsm, e300100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9792 cCE(wmulsl, e200100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9793 cCE(wmulum, e100100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9794 cCE(wmulul, e000100, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9795 cCE(wor, e000000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9796 cCE(wpackhss, e700080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9797 cCE(wpackhus, e500080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9798 cCE(wpackwss, eb00080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9799 cCE(wpackwus, e900080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9800 cCE(wpackdss, ef00080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9801 cCE(wpackdus, ed00080, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9802 cCE(wrorh, e700040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9803 cCE(wrorhg, e700148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
9804 cCE(wrorw, eb00040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9805 cCE(wrorwg, eb00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
9806 cCE(wrord, ef00040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9807 cCE(wrordg, ef00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
9808 cCE(wsadb, e000120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9809 cCE(wsadbz, e100120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9810 cCE(wsadh, e400120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9811 cCE(wsadhz, e500120, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9812 cCE(wshufh, e0001e0, 3, (RIWR, RIWR, I255), iwmmxt_wshufh),
9813 cCE(wsllh, e500040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9814 cCE(wsllhg, e500148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
9815 cCE(wsllw, e900040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9816 cCE(wsllwg, e900148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
9817 cCE(wslld, ed00040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9818 cCE(wslldg, ed00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
9819 cCE(wsrah, e400040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9820 cCE(wsrahg, e400148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
9821 cCE(wsraw, e800040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9822 cCE(wsrawg, e800148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
9823 cCE(wsrad, ec00040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9824 cCE(wsradg, ec00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
9825 cCE(wsrlh, e600040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9826 cCE(wsrlhg, e600148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
9827 cCE(wsrlw, ea00040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9828 cCE(wsrlwg, ea00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
9829 cCE(wsrld, ee00040, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9830 cCE(wsrldg, ee00148, 3, (RIWR, RIWR, RIWG), rd_rn_rm),
9831 cCE(wstrb, c000000, 2, (RIWR, ADDR), iwmmxt_wldstbh),
9832 cCE(wstrh, c400000, 2, (RIWR, ADDR), iwmmxt_wldstbh),
9833 cCE(wstrw, c000100, 2, (RIWR_RIWC, ADDR), iwmmxt_wldstw),
9834 cCE(wstrd, c400100, 2, (RIWR, ADDR), iwmmxt_wldstd),
9835 cCE(wsubbss, e3001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9836 cCE(wsubb, e0001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9837 cCE(wsubbus, e1001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9838 cCE(wsubhss, e7001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9839 cCE(wsubh, e4001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9840 cCE(wsubhus, e5001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9841 cCE(wsubwss, eb001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9842 cCE(wsubw, e8001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9843 cCE(wsubwus, e9001a0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9844 cCE(wunpckehub,e0000c0, 2, (RIWR, RIWR), rd_rn),
9845 cCE(wunpckehuh,e4000c0, 2, (RIWR, RIWR), rd_rn),
9846 cCE(wunpckehuw,e8000c0, 2, (RIWR, RIWR), rd_rn),
9847 cCE(wunpckehsb,e2000c0, 2, (RIWR, RIWR), rd_rn),
9848 cCE(wunpckehsh,e6000c0, 2, (RIWR, RIWR), rd_rn),
9849 cCE(wunpckehsw,ea000c0, 2, (RIWR, RIWR), rd_rn),
9850 cCE(wunpckihb, e1000c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9851 cCE(wunpckihh, e5000c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9852 cCE(wunpckihw, e9000c0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9853 cCE(wunpckelub,e0000e0, 2, (RIWR, RIWR), rd_rn),
9854 cCE(wunpckeluh,e4000e0, 2, (RIWR, RIWR), rd_rn),
9855 cCE(wunpckeluw,e8000e0, 2, (RIWR, RIWR), rd_rn),
9856 cCE(wunpckelsb,e2000e0, 2, (RIWR, RIWR), rd_rn),
9857 cCE(wunpckelsh,e6000e0, 2, (RIWR, RIWR), rd_rn),
9858 cCE(wunpckelsw,ea000e0, 2, (RIWR, RIWR), rd_rn),
9859 cCE(wunpckilb, e1000e0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9860 cCE(wunpckilh, e5000e0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9861 cCE(wunpckilw, e9000e0, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9862 cCE(wxor, e100000, 3, (RIWR, RIWR, RIWR), rd_rn_rm),
9863 cCE(wzero, e300000, 1, (RIWR), iwmmxt_wzero),
9866 #define ARM_VARIANT &arm_cext_maverick /* Cirrus Maverick instructions. */
9867 cCE(cfldrs, c100400, 2, (RMF, ADDR), rd_cpaddr),
9868 cCE(cfldrd, c500400, 2, (RMD, ADDR), rd_cpaddr),
9869 cCE(cfldr32, c100500, 2, (RMFX, ADDR), rd_cpaddr),
9870 cCE(cfldr64, c500500, 2, (RMDX, ADDR), rd_cpaddr),
9871 cCE(cfstrs, c000400, 2, (RMF, ADDR), rd_cpaddr),
9872 cCE(cfstrd, c400400, 2, (RMD, ADDR), rd_cpaddr),
9873 cCE(cfstr32, c000500, 2, (RMFX, ADDR), rd_cpaddr),
9874 cCE(cfstr64, c400500, 2, (RMDX, ADDR), rd_cpaddr),
9875 cCE(cfmvsr, e000450, 2, (RMF, RR), rn_rd),
9876 cCE(cfmvrs, e100450, 2, (RR, RMF), rd_rn),
9877 cCE(cfmvdlr, e000410, 2, (RMD, RR), rn_rd),
9878 cCE(cfmvrdl, e100410, 2, (RR, RMD), rd_rn),
9879 cCE(cfmvdhr, e000430, 2, (RMD, RR), rn_rd),
9880 cCE(cfmvrdh, e100430, 2, (RR, RMD), rd_rn),
9881 cCE(cfmv64lr, e000510, 2, (RMDX, RR), rn_rd),
9882 cCE(cfmvr64l, e100510, 2, (RR, RMDX), rd_rn),
9883 cCE(cfmv64hr, e000530, 2, (RMDX, RR), rn_rd),
9884 cCE(cfmvr64h, e100530, 2, (RR, RMDX), rd_rn),
9885 cCE(cfmval32, e200440, 2, (RMAX, RMFX), rd_rn),
9886 cCE(cfmv32al, e100440, 2, (RMFX, RMAX), rd_rn),
9887 cCE(cfmvam32, e200460, 2, (RMAX, RMFX), rd_rn),
9888 cCE(cfmv32am, e100460, 2, (RMFX, RMAX), rd_rn),
9889 cCE(cfmvah32, e200480, 2, (RMAX, RMFX), rd_rn),
9890 cCE(cfmv32ah, e100480, 2, (RMFX, RMAX), rd_rn),
9891 cCE(cfmva32, e2004a0, 2, (RMAX, RMFX), rd_rn),
9892 cCE(cfmv32a, e1004a0, 2, (RMFX, RMAX), rd_rn),
9893 cCE(cfmva64, e2004c0, 2, (RMAX, RMDX), rd_rn),
9894 cCE(cfmv64a, e1004c0, 2, (RMDX, RMAX), rd_rn),
9895 cCE(cfmvsc32, e2004e0, 2, (RMDS, RMDX), mav_dspsc),
9896 cCE(cfmv32sc, e1004e0, 2, (RMDX, RMDS), rd),
9897 cCE(cfcpys, e000400, 2, (RMF, RMF), rd_rn),
9898 cCE(cfcpyd, e000420, 2, (RMD, RMD), rd_rn),
9899 cCE(cfcvtsd, e000460, 2, (RMD, RMF), rd_rn),
9900 cCE(cfcvtds, e000440, 2, (RMF, RMD), rd_rn),
9901 cCE(cfcvt32s, e000480, 2, (RMF, RMFX), rd_rn),
9902 cCE(cfcvt32d, e0004a0, 2, (RMD, RMFX), rd_rn),
9903 cCE(cfcvt64s, e0004c0, 2, (RMF, RMDX), rd_rn),
9904 cCE(cfcvt64d, e0004e0, 2, (RMD, RMDX), rd_rn),
9905 cCE(cfcvts32, e100580, 2, (RMFX, RMF), rd_rn),
9906 cCE(cfcvtd32, e1005a0, 2, (RMFX, RMD), rd_rn),
9907 cCE(cftruncs32,e1005c0, 2, (RMFX, RMF), rd_rn),
9908 cCE(cftruncd32,e1005e0, 2, (RMFX, RMD), rd_rn),
9909 cCE(cfrshl32, e000550, 3, (RMFX, RMFX, RR), mav_triple),
9910 cCE(cfrshl64, e000570, 3, (RMDX, RMDX, RR), mav_triple),
9911 cCE(cfsh32, e000500, 3, (RMFX, RMFX, I63s), mav_shift),
9912 cCE(cfsh64, e200500, 3, (RMDX, RMDX, I63s), mav_shift),
9913 cCE(cfcmps, e100490, 3, (RR, RMF, RMF), rd_rn_rm),
9914 cCE(cfcmpd, e1004b0, 3, (RR, RMD, RMD), rd_rn_rm),
9915 cCE(cfcmp32, e100590, 3, (RR, RMFX, RMFX), rd_rn_rm),
9916 cCE(cfcmp64, e1005b0, 3, (RR, RMDX, RMDX), rd_rn_rm),
9917 cCE(cfabss, e300400, 2, (RMF, RMF), rd_rn),
9918 cCE(cfabsd, e300420, 2, (RMD, RMD), rd_rn),
9919 cCE(cfnegs, e300440, 2, (RMF, RMF), rd_rn),
9920 cCE(cfnegd, e300460, 2, (RMD, RMD), rd_rn),
9921 cCE(cfadds, e300480, 3, (RMF, RMF, RMF), rd_rn_rm),
9922 cCE(cfaddd, e3004a0, 3, (RMD, RMD, RMD), rd_rn_rm),
9923 cCE(cfsubs, e3004c0, 3, (RMF, RMF, RMF), rd_rn_rm),
9924 cCE(cfsubd, e3004e0, 3, (RMD, RMD, RMD), rd_rn_rm),
9925 cCE(cfmuls, e100400, 3, (RMF, RMF, RMF), rd_rn_rm),
9926 cCE(cfmuld, e100420, 3, (RMD, RMD, RMD), rd_rn_rm),
9927 cCE(cfabs32, e300500, 2, (RMFX, RMFX), rd_rn),
9928 cCE(cfabs64, e300520, 2, (RMDX, RMDX), rd_rn),
9929 cCE(cfneg32, e300540, 2, (RMFX, RMFX), rd_rn),
9930 cCE(cfneg64, e300560, 2, (RMDX, RMDX), rd_rn),
9931 cCE(cfadd32, e300580, 3, (RMFX, RMFX, RMFX), rd_rn_rm),
9932 cCE(cfadd64, e3005a0, 3, (RMDX, RMDX, RMDX), rd_rn_rm),
9933 cCE(cfsub32, e3005c0, 3, (RMFX, RMFX, RMFX), rd_rn_rm),
9934 cCE(cfsub64, e3005e0, 3, (RMDX, RMDX, RMDX), rd_rn_rm),
9935 cCE(cfmul32, e100500, 3, (RMFX, RMFX, RMFX), rd_rn_rm),
9936 cCE(cfmul64, e100520, 3, (RMDX, RMDX, RMDX), rd_rn_rm),
9937 cCE(cfmac32, e100540, 3, (RMFX, RMFX, RMFX), rd_rn_rm),
9938 cCE(cfmsc32, e100560, 3, (RMFX, RMFX, RMFX), rd_rn_rm),
9939 cCE(cfmadd32, e000600, 4, (RMAX, RMFX, RMFX, RMFX), mav_quad),
9940 cCE(cfmsub32, e100600, 4, (RMAX, RMFX, RMFX, RMFX), mav_quad),
9941 cCE(cfmadda32, e200600, 4, (RMAX, RMAX, RMFX, RMFX), mav_quad),
9942 cCE(cfmsuba32, e300600, 4, (RMAX, RMAX, RMFX, RMFX), mav_quad),
9945 #undef THUMB_VARIANT
9968 /* MD interface: bits in the object file. */
9970 /* Turn an integer of n bytes (in val) into a stream of bytes appropriate
9971 for use in the a.out file, and stores them in the array pointed to by buf.
9972 This knows about the endian-ness of the target machine and does
9973 THE RIGHT THING, whatever it is. Possible values for n are 1 (byte)
9974 2 (short) and 4 (long) Floating numbers are put out as a series of
9975 LITTLENUMS (shorts, here at least). */
9978 md_number_to_chars (char * buf, valueT val, int n)
9980 if (target_big_endian)
9981 number_to_chars_bigendian (buf, val, n);
9983 number_to_chars_littleendian (buf, val, n);
9987 md_chars_to_number (char * buf, int n)
9990 unsigned char * where = (unsigned char *) buf;
9992 if (target_big_endian)
9997 result |= (*where++ & 255);
10005 result |= (where[n] & 255);
10012 /* MD interface: Sections. */
10014 /* Estimate the size of a frag before relaxing. Assume everything fits in
10018 md_estimate_size_before_relax (fragS * fragp,
10019 segT segtype ATTRIBUTE_UNUSED)
10025 /* Convert a machine dependent frag. */
10028 md_convert_frag (bfd *abfd, segT asec ATTRIBUTE_UNUSED, fragS *fragp)
10030 unsigned long insn;
10031 unsigned long old_op;
10039 buf = fragp->fr_literal + fragp->fr_fix;
10041 old_op = bfd_get_16(abfd, buf);
10042 if (fragp->fr_symbol) {
10043 exp.X_op = O_symbol;
10044 exp.X_add_symbol = fragp->fr_symbol;
10046 exp.X_op = O_constant;
10048 exp.X_add_number = fragp->fr_offset;
10049 opcode = fragp->fr_subtype;
10052 case T_MNEM_ldr_pc:
10053 case T_MNEM_ldr_pc2:
10054 case T_MNEM_ldr_sp:
10055 case T_MNEM_str_sp:
10062 if (fragp->fr_var == 4)
10064 insn = THUMB_OP32(opcode);
10065 if ((old_op >> 12) == 4 || (old_op >> 12) == 9)
10067 insn |= (old_op & 0x700) << 4;
10071 insn |= (old_op & 7) << 12;
10072 insn |= (old_op & 0x38) << 13;
10074 insn |= 0x00000c00;
10075 put_thumb32_insn (buf, insn);
10076 reloc_type = BFD_RELOC_ARM_T32_OFFSET_IMM;
10080 reloc_type = BFD_RELOC_ARM_THUMB_OFFSET;
10082 pc_rel = (opcode == T_MNEM_ldr_pc2);
10085 if (fragp->fr_var == 4)
10087 insn = THUMB_OP32 (opcode);
10088 insn |= (old_op & 0xf0) << 4;
10089 put_thumb32_insn (buf, insn);
10090 reloc_type = BFD_RELOC_ARM_T32_ADD_PC12;
10094 reloc_type = BFD_RELOC_ARM_THUMB_ADD;
10095 exp.X_add_number -= 4;
10103 if (fragp->fr_var == 4)
10105 int r0off = (opcode == T_MNEM_mov
10106 || opcode == T_MNEM_movs) ? 0 : 8;
10107 insn = THUMB_OP32 (opcode);
10108 insn = (insn & 0xe1ffffff) | 0x10000000;
10109 insn |= (old_op & 0x700) << r0off;
10110 put_thumb32_insn (buf, insn);
10111 reloc_type = BFD_RELOC_ARM_T32_IMMEDIATE;
10115 reloc_type = BFD_RELOC_ARM_THUMB_IMM;
10120 if (fragp->fr_var == 4)
10122 insn = THUMB_OP32(opcode);
10123 put_thumb32_insn (buf, insn);
10124 reloc_type = BFD_RELOC_THUMB_PCREL_BRANCH25;
10127 reloc_type = BFD_RELOC_THUMB_PCREL_BRANCH12;
10131 if (fragp->fr_var == 4)
10133 insn = THUMB_OP32(opcode);
10134 insn |= (old_op & 0xf00) << 14;
10135 put_thumb32_insn (buf, insn);
10136 reloc_type = BFD_RELOC_THUMB_PCREL_BRANCH20;
10139 reloc_type = BFD_RELOC_THUMB_PCREL_BRANCH9;
10142 case T_MNEM_add_sp:
10143 case T_MNEM_add_pc:
10144 case T_MNEM_inc_sp:
10145 case T_MNEM_dec_sp:
10146 if (fragp->fr_var == 4)
10148 /* ??? Choose between add and addw. */
10149 insn = THUMB_OP32 (opcode);
10150 insn |= (old_op & 0xf0) << 4;
10151 put_thumb32_insn (buf, insn);
10152 reloc_type = BFD_RELOC_ARM_T32_IMMEDIATE;
10155 reloc_type = BFD_RELOC_ARM_THUMB_ADD;
10163 if (fragp->fr_var == 4)
10165 insn = THUMB_OP32 (opcode);
10166 insn |= (old_op & 0xf0) << 4;
10167 insn |= (old_op & 0xf) << 16;
10168 put_thumb32_insn (buf, insn);
10169 reloc_type = BFD_RELOC_ARM_T32_IMMEDIATE;
10172 reloc_type = BFD_RELOC_ARM_THUMB_ADD;
10178 fixp = fix_new_exp (fragp, fragp->fr_fix, fragp->fr_var, &exp, pc_rel,
10180 fixp->fx_file = fragp->fr_file;
10181 fixp->fx_line = fragp->fr_line;
10182 fragp->fr_fix += fragp->fr_var;
10185 /* Return the size of a relaxable immediate operand instruction.
10186 SHIFT and SIZE specify the form of the allowable immediate. */
10188 relax_immediate (fragS *fragp, int size, int shift)
10194 /* ??? Should be able to do better than this. */
10195 if (fragp->fr_symbol)
10198 low = (1 << shift) - 1;
10199 mask = (1 << (shift + size)) - (1 << shift);
10200 offset = fragp->fr_offset;
10201 /* Force misaligned offsets to 32-bit variant. */
10204 if (offset & ~mask)
10209 /* Return the size of a relaxable adr pseudo-instruction or PC-relative
10212 relax_adr (fragS *fragp, asection *sec)
10217 /* Assume worst case for symbols not known to be in the same section. */
10218 if (!S_IS_DEFINED(fragp->fr_symbol)
10219 || sec != S_GET_SEGMENT (fragp->fr_symbol))
10222 val = S_GET_VALUE(fragp->fr_symbol) + fragp->fr_offset;
10223 addr = fragp->fr_address + fragp->fr_fix;
10224 addr = (addr + 4) & ~3;
10225 /* Fix the insn as the 4-byte version if the target address is not
10226 sufficiently aligned. This is prevents an infinite loop when two
10227 instructions have contradictory range/alignment requirements. */
10231 if (val < 0 || val > 1020)
10236 /* Return the size of a relaxable add/sub immediate instruction. */
10238 relax_addsub (fragS *fragp, asection *sec)
10243 buf = fragp->fr_literal + fragp->fr_fix;
10244 op = bfd_get_16(sec->owner, buf);
10245 if ((op & 0xf) == ((op >> 4) & 0xf))
10246 return relax_immediate (fragp, 8, 0);
10248 return relax_immediate (fragp, 3, 0);
10252 /* Return the size of a relaxable branch instruction. BITS is the
10253 size of the offset field in the narrow instruction. */
10256 relax_branch (fragS *fragp, asection *sec, int bits)
10262 /* Assume worst case for symbols not known to be in the same section. */
10263 if (!S_IS_DEFINED(fragp->fr_symbol)
10264 || sec != S_GET_SEGMENT (fragp->fr_symbol))
10267 val = S_GET_VALUE(fragp->fr_symbol) + fragp->fr_offset;
10268 addr = fragp->fr_address + fragp->fr_fix + 4;
10271 /* Offset is a signed value *2 */
10273 if (val >= limit || val < -limit)
10279 /* Relax a machine dependent frag. This returns the amount by which
10280 the current size of the frag should change. */
10283 arm_relax_frag (asection *sec, fragS *fragp, long stretch ATTRIBUTE_UNUSED)
10288 oldsize = fragp->fr_var;
10289 switch (fragp->fr_subtype)
10291 case T_MNEM_ldr_pc2:
10292 newsize = relax_adr(fragp, sec);
10294 case T_MNEM_ldr_pc:
10295 case T_MNEM_ldr_sp:
10296 case T_MNEM_str_sp:
10297 newsize = relax_immediate(fragp, 8, 2);
10301 newsize = relax_immediate(fragp, 5, 2);
10305 newsize = relax_immediate(fragp, 5, 1);
10309 newsize = relax_immediate(fragp, 5, 0);
10312 newsize = relax_adr(fragp, sec);
10318 newsize = relax_immediate(fragp, 8, 0);
10321 newsize = relax_branch(fragp, sec, 11);
10324 newsize = relax_branch(fragp, sec, 8);
10326 case T_MNEM_add_sp:
10327 case T_MNEM_add_pc:
10328 newsize = relax_immediate (fragp, 8, 2);
10330 case T_MNEM_inc_sp:
10331 case T_MNEM_dec_sp:
10332 newsize = relax_immediate (fragp, 7, 2);
10338 newsize = relax_addsub (fragp, sec);
10345 fragp->fr_var = -newsize;
10346 md_convert_frag (sec->owner, sec, fragp);
10348 return -(newsize + oldsize);
10350 fragp->fr_var = newsize;
10351 return newsize - oldsize;
10354 /* Round up a section size to the appropriate boundary. */
10357 md_section_align (segT segment ATTRIBUTE_UNUSED,
10363 /* Round all sects to multiple of 4. */
10364 return (size + 3) & ~3;
10368 /* This is called from HANDLE_ALIGN in write.c. Fill in the contents
10369 of an rs_align_code fragment. */
10372 arm_handle_align (fragS * fragP)
10374 static char const arm_noop[4] = { 0x00, 0x00, 0xa0, 0xe1 };
10375 static char const thumb_noop[2] = { 0xc0, 0x46 };
10376 static char const arm_bigend_noop[4] = { 0xe1, 0xa0, 0x00, 0x00 };
10377 static char const thumb_bigend_noop[2] = { 0x46, 0xc0 };
10379 int bytes, fix, noop_size;
10383 if (fragP->fr_type != rs_align_code)
10386 bytes = fragP->fr_next->fr_address - fragP->fr_address - fragP->fr_fix;
10387 p = fragP->fr_literal + fragP->fr_fix;
10390 if (bytes > MAX_MEM_FOR_RS_ALIGN_CODE)
10391 bytes &= MAX_MEM_FOR_RS_ALIGN_CODE;
10393 if (fragP->tc_frag_data)
10395 if (target_big_endian)
10396 noop = thumb_bigend_noop;
10399 noop_size = sizeof (thumb_noop);
10403 if (target_big_endian)
10404 noop = arm_bigend_noop;
10407 noop_size = sizeof (arm_noop);
10410 if (bytes & (noop_size - 1))
10412 fix = bytes & (noop_size - 1);
10413 memset (p, 0, fix);
10418 while (bytes >= noop_size)
10420 memcpy (p, noop, noop_size);
10422 bytes -= noop_size;
10426 fragP->fr_fix += fix;
10427 fragP->fr_var = noop_size;
10430 /* Called from md_do_align. Used to create an alignment
10431 frag in a code section. */
10434 arm_frag_align_code (int n, int max)
10438 /* We assume that there will never be a requirement
10439 to support alignments greater than 32 bytes. */
10440 if (max > MAX_MEM_FOR_RS_ALIGN_CODE)
10441 as_fatal (_("alignments greater than 32 bytes not supported in .text sections."));
10443 p = frag_var (rs_align_code,
10444 MAX_MEM_FOR_RS_ALIGN_CODE,
10446 (relax_substateT) max,
10453 /* Perform target specific initialisation of a frag. */
10456 arm_init_frag (fragS * fragP)
10458 /* Record whether this frag is in an ARM or a THUMB area. */
10459 fragP->tc_frag_data = thumb_mode;
10463 /* When we change sections we need to issue a new mapping symbol. */
10466 arm_elf_change_section (void)
10469 segment_info_type *seginfo;
10471 /* Link an unlinked unwind index table section to the .text section. */
10472 if (elf_section_type (now_seg) == SHT_ARM_EXIDX
10473 && elf_linked_to_section (now_seg) == NULL)
10474 elf_linked_to_section (now_seg) = text_section;
10476 if (!SEG_NORMAL (now_seg))
10479 flags = bfd_get_section_flags (stdoutput, now_seg);
10481 /* We can ignore sections that only contain debug info. */
10482 if ((flags & SEC_ALLOC) == 0)
10485 seginfo = seg_info (now_seg);
10486 mapstate = seginfo->tc_segment_info_data.mapstate;
10487 marked_pr_dependency = seginfo->tc_segment_info_data.marked_pr_dependency;
10491 arm_elf_section_type (const char * str, size_t len)
10493 if (len == 5 && strncmp (str, "exidx", 5) == 0)
10494 return SHT_ARM_EXIDX;
10499 /* Code to deal with unwinding tables. */
10501 static void add_unwind_adjustsp (offsetT);
10503 /* Cenerate and deferred unwind frame offset. */
10506 flush_pending_unwind (void)
10510 offset = unwind.pending_offset;
10511 unwind.pending_offset = 0;
10513 add_unwind_adjustsp (offset);
10516 /* Add an opcode to this list for this function. Two-byte opcodes should
10517 be passed as op[0] << 8 | op[1]. The list of opcodes is built in reverse
10521 add_unwind_opcode (valueT op, int length)
10523 /* Add any deferred stack adjustment. */
10524 if (unwind.pending_offset)
10525 flush_pending_unwind ();
10527 unwind.sp_restored = 0;
10529 if (unwind.opcode_count + length > unwind.opcode_alloc)
10531 unwind.opcode_alloc += ARM_OPCODE_CHUNK_SIZE;
10532 if (unwind.opcodes)
10533 unwind.opcodes = xrealloc (unwind.opcodes,
10534 unwind.opcode_alloc);
10536 unwind.opcodes = xmalloc (unwind.opcode_alloc);
10541 unwind.opcodes[unwind.opcode_count] = op & 0xff;
10543 unwind.opcode_count++;
10547 /* Add unwind opcodes to adjust the stack pointer. */
10550 add_unwind_adjustsp (offsetT offset)
10554 if (offset > 0x200)
10556 /* We need at most 5 bytes to hold a 32-bit value in a uleb128. */
10561 /* Long form: 0xb2, uleb128. */
10562 /* This might not fit in a word so add the individual bytes,
10563 remembering the list is built in reverse order. */
10564 o = (valueT) ((offset - 0x204) >> 2);
10566 add_unwind_opcode (0, 1);
10568 /* Calculate the uleb128 encoding of the offset. */
10572 bytes[n] = o & 0x7f;
10578 /* Add the insn. */
10580 add_unwind_opcode (bytes[n - 1], 1);
10581 add_unwind_opcode (0xb2, 1);
10583 else if (offset > 0x100)
10585 /* Two short opcodes. */
10586 add_unwind_opcode (0x3f, 1);
10587 op = (offset - 0x104) >> 2;
10588 add_unwind_opcode (op, 1);
10590 else if (offset > 0)
10592 /* Short opcode. */
10593 op = (offset - 4) >> 2;
10594 add_unwind_opcode (op, 1);
10596 else if (offset < 0)
10599 while (offset > 0x100)
10601 add_unwind_opcode (0x7f, 1);
10604 op = ((offset - 4) >> 2) | 0x40;
10605 add_unwind_opcode (op, 1);
10609 /* Finish the list of unwind opcodes for this function. */
10611 finish_unwind_opcodes (void)
10615 if (unwind.fp_used)
10617 /* Adjust sp as neccessary. */
10618 unwind.pending_offset += unwind.fp_offset - unwind.frame_size;
10619 flush_pending_unwind ();
10621 /* After restoring sp from the frame pointer. */
10622 op = 0x90 | unwind.fp_reg;
10623 add_unwind_opcode (op, 1);
10626 flush_pending_unwind ();
10630 /* Start an exception table entry. If idx is nonzero this is an index table
10634 start_unwind_section (const segT text_seg, int idx)
10636 const char * text_name;
10637 const char * prefix;
10638 const char * prefix_once;
10639 const char * group_name;
10643 size_t sec_name_len;
10650 prefix = ELF_STRING_ARM_unwind;
10651 prefix_once = ELF_STRING_ARM_unwind_once;
10652 type = SHT_ARM_EXIDX;
10656 prefix = ELF_STRING_ARM_unwind_info;
10657 prefix_once = ELF_STRING_ARM_unwind_info_once;
10658 type = SHT_PROGBITS;
10661 text_name = segment_name (text_seg);
10662 if (streq (text_name, ".text"))
10665 if (strncmp (text_name, ".gnu.linkonce.t.",
10666 strlen (".gnu.linkonce.t.")) == 0)
10668 prefix = prefix_once;
10669 text_name += strlen (".gnu.linkonce.t.");
10672 prefix_len = strlen (prefix);
10673 text_len = strlen (text_name);
10674 sec_name_len = prefix_len + text_len;
10675 sec_name = xmalloc (sec_name_len + 1);
10676 memcpy (sec_name, prefix, prefix_len);
10677 memcpy (sec_name + prefix_len, text_name, text_len);
10678 sec_name[prefix_len + text_len] = '\0';
10684 /* Handle COMDAT group. */
10685 if (prefix != prefix_once && (text_seg->flags & SEC_LINK_ONCE) != 0)
10687 group_name = elf_group_name (text_seg);
10688 if (group_name == NULL)
10690 as_bad ("Group section `%s' has no group signature",
10691 segment_name (text_seg));
10692 ignore_rest_of_line ();
10695 flags |= SHF_GROUP;
10699 obj_elf_change_section (sec_name, type, flags, 0, group_name, linkonce, 0);
10701 /* Set the setion link for index tables. */
10703 elf_linked_to_section (now_seg) = text_seg;
10707 /* Start an unwind table entry. HAVE_DATA is nonzero if we have additional
10708 personality routine data. Returns zero, or the index table value for
10709 and inline entry. */
10712 create_unwind_entry (int have_data)
10717 /* The current word of data. */
10719 /* The number of bytes left in this word. */
10722 finish_unwind_opcodes ();
10724 /* Remember the current text section. */
10725 unwind.saved_seg = now_seg;
10726 unwind.saved_subseg = now_subseg;
10728 start_unwind_section (now_seg, 0);
10730 if (unwind.personality_routine == NULL)
10732 if (unwind.personality_index == -2)
10735 as_bad (_("handerdata in cantunwind frame"));
10736 return 1; /* EXIDX_CANTUNWIND. */
10739 /* Use a default personality routine if none is specified. */
10740 if (unwind.personality_index == -1)
10742 if (unwind.opcode_count > 3)
10743 unwind.personality_index = 1;
10745 unwind.personality_index = 0;
10748 /* Space for the personality routine entry. */
10749 if (unwind.personality_index == 0)
10751 if (unwind.opcode_count > 3)
10752 as_bad (_("too many unwind opcodes for personality routine 0"));
10756 /* All the data is inline in the index table. */
10759 while (unwind.opcode_count > 0)
10761 unwind.opcode_count--;
10762 data = (data << 8) | unwind.opcodes[unwind.opcode_count];
10766 /* Pad with "finish" opcodes. */
10768 data = (data << 8) | 0xb0;
10775 /* We get two opcodes "free" in the first word. */
10776 size = unwind.opcode_count - 2;
10779 /* An extra byte is required for the opcode count. */
10780 size = unwind.opcode_count + 1;
10782 size = (size + 3) >> 2;
10784 as_bad (_("too many unwind opcodes"));
10786 frag_align (2, 0, 0);
10787 record_alignment (now_seg, 2);
10788 unwind.table_entry = expr_build_dot ();
10790 /* Allocate the table entry. */
10791 ptr = frag_more ((size << 2) + 4);
10792 where = frag_now_fix () - ((size << 2) + 4);
10794 switch (unwind.personality_index)
10797 /* ??? Should this be a PLT generating relocation? */
10798 /* Custom personality routine. */
10799 fix_new (frag_now, where, 4, unwind.personality_routine, 0, 1,
10800 BFD_RELOC_ARM_PREL31);
10805 /* Set the first byte to the number of additional words. */
10810 /* ABI defined personality routines. */
10812 /* Three opcodes bytes are packed into the first word. */
10819 /* The size and first two opcode bytes go in the first word. */
10820 data = ((0x80 + unwind.personality_index) << 8) | size;
10825 /* Should never happen. */
10829 /* Pack the opcodes into words (MSB first), reversing the list at the same
10831 while (unwind.opcode_count > 0)
10835 md_number_to_chars (ptr, data, 4);
10840 unwind.opcode_count--;
10842 data = (data << 8) | unwind.opcodes[unwind.opcode_count];
10845 /* Finish off the last word. */
10848 /* Pad with "finish" opcodes. */
10850 data = (data << 8) | 0xb0;
10852 md_number_to_chars (ptr, data, 4);
10857 /* Add an empty descriptor if there is no user-specified data. */
10858 ptr = frag_more (4);
10859 md_number_to_chars (ptr, 0, 4);
10865 /* Convert REGNAME to a DWARF-2 register number. */
10868 tc_arm_regname_to_dw2regnum (const char *regname)
10870 int reg = arm_reg_parse ((char **) ®name, REG_TYPE_RN);
10878 /* Initialize the DWARF-2 unwind information for this procedure. */
10881 tc_arm_frame_initial_instructions (void)
10883 cfi_add_CFA_def_cfa (REG_SP, 0);
10885 #endif /* OBJ_ELF */
10888 /* MD interface: Symbol and relocation handling. */
10890 /* Return the address within the segment that a PC-relative fixup is
10891 relative to. For ARM, PC-relative fixups applied to instructions
10892 are generally relative to the location of the fixup plus 8 bytes.
10893 Thumb branches are offset by 4, and Thumb loads relative to PC
10894 require special handling. */
10897 md_pcrel_from_section (fixS * fixP, segT seg)
10899 offsetT base = fixP->fx_where + fixP->fx_frag->fr_address;
10901 /* If this is pc-relative and we are going to emit a relocation
10902 then we just want to put out any pipeline compensation that the linker
10903 will need. Otherwise we want to use the calculated base. */
10905 && ((fixP->fx_addsy && S_GET_SEGMENT (fixP->fx_addsy) != seg)
10906 || arm_force_relocation (fixP)))
10909 switch (fixP->fx_r_type)
10911 /* PC relative addressing on the Thumb is slightly odd as the
10912 bottom two bits of the PC are forced to zero for the
10913 calculation. This happens *after* application of the
10914 pipeline offset. However, Thumb adrl already adjusts for
10915 this, so we need not do it again. */
10916 case BFD_RELOC_ARM_THUMB_ADD:
10919 case BFD_RELOC_ARM_THUMB_OFFSET:
10920 case BFD_RELOC_ARM_T32_OFFSET_IMM:
10921 case BFD_RELOC_ARM_T32_ADD_PC12:
10922 case BFD_RELOC_ARM_T32_CP_OFF_IMM:
10923 return (base + 4) & ~3;
10925 /* Thumb branches are simply offset by +4. */
10926 case BFD_RELOC_THUMB_PCREL_BRANCH7:
10927 case BFD_RELOC_THUMB_PCREL_BRANCH9:
10928 case BFD_RELOC_THUMB_PCREL_BRANCH12:
10929 case BFD_RELOC_THUMB_PCREL_BRANCH20:
10930 case BFD_RELOC_THUMB_PCREL_BRANCH23:
10931 case BFD_RELOC_THUMB_PCREL_BRANCH25:
10932 case BFD_RELOC_THUMB_PCREL_BLX:
10935 /* ARM mode branches are offset by +8. However, the Windows CE
10936 loader expects the relocation not to take this into account. */
10937 case BFD_RELOC_ARM_PCREL_BRANCH:
10938 case BFD_RELOC_ARM_PCREL_CALL:
10939 case BFD_RELOC_ARM_PCREL_JUMP:
10940 case BFD_RELOC_ARM_PCREL_BLX:
10941 case BFD_RELOC_ARM_PLT32:
10948 /* ARM mode loads relative to PC are also offset by +8. Unlike
10949 branches, the Windows CE loader *does* expect the relocation
10950 to take this into account. */
10951 case BFD_RELOC_ARM_OFFSET_IMM:
10952 case BFD_RELOC_ARM_OFFSET_IMM8:
10953 case BFD_RELOC_ARM_HWLITERAL:
10954 case BFD_RELOC_ARM_LITERAL:
10955 case BFD_RELOC_ARM_CP_OFF_IMM:
10959 /* Other PC-relative relocations are un-offset. */
10965 /* Under ELF we need to default _GLOBAL_OFFSET_TABLE.
10966 Otherwise we have no need to default values of symbols. */
10969 md_undefined_symbol (char * name ATTRIBUTE_UNUSED)
10972 if (name[0] == '_' && name[1] == 'G'
10973 && streq (name, GLOBAL_OFFSET_TABLE_NAME))
10977 if (symbol_find (name))
10978 as_bad ("GOT already in the symbol table");
10980 GOT_symbol = symbol_new (name, undefined_section,
10981 (valueT) 0, & zero_address_frag);
10991 /* Subroutine of md_apply_fix. Check to see if an immediate can be
10992 computed as two separate immediate values, added together. We
10993 already know that this value cannot be computed by just one ARM
10996 static unsigned int
10997 validate_immediate_twopart (unsigned int val,
10998 unsigned int * highpart)
11003 for (i = 0; i < 32; i += 2)
11004 if (((a = rotate_left (val, i)) & 0xff) != 0)
11010 * highpart = (a >> 8) | ((i + 24) << 7);
11012 else if (a & 0xff0000)
11014 if (a & 0xff000000)
11016 * highpart = (a >> 16) | ((i + 16) << 7);
11020 assert (a & 0xff000000);
11021 * highpart = (a >> 24) | ((i + 8) << 7);
11024 return (a & 0xff) | (i << 7);
11031 validate_offset_imm (unsigned int val, int hwse)
11033 if ((hwse && val > 255) || val > 4095)
11038 /* Subroutine of md_apply_fix. Do those data_ops which can take a
11039 negative immediate constant by altering the instruction. A bit of
11044 by inverting the second operand, and
11047 by negating the second operand. */
11050 negate_data_op (unsigned long * instruction,
11051 unsigned long value)
11054 unsigned long negated, inverted;
11056 negated = encode_arm_immediate (-value);
11057 inverted = encode_arm_immediate (~value);
11059 op = (*instruction >> DATA_OP_SHIFT) & 0xf;
11062 /* First negates. */
11063 case OPCODE_SUB: /* ADD <-> SUB */
11064 new_inst = OPCODE_ADD;
11069 new_inst = OPCODE_SUB;
11073 case OPCODE_CMP: /* CMP <-> CMN */
11074 new_inst = OPCODE_CMN;
11079 new_inst = OPCODE_CMP;
11083 /* Now Inverted ops. */
11084 case OPCODE_MOV: /* MOV <-> MVN */
11085 new_inst = OPCODE_MVN;
11090 new_inst = OPCODE_MOV;
11094 case OPCODE_AND: /* AND <-> BIC */
11095 new_inst = OPCODE_BIC;
11100 new_inst = OPCODE_AND;
11104 case OPCODE_ADC: /* ADC <-> SBC */
11105 new_inst = OPCODE_SBC;
11110 new_inst = OPCODE_ADC;
11114 /* We cannot do anything. */
11119 if (value == (unsigned) FAIL)
11122 *instruction &= OPCODE_MASK;
11123 *instruction |= new_inst << DATA_OP_SHIFT;
11127 /* Like negate_data_op, but for Thumb-2. */
11129 static unsigned int
11130 thumb32_negate_data_op (offsetT *instruction, offsetT value)
11134 offsetT negated, inverted;
11136 negated = encode_thumb32_immediate (-value);
11137 inverted = encode_thumb32_immediate (~value);
11139 rd = (*instruction >> 8) & 0xf;
11140 op = (*instruction >> T2_DATA_OP_SHIFT) & 0xf;
11143 /* ADD <-> SUB. Includes CMP <-> CMN. */
11144 case T2_OPCODE_SUB:
11145 new_inst = T2_OPCODE_ADD;
11149 case T2_OPCODE_ADD:
11150 new_inst = T2_OPCODE_SUB;
11154 /* ORR <-> ORN. Includes MOV <-> MVN. */
11155 case T2_OPCODE_ORR:
11156 new_inst = T2_OPCODE_ORN;
11160 case T2_OPCODE_ORN:
11161 new_inst = T2_OPCODE_ORR;
11165 /* AND <-> BIC. TST has no inverted equivalent. */
11166 case T2_OPCODE_AND:
11167 new_inst = T2_OPCODE_BIC;
11174 case T2_OPCODE_BIC:
11175 new_inst = T2_OPCODE_AND;
11180 case T2_OPCODE_ADC:
11181 new_inst = T2_OPCODE_SBC;
11185 case T2_OPCODE_SBC:
11186 new_inst = T2_OPCODE_ADC;
11190 /* We cannot do anything. */
11198 *instruction &= T2_OPCODE_MASK;
11199 *instruction |= new_inst << T2_DATA_OP_SHIFT;
11203 /* Read a 32-bit thumb instruction from buf. */
11204 static unsigned long
11205 get_thumb32_insn (char * buf)
11207 unsigned long insn;
11208 insn = md_chars_to_number (buf, THUMB_SIZE) << 16;
11209 insn |= md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
11215 md_apply_fix (fixS * fixP,
11219 offsetT value = * valP;
11221 unsigned int newimm;
11222 unsigned long temp;
11224 char * buf = fixP->fx_where + fixP->fx_frag->fr_literal;
11226 assert (fixP->fx_r_type <= BFD_RELOC_UNUSED);
11228 /* Note whether this will delete the relocation. */
11229 if (fixP->fx_addsy == 0 && !fixP->fx_pcrel)
11232 /* On a 64-bit host, silently truncate 'value' to 32 bits for
11233 consistency with the behavior on 32-bit hosts. Remember value
11235 value &= 0xffffffff;
11236 value ^= 0x80000000;
11237 value -= 0x80000000;
11240 fixP->fx_addnumber = value;
11242 /* Same treatment for fixP->fx_offset. */
11243 fixP->fx_offset &= 0xffffffff;
11244 fixP->fx_offset ^= 0x80000000;
11245 fixP->fx_offset -= 0x80000000;
11247 switch (fixP->fx_r_type)
11249 case BFD_RELOC_NONE:
11250 /* This will need to go in the object file. */
11254 case BFD_RELOC_ARM_IMMEDIATE:
11255 /* We claim that this fixup has been processed here,
11256 even if in fact we generate an error because we do
11257 not have a reloc for it, so tc_gen_reloc will reject it. */
11261 && ! S_IS_DEFINED (fixP->fx_addsy))
11263 as_bad_where (fixP->fx_file, fixP->fx_line,
11264 _("undefined symbol %s used as an immediate value"),
11265 S_GET_NAME (fixP->fx_addsy));
11269 newimm = encode_arm_immediate (value);
11270 temp = md_chars_to_number (buf, INSN_SIZE);
11272 /* If the instruction will fail, see if we can fix things up by
11273 changing the opcode. */
11274 if (newimm == (unsigned int) FAIL
11275 && (newimm = negate_data_op (&temp, value)) == (unsigned int) FAIL)
11277 as_bad_where (fixP->fx_file, fixP->fx_line,
11278 _("invalid constant (%lx) after fixup"),
11279 (unsigned long) value);
11283 newimm |= (temp & 0xfffff000);
11284 md_number_to_chars (buf, (valueT) newimm, INSN_SIZE);
11287 case BFD_RELOC_ARM_ADRL_IMMEDIATE:
11289 unsigned int highpart = 0;
11290 unsigned int newinsn = 0xe1a00000; /* nop. */
11292 newimm = encode_arm_immediate (value);
11293 temp = md_chars_to_number (buf, INSN_SIZE);
11295 /* If the instruction will fail, see if we can fix things up by
11296 changing the opcode. */
11297 if (newimm == (unsigned int) FAIL
11298 && (newimm = negate_data_op (& temp, value)) == (unsigned int) FAIL)
11300 /* No ? OK - try using two ADD instructions to generate
11302 newimm = validate_immediate_twopart (value, & highpart);
11304 /* Yes - then make sure that the second instruction is
11306 if (newimm != (unsigned int) FAIL)
11308 /* Still No ? Try using a negated value. */
11309 else if ((newimm = validate_immediate_twopart (- value, & highpart)) != (unsigned int) FAIL)
11310 temp = newinsn = (temp & OPCODE_MASK) | OPCODE_SUB << DATA_OP_SHIFT;
11311 /* Otherwise - give up. */
11314 as_bad_where (fixP->fx_file, fixP->fx_line,
11315 _("unable to compute ADRL instructions for PC offset of 0x%lx"),
11320 /* Replace the first operand in the 2nd instruction (which
11321 is the PC) with the destination register. We have
11322 already added in the PC in the first instruction and we
11323 do not want to do it again. */
11324 newinsn &= ~ 0xf0000;
11325 newinsn |= ((newinsn & 0x0f000) << 4);
11328 newimm |= (temp & 0xfffff000);
11329 md_number_to_chars (buf, (valueT) newimm, INSN_SIZE);
11331 highpart |= (newinsn & 0xfffff000);
11332 md_number_to_chars (buf + INSN_SIZE, (valueT) highpart, INSN_SIZE);
11336 case BFD_RELOC_ARM_OFFSET_IMM:
11337 case BFD_RELOC_ARM_LITERAL:
11343 if (validate_offset_imm (value, 0) == FAIL)
11345 if (fixP->fx_r_type == BFD_RELOC_ARM_LITERAL)
11346 as_bad_where (fixP->fx_file, fixP->fx_line,
11347 _("invalid literal constant: pool needs to be closer"));
11349 as_bad_where (fixP->fx_file, fixP->fx_line,
11350 _("bad immediate value for offset (%ld)"),
11355 newval = md_chars_to_number (buf, INSN_SIZE);
11356 newval &= 0xff7ff000;
11357 newval |= value | (sign ? INDEX_UP : 0);
11358 md_number_to_chars (buf, newval, INSN_SIZE);
11361 case BFD_RELOC_ARM_OFFSET_IMM8:
11362 case BFD_RELOC_ARM_HWLITERAL:
11368 if (validate_offset_imm (value, 1) == FAIL)
11370 if (fixP->fx_r_type == BFD_RELOC_ARM_HWLITERAL)
11371 as_bad_where (fixP->fx_file, fixP->fx_line,
11372 _("invalid literal constant: pool needs to be closer"));
11374 as_bad (_("bad immediate value for half-word offset (%ld)"),
11379 newval = md_chars_to_number (buf, INSN_SIZE);
11380 newval &= 0xff7ff0f0;
11381 newval |= ((value >> 4) << 8) | (value & 0xf) | (sign ? INDEX_UP : 0);
11382 md_number_to_chars (buf, newval, INSN_SIZE);
11385 case BFD_RELOC_ARM_T32_OFFSET_U8:
11386 if (value < 0 || value > 1020 || value % 4 != 0)
11387 as_bad_where (fixP->fx_file, fixP->fx_line,
11388 _("bad immediate value for offset (%ld)"), (long) value);
11391 newval = md_chars_to_number (buf+2, THUMB_SIZE);
11393 md_number_to_chars (buf+2, newval, THUMB_SIZE);
11396 case BFD_RELOC_ARM_T32_OFFSET_IMM:
11397 /* This is a complicated relocation used for all varieties of Thumb32
11398 load/store instruction with immediate offset:
11400 1110 100P u1WL NNNN XXXX YYYY iiii iiii - +/-(U) pre/post(P) 8-bit,
11401 *4, optional writeback(W)
11402 (doubleword load/store)
11404 1111 100S uTTL 1111 XXXX iiii iiii iiii - +/-(U) 12-bit PC-rel
11405 1111 100S 0TTL NNNN XXXX 1Pu1 iiii iiii - +/-(U) pre/post(P) 8-bit
11406 1111 100S 0TTL NNNN XXXX 1110 iiii iiii - positive 8-bit (T instruction)
11407 1111 100S 1TTL NNNN XXXX iiii iiii iiii - positive 12-bit
11408 1111 100S 0TTL NNNN XXXX 1100 iiii iiii - negative 8-bit
11410 Uppercase letters indicate bits that are already encoded at
11411 this point. Lowercase letters are our problem. For the
11412 second block of instructions, the secondary opcode nybble
11413 (bits 8..11) is present, and bit 23 is zero, even if this is
11414 a PC-relative operation. */
11415 newval = md_chars_to_number (buf, THUMB_SIZE);
11417 newval |= md_chars_to_number (buf+THUMB_SIZE, THUMB_SIZE);
11419 if ((newval & 0xf0000000) == 0xe0000000)
11421 /* Doubleword load/store: 8-bit offset, scaled by 4. */
11423 newval |= (1 << 23);
11426 if (value % 4 != 0)
11428 as_bad_where (fixP->fx_file, fixP->fx_line,
11429 _("offset not a multiple of 4"));
11435 as_bad_where (fixP->fx_file, fixP->fx_line,
11436 _("offset out of range"));
11441 else if ((newval & 0x000f0000) == 0x000f0000)
11443 /* PC-relative, 12-bit offset. */
11445 newval |= (1 << 23);
11450 as_bad_where (fixP->fx_file, fixP->fx_line,
11451 _("offset out of range"));
11456 else if ((newval & 0x00000100) == 0x00000100)
11458 /* Writeback: 8-bit, +/- offset. */
11460 newval |= (1 << 9);
11465 as_bad_where (fixP->fx_file, fixP->fx_line,
11466 _("offset out of range"));
11471 else if ((newval & 0x00000f00) == 0x00000e00)
11473 /* T-instruction: positive 8-bit offset. */
11474 if (value < 0 || value > 0xff)
11476 as_bad_where (fixP->fx_file, fixP->fx_line,
11477 _("offset out of range"));
11485 /* Positive 12-bit or negative 8-bit offset. */
11489 newval |= (1 << 23);
11499 as_bad_where (fixP->fx_file, fixP->fx_line,
11500 _("offset out of range"));
11507 md_number_to_chars (buf, (newval >> 16) & 0xffff, THUMB_SIZE);
11508 md_number_to_chars (buf + THUMB_SIZE, newval & 0xffff, THUMB_SIZE);
11511 case BFD_RELOC_ARM_SHIFT_IMM:
11512 newval = md_chars_to_number (buf, INSN_SIZE);
11513 if (((unsigned long) value) > 32
11515 && (((newval & 0x60) == 0) || (newval & 0x60) == 0x60)))
11517 as_bad_where (fixP->fx_file, fixP->fx_line,
11518 _("shift expression is too large"));
11523 /* Shifts of zero must be done as lsl. */
11525 else if (value == 32)
11527 newval &= 0xfffff07f;
11528 newval |= (value & 0x1f) << 7;
11529 md_number_to_chars (buf, newval, INSN_SIZE);
11532 case BFD_RELOC_ARM_T32_IMMEDIATE:
11533 case BFD_RELOC_ARM_T32_IMM12:
11534 case BFD_RELOC_ARM_T32_ADD_PC12:
11535 /* We claim that this fixup has been processed here,
11536 even if in fact we generate an error because we do
11537 not have a reloc for it, so tc_gen_reloc will reject it. */
11541 && ! S_IS_DEFINED (fixP->fx_addsy))
11543 as_bad_where (fixP->fx_file, fixP->fx_line,
11544 _("undefined symbol %s used as an immediate value"),
11545 S_GET_NAME (fixP->fx_addsy));
11549 newval = md_chars_to_number (buf, THUMB_SIZE);
11551 newval |= md_chars_to_number (buf+2, THUMB_SIZE);
11553 /* FUTURE: Implement analogue of negate_data_op for T32. */
11554 if (fixP->fx_r_type == BFD_RELOC_ARM_T32_IMMEDIATE)
11556 newimm = encode_thumb32_immediate (value);
11557 if (newimm == (unsigned int) FAIL)
11558 newimm = thumb32_negate_data_op (&newval, value);
11562 /* 12 bit immediate for addw/subw. */
11566 newval ^= 0x00a00000;
11569 newimm = (unsigned int) FAIL;
11574 if (newimm == (unsigned int)FAIL)
11576 as_bad_where (fixP->fx_file, fixP->fx_line,
11577 _("invalid constant (%lx) after fixup"),
11578 (unsigned long) value);
11582 newval |= (newimm & 0x800) << 15;
11583 newval |= (newimm & 0x700) << 4;
11584 newval |= (newimm & 0x0ff);
11586 md_number_to_chars (buf, (valueT) ((newval >> 16) & 0xffff), THUMB_SIZE);
11587 md_number_to_chars (buf+2, (valueT) (newval & 0xffff), THUMB_SIZE);
11590 case BFD_RELOC_ARM_SMC:
11591 if (((unsigned long) value) > 0xffff)
11592 as_bad_where (fixP->fx_file, fixP->fx_line,
11593 _("invalid smc expression"));
11594 newval = md_chars_to_number (buf, INSN_SIZE);
11595 newval |= (value & 0xf) | ((value & 0xfff0) << 4);
11596 md_number_to_chars (buf, newval, INSN_SIZE);
11599 case BFD_RELOC_ARM_SWI:
11600 if (fixP->tc_fix_data != 0)
11602 if (((unsigned long) value) > 0xff)
11603 as_bad_where (fixP->fx_file, fixP->fx_line,
11604 _("invalid swi expression"));
11605 newval = md_chars_to_number (buf, THUMB_SIZE);
11607 md_number_to_chars (buf, newval, THUMB_SIZE);
11611 if (((unsigned long) value) > 0x00ffffff)
11612 as_bad_where (fixP->fx_file, fixP->fx_line,
11613 _("invalid swi expression"));
11614 newval = md_chars_to_number (buf, INSN_SIZE);
11616 md_number_to_chars (buf, newval, INSN_SIZE);
11620 case BFD_RELOC_ARM_MULTI:
11621 if (((unsigned long) value) > 0xffff)
11622 as_bad_where (fixP->fx_file, fixP->fx_line,
11623 _("invalid expression in load/store multiple"));
11624 newval = value | md_chars_to_number (buf, INSN_SIZE);
11625 md_number_to_chars (buf, newval, INSN_SIZE);
11629 case BFD_RELOC_ARM_PCREL_CALL:
11630 newval = md_chars_to_number (buf, INSN_SIZE);
11631 if ((newval & 0xf0000000) == 0xf0000000)
11635 goto arm_branch_common;
11637 case BFD_RELOC_ARM_PCREL_JUMP:
11638 case BFD_RELOC_ARM_PLT32:
11640 case BFD_RELOC_ARM_PCREL_BRANCH:
11642 goto arm_branch_common;
11644 case BFD_RELOC_ARM_PCREL_BLX:
11647 /* We are going to store value (shifted right by two) in the
11648 instruction, in a 24 bit, signed field. Bits 26 through 32 either
11649 all clear or all set and bit 0 must be clear. For B/BL bit 1 must
11650 also be be clear. */
11652 as_bad_where (fixP->fx_file, fixP->fx_line,
11653 _("misaligned branch destination"));
11654 if ((value & (offsetT)0xfe000000) != (offsetT)0
11655 && (value & (offsetT)0xfe000000) != (offsetT)0xfe000000)
11656 as_bad_where (fixP->fx_file, fixP->fx_line,
11657 _("branch out of range"));
11659 if (fixP->fx_done || !seg->use_rela_p)
11661 newval = md_chars_to_number (buf, INSN_SIZE);
11662 newval |= (value >> 2) & 0x00ffffff;
11663 md_number_to_chars (buf, newval, INSN_SIZE);
11667 case BFD_RELOC_THUMB_PCREL_BRANCH7: /* CZB */
11668 /* CZB can only branch forward. */
11670 as_bad_where (fixP->fx_file, fixP->fx_line,
11671 _("branch out of range"));
11673 if (fixP->fx_done || !seg->use_rela_p)
11675 newval = md_chars_to_number (buf, THUMB_SIZE);
11676 newval |= ((value & 0x2e) << 2) | ((value & 0x40) << 3);
11677 md_number_to_chars (buf, newval, THUMB_SIZE);
11681 case BFD_RELOC_THUMB_PCREL_BRANCH9: /* Conditional branch. */
11682 if ((value & ~0xff) && ((value & ~0xff) != ~0xff))
11683 as_bad_where (fixP->fx_file, fixP->fx_line,
11684 _("branch out of range"));
11686 if (fixP->fx_done || !seg->use_rela_p)
11688 newval = md_chars_to_number (buf, THUMB_SIZE);
11689 newval |= (value & 0x1ff) >> 1;
11690 md_number_to_chars (buf, newval, THUMB_SIZE);
11694 case BFD_RELOC_THUMB_PCREL_BRANCH12: /* Unconditional branch. */
11695 if ((value & ~0x7ff) && ((value & ~0x7ff) != ~0x7ff))
11696 as_bad_where (fixP->fx_file, fixP->fx_line,
11697 _("branch out of range"));
11699 if (fixP->fx_done || !seg->use_rela_p)
11701 newval = md_chars_to_number (buf, THUMB_SIZE);
11702 newval |= (value & 0xfff) >> 1;
11703 md_number_to_chars (buf, newval, THUMB_SIZE);
11707 case BFD_RELOC_THUMB_PCREL_BRANCH20:
11708 if ((value & ~0x1fffff) && ((value & ~0x1fffff) != ~0x1fffff))
11709 as_bad_where (fixP->fx_file, fixP->fx_line,
11710 _("conditional branch out of range"));
11712 if (fixP->fx_done || !seg->use_rela_p)
11715 addressT S, J1, J2, lo, hi;
11717 S = (value & 0x00100000) >> 20;
11718 J2 = (value & 0x00080000) >> 19;
11719 J1 = (value & 0x00040000) >> 18;
11720 hi = (value & 0x0003f000) >> 12;
11721 lo = (value & 0x00000ffe) >> 1;
11723 newval = md_chars_to_number (buf, THUMB_SIZE);
11724 newval2 = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
11725 newval |= (S << 10) | hi;
11726 newval2 |= (J1 << 13) | (J2 << 11) | lo;
11727 md_number_to_chars (buf, newval, THUMB_SIZE);
11728 md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE);
11732 case BFD_RELOC_THUMB_PCREL_BLX:
11733 case BFD_RELOC_THUMB_PCREL_BRANCH23:
11734 if ((value & ~0x3fffff) && ((value & ~0x3fffff) != ~0x3fffff))
11735 as_bad_where (fixP->fx_file, fixP->fx_line,
11736 _("branch out of range"));
11738 if (fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BLX)
11739 /* For a BLX instruction, make sure that the relocation is rounded up
11740 to a word boundary. This follows the semantics of the instruction
11741 which specifies that bit 1 of the target address will come from bit
11742 1 of the base address. */
11743 value = (value + 1) & ~ 1;
11745 if (fixP->fx_done || !seg->use_rela_p)
11749 newval = md_chars_to_number (buf, THUMB_SIZE);
11750 newval2 = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
11751 newval |= (value & 0x7fffff) >> 12;
11752 newval2 |= (value & 0xfff) >> 1;
11753 md_number_to_chars (buf, newval, THUMB_SIZE);
11754 md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE);
11758 case BFD_RELOC_THUMB_PCREL_BRANCH25:
11759 if ((value & ~0x1ffffff) && ((value & ~0x1ffffff) != ~0x1ffffff))
11760 as_bad_where (fixP->fx_file, fixP->fx_line,
11761 _("branch out of range"));
11763 if (fixP->fx_done || !seg->use_rela_p)
11766 addressT S, I1, I2, lo, hi;
11768 S = (value & 0x01000000) >> 24;
11769 I1 = (value & 0x00800000) >> 23;
11770 I2 = (value & 0x00400000) >> 22;
11771 hi = (value & 0x003ff000) >> 12;
11772 lo = (value & 0x00000ffe) >> 1;
11777 newval = md_chars_to_number (buf, THUMB_SIZE);
11778 newval2 = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
11779 newval |= (S << 10) | hi;
11780 newval2 |= (I1 << 13) | (I2 << 11) | lo;
11781 md_number_to_chars (buf, newval, THUMB_SIZE);
11782 md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE);
11787 if (fixP->fx_done || !seg->use_rela_p)
11788 md_number_to_chars (buf, value, 1);
11792 if (fixP->fx_done || !seg->use_rela_p)
11793 md_number_to_chars (buf, value, 2);
11797 case BFD_RELOC_ARM_TLS_GD32:
11798 case BFD_RELOC_ARM_TLS_LE32:
11799 case BFD_RELOC_ARM_TLS_IE32:
11800 case BFD_RELOC_ARM_TLS_LDM32:
11801 case BFD_RELOC_ARM_TLS_LDO32:
11802 S_SET_THREAD_LOCAL (fixP->fx_addsy);
11805 case BFD_RELOC_ARM_GOT32:
11806 case BFD_RELOC_ARM_GOTOFF:
11807 case BFD_RELOC_ARM_TARGET2:
11808 if (fixP->fx_done || !seg->use_rela_p)
11809 md_number_to_chars (buf, 0, 4);
11813 case BFD_RELOC_RVA:
11815 case BFD_RELOC_ARM_TARGET1:
11816 case BFD_RELOC_ARM_ROSEGREL32:
11817 case BFD_RELOC_ARM_SBREL32:
11818 case BFD_RELOC_32_PCREL:
11819 if (fixP->fx_done || !seg->use_rela_p)
11820 md_number_to_chars (buf, value, 4);
11824 case BFD_RELOC_ARM_PREL31:
11825 if (fixP->fx_done || !seg->use_rela_p)
11827 newval = md_chars_to_number (buf, 4) & 0x80000000;
11828 if ((value ^ (value >> 1)) & 0x40000000)
11830 as_bad_where (fixP->fx_file, fixP->fx_line,
11831 _("rel31 relocation overflow"));
11833 newval |= value & 0x7fffffff;
11834 md_number_to_chars (buf, newval, 4);
11839 case BFD_RELOC_ARM_CP_OFF_IMM:
11840 case BFD_RELOC_ARM_T32_CP_OFF_IMM:
11841 if (value < -1023 || value > 1023 || (value & 3))
11842 as_bad_where (fixP->fx_file, fixP->fx_line,
11843 _("co-processor offset out of range"));
11848 if (fixP->fx_r_type == BFD_RELOC_ARM_CP_OFF_IMM
11849 || fixP->fx_r_type == BFD_RELOC_ARM_CP_OFF_IMM_S2)
11850 newval = md_chars_to_number (buf, INSN_SIZE);
11852 newval = get_thumb32_insn (buf);
11853 newval &= 0xff7fff00;
11854 newval |= (value >> 2) | (sign ? INDEX_UP : 0);
11856 newval &= ~WRITE_BACK;
11857 if (fixP->fx_r_type == BFD_RELOC_ARM_CP_OFF_IMM
11858 || fixP->fx_r_type == BFD_RELOC_ARM_CP_OFF_IMM_S2)
11859 md_number_to_chars (buf, newval, INSN_SIZE);
11861 put_thumb32_insn (buf, newval);
11864 case BFD_RELOC_ARM_CP_OFF_IMM_S2:
11865 case BFD_RELOC_ARM_T32_CP_OFF_IMM_S2:
11866 if (value < -255 || value > 255)
11867 as_bad_where (fixP->fx_file, fixP->fx_line,
11868 _("co-processor offset out of range"));
11869 goto cp_off_common;
11871 case BFD_RELOC_ARM_THUMB_OFFSET:
11872 newval = md_chars_to_number (buf, THUMB_SIZE);
11873 /* Exactly what ranges, and where the offset is inserted depends
11874 on the type of instruction, we can establish this from the
11876 switch (newval >> 12)
11878 case 4: /* PC load. */
11879 /* Thumb PC loads are somewhat odd, bit 1 of the PC is
11880 forced to zero for these loads; md_pcrel_from has already
11881 compensated for this. */
11883 as_bad_where (fixP->fx_file, fixP->fx_line,
11884 _("invalid offset, target not word aligned (0x%08lX)"),
11885 (((unsigned long) fixP->fx_frag->fr_address
11886 + (unsigned long) fixP->fx_where) & ~3)
11887 + (unsigned long) value);
11889 if (value & ~0x3fc)
11890 as_bad_where (fixP->fx_file, fixP->fx_line,
11891 _("invalid offset, value too big (0x%08lX)"),
11894 newval |= value >> 2;
11897 case 9: /* SP load/store. */
11898 if (value & ~0x3fc)
11899 as_bad_where (fixP->fx_file, fixP->fx_line,
11900 _("invalid offset, value too big (0x%08lX)"),
11902 newval |= value >> 2;
11905 case 6: /* Word load/store. */
11907 as_bad_where (fixP->fx_file, fixP->fx_line,
11908 _("invalid offset, value too big (0x%08lX)"),
11910 newval |= value << 4; /* 6 - 2. */
11913 case 7: /* Byte load/store. */
11915 as_bad_where (fixP->fx_file, fixP->fx_line,
11916 _("invalid offset, value too big (0x%08lX)"),
11918 newval |= value << 6;
11921 case 8: /* Halfword load/store. */
11923 as_bad_where (fixP->fx_file, fixP->fx_line,
11924 _("invalid offset, value too big (0x%08lX)"),
11926 newval |= value << 5; /* 6 - 1. */
11930 as_bad_where (fixP->fx_file, fixP->fx_line,
11931 "Unable to process relocation for thumb opcode: %lx",
11932 (unsigned long) newval);
11935 md_number_to_chars (buf, newval, THUMB_SIZE);
11938 case BFD_RELOC_ARM_THUMB_ADD:
11939 /* This is a complicated relocation, since we use it for all of
11940 the following immediate relocations:
11944 9bit ADD/SUB SP word-aligned
11945 10bit ADD PC/SP word-aligned
11947 The type of instruction being processed is encoded in the
11954 newval = md_chars_to_number (buf, THUMB_SIZE);
11956 int rd = (newval >> 4) & 0xf;
11957 int rs = newval & 0xf;
11958 int subtract = !!(newval & 0x8000);
11960 /* Check for HI regs, only very restricted cases allowed:
11961 Adjusting SP, and using PC or SP to get an address. */
11962 if ((rd > 7 && (rd != REG_SP || rs != REG_SP))
11963 || (rs > 7 && rs != REG_SP && rs != REG_PC))
11964 as_bad_where (fixP->fx_file, fixP->fx_line,
11965 _("invalid Hi register with immediate"));
11967 /* If value is negative, choose the opposite instruction. */
11971 subtract = !subtract;
11973 as_bad_where (fixP->fx_file, fixP->fx_line,
11974 _("immediate value out of range"));
11979 if (value & ~0x1fc)
11980 as_bad_where (fixP->fx_file, fixP->fx_line,
11981 _("invalid immediate for stack address calculation"));
11982 newval = subtract ? T_OPCODE_SUB_ST : T_OPCODE_ADD_ST;
11983 newval |= value >> 2;
11985 else if (rs == REG_PC || rs == REG_SP)
11987 if (subtract || value & ~0x3fc)
11988 as_bad_where (fixP->fx_file, fixP->fx_line,
11989 _("invalid immediate for address calculation (value = 0x%08lX)"),
11990 (unsigned long) value);
11991 newval = (rs == REG_PC ? T_OPCODE_ADD_PC : T_OPCODE_ADD_SP);
11993 newval |= value >> 2;
11998 as_bad_where (fixP->fx_file, fixP->fx_line,
11999 _("immediate value out of range"));
12000 newval = subtract ? T_OPCODE_SUB_I8 : T_OPCODE_ADD_I8;
12001 newval |= (rd << 8) | value;
12006 as_bad_where (fixP->fx_file, fixP->fx_line,
12007 _("immediate value out of range"));
12008 newval = subtract ? T_OPCODE_SUB_I3 : T_OPCODE_ADD_I3;
12009 newval |= rd | (rs << 3) | (value << 6);
12012 md_number_to_chars (buf, newval, THUMB_SIZE);
12015 case BFD_RELOC_ARM_THUMB_IMM:
12016 newval = md_chars_to_number (buf, THUMB_SIZE);
12017 if (value < 0 || value > 255)
12018 as_bad_where (fixP->fx_file, fixP->fx_line,
12019 _("invalid immediate: %ld is too large"),
12022 md_number_to_chars (buf, newval, THUMB_SIZE);
12025 case BFD_RELOC_ARM_THUMB_SHIFT:
12026 /* 5bit shift value (0..32). LSL cannot take 32. */
12027 newval = md_chars_to_number (buf, THUMB_SIZE) & 0xf83f;
12028 temp = newval & 0xf800;
12029 if (value < 0 || value > 32 || (value == 32 && temp == T_OPCODE_LSL_I))
12030 as_bad_where (fixP->fx_file, fixP->fx_line,
12031 _("invalid shift value: %ld"), (long) value);
12032 /* Shifts of zero must be encoded as LSL. */
12034 newval = (newval & 0x003f) | T_OPCODE_LSL_I;
12035 /* Shifts of 32 are encoded as zero. */
12036 else if (value == 32)
12038 newval |= value << 6;
12039 md_number_to_chars (buf, newval, THUMB_SIZE);
12042 case BFD_RELOC_VTABLE_INHERIT:
12043 case BFD_RELOC_VTABLE_ENTRY:
12047 case BFD_RELOC_UNUSED:
12049 as_bad_where (fixP->fx_file, fixP->fx_line,
12050 _("bad relocation fixup type (%d)"), fixP->fx_r_type);
12054 /* Translate internal representation of relocation info to BFD target
12058 tc_gen_reloc (asection * section ATTRIBUTE_UNUSED,
12062 bfd_reloc_code_real_type code;
12064 reloc = xmalloc (sizeof (arelent));
12066 reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
12067 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
12068 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
12070 if (fixp->fx_pcrel)
12071 fixp->fx_offset = reloc->address;
12072 reloc->addend = fixp->fx_offset;
12074 switch (fixp->fx_r_type)
12077 if (fixp->fx_pcrel)
12079 code = BFD_RELOC_8_PCREL;
12084 if (fixp->fx_pcrel)
12086 code = BFD_RELOC_16_PCREL;
12091 if (fixp->fx_pcrel)
12093 code = BFD_RELOC_32_PCREL;
12097 case BFD_RELOC_NONE:
12098 case BFD_RELOC_ARM_PCREL_BRANCH:
12099 case BFD_RELOC_ARM_PCREL_BLX:
12100 case BFD_RELOC_RVA:
12101 case BFD_RELOC_THUMB_PCREL_BRANCH7:
12102 case BFD_RELOC_THUMB_PCREL_BRANCH9:
12103 case BFD_RELOC_THUMB_PCREL_BRANCH12:
12104 case BFD_RELOC_THUMB_PCREL_BRANCH20:
12105 case BFD_RELOC_THUMB_PCREL_BRANCH23:
12106 case BFD_RELOC_THUMB_PCREL_BRANCH25:
12107 case BFD_RELOC_THUMB_PCREL_BLX:
12108 case BFD_RELOC_VTABLE_ENTRY:
12109 case BFD_RELOC_VTABLE_INHERIT:
12110 code = fixp->fx_r_type;
12113 case BFD_RELOC_ARM_LITERAL:
12114 case BFD_RELOC_ARM_HWLITERAL:
12115 /* If this is called then the a literal has
12116 been referenced across a section boundary. */
12117 as_bad_where (fixp->fx_file, fixp->fx_line,
12118 _("literal referenced across section boundary"));
12122 case BFD_RELOC_ARM_GOT32:
12123 case BFD_RELOC_ARM_GOTOFF:
12124 case BFD_RELOC_ARM_PLT32:
12125 case BFD_RELOC_ARM_TARGET1:
12126 case BFD_RELOC_ARM_ROSEGREL32:
12127 case BFD_RELOC_ARM_SBREL32:
12128 case BFD_RELOC_ARM_PREL31:
12129 case BFD_RELOC_ARM_TARGET2:
12130 case BFD_RELOC_ARM_TLS_LE32:
12131 case BFD_RELOC_ARM_TLS_LDO32:
12132 case BFD_RELOC_ARM_PCREL_CALL:
12133 case BFD_RELOC_ARM_PCREL_JUMP:
12134 code = fixp->fx_r_type;
12137 case BFD_RELOC_ARM_TLS_GD32:
12138 case BFD_RELOC_ARM_TLS_IE32:
12139 case BFD_RELOC_ARM_TLS_LDM32:
12140 /* BFD will include the symbol's address in the addend.
12141 But we don't want that, so subtract it out again here. */
12142 if (!S_IS_COMMON (fixp->fx_addsy))
12143 reloc->addend -= (*reloc->sym_ptr_ptr)->value;
12144 code = fixp->fx_r_type;
12148 case BFD_RELOC_ARM_IMMEDIATE:
12149 as_bad_where (fixp->fx_file, fixp->fx_line,
12150 _("internal relocation (type: IMMEDIATE) not fixed up"));
12153 case BFD_RELOC_ARM_ADRL_IMMEDIATE:
12154 as_bad_where (fixp->fx_file, fixp->fx_line,
12155 _("ADRL used for a symbol not defined in the same file"));
12158 case BFD_RELOC_ARM_OFFSET_IMM:
12159 if (fixp->fx_addsy != NULL
12160 && !S_IS_DEFINED (fixp->fx_addsy)
12161 && S_IS_LOCAL (fixp->fx_addsy))
12163 as_bad_where (fixp->fx_file, fixp->fx_line,
12164 _("undefined local label `%s'"),
12165 S_GET_NAME (fixp->fx_addsy));
12169 as_bad_where (fixp->fx_file, fixp->fx_line,
12170 _("internal_relocation (type: OFFSET_IMM) not fixed up"));
12177 switch (fixp->fx_r_type)
12179 case BFD_RELOC_NONE: type = "NONE"; break;
12180 case BFD_RELOC_ARM_OFFSET_IMM8: type = "OFFSET_IMM8"; break;
12181 case BFD_RELOC_ARM_SHIFT_IMM: type = "SHIFT_IMM"; break;
12182 case BFD_RELOC_ARM_SMC: type = "SMC"; break;
12183 case BFD_RELOC_ARM_SWI: type = "SWI"; break;
12184 case BFD_RELOC_ARM_MULTI: type = "MULTI"; break;
12185 case BFD_RELOC_ARM_CP_OFF_IMM: type = "CP_OFF_IMM"; break;
12186 case BFD_RELOC_ARM_T32_CP_OFF_IMM: type = "T32_CP_OFF_IMM"; break;
12187 case BFD_RELOC_ARM_THUMB_ADD: type = "THUMB_ADD"; break;
12188 case BFD_RELOC_ARM_THUMB_SHIFT: type = "THUMB_SHIFT"; break;
12189 case BFD_RELOC_ARM_THUMB_IMM: type = "THUMB_IMM"; break;
12190 case BFD_RELOC_ARM_THUMB_OFFSET: type = "THUMB_OFFSET"; break;
12191 default: type = _("<unknown>"); break;
12193 as_bad_where (fixp->fx_file, fixp->fx_line,
12194 _("cannot represent %s relocation in this object file format"),
12201 if ((code == BFD_RELOC_32_PCREL || code == BFD_RELOC_32)
12203 && fixp->fx_addsy == GOT_symbol)
12205 code = BFD_RELOC_ARM_GOTPC;
12206 reloc->addend = fixp->fx_offset = reloc->address;
12210 reloc->howto = bfd_reloc_type_lookup (stdoutput, code);
12212 if (reloc->howto == NULL)
12214 as_bad_where (fixp->fx_file, fixp->fx_line,
12215 _("cannot represent %s relocation in this object file format"),
12216 bfd_get_reloc_code_name (code));
12220 /* HACK: Since arm ELF uses Rel instead of Rela, encode the
12221 vtable entry to be used in the relocation's section offset. */
12222 if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
12223 reloc->address = fixp->fx_offset;
12228 /* This fix_new is called by cons via TC_CONS_FIX_NEW. */
12231 cons_fix_new_arm (fragS * frag,
12236 bfd_reloc_code_real_type type;
12240 FIXME: @@ Should look at CPU word size. */
12244 type = BFD_RELOC_8;
12247 type = BFD_RELOC_16;
12251 type = BFD_RELOC_32;
12254 type = BFD_RELOC_64;
12258 fix_new_exp (frag, where, (int) size, exp, pcrel, type);
12261 #if defined OBJ_COFF || defined OBJ_ELF
12263 arm_validate_fix (fixS * fixP)
12265 /* If the destination of the branch is a defined symbol which does not have
12266 the THUMB_FUNC attribute, then we must be calling a function which has
12267 the (interfacearm) attribute. We look for the Thumb entry point to that
12268 function and change the branch to refer to that function instead. */
12269 if (fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BRANCH23
12270 && fixP->fx_addsy != NULL
12271 && S_IS_DEFINED (fixP->fx_addsy)
12272 && ! THUMB_IS_FUNC (fixP->fx_addsy))
12274 fixP->fx_addsy = find_real_start (fixP->fx_addsy);
12280 arm_force_relocation (struct fix * fixp)
12282 #if defined (OBJ_COFF) && defined (TE_PE)
12283 if (fixp->fx_r_type == BFD_RELOC_RVA)
12287 /* Resolve these relocations even if the symbol is extern or weak. */
12288 if (fixp->fx_r_type == BFD_RELOC_ARM_IMMEDIATE
12289 || fixp->fx_r_type == BFD_RELOC_ARM_OFFSET_IMM
12290 || fixp->fx_r_type == BFD_RELOC_ARM_ADRL_IMMEDIATE
12291 || fixp->fx_r_type == BFD_RELOC_ARM_T32_IMMEDIATE
12292 || fixp->fx_r_type == BFD_RELOC_ARM_T32_IMM12
12293 || fixp->fx_r_type == BFD_RELOC_ARM_T32_ADD_PC12)
12296 return generic_force_reloc (fixp);
12300 /* This is a little hack to help the gas/arm/adrl.s test. It prevents
12301 local labels from being added to the output symbol table when they
12302 are used with the ADRL pseudo op. The ADRL relocation should always
12303 be resolved before the binbary is emitted, so it is safe to say that
12304 it is adjustable. */
12307 arm_fix_adjustable (fixS * fixP)
12309 if (fixP->fx_r_type == BFD_RELOC_ARM_ADRL_IMMEDIATE)
12316 /* Relocations against Thumb function names must be left unadjusted,
12317 so that the linker can use this information to correctly set the
12318 bottom bit of their addresses. The MIPS version of this function
12319 also prevents relocations that are mips-16 specific, but I do not
12320 know why it does this.
12323 There is one other problem that ought to be addressed here, but
12324 which currently is not: Taking the address of a label (rather
12325 than a function) and then later jumping to that address. Such
12326 addresses also ought to have their bottom bit set (assuming that
12327 they reside in Thumb code), but at the moment they will not. */
12330 arm_fix_adjustable (fixS * fixP)
12332 if (fixP->fx_addsy == NULL)
12335 if (THUMB_IS_FUNC (fixP->fx_addsy)
12336 && fixP->fx_subsy == NULL)
12339 /* We need the symbol name for the VTABLE entries. */
12340 if ( fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT
12341 || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
12344 /* Don't allow symbols to be discarded on GOT related relocs. */
12345 if (fixP->fx_r_type == BFD_RELOC_ARM_PLT32
12346 || fixP->fx_r_type == BFD_RELOC_ARM_GOT32
12347 || fixP->fx_r_type == BFD_RELOC_ARM_GOTOFF
12348 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_GD32
12349 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_LE32
12350 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_IE32
12351 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_LDM32
12352 || fixP->fx_r_type == BFD_RELOC_ARM_TLS_LDO32
12353 || fixP->fx_r_type == BFD_RELOC_ARM_TARGET2)
12360 elf32_arm_target_format (void)
12363 return (target_big_endian
12364 ? "elf32-bigarm-symbian"
12365 : "elf32-littlearm-symbian");
12366 #elif defined (TE_VXWORKS)
12367 return (target_big_endian
12368 ? "elf32-bigarm-vxworks"
12369 : "elf32-littlearm-vxworks");
12371 if (target_big_endian)
12372 return "elf32-bigarm";
12374 return "elf32-littlearm";
12379 armelf_frob_symbol (symbolS * symp,
12382 elf_frob_symbol (symp, puntp);
12386 /* MD interface: Finalization. */
12388 /* A good place to do this, although this was probably not intended
12389 for this kind of use. We need to dump the literal pool before
12390 references are made to a null symbol pointer. */
12395 literal_pool * pool;
12397 for (pool = list_of_pools; pool; pool = pool->next)
12399 /* Put it at the end of the relevent section. */
12400 subseg_set (pool->section, pool->sub_section);
12402 arm_elf_change_section ();
12408 /* Adjust the symbol table. This marks Thumb symbols as distinct from
12412 arm_adjust_symtab (void)
12417 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
12419 if (ARM_IS_THUMB (sym))
12421 if (THUMB_IS_FUNC (sym))
12423 /* Mark the symbol as a Thumb function. */
12424 if ( S_GET_STORAGE_CLASS (sym) == C_STAT
12425 || S_GET_STORAGE_CLASS (sym) == C_LABEL) /* This can happen! */
12426 S_SET_STORAGE_CLASS (sym, C_THUMBSTATFUNC);
12428 else if (S_GET_STORAGE_CLASS (sym) == C_EXT)
12429 S_SET_STORAGE_CLASS (sym, C_THUMBEXTFUNC);
12431 as_bad (_("%s: unexpected function type: %d"),
12432 S_GET_NAME (sym), S_GET_STORAGE_CLASS (sym));
12434 else switch (S_GET_STORAGE_CLASS (sym))
12437 S_SET_STORAGE_CLASS (sym, C_THUMBEXT);
12440 S_SET_STORAGE_CLASS (sym, C_THUMBSTAT);
12443 S_SET_STORAGE_CLASS (sym, C_THUMBLABEL);
12451 if (ARM_IS_INTERWORK (sym))
12452 coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_flags = 0xFF;
12459 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
12461 if (ARM_IS_THUMB (sym))
12463 elf_symbol_type * elf_sym;
12465 elf_sym = elf_symbol (symbol_get_bfdsym (sym));
12466 bind = ELF_ST_BIND (elf_sym->internal_elf_sym.st_info);
12468 if (! bfd_is_arm_mapping_symbol_name (elf_sym->symbol.name))
12470 /* If it's a .thumb_func, declare it as so,
12471 otherwise tag label as .code 16. */
12472 if (THUMB_IS_FUNC (sym))
12473 elf_sym->internal_elf_sym.st_info =
12474 ELF_ST_INFO (bind, STT_ARM_TFUNC);
12476 elf_sym->internal_elf_sym.st_info =
12477 ELF_ST_INFO (bind, STT_ARM_16BIT);
12484 /* MD interface: Initialization. */
12487 set_constant_flonums (void)
12491 for (i = 0; i < NUM_FLOAT_VALS; i++)
12492 if (atof_ieee ((char *) fp_const[i], 'x', fp_values[i]) == NULL)
12502 if ( (arm_ops_hsh = hash_new ()) == NULL
12503 || (arm_cond_hsh = hash_new ()) == NULL
12504 || (arm_shift_hsh = hash_new ()) == NULL
12505 || (arm_psr_hsh = hash_new ()) == NULL
12506 || (arm_reg_hsh = hash_new ()) == NULL
12507 || (arm_reloc_hsh = hash_new ()) == NULL)
12508 as_fatal (_("virtual memory exhausted"));
12510 for (i = 0; i < sizeof (insns) / sizeof (struct asm_opcode); i++)
12511 hash_insert (arm_ops_hsh, insns[i].template, (PTR) (insns + i));
12512 for (i = 0; i < sizeof (conds) / sizeof (struct asm_cond); i++)
12513 hash_insert (arm_cond_hsh, conds[i].template, (PTR) (conds + i));
12514 for (i = 0; i < sizeof (shift_names) / sizeof (struct asm_shift_name); i++)
12515 hash_insert (arm_shift_hsh, shift_names[i].name, (PTR) (shift_names + i));
12516 for (i = 0; i < sizeof (psrs) / sizeof (struct asm_psr); i++)
12517 hash_insert (arm_psr_hsh, psrs[i].template, (PTR) (psrs + i));
12518 for (i = 0; i < sizeof (reg_names) / sizeof (struct reg_entry); i++)
12519 hash_insert (arm_reg_hsh, reg_names[i].name, (PTR) (reg_names + i));
12521 for (i = 0; i < sizeof (reloc_names) / sizeof (struct reloc_entry); i++)
12522 hash_insert (arm_reloc_hsh, reloc_names[i].name, (PTR) (reloc_names + i));
12525 set_constant_flonums ();
12527 /* Set the cpu variant based on the command-line options. We prefer
12528 -mcpu= over -march= if both are set (as for GCC); and we prefer
12529 -mfpu= over any other way of setting the floating point unit.
12530 Use of legacy options with new options are faulted. */
12533 if (mcpu_cpu_opt || march_cpu_opt)
12534 as_bad (_("use of old and new-style options to set CPU type"));
12536 mcpu_cpu_opt = legacy_cpu;
12538 else if (!mcpu_cpu_opt)
12539 mcpu_cpu_opt = march_cpu_opt;
12544 as_bad (_("use of old and new-style options to set FPU type"));
12546 mfpu_opt = legacy_fpu;
12548 else if (!mfpu_opt)
12550 #if !(defined (TE_LINUX) || defined (TE_NetBSD) || defined (TE_VXWORKS))
12551 /* Some environments specify a default FPU. If they don't, infer it
12552 from the processor. */
12554 mfpu_opt = mcpu_fpu_opt;
12556 mfpu_opt = march_fpu_opt;
12558 mfpu_opt = &fpu_default;
12565 mfpu_opt = &fpu_default;
12566 else if (ARM_CPU_HAS_FEATURE (*mcpu_fpu_opt, arm_ext_v5))
12567 mfpu_opt = &fpu_arch_vfp_v2;
12569 mfpu_opt = &fpu_arch_fpa;
12575 mcpu_cpu_opt = &cpu_default;
12576 selected_cpu = cpu_default;
12580 selected_cpu = *mcpu_cpu_opt;
12582 mcpu_cpu_opt = &arm_arch_any;
12585 ARM_MERGE_FEATURE_SETS (cpu_variant, *mcpu_cpu_opt, *mfpu_opt);
12587 arm_arch_used = thumb_arch_used = arm_arch_none;
12589 #if defined OBJ_COFF || defined OBJ_ELF
12591 unsigned int flags = 0;
12593 #if defined OBJ_ELF
12594 flags = meabi_flags;
12596 switch (meabi_flags)
12598 case EF_ARM_EABI_UNKNOWN:
12600 /* Set the flags in the private structure. */
12601 if (uses_apcs_26) flags |= F_APCS26;
12602 if (support_interwork) flags |= F_INTERWORK;
12603 if (uses_apcs_float) flags |= F_APCS_FLOAT;
12604 if (pic_code) flags |= F_PIC;
12605 if (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_any_hard))
12606 flags |= F_SOFT_FLOAT;
12608 switch (mfloat_abi_opt)
12610 case ARM_FLOAT_ABI_SOFT:
12611 case ARM_FLOAT_ABI_SOFTFP:
12612 flags |= F_SOFT_FLOAT;
12615 case ARM_FLOAT_ABI_HARD:
12616 if (flags & F_SOFT_FLOAT)
12617 as_bad (_("hard-float conflicts with specified fpu"));
12621 /* Using pure-endian doubles (even if soft-float). */
12622 if (ARM_CPU_HAS_FEATURE (cpu_variant, fpu_endian_pure))
12623 flags |= F_VFP_FLOAT;
12625 #if defined OBJ_ELF
12626 if (ARM_CPU_HAS_FEATURE (cpu_variant, fpu_arch_maverick))
12627 flags |= EF_ARM_MAVERICK_FLOAT;
12630 case EF_ARM_EABI_VER4:
12631 /* No additional flags to set. */
12638 bfd_set_private_flags (stdoutput, flags);
12640 /* We have run out flags in the COFF header to encode the
12641 status of ATPCS support, so instead we create a dummy,
12642 empty, debug section called .arm.atpcs. */
12647 sec = bfd_make_section (stdoutput, ".arm.atpcs");
12651 bfd_set_section_flags
12652 (stdoutput, sec, SEC_READONLY | SEC_DEBUGGING /* | SEC_HAS_CONTENTS */);
12653 bfd_set_section_size (stdoutput, sec, 0);
12654 bfd_set_section_contents (stdoutput, sec, NULL, 0, 0);
12660 /* Record the CPU type as well. */
12661 if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_cext_iwmmxt))
12662 mach = bfd_mach_arm_iWMMXt;
12663 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_cext_xscale))
12664 mach = bfd_mach_arm_XScale;
12665 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_cext_maverick))
12666 mach = bfd_mach_arm_ep9312;
12667 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v5e))
12668 mach = bfd_mach_arm_5TE;
12669 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v5))
12671 if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v4t))
12672 mach = bfd_mach_arm_5T;
12674 mach = bfd_mach_arm_5;
12676 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v4))
12678 if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v4t))
12679 mach = bfd_mach_arm_4T;
12681 mach = bfd_mach_arm_4;
12683 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v3m))
12684 mach = bfd_mach_arm_3M;
12685 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v3))
12686 mach = bfd_mach_arm_3;
12687 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v2s))
12688 mach = bfd_mach_arm_2a;
12689 else if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v2))
12690 mach = bfd_mach_arm_2;
12692 mach = bfd_mach_arm_unknown;
12694 bfd_set_arch_mach (stdoutput, TARGET_ARCH, mach);
12697 /* Command line processing. */
12700 Invocation line includes a switch not recognized by the base assembler.
12701 See if it's a processor-specific option.
12703 This routine is somewhat complicated by the need for backwards
12704 compatibility (since older releases of gcc can't be changed).
12705 The new options try to make the interface as compatible as
12708 New options (supported) are:
12710 -mcpu=<cpu name> Assemble for selected processor
12711 -march=<architecture name> Assemble for selected architecture
12712 -mfpu=<fpu architecture> Assemble for selected FPU.
12713 -EB/-mbig-endian Big-endian
12714 -EL/-mlittle-endian Little-endian
12715 -k Generate PIC code
12716 -mthumb Start in Thumb mode
12717 -mthumb-interwork Code supports ARM/Thumb interworking
12719 For now we will also provide support for:
12721 -mapcs-32 32-bit Program counter
12722 -mapcs-26 26-bit Program counter
12723 -macps-float Floats passed in FP registers
12724 -mapcs-reentrant Reentrant code
12726 (sometime these will probably be replaced with -mapcs=<list of options>
12727 and -matpcs=<list of options>)
12729 The remaining options are only supported for back-wards compatibility.
12730 Cpu variants, the arm part is optional:
12731 -m[arm]1 Currently not supported.
12732 -m[arm]2, -m[arm]250 Arm 2 and Arm 250 processor
12733 -m[arm]3 Arm 3 processor
12734 -m[arm]6[xx], Arm 6 processors
12735 -m[arm]7[xx][t][[d]m] Arm 7 processors
12736 -m[arm]8[10] Arm 8 processors
12737 -m[arm]9[20][tdmi] Arm 9 processors
12738 -mstrongarm[110[0]] StrongARM processors
12739 -mxscale XScale processors
12740 -m[arm]v[2345[t[e]]] Arm architectures
12741 -mall All (except the ARM1)
12743 -mfpa10, -mfpa11 FPA10 and 11 co-processor instructions
12744 -mfpe-old (No float load/store multiples)
12745 -mvfpxd VFP Single precision
12747 -mno-fpu Disable all floating point instructions
12749 The following CPU names are recognized:
12750 arm1, arm2, arm250, arm3, arm6, arm600, arm610, arm620,
12751 arm7, arm7m, arm7d, arm7dm, arm7di, arm7dmi, arm70, arm700,
12752 arm700i, arm710 arm710t, arm720, arm720t, arm740t, arm710c,
12753 arm7100, arm7500, arm7500fe, arm7tdmi, arm8, arm810, arm9,
12754 arm920, arm920t, arm940t, arm946, arm966, arm9tdmi, arm9e,
12755 arm10t arm10e, arm1020t, arm1020e, arm10200e,
12756 strongarm, strongarm110, strongarm1100, strongarm1110, xscale.
12760 const char * md_shortopts = "m:k";
12762 #ifdef ARM_BI_ENDIAN
12763 #define OPTION_EB (OPTION_MD_BASE + 0)
12764 #define OPTION_EL (OPTION_MD_BASE + 1)
12766 #if TARGET_BYTES_BIG_ENDIAN
12767 #define OPTION_EB (OPTION_MD_BASE + 0)
12769 #define OPTION_EL (OPTION_MD_BASE + 1)
12773 struct option md_longopts[] =
12776 {"EB", no_argument, NULL, OPTION_EB},
12779 {"EL", no_argument, NULL, OPTION_EL},
12781 {NULL, no_argument, NULL, 0}
12784 size_t md_longopts_size = sizeof (md_longopts);
12786 struct arm_option_table
12788 char *option; /* Option name to match. */
12789 char *help; /* Help information. */
12790 int *var; /* Variable to change. */
12791 int value; /* What to change it to. */
12792 char *deprecated; /* If non-null, print this message. */
12795 struct arm_option_table arm_opts[] =
12797 {"k", N_("generate PIC code"), &pic_code, 1, NULL},
12798 {"mthumb", N_("assemble Thumb code"), &thumb_mode, 1, NULL},
12799 {"mthumb-interwork", N_("support ARM/Thumb interworking"),
12800 &support_interwork, 1, NULL},
12801 {"mapcs-32", N_("code uses 32-bit program counter"), &uses_apcs_26, 0, NULL},
12802 {"mapcs-26", N_("code uses 26-bit program counter"), &uses_apcs_26, 1, NULL},
12803 {"mapcs-float", N_("floating point args are in fp regs"), &uses_apcs_float,
12805 {"mapcs-reentrant", N_("re-entrant code"), &pic_code, 1, NULL},
12806 {"matpcs", N_("code is ATPCS conformant"), &atpcs, 1, NULL},
12807 {"mbig-endian", N_("assemble for big-endian"), &target_big_endian, 1, NULL},
12808 {"mlittle-endian", N_("assemble for little-endian"), &target_big_endian, 0,
12811 /* These are recognized by the assembler, but have no affect on code. */
12812 {"mapcs-frame", N_("use frame pointer"), NULL, 0, NULL},
12813 {"mapcs-stack-check", N_("use stack size checking"), NULL, 0, NULL},
12814 {NULL, NULL, NULL, 0, NULL}
12817 struct arm_legacy_option_table
12819 char *option; /* Option name to match. */
12820 const arm_feature_set **var; /* Variable to change. */
12821 const arm_feature_set value; /* What to change it to. */
12822 char *deprecated; /* If non-null, print this message. */
12825 const struct arm_legacy_option_table arm_legacy_opts[] =
12827 /* DON'T add any new processors to this list -- we want the whole list
12828 to go away... Add them to the processors table instead. */
12829 {"marm1", &legacy_cpu, ARM_ARCH_V1, N_("use -mcpu=arm1")},
12830 {"m1", &legacy_cpu, ARM_ARCH_V1, N_("use -mcpu=arm1")},
12831 {"marm2", &legacy_cpu, ARM_ARCH_V2, N_("use -mcpu=arm2")},
12832 {"m2", &legacy_cpu, ARM_ARCH_V2, N_("use -mcpu=arm2")},
12833 {"marm250", &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm250")},
12834 {"m250", &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm250")},
12835 {"marm3", &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm3")},
12836 {"m3", &legacy_cpu, ARM_ARCH_V2S, N_("use -mcpu=arm3")},
12837 {"marm6", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm6")},
12838 {"m6", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm6")},
12839 {"marm600", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm600")},
12840 {"m600", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm600")},
12841 {"marm610", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm610")},
12842 {"m610", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm610")},
12843 {"marm620", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm620")},
12844 {"m620", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm620")},
12845 {"marm7", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7")},
12846 {"m7", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7")},
12847 {"marm70", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm70")},
12848 {"m70", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm70")},
12849 {"marm700", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700")},
12850 {"m700", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700")},
12851 {"marm700i", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700i")},
12852 {"m700i", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm700i")},
12853 {"marm710", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710")},
12854 {"m710", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710")},
12855 {"marm710c", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710c")},
12856 {"m710c", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm710c")},
12857 {"marm720", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm720")},
12858 {"m720", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm720")},
12859 {"marm7d", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7d")},
12860 {"m7d", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7d")},
12861 {"marm7di", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7di")},
12862 {"m7di", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7di")},
12863 {"marm7m", &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7m")},
12864 {"m7m", &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7m")},
12865 {"marm7dm", &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dm")},
12866 {"m7dm", &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dm")},
12867 {"marm7dmi", &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dmi")},
12868 {"m7dmi", &legacy_cpu, ARM_ARCH_V3M, N_("use -mcpu=arm7dmi")},
12869 {"marm7100", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7100")},
12870 {"m7100", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7100")},
12871 {"marm7500", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500")},
12872 {"m7500", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500")},
12873 {"marm7500fe", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500fe")},
12874 {"m7500fe", &legacy_cpu, ARM_ARCH_V3, N_("use -mcpu=arm7500fe")},
12875 {"marm7t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
12876 {"m7t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
12877 {"marm7tdmi", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
12878 {"m7tdmi", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm7tdmi")},
12879 {"marm710t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm710t")},
12880 {"m710t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm710t")},
12881 {"marm720t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm720t")},
12882 {"m720t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm720t")},
12883 {"marm740t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm740t")},
12884 {"m740t", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm740t")},
12885 {"marm8", &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm8")},
12886 {"m8", &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm8")},
12887 {"marm810", &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm810")},
12888 {"m810", &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=arm810")},
12889 {"marm9", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9")},
12890 {"m9", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9")},
12891 {"marm9tdmi", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9tdmi")},
12892 {"m9tdmi", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm9tdmi")},
12893 {"marm920", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm920")},
12894 {"m920", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm920")},
12895 {"marm940", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm940")},
12896 {"m940", &legacy_cpu, ARM_ARCH_V4T, N_("use -mcpu=arm940")},
12897 {"mstrongarm", &legacy_cpu, ARM_ARCH_V4, N_("use -mcpu=strongarm")},
12898 {"mstrongarm110", &legacy_cpu, ARM_ARCH_V4,
12899 N_("use -mcpu=strongarm110")},
12900 {"mstrongarm1100", &legacy_cpu, ARM_ARCH_V4,
12901 N_("use -mcpu=strongarm1100")},
12902 {"mstrongarm1110", &legacy_cpu, ARM_ARCH_V4,
12903 N_("use -mcpu=strongarm1110")},
12904 {"mxscale", &legacy_cpu, ARM_ARCH_XSCALE, N_("use -mcpu=xscale")},
12905 {"miwmmxt", &legacy_cpu, ARM_ARCH_IWMMXT, N_("use -mcpu=iwmmxt")},
12906 {"mall", &legacy_cpu, ARM_ANY, N_("use -mcpu=all")},
12908 /* Architecture variants -- don't add any more to this list either. */
12909 {"mv2", &legacy_cpu, ARM_ARCH_V2, N_("use -march=armv2")},
12910 {"marmv2", &legacy_cpu, ARM_ARCH_V2, N_("use -march=armv2")},
12911 {"mv2a", &legacy_cpu, ARM_ARCH_V2S, N_("use -march=armv2a")},
12912 {"marmv2a", &legacy_cpu, ARM_ARCH_V2S, N_("use -march=armv2a")},
12913 {"mv3", &legacy_cpu, ARM_ARCH_V3, N_("use -march=armv3")},
12914 {"marmv3", &legacy_cpu, ARM_ARCH_V3, N_("use -march=armv3")},
12915 {"mv3m", &legacy_cpu, ARM_ARCH_V3M, N_("use -march=armv3m")},
12916 {"marmv3m", &legacy_cpu, ARM_ARCH_V3M, N_("use -march=armv3m")},
12917 {"mv4", &legacy_cpu, ARM_ARCH_V4, N_("use -march=armv4")},
12918 {"marmv4", &legacy_cpu, ARM_ARCH_V4, N_("use -march=armv4")},
12919 {"mv4t", &legacy_cpu, ARM_ARCH_V4T, N_("use -march=armv4t")},
12920 {"marmv4t", &legacy_cpu, ARM_ARCH_V4T, N_("use -march=armv4t")},
12921 {"mv5", &legacy_cpu, ARM_ARCH_V5, N_("use -march=armv5")},
12922 {"marmv5", &legacy_cpu, ARM_ARCH_V5, N_("use -march=armv5")},
12923 {"mv5t", &legacy_cpu, ARM_ARCH_V5T, N_("use -march=armv5t")},
12924 {"marmv5t", &legacy_cpu, ARM_ARCH_V5T, N_("use -march=armv5t")},
12925 {"mv5e", &legacy_cpu, ARM_ARCH_V5TE, N_("use -march=armv5te")},
12926 {"marmv5e", &legacy_cpu, ARM_ARCH_V5TE, N_("use -march=armv5te")},
12928 /* Floating point variants -- don't add any more to this list either. */
12929 {"mfpe-old", &legacy_fpu, FPU_ARCH_FPE, N_("use -mfpu=fpe")},
12930 {"mfpa10", &legacy_fpu, FPU_ARCH_FPA, N_("use -mfpu=fpa10")},
12931 {"mfpa11", &legacy_fpu, FPU_ARCH_FPA, N_("use -mfpu=fpa11")},
12932 {"mno-fpu", &legacy_fpu, ARM_ARCH_NONE,
12933 N_("use either -mfpu=softfpa or -mfpu=softvfp")},
12935 {NULL, NULL, ARM_ARCH_NONE, NULL}
12938 struct arm_cpu_option_table
12941 const arm_feature_set value;
12942 /* For some CPUs we assume an FPU unless the user explicitly sets
12944 const arm_feature_set default_fpu;
12945 /* The canonical name of the CPU, or NULL to use NAME converted to upper
12947 const char *canonical_name;
12950 /* This list should, at a minimum, contain all the cpu names
12951 recognized by GCC. */
12952 static const struct arm_cpu_option_table arm_cpus[] =
12954 {"all", ARM_ANY, FPU_ARCH_FPA, NULL},
12955 {"arm1", ARM_ARCH_V1, FPU_ARCH_FPA, NULL},
12956 {"arm2", ARM_ARCH_V2, FPU_ARCH_FPA, NULL},
12957 {"arm250", ARM_ARCH_V2S, FPU_ARCH_FPA, NULL},
12958 {"arm3", ARM_ARCH_V2S, FPU_ARCH_FPA, NULL},
12959 {"arm6", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12960 {"arm60", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12961 {"arm600", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12962 {"arm610", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12963 {"arm620", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12964 {"arm7", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12965 {"arm7m", ARM_ARCH_V3M, FPU_ARCH_FPA, NULL},
12966 {"arm7d", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12967 {"arm7dm", ARM_ARCH_V3M, FPU_ARCH_FPA, NULL},
12968 {"arm7di", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12969 {"arm7dmi", ARM_ARCH_V3M, FPU_ARCH_FPA, NULL},
12970 {"arm70", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12971 {"arm700", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12972 {"arm700i", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12973 {"arm710", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12974 {"arm710t", ARM_ARCH_V4T, FPU_ARCH_FPA, NULL},
12975 {"arm720", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12976 {"arm720t", ARM_ARCH_V4T, FPU_ARCH_FPA, NULL},
12977 {"arm740t", ARM_ARCH_V4T, FPU_ARCH_FPA, NULL},
12978 {"arm710c", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12979 {"arm7100", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12980 {"arm7500", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12981 {"arm7500fe", ARM_ARCH_V3, FPU_ARCH_FPA, NULL},
12982 {"arm7t", ARM_ARCH_V4T, FPU_ARCH_FPA, NULL},
12983 {"arm7tdmi", ARM_ARCH_V4T, FPU_ARCH_FPA, NULL},
12984 {"arm7tdmi-s", ARM_ARCH_V4T, FPU_ARCH_FPA, NULL},
12985 {"arm8", ARM_ARCH_V4, FPU_ARCH_FPA, NULL},
12986 {"arm810", ARM_ARCH_V4, FPU_ARCH_FPA, NULL},
12987 {"strongarm", ARM_ARCH_V4, FPU_ARCH_FPA, NULL},
12988 {"strongarm1", ARM_ARCH_V4, FPU_ARCH_FPA, NULL},
12989 {"strongarm110", ARM_ARCH_V4, FPU_ARCH_FPA, NULL},
12990 {"strongarm1100", ARM_ARCH_V4, FPU_ARCH_FPA, NULL},
12991 {"strongarm1110", ARM_ARCH_V4, FPU_ARCH_FPA, NULL},
12992 {"arm9", ARM_ARCH_V4T, FPU_ARCH_FPA, NULL},
12993 {"arm920", ARM_ARCH_V4T, FPU_ARCH_FPA, "ARM920T"},
12994 {"arm920t", ARM_ARCH_V4T, FPU_ARCH_FPA, NULL},
12995 {"arm922t", ARM_ARCH_V4T, FPU_ARCH_FPA, NULL},
12996 {"arm940t", ARM_ARCH_V4T, FPU_ARCH_FPA, NULL},
12997 {"arm9tdmi", ARM_ARCH_V4T, FPU_ARCH_FPA, NULL},
12998 /* For V5 or later processors we default to using VFP; but the user
12999 should really set the FPU type explicitly. */
13000 {"arm9e-r0", ARM_ARCH_V5TExP, FPU_ARCH_VFP_V2, NULL},
13001 {"arm9e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2, NULL},
13002 {"arm926ej", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2, "ARM926EJ-S"},
13003 {"arm926ejs", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2, "ARM926EJ-S"},
13004 {"arm926ej-s", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2, NULL},
13005 {"arm946e-r0", ARM_ARCH_V5TExP, FPU_ARCH_VFP_V2, NULL},
13006 {"arm946e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2, "ARM946E-S"},
13007 {"arm946e-s", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2, NULL},
13008 {"arm966e-r0", ARM_ARCH_V5TExP, FPU_ARCH_VFP_V2, NULL},
13009 {"arm966e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2, "ARM966E-S"},
13010 {"arm966e-s", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2, NULL},
13011 {"arm968e-s", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2, NULL},
13012 {"arm10t", ARM_ARCH_V5T, FPU_ARCH_VFP_V1, NULL},
13013 {"arm10tdmi", ARM_ARCH_V5T, FPU_ARCH_VFP_V1, NULL},
13014 {"arm10e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2, NULL},
13015 {"arm1020", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2, "ARM1020E"},
13016 {"arm1020t", ARM_ARCH_V5T, FPU_ARCH_VFP_V1, NULL},
13017 {"arm1020e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2, NULL},
13018 {"arm1022e", ARM_ARCH_V5TE, FPU_ARCH_VFP_V2, NULL},
13019 {"arm1026ejs", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2, "ARM1026EJ-S"},
13020 {"arm1026ej-s", ARM_ARCH_V5TEJ, FPU_ARCH_VFP_V2, NULL},
13021 {"arm1136js", ARM_ARCH_V6, FPU_NONE, "ARM1136J-S"},
13022 {"arm1136j-s", ARM_ARCH_V6, FPU_NONE, NULL},
13023 {"arm1136jfs", ARM_ARCH_V6, FPU_ARCH_VFP_V2, "ARM1136JF-S"},
13024 {"arm1136jf-s", ARM_ARCH_V6, FPU_ARCH_VFP_V2, NULL},
13025 {"mpcore", ARM_ARCH_V6K, FPU_ARCH_VFP_V2, NULL},
13026 {"mpcorenovfp", ARM_ARCH_V6K, FPU_NONE, NULL},
13027 {"arm1156t2-s", ARM_ARCH_V6T2, FPU_NONE, NULL},
13028 {"arm1156t2f-s", ARM_ARCH_V6T2, FPU_ARCH_VFP_V2, NULL},
13029 {"arm1176jz-s", ARM_ARCH_V6ZK, FPU_NONE, NULL},
13030 {"arm1176jzf-s", ARM_ARCH_V6ZK, FPU_ARCH_VFP_V2, NULL},
13031 /* ??? XSCALE is really an architecture. */
13032 {"xscale", ARM_ARCH_XSCALE, FPU_ARCH_VFP_V2, NULL},
13033 /* ??? iwmmxt is not a processor. */
13034 {"iwmmxt", ARM_ARCH_IWMMXT, FPU_ARCH_VFP_V2, NULL},
13035 {"i80200", ARM_ARCH_XSCALE, FPU_ARCH_VFP_V2, NULL},
13037 {"ep9312", ARM_FEATURE(ARM_AEXT_V4T, ARM_CEXT_MAVERICK), FPU_ARCH_MAVERICK, "ARM920T"},
13038 {NULL, ARM_ARCH_NONE, ARM_ARCH_NONE, NULL}
13041 struct arm_arch_option_table
13044 const arm_feature_set value;
13045 const arm_feature_set default_fpu;
13048 /* This list should, at a minimum, contain all the architecture names
13049 recognized by GCC. */
13050 static const struct arm_arch_option_table arm_archs[] =
13052 {"all", ARM_ANY, FPU_ARCH_FPA},
13053 {"armv1", ARM_ARCH_V1, FPU_ARCH_FPA},
13054 {"armv2", ARM_ARCH_V2, FPU_ARCH_FPA},
13055 {"armv2a", ARM_ARCH_V2S, FPU_ARCH_FPA},
13056 {"armv2s", ARM_ARCH_V2S, FPU_ARCH_FPA},
13057 {"armv3", ARM_ARCH_V3, FPU_ARCH_FPA},
13058 {"armv3m", ARM_ARCH_V3M, FPU_ARCH_FPA},
13059 {"armv4", ARM_ARCH_V4, FPU_ARCH_FPA},
13060 {"armv4xm", ARM_ARCH_V4xM, FPU_ARCH_FPA},
13061 {"armv4t", ARM_ARCH_V4T, FPU_ARCH_FPA},
13062 {"armv4txm", ARM_ARCH_V4TxM, FPU_ARCH_FPA},
13063 {"armv5", ARM_ARCH_V5, FPU_ARCH_VFP},
13064 {"armv5t", ARM_ARCH_V5T, FPU_ARCH_VFP},
13065 {"armv5txm", ARM_ARCH_V5TxM, FPU_ARCH_VFP},
13066 {"armv5te", ARM_ARCH_V5TE, FPU_ARCH_VFP},
13067 {"armv5texp", ARM_ARCH_V5TExP, FPU_ARCH_VFP},
13068 {"armv5tej", ARM_ARCH_V5TEJ, FPU_ARCH_VFP},
13069 {"armv6", ARM_ARCH_V6, FPU_ARCH_VFP},
13070 {"armv6j", ARM_ARCH_V6, FPU_ARCH_VFP},
13071 {"armv6k", ARM_ARCH_V6K, FPU_ARCH_VFP},
13072 {"armv6z", ARM_ARCH_V6Z, FPU_ARCH_VFP},
13073 {"armv6zk", ARM_ARCH_V6ZK, FPU_ARCH_VFP},
13074 {"armv6t2", ARM_ARCH_V6T2, FPU_ARCH_VFP},
13075 {"armv6kt2", ARM_ARCH_V6KT2, FPU_ARCH_VFP},
13076 {"armv6zt2", ARM_ARCH_V6ZT2, FPU_ARCH_VFP},
13077 {"armv6zkt2", ARM_ARCH_V6ZKT2, FPU_ARCH_VFP},
13078 {"xscale", ARM_ARCH_XSCALE, FPU_ARCH_VFP},
13079 {"iwmmxt", ARM_ARCH_IWMMXT, FPU_ARCH_VFP},
13080 {NULL, ARM_ARCH_NONE, ARM_ARCH_NONE}
13083 /* ISA extensions in the co-processor space. */
13084 struct arm_option_cpu_value_table
13087 const arm_feature_set value;
13090 static const struct arm_option_cpu_value_table arm_extensions[] =
13092 {"maverick", ARM_FEATURE (0, ARM_CEXT_MAVERICK)},
13093 {"xscale", ARM_FEATURE (0, ARM_CEXT_XSCALE)},
13094 {"iwmmxt", ARM_FEATURE (0, ARM_CEXT_IWMMXT)},
13095 {NULL, ARM_ARCH_NONE}
13098 /* This list should, at a minimum, contain all the fpu names
13099 recognized by GCC. */
13100 static const struct arm_option_cpu_value_table arm_fpus[] =
13102 {"softfpa", FPU_NONE},
13103 {"fpe", FPU_ARCH_FPE},
13104 {"fpe2", FPU_ARCH_FPE},
13105 {"fpe3", FPU_ARCH_FPA}, /* Third release supports LFM/SFM. */
13106 {"fpa", FPU_ARCH_FPA},
13107 {"fpa10", FPU_ARCH_FPA},
13108 {"fpa11", FPU_ARCH_FPA},
13109 {"arm7500fe", FPU_ARCH_FPA},
13110 {"softvfp", FPU_ARCH_VFP},
13111 {"softvfp+vfp", FPU_ARCH_VFP_V2},
13112 {"vfp", FPU_ARCH_VFP_V2},
13113 {"vfp9", FPU_ARCH_VFP_V2},
13114 {"vfp10", FPU_ARCH_VFP_V2},
13115 {"vfp10-r0", FPU_ARCH_VFP_V1},
13116 {"vfpxd", FPU_ARCH_VFP_V1xD},
13117 {"arm1020t", FPU_ARCH_VFP_V1},
13118 {"arm1020e", FPU_ARCH_VFP_V2},
13119 {"arm1136jfs", FPU_ARCH_VFP_V2},
13120 {"arm1136jf-s", FPU_ARCH_VFP_V2},
13121 {"maverick", FPU_ARCH_MAVERICK},
13122 {NULL, ARM_ARCH_NONE}
13125 struct arm_option_value_table
13131 static const struct arm_option_value_table arm_float_abis[] =
13133 {"hard", ARM_FLOAT_ABI_HARD},
13134 {"softfp", ARM_FLOAT_ABI_SOFTFP},
13135 {"soft", ARM_FLOAT_ABI_SOFT},
13140 /* We only know how to output GNU and ver 4 (AAELF) formats. */
13141 static const struct arm_option_value_table arm_eabis[] =
13143 {"gnu", EF_ARM_EABI_UNKNOWN},
13144 {"4", EF_ARM_EABI_VER4},
13149 struct arm_long_option_table
13151 char * option; /* Substring to match. */
13152 char * help; /* Help information. */
13153 int (* func) (char * subopt); /* Function to decode sub-option. */
13154 char * deprecated; /* If non-null, print this message. */
13158 arm_parse_extension (char * str, const arm_feature_set **opt_p)
13160 arm_feature_set *ext_set = xmalloc (sizeof (arm_feature_set));
13162 /* Copy the feature set, so that we can modify it. */
13163 *ext_set = **opt_p;
13166 while (str != NULL && *str != 0)
13168 const struct arm_option_cpu_value_table * opt;
13174 as_bad (_("invalid architectural extension"));
13179 ext = strchr (str, '+');
13182 optlen = ext - str;
13184 optlen = strlen (str);
13188 as_bad (_("missing architectural extension"));
13192 for (opt = arm_extensions; opt->name != NULL; opt++)
13193 if (strncmp (opt->name, str, optlen) == 0)
13195 ARM_MERGE_FEATURE_SETS (*ext_set, *ext_set, opt->value);
13199 if (opt->name == NULL)
13201 as_bad (_("unknown architectural extnsion `%s'"), str);
13212 arm_parse_cpu (char * str)
13214 const struct arm_cpu_option_table * opt;
13215 char * ext = strchr (str, '+');
13219 optlen = ext - str;
13221 optlen = strlen (str);
13225 as_bad (_("missing cpu name `%s'"), str);
13229 for (opt = arm_cpus; opt->name != NULL; opt++)
13230 if (strncmp (opt->name, str, optlen) == 0)
13232 mcpu_cpu_opt = &opt->value;
13233 mcpu_fpu_opt = &opt->default_fpu;
13234 if (opt->canonical_name)
13235 strcpy(selected_cpu_name, opt->canonical_name);
13239 for (i = 0; i < optlen; i++)
13240 selected_cpu_name[i] = TOUPPER (opt->name[i]);
13241 selected_cpu_name[i] = 0;
13245 return arm_parse_extension (ext, &mcpu_cpu_opt);
13250 as_bad (_("unknown cpu `%s'"), str);
13255 arm_parse_arch (char * str)
13257 const struct arm_arch_option_table *opt;
13258 char *ext = strchr (str, '+');
13262 optlen = ext - str;
13264 optlen = strlen (str);
13268 as_bad (_("missing architecture name `%s'"), str);
13272 for (opt = arm_archs; opt->name != NULL; opt++)
13273 if (streq (opt->name, str))
13275 march_cpu_opt = &opt->value;
13276 march_fpu_opt = &opt->default_fpu;
13277 strcpy(selected_cpu_name, opt->name);
13280 return arm_parse_extension (ext, &march_cpu_opt);
13285 as_bad (_("unknown architecture `%s'\n"), str);
13290 arm_parse_fpu (char * str)
13292 const struct arm_option_cpu_value_table * opt;
13294 for (opt = arm_fpus; opt->name != NULL; opt++)
13295 if (streq (opt->name, str))
13297 mfpu_opt = &opt->value;
13301 as_bad (_("unknown floating point format `%s'\n"), str);
13306 arm_parse_float_abi (char * str)
13308 const struct arm_option_value_table * opt;
13310 for (opt = arm_float_abis; opt->name != NULL; opt++)
13311 if (streq (opt->name, str))
13313 mfloat_abi_opt = opt->value;
13317 as_bad (_("unknown floating point abi `%s'\n"), str);
13323 arm_parse_eabi (char * str)
13325 const struct arm_option_value_table *opt;
13327 for (opt = arm_eabis; opt->name != NULL; opt++)
13328 if (streq (opt->name, str))
13330 meabi_flags = opt->value;
13333 as_bad (_("unknown EABI `%s'\n"), str);
13338 struct arm_long_option_table arm_long_opts[] =
13340 {"mcpu=", N_("<cpu name>\t assemble for CPU <cpu name>"),
13341 arm_parse_cpu, NULL},
13342 {"march=", N_("<arch name>\t assemble for architecture <arch name>"),
13343 arm_parse_arch, NULL},
13344 {"mfpu=", N_("<fpu name>\t assemble for FPU architecture <fpu name>"),
13345 arm_parse_fpu, NULL},
13346 {"mfloat-abi=", N_("<abi>\t assemble for floating point ABI <abi>"),
13347 arm_parse_float_abi, NULL},
13349 {"meabi=", N_("<ver>\t assemble for eabi version <ver>"),
13350 arm_parse_eabi, NULL},
13352 {NULL, NULL, 0, NULL}
13356 md_parse_option (int c, char * arg)
13358 struct arm_option_table *opt;
13359 const struct arm_legacy_option_table *fopt;
13360 struct arm_long_option_table *lopt;
13366 target_big_endian = 1;
13372 target_big_endian = 0;
13377 /* Listing option. Just ignore these, we don't support additional
13382 for (opt = arm_opts; opt->option != NULL; opt++)
13384 if (c == opt->option[0]
13385 && ((arg == NULL && opt->option[1] == 0)
13386 || streq (arg, opt->option + 1)))
13388 #if WARN_DEPRECATED
13389 /* If the option is deprecated, tell the user. */
13390 if (opt->deprecated != NULL)
13391 as_tsktsk (_("option `-%c%s' is deprecated: %s"), c,
13392 arg ? arg : "", _(opt->deprecated));
13395 if (opt->var != NULL)
13396 *opt->var = opt->value;
13402 for (fopt = arm_legacy_opts; fopt->option != NULL; fopt++)
13404 if (c == fopt->option[0]
13405 && ((arg == NULL && fopt->option[1] == 0)
13406 || streq (arg, fopt->option + 1)))
13408 #if WARN_DEPRECATED
13409 /* If the option is deprecated, tell the user. */
13410 if (fopt->deprecated != NULL)
13411 as_tsktsk (_("option `-%c%s' is deprecated: %s"), c,
13412 arg ? arg : "", _(fopt->deprecated));
13415 if (fopt->var != NULL)
13416 *fopt->var = &fopt->value;
13422 for (lopt = arm_long_opts; lopt->option != NULL; lopt++)
13424 /* These options are expected to have an argument. */
13425 if (c == lopt->option[0]
13427 && strncmp (arg, lopt->option + 1,
13428 strlen (lopt->option + 1)) == 0)
13430 #if WARN_DEPRECATED
13431 /* If the option is deprecated, tell the user. */
13432 if (lopt->deprecated != NULL)
13433 as_tsktsk (_("option `-%c%s' is deprecated: %s"), c, arg,
13434 _(lopt->deprecated));
13437 /* Call the sup-option parser. */
13438 return lopt->func (arg + strlen (lopt->option) - 1);
13449 md_show_usage (FILE * fp)
13451 struct arm_option_table *opt;
13452 struct arm_long_option_table *lopt;
13454 fprintf (fp, _(" ARM-specific assembler options:\n"));
13456 for (opt = arm_opts; opt->option != NULL; opt++)
13457 if (opt->help != NULL)
13458 fprintf (fp, " -%-23s%s\n", opt->option, _(opt->help));
13460 for (lopt = arm_long_opts; lopt->option != NULL; lopt++)
13461 if (lopt->help != NULL)
13462 fprintf (fp, " -%s%s\n", lopt->option, _(lopt->help));
13466 -EB assemble code for a big-endian cpu\n"));
13471 -EL assemble code for a little-endian cpu\n"));
13477 /* Set the public EABI object attributes. */
13479 aeabi_set_public_attributes (void)
13482 arm_feature_set flags;
13484 /* Choose the architecture based on the capabilities of the requested cpu
13485 (if any) and/or the instructions actually used. */
13486 ARM_MERGE_FEATURE_SETS (flags, arm_arch_used, thumb_arch_used);
13487 ARM_MERGE_FEATURE_SETS (flags, flags, *mfpu_opt);
13488 ARM_MERGE_FEATURE_SETS (flags, flags, selected_cpu);
13489 if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v6t2))
13491 else if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v6z))
13493 else if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v6k))
13495 else if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v6))
13497 else if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v5e))
13499 else if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v5)
13500 || ARM_CPU_HAS_FEATURE (flags, arm_ext_v5t))
13502 else if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v4t))
13504 else if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v4))
13509 /* Tag_CPU_name. */
13510 if (selected_cpu_name[0])
13514 p = selected_cpu_name;
13515 if (strncmp(p, "armv", 4) == 0)
13520 for (i = 0; p[i]; i++)
13521 p[i] = TOUPPER (p[i]);
13523 elf32_arm_add_eabi_attr_string (stdoutput, 5, p);
13525 /* Tag_CPU_arch. */
13526 elf32_arm_add_eabi_attr_int (stdoutput, 6, arch);
13527 /* Tag_ARM_ISA_use. */
13528 if (ARM_CPU_HAS_FEATURE (arm_arch_used, arm_arch_full))
13529 elf32_arm_add_eabi_attr_int (stdoutput, 8, 1);
13530 /* Tag_THUMB_ISA_use. */
13531 if (ARM_CPU_HAS_FEATURE (thumb_arch_used, arm_arch_full))
13532 elf32_arm_add_eabi_attr_int (stdoutput, 9,
13533 ARM_CPU_HAS_FEATURE (thumb_arch_used, arm_arch_t2) ? 2 : 1);
13534 /* Tag_VFP_arch. */
13535 if (ARM_CPU_HAS_FEATURE (thumb_arch_used, fpu_arch_vfp_v2)
13536 || ARM_CPU_HAS_FEATURE (arm_arch_used, fpu_arch_vfp_v2))
13537 elf32_arm_add_eabi_attr_int (stdoutput, 10, 2);
13538 else if (ARM_CPU_HAS_FEATURE (thumb_arch_used, fpu_arch_vfp_v1)
13539 || ARM_CPU_HAS_FEATURE (arm_arch_used, fpu_arch_vfp_v1))
13540 elf32_arm_add_eabi_attr_int (stdoutput, 10, 1);
13541 /* Tag_WMMX_arch. */
13542 if (ARM_CPU_HAS_FEATURE (thumb_arch_used, arm_cext_iwmmxt)
13543 || ARM_CPU_HAS_FEATURE (arm_arch_used, arm_cext_iwmmxt))
13544 elf32_arm_add_eabi_attr_int (stdoutput, 11, 1);
13547 /* Add the .ARM.attributes section. */
13556 if (EF_ARM_EABI_VERSION (meabi_flags) < EF_ARM_EABI_VER4)
13559 aeabi_set_public_attributes ();
13560 size = elf32_arm_eabi_attr_size (stdoutput);
13561 s = subseg_new (".ARM.attributes", 0);
13562 bfd_set_section_flags (stdoutput, s, SEC_READONLY | SEC_DATA);
13563 addr = frag_now_fix ();
13564 p = frag_more (size);
13565 elf32_arm_set_eabi_attr_contents (stdoutput, (bfd_byte *)p, size);
13569 /* Parse a .cpu directive. */
13572 s_arm_cpu (int ignored ATTRIBUTE_UNUSED)
13574 const struct arm_cpu_option_table *opt;
13578 name = input_line_pointer;
13579 while (*input_line_pointer && !ISSPACE(*input_line_pointer))
13580 input_line_pointer++;
13581 saved_char = *input_line_pointer;
13582 *input_line_pointer = 0;
13584 /* Skip the first "all" entry. */
13585 for (opt = arm_cpus + 1; opt->name != NULL; opt++)
13586 if (streq (opt->name, name))
13588 mcpu_cpu_opt = &opt->value;
13589 selected_cpu = opt->value;
13590 if (opt->canonical_name)
13591 strcpy(selected_cpu_name, opt->canonical_name);
13595 for (i = 0; opt->name[i]; i++)
13596 selected_cpu_name[i] = TOUPPER (opt->name[i]);
13597 selected_cpu_name[i] = 0;
13599 ARM_MERGE_FEATURE_SETS (cpu_variant, *mcpu_cpu_opt, *mfpu_opt);
13600 *input_line_pointer = saved_char;
13601 demand_empty_rest_of_line ();
13604 as_bad (_("unknown cpu `%s'"), name);
13605 *input_line_pointer = saved_char;
13606 ignore_rest_of_line ();
13610 /* Parse a .arch directive. */
13613 s_arm_arch (int ignored ATTRIBUTE_UNUSED)
13615 const struct arm_arch_option_table *opt;
13619 name = input_line_pointer;
13620 while (*input_line_pointer && !ISSPACE(*input_line_pointer))
13621 input_line_pointer++;
13622 saved_char = *input_line_pointer;
13623 *input_line_pointer = 0;
13625 /* Skip the first "all" entry. */
13626 for (opt = arm_archs + 1; opt->name != NULL; opt++)
13627 if (streq (opt->name, name))
13629 mcpu_cpu_opt = &opt->value;
13630 selected_cpu = opt->value;
13631 strcpy(selected_cpu_name, opt->name);
13632 ARM_MERGE_FEATURE_SETS (cpu_variant, *mcpu_cpu_opt, *mfpu_opt);
13633 *input_line_pointer = saved_char;
13634 demand_empty_rest_of_line ();
13638 as_bad (_("unknown architecture `%s'\n"), name);
13639 *input_line_pointer = saved_char;
13640 ignore_rest_of_line ();
13644 /* Parse a .fpu directive. */
13647 s_arm_fpu (int ignored ATTRIBUTE_UNUSED)
13649 const struct arm_option_cpu_value_table *opt;
13653 name = input_line_pointer;
13654 while (*input_line_pointer && !ISSPACE(*input_line_pointer))
13655 input_line_pointer++;
13656 saved_char = *input_line_pointer;
13657 *input_line_pointer = 0;
13659 for (opt = arm_fpus; opt->name != NULL; opt++)
13660 if (streq (opt->name, name))
13662 mfpu_opt = &opt->value;
13663 ARM_MERGE_FEATURE_SETS (cpu_variant, *mcpu_cpu_opt, *mfpu_opt);
13664 *input_line_pointer = saved_char;
13665 demand_empty_rest_of_line ();
13669 as_bad (_("unknown floating point format `%s'\n"), name);
13670 *input_line_pointer = saved_char;
13671 ignore_rest_of_line ();
13673 #endif /* OBJ_ELF */