1 /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000)
2 Copyright (C) 1994-2014 Free Software Foundation, Inc.
3 Written by Ian Lance Taylor, Cygnus Support.
5 This file is part of GAS, the GNU Assembler.
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
23 #include "safe-ctype.h"
25 #include "dw2gencfi.h"
26 #include "opcode/ppc.h"
30 #include "elf/ppc64.h"
31 #include "dwarf2dbg.h"
39 #include "coff/xcoff.h"
43 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
45 /* Tell the main code what the endianness is. */
46 extern int target_big_endian
;
48 /* Whether or not, we've set target_big_endian. */
49 static int set_target_endian
= 0;
51 /* Whether to use user friendly register names. */
52 #ifndef TARGET_REG_NAMES_P
54 #define TARGET_REG_NAMES_P TRUE
56 #define TARGET_REG_NAMES_P FALSE
60 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
63 /* #lo(value) denotes the least significant 16 bits of the indicated. */
64 #define PPC_LO(v) ((v) & 0xffff)
66 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
67 #define PPC_HI(v) (((v) >> 16) & 0xffff)
69 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
70 the indicated value, compensating for #lo() being treated as a
72 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
74 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
75 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
77 /* #highera(value) denotes bits 32 through 47 of the indicated value,
78 compensating for #lo() being treated as a signed number. */
79 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
81 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
82 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
84 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
85 compensating for #lo being treated as a signed number. */
86 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
88 #define SEX16(val) (((val) ^ 0x8000) - 0x8000)
90 /* For the time being on ppc64, don't report overflow on @h and @ha
91 applied to constants. */
92 #define REPORT_OVERFLOW_HI 0
94 static bfd_boolean reg_names_p
= TARGET_REG_NAMES_P
;
96 static void ppc_macro (char *, const struct powerpc_macro
*);
97 static void ppc_byte (int);
99 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
100 static void ppc_tc (int);
101 static void ppc_machine (int);
105 static void ppc_comm (int);
106 static void ppc_bb (int);
107 static void ppc_bc (int);
108 static void ppc_bf (int);
109 static void ppc_biei (int);
110 static void ppc_bs (int);
111 static void ppc_eb (int);
112 static void ppc_ec (int);
113 static void ppc_ef (int);
114 static void ppc_es (int);
115 static void ppc_csect (int);
116 static void ppc_dwsect (int);
117 static void ppc_change_csect (symbolS
*, offsetT
);
118 static void ppc_function (int);
119 static void ppc_extern (int);
120 static void ppc_lglobl (int);
121 static void ppc_ref (int);
122 static void ppc_section (int);
123 static void ppc_named_section (int);
124 static void ppc_stabx (int);
125 static void ppc_rename (int);
126 static void ppc_toc (int);
127 static void ppc_xcoff_cons (int);
128 static void ppc_vbyte (int);
132 static void ppc_elf_cons (int);
133 static void ppc_elf_rdata (int);
134 static void ppc_elf_lcomm (int);
135 static void ppc_elf_localentry (int);
136 static void ppc_elf_abiversion (int);
140 static void ppc_previous (int);
141 static void ppc_pdata (int);
142 static void ppc_ydata (int);
143 static void ppc_reldata (int);
144 static void ppc_rdata (int);
145 static void ppc_ualong (int);
146 static void ppc_znop (int);
147 static void ppc_pe_comm (int);
148 static void ppc_pe_section (int);
149 static void ppc_pe_function (int);
150 static void ppc_pe_tocd (int);
153 /* Generic assembler global variables which must be defined by all
157 /* This string holds the chars that always start a comment. If the
158 pre-processor is disabled, these aren't very useful. The macro
159 tc_comment_chars points to this. We use this, rather than the
160 usual comment_chars, so that we can switch for Solaris conventions. */
161 static const char ppc_solaris_comment_chars
[] = "#!";
162 static const char ppc_eabi_comment_chars
[] = "#";
164 #ifdef TARGET_SOLARIS_COMMENT
165 const char *ppc_comment_chars
= ppc_solaris_comment_chars
;
167 const char *ppc_comment_chars
= ppc_eabi_comment_chars
;
170 const char comment_chars
[] = "#";
173 /* Characters which start a comment at the beginning of a line. */
174 const char line_comment_chars
[] = "#";
176 /* Characters which may be used to separate multiple commands on a
178 const char line_separator_chars
[] = ";";
180 /* Characters which are used to indicate an exponent in a floating
182 const char EXP_CHARS
[] = "eE";
184 /* Characters which mean that a number is a floating point constant,
186 const char FLT_CHARS
[] = "dD";
188 /* Anything that can start an operand needs to be mentioned here,
189 to stop the input scrubber eating whitespace. */
190 const char ppc_symbol_chars
[] = "%[";
192 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
193 int ppc_cie_data_alignment
;
195 /* The dwarf2 minimum instruction length. */
196 int ppc_dwarf2_line_min_insn_length
;
198 /* More than this number of nops in an alignment op gets a branch
200 unsigned long nop_limit
= 4;
202 /* The type of processor we are assembling for. This is one or more
203 of the PPC_OPCODE flags defined in opcode/ppc.h. */
204 ppc_cpu_t ppc_cpu
= 0;
205 ppc_cpu_t sticky
= 0;
207 /* Value for ELF e_flags EF_PPC64_ABI. */
208 unsigned int ppc_abiversion
= 0;
210 /* Flags set on encountering toc relocs. */
212 has_large_toc_reloc
= 1,
213 has_small_toc_reloc
= 2
216 /* The target specific pseudo-ops which we support. */
218 const pseudo_typeS md_pseudo_table
[] =
220 /* Pseudo-ops which must be overridden. */
221 { "byte", ppc_byte
, 0 },
224 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
225 legitimately belong in the obj-*.c file. However, XCOFF is based
226 on COFF, and is only implemented for the RS/6000. We just use
227 obj-coff.c, and add what we need here. */
228 { "comm", ppc_comm
, 0 },
229 { "lcomm", ppc_comm
, 1 },
233 { "bi", ppc_biei
, 0 },
235 { "csect", ppc_csect
, 0 },
236 { "dwsect", ppc_dwsect
, 0 },
237 { "data", ppc_section
, 'd' },
241 { "ei", ppc_biei
, 1 },
243 { "extern", ppc_extern
, 0 },
244 { "function", ppc_function
, 0 },
245 { "lglobl", ppc_lglobl
, 0 },
246 { "ref", ppc_ref
, 0 },
247 { "rename", ppc_rename
, 0 },
248 { "section", ppc_named_section
, 0 },
249 { "stabx", ppc_stabx
, 0 },
250 { "text", ppc_section
, 't' },
251 { "toc", ppc_toc
, 0 },
252 { "long", ppc_xcoff_cons
, 2 },
253 { "llong", ppc_xcoff_cons
, 3 },
254 { "word", ppc_xcoff_cons
, 1 },
255 { "short", ppc_xcoff_cons
, 1 },
256 { "vbyte", ppc_vbyte
, 0 },
260 { "llong", ppc_elf_cons
, 8 },
261 { "quad", ppc_elf_cons
, 8 },
262 { "long", ppc_elf_cons
, 4 },
263 { "word", ppc_elf_cons
, 2 },
264 { "short", ppc_elf_cons
, 2 },
265 { "rdata", ppc_elf_rdata
, 0 },
266 { "rodata", ppc_elf_rdata
, 0 },
267 { "lcomm", ppc_elf_lcomm
, 0 },
268 { "localentry", ppc_elf_localentry
, 0 },
269 { "abiversion", ppc_elf_abiversion
, 0 },
273 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
274 { "previous", ppc_previous
, 0 },
275 { "pdata", ppc_pdata
, 0 },
276 { "ydata", ppc_ydata
, 0 },
277 { "reldata", ppc_reldata
, 0 },
278 { "rdata", ppc_rdata
, 0 },
279 { "ualong", ppc_ualong
, 0 },
280 { "znop", ppc_znop
, 0 },
281 { "comm", ppc_pe_comm
, 0 },
282 { "lcomm", ppc_pe_comm
, 1 },
283 { "section", ppc_pe_section
, 0 },
284 { "function", ppc_pe_function
,0 },
285 { "tocd", ppc_pe_tocd
, 0 },
288 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
290 { "machine", ppc_machine
, 0 },
297 /* Predefined register names if -mregnames (or default for Windows NT).
298 In general, there are lots of them, in an attempt to be compatible
299 with a number of other Windows NT assemblers. */
301 /* Structure to hold information about predefined registers. */
308 /* List of registers that are pre-defined:
310 Each general register has predefined names of the form:
311 1. r<reg_num> which has the value <reg_num>.
312 2. r.<reg_num> which has the value <reg_num>.
314 Each floating point register has predefined names of the form:
315 1. f<reg_num> which has the value <reg_num>.
316 2. f.<reg_num> which has the value <reg_num>.
318 Each vector unit register has predefined names of the form:
319 1. v<reg_num> which has the value <reg_num>.
320 2. v.<reg_num> which has the value <reg_num>.
322 Each condition register has predefined names of the form:
323 1. cr<reg_num> which has the value <reg_num>.
324 2. cr.<reg_num> which has the value <reg_num>.
326 There are individual registers as well:
327 sp or r.sp has the value 1
328 rtoc or r.toc has the value 2
329 fpscr has the value 0
335 dsisr has the value 18
337 sdr1 has the value 25
338 srr0 has the value 26
339 srr1 has the value 27
341 The table is sorted. Suitable for searching by a binary search. */
343 static const struct pd_reg pre_defined_registers
[] =
345 { "cr.0", 0 }, /* Condition Registers */
365 { "dar", 19 }, /* Data Access Register */
366 { "dec", 22 }, /* Decrementer */
367 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
369 { "f.0", 0 }, /* Floating point registers */
396 { "f.32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
462 { "f32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
503 /* Quantization registers used with pair single instructions. */
521 { "lr", 8 }, /* Link Register */
525 { "r.0", 0 }, /* General Purpose Registers */
558 { "r.sp", 1 }, /* Stack Pointer */
560 { "r.toc", 2 }, /* Pointer to the table of contents */
562 { "r0", 0 }, /* More general purpose registers */
595 { "rtoc", 2 }, /* Table of contents */
597 { "sdr1", 25 }, /* Storage Description Register 1 */
601 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
602 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
604 { "v.0", 0 }, /* Vector (Altivec/VMX) registers */
670 { "vs.0", 0 }, /* Vector Scalar (VSX) registers (ISA 2.06). */
804 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
806 /* Given NAME, find the register number associated with that name, return
807 the integer value associated with the given name or -1 on failure. */
810 reg_name_search (const struct pd_reg
*regs
, int regcount
, const char *name
)
812 int middle
, low
, high
;
820 middle
= (low
+ high
) / 2;
821 cmp
= strcasecmp (name
, regs
[middle
].name
);
827 return regs
[middle
].value
;
835 * Summary of register_name.
837 * in: Input_line_pointer points to 1st char of operand.
839 * out: A expressionS.
840 * The operand may have been a register: in this case, X_op == O_register,
841 * X_add_number is set to the register number, and truth is returned.
842 * Input_line_pointer->(next non-blank) char after operand, or is in its
847 register_name (expressionS
*expressionP
)
854 /* Find the spelling of the operand. */
855 start
= name
= input_line_pointer
;
856 if (name
[0] == '%' && ISALPHA (name
[1]))
857 name
= ++input_line_pointer
;
859 else if (!reg_names_p
|| !ISALPHA (name
[0]))
862 c
= get_symbol_end ();
863 reg_number
= reg_name_search (pre_defined_registers
, REG_NAME_CNT
, name
);
865 /* Put back the delimiting char. */
866 *input_line_pointer
= c
;
868 /* Look to see if it's in the register table. */
871 expressionP
->X_op
= O_register
;
872 expressionP
->X_add_number
= reg_number
;
874 /* Make the rest nice. */
875 expressionP
->X_add_symbol
= NULL
;
876 expressionP
->X_op_symbol
= NULL
;
880 /* Reset the line as if we had not done anything. */
881 input_line_pointer
= start
;
885 /* This function is called for each symbol seen in an expression. It
886 handles the special parsing which PowerPC assemblers are supposed
887 to use for condition codes. */
889 /* Whether to do the special parsing. */
890 static bfd_boolean cr_operand
;
892 /* Names to recognize in a condition code. This table is sorted. */
893 static const struct pd_reg cr_names
[] =
910 /* Parsing function. This returns non-zero if it recognized an
914 ppc_parse_name (const char *name
, expressionS
*exp
)
923 val
= reg_name_search (cr_names
, sizeof cr_names
/ sizeof cr_names
[0],
928 exp
->X_op
= O_constant
;
929 exp
->X_add_number
= val
;
934 /* Local variables. */
936 /* Whether to target xcoff64/elf64. */
937 static unsigned int ppc_obj64
= BFD_DEFAULT_TARGET_SIZE
== 64;
939 /* Opcode hash table. */
940 static struct hash_control
*ppc_hash
;
942 /* Macro hash table. */
943 static struct hash_control
*ppc_macro_hash
;
946 /* What type of shared library support to use. */
947 static enum { SHLIB_NONE
, SHLIB_PIC
, SHLIB_MRELOCATABLE
} shlib
= SHLIB_NONE
;
949 /* Flags to set in the elf header. */
950 static flagword ppc_flags
= 0;
952 /* Whether this is Solaris or not. */
953 #ifdef TARGET_SOLARIS_COMMENT
954 #define SOLARIS_P TRUE
956 #define SOLARIS_P FALSE
959 static bfd_boolean msolaris
= SOLARIS_P
;
964 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
965 using a bunch of different sections. These assembler sections,
966 however, are all encompassed within the .text or .data sections of
967 the final output file. We handle this by using different
968 subsegments within these main segments. */
970 /* Next subsegment to allocate within the .text segment. */
971 static subsegT ppc_text_subsegment
= 2;
973 /* Linked list of csects in the text section. */
974 static symbolS
*ppc_text_csects
;
976 /* Next subsegment to allocate within the .data segment. */
977 static subsegT ppc_data_subsegment
= 2;
979 /* Linked list of csects in the data section. */
980 static symbolS
*ppc_data_csects
;
982 /* The current csect. */
983 static symbolS
*ppc_current_csect
;
985 /* The RS/6000 assembler uses a TOC which holds addresses of functions
986 and variables. Symbols are put in the TOC with the .tc pseudo-op.
987 A special relocation is used when accessing TOC entries. We handle
988 the TOC as a subsegment within the .data segment. We set it up if
989 we see a .toc pseudo-op, and save the csect symbol here. */
990 static symbolS
*ppc_toc_csect
;
992 /* The first frag in the TOC subsegment. */
993 static fragS
*ppc_toc_frag
;
995 /* The first frag in the first subsegment after the TOC in the .data
996 segment. NULL if there are no subsegments after the TOC. */
997 static fragS
*ppc_after_toc_frag
;
999 /* The current static block. */
1000 static symbolS
*ppc_current_block
;
1002 /* The COFF debugging section; set by md_begin. This is not the
1003 .debug section, but is instead the secret BFD section which will
1004 cause BFD to set the section number of a symbol to N_DEBUG. */
1005 static asection
*ppc_coff_debug_section
;
1007 /* Structure to set the length field of the dwarf sections. */
1008 struct dw_subsection
{
1009 /* Subsections are simply linked. */
1010 struct dw_subsection
*link
;
1012 /* The subsection number. */
1015 /* Expression to compute the length of the section. */
1016 expressionS end_exp
;
1019 static struct dw_section
{
1020 /* Corresponding section. */
1023 /* Simply linked list of subsections with a label. */
1024 struct dw_subsection
*list_subseg
;
1026 /* The anonymous subsection. */
1027 struct dw_subsection
*anon_subseg
;
1028 } dw_sections
[XCOFF_DWSECT_NBR_NAMES
];
1029 #endif /* OBJ_XCOFF */
1033 /* Various sections that we need for PE coff support. */
1034 static segT ydata_section
;
1035 static segT pdata_section
;
1036 static segT reldata_section
;
1037 static segT rdata_section
;
1038 static segT tocdata_section
;
1040 /* The current section and the previous section. See ppc_previous. */
1041 static segT ppc_previous_section
;
1042 static segT ppc_current_section
;
1047 symbolS
*GOT_symbol
; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
1048 #define PPC_APUINFO_ISEL 0x40
1049 #define PPC_APUINFO_PMR 0x41
1050 #define PPC_APUINFO_RFMCI 0x42
1051 #define PPC_APUINFO_CACHELCK 0x43
1052 #define PPC_APUINFO_SPE 0x100
1053 #define PPC_APUINFO_EFS 0x101
1054 #define PPC_APUINFO_BRLOCK 0x102
1055 #define PPC_APUINFO_VLE 0x104
1058 * We keep a list of APUinfo
1060 unsigned long *ppc_apuinfo_list
;
1061 unsigned int ppc_apuinfo_num
;
1062 unsigned int ppc_apuinfo_num_alloc
;
1063 #endif /* OBJ_ELF */
1066 const char *const md_shortopts
= "b:l:usm:K:VQ:";
1068 const char *const md_shortopts
= "um:";
1070 #define OPTION_NOPS (OPTION_MD_BASE + 0)
1071 const struct option md_longopts
[] = {
1072 {"nops", required_argument
, NULL
, OPTION_NOPS
},
1073 {NULL
, no_argument
, NULL
, 0}
1075 const size_t md_longopts_size
= sizeof (md_longopts
);
1078 md_parse_option (int c
, char *arg
)
1085 /* -u means that any undefined symbols should be treated as
1086 external, which is the default for gas anyhow. */
1091 /* Solaris as takes -le (presumably for little endian). For completeness
1092 sake, recognize -be also. */
1093 if (strcmp (arg
, "e") == 0)
1095 target_big_endian
= 0;
1096 set_target_endian
= 1;
1097 if (ppc_cpu
& PPC_OPCODE_VLE
)
1098 as_bad (_("the use of -mvle requires big endian."));
1106 if (strcmp (arg
, "e") == 0)
1108 target_big_endian
= 1;
1109 set_target_endian
= 1;
1117 /* Recognize -K PIC. */
1118 if (strcmp (arg
, "PIC") == 0 || strcmp (arg
, "pic") == 0)
1121 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
1129 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
1131 if (strcmp (arg
, "64") == 0)
1135 if (ppc_cpu
& PPC_OPCODE_VLE
)
1136 as_bad (_("the use of -mvle requires -a32."));
1138 as_fatal (_("%s unsupported"), "-a64");
1141 else if (strcmp (arg
, "32") == 0)
1148 new_cpu
= ppc_parse_cpu (ppc_cpu
, &sticky
, arg
);
1152 if (strcmp (arg
, "vle") == 0)
1154 if (set_target_endian
&& target_big_endian
== 0)
1155 as_bad (_("the use of -mvle requires big endian."));
1157 as_bad (_("the use of -mvle requires -a32."));
1161 else if (strcmp (arg
, "regnames") == 0)
1164 else if (strcmp (arg
, "no-regnames") == 0)
1165 reg_names_p
= FALSE
;
1168 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1169 that require relocation. */
1170 else if (strcmp (arg
, "relocatable") == 0)
1172 shlib
= SHLIB_MRELOCATABLE
;
1173 ppc_flags
|= EF_PPC_RELOCATABLE
;
1176 else if (strcmp (arg
, "relocatable-lib") == 0)
1178 shlib
= SHLIB_MRELOCATABLE
;
1179 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
1182 /* -memb, set embedded bit. */
1183 else if (strcmp (arg
, "emb") == 0)
1184 ppc_flags
|= EF_PPC_EMB
;
1186 /* -mlittle/-mbig set the endianness. */
1187 else if (strcmp (arg
, "little") == 0
1188 || strcmp (arg
, "little-endian") == 0)
1190 target_big_endian
= 0;
1191 set_target_endian
= 1;
1192 if (ppc_cpu
& PPC_OPCODE_VLE
)
1193 as_bad (_("the use of -mvle requires big endian."));
1196 else if (strcmp (arg
, "big") == 0 || strcmp (arg
, "big-endian") == 0)
1198 target_big_endian
= 1;
1199 set_target_endian
= 1;
1202 else if (strcmp (arg
, "solaris") == 0)
1205 ppc_comment_chars
= ppc_solaris_comment_chars
;
1208 else if (strcmp (arg
, "no-solaris") == 0)
1211 ppc_comment_chars
= ppc_eabi_comment_chars
;
1216 as_bad (_("invalid switch -m%s"), arg
);
1222 /* -V: SVR4 argument to print version ID. */
1224 print_version_id ();
1227 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1228 should be emitted or not. FIXME: Not implemented. */
1232 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1233 rather than .stabs.excl, which is ignored by the linker.
1234 FIXME: Not implemented. */
1245 nop_limit
= strtoul (optarg
, &end
, 0);
1247 as_bad (_("--nops needs a numeric argument"));
1259 md_show_usage (FILE *stream
)
1261 fprintf (stream
, _("\
1263 -a32 generate ELF32/XCOFF32\n\
1264 -a64 generate ELF64/XCOFF64\n\
1266 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1267 -mpwr generate code for POWER (RIOS1)\n\
1268 -m601 generate code for PowerPC 601\n\
1269 -mppc, -mppc32, -m603, -m604\n\
1270 generate code for PowerPC 603/604\n\
1271 -m403 generate code for PowerPC 403\n\
1272 -m405 generate code for PowerPC 405\n\
1273 -m440 generate code for PowerPC 440\n\
1274 -m464 generate code for PowerPC 464\n\
1275 -m476 generate code for PowerPC 476\n\
1276 -m7400, -m7410, -m7450, -m7455\n\
1277 generate code for PowerPC 7400/7410/7450/7455\n\
1278 -m750cl generate code for PowerPC 750cl\n"));
1279 fprintf (stream
, _("\
1280 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1281 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1282 -mbooke generate code for 32-bit PowerPC BookE\n\
1283 -ma2 generate code for A2 architecture\n\
1284 -mpower4, -mpwr4 generate code for Power4 architecture\n\
1285 -mpower5, -mpwr5, -mpwr5x\n\
1286 generate code for Power5 architecture\n\
1287 -mpower6, -mpwr6 generate code for Power6 architecture\n\
1288 -mpower7, -mpwr7 generate code for Power7 architecture\n\
1289 -mpower8, -mpwr8 generate code for Power8 architecture\n\
1290 -mcell generate code for Cell Broadband Engine architecture\n\
1291 -mcom generate code Power/PowerPC common instructions\n\
1292 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1293 fprintf (stream
, _("\
1294 -maltivec generate code for AltiVec\n\
1295 -mvsx generate code for Vector-Scalar (VSX) instructions\n\
1296 -mhtm generate code for Hardware Transactional Memory\n\
1297 -me300 generate code for PowerPC e300 family\n\
1298 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1299 -me500mc, generate code for Freescale e500mc core complex\n\
1300 -me500mc64, generate code for Freescale e500mc64 core complex\n\
1301 -me5500, generate code for Freescale e5500 core complex\n\
1302 -me6500, generate code for Freescale e6500 core complex\n\
1303 -mspe generate code for Motorola SPE instructions\n\
1304 -mvle generate code for Freescale VLE instructions\n\
1305 -mtitan generate code for AppliedMicro Titan core complex\n\
1306 -mregnames Allow symbolic names for registers\n\
1307 -mno-regnames Do not allow symbolic names for registers\n"));
1309 fprintf (stream
, _("\
1310 -mrelocatable support for GCC's -mrelocatble option\n\
1311 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1312 -memb set PPC_EMB bit in ELF flags\n\
1313 -mlittle, -mlittle-endian, -le\n\
1314 generate code for a little endian machine\n\
1315 -mbig, -mbig-endian, -be\n\
1316 generate code for a big endian machine\n\
1317 -msolaris generate code for Solaris\n\
1318 -mno-solaris do not generate code for Solaris\n\
1319 -K PIC set EF_PPC_RELOCATABLE_LIB in ELF flags\n\
1320 -V print assembler version number\n\
1321 -Qy, -Qn ignored\n"));
1323 fprintf (stream
, _("\
1324 -nops=count when aligning, more than COUNT nops uses a branch\n"));
1327 /* Set ppc_cpu if it is not already set. */
1332 const char *default_os
= TARGET_OS
;
1333 const char *default_cpu
= TARGET_CPU
;
1335 if ((ppc_cpu
& ~(ppc_cpu_t
) PPC_OPCODE_ANY
) == 0)
1338 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_64
;
1339 else if (strncmp (default_os
, "aix", 3) == 0
1340 && default_os
[3] >= '4' && default_os
[3] <= '9')
1341 ppc_cpu
|= PPC_OPCODE_COMMON
;
1342 else if (strncmp (default_os
, "aix3", 4) == 0)
1343 ppc_cpu
|= PPC_OPCODE_POWER
;
1344 else if (strcmp (default_cpu
, "rs6000") == 0)
1345 ppc_cpu
|= PPC_OPCODE_POWER
;
1346 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1347 ppc_cpu
|= PPC_OPCODE_PPC
;
1349 as_fatal (_("unknown default cpu = %s, os = %s"),
1350 default_cpu
, default_os
);
1354 /* Figure out the BFD architecture to use. This function and ppc_mach
1355 are called well before md_begin, when the output file is opened. */
1357 enum bfd_architecture
1360 const char *default_cpu
= TARGET_CPU
;
1363 if ((ppc_cpu
& PPC_OPCODE_PPC
) != 0)
1364 return bfd_arch_powerpc
;
1365 if ((ppc_cpu
& PPC_OPCODE_VLE
) != 0)
1366 return bfd_arch_powerpc
;
1367 if ((ppc_cpu
& PPC_OPCODE_POWER
) != 0)
1368 return bfd_arch_rs6000
;
1369 if ((ppc_cpu
& (PPC_OPCODE_COMMON
| PPC_OPCODE_ANY
)) != 0)
1371 if (strcmp (default_cpu
, "rs6000") == 0)
1372 return bfd_arch_rs6000
;
1373 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1374 return bfd_arch_powerpc
;
1377 as_fatal (_("neither Power nor PowerPC opcodes were selected."));
1378 return bfd_arch_unknown
;
1385 return bfd_mach_ppc64
;
1386 else if (ppc_arch () == bfd_arch_rs6000
)
1387 return bfd_mach_rs6k
;
1388 else if (ppc_cpu
& PPC_OPCODE_TITAN
)
1389 return bfd_mach_ppc_titan
;
1390 else if (ppc_cpu
& PPC_OPCODE_VLE
)
1391 return bfd_mach_ppc_vle
;
1393 return bfd_mach_ppc
;
1397 ppc_target_format (void)
1401 return target_big_endian
? "pe-powerpc" : "pe-powerpcle";
1403 return "xcoff-powermac";
1406 return (ppc_obj64
? "aix5coff64-rs6000" : "aixcoff-rs6000");
1408 return (ppc_obj64
? "aixcoff64-rs6000" : "aixcoff-rs6000");
1414 return (ppc_obj64
? "elf64-powerpc-freebsd" : "elf32-powerpc-freebsd");
1415 # elif defined (TE_VXWORKS)
1416 return "elf32-powerpc-vxworks";
1418 return (target_big_endian
1419 ? (ppc_obj64
? "elf64-powerpc" : "elf32-powerpc")
1420 : (ppc_obj64
? "elf64-powerpcle" : "elf32-powerpcle"));
1425 /* Validate one entry in powerpc_opcodes[] or vle_opcodes[].
1426 Return TRUE if there's a problem, otherwise FALSE. */
1429 insn_validate (const struct powerpc_opcode
*op
)
1431 const unsigned char *o
;
1432 unsigned long omask
= op
->mask
;
1434 /* The mask had better not trim off opcode bits. */
1435 if ((op
->opcode
& omask
) != op
->opcode
)
1437 as_bad (_("mask trims opcode bits for %s"), op
->name
);
1441 /* The operands must not overlap the opcode or each other. */
1442 for (o
= op
->operands
; *o
; ++o
)
1444 if (*o
>= num_powerpc_operands
)
1446 as_bad (_("operand index error for %s"), op
->name
);
1451 const struct powerpc_operand
*operand
= &powerpc_operands
[*o
];
1452 if (operand
->shift
!= PPC_OPSHIFT_INV
)
1456 if (operand
->shift
>= 0)
1457 mask
= operand
->bitm
<< operand
->shift
;
1459 mask
= operand
->bitm
>> -operand
->shift
;
1462 as_bad (_("operand %d overlap in %s"),
1463 (int) (o
- op
->operands
), op
->name
);
1473 /* Insert opcodes and macros into hash tables. Called at startup and
1474 for .machine pseudo. */
1477 ppc_setup_opcodes (void)
1479 const struct powerpc_opcode
*op
;
1480 const struct powerpc_opcode
*op_end
;
1481 const struct powerpc_macro
*macro
;
1482 const struct powerpc_macro
*macro_end
;
1483 bfd_boolean bad_insn
= FALSE
;
1485 if (ppc_hash
!= NULL
)
1486 hash_die (ppc_hash
);
1487 if (ppc_macro_hash
!= NULL
)
1488 hash_die (ppc_macro_hash
);
1490 /* Insert the opcodes into a hash table. */
1491 ppc_hash
= hash_new ();
1493 if (ENABLE_CHECKING
)
1497 /* An index into powerpc_operands is stored in struct fix
1498 fx_pcrel_adjust which is 8 bits wide. */
1499 gas_assert (num_powerpc_operands
< 256);
1501 /* Check operand masks. Code here and in the disassembler assumes
1502 all the 1's in the mask are contiguous. */
1503 for (i
= 0; i
< num_powerpc_operands
; ++i
)
1505 unsigned long mask
= powerpc_operands
[i
].bitm
;
1506 unsigned long right_bit
;
1509 right_bit
= mask
& -mask
;
1511 right_bit
= mask
& -mask
;
1512 if (mask
!= right_bit
)
1514 as_bad (_("powerpc_operands[%d].bitm invalid"), i
);
1517 for (j
= i
+ 1; j
< num_powerpc_operands
; ++j
)
1518 if (memcmp (&powerpc_operands
[i
], &powerpc_operands
[j
],
1519 sizeof (powerpc_operands
[0])) == 0)
1521 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1528 op_end
= powerpc_opcodes
+ powerpc_num_opcodes
;
1529 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1531 if (ENABLE_CHECKING
)
1533 if (op
!= powerpc_opcodes
)
1535 int old_opcode
= PPC_OP (op
[-1].opcode
);
1536 int new_opcode
= PPC_OP (op
[0].opcode
);
1538 #ifdef PRINT_OPCODE_TABLE
1539 printf ("%-14s\t#%04u\tmajor op: 0x%x\top: 0x%x\tmask: 0x%x\tflags: 0x%llx\n",
1540 op
->name
, (unsigned int) (op
- powerpc_opcodes
),
1541 (unsigned int) new_opcode
, (unsigned int) op
->opcode
,
1542 (unsigned int) op
->mask
, (unsigned long long) op
->flags
);
1545 /* The major opcodes had better be sorted. Code in the
1546 disassembler assumes the insns are sorted according to
1548 if (new_opcode
< old_opcode
)
1550 as_bad (_("major opcode is not sorted for %s"),
1555 bad_insn
|= insn_validate (op
);
1558 if ((ppc_cpu
& op
->flags
) != 0
1559 && !(ppc_cpu
& op
->deprecated
))
1563 retval
= hash_insert (ppc_hash
, op
->name
, (void *) op
);
1566 as_bad (_("duplicate instruction %s"),
1573 if ((ppc_cpu
& PPC_OPCODE_ANY
) != 0)
1574 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1575 hash_insert (ppc_hash
, op
->name
, (void *) op
);
1577 op_end
= vle_opcodes
+ vle_num_opcodes
;
1578 for (op
= vle_opcodes
; op
< op_end
; op
++)
1580 if (ENABLE_CHECKING
)
1582 if (op
!= vle_opcodes
)
1584 unsigned old_seg
, new_seg
;
1586 old_seg
= VLE_OP (op
[-1].opcode
, op
[-1].mask
);
1587 old_seg
= VLE_OP_TO_SEG (old_seg
);
1588 new_seg
= VLE_OP (op
[0].opcode
, op
[0].mask
);
1589 new_seg
= VLE_OP_TO_SEG (new_seg
);
1591 #ifdef PRINT_OPCODE_TABLE
1592 printf ("%-14s\t#%04u\tmajor op: 0x%x\top: 0x%x\tmask: 0x%x\tflags: 0x%llx\n",
1593 op
->name
, (unsigned int) (op
- powerpc_opcodes
),
1594 (unsigned int) new_seg
, (unsigned int) op
->opcode
,
1595 (unsigned int) op
->mask
, (unsigned long long) op
->flags
);
1597 /* The major opcodes had better be sorted. Code in the
1598 disassembler assumes the insns are sorted according to
1600 if (new_seg
< old_seg
)
1602 as_bad (_("major opcode is not sorted for %s"),
1608 bad_insn
|= insn_validate (op
);
1611 if ((ppc_cpu
& op
->flags
) != 0
1612 && !(ppc_cpu
& op
->deprecated
))
1616 retval
= hash_insert (ppc_hash
, op
->name
, (void *) op
);
1619 as_bad (_("duplicate instruction %s"),
1626 if ((ppc_cpu
& PPC_OPCODE_VLE
) != 0)
1627 for (op
= vle_opcodes
; op
< op_end
; op
++)
1628 hash_insert (ppc_hash
, op
->name
, (void *) op
);
1630 /* Insert the macros into a hash table. */
1631 ppc_macro_hash
= hash_new ();
1633 macro_end
= powerpc_macros
+ powerpc_num_macros
;
1634 for (macro
= powerpc_macros
; macro
< macro_end
; macro
++)
1636 if ((macro
->flags
& ppc_cpu
) != 0 || (ppc_cpu
& PPC_OPCODE_ANY
) != 0)
1640 retval
= hash_insert (ppc_macro_hash
, macro
->name
, (void *) macro
);
1641 if (retval
!= (const char *) NULL
)
1643 as_bad (_("duplicate macro %s"), macro
->name
);
1653 /* This function is called when the assembler starts up. It is called
1654 after the options have been parsed and the output file has been
1662 ppc_cie_data_alignment
= ppc_obj64
? -8 : -4;
1663 ppc_dwarf2_line_min_insn_length
= (ppc_cpu
& PPC_OPCODE_VLE
) ? 2 : 4;
1666 /* Set the ELF flags if desired. */
1667 if (ppc_flags
&& !msolaris
)
1668 bfd_set_private_flags (stdoutput
, ppc_flags
);
1671 ppc_setup_opcodes ();
1673 /* Tell the main code what the endianness is if it is not overridden
1675 if (!set_target_endian
)
1677 set_target_endian
= 1;
1678 target_big_endian
= PPC_BIG_ENDIAN
;
1682 ppc_coff_debug_section
= coff_section_from_bfd_index (stdoutput
, N_DEBUG
);
1684 /* Create dummy symbols to serve as initial csects. This forces the
1685 text csects to precede the data csects. These symbols will not
1687 ppc_text_csects
= symbol_make ("dummy\001");
1688 symbol_get_tc (ppc_text_csects
)->within
= ppc_text_csects
;
1689 ppc_data_csects
= symbol_make ("dummy\001");
1690 symbol_get_tc (ppc_data_csects
)->within
= ppc_data_csects
;
1695 ppc_current_section
= text_section
;
1696 ppc_previous_section
= 0;
1705 if (ppc_apuinfo_list
== NULL
)
1708 /* Ok, so write the section info out. We have this layout:
1712 0 8 length of "APUinfo\0"
1713 4 (n*4) number of APU's (4 bytes each)
1716 20 APU#1 first APU's info
1717 24 APU#2 second APU's info
1722 asection
*seg
= now_seg
;
1723 subsegT subseg
= now_subseg
;
1724 asection
*apuinfo_secp
= (asection
*) NULL
;
1727 /* Create the .PPC.EMB.apuinfo section. */
1728 apuinfo_secp
= subseg_new (".PPC.EMB.apuinfo", 0);
1729 bfd_set_section_flags (stdoutput
,
1731 SEC_HAS_CONTENTS
| SEC_READONLY
);
1734 md_number_to_chars (p
, (valueT
) 8, 4);
1737 md_number_to_chars (p
, (valueT
) ppc_apuinfo_num
* 4, 4);
1740 md_number_to_chars (p
, (valueT
) 2, 4);
1743 strcpy (p
, "APUinfo");
1745 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
1748 md_number_to_chars (p
, (valueT
) ppc_apuinfo_list
[i
], 4);
1751 frag_align (2, 0, 0);
1753 /* We probably can't restore the current segment, for there likely
1756 subseg_set (seg
, subseg
);
1761 /* Insert an operand value into an instruction. */
1763 static unsigned long
1764 ppc_insert_operand (unsigned long insn
,
1765 const struct powerpc_operand
*operand
,
1771 long min
, max
, right
;
1773 max
= operand
->bitm
;
1777 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
1779 if ((operand
->flags
& PPC_OPERAND_SIGNOPT
) == 0)
1780 max
= (max
>> 1) & -right
;
1781 min
= ~max
& -right
;
1784 if ((operand
->flags
& PPC_OPERAND_PLUS1
) != 0)
1787 if ((operand
->flags
& PPC_OPERAND_NEGATIVE
) != 0)
1796 /* Some people write constants with the sign extension done by
1797 hand but only up to 32 bits. This shouldn't really be valid,
1798 but, to permit this code to assemble on a 64-bit host, we
1799 sign extend the 32-bit value to 64 bits if so doing makes the
1802 && (offsetT
) (val
- 0x80000000 - 0x80000000) >= min
1803 && (offsetT
) (val
- 0x80000000 - 0x80000000) <= max
1804 && ((val
- 0x80000000 - 0x80000000) & (right
- 1)) == 0)
1805 val
= val
- 0x80000000 - 0x80000000;
1807 /* Similarly, people write expressions like ~(1<<15), and expect
1808 this to be OK for a 32-bit unsigned value. */
1810 && (offsetT
) (val
+ 0x80000000 + 0x80000000) >= min
1811 && (offsetT
) (val
+ 0x80000000 + 0x80000000) <= max
1812 && ((val
+ 0x80000000 + 0x80000000) & (right
- 1)) == 0)
1813 val
= val
+ 0x80000000 + 0x80000000;
1817 || (val
& (right
- 1)) != 0)
1818 as_bad_value_out_of_range (_("operand"), val
, min
, max
, file
, line
);
1821 if (operand
->insert
)
1826 insn
= (*operand
->insert
) (insn
, (long) val
, cpu
, &errmsg
);
1827 if (errmsg
!= (const char *) NULL
)
1828 as_bad_where (file
, line
, "%s", errmsg
);
1830 else if (operand
->shift
>= 0)
1831 insn
|= ((long) val
& operand
->bitm
) << operand
->shift
;
1833 insn
|= ((long) val
& operand
->bitm
) >> -operand
->shift
;
1840 /* Parse @got, etc. and return the desired relocation. */
1841 static bfd_reloc_code_real_type
1842 ppc_elf_suffix (char **str_p
, expressionS
*exp_p
)
1846 unsigned int length
: 8;
1847 unsigned int valid32
: 1;
1848 unsigned int valid64
: 1;
1857 const struct map_bfd
*ptr
;
1859 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1860 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1861 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1863 static const struct map_bfd mapping
[] = {
1864 MAP ("l", BFD_RELOC_LO16
),
1865 MAP ("h", BFD_RELOC_HI16
),
1866 MAP ("ha", BFD_RELOC_HI16_S
),
1867 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN
),
1868 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN
),
1869 MAP ("got", BFD_RELOC_16_GOTOFF
),
1870 MAP ("got@l", BFD_RELOC_LO16_GOTOFF
),
1871 MAP ("got@h", BFD_RELOC_HI16_GOTOFF
),
1872 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF
),
1873 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF
),
1874 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF
),
1875 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF
),
1876 MAP ("copy", BFD_RELOC_PPC_COPY
),
1877 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT
),
1878 MAP ("sectoff", BFD_RELOC_16_BASEREL
),
1879 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL
),
1880 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL
),
1881 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL
),
1882 MAP ("tls", BFD_RELOC_PPC_TLS
),
1883 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD
),
1884 MAP ("dtprel", BFD_RELOC_PPC_DTPREL
),
1885 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO
),
1886 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI
),
1887 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA
),
1888 MAP ("tprel", BFD_RELOC_PPC_TPREL
),
1889 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO
),
1890 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI
),
1891 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA
),
1892 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16
),
1893 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO
),
1894 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI
),
1895 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA
),
1896 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16
),
1897 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO
),
1898 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI
),
1899 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA
),
1900 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16
),
1901 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO
),
1902 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI
),
1903 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA
),
1904 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16
),
1905 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO
),
1906 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI
),
1907 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA
),
1908 MAP32 ("fixup", BFD_RELOC_CTOR
),
1909 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL
),
1910 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL
),
1911 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC
),
1912 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC
),
1913 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL
),
1914 MAP32 ("sdarel", BFD_RELOC_GPREL16
),
1915 MAP32 ("sdarel@l", BFD_RELOC_PPC_VLE_SDAREL_LO16A
),
1916 MAP32 ("sdarel@h", BFD_RELOC_PPC_VLE_SDAREL_HI16A
),
1917 MAP32 ("sdarel@ha", BFD_RELOC_PPC_VLE_SDAREL_HA16A
),
1918 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32
),
1919 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16
),
1920 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO
),
1921 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI
),
1922 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA
),
1923 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16
),
1924 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL
),
1925 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16
),
1926 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21
),
1927 MAP32 ("sda21@l", BFD_RELOC_PPC_VLE_SDA21_LO
),
1928 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF
),
1929 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16
),
1930 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO
),
1931 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI
),
1932 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA
),
1933 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD
),
1934 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA
),
1935 MAP32 ("xgot", BFD_RELOC_PPC_TOC16
),
1936 MAP64 ("high", BFD_RELOC_PPC64_ADDR16_HIGH
),
1937 MAP64 ("higha", BFD_RELOC_PPC64_ADDR16_HIGHA
),
1938 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER
),
1939 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S
),
1940 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST
),
1941 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S
),
1942 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC
),
1943 MAP64 ("toc", BFD_RELOC_PPC_TOC16
),
1944 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO
),
1945 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI
),
1946 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA
),
1947 MAP64 ("dtprel@high", BFD_RELOC_PPC64_DTPREL16_HIGH
),
1948 MAP64 ("dtprel@higha", BFD_RELOC_PPC64_DTPREL16_HIGHA
),
1949 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER
),
1950 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA
),
1951 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST
),
1952 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA
),
1953 MAP64 ("localentry", BFD_RELOC_PPC64_ADDR64_LOCAL
),
1954 MAP64 ("tprel@high", BFD_RELOC_PPC64_TPREL16_HIGH
),
1955 MAP64 ("tprel@higha", BFD_RELOC_PPC64_TPREL16_HIGHA
),
1956 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER
),
1957 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA
),
1958 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST
),
1959 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA
),
1960 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED
}
1964 return BFD_RELOC_UNUSED
;
1966 for (ch
= *str
, str2
= ident
;
1967 (str2
< ident
+ sizeof (ident
) - 1
1968 && (ISALNUM (ch
) || ch
== '@'));
1971 *str2
++ = TOLOWER (ch
);
1978 for (ptr
= &mapping
[0]; ptr
->length
> 0; ptr
++)
1979 if (ch
== ptr
->string
[0]
1980 && len
== ptr
->length
1981 && memcmp (ident
, ptr
->string
, ptr
->length
) == 0
1982 && (ppc_obj64
? ptr
->valid64
: ptr
->valid32
))
1984 int reloc
= ptr
->reloc
;
1986 if (!ppc_obj64
&& exp_p
->X_add_number
!= 0)
1990 case BFD_RELOC_16_GOTOFF
:
1991 case BFD_RELOC_LO16_GOTOFF
:
1992 case BFD_RELOC_HI16_GOTOFF
:
1993 case BFD_RELOC_HI16_S_GOTOFF
:
1994 as_warn (_("identifier+constant@got means "
1995 "identifier@got+constant"));
1998 case BFD_RELOC_PPC_GOT_TLSGD16
:
1999 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
2000 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
2001 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
2002 case BFD_RELOC_PPC_GOT_TLSLD16
:
2003 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
2004 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
2005 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
2006 case BFD_RELOC_PPC_GOT_DTPREL16
:
2007 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
2008 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
2009 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
2010 case BFD_RELOC_PPC_GOT_TPREL16
:
2011 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
2012 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
2013 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
2014 as_bad (_("symbol+offset not supported for got tls"));
2019 /* Now check for identifier@suffix+constant. */
2020 if (*str
== '-' || *str
== '+')
2022 char *orig_line
= input_line_pointer
;
2023 expressionS new_exp
;
2025 input_line_pointer
= str
;
2026 expression (&new_exp
);
2027 if (new_exp
.X_op
== O_constant
)
2029 exp_p
->X_add_number
+= new_exp
.X_add_number
;
2030 str
= input_line_pointer
;
2033 if (&input_line_pointer
!= str_p
)
2034 input_line_pointer
= orig_line
;
2038 if (reloc
== (int) BFD_RELOC_PPC64_TOC
2039 && exp_p
->X_op
== O_symbol
2040 && strcmp (S_GET_NAME (exp_p
->X_add_symbol
), ".TOC.") == 0)
2042 /* Change the symbol so that the dummy .TOC. symbol can be
2043 omitted from the object file. */
2044 exp_p
->X_add_symbol
= &abs_symbol
;
2047 return (bfd_reloc_code_real_type
) reloc
;
2050 return BFD_RELOC_UNUSED
;
2053 /* Like normal .long/.short/.word, except support @got, etc.
2054 Clobbers input_line_pointer, checks end-of-line. */
2056 ppc_elf_cons (int nbytes
/* 1=.byte, 2=.word, 4=.long, 8=.llong */)
2059 bfd_reloc_code_real_type reloc
;
2061 if (is_it_end_of_statement ())
2063 demand_empty_rest_of_line ();
2070 if (*input_line_pointer
== '@'
2071 && (reloc
= ppc_elf_suffix (&input_line_pointer
,
2072 &exp
)) != BFD_RELOC_UNUSED
)
2074 reloc_howto_type
*reloc_howto
;
2077 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, reloc
);
2078 size
= bfd_get_reloc_size (reloc_howto
);
2082 as_bad (_("%s relocations do not fit in %d bytes\n"),
2083 reloc_howto
->name
, nbytes
);
2090 p
= frag_more (nbytes
);
2091 memset (p
, 0, nbytes
);
2093 if (target_big_endian
)
2094 offset
= nbytes
- size
;
2095 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
+ offset
, size
,
2100 emit_expr (&exp
, (unsigned int) nbytes
);
2102 while (*input_line_pointer
++ == ',');
2104 /* Put terminator back into stream. */
2105 input_line_pointer
--;
2106 demand_empty_rest_of_line ();
2109 /* Solaris pseduo op to change to the .rodata section. */
2111 ppc_elf_rdata (int xxx
)
2113 char *save_line
= input_line_pointer
;
2114 static char section
[] = ".rodata\n";
2116 /* Just pretend this is .section .rodata */
2117 input_line_pointer
= section
;
2118 obj_elf_section (xxx
);
2120 input_line_pointer
= save_line
;
2123 /* Pseudo op to make file scope bss items. */
2125 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED
)
2138 name
= input_line_pointer
;
2139 c
= get_symbol_end ();
2141 /* just after name is now '\0'. */
2142 p
= input_line_pointer
;
2145 if (*input_line_pointer
!= ',')
2147 as_bad (_("expected comma after symbol-name: rest of line ignored."));
2148 ignore_rest_of_line ();
2152 input_line_pointer
++; /* skip ',' */
2153 if ((size
= get_absolute_expression ()) < 0)
2155 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
2156 ignore_rest_of_line ();
2160 /* The third argument to .lcomm is the alignment. */
2161 if (*input_line_pointer
!= ',')
2165 ++input_line_pointer
;
2166 align
= get_absolute_expression ();
2169 as_warn (_("ignoring bad alignment"));
2175 symbolP
= symbol_find_or_make (name
);
2178 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
2180 as_bad (_("ignoring attempt to re-define symbol `%s'."),
2181 S_GET_NAME (symbolP
));
2182 ignore_rest_of_line ();
2186 if (S_GET_VALUE (symbolP
) && S_GET_VALUE (symbolP
) != (valueT
) size
)
2188 as_bad (_("length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
2189 S_GET_NAME (symbolP
),
2190 (long) S_GET_VALUE (symbolP
),
2193 ignore_rest_of_line ();
2199 old_subsec
= now_subseg
;
2202 /* Convert to a power of 2 alignment. */
2203 for (align2
= 0; (align
& 1) == 0; align
>>= 1, ++align2
);
2206 as_bad (_("common alignment not a power of 2"));
2207 ignore_rest_of_line ();
2214 record_alignment (bss_section
, align2
);
2215 subseg_set (bss_section
, 1);
2217 frag_align (align2
, 0, 0);
2218 if (S_GET_SEGMENT (symbolP
) == bss_section
)
2219 symbol_get_frag (symbolP
)->fr_symbol
= 0;
2220 symbol_set_frag (symbolP
, frag_now
);
2221 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
, size
,
2224 S_SET_SIZE (symbolP
, size
);
2225 S_SET_SEGMENT (symbolP
, bss_section
);
2226 subseg_set (old_sec
, old_subsec
);
2227 demand_empty_rest_of_line ();
2230 /* Pseudo op to set symbol local entry point. */
2232 ppc_elf_localentry (int ignore ATTRIBUTE_UNUSED
)
2234 char *name
= input_line_pointer
;
2235 char c
= get_symbol_end ();
2240 elf_symbol_type
*elfsym
;
2242 p
= input_line_pointer
;
2245 if (*input_line_pointer
!= ',')
2248 as_bad (_("expected comma after name `%s' in .localentry directive"),
2251 ignore_rest_of_line ();
2254 input_line_pointer
++;
2256 if (exp
.X_op
== O_absent
)
2258 as_bad (_("missing expression in .localentry directive"));
2259 exp
.X_op
= O_constant
;
2260 exp
.X_add_number
= 0;
2263 sym
= symbol_find_or_make (name
);
2266 if (resolve_expression (&exp
)
2267 && exp
.X_op
== O_constant
)
2269 unsigned char encoded
= PPC64_SET_LOCAL_ENTRY_OFFSET (exp
.X_add_number
);
2271 if (exp
.X_add_number
!= (offsetT
) PPC64_LOCAL_ENTRY_OFFSET (encoded
))
2272 as_bad (_(".localentry expression for `%s' "
2273 "is not a valid power of 2"), S_GET_NAME (sym
));
2276 bfdsym
= symbol_get_bfdsym (sym
);
2277 elfsym
= elf_symbol_from (bfd_asymbol_bfd (bfdsym
), bfdsym
);
2278 gas_assert (elfsym
);
2279 elfsym
->internal_elf_sym
.st_other
&= ~STO_PPC64_LOCAL_MASK
;
2280 elfsym
->internal_elf_sym
.st_other
|= encoded
;
2281 if (ppc_abiversion
== 0)
2286 as_bad (_(".localentry expression for `%s' "
2287 "does not evaluate to a constant"), S_GET_NAME (sym
));
2289 demand_empty_rest_of_line ();
2292 /* Pseudo op to set ABI version. */
2294 ppc_elf_abiversion (int ignore ATTRIBUTE_UNUSED
)
2299 if (exp
.X_op
== O_absent
)
2301 as_bad (_("missing expression in .abiversion directive"));
2302 exp
.X_op
= O_constant
;
2303 exp
.X_add_number
= 0;
2306 if (resolve_expression (&exp
)
2307 && exp
.X_op
== O_constant
)
2308 ppc_abiversion
= exp
.X_add_number
;
2310 as_bad (_(".abiversion expression does not evaluate to a constant"));
2311 demand_empty_rest_of_line ();
2314 /* Set ABI version in output file. */
2318 if (ppc_obj64
&& ppc_abiversion
!= 0)
2320 elf_elfheader (stdoutput
)->e_flags
&= ~EF_PPC64_ABI
;
2321 elf_elfheader (stdoutput
)->e_flags
|= ppc_abiversion
& EF_PPC64_ABI
;
2325 /* Validate any relocations emitted for -mrelocatable, possibly adding
2326 fixups for word relocations in writable segments, so we can adjust
2329 ppc_elf_validate_fix (fixS
*fixp
, segT seg
)
2331 if (fixp
->fx_done
|| fixp
->fx_pcrel
)
2340 case SHLIB_MRELOCATABLE
:
2341 if (fixp
->fx_r_type
<= BFD_RELOC_UNUSED
2342 && fixp
->fx_r_type
!= BFD_RELOC_16_GOTOFF
2343 && fixp
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
2344 && fixp
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
2345 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
2346 && fixp
->fx_r_type
!= BFD_RELOC_16_BASEREL
2347 && fixp
->fx_r_type
!= BFD_RELOC_LO16_BASEREL
2348 && fixp
->fx_r_type
!= BFD_RELOC_HI16_BASEREL
2349 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_BASEREL
2350 && (seg
->flags
& SEC_LOAD
) != 0
2351 && strcmp (segment_name (seg
), ".got2") != 0
2352 && strcmp (segment_name (seg
), ".dtors") != 0
2353 && strcmp (segment_name (seg
), ".ctors") != 0
2354 && strcmp (segment_name (seg
), ".fixup") != 0
2355 && strcmp (segment_name (seg
), ".gcc_except_table") != 0
2356 && strcmp (segment_name (seg
), ".eh_frame") != 0
2357 && strcmp (segment_name (seg
), ".ex_shared") != 0)
2359 if ((seg
->flags
& (SEC_READONLY
| SEC_CODE
)) != 0
2360 || fixp
->fx_r_type
!= BFD_RELOC_CTOR
)
2362 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
2363 _("relocation cannot be done when using -mrelocatable"));
2370 /* Prevent elf_frob_file_before_adjust removing a weak undefined
2371 function descriptor sym if the corresponding code sym is used. */
2374 ppc_frob_file_before_adjust (void)
2382 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
2389 name
= S_GET_NAME (symp
);
2393 if (! S_IS_WEAK (symp
)
2394 || S_IS_DEFINED (symp
))
2397 len
= strlen (name
) + 1;
2398 dotname
= xmalloc (len
+ 1);
2400 memcpy (dotname
+ 1, name
, len
);
2401 dotsym
= symbol_find_noref (dotname
, 1);
2403 if (dotsym
!= NULL
&& (symbol_used_p (dotsym
)
2404 || symbol_used_in_reloc_p (dotsym
)))
2405 symbol_mark_used (symp
);
2409 toc
= bfd_get_section_by_name (stdoutput
, ".toc");
2411 && toc_reloc_types
!= has_large_toc_reloc
2412 && bfd_section_size (stdoutput
, toc
) > 0x10000)
2413 as_warn (_("TOC section size exceeds 64k"));
2416 /* .TOC. used in an opd entry as .TOC.@tocbase doesn't need to be
2417 emitted. Other uses of .TOC. will cause the symbol to be marked
2418 with BSF_KEEP in md_apply_fix. */
2421 ppc_elf_adjust_symtab (void)
2426 symp
= symbol_find (".TOC.");
2429 asymbol
*bsym
= symbol_get_bfdsym (symp
);
2430 if ((bsym
->flags
& BSF_KEEP
) == 0)
2431 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
2435 #endif /* OBJ_ELF */
2440 * Summary of parse_toc_entry.
2442 * in: Input_line_pointer points to the '[' in one of:
2444 * [toc] [tocv] [toc32] [toc64]
2446 * Anything else is an error of one kind or another.
2449 * return value: success or failure
2450 * toc_kind: kind of toc reference
2451 * input_line_pointer:
2452 * success: first char after the ']'
2453 * failure: unchanged
2457 * [toc] - rv == success, toc_kind = default_toc
2458 * [tocv] - rv == success, toc_kind = data_in_toc
2459 * [toc32] - rv == success, toc_kind = must_be_32
2460 * [toc64] - rv == success, toc_kind = must_be_64
2464 enum toc_size_qualifier
2466 default_toc
, /* The toc cell constructed should be the system default size */
2467 data_in_toc
, /* This is a direct reference to a toc cell */
2468 must_be_32
, /* The toc cell constructed must be 32 bits wide */
2469 must_be_64
/* The toc cell constructed must be 64 bits wide */
2473 parse_toc_entry (enum toc_size_qualifier
*toc_kind
)
2478 enum toc_size_qualifier t
;
2480 /* Save the input_line_pointer. */
2481 start
= input_line_pointer
;
2483 /* Skip over the '[' , and whitespace. */
2484 ++input_line_pointer
;
2487 /* Find the spelling of the operand. */
2488 toc_spec
= input_line_pointer
;
2489 c
= get_symbol_end ();
2491 if (strcmp (toc_spec
, "toc") == 0)
2495 else if (strcmp (toc_spec
, "tocv") == 0)
2499 else if (strcmp (toc_spec
, "toc32") == 0)
2503 else if (strcmp (toc_spec
, "toc64") == 0)
2509 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec
);
2510 *input_line_pointer
= c
;
2511 input_line_pointer
= start
;
2515 /* Now find the ']'. */
2516 *input_line_pointer
= c
;
2518 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2519 c
= *input_line_pointer
++; /* input_line_pointer->past char in c. */
2523 as_bad (_("syntax error: expected `]', found `%c'"), c
);
2524 input_line_pointer
= start
;
2534 /* See whether a symbol is in the TOC section. */
2537 ppc_is_toc_sym (symbolS
*sym
)
2539 return (symbol_get_tc (sym
)->symbol_class
== XMC_TC
2540 || symbol_get_tc (sym
)->symbol_class
== XMC_TC0
);
2546 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2548 ppc_apuinfo_section_add (unsigned int apu
, unsigned int version
)
2552 /* Check we don't already exist. */
2553 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
2554 if (ppc_apuinfo_list
[i
] == APUID (apu
, version
))
2557 if (ppc_apuinfo_num
== ppc_apuinfo_num_alloc
)
2559 if (ppc_apuinfo_num_alloc
== 0)
2561 ppc_apuinfo_num_alloc
= 4;
2562 ppc_apuinfo_list
= (unsigned long *)
2563 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2567 ppc_apuinfo_num_alloc
+= 4;
2568 ppc_apuinfo_list
= (unsigned long *) xrealloc (ppc_apuinfo_list
,
2569 sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2572 ppc_apuinfo_list
[ppc_apuinfo_num
++] = APUID (apu
, version
);
2578 /* We need to keep a list of fixups. We can't simply generate them as
2579 we go, because that would require us to first create the frag, and
2580 that would screw up references to ``.''. */
2586 bfd_reloc_code_real_type reloc
;
2589 #define MAX_INSN_FIXUPS (5)
2592 #define E_OR2I_INSN 0x7000C000
2593 #define E_AND2I_DOT_INSN 0x7000C800
2594 #define E_OR2IS_INSN 0x7000D000
2595 #define E_LIS_INSN 0x7000E000
2596 #define E_AND2IS_DOT_INSN 0x7000E800
2599 #define E_ADD2I_DOT_INSN 0x70008800
2600 #define E_ADD2IS_INSN 0x70009000
2601 #define E_CMP16I_INSN 0x70009800
2602 #define E_MULL2I_INSN 0x7000A000
2603 #define E_CMPL16I_INSN 0x7000A800
2604 #define E_CMPH16I_INSN 0x7000B000
2605 #define E_CMPHL16I_INSN 0x7000B800
2607 /* This routine is called for each instruction to be assembled. */
2610 md_assemble (char *str
)
2613 const struct powerpc_opcode
*opcode
;
2615 const unsigned char *opindex_ptr
;
2619 struct ppc_fixup fixups
[MAX_INSN_FIXUPS
];
2624 unsigned int insn_length
;
2626 /* Get the opcode. */
2627 for (s
= str
; *s
!= '\0' && ! ISSPACE (*s
); s
++)
2632 /* Look up the opcode in the hash table. */
2633 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, str
);
2634 if (opcode
== (const struct powerpc_opcode
*) NULL
)
2636 const struct powerpc_macro
*macro
;
2638 macro
= (const struct powerpc_macro
*) hash_find (ppc_macro_hash
, str
);
2639 if (macro
== (const struct powerpc_macro
*) NULL
)
2640 as_bad (_("unrecognized opcode: `%s'"), str
);
2642 ppc_macro (s
, macro
);
2647 insn
= opcode
->opcode
;
2650 while (ISSPACE (*str
))
2653 /* PowerPC operands are just expressions. The only real issue is
2654 that a few operand types are optional. All cases which might use
2655 an optional operand separate the operands only with commas (in some
2656 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2657 have optional operands). Most instructions with optional operands
2658 have only one. Those that have more than one optional operand can
2659 take either all their operands or none. So, before we start seriously
2660 parsing the operands, we check to see if we have optional operands,
2661 and if we do, we count the number of commas to see which operands
2662 have been omitted. */
2664 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2666 const struct powerpc_operand
*operand
;
2668 operand
= &powerpc_operands
[*opindex_ptr
];
2669 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0)
2671 unsigned int opcount
;
2672 unsigned int num_operands_expected
;
2674 /* There is an optional operand. Count the number of
2675 commas in the input line. */
2682 while ((s
= strchr (s
, ',')) != (char *) NULL
)
2689 /* Compute the number of expected operands.
2690 Do not count fake operands. */
2691 for (num_operands_expected
= 0, i
= 0; opcode
->operands
[i
]; i
++)
2692 if ((powerpc_operands
[opcode
->operands
[i
]].flags
& PPC_OPERAND_FAKE
) == 0)
2693 ++ num_operands_expected
;
2695 /* If there are fewer operands in the line then are called
2696 for by the instruction, we want to skip the optional
2698 if (opcount
< num_operands_expected
)
2705 /* Gather the operands. */
2709 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2711 const struct powerpc_operand
*operand
;
2717 if (next_opindex
== 0)
2718 operand
= &powerpc_operands
[*opindex_ptr
];
2721 operand
= &powerpc_operands
[next_opindex
];
2726 /* If this is a fake operand, then we do not expect anything
2728 if ((operand
->flags
& PPC_OPERAND_FAKE
) != 0)
2730 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2731 if (errmsg
!= (const char *) NULL
)
2732 as_bad ("%s", errmsg
);
2736 /* If this is an optional operand, and we are skipping it, just
2738 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0
2741 if (operand
->insert
)
2743 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2744 if (errmsg
!= (const char *) NULL
)
2745 as_bad ("%s", errmsg
);
2747 if ((operand
->flags
& PPC_OPERAND_NEXT
) != 0)
2748 next_opindex
= *opindex_ptr
+ 1;
2752 /* Gather the operand. */
2753 hold
= input_line_pointer
;
2754 input_line_pointer
= str
;
2757 if (*input_line_pointer
== '[')
2759 /* We are expecting something like the second argument here:
2761 * lwz r4,[toc].GS.0.static_int(rtoc)
2762 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2763 * The argument following the `]' must be a symbol name, and the
2764 * register must be the toc register: 'rtoc' or '2'
2766 * The effect is to 0 as the displacement field
2767 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2768 * the appropriate variation) reloc against it based on the symbol.
2769 * The linker will build the toc, and insert the resolved toc offset.
2772 * o The size of the toc entry is currently assumed to be
2773 * 32 bits. This should not be assumed to be a hard coded
2775 * o In an effort to cope with a change from 32 to 64 bits,
2776 * there are also toc entries that are specified to be
2777 * either 32 or 64 bits:
2778 * lwz r4,[toc32].GS.0.static_int(rtoc)
2779 * lwz r4,[toc64].GS.0.static_int(rtoc)
2780 * These demand toc entries of the specified size, and the
2781 * instruction probably requires it.
2785 enum toc_size_qualifier toc_kind
;
2786 bfd_reloc_code_real_type toc_reloc
;
2788 /* Go parse off the [tocXX] part. */
2789 valid_toc
= parse_toc_entry (&toc_kind
);
2793 ignore_rest_of_line ();
2797 /* Now get the symbol following the ']'. */
2803 /* In this case, we may not have seen the symbol yet,
2804 since it is allowed to appear on a .extern or .globl
2805 or just be a label in the .data section. */
2806 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2809 /* 1. The symbol must be defined and either in the toc
2810 section, or a global.
2811 2. The reloc generated must have the TOCDEFN flag set
2812 in upper bit mess of the reloc type.
2813 FIXME: It's a little confusing what the tocv
2814 qualifier can be used for. At the very least, I've
2815 seen three uses, only one of which I'm sure I can
2817 if (ex
.X_op
== O_symbol
)
2819 gas_assert (ex
.X_add_symbol
!= NULL
);
2820 if (symbol_get_bfdsym (ex
.X_add_symbol
)->section
2823 as_bad (_("[tocv] symbol is not a toc symbol"));
2827 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2830 /* FIXME: these next two specifically specify 32/64 bit
2831 toc entries. We don't support them today. Is this
2832 the right way to say that? */
2833 toc_reloc
= BFD_RELOC_UNUSED
;
2834 as_bad (_("unimplemented toc32 expression modifier"));
2837 /* FIXME: see above. */
2838 toc_reloc
= BFD_RELOC_UNUSED
;
2839 as_bad (_("unimplemented toc64 expression modifier"));
2843 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2849 /* We need to generate a fixup for this expression. */
2850 if (fc
>= MAX_INSN_FIXUPS
)
2851 as_fatal (_("too many fixups"));
2853 fixups
[fc
].reloc
= toc_reloc
;
2854 fixups
[fc
].exp
= ex
;
2855 fixups
[fc
].opindex
= *opindex_ptr
;
2858 /* Ok. We've set up the fixup for the instruction. Now make it
2859 look like the constant 0 was found here. */
2861 ex
.X_op
= O_constant
;
2862 ex
.X_add_number
= 0;
2863 ex
.X_add_symbol
= NULL
;
2864 ex
.X_op_symbol
= NULL
;
2871 && (((operand
->flags
& PPC_OPERAND_CR_BIT
) != 0)
2872 || ((operand
->flags
& PPC_OPERAND_CR_REG
) != 0)))
2873 || !register_name (&ex
))
2875 char save_lex
= lex_type
['%'];
2877 if (((operand
->flags
& PPC_OPERAND_CR_REG
) != 0)
2878 || (operand
->flags
& PPC_OPERAND_CR_BIT
) != 0)
2881 lex_type
['%'] |= LEX_BEGIN_NAME
;
2885 lex_type
['%'] = save_lex
;
2889 str
= input_line_pointer
;
2890 input_line_pointer
= hold
;
2892 if (ex
.X_op
== O_illegal
)
2893 as_bad (_("illegal operand"));
2894 else if (ex
.X_op
== O_absent
)
2895 as_bad (_("missing operand"));
2896 else if (ex
.X_op
== O_register
)
2898 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2899 ppc_cpu
, (char *) NULL
, 0);
2901 else if (ex
.X_op
== O_constant
)
2904 /* Allow @HA, @L, @H on constants. */
2905 bfd_reloc_code_real_type reloc
;
2906 char *orig_str
= str
;
2908 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2915 case BFD_RELOC_LO16
:
2916 ex
.X_add_number
&= 0xffff;
2917 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2918 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2921 case BFD_RELOC_HI16
:
2922 if (REPORT_OVERFLOW_HI
&& ppc_obj64
)
2924 /* PowerPC64 @h is tested for overflow. */
2925 ex
.X_add_number
= (addressT
) ex
.X_add_number
>> 16;
2926 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2928 addressT sign
= (((addressT
) -1 >> 16) + 1) >> 1;
2930 = ((addressT
) ex
.X_add_number
^ sign
) - sign
;
2936 case BFD_RELOC_PPC64_ADDR16_HIGH
:
2937 ex
.X_add_number
= PPC_HI (ex
.X_add_number
);
2938 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2939 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2942 case BFD_RELOC_HI16_S
:
2943 if (REPORT_OVERFLOW_HI
&& ppc_obj64
)
2945 /* PowerPC64 @ha is tested for overflow. */
2947 = ((addressT
) ex
.X_add_number
+ 0x8000) >> 16;
2948 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2950 addressT sign
= (((addressT
) -1 >> 16) + 1) >> 1;
2952 = ((addressT
) ex
.X_add_number
^ sign
) - sign
;
2958 case BFD_RELOC_PPC64_ADDR16_HIGHA
:
2959 ex
.X_add_number
= PPC_HA (ex
.X_add_number
);
2960 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2961 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2964 case BFD_RELOC_PPC64_HIGHER
:
2965 ex
.X_add_number
= PPC_HIGHER (ex
.X_add_number
);
2966 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2967 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2970 case BFD_RELOC_PPC64_HIGHER_S
:
2971 ex
.X_add_number
= PPC_HIGHERA (ex
.X_add_number
);
2972 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2973 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2976 case BFD_RELOC_PPC64_HIGHEST
:
2977 ex
.X_add_number
= PPC_HIGHEST (ex
.X_add_number
);
2978 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2979 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2982 case BFD_RELOC_PPC64_HIGHEST_S
:
2983 ex
.X_add_number
= PPC_HIGHESTA (ex
.X_add_number
);
2984 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2985 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2988 #endif /* OBJ_ELF */
2989 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2990 ppc_cpu
, (char *) NULL
, 0);
2994 bfd_reloc_code_real_type reloc
= BFD_RELOC_UNUSED
;
2996 if (ex
.X_op
== O_symbol
&& str
[0] == '(')
2998 const char *sym_name
= S_GET_NAME (ex
.X_add_symbol
);
2999 if (sym_name
[0] == '.')
3002 if (strcasecmp (sym_name
, "__tls_get_addr") == 0)
3004 expressionS tls_exp
;
3006 hold
= input_line_pointer
;
3007 input_line_pointer
= str
+ 1;
3008 expression (&tls_exp
);
3009 if (tls_exp
.X_op
== O_symbol
)
3011 reloc
= BFD_RELOC_UNUSED
;
3012 if (strncasecmp (input_line_pointer
, "@tlsgd)", 7) == 0)
3014 reloc
= BFD_RELOC_PPC_TLSGD
;
3015 input_line_pointer
+= 7;
3017 else if (strncasecmp (input_line_pointer
, "@tlsld)", 7) == 0)
3019 reloc
= BFD_RELOC_PPC_TLSLD
;
3020 input_line_pointer
+= 7;
3022 if (reloc
!= BFD_RELOC_UNUSED
)
3025 str
= input_line_pointer
;
3027 if (fc
>= MAX_INSN_FIXUPS
)
3028 as_fatal (_("too many fixups"));
3029 fixups
[fc
].exp
= tls_exp
;
3030 fixups
[fc
].opindex
= *opindex_ptr
;
3031 fixups
[fc
].reloc
= reloc
;
3035 input_line_pointer
= hold
;
3039 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
3041 /* Some TLS tweaks. */
3047 case BFD_RELOC_PPC_TLS
:
3048 if (!_bfd_elf_ppc_at_tls_transform (opcode
->opcode
, 0))
3049 as_bad (_("@tls may not be used with \"%s\" operands"),
3051 else if (operand
->shift
!= 11)
3052 as_bad (_("@tls may only be used in last operand"));
3054 insn
= ppc_insert_operand (insn
, operand
,
3056 ppc_cpu
, (char *) NULL
, 0);
3059 /* We'll only use the 32 (or 64) bit form of these relocations
3060 in constants. Instructions get the 16 bit form. */
3061 case BFD_RELOC_PPC_DTPREL
:
3062 reloc
= BFD_RELOC_PPC_DTPREL16
;
3064 case BFD_RELOC_PPC_TPREL
:
3065 reloc
= BFD_RELOC_PPC_TPREL16
;
3069 /* If VLE-mode convert LO/HI/HA relocations. */
3070 if (opcode
->flags
& PPC_OPCODE_VLE
)
3072 int tmp_insn
= insn
& opcode
->mask
;
3074 int use_d_reloc
= (tmp_insn
== E_OR2I_INSN
3075 || tmp_insn
== E_AND2I_DOT_INSN
3076 || tmp_insn
== E_OR2IS_INSN
3077 || tmp_insn
== E_LIS_INSN
3078 || tmp_insn
== E_AND2IS_DOT_INSN
);
3081 int use_a_reloc
= (tmp_insn
== E_ADD2I_DOT_INSN
3082 || tmp_insn
== E_ADD2IS_INSN
3083 || tmp_insn
== E_CMP16I_INSN
3084 || tmp_insn
== E_MULL2I_INSN
3085 || tmp_insn
== E_CMPL16I_INSN
3086 || tmp_insn
== E_CMPH16I_INSN
3087 || tmp_insn
== E_CMPHL16I_INSN
);
3094 case BFD_RELOC_PPC_EMB_SDA21
:
3095 reloc
= BFD_RELOC_PPC_VLE_SDA21
;
3098 case BFD_RELOC_LO16
:
3100 reloc
= BFD_RELOC_PPC_VLE_LO16D
;
3101 else if (use_a_reloc
)
3102 reloc
= BFD_RELOC_PPC_VLE_LO16A
;
3105 case BFD_RELOC_HI16
:
3107 reloc
= BFD_RELOC_PPC_VLE_HI16D
;
3108 else if (use_a_reloc
)
3109 reloc
= BFD_RELOC_PPC_VLE_HI16A
;
3112 case BFD_RELOC_HI16_S
:
3114 reloc
= BFD_RELOC_PPC_VLE_HA16D
;
3115 else if (use_a_reloc
)
3116 reloc
= BFD_RELOC_PPC_VLE_HA16A
;
3119 case BFD_RELOC_PPC_VLE_SDAREL_LO16A
:
3121 reloc
= BFD_RELOC_PPC_VLE_SDAREL_LO16D
;
3124 case BFD_RELOC_PPC_VLE_SDAREL_HI16A
:
3126 reloc
= BFD_RELOC_PPC_VLE_SDAREL_HI16D
;
3129 case BFD_RELOC_PPC_VLE_SDAREL_HA16A
:
3131 reloc
= BFD_RELOC_PPC_VLE_SDAREL_HA16D
;
3136 #endif /* OBJ_ELF */
3138 if (reloc
!= BFD_RELOC_UNUSED
)
3140 /* Determine a BFD reloc value based on the operand information.
3141 We are only prepared to turn a few of the operands into
3143 else if ((operand
->flags
& (PPC_OPERAND_RELATIVE
3144 | PPC_OPERAND_ABSOLUTE
)) != 0
3145 && operand
->bitm
== 0x3fffffc
3146 && operand
->shift
== 0)
3147 reloc
= BFD_RELOC_PPC_B26
;
3148 else if ((operand
->flags
& (PPC_OPERAND_RELATIVE
3149 | PPC_OPERAND_ABSOLUTE
)) != 0
3150 && operand
->bitm
== 0xfffc
3151 && operand
->shift
== 0)
3152 reloc
= BFD_RELOC_PPC_B16
;
3153 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
3154 && operand
->bitm
== 0x1fe
3155 && operand
->shift
== -1)
3156 reloc
= BFD_RELOC_PPC_VLE_REL8
;
3157 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
3158 && operand
->bitm
== 0xfffe
3159 && operand
->shift
== 0)
3160 reloc
= BFD_RELOC_PPC_VLE_REL15
;
3161 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
3162 && operand
->bitm
== 0x1fffffe
3163 && operand
->shift
== 0)
3164 reloc
= BFD_RELOC_PPC_VLE_REL24
;
3165 else if ((operand
->flags
& PPC_OPERAND_NEGATIVE
) == 0
3166 && (operand
->bitm
& 0xfff0) == 0xfff0
3167 && operand
->shift
== 0)
3169 reloc
= BFD_RELOC_16
;
3171 /* Note: the symbol may be not yet defined. */
3172 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
3173 && ppc_is_toc_sym (ex
.X_add_symbol
))
3174 reloc
= BFD_RELOC_PPC_TOC16
;
3178 /* For the absolute forms of branches, convert the PC
3179 relative form back into the absolute. */
3180 if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0)
3184 case BFD_RELOC_PPC_B26
:
3185 reloc
= BFD_RELOC_PPC_BA26
;
3187 case BFD_RELOC_PPC_B16
:
3188 reloc
= BFD_RELOC_PPC_BA16
;
3191 case BFD_RELOC_PPC_B16_BRTAKEN
:
3192 reloc
= BFD_RELOC_PPC_BA16_BRTAKEN
;
3194 case BFD_RELOC_PPC_B16_BRNTAKEN
:
3195 reloc
= BFD_RELOC_PPC_BA16_BRNTAKEN
;
3206 case BFD_RELOC_PPC_TOC16
:
3207 toc_reloc_types
|= has_small_toc_reloc
;
3209 case BFD_RELOC_PPC64_TOC16_LO
:
3210 case BFD_RELOC_PPC64_TOC16_HI
:
3211 case BFD_RELOC_PPC64_TOC16_HA
:
3212 toc_reloc_types
|= has_large_toc_reloc
;
3219 && (operand
->flags
& (PPC_OPERAND_DS
| PPC_OPERAND_DQ
)) != 0)
3224 reloc
= BFD_RELOC_PPC64_ADDR16_DS
;
3226 case BFD_RELOC_LO16
:
3227 reloc
= BFD_RELOC_PPC64_ADDR16_LO_DS
;
3229 case BFD_RELOC_16_GOTOFF
:
3230 reloc
= BFD_RELOC_PPC64_GOT16_DS
;
3232 case BFD_RELOC_LO16_GOTOFF
:
3233 reloc
= BFD_RELOC_PPC64_GOT16_LO_DS
;
3235 case BFD_RELOC_LO16_PLTOFF
:
3236 reloc
= BFD_RELOC_PPC64_PLT16_LO_DS
;
3238 case BFD_RELOC_16_BASEREL
:
3239 reloc
= BFD_RELOC_PPC64_SECTOFF_DS
;
3241 case BFD_RELOC_LO16_BASEREL
:
3242 reloc
= BFD_RELOC_PPC64_SECTOFF_LO_DS
;
3244 case BFD_RELOC_PPC_TOC16
:
3245 reloc
= BFD_RELOC_PPC64_TOC16_DS
;
3247 case BFD_RELOC_PPC64_TOC16_LO
:
3248 reloc
= BFD_RELOC_PPC64_TOC16_LO_DS
;
3250 case BFD_RELOC_PPC64_PLTGOT16
:
3251 reloc
= BFD_RELOC_PPC64_PLTGOT16_DS
;
3253 case BFD_RELOC_PPC64_PLTGOT16_LO
:
3254 reloc
= BFD_RELOC_PPC64_PLTGOT16_LO_DS
;
3256 case BFD_RELOC_PPC_DTPREL16
:
3257 reloc
= BFD_RELOC_PPC64_DTPREL16_DS
;
3259 case BFD_RELOC_PPC_DTPREL16_LO
:
3260 reloc
= BFD_RELOC_PPC64_DTPREL16_LO_DS
;
3262 case BFD_RELOC_PPC_TPREL16
:
3263 reloc
= BFD_RELOC_PPC64_TPREL16_DS
;
3265 case BFD_RELOC_PPC_TPREL16_LO
:
3266 reloc
= BFD_RELOC_PPC64_TPREL16_LO_DS
;
3268 case BFD_RELOC_PPC_GOT_DTPREL16
:
3269 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
3270 case BFD_RELOC_PPC_GOT_TPREL16
:
3271 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
3274 as_bad (_("unsupported relocation for DS offset field"));
3280 /* We need to generate a fixup for this expression. */
3281 if (fc
>= MAX_INSN_FIXUPS
)
3282 as_fatal (_("too many fixups"));
3283 fixups
[fc
].exp
= ex
;
3284 fixups
[fc
].opindex
= *opindex_ptr
;
3285 fixups
[fc
].reloc
= reloc
;
3293 /* If expecting more operands, then we want to see "),". */
3294 if (*str
== endc
&& opindex_ptr
[1] != 0)
3298 while (ISSPACE (*str
));
3302 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0)
3310 /* The call to expression should have advanced str past any
3313 && (endc
!= ',' || *str
!= '\0'))
3316 as_bad (_("syntax error; end of line, expected `%c'"), endc
);
3318 as_bad (_("syntax error; found `%c', expected `%c'"), *str
, endc
);
3326 while (ISSPACE (*str
))
3330 as_bad (_("junk at end of line: `%s'"), str
);
3333 /* Do we need/want an APUinfo section? */
3334 if ((ppc_cpu
& (PPC_OPCODE_E500
| PPC_OPCODE_E500MC
| PPC_OPCODE_VLE
)) != 0
3337 /* These are all version "1". */
3338 if (opcode
->flags
& PPC_OPCODE_SPE
)
3339 ppc_apuinfo_section_add (PPC_APUINFO_SPE
, 1);
3340 if (opcode
->flags
& PPC_OPCODE_ISEL
)
3341 ppc_apuinfo_section_add (PPC_APUINFO_ISEL
, 1);
3342 if (opcode
->flags
& PPC_OPCODE_EFS
)
3343 ppc_apuinfo_section_add (PPC_APUINFO_EFS
, 1);
3344 if (opcode
->flags
& PPC_OPCODE_BRLOCK
)
3345 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK
, 1);
3346 if (opcode
->flags
& PPC_OPCODE_PMR
)
3347 ppc_apuinfo_section_add (PPC_APUINFO_PMR
, 1);
3348 if (opcode
->flags
& PPC_OPCODE_CACHELCK
)
3349 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK
, 1);
3350 if (opcode
->flags
& PPC_OPCODE_RFMCI
)
3351 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI
, 1);
3352 if (opcode
->flags
& PPC_OPCODE_VLE
)
3353 ppc_apuinfo_section_add (PPC_APUINFO_VLE
, 1);
3357 /* Write out the instruction. */
3358 /* Differentiate between two and four byte insns. */
3359 if (ppc_mach () == bfd_mach_ppc_vle
)
3361 if (PPC_OP_SE_VLE (insn
))
3365 addr_mod
= frag_now_fix () & 1;
3370 addr_mod
= frag_now_fix () & 3;
3372 /* All instructions can start on a 2 byte boundary for VLE. */
3373 f
= frag_more (insn_length
);
3374 if (frag_now
->has_code
&& frag_now
->insn_addr
!= addr_mod
)
3376 if (ppc_mach() == bfd_mach_ppc_vle
)
3377 as_bad (_("instruction address is not a multiple of 2"));
3379 as_bad (_("instruction address is not a multiple of 4"));
3381 frag_now
->insn_addr
= addr_mod
;
3382 frag_now
->has_code
= 1;
3383 md_number_to_chars (f
, insn
, insn_length
);
3386 dwarf2_emit_insn (insn_length
);
3389 /* Create any fixups. */
3390 for (i
= 0; i
< fc
; i
++)
3393 if (fixups
[i
].reloc
!= BFD_RELOC_UNUSED
)
3395 reloc_howto_type
*reloc_howto
;
3399 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
3403 size
= bfd_get_reloc_size (reloc_howto
);
3404 offset
= target_big_endian
? (insn_length
- size
) : 0;
3406 if (size
< 1 || size
> 4)
3409 fixP
= fix_new_exp (frag_now
,
3410 f
- frag_now
->fr_literal
+ offset
,
3413 reloc_howto
->pc_relative
,
3418 const struct powerpc_operand
*operand
;
3420 operand
= &powerpc_operands
[fixups
[i
].opindex
];
3421 fixP
= fix_new_exp (frag_now
,
3422 f
- frag_now
->fr_literal
,
3425 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
3428 fixP
->fx_pcrel_adjust
= fixups
[i
].opindex
;
3432 /* Handle a macro. Gather all the operands, transform them as
3433 described by the macro, and call md_assemble recursively. All the
3434 operands are separated by commas; we don't accept parentheses
3435 around operands here. */
3438 ppc_macro (char *str
, const struct powerpc_macro
*macro
)
3449 /* Gather the users operands into the operands array. */
3454 if (count
>= sizeof operands
/ sizeof operands
[0])
3456 operands
[count
++] = s
;
3457 s
= strchr (s
, ',');
3458 if (s
== (char *) NULL
)
3463 if (count
!= macro
->operands
)
3465 as_bad (_("wrong number of operands"));
3469 /* Work out how large the string must be (the size is unbounded
3470 because it includes user input). */
3472 format
= macro
->format
;
3473 while (*format
!= '\0')
3482 arg
= strtol (format
+ 1, &send
, 10);
3483 know (send
!= format
&& arg
< count
);
3484 len
+= strlen (operands
[arg
]);
3489 /* Put the string together. */
3490 complete
= s
= (char *) alloca (len
+ 1);
3491 format
= macro
->format
;
3492 while (*format
!= '\0')
3498 arg
= strtol (format
+ 1, &send
, 10);
3499 strcpy (s
, operands
[arg
]);
3506 /* Assemble the constructed instruction. */
3507 md_assemble (complete
);
3511 /* For ELF, add support for SHT_ORDERED. */
3514 ppc_section_type (char *str
, size_t len
)
3516 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
3523 ppc_section_flags (flagword flags
, bfd_vma attr ATTRIBUTE_UNUSED
, int type
)
3525 if (type
== SHT_ORDERED
)
3526 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
3530 #endif /* OBJ_ELF */
3533 /* Pseudo-op handling. */
3535 /* The .byte pseudo-op. This is similar to the normal .byte
3536 pseudo-op, but it can also take a single ASCII string. */
3539 ppc_byte (int ignore ATTRIBUTE_UNUSED
)
3541 if (*input_line_pointer
!= '\"')
3547 /* Gather characters. A real double quote is doubled. Unusual
3548 characters are not permitted. */
3549 ++input_line_pointer
;
3554 c
= *input_line_pointer
++;
3558 if (*input_line_pointer
!= '\"')
3560 ++input_line_pointer
;
3563 FRAG_APPEND_1_CHAR (c
);
3566 demand_empty_rest_of_line ();
3571 /* XCOFF specific pseudo-op handling. */
3573 /* This is set if we are creating a .stabx symbol, since we don't want
3574 to handle symbol suffixes for such symbols. */
3575 static bfd_boolean ppc_stab_symbol
;
3577 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
3578 symbols in the .bss segment as though they were local common
3579 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3580 aligns .comm and .lcomm to 4 bytes. */
3583 ppc_comm (int lcomm
)
3585 asection
*current_seg
= now_seg
;
3586 subsegT current_subseg
= now_subseg
;
3592 symbolS
*lcomm_sym
= NULL
;
3596 name
= input_line_pointer
;
3597 endc
= get_symbol_end ();
3598 end_name
= input_line_pointer
;
3601 if (*input_line_pointer
!= ',')
3603 as_bad (_("missing size"));
3604 ignore_rest_of_line ();
3607 ++input_line_pointer
;
3609 size
= get_absolute_expression ();
3612 as_bad (_("negative size"));
3613 ignore_rest_of_line ();
3619 /* The third argument to .comm is the alignment. */
3620 if (*input_line_pointer
!= ',')
3624 ++input_line_pointer
;
3625 align
= get_absolute_expression ();
3628 as_warn (_("ignoring bad alignment"));
3638 /* The third argument to .lcomm appears to be the real local
3639 common symbol to create. References to the symbol named in
3640 the first argument are turned into references to the third
3642 if (*input_line_pointer
!= ',')
3644 as_bad (_("missing real symbol name"));
3645 ignore_rest_of_line ();
3648 ++input_line_pointer
;
3650 lcomm_name
= input_line_pointer
;
3651 lcomm_endc
= get_symbol_end ();
3653 lcomm_sym
= symbol_find_or_make (lcomm_name
);
3655 *input_line_pointer
= lcomm_endc
;
3657 /* The fourth argument to .lcomm is the alignment. */
3658 if (*input_line_pointer
!= ',')
3667 ++input_line_pointer
;
3668 align
= get_absolute_expression ();
3671 as_warn (_("ignoring bad alignment"));
3678 sym
= symbol_find_or_make (name
);
3681 if (S_IS_DEFINED (sym
)
3682 || S_GET_VALUE (sym
) != 0)
3684 as_bad (_("attempt to redefine symbol"));
3685 ignore_rest_of_line ();
3689 record_alignment (bss_section
, align
);
3692 || ! S_IS_DEFINED (lcomm_sym
))
3701 S_SET_EXTERNAL (sym
);
3705 symbol_get_tc (lcomm_sym
)->output
= 1;
3706 def_sym
= lcomm_sym
;
3710 subseg_set (bss_section
, 1);
3711 frag_align (align
, 0, 0);
3713 symbol_set_frag (def_sym
, frag_now
);
3714 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
3715 def_size
, (char *) NULL
);
3717 S_SET_SEGMENT (def_sym
, bss_section
);
3718 symbol_get_tc (def_sym
)->align
= align
;
3722 /* Align the size of lcomm_sym. */
3723 symbol_get_frag (lcomm_sym
)->fr_offset
=
3724 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
3725 &~ ((1 << align
) - 1));
3726 if (align
> symbol_get_tc (lcomm_sym
)->align
)
3727 symbol_get_tc (lcomm_sym
)->align
= align
;
3732 /* Make sym an offset from lcomm_sym. */
3733 S_SET_SEGMENT (sym
, bss_section
);
3734 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
3735 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
3736 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
3739 subseg_set (current_seg
, current_subseg
);
3741 demand_empty_rest_of_line ();
3744 /* The .csect pseudo-op. This switches us into a different
3745 subsegment. The first argument is a symbol whose value is the
3746 start of the .csect. In COFF, csect symbols get special aux
3747 entries defined by the x_csect field of union internal_auxent. The
3748 optional second argument is the alignment (the default is 2). */
3751 ppc_csect (int ignore ATTRIBUTE_UNUSED
)
3758 name
= input_line_pointer
;
3759 endc
= get_symbol_end ();
3761 sym
= symbol_find_or_make (name
);
3763 *input_line_pointer
= endc
;
3765 if (S_GET_NAME (sym
)[0] == '\0')
3767 /* An unnamed csect is assumed to be [PR]. */
3768 symbol_get_tc (sym
)->symbol_class
= XMC_PR
;
3772 if (*input_line_pointer
== ',')
3774 ++input_line_pointer
;
3775 align
= get_absolute_expression ();
3778 ppc_change_csect (sym
, align
);
3780 demand_empty_rest_of_line ();
3783 /* Change to a different csect. */
3786 ppc_change_csect (symbolS
*sym
, offsetT align
)
3788 if (S_IS_DEFINED (sym
))
3789 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
3799 /* This is a new csect. We need to look at the symbol class to
3800 figure out whether it should go in the text section or the
3804 switch (symbol_get_tc (sym
)->symbol_class
)
3814 S_SET_SEGMENT (sym
, text_section
);
3815 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
3816 ++ppc_text_subsegment
;
3817 list_ptr
= &ppc_text_csects
;
3827 if (ppc_toc_csect
!= NULL
3828 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
3829 == ppc_data_subsegment
))
3831 S_SET_SEGMENT (sym
, data_section
);
3832 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
3833 ++ppc_data_subsegment
;
3834 list_ptr
= &ppc_data_csects
;
3840 /* We set the obstack chunk size to a small value before
3841 changing subsegments, so that we don't use a lot of memory
3842 space for what may be a small section. */
3843 hold_chunksize
= chunksize
;
3846 sec
= subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3847 symbol_get_tc (sym
)->subseg
);
3849 chunksize
= hold_chunksize
;
3852 ppc_after_toc_frag
= frag_now
;
3854 record_alignment (sec
, align
);
3856 frag_align_code (align
, 0);
3858 frag_align (align
, 0, 0);
3860 symbol_set_frag (sym
, frag_now
);
3861 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3863 symbol_get_tc (sym
)->align
= align
;
3864 symbol_get_tc (sym
)->output
= 1;
3865 symbol_get_tc (sym
)->within
= sym
;
3867 for (list
= *list_ptr
;
3868 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3869 list
= symbol_get_tc (list
)->next
)
3871 symbol_get_tc (list
)->next
= sym
;
3873 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3874 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3878 ppc_current_csect
= sym
;
3882 ppc_change_debug_section (unsigned int idx
, subsegT subseg
)
3886 const struct xcoff_dwsect_name
*dw
= &xcoff_dwsect_names
[idx
];
3888 sec
= subseg_new (dw
->name
, subseg
);
3889 oldflags
= bfd_get_section_flags (stdoutput
, sec
);
3890 if (oldflags
== SEC_NO_FLAGS
)
3892 /* Just created section. */
3893 gas_assert (dw_sections
[idx
].sect
== NULL
);
3895 bfd_set_section_flags (stdoutput
, sec
, SEC_DEBUGGING
);
3896 bfd_set_section_alignment (stdoutput
, sec
, 0);
3897 dw_sections
[idx
].sect
= sec
;
3900 /* Not anymore in a csect. */
3901 ppc_current_csect
= NULL
;
3904 /* The .dwsect pseudo-op. Defines a DWARF section. Syntax is:
3905 .dwsect flag [, opt-label ]
3909 ppc_dwsect (int ignore ATTRIBUTE_UNUSED
)
3913 const struct xcoff_dwsect_name
*dw
;
3914 struct dw_subsection
*subseg
;
3915 struct dw_section
*dws
;
3919 flag
= get_absolute_expression ();
3921 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
3922 if (xcoff_dwsect_names
[i
].flag
== flag
)
3924 dw
= &xcoff_dwsect_names
[i
];
3928 /* Parse opt-label. */
3929 if (*input_line_pointer
== ',')
3934 ++input_line_pointer
;
3936 label
= input_line_pointer
;
3937 c
= get_symbol_end ();
3938 opt_label
= symbol_find_or_make (label
);
3939 *input_line_pointer
= c
;
3944 demand_empty_rest_of_line ();
3946 /* Return now in case of unknown subsection. */
3949 as_bad (_("no known dwarf XCOFF section for flag 0x%08x\n"),
3954 /* Find the subsection. */
3955 dws
= &dw_sections
[i
];
3957 if (opt_label
!= NULL
&& S_IS_DEFINED (opt_label
))
3959 /* Sanity check (note that in theory S_GET_SEGMENT mustn't be null). */
3960 if (dws
->sect
== NULL
|| S_GET_SEGMENT (opt_label
) != dws
->sect
)
3962 as_bad (_("label %s was not defined in this dwarf section"),
3963 S_GET_NAME (opt_label
));
3964 subseg
= dws
->anon_subseg
;
3968 subseg
= symbol_get_tc (opt_label
)->u
.dw
;
3973 /* Switch to the subsection. */
3974 ppc_change_debug_section (i
, subseg
->subseg
);
3978 /* Create a new dw subsection. */
3979 subseg
= (struct dw_subsection
*)
3980 xmalloc (sizeof (struct dw_subsection
));
3982 if (opt_label
== NULL
)
3984 /* The anonymous one. */
3986 subseg
->link
= NULL
;
3987 dws
->anon_subseg
= subseg
;
3992 if (dws
->list_subseg
!= NULL
)
3993 subseg
->subseg
= dws
->list_subseg
->subseg
+ 1;
3997 subseg
->link
= dws
->list_subseg
;
3998 dws
->list_subseg
= subseg
;
3999 symbol_get_tc (opt_label
)->u
.dw
= subseg
;
4002 ppc_change_debug_section (i
, subseg
->subseg
);
4006 /* Add the length field. */
4007 expressionS
*exp
= &subseg
->end_exp
;
4010 if (opt_label
!= NULL
)
4011 symbol_set_value_now (opt_label
);
4013 /* Add the length field. Note that according to the AIX assembler
4014 manual, the size of the length field is 4 for powerpc32 but
4015 12 for powerpc64. */
4018 /* Write the 64bit marker. */
4019 md_number_to_chars (frag_more (4), -1, 4);
4022 exp
->X_op
= O_subtract
;
4023 exp
->X_op_symbol
= symbol_temp_new_now ();
4024 exp
->X_add_symbol
= symbol_temp_make ();
4026 sz
= ppc_obj64
? 8 : 4;
4027 exp
->X_add_number
= -sz
;
4028 emit_expr (exp
, sz
);
4033 /* This function handles the .text and .data pseudo-ops. These
4034 pseudo-ops aren't really used by XCOFF; we implement them for the
4035 convenience of people who aren't used to XCOFF. */
4038 ppc_section (int type
)
4045 else if (type
== 'd')
4050 sym
= symbol_find_or_make (name
);
4052 ppc_change_csect (sym
, 2);
4054 demand_empty_rest_of_line ();
4057 /* This function handles the .section pseudo-op. This is mostly to
4058 give an error, since XCOFF only supports .text, .data and .bss, but
4059 we do permit the user to name the text or data section. */
4062 ppc_named_section (int ignore ATTRIBUTE_UNUSED
)
4065 const char *real_name
;
4069 user_name
= input_line_pointer
;
4070 c
= get_symbol_end ();
4072 if (strcmp (user_name
, ".text") == 0)
4073 real_name
= ".text[PR]";
4074 else if (strcmp (user_name
, ".data") == 0)
4075 real_name
= ".data[RW]";
4078 as_bad (_("the XCOFF file format does not support arbitrary sections"));
4079 *input_line_pointer
= c
;
4080 ignore_rest_of_line ();
4084 *input_line_pointer
= c
;
4086 sym
= symbol_find_or_make (real_name
);
4088 ppc_change_csect (sym
, 2);
4090 demand_empty_rest_of_line ();
4093 /* The .extern pseudo-op. We create an undefined symbol. */
4096 ppc_extern (int ignore ATTRIBUTE_UNUSED
)
4101 name
= input_line_pointer
;
4102 endc
= get_symbol_end ();
4104 (void) symbol_find_or_make (name
);
4106 *input_line_pointer
= endc
;
4108 demand_empty_rest_of_line ();
4111 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
4114 ppc_lglobl (int ignore ATTRIBUTE_UNUSED
)
4120 name
= input_line_pointer
;
4121 endc
= get_symbol_end ();
4123 sym
= symbol_find_or_make (name
);
4125 *input_line_pointer
= endc
;
4127 symbol_get_tc (sym
)->output
= 1;
4129 demand_empty_rest_of_line ();
4132 /* The .ref pseudo-op. It takes a list of symbol names and inserts R_REF
4133 relocations at the beginning of the current csect.
4135 (In principle, there's no reason why the relocations _have_ to be at
4136 the beginning. Anywhere in the csect would do. However, inserting
4137 at the beginning is what the native assmebler does, and it helps to
4138 deal with cases where the .ref statements follow the section contents.)
4140 ??? .refs don't work for empty .csects. However, the native assembler
4141 doesn't report an error in this case, and neither yet do we. */
4144 ppc_ref (int ignore ATTRIBUTE_UNUSED
)
4149 if (ppc_current_csect
== NULL
)
4151 as_bad (_(".ref outside .csect"));
4152 ignore_rest_of_line ();
4158 name
= input_line_pointer
;
4159 c
= get_symbol_end ();
4161 fix_at_start (symbol_get_frag (ppc_current_csect
), 0,
4162 symbol_find_or_make (name
), 0, FALSE
, BFD_RELOC_NONE
);
4164 *input_line_pointer
= c
;
4166 c
= *input_line_pointer
;
4169 input_line_pointer
++;
4171 if (is_end_of_line
[(unsigned char) *input_line_pointer
])
4173 as_bad (_("missing symbol name"));
4174 ignore_rest_of_line ();
4181 demand_empty_rest_of_line ();
4184 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
4185 although I don't know why it bothers. */
4188 ppc_rename (int ignore ATTRIBUTE_UNUSED
)
4195 name
= input_line_pointer
;
4196 endc
= get_symbol_end ();
4198 sym
= symbol_find_or_make (name
);
4200 *input_line_pointer
= endc
;
4202 if (*input_line_pointer
!= ',')
4204 as_bad (_("missing rename string"));
4205 ignore_rest_of_line ();
4208 ++input_line_pointer
;
4210 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
4212 demand_empty_rest_of_line ();
4215 /* The .stabx pseudo-op. This is similar to a normal .stabs
4216 pseudo-op, but slightly different. A sample is
4217 .stabx "main:F-1",.main,142,0
4218 The first argument is the symbol name to create. The second is the
4219 value, and the third is the storage class. The fourth seems to be
4220 always zero, and I am assuming it is the type. */
4223 ppc_stabx (int ignore ATTRIBUTE_UNUSED
)
4230 name
= demand_copy_C_string (&len
);
4232 if (*input_line_pointer
!= ',')
4234 as_bad (_("missing value"));
4237 ++input_line_pointer
;
4239 ppc_stab_symbol
= TRUE
;
4240 sym
= symbol_make (name
);
4241 ppc_stab_symbol
= FALSE
;
4243 symbol_get_tc (sym
)->real_name
= name
;
4245 (void) expression (&exp
);
4252 as_bad (_("illegal .stabx expression; zero assumed"));
4253 exp
.X_add_number
= 0;
4256 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
4257 symbol_set_frag (sym
, &zero_address_frag
);
4261 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
4262 symbol_set_value_expression (sym
, &exp
);
4266 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
4267 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
4272 /* The value is some complex expression. This will probably
4273 fail at some later point, but this is probably the right
4274 thing to do here. */
4275 symbol_set_value_expression (sym
, &exp
);
4279 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
4280 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4282 if (*input_line_pointer
!= ',')
4284 as_bad (_("missing class"));
4287 ++input_line_pointer
;
4289 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
4291 if (*input_line_pointer
!= ',')
4293 as_bad (_("missing type"));
4296 ++input_line_pointer
;
4298 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
4300 symbol_get_tc (sym
)->output
= 1;
4302 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
4307 .stabx "z",arrays_,133,0
4310 .comm arrays_,13768,3
4312 resolve_symbol_value will copy the exp's "within" into sym's when the
4313 offset is 0. Since this seems to be corner case problem,
4314 only do the correction for storage class C_STSYM. A better solution
4315 would be to have the tc field updated in ppc_symbol_new_hook. */
4317 if (exp
.X_op
== O_symbol
)
4319 if (ppc_current_block
== NULL
)
4320 as_bad (_(".stabx of storage class stsym must be within .bs/.es"));
4322 symbol_get_tc (sym
)->within
= ppc_current_block
;
4323 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
4327 if (exp
.X_op
!= O_symbol
4328 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
4329 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
4330 ppc_frob_label (sym
);
4333 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4334 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
4335 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
4336 symbol_get_tc (ppc_current_csect
)->within
= sym
;
4339 demand_empty_rest_of_line ();
4342 /* The .function pseudo-op. This takes several arguments. The first
4343 argument seems to be the external name of the symbol. The second
4344 argument seems to be the label for the start of the function. gcc
4345 uses the same name for both. I have no idea what the third and
4346 fourth arguments are meant to be. The optional fifth argument is
4347 an expression for the size of the function. In COFF this symbol
4348 gets an aux entry like that used for a csect. */
4351 ppc_function (int ignore ATTRIBUTE_UNUSED
)
4359 name
= input_line_pointer
;
4360 endc
= get_symbol_end ();
4362 /* Ignore any [PR] suffix. */
4363 name
= ppc_canonicalize_symbol_name (name
);
4364 s
= strchr (name
, '[');
4365 if (s
!= (char *) NULL
4366 && strcmp (s
+ 1, "PR]") == 0)
4369 ext_sym
= symbol_find_or_make (name
);
4371 *input_line_pointer
= endc
;
4373 if (*input_line_pointer
!= ',')
4375 as_bad (_("missing symbol name"));
4376 ignore_rest_of_line ();
4379 ++input_line_pointer
;
4381 name
= input_line_pointer
;
4382 endc
= get_symbol_end ();
4384 lab_sym
= symbol_find_or_make (name
);
4386 *input_line_pointer
= endc
;
4388 if (ext_sym
!= lab_sym
)
4392 exp
.X_op
= O_symbol
;
4393 exp
.X_add_symbol
= lab_sym
;
4394 exp
.X_op_symbol
= NULL
;
4395 exp
.X_add_number
= 0;
4397 symbol_set_value_expression (ext_sym
, &exp
);
4400 if (symbol_get_tc (ext_sym
)->symbol_class
== -1)
4401 symbol_get_tc (ext_sym
)->symbol_class
= XMC_PR
;
4402 symbol_get_tc (ext_sym
)->output
= 1;
4404 if (*input_line_pointer
== ',')
4408 /* Ignore the third argument. */
4409 ++input_line_pointer
;
4411 if (*input_line_pointer
== ',')
4413 /* Ignore the fourth argument. */
4414 ++input_line_pointer
;
4416 if (*input_line_pointer
== ',')
4418 /* The fifth argument is the function size. */
4419 ++input_line_pointer
;
4420 symbol_get_tc (ext_sym
)->u
.size
= symbol_new
4421 ("L0\001", absolute_section
,(valueT
) 0, &zero_address_frag
);
4422 pseudo_set (symbol_get_tc (ext_sym
)->u
.size
);
4427 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4428 SF_SET_FUNCTION (ext_sym
);
4429 SF_SET_PROCESS (ext_sym
);
4430 coff_add_linesym (ext_sym
);
4432 demand_empty_rest_of_line ();
4435 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
4436 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
4437 with the correct line number */
4439 static symbolS
*saved_bi_sym
= 0;
4442 ppc_bf (int ignore ATTRIBUTE_UNUSED
)
4446 sym
= symbol_make (".bf");
4447 S_SET_SEGMENT (sym
, text_section
);
4448 symbol_set_frag (sym
, frag_now
);
4449 S_SET_VALUE (sym
, frag_now_fix ());
4450 S_SET_STORAGE_CLASS (sym
, C_FCN
);
4452 coff_line_base
= get_absolute_expression ();
4454 S_SET_NUMBER_AUXILIARY (sym
, 1);
4455 SA_SET_SYM_LNNO (sym
, coff_line_base
);
4457 /* Line number for bi. */
4460 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
4465 symbol_get_tc (sym
)->output
= 1;
4467 ppc_frob_label (sym
);
4469 demand_empty_rest_of_line ();
4472 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
4473 ".ef", except that the line number is absolute, not relative to the
4474 most recent ".bf" symbol. */
4477 ppc_ef (int ignore ATTRIBUTE_UNUSED
)
4481 sym
= symbol_make (".ef");
4482 S_SET_SEGMENT (sym
, text_section
);
4483 symbol_set_frag (sym
, frag_now
);
4484 S_SET_VALUE (sym
, frag_now_fix ());
4485 S_SET_STORAGE_CLASS (sym
, C_FCN
);
4486 S_SET_NUMBER_AUXILIARY (sym
, 1);
4487 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
4488 symbol_get_tc (sym
)->output
= 1;
4490 ppc_frob_label (sym
);
4492 demand_empty_rest_of_line ();
4495 /* The .bi and .ei pseudo-ops. These take a string argument and
4496 generates a C_BINCL or C_EINCL symbol, which goes at the start of
4497 the symbol list. The value of .bi will be know when the next .bf
4503 static symbolS
*last_biei
;
4510 name
= demand_copy_C_string (&len
);
4512 /* The value of these symbols is actually file offset. Here we set
4513 the value to the index into the line number entries. In
4514 ppc_frob_symbols we set the fix_line field, which will cause BFD
4515 to do the right thing. */
4517 sym
= symbol_make (name
);
4518 /* obj-coff.c currently only handles line numbers correctly in the
4520 S_SET_SEGMENT (sym
, text_section
);
4521 S_SET_VALUE (sym
, coff_n_line_nos
);
4522 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4524 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
4525 symbol_get_tc (sym
)->output
= 1;
4533 for (look
= last_biei
? last_biei
: symbol_rootP
;
4534 (look
!= (symbolS
*) NULL
4535 && (S_GET_STORAGE_CLASS (look
) == C_FILE
4536 || S_GET_STORAGE_CLASS (look
) == C_BINCL
4537 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
4538 look
= symbol_next (look
))
4540 if (look
!= (symbolS
*) NULL
)
4542 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4543 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
4547 demand_empty_rest_of_line ();
4550 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
4551 There is one argument, which is a csect symbol. The value of the
4552 .bs symbol is the index of this csect symbol. */
4555 ppc_bs (int ignore ATTRIBUTE_UNUSED
)
4562 if (ppc_current_block
!= NULL
)
4563 as_bad (_("nested .bs blocks"));
4565 name
= input_line_pointer
;
4566 endc
= get_symbol_end ();
4568 csect
= symbol_find_or_make (name
);
4570 *input_line_pointer
= endc
;
4572 sym
= symbol_make (".bs");
4573 S_SET_SEGMENT (sym
, now_seg
);
4574 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
4575 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4576 symbol_get_tc (sym
)->output
= 1;
4578 symbol_get_tc (sym
)->within
= csect
;
4580 ppc_frob_label (sym
);
4582 ppc_current_block
= sym
;
4584 demand_empty_rest_of_line ();
4587 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
4590 ppc_es (int ignore ATTRIBUTE_UNUSED
)
4594 if (ppc_current_block
== NULL
)
4595 as_bad (_(".es without preceding .bs"));
4597 sym
= symbol_make (".es");
4598 S_SET_SEGMENT (sym
, now_seg
);
4599 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
4600 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4601 symbol_get_tc (sym
)->output
= 1;
4603 ppc_frob_label (sym
);
4605 ppc_current_block
= NULL
;
4607 demand_empty_rest_of_line ();
4610 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
4614 ppc_bb (int ignore ATTRIBUTE_UNUSED
)
4618 sym
= symbol_make (".bb");
4619 S_SET_SEGMENT (sym
, text_section
);
4620 symbol_set_frag (sym
, frag_now
);
4621 S_SET_VALUE (sym
, frag_now_fix ());
4622 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
4624 S_SET_NUMBER_AUXILIARY (sym
, 1);
4625 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
4627 symbol_get_tc (sym
)->output
= 1;
4629 SF_SET_PROCESS (sym
);
4631 ppc_frob_label (sym
);
4633 demand_empty_rest_of_line ();
4636 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
4640 ppc_eb (int ignore ATTRIBUTE_UNUSED
)
4644 sym
= symbol_make (".eb");
4645 S_SET_SEGMENT (sym
, text_section
);
4646 symbol_set_frag (sym
, frag_now
);
4647 S_SET_VALUE (sym
, frag_now_fix ());
4648 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
4649 S_SET_NUMBER_AUXILIARY (sym
, 1);
4650 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
4651 symbol_get_tc (sym
)->output
= 1;
4653 SF_SET_PROCESS (sym
);
4655 ppc_frob_label (sym
);
4657 demand_empty_rest_of_line ();
4660 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
4664 ppc_bc (int ignore ATTRIBUTE_UNUSED
)
4670 name
= demand_copy_C_string (&len
);
4671 sym
= symbol_make (name
);
4672 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
4673 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4674 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
4675 S_SET_VALUE (sym
, 0);
4676 symbol_get_tc (sym
)->output
= 1;
4678 ppc_frob_label (sym
);
4680 demand_empty_rest_of_line ();
4683 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
4686 ppc_ec (int ignore ATTRIBUTE_UNUSED
)
4690 sym
= symbol_make (".ec");
4691 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
4692 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4693 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
4694 S_SET_VALUE (sym
, 0);
4695 symbol_get_tc (sym
)->output
= 1;
4697 ppc_frob_label (sym
);
4699 demand_empty_rest_of_line ();
4702 /* The .toc pseudo-op. Switch to the .toc subsegment. */
4705 ppc_toc (int ignore ATTRIBUTE_UNUSED
)
4707 if (ppc_toc_csect
!= (symbolS
*) NULL
)
4708 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
4715 subseg
= ppc_data_subsegment
;
4716 ++ppc_data_subsegment
;
4718 subseg_new (segment_name (data_section
), subseg
);
4719 ppc_toc_frag
= frag_now
;
4721 sym
= symbol_find_or_make ("TOC[TC0]");
4722 symbol_set_frag (sym
, frag_now
);
4723 S_SET_SEGMENT (sym
, data_section
);
4724 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
4725 symbol_get_tc (sym
)->subseg
= subseg
;
4726 symbol_get_tc (sym
)->output
= 1;
4727 symbol_get_tc (sym
)->within
= sym
;
4729 ppc_toc_csect
= sym
;
4731 for (list
= ppc_data_csects
;
4732 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
4733 list
= symbol_get_tc (list
)->next
)
4735 symbol_get_tc (list
)->next
= sym
;
4737 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4738 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
4742 ppc_current_csect
= ppc_toc_csect
;
4744 demand_empty_rest_of_line ();
4747 /* The AIX assembler automatically aligns the operands of a .long or
4748 .short pseudo-op, and we want to be compatible. */
4751 ppc_xcoff_cons (int log_size
)
4753 frag_align (log_size
, 0, 0);
4754 record_alignment (now_seg
, log_size
);
4755 cons (1 << log_size
);
4759 ppc_vbyte (int dummy ATTRIBUTE_UNUSED
)
4764 (void) expression (&exp
);
4766 if (exp
.X_op
!= O_constant
)
4768 as_bad (_("non-constant byte count"));
4772 byte_count
= exp
.X_add_number
;
4774 if (*input_line_pointer
!= ',')
4776 as_bad (_("missing value"));
4780 ++input_line_pointer
;
4785 ppc_xcoff_end (void)
4789 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
4791 struct dw_section
*dws
= &dw_sections
[i
];
4792 struct dw_subsection
*dwss
;
4794 if (dws
->anon_subseg
)
4796 dwss
= dws
->anon_subseg
;
4797 dwss
->link
= dws
->list_subseg
;
4800 dwss
= dws
->list_subseg
;
4802 for (; dwss
!= NULL
; dwss
= dwss
->link
)
4803 if (dwss
->end_exp
.X_add_symbol
!= NULL
)
4805 subseg_set (dws
->sect
, dwss
->subseg
);
4806 symbol_set_value_now (dwss
->end_exp
.X_add_symbol
);
4811 #endif /* OBJ_XCOFF */
4812 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
4814 /* The .tc pseudo-op. This is used when generating either XCOFF or
4815 ELF. This takes two or more arguments.
4817 When generating XCOFF output, the first argument is the name to
4818 give to this location in the toc; this will be a symbol with class
4819 TC. The rest of the arguments are N-byte values to actually put at
4820 this location in the TOC; often there is just one more argument, a
4821 relocatable symbol reference. The size of the value to store
4822 depends on target word size. A 32-bit target uses 4-byte values, a
4823 64-bit target uses 8-byte values.
4825 When not generating XCOFF output, the arguments are the same, but
4826 the first argument is simply ignored. */
4829 ppc_tc (int ignore ATTRIBUTE_UNUSED
)
4833 /* Define the TOC symbol name. */
4839 if (ppc_toc_csect
== (symbolS
*) NULL
4840 || ppc_toc_csect
!= ppc_current_csect
)
4842 as_bad (_(".tc not in .toc section"));
4843 ignore_rest_of_line ();
4847 name
= input_line_pointer
;
4848 endc
= get_symbol_end ();
4850 sym
= symbol_find_or_make (name
);
4852 *input_line_pointer
= endc
;
4854 if (S_IS_DEFINED (sym
))
4858 label
= symbol_get_tc (ppc_current_csect
)->within
;
4859 if (symbol_get_tc (label
)->symbol_class
!= XMC_TC0
)
4861 as_bad (_(".tc with no label"));
4862 ignore_rest_of_line ();
4866 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
4867 symbol_set_frag (label
, symbol_get_frag (sym
));
4868 S_SET_VALUE (label
, S_GET_VALUE (sym
));
4870 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
4871 ++input_line_pointer
;
4876 S_SET_SEGMENT (sym
, now_seg
);
4877 symbol_set_frag (sym
, frag_now
);
4878 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
4879 symbol_get_tc (sym
)->symbol_class
= XMC_TC
;
4880 symbol_get_tc (sym
)->output
= 1;
4882 ppc_frob_label (sym
);
4885 #endif /* OBJ_XCOFF */
4889 /* Skip the TOC symbol name. */
4890 while (is_part_of_name (*input_line_pointer
)
4891 || *input_line_pointer
== ' '
4892 || *input_line_pointer
== '['
4893 || *input_line_pointer
== ']'
4894 || *input_line_pointer
== '{'
4895 || *input_line_pointer
== '}')
4896 ++input_line_pointer
;
4898 /* Align to a four/eight byte boundary. */
4899 align
= ppc_obj64
? 3 : 2;
4900 frag_align (align
, 0, 0);
4901 record_alignment (now_seg
, align
);
4902 #endif /* OBJ_ELF */
4904 if (*input_line_pointer
!= ',')
4905 demand_empty_rest_of_line ();
4908 ++input_line_pointer
;
4909 cons (ppc_obj64
? 8 : 4);
4913 /* Pseudo-op .machine. */
4916 ppc_machine (int ignore ATTRIBUTE_UNUSED
)
4919 #define MAX_HISTORY 100
4920 static ppc_cpu_t
*cpu_history
;
4921 static int curr_hist
;
4925 if (*input_line_pointer
== '"')
4928 cpu_string
= demand_copy_C_string (&len
);
4933 cpu_string
= input_line_pointer
;
4934 c
= get_symbol_end ();
4935 cpu_string
= xstrdup (cpu_string
);
4936 *input_line_pointer
= c
;
4939 if (cpu_string
!= NULL
)
4941 ppc_cpu_t old_cpu
= ppc_cpu
;
4945 for (p
= cpu_string
; *p
!= 0; p
++)
4948 if (strcmp (cpu_string
, "push") == 0)
4950 if (cpu_history
== NULL
)
4951 cpu_history
= xmalloc (MAX_HISTORY
* sizeof (*cpu_history
));
4953 if (curr_hist
>= MAX_HISTORY
)
4954 as_bad (_(".machine stack overflow"));
4956 cpu_history
[curr_hist
++] = ppc_cpu
;
4958 else if (strcmp (cpu_string
, "pop") == 0)
4961 as_bad (_(".machine stack underflow"));
4963 ppc_cpu
= cpu_history
[--curr_hist
];
4965 else if ((new_cpu
= ppc_parse_cpu (ppc_cpu
, &sticky
, cpu_string
)) != 0)
4968 as_bad (_("invalid machine `%s'"), cpu_string
);
4970 if (ppc_cpu
!= old_cpu
)
4971 ppc_setup_opcodes ();
4974 demand_empty_rest_of_line ();
4976 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4980 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4982 /* Set the current section. */
4984 ppc_set_current_section (segT
new)
4986 ppc_previous_section
= ppc_current_section
;
4987 ppc_current_section
= new;
4990 /* pseudo-op: .previous
4991 behaviour: toggles the current section with the previous section.
4993 warnings: "No previous section" */
4996 ppc_previous (int ignore ATTRIBUTE_UNUSED
)
4998 if (ppc_previous_section
== NULL
)
5000 as_warn (_("no previous section to return to, ignored."));
5004 subseg_set (ppc_previous_section
, 0);
5006 ppc_set_current_section (ppc_previous_section
);
5009 /* pseudo-op: .pdata
5010 behaviour: predefined read only data section
5014 initial: .section .pdata "adr3"
5015 a - don't know -- maybe a misprint
5016 d - initialized data
5018 3 - double word aligned (that would be 4 byte boundary)
5021 Tag index tables (also known as the function table) for exception
5022 handling, debugging, etc. */
5025 ppc_pdata (int ignore ATTRIBUTE_UNUSED
)
5027 if (pdata_section
== 0)
5029 pdata_section
= subseg_new (".pdata", 0);
5031 bfd_set_section_flags (stdoutput
, pdata_section
,
5032 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5033 | SEC_READONLY
| SEC_DATA
));
5035 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
5039 pdata_section
= subseg_new (".pdata", 0);
5041 ppc_set_current_section (pdata_section
);
5044 /* pseudo-op: .ydata
5045 behaviour: predefined read only data section
5049 initial: .section .ydata "drw3"
5050 a - don't know -- maybe a misprint
5051 d - initialized data
5053 3 - double word aligned (that would be 4 byte boundary)
5055 Tag tables (also known as the scope table) for exception handling,
5059 ppc_ydata (int ignore ATTRIBUTE_UNUSED
)
5061 if (ydata_section
== 0)
5063 ydata_section
= subseg_new (".ydata", 0);
5064 bfd_set_section_flags (stdoutput
, ydata_section
,
5065 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5066 | SEC_READONLY
| SEC_DATA
));
5068 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
5072 ydata_section
= subseg_new (".ydata", 0);
5074 ppc_set_current_section (ydata_section
);
5077 /* pseudo-op: .reldata
5078 behaviour: predefined read write data section
5079 double word aligned (4-byte)
5080 FIXME: relocation is applied to it
5081 FIXME: what's the difference between this and .data?
5084 initial: .section .reldata "drw3"
5085 d - initialized data
5088 3 - double word aligned (that would be 8 byte boundary)
5091 Like .data, but intended to hold data subject to relocation, such as
5092 function descriptors, etc. */
5095 ppc_reldata (int ignore ATTRIBUTE_UNUSED
)
5097 if (reldata_section
== 0)
5099 reldata_section
= subseg_new (".reldata", 0);
5101 bfd_set_section_flags (stdoutput
, reldata_section
,
5102 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5105 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
5109 reldata_section
= subseg_new (".reldata", 0);
5111 ppc_set_current_section (reldata_section
);
5114 /* pseudo-op: .rdata
5115 behaviour: predefined read only data section
5119 initial: .section .rdata "dr3"
5120 d - initialized data
5122 3 - double word aligned (that would be 4 byte boundary) */
5125 ppc_rdata (int ignore ATTRIBUTE_UNUSED
)
5127 if (rdata_section
== 0)
5129 rdata_section
= subseg_new (".rdata", 0);
5130 bfd_set_section_flags (stdoutput
, rdata_section
,
5131 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5132 | SEC_READONLY
| SEC_DATA
));
5134 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
5138 rdata_section
= subseg_new (".rdata", 0);
5140 ppc_set_current_section (rdata_section
);
5143 /* pseudo-op: .ualong
5144 behaviour: much like .int, with the exception that no alignment is
5146 FIXME: test the alignment statement
5151 ppc_ualong (int ignore ATTRIBUTE_UNUSED
)
5157 /* pseudo-op: .znop <symbol name>
5158 behaviour: Issue a nop instruction
5159 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
5160 the supplied symbol name.
5162 warnings: Missing symbol name */
5165 ppc_znop (int ignore ATTRIBUTE_UNUSED
)
5168 const struct powerpc_opcode
*opcode
;
5175 /* Strip out the symbol name. */
5176 symbol_name
= input_line_pointer
;
5177 c
= get_symbol_end ();
5179 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
5180 strcpy (name
, symbol_name
);
5182 sym
= symbol_find_or_make (name
);
5184 *input_line_pointer
= c
;
5188 /* Look up the opcode in the hash table. */
5189 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
5191 /* Stick in the nop. */
5192 insn
= opcode
->opcode
;
5194 /* Write out the instruction. */
5196 md_number_to_chars (f
, insn
, 4);
5198 f
- frag_now
->fr_literal
,
5203 BFD_RELOC_16_GOT_PCREL
);
5213 ppc_pe_comm (int lcomm
)
5222 name
= input_line_pointer
;
5223 c
= get_symbol_end ();
5225 /* just after name is now '\0'. */
5226 p
= input_line_pointer
;
5229 if (*input_line_pointer
!= ',')
5231 as_bad (_("expected comma after symbol-name: rest of line ignored."));
5232 ignore_rest_of_line ();
5236 input_line_pointer
++; /* skip ',' */
5237 if ((temp
= get_absolute_expression ()) < 0)
5239 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
5240 ignore_rest_of_line ();
5246 /* The third argument to .comm is the alignment. */
5247 if (*input_line_pointer
!= ',')
5251 ++input_line_pointer
;
5252 align
= get_absolute_expression ();
5255 as_warn (_("ignoring bad alignment"));
5262 symbolP
= symbol_find_or_make (name
);
5265 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
5267 as_bad (_("ignoring attempt to re-define symbol `%s'."),
5268 S_GET_NAME (symbolP
));
5269 ignore_rest_of_line ();
5273 if (S_GET_VALUE (symbolP
))
5275 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
5276 as_bad (_("length of .comm \"%s\" is already %ld. Not changed to %ld."),
5277 S_GET_NAME (symbolP
),
5278 (long) S_GET_VALUE (symbolP
),
5283 S_SET_VALUE (symbolP
, (valueT
) temp
);
5284 S_SET_EXTERNAL (symbolP
);
5285 S_SET_SEGMENT (symbolP
, bfd_com_section_ptr
);
5288 demand_empty_rest_of_line ();
5292 * implement the .section pseudo op:
5293 * .section name {, "flags"}
5295 * | +--- optional flags: 'b' for bss
5297 * +-- section name 'l' for lib
5301 * 'd' (apparently m88k for data)
5303 * But if the argument is not a quoted string, treat it as a
5304 * subsegment number.
5306 * FIXME: this is a copy of the section processing from obj-coff.c, with
5307 * additions/changes for the moto-pas assembler support. There are three
5310 * FIXME: I just noticed this. This doesn't work at all really. It it
5311 * setting bits that bfd probably neither understands or uses. The
5312 * correct approach (?) will have to incorporate extra fields attached
5313 * to the section to hold the system specific stuff. (krk)
5316 * 'a' - unknown - referred to in documentation, but no definition supplied
5317 * 'c' - section has code
5318 * 'd' - section has initialized data
5319 * 'u' - section has uninitialized data
5320 * 'i' - section contains directives (info)
5321 * 'n' - section can be discarded
5322 * 'R' - remove section at link time
5324 * Section Protection:
5325 * 'r' - section is readable
5326 * 'w' - section is writeable
5327 * 'x' - section is executable
5328 * 's' - section is sharable
5330 * Section Alignment:
5331 * '0' - align to byte boundary
5332 * '1' - align to halfword undary
5333 * '2' - align to word boundary
5334 * '3' - align to doubleword boundary
5335 * '4' - align to quadword boundary
5336 * '5' - align to 32 byte boundary
5337 * '6' - align to 64 byte boundary
5342 ppc_pe_section (int ignore ATTRIBUTE_UNUSED
)
5344 /* Strip out the section name. */
5353 section_name
= input_line_pointer
;
5354 c
= get_symbol_end ();
5356 name
= xmalloc (input_line_pointer
- section_name
+ 1);
5357 strcpy (name
, section_name
);
5359 *input_line_pointer
= c
;
5364 flags
= SEC_NO_FLAGS
;
5366 if (strcmp (name
, ".idata$2") == 0)
5370 else if (strcmp (name
, ".idata$3") == 0)
5374 else if (strcmp (name
, ".idata$4") == 0)
5378 else if (strcmp (name
, ".idata$5") == 0)
5382 else if (strcmp (name
, ".idata$6") == 0)
5387 /* Default alignment to 16 byte boundary. */
5390 if (*input_line_pointer
== ',')
5392 ++input_line_pointer
;
5394 if (*input_line_pointer
!= '"')
5395 exp
= get_absolute_expression ();
5398 ++input_line_pointer
;
5399 while (*input_line_pointer
!= '"'
5400 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
5402 switch (*input_line_pointer
)
5404 /* Section Contents */
5405 case 'a': /* unknown */
5406 as_bad (_("unsupported section attribute -- 'a'"));
5408 case 'c': /* code section */
5411 case 'd': /* section has initialized data */
5414 case 'u': /* section has uninitialized data */
5415 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
5419 case 'i': /* section contains directives (info) */
5420 /* FIXME: This is IMAGE_SCN_LNK_INFO
5422 flags
|= SEC_HAS_CONTENTS
;
5424 case 'n': /* section can be discarded */
5427 case 'R': /* Remove section at link time */
5428 flags
|= SEC_NEVER_LOAD
;
5430 #if IFLICT_BRAIN_DAMAGE
5431 /* Section Protection */
5432 case 'r': /* section is readable */
5433 flags
|= IMAGE_SCN_MEM_READ
;
5435 case 'w': /* section is writeable */
5436 flags
|= IMAGE_SCN_MEM_WRITE
;
5438 case 'x': /* section is executable */
5439 flags
|= IMAGE_SCN_MEM_EXECUTE
;
5441 case 's': /* section is sharable */
5442 flags
|= IMAGE_SCN_MEM_SHARED
;
5445 /* Section Alignment */
5446 case '0': /* align to byte boundary */
5447 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
5450 case '1': /* align to halfword boundary */
5451 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
5454 case '2': /* align to word boundary */
5455 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
5458 case '3': /* align to doubleword boundary */
5459 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
5462 case '4': /* align to quadword boundary */
5463 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
5466 case '5': /* align to 32 byte boundary */
5467 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
5470 case '6': /* align to 64 byte boundary */
5471 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
5476 as_bad (_("unknown section attribute '%c'"),
5477 *input_line_pointer
);
5480 ++input_line_pointer
;
5482 if (*input_line_pointer
== '"')
5483 ++input_line_pointer
;
5487 sec
= subseg_new (name
, (subsegT
) exp
);
5489 ppc_set_current_section (sec
);
5491 if (flags
!= SEC_NO_FLAGS
)
5493 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
5494 as_bad (_("error setting flags for \"%s\": %s"),
5495 bfd_section_name (stdoutput
, sec
),
5496 bfd_errmsg (bfd_get_error ()));
5499 bfd_set_section_alignment (stdoutput
, sec
, align
);
5503 ppc_pe_function (int ignore ATTRIBUTE_UNUSED
)
5509 name
= input_line_pointer
;
5510 endc
= get_symbol_end ();
5512 ext_sym
= symbol_find_or_make (name
);
5514 *input_line_pointer
= endc
;
5516 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
5517 SF_SET_FUNCTION (ext_sym
);
5518 SF_SET_PROCESS (ext_sym
);
5519 coff_add_linesym (ext_sym
);
5521 demand_empty_rest_of_line ();
5525 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED
)
5527 if (tocdata_section
== 0)
5529 tocdata_section
= subseg_new (".tocd", 0);
5530 /* FIXME: section flags won't work. */
5531 bfd_set_section_flags (stdoutput
, tocdata_section
,
5532 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5533 | SEC_READONLY
| SEC_DATA
));
5535 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
5539 rdata_section
= subseg_new (".tocd", 0);
5542 ppc_set_current_section (tocdata_section
);
5544 demand_empty_rest_of_line ();
5547 /* Don't adjust TOC relocs to use the section symbol. */
5550 ppc_pe_fix_adjustable (fixS
*fix
)
5552 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
5559 /* XCOFF specific symbol and file handling. */
5561 /* Canonicalize the symbol name. We use the to force the suffix, if
5562 any, to use square brackets, and to be in upper case. */
5565 ppc_canonicalize_symbol_name (char *name
)
5569 if (ppc_stab_symbol
)
5572 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
5586 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
5589 if (*s
== '\0' || s
[1] != '\0')
5590 as_bad (_("bad symbol suffix"));
5598 /* Set the class of a symbol based on the suffix, if any. This is
5599 called whenever a new symbol is created. */
5602 ppc_symbol_new_hook (symbolS
*sym
)
5604 struct ppc_tc_sy
*tc
;
5607 tc
= symbol_get_tc (sym
);
5610 tc
->symbol_class
= -1;
5611 tc
->real_name
= NULL
;
5618 if (ppc_stab_symbol
)
5621 s
= strchr (S_GET_NAME (sym
), '[');
5622 if (s
== (const char *) NULL
)
5624 /* There is no suffix. */
5633 if (strcmp (s
, "BS]") == 0)
5634 tc
->symbol_class
= XMC_BS
;
5637 if (strcmp (s
, "DB]") == 0)
5638 tc
->symbol_class
= XMC_DB
;
5639 else if (strcmp (s
, "DS]") == 0)
5640 tc
->symbol_class
= XMC_DS
;
5643 if (strcmp (s
, "GL]") == 0)
5644 tc
->symbol_class
= XMC_GL
;
5647 if (strcmp (s
, "PR]") == 0)
5648 tc
->symbol_class
= XMC_PR
;
5651 if (strcmp (s
, "RO]") == 0)
5652 tc
->symbol_class
= XMC_RO
;
5653 else if (strcmp (s
, "RW]") == 0)
5654 tc
->symbol_class
= XMC_RW
;
5657 if (strcmp (s
, "SV]") == 0)
5658 tc
->symbol_class
= XMC_SV
;
5661 if (strcmp (s
, "TC]") == 0)
5662 tc
->symbol_class
= XMC_TC
;
5663 else if (strcmp (s
, "TI]") == 0)
5664 tc
->symbol_class
= XMC_TI
;
5665 else if (strcmp (s
, "TB]") == 0)
5666 tc
->symbol_class
= XMC_TB
;
5667 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
5668 tc
->symbol_class
= XMC_TC0
;
5671 if (strcmp (s
, "UA]") == 0)
5672 tc
->symbol_class
= XMC_UA
;
5673 else if (strcmp (s
, "UC]") == 0)
5674 tc
->symbol_class
= XMC_UC
;
5677 if (strcmp (s
, "XO]") == 0)
5678 tc
->symbol_class
= XMC_XO
;
5682 if (tc
->symbol_class
== -1)
5683 as_bad (_("unrecognized symbol suffix"));
5686 /* Set the class of a label based on where it is defined. This
5687 handles symbols without suffixes. Also, move the symbol so that it
5688 follows the csect symbol. */
5691 ppc_frob_label (symbolS
*sym
)
5693 if (ppc_current_csect
!= (symbolS
*) NULL
)
5695 if (symbol_get_tc (sym
)->symbol_class
== -1)
5696 symbol_get_tc (sym
)->symbol_class
= symbol_get_tc (ppc_current_csect
)->symbol_class
;
5698 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
5699 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
5700 &symbol_rootP
, &symbol_lastP
);
5701 symbol_get_tc (ppc_current_csect
)->within
= sym
;
5702 symbol_get_tc (sym
)->within
= ppc_current_csect
;
5706 dwarf2_emit_label (sym
);
5710 /* This variable is set by ppc_frob_symbol if any absolute symbols are
5711 seen. It tells ppc_adjust_symtab whether it needs to look through
5714 static bfd_boolean ppc_saw_abs
;
5716 /* Change the name of a symbol just before writing it out. Set the
5717 real name if the .rename pseudo-op was used. Otherwise, remove any
5718 class suffix. Return 1 if the symbol should not be included in the
5722 ppc_frob_symbol (symbolS
*sym
)
5724 static symbolS
*ppc_last_function
;
5725 static symbolS
*set_end
;
5727 /* Discard symbols that should not be included in the output symbol
5729 if (! symbol_used_in_reloc_p (sym
)
5730 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
5731 || (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
5732 && ! symbol_get_tc (sym
)->output
5733 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
5736 /* This one will disappear anyway. Don't make a csect sym for it. */
5737 if (sym
== abs_section_sym
)
5740 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
5741 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
5747 name
= S_GET_NAME (sym
);
5748 s
= strchr (name
, '[');
5749 if (s
!= (char *) NULL
)
5755 snew
= xmalloc (len
+ 1);
5756 memcpy (snew
, name
, len
);
5759 S_SET_NAME (sym
, snew
);
5763 if (set_end
!= (symbolS
*) NULL
)
5765 SA_SET_SYM_ENDNDX (set_end
, sym
);
5769 if (SF_GET_FUNCTION (sym
))
5771 if (ppc_last_function
!= (symbolS
*) NULL
)
5772 as_bad (_("two .function pseudo-ops with no intervening .ef"));
5773 ppc_last_function
= sym
;
5774 if (symbol_get_tc (sym
)->u
.size
!= (symbolS
*) NULL
)
5776 resolve_symbol_value (symbol_get_tc (sym
)->u
.size
);
5777 SA_SET_SYM_FSIZE (sym
,
5778 (long) S_GET_VALUE (symbol_get_tc (sym
)->u
.size
));
5781 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
5782 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
5784 if (ppc_last_function
== (symbolS
*) NULL
)
5785 as_bad (_(".ef with no preceding .function"));
5788 set_end
= ppc_last_function
;
5789 ppc_last_function
= NULL
;
5791 /* We don't have a C_EFCN symbol, but we need to force the
5792 COFF backend to believe that it has seen one. */
5793 coff_last_function
= NULL
;
5797 if (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
5798 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
5799 && S_GET_STORAGE_CLASS (sym
) != C_FILE
5800 && S_GET_STORAGE_CLASS (sym
) != C_FCN
5801 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
5802 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
5803 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
5804 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
5805 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
5806 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
5807 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
5809 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
5810 || S_GET_STORAGE_CLASS (sym
) == C_AIX_WEAKEXT
5811 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
5814 union internal_auxent
*a
;
5816 /* Create a csect aux. */
5817 i
= S_GET_NUMBER_AUXILIARY (sym
);
5818 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
5819 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
5820 if (symbol_get_tc (sym
)->symbol_class
== XMC_TC0
)
5822 /* This is the TOC table. */
5823 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
5824 a
->x_csect
.x_scnlen
.l
= 0;
5825 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5827 else if (symbol_get_tc (sym
)->subseg
!= 0)
5829 /* This is a csect symbol. x_scnlen is the size of the
5831 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
5832 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5833 S_GET_SEGMENT (sym
))
5834 - S_GET_VALUE (sym
));
5837 resolve_symbol_value (symbol_get_tc (sym
)->next
);
5838 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
5839 - S_GET_VALUE (sym
));
5841 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
5843 else if (S_GET_SEGMENT (sym
) == bss_section
)
5845 /* This is a common symbol. */
5846 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
5847 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
5848 if (S_IS_EXTERNAL (sym
))
5849 symbol_get_tc (sym
)->symbol_class
= XMC_RW
;
5851 symbol_get_tc (sym
)->symbol_class
= XMC_BS
;
5853 else if (S_GET_SEGMENT (sym
) == absolute_section
)
5855 /* This is an absolute symbol. The csect will be created by
5856 ppc_adjust_symtab. */
5858 a
->x_csect
.x_smtyp
= XTY_LD
;
5859 if (symbol_get_tc (sym
)->symbol_class
== -1)
5860 symbol_get_tc (sym
)->symbol_class
= XMC_XO
;
5862 else if (! S_IS_DEFINED (sym
))
5864 /* This is an external symbol. */
5865 a
->x_csect
.x_scnlen
.l
= 0;
5866 a
->x_csect
.x_smtyp
= XTY_ER
;
5868 else if (symbol_get_tc (sym
)->symbol_class
== XMC_TC
)
5872 /* This is a TOC definition. x_scnlen is the size of the
5874 next
= symbol_next (sym
);
5875 while (symbol_get_tc (next
)->symbol_class
== XMC_TC0
)
5876 next
= symbol_next (next
);
5877 if (next
== (symbolS
*) NULL
5878 || symbol_get_tc (next
)->symbol_class
!= XMC_TC
)
5880 if (ppc_after_toc_frag
== (fragS
*) NULL
)
5881 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5883 - S_GET_VALUE (sym
));
5885 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
5886 - S_GET_VALUE (sym
));
5890 resolve_symbol_value (next
);
5891 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
5892 - S_GET_VALUE (sym
));
5894 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5900 /* This is a normal symbol definition. x_scnlen is the
5901 symbol index of the containing csect. */
5902 if (S_GET_SEGMENT (sym
) == text_section
)
5903 csect
= ppc_text_csects
;
5904 else if (S_GET_SEGMENT (sym
) == data_section
)
5905 csect
= ppc_data_csects
;
5909 /* Skip the initial dummy symbol. */
5910 csect
= symbol_get_tc (csect
)->next
;
5912 if (csect
== (symbolS
*) NULL
)
5914 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
5915 a
->x_csect
.x_scnlen
.l
= 0;
5919 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
5921 resolve_symbol_value (symbol_get_tc (csect
)->next
);
5922 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
5923 > S_GET_VALUE (sym
))
5925 csect
= symbol_get_tc (csect
)->next
;
5928 a
->x_csect
.x_scnlen
.p
=
5929 coffsymbol (symbol_get_bfdsym (csect
))->native
;
5930 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
5933 a
->x_csect
.x_smtyp
= XTY_LD
;
5936 a
->x_csect
.x_parmhash
= 0;
5937 a
->x_csect
.x_snhash
= 0;
5938 if (symbol_get_tc (sym
)->symbol_class
== -1)
5939 a
->x_csect
.x_smclas
= XMC_PR
;
5941 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->symbol_class
;
5942 a
->x_csect
.x_stab
= 0;
5943 a
->x_csect
.x_snstab
= 0;
5945 /* Don't let the COFF backend resort these symbols. */
5946 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
5948 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
5950 /* We want the value to be the symbol index of the referenced
5951 csect symbol. BFD will do that for us if we set the right
5953 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
5954 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
5956 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
5957 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
5959 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
5964 block
= symbol_get_tc (sym
)->within
;
5967 /* The value is the offset from the enclosing csect. */
5970 csect
= symbol_get_tc (block
)->within
;
5971 resolve_symbol_value (csect
);
5972 base
= S_GET_VALUE (csect
);
5977 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - base
);
5979 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
5980 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
5982 /* We want the value to be a file offset into the line numbers.
5983 BFD will do that for us if we set the right flags. We have
5984 already set the value correctly. */
5985 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
5991 /* Adjust the symbol table. This creates csect symbols for all
5992 absolute symbols. */
5995 ppc_adjust_symtab (void)
6002 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
6006 union internal_auxent
*a
;
6008 if (S_GET_SEGMENT (sym
) != absolute_section
)
6011 csect
= symbol_create (".abs[XO]", absolute_section
,
6012 S_GET_VALUE (sym
), &zero_address_frag
);
6013 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
6014 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
6015 i
= S_GET_NUMBER_AUXILIARY (csect
);
6016 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
6017 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
6018 a
->x_csect
.x_scnlen
.l
= 0;
6019 a
->x_csect
.x_smtyp
= XTY_SD
;
6020 a
->x_csect
.x_parmhash
= 0;
6021 a
->x_csect
.x_snhash
= 0;
6022 a
->x_csect
.x_smclas
= XMC_XO
;
6023 a
->x_csect
.x_stab
= 0;
6024 a
->x_csect
.x_snstab
= 0;
6026 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
6028 i
= S_GET_NUMBER_AUXILIARY (sym
);
6029 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
6030 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
6031 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
6034 ppc_saw_abs
= FALSE
;
6037 /* Set the VMA for a section. This is called on all the sections in
6041 ppc_frob_section (asection
*sec
)
6043 static bfd_vma vma
= 0;
6045 /* Dwarf sections start at 0. */
6046 if (bfd_get_section_flags (NULL
, sec
) & SEC_DEBUGGING
)
6049 vma
= md_section_align (sec
, vma
);
6050 bfd_set_section_vma (stdoutput
, sec
, vma
);
6051 vma
+= bfd_section_size (stdoutput
, sec
);
6054 #endif /* OBJ_XCOFF */
6057 md_atof (int type
, char *litp
, int *sizep
)
6059 return ieee_md_atof (type
, litp
, sizep
, target_big_endian
);
6062 /* Write a value out to the object file, using the appropriate
6066 md_number_to_chars (char *buf
, valueT val
, int n
)
6068 if (target_big_endian
)
6069 number_to_chars_bigendian (buf
, val
, n
);
6071 number_to_chars_littleendian (buf
, val
, n
);
6074 /* Align a section (I don't know why this is machine dependent). */
6077 md_section_align (asection
*seg ATTRIBUTE_UNUSED
, valueT addr
)
6082 int align
= bfd_get_section_alignment (stdoutput
, seg
);
6084 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
6088 /* We don't have any form of relaxing. */
6091 md_estimate_size_before_relax (fragS
*fragp ATTRIBUTE_UNUSED
,
6092 asection
*seg ATTRIBUTE_UNUSED
)
6098 /* Convert a machine dependent frag. We never generate these. */
6101 md_convert_frag (bfd
*abfd ATTRIBUTE_UNUSED
,
6102 asection
*sec ATTRIBUTE_UNUSED
,
6103 fragS
*fragp ATTRIBUTE_UNUSED
)
6108 /* We have no need to default values of symbols. */
6111 md_undefined_symbol (char *name ATTRIBUTE_UNUSED
)
6116 /* Functions concerning relocs. */
6118 /* The location from which a PC relative jump should be calculated,
6119 given a PC relative reloc. */
6122 md_pcrel_from_section (fixS
*fixp
, segT sec ATTRIBUTE_UNUSED
)
6124 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6129 /* This is called to see whether a fixup should be adjusted to use a
6130 section symbol. We take the opportunity to change a fixup against
6131 a symbol in the TOC subsegment into a reloc against the
6132 corresponding .tc symbol. */
6135 ppc_fix_adjustable (fixS
*fix
)
6137 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
6138 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
6139 TC_SYMFIELD_TYPE
*tc
;
6141 if (symseg
== absolute_section
)
6144 /* Always adjust symbols in debugging sections. */
6145 if (bfd_get_section_flags (stdoutput
, symseg
) & SEC_DEBUGGING
)
6148 if (ppc_toc_csect
!= (symbolS
*) NULL
6149 && fix
->fx_addsy
!= ppc_toc_csect
6150 && symseg
== data_section
6151 && val
>= ppc_toc_frag
->fr_address
6152 && (ppc_after_toc_frag
== (fragS
*) NULL
6153 || val
< ppc_after_toc_frag
->fr_address
))
6157 for (sy
= symbol_next (ppc_toc_csect
);
6158 sy
!= (symbolS
*) NULL
;
6159 sy
= symbol_next (sy
))
6161 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
6163 if (sy_tc
->symbol_class
== XMC_TC0
)
6165 if (sy_tc
->symbol_class
!= XMC_TC
)
6167 if (val
== resolve_symbol_value (sy
))
6170 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
6175 as_bad_where (fix
->fx_file
, fix
->fx_line
,
6176 _("symbol in .toc does not match any .tc"));
6179 /* Possibly adjust the reloc to be against the csect. */
6180 tc
= symbol_get_tc (fix
->fx_addsy
);
6182 && tc
->symbol_class
!= XMC_TC0
6183 && tc
->symbol_class
!= XMC_TC
6184 && symseg
!= bss_section
6185 /* Don't adjust if this is a reloc in the toc section. */
6186 && (symseg
!= data_section
6187 || ppc_toc_csect
== NULL
6188 || val
< ppc_toc_frag
->fr_address
6189 || (ppc_after_toc_frag
!= NULL
6190 && val
>= ppc_after_toc_frag
->fr_address
)))
6192 symbolS
*csect
= tc
->within
;
6194 /* If the symbol was not declared by a label (eg: a section symbol),
6195 use the section instead of the csect. This doesn't happen in
6196 normal AIX assembly code. */
6198 csect
= seg_info (symseg
)->sym
;
6200 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
6201 fix
->fx_addsy
= csect
;
6206 /* Adjust a reloc against a .lcomm symbol to be against the base
6208 if (symseg
== bss_section
6209 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
6211 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
6213 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
6220 /* A reloc from one csect to another must be kept. The assembler
6221 will, of course, keep relocs between sections, and it will keep
6222 absolute relocs, but we need to force it to keep PC relative relocs
6223 between two csects in the same section. */
6226 ppc_force_relocation (fixS
*fix
)
6228 /* At this point fix->fx_addsy should already have been converted to
6229 a csect symbol. If the csect does not include the fragment, then
6230 we need to force the relocation. */
6232 && fix
->fx_addsy
!= NULL
6233 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
6234 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
6235 > fix
->fx_frag
->fr_address
)
6236 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
6237 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
6238 <= fix
->fx_frag
->fr_address
))))
6241 return generic_force_reloc (fix
);
6245 ppc_new_dot_label (symbolS
*sym
)
6247 /* Anchor this label to the current csect for relocations. */
6248 symbol_get_tc (sym
)->within
= ppc_current_csect
;
6251 #endif /* OBJ_XCOFF */
6254 /* If this function returns non-zero, it guarantees that a relocation
6255 will be emitted for a fixup. */
6258 ppc_force_relocation (fixS
*fix
)
6260 /* Branch prediction relocations must force a relocation, as must
6261 the vtable description relocs. */
6262 switch (fix
->fx_r_type
)
6264 case BFD_RELOC_PPC_B16_BRTAKEN
:
6265 case BFD_RELOC_PPC_B16_BRNTAKEN
:
6266 case BFD_RELOC_PPC_BA16_BRTAKEN
:
6267 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
6268 case BFD_RELOC_24_PLT_PCREL
:
6269 case BFD_RELOC_PPC64_TOC
:
6271 case BFD_RELOC_PPC_B26
:
6272 case BFD_RELOC_PPC_BA26
:
6273 case BFD_RELOC_PPC_B16
:
6274 case BFD_RELOC_PPC_BA16
:
6275 /* All branch fixups targeting a localentry symbol must
6276 force a relocation. */
6279 asymbol
*bfdsym
= symbol_get_bfdsym (fix
->fx_addsy
);
6280 elf_symbol_type
*elfsym
6281 = elf_symbol_from (bfd_asymbol_bfd (bfdsym
), bfdsym
);
6282 gas_assert (elfsym
);
6283 if ((STO_PPC64_LOCAL_MASK
& elfsym
->internal_elf_sym
.st_other
) != 0)
6291 if (fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
6292 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
6295 return generic_force_reloc (fix
);
6299 ppc_fix_adjustable (fixS
*fix
)
6301 switch (fix
->fx_r_type
)
6303 /* All branch fixups targeting a localentry symbol must
6304 continue using the symbol. */
6305 case BFD_RELOC_PPC_B26
:
6306 case BFD_RELOC_PPC_BA26
:
6307 case BFD_RELOC_PPC_B16
:
6308 case BFD_RELOC_PPC_BA16
:
6309 case BFD_RELOC_PPC_B16_BRTAKEN
:
6310 case BFD_RELOC_PPC_B16_BRNTAKEN
:
6311 case BFD_RELOC_PPC_BA16_BRTAKEN
:
6312 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
6315 asymbol
*bfdsym
= symbol_get_bfdsym (fix
->fx_addsy
);
6316 elf_symbol_type
*elfsym
6317 = elf_symbol_from (bfd_asymbol_bfd (bfdsym
), bfdsym
);
6318 gas_assert (elfsym
);
6319 if ((STO_PPC64_LOCAL_MASK
& elfsym
->internal_elf_sym
.st_other
) != 0)
6327 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
6328 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
6329 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
6330 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
6331 && fix
->fx_r_type
!= BFD_RELOC_PPC64_GOT16_DS
6332 && fix
->fx_r_type
!= BFD_RELOC_PPC64_GOT16_LO_DS
6333 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
6334 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
6335 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
6336 && !(fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
6337 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
));
6342 ppc_frag_check (struct frag
*fragP
)
6344 if (!fragP
->has_code
)
6347 if (ppc_mach() == bfd_mach_ppc_vle
)
6349 if (((fragP
->fr_address
+ fragP
->insn_addr
) & 1) != 0)
6350 as_bad (_("instruction address is not a multiple of 2"));
6354 if (((fragP
->fr_address
+ fragP
->insn_addr
) & 3) != 0)
6355 as_bad (_("instruction address is not a multiple of 4"));
6359 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
6360 rs_align_code frag. */
6363 ppc_handle_align (struct frag
*fragP
)
6365 valueT count
= (fragP
->fr_next
->fr_address
6366 - (fragP
->fr_address
+ fragP
->fr_fix
));
6368 if (ppc_mach() == bfd_mach_ppc_vle
&& count
!= 0 && (count
& 1) == 0)
6370 char *dest
= fragP
->fr_literal
+ fragP
->fr_fix
;
6373 md_number_to_chars (dest
, 0x4400, 2);
6375 else if (count
!= 0 && (count
& 3) == 0)
6377 char *dest
= fragP
->fr_literal
+ fragP
->fr_fix
;
6381 if (count
> 4 * nop_limit
&& count
< 0x2000000)
6385 /* Make a branch, then follow with nops. Insert another
6386 frag to handle the nops. */
6387 md_number_to_chars (dest
, 0x48000000 + count
, 4);
6392 rest
= xmalloc (SIZEOF_STRUCT_FRAG
+ 4);
6393 memcpy (rest
, fragP
, SIZEOF_STRUCT_FRAG
);
6394 fragP
->fr_next
= rest
;
6396 rest
->fr_address
+= rest
->fr_fix
+ 4;
6398 /* If we leave the next frag as rs_align_code we'll come here
6399 again, resulting in a bunch of branches rather than a
6400 branch followed by nops. */
6401 rest
->fr_type
= rs_align
;
6402 dest
= rest
->fr_literal
;
6405 md_number_to_chars (dest
, 0x60000000, 4);
6407 if ((ppc_cpu
& PPC_OPCODE_POWER6
) != 0
6408 || (ppc_cpu
& PPC_OPCODE_POWER7
) != 0
6409 || (ppc_cpu
& PPC_OPCODE_POWER8
) != 0)
6411 /* For power6, power7 and power8, we want the last nop to be a group
6412 terminating one. Do this by inserting an rs_fill frag immediately
6413 after this one, with its address set to the last nop location.
6414 This will automatically reduce the number of nops in the current
6418 struct frag
*group_nop
= xmalloc (SIZEOF_STRUCT_FRAG
+ 4);
6420 memcpy (group_nop
, fragP
, SIZEOF_STRUCT_FRAG
);
6421 group_nop
->fr_address
= group_nop
->fr_next
->fr_address
- 4;
6422 group_nop
->fr_fix
= 0;
6423 group_nop
->fr_offset
= 1;
6424 group_nop
->fr_type
= rs_fill
;
6425 fragP
->fr_next
= group_nop
;
6426 dest
= group_nop
->fr_literal
;
6429 if ((ppc_cpu
& PPC_OPCODE_POWER7
) != 0
6430 || (ppc_cpu
& PPC_OPCODE_POWER8
) != 0)
6432 if (ppc_cpu
& PPC_OPCODE_E500MC
)
6433 /* e500mc group terminating nop: "ori 0,0,0". */
6434 md_number_to_chars (dest
, 0x60000000, 4);
6436 /* power7/power8 group terminating nop: "ori 2,2,0". */
6437 md_number_to_chars (dest
, 0x60420000, 4);
6440 /* power6 group terminating nop: "ori 1,1,0". */
6441 md_number_to_chars (dest
, 0x60210000, 4);
6446 /* Apply a fixup to the object code. This is called for all the
6447 fixups we generated by the calls to fix_new_exp, above. */
6450 md_apply_fix (fixS
*fixP
, valueT
*valP
, segT seg ATTRIBUTE_UNUSED
)
6452 valueT value
= * valP
;
6454 const struct powerpc_operand
*operand
;
6457 if (fixP
->fx_addsy
!= NULL
)
6459 /* Hack around bfd_install_relocation brain damage. */
6461 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
6466 /* FIXME FIXME FIXME: The value we are passed in *valP includes
6467 the symbol values. If we are doing this relocation the code in
6468 write.c is going to call bfd_install_relocation, which is also
6469 going to use the symbol value. That means that if the reloc is
6470 fully resolved we want to use *valP since bfd_install_relocation is
6472 However, if the reloc is not fully resolved we do not want to
6473 use *valP, and must use fx_offset instead. If the relocation
6474 is PC-relative, we then need to re-apply md_pcrel_from_section
6475 to this new relocation value. */
6476 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
6481 value
= fixP
->fx_offset
;
6483 value
-= md_pcrel_from_section (fixP
, seg
);
6487 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
6489 /* We can't actually support subtracting a symbol. */
6490 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
6494 if (fixP
->fx_pcrel_adjust
!= 0)
6496 /* This is a fixup on an instruction. */
6497 int opindex
= fixP
->fx_pcrel_adjust
& 0xff;
6499 operand
= &powerpc_operands
[opindex
];
6501 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
6502 does not generate a reloc. It uses the offset of `sym' within its
6503 csect. Other usages, such as `.long sym', generate relocs. This
6504 is the documented behaviour of non-TOC symbols. */
6505 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
6506 && (operand
->bitm
& 0xfff0) == 0xfff0
6507 && operand
->shift
== 0
6508 && (operand
->insert
== NULL
|| ppc_obj64
)
6509 && fixP
->fx_addsy
!= NULL
6510 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
6511 && symbol_get_tc (fixP
->fx_addsy
)->symbol_class
!= XMC_TC
6512 && symbol_get_tc (fixP
->fx_addsy
)->symbol_class
!= XMC_TC0
6513 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
6515 value
= fixP
->fx_offset
;
6519 /* During parsing of instructions, a TOC16 reloc is generated for
6520 instructions such as 'lwz RT,SYM(RB)' if SYM is a symbol defined
6521 in the toc. But at parse time, SYM may be not yet defined, so
6522 check again here. */
6523 if (fixP
->fx_r_type
== BFD_RELOC_16
6524 && fixP
->fx_addsy
!= NULL
6525 && ppc_is_toc_sym (fixP
->fx_addsy
))
6526 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
6530 /* Calculate value to be stored in field. */
6532 switch (fixP
->fx_r_type
)
6535 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
6536 case BFD_RELOC_PPC_VLE_LO16A
:
6537 case BFD_RELOC_PPC_VLE_LO16D
:
6539 case BFD_RELOC_LO16
:
6540 case BFD_RELOC_LO16_PCREL
:
6541 fieldval
= value
& 0xffff;
6543 if (operand
!= NULL
&& (operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
6544 fieldval
= SEX16 (fieldval
);
6545 fixP
->fx_no_overflow
= 1;
6548 case BFD_RELOC_HI16
:
6549 case BFD_RELOC_HI16_PCREL
:
6551 if (REPORT_OVERFLOW_HI
&& ppc_obj64
)
6553 fieldval
= value
>> 16;
6554 if (operand
!= NULL
&& (operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
6556 valueT sign
= (((valueT
) -1 >> 16) + 1) >> 1;
6557 fieldval
= ((valueT
) fieldval
^ sign
) - sign
;
6563 case BFD_RELOC_PPC_VLE_HI16A
:
6564 case BFD_RELOC_PPC_VLE_HI16D
:
6565 case BFD_RELOC_PPC64_ADDR16_HIGH
:
6567 fieldval
= PPC_HI (value
);
6568 goto sign_extend_16
;
6570 case BFD_RELOC_HI16_S
:
6571 case BFD_RELOC_HI16_S_PCREL
:
6573 if (REPORT_OVERFLOW_HI
&& ppc_obj64
)
6575 fieldval
= (value
+ 0x8000) >> 16;
6576 if (operand
!= NULL
&& (operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
6578 valueT sign
= (((valueT
) -1 >> 16) + 1) >> 1;
6579 fieldval
= ((valueT
) fieldval
^ sign
) - sign
;
6585 case BFD_RELOC_PPC_VLE_HA16A
:
6586 case BFD_RELOC_PPC_VLE_HA16D
:
6587 case BFD_RELOC_PPC64_ADDR16_HIGHA
:
6589 fieldval
= PPC_HA (value
);
6590 goto sign_extend_16
;
6593 case BFD_RELOC_PPC64_HIGHER
:
6594 fieldval
= PPC_HIGHER (value
);
6595 goto sign_extend_16
;
6597 case BFD_RELOC_PPC64_HIGHER_S
:
6598 fieldval
= PPC_HIGHERA (value
);
6599 goto sign_extend_16
;
6601 case BFD_RELOC_PPC64_HIGHEST
:
6602 fieldval
= PPC_HIGHEST (value
);
6603 goto sign_extend_16
;
6605 case BFD_RELOC_PPC64_HIGHEST_S
:
6606 fieldval
= PPC_HIGHESTA (value
);
6607 goto sign_extend_16
;
6614 if (operand
!= NULL
)
6616 /* Handle relocs in an insn. */
6620 switch (fixP
->fx_r_type
)
6623 /* The following relocs can't be calculated by the assembler.
6624 Leave the field zero. */
6625 case BFD_RELOC_PPC_TPREL16
:
6626 case BFD_RELOC_PPC_TPREL16_LO
:
6627 case BFD_RELOC_PPC_TPREL16_HI
:
6628 case BFD_RELOC_PPC_TPREL16_HA
:
6629 case BFD_RELOC_PPC_DTPREL16
:
6630 case BFD_RELOC_PPC_DTPREL16_LO
:
6631 case BFD_RELOC_PPC_DTPREL16_HI
:
6632 case BFD_RELOC_PPC_DTPREL16_HA
:
6633 case BFD_RELOC_PPC_GOT_TLSGD16
:
6634 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
6635 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
6636 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
6637 case BFD_RELOC_PPC_GOT_TLSLD16
:
6638 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
6639 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
6640 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
6641 case BFD_RELOC_PPC_GOT_TPREL16
:
6642 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
6643 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
6644 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
6645 case BFD_RELOC_PPC_GOT_DTPREL16
:
6646 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
6647 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
6648 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
6649 case BFD_RELOC_PPC64_TPREL16_DS
:
6650 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
6651 case BFD_RELOC_PPC64_TPREL16_HIGH
:
6652 case BFD_RELOC_PPC64_TPREL16_HIGHA
:
6653 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
6654 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
6655 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
6656 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
6657 case BFD_RELOC_PPC64_DTPREL16_HIGH
:
6658 case BFD_RELOC_PPC64_DTPREL16_HIGHA
:
6659 case BFD_RELOC_PPC64_DTPREL16_DS
:
6660 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
6661 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
6662 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
6663 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
6664 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
6665 gas_assert (fixP
->fx_addsy
!= NULL
);
6666 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
6670 /* These also should leave the field zero for the same
6671 reason. Note that older versions of gas wrote values
6672 here. If we want to go back to the old behaviour, then
6673 all _LO and _LO_DS cases will need to be treated like
6674 BFD_RELOC_LO16_PCREL above. Similarly for _HI etc. */
6675 case BFD_RELOC_16_GOTOFF
:
6676 case BFD_RELOC_LO16_GOTOFF
:
6677 case BFD_RELOC_HI16_GOTOFF
:
6678 case BFD_RELOC_HI16_S_GOTOFF
:
6679 case BFD_RELOC_LO16_PLTOFF
:
6680 case BFD_RELOC_HI16_PLTOFF
:
6681 case BFD_RELOC_HI16_S_PLTOFF
:
6682 case BFD_RELOC_GPREL16
:
6683 case BFD_RELOC_16_BASEREL
:
6684 case BFD_RELOC_LO16_BASEREL
:
6685 case BFD_RELOC_HI16_BASEREL
:
6686 case BFD_RELOC_HI16_S_BASEREL
:
6687 case BFD_RELOC_PPC_TOC16
:
6688 case BFD_RELOC_PPC64_TOC16_LO
:
6689 case BFD_RELOC_PPC64_TOC16_HI
:
6690 case BFD_RELOC_PPC64_TOC16_HA
:
6691 case BFD_RELOC_PPC64_PLTGOT16
:
6692 case BFD_RELOC_PPC64_PLTGOT16_LO
:
6693 case BFD_RELOC_PPC64_PLTGOT16_HI
:
6694 case BFD_RELOC_PPC64_PLTGOT16_HA
:
6695 case BFD_RELOC_PPC64_GOT16_DS
:
6696 case BFD_RELOC_PPC64_GOT16_LO_DS
:
6697 case BFD_RELOC_PPC64_PLT16_LO_DS
:
6698 case BFD_RELOC_PPC64_SECTOFF_DS
:
6699 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
6700 case BFD_RELOC_PPC64_TOC16_DS
:
6701 case BFD_RELOC_PPC64_TOC16_LO_DS
:
6702 case BFD_RELOC_PPC64_PLTGOT16_DS
:
6703 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
6704 case BFD_RELOC_PPC_EMB_NADDR16
:
6705 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
6706 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
6707 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
6708 case BFD_RELOC_PPC_EMB_SDAI16
:
6709 case BFD_RELOC_PPC_EMB_SDA2I16
:
6710 case BFD_RELOC_PPC_EMB_SDA2REL
:
6711 case BFD_RELOC_PPC_EMB_SDA21
:
6712 case BFD_RELOC_PPC_EMB_MRKREF
:
6713 case BFD_RELOC_PPC_EMB_RELSEC16
:
6714 case BFD_RELOC_PPC_EMB_RELST_LO
:
6715 case BFD_RELOC_PPC_EMB_RELST_HI
:
6716 case BFD_RELOC_PPC_EMB_RELST_HA
:
6717 case BFD_RELOC_PPC_EMB_BIT_FLD
:
6718 case BFD_RELOC_PPC_EMB_RELSDA
:
6719 case BFD_RELOC_PPC_VLE_SDA21
:
6720 case BFD_RELOC_PPC_VLE_SDA21_LO
:
6721 case BFD_RELOC_PPC_VLE_SDAREL_LO16A
:
6722 case BFD_RELOC_PPC_VLE_SDAREL_LO16D
:
6723 case BFD_RELOC_PPC_VLE_SDAREL_HI16A
:
6724 case BFD_RELOC_PPC_VLE_SDAREL_HI16D
:
6725 case BFD_RELOC_PPC_VLE_SDAREL_HA16A
:
6726 case BFD_RELOC_PPC_VLE_SDAREL_HA16D
:
6727 gas_assert (fixP
->fx_addsy
!= NULL
);
6730 case BFD_RELOC_PPC_TLS
:
6731 case BFD_RELOC_PPC_TLSGD
:
6732 case BFD_RELOC_PPC_TLSLD
:
6738 case BFD_RELOC_PPC_B16
:
6739 /* Adjust the offset to the instruction boundary. */
6749 /* powerpc uses RELA style relocs, so if emitting a reloc the field
6750 contents can stay at zero. */
6751 #define APPLY_RELOC fixP->fx_done
6753 #define APPLY_RELOC 1
6755 if ((fieldval
!= 0 && APPLY_RELOC
) || operand
->insert
!= NULL
)
6757 /* Fetch the instruction, insert the fully resolved operand
6758 value, and stuff the instruction back again. */
6759 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
6760 if (target_big_endian
)
6762 if (fixP
->fx_size
== 4)
6763 insn
= bfd_getb32 ((unsigned char *) where
);
6765 insn
= bfd_getb16 ((unsigned char *) where
);
6769 if (fixP
->fx_size
== 4)
6770 insn
= bfd_getl32 ((unsigned char *) where
);
6772 insn
= bfd_getl16 ((unsigned char *) where
);
6774 insn
= ppc_insert_operand (insn
, operand
, fieldval
,
6775 fixP
->tc_fix_data
.ppc_cpu
,
6776 fixP
->fx_file
, fixP
->fx_line
);
6777 if (target_big_endian
)
6779 if (fixP
->fx_size
== 4)
6780 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
6782 bfd_putb16 ((bfd_vma
) insn
, (unsigned char *) where
);
6786 if (fixP
->fx_size
== 4)
6787 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
6789 bfd_putl16 ((bfd_vma
) insn
, (unsigned char *) where
);
6794 /* Nothing else to do here. */
6797 gas_assert (fixP
->fx_addsy
!= NULL
);
6798 if (fixP
->fx_r_type
== BFD_RELOC_UNUSED
)
6803 /* Use expr_symbol_where to see if this is an expression
6805 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
6806 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6807 _("unresolved expression that must be resolved"));
6809 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6810 _("unsupported relocation against %s"),
6811 S_GET_NAME (fixP
->fx_addsy
));
6818 /* Handle relocs in data. */
6819 switch (fixP
->fx_r_type
)
6821 case BFD_RELOC_VTABLE_INHERIT
:
6823 && !S_IS_DEFINED (fixP
->fx_addsy
)
6824 && !S_IS_WEAK (fixP
->fx_addsy
))
6825 S_SET_WEAK (fixP
->fx_addsy
);
6828 case BFD_RELOC_VTABLE_ENTRY
:
6833 /* These can appear with @l etc. in data. */
6834 case BFD_RELOC_LO16
:
6835 case BFD_RELOC_LO16_PCREL
:
6836 case BFD_RELOC_HI16
:
6837 case BFD_RELOC_HI16_PCREL
:
6838 case BFD_RELOC_HI16_S
:
6839 case BFD_RELOC_HI16_S_PCREL
:
6840 case BFD_RELOC_PPC64_HIGHER
:
6841 case BFD_RELOC_PPC64_HIGHER_S
:
6842 case BFD_RELOC_PPC64_HIGHEST
:
6843 case BFD_RELOC_PPC64_HIGHEST_S
:
6844 case BFD_RELOC_PPC64_ADDR16_HIGH
:
6845 case BFD_RELOC_PPC64_ADDR16_HIGHA
:
6846 case BFD_RELOC_PPC64_ADDR64_LOCAL
:
6849 case BFD_RELOC_PPC_DTPMOD
:
6850 case BFD_RELOC_PPC_TPREL
:
6851 case BFD_RELOC_PPC_DTPREL
:
6852 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
6855 /* Just punt all of these to the linker. */
6856 case BFD_RELOC_PPC_B16_BRTAKEN
:
6857 case BFD_RELOC_PPC_B16_BRNTAKEN
:
6858 case BFD_RELOC_16_GOTOFF
:
6859 case BFD_RELOC_LO16_GOTOFF
:
6860 case BFD_RELOC_HI16_GOTOFF
:
6861 case BFD_RELOC_HI16_S_GOTOFF
:
6862 case BFD_RELOC_LO16_PLTOFF
:
6863 case BFD_RELOC_HI16_PLTOFF
:
6864 case BFD_RELOC_HI16_S_PLTOFF
:
6865 case BFD_RELOC_PPC_COPY
:
6866 case BFD_RELOC_PPC_GLOB_DAT
:
6867 case BFD_RELOC_16_BASEREL
:
6868 case BFD_RELOC_LO16_BASEREL
:
6869 case BFD_RELOC_HI16_BASEREL
:
6870 case BFD_RELOC_HI16_S_BASEREL
:
6871 case BFD_RELOC_PPC_TLS
:
6872 case BFD_RELOC_PPC_DTPREL16_LO
:
6873 case BFD_RELOC_PPC_DTPREL16_HI
:
6874 case BFD_RELOC_PPC_DTPREL16_HA
:
6875 case BFD_RELOC_PPC_TPREL16_LO
:
6876 case BFD_RELOC_PPC_TPREL16_HI
:
6877 case BFD_RELOC_PPC_TPREL16_HA
:
6878 case BFD_RELOC_PPC_GOT_TLSGD16
:
6879 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
6880 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
6881 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
6882 case BFD_RELOC_PPC_GOT_TLSLD16
:
6883 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
6884 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
6885 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
6886 case BFD_RELOC_PPC_GOT_DTPREL16
:
6887 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
6888 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
6889 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
6890 case BFD_RELOC_PPC_GOT_TPREL16
:
6891 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
6892 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
6893 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
6894 case BFD_RELOC_24_PLT_PCREL
:
6895 case BFD_RELOC_PPC_LOCAL24PC
:
6896 case BFD_RELOC_32_PLT_PCREL
:
6897 case BFD_RELOC_GPREL16
:
6898 case BFD_RELOC_PPC_VLE_SDAREL_LO16A
:
6899 case BFD_RELOC_PPC_VLE_SDAREL_HI16A
:
6900 case BFD_RELOC_PPC_VLE_SDAREL_HA16A
:
6901 case BFD_RELOC_PPC_EMB_NADDR32
:
6902 case BFD_RELOC_PPC_EMB_NADDR16
:
6903 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
6904 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
6905 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
6906 case BFD_RELOC_PPC_EMB_SDAI16
:
6907 case BFD_RELOC_PPC_EMB_SDA2REL
:
6908 case BFD_RELOC_PPC_EMB_SDA2I16
:
6909 case BFD_RELOC_PPC_EMB_SDA21
:
6910 case BFD_RELOC_PPC_VLE_SDA21_LO
:
6911 case BFD_RELOC_PPC_EMB_MRKREF
:
6912 case BFD_RELOC_PPC_EMB_RELSEC16
:
6913 case BFD_RELOC_PPC_EMB_RELST_LO
:
6914 case BFD_RELOC_PPC_EMB_RELST_HI
:
6915 case BFD_RELOC_PPC_EMB_RELST_HA
:
6916 case BFD_RELOC_PPC_EMB_BIT_FLD
:
6917 case BFD_RELOC_PPC_EMB_RELSDA
:
6918 case BFD_RELOC_PPC64_TOC
:
6919 case BFD_RELOC_PPC_TOC16
:
6920 case BFD_RELOC_PPC64_TOC16_LO
:
6921 case BFD_RELOC_PPC64_TOC16_HI
:
6922 case BFD_RELOC_PPC64_TOC16_HA
:
6923 case BFD_RELOC_PPC64_DTPREL16_HIGH
:
6924 case BFD_RELOC_PPC64_DTPREL16_HIGHA
:
6925 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
6926 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
6927 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
6928 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
6929 case BFD_RELOC_PPC64_TPREL16_HIGH
:
6930 case BFD_RELOC_PPC64_TPREL16_HIGHA
:
6931 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
6932 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
6933 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
6934 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
6940 case BFD_RELOC_NONE
:
6942 case BFD_RELOC_CTOR
:
6944 case BFD_RELOC_32_PCREL
:
6947 case BFD_RELOC_64_PCREL
:
6949 case BFD_RELOC_16_PCREL
:
6955 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
6960 if (fixP
->fx_size
&& APPLY_RELOC
)
6961 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6962 fieldval
, fixP
->fx_size
);
6965 /* We are only able to convert some relocs to pc-relative. */
6966 if (!fixP
->fx_done
&& fixP
->fx_pcrel
)
6968 switch (fixP
->fx_r_type
)
6970 case BFD_RELOC_LO16
:
6971 fixP
->fx_r_type
= BFD_RELOC_LO16_PCREL
;
6974 case BFD_RELOC_HI16
:
6975 fixP
->fx_r_type
= BFD_RELOC_HI16_PCREL
;
6978 case BFD_RELOC_HI16_S
:
6979 fixP
->fx_r_type
= BFD_RELOC_HI16_S_PCREL
;
6983 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
6987 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
6991 fixP
->fx_r_type
= BFD_RELOC_16_PCREL
;
6994 /* Some of course are already pc-relative. */
6995 case BFD_RELOC_LO16_PCREL
:
6996 case BFD_RELOC_HI16_PCREL
:
6997 case BFD_RELOC_HI16_S_PCREL
:
6998 case BFD_RELOC_64_PCREL
:
6999 case BFD_RELOC_32_PCREL
:
7000 case BFD_RELOC_16_PCREL
:
7001 case BFD_RELOC_PPC_B16
:
7002 case BFD_RELOC_PPC_B16_BRTAKEN
:
7003 case BFD_RELOC_PPC_B16_BRNTAKEN
:
7004 case BFD_RELOC_PPC_B26
:
7005 case BFD_RELOC_PPC_LOCAL24PC
:
7006 case BFD_RELOC_24_PLT_PCREL
:
7007 case BFD_RELOC_32_PLT_PCREL
:
7008 case BFD_RELOC_64_PLT_PCREL
:
7009 case BFD_RELOC_PPC_VLE_REL8
:
7010 case BFD_RELOC_PPC_VLE_REL15
:
7011 case BFD_RELOC_PPC_VLE_REL24
:
7020 /* Use expr_symbol_where to see if this is an
7021 expression symbol. */
7022 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
7023 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
7024 _("unresolved expression that must"
7027 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
7028 _("cannot emit PC relative %s relocation"
7030 bfd_get_reloc_code_name (fixP
->fx_r_type
),
7031 S_GET_NAME (fixP
->fx_addsy
));
7034 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
7035 _("unable to resolve expression"));
7042 ppc_elf_validate_fix (fixP
, seg
);
7043 fixP
->fx_addnumber
= value
;
7045 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
7046 from the section contents. If we are going to be emitting a reloc
7047 then the section contents are immaterial, so don't warn if they
7048 happen to overflow. Leave such warnings to ld. */
7051 fixP
->fx_no_overflow
= 1;
7053 /* Arrange to emit .TOC. as a normal symbol if used in anything
7054 but .TOC.@tocbase. */
7056 && fixP
->fx_r_type
!= BFD_RELOC_PPC64_TOC
7057 && fixP
->fx_addsy
!= NULL
7058 && strcmp (S_GET_NAME (fixP
->fx_addsy
), ".TOC.") == 0)
7059 symbol_get_bfdsym (fixP
->fx_addsy
)->flags
|= BSF_KEEP
;
7062 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
7063 fixP
->fx_addnumber
= 0;
7067 fixP
->fx_addnumber
= 0;
7069 /* We want to use the offset within the toc, not the actual VMA
7071 fixP
->fx_addnumber
=
7072 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
))
7073 - S_GET_VALUE (ppc_toc_csect
);
7074 /* Set *valP to avoid errors. */
7081 /* Generate a reloc for a fixup. */
7084 tc_gen_reloc (asection
*seg ATTRIBUTE_UNUSED
, fixS
*fixp
)
7088 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
7090 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
7091 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
7092 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
7093 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
7094 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
7096 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
7097 _("reloc %d not supported by object file format"),
7098 (int) fixp
->fx_r_type
);
7101 reloc
->addend
= fixp
->fx_addnumber
;
7107 ppc_cfi_frame_initial_instructions (void)
7109 cfi_add_CFA_def_cfa (1, 0);
7113 tc_ppc_regname_to_dw2regnum (char *regname
)
7115 unsigned int regnum
= -1;
7119 static struct { char *name
; int dw2regnum
; } regnames
[] =
7121 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
7122 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
7123 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
7124 { "spe_acc", 111 }, { "spefscr", 112 }
7127 for (i
= 0; i
< ARRAY_SIZE (regnames
); ++i
)
7128 if (strcmp (regnames
[i
].name
, regname
) == 0)
7129 return regnames
[i
].dw2regnum
;
7131 if (regname
[0] == 'r' || regname
[0] == 'f' || regname
[0] == 'v')
7133 p
= regname
+ 1 + (regname
[1] == '.');
7134 regnum
= strtoul (p
, &q
, 10);
7135 if (p
== q
|| *q
|| regnum
>= 32)
7137 if (regname
[0] == 'f')
7139 else if (regname
[0] == 'v')
7142 else if (regname
[0] == 'c' && regname
[1] == 'r')
7144 p
= regname
+ 2 + (regname
[2] == '.');
7145 if (p
[0] < '0' || p
[0] > '7' || p
[1])
7147 regnum
= p
[0] - '0' + 68;