1 /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000)
2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
4 Written by Ian Lance Taylor, Cygnus Support.
6 This file is part of GAS, the GNU Assembler.
8 GAS is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GAS is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GAS; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
24 #include "safe-ctype.h"
26 #include "dw2gencfi.h"
27 #include "opcode/ppc.h"
31 #include "dwarf2dbg.h"
38 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
40 /* Tell the main code what the endianness is. */
41 extern int target_big_endian;
43 /* Whether or not, we've set target_big_endian. */
44 static int set_target_endian = 0;
46 /* Whether to use user friendly register names. */
47 #ifndef TARGET_REG_NAMES_P
49 #define TARGET_REG_NAMES_P TRUE
51 #define TARGET_REG_NAMES_P FALSE
55 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
58 /* #lo(value) denotes the least significant 16 bits of the indicated. */
59 #define PPC_LO(v) ((v) & 0xffff)
61 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
62 #define PPC_HI(v) (((v) >> 16) & 0xffff)
64 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
65 the indicated value, compensating for #lo() being treated as a
67 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
69 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
70 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
72 /* #highera(value) denotes bits 32 through 47 of the indicated value,
73 compensating for #lo() being treated as a signed number. */
74 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
76 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
77 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
79 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
80 compensating for #lo being treated as a signed number. */
81 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
83 #define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000)
85 static bfd_boolean reg_names_p = TARGET_REG_NAMES_P;
87 static bfd_boolean register_name PARAMS ((expressionS *));
88 static void ppc_set_cpu PARAMS ((void));
89 static unsigned long ppc_insert_operand
90 PARAMS ((unsigned long insn, const struct powerpc_operand *operand,
91 offsetT val, char *file, unsigned int line));
92 static void ppc_macro PARAMS ((char *str, const struct powerpc_macro *macro));
93 static void ppc_byte PARAMS ((int));
95 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
96 static int ppc_is_toc_sym PARAMS ((symbolS *sym));
97 static void ppc_tc PARAMS ((int));
98 static void ppc_machine PARAMS ((int));
102 static void ppc_comm PARAMS ((int));
103 static void ppc_bb PARAMS ((int));
104 static void ppc_bc PARAMS ((int));
105 static void ppc_bf PARAMS ((int));
106 static void ppc_biei PARAMS ((int));
107 static void ppc_bs PARAMS ((int));
108 static void ppc_eb PARAMS ((int));
109 static void ppc_ec PARAMS ((int));
110 static void ppc_ef PARAMS ((int));
111 static void ppc_es PARAMS ((int));
112 static void ppc_csect PARAMS ((int));
113 static void ppc_change_csect PARAMS ((symbolS *, offsetT));
114 static void ppc_function PARAMS ((int));
115 static void ppc_extern PARAMS ((int));
116 static void ppc_lglobl PARAMS ((int));
117 static void ppc_section PARAMS ((int));
118 static void ppc_named_section PARAMS ((int));
119 static void ppc_stabx PARAMS ((int));
120 static void ppc_rename PARAMS ((int));
121 static void ppc_toc PARAMS ((int));
122 static void ppc_xcoff_cons PARAMS ((int));
123 static void ppc_vbyte PARAMS ((int));
127 static bfd_reloc_code_real_type ppc_elf_suffix PARAMS ((char **, expressionS *));
128 static void ppc_elf_cons PARAMS ((int));
129 static void ppc_elf_rdata PARAMS ((int));
130 static void ppc_elf_lcomm PARAMS ((int));
131 static void ppc_elf_validate_fix PARAMS ((fixS *, segT));
132 static void ppc_apuinfo_section_add PARAMS ((unsigned int apu, unsigned int version));
136 static void ppc_set_current_section PARAMS ((segT));
137 static void ppc_previous PARAMS ((int));
138 static void ppc_pdata PARAMS ((int));
139 static void ppc_ydata PARAMS ((int));
140 static void ppc_reldata PARAMS ((int));
141 static void ppc_rdata PARAMS ((int));
142 static void ppc_ualong PARAMS ((int));
143 static void ppc_znop PARAMS ((int));
144 static void ppc_pe_comm PARAMS ((int));
145 static void ppc_pe_section PARAMS ((int));
146 static void ppc_pe_function PARAMS ((int));
147 static void ppc_pe_tocd PARAMS ((int));
150 /* Generic assembler global variables which must be defined by all
154 /* This string holds the chars that always start a comment. If the
155 pre-processor is disabled, these aren't very useful. The macro
156 tc_comment_chars points to this. We use this, rather than the
157 usual comment_chars, so that we can switch for Solaris conventions. */
158 static const char ppc_solaris_comment_chars[] = "#!";
159 static const char ppc_eabi_comment_chars[] = "#";
161 #ifdef TARGET_SOLARIS_COMMENT
162 const char *ppc_comment_chars = ppc_solaris_comment_chars;
164 const char *ppc_comment_chars = ppc_eabi_comment_chars;
167 const char comment_chars[] = "#";
170 /* Characters which start a comment at the beginning of a line. */
171 const char line_comment_chars[] = "#";
173 /* Characters which may be used to separate multiple commands on a
175 const char line_separator_chars[] = ";";
177 /* Characters which are used to indicate an exponent in a floating
179 const char EXP_CHARS[] = "eE";
181 /* Characters which mean that a number is a floating point constant,
183 const char FLT_CHARS[] = "dD";
185 /* Anything that can start an operand needs to be mentioned here,
186 to stop the input scrubber eating whitespace. */
187 const char ppc_symbol_chars[] = "%[";
189 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
190 int ppc_cie_data_alignment;
192 /* The target specific pseudo-ops which we support. */
194 const pseudo_typeS md_pseudo_table[] =
196 /* Pseudo-ops which must be overridden. */
197 { "byte", ppc_byte, 0 },
200 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
201 legitimately belong in the obj-*.c file. However, XCOFF is based
202 on COFF, and is only implemented for the RS/6000. We just use
203 obj-coff.c, and add what we need here. */
204 { "comm", ppc_comm, 0 },
205 { "lcomm", ppc_comm, 1 },
209 { "bi", ppc_biei, 0 },
211 { "csect", ppc_csect, 0 },
212 { "data", ppc_section, 'd' },
216 { "ei", ppc_biei, 1 },
218 { "extern", ppc_extern, 0 },
219 { "function", ppc_function, 0 },
220 { "lglobl", ppc_lglobl, 0 },
221 { "rename", ppc_rename, 0 },
222 { "section", ppc_named_section, 0 },
223 { "stabx", ppc_stabx, 0 },
224 { "text", ppc_section, 't' },
225 { "toc", ppc_toc, 0 },
226 { "long", ppc_xcoff_cons, 2 },
227 { "llong", ppc_xcoff_cons, 3 },
228 { "word", ppc_xcoff_cons, 1 },
229 { "short", ppc_xcoff_cons, 1 },
230 { "vbyte", ppc_vbyte, 0 },
234 { "llong", ppc_elf_cons, 8 },
235 { "quad", ppc_elf_cons, 8 },
236 { "long", ppc_elf_cons, 4 },
237 { "word", ppc_elf_cons, 2 },
238 { "short", ppc_elf_cons, 2 },
239 { "rdata", ppc_elf_rdata, 0 },
240 { "rodata", ppc_elf_rdata, 0 },
241 { "lcomm", ppc_elf_lcomm, 0 },
245 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
246 { "previous", ppc_previous, 0 },
247 { "pdata", ppc_pdata, 0 },
248 { "ydata", ppc_ydata, 0 },
249 { "reldata", ppc_reldata, 0 },
250 { "rdata", ppc_rdata, 0 },
251 { "ualong", ppc_ualong, 0 },
252 { "znop", ppc_znop, 0 },
253 { "comm", ppc_pe_comm, 0 },
254 { "lcomm", ppc_pe_comm, 1 },
255 { "section", ppc_pe_section, 0 },
256 { "function", ppc_pe_function,0 },
257 { "tocd", ppc_pe_tocd, 0 },
260 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
262 { "machine", ppc_machine, 0 },
269 /* Predefined register names if -mregnames (or default for Windows NT).
270 In general, there are lots of them, in an attempt to be compatible
271 with a number of other Windows NT assemblers. */
273 /* Structure to hold information about predefined registers. */
280 /* List of registers that are pre-defined:
282 Each general register has predefined names of the form:
283 1. r<reg_num> which has the value <reg_num>.
284 2. r.<reg_num> which has the value <reg_num>.
286 Each floating point register has predefined names of the form:
287 1. f<reg_num> which has the value <reg_num>.
288 2. f.<reg_num> which has the value <reg_num>.
290 Each vector unit register has predefined names of the form:
291 1. v<reg_num> which has the value <reg_num>.
292 2. v.<reg_num> which has the value <reg_num>.
294 Each condition register has predefined names of the form:
295 1. cr<reg_num> which has the value <reg_num>.
296 2. cr.<reg_num> which has the value <reg_num>.
298 There are individual registers as well:
299 sp or r.sp has the value 1
300 rtoc or r.toc has the value 2
301 fpscr has the value 0
307 dsisr has the value 18
309 sdr1 has the value 25
310 srr0 has the value 26
311 srr1 has the value 27
313 The table is sorted. Suitable for searching by a binary search. */
315 static const struct pd_reg pre_defined_registers[] =
317 { "cr.0", 0 }, /* Condition Registers */
337 { "dar", 19 }, /* Data Access Register */
338 { "dec", 22 }, /* Decrementer */
339 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
341 { "f.0", 0 }, /* Floating point registers */
409 { "lr", 8 }, /* Link Register */
413 { "r.0", 0 }, /* General Purpose Registers */
446 { "r.sp", 1 }, /* Stack Pointer */
448 { "r.toc", 2 }, /* Pointer to the table of contents */
450 { "r0", 0 }, /* More general purpose registers */
483 { "rtoc", 2 }, /* Table of contents */
485 { "sdr1", 25 }, /* Storage Description Register 1 */
489 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
490 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
492 { "v.0", 0 }, /* Vector registers */
562 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
564 /* Given NAME, find the register number associated with that name, return
565 the integer value associated with the given name or -1 on failure. */
567 static int reg_name_search
568 PARAMS ((const struct pd_reg *, int, const char * name));
571 reg_name_search (regs, regcount, name)
572 const struct pd_reg *regs;
576 int middle, low, high;
584 middle = (low + high) / 2;
585 cmp = strcasecmp (name, regs[middle].name);
591 return regs[middle].value;
599 * Summary of register_name.
601 * in: Input_line_pointer points to 1st char of operand.
603 * out: A expressionS.
604 * The operand may have been a register: in this case, X_op == O_register,
605 * X_add_number is set to the register number, and truth is returned.
606 * Input_line_pointer->(next non-blank) char after operand, or is in its
611 register_name (expressionP)
612 expressionS *expressionP;
619 /* Find the spelling of the operand. */
620 start = name = input_line_pointer;
621 if (name[0] == '%' && ISALPHA (name[1]))
622 name = ++input_line_pointer;
624 else if (!reg_names_p || !ISALPHA (name[0]))
627 c = get_symbol_end ();
628 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
630 /* Put back the delimiting char. */
631 *input_line_pointer = c;
633 /* Look to see if it's in the register table. */
636 expressionP->X_op = O_register;
637 expressionP->X_add_number = reg_number;
639 /* Make the rest nice. */
640 expressionP->X_add_symbol = NULL;
641 expressionP->X_op_symbol = NULL;
645 /* Reset the line as if we had not done anything. */
646 input_line_pointer = start;
650 /* This function is called for each symbol seen in an expression. It
651 handles the special parsing which PowerPC assemblers are supposed
652 to use for condition codes. */
654 /* Whether to do the special parsing. */
655 static bfd_boolean cr_operand;
657 /* Names to recognize in a condition code. This table is sorted. */
658 static const struct pd_reg cr_names[] =
675 /* Parsing function. This returns non-zero if it recognized an
679 ppc_parse_name (name, expr)
688 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
693 expr->X_op = O_constant;
694 expr->X_add_number = val;
699 /* Local variables. */
701 /* The type of processor we are assembling for. This is one or more
702 of the PPC_OPCODE flags defined in opcode/ppc.h. */
703 static unsigned long ppc_cpu = 0;
705 /* Whether to target xcoff64/elf64. */
706 static unsigned int ppc_obj64 = BFD_DEFAULT_TARGET_SIZE == 64;
708 /* Opcode hash table. */
709 static struct hash_control *ppc_hash;
711 /* Macro hash table. */
712 static struct hash_control *ppc_macro_hash;
715 /* What type of shared library support to use. */
716 static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE;
718 /* Flags to set in the elf header. */
719 static flagword ppc_flags = 0;
721 /* Whether this is Solaris or not. */
722 #ifdef TARGET_SOLARIS_COMMENT
723 #define SOLARIS_P TRUE
725 #define SOLARIS_P FALSE
728 static bfd_boolean msolaris = SOLARIS_P;
733 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
734 using a bunch of different sections. These assembler sections,
735 however, are all encompassed within the .text or .data sections of
736 the final output file. We handle this by using different
737 subsegments within these main segments. */
739 /* Next subsegment to allocate within the .text segment. */
740 static subsegT ppc_text_subsegment = 2;
742 /* Linked list of csects in the text section. */
743 static symbolS *ppc_text_csects;
745 /* Next subsegment to allocate within the .data segment. */
746 static subsegT ppc_data_subsegment = 2;
748 /* Linked list of csects in the data section. */
749 static symbolS *ppc_data_csects;
751 /* The current csect. */
752 static symbolS *ppc_current_csect;
754 /* The RS/6000 assembler uses a TOC which holds addresses of functions
755 and variables. Symbols are put in the TOC with the .tc pseudo-op.
756 A special relocation is used when accessing TOC entries. We handle
757 the TOC as a subsegment within the .data segment. We set it up if
758 we see a .toc pseudo-op, and save the csect symbol here. */
759 static symbolS *ppc_toc_csect;
761 /* The first frag in the TOC subsegment. */
762 static fragS *ppc_toc_frag;
764 /* The first frag in the first subsegment after the TOC in the .data
765 segment. NULL if there are no subsegments after the TOC. */
766 static fragS *ppc_after_toc_frag;
768 /* The current static block. */
769 static symbolS *ppc_current_block;
771 /* The COFF debugging section; set by md_begin. This is not the
772 .debug section, but is instead the secret BFD section which will
773 cause BFD to set the section number of a symbol to N_DEBUG. */
774 static asection *ppc_coff_debug_section;
776 #endif /* OBJ_XCOFF */
780 /* Various sections that we need for PE coff support. */
781 static segT ydata_section;
782 static segT pdata_section;
783 static segT reldata_section;
784 static segT rdata_section;
785 static segT tocdata_section;
787 /* The current section and the previous section. See ppc_previous. */
788 static segT ppc_previous_section;
789 static segT ppc_current_section;
794 symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
795 #define PPC_APUINFO_ISEL 0x40
796 #define PPC_APUINFO_PMR 0x41
797 #define PPC_APUINFO_RFMCI 0x42
798 #define PPC_APUINFO_CACHELCK 0x43
799 #define PPC_APUINFO_SPE 0x100
800 #define PPC_APUINFO_EFS 0x101
801 #define PPC_APUINFO_BRLOCK 0x102
804 * We keep a list of APUinfo
806 unsigned long *ppc_apuinfo_list;
807 unsigned int ppc_apuinfo_num;
808 unsigned int ppc_apuinfo_num_alloc;
812 const char *const md_shortopts = "b:l:usm:K:VQ:";
814 const char *const md_shortopts = "um:";
816 const struct option md_longopts[] = {
817 {NULL, no_argument, NULL, 0}
819 const size_t md_longopts_size = sizeof (md_longopts);
822 /* Handle -m options that set cpu type, and .machine arg. */
825 parse_cpu (const char *arg)
827 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
829 if (strcmp (arg, "pwrx") == 0 || strcmp (arg, "pwr2") == 0)
830 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32;
831 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
832 else if (strcmp (arg, "pwr") == 0)
833 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32;
834 /* -m601 means to assemble for the PowerPC 601, which includes
835 instructions that are holdovers from the Power. */
836 else if (strcmp (arg, "601") == 0)
837 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
838 | PPC_OPCODE_601 | PPC_OPCODE_32);
839 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
841 else if (strcmp (arg, "ppc") == 0
842 || strcmp (arg, "ppc32") == 0
843 || strcmp (arg, "603") == 0
844 || strcmp (arg, "604") == 0)
845 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
846 /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */
847 else if (strcmp (arg, "403") == 0
848 || strcmp (arg, "405") == 0)
849 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
850 | PPC_OPCODE_403 | PPC_OPCODE_32);
851 else if (strcmp (arg, "440") == 0)
852 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32
853 | PPC_OPCODE_440 | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI);
854 else if (strcmp (arg, "7400") == 0
855 || strcmp (arg, "7410") == 0
856 || strcmp (arg, "7450") == 0
857 || strcmp (arg, "7455") == 0)
858 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
859 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_32);
860 else if (strcmp (arg, "e300") == 0)
861 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32
863 else if (strcmp (arg, "altivec") == 0)
866 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC;
868 ppc_cpu |= PPC_OPCODE_ALTIVEC;
870 else if (strcmp (arg, "e500") == 0 || strcmp (arg, "e500x2") == 0)
872 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
873 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
874 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
877 else if (strcmp (arg, "spe") == 0)
880 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_SPE | PPC_OPCODE_EFS;
882 ppc_cpu |= PPC_OPCODE_SPE;
884 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
886 else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0)
888 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
890 else if (strcmp (arg, "ppc64bridge") == 0)
892 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
893 | PPC_OPCODE_64_BRIDGE | PPC_OPCODE_64);
895 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
896 else if (strcmp (arg, "booke") == 0 || strcmp (arg, "booke32") == 0)
898 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32;
900 /* -mbooke64 means enable 64-bit BookE support. */
901 else if (strcmp (arg, "booke64") == 0)
903 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE
904 | PPC_OPCODE_BOOKE64 | PPC_OPCODE_64);
906 else if (strcmp (arg, "power4") == 0)
908 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
909 | PPC_OPCODE_64 | PPC_OPCODE_POWER4);
911 else if (strcmp (arg, "power5") == 0)
913 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
914 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
915 | PPC_OPCODE_POWER5);
917 else if (strcmp (arg, "power6") == 0)
919 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
920 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
921 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6);
923 else if (strcmp (arg, "cell") == 0)
925 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
926 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
929 /* -mcom means assemble for the common intersection between Power
930 and PowerPC. At present, we just allow the union, rather
931 than the intersection. */
932 else if (strcmp (arg, "com") == 0)
933 ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32;
934 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
935 else if (strcmp (arg, "any") == 0)
936 ppc_cpu |= PPC_OPCODE_ANY;
944 md_parse_option (c, arg)
951 /* -u means that any undefined symbols should be treated as
952 external, which is the default for gas anyhow. */
957 /* Solaris as takes -le (presumably for little endian). For completeness
958 sake, recognize -be also. */
959 if (strcmp (arg, "e") == 0)
961 target_big_endian = 0;
962 set_target_endian = 1;
970 if (strcmp (arg, "e") == 0)
972 target_big_endian = 1;
973 set_target_endian = 1;
981 /* Recognize -K PIC. */
982 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
985 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
993 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
995 if (strcmp (arg, "64") == 0)
1000 as_fatal (_("%s unsupported"), "-a64");
1003 else if (strcmp (arg, "32") == 0)
1010 if (parse_cpu (arg))
1013 else if (strcmp (arg, "regnames") == 0)
1016 else if (strcmp (arg, "no-regnames") == 0)
1017 reg_names_p = FALSE;
1020 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1021 that require relocation. */
1022 else if (strcmp (arg, "relocatable") == 0)
1024 shlib = SHLIB_MRELOCATABLE;
1025 ppc_flags |= EF_PPC_RELOCATABLE;
1028 else if (strcmp (arg, "relocatable-lib") == 0)
1030 shlib = SHLIB_MRELOCATABLE;
1031 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1034 /* -memb, set embedded bit. */
1035 else if (strcmp (arg, "emb") == 0)
1036 ppc_flags |= EF_PPC_EMB;
1038 /* -mlittle/-mbig set the endianess. */
1039 else if (strcmp (arg, "little") == 0
1040 || strcmp (arg, "little-endian") == 0)
1042 target_big_endian = 0;
1043 set_target_endian = 1;
1046 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1048 target_big_endian = 1;
1049 set_target_endian = 1;
1052 else if (strcmp (arg, "solaris") == 0)
1055 ppc_comment_chars = ppc_solaris_comment_chars;
1058 else if (strcmp (arg, "no-solaris") == 0)
1061 ppc_comment_chars = ppc_eabi_comment_chars;
1066 as_bad (_("invalid switch -m%s"), arg);
1072 /* -V: SVR4 argument to print version ID. */
1074 print_version_id ();
1077 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1078 should be emitted or not. FIXME: Not implemented. */
1082 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1083 rather than .stabs.excl, which is ignored by the linker.
1084 FIXME: Not implemented. */
1100 md_show_usage (stream)
1103 fprintf (stream, _("\
1105 -a32 generate ELF32/XCOFF32\n\
1106 -a64 generate ELF64/XCOFF64\n\
1108 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1109 -mpwr generate code for POWER (RIOS1)\n\
1110 -m601 generate code for PowerPC 601\n\
1111 -mppc, -mppc32, -m603, -m604\n\
1112 generate code for PowerPC 603/604\n\
1113 -m403, -m405 generate code for PowerPC 403/405\n\
1114 -m440 generate code for PowerPC 440\n\
1115 -m7400, -m7410, -m7450, -m7455\n\
1116 generate code For PowerPC 7400/7410/7450/7455\n"));
1117 fprintf (stream, _("\
1118 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1119 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1120 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1121 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1122 -mpower4 generate code for Power4 architecture\n\
1123 -mpower5 generate code for Power5 architecture\n\
1124 -mpower6 generate code for Power6 architecture\n\
1125 -mcell generate code for Cell Broadband Engine architecture\n\
1126 -mcom generate code Power/PowerPC common instructions\n\
1127 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1128 fprintf (stream, _("\
1129 -maltivec generate code for AltiVec\n\
1130 -me300 generate code for PowerPC e300 family\n\
1131 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1132 -mspe generate code for Motorola SPE instructions\n\
1133 -mregnames Allow symbolic names for registers\n\
1134 -mno-regnames Do not allow symbolic names for registers\n"));
1136 fprintf (stream, _("\
1137 -mrelocatable support for GCC's -mrelocatble option\n\
1138 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1139 -memb set PPC_EMB bit in ELF flags\n\
1140 -mlittle, -mlittle-endian, -l, -le\n\
1141 generate code for a little endian machine\n\
1142 -mbig, -mbig-endian, -b, -be\n\
1143 generate code for a big endian machine\n\
1144 -msolaris generate code for Solaris\n\
1145 -mno-solaris do not generate code for Solaris\n\
1146 -V print assembler version number\n\
1147 -Qy, -Qn ignored\n"));
1151 /* Set ppc_cpu if it is not already set. */
1156 const char *default_os = TARGET_OS;
1157 const char *default_cpu = TARGET_CPU;
1159 if ((ppc_cpu & ~PPC_OPCODE_ANY) == 0)
1162 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1163 else if (strncmp (default_os, "aix", 3) == 0
1164 && default_os[3] >= '4' && default_os[3] <= '9')
1165 ppc_cpu |= PPC_OPCODE_COMMON | PPC_OPCODE_32;
1166 else if (strncmp (default_os, "aix3", 4) == 0)
1167 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1168 else if (strcmp (default_cpu, "rs6000") == 0)
1169 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1170 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1171 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
1173 as_fatal (_("Unknown default cpu = %s, os = %s"),
1174 default_cpu, default_os);
1178 /* Figure out the BFD architecture to use. This function and ppc_mach
1179 are called well before md_begin, when the output file is opened. */
1181 enum bfd_architecture
1184 const char *default_cpu = TARGET_CPU;
1187 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1188 return bfd_arch_powerpc;
1189 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1190 return bfd_arch_rs6000;
1191 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1193 if (strcmp (default_cpu, "rs6000") == 0)
1194 return bfd_arch_rs6000;
1195 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1196 return bfd_arch_powerpc;
1199 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1200 return bfd_arch_unknown;
1207 return bfd_mach_ppc64;
1208 else if (ppc_arch () == bfd_arch_rs6000)
1209 return bfd_mach_rs6k;
1211 return bfd_mach_ppc;
1215 ppc_target_format ()
1219 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1221 return "xcoff-powermac";
1224 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1226 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1232 return "elf32-powerpc-vxworks";
1234 return (target_big_endian
1235 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1236 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1241 /* Insert opcodes and macros into hash tables. Called at startup and
1245 ppc_setup_opcodes (void)
1247 register const struct powerpc_opcode *op;
1248 const struct powerpc_opcode *op_end;
1249 const struct powerpc_macro *macro;
1250 const struct powerpc_macro *macro_end;
1251 bfd_boolean bad_insn = FALSE;
1253 if (ppc_hash != NULL)
1254 hash_die (ppc_hash);
1255 if (ppc_macro_hash != NULL)
1256 hash_die (ppc_macro_hash);
1258 /* Insert the opcodes into a hash table. */
1259 ppc_hash = hash_new ();
1261 if (ENABLE_CHECKING)
1265 /* Check operand masks. Code here and in the disassembler assumes
1266 all the 1's in the mask are contiguous. */
1267 for (i = 0; i < num_powerpc_operands; ++i)
1269 unsigned long mask = powerpc_operands[i].bitm;
1270 unsigned long right_bit;
1273 right_bit = mask & -mask;
1275 right_bit = mask & -mask;
1276 if (mask != right_bit)
1278 as_bad (_("powerpc_operands[%d].bitm invalid"), i);
1281 for (j = i + 1; j < num_powerpc_operands; ++j)
1282 if (memcmp (&powerpc_operands[i], &powerpc_operands[j],
1283 sizeof (powerpc_operands[0])) == 0)
1285 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1292 op_end = powerpc_opcodes + powerpc_num_opcodes;
1293 for (op = powerpc_opcodes; op < op_end; op++)
1295 if (ENABLE_CHECKING)
1297 const unsigned char *o;
1298 unsigned long omask = op->mask;
1300 /* The mask had better not trim off opcode bits. */
1301 if ((op->opcode & omask) != op->opcode)
1303 as_bad (_("mask trims opcode bits for %s"),
1308 /* The operands must not overlap the opcode or each other. */
1309 for (o = op->operands; *o; ++o)
1310 if (*o >= num_powerpc_operands)
1312 as_bad (_("operand index error for %s"),
1318 const struct powerpc_operand *operand = &powerpc_operands[*o];
1319 if (operand->shift >= 0)
1321 unsigned long mask = operand->bitm << operand->shift;
1324 as_bad (_("operand %d overlap in %s"),
1325 (int) (o - op->operands), op->name);
1333 if ((op->flags & ppc_cpu & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) != 0
1334 && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
1335 || ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64))
1336 == (ppc_cpu & (PPC_OPCODE_32 | PPC_OPCODE_64)))
1337 || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0)
1338 /* Certain instructions (eg: extsw) do not exist in the
1339 32-bit BookE instruction set, but they do exist in the
1340 64-bit BookE instruction set, and other PPC instruction
1341 sets. Check to see if the opcode has the BOOKE64 flag set.
1342 If it does make sure that the target CPU is not the BookE32. */
1343 && ((op->flags & PPC_OPCODE_BOOKE64) == 0
1344 || (ppc_cpu & PPC_OPCODE_BOOKE64) == PPC_OPCODE_BOOKE64
1345 || (ppc_cpu & PPC_OPCODE_BOOKE) == 0)
1346 && ((op->flags & (PPC_OPCODE_POWER4 | PPC_OPCODE_NOPOWER4)) == 0
1347 || ((op->flags & PPC_OPCODE_POWER4)
1348 == (ppc_cpu & PPC_OPCODE_POWER4)))
1349 && ((op->flags & PPC_OPCODE_POWER5) == 0
1350 || ((op->flags & PPC_OPCODE_POWER5)
1351 == (ppc_cpu & PPC_OPCODE_POWER5)))
1352 && ((op->flags & PPC_OPCODE_POWER6) == 0
1353 || ((op->flags & PPC_OPCODE_POWER6)
1354 == (ppc_cpu & PPC_OPCODE_POWER6))))
1358 retval = hash_insert (ppc_hash, op->name, (PTR) op);
1361 /* Ignore Power duplicates for -m601. */
1362 if ((ppc_cpu & PPC_OPCODE_601) != 0
1363 && (op->flags & PPC_OPCODE_POWER) != 0)
1366 as_bad (_("duplicate instruction %s"),
1373 if ((ppc_cpu & PPC_OPCODE_ANY) != 0)
1374 for (op = powerpc_opcodes; op < op_end; op++)
1375 hash_insert (ppc_hash, op->name, (PTR) op);
1377 /* Insert the macros into a hash table. */
1378 ppc_macro_hash = hash_new ();
1380 macro_end = powerpc_macros + powerpc_num_macros;
1381 for (macro = powerpc_macros; macro < macro_end; macro++)
1383 if ((macro->flags & ppc_cpu) != 0)
1387 retval = hash_insert (ppc_macro_hash, macro->name, (PTR) macro);
1388 if (retval != (const char *) NULL)
1390 as_bad (_("duplicate macro %s"), macro->name);
1400 /* This function is called when the assembler starts up. It is called
1401 after the options have been parsed and the output file has been
1409 ppc_cie_data_alignment = ppc_obj64 ? -8 : -4;
1412 /* Set the ELF flags if desired. */
1413 if (ppc_flags && !msolaris)
1414 bfd_set_private_flags (stdoutput, ppc_flags);
1417 ppc_setup_opcodes ();
1419 /* Tell the main code what the endianness is if it is not overridden
1421 if (!set_target_endian)
1423 set_target_endian = 1;
1424 target_big_endian = PPC_BIG_ENDIAN;
1428 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1430 /* Create dummy symbols to serve as initial csects. This forces the
1431 text csects to precede the data csects. These symbols will not
1433 ppc_text_csects = symbol_make ("dummy\001");
1434 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1435 ppc_data_csects = symbol_make ("dummy\001");
1436 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1441 ppc_current_section = text_section;
1442 ppc_previous_section = 0;
1451 if (ppc_apuinfo_list == NULL)
1454 /* Ok, so write the section info out. We have this layout:
1458 0 8 length of "APUinfo\0"
1459 4 (n*4) number of APU's (4 bytes each)
1462 20 APU#1 first APU's info
1463 24 APU#2 second APU's info
1468 asection *seg = now_seg;
1469 subsegT subseg = now_subseg;
1470 asection *apuinfo_secp = (asection *) NULL;
1473 /* Create the .PPC.EMB.apuinfo section. */
1474 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1475 bfd_set_section_flags (stdoutput,
1477 SEC_HAS_CONTENTS | SEC_READONLY);
1480 md_number_to_chars (p, (valueT) 8, 4);
1483 md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4);
1486 md_number_to_chars (p, (valueT) 2, 4);
1489 strcpy (p, "APUinfo");
1491 for (i = 0; i < ppc_apuinfo_num; i++)
1494 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1497 frag_align (2, 0, 0);
1499 /* We probably can't restore the current segment, for there likely
1502 subseg_set (seg, subseg);
1507 /* Insert an operand value into an instruction. */
1509 static unsigned long
1510 ppc_insert_operand (insn, operand, val, file, line)
1512 const struct powerpc_operand *operand;
1517 long min, max, right;
1520 max = operand->bitm;
1524 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1526 if ((operand->flags & PPC_OPERAND_SIGNOPT) == 0)
1527 max = (max >> 1) & -right;
1528 min = ~max & -right;
1532 /* Some people write 32 bit hex constants with the sign
1533 extension done by hand. This shouldn't really be
1534 valid, but, to permit this code to assemble on a 64
1535 bit host, we sign extend the 32 bit value. */
1537 && (val & (offsetT) 0x80000000) != 0
1538 && (val & (offsetT) 0xffffffff) == val)
1546 if ((operand->flags & PPC_OPERAND_PLUS1) != 0)
1549 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1554 if ((min <= max && (test < (offsetT) min || test > (offsetT) max))
1555 || (test & (right - 1)) != 0)
1556 as_bad_value_out_of_range (_("operand"),
1557 test, (offsetT) min, (offsetT) max, file, line);
1559 if (operand->insert)
1564 insn = (*operand->insert) (insn, (long) val, ppc_cpu, &errmsg);
1565 if (errmsg != (const char *) NULL)
1566 as_bad_where (file, line, errmsg);
1569 insn |= ((long) val & operand->bitm) << operand->shift;
1576 /* Parse @got, etc. and return the desired relocation. */
1577 static bfd_reloc_code_real_type
1578 ppc_elf_suffix (str_p, exp_p)
1584 unsigned int length : 8;
1585 unsigned int valid32 : 1;
1586 unsigned int valid64 : 1;
1595 const struct map_bfd *ptr;
1597 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1598 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1599 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1601 static const struct map_bfd mapping[] = {
1602 MAP ("l", BFD_RELOC_LO16),
1603 MAP ("h", BFD_RELOC_HI16),
1604 MAP ("ha", BFD_RELOC_HI16_S),
1605 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1606 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1607 MAP ("got", BFD_RELOC_16_GOTOFF),
1608 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1609 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1610 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1611 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1612 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1613 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1614 MAP ("copy", BFD_RELOC_PPC_COPY),
1615 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1616 MAP ("sectoff", BFD_RELOC_16_BASEREL),
1617 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1618 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1619 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1620 MAP ("tls", BFD_RELOC_PPC_TLS),
1621 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD),
1622 MAP ("dtprel", BFD_RELOC_PPC_DTPREL),
1623 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO),
1624 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI),
1625 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA),
1626 MAP ("tprel", BFD_RELOC_PPC_TPREL),
1627 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO),
1628 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI),
1629 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA),
1630 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16),
1631 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO),
1632 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI),
1633 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA),
1634 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16),
1635 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO),
1636 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI),
1637 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA),
1638 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16),
1639 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO),
1640 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI),
1641 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA),
1642 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16),
1643 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO),
1644 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI),
1645 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA),
1646 MAP32 ("fixup", BFD_RELOC_CTOR),
1647 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL),
1648 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1649 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1650 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC),
1651 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL),
1652 MAP32 ("sdarel", BFD_RELOC_GPREL16),
1653 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1654 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1655 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1656 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1657 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1658 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1659 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1660 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1661 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1662 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1663 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1664 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1665 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1666 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1667 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1668 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1669 MAP32 ("xgot", BFD_RELOC_PPC_TOC16),
1670 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER),
1671 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S),
1672 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST),
1673 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1674 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC),
1675 MAP64 ("toc", BFD_RELOC_PPC_TOC16),
1676 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1677 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1678 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1679 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER),
1680 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1681 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1682 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1683 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
1684 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA),
1685 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST),
1686 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1687 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED }
1691 return BFD_RELOC_UNUSED;
1693 for (ch = *str, str2 = ident;
1694 (str2 < ident + sizeof (ident) - 1
1695 && (ISALNUM (ch) || ch == '@'));
1698 *str2++ = TOLOWER (ch);
1705 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1706 if (ch == ptr->string[0]
1707 && len == ptr->length
1708 && memcmp (ident, ptr->string, ptr->length) == 0
1709 && (ppc_obj64 ? ptr->valid64 : ptr->valid32))
1711 int reloc = ptr->reloc;
1714 if (exp_p->X_add_number != 0
1715 && (reloc == (int) BFD_RELOC_16_GOTOFF
1716 || reloc == (int) BFD_RELOC_LO16_GOTOFF
1717 || reloc == (int) BFD_RELOC_HI16_GOTOFF
1718 || reloc == (int) BFD_RELOC_HI16_S_GOTOFF))
1719 as_warn (_("identifier+constant@got means identifier@got+constant"));
1721 /* Now check for identifier@suffix+constant. */
1722 if (*str == '-' || *str == '+')
1724 char *orig_line = input_line_pointer;
1725 expressionS new_exp;
1727 input_line_pointer = str;
1728 expression (&new_exp);
1729 if (new_exp.X_op == O_constant)
1731 exp_p->X_add_number += new_exp.X_add_number;
1732 str = input_line_pointer;
1735 if (&input_line_pointer != str_p)
1736 input_line_pointer = orig_line;
1740 if (reloc == (int) BFD_RELOC_PPC64_TOC
1741 && exp_p->X_op == O_symbol
1742 && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0)
1744 /* Change the symbol so that the dummy .TOC. symbol can be
1745 omitted from the object file. */
1746 exp_p->X_add_symbol = &abs_symbol;
1749 return (bfd_reloc_code_real_type) reloc;
1752 return BFD_RELOC_UNUSED;
1755 /* Like normal .long/.short/.word, except support @got, etc.
1756 Clobbers input_line_pointer, checks end-of-line. */
1758 ppc_elf_cons (nbytes)
1759 register int nbytes; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */
1762 bfd_reloc_code_real_type reloc;
1764 if (is_it_end_of_statement ())
1766 demand_empty_rest_of_line ();
1773 if (exp.X_op == O_symbol
1774 && *input_line_pointer == '@'
1775 && (reloc = ppc_elf_suffix (&input_line_pointer,
1776 &exp)) != BFD_RELOC_UNUSED)
1778 reloc_howto_type *reloc_howto;
1781 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1782 size = bfd_get_reloc_size (reloc_howto);
1786 as_bad (_("%s relocations do not fit in %d bytes\n"),
1787 reloc_howto->name, nbytes);
1794 p = frag_more (nbytes);
1796 if (target_big_endian)
1797 offset = nbytes - size;
1798 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
1803 emit_expr (&exp, (unsigned int) nbytes);
1805 while (*input_line_pointer++ == ',');
1807 /* Put terminator back into stream. */
1808 input_line_pointer--;
1809 demand_empty_rest_of_line ();
1812 /* Solaris pseduo op to change to the .rodata section. */
1817 char *save_line = input_line_pointer;
1818 static char section[] = ".rodata\n";
1820 /* Just pretend this is .section .rodata */
1821 input_line_pointer = section;
1822 obj_elf_section (xxx);
1824 input_line_pointer = save_line;
1827 /* Pseudo op to make file scope bss items. */
1830 int xxx ATTRIBUTE_UNUSED;
1832 register char *name;
1836 register symbolS *symbolP;
1843 name = input_line_pointer;
1844 c = get_symbol_end ();
1846 /* just after name is now '\0'. */
1847 p = input_line_pointer;
1850 if (*input_line_pointer != ',')
1852 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1853 ignore_rest_of_line ();
1857 input_line_pointer++; /* skip ',' */
1858 if ((size = get_absolute_expression ()) < 0)
1860 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
1861 ignore_rest_of_line ();
1865 /* The third argument to .lcomm is the alignment. */
1866 if (*input_line_pointer != ',')
1870 ++input_line_pointer;
1871 align = get_absolute_expression ();
1874 as_warn (_("ignoring bad alignment"));
1880 symbolP = symbol_find_or_make (name);
1883 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
1885 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1886 S_GET_NAME (symbolP));
1887 ignore_rest_of_line ();
1891 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
1893 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1894 S_GET_NAME (symbolP),
1895 (long) S_GET_VALUE (symbolP),
1898 ignore_rest_of_line ();
1904 old_subsec = now_subseg;
1907 /* Convert to a power of 2 alignment. */
1908 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
1911 as_bad (_("Common alignment not a power of 2"));
1912 ignore_rest_of_line ();
1919 record_alignment (bss_section, align2);
1920 subseg_set (bss_section, 0);
1922 frag_align (align2, 0, 0);
1923 if (S_GET_SEGMENT (symbolP) == bss_section)
1924 symbol_get_frag (symbolP)->fr_symbol = 0;
1925 symbol_set_frag (symbolP, frag_now);
1926 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
1929 S_SET_SIZE (symbolP, size);
1930 S_SET_SEGMENT (symbolP, bss_section);
1931 subseg_set (old_sec, old_subsec);
1932 demand_empty_rest_of_line ();
1935 /* Validate any relocations emitted for -mrelocatable, possibly adding
1936 fixups for word relocations in writable segments, so we can adjust
1939 ppc_elf_validate_fix (fixp, seg)
1943 if (fixp->fx_done || fixp->fx_pcrel)
1952 case SHLIB_MRELOCATABLE:
1953 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
1954 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
1955 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
1956 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
1957 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
1958 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
1959 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
1960 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
1961 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
1962 && (seg->flags & SEC_LOAD) != 0
1963 && strcmp (segment_name (seg), ".got2") != 0
1964 && strcmp (segment_name (seg), ".dtors") != 0
1965 && strcmp (segment_name (seg), ".ctors") != 0
1966 && strcmp (segment_name (seg), ".fixup") != 0
1967 && strcmp (segment_name (seg), ".gcc_except_table") != 0
1968 && strcmp (segment_name (seg), ".eh_frame") != 0
1969 && strcmp (segment_name (seg), ".ex_shared") != 0)
1971 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
1972 || fixp->fx_r_type != BFD_RELOC_CTOR)
1974 as_bad_where (fixp->fx_file, fixp->fx_line,
1975 _("Relocation cannot be done when using -mrelocatable"));
1982 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1983 function descriptor sym if the corresponding code sym is used. */
1986 ppc_frob_file_before_adjust ()
1994 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
2001 name = S_GET_NAME (symp);
2005 if (! S_IS_WEAK (symp)
2006 || S_IS_DEFINED (symp))
2009 len = strlen (name) + 1;
2010 dotname = xmalloc (len + 1);
2012 memcpy (dotname + 1, name, len);
2013 dotsym = symbol_find_noref (dotname, 1);
2015 if (dotsym != NULL && (symbol_used_p (dotsym)
2016 || symbol_used_in_reloc_p (dotsym)))
2017 symbol_mark_used (symp);
2021 toc = bfd_get_section_by_name (stdoutput, ".toc");
2023 && bfd_section_size (stdoutput, toc) > 0x10000)
2024 as_warn (_("TOC section size exceeds 64k"));
2026 /* Don't emit .TOC. symbol. */
2027 symp = symbol_find (".TOC.");
2029 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
2031 #endif /* OBJ_ELF */
2036 * Summary of parse_toc_entry.
2038 * in: Input_line_pointer points to the '[' in one of:
2040 * [toc] [tocv] [toc32] [toc64]
2042 * Anything else is an error of one kind or another.
2045 * return value: success or failure
2046 * toc_kind: kind of toc reference
2047 * input_line_pointer:
2048 * success: first char after the ']'
2049 * failure: unchanged
2053 * [toc] - rv == success, toc_kind = default_toc
2054 * [tocv] - rv == success, toc_kind = data_in_toc
2055 * [toc32] - rv == success, toc_kind = must_be_32
2056 * [toc64] - rv == success, toc_kind = must_be_64
2060 enum toc_size_qualifier
2062 default_toc, /* The toc cell constructed should be the system default size */
2063 data_in_toc, /* This is a direct reference to a toc cell */
2064 must_be_32, /* The toc cell constructed must be 32 bits wide */
2065 must_be_64 /* The toc cell constructed must be 64 bits wide */
2069 parse_toc_entry (toc_kind)
2070 enum toc_size_qualifier *toc_kind;
2075 enum toc_size_qualifier t;
2077 /* Save the input_line_pointer. */
2078 start = input_line_pointer;
2080 /* Skip over the '[' , and whitespace. */
2081 ++input_line_pointer;
2084 /* Find the spelling of the operand. */
2085 toc_spec = input_line_pointer;
2086 c = get_symbol_end ();
2088 if (strcmp (toc_spec, "toc") == 0)
2092 else if (strcmp (toc_spec, "tocv") == 0)
2096 else if (strcmp (toc_spec, "toc32") == 0)
2100 else if (strcmp (toc_spec, "toc64") == 0)
2106 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
2107 *input_line_pointer = c;
2108 input_line_pointer = start;
2112 /* Now find the ']'. */
2113 *input_line_pointer = c;
2115 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2116 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
2120 as_bad (_("syntax error: expected `]', found `%c'"), c);
2121 input_line_pointer = start;
2132 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2134 ppc_apuinfo_section_add (apu, version)
2135 unsigned int apu, version;
2139 /* Check we don't already exist. */
2140 for (i = 0; i < ppc_apuinfo_num; i++)
2141 if (ppc_apuinfo_list[i] == APUID (apu, version))
2144 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2146 if (ppc_apuinfo_num_alloc == 0)
2148 ppc_apuinfo_num_alloc = 4;
2149 ppc_apuinfo_list = (unsigned long *)
2150 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2154 ppc_apuinfo_num_alloc += 4;
2155 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2156 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2159 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2165 /* We need to keep a list of fixups. We can't simply generate them as
2166 we go, because that would require us to first create the frag, and
2167 that would screw up references to ``.''. */
2173 bfd_reloc_code_real_type reloc;
2176 #define MAX_INSN_FIXUPS (5)
2178 /* This routine is called for each instruction to be assembled. */
2185 const struct powerpc_opcode *opcode;
2187 const unsigned char *opindex_ptr;
2191 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2197 bfd_reloc_code_real_type reloc;
2200 /* Get the opcode. */
2201 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2206 /* Look up the opcode in the hash table. */
2207 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2208 if (opcode == (const struct powerpc_opcode *) NULL)
2210 const struct powerpc_macro *macro;
2212 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2213 if (macro == (const struct powerpc_macro *) NULL)
2214 as_bad (_("Unrecognized opcode: `%s'"), str);
2216 ppc_macro (s, macro);
2221 insn = opcode->opcode;
2224 while (ISSPACE (*str))
2227 /* PowerPC operands are just expressions. The only real issue is
2228 that a few operand types are optional. All cases which might use
2229 an optional operand separate the operands only with commas (in some
2230 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2231 have optional operands). Most instructions with optional operands
2232 have only one. Those that have more than one optional operand can
2233 take either all their operands or none. So, before we start seriously
2234 parsing the operands, we check to see if we have optional operands,
2235 and if we do, we count the number of commas to see which operands
2236 have been omitted. */
2238 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2240 const struct powerpc_operand *operand;
2242 operand = &powerpc_operands[*opindex_ptr];
2243 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2245 unsigned int opcount;
2246 unsigned int num_operands_expected;
2249 /* There is an optional operand. Count the number of
2250 commas in the input line. */
2257 while ((s = strchr (s, ',')) != (char *) NULL)
2264 /* Compute the number of expected operands.
2265 Do not count fake operands. */
2266 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2267 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2268 ++ num_operands_expected;
2270 /* If there are fewer operands in the line then are called
2271 for by the instruction, we want to skip the optional
2273 if (opcount < num_operands_expected)
2280 /* Gather the operands. */
2284 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2286 const struct powerpc_operand *operand;
2292 if (next_opindex == 0)
2293 operand = &powerpc_operands[*opindex_ptr];
2296 operand = &powerpc_operands[next_opindex];
2301 /* If this is a fake operand, then we do not expect anything
2303 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2305 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2306 if (errmsg != (const char *) NULL)
2311 /* If this is an optional operand, and we are skipping it, just
2313 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2316 if (operand->insert)
2318 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2319 if (errmsg != (const char *) NULL)
2322 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2323 next_opindex = *opindex_ptr + 1;
2327 /* Gather the operand. */
2328 hold = input_line_pointer;
2329 input_line_pointer = str;
2332 if (*input_line_pointer == '[')
2334 /* We are expecting something like the second argument here:
2336 * lwz r4,[toc].GS.0.static_int(rtoc)
2337 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2338 * The argument following the `]' must be a symbol name, and the
2339 * register must be the toc register: 'rtoc' or '2'
2341 * The effect is to 0 as the displacement field
2342 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2343 * the appropriate variation) reloc against it based on the symbol.
2344 * The linker will build the toc, and insert the resolved toc offset.
2347 * o The size of the toc entry is currently assumed to be
2348 * 32 bits. This should not be assumed to be a hard coded
2350 * o In an effort to cope with a change from 32 to 64 bits,
2351 * there are also toc entries that are specified to be
2352 * either 32 or 64 bits:
2353 * lwz r4,[toc32].GS.0.static_int(rtoc)
2354 * lwz r4,[toc64].GS.0.static_int(rtoc)
2355 * These demand toc entries of the specified size, and the
2356 * instruction probably requires it.
2360 enum toc_size_qualifier toc_kind;
2361 bfd_reloc_code_real_type toc_reloc;
2363 /* Go parse off the [tocXX] part. */
2364 valid_toc = parse_toc_entry (&toc_kind);
2368 /* Note: message has already been issued.
2369 FIXME: what sort of recovery should we do?
2370 demand_rest_of_line (); return; ? */
2373 /* Now get the symbol following the ']'. */
2379 /* In this case, we may not have seen the symbol yet,
2380 since it is allowed to appear on a .extern or .globl
2381 or just be a label in the .data section. */
2382 toc_reloc = BFD_RELOC_PPC_TOC16;
2385 /* 1. The symbol must be defined and either in the toc
2386 section, or a global.
2387 2. The reloc generated must have the TOCDEFN flag set
2388 in upper bit mess of the reloc type.
2389 FIXME: It's a little confusing what the tocv
2390 qualifier can be used for. At the very least, I've
2391 seen three uses, only one of which I'm sure I can
2393 if (ex.X_op == O_symbol)
2395 assert (ex.X_add_symbol != NULL);
2396 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2399 as_bad (_("[tocv] symbol is not a toc symbol"));
2403 toc_reloc = BFD_RELOC_PPC_TOC16;
2406 /* FIXME: these next two specifically specify 32/64 bit
2407 toc entries. We don't support them today. Is this
2408 the right way to say that? */
2409 toc_reloc = BFD_RELOC_UNUSED;
2410 as_bad (_("Unimplemented toc32 expression modifier"));
2413 /* FIXME: see above. */
2414 toc_reloc = BFD_RELOC_UNUSED;
2415 as_bad (_("Unimplemented toc64 expression modifier"));
2419 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2425 /* We need to generate a fixup for this expression. */
2426 if (fc >= MAX_INSN_FIXUPS)
2427 as_fatal (_("too many fixups"));
2429 fixups[fc].reloc = toc_reloc;
2430 fixups[fc].exp = ex;
2431 fixups[fc].opindex = *opindex_ptr;
2434 /* Ok. We've set up the fixup for the instruction. Now make it
2435 look like the constant 0 was found here. */
2437 ex.X_op = O_constant;
2438 ex.X_add_number = 0;
2439 ex.X_add_symbol = NULL;
2440 ex.X_op_symbol = NULL;
2446 if (! register_name (&ex))
2448 if ((operand->flags & PPC_OPERAND_CR) != 0)
2455 str = input_line_pointer;
2456 input_line_pointer = hold;
2458 if (ex.X_op == O_illegal)
2459 as_bad (_("illegal operand"));
2460 else if (ex.X_op == O_absent)
2461 as_bad (_("missing operand"));
2462 else if (ex.X_op == O_register)
2464 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2467 else if (ex.X_op == O_constant)
2470 /* Allow @HA, @L, @H on constants. */
2471 char *orig_str = str;
2473 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2480 case BFD_RELOC_LO16:
2481 /* X_unsigned is the default, so if the user has done
2482 something which cleared it, we always produce a
2484 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2485 ex.X_add_number &= 0xffff;
2487 ex.X_add_number = SEX16 (ex.X_add_number);
2490 case BFD_RELOC_HI16:
2491 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2492 ex.X_add_number = PPC_HI (ex.X_add_number);
2494 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
2497 case BFD_RELOC_HI16_S:
2498 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2499 ex.X_add_number = PPC_HA (ex.X_add_number);
2501 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2504 case BFD_RELOC_PPC64_HIGHER:
2505 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2506 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2508 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2511 case BFD_RELOC_PPC64_HIGHER_S:
2512 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2513 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2515 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
2518 case BFD_RELOC_PPC64_HIGHEST:
2519 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2520 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2522 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2525 case BFD_RELOC_PPC64_HIGHEST_S:
2526 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2527 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2529 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2532 #endif /* OBJ_ELF */
2533 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2537 else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2539 /* Some TLS tweaks. */
2544 case BFD_RELOC_PPC_TLS:
2545 insn = ppc_insert_operand (insn, operand, ppc_obj64 ? 13 : 2,
2548 /* We'll only use the 32 (or 64) bit form of these relocations
2549 in constants. Instructions get the 16 bit form. */
2550 case BFD_RELOC_PPC_DTPREL:
2551 reloc = BFD_RELOC_PPC_DTPREL16;
2553 case BFD_RELOC_PPC_TPREL:
2554 reloc = BFD_RELOC_PPC_TPREL16;
2558 /* For the absolute forms of branches, convert the PC
2559 relative form back into the absolute. */
2560 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2564 case BFD_RELOC_PPC_B26:
2565 reloc = BFD_RELOC_PPC_BA26;
2567 case BFD_RELOC_PPC_B16:
2568 reloc = BFD_RELOC_PPC_BA16;
2570 case BFD_RELOC_PPC_B16_BRTAKEN:
2571 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2573 case BFD_RELOC_PPC_B16_BRNTAKEN:
2574 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2582 && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
2587 reloc = BFD_RELOC_PPC64_ADDR16_DS;
2589 case BFD_RELOC_LO16:
2590 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
2592 case BFD_RELOC_16_GOTOFF:
2593 reloc = BFD_RELOC_PPC64_GOT16_DS;
2595 case BFD_RELOC_LO16_GOTOFF:
2596 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
2598 case BFD_RELOC_LO16_PLTOFF:
2599 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
2601 case BFD_RELOC_16_BASEREL:
2602 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
2604 case BFD_RELOC_LO16_BASEREL:
2605 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
2607 case BFD_RELOC_PPC_TOC16:
2608 reloc = BFD_RELOC_PPC64_TOC16_DS;
2610 case BFD_RELOC_PPC64_TOC16_LO:
2611 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
2613 case BFD_RELOC_PPC64_PLTGOT16:
2614 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
2616 case BFD_RELOC_PPC64_PLTGOT16_LO:
2617 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
2619 case BFD_RELOC_PPC_DTPREL16:
2620 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
2622 case BFD_RELOC_PPC_DTPREL16_LO:
2623 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
2625 case BFD_RELOC_PPC_TPREL16:
2626 reloc = BFD_RELOC_PPC64_TPREL16_DS;
2628 case BFD_RELOC_PPC_TPREL16_LO:
2629 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
2631 case BFD_RELOC_PPC_GOT_DTPREL16:
2632 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2633 case BFD_RELOC_PPC_GOT_TPREL16:
2634 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2637 as_bad (_("unsupported relocation for DS offset field"));
2642 /* We need to generate a fixup for this expression. */
2643 if (fc >= MAX_INSN_FIXUPS)
2644 as_fatal (_("too many fixups"));
2645 fixups[fc].exp = ex;
2646 fixups[fc].opindex = 0;
2647 fixups[fc].reloc = reloc;
2650 #endif /* OBJ_ELF */
2654 /* We need to generate a fixup for this expression. */
2655 if (fc >= MAX_INSN_FIXUPS)
2656 as_fatal (_("too many fixups"));
2657 fixups[fc].exp = ex;
2658 fixups[fc].opindex = *opindex_ptr;
2659 fixups[fc].reloc = BFD_RELOC_UNUSED;
2668 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
2676 /* The call to expression should have advanced str past any
2679 && (endc != ',' || *str != '\0'))
2681 as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc);
2689 while (ISSPACE (*str))
2693 as_bad (_("junk at end of line: `%s'"), str);
2696 /* Do we need/want a APUinfo section? */
2697 if (ppc_cpu & (PPC_OPCODE_SPE
2698 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS
2699 | PPC_OPCODE_BRLOCK | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
2700 | PPC_OPCODE_RFMCI))
2702 /* These are all version "1". */
2703 if (opcode->flags & PPC_OPCODE_SPE)
2704 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
2705 if (opcode->flags & PPC_OPCODE_ISEL)
2706 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
2707 if (opcode->flags & PPC_OPCODE_EFS)
2708 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
2709 if (opcode->flags & PPC_OPCODE_BRLOCK)
2710 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
2711 if (opcode->flags & PPC_OPCODE_PMR)
2712 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
2713 if (opcode->flags & PPC_OPCODE_CACHELCK)
2714 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
2715 if (opcode->flags & PPC_OPCODE_RFMCI)
2716 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
2720 /* Write out the instruction. */
2722 addr_mod = frag_now_fix () & 3;
2723 if (frag_now->has_code && frag_now->insn_addr != addr_mod)
2724 as_bad (_("instruction address is not a multiple of 4"));
2725 frag_now->insn_addr = addr_mod;
2726 frag_now->has_code = 1;
2727 md_number_to_chars (f, insn, 4);
2730 dwarf2_emit_insn (4);
2733 /* Create any fixups. At this point we do not use a
2734 bfd_reloc_code_real_type, but instead just use the
2735 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2736 handle fixups for any operand type, although that is admittedly
2737 not a very exciting feature. We pick a BFD reloc type in
2739 for (i = 0; i < fc; i++)
2741 const struct powerpc_operand *operand;
2743 operand = &powerpc_operands[fixups[i].opindex];
2744 if (fixups[i].reloc != BFD_RELOC_UNUSED)
2746 reloc_howto_type *reloc_howto;
2751 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
2755 size = bfd_get_reloc_size (reloc_howto);
2756 offset = target_big_endian ? (4 - size) : 0;
2758 if (size < 1 || size > 4)
2761 fixP = fix_new_exp (frag_now,
2762 f - frag_now->fr_literal + offset,
2765 reloc_howto->pc_relative,
2768 /* Turn off complaints that the addend is too large for things like
2770 switch (fixups[i].reloc)
2772 case BFD_RELOC_16_GOTOFF:
2773 case BFD_RELOC_PPC_TOC16:
2774 case BFD_RELOC_LO16:
2775 case BFD_RELOC_HI16:
2776 case BFD_RELOC_HI16_S:
2778 case BFD_RELOC_PPC64_HIGHER:
2779 case BFD_RELOC_PPC64_HIGHER_S:
2780 case BFD_RELOC_PPC64_HIGHEST:
2781 case BFD_RELOC_PPC64_HIGHEST_S:
2783 fixP->fx_no_overflow = 1;
2790 fix_new_exp (frag_now,
2791 f - frag_now->fr_literal,
2794 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
2795 ((bfd_reloc_code_real_type)
2796 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
2800 /* Handle a macro. Gather all the operands, transform them as
2801 described by the macro, and call md_assemble recursively. All the
2802 operands are separated by commas; we don't accept parentheses
2803 around operands here. */
2806 ppc_macro (str, macro)
2808 const struct powerpc_macro *macro;
2819 /* Gather the users operands into the operands array. */
2824 if (count >= sizeof operands / sizeof operands[0])
2826 operands[count++] = s;
2827 s = strchr (s, ',');
2828 if (s == (char *) NULL)
2833 if (count != macro->operands)
2835 as_bad (_("wrong number of operands"));
2839 /* Work out how large the string must be (the size is unbounded
2840 because it includes user input). */
2842 format = macro->format;
2843 while (*format != '\0')
2852 arg = strtol (format + 1, &send, 10);
2853 know (send != format && arg < count);
2854 len += strlen (operands[arg]);
2859 /* Put the string together. */
2860 complete = s = (char *) alloca (len + 1);
2861 format = macro->format;
2862 while (*format != '\0')
2868 arg = strtol (format + 1, &send, 10);
2869 strcpy (s, operands[arg]);
2876 /* Assemble the constructed instruction. */
2877 md_assemble (complete);
2881 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2884 ppc_section_letter (letter, ptr_msg)
2891 *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2896 ppc_section_word (str, len)
2900 if (len == 7 && strncmp (str, "exclude", 7) == 0)
2907 ppc_section_type (str, len)
2911 if (len == 7 && strncmp (str, "ordered", 7) == 0)
2918 ppc_section_flags (flags, attr, type)
2923 if (type == SHT_ORDERED)
2924 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
2926 if (attr & SHF_EXCLUDE)
2927 flags |= SEC_EXCLUDE;
2931 #endif /* OBJ_ELF */
2934 /* Pseudo-op handling. */
2936 /* The .byte pseudo-op. This is similar to the normal .byte
2937 pseudo-op, but it can also take a single ASCII string. */
2941 int ignore ATTRIBUTE_UNUSED;
2943 if (*input_line_pointer != '\"')
2949 /* Gather characters. A real double quote is doubled. Unusual
2950 characters are not permitted. */
2951 ++input_line_pointer;
2956 c = *input_line_pointer++;
2960 if (*input_line_pointer != '\"')
2962 ++input_line_pointer;
2965 FRAG_APPEND_1_CHAR (c);
2968 demand_empty_rest_of_line ();
2973 /* XCOFF specific pseudo-op handling. */
2975 /* This is set if we are creating a .stabx symbol, since we don't want
2976 to handle symbol suffixes for such symbols. */
2977 static bfd_boolean ppc_stab_symbol;
2979 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2980 symbols in the .bss segment as though they were local common
2981 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
2982 aligns .comm and .lcomm to 4 bytes. */
2988 asection *current_seg = now_seg;
2989 subsegT current_subseg = now_subseg;
2995 symbolS *lcomm_sym = NULL;
2999 name = input_line_pointer;
3000 endc = get_symbol_end ();
3001 end_name = input_line_pointer;
3004 if (*input_line_pointer != ',')
3006 as_bad (_("missing size"));
3007 ignore_rest_of_line ();
3010 ++input_line_pointer;
3012 size = get_absolute_expression ();
3015 as_bad (_("negative size"));
3016 ignore_rest_of_line ();
3022 /* The third argument to .comm is the alignment. */
3023 if (*input_line_pointer != ',')
3027 ++input_line_pointer;
3028 align = get_absolute_expression ();
3031 as_warn (_("ignoring bad alignment"));
3046 /* The third argument to .lcomm appears to be the real local
3047 common symbol to create. References to the symbol named in
3048 the first argument are turned into references to the third
3050 if (*input_line_pointer != ',')
3052 as_bad (_("missing real symbol name"));
3053 ignore_rest_of_line ();
3056 ++input_line_pointer;
3058 lcomm_name = input_line_pointer;
3059 lcomm_endc = get_symbol_end ();
3061 lcomm_sym = symbol_find_or_make (lcomm_name);
3063 *input_line_pointer = lcomm_endc;
3067 sym = symbol_find_or_make (name);
3070 if (S_IS_DEFINED (sym)
3071 || S_GET_VALUE (sym) != 0)
3073 as_bad (_("attempt to redefine symbol"));
3074 ignore_rest_of_line ();
3078 record_alignment (bss_section, align);
3081 || ! S_IS_DEFINED (lcomm_sym))
3090 S_SET_EXTERNAL (sym);
3094 symbol_get_tc (lcomm_sym)->output = 1;
3095 def_sym = lcomm_sym;
3099 subseg_set (bss_section, 1);
3100 frag_align (align, 0, 0);
3102 symbol_set_frag (def_sym, frag_now);
3103 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
3104 def_size, (char *) NULL);
3106 S_SET_SEGMENT (def_sym, bss_section);
3107 symbol_get_tc (def_sym)->align = align;
3111 /* Align the size of lcomm_sym. */
3112 symbol_get_frag (lcomm_sym)->fr_offset =
3113 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
3114 &~ ((1 << align) - 1));
3115 if (align > symbol_get_tc (lcomm_sym)->align)
3116 symbol_get_tc (lcomm_sym)->align = align;
3121 /* Make sym an offset from lcomm_sym. */
3122 S_SET_SEGMENT (sym, bss_section);
3123 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
3124 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
3125 symbol_get_frag (lcomm_sym)->fr_offset += size;
3128 subseg_set (current_seg, current_subseg);
3130 demand_empty_rest_of_line ();
3133 /* The .csect pseudo-op. This switches us into a different
3134 subsegment. The first argument is a symbol whose value is the
3135 start of the .csect. In COFF, csect symbols get special aux
3136 entries defined by the x_csect field of union internal_auxent. The
3137 optional second argument is the alignment (the default is 2). */
3141 int ignore ATTRIBUTE_UNUSED;
3148 name = input_line_pointer;
3149 endc = get_symbol_end ();
3151 sym = symbol_find_or_make (name);
3153 *input_line_pointer = endc;
3155 if (S_GET_NAME (sym)[0] == '\0')
3157 /* An unnamed csect is assumed to be [PR]. */
3158 symbol_get_tc (sym)->class = XMC_PR;
3162 if (*input_line_pointer == ',')
3164 ++input_line_pointer;
3165 align = get_absolute_expression ();
3168 ppc_change_csect (sym, align);
3170 demand_empty_rest_of_line ();
3173 /* Change to a different csect. */
3176 ppc_change_csect (sym, align)
3180 if (S_IS_DEFINED (sym))
3181 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3191 /* This is a new csect. We need to look at the symbol class to
3192 figure out whether it should go in the text section or the
3196 switch (symbol_get_tc (sym)->class)
3206 S_SET_SEGMENT (sym, text_section);
3207 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3208 ++ppc_text_subsegment;
3209 list_ptr = &ppc_text_csects;
3219 if (ppc_toc_csect != NULL
3220 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3221 == ppc_data_subsegment))
3223 S_SET_SEGMENT (sym, data_section);
3224 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3225 ++ppc_data_subsegment;
3226 list_ptr = &ppc_data_csects;
3232 /* We set the obstack chunk size to a small value before
3233 changing subsegments, so that we don't use a lot of memory
3234 space for what may be a small section. */
3235 hold_chunksize = chunksize;
3238 sec = subseg_new (segment_name (S_GET_SEGMENT (sym)),
3239 symbol_get_tc (sym)->subseg);
3241 chunksize = hold_chunksize;
3244 ppc_after_toc_frag = frag_now;
3246 record_alignment (sec, align);
3248 frag_align_code (align, 0);
3250 frag_align (align, 0, 0);
3252 symbol_set_frag (sym, frag_now);
3253 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3255 symbol_get_tc (sym)->align = align;
3256 symbol_get_tc (sym)->output = 1;
3257 symbol_get_tc (sym)->within = sym;
3259 for (list = *list_ptr;
3260 symbol_get_tc (list)->next != (symbolS *) NULL;
3261 list = symbol_get_tc (list)->next)
3263 symbol_get_tc (list)->next = sym;
3265 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3266 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3270 ppc_current_csect = sym;
3273 /* This function handles the .text and .data pseudo-ops. These
3274 pseudo-ops aren't really used by XCOFF; we implement them for the
3275 convenience of people who aren't used to XCOFF. */
3286 else if (type == 'd')
3291 sym = symbol_find_or_make (name);
3293 ppc_change_csect (sym, 2);
3295 demand_empty_rest_of_line ();
3298 /* This function handles the .section pseudo-op. This is mostly to
3299 give an error, since XCOFF only supports .text, .data and .bss, but
3300 we do permit the user to name the text or data section. */
3303 ppc_named_section (ignore)
3304 int ignore ATTRIBUTE_UNUSED;
3307 const char *real_name;
3311 user_name = input_line_pointer;
3312 c = get_symbol_end ();
3314 if (strcmp (user_name, ".text") == 0)
3315 real_name = ".text[PR]";
3316 else if (strcmp (user_name, ".data") == 0)
3317 real_name = ".data[RW]";
3320 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3321 *input_line_pointer = c;
3322 ignore_rest_of_line ();
3326 *input_line_pointer = c;
3328 sym = symbol_find_or_make (real_name);
3330 ppc_change_csect (sym, 2);
3332 demand_empty_rest_of_line ();
3335 /* The .extern pseudo-op. We create an undefined symbol. */
3339 int ignore ATTRIBUTE_UNUSED;
3344 name = input_line_pointer;
3345 endc = get_symbol_end ();
3347 (void) symbol_find_or_make (name);
3349 *input_line_pointer = endc;
3351 demand_empty_rest_of_line ();
3354 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3358 int ignore ATTRIBUTE_UNUSED;
3364 name = input_line_pointer;
3365 endc = get_symbol_end ();
3367 sym = symbol_find_or_make (name);
3369 *input_line_pointer = endc;
3371 symbol_get_tc (sym)->output = 1;
3373 demand_empty_rest_of_line ();
3376 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3377 although I don't know why it bothers. */
3381 int ignore ATTRIBUTE_UNUSED;
3388 name = input_line_pointer;
3389 endc = get_symbol_end ();
3391 sym = symbol_find_or_make (name);
3393 *input_line_pointer = endc;
3395 if (*input_line_pointer != ',')
3397 as_bad (_("missing rename string"));
3398 ignore_rest_of_line ();
3401 ++input_line_pointer;
3403 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
3405 demand_empty_rest_of_line ();
3408 /* The .stabx pseudo-op. This is similar to a normal .stabs
3409 pseudo-op, but slightly different. A sample is
3410 .stabx "main:F-1",.main,142,0
3411 The first argument is the symbol name to create. The second is the
3412 value, and the third is the storage class. The fourth seems to be
3413 always zero, and I am assuming it is the type. */
3417 int ignore ATTRIBUTE_UNUSED;
3424 name = demand_copy_C_string (&len);
3426 if (*input_line_pointer != ',')
3428 as_bad (_("missing value"));
3431 ++input_line_pointer;
3433 ppc_stab_symbol = TRUE;
3434 sym = symbol_make (name);
3435 ppc_stab_symbol = FALSE;
3437 symbol_get_tc (sym)->real_name = name;
3439 (void) expression (&exp);
3446 as_bad (_("illegal .stabx expression; zero assumed"));
3447 exp.X_add_number = 0;
3450 S_SET_VALUE (sym, (valueT) exp.X_add_number);
3451 symbol_set_frag (sym, &zero_address_frag);
3455 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
3456 symbol_set_value_expression (sym, &exp);
3460 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
3461 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
3466 /* The value is some complex expression. This will probably
3467 fail at some later point, but this is probably the right
3468 thing to do here. */
3469 symbol_set_value_expression (sym, &exp);
3473 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3474 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3476 if (*input_line_pointer != ',')
3478 as_bad (_("missing class"));
3481 ++input_line_pointer;
3483 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
3485 if (*input_line_pointer != ',')
3487 as_bad (_("missing type"));
3490 ++input_line_pointer;
3492 S_SET_DATA_TYPE (sym, get_absolute_expression ());
3494 symbol_get_tc (sym)->output = 1;
3496 if (S_GET_STORAGE_CLASS (sym) == C_STSYM) {
3498 symbol_get_tc (sym)->within = ppc_current_block;
3503 .stabx "z",arrays_,133,0
3506 .comm arrays_,13768,3
3508 resolve_symbol_value will copy the exp's "within" into sym's when the
3509 offset is 0. Since this seems to be corner case problem,
3510 only do the correction for storage class C_STSYM. A better solution
3511 would be to have the tc field updated in ppc_symbol_new_hook. */
3513 if (exp.X_op == O_symbol)
3515 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
3519 if (exp.X_op != O_symbol
3520 || ! S_IS_EXTERNAL (exp.X_add_symbol)
3521 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
3522 ppc_frob_label (sym);
3525 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3526 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
3527 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
3528 symbol_get_tc (ppc_current_csect)->within = sym;
3531 demand_empty_rest_of_line ();
3534 /* The .function pseudo-op. This takes several arguments. The first
3535 argument seems to be the external name of the symbol. The second
3536 argument seems to be the label for the start of the function. gcc
3537 uses the same name for both. I have no idea what the third and
3538 fourth arguments are meant to be. The optional fifth argument is
3539 an expression for the size of the function. In COFF this symbol
3540 gets an aux entry like that used for a csect. */
3543 ppc_function (ignore)
3544 int ignore ATTRIBUTE_UNUSED;
3552 name = input_line_pointer;
3553 endc = get_symbol_end ();
3555 /* Ignore any [PR] suffix. */
3556 name = ppc_canonicalize_symbol_name (name);
3557 s = strchr (name, '[');
3558 if (s != (char *) NULL
3559 && strcmp (s + 1, "PR]") == 0)
3562 ext_sym = symbol_find_or_make (name);
3564 *input_line_pointer = endc;
3566 if (*input_line_pointer != ',')
3568 as_bad (_("missing symbol name"));
3569 ignore_rest_of_line ();
3572 ++input_line_pointer;
3574 name = input_line_pointer;
3575 endc = get_symbol_end ();
3577 lab_sym = symbol_find_or_make (name);
3579 *input_line_pointer = endc;
3581 if (ext_sym != lab_sym)
3585 exp.X_op = O_symbol;
3586 exp.X_add_symbol = lab_sym;
3587 exp.X_op_symbol = NULL;
3588 exp.X_add_number = 0;
3590 symbol_set_value_expression (ext_sym, &exp);
3593 if (symbol_get_tc (ext_sym)->class == -1)
3594 symbol_get_tc (ext_sym)->class = XMC_PR;
3595 symbol_get_tc (ext_sym)->output = 1;
3597 if (*input_line_pointer == ',')
3601 /* Ignore the third argument. */
3602 ++input_line_pointer;
3603 expression (&ignore);
3604 if (*input_line_pointer == ',')
3606 /* Ignore the fourth argument. */
3607 ++input_line_pointer;
3608 expression (&ignore);
3609 if (*input_line_pointer == ',')
3611 /* The fifth argument is the function size. */
3612 ++input_line_pointer;
3613 symbol_get_tc (ext_sym)->size = symbol_new ("L0\001",
3616 &zero_address_frag);
3617 pseudo_set (symbol_get_tc (ext_sym)->size);
3622 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
3623 SF_SET_FUNCTION (ext_sym);
3624 SF_SET_PROCESS (ext_sym);
3625 coff_add_linesym (ext_sym);
3627 demand_empty_rest_of_line ();
3630 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3631 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3632 with the correct line number */
3634 static symbolS *saved_bi_sym = 0;
3638 int ignore ATTRIBUTE_UNUSED;
3642 sym = symbol_make (".bf");
3643 S_SET_SEGMENT (sym, text_section);
3644 symbol_set_frag (sym, frag_now);
3645 S_SET_VALUE (sym, frag_now_fix ());
3646 S_SET_STORAGE_CLASS (sym, C_FCN);
3648 coff_line_base = get_absolute_expression ();
3650 S_SET_NUMBER_AUXILIARY (sym, 1);
3651 SA_SET_SYM_LNNO (sym, coff_line_base);
3653 /* Line number for bi. */
3656 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
3661 symbol_get_tc (sym)->output = 1;
3663 ppc_frob_label (sym);
3665 demand_empty_rest_of_line ();
3668 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3669 ".ef", except that the line number is absolute, not relative to the
3670 most recent ".bf" symbol. */
3674 int ignore ATTRIBUTE_UNUSED;
3678 sym = symbol_make (".ef");
3679 S_SET_SEGMENT (sym, text_section);
3680 symbol_set_frag (sym, frag_now);
3681 S_SET_VALUE (sym, frag_now_fix ());
3682 S_SET_STORAGE_CLASS (sym, C_FCN);
3683 S_SET_NUMBER_AUXILIARY (sym, 1);
3684 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3685 symbol_get_tc (sym)->output = 1;
3687 ppc_frob_label (sym);
3689 demand_empty_rest_of_line ();
3692 /* The .bi and .ei pseudo-ops. These take a string argument and
3693 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3694 the symbol list. The value of .bi will be know when the next .bf
3701 static symbolS *last_biei;
3708 name = demand_copy_C_string (&len);
3710 /* The value of these symbols is actually file offset. Here we set
3711 the value to the index into the line number entries. In
3712 ppc_frob_symbols we set the fix_line field, which will cause BFD
3713 to do the right thing. */
3715 sym = symbol_make (name);
3716 /* obj-coff.c currently only handles line numbers correctly in the
3718 S_SET_SEGMENT (sym, text_section);
3719 S_SET_VALUE (sym, coff_n_line_nos);
3720 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3722 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
3723 symbol_get_tc (sym)->output = 1;
3731 for (look = last_biei ? last_biei : symbol_rootP;
3732 (look != (symbolS *) NULL
3733 && (S_GET_STORAGE_CLASS (look) == C_FILE
3734 || S_GET_STORAGE_CLASS (look) == C_BINCL
3735 || S_GET_STORAGE_CLASS (look) == C_EINCL));
3736 look = symbol_next (look))
3738 if (look != (symbolS *) NULL)
3740 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3741 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
3745 demand_empty_rest_of_line ();
3748 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3749 There is one argument, which is a csect symbol. The value of the
3750 .bs symbol is the index of this csect symbol. */
3754 int ignore ATTRIBUTE_UNUSED;
3761 if (ppc_current_block != NULL)
3762 as_bad (_("nested .bs blocks"));
3764 name = input_line_pointer;
3765 endc = get_symbol_end ();
3767 csect = symbol_find_or_make (name);
3769 *input_line_pointer = endc;
3771 sym = symbol_make (".bs");
3772 S_SET_SEGMENT (sym, now_seg);
3773 S_SET_STORAGE_CLASS (sym, C_BSTAT);
3774 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3775 symbol_get_tc (sym)->output = 1;
3777 symbol_get_tc (sym)->within = csect;
3779 ppc_frob_label (sym);
3781 ppc_current_block = sym;
3783 demand_empty_rest_of_line ();
3786 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3790 int ignore ATTRIBUTE_UNUSED;
3794 if (ppc_current_block == NULL)
3795 as_bad (_(".es without preceding .bs"));
3797 sym = symbol_make (".es");
3798 S_SET_SEGMENT (sym, now_seg);
3799 S_SET_STORAGE_CLASS (sym, C_ESTAT);
3800 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3801 symbol_get_tc (sym)->output = 1;
3803 ppc_frob_label (sym);
3805 ppc_current_block = NULL;
3807 demand_empty_rest_of_line ();
3810 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3815 int ignore ATTRIBUTE_UNUSED;
3819 sym = symbol_make (".bb");
3820 S_SET_SEGMENT (sym, text_section);
3821 symbol_set_frag (sym, frag_now);
3822 S_SET_VALUE (sym, frag_now_fix ());
3823 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3825 S_SET_NUMBER_AUXILIARY (sym, 1);
3826 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3828 symbol_get_tc (sym)->output = 1;
3830 SF_SET_PROCESS (sym);
3832 ppc_frob_label (sym);
3834 demand_empty_rest_of_line ();
3837 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3842 int ignore ATTRIBUTE_UNUSED;
3846 sym = symbol_make (".eb");
3847 S_SET_SEGMENT (sym, text_section);
3848 symbol_set_frag (sym, frag_now);
3849 S_SET_VALUE (sym, frag_now_fix ());
3850 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3851 S_SET_NUMBER_AUXILIARY (sym, 1);
3852 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3853 symbol_get_tc (sym)->output = 1;
3855 SF_SET_PROCESS (sym);
3857 ppc_frob_label (sym);
3859 demand_empty_rest_of_line ();
3862 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3867 int ignore ATTRIBUTE_UNUSED;
3873 name = demand_copy_C_string (&len);
3874 sym = symbol_make (name);
3875 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3876 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3877 S_SET_STORAGE_CLASS (sym, C_BCOMM);
3878 S_SET_VALUE (sym, 0);
3879 symbol_get_tc (sym)->output = 1;
3881 ppc_frob_label (sym);
3883 demand_empty_rest_of_line ();
3886 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3890 int ignore ATTRIBUTE_UNUSED;
3894 sym = symbol_make (".ec");
3895 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3896 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3897 S_SET_STORAGE_CLASS (sym, C_ECOMM);
3898 S_SET_VALUE (sym, 0);
3899 symbol_get_tc (sym)->output = 1;
3901 ppc_frob_label (sym);
3903 demand_empty_rest_of_line ();
3906 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3910 int ignore ATTRIBUTE_UNUSED;
3912 if (ppc_toc_csect != (symbolS *) NULL)
3913 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
3920 subseg = ppc_data_subsegment;
3921 ++ppc_data_subsegment;
3923 subseg_new (segment_name (data_section), subseg);
3924 ppc_toc_frag = frag_now;
3926 sym = symbol_find_or_make ("TOC[TC0]");
3927 symbol_set_frag (sym, frag_now);
3928 S_SET_SEGMENT (sym, data_section);
3929 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3930 symbol_get_tc (sym)->subseg = subseg;
3931 symbol_get_tc (sym)->output = 1;
3932 symbol_get_tc (sym)->within = sym;
3934 ppc_toc_csect = sym;
3936 for (list = ppc_data_csects;
3937 symbol_get_tc (list)->next != (symbolS *) NULL;
3938 list = symbol_get_tc (list)->next)
3940 symbol_get_tc (list)->next = sym;
3942 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3943 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3947 ppc_current_csect = ppc_toc_csect;
3949 demand_empty_rest_of_line ();
3952 /* The AIX assembler automatically aligns the operands of a .long or
3953 .short pseudo-op, and we want to be compatible. */
3956 ppc_xcoff_cons (log_size)
3959 frag_align (log_size, 0, 0);
3960 record_alignment (now_seg, log_size);
3961 cons (1 << log_size);
3966 int dummy ATTRIBUTE_UNUSED;
3971 (void) expression (&exp);
3973 if (exp.X_op != O_constant)
3975 as_bad (_("non-constant byte count"));
3979 byte_count = exp.X_add_number;
3981 if (*input_line_pointer != ',')
3983 as_bad (_("missing value"));
3987 ++input_line_pointer;
3991 #endif /* OBJ_XCOFF */
3992 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3994 /* The .tc pseudo-op. This is used when generating either XCOFF or
3995 ELF. This takes two or more arguments.
3997 When generating XCOFF output, the first argument is the name to
3998 give to this location in the toc; this will be a symbol with class
3999 TC. The rest of the arguments are N-byte values to actually put at
4000 this location in the TOC; often there is just one more argument, a
4001 relocatable symbol reference. The size of the value to store
4002 depends on target word size. A 32-bit target uses 4-byte values, a
4003 64-bit target uses 8-byte values.
4005 When not generating XCOFF output, the arguments are the same, but
4006 the first argument is simply ignored. */
4010 int ignore ATTRIBUTE_UNUSED;
4014 /* Define the TOC symbol name. */
4020 if (ppc_toc_csect == (symbolS *) NULL
4021 || ppc_toc_csect != ppc_current_csect)
4023 as_bad (_(".tc not in .toc section"));
4024 ignore_rest_of_line ();
4028 name = input_line_pointer;
4029 endc = get_symbol_end ();
4031 sym = symbol_find_or_make (name);
4033 *input_line_pointer = endc;
4035 if (S_IS_DEFINED (sym))
4039 label = symbol_get_tc (ppc_current_csect)->within;
4040 if (symbol_get_tc (label)->class != XMC_TC0)
4042 as_bad (_(".tc with no label"));
4043 ignore_rest_of_line ();
4047 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
4048 symbol_set_frag (label, symbol_get_frag (sym));
4049 S_SET_VALUE (label, S_GET_VALUE (sym));
4051 while (! is_end_of_line[(unsigned char) *input_line_pointer])
4052 ++input_line_pointer;
4057 S_SET_SEGMENT (sym, now_seg);
4058 symbol_set_frag (sym, frag_now);
4059 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4060 symbol_get_tc (sym)->class = XMC_TC;
4061 symbol_get_tc (sym)->output = 1;
4063 ppc_frob_label (sym);
4066 #endif /* OBJ_XCOFF */
4070 /* Skip the TOC symbol name. */
4071 while (is_part_of_name (*input_line_pointer)
4072 || *input_line_pointer == '['
4073 || *input_line_pointer == ']'
4074 || *input_line_pointer == '{'
4075 || *input_line_pointer == '}')
4076 ++input_line_pointer;
4078 /* Align to a four/eight byte boundary. */
4079 align = ppc_obj64 ? 3 : 2;
4080 frag_align (align, 0, 0);
4081 record_alignment (now_seg, align);
4082 #endif /* OBJ_ELF */
4084 if (*input_line_pointer != ',')
4085 demand_empty_rest_of_line ();
4088 ++input_line_pointer;
4089 cons (ppc_obj64 ? 8 : 4);
4093 /* Pseudo-op .machine. */
4096 ppc_machine (ignore)
4097 int ignore ATTRIBUTE_UNUSED;
4100 #define MAX_HISTORY 100
4101 static unsigned long *cpu_history;
4102 static int curr_hist;
4106 if (*input_line_pointer == '"')
4109 cpu_string = demand_copy_C_string (&len);
4114 cpu_string = input_line_pointer;
4115 c = get_symbol_end ();
4116 cpu_string = xstrdup (cpu_string);
4117 *input_line_pointer = c;
4120 if (cpu_string != NULL)
4122 unsigned long old_cpu = ppc_cpu;
4125 for (p = cpu_string; *p != 0; p++)
4128 if (strcmp (cpu_string, "push") == 0)
4130 if (cpu_history == NULL)
4131 cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
4133 if (curr_hist >= MAX_HISTORY)
4134 as_bad (_(".machine stack overflow"));
4136 cpu_history[curr_hist++] = ppc_cpu;
4138 else if (strcmp (cpu_string, "pop") == 0)
4141 as_bad (_(".machine stack underflow"));
4143 ppc_cpu = cpu_history[--curr_hist];
4145 else if (parse_cpu (cpu_string))
4148 as_bad (_("invalid machine `%s'"), cpu_string);
4150 if (ppc_cpu != old_cpu)
4151 ppc_setup_opcodes ();
4154 demand_empty_rest_of_line ();
4157 /* See whether a symbol is in the TOC section. */
4160 ppc_is_toc_sym (sym)
4164 return symbol_get_tc (sym)->class == XMC_TC;
4167 const char *sname = segment_name (S_GET_SEGMENT (sym));
4169 return strcmp (sname, ".toc") == 0;
4171 return strcmp (sname, ".got") == 0;
4174 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4178 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4180 /* Set the current section. */
4182 ppc_set_current_section (new)
4185 ppc_previous_section = ppc_current_section;
4186 ppc_current_section = new;
4189 /* pseudo-op: .previous
4190 behaviour: toggles the current section with the previous section.
4192 warnings: "No previous section" */
4195 ppc_previous (ignore)
4196 int ignore ATTRIBUTE_UNUSED;
4200 if (ppc_previous_section == NULL)
4202 as_warn (_("No previous section to return to. Directive ignored."));
4206 subseg_set (ppc_previous_section, 0);
4208 ppc_set_current_section (ppc_previous_section);
4211 /* pseudo-op: .pdata
4212 behaviour: predefined read only data section
4216 initial: .section .pdata "adr3"
4217 a - don't know -- maybe a misprint
4218 d - initialized data
4220 3 - double word aligned (that would be 4 byte boundary)
4223 Tag index tables (also known as the function table) for exception
4224 handling, debugging, etc. */
4228 int ignore ATTRIBUTE_UNUSED;
4230 if (pdata_section == 0)
4232 pdata_section = subseg_new (".pdata", 0);
4234 bfd_set_section_flags (stdoutput, pdata_section,
4235 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4236 | SEC_READONLY | SEC_DATA ));
4238 bfd_set_section_alignment (stdoutput, pdata_section, 2);
4242 pdata_section = subseg_new (".pdata", 0);
4244 ppc_set_current_section (pdata_section);
4247 /* pseudo-op: .ydata
4248 behaviour: predefined read only data section
4252 initial: .section .ydata "drw3"
4253 a - don't know -- maybe a misprint
4254 d - initialized data
4256 3 - double word aligned (that would be 4 byte boundary)
4258 Tag tables (also known as the scope table) for exception handling,
4263 int ignore ATTRIBUTE_UNUSED;
4265 if (ydata_section == 0)
4267 ydata_section = subseg_new (".ydata", 0);
4268 bfd_set_section_flags (stdoutput, ydata_section,
4269 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4270 | SEC_READONLY | SEC_DATA ));
4272 bfd_set_section_alignment (stdoutput, ydata_section, 3);
4276 ydata_section = subseg_new (".ydata", 0);
4278 ppc_set_current_section (ydata_section);
4281 /* pseudo-op: .reldata
4282 behaviour: predefined read write data section
4283 double word aligned (4-byte)
4284 FIXME: relocation is applied to it
4285 FIXME: what's the difference between this and .data?
4288 initial: .section .reldata "drw3"
4289 d - initialized data
4292 3 - double word aligned (that would be 8 byte boundary)
4295 Like .data, but intended to hold data subject to relocation, such as
4296 function descriptors, etc. */
4299 ppc_reldata (ignore)
4300 int ignore ATTRIBUTE_UNUSED;
4302 if (reldata_section == 0)
4304 reldata_section = subseg_new (".reldata", 0);
4306 bfd_set_section_flags (stdoutput, reldata_section,
4307 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4310 bfd_set_section_alignment (stdoutput, reldata_section, 2);
4314 reldata_section = subseg_new (".reldata", 0);
4316 ppc_set_current_section (reldata_section);
4319 /* pseudo-op: .rdata
4320 behaviour: predefined read only data section
4324 initial: .section .rdata "dr3"
4325 d - initialized data
4327 3 - double word aligned (that would be 4 byte boundary) */
4331 int ignore ATTRIBUTE_UNUSED;
4333 if (rdata_section == 0)
4335 rdata_section = subseg_new (".rdata", 0);
4336 bfd_set_section_flags (stdoutput, rdata_section,
4337 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4338 | SEC_READONLY | SEC_DATA ));
4340 bfd_set_section_alignment (stdoutput, rdata_section, 2);
4344 rdata_section = subseg_new (".rdata", 0);
4346 ppc_set_current_section (rdata_section);
4349 /* pseudo-op: .ualong
4350 behaviour: much like .int, with the exception that no alignment is
4352 FIXME: test the alignment statement
4358 int ignore ATTRIBUTE_UNUSED;
4364 /* pseudo-op: .znop <symbol name>
4365 behaviour: Issue a nop instruction
4366 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4367 the supplied symbol name.
4369 warnings: Missing symbol name */
4373 int ignore ATTRIBUTE_UNUSED;
4376 const struct powerpc_opcode *opcode;
4387 /* Strip out the symbol name. */
4388 symbol_name = input_line_pointer;
4389 c = get_symbol_end ();
4391 name = xmalloc (input_line_pointer - symbol_name + 1);
4392 strcpy (name, symbol_name);
4394 sym = symbol_find_or_make (name);
4396 *input_line_pointer = c;
4400 /* Look up the opcode in the hash table. */
4401 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
4403 /* Stick in the nop. */
4404 insn = opcode->opcode;
4406 /* Write out the instruction. */
4408 md_number_to_chars (f, insn, 4);
4410 f - frag_now->fr_literal,
4415 BFD_RELOC_16_GOT_PCREL);
4428 register char *name;
4432 register symbolS *symbolP;
4435 name = input_line_pointer;
4436 c = get_symbol_end ();
4438 /* just after name is now '\0'. */
4439 p = input_line_pointer;
4442 if (*input_line_pointer != ',')
4444 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4445 ignore_rest_of_line ();
4449 input_line_pointer++; /* skip ',' */
4450 if ((temp = get_absolute_expression ()) < 0)
4452 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
4453 ignore_rest_of_line ();
4459 /* The third argument to .comm is the alignment. */
4460 if (*input_line_pointer != ',')
4464 ++input_line_pointer;
4465 align = get_absolute_expression ();
4468 as_warn (_("ignoring bad alignment"));
4475 symbolP = symbol_find_or_make (name);
4478 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
4480 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4481 S_GET_NAME (symbolP));
4482 ignore_rest_of_line ();
4486 if (S_GET_VALUE (symbolP))
4488 if (S_GET_VALUE (symbolP) != (valueT) temp)
4489 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4490 S_GET_NAME (symbolP),
4491 (long) S_GET_VALUE (symbolP),
4496 S_SET_VALUE (symbolP, (valueT) temp);
4497 S_SET_EXTERNAL (symbolP);
4498 S_SET_SEGMENT (symbolP, bfd_com_section_ptr);
4501 demand_empty_rest_of_line ();
4505 * implement the .section pseudo op:
4506 * .section name {, "flags"}
4508 * | +--- optional flags: 'b' for bss
4510 * +-- section name 'l' for lib
4514 * 'd' (apparently m88k for data)
4516 * But if the argument is not a quoted string, treat it as a
4517 * subsegment number.
4519 * FIXME: this is a copy of the section processing from obj-coff.c, with
4520 * additions/changes for the moto-pas assembler support. There are three
4523 * FIXME: I just noticed this. This doesn't work at all really. It it
4524 * setting bits that bfd probably neither understands or uses. The
4525 * correct approach (?) will have to incorporate extra fields attached
4526 * to the section to hold the system specific stuff. (krk)
4529 * 'a' - unknown - referred to in documentation, but no definition supplied
4530 * 'c' - section has code
4531 * 'd' - section has initialized data
4532 * 'u' - section has uninitialized data
4533 * 'i' - section contains directives (info)
4534 * 'n' - section can be discarded
4535 * 'R' - remove section at link time
4537 * Section Protection:
4538 * 'r' - section is readable
4539 * 'w' - section is writeable
4540 * 'x' - section is executable
4541 * 's' - section is sharable
4543 * Section Alignment:
4544 * '0' - align to byte boundary
4545 * '1' - align to halfword undary
4546 * '2' - align to word boundary
4547 * '3' - align to doubleword boundary
4548 * '4' - align to quadword boundary
4549 * '5' - align to 32 byte boundary
4550 * '6' - align to 64 byte boundary
4555 ppc_pe_section (ignore)
4556 int ignore ATTRIBUTE_UNUSED;
4558 /* Strip out the section name. */
4567 section_name = input_line_pointer;
4568 c = get_symbol_end ();
4570 name = xmalloc (input_line_pointer - section_name + 1);
4571 strcpy (name, section_name);
4573 *input_line_pointer = c;
4578 flags = SEC_NO_FLAGS;
4580 if (strcmp (name, ".idata$2") == 0)
4584 else if (strcmp (name, ".idata$3") == 0)
4588 else if (strcmp (name, ".idata$4") == 0)
4592 else if (strcmp (name, ".idata$5") == 0)
4596 else if (strcmp (name, ".idata$6") == 0)
4601 /* Default alignment to 16 byte boundary. */
4604 if (*input_line_pointer == ',')
4606 ++input_line_pointer;
4608 if (*input_line_pointer != '"')
4609 exp = get_absolute_expression ();
4612 ++input_line_pointer;
4613 while (*input_line_pointer != '"'
4614 && ! is_end_of_line[(unsigned char) *input_line_pointer])
4616 switch (*input_line_pointer)
4618 /* Section Contents */
4619 case 'a': /* unknown */
4620 as_bad (_("Unsupported section attribute -- 'a'"));
4622 case 'c': /* code section */
4625 case 'd': /* section has initialized data */
4628 case 'u': /* section has uninitialized data */
4629 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4633 case 'i': /* section contains directives (info) */
4634 /* FIXME: This is IMAGE_SCN_LNK_INFO
4636 flags |= SEC_HAS_CONTENTS;
4638 case 'n': /* section can be discarded */
4641 case 'R': /* Remove section at link time */
4642 flags |= SEC_NEVER_LOAD;
4645 /* Section Protection */
4646 case 'r': /* section is readable */
4647 flags |= IMAGE_SCN_MEM_READ;
4649 case 'w': /* section is writeable */
4650 flags |= IMAGE_SCN_MEM_WRITE;
4652 case 'x': /* section is executable */
4653 flags |= IMAGE_SCN_MEM_EXECUTE;
4655 case 's': /* section is sharable */
4656 flags |= IMAGE_SCN_MEM_SHARED;
4659 /* Section Alignment */
4660 case '0': /* align to byte boundary */
4661 flags |= IMAGE_SCN_ALIGN_1BYTES;
4664 case '1': /* align to halfword boundary */
4665 flags |= IMAGE_SCN_ALIGN_2BYTES;
4668 case '2': /* align to word boundary */
4669 flags |= IMAGE_SCN_ALIGN_4BYTES;
4672 case '3': /* align to doubleword boundary */
4673 flags |= IMAGE_SCN_ALIGN_8BYTES;
4676 case '4': /* align to quadword boundary */
4677 flags |= IMAGE_SCN_ALIGN_16BYTES;
4680 case '5': /* align to 32 byte boundary */
4681 flags |= IMAGE_SCN_ALIGN_32BYTES;
4684 case '6': /* align to 64 byte boundary */
4685 flags |= IMAGE_SCN_ALIGN_64BYTES;
4690 as_bad (_("unknown section attribute '%c'"),
4691 *input_line_pointer);
4694 ++input_line_pointer;
4696 if (*input_line_pointer == '"')
4697 ++input_line_pointer;
4701 sec = subseg_new (name, (subsegT) exp);
4703 ppc_set_current_section (sec);
4705 if (flags != SEC_NO_FLAGS)
4707 if (! bfd_set_section_flags (stdoutput, sec, flags))
4708 as_bad (_("error setting flags for \"%s\": %s"),
4709 bfd_section_name (stdoutput, sec),
4710 bfd_errmsg (bfd_get_error ()));
4713 bfd_set_section_alignment (stdoutput, sec, align);
4718 ppc_pe_function (ignore)
4719 int ignore ATTRIBUTE_UNUSED;
4725 name = input_line_pointer;
4726 endc = get_symbol_end ();
4728 ext_sym = symbol_find_or_make (name);
4730 *input_line_pointer = endc;
4732 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4733 SF_SET_FUNCTION (ext_sym);
4734 SF_SET_PROCESS (ext_sym);
4735 coff_add_linesym (ext_sym);
4737 demand_empty_rest_of_line ();
4741 ppc_pe_tocd (ignore)
4742 int ignore ATTRIBUTE_UNUSED;
4744 if (tocdata_section == 0)
4746 tocdata_section = subseg_new (".tocd", 0);
4747 /* FIXME: section flags won't work. */
4748 bfd_set_section_flags (stdoutput, tocdata_section,
4749 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4750 | SEC_READONLY | SEC_DATA));
4752 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
4756 rdata_section = subseg_new (".tocd", 0);
4759 ppc_set_current_section (tocdata_section);
4761 demand_empty_rest_of_line ();
4764 /* Don't adjust TOC relocs to use the section symbol. */
4767 ppc_pe_fix_adjustable (fix)
4770 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
4777 /* XCOFF specific symbol and file handling. */
4779 /* Canonicalize the symbol name. We use the to force the suffix, if
4780 any, to use square brackets, and to be in upper case. */
4783 ppc_canonicalize_symbol_name (name)
4788 if (ppc_stab_symbol)
4791 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
4805 for (s++; *s != '\0' && *s != brac; s++)
4808 if (*s == '\0' || s[1] != '\0')
4809 as_bad (_("bad symbol suffix"));
4817 /* Set the class of a symbol based on the suffix, if any. This is
4818 called whenever a new symbol is created. */
4821 ppc_symbol_new_hook (sym)
4824 struct ppc_tc_sy *tc;
4827 tc = symbol_get_tc (sym);
4831 tc->real_name = NULL;
4837 if (ppc_stab_symbol)
4840 s = strchr (S_GET_NAME (sym), '[');
4841 if (s == (const char *) NULL)
4843 /* There is no suffix. */
4852 if (strcmp (s, "BS]") == 0)
4856 if (strcmp (s, "DB]") == 0)
4858 else if (strcmp (s, "DS]") == 0)
4862 if (strcmp (s, "GL]") == 0)
4866 if (strcmp (s, "PR]") == 0)
4870 if (strcmp (s, "RO]") == 0)
4872 else if (strcmp (s, "RW]") == 0)
4876 if (strcmp (s, "SV]") == 0)
4880 if (strcmp (s, "TC]") == 0)
4882 else if (strcmp (s, "TI]") == 0)
4884 else if (strcmp (s, "TB]") == 0)
4886 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
4887 tc->class = XMC_TC0;
4890 if (strcmp (s, "UA]") == 0)
4892 else if (strcmp (s, "UC]") == 0)
4896 if (strcmp (s, "XO]") == 0)
4901 if (tc->class == -1)
4902 as_bad (_("Unrecognized symbol suffix"));
4905 /* Set the class of a label based on where it is defined. This
4906 handles symbols without suffixes. Also, move the symbol so that it
4907 follows the csect symbol. */
4910 ppc_frob_label (sym)
4913 if (ppc_current_csect != (symbolS *) NULL)
4915 if (symbol_get_tc (sym)->class == -1)
4916 symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class;
4918 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4919 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
4920 &symbol_rootP, &symbol_lastP);
4921 symbol_get_tc (ppc_current_csect)->within = sym;
4925 dwarf2_emit_label (sym);
4929 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4930 seen. It tells ppc_adjust_symtab whether it needs to look through
4933 static bfd_boolean ppc_saw_abs;
4935 /* Change the name of a symbol just before writing it out. Set the
4936 real name if the .rename pseudo-op was used. Otherwise, remove any
4937 class suffix. Return 1 if the symbol should not be included in the
4941 ppc_frob_symbol (sym)
4944 static symbolS *ppc_last_function;
4945 static symbolS *set_end;
4947 /* Discard symbols that should not be included in the output symbol
4949 if (! symbol_used_in_reloc_p (sym)
4950 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
4951 || (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
4952 && ! symbol_get_tc (sym)->output
4953 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
4956 /* This one will disappear anyway. Don't make a csect sym for it. */
4957 if (sym == abs_section_sym)
4960 if (symbol_get_tc (sym)->real_name != (char *) NULL)
4961 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
4967 name = S_GET_NAME (sym);
4968 s = strchr (name, '[');
4969 if (s != (char *) NULL)
4975 snew = xmalloc (len + 1);
4976 memcpy (snew, name, len);
4979 S_SET_NAME (sym, snew);
4983 if (set_end != (symbolS *) NULL)
4985 SA_SET_SYM_ENDNDX (set_end, sym);
4989 if (SF_GET_FUNCTION (sym))
4991 if (ppc_last_function != (symbolS *) NULL)
4992 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4993 ppc_last_function = sym;
4994 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
4996 resolve_symbol_value (symbol_get_tc (sym)->size);
4997 SA_SET_SYM_FSIZE (sym,
4998 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
5001 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
5002 && strcmp (S_GET_NAME (sym), ".ef") == 0)
5004 if (ppc_last_function == (symbolS *) NULL)
5005 as_bad (_(".ef with no preceding .function"));
5008 set_end = ppc_last_function;
5009 ppc_last_function = NULL;
5011 /* We don't have a C_EFCN symbol, but we need to force the
5012 COFF backend to believe that it has seen one. */
5013 coff_last_function = NULL;
5017 if (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5018 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
5019 && S_GET_STORAGE_CLASS (sym) != C_FILE
5020 && S_GET_STORAGE_CLASS (sym) != C_FCN
5021 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
5022 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
5023 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
5024 && S_GET_STORAGE_CLASS (sym) != C_BINCL
5025 && S_GET_STORAGE_CLASS (sym) != C_EINCL
5026 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
5027 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
5029 if (S_GET_STORAGE_CLASS (sym) == C_EXT
5030 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
5033 union internal_auxent *a;
5035 /* Create a csect aux. */
5036 i = S_GET_NUMBER_AUXILIARY (sym);
5037 S_SET_NUMBER_AUXILIARY (sym, i + 1);
5038 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
5039 if (symbol_get_tc (sym)->class == XMC_TC0)
5041 /* This is the TOC table. */
5042 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
5043 a->x_csect.x_scnlen.l = 0;
5044 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5046 else if (symbol_get_tc (sym)->subseg != 0)
5048 /* This is a csect symbol. x_scnlen is the size of the
5050 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
5051 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5052 S_GET_SEGMENT (sym))
5053 - S_GET_VALUE (sym));
5056 resolve_symbol_value (symbol_get_tc (sym)->next);
5057 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
5058 - S_GET_VALUE (sym));
5060 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
5062 else if (S_GET_SEGMENT (sym) == bss_section)
5064 /* This is a common symbol. */
5065 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
5066 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
5067 if (S_IS_EXTERNAL (sym))
5068 symbol_get_tc (sym)->class = XMC_RW;
5070 symbol_get_tc (sym)->class = XMC_BS;
5072 else if (S_GET_SEGMENT (sym) == absolute_section)
5074 /* This is an absolute symbol. The csect will be created by
5075 ppc_adjust_symtab. */
5077 a->x_csect.x_smtyp = XTY_LD;
5078 if (symbol_get_tc (sym)->class == -1)
5079 symbol_get_tc (sym)->class = XMC_XO;
5081 else if (! S_IS_DEFINED (sym))
5083 /* This is an external symbol. */
5084 a->x_csect.x_scnlen.l = 0;
5085 a->x_csect.x_smtyp = XTY_ER;
5087 else if (symbol_get_tc (sym)->class == XMC_TC)
5091 /* This is a TOC definition. x_scnlen is the size of the
5093 next = symbol_next (sym);
5094 while (symbol_get_tc (next)->class == XMC_TC0)
5095 next = symbol_next (next);
5096 if (next == (symbolS *) NULL
5097 || symbol_get_tc (next)->class != XMC_TC)
5099 if (ppc_after_toc_frag == (fragS *) NULL)
5100 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5102 - S_GET_VALUE (sym));
5104 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
5105 - S_GET_VALUE (sym));
5109 resolve_symbol_value (next);
5110 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
5111 - S_GET_VALUE (sym));
5113 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5119 /* This is a normal symbol definition. x_scnlen is the
5120 symbol index of the containing csect. */
5121 if (S_GET_SEGMENT (sym) == text_section)
5122 csect = ppc_text_csects;
5123 else if (S_GET_SEGMENT (sym) == data_section)
5124 csect = ppc_data_csects;
5128 /* Skip the initial dummy symbol. */
5129 csect = symbol_get_tc (csect)->next;
5131 if (csect == (symbolS *) NULL)
5133 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
5134 a->x_csect.x_scnlen.l = 0;
5138 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
5140 resolve_symbol_value (symbol_get_tc (csect)->next);
5141 if (S_GET_VALUE (symbol_get_tc (csect)->next)
5142 > S_GET_VALUE (sym))
5144 csect = symbol_get_tc (csect)->next;
5147 a->x_csect.x_scnlen.p =
5148 coffsymbol (symbol_get_bfdsym (csect))->native;
5149 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
5152 a->x_csect.x_smtyp = XTY_LD;
5155 a->x_csect.x_parmhash = 0;
5156 a->x_csect.x_snhash = 0;
5157 if (symbol_get_tc (sym)->class == -1)
5158 a->x_csect.x_smclas = XMC_PR;
5160 a->x_csect.x_smclas = symbol_get_tc (sym)->class;
5161 a->x_csect.x_stab = 0;
5162 a->x_csect.x_snstab = 0;
5164 /* Don't let the COFF backend resort these symbols. */
5165 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
5167 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
5169 /* We want the value to be the symbol index of the referenced
5170 csect symbol. BFD will do that for us if we set the right
5172 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
5173 combined_entry_type *c = coffsymbol (bsym)->native;
5175 S_SET_VALUE (sym, (valueT) (size_t) c);
5176 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
5178 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
5183 /* The value is the offset from the enclosing csect. */
5184 block = symbol_get_tc (sym)->within;
5185 csect = symbol_get_tc (block)->within;
5186 resolve_symbol_value (csect);
5187 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
5189 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
5190 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
5192 /* We want the value to be a file offset into the line numbers.
5193 BFD will do that for us if we set the right flags. We have
5194 already set the value correctly. */
5195 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
5201 /* Adjust the symbol table. This creates csect symbols for all
5202 absolute symbols. */
5205 ppc_adjust_symtab ()
5212 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
5216 union internal_auxent *a;
5218 if (S_GET_SEGMENT (sym) != absolute_section)
5221 csect = symbol_create (".abs[XO]", absolute_section,
5222 S_GET_VALUE (sym), &zero_address_frag);
5223 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
5224 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
5225 i = S_GET_NUMBER_AUXILIARY (csect);
5226 S_SET_NUMBER_AUXILIARY (csect, i + 1);
5227 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
5228 a->x_csect.x_scnlen.l = 0;
5229 a->x_csect.x_smtyp = XTY_SD;
5230 a->x_csect.x_parmhash = 0;
5231 a->x_csect.x_snhash = 0;
5232 a->x_csect.x_smclas = XMC_XO;
5233 a->x_csect.x_stab = 0;
5234 a->x_csect.x_snstab = 0;
5236 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
5238 i = S_GET_NUMBER_AUXILIARY (sym);
5239 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
5240 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
5241 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
5244 ppc_saw_abs = FALSE;
5247 /* Set the VMA for a section. This is called on all the sections in
5251 ppc_frob_section (sec)
5254 static bfd_vma vma = 0;
5256 vma = md_section_align (sec, vma);
5257 bfd_set_section_vma (stdoutput, sec, vma);
5258 vma += bfd_section_size (stdoutput, sec);
5261 #endif /* OBJ_XCOFF */
5263 /* Turn a string in input_line_pointer into a floating point constant
5264 of type TYPE, and store the appropriate bytes in *LITP. The number
5265 of LITTLENUMS emitted is stored in *SIZEP. An error message is
5266 returned, or NULL on OK. */
5269 md_atof (type, litp, sizep)
5275 LITTLENUM_TYPE words[4];
5291 return _("bad call to md_atof");
5294 t = atof_ieee (input_line_pointer, type, words);
5296 input_line_pointer = t;
5300 if (target_big_endian)
5302 for (i = 0; i < prec; i++)
5304 md_number_to_chars (litp, (valueT) words[i], 2);
5310 for (i = prec - 1; i >= 0; i--)
5312 md_number_to_chars (litp, (valueT) words[i], 2);
5320 /* Write a value out to the object file, using the appropriate
5324 md_number_to_chars (buf, val, n)
5329 if (target_big_endian)
5330 number_to_chars_bigendian (buf, val, n);
5332 number_to_chars_littleendian (buf, val, n);
5335 /* Align a section (I don't know why this is machine dependent). */
5338 md_section_align (asection *seg ATTRIBUTE_UNUSED, valueT addr)
5343 int align = bfd_get_section_alignment (stdoutput, seg);
5345 return ((addr + (1 << align) - 1) & (-1 << align));
5349 /* We don't have any form of relaxing. */
5352 md_estimate_size_before_relax (fragp, seg)
5353 fragS *fragp ATTRIBUTE_UNUSED;
5354 asection *seg ATTRIBUTE_UNUSED;
5360 /* Convert a machine dependent frag. We never generate these. */
5363 md_convert_frag (abfd, sec, fragp)
5364 bfd *abfd ATTRIBUTE_UNUSED;
5365 asection *sec ATTRIBUTE_UNUSED;
5366 fragS *fragp ATTRIBUTE_UNUSED;
5371 /* We have no need to default values of symbols. */
5374 md_undefined_symbol (name)
5375 char *name ATTRIBUTE_UNUSED;
5380 /* Functions concerning relocs. */
5382 /* The location from which a PC relative jump should be calculated,
5383 given a PC relative reloc. */
5386 md_pcrel_from_section (fixp, sec)
5388 segT sec ATTRIBUTE_UNUSED;
5390 return fixp->fx_frag->fr_address + fixp->fx_where;
5395 /* This is called to see whether a fixup should be adjusted to use a
5396 section symbol. We take the opportunity to change a fixup against
5397 a symbol in the TOC subsegment into a reloc against the
5398 corresponding .tc symbol. */
5401 ppc_fix_adjustable (fix)
5404 valueT val = resolve_symbol_value (fix->fx_addsy);
5405 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
5406 TC_SYMFIELD_TYPE *tc;
5408 if (symseg == absolute_section)
5411 if (ppc_toc_csect != (symbolS *) NULL
5412 && fix->fx_addsy != ppc_toc_csect
5413 && symseg == data_section
5414 && val >= ppc_toc_frag->fr_address
5415 && (ppc_after_toc_frag == (fragS *) NULL
5416 || val < ppc_after_toc_frag->fr_address))
5420 for (sy = symbol_next (ppc_toc_csect);
5421 sy != (symbolS *) NULL;
5422 sy = symbol_next (sy))
5424 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
5426 if (sy_tc->class == XMC_TC0)
5428 if (sy_tc->class != XMC_TC)
5430 if (val == resolve_symbol_value (sy))
5433 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
5438 as_bad_where (fix->fx_file, fix->fx_line,
5439 _("symbol in .toc does not match any .tc"));
5442 /* Possibly adjust the reloc to be against the csect. */
5443 tc = symbol_get_tc (fix->fx_addsy);
5445 && tc->class != XMC_TC0
5446 && tc->class != XMC_TC
5447 && symseg != bss_section
5448 /* Don't adjust if this is a reloc in the toc section. */
5449 && (symseg != data_section
5450 || ppc_toc_csect == NULL
5451 || val < ppc_toc_frag->fr_address
5452 || (ppc_after_toc_frag != NULL
5453 && val >= ppc_after_toc_frag->fr_address)))
5456 symbolS *next_csect;
5458 if (symseg == text_section)
5459 csect = ppc_text_csects;
5460 else if (symseg == data_section)
5461 csect = ppc_data_csects;
5465 /* Skip the initial dummy symbol. */
5466 csect = symbol_get_tc (csect)->next;
5468 if (csect != (symbolS *) NULL)
5470 while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL
5471 && (symbol_get_frag (next_csect)->fr_address <= val))
5473 /* If the csect address equals the symbol value, then we
5474 have to look through the full symbol table to see
5475 whether this is the csect we want. Note that we will
5476 only get here if the csect has zero length. */
5477 if (symbol_get_frag (csect)->fr_address == val
5478 && S_GET_VALUE (csect) == val)
5482 for (scan = symbol_next (csect);
5484 scan = symbol_next (scan))
5486 if (symbol_get_tc (scan)->subseg != 0)
5488 if (scan == fix->fx_addsy)
5492 /* If we found the symbol before the next csect
5493 symbol, then this is the csect we want. */
5494 if (scan == fix->fx_addsy)
5501 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
5502 fix->fx_addsy = csect;
5507 /* Adjust a reloc against a .lcomm symbol to be against the base
5509 if (symseg == bss_section
5510 && ! S_IS_EXTERNAL (fix->fx_addsy))
5512 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
5514 fix->fx_offset += val - resolve_symbol_value (sy);
5521 /* A reloc from one csect to another must be kept. The assembler
5522 will, of course, keep relocs between sections, and it will keep
5523 absolute relocs, but we need to force it to keep PC relative relocs
5524 between two csects in the same section. */
5527 ppc_force_relocation (fix)
5530 /* At this point fix->fx_addsy should already have been converted to
5531 a csect symbol. If the csect does not include the fragment, then
5532 we need to force the relocation. */
5534 && fix->fx_addsy != NULL
5535 && symbol_get_tc (fix->fx_addsy)->subseg != 0
5536 && ((symbol_get_frag (fix->fx_addsy)->fr_address
5537 > fix->fx_frag->fr_address)
5538 || (symbol_get_tc (fix->fx_addsy)->next != NULL
5539 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
5540 <= fix->fx_frag->fr_address))))
5543 return generic_force_reloc (fix);
5546 #endif /* OBJ_XCOFF */
5549 /* If this function returns non-zero, it guarantees that a relocation
5550 will be emitted for a fixup. */
5553 ppc_force_relocation (fix)
5556 /* Branch prediction relocations must force a relocation, as must
5557 the vtable description relocs. */
5558 switch (fix->fx_r_type)
5560 case BFD_RELOC_PPC_B16_BRTAKEN:
5561 case BFD_RELOC_PPC_B16_BRNTAKEN:
5562 case BFD_RELOC_PPC_BA16_BRTAKEN:
5563 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5564 case BFD_RELOC_24_PLT_PCREL:
5565 case BFD_RELOC_PPC64_TOC:
5571 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
5572 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
5575 return generic_force_reloc (fix);
5579 ppc_fix_adjustable (fix)
5582 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
5583 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
5584 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
5585 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
5586 && fix->fx_r_type != BFD_RELOC_GPREL16
5587 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
5588 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
5589 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
5590 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA));
5594 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
5595 rs_align_code frag. */
5598 ppc_handle_align (struct frag *fragP)
5600 valueT count = (fragP->fr_next->fr_address
5601 - (fragP->fr_address + fragP->fr_fix));
5603 if (count != 0 && (count & 3) == 0)
5605 char *dest = fragP->fr_literal + fragP->fr_fix;
5608 md_number_to_chars (dest, 0x60000000, 4);
5610 if ((ppc_cpu & PPC_OPCODE_POWER6) != 0)
5612 /* For power6, we want the last nop to be a group terminating
5613 one, "ori 1,1,0". Do this by inserting an rs_fill frag
5614 immediately after this one, with its address set to the last
5615 nop location. This will automatically reduce the number of
5616 nops in the current frag by one. */
5619 struct frag *group_nop = xmalloc (SIZEOF_STRUCT_FRAG + 4);
5621 memcpy (group_nop, fragP, SIZEOF_STRUCT_FRAG);
5622 group_nop->fr_address = group_nop->fr_next->fr_address - 4;
5623 group_nop->fr_fix = 0;
5624 group_nop->fr_offset = 1;
5625 group_nop->fr_type = rs_fill;
5626 fragP->fr_next = group_nop;
5627 dest = group_nop->fr_literal;
5630 md_number_to_chars (dest, 0x60210000, 4);
5635 /* Apply a fixup to the object code. This is called for all the
5636 fixups we generated by the call to fix_new_exp, above. In the call
5637 above we used a reloc code which was the largest legal reloc code
5638 plus the operand index. Here we undo that to recover the operand
5639 index. At this point all symbol values should be fully resolved,
5640 and we attempt to completely resolve the reloc. If we can not do
5641 that, we determine the correct reloc code and put it back in the
5645 md_apply_fix (fixP, valP, seg)
5648 segT seg ATTRIBUTE_UNUSED;
5650 valueT value = * valP;
5653 if (fixP->fx_addsy != NULL)
5655 /* Hack around bfd_install_relocation brain damage. */
5657 value += fixP->fx_frag->fr_address + fixP->fx_where;
5662 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5663 the symbol values. If we are doing this relocation the code in
5664 write.c is going to call bfd_install_relocation, which is also
5665 going to use the symbol value. That means that if the reloc is
5666 fully resolved we want to use *valP since bfd_install_relocation is
5668 However, if the reloc is not fully resolved we do not want to use
5669 *valP, and must use fx_offset instead. However, if the reloc
5670 is PC relative, we do want to use *valP since it includes the
5671 result of md_pcrel_from. This is confusing. */
5672 if (fixP->fx_addsy == (symbolS *) NULL)
5675 else if (fixP->fx_pcrel)
5679 value = fixP->fx_offset;
5682 if (fixP->fx_subsy != (symbolS *) NULL)
5684 /* We can't actually support subtracting a symbol. */
5685 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
5688 if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
5691 const struct powerpc_operand *operand;
5695 opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
5697 operand = &powerpc_operands[opindex];
5700 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5701 does not generate a reloc. It uses the offset of `sym' within its
5702 csect. Other usages, such as `.long sym', generate relocs. This
5703 is the documented behaviour of non-TOC symbols. */
5704 if ((operand->flags & PPC_OPERAND_PARENS) != 0
5705 && (operand->bitm & 0xfff0) == 0xfff0
5706 && operand->shift == 0
5707 && (operand->insert == NULL || ppc_obj64)
5708 && fixP->fx_addsy != NULL
5709 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
5710 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC
5711 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC0
5712 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
5714 value = fixP->fx_offset;
5719 /* Fetch the instruction, insert the fully resolved operand
5720 value, and stuff the instruction back again. */
5721 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5722 if (target_big_endian)
5723 insn = bfd_getb32 ((unsigned char *) where);
5725 insn = bfd_getl32 ((unsigned char *) where);
5726 insn = ppc_insert_operand (insn, operand, (offsetT) value,
5727 fixP->fx_file, fixP->fx_line);
5728 if (target_big_endian)
5729 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5731 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5734 /* Nothing else to do here. */
5737 assert (fixP->fx_addsy != NULL);
5739 /* Determine a BFD reloc value based on the operand information.
5740 We are only prepared to turn a few of the operands into
5742 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5743 && operand->bitm == 0x3fffffc
5744 && operand->shift == 0)
5745 fixP->fx_r_type = BFD_RELOC_PPC_B26;
5746 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5747 && operand->bitm == 0xfffc
5748 && operand->shift == 0)
5750 fixP->fx_r_type = BFD_RELOC_PPC_B16;
5753 if (target_big_endian)
5754 fixP->fx_where += 2;
5757 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5758 && operand->bitm == 0x3fffffc
5759 && operand->shift == 0)
5760 fixP->fx_r_type = BFD_RELOC_PPC_BA26;
5761 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5762 && operand->bitm == 0xfffc
5763 && operand->shift == 0)
5765 fixP->fx_r_type = BFD_RELOC_PPC_BA16;
5768 if (target_big_endian)
5769 fixP->fx_where += 2;
5772 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5773 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
5774 && (operand->bitm & 0xfff0) == 0xfff0
5775 && operand->shift == 0)
5777 if (ppc_is_toc_sym (fixP->fx_addsy))
5779 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
5782 && (operand->flags & PPC_OPERAND_DS) != 0)
5783 fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
5788 fixP->fx_r_type = BFD_RELOC_16;
5791 && (operand->flags & PPC_OPERAND_DS) != 0)
5792 fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS;
5796 if (target_big_endian)
5797 fixP->fx_where += 2;
5799 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5805 /* Use expr_symbol_where to see if this is an expression
5807 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
5808 as_bad_where (fixP->fx_file, fixP->fx_line,
5809 _("unresolved expression that must be resolved"));
5811 as_bad_where (fixP->fx_file, fixP->fx_line,
5812 _("unsupported relocation against %s"),
5813 S_GET_NAME (fixP->fx_addsy));
5821 ppc_elf_validate_fix (fixP, seg);
5823 switch (fixP->fx_r_type)
5825 case BFD_RELOC_CTOR:
5832 fixP->fx_r_type = BFD_RELOC_32_PCREL;
5836 case BFD_RELOC_32_PCREL:
5837 case BFD_RELOC_PPC_EMB_NADDR32:
5838 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5845 fixP->fx_r_type = BFD_RELOC_64_PCREL;
5848 case BFD_RELOC_64_PCREL:
5849 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5853 case BFD_RELOC_GPREL16:
5854 case BFD_RELOC_16_GOT_PCREL:
5855 case BFD_RELOC_16_GOTOFF:
5856 case BFD_RELOC_LO16_GOTOFF:
5857 case BFD_RELOC_HI16_GOTOFF:
5858 case BFD_RELOC_HI16_S_GOTOFF:
5859 case BFD_RELOC_16_BASEREL:
5860 case BFD_RELOC_LO16_BASEREL:
5861 case BFD_RELOC_HI16_BASEREL:
5862 case BFD_RELOC_HI16_S_BASEREL:
5863 case BFD_RELOC_PPC_EMB_NADDR16:
5864 case BFD_RELOC_PPC_EMB_NADDR16_LO:
5865 case BFD_RELOC_PPC_EMB_NADDR16_HI:
5866 case BFD_RELOC_PPC_EMB_NADDR16_HA:
5867 case BFD_RELOC_PPC_EMB_SDAI16:
5868 case BFD_RELOC_PPC_EMB_SDA2REL:
5869 case BFD_RELOC_PPC_EMB_SDA2I16:
5870 case BFD_RELOC_PPC_EMB_RELSEC16:
5871 case BFD_RELOC_PPC_EMB_RELST_LO:
5872 case BFD_RELOC_PPC_EMB_RELST_HI:
5873 case BFD_RELOC_PPC_EMB_RELST_HA:
5874 case BFD_RELOC_PPC_EMB_RELSDA:
5875 case BFD_RELOC_PPC_TOC16:
5877 case BFD_RELOC_PPC64_TOC16_LO:
5878 case BFD_RELOC_PPC64_TOC16_HI:
5879 case BFD_RELOC_PPC64_TOC16_HA:
5883 if (fixP->fx_addsy != NULL)
5884 as_bad_where (fixP->fx_file, fixP->fx_line,
5885 _("cannot emit PC relative %s relocation against %s"),
5886 bfd_get_reloc_code_name (fixP->fx_r_type),
5887 S_GET_NAME (fixP->fx_addsy));
5889 as_bad_where (fixP->fx_file, fixP->fx_line,
5890 _("cannot emit PC relative %s relocation"),
5891 bfd_get_reloc_code_name (fixP->fx_r_type));
5894 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5900 fixP->fx_r_type = BFD_RELOC_16_PCREL;
5903 case BFD_RELOC_16_PCREL:
5904 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5908 case BFD_RELOC_LO16:
5910 fixP->fx_r_type = BFD_RELOC_LO16_PCREL;
5913 case BFD_RELOC_LO16_PCREL:
5914 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5918 /* This case happens when you write, for example,
5920 where L1 and L2 are defined later. */
5921 case BFD_RELOC_HI16:
5923 fixP->fx_r_type = BFD_RELOC_HI16_PCREL;
5926 case BFD_RELOC_HI16_PCREL:
5927 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5931 case BFD_RELOC_HI16_S:
5933 fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL;
5936 case BFD_RELOC_HI16_S_PCREL:
5937 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5942 case BFD_RELOC_PPC64_HIGHER:
5945 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5946 PPC_HIGHER (value), 2);
5949 case BFD_RELOC_PPC64_HIGHER_S:
5952 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5953 PPC_HIGHERA (value), 2);
5956 case BFD_RELOC_PPC64_HIGHEST:
5959 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5960 PPC_HIGHEST (value), 2);
5963 case BFD_RELOC_PPC64_HIGHEST_S:
5966 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5967 PPC_HIGHESTA (value), 2);
5970 case BFD_RELOC_PPC64_ADDR16_DS:
5971 case BFD_RELOC_PPC64_ADDR16_LO_DS:
5972 case BFD_RELOC_PPC64_GOT16_DS:
5973 case BFD_RELOC_PPC64_GOT16_LO_DS:
5974 case BFD_RELOC_PPC64_PLT16_LO_DS:
5975 case BFD_RELOC_PPC64_SECTOFF_DS:
5976 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
5977 case BFD_RELOC_PPC64_TOC16_DS:
5978 case BFD_RELOC_PPC64_TOC16_LO_DS:
5979 case BFD_RELOC_PPC64_PLTGOT16_DS:
5980 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
5984 char *where = fixP->fx_frag->fr_literal + fixP->fx_where;
5985 unsigned long val, mask;
5987 if (target_big_endian)
5988 val = bfd_getb32 (where - 2);
5990 val = bfd_getl32 (where);
5992 /* lq insns reserve the four lsbs. */
5993 if ((ppc_cpu & PPC_OPCODE_POWER4) != 0
5994 && (val & (0x3f << 26)) == (56u << 26))
5996 val |= value & mask;
5997 if (target_big_endian)
5998 bfd_putb16 ((bfd_vma) val, where);
6000 bfd_putl16 ((bfd_vma) val, where);
6004 case BFD_RELOC_PPC_B16_BRTAKEN:
6005 case BFD_RELOC_PPC_B16_BRNTAKEN:
6006 case BFD_RELOC_PPC_BA16_BRTAKEN:
6007 case BFD_RELOC_PPC_BA16_BRNTAKEN:
6010 case BFD_RELOC_PPC_TLS:
6013 case BFD_RELOC_PPC_DTPMOD:
6014 case BFD_RELOC_PPC_TPREL16:
6015 case BFD_RELOC_PPC_TPREL16_LO:
6016 case BFD_RELOC_PPC_TPREL16_HI:
6017 case BFD_RELOC_PPC_TPREL16_HA:
6018 case BFD_RELOC_PPC_TPREL:
6019 case BFD_RELOC_PPC_DTPREL16:
6020 case BFD_RELOC_PPC_DTPREL16_LO:
6021 case BFD_RELOC_PPC_DTPREL16_HI:
6022 case BFD_RELOC_PPC_DTPREL16_HA:
6023 case BFD_RELOC_PPC_DTPREL:
6024 case BFD_RELOC_PPC_GOT_TLSGD16:
6025 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
6026 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
6027 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
6028 case BFD_RELOC_PPC_GOT_TLSLD16:
6029 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
6030 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
6031 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
6032 case BFD_RELOC_PPC_GOT_TPREL16:
6033 case BFD_RELOC_PPC_GOT_TPREL16_LO:
6034 case BFD_RELOC_PPC_GOT_TPREL16_HI:
6035 case BFD_RELOC_PPC_GOT_TPREL16_HA:
6036 case BFD_RELOC_PPC_GOT_DTPREL16:
6037 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
6038 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
6039 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
6040 case BFD_RELOC_PPC64_TPREL16_DS:
6041 case BFD_RELOC_PPC64_TPREL16_LO_DS:
6042 case BFD_RELOC_PPC64_TPREL16_HIGHER:
6043 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
6044 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
6045 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
6046 case BFD_RELOC_PPC64_DTPREL16_DS:
6047 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
6048 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
6049 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
6050 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
6051 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
6052 S_SET_THREAD_LOCAL (fixP->fx_addsy);
6055 /* Because SDA21 modifies the register field, the size is set to 4
6056 bytes, rather than 2, so offset it here appropriately. */
6057 case BFD_RELOC_PPC_EMB_SDA21:
6061 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where
6062 + ((target_big_endian) ? 2 : 0),
6069 /* This can occur if there is a bug in the input assembler, eg:
6070 ".byte <undefined_symbol> - ." */
6072 as_bad (_("Unable to handle reference to symbol %s"),
6073 S_GET_NAME (fixP->fx_addsy));
6075 as_bad (_("Unable to resolve expression"));
6079 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6083 case BFD_RELOC_24_PLT_PCREL:
6084 case BFD_RELOC_PPC_LOCAL24PC:
6085 if (!fixP->fx_pcrel && !fixP->fx_done)
6093 /* Fetch the instruction, insert the fully resolved operand
6094 value, and stuff the instruction back again. */
6095 where = fixP->fx_frag->fr_literal + fixP->fx_where;
6096 if (target_big_endian)
6097 insn = bfd_getb32 ((unsigned char *) where);
6099 insn = bfd_getl32 ((unsigned char *) where);
6100 if ((value & 3) != 0)
6101 as_bad_where (fixP->fx_file, fixP->fx_line,
6102 _("must branch to an address a multiple of 4"));
6103 if ((offsetT) value < -0x40000000
6104 || (offsetT) value >= 0x40000000)
6105 as_bad_where (fixP->fx_file, fixP->fx_line,
6106 _("@local or @plt branch destination is too far away, %ld bytes"),
6108 insn = insn | (value & 0x03fffffc);
6109 if (target_big_endian)
6110 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
6112 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
6116 case BFD_RELOC_VTABLE_INHERIT:
6119 && !S_IS_DEFINED (fixP->fx_addsy)
6120 && !S_IS_WEAK (fixP->fx_addsy))
6121 S_SET_WEAK (fixP->fx_addsy);
6124 case BFD_RELOC_VTABLE_ENTRY:
6129 /* Generated by reference to `sym@tocbase'. The sym is
6130 ignored by the linker. */
6131 case BFD_RELOC_PPC64_TOC:
6137 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
6144 fixP->fx_addnumber = value;
6146 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6147 from the section contents. If we are going to be emitting a reloc
6148 then the section contents are immaterial, so don't warn if they
6149 happen to overflow. Leave such warnings to ld. */
6151 fixP->fx_no_overflow = 1;
6153 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
6154 fixP->fx_addnumber = 0;
6158 fixP->fx_addnumber = 0;
6160 /* We want to use the offset within the data segment of the
6161 symbol, not the actual VMA of the symbol. */
6162 fixP->fx_addnumber =
6163 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy));
6169 /* Generate a reloc for a fixup. */
6172 tc_gen_reloc (seg, fixp)
6173 asection *seg ATTRIBUTE_UNUSED;
6178 reloc = (arelent *) xmalloc (sizeof (arelent));
6180 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
6181 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
6182 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
6183 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
6184 if (reloc->howto == (reloc_howto_type *) NULL)
6186 as_bad_where (fixp->fx_file, fixp->fx_line,
6187 _("reloc %d not supported by object file format"),
6188 (int) fixp->fx_r_type);
6191 reloc->addend = fixp->fx_addnumber;
6197 ppc_cfi_frame_initial_instructions ()
6199 cfi_add_CFA_def_cfa (1, 0);
6203 tc_ppc_regname_to_dw2regnum (char *regname)
6205 unsigned int regnum = -1;
6209 static struct { char *name; int dw2regnum; } regnames[] =
6211 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6212 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6213 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6214 { "spe_acc", 111 }, { "spefscr", 112 }
6217 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
6218 if (strcmp (regnames[i].name, regname) == 0)
6219 return regnames[i].dw2regnum;
6221 if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v')
6223 p = regname + 1 + (regname[1] == '.');
6224 regnum = strtoul (p, &q, 10);
6225 if (p == q || *q || regnum >= 32)
6227 if (regname[0] == 'f')
6229 else if (regname[0] == 'v')
6232 else if (regname[0] == 'c' && regname[1] == 'r')
6234 p = regname + 2 + (regname[2] == '.');
6235 if (p[0] < '0' || p[0] > '7' || p[1])
6237 regnum = p[0] - '0' + 68;