1 /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000)
2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
4 Written by Ian Lance Taylor, Cygnus Support.
6 This file is part of GAS, the GNU Assembler.
8 GAS is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
13 GAS is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GAS; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
24 #include "safe-ctype.h"
26 #include "dw2gencfi.h"
27 #include "opcode/ppc.h"
31 #include "dwarf2dbg.h"
38 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
40 /* Tell the main code what the endianness is. */
41 extern int target_big_endian
;
43 /* Whether or not, we've set target_big_endian. */
44 static int set_target_endian
= 0;
46 /* Whether to use user friendly register names. */
47 #ifndef TARGET_REG_NAMES_P
49 #define TARGET_REG_NAMES_P TRUE
51 #define TARGET_REG_NAMES_P FALSE
55 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
58 /* #lo(value) denotes the least significant 16 bits of the indicated. */
59 #define PPC_LO(v) ((v) & 0xffff)
61 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
62 #define PPC_HI(v) (((v) >> 16) & 0xffff)
64 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
65 the indicated value, compensating for #lo() being treated as a
67 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
69 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
70 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
72 /* #highera(value) denotes bits 32 through 47 of the indicated value,
73 compensating for #lo() being treated as a signed number. */
74 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
76 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
77 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
79 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
80 compensating for #lo being treated as a signed number. */
81 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
83 #define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000)
85 static bfd_boolean reg_names_p
= TARGET_REG_NAMES_P
;
87 static void ppc_macro (char *, const struct powerpc_macro
*);
88 static void ppc_byte (int);
90 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
91 static void ppc_tc (int);
92 static void ppc_machine (int);
96 static void ppc_comm (int);
97 static void ppc_bb (int);
98 static void ppc_bc (int);
99 static void ppc_bf (int);
100 static void ppc_biei (int);
101 static void ppc_bs (int);
102 static void ppc_eb (int);
103 static void ppc_ec (int);
104 static void ppc_ef (int);
105 static void ppc_es (int);
106 static void ppc_csect (int);
107 static void ppc_change_csect (symbolS
*, offsetT
);
108 static void ppc_function (int);
109 static void ppc_extern (int);
110 static void ppc_lglobl (int);
111 static void ppc_ref (int);
112 static void ppc_section (int);
113 static void ppc_named_section (int);
114 static void ppc_stabx (int);
115 static void ppc_rename (int);
116 static void ppc_toc (int);
117 static void ppc_xcoff_cons (int);
118 static void ppc_vbyte (int);
122 static void ppc_elf_cons (int);
123 static void ppc_elf_rdata (int);
124 static void ppc_elf_lcomm (int);
128 static void ppc_previous (int);
129 static void ppc_pdata (int);
130 static void ppc_ydata (int);
131 static void ppc_reldata (int);
132 static void ppc_rdata (int);
133 static void ppc_ualong (int);
134 static void ppc_znop (int);
135 static void ppc_pe_comm (int);
136 static void ppc_pe_section (int);
137 static void ppc_pe_function (int);
138 static void ppc_pe_tocd (int);
141 /* Generic assembler global variables which must be defined by all
145 /* This string holds the chars that always start a comment. If the
146 pre-processor is disabled, these aren't very useful. The macro
147 tc_comment_chars points to this. We use this, rather than the
148 usual comment_chars, so that we can switch for Solaris conventions. */
149 static const char ppc_solaris_comment_chars
[] = "#!";
150 static const char ppc_eabi_comment_chars
[] = "#";
152 #ifdef TARGET_SOLARIS_COMMENT
153 const char *ppc_comment_chars
= ppc_solaris_comment_chars
;
155 const char *ppc_comment_chars
= ppc_eabi_comment_chars
;
158 const char comment_chars
[] = "#";
161 /* Characters which start a comment at the beginning of a line. */
162 const char line_comment_chars
[] = "#";
164 /* Characters which may be used to separate multiple commands on a
166 const char line_separator_chars
[] = ";";
168 /* Characters which are used to indicate an exponent in a floating
170 const char EXP_CHARS
[] = "eE";
172 /* Characters which mean that a number is a floating point constant,
174 const char FLT_CHARS
[] = "dD";
176 /* Anything that can start an operand needs to be mentioned here,
177 to stop the input scrubber eating whitespace. */
178 const char ppc_symbol_chars
[] = "%[";
180 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
181 int ppc_cie_data_alignment
;
183 /* The type of processor we are assembling for. This is one or more
184 of the PPC_OPCODE flags defined in opcode/ppc.h. */
185 ppc_cpu_t ppc_cpu
= 0;
187 /* Flags set on encountering toc relocs. */
189 has_large_toc_reloc
= 1,
190 has_small_toc_reloc
= 2
193 /* The target specific pseudo-ops which we support. */
195 const pseudo_typeS md_pseudo_table
[] =
197 /* Pseudo-ops which must be overridden. */
198 { "byte", ppc_byte
, 0 },
201 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
202 legitimately belong in the obj-*.c file. However, XCOFF is based
203 on COFF, and is only implemented for the RS/6000. We just use
204 obj-coff.c, and add what we need here. */
205 { "comm", ppc_comm
, 0 },
206 { "lcomm", ppc_comm
, 1 },
210 { "bi", ppc_biei
, 0 },
212 { "csect", ppc_csect
, 0 },
213 { "data", ppc_section
, 'd' },
217 { "ei", ppc_biei
, 1 },
219 { "extern", ppc_extern
, 0 },
220 { "function", ppc_function
, 0 },
221 { "lglobl", ppc_lglobl
, 0 },
222 { "ref", ppc_ref
, 0 },
223 { "rename", ppc_rename
, 0 },
224 { "section", ppc_named_section
, 0 },
225 { "stabx", ppc_stabx
, 0 },
226 { "text", ppc_section
, 't' },
227 { "toc", ppc_toc
, 0 },
228 { "long", ppc_xcoff_cons
, 2 },
229 { "llong", ppc_xcoff_cons
, 3 },
230 { "word", ppc_xcoff_cons
, 1 },
231 { "short", ppc_xcoff_cons
, 1 },
232 { "vbyte", ppc_vbyte
, 0 },
236 { "llong", ppc_elf_cons
, 8 },
237 { "quad", ppc_elf_cons
, 8 },
238 { "long", ppc_elf_cons
, 4 },
239 { "word", ppc_elf_cons
, 2 },
240 { "short", ppc_elf_cons
, 2 },
241 { "rdata", ppc_elf_rdata
, 0 },
242 { "rodata", ppc_elf_rdata
, 0 },
243 { "lcomm", ppc_elf_lcomm
, 0 },
247 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
248 { "previous", ppc_previous
, 0 },
249 { "pdata", ppc_pdata
, 0 },
250 { "ydata", ppc_ydata
, 0 },
251 { "reldata", ppc_reldata
, 0 },
252 { "rdata", ppc_rdata
, 0 },
253 { "ualong", ppc_ualong
, 0 },
254 { "znop", ppc_znop
, 0 },
255 { "comm", ppc_pe_comm
, 0 },
256 { "lcomm", ppc_pe_comm
, 1 },
257 { "section", ppc_pe_section
, 0 },
258 { "function", ppc_pe_function
,0 },
259 { "tocd", ppc_pe_tocd
, 0 },
262 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
264 { "machine", ppc_machine
, 0 },
271 /* Predefined register names if -mregnames (or default for Windows NT).
272 In general, there are lots of them, in an attempt to be compatible
273 with a number of other Windows NT assemblers. */
275 /* Structure to hold information about predefined registers. */
282 /* List of registers that are pre-defined:
284 Each general register has predefined names of the form:
285 1. r<reg_num> which has the value <reg_num>.
286 2. r.<reg_num> which has the value <reg_num>.
288 Each floating point register has predefined names of the form:
289 1. f<reg_num> which has the value <reg_num>.
290 2. f.<reg_num> which has the value <reg_num>.
292 Each vector unit register has predefined names of the form:
293 1. v<reg_num> which has the value <reg_num>.
294 2. v.<reg_num> which has the value <reg_num>.
296 Each condition register has predefined names of the form:
297 1. cr<reg_num> which has the value <reg_num>.
298 2. cr.<reg_num> which has the value <reg_num>.
300 There are individual registers as well:
301 sp or r.sp has the value 1
302 rtoc or r.toc has the value 2
303 fpscr has the value 0
309 dsisr has the value 18
311 sdr1 has the value 25
312 srr0 has the value 26
313 srr1 has the value 27
315 The table is sorted. Suitable for searching by a binary search. */
317 static const struct pd_reg pre_defined_registers
[] =
319 { "cr.0", 0 }, /* Condition Registers */
339 { "dar", 19 }, /* Data Access Register */
340 { "dec", 22 }, /* Decrementer */
341 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
343 { "f.0", 0 }, /* Floating point registers */
370 { "f.32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
436 { "f32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
477 /* Quantization registers used with pair single instructions. */
495 { "lr", 8 }, /* Link Register */
499 { "r.0", 0 }, /* General Purpose Registers */
532 { "r.sp", 1 }, /* Stack Pointer */
534 { "r.toc", 2 }, /* Pointer to the table of contents */
536 { "r0", 0 }, /* More general purpose registers */
569 { "rtoc", 2 }, /* Table of contents */
571 { "sdr1", 25 }, /* Storage Description Register 1 */
575 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
576 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
578 { "v.0", 0 }, /* Vector (Altivec/VMX) registers */
644 { "vs.0", 0 }, /* Vector Scalar (VSX) registers (ISA 2.06). */
778 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
780 /* Given NAME, find the register number associated with that name, return
781 the integer value associated with the given name or -1 on failure. */
784 reg_name_search (const struct pd_reg
*regs
, int regcount
, const char *name
)
786 int middle
, low
, high
;
794 middle
= (low
+ high
) / 2;
795 cmp
= strcasecmp (name
, regs
[middle
].name
);
801 return regs
[middle
].value
;
809 * Summary of register_name.
811 * in: Input_line_pointer points to 1st char of operand.
813 * out: A expressionS.
814 * The operand may have been a register: in this case, X_op == O_register,
815 * X_add_number is set to the register number, and truth is returned.
816 * Input_line_pointer->(next non-blank) char after operand, or is in its
821 register_name (expressionS
*expressionP
)
828 /* Find the spelling of the operand. */
829 start
= name
= input_line_pointer
;
830 if (name
[0] == '%' && ISALPHA (name
[1]))
831 name
= ++input_line_pointer
;
833 else if (!reg_names_p
|| !ISALPHA (name
[0]))
836 c
= get_symbol_end ();
837 reg_number
= reg_name_search (pre_defined_registers
, REG_NAME_CNT
, name
);
839 /* Put back the delimiting char. */
840 *input_line_pointer
= c
;
842 /* Look to see if it's in the register table. */
845 expressionP
->X_op
= O_register
;
846 expressionP
->X_add_number
= reg_number
;
848 /* Make the rest nice. */
849 expressionP
->X_add_symbol
= NULL
;
850 expressionP
->X_op_symbol
= NULL
;
854 /* Reset the line as if we had not done anything. */
855 input_line_pointer
= start
;
859 /* This function is called for each symbol seen in an expression. It
860 handles the special parsing which PowerPC assemblers are supposed
861 to use for condition codes. */
863 /* Whether to do the special parsing. */
864 static bfd_boolean cr_operand
;
866 /* Names to recognize in a condition code. This table is sorted. */
867 static const struct pd_reg cr_names
[] =
884 /* Parsing function. This returns non-zero if it recognized an
888 ppc_parse_name (const char *name
, expressionS
*exp
)
897 val
= reg_name_search (cr_names
, sizeof cr_names
/ sizeof cr_names
[0],
902 exp
->X_op
= O_constant
;
903 exp
->X_add_number
= val
;
908 /* Local variables. */
910 /* Whether to target xcoff64/elf64. */
911 static unsigned int ppc_obj64
= BFD_DEFAULT_TARGET_SIZE
== 64;
913 /* Opcode hash table. */
914 static struct hash_control
*ppc_hash
;
916 /* Macro hash table. */
917 static struct hash_control
*ppc_macro_hash
;
920 /* What type of shared library support to use. */
921 static enum { SHLIB_NONE
, SHLIB_PIC
, SHLIB_MRELOCATABLE
} shlib
= SHLIB_NONE
;
923 /* Flags to set in the elf header. */
924 static flagword ppc_flags
= 0;
926 /* Whether this is Solaris or not. */
927 #ifdef TARGET_SOLARIS_COMMENT
928 #define SOLARIS_P TRUE
930 #define SOLARIS_P FALSE
933 static bfd_boolean msolaris
= SOLARIS_P
;
938 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
939 using a bunch of different sections. These assembler sections,
940 however, are all encompassed within the .text or .data sections of
941 the final output file. We handle this by using different
942 subsegments within these main segments. */
944 /* Next subsegment to allocate within the .text segment. */
945 static subsegT ppc_text_subsegment
= 2;
947 /* Linked list of csects in the text section. */
948 static symbolS
*ppc_text_csects
;
950 /* Next subsegment to allocate within the .data segment. */
951 static subsegT ppc_data_subsegment
= 2;
953 /* Linked list of csects in the data section. */
954 static symbolS
*ppc_data_csects
;
956 /* The current csect. */
957 static symbolS
*ppc_current_csect
;
959 /* The RS/6000 assembler uses a TOC which holds addresses of functions
960 and variables. Symbols are put in the TOC with the .tc pseudo-op.
961 A special relocation is used when accessing TOC entries. We handle
962 the TOC as a subsegment within the .data segment. We set it up if
963 we see a .toc pseudo-op, and save the csect symbol here. */
964 static symbolS
*ppc_toc_csect
;
966 /* The first frag in the TOC subsegment. */
967 static fragS
*ppc_toc_frag
;
969 /* The first frag in the first subsegment after the TOC in the .data
970 segment. NULL if there are no subsegments after the TOC. */
971 static fragS
*ppc_after_toc_frag
;
973 /* The current static block. */
974 static symbolS
*ppc_current_block
;
976 /* The COFF debugging section; set by md_begin. This is not the
977 .debug section, but is instead the secret BFD section which will
978 cause BFD to set the section number of a symbol to N_DEBUG. */
979 static asection
*ppc_coff_debug_section
;
981 #endif /* OBJ_XCOFF */
985 /* Various sections that we need for PE coff support. */
986 static segT ydata_section
;
987 static segT pdata_section
;
988 static segT reldata_section
;
989 static segT rdata_section
;
990 static segT tocdata_section
;
992 /* The current section and the previous section. See ppc_previous. */
993 static segT ppc_previous_section
;
994 static segT ppc_current_section
;
999 symbolS
*GOT_symbol
; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
1000 #define PPC_APUINFO_ISEL 0x40
1001 #define PPC_APUINFO_PMR 0x41
1002 #define PPC_APUINFO_RFMCI 0x42
1003 #define PPC_APUINFO_CACHELCK 0x43
1004 #define PPC_APUINFO_SPE 0x100
1005 #define PPC_APUINFO_EFS 0x101
1006 #define PPC_APUINFO_BRLOCK 0x102
1009 * We keep a list of APUinfo
1011 unsigned long *ppc_apuinfo_list
;
1012 unsigned int ppc_apuinfo_num
;
1013 unsigned int ppc_apuinfo_num_alloc
;
1014 #endif /* OBJ_ELF */
1017 const char *const md_shortopts
= "b:l:usm:K:VQ:";
1019 const char *const md_shortopts
= "um:";
1021 const struct option md_longopts
[] = {
1022 {NULL
, no_argument
, NULL
, 0}
1024 const size_t md_longopts_size
= sizeof (md_longopts
);
1027 md_parse_option (int c
, char *arg
)
1034 /* -u means that any undefined symbols should be treated as
1035 external, which is the default for gas anyhow. */
1040 /* Solaris as takes -le (presumably for little endian). For completeness
1041 sake, recognize -be also. */
1042 if (strcmp (arg
, "e") == 0)
1044 target_big_endian
= 0;
1045 set_target_endian
= 1;
1053 if (strcmp (arg
, "e") == 0)
1055 target_big_endian
= 1;
1056 set_target_endian
= 1;
1064 /* Recognize -K PIC. */
1065 if (strcmp (arg
, "PIC") == 0 || strcmp (arg
, "pic") == 0)
1068 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
1076 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
1078 if (strcmp (arg
, "64") == 0)
1083 as_fatal (_("%s unsupported"), "-a64");
1086 else if (strcmp (arg
, "32") == 0)
1093 if ((new_cpu
= ppc_parse_cpu (ppc_cpu
, arg
)) != 0)
1096 else if (strcmp (arg
, "regnames") == 0)
1099 else if (strcmp (arg
, "no-regnames") == 0)
1100 reg_names_p
= FALSE
;
1103 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1104 that require relocation. */
1105 else if (strcmp (arg
, "relocatable") == 0)
1107 shlib
= SHLIB_MRELOCATABLE
;
1108 ppc_flags
|= EF_PPC_RELOCATABLE
;
1111 else if (strcmp (arg
, "relocatable-lib") == 0)
1113 shlib
= SHLIB_MRELOCATABLE
;
1114 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
1117 /* -memb, set embedded bit. */
1118 else if (strcmp (arg
, "emb") == 0)
1119 ppc_flags
|= EF_PPC_EMB
;
1121 /* -mlittle/-mbig set the endianess. */
1122 else if (strcmp (arg
, "little") == 0
1123 || strcmp (arg
, "little-endian") == 0)
1125 target_big_endian
= 0;
1126 set_target_endian
= 1;
1129 else if (strcmp (arg
, "big") == 0 || strcmp (arg
, "big-endian") == 0)
1131 target_big_endian
= 1;
1132 set_target_endian
= 1;
1135 else if (strcmp (arg
, "solaris") == 0)
1138 ppc_comment_chars
= ppc_solaris_comment_chars
;
1141 else if (strcmp (arg
, "no-solaris") == 0)
1144 ppc_comment_chars
= ppc_eabi_comment_chars
;
1149 as_bad (_("invalid switch -m%s"), arg
);
1155 /* -V: SVR4 argument to print version ID. */
1157 print_version_id ();
1160 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1161 should be emitted or not. FIXME: Not implemented. */
1165 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1166 rather than .stabs.excl, which is ignored by the linker.
1167 FIXME: Not implemented. */
1183 md_show_usage (FILE *stream
)
1185 fprintf (stream
, _("\
1187 -a32 generate ELF32/XCOFF32\n\
1188 -a64 generate ELF64/XCOFF64\n\
1190 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1191 -mpwr generate code for POWER (RIOS1)\n\
1192 -m601 generate code for PowerPC 601\n\
1193 -mppc, -mppc32, -m603, -m604\n\
1194 generate code for PowerPC 603/604\n\
1195 -m403 generate code for PowerPC 403\n\
1196 -m405 generate code for PowerPC 405\n\
1197 -m440 generate code for PowerPC 440\n\
1198 -m464 generate code for PowerPC 464\n\
1199 -m476 generate code for PowerPC 476\n\
1200 -m7400, -m7410, -m7450, -m7455\n\
1201 generate code for PowerPC 7400/7410/7450/7455\n\
1202 -m750cl generate code for PowerPC 750cl\n"));
1203 fprintf (stream
, _("\
1204 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1205 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1206 -mbooke generate code for 32-bit PowerPC BookE\n\
1207 -ma2 generate code for A2 architecture\n\
1208 -mpower4, -mpwr4 generate code for Power4 architecture\n\
1209 -mpower5, -mpwr5, -mpwr5x\n\
1210 generate code for Power5 architecture\n\
1211 -mpower6, -mpwr6 generate code for Power6 architecture\n\
1212 -mpower7, -mpwr7 generate code for Power7 architecture\n\
1213 -mcell generate code for Cell Broadband Engine architecture\n\
1214 -mcom generate code Power/PowerPC common instructions\n\
1215 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1216 fprintf (stream
, _("\
1217 -maltivec generate code for AltiVec\n\
1218 -mvsx generate code for Vector-Scalar (VSX) instructions\n\
1219 -me300 generate code for PowerPC e300 family\n\
1220 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1221 -me500mc, generate code for Freescale e500mc core complex\n\
1222 -me500mc64, generate code for Freescale e500mc64 core complex\n\
1223 -mspe generate code for Motorola SPE instructions\n\
1224 -mtitan generate code for AppliedMicro Titan core complex\n\
1225 -mregnames Allow symbolic names for registers\n\
1226 -mno-regnames Do not allow symbolic names for registers\n"));
1228 fprintf (stream
, _("\
1229 -mrelocatable support for GCC's -mrelocatble option\n\
1230 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1231 -memb set PPC_EMB bit in ELF flags\n\
1232 -mlittle, -mlittle-endian, -l, -le\n\
1233 generate code for a little endian machine\n\
1234 -mbig, -mbig-endian, -b, -be\n\
1235 generate code for a big endian machine\n\
1236 -msolaris generate code for Solaris\n\
1237 -mno-solaris do not generate code for Solaris\n\
1238 -V print assembler version number\n\
1239 -Qy, -Qn ignored\n"));
1243 /* Set ppc_cpu if it is not already set. */
1248 const char *default_os
= TARGET_OS
;
1249 const char *default_cpu
= TARGET_CPU
;
1251 if ((ppc_cpu
& ~PPC_OPCODE_ANY
) == 0)
1254 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
1255 else if (strncmp (default_os
, "aix", 3) == 0
1256 && default_os
[3] >= '4' && default_os
[3] <= '9')
1257 ppc_cpu
|= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
1258 else if (strncmp (default_os
, "aix3", 4) == 0)
1259 ppc_cpu
|= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1260 else if (strcmp (default_cpu
, "rs6000") == 0)
1261 ppc_cpu
|= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1262 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1263 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
;
1265 as_fatal (_("Unknown default cpu = %s, os = %s"),
1266 default_cpu
, default_os
);
1270 /* Figure out the BFD architecture to use. This function and ppc_mach
1271 are called well before md_begin, when the output file is opened. */
1273 enum bfd_architecture
1276 const char *default_cpu
= TARGET_CPU
;
1279 if ((ppc_cpu
& PPC_OPCODE_PPC
) != 0)
1280 return bfd_arch_powerpc
;
1281 else if ((ppc_cpu
& PPC_OPCODE_POWER
) != 0)
1282 return bfd_arch_rs6000
;
1283 else if ((ppc_cpu
& (PPC_OPCODE_COMMON
| PPC_OPCODE_ANY
)) != 0)
1285 if (strcmp (default_cpu
, "rs6000") == 0)
1286 return bfd_arch_rs6000
;
1287 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1288 return bfd_arch_powerpc
;
1291 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1292 return bfd_arch_unknown
;
1299 return bfd_mach_ppc64
;
1300 else if (ppc_arch () == bfd_arch_rs6000
)
1301 return bfd_mach_rs6k
;
1302 else if (ppc_cpu
& PPC_OPCODE_TITAN
)
1303 return bfd_mach_ppc_titan
;
1305 return bfd_mach_ppc
;
1309 ppc_target_format (void)
1313 return target_big_endian
? "pe-powerpc" : "pe-powerpcle";
1315 return "xcoff-powermac";
1318 return (ppc_obj64
? "aix5coff64-rs6000" : "aixcoff-rs6000");
1320 return (ppc_obj64
? "aixcoff64-rs6000" : "aixcoff-rs6000");
1326 return "elf32-powerpc-vxworks";
1328 return (target_big_endian
1329 ? (ppc_obj64
? "elf64-powerpc" : "elf32-powerpc")
1330 : (ppc_obj64
? "elf64-powerpcle" : "elf32-powerpcle"));
1335 /* Insert opcodes and macros into hash tables. Called at startup and
1339 ppc_setup_opcodes (void)
1341 const struct powerpc_opcode
*op
;
1342 const struct powerpc_opcode
*op_end
;
1343 const struct powerpc_macro
*macro
;
1344 const struct powerpc_macro
*macro_end
;
1345 bfd_boolean bad_insn
= FALSE
;
1347 if (ppc_hash
!= NULL
)
1348 hash_die (ppc_hash
);
1349 if (ppc_macro_hash
!= NULL
)
1350 hash_die (ppc_macro_hash
);
1352 /* Insert the opcodes into a hash table. */
1353 ppc_hash
= hash_new ();
1355 if (ENABLE_CHECKING
)
1359 /* Check operand masks. Code here and in the disassembler assumes
1360 all the 1's in the mask are contiguous. */
1361 for (i
= 0; i
< num_powerpc_operands
; ++i
)
1363 unsigned long mask
= powerpc_operands
[i
].bitm
;
1364 unsigned long right_bit
;
1367 right_bit
= mask
& -mask
;
1369 right_bit
= mask
& -mask
;
1370 if (mask
!= right_bit
)
1372 as_bad (_("powerpc_operands[%d].bitm invalid"), i
);
1375 for (j
= i
+ 1; j
< num_powerpc_operands
; ++j
)
1376 if (memcmp (&powerpc_operands
[i
], &powerpc_operands
[j
],
1377 sizeof (powerpc_operands
[0])) == 0)
1379 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1386 op_end
= powerpc_opcodes
+ powerpc_num_opcodes
;
1387 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1389 if (ENABLE_CHECKING
)
1391 const unsigned char *o
;
1392 unsigned long omask
= op
->mask
;
1394 if (op
!= powerpc_opcodes
)
1396 /* The major opcodes had better be sorted. Code in the
1397 disassembler assumes the insns are sorted according to
1399 if (PPC_OP (op
[0].opcode
) < PPC_OP (op
[-1].opcode
))
1401 as_bad (_("major opcode is not sorted for %s"),
1406 /* Warn if the table isn't more strictly ordered.
1407 Unfortunately it doesn't seem possible to order the
1408 table on much more than the major opcode, which makes
1409 it difficult to implement a binary search in the
1410 disassembler. The problem is that we have multiple
1411 ways to disassemble instructions, and we usually want
1412 to choose a more specific form (with more bits set in
1413 the opcode) than a more general form. eg. all of the
1414 following are equivalent:
1415 bne label # opcode = 0x40820000, mask = 0xff830003
1416 bf 2,label # opcode = 0x40800000, mask = 0xff800003
1417 bc 4,2,label # opcode = 0x40000000, mask = 0xfc000003
1419 There are also cases where the table needs to be out
1420 of order to disassemble the correct instruction for
1421 processor variants. */
1424 unsigned long t1
= op
[0].opcode
;
1425 unsigned long t2
= op
[-1].opcode
;
1427 if (((t1
^ t2
) & 0xfc0007ff) == 0
1428 && (t1
& 0xfc0006df) == 0x7c000286)
1430 /* spr field is split. */
1431 t1
= ((t1
& ~0x1ff800)
1432 | ((t1
& 0xf800) << 5) | ((t1
& 0x1f0000) >> 5));
1433 t2
= ((t2
& ~0x1ff800)
1434 | ((t2
& 0xf800) << 5) | ((t2
& 0x1f0000) >> 5));
1437 as_warn (_("%s (%08lx %08lx) after %s (%08lx %08lx)"),
1438 op
[0].name
, op
[0].opcode
, op
[0].mask
,
1439 op
[-1].name
, op
[-1].opcode
, op
[-1].mask
);
1443 /* The mask had better not trim off opcode bits. */
1444 if ((op
->opcode
& omask
) != op
->opcode
)
1446 as_bad (_("mask trims opcode bits for %s"),
1451 /* The operands must not overlap the opcode or each other. */
1452 for (o
= op
->operands
; *o
; ++o
)
1453 if (*o
>= num_powerpc_operands
)
1455 as_bad (_("operand index error for %s"),
1461 const struct powerpc_operand
*operand
= &powerpc_operands
[*o
];
1462 if (operand
->shift
>= 0)
1464 unsigned long mask
= operand
->bitm
<< operand
->shift
;
1467 as_bad (_("operand %d overlap in %s"),
1468 (int) (o
- op
->operands
), op
->name
);
1476 if ((op
->flags
& ppc_cpu
& ~(PPC_OPCODE_32
| PPC_OPCODE_64
)) != 0
1477 && ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
)) == 0
1478 || ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
))
1479 == (ppc_cpu
& (PPC_OPCODE_32
| PPC_OPCODE_64
)))
1480 || (ppc_cpu
& PPC_OPCODE_64_BRIDGE
) != 0)
1481 && !(ppc_cpu
& op
->deprecated
))
1485 retval
= hash_insert (ppc_hash
, op
->name
, (void *) op
);
1488 /* Ignore Power duplicates for -m601. */
1489 if ((ppc_cpu
& PPC_OPCODE_601
) != 0
1490 && (op
->flags
& PPC_OPCODE_POWER
) != 0)
1493 as_bad (_("duplicate instruction %s"),
1500 if ((ppc_cpu
& PPC_OPCODE_ANY
) != 0)
1501 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1502 hash_insert (ppc_hash
, op
->name
, (void *) op
);
1504 /* Insert the macros into a hash table. */
1505 ppc_macro_hash
= hash_new ();
1507 macro_end
= powerpc_macros
+ powerpc_num_macros
;
1508 for (macro
= powerpc_macros
; macro
< macro_end
; macro
++)
1510 if ((macro
->flags
& ppc_cpu
) != 0)
1514 retval
= hash_insert (ppc_macro_hash
, macro
->name
, (void *) macro
);
1515 if (retval
!= (const char *) NULL
)
1517 as_bad (_("duplicate macro %s"), macro
->name
);
1527 /* This function is called when the assembler starts up. It is called
1528 after the options have been parsed and the output file has been
1536 ppc_cie_data_alignment
= ppc_obj64
? -8 : -4;
1539 /* Set the ELF flags if desired. */
1540 if (ppc_flags
&& !msolaris
)
1541 bfd_set_private_flags (stdoutput
, ppc_flags
);
1544 ppc_setup_opcodes ();
1546 /* Tell the main code what the endianness is if it is not overridden
1548 if (!set_target_endian
)
1550 set_target_endian
= 1;
1551 target_big_endian
= PPC_BIG_ENDIAN
;
1555 ppc_coff_debug_section
= coff_section_from_bfd_index (stdoutput
, N_DEBUG
);
1557 /* Create dummy symbols to serve as initial csects. This forces the
1558 text csects to precede the data csects. These symbols will not
1560 ppc_text_csects
= symbol_make ("dummy\001");
1561 symbol_get_tc (ppc_text_csects
)->within
= ppc_text_csects
;
1562 ppc_data_csects
= symbol_make ("dummy\001");
1563 symbol_get_tc (ppc_data_csects
)->within
= ppc_data_csects
;
1568 ppc_current_section
= text_section
;
1569 ppc_previous_section
= 0;
1578 if (ppc_apuinfo_list
== NULL
)
1581 /* Ok, so write the section info out. We have this layout:
1585 0 8 length of "APUinfo\0"
1586 4 (n*4) number of APU's (4 bytes each)
1589 20 APU#1 first APU's info
1590 24 APU#2 second APU's info
1595 asection
*seg
= now_seg
;
1596 subsegT subseg
= now_subseg
;
1597 asection
*apuinfo_secp
= (asection
*) NULL
;
1600 /* Create the .PPC.EMB.apuinfo section. */
1601 apuinfo_secp
= subseg_new (".PPC.EMB.apuinfo", 0);
1602 bfd_set_section_flags (stdoutput
,
1604 SEC_HAS_CONTENTS
| SEC_READONLY
);
1607 md_number_to_chars (p
, (valueT
) 8, 4);
1610 md_number_to_chars (p
, (valueT
) ppc_apuinfo_num
* 4, 4);
1613 md_number_to_chars (p
, (valueT
) 2, 4);
1616 strcpy (p
, "APUinfo");
1618 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
1621 md_number_to_chars (p
, (valueT
) ppc_apuinfo_list
[i
], 4);
1624 frag_align (2, 0, 0);
1626 /* We probably can't restore the current segment, for there likely
1629 subseg_set (seg
, subseg
);
1634 /* Insert an operand value into an instruction. */
1636 static unsigned long
1637 ppc_insert_operand (unsigned long insn
,
1638 const struct powerpc_operand
*operand
,
1644 long min
, max
, right
;
1646 max
= operand
->bitm
;
1650 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
1652 if ((operand
->flags
& PPC_OPERAND_SIGNOPT
) == 0)
1653 max
= (max
>> 1) & -right
;
1654 min
= ~max
& -right
;
1657 if ((operand
->flags
& PPC_OPERAND_PLUS1
) != 0)
1660 if ((operand
->flags
& PPC_OPERAND_NEGATIVE
) != 0)
1669 /* Some people write constants with the sign extension done by
1670 hand but only up to 32 bits. This shouldn't really be valid,
1671 but, to permit this code to assemble on a 64-bit host, we
1672 sign extend the 32-bit value to 64 bits if so doing makes the
1675 && (offsetT
) (val
- 0x80000000 - 0x80000000) >= min
1676 && (offsetT
) (val
- 0x80000000 - 0x80000000) <= max
1677 && ((val
- 0x80000000 - 0x80000000) & (right
- 1)) == 0)
1678 val
= val
- 0x80000000 - 0x80000000;
1680 /* Similarly, people write expressions like ~(1<<15), and expect
1681 this to be OK for a 32-bit unsigned value. */
1683 && (offsetT
) (val
+ 0x80000000 + 0x80000000) >= min
1684 && (offsetT
) (val
+ 0x80000000 + 0x80000000) <= max
1685 && ((val
+ 0x80000000 + 0x80000000) & (right
- 1)) == 0)
1686 val
= val
+ 0x80000000 + 0x80000000;
1690 || (val
& (right
- 1)) != 0)
1691 as_bad_value_out_of_range (_("operand"), val
, min
, max
, file
, line
);
1694 if (operand
->insert
)
1699 insn
= (*operand
->insert
) (insn
, (long) val
, cpu
, &errmsg
);
1700 if (errmsg
!= (const char *) NULL
)
1701 as_bad_where (file
, line
, "%s", errmsg
);
1704 insn
|= ((long) val
& operand
->bitm
) << operand
->shift
;
1711 /* Parse @got, etc. and return the desired relocation. */
1712 static bfd_reloc_code_real_type
1713 ppc_elf_suffix (char **str_p
, expressionS
*exp_p
)
1717 unsigned int length
: 8;
1718 unsigned int valid32
: 1;
1719 unsigned int valid64
: 1;
1728 const struct map_bfd
*ptr
;
1730 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1731 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1732 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1734 static const struct map_bfd mapping
[] = {
1735 MAP ("l", BFD_RELOC_LO16
),
1736 MAP ("h", BFD_RELOC_HI16
),
1737 MAP ("ha", BFD_RELOC_HI16_S
),
1738 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN
),
1739 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN
),
1740 MAP ("got", BFD_RELOC_16_GOTOFF
),
1741 MAP ("got@l", BFD_RELOC_LO16_GOTOFF
),
1742 MAP ("got@h", BFD_RELOC_HI16_GOTOFF
),
1743 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF
),
1744 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF
),
1745 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF
),
1746 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF
),
1747 MAP ("copy", BFD_RELOC_PPC_COPY
),
1748 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT
),
1749 MAP ("sectoff", BFD_RELOC_16_BASEREL
),
1750 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL
),
1751 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL
),
1752 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL
),
1753 MAP ("tls", BFD_RELOC_PPC_TLS
),
1754 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD
),
1755 MAP ("dtprel", BFD_RELOC_PPC_DTPREL
),
1756 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO
),
1757 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI
),
1758 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA
),
1759 MAP ("tprel", BFD_RELOC_PPC_TPREL
),
1760 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO
),
1761 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI
),
1762 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA
),
1763 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16
),
1764 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO
),
1765 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI
),
1766 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA
),
1767 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16
),
1768 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO
),
1769 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI
),
1770 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA
),
1771 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16
),
1772 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO
),
1773 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI
),
1774 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA
),
1775 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16
),
1776 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO
),
1777 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI
),
1778 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA
),
1779 MAP32 ("fixup", BFD_RELOC_CTOR
),
1780 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL
),
1781 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL
),
1782 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC
),
1783 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC
),
1784 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL
),
1785 MAP32 ("sdarel", BFD_RELOC_GPREL16
),
1786 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32
),
1787 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16
),
1788 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO
),
1789 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI
),
1790 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA
),
1791 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16
),
1792 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL
),
1793 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16
),
1794 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21
),
1795 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF
),
1796 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16
),
1797 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO
),
1798 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI
),
1799 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA
),
1800 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD
),
1801 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA
),
1802 MAP32 ("xgot", BFD_RELOC_PPC_TOC16
),
1803 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER
),
1804 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S
),
1805 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST
),
1806 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S
),
1807 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC
),
1808 MAP64 ("toc", BFD_RELOC_PPC_TOC16
),
1809 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO
),
1810 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI
),
1811 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA
),
1812 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER
),
1813 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA
),
1814 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST
),
1815 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA
),
1816 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER
),
1817 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA
),
1818 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST
),
1819 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA
),
1820 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED
}
1824 return BFD_RELOC_UNUSED
;
1826 for (ch
= *str
, str2
= ident
;
1827 (str2
< ident
+ sizeof (ident
) - 1
1828 && (ISALNUM (ch
) || ch
== '@'));
1831 *str2
++ = TOLOWER (ch
);
1838 for (ptr
= &mapping
[0]; ptr
->length
> 0; ptr
++)
1839 if (ch
== ptr
->string
[0]
1840 && len
== ptr
->length
1841 && memcmp (ident
, ptr
->string
, ptr
->length
) == 0
1842 && (ppc_obj64
? ptr
->valid64
: ptr
->valid32
))
1844 int reloc
= ptr
->reloc
;
1846 if (!ppc_obj64
&& exp_p
->X_add_number
!= 0)
1850 case BFD_RELOC_16_GOTOFF
:
1851 case BFD_RELOC_LO16_GOTOFF
:
1852 case BFD_RELOC_HI16_GOTOFF
:
1853 case BFD_RELOC_HI16_S_GOTOFF
:
1854 as_warn (_("identifier+constant@got means "
1855 "identifier@got+constant"));
1858 case BFD_RELOC_PPC_GOT_TLSGD16
:
1859 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
1860 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
1861 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
1862 case BFD_RELOC_PPC_GOT_TLSLD16
:
1863 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
1864 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
1865 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
1866 case BFD_RELOC_PPC_GOT_DTPREL16
:
1867 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
1868 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
1869 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
1870 case BFD_RELOC_PPC_GOT_TPREL16
:
1871 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
1872 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
1873 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
1874 as_bad (_("symbol+offset not supported for got tls"));
1879 /* Now check for identifier@suffix+constant. */
1880 if (*str
== '-' || *str
== '+')
1882 char *orig_line
= input_line_pointer
;
1883 expressionS new_exp
;
1885 input_line_pointer
= str
;
1886 expression (&new_exp
);
1887 if (new_exp
.X_op
== O_constant
)
1889 exp_p
->X_add_number
+= new_exp
.X_add_number
;
1890 str
= input_line_pointer
;
1893 if (&input_line_pointer
!= str_p
)
1894 input_line_pointer
= orig_line
;
1898 if (reloc
== (int) BFD_RELOC_PPC64_TOC
1899 && exp_p
->X_op
== O_symbol
1900 && strcmp (S_GET_NAME (exp_p
->X_add_symbol
), ".TOC.") == 0)
1902 /* Change the symbol so that the dummy .TOC. symbol can be
1903 omitted from the object file. */
1904 exp_p
->X_add_symbol
= &abs_symbol
;
1907 return (bfd_reloc_code_real_type
) reloc
;
1910 return BFD_RELOC_UNUSED
;
1913 /* Like normal .long/.short/.word, except support @got, etc.
1914 Clobbers input_line_pointer, checks end-of-line. */
1916 ppc_elf_cons (int nbytes
/* 1=.byte, 2=.word, 4=.long, 8=.llong */)
1919 bfd_reloc_code_real_type reloc
;
1921 if (is_it_end_of_statement ())
1923 demand_empty_rest_of_line ();
1930 if (exp
.X_op
== O_symbol
1931 && *input_line_pointer
== '@'
1932 && (reloc
= ppc_elf_suffix (&input_line_pointer
,
1933 &exp
)) != BFD_RELOC_UNUSED
)
1935 reloc_howto_type
*reloc_howto
;
1938 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, reloc
);
1939 size
= bfd_get_reloc_size (reloc_howto
);
1943 as_bad (_("%s relocations do not fit in %d bytes\n"),
1944 reloc_howto
->name
, nbytes
);
1951 p
= frag_more (nbytes
);
1952 memset (p
, 0, nbytes
);
1954 if (target_big_endian
)
1955 offset
= nbytes
- size
;
1956 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
+ offset
, size
,
1961 emit_expr (&exp
, (unsigned int) nbytes
);
1963 while (*input_line_pointer
++ == ',');
1965 /* Put terminator back into stream. */
1966 input_line_pointer
--;
1967 demand_empty_rest_of_line ();
1970 /* Solaris pseduo op to change to the .rodata section. */
1972 ppc_elf_rdata (int xxx
)
1974 char *save_line
= input_line_pointer
;
1975 static char section
[] = ".rodata\n";
1977 /* Just pretend this is .section .rodata */
1978 input_line_pointer
= section
;
1979 obj_elf_section (xxx
);
1981 input_line_pointer
= save_line
;
1984 /* Pseudo op to make file scope bss items. */
1986 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED
)
1999 name
= input_line_pointer
;
2000 c
= get_symbol_end ();
2002 /* just after name is now '\0'. */
2003 p
= input_line_pointer
;
2006 if (*input_line_pointer
!= ',')
2008 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
2009 ignore_rest_of_line ();
2013 input_line_pointer
++; /* skip ',' */
2014 if ((size
= get_absolute_expression ()) < 0)
2016 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
2017 ignore_rest_of_line ();
2021 /* The third argument to .lcomm is the alignment. */
2022 if (*input_line_pointer
!= ',')
2026 ++input_line_pointer
;
2027 align
= get_absolute_expression ();
2030 as_warn (_("ignoring bad alignment"));
2036 symbolP
= symbol_find_or_make (name
);
2039 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
2041 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
2042 S_GET_NAME (symbolP
));
2043 ignore_rest_of_line ();
2047 if (S_GET_VALUE (symbolP
) && S_GET_VALUE (symbolP
) != (valueT
) size
)
2049 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
2050 S_GET_NAME (symbolP
),
2051 (long) S_GET_VALUE (symbolP
),
2054 ignore_rest_of_line ();
2060 old_subsec
= now_subseg
;
2063 /* Convert to a power of 2 alignment. */
2064 for (align2
= 0; (align
& 1) == 0; align
>>= 1, ++align2
);
2067 as_bad (_("Common alignment not a power of 2"));
2068 ignore_rest_of_line ();
2075 record_alignment (bss_section
, align2
);
2076 subseg_set (bss_section
, 0);
2078 frag_align (align2
, 0, 0);
2079 if (S_GET_SEGMENT (symbolP
) == bss_section
)
2080 symbol_get_frag (symbolP
)->fr_symbol
= 0;
2081 symbol_set_frag (symbolP
, frag_now
);
2082 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
, size
,
2085 S_SET_SIZE (symbolP
, size
);
2086 S_SET_SEGMENT (symbolP
, bss_section
);
2087 subseg_set (old_sec
, old_subsec
);
2088 demand_empty_rest_of_line ();
2091 /* Validate any relocations emitted for -mrelocatable, possibly adding
2092 fixups for word relocations in writable segments, so we can adjust
2095 ppc_elf_validate_fix (fixS
*fixp
, segT seg
)
2097 if (fixp
->fx_done
|| fixp
->fx_pcrel
)
2106 case SHLIB_MRELOCATABLE
:
2107 if (fixp
->fx_r_type
<= BFD_RELOC_UNUSED
2108 && fixp
->fx_r_type
!= BFD_RELOC_16_GOTOFF
2109 && fixp
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
2110 && fixp
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
2111 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
2112 && fixp
->fx_r_type
!= BFD_RELOC_16_BASEREL
2113 && fixp
->fx_r_type
!= BFD_RELOC_LO16_BASEREL
2114 && fixp
->fx_r_type
!= BFD_RELOC_HI16_BASEREL
2115 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_BASEREL
2116 && (seg
->flags
& SEC_LOAD
) != 0
2117 && strcmp (segment_name (seg
), ".got2") != 0
2118 && strcmp (segment_name (seg
), ".dtors") != 0
2119 && strcmp (segment_name (seg
), ".ctors") != 0
2120 && strcmp (segment_name (seg
), ".fixup") != 0
2121 && strcmp (segment_name (seg
), ".gcc_except_table") != 0
2122 && strcmp (segment_name (seg
), ".eh_frame") != 0
2123 && strcmp (segment_name (seg
), ".ex_shared") != 0)
2125 if ((seg
->flags
& (SEC_READONLY
| SEC_CODE
)) != 0
2126 || fixp
->fx_r_type
!= BFD_RELOC_CTOR
)
2128 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
2129 _("Relocation cannot be done when using -mrelocatable"));
2136 /* Prevent elf_frob_file_before_adjust removing a weak undefined
2137 function descriptor sym if the corresponding code sym is used. */
2140 ppc_frob_file_before_adjust (void)
2148 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
2155 name
= S_GET_NAME (symp
);
2159 if (! S_IS_WEAK (symp
)
2160 || S_IS_DEFINED (symp
))
2163 len
= strlen (name
) + 1;
2164 dotname
= xmalloc (len
+ 1);
2166 memcpy (dotname
+ 1, name
, len
);
2167 dotsym
= symbol_find_noref (dotname
, 1);
2169 if (dotsym
!= NULL
&& (symbol_used_p (dotsym
)
2170 || symbol_used_in_reloc_p (dotsym
)))
2171 symbol_mark_used (symp
);
2175 toc
= bfd_get_section_by_name (stdoutput
, ".toc");
2177 && toc_reloc_types
!= has_large_toc_reloc
2178 && bfd_section_size (stdoutput
, toc
) > 0x10000)
2179 as_warn (_("TOC section size exceeds 64k"));
2181 /* Don't emit .TOC. symbol. */
2182 symp
= symbol_find (".TOC.");
2184 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
2186 #endif /* OBJ_ELF */
2191 * Summary of parse_toc_entry.
2193 * in: Input_line_pointer points to the '[' in one of:
2195 * [toc] [tocv] [toc32] [toc64]
2197 * Anything else is an error of one kind or another.
2200 * return value: success or failure
2201 * toc_kind: kind of toc reference
2202 * input_line_pointer:
2203 * success: first char after the ']'
2204 * failure: unchanged
2208 * [toc] - rv == success, toc_kind = default_toc
2209 * [tocv] - rv == success, toc_kind = data_in_toc
2210 * [toc32] - rv == success, toc_kind = must_be_32
2211 * [toc64] - rv == success, toc_kind = must_be_64
2215 enum toc_size_qualifier
2217 default_toc
, /* The toc cell constructed should be the system default size */
2218 data_in_toc
, /* This is a direct reference to a toc cell */
2219 must_be_32
, /* The toc cell constructed must be 32 bits wide */
2220 must_be_64
/* The toc cell constructed must be 64 bits wide */
2224 parse_toc_entry (enum toc_size_qualifier
*toc_kind
)
2229 enum toc_size_qualifier t
;
2231 /* Save the input_line_pointer. */
2232 start
= input_line_pointer
;
2234 /* Skip over the '[' , and whitespace. */
2235 ++input_line_pointer
;
2238 /* Find the spelling of the operand. */
2239 toc_spec
= input_line_pointer
;
2240 c
= get_symbol_end ();
2242 if (strcmp (toc_spec
, "toc") == 0)
2246 else if (strcmp (toc_spec
, "tocv") == 0)
2250 else if (strcmp (toc_spec
, "toc32") == 0)
2254 else if (strcmp (toc_spec
, "toc64") == 0)
2260 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec
);
2261 *input_line_pointer
= c
;
2262 input_line_pointer
= start
;
2266 /* Now find the ']'. */
2267 *input_line_pointer
= c
;
2269 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2270 c
= *input_line_pointer
++; /* input_line_pointer->past char in c. */
2274 as_bad (_("syntax error: expected `]', found `%c'"), c
);
2275 input_line_pointer
= start
;
2286 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2288 ppc_apuinfo_section_add (unsigned int apu
, unsigned int version
)
2292 /* Check we don't already exist. */
2293 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
2294 if (ppc_apuinfo_list
[i
] == APUID (apu
, version
))
2297 if (ppc_apuinfo_num
== ppc_apuinfo_num_alloc
)
2299 if (ppc_apuinfo_num_alloc
== 0)
2301 ppc_apuinfo_num_alloc
= 4;
2302 ppc_apuinfo_list
= (unsigned long *)
2303 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2307 ppc_apuinfo_num_alloc
+= 4;
2308 ppc_apuinfo_list
= (unsigned long *) xrealloc (ppc_apuinfo_list
,
2309 sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2312 ppc_apuinfo_list
[ppc_apuinfo_num
++] = APUID (apu
, version
);
2318 /* We need to keep a list of fixups. We can't simply generate them as
2319 we go, because that would require us to first create the frag, and
2320 that would screw up references to ``.''. */
2326 bfd_reloc_code_real_type reloc
;
2329 #define MAX_INSN_FIXUPS (5)
2331 /* This routine is called for each instruction to be assembled. */
2334 md_assemble (char *str
)
2337 const struct powerpc_opcode
*opcode
;
2339 const unsigned char *opindex_ptr
;
2343 struct ppc_fixup fixups
[MAX_INSN_FIXUPS
];
2349 bfd_reloc_code_real_type reloc
;
2352 /* Get the opcode. */
2353 for (s
= str
; *s
!= '\0' && ! ISSPACE (*s
); s
++)
2358 /* Look up the opcode in the hash table. */
2359 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, str
);
2360 if (opcode
== (const struct powerpc_opcode
*) NULL
)
2362 const struct powerpc_macro
*macro
;
2364 macro
= (const struct powerpc_macro
*) hash_find (ppc_macro_hash
, str
);
2365 if (macro
== (const struct powerpc_macro
*) NULL
)
2366 as_bad (_("Unrecognized opcode: `%s'"), str
);
2368 ppc_macro (s
, macro
);
2373 insn
= opcode
->opcode
;
2376 while (ISSPACE (*str
))
2379 /* PowerPC operands are just expressions. The only real issue is
2380 that a few operand types are optional. All cases which might use
2381 an optional operand separate the operands only with commas (in some
2382 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2383 have optional operands). Most instructions with optional operands
2384 have only one. Those that have more than one optional operand can
2385 take either all their operands or none. So, before we start seriously
2386 parsing the operands, we check to see if we have optional operands,
2387 and if we do, we count the number of commas to see which operands
2388 have been omitted. */
2390 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2392 const struct powerpc_operand
*operand
;
2394 operand
= &powerpc_operands
[*opindex_ptr
];
2395 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0)
2397 unsigned int opcount
;
2398 unsigned int num_operands_expected
;
2400 /* There is an optional operand. Count the number of
2401 commas in the input line. */
2408 while ((s
= strchr (s
, ',')) != (char *) NULL
)
2415 /* Compute the number of expected operands.
2416 Do not count fake operands. */
2417 for (num_operands_expected
= 0, i
= 0; opcode
->operands
[i
]; i
++)
2418 if ((powerpc_operands
[opcode
->operands
[i
]].flags
& PPC_OPERAND_FAKE
) == 0)
2419 ++ num_operands_expected
;
2421 /* If there are fewer operands in the line then are called
2422 for by the instruction, we want to skip the optional
2424 if (opcount
< num_operands_expected
)
2431 /* Gather the operands. */
2435 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2437 const struct powerpc_operand
*operand
;
2443 if (next_opindex
== 0)
2444 operand
= &powerpc_operands
[*opindex_ptr
];
2447 operand
= &powerpc_operands
[next_opindex
];
2452 /* If this is a fake operand, then we do not expect anything
2454 if ((operand
->flags
& PPC_OPERAND_FAKE
) != 0)
2456 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2457 if (errmsg
!= (const char *) NULL
)
2458 as_bad ("%s", errmsg
);
2462 /* If this is an optional operand, and we are skipping it, just
2464 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0
2467 if (operand
->insert
)
2469 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2470 if (errmsg
!= (const char *) NULL
)
2471 as_bad ("%s", errmsg
);
2473 if ((operand
->flags
& PPC_OPERAND_NEXT
) != 0)
2474 next_opindex
= *opindex_ptr
+ 1;
2478 /* Gather the operand. */
2479 hold
= input_line_pointer
;
2480 input_line_pointer
= str
;
2483 if (*input_line_pointer
== '[')
2485 /* We are expecting something like the second argument here:
2487 * lwz r4,[toc].GS.0.static_int(rtoc)
2488 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2489 * The argument following the `]' must be a symbol name, and the
2490 * register must be the toc register: 'rtoc' or '2'
2492 * The effect is to 0 as the displacement field
2493 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2494 * the appropriate variation) reloc against it based on the symbol.
2495 * The linker will build the toc, and insert the resolved toc offset.
2498 * o The size of the toc entry is currently assumed to be
2499 * 32 bits. This should not be assumed to be a hard coded
2501 * o In an effort to cope with a change from 32 to 64 bits,
2502 * there are also toc entries that are specified to be
2503 * either 32 or 64 bits:
2504 * lwz r4,[toc32].GS.0.static_int(rtoc)
2505 * lwz r4,[toc64].GS.0.static_int(rtoc)
2506 * These demand toc entries of the specified size, and the
2507 * instruction probably requires it.
2511 enum toc_size_qualifier toc_kind
;
2512 bfd_reloc_code_real_type toc_reloc
;
2514 /* Go parse off the [tocXX] part. */
2515 valid_toc
= parse_toc_entry (&toc_kind
);
2519 /* Note: message has already been issued.
2520 FIXME: what sort of recovery should we do?
2521 demand_rest_of_line (); return; ? */
2524 /* Now get the symbol following the ']'. */
2530 /* In this case, we may not have seen the symbol yet,
2531 since it is allowed to appear on a .extern or .globl
2532 or just be a label in the .data section. */
2533 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2536 /* 1. The symbol must be defined and either in the toc
2537 section, or a global.
2538 2. The reloc generated must have the TOCDEFN flag set
2539 in upper bit mess of the reloc type.
2540 FIXME: It's a little confusing what the tocv
2541 qualifier can be used for. At the very least, I've
2542 seen three uses, only one of which I'm sure I can
2544 if (ex
.X_op
== O_symbol
)
2546 gas_assert (ex
.X_add_symbol
!= NULL
);
2547 if (symbol_get_bfdsym (ex
.X_add_symbol
)->section
2550 as_bad (_("[tocv] symbol is not a toc symbol"));
2554 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2557 /* FIXME: these next two specifically specify 32/64 bit
2558 toc entries. We don't support them today. Is this
2559 the right way to say that? */
2560 toc_reloc
= BFD_RELOC_UNUSED
;
2561 as_bad (_("Unimplemented toc32 expression modifier"));
2564 /* FIXME: see above. */
2565 toc_reloc
= BFD_RELOC_UNUSED
;
2566 as_bad (_("Unimplemented toc64 expression modifier"));
2570 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2576 /* We need to generate a fixup for this expression. */
2577 if (fc
>= MAX_INSN_FIXUPS
)
2578 as_fatal (_("too many fixups"));
2580 fixups
[fc
].reloc
= toc_reloc
;
2581 fixups
[fc
].exp
= ex
;
2582 fixups
[fc
].opindex
= *opindex_ptr
;
2585 /* Ok. We've set up the fixup for the instruction. Now make it
2586 look like the constant 0 was found here. */
2588 ex
.X_op
= O_constant
;
2589 ex
.X_add_number
= 0;
2590 ex
.X_add_symbol
= NULL
;
2591 ex
.X_op_symbol
= NULL
;
2597 if ((reg_names_p
&& (operand
->flags
& PPC_OPERAND_CR
) != 0)
2598 || !register_name (&ex
))
2600 char save_lex
= lex_type
['%'];
2602 if ((operand
->flags
& PPC_OPERAND_CR
) != 0)
2605 lex_type
['%'] |= LEX_BEGIN_NAME
;
2609 lex_type
['%'] = save_lex
;
2613 str
= input_line_pointer
;
2614 input_line_pointer
= hold
;
2616 if (ex
.X_op
== O_illegal
)
2617 as_bad (_("illegal operand"));
2618 else if (ex
.X_op
== O_absent
)
2619 as_bad (_("missing operand"));
2620 else if (ex
.X_op
== O_register
)
2622 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2623 ppc_cpu
, (char *) NULL
, 0);
2625 else if (ex
.X_op
== O_constant
)
2628 /* Allow @HA, @L, @H on constants. */
2629 char *orig_str
= str
;
2631 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2638 case BFD_RELOC_LO16
:
2639 /* X_unsigned is the default, so if the user has done
2640 something which cleared it, we always produce a
2642 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2643 ex
.X_add_number
&= 0xffff;
2645 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2648 case BFD_RELOC_HI16
:
2649 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2650 ex
.X_add_number
= PPC_HI (ex
.X_add_number
);
2652 ex
.X_add_number
= SEX16 (PPC_HI (ex
.X_add_number
));
2655 case BFD_RELOC_HI16_S
:
2656 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2657 ex
.X_add_number
= PPC_HA (ex
.X_add_number
);
2659 ex
.X_add_number
= SEX16 (PPC_HA (ex
.X_add_number
));
2662 case BFD_RELOC_PPC64_HIGHER
:
2663 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2664 ex
.X_add_number
= PPC_HIGHER (ex
.X_add_number
);
2666 ex
.X_add_number
= SEX16 (PPC_HIGHER (ex
.X_add_number
));
2669 case BFD_RELOC_PPC64_HIGHER_S
:
2670 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2671 ex
.X_add_number
= PPC_HIGHERA (ex
.X_add_number
);
2673 ex
.X_add_number
= SEX16 (PPC_HIGHERA (ex
.X_add_number
));
2676 case BFD_RELOC_PPC64_HIGHEST
:
2677 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2678 ex
.X_add_number
= PPC_HIGHEST (ex
.X_add_number
);
2680 ex
.X_add_number
= SEX16 (PPC_HIGHEST (ex
.X_add_number
));
2683 case BFD_RELOC_PPC64_HIGHEST_S
:
2684 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2685 ex
.X_add_number
= PPC_HIGHESTA (ex
.X_add_number
);
2687 ex
.X_add_number
= SEX16 (PPC_HIGHESTA (ex
.X_add_number
));
2690 #endif /* OBJ_ELF */
2691 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2692 ppc_cpu
, (char *) NULL
, 0);
2697 if (ex
.X_op
== O_symbol
&& str
[0] == '(')
2699 const char *sym_name
= S_GET_NAME (ex
.X_add_symbol
);
2700 if (sym_name
[0] == '.')
2703 if (strcasecmp (sym_name
, "__tls_get_addr") == 0)
2705 expressionS tls_exp
;
2707 hold
= input_line_pointer
;
2708 input_line_pointer
= str
+ 1;
2709 expression (&tls_exp
);
2710 if (tls_exp
.X_op
== O_symbol
)
2712 reloc
= BFD_RELOC_UNUSED
;
2713 if (strncasecmp (input_line_pointer
, "@tlsgd)", 7) == 0)
2715 reloc
= BFD_RELOC_PPC_TLSGD
;
2716 input_line_pointer
+= 7;
2718 else if (strncasecmp (input_line_pointer
, "@tlsld)", 7) == 0)
2720 reloc
= BFD_RELOC_PPC_TLSLD
;
2721 input_line_pointer
+= 7;
2723 if (reloc
!= BFD_RELOC_UNUSED
)
2726 str
= input_line_pointer
;
2728 if (fc
>= MAX_INSN_FIXUPS
)
2729 as_fatal (_("too many fixups"));
2730 fixups
[fc
].exp
= tls_exp
;
2731 fixups
[fc
].opindex
= *opindex_ptr
;
2732 fixups
[fc
].reloc
= reloc
;
2736 input_line_pointer
= hold
;
2740 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2742 /* Some TLS tweaks. */
2748 case BFD_RELOC_PPC_TLS
:
2749 if (!_bfd_elf_ppc_at_tls_transform (opcode
->opcode
, 0))
2750 as_bad (_("@tls may not be used with \"%s\" operands"),
2752 else if (operand
->shift
!= 11)
2753 as_bad (_("@tls may only be used in last operand"));
2755 insn
= ppc_insert_operand (insn
, operand
,
2757 ppc_cpu
, (char *) NULL
, 0);
2760 /* We'll only use the 32 (or 64) bit form of these relocations
2761 in constants. Instructions get the 16 bit form. */
2762 case BFD_RELOC_PPC_DTPREL
:
2763 reloc
= BFD_RELOC_PPC_DTPREL16
;
2765 case BFD_RELOC_PPC_TPREL
:
2766 reloc
= BFD_RELOC_PPC_TPREL16
;
2770 /* For the absolute forms of branches, convert the PC
2771 relative form back into the absolute. */
2772 if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0)
2776 case BFD_RELOC_PPC_B26
:
2777 reloc
= BFD_RELOC_PPC_BA26
;
2779 case BFD_RELOC_PPC_B16
:
2780 reloc
= BFD_RELOC_PPC_BA16
;
2782 case BFD_RELOC_PPC_B16_BRTAKEN
:
2783 reloc
= BFD_RELOC_PPC_BA16_BRTAKEN
;
2785 case BFD_RELOC_PPC_B16_BRNTAKEN
:
2786 reloc
= BFD_RELOC_PPC_BA16_BRNTAKEN
;
2795 case BFD_RELOC_PPC_TOC16
:
2796 toc_reloc_types
|= has_small_toc_reloc
;
2798 case BFD_RELOC_PPC64_TOC16_LO
:
2799 case BFD_RELOC_PPC64_TOC16_HI
:
2800 case BFD_RELOC_PPC64_TOC16_HA
:
2801 toc_reloc_types
|= has_large_toc_reloc
;
2808 && (operand
->flags
& (PPC_OPERAND_DS
| PPC_OPERAND_DQ
)) != 0)
2813 reloc
= BFD_RELOC_PPC64_ADDR16_DS
;
2815 case BFD_RELOC_LO16
:
2816 reloc
= BFD_RELOC_PPC64_ADDR16_LO_DS
;
2818 case BFD_RELOC_16_GOTOFF
:
2819 reloc
= BFD_RELOC_PPC64_GOT16_DS
;
2821 case BFD_RELOC_LO16_GOTOFF
:
2822 reloc
= BFD_RELOC_PPC64_GOT16_LO_DS
;
2824 case BFD_RELOC_LO16_PLTOFF
:
2825 reloc
= BFD_RELOC_PPC64_PLT16_LO_DS
;
2827 case BFD_RELOC_16_BASEREL
:
2828 reloc
= BFD_RELOC_PPC64_SECTOFF_DS
;
2830 case BFD_RELOC_LO16_BASEREL
:
2831 reloc
= BFD_RELOC_PPC64_SECTOFF_LO_DS
;
2833 case BFD_RELOC_PPC_TOC16
:
2834 reloc
= BFD_RELOC_PPC64_TOC16_DS
;
2836 case BFD_RELOC_PPC64_TOC16_LO
:
2837 reloc
= BFD_RELOC_PPC64_TOC16_LO_DS
;
2839 case BFD_RELOC_PPC64_PLTGOT16
:
2840 reloc
= BFD_RELOC_PPC64_PLTGOT16_DS
;
2842 case BFD_RELOC_PPC64_PLTGOT16_LO
:
2843 reloc
= BFD_RELOC_PPC64_PLTGOT16_LO_DS
;
2845 case BFD_RELOC_PPC_DTPREL16
:
2846 reloc
= BFD_RELOC_PPC64_DTPREL16_DS
;
2848 case BFD_RELOC_PPC_DTPREL16_LO
:
2849 reloc
= BFD_RELOC_PPC64_DTPREL16_LO_DS
;
2851 case BFD_RELOC_PPC_TPREL16
:
2852 reloc
= BFD_RELOC_PPC64_TPREL16_DS
;
2854 case BFD_RELOC_PPC_TPREL16_LO
:
2855 reloc
= BFD_RELOC_PPC64_TPREL16_LO_DS
;
2857 case BFD_RELOC_PPC_GOT_DTPREL16
:
2858 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
2859 case BFD_RELOC_PPC_GOT_TPREL16
:
2860 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
2863 as_bad (_("unsupported relocation for DS offset field"));
2869 /* We need to generate a fixup for this expression. */
2870 if (fc
>= MAX_INSN_FIXUPS
)
2871 as_fatal (_("too many fixups"));
2872 fixups
[fc
].exp
= ex
;
2873 fixups
[fc
].opindex
= *opindex_ptr
;
2874 fixups
[fc
].reloc
= reloc
;
2880 /* We need to generate a fixup for this expression. */
2881 if (fc
>= MAX_INSN_FIXUPS
)
2882 as_fatal (_("too many fixups"));
2883 fixups
[fc
].exp
= ex
;
2884 fixups
[fc
].opindex
= *opindex_ptr
;
2885 fixups
[fc
].reloc
= BFD_RELOC_UNUSED
;
2888 #endif /* OBJ_ELF */
2894 /* If expecting more operands, then we want to see "),". */
2895 if (*str
== endc
&& opindex_ptr
[1] != 0)
2899 while (ISSPACE (*str
));
2903 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0)
2911 /* The call to expression should have advanced str past any
2914 && (endc
!= ',' || *str
!= '\0'))
2916 as_bad (_("syntax error; found `%c' but expected `%c'"), *str
, endc
);
2924 while (ISSPACE (*str
))
2928 as_bad (_("junk at end of line: `%s'"), str
);
2931 /* Do we need/want a APUinfo section? */
2932 if ((ppc_cpu
& (PPC_OPCODE_E500
| PPC_OPCODE_E500MC
)) != 0)
2934 /* These are all version "1". */
2935 if (opcode
->flags
& PPC_OPCODE_SPE
)
2936 ppc_apuinfo_section_add (PPC_APUINFO_SPE
, 1);
2937 if (opcode
->flags
& PPC_OPCODE_ISEL
)
2938 ppc_apuinfo_section_add (PPC_APUINFO_ISEL
, 1);
2939 if (opcode
->flags
& PPC_OPCODE_EFS
)
2940 ppc_apuinfo_section_add (PPC_APUINFO_EFS
, 1);
2941 if (opcode
->flags
& PPC_OPCODE_BRLOCK
)
2942 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK
, 1);
2943 if (opcode
->flags
& PPC_OPCODE_PMR
)
2944 ppc_apuinfo_section_add (PPC_APUINFO_PMR
, 1);
2945 if (opcode
->flags
& PPC_OPCODE_CACHELCK
)
2946 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK
, 1);
2947 if (opcode
->flags
& PPC_OPCODE_RFMCI
)
2948 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI
, 1);
2952 /* Write out the instruction. */
2954 addr_mod
= frag_now_fix () & 3;
2955 if (frag_now
->has_code
&& frag_now
->insn_addr
!= addr_mod
)
2956 as_bad (_("instruction address is not a multiple of 4"));
2957 frag_now
->insn_addr
= addr_mod
;
2958 frag_now
->has_code
= 1;
2959 md_number_to_chars (f
, insn
, 4);
2962 dwarf2_emit_insn (4);
2965 /* Create any fixups. At this point we do not use a
2966 bfd_reloc_code_real_type, but instead just use the
2967 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2968 handle fixups for any operand type, although that is admittedly
2969 not a very exciting feature. We pick a BFD reloc type in
2971 for (i
= 0; i
< fc
; i
++)
2973 if (fixups
[i
].reloc
!= BFD_RELOC_UNUSED
)
2975 reloc_howto_type
*reloc_howto
;
2980 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
2984 size
= bfd_get_reloc_size (reloc_howto
);
2985 offset
= target_big_endian
? (4 - size
) : 0;
2987 if (size
< 1 || size
> 4)
2990 fixP
= fix_new_exp (frag_now
,
2991 f
- frag_now
->fr_literal
+ offset
,
2994 reloc_howto
->pc_relative
,
2997 /* Turn off complaints that the addend is too large for things like
2999 switch (fixups
[i
].reloc
)
3001 case BFD_RELOC_16_GOTOFF
:
3002 case BFD_RELOC_PPC_TOC16
:
3003 case BFD_RELOC_LO16
:
3004 case BFD_RELOC_HI16
:
3005 case BFD_RELOC_HI16_S
:
3007 case BFD_RELOC_PPC64_HIGHER
:
3008 case BFD_RELOC_PPC64_HIGHER_S
:
3009 case BFD_RELOC_PPC64_HIGHEST
:
3010 case BFD_RELOC_PPC64_HIGHEST_S
:
3012 fixP
->fx_no_overflow
= 1;
3020 const struct powerpc_operand
*operand
;
3022 operand
= &powerpc_operands
[fixups
[i
].opindex
];
3023 fix_new_exp (frag_now
,
3024 f
- frag_now
->fr_literal
,
3027 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
3028 ((bfd_reloc_code_real_type
)
3029 (fixups
[i
].opindex
+ (int) BFD_RELOC_UNUSED
)));
3034 /* Handle a macro. Gather all the operands, transform them as
3035 described by the macro, and call md_assemble recursively. All the
3036 operands are separated by commas; we don't accept parentheses
3037 around operands here. */
3040 ppc_macro (char *str
, const struct powerpc_macro
*macro
)
3051 /* Gather the users operands into the operands array. */
3056 if (count
>= sizeof operands
/ sizeof operands
[0])
3058 operands
[count
++] = s
;
3059 s
= strchr (s
, ',');
3060 if (s
== (char *) NULL
)
3065 if (count
!= macro
->operands
)
3067 as_bad (_("wrong number of operands"));
3071 /* Work out how large the string must be (the size is unbounded
3072 because it includes user input). */
3074 format
= macro
->format
;
3075 while (*format
!= '\0')
3084 arg
= strtol (format
+ 1, &send
, 10);
3085 know (send
!= format
&& arg
< count
);
3086 len
+= strlen (operands
[arg
]);
3091 /* Put the string together. */
3092 complete
= s
= (char *) alloca (len
+ 1);
3093 format
= macro
->format
;
3094 while (*format
!= '\0')
3100 arg
= strtol (format
+ 1, &send
, 10);
3101 strcpy (s
, operands
[arg
]);
3108 /* Assemble the constructed instruction. */
3109 md_assemble (complete
);
3113 /* For ELF, add support for SHT_ORDERED. */
3116 ppc_section_type (char *str
, size_t len
)
3118 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
3125 ppc_section_flags (flagword flags
, bfd_vma attr ATTRIBUTE_UNUSED
, int type
)
3127 if (type
== SHT_ORDERED
)
3128 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
3132 #endif /* OBJ_ELF */
3135 /* Pseudo-op handling. */
3137 /* The .byte pseudo-op. This is similar to the normal .byte
3138 pseudo-op, but it can also take a single ASCII string. */
3141 ppc_byte (int ignore ATTRIBUTE_UNUSED
)
3143 if (*input_line_pointer
!= '\"')
3149 /* Gather characters. A real double quote is doubled. Unusual
3150 characters are not permitted. */
3151 ++input_line_pointer
;
3156 c
= *input_line_pointer
++;
3160 if (*input_line_pointer
!= '\"')
3162 ++input_line_pointer
;
3165 FRAG_APPEND_1_CHAR (c
);
3168 demand_empty_rest_of_line ();
3173 /* XCOFF specific pseudo-op handling. */
3175 /* This is set if we are creating a .stabx symbol, since we don't want
3176 to handle symbol suffixes for such symbols. */
3177 static bfd_boolean ppc_stab_symbol
;
3179 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
3180 symbols in the .bss segment as though they were local common
3181 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3182 aligns .comm and .lcomm to 4 bytes. */
3185 ppc_comm (int lcomm
)
3187 asection
*current_seg
= now_seg
;
3188 subsegT current_subseg
= now_subseg
;
3194 symbolS
*lcomm_sym
= NULL
;
3198 name
= input_line_pointer
;
3199 endc
= get_symbol_end ();
3200 end_name
= input_line_pointer
;
3203 if (*input_line_pointer
!= ',')
3205 as_bad (_("missing size"));
3206 ignore_rest_of_line ();
3209 ++input_line_pointer
;
3211 size
= get_absolute_expression ();
3214 as_bad (_("negative size"));
3215 ignore_rest_of_line ();
3221 /* The third argument to .comm is the alignment. */
3222 if (*input_line_pointer
!= ',')
3226 ++input_line_pointer
;
3227 align
= get_absolute_expression ();
3230 as_warn (_("ignoring bad alignment"));
3245 /* The third argument to .lcomm appears to be the real local
3246 common symbol to create. References to the symbol named in
3247 the first argument are turned into references to the third
3249 if (*input_line_pointer
!= ',')
3251 as_bad (_("missing real symbol name"));
3252 ignore_rest_of_line ();
3255 ++input_line_pointer
;
3257 lcomm_name
= input_line_pointer
;
3258 lcomm_endc
= get_symbol_end ();
3260 lcomm_sym
= symbol_find_or_make (lcomm_name
);
3262 *input_line_pointer
= lcomm_endc
;
3266 sym
= symbol_find_or_make (name
);
3269 if (S_IS_DEFINED (sym
)
3270 || S_GET_VALUE (sym
) != 0)
3272 as_bad (_("attempt to redefine symbol"));
3273 ignore_rest_of_line ();
3277 record_alignment (bss_section
, align
);
3280 || ! S_IS_DEFINED (lcomm_sym
))
3289 S_SET_EXTERNAL (sym
);
3293 symbol_get_tc (lcomm_sym
)->output
= 1;
3294 def_sym
= lcomm_sym
;
3298 subseg_set (bss_section
, 1);
3299 frag_align (align
, 0, 0);
3301 symbol_set_frag (def_sym
, frag_now
);
3302 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
3303 def_size
, (char *) NULL
);
3305 S_SET_SEGMENT (def_sym
, bss_section
);
3306 symbol_get_tc (def_sym
)->align
= align
;
3310 /* Align the size of lcomm_sym. */
3311 symbol_get_frag (lcomm_sym
)->fr_offset
=
3312 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
3313 &~ ((1 << align
) - 1));
3314 if (align
> symbol_get_tc (lcomm_sym
)->align
)
3315 symbol_get_tc (lcomm_sym
)->align
= align
;
3320 /* Make sym an offset from lcomm_sym. */
3321 S_SET_SEGMENT (sym
, bss_section
);
3322 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
3323 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
3324 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
3327 subseg_set (current_seg
, current_subseg
);
3329 demand_empty_rest_of_line ();
3332 /* The .csect pseudo-op. This switches us into a different
3333 subsegment. The first argument is a symbol whose value is the
3334 start of the .csect. In COFF, csect symbols get special aux
3335 entries defined by the x_csect field of union internal_auxent. The
3336 optional second argument is the alignment (the default is 2). */
3339 ppc_csect (int ignore ATTRIBUTE_UNUSED
)
3346 name
= input_line_pointer
;
3347 endc
= get_symbol_end ();
3349 sym
= symbol_find_or_make (name
);
3351 *input_line_pointer
= endc
;
3353 if (S_GET_NAME (sym
)[0] == '\0')
3355 /* An unnamed csect is assumed to be [PR]. */
3356 symbol_get_tc (sym
)->symbol_class
= XMC_PR
;
3360 if (*input_line_pointer
== ',')
3362 ++input_line_pointer
;
3363 align
= get_absolute_expression ();
3366 ppc_change_csect (sym
, align
);
3368 demand_empty_rest_of_line ();
3371 /* Change to a different csect. */
3374 ppc_change_csect (symbolS
*sym
, offsetT align
)
3376 if (S_IS_DEFINED (sym
))
3377 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
3387 /* This is a new csect. We need to look at the symbol class to
3388 figure out whether it should go in the text section or the
3392 switch (symbol_get_tc (sym
)->symbol_class
)
3402 S_SET_SEGMENT (sym
, text_section
);
3403 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
3404 ++ppc_text_subsegment
;
3405 list_ptr
= &ppc_text_csects
;
3415 if (ppc_toc_csect
!= NULL
3416 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
3417 == ppc_data_subsegment
))
3419 S_SET_SEGMENT (sym
, data_section
);
3420 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
3421 ++ppc_data_subsegment
;
3422 list_ptr
= &ppc_data_csects
;
3428 /* We set the obstack chunk size to a small value before
3429 changing subsegments, so that we don't use a lot of memory
3430 space for what may be a small section. */
3431 hold_chunksize
= chunksize
;
3434 sec
= subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3435 symbol_get_tc (sym
)->subseg
);
3437 chunksize
= hold_chunksize
;
3440 ppc_after_toc_frag
= frag_now
;
3442 record_alignment (sec
, align
);
3444 frag_align_code (align
, 0);
3446 frag_align (align
, 0, 0);
3448 symbol_set_frag (sym
, frag_now
);
3449 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3451 symbol_get_tc (sym
)->align
= align
;
3452 symbol_get_tc (sym
)->output
= 1;
3453 symbol_get_tc (sym
)->within
= sym
;
3455 for (list
= *list_ptr
;
3456 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3457 list
= symbol_get_tc (list
)->next
)
3459 symbol_get_tc (list
)->next
= sym
;
3461 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3462 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3466 ppc_current_csect
= sym
;
3469 /* This function handles the .text and .data pseudo-ops. These
3470 pseudo-ops aren't really used by XCOFF; we implement them for the
3471 convenience of people who aren't used to XCOFF. */
3474 ppc_section (int type
)
3481 else if (type
== 'd')
3486 sym
= symbol_find_or_make (name
);
3488 ppc_change_csect (sym
, 2);
3490 demand_empty_rest_of_line ();
3493 /* This function handles the .section pseudo-op. This is mostly to
3494 give an error, since XCOFF only supports .text, .data and .bss, but
3495 we do permit the user to name the text or data section. */
3498 ppc_named_section (int ignore ATTRIBUTE_UNUSED
)
3501 const char *real_name
;
3505 user_name
= input_line_pointer
;
3506 c
= get_symbol_end ();
3508 if (strcmp (user_name
, ".text") == 0)
3509 real_name
= ".text[PR]";
3510 else if (strcmp (user_name
, ".data") == 0)
3511 real_name
= ".data[RW]";
3514 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3515 *input_line_pointer
= c
;
3516 ignore_rest_of_line ();
3520 *input_line_pointer
= c
;
3522 sym
= symbol_find_or_make (real_name
);
3524 ppc_change_csect (sym
, 2);
3526 demand_empty_rest_of_line ();
3529 /* The .extern pseudo-op. We create an undefined symbol. */
3532 ppc_extern (int ignore ATTRIBUTE_UNUSED
)
3537 name
= input_line_pointer
;
3538 endc
= get_symbol_end ();
3540 (void) symbol_find_or_make (name
);
3542 *input_line_pointer
= endc
;
3544 demand_empty_rest_of_line ();
3547 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3550 ppc_lglobl (int ignore ATTRIBUTE_UNUSED
)
3556 name
= input_line_pointer
;
3557 endc
= get_symbol_end ();
3559 sym
= symbol_find_or_make (name
);
3561 *input_line_pointer
= endc
;
3563 symbol_get_tc (sym
)->output
= 1;
3565 demand_empty_rest_of_line ();
3568 /* The .ref pseudo-op. It takes a list of symbol names and inserts R_REF
3569 relocations at the beginning of the current csect.
3571 (In principle, there's no reason why the relocations _have_ to be at
3572 the beginning. Anywhere in the csect would do. However, inserting
3573 at the beginning is what the native assmebler does, and it helps to
3574 deal with cases where the .ref statements follow the section contents.)
3576 ??? .refs don't work for empty .csects. However, the native assembler
3577 doesn't report an error in this case, and neither yet do we. */
3580 ppc_ref (int ignore ATTRIBUTE_UNUSED
)
3585 if (ppc_current_csect
== NULL
)
3587 as_bad (_(".ref outside .csect"));
3588 ignore_rest_of_line ();
3594 name
= input_line_pointer
;
3595 c
= get_symbol_end ();
3597 fix_at_start (symbol_get_frag (ppc_current_csect
), 0,
3598 symbol_find_or_make (name
), 0, FALSE
, BFD_RELOC_NONE
);
3600 *input_line_pointer
= c
;
3602 c
= *input_line_pointer
;
3605 input_line_pointer
++;
3607 if (is_end_of_line
[(unsigned char) *input_line_pointer
])
3609 as_bad (_("missing symbol name"));
3610 ignore_rest_of_line ();
3617 demand_empty_rest_of_line ();
3620 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3621 although I don't know why it bothers. */
3624 ppc_rename (int ignore ATTRIBUTE_UNUSED
)
3631 name
= input_line_pointer
;
3632 endc
= get_symbol_end ();
3634 sym
= symbol_find_or_make (name
);
3636 *input_line_pointer
= endc
;
3638 if (*input_line_pointer
!= ',')
3640 as_bad (_("missing rename string"));
3641 ignore_rest_of_line ();
3644 ++input_line_pointer
;
3646 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
3648 demand_empty_rest_of_line ();
3651 /* The .stabx pseudo-op. This is similar to a normal .stabs
3652 pseudo-op, but slightly different. A sample is
3653 .stabx "main:F-1",.main,142,0
3654 The first argument is the symbol name to create. The second is the
3655 value, and the third is the storage class. The fourth seems to be
3656 always zero, and I am assuming it is the type. */
3659 ppc_stabx (int ignore ATTRIBUTE_UNUSED
)
3666 name
= demand_copy_C_string (&len
);
3668 if (*input_line_pointer
!= ',')
3670 as_bad (_("missing value"));
3673 ++input_line_pointer
;
3675 ppc_stab_symbol
= TRUE
;
3676 sym
= symbol_make (name
);
3677 ppc_stab_symbol
= FALSE
;
3679 symbol_get_tc (sym
)->real_name
= name
;
3681 (void) expression (&exp
);
3688 as_bad (_("illegal .stabx expression; zero assumed"));
3689 exp
.X_add_number
= 0;
3692 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
3693 symbol_set_frag (sym
, &zero_address_frag
);
3697 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
3698 symbol_set_value_expression (sym
, &exp
);
3702 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
3703 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
3708 /* The value is some complex expression. This will probably
3709 fail at some later point, but this is probably the right
3710 thing to do here. */
3711 symbol_set_value_expression (sym
, &exp
);
3715 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3716 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3718 if (*input_line_pointer
!= ',')
3720 as_bad (_("missing class"));
3723 ++input_line_pointer
;
3725 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
3727 if (*input_line_pointer
!= ',')
3729 as_bad (_("missing type"));
3732 ++input_line_pointer
;
3734 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
3736 symbol_get_tc (sym
)->output
= 1;
3738 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
) {
3740 symbol_get_tc (sym
)->within
= ppc_current_block
;
3745 .stabx "z",arrays_,133,0
3748 .comm arrays_,13768,3
3750 resolve_symbol_value will copy the exp's "within" into sym's when the
3751 offset is 0. Since this seems to be corner case problem,
3752 only do the correction for storage class C_STSYM. A better solution
3753 would be to have the tc field updated in ppc_symbol_new_hook. */
3755 if (exp
.X_op
== O_symbol
)
3757 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
3761 if (exp
.X_op
!= O_symbol
3762 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
3763 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
3764 ppc_frob_label (sym
);
3767 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3768 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
3769 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
3770 symbol_get_tc (ppc_current_csect
)->within
= sym
;
3773 demand_empty_rest_of_line ();
3776 /* The .function pseudo-op. This takes several arguments. The first
3777 argument seems to be the external name of the symbol. The second
3778 argument seems to be the label for the start of the function. gcc
3779 uses the same name for both. I have no idea what the third and
3780 fourth arguments are meant to be. The optional fifth argument is
3781 an expression for the size of the function. In COFF this symbol
3782 gets an aux entry like that used for a csect. */
3785 ppc_function (int ignore ATTRIBUTE_UNUSED
)
3793 name
= input_line_pointer
;
3794 endc
= get_symbol_end ();
3796 /* Ignore any [PR] suffix. */
3797 name
= ppc_canonicalize_symbol_name (name
);
3798 s
= strchr (name
, '[');
3799 if (s
!= (char *) NULL
3800 && strcmp (s
+ 1, "PR]") == 0)
3803 ext_sym
= symbol_find_or_make (name
);
3805 *input_line_pointer
= endc
;
3807 if (*input_line_pointer
!= ',')
3809 as_bad (_("missing symbol name"));
3810 ignore_rest_of_line ();
3813 ++input_line_pointer
;
3815 name
= input_line_pointer
;
3816 endc
= get_symbol_end ();
3818 lab_sym
= symbol_find_or_make (name
);
3820 *input_line_pointer
= endc
;
3822 if (ext_sym
!= lab_sym
)
3826 exp
.X_op
= O_symbol
;
3827 exp
.X_add_symbol
= lab_sym
;
3828 exp
.X_op_symbol
= NULL
;
3829 exp
.X_add_number
= 0;
3831 symbol_set_value_expression (ext_sym
, &exp
);
3834 if (symbol_get_tc (ext_sym
)->symbol_class
== -1)
3835 symbol_get_tc (ext_sym
)->symbol_class
= XMC_PR
;
3836 symbol_get_tc (ext_sym
)->output
= 1;
3838 if (*input_line_pointer
== ',')
3842 /* Ignore the third argument. */
3843 ++input_line_pointer
;
3845 if (*input_line_pointer
== ',')
3847 /* Ignore the fourth argument. */
3848 ++input_line_pointer
;
3850 if (*input_line_pointer
== ',')
3852 /* The fifth argument is the function size. */
3853 ++input_line_pointer
;
3854 symbol_get_tc (ext_sym
)->size
= symbol_new ("L0\001",
3857 &zero_address_frag
);
3858 pseudo_set (symbol_get_tc (ext_sym
)->size
);
3863 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
3864 SF_SET_FUNCTION (ext_sym
);
3865 SF_SET_PROCESS (ext_sym
);
3866 coff_add_linesym (ext_sym
);
3868 demand_empty_rest_of_line ();
3871 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3872 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3873 with the correct line number */
3875 static symbolS
*saved_bi_sym
= 0;
3878 ppc_bf (int ignore ATTRIBUTE_UNUSED
)
3882 sym
= symbol_make (".bf");
3883 S_SET_SEGMENT (sym
, text_section
);
3884 symbol_set_frag (sym
, frag_now
);
3885 S_SET_VALUE (sym
, frag_now_fix ());
3886 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3888 coff_line_base
= get_absolute_expression ();
3890 S_SET_NUMBER_AUXILIARY (sym
, 1);
3891 SA_SET_SYM_LNNO (sym
, coff_line_base
);
3893 /* Line number for bi. */
3896 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
3901 symbol_get_tc (sym
)->output
= 1;
3903 ppc_frob_label (sym
);
3905 demand_empty_rest_of_line ();
3908 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3909 ".ef", except that the line number is absolute, not relative to the
3910 most recent ".bf" symbol. */
3913 ppc_ef (int ignore ATTRIBUTE_UNUSED
)
3917 sym
= symbol_make (".ef");
3918 S_SET_SEGMENT (sym
, text_section
);
3919 symbol_set_frag (sym
, frag_now
);
3920 S_SET_VALUE (sym
, frag_now_fix ());
3921 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3922 S_SET_NUMBER_AUXILIARY (sym
, 1);
3923 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3924 symbol_get_tc (sym
)->output
= 1;
3926 ppc_frob_label (sym
);
3928 demand_empty_rest_of_line ();
3931 /* The .bi and .ei pseudo-ops. These take a string argument and
3932 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3933 the symbol list. The value of .bi will be know when the next .bf
3939 static symbolS
*last_biei
;
3946 name
= demand_copy_C_string (&len
);
3948 /* The value of these symbols is actually file offset. Here we set
3949 the value to the index into the line number entries. In
3950 ppc_frob_symbols we set the fix_line field, which will cause BFD
3951 to do the right thing. */
3953 sym
= symbol_make (name
);
3954 /* obj-coff.c currently only handles line numbers correctly in the
3956 S_SET_SEGMENT (sym
, text_section
);
3957 S_SET_VALUE (sym
, coff_n_line_nos
);
3958 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3960 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
3961 symbol_get_tc (sym
)->output
= 1;
3969 for (look
= last_biei
? last_biei
: symbol_rootP
;
3970 (look
!= (symbolS
*) NULL
3971 && (S_GET_STORAGE_CLASS (look
) == C_FILE
3972 || S_GET_STORAGE_CLASS (look
) == C_BINCL
3973 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
3974 look
= symbol_next (look
))
3976 if (look
!= (symbolS
*) NULL
)
3978 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3979 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
3983 demand_empty_rest_of_line ();
3986 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3987 There is one argument, which is a csect symbol. The value of the
3988 .bs symbol is the index of this csect symbol. */
3991 ppc_bs (int ignore ATTRIBUTE_UNUSED
)
3998 if (ppc_current_block
!= NULL
)
3999 as_bad (_("nested .bs blocks"));
4001 name
= input_line_pointer
;
4002 endc
= get_symbol_end ();
4004 csect
= symbol_find_or_make (name
);
4006 *input_line_pointer
= endc
;
4008 sym
= symbol_make (".bs");
4009 S_SET_SEGMENT (sym
, now_seg
);
4010 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
4011 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4012 symbol_get_tc (sym
)->output
= 1;
4014 symbol_get_tc (sym
)->within
= csect
;
4016 ppc_frob_label (sym
);
4018 ppc_current_block
= sym
;
4020 demand_empty_rest_of_line ();
4023 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
4026 ppc_es (int ignore ATTRIBUTE_UNUSED
)
4030 if (ppc_current_block
== NULL
)
4031 as_bad (_(".es without preceding .bs"));
4033 sym
= symbol_make (".es");
4034 S_SET_SEGMENT (sym
, now_seg
);
4035 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
4036 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4037 symbol_get_tc (sym
)->output
= 1;
4039 ppc_frob_label (sym
);
4041 ppc_current_block
= NULL
;
4043 demand_empty_rest_of_line ();
4046 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
4050 ppc_bb (int ignore ATTRIBUTE_UNUSED
)
4054 sym
= symbol_make (".bb");
4055 S_SET_SEGMENT (sym
, text_section
);
4056 symbol_set_frag (sym
, frag_now
);
4057 S_SET_VALUE (sym
, frag_now_fix ());
4058 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
4060 S_SET_NUMBER_AUXILIARY (sym
, 1);
4061 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
4063 symbol_get_tc (sym
)->output
= 1;
4065 SF_SET_PROCESS (sym
);
4067 ppc_frob_label (sym
);
4069 demand_empty_rest_of_line ();
4072 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
4076 ppc_eb (int ignore ATTRIBUTE_UNUSED
)
4080 sym
= symbol_make (".eb");
4081 S_SET_SEGMENT (sym
, text_section
);
4082 symbol_set_frag (sym
, frag_now
);
4083 S_SET_VALUE (sym
, frag_now_fix ());
4084 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
4085 S_SET_NUMBER_AUXILIARY (sym
, 1);
4086 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
4087 symbol_get_tc (sym
)->output
= 1;
4089 SF_SET_PROCESS (sym
);
4091 ppc_frob_label (sym
);
4093 demand_empty_rest_of_line ();
4096 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
4100 ppc_bc (int ignore ATTRIBUTE_UNUSED
)
4106 name
= demand_copy_C_string (&len
);
4107 sym
= symbol_make (name
);
4108 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
4109 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4110 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
4111 S_SET_VALUE (sym
, 0);
4112 symbol_get_tc (sym
)->output
= 1;
4114 ppc_frob_label (sym
);
4116 demand_empty_rest_of_line ();
4119 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
4122 ppc_ec (int ignore ATTRIBUTE_UNUSED
)
4126 sym
= symbol_make (".ec");
4127 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
4128 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4129 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
4130 S_SET_VALUE (sym
, 0);
4131 symbol_get_tc (sym
)->output
= 1;
4133 ppc_frob_label (sym
);
4135 demand_empty_rest_of_line ();
4138 /* The .toc pseudo-op. Switch to the .toc subsegment. */
4141 ppc_toc (int ignore ATTRIBUTE_UNUSED
)
4143 if (ppc_toc_csect
!= (symbolS
*) NULL
)
4144 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
4151 subseg
= ppc_data_subsegment
;
4152 ++ppc_data_subsegment
;
4154 subseg_new (segment_name (data_section
), subseg
);
4155 ppc_toc_frag
= frag_now
;
4157 sym
= symbol_find_or_make ("TOC[TC0]");
4158 symbol_set_frag (sym
, frag_now
);
4159 S_SET_SEGMENT (sym
, data_section
);
4160 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
4161 symbol_get_tc (sym
)->subseg
= subseg
;
4162 symbol_get_tc (sym
)->output
= 1;
4163 symbol_get_tc (sym
)->within
= sym
;
4165 ppc_toc_csect
= sym
;
4167 for (list
= ppc_data_csects
;
4168 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
4169 list
= symbol_get_tc (list
)->next
)
4171 symbol_get_tc (list
)->next
= sym
;
4173 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4174 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
4178 ppc_current_csect
= ppc_toc_csect
;
4180 demand_empty_rest_of_line ();
4183 /* The AIX assembler automatically aligns the operands of a .long or
4184 .short pseudo-op, and we want to be compatible. */
4187 ppc_xcoff_cons (int log_size
)
4189 frag_align (log_size
, 0, 0);
4190 record_alignment (now_seg
, log_size
);
4191 cons (1 << log_size
);
4195 ppc_vbyte (int dummy ATTRIBUTE_UNUSED
)
4200 (void) expression (&exp
);
4202 if (exp
.X_op
!= O_constant
)
4204 as_bad (_("non-constant byte count"));
4208 byte_count
= exp
.X_add_number
;
4210 if (*input_line_pointer
!= ',')
4212 as_bad (_("missing value"));
4216 ++input_line_pointer
;
4220 #endif /* OBJ_XCOFF */
4221 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
4223 /* The .tc pseudo-op. This is used when generating either XCOFF or
4224 ELF. This takes two or more arguments.
4226 When generating XCOFF output, the first argument is the name to
4227 give to this location in the toc; this will be a symbol with class
4228 TC. The rest of the arguments are N-byte values to actually put at
4229 this location in the TOC; often there is just one more argument, a
4230 relocatable symbol reference. The size of the value to store
4231 depends on target word size. A 32-bit target uses 4-byte values, a
4232 64-bit target uses 8-byte values.
4234 When not generating XCOFF output, the arguments are the same, but
4235 the first argument is simply ignored. */
4238 ppc_tc (int ignore ATTRIBUTE_UNUSED
)
4242 /* Define the TOC symbol name. */
4248 if (ppc_toc_csect
== (symbolS
*) NULL
4249 || ppc_toc_csect
!= ppc_current_csect
)
4251 as_bad (_(".tc not in .toc section"));
4252 ignore_rest_of_line ();
4256 name
= input_line_pointer
;
4257 endc
= get_symbol_end ();
4259 sym
= symbol_find_or_make (name
);
4261 *input_line_pointer
= endc
;
4263 if (S_IS_DEFINED (sym
))
4267 label
= symbol_get_tc (ppc_current_csect
)->within
;
4268 if (symbol_get_tc (label
)->symbol_class
!= XMC_TC0
)
4270 as_bad (_(".tc with no label"));
4271 ignore_rest_of_line ();
4275 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
4276 symbol_set_frag (label
, symbol_get_frag (sym
));
4277 S_SET_VALUE (label
, S_GET_VALUE (sym
));
4279 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
4280 ++input_line_pointer
;
4285 S_SET_SEGMENT (sym
, now_seg
);
4286 symbol_set_frag (sym
, frag_now
);
4287 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
4288 symbol_get_tc (sym
)->symbol_class
= XMC_TC
;
4289 symbol_get_tc (sym
)->output
= 1;
4291 ppc_frob_label (sym
);
4294 #endif /* OBJ_XCOFF */
4298 /* Skip the TOC symbol name. */
4299 while (is_part_of_name (*input_line_pointer
)
4300 || *input_line_pointer
== ' '
4301 || *input_line_pointer
== '['
4302 || *input_line_pointer
== ']'
4303 || *input_line_pointer
== '{'
4304 || *input_line_pointer
== '}')
4305 ++input_line_pointer
;
4307 /* Align to a four/eight byte boundary. */
4308 align
= ppc_obj64
? 3 : 2;
4309 frag_align (align
, 0, 0);
4310 record_alignment (now_seg
, align
);
4311 #endif /* OBJ_ELF */
4313 if (*input_line_pointer
!= ',')
4314 demand_empty_rest_of_line ();
4317 ++input_line_pointer
;
4318 cons (ppc_obj64
? 8 : 4);
4322 /* Pseudo-op .machine. */
4325 ppc_machine (int ignore ATTRIBUTE_UNUSED
)
4328 #define MAX_HISTORY 100
4329 static ppc_cpu_t
*cpu_history
;
4330 static int curr_hist
;
4334 if (*input_line_pointer
== '"')
4337 cpu_string
= demand_copy_C_string (&len
);
4342 cpu_string
= input_line_pointer
;
4343 c
= get_symbol_end ();
4344 cpu_string
= xstrdup (cpu_string
);
4345 *input_line_pointer
= c
;
4348 if (cpu_string
!= NULL
)
4350 ppc_cpu_t old_cpu
= ppc_cpu
;
4354 for (p
= cpu_string
; *p
!= 0; p
++)
4357 if (strcmp (cpu_string
, "push") == 0)
4359 if (cpu_history
== NULL
)
4360 cpu_history
= xmalloc (MAX_HISTORY
* sizeof (*cpu_history
));
4362 if (curr_hist
>= MAX_HISTORY
)
4363 as_bad (_(".machine stack overflow"));
4365 cpu_history
[curr_hist
++] = ppc_cpu
;
4367 else if (strcmp (cpu_string
, "pop") == 0)
4370 as_bad (_(".machine stack underflow"));
4372 ppc_cpu
= cpu_history
[--curr_hist
];
4374 else if ((new_cpu
= ppc_parse_cpu (ppc_cpu
, cpu_string
)) != 0)
4377 as_bad (_("invalid machine `%s'"), cpu_string
);
4379 if (ppc_cpu
!= old_cpu
)
4380 ppc_setup_opcodes ();
4383 demand_empty_rest_of_line ();
4386 /* See whether a symbol is in the TOC section. */
4389 ppc_is_toc_sym (symbolS
*sym
)
4392 return symbol_get_tc (sym
)->symbol_class
== XMC_TC
;
4395 const char *sname
= segment_name (S_GET_SEGMENT (sym
));
4397 return strcmp (sname
, ".toc") == 0;
4399 return strcmp (sname
, ".got") == 0;
4402 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4406 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4408 /* Set the current section. */
4410 ppc_set_current_section (segT
new)
4412 ppc_previous_section
= ppc_current_section
;
4413 ppc_current_section
= new;
4416 /* pseudo-op: .previous
4417 behaviour: toggles the current section with the previous section.
4419 warnings: "No previous section" */
4422 ppc_previous (int ignore ATTRIBUTE_UNUSED
)
4426 if (ppc_previous_section
== NULL
)
4428 as_warn (_("No previous section to return to. Directive ignored."));
4432 subseg_set (ppc_previous_section
, 0);
4434 ppc_set_current_section (ppc_previous_section
);
4437 /* pseudo-op: .pdata
4438 behaviour: predefined read only data section
4442 initial: .section .pdata "adr3"
4443 a - don't know -- maybe a misprint
4444 d - initialized data
4446 3 - double word aligned (that would be 4 byte boundary)
4449 Tag index tables (also known as the function table) for exception
4450 handling, debugging, etc. */
4453 ppc_pdata (int ignore ATTRIBUTE_UNUSED
)
4455 if (pdata_section
== 0)
4457 pdata_section
= subseg_new (".pdata", 0);
4459 bfd_set_section_flags (stdoutput
, pdata_section
,
4460 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4461 | SEC_READONLY
| SEC_DATA
));
4463 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
4467 pdata_section
= subseg_new (".pdata", 0);
4469 ppc_set_current_section (pdata_section
);
4472 /* pseudo-op: .ydata
4473 behaviour: predefined read only data section
4477 initial: .section .ydata "drw3"
4478 a - don't know -- maybe a misprint
4479 d - initialized data
4481 3 - double word aligned (that would be 4 byte boundary)
4483 Tag tables (also known as the scope table) for exception handling,
4487 ppc_ydata (int ignore ATTRIBUTE_UNUSED
)
4489 if (ydata_section
== 0)
4491 ydata_section
= subseg_new (".ydata", 0);
4492 bfd_set_section_flags (stdoutput
, ydata_section
,
4493 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4494 | SEC_READONLY
| SEC_DATA
));
4496 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
4500 ydata_section
= subseg_new (".ydata", 0);
4502 ppc_set_current_section (ydata_section
);
4505 /* pseudo-op: .reldata
4506 behaviour: predefined read write data section
4507 double word aligned (4-byte)
4508 FIXME: relocation is applied to it
4509 FIXME: what's the difference between this and .data?
4512 initial: .section .reldata "drw3"
4513 d - initialized data
4516 3 - double word aligned (that would be 8 byte boundary)
4519 Like .data, but intended to hold data subject to relocation, such as
4520 function descriptors, etc. */
4523 ppc_reldata (int ignore ATTRIBUTE_UNUSED
)
4525 if (reldata_section
== 0)
4527 reldata_section
= subseg_new (".reldata", 0);
4529 bfd_set_section_flags (stdoutput
, reldata_section
,
4530 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4533 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
4537 reldata_section
= subseg_new (".reldata", 0);
4539 ppc_set_current_section (reldata_section
);
4542 /* pseudo-op: .rdata
4543 behaviour: predefined read only data section
4547 initial: .section .rdata "dr3"
4548 d - initialized data
4550 3 - double word aligned (that would be 4 byte boundary) */
4553 ppc_rdata (int ignore ATTRIBUTE_UNUSED
)
4555 if (rdata_section
== 0)
4557 rdata_section
= subseg_new (".rdata", 0);
4558 bfd_set_section_flags (stdoutput
, rdata_section
,
4559 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4560 | SEC_READONLY
| SEC_DATA
));
4562 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
4566 rdata_section
= subseg_new (".rdata", 0);
4568 ppc_set_current_section (rdata_section
);
4571 /* pseudo-op: .ualong
4572 behaviour: much like .int, with the exception that no alignment is
4574 FIXME: test the alignment statement
4579 ppc_ualong (int ignore ATTRIBUTE_UNUSED
)
4585 /* pseudo-op: .znop <symbol name>
4586 behaviour: Issue a nop instruction
4587 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4588 the supplied symbol name.
4590 warnings: Missing symbol name */
4593 ppc_znop (int ignore ATTRIBUTE_UNUSED
)
4596 const struct powerpc_opcode
*opcode
;
4607 /* Strip out the symbol name. */
4608 symbol_name
= input_line_pointer
;
4609 c
= get_symbol_end ();
4611 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
4612 strcpy (name
, symbol_name
);
4614 sym
= symbol_find_or_make (name
);
4616 *input_line_pointer
= c
;
4620 /* Look up the opcode in the hash table. */
4621 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
4623 /* Stick in the nop. */
4624 insn
= opcode
->opcode
;
4626 /* Write out the instruction. */
4628 md_number_to_chars (f
, insn
, 4);
4630 f
- frag_now
->fr_literal
,
4635 BFD_RELOC_16_GOT_PCREL
);
4645 ppc_pe_comm (int lcomm
)
4654 name
= input_line_pointer
;
4655 c
= get_symbol_end ();
4657 /* just after name is now '\0'. */
4658 p
= input_line_pointer
;
4661 if (*input_line_pointer
!= ',')
4663 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4664 ignore_rest_of_line ();
4668 input_line_pointer
++; /* skip ',' */
4669 if ((temp
= get_absolute_expression ()) < 0)
4671 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
4672 ignore_rest_of_line ();
4678 /* The third argument to .comm is the alignment. */
4679 if (*input_line_pointer
!= ',')
4683 ++input_line_pointer
;
4684 align
= get_absolute_expression ();
4687 as_warn (_("ignoring bad alignment"));
4694 symbolP
= symbol_find_or_make (name
);
4697 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
4699 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4700 S_GET_NAME (symbolP
));
4701 ignore_rest_of_line ();
4705 if (S_GET_VALUE (symbolP
))
4707 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
4708 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4709 S_GET_NAME (symbolP
),
4710 (long) S_GET_VALUE (symbolP
),
4715 S_SET_VALUE (symbolP
, (valueT
) temp
);
4716 S_SET_EXTERNAL (symbolP
);
4717 S_SET_SEGMENT (symbolP
, bfd_com_section_ptr
);
4720 demand_empty_rest_of_line ();
4724 * implement the .section pseudo op:
4725 * .section name {, "flags"}
4727 * | +--- optional flags: 'b' for bss
4729 * +-- section name 'l' for lib
4733 * 'd' (apparently m88k for data)
4735 * But if the argument is not a quoted string, treat it as a
4736 * subsegment number.
4738 * FIXME: this is a copy of the section processing from obj-coff.c, with
4739 * additions/changes for the moto-pas assembler support. There are three
4742 * FIXME: I just noticed this. This doesn't work at all really. It it
4743 * setting bits that bfd probably neither understands or uses. The
4744 * correct approach (?) will have to incorporate extra fields attached
4745 * to the section to hold the system specific stuff. (krk)
4748 * 'a' - unknown - referred to in documentation, but no definition supplied
4749 * 'c' - section has code
4750 * 'd' - section has initialized data
4751 * 'u' - section has uninitialized data
4752 * 'i' - section contains directives (info)
4753 * 'n' - section can be discarded
4754 * 'R' - remove section at link time
4756 * Section Protection:
4757 * 'r' - section is readable
4758 * 'w' - section is writeable
4759 * 'x' - section is executable
4760 * 's' - section is sharable
4762 * Section Alignment:
4763 * '0' - align to byte boundary
4764 * '1' - align to halfword undary
4765 * '2' - align to word boundary
4766 * '3' - align to doubleword boundary
4767 * '4' - align to quadword boundary
4768 * '5' - align to 32 byte boundary
4769 * '6' - align to 64 byte boundary
4774 ppc_pe_section (int ignore ATTRIBUTE_UNUSED
)
4776 /* Strip out the section name. */
4785 section_name
= input_line_pointer
;
4786 c
= get_symbol_end ();
4788 name
= xmalloc (input_line_pointer
- section_name
+ 1);
4789 strcpy (name
, section_name
);
4791 *input_line_pointer
= c
;
4796 flags
= SEC_NO_FLAGS
;
4798 if (strcmp (name
, ".idata$2") == 0)
4802 else if (strcmp (name
, ".idata$3") == 0)
4806 else if (strcmp (name
, ".idata$4") == 0)
4810 else if (strcmp (name
, ".idata$5") == 0)
4814 else if (strcmp (name
, ".idata$6") == 0)
4819 /* Default alignment to 16 byte boundary. */
4822 if (*input_line_pointer
== ',')
4824 ++input_line_pointer
;
4826 if (*input_line_pointer
!= '"')
4827 exp
= get_absolute_expression ();
4830 ++input_line_pointer
;
4831 while (*input_line_pointer
!= '"'
4832 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
4834 switch (*input_line_pointer
)
4836 /* Section Contents */
4837 case 'a': /* unknown */
4838 as_bad (_("Unsupported section attribute -- 'a'"));
4840 case 'c': /* code section */
4843 case 'd': /* section has initialized data */
4846 case 'u': /* section has uninitialized data */
4847 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4851 case 'i': /* section contains directives (info) */
4852 /* FIXME: This is IMAGE_SCN_LNK_INFO
4854 flags
|= SEC_HAS_CONTENTS
;
4856 case 'n': /* section can be discarded */
4859 case 'R': /* Remove section at link time */
4860 flags
|= SEC_NEVER_LOAD
;
4862 #if IFLICT_BRAIN_DAMAGE
4863 /* Section Protection */
4864 case 'r': /* section is readable */
4865 flags
|= IMAGE_SCN_MEM_READ
;
4867 case 'w': /* section is writeable */
4868 flags
|= IMAGE_SCN_MEM_WRITE
;
4870 case 'x': /* section is executable */
4871 flags
|= IMAGE_SCN_MEM_EXECUTE
;
4873 case 's': /* section is sharable */
4874 flags
|= IMAGE_SCN_MEM_SHARED
;
4877 /* Section Alignment */
4878 case '0': /* align to byte boundary */
4879 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
4882 case '1': /* align to halfword boundary */
4883 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
4886 case '2': /* align to word boundary */
4887 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
4890 case '3': /* align to doubleword boundary */
4891 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
4894 case '4': /* align to quadword boundary */
4895 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
4898 case '5': /* align to 32 byte boundary */
4899 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
4902 case '6': /* align to 64 byte boundary */
4903 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
4908 as_bad (_("unknown section attribute '%c'"),
4909 *input_line_pointer
);
4912 ++input_line_pointer
;
4914 if (*input_line_pointer
== '"')
4915 ++input_line_pointer
;
4919 sec
= subseg_new (name
, (subsegT
) exp
);
4921 ppc_set_current_section (sec
);
4923 if (flags
!= SEC_NO_FLAGS
)
4925 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
4926 as_bad (_("error setting flags for \"%s\": %s"),
4927 bfd_section_name (stdoutput
, sec
),
4928 bfd_errmsg (bfd_get_error ()));
4931 bfd_set_section_alignment (stdoutput
, sec
, align
);
4935 ppc_pe_function (int ignore ATTRIBUTE_UNUSED
)
4941 name
= input_line_pointer
;
4942 endc
= get_symbol_end ();
4944 ext_sym
= symbol_find_or_make (name
);
4946 *input_line_pointer
= endc
;
4948 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4949 SF_SET_FUNCTION (ext_sym
);
4950 SF_SET_PROCESS (ext_sym
);
4951 coff_add_linesym (ext_sym
);
4953 demand_empty_rest_of_line ();
4957 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED
)
4959 if (tocdata_section
== 0)
4961 tocdata_section
= subseg_new (".tocd", 0);
4962 /* FIXME: section flags won't work. */
4963 bfd_set_section_flags (stdoutput
, tocdata_section
,
4964 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4965 | SEC_READONLY
| SEC_DATA
));
4967 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
4971 rdata_section
= subseg_new (".tocd", 0);
4974 ppc_set_current_section (tocdata_section
);
4976 demand_empty_rest_of_line ();
4979 /* Don't adjust TOC relocs to use the section symbol. */
4982 ppc_pe_fix_adjustable (fixS
*fix
)
4984 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
4991 /* XCOFF specific symbol and file handling. */
4993 /* Canonicalize the symbol name. We use the to force the suffix, if
4994 any, to use square brackets, and to be in upper case. */
4997 ppc_canonicalize_symbol_name (char *name
)
5001 if (ppc_stab_symbol
)
5004 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
5018 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
5021 if (*s
== '\0' || s
[1] != '\0')
5022 as_bad (_("bad symbol suffix"));
5030 /* Set the class of a symbol based on the suffix, if any. This is
5031 called whenever a new symbol is created. */
5034 ppc_symbol_new_hook (symbolS
*sym
)
5036 struct ppc_tc_sy
*tc
;
5039 tc
= symbol_get_tc (sym
);
5042 tc
->symbol_class
= -1;
5043 tc
->real_name
= NULL
;
5049 if (ppc_stab_symbol
)
5052 s
= strchr (S_GET_NAME (sym
), '[');
5053 if (s
== (const char *) NULL
)
5055 /* There is no suffix. */
5064 if (strcmp (s
, "BS]") == 0)
5065 tc
->symbol_class
= XMC_BS
;
5068 if (strcmp (s
, "DB]") == 0)
5069 tc
->symbol_class
= XMC_DB
;
5070 else if (strcmp (s
, "DS]") == 0)
5071 tc
->symbol_class
= XMC_DS
;
5074 if (strcmp (s
, "GL]") == 0)
5075 tc
->symbol_class
= XMC_GL
;
5078 if (strcmp (s
, "PR]") == 0)
5079 tc
->symbol_class
= XMC_PR
;
5082 if (strcmp (s
, "RO]") == 0)
5083 tc
->symbol_class
= XMC_RO
;
5084 else if (strcmp (s
, "RW]") == 0)
5085 tc
->symbol_class
= XMC_RW
;
5088 if (strcmp (s
, "SV]") == 0)
5089 tc
->symbol_class
= XMC_SV
;
5092 if (strcmp (s
, "TC]") == 0)
5093 tc
->symbol_class
= XMC_TC
;
5094 else if (strcmp (s
, "TI]") == 0)
5095 tc
->symbol_class
= XMC_TI
;
5096 else if (strcmp (s
, "TB]") == 0)
5097 tc
->symbol_class
= XMC_TB
;
5098 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
5099 tc
->symbol_class
= XMC_TC0
;
5102 if (strcmp (s
, "UA]") == 0)
5103 tc
->symbol_class
= XMC_UA
;
5104 else if (strcmp (s
, "UC]") == 0)
5105 tc
->symbol_class
= XMC_UC
;
5108 if (strcmp (s
, "XO]") == 0)
5109 tc
->symbol_class
= XMC_XO
;
5113 if (tc
->symbol_class
== -1)
5114 as_bad (_("Unrecognized symbol suffix"));
5117 /* Set the class of a label based on where it is defined. This
5118 handles symbols without suffixes. Also, move the symbol so that it
5119 follows the csect symbol. */
5122 ppc_frob_label (symbolS
*sym
)
5124 if (ppc_current_csect
!= (symbolS
*) NULL
)
5126 if (symbol_get_tc (sym
)->symbol_class
== -1)
5127 symbol_get_tc (sym
)->symbol_class
= symbol_get_tc (ppc_current_csect
)->symbol_class
;
5129 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
5130 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
5131 &symbol_rootP
, &symbol_lastP
);
5132 symbol_get_tc (ppc_current_csect
)->within
= sym
;
5136 dwarf2_emit_label (sym
);
5140 /* This variable is set by ppc_frob_symbol if any absolute symbols are
5141 seen. It tells ppc_adjust_symtab whether it needs to look through
5144 static bfd_boolean ppc_saw_abs
;
5146 /* Change the name of a symbol just before writing it out. Set the
5147 real name if the .rename pseudo-op was used. Otherwise, remove any
5148 class suffix. Return 1 if the symbol should not be included in the
5152 ppc_frob_symbol (symbolS
*sym
)
5154 static symbolS
*ppc_last_function
;
5155 static symbolS
*set_end
;
5157 /* Discard symbols that should not be included in the output symbol
5159 if (! symbol_used_in_reloc_p (sym
)
5160 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
5161 || (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
5162 && ! symbol_get_tc (sym
)->output
5163 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
5166 /* This one will disappear anyway. Don't make a csect sym for it. */
5167 if (sym
== abs_section_sym
)
5170 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
5171 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
5177 name
= S_GET_NAME (sym
);
5178 s
= strchr (name
, '[');
5179 if (s
!= (char *) NULL
)
5185 snew
= xmalloc (len
+ 1);
5186 memcpy (snew
, name
, len
);
5189 S_SET_NAME (sym
, snew
);
5193 if (set_end
!= (symbolS
*) NULL
)
5195 SA_SET_SYM_ENDNDX (set_end
, sym
);
5199 if (SF_GET_FUNCTION (sym
))
5201 if (ppc_last_function
!= (symbolS
*) NULL
)
5202 as_bad (_("two .function pseudo-ops with no intervening .ef"));
5203 ppc_last_function
= sym
;
5204 if (symbol_get_tc (sym
)->size
!= (symbolS
*) NULL
)
5206 resolve_symbol_value (symbol_get_tc (sym
)->size
);
5207 SA_SET_SYM_FSIZE (sym
,
5208 (long) S_GET_VALUE (symbol_get_tc (sym
)->size
));
5211 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
5212 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
5214 if (ppc_last_function
== (symbolS
*) NULL
)
5215 as_bad (_(".ef with no preceding .function"));
5218 set_end
= ppc_last_function
;
5219 ppc_last_function
= NULL
;
5221 /* We don't have a C_EFCN symbol, but we need to force the
5222 COFF backend to believe that it has seen one. */
5223 coff_last_function
= NULL
;
5227 if (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
5228 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
5229 && S_GET_STORAGE_CLASS (sym
) != C_FILE
5230 && S_GET_STORAGE_CLASS (sym
) != C_FCN
5231 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
5232 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
5233 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
5234 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
5235 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
5236 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
5237 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
5239 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
5240 || S_GET_STORAGE_CLASS (sym
) == C_AIX_WEAKEXT
5241 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
5244 union internal_auxent
*a
;
5246 /* Create a csect aux. */
5247 i
= S_GET_NUMBER_AUXILIARY (sym
);
5248 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
5249 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
5250 if (symbol_get_tc (sym
)->symbol_class
== XMC_TC0
)
5252 /* This is the TOC table. */
5253 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
5254 a
->x_csect
.x_scnlen
.l
= 0;
5255 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5257 else if (symbol_get_tc (sym
)->subseg
!= 0)
5259 /* This is a csect symbol. x_scnlen is the size of the
5261 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
5262 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5263 S_GET_SEGMENT (sym
))
5264 - S_GET_VALUE (sym
));
5267 resolve_symbol_value (symbol_get_tc (sym
)->next
);
5268 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
5269 - S_GET_VALUE (sym
));
5271 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
5273 else if (S_GET_SEGMENT (sym
) == bss_section
)
5275 /* This is a common symbol. */
5276 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
5277 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
5278 if (S_IS_EXTERNAL (sym
))
5279 symbol_get_tc (sym
)->symbol_class
= XMC_RW
;
5281 symbol_get_tc (sym
)->symbol_class
= XMC_BS
;
5283 else if (S_GET_SEGMENT (sym
) == absolute_section
)
5285 /* This is an absolute symbol. The csect will be created by
5286 ppc_adjust_symtab. */
5288 a
->x_csect
.x_smtyp
= XTY_LD
;
5289 if (symbol_get_tc (sym
)->symbol_class
== -1)
5290 symbol_get_tc (sym
)->symbol_class
= XMC_XO
;
5292 else if (! S_IS_DEFINED (sym
))
5294 /* This is an external symbol. */
5295 a
->x_csect
.x_scnlen
.l
= 0;
5296 a
->x_csect
.x_smtyp
= XTY_ER
;
5298 else if (symbol_get_tc (sym
)->symbol_class
== XMC_TC
)
5302 /* This is a TOC definition. x_scnlen is the size of the
5304 next
= symbol_next (sym
);
5305 while (symbol_get_tc (next
)->symbol_class
== XMC_TC0
)
5306 next
= symbol_next (next
);
5307 if (next
== (symbolS
*) NULL
5308 || symbol_get_tc (next
)->symbol_class
!= XMC_TC
)
5310 if (ppc_after_toc_frag
== (fragS
*) NULL
)
5311 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5313 - S_GET_VALUE (sym
));
5315 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
5316 - S_GET_VALUE (sym
));
5320 resolve_symbol_value (next
);
5321 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
5322 - S_GET_VALUE (sym
));
5324 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5330 /* This is a normal symbol definition. x_scnlen is the
5331 symbol index of the containing csect. */
5332 if (S_GET_SEGMENT (sym
) == text_section
)
5333 csect
= ppc_text_csects
;
5334 else if (S_GET_SEGMENT (sym
) == data_section
)
5335 csect
= ppc_data_csects
;
5339 /* Skip the initial dummy symbol. */
5340 csect
= symbol_get_tc (csect
)->next
;
5342 if (csect
== (symbolS
*) NULL
)
5344 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
5345 a
->x_csect
.x_scnlen
.l
= 0;
5349 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
5351 resolve_symbol_value (symbol_get_tc (csect
)->next
);
5352 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
5353 > S_GET_VALUE (sym
))
5355 csect
= symbol_get_tc (csect
)->next
;
5358 a
->x_csect
.x_scnlen
.p
=
5359 coffsymbol (symbol_get_bfdsym (csect
))->native
;
5360 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
5363 a
->x_csect
.x_smtyp
= XTY_LD
;
5366 a
->x_csect
.x_parmhash
= 0;
5367 a
->x_csect
.x_snhash
= 0;
5368 if (symbol_get_tc (sym
)->symbol_class
== -1)
5369 a
->x_csect
.x_smclas
= XMC_PR
;
5371 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->symbol_class
;
5372 a
->x_csect
.x_stab
= 0;
5373 a
->x_csect
.x_snstab
= 0;
5375 /* Don't let the COFF backend resort these symbols. */
5376 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
5378 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
5380 /* We want the value to be the symbol index of the referenced
5381 csect symbol. BFD will do that for us if we set the right
5383 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
5384 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
5386 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
5387 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
5389 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
5394 /* The value is the offset from the enclosing csect. */
5395 block
= symbol_get_tc (sym
)->within
;
5396 csect
= symbol_get_tc (block
)->within
;
5397 resolve_symbol_value (csect
);
5398 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - S_GET_VALUE (csect
));
5400 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
5401 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
5403 /* We want the value to be a file offset into the line numbers.
5404 BFD will do that for us if we set the right flags. We have
5405 already set the value correctly. */
5406 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
5412 /* Adjust the symbol table. This creates csect symbols for all
5413 absolute symbols. */
5416 ppc_adjust_symtab (void)
5423 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
5427 union internal_auxent
*a
;
5429 if (S_GET_SEGMENT (sym
) != absolute_section
)
5432 csect
= symbol_create (".abs[XO]", absolute_section
,
5433 S_GET_VALUE (sym
), &zero_address_frag
);
5434 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
5435 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
5436 i
= S_GET_NUMBER_AUXILIARY (csect
);
5437 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
5438 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
5439 a
->x_csect
.x_scnlen
.l
= 0;
5440 a
->x_csect
.x_smtyp
= XTY_SD
;
5441 a
->x_csect
.x_parmhash
= 0;
5442 a
->x_csect
.x_snhash
= 0;
5443 a
->x_csect
.x_smclas
= XMC_XO
;
5444 a
->x_csect
.x_stab
= 0;
5445 a
->x_csect
.x_snstab
= 0;
5447 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
5449 i
= S_GET_NUMBER_AUXILIARY (sym
);
5450 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
5451 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
5452 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
5455 ppc_saw_abs
= FALSE
;
5458 /* Set the VMA for a section. This is called on all the sections in
5462 ppc_frob_section (asection
*sec
)
5464 static bfd_vma vma
= 0;
5466 vma
= md_section_align (sec
, vma
);
5467 bfd_set_section_vma (stdoutput
, sec
, vma
);
5468 vma
+= bfd_section_size (stdoutput
, sec
);
5471 #endif /* OBJ_XCOFF */
5474 md_atof (int type
, char *litp
, int *sizep
)
5476 return ieee_md_atof (type
, litp
, sizep
, target_big_endian
);
5479 /* Write a value out to the object file, using the appropriate
5483 md_number_to_chars (char *buf
, valueT val
, int n
)
5485 if (target_big_endian
)
5486 number_to_chars_bigendian (buf
, val
, n
);
5488 number_to_chars_littleendian (buf
, val
, n
);
5491 /* Align a section (I don't know why this is machine dependent). */
5494 md_section_align (asection
*seg ATTRIBUTE_UNUSED
, valueT addr
)
5499 int align
= bfd_get_section_alignment (stdoutput
, seg
);
5501 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
5505 /* We don't have any form of relaxing. */
5508 md_estimate_size_before_relax (fragS
*fragp ATTRIBUTE_UNUSED
,
5509 asection
*seg ATTRIBUTE_UNUSED
)
5515 /* Convert a machine dependent frag. We never generate these. */
5518 md_convert_frag (bfd
*abfd ATTRIBUTE_UNUSED
,
5519 asection
*sec ATTRIBUTE_UNUSED
,
5520 fragS
*fragp ATTRIBUTE_UNUSED
)
5525 /* We have no need to default values of symbols. */
5528 md_undefined_symbol (char *name ATTRIBUTE_UNUSED
)
5533 /* Functions concerning relocs. */
5535 /* The location from which a PC relative jump should be calculated,
5536 given a PC relative reloc. */
5539 md_pcrel_from_section (fixS
*fixp
, segT sec ATTRIBUTE_UNUSED
)
5541 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
5546 /* This is called to see whether a fixup should be adjusted to use a
5547 section symbol. We take the opportunity to change a fixup against
5548 a symbol in the TOC subsegment into a reloc against the
5549 corresponding .tc symbol. */
5552 ppc_fix_adjustable (fixS
*fix
)
5554 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
5555 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
5556 TC_SYMFIELD_TYPE
*tc
;
5558 if (symseg
== absolute_section
)
5561 if (ppc_toc_csect
!= (symbolS
*) NULL
5562 && fix
->fx_addsy
!= ppc_toc_csect
5563 && symseg
== data_section
5564 && val
>= ppc_toc_frag
->fr_address
5565 && (ppc_after_toc_frag
== (fragS
*) NULL
5566 || val
< ppc_after_toc_frag
->fr_address
))
5570 for (sy
= symbol_next (ppc_toc_csect
);
5571 sy
!= (symbolS
*) NULL
;
5572 sy
= symbol_next (sy
))
5574 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
5576 if (sy_tc
->symbol_class
== XMC_TC0
)
5578 if (sy_tc
->symbol_class
!= XMC_TC
)
5580 if (val
== resolve_symbol_value (sy
))
5583 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
5588 as_bad_where (fix
->fx_file
, fix
->fx_line
,
5589 _("symbol in .toc does not match any .tc"));
5592 /* Possibly adjust the reloc to be against the csect. */
5593 tc
= symbol_get_tc (fix
->fx_addsy
);
5595 && tc
->symbol_class
!= XMC_TC0
5596 && tc
->symbol_class
!= XMC_TC
5597 && symseg
!= bss_section
5598 /* Don't adjust if this is a reloc in the toc section. */
5599 && (symseg
!= data_section
5600 || ppc_toc_csect
== NULL
5601 || val
< ppc_toc_frag
->fr_address
5602 || (ppc_after_toc_frag
!= NULL
5603 && val
>= ppc_after_toc_frag
->fr_address
)))
5606 symbolS
*next_csect
;
5608 if (symseg
== text_section
)
5609 csect
= ppc_text_csects
;
5610 else if (symseg
== data_section
)
5611 csect
= ppc_data_csects
;
5615 /* Skip the initial dummy symbol. */
5616 csect
= symbol_get_tc (csect
)->next
;
5618 if (csect
!= (symbolS
*) NULL
)
5620 while ((next_csect
= symbol_get_tc (csect
)->next
) != (symbolS
*) NULL
5621 && (symbol_get_frag (next_csect
)->fr_address
<= val
))
5623 /* If the csect address equals the symbol value, then we
5624 have to look through the full symbol table to see
5625 whether this is the csect we want. Note that we will
5626 only get here if the csect has zero length. */
5627 if (symbol_get_frag (csect
)->fr_address
== val
5628 && S_GET_VALUE (csect
) == val
)
5632 for (scan
= symbol_next (csect
);
5634 scan
= symbol_next (scan
))
5636 if (symbol_get_tc (scan
)->subseg
!= 0)
5638 if (scan
== fix
->fx_addsy
)
5642 /* If we found the symbol before the next csect
5643 symbol, then this is the csect we want. */
5644 if (scan
== fix
->fx_addsy
)
5651 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
5652 fix
->fx_addsy
= csect
;
5657 /* Adjust a reloc against a .lcomm symbol to be against the base
5659 if (symseg
== bss_section
5660 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
5662 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
5664 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
5671 /* A reloc from one csect to another must be kept. The assembler
5672 will, of course, keep relocs between sections, and it will keep
5673 absolute relocs, but we need to force it to keep PC relative relocs
5674 between two csects in the same section. */
5677 ppc_force_relocation (fixS
*fix
)
5679 /* At this point fix->fx_addsy should already have been converted to
5680 a csect symbol. If the csect does not include the fragment, then
5681 we need to force the relocation. */
5683 && fix
->fx_addsy
!= NULL
5684 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
5685 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
5686 > fix
->fx_frag
->fr_address
)
5687 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
5688 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
5689 <= fix
->fx_frag
->fr_address
))))
5692 return generic_force_reloc (fix
);
5695 #endif /* OBJ_XCOFF */
5698 /* If this function returns non-zero, it guarantees that a relocation
5699 will be emitted for a fixup. */
5702 ppc_force_relocation (fixS
*fix
)
5704 /* Branch prediction relocations must force a relocation, as must
5705 the vtable description relocs. */
5706 switch (fix
->fx_r_type
)
5708 case BFD_RELOC_PPC_B16_BRTAKEN
:
5709 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5710 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5711 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5712 case BFD_RELOC_24_PLT_PCREL
:
5713 case BFD_RELOC_PPC64_TOC
:
5719 if (fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5720 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
5723 return generic_force_reloc (fix
);
5727 ppc_fix_adjustable (fixS
*fix
)
5729 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
5730 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
5731 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
5732 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
5733 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
5734 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
5735 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
5736 && !(fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5737 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
));
5741 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
5742 rs_align_code frag. */
5745 ppc_handle_align (struct frag
*fragP
)
5747 valueT count
= (fragP
->fr_next
->fr_address
5748 - (fragP
->fr_address
+ fragP
->fr_fix
));
5750 if (count
!= 0 && (count
& 3) == 0)
5752 char *dest
= fragP
->fr_literal
+ fragP
->fr_fix
;
5755 md_number_to_chars (dest
, 0x60000000, 4);
5757 if ((ppc_cpu
& PPC_OPCODE_POWER6
) != 0
5758 || (ppc_cpu
& PPC_OPCODE_POWER7
) != 0)
5760 /* For power6 and power7, we want the last nop to be a group
5761 terminating one. Do this by inserting an rs_fill frag immediately
5762 after this one, with its address set to the last nop location.
5763 This will automatically reduce the number of nops in the current
5767 struct frag
*group_nop
= xmalloc (SIZEOF_STRUCT_FRAG
+ 4);
5769 memcpy (group_nop
, fragP
, SIZEOF_STRUCT_FRAG
);
5770 group_nop
->fr_address
= group_nop
->fr_next
->fr_address
- 4;
5771 group_nop
->fr_fix
= 0;
5772 group_nop
->fr_offset
= 1;
5773 group_nop
->fr_type
= rs_fill
;
5774 fragP
->fr_next
= group_nop
;
5775 dest
= group_nop
->fr_literal
;
5778 if ((ppc_cpu
& PPC_OPCODE_POWER7
) != 0)
5779 /* power7 group terminating nop: "ori 2,2,0". */
5780 md_number_to_chars (dest
, 0x60420000, 4);
5782 /* power6 group terminating nop: "ori 1,1,0". */
5783 md_number_to_chars (dest
, 0x60210000, 4);
5788 /* Apply a fixup to the object code. This is called for all the
5789 fixups we generated by the call to fix_new_exp, above. In the call
5790 above we used a reloc code which was the largest legal reloc code
5791 plus the operand index. Here we undo that to recover the operand
5792 index. At this point all symbol values should be fully resolved,
5793 and we attempt to completely resolve the reloc. If we can not do
5794 that, we determine the correct reloc code and put it back in the
5798 md_apply_fix (fixS
*fixP
, valueT
*valP
, segT seg ATTRIBUTE_UNUSED
)
5800 valueT value
= * valP
;
5803 if (fixP
->fx_addsy
!= NULL
)
5805 /* Hack around bfd_install_relocation brain damage. */
5807 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
5812 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5813 the symbol values. If we are doing this relocation the code in
5814 write.c is going to call bfd_install_relocation, which is also
5815 going to use the symbol value. That means that if the reloc is
5816 fully resolved we want to use *valP since bfd_install_relocation is
5818 However, if the reloc is not fully resolved we do not want to
5819 use *valP, and must use fx_offset instead. If the relocation
5820 is PC-relative, we then need to re-apply md_pcrel_from_section
5821 to this new relocation value. */
5822 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
5827 value
= fixP
->fx_offset
;
5829 value
-= md_pcrel_from_section (fixP
, seg
);
5833 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
5835 /* We can't actually support subtracting a symbol. */
5836 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
5839 if ((int) fixP
->fx_r_type
>= (int) BFD_RELOC_UNUSED
)
5842 const struct powerpc_operand
*operand
;
5846 opindex
= (int) fixP
->fx_r_type
- (int) BFD_RELOC_UNUSED
;
5848 operand
= &powerpc_operands
[opindex
];
5851 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5852 does not generate a reloc. It uses the offset of `sym' within its
5853 csect. Other usages, such as `.long sym', generate relocs. This
5854 is the documented behaviour of non-TOC symbols. */
5855 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5856 && (operand
->bitm
& 0xfff0) == 0xfff0
5857 && operand
->shift
== 0
5858 && (operand
->insert
== NULL
|| ppc_obj64
)
5859 && fixP
->fx_addsy
!= NULL
5860 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
5861 && symbol_get_tc (fixP
->fx_addsy
)->symbol_class
!= XMC_TC
5862 && symbol_get_tc (fixP
->fx_addsy
)->symbol_class
!= XMC_TC0
5863 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
5865 value
= fixP
->fx_offset
;
5870 /* Fetch the instruction, insert the fully resolved operand
5871 value, and stuff the instruction back again. */
5872 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5873 if (target_big_endian
)
5874 insn
= bfd_getb32 ((unsigned char *) where
);
5876 insn
= bfd_getl32 ((unsigned char *) where
);
5877 insn
= ppc_insert_operand (insn
, operand
, (offsetT
) value
,
5878 fixP
->tc_fix_data
.ppc_cpu
,
5879 fixP
->fx_file
, fixP
->fx_line
);
5880 if (target_big_endian
)
5881 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5883 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5886 /* Nothing else to do here. */
5889 gas_assert (fixP
->fx_addsy
!= NULL
);
5891 /* Determine a BFD reloc value based on the operand information.
5892 We are only prepared to turn a few of the operands into
5894 if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5895 && operand
->bitm
== 0x3fffffc
5896 && operand
->shift
== 0)
5897 fixP
->fx_r_type
= BFD_RELOC_PPC_B26
;
5898 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5899 && operand
->bitm
== 0xfffc
5900 && operand
->shift
== 0)
5902 fixP
->fx_r_type
= BFD_RELOC_PPC_B16
;
5905 if (target_big_endian
)
5906 fixP
->fx_where
+= 2;
5909 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5910 && operand
->bitm
== 0x3fffffc
5911 && operand
->shift
== 0)
5912 fixP
->fx_r_type
= BFD_RELOC_PPC_BA26
;
5913 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5914 && operand
->bitm
== 0xfffc
5915 && operand
->shift
== 0)
5917 fixP
->fx_r_type
= BFD_RELOC_PPC_BA16
;
5920 if (target_big_endian
)
5921 fixP
->fx_where
+= 2;
5924 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5925 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5926 && (operand
->bitm
& 0xfff0) == 0xfff0
5927 && operand
->shift
== 0)
5929 if (ppc_is_toc_sym (fixP
->fx_addsy
))
5931 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
5934 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5935 fixP
->fx_r_type
= BFD_RELOC_PPC64_TOC16_DS
;
5940 fixP
->fx_r_type
= BFD_RELOC_16
;
5943 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5944 fixP
->fx_r_type
= BFD_RELOC_PPC64_ADDR16_DS
;
5948 if (target_big_endian
)
5949 fixP
->fx_where
+= 2;
5951 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5957 /* Use expr_symbol_where to see if this is an expression
5959 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
5960 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5961 _("unresolved expression that must be resolved"));
5963 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5964 _("unsupported relocation against %s"),
5965 S_GET_NAME (fixP
->fx_addsy
));
5973 ppc_elf_validate_fix (fixP
, seg
);
5975 switch (fixP
->fx_r_type
)
5977 case BFD_RELOC_CTOR
:
5984 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
5988 case BFD_RELOC_32_PCREL
:
5989 case BFD_RELOC_PPC_EMB_NADDR32
:
5990 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5997 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
6000 case BFD_RELOC_64_PCREL
:
6001 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6005 case BFD_RELOC_GPREL16
:
6006 case BFD_RELOC_16_GOT_PCREL
:
6007 case BFD_RELOC_16_GOTOFF
:
6008 case BFD_RELOC_LO16_GOTOFF
:
6009 case BFD_RELOC_HI16_GOTOFF
:
6010 case BFD_RELOC_HI16_S_GOTOFF
:
6011 case BFD_RELOC_16_BASEREL
:
6012 case BFD_RELOC_LO16_BASEREL
:
6013 case BFD_RELOC_HI16_BASEREL
:
6014 case BFD_RELOC_HI16_S_BASEREL
:
6015 case BFD_RELOC_PPC_EMB_NADDR16
:
6016 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
6017 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
6018 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
6019 case BFD_RELOC_PPC_EMB_SDAI16
:
6020 case BFD_RELOC_PPC_EMB_SDA2REL
:
6021 case BFD_RELOC_PPC_EMB_SDA2I16
:
6022 case BFD_RELOC_PPC_EMB_RELSEC16
:
6023 case BFD_RELOC_PPC_EMB_RELST_LO
:
6024 case BFD_RELOC_PPC_EMB_RELST_HI
:
6025 case BFD_RELOC_PPC_EMB_RELST_HA
:
6026 case BFD_RELOC_PPC_EMB_RELSDA
:
6027 case BFD_RELOC_PPC_TOC16
:
6029 case BFD_RELOC_PPC64_TOC16_LO
:
6030 case BFD_RELOC_PPC64_TOC16_HI
:
6031 case BFD_RELOC_PPC64_TOC16_HA
:
6035 if (fixP
->fx_addsy
!= NULL
)
6036 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6037 _("cannot emit PC relative %s relocation against %s"),
6038 bfd_get_reloc_code_name (fixP
->fx_r_type
),
6039 S_GET_NAME (fixP
->fx_addsy
));
6041 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6042 _("cannot emit PC relative %s relocation"),
6043 bfd_get_reloc_code_name (fixP
->fx_r_type
));
6046 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6052 fixP
->fx_r_type
= BFD_RELOC_16_PCREL
;
6055 case BFD_RELOC_16_PCREL
:
6056 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6060 case BFD_RELOC_LO16
:
6062 fixP
->fx_r_type
= BFD_RELOC_LO16_PCREL
;
6065 case BFD_RELOC_LO16_PCREL
:
6066 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6070 /* This case happens when you write, for example,
6072 where L1 and L2 are defined later. */
6073 case BFD_RELOC_HI16
:
6075 fixP
->fx_r_type
= BFD_RELOC_HI16_PCREL
;
6078 case BFD_RELOC_HI16_PCREL
:
6079 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6083 case BFD_RELOC_HI16_S
:
6085 fixP
->fx_r_type
= BFD_RELOC_HI16_S_PCREL
;
6088 case BFD_RELOC_HI16_S_PCREL
:
6089 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6094 case BFD_RELOC_NONE
:
6099 case BFD_RELOC_PPC64_HIGHER
:
6102 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6103 PPC_HIGHER (value
), 2);
6106 case BFD_RELOC_PPC64_HIGHER_S
:
6109 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6110 PPC_HIGHERA (value
), 2);
6113 case BFD_RELOC_PPC64_HIGHEST
:
6116 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6117 PPC_HIGHEST (value
), 2);
6120 case BFD_RELOC_PPC64_HIGHEST_S
:
6123 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6124 PPC_HIGHESTA (value
), 2);
6127 case BFD_RELOC_PPC64_ADDR16_DS
:
6128 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
6129 case BFD_RELOC_PPC64_GOT16_DS
:
6130 case BFD_RELOC_PPC64_GOT16_LO_DS
:
6131 case BFD_RELOC_PPC64_PLT16_LO_DS
:
6132 case BFD_RELOC_PPC64_SECTOFF_DS
:
6133 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
6134 case BFD_RELOC_PPC64_TOC16_DS
:
6135 case BFD_RELOC_PPC64_TOC16_LO_DS
:
6136 case BFD_RELOC_PPC64_PLTGOT16_DS
:
6137 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
6141 char *where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
6142 unsigned long val
, mask
;
6144 if (target_big_endian
)
6145 val
= bfd_getb32 (where
- 2);
6147 val
= bfd_getl32 (where
);
6149 /* lq insns reserve the four lsbs. */
6150 if ((ppc_cpu
& PPC_OPCODE_POWER4
) != 0
6151 && (val
& (0x3f << 26)) == (56u << 26))
6153 val
|= value
& mask
;
6154 if (target_big_endian
)
6155 bfd_putb16 ((bfd_vma
) val
, where
);
6157 bfd_putl16 ((bfd_vma
) val
, where
);
6161 case BFD_RELOC_PPC_B16_BRTAKEN
:
6162 case BFD_RELOC_PPC_B16_BRNTAKEN
:
6163 case BFD_RELOC_PPC_BA16_BRTAKEN
:
6164 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
6167 case BFD_RELOC_PPC_TLS
:
6168 case BFD_RELOC_PPC_TLSGD
:
6169 case BFD_RELOC_PPC_TLSLD
:
6172 case BFD_RELOC_PPC_DTPMOD
:
6173 case BFD_RELOC_PPC_TPREL16
:
6174 case BFD_RELOC_PPC_TPREL16_LO
:
6175 case BFD_RELOC_PPC_TPREL16_HI
:
6176 case BFD_RELOC_PPC_TPREL16_HA
:
6177 case BFD_RELOC_PPC_TPREL
:
6178 case BFD_RELOC_PPC_DTPREL16
:
6179 case BFD_RELOC_PPC_DTPREL16_LO
:
6180 case BFD_RELOC_PPC_DTPREL16_HI
:
6181 case BFD_RELOC_PPC_DTPREL16_HA
:
6182 case BFD_RELOC_PPC_DTPREL
:
6183 case BFD_RELOC_PPC_GOT_TLSGD16
:
6184 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
6185 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
6186 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
6187 case BFD_RELOC_PPC_GOT_TLSLD16
:
6188 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
6189 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
6190 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
6191 case BFD_RELOC_PPC_GOT_TPREL16
:
6192 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
6193 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
6194 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
6195 case BFD_RELOC_PPC_GOT_DTPREL16
:
6196 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
6197 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
6198 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
6199 case BFD_RELOC_PPC64_TPREL16_DS
:
6200 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
6201 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
6202 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
6203 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
6204 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
6205 case BFD_RELOC_PPC64_DTPREL16_DS
:
6206 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
6207 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
6208 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
6209 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
6210 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
6211 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
6214 /* Because SDA21 modifies the register field, the size is set to 4
6215 bytes, rather than 2, so offset it here appropriately. */
6216 case BFD_RELOC_PPC_EMB_SDA21
:
6220 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
6221 + ((target_big_endian
) ? 2 : 0),
6228 /* This can occur if there is a bug in the input assembler, eg:
6229 ".byte <undefined_symbol> - ." */
6231 as_bad (_("Unable to handle reference to symbol %s"),
6232 S_GET_NAME (fixP
->fx_addsy
));
6234 as_bad (_("Unable to resolve expression"));
6238 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6242 case BFD_RELOC_24_PLT_PCREL
:
6243 case BFD_RELOC_PPC_LOCAL24PC
:
6244 if (!fixP
->fx_pcrel
&& !fixP
->fx_done
)
6252 /* Fetch the instruction, insert the fully resolved operand
6253 value, and stuff the instruction back again. */
6254 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
6255 if (target_big_endian
)
6256 insn
= bfd_getb32 ((unsigned char *) where
);
6258 insn
= bfd_getl32 ((unsigned char *) where
);
6259 if ((value
& 3) != 0)
6260 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6261 _("must branch to an address a multiple of 4"));
6262 if ((offsetT
) value
< -0x40000000
6263 || (offsetT
) value
>= 0x40000000)
6264 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6265 _("@local or @plt branch destination is too far away, %ld bytes"),
6267 insn
= insn
| (value
& 0x03fffffc);
6268 if (target_big_endian
)
6269 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
6271 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
6275 case BFD_RELOC_VTABLE_INHERIT
:
6278 && !S_IS_DEFINED (fixP
->fx_addsy
)
6279 && !S_IS_WEAK (fixP
->fx_addsy
))
6280 S_SET_WEAK (fixP
->fx_addsy
);
6283 case BFD_RELOC_VTABLE_ENTRY
:
6288 /* Generated by reference to `sym@tocbase'. The sym is
6289 ignored by the linker. */
6290 case BFD_RELOC_PPC64_TOC
:
6296 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
6303 fixP
->fx_addnumber
= value
;
6305 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6306 from the section contents. If we are going to be emitting a reloc
6307 then the section contents are immaterial, so don't warn if they
6308 happen to overflow. Leave such warnings to ld. */
6310 fixP
->fx_no_overflow
= 1;
6312 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
6313 fixP
->fx_addnumber
= 0;
6317 fixP
->fx_addnumber
= 0;
6319 /* We want to use the offset within the toc, not the actual VMA
6321 fixP
->fx_addnumber
=
6322 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
))
6323 - S_GET_VALUE (ppc_toc_csect
);
6329 /* Generate a reloc for a fixup. */
6332 tc_gen_reloc (asection
*seg ATTRIBUTE_UNUSED
, fixS
*fixp
)
6336 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
6338 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
6339 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
6340 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6341 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
6342 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
6344 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
6345 _("reloc %d not supported by object file format"),
6346 (int) fixp
->fx_r_type
);
6349 reloc
->addend
= fixp
->fx_addnumber
;
6355 ppc_cfi_frame_initial_instructions (void)
6357 cfi_add_CFA_def_cfa (1, 0);
6361 tc_ppc_regname_to_dw2regnum (char *regname
)
6363 unsigned int regnum
= -1;
6367 static struct { char *name
; int dw2regnum
; } regnames
[] =
6369 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6370 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6371 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6372 { "spe_acc", 111 }, { "spefscr", 112 }
6375 for (i
= 0; i
< ARRAY_SIZE (regnames
); ++i
)
6376 if (strcmp (regnames
[i
].name
, regname
) == 0)
6377 return regnames
[i
].dw2regnum
;
6379 if (regname
[0] == 'r' || regname
[0] == 'f' || regname
[0] == 'v')
6381 p
= regname
+ 1 + (regname
[1] == '.');
6382 regnum
= strtoul (p
, &q
, 10);
6383 if (p
== q
|| *q
|| regnum
>= 32)
6385 if (regname
[0] == 'f')
6387 else if (regname
[0] == 'v')
6390 else if (regname
[0] == 'c' && regname
[1] == 'r')
6392 p
= regname
+ 2 + (regname
[2] == '.');
6393 if (p
[0] < '0' || p
[0] > '7' || p
[1])
6395 regnum
= p
[0] - '0' + 68;