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 void ppc_macro (char *, const struct powerpc_macro *);
88 static void ppc_byte (int);
90 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
91 static void ppc_tc (int);
92 static void ppc_machine (int);
96 static void ppc_comm (int);
97 static void ppc_bb (int);
98 static void ppc_bc (int);
99 static void ppc_bf (int);
100 static void ppc_biei (int);
101 static void ppc_bs (int);
102 static void ppc_eb (int);
103 static void ppc_ec (int);
104 static void ppc_ef (int);
105 static void ppc_es (int);
106 static void ppc_csect (int);
107 static void ppc_change_csect (symbolS *, offsetT);
108 static void ppc_function (int);
109 static void ppc_extern (int);
110 static void ppc_lglobl (int);
111 static void ppc_section (int);
112 static void ppc_named_section (int);
113 static void ppc_stabx (int);
114 static void ppc_rename (int);
115 static void ppc_toc (int);
116 static void ppc_xcoff_cons (int);
117 static void ppc_vbyte (int);
121 static void ppc_elf_cons (int);
122 static void ppc_elf_rdata (int);
123 static void ppc_elf_lcomm (int);
127 static void ppc_previous (int);
128 static void ppc_pdata (int);
129 static void ppc_ydata (int);
130 static void ppc_reldata (int);
131 static void ppc_rdata (int);
132 static void ppc_ualong (int);
133 static void ppc_znop (int);
134 static void ppc_pe_comm (int);
135 static void ppc_pe_section (int);
136 static void ppc_pe_function (int);
137 static void ppc_pe_tocd (int);
140 /* Generic assembler global variables which must be defined by all
144 /* This string holds the chars that always start a comment. If the
145 pre-processor is disabled, these aren't very useful. The macro
146 tc_comment_chars points to this. We use this, rather than the
147 usual comment_chars, so that we can switch for Solaris conventions. */
148 static const char ppc_solaris_comment_chars[] = "#!";
149 static const char ppc_eabi_comment_chars[] = "#";
151 #ifdef TARGET_SOLARIS_COMMENT
152 const char *ppc_comment_chars = ppc_solaris_comment_chars;
154 const char *ppc_comment_chars = ppc_eabi_comment_chars;
157 const char comment_chars[] = "#";
160 /* Characters which start a comment at the beginning of a line. */
161 const char line_comment_chars[] = "#";
163 /* Characters which may be used to separate multiple commands on a
165 const char line_separator_chars[] = ";";
167 /* Characters which are used to indicate an exponent in a floating
169 const char EXP_CHARS[] = "eE";
171 /* Characters which mean that a number is a floating point constant,
173 const char FLT_CHARS[] = "dD";
175 /* Anything that can start an operand needs to be mentioned here,
176 to stop the input scrubber eating whitespace. */
177 const char ppc_symbol_chars[] = "%[";
179 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
180 int ppc_cie_data_alignment;
182 /* The target specific pseudo-ops which we support. */
184 const pseudo_typeS md_pseudo_table[] =
186 /* Pseudo-ops which must be overridden. */
187 { "byte", ppc_byte, 0 },
190 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
191 legitimately belong in the obj-*.c file. However, XCOFF is based
192 on COFF, and is only implemented for the RS/6000. We just use
193 obj-coff.c, and add what we need here. */
194 { "comm", ppc_comm, 0 },
195 { "lcomm", ppc_comm, 1 },
199 { "bi", ppc_biei, 0 },
201 { "csect", ppc_csect, 0 },
202 { "data", ppc_section, 'd' },
206 { "ei", ppc_biei, 1 },
208 { "extern", ppc_extern, 0 },
209 { "function", ppc_function, 0 },
210 { "lglobl", ppc_lglobl, 0 },
211 { "rename", ppc_rename, 0 },
212 { "section", ppc_named_section, 0 },
213 { "stabx", ppc_stabx, 0 },
214 { "text", ppc_section, 't' },
215 { "toc", ppc_toc, 0 },
216 { "long", ppc_xcoff_cons, 2 },
217 { "llong", ppc_xcoff_cons, 3 },
218 { "word", ppc_xcoff_cons, 1 },
219 { "short", ppc_xcoff_cons, 1 },
220 { "vbyte", ppc_vbyte, 0 },
224 { "llong", ppc_elf_cons, 8 },
225 { "quad", ppc_elf_cons, 8 },
226 { "long", ppc_elf_cons, 4 },
227 { "word", ppc_elf_cons, 2 },
228 { "short", ppc_elf_cons, 2 },
229 { "rdata", ppc_elf_rdata, 0 },
230 { "rodata", ppc_elf_rdata, 0 },
231 { "lcomm", ppc_elf_lcomm, 0 },
235 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
236 { "previous", ppc_previous, 0 },
237 { "pdata", ppc_pdata, 0 },
238 { "ydata", ppc_ydata, 0 },
239 { "reldata", ppc_reldata, 0 },
240 { "rdata", ppc_rdata, 0 },
241 { "ualong", ppc_ualong, 0 },
242 { "znop", ppc_znop, 0 },
243 { "comm", ppc_pe_comm, 0 },
244 { "lcomm", ppc_pe_comm, 1 },
245 { "section", ppc_pe_section, 0 },
246 { "function", ppc_pe_function,0 },
247 { "tocd", ppc_pe_tocd, 0 },
250 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
252 { "machine", ppc_machine, 0 },
259 /* Predefined register names if -mregnames (or default for Windows NT).
260 In general, there are lots of them, in an attempt to be compatible
261 with a number of other Windows NT assemblers. */
263 /* Structure to hold information about predefined registers. */
270 /* List of registers that are pre-defined:
272 Each general register has predefined names of the form:
273 1. r<reg_num> which has the value <reg_num>.
274 2. r.<reg_num> which has the value <reg_num>.
276 Each floating point register has predefined names of the form:
277 1. f<reg_num> which has the value <reg_num>.
278 2. f.<reg_num> which has the value <reg_num>.
280 Each vector unit register has predefined names of the form:
281 1. v<reg_num> which has the value <reg_num>.
282 2. v.<reg_num> which has the value <reg_num>.
284 Each condition register has predefined names of the form:
285 1. cr<reg_num> which has the value <reg_num>.
286 2. cr.<reg_num> which has the value <reg_num>.
288 There are individual registers as well:
289 sp or r.sp has the value 1
290 rtoc or r.toc has the value 2
291 fpscr has the value 0
297 dsisr has the value 18
299 sdr1 has the value 25
300 srr0 has the value 26
301 srr1 has the value 27
303 The table is sorted. Suitable for searching by a binary search. */
305 static const struct pd_reg pre_defined_registers[] =
307 { "cr.0", 0 }, /* Condition Registers */
327 { "dar", 19 }, /* Data Access Register */
328 { "dec", 22 }, /* Decrementer */
329 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
331 { "f.0", 0 }, /* Floating point registers */
399 { "lr", 8 }, /* Link Register */
403 { "r.0", 0 }, /* General Purpose Registers */
436 { "r.sp", 1 }, /* Stack Pointer */
438 { "r.toc", 2 }, /* Pointer to the table of contents */
440 { "r0", 0 }, /* More general purpose registers */
473 { "rtoc", 2 }, /* Table of contents */
475 { "sdr1", 25 }, /* Storage Description Register 1 */
479 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
480 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
482 { "v.0", 0 }, /* Vector registers */
552 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
554 /* Given NAME, find the register number associated with that name, return
555 the integer value associated with the given name or -1 on failure. */
558 reg_name_search (const struct pd_reg *regs, int regcount, const char *name)
560 int middle, low, high;
568 middle = (low + high) / 2;
569 cmp = strcasecmp (name, regs[middle].name);
575 return regs[middle].value;
583 * Summary of register_name.
585 * in: Input_line_pointer points to 1st char of operand.
587 * out: A expressionS.
588 * The operand may have been a register: in this case, X_op == O_register,
589 * X_add_number is set to the register number, and truth is returned.
590 * Input_line_pointer->(next non-blank) char after operand, or is in its
595 register_name (expressionS *expressionP)
602 /* Find the spelling of the operand. */
603 start = name = input_line_pointer;
604 if (name[0] == '%' && ISALPHA (name[1]))
605 name = ++input_line_pointer;
607 else if (!reg_names_p || !ISALPHA (name[0]))
610 c = get_symbol_end ();
611 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
613 /* Put back the delimiting char. */
614 *input_line_pointer = c;
616 /* Look to see if it's in the register table. */
619 expressionP->X_op = O_register;
620 expressionP->X_add_number = reg_number;
622 /* Make the rest nice. */
623 expressionP->X_add_symbol = NULL;
624 expressionP->X_op_symbol = NULL;
628 /* Reset the line as if we had not done anything. */
629 input_line_pointer = start;
633 /* This function is called for each symbol seen in an expression. It
634 handles the special parsing which PowerPC assemblers are supposed
635 to use for condition codes. */
637 /* Whether to do the special parsing. */
638 static bfd_boolean cr_operand;
640 /* Names to recognize in a condition code. This table is sorted. */
641 static const struct pd_reg cr_names[] =
658 /* Parsing function. This returns non-zero if it recognized an
662 ppc_parse_name (const char *name, expressionS *expr)
669 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
674 expr->X_op = O_constant;
675 expr->X_add_number = val;
680 /* Local variables. */
682 /* The type of processor we are assembling for. This is one or more
683 of the PPC_OPCODE flags defined in opcode/ppc.h. */
684 static unsigned long ppc_cpu = PPC_OPCODE_ANY;
686 /* Whether to target xcoff64/elf64. */
687 static unsigned int ppc_obj64 = BFD_DEFAULT_TARGET_SIZE == 64;
689 /* Opcode hash table. */
690 static struct hash_control *ppc_hash;
692 /* Macro hash table. */
693 static struct hash_control *ppc_macro_hash;
696 /* What type of shared library support to use. */
697 static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE;
699 /* Flags to set in the elf header. */
700 static flagword ppc_flags = 0;
702 /* Whether this is Solaris or not. */
703 #ifdef TARGET_SOLARIS_COMMENT
704 #define SOLARIS_P TRUE
706 #define SOLARIS_P FALSE
709 static bfd_boolean msolaris = SOLARIS_P;
714 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
715 using a bunch of different sections. These assembler sections,
716 however, are all encompassed within the .text or .data sections of
717 the final output file. We handle this by using different
718 subsegments within these main segments. */
720 /* Next subsegment to allocate within the .text segment. */
721 static subsegT ppc_text_subsegment = 2;
723 /* Linked list of csects in the text section. */
724 static symbolS *ppc_text_csects;
726 /* Next subsegment to allocate within the .data segment. */
727 static subsegT ppc_data_subsegment = 2;
729 /* Linked list of csects in the data section. */
730 static symbolS *ppc_data_csects;
732 /* The current csect. */
733 static symbolS *ppc_current_csect;
735 /* The RS/6000 assembler uses a TOC which holds addresses of functions
736 and variables. Symbols are put in the TOC with the .tc pseudo-op.
737 A special relocation is used when accessing TOC entries. We handle
738 the TOC as a subsegment within the .data segment. We set it up if
739 we see a .toc pseudo-op, and save the csect symbol here. */
740 static symbolS *ppc_toc_csect;
742 /* The first frag in the TOC subsegment. */
743 static fragS *ppc_toc_frag;
745 /* The first frag in the first subsegment after the TOC in the .data
746 segment. NULL if there are no subsegments after the TOC. */
747 static fragS *ppc_after_toc_frag;
749 /* The current static block. */
750 static symbolS *ppc_current_block;
752 /* The COFF debugging section; set by md_begin. This is not the
753 .debug section, but is instead the secret BFD section which will
754 cause BFD to set the section number of a symbol to N_DEBUG. */
755 static asection *ppc_coff_debug_section;
757 #endif /* OBJ_XCOFF */
761 /* Various sections that we need for PE coff support. */
762 static segT ydata_section;
763 static segT pdata_section;
764 static segT reldata_section;
765 static segT rdata_section;
766 static segT tocdata_section;
768 /* The current section and the previous section. See ppc_previous. */
769 static segT ppc_previous_section;
770 static segT ppc_current_section;
775 symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
776 #define PPC_APUINFO_ISEL 0x40
777 #define PPC_APUINFO_PMR 0x41
778 #define PPC_APUINFO_RFMCI 0x42
779 #define PPC_APUINFO_CACHELCK 0x43
780 #define PPC_APUINFO_SPE 0x100
781 #define PPC_APUINFO_EFS 0x101
782 #define PPC_APUINFO_BRLOCK 0x102
785 * We keep a list of APUinfo
787 unsigned long *ppc_apuinfo_list;
788 unsigned int ppc_apuinfo_num;
789 unsigned int ppc_apuinfo_num_alloc;
793 const char *const md_shortopts = "b:l:usm:K:VQ:";
795 const char *const md_shortopts = "um:";
797 const struct option md_longopts[] = {
798 {NULL, no_argument, NULL, 0}
800 const size_t md_longopts_size = sizeof (md_longopts);
803 /* Handle -m options that set cpu type, and .machine arg. */
806 parse_cpu (const char *arg)
808 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
810 if (strcmp (arg, "pwrx") == 0 || strcmp (arg, "pwr2") == 0)
811 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32;
812 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
813 else if (strcmp (arg, "pwr") == 0)
814 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32;
815 /* -m601 means to assemble for the PowerPC 601, which includes
816 instructions that are holdovers from the Power. */
817 else if (strcmp (arg, "601") == 0)
818 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
819 | PPC_OPCODE_601 | PPC_OPCODE_32);
820 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
822 else if (strcmp (arg, "ppc") == 0
823 || strcmp (arg, "ppc32") == 0
824 || strcmp (arg, "603") == 0
825 || strcmp (arg, "604") == 0)
826 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
827 /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */
828 else if (strcmp (arg, "403") == 0
829 || strcmp (arg, "405") == 0)
830 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
831 | PPC_OPCODE_403 | PPC_OPCODE_32);
832 else if (strcmp (arg, "440") == 0)
833 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32
834 | PPC_OPCODE_440 | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI);
835 else if (strcmp (arg, "7400") == 0
836 || strcmp (arg, "7410") == 0
837 || strcmp (arg, "7450") == 0
838 || strcmp (arg, "7455") == 0)
839 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
840 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_32);
841 else if (strcmp (arg, "e300") == 0)
842 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32
844 else if (strcmp (arg, "altivec") == 0)
847 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC;
849 ppc_cpu |= PPC_OPCODE_ALTIVEC;
851 else if (strcmp (arg, "e500") == 0 || strcmp (arg, "e500x2") == 0)
853 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
854 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
855 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
858 else if (strcmp (arg, "spe") == 0)
861 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_SPE | PPC_OPCODE_EFS;
863 ppc_cpu |= PPC_OPCODE_SPE;
865 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
867 else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0)
869 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
871 else if (strcmp (arg, "ppc64bridge") == 0)
873 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
874 | PPC_OPCODE_64_BRIDGE | PPC_OPCODE_64);
876 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
877 else if (strcmp (arg, "booke") == 0 || strcmp (arg, "booke32") == 0)
879 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32;
881 /* -mbooke64 means enable 64-bit BookE support. */
882 else if (strcmp (arg, "booke64") == 0)
884 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE
885 | PPC_OPCODE_BOOKE64 | PPC_OPCODE_64);
887 else if (strcmp (arg, "power4") == 0)
889 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
890 | PPC_OPCODE_64 | PPC_OPCODE_POWER4);
892 else if (strcmp (arg, "power5") == 0)
894 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
895 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
896 | PPC_OPCODE_POWER5);
898 else if (strcmp (arg, "power6") == 0)
900 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
901 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
902 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6);
904 else if (strcmp (arg, "cell") == 0)
906 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
907 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
910 /* -mcom means assemble for the common intersection between Power
911 and PowerPC. At present, we just allow the union, rather
912 than the intersection. */
913 else if (strcmp (arg, "com") == 0)
914 ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32;
915 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
916 else if (strcmp (arg, "any") == 0)
917 ppc_cpu |= PPC_OPCODE_ANY;
925 md_parse_option (int c, char *arg)
930 /* -u means that any undefined symbols should be treated as
931 external, which is the default for gas anyhow. */
936 /* Solaris as takes -le (presumably for little endian). For completeness
937 sake, recognize -be also. */
938 if (strcmp (arg, "e") == 0)
940 target_big_endian = 0;
941 set_target_endian = 1;
949 if (strcmp (arg, "e") == 0)
951 target_big_endian = 1;
952 set_target_endian = 1;
960 /* Recognize -K PIC. */
961 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
964 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
972 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
974 if (strcmp (arg, "64") == 0)
979 as_fatal (_("%s unsupported"), "-a64");
982 else if (strcmp (arg, "32") == 0)
992 else if (strcmp (arg, "regnames") == 0)
995 else if (strcmp (arg, "no-regnames") == 0)
999 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1000 that require relocation. */
1001 else if (strcmp (arg, "relocatable") == 0)
1003 shlib = SHLIB_MRELOCATABLE;
1004 ppc_flags |= EF_PPC_RELOCATABLE;
1007 else if (strcmp (arg, "relocatable-lib") == 0)
1009 shlib = SHLIB_MRELOCATABLE;
1010 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1013 /* -memb, set embedded bit. */
1014 else if (strcmp (arg, "emb") == 0)
1015 ppc_flags |= EF_PPC_EMB;
1017 /* -mlittle/-mbig set the endianess. */
1018 else if (strcmp (arg, "little") == 0
1019 || strcmp (arg, "little-endian") == 0)
1021 target_big_endian = 0;
1022 set_target_endian = 1;
1025 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1027 target_big_endian = 1;
1028 set_target_endian = 1;
1031 else if (strcmp (arg, "solaris") == 0)
1034 ppc_comment_chars = ppc_solaris_comment_chars;
1037 else if (strcmp (arg, "no-solaris") == 0)
1040 ppc_comment_chars = ppc_eabi_comment_chars;
1045 as_bad (_("invalid switch -m%s"), arg);
1051 /* -V: SVR4 argument to print version ID. */
1053 print_version_id ();
1056 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1057 should be emitted or not. FIXME: Not implemented. */
1061 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1062 rather than .stabs.excl, which is ignored by the linker.
1063 FIXME: Not implemented. */
1079 md_show_usage (FILE *stream)
1081 fprintf (stream, _("\
1083 -a32 generate ELF32/XCOFF32\n\
1084 -a64 generate ELF64/XCOFF64\n\
1086 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1087 -mpwr generate code for POWER (RIOS1)\n\
1088 -m601 generate code for PowerPC 601\n\
1089 -mppc, -mppc32, -m603, -m604\n\
1090 generate code for PowerPC 603/604\n\
1091 -m403, -m405 generate code for PowerPC 403/405\n\
1092 -m440 generate code for PowerPC 440\n\
1093 -m7400, -m7410, -m7450, -m7455\n\
1094 generate code For PowerPC 7400/7410/7450/7455\n"));
1095 fprintf (stream, _("\
1096 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1097 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1098 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1099 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1100 -mpower4 generate code for Power4 architecture\n\
1101 -mpower5 generate code for Power5 architecture\n\
1102 -mpower6 generate code for Power6 architecture\n\
1103 -mcell generate code for Cell Broadband Engine architecture\n\
1104 -mcom generate code Power/PowerPC common instructions\n\
1105 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1106 fprintf (stream, _("\
1107 -maltivec generate code for AltiVec\n\
1108 -me300 generate code for PowerPC e300 family\n\
1109 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1110 -mspe generate code for Motorola SPE instructions\n\
1111 -mregnames Allow symbolic names for registers\n\
1112 -mno-regnames Do not allow symbolic names for registers\n"));
1114 fprintf (stream, _("\
1115 -mrelocatable support for GCC's -mrelocatble option\n\
1116 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1117 -memb set PPC_EMB bit in ELF flags\n\
1118 -mlittle, -mlittle-endian, -l, -le\n\
1119 generate code for a little endian machine\n\
1120 -mbig, -mbig-endian, -b, -be\n\
1121 generate code for a big endian machine\n\
1122 -msolaris generate code for Solaris\n\
1123 -mno-solaris do not generate code for Solaris\n\
1124 -V print assembler version number\n\
1125 -Qy, -Qn ignored\n"));
1129 /* Set ppc_cpu if it is not already set. */
1134 const char *default_os = TARGET_OS;
1135 const char *default_cpu = TARGET_CPU;
1137 if ((ppc_cpu & ~PPC_OPCODE_ANY) == 0)
1140 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1141 else if (strncmp (default_os, "aix", 3) == 0
1142 && default_os[3] >= '4' && default_os[3] <= '9')
1143 ppc_cpu |= PPC_OPCODE_COMMON | PPC_OPCODE_32;
1144 else if (strncmp (default_os, "aix3", 4) == 0)
1145 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1146 else if (strcmp (default_cpu, "rs6000") == 0)
1147 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1148 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1149 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
1151 as_fatal (_("Unknown default cpu = %s, os = %s"),
1152 default_cpu, default_os);
1156 /* Figure out the BFD architecture to use. This function and ppc_mach
1157 are called well before md_begin, when the output file is opened. */
1159 enum bfd_architecture
1162 const char *default_cpu = TARGET_CPU;
1165 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1166 return bfd_arch_powerpc;
1167 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1168 return bfd_arch_rs6000;
1169 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1171 if (strcmp (default_cpu, "rs6000") == 0)
1172 return bfd_arch_rs6000;
1173 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1174 return bfd_arch_powerpc;
1177 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1178 return bfd_arch_unknown;
1185 return bfd_mach_ppc64;
1186 else if (ppc_arch () == bfd_arch_rs6000)
1187 return bfd_mach_rs6k;
1189 return bfd_mach_ppc;
1193 ppc_target_format (void)
1197 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1199 return "xcoff-powermac";
1202 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1204 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1210 return "elf32-powerpc-vxworks";
1212 return (target_big_endian
1213 ? (ppc_obj64 ? "elf64-powerpc-freebsd" : "elf32-powerpc-freebsd")
1214 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1219 /* Insert opcodes and macros into hash tables. Called at startup and
1223 ppc_setup_opcodes (void)
1225 const struct powerpc_opcode *op;
1226 const struct powerpc_opcode *op_end;
1227 const struct powerpc_macro *macro;
1228 const struct powerpc_macro *macro_end;
1229 bfd_boolean bad_insn = FALSE;
1231 if (ppc_hash != NULL)
1232 hash_die (ppc_hash);
1233 if (ppc_macro_hash != NULL)
1234 hash_die (ppc_macro_hash);
1236 /* Insert the opcodes into a hash table. */
1237 ppc_hash = hash_new ();
1239 if (ENABLE_CHECKING)
1243 /* Check operand masks. Code here and in the disassembler assumes
1244 all the 1's in the mask are contiguous. */
1245 for (i = 0; i < num_powerpc_operands; ++i)
1247 unsigned long mask = powerpc_operands[i].bitm;
1248 unsigned long right_bit;
1251 right_bit = mask & -mask;
1253 right_bit = mask & -mask;
1254 if (mask != right_bit)
1256 as_bad (_("powerpc_operands[%d].bitm invalid"), i);
1259 for (j = i + 1; j < num_powerpc_operands; ++j)
1260 if (memcmp (&powerpc_operands[i], &powerpc_operands[j],
1261 sizeof (powerpc_operands[0])) == 0)
1263 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1270 op_end = powerpc_opcodes + powerpc_num_opcodes;
1271 for (op = powerpc_opcodes; op < op_end; op++)
1273 if (ENABLE_CHECKING)
1275 const unsigned char *o;
1276 unsigned long omask = op->mask;
1278 /* The mask had better not trim off opcode bits. */
1279 if ((op->opcode & omask) != op->opcode)
1281 as_bad (_("mask trims opcode bits for %s"),
1286 /* The operands must not overlap the opcode or each other. */
1287 for (o = op->operands; *o; ++o)
1288 if (*o >= num_powerpc_operands)
1290 as_bad (_("operand index error for %s"),
1296 const struct powerpc_operand *operand = &powerpc_operands[*o];
1297 if (operand->shift >= 0)
1299 unsigned long mask = operand->bitm << operand->shift;
1302 as_bad (_("operand %d overlap in %s"),
1303 (int) (o - op->operands), op->name);
1311 if ((op->flags & ppc_cpu & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) != 0
1312 && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
1313 || ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64))
1314 == (ppc_cpu & (PPC_OPCODE_32 | PPC_OPCODE_64)))
1315 || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0)
1316 /* Certain instructions (eg: extsw) do not exist in the
1317 32-bit BookE instruction set, but they do exist in the
1318 64-bit BookE instruction set, and other PPC instruction
1319 sets. Check to see if the opcode has the BOOKE64 flag set.
1320 If it does make sure that the target CPU is not the BookE32. */
1321 && ((op->flags & PPC_OPCODE_BOOKE64) == 0
1322 || (ppc_cpu & PPC_OPCODE_BOOKE64) == PPC_OPCODE_BOOKE64
1323 || (ppc_cpu & PPC_OPCODE_BOOKE) == 0)
1324 && ((op->flags & (PPC_OPCODE_POWER4 | PPC_OPCODE_NOPOWER4)) == 0
1325 || ((op->flags & PPC_OPCODE_POWER4)
1326 == (ppc_cpu & PPC_OPCODE_POWER4)))
1327 && ((op->flags & PPC_OPCODE_POWER5) == 0
1328 || ((op->flags & PPC_OPCODE_POWER5)
1329 == (ppc_cpu & PPC_OPCODE_POWER5)))
1330 && ((op->flags & PPC_OPCODE_POWER6) == 0
1331 || ((op->flags & PPC_OPCODE_POWER6)
1332 == (ppc_cpu & PPC_OPCODE_POWER6))))
1336 retval = hash_insert (ppc_hash, op->name, (void *) op);
1339 /* Ignore Power duplicates for -m601. */
1340 if ((ppc_cpu & PPC_OPCODE_601) != 0
1341 && (op->flags & PPC_OPCODE_POWER) != 0)
1344 as_bad (_("duplicate instruction %s"),
1351 if ((ppc_cpu & PPC_OPCODE_ANY) != 0)
1352 for (op = powerpc_opcodes; op < op_end; op++)
1353 hash_insert (ppc_hash, op->name, (void *) op);
1355 /* Insert the macros into a hash table. */
1356 ppc_macro_hash = hash_new ();
1358 macro_end = powerpc_macros + powerpc_num_macros;
1359 for (macro = powerpc_macros; macro < macro_end; macro++)
1361 if ((macro->flags & ppc_cpu) != 0)
1365 retval = hash_insert (ppc_macro_hash, macro->name, (void *) macro);
1366 if (retval != (const char *) NULL)
1368 as_bad (_("duplicate macro %s"), macro->name);
1378 /* This function is called when the assembler starts up. It is called
1379 after the options have been parsed and the output file has been
1387 ppc_cie_data_alignment = ppc_obj64 ? -8 : -4;
1390 /* Set the ELF flags if desired. */
1391 if (ppc_flags && !msolaris)
1392 bfd_set_private_flags (stdoutput, ppc_flags);
1395 ppc_setup_opcodes ();
1397 /* Tell the main code what the endianness is if it is not overridden
1399 if (!set_target_endian)
1401 set_target_endian = 1;
1402 target_big_endian = PPC_BIG_ENDIAN;
1406 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1408 /* Create dummy symbols to serve as initial csects. This forces the
1409 text csects to precede the data csects. These symbols will not
1411 ppc_text_csects = symbol_make ("dummy\001");
1412 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1413 ppc_data_csects = symbol_make ("dummy\001");
1414 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1419 ppc_current_section = text_section;
1420 ppc_previous_section = 0;
1429 if (ppc_apuinfo_list == NULL)
1432 /* Ok, so write the section info out. We have this layout:
1436 0 8 length of "APUinfo\0"
1437 4 (n*4) number of APU's (4 bytes each)
1440 20 APU#1 first APU's info
1441 24 APU#2 second APU's info
1446 asection *seg = now_seg;
1447 subsegT subseg = now_subseg;
1448 asection *apuinfo_secp = (asection *) NULL;
1451 /* Create the .PPC.EMB.apuinfo section. */
1452 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1453 bfd_set_section_flags (stdoutput,
1455 SEC_HAS_CONTENTS | SEC_READONLY);
1458 md_number_to_chars (p, (valueT) 8, 4);
1461 md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4);
1464 md_number_to_chars (p, (valueT) 2, 4);
1467 strcpy (p, "APUinfo");
1469 for (i = 0; i < ppc_apuinfo_num; i++)
1472 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1475 frag_align (2, 0, 0);
1477 /* We probably can't restore the current segment, for there likely
1480 subseg_set (seg, subseg);
1485 /* Insert an operand value into an instruction. */
1487 static unsigned long
1488 ppc_insert_operand (unsigned long insn,
1489 const struct powerpc_operand *operand,
1494 long min, max, right;
1496 max = operand->bitm;
1500 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1502 if ((operand->flags & PPC_OPERAND_SIGNOPT) == 0)
1503 max = (max >> 1) & -right;
1504 min = ~max & -right;
1507 if ((operand->flags & PPC_OPERAND_PLUS1) != 0)
1510 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1519 /* Some people write constants with the sign extension done by
1520 hand but only up to 32 bits. This shouldn't really be valid,
1521 but, to permit this code to assemble on a 64-bit host, we
1522 sign extend the 32-bit value to 64 bits if so doing makes the
1525 && (offsetT) (val - 0x80000000 - 0x80000000) >= min
1526 && (offsetT) (val - 0x80000000 - 0x80000000) <= max
1527 && ((val - 0x80000000 - 0x80000000) & (right - 1)) == 0)
1528 val = val - 0x80000000 - 0x80000000;
1530 /* Similarly, people write expressions like ~(1<<15), and expect
1531 this to be OK for a 32-bit unsigned value. */
1533 && (offsetT) (val + 0x80000000 + 0x80000000) >= min
1534 && (offsetT) (val + 0x80000000 + 0x80000000) <= max
1535 && ((val + 0x80000000 + 0x80000000) & (right - 1)) == 0)
1536 val = val + 0x80000000 + 0x80000000;
1540 || (val & (right - 1)) != 0)
1541 as_bad_value_out_of_range (_("operand"), val, min, max, file, line);
1544 if (operand->insert)
1549 insn = (*operand->insert) (insn, (long) val, ppc_cpu, &errmsg);
1550 if (errmsg != (const char *) NULL)
1551 as_bad_where (file, line, "%s", errmsg);
1554 insn |= ((long) val & operand->bitm) << operand->shift;
1561 /* Parse @got, etc. and return the desired relocation. */
1562 static bfd_reloc_code_real_type
1563 ppc_elf_suffix (char **str_p, expressionS *exp_p)
1567 unsigned int length : 8;
1568 unsigned int valid32 : 1;
1569 unsigned int valid64 : 1;
1578 const struct map_bfd *ptr;
1580 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1581 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1582 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1584 static const struct map_bfd mapping[] = {
1585 MAP ("l", BFD_RELOC_LO16),
1586 MAP ("h", BFD_RELOC_HI16),
1587 MAP ("ha", BFD_RELOC_HI16_S),
1588 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1589 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1590 MAP ("got", BFD_RELOC_16_GOTOFF),
1591 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1592 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1593 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1594 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1595 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1596 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1597 MAP ("copy", BFD_RELOC_PPC_COPY),
1598 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1599 MAP ("sectoff", BFD_RELOC_16_BASEREL),
1600 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1601 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1602 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1603 MAP ("tls", BFD_RELOC_PPC_TLS),
1604 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD),
1605 MAP ("dtprel", BFD_RELOC_PPC_DTPREL),
1606 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO),
1607 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI),
1608 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA),
1609 MAP ("tprel", BFD_RELOC_PPC_TPREL),
1610 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO),
1611 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI),
1612 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA),
1613 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16),
1614 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO),
1615 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI),
1616 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA),
1617 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16),
1618 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO),
1619 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI),
1620 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA),
1621 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16),
1622 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO),
1623 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI),
1624 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA),
1625 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16),
1626 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO),
1627 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI),
1628 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA),
1629 MAP32 ("fixup", BFD_RELOC_CTOR),
1630 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL),
1631 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1632 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1633 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC),
1634 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL),
1635 MAP32 ("sdarel", BFD_RELOC_GPREL16),
1636 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1637 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1638 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1639 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1640 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1641 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1642 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1643 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1644 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1645 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1646 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1647 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1648 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1649 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1650 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1651 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1652 MAP32 ("xgot", BFD_RELOC_PPC_TOC16),
1653 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER),
1654 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S),
1655 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST),
1656 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1657 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC),
1658 MAP64 ("toc", BFD_RELOC_PPC_TOC16),
1659 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1660 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1661 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1662 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER),
1663 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1664 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1665 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1666 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
1667 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA),
1668 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST),
1669 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1670 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED }
1674 return BFD_RELOC_UNUSED;
1676 for (ch = *str, str2 = ident;
1677 (str2 < ident + sizeof (ident) - 1
1678 && (ISALNUM (ch) || ch == '@'));
1681 *str2++ = TOLOWER (ch);
1688 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1689 if (ch == ptr->string[0]
1690 && len == ptr->length
1691 && memcmp (ident, ptr->string, ptr->length) == 0
1692 && (ppc_obj64 ? ptr->valid64 : ptr->valid32))
1694 int reloc = ptr->reloc;
1697 if (exp_p->X_add_number != 0
1698 && (reloc == (int) BFD_RELOC_16_GOTOFF
1699 || reloc == (int) BFD_RELOC_LO16_GOTOFF
1700 || reloc == (int) BFD_RELOC_HI16_GOTOFF
1701 || reloc == (int) BFD_RELOC_HI16_S_GOTOFF))
1702 as_warn (_("identifier+constant@got means identifier@got+constant"));
1704 /* Now check for identifier@suffix+constant. */
1705 if (*str == '-' || *str == '+')
1707 char *orig_line = input_line_pointer;
1708 expressionS new_exp;
1710 input_line_pointer = str;
1711 expression (&new_exp);
1712 if (new_exp.X_op == O_constant)
1714 exp_p->X_add_number += new_exp.X_add_number;
1715 str = input_line_pointer;
1718 if (&input_line_pointer != str_p)
1719 input_line_pointer = orig_line;
1723 if (reloc == (int) BFD_RELOC_PPC64_TOC
1724 && exp_p->X_op == O_symbol
1725 && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0)
1727 /* Change the symbol so that the dummy .TOC. symbol can be
1728 omitted from the object file. */
1729 exp_p->X_add_symbol = &abs_symbol;
1732 return (bfd_reloc_code_real_type) reloc;
1735 return BFD_RELOC_UNUSED;
1738 /* Like normal .long/.short/.word, except support @got, etc.
1739 Clobbers input_line_pointer, checks end-of-line. */
1741 ppc_elf_cons (int nbytes /* 1=.byte, 2=.word, 4=.long, 8=.llong */)
1744 bfd_reloc_code_real_type reloc;
1746 if (is_it_end_of_statement ())
1748 demand_empty_rest_of_line ();
1755 if (exp.X_op == O_symbol
1756 && *input_line_pointer == '@'
1757 && (reloc = ppc_elf_suffix (&input_line_pointer,
1758 &exp)) != BFD_RELOC_UNUSED)
1760 reloc_howto_type *reloc_howto;
1763 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1764 size = bfd_get_reloc_size (reloc_howto);
1768 as_bad (_("%s relocations do not fit in %d bytes\n"),
1769 reloc_howto->name, nbytes);
1776 p = frag_more (nbytes);
1778 if (target_big_endian)
1779 offset = nbytes - size;
1780 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
1785 emit_expr (&exp, (unsigned int) nbytes);
1787 while (*input_line_pointer++ == ',');
1789 /* Put terminator back into stream. */
1790 input_line_pointer--;
1791 demand_empty_rest_of_line ();
1794 /* Solaris pseduo op to change to the .rodata section. */
1796 ppc_elf_rdata (int xxx)
1798 char *save_line = input_line_pointer;
1799 static char section[] = ".rodata\n";
1801 /* Just pretend this is .section .rodata */
1802 input_line_pointer = section;
1803 obj_elf_section (xxx);
1805 input_line_pointer = save_line;
1808 /* Pseudo op to make file scope bss items. */
1810 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED)
1823 name = input_line_pointer;
1824 c = get_symbol_end ();
1826 /* just after name is now '\0'. */
1827 p = input_line_pointer;
1830 if (*input_line_pointer != ',')
1832 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1833 ignore_rest_of_line ();
1837 input_line_pointer++; /* skip ',' */
1838 if ((size = get_absolute_expression ()) < 0)
1840 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
1841 ignore_rest_of_line ();
1845 /* The third argument to .lcomm is the alignment. */
1846 if (*input_line_pointer != ',')
1850 ++input_line_pointer;
1851 align = get_absolute_expression ();
1854 as_warn (_("ignoring bad alignment"));
1860 symbolP = symbol_find_or_make (name);
1863 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
1865 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1866 S_GET_NAME (symbolP));
1867 ignore_rest_of_line ();
1871 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
1873 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1874 S_GET_NAME (symbolP),
1875 (long) S_GET_VALUE (symbolP),
1878 ignore_rest_of_line ();
1884 old_subsec = now_subseg;
1887 /* Convert to a power of 2 alignment. */
1888 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
1891 as_bad (_("Common alignment not a power of 2"));
1892 ignore_rest_of_line ();
1899 record_alignment (bss_section, align2);
1900 subseg_set (bss_section, 0);
1902 frag_align (align2, 0, 0);
1903 if (S_GET_SEGMENT (symbolP) == bss_section)
1904 symbol_get_frag (symbolP)->fr_symbol = 0;
1905 symbol_set_frag (symbolP, frag_now);
1906 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
1909 S_SET_SIZE (symbolP, size);
1910 S_SET_SEGMENT (symbolP, bss_section);
1911 subseg_set (old_sec, old_subsec);
1912 demand_empty_rest_of_line ();
1915 /* Validate any relocations emitted for -mrelocatable, possibly adding
1916 fixups for word relocations in writable segments, so we can adjust
1919 ppc_elf_validate_fix (fixS *fixp, segT seg)
1921 if (fixp->fx_done || fixp->fx_pcrel)
1930 case SHLIB_MRELOCATABLE:
1931 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
1932 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
1933 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
1934 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
1935 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
1936 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
1937 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
1938 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
1939 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
1940 && (seg->flags & SEC_LOAD) != 0
1941 && strcmp (segment_name (seg), ".got2") != 0
1942 && strcmp (segment_name (seg), ".dtors") != 0
1943 && strcmp (segment_name (seg), ".ctors") != 0
1944 && strcmp (segment_name (seg), ".fixup") != 0
1945 && strcmp (segment_name (seg), ".gcc_except_table") != 0
1946 && strcmp (segment_name (seg), ".eh_frame") != 0
1947 && strcmp (segment_name (seg), ".ex_shared") != 0)
1949 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
1950 || fixp->fx_r_type != BFD_RELOC_CTOR)
1952 as_bad_where (fixp->fx_file, fixp->fx_line,
1953 _("Relocation cannot be done when using -mrelocatable"));
1960 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1961 function descriptor sym if the corresponding code sym is used. */
1964 ppc_frob_file_before_adjust (void)
1972 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
1979 name = S_GET_NAME (symp);
1983 if (! S_IS_WEAK (symp)
1984 || S_IS_DEFINED (symp))
1987 len = strlen (name) + 1;
1988 dotname = xmalloc (len + 1);
1990 memcpy (dotname + 1, name, len);
1991 dotsym = symbol_find_noref (dotname, 1);
1993 if (dotsym != NULL && (symbol_used_p (dotsym)
1994 || symbol_used_in_reloc_p (dotsym)))
1995 symbol_mark_used (symp);
1999 toc = bfd_get_section_by_name (stdoutput, ".toc");
2001 && bfd_section_size (stdoutput, toc) > 0x10000)
2002 as_warn (_("TOC section size exceeds 64k"));
2004 /* Don't emit .TOC. symbol. */
2005 symp = symbol_find (".TOC.");
2007 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
2009 #endif /* OBJ_ELF */
2014 * Summary of parse_toc_entry.
2016 * in: Input_line_pointer points to the '[' in one of:
2018 * [toc] [tocv] [toc32] [toc64]
2020 * Anything else is an error of one kind or another.
2023 * return value: success or failure
2024 * toc_kind: kind of toc reference
2025 * input_line_pointer:
2026 * success: first char after the ']'
2027 * failure: unchanged
2031 * [toc] - rv == success, toc_kind = default_toc
2032 * [tocv] - rv == success, toc_kind = data_in_toc
2033 * [toc32] - rv == success, toc_kind = must_be_32
2034 * [toc64] - rv == success, toc_kind = must_be_64
2038 enum toc_size_qualifier
2040 default_toc, /* The toc cell constructed should be the system default size */
2041 data_in_toc, /* This is a direct reference to a toc cell */
2042 must_be_32, /* The toc cell constructed must be 32 bits wide */
2043 must_be_64 /* The toc cell constructed must be 64 bits wide */
2047 parse_toc_entry (enum toc_size_qualifier *toc_kind)
2052 enum toc_size_qualifier t;
2054 /* Save the input_line_pointer. */
2055 start = input_line_pointer;
2057 /* Skip over the '[' , and whitespace. */
2058 ++input_line_pointer;
2061 /* Find the spelling of the operand. */
2062 toc_spec = input_line_pointer;
2063 c = get_symbol_end ();
2065 if (strcmp (toc_spec, "toc") == 0)
2069 else if (strcmp (toc_spec, "tocv") == 0)
2073 else if (strcmp (toc_spec, "toc32") == 0)
2077 else if (strcmp (toc_spec, "toc64") == 0)
2083 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
2084 *input_line_pointer = c;
2085 input_line_pointer = start;
2089 /* Now find the ']'. */
2090 *input_line_pointer = c;
2092 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2093 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
2097 as_bad (_("syntax error: expected `]', found `%c'"), c);
2098 input_line_pointer = start;
2109 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2111 ppc_apuinfo_section_add (unsigned int apu, unsigned int version)
2115 /* Check we don't already exist. */
2116 for (i = 0; i < ppc_apuinfo_num; i++)
2117 if (ppc_apuinfo_list[i] == APUID (apu, version))
2120 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2122 if (ppc_apuinfo_num_alloc == 0)
2124 ppc_apuinfo_num_alloc = 4;
2125 ppc_apuinfo_list = (unsigned long *)
2126 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2130 ppc_apuinfo_num_alloc += 4;
2131 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2132 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2135 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2141 /* We need to keep a list of fixups. We can't simply generate them as
2142 we go, because that would require us to first create the frag, and
2143 that would screw up references to ``.''. */
2149 bfd_reloc_code_real_type reloc;
2152 #define MAX_INSN_FIXUPS (5)
2154 /* This routine is called for each instruction to be assembled. */
2157 md_assemble (char *str)
2160 const struct powerpc_opcode *opcode;
2162 const unsigned char *opindex_ptr;
2166 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2172 bfd_reloc_code_real_type reloc;
2175 /* Get the opcode. */
2176 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2181 /* Look up the opcode in the hash table. */
2182 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2183 if (opcode == (const struct powerpc_opcode *) NULL)
2185 const struct powerpc_macro *macro;
2187 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2188 if (macro == (const struct powerpc_macro *) NULL)
2189 as_bad (_("Unrecognized opcode: `%s'"), str);
2191 ppc_macro (s, macro);
2196 insn = opcode->opcode;
2199 while (ISSPACE (*str))
2202 /* PowerPC operands are just expressions. The only real issue is
2203 that a few operand types are optional. All cases which might use
2204 an optional operand separate the operands only with commas (in some
2205 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2206 have optional operands). Most instructions with optional operands
2207 have only one. Those that have more than one optional operand can
2208 take either all their operands or none. So, before we start seriously
2209 parsing the operands, we check to see if we have optional operands,
2210 and if we do, we count the number of commas to see which operands
2211 have been omitted. */
2213 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2215 const struct powerpc_operand *operand;
2217 operand = &powerpc_operands[*opindex_ptr];
2218 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2220 unsigned int opcount;
2221 unsigned int num_operands_expected;
2224 /* There is an optional operand. Count the number of
2225 commas in the input line. */
2232 while ((s = strchr (s, ',')) != (char *) NULL)
2239 /* Compute the number of expected operands.
2240 Do not count fake operands. */
2241 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2242 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2243 ++ num_operands_expected;
2245 /* If there are fewer operands in the line then are called
2246 for by the instruction, we want to skip the optional
2248 if (opcount < num_operands_expected)
2255 /* Gather the operands. */
2259 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2261 const struct powerpc_operand *operand;
2267 if (next_opindex == 0)
2268 operand = &powerpc_operands[*opindex_ptr];
2271 operand = &powerpc_operands[next_opindex];
2276 /* If this is a fake operand, then we do not expect anything
2278 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2280 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2281 if (errmsg != (const char *) NULL)
2282 as_bad ("%s", errmsg);
2286 /* If this is an optional operand, and we are skipping it, just
2288 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2291 if (operand->insert)
2293 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2294 if (errmsg != (const char *) NULL)
2295 as_bad ("%s", errmsg);
2297 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2298 next_opindex = *opindex_ptr + 1;
2302 /* Gather the operand. */
2303 hold = input_line_pointer;
2304 input_line_pointer = str;
2307 if (*input_line_pointer == '[')
2309 /* We are expecting something like the second argument here:
2311 * lwz r4,[toc].GS.0.static_int(rtoc)
2312 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2313 * The argument following the `]' must be a symbol name, and the
2314 * register must be the toc register: 'rtoc' or '2'
2316 * The effect is to 0 as the displacement field
2317 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2318 * the appropriate variation) reloc against it based on the symbol.
2319 * The linker will build the toc, and insert the resolved toc offset.
2322 * o The size of the toc entry is currently assumed to be
2323 * 32 bits. This should not be assumed to be a hard coded
2325 * o In an effort to cope with a change from 32 to 64 bits,
2326 * there are also toc entries that are specified to be
2327 * either 32 or 64 bits:
2328 * lwz r4,[toc32].GS.0.static_int(rtoc)
2329 * lwz r4,[toc64].GS.0.static_int(rtoc)
2330 * These demand toc entries of the specified size, and the
2331 * instruction probably requires it.
2335 enum toc_size_qualifier toc_kind;
2336 bfd_reloc_code_real_type toc_reloc;
2338 /* Go parse off the [tocXX] part. */
2339 valid_toc = parse_toc_entry (&toc_kind);
2343 /* Note: message has already been issued.
2344 FIXME: what sort of recovery should we do?
2345 demand_rest_of_line (); return; ? */
2348 /* Now get the symbol following the ']'. */
2354 /* In this case, we may not have seen the symbol yet,
2355 since it is allowed to appear on a .extern or .globl
2356 or just be a label in the .data section. */
2357 toc_reloc = BFD_RELOC_PPC_TOC16;
2360 /* 1. The symbol must be defined and either in the toc
2361 section, or a global.
2362 2. The reloc generated must have the TOCDEFN flag set
2363 in upper bit mess of the reloc type.
2364 FIXME: It's a little confusing what the tocv
2365 qualifier can be used for. At the very least, I've
2366 seen three uses, only one of which I'm sure I can
2368 if (ex.X_op == O_symbol)
2370 assert (ex.X_add_symbol != NULL);
2371 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2374 as_bad (_("[tocv] symbol is not a toc symbol"));
2378 toc_reloc = BFD_RELOC_PPC_TOC16;
2381 /* FIXME: these next two specifically specify 32/64 bit
2382 toc entries. We don't support them today. Is this
2383 the right way to say that? */
2384 toc_reloc = BFD_RELOC_UNUSED;
2385 as_bad (_("Unimplemented toc32 expression modifier"));
2388 /* FIXME: see above. */
2389 toc_reloc = BFD_RELOC_UNUSED;
2390 as_bad (_("Unimplemented toc64 expression modifier"));
2394 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2400 /* We need to generate a fixup for this expression. */
2401 if (fc >= MAX_INSN_FIXUPS)
2402 as_fatal (_("too many fixups"));
2404 fixups[fc].reloc = toc_reloc;
2405 fixups[fc].exp = ex;
2406 fixups[fc].opindex = *opindex_ptr;
2409 /* Ok. We've set up the fixup for the instruction. Now make it
2410 look like the constant 0 was found here. */
2412 ex.X_op = O_constant;
2413 ex.X_add_number = 0;
2414 ex.X_add_symbol = NULL;
2415 ex.X_op_symbol = NULL;
2421 if (! register_name (&ex))
2423 if ((operand->flags & PPC_OPERAND_CR) != 0)
2430 str = input_line_pointer;
2431 input_line_pointer = hold;
2433 if (ex.X_op == O_illegal)
2434 as_bad (_("illegal operand"));
2435 else if (ex.X_op == O_absent)
2436 as_bad (_("missing operand"));
2437 else if (ex.X_op == O_register)
2439 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2442 else if (ex.X_op == O_constant)
2445 /* Allow @HA, @L, @H on constants. */
2446 char *orig_str = str;
2448 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2455 case BFD_RELOC_LO16:
2456 /* X_unsigned is the default, so if the user has done
2457 something which cleared it, we always produce a
2459 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2460 ex.X_add_number &= 0xffff;
2462 ex.X_add_number = SEX16 (ex.X_add_number);
2465 case BFD_RELOC_HI16:
2466 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2467 ex.X_add_number = PPC_HI (ex.X_add_number);
2469 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
2472 case BFD_RELOC_HI16_S:
2473 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2474 ex.X_add_number = PPC_HA (ex.X_add_number);
2476 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2479 case BFD_RELOC_PPC64_HIGHER:
2480 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2481 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2483 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2486 case BFD_RELOC_PPC64_HIGHER_S:
2487 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2488 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2490 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
2493 case BFD_RELOC_PPC64_HIGHEST:
2494 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2495 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2497 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2500 case BFD_RELOC_PPC64_HIGHEST_S:
2501 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2502 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2504 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2507 #endif /* OBJ_ELF */
2508 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2514 if (ex.X_op == O_symbol && str[0] == '(')
2516 const char *sym_name = S_GET_NAME (ex.X_add_symbol);
2517 if (sym_name[0] == '.')
2520 if (strcasecmp (sym_name, "__tls_get_addr") == 0)
2522 expressionS tls_exp;
2524 hold = input_line_pointer;
2525 input_line_pointer = str + 1;
2526 expression (&tls_exp);
2527 if (tls_exp.X_op == O_symbol)
2529 reloc = BFD_RELOC_UNUSED;
2530 if (strncasecmp (input_line_pointer, "@tlsgd)", 7) == 0)
2532 reloc = BFD_RELOC_PPC_TLSGD;
2533 input_line_pointer += 7;
2535 else if (strncasecmp (input_line_pointer, "@tlsld)", 7) == 0)
2537 reloc = BFD_RELOC_PPC_TLSLD;
2538 input_line_pointer += 7;
2540 if (reloc != BFD_RELOC_UNUSED)
2543 str = input_line_pointer;
2545 if (fc >= MAX_INSN_FIXUPS)
2546 as_fatal (_("too many fixups"));
2547 fixups[fc].exp = tls_exp;
2548 fixups[fc].opindex = *opindex_ptr;
2549 fixups[fc].reloc = reloc;
2553 input_line_pointer = hold;
2557 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2559 /* Some TLS tweaks. */
2565 case BFD_RELOC_PPC_TLS:
2566 insn = ppc_insert_operand (insn, operand, ppc_obj64 ? 13 : 2,
2570 /* We'll only use the 32 (or 64) bit form of these relocations
2571 in constants. Instructions get the 16 bit form. */
2572 case BFD_RELOC_PPC_DTPREL:
2573 reloc = BFD_RELOC_PPC_DTPREL16;
2575 case BFD_RELOC_PPC_TPREL:
2576 reloc = BFD_RELOC_PPC_TPREL16;
2580 /* For the absolute forms of branches, convert the PC
2581 relative form back into the absolute. */
2582 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2586 case BFD_RELOC_PPC_B26:
2587 reloc = BFD_RELOC_PPC_BA26;
2589 case BFD_RELOC_PPC_B16:
2590 reloc = BFD_RELOC_PPC_BA16;
2592 case BFD_RELOC_PPC_B16_BRTAKEN:
2593 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2595 case BFD_RELOC_PPC_B16_BRNTAKEN:
2596 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2604 && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
2609 reloc = BFD_RELOC_PPC64_ADDR16_DS;
2611 case BFD_RELOC_LO16:
2612 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
2614 case BFD_RELOC_16_GOTOFF:
2615 reloc = BFD_RELOC_PPC64_GOT16_DS;
2617 case BFD_RELOC_LO16_GOTOFF:
2618 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
2620 case BFD_RELOC_LO16_PLTOFF:
2621 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
2623 case BFD_RELOC_16_BASEREL:
2624 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
2626 case BFD_RELOC_LO16_BASEREL:
2627 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
2629 case BFD_RELOC_PPC_TOC16:
2630 reloc = BFD_RELOC_PPC64_TOC16_DS;
2632 case BFD_RELOC_PPC64_TOC16_LO:
2633 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
2635 case BFD_RELOC_PPC64_PLTGOT16:
2636 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
2638 case BFD_RELOC_PPC64_PLTGOT16_LO:
2639 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
2641 case BFD_RELOC_PPC_DTPREL16:
2642 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
2644 case BFD_RELOC_PPC_DTPREL16_LO:
2645 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
2647 case BFD_RELOC_PPC_TPREL16:
2648 reloc = BFD_RELOC_PPC64_TPREL16_DS;
2650 case BFD_RELOC_PPC_TPREL16_LO:
2651 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
2653 case BFD_RELOC_PPC_GOT_DTPREL16:
2654 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2655 case BFD_RELOC_PPC_GOT_TPREL16:
2656 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2659 as_bad (_("unsupported relocation for DS offset field"));
2665 /* We need to generate a fixup for this expression. */
2666 if (fc >= MAX_INSN_FIXUPS)
2667 as_fatal (_("too many fixups"));
2668 fixups[fc].exp = ex;
2669 fixups[fc].opindex = *opindex_ptr;
2670 fixups[fc].reloc = reloc;
2676 /* We need to generate a fixup for this expression. */
2677 if (fc >= MAX_INSN_FIXUPS)
2678 as_fatal (_("too many fixups"));
2679 fixups[fc].exp = ex;
2680 fixups[fc].opindex = *opindex_ptr;
2681 fixups[fc].reloc = BFD_RELOC_UNUSED;
2684 #endif /* OBJ_ELF */
2691 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
2699 /* The call to expression should have advanced str past any
2702 && (endc != ',' || *str != '\0'))
2704 as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc);
2712 while (ISSPACE (*str))
2716 as_bad (_("junk at end of line: `%s'"), str);
2719 /* Do we need/want a APUinfo section? */
2720 if (ppc_cpu & (PPC_OPCODE_SPE
2721 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS
2722 | PPC_OPCODE_BRLOCK | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
2723 | PPC_OPCODE_RFMCI))
2725 /* These are all version "1". */
2726 if (opcode->flags & PPC_OPCODE_SPE)
2727 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
2728 if (opcode->flags & PPC_OPCODE_ISEL)
2729 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
2730 if (opcode->flags & PPC_OPCODE_EFS)
2731 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
2732 if (opcode->flags & PPC_OPCODE_BRLOCK)
2733 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
2734 if (opcode->flags & PPC_OPCODE_PMR)
2735 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
2736 if (opcode->flags & PPC_OPCODE_CACHELCK)
2737 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
2738 if (opcode->flags & PPC_OPCODE_RFMCI)
2739 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
2743 /* Write out the instruction. */
2745 addr_mod = frag_now_fix () & 3;
2746 if (frag_now->has_code && frag_now->insn_addr != addr_mod)
2747 as_bad (_("instruction address is not a multiple of 4"));
2748 frag_now->insn_addr = addr_mod;
2749 frag_now->has_code = 1;
2750 md_number_to_chars (f, insn, 4);
2753 dwarf2_emit_insn (4);
2756 /* Create any fixups. At this point we do not use a
2757 bfd_reloc_code_real_type, but instead just use the
2758 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2759 handle fixups for any operand type, although that is admittedly
2760 not a very exciting feature. We pick a BFD reloc type in
2762 for (i = 0; i < fc; i++)
2764 const struct powerpc_operand *operand;
2766 operand = &powerpc_operands[fixups[i].opindex];
2767 if (fixups[i].reloc != BFD_RELOC_UNUSED)
2769 reloc_howto_type *reloc_howto;
2774 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
2778 size = bfd_get_reloc_size (reloc_howto);
2779 offset = target_big_endian ? (4 - size) : 0;
2781 if (size < 1 || size > 4)
2784 fixP = fix_new_exp (frag_now,
2785 f - frag_now->fr_literal + offset,
2788 reloc_howto->pc_relative,
2791 /* Turn off complaints that the addend is too large for things like
2793 switch (fixups[i].reloc)
2795 case BFD_RELOC_16_GOTOFF:
2796 case BFD_RELOC_PPC_TOC16:
2797 case BFD_RELOC_LO16:
2798 case BFD_RELOC_HI16:
2799 case BFD_RELOC_HI16_S:
2801 case BFD_RELOC_PPC64_HIGHER:
2802 case BFD_RELOC_PPC64_HIGHER_S:
2803 case BFD_RELOC_PPC64_HIGHEST:
2804 case BFD_RELOC_PPC64_HIGHEST_S:
2806 fixP->fx_no_overflow = 1;
2813 fix_new_exp (frag_now,
2814 f - frag_now->fr_literal,
2817 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
2818 ((bfd_reloc_code_real_type)
2819 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
2823 /* Handle a macro. Gather all the operands, transform them as
2824 described by the macro, and call md_assemble recursively. All the
2825 operands are separated by commas; we don't accept parentheses
2826 around operands here. */
2829 ppc_macro (char *str, const struct powerpc_macro *macro)
2840 /* Gather the users operands into the operands array. */
2845 if (count >= sizeof operands / sizeof operands[0])
2847 operands[count++] = s;
2848 s = strchr (s, ',');
2849 if (s == (char *) NULL)
2854 if (count != macro->operands)
2856 as_bad (_("wrong number of operands"));
2860 /* Work out how large the string must be (the size is unbounded
2861 because it includes user input). */
2863 format = macro->format;
2864 while (*format != '\0')
2873 arg = strtol (format + 1, &send, 10);
2874 know (send != format && arg < count);
2875 len += strlen (operands[arg]);
2880 /* Put the string together. */
2881 complete = s = (char *) alloca (len + 1);
2882 format = macro->format;
2883 while (*format != '\0')
2889 arg = strtol (format + 1, &send, 10);
2890 strcpy (s, operands[arg]);
2897 /* Assemble the constructed instruction. */
2898 md_assemble (complete);
2902 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2905 ppc_section_letter (int letter, char **ptr_msg)
2910 *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2915 ppc_section_word (char *str, size_t len)
2917 if (len == 7 && strncmp (str, "exclude", 7) == 0)
2924 ppc_section_type (char *str, size_t len)
2926 if (len == 7 && strncmp (str, "ordered", 7) == 0)
2933 ppc_section_flags (int flags, int attr, int type)
2935 if (type == SHT_ORDERED)
2936 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
2938 if (attr & SHF_EXCLUDE)
2939 flags |= SEC_EXCLUDE;
2943 #endif /* OBJ_ELF */
2946 /* Pseudo-op handling. */
2948 /* The .byte pseudo-op. This is similar to the normal .byte
2949 pseudo-op, but it can also take a single ASCII string. */
2952 ppc_byte (int ignore ATTRIBUTE_UNUSED)
2954 if (*input_line_pointer != '\"')
2960 /* Gather characters. A real double quote is doubled. Unusual
2961 characters are not permitted. */
2962 ++input_line_pointer;
2967 c = *input_line_pointer++;
2971 if (*input_line_pointer != '\"')
2973 ++input_line_pointer;
2976 FRAG_APPEND_1_CHAR (c);
2979 demand_empty_rest_of_line ();
2984 /* XCOFF specific pseudo-op handling. */
2986 /* This is set if we are creating a .stabx symbol, since we don't want
2987 to handle symbol suffixes for such symbols. */
2988 static bfd_boolean ppc_stab_symbol;
2990 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2991 symbols in the .bss segment as though they were local common
2992 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
2993 aligns .comm and .lcomm to 4 bytes. */
2996 ppc_comm (int lcomm)
2998 asection *current_seg = now_seg;
2999 subsegT current_subseg = now_subseg;
3005 symbolS *lcomm_sym = NULL;
3009 name = input_line_pointer;
3010 endc = get_symbol_end ();
3011 end_name = input_line_pointer;
3014 if (*input_line_pointer != ',')
3016 as_bad (_("missing size"));
3017 ignore_rest_of_line ();
3020 ++input_line_pointer;
3022 size = get_absolute_expression ();
3025 as_bad (_("negative size"));
3026 ignore_rest_of_line ();
3032 /* The third argument to .comm is the alignment. */
3033 if (*input_line_pointer != ',')
3037 ++input_line_pointer;
3038 align = get_absolute_expression ();
3041 as_warn (_("ignoring bad alignment"));
3056 /* The third argument to .lcomm appears to be the real local
3057 common symbol to create. References to the symbol named in
3058 the first argument are turned into references to the third
3060 if (*input_line_pointer != ',')
3062 as_bad (_("missing real symbol name"));
3063 ignore_rest_of_line ();
3066 ++input_line_pointer;
3068 lcomm_name = input_line_pointer;
3069 lcomm_endc = get_symbol_end ();
3071 lcomm_sym = symbol_find_or_make (lcomm_name);
3073 *input_line_pointer = lcomm_endc;
3077 sym = symbol_find_or_make (name);
3080 if (S_IS_DEFINED (sym)
3081 || S_GET_VALUE (sym) != 0)
3083 as_bad (_("attempt to redefine symbol"));
3084 ignore_rest_of_line ();
3088 record_alignment (bss_section, align);
3091 || ! S_IS_DEFINED (lcomm_sym))
3100 S_SET_EXTERNAL (sym);
3104 symbol_get_tc (lcomm_sym)->output = 1;
3105 def_sym = lcomm_sym;
3109 subseg_set (bss_section, 1);
3110 frag_align (align, 0, 0);
3112 symbol_set_frag (def_sym, frag_now);
3113 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
3114 def_size, (char *) NULL);
3116 S_SET_SEGMENT (def_sym, bss_section);
3117 symbol_get_tc (def_sym)->align = align;
3121 /* Align the size of lcomm_sym. */
3122 symbol_get_frag (lcomm_sym)->fr_offset =
3123 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
3124 &~ ((1 << align) - 1));
3125 if (align > symbol_get_tc (lcomm_sym)->align)
3126 symbol_get_tc (lcomm_sym)->align = align;
3131 /* Make sym an offset from lcomm_sym. */
3132 S_SET_SEGMENT (sym, bss_section);
3133 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
3134 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
3135 symbol_get_frag (lcomm_sym)->fr_offset += size;
3138 subseg_set (current_seg, current_subseg);
3140 demand_empty_rest_of_line ();
3143 /* The .csect pseudo-op. This switches us into a different
3144 subsegment. The first argument is a symbol whose value is the
3145 start of the .csect. In COFF, csect symbols get special aux
3146 entries defined by the x_csect field of union internal_auxent. The
3147 optional second argument is the alignment (the default is 2). */
3150 ppc_csect (int ignore ATTRIBUTE_UNUSED)
3157 name = input_line_pointer;
3158 endc = get_symbol_end ();
3160 sym = symbol_find_or_make (name);
3162 *input_line_pointer = endc;
3164 if (S_GET_NAME (sym)[0] == '\0')
3166 /* An unnamed csect is assumed to be [PR]. */
3167 symbol_get_tc (sym)->class = XMC_PR;
3171 if (*input_line_pointer == ',')
3173 ++input_line_pointer;
3174 align = get_absolute_expression ();
3177 ppc_change_csect (sym, align);
3179 demand_empty_rest_of_line ();
3182 /* Change to a different csect. */
3185 ppc_change_csect (symbolS *sym, offsetT align)
3187 if (S_IS_DEFINED (sym))
3188 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3198 /* This is a new csect. We need to look at the symbol class to
3199 figure out whether it should go in the text section or the
3203 switch (symbol_get_tc (sym)->class)
3213 S_SET_SEGMENT (sym, text_section);
3214 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3215 ++ppc_text_subsegment;
3216 list_ptr = &ppc_text_csects;
3226 if (ppc_toc_csect != NULL
3227 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3228 == ppc_data_subsegment))
3230 S_SET_SEGMENT (sym, data_section);
3231 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3232 ++ppc_data_subsegment;
3233 list_ptr = &ppc_data_csects;
3239 /* We set the obstack chunk size to a small value before
3240 changing subsegments, so that we don't use a lot of memory
3241 space for what may be a small section. */
3242 hold_chunksize = chunksize;
3245 sec = subseg_new (segment_name (S_GET_SEGMENT (sym)),
3246 symbol_get_tc (sym)->subseg);
3248 chunksize = hold_chunksize;
3251 ppc_after_toc_frag = frag_now;
3253 record_alignment (sec, align);
3255 frag_align_code (align, 0);
3257 frag_align (align, 0, 0);
3259 symbol_set_frag (sym, frag_now);
3260 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3262 symbol_get_tc (sym)->align = align;
3263 symbol_get_tc (sym)->output = 1;
3264 symbol_get_tc (sym)->within = sym;
3266 for (list = *list_ptr;
3267 symbol_get_tc (list)->next != (symbolS *) NULL;
3268 list = symbol_get_tc (list)->next)
3270 symbol_get_tc (list)->next = sym;
3272 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3273 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3277 ppc_current_csect = sym;
3280 /* This function handles the .text and .data pseudo-ops. These
3281 pseudo-ops aren't really used by XCOFF; we implement them for the
3282 convenience of people who aren't used to XCOFF. */
3285 ppc_section (int type)
3292 else if (type == 'd')
3297 sym = symbol_find_or_make (name);
3299 ppc_change_csect (sym, 2);
3301 demand_empty_rest_of_line ();
3304 /* This function handles the .section pseudo-op. This is mostly to
3305 give an error, since XCOFF only supports .text, .data and .bss, but
3306 we do permit the user to name the text or data section. */
3309 ppc_named_section (int ignore ATTRIBUTE_UNUSED)
3312 const char *real_name;
3316 user_name = input_line_pointer;
3317 c = get_symbol_end ();
3319 if (strcmp (user_name, ".text") == 0)
3320 real_name = ".text[PR]";
3321 else if (strcmp (user_name, ".data") == 0)
3322 real_name = ".data[RW]";
3325 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3326 *input_line_pointer = c;
3327 ignore_rest_of_line ();
3331 *input_line_pointer = c;
3333 sym = symbol_find_or_make (real_name);
3335 ppc_change_csect (sym, 2);
3337 demand_empty_rest_of_line ();
3340 /* The .extern pseudo-op. We create an undefined symbol. */
3343 ppc_extern (int ignore ATTRIBUTE_UNUSED)
3348 name = input_line_pointer;
3349 endc = get_symbol_end ();
3351 (void) symbol_find_or_make (name);
3353 *input_line_pointer = endc;
3355 demand_empty_rest_of_line ();
3358 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3361 ppc_lglobl (int ignore ATTRIBUTE_UNUSED)
3367 name = input_line_pointer;
3368 endc = get_symbol_end ();
3370 sym = symbol_find_or_make (name);
3372 *input_line_pointer = endc;
3374 symbol_get_tc (sym)->output = 1;
3376 demand_empty_rest_of_line ();
3379 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3380 although I don't know why it bothers. */
3383 ppc_rename (int ignore ATTRIBUTE_UNUSED)
3390 name = input_line_pointer;
3391 endc = get_symbol_end ();
3393 sym = symbol_find_or_make (name);
3395 *input_line_pointer = endc;
3397 if (*input_line_pointer != ',')
3399 as_bad (_("missing rename string"));
3400 ignore_rest_of_line ();
3403 ++input_line_pointer;
3405 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
3407 demand_empty_rest_of_line ();
3410 /* The .stabx pseudo-op. This is similar to a normal .stabs
3411 pseudo-op, but slightly different. A sample is
3412 .stabx "main:F-1",.main,142,0
3413 The first argument is the symbol name to create. The second is the
3414 value, and the third is the storage class. The fourth seems to be
3415 always zero, and I am assuming it is the type. */
3418 ppc_stabx (int ignore ATTRIBUTE_UNUSED)
3425 name = demand_copy_C_string (&len);
3427 if (*input_line_pointer != ',')
3429 as_bad (_("missing value"));
3432 ++input_line_pointer;
3434 ppc_stab_symbol = TRUE;
3435 sym = symbol_make (name);
3436 ppc_stab_symbol = FALSE;
3438 symbol_get_tc (sym)->real_name = name;
3440 (void) expression (&exp);
3447 as_bad (_("illegal .stabx expression; zero assumed"));
3448 exp.X_add_number = 0;
3451 S_SET_VALUE (sym, (valueT) exp.X_add_number);
3452 symbol_set_frag (sym, &zero_address_frag);
3456 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
3457 symbol_set_value_expression (sym, &exp);
3461 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
3462 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
3467 /* The value is some complex expression. This will probably
3468 fail at some later point, but this is probably the right
3469 thing to do here. */
3470 symbol_set_value_expression (sym, &exp);
3474 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3475 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3477 if (*input_line_pointer != ',')
3479 as_bad (_("missing class"));
3482 ++input_line_pointer;
3484 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
3486 if (*input_line_pointer != ',')
3488 as_bad (_("missing type"));
3491 ++input_line_pointer;
3493 S_SET_DATA_TYPE (sym, get_absolute_expression ());
3495 symbol_get_tc (sym)->output = 1;
3497 if (S_GET_STORAGE_CLASS (sym) == C_STSYM) {
3499 symbol_get_tc (sym)->within = ppc_current_block;
3504 .stabx "z",arrays_,133,0
3507 .comm arrays_,13768,3
3509 resolve_symbol_value will copy the exp's "within" into sym's when the
3510 offset is 0. Since this seems to be corner case problem,
3511 only do the correction for storage class C_STSYM. A better solution
3512 would be to have the tc field updated in ppc_symbol_new_hook. */
3514 if (exp.X_op == O_symbol)
3516 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
3520 if (exp.X_op != O_symbol
3521 || ! S_IS_EXTERNAL (exp.X_add_symbol)
3522 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
3523 ppc_frob_label (sym);
3526 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3527 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
3528 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
3529 symbol_get_tc (ppc_current_csect)->within = sym;
3532 demand_empty_rest_of_line ();
3535 /* The .function pseudo-op. This takes several arguments. The first
3536 argument seems to be the external name of the symbol. The second
3537 argument seems to be the label for the start of the function. gcc
3538 uses the same name for both. I have no idea what the third and
3539 fourth arguments are meant to be. The optional fifth argument is
3540 an expression for the size of the function. In COFF this symbol
3541 gets an aux entry like that used for a csect. */
3544 ppc_function (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;
3637 ppc_bf (int ignore ATTRIBUTE_UNUSED)
3641 sym = symbol_make (".bf");
3642 S_SET_SEGMENT (sym, text_section);
3643 symbol_set_frag (sym, frag_now);
3644 S_SET_VALUE (sym, frag_now_fix ());
3645 S_SET_STORAGE_CLASS (sym, C_FCN);
3647 coff_line_base = get_absolute_expression ();
3649 S_SET_NUMBER_AUXILIARY (sym, 1);
3650 SA_SET_SYM_LNNO (sym, coff_line_base);
3652 /* Line number for bi. */
3655 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
3660 symbol_get_tc (sym)->output = 1;
3662 ppc_frob_label (sym);
3664 demand_empty_rest_of_line ();
3667 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3668 ".ef", except that the line number is absolute, not relative to the
3669 most recent ".bf" symbol. */
3672 ppc_ef (int ignore ATTRIBUTE_UNUSED)
3676 sym = symbol_make (".ef");
3677 S_SET_SEGMENT (sym, text_section);
3678 symbol_set_frag (sym, frag_now);
3679 S_SET_VALUE (sym, frag_now_fix ());
3680 S_SET_STORAGE_CLASS (sym, C_FCN);
3681 S_SET_NUMBER_AUXILIARY (sym, 1);
3682 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3683 symbol_get_tc (sym)->output = 1;
3685 ppc_frob_label (sym);
3687 demand_empty_rest_of_line ();
3690 /* The .bi and .ei pseudo-ops. These take a string argument and
3691 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3692 the symbol list. The value of .bi will be know when the next .bf
3698 static symbolS *last_biei;
3705 name = demand_copy_C_string (&len);
3707 /* The value of these symbols is actually file offset. Here we set
3708 the value to the index into the line number entries. In
3709 ppc_frob_symbols we set the fix_line field, which will cause BFD
3710 to do the right thing. */
3712 sym = symbol_make (name);
3713 /* obj-coff.c currently only handles line numbers correctly in the
3715 S_SET_SEGMENT (sym, text_section);
3716 S_SET_VALUE (sym, coff_n_line_nos);
3717 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3719 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
3720 symbol_get_tc (sym)->output = 1;
3728 for (look = last_biei ? last_biei : symbol_rootP;
3729 (look != (symbolS *) NULL
3730 && (S_GET_STORAGE_CLASS (look) == C_FILE
3731 || S_GET_STORAGE_CLASS (look) == C_BINCL
3732 || S_GET_STORAGE_CLASS (look) == C_EINCL));
3733 look = symbol_next (look))
3735 if (look != (symbolS *) NULL)
3737 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3738 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
3742 demand_empty_rest_of_line ();
3745 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3746 There is one argument, which is a csect symbol. The value of the
3747 .bs symbol is the index of this csect symbol. */
3750 ppc_bs (int ignore ATTRIBUTE_UNUSED)
3757 if (ppc_current_block != NULL)
3758 as_bad (_("nested .bs blocks"));
3760 name = input_line_pointer;
3761 endc = get_symbol_end ();
3763 csect = symbol_find_or_make (name);
3765 *input_line_pointer = endc;
3767 sym = symbol_make (".bs");
3768 S_SET_SEGMENT (sym, now_seg);
3769 S_SET_STORAGE_CLASS (sym, C_BSTAT);
3770 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3771 symbol_get_tc (sym)->output = 1;
3773 symbol_get_tc (sym)->within = csect;
3775 ppc_frob_label (sym);
3777 ppc_current_block = sym;
3779 demand_empty_rest_of_line ();
3782 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3785 ppc_es (int ignore ATTRIBUTE_UNUSED)
3789 if (ppc_current_block == NULL)
3790 as_bad (_(".es without preceding .bs"));
3792 sym = symbol_make (".es");
3793 S_SET_SEGMENT (sym, now_seg);
3794 S_SET_STORAGE_CLASS (sym, C_ESTAT);
3795 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3796 symbol_get_tc (sym)->output = 1;
3798 ppc_frob_label (sym);
3800 ppc_current_block = NULL;
3802 demand_empty_rest_of_line ();
3805 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3809 ppc_bb (int ignore ATTRIBUTE_UNUSED)
3813 sym = symbol_make (".bb");
3814 S_SET_SEGMENT (sym, text_section);
3815 symbol_set_frag (sym, frag_now);
3816 S_SET_VALUE (sym, frag_now_fix ());
3817 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3819 S_SET_NUMBER_AUXILIARY (sym, 1);
3820 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3822 symbol_get_tc (sym)->output = 1;
3824 SF_SET_PROCESS (sym);
3826 ppc_frob_label (sym);
3828 demand_empty_rest_of_line ();
3831 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3835 ppc_eb (int ignore ATTRIBUTE_UNUSED)
3839 sym = symbol_make (".eb");
3840 S_SET_SEGMENT (sym, text_section);
3841 symbol_set_frag (sym, frag_now);
3842 S_SET_VALUE (sym, frag_now_fix ());
3843 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3844 S_SET_NUMBER_AUXILIARY (sym, 1);
3845 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3846 symbol_get_tc (sym)->output = 1;
3848 SF_SET_PROCESS (sym);
3850 ppc_frob_label (sym);
3852 demand_empty_rest_of_line ();
3855 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3859 ppc_bc (int ignore ATTRIBUTE_UNUSED)
3865 name = demand_copy_C_string (&len);
3866 sym = symbol_make (name);
3867 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3868 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3869 S_SET_STORAGE_CLASS (sym, C_BCOMM);
3870 S_SET_VALUE (sym, 0);
3871 symbol_get_tc (sym)->output = 1;
3873 ppc_frob_label (sym);
3875 demand_empty_rest_of_line ();
3878 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3881 ppc_ec (int ignore ATTRIBUTE_UNUSED)
3885 sym = symbol_make (".ec");
3886 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3887 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3888 S_SET_STORAGE_CLASS (sym, C_ECOMM);
3889 S_SET_VALUE (sym, 0);
3890 symbol_get_tc (sym)->output = 1;
3892 ppc_frob_label (sym);
3894 demand_empty_rest_of_line ();
3897 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3900 ppc_toc (int ignore ATTRIBUTE_UNUSED)
3902 if (ppc_toc_csect != (symbolS *) NULL)
3903 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
3910 subseg = ppc_data_subsegment;
3911 ++ppc_data_subsegment;
3913 subseg_new (segment_name (data_section), subseg);
3914 ppc_toc_frag = frag_now;
3916 sym = symbol_find_or_make ("TOC[TC0]");
3917 symbol_set_frag (sym, frag_now);
3918 S_SET_SEGMENT (sym, data_section);
3919 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3920 symbol_get_tc (sym)->subseg = subseg;
3921 symbol_get_tc (sym)->output = 1;
3922 symbol_get_tc (sym)->within = sym;
3924 ppc_toc_csect = sym;
3926 for (list = ppc_data_csects;
3927 symbol_get_tc (list)->next != (symbolS *) NULL;
3928 list = symbol_get_tc (list)->next)
3930 symbol_get_tc (list)->next = sym;
3932 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3933 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3937 ppc_current_csect = ppc_toc_csect;
3939 demand_empty_rest_of_line ();
3942 /* The AIX assembler automatically aligns the operands of a .long or
3943 .short pseudo-op, and we want to be compatible. */
3946 ppc_xcoff_cons (int log_size)
3948 frag_align (log_size, 0, 0);
3949 record_alignment (now_seg, log_size);
3950 cons (1 << log_size);
3954 ppc_vbyte (int dummy ATTRIBUTE_UNUSED)
3959 (void) expression (&exp);
3961 if (exp.X_op != O_constant)
3963 as_bad (_("non-constant byte count"));
3967 byte_count = exp.X_add_number;
3969 if (*input_line_pointer != ',')
3971 as_bad (_("missing value"));
3975 ++input_line_pointer;
3979 #endif /* OBJ_XCOFF */
3980 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3982 /* The .tc pseudo-op. This is used when generating either XCOFF or
3983 ELF. This takes two or more arguments.
3985 When generating XCOFF output, the first argument is the name to
3986 give to this location in the toc; this will be a symbol with class
3987 TC. The rest of the arguments are N-byte values to actually put at
3988 this location in the TOC; often there is just one more argument, a
3989 relocatable symbol reference. The size of the value to store
3990 depends on target word size. A 32-bit target uses 4-byte values, a
3991 64-bit target uses 8-byte values.
3993 When not generating XCOFF output, the arguments are the same, but
3994 the first argument is simply ignored. */
3997 ppc_tc (int ignore ATTRIBUTE_UNUSED)
4001 /* Define the TOC symbol name. */
4007 if (ppc_toc_csect == (symbolS *) NULL
4008 || ppc_toc_csect != ppc_current_csect)
4010 as_bad (_(".tc not in .toc section"));
4011 ignore_rest_of_line ();
4015 name = input_line_pointer;
4016 endc = get_symbol_end ();
4018 sym = symbol_find_or_make (name);
4020 *input_line_pointer = endc;
4022 if (S_IS_DEFINED (sym))
4026 label = symbol_get_tc (ppc_current_csect)->within;
4027 if (symbol_get_tc (label)->class != XMC_TC0)
4029 as_bad (_(".tc with no label"));
4030 ignore_rest_of_line ();
4034 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
4035 symbol_set_frag (label, symbol_get_frag (sym));
4036 S_SET_VALUE (label, S_GET_VALUE (sym));
4038 while (! is_end_of_line[(unsigned char) *input_line_pointer])
4039 ++input_line_pointer;
4044 S_SET_SEGMENT (sym, now_seg);
4045 symbol_set_frag (sym, frag_now);
4046 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4047 symbol_get_tc (sym)->class = XMC_TC;
4048 symbol_get_tc (sym)->output = 1;
4050 ppc_frob_label (sym);
4053 #endif /* OBJ_XCOFF */
4057 /* Skip the TOC symbol name. */
4058 while (is_part_of_name (*input_line_pointer)
4059 || *input_line_pointer == '['
4060 || *input_line_pointer == ']'
4061 || *input_line_pointer == '{'
4062 || *input_line_pointer == '}')
4063 ++input_line_pointer;
4065 /* Align to a four/eight byte boundary. */
4066 align = ppc_obj64 ? 3 : 2;
4067 frag_align (align, 0, 0);
4068 record_alignment (now_seg, align);
4069 #endif /* OBJ_ELF */
4071 if (*input_line_pointer != ',')
4072 demand_empty_rest_of_line ();
4075 ++input_line_pointer;
4076 cons (ppc_obj64 ? 8 : 4);
4080 /* Pseudo-op .machine. */
4083 ppc_machine (int ignore ATTRIBUTE_UNUSED)
4086 #define MAX_HISTORY 100
4087 static unsigned long *cpu_history;
4088 static int curr_hist;
4092 if (*input_line_pointer == '"')
4095 cpu_string = demand_copy_C_string (&len);
4100 cpu_string = input_line_pointer;
4101 c = get_symbol_end ();
4102 cpu_string = xstrdup (cpu_string);
4103 *input_line_pointer = c;
4106 if (cpu_string != NULL)
4108 unsigned long old_cpu = ppc_cpu;
4111 for (p = cpu_string; *p != 0; p++)
4114 if (strcmp (cpu_string, "push") == 0)
4116 if (cpu_history == NULL)
4117 cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
4119 if (curr_hist >= MAX_HISTORY)
4120 as_bad (_(".machine stack overflow"));
4122 cpu_history[curr_hist++] = ppc_cpu;
4124 else if (strcmp (cpu_string, "pop") == 0)
4127 as_bad (_(".machine stack underflow"));
4129 ppc_cpu = cpu_history[--curr_hist];
4131 else if (parse_cpu (cpu_string))
4134 as_bad (_("invalid machine `%s'"), cpu_string);
4136 if (ppc_cpu != old_cpu)
4137 ppc_setup_opcodes ();
4140 demand_empty_rest_of_line ();
4143 /* See whether a symbol is in the TOC section. */
4146 ppc_is_toc_sym (symbolS *sym)
4149 return symbol_get_tc (sym)->class == XMC_TC;
4152 const char *sname = segment_name (S_GET_SEGMENT (sym));
4154 return strcmp (sname, ".toc") == 0;
4156 return strcmp (sname, ".got") == 0;
4159 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4163 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4165 /* Set the current section. */
4167 ppc_set_current_section (segT new)
4169 ppc_previous_section = ppc_current_section;
4170 ppc_current_section = new;
4173 /* pseudo-op: .previous
4174 behaviour: toggles the current section with the previous section.
4176 warnings: "No previous section" */
4179 ppc_previous (int ignore ATTRIBUTE_UNUSED)
4183 if (ppc_previous_section == NULL)
4185 as_warn (_("No previous section to return to. Directive ignored."));
4189 subseg_set (ppc_previous_section, 0);
4191 ppc_set_current_section (ppc_previous_section);
4194 /* pseudo-op: .pdata
4195 behaviour: predefined read only data section
4199 initial: .section .pdata "adr3"
4200 a - don't know -- maybe a misprint
4201 d - initialized data
4203 3 - double word aligned (that would be 4 byte boundary)
4206 Tag index tables (also known as the function table) for exception
4207 handling, debugging, etc. */
4210 ppc_pdata (int ignore ATTRIBUTE_UNUSED)
4212 if (pdata_section == 0)
4214 pdata_section = subseg_new (".pdata", 0);
4216 bfd_set_section_flags (stdoutput, pdata_section,
4217 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4218 | SEC_READONLY | SEC_DATA ));
4220 bfd_set_section_alignment (stdoutput, pdata_section, 2);
4224 pdata_section = subseg_new (".pdata", 0);
4226 ppc_set_current_section (pdata_section);
4229 /* pseudo-op: .ydata
4230 behaviour: predefined read only data section
4234 initial: .section .ydata "drw3"
4235 a - don't know -- maybe a misprint
4236 d - initialized data
4238 3 - double word aligned (that would be 4 byte boundary)
4240 Tag tables (also known as the scope table) for exception handling,
4244 ppc_ydata (int ignore ATTRIBUTE_UNUSED)
4246 if (ydata_section == 0)
4248 ydata_section = subseg_new (".ydata", 0);
4249 bfd_set_section_flags (stdoutput, ydata_section,
4250 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4251 | SEC_READONLY | SEC_DATA ));
4253 bfd_set_section_alignment (stdoutput, ydata_section, 3);
4257 ydata_section = subseg_new (".ydata", 0);
4259 ppc_set_current_section (ydata_section);
4262 /* pseudo-op: .reldata
4263 behaviour: predefined read write data section
4264 double word aligned (4-byte)
4265 FIXME: relocation is applied to it
4266 FIXME: what's the difference between this and .data?
4269 initial: .section .reldata "drw3"
4270 d - initialized data
4273 3 - double word aligned (that would be 8 byte boundary)
4276 Like .data, but intended to hold data subject to relocation, such as
4277 function descriptors, etc. */
4280 ppc_reldata (int ignore ATTRIBUTE_UNUSED)
4282 if (reldata_section == 0)
4284 reldata_section = subseg_new (".reldata", 0);
4286 bfd_set_section_flags (stdoutput, reldata_section,
4287 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4290 bfd_set_section_alignment (stdoutput, reldata_section, 2);
4294 reldata_section = subseg_new (".reldata", 0);
4296 ppc_set_current_section (reldata_section);
4299 /* pseudo-op: .rdata
4300 behaviour: predefined read only data section
4304 initial: .section .rdata "dr3"
4305 d - initialized data
4307 3 - double word aligned (that would be 4 byte boundary) */
4310 ppc_rdata (int ignore ATTRIBUTE_UNUSED)
4312 if (rdata_section == 0)
4314 rdata_section = subseg_new (".rdata", 0);
4315 bfd_set_section_flags (stdoutput, rdata_section,
4316 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4317 | SEC_READONLY | SEC_DATA ));
4319 bfd_set_section_alignment (stdoutput, rdata_section, 2);
4323 rdata_section = subseg_new (".rdata", 0);
4325 ppc_set_current_section (rdata_section);
4328 /* pseudo-op: .ualong
4329 behaviour: much like .int, with the exception that no alignment is
4331 FIXME: test the alignment statement
4336 ppc_ualong (int ignore ATTRIBUTE_UNUSED)
4342 /* pseudo-op: .znop <symbol name>
4343 behaviour: Issue a nop instruction
4344 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4345 the supplied symbol name.
4347 warnings: Missing symbol name */
4350 ppc_znop (int ignore ATTRIBUTE_UNUSED)
4353 const struct powerpc_opcode *opcode;
4364 /* Strip out the symbol name. */
4365 symbol_name = input_line_pointer;
4366 c = get_symbol_end ();
4368 name = xmalloc (input_line_pointer - symbol_name + 1);
4369 strcpy (name, symbol_name);
4371 sym = symbol_find_or_make (name);
4373 *input_line_pointer = c;
4377 /* Look up the opcode in the hash table. */
4378 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
4380 /* Stick in the nop. */
4381 insn = opcode->opcode;
4383 /* Write out the instruction. */
4385 md_number_to_chars (f, insn, 4);
4387 f - frag_now->fr_literal,
4392 BFD_RELOC_16_GOT_PCREL);
4402 ppc_pe_comm (int lcomm)
4411 name = input_line_pointer;
4412 c = get_symbol_end ();
4414 /* just after name is now '\0'. */
4415 p = input_line_pointer;
4418 if (*input_line_pointer != ',')
4420 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4421 ignore_rest_of_line ();
4425 input_line_pointer++; /* skip ',' */
4426 if ((temp = get_absolute_expression ()) < 0)
4428 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
4429 ignore_rest_of_line ();
4435 /* The third argument to .comm is the alignment. */
4436 if (*input_line_pointer != ',')
4440 ++input_line_pointer;
4441 align = get_absolute_expression ();
4444 as_warn (_("ignoring bad alignment"));
4451 symbolP = symbol_find_or_make (name);
4454 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
4456 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4457 S_GET_NAME (symbolP));
4458 ignore_rest_of_line ();
4462 if (S_GET_VALUE (symbolP))
4464 if (S_GET_VALUE (symbolP) != (valueT) temp)
4465 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4466 S_GET_NAME (symbolP),
4467 (long) S_GET_VALUE (symbolP),
4472 S_SET_VALUE (symbolP, (valueT) temp);
4473 S_SET_EXTERNAL (symbolP);
4474 S_SET_SEGMENT (symbolP, bfd_com_section_ptr);
4477 demand_empty_rest_of_line ();
4481 * implement the .section pseudo op:
4482 * .section name {, "flags"}
4484 * | +--- optional flags: 'b' for bss
4486 * +-- section name 'l' for lib
4490 * 'd' (apparently m88k for data)
4492 * But if the argument is not a quoted string, treat it as a
4493 * subsegment number.
4495 * FIXME: this is a copy of the section processing from obj-coff.c, with
4496 * additions/changes for the moto-pas assembler support. There are three
4499 * FIXME: I just noticed this. This doesn't work at all really. It it
4500 * setting bits that bfd probably neither understands or uses. The
4501 * correct approach (?) will have to incorporate extra fields attached
4502 * to the section to hold the system specific stuff. (krk)
4505 * 'a' - unknown - referred to in documentation, but no definition supplied
4506 * 'c' - section has code
4507 * 'd' - section has initialized data
4508 * 'u' - section has uninitialized data
4509 * 'i' - section contains directives (info)
4510 * 'n' - section can be discarded
4511 * 'R' - remove section at link time
4513 * Section Protection:
4514 * 'r' - section is readable
4515 * 'w' - section is writeable
4516 * 'x' - section is executable
4517 * 's' - section is sharable
4519 * Section Alignment:
4520 * '0' - align to byte boundary
4521 * '1' - align to halfword undary
4522 * '2' - align to word boundary
4523 * '3' - align to doubleword boundary
4524 * '4' - align to quadword boundary
4525 * '5' - align to 32 byte boundary
4526 * '6' - align to 64 byte boundary
4531 ppc_pe_section (int ignore ATTRIBUTE_UNUSED)
4533 /* Strip out the section name. */
4542 section_name = input_line_pointer;
4543 c = get_symbol_end ();
4545 name = xmalloc (input_line_pointer - section_name + 1);
4546 strcpy (name, section_name);
4548 *input_line_pointer = c;
4553 flags = SEC_NO_FLAGS;
4555 if (strcmp (name, ".idata$2") == 0)
4559 else if (strcmp (name, ".idata$3") == 0)
4563 else if (strcmp (name, ".idata$4") == 0)
4567 else if (strcmp (name, ".idata$5") == 0)
4571 else if (strcmp (name, ".idata$6") == 0)
4576 /* Default alignment to 16 byte boundary. */
4579 if (*input_line_pointer == ',')
4581 ++input_line_pointer;
4583 if (*input_line_pointer != '"')
4584 exp = get_absolute_expression ();
4587 ++input_line_pointer;
4588 while (*input_line_pointer != '"'
4589 && ! is_end_of_line[(unsigned char) *input_line_pointer])
4591 switch (*input_line_pointer)
4593 /* Section Contents */
4594 case 'a': /* unknown */
4595 as_bad (_("Unsupported section attribute -- 'a'"));
4597 case 'c': /* code section */
4600 case 'd': /* section has initialized data */
4603 case 'u': /* section has uninitialized data */
4604 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4608 case 'i': /* section contains directives (info) */
4609 /* FIXME: This is IMAGE_SCN_LNK_INFO
4611 flags |= SEC_HAS_CONTENTS;
4613 case 'n': /* section can be discarded */
4616 case 'R': /* Remove section at link time */
4617 flags |= SEC_NEVER_LOAD;
4619 #if IFLICT_BRAIN_DAMAGE
4620 /* Section Protection */
4621 case 'r': /* section is readable */
4622 flags |= IMAGE_SCN_MEM_READ;
4624 case 'w': /* section is writeable */
4625 flags |= IMAGE_SCN_MEM_WRITE;
4627 case 'x': /* section is executable */
4628 flags |= IMAGE_SCN_MEM_EXECUTE;
4630 case 's': /* section is sharable */
4631 flags |= IMAGE_SCN_MEM_SHARED;
4634 /* Section Alignment */
4635 case '0': /* align to byte boundary */
4636 flags |= IMAGE_SCN_ALIGN_1BYTES;
4639 case '1': /* align to halfword boundary */
4640 flags |= IMAGE_SCN_ALIGN_2BYTES;
4643 case '2': /* align to word boundary */
4644 flags |= IMAGE_SCN_ALIGN_4BYTES;
4647 case '3': /* align to doubleword boundary */
4648 flags |= IMAGE_SCN_ALIGN_8BYTES;
4651 case '4': /* align to quadword boundary */
4652 flags |= IMAGE_SCN_ALIGN_16BYTES;
4655 case '5': /* align to 32 byte boundary */
4656 flags |= IMAGE_SCN_ALIGN_32BYTES;
4659 case '6': /* align to 64 byte boundary */
4660 flags |= IMAGE_SCN_ALIGN_64BYTES;
4665 as_bad (_("unknown section attribute '%c'"),
4666 *input_line_pointer);
4669 ++input_line_pointer;
4671 if (*input_line_pointer == '"')
4672 ++input_line_pointer;
4676 sec = subseg_new (name, (subsegT) exp);
4678 ppc_set_current_section (sec);
4680 if (flags != SEC_NO_FLAGS)
4682 if (! bfd_set_section_flags (stdoutput, sec, flags))
4683 as_bad (_("error setting flags for \"%s\": %s"),
4684 bfd_section_name (stdoutput, sec),
4685 bfd_errmsg (bfd_get_error ()));
4688 bfd_set_section_alignment (stdoutput, sec, align);
4692 ppc_pe_function (int ignore ATTRIBUTE_UNUSED)
4698 name = input_line_pointer;
4699 endc = get_symbol_end ();
4701 ext_sym = symbol_find_or_make (name);
4703 *input_line_pointer = endc;
4705 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4706 SF_SET_FUNCTION (ext_sym);
4707 SF_SET_PROCESS (ext_sym);
4708 coff_add_linesym (ext_sym);
4710 demand_empty_rest_of_line ();
4714 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED)
4716 if (tocdata_section == 0)
4718 tocdata_section = subseg_new (".tocd", 0);
4719 /* FIXME: section flags won't work. */
4720 bfd_set_section_flags (stdoutput, tocdata_section,
4721 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4722 | SEC_READONLY | SEC_DATA));
4724 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
4728 rdata_section = subseg_new (".tocd", 0);
4731 ppc_set_current_section (tocdata_section);
4733 demand_empty_rest_of_line ();
4736 /* Don't adjust TOC relocs to use the section symbol. */
4739 ppc_pe_fix_adjustable (fixS *fix)
4741 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
4748 /* XCOFF specific symbol and file handling. */
4750 /* Canonicalize the symbol name. We use the to force the suffix, if
4751 any, to use square brackets, and to be in upper case. */
4754 ppc_canonicalize_symbol_name (char *name)
4758 if (ppc_stab_symbol)
4761 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
4775 for (s++; *s != '\0' && *s != brac; s++)
4778 if (*s == '\0' || s[1] != '\0')
4779 as_bad (_("bad symbol suffix"));
4787 /* Set the class of a symbol based on the suffix, if any. This is
4788 called whenever a new symbol is created. */
4791 ppc_symbol_new_hook (symbolS *sym)
4793 struct ppc_tc_sy *tc;
4796 tc = symbol_get_tc (sym);
4800 tc->real_name = NULL;
4806 if (ppc_stab_symbol)
4809 s = strchr (S_GET_NAME (sym), '[');
4810 if (s == (const char *) NULL)
4812 /* There is no suffix. */
4821 if (strcmp (s, "BS]") == 0)
4825 if (strcmp (s, "DB]") == 0)
4827 else if (strcmp (s, "DS]") == 0)
4831 if (strcmp (s, "GL]") == 0)
4835 if (strcmp (s, "PR]") == 0)
4839 if (strcmp (s, "RO]") == 0)
4841 else if (strcmp (s, "RW]") == 0)
4845 if (strcmp (s, "SV]") == 0)
4849 if (strcmp (s, "TC]") == 0)
4851 else if (strcmp (s, "TI]") == 0)
4853 else if (strcmp (s, "TB]") == 0)
4855 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
4856 tc->class = XMC_TC0;
4859 if (strcmp (s, "UA]") == 0)
4861 else if (strcmp (s, "UC]") == 0)
4865 if (strcmp (s, "XO]") == 0)
4870 if (tc->class == -1)
4871 as_bad (_("Unrecognized symbol suffix"));
4874 /* Set the class of a label based on where it is defined. This
4875 handles symbols without suffixes. Also, move the symbol so that it
4876 follows the csect symbol. */
4879 ppc_frob_label (symbolS *sym)
4881 if (ppc_current_csect != (symbolS *) NULL)
4883 if (symbol_get_tc (sym)->class == -1)
4884 symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class;
4886 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4887 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
4888 &symbol_rootP, &symbol_lastP);
4889 symbol_get_tc (ppc_current_csect)->within = sym;
4893 dwarf2_emit_label (sym);
4897 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4898 seen. It tells ppc_adjust_symtab whether it needs to look through
4901 static bfd_boolean ppc_saw_abs;
4903 /* Change the name of a symbol just before writing it out. Set the
4904 real name if the .rename pseudo-op was used. Otherwise, remove any
4905 class suffix. Return 1 if the symbol should not be included in the
4909 ppc_frob_symbol (symbolS *sym)
4911 static symbolS *ppc_last_function;
4912 static symbolS *set_end;
4914 /* Discard symbols that should not be included in the output symbol
4916 if (! symbol_used_in_reloc_p (sym)
4917 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
4918 || (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
4919 && ! symbol_get_tc (sym)->output
4920 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
4923 /* This one will disappear anyway. Don't make a csect sym for it. */
4924 if (sym == abs_section_sym)
4927 if (symbol_get_tc (sym)->real_name != (char *) NULL)
4928 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
4934 name = S_GET_NAME (sym);
4935 s = strchr (name, '[');
4936 if (s != (char *) NULL)
4942 snew = xmalloc (len + 1);
4943 memcpy (snew, name, len);
4946 S_SET_NAME (sym, snew);
4950 if (set_end != (symbolS *) NULL)
4952 SA_SET_SYM_ENDNDX (set_end, sym);
4956 if (SF_GET_FUNCTION (sym))
4958 if (ppc_last_function != (symbolS *) NULL)
4959 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4960 ppc_last_function = sym;
4961 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
4963 resolve_symbol_value (symbol_get_tc (sym)->size);
4964 SA_SET_SYM_FSIZE (sym,
4965 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
4968 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
4969 && strcmp (S_GET_NAME (sym), ".ef") == 0)
4971 if (ppc_last_function == (symbolS *) NULL)
4972 as_bad (_(".ef with no preceding .function"));
4975 set_end = ppc_last_function;
4976 ppc_last_function = NULL;
4978 /* We don't have a C_EFCN symbol, but we need to force the
4979 COFF backend to believe that it has seen one. */
4980 coff_last_function = NULL;
4984 if (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
4985 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
4986 && S_GET_STORAGE_CLASS (sym) != C_FILE
4987 && S_GET_STORAGE_CLASS (sym) != C_FCN
4988 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
4989 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
4990 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
4991 && S_GET_STORAGE_CLASS (sym) != C_BINCL
4992 && S_GET_STORAGE_CLASS (sym) != C_EINCL
4993 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
4994 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
4996 if (S_GET_STORAGE_CLASS (sym) == C_EXT
4997 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
5000 union internal_auxent *a;
5002 /* Create a csect aux. */
5003 i = S_GET_NUMBER_AUXILIARY (sym);
5004 S_SET_NUMBER_AUXILIARY (sym, i + 1);
5005 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
5006 if (symbol_get_tc (sym)->class == XMC_TC0)
5008 /* This is the TOC table. */
5009 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
5010 a->x_csect.x_scnlen.l = 0;
5011 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5013 else if (symbol_get_tc (sym)->subseg != 0)
5015 /* This is a csect symbol. x_scnlen is the size of the
5017 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
5018 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5019 S_GET_SEGMENT (sym))
5020 - S_GET_VALUE (sym));
5023 resolve_symbol_value (symbol_get_tc (sym)->next);
5024 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
5025 - S_GET_VALUE (sym));
5027 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
5029 else if (S_GET_SEGMENT (sym) == bss_section)
5031 /* This is a common symbol. */
5032 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
5033 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
5034 if (S_IS_EXTERNAL (sym))
5035 symbol_get_tc (sym)->class = XMC_RW;
5037 symbol_get_tc (sym)->class = XMC_BS;
5039 else if (S_GET_SEGMENT (sym) == absolute_section)
5041 /* This is an absolute symbol. The csect will be created by
5042 ppc_adjust_symtab. */
5044 a->x_csect.x_smtyp = XTY_LD;
5045 if (symbol_get_tc (sym)->class == -1)
5046 symbol_get_tc (sym)->class = XMC_XO;
5048 else if (! S_IS_DEFINED (sym))
5050 /* This is an external symbol. */
5051 a->x_csect.x_scnlen.l = 0;
5052 a->x_csect.x_smtyp = XTY_ER;
5054 else if (symbol_get_tc (sym)->class == XMC_TC)
5058 /* This is a TOC definition. x_scnlen is the size of the
5060 next = symbol_next (sym);
5061 while (symbol_get_tc (next)->class == XMC_TC0)
5062 next = symbol_next (next);
5063 if (next == (symbolS *) NULL
5064 || symbol_get_tc (next)->class != XMC_TC)
5066 if (ppc_after_toc_frag == (fragS *) NULL)
5067 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5069 - S_GET_VALUE (sym));
5071 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
5072 - S_GET_VALUE (sym));
5076 resolve_symbol_value (next);
5077 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
5078 - S_GET_VALUE (sym));
5080 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5086 /* This is a normal symbol definition. x_scnlen is the
5087 symbol index of the containing csect. */
5088 if (S_GET_SEGMENT (sym) == text_section)
5089 csect = ppc_text_csects;
5090 else if (S_GET_SEGMENT (sym) == data_section)
5091 csect = ppc_data_csects;
5095 /* Skip the initial dummy symbol. */
5096 csect = symbol_get_tc (csect)->next;
5098 if (csect == (symbolS *) NULL)
5100 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
5101 a->x_csect.x_scnlen.l = 0;
5105 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
5107 resolve_symbol_value (symbol_get_tc (csect)->next);
5108 if (S_GET_VALUE (symbol_get_tc (csect)->next)
5109 > S_GET_VALUE (sym))
5111 csect = symbol_get_tc (csect)->next;
5114 a->x_csect.x_scnlen.p =
5115 coffsymbol (symbol_get_bfdsym (csect))->native;
5116 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
5119 a->x_csect.x_smtyp = XTY_LD;
5122 a->x_csect.x_parmhash = 0;
5123 a->x_csect.x_snhash = 0;
5124 if (symbol_get_tc (sym)->class == -1)
5125 a->x_csect.x_smclas = XMC_PR;
5127 a->x_csect.x_smclas = symbol_get_tc (sym)->class;
5128 a->x_csect.x_stab = 0;
5129 a->x_csect.x_snstab = 0;
5131 /* Don't let the COFF backend resort these symbols. */
5132 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
5134 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
5136 /* We want the value to be the symbol index of the referenced
5137 csect symbol. BFD will do that for us if we set the right
5139 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
5140 combined_entry_type *c = coffsymbol (bsym)->native;
5142 S_SET_VALUE (sym, (valueT) (size_t) c);
5143 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
5145 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
5150 /* The value is the offset from the enclosing csect. */
5151 block = symbol_get_tc (sym)->within;
5152 csect = symbol_get_tc (block)->within;
5153 resolve_symbol_value (csect);
5154 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
5156 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
5157 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
5159 /* We want the value to be a file offset into the line numbers.
5160 BFD will do that for us if we set the right flags. We have
5161 already set the value correctly. */
5162 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
5168 /* Adjust the symbol table. This creates csect symbols for all
5169 absolute symbols. */
5172 ppc_adjust_symtab (void)
5179 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
5183 union internal_auxent *a;
5185 if (S_GET_SEGMENT (sym) != absolute_section)
5188 csect = symbol_create (".abs[XO]", absolute_section,
5189 S_GET_VALUE (sym), &zero_address_frag);
5190 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
5191 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
5192 i = S_GET_NUMBER_AUXILIARY (csect);
5193 S_SET_NUMBER_AUXILIARY (csect, i + 1);
5194 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
5195 a->x_csect.x_scnlen.l = 0;
5196 a->x_csect.x_smtyp = XTY_SD;
5197 a->x_csect.x_parmhash = 0;
5198 a->x_csect.x_snhash = 0;
5199 a->x_csect.x_smclas = XMC_XO;
5200 a->x_csect.x_stab = 0;
5201 a->x_csect.x_snstab = 0;
5203 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
5205 i = S_GET_NUMBER_AUXILIARY (sym);
5206 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
5207 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
5208 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
5211 ppc_saw_abs = FALSE;
5214 /* Set the VMA for a section. This is called on all the sections in
5218 ppc_frob_section (asection *sec)
5220 static bfd_vma vma = 0;
5222 vma = md_section_align (sec, vma);
5223 bfd_set_section_vma (stdoutput, sec, vma);
5224 vma += bfd_section_size (stdoutput, sec);
5227 #endif /* OBJ_XCOFF */
5229 /* Turn a string in input_line_pointer into a floating point constant
5230 of type TYPE, and store the appropriate bytes in *LITP. The number
5231 of LITTLENUMS emitted is stored in *SIZEP. An error message is
5232 returned, or NULL on OK. */
5235 md_atof (int type, char *litp, int *sizep)
5238 LITTLENUM_TYPE words[4];
5254 return _("bad call to md_atof");
5257 t = atof_ieee (input_line_pointer, type, words);
5259 input_line_pointer = t;
5263 if (target_big_endian)
5265 for (i = 0; i < prec; i++)
5267 md_number_to_chars (litp, (valueT) words[i], 2);
5273 for (i = prec - 1; i >= 0; i--)
5275 md_number_to_chars (litp, (valueT) words[i], 2);
5283 /* Write a value out to the object file, using the appropriate
5287 md_number_to_chars (char *buf, valueT val, int n)
5289 if (target_big_endian)
5290 number_to_chars_bigendian (buf, val, n);
5292 number_to_chars_littleendian (buf, val, n);
5295 /* Align a section (I don't know why this is machine dependent). */
5298 md_section_align (asection *seg ATTRIBUTE_UNUSED, valueT addr)
5303 int align = bfd_get_section_alignment (stdoutput, seg);
5305 return ((addr + (1 << align) - 1) & (-1 << align));
5309 /* We don't have any form of relaxing. */
5312 md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED,
5313 asection *seg ATTRIBUTE_UNUSED)
5319 /* Convert a machine dependent frag. We never generate these. */
5322 md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
5323 asection *sec ATTRIBUTE_UNUSED,
5324 fragS *fragp ATTRIBUTE_UNUSED)
5329 /* We have no need to default values of symbols. */
5332 md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
5337 /* Functions concerning relocs. */
5339 /* The location from which a PC relative jump should be calculated,
5340 given a PC relative reloc. */
5343 md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED)
5345 return fixp->fx_frag->fr_address + fixp->fx_where;
5350 /* This is called to see whether a fixup should be adjusted to use a
5351 section symbol. We take the opportunity to change a fixup against
5352 a symbol in the TOC subsegment into a reloc against the
5353 corresponding .tc symbol. */
5356 ppc_fix_adjustable (fixS *fix)
5358 valueT val = resolve_symbol_value (fix->fx_addsy);
5359 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
5360 TC_SYMFIELD_TYPE *tc;
5362 if (symseg == absolute_section)
5365 if (ppc_toc_csect != (symbolS *) NULL
5366 && fix->fx_addsy != ppc_toc_csect
5367 && symseg == data_section
5368 && val >= ppc_toc_frag->fr_address
5369 && (ppc_after_toc_frag == (fragS *) NULL
5370 || val < ppc_after_toc_frag->fr_address))
5374 for (sy = symbol_next (ppc_toc_csect);
5375 sy != (symbolS *) NULL;
5376 sy = symbol_next (sy))
5378 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
5380 if (sy_tc->class == XMC_TC0)
5382 if (sy_tc->class != XMC_TC)
5384 if (val == resolve_symbol_value (sy))
5387 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
5392 as_bad_where (fix->fx_file, fix->fx_line,
5393 _("symbol in .toc does not match any .tc"));
5396 /* Possibly adjust the reloc to be against the csect. */
5397 tc = symbol_get_tc (fix->fx_addsy);
5399 && tc->class != XMC_TC0
5400 && tc->class != XMC_TC
5401 && symseg != bss_section
5402 /* Don't adjust if this is a reloc in the toc section. */
5403 && (symseg != data_section
5404 || ppc_toc_csect == NULL
5405 || val < ppc_toc_frag->fr_address
5406 || (ppc_after_toc_frag != NULL
5407 && val >= ppc_after_toc_frag->fr_address)))
5410 symbolS *next_csect;
5412 if (symseg == text_section)
5413 csect = ppc_text_csects;
5414 else if (symseg == data_section)
5415 csect = ppc_data_csects;
5419 /* Skip the initial dummy symbol. */
5420 csect = symbol_get_tc (csect)->next;
5422 if (csect != (symbolS *) NULL)
5424 while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL
5425 && (symbol_get_frag (next_csect)->fr_address <= val))
5427 /* If the csect address equals the symbol value, then we
5428 have to look through the full symbol table to see
5429 whether this is the csect we want. Note that we will
5430 only get here if the csect has zero length. */
5431 if (symbol_get_frag (csect)->fr_address == val
5432 && S_GET_VALUE (csect) == val)
5436 for (scan = symbol_next (csect);
5438 scan = symbol_next (scan))
5440 if (symbol_get_tc (scan)->subseg != 0)
5442 if (scan == fix->fx_addsy)
5446 /* If we found the symbol before the next csect
5447 symbol, then this is the csect we want. */
5448 if (scan == fix->fx_addsy)
5455 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
5456 fix->fx_addsy = csect;
5461 /* Adjust a reloc against a .lcomm symbol to be against the base
5463 if (symseg == bss_section
5464 && ! S_IS_EXTERNAL (fix->fx_addsy))
5466 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
5468 fix->fx_offset += val - resolve_symbol_value (sy);
5475 /* A reloc from one csect to another must be kept. The assembler
5476 will, of course, keep relocs between sections, and it will keep
5477 absolute relocs, but we need to force it to keep PC relative relocs
5478 between two csects in the same section. */
5481 ppc_force_relocation (fixS *fix)
5483 /* At this point fix->fx_addsy should already have been converted to
5484 a csect symbol. If the csect does not include the fragment, then
5485 we need to force the relocation. */
5487 && fix->fx_addsy != NULL
5488 && symbol_get_tc (fix->fx_addsy)->subseg != 0
5489 && ((symbol_get_frag (fix->fx_addsy)->fr_address
5490 > fix->fx_frag->fr_address)
5491 || (symbol_get_tc (fix->fx_addsy)->next != NULL
5492 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
5493 <= fix->fx_frag->fr_address))))
5496 return generic_force_reloc (fix);
5499 #endif /* OBJ_XCOFF */
5502 /* If this function returns non-zero, it guarantees that a relocation
5503 will be emitted for a fixup. */
5506 ppc_force_relocation (fixS *fix)
5508 /* Branch prediction relocations must force a relocation, as must
5509 the vtable description relocs. */
5510 switch (fix->fx_r_type)
5512 case BFD_RELOC_PPC_B16_BRTAKEN:
5513 case BFD_RELOC_PPC_B16_BRNTAKEN:
5514 case BFD_RELOC_PPC_BA16_BRTAKEN:
5515 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5516 case BFD_RELOC_24_PLT_PCREL:
5517 case BFD_RELOC_PPC64_TOC:
5523 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
5524 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
5527 return generic_force_reloc (fix);
5531 ppc_fix_adjustable (fixS *fix)
5533 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
5534 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
5535 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
5536 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
5537 && fix->fx_r_type != BFD_RELOC_GPREL16
5538 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
5539 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
5540 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
5541 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA));
5545 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
5546 rs_align_code frag. */
5549 ppc_handle_align (struct frag *fragP)
5551 valueT count = (fragP->fr_next->fr_address
5552 - (fragP->fr_address + fragP->fr_fix));
5554 if (count != 0 && (count & 3) == 0)
5556 char *dest = fragP->fr_literal + fragP->fr_fix;
5559 md_number_to_chars (dest, 0x60000000, 4);
5561 if ((ppc_cpu & PPC_OPCODE_POWER6) != 0)
5563 /* For power6, we want the last nop to be a group terminating
5564 one, "ori 1,1,0". Do this by inserting an rs_fill frag
5565 immediately after this one, with its address set to the last
5566 nop location. This will automatically reduce the number of
5567 nops in the current frag by one. */
5570 struct frag *group_nop = xmalloc (SIZEOF_STRUCT_FRAG + 4);
5572 memcpy (group_nop, fragP, SIZEOF_STRUCT_FRAG);
5573 group_nop->fr_address = group_nop->fr_next->fr_address - 4;
5574 group_nop->fr_fix = 0;
5575 group_nop->fr_offset = 1;
5576 group_nop->fr_type = rs_fill;
5577 fragP->fr_next = group_nop;
5578 dest = group_nop->fr_literal;
5581 md_number_to_chars (dest, 0x60210000, 4);
5586 /* Apply a fixup to the object code. This is called for all the
5587 fixups we generated by the call to fix_new_exp, above. In the call
5588 above we used a reloc code which was the largest legal reloc code
5589 plus the operand index. Here we undo that to recover the operand
5590 index. At this point all symbol values should be fully resolved,
5591 and we attempt to completely resolve the reloc. If we can not do
5592 that, we determine the correct reloc code and put it back in the
5596 md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
5598 valueT value = * valP;
5601 if (fixP->fx_addsy != NULL)
5603 /* Hack around bfd_install_relocation brain damage. */
5605 value += fixP->fx_frag->fr_address + fixP->fx_where;
5610 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5611 the symbol values. If we are doing this relocation the code in
5612 write.c is going to call bfd_install_relocation, which is also
5613 going to use the symbol value. That means that if the reloc is
5614 fully resolved we want to use *valP since bfd_install_relocation is
5616 However, if the reloc is not fully resolved we do not want to use
5617 *valP, and must use fx_offset instead. However, if the reloc
5618 is PC relative, we do want to use *valP since it includes the
5619 result of md_pcrel_from. This is confusing. */
5620 if (fixP->fx_addsy == (symbolS *) NULL)
5623 else if (fixP->fx_pcrel)
5627 value = fixP->fx_offset;
5630 if (fixP->fx_subsy != (symbolS *) NULL)
5632 /* We can't actually support subtracting a symbol. */
5633 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
5636 if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
5639 const struct powerpc_operand *operand;
5643 opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
5645 operand = &powerpc_operands[opindex];
5648 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5649 does not generate a reloc. It uses the offset of `sym' within its
5650 csect. Other usages, such as `.long sym', generate relocs. This
5651 is the documented behaviour of non-TOC symbols. */
5652 if ((operand->flags & PPC_OPERAND_PARENS) != 0
5653 && (operand->bitm & 0xfff0) == 0xfff0
5654 && operand->shift == 0
5655 && (operand->insert == NULL || ppc_obj64)
5656 && fixP->fx_addsy != NULL
5657 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
5658 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC
5659 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC0
5660 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
5662 value = fixP->fx_offset;
5667 /* Fetch the instruction, insert the fully resolved operand
5668 value, and stuff the instruction back again. */
5669 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5670 if (target_big_endian)
5671 insn = bfd_getb32 ((unsigned char *) where);
5673 insn = bfd_getl32 ((unsigned char *) where);
5674 insn = ppc_insert_operand (insn, operand, (offsetT) value,
5675 fixP->fx_file, fixP->fx_line);
5676 if (target_big_endian)
5677 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5679 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5682 /* Nothing else to do here. */
5685 assert (fixP->fx_addsy != NULL);
5687 /* Determine a BFD reloc value based on the operand information.
5688 We are only prepared to turn a few of the operands into
5690 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5691 && operand->bitm == 0x3fffffc
5692 && operand->shift == 0)
5693 fixP->fx_r_type = BFD_RELOC_PPC_B26;
5694 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5695 && operand->bitm == 0xfffc
5696 && operand->shift == 0)
5698 fixP->fx_r_type = BFD_RELOC_PPC_B16;
5701 if (target_big_endian)
5702 fixP->fx_where += 2;
5705 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5706 && operand->bitm == 0x3fffffc
5707 && operand->shift == 0)
5708 fixP->fx_r_type = BFD_RELOC_PPC_BA26;
5709 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5710 && operand->bitm == 0xfffc
5711 && operand->shift == 0)
5713 fixP->fx_r_type = BFD_RELOC_PPC_BA16;
5716 if (target_big_endian)
5717 fixP->fx_where += 2;
5720 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5721 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
5722 && (operand->bitm & 0xfff0) == 0xfff0
5723 && operand->shift == 0)
5725 if (ppc_is_toc_sym (fixP->fx_addsy))
5727 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
5730 && (operand->flags & PPC_OPERAND_DS) != 0)
5731 fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
5736 fixP->fx_r_type = BFD_RELOC_16;
5739 && (operand->flags & PPC_OPERAND_DS) != 0)
5740 fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS;
5744 if (target_big_endian)
5745 fixP->fx_where += 2;
5747 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5753 /* Use expr_symbol_where to see if this is an expression
5755 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
5756 as_bad_where (fixP->fx_file, fixP->fx_line,
5757 _("unresolved expression that must be resolved"));
5759 as_bad_where (fixP->fx_file, fixP->fx_line,
5760 _("unsupported relocation against %s"),
5761 S_GET_NAME (fixP->fx_addsy));
5769 ppc_elf_validate_fix (fixP, seg);
5771 switch (fixP->fx_r_type)
5773 case BFD_RELOC_CTOR:
5780 fixP->fx_r_type = BFD_RELOC_32_PCREL;
5784 case BFD_RELOC_32_PCREL:
5785 case BFD_RELOC_PPC_EMB_NADDR32:
5786 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5793 fixP->fx_r_type = BFD_RELOC_64_PCREL;
5796 case BFD_RELOC_64_PCREL:
5797 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5801 case BFD_RELOC_GPREL16:
5802 case BFD_RELOC_16_GOT_PCREL:
5803 case BFD_RELOC_16_GOTOFF:
5804 case BFD_RELOC_LO16_GOTOFF:
5805 case BFD_RELOC_HI16_GOTOFF:
5806 case BFD_RELOC_HI16_S_GOTOFF:
5807 case BFD_RELOC_16_BASEREL:
5808 case BFD_RELOC_LO16_BASEREL:
5809 case BFD_RELOC_HI16_BASEREL:
5810 case BFD_RELOC_HI16_S_BASEREL:
5811 case BFD_RELOC_PPC_EMB_NADDR16:
5812 case BFD_RELOC_PPC_EMB_NADDR16_LO:
5813 case BFD_RELOC_PPC_EMB_NADDR16_HI:
5814 case BFD_RELOC_PPC_EMB_NADDR16_HA:
5815 case BFD_RELOC_PPC_EMB_SDAI16:
5816 case BFD_RELOC_PPC_EMB_SDA2REL:
5817 case BFD_RELOC_PPC_EMB_SDA2I16:
5818 case BFD_RELOC_PPC_EMB_RELSEC16:
5819 case BFD_RELOC_PPC_EMB_RELST_LO:
5820 case BFD_RELOC_PPC_EMB_RELST_HI:
5821 case BFD_RELOC_PPC_EMB_RELST_HA:
5822 case BFD_RELOC_PPC_EMB_RELSDA:
5823 case BFD_RELOC_PPC_TOC16:
5825 case BFD_RELOC_PPC64_TOC16_LO:
5826 case BFD_RELOC_PPC64_TOC16_HI:
5827 case BFD_RELOC_PPC64_TOC16_HA:
5831 if (fixP->fx_addsy != NULL)
5832 as_bad_where (fixP->fx_file, fixP->fx_line,
5833 _("cannot emit PC relative %s relocation against %s"),
5834 bfd_get_reloc_code_name (fixP->fx_r_type),
5835 S_GET_NAME (fixP->fx_addsy));
5837 as_bad_where (fixP->fx_file, fixP->fx_line,
5838 _("cannot emit PC relative %s relocation"),
5839 bfd_get_reloc_code_name (fixP->fx_r_type));
5842 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5848 fixP->fx_r_type = BFD_RELOC_16_PCREL;
5851 case BFD_RELOC_16_PCREL:
5852 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5856 case BFD_RELOC_LO16:
5858 fixP->fx_r_type = BFD_RELOC_LO16_PCREL;
5861 case BFD_RELOC_LO16_PCREL:
5862 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5866 /* This case happens when you write, for example,
5868 where L1 and L2 are defined later. */
5869 case BFD_RELOC_HI16:
5871 fixP->fx_r_type = BFD_RELOC_HI16_PCREL;
5874 case BFD_RELOC_HI16_PCREL:
5875 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5879 case BFD_RELOC_HI16_S:
5881 fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL;
5884 case BFD_RELOC_HI16_S_PCREL:
5885 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5890 case BFD_RELOC_PPC64_HIGHER:
5893 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5894 PPC_HIGHER (value), 2);
5897 case BFD_RELOC_PPC64_HIGHER_S:
5900 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5901 PPC_HIGHERA (value), 2);
5904 case BFD_RELOC_PPC64_HIGHEST:
5907 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5908 PPC_HIGHEST (value), 2);
5911 case BFD_RELOC_PPC64_HIGHEST_S:
5914 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5915 PPC_HIGHESTA (value), 2);
5918 case BFD_RELOC_PPC64_ADDR16_DS:
5919 case BFD_RELOC_PPC64_ADDR16_LO_DS:
5920 case BFD_RELOC_PPC64_GOT16_DS:
5921 case BFD_RELOC_PPC64_GOT16_LO_DS:
5922 case BFD_RELOC_PPC64_PLT16_LO_DS:
5923 case BFD_RELOC_PPC64_SECTOFF_DS:
5924 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
5925 case BFD_RELOC_PPC64_TOC16_DS:
5926 case BFD_RELOC_PPC64_TOC16_LO_DS:
5927 case BFD_RELOC_PPC64_PLTGOT16_DS:
5928 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
5932 char *where = fixP->fx_frag->fr_literal + fixP->fx_where;
5933 unsigned long val, mask;
5935 if (target_big_endian)
5936 val = bfd_getb32 (where - 2);
5938 val = bfd_getl32 (where);
5940 /* lq insns reserve the four lsbs. */
5941 if ((ppc_cpu & PPC_OPCODE_POWER4) != 0
5942 && (val & (0x3f << 26)) == (56u << 26))
5944 val |= value & mask;
5945 if (target_big_endian)
5946 bfd_putb16 ((bfd_vma) val, where);
5948 bfd_putl16 ((bfd_vma) val, where);
5952 case BFD_RELOC_PPC_B16_BRTAKEN:
5953 case BFD_RELOC_PPC_B16_BRNTAKEN:
5954 case BFD_RELOC_PPC_BA16_BRTAKEN:
5955 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5958 case BFD_RELOC_PPC_TLS:
5959 case BFD_RELOC_PPC_TLSLD:
5960 case BFD_RELOC_PPC_TLSGD:
5963 case BFD_RELOC_PPC_DTPMOD:
5964 case BFD_RELOC_PPC_TPREL16:
5965 case BFD_RELOC_PPC_TPREL16_LO:
5966 case BFD_RELOC_PPC_TPREL16_HI:
5967 case BFD_RELOC_PPC_TPREL16_HA:
5968 case BFD_RELOC_PPC_TPREL:
5969 case BFD_RELOC_PPC_DTPREL16:
5970 case BFD_RELOC_PPC_DTPREL16_LO:
5971 case BFD_RELOC_PPC_DTPREL16_HI:
5972 case BFD_RELOC_PPC_DTPREL16_HA:
5973 case BFD_RELOC_PPC_DTPREL:
5974 case BFD_RELOC_PPC_GOT_TLSGD16:
5975 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
5976 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
5977 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
5978 case BFD_RELOC_PPC_GOT_TLSLD16:
5979 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
5980 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
5981 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
5982 case BFD_RELOC_PPC_GOT_TPREL16:
5983 case BFD_RELOC_PPC_GOT_TPREL16_LO:
5984 case BFD_RELOC_PPC_GOT_TPREL16_HI:
5985 case BFD_RELOC_PPC_GOT_TPREL16_HA:
5986 case BFD_RELOC_PPC_GOT_DTPREL16:
5987 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
5988 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
5989 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
5990 case BFD_RELOC_PPC64_TPREL16_DS:
5991 case BFD_RELOC_PPC64_TPREL16_LO_DS:
5992 case BFD_RELOC_PPC64_TPREL16_HIGHER:
5993 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
5994 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
5995 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
5996 case BFD_RELOC_PPC64_DTPREL16_DS:
5997 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
5998 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
5999 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
6000 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
6001 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
6002 S_SET_THREAD_LOCAL (fixP->fx_addsy);
6005 /* Because SDA21 modifies the register field, the size is set to 4
6006 bytes, rather than 2, so offset it here appropriately. */
6007 case BFD_RELOC_PPC_EMB_SDA21:
6011 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where
6012 + ((target_big_endian) ? 2 : 0),
6019 /* This can occur if there is a bug in the input assembler, eg:
6020 ".byte <undefined_symbol> - ." */
6022 as_bad (_("Unable to handle reference to symbol %s"),
6023 S_GET_NAME (fixP->fx_addsy));
6025 as_bad (_("Unable to resolve expression"));
6029 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6033 case BFD_RELOC_24_PLT_PCREL:
6034 case BFD_RELOC_PPC_LOCAL24PC:
6035 if (!fixP->fx_pcrel && !fixP->fx_done)
6043 /* Fetch the instruction, insert the fully resolved operand
6044 value, and stuff the instruction back again. */
6045 where = fixP->fx_frag->fr_literal + fixP->fx_where;
6046 if (target_big_endian)
6047 insn = bfd_getb32 ((unsigned char *) where);
6049 insn = bfd_getl32 ((unsigned char *) where);
6050 if ((value & 3) != 0)
6051 as_bad_where (fixP->fx_file, fixP->fx_line,
6052 _("must branch to an address a multiple of 4"));
6053 if ((offsetT) value < -0x40000000
6054 || (offsetT) value >= 0x40000000)
6055 as_bad_where (fixP->fx_file, fixP->fx_line,
6056 _("@local or @plt branch destination is too far away, %ld bytes"),
6058 insn = insn | (value & 0x03fffffc);
6059 if (target_big_endian)
6060 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
6062 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
6066 case BFD_RELOC_VTABLE_INHERIT:
6069 && !S_IS_DEFINED (fixP->fx_addsy)
6070 && !S_IS_WEAK (fixP->fx_addsy))
6071 S_SET_WEAK (fixP->fx_addsy);
6074 case BFD_RELOC_VTABLE_ENTRY:
6079 /* Generated by reference to `sym@tocbase'. The sym is
6080 ignored by the linker. */
6081 case BFD_RELOC_PPC64_TOC:
6087 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
6094 fixP->fx_addnumber = value;
6096 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6097 from the section contents. If we are going to be emitting a reloc
6098 then the section contents are immaterial, so don't warn if they
6099 happen to overflow. Leave such warnings to ld. */
6101 fixP->fx_no_overflow = 1;
6103 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
6104 fixP->fx_addnumber = 0;
6108 fixP->fx_addnumber = 0;
6110 /* We want to use the offset within the data segment of the
6111 symbol, not the actual VMA of the symbol. */
6112 fixP->fx_addnumber =
6113 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy));
6119 /* Generate a reloc for a fixup. */
6122 tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
6126 reloc = (arelent *) xmalloc (sizeof (arelent));
6128 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
6129 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
6130 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
6131 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
6132 if (reloc->howto == (reloc_howto_type *) NULL)
6134 as_bad_where (fixp->fx_file, fixp->fx_line,
6135 _("reloc %d not supported by object file format"),
6136 (int) fixp->fx_r_type);
6139 reloc->addend = fixp->fx_addnumber;
6145 ppc_cfi_frame_initial_instructions (void)
6147 cfi_add_CFA_def_cfa (1, 0);
6151 tc_ppc_regname_to_dw2regnum (char *regname)
6153 unsigned int regnum = -1;
6157 static struct { char *name; int dw2regnum; } regnames[] =
6159 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6160 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6161 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6162 { "spe_acc", 111 }, { "spefscr", 112 }
6165 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
6166 if (strcmp (regnames[i].name, regname) == 0)
6167 return regnames[i].dw2regnum;
6169 if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v')
6171 p = regname + 1 + (regname[1] == '.');
6172 regnum = strtoul (p, &q, 10);
6173 if (p == q || *q || regnum >= 32)
6175 if (regname[0] == 'f')
6177 else if (regname[0] == 'v')
6180 else if (regname[0] == 'c' && regname[1] == 'r')
6182 p = regname + 2 + (regname[2] == '.');
6183 if (p[0] < '0' || p[0] > '7' || p[1])
6185 regnum = p[0] - '0' + 68;