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 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, 59 Temple Place - Suite 330, Boston, MA
25 #include "safe-ctype.h"
28 #include "opcode/ppc.h"
32 #include "dwarf2dbg.h"
39 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
41 /* Tell the main code what the endianness is. */
42 extern int target_big_endian;
44 /* Whether or not, we've set target_big_endian. */
45 static int set_target_endian = 0;
47 /* Whether to use user friendly register names. */
48 #ifndef TARGET_REG_NAMES_P
50 #define TARGET_REG_NAMES_P TRUE
52 #define TARGET_REG_NAMES_P FALSE
56 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
59 /* #lo(value) denotes the least significant 16 bits of the indicated. */
60 #define PPC_LO(v) ((v) & 0xffff)
62 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
63 #define PPC_HI(v) (((v) >> 16) & 0xffff)
65 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
66 the indicated value, compensating for #lo() being treated as a
68 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
70 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
71 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
73 /* #highera(value) denotes bits 32 through 47 of the indicated value,
74 compensating for #lo() being treated as a signed number. */
75 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
77 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
78 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
80 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
81 compensating for #lo being treated as a signed number. */
82 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
84 #define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000)
86 static bfd_boolean reg_names_p = TARGET_REG_NAMES_P;
88 static bfd_boolean register_name PARAMS ((expressionS *));
89 static void ppc_set_cpu PARAMS ((void));
90 static unsigned long ppc_insert_operand
91 PARAMS ((unsigned long insn, const struct powerpc_operand *operand,
92 offsetT val, char *file, unsigned int line));
93 static void ppc_macro PARAMS ((char *str, const struct powerpc_macro *macro));
94 static void ppc_byte PARAMS ((int));
96 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
97 static int ppc_is_toc_sym PARAMS ((symbolS *sym));
98 static void ppc_tc PARAMS ((int));
99 static void ppc_machine PARAMS ((int));
103 static void ppc_comm PARAMS ((int));
104 static void ppc_bb PARAMS ((int));
105 static void ppc_bc PARAMS ((int));
106 static void ppc_bf PARAMS ((int));
107 static void ppc_biei PARAMS ((int));
108 static void ppc_bs PARAMS ((int));
109 static void ppc_eb PARAMS ((int));
110 static void ppc_ec PARAMS ((int));
111 static void ppc_ef PARAMS ((int));
112 static void ppc_es PARAMS ((int));
113 static void ppc_csect PARAMS ((int));
114 static void ppc_change_csect PARAMS ((symbolS *));
115 static void ppc_function PARAMS ((int));
116 static void ppc_extern PARAMS ((int));
117 static void ppc_lglobl PARAMS ((int));
118 static void ppc_section PARAMS ((int));
119 static void ppc_named_section PARAMS ((int));
120 static void ppc_stabx PARAMS ((int));
121 static void ppc_rename PARAMS ((int));
122 static void ppc_toc PARAMS ((int));
123 static void ppc_xcoff_cons PARAMS ((int));
124 static void ppc_vbyte PARAMS ((int));
128 static bfd_reloc_code_real_type ppc_elf_suffix PARAMS ((char **, expressionS *));
129 static void ppc_elf_cons PARAMS ((int));
130 static void ppc_elf_rdata PARAMS ((int));
131 static void ppc_elf_lcomm PARAMS ((int));
132 static void ppc_elf_validate_fix PARAMS ((fixS *, segT));
133 static void ppc_apuinfo_section_add PARAMS ((unsigned int apu, unsigned int version));
137 static void ppc_set_current_section PARAMS ((segT));
138 static void ppc_previous PARAMS ((int));
139 static void ppc_pdata PARAMS ((int));
140 static void ppc_ydata PARAMS ((int));
141 static void ppc_reldata PARAMS ((int));
142 static void ppc_rdata PARAMS ((int));
143 static void ppc_ualong PARAMS ((int));
144 static void ppc_znop PARAMS ((int));
145 static void ppc_pe_comm PARAMS ((int));
146 static void ppc_pe_section PARAMS ((int));
147 static void ppc_pe_function PARAMS ((int));
148 static void ppc_pe_tocd PARAMS ((int));
151 /* Generic assembler global variables which must be defined by all
155 /* This string holds the chars that always start a comment. If the
156 pre-processor is disabled, these aren't very useful. The macro
157 tc_comment_chars points to this. We use this, rather than the
158 usual comment_chars, so that we can switch for Solaris conventions. */
159 static const char ppc_solaris_comment_chars[] = "#!";
160 static const char ppc_eabi_comment_chars[] = "#";
162 #ifdef TARGET_SOLARIS_COMMENT
163 const char *ppc_comment_chars = ppc_solaris_comment_chars;
165 const char *ppc_comment_chars = ppc_eabi_comment_chars;
168 const char comment_chars[] = "#";
171 /* Characters which start a comment at the beginning of a line. */
172 const char line_comment_chars[] = "#";
174 /* Characters which may be used to separate multiple commands on a
176 const char line_separator_chars[] = ";";
178 /* Characters which are used to indicate an exponent in a floating
180 const char EXP_CHARS[] = "eE";
182 /* Characters which mean that a number is a floating point constant,
184 const char FLT_CHARS[] = "dD";
186 /* The target specific pseudo-ops which we support. */
188 const pseudo_typeS md_pseudo_table[] =
190 /* Pseudo-ops which must be overridden. */
191 { "byte", ppc_byte, 0 },
194 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
195 legitimately belong in the obj-*.c file. However, XCOFF is based
196 on COFF, and is only implemented for the RS/6000. We just use
197 obj-coff.c, and add what we need here. */
198 { "comm", ppc_comm, 0 },
199 { "lcomm", ppc_comm, 1 },
203 { "bi", ppc_biei, 0 },
205 { "csect", ppc_csect, 0 },
206 { "data", ppc_section, 'd' },
210 { "ei", ppc_biei, 1 },
212 { "extern", ppc_extern, 0 },
213 { "function", ppc_function, 0 },
214 { "lglobl", ppc_lglobl, 0 },
215 { "rename", ppc_rename, 0 },
216 { "section", ppc_named_section, 0 },
217 { "stabx", ppc_stabx, 0 },
218 { "text", ppc_section, 't' },
219 { "toc", ppc_toc, 0 },
220 { "long", ppc_xcoff_cons, 2 },
221 { "llong", ppc_xcoff_cons, 3 },
222 { "word", ppc_xcoff_cons, 1 },
223 { "short", ppc_xcoff_cons, 1 },
224 { "vbyte", ppc_vbyte, 0 },
228 { "llong", ppc_elf_cons, 8 },
229 { "quad", ppc_elf_cons, 8 },
230 { "long", ppc_elf_cons, 4 },
231 { "word", ppc_elf_cons, 2 },
232 { "short", ppc_elf_cons, 2 },
233 { "rdata", ppc_elf_rdata, 0 },
234 { "rodata", ppc_elf_rdata, 0 },
235 { "lcomm", ppc_elf_lcomm, 0 },
236 { "file", (void (*) PARAMS ((int))) dwarf2_directive_file, 0 },
237 { "loc", dwarf2_directive_loc, 0 },
241 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
242 { "previous", ppc_previous, 0 },
243 { "pdata", ppc_pdata, 0 },
244 { "ydata", ppc_ydata, 0 },
245 { "reldata", ppc_reldata, 0 },
246 { "rdata", ppc_rdata, 0 },
247 { "ualong", ppc_ualong, 0 },
248 { "znop", ppc_znop, 0 },
249 { "comm", ppc_pe_comm, 0 },
250 { "lcomm", ppc_pe_comm, 1 },
251 { "section", ppc_pe_section, 0 },
252 { "function", ppc_pe_function,0 },
253 { "tocd", ppc_pe_tocd, 0 },
256 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
258 { "machine", ppc_machine, 0 },
265 /* Predefined register names if -mregnames (or default for Windows NT).
266 In general, there are lots of them, in an attempt to be compatible
267 with a number of other Windows NT assemblers. */
269 /* Structure to hold information about predefined registers. */
276 /* List of registers that are pre-defined:
278 Each general register has predefined names of the form:
279 1. r<reg_num> which has the value <reg_num>.
280 2. r.<reg_num> which has the value <reg_num>.
282 Each floating point register has predefined names of the form:
283 1. f<reg_num> which has the value <reg_num>.
284 2. f.<reg_num> which has the value <reg_num>.
286 Each vector unit register has predefined names of the form:
287 1. v<reg_num> which has the value <reg_num>.
288 2. v.<reg_num> which has the value <reg_num>.
290 Each condition register has predefined names of the form:
291 1. cr<reg_num> which has the value <reg_num>.
292 2. cr.<reg_num> which has the value <reg_num>.
294 There are individual registers as well:
295 sp or r.sp has the value 1
296 rtoc or r.toc has the value 2
297 fpscr has the value 0
303 dsisr has the value 18
305 sdr1 has the value 25
306 srr0 has the value 26
307 srr1 has the value 27
309 The table is sorted. Suitable for searching by a binary search. */
311 static const struct pd_reg pre_defined_registers[] =
313 { "cr.0", 0 }, /* Condition Registers */
333 { "dar", 19 }, /* Data Access Register */
334 { "dec", 22 }, /* Decrementer */
335 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
337 { "f.0", 0 }, /* Floating point registers */
405 { "lr", 8 }, /* Link Register */
409 { "r.0", 0 }, /* General Purpose Registers */
442 { "r.sp", 1 }, /* Stack Pointer */
444 { "r.toc", 2 }, /* Pointer to the table of contents */
446 { "r0", 0 }, /* More general purpose registers */
479 { "rtoc", 2 }, /* Table of contents */
481 { "sdr1", 25 }, /* Storage Description Register 1 */
485 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
486 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
488 { "v.0", 0 }, /* Vector registers */
558 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
560 /* Given NAME, find the register number associated with that name, return
561 the integer value associated with the given name or -1 on failure. */
563 static int reg_name_search
564 PARAMS ((const struct pd_reg *, int, const char * name));
567 reg_name_search (regs, regcount, name)
568 const struct pd_reg *regs;
572 int middle, low, high;
580 middle = (low + high) / 2;
581 cmp = strcasecmp (name, regs[middle].name);
587 return regs[middle].value;
595 * Summary of register_name.
597 * in: Input_line_pointer points to 1st char of operand.
599 * out: A expressionS.
600 * The operand may have been a register: in this case, X_op == O_register,
601 * X_add_number is set to the register number, and truth is returned.
602 * Input_line_pointer->(next non-blank) char after operand, or is in its
607 register_name (expressionP)
608 expressionS *expressionP;
615 /* Find the spelling of the operand. */
616 start = name = input_line_pointer;
617 if (name[0] == '%' && ISALPHA (name[1]))
618 name = ++input_line_pointer;
620 else if (!reg_names_p || !ISALPHA (name[0]))
623 c = get_symbol_end ();
624 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
626 /* Put back the delimiting char. */
627 *input_line_pointer = c;
629 /* Look to see if it's in the register table. */
632 expressionP->X_op = O_register;
633 expressionP->X_add_number = reg_number;
635 /* Make the rest nice. */
636 expressionP->X_add_symbol = NULL;
637 expressionP->X_op_symbol = NULL;
641 /* Reset the line as if we had not done anything. */
642 input_line_pointer = start;
646 /* This function is called for each symbol seen in an expression. It
647 handles the special parsing which PowerPC assemblers are supposed
648 to use for condition codes. */
650 /* Whether to do the special parsing. */
651 static bfd_boolean cr_operand;
653 /* Names to recognize in a condition code. This table is sorted. */
654 static const struct pd_reg cr_names[] =
671 /* Parsing function. This returns non-zero if it recognized an
675 ppc_parse_name (name, expr)
684 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
689 expr->X_op = O_constant;
690 expr->X_add_number = val;
695 /* Local variables. */
697 /* The type of processor we are assembling for. This is one or more
698 of the PPC_OPCODE flags defined in opcode/ppc.h. */
699 static unsigned long ppc_cpu = 0;
701 /* Whether to target xcoff64/elf64. */
702 static unsigned int ppc_obj64 = BFD_DEFAULT_TARGET_SIZE == 64;
704 /* Opcode hash table. */
705 static struct hash_control *ppc_hash;
707 /* Macro hash table. */
708 static struct hash_control *ppc_macro_hash;
711 /* What type of shared library support to use. */
712 static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE;
714 /* Flags to set in the elf header. */
715 static flagword ppc_flags = 0;
717 /* Whether this is Solaris or not. */
718 #ifdef TARGET_SOLARIS_COMMENT
719 #define SOLARIS_P TRUE
721 #define SOLARIS_P FALSE
724 static bfd_boolean msolaris = SOLARIS_P;
729 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
730 using a bunch of different sections. These assembler sections,
731 however, are all encompassed within the .text or .data sections of
732 the final output file. We handle this by using different
733 subsegments within these main segments. */
735 /* Next subsegment to allocate within the .text segment. */
736 static subsegT ppc_text_subsegment = 2;
738 /* Linked list of csects in the text section. */
739 static symbolS *ppc_text_csects;
741 /* Next subsegment to allocate within the .data segment. */
742 static subsegT ppc_data_subsegment = 2;
744 /* Linked list of csects in the data section. */
745 static symbolS *ppc_data_csects;
747 /* The current csect. */
748 static symbolS *ppc_current_csect;
750 /* The RS/6000 assembler uses a TOC which holds addresses of functions
751 and variables. Symbols are put in the TOC with the .tc pseudo-op.
752 A special relocation is used when accessing TOC entries. We handle
753 the TOC as a subsegment within the .data segment. We set it up if
754 we see a .toc pseudo-op, and save the csect symbol here. */
755 static symbolS *ppc_toc_csect;
757 /* The first frag in the TOC subsegment. */
758 static fragS *ppc_toc_frag;
760 /* The first frag in the first subsegment after the TOC in the .data
761 segment. NULL if there are no subsegments after the TOC. */
762 static fragS *ppc_after_toc_frag;
764 /* The current static block. */
765 static symbolS *ppc_current_block;
767 /* The COFF debugging section; set by md_begin. This is not the
768 .debug section, but is instead the secret BFD section which will
769 cause BFD to set the section number of a symbol to N_DEBUG. */
770 static asection *ppc_coff_debug_section;
772 #endif /* OBJ_XCOFF */
776 /* Various sections that we need for PE coff support. */
777 static segT ydata_section;
778 static segT pdata_section;
779 static segT reldata_section;
780 static segT rdata_section;
781 static segT tocdata_section;
783 /* The current section and the previous section. See ppc_previous. */
784 static segT ppc_previous_section;
785 static segT ppc_current_section;
790 symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
791 #define PPC_APUINFO_ISEL 0x40
792 #define PPC_APUINFO_PMR 0x41
793 #define PPC_APUINFO_RFMCI 0x42
794 #define PPC_APUINFO_CACHELCK 0x43
795 #define PPC_APUINFO_SPE 0x100
796 #define PPC_APUINFO_EFS 0x101
797 #define PPC_APUINFO_BRLOCK 0x102
800 * We keep a list of APUinfo
802 unsigned long *ppc_apuinfo_list;
803 unsigned int ppc_apuinfo_num;
804 unsigned int ppc_apuinfo_num_alloc;
808 const char *const md_shortopts = "b:l:usm:K:VQ:";
810 const char *const md_shortopts = "um:";
812 const struct option md_longopts[] = {
813 {NULL, no_argument, NULL, 0}
815 const size_t md_longopts_size = sizeof (md_longopts);
818 md_parse_option (c, arg)
825 /* -u means that any undefined symbols should be treated as
826 external, which is the default for gas anyhow. */
831 /* Solaris as takes -le (presumably for little endian). For completeness
832 sake, recognize -be also. */
833 if (strcmp (arg, "e") == 0)
835 target_big_endian = 0;
836 set_target_endian = 1;
844 if (strcmp (arg, "e") == 0)
846 target_big_endian = 1;
847 set_target_endian = 1;
855 /* Recognize -K PIC. */
856 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
859 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
867 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
869 if (strcmp (arg, "64") == 0)
874 as_fatal (_("%s unsupported"), "-a64");
877 else if (strcmp (arg, "32") == 0)
884 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
886 if (strcmp (arg, "pwrx") == 0 || strcmp (arg, "pwr2") == 0)
887 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32;
888 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
889 else if (strcmp (arg, "pwr") == 0)
890 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32;
891 /* -m601 means to assemble for the PowerPC 601, which includes
892 instructions that are holdovers from the Power. */
893 else if (strcmp (arg, "601") == 0)
894 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
895 | PPC_OPCODE_601 | PPC_OPCODE_32);
896 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
898 else if (strcmp (arg, "ppc") == 0
899 || strcmp (arg, "ppc32") == 0
900 || strcmp (arg, "603") == 0
901 || strcmp (arg, "604") == 0)
902 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
903 /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */
904 else if (strcmp (arg, "403") == 0
905 || strcmp (arg, "405") == 0)
906 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
907 | PPC_OPCODE_403 | PPC_OPCODE_32);
908 else if (strcmp (arg, "7400") == 0
909 || strcmp (arg, "7410") == 0
910 || strcmp (arg, "7450") == 0
911 || strcmp (arg, "7455") == 0)
912 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
913 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_32);
914 else if (strcmp (arg, "altivec") == 0)
917 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC;
919 ppc_cpu |= PPC_OPCODE_ALTIVEC;
921 else if (strcmp (arg, "e500") == 0 || strcmp (arg, "e500x2") == 0)
923 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
924 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
925 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
928 else if (strcmp (arg, "spe") == 0)
931 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_SPE | PPC_OPCODE_EFS;
933 ppc_cpu |= PPC_OPCODE_SPE;
935 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
937 else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0)
939 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
941 else if (strcmp (arg, "ppc64bridge") == 0)
943 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
944 | PPC_OPCODE_64_BRIDGE | PPC_OPCODE_64);
946 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
947 else if (strcmp (arg, "booke") == 0 || strcmp (arg, "booke32") == 0)
949 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32;
951 /* -mbooke64 means enable 64-bit BookE support. */
952 else if (strcmp (arg, "booke64") == 0)
954 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE
955 | PPC_OPCODE_BOOKE64 | PPC_OPCODE_64);
957 else if (strcmp (arg, "power4") == 0)
959 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
960 | PPC_OPCODE_64 | PPC_OPCODE_POWER4);
962 /* -mcom means assemble for the common intersection between Power
963 and PowerPC. At present, we just allow the union, rather
964 than the intersection. */
965 else if (strcmp (arg, "com") == 0)
966 ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32;
967 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
968 else if (strcmp (arg, "any") == 0)
969 ppc_cpu = PPC_OPCODE_ANY | PPC_OPCODE_32;
971 else if (strcmp (arg, "regnames") == 0)
974 else if (strcmp (arg, "no-regnames") == 0)
978 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
979 that require relocation. */
980 else if (strcmp (arg, "relocatable") == 0)
982 shlib = SHLIB_MRELOCATABLE;
983 ppc_flags |= EF_PPC_RELOCATABLE;
986 else if (strcmp (arg, "relocatable-lib") == 0)
988 shlib = SHLIB_MRELOCATABLE;
989 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
992 /* -memb, set embedded bit. */
993 else if (strcmp (arg, "emb") == 0)
994 ppc_flags |= EF_PPC_EMB;
996 /* -mlittle/-mbig set the endianess. */
997 else if (strcmp (arg, "little") == 0
998 || strcmp (arg, "little-endian") == 0)
1000 target_big_endian = 0;
1001 set_target_endian = 1;
1004 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1006 target_big_endian = 1;
1007 set_target_endian = 1;
1010 else if (strcmp (arg, "solaris") == 0)
1013 ppc_comment_chars = ppc_solaris_comment_chars;
1016 else if (strcmp (arg, "no-solaris") == 0)
1019 ppc_comment_chars = ppc_eabi_comment_chars;
1024 as_bad (_("invalid switch -m%s"), arg);
1030 /* -V: SVR4 argument to print version ID. */
1032 print_version_id ();
1035 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1036 should be emitted or not. FIXME: Not implemented. */
1040 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1041 rather than .stabs.excl, which is ignored by the linker.
1042 FIXME: Not implemented. */
1058 md_show_usage (stream)
1061 fprintf (stream, _("\
1064 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1065 -mpwr generate code for POWER (RIOS1)\n\
1066 -m601 generate code for PowerPC 601\n\
1067 -mppc, -mppc32, -m603, -m604\n\
1068 generate code for PowerPC 603/604\n\
1069 -m403, -m405 generate code for PowerPC 403/405\n\
1070 -m7400, -m7410, -m7450, -m7455\n\
1071 generate code For PowerPC 7400/7410/7450/7455\n\
1072 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1073 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1074 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1075 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1076 -mpower4 generate code for Power4 architecture\n\
1077 -maltivec generate code for AltiVec\n\
1078 -mcom generate code Power/PowerPC common instructions\n\
1079 -many generate code for any architecture (PWR/PWRX/PPC)\n\
1080 -mregnames Allow symbolic names for registers\n\
1081 -mno-regnames Do not allow symbolic names for registers\n"));
1082 fprintf (stream, _("\
1083 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1084 -mspe generate code for Motorola SPE instructions\n"));
1086 fprintf (stream, _("\
1087 -mrelocatable support for GCC's -mrelocatble option\n\
1088 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1089 -memb set PPC_EMB bit in ELF flags\n\
1090 -mlittle, -mlittle-endian\n\
1091 generate code for a little endian machine\n\
1092 -mbig, -mbig-endian generate code for a big endian machine\n\
1093 -msolaris generate code for Solaris\n\
1094 -mno-solaris do not generate code for Solaris\n\
1095 -V print assembler version number\n\
1096 -Qy, -Qn ignored\n"));
1100 /* Set ppc_cpu if it is not already set. */
1105 const char *default_os = TARGET_OS;
1106 const char *default_cpu = TARGET_CPU;
1111 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1112 else if (strncmp (default_os, "aix", 3) == 0
1113 && default_os[3] >= '4' && default_os[3] <= '9')
1114 ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32;
1115 else if (strncmp (default_os, "aix3", 4) == 0)
1116 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32;
1117 else if (strcmp (default_cpu, "rs6000") == 0)
1118 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32;
1119 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1121 if (default_cpu[7] == '6' && default_cpu[8] == '4')
1122 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1124 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
1127 as_fatal (_("Unknown default cpu = %s, os = %s"),
1128 default_cpu, default_os);
1132 /* Figure out the BFD architecture to use. */
1134 enum bfd_architecture
1137 const char *default_cpu = TARGET_CPU;
1140 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1141 return bfd_arch_powerpc;
1142 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1143 return bfd_arch_rs6000;
1144 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1146 if (strcmp (default_cpu, "rs6000") == 0)
1147 return bfd_arch_rs6000;
1148 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1149 return bfd_arch_powerpc;
1152 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1153 return bfd_arch_unknown;
1160 return bfd_mach_ppc64;
1161 else if (ppc_arch () == bfd_arch_rs6000)
1162 return bfd_mach_rs6k;
1164 return bfd_mach_ppc;
1168 ppc_target_format ()
1172 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1174 return "xcoff-powermac";
1177 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1179 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1184 return (target_big_endian
1185 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1186 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1190 /* This function is called when the assembler starts up. It is called
1191 after the options have been parsed and the output file has been
1197 register const struct powerpc_opcode *op;
1198 const struct powerpc_opcode *op_end;
1199 const struct powerpc_macro *macro;
1200 const struct powerpc_macro *macro_end;
1201 bfd_boolean dup_insn = FALSE;
1206 /* Set the ELF flags if desired. */
1207 if (ppc_flags && !msolaris)
1208 bfd_set_private_flags (stdoutput, ppc_flags);
1211 /* Insert the opcodes into a hash table. */
1212 ppc_hash = hash_new ();
1214 op_end = powerpc_opcodes + powerpc_num_opcodes;
1215 for (op = powerpc_opcodes; op < op_end; op++)
1217 know ((op->opcode & op->mask) == op->opcode);
1219 if ((op->flags & ppc_cpu & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) != 0
1220 && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
1221 || ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64))
1222 == (ppc_cpu & (PPC_OPCODE_32 | PPC_OPCODE_64)))
1223 || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0)
1224 /* Certain instructions (eg: extsw) do not exist in the
1225 32-bit BookE instruction set, but they do exist in the
1226 64-bit BookE instruction set, and other PPC instruction
1227 sets. Check to see if the opcode has the BOOKE64 flag set.
1228 If it does make sure that the target CPU is not the BookE32. */
1229 && ((op->flags & PPC_OPCODE_BOOKE64) == 0
1230 || (ppc_cpu & PPC_OPCODE_BOOKE64) == PPC_OPCODE_BOOKE64
1231 || (ppc_cpu & PPC_OPCODE_BOOKE) == 0)
1232 && ((op->flags & (PPC_OPCODE_POWER4 | PPC_OPCODE_NOPOWER4)) == 0
1233 || ((op->flags & PPC_OPCODE_POWER4)
1234 == (ppc_cpu & PPC_OPCODE_POWER4))))
1238 retval = hash_insert (ppc_hash, op->name, (PTR) op);
1239 if (retval != (const char *) NULL)
1241 /* Ignore Power duplicates for -m601. */
1242 if ((ppc_cpu & PPC_OPCODE_601) != 0
1243 && (op->flags & PPC_OPCODE_POWER) != 0)
1246 as_bad (_("Internal assembler error for instruction %s"),
1253 /* Insert the macros into a hash table. */
1254 ppc_macro_hash = hash_new ();
1256 macro_end = powerpc_macros + powerpc_num_macros;
1257 for (macro = powerpc_macros; macro < macro_end; macro++)
1259 if ((macro->flags & ppc_cpu) != 0)
1263 retval = hash_insert (ppc_macro_hash, macro->name, (PTR) macro);
1264 if (retval != (const char *) NULL)
1266 as_bad (_("Internal assembler error for macro %s"), macro->name);
1275 /* Tell the main code what the endianness is if it is not overidden
1277 if (!set_target_endian)
1279 set_target_endian = 1;
1280 target_big_endian = PPC_BIG_ENDIAN;
1284 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1286 /* Create dummy symbols to serve as initial csects. This forces the
1287 text csects to precede the data csects. These symbols will not
1289 ppc_text_csects = symbol_make ("dummy\001");
1290 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1291 ppc_data_csects = symbol_make ("dummy\001");
1292 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1297 ppc_current_section = text_section;
1298 ppc_previous_section = 0;
1307 if (ppc_apuinfo_list == NULL)
1310 /* Ok, so write the section info out. We have this layout:
1314 0 8 length of "APUinfo\0"
1315 4 (n*4) number of APU's (4 bytes each)
1318 20 APU#1 first APU's info
1319 24 APU#2 second APU's info
1324 asection *seg = now_seg;
1325 subsegT subseg = now_subseg;
1326 asection *apuinfo_secp = (asection *) NULL;
1329 /* Create the .PPC.EMB.apuinfo section. */
1330 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1331 bfd_set_section_flags (stdoutput,
1333 SEC_HAS_CONTENTS | SEC_READONLY);
1336 md_number_to_chars (p, (valueT) 8, 4);
1339 md_number_to_chars (p, (valueT) ppc_apuinfo_num, 4);
1342 md_number_to_chars (p, (valueT) 2, 4);
1345 strcpy (p, "APUinfo");
1347 for (i = 0; i < ppc_apuinfo_num; i++)
1350 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1353 frag_align (2, 0, 0);
1355 /* We probably can't restore the current segment, for there likely
1358 subseg_set (seg, subseg);
1363 /* Insert an operand value into an instruction. */
1365 static unsigned long
1366 ppc_insert_operand (insn, operand, val, file, line)
1368 const struct powerpc_operand *operand;
1373 if (operand->bits != 32)
1378 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1380 if ((operand->flags & PPC_OPERAND_SIGNOPT) != 0)
1381 max = (1 << operand->bits) - 1;
1383 max = (1 << (operand->bits - 1)) - 1;
1384 min = - (1 << (operand->bits - 1));
1388 /* Some people write 32 bit hex constants with the sign
1389 extension done by hand. This shouldn't really be
1390 valid, but, to permit this code to assemble on a 64
1391 bit host, we sign extend the 32 bit value. */
1393 && (val & (offsetT) 0x80000000) != 0
1394 && (val & (offsetT) 0xffffffff) == val)
1403 max = (1 << operand->bits) - 1;
1407 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1412 if (test < (offsetT) min || test > (offsetT) max)
1415 _("operand out of range (%s not between %ld and %ld)");
1418 sprint_value (buf, test);
1419 as_bad_where (file, line, err, buf, min, max);
1423 if (operand->insert)
1428 insn = (*operand->insert) (insn, (long) val, ppc_cpu, &errmsg);
1429 if (errmsg != (const char *) NULL)
1430 as_bad_where (file, line, errmsg);
1433 insn |= (((long) val & ((1 << operand->bits) - 1))
1441 /* Parse @got, etc. and return the desired relocation. */
1442 static bfd_reloc_code_real_type
1443 ppc_elf_suffix (str_p, exp_p)
1458 const struct map_bfd *ptr;
1460 #define MAP(str,reloc) { str, sizeof (str)-1, reloc }
1462 static const struct map_bfd mapping[] = {
1463 MAP ("l", (int) BFD_RELOC_LO16),
1464 MAP ("h", (int) BFD_RELOC_HI16),
1465 MAP ("ha", (int) BFD_RELOC_HI16_S),
1466 MAP ("brtaken", (int) BFD_RELOC_PPC_B16_BRTAKEN),
1467 MAP ("brntaken", (int) BFD_RELOC_PPC_B16_BRNTAKEN),
1468 MAP ("got", (int) BFD_RELOC_16_GOTOFF),
1469 MAP ("got@l", (int) BFD_RELOC_LO16_GOTOFF),
1470 MAP ("got@h", (int) BFD_RELOC_HI16_GOTOFF),
1471 MAP ("got@ha", (int) BFD_RELOC_HI16_S_GOTOFF),
1472 MAP ("fixup", (int) BFD_RELOC_CTOR),
1473 MAP ("plt", (int) BFD_RELOC_24_PLT_PCREL),
1474 MAP ("pltrel24", (int) BFD_RELOC_24_PLT_PCREL),
1475 MAP ("copy", (int) BFD_RELOC_PPC_COPY),
1476 MAP ("globdat", (int) BFD_RELOC_PPC_GLOB_DAT),
1477 MAP ("local24pc", (int) BFD_RELOC_PPC_LOCAL24PC),
1478 MAP ("local", (int) BFD_RELOC_PPC_LOCAL24PC),
1479 MAP ("pltrel", (int) BFD_RELOC_32_PLT_PCREL),
1480 MAP ("plt@l", (int) BFD_RELOC_LO16_PLTOFF),
1481 MAP ("plt@h", (int) BFD_RELOC_HI16_PLTOFF),
1482 MAP ("plt@ha", (int) BFD_RELOC_HI16_S_PLTOFF),
1483 MAP ("sdarel", (int) BFD_RELOC_GPREL16),
1484 MAP ("sectoff", (int) BFD_RELOC_16_BASEREL),
1485 MAP ("sectoff@l", (int) BFD_RELOC_LO16_BASEREL),
1486 MAP ("sectoff@h", (int) BFD_RELOC_HI16_BASEREL),
1487 MAP ("sectoff@ha", (int) BFD_RELOC_HI16_S_BASEREL),
1488 MAP ("naddr", (int) BFD_RELOC_PPC_EMB_NADDR32),
1489 MAP ("naddr16", (int) BFD_RELOC_PPC_EMB_NADDR16),
1490 MAP ("naddr@l", (int) BFD_RELOC_PPC_EMB_NADDR16_LO),
1491 MAP ("naddr@h", (int) BFD_RELOC_PPC_EMB_NADDR16_HI),
1492 MAP ("naddr@ha", (int) BFD_RELOC_PPC_EMB_NADDR16_HA),
1493 MAP ("sdai16", (int) BFD_RELOC_PPC_EMB_SDAI16),
1494 MAP ("sda2rel", (int) BFD_RELOC_PPC_EMB_SDA2REL),
1495 MAP ("sda2i16", (int) BFD_RELOC_PPC_EMB_SDA2I16),
1496 MAP ("sda21", (int) BFD_RELOC_PPC_EMB_SDA21),
1497 MAP ("mrkref", (int) BFD_RELOC_PPC_EMB_MRKREF),
1498 MAP ("relsect", (int) BFD_RELOC_PPC_EMB_RELSEC16),
1499 MAP ("relsect@l", (int) BFD_RELOC_PPC_EMB_RELST_LO),
1500 MAP ("relsect@h", (int) BFD_RELOC_PPC_EMB_RELST_HI),
1501 MAP ("relsect@ha", (int) BFD_RELOC_PPC_EMB_RELST_HA),
1502 MAP ("bitfld", (int) BFD_RELOC_PPC_EMB_BIT_FLD),
1503 MAP ("relsda", (int) BFD_RELOC_PPC_EMB_RELSDA),
1504 MAP ("xgot", (int) BFD_RELOC_PPC_TOC16),
1505 MAP ("tls", (int) BFD_RELOC_PPC_TLS),
1506 MAP ("dtpmod", (int) BFD_RELOC_PPC_DTPMOD),
1507 MAP ("dtprel", (int) BFD_RELOC_PPC_DTPREL),
1508 MAP ("dtprel@l", (int) BFD_RELOC_PPC_DTPREL16_LO),
1509 MAP ("dtprel@h", (int) BFD_RELOC_PPC_DTPREL16_HI),
1510 MAP ("dtprel@ha", (int) BFD_RELOC_PPC_DTPREL16_HA),
1511 MAP ("tprel", (int) BFD_RELOC_PPC_TPREL),
1512 MAP ("tprel@l", (int) BFD_RELOC_PPC_TPREL16_LO),
1513 MAP ("tprel@h", (int) BFD_RELOC_PPC_TPREL16_HI),
1514 MAP ("tprel@ha", (int) BFD_RELOC_PPC_TPREL16_HA),
1515 MAP ("got@tlsgd", (int) BFD_RELOC_PPC_GOT_TLSGD16),
1516 MAP ("got@tlsgd@l", (int) BFD_RELOC_PPC_GOT_TLSGD16_LO),
1517 MAP ("got@tlsgd@h", (int) BFD_RELOC_PPC_GOT_TLSGD16_HI),
1518 MAP ("got@tlsgd@ha", (int) BFD_RELOC_PPC_GOT_TLSGD16_HA),
1519 MAP ("got@tlsld", (int) BFD_RELOC_PPC_GOT_TLSLD16),
1520 MAP ("got@tlsld@l", (int) BFD_RELOC_PPC_GOT_TLSLD16_LO),
1521 MAP ("got@tlsld@h", (int) BFD_RELOC_PPC_GOT_TLSLD16_HI),
1522 MAP ("got@tlsld@ha", (int) BFD_RELOC_PPC_GOT_TLSLD16_HA),
1523 MAP ("got@dtprel", (int) BFD_RELOC_PPC_GOT_DTPREL16),
1524 MAP ("got@dtprel@l", (int) BFD_RELOC_PPC_GOT_DTPREL16_LO),
1525 MAP ("got@dtprel@h", (int) BFD_RELOC_PPC_GOT_DTPREL16_HI),
1526 MAP ("got@dtprel@ha", (int) BFD_RELOC_PPC_GOT_DTPREL16_HA),
1527 MAP ("got@tprel", (int) BFD_RELOC_PPC_GOT_TPREL16),
1528 MAP ("got@tprel@l", (int) BFD_RELOC_PPC_GOT_TPREL16_LO),
1529 MAP ("got@tprel@h", (int) BFD_RELOC_PPC_GOT_TPREL16_HI),
1530 MAP ("got@tprel@ha", (int) BFD_RELOC_PPC_GOT_TPREL16_HA),
1531 /* The following are only valid for ppc64. Negative values are
1532 used instead of a flag. */
1533 MAP ("higher", - (int) BFD_RELOC_PPC64_HIGHER),
1534 MAP ("highera", - (int) BFD_RELOC_PPC64_HIGHER_S),
1535 MAP ("highest", - (int) BFD_RELOC_PPC64_HIGHEST),
1536 MAP ("highesta", - (int) BFD_RELOC_PPC64_HIGHEST_S),
1537 MAP ("tocbase", - (int) BFD_RELOC_PPC64_TOC),
1538 MAP ("toc", - (int) BFD_RELOC_PPC_TOC16),
1539 MAP ("toc@l", - (int) BFD_RELOC_PPC64_TOC16_LO),
1540 MAP ("toc@h", - (int) BFD_RELOC_PPC64_TOC16_HI),
1541 MAP ("toc@ha", - (int) BFD_RELOC_PPC64_TOC16_HA),
1542 MAP ("dtprel@higher", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHER),
1543 MAP ("dtprel@highera", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1544 MAP ("dtprel@highest", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1545 MAP ("dtprel@highesta", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1546 MAP ("tprel@higher", - (int) BFD_RELOC_PPC64_TPREL16_HIGHER),
1547 MAP ("tprel@highera", - (int) BFD_RELOC_PPC64_TPREL16_HIGHERA),
1548 MAP ("tprel@highest", - (int) BFD_RELOC_PPC64_TPREL16_HIGHEST),
1549 MAP ("tprel@highesta", - (int) BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1550 { (char *) 0, 0, (int) BFD_RELOC_UNUSED }
1554 return BFD_RELOC_UNUSED;
1556 for (ch = *str, str2 = ident;
1557 (str2 < ident + sizeof (ident) - 1
1558 && (ISALNUM (ch) || ch == '@'));
1561 *str2++ = TOLOWER (ch);
1568 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1569 if (ch == ptr->string[0]
1570 && len == ptr->length
1571 && memcmp (ident, ptr->string, ptr->length) == 0)
1573 int reloc = ptr->reloc;
1578 return BFD_RELOC_UNUSED;
1584 if (exp_p->X_add_number != 0
1585 && (reloc == (int) BFD_RELOC_16_GOTOFF
1586 || reloc == (int) BFD_RELOC_LO16_GOTOFF
1587 || reloc == (int) BFD_RELOC_HI16_GOTOFF
1588 || reloc == (int) BFD_RELOC_HI16_S_GOTOFF))
1589 as_warn (_("identifier+constant@got means identifier@got+constant"));
1591 /* Now check for identifier@suffix+constant. */
1592 if (*str == '-' || *str == '+')
1594 char *orig_line = input_line_pointer;
1595 expressionS new_exp;
1597 input_line_pointer = str;
1598 expression (&new_exp);
1599 if (new_exp.X_op == O_constant)
1601 exp_p->X_add_number += new_exp.X_add_number;
1602 str = input_line_pointer;
1605 if (&input_line_pointer != str_p)
1606 input_line_pointer = orig_line;
1611 if (reloc == (int) BFD_RELOC_PPC64_TOC
1612 && exp_p->X_op == O_symbol)
1614 /* This reloc type ignores the symbol. Change the symbol
1615 so that the dummy .TOC. symbol can be omitted from the
1617 exp_p->X_add_symbol = &abs_symbol;
1620 return (bfd_reloc_code_real_type) reloc;
1623 return BFD_RELOC_UNUSED;
1626 /* Like normal .long/.short/.word, except support @got, etc.
1627 Clobbers input_line_pointer, checks end-of-line. */
1629 ppc_elf_cons (nbytes)
1630 register int nbytes; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */
1633 bfd_reloc_code_real_type reloc;
1635 if (is_it_end_of_statement ())
1637 demand_empty_rest_of_line ();
1644 if (exp.X_op == O_symbol
1645 && *input_line_pointer == '@'
1646 && (reloc = ppc_elf_suffix (&input_line_pointer,
1647 &exp)) != BFD_RELOC_UNUSED)
1649 reloc_howto_type *reloc_howto;
1652 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1653 size = bfd_get_reloc_size (reloc_howto);
1657 as_bad (_("%s relocations do not fit in %d bytes\n"),
1658 reloc_howto->name, nbytes);
1665 p = frag_more (nbytes);
1667 if (target_big_endian)
1668 offset = nbytes - size;
1669 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
1674 emit_expr (&exp, (unsigned int) nbytes);
1676 while (*input_line_pointer++ == ',');
1678 /* Put terminator back into stream. */
1679 input_line_pointer--;
1680 demand_empty_rest_of_line ();
1683 /* Solaris pseduo op to change to the .rodata section. */
1688 char *save_line = input_line_pointer;
1689 static char section[] = ".rodata\n";
1691 /* Just pretend this is .section .rodata */
1692 input_line_pointer = section;
1693 obj_elf_section (xxx);
1695 input_line_pointer = save_line;
1698 /* Pseudo op to make file scope bss items. */
1701 int xxx ATTRIBUTE_UNUSED;
1703 register char *name;
1707 register symbolS *symbolP;
1714 name = input_line_pointer;
1715 c = get_symbol_end ();
1717 /* just after name is now '\0'. */
1718 p = input_line_pointer;
1721 if (*input_line_pointer != ',')
1723 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1724 ignore_rest_of_line ();
1728 input_line_pointer++; /* skip ',' */
1729 if ((size = get_absolute_expression ()) < 0)
1731 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
1732 ignore_rest_of_line ();
1736 /* The third argument to .lcomm is the alignment. */
1737 if (*input_line_pointer != ',')
1741 ++input_line_pointer;
1742 align = get_absolute_expression ();
1745 as_warn (_("ignoring bad alignment"));
1751 symbolP = symbol_find_or_make (name);
1754 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
1756 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1757 S_GET_NAME (symbolP));
1758 ignore_rest_of_line ();
1762 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
1764 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1765 S_GET_NAME (symbolP),
1766 (long) S_GET_VALUE (symbolP),
1769 ignore_rest_of_line ();
1775 old_subsec = now_subseg;
1778 /* Convert to a power of 2 alignment. */
1779 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
1782 as_bad (_("Common alignment not a power of 2"));
1783 ignore_rest_of_line ();
1790 record_alignment (bss_section, align2);
1791 subseg_set (bss_section, 0);
1793 frag_align (align2, 0, 0);
1794 if (S_GET_SEGMENT (symbolP) == bss_section)
1795 symbol_get_frag (symbolP)->fr_symbol = 0;
1796 symbol_set_frag (symbolP, frag_now);
1797 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
1800 S_SET_SIZE (symbolP, size);
1801 S_SET_SEGMENT (symbolP, bss_section);
1802 subseg_set (old_sec, old_subsec);
1803 demand_empty_rest_of_line ();
1806 /* Validate any relocations emitted for -mrelocatable, possibly adding
1807 fixups for word relocations in writable segments, so we can adjust
1810 ppc_elf_validate_fix (fixp, seg)
1814 if (fixp->fx_done || fixp->fx_pcrel)
1823 case SHLIB_MRELOCATABLE:
1824 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
1825 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
1826 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
1827 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
1828 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
1829 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
1830 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
1831 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
1832 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
1833 && (seg->flags & SEC_LOAD) != 0
1834 && strcmp (segment_name (seg), ".got2") != 0
1835 && strcmp (segment_name (seg), ".dtors") != 0
1836 && strcmp (segment_name (seg), ".ctors") != 0
1837 && strcmp (segment_name (seg), ".fixup") != 0
1838 && strcmp (segment_name (seg), ".gcc_except_table") != 0
1839 && strcmp (segment_name (seg), ".eh_frame") != 0
1840 && strcmp (segment_name (seg), ".ex_shared") != 0)
1842 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
1843 || fixp->fx_r_type != BFD_RELOC_CTOR)
1845 as_bad_where (fixp->fx_file, fixp->fx_line,
1846 _("Relocation cannot be done when using -mrelocatable"));
1853 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1854 function descriptor sym if the corresponding code sym is used. */
1857 ppc_frob_file_before_adjust ()
1864 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
1871 name = S_GET_NAME (symp);
1875 if (! S_IS_WEAK (symp)
1876 || S_IS_DEFINED (symp))
1879 len = strlen (name) + 1;
1880 dotname = xmalloc (len + 1);
1882 memcpy (dotname + 1, name, len);
1883 dotsym = symbol_find (dotname);
1885 if (dotsym != NULL && (symbol_used_p (dotsym)
1886 || symbol_used_in_reloc_p (dotsym)))
1888 symbol_mark_used (symp);
1892 /* Don't emit .TOC. symbol. */
1893 symp = symbol_find (".TOC.");
1895 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
1897 #endif /* OBJ_ELF */
1902 * Summary of parse_toc_entry.
1904 * in: Input_line_pointer points to the '[' in one of:
1906 * [toc] [tocv] [toc32] [toc64]
1908 * Anything else is an error of one kind or another.
1911 * return value: success or failure
1912 * toc_kind: kind of toc reference
1913 * input_line_pointer:
1914 * success: first char after the ']'
1915 * failure: unchanged
1919 * [toc] - rv == success, toc_kind = default_toc
1920 * [tocv] - rv == success, toc_kind = data_in_toc
1921 * [toc32] - rv == success, toc_kind = must_be_32
1922 * [toc64] - rv == success, toc_kind = must_be_64
1926 enum toc_size_qualifier
1928 default_toc, /* The toc cell constructed should be the system default size */
1929 data_in_toc, /* This is a direct reference to a toc cell */
1930 must_be_32, /* The toc cell constructed must be 32 bits wide */
1931 must_be_64 /* The toc cell constructed must be 64 bits wide */
1935 parse_toc_entry (toc_kind)
1936 enum toc_size_qualifier *toc_kind;
1941 enum toc_size_qualifier t;
1943 /* Save the input_line_pointer. */
1944 start = input_line_pointer;
1946 /* Skip over the '[' , and whitespace. */
1947 ++input_line_pointer;
1950 /* Find the spelling of the operand. */
1951 toc_spec = input_line_pointer;
1952 c = get_symbol_end ();
1954 if (strcmp (toc_spec, "toc") == 0)
1958 else if (strcmp (toc_spec, "tocv") == 0)
1962 else if (strcmp (toc_spec, "toc32") == 0)
1966 else if (strcmp (toc_spec, "toc64") == 0)
1972 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
1973 *input_line_pointer = c;
1974 input_line_pointer = start;
1978 /* Now find the ']'. */
1979 *input_line_pointer = c;
1981 SKIP_WHITESPACE (); /* leading whitespace could be there. */
1982 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
1986 as_bad (_("syntax error: expected `]', found `%c'"), c);
1987 input_line_pointer = start;
1998 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2000 ppc_apuinfo_section_add (apu, version)
2001 unsigned int apu, version;
2005 /* Check we don't already exist. */
2006 for (i = 0; i < ppc_apuinfo_num; i++)
2007 if (ppc_apuinfo_list[i] == APUID (apu, version))
2010 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2012 if (ppc_apuinfo_num_alloc == 0)
2014 ppc_apuinfo_num_alloc = 4;
2015 ppc_apuinfo_list = (unsigned long *)
2016 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2020 ppc_apuinfo_num_alloc += 4;
2021 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2022 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2025 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2031 /* We need to keep a list of fixups. We can't simply generate them as
2032 we go, because that would require us to first create the frag, and
2033 that would screw up references to ``.''. */
2039 bfd_reloc_code_real_type reloc;
2042 #define MAX_INSN_FIXUPS (5)
2044 /* This routine is called for each instruction to be assembled. */
2051 const struct powerpc_opcode *opcode;
2053 const unsigned char *opindex_ptr;
2057 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2062 bfd_reloc_code_real_type reloc;
2065 /* Get the opcode. */
2066 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2071 /* Look up the opcode in the hash table. */
2072 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2073 if (opcode == (const struct powerpc_opcode *) NULL)
2075 const struct powerpc_macro *macro;
2077 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2078 if (macro == (const struct powerpc_macro *) NULL)
2079 as_bad (_("Unrecognized opcode: `%s'"), str);
2081 ppc_macro (s, macro);
2086 insn = opcode->opcode;
2089 while (ISSPACE (*str))
2092 /* PowerPC operands are just expressions. The only real issue is
2093 that a few operand types are optional. All cases which might use
2094 an optional operand separate the operands only with commas (in
2095 some cases parentheses are used, as in ``lwz 1,0(1)'' but such
2096 cases never have optional operands). There is never more than
2097 one optional operand for an instruction. So, before we start
2098 seriously parsing the operands, we check to see if we have an
2099 optional operand, and, if we do, we count the number of commas to
2100 see whether the operand should be omitted. */
2102 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2104 const struct powerpc_operand *operand;
2106 operand = &powerpc_operands[*opindex_ptr];
2107 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2109 unsigned int opcount;
2110 unsigned int num_operands_expected;
2113 /* There is an optional operand. Count the number of
2114 commas in the input line. */
2121 while ((s = strchr (s, ',')) != (char *) NULL)
2128 /* Compute the number of expected operands.
2129 Do not count fake operands. */
2130 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2131 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2132 ++ num_operands_expected;
2134 /* If there are fewer operands in the line then are called
2135 for by the instruction, we want to skip the optional
2137 if (opcount < num_operands_expected)
2144 /* Gather the operands. */
2148 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2150 const struct powerpc_operand *operand;
2156 if (next_opindex == 0)
2157 operand = &powerpc_operands[*opindex_ptr];
2160 operand = &powerpc_operands[next_opindex];
2165 /* If this is a fake operand, then we do not expect anything
2167 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2169 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2170 if (errmsg != (const char *) NULL)
2175 /* If this is an optional operand, and we are skipping it, just
2177 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2180 if (operand->insert)
2182 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2183 if (errmsg != (const char *) NULL)
2186 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2187 next_opindex = *opindex_ptr + 1;
2191 /* Gather the operand. */
2192 hold = input_line_pointer;
2193 input_line_pointer = str;
2196 if (*input_line_pointer == '[')
2198 /* We are expecting something like the second argument here:
2200 * lwz r4,[toc].GS.0.static_int(rtoc)
2201 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2202 * The argument following the `]' must be a symbol name, and the
2203 * register must be the toc register: 'rtoc' or '2'
2205 * The effect is to 0 as the displacement field
2206 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2207 * the appropriate variation) reloc against it based on the symbol.
2208 * The linker will build the toc, and insert the resolved toc offset.
2211 * o The size of the toc entry is currently assumed to be
2212 * 32 bits. This should not be assumed to be a hard coded
2214 * o In an effort to cope with a change from 32 to 64 bits,
2215 * there are also toc entries that are specified to be
2216 * either 32 or 64 bits:
2217 * lwz r4,[toc32].GS.0.static_int(rtoc)
2218 * lwz r4,[toc64].GS.0.static_int(rtoc)
2219 * These demand toc entries of the specified size, and the
2220 * instruction probably requires it.
2224 enum toc_size_qualifier toc_kind;
2225 bfd_reloc_code_real_type toc_reloc;
2227 /* Go parse off the [tocXX] part. */
2228 valid_toc = parse_toc_entry (&toc_kind);
2232 /* Note: message has already been issued.
2233 FIXME: what sort of recovery should we do?
2234 demand_rest_of_line (); return; ? */
2237 /* Now get the symbol following the ']'. */
2243 /* In this case, we may not have seen the symbol yet,
2244 since it is allowed to appear on a .extern or .globl
2245 or just be a label in the .data section. */
2246 toc_reloc = BFD_RELOC_PPC_TOC16;
2249 /* 1. The symbol must be defined and either in the toc
2250 section, or a global.
2251 2. The reloc generated must have the TOCDEFN flag set
2252 in upper bit mess of the reloc type.
2253 FIXME: It's a little confusing what the tocv
2254 qualifier can be used for. At the very least, I've
2255 seen three uses, only one of which I'm sure I can
2257 if (ex.X_op == O_symbol)
2259 assert (ex.X_add_symbol != NULL);
2260 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2263 as_bad (_("[tocv] symbol is not a toc symbol"));
2267 toc_reloc = BFD_RELOC_PPC_TOC16;
2270 /* FIXME: these next two specifically specify 32/64 bit
2271 toc entries. We don't support them today. Is this
2272 the right way to say that? */
2273 toc_reloc = BFD_RELOC_UNUSED;
2274 as_bad (_("Unimplemented toc32 expression modifier"));
2277 /* FIXME: see above. */
2278 toc_reloc = BFD_RELOC_UNUSED;
2279 as_bad (_("Unimplemented toc64 expression modifier"));
2283 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2289 /* We need to generate a fixup for this expression. */
2290 if (fc >= MAX_INSN_FIXUPS)
2291 as_fatal (_("too many fixups"));
2293 fixups[fc].reloc = toc_reloc;
2294 fixups[fc].exp = ex;
2295 fixups[fc].opindex = *opindex_ptr;
2298 /* Ok. We've set up the fixup for the instruction. Now make it
2299 look like the constant 0 was found here. */
2301 ex.X_op = O_constant;
2302 ex.X_add_number = 0;
2303 ex.X_add_symbol = NULL;
2304 ex.X_op_symbol = NULL;
2310 if (! register_name (&ex))
2312 if ((operand->flags & PPC_OPERAND_CR) != 0)
2319 str = input_line_pointer;
2320 input_line_pointer = hold;
2322 if (ex.X_op == O_illegal)
2323 as_bad (_("illegal operand"));
2324 else if (ex.X_op == O_absent)
2325 as_bad (_("missing operand"));
2326 else if (ex.X_op == O_register)
2328 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2331 else if (ex.X_op == O_constant)
2334 /* Allow @HA, @L, @H on constants. */
2335 char *orig_str = str;
2337 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2344 case BFD_RELOC_LO16:
2345 /* X_unsigned is the default, so if the user has done
2346 something which cleared it, we always produce a
2348 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2349 ex.X_add_number &= 0xffff;
2351 ex.X_add_number = SEX16 (ex.X_add_number);
2354 case BFD_RELOC_HI16:
2355 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2356 ex.X_add_number = PPC_HI (ex.X_add_number);
2358 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
2361 case BFD_RELOC_HI16_S:
2362 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2363 ex.X_add_number = PPC_HA (ex.X_add_number);
2365 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2368 case BFD_RELOC_PPC64_HIGHER:
2369 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2370 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2372 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2375 case BFD_RELOC_PPC64_HIGHER_S:
2376 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2377 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2379 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
2382 case BFD_RELOC_PPC64_HIGHEST:
2383 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2384 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2386 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2389 case BFD_RELOC_PPC64_HIGHEST_S:
2390 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2391 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2393 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2396 #endif /* OBJ_ELF */
2397 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2401 else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2403 /* Some TLS tweaks. */
2408 case BFD_RELOC_PPC_TLS:
2409 insn = ppc_insert_operand (insn, operand, ppc_obj64 ? 13 : 2,
2412 /* We'll only use the 32 (or 64) bit form of these relocations
2413 in constants. Instructions get the 16 bit form. */
2414 case BFD_RELOC_PPC_DTPREL:
2415 reloc = BFD_RELOC_PPC_DTPREL16;
2417 case BFD_RELOC_PPC_TPREL:
2418 reloc = BFD_RELOC_PPC_TPREL16;
2422 /* For the absolute forms of branches, convert the PC
2423 relative form back into the absolute. */
2424 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2428 case BFD_RELOC_PPC_B26:
2429 reloc = BFD_RELOC_PPC_BA26;
2431 case BFD_RELOC_PPC_B16:
2432 reloc = BFD_RELOC_PPC_BA16;
2434 case BFD_RELOC_PPC_B16_BRTAKEN:
2435 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2437 case BFD_RELOC_PPC_B16_BRNTAKEN:
2438 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2446 && (operand->flags & PPC_OPERAND_DS) != 0)
2451 reloc = BFD_RELOC_PPC64_ADDR16_DS;
2453 case BFD_RELOC_LO16:
2454 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
2456 case BFD_RELOC_16_GOTOFF:
2457 reloc = BFD_RELOC_PPC64_GOT16_DS;
2459 case BFD_RELOC_LO16_GOTOFF:
2460 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
2462 case BFD_RELOC_LO16_PLTOFF:
2463 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
2465 case BFD_RELOC_16_BASEREL:
2466 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
2468 case BFD_RELOC_LO16_BASEREL:
2469 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
2471 case BFD_RELOC_PPC_TOC16:
2472 reloc = BFD_RELOC_PPC64_TOC16_DS;
2474 case BFD_RELOC_PPC64_TOC16_LO:
2475 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
2477 case BFD_RELOC_PPC64_PLTGOT16:
2478 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
2480 case BFD_RELOC_PPC64_PLTGOT16_LO:
2481 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
2483 case BFD_RELOC_PPC_DTPREL16:
2484 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
2486 case BFD_RELOC_PPC_DTPREL16_LO:
2487 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
2489 case BFD_RELOC_PPC_TPREL16:
2490 reloc = BFD_RELOC_PPC64_TPREL16_DS;
2492 case BFD_RELOC_PPC_TPREL16_LO:
2493 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
2495 case BFD_RELOC_PPC_GOT_DTPREL16:
2496 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2497 case BFD_RELOC_PPC_GOT_TPREL16:
2498 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2501 as_bad (_("unsupported relocation for DS offset field"));
2506 /* We need to generate a fixup for this expression. */
2507 if (fc >= MAX_INSN_FIXUPS)
2508 as_fatal (_("too many fixups"));
2509 fixups[fc].exp = ex;
2510 fixups[fc].opindex = 0;
2511 fixups[fc].reloc = reloc;
2514 #endif /* OBJ_ELF */
2518 /* We need to generate a fixup for this expression. */
2519 if (fc >= MAX_INSN_FIXUPS)
2520 as_fatal (_("too many fixups"));
2521 fixups[fc].exp = ex;
2522 fixups[fc].opindex = *opindex_ptr;
2523 fixups[fc].reloc = BFD_RELOC_UNUSED;
2532 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
2540 /* The call to expression should have advanced str past any
2543 && (endc != ',' || *str != '\0'))
2545 as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc);
2553 while (ISSPACE (*str))
2557 as_bad (_("junk at end of line: `%s'"), str);
2560 /* Do we need/want a APUinfo section? */
2561 if (ppc_cpu & (PPC_OPCODE_SPE
2562 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS
2563 | PPC_OPCODE_BRLOCK | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
2564 | PPC_OPCODE_RFMCI))
2566 /* These are all version "1". */
2567 if (opcode->flags & PPC_OPCODE_SPE)
2568 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
2569 if (opcode->flags & PPC_OPCODE_ISEL)
2570 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
2571 if (opcode->flags & PPC_OPCODE_EFS)
2572 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
2573 if (opcode->flags & PPC_OPCODE_BRLOCK)
2574 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
2575 if (opcode->flags & PPC_OPCODE_PMR)
2576 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
2577 if (opcode->flags & PPC_OPCODE_CACHELCK)
2578 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
2579 if (opcode->flags & PPC_OPCODE_RFMCI)
2580 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
2584 /* Write out the instruction. */
2586 md_number_to_chars (f, insn, 4);
2589 dwarf2_emit_insn (4);
2592 /* Create any fixups. At this point we do not use a
2593 bfd_reloc_code_real_type, but instead just use the
2594 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2595 handle fixups for any operand type, although that is admittedly
2596 not a very exciting feature. We pick a BFD reloc type in
2598 for (i = 0; i < fc; i++)
2600 const struct powerpc_operand *operand;
2602 operand = &powerpc_operands[fixups[i].opindex];
2603 if (fixups[i].reloc != BFD_RELOC_UNUSED)
2605 reloc_howto_type *reloc_howto;
2610 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
2614 size = bfd_get_reloc_size (reloc_howto);
2615 offset = target_big_endian ? (4 - size) : 0;
2617 if (size < 1 || size > 4)
2620 fixP = fix_new_exp (frag_now,
2621 f - frag_now->fr_literal + offset,
2624 reloc_howto->pc_relative,
2627 /* Turn off complaints that the addend is too large for things like
2629 switch (fixups[i].reloc)
2631 case BFD_RELOC_16_GOTOFF:
2632 case BFD_RELOC_PPC_TOC16:
2633 case BFD_RELOC_LO16:
2634 case BFD_RELOC_HI16:
2635 case BFD_RELOC_HI16_S:
2637 case BFD_RELOC_PPC64_HIGHER:
2638 case BFD_RELOC_PPC64_HIGHER_S:
2639 case BFD_RELOC_PPC64_HIGHEST:
2640 case BFD_RELOC_PPC64_HIGHEST_S:
2642 fixP->fx_no_overflow = 1;
2649 fix_new_exp (frag_now,
2650 f - frag_now->fr_literal,
2653 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
2654 ((bfd_reloc_code_real_type)
2655 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
2659 /* Handle a macro. Gather all the operands, transform them as
2660 described by the macro, and call md_assemble recursively. All the
2661 operands are separated by commas; we don't accept parentheses
2662 around operands here. */
2665 ppc_macro (str, macro)
2667 const struct powerpc_macro *macro;
2678 /* Gather the users operands into the operands array. */
2683 if (count >= sizeof operands / sizeof operands[0])
2685 operands[count++] = s;
2686 s = strchr (s, ',');
2687 if (s == (char *) NULL)
2692 if (count != macro->operands)
2694 as_bad (_("wrong number of operands"));
2698 /* Work out how large the string must be (the size is unbounded
2699 because it includes user input). */
2701 format = macro->format;
2702 while (*format != '\0')
2711 arg = strtol (format + 1, &send, 10);
2712 know (send != format && arg >= 0 && arg < count);
2713 len += strlen (operands[arg]);
2718 /* Put the string together. */
2719 complete = s = (char *) alloca (len + 1);
2720 format = macro->format;
2721 while (*format != '\0')
2727 arg = strtol (format + 1, &send, 10);
2728 strcpy (s, operands[arg]);
2735 /* Assemble the constructed instruction. */
2736 md_assemble (complete);
2740 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2743 ppc_section_letter (letter, ptr_msg)
2750 *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2755 ppc_section_word (str, len)
2759 if (len == 7 && strncmp (str, "exclude", 7) == 0)
2766 ppc_section_type (str, len)
2770 if (len == 7 && strncmp (str, "ordered", 7) == 0)
2777 ppc_section_flags (flags, attr, type)
2782 if (type == SHT_ORDERED)
2783 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
2785 if (attr & SHF_EXCLUDE)
2786 flags |= SEC_EXCLUDE;
2790 #endif /* OBJ_ELF */
2793 /* Pseudo-op handling. */
2795 /* The .byte pseudo-op. This is similar to the normal .byte
2796 pseudo-op, but it can also take a single ASCII string. */
2800 int ignore ATTRIBUTE_UNUSED;
2802 if (*input_line_pointer != '\"')
2808 /* Gather characters. A real double quote is doubled. Unusual
2809 characters are not permitted. */
2810 ++input_line_pointer;
2815 c = *input_line_pointer++;
2819 if (*input_line_pointer != '\"')
2821 ++input_line_pointer;
2824 FRAG_APPEND_1_CHAR (c);
2827 demand_empty_rest_of_line ();
2832 /* XCOFF specific pseudo-op handling. */
2834 /* This is set if we are creating a .stabx symbol, since we don't want
2835 to handle symbol suffixes for such symbols. */
2836 static bfd_boolean ppc_stab_symbol;
2838 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2839 symbols in the .bss segment as though they were local common
2840 symbols, and uses a different smclas. The native Aix 4.3.3 assember
2841 aligns .comm and .lcomm to 4 bytes. */
2847 asection *current_seg = now_seg;
2848 subsegT current_subseg = now_subseg;
2854 symbolS *lcomm_sym = NULL;
2858 name = input_line_pointer;
2859 endc = get_symbol_end ();
2860 end_name = input_line_pointer;
2863 if (*input_line_pointer != ',')
2865 as_bad (_("missing size"));
2866 ignore_rest_of_line ();
2869 ++input_line_pointer;
2871 size = get_absolute_expression ();
2874 as_bad (_("negative size"));
2875 ignore_rest_of_line ();
2881 /* The third argument to .comm is the alignment. */
2882 if (*input_line_pointer != ',')
2886 ++input_line_pointer;
2887 align = get_absolute_expression ();
2890 as_warn (_("ignoring bad alignment"));
2905 /* The third argument to .lcomm appears to be the real local
2906 common symbol to create. References to the symbol named in
2907 the first argument are turned into references to the third
2909 if (*input_line_pointer != ',')
2911 as_bad (_("missing real symbol name"));
2912 ignore_rest_of_line ();
2915 ++input_line_pointer;
2917 lcomm_name = input_line_pointer;
2918 lcomm_endc = get_symbol_end ();
2920 lcomm_sym = symbol_find_or_make (lcomm_name);
2922 *input_line_pointer = lcomm_endc;
2926 sym = symbol_find_or_make (name);
2929 if (S_IS_DEFINED (sym)
2930 || S_GET_VALUE (sym) != 0)
2932 as_bad (_("attempt to redefine symbol"));
2933 ignore_rest_of_line ();
2937 record_alignment (bss_section, align);
2940 || ! S_IS_DEFINED (lcomm_sym))
2949 S_SET_EXTERNAL (sym);
2953 symbol_get_tc (lcomm_sym)->output = 1;
2954 def_sym = lcomm_sym;
2958 subseg_set (bss_section, 1);
2959 frag_align (align, 0, 0);
2961 symbol_set_frag (def_sym, frag_now);
2962 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
2963 def_size, (char *) NULL);
2965 S_SET_SEGMENT (def_sym, bss_section);
2966 symbol_get_tc (def_sym)->align = align;
2970 /* Align the size of lcomm_sym. */
2971 symbol_get_frag (lcomm_sym)->fr_offset =
2972 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
2973 &~ ((1 << align) - 1));
2974 if (align > symbol_get_tc (lcomm_sym)->align)
2975 symbol_get_tc (lcomm_sym)->align = align;
2980 /* Make sym an offset from lcomm_sym. */
2981 S_SET_SEGMENT (sym, bss_section);
2982 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
2983 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
2984 symbol_get_frag (lcomm_sym)->fr_offset += size;
2987 subseg_set (current_seg, current_subseg);
2989 demand_empty_rest_of_line ();
2992 /* The .csect pseudo-op. This switches us into a different
2993 subsegment. The first argument is a symbol whose value is the
2994 start of the .csect. In COFF, csect symbols get special aux
2995 entries defined by the x_csect field of union internal_auxent. The
2996 optional second argument is the alignment (the default is 2). */
3000 int ignore ATTRIBUTE_UNUSED;
3006 name = input_line_pointer;
3007 endc = get_symbol_end ();
3009 sym = symbol_find_or_make (name);
3011 *input_line_pointer = endc;
3013 if (S_GET_NAME (sym)[0] == '\0')
3015 /* An unnamed csect is assumed to be [PR]. */
3016 symbol_get_tc (sym)->class = XMC_PR;
3019 ppc_change_csect (sym);
3021 if (*input_line_pointer == ',')
3023 ++input_line_pointer;
3024 symbol_get_tc (sym)->align = get_absolute_expression ();
3027 demand_empty_rest_of_line ();
3030 /* Change to a different csect. */
3033 ppc_change_csect (sym)
3036 if (S_IS_DEFINED (sym))
3037 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3045 /* This is a new csect. We need to look at the symbol class to
3046 figure out whether it should go in the text section or the
3049 switch (symbol_get_tc (sym)->class)
3059 S_SET_SEGMENT (sym, text_section);
3060 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3061 ++ppc_text_subsegment;
3062 list_ptr = &ppc_text_csects;
3071 if (ppc_toc_csect != NULL
3072 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3073 == ppc_data_subsegment))
3075 S_SET_SEGMENT (sym, data_section);
3076 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3077 ++ppc_data_subsegment;
3078 list_ptr = &ppc_data_csects;
3084 /* We set the obstack chunk size to a small value before
3085 changing subsegments, so that we don't use a lot of memory
3086 space for what may be a small section. */
3087 hold_chunksize = chunksize;
3090 subseg_new (segment_name (S_GET_SEGMENT (sym)),
3091 symbol_get_tc (sym)->subseg);
3093 chunksize = hold_chunksize;
3096 ppc_after_toc_frag = frag_now;
3098 symbol_set_frag (sym, frag_now);
3099 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3101 symbol_get_tc (sym)->align = 2;
3102 symbol_get_tc (sym)->output = 1;
3103 symbol_get_tc (sym)->within = sym;
3105 for (list = *list_ptr;
3106 symbol_get_tc (list)->next != (symbolS *) NULL;
3107 list = symbol_get_tc (list)->next)
3109 symbol_get_tc (list)->next = sym;
3111 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3112 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3116 ppc_current_csect = sym;
3119 /* This function handles the .text and .data pseudo-ops. These
3120 pseudo-ops aren't really used by XCOFF; we implement them for the
3121 convenience of people who aren't used to XCOFF. */
3132 else if (type == 'd')
3137 sym = symbol_find_or_make (name);
3139 ppc_change_csect (sym);
3141 demand_empty_rest_of_line ();
3144 /* This function handles the .section pseudo-op. This is mostly to
3145 give an error, since XCOFF only supports .text, .data and .bss, but
3146 we do permit the user to name the text or data section. */
3149 ppc_named_section (ignore)
3150 int ignore ATTRIBUTE_UNUSED;
3153 const char *real_name;
3157 user_name = input_line_pointer;
3158 c = get_symbol_end ();
3160 if (strcmp (user_name, ".text") == 0)
3161 real_name = ".text[PR]";
3162 else if (strcmp (user_name, ".data") == 0)
3163 real_name = ".data[RW]";
3166 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3167 *input_line_pointer = c;
3168 ignore_rest_of_line ();
3172 *input_line_pointer = c;
3174 sym = symbol_find_or_make (real_name);
3176 ppc_change_csect (sym);
3178 demand_empty_rest_of_line ();
3181 /* The .extern pseudo-op. We create an undefined symbol. */
3185 int ignore ATTRIBUTE_UNUSED;
3190 name = input_line_pointer;
3191 endc = get_symbol_end ();
3193 (void) symbol_find_or_make (name);
3195 *input_line_pointer = endc;
3197 demand_empty_rest_of_line ();
3200 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3204 int ignore ATTRIBUTE_UNUSED;
3210 name = input_line_pointer;
3211 endc = get_symbol_end ();
3213 sym = symbol_find_or_make (name);
3215 *input_line_pointer = endc;
3217 symbol_get_tc (sym)->output = 1;
3219 demand_empty_rest_of_line ();
3222 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3223 although I don't know why it bothers. */
3227 int ignore ATTRIBUTE_UNUSED;
3234 name = input_line_pointer;
3235 endc = get_symbol_end ();
3237 sym = symbol_find_or_make (name);
3239 *input_line_pointer = endc;
3241 if (*input_line_pointer != ',')
3243 as_bad (_("missing rename string"));
3244 ignore_rest_of_line ();
3247 ++input_line_pointer;
3249 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
3251 demand_empty_rest_of_line ();
3254 /* The .stabx pseudo-op. This is similar to a normal .stabs
3255 pseudo-op, but slightly different. A sample is
3256 .stabx "main:F-1",.main,142,0
3257 The first argument is the symbol name to create. The second is the
3258 value, and the third is the storage class. The fourth seems to be
3259 always zero, and I am assuming it is the type. */
3263 int ignore ATTRIBUTE_UNUSED;
3270 name = demand_copy_C_string (&len);
3272 if (*input_line_pointer != ',')
3274 as_bad (_("missing value"));
3277 ++input_line_pointer;
3279 ppc_stab_symbol = TRUE;
3280 sym = symbol_make (name);
3281 ppc_stab_symbol = FALSE;
3283 symbol_get_tc (sym)->real_name = name;
3285 (void) expression (&exp);
3292 as_bad (_("illegal .stabx expression; zero assumed"));
3293 exp.X_add_number = 0;
3296 S_SET_VALUE (sym, (valueT) exp.X_add_number);
3297 symbol_set_frag (sym, &zero_address_frag);
3301 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
3302 symbol_set_value_expression (sym, &exp);
3306 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
3307 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
3312 /* The value is some complex expression. This will probably
3313 fail at some later point, but this is probably the right
3314 thing to do here. */
3315 symbol_set_value_expression (sym, &exp);
3319 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3320 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3322 if (*input_line_pointer != ',')
3324 as_bad (_("missing class"));
3327 ++input_line_pointer;
3329 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
3331 if (*input_line_pointer != ',')
3333 as_bad (_("missing type"));
3336 ++input_line_pointer;
3338 S_SET_DATA_TYPE (sym, get_absolute_expression ());
3340 symbol_get_tc (sym)->output = 1;
3342 if (S_GET_STORAGE_CLASS (sym) == C_STSYM) {
3344 symbol_get_tc (sym)->within = ppc_current_block;
3349 .stabx "z",arrays_,133,0
3352 .comm arrays_,13768,3
3354 resolve_symbol_value will copy the exp's "within" into sym's when the
3355 offset is 0. Since this seems to be corner case problem,
3356 only do the correction for storage class C_STSYM. A better solution
3357 would be to have the tc field updated in ppc_symbol_new_hook. */
3359 if (exp.X_op == O_symbol)
3361 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
3365 if (exp.X_op != O_symbol
3366 || ! S_IS_EXTERNAL (exp.X_add_symbol)
3367 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
3368 ppc_frob_label (sym);
3371 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3372 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
3373 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
3374 symbol_get_tc (ppc_current_csect)->within = sym;
3377 demand_empty_rest_of_line ();
3380 /* The .function pseudo-op. This takes several arguments. The first
3381 argument seems to be the external name of the symbol. The second
3382 argment seems to be the label for the start of the function. gcc
3383 uses the same name for both. I have no idea what the third and
3384 fourth arguments are meant to be. The optional fifth argument is
3385 an expression for the size of the function. In COFF this symbol
3386 gets an aux entry like that used for a csect. */
3389 ppc_function (ignore)
3390 int ignore ATTRIBUTE_UNUSED;
3398 name = input_line_pointer;
3399 endc = get_symbol_end ();
3401 /* Ignore any [PR] suffix. */
3402 name = ppc_canonicalize_symbol_name (name);
3403 s = strchr (name, '[');
3404 if (s != (char *) NULL
3405 && strcmp (s + 1, "PR]") == 0)
3408 ext_sym = symbol_find_or_make (name);
3410 *input_line_pointer = endc;
3412 if (*input_line_pointer != ',')
3414 as_bad (_("missing symbol name"));
3415 ignore_rest_of_line ();
3418 ++input_line_pointer;
3420 name = input_line_pointer;
3421 endc = get_symbol_end ();
3423 lab_sym = symbol_find_or_make (name);
3425 *input_line_pointer = endc;
3427 if (ext_sym != lab_sym)
3431 exp.X_op = O_symbol;
3432 exp.X_add_symbol = lab_sym;
3433 exp.X_op_symbol = NULL;
3434 exp.X_add_number = 0;
3436 symbol_set_value_expression (ext_sym, &exp);
3439 if (symbol_get_tc (ext_sym)->class == -1)
3440 symbol_get_tc (ext_sym)->class = XMC_PR;
3441 symbol_get_tc (ext_sym)->output = 1;
3443 if (*input_line_pointer == ',')
3447 /* Ignore the third argument. */
3448 ++input_line_pointer;
3449 expression (&ignore);
3450 if (*input_line_pointer == ',')
3452 /* Ignore the fourth argument. */
3453 ++input_line_pointer;
3454 expression (&ignore);
3455 if (*input_line_pointer == ',')
3457 /* The fifth argument is the function size. */
3458 ++input_line_pointer;
3459 symbol_get_tc (ext_sym)->size = symbol_new ("L0\001",
3462 &zero_address_frag);
3463 pseudo_set (symbol_get_tc (ext_sym)->size);
3468 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
3469 SF_SET_FUNCTION (ext_sym);
3470 SF_SET_PROCESS (ext_sym);
3471 coff_add_linesym (ext_sym);
3473 demand_empty_rest_of_line ();
3476 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3477 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3478 with the correct line number */
3480 static symbolS *saved_bi_sym = 0;
3484 int ignore ATTRIBUTE_UNUSED;
3488 sym = symbol_make (".bf");
3489 S_SET_SEGMENT (sym, text_section);
3490 symbol_set_frag (sym, frag_now);
3491 S_SET_VALUE (sym, frag_now_fix ());
3492 S_SET_STORAGE_CLASS (sym, C_FCN);
3494 coff_line_base = get_absolute_expression ();
3496 S_SET_NUMBER_AUXILIARY (sym, 1);
3497 SA_SET_SYM_LNNO (sym, coff_line_base);
3499 /* Line number for bi. */
3502 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
3507 symbol_get_tc (sym)->output = 1;
3509 ppc_frob_label (sym);
3511 demand_empty_rest_of_line ();
3514 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3515 ".ef", except that the line number is absolute, not relative to the
3516 most recent ".bf" symbol. */
3520 int ignore ATTRIBUTE_UNUSED;
3524 sym = symbol_make (".ef");
3525 S_SET_SEGMENT (sym, text_section);
3526 symbol_set_frag (sym, frag_now);
3527 S_SET_VALUE (sym, frag_now_fix ());
3528 S_SET_STORAGE_CLASS (sym, C_FCN);
3529 S_SET_NUMBER_AUXILIARY (sym, 1);
3530 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3531 symbol_get_tc (sym)->output = 1;
3533 ppc_frob_label (sym);
3535 demand_empty_rest_of_line ();
3538 /* The .bi and .ei pseudo-ops. These take a string argument and
3539 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3540 the symbol list. The value of .bi will be know when the next .bf
3547 static symbolS *last_biei;
3554 name = demand_copy_C_string (&len);
3556 /* The value of these symbols is actually file offset. Here we set
3557 the value to the index into the line number entries. In
3558 ppc_frob_symbols we set the fix_line field, which will cause BFD
3559 to do the right thing. */
3561 sym = symbol_make (name);
3562 /* obj-coff.c currently only handles line numbers correctly in the
3564 S_SET_SEGMENT (sym, text_section);
3565 S_SET_VALUE (sym, coff_n_line_nos);
3566 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3568 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
3569 symbol_get_tc (sym)->output = 1;
3577 for (look = last_biei ? last_biei : symbol_rootP;
3578 (look != (symbolS *) NULL
3579 && (S_GET_STORAGE_CLASS (look) == C_FILE
3580 || S_GET_STORAGE_CLASS (look) == C_BINCL
3581 || S_GET_STORAGE_CLASS (look) == C_EINCL));
3582 look = symbol_next (look))
3584 if (look != (symbolS *) NULL)
3586 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3587 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
3591 demand_empty_rest_of_line ();
3594 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3595 There is one argument, which is a csect symbol. The value of the
3596 .bs symbol is the index of this csect symbol. */
3600 int ignore ATTRIBUTE_UNUSED;
3607 if (ppc_current_block != NULL)
3608 as_bad (_("nested .bs blocks"));
3610 name = input_line_pointer;
3611 endc = get_symbol_end ();
3613 csect = symbol_find_or_make (name);
3615 *input_line_pointer = endc;
3617 sym = symbol_make (".bs");
3618 S_SET_SEGMENT (sym, now_seg);
3619 S_SET_STORAGE_CLASS (sym, C_BSTAT);
3620 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3621 symbol_get_tc (sym)->output = 1;
3623 symbol_get_tc (sym)->within = csect;
3625 ppc_frob_label (sym);
3627 ppc_current_block = sym;
3629 demand_empty_rest_of_line ();
3632 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3636 int ignore ATTRIBUTE_UNUSED;
3640 if (ppc_current_block == NULL)
3641 as_bad (_(".es without preceding .bs"));
3643 sym = symbol_make (".es");
3644 S_SET_SEGMENT (sym, now_seg);
3645 S_SET_STORAGE_CLASS (sym, C_ESTAT);
3646 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3647 symbol_get_tc (sym)->output = 1;
3649 ppc_frob_label (sym);
3651 ppc_current_block = NULL;
3653 demand_empty_rest_of_line ();
3656 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3661 int ignore ATTRIBUTE_UNUSED;
3665 sym = symbol_make (".bb");
3666 S_SET_SEGMENT (sym, text_section);
3667 symbol_set_frag (sym, frag_now);
3668 S_SET_VALUE (sym, frag_now_fix ());
3669 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3671 S_SET_NUMBER_AUXILIARY (sym, 1);
3672 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3674 symbol_get_tc (sym)->output = 1;
3676 SF_SET_PROCESS (sym);
3678 ppc_frob_label (sym);
3680 demand_empty_rest_of_line ();
3683 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3688 int ignore ATTRIBUTE_UNUSED;
3692 sym = symbol_make (".eb");
3693 S_SET_SEGMENT (sym, text_section);
3694 symbol_set_frag (sym, frag_now);
3695 S_SET_VALUE (sym, frag_now_fix ());
3696 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3697 S_SET_NUMBER_AUXILIARY (sym, 1);
3698 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3699 symbol_get_tc (sym)->output = 1;
3701 SF_SET_PROCESS (sym);
3703 ppc_frob_label (sym);
3705 demand_empty_rest_of_line ();
3708 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3713 int ignore ATTRIBUTE_UNUSED;
3719 name = demand_copy_C_string (&len);
3720 sym = symbol_make (name);
3721 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3722 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3723 S_SET_STORAGE_CLASS (sym, C_BCOMM);
3724 S_SET_VALUE (sym, 0);
3725 symbol_get_tc (sym)->output = 1;
3727 ppc_frob_label (sym);
3729 demand_empty_rest_of_line ();
3732 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3736 int ignore ATTRIBUTE_UNUSED;
3740 sym = symbol_make (".ec");
3741 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3742 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3743 S_SET_STORAGE_CLASS (sym, C_ECOMM);
3744 S_SET_VALUE (sym, 0);
3745 symbol_get_tc (sym)->output = 1;
3747 ppc_frob_label (sym);
3749 demand_empty_rest_of_line ();
3752 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3756 int ignore ATTRIBUTE_UNUSED;
3758 if (ppc_toc_csect != (symbolS *) NULL)
3759 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
3766 subseg = ppc_data_subsegment;
3767 ++ppc_data_subsegment;
3769 subseg_new (segment_name (data_section), subseg);
3770 ppc_toc_frag = frag_now;
3772 sym = symbol_find_or_make ("TOC[TC0]");
3773 symbol_set_frag (sym, frag_now);
3774 S_SET_SEGMENT (sym, data_section);
3775 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3776 symbol_get_tc (sym)->subseg = subseg;
3777 symbol_get_tc (sym)->output = 1;
3778 symbol_get_tc (sym)->within = sym;
3780 ppc_toc_csect = sym;
3782 for (list = ppc_data_csects;
3783 symbol_get_tc (list)->next != (symbolS *) NULL;
3784 list = symbol_get_tc (list)->next)
3786 symbol_get_tc (list)->next = sym;
3788 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3789 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3793 ppc_current_csect = ppc_toc_csect;
3795 demand_empty_rest_of_line ();
3798 /* The AIX assembler automatically aligns the operands of a .long or
3799 .short pseudo-op, and we want to be compatible. */
3802 ppc_xcoff_cons (log_size)
3805 frag_align (log_size, 0, 0);
3806 record_alignment (now_seg, log_size);
3807 cons (1 << log_size);
3812 int dummy ATTRIBUTE_UNUSED;
3817 (void) expression (&exp);
3819 if (exp.X_op != O_constant)
3821 as_bad (_("non-constant byte count"));
3825 byte_count = exp.X_add_number;
3827 if (*input_line_pointer != ',')
3829 as_bad (_("missing value"));
3833 ++input_line_pointer;
3837 #endif /* OBJ_XCOFF */
3838 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3840 /* The .tc pseudo-op. This is used when generating either XCOFF or
3841 ELF. This takes two or more arguments.
3843 When generating XCOFF output, the first argument is the name to
3844 give to this location in the toc; this will be a symbol with class
3845 TC. The rest of the arguments are N-byte values to actually put at
3846 this location in the TOC; often there is just one more argument, a
3847 relocateable symbol reference. The size of the value to store
3848 depends on target word size. A 32-bit target uses 4-byte values, a
3849 64-bit target uses 8-byte values.
3851 When not generating XCOFF output, the arguments are the same, but
3852 the first argument is simply ignored. */
3856 int ignore ATTRIBUTE_UNUSED;
3860 /* Define the TOC symbol name. */
3866 if (ppc_toc_csect == (symbolS *) NULL
3867 || ppc_toc_csect != ppc_current_csect)
3869 as_bad (_(".tc not in .toc section"));
3870 ignore_rest_of_line ();
3874 name = input_line_pointer;
3875 endc = get_symbol_end ();
3877 sym = symbol_find_or_make (name);
3879 *input_line_pointer = endc;
3881 if (S_IS_DEFINED (sym))
3885 label = symbol_get_tc (ppc_current_csect)->within;
3886 if (symbol_get_tc (label)->class != XMC_TC0)
3888 as_bad (_(".tc with no label"));
3889 ignore_rest_of_line ();
3893 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
3894 symbol_set_frag (label, symbol_get_frag (sym));
3895 S_SET_VALUE (label, S_GET_VALUE (sym));
3897 while (! is_end_of_line[(unsigned char) *input_line_pointer])
3898 ++input_line_pointer;
3903 S_SET_SEGMENT (sym, now_seg);
3904 symbol_set_frag (sym, frag_now);
3905 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3906 symbol_get_tc (sym)->class = XMC_TC;
3907 symbol_get_tc (sym)->output = 1;
3909 ppc_frob_label (sym);
3912 #endif /* OBJ_XCOFF */
3916 /* Skip the TOC symbol name. */
3917 while (is_part_of_name (*input_line_pointer)
3918 || *input_line_pointer == '['
3919 || *input_line_pointer == ']'
3920 || *input_line_pointer == '{'
3921 || *input_line_pointer == '}')
3922 ++input_line_pointer;
3924 /* Align to a four/eight byte boundary. */
3925 align = ppc_obj64 ? 3 : 2;
3926 frag_align (align, 0, 0);
3927 record_alignment (now_seg, align);
3928 #endif /* OBJ_ELF */
3930 if (*input_line_pointer != ',')
3931 demand_empty_rest_of_line ();
3934 ++input_line_pointer;
3935 cons (ppc_obj64 ? 8 : 4);
3939 /* Pseudo-op .machine. */
3940 /* FIXME: `.machine' is a nop for the moment. It would be nice to
3941 accept this directive on the first line of input and set ppc_obj64
3942 and the target format accordingly. Unfortunately, the target
3943 format is selected in output-file.c:output_file_create before we
3944 even get to md_begin, so it's not possible without changing
3948 ppc_machine (ignore)
3949 int ignore ATTRIBUTE_UNUSED;
3951 discard_rest_of_line ();
3954 /* See whether a symbol is in the TOC section. */
3957 ppc_is_toc_sym (sym)
3961 return symbol_get_tc (sym)->class == XMC_TC;
3964 const char *sname = segment_name (S_GET_SEGMENT (sym));
3966 return strcmp (sname, ".toc") == 0;
3968 return strcmp (sname, ".got") == 0;
3971 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
3975 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
3977 /* Set the current section. */
3979 ppc_set_current_section (new)
3982 ppc_previous_section = ppc_current_section;
3983 ppc_current_section = new;
3986 /* pseudo-op: .previous
3987 behaviour: toggles the current section with the previous section.
3989 warnings: "No previous section" */
3992 ppc_previous (ignore)
3993 int ignore ATTRIBUTE_UNUSED;
3997 if (ppc_previous_section == NULL)
3999 as_warn (_("No previous section to return to. Directive ignored."));
4003 subseg_set (ppc_previous_section, 0);
4005 ppc_set_current_section (ppc_previous_section);
4008 /* pseudo-op: .pdata
4009 behaviour: predefined read only data section
4013 initial: .section .pdata "adr3"
4014 a - don't know -- maybe a misprint
4015 d - initialized data
4017 3 - double word aligned (that would be 4 byte boundary)
4020 Tag index tables (also known as the function table) for exception
4021 handling, debugging, etc. */
4025 int ignore ATTRIBUTE_UNUSED;
4027 if (pdata_section == 0)
4029 pdata_section = subseg_new (".pdata", 0);
4031 bfd_set_section_flags (stdoutput, pdata_section,
4032 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4033 | SEC_READONLY | SEC_DATA ));
4035 bfd_set_section_alignment (stdoutput, pdata_section, 2);
4039 pdata_section = subseg_new (".pdata", 0);
4041 ppc_set_current_section (pdata_section);
4044 /* pseudo-op: .ydata
4045 behaviour: predefined read only data section
4049 initial: .section .ydata "drw3"
4050 a - don't know -- maybe a misprint
4051 d - initialized data
4053 3 - double word aligned (that would be 4 byte boundary)
4055 Tag tables (also known as the scope table) for exception handling,
4060 int ignore ATTRIBUTE_UNUSED;
4062 if (ydata_section == 0)
4064 ydata_section = subseg_new (".ydata", 0);
4065 bfd_set_section_flags (stdoutput, ydata_section,
4066 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4067 | SEC_READONLY | SEC_DATA ));
4069 bfd_set_section_alignment (stdoutput, ydata_section, 3);
4073 ydata_section = subseg_new (".ydata", 0);
4075 ppc_set_current_section (ydata_section);
4078 /* pseudo-op: .reldata
4079 behaviour: predefined read write data section
4080 double word aligned (4-byte)
4081 FIXME: relocation is applied to it
4082 FIXME: what's the difference between this and .data?
4085 initial: .section .reldata "drw3"
4086 d - initialized data
4089 3 - double word aligned (that would be 8 byte boundary)
4092 Like .data, but intended to hold data subject to relocation, such as
4093 function descriptors, etc. */
4096 ppc_reldata (ignore)
4097 int ignore ATTRIBUTE_UNUSED;
4099 if (reldata_section == 0)
4101 reldata_section = subseg_new (".reldata", 0);
4103 bfd_set_section_flags (stdoutput, reldata_section,
4104 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4107 bfd_set_section_alignment (stdoutput, reldata_section, 2);
4111 reldata_section = subseg_new (".reldata", 0);
4113 ppc_set_current_section (reldata_section);
4116 /* pseudo-op: .rdata
4117 behaviour: predefined read only data section
4121 initial: .section .rdata "dr3"
4122 d - initialized data
4124 3 - double word aligned (that would be 4 byte boundary) */
4128 int ignore ATTRIBUTE_UNUSED;
4130 if (rdata_section == 0)
4132 rdata_section = subseg_new (".rdata", 0);
4133 bfd_set_section_flags (stdoutput, rdata_section,
4134 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4135 | SEC_READONLY | SEC_DATA ));
4137 bfd_set_section_alignment (stdoutput, rdata_section, 2);
4141 rdata_section = subseg_new (".rdata", 0);
4143 ppc_set_current_section (rdata_section);
4146 /* pseudo-op: .ualong
4147 behaviour: much like .int, with the exception that no alignment is
4149 FIXME: test the alignment statement
4155 int ignore ATTRIBUTE_UNUSED;
4161 /* pseudo-op: .znop <symbol name>
4162 behaviour: Issue a nop instruction
4163 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4164 the supplied symbol name.
4166 warnings: Missing symbol name */
4170 int ignore ATTRIBUTE_UNUSED;
4173 const struct powerpc_opcode *opcode;
4184 /* Strip out the symbol name. */
4185 symbol_name = input_line_pointer;
4186 c = get_symbol_end ();
4188 name = xmalloc (input_line_pointer - symbol_name + 1);
4189 strcpy (name, symbol_name);
4191 sym = symbol_find_or_make (name);
4193 *input_line_pointer = c;
4197 /* Look up the opcode in the hash table. */
4198 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
4200 /* Stick in the nop. */
4201 insn = opcode->opcode;
4203 /* Write out the instruction. */
4205 md_number_to_chars (f, insn, 4);
4207 f - frag_now->fr_literal,
4212 BFD_RELOC_16_GOT_PCREL);
4225 register char *name;
4229 register symbolS *symbolP;
4232 name = input_line_pointer;
4233 c = get_symbol_end ();
4235 /* just after name is now '\0'. */
4236 p = input_line_pointer;
4239 if (*input_line_pointer != ',')
4241 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4242 ignore_rest_of_line ();
4246 input_line_pointer++; /* skip ',' */
4247 if ((temp = get_absolute_expression ()) < 0)
4249 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
4250 ignore_rest_of_line ();
4256 /* The third argument to .comm is the alignment. */
4257 if (*input_line_pointer != ',')
4261 ++input_line_pointer;
4262 align = get_absolute_expression ();
4265 as_warn (_("ignoring bad alignment"));
4272 symbolP = symbol_find_or_make (name);
4275 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
4277 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4278 S_GET_NAME (symbolP));
4279 ignore_rest_of_line ();
4283 if (S_GET_VALUE (symbolP))
4285 if (S_GET_VALUE (symbolP) != (valueT) temp)
4286 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4287 S_GET_NAME (symbolP),
4288 (long) S_GET_VALUE (symbolP),
4293 S_SET_VALUE (symbolP, (valueT) temp);
4294 S_SET_EXTERNAL (symbolP);
4297 demand_empty_rest_of_line ();
4301 * implement the .section pseudo op:
4302 * .section name {, "flags"}
4304 * | +--- optional flags: 'b' for bss
4306 * +-- section name 'l' for lib
4310 * 'd' (apparently m88k for data)
4312 * But if the argument is not a quoted string, treat it as a
4313 * subsegment number.
4315 * FIXME: this is a copy of the section processing from obj-coff.c, with
4316 * additions/changes for the moto-pas assembler support. There are three
4319 * FIXME: I just noticed this. This doesn't work at all really. It it
4320 * setting bits that bfd probably neither understands or uses. The
4321 * correct approach (?) will have to incorporate extra fields attached
4322 * to the section to hold the system specific stuff. (krk)
4325 * 'a' - unknown - referred to in documentation, but no definition supplied
4326 * 'c' - section has code
4327 * 'd' - section has initialized data
4328 * 'u' - section has uninitialized data
4329 * 'i' - section contains directives (info)
4330 * 'n' - section can be discarded
4331 * 'R' - remove section at link time
4333 * Section Protection:
4334 * 'r' - section is readable
4335 * 'w' - section is writeable
4336 * 'x' - section is executable
4337 * 's' - section is sharable
4339 * Section Alignment:
4340 * '0' - align to byte boundary
4341 * '1' - align to halfword undary
4342 * '2' - align to word boundary
4343 * '3' - align to doubleword boundary
4344 * '4' - align to quadword boundary
4345 * '5' - align to 32 byte boundary
4346 * '6' - align to 64 byte boundary
4351 ppc_pe_section (ignore)
4352 int ignore ATTRIBUTE_UNUSED;
4354 /* Strip out the section name. */
4363 section_name = input_line_pointer;
4364 c = get_symbol_end ();
4366 name = xmalloc (input_line_pointer - section_name + 1);
4367 strcpy (name, section_name);
4369 *input_line_pointer = c;
4374 flags = SEC_NO_FLAGS;
4376 if (strcmp (name, ".idata$2") == 0)
4380 else if (strcmp (name, ".idata$3") == 0)
4384 else if (strcmp (name, ".idata$4") == 0)
4388 else if (strcmp (name, ".idata$5") == 0)
4392 else if (strcmp (name, ".idata$6") == 0)
4397 /* Default alignment to 16 byte boundary. */
4400 if (*input_line_pointer == ',')
4402 ++input_line_pointer;
4404 if (*input_line_pointer != '"')
4405 exp = get_absolute_expression ();
4408 ++input_line_pointer;
4409 while (*input_line_pointer != '"'
4410 && ! is_end_of_line[(unsigned char) *input_line_pointer])
4412 switch (*input_line_pointer)
4414 /* Section Contents */
4415 case 'a': /* unknown */
4416 as_bad (_("Unsupported section attribute -- 'a'"));
4418 case 'c': /* code section */
4421 case 'd': /* section has initialized data */
4424 case 'u': /* section has uninitialized data */
4425 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4429 case 'i': /* section contains directives (info) */
4430 /* FIXME: This is IMAGE_SCN_LNK_INFO
4432 flags |= SEC_HAS_CONTENTS;
4434 case 'n': /* section can be discarded */
4437 case 'R': /* Remove section at link time */
4438 flags |= SEC_NEVER_LOAD;
4441 /* Section Protection */
4442 case 'r': /* section is readable */
4443 flags |= IMAGE_SCN_MEM_READ;
4445 case 'w': /* section is writeable */
4446 flags |= IMAGE_SCN_MEM_WRITE;
4448 case 'x': /* section is executable */
4449 flags |= IMAGE_SCN_MEM_EXECUTE;
4451 case 's': /* section is sharable */
4452 flags |= IMAGE_SCN_MEM_SHARED;
4455 /* Section Alignment */
4456 case '0': /* align to byte boundary */
4457 flags |= IMAGE_SCN_ALIGN_1BYTES;
4460 case '1': /* align to halfword boundary */
4461 flags |= IMAGE_SCN_ALIGN_2BYTES;
4464 case '2': /* align to word boundary */
4465 flags |= IMAGE_SCN_ALIGN_4BYTES;
4468 case '3': /* align to doubleword boundary */
4469 flags |= IMAGE_SCN_ALIGN_8BYTES;
4472 case '4': /* align to quadword boundary */
4473 flags |= IMAGE_SCN_ALIGN_16BYTES;
4476 case '5': /* align to 32 byte boundary */
4477 flags |= IMAGE_SCN_ALIGN_32BYTES;
4480 case '6': /* align to 64 byte boundary */
4481 flags |= IMAGE_SCN_ALIGN_64BYTES;
4486 as_bad (_("unknown section attribute '%c'"),
4487 *input_line_pointer);
4490 ++input_line_pointer;
4492 if (*input_line_pointer == '"')
4493 ++input_line_pointer;
4497 sec = subseg_new (name, (subsegT) exp);
4499 ppc_set_current_section (sec);
4501 if (flags != SEC_NO_FLAGS)
4503 if (! bfd_set_section_flags (stdoutput, sec, flags))
4504 as_bad (_("error setting flags for \"%s\": %s"),
4505 bfd_section_name (stdoutput, sec),
4506 bfd_errmsg (bfd_get_error ()));
4509 bfd_set_section_alignment (stdoutput, sec, align);
4514 ppc_pe_function (ignore)
4515 int ignore ATTRIBUTE_UNUSED;
4521 name = input_line_pointer;
4522 endc = get_symbol_end ();
4524 ext_sym = symbol_find_or_make (name);
4526 *input_line_pointer = endc;
4528 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4529 SF_SET_FUNCTION (ext_sym);
4530 SF_SET_PROCESS (ext_sym);
4531 coff_add_linesym (ext_sym);
4533 demand_empty_rest_of_line ();
4537 ppc_pe_tocd (ignore)
4538 int ignore ATTRIBUTE_UNUSED;
4540 if (tocdata_section == 0)
4542 tocdata_section = subseg_new (".tocd", 0);
4543 /* FIXME: section flags won't work. */
4544 bfd_set_section_flags (stdoutput, tocdata_section,
4545 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4546 | SEC_READONLY | SEC_DATA));
4548 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
4552 rdata_section = subseg_new (".tocd", 0);
4555 ppc_set_current_section (tocdata_section);
4557 demand_empty_rest_of_line ();
4560 /* Don't adjust TOC relocs to use the section symbol. */
4563 ppc_pe_fix_adjustable (fix)
4566 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
4573 /* XCOFF specific symbol and file handling. */
4575 /* Canonicalize the symbol name. We use the to force the suffix, if
4576 any, to use square brackets, and to be in upper case. */
4579 ppc_canonicalize_symbol_name (name)
4584 if (ppc_stab_symbol)
4587 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
4601 for (s++; *s != '\0' && *s != brac; s++)
4604 if (*s == '\0' || s[1] != '\0')
4605 as_bad (_("bad symbol suffix"));
4613 /* Set the class of a symbol based on the suffix, if any. This is
4614 called whenever a new symbol is created. */
4617 ppc_symbol_new_hook (sym)
4620 struct ppc_tc_sy *tc;
4623 tc = symbol_get_tc (sym);
4627 tc->real_name = NULL;
4633 if (ppc_stab_symbol)
4636 s = strchr (S_GET_NAME (sym), '[');
4637 if (s == (const char *) NULL)
4639 /* There is no suffix. */
4648 if (strcmp (s, "BS]") == 0)
4652 if (strcmp (s, "DB]") == 0)
4654 else if (strcmp (s, "DS]") == 0)
4658 if (strcmp (s, "GL]") == 0)
4662 if (strcmp (s, "PR]") == 0)
4666 if (strcmp (s, "RO]") == 0)
4668 else if (strcmp (s, "RW]") == 0)
4672 if (strcmp (s, "SV]") == 0)
4676 if (strcmp (s, "TC]") == 0)
4678 else if (strcmp (s, "TI]") == 0)
4680 else if (strcmp (s, "TB]") == 0)
4682 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
4683 tc->class = XMC_TC0;
4686 if (strcmp (s, "UA]") == 0)
4688 else if (strcmp (s, "UC]") == 0)
4692 if (strcmp (s, "XO]") == 0)
4697 if (tc->class == -1)
4698 as_bad (_("Unrecognized symbol suffix"));
4701 /* Set the class of a label based on where it is defined. This
4702 handles symbols without suffixes. Also, move the symbol so that it
4703 follows the csect symbol. */
4706 ppc_frob_label (sym)
4709 if (ppc_current_csect != (symbolS *) NULL)
4711 if (symbol_get_tc (sym)->class == -1)
4712 symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class;
4714 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4715 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
4716 &symbol_rootP, &symbol_lastP);
4717 symbol_get_tc (ppc_current_csect)->within = sym;
4721 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4722 seen. It tells ppc_adjust_symtab whether it needs to look through
4725 static bfd_boolean ppc_saw_abs;
4727 /* Change the name of a symbol just before writing it out. Set the
4728 real name if the .rename pseudo-op was used. Otherwise, remove any
4729 class suffix. Return 1 if the symbol should not be included in the
4733 ppc_frob_symbol (sym)
4736 static symbolS *ppc_last_function;
4737 static symbolS *set_end;
4739 /* Discard symbols that should not be included in the output symbol
4741 if (! symbol_used_in_reloc_p (sym)
4742 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
4743 || (! S_IS_EXTERNAL (sym)
4744 && ! symbol_get_tc (sym)->output
4745 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
4748 /* This one will disappear anyway. Don't make a csect sym for it. */
4749 if (sym == abs_section_sym)
4752 if (symbol_get_tc (sym)->real_name != (char *) NULL)
4753 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
4759 name = S_GET_NAME (sym);
4760 s = strchr (name, '[');
4761 if (s != (char *) NULL)
4767 snew = xmalloc (len + 1);
4768 memcpy (snew, name, len);
4771 S_SET_NAME (sym, snew);
4775 if (set_end != (symbolS *) NULL)
4777 SA_SET_SYM_ENDNDX (set_end, sym);
4781 if (SF_GET_FUNCTION (sym))
4783 if (ppc_last_function != (symbolS *) NULL)
4784 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4785 ppc_last_function = sym;
4786 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
4788 resolve_symbol_value (symbol_get_tc (sym)->size);
4789 SA_SET_SYM_FSIZE (sym,
4790 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
4793 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
4794 && strcmp (S_GET_NAME (sym), ".ef") == 0)
4796 if (ppc_last_function == (symbolS *) NULL)
4797 as_bad (_(".ef with no preceding .function"));
4800 set_end = ppc_last_function;
4801 ppc_last_function = NULL;
4803 /* We don't have a C_EFCN symbol, but we need to force the
4804 COFF backend to believe that it has seen one. */
4805 coff_last_function = NULL;
4809 if (! S_IS_EXTERNAL (sym)
4810 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
4811 && S_GET_STORAGE_CLASS (sym) != C_FILE
4812 && S_GET_STORAGE_CLASS (sym) != C_FCN
4813 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
4814 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
4815 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
4816 && S_GET_STORAGE_CLASS (sym) != C_BINCL
4817 && S_GET_STORAGE_CLASS (sym) != C_EINCL
4818 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
4819 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
4821 if (S_GET_STORAGE_CLASS (sym) == C_EXT
4822 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
4825 union internal_auxent *a;
4827 /* Create a csect aux. */
4828 i = S_GET_NUMBER_AUXILIARY (sym);
4829 S_SET_NUMBER_AUXILIARY (sym, i + 1);
4830 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
4831 if (symbol_get_tc (sym)->class == XMC_TC0)
4833 /* This is the TOC table. */
4834 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
4835 a->x_csect.x_scnlen.l = 0;
4836 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
4838 else if (symbol_get_tc (sym)->subseg != 0)
4840 /* This is a csect symbol. x_scnlen is the size of the
4842 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
4843 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
4844 S_GET_SEGMENT (sym))
4845 - S_GET_VALUE (sym));
4848 resolve_symbol_value (symbol_get_tc (sym)->next);
4849 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
4850 - S_GET_VALUE (sym));
4852 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
4854 else if (S_GET_SEGMENT (sym) == bss_section)
4856 /* This is a common symbol. */
4857 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
4858 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
4859 if (S_IS_EXTERNAL (sym))
4860 symbol_get_tc (sym)->class = XMC_RW;
4862 symbol_get_tc (sym)->class = XMC_BS;
4864 else if (S_GET_SEGMENT (sym) == absolute_section)
4866 /* This is an absolute symbol. The csect will be created by
4867 ppc_adjust_symtab. */
4869 a->x_csect.x_smtyp = XTY_LD;
4870 if (symbol_get_tc (sym)->class == -1)
4871 symbol_get_tc (sym)->class = XMC_XO;
4873 else if (! S_IS_DEFINED (sym))
4875 /* This is an external symbol. */
4876 a->x_csect.x_scnlen.l = 0;
4877 a->x_csect.x_smtyp = XTY_ER;
4879 else if (symbol_get_tc (sym)->class == XMC_TC)
4883 /* This is a TOC definition. x_scnlen is the size of the
4885 next = symbol_next (sym);
4886 while (symbol_get_tc (next)->class == XMC_TC0)
4887 next = symbol_next (next);
4888 if (next == (symbolS *) NULL
4889 || symbol_get_tc (next)->class != XMC_TC)
4891 if (ppc_after_toc_frag == (fragS *) NULL)
4892 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
4894 - S_GET_VALUE (sym));
4896 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
4897 - S_GET_VALUE (sym));
4901 resolve_symbol_value (next);
4902 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
4903 - S_GET_VALUE (sym));
4905 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
4911 /* This is a normal symbol definition. x_scnlen is the
4912 symbol index of the containing csect. */
4913 if (S_GET_SEGMENT (sym) == text_section)
4914 csect = ppc_text_csects;
4915 else if (S_GET_SEGMENT (sym) == data_section)
4916 csect = ppc_data_csects;
4920 /* Skip the initial dummy symbol. */
4921 csect = symbol_get_tc (csect)->next;
4923 if (csect == (symbolS *) NULL)
4925 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
4926 a->x_csect.x_scnlen.l = 0;
4930 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
4932 resolve_symbol_value (symbol_get_tc (csect)->next);
4933 if (S_GET_VALUE (symbol_get_tc (csect)->next)
4934 > S_GET_VALUE (sym))
4936 csect = symbol_get_tc (csect)->next;
4939 a->x_csect.x_scnlen.p =
4940 coffsymbol (symbol_get_bfdsym (csect))->native;
4941 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
4944 a->x_csect.x_smtyp = XTY_LD;
4947 a->x_csect.x_parmhash = 0;
4948 a->x_csect.x_snhash = 0;
4949 if (symbol_get_tc (sym)->class == -1)
4950 a->x_csect.x_smclas = XMC_PR;
4952 a->x_csect.x_smclas = symbol_get_tc (sym)->class;
4953 a->x_csect.x_stab = 0;
4954 a->x_csect.x_snstab = 0;
4956 /* Don't let the COFF backend resort these symbols. */
4957 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
4959 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
4961 /* We want the value to be the symbol index of the referenced
4962 csect symbol. BFD will do that for us if we set the right
4964 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
4965 combined_entry_type *c = coffsymbol (bsym)->native;
4967 S_SET_VALUE (sym, (valueT) (size_t) c);
4968 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
4970 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
4975 /* The value is the offset from the enclosing csect. */
4976 block = symbol_get_tc (sym)->within;
4977 csect = symbol_get_tc (block)->within;
4978 resolve_symbol_value (csect);
4979 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
4981 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
4982 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
4984 /* We want the value to be a file offset into the line numbers.
4985 BFD will do that for us if we set the right flags. We have
4986 already set the value correctly. */
4987 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
4993 /* Adjust the symbol table. This creates csect symbols for all
4994 absolute symbols. */
4997 ppc_adjust_symtab ()
5004 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
5008 union internal_auxent *a;
5010 if (S_GET_SEGMENT (sym) != absolute_section)
5013 csect = symbol_create (".abs[XO]", absolute_section,
5014 S_GET_VALUE (sym), &zero_address_frag);
5015 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
5016 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
5017 i = S_GET_NUMBER_AUXILIARY (csect);
5018 S_SET_NUMBER_AUXILIARY (csect, i + 1);
5019 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
5020 a->x_csect.x_scnlen.l = 0;
5021 a->x_csect.x_smtyp = XTY_SD;
5022 a->x_csect.x_parmhash = 0;
5023 a->x_csect.x_snhash = 0;
5024 a->x_csect.x_smclas = XMC_XO;
5025 a->x_csect.x_stab = 0;
5026 a->x_csect.x_snstab = 0;
5028 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
5030 i = S_GET_NUMBER_AUXILIARY (sym);
5031 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
5032 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
5033 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
5036 ppc_saw_abs = FALSE;
5039 /* Set the VMA for a section. This is called on all the sections in
5043 ppc_frob_section (sec)
5046 static bfd_size_type vma = 0;
5048 bfd_set_section_vma (stdoutput, sec, vma);
5049 vma += bfd_section_size (stdoutput, sec);
5052 #endif /* OBJ_XCOFF */
5054 /* Turn a string in input_line_pointer into a floating point constant
5055 of type TYPE, and store the appropriate bytes in *LITP. The number
5056 of LITTLENUMS emitted is stored in *SIZEP. An error message is
5057 returned, or NULL on OK. */
5060 md_atof (type, litp, sizep)
5066 LITTLENUM_TYPE words[4];
5082 return _("bad call to md_atof");
5085 t = atof_ieee (input_line_pointer, type, words);
5087 input_line_pointer = t;
5091 if (target_big_endian)
5093 for (i = 0; i < prec; i++)
5095 md_number_to_chars (litp, (valueT) words[i], 2);
5101 for (i = prec - 1; i >= 0; i--)
5103 md_number_to_chars (litp, (valueT) words[i], 2);
5111 /* Write a value out to the object file, using the appropriate
5115 md_number_to_chars (buf, val, n)
5120 if (target_big_endian)
5121 number_to_chars_bigendian (buf, val, n);
5123 number_to_chars_littleendian (buf, val, n);
5126 /* Align a section (I don't know why this is machine dependent). */
5129 md_section_align (seg, addr)
5133 int align = bfd_get_section_alignment (stdoutput, seg);
5135 return ((addr + (1 << align) - 1) & (-1 << align));
5138 /* We don't have any form of relaxing. */
5141 md_estimate_size_before_relax (fragp, seg)
5142 fragS *fragp ATTRIBUTE_UNUSED;
5143 asection *seg ATTRIBUTE_UNUSED;
5149 /* Convert a machine dependent frag. We never generate these. */
5152 md_convert_frag (abfd, sec, fragp)
5153 bfd *abfd ATTRIBUTE_UNUSED;
5154 asection *sec ATTRIBUTE_UNUSED;
5155 fragS *fragp ATTRIBUTE_UNUSED;
5160 /* We have no need to default values of symbols. */
5163 md_undefined_symbol (name)
5164 char *name ATTRIBUTE_UNUSED;
5169 /* Functions concerning relocs. */
5171 /* The location from which a PC relative jump should be calculated,
5172 given a PC relative reloc. */
5175 md_pcrel_from_section (fixp, sec)
5177 segT sec ATTRIBUTE_UNUSED;
5179 return fixp->fx_frag->fr_address + fixp->fx_where;
5184 /* This is called to see whether a fixup should be adjusted to use a
5185 section symbol. We take the opportunity to change a fixup against
5186 a symbol in the TOC subsegment into a reloc against the
5187 corresponding .tc symbol. */
5190 ppc_fix_adjustable (fix)
5193 valueT val = resolve_symbol_value (fix->fx_addsy);
5194 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
5195 TC_SYMFIELD_TYPE *tc;
5197 if (symseg == absolute_section)
5200 if (ppc_toc_csect != (symbolS *) NULL
5201 && fix->fx_addsy != ppc_toc_csect
5202 && symseg == data_section
5203 && val >= ppc_toc_frag->fr_address
5204 && (ppc_after_toc_frag == (fragS *) NULL
5205 || val < ppc_after_toc_frag->fr_address))
5209 for (sy = symbol_next (ppc_toc_csect);
5210 sy != (symbolS *) NULL;
5211 sy = symbol_next (sy))
5213 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
5215 if (sy_tc->class == XMC_TC0)
5217 if (sy_tc->class != XMC_TC)
5219 if (val == resolve_symbol_value (sy))
5222 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
5227 as_bad_where (fix->fx_file, fix->fx_line,
5228 _("symbol in .toc does not match any .tc"));
5231 /* Possibly adjust the reloc to be against the csect. */
5232 tc = symbol_get_tc (fix->fx_addsy);
5234 && tc->class != XMC_TC0
5235 && tc->class != XMC_TC
5236 && symseg != bss_section
5237 /* Don't adjust if this is a reloc in the toc section. */
5238 && (symseg != data_section
5239 || ppc_toc_csect == NULL
5240 || val < ppc_toc_frag->fr_address
5241 || (ppc_after_toc_frag != NULL
5242 && val >= ppc_after_toc_frag->fr_address)))
5245 symbolS *next_csect;
5247 if (symseg == text_section)
5248 csect = ppc_text_csects;
5249 else if (symseg == data_section)
5250 csect = ppc_data_csects;
5254 /* Skip the initial dummy symbol. */
5255 csect = symbol_get_tc (csect)->next;
5257 if (csect != (symbolS *) NULL)
5259 while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL
5260 && (symbol_get_frag (next_csect)->fr_address <= val))
5262 /* If the csect address equals the symbol value, then we
5263 have to look through the full symbol table to see
5264 whether this is the csect we want. Note that we will
5265 only get here if the csect has zero length. */
5266 if (symbol_get_frag (csect)->fr_address == val
5267 && S_GET_VALUE (csect) == val)
5271 for (scan = symbol_next (csect);
5273 scan = symbol_next (scan))
5275 if (symbol_get_tc (scan)->subseg != 0)
5277 if (scan == fix->fx_addsy)
5281 /* If we found the symbol before the next csect
5282 symbol, then this is the csect we want. */
5283 if (scan == fix->fx_addsy)
5290 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
5291 fix->fx_addsy = csect;
5296 /* Adjust a reloc against a .lcomm symbol to be against the base
5298 if (symseg == bss_section
5299 && ! S_IS_EXTERNAL (fix->fx_addsy))
5301 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
5303 fix->fx_offset += val - resolve_symbol_value (sy);
5310 /* A reloc from one csect to another must be kept. The assembler
5311 will, of course, keep relocs between sections, and it will keep
5312 absolute relocs, but we need to force it to keep PC relative relocs
5313 between two csects in the same section. */
5316 ppc_force_relocation (fix)
5319 /* At this point fix->fx_addsy should already have been converted to
5320 a csect symbol. If the csect does not include the fragment, then
5321 we need to force the relocation. */
5323 && fix->fx_addsy != NULL
5324 && symbol_get_tc (fix->fx_addsy)->subseg != 0
5325 && ((symbol_get_frag (fix->fx_addsy)->fr_address
5326 > fix->fx_frag->fr_address)
5327 || (symbol_get_tc (fix->fx_addsy)->next != NULL
5328 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
5329 <= fix->fx_frag->fr_address))))
5332 return generic_force_reloc (fix);
5335 #endif /* OBJ_XCOFF */
5338 /* If this function returns non-zero, it guarantees that a relocation
5339 will be emitted for a fixup. */
5342 ppc_force_relocation (fix)
5345 /* Branch prediction relocations must force a relocation, as must
5346 the vtable description relocs. */
5347 switch (fix->fx_r_type)
5349 case BFD_RELOC_PPC_B16_BRTAKEN:
5350 case BFD_RELOC_PPC_B16_BRNTAKEN:
5351 case BFD_RELOC_PPC_BA16_BRTAKEN:
5352 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5353 case BFD_RELOC_PPC64_TOC:
5359 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
5360 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
5363 return generic_force_reloc (fix);
5367 ppc_fix_adjustable (fix)
5370 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
5371 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
5372 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
5373 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
5374 && fix->fx_r_type != BFD_RELOC_GPREL16
5375 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
5376 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
5377 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
5378 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
5380 || (fix->fx_subsy != NULL
5381 && (S_GET_SEGMENT (fix->fx_subsy)
5382 == S_GET_SEGMENT (fix->fx_addsy)))
5383 || S_IS_LOCAL (fix->fx_addsy)));
5387 /* Apply a fixup to the object code. This is called for all the
5388 fixups we generated by the call to fix_new_exp, above. In the call
5389 above we used a reloc code which was the largest legal reloc code
5390 plus the operand index. Here we undo that to recover the operand
5391 index. At this point all symbol values should be fully resolved,
5392 and we attempt to completely resolve the reloc. If we can not do
5393 that, we determine the correct reloc code and put it back in the
5397 md_apply_fix3 (fixP, valP, seg)
5400 segT seg ATTRIBUTE_UNUSED;
5402 valueT value = * valP;
5405 if (fixP->fx_addsy != NULL)
5407 /* Hack around bfd_install_relocation brain damage. */
5409 value += fixP->fx_frag->fr_address + fixP->fx_where;
5414 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5415 the symbol values. Since we are using BFD_ASSEMBLER, if we are
5416 doing this relocation the code in write.c is going to call
5417 bfd_install_relocation, which is also going to use the symbol
5418 value. That means that if the reloc is fully resolved we want to
5419 use *valP since bfd_install_relocation is not being used.
5420 However, if the reloc is not fully resolved we do not want to use
5421 *valP, and must use fx_offset instead. However, if the reloc
5422 is PC relative, we do want to use *valP since it includes the
5423 result of md_pcrel_from. This is confusing. */
5424 if (fixP->fx_addsy == (symbolS *) NULL)
5427 else if (fixP->fx_pcrel)
5431 value = fixP->fx_offset;
5434 if (fixP->fx_subsy != (symbolS *) NULL)
5436 /* We can't actually support subtracting a symbol. */
5437 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
5440 if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
5443 const struct powerpc_operand *operand;
5447 opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
5449 operand = &powerpc_operands[opindex];
5452 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5453 does not generate a reloc. It uses the offset of `sym' within its
5454 csect. Other usages, such as `.long sym', generate relocs. This
5455 is the documented behaviour of non-TOC symbols. */
5456 if ((operand->flags & PPC_OPERAND_PARENS) != 0
5457 && operand->bits == 16
5458 && operand->shift == 0
5459 && (operand->insert == NULL || ppc_obj64)
5460 && fixP->fx_addsy != NULL
5461 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
5462 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC
5463 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC0
5464 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
5466 value = fixP->fx_offset;
5471 /* Fetch the instruction, insert the fully resolved operand
5472 value, and stuff the instruction back again. */
5473 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5474 if (target_big_endian)
5475 insn = bfd_getb32 ((unsigned char *) where);
5477 insn = bfd_getl32 ((unsigned char *) where);
5478 insn = ppc_insert_operand (insn, operand, (offsetT) value,
5479 fixP->fx_file, fixP->fx_line);
5480 if (target_big_endian)
5481 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5483 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5486 /* Nothing else to do here. */
5489 assert (fixP->fx_addsy != NULL);
5491 /* Determine a BFD reloc value based on the operand information.
5492 We are only prepared to turn a few of the operands into
5494 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5495 && operand->bits == 26
5496 && operand->shift == 0)
5497 fixP->fx_r_type = BFD_RELOC_PPC_B26;
5498 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5499 && operand->bits == 16
5500 && operand->shift == 0)
5502 fixP->fx_r_type = BFD_RELOC_PPC_B16;
5505 if (target_big_endian)
5506 fixP->fx_where += 2;
5509 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5510 && operand->bits == 26
5511 && operand->shift == 0)
5512 fixP->fx_r_type = BFD_RELOC_PPC_BA26;
5513 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5514 && operand->bits == 16
5515 && operand->shift == 0)
5517 fixP->fx_r_type = BFD_RELOC_PPC_BA16;
5520 if (target_big_endian)
5521 fixP->fx_where += 2;
5524 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5525 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
5526 && operand->bits == 16
5527 && operand->shift == 0
5528 && ppc_is_toc_sym (fixP->fx_addsy))
5530 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
5533 && (operand->flags & PPC_OPERAND_DS) != 0)
5534 fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
5537 if (target_big_endian)
5538 fixP->fx_where += 2;
5540 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5546 /* Use expr_symbol_where to see if this is an expression
5548 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
5549 as_bad_where (fixP->fx_file, fixP->fx_line,
5550 _("unresolved expression that must be resolved"));
5552 as_bad_where (fixP->fx_file, fixP->fx_line,
5553 _("unsupported relocation against %s"),
5554 S_GET_NAME (fixP->fx_addsy));
5562 ppc_elf_validate_fix (fixP, seg);
5564 switch (fixP->fx_r_type)
5566 case BFD_RELOC_CTOR:
5573 fixP->fx_r_type = BFD_RELOC_32_PCREL;
5577 case BFD_RELOC_32_PCREL:
5578 case BFD_RELOC_PPC_EMB_NADDR32:
5579 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5586 fixP->fx_r_type = BFD_RELOC_64_PCREL;
5589 case BFD_RELOC_64_PCREL:
5590 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5594 case BFD_RELOC_LO16:
5596 case BFD_RELOC_GPREL16:
5597 case BFD_RELOC_16_GOT_PCREL:
5598 case BFD_RELOC_16_GOTOFF:
5599 case BFD_RELOC_LO16_GOTOFF:
5600 case BFD_RELOC_HI16_GOTOFF:
5601 case BFD_RELOC_HI16_S_GOTOFF:
5602 case BFD_RELOC_16_BASEREL:
5603 case BFD_RELOC_LO16_BASEREL:
5604 case BFD_RELOC_HI16_BASEREL:
5605 case BFD_RELOC_HI16_S_BASEREL:
5606 case BFD_RELOC_PPC_EMB_NADDR16:
5607 case BFD_RELOC_PPC_EMB_NADDR16_LO:
5608 case BFD_RELOC_PPC_EMB_NADDR16_HI:
5609 case BFD_RELOC_PPC_EMB_NADDR16_HA:
5610 case BFD_RELOC_PPC_EMB_SDAI16:
5611 case BFD_RELOC_PPC_EMB_SDA2REL:
5612 case BFD_RELOC_PPC_EMB_SDA2I16:
5613 case BFD_RELOC_PPC_EMB_RELSEC16:
5614 case BFD_RELOC_PPC_EMB_RELST_LO:
5615 case BFD_RELOC_PPC_EMB_RELST_HI:
5616 case BFD_RELOC_PPC_EMB_RELST_HA:
5617 case BFD_RELOC_PPC_EMB_RELSDA:
5618 case BFD_RELOC_PPC_TOC16:
5620 case BFD_RELOC_PPC64_TOC16_LO:
5621 case BFD_RELOC_PPC64_TOC16_HI:
5622 case BFD_RELOC_PPC64_TOC16_HA:
5626 if (fixP->fx_addsy != NULL)
5627 as_bad_where (fixP->fx_file, fixP->fx_line,
5628 _("cannot emit PC relative %s relocation against %s"),
5629 bfd_get_reloc_code_name (fixP->fx_r_type),
5630 S_GET_NAME (fixP->fx_addsy));
5632 as_bad_where (fixP->fx_file, fixP->fx_line,
5633 _("cannot emit PC relative %s relocation"),
5634 bfd_get_reloc_code_name (fixP->fx_r_type));
5637 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5641 /* This case happens when you write, for example,
5643 where L1 and L2 are defined later. */
5644 case BFD_RELOC_HI16:
5647 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5651 case BFD_RELOC_HI16_S:
5654 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5659 case BFD_RELOC_PPC64_HIGHER:
5662 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5663 PPC_HIGHER (value), 2);
5666 case BFD_RELOC_PPC64_HIGHER_S:
5669 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5670 PPC_HIGHERA (value), 2);
5673 case BFD_RELOC_PPC64_HIGHEST:
5676 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5677 PPC_HIGHEST (value), 2);
5680 case BFD_RELOC_PPC64_HIGHEST_S:
5683 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5684 PPC_HIGHESTA (value), 2);
5687 case BFD_RELOC_PPC64_ADDR16_DS:
5688 case BFD_RELOC_PPC64_ADDR16_LO_DS:
5689 case BFD_RELOC_PPC64_GOT16_DS:
5690 case BFD_RELOC_PPC64_GOT16_LO_DS:
5691 case BFD_RELOC_PPC64_PLT16_LO_DS:
5692 case BFD_RELOC_PPC64_SECTOFF_DS:
5693 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
5694 case BFD_RELOC_PPC64_TOC16_DS:
5695 case BFD_RELOC_PPC64_TOC16_LO_DS:
5696 case BFD_RELOC_PPC64_PLTGOT16_DS:
5697 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
5701 unsigned char *where = fixP->fx_frag->fr_literal + fixP->fx_where;
5704 if (target_big_endian)
5705 val = bfd_getb16 (where);
5707 val = bfd_getl16 (where);
5708 val |= (value & 0xfffc);
5709 if (target_big_endian)
5710 bfd_putb16 ((bfd_vma) val, where);
5712 bfd_putl16 ((bfd_vma) val, where);
5716 case BFD_RELOC_PPC_TLS:
5717 case BFD_RELOC_PPC_DTPMOD:
5718 case BFD_RELOC_PPC_TPREL16:
5719 case BFD_RELOC_PPC_TPREL16_LO:
5720 case BFD_RELOC_PPC_TPREL16_HI:
5721 case BFD_RELOC_PPC_TPREL16_HA:
5722 case BFD_RELOC_PPC_TPREL:
5723 case BFD_RELOC_PPC_DTPREL16:
5724 case BFD_RELOC_PPC_DTPREL16_LO:
5725 case BFD_RELOC_PPC_DTPREL16_HI:
5726 case BFD_RELOC_PPC_DTPREL16_HA:
5727 case BFD_RELOC_PPC_DTPREL:
5728 case BFD_RELOC_PPC_GOT_TLSGD16:
5729 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
5730 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
5731 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
5732 case BFD_RELOC_PPC_GOT_TLSLD16:
5733 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
5734 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
5735 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
5736 case BFD_RELOC_PPC_GOT_TPREL16:
5737 case BFD_RELOC_PPC_GOT_TPREL16_LO:
5738 case BFD_RELOC_PPC_GOT_TPREL16_HI:
5739 case BFD_RELOC_PPC_GOT_TPREL16_HA:
5740 case BFD_RELOC_PPC_GOT_DTPREL16:
5741 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
5742 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
5743 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
5744 case BFD_RELOC_PPC64_TPREL16_DS:
5745 case BFD_RELOC_PPC64_TPREL16_LO_DS:
5746 case BFD_RELOC_PPC64_TPREL16_HIGHER:
5747 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
5748 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
5749 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
5750 case BFD_RELOC_PPC64_DTPREL16_DS:
5751 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
5752 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
5753 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
5754 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
5755 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
5758 /* Because SDA21 modifies the register field, the size is set to 4
5759 bytes, rather than 2, so offset it here appropriately. */
5760 case BFD_RELOC_PPC_EMB_SDA21:
5764 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where
5765 + ((target_big_endian) ? 2 : 0),
5773 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5777 case BFD_RELOC_24_PLT_PCREL:
5778 case BFD_RELOC_PPC_LOCAL24PC:
5779 if (!fixP->fx_pcrel && !fixP->fx_done)
5787 /* Fetch the instruction, insert the fully resolved operand
5788 value, and stuff the instruction back again. */
5789 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5790 if (target_big_endian)
5791 insn = bfd_getb32 ((unsigned char *) where);
5793 insn = bfd_getl32 ((unsigned char *) where);
5794 if ((value & 3) != 0)
5795 as_bad_where (fixP->fx_file, fixP->fx_line,
5796 _("must branch to an address a multiple of 4"));
5797 if ((offsetT) value < -0x40000000
5798 || (offsetT) value >= 0x40000000)
5799 as_bad_where (fixP->fx_file, fixP->fx_line,
5800 _("@local or @plt branch destination is too far away, %ld bytes"),
5802 insn = insn | (value & 0x03fffffc);
5803 if (target_big_endian)
5804 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5806 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5810 case BFD_RELOC_VTABLE_INHERIT:
5813 && !S_IS_DEFINED (fixP->fx_addsy)
5814 && !S_IS_WEAK (fixP->fx_addsy))
5815 S_SET_WEAK (fixP->fx_addsy);
5818 case BFD_RELOC_VTABLE_ENTRY:
5823 /* Generated by reference to `sym@tocbase'. The sym is
5824 ignored by the linker. */
5825 case BFD_RELOC_PPC64_TOC:
5831 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
5838 fixP->fx_addnumber = value;
5840 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
5841 fixP->fx_addnumber = 0;
5845 fixP->fx_addnumber = 0;
5847 /* We want to use the offset within the data segment of the
5848 symbol, not the actual VMA of the symbol. */
5849 fixP->fx_addnumber =
5850 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy));
5856 /* Generate a reloc for a fixup. */
5859 tc_gen_reloc (seg, fixp)
5860 asection *seg ATTRIBUTE_UNUSED;
5865 reloc = (arelent *) xmalloc (sizeof (arelent));
5867 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
5868 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
5869 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
5870 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
5871 if (reloc->howto == (reloc_howto_type *) NULL)
5873 as_bad_where (fixp->fx_file, fixp->fx_line,
5874 _("reloc %d not supported by object file format"),
5875 (int) fixp->fx_r_type);
5878 reloc->addend = fixp->fx_addnumber;