1 /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000)
2 Copyright (C) 1994-2014 Free Software Foundation, Inc.
3 Written by Ian Lance Taylor, Cygnus Support.
5 This file is part of GAS, the GNU Assembler.
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
23 #include "safe-ctype.h"
25 #include "dw2gencfi.h"
26 #include "opcode/ppc.h"
30 #include "elf/ppc64.h"
31 #include "dwarf2dbg.h"
39 #include "coff/xcoff.h"
43 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
45 /* Tell the main code what the endianness is. */
46 extern int target_big_endian
;
48 /* Whether or not, we've set target_big_endian. */
49 static int set_target_endian
= 0;
51 /* Whether to use user friendly register names. */
52 #ifndef TARGET_REG_NAMES_P
54 #define TARGET_REG_NAMES_P TRUE
56 #define TARGET_REG_NAMES_P FALSE
60 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
63 /* #lo(value) denotes the least significant 16 bits of the indicated. */
64 #define PPC_LO(v) ((v) & 0xffff)
66 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
67 #define PPC_HI(v) (((v) >> 16) & 0xffff)
69 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
70 the indicated value, compensating for #lo() being treated as a
72 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
74 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
75 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
77 /* #highera(value) denotes bits 32 through 47 of the indicated value,
78 compensating for #lo() being treated as a signed number. */
79 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
81 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
82 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
84 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
85 compensating for #lo being treated as a signed number. */
86 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
88 #define SEX16(val) (((val) ^ 0x8000) - 0x8000)
90 /* For the time being on ppc64, don't report overflow on @h and @ha
91 applied to constants. */
92 #define REPORT_OVERFLOW_HI 0
94 static bfd_boolean reg_names_p
= TARGET_REG_NAMES_P
;
96 static void ppc_macro (char *, const struct powerpc_macro
*);
97 static void ppc_byte (int);
99 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
100 static void ppc_tc (int);
101 static void ppc_machine (int);
105 static void ppc_comm (int);
106 static void ppc_bb (int);
107 static void ppc_bc (int);
108 static void ppc_bf (int);
109 static void ppc_biei (int);
110 static void ppc_bs (int);
111 static void ppc_eb (int);
112 static void ppc_ec (int);
113 static void ppc_ef (int);
114 static void ppc_es (int);
115 static void ppc_csect (int);
116 static void ppc_dwsect (int);
117 static void ppc_change_csect (symbolS
*, offsetT
);
118 static void ppc_function (int);
119 static void ppc_extern (int);
120 static void ppc_lglobl (int);
121 static void ppc_ref (int);
122 static void ppc_section (int);
123 static void ppc_named_section (int);
124 static void ppc_stabx (int);
125 static void ppc_rename (int);
126 static void ppc_toc (int);
127 static void ppc_xcoff_cons (int);
128 static void ppc_vbyte (int);
132 static void ppc_elf_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 if (opcode
->flags
& PPC_OPCODE_VLE
)
3373 ppc_apuinfo_section_add (PPC_APUINFO_VLE
, 1);
3377 /* Write out the instruction. */
3378 /* Differentiate between two and four byte insns. */
3379 if (ppc_mach () == bfd_mach_ppc_vle
)
3381 if (PPC_OP_SE_VLE (insn
))
3385 addr_mod
= frag_now_fix () & 1;
3390 addr_mod
= frag_now_fix () & 3;
3392 /* All instructions can start on a 2 byte boundary for VLE. */
3393 f
= frag_more (insn_length
);
3394 if (frag_now
->has_code
&& frag_now
->insn_addr
!= addr_mod
)
3396 if (ppc_mach() == bfd_mach_ppc_vle
)
3397 as_bad (_("instruction address is not a multiple of 2"));
3399 as_bad (_("instruction address is not a multiple of 4"));
3401 frag_now
->insn_addr
= addr_mod
;
3402 frag_now
->has_code
= 1;
3403 md_number_to_chars (f
, insn
, insn_length
);
3406 last_subseg
= now_subseg
;
3409 dwarf2_emit_insn (insn_length
);
3412 /* Create any fixups. */
3413 for (i
= 0; i
< fc
; i
++)
3416 if (fixups
[i
].reloc
!= BFD_RELOC_NONE
)
3418 reloc_howto_type
*reloc_howto
;
3422 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
3426 size
= bfd_get_reloc_size (reloc_howto
);
3427 offset
= target_big_endian
? (insn_length
- size
) : 0;
3429 if (size
< 1 || size
> 4)
3432 fixP
= fix_new_exp (frag_now
,
3433 f
- frag_now
->fr_literal
+ offset
,
3436 reloc_howto
->pc_relative
,
3441 const struct powerpc_operand
*operand
;
3443 operand
= &powerpc_operands
[fixups
[i
].opindex
];
3444 fixP
= fix_new_exp (frag_now
,
3445 f
- frag_now
->fr_literal
,
3448 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
3451 fixP
->fx_pcrel_adjust
= fixups
[i
].opindex
;
3455 /* Handle a macro. Gather all the operands, transform them as
3456 described by the macro, and call md_assemble recursively. All the
3457 operands are separated by commas; we don't accept parentheses
3458 around operands here. */
3461 ppc_macro (char *str
, const struct powerpc_macro
*macro
)
3472 /* Gather the users operands into the operands array. */
3477 if (count
>= sizeof operands
/ sizeof operands
[0])
3479 operands
[count
++] = s
;
3480 s
= strchr (s
, ',');
3481 if (s
== (char *) NULL
)
3486 if (count
!= macro
->operands
)
3488 as_bad (_("wrong number of operands"));
3492 /* Work out how large the string must be (the size is unbounded
3493 because it includes user input). */
3495 format
= macro
->format
;
3496 while (*format
!= '\0')
3505 arg
= strtol (format
+ 1, &send
, 10);
3506 know (send
!= format
&& arg
< count
);
3507 len
+= strlen (operands
[arg
]);
3512 /* Put the string together. */
3513 complete
= s
= (char *) alloca (len
+ 1);
3514 format
= macro
->format
;
3515 while (*format
!= '\0')
3521 arg
= strtol (format
+ 1, &send
, 10);
3522 strcpy (s
, operands
[arg
]);
3529 /* Assemble the constructed instruction. */
3530 md_assemble (complete
);
3534 /* For ELF, add support for SHT_ORDERED. */
3537 ppc_section_type (char *str
, size_t len
)
3539 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
3546 ppc_section_flags (flagword flags
, bfd_vma attr ATTRIBUTE_UNUSED
, int type
)
3548 if (type
== SHT_ORDERED
)
3549 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
3553 #endif /* OBJ_ELF */
3556 /* Pseudo-op handling. */
3558 /* The .byte pseudo-op. This is similar to the normal .byte
3559 pseudo-op, but it can also take a single ASCII string. */
3562 ppc_byte (int ignore ATTRIBUTE_UNUSED
)
3566 if (*input_line_pointer
!= '\"')
3572 /* Gather characters. A real double quote is doubled. Unusual
3573 characters are not permitted. */
3574 ++input_line_pointer
;
3579 c
= *input_line_pointer
++;
3583 if (*input_line_pointer
!= '\"')
3585 ++input_line_pointer
;
3588 FRAG_APPEND_1_CHAR (c
);
3592 if (warn_476
&& count
!= 0 && (now_seg
->flags
& SEC_CODE
) != 0)
3593 as_warn (_("data in executable section"));
3594 demand_empty_rest_of_line ();
3599 /* XCOFF specific pseudo-op handling. */
3601 /* This is set if we are creating a .stabx symbol, since we don't want
3602 to handle symbol suffixes for such symbols. */
3603 static bfd_boolean ppc_stab_symbol
;
3605 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
3606 symbols in the .bss segment as though they were local common
3607 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3608 aligns .comm and .lcomm to 4 bytes. */
3611 ppc_comm (int lcomm
)
3613 asection
*current_seg
= now_seg
;
3614 subsegT current_subseg
= now_subseg
;
3620 symbolS
*lcomm_sym
= NULL
;
3624 name
= input_line_pointer
;
3625 endc
= get_symbol_end ();
3626 end_name
= input_line_pointer
;
3629 if (*input_line_pointer
!= ',')
3631 as_bad (_("missing size"));
3632 ignore_rest_of_line ();
3635 ++input_line_pointer
;
3637 size
= get_absolute_expression ();
3640 as_bad (_("negative size"));
3641 ignore_rest_of_line ();
3647 /* The third argument to .comm is the alignment. */
3648 if (*input_line_pointer
!= ',')
3652 ++input_line_pointer
;
3653 align
= get_absolute_expression ();
3656 as_warn (_("ignoring bad alignment"));
3666 /* The third argument to .lcomm appears to be the real local
3667 common symbol to create. References to the symbol named in
3668 the first argument are turned into references to the third
3670 if (*input_line_pointer
!= ',')
3672 as_bad (_("missing real symbol name"));
3673 ignore_rest_of_line ();
3676 ++input_line_pointer
;
3678 lcomm_name
= input_line_pointer
;
3679 lcomm_endc
= get_symbol_end ();
3681 lcomm_sym
= symbol_find_or_make (lcomm_name
);
3683 *input_line_pointer
= lcomm_endc
;
3685 /* The fourth argument to .lcomm is the alignment. */
3686 if (*input_line_pointer
!= ',')
3695 ++input_line_pointer
;
3696 align
= get_absolute_expression ();
3699 as_warn (_("ignoring bad alignment"));
3706 sym
= symbol_find_or_make (name
);
3709 if (S_IS_DEFINED (sym
)
3710 || S_GET_VALUE (sym
) != 0)
3712 as_bad (_("attempt to redefine symbol"));
3713 ignore_rest_of_line ();
3717 record_alignment (bss_section
, align
);
3720 || ! S_IS_DEFINED (lcomm_sym
))
3729 S_SET_EXTERNAL (sym
);
3733 symbol_get_tc (lcomm_sym
)->output
= 1;
3734 def_sym
= lcomm_sym
;
3738 subseg_set (bss_section
, 1);
3739 frag_align (align
, 0, 0);
3741 symbol_set_frag (def_sym
, frag_now
);
3742 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
3743 def_size
, (char *) NULL
);
3745 S_SET_SEGMENT (def_sym
, bss_section
);
3746 symbol_get_tc (def_sym
)->align
= align
;
3750 /* Align the size of lcomm_sym. */
3751 symbol_get_frag (lcomm_sym
)->fr_offset
=
3752 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
3753 &~ ((1 << align
) - 1));
3754 if (align
> symbol_get_tc (lcomm_sym
)->align
)
3755 symbol_get_tc (lcomm_sym
)->align
= align
;
3760 /* Make sym an offset from lcomm_sym. */
3761 S_SET_SEGMENT (sym
, bss_section
);
3762 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
3763 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
3764 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
3767 subseg_set (current_seg
, current_subseg
);
3769 demand_empty_rest_of_line ();
3772 /* The .csect pseudo-op. This switches us into a different
3773 subsegment. The first argument is a symbol whose value is the
3774 start of the .csect. In COFF, csect symbols get special aux
3775 entries defined by the x_csect field of union internal_auxent. The
3776 optional second argument is the alignment (the default is 2). */
3779 ppc_csect (int ignore ATTRIBUTE_UNUSED
)
3786 name
= input_line_pointer
;
3787 endc
= get_symbol_end ();
3789 sym
= symbol_find_or_make (name
);
3791 *input_line_pointer
= endc
;
3793 if (S_GET_NAME (sym
)[0] == '\0')
3795 /* An unnamed csect is assumed to be [PR]. */
3796 symbol_get_tc (sym
)->symbol_class
= XMC_PR
;
3800 if (*input_line_pointer
== ',')
3802 ++input_line_pointer
;
3803 align
= get_absolute_expression ();
3806 ppc_change_csect (sym
, align
);
3808 demand_empty_rest_of_line ();
3811 /* Change to a different csect. */
3814 ppc_change_csect (symbolS
*sym
, offsetT align
)
3816 if (S_IS_DEFINED (sym
))
3817 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
3827 /* This is a new csect. We need to look at the symbol class to
3828 figure out whether it should go in the text section or the
3832 switch (symbol_get_tc (sym
)->symbol_class
)
3842 S_SET_SEGMENT (sym
, text_section
);
3843 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
3844 ++ppc_text_subsegment
;
3845 list_ptr
= &ppc_text_csects
;
3855 if (ppc_toc_csect
!= NULL
3856 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
3857 == ppc_data_subsegment
))
3859 S_SET_SEGMENT (sym
, data_section
);
3860 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
3861 ++ppc_data_subsegment
;
3862 list_ptr
= &ppc_data_csects
;
3868 /* We set the obstack chunk size to a small value before
3869 changing subsegments, so that we don't use a lot of memory
3870 space for what may be a small section. */
3871 hold_chunksize
= chunksize
;
3874 sec
= subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3875 symbol_get_tc (sym
)->subseg
);
3877 chunksize
= hold_chunksize
;
3880 ppc_after_toc_frag
= frag_now
;
3882 record_alignment (sec
, align
);
3884 frag_align_code (align
, 0);
3886 frag_align (align
, 0, 0);
3888 symbol_set_frag (sym
, frag_now
);
3889 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3891 symbol_get_tc (sym
)->align
= align
;
3892 symbol_get_tc (sym
)->output
= 1;
3893 symbol_get_tc (sym
)->within
= sym
;
3895 for (list
= *list_ptr
;
3896 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3897 list
= symbol_get_tc (list
)->next
)
3899 symbol_get_tc (list
)->next
= sym
;
3901 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3902 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3906 ppc_current_csect
= sym
;
3910 ppc_change_debug_section (unsigned int idx
, subsegT subseg
)
3914 const struct xcoff_dwsect_name
*dw
= &xcoff_dwsect_names
[idx
];
3916 sec
= subseg_new (dw
->name
, subseg
);
3917 oldflags
= bfd_get_section_flags (stdoutput
, sec
);
3918 if (oldflags
== SEC_NO_FLAGS
)
3920 /* Just created section. */
3921 gas_assert (dw_sections
[idx
].sect
== NULL
);
3923 bfd_set_section_flags (stdoutput
, sec
, SEC_DEBUGGING
);
3924 bfd_set_section_alignment (stdoutput
, sec
, 0);
3925 dw_sections
[idx
].sect
= sec
;
3928 /* Not anymore in a csect. */
3929 ppc_current_csect
= NULL
;
3932 /* The .dwsect pseudo-op. Defines a DWARF section. Syntax is:
3933 .dwsect flag [, opt-label ]
3937 ppc_dwsect (int ignore ATTRIBUTE_UNUSED
)
3941 const struct xcoff_dwsect_name
*dw
;
3942 struct dw_subsection
*subseg
;
3943 struct dw_section
*dws
;
3947 flag
= get_absolute_expression ();
3949 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
3950 if (xcoff_dwsect_names
[i
].flag
== flag
)
3952 dw
= &xcoff_dwsect_names
[i
];
3956 /* Parse opt-label. */
3957 if (*input_line_pointer
== ',')
3962 ++input_line_pointer
;
3964 label
= input_line_pointer
;
3965 c
= get_symbol_end ();
3966 opt_label
= symbol_find_or_make (label
);
3967 *input_line_pointer
= c
;
3972 demand_empty_rest_of_line ();
3974 /* Return now in case of unknown subsection. */
3977 as_bad (_("no known dwarf XCOFF section for flag 0x%08x\n"),
3982 /* Find the subsection. */
3983 dws
= &dw_sections
[i
];
3985 if (opt_label
!= NULL
&& S_IS_DEFINED (opt_label
))
3987 /* Sanity check (note that in theory S_GET_SEGMENT mustn't be null). */
3988 if (dws
->sect
== NULL
|| S_GET_SEGMENT (opt_label
) != dws
->sect
)
3990 as_bad (_("label %s was not defined in this dwarf section"),
3991 S_GET_NAME (opt_label
));
3992 subseg
= dws
->anon_subseg
;
3996 subseg
= symbol_get_tc (opt_label
)->u
.dw
;
4001 /* Switch to the subsection. */
4002 ppc_change_debug_section (i
, subseg
->subseg
);
4006 /* Create a new dw subsection. */
4007 subseg
= (struct dw_subsection
*)
4008 xmalloc (sizeof (struct dw_subsection
));
4010 if (opt_label
== NULL
)
4012 /* The anonymous one. */
4014 subseg
->link
= NULL
;
4015 dws
->anon_subseg
= subseg
;
4020 if (dws
->list_subseg
!= NULL
)
4021 subseg
->subseg
= dws
->list_subseg
->subseg
+ 1;
4025 subseg
->link
= dws
->list_subseg
;
4026 dws
->list_subseg
= subseg
;
4027 symbol_get_tc (opt_label
)->u
.dw
= subseg
;
4030 ppc_change_debug_section (i
, subseg
->subseg
);
4034 /* Add the length field. */
4035 expressionS
*exp
= &subseg
->end_exp
;
4038 if (opt_label
!= NULL
)
4039 symbol_set_value_now (opt_label
);
4041 /* Add the length field. Note that according to the AIX assembler
4042 manual, the size of the length field is 4 for powerpc32 but
4043 12 for powerpc64. */
4046 /* Write the 64bit marker. */
4047 md_number_to_chars (frag_more (4), -1, 4);
4050 exp
->X_op
= O_subtract
;
4051 exp
->X_op_symbol
= symbol_temp_new_now ();
4052 exp
->X_add_symbol
= symbol_temp_make ();
4054 sz
= ppc_obj64
? 8 : 4;
4055 exp
->X_add_number
= -sz
;
4056 emit_expr (exp
, sz
);
4061 /* This function handles the .text and .data pseudo-ops. These
4062 pseudo-ops aren't really used by XCOFF; we implement them for the
4063 convenience of people who aren't used to XCOFF. */
4066 ppc_section (int type
)
4073 else if (type
== 'd')
4078 sym
= symbol_find_or_make (name
);
4080 ppc_change_csect (sym
, 2);
4082 demand_empty_rest_of_line ();
4085 /* This function handles the .section pseudo-op. This is mostly to
4086 give an error, since XCOFF only supports .text, .data and .bss, but
4087 we do permit the user to name the text or data section. */
4090 ppc_named_section (int ignore ATTRIBUTE_UNUSED
)
4093 const char *real_name
;
4097 user_name
= input_line_pointer
;
4098 c
= get_symbol_end ();
4100 if (strcmp (user_name
, ".text") == 0)
4101 real_name
= ".text[PR]";
4102 else if (strcmp (user_name
, ".data") == 0)
4103 real_name
= ".data[RW]";
4106 as_bad (_("the XCOFF file format does not support arbitrary sections"));
4107 *input_line_pointer
= c
;
4108 ignore_rest_of_line ();
4112 *input_line_pointer
= c
;
4114 sym
= symbol_find_or_make (real_name
);
4116 ppc_change_csect (sym
, 2);
4118 demand_empty_rest_of_line ();
4121 /* The .extern pseudo-op. We create an undefined symbol. */
4124 ppc_extern (int ignore ATTRIBUTE_UNUSED
)
4129 name
= input_line_pointer
;
4130 endc
= get_symbol_end ();
4132 (void) symbol_find_or_make (name
);
4134 *input_line_pointer
= endc
;
4136 demand_empty_rest_of_line ();
4139 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
4142 ppc_lglobl (int ignore ATTRIBUTE_UNUSED
)
4148 name
= input_line_pointer
;
4149 endc
= get_symbol_end ();
4151 sym
= symbol_find_or_make (name
);
4153 *input_line_pointer
= endc
;
4155 symbol_get_tc (sym
)->output
= 1;
4157 demand_empty_rest_of_line ();
4160 /* The .ref pseudo-op. It takes a list of symbol names and inserts R_REF
4161 relocations at the beginning of the current csect.
4163 (In principle, there's no reason why the relocations _have_ to be at
4164 the beginning. Anywhere in the csect would do. However, inserting
4165 at the beginning is what the native assmebler does, and it helps to
4166 deal with cases where the .ref statements follow the section contents.)
4168 ??? .refs don't work for empty .csects. However, the native assembler
4169 doesn't report an error in this case, and neither yet do we. */
4172 ppc_ref (int ignore ATTRIBUTE_UNUSED
)
4177 if (ppc_current_csect
== NULL
)
4179 as_bad (_(".ref outside .csect"));
4180 ignore_rest_of_line ();
4186 name
= input_line_pointer
;
4187 c
= get_symbol_end ();
4189 fix_at_start (symbol_get_frag (ppc_current_csect
), 0,
4190 symbol_find_or_make (name
), 0, FALSE
, BFD_RELOC_NONE
);
4192 *input_line_pointer
= c
;
4194 c
= *input_line_pointer
;
4197 input_line_pointer
++;
4199 if (is_end_of_line
[(unsigned char) *input_line_pointer
])
4201 as_bad (_("missing symbol name"));
4202 ignore_rest_of_line ();
4209 demand_empty_rest_of_line ();
4212 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
4213 although I don't know why it bothers. */
4216 ppc_rename (int ignore ATTRIBUTE_UNUSED
)
4223 name
= input_line_pointer
;
4224 endc
= get_symbol_end ();
4226 sym
= symbol_find_or_make (name
);
4228 *input_line_pointer
= endc
;
4230 if (*input_line_pointer
!= ',')
4232 as_bad (_("missing rename string"));
4233 ignore_rest_of_line ();
4236 ++input_line_pointer
;
4238 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
4240 demand_empty_rest_of_line ();
4243 /* The .stabx pseudo-op. This is similar to a normal .stabs
4244 pseudo-op, but slightly different. A sample is
4245 .stabx "main:F-1",.main,142,0
4246 The first argument is the symbol name to create. The second is the
4247 value, and the third is the storage class. The fourth seems to be
4248 always zero, and I am assuming it is the type. */
4251 ppc_stabx (int ignore ATTRIBUTE_UNUSED
)
4258 name
= demand_copy_C_string (&len
);
4260 if (*input_line_pointer
!= ',')
4262 as_bad (_("missing value"));
4265 ++input_line_pointer
;
4267 ppc_stab_symbol
= TRUE
;
4268 sym
= symbol_make (name
);
4269 ppc_stab_symbol
= FALSE
;
4271 symbol_get_tc (sym
)->real_name
= name
;
4273 (void) expression (&exp
);
4280 as_bad (_("illegal .stabx expression; zero assumed"));
4281 exp
.X_add_number
= 0;
4284 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
4285 symbol_set_frag (sym
, &zero_address_frag
);
4289 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
4290 symbol_set_value_expression (sym
, &exp
);
4294 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
4295 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
4300 /* The value is some complex expression. This will probably
4301 fail at some later point, but this is probably the right
4302 thing to do here. */
4303 symbol_set_value_expression (sym
, &exp
);
4307 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
4308 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4310 if (*input_line_pointer
!= ',')
4312 as_bad (_("missing class"));
4315 ++input_line_pointer
;
4317 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
4319 if (*input_line_pointer
!= ',')
4321 as_bad (_("missing type"));
4324 ++input_line_pointer
;
4326 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
4328 symbol_get_tc (sym
)->output
= 1;
4330 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
4335 .stabx "z",arrays_,133,0
4338 .comm arrays_,13768,3
4340 resolve_symbol_value will copy the exp's "within" into sym's when the
4341 offset is 0. Since this seems to be corner case problem,
4342 only do the correction for storage class C_STSYM. A better solution
4343 would be to have the tc field updated in ppc_symbol_new_hook. */
4345 if (exp
.X_op
== O_symbol
)
4347 if (ppc_current_block
== NULL
)
4348 as_bad (_(".stabx of storage class stsym must be within .bs/.es"));
4350 symbol_get_tc (sym
)->within
= ppc_current_block
;
4351 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
4355 if (exp
.X_op
!= O_symbol
4356 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
4357 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
4358 ppc_frob_label (sym
);
4361 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4362 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
4363 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
4364 symbol_get_tc (ppc_current_csect
)->within
= sym
;
4367 demand_empty_rest_of_line ();
4370 /* The .function pseudo-op. This takes several arguments. The first
4371 argument seems to be the external name of the symbol. The second
4372 argument seems to be the label for the start of the function. gcc
4373 uses the same name for both. I have no idea what the third and
4374 fourth arguments are meant to be. The optional fifth argument is
4375 an expression for the size of the function. In COFF this symbol
4376 gets an aux entry like that used for a csect. */
4379 ppc_function (int ignore ATTRIBUTE_UNUSED
)
4387 name
= input_line_pointer
;
4388 endc
= get_symbol_end ();
4390 /* Ignore any [PR] suffix. */
4391 name
= ppc_canonicalize_symbol_name (name
);
4392 s
= strchr (name
, '[');
4393 if (s
!= (char *) NULL
4394 && strcmp (s
+ 1, "PR]") == 0)
4397 ext_sym
= symbol_find_or_make (name
);
4399 *input_line_pointer
= endc
;
4401 if (*input_line_pointer
!= ',')
4403 as_bad (_("missing symbol name"));
4404 ignore_rest_of_line ();
4407 ++input_line_pointer
;
4409 name
= input_line_pointer
;
4410 endc
= get_symbol_end ();
4412 lab_sym
= symbol_find_or_make (name
);
4414 *input_line_pointer
= endc
;
4416 if (ext_sym
!= lab_sym
)
4420 exp
.X_op
= O_symbol
;
4421 exp
.X_add_symbol
= lab_sym
;
4422 exp
.X_op_symbol
= NULL
;
4423 exp
.X_add_number
= 0;
4425 symbol_set_value_expression (ext_sym
, &exp
);
4428 if (symbol_get_tc (ext_sym
)->symbol_class
== -1)
4429 symbol_get_tc (ext_sym
)->symbol_class
= XMC_PR
;
4430 symbol_get_tc (ext_sym
)->output
= 1;
4432 if (*input_line_pointer
== ',')
4436 /* Ignore the third argument. */
4437 ++input_line_pointer
;
4439 if (*input_line_pointer
== ',')
4441 /* Ignore the fourth argument. */
4442 ++input_line_pointer
;
4444 if (*input_line_pointer
== ',')
4446 /* The fifth argument is the function size. */
4447 ++input_line_pointer
;
4448 symbol_get_tc (ext_sym
)->u
.size
= symbol_new
4449 ("L0\001", absolute_section
,(valueT
) 0, &zero_address_frag
);
4450 pseudo_set (symbol_get_tc (ext_sym
)->u
.size
);
4455 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4456 SF_SET_FUNCTION (ext_sym
);
4457 SF_SET_PROCESS (ext_sym
);
4458 coff_add_linesym (ext_sym
);
4460 demand_empty_rest_of_line ();
4463 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
4464 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
4465 with the correct line number */
4467 static symbolS
*saved_bi_sym
= 0;
4470 ppc_bf (int ignore ATTRIBUTE_UNUSED
)
4474 sym
= symbol_make (".bf");
4475 S_SET_SEGMENT (sym
, text_section
);
4476 symbol_set_frag (sym
, frag_now
);
4477 S_SET_VALUE (sym
, frag_now_fix ());
4478 S_SET_STORAGE_CLASS (sym
, C_FCN
);
4480 coff_line_base
= get_absolute_expression ();
4482 S_SET_NUMBER_AUXILIARY (sym
, 1);
4483 SA_SET_SYM_LNNO (sym
, coff_line_base
);
4485 /* Line number for bi. */
4488 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
4493 symbol_get_tc (sym
)->output
= 1;
4495 ppc_frob_label (sym
);
4497 demand_empty_rest_of_line ();
4500 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
4501 ".ef", except that the line number is absolute, not relative to the
4502 most recent ".bf" symbol. */
4505 ppc_ef (int ignore ATTRIBUTE_UNUSED
)
4509 sym
= symbol_make (".ef");
4510 S_SET_SEGMENT (sym
, text_section
);
4511 symbol_set_frag (sym
, frag_now
);
4512 S_SET_VALUE (sym
, frag_now_fix ());
4513 S_SET_STORAGE_CLASS (sym
, C_FCN
);
4514 S_SET_NUMBER_AUXILIARY (sym
, 1);
4515 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
4516 symbol_get_tc (sym
)->output
= 1;
4518 ppc_frob_label (sym
);
4520 demand_empty_rest_of_line ();
4523 /* The .bi and .ei pseudo-ops. These take a string argument and
4524 generates a C_BINCL or C_EINCL symbol, which goes at the start of
4525 the symbol list. The value of .bi will be know when the next .bf
4531 static symbolS
*last_biei
;
4538 name
= demand_copy_C_string (&len
);
4540 /* The value of these symbols is actually file offset. Here we set
4541 the value to the index into the line number entries. In
4542 ppc_frob_symbols we set the fix_line field, which will cause BFD
4543 to do the right thing. */
4545 sym
= symbol_make (name
);
4546 /* obj-coff.c currently only handles line numbers correctly in the
4548 S_SET_SEGMENT (sym
, text_section
);
4549 S_SET_VALUE (sym
, coff_n_line_nos
);
4550 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4552 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
4553 symbol_get_tc (sym
)->output
= 1;
4561 for (look
= last_biei
? last_biei
: symbol_rootP
;
4562 (look
!= (symbolS
*) NULL
4563 && (S_GET_STORAGE_CLASS (look
) == C_FILE
4564 || S_GET_STORAGE_CLASS (look
) == C_BINCL
4565 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
4566 look
= symbol_next (look
))
4568 if (look
!= (symbolS
*) NULL
)
4570 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4571 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
4575 demand_empty_rest_of_line ();
4578 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
4579 There is one argument, which is a csect symbol. The value of the
4580 .bs symbol is the index of this csect symbol. */
4583 ppc_bs (int ignore ATTRIBUTE_UNUSED
)
4590 if (ppc_current_block
!= NULL
)
4591 as_bad (_("nested .bs blocks"));
4593 name
= input_line_pointer
;
4594 endc
= get_symbol_end ();
4596 csect
= symbol_find_or_make (name
);
4598 *input_line_pointer
= endc
;
4600 sym
= symbol_make (".bs");
4601 S_SET_SEGMENT (sym
, now_seg
);
4602 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
4603 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4604 symbol_get_tc (sym
)->output
= 1;
4606 symbol_get_tc (sym
)->within
= csect
;
4608 ppc_frob_label (sym
);
4610 ppc_current_block
= sym
;
4612 demand_empty_rest_of_line ();
4615 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
4618 ppc_es (int ignore ATTRIBUTE_UNUSED
)
4622 if (ppc_current_block
== NULL
)
4623 as_bad (_(".es without preceding .bs"));
4625 sym
= symbol_make (".es");
4626 S_SET_SEGMENT (sym
, now_seg
);
4627 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
4628 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4629 symbol_get_tc (sym
)->output
= 1;
4631 ppc_frob_label (sym
);
4633 ppc_current_block
= NULL
;
4635 demand_empty_rest_of_line ();
4638 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
4642 ppc_bb (int ignore ATTRIBUTE_UNUSED
)
4646 sym
= symbol_make (".bb");
4647 S_SET_SEGMENT (sym
, text_section
);
4648 symbol_set_frag (sym
, frag_now
);
4649 S_SET_VALUE (sym
, frag_now_fix ());
4650 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
4652 S_SET_NUMBER_AUXILIARY (sym
, 1);
4653 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
4655 symbol_get_tc (sym
)->output
= 1;
4657 SF_SET_PROCESS (sym
);
4659 ppc_frob_label (sym
);
4661 demand_empty_rest_of_line ();
4664 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
4668 ppc_eb (int ignore ATTRIBUTE_UNUSED
)
4672 sym
= symbol_make (".eb");
4673 S_SET_SEGMENT (sym
, text_section
);
4674 symbol_set_frag (sym
, frag_now
);
4675 S_SET_VALUE (sym
, frag_now_fix ());
4676 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
4677 S_SET_NUMBER_AUXILIARY (sym
, 1);
4678 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
4679 symbol_get_tc (sym
)->output
= 1;
4681 SF_SET_PROCESS (sym
);
4683 ppc_frob_label (sym
);
4685 demand_empty_rest_of_line ();
4688 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
4692 ppc_bc (int ignore ATTRIBUTE_UNUSED
)
4698 name
= demand_copy_C_string (&len
);
4699 sym
= symbol_make (name
);
4700 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
4701 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4702 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
4703 S_SET_VALUE (sym
, 0);
4704 symbol_get_tc (sym
)->output
= 1;
4706 ppc_frob_label (sym
);
4708 demand_empty_rest_of_line ();
4711 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
4714 ppc_ec (int ignore ATTRIBUTE_UNUSED
)
4718 sym
= symbol_make (".ec");
4719 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
4720 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4721 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
4722 S_SET_VALUE (sym
, 0);
4723 symbol_get_tc (sym
)->output
= 1;
4725 ppc_frob_label (sym
);
4727 demand_empty_rest_of_line ();
4730 /* The .toc pseudo-op. Switch to the .toc subsegment. */
4733 ppc_toc (int ignore ATTRIBUTE_UNUSED
)
4735 if (ppc_toc_csect
!= (symbolS
*) NULL
)
4736 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
4743 subseg
= ppc_data_subsegment
;
4744 ++ppc_data_subsegment
;
4746 subseg_new (segment_name (data_section
), subseg
);
4747 ppc_toc_frag
= frag_now
;
4749 sym
= symbol_find_or_make ("TOC[TC0]");
4750 symbol_set_frag (sym
, frag_now
);
4751 S_SET_SEGMENT (sym
, data_section
);
4752 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
4753 symbol_get_tc (sym
)->subseg
= subseg
;
4754 symbol_get_tc (sym
)->output
= 1;
4755 symbol_get_tc (sym
)->within
= sym
;
4757 ppc_toc_csect
= sym
;
4759 for (list
= ppc_data_csects
;
4760 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
4761 list
= symbol_get_tc (list
)->next
)
4763 symbol_get_tc (list
)->next
= sym
;
4765 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4766 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
4770 ppc_current_csect
= ppc_toc_csect
;
4772 demand_empty_rest_of_line ();
4775 /* The AIX assembler automatically aligns the operands of a .long or
4776 .short pseudo-op, and we want to be compatible. */
4779 ppc_xcoff_cons (int log_size
)
4781 frag_align (log_size
, 0, 0);
4782 record_alignment (now_seg
, log_size
);
4783 cons (1 << log_size
);
4787 ppc_vbyte (int dummy ATTRIBUTE_UNUSED
)
4792 (void) expression (&exp
);
4794 if (exp
.X_op
!= O_constant
)
4796 as_bad (_("non-constant byte count"));
4800 byte_count
= exp
.X_add_number
;
4802 if (*input_line_pointer
!= ',')
4804 as_bad (_("missing value"));
4808 ++input_line_pointer
;
4813 ppc_xcoff_end (void)
4817 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
4819 struct dw_section
*dws
= &dw_sections
[i
];
4820 struct dw_subsection
*dwss
;
4822 if (dws
->anon_subseg
)
4824 dwss
= dws
->anon_subseg
;
4825 dwss
->link
= dws
->list_subseg
;
4828 dwss
= dws
->list_subseg
;
4830 for (; dwss
!= NULL
; dwss
= dwss
->link
)
4831 if (dwss
->end_exp
.X_add_symbol
!= NULL
)
4833 subseg_set (dws
->sect
, dwss
->subseg
);
4834 symbol_set_value_now (dwss
->end_exp
.X_add_symbol
);
4839 #endif /* OBJ_XCOFF */
4840 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
4842 /* The .tc pseudo-op. This is used when generating either XCOFF or
4843 ELF. This takes two or more arguments.
4845 When generating XCOFF output, the first argument is the name to
4846 give to this location in the toc; this will be a symbol with class
4847 TC. The rest of the arguments are N-byte values to actually put at
4848 this location in the TOC; often there is just one more argument, a
4849 relocatable symbol reference. The size of the value to store
4850 depends on target word size. A 32-bit target uses 4-byte values, a
4851 64-bit target uses 8-byte values.
4853 When not generating XCOFF output, the arguments are the same, but
4854 the first argument is simply ignored. */
4857 ppc_tc (int ignore ATTRIBUTE_UNUSED
)
4861 /* Define the TOC symbol name. */
4867 if (ppc_toc_csect
== (symbolS
*) NULL
4868 || ppc_toc_csect
!= ppc_current_csect
)
4870 as_bad (_(".tc not in .toc section"));
4871 ignore_rest_of_line ();
4875 name
= input_line_pointer
;
4876 endc
= get_symbol_end ();
4878 sym
= symbol_find_or_make (name
);
4880 *input_line_pointer
= endc
;
4882 if (S_IS_DEFINED (sym
))
4886 label
= symbol_get_tc (ppc_current_csect
)->within
;
4887 if (symbol_get_tc (label
)->symbol_class
!= XMC_TC0
)
4889 as_bad (_(".tc with no label"));
4890 ignore_rest_of_line ();
4894 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
4895 symbol_set_frag (label
, symbol_get_frag (sym
));
4896 S_SET_VALUE (label
, S_GET_VALUE (sym
));
4898 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
4899 ++input_line_pointer
;
4904 S_SET_SEGMENT (sym
, now_seg
);
4905 symbol_set_frag (sym
, frag_now
);
4906 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
4907 symbol_get_tc (sym
)->symbol_class
= XMC_TC
;
4908 symbol_get_tc (sym
)->output
= 1;
4910 ppc_frob_label (sym
);
4913 #endif /* OBJ_XCOFF */
4917 /* Skip the TOC symbol name. */
4918 while (is_part_of_name (*input_line_pointer
)
4919 || *input_line_pointer
== ' '
4920 || *input_line_pointer
== '['
4921 || *input_line_pointer
== ']'
4922 || *input_line_pointer
== '{'
4923 || *input_line_pointer
== '}')
4924 ++input_line_pointer
;
4926 /* Align to a four/eight byte boundary. */
4927 align
= ppc_obj64
? 3 : 2;
4928 frag_align (align
, 0, 0);
4929 record_alignment (now_seg
, align
);
4930 #endif /* OBJ_ELF */
4932 if (*input_line_pointer
!= ',')
4933 demand_empty_rest_of_line ();
4936 ++input_line_pointer
;
4937 cons (ppc_obj64
? 8 : 4);
4941 /* Pseudo-op .machine. */
4944 ppc_machine (int ignore ATTRIBUTE_UNUSED
)
4947 #define MAX_HISTORY 100
4948 static ppc_cpu_t
*cpu_history
;
4949 static int curr_hist
;
4953 if (*input_line_pointer
== '"')
4956 cpu_string
= demand_copy_C_string (&len
);
4961 cpu_string
= input_line_pointer
;
4962 c
= get_symbol_end ();
4963 cpu_string
= xstrdup (cpu_string
);
4964 *input_line_pointer
= c
;
4967 if (cpu_string
!= NULL
)
4969 ppc_cpu_t old_cpu
= ppc_cpu
;
4973 for (p
= cpu_string
; *p
!= 0; p
++)
4976 if (strcmp (cpu_string
, "push") == 0)
4978 if (cpu_history
== NULL
)
4979 cpu_history
= xmalloc (MAX_HISTORY
* sizeof (*cpu_history
));
4981 if (curr_hist
>= MAX_HISTORY
)
4982 as_bad (_(".machine stack overflow"));
4984 cpu_history
[curr_hist
++] = ppc_cpu
;
4986 else if (strcmp (cpu_string
, "pop") == 0)
4989 as_bad (_(".machine stack underflow"));
4991 ppc_cpu
= cpu_history
[--curr_hist
];
4993 else if ((new_cpu
= ppc_parse_cpu (ppc_cpu
, &sticky
, cpu_string
)) != 0)
4996 as_bad (_("invalid machine `%s'"), cpu_string
);
4998 if (ppc_cpu
!= old_cpu
)
4999 ppc_setup_opcodes ();
5002 demand_empty_rest_of_line ();
5004 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5008 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
5010 /* Set the current section. */
5012 ppc_set_current_section (segT
new)
5014 ppc_previous_section
= ppc_current_section
;
5015 ppc_current_section
= new;
5018 /* pseudo-op: .previous
5019 behaviour: toggles the current section with the previous section.
5021 warnings: "No previous section" */
5024 ppc_previous (int ignore ATTRIBUTE_UNUSED
)
5026 if (ppc_previous_section
== NULL
)
5028 as_warn (_("no previous section to return to, ignored."));
5032 subseg_set (ppc_previous_section
, 0);
5034 ppc_set_current_section (ppc_previous_section
);
5037 /* pseudo-op: .pdata
5038 behaviour: predefined read only data section
5042 initial: .section .pdata "adr3"
5043 a - don't know -- maybe a misprint
5044 d - initialized data
5046 3 - double word aligned (that would be 4 byte boundary)
5049 Tag index tables (also known as the function table) for exception
5050 handling, debugging, etc. */
5053 ppc_pdata (int ignore ATTRIBUTE_UNUSED
)
5055 if (pdata_section
== 0)
5057 pdata_section
= subseg_new (".pdata", 0);
5059 bfd_set_section_flags (stdoutput
, pdata_section
,
5060 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5061 | SEC_READONLY
| SEC_DATA
));
5063 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
5067 pdata_section
= subseg_new (".pdata", 0);
5069 ppc_set_current_section (pdata_section
);
5072 /* pseudo-op: .ydata
5073 behaviour: predefined read only data section
5077 initial: .section .ydata "drw3"
5078 a - don't know -- maybe a misprint
5079 d - initialized data
5081 3 - double word aligned (that would be 4 byte boundary)
5083 Tag tables (also known as the scope table) for exception handling,
5087 ppc_ydata (int ignore ATTRIBUTE_UNUSED
)
5089 if (ydata_section
== 0)
5091 ydata_section
= subseg_new (".ydata", 0);
5092 bfd_set_section_flags (stdoutput
, ydata_section
,
5093 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5094 | SEC_READONLY
| SEC_DATA
));
5096 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
5100 ydata_section
= subseg_new (".ydata", 0);
5102 ppc_set_current_section (ydata_section
);
5105 /* pseudo-op: .reldata
5106 behaviour: predefined read write data section
5107 double word aligned (4-byte)
5108 FIXME: relocation is applied to it
5109 FIXME: what's the difference between this and .data?
5112 initial: .section .reldata "drw3"
5113 d - initialized data
5116 3 - double word aligned (that would be 8 byte boundary)
5119 Like .data, but intended to hold data subject to relocation, such as
5120 function descriptors, etc. */
5123 ppc_reldata (int ignore ATTRIBUTE_UNUSED
)
5125 if (reldata_section
== 0)
5127 reldata_section
= subseg_new (".reldata", 0);
5129 bfd_set_section_flags (stdoutput
, reldata_section
,
5130 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5133 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
5137 reldata_section
= subseg_new (".reldata", 0);
5139 ppc_set_current_section (reldata_section
);
5142 /* pseudo-op: .rdata
5143 behaviour: predefined read only data section
5147 initial: .section .rdata "dr3"
5148 d - initialized data
5150 3 - double word aligned (that would be 4 byte boundary) */
5153 ppc_rdata (int ignore ATTRIBUTE_UNUSED
)
5155 if (rdata_section
== 0)
5157 rdata_section
= subseg_new (".rdata", 0);
5158 bfd_set_section_flags (stdoutput
, rdata_section
,
5159 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5160 | SEC_READONLY
| SEC_DATA
));
5162 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
5166 rdata_section
= subseg_new (".rdata", 0);
5168 ppc_set_current_section (rdata_section
);
5171 /* pseudo-op: .ualong
5172 behaviour: much like .int, with the exception that no alignment is
5174 FIXME: test the alignment statement
5179 ppc_ualong (int ignore ATTRIBUTE_UNUSED
)
5185 /* pseudo-op: .znop <symbol name>
5186 behaviour: Issue a nop instruction
5187 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
5188 the supplied symbol name.
5190 warnings: Missing symbol name */
5193 ppc_znop (int ignore ATTRIBUTE_UNUSED
)
5196 const struct powerpc_opcode
*opcode
;
5203 /* Strip out the symbol name. */
5204 symbol_name
= input_line_pointer
;
5205 c
= get_symbol_end ();
5207 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
5208 strcpy (name
, symbol_name
);
5210 sym
= symbol_find_or_make (name
);
5212 *input_line_pointer
= c
;
5216 /* Look up the opcode in the hash table. */
5217 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
5219 /* Stick in the nop. */
5220 insn
= opcode
->opcode
;
5222 /* Write out the instruction. */
5224 md_number_to_chars (f
, insn
, 4);
5226 f
- frag_now
->fr_literal
,
5231 BFD_RELOC_16_GOT_PCREL
);
5241 ppc_pe_comm (int lcomm
)
5250 name
= input_line_pointer
;
5251 c
= get_symbol_end ();
5253 /* just after name is now '\0'. */
5254 p
= input_line_pointer
;
5257 if (*input_line_pointer
!= ',')
5259 as_bad (_("expected comma after symbol-name: rest of line ignored."));
5260 ignore_rest_of_line ();
5264 input_line_pointer
++; /* skip ',' */
5265 if ((temp
= get_absolute_expression ()) < 0)
5267 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
5268 ignore_rest_of_line ();
5274 /* The third argument to .comm is the alignment. */
5275 if (*input_line_pointer
!= ',')
5279 ++input_line_pointer
;
5280 align
= get_absolute_expression ();
5283 as_warn (_("ignoring bad alignment"));
5290 symbolP
= symbol_find_or_make (name
);
5293 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
5295 as_bad (_("ignoring attempt to re-define symbol `%s'."),
5296 S_GET_NAME (symbolP
));
5297 ignore_rest_of_line ();
5301 if (S_GET_VALUE (symbolP
))
5303 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
5304 as_bad (_("length of .comm \"%s\" is already %ld. Not changed to %ld."),
5305 S_GET_NAME (symbolP
),
5306 (long) S_GET_VALUE (symbolP
),
5311 S_SET_VALUE (symbolP
, (valueT
) temp
);
5312 S_SET_EXTERNAL (symbolP
);
5313 S_SET_SEGMENT (symbolP
, bfd_com_section_ptr
);
5316 demand_empty_rest_of_line ();
5320 * implement the .section pseudo op:
5321 * .section name {, "flags"}
5323 * | +--- optional flags: 'b' for bss
5325 * +-- section name 'l' for lib
5329 * 'd' (apparently m88k for data)
5331 * But if the argument is not a quoted string, treat it as a
5332 * subsegment number.
5334 * FIXME: this is a copy of the section processing from obj-coff.c, with
5335 * additions/changes for the moto-pas assembler support. There are three
5338 * FIXME: I just noticed this. This doesn't work at all really. It it
5339 * setting bits that bfd probably neither understands or uses. The
5340 * correct approach (?) will have to incorporate extra fields attached
5341 * to the section to hold the system specific stuff. (krk)
5344 * 'a' - unknown - referred to in documentation, but no definition supplied
5345 * 'c' - section has code
5346 * 'd' - section has initialized data
5347 * 'u' - section has uninitialized data
5348 * 'i' - section contains directives (info)
5349 * 'n' - section can be discarded
5350 * 'R' - remove section at link time
5352 * Section Protection:
5353 * 'r' - section is readable
5354 * 'w' - section is writeable
5355 * 'x' - section is executable
5356 * 's' - section is sharable
5358 * Section Alignment:
5359 * '0' - align to byte boundary
5360 * '1' - align to halfword undary
5361 * '2' - align to word boundary
5362 * '3' - align to doubleword boundary
5363 * '4' - align to quadword boundary
5364 * '5' - align to 32 byte boundary
5365 * '6' - align to 64 byte boundary
5370 ppc_pe_section (int ignore ATTRIBUTE_UNUSED
)
5372 /* Strip out the section name. */
5381 section_name
= input_line_pointer
;
5382 c
= get_symbol_end ();
5384 name
= xmalloc (input_line_pointer
- section_name
+ 1);
5385 strcpy (name
, section_name
);
5387 *input_line_pointer
= c
;
5392 flags
= SEC_NO_FLAGS
;
5394 if (strcmp (name
, ".idata$2") == 0)
5398 else if (strcmp (name
, ".idata$3") == 0)
5402 else if (strcmp (name
, ".idata$4") == 0)
5406 else if (strcmp (name
, ".idata$5") == 0)
5410 else if (strcmp (name
, ".idata$6") == 0)
5415 /* Default alignment to 16 byte boundary. */
5418 if (*input_line_pointer
== ',')
5420 ++input_line_pointer
;
5422 if (*input_line_pointer
!= '"')
5423 exp
= get_absolute_expression ();
5426 ++input_line_pointer
;
5427 while (*input_line_pointer
!= '"'
5428 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
5430 switch (*input_line_pointer
)
5432 /* Section Contents */
5433 case 'a': /* unknown */
5434 as_bad (_("unsupported section attribute -- 'a'"));
5436 case 'c': /* code section */
5439 case 'd': /* section has initialized data */
5442 case 'u': /* section has uninitialized data */
5443 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
5447 case 'i': /* section contains directives (info) */
5448 /* FIXME: This is IMAGE_SCN_LNK_INFO
5450 flags
|= SEC_HAS_CONTENTS
;
5452 case 'n': /* section can be discarded */
5455 case 'R': /* Remove section at link time */
5456 flags
|= SEC_NEVER_LOAD
;
5458 #if IFLICT_BRAIN_DAMAGE
5459 /* Section Protection */
5460 case 'r': /* section is readable */
5461 flags
|= IMAGE_SCN_MEM_READ
;
5463 case 'w': /* section is writeable */
5464 flags
|= IMAGE_SCN_MEM_WRITE
;
5466 case 'x': /* section is executable */
5467 flags
|= IMAGE_SCN_MEM_EXECUTE
;
5469 case 's': /* section is sharable */
5470 flags
|= IMAGE_SCN_MEM_SHARED
;
5473 /* Section Alignment */
5474 case '0': /* align to byte boundary */
5475 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
5478 case '1': /* align to halfword boundary */
5479 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
5482 case '2': /* align to word boundary */
5483 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
5486 case '3': /* align to doubleword boundary */
5487 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
5490 case '4': /* align to quadword boundary */
5491 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
5494 case '5': /* align to 32 byte boundary */
5495 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
5498 case '6': /* align to 64 byte boundary */
5499 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
5504 as_bad (_("unknown section attribute '%c'"),
5505 *input_line_pointer
);
5508 ++input_line_pointer
;
5510 if (*input_line_pointer
== '"')
5511 ++input_line_pointer
;
5515 sec
= subseg_new (name
, (subsegT
) exp
);
5517 ppc_set_current_section (sec
);
5519 if (flags
!= SEC_NO_FLAGS
)
5521 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
5522 as_bad (_("error setting flags for \"%s\": %s"),
5523 bfd_section_name (stdoutput
, sec
),
5524 bfd_errmsg (bfd_get_error ()));
5527 bfd_set_section_alignment (stdoutput
, sec
, align
);
5531 ppc_pe_function (int ignore ATTRIBUTE_UNUSED
)
5537 name
= input_line_pointer
;
5538 endc
= get_symbol_end ();
5540 ext_sym
= symbol_find_or_make (name
);
5542 *input_line_pointer
= endc
;
5544 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
5545 SF_SET_FUNCTION (ext_sym
);
5546 SF_SET_PROCESS (ext_sym
);
5547 coff_add_linesym (ext_sym
);
5549 demand_empty_rest_of_line ();
5553 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED
)
5555 if (tocdata_section
== 0)
5557 tocdata_section
= subseg_new (".tocd", 0);
5558 /* FIXME: section flags won't work. */
5559 bfd_set_section_flags (stdoutput
, tocdata_section
,
5560 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5561 | SEC_READONLY
| SEC_DATA
));
5563 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
5567 rdata_section
= subseg_new (".tocd", 0);
5570 ppc_set_current_section (tocdata_section
);
5572 demand_empty_rest_of_line ();
5575 /* Don't adjust TOC relocs to use the section symbol. */
5578 ppc_pe_fix_adjustable (fixS
*fix
)
5580 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
5587 /* XCOFF specific symbol and file handling. */
5589 /* Canonicalize the symbol name. We use the to force the suffix, if
5590 any, to use square brackets, and to be in upper case. */
5593 ppc_canonicalize_symbol_name (char *name
)
5597 if (ppc_stab_symbol
)
5600 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
5614 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
5617 if (*s
== '\0' || s
[1] != '\0')
5618 as_bad (_("bad symbol suffix"));
5626 /* Set the class of a symbol based on the suffix, if any. This is
5627 called whenever a new symbol is created. */
5630 ppc_symbol_new_hook (symbolS
*sym
)
5632 struct ppc_tc_sy
*tc
;
5635 tc
= symbol_get_tc (sym
);
5638 tc
->symbol_class
= -1;
5639 tc
->real_name
= NULL
;
5646 if (ppc_stab_symbol
)
5649 s
= strchr (S_GET_NAME (sym
), '[');
5650 if (s
== (const char *) NULL
)
5652 /* There is no suffix. */
5661 if (strcmp (s
, "BS]") == 0)
5662 tc
->symbol_class
= XMC_BS
;
5665 if (strcmp (s
, "DB]") == 0)
5666 tc
->symbol_class
= XMC_DB
;
5667 else if (strcmp (s
, "DS]") == 0)
5668 tc
->symbol_class
= XMC_DS
;
5671 if (strcmp (s
, "GL]") == 0)
5672 tc
->symbol_class
= XMC_GL
;
5675 if (strcmp (s
, "PR]") == 0)
5676 tc
->symbol_class
= XMC_PR
;
5679 if (strcmp (s
, "RO]") == 0)
5680 tc
->symbol_class
= XMC_RO
;
5681 else if (strcmp (s
, "RW]") == 0)
5682 tc
->symbol_class
= XMC_RW
;
5685 if (strcmp (s
, "SV]") == 0)
5686 tc
->symbol_class
= XMC_SV
;
5689 if (strcmp (s
, "TC]") == 0)
5690 tc
->symbol_class
= XMC_TC
;
5691 else if (strcmp (s
, "TI]") == 0)
5692 tc
->symbol_class
= XMC_TI
;
5693 else if (strcmp (s
, "TB]") == 0)
5694 tc
->symbol_class
= XMC_TB
;
5695 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
5696 tc
->symbol_class
= XMC_TC0
;
5699 if (strcmp (s
, "UA]") == 0)
5700 tc
->symbol_class
= XMC_UA
;
5701 else if (strcmp (s
, "UC]") == 0)
5702 tc
->symbol_class
= XMC_UC
;
5705 if (strcmp (s
, "XO]") == 0)
5706 tc
->symbol_class
= XMC_XO
;
5710 if (tc
->symbol_class
== -1)
5711 as_bad (_("unrecognized symbol suffix"));
5714 /* Set the class of a label based on where it is defined. This
5715 handles symbols without suffixes. Also, move the symbol so that it
5716 follows the csect symbol. */
5719 ppc_frob_label (symbolS
*sym
)
5721 if (ppc_current_csect
!= (symbolS
*) NULL
)
5723 if (symbol_get_tc (sym
)->symbol_class
== -1)
5724 symbol_get_tc (sym
)->symbol_class
= symbol_get_tc (ppc_current_csect
)->symbol_class
;
5726 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
5727 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
5728 &symbol_rootP
, &symbol_lastP
);
5729 symbol_get_tc (ppc_current_csect
)->within
= sym
;
5730 symbol_get_tc (sym
)->within
= ppc_current_csect
;
5734 dwarf2_emit_label (sym
);
5738 /* This variable is set by ppc_frob_symbol if any absolute symbols are
5739 seen. It tells ppc_adjust_symtab whether it needs to look through
5742 static bfd_boolean ppc_saw_abs
;
5744 /* Change the name of a symbol just before writing it out. Set the
5745 real name if the .rename pseudo-op was used. Otherwise, remove any
5746 class suffix. Return 1 if the symbol should not be included in the
5750 ppc_frob_symbol (symbolS
*sym
)
5752 static symbolS
*ppc_last_function
;
5753 static symbolS
*set_end
;
5755 /* Discard symbols that should not be included in the output symbol
5757 if (! symbol_used_in_reloc_p (sym
)
5758 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
5759 || (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
5760 && ! symbol_get_tc (sym
)->output
5761 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
5764 /* This one will disappear anyway. Don't make a csect sym for it. */
5765 if (sym
== abs_section_sym
)
5768 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
5769 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
5775 name
= S_GET_NAME (sym
);
5776 s
= strchr (name
, '[');
5777 if (s
!= (char *) NULL
)
5783 snew
= xmalloc (len
+ 1);
5784 memcpy (snew
, name
, len
);
5787 S_SET_NAME (sym
, snew
);
5791 if (set_end
!= (symbolS
*) NULL
)
5793 SA_SET_SYM_ENDNDX (set_end
, sym
);
5797 if (SF_GET_FUNCTION (sym
))
5799 if (ppc_last_function
!= (symbolS
*) NULL
)
5800 as_bad (_("two .function pseudo-ops with no intervening .ef"));
5801 ppc_last_function
= sym
;
5802 if (symbol_get_tc (sym
)->u
.size
!= (symbolS
*) NULL
)
5804 resolve_symbol_value (symbol_get_tc (sym
)->u
.size
);
5805 SA_SET_SYM_FSIZE (sym
,
5806 (long) S_GET_VALUE (symbol_get_tc (sym
)->u
.size
));
5809 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
5810 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
5812 if (ppc_last_function
== (symbolS
*) NULL
)
5813 as_bad (_(".ef with no preceding .function"));
5816 set_end
= ppc_last_function
;
5817 ppc_last_function
= NULL
;
5819 /* We don't have a C_EFCN symbol, but we need to force the
5820 COFF backend to believe that it has seen one. */
5821 coff_last_function
= NULL
;
5825 if (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
5826 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
5827 && S_GET_STORAGE_CLASS (sym
) != C_FILE
5828 && S_GET_STORAGE_CLASS (sym
) != C_FCN
5829 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
5830 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
5831 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
5832 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
5833 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
5834 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
5835 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
5837 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
5838 || S_GET_STORAGE_CLASS (sym
) == C_AIX_WEAKEXT
5839 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
5842 union internal_auxent
*a
;
5844 /* Create a csect aux. */
5845 i
= S_GET_NUMBER_AUXILIARY (sym
);
5846 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
5847 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
5848 if (symbol_get_tc (sym
)->symbol_class
== XMC_TC0
)
5850 /* This is the TOC table. */
5851 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
5852 a
->x_csect
.x_scnlen
.l
= 0;
5853 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5855 else if (symbol_get_tc (sym
)->subseg
!= 0)
5857 /* This is a csect symbol. x_scnlen is the size of the
5859 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
5860 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5861 S_GET_SEGMENT (sym
))
5862 - S_GET_VALUE (sym
));
5865 resolve_symbol_value (symbol_get_tc (sym
)->next
);
5866 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
5867 - S_GET_VALUE (sym
));
5869 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
5871 else if (S_GET_SEGMENT (sym
) == bss_section
)
5873 /* This is a common symbol. */
5874 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
5875 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
5876 if (S_IS_EXTERNAL (sym
))
5877 symbol_get_tc (sym
)->symbol_class
= XMC_RW
;
5879 symbol_get_tc (sym
)->symbol_class
= XMC_BS
;
5881 else if (S_GET_SEGMENT (sym
) == absolute_section
)
5883 /* This is an absolute symbol. The csect will be created by
5884 ppc_adjust_symtab. */
5886 a
->x_csect
.x_smtyp
= XTY_LD
;
5887 if (symbol_get_tc (sym
)->symbol_class
== -1)
5888 symbol_get_tc (sym
)->symbol_class
= XMC_XO
;
5890 else if (! S_IS_DEFINED (sym
))
5892 /* This is an external symbol. */
5893 a
->x_csect
.x_scnlen
.l
= 0;
5894 a
->x_csect
.x_smtyp
= XTY_ER
;
5896 else if (symbol_get_tc (sym
)->symbol_class
== XMC_TC
)
5900 /* This is a TOC definition. x_scnlen is the size of the
5902 next
= symbol_next (sym
);
5903 while (symbol_get_tc (next
)->symbol_class
== XMC_TC0
)
5904 next
= symbol_next (next
);
5905 if (next
== (symbolS
*) NULL
5906 || symbol_get_tc (next
)->symbol_class
!= XMC_TC
)
5908 if (ppc_after_toc_frag
== (fragS
*) NULL
)
5909 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5911 - S_GET_VALUE (sym
));
5913 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
5914 - S_GET_VALUE (sym
));
5918 resolve_symbol_value (next
);
5919 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
5920 - S_GET_VALUE (sym
));
5922 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5928 /* This is a normal symbol definition. x_scnlen is the
5929 symbol index of the containing csect. */
5930 if (S_GET_SEGMENT (sym
) == text_section
)
5931 csect
= ppc_text_csects
;
5932 else if (S_GET_SEGMENT (sym
) == data_section
)
5933 csect
= ppc_data_csects
;
5937 /* Skip the initial dummy symbol. */
5938 csect
= symbol_get_tc (csect
)->next
;
5940 if (csect
== (symbolS
*) NULL
)
5942 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
5943 a
->x_csect
.x_scnlen
.l
= 0;
5947 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
5949 resolve_symbol_value (symbol_get_tc (csect
)->next
);
5950 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
5951 > S_GET_VALUE (sym
))
5953 csect
= symbol_get_tc (csect
)->next
;
5956 a
->x_csect
.x_scnlen
.p
=
5957 coffsymbol (symbol_get_bfdsym (csect
))->native
;
5958 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
5961 a
->x_csect
.x_smtyp
= XTY_LD
;
5964 a
->x_csect
.x_parmhash
= 0;
5965 a
->x_csect
.x_snhash
= 0;
5966 if (symbol_get_tc (sym
)->symbol_class
== -1)
5967 a
->x_csect
.x_smclas
= XMC_PR
;
5969 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->symbol_class
;
5970 a
->x_csect
.x_stab
= 0;
5971 a
->x_csect
.x_snstab
= 0;
5973 /* Don't let the COFF backend resort these symbols. */
5974 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
5976 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
5978 /* We want the value to be the symbol index of the referenced
5979 csect symbol. BFD will do that for us if we set the right
5981 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
5982 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
5984 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
5985 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
5987 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
5992 block
= symbol_get_tc (sym
)->within
;
5995 /* The value is the offset from the enclosing csect. */
5998 csect
= symbol_get_tc (block
)->within
;
5999 resolve_symbol_value (csect
);
6000 base
= S_GET_VALUE (csect
);
6005 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - base
);
6007 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
6008 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
6010 /* We want the value to be a file offset into the line numbers.
6011 BFD will do that for us if we set the right flags. We have
6012 already set the value correctly. */
6013 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
6019 /* Adjust the symbol table. This creates csect symbols for all
6020 absolute symbols. */
6023 ppc_adjust_symtab (void)
6030 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
6034 union internal_auxent
*a
;
6036 if (S_GET_SEGMENT (sym
) != absolute_section
)
6039 csect
= symbol_create (".abs[XO]", absolute_section
,
6040 S_GET_VALUE (sym
), &zero_address_frag
);
6041 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
6042 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
6043 i
= S_GET_NUMBER_AUXILIARY (csect
);
6044 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
6045 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
6046 a
->x_csect
.x_scnlen
.l
= 0;
6047 a
->x_csect
.x_smtyp
= XTY_SD
;
6048 a
->x_csect
.x_parmhash
= 0;
6049 a
->x_csect
.x_snhash
= 0;
6050 a
->x_csect
.x_smclas
= XMC_XO
;
6051 a
->x_csect
.x_stab
= 0;
6052 a
->x_csect
.x_snstab
= 0;
6054 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
6056 i
= S_GET_NUMBER_AUXILIARY (sym
);
6057 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
6058 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
6059 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
6062 ppc_saw_abs
= FALSE
;
6065 /* Set the VMA for a section. This is called on all the sections in
6069 ppc_frob_section (asection
*sec
)
6071 static bfd_vma vma
= 0;
6073 /* Dwarf sections start at 0. */
6074 if (bfd_get_section_flags (NULL
, sec
) & SEC_DEBUGGING
)
6077 vma
= md_section_align (sec
, vma
);
6078 bfd_set_section_vma (stdoutput
, sec
, vma
);
6079 vma
+= bfd_section_size (stdoutput
, sec
);
6082 #endif /* OBJ_XCOFF */
6085 md_atof (int type
, char *litp
, int *sizep
)
6087 return ieee_md_atof (type
, litp
, sizep
, target_big_endian
);
6090 /* Write a value out to the object file, using the appropriate
6094 md_number_to_chars (char *buf
, valueT val
, int n
)
6096 if (target_big_endian
)
6097 number_to_chars_bigendian (buf
, val
, n
);
6099 number_to_chars_littleendian (buf
, val
, n
);
6102 /* Align a section (I don't know why this is machine dependent). */
6105 md_section_align (asection
*seg ATTRIBUTE_UNUSED
, valueT addr
)
6110 int align
= bfd_get_section_alignment (stdoutput
, seg
);
6112 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
6116 /* We don't have any form of relaxing. */
6119 md_estimate_size_before_relax (fragS
*fragp ATTRIBUTE_UNUSED
,
6120 asection
*seg ATTRIBUTE_UNUSED
)
6126 /* Convert a machine dependent frag. We never generate these. */
6129 md_convert_frag (bfd
*abfd ATTRIBUTE_UNUSED
,
6130 asection
*sec ATTRIBUTE_UNUSED
,
6131 fragS
*fragp ATTRIBUTE_UNUSED
)
6136 /* We have no need to default values of symbols. */
6139 md_undefined_symbol (char *name ATTRIBUTE_UNUSED
)
6144 /* Functions concerning relocs. */
6146 /* The location from which a PC relative jump should be calculated,
6147 given a PC relative reloc. */
6150 md_pcrel_from_section (fixS
*fixp
, segT sec ATTRIBUTE_UNUSED
)
6152 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6157 /* This is called to see whether a fixup should be adjusted to use a
6158 section symbol. We take the opportunity to change a fixup against
6159 a symbol in the TOC subsegment into a reloc against the
6160 corresponding .tc symbol. */
6163 ppc_fix_adjustable (fixS
*fix
)
6165 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
6166 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
6167 TC_SYMFIELD_TYPE
*tc
;
6169 if (symseg
== absolute_section
)
6172 /* Always adjust symbols in debugging sections. */
6173 if (bfd_get_section_flags (stdoutput
, symseg
) & SEC_DEBUGGING
)
6176 if (ppc_toc_csect
!= (symbolS
*) NULL
6177 && fix
->fx_addsy
!= ppc_toc_csect
6178 && symseg
== data_section
6179 && val
>= ppc_toc_frag
->fr_address
6180 && (ppc_after_toc_frag
== (fragS
*) NULL
6181 || val
< ppc_after_toc_frag
->fr_address
))
6185 for (sy
= symbol_next (ppc_toc_csect
);
6186 sy
!= (symbolS
*) NULL
;
6187 sy
= symbol_next (sy
))
6189 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
6191 if (sy_tc
->symbol_class
== XMC_TC0
)
6193 if (sy_tc
->symbol_class
!= XMC_TC
)
6195 if (val
== resolve_symbol_value (sy
))
6198 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
6203 as_bad_where (fix
->fx_file
, fix
->fx_line
,
6204 _("symbol in .toc does not match any .tc"));
6207 /* Possibly adjust the reloc to be against the csect. */
6208 tc
= symbol_get_tc (fix
->fx_addsy
);
6210 && tc
->symbol_class
!= XMC_TC0
6211 && tc
->symbol_class
!= XMC_TC
6212 && symseg
!= bss_section
6213 /* Don't adjust if this is a reloc in the toc section. */
6214 && (symseg
!= data_section
6215 || ppc_toc_csect
== NULL
6216 || val
< ppc_toc_frag
->fr_address
6217 || (ppc_after_toc_frag
!= NULL
6218 && val
>= ppc_after_toc_frag
->fr_address
)))
6220 symbolS
*csect
= tc
->within
;
6222 /* If the symbol was not declared by a label (eg: a section symbol),
6223 use the section instead of the csect. This doesn't happen in
6224 normal AIX assembly code. */
6226 csect
= seg_info (symseg
)->sym
;
6228 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
6229 fix
->fx_addsy
= csect
;
6234 /* Adjust a reloc against a .lcomm symbol to be against the base
6236 if (symseg
== bss_section
6237 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
6239 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
6241 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
6248 /* A reloc from one csect to another must be kept. The assembler
6249 will, of course, keep relocs between sections, and it will keep
6250 absolute relocs, but we need to force it to keep PC relative relocs
6251 between two csects in the same section. */
6254 ppc_force_relocation (fixS
*fix
)
6256 /* At this point fix->fx_addsy should already have been converted to
6257 a csect symbol. If the csect does not include the fragment, then
6258 we need to force the relocation. */
6260 && fix
->fx_addsy
!= NULL
6261 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
6262 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
6263 > fix
->fx_frag
->fr_address
)
6264 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
6265 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
6266 <= fix
->fx_frag
->fr_address
))))
6269 return generic_force_reloc (fix
);
6273 ppc_new_dot_label (symbolS
*sym
)
6275 /* Anchor this label to the current csect for relocations. */
6276 symbol_get_tc (sym
)->within
= ppc_current_csect
;
6279 #endif /* OBJ_XCOFF */
6282 /* If this function returns non-zero, it guarantees that a relocation
6283 will be emitted for a fixup. */
6286 ppc_force_relocation (fixS
*fix
)
6288 /* Branch prediction relocations must force a relocation, as must
6289 the vtable description relocs. */
6290 switch (fix
->fx_r_type
)
6292 case BFD_RELOC_PPC_B16_BRTAKEN
:
6293 case BFD_RELOC_PPC_B16_BRNTAKEN
:
6294 case BFD_RELOC_PPC_BA16_BRTAKEN
:
6295 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
6296 case BFD_RELOC_24_PLT_PCREL
:
6297 case BFD_RELOC_PPC64_TOC
:
6299 case BFD_RELOC_PPC_B26
:
6300 case BFD_RELOC_PPC_BA26
:
6301 case BFD_RELOC_PPC_B16
:
6302 case BFD_RELOC_PPC_BA16
:
6303 /* All branch fixups targeting a localentry symbol must
6304 force a relocation. */
6307 asymbol
*bfdsym
= symbol_get_bfdsym (fix
->fx_addsy
);
6308 elf_symbol_type
*elfsym
6309 = elf_symbol_from (bfd_asymbol_bfd (bfdsym
), bfdsym
);
6310 gas_assert (elfsym
);
6311 if ((STO_PPC64_LOCAL_MASK
& elfsym
->internal_elf_sym
.st_other
) != 0)
6319 if (fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
6320 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
6323 return generic_force_reloc (fix
);
6327 ppc_fix_adjustable (fixS
*fix
)
6329 switch (fix
->fx_r_type
)
6331 /* All branch fixups targeting a localentry symbol must
6332 continue using the symbol. */
6333 case BFD_RELOC_PPC_B26
:
6334 case BFD_RELOC_PPC_BA26
:
6335 case BFD_RELOC_PPC_B16
:
6336 case BFD_RELOC_PPC_BA16
:
6337 case BFD_RELOC_PPC_B16_BRTAKEN
:
6338 case BFD_RELOC_PPC_B16_BRNTAKEN
:
6339 case BFD_RELOC_PPC_BA16_BRTAKEN
:
6340 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
6343 asymbol
*bfdsym
= symbol_get_bfdsym (fix
->fx_addsy
);
6344 elf_symbol_type
*elfsym
6345 = elf_symbol_from (bfd_asymbol_bfd (bfdsym
), bfdsym
);
6346 gas_assert (elfsym
);
6347 if ((STO_PPC64_LOCAL_MASK
& elfsym
->internal_elf_sym
.st_other
) != 0)
6355 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
6356 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
6357 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
6358 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
6359 && fix
->fx_r_type
!= BFD_RELOC_PPC64_GOT16_DS
6360 && fix
->fx_r_type
!= BFD_RELOC_PPC64_GOT16_LO_DS
6361 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
6362 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
6363 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
6364 && !(fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
6365 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
));
6370 ppc_frag_check (struct frag
*fragP
)
6372 if (!fragP
->has_code
)
6375 if (ppc_mach() == bfd_mach_ppc_vle
)
6377 if (((fragP
->fr_address
+ fragP
->insn_addr
) & 1) != 0)
6378 as_bad (_("instruction address is not a multiple of 2"));
6382 if (((fragP
->fr_address
+ fragP
->insn_addr
) & 3) != 0)
6383 as_bad (_("instruction address is not a multiple of 4"));
6387 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
6388 rs_align_code frag. */
6391 ppc_handle_align (struct frag
*fragP
)
6393 valueT count
= (fragP
->fr_next
->fr_address
6394 - (fragP
->fr_address
+ fragP
->fr_fix
));
6396 if (ppc_mach() == bfd_mach_ppc_vle
&& count
!= 0 && (count
& 1) == 0)
6398 char *dest
= fragP
->fr_literal
+ fragP
->fr_fix
;
6401 md_number_to_chars (dest
, 0x4400, 2);
6403 else if (count
!= 0 && (count
& 3) == 0)
6405 char *dest
= fragP
->fr_literal
+ fragP
->fr_fix
;
6409 if (count
> 4 * nop_limit
&& count
< 0x2000000)
6413 /* Make a branch, then follow with nops. Insert another
6414 frag to handle the nops. */
6415 md_number_to_chars (dest
, 0x48000000 + count
, 4);
6420 rest
= xmalloc (SIZEOF_STRUCT_FRAG
+ 4);
6421 memcpy (rest
, fragP
, SIZEOF_STRUCT_FRAG
);
6422 fragP
->fr_next
= rest
;
6424 rest
->fr_address
+= rest
->fr_fix
+ 4;
6426 /* If we leave the next frag as rs_align_code we'll come here
6427 again, resulting in a bunch of branches rather than a
6428 branch followed by nops. */
6429 rest
->fr_type
= rs_align
;
6430 dest
= rest
->fr_literal
;
6433 md_number_to_chars (dest
, 0x60000000, 4);
6435 if ((ppc_cpu
& PPC_OPCODE_POWER6
) != 0
6436 || (ppc_cpu
& PPC_OPCODE_POWER7
) != 0
6437 || (ppc_cpu
& PPC_OPCODE_POWER8
) != 0)
6439 /* For power6, power7 and power8, we want the last nop to be a group
6440 terminating one. Do this by inserting an rs_fill frag immediately
6441 after this one, with its address set to the last nop location.
6442 This will automatically reduce the number of nops in the current
6446 struct frag
*group_nop
= xmalloc (SIZEOF_STRUCT_FRAG
+ 4);
6448 memcpy (group_nop
, fragP
, SIZEOF_STRUCT_FRAG
);
6449 group_nop
->fr_address
= group_nop
->fr_next
->fr_address
- 4;
6450 group_nop
->fr_fix
= 0;
6451 group_nop
->fr_offset
= 1;
6452 group_nop
->fr_type
= rs_fill
;
6453 fragP
->fr_next
= group_nop
;
6454 dest
= group_nop
->fr_literal
;
6457 if ((ppc_cpu
& PPC_OPCODE_POWER7
) != 0
6458 || (ppc_cpu
& PPC_OPCODE_POWER8
) != 0)
6460 if (ppc_cpu
& PPC_OPCODE_E500MC
)
6461 /* e500mc group terminating nop: "ori 0,0,0". */
6462 md_number_to_chars (dest
, 0x60000000, 4);
6464 /* power7/power8 group terminating nop: "ori 2,2,0". */
6465 md_number_to_chars (dest
, 0x60420000, 4);
6468 /* power6 group terminating nop: "ori 1,1,0". */
6469 md_number_to_chars (dest
, 0x60210000, 4);
6474 /* Apply a fixup to the object code. This is called for all the
6475 fixups we generated by the calls to fix_new_exp, above. */
6478 md_apply_fix (fixS
*fixP
, valueT
*valP
, segT seg
)
6480 valueT value
= * valP
;
6482 const struct powerpc_operand
*operand
;
6485 if (fixP
->fx_addsy
!= NULL
)
6487 /* Hack around bfd_install_relocation brain damage. */
6489 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
6494 /* FIXME FIXME FIXME: The value we are passed in *valP includes
6495 the symbol values. If we are doing this relocation the code in
6496 write.c is going to call bfd_install_relocation, which is also
6497 going to use the symbol value. That means that if the reloc is
6498 fully resolved we want to use *valP since bfd_install_relocation is
6500 However, if the reloc is not fully resolved we do not want to
6501 use *valP, and must use fx_offset instead. If the relocation
6502 is PC-relative, we then need to re-apply md_pcrel_from_section
6503 to this new relocation value. */
6504 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
6509 value
= fixP
->fx_offset
;
6511 value
-= md_pcrel_from_section (fixP
, seg
);
6515 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
6517 /* We can't actually support subtracting a symbol. */
6518 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
6522 if (fixP
->fx_pcrel_adjust
!= 0)
6524 /* This is a fixup on an instruction. */
6525 int opindex
= fixP
->fx_pcrel_adjust
& 0xff;
6527 operand
= &powerpc_operands
[opindex
];
6529 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
6530 does not generate a reloc. It uses the offset of `sym' within its
6531 csect. Other usages, such as `.long sym', generate relocs. This
6532 is the documented behaviour of non-TOC symbols. */
6533 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
6534 && (operand
->bitm
& 0xfff0) == 0xfff0
6535 && operand
->shift
== 0
6536 && (operand
->insert
== NULL
|| ppc_obj64
)
6537 && fixP
->fx_addsy
!= NULL
6538 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
6539 && symbol_get_tc (fixP
->fx_addsy
)->symbol_class
!= XMC_TC
6540 && symbol_get_tc (fixP
->fx_addsy
)->symbol_class
!= XMC_TC0
6541 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
6543 value
= fixP
->fx_offset
;
6547 /* During parsing of instructions, a TOC16 reloc is generated for
6548 instructions such as 'lwz RT,SYM(RB)' if SYM is a symbol defined
6549 in the toc. But at parse time, SYM may be not yet defined, so
6550 check again here. */
6551 if (fixP
->fx_r_type
== BFD_RELOC_16
6552 && fixP
->fx_addsy
!= NULL
6553 && ppc_is_toc_sym (fixP
->fx_addsy
))
6554 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
6558 /* Calculate value to be stored in field. */
6560 switch (fixP
->fx_r_type
)
6563 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
6564 case BFD_RELOC_PPC_VLE_LO16A
:
6565 case BFD_RELOC_PPC_VLE_LO16D
:
6567 case BFD_RELOC_LO16
:
6568 case BFD_RELOC_LO16_PCREL
:
6569 fieldval
= value
& 0xffff;
6571 if (operand
!= NULL
&& (operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
6572 fieldval
= SEX16 (fieldval
);
6573 fixP
->fx_no_overflow
= 1;
6576 case BFD_RELOC_HI16
:
6577 case BFD_RELOC_HI16_PCREL
:
6579 if (REPORT_OVERFLOW_HI
&& ppc_obj64
)
6581 fieldval
= value
>> 16;
6582 if (operand
!= NULL
&& (operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
6584 valueT sign
= (((valueT
) -1 >> 16) + 1) >> 1;
6585 fieldval
= ((valueT
) fieldval
^ sign
) - sign
;
6591 case BFD_RELOC_PPC_VLE_HI16A
:
6592 case BFD_RELOC_PPC_VLE_HI16D
:
6593 case BFD_RELOC_PPC64_ADDR16_HIGH
:
6595 fieldval
= PPC_HI (value
);
6596 goto sign_extend_16
;
6598 case BFD_RELOC_HI16_S
:
6599 case BFD_RELOC_HI16_S_PCREL
:
6601 if (REPORT_OVERFLOW_HI
&& ppc_obj64
)
6603 fieldval
= (value
+ 0x8000) >> 16;
6604 if (operand
!= NULL
&& (operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
6606 valueT sign
= (((valueT
) -1 >> 16) + 1) >> 1;
6607 fieldval
= ((valueT
) fieldval
^ sign
) - sign
;
6613 case BFD_RELOC_PPC_VLE_HA16A
:
6614 case BFD_RELOC_PPC_VLE_HA16D
:
6615 case BFD_RELOC_PPC64_ADDR16_HIGHA
:
6617 fieldval
= PPC_HA (value
);
6618 goto sign_extend_16
;
6621 case BFD_RELOC_PPC64_HIGHER
:
6622 fieldval
= PPC_HIGHER (value
);
6623 goto sign_extend_16
;
6625 case BFD_RELOC_PPC64_HIGHER_S
:
6626 fieldval
= PPC_HIGHERA (value
);
6627 goto sign_extend_16
;
6629 case BFD_RELOC_PPC64_HIGHEST
:
6630 fieldval
= PPC_HIGHEST (value
);
6631 goto sign_extend_16
;
6633 case BFD_RELOC_PPC64_HIGHEST_S
:
6634 fieldval
= PPC_HIGHESTA (value
);
6635 goto sign_extend_16
;
6642 if (operand
!= NULL
)
6644 /* Handle relocs in an insn. */
6648 switch (fixP
->fx_r_type
)
6651 /* The following relocs can't be calculated by the assembler.
6652 Leave the field zero. */
6653 case BFD_RELOC_PPC_TPREL16
:
6654 case BFD_RELOC_PPC_TPREL16_LO
:
6655 case BFD_RELOC_PPC_TPREL16_HI
:
6656 case BFD_RELOC_PPC_TPREL16_HA
:
6657 case BFD_RELOC_PPC_DTPREL16
:
6658 case BFD_RELOC_PPC_DTPREL16_LO
:
6659 case BFD_RELOC_PPC_DTPREL16_HI
:
6660 case BFD_RELOC_PPC_DTPREL16_HA
:
6661 case BFD_RELOC_PPC_GOT_TLSGD16
:
6662 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
6663 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
6664 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
6665 case BFD_RELOC_PPC_GOT_TLSLD16
:
6666 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
6667 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
6668 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
6669 case BFD_RELOC_PPC_GOT_TPREL16
:
6670 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
6671 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
6672 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
6673 case BFD_RELOC_PPC_GOT_DTPREL16
:
6674 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
6675 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
6676 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
6677 case BFD_RELOC_PPC64_TPREL16_DS
:
6678 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
6679 case BFD_RELOC_PPC64_TPREL16_HIGH
:
6680 case BFD_RELOC_PPC64_TPREL16_HIGHA
:
6681 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
6682 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
6683 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
6684 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
6685 case BFD_RELOC_PPC64_DTPREL16_HIGH
:
6686 case BFD_RELOC_PPC64_DTPREL16_HIGHA
:
6687 case BFD_RELOC_PPC64_DTPREL16_DS
:
6688 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
6689 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
6690 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
6691 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
6692 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
6693 gas_assert (fixP
->fx_addsy
!= NULL
);
6694 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
6698 /* These also should leave the field zero for the same
6699 reason. Note that older versions of gas wrote values
6700 here. If we want to go back to the old behaviour, then
6701 all _LO and _LO_DS cases will need to be treated like
6702 BFD_RELOC_LO16_PCREL above. Similarly for _HI etc. */
6703 case BFD_RELOC_16_GOTOFF
:
6704 case BFD_RELOC_LO16_GOTOFF
:
6705 case BFD_RELOC_HI16_GOTOFF
:
6706 case BFD_RELOC_HI16_S_GOTOFF
:
6707 case BFD_RELOC_LO16_PLTOFF
:
6708 case BFD_RELOC_HI16_PLTOFF
:
6709 case BFD_RELOC_HI16_S_PLTOFF
:
6710 case BFD_RELOC_GPREL16
:
6711 case BFD_RELOC_16_BASEREL
:
6712 case BFD_RELOC_LO16_BASEREL
:
6713 case BFD_RELOC_HI16_BASEREL
:
6714 case BFD_RELOC_HI16_S_BASEREL
:
6715 case BFD_RELOC_PPC_TOC16
:
6716 case BFD_RELOC_PPC64_TOC16_LO
:
6717 case BFD_RELOC_PPC64_TOC16_HI
:
6718 case BFD_RELOC_PPC64_TOC16_HA
:
6719 case BFD_RELOC_PPC64_PLTGOT16
:
6720 case BFD_RELOC_PPC64_PLTGOT16_LO
:
6721 case BFD_RELOC_PPC64_PLTGOT16_HI
:
6722 case BFD_RELOC_PPC64_PLTGOT16_HA
:
6723 case BFD_RELOC_PPC64_GOT16_DS
:
6724 case BFD_RELOC_PPC64_GOT16_LO_DS
:
6725 case BFD_RELOC_PPC64_PLT16_LO_DS
:
6726 case BFD_RELOC_PPC64_SECTOFF_DS
:
6727 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
6728 case BFD_RELOC_PPC64_TOC16_DS
:
6729 case BFD_RELOC_PPC64_TOC16_LO_DS
:
6730 case BFD_RELOC_PPC64_PLTGOT16_DS
:
6731 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
6732 case BFD_RELOC_PPC_EMB_NADDR16
:
6733 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
6734 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
6735 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
6736 case BFD_RELOC_PPC_EMB_SDAI16
:
6737 case BFD_RELOC_PPC_EMB_SDA2I16
:
6738 case BFD_RELOC_PPC_EMB_SDA2REL
:
6739 case BFD_RELOC_PPC_EMB_SDA21
:
6740 case BFD_RELOC_PPC_EMB_MRKREF
:
6741 case BFD_RELOC_PPC_EMB_RELSEC16
:
6742 case BFD_RELOC_PPC_EMB_RELST_LO
:
6743 case BFD_RELOC_PPC_EMB_RELST_HI
:
6744 case BFD_RELOC_PPC_EMB_RELST_HA
:
6745 case BFD_RELOC_PPC_EMB_BIT_FLD
:
6746 case BFD_RELOC_PPC_EMB_RELSDA
:
6747 case BFD_RELOC_PPC_VLE_SDA21
:
6748 case BFD_RELOC_PPC_VLE_SDA21_LO
:
6749 case BFD_RELOC_PPC_VLE_SDAREL_LO16A
:
6750 case BFD_RELOC_PPC_VLE_SDAREL_LO16D
:
6751 case BFD_RELOC_PPC_VLE_SDAREL_HI16A
:
6752 case BFD_RELOC_PPC_VLE_SDAREL_HI16D
:
6753 case BFD_RELOC_PPC_VLE_SDAREL_HA16A
:
6754 case BFD_RELOC_PPC_VLE_SDAREL_HA16D
:
6755 gas_assert (fixP
->fx_addsy
!= NULL
);
6758 case BFD_RELOC_PPC_TLS
:
6759 case BFD_RELOC_PPC_TLSGD
:
6760 case BFD_RELOC_PPC_TLSLD
:
6766 case BFD_RELOC_PPC_B16
:
6767 /* Adjust the offset to the instruction boundary. */
6777 /* powerpc uses RELA style relocs, so if emitting a reloc the field
6778 contents can stay at zero. */
6779 #define APPLY_RELOC fixP->fx_done
6781 #define APPLY_RELOC 1
6783 if ((fieldval
!= 0 && APPLY_RELOC
) || operand
->insert
!= NULL
)
6785 /* Fetch the instruction, insert the fully resolved operand
6786 value, and stuff the instruction back again. */
6787 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
6788 if (target_big_endian
)
6790 if (fixP
->fx_size
== 4)
6791 insn
= bfd_getb32 ((unsigned char *) where
);
6793 insn
= bfd_getb16 ((unsigned char *) where
);
6797 if (fixP
->fx_size
== 4)
6798 insn
= bfd_getl32 ((unsigned char *) where
);
6800 insn
= bfd_getl16 ((unsigned char *) where
);
6802 insn
= ppc_insert_operand (insn
, operand
, fieldval
,
6803 fixP
->tc_fix_data
.ppc_cpu
,
6804 fixP
->fx_file
, fixP
->fx_line
);
6805 if (target_big_endian
)
6807 if (fixP
->fx_size
== 4)
6808 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
6810 bfd_putb16 ((bfd_vma
) insn
, (unsigned char *) where
);
6814 if (fixP
->fx_size
== 4)
6815 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
6817 bfd_putl16 ((bfd_vma
) insn
, (unsigned char *) where
);
6822 /* Nothing else to do here. */
6825 gas_assert (fixP
->fx_addsy
!= NULL
);
6826 if (fixP
->fx_r_type
== BFD_RELOC_NONE
)
6831 /* Use expr_symbol_where to see if this is an expression
6833 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
6834 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6835 _("unresolved expression that must be resolved"));
6837 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6838 _("unsupported relocation against %s"),
6839 S_GET_NAME (fixP
->fx_addsy
));
6846 /* Handle relocs in data. */
6847 switch (fixP
->fx_r_type
)
6849 case BFD_RELOC_VTABLE_INHERIT
:
6851 && !S_IS_DEFINED (fixP
->fx_addsy
)
6852 && !S_IS_WEAK (fixP
->fx_addsy
))
6853 S_SET_WEAK (fixP
->fx_addsy
);
6856 case BFD_RELOC_VTABLE_ENTRY
:
6861 /* These can appear with @l etc. in data. */
6862 case BFD_RELOC_LO16
:
6863 case BFD_RELOC_LO16_PCREL
:
6864 case BFD_RELOC_HI16
:
6865 case BFD_RELOC_HI16_PCREL
:
6866 case BFD_RELOC_HI16_S
:
6867 case BFD_RELOC_HI16_S_PCREL
:
6868 case BFD_RELOC_PPC64_HIGHER
:
6869 case BFD_RELOC_PPC64_HIGHER_S
:
6870 case BFD_RELOC_PPC64_HIGHEST
:
6871 case BFD_RELOC_PPC64_HIGHEST_S
:
6872 case BFD_RELOC_PPC64_ADDR16_HIGH
:
6873 case BFD_RELOC_PPC64_ADDR16_HIGHA
:
6874 case BFD_RELOC_PPC64_ADDR64_LOCAL
:
6877 case BFD_RELOC_PPC_DTPMOD
:
6878 case BFD_RELOC_PPC_TPREL
:
6879 case BFD_RELOC_PPC_DTPREL
:
6880 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
6883 /* Just punt all of these to the linker. */
6884 case BFD_RELOC_PPC_B16_BRTAKEN
:
6885 case BFD_RELOC_PPC_B16_BRNTAKEN
:
6886 case BFD_RELOC_16_GOTOFF
:
6887 case BFD_RELOC_LO16_GOTOFF
:
6888 case BFD_RELOC_HI16_GOTOFF
:
6889 case BFD_RELOC_HI16_S_GOTOFF
:
6890 case BFD_RELOC_LO16_PLTOFF
:
6891 case BFD_RELOC_HI16_PLTOFF
:
6892 case BFD_RELOC_HI16_S_PLTOFF
:
6893 case BFD_RELOC_PPC_COPY
:
6894 case BFD_RELOC_PPC_GLOB_DAT
:
6895 case BFD_RELOC_16_BASEREL
:
6896 case BFD_RELOC_LO16_BASEREL
:
6897 case BFD_RELOC_HI16_BASEREL
:
6898 case BFD_RELOC_HI16_S_BASEREL
:
6899 case BFD_RELOC_PPC_TLS
:
6900 case BFD_RELOC_PPC_DTPREL16_LO
:
6901 case BFD_RELOC_PPC_DTPREL16_HI
:
6902 case BFD_RELOC_PPC_DTPREL16_HA
:
6903 case BFD_RELOC_PPC_TPREL16_LO
:
6904 case BFD_RELOC_PPC_TPREL16_HI
:
6905 case BFD_RELOC_PPC_TPREL16_HA
:
6906 case BFD_RELOC_PPC_GOT_TLSGD16
:
6907 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
6908 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
6909 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
6910 case BFD_RELOC_PPC_GOT_TLSLD16
:
6911 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
6912 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
6913 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
6914 case BFD_RELOC_PPC_GOT_DTPREL16
:
6915 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
6916 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
6917 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
6918 case BFD_RELOC_PPC_GOT_TPREL16
:
6919 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
6920 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
6921 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
6922 case BFD_RELOC_24_PLT_PCREL
:
6923 case BFD_RELOC_PPC_LOCAL24PC
:
6924 case BFD_RELOC_32_PLT_PCREL
:
6925 case BFD_RELOC_GPREL16
:
6926 case BFD_RELOC_PPC_VLE_SDAREL_LO16A
:
6927 case BFD_RELOC_PPC_VLE_SDAREL_HI16A
:
6928 case BFD_RELOC_PPC_VLE_SDAREL_HA16A
:
6929 case BFD_RELOC_PPC_EMB_NADDR32
:
6930 case BFD_RELOC_PPC_EMB_NADDR16
:
6931 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
6932 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
6933 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
6934 case BFD_RELOC_PPC_EMB_SDAI16
:
6935 case BFD_RELOC_PPC_EMB_SDA2REL
:
6936 case BFD_RELOC_PPC_EMB_SDA2I16
:
6937 case BFD_RELOC_PPC_EMB_SDA21
:
6938 case BFD_RELOC_PPC_VLE_SDA21_LO
:
6939 case BFD_RELOC_PPC_EMB_MRKREF
:
6940 case BFD_RELOC_PPC_EMB_RELSEC16
:
6941 case BFD_RELOC_PPC_EMB_RELST_LO
:
6942 case BFD_RELOC_PPC_EMB_RELST_HI
:
6943 case BFD_RELOC_PPC_EMB_RELST_HA
:
6944 case BFD_RELOC_PPC_EMB_BIT_FLD
:
6945 case BFD_RELOC_PPC_EMB_RELSDA
:
6946 case BFD_RELOC_PPC64_TOC
:
6947 case BFD_RELOC_PPC_TOC16
:
6948 case BFD_RELOC_PPC64_TOC16_LO
:
6949 case BFD_RELOC_PPC64_TOC16_HI
:
6950 case BFD_RELOC_PPC64_TOC16_HA
:
6951 case BFD_RELOC_PPC64_DTPREL16_HIGH
:
6952 case BFD_RELOC_PPC64_DTPREL16_HIGHA
:
6953 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
6954 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
6955 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
6956 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
6957 case BFD_RELOC_PPC64_TPREL16_HIGH
:
6958 case BFD_RELOC_PPC64_TPREL16_HIGHA
:
6959 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
6960 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
6961 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
6962 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
6968 case BFD_RELOC_NONE
:
6970 case BFD_RELOC_CTOR
:
6972 case BFD_RELOC_32_PCREL
:
6975 case BFD_RELOC_64_PCREL
:
6977 case BFD_RELOC_16_PCREL
:
6983 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
6988 if (fixP
->fx_size
&& APPLY_RELOC
)
6989 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6990 fieldval
, fixP
->fx_size
);
6992 && (seg
->flags
& SEC_CODE
) != 0
6993 && fixP
->fx_size
== 4
6996 && (fixP
->fx_r_type
== BFD_RELOC_32
6997 || fixP
->fx_r_type
== BFD_RELOC_CTOR
6998 || fixP
->fx_r_type
== BFD_RELOC_32_PCREL
))
6999 as_warn_where (fixP
->fx_file
, fixP
->fx_line
,
7000 _("data in executable section"));
7003 /* We are only able to convert some relocs to pc-relative. */
7004 if (!fixP
->fx_done
&& fixP
->fx_pcrel
)
7006 switch (fixP
->fx_r_type
)
7008 case BFD_RELOC_LO16
:
7009 fixP
->fx_r_type
= BFD_RELOC_LO16_PCREL
;
7012 case BFD_RELOC_HI16
:
7013 fixP
->fx_r_type
= BFD_RELOC_HI16_PCREL
;
7016 case BFD_RELOC_HI16_S
:
7017 fixP
->fx_r_type
= BFD_RELOC_HI16_S_PCREL
;
7021 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
7025 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
7029 fixP
->fx_r_type
= BFD_RELOC_16_PCREL
;
7032 /* Some of course are already pc-relative. */
7033 case BFD_RELOC_LO16_PCREL
:
7034 case BFD_RELOC_HI16_PCREL
:
7035 case BFD_RELOC_HI16_S_PCREL
:
7036 case BFD_RELOC_64_PCREL
:
7037 case BFD_RELOC_32_PCREL
:
7038 case BFD_RELOC_16_PCREL
:
7039 case BFD_RELOC_PPC_B16
:
7040 case BFD_RELOC_PPC_B16_BRTAKEN
:
7041 case BFD_RELOC_PPC_B16_BRNTAKEN
:
7042 case BFD_RELOC_PPC_B26
:
7043 case BFD_RELOC_PPC_LOCAL24PC
:
7044 case BFD_RELOC_24_PLT_PCREL
:
7045 case BFD_RELOC_32_PLT_PCREL
:
7046 case BFD_RELOC_64_PLT_PCREL
:
7047 case BFD_RELOC_PPC_VLE_REL8
:
7048 case BFD_RELOC_PPC_VLE_REL15
:
7049 case BFD_RELOC_PPC_VLE_REL24
:
7058 /* Use expr_symbol_where to see if this is an
7059 expression symbol. */
7060 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
7061 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
7062 _("unresolved expression that must"
7065 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
7066 _("cannot emit PC relative %s relocation"
7068 bfd_get_reloc_code_name (fixP
->fx_r_type
),
7069 S_GET_NAME (fixP
->fx_addsy
));
7072 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
7073 _("unable to resolve expression"));
7080 ppc_elf_validate_fix (fixP
, seg
);
7081 fixP
->fx_addnumber
= value
;
7083 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
7084 from the section contents. If we are going to be emitting a reloc
7085 then the section contents are immaterial, so don't warn if they
7086 happen to overflow. Leave such warnings to ld. */
7089 fixP
->fx_no_overflow
= 1;
7091 /* Arrange to emit .TOC. as a normal symbol if used in anything
7092 but .TOC.@tocbase. */
7094 && fixP
->fx_r_type
!= BFD_RELOC_PPC64_TOC
7095 && fixP
->fx_addsy
!= NULL
7096 && strcmp (S_GET_NAME (fixP
->fx_addsy
), ".TOC.") == 0)
7097 symbol_get_bfdsym (fixP
->fx_addsy
)->flags
|= BSF_KEEP
;
7100 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
7101 fixP
->fx_addnumber
= 0;
7105 fixP
->fx_addnumber
= 0;
7107 /* We want to use the offset within the toc, not the actual VMA
7109 fixP
->fx_addnumber
=
7110 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
))
7111 - S_GET_VALUE (ppc_toc_csect
);
7112 /* Set *valP to avoid errors. */
7119 /* Generate a reloc for a fixup. */
7122 tc_gen_reloc (asection
*seg ATTRIBUTE_UNUSED
, fixS
*fixp
)
7126 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
7128 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
7129 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
7130 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
7131 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
7132 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
7134 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
7135 _("reloc %d not supported by object file format"),
7136 (int) fixp
->fx_r_type
);
7139 reloc
->addend
= fixp
->fx_addnumber
;
7145 ppc_cfi_frame_initial_instructions (void)
7147 cfi_add_CFA_def_cfa (1, 0);
7151 tc_ppc_regname_to_dw2regnum (char *regname
)
7153 unsigned int regnum
= -1;
7157 static struct { char *name
; int dw2regnum
; } regnames
[] =
7159 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
7160 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
7161 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
7162 { "spe_acc", 111 }, { "spefscr", 112 }
7165 for (i
= 0; i
< ARRAY_SIZE (regnames
); ++i
)
7166 if (strcmp (regnames
[i
].name
, regname
) == 0)
7167 return regnames
[i
].dw2regnum
;
7169 if (regname
[0] == 'r' || regname
[0] == 'f' || regname
[0] == 'v')
7171 p
= regname
+ 1 + (regname
[1] == '.');
7172 regnum
= strtoul (p
, &q
, 10);
7173 if (p
== q
|| *q
|| regnum
>= 32)
7175 if (regname
[0] == 'f')
7177 else if (regname
[0] == 'v')
7180 else if (regname
[0] == 'c' && regname
[1] == 'r')
7182 p
= regname
+ 2 + (regname
[2] == '.');
7183 if (p
[0] < '0' || p
[0] > '7' || p
[1])
7185 regnum
= p
[0] - '0' + 68;