1 /* tc-v850.c -- Assembler code for the NEC V850
2 Copyright (C) 1996, 1997 Free Software Foundation.
4 This file is part of GAS, the GNU Assembler.
6 GAS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GAS is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GAS; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
25 #include "opcode/v850.h"
31 /* sign-extend a 16-bit number */
32 #define SEXT16(x) ((((x) & 0xffff) ^ (~ 0x7fff)) + 0x8000)
34 /* Temporarily holds the reloc in a cons expression. */
35 static bfd_reloc_code_real_type hold_cons_reloc;
37 /* Set to TRUE if we want to be pedantic about signed overflows. */
38 static boolean warn_signed_overflows = FALSE;
39 static boolean warn_unsigned_overflows = FALSE;
41 /* Indicates the target BFD machine number. */
42 static int machine = -1;
44 /* Indicates the target processor(s) for the assemble. */
45 static unsigned int processor_mask = -1;
48 /* Structure to hold information about predefined registers. */
55 /* Generic assembler global variables which must be defined by all targets. */
57 /* Characters which always start a comment. */
58 const char comment_chars[] = "#";
60 /* Characters which start a comment at the beginning of a line. */
61 const char line_comment_chars[] = ";#";
63 /* Characters which may be used to separate multiple commands on a
65 const char line_separator_chars[] = ";";
67 /* Characters which are used to indicate an exponent in a floating
69 const char EXP_CHARS[] = "eE";
71 /* Characters which mean that a number is a floating point constant,
73 const char FLT_CHARS[] = "dD";
76 const relax_typeS md_relax_table[] =
78 /* Conditional branches. */
80 {0x1fffff, -0x200000, 6, 0},
81 /* Unconditional branches. */
83 {0x1fffff, -0x200000, 4, 0},
87 static segT sdata_section = NULL;
88 static segT tdata_section = NULL;
89 static segT zdata_section = NULL;
90 static segT sbss_section = NULL;
91 static segT tbss_section = NULL;
92 static segT zbss_section = NULL;
93 static segT rosdata_section = NULL;
94 static segT rozdata_section = NULL;
95 static segT scommon_section = NULL;
96 static segT tcommon_section = NULL;
97 static segT zcommon_section = NULL;
98 /* start-sanitize-v850e */
99 static segT call_table_data_section = NULL;
100 static segT call_table_text_section = NULL;
101 /* end-sanitize-v850e */
104 #define MAX_INSN_FIXUPS (5)
109 bfd_reloc_code_real_type reloc;
112 struct v850_fixup fixups [MAX_INSN_FIXUPS];
117 v850_sdata (int ignore)
119 obj_elf_section_change_hook();
121 subseg_set (sdata_section, (subsegT) get_absolute_expression ());
123 demand_empty_rest_of_line ();
127 v850_tdata (int ignore)
129 obj_elf_section_change_hook();
131 subseg_set (tdata_section, (subsegT) get_absolute_expression ());
133 demand_empty_rest_of_line ();
137 v850_zdata (int ignore)
139 obj_elf_section_change_hook();
141 subseg_set (zdata_section, (subsegT) get_absolute_expression ());
143 demand_empty_rest_of_line ();
147 v850_sbss (int ignore)
149 obj_elf_section_change_hook();
151 subseg_set (sbss_section, (subsegT) get_absolute_expression ());
153 demand_empty_rest_of_line ();
157 v850_tbss (int ignore)
159 obj_elf_section_change_hook();
161 subseg_set (tbss_section, (subsegT) get_absolute_expression ());
163 demand_empty_rest_of_line ();
167 v850_zbss (int ignore)
169 obj_elf_section_change_hook();
171 subseg_set (zbss_section, (subsegT) get_absolute_expression ());
173 demand_empty_rest_of_line ();
177 v850_rosdata (int ignore)
179 obj_elf_section_change_hook();
181 subseg_set (rosdata_section, (subsegT) get_absolute_expression ());
183 demand_empty_rest_of_line ();
187 v850_rozdata (int ignore)
189 obj_elf_section_change_hook();
191 subseg_set (rozdata_section, (subsegT) get_absolute_expression ());
193 demand_empty_rest_of_line ();
196 /* start-sanitize-v850e */
198 v850_call_table_data (int ignore)
200 obj_elf_section_change_hook();
202 subseg_set (call_table_data_section, (subsegT) get_absolute_expression ());
204 demand_empty_rest_of_line ();
208 v850_call_table_text (int ignore)
210 obj_elf_section_change_hook();
212 subseg_set (call_table_text_section, (subsegT) get_absolute_expression ());
214 demand_empty_rest_of_line ();
216 /* end-sanitize-v850e */
219 v850_bss (int ignore)
221 register int temp = get_absolute_expression ();
223 obj_elf_section_change_hook();
225 subseg_set (bss_section, (subsegT) temp);
227 demand_empty_rest_of_line ();
231 v850_offset (int ignore)
233 int temp = get_absolute_expression ();
235 temp -= frag_now_fix();
238 (void) frag_more (temp);
240 demand_empty_rest_of_line ();
243 /* Copied from obj_elf_common() in gas/config/obj-elf.c */
256 name = input_line_pointer;
257 c = get_symbol_end ();
258 /* just after name is now '\0' */
259 p = input_line_pointer;
262 if (*input_line_pointer != ',')
264 as_bad ("Expected comma after symbol-name");
265 ignore_rest_of_line ();
268 input_line_pointer++; /* skip ',' */
269 if ((temp = get_absolute_expression ()) < 0)
271 as_bad (".COMMon length (%d.) <0! Ignored.", temp);
272 ignore_rest_of_line ();
277 symbolP = symbol_find_or_make (name);
279 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
281 as_bad ("Ignoring attempt to re-define symbol");
282 ignore_rest_of_line ();
285 if (S_GET_VALUE (symbolP) != 0)
287 if (S_GET_VALUE (symbolP) != size)
289 as_warn ("Length of .comm \"%s\" is already %ld. Not changed to %d.",
290 S_GET_NAME (symbolP), (long) S_GET_VALUE (symbolP), size);
293 know (symbolP->sy_frag == &zero_address_frag);
294 if (*input_line_pointer != ',')
299 input_line_pointer++;
302 if (! have_align || *input_line_pointer != '"')
308 temp = get_absolute_expression ();
312 as_warn ("Common alignment negative; 0 assumed");
324 old_subsec = now_subseg;
327 /* convert to a power of 2 alignment */
328 for (align = 0; (temp & 1) == 0; temp >>= 1, ++align);
331 as_bad ("Common alignment not a power of 2");
332 ignore_rest_of_line ();
341 record_alignment (sbss_section, align);
342 obj_elf_section_change_hook();
343 subseg_set (sbss_section, 0);
347 record_alignment (zbss_section, align);
348 obj_elf_section_change_hook();
349 subseg_set (zbss_section, 0);
353 record_alignment (tbss_section, align);
354 obj_elf_section_change_hook();
355 subseg_set (tbss_section, 0);
363 frag_align (align, 0, 0);
368 if (S_GET_SEGMENT (symbolP) == sbss_section)
369 symbolP->sy_frag->fr_symbol = 0;
373 if (S_GET_SEGMENT (symbolP) == zbss_section)
374 symbolP->sy_frag->fr_symbol = 0;
378 if (S_GET_SEGMENT (symbolP) == tbss_section)
379 symbolP->sy_frag->fr_symbol = 0;
386 symbolP->sy_frag = frag_now;
387 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP,
388 (offsetT) size, (char *) 0);
390 S_SET_SIZE (symbolP, size);
394 case AREA_SDA: S_SET_SEGMENT (symbolP, sbss_section); break;
395 case AREA_ZDA: S_SET_SEGMENT (symbolP, zbss_section); break;
396 case AREA_TDA: S_SET_SEGMENT (symbolP, tbss_section); break;
401 S_CLEAR_EXTERNAL (symbolP);
402 obj_elf_section_change_hook();
403 subseg_set (old_sec, old_subsec);
408 S_SET_VALUE (symbolP, (valueT) size);
409 S_SET_ALIGN (symbolP, temp);
410 S_SET_EXTERNAL (symbolP);
414 case AREA_SDA: S_SET_SEGMENT (symbolP, scommon_section); break;
415 case AREA_ZDA: S_SET_SEGMENT (symbolP, zcommon_section); break;
416 case AREA_TDA: S_SET_SEGMENT (symbolP, tcommon_section); break;
424 input_line_pointer++;
425 /* @@ Some use the dot, some don't. Can we get some consistency?? */
426 if (*input_line_pointer == '.')
427 input_line_pointer++;
428 /* @@ Some say data, some say bss. */
429 if (strncmp (input_line_pointer, "bss\"", 4)
430 && strncmp (input_line_pointer, "data\"", 5))
432 while (*--input_line_pointer != '"')
434 input_line_pointer--;
435 goto bad_common_segment;
437 while (*input_line_pointer++ != '"')
439 goto allocate_common;
442 symbolP->bsym->flags |= BSF_OBJECT;
444 demand_empty_rest_of_line ();
449 p = input_line_pointer;
450 while (*p && *p != '\n')
454 as_bad ("bad .common segment %s", input_line_pointer + 1);
456 input_line_pointer = p;
457 ignore_rest_of_line ();
463 set_machine (int number)
466 bfd_set_arch_mach (stdoutput, TARGET_ARCH, machine);
470 case 0: processor_mask = PROCESSOR_V850; break;
471 /* start-sanitize-v850e */
472 case bfd_mach_v850e: processor_mask = PROCESSOR_V850E; break;
473 case bfd_mach_v850ea: processor_mask = PROCESSOR_V850EA; break;
474 /* end-sanitize-v850e */
478 /* The target specific pseudo-ops which we support. */
479 const pseudo_typeS md_pseudo_table[] =
481 {"sdata", v850_sdata, 0},
482 {"tdata", v850_tdata, 0},
483 {"zdata", v850_zdata, 0},
484 {"sbss", v850_sbss, 0},
485 {"tbss", v850_tbss, 0},
486 {"zbss", v850_zbss, 0},
487 {"rosdata", v850_rosdata, 0},
488 {"rozdata", v850_rozdata, 0},
489 {"bss", v850_bss, 0},
490 {"offset", v850_offset, 0},
492 {"zcomm", v850_comm, AREA_ZDA},
493 {"scomm", v850_comm, AREA_SDA},
494 {"tcomm", v850_comm, AREA_TDA},
495 {"v850", set_machine, 0},
496 /* start-sanitize-v850e */
497 {"call_table_data", v850_call_table_data, 0},
498 {"call_table_text", v850_call_table_text, 0},
499 {"v850e", set_machine, bfd_mach_v850e},
500 {"v850ea", set_machine, bfd_mach_v850ea},
501 /* end-sanitize-v850e */
505 /* Opcode hash table. */
506 static struct hash_control *v850_hash;
508 /* This table is sorted. Suitable for searching by a binary search. */
509 static const struct reg_name pre_defined_registers[] =
511 { "ep", 30 }, /* ep - element ptr */
512 { "gp", 4 }, /* gp - global ptr */
513 { "hp", 2 }, /* hp - handler stack ptr */
514 { "lp", 31 }, /* lp - link ptr */
547 { "sp", 3 }, /* sp - stack ptr */
548 { "tp", 5 }, /* tp - text ptr */
551 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct reg_name))
554 static const struct reg_name system_registers[] =
556 /* start-sanitize-v850e */
562 /* end-sanitize-v850e */
570 #define SYSREG_NAME_CNT (sizeof (system_registers) / sizeof (struct reg_name))
572 /* start-sanitize-v850e */
573 static const struct reg_name system_list_registers[] =
578 #define SYSREGLIST_NAME_CNT (sizeof (system_list_registers) / sizeof (struct reg_name))
579 /* end-sanitize-v850e */
581 static const struct reg_name cc_names[] =
606 #define CC_NAME_CNT (sizeof (cc_names) / sizeof (struct reg_name))
608 /* reg_name_search does a binary search of the given register table
609 to see if "name" is a valid regiter name. Returns the register
610 number from the array on success, or -1 on failure. */
613 reg_name_search (regs, regcount, name, accept_numbers)
614 const struct reg_name * regs;
617 boolean accept_numbers;
619 int middle, low, high;
623 /* If the register name is a symbol, then evaluate it. */
624 if ((symbolP = symbol_find (name)) != NULL)
626 /* If the symbol is an alias for another name then use that.
627 If the symbol is an alias for a number, then return the number. */
628 if (symbolP->sy_value.X_op == O_symbol)
630 name = S_GET_NAME (symbolP->sy_value.X_add_symbol);
632 else if (accept_numbers)
634 int reg = S_GET_VALUE (symbolP);
636 if (reg >= 0 && reg <= 31)
646 middle = (low + high) / 2;
647 cmp = strcasecmp (name, regs[middle].name);
653 return regs[middle].value;
660 /* Summary of register_name().
662 * in: Input_line_pointer points to 1st char of operand.
664 * out: A expressionS.
665 * The operand may have been a register: in this case, X_op == O_register,
666 * X_add_number is set to the register number, and truth is returned.
667 * Input_line_pointer->(next non-blank) char after operand, or is in
668 * its original state.
671 register_name (expressionP)
672 expressionS * expressionP;
679 /* Find the spelling of the operand */
680 start = name = input_line_pointer;
682 c = get_symbol_end ();
684 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name, FALSE);
686 * input_line_pointer = c; /* put back the delimiting char */
688 /* look to see if it's in the register table */
691 expressionP->X_op = O_register;
692 expressionP->X_add_number = reg_number;
694 /* make the rest nice */
695 expressionP->X_add_symbol = NULL;
696 expressionP->X_op_symbol = NULL;
702 /* reset the line as if we had not done anything */
703 input_line_pointer = start;
709 /* Summary of system_register_name().
711 * in: Input_line_pointer points to 1st char of operand.
712 * expressionP points to an expression structure to be filled in.
713 * accept_numbers is true iff numerical register names may be used.
714 * start-sanitize-v850e
715 * accept_list_names is true iff the special names PS and SR may be
719 * out: A expressionS structure in expressionP.
720 * The operand may have been a register: in this case, X_op == O_register,
721 * X_add_number is set to the register number, and truth is returned.
722 * Input_line_pointer->(next non-blank) char after operand, or is in
723 * its original state.
726 system_register_name (expressionP, accept_numbers
727 /* start-sanitize-v850e */
729 /* end-sanitize-v850e */
731 expressionS * expressionP;
732 boolean accept_numbers;
733 /* start-sanitize-v850e */
734 boolean accept_list_names;
735 /* end-sanitize-v850e */
742 /* Find the spelling of the operand */
743 start = name = input_line_pointer;
745 c = get_symbol_end ();
746 reg_number = reg_name_search (system_registers, SYSREG_NAME_CNT, name, accept_numbers);
748 * input_line_pointer = c; /* put back the delimiting char */
753 input_line_pointer = start; /* reset input_line pointer */
755 if (isdigit (* input_line_pointer))
757 reg_number = strtol (input_line_pointer, & input_line_pointer, 10);
759 /* Make sure that the register number is allowable. */
762 /* start-sanitize-v850e */
765 /* end-sanitize-v850e */
771 /* start-sanitize-v850e */
772 else if (accept_list_names)
774 c = get_symbol_end ();
775 reg_number = reg_name_search (system_list_registers, SYSREGLIST_NAME_CNT, name, FALSE);
777 * input_line_pointer = c; /* put back the delimiting char */
779 /* end-sanitize-v850e */
782 /* look to see if it's in the register table */
785 expressionP->X_op = O_register;
786 expressionP->X_add_number = reg_number;
788 /* make the rest nice */
789 expressionP->X_add_symbol = NULL;
790 expressionP->X_op_symbol = NULL;
796 /* reset the line as if we had not done anything */
797 input_line_pointer = start;
803 /* Summary of cc_name().
805 * in: Input_line_pointer points to 1st char of operand.
807 * out: A expressionS.
808 * The operand may have been a register: in this case, X_op == O_register,
809 * X_add_number is set to the register number, and truth is returned.
810 * Input_line_pointer->(next non-blank) char after operand, or is in
811 * its original state.
814 cc_name (expressionP)
815 expressionS * expressionP;
822 /* Find the spelling of the operand */
823 start = name = input_line_pointer;
825 c = get_symbol_end ();
826 reg_number = reg_name_search (cc_names, CC_NAME_CNT, name, FALSE);
828 * input_line_pointer = c; /* put back the delimiting char */
830 /* look to see if it's in the register table */
833 expressionP->X_op = O_constant;
834 expressionP->X_add_number = reg_number;
836 /* make the rest nice */
837 expressionP->X_add_symbol = NULL;
838 expressionP->X_op_symbol = NULL;
844 /* reset the line as if we had not done anything */
845 input_line_pointer = start;
852 skip_white_space (void)
854 while ( * input_line_pointer == ' '
855 || * input_line_pointer == '\t')
856 ++ input_line_pointer;
859 /* start-sanitize-v850e */
860 /* Summary of parse_register_list ().
862 * in: Input_line_pointer points to 1st char of a list of registers.
863 * insn is the partially constructed instruction.
864 * operand is the operand being inserted.
866 * out: NULL if the parse completed successfully, otherwise a
867 * pointer to an error message is returned. If the parse
868 * completes the correct bit fields in the instruction
871 * Parses register lists with the syntax:
879 * and also parses constant epxressions whoes bits indicate the
880 * registers in the lists. The LSB in the expression refers to
881 * the lowest numbered permissable register in the register list,
882 * and so on upwards. System registers are considered to be very
889 unsigned long * insn,
890 const struct v850_operand * operand
893 static int type1_regs[ 32 ] = { 30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 };
894 static int type2_regs[ 32 ] = { 19, 18, 17, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 30, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 };
895 static int type3_regs[ 32 ] = { 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 15, 13, 12, 7, 6, 5, 4, 11, 10, 9, 8 };
900 /* Select a register array to parse. */
901 switch (operand->shift)
903 case 0xffe00001: regs = type1_regs; break;
904 case 0xfff8000f: regs = type2_regs; break;
905 case 0xfff8001f: regs = type3_regs; break;
907 as_bad ("unknown operand shift: %x\n", operand->shift );
908 return "internal failure in parse_register_list";
913 /* If the expression starts with a curly brace it is a register list.
914 Otherwise it is a constant expression, whoes bits indicate which
915 registers are to be included in the list. */
917 if (* input_line_pointer != '{')
925 if (exp.X_op != O_constant)
926 return "constant expression or register list expected";
928 if (regs == type1_regs)
930 if (exp.X_add_number & 0xFFFFF000)
931 return "high bits set in register list expression";
933 for (reg = 20; reg < 32; reg ++)
934 if (exp.X_add_number & (1 << (reg - 20)))
936 for (i = 0; i < 32; i++)
941 else if (regs == type2_regs)
943 if (exp.X_add_number & 0xFFFE0000)
944 return "high bits set in register list expression";
946 for (reg = 1; reg < 16; reg ++)
947 if (exp.X_add_number & (1 << (reg - 1)))
949 for (i = 0; i < 32; i++)
954 if (exp.X_add_number & (1 << 15))
957 if (exp.X_add_number & (1 << 16))
960 else /* regs == type3_regs */
962 if (exp.X_add_number & 0xFFFE0000)
963 return "high bits set in register list expression";
965 for (reg = 16; reg < 32; reg ++)
966 if (exp.X_add_number & (1 << (reg - 16)))
968 for (i = 0; i < 32; i++)
973 if (exp.X_add_number & (1 << 16))
980 input_line_pointer ++;
982 /* Parse the register list until a terminator (closing curly brace or new-line) is found. */
985 if (register_name (& exp))
989 /* Locate the given register in the list, and if it is there, insert the corresponding bit into the instruction. */
990 for (i = 0; i < 32; i++)
992 if (regs[ i ] == exp.X_add_number)
1001 return "illegal register included in list";
1004 else if (system_register_name (& exp, true, true))
1006 if (regs == type1_regs)
1008 return "system registers cannot be included in list";
1010 else if (exp.X_add_number == 5)
1012 if (regs == type2_regs)
1013 return "PSW cannot be included in list";
1017 else if (exp.X_add_number < 4)
1020 return "High value system registers cannot be included in list";
1022 else if (* input_line_pointer == '}')
1024 input_line_pointer ++;
1027 else if (* input_line_pointer == ',')
1029 input_line_pointer ++;
1032 else if (* input_line_pointer == '-')
1034 /* We have encountered a range of registers: rX - rY */
1038 /* Skip the dash. */
1039 ++ input_line_pointer;
1041 /* Get the second register in the range. */
1042 if (! register_name (& exp2))
1044 return "second register should follow dash in register list";
1045 exp2.X_add_number = exp.X_add_number;
1048 /* Add the rest of the registers in the range. */
1049 for (j = exp.X_add_number + 1; j <= exp2.X_add_number; j++)
1053 /* Locate the given register in the list, and if it is there, insert the corresponding bit into the instruction. */
1054 for (i = 0; i < 32; i++)
1065 return "illegal register included in list";
1074 skip_white_space ();
1079 /* end-sanitize-v850e */
1081 CONST char * md_shortopts = "m:";
1083 struct option md_longopts[] =
1085 {NULL, no_argument, NULL, 0}
1087 size_t md_longopts_size = sizeof md_longopts;
1091 md_show_usage (stream)
1094 fprintf (stream, "V850 options:\n");
1095 fprintf (stream, "\t-mwarn-signed-overflow Warn if signed immediate values overflow\n");
1096 fprintf (stream, "\t-mwarn-unsigned-overflow Warn if unsigned immediate values overflow\n");
1097 fprintf (stream, "\t-mv850 The code is targeted at the v850\n");
1098 /* start-sanitize-v850e */
1099 fprintf (stream, "\t-mv850e The code is targeted at the v850e\n");
1100 fprintf (stream, "\t-mv850ea The code is targeted at the v850ea\n");
1101 /* end-sanitize-v850e */
1105 md_parse_option (c, arg)
1111 fprintf (stderr, "unknown command line option: -%c%s\n", c, arg);
1115 if (strcmp (arg, "warn-signed-overflow") == 0)
1117 warn_signed_overflows = TRUE;
1119 else if (strcmp (arg, "warn-unsigned-overflow") == 0)
1121 warn_unsigned_overflows = TRUE;
1123 else if (strcmp (arg, "v850") == 0)
1126 processor_mask = PROCESSOR_V850;
1128 /* start-sanitize-v850e */
1129 else if (strcmp (arg, "v850e") == 0)
1131 machine = bfd_mach_v850e;
1132 processor_mask = PROCESSOR_V850E;
1134 else if (strcmp (arg, "v850ea") == 0)
1136 machine = bfd_mach_v850ea;
1137 processor_mask = PROCESSOR_V850EA;
1139 /* end-sanitize-v850e */
1142 fprintf (stderr, "unknown command line option: -%c%s\n", c, arg);
1150 md_undefined_symbol (name)
1157 md_atof (type, litp, sizep)
1163 LITTLENUM_TYPE words[4];
1179 return "bad call to md_atof";
1182 t = atof_ieee (input_line_pointer, type, words);
1184 input_line_pointer = t;
1188 for (i = prec - 1; i >= 0; i--)
1190 md_number_to_chars (litp, (valueT) words[i], 2);
1200 md_convert_frag (abfd, sec, fragP)
1205 subseg_change (sec, 0);
1207 /* In range conditional or unconditional branch. */
1208 if (fragP->fr_subtype == 0 || fragP->fr_subtype == 2)
1210 fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol,
1211 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int)fragP->fr_opcode);
1215 /* Out of range conditional branch. Emit a branch around a jump. */
1216 else if (fragP->fr_subtype == 1)
1218 unsigned char *buffer =
1219 (unsigned char *) (fragP->fr_fix + fragP->fr_literal);
1221 /* Reverse the condition of the first branch. */
1223 /* Mask off all the displacement bits. */
1226 /* Now set the displacement bits so that we branch
1227 around the unconditional branch. */
1230 /* Now create the unconditional branch + fixup to the final
1232 md_number_to_chars (buffer + 2, 0x00000780, 4);
1233 fix_new (fragP, fragP->fr_fix + 2, 4, fragP->fr_symbol,
1234 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int)fragP->fr_opcode + 1);
1238 /* Out of range unconditional branch. Emit a jump. */
1239 else if (fragP->fr_subtype == 3)
1241 md_number_to_chars (fragP->fr_fix + fragP->fr_literal, 0x00000780, 4);
1242 fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
1243 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int)fragP->fr_opcode + 1);
1252 md_section_align (seg, addr)
1256 int align = bfd_get_section_alignment (stdoutput, seg);
1257 return ((addr + (1 << align) - 1) & (-1 << align));
1263 char * prev_name = "";
1264 register const struct v850_opcode * op;
1265 flagword applicable;
1267 /* start-sanitize-v850e */
1268 if (strncmp (TARGET_CPU, "v850ea", 6) == 0)
1271 machine = bfd_mach_v850ea;
1273 if (processor_mask == -1)
1274 processor_mask = PROCESSOR_V850EA;
1276 else if (strncmp (TARGET_CPU, "v850e", 5) == 0)
1279 machine = bfd_mach_v850e;
1281 if (processor_mask == -1)
1282 processor_mask = PROCESSOR_V850E;
1285 /* end-sanitize-v850e */
1286 if (strncmp (TARGET_CPU, "v850", 4) == 0)
1291 if (processor_mask == -1)
1292 processor_mask = PROCESSOR_V850;
1295 as_bad ("Unable to determine default target processor from string: %s",
1298 v850_hash = hash_new();
1300 /* Insert unique names into hash table. The V850 instruction set
1301 has many identical opcode names that have different opcodes based
1302 on the operands. This hash table then provides a quick index to
1303 the first opcode with a particular name in the opcode table. */
1308 if (strcmp (prev_name, op->name))
1310 prev_name = (char *) op->name;
1311 hash_insert (v850_hash, op->name, (char *) op);
1316 bfd_set_arch_mach (stdoutput, TARGET_ARCH, machine);
1318 applicable = bfd_applicable_section_flags (stdoutput);
1320 sdata_section = subseg_new (".sdata", 0);
1321 bfd_set_section_flags (stdoutput, sdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1323 tdata_section = subseg_new (".tdata", 0);
1324 bfd_set_section_flags (stdoutput, tdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1326 zdata_section = subseg_new (".zdata", 0);
1327 bfd_set_section_flags (stdoutput, zdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1329 sbss_section = subseg_new (".sbss", 0);
1330 bfd_set_section_flags (stdoutput, sbss_section, applicable & SEC_ALLOC);
1331 seg_info (sbss_section)->bss = 1;
1333 tbss_section = subseg_new (".tbss", 0);
1334 bfd_set_section_flags (stdoutput, tbss_section, applicable & SEC_ALLOC);
1335 seg_info (tbss_section)->bss = 1;
1337 zbss_section = subseg_new (".zbss", 0);
1338 bfd_set_section_flags (stdoutput, zbss_section, applicable & SEC_ALLOC);
1339 seg_info (zbss_section)->bss = 1;
1341 rosdata_section = subseg_new (".rosdata", 0);
1342 bfd_set_section_flags (stdoutput, rosdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY));
1344 rozdata_section = subseg_new (".rozdata", 0);
1345 bfd_set_section_flags (stdoutput, rozdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY));
1347 scommon_section = subseg_new (".scommon", 0);
1348 bfd_set_section_flags (stdoutput, scommon_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS | SEC_IS_COMMON));
1350 zcommon_section = subseg_new (".zcommon", 0);
1351 bfd_set_section_flags (stdoutput, zcommon_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS | SEC_IS_COMMON));
1353 tcommon_section = subseg_new (".tcommon", 0);
1354 bfd_set_section_flags (stdoutput, tcommon_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS | SEC_IS_COMMON));
1356 /* start-sanitize-v850e */
1357 call_table_data_section = subseg_new (".call_table_data", 0);
1358 bfd_set_section_flags (stdoutput, call_table_data_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1360 call_table_text_section = subseg_new (".call_table_text", 0);
1361 bfd_set_section_flags (stdoutput, call_table_text_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE));
1362 /* end-sanitize-v850e */
1366 /* start-sanitize-v850e */
1367 static bfd_reloc_code_real_type
1368 handle_ctoff (const struct v850_operand * operand)
1370 if (operand == NULL)
1371 return BFD_RELOC_V850_CALLT_16_16_OFFSET;
1373 if ( operand->bits != 6
1374 || operand->shift != 0)
1376 as_bad ("ctoff() relocation used on an instruction which does not support it");
1377 return BFD_RELOC_64; /* Used to indicate an error condition. */
1380 return BFD_RELOC_V850_CALLT_6_7_OFFSET;
1382 /* end-sanitize-v850e */
1384 static bfd_reloc_code_real_type
1385 handle_sdaoff (const struct v850_operand * operand)
1387 if (operand == NULL) return BFD_RELOC_V850_SDA_16_16_OFFSET;
1388 if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_SDA_15_16_OFFSET;
1389 /* start-sanitize-v850e */
1390 if (operand->bits == -1) return BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET;
1391 /* end-sanitize-v850e */
1393 if ( operand->bits != 16
1394 || operand->shift != 16)
1396 as_bad ("sdaoff() relocation used on an instruction which does not support it");
1397 return BFD_RELOC_64; /* Used to indicate an error condition. */
1400 return BFD_RELOC_V850_SDA_16_16_OFFSET;
1403 static bfd_reloc_code_real_type
1404 handle_zdaoff (const struct v850_operand * operand)
1406 if (operand == NULL) return BFD_RELOC_V850_ZDA_16_16_OFFSET;
1407 if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_ZDA_15_16_OFFSET;
1408 /* start-sanitize-v850e */
1409 if (operand->bits == -1) return BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET;
1410 /* end-sanitize-v850e */
1412 if ( operand->bits != 16
1413 || operand->shift != 16)
1415 as_bad ("zdaoff() relocation used on an instruction which does not support it");
1416 return BFD_RELOC_64; /* Used to indicate an error condition. */
1419 return BFD_RELOC_V850_ZDA_16_16_OFFSET;
1422 static bfd_reloc_code_real_type
1423 handle_tdaoff (const struct v850_operand * operand)
1425 if (operand == NULL) return BFD_RELOC_V850_TDA_7_7_OFFSET; /* data item, not an instruction. */
1426 if (operand->bits == 6 && operand->shift == 1) return BFD_RELOC_V850_TDA_6_8_OFFSET; /* sld.w/sst.w, operand: D8_6 */
1427 /* start-sanitize-v850e */
1428 if (operand->bits == 4 && operand->insert != NULL) return BFD_RELOC_V850_TDA_4_5_OFFSET; /* sld.hu, operand: D5-4 */
1429 if (operand->bits == 4 && operand->insert == NULL) return BFD_RELOC_V850_TDA_4_4_OFFSET; /* sld.bu, operand: D4 */
1430 /* end-sanitize-v850e */
1431 if (operand->bits == 16 && operand->shift == 16) return BFD_RELOC_V850_TDA_16_16_OFFSET; /* set1 & chums, operands: D16 */
1433 if (operand->bits != 7)
1435 as_bad ("tdaoff() relocation used on an instruction which does not support it");
1436 return BFD_RELOC_64; /* Used to indicate an error condition. */
1439 return operand->insert != NULL
1440 ? BFD_RELOC_V850_TDA_7_8_OFFSET /* sld.h/sst.h, operand: D8_7 */
1441 : BFD_RELOC_V850_TDA_7_7_OFFSET; /* sld.b/sst.b, opreand: D7 */
1444 /* Warning: The code in this function relies upon the definitions
1445 in the v850_operands[] array (defined in opcodes/v850-opc.c)
1446 matching the hard coded values contained herein. */
1448 static bfd_reloc_code_real_type
1449 v850_reloc_prefix (const struct v850_operand * operand)
1451 boolean paren_skipped = false;
1454 /* Skip leading opening parenthesis. */
1455 if (* input_line_pointer == '(')
1457 ++ input_line_pointer;
1458 paren_skipped = true;
1461 #define CHECK_(name, reloc) \
1462 if (strncmp (input_line_pointer, name##"(", strlen (name) + 1) == 0) \
1464 input_line_pointer += strlen (name); \
1468 CHECK_ ("hi0", BFD_RELOC_HI16);
1469 CHECK_ ("hi", BFD_RELOC_HI16_S);
1470 CHECK_ ("lo", BFD_RELOC_LO16);
1471 CHECK_ ("sdaoff", handle_sdaoff (operand));
1472 CHECK_ ("zdaoff", handle_zdaoff (operand));
1473 CHECK_ ("tdaoff", handle_tdaoff (operand));
1475 /* start-sanitize-v850e */
1476 CHECK_ ("hilo", BFD_RELOC_32);
1477 CHECK_ ("ctoff", handle_ctoff (operand));
1478 /* end-sanitize-v850e */
1480 /* Restore skipped parenthesis. */
1482 -- input_line_pointer;
1484 return BFD_RELOC_UNUSED;
1487 /* Insert an operand value into an instruction. */
1489 static unsigned long
1490 v850_insert_operand (insn, operand, val, file, line, str)
1492 const struct v850_operand * operand;
1498 if (operand->insert)
1500 const char * message = NULL;
1502 insn = operand->insert (insn, val, & message);
1503 if (message != NULL)
1505 if ((operand->flags & V850_OPERAND_SIGNED)
1506 && ! warn_signed_overflows
1507 && strstr (message, "out of range") != NULL)
1509 /* skip warning... */
1511 else if ((operand->flags & V850_OPERAND_SIGNED) == 0
1512 && ! warn_unsigned_overflows
1513 && strstr (message, "out of range") != NULL)
1515 /* skip warning... */
1519 if (file == (char *) NULL)
1520 as_warn ("%s: %s", str, message);
1522 as_warn_where (file, line, "%s: %s", str, message);
1526 if (file == (char *) NULL)
1529 as_warn_where (file, line, message);
1535 if (operand->bits != 32)
1540 if ((operand->flags & V850_OPERAND_SIGNED) != 0)
1542 if (! warn_signed_overflows)
1543 max = (1 << operand->bits) - 1;
1545 max = (1 << (operand->bits - 1)) - 1;
1547 min = - (1 << (operand->bits - 1));
1551 max = (1 << operand->bits) - 1;
1553 if (! warn_unsigned_overflows)
1554 min = - (1 << (operand->bits - 1));
1559 if (val < (offsetT) min || val > (offsetT) max)
1561 const char * err = "operand out of range (%s not between %ld and %ld)";
1564 /* Restore min and mix to expected values for decimal ranges. */
1565 if ((operand->flags & V850_OPERAND_SIGNED) && ! warn_signed_overflows)
1566 max = (1 << (operand->bits - 1)) - 1;
1568 if (! (operand->flags & V850_OPERAND_SIGNED)
1569 && ! warn_unsigned_overflows)
1574 sprintf (buf, "%s: ", str);
1576 sprint_value (buf + strlen (buf), val);
1579 sprint_value (buf, val);
1581 if (file == (char *) NULL)
1582 as_warn (err, buf, min, max);
1584 as_warn_where (file, line, err, buf, min, max);
1588 insn |= (((long) val & ((1 << operand->bits) - 1)) << operand->shift);
1595 static char copy_of_instruction [128];
1602 char * start_of_operands;
1603 struct v850_opcode * opcode;
1604 struct v850_opcode * next_opcode;
1605 const unsigned char * opindex_ptr;
1609 unsigned long insn_size;
1613 boolean extra_data_after_insn = false;
1614 unsigned extra_data_len;
1615 unsigned long extra_data;
1616 char * saved_input_line_pointer;
1619 strncpy (copy_of_instruction, str, sizeof (copy_of_instruction) - 1);
1621 /* Get the opcode. */
1622 for (s = str; *s != '\0' && ! isspace (*s); s++)
1628 /* find the first opcode with the proper name */
1629 opcode = (struct v850_opcode *) hash_find (v850_hash, str);
1632 as_bad ("Unrecognized opcode: `%s'", str);
1633 ignore_rest_of_line ();
1638 while (isspace (* str))
1641 start_of_operands = str;
1643 saved_input_line_pointer = input_line_pointer;
1647 const char * errmsg = NULL;
1651 if ((opcode->processors & processor_mask) == 0)
1653 errmsg = "Target processor does not support this instruction.";
1660 insn = opcode->opcode;
1661 extra_data_after_insn = false;
1663 input_line_pointer = str = start_of_operands;
1665 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
1667 const struct v850_operand * operand;
1670 bfd_reloc_code_real_type reloc;
1672 if (next_opindex == 0)
1674 operand = & v850_operands[ * opindex_ptr ];
1678 operand = & v850_operands[ next_opindex ];
1684 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
1687 if (operand->flags & V850_OPERAND_RELAX)
1690 /* Gather the operand. */
1691 hold = input_line_pointer;
1692 input_line_pointer = str;
1694 /* lo(), hi(), hi0(), etc... */
1695 if ((reloc = v850_reloc_prefix (operand)) != BFD_RELOC_UNUSED)
1697 if (reloc == BFD_RELOC_64) /* This is a fake reloc, used to indicate an error condition. */
1705 if (ex.X_op == O_constant)
1709 case BFD_RELOC_V850_ZDA_16_16_OFFSET:
1710 /* To cope with "not1 7, zdaoff(0xfffff006)[r0]" and the like. */
1713 case BFD_RELOC_LO16:
1715 /* Truncate, then sign extend the value. */
1716 ex.X_add_number = SEXT16 (ex.X_add_number);
1720 case BFD_RELOC_HI16:
1722 /* Truncate, then sign extend the value. */
1723 ex.X_add_number = SEXT16 (ex.X_add_number >> 16);
1727 case BFD_RELOC_HI16_S:
1729 /* Truncate, then sign extend the value. */
1730 int temp = (ex.X_add_number >> 16) & 0xffff;
1732 temp += (ex.X_add_number >> 15) & 1;
1734 ex.X_add_number = SEXT16 (temp);
1738 /* start-sanitize-v850e */
1740 if ((operand->flags & V850E_IMMEDIATE32) == 0)
1742 errmsg = "immediate operand is too large";
1746 extra_data_after_insn = true;
1748 extra_data = ex.X_add_number;
1749 ex.X_add_number = 0;
1751 /* end-sanitize-v850e */
1754 fprintf (stderr, "reloc: %d\n", reloc);
1755 as_bad ("AAARG -> unhandled constant reloc");
1759 insn = v850_insert_operand (insn, operand, ex.X_add_number,
1760 (char *) NULL, 0, copy_of_instruction);
1764 /* start-sanitize-v850e */
1765 if (reloc == BFD_RELOC_32)
1767 if ((operand->flags & V850E_IMMEDIATE32) == 0)
1769 errmsg = "immediate operand is too large";
1773 extra_data_after_insn = true;
1775 extra_data = ex.X_add_number;
1777 /* end-sanitize-v850e */
1779 if (fc > MAX_INSN_FIXUPS)
1780 as_fatal ("too many fixups");
1782 fixups[ fc ].exp = ex;
1783 fixups[ fc ].opindex = * opindex_ptr;
1784 fixups[ fc ].reloc = reloc;
1792 if ((operand->flags & V850_OPERAND_REG) != 0)
1794 if (!register_name (& ex))
1796 errmsg = "invalid register name";
1799 if ((operand->flags & V850_NOT_R0)
1800 && ex.X_add_number == 0)
1802 errmsg = "register r0 cannot be used here";
1804 /* Force an error message to be generated by
1805 skipping over any following potential matches
1809 if (* input_line_pointer == ']')
1810 ++ input_line_pointer;
1813 else if ((operand->flags & V850_OPERAND_SRG) != 0)
1815 if (!system_register_name (& ex, true
1816 /* start-sanitize-v850e */
1818 /* end-sanitize-v850e */
1821 errmsg = "invalid system register name";
1824 else if ((operand->flags & V850_OPERAND_EP) != 0)
1826 char * start = input_line_pointer;
1827 char c = get_symbol_end ();
1829 if (strcmp (start, "ep") != 0 && strcmp (start, "r30") != 0)
1831 /* Put things back the way we found them. */
1832 *input_line_pointer = c;
1833 input_line_pointer = start;
1834 errmsg = "expected EP register";
1838 *input_line_pointer = c;
1839 str = input_line_pointer;
1840 input_line_pointer = hold;
1842 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
1846 else if ((operand->flags & V850_OPERAND_CC) != 0)
1848 if (!cc_name (& ex))
1850 errmsg = "invalid condition code name";
1853 /* start-sanitize-v850e */
1854 else if (operand->flags & V850E_PUSH_POP)
1856 errmsg = parse_register_list (& insn, operand);
1858 /* The parse_register_list() function has already done everything, so fake a dummy expression. */
1859 ex.X_op = O_constant;
1860 ex.X_add_number = 0;
1862 else if (operand->flags & V850E_IMMEDIATE16)
1866 if (ex.X_op != O_constant)
1867 errmsg = "constant expression expected";
1868 else if (ex.X_add_number & 0xffff0000)
1870 if (ex.X_add_number & 0xffff)
1871 errmsg = "constant too big to fit into instruction";
1872 else if ((insn & 0x001fffc0) == 0x00130780)
1873 ex.X_add_number >>= 16;
1875 errmsg = "constant too big to fit into instruction";
1878 extra_data_after_insn = true;
1880 extra_data = ex.X_add_number;
1881 ex.X_add_number = 0;
1883 else if (operand->flags & V850E_IMMEDIATE32)
1887 if (ex.X_op != O_constant)
1888 errmsg = "constant expression expected";
1890 extra_data_after_insn = true;
1892 extra_data = ex.X_add_number;
1893 ex.X_add_number = 0;
1895 /* end-sanitize-v850e */
1896 else if (register_name (& ex)
1897 && (operand->flags & V850_OPERAND_REG) == 0)
1899 /* It is possible that an alias has been defined that
1900 matches a register name. For example the code may
1901 include a ".set ZERO, 0" directive, which matches
1902 the register name "zero". Attempt to reparse the
1903 field as an expression, and only complain if we
1904 cannot generate a constant. */
1906 input_line_pointer = str;
1910 if (ex.X_op != O_constant)
1911 errmsg = "syntax error: register not expected";
1913 else if (system_register_name (& ex, false
1914 /* start-sanitize-v850e */
1916 /* end-sanitize-v850e */
1918 && (operand->flags & V850_OPERAND_SRG) == 0)
1920 errmsg = "syntax error: system register not expected";
1922 else if (cc_name (&ex)
1923 && (operand->flags & V850_OPERAND_CC) == 0)
1925 errmsg = "syntax error: condition code not expected";
1930 /* start-sanitize-v850e */
1932 If we are assembling a MOV instruction (or a CALLT.... :-)
1933 and the immediate value does not fit into the bits available
1934 then create a fake error so that the next MOV instruction
1935 will be selected. This one has a 32 bit immediate field. */
1937 if (((insn & 0x07e0) == 0x0200)
1938 && ex.X_op == O_constant
1939 && (ex.X_add_number < (- (1 << (operand->bits - 1))) || ex.X_add_number > ((1 << operand->bits) - 1)))
1940 errmsg = "immediate constant is too large";
1941 /* end-sanitize-v850e */
1947 /* fprintf (stderr, " insn: %x, operand %d, op: %d, add_number: %d\n", insn, opindex_ptr - opcode->operands, ex.X_op, ex.X_add_number); */
1952 errmsg = "illegal operand";
1955 errmsg = "missing operand";
1958 if ((operand->flags & (V850_OPERAND_REG | V850_OPERAND_SRG)) == 0)
1960 errmsg = "invalid operand";
1963 insn = v850_insert_operand (insn, operand, ex.X_add_number,
1964 (char *) NULL, 0, copy_of_instruction);
1968 insn = v850_insert_operand (insn, operand, ex.X_add_number,
1969 (char *) NULL, 0, copy_of_instruction);
1973 /* We need to generate a fixup for this expression. */
1974 if (fc >= MAX_INSN_FIXUPS)
1975 as_fatal ("too many fixups");
1977 fixups[ fc ].exp = ex;
1978 fixups[ fc ].opindex = * opindex_ptr;
1979 fixups[ fc ].reloc = BFD_RELOC_UNUSED;
1985 str = input_line_pointer;
1986 input_line_pointer = hold;
1988 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']'
1997 next_opcode = opcode + 1;
1998 if (next_opcode->name != NULL && strcmp (next_opcode->name, opcode->name) == 0)
2000 opcode = next_opcode;
2005 ignore_rest_of_line ();
2006 input_line_pointer = saved_input_line_pointer;
2012 while (isspace (*str))
2016 as_bad ("junk at end of line: `%s'", str);
2018 input_line_pointer = str;
2020 /* Write out the instruction. */
2022 if (relaxable && fc > 0)
2027 if (!strcmp (opcode->name, "br"))
2029 f = frag_var (rs_machine_dependent, 4, 2, 2,
2030 fixups[0].exp.X_add_symbol,
2031 fixups[0].exp.X_add_number,
2032 (char *)fixups[0].opindex);
2033 md_number_to_chars (f, insn, insn_size);
2034 md_number_to_chars (f + 2, 0, 2);
2038 f = frag_var (rs_machine_dependent, 6, 4, 0,
2039 fixups[0].exp.X_add_symbol,
2040 fixups[0].exp.X_add_number,
2041 (char *)fixups[0].opindex);
2042 md_number_to_chars (f, insn, insn_size);
2043 md_number_to_chars (f + 2, 0, 4);
2048 /* Four byte insns have an opcode with the two high bits on. */
2049 if ((insn & 0x0600) == 0x0600)
2054 /* start-sanitize-v850e */
2055 /* Special case: 32 bit MOV */
2056 if ((insn & 0xffe0) == 0x0620)
2058 /* end-sanitize-v850e */
2060 f = frag_more (insn_size);
2062 md_number_to_chars (f, insn, insn_size);
2064 if (extra_data_after_insn)
2066 f = frag_more (extra_data_len);
2068 md_number_to_chars (f, extra_data, extra_data_len);
2070 extra_data_after_insn = false;
2074 /* Create any fixups. At this point we do not use a
2075 bfd_reloc_code_real_type, but instead just use the
2076 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2077 handle fixups for any operand type, although that is admittedly
2078 not a very exciting feature. We pick a BFD reloc type in
2080 for (i = 0; i < fc; i++)
2082 const struct v850_operand * operand;
2083 bfd_reloc_code_real_type reloc;
2085 operand = & v850_operands[ fixups[i].opindex ];
2087 reloc = fixups[i].reloc;
2089 if (reloc != BFD_RELOC_UNUSED)
2091 reloc_howto_type * reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
2099 size = bfd_get_reloc_size (reloc_howto);
2101 if (size != 2 && size != 4) /* XXX this will abort on an R_V850_8 reloc - is this reloc actually used ? */
2104 address = (f - frag_now->fr_literal) + insn_size - size;
2106 if (reloc == BFD_RELOC_32)
2111 fixP = fix_new_exp (frag_now, address, size,
2113 reloc_howto->pc_relative,
2118 case BFD_RELOC_LO16:
2119 case BFD_RELOC_HI16:
2120 case BFD_RELOC_HI16_S:
2121 fixP->fx_no_overflow = 1;
2129 f - frag_now->fr_literal, 4,
2131 1 /* FIXME: V850_OPERAND_RELATIVE ??? */,
2132 (bfd_reloc_code_real_type) (fixups[i].opindex + (int) BFD_RELOC_UNUSED)
2137 input_line_pointer = saved_input_line_pointer;
2141 /* If while processing a fixup, a reloc really needs to be created */
2142 /* then it is done here. */
2145 tc_gen_reloc (seg, fixp)
2151 reloc = (arelent *) xmalloc (sizeof (arelent));
2152 reloc->sym_ptr_ptr = & fixp->fx_addsy->bsym;
2153 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
2154 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
2156 if (reloc->howto == (reloc_howto_type *) NULL)
2158 as_bad_where (fixp->fx_file, fixp->fx_line,
2159 "reloc %d not supported by object file format", (int)fixp->fx_r_type);
2166 reloc->addend = fixp->fx_addnumber;
2171 /* Assume everything will fit in two bytes, then expand as necessary. */
2173 md_estimate_size_before_relax (fragp, seg)
2177 if (fragp->fr_subtype == 0)
2179 else if (fragp->fr_subtype == 2)
2187 md_pcrel_from (fixp)
2190 /* If the symbol is undefined, or in a section other than our own,
2191 then let the linker figure it out. */
2192 if (fixp->fx_addsy != (symbolS *) NULL && ! S_IS_DEFINED (fixp->fx_addsy))
2194 /* The symbol is undefined. Let the linker figure it out. */
2197 return fixp->fx_frag->fr_address + fixp->fx_where;
2201 md_apply_fix3 (fixp, valuep, seg)
2209 if (fixp->fx_addsy == (symbolS *) NULL)
2214 else if (fixp->fx_pcrel)
2218 value = fixp->fx_offset;
2219 if (fixp->fx_subsy != (symbolS *) NULL)
2221 if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section)
2222 value -= S_GET_VALUE (fixp->fx_subsy);
2225 /* We don't actually support subtracting a symbol. */
2226 as_bad_where (fixp->fx_file, fixp->fx_line,
2227 "expression too complex");
2232 if ((int) fixp->fx_r_type >= (int) BFD_RELOC_UNUSED)
2235 const struct v850_operand * operand;
2238 opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED;
2239 operand = & v850_operands[ opindex ];
2241 /* Fetch the instruction, insert the fully resolved operand
2242 value, and stuff the instruction back again.
2244 Note the instruction has been stored in little endian
2246 where = fixp->fx_frag->fr_literal + fixp->fx_where;
2248 insn = bfd_getl32 ((unsigned char *) where);
2249 insn = v850_insert_operand (insn, operand, (offsetT) value,
2250 fixp->fx_file, fixp->fx_line, NULL);
2251 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
2255 /* Nothing else to do here. */
2259 /* Determine a BFD reloc value based on the operand information.
2260 We are only prepared to turn a few of the operands into relocs. */
2262 if (operand->bits == 22)
2263 fixp->fx_r_type = BFD_RELOC_V850_22_PCREL;
2264 else if (operand->bits == 9)
2265 fixp->fx_r_type = BFD_RELOC_V850_9_PCREL;
2268 /* fprintf (stderr, "bits: %d, insn: %x\n", operand->bits, insn); */
2270 as_bad_where(fixp->fx_file, fixp->fx_line,
2271 "unresolved expression that must be resolved");
2276 else if (fixp->fx_done)
2278 /* We still have to insert the value into memory! */
2279 where = fixp->fx_frag->fr_literal + fixp->fx_where;
2281 if (fixp->fx_size == 1)
2282 *where = value & 0xff;
2283 else if (fixp->fx_size == 2)
2284 bfd_putl16 (value & 0xffff, (unsigned char *) where);
2285 else if (fixp->fx_size == 4)
2286 bfd_putl32 (value, (unsigned char *) where);
2289 fixp->fx_addnumber = value;
2294 /* Parse a cons expression. We have to handle hi(), lo(), etc
2297 parse_cons_expression_v850 (exp)
2300 /* See if there's a reloc prefix like hi() we have to handle. */
2301 hold_cons_reloc = v850_reloc_prefix (NULL);
2303 /* Do normal expression parsing. */
2307 /* Create a fixup for a cons expression. If parse_cons_expression_v850
2308 found a reloc prefix, then we use that reloc, else we choose an
2309 appropriate one based on the size of the expression. */
2311 cons_fix_new_v850 (frag, where, size, exp)
2317 if (hold_cons_reloc == BFD_RELOC_UNUSED)
2320 hold_cons_reloc = BFD_RELOC_32;
2322 hold_cons_reloc = BFD_RELOC_16;
2324 hold_cons_reloc = BFD_RELOC_8;
2328 fix_new_exp (frag, where, size, exp, 0, hold_cons_reloc);
2330 fix_new (frag, where, size, NULL, 0, 0, hold_cons_reloc);