1 /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000)
2 Copyright (C) 1994-2015 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_rdata (int);
133 static void ppc_elf_lcomm (int);
134 static void ppc_elf_localentry (int);
135 static void ppc_elf_abiversion (int);
139 static void ppc_previous (int);
140 static void ppc_pdata (int);
141 static void ppc_ydata (int);
142 static void ppc_reldata (int);
143 static void ppc_rdata (int);
144 static void ppc_ualong (int);
145 static void ppc_znop (int);
146 static void ppc_pe_comm (int);
147 static void ppc_pe_section (int);
148 static void ppc_pe_function (int);
149 static void ppc_pe_tocd (int);
152 /* Generic assembler global variables which must be defined by all
156 /* This string holds the chars that always start a comment. If the
157 pre-processor is disabled, these aren't very useful. The macro
158 tc_comment_chars points to this. We use this, rather than the
159 usual comment_chars, so that we can switch for Solaris conventions. */
160 static const char ppc_solaris_comment_chars
[] = "#!";
161 static const char ppc_eabi_comment_chars
[] = "#";
163 #ifdef TARGET_SOLARIS_COMMENT
164 const char *ppc_comment_chars
= ppc_solaris_comment_chars
;
166 const char *ppc_comment_chars
= ppc_eabi_comment_chars
;
169 const char comment_chars
[] = "#";
172 /* Characters which start a comment at the beginning of a line. */
173 const char line_comment_chars
[] = "#";
175 /* Characters which may be used to separate multiple commands on a
177 const char line_separator_chars
[] = ";";
179 /* Characters which are used to indicate an exponent in a floating
181 const char EXP_CHARS
[] = "eE";
183 /* Characters which mean that a number is a floating point constant,
185 const char FLT_CHARS
[] = "dD";
187 /* Anything that can start an operand needs to be mentioned here,
188 to stop the input scrubber eating whitespace. */
189 const char ppc_symbol_chars
[] = "%[";
191 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
192 int ppc_cie_data_alignment
;
194 /* The dwarf2 minimum instruction length. */
195 int ppc_dwarf2_line_min_insn_length
;
197 /* More than this number of nops in an alignment op gets a branch
199 unsigned long nop_limit
= 4;
201 /* The type of processor we are assembling for. This is one or more
202 of the PPC_OPCODE flags defined in opcode/ppc.h. */
203 ppc_cpu_t ppc_cpu
= 0;
204 ppc_cpu_t sticky
= 0;
206 /* Value for ELF e_flags EF_PPC64_ABI. */
207 unsigned int ppc_abiversion
= 0;
209 /* Flags set on encountering toc relocs. */
211 has_large_toc_reloc
= 1,
212 has_small_toc_reloc
= 2
215 /* Warn on emitting data to code sections. */
217 unsigned long last_insn
;
221 /* The target specific pseudo-ops which we support. */
223 const pseudo_typeS md_pseudo_table
[] =
225 /* Pseudo-ops which must be overridden. */
226 { "byte", ppc_byte
, 0 },
229 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
230 legitimately belong in the obj-*.c file. However, XCOFF is based
231 on COFF, and is only implemented for the RS/6000. We just use
232 obj-coff.c, and add what we need here. */
233 { "comm", ppc_comm
, 0 },
234 { "lcomm", ppc_comm
, 1 },
238 { "bi", ppc_biei
, 0 },
240 { "csect", ppc_csect
, 0 },
241 { "dwsect", ppc_dwsect
, 0 },
242 { "data", ppc_section
, 'd' },
246 { "ei", ppc_biei
, 1 },
248 { "extern", ppc_extern
, 0 },
249 { "function", ppc_function
, 0 },
250 { "lglobl", ppc_lglobl
, 0 },
251 { "ref", ppc_ref
, 0 },
252 { "rename", ppc_rename
, 0 },
253 { "section", ppc_named_section
, 0 },
254 { "stabx", ppc_stabx
, 0 },
255 { "text", ppc_section
, 't' },
256 { "toc", ppc_toc
, 0 },
257 { "long", ppc_xcoff_cons
, 2 },
258 { "llong", ppc_xcoff_cons
, 3 },
259 { "word", ppc_xcoff_cons
, 1 },
260 { "short", ppc_xcoff_cons
, 1 },
261 { "vbyte", ppc_vbyte
, 0 },
265 { "llong", cons
, 8 },
266 { "rdata", ppc_elf_rdata
, 0 },
267 { "rodata", ppc_elf_rdata
, 0 },
268 { "lcomm", ppc_elf_lcomm
, 0 },
269 { "localentry", ppc_elf_localentry
, 0 },
270 { "abiversion", ppc_elf_abiversion
, 0 },
274 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
275 { "previous", ppc_previous
, 0 },
276 { "pdata", ppc_pdata
, 0 },
277 { "ydata", ppc_ydata
, 0 },
278 { "reldata", ppc_reldata
, 0 },
279 { "rdata", ppc_rdata
, 0 },
280 { "ualong", ppc_ualong
, 0 },
281 { "znop", ppc_znop
, 0 },
282 { "comm", ppc_pe_comm
, 0 },
283 { "lcomm", ppc_pe_comm
, 1 },
284 { "section", ppc_pe_section
, 0 },
285 { "function", ppc_pe_function
,0 },
286 { "tocd", ppc_pe_tocd
, 0 },
289 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
291 { "machine", ppc_machine
, 0 },
298 /* Predefined register names if -mregnames (or default for Windows NT).
299 In general, there are lots of them, in an attempt to be compatible
300 with a number of other Windows NT assemblers. */
302 /* Structure to hold information about predefined registers. */
309 /* List of registers that are pre-defined:
311 Each general register has predefined names of the form:
312 1. r<reg_num> which has the value <reg_num>.
313 2. r.<reg_num> which has the value <reg_num>.
315 Each floating point register has predefined names of the form:
316 1. f<reg_num> which has the value <reg_num>.
317 2. f.<reg_num> which has the value <reg_num>.
319 Each vector unit register has predefined names of the form:
320 1. v<reg_num> which has the value <reg_num>.
321 2. v.<reg_num> which has the value <reg_num>.
323 Each condition register has predefined names of the form:
324 1. cr<reg_num> which has the value <reg_num>.
325 2. cr.<reg_num> which has the value <reg_num>.
327 There are individual registers as well:
328 sp or r.sp has the value 1
329 rtoc or r.toc has the value 2
330 fpscr has the value 0
336 dsisr has the value 18
338 sdr1 has the value 25
339 srr0 has the value 26
340 srr1 has the value 27
342 The table is sorted. Suitable for searching by a binary search. */
344 static const struct pd_reg pre_defined_registers
[] =
346 { "cr.0", 0 }, /* Condition Registers */
366 { "dar", 19 }, /* Data Access Register */
367 { "dec", 22 }, /* Decrementer */
368 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
370 { "f.0", 0 }, /* Floating point registers */
397 { "f.32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
463 { "f32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
504 /* Quantization registers used with pair single instructions. */
522 { "lr", 8 }, /* Link Register */
526 { "r.0", 0 }, /* General Purpose Registers */
559 { "r.sp", 1 }, /* Stack Pointer */
561 { "r.toc", 2 }, /* Pointer to the table of contents */
563 { "r0", 0 }, /* More general purpose registers */
596 { "rtoc", 2 }, /* Table of contents */
598 { "sdr1", 25 }, /* Storage Description Register 1 */
602 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
603 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
605 { "v.0", 0 }, /* Vector (Altivec/VMX) registers */
671 { "vs.0", 0 }, /* Vector Scalar (VSX) registers (ISA 2.06). */
805 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
807 /* Given NAME, find the register number associated with that name, return
808 the integer value associated with the given name or -1 on failure. */
811 reg_name_search (const struct pd_reg
*regs
, int regcount
, const char *name
)
813 int middle
, low
, high
;
821 middle
= (low
+ high
) / 2;
822 cmp
= strcasecmp (name
, regs
[middle
].name
);
828 return regs
[middle
].value
;
836 * Summary of register_name.
838 * in: Input_line_pointer points to 1st char of operand.
840 * out: A expressionS.
841 * The operand may have been a register: in this case, X_op == O_register,
842 * X_add_number is set to the register number, and truth is returned.
843 * Input_line_pointer->(next non-blank) char after operand, or is in its
848 register_name (expressionS
*expressionP
)
855 /* Find the spelling of the operand. */
856 start
= name
= input_line_pointer
;
857 if (name
[0] == '%' && ISALPHA (name
[1]))
858 name
= ++input_line_pointer
;
860 else if (!reg_names_p
|| !ISALPHA (name
[0]))
863 c
= get_symbol_end ();
864 reg_number
= reg_name_search (pre_defined_registers
, REG_NAME_CNT
, name
);
866 /* Put back the delimiting char. */
867 *input_line_pointer
= c
;
869 /* Look to see if it's in the register table. */
872 expressionP
->X_op
= O_register
;
873 expressionP
->X_add_number
= reg_number
;
875 /* Make the rest nice. */
876 expressionP
->X_add_symbol
= NULL
;
877 expressionP
->X_op_symbol
= NULL
;
881 /* Reset the line as if we had not done anything. */
882 input_line_pointer
= start
;
886 /* This function is called for each symbol seen in an expression. It
887 handles the special parsing which PowerPC assemblers are supposed
888 to use for condition codes. */
890 /* Whether to do the special parsing. */
891 static bfd_boolean cr_operand
;
893 /* Names to recognize in a condition code. This table is sorted. */
894 static const struct pd_reg cr_names
[] =
911 /* Parsing function. This returns non-zero if it recognized an
915 ppc_parse_name (const char *name
, expressionS
*exp
)
924 val
= reg_name_search (cr_names
, sizeof cr_names
/ sizeof cr_names
[0],
929 exp
->X_op
= O_constant
;
930 exp
->X_add_number
= val
;
935 /* Local variables. */
937 /* Whether to target xcoff64/elf64. */
938 static unsigned int ppc_obj64
= BFD_DEFAULT_TARGET_SIZE
== 64;
940 /* Opcode hash table. */
941 static struct hash_control
*ppc_hash
;
943 /* Macro hash table. */
944 static struct hash_control
*ppc_macro_hash
;
947 /* What type of shared library support to use. */
948 static enum { SHLIB_NONE
, SHLIB_PIC
, SHLIB_MRELOCATABLE
} shlib
= SHLIB_NONE
;
950 /* Flags to set in the elf header. */
951 static flagword ppc_flags
= 0;
953 /* Whether this is Solaris or not. */
954 #ifdef TARGET_SOLARIS_COMMENT
955 #define SOLARIS_P TRUE
957 #define SOLARIS_P FALSE
960 static bfd_boolean msolaris
= SOLARIS_P
;
965 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
966 using a bunch of different sections. These assembler sections,
967 however, are all encompassed within the .text or .data sections of
968 the final output file. We handle this by using different
969 subsegments within these main segments. */
971 /* Next subsegment to allocate within the .text segment. */
972 static subsegT ppc_text_subsegment
= 2;
974 /* Linked list of csects in the text section. */
975 static symbolS
*ppc_text_csects
;
977 /* Next subsegment to allocate within the .data segment. */
978 static subsegT ppc_data_subsegment
= 2;
980 /* Linked list of csects in the data section. */
981 static symbolS
*ppc_data_csects
;
983 /* The current csect. */
984 static symbolS
*ppc_current_csect
;
986 /* The RS/6000 assembler uses a TOC which holds addresses of functions
987 and variables. Symbols are put in the TOC with the .tc pseudo-op.
988 A special relocation is used when accessing TOC entries. We handle
989 the TOC as a subsegment within the .data segment. We set it up if
990 we see a .toc pseudo-op, and save the csect symbol here. */
991 static symbolS
*ppc_toc_csect
;
993 /* The first frag in the TOC subsegment. */
994 static fragS
*ppc_toc_frag
;
996 /* The first frag in the first subsegment after the TOC in the .data
997 segment. NULL if there are no subsegments after the TOC. */
998 static fragS
*ppc_after_toc_frag
;
1000 /* The current static block. */
1001 static symbolS
*ppc_current_block
;
1003 /* The COFF debugging section; set by md_begin. This is not the
1004 .debug section, but is instead the secret BFD section which will
1005 cause BFD to set the section number of a symbol to N_DEBUG. */
1006 static asection
*ppc_coff_debug_section
;
1008 /* Structure to set the length field of the dwarf sections. */
1009 struct dw_subsection
{
1010 /* Subsections are simply linked. */
1011 struct dw_subsection
*link
;
1013 /* The subsection number. */
1016 /* Expression to compute the length of the section. */
1017 expressionS end_exp
;
1020 static struct dw_section
{
1021 /* Corresponding section. */
1024 /* Simply linked list of subsections with a label. */
1025 struct dw_subsection
*list_subseg
;
1027 /* The anonymous subsection. */
1028 struct dw_subsection
*anon_subseg
;
1029 } dw_sections
[XCOFF_DWSECT_NBR_NAMES
];
1030 #endif /* OBJ_XCOFF */
1034 /* Various sections that we need for PE coff support. */
1035 static segT ydata_section
;
1036 static segT pdata_section
;
1037 static segT reldata_section
;
1038 static segT rdata_section
;
1039 static segT tocdata_section
;
1041 /* The current section and the previous section. See ppc_previous. */
1042 static segT ppc_previous_section
;
1043 static segT ppc_current_section
;
1048 symbolS
*GOT_symbol
; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
1049 #define PPC_APUINFO_ISEL 0x40
1050 #define PPC_APUINFO_PMR 0x41
1051 #define PPC_APUINFO_RFMCI 0x42
1052 #define PPC_APUINFO_CACHELCK 0x43
1053 #define PPC_APUINFO_SPE 0x100
1054 #define PPC_APUINFO_EFS 0x101
1055 #define PPC_APUINFO_BRLOCK 0x102
1056 #define PPC_APUINFO_VLE 0x104
1059 * We keep a list of APUinfo
1061 unsigned long *ppc_apuinfo_list
;
1062 unsigned int ppc_apuinfo_num
;
1063 unsigned int ppc_apuinfo_num_alloc
;
1064 #endif /* OBJ_ELF */
1067 const char *const md_shortopts
= "b:l:usm:K:VQ:";
1069 const char *const md_shortopts
= "um:";
1071 #define OPTION_NOPS (OPTION_MD_BASE + 0)
1072 const struct option md_longopts
[] = {
1073 {"nops", required_argument
, NULL
, OPTION_NOPS
},
1074 {"ppc476-workaround", no_argument
, &warn_476
, 1},
1075 {"no-ppc476-workaround", no_argument
, &warn_476
, 0},
1076 {NULL
, no_argument
, NULL
, 0}
1078 const size_t md_longopts_size
= sizeof (md_longopts
);
1081 md_parse_option (int c
, char *arg
)
1088 /* -u means that any undefined symbols should be treated as
1089 external, which is the default for gas anyhow. */
1094 /* Solaris as takes -le (presumably for little endian). For completeness
1095 sake, recognize -be also. */
1096 if (strcmp (arg
, "e") == 0)
1098 target_big_endian
= 0;
1099 set_target_endian
= 1;
1100 if (ppc_cpu
& PPC_OPCODE_VLE
)
1101 as_bad (_("the use of -mvle requires big endian."));
1109 if (strcmp (arg
, "e") == 0)
1111 target_big_endian
= 1;
1112 set_target_endian
= 1;
1120 /* Recognize -K PIC. */
1121 if (strcmp (arg
, "PIC") == 0 || strcmp (arg
, "pic") == 0)
1124 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
1132 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
1134 if (strcmp (arg
, "64") == 0)
1138 if (ppc_cpu
& PPC_OPCODE_VLE
)
1139 as_bad (_("the use of -mvle requires -a32."));
1141 as_fatal (_("%s unsupported"), "-a64");
1144 else if (strcmp (arg
, "32") == 0)
1151 new_cpu
= ppc_parse_cpu (ppc_cpu
, &sticky
, arg
);
1155 if (strcmp (arg
, "vle") == 0)
1157 if (set_target_endian
&& target_big_endian
== 0)
1158 as_bad (_("the use of -mvle requires big endian."));
1160 as_bad (_("the use of -mvle requires -a32."));
1164 else if (strcmp (arg
, "regnames") == 0)
1167 else if (strcmp (arg
, "no-regnames") == 0)
1168 reg_names_p
= FALSE
;
1171 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1172 that require relocation. */
1173 else if (strcmp (arg
, "relocatable") == 0)
1175 shlib
= SHLIB_MRELOCATABLE
;
1176 ppc_flags
|= EF_PPC_RELOCATABLE
;
1179 else if (strcmp (arg
, "relocatable-lib") == 0)
1181 shlib
= SHLIB_MRELOCATABLE
;
1182 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
1185 /* -memb, set embedded bit. */
1186 else if (strcmp (arg
, "emb") == 0)
1187 ppc_flags
|= EF_PPC_EMB
;
1189 /* -mlittle/-mbig set the endianness. */
1190 else if (strcmp (arg
, "little") == 0
1191 || strcmp (arg
, "little-endian") == 0)
1193 target_big_endian
= 0;
1194 set_target_endian
= 1;
1195 if (ppc_cpu
& PPC_OPCODE_VLE
)
1196 as_bad (_("the use of -mvle requires big endian."));
1199 else if (strcmp (arg
, "big") == 0 || strcmp (arg
, "big-endian") == 0)
1201 target_big_endian
= 1;
1202 set_target_endian
= 1;
1205 else if (strcmp (arg
, "solaris") == 0)
1208 ppc_comment_chars
= ppc_solaris_comment_chars
;
1211 else if (strcmp (arg
, "no-solaris") == 0)
1214 ppc_comment_chars
= ppc_eabi_comment_chars
;
1219 as_bad (_("invalid switch -m%s"), arg
);
1225 /* -V: SVR4 argument to print version ID. */
1227 print_version_id ();
1230 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1231 should be emitted or not. FIXME: Not implemented. */
1235 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1236 rather than .stabs.excl, which is ignored by the linker.
1237 FIXME: Not implemented. */
1248 nop_limit
= strtoul (optarg
, &end
, 0);
1250 as_bad (_("--nops needs a numeric argument"));
1265 md_show_usage (FILE *stream
)
1267 fprintf (stream
, _("\
1269 -a32 generate ELF32/XCOFF32\n\
1270 -a64 generate ELF64/XCOFF64\n\
1272 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1273 -mpwr generate code for POWER (RIOS1)\n\
1274 -m601 generate code for PowerPC 601\n\
1275 -mppc, -mppc32, -m603, -m604\n\
1276 generate code for PowerPC 603/604\n\
1277 -m403 generate code for PowerPC 403\n\
1278 -m405 generate code for PowerPC 405\n\
1279 -m440 generate code for PowerPC 440\n\
1280 -m464 generate code for PowerPC 464\n\
1281 -m476 generate code for PowerPC 476\n\
1282 -m7400, -m7410, -m7450, -m7455\n\
1283 generate code for PowerPC 7400/7410/7450/7455\n\
1284 -m750cl generate code for PowerPC 750cl\n"));
1285 fprintf (stream
, _("\
1286 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1287 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1288 -mbooke generate code for 32-bit PowerPC BookE\n\
1289 -ma2 generate code for A2 architecture\n\
1290 -mpower4, -mpwr4 generate code for Power4 architecture\n\
1291 -mpower5, -mpwr5, -mpwr5x\n\
1292 generate code for Power5 architecture\n\
1293 -mpower6, -mpwr6 generate code for Power6 architecture\n\
1294 -mpower7, -mpwr7 generate code for Power7 architecture\n\
1295 -mpower8, -mpwr8 generate code for Power8 architecture\n\
1296 -mcell generate code for Cell Broadband Engine architecture\n\
1297 -mcom generate code Power/PowerPC common instructions\n\
1298 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1299 fprintf (stream
, _("\
1300 -maltivec generate code for AltiVec\n\
1301 -mvsx generate code for Vector-Scalar (VSX) instructions\n\
1302 -mhtm generate code for Hardware Transactional Memory\n\
1303 -me300 generate code for PowerPC e300 family\n\
1304 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1305 -me500mc, generate code for Freescale e500mc core complex\n\
1306 -me500mc64, generate code for Freescale e500mc64 core complex\n\
1307 -me5500, generate code for Freescale e5500 core complex\n\
1308 -me6500, generate code for Freescale e6500 core complex\n\
1309 -mspe generate code for Motorola SPE instructions\n\
1310 -mvle generate code for Freescale VLE instructions\n\
1311 -mtitan generate code for AppliedMicro Titan core complex\n\
1312 -mregnames Allow symbolic names for registers\n\
1313 -mno-regnames Do not allow symbolic names for registers\n"));
1315 fprintf (stream
, _("\
1316 -mrelocatable support for GCC's -mrelocatble option\n\
1317 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1318 -memb set PPC_EMB bit in ELF flags\n\
1319 -mlittle, -mlittle-endian, -le\n\
1320 generate code for a little endian machine\n\
1321 -mbig, -mbig-endian, -be\n\
1322 generate code for a big endian machine\n\
1323 -msolaris generate code for Solaris\n\
1324 -mno-solaris do not generate code for Solaris\n\
1325 -K PIC set EF_PPC_RELOCATABLE_LIB in ELF flags\n\
1326 -V print assembler version number\n\
1327 -Qy, -Qn ignored\n"));
1329 fprintf (stream
, _("\
1330 -nops=count when aligning, more than COUNT nops uses a branch\n\
1331 -ppc476-workaround warn if emitting data to code sections\n"));
1334 /* Set ppc_cpu if it is not already set. */
1339 const char *default_os
= TARGET_OS
;
1340 const char *default_cpu
= TARGET_CPU
;
1342 if ((ppc_cpu
& ~(ppc_cpu_t
) PPC_OPCODE_ANY
) == 0)
1345 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_64
;
1346 else if (strncmp (default_os
, "aix", 3) == 0
1347 && default_os
[3] >= '4' && default_os
[3] <= '9')
1348 ppc_cpu
|= PPC_OPCODE_COMMON
;
1349 else if (strncmp (default_os
, "aix3", 4) == 0)
1350 ppc_cpu
|= PPC_OPCODE_POWER
;
1351 else if (strcmp (default_cpu
, "rs6000") == 0)
1352 ppc_cpu
|= PPC_OPCODE_POWER
;
1353 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1354 ppc_cpu
|= PPC_OPCODE_PPC
;
1356 as_fatal (_("unknown default cpu = %s, os = %s"),
1357 default_cpu
, default_os
);
1361 /* Figure out the BFD architecture to use. This function and ppc_mach
1362 are called well before md_begin, when the output file is opened. */
1364 enum bfd_architecture
1367 const char *default_cpu
= TARGET_CPU
;
1370 if ((ppc_cpu
& PPC_OPCODE_PPC
) != 0)
1371 return bfd_arch_powerpc
;
1372 if ((ppc_cpu
& PPC_OPCODE_VLE
) != 0)
1373 return bfd_arch_powerpc
;
1374 if ((ppc_cpu
& PPC_OPCODE_POWER
) != 0)
1375 return bfd_arch_rs6000
;
1376 if ((ppc_cpu
& (PPC_OPCODE_COMMON
| PPC_OPCODE_ANY
)) != 0)
1378 if (strcmp (default_cpu
, "rs6000") == 0)
1379 return bfd_arch_rs6000
;
1380 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1381 return bfd_arch_powerpc
;
1384 as_fatal (_("neither Power nor PowerPC opcodes were selected."));
1385 return bfd_arch_unknown
;
1392 return bfd_mach_ppc64
;
1393 else if (ppc_arch () == bfd_arch_rs6000
)
1394 return bfd_mach_rs6k
;
1395 else if (ppc_cpu
& PPC_OPCODE_TITAN
)
1396 return bfd_mach_ppc_titan
;
1397 else if (ppc_cpu
& PPC_OPCODE_VLE
)
1398 return bfd_mach_ppc_vle
;
1400 return bfd_mach_ppc
;
1404 ppc_target_format (void)
1408 return target_big_endian
? "pe-powerpc" : "pe-powerpcle";
1410 return "xcoff-powermac";
1413 return (ppc_obj64
? "aix5coff64-rs6000" : "aixcoff-rs6000");
1415 return (ppc_obj64
? "aixcoff64-rs6000" : "aixcoff-rs6000");
1421 return (ppc_obj64
? "elf64-powerpc-freebsd" : "elf32-powerpc-freebsd");
1422 # elif defined (TE_VXWORKS)
1423 return "elf32-powerpc-vxworks";
1425 return (target_big_endian
1426 ? (ppc_obj64
? "elf64-powerpc" : "elf32-powerpc")
1427 : (ppc_obj64
? "elf64-powerpcle" : "elf32-powerpcle"));
1432 /* Validate one entry in powerpc_opcodes[] or vle_opcodes[].
1433 Return TRUE if there's a problem, otherwise FALSE. */
1436 insn_validate (const struct powerpc_opcode
*op
)
1438 const unsigned char *o
;
1439 unsigned long omask
= op
->mask
;
1441 /* The mask had better not trim off opcode bits. */
1442 if ((op
->opcode
& omask
) != op
->opcode
)
1444 as_bad (_("mask trims opcode bits for %s"), op
->name
);
1448 /* The operands must not overlap the opcode or each other. */
1449 for (o
= op
->operands
; *o
; ++o
)
1451 if (*o
>= num_powerpc_operands
)
1453 as_bad (_("operand index error for %s"), op
->name
);
1458 const struct powerpc_operand
*operand
= &powerpc_operands
[*o
];
1459 if (operand
->shift
!= PPC_OPSHIFT_INV
)
1463 if (operand
->shift
>= 0)
1464 mask
= operand
->bitm
<< operand
->shift
;
1466 mask
= operand
->bitm
>> -operand
->shift
;
1469 as_bad (_("operand %d overlap in %s"),
1470 (int) (o
- op
->operands
), op
->name
);
1480 /* Insert opcodes and macros into hash tables. Called at startup and
1481 for .machine pseudo. */
1484 ppc_setup_opcodes (void)
1486 const struct powerpc_opcode
*op
;
1487 const struct powerpc_opcode
*op_end
;
1488 const struct powerpc_macro
*macro
;
1489 const struct powerpc_macro
*macro_end
;
1490 bfd_boolean bad_insn
= FALSE
;
1492 if (ppc_hash
!= NULL
)
1493 hash_die (ppc_hash
);
1494 if (ppc_macro_hash
!= NULL
)
1495 hash_die (ppc_macro_hash
);
1497 /* Insert the opcodes into a hash table. */
1498 ppc_hash
= hash_new ();
1500 if (ENABLE_CHECKING
)
1504 /* An index into powerpc_operands is stored in struct fix
1505 fx_pcrel_adjust which is 8 bits wide. */
1506 gas_assert (num_powerpc_operands
< 256);
1508 /* Check operand masks. Code here and in the disassembler assumes
1509 all the 1's in the mask are contiguous. */
1510 for (i
= 0; i
< num_powerpc_operands
; ++i
)
1512 unsigned long mask
= powerpc_operands
[i
].bitm
;
1513 unsigned long right_bit
;
1516 right_bit
= mask
& -mask
;
1518 right_bit
= mask
& -mask
;
1519 if (mask
!= right_bit
)
1521 as_bad (_("powerpc_operands[%d].bitm invalid"), i
);
1524 for (j
= i
+ 1; j
< num_powerpc_operands
; ++j
)
1525 if (memcmp (&powerpc_operands
[i
], &powerpc_operands
[j
],
1526 sizeof (powerpc_operands
[0])) == 0)
1528 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1535 op_end
= powerpc_opcodes
+ powerpc_num_opcodes
;
1536 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1538 if (ENABLE_CHECKING
)
1540 if (op
!= powerpc_opcodes
)
1542 int old_opcode
= PPC_OP (op
[-1].opcode
);
1543 int new_opcode
= PPC_OP (op
[0].opcode
);
1545 #ifdef PRINT_OPCODE_TABLE
1546 printf ("%-14s\t#%04u\tmajor op: 0x%x\top: 0x%x\tmask: 0x%x\tflags: 0x%llx\n",
1547 op
->name
, (unsigned int) (op
- powerpc_opcodes
),
1548 (unsigned int) new_opcode
, (unsigned int) op
->opcode
,
1549 (unsigned int) op
->mask
, (unsigned long long) op
->flags
);
1552 /* The major opcodes had better be sorted. Code in the
1553 disassembler assumes the insns are sorted according to
1555 if (new_opcode
< old_opcode
)
1557 as_bad (_("major opcode is not sorted for %s"),
1562 bad_insn
|= insn_validate (op
);
1565 if ((ppc_cpu
& op
->flags
) != 0
1566 && !(ppc_cpu
& op
->deprecated
))
1570 retval
= hash_insert (ppc_hash
, op
->name
, (void *) op
);
1573 as_bad (_("duplicate instruction %s"),
1580 if ((ppc_cpu
& PPC_OPCODE_ANY
) != 0)
1581 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1582 hash_insert (ppc_hash
, op
->name
, (void *) op
);
1584 op_end
= vle_opcodes
+ vle_num_opcodes
;
1585 for (op
= vle_opcodes
; op
< op_end
; op
++)
1587 if (ENABLE_CHECKING
)
1589 if (op
!= vle_opcodes
)
1591 unsigned old_seg
, new_seg
;
1593 old_seg
= VLE_OP (op
[-1].opcode
, op
[-1].mask
);
1594 old_seg
= VLE_OP_TO_SEG (old_seg
);
1595 new_seg
= VLE_OP (op
[0].opcode
, op
[0].mask
);
1596 new_seg
= VLE_OP_TO_SEG (new_seg
);
1598 #ifdef PRINT_OPCODE_TABLE
1599 printf ("%-14s\t#%04u\tmajor op: 0x%x\top: 0x%x\tmask: 0x%x\tflags: 0x%llx\n",
1600 op
->name
, (unsigned int) (op
- powerpc_opcodes
),
1601 (unsigned int) new_seg
, (unsigned int) op
->opcode
,
1602 (unsigned int) op
->mask
, (unsigned long long) op
->flags
);
1604 /* The major opcodes had better be sorted. Code in the
1605 disassembler assumes the insns are sorted according to
1607 if (new_seg
< old_seg
)
1609 as_bad (_("major opcode is not sorted for %s"),
1615 bad_insn
|= insn_validate (op
);
1618 if ((ppc_cpu
& op
->flags
) != 0
1619 && !(ppc_cpu
& op
->deprecated
))
1623 retval
= hash_insert (ppc_hash
, op
->name
, (void *) op
);
1626 as_bad (_("duplicate instruction %s"),
1633 if ((ppc_cpu
& PPC_OPCODE_VLE
) != 0)
1634 for (op
= vle_opcodes
; op
< op_end
; op
++)
1635 hash_insert (ppc_hash
, op
->name
, (void *) op
);
1637 /* Insert the macros into a hash table. */
1638 ppc_macro_hash
= hash_new ();
1640 macro_end
= powerpc_macros
+ powerpc_num_macros
;
1641 for (macro
= powerpc_macros
; macro
< macro_end
; macro
++)
1643 if ((macro
->flags
& ppc_cpu
) != 0 || (ppc_cpu
& PPC_OPCODE_ANY
) != 0)
1647 retval
= hash_insert (ppc_macro_hash
, macro
->name
, (void *) macro
);
1648 if (retval
!= (const char *) NULL
)
1650 as_bad (_("duplicate macro %s"), macro
->name
);
1660 /* This function is called when the assembler starts up. It is called
1661 after the options have been parsed and the output file has been
1669 ppc_cie_data_alignment
= ppc_obj64
? -8 : -4;
1670 ppc_dwarf2_line_min_insn_length
= (ppc_cpu
& PPC_OPCODE_VLE
) ? 2 : 4;
1673 /* Set the ELF flags if desired. */
1674 if (ppc_flags
&& !msolaris
)
1675 bfd_set_private_flags (stdoutput
, ppc_flags
);
1678 ppc_setup_opcodes ();
1680 /* Tell the main code what the endianness is if it is not overridden
1682 if (!set_target_endian
)
1684 set_target_endian
= 1;
1685 target_big_endian
= PPC_BIG_ENDIAN
;
1689 ppc_coff_debug_section
= coff_section_from_bfd_index (stdoutput
, N_DEBUG
);
1691 /* Create dummy symbols to serve as initial csects. This forces the
1692 text csects to precede the data csects. These symbols will not
1694 ppc_text_csects
= symbol_make ("dummy\001");
1695 symbol_get_tc (ppc_text_csects
)->within
= ppc_text_csects
;
1696 ppc_data_csects
= symbol_make ("dummy\001");
1697 symbol_get_tc (ppc_data_csects
)->within
= ppc_data_csects
;
1702 ppc_current_section
= text_section
;
1703 ppc_previous_section
= 0;
1712 if (ppc_apuinfo_list
== NULL
)
1715 /* Ok, so write the section info out. We have this layout:
1719 0 8 length of "APUinfo\0"
1720 4 (n*4) number of APU's (4 bytes each)
1723 20 APU#1 first APU's info
1724 24 APU#2 second APU's info
1729 asection
*seg
= now_seg
;
1730 subsegT subseg
= now_subseg
;
1731 asection
*apuinfo_secp
= (asection
*) NULL
;
1734 /* Create the .PPC.EMB.apuinfo section. */
1735 apuinfo_secp
= subseg_new (".PPC.EMB.apuinfo", 0);
1736 bfd_set_section_flags (stdoutput
,
1738 SEC_HAS_CONTENTS
| SEC_READONLY
);
1741 md_number_to_chars (p
, (valueT
) 8, 4);
1744 md_number_to_chars (p
, (valueT
) ppc_apuinfo_num
* 4, 4);
1747 md_number_to_chars (p
, (valueT
) 2, 4);
1750 strcpy (p
, "APUinfo");
1752 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
1755 md_number_to_chars (p
, (valueT
) ppc_apuinfo_list
[i
], 4);
1758 frag_align (2, 0, 0);
1760 /* We probably can't restore the current segment, for there likely
1763 subseg_set (seg
, subseg
);
1768 /* Insert an operand value into an instruction. */
1770 static unsigned long
1771 ppc_insert_operand (unsigned long insn
,
1772 const struct powerpc_operand
*operand
,
1778 long min
, max
, right
;
1780 max
= operand
->bitm
;
1784 if ((operand
->flags
& PPC_OPERAND_SIGNOPT
) != 0)
1786 /* Extend the allowed range for addis to [-65536, 65535].
1787 Similarly for some VLE high part insns. For 64-bit it
1788 would be good to disable this for signed fields since the
1789 value is sign extended into the high 32 bits of the register.
1790 If the value is, say, an address, then we might care about
1791 the high bits. However, gcc as of 2014-06 uses unsigned
1792 values when loading the high part of 64-bit constants using
1794 Use the same extended range for cmpli, to allow at least
1796 min
= ~max
& -right
;
1798 else if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
1800 max
= (max
>> 1) & -right
;
1801 min
= ~max
& -right
;
1804 if ((operand
->flags
& PPC_OPERAND_PLUS1
) != 0)
1807 if ((operand
->flags
& PPC_OPERAND_NEGATIVE
) != 0)
1816 /* Some people write constants with the sign extension done by
1817 hand but only up to 32 bits. This shouldn't really be valid,
1818 but, to permit this code to assemble on a 64-bit host, we
1819 sign extend the 32-bit value to 64 bits if so doing makes the
1822 && (offsetT
) (val
- 0x80000000 - 0x80000000) >= min
1823 && (offsetT
) (val
- 0x80000000 - 0x80000000) <= max
1824 && ((val
- 0x80000000 - 0x80000000) & (right
- 1)) == 0)
1825 val
= val
- 0x80000000 - 0x80000000;
1827 /* Similarly, people write expressions like ~(1<<15), and expect
1828 this to be OK for a 32-bit unsigned value. */
1830 && (offsetT
) (val
+ 0x80000000 + 0x80000000) >= min
1831 && (offsetT
) (val
+ 0x80000000 + 0x80000000) <= max
1832 && ((val
+ 0x80000000 + 0x80000000) & (right
- 1)) == 0)
1833 val
= val
+ 0x80000000 + 0x80000000;
1837 || (val
& (right
- 1)) != 0)
1838 as_bad_value_out_of_range (_("operand"), val
, min
, max
, file
, line
);
1841 if (operand
->insert
)
1846 insn
= (*operand
->insert
) (insn
, (long) val
, cpu
, &errmsg
);
1847 if (errmsg
!= (const char *) NULL
)
1848 as_bad_where (file
, line
, "%s", errmsg
);
1850 else if (operand
->shift
>= 0)
1851 insn
|= ((long) val
& operand
->bitm
) << operand
->shift
;
1853 insn
|= ((long) val
& operand
->bitm
) >> -operand
->shift
;
1860 /* Parse @got, etc. and return the desired relocation. */
1861 static bfd_reloc_code_real_type
1862 ppc_elf_suffix (char **str_p
, expressionS
*exp_p
)
1866 unsigned int length
: 8;
1867 unsigned int valid32
: 1;
1868 unsigned int valid64
: 1;
1877 const struct map_bfd
*ptr
;
1879 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1880 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1881 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1883 static const struct map_bfd mapping
[] = {
1884 MAP ("l", BFD_RELOC_LO16
),
1885 MAP ("h", BFD_RELOC_HI16
),
1886 MAP ("ha", BFD_RELOC_HI16_S
),
1887 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN
),
1888 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN
),
1889 MAP ("got", BFD_RELOC_16_GOTOFF
),
1890 MAP ("got@l", BFD_RELOC_LO16_GOTOFF
),
1891 MAP ("got@h", BFD_RELOC_HI16_GOTOFF
),
1892 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF
),
1893 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF
),
1894 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF
),
1895 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF
),
1896 MAP ("copy", BFD_RELOC_PPC_COPY
),
1897 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT
),
1898 MAP ("sectoff", BFD_RELOC_16_BASEREL
),
1899 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL
),
1900 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL
),
1901 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL
),
1902 MAP ("tls", BFD_RELOC_PPC_TLS
),
1903 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD
),
1904 MAP ("dtprel", BFD_RELOC_PPC_DTPREL
),
1905 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO
),
1906 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI
),
1907 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA
),
1908 MAP ("tprel", BFD_RELOC_PPC_TPREL
),
1909 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO
),
1910 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI
),
1911 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA
),
1912 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16
),
1913 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO
),
1914 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI
),
1915 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA
),
1916 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16
),
1917 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO
),
1918 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI
),
1919 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA
),
1920 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16
),
1921 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO
),
1922 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI
),
1923 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA
),
1924 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16
),
1925 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO
),
1926 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI
),
1927 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA
),
1928 MAP32 ("fixup", BFD_RELOC_CTOR
),
1929 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL
),
1930 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL
),
1931 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC
),
1932 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC
),
1933 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL
),
1934 MAP32 ("sdarel", BFD_RELOC_GPREL16
),
1935 MAP32 ("sdarel@l", BFD_RELOC_PPC_VLE_SDAREL_LO16A
),
1936 MAP32 ("sdarel@h", BFD_RELOC_PPC_VLE_SDAREL_HI16A
),
1937 MAP32 ("sdarel@ha", BFD_RELOC_PPC_VLE_SDAREL_HA16A
),
1938 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32
),
1939 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16
),
1940 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO
),
1941 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI
),
1942 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA
),
1943 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16
),
1944 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL
),
1945 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16
),
1946 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21
),
1947 MAP32 ("sda21@l", BFD_RELOC_PPC_VLE_SDA21_LO
),
1948 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF
),
1949 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16
),
1950 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO
),
1951 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI
),
1952 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA
),
1953 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD
),
1954 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA
),
1955 MAP32 ("xgot", BFD_RELOC_PPC_TOC16
),
1956 MAP64 ("high", BFD_RELOC_PPC64_ADDR16_HIGH
),
1957 MAP64 ("higha", BFD_RELOC_PPC64_ADDR16_HIGHA
),
1958 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER
),
1959 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S
),
1960 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST
),
1961 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S
),
1962 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC
),
1963 MAP64 ("toc", BFD_RELOC_PPC_TOC16
),
1964 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO
),
1965 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI
),
1966 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA
),
1967 MAP64 ("dtprel@high", BFD_RELOC_PPC64_DTPREL16_HIGH
),
1968 MAP64 ("dtprel@higha", BFD_RELOC_PPC64_DTPREL16_HIGHA
),
1969 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER
),
1970 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA
),
1971 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST
),
1972 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA
),
1973 MAP64 ("localentry", BFD_RELOC_PPC64_ADDR64_LOCAL
),
1974 MAP64 ("tprel@high", BFD_RELOC_PPC64_TPREL16_HIGH
),
1975 MAP64 ("tprel@higha", BFD_RELOC_PPC64_TPREL16_HIGHA
),
1976 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER
),
1977 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA
),
1978 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST
),
1979 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA
),
1980 { (char *) 0, 0, 0, 0, BFD_RELOC_NONE
}
1984 return BFD_RELOC_NONE
;
1986 for (ch
= *str
, str2
= ident
;
1987 (str2
< ident
+ sizeof (ident
) - 1
1988 && (ISALNUM (ch
) || ch
== '@'));
1991 *str2
++ = TOLOWER (ch
);
1998 for (ptr
= &mapping
[0]; ptr
->length
> 0; ptr
++)
1999 if (ch
== ptr
->string
[0]
2000 && len
== ptr
->length
2001 && memcmp (ident
, ptr
->string
, ptr
->length
) == 0
2002 && (ppc_obj64
? ptr
->valid64
: ptr
->valid32
))
2004 int reloc
= ptr
->reloc
;
2006 if (!ppc_obj64
&& exp_p
->X_add_number
!= 0)
2010 case BFD_RELOC_16_GOTOFF
:
2011 case BFD_RELOC_LO16_GOTOFF
:
2012 case BFD_RELOC_HI16_GOTOFF
:
2013 case BFD_RELOC_HI16_S_GOTOFF
:
2014 as_warn (_("identifier+constant@got means "
2015 "identifier@got+constant"));
2018 case BFD_RELOC_PPC_GOT_TLSGD16
:
2019 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
2020 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
2021 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
2022 case BFD_RELOC_PPC_GOT_TLSLD16
:
2023 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
2024 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
2025 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
2026 case BFD_RELOC_PPC_GOT_DTPREL16
:
2027 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
2028 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
2029 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
2030 case BFD_RELOC_PPC_GOT_TPREL16
:
2031 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
2032 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
2033 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
2034 as_bad (_("symbol+offset not supported for got tls"));
2039 /* Now check for identifier@suffix+constant. */
2040 if (*str
== '-' || *str
== '+')
2042 char *orig_line
= input_line_pointer
;
2043 expressionS new_exp
;
2045 input_line_pointer
= str
;
2046 expression (&new_exp
);
2047 if (new_exp
.X_op
== O_constant
)
2049 exp_p
->X_add_number
+= new_exp
.X_add_number
;
2050 str
= input_line_pointer
;
2053 if (&input_line_pointer
!= str_p
)
2054 input_line_pointer
= orig_line
;
2058 if (reloc
== (int) BFD_RELOC_PPC64_TOC
2059 && exp_p
->X_op
== O_symbol
2060 && strcmp (S_GET_NAME (exp_p
->X_add_symbol
), ".TOC.") == 0)
2062 /* Change the symbol so that the dummy .TOC. symbol can be
2063 omitted from the object file. */
2064 exp_p
->X_add_symbol
= &abs_symbol
;
2067 return (bfd_reloc_code_real_type
) reloc
;
2070 return BFD_RELOC_NONE
;
2073 /* Support @got, etc. on constants emitted via .short, .int etc. */
2075 bfd_reloc_code_real_type
2076 ppc_elf_parse_cons (expressionS
*exp
, unsigned int nbytes
)
2079 if (nbytes
>= 2 && *input_line_pointer
== '@')
2080 return ppc_elf_suffix (&input_line_pointer
, exp
);
2081 return BFD_RELOC_NONE
;
2084 /* Warn when emitting data to code sections, unless we are emitting
2085 a relocation that ld --ppc476-workaround uses to recognise data
2086 *and* there was an unconditional branch prior to the data. */
2089 ppc_elf_cons_fix_check (expressionS
*exp ATTRIBUTE_UNUSED
,
2090 unsigned int nbytes
, fixS
*fix
)
2093 && (now_seg
->flags
& SEC_CODE
) != 0
2096 || !(fix
->fx_r_type
== BFD_RELOC_32
2097 || fix
->fx_r_type
== BFD_RELOC_CTOR
2098 || fix
->fx_r_type
== BFD_RELOC_32_PCREL
)
2099 || !(last_seg
== now_seg
&& last_subseg
== now_subseg
)
2100 || !((last_insn
& (0x3f << 26)) == (18u << 26)
2101 || ((last_insn
& (0x3f << 26)) == (16u << 26)
2102 && (last_insn
& (0x14 << 21)) == (0x14 << 21))
2103 || ((last_insn
& (0x3f << 26)) == (19u << 26)
2104 && (last_insn
& (0x3ff << 1)) == (16u << 1)
2105 && (last_insn
& (0x14 << 21)) == (0x14 << 21)))))
2107 /* Flag that we've warned. */
2111 as_warn (_("data in executable section"));
2115 /* Solaris pseduo op to change to the .rodata section. */
2117 ppc_elf_rdata (int xxx
)
2119 char *save_line
= input_line_pointer
;
2120 static char section
[] = ".rodata\n";
2122 /* Just pretend this is .section .rodata */
2123 input_line_pointer
= section
;
2124 obj_elf_section (xxx
);
2126 input_line_pointer
= save_line
;
2129 /* Pseudo op to make file scope bss items. */
2131 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED
)
2144 name
= input_line_pointer
;
2145 c
= get_symbol_end ();
2147 /* just after name is now '\0'. */
2148 p
= input_line_pointer
;
2151 if (*input_line_pointer
!= ',')
2153 as_bad (_("expected comma after symbol-name: rest of line ignored."));
2154 ignore_rest_of_line ();
2158 input_line_pointer
++; /* skip ',' */
2159 if ((size
= get_absolute_expression ()) < 0)
2161 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
2162 ignore_rest_of_line ();
2166 /* The third argument to .lcomm is the alignment. */
2167 if (*input_line_pointer
!= ',')
2171 ++input_line_pointer
;
2172 align
= get_absolute_expression ();
2175 as_warn (_("ignoring bad alignment"));
2181 symbolP
= symbol_find_or_make (name
);
2184 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
2186 as_bad (_("ignoring attempt to re-define symbol `%s'."),
2187 S_GET_NAME (symbolP
));
2188 ignore_rest_of_line ();
2192 if (S_GET_VALUE (symbolP
) && S_GET_VALUE (symbolP
) != (valueT
) size
)
2194 as_bad (_("length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
2195 S_GET_NAME (symbolP
),
2196 (long) S_GET_VALUE (symbolP
),
2199 ignore_rest_of_line ();
2205 old_subsec
= now_subseg
;
2208 /* Convert to a power of 2 alignment. */
2209 for (align2
= 0; (align
& 1) == 0; align
>>= 1, ++align2
);
2212 as_bad (_("common alignment not a power of 2"));
2213 ignore_rest_of_line ();
2220 record_alignment (bss_section
, align2
);
2221 subseg_set (bss_section
, 1);
2223 frag_align (align2
, 0, 0);
2224 if (S_GET_SEGMENT (symbolP
) == bss_section
)
2225 symbol_get_frag (symbolP
)->fr_symbol
= 0;
2226 symbol_set_frag (symbolP
, frag_now
);
2227 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
, size
,
2230 S_SET_SIZE (symbolP
, size
);
2231 S_SET_SEGMENT (symbolP
, bss_section
);
2232 subseg_set (old_sec
, old_subsec
);
2233 demand_empty_rest_of_line ();
2236 /* Pseudo op to set symbol local entry point. */
2238 ppc_elf_localentry (int ignore ATTRIBUTE_UNUSED
)
2240 char *name
= input_line_pointer
;
2241 char c
= get_symbol_end ();
2246 elf_symbol_type
*elfsym
;
2248 p
= input_line_pointer
;
2251 if (*input_line_pointer
!= ',')
2254 as_bad (_("expected comma after name `%s' in .localentry directive"),
2257 ignore_rest_of_line ();
2260 input_line_pointer
++;
2262 if (exp
.X_op
== O_absent
)
2264 as_bad (_("missing expression in .localentry directive"));
2265 exp
.X_op
= O_constant
;
2266 exp
.X_add_number
= 0;
2269 sym
= symbol_find_or_make (name
);
2272 if (resolve_expression (&exp
)
2273 && exp
.X_op
== O_constant
)
2275 unsigned char encoded
= PPC64_SET_LOCAL_ENTRY_OFFSET (exp
.X_add_number
);
2277 if (exp
.X_add_number
!= (offsetT
) PPC64_LOCAL_ENTRY_OFFSET (encoded
))
2278 as_bad (_(".localentry expression for `%s' "
2279 "is not a valid power of 2"), S_GET_NAME (sym
));
2282 bfdsym
= symbol_get_bfdsym (sym
);
2283 elfsym
= elf_symbol_from (bfd_asymbol_bfd (bfdsym
), bfdsym
);
2284 gas_assert (elfsym
);
2285 elfsym
->internal_elf_sym
.st_other
&= ~STO_PPC64_LOCAL_MASK
;
2286 elfsym
->internal_elf_sym
.st_other
|= encoded
;
2287 if (ppc_abiversion
== 0)
2292 as_bad (_(".localentry expression for `%s' "
2293 "does not evaluate to a constant"), S_GET_NAME (sym
));
2295 demand_empty_rest_of_line ();
2298 /* Pseudo op to set ABI version. */
2300 ppc_elf_abiversion (int ignore ATTRIBUTE_UNUSED
)
2305 if (exp
.X_op
== O_absent
)
2307 as_bad (_("missing expression in .abiversion directive"));
2308 exp
.X_op
= O_constant
;
2309 exp
.X_add_number
= 0;
2312 if (resolve_expression (&exp
)
2313 && exp
.X_op
== O_constant
)
2314 ppc_abiversion
= exp
.X_add_number
;
2316 as_bad (_(".abiversion expression does not evaluate to a constant"));
2317 demand_empty_rest_of_line ();
2320 /* Set ABI version in output file. */
2324 if (ppc_obj64
&& ppc_abiversion
!= 0)
2326 elf_elfheader (stdoutput
)->e_flags
&= ~EF_PPC64_ABI
;
2327 elf_elfheader (stdoutput
)->e_flags
|= ppc_abiversion
& EF_PPC64_ABI
;
2331 /* Validate any relocations emitted for -mrelocatable, possibly adding
2332 fixups for word relocations in writable segments, so we can adjust
2335 ppc_elf_validate_fix (fixS
*fixp
, segT seg
)
2337 if (fixp
->fx_done
|| fixp
->fx_pcrel
)
2346 case SHLIB_MRELOCATABLE
:
2347 if (fixp
->fx_r_type
!= BFD_RELOC_16_GOTOFF
2348 && fixp
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
2349 && fixp
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
2350 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
2351 && fixp
->fx_r_type
!= BFD_RELOC_16_BASEREL
2352 && fixp
->fx_r_type
!= BFD_RELOC_LO16_BASEREL
2353 && fixp
->fx_r_type
!= BFD_RELOC_HI16_BASEREL
2354 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_BASEREL
2355 && (seg
->flags
& SEC_LOAD
) != 0
2356 && strcmp (segment_name (seg
), ".got2") != 0
2357 && strcmp (segment_name (seg
), ".dtors") != 0
2358 && strcmp (segment_name (seg
), ".ctors") != 0
2359 && strcmp (segment_name (seg
), ".fixup") != 0
2360 && strcmp (segment_name (seg
), ".gcc_except_table") != 0
2361 && strcmp (segment_name (seg
), ".eh_frame") != 0
2362 && strcmp (segment_name (seg
), ".ex_shared") != 0)
2364 if ((seg
->flags
& (SEC_READONLY
| SEC_CODE
)) != 0
2365 || fixp
->fx_r_type
!= BFD_RELOC_CTOR
)
2367 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
2368 _("relocation cannot be done when using -mrelocatable"));
2375 /* Prevent elf_frob_file_before_adjust removing a weak undefined
2376 function descriptor sym if the corresponding code sym is used. */
2379 ppc_frob_file_before_adjust (void)
2387 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
2394 name
= S_GET_NAME (symp
);
2398 if (! S_IS_WEAK (symp
)
2399 || S_IS_DEFINED (symp
))
2402 len
= strlen (name
) + 1;
2403 dotname
= xmalloc (len
+ 1);
2405 memcpy (dotname
+ 1, name
, len
);
2406 dotsym
= symbol_find_noref (dotname
, 1);
2408 if (dotsym
!= NULL
&& (symbol_used_p (dotsym
)
2409 || symbol_used_in_reloc_p (dotsym
)))
2410 symbol_mark_used (symp
);
2414 toc
= bfd_get_section_by_name (stdoutput
, ".toc");
2416 && toc_reloc_types
!= has_large_toc_reloc
2417 && bfd_section_size (stdoutput
, toc
) > 0x10000)
2418 as_warn (_("TOC section size exceeds 64k"));
2421 /* .TOC. used in an opd entry as .TOC.@tocbase doesn't need to be
2422 emitted. Other uses of .TOC. will cause the symbol to be marked
2423 with BSF_KEEP in md_apply_fix. */
2426 ppc_elf_adjust_symtab (void)
2431 symp
= symbol_find (".TOC.");
2434 asymbol
*bsym
= symbol_get_bfdsym (symp
);
2435 if ((bsym
->flags
& BSF_KEEP
) == 0)
2436 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
2440 #endif /* OBJ_ELF */
2445 * Summary of parse_toc_entry.
2447 * in: Input_line_pointer points to the '[' in one of:
2449 * [toc] [tocv] [toc32] [toc64]
2451 * Anything else is an error of one kind or another.
2454 * return value: success or failure
2455 * toc_kind: kind of toc reference
2456 * input_line_pointer:
2457 * success: first char after the ']'
2458 * failure: unchanged
2462 * [toc] - rv == success, toc_kind = default_toc
2463 * [tocv] - rv == success, toc_kind = data_in_toc
2464 * [toc32] - rv == success, toc_kind = must_be_32
2465 * [toc64] - rv == success, toc_kind = must_be_64
2469 enum toc_size_qualifier
2471 default_toc
, /* The toc cell constructed should be the system default size */
2472 data_in_toc
, /* This is a direct reference to a toc cell */
2473 must_be_32
, /* The toc cell constructed must be 32 bits wide */
2474 must_be_64
/* The toc cell constructed must be 64 bits wide */
2478 parse_toc_entry (enum toc_size_qualifier
*toc_kind
)
2483 enum toc_size_qualifier t
;
2485 /* Save the input_line_pointer. */
2486 start
= input_line_pointer
;
2488 /* Skip over the '[' , and whitespace. */
2489 ++input_line_pointer
;
2492 /* Find the spelling of the operand. */
2493 toc_spec
= input_line_pointer
;
2494 c
= get_symbol_end ();
2496 if (strcmp (toc_spec
, "toc") == 0)
2500 else if (strcmp (toc_spec
, "tocv") == 0)
2504 else if (strcmp (toc_spec
, "toc32") == 0)
2508 else if (strcmp (toc_spec
, "toc64") == 0)
2514 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec
);
2515 *input_line_pointer
= c
;
2516 input_line_pointer
= start
;
2520 /* Now find the ']'. */
2521 *input_line_pointer
= c
;
2523 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2524 c
= *input_line_pointer
++; /* input_line_pointer->past char in c. */
2528 as_bad (_("syntax error: expected `]', found `%c'"), c
);
2529 input_line_pointer
= start
;
2538 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
2539 /* See whether a symbol is in the TOC section. */
2542 ppc_is_toc_sym (symbolS
*sym
)
2545 return (symbol_get_tc (sym
)->symbol_class
== XMC_TC
2546 || symbol_get_tc (sym
)->symbol_class
== XMC_TC0
);
2549 const char *sname
= segment_name (S_GET_SEGMENT (sym
));
2551 return strcmp (sname
, ".toc") == 0;
2553 return strcmp (sname
, ".got") == 0;
2556 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
2560 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2562 ppc_apuinfo_section_add (unsigned int apu
, unsigned int version
)
2566 /* Check we don't already exist. */
2567 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
2568 if (ppc_apuinfo_list
[i
] == APUID (apu
, version
))
2571 if (ppc_apuinfo_num
== ppc_apuinfo_num_alloc
)
2573 if (ppc_apuinfo_num_alloc
== 0)
2575 ppc_apuinfo_num_alloc
= 4;
2576 ppc_apuinfo_list
= (unsigned long *)
2577 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2581 ppc_apuinfo_num_alloc
+= 4;
2582 ppc_apuinfo_list
= (unsigned long *) xrealloc (ppc_apuinfo_list
,
2583 sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2586 ppc_apuinfo_list
[ppc_apuinfo_num
++] = APUID (apu
, version
);
2592 /* We need to keep a list of fixups. We can't simply generate them as
2593 we go, because that would require us to first create the frag, and
2594 that would screw up references to ``.''. */
2600 bfd_reloc_code_real_type reloc
;
2603 #define MAX_INSN_FIXUPS (5)
2606 #define E_OR2I_INSN 0x7000C000
2607 #define E_AND2I_DOT_INSN 0x7000C800
2608 #define E_OR2IS_INSN 0x7000D000
2609 #define E_LIS_INSN 0x7000E000
2610 #define E_AND2IS_DOT_INSN 0x7000E800
2613 #define E_ADD2I_DOT_INSN 0x70008800
2614 #define E_ADD2IS_INSN 0x70009000
2615 #define E_CMP16I_INSN 0x70009800
2616 #define E_MULL2I_INSN 0x7000A000
2617 #define E_CMPL16I_INSN 0x7000A800
2618 #define E_CMPH16I_INSN 0x7000B000
2619 #define E_CMPHL16I_INSN 0x7000B800
2621 /* This routine is called for each instruction to be assembled. */
2624 md_assemble (char *str
)
2627 const struct powerpc_opcode
*opcode
;
2629 const unsigned char *opindex_ptr
;
2633 struct ppc_fixup fixups
[MAX_INSN_FIXUPS
];
2638 unsigned int insn_length
;
2640 /* Get the opcode. */
2641 for (s
= str
; *s
!= '\0' && ! ISSPACE (*s
); s
++)
2646 /* Look up the opcode in the hash table. */
2647 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, str
);
2648 if (opcode
== (const struct powerpc_opcode
*) NULL
)
2650 const struct powerpc_macro
*macro
;
2652 macro
= (const struct powerpc_macro
*) hash_find (ppc_macro_hash
, str
);
2653 if (macro
== (const struct powerpc_macro
*) NULL
)
2654 as_bad (_("unrecognized opcode: `%s'"), str
);
2656 ppc_macro (s
, macro
);
2661 insn
= opcode
->opcode
;
2664 while (ISSPACE (*str
))
2667 /* PowerPC operands are just expressions. The only real issue is
2668 that a few operand types are optional. All cases which might use
2669 an optional operand separate the operands only with commas (in some
2670 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2671 have optional operands). Most instructions with optional operands
2672 have only one. Those that have more than one optional operand can
2673 take either all their operands or none. So, before we start seriously
2674 parsing the operands, we check to see if we have optional operands,
2675 and if we do, we count the number of commas to see which operands
2676 have been omitted. */
2678 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2680 const struct powerpc_operand
*operand
;
2682 operand
= &powerpc_operands
[*opindex_ptr
];
2683 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0)
2685 unsigned int opcount
;
2686 unsigned int num_operands_expected
;
2688 /* There is an optional operand. Count the number of
2689 commas in the input line. */
2696 while ((s
= strchr (s
, ',')) != (char *) NULL
)
2703 /* Compute the number of expected operands.
2704 Do not count fake operands. */
2705 for (num_operands_expected
= 0, i
= 0; opcode
->operands
[i
]; i
++)
2706 if ((powerpc_operands
[opcode
->operands
[i
]].flags
& PPC_OPERAND_FAKE
) == 0)
2707 ++ num_operands_expected
;
2709 /* If there are fewer operands in the line then are called
2710 for by the instruction, we want to skip the optional
2712 if (opcount
< num_operands_expected
)
2719 /* Gather the operands. */
2723 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2725 const struct powerpc_operand
*operand
;
2731 if (next_opindex
== 0)
2732 operand
= &powerpc_operands
[*opindex_ptr
];
2735 operand
= &powerpc_operands
[next_opindex
];
2740 /* If this is a fake operand, then we do not expect anything
2742 if ((operand
->flags
& PPC_OPERAND_FAKE
) != 0)
2744 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2745 if (errmsg
!= (const char *) NULL
)
2746 as_bad ("%s", errmsg
);
2750 /* If this is an optional operand, and we are skipping it, just
2752 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0
2755 if (operand
->insert
)
2757 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2758 if (errmsg
!= (const char *) NULL
)
2759 as_bad ("%s", errmsg
);
2761 if ((operand
->flags
& PPC_OPERAND_NEXT
) != 0)
2762 next_opindex
= *opindex_ptr
+ 1;
2766 /* Gather the operand. */
2767 hold
= input_line_pointer
;
2768 input_line_pointer
= str
;
2771 if (*input_line_pointer
== '[')
2773 /* We are expecting something like the second argument here:
2775 * lwz r4,[toc].GS.0.static_int(rtoc)
2776 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2777 * The argument following the `]' must be a symbol name, and the
2778 * register must be the toc register: 'rtoc' or '2'
2780 * The effect is to 0 as the displacement field
2781 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2782 * the appropriate variation) reloc against it based on the symbol.
2783 * The linker will build the toc, and insert the resolved toc offset.
2786 * o The size of the toc entry is currently assumed to be
2787 * 32 bits. This should not be assumed to be a hard coded
2789 * o In an effort to cope with a change from 32 to 64 bits,
2790 * there are also toc entries that are specified to be
2791 * either 32 or 64 bits:
2792 * lwz r4,[toc32].GS.0.static_int(rtoc)
2793 * lwz r4,[toc64].GS.0.static_int(rtoc)
2794 * These demand toc entries of the specified size, and the
2795 * instruction probably requires it.
2799 enum toc_size_qualifier toc_kind
;
2800 bfd_reloc_code_real_type toc_reloc
;
2802 /* Go parse off the [tocXX] part. */
2803 valid_toc
= parse_toc_entry (&toc_kind
);
2807 ignore_rest_of_line ();
2811 /* Now get the symbol following the ']'. */
2817 /* In this case, we may not have seen the symbol yet,
2818 since it is allowed to appear on a .extern or .globl
2819 or just be a label in the .data section. */
2820 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2823 /* 1. The symbol must be defined and either in the toc
2824 section, or a global.
2825 2. The reloc generated must have the TOCDEFN flag set
2826 in upper bit mess of the reloc type.
2827 FIXME: It's a little confusing what the tocv
2828 qualifier can be used for. At the very least, I've
2829 seen three uses, only one of which I'm sure I can
2831 if (ex
.X_op
== O_symbol
)
2833 gas_assert (ex
.X_add_symbol
!= NULL
);
2834 if (symbol_get_bfdsym (ex
.X_add_symbol
)->section
2837 as_bad (_("[tocv] symbol is not a toc symbol"));
2841 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2844 /* FIXME: these next two specifically specify 32/64 bit
2845 toc entries. We don't support them today. Is this
2846 the right way to say that? */
2847 toc_reloc
= BFD_RELOC_NONE
;
2848 as_bad (_("unimplemented toc32 expression modifier"));
2851 /* FIXME: see above. */
2852 toc_reloc
= BFD_RELOC_NONE
;
2853 as_bad (_("unimplemented toc64 expression modifier"));
2857 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2863 /* We need to generate a fixup for this expression. */
2864 if (fc
>= MAX_INSN_FIXUPS
)
2865 as_fatal (_("too many fixups"));
2867 fixups
[fc
].reloc
= toc_reloc
;
2868 fixups
[fc
].exp
= ex
;
2869 fixups
[fc
].opindex
= *opindex_ptr
;
2872 /* Ok. We've set up the fixup for the instruction. Now make it
2873 look like the constant 0 was found here. */
2875 ex
.X_op
= O_constant
;
2876 ex
.X_add_number
= 0;
2877 ex
.X_add_symbol
= NULL
;
2878 ex
.X_op_symbol
= NULL
;
2885 && (((operand
->flags
& PPC_OPERAND_CR_BIT
) != 0)
2886 || ((operand
->flags
& PPC_OPERAND_CR_REG
) != 0)))
2887 || !register_name (&ex
))
2889 char save_lex
= lex_type
['%'];
2891 if (((operand
->flags
& PPC_OPERAND_CR_REG
) != 0)
2892 || (operand
->flags
& PPC_OPERAND_CR_BIT
) != 0)
2895 lex_type
['%'] |= LEX_BEGIN_NAME
;
2899 lex_type
['%'] = save_lex
;
2903 str
= input_line_pointer
;
2904 input_line_pointer
= hold
;
2906 if (ex
.X_op
== O_illegal
)
2907 as_bad (_("illegal operand"));
2908 else if (ex
.X_op
== O_absent
)
2909 as_bad (_("missing operand"));
2910 else if (ex
.X_op
== O_register
)
2912 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2913 ppc_cpu
, (char *) NULL
, 0);
2915 else if (ex
.X_op
== O_constant
)
2918 /* Allow @HA, @L, @H on constants. */
2919 bfd_reloc_code_real_type reloc
;
2920 char *orig_str
= str
;
2922 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_NONE
)
2929 case BFD_RELOC_LO16
:
2930 ex
.X_add_number
&= 0xffff;
2931 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2932 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2935 case BFD_RELOC_HI16
:
2936 if (REPORT_OVERFLOW_HI
&& ppc_obj64
)
2938 /* PowerPC64 @h is tested for overflow. */
2939 ex
.X_add_number
= (addressT
) ex
.X_add_number
>> 16;
2940 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2942 addressT sign
= (((addressT
) -1 >> 16) + 1) >> 1;
2944 = ((addressT
) ex
.X_add_number
^ sign
) - sign
;
2950 case BFD_RELOC_PPC64_ADDR16_HIGH
:
2951 ex
.X_add_number
= PPC_HI (ex
.X_add_number
);
2952 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2953 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2956 case BFD_RELOC_HI16_S
:
2957 if (REPORT_OVERFLOW_HI
&& ppc_obj64
)
2959 /* PowerPC64 @ha is tested for overflow. */
2961 = ((addressT
) ex
.X_add_number
+ 0x8000) >> 16;
2962 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2964 addressT sign
= (((addressT
) -1 >> 16) + 1) >> 1;
2966 = ((addressT
) ex
.X_add_number
^ sign
) - sign
;
2972 case BFD_RELOC_PPC64_ADDR16_HIGHA
:
2973 ex
.X_add_number
= PPC_HA (ex
.X_add_number
);
2974 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2975 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2978 case BFD_RELOC_PPC64_HIGHER
:
2979 ex
.X_add_number
= PPC_HIGHER (ex
.X_add_number
);
2980 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2981 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2984 case BFD_RELOC_PPC64_HIGHER_S
:
2985 ex
.X_add_number
= PPC_HIGHERA (ex
.X_add_number
);
2986 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2987 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2990 case BFD_RELOC_PPC64_HIGHEST
:
2991 ex
.X_add_number
= PPC_HIGHEST (ex
.X_add_number
);
2992 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2993 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2996 case BFD_RELOC_PPC64_HIGHEST_S
:
2997 ex
.X_add_number
= PPC_HIGHESTA (ex
.X_add_number
);
2998 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
2999 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
3002 #endif /* OBJ_ELF */
3003 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
3004 ppc_cpu
, (char *) NULL
, 0);
3008 bfd_reloc_code_real_type reloc
= BFD_RELOC_NONE
;
3010 if (ex
.X_op
== O_symbol
&& str
[0] == '(')
3012 const char *sym_name
= S_GET_NAME (ex
.X_add_symbol
);
3013 if (sym_name
[0] == '.')
3016 if (strcasecmp (sym_name
, "__tls_get_addr") == 0)
3018 expressionS tls_exp
;
3020 hold
= input_line_pointer
;
3021 input_line_pointer
= str
+ 1;
3022 expression (&tls_exp
);
3023 if (tls_exp
.X_op
== O_symbol
)
3025 reloc
= BFD_RELOC_NONE
;
3026 if (strncasecmp (input_line_pointer
, "@tlsgd)", 7) == 0)
3028 reloc
= BFD_RELOC_PPC_TLSGD
;
3029 input_line_pointer
+= 7;
3031 else if (strncasecmp (input_line_pointer
, "@tlsld)", 7) == 0)
3033 reloc
= BFD_RELOC_PPC_TLSLD
;
3034 input_line_pointer
+= 7;
3036 if (reloc
!= BFD_RELOC_NONE
)
3039 str
= input_line_pointer
;
3041 if (fc
>= MAX_INSN_FIXUPS
)
3042 as_fatal (_("too many fixups"));
3043 fixups
[fc
].exp
= tls_exp
;
3044 fixups
[fc
].opindex
= *opindex_ptr
;
3045 fixups
[fc
].reloc
= reloc
;
3049 input_line_pointer
= hold
;
3053 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_NONE
)
3055 /* Some TLS tweaks. */
3061 case BFD_RELOC_PPC_TLS
:
3062 if (!_bfd_elf_ppc_at_tls_transform (opcode
->opcode
, 0))
3063 as_bad (_("@tls may not be used with \"%s\" operands"),
3065 else if (operand
->shift
!= 11)
3066 as_bad (_("@tls may only be used in last operand"));
3068 insn
= ppc_insert_operand (insn
, operand
,
3070 ppc_cpu
, (char *) NULL
, 0);
3073 /* We'll only use the 32 (or 64) bit form of these relocations
3074 in constants. Instructions get the 16 bit form. */
3075 case BFD_RELOC_PPC_DTPREL
:
3076 reloc
= BFD_RELOC_PPC_DTPREL16
;
3078 case BFD_RELOC_PPC_TPREL
:
3079 reloc
= BFD_RELOC_PPC_TPREL16
;
3083 /* If VLE-mode convert LO/HI/HA relocations. */
3084 if (opcode
->flags
& PPC_OPCODE_VLE
)
3086 int tmp_insn
= insn
& opcode
->mask
;
3088 int use_d_reloc
= (tmp_insn
== E_OR2I_INSN
3089 || tmp_insn
== E_AND2I_DOT_INSN
3090 || tmp_insn
== E_OR2IS_INSN
3091 || tmp_insn
== E_LIS_INSN
3092 || tmp_insn
== E_AND2IS_DOT_INSN
);
3095 int use_a_reloc
= (tmp_insn
== E_ADD2I_DOT_INSN
3096 || tmp_insn
== E_ADD2IS_INSN
3097 || tmp_insn
== E_CMP16I_INSN
3098 || tmp_insn
== E_MULL2I_INSN
3099 || tmp_insn
== E_CMPL16I_INSN
3100 || tmp_insn
== E_CMPH16I_INSN
3101 || tmp_insn
== E_CMPHL16I_INSN
);
3108 case BFD_RELOC_PPC_EMB_SDA21
:
3109 reloc
= BFD_RELOC_PPC_VLE_SDA21
;
3112 case BFD_RELOC_LO16
:
3114 reloc
= BFD_RELOC_PPC_VLE_LO16D
;
3115 else if (use_a_reloc
)
3116 reloc
= BFD_RELOC_PPC_VLE_LO16A
;
3119 case BFD_RELOC_HI16
:
3121 reloc
= BFD_RELOC_PPC_VLE_HI16D
;
3122 else if (use_a_reloc
)
3123 reloc
= BFD_RELOC_PPC_VLE_HI16A
;
3126 case BFD_RELOC_HI16_S
:
3128 reloc
= BFD_RELOC_PPC_VLE_HA16D
;
3129 else if (use_a_reloc
)
3130 reloc
= BFD_RELOC_PPC_VLE_HA16A
;
3133 case BFD_RELOC_PPC_VLE_SDAREL_LO16A
:
3135 reloc
= BFD_RELOC_PPC_VLE_SDAREL_LO16D
;
3138 case BFD_RELOC_PPC_VLE_SDAREL_HI16A
:
3140 reloc
= BFD_RELOC_PPC_VLE_SDAREL_HI16D
;
3143 case BFD_RELOC_PPC_VLE_SDAREL_HA16A
:
3145 reloc
= BFD_RELOC_PPC_VLE_SDAREL_HA16D
;
3150 #endif /* OBJ_ELF */
3152 if (reloc
!= BFD_RELOC_NONE
)
3154 /* Determine a BFD reloc value based on the operand information.
3155 We are only prepared to turn a few of the operands into
3157 else if ((operand
->flags
& (PPC_OPERAND_RELATIVE
3158 | PPC_OPERAND_ABSOLUTE
)) != 0
3159 && operand
->bitm
== 0x3fffffc
3160 && operand
->shift
== 0)
3161 reloc
= BFD_RELOC_PPC_B26
;
3162 else if ((operand
->flags
& (PPC_OPERAND_RELATIVE
3163 | PPC_OPERAND_ABSOLUTE
)) != 0
3164 && operand
->bitm
== 0xfffc
3165 && operand
->shift
== 0)
3166 reloc
= BFD_RELOC_PPC_B16
;
3167 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
3168 && operand
->bitm
== 0x1fe
3169 && operand
->shift
== -1)
3170 reloc
= BFD_RELOC_PPC_VLE_REL8
;
3171 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
3172 && operand
->bitm
== 0xfffe
3173 && operand
->shift
== 0)
3174 reloc
= BFD_RELOC_PPC_VLE_REL15
;
3175 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
3176 && operand
->bitm
== 0x1fffffe
3177 && operand
->shift
== 0)
3178 reloc
= BFD_RELOC_PPC_VLE_REL24
;
3179 else if ((operand
->flags
& PPC_OPERAND_NEGATIVE
) == 0
3180 && (operand
->bitm
& 0xfff0) == 0xfff0
3181 && operand
->shift
== 0)
3183 reloc
= BFD_RELOC_16
;
3184 #if defined OBJ_XCOFF || defined OBJ_ELF
3185 /* Note: the symbol may be not yet defined. */
3186 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
3187 && ppc_is_toc_sym (ex
.X_add_symbol
))
3189 reloc
= BFD_RELOC_PPC_TOC16
;
3191 as_warn (_("assuming %s on symbol"),
3192 ppc_obj64
? "@toc" : "@xgot");
3198 /* For the absolute forms of branches, convert the PC
3199 relative form back into the absolute. */
3200 if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0)
3204 case BFD_RELOC_PPC_B26
:
3205 reloc
= BFD_RELOC_PPC_BA26
;
3207 case BFD_RELOC_PPC_B16
:
3208 reloc
= BFD_RELOC_PPC_BA16
;
3211 case BFD_RELOC_PPC_B16_BRTAKEN
:
3212 reloc
= BFD_RELOC_PPC_BA16_BRTAKEN
;
3214 case BFD_RELOC_PPC_B16_BRNTAKEN
:
3215 reloc
= BFD_RELOC_PPC_BA16_BRNTAKEN
;
3226 case BFD_RELOC_PPC_TOC16
:
3227 toc_reloc_types
|= has_small_toc_reloc
;
3229 case BFD_RELOC_PPC64_TOC16_LO
:
3230 case BFD_RELOC_PPC64_TOC16_HI
:
3231 case BFD_RELOC_PPC64_TOC16_HA
:
3232 toc_reloc_types
|= has_large_toc_reloc
;
3239 && (operand
->flags
& (PPC_OPERAND_DS
| PPC_OPERAND_DQ
)) != 0)
3244 reloc
= BFD_RELOC_PPC64_ADDR16_DS
;
3246 case BFD_RELOC_LO16
:
3247 reloc
= BFD_RELOC_PPC64_ADDR16_LO_DS
;
3249 case BFD_RELOC_16_GOTOFF
:
3250 reloc
= BFD_RELOC_PPC64_GOT16_DS
;
3252 case BFD_RELOC_LO16_GOTOFF
:
3253 reloc
= BFD_RELOC_PPC64_GOT16_LO_DS
;
3255 case BFD_RELOC_LO16_PLTOFF
:
3256 reloc
= BFD_RELOC_PPC64_PLT16_LO_DS
;
3258 case BFD_RELOC_16_BASEREL
:
3259 reloc
= BFD_RELOC_PPC64_SECTOFF_DS
;
3261 case BFD_RELOC_LO16_BASEREL
:
3262 reloc
= BFD_RELOC_PPC64_SECTOFF_LO_DS
;
3264 case BFD_RELOC_PPC_TOC16
:
3265 reloc
= BFD_RELOC_PPC64_TOC16_DS
;
3267 case BFD_RELOC_PPC64_TOC16_LO
:
3268 reloc
= BFD_RELOC_PPC64_TOC16_LO_DS
;
3270 case BFD_RELOC_PPC64_PLTGOT16
:
3271 reloc
= BFD_RELOC_PPC64_PLTGOT16_DS
;
3273 case BFD_RELOC_PPC64_PLTGOT16_LO
:
3274 reloc
= BFD_RELOC_PPC64_PLTGOT16_LO_DS
;
3276 case BFD_RELOC_PPC_DTPREL16
:
3277 reloc
= BFD_RELOC_PPC64_DTPREL16_DS
;
3279 case BFD_RELOC_PPC_DTPREL16_LO
:
3280 reloc
= BFD_RELOC_PPC64_DTPREL16_LO_DS
;
3282 case BFD_RELOC_PPC_TPREL16
:
3283 reloc
= BFD_RELOC_PPC64_TPREL16_DS
;
3285 case BFD_RELOC_PPC_TPREL16_LO
:
3286 reloc
= BFD_RELOC_PPC64_TPREL16_LO_DS
;
3288 case BFD_RELOC_PPC_GOT_DTPREL16
:
3289 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
3290 case BFD_RELOC_PPC_GOT_TPREL16
:
3291 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
3294 as_bad (_("unsupported relocation for DS offset field"));
3300 /* We need to generate a fixup for this expression. */
3301 if (fc
>= MAX_INSN_FIXUPS
)
3302 as_fatal (_("too many fixups"));
3303 fixups
[fc
].exp
= ex
;
3304 fixups
[fc
].opindex
= *opindex_ptr
;
3305 fixups
[fc
].reloc
= reloc
;
3313 /* If expecting more operands, then we want to see "),". */
3314 if (*str
== endc
&& opindex_ptr
[1] != 0)
3318 while (ISSPACE (*str
));
3322 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0)
3330 /* The call to expression should have advanced str past any
3333 && (endc
!= ',' || *str
!= '\0'))
3336 as_bad (_("syntax error; end of line, expected `%c'"), endc
);
3338 as_bad (_("syntax error; found `%c', expected `%c'"), *str
, endc
);
3346 while (ISSPACE (*str
))
3350 as_bad (_("junk at end of line: `%s'"), str
);
3353 /* Do we need/want an APUinfo section? */
3354 if ((ppc_cpu
& (PPC_OPCODE_E500
| PPC_OPCODE_E500MC
| PPC_OPCODE_VLE
)) != 0
3357 /* These are all version "1". */
3358 if (opcode
->flags
& PPC_OPCODE_SPE
)
3359 ppc_apuinfo_section_add (PPC_APUINFO_SPE
, 1);
3360 if (opcode
->flags
& PPC_OPCODE_ISEL
)
3361 ppc_apuinfo_section_add (PPC_APUINFO_ISEL
, 1);
3362 if (opcode
->flags
& PPC_OPCODE_EFS
)
3363 ppc_apuinfo_section_add (PPC_APUINFO_EFS
, 1);
3364 if (opcode
->flags
& PPC_OPCODE_BRLOCK
)
3365 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK
, 1);
3366 if (opcode
->flags
& PPC_OPCODE_PMR
)
3367 ppc_apuinfo_section_add (PPC_APUINFO_PMR
, 1);
3368 if (opcode
->flags
& PPC_OPCODE_CACHELCK
)
3369 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK
, 1);
3370 if (opcode
->flags
& PPC_OPCODE_RFMCI
)
3371 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI
, 1);
3372 /* Only set the VLE flag if the instruction has been pulled via
3373 the VLE instruction set. This way the flag is guaranteed to
3374 be set for VLE-only instructions or for VLE-only processors,
3375 however it'll remain clear for dual-mode instructions on
3376 dual-mode and, more importantly, standard-mode processors. */
3377 if ((ppc_cpu
& opcode
->flags
) == PPC_OPCODE_VLE
)
3378 ppc_apuinfo_section_add (PPC_APUINFO_VLE
, 1);
3382 /* Write out the instruction. */
3383 /* Differentiate between two and four byte insns. */
3384 if (ppc_mach () == bfd_mach_ppc_vle
)
3386 if (PPC_OP_SE_VLE (insn
))
3390 addr_mod
= frag_now_fix () & 1;
3395 addr_mod
= frag_now_fix () & 3;
3397 /* All instructions can start on a 2 byte boundary for VLE. */
3398 f
= frag_more (insn_length
);
3399 if (frag_now
->has_code
&& frag_now
->insn_addr
!= addr_mod
)
3401 if (ppc_mach() == bfd_mach_ppc_vle
)
3402 as_bad (_("instruction address is not a multiple of 2"));
3404 as_bad (_("instruction address is not a multiple of 4"));
3406 frag_now
->insn_addr
= addr_mod
;
3407 frag_now
->has_code
= 1;
3408 md_number_to_chars (f
, insn
, insn_length
);
3411 last_subseg
= now_subseg
;
3414 dwarf2_emit_insn (insn_length
);
3417 /* Create any fixups. */
3418 for (i
= 0; i
< fc
; i
++)
3421 if (fixups
[i
].reloc
!= BFD_RELOC_NONE
)
3423 reloc_howto_type
*reloc_howto
;
3427 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
3431 size
= bfd_get_reloc_size (reloc_howto
);
3432 offset
= target_big_endian
? (insn_length
- size
) : 0;
3434 fixP
= fix_new_exp (frag_now
,
3435 f
- frag_now
->fr_literal
+ offset
,
3438 reloc_howto
->pc_relative
,
3443 const struct powerpc_operand
*operand
;
3445 operand
= &powerpc_operands
[fixups
[i
].opindex
];
3446 fixP
= fix_new_exp (frag_now
,
3447 f
- frag_now
->fr_literal
,
3450 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
3453 fixP
->fx_pcrel_adjust
= fixups
[i
].opindex
;
3457 /* Handle a macro. Gather all the operands, transform them as
3458 described by the macro, and call md_assemble recursively. All the
3459 operands are separated by commas; we don't accept parentheses
3460 around operands here. */
3463 ppc_macro (char *str
, const struct powerpc_macro
*macro
)
3474 /* Gather the users operands into the operands array. */
3479 if (count
>= sizeof operands
/ sizeof operands
[0])
3481 operands
[count
++] = s
;
3482 s
= strchr (s
, ',');
3483 if (s
== (char *) NULL
)
3488 if (count
!= macro
->operands
)
3490 as_bad (_("wrong number of operands"));
3494 /* Work out how large the string must be (the size is unbounded
3495 because it includes user input). */
3497 format
= macro
->format
;
3498 while (*format
!= '\0')
3507 arg
= strtol (format
+ 1, &send
, 10);
3508 know (send
!= format
&& arg
< count
);
3509 len
+= strlen (operands
[arg
]);
3514 /* Put the string together. */
3515 complete
= s
= (char *) alloca (len
+ 1);
3516 format
= macro
->format
;
3517 while (*format
!= '\0')
3523 arg
= strtol (format
+ 1, &send
, 10);
3524 strcpy (s
, operands
[arg
]);
3531 /* Assemble the constructed instruction. */
3532 md_assemble (complete
);
3536 /* For ELF, add support for SHT_ORDERED. */
3539 ppc_section_type (char *str
, size_t len
)
3541 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
3548 ppc_section_flags (flagword flags
, bfd_vma attr ATTRIBUTE_UNUSED
, int type
)
3550 if (type
== SHT_ORDERED
)
3551 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
3555 #endif /* OBJ_ELF */
3558 /* Pseudo-op handling. */
3560 /* The .byte pseudo-op. This is similar to the normal .byte
3561 pseudo-op, but it can also take a single ASCII string. */
3564 ppc_byte (int ignore ATTRIBUTE_UNUSED
)
3568 if (*input_line_pointer
!= '\"')
3574 /* Gather characters. A real double quote is doubled. Unusual
3575 characters are not permitted. */
3576 ++input_line_pointer
;
3581 c
= *input_line_pointer
++;
3585 if (*input_line_pointer
!= '\"')
3587 ++input_line_pointer
;
3590 FRAG_APPEND_1_CHAR (c
);
3594 if (warn_476
&& count
!= 0 && (now_seg
->flags
& SEC_CODE
) != 0)
3595 as_warn (_("data in executable section"));
3596 demand_empty_rest_of_line ();
3601 /* XCOFF specific pseudo-op handling. */
3603 /* This is set if we are creating a .stabx symbol, since we don't want
3604 to handle symbol suffixes for such symbols. */
3605 static bfd_boolean ppc_stab_symbol
;
3607 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
3608 symbols in the .bss segment as though they were local common
3609 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3610 aligns .comm and .lcomm to 4 bytes. */
3613 ppc_comm (int lcomm
)
3615 asection
*current_seg
= now_seg
;
3616 subsegT current_subseg
= now_subseg
;
3622 symbolS
*lcomm_sym
= NULL
;
3626 name
= input_line_pointer
;
3627 endc
= get_symbol_end ();
3628 end_name
= input_line_pointer
;
3631 if (*input_line_pointer
!= ',')
3633 as_bad (_("missing size"));
3634 ignore_rest_of_line ();
3637 ++input_line_pointer
;
3639 size
= get_absolute_expression ();
3642 as_bad (_("negative size"));
3643 ignore_rest_of_line ();
3649 /* The third argument to .comm is the alignment. */
3650 if (*input_line_pointer
!= ',')
3654 ++input_line_pointer
;
3655 align
= get_absolute_expression ();
3658 as_warn (_("ignoring bad alignment"));
3668 /* The third argument to .lcomm appears to be the real local
3669 common symbol to create. References to the symbol named in
3670 the first argument are turned into references to the third
3672 if (*input_line_pointer
!= ',')
3674 as_bad (_("missing real symbol name"));
3675 ignore_rest_of_line ();
3678 ++input_line_pointer
;
3680 lcomm_name
= input_line_pointer
;
3681 lcomm_endc
= get_symbol_end ();
3683 lcomm_sym
= symbol_find_or_make (lcomm_name
);
3685 *input_line_pointer
= lcomm_endc
;
3687 /* The fourth argument to .lcomm is the alignment. */
3688 if (*input_line_pointer
!= ',')
3697 ++input_line_pointer
;
3698 align
= get_absolute_expression ();
3701 as_warn (_("ignoring bad alignment"));
3708 sym
= symbol_find_or_make (name
);
3711 if (S_IS_DEFINED (sym
)
3712 || S_GET_VALUE (sym
) != 0)
3714 as_bad (_("attempt to redefine symbol"));
3715 ignore_rest_of_line ();
3719 record_alignment (bss_section
, align
);
3722 || ! S_IS_DEFINED (lcomm_sym
))
3731 S_SET_EXTERNAL (sym
);
3735 symbol_get_tc (lcomm_sym
)->output
= 1;
3736 def_sym
= lcomm_sym
;
3740 subseg_set (bss_section
, 1);
3741 frag_align (align
, 0, 0);
3743 symbol_set_frag (def_sym
, frag_now
);
3744 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
3745 def_size
, (char *) NULL
);
3747 S_SET_SEGMENT (def_sym
, bss_section
);
3748 symbol_get_tc (def_sym
)->align
= align
;
3752 /* Align the size of lcomm_sym. */
3753 symbol_get_frag (lcomm_sym
)->fr_offset
=
3754 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
3755 &~ ((1 << align
) - 1));
3756 if (align
> symbol_get_tc (lcomm_sym
)->align
)
3757 symbol_get_tc (lcomm_sym
)->align
= align
;
3762 /* Make sym an offset from lcomm_sym. */
3763 S_SET_SEGMENT (sym
, bss_section
);
3764 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
3765 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
3766 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
3769 subseg_set (current_seg
, current_subseg
);
3771 demand_empty_rest_of_line ();
3774 /* The .csect pseudo-op. This switches us into a different
3775 subsegment. The first argument is a symbol whose value is the
3776 start of the .csect. In COFF, csect symbols get special aux
3777 entries defined by the x_csect field of union internal_auxent. The
3778 optional second argument is the alignment (the default is 2). */
3781 ppc_csect (int ignore ATTRIBUTE_UNUSED
)
3788 name
= input_line_pointer
;
3789 endc
= get_symbol_end ();
3791 sym
= symbol_find_or_make (name
);
3793 *input_line_pointer
= endc
;
3795 if (S_GET_NAME (sym
)[0] == '\0')
3797 /* An unnamed csect is assumed to be [PR]. */
3798 symbol_get_tc (sym
)->symbol_class
= XMC_PR
;
3802 if (*input_line_pointer
== ',')
3804 ++input_line_pointer
;
3805 align
= get_absolute_expression ();
3808 ppc_change_csect (sym
, align
);
3810 demand_empty_rest_of_line ();
3813 /* Change to a different csect. */
3816 ppc_change_csect (symbolS
*sym
, offsetT align
)
3818 if (S_IS_DEFINED (sym
))
3819 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
3829 /* This is a new csect. We need to look at the symbol class to
3830 figure out whether it should go in the text section or the
3834 switch (symbol_get_tc (sym
)->symbol_class
)
3844 S_SET_SEGMENT (sym
, text_section
);
3845 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
3846 ++ppc_text_subsegment
;
3847 list_ptr
= &ppc_text_csects
;
3857 if (ppc_toc_csect
!= NULL
3858 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
3859 == ppc_data_subsegment
))
3861 S_SET_SEGMENT (sym
, data_section
);
3862 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
3863 ++ppc_data_subsegment
;
3864 list_ptr
= &ppc_data_csects
;
3870 /* We set the obstack chunk size to a small value before
3871 changing subsegments, so that we don't use a lot of memory
3872 space for what may be a small section. */
3873 hold_chunksize
= chunksize
;
3876 sec
= subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3877 symbol_get_tc (sym
)->subseg
);
3879 chunksize
= hold_chunksize
;
3882 ppc_after_toc_frag
= frag_now
;
3884 record_alignment (sec
, align
);
3886 frag_align_code (align
, 0);
3888 frag_align (align
, 0, 0);
3890 symbol_set_frag (sym
, frag_now
);
3891 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3893 symbol_get_tc (sym
)->align
= align
;
3894 symbol_get_tc (sym
)->output
= 1;
3895 symbol_get_tc (sym
)->within
= sym
;
3897 for (list
= *list_ptr
;
3898 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3899 list
= symbol_get_tc (list
)->next
)
3901 symbol_get_tc (list
)->next
= sym
;
3903 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3904 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3908 ppc_current_csect
= sym
;
3912 ppc_change_debug_section (unsigned int idx
, subsegT subseg
)
3916 const struct xcoff_dwsect_name
*dw
= &xcoff_dwsect_names
[idx
];
3918 sec
= subseg_new (dw
->name
, subseg
);
3919 oldflags
= bfd_get_section_flags (stdoutput
, sec
);
3920 if (oldflags
== SEC_NO_FLAGS
)
3922 /* Just created section. */
3923 gas_assert (dw_sections
[idx
].sect
== NULL
);
3925 bfd_set_section_flags (stdoutput
, sec
, SEC_DEBUGGING
);
3926 bfd_set_section_alignment (stdoutput
, sec
, 0);
3927 dw_sections
[idx
].sect
= sec
;
3930 /* Not anymore in a csect. */
3931 ppc_current_csect
= NULL
;
3934 /* The .dwsect pseudo-op. Defines a DWARF section. Syntax is:
3935 .dwsect flag [, opt-label ]
3939 ppc_dwsect (int ignore ATTRIBUTE_UNUSED
)
3943 const struct xcoff_dwsect_name
*dw
;
3944 struct dw_subsection
*subseg
;
3945 struct dw_section
*dws
;
3949 flag
= get_absolute_expression ();
3951 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
3952 if (xcoff_dwsect_names
[i
].flag
== flag
)
3954 dw
= &xcoff_dwsect_names
[i
];
3958 /* Parse opt-label. */
3959 if (*input_line_pointer
== ',')
3964 ++input_line_pointer
;
3966 label
= input_line_pointer
;
3967 c
= get_symbol_end ();
3968 opt_label
= symbol_find_or_make (label
);
3969 *input_line_pointer
= c
;
3974 demand_empty_rest_of_line ();
3976 /* Return now in case of unknown subsection. */
3979 as_bad (_("no known dwarf XCOFF section for flag 0x%08x\n"),
3984 /* Find the subsection. */
3985 dws
= &dw_sections
[i
];
3987 if (opt_label
!= NULL
&& S_IS_DEFINED (opt_label
))
3989 /* Sanity check (note that in theory S_GET_SEGMENT mustn't be null). */
3990 if (dws
->sect
== NULL
|| S_GET_SEGMENT (opt_label
) != dws
->sect
)
3992 as_bad (_("label %s was not defined in this dwarf section"),
3993 S_GET_NAME (opt_label
));
3994 subseg
= dws
->anon_subseg
;
3998 subseg
= symbol_get_tc (opt_label
)->u
.dw
;
4003 /* Switch to the subsection. */
4004 ppc_change_debug_section (i
, subseg
->subseg
);
4008 /* Create a new dw subsection. */
4009 subseg
= (struct dw_subsection
*)
4010 xmalloc (sizeof (struct dw_subsection
));
4012 if (opt_label
== NULL
)
4014 /* The anonymous one. */
4016 subseg
->link
= NULL
;
4017 dws
->anon_subseg
= subseg
;
4022 if (dws
->list_subseg
!= NULL
)
4023 subseg
->subseg
= dws
->list_subseg
->subseg
+ 1;
4027 subseg
->link
= dws
->list_subseg
;
4028 dws
->list_subseg
= subseg
;
4029 symbol_get_tc (opt_label
)->u
.dw
= subseg
;
4032 ppc_change_debug_section (i
, subseg
->subseg
);
4036 /* Add the length field. */
4037 expressionS
*exp
= &subseg
->end_exp
;
4040 if (opt_label
!= NULL
)
4041 symbol_set_value_now (opt_label
);
4043 /* Add the length field. Note that according to the AIX assembler
4044 manual, the size of the length field is 4 for powerpc32 but
4045 12 for powerpc64. */
4048 /* Write the 64bit marker. */
4049 md_number_to_chars (frag_more (4), -1, 4);
4052 exp
->X_op
= O_subtract
;
4053 exp
->X_op_symbol
= symbol_temp_new_now ();
4054 exp
->X_add_symbol
= symbol_temp_make ();
4056 sz
= ppc_obj64
? 8 : 4;
4057 exp
->X_add_number
= -sz
;
4058 emit_expr (exp
, sz
);
4063 /* This function handles the .text and .data pseudo-ops. These
4064 pseudo-ops aren't really used by XCOFF; we implement them for the
4065 convenience of people who aren't used to XCOFF. */
4068 ppc_section (int type
)
4075 else if (type
== 'd')
4080 sym
= symbol_find_or_make (name
);
4082 ppc_change_csect (sym
, 2);
4084 demand_empty_rest_of_line ();
4087 /* This function handles the .section pseudo-op. This is mostly to
4088 give an error, since XCOFF only supports .text, .data and .bss, but
4089 we do permit the user to name the text or data section. */
4092 ppc_named_section (int ignore ATTRIBUTE_UNUSED
)
4095 const char *real_name
;
4099 user_name
= input_line_pointer
;
4100 c
= get_symbol_end ();
4102 if (strcmp (user_name
, ".text") == 0)
4103 real_name
= ".text[PR]";
4104 else if (strcmp (user_name
, ".data") == 0)
4105 real_name
= ".data[RW]";
4108 as_bad (_("the XCOFF file format does not support arbitrary sections"));
4109 *input_line_pointer
= c
;
4110 ignore_rest_of_line ();
4114 *input_line_pointer
= c
;
4116 sym
= symbol_find_or_make (real_name
);
4118 ppc_change_csect (sym
, 2);
4120 demand_empty_rest_of_line ();
4123 /* The .extern pseudo-op. We create an undefined symbol. */
4126 ppc_extern (int ignore ATTRIBUTE_UNUSED
)
4131 name
= input_line_pointer
;
4132 endc
= get_symbol_end ();
4134 (void) symbol_find_or_make (name
);
4136 *input_line_pointer
= endc
;
4138 demand_empty_rest_of_line ();
4141 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
4144 ppc_lglobl (int ignore ATTRIBUTE_UNUSED
)
4150 name
= input_line_pointer
;
4151 endc
= get_symbol_end ();
4153 sym
= symbol_find_or_make (name
);
4155 *input_line_pointer
= endc
;
4157 symbol_get_tc (sym
)->output
= 1;
4159 demand_empty_rest_of_line ();
4162 /* The .ref pseudo-op. It takes a list of symbol names and inserts R_REF
4163 relocations at the beginning of the current csect.
4165 (In principle, there's no reason why the relocations _have_ to be at
4166 the beginning. Anywhere in the csect would do. However, inserting
4167 at the beginning is what the native assmebler does, and it helps to
4168 deal with cases where the .ref statements follow the section contents.)
4170 ??? .refs don't work for empty .csects. However, the native assembler
4171 doesn't report an error in this case, and neither yet do we. */
4174 ppc_ref (int ignore ATTRIBUTE_UNUSED
)
4179 if (ppc_current_csect
== NULL
)
4181 as_bad (_(".ref outside .csect"));
4182 ignore_rest_of_line ();
4188 name
= input_line_pointer
;
4189 c
= get_symbol_end ();
4191 fix_at_start (symbol_get_frag (ppc_current_csect
), 0,
4192 symbol_find_or_make (name
), 0, FALSE
, BFD_RELOC_NONE
);
4194 *input_line_pointer
= c
;
4196 c
= *input_line_pointer
;
4199 input_line_pointer
++;
4201 if (is_end_of_line
[(unsigned char) *input_line_pointer
])
4203 as_bad (_("missing symbol name"));
4204 ignore_rest_of_line ();
4211 demand_empty_rest_of_line ();
4214 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
4215 although I don't know why it bothers. */
4218 ppc_rename (int ignore ATTRIBUTE_UNUSED
)
4225 name
= input_line_pointer
;
4226 endc
= get_symbol_end ();
4228 sym
= symbol_find_or_make (name
);
4230 *input_line_pointer
= endc
;
4232 if (*input_line_pointer
!= ',')
4234 as_bad (_("missing rename string"));
4235 ignore_rest_of_line ();
4238 ++input_line_pointer
;
4240 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
4242 demand_empty_rest_of_line ();
4245 /* The .stabx pseudo-op. This is similar to a normal .stabs
4246 pseudo-op, but slightly different. A sample is
4247 .stabx "main:F-1",.main,142,0
4248 The first argument is the symbol name to create. The second is the
4249 value, and the third is the storage class. The fourth seems to be
4250 always zero, and I am assuming it is the type. */
4253 ppc_stabx (int ignore ATTRIBUTE_UNUSED
)
4260 name
= demand_copy_C_string (&len
);
4262 if (*input_line_pointer
!= ',')
4264 as_bad (_("missing value"));
4267 ++input_line_pointer
;
4269 ppc_stab_symbol
= TRUE
;
4270 sym
= symbol_make (name
);
4271 ppc_stab_symbol
= FALSE
;
4273 symbol_get_tc (sym
)->real_name
= name
;
4275 (void) expression (&exp
);
4282 as_bad (_("illegal .stabx expression; zero assumed"));
4283 exp
.X_add_number
= 0;
4286 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
4287 symbol_set_frag (sym
, &zero_address_frag
);
4291 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
4292 symbol_set_value_expression (sym
, &exp
);
4296 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
4297 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
4302 /* The value is some complex expression. This will probably
4303 fail at some later point, but this is probably the right
4304 thing to do here. */
4305 symbol_set_value_expression (sym
, &exp
);
4309 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
4310 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4312 if (*input_line_pointer
!= ',')
4314 as_bad (_("missing class"));
4317 ++input_line_pointer
;
4319 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
4321 if (*input_line_pointer
!= ',')
4323 as_bad (_("missing type"));
4326 ++input_line_pointer
;
4328 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
4330 symbol_get_tc (sym
)->output
= 1;
4332 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
4337 .stabx "z",arrays_,133,0
4340 .comm arrays_,13768,3
4342 resolve_symbol_value will copy the exp's "within" into sym's when the
4343 offset is 0. Since this seems to be corner case problem,
4344 only do the correction for storage class C_STSYM. A better solution
4345 would be to have the tc field updated in ppc_symbol_new_hook. */
4347 if (exp
.X_op
== O_symbol
)
4349 if (ppc_current_block
== NULL
)
4350 as_bad (_(".stabx of storage class stsym must be within .bs/.es"));
4352 symbol_get_tc (sym
)->within
= ppc_current_block
;
4353 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
4357 if (exp
.X_op
!= O_symbol
4358 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
4359 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
4360 ppc_frob_label (sym
);
4363 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4364 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
4365 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
4366 symbol_get_tc (ppc_current_csect
)->within
= sym
;
4369 demand_empty_rest_of_line ();
4372 /* The .function pseudo-op. This takes several arguments. The first
4373 argument seems to be the external name of the symbol. The second
4374 argument seems to be the label for the start of the function. gcc
4375 uses the same name for both. I have no idea what the third and
4376 fourth arguments are meant to be. The optional fifth argument is
4377 an expression for the size of the function. In COFF this symbol
4378 gets an aux entry like that used for a csect. */
4381 ppc_function (int ignore ATTRIBUTE_UNUSED
)
4389 name
= input_line_pointer
;
4390 endc
= get_symbol_end ();
4392 /* Ignore any [PR] suffix. */
4393 name
= ppc_canonicalize_symbol_name (name
);
4394 s
= strchr (name
, '[');
4395 if (s
!= (char *) NULL
4396 && strcmp (s
+ 1, "PR]") == 0)
4399 ext_sym
= symbol_find_or_make (name
);
4401 *input_line_pointer
= endc
;
4403 if (*input_line_pointer
!= ',')
4405 as_bad (_("missing symbol name"));
4406 ignore_rest_of_line ();
4409 ++input_line_pointer
;
4411 name
= input_line_pointer
;
4412 endc
= get_symbol_end ();
4414 lab_sym
= symbol_find_or_make (name
);
4416 *input_line_pointer
= endc
;
4418 if (ext_sym
!= lab_sym
)
4422 exp
.X_op
= O_symbol
;
4423 exp
.X_add_symbol
= lab_sym
;
4424 exp
.X_op_symbol
= NULL
;
4425 exp
.X_add_number
= 0;
4427 symbol_set_value_expression (ext_sym
, &exp
);
4430 if (symbol_get_tc (ext_sym
)->symbol_class
== -1)
4431 symbol_get_tc (ext_sym
)->symbol_class
= XMC_PR
;
4432 symbol_get_tc (ext_sym
)->output
= 1;
4434 if (*input_line_pointer
== ',')
4438 /* Ignore the third argument. */
4439 ++input_line_pointer
;
4441 if (*input_line_pointer
== ',')
4443 /* Ignore the fourth argument. */
4444 ++input_line_pointer
;
4446 if (*input_line_pointer
== ',')
4448 /* The fifth argument is the function size. */
4449 ++input_line_pointer
;
4450 symbol_get_tc (ext_sym
)->u
.size
= symbol_new
4451 ("L0\001", absolute_section
,(valueT
) 0, &zero_address_frag
);
4452 pseudo_set (symbol_get_tc (ext_sym
)->u
.size
);
4457 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4458 SF_SET_FUNCTION (ext_sym
);
4459 SF_SET_PROCESS (ext_sym
);
4460 coff_add_linesym (ext_sym
);
4462 demand_empty_rest_of_line ();
4465 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
4466 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
4467 with the correct line number */
4469 static symbolS
*saved_bi_sym
= 0;
4472 ppc_bf (int ignore ATTRIBUTE_UNUSED
)
4476 sym
= symbol_make (".bf");
4477 S_SET_SEGMENT (sym
, text_section
);
4478 symbol_set_frag (sym
, frag_now
);
4479 S_SET_VALUE (sym
, frag_now_fix ());
4480 S_SET_STORAGE_CLASS (sym
, C_FCN
);
4482 coff_line_base
= get_absolute_expression ();
4484 S_SET_NUMBER_AUXILIARY (sym
, 1);
4485 SA_SET_SYM_LNNO (sym
, coff_line_base
);
4487 /* Line number for bi. */
4490 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
4495 symbol_get_tc (sym
)->output
= 1;
4497 ppc_frob_label (sym
);
4499 demand_empty_rest_of_line ();
4502 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
4503 ".ef", except that the line number is absolute, not relative to the
4504 most recent ".bf" symbol. */
4507 ppc_ef (int ignore ATTRIBUTE_UNUSED
)
4511 sym
= symbol_make (".ef");
4512 S_SET_SEGMENT (sym
, text_section
);
4513 symbol_set_frag (sym
, frag_now
);
4514 S_SET_VALUE (sym
, frag_now_fix ());
4515 S_SET_STORAGE_CLASS (sym
, C_FCN
);
4516 S_SET_NUMBER_AUXILIARY (sym
, 1);
4517 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
4518 symbol_get_tc (sym
)->output
= 1;
4520 ppc_frob_label (sym
);
4522 demand_empty_rest_of_line ();
4525 /* The .bi and .ei pseudo-ops. These take a string argument and
4526 generates a C_BINCL or C_EINCL symbol, which goes at the start of
4527 the symbol list. The value of .bi will be know when the next .bf
4533 static symbolS
*last_biei
;
4540 name
= demand_copy_C_string (&len
);
4542 /* The value of these symbols is actually file offset. Here we set
4543 the value to the index into the line number entries. In
4544 ppc_frob_symbols we set the fix_line field, which will cause BFD
4545 to do the right thing. */
4547 sym
= symbol_make (name
);
4548 /* obj-coff.c currently only handles line numbers correctly in the
4550 S_SET_SEGMENT (sym
, text_section
);
4551 S_SET_VALUE (sym
, coff_n_line_nos
);
4552 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4554 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
4555 symbol_get_tc (sym
)->output
= 1;
4563 for (look
= last_biei
? last_biei
: symbol_rootP
;
4564 (look
!= (symbolS
*) NULL
4565 && (S_GET_STORAGE_CLASS (look
) == C_FILE
4566 || S_GET_STORAGE_CLASS (look
) == C_BINCL
4567 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
4568 look
= symbol_next (look
))
4570 if (look
!= (symbolS
*) NULL
)
4572 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4573 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
4577 demand_empty_rest_of_line ();
4580 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
4581 There is one argument, which is a csect symbol. The value of the
4582 .bs symbol is the index of this csect symbol. */
4585 ppc_bs (int ignore ATTRIBUTE_UNUSED
)
4592 if (ppc_current_block
!= NULL
)
4593 as_bad (_("nested .bs blocks"));
4595 name
= input_line_pointer
;
4596 endc
= get_symbol_end ();
4598 csect
= symbol_find_or_make (name
);
4600 *input_line_pointer
= endc
;
4602 sym
= symbol_make (".bs");
4603 S_SET_SEGMENT (sym
, now_seg
);
4604 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
4605 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4606 symbol_get_tc (sym
)->output
= 1;
4608 symbol_get_tc (sym
)->within
= csect
;
4610 ppc_frob_label (sym
);
4612 ppc_current_block
= sym
;
4614 demand_empty_rest_of_line ();
4617 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
4620 ppc_es (int ignore ATTRIBUTE_UNUSED
)
4624 if (ppc_current_block
== NULL
)
4625 as_bad (_(".es without preceding .bs"));
4627 sym
= symbol_make (".es");
4628 S_SET_SEGMENT (sym
, now_seg
);
4629 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
4630 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4631 symbol_get_tc (sym
)->output
= 1;
4633 ppc_frob_label (sym
);
4635 ppc_current_block
= NULL
;
4637 demand_empty_rest_of_line ();
4640 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
4644 ppc_bb (int ignore ATTRIBUTE_UNUSED
)
4648 sym
= symbol_make (".bb");
4649 S_SET_SEGMENT (sym
, text_section
);
4650 symbol_set_frag (sym
, frag_now
);
4651 S_SET_VALUE (sym
, frag_now_fix ());
4652 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
4654 S_SET_NUMBER_AUXILIARY (sym
, 1);
4655 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
4657 symbol_get_tc (sym
)->output
= 1;
4659 SF_SET_PROCESS (sym
);
4661 ppc_frob_label (sym
);
4663 demand_empty_rest_of_line ();
4666 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
4670 ppc_eb (int ignore ATTRIBUTE_UNUSED
)
4674 sym
= symbol_make (".eb");
4675 S_SET_SEGMENT (sym
, text_section
);
4676 symbol_set_frag (sym
, frag_now
);
4677 S_SET_VALUE (sym
, frag_now_fix ());
4678 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
4679 S_SET_NUMBER_AUXILIARY (sym
, 1);
4680 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
4681 symbol_get_tc (sym
)->output
= 1;
4683 SF_SET_PROCESS (sym
);
4685 ppc_frob_label (sym
);
4687 demand_empty_rest_of_line ();
4690 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
4694 ppc_bc (int ignore ATTRIBUTE_UNUSED
)
4700 name
= demand_copy_C_string (&len
);
4701 sym
= symbol_make (name
);
4702 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
4703 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4704 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
4705 S_SET_VALUE (sym
, 0);
4706 symbol_get_tc (sym
)->output
= 1;
4708 ppc_frob_label (sym
);
4710 demand_empty_rest_of_line ();
4713 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
4716 ppc_ec (int ignore ATTRIBUTE_UNUSED
)
4720 sym
= symbol_make (".ec");
4721 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
4722 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4723 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
4724 S_SET_VALUE (sym
, 0);
4725 symbol_get_tc (sym
)->output
= 1;
4727 ppc_frob_label (sym
);
4729 demand_empty_rest_of_line ();
4732 /* The .toc pseudo-op. Switch to the .toc subsegment. */
4735 ppc_toc (int ignore ATTRIBUTE_UNUSED
)
4737 if (ppc_toc_csect
!= (symbolS
*) NULL
)
4738 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
4745 subseg
= ppc_data_subsegment
;
4746 ++ppc_data_subsegment
;
4748 subseg_new (segment_name (data_section
), subseg
);
4749 ppc_toc_frag
= frag_now
;
4751 sym
= symbol_find_or_make ("TOC[TC0]");
4752 symbol_set_frag (sym
, frag_now
);
4753 S_SET_SEGMENT (sym
, data_section
);
4754 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
4755 symbol_get_tc (sym
)->subseg
= subseg
;
4756 symbol_get_tc (sym
)->output
= 1;
4757 symbol_get_tc (sym
)->within
= sym
;
4759 ppc_toc_csect
= sym
;
4761 for (list
= ppc_data_csects
;
4762 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
4763 list
= symbol_get_tc (list
)->next
)
4765 symbol_get_tc (list
)->next
= sym
;
4767 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4768 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
4772 ppc_current_csect
= ppc_toc_csect
;
4774 demand_empty_rest_of_line ();
4777 /* The AIX assembler automatically aligns the operands of a .long or
4778 .short pseudo-op, and we want to be compatible. */
4781 ppc_xcoff_cons (int log_size
)
4783 frag_align (log_size
, 0, 0);
4784 record_alignment (now_seg
, log_size
);
4785 cons (1 << log_size
);
4789 ppc_vbyte (int dummy ATTRIBUTE_UNUSED
)
4794 (void) expression (&exp
);
4796 if (exp
.X_op
!= O_constant
)
4798 as_bad (_("non-constant byte count"));
4802 byte_count
= exp
.X_add_number
;
4804 if (*input_line_pointer
!= ',')
4806 as_bad (_("missing value"));
4810 ++input_line_pointer
;
4815 ppc_xcoff_end (void)
4819 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
4821 struct dw_section
*dws
= &dw_sections
[i
];
4822 struct dw_subsection
*dwss
;
4824 if (dws
->anon_subseg
)
4826 dwss
= dws
->anon_subseg
;
4827 dwss
->link
= dws
->list_subseg
;
4830 dwss
= dws
->list_subseg
;
4832 for (; dwss
!= NULL
; dwss
= dwss
->link
)
4833 if (dwss
->end_exp
.X_add_symbol
!= NULL
)
4835 subseg_set (dws
->sect
, dwss
->subseg
);
4836 symbol_set_value_now (dwss
->end_exp
.X_add_symbol
);
4841 #endif /* OBJ_XCOFF */
4842 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
4844 /* The .tc pseudo-op. This is used when generating either XCOFF or
4845 ELF. This takes two or more arguments.
4847 When generating XCOFF output, the first argument is the name to
4848 give to this location in the toc; this will be a symbol with class
4849 TC. The rest of the arguments are N-byte values to actually put at
4850 this location in the TOC; often there is just one more argument, a
4851 relocatable symbol reference. The size of the value to store
4852 depends on target word size. A 32-bit target uses 4-byte values, a
4853 64-bit target uses 8-byte values.
4855 When not generating XCOFF output, the arguments are the same, but
4856 the first argument is simply ignored. */
4859 ppc_tc (int ignore ATTRIBUTE_UNUSED
)
4863 /* Define the TOC symbol name. */
4869 if (ppc_toc_csect
== (symbolS
*) NULL
4870 || ppc_toc_csect
!= ppc_current_csect
)
4872 as_bad (_(".tc not in .toc section"));
4873 ignore_rest_of_line ();
4877 name
= input_line_pointer
;
4878 endc
= get_symbol_end ();
4880 sym
= symbol_find_or_make (name
);
4882 *input_line_pointer
= endc
;
4884 if (S_IS_DEFINED (sym
))
4888 label
= symbol_get_tc (ppc_current_csect
)->within
;
4889 if (symbol_get_tc (label
)->symbol_class
!= XMC_TC0
)
4891 as_bad (_(".tc with no label"));
4892 ignore_rest_of_line ();
4896 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
4897 symbol_set_frag (label
, symbol_get_frag (sym
));
4898 S_SET_VALUE (label
, S_GET_VALUE (sym
));
4900 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
4901 ++input_line_pointer
;
4906 S_SET_SEGMENT (sym
, now_seg
);
4907 symbol_set_frag (sym
, frag_now
);
4908 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
4909 symbol_get_tc (sym
)->symbol_class
= XMC_TC
;
4910 symbol_get_tc (sym
)->output
= 1;
4912 ppc_frob_label (sym
);
4915 #endif /* OBJ_XCOFF */
4919 /* Skip the TOC symbol name. */
4920 while (is_part_of_name (*input_line_pointer
)
4921 || *input_line_pointer
== ' '
4922 || *input_line_pointer
== '['
4923 || *input_line_pointer
== ']'
4924 || *input_line_pointer
== '{'
4925 || *input_line_pointer
== '}')
4926 ++input_line_pointer
;
4928 /* Align to a four/eight byte boundary. */
4929 align
= ppc_obj64
? 3 : 2;
4930 frag_align (align
, 0, 0);
4931 record_alignment (now_seg
, align
);
4932 #endif /* OBJ_ELF */
4934 if (*input_line_pointer
!= ',')
4935 demand_empty_rest_of_line ();
4938 ++input_line_pointer
;
4939 cons (ppc_obj64
? 8 : 4);
4943 /* Pseudo-op .machine. */
4946 ppc_machine (int ignore ATTRIBUTE_UNUSED
)
4949 #define MAX_HISTORY 100
4950 static ppc_cpu_t
*cpu_history
;
4951 static int curr_hist
;
4955 if (*input_line_pointer
== '"')
4958 cpu_string
= demand_copy_C_string (&len
);
4963 cpu_string
= input_line_pointer
;
4964 c
= get_symbol_end ();
4965 cpu_string
= xstrdup (cpu_string
);
4966 *input_line_pointer
= c
;
4969 if (cpu_string
!= NULL
)
4971 ppc_cpu_t old_cpu
= ppc_cpu
;
4975 for (p
= cpu_string
; *p
!= 0; p
++)
4978 if (strcmp (cpu_string
, "push") == 0)
4980 if (cpu_history
== NULL
)
4981 cpu_history
= xmalloc (MAX_HISTORY
* sizeof (*cpu_history
));
4983 if (curr_hist
>= MAX_HISTORY
)
4984 as_bad (_(".machine stack overflow"));
4986 cpu_history
[curr_hist
++] = ppc_cpu
;
4988 else if (strcmp (cpu_string
, "pop") == 0)
4991 as_bad (_(".machine stack underflow"));
4993 ppc_cpu
= cpu_history
[--curr_hist
];
4995 else if ((new_cpu
= ppc_parse_cpu (ppc_cpu
, &sticky
, cpu_string
)) != 0)
4998 as_bad (_("invalid machine `%s'"), cpu_string
);
5000 if (ppc_cpu
!= old_cpu
)
5001 ppc_setup_opcodes ();
5004 demand_empty_rest_of_line ();
5006 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5010 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
5012 /* Set the current section. */
5014 ppc_set_current_section (segT
new)
5016 ppc_previous_section
= ppc_current_section
;
5017 ppc_current_section
= new;
5020 /* pseudo-op: .previous
5021 behaviour: toggles the current section with the previous section.
5023 warnings: "No previous section" */
5026 ppc_previous (int ignore ATTRIBUTE_UNUSED
)
5028 if (ppc_previous_section
== NULL
)
5030 as_warn (_("no previous section to return to, ignored."));
5034 subseg_set (ppc_previous_section
, 0);
5036 ppc_set_current_section (ppc_previous_section
);
5039 /* pseudo-op: .pdata
5040 behaviour: predefined read only data section
5044 initial: .section .pdata "adr3"
5045 a - don't know -- maybe a misprint
5046 d - initialized data
5048 3 - double word aligned (that would be 4 byte boundary)
5051 Tag index tables (also known as the function table) for exception
5052 handling, debugging, etc. */
5055 ppc_pdata (int ignore ATTRIBUTE_UNUSED
)
5057 if (pdata_section
== 0)
5059 pdata_section
= subseg_new (".pdata", 0);
5061 bfd_set_section_flags (stdoutput
, pdata_section
,
5062 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5063 | SEC_READONLY
| SEC_DATA
));
5065 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
5069 pdata_section
= subseg_new (".pdata", 0);
5071 ppc_set_current_section (pdata_section
);
5074 /* pseudo-op: .ydata
5075 behaviour: predefined read only data section
5079 initial: .section .ydata "drw3"
5080 a - don't know -- maybe a misprint
5081 d - initialized data
5083 3 - double word aligned (that would be 4 byte boundary)
5085 Tag tables (also known as the scope table) for exception handling,
5089 ppc_ydata (int ignore ATTRIBUTE_UNUSED
)
5091 if (ydata_section
== 0)
5093 ydata_section
= subseg_new (".ydata", 0);
5094 bfd_set_section_flags (stdoutput
, ydata_section
,
5095 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5096 | SEC_READONLY
| SEC_DATA
));
5098 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
5102 ydata_section
= subseg_new (".ydata", 0);
5104 ppc_set_current_section (ydata_section
);
5107 /* pseudo-op: .reldata
5108 behaviour: predefined read write data section
5109 double word aligned (4-byte)
5110 FIXME: relocation is applied to it
5111 FIXME: what's the difference between this and .data?
5114 initial: .section .reldata "drw3"
5115 d - initialized data
5118 3 - double word aligned (that would be 8 byte boundary)
5121 Like .data, but intended to hold data subject to relocation, such as
5122 function descriptors, etc. */
5125 ppc_reldata (int ignore ATTRIBUTE_UNUSED
)
5127 if (reldata_section
== 0)
5129 reldata_section
= subseg_new (".reldata", 0);
5131 bfd_set_section_flags (stdoutput
, reldata_section
,
5132 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5135 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
5139 reldata_section
= subseg_new (".reldata", 0);
5141 ppc_set_current_section (reldata_section
);
5144 /* pseudo-op: .rdata
5145 behaviour: predefined read only data section
5149 initial: .section .rdata "dr3"
5150 d - initialized data
5152 3 - double word aligned (that would be 4 byte boundary) */
5155 ppc_rdata (int ignore ATTRIBUTE_UNUSED
)
5157 if (rdata_section
== 0)
5159 rdata_section
= subseg_new (".rdata", 0);
5160 bfd_set_section_flags (stdoutput
, rdata_section
,
5161 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5162 | SEC_READONLY
| SEC_DATA
));
5164 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
5168 rdata_section
= subseg_new (".rdata", 0);
5170 ppc_set_current_section (rdata_section
);
5173 /* pseudo-op: .ualong
5174 behaviour: much like .int, with the exception that no alignment is
5176 FIXME: test the alignment statement
5181 ppc_ualong (int ignore ATTRIBUTE_UNUSED
)
5187 /* pseudo-op: .znop <symbol name>
5188 behaviour: Issue a nop instruction
5189 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
5190 the supplied symbol name.
5192 warnings: Missing symbol name */
5195 ppc_znop (int ignore ATTRIBUTE_UNUSED
)
5198 const struct powerpc_opcode
*opcode
;
5205 /* Strip out the symbol name. */
5206 symbol_name
= input_line_pointer
;
5207 c
= get_symbol_end ();
5209 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
5210 strcpy (name
, symbol_name
);
5212 sym
= symbol_find_or_make (name
);
5214 *input_line_pointer
= c
;
5218 /* Look up the opcode in the hash table. */
5219 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
5221 /* Stick in the nop. */
5222 insn
= opcode
->opcode
;
5224 /* Write out the instruction. */
5226 md_number_to_chars (f
, insn
, 4);
5228 f
- frag_now
->fr_literal
,
5233 BFD_RELOC_16_GOT_PCREL
);
5243 ppc_pe_comm (int lcomm
)
5252 name
= input_line_pointer
;
5253 c
= get_symbol_end ();
5255 /* just after name is now '\0'. */
5256 p
= input_line_pointer
;
5259 if (*input_line_pointer
!= ',')
5261 as_bad (_("expected comma after symbol-name: rest of line ignored."));
5262 ignore_rest_of_line ();
5266 input_line_pointer
++; /* skip ',' */
5267 if ((temp
= get_absolute_expression ()) < 0)
5269 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
5270 ignore_rest_of_line ();
5276 /* The third argument to .comm is the alignment. */
5277 if (*input_line_pointer
!= ',')
5281 ++input_line_pointer
;
5282 align
= get_absolute_expression ();
5285 as_warn (_("ignoring bad alignment"));
5292 symbolP
= symbol_find_or_make (name
);
5295 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
5297 as_bad (_("ignoring attempt to re-define symbol `%s'."),
5298 S_GET_NAME (symbolP
));
5299 ignore_rest_of_line ();
5303 if (S_GET_VALUE (symbolP
))
5305 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
5306 as_bad (_("length of .comm \"%s\" is already %ld. Not changed to %ld."),
5307 S_GET_NAME (symbolP
),
5308 (long) S_GET_VALUE (symbolP
),
5313 S_SET_VALUE (symbolP
, (valueT
) temp
);
5314 S_SET_EXTERNAL (symbolP
);
5315 S_SET_SEGMENT (symbolP
, bfd_com_section_ptr
);
5318 demand_empty_rest_of_line ();
5322 * implement the .section pseudo op:
5323 * .section name {, "flags"}
5325 * | +--- optional flags: 'b' for bss
5327 * +-- section name 'l' for lib
5331 * 'd' (apparently m88k for data)
5333 * But if the argument is not a quoted string, treat it as a
5334 * subsegment number.
5336 * FIXME: this is a copy of the section processing from obj-coff.c, with
5337 * additions/changes for the moto-pas assembler support. There are three
5340 * FIXME: I just noticed this. This doesn't work at all really. It it
5341 * setting bits that bfd probably neither understands or uses. The
5342 * correct approach (?) will have to incorporate extra fields attached
5343 * to the section to hold the system specific stuff. (krk)
5346 * 'a' - unknown - referred to in documentation, but no definition supplied
5347 * 'c' - section has code
5348 * 'd' - section has initialized data
5349 * 'u' - section has uninitialized data
5350 * 'i' - section contains directives (info)
5351 * 'n' - section can be discarded
5352 * 'R' - remove section at link time
5354 * Section Protection:
5355 * 'r' - section is readable
5356 * 'w' - section is writeable
5357 * 'x' - section is executable
5358 * 's' - section is sharable
5360 * Section Alignment:
5361 * '0' - align to byte boundary
5362 * '1' - align to halfword undary
5363 * '2' - align to word boundary
5364 * '3' - align to doubleword boundary
5365 * '4' - align to quadword boundary
5366 * '5' - align to 32 byte boundary
5367 * '6' - align to 64 byte boundary
5372 ppc_pe_section (int ignore ATTRIBUTE_UNUSED
)
5374 /* Strip out the section name. */
5383 section_name
= input_line_pointer
;
5384 c
= get_symbol_end ();
5386 name
= xmalloc (input_line_pointer
- section_name
+ 1);
5387 strcpy (name
, section_name
);
5389 *input_line_pointer
= c
;
5394 flags
= SEC_NO_FLAGS
;
5396 if (strcmp (name
, ".idata$2") == 0)
5400 else if (strcmp (name
, ".idata$3") == 0)
5404 else if (strcmp (name
, ".idata$4") == 0)
5408 else if (strcmp (name
, ".idata$5") == 0)
5412 else if (strcmp (name
, ".idata$6") == 0)
5417 /* Default alignment to 16 byte boundary. */
5420 if (*input_line_pointer
== ',')
5422 ++input_line_pointer
;
5424 if (*input_line_pointer
!= '"')
5425 exp
= get_absolute_expression ();
5428 ++input_line_pointer
;
5429 while (*input_line_pointer
!= '"'
5430 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
5432 switch (*input_line_pointer
)
5434 /* Section Contents */
5435 case 'a': /* unknown */
5436 as_bad (_("unsupported section attribute -- 'a'"));
5438 case 'c': /* code section */
5441 case 'd': /* section has initialized data */
5444 case 'u': /* section has uninitialized data */
5445 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
5449 case 'i': /* section contains directives (info) */
5450 /* FIXME: This is IMAGE_SCN_LNK_INFO
5452 flags
|= SEC_HAS_CONTENTS
;
5454 case 'n': /* section can be discarded */
5457 case 'R': /* Remove section at link time */
5458 flags
|= SEC_NEVER_LOAD
;
5460 #if IFLICT_BRAIN_DAMAGE
5461 /* Section Protection */
5462 case 'r': /* section is readable */
5463 flags
|= IMAGE_SCN_MEM_READ
;
5465 case 'w': /* section is writeable */
5466 flags
|= IMAGE_SCN_MEM_WRITE
;
5468 case 'x': /* section is executable */
5469 flags
|= IMAGE_SCN_MEM_EXECUTE
;
5471 case 's': /* section is sharable */
5472 flags
|= IMAGE_SCN_MEM_SHARED
;
5475 /* Section Alignment */
5476 case '0': /* align to byte boundary */
5477 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
5480 case '1': /* align to halfword boundary */
5481 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
5484 case '2': /* align to word boundary */
5485 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
5488 case '3': /* align to doubleword boundary */
5489 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
5492 case '4': /* align to quadword boundary */
5493 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
5496 case '5': /* align to 32 byte boundary */
5497 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
5500 case '6': /* align to 64 byte boundary */
5501 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
5506 as_bad (_("unknown section attribute '%c'"),
5507 *input_line_pointer
);
5510 ++input_line_pointer
;
5512 if (*input_line_pointer
== '"')
5513 ++input_line_pointer
;
5517 sec
= subseg_new (name
, (subsegT
) exp
);
5519 ppc_set_current_section (sec
);
5521 if (flags
!= SEC_NO_FLAGS
)
5523 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
5524 as_bad (_("error setting flags for \"%s\": %s"),
5525 bfd_section_name (stdoutput
, sec
),
5526 bfd_errmsg (bfd_get_error ()));
5529 bfd_set_section_alignment (stdoutput
, sec
, align
);
5533 ppc_pe_function (int ignore ATTRIBUTE_UNUSED
)
5539 name
= input_line_pointer
;
5540 endc
= get_symbol_end ();
5542 ext_sym
= symbol_find_or_make (name
);
5544 *input_line_pointer
= endc
;
5546 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
5547 SF_SET_FUNCTION (ext_sym
);
5548 SF_SET_PROCESS (ext_sym
);
5549 coff_add_linesym (ext_sym
);
5551 demand_empty_rest_of_line ();
5555 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED
)
5557 if (tocdata_section
== 0)
5559 tocdata_section
= subseg_new (".tocd", 0);
5560 /* FIXME: section flags won't work. */
5561 bfd_set_section_flags (stdoutput
, tocdata_section
,
5562 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5563 | SEC_READONLY
| SEC_DATA
));
5565 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
5569 rdata_section
= subseg_new (".tocd", 0);
5572 ppc_set_current_section (tocdata_section
);
5574 demand_empty_rest_of_line ();
5577 /* Don't adjust TOC relocs to use the section symbol. */
5580 ppc_pe_fix_adjustable (fixS
*fix
)
5582 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
5589 /* XCOFF specific symbol and file handling. */
5591 /* Canonicalize the symbol name. We use the to force the suffix, if
5592 any, to use square brackets, and to be in upper case. */
5595 ppc_canonicalize_symbol_name (char *name
)
5599 if (ppc_stab_symbol
)
5602 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
5616 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
5619 if (*s
== '\0' || s
[1] != '\0')
5620 as_bad (_("bad symbol suffix"));
5628 /* Set the class of a symbol based on the suffix, if any. This is
5629 called whenever a new symbol is created. */
5632 ppc_symbol_new_hook (symbolS
*sym
)
5634 struct ppc_tc_sy
*tc
;
5637 tc
= symbol_get_tc (sym
);
5640 tc
->symbol_class
= -1;
5641 tc
->real_name
= NULL
;
5648 if (ppc_stab_symbol
)
5651 s
= strchr (S_GET_NAME (sym
), '[');
5652 if (s
== (const char *) NULL
)
5654 /* There is no suffix. */
5663 if (strcmp (s
, "BS]") == 0)
5664 tc
->symbol_class
= XMC_BS
;
5667 if (strcmp (s
, "DB]") == 0)
5668 tc
->symbol_class
= XMC_DB
;
5669 else if (strcmp (s
, "DS]") == 0)
5670 tc
->symbol_class
= XMC_DS
;
5673 if (strcmp (s
, "GL]") == 0)
5674 tc
->symbol_class
= XMC_GL
;
5677 if (strcmp (s
, "PR]") == 0)
5678 tc
->symbol_class
= XMC_PR
;
5681 if (strcmp (s
, "RO]") == 0)
5682 tc
->symbol_class
= XMC_RO
;
5683 else if (strcmp (s
, "RW]") == 0)
5684 tc
->symbol_class
= XMC_RW
;
5687 if (strcmp (s
, "SV]") == 0)
5688 tc
->symbol_class
= XMC_SV
;
5691 if (strcmp (s
, "TC]") == 0)
5692 tc
->symbol_class
= XMC_TC
;
5693 else if (strcmp (s
, "TI]") == 0)
5694 tc
->symbol_class
= XMC_TI
;
5695 else if (strcmp (s
, "TB]") == 0)
5696 tc
->symbol_class
= XMC_TB
;
5697 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
5698 tc
->symbol_class
= XMC_TC0
;
5701 if (strcmp (s
, "UA]") == 0)
5702 tc
->symbol_class
= XMC_UA
;
5703 else if (strcmp (s
, "UC]") == 0)
5704 tc
->symbol_class
= XMC_UC
;
5707 if (strcmp (s
, "XO]") == 0)
5708 tc
->symbol_class
= XMC_XO
;
5712 if (tc
->symbol_class
== -1)
5713 as_bad (_("unrecognized symbol suffix"));
5716 /* Set the class of a label based on where it is defined. This
5717 handles symbols without suffixes. Also, move the symbol so that it
5718 follows the csect symbol. */
5721 ppc_frob_label (symbolS
*sym
)
5723 if (ppc_current_csect
!= (symbolS
*) NULL
)
5725 if (symbol_get_tc (sym
)->symbol_class
== -1)
5726 symbol_get_tc (sym
)->symbol_class
= symbol_get_tc (ppc_current_csect
)->symbol_class
;
5728 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
5729 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
5730 &symbol_rootP
, &symbol_lastP
);
5731 symbol_get_tc (ppc_current_csect
)->within
= sym
;
5732 symbol_get_tc (sym
)->within
= ppc_current_csect
;
5736 dwarf2_emit_label (sym
);
5740 /* This variable is set by ppc_frob_symbol if any absolute symbols are
5741 seen. It tells ppc_adjust_symtab whether it needs to look through
5744 static bfd_boolean ppc_saw_abs
;
5746 /* Change the name of a symbol just before writing it out. Set the
5747 real name if the .rename pseudo-op was used. Otherwise, remove any
5748 class suffix. Return 1 if the symbol should not be included in the
5752 ppc_frob_symbol (symbolS
*sym
)
5754 static symbolS
*ppc_last_function
;
5755 static symbolS
*set_end
;
5757 /* Discard symbols that should not be included in the output symbol
5759 if (! symbol_used_in_reloc_p (sym
)
5760 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
5761 || (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
5762 && ! symbol_get_tc (sym
)->output
5763 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
5766 /* This one will disappear anyway. Don't make a csect sym for it. */
5767 if (sym
== abs_section_sym
)
5770 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
5771 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
5777 name
= S_GET_NAME (sym
);
5778 s
= strchr (name
, '[');
5779 if (s
!= (char *) NULL
)
5785 snew
= xmalloc (len
+ 1);
5786 memcpy (snew
, name
, len
);
5789 S_SET_NAME (sym
, snew
);
5793 if (set_end
!= (symbolS
*) NULL
)
5795 SA_SET_SYM_ENDNDX (set_end
, sym
);
5799 if (SF_GET_FUNCTION (sym
))
5801 if (ppc_last_function
!= (symbolS
*) NULL
)
5802 as_bad (_("two .function pseudo-ops with no intervening .ef"));
5803 ppc_last_function
= sym
;
5804 if (symbol_get_tc (sym
)->u
.size
!= (symbolS
*) NULL
)
5806 resolve_symbol_value (symbol_get_tc (sym
)->u
.size
);
5807 SA_SET_SYM_FSIZE (sym
,
5808 (long) S_GET_VALUE (symbol_get_tc (sym
)->u
.size
));
5811 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
5812 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
5814 if (ppc_last_function
== (symbolS
*) NULL
)
5815 as_bad (_(".ef with no preceding .function"));
5818 set_end
= ppc_last_function
;
5819 ppc_last_function
= NULL
;
5821 /* We don't have a C_EFCN symbol, but we need to force the
5822 COFF backend to believe that it has seen one. */
5823 coff_last_function
= NULL
;
5827 if (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
5828 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
5829 && S_GET_STORAGE_CLASS (sym
) != C_FILE
5830 && S_GET_STORAGE_CLASS (sym
) != C_FCN
5831 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
5832 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
5833 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
5834 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
5835 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
5836 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
5837 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
5839 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
5840 || S_GET_STORAGE_CLASS (sym
) == C_AIX_WEAKEXT
5841 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
5844 union internal_auxent
*a
;
5846 /* Create a csect aux. */
5847 i
= S_GET_NUMBER_AUXILIARY (sym
);
5848 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
5849 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
5850 if (symbol_get_tc (sym
)->symbol_class
== XMC_TC0
)
5852 /* This is the TOC table. */
5853 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
5854 a
->x_csect
.x_scnlen
.l
= 0;
5855 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5857 else if (symbol_get_tc (sym
)->subseg
!= 0)
5859 /* This is a csect symbol. x_scnlen is the size of the
5861 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
5862 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5863 S_GET_SEGMENT (sym
))
5864 - S_GET_VALUE (sym
));
5867 resolve_symbol_value (symbol_get_tc (sym
)->next
);
5868 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
5869 - S_GET_VALUE (sym
));
5871 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
5873 else if (S_GET_SEGMENT (sym
) == bss_section
)
5875 /* This is a common symbol. */
5876 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
5877 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
5878 if (S_IS_EXTERNAL (sym
))
5879 symbol_get_tc (sym
)->symbol_class
= XMC_RW
;
5881 symbol_get_tc (sym
)->symbol_class
= XMC_BS
;
5883 else if (S_GET_SEGMENT (sym
) == absolute_section
)
5885 /* This is an absolute symbol. The csect will be created by
5886 ppc_adjust_symtab. */
5888 a
->x_csect
.x_smtyp
= XTY_LD
;
5889 if (symbol_get_tc (sym
)->symbol_class
== -1)
5890 symbol_get_tc (sym
)->symbol_class
= XMC_XO
;
5892 else if (! S_IS_DEFINED (sym
))
5894 /* This is an external symbol. */
5895 a
->x_csect
.x_scnlen
.l
= 0;
5896 a
->x_csect
.x_smtyp
= XTY_ER
;
5898 else if (symbol_get_tc (sym
)->symbol_class
== XMC_TC
)
5902 /* This is a TOC definition. x_scnlen is the size of the
5904 next
= symbol_next (sym
);
5905 while (symbol_get_tc (next
)->symbol_class
== XMC_TC0
)
5906 next
= symbol_next (next
);
5907 if (next
== (symbolS
*) NULL
5908 || symbol_get_tc (next
)->symbol_class
!= XMC_TC
)
5910 if (ppc_after_toc_frag
== (fragS
*) NULL
)
5911 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5913 - S_GET_VALUE (sym
));
5915 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
5916 - S_GET_VALUE (sym
));
5920 resolve_symbol_value (next
);
5921 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
5922 - S_GET_VALUE (sym
));
5924 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5930 /* This is a normal symbol definition. x_scnlen is the
5931 symbol index of the containing csect. */
5932 if (S_GET_SEGMENT (sym
) == text_section
)
5933 csect
= ppc_text_csects
;
5934 else if (S_GET_SEGMENT (sym
) == data_section
)
5935 csect
= ppc_data_csects
;
5939 /* Skip the initial dummy symbol. */
5940 csect
= symbol_get_tc (csect
)->next
;
5942 if (csect
== (symbolS
*) NULL
)
5944 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
5945 a
->x_csect
.x_scnlen
.l
= 0;
5949 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
5951 resolve_symbol_value (symbol_get_tc (csect
)->next
);
5952 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
5953 > S_GET_VALUE (sym
))
5955 csect
= symbol_get_tc (csect
)->next
;
5958 a
->x_csect
.x_scnlen
.p
=
5959 coffsymbol (symbol_get_bfdsym (csect
))->native
;
5960 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
5963 a
->x_csect
.x_smtyp
= XTY_LD
;
5966 a
->x_csect
.x_parmhash
= 0;
5967 a
->x_csect
.x_snhash
= 0;
5968 if (symbol_get_tc (sym
)->symbol_class
== -1)
5969 a
->x_csect
.x_smclas
= XMC_PR
;
5971 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->symbol_class
;
5972 a
->x_csect
.x_stab
= 0;
5973 a
->x_csect
.x_snstab
= 0;
5975 /* Don't let the COFF backend resort these symbols. */
5976 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
5978 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
5980 /* We want the value to be the symbol index of the referenced
5981 csect symbol. BFD will do that for us if we set the right
5983 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
5984 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
5986 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
5987 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
5989 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
5994 block
= symbol_get_tc (sym
)->within
;
5997 /* The value is the offset from the enclosing csect. */
6000 csect
= symbol_get_tc (block
)->within
;
6001 resolve_symbol_value (csect
);
6002 base
= S_GET_VALUE (csect
);
6007 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - base
);
6009 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
6010 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
6012 /* We want the value to be a file offset into the line numbers.
6013 BFD will do that for us if we set the right flags. We have
6014 already set the value correctly. */
6015 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
6021 /* Adjust the symbol table. This creates csect symbols for all
6022 absolute symbols. */
6025 ppc_adjust_symtab (void)
6032 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
6036 union internal_auxent
*a
;
6038 if (S_GET_SEGMENT (sym
) != absolute_section
)
6041 csect
= symbol_create (".abs[XO]", absolute_section
,
6042 S_GET_VALUE (sym
), &zero_address_frag
);
6043 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
6044 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
6045 i
= S_GET_NUMBER_AUXILIARY (csect
);
6046 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
6047 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
6048 a
->x_csect
.x_scnlen
.l
= 0;
6049 a
->x_csect
.x_smtyp
= XTY_SD
;
6050 a
->x_csect
.x_parmhash
= 0;
6051 a
->x_csect
.x_snhash
= 0;
6052 a
->x_csect
.x_smclas
= XMC_XO
;
6053 a
->x_csect
.x_stab
= 0;
6054 a
->x_csect
.x_snstab
= 0;
6056 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
6058 i
= S_GET_NUMBER_AUXILIARY (sym
);
6059 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
6060 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
6061 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
6064 ppc_saw_abs
= FALSE
;
6067 /* Set the VMA for a section. This is called on all the sections in
6071 ppc_frob_section (asection
*sec
)
6073 static bfd_vma vma
= 0;
6075 /* Dwarf sections start at 0. */
6076 if (bfd_get_section_flags (NULL
, sec
) & SEC_DEBUGGING
)
6079 vma
= md_section_align (sec
, vma
);
6080 bfd_set_section_vma (stdoutput
, sec
, vma
);
6081 vma
+= bfd_section_size (stdoutput
, sec
);
6084 #endif /* OBJ_XCOFF */
6087 md_atof (int type
, char *litp
, int *sizep
)
6089 return ieee_md_atof (type
, litp
, sizep
, target_big_endian
);
6092 /* Write a value out to the object file, using the appropriate
6096 md_number_to_chars (char *buf
, valueT val
, int n
)
6098 if (target_big_endian
)
6099 number_to_chars_bigendian (buf
, val
, n
);
6101 number_to_chars_littleendian (buf
, val
, n
);
6104 /* Align a section (I don't know why this is machine dependent). */
6107 md_section_align (asection
*seg ATTRIBUTE_UNUSED
, valueT addr
)
6112 int align
= bfd_get_section_alignment (stdoutput
, seg
);
6114 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
6118 /* We don't have any form of relaxing. */
6121 md_estimate_size_before_relax (fragS
*fragp ATTRIBUTE_UNUSED
,
6122 asection
*seg ATTRIBUTE_UNUSED
)
6128 /* Convert a machine dependent frag. We never generate these. */
6131 md_convert_frag (bfd
*abfd ATTRIBUTE_UNUSED
,
6132 asection
*sec ATTRIBUTE_UNUSED
,
6133 fragS
*fragp ATTRIBUTE_UNUSED
)
6138 /* We have no need to default values of symbols. */
6141 md_undefined_symbol (char *name ATTRIBUTE_UNUSED
)
6146 /* Functions concerning relocs. */
6148 /* The location from which a PC relative jump should be calculated,
6149 given a PC relative reloc. */
6152 md_pcrel_from_section (fixS
*fixp
, segT sec ATTRIBUTE_UNUSED
)
6154 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6159 /* This is called to see whether a fixup should be adjusted to use a
6160 section symbol. We take the opportunity to change a fixup against
6161 a symbol in the TOC subsegment into a reloc against the
6162 corresponding .tc symbol. */
6165 ppc_fix_adjustable (fixS
*fix
)
6167 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
6168 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
6169 TC_SYMFIELD_TYPE
*tc
;
6171 if (symseg
== absolute_section
)
6174 /* Always adjust symbols in debugging sections. */
6175 if (bfd_get_section_flags (stdoutput
, symseg
) & SEC_DEBUGGING
)
6178 if (ppc_toc_csect
!= (symbolS
*) NULL
6179 && fix
->fx_addsy
!= ppc_toc_csect
6180 && symseg
== data_section
6181 && val
>= ppc_toc_frag
->fr_address
6182 && (ppc_after_toc_frag
== (fragS
*) NULL
6183 || val
< ppc_after_toc_frag
->fr_address
))
6187 for (sy
= symbol_next (ppc_toc_csect
);
6188 sy
!= (symbolS
*) NULL
;
6189 sy
= symbol_next (sy
))
6191 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
6193 if (sy_tc
->symbol_class
== XMC_TC0
)
6195 if (sy_tc
->symbol_class
!= XMC_TC
)
6197 if (val
== resolve_symbol_value (sy
))
6200 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
6205 as_bad_where (fix
->fx_file
, fix
->fx_line
,
6206 _("symbol in .toc does not match any .tc"));
6209 /* Possibly adjust the reloc to be against the csect. */
6210 tc
= symbol_get_tc (fix
->fx_addsy
);
6212 && tc
->symbol_class
!= XMC_TC0
6213 && tc
->symbol_class
!= XMC_TC
6214 && symseg
!= bss_section
6215 /* Don't adjust if this is a reloc in the toc section. */
6216 && (symseg
!= data_section
6217 || ppc_toc_csect
== NULL
6218 || val
< ppc_toc_frag
->fr_address
6219 || (ppc_after_toc_frag
!= NULL
6220 && val
>= ppc_after_toc_frag
->fr_address
)))
6222 symbolS
*csect
= tc
->within
;
6224 /* If the symbol was not declared by a label (eg: a section symbol),
6225 use the section instead of the csect. This doesn't happen in
6226 normal AIX assembly code. */
6228 csect
= seg_info (symseg
)->sym
;
6230 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
6231 fix
->fx_addsy
= csect
;
6236 /* Adjust a reloc against a .lcomm symbol to be against the base
6238 if (symseg
== bss_section
6239 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
6241 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
6243 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
6250 /* A reloc from one csect to another must be kept. The assembler
6251 will, of course, keep relocs between sections, and it will keep
6252 absolute relocs, but we need to force it to keep PC relative relocs
6253 between two csects in the same section. */
6256 ppc_force_relocation (fixS
*fix
)
6258 /* At this point fix->fx_addsy should already have been converted to
6259 a csect symbol. If the csect does not include the fragment, then
6260 we need to force the relocation. */
6262 && fix
->fx_addsy
!= NULL
6263 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
6264 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
6265 > fix
->fx_frag
->fr_address
)
6266 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
6267 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
6268 <= fix
->fx_frag
->fr_address
))))
6271 return generic_force_reloc (fix
);
6275 ppc_new_dot_label (symbolS
*sym
)
6277 /* Anchor this label to the current csect for relocations. */
6278 symbol_get_tc (sym
)->within
= ppc_current_csect
;
6281 #endif /* OBJ_XCOFF */
6284 /* If this function returns non-zero, it guarantees that a relocation
6285 will be emitted for a fixup. */
6288 ppc_force_relocation (fixS
*fix
)
6290 /* Branch prediction relocations must force a relocation, as must
6291 the vtable description relocs. */
6292 switch (fix
->fx_r_type
)
6294 case BFD_RELOC_PPC_B16_BRTAKEN
:
6295 case BFD_RELOC_PPC_B16_BRNTAKEN
:
6296 case BFD_RELOC_PPC_BA16_BRTAKEN
:
6297 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
6298 case BFD_RELOC_24_PLT_PCREL
:
6299 case BFD_RELOC_PPC64_TOC
:
6301 case BFD_RELOC_PPC_B26
:
6302 case BFD_RELOC_PPC_BA26
:
6303 case BFD_RELOC_PPC_B16
:
6304 case BFD_RELOC_PPC_BA16
:
6305 /* All branch fixups targeting a localentry symbol must
6306 force a relocation. */
6309 asymbol
*bfdsym
= symbol_get_bfdsym (fix
->fx_addsy
);
6310 elf_symbol_type
*elfsym
6311 = elf_symbol_from (bfd_asymbol_bfd (bfdsym
), bfdsym
);
6312 gas_assert (elfsym
);
6313 if ((STO_PPC64_LOCAL_MASK
& elfsym
->internal_elf_sym
.st_other
) != 0)
6321 if (fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
6322 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
6325 return generic_force_reloc (fix
);
6329 ppc_fix_adjustable (fixS
*fix
)
6331 switch (fix
->fx_r_type
)
6333 /* All branch fixups targeting a localentry symbol must
6334 continue using the symbol. */
6335 case BFD_RELOC_PPC_B26
:
6336 case BFD_RELOC_PPC_BA26
:
6337 case BFD_RELOC_PPC_B16
:
6338 case BFD_RELOC_PPC_BA16
:
6339 case BFD_RELOC_PPC_B16_BRTAKEN
:
6340 case BFD_RELOC_PPC_B16_BRNTAKEN
:
6341 case BFD_RELOC_PPC_BA16_BRTAKEN
:
6342 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
6345 asymbol
*bfdsym
= symbol_get_bfdsym (fix
->fx_addsy
);
6346 elf_symbol_type
*elfsym
6347 = elf_symbol_from (bfd_asymbol_bfd (bfdsym
), bfdsym
);
6348 gas_assert (elfsym
);
6349 if ((STO_PPC64_LOCAL_MASK
& elfsym
->internal_elf_sym
.st_other
) != 0)
6357 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
6358 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
6359 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
6360 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
6361 && fix
->fx_r_type
!= BFD_RELOC_PPC64_GOT16_DS
6362 && fix
->fx_r_type
!= BFD_RELOC_PPC64_GOT16_LO_DS
6363 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
6364 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
6365 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
6366 && !(fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
6367 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
));
6372 ppc_frag_check (struct frag
*fragP
)
6374 if (!fragP
->has_code
)
6377 if (ppc_mach() == bfd_mach_ppc_vle
)
6379 if (((fragP
->fr_address
+ fragP
->insn_addr
) & 1) != 0)
6380 as_bad (_("instruction address is not a multiple of 2"));
6384 if (((fragP
->fr_address
+ fragP
->insn_addr
) & 3) != 0)
6385 as_bad (_("instruction address is not a multiple of 4"));
6389 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
6390 rs_align_code frag. */
6393 ppc_handle_align (struct frag
*fragP
)
6395 valueT count
= (fragP
->fr_next
->fr_address
6396 - (fragP
->fr_address
+ fragP
->fr_fix
));
6398 if (ppc_mach() == bfd_mach_ppc_vle
&& count
!= 0 && (count
& 1) == 0)
6400 char *dest
= fragP
->fr_literal
+ fragP
->fr_fix
;
6403 md_number_to_chars (dest
, 0x4400, 2);
6405 else if (count
!= 0 && (count
& 3) == 0)
6407 char *dest
= fragP
->fr_literal
+ fragP
->fr_fix
;
6411 if (count
> 4 * nop_limit
&& count
< 0x2000000)
6415 /* Make a branch, then follow with nops. Insert another
6416 frag to handle the nops. */
6417 md_number_to_chars (dest
, 0x48000000 + count
, 4);
6422 rest
= xmalloc (SIZEOF_STRUCT_FRAG
+ 4);
6423 memcpy (rest
, fragP
, SIZEOF_STRUCT_FRAG
);
6424 fragP
->fr_next
= rest
;
6426 rest
->fr_address
+= rest
->fr_fix
+ 4;
6428 /* If we leave the next frag as rs_align_code we'll come here
6429 again, resulting in a bunch of branches rather than a
6430 branch followed by nops. */
6431 rest
->fr_type
= rs_align
;
6432 dest
= rest
->fr_literal
;
6435 md_number_to_chars (dest
, 0x60000000, 4);
6437 if ((ppc_cpu
& PPC_OPCODE_POWER6
) != 0
6438 || (ppc_cpu
& PPC_OPCODE_POWER7
) != 0
6439 || (ppc_cpu
& PPC_OPCODE_POWER8
) != 0)
6441 /* For power6, power7 and power8, we want the last nop to be a group
6442 terminating one. Do this by inserting an rs_fill frag immediately
6443 after this one, with its address set to the last nop location.
6444 This will automatically reduce the number of nops in the current
6448 struct frag
*group_nop
= xmalloc (SIZEOF_STRUCT_FRAG
+ 4);
6450 memcpy (group_nop
, fragP
, SIZEOF_STRUCT_FRAG
);
6451 group_nop
->fr_address
= group_nop
->fr_next
->fr_address
- 4;
6452 group_nop
->fr_fix
= 0;
6453 group_nop
->fr_offset
= 1;
6454 group_nop
->fr_type
= rs_fill
;
6455 fragP
->fr_next
= group_nop
;
6456 dest
= group_nop
->fr_literal
;
6459 if ((ppc_cpu
& PPC_OPCODE_POWER7
) != 0
6460 || (ppc_cpu
& PPC_OPCODE_POWER8
) != 0)
6462 if (ppc_cpu
& PPC_OPCODE_E500MC
)
6463 /* e500mc group terminating nop: "ori 0,0,0". */
6464 md_number_to_chars (dest
, 0x60000000, 4);
6466 /* power7/power8 group terminating nop: "ori 2,2,0". */
6467 md_number_to_chars (dest
, 0x60420000, 4);
6470 /* power6 group terminating nop: "ori 1,1,0". */
6471 md_number_to_chars (dest
, 0x60210000, 4);
6476 /* Apply a fixup to the object code. This is called for all the
6477 fixups we generated by the calls to fix_new_exp, above. */
6480 md_apply_fix (fixS
*fixP
, valueT
*valP
, segT seg
)
6482 valueT value
= * valP
;
6484 const struct powerpc_operand
*operand
;
6487 if (fixP
->fx_addsy
!= NULL
)
6489 /* Hack around bfd_install_relocation brain damage. */
6491 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
6496 /* FIXME FIXME FIXME: The value we are passed in *valP includes
6497 the symbol values. If we are doing this relocation the code in
6498 write.c is going to call bfd_install_relocation, which is also
6499 going to use the symbol value. That means that if the reloc is
6500 fully resolved we want to use *valP since bfd_install_relocation is
6502 However, if the reloc is not fully resolved we do not want to
6503 use *valP, and must use fx_offset instead. If the relocation
6504 is PC-relative, we then need to re-apply md_pcrel_from_section
6505 to this new relocation value. */
6506 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
6511 value
= fixP
->fx_offset
;
6513 value
-= md_pcrel_from_section (fixP
, seg
);
6517 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
6519 /* We can't actually support subtracting a symbol. */
6520 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
6524 if (fixP
->fx_pcrel_adjust
!= 0)
6526 /* This is a fixup on an instruction. */
6527 int opindex
= fixP
->fx_pcrel_adjust
& 0xff;
6529 operand
= &powerpc_operands
[opindex
];
6531 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
6532 does not generate a reloc. It uses the offset of `sym' within its
6533 csect. Other usages, such as `.long sym', generate relocs. This
6534 is the documented behaviour of non-TOC symbols. */
6535 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
6536 && (operand
->bitm
& 0xfff0) == 0xfff0
6537 && operand
->shift
== 0
6538 && (operand
->insert
== NULL
|| ppc_obj64
)
6539 && fixP
->fx_addsy
!= NULL
6540 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
6541 && symbol_get_tc (fixP
->fx_addsy
)->symbol_class
!= XMC_TC
6542 && symbol_get_tc (fixP
->fx_addsy
)->symbol_class
!= XMC_TC0
6543 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
6545 value
= fixP
->fx_offset
;
6549 /* During parsing of instructions, a TOC16 reloc is generated for
6550 instructions such as 'lwz RT,SYM(RB)' if SYM is a symbol defined
6551 in the toc. But at parse time, SYM may be not yet defined, so
6552 check again here. */
6553 if (fixP
->fx_r_type
== BFD_RELOC_16
6554 && fixP
->fx_addsy
!= NULL
6555 && ppc_is_toc_sym (fixP
->fx_addsy
))
6556 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
6560 /* Calculate value to be stored in field. */
6562 switch (fixP
->fx_r_type
)
6565 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
6566 case BFD_RELOC_PPC_VLE_LO16A
:
6567 case BFD_RELOC_PPC_VLE_LO16D
:
6569 case BFD_RELOC_LO16
:
6570 case BFD_RELOC_LO16_PCREL
:
6571 fieldval
= value
& 0xffff;
6573 if (operand
!= NULL
&& (operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
6574 fieldval
= SEX16 (fieldval
);
6575 fixP
->fx_no_overflow
= 1;
6578 case BFD_RELOC_HI16
:
6579 case BFD_RELOC_HI16_PCREL
:
6581 if (REPORT_OVERFLOW_HI
&& ppc_obj64
)
6583 fieldval
= value
>> 16;
6584 if (operand
!= NULL
&& (operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
6586 valueT sign
= (((valueT
) -1 >> 16) + 1) >> 1;
6587 fieldval
= ((valueT
) fieldval
^ sign
) - sign
;
6593 case BFD_RELOC_PPC_VLE_HI16A
:
6594 case BFD_RELOC_PPC_VLE_HI16D
:
6595 case BFD_RELOC_PPC64_ADDR16_HIGH
:
6597 fieldval
= PPC_HI (value
);
6598 goto sign_extend_16
;
6600 case BFD_RELOC_HI16_S
:
6601 case BFD_RELOC_HI16_S_PCREL
:
6603 if (REPORT_OVERFLOW_HI
&& ppc_obj64
)
6605 fieldval
= (value
+ 0x8000) >> 16;
6606 if (operand
!= NULL
&& (operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
6608 valueT sign
= (((valueT
) -1 >> 16) + 1) >> 1;
6609 fieldval
= ((valueT
) fieldval
^ sign
) - sign
;
6615 case BFD_RELOC_PPC_VLE_HA16A
:
6616 case BFD_RELOC_PPC_VLE_HA16D
:
6617 case BFD_RELOC_PPC64_ADDR16_HIGHA
:
6619 fieldval
= PPC_HA (value
);
6620 goto sign_extend_16
;
6623 case BFD_RELOC_PPC64_HIGHER
:
6624 fieldval
= PPC_HIGHER (value
);
6625 goto sign_extend_16
;
6627 case BFD_RELOC_PPC64_HIGHER_S
:
6628 fieldval
= PPC_HIGHERA (value
);
6629 goto sign_extend_16
;
6631 case BFD_RELOC_PPC64_HIGHEST
:
6632 fieldval
= PPC_HIGHEST (value
);
6633 goto sign_extend_16
;
6635 case BFD_RELOC_PPC64_HIGHEST_S
:
6636 fieldval
= PPC_HIGHESTA (value
);
6637 goto sign_extend_16
;
6644 if (operand
!= NULL
)
6646 /* Handle relocs in an insn. */
6650 switch (fixP
->fx_r_type
)
6653 /* The following relocs can't be calculated by the assembler.
6654 Leave the field zero. */
6655 case BFD_RELOC_PPC_TPREL16
:
6656 case BFD_RELOC_PPC_TPREL16_LO
:
6657 case BFD_RELOC_PPC_TPREL16_HI
:
6658 case BFD_RELOC_PPC_TPREL16_HA
:
6659 case BFD_RELOC_PPC_DTPREL16
:
6660 case BFD_RELOC_PPC_DTPREL16_LO
:
6661 case BFD_RELOC_PPC_DTPREL16_HI
:
6662 case BFD_RELOC_PPC_DTPREL16_HA
:
6663 case BFD_RELOC_PPC_GOT_TLSGD16
:
6664 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
6665 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
6666 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
6667 case BFD_RELOC_PPC_GOT_TLSLD16
:
6668 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
6669 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
6670 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
6671 case BFD_RELOC_PPC_GOT_TPREL16
:
6672 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
6673 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
6674 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
6675 case BFD_RELOC_PPC_GOT_DTPREL16
:
6676 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
6677 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
6678 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
6679 case BFD_RELOC_PPC64_TPREL16_DS
:
6680 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
6681 case BFD_RELOC_PPC64_TPREL16_HIGH
:
6682 case BFD_RELOC_PPC64_TPREL16_HIGHA
:
6683 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
6684 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
6685 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
6686 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
6687 case BFD_RELOC_PPC64_DTPREL16_HIGH
:
6688 case BFD_RELOC_PPC64_DTPREL16_HIGHA
:
6689 case BFD_RELOC_PPC64_DTPREL16_DS
:
6690 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
6691 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
6692 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
6693 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
6694 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
6695 gas_assert (fixP
->fx_addsy
!= NULL
);
6696 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
6700 /* These also should leave the field zero for the same
6701 reason. Note that older versions of gas wrote values
6702 here. If we want to go back to the old behaviour, then
6703 all _LO and _LO_DS cases will need to be treated like
6704 BFD_RELOC_LO16_PCREL above. Similarly for _HI etc. */
6705 case BFD_RELOC_16_GOTOFF
:
6706 case BFD_RELOC_LO16_GOTOFF
:
6707 case BFD_RELOC_HI16_GOTOFF
:
6708 case BFD_RELOC_HI16_S_GOTOFF
:
6709 case BFD_RELOC_LO16_PLTOFF
:
6710 case BFD_RELOC_HI16_PLTOFF
:
6711 case BFD_RELOC_HI16_S_PLTOFF
:
6712 case BFD_RELOC_GPREL16
:
6713 case BFD_RELOC_16_BASEREL
:
6714 case BFD_RELOC_LO16_BASEREL
:
6715 case BFD_RELOC_HI16_BASEREL
:
6716 case BFD_RELOC_HI16_S_BASEREL
:
6717 case BFD_RELOC_PPC_TOC16
:
6718 case BFD_RELOC_PPC64_TOC16_LO
:
6719 case BFD_RELOC_PPC64_TOC16_HI
:
6720 case BFD_RELOC_PPC64_TOC16_HA
:
6721 case BFD_RELOC_PPC64_PLTGOT16
:
6722 case BFD_RELOC_PPC64_PLTGOT16_LO
:
6723 case BFD_RELOC_PPC64_PLTGOT16_HI
:
6724 case BFD_RELOC_PPC64_PLTGOT16_HA
:
6725 case BFD_RELOC_PPC64_GOT16_DS
:
6726 case BFD_RELOC_PPC64_GOT16_LO_DS
:
6727 case BFD_RELOC_PPC64_PLT16_LO_DS
:
6728 case BFD_RELOC_PPC64_SECTOFF_DS
:
6729 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
6730 case BFD_RELOC_PPC64_TOC16_DS
:
6731 case BFD_RELOC_PPC64_TOC16_LO_DS
:
6732 case BFD_RELOC_PPC64_PLTGOT16_DS
:
6733 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
6734 case BFD_RELOC_PPC_EMB_NADDR16
:
6735 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
6736 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
6737 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
6738 case BFD_RELOC_PPC_EMB_SDAI16
:
6739 case BFD_RELOC_PPC_EMB_SDA2I16
:
6740 case BFD_RELOC_PPC_EMB_SDA2REL
:
6741 case BFD_RELOC_PPC_EMB_SDA21
:
6742 case BFD_RELOC_PPC_EMB_MRKREF
:
6743 case BFD_RELOC_PPC_EMB_RELSEC16
:
6744 case BFD_RELOC_PPC_EMB_RELST_LO
:
6745 case BFD_RELOC_PPC_EMB_RELST_HI
:
6746 case BFD_RELOC_PPC_EMB_RELST_HA
:
6747 case BFD_RELOC_PPC_EMB_BIT_FLD
:
6748 case BFD_RELOC_PPC_EMB_RELSDA
:
6749 case BFD_RELOC_PPC_VLE_SDA21
:
6750 case BFD_RELOC_PPC_VLE_SDA21_LO
:
6751 case BFD_RELOC_PPC_VLE_SDAREL_LO16A
:
6752 case BFD_RELOC_PPC_VLE_SDAREL_LO16D
:
6753 case BFD_RELOC_PPC_VLE_SDAREL_HI16A
:
6754 case BFD_RELOC_PPC_VLE_SDAREL_HI16D
:
6755 case BFD_RELOC_PPC_VLE_SDAREL_HA16A
:
6756 case BFD_RELOC_PPC_VLE_SDAREL_HA16D
:
6757 gas_assert (fixP
->fx_addsy
!= NULL
);
6760 case BFD_RELOC_PPC_TLS
:
6761 case BFD_RELOC_PPC_TLSGD
:
6762 case BFD_RELOC_PPC_TLSLD
:
6768 case BFD_RELOC_PPC_B16
:
6769 /* Adjust the offset to the instruction boundary. */
6774 case BFD_RELOC_VTABLE_INHERIT
:
6775 case BFD_RELOC_VTABLE_ENTRY
:
6776 case BFD_RELOC_PPC_DTPMOD
:
6777 case BFD_RELOC_PPC_TPREL
:
6778 case BFD_RELOC_PPC_DTPREL
:
6779 case BFD_RELOC_PPC_COPY
:
6780 case BFD_RELOC_PPC_GLOB_DAT
:
6781 case BFD_RELOC_32_PLT_PCREL
:
6782 case BFD_RELOC_PPC_EMB_NADDR32
:
6783 case BFD_RELOC_PPC64_TOC
:
6784 case BFD_RELOC_CTOR
:
6786 case BFD_RELOC_32_PCREL
:
6789 case BFD_RELOC_64_PCREL
:
6790 case BFD_RELOC_PPC64_ADDR64_LOCAL
:
6791 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6792 _("%s unsupported as instruction fixup"),
6793 bfd_get_reloc_code_name (fixP
->fx_r_type
));
6802 /* powerpc uses RELA style relocs, so if emitting a reloc the field
6803 contents can stay at zero. */
6804 #define APPLY_RELOC fixP->fx_done
6806 #define APPLY_RELOC 1
6808 if ((fieldval
!= 0 && APPLY_RELOC
) || operand
->insert
!= NULL
)
6810 /* Fetch the instruction, insert the fully resolved operand
6811 value, and stuff the instruction back again. */
6812 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
6813 if (target_big_endian
)
6815 if (fixP
->fx_size
== 4)
6816 insn
= bfd_getb32 ((unsigned char *) where
);
6818 insn
= bfd_getb16 ((unsigned char *) where
);
6822 if (fixP
->fx_size
== 4)
6823 insn
= bfd_getl32 ((unsigned char *) where
);
6825 insn
= bfd_getl16 ((unsigned char *) where
);
6827 insn
= ppc_insert_operand (insn
, operand
, fieldval
,
6828 fixP
->tc_fix_data
.ppc_cpu
,
6829 fixP
->fx_file
, fixP
->fx_line
);
6830 if (target_big_endian
)
6832 if (fixP
->fx_size
== 4)
6833 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
6835 bfd_putb16 ((bfd_vma
) insn
, (unsigned char *) where
);
6839 if (fixP
->fx_size
== 4)
6840 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
6842 bfd_putl16 ((bfd_vma
) insn
, (unsigned char *) where
);
6847 /* Nothing else to do here. */
6850 gas_assert (fixP
->fx_addsy
!= NULL
);
6851 if (fixP
->fx_r_type
== BFD_RELOC_NONE
)
6856 /* Use expr_symbol_where to see if this is an expression
6858 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
6859 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6860 _("unresolved expression that must be resolved"));
6862 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6863 _("unsupported relocation against %s"),
6864 S_GET_NAME (fixP
->fx_addsy
));
6871 /* Handle relocs in data. */
6872 switch (fixP
->fx_r_type
)
6874 case BFD_RELOC_VTABLE_INHERIT
:
6876 && !S_IS_DEFINED (fixP
->fx_addsy
)
6877 && !S_IS_WEAK (fixP
->fx_addsy
))
6878 S_SET_WEAK (fixP
->fx_addsy
);
6881 case BFD_RELOC_VTABLE_ENTRY
:
6886 /* These can appear with @l etc. in data. */
6887 case BFD_RELOC_LO16
:
6888 case BFD_RELOC_LO16_PCREL
:
6889 case BFD_RELOC_HI16
:
6890 case BFD_RELOC_HI16_PCREL
:
6891 case BFD_RELOC_HI16_S
:
6892 case BFD_RELOC_HI16_S_PCREL
:
6893 case BFD_RELOC_PPC64_HIGHER
:
6894 case BFD_RELOC_PPC64_HIGHER_S
:
6895 case BFD_RELOC_PPC64_HIGHEST
:
6896 case BFD_RELOC_PPC64_HIGHEST_S
:
6897 case BFD_RELOC_PPC64_ADDR16_HIGH
:
6898 case BFD_RELOC_PPC64_ADDR16_HIGHA
:
6899 case BFD_RELOC_PPC64_ADDR64_LOCAL
:
6902 case BFD_RELOC_PPC_DTPMOD
:
6903 case BFD_RELOC_PPC_TPREL
:
6904 case BFD_RELOC_PPC_DTPREL
:
6905 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
6908 /* Just punt all of these to the linker. */
6909 case BFD_RELOC_PPC_B16_BRTAKEN
:
6910 case BFD_RELOC_PPC_B16_BRNTAKEN
:
6911 case BFD_RELOC_16_GOTOFF
:
6912 case BFD_RELOC_LO16_GOTOFF
:
6913 case BFD_RELOC_HI16_GOTOFF
:
6914 case BFD_RELOC_HI16_S_GOTOFF
:
6915 case BFD_RELOC_LO16_PLTOFF
:
6916 case BFD_RELOC_HI16_PLTOFF
:
6917 case BFD_RELOC_HI16_S_PLTOFF
:
6918 case BFD_RELOC_PPC_COPY
:
6919 case BFD_RELOC_PPC_GLOB_DAT
:
6920 case BFD_RELOC_16_BASEREL
:
6921 case BFD_RELOC_LO16_BASEREL
:
6922 case BFD_RELOC_HI16_BASEREL
:
6923 case BFD_RELOC_HI16_S_BASEREL
:
6924 case BFD_RELOC_PPC_TLS
:
6925 case BFD_RELOC_PPC_DTPREL16_LO
:
6926 case BFD_RELOC_PPC_DTPREL16_HI
:
6927 case BFD_RELOC_PPC_DTPREL16_HA
:
6928 case BFD_RELOC_PPC_TPREL16_LO
:
6929 case BFD_RELOC_PPC_TPREL16_HI
:
6930 case BFD_RELOC_PPC_TPREL16_HA
:
6931 case BFD_RELOC_PPC_GOT_TLSGD16
:
6932 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
6933 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
6934 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
6935 case BFD_RELOC_PPC_GOT_TLSLD16
:
6936 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
6937 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
6938 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
6939 case BFD_RELOC_PPC_GOT_DTPREL16
:
6940 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
6941 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
6942 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
6943 case BFD_RELOC_PPC_GOT_TPREL16
:
6944 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
6945 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
6946 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
6947 case BFD_RELOC_24_PLT_PCREL
:
6948 case BFD_RELOC_PPC_LOCAL24PC
:
6949 case BFD_RELOC_32_PLT_PCREL
:
6950 case BFD_RELOC_GPREL16
:
6951 case BFD_RELOC_PPC_VLE_SDAREL_LO16A
:
6952 case BFD_RELOC_PPC_VLE_SDAREL_HI16A
:
6953 case BFD_RELOC_PPC_VLE_SDAREL_HA16A
:
6954 case BFD_RELOC_PPC_EMB_NADDR32
:
6955 case BFD_RELOC_PPC_EMB_NADDR16
:
6956 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
6957 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
6958 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
6959 case BFD_RELOC_PPC_EMB_SDAI16
:
6960 case BFD_RELOC_PPC_EMB_SDA2REL
:
6961 case BFD_RELOC_PPC_EMB_SDA2I16
:
6962 case BFD_RELOC_PPC_EMB_SDA21
:
6963 case BFD_RELOC_PPC_VLE_SDA21_LO
:
6964 case BFD_RELOC_PPC_EMB_MRKREF
:
6965 case BFD_RELOC_PPC_EMB_RELSEC16
:
6966 case BFD_RELOC_PPC_EMB_RELST_LO
:
6967 case BFD_RELOC_PPC_EMB_RELST_HI
:
6968 case BFD_RELOC_PPC_EMB_RELST_HA
:
6969 case BFD_RELOC_PPC_EMB_BIT_FLD
:
6970 case BFD_RELOC_PPC_EMB_RELSDA
:
6971 case BFD_RELOC_PPC64_TOC
:
6972 case BFD_RELOC_PPC_TOC16
:
6973 case BFD_RELOC_PPC64_TOC16_LO
:
6974 case BFD_RELOC_PPC64_TOC16_HI
:
6975 case BFD_RELOC_PPC64_TOC16_HA
:
6976 case BFD_RELOC_PPC64_DTPREL16_HIGH
:
6977 case BFD_RELOC_PPC64_DTPREL16_HIGHA
:
6978 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
6979 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
6980 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
6981 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
6982 case BFD_RELOC_PPC64_TPREL16_HIGH
:
6983 case BFD_RELOC_PPC64_TPREL16_HIGHA
:
6984 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
6985 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
6986 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
6987 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
6993 case BFD_RELOC_NONE
:
6995 case BFD_RELOC_CTOR
:
6997 case BFD_RELOC_32_PCREL
:
7000 case BFD_RELOC_64_PCREL
:
7002 case BFD_RELOC_16_PCREL
:
7008 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
7013 if (fixP
->fx_size
&& APPLY_RELOC
)
7014 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
7015 fieldval
, fixP
->fx_size
);
7017 && (seg
->flags
& SEC_CODE
) != 0
7018 && fixP
->fx_size
== 4
7021 && (fixP
->fx_r_type
== BFD_RELOC_32
7022 || fixP
->fx_r_type
== BFD_RELOC_CTOR
7023 || fixP
->fx_r_type
== BFD_RELOC_32_PCREL
))
7024 as_warn_where (fixP
->fx_file
, fixP
->fx_line
,
7025 _("data in executable section"));
7028 /* We are only able to convert some relocs to pc-relative. */
7029 if (!fixP
->fx_done
&& fixP
->fx_pcrel
)
7031 switch (fixP
->fx_r_type
)
7033 case BFD_RELOC_LO16
:
7034 fixP
->fx_r_type
= BFD_RELOC_LO16_PCREL
;
7037 case BFD_RELOC_HI16
:
7038 fixP
->fx_r_type
= BFD_RELOC_HI16_PCREL
;
7041 case BFD_RELOC_HI16_S
:
7042 fixP
->fx_r_type
= BFD_RELOC_HI16_S_PCREL
;
7046 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
7050 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
7054 fixP
->fx_r_type
= BFD_RELOC_16_PCREL
;
7057 /* Some of course are already pc-relative. */
7058 case BFD_RELOC_LO16_PCREL
:
7059 case BFD_RELOC_HI16_PCREL
:
7060 case BFD_RELOC_HI16_S_PCREL
:
7061 case BFD_RELOC_64_PCREL
:
7062 case BFD_RELOC_32_PCREL
:
7063 case BFD_RELOC_16_PCREL
:
7064 case BFD_RELOC_PPC_B16
:
7065 case BFD_RELOC_PPC_B16_BRTAKEN
:
7066 case BFD_RELOC_PPC_B16_BRNTAKEN
:
7067 case BFD_RELOC_PPC_B26
:
7068 case BFD_RELOC_PPC_LOCAL24PC
:
7069 case BFD_RELOC_24_PLT_PCREL
:
7070 case BFD_RELOC_32_PLT_PCREL
:
7071 case BFD_RELOC_64_PLT_PCREL
:
7072 case BFD_RELOC_PPC_VLE_REL8
:
7073 case BFD_RELOC_PPC_VLE_REL15
:
7074 case BFD_RELOC_PPC_VLE_REL24
:
7083 /* Use expr_symbol_where to see if this is an
7084 expression symbol. */
7085 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
7086 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
7087 _("unresolved expression that must"
7090 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
7091 _("cannot emit PC relative %s relocation"
7093 bfd_get_reloc_code_name (fixP
->fx_r_type
),
7094 S_GET_NAME (fixP
->fx_addsy
));
7097 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
7098 _("unable to resolve expression"));
7105 ppc_elf_validate_fix (fixP
, seg
);
7106 fixP
->fx_addnumber
= value
;
7108 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
7109 from the section contents. If we are going to be emitting a reloc
7110 then the section contents are immaterial, so don't warn if they
7111 happen to overflow. Leave such warnings to ld. */
7114 fixP
->fx_no_overflow
= 1;
7116 /* Arrange to emit .TOC. as a normal symbol if used in anything
7117 but .TOC.@tocbase. */
7119 && fixP
->fx_r_type
!= BFD_RELOC_PPC64_TOC
7120 && fixP
->fx_addsy
!= NULL
7121 && strcmp (S_GET_NAME (fixP
->fx_addsy
), ".TOC.") == 0)
7122 symbol_get_bfdsym (fixP
->fx_addsy
)->flags
|= BSF_KEEP
;
7125 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
7126 fixP
->fx_addnumber
= 0;
7130 fixP
->fx_addnumber
= 0;
7132 /* We want to use the offset within the toc, not the actual VMA
7134 fixP
->fx_addnumber
=
7135 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
))
7136 - S_GET_VALUE (ppc_toc_csect
);
7137 /* Set *valP to avoid errors. */
7144 /* Generate a reloc for a fixup. */
7147 tc_gen_reloc (asection
*seg ATTRIBUTE_UNUSED
, fixS
*fixp
)
7151 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
7153 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
7154 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
7155 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
7156 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
7157 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
7159 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
7160 _("reloc %d not supported by object file format"),
7161 (int) fixp
->fx_r_type
);
7164 reloc
->addend
= fixp
->fx_addnumber
;
7170 ppc_cfi_frame_initial_instructions (void)
7172 cfi_add_CFA_def_cfa (1, 0);
7176 tc_ppc_regname_to_dw2regnum (char *regname
)
7178 unsigned int regnum
= -1;
7182 static struct { char *name
; int dw2regnum
; } regnames
[] =
7184 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
7185 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
7186 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
7187 { "spe_acc", 111 }, { "spefscr", 112 }
7190 for (i
= 0; i
< ARRAY_SIZE (regnames
); ++i
)
7191 if (strcmp (regnames
[i
].name
, regname
) == 0)
7192 return regnames
[i
].dw2regnum
;
7194 if (regname
[0] == 'r' || regname
[0] == 'f' || regname
[0] == 'v')
7196 p
= regname
+ 1 + (regname
[1] == '.');
7197 regnum
= strtoul (p
, &q
, 10);
7198 if (p
== q
|| *q
|| regnum
>= 32)
7200 if (regname
[0] == 'f')
7202 else if (regname
[0] == 'v')
7205 else if (regname
[0] == 'c' && regname
[1] == 'r')
7207 p
= regname
+ 2 + (regname
[2] == '.');
7208 if (p
[0] < '0' || p
[0] > '7' || p
[1])
7210 regnum
= p
[0] - '0' + 68;