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, 2011, 2012
4 Free Software Foundation, Inc.
5 Written by Ian Lance Taylor, Cygnus Support.
7 This file is part of GAS, the GNU Assembler.
9 GAS is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3, or (at your option)
14 GAS is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GAS; see the file COPYING. If not, write to the Free
21 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
25 #include "safe-ctype.h"
27 #include "dw2gencfi.h"
28 #include "opcode/ppc.h"
32 #include "dwarf2dbg.h"
40 #include "coff/xcoff.h"
44 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
46 /* Tell the main code what the endianness is. */
47 extern int target_big_endian
;
49 /* Whether or not, we've set target_big_endian. */
50 static int set_target_endian
= 0;
52 /* Whether to use user friendly register names. */
53 #ifndef TARGET_REG_NAMES_P
55 #define TARGET_REG_NAMES_P TRUE
57 #define TARGET_REG_NAMES_P FALSE
61 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
64 /* #lo(value) denotes the least significant 16 bits of the indicated. */
65 #define PPC_LO(v) ((v) & 0xffff)
67 /* Split the indicated value with the msbs in bits 11-15
68 and the lsbs in bits 21-31. */
69 #define PPC_VLE_SPLIT16A(v) ((v & 0xf800) << 11) | (v & 0x7ff)
71 /* Split the indicated value with the msbs in bits 6-10
72 and the lsbs in bits 21-31. */
73 #define PPC_VLE_SPLIT16D(v) ((v & 0xf800) << 5) | (v & 0x7ff)
75 /* #lo(value) denotes the lsb 16 bits in split16a format. */
76 #define PPC_VLE_LO16A(v) PPC_VLE_SPLIT16A(PPC_LO(v))
78 /* #lo(value) denotes the lsb 16 bits in split16d format. */
79 #define PPC_VLE_LO16D(v) PPC_VLE_SPLIT16D(PPC_LO(v))
81 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
82 #define PPC_HI(v) (((v) >> 16) & 0xffff)
84 /* #lo(value) denotes the msb 16 bits in split16a format. */
85 #define PPC_VLE_HI16A(v) PPC_VLE_SPLIT16A(PPC_HI(v))
87 /* #lo(value) denotes the msb 16 bits in split16d format. */
88 #define PPC_VLE_HI16D(v) PPC_VLE_SPLIT16D(PPC_HI(v))
90 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
91 the indicated value, compensating for #lo() being treated as a
93 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
95 /* #ha(value) denotes the high adjusted value in split16a format. */
96 #define PPC_VLE_HA16A(v) PPC_VLE_SPLIT16A(PPC_HA(v))
98 /* #ha(value) denotes the high adjusted value in split16d format. */
99 #define PPC_VLE_HA16D(v) PPC_VLE_SPLIT16D(PPC_HA(v))
101 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
102 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
104 /* #highera(value) denotes bits 32 through 47 of the indicated value,
105 compensating for #lo() being treated as a signed number. */
106 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
108 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
109 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
111 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
112 compensating for #lo being treated as a signed number. */
113 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
115 #define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000)
117 static bfd_boolean reg_names_p
= TARGET_REG_NAMES_P
;
119 static void ppc_macro (char *, const struct powerpc_macro
*);
120 static void ppc_byte (int);
122 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
123 static void ppc_tc (int);
124 static void ppc_machine (int);
128 static void ppc_comm (int);
129 static void ppc_bb (int);
130 static void ppc_bc (int);
131 static void ppc_bf (int);
132 static void ppc_biei (int);
133 static void ppc_bs (int);
134 static void ppc_eb (int);
135 static void ppc_ec (int);
136 static void ppc_ef (int);
137 static void ppc_es (int);
138 static void ppc_csect (int);
139 static void ppc_dwsect (int);
140 static void ppc_change_csect (symbolS
*, offsetT
);
141 static void ppc_function (int);
142 static void ppc_extern (int);
143 static void ppc_lglobl (int);
144 static void ppc_ref (int);
145 static void ppc_section (int);
146 static void ppc_named_section (int);
147 static void ppc_stabx (int);
148 static void ppc_rename (int);
149 static void ppc_toc (int);
150 static void ppc_xcoff_cons (int);
151 static void ppc_vbyte (int);
155 static void ppc_elf_cons (int);
156 static void ppc_elf_rdata (int);
157 static void ppc_elf_lcomm (int);
161 static void ppc_previous (int);
162 static void ppc_pdata (int);
163 static void ppc_ydata (int);
164 static void ppc_reldata (int);
165 static void ppc_rdata (int);
166 static void ppc_ualong (int);
167 static void ppc_znop (int);
168 static void ppc_pe_comm (int);
169 static void ppc_pe_section (int);
170 static void ppc_pe_function (int);
171 static void ppc_pe_tocd (int);
174 /* Generic assembler global variables which must be defined by all
178 /* This string holds the chars that always start a comment. If the
179 pre-processor is disabled, these aren't very useful. The macro
180 tc_comment_chars points to this. We use this, rather than the
181 usual comment_chars, so that we can switch for Solaris conventions. */
182 static const char ppc_solaris_comment_chars
[] = "#!";
183 static const char ppc_eabi_comment_chars
[] = "#";
185 #ifdef TARGET_SOLARIS_COMMENT
186 const char *ppc_comment_chars
= ppc_solaris_comment_chars
;
188 const char *ppc_comment_chars
= ppc_eabi_comment_chars
;
191 const char comment_chars
[] = "#";
194 /* Characters which start a comment at the beginning of a line. */
195 const char line_comment_chars
[] = "#";
197 /* Characters which may be used to separate multiple commands on a
199 const char line_separator_chars
[] = ";";
201 /* Characters which are used to indicate an exponent in a floating
203 const char EXP_CHARS
[] = "eE";
205 /* Characters which mean that a number is a floating point constant,
207 const char FLT_CHARS
[] = "dD";
209 /* Anything that can start an operand needs to be mentioned here,
210 to stop the input scrubber eating whitespace. */
211 const char ppc_symbol_chars
[] = "%[";
213 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
214 int ppc_cie_data_alignment
;
216 /* The dwarf2 minimum instruction length. */
217 int ppc_dwarf2_line_min_insn_length
;
219 /* More than this number of nops in an alignment op gets a branch
221 unsigned long nop_limit
= 4;
223 /* The type of processor we are assembling for. This is one or more
224 of the PPC_OPCODE flags defined in opcode/ppc.h. */
225 ppc_cpu_t ppc_cpu
= 0;
227 /* Flags set on encountering toc relocs. */
229 has_large_toc_reloc
= 1,
230 has_small_toc_reloc
= 2
233 /* The target specific pseudo-ops which we support. */
235 const pseudo_typeS md_pseudo_table
[] =
237 /* Pseudo-ops which must be overridden. */
238 { "byte", ppc_byte
, 0 },
241 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
242 legitimately belong in the obj-*.c file. However, XCOFF is based
243 on COFF, and is only implemented for the RS/6000. We just use
244 obj-coff.c, and add what we need here. */
245 { "comm", ppc_comm
, 0 },
246 { "lcomm", ppc_comm
, 1 },
250 { "bi", ppc_biei
, 0 },
252 { "csect", ppc_csect
, 0 },
253 { "dwsect", ppc_dwsect
, 0 },
254 { "data", ppc_section
, 'd' },
258 { "ei", ppc_biei
, 1 },
260 { "extern", ppc_extern
, 0 },
261 { "function", ppc_function
, 0 },
262 { "lglobl", ppc_lglobl
, 0 },
263 { "ref", ppc_ref
, 0 },
264 { "rename", ppc_rename
, 0 },
265 { "section", ppc_named_section
, 0 },
266 { "stabx", ppc_stabx
, 0 },
267 { "text", ppc_section
, 't' },
268 { "toc", ppc_toc
, 0 },
269 { "long", ppc_xcoff_cons
, 2 },
270 { "llong", ppc_xcoff_cons
, 3 },
271 { "word", ppc_xcoff_cons
, 1 },
272 { "short", ppc_xcoff_cons
, 1 },
273 { "vbyte", ppc_vbyte
, 0 },
277 { "llong", ppc_elf_cons
, 8 },
278 { "quad", ppc_elf_cons
, 8 },
279 { "long", ppc_elf_cons
, 4 },
280 { "word", ppc_elf_cons
, 2 },
281 { "short", ppc_elf_cons
, 2 },
282 { "rdata", ppc_elf_rdata
, 0 },
283 { "rodata", ppc_elf_rdata
, 0 },
284 { "lcomm", ppc_elf_lcomm
, 0 },
288 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
289 { "previous", ppc_previous
, 0 },
290 { "pdata", ppc_pdata
, 0 },
291 { "ydata", ppc_ydata
, 0 },
292 { "reldata", ppc_reldata
, 0 },
293 { "rdata", ppc_rdata
, 0 },
294 { "ualong", ppc_ualong
, 0 },
295 { "znop", ppc_znop
, 0 },
296 { "comm", ppc_pe_comm
, 0 },
297 { "lcomm", ppc_pe_comm
, 1 },
298 { "section", ppc_pe_section
, 0 },
299 { "function", ppc_pe_function
,0 },
300 { "tocd", ppc_pe_tocd
, 0 },
303 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
305 { "machine", ppc_machine
, 0 },
312 /* Predefined register names if -mregnames (or default for Windows NT).
313 In general, there are lots of them, in an attempt to be compatible
314 with a number of other Windows NT assemblers. */
316 /* Structure to hold information about predefined registers. */
323 /* List of registers that are pre-defined:
325 Each general register has predefined names of the form:
326 1. r<reg_num> which has the value <reg_num>.
327 2. r.<reg_num> which has the value <reg_num>.
329 Each floating point register has predefined names of the form:
330 1. f<reg_num> which has the value <reg_num>.
331 2. f.<reg_num> which has the value <reg_num>.
333 Each vector unit register has predefined names of the form:
334 1. v<reg_num> which has the value <reg_num>.
335 2. v.<reg_num> which has the value <reg_num>.
337 Each condition register has predefined names of the form:
338 1. cr<reg_num> which has the value <reg_num>.
339 2. cr.<reg_num> which has the value <reg_num>.
341 There are individual registers as well:
342 sp or r.sp has the value 1
343 rtoc or r.toc has the value 2
344 fpscr has the value 0
350 dsisr has the value 18
352 sdr1 has the value 25
353 srr0 has the value 26
354 srr1 has the value 27
356 The table is sorted. Suitable for searching by a binary search. */
358 static const struct pd_reg pre_defined_registers
[] =
360 { "cr.0", 0 }, /* Condition Registers */
380 { "dar", 19 }, /* Data Access Register */
381 { "dec", 22 }, /* Decrementer */
382 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
384 { "f.0", 0 }, /* Floating point registers */
411 { "f.32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
477 { "f32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
518 /* Quantization registers used with pair single instructions. */
536 { "lr", 8 }, /* Link Register */
540 { "r.0", 0 }, /* General Purpose Registers */
573 { "r.sp", 1 }, /* Stack Pointer */
575 { "r.toc", 2 }, /* Pointer to the table of contents */
577 { "r0", 0 }, /* More general purpose registers */
610 { "rtoc", 2 }, /* Table of contents */
612 { "sdr1", 25 }, /* Storage Description Register 1 */
616 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
617 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
619 { "v.0", 0 }, /* Vector (Altivec/VMX) registers */
685 { "vs.0", 0 }, /* Vector Scalar (VSX) registers (ISA 2.06). */
819 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
821 /* Given NAME, find the register number associated with that name, return
822 the integer value associated with the given name or -1 on failure. */
825 reg_name_search (const struct pd_reg
*regs
, int regcount
, const char *name
)
827 int middle
, low
, high
;
835 middle
= (low
+ high
) / 2;
836 cmp
= strcasecmp (name
, regs
[middle
].name
);
842 return regs
[middle
].value
;
850 * Summary of register_name.
852 * in: Input_line_pointer points to 1st char of operand.
854 * out: A expressionS.
855 * The operand may have been a register: in this case, X_op == O_register,
856 * X_add_number is set to the register number, and truth is returned.
857 * Input_line_pointer->(next non-blank) char after operand, or is in its
862 register_name (expressionS
*expressionP
)
869 /* Find the spelling of the operand. */
870 start
= name
= input_line_pointer
;
871 if (name
[0] == '%' && ISALPHA (name
[1]))
872 name
= ++input_line_pointer
;
874 else if (!reg_names_p
|| !ISALPHA (name
[0]))
877 c
= get_symbol_end ();
878 reg_number
= reg_name_search (pre_defined_registers
, REG_NAME_CNT
, name
);
880 /* Put back the delimiting char. */
881 *input_line_pointer
= c
;
883 /* Look to see if it's in the register table. */
886 expressionP
->X_op
= O_register
;
887 expressionP
->X_add_number
= reg_number
;
889 /* Make the rest nice. */
890 expressionP
->X_add_symbol
= NULL
;
891 expressionP
->X_op_symbol
= NULL
;
895 /* Reset the line as if we had not done anything. */
896 input_line_pointer
= start
;
900 /* This function is called for each symbol seen in an expression. It
901 handles the special parsing which PowerPC assemblers are supposed
902 to use for condition codes. */
904 /* Whether to do the special parsing. */
905 static bfd_boolean cr_operand
;
907 /* Names to recognize in a condition code. This table is sorted. */
908 static const struct pd_reg cr_names
[] =
925 /* Parsing function. This returns non-zero if it recognized an
929 ppc_parse_name (const char *name
, expressionS
*exp
)
938 val
= reg_name_search (cr_names
, sizeof cr_names
/ sizeof cr_names
[0],
943 exp
->X_op
= O_constant
;
944 exp
->X_add_number
= val
;
949 /* Local variables. */
951 /* Whether to target xcoff64/elf64. */
952 static unsigned int ppc_obj64
= BFD_DEFAULT_TARGET_SIZE
== 64;
954 /* Opcode hash table. */
955 static struct hash_control
*ppc_hash
;
957 /* Macro hash table. */
958 static struct hash_control
*ppc_macro_hash
;
961 /* What type of shared library support to use. */
962 static enum { SHLIB_NONE
, SHLIB_PIC
, SHLIB_MRELOCATABLE
} shlib
= SHLIB_NONE
;
964 /* Flags to set in the elf header. */
965 static flagword ppc_flags
= 0;
967 /* Whether this is Solaris or not. */
968 #ifdef TARGET_SOLARIS_COMMENT
969 #define SOLARIS_P TRUE
971 #define SOLARIS_P FALSE
974 static bfd_boolean msolaris
= SOLARIS_P
;
979 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
980 using a bunch of different sections. These assembler sections,
981 however, are all encompassed within the .text or .data sections of
982 the final output file. We handle this by using different
983 subsegments within these main segments. */
985 /* Next subsegment to allocate within the .text segment. */
986 static subsegT ppc_text_subsegment
= 2;
988 /* Linked list of csects in the text section. */
989 static symbolS
*ppc_text_csects
;
991 /* Next subsegment to allocate within the .data segment. */
992 static subsegT ppc_data_subsegment
= 2;
994 /* Linked list of csects in the data section. */
995 static symbolS
*ppc_data_csects
;
997 /* The current csect. */
998 static symbolS
*ppc_current_csect
;
1000 /* The RS/6000 assembler uses a TOC which holds addresses of functions
1001 and variables. Symbols are put in the TOC with the .tc pseudo-op.
1002 A special relocation is used when accessing TOC entries. We handle
1003 the TOC as a subsegment within the .data segment. We set it up if
1004 we see a .toc pseudo-op, and save the csect symbol here. */
1005 static symbolS
*ppc_toc_csect
;
1007 /* The first frag in the TOC subsegment. */
1008 static fragS
*ppc_toc_frag
;
1010 /* The first frag in the first subsegment after the TOC in the .data
1011 segment. NULL if there are no subsegments after the TOC. */
1012 static fragS
*ppc_after_toc_frag
;
1014 /* The current static block. */
1015 static symbolS
*ppc_current_block
;
1017 /* The COFF debugging section; set by md_begin. This is not the
1018 .debug section, but is instead the secret BFD section which will
1019 cause BFD to set the section number of a symbol to N_DEBUG. */
1020 static asection
*ppc_coff_debug_section
;
1022 /* Structure to set the length field of the dwarf sections. */
1023 struct dw_subsection
{
1024 /* Subsections are simply linked. */
1025 struct dw_subsection
*link
;
1027 /* The subsection number. */
1030 /* Expression to compute the length of the section. */
1031 expressionS end_exp
;
1034 static struct dw_section
{
1035 /* Corresponding section. */
1038 /* Simply linked list of subsections with a label. */
1039 struct dw_subsection
*list_subseg
;
1041 /* The anonymous subsection. */
1042 struct dw_subsection
*anon_subseg
;
1043 } dw_sections
[XCOFF_DWSECT_NBR_NAMES
];
1044 #endif /* OBJ_XCOFF */
1048 /* Various sections that we need for PE coff support. */
1049 static segT ydata_section
;
1050 static segT pdata_section
;
1051 static segT reldata_section
;
1052 static segT rdata_section
;
1053 static segT tocdata_section
;
1055 /* The current section and the previous section. See ppc_previous. */
1056 static segT ppc_previous_section
;
1057 static segT ppc_current_section
;
1062 symbolS
*GOT_symbol
; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
1063 #define PPC_APUINFO_ISEL 0x40
1064 #define PPC_APUINFO_PMR 0x41
1065 #define PPC_APUINFO_RFMCI 0x42
1066 #define PPC_APUINFO_CACHELCK 0x43
1067 #define PPC_APUINFO_SPE 0x100
1068 #define PPC_APUINFO_EFS 0x101
1069 #define PPC_APUINFO_BRLOCK 0x102
1070 #define PPC_APUINFO_VLE 0x104
1073 * We keep a list of APUinfo
1075 unsigned long *ppc_apuinfo_list
;
1076 unsigned int ppc_apuinfo_num
;
1077 unsigned int ppc_apuinfo_num_alloc
;
1078 #endif /* OBJ_ELF */
1081 const char *const md_shortopts
= "b:l:usm:K:VQ:";
1083 const char *const md_shortopts
= "um:";
1085 #define OPTION_NOPS (OPTION_MD_BASE + 0)
1086 const struct option md_longopts
[] = {
1087 {"nops", required_argument
, NULL
, OPTION_NOPS
},
1088 {NULL
, no_argument
, NULL
, 0}
1090 const size_t md_longopts_size
= sizeof (md_longopts
);
1092 /* Convert the target integer stored in N bytes in BUF to a host
1093 integer, returning that value. */
1096 md_chars_to_number (char *buf
, int n
)
1099 unsigned char *p
= (unsigned char *) buf
;
1101 if (target_big_endian
)
1106 result
|= (*p
++ & 0xff);
1114 result
|= (p
[n
] & 0xff);
1122 md_parse_option (int c
, char *arg
)
1129 /* -u means that any undefined symbols should be treated as
1130 external, which is the default for gas anyhow. */
1135 /* Solaris as takes -le (presumably for little endian). For completeness
1136 sake, recognize -be also. */
1137 if (strcmp (arg
, "e") == 0)
1139 target_big_endian
= 0;
1140 set_target_endian
= 1;
1141 if (ppc_cpu
& PPC_OPCODE_VLE
)
1142 as_bad (_("the use of -mvle requires big endian."));
1150 if (strcmp (arg
, "e") == 0)
1152 target_big_endian
= 1;
1153 set_target_endian
= 1;
1161 /* Recognize -K PIC. */
1162 if (strcmp (arg
, "PIC") == 0 || strcmp (arg
, "pic") == 0)
1165 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
1173 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
1175 if (strcmp (arg
, "64") == 0)
1179 if (ppc_cpu
& PPC_OPCODE_VLE
)
1180 as_bad (_("the use of -mvle requires -a32."));
1182 as_fatal (_("%s unsupported"), "-a64");
1185 else if (strcmp (arg
, "32") == 0)
1192 new_cpu
= ppc_parse_cpu (ppc_cpu
, arg
);
1196 if (strcmp (arg
, "vle") == 0)
1198 if (set_target_endian
&& target_big_endian
== 0)
1199 as_bad (_("the use of -mvle requires big endian."));
1201 as_bad (_("the use of -mvle requires -a32."));
1205 else if (strcmp (arg
, "regnames") == 0)
1208 else if (strcmp (arg
, "no-regnames") == 0)
1209 reg_names_p
= FALSE
;
1212 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1213 that require relocation. */
1214 else if (strcmp (arg
, "relocatable") == 0)
1216 shlib
= SHLIB_MRELOCATABLE
;
1217 ppc_flags
|= EF_PPC_RELOCATABLE
;
1220 else if (strcmp (arg
, "relocatable-lib") == 0)
1222 shlib
= SHLIB_MRELOCATABLE
;
1223 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
1226 /* -memb, set embedded bit. */
1227 else if (strcmp (arg
, "emb") == 0)
1228 ppc_flags
|= EF_PPC_EMB
;
1230 /* -mlittle/-mbig set the endianness. */
1231 else if (strcmp (arg
, "little") == 0
1232 || strcmp (arg
, "little-endian") == 0)
1234 target_big_endian
= 0;
1235 set_target_endian
= 1;
1236 if (ppc_cpu
& PPC_OPCODE_VLE
)
1237 as_bad (_("the use of -mvle requires big endian."));
1240 else if (strcmp (arg
, "big") == 0 || strcmp (arg
, "big-endian") == 0)
1242 target_big_endian
= 1;
1243 set_target_endian
= 1;
1246 else if (strcmp (arg
, "solaris") == 0)
1249 ppc_comment_chars
= ppc_solaris_comment_chars
;
1252 else if (strcmp (arg
, "no-solaris") == 0)
1255 ppc_comment_chars
= ppc_eabi_comment_chars
;
1260 as_bad (_("invalid switch -m%s"), arg
);
1266 /* -V: SVR4 argument to print version ID. */
1268 print_version_id ();
1271 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1272 should be emitted or not. FIXME: Not implemented. */
1276 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1277 rather than .stabs.excl, which is ignored by the linker.
1278 FIXME: Not implemented. */
1289 nop_limit
= strtoul (optarg
, &end
, 0);
1291 as_bad (_("--nops needs a numeric argument"));
1303 md_show_usage (FILE *stream
)
1305 fprintf (stream
, _("\
1307 -a32 generate ELF32/XCOFF32\n\
1308 -a64 generate ELF64/XCOFF64\n\
1310 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1311 -mpwr generate code for POWER (RIOS1)\n\
1312 -m601 generate code for PowerPC 601\n\
1313 -mppc, -mppc32, -m603, -m604\n\
1314 generate code for PowerPC 603/604\n\
1315 -m403 generate code for PowerPC 403\n\
1316 -m405 generate code for PowerPC 405\n\
1317 -m440 generate code for PowerPC 440\n\
1318 -m464 generate code for PowerPC 464\n\
1319 -m476 generate code for PowerPC 476\n\
1320 -m7400, -m7410, -m7450, -m7455\n\
1321 generate code for PowerPC 7400/7410/7450/7455\n\
1322 -m750cl generate code for PowerPC 750cl\n"));
1323 fprintf (stream
, _("\
1324 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1325 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1326 -mbooke generate code for 32-bit PowerPC BookE\n\
1327 -ma2 generate code for A2 architecture\n\
1328 -mpower4, -mpwr4 generate code for Power4 architecture\n\
1329 -mpower5, -mpwr5, -mpwr5x\n\
1330 generate code for Power5 architecture\n\
1331 -mpower6, -mpwr6 generate code for Power6 architecture\n\
1332 -mpower7, -mpwr7 generate code for Power7 architecture\n\
1333 -mcell generate code for Cell Broadband Engine architecture\n\
1334 -mcom generate code Power/PowerPC common instructions\n\
1335 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1336 fprintf (stream
, _("\
1337 -maltivec generate code for AltiVec\n\
1338 -mvsx generate code for Vector-Scalar (VSX) instructions\n\
1339 -me300 generate code for PowerPC e300 family\n\
1340 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1341 -me500mc, generate code for Freescale e500mc core complex\n\
1342 -me500mc64, generate code for Freescale e500mc64 core complex\n\
1343 -me5500, generate code for Freescale e5500 core complex\n\
1344 -me6500, generate code for Freescale e6500 core complex\n\
1345 -mspe generate code for Motorola SPE instructions\n\
1346 -mvle generate code for Freescale VLE instructions\n\
1347 -mtitan generate code for AppliedMicro Titan core complex\n\
1348 -mregnames Allow symbolic names for registers\n\
1349 -mno-regnames Do not allow symbolic names for registers\n"));
1351 fprintf (stream
, _("\
1352 -mrelocatable support for GCC's -mrelocatble option\n\
1353 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1354 -memb set PPC_EMB bit in ELF flags\n\
1355 -mlittle, -mlittle-endian, -le\n\
1356 generate code for a little endian machine\n\
1357 -mbig, -mbig-endian, -be\n\
1358 generate code for a big endian machine\n\
1359 -msolaris generate code for Solaris\n\
1360 -mno-solaris do not generate code for Solaris\n\
1361 -K PIC set EF_PPC_RELOCATABLE_LIB in ELF flags\n\
1362 -V print assembler version number\n\
1363 -Qy, -Qn ignored\n"));
1365 fprintf (stream
, _("\
1366 -nops=count when aligning, more than COUNT nops uses a branch\n"));
1369 /* Set ppc_cpu if it is not already set. */
1374 const char *default_os
= TARGET_OS
;
1375 const char *default_cpu
= TARGET_CPU
;
1377 if ((ppc_cpu
& ~(ppc_cpu_t
) PPC_OPCODE_ANY
) == 0)
1380 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_64
;
1381 else if (strncmp (default_os
, "aix", 3) == 0
1382 && default_os
[3] >= '4' && default_os
[3] <= '9')
1383 ppc_cpu
|= PPC_OPCODE_COMMON
;
1384 else if (strncmp (default_os
, "aix3", 4) == 0)
1385 ppc_cpu
|= PPC_OPCODE_POWER
;
1386 else if (strcmp (default_cpu
, "rs6000") == 0)
1387 ppc_cpu
|= PPC_OPCODE_POWER
;
1388 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1389 ppc_cpu
|= PPC_OPCODE_PPC
;
1391 as_fatal (_("unknown default cpu = %s, os = %s"),
1392 default_cpu
, default_os
);
1396 /* Figure out the BFD architecture to use. This function and ppc_mach
1397 are called well before md_begin, when the output file is opened. */
1399 enum bfd_architecture
1402 const char *default_cpu
= TARGET_CPU
;
1405 if ((ppc_cpu
& PPC_OPCODE_PPC
) != 0)
1406 return bfd_arch_powerpc
;
1407 if ((ppc_cpu
& PPC_OPCODE_VLE
) != 0)
1408 return bfd_arch_powerpc
;
1409 if ((ppc_cpu
& PPC_OPCODE_POWER
) != 0)
1410 return bfd_arch_rs6000
;
1411 if ((ppc_cpu
& (PPC_OPCODE_COMMON
| PPC_OPCODE_ANY
)) != 0)
1413 if (strcmp (default_cpu
, "rs6000") == 0)
1414 return bfd_arch_rs6000
;
1415 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1416 return bfd_arch_powerpc
;
1419 as_fatal (_("neither Power nor PowerPC opcodes were selected."));
1420 return bfd_arch_unknown
;
1427 return bfd_mach_ppc64
;
1428 else if (ppc_arch () == bfd_arch_rs6000
)
1429 return bfd_mach_rs6k
;
1430 else if (ppc_cpu
& PPC_OPCODE_TITAN
)
1431 return bfd_mach_ppc_titan
;
1432 else if (ppc_cpu
& PPC_OPCODE_VLE
)
1433 return bfd_mach_ppc_vle
;
1435 return bfd_mach_ppc
;
1439 ppc_target_format (void)
1443 return target_big_endian
? "pe-powerpc" : "pe-powerpcle";
1445 return "xcoff-powermac";
1448 return (ppc_obj64
? "aix5coff64-rs6000" : "aixcoff-rs6000");
1450 return (ppc_obj64
? "aixcoff64-rs6000" : "aixcoff-rs6000");
1456 return (ppc_obj64
? "elf64-powerpc-freebsd" : "elf32-powerpc-freebsd");
1457 # elif defined (TE_VXWORKS)
1458 return "elf32-powerpc-vxworks";
1460 return (target_big_endian
1461 ? (ppc_obj64
? "elf64-powerpc" : "elf32-powerpc")
1462 : (ppc_obj64
? "elf64-powerpcle" : "elf32-powerpcle"));
1467 /* Validate one entry in powerpc_opcodes[] or vle_opcodes[].
1468 Return TRUE if there's a problem, otherwise FALSE. */
1471 insn_validate (const struct powerpc_opcode
*op
)
1473 const unsigned char *o
;
1474 unsigned long omask
= op
->mask
;
1476 /* The mask had better not trim off opcode bits. */
1477 if ((op
->opcode
& omask
) != op
->opcode
)
1479 as_bad (_("mask trims opcode bits for %s"), op
->name
);
1483 /* The operands must not overlap the opcode or each other. */
1484 for (o
= op
->operands
; *o
; ++o
)
1486 if (*o
>= num_powerpc_operands
)
1488 as_bad (_("operand index error for %s"), op
->name
);
1493 const struct powerpc_operand
*operand
= &powerpc_operands
[*o
];
1494 if (operand
->shift
!= PPC_OPSHIFT_INV
)
1498 if (operand
->shift
>= 0)
1499 mask
= operand
->bitm
<< operand
->shift
;
1501 mask
= operand
->bitm
>> -operand
->shift
;
1504 as_bad (_("operand %d overlap in %s"),
1505 (int) (o
- op
->operands
), op
->name
);
1515 /* Insert opcodes and macros into hash tables. Called at startup and
1519 ppc_setup_opcodes (void)
1521 const struct powerpc_opcode
*op
;
1522 const struct powerpc_opcode
*op_end
;
1523 const struct powerpc_macro
*macro
;
1524 const struct powerpc_macro
*macro_end
;
1525 bfd_boolean bad_insn
= FALSE
;
1527 if (ppc_hash
!= NULL
)
1528 hash_die (ppc_hash
);
1529 if (ppc_macro_hash
!= NULL
)
1530 hash_die (ppc_macro_hash
);
1532 /* Insert the opcodes into a hash table. */
1533 ppc_hash
= hash_new ();
1535 if (ENABLE_CHECKING
)
1539 /* Check operand masks. Code here and in the disassembler assumes
1540 all the 1's in the mask are contiguous. */
1541 for (i
= 0; i
< num_powerpc_operands
; ++i
)
1543 unsigned long mask
= powerpc_operands
[i
].bitm
;
1544 unsigned long right_bit
;
1547 right_bit
= mask
& -mask
;
1549 right_bit
= mask
& -mask
;
1550 if (mask
!= right_bit
)
1552 as_bad (_("powerpc_operands[%d].bitm invalid"), i
);
1555 for (j
= i
+ 1; j
< num_powerpc_operands
; ++j
)
1556 if (memcmp (&powerpc_operands
[i
], &powerpc_operands
[j
],
1557 sizeof (powerpc_operands
[0])) == 0)
1559 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1566 op_end
= powerpc_opcodes
+ powerpc_num_opcodes
;
1567 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1569 if (ENABLE_CHECKING
)
1571 if (op
!= powerpc_opcodes
)
1573 int old_opcode
= PPC_OP (op
[-1].opcode
);
1574 int new_opcode
= PPC_OP (op
[0].opcode
);
1576 #ifdef PRINT_OPCODE_TABLE
1577 printf ("%-14s\t#%04d\tmajor op: 0x%x\top: 0x%x\tmask: 0x%x\tflags: 0x%llx\n",
1578 op
->name
, op
- powerpc_opcodes
, (unsigned int) new_opcode
,
1579 (unsigned int) op
->opcode
, (unsigned int) op
->mask
,
1580 (unsigned long long) op
->flags
);
1583 /* The major opcodes had better be sorted. Code in the
1584 disassembler assumes the insns are sorted according to
1586 if (new_opcode
< old_opcode
)
1588 as_bad (_("major opcode is not sorted for %s"),
1593 bad_insn
|= insn_validate (op
);
1596 if ((ppc_cpu
& op
->flags
) != 0
1597 && !(ppc_cpu
& op
->deprecated
))
1601 retval
= hash_insert (ppc_hash
, op
->name
, (void *) op
);
1604 as_bad (_("duplicate instruction %s"),
1611 if ((ppc_cpu
& PPC_OPCODE_ANY
) != 0)
1612 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1613 hash_insert (ppc_hash
, op
->name
, (void *) op
);
1615 op_end
= vle_opcodes
+ vle_num_opcodes
;
1616 for (op
= vle_opcodes
; op
< op_end
; op
++)
1618 if (ENABLE_CHECKING
)
1620 if (op
!= vle_opcodes
)
1622 unsigned old_seg
, new_seg
;
1624 old_seg
= VLE_OP (op
[-1].opcode
, op
[-1].mask
);
1625 old_seg
= VLE_OP_TO_SEG (old_seg
);
1626 new_seg
= VLE_OP (op
[0].opcode
, op
[0].mask
);
1627 new_seg
= VLE_OP_TO_SEG (new_seg
);
1629 #ifdef PRINT_OPCODE_TABLE
1630 printf ("%-14s\t#%04d\tmajor op: 0x%x\top: 0x%x\tmask: 0x%x\tflags: 0x%llx\n",
1631 op
->name
, op
- powerpc_opcodes
, (unsigned int) new_opcode
,
1632 (unsigned int) op
->opcode
, (unsigned int) op
->mask
,
1633 (unsigned long long) op
->flags
);
1635 /* The major opcodes had better be sorted. Code in the
1636 disassembler assumes the insns are sorted according to
1638 if (new_seg
< old_seg
)
1640 as_bad (_("major opcode is not sorted for %s"),
1646 bad_insn
|= insn_validate (op
);
1649 if ((ppc_cpu
& op
->flags
) != 0
1650 && !(ppc_cpu
& op
->deprecated
))
1654 retval
= hash_insert (ppc_hash
, op
->name
, (void *) op
);
1657 as_bad (_("duplicate instruction %s"),
1664 if ((ppc_cpu
& PPC_OPCODE_VLE
) != 0)
1665 for (op
= vle_opcodes
; op
< op_end
; op
++)
1666 hash_insert (ppc_hash
, op
->name
, (void *) op
);
1668 /* Insert the macros into a hash table. */
1669 ppc_macro_hash
= hash_new ();
1671 macro_end
= powerpc_macros
+ powerpc_num_macros
;
1672 for (macro
= powerpc_macros
; macro
< macro_end
; macro
++)
1674 if ((macro
->flags
& ppc_cpu
) != 0 || (ppc_cpu
& PPC_OPCODE_ANY
) != 0)
1678 retval
= hash_insert (ppc_macro_hash
, macro
->name
, (void *) macro
);
1679 if (retval
!= (const char *) NULL
)
1681 as_bad (_("duplicate macro %s"), macro
->name
);
1691 /* This function is called when the assembler starts up. It is called
1692 after the options have been parsed and the output file has been
1700 ppc_cie_data_alignment
= ppc_obj64
? -8 : -4;
1701 ppc_dwarf2_line_min_insn_length
= (ppc_cpu
& PPC_OPCODE_VLE
) ? 2 : 4;
1704 /* Set the ELF flags if desired. */
1705 if (ppc_flags
&& !msolaris
)
1706 bfd_set_private_flags (stdoutput
, ppc_flags
);
1709 ppc_setup_opcodes ();
1711 /* Tell the main code what the endianness is if it is not overridden
1713 if (!set_target_endian
)
1715 set_target_endian
= 1;
1716 target_big_endian
= PPC_BIG_ENDIAN
;
1720 ppc_coff_debug_section
= coff_section_from_bfd_index (stdoutput
, N_DEBUG
);
1722 /* Create dummy symbols to serve as initial csects. This forces the
1723 text csects to precede the data csects. These symbols will not
1725 ppc_text_csects
= symbol_make ("dummy\001");
1726 symbol_get_tc (ppc_text_csects
)->within
= ppc_text_csects
;
1727 ppc_data_csects
= symbol_make ("dummy\001");
1728 symbol_get_tc (ppc_data_csects
)->within
= ppc_data_csects
;
1733 ppc_current_section
= text_section
;
1734 ppc_previous_section
= 0;
1743 if (ppc_apuinfo_list
== NULL
)
1746 /* Ok, so write the section info out. We have this layout:
1750 0 8 length of "APUinfo\0"
1751 4 (n*4) number of APU's (4 bytes each)
1754 20 APU#1 first APU's info
1755 24 APU#2 second APU's info
1760 asection
*seg
= now_seg
;
1761 subsegT subseg
= now_subseg
;
1762 asection
*apuinfo_secp
= (asection
*) NULL
;
1765 /* Create the .PPC.EMB.apuinfo section. */
1766 apuinfo_secp
= subseg_new (".PPC.EMB.apuinfo", 0);
1767 bfd_set_section_flags (stdoutput
,
1769 SEC_HAS_CONTENTS
| SEC_READONLY
);
1772 md_number_to_chars (p
, (valueT
) 8, 4);
1775 md_number_to_chars (p
, (valueT
) ppc_apuinfo_num
* 4, 4);
1778 md_number_to_chars (p
, (valueT
) 2, 4);
1781 strcpy (p
, "APUinfo");
1783 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
1786 md_number_to_chars (p
, (valueT
) ppc_apuinfo_list
[i
], 4);
1789 frag_align (2, 0, 0);
1791 /* We probably can't restore the current segment, for there likely
1794 subseg_set (seg
, subseg
);
1799 /* Insert an operand value into an instruction. */
1801 static unsigned long
1802 ppc_insert_operand (unsigned long insn
,
1803 const struct powerpc_operand
*operand
,
1809 long min
, max
, right
;
1811 max
= operand
->bitm
;
1815 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
1817 if ((operand
->flags
& PPC_OPERAND_SIGNOPT
) == 0)
1818 max
= (max
>> 1) & -right
;
1819 min
= ~max
& -right
;
1822 if ((operand
->flags
& PPC_OPERAND_PLUS1
) != 0)
1825 if ((operand
->flags
& PPC_OPERAND_NEGATIVE
) != 0)
1834 /* Some people write constants with the sign extension done by
1835 hand but only up to 32 bits. This shouldn't really be valid,
1836 but, to permit this code to assemble on a 64-bit host, we
1837 sign extend the 32-bit value to 64 bits if so doing makes the
1840 && (offsetT
) (val
- 0x80000000 - 0x80000000) >= min
1841 && (offsetT
) (val
- 0x80000000 - 0x80000000) <= max
1842 && ((val
- 0x80000000 - 0x80000000) & (right
- 1)) == 0)
1843 val
= val
- 0x80000000 - 0x80000000;
1845 /* Similarly, people write expressions like ~(1<<15), and expect
1846 this to be OK for a 32-bit unsigned value. */
1848 && (offsetT
) (val
+ 0x80000000 + 0x80000000) >= min
1849 && (offsetT
) (val
+ 0x80000000 + 0x80000000) <= max
1850 && ((val
+ 0x80000000 + 0x80000000) & (right
- 1)) == 0)
1851 val
= val
+ 0x80000000 + 0x80000000;
1855 || (val
& (right
- 1)) != 0)
1856 as_bad_value_out_of_range (_("operand"), val
, min
, max
, file
, line
);
1859 if (operand
->insert
)
1864 insn
= (*operand
->insert
) (insn
, (long) val
, cpu
, &errmsg
);
1865 if (errmsg
!= (const char *) NULL
)
1866 as_bad_where (file
, line
, "%s", errmsg
);
1868 else if (operand
->shift
>= 0)
1869 insn
|= ((long) val
& operand
->bitm
) << operand
->shift
;
1871 insn
|= ((long) val
& operand
->bitm
) >> -operand
->shift
;
1878 /* Parse @got, etc. and return the desired relocation. */
1879 static bfd_reloc_code_real_type
1880 ppc_elf_suffix (char **str_p
, expressionS
*exp_p
)
1884 unsigned int length
: 8;
1885 unsigned int valid32
: 1;
1886 unsigned int valid64
: 1;
1895 const struct map_bfd
*ptr
;
1897 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1898 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1899 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1901 static const struct map_bfd mapping
[] = {
1902 MAP ("l", BFD_RELOC_LO16
),
1903 MAP ("h", BFD_RELOC_HI16
),
1904 MAP ("ha", BFD_RELOC_HI16_S
),
1905 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN
),
1906 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN
),
1907 MAP ("got", BFD_RELOC_16_GOTOFF
),
1908 MAP ("got@l", BFD_RELOC_LO16_GOTOFF
),
1909 MAP ("got@h", BFD_RELOC_HI16_GOTOFF
),
1910 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF
),
1911 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF
),
1912 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF
),
1913 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF
),
1914 MAP ("copy", BFD_RELOC_PPC_COPY
),
1915 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT
),
1916 MAP ("sectoff", BFD_RELOC_16_BASEREL
),
1917 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL
),
1918 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL
),
1919 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL
),
1920 MAP ("tls", BFD_RELOC_PPC_TLS
),
1921 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD
),
1922 MAP ("dtprel", BFD_RELOC_PPC_DTPREL
),
1923 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO
),
1924 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI
),
1925 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA
),
1926 MAP ("tprel", BFD_RELOC_PPC_TPREL
),
1927 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO
),
1928 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI
),
1929 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA
),
1930 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16
),
1931 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO
),
1932 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI
),
1933 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA
),
1934 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16
),
1935 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO
),
1936 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI
),
1937 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA
),
1938 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16
),
1939 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO
),
1940 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI
),
1941 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA
),
1942 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16
),
1943 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO
),
1944 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI
),
1945 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA
),
1946 MAP32 ("fixup", BFD_RELOC_CTOR
),
1947 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL
),
1948 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL
),
1949 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC
),
1950 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC
),
1951 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL
),
1952 MAP32 ("sdarel", BFD_RELOC_GPREL16
),
1953 MAP32 ("sdarel@l", BFD_RELOC_PPC_VLE_SDAREL_LO16A
),
1954 MAP32 ("sdarel@h", BFD_RELOC_PPC_VLE_SDAREL_HI16A
),
1955 MAP32 ("sdarel@ha", BFD_RELOC_PPC_VLE_SDAREL_HA16A
),
1956 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32
),
1957 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16
),
1958 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO
),
1959 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI
),
1960 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA
),
1961 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16
),
1962 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL
),
1963 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16
),
1964 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21
),
1965 MAP32 ("sda21@l", BFD_RELOC_PPC_VLE_SDA21_LO
),
1966 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF
),
1967 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16
),
1968 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO
),
1969 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI
),
1970 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA
),
1971 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD
),
1972 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA
),
1973 MAP32 ("xgot", BFD_RELOC_PPC_TOC16
),
1974 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER
),
1975 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S
),
1976 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST
),
1977 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S
),
1978 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC
),
1979 MAP64 ("toc", BFD_RELOC_PPC_TOC16
),
1980 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO
),
1981 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI
),
1982 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA
),
1983 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER
),
1984 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA
),
1985 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST
),
1986 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA
),
1987 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER
),
1988 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA
),
1989 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST
),
1990 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA
),
1991 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED
}
1995 return BFD_RELOC_UNUSED
;
1997 for (ch
= *str
, str2
= ident
;
1998 (str2
< ident
+ sizeof (ident
) - 1
1999 && (ISALNUM (ch
) || ch
== '@'));
2002 *str2
++ = TOLOWER (ch
);
2009 for (ptr
= &mapping
[0]; ptr
->length
> 0; ptr
++)
2010 if (ch
== ptr
->string
[0]
2011 && len
== ptr
->length
2012 && memcmp (ident
, ptr
->string
, ptr
->length
) == 0
2013 && (ppc_obj64
? ptr
->valid64
: ptr
->valid32
))
2015 int reloc
= ptr
->reloc
;
2017 if (!ppc_obj64
&& exp_p
->X_add_number
!= 0)
2021 case BFD_RELOC_16_GOTOFF
:
2022 case BFD_RELOC_LO16_GOTOFF
:
2023 case BFD_RELOC_HI16_GOTOFF
:
2024 case BFD_RELOC_HI16_S_GOTOFF
:
2025 as_warn (_("identifier+constant@got means "
2026 "identifier@got+constant"));
2029 case BFD_RELOC_PPC_GOT_TLSGD16
:
2030 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
2031 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
2032 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
2033 case BFD_RELOC_PPC_GOT_TLSLD16
:
2034 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
2035 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
2036 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
2037 case BFD_RELOC_PPC_GOT_DTPREL16
:
2038 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
2039 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
2040 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
2041 case BFD_RELOC_PPC_GOT_TPREL16
:
2042 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
2043 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
2044 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
2045 as_bad (_("symbol+offset not supported for got tls"));
2050 /* Now check for identifier@suffix+constant. */
2051 if (*str
== '-' || *str
== '+')
2053 char *orig_line
= input_line_pointer
;
2054 expressionS new_exp
;
2056 input_line_pointer
= str
;
2057 expression (&new_exp
);
2058 if (new_exp
.X_op
== O_constant
)
2060 exp_p
->X_add_number
+= new_exp
.X_add_number
;
2061 str
= input_line_pointer
;
2064 if (&input_line_pointer
!= str_p
)
2065 input_line_pointer
= orig_line
;
2069 if (reloc
== (int) BFD_RELOC_PPC64_TOC
2070 && exp_p
->X_op
== O_symbol
2071 && strcmp (S_GET_NAME (exp_p
->X_add_symbol
), ".TOC.") == 0)
2073 /* Change the symbol so that the dummy .TOC. symbol can be
2074 omitted from the object file. */
2075 exp_p
->X_add_symbol
= &abs_symbol
;
2078 return (bfd_reloc_code_real_type
) reloc
;
2081 return BFD_RELOC_UNUSED
;
2084 /* Like normal .long/.short/.word, except support @got, etc.
2085 Clobbers input_line_pointer, checks end-of-line. */
2087 ppc_elf_cons (int nbytes
/* 1=.byte, 2=.word, 4=.long, 8=.llong */)
2090 bfd_reloc_code_real_type reloc
;
2092 if (is_it_end_of_statement ())
2094 demand_empty_rest_of_line ();
2101 if (exp
.X_op
== O_symbol
2102 && *input_line_pointer
== '@'
2103 && (reloc
= ppc_elf_suffix (&input_line_pointer
,
2104 &exp
)) != BFD_RELOC_UNUSED
)
2106 reloc_howto_type
*reloc_howto
;
2109 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, reloc
);
2110 size
= bfd_get_reloc_size (reloc_howto
);
2114 as_bad (_("%s relocations do not fit in %d bytes\n"),
2115 reloc_howto
->name
, nbytes
);
2122 p
= frag_more (nbytes
);
2123 memset (p
, 0, nbytes
);
2125 if (target_big_endian
)
2126 offset
= nbytes
- size
;
2127 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
+ offset
, size
,
2132 emit_expr (&exp
, (unsigned int) nbytes
);
2134 while (*input_line_pointer
++ == ',');
2136 /* Put terminator back into stream. */
2137 input_line_pointer
--;
2138 demand_empty_rest_of_line ();
2141 /* Solaris pseduo op to change to the .rodata section. */
2143 ppc_elf_rdata (int xxx
)
2145 char *save_line
= input_line_pointer
;
2146 static char section
[] = ".rodata\n";
2148 /* Just pretend this is .section .rodata */
2149 input_line_pointer
= section
;
2150 obj_elf_section (xxx
);
2152 input_line_pointer
= save_line
;
2155 /* Pseudo op to make file scope bss items. */
2157 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED
)
2170 name
= input_line_pointer
;
2171 c
= get_symbol_end ();
2173 /* just after name is now '\0'. */
2174 p
= input_line_pointer
;
2177 if (*input_line_pointer
!= ',')
2179 as_bad (_("expected comma after symbol-name: rest of line ignored."));
2180 ignore_rest_of_line ();
2184 input_line_pointer
++; /* skip ',' */
2185 if ((size
= get_absolute_expression ()) < 0)
2187 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
2188 ignore_rest_of_line ();
2192 /* The third argument to .lcomm is the alignment. */
2193 if (*input_line_pointer
!= ',')
2197 ++input_line_pointer
;
2198 align
= get_absolute_expression ();
2201 as_warn (_("ignoring bad alignment"));
2207 symbolP
= symbol_find_or_make (name
);
2210 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
2212 as_bad (_("ignoring attempt to re-define symbol `%s'."),
2213 S_GET_NAME (symbolP
));
2214 ignore_rest_of_line ();
2218 if (S_GET_VALUE (symbolP
) && S_GET_VALUE (symbolP
) != (valueT
) size
)
2220 as_bad (_("length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
2221 S_GET_NAME (symbolP
),
2222 (long) S_GET_VALUE (symbolP
),
2225 ignore_rest_of_line ();
2231 old_subsec
= now_subseg
;
2234 /* Convert to a power of 2 alignment. */
2235 for (align2
= 0; (align
& 1) == 0; align
>>= 1, ++align2
);
2238 as_bad (_("common alignment not a power of 2"));
2239 ignore_rest_of_line ();
2246 record_alignment (bss_section
, align2
);
2247 subseg_set (bss_section
, 0);
2249 frag_align (align2
, 0, 0);
2250 if (S_GET_SEGMENT (symbolP
) == bss_section
)
2251 symbol_get_frag (symbolP
)->fr_symbol
= 0;
2252 symbol_set_frag (symbolP
, frag_now
);
2253 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
, size
,
2256 S_SET_SIZE (symbolP
, size
);
2257 S_SET_SEGMENT (symbolP
, bss_section
);
2258 subseg_set (old_sec
, old_subsec
);
2259 demand_empty_rest_of_line ();
2262 /* Validate any relocations emitted for -mrelocatable, possibly adding
2263 fixups for word relocations in writable segments, so we can adjust
2266 ppc_elf_validate_fix (fixS
*fixp
, segT seg
)
2268 if (fixp
->fx_done
|| fixp
->fx_pcrel
)
2277 case SHLIB_MRELOCATABLE
:
2278 if (fixp
->fx_r_type
<= BFD_RELOC_UNUSED
2279 && fixp
->fx_r_type
!= BFD_RELOC_16_GOTOFF
2280 && fixp
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
2281 && fixp
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
2282 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
2283 && fixp
->fx_r_type
!= BFD_RELOC_16_BASEREL
2284 && fixp
->fx_r_type
!= BFD_RELOC_LO16_BASEREL
2285 && fixp
->fx_r_type
!= BFD_RELOC_HI16_BASEREL
2286 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_BASEREL
2287 && (seg
->flags
& SEC_LOAD
) != 0
2288 && strcmp (segment_name (seg
), ".got2") != 0
2289 && strcmp (segment_name (seg
), ".dtors") != 0
2290 && strcmp (segment_name (seg
), ".ctors") != 0
2291 && strcmp (segment_name (seg
), ".fixup") != 0
2292 && strcmp (segment_name (seg
), ".gcc_except_table") != 0
2293 && strcmp (segment_name (seg
), ".eh_frame") != 0
2294 && strcmp (segment_name (seg
), ".ex_shared") != 0)
2296 if ((seg
->flags
& (SEC_READONLY
| SEC_CODE
)) != 0
2297 || fixp
->fx_r_type
!= BFD_RELOC_CTOR
)
2299 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
2300 _("relocation cannot be done when using -mrelocatable"));
2307 /* Prevent elf_frob_file_before_adjust removing a weak undefined
2308 function descriptor sym if the corresponding code sym is used. */
2311 ppc_frob_file_before_adjust (void)
2319 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
2326 name
= S_GET_NAME (symp
);
2330 if (! S_IS_WEAK (symp
)
2331 || S_IS_DEFINED (symp
))
2334 len
= strlen (name
) + 1;
2335 dotname
= xmalloc (len
+ 1);
2337 memcpy (dotname
+ 1, name
, len
);
2338 dotsym
= symbol_find_noref (dotname
, 1);
2340 if (dotsym
!= NULL
&& (symbol_used_p (dotsym
)
2341 || symbol_used_in_reloc_p (dotsym
)))
2342 symbol_mark_used (symp
);
2346 toc
= bfd_get_section_by_name (stdoutput
, ".toc");
2348 && toc_reloc_types
!= has_large_toc_reloc
2349 && bfd_section_size (stdoutput
, toc
) > 0x10000)
2350 as_warn (_("TOC section size exceeds 64k"));
2352 /* Don't emit .TOC. symbol. */
2353 symp
= symbol_find (".TOC.");
2355 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
2357 #endif /* OBJ_ELF */
2362 * Summary of parse_toc_entry.
2364 * in: Input_line_pointer points to the '[' in one of:
2366 * [toc] [tocv] [toc32] [toc64]
2368 * Anything else is an error of one kind or another.
2371 * return value: success or failure
2372 * toc_kind: kind of toc reference
2373 * input_line_pointer:
2374 * success: first char after the ']'
2375 * failure: unchanged
2379 * [toc] - rv == success, toc_kind = default_toc
2380 * [tocv] - rv == success, toc_kind = data_in_toc
2381 * [toc32] - rv == success, toc_kind = must_be_32
2382 * [toc64] - rv == success, toc_kind = must_be_64
2386 enum toc_size_qualifier
2388 default_toc
, /* The toc cell constructed should be the system default size */
2389 data_in_toc
, /* This is a direct reference to a toc cell */
2390 must_be_32
, /* The toc cell constructed must be 32 bits wide */
2391 must_be_64
/* The toc cell constructed must be 64 bits wide */
2395 parse_toc_entry (enum toc_size_qualifier
*toc_kind
)
2400 enum toc_size_qualifier t
;
2402 /* Save the input_line_pointer. */
2403 start
= input_line_pointer
;
2405 /* Skip over the '[' , and whitespace. */
2406 ++input_line_pointer
;
2409 /* Find the spelling of the operand. */
2410 toc_spec
= input_line_pointer
;
2411 c
= get_symbol_end ();
2413 if (strcmp (toc_spec
, "toc") == 0)
2417 else if (strcmp (toc_spec
, "tocv") == 0)
2421 else if (strcmp (toc_spec
, "toc32") == 0)
2425 else if (strcmp (toc_spec
, "toc64") == 0)
2431 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec
);
2432 *input_line_pointer
= c
;
2433 input_line_pointer
= start
;
2437 /* Now find the ']'. */
2438 *input_line_pointer
= c
;
2440 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2441 c
= *input_line_pointer
++; /* input_line_pointer->past char in c. */
2445 as_bad (_("syntax error: expected `]', found `%c'"), c
);
2446 input_line_pointer
= start
;
2457 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2459 ppc_apuinfo_section_add (unsigned int apu
, unsigned int version
)
2463 /* Check we don't already exist. */
2464 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
2465 if (ppc_apuinfo_list
[i
] == APUID (apu
, version
))
2468 if (ppc_apuinfo_num
== ppc_apuinfo_num_alloc
)
2470 if (ppc_apuinfo_num_alloc
== 0)
2472 ppc_apuinfo_num_alloc
= 4;
2473 ppc_apuinfo_list
= (unsigned long *)
2474 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2478 ppc_apuinfo_num_alloc
+= 4;
2479 ppc_apuinfo_list
= (unsigned long *) xrealloc (ppc_apuinfo_list
,
2480 sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2483 ppc_apuinfo_list
[ppc_apuinfo_num
++] = APUID (apu
, version
);
2489 /* We need to keep a list of fixups. We can't simply generate them as
2490 we go, because that would require us to first create the frag, and
2491 that would screw up references to ``.''. */
2497 bfd_reloc_code_real_type reloc
;
2500 #define MAX_INSN_FIXUPS (5)
2503 #define E_OR2I_INSN 0x7000C000
2504 #define E_AND2I_DOT_INSN 0x7000C800
2505 #define E_OR2IS_INSN 0x7000D000
2506 #define E_LIS_INSN 0x7000E000
2507 #define E_AND2IS_DOT_INSN 0x7000E800
2510 #define E_ADD2I_DOT_INSN 0x70008800
2511 #define E_ADD2IS_INSN 0x70009000
2512 #define E_CMP16I_INSN 0x70009800
2513 #define E_MULL2I_INSN 0x7000A000
2514 #define E_CMPL16I_INSN 0x7000A800
2515 #define E_CMPH16I_INSN 0x7000B000
2516 #define E_CMPHL16I_INSN 0x7000B800
2518 /* This routine is called for each instruction to be assembled. */
2521 md_assemble (char *str
)
2524 const struct powerpc_opcode
*opcode
;
2526 const unsigned char *opindex_ptr
;
2530 struct ppc_fixup fixups
[MAX_INSN_FIXUPS
];
2535 unsigned int insn_length
;
2537 bfd_reloc_code_real_type reloc
;
2540 /* Get the opcode. */
2541 for (s
= str
; *s
!= '\0' && ! ISSPACE (*s
); s
++)
2546 /* Look up the opcode in the hash table. */
2547 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, str
);
2548 if (opcode
== (const struct powerpc_opcode
*) NULL
)
2550 const struct powerpc_macro
*macro
;
2552 macro
= (const struct powerpc_macro
*) hash_find (ppc_macro_hash
, str
);
2553 if (macro
== (const struct powerpc_macro
*) NULL
)
2554 as_bad (_("unrecognized opcode: `%s'"), str
);
2556 ppc_macro (s
, macro
);
2561 insn
= opcode
->opcode
;
2564 while (ISSPACE (*str
))
2567 /* PowerPC operands are just expressions. The only real issue is
2568 that a few operand types are optional. All cases which might use
2569 an optional operand separate the operands only with commas (in some
2570 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2571 have optional operands). Most instructions with optional operands
2572 have only one. Those that have more than one optional operand can
2573 take either all their operands or none. So, before we start seriously
2574 parsing the operands, we check to see if we have optional operands,
2575 and if we do, we count the number of commas to see which operands
2576 have been omitted. */
2578 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2580 const struct powerpc_operand
*operand
;
2582 operand
= &powerpc_operands
[*opindex_ptr
];
2583 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0)
2585 unsigned int opcount
;
2586 unsigned int num_operands_expected
;
2588 /* There is an optional operand. Count the number of
2589 commas in the input line. */
2596 while ((s
= strchr (s
, ',')) != (char *) NULL
)
2603 /* Compute the number of expected operands.
2604 Do not count fake operands. */
2605 for (num_operands_expected
= 0, i
= 0; opcode
->operands
[i
]; i
++)
2606 if ((powerpc_operands
[opcode
->operands
[i
]].flags
& PPC_OPERAND_FAKE
) == 0)
2607 ++ num_operands_expected
;
2609 /* If there are fewer operands in the line then are called
2610 for by the instruction, we want to skip the optional
2612 if (opcount
< num_operands_expected
)
2619 /* Gather the operands. */
2623 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2625 const struct powerpc_operand
*operand
;
2631 if (next_opindex
== 0)
2632 operand
= &powerpc_operands
[*opindex_ptr
];
2635 operand
= &powerpc_operands
[next_opindex
];
2640 /* If this is a fake operand, then we do not expect anything
2642 if ((operand
->flags
& PPC_OPERAND_FAKE
) != 0)
2644 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2645 if (errmsg
!= (const char *) NULL
)
2646 as_bad ("%s", errmsg
);
2650 /* If this is an optional operand, and we are skipping it, just
2652 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0
2655 if (operand
->insert
)
2657 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2658 if (errmsg
!= (const char *) NULL
)
2659 as_bad ("%s", errmsg
);
2661 if ((operand
->flags
& PPC_OPERAND_NEXT
) != 0)
2662 next_opindex
= *opindex_ptr
+ 1;
2666 /* Gather the operand. */
2667 hold
= input_line_pointer
;
2668 input_line_pointer
= str
;
2671 if (*input_line_pointer
== '[')
2673 /* We are expecting something like the second argument here:
2675 * lwz r4,[toc].GS.0.static_int(rtoc)
2676 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2677 * The argument following the `]' must be a symbol name, and the
2678 * register must be the toc register: 'rtoc' or '2'
2680 * The effect is to 0 as the displacement field
2681 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2682 * the appropriate variation) reloc against it based on the symbol.
2683 * The linker will build the toc, and insert the resolved toc offset.
2686 * o The size of the toc entry is currently assumed to be
2687 * 32 bits. This should not be assumed to be a hard coded
2689 * o In an effort to cope with a change from 32 to 64 bits,
2690 * there are also toc entries that are specified to be
2691 * either 32 or 64 bits:
2692 * lwz r4,[toc32].GS.0.static_int(rtoc)
2693 * lwz r4,[toc64].GS.0.static_int(rtoc)
2694 * These demand toc entries of the specified size, and the
2695 * instruction probably requires it.
2699 enum toc_size_qualifier toc_kind
;
2700 bfd_reloc_code_real_type toc_reloc
;
2702 /* Go parse off the [tocXX] part. */
2703 valid_toc
= parse_toc_entry (&toc_kind
);
2707 /* Note: message has already been issued.
2708 FIXME: what sort of recovery should we do?
2709 demand_rest_of_line (); return; ? */
2712 /* Now get the symbol following the ']'. */
2718 /* In this case, we may not have seen the symbol yet,
2719 since it is allowed to appear on a .extern or .globl
2720 or just be a label in the .data section. */
2721 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2724 /* 1. The symbol must be defined and either in the toc
2725 section, or a global.
2726 2. The reloc generated must have the TOCDEFN flag set
2727 in upper bit mess of the reloc type.
2728 FIXME: It's a little confusing what the tocv
2729 qualifier can be used for. At the very least, I've
2730 seen three uses, only one of which I'm sure I can
2732 if (ex
.X_op
== O_symbol
)
2734 gas_assert (ex
.X_add_symbol
!= NULL
);
2735 if (symbol_get_bfdsym (ex
.X_add_symbol
)->section
2738 as_bad (_("[tocv] symbol is not a toc symbol"));
2742 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2745 /* FIXME: these next two specifically specify 32/64 bit
2746 toc entries. We don't support them today. Is this
2747 the right way to say that? */
2748 toc_reloc
= BFD_RELOC_UNUSED
;
2749 as_bad (_("unimplemented toc32 expression modifier"));
2752 /* FIXME: see above. */
2753 toc_reloc
= BFD_RELOC_UNUSED
;
2754 as_bad (_("unimplemented toc64 expression modifier"));
2758 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2764 /* We need to generate a fixup for this expression. */
2765 if (fc
>= MAX_INSN_FIXUPS
)
2766 as_fatal (_("too many fixups"));
2768 fixups
[fc
].reloc
= toc_reloc
;
2769 fixups
[fc
].exp
= ex
;
2770 fixups
[fc
].opindex
= *opindex_ptr
;
2773 /* Ok. We've set up the fixup for the instruction. Now make it
2774 look like the constant 0 was found here. */
2776 ex
.X_op
= O_constant
;
2777 ex
.X_add_number
= 0;
2778 ex
.X_add_symbol
= NULL
;
2779 ex
.X_op_symbol
= NULL
;
2786 && (((operand
->flags
& PPC_OPERAND_CR_BIT
) != 0)
2787 || ((operand
->flags
& PPC_OPERAND_CR_REG
) != 0)))
2788 || !register_name (&ex
))
2790 char save_lex
= lex_type
['%'];
2792 if (((operand
->flags
& PPC_OPERAND_CR_REG
) != 0)
2793 || (operand
->flags
& PPC_OPERAND_CR_BIT
) != 0)
2796 lex_type
['%'] |= LEX_BEGIN_NAME
;
2800 lex_type
['%'] = save_lex
;
2804 str
= input_line_pointer
;
2805 input_line_pointer
= hold
;
2807 if (ex
.X_op
== O_illegal
)
2808 as_bad (_("illegal operand"));
2809 else if (ex
.X_op
== O_absent
)
2810 as_bad (_("missing operand"));
2811 else if (ex
.X_op
== O_register
)
2813 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2814 ppc_cpu
, (char *) NULL
, 0);
2816 else if (ex
.X_op
== O_constant
)
2819 /* Allow @HA, @L, @H on constants. */
2820 char *orig_str
= str
;
2822 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2829 case BFD_RELOC_LO16
:
2830 /* X_unsigned is the default, so if the user has done
2831 something which cleared it, we always produce a
2833 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2834 ex
.X_add_number
&= 0xffff;
2836 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2839 case BFD_RELOC_HI16
:
2840 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2841 ex
.X_add_number
= PPC_HI (ex
.X_add_number
);
2843 ex
.X_add_number
= SEX16 (PPC_HI (ex
.X_add_number
));
2846 case BFD_RELOC_HI16_S
:
2847 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2848 ex
.X_add_number
= PPC_HA (ex
.X_add_number
);
2850 ex
.X_add_number
= SEX16 (PPC_HA (ex
.X_add_number
));
2853 case BFD_RELOC_PPC64_HIGHER
:
2854 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2855 ex
.X_add_number
= PPC_HIGHER (ex
.X_add_number
);
2857 ex
.X_add_number
= SEX16 (PPC_HIGHER (ex
.X_add_number
));
2860 case BFD_RELOC_PPC64_HIGHER_S
:
2861 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2862 ex
.X_add_number
= PPC_HIGHERA (ex
.X_add_number
);
2864 ex
.X_add_number
= SEX16 (PPC_HIGHERA (ex
.X_add_number
));
2867 case BFD_RELOC_PPC64_HIGHEST
:
2868 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2869 ex
.X_add_number
= PPC_HIGHEST (ex
.X_add_number
);
2871 ex
.X_add_number
= SEX16 (PPC_HIGHEST (ex
.X_add_number
));
2874 case BFD_RELOC_PPC64_HIGHEST_S
:
2875 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2876 ex
.X_add_number
= PPC_HIGHESTA (ex
.X_add_number
);
2878 ex
.X_add_number
= SEX16 (PPC_HIGHESTA (ex
.X_add_number
));
2881 #endif /* OBJ_ELF */
2882 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2883 ppc_cpu
, (char *) NULL
, 0);
2888 if (ex
.X_op
== O_symbol
&& str
[0] == '(')
2890 const char *sym_name
= S_GET_NAME (ex
.X_add_symbol
);
2891 if (sym_name
[0] == '.')
2894 if (strcasecmp (sym_name
, "__tls_get_addr") == 0)
2896 expressionS tls_exp
;
2898 hold
= input_line_pointer
;
2899 input_line_pointer
= str
+ 1;
2900 expression (&tls_exp
);
2901 if (tls_exp
.X_op
== O_symbol
)
2903 reloc
= BFD_RELOC_UNUSED
;
2904 if (strncasecmp (input_line_pointer
, "@tlsgd)", 7) == 0)
2906 reloc
= BFD_RELOC_PPC_TLSGD
;
2907 input_line_pointer
+= 7;
2909 else if (strncasecmp (input_line_pointer
, "@tlsld)", 7) == 0)
2911 reloc
= BFD_RELOC_PPC_TLSLD
;
2912 input_line_pointer
+= 7;
2914 if (reloc
!= BFD_RELOC_UNUSED
)
2917 str
= input_line_pointer
;
2919 if (fc
>= MAX_INSN_FIXUPS
)
2920 as_fatal (_("too many fixups"));
2921 fixups
[fc
].exp
= tls_exp
;
2922 fixups
[fc
].opindex
= *opindex_ptr
;
2923 fixups
[fc
].reloc
= reloc
;
2927 input_line_pointer
= hold
;
2931 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2933 /* Some TLS tweaks. */
2939 case BFD_RELOC_PPC_TLS
:
2940 if (!_bfd_elf_ppc_at_tls_transform (opcode
->opcode
, 0))
2941 as_bad (_("@tls may not be used with \"%s\" operands"),
2943 else if (operand
->shift
!= 11)
2944 as_bad (_("@tls may only be used in last operand"));
2946 insn
= ppc_insert_operand (insn
, operand
,
2948 ppc_cpu
, (char *) NULL
, 0);
2951 /* We'll only use the 32 (or 64) bit form of these relocations
2952 in constants. Instructions get the 16 bit form. */
2953 case BFD_RELOC_PPC_DTPREL
:
2954 reloc
= BFD_RELOC_PPC_DTPREL16
;
2956 case BFD_RELOC_PPC_TPREL
:
2957 reloc
= BFD_RELOC_PPC_TPREL16
;
2961 /* If VLE-mode convert LO/HI/HA relocations. */
2962 if (opcode
->flags
& PPC_OPCODE_VLE
)
2964 int tmp_insn
= insn
& opcode
->mask
;
2966 int use_d_reloc
= (tmp_insn
== E_OR2I_INSN
2967 || tmp_insn
== E_AND2I_DOT_INSN
2968 || tmp_insn
== E_OR2IS_INSN
2969 || tmp_insn
== E_LIS_INSN
2970 || tmp_insn
== E_AND2IS_DOT_INSN
);
2973 int use_a_reloc
= (tmp_insn
== E_ADD2I_DOT_INSN
2974 || tmp_insn
== E_ADD2IS_INSN
2975 || tmp_insn
== E_CMP16I_INSN
2976 || tmp_insn
== E_MULL2I_INSN
2977 || tmp_insn
== E_CMPL16I_INSN
2978 || tmp_insn
== E_CMPH16I_INSN
2979 || tmp_insn
== E_CMPHL16I_INSN
);
2986 case BFD_RELOC_PPC_EMB_SDA21
:
2987 reloc
= BFD_RELOC_PPC_VLE_SDA21
;
2990 case BFD_RELOC_LO16
:
2992 reloc
= BFD_RELOC_PPC_VLE_LO16D
;
2993 else if (use_a_reloc
)
2994 reloc
= BFD_RELOC_PPC_VLE_LO16A
;
2997 case BFD_RELOC_HI16
:
2999 reloc
= BFD_RELOC_PPC_VLE_HI16D
;
3000 else if (use_a_reloc
)
3001 reloc
= BFD_RELOC_PPC_VLE_HI16A
;
3004 case BFD_RELOC_HI16_S
:
3006 reloc
= BFD_RELOC_PPC_VLE_HA16D
;
3007 else if (use_a_reloc
)
3008 reloc
= BFD_RELOC_PPC_VLE_HA16A
;
3011 case BFD_RELOC_PPC_VLE_SDAREL_LO16A
:
3013 reloc
= BFD_RELOC_PPC_VLE_SDAREL_LO16D
;
3016 case BFD_RELOC_PPC_VLE_SDAREL_HI16A
:
3018 reloc
= BFD_RELOC_PPC_VLE_SDAREL_HI16D
;
3021 case BFD_RELOC_PPC_VLE_SDAREL_HA16A
:
3023 reloc
= BFD_RELOC_PPC_VLE_SDAREL_HA16D
;
3028 /* For the absolute forms of branches, convert the PC
3029 relative form back into the absolute. */
3030 if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0)
3034 case BFD_RELOC_PPC_B26
:
3035 reloc
= BFD_RELOC_PPC_BA26
;
3037 case BFD_RELOC_PPC_B16
:
3038 reloc
= BFD_RELOC_PPC_BA16
;
3040 case BFD_RELOC_PPC_B16_BRTAKEN
:
3041 reloc
= BFD_RELOC_PPC_BA16_BRTAKEN
;
3043 case BFD_RELOC_PPC_B16_BRNTAKEN
:
3044 reloc
= BFD_RELOC_PPC_BA16_BRNTAKEN
;
3053 case BFD_RELOC_PPC_TOC16
:
3054 toc_reloc_types
|= has_small_toc_reloc
;
3056 case BFD_RELOC_PPC64_TOC16_LO
:
3057 case BFD_RELOC_PPC64_TOC16_HI
:
3058 case BFD_RELOC_PPC64_TOC16_HA
:
3059 toc_reloc_types
|= has_large_toc_reloc
;
3066 && (operand
->flags
& (PPC_OPERAND_DS
| PPC_OPERAND_DQ
)) != 0)
3071 reloc
= BFD_RELOC_PPC64_ADDR16_DS
;
3073 case BFD_RELOC_LO16
:
3074 reloc
= BFD_RELOC_PPC64_ADDR16_LO_DS
;
3076 case BFD_RELOC_16_GOTOFF
:
3077 reloc
= BFD_RELOC_PPC64_GOT16_DS
;
3079 case BFD_RELOC_LO16_GOTOFF
:
3080 reloc
= BFD_RELOC_PPC64_GOT16_LO_DS
;
3082 case BFD_RELOC_LO16_PLTOFF
:
3083 reloc
= BFD_RELOC_PPC64_PLT16_LO_DS
;
3085 case BFD_RELOC_16_BASEREL
:
3086 reloc
= BFD_RELOC_PPC64_SECTOFF_DS
;
3088 case BFD_RELOC_LO16_BASEREL
:
3089 reloc
= BFD_RELOC_PPC64_SECTOFF_LO_DS
;
3091 case BFD_RELOC_PPC_TOC16
:
3092 reloc
= BFD_RELOC_PPC64_TOC16_DS
;
3094 case BFD_RELOC_PPC64_TOC16_LO
:
3095 reloc
= BFD_RELOC_PPC64_TOC16_LO_DS
;
3097 case BFD_RELOC_PPC64_PLTGOT16
:
3098 reloc
= BFD_RELOC_PPC64_PLTGOT16_DS
;
3100 case BFD_RELOC_PPC64_PLTGOT16_LO
:
3101 reloc
= BFD_RELOC_PPC64_PLTGOT16_LO_DS
;
3103 case BFD_RELOC_PPC_DTPREL16
:
3104 reloc
= BFD_RELOC_PPC64_DTPREL16_DS
;
3106 case BFD_RELOC_PPC_DTPREL16_LO
:
3107 reloc
= BFD_RELOC_PPC64_DTPREL16_LO_DS
;
3109 case BFD_RELOC_PPC_TPREL16
:
3110 reloc
= BFD_RELOC_PPC64_TPREL16_DS
;
3112 case BFD_RELOC_PPC_TPREL16_LO
:
3113 reloc
= BFD_RELOC_PPC64_TPREL16_LO_DS
;
3115 case BFD_RELOC_PPC_GOT_DTPREL16
:
3116 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
3117 case BFD_RELOC_PPC_GOT_TPREL16
:
3118 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
3121 as_bad (_("unsupported relocation for DS offset field"));
3127 /* We need to generate a fixup for this expression. */
3128 if (fc
>= MAX_INSN_FIXUPS
)
3129 as_fatal (_("too many fixups"));
3130 fixups
[fc
].exp
= ex
;
3131 fixups
[fc
].opindex
= *opindex_ptr
;
3132 fixups
[fc
].reloc
= reloc
;
3138 /* We need to generate a fixup for this expression. */
3139 if (fc
>= MAX_INSN_FIXUPS
)
3140 as_fatal (_("too many fixups"));
3141 fixups
[fc
].exp
= ex
;
3142 fixups
[fc
].opindex
= *opindex_ptr
;
3143 fixups
[fc
].reloc
= BFD_RELOC_UNUSED
;
3146 #endif /* OBJ_ELF */
3152 /* If expecting more operands, then we want to see "),". */
3153 if (*str
== endc
&& opindex_ptr
[1] != 0)
3157 while (ISSPACE (*str
));
3161 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0)
3169 /* The call to expression should have advanced str past any
3172 && (endc
!= ',' || *str
!= '\0'))
3175 as_bad (_("syntax error; end of line, expected `%c'"), endc
);
3177 as_bad (_("syntax error; found `%c', expected `%c'"), *str
, endc
);
3185 while (ISSPACE (*str
))
3189 as_bad (_("junk at end of line: `%s'"), str
);
3192 /* Do we need/want an APUinfo section? */
3193 if ((ppc_cpu
& (PPC_OPCODE_E500
| PPC_OPCODE_E500MC
| PPC_OPCODE_VLE
)) != 0)
3195 /* These are all version "1". */
3196 if (opcode
->flags
& PPC_OPCODE_SPE
)
3197 ppc_apuinfo_section_add (PPC_APUINFO_SPE
, 1);
3198 if (opcode
->flags
& PPC_OPCODE_ISEL
)
3199 ppc_apuinfo_section_add (PPC_APUINFO_ISEL
, 1);
3200 if (opcode
->flags
& PPC_OPCODE_EFS
)
3201 ppc_apuinfo_section_add (PPC_APUINFO_EFS
, 1);
3202 if (opcode
->flags
& PPC_OPCODE_BRLOCK
)
3203 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK
, 1);
3204 if (opcode
->flags
& PPC_OPCODE_PMR
)
3205 ppc_apuinfo_section_add (PPC_APUINFO_PMR
, 1);
3206 if (opcode
->flags
& PPC_OPCODE_CACHELCK
)
3207 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK
, 1);
3208 if (opcode
->flags
& PPC_OPCODE_RFMCI
)
3209 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI
, 1);
3210 if (opcode
->flags
& PPC_OPCODE_VLE
)
3211 ppc_apuinfo_section_add (PPC_APUINFO_VLE
, 1);
3215 /* Write out the instruction. */
3216 /* Differentiate between two and four byte insns. */
3217 if (ppc_mach () == bfd_mach_ppc_vle
)
3219 if (PPC_OP_SE_VLE (insn
))
3223 addr_mod
= frag_now_fix () & 1;
3228 addr_mod
= frag_now_fix () & 3;
3230 /* All instructions can start on a 2 byte boundary for VLE. */
3231 f
= frag_more (insn_length
);
3232 if (frag_now
->has_code
&& frag_now
->insn_addr
!= addr_mod
)
3234 if (ppc_mach() == bfd_mach_ppc_vle
)
3235 as_bad (_("instruction address is not a multiple of 2"));
3237 as_bad (_("instruction address is not a multiple of 4"));
3239 frag_now
->insn_addr
= addr_mod
;
3240 frag_now
->has_code
= 1;
3241 md_number_to_chars (f
, insn
, insn_length
);
3244 dwarf2_emit_insn (insn_length
);
3247 /* Create any fixups. At this point we do not use a
3248 bfd_reloc_code_real_type, but instead just use the
3249 BFD_RELOC_UNUSED plus the operand index. This lets us easily
3250 handle fixups for any operand type, although that is admittedly
3251 not a very exciting feature. We pick a BFD reloc type in
3253 for (i
= 0; i
< fc
; i
++)
3255 if (fixups
[i
].reloc
!= BFD_RELOC_UNUSED
)
3257 reloc_howto_type
*reloc_howto
;
3262 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
3266 size
= bfd_get_reloc_size (reloc_howto
);
3267 offset
= target_big_endian
? (4 - size
) : 0;
3269 if (size
< 1 || size
> 4)
3272 fixP
= fix_new_exp (frag_now
,
3273 f
- frag_now
->fr_literal
+ offset
,
3276 reloc_howto
->pc_relative
,
3279 /* Turn off complaints that the addend is too large for things like
3281 switch (fixups
[i
].reloc
)
3283 case BFD_RELOC_16_GOTOFF
:
3284 case BFD_RELOC_PPC_TOC16
:
3285 case BFD_RELOC_LO16
:
3286 case BFD_RELOC_HI16
:
3287 case BFD_RELOC_HI16_S
:
3288 case BFD_RELOC_PPC_VLE_LO16A
:
3289 case BFD_RELOC_PPC_VLE_LO16D
:
3290 case BFD_RELOC_PPC_VLE_HI16A
:
3291 case BFD_RELOC_PPC_VLE_HI16D
:
3292 case BFD_RELOC_PPC_VLE_HA16A
:
3293 case BFD_RELOC_PPC_VLE_HA16D
:
3295 case BFD_RELOC_PPC64_HIGHER
:
3296 case BFD_RELOC_PPC64_HIGHER_S
:
3297 case BFD_RELOC_PPC64_HIGHEST
:
3298 case BFD_RELOC_PPC64_HIGHEST_S
:
3300 fixP
->fx_no_overflow
= 1;
3308 const struct powerpc_operand
*operand
;
3310 operand
= &powerpc_operands
[fixups
[i
].opindex
];
3311 fix_new_exp (frag_now
,
3312 f
- frag_now
->fr_literal
,
3315 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
3316 ((bfd_reloc_code_real_type
)
3317 (fixups
[i
].opindex
+ (int) BFD_RELOC_UNUSED
)));
3322 /* Handle a macro. Gather all the operands, transform them as
3323 described by the macro, and call md_assemble recursively. All the
3324 operands are separated by commas; we don't accept parentheses
3325 around operands here. */
3328 ppc_macro (char *str
, const struct powerpc_macro
*macro
)
3339 /* Gather the users operands into the operands array. */
3344 if (count
>= sizeof operands
/ sizeof operands
[0])
3346 operands
[count
++] = s
;
3347 s
= strchr (s
, ',');
3348 if (s
== (char *) NULL
)
3353 if (count
!= macro
->operands
)
3355 as_bad (_("wrong number of operands"));
3359 /* Work out how large the string must be (the size is unbounded
3360 because it includes user input). */
3362 format
= macro
->format
;
3363 while (*format
!= '\0')
3372 arg
= strtol (format
+ 1, &send
, 10);
3373 know (send
!= format
&& arg
< count
);
3374 len
+= strlen (operands
[arg
]);
3379 /* Put the string together. */
3380 complete
= s
= (char *) alloca (len
+ 1);
3381 format
= macro
->format
;
3382 while (*format
!= '\0')
3388 arg
= strtol (format
+ 1, &send
, 10);
3389 strcpy (s
, operands
[arg
]);
3396 /* Assemble the constructed instruction. */
3397 md_assemble (complete
);
3401 /* For ELF, add support for SHT_ORDERED. */
3404 ppc_section_type (char *str
, size_t len
)
3406 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
3413 ppc_section_flags (flagword flags
, bfd_vma attr ATTRIBUTE_UNUSED
, int type
)
3415 if (type
== SHT_ORDERED
)
3416 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
3420 #endif /* OBJ_ELF */
3423 /* Pseudo-op handling. */
3425 /* The .byte pseudo-op. This is similar to the normal .byte
3426 pseudo-op, but it can also take a single ASCII string. */
3429 ppc_byte (int ignore ATTRIBUTE_UNUSED
)
3431 if (*input_line_pointer
!= '\"')
3437 /* Gather characters. A real double quote is doubled. Unusual
3438 characters are not permitted. */
3439 ++input_line_pointer
;
3444 c
= *input_line_pointer
++;
3448 if (*input_line_pointer
!= '\"')
3450 ++input_line_pointer
;
3453 FRAG_APPEND_1_CHAR (c
);
3456 demand_empty_rest_of_line ();
3461 /* XCOFF specific pseudo-op handling. */
3463 /* This is set if we are creating a .stabx symbol, since we don't want
3464 to handle symbol suffixes for such symbols. */
3465 static bfd_boolean ppc_stab_symbol
;
3467 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
3468 symbols in the .bss segment as though they were local common
3469 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3470 aligns .comm and .lcomm to 4 bytes. */
3473 ppc_comm (int lcomm
)
3475 asection
*current_seg
= now_seg
;
3476 subsegT current_subseg
= now_subseg
;
3482 symbolS
*lcomm_sym
= NULL
;
3486 name
= input_line_pointer
;
3487 endc
= get_symbol_end ();
3488 end_name
= input_line_pointer
;
3491 if (*input_line_pointer
!= ',')
3493 as_bad (_("missing size"));
3494 ignore_rest_of_line ();
3497 ++input_line_pointer
;
3499 size
= get_absolute_expression ();
3502 as_bad (_("negative size"));
3503 ignore_rest_of_line ();
3509 /* The third argument to .comm is the alignment. */
3510 if (*input_line_pointer
!= ',')
3514 ++input_line_pointer
;
3515 align
= get_absolute_expression ();
3518 as_warn (_("ignoring bad alignment"));
3533 /* The third argument to .lcomm appears to be the real local
3534 common symbol to create. References to the symbol named in
3535 the first argument are turned into references to the third
3537 if (*input_line_pointer
!= ',')
3539 as_bad (_("missing real symbol name"));
3540 ignore_rest_of_line ();
3543 ++input_line_pointer
;
3545 lcomm_name
= input_line_pointer
;
3546 lcomm_endc
= get_symbol_end ();
3548 lcomm_sym
= symbol_find_or_make (lcomm_name
);
3550 *input_line_pointer
= lcomm_endc
;
3554 sym
= symbol_find_or_make (name
);
3557 if (S_IS_DEFINED (sym
)
3558 || S_GET_VALUE (sym
) != 0)
3560 as_bad (_("attempt to redefine symbol"));
3561 ignore_rest_of_line ();
3565 record_alignment (bss_section
, align
);
3568 || ! S_IS_DEFINED (lcomm_sym
))
3577 S_SET_EXTERNAL (sym
);
3581 symbol_get_tc (lcomm_sym
)->output
= 1;
3582 def_sym
= lcomm_sym
;
3586 subseg_set (bss_section
, 1);
3587 frag_align (align
, 0, 0);
3589 symbol_set_frag (def_sym
, frag_now
);
3590 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
3591 def_size
, (char *) NULL
);
3593 S_SET_SEGMENT (def_sym
, bss_section
);
3594 symbol_get_tc (def_sym
)->align
= align
;
3598 /* Align the size of lcomm_sym. */
3599 symbol_get_frag (lcomm_sym
)->fr_offset
=
3600 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
3601 &~ ((1 << align
) - 1));
3602 if (align
> symbol_get_tc (lcomm_sym
)->align
)
3603 symbol_get_tc (lcomm_sym
)->align
= align
;
3608 /* Make sym an offset from lcomm_sym. */
3609 S_SET_SEGMENT (sym
, bss_section
);
3610 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
3611 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
3612 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
3615 subseg_set (current_seg
, current_subseg
);
3617 demand_empty_rest_of_line ();
3620 /* The .csect pseudo-op. This switches us into a different
3621 subsegment. The first argument is a symbol whose value is the
3622 start of the .csect. In COFF, csect symbols get special aux
3623 entries defined by the x_csect field of union internal_auxent. The
3624 optional second argument is the alignment (the default is 2). */
3627 ppc_csect (int ignore ATTRIBUTE_UNUSED
)
3634 name
= input_line_pointer
;
3635 endc
= get_symbol_end ();
3637 sym
= symbol_find_or_make (name
);
3639 *input_line_pointer
= endc
;
3641 if (S_GET_NAME (sym
)[0] == '\0')
3643 /* An unnamed csect is assumed to be [PR]. */
3644 symbol_get_tc (sym
)->symbol_class
= XMC_PR
;
3648 if (*input_line_pointer
== ',')
3650 ++input_line_pointer
;
3651 align
= get_absolute_expression ();
3654 ppc_change_csect (sym
, align
);
3656 demand_empty_rest_of_line ();
3659 /* Change to a different csect. */
3662 ppc_change_csect (symbolS
*sym
, offsetT align
)
3664 if (S_IS_DEFINED (sym
))
3665 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
3675 /* This is a new csect. We need to look at the symbol class to
3676 figure out whether it should go in the text section or the
3680 switch (symbol_get_tc (sym
)->symbol_class
)
3690 S_SET_SEGMENT (sym
, text_section
);
3691 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
3692 ++ppc_text_subsegment
;
3693 list_ptr
= &ppc_text_csects
;
3703 if (ppc_toc_csect
!= NULL
3704 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
3705 == ppc_data_subsegment
))
3707 S_SET_SEGMENT (sym
, data_section
);
3708 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
3709 ++ppc_data_subsegment
;
3710 list_ptr
= &ppc_data_csects
;
3716 /* We set the obstack chunk size to a small value before
3717 changing subsegments, so that we don't use a lot of memory
3718 space for what may be a small section. */
3719 hold_chunksize
= chunksize
;
3722 sec
= subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3723 symbol_get_tc (sym
)->subseg
);
3725 chunksize
= hold_chunksize
;
3728 ppc_after_toc_frag
= frag_now
;
3730 record_alignment (sec
, align
);
3732 frag_align_code (align
, 0);
3734 frag_align (align
, 0, 0);
3736 symbol_set_frag (sym
, frag_now
);
3737 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3739 symbol_get_tc (sym
)->align
= align
;
3740 symbol_get_tc (sym
)->output
= 1;
3741 symbol_get_tc (sym
)->within
= sym
;
3743 for (list
= *list_ptr
;
3744 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3745 list
= symbol_get_tc (list
)->next
)
3747 symbol_get_tc (list
)->next
= sym
;
3749 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3750 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3754 ppc_current_csect
= sym
;
3758 ppc_change_debug_section (unsigned int idx
, subsegT subseg
)
3762 const struct xcoff_dwsect_name
*dw
= &xcoff_dwsect_names
[idx
];
3764 sec
= subseg_new (dw
->name
, subseg
);
3765 oldflags
= bfd_get_section_flags (stdoutput
, sec
);
3766 if (oldflags
== SEC_NO_FLAGS
)
3768 /* Just created section. */
3769 gas_assert (dw_sections
[idx
].sect
== NULL
);
3771 bfd_set_section_flags (stdoutput
, sec
, SEC_DEBUGGING
);
3772 bfd_set_section_alignment (stdoutput
, sec
, 0);
3773 dw_sections
[idx
].sect
= sec
;
3776 /* Not anymore in a csect. */
3777 ppc_current_csect
= NULL
;
3780 /* The .dwsect pseudo-op. Defines a DWARF section. Syntax is:
3781 .dwsect flag [, opt-label ]
3785 ppc_dwsect (int ignore ATTRIBUTE_UNUSED
)
3789 const struct xcoff_dwsect_name
*dw
;
3790 struct dw_subsection
*subseg
;
3791 struct dw_section
*dws
;
3795 flag
= get_absolute_expression ();
3797 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
3798 if (xcoff_dwsect_names
[i
].flag
== flag
)
3800 dw
= &xcoff_dwsect_names
[i
];
3804 /* Parse opt-label. */
3805 if (*input_line_pointer
== ',')
3810 ++input_line_pointer
;
3812 label
= input_line_pointer
;
3813 c
= get_symbol_end ();
3814 opt_label
= symbol_find_or_make (label
);
3815 *input_line_pointer
= c
;
3820 demand_empty_rest_of_line ();
3822 /* Return now in case of unknown subsection. */
3825 as_bad (_("no known dwarf XCOFF section for flag 0x%08x\n"),
3830 /* Find the subsection. */
3831 dws
= &dw_sections
[i
];
3833 if (opt_label
!= NULL
&& S_IS_DEFINED (opt_label
))
3835 /* Sanity check (note that in theory S_GET_SEGMENT mustn't be null). */
3836 if (dws
->sect
== NULL
|| S_GET_SEGMENT (opt_label
) != dws
->sect
)
3838 as_bad (_("label %s was not defined in this dwarf section"),
3839 S_GET_NAME (opt_label
));
3840 subseg
= dws
->anon_subseg
;
3844 subseg
= symbol_get_tc (opt_label
)->u
.dw
;
3849 /* Switch to the subsection. */
3850 ppc_change_debug_section (i
, subseg
->subseg
);
3854 /* Create a new dw subsection. */
3855 subseg
= (struct dw_subsection
*)
3856 xmalloc (sizeof (struct dw_subsection
));
3858 if (opt_label
== NULL
)
3860 /* The anonymous one. */
3862 subseg
->link
= NULL
;
3863 dws
->anon_subseg
= subseg
;
3868 if (dws
->list_subseg
!= NULL
)
3869 subseg
->subseg
= dws
->list_subseg
->subseg
+ 1;
3873 subseg
->link
= dws
->list_subseg
;
3874 dws
->list_subseg
= subseg
;
3875 symbol_get_tc (opt_label
)->u
.dw
= subseg
;
3878 ppc_change_debug_section (i
, subseg
->subseg
);
3882 /* Add the length field. */
3883 expressionS
*exp
= &subseg
->end_exp
;
3886 if (opt_label
!= NULL
)
3887 symbol_set_value_now (opt_label
);
3889 /* Add the length field. Note that according to the AIX assembler
3890 manual, the size of the length field is 4 for powerpc32 but
3891 12 for powerpc64. */
3894 /* Write the 64bit marker. */
3895 md_number_to_chars (frag_more (4), -1, 4);
3898 exp
->X_op
= O_subtract
;
3899 exp
->X_op_symbol
= symbol_temp_new_now ();
3900 exp
->X_add_symbol
= symbol_temp_make ();
3902 sz
= ppc_obj64
? 8 : 4;
3903 exp
->X_add_number
= -sz
;
3904 emit_expr (exp
, sz
);
3909 /* This function handles the .text and .data pseudo-ops. These
3910 pseudo-ops aren't really used by XCOFF; we implement them for the
3911 convenience of people who aren't used to XCOFF. */
3914 ppc_section (int type
)
3921 else if (type
== 'd')
3926 sym
= symbol_find_or_make (name
);
3928 ppc_change_csect (sym
, 2);
3930 demand_empty_rest_of_line ();
3933 /* This function handles the .section pseudo-op. This is mostly to
3934 give an error, since XCOFF only supports .text, .data and .bss, but
3935 we do permit the user to name the text or data section. */
3938 ppc_named_section (int ignore ATTRIBUTE_UNUSED
)
3941 const char *real_name
;
3945 user_name
= input_line_pointer
;
3946 c
= get_symbol_end ();
3948 if (strcmp (user_name
, ".text") == 0)
3949 real_name
= ".text[PR]";
3950 else if (strcmp (user_name
, ".data") == 0)
3951 real_name
= ".data[RW]";
3954 as_bad (_("the XCOFF file format does not support arbitrary sections"));
3955 *input_line_pointer
= c
;
3956 ignore_rest_of_line ();
3960 *input_line_pointer
= c
;
3962 sym
= symbol_find_or_make (real_name
);
3964 ppc_change_csect (sym
, 2);
3966 demand_empty_rest_of_line ();
3969 /* The .extern pseudo-op. We create an undefined symbol. */
3972 ppc_extern (int ignore ATTRIBUTE_UNUSED
)
3977 name
= input_line_pointer
;
3978 endc
= get_symbol_end ();
3980 (void) symbol_find_or_make (name
);
3982 *input_line_pointer
= endc
;
3984 demand_empty_rest_of_line ();
3987 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3990 ppc_lglobl (int ignore ATTRIBUTE_UNUSED
)
3996 name
= input_line_pointer
;
3997 endc
= get_symbol_end ();
3999 sym
= symbol_find_or_make (name
);
4001 *input_line_pointer
= endc
;
4003 symbol_get_tc (sym
)->output
= 1;
4005 demand_empty_rest_of_line ();
4008 /* The .ref pseudo-op. It takes a list of symbol names and inserts R_REF
4009 relocations at the beginning of the current csect.
4011 (In principle, there's no reason why the relocations _have_ to be at
4012 the beginning. Anywhere in the csect would do. However, inserting
4013 at the beginning is what the native assmebler does, and it helps to
4014 deal with cases where the .ref statements follow the section contents.)
4016 ??? .refs don't work for empty .csects. However, the native assembler
4017 doesn't report an error in this case, and neither yet do we. */
4020 ppc_ref (int ignore ATTRIBUTE_UNUSED
)
4025 if (ppc_current_csect
== NULL
)
4027 as_bad (_(".ref outside .csect"));
4028 ignore_rest_of_line ();
4034 name
= input_line_pointer
;
4035 c
= get_symbol_end ();
4037 fix_at_start (symbol_get_frag (ppc_current_csect
), 0,
4038 symbol_find_or_make (name
), 0, FALSE
, BFD_RELOC_NONE
);
4040 *input_line_pointer
= c
;
4042 c
= *input_line_pointer
;
4045 input_line_pointer
++;
4047 if (is_end_of_line
[(unsigned char) *input_line_pointer
])
4049 as_bad (_("missing symbol name"));
4050 ignore_rest_of_line ();
4057 demand_empty_rest_of_line ();
4060 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
4061 although I don't know why it bothers. */
4064 ppc_rename (int ignore ATTRIBUTE_UNUSED
)
4071 name
= input_line_pointer
;
4072 endc
= get_symbol_end ();
4074 sym
= symbol_find_or_make (name
);
4076 *input_line_pointer
= endc
;
4078 if (*input_line_pointer
!= ',')
4080 as_bad (_("missing rename string"));
4081 ignore_rest_of_line ();
4084 ++input_line_pointer
;
4086 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
4088 demand_empty_rest_of_line ();
4091 /* The .stabx pseudo-op. This is similar to a normal .stabs
4092 pseudo-op, but slightly different. A sample is
4093 .stabx "main:F-1",.main,142,0
4094 The first argument is the symbol name to create. The second is the
4095 value, and the third is the storage class. The fourth seems to be
4096 always zero, and I am assuming it is the type. */
4099 ppc_stabx (int ignore ATTRIBUTE_UNUSED
)
4106 name
= demand_copy_C_string (&len
);
4108 if (*input_line_pointer
!= ',')
4110 as_bad (_("missing value"));
4113 ++input_line_pointer
;
4115 ppc_stab_symbol
= TRUE
;
4116 sym
= symbol_make (name
);
4117 ppc_stab_symbol
= FALSE
;
4119 symbol_get_tc (sym
)->real_name
= name
;
4121 (void) expression (&exp
);
4128 as_bad (_("illegal .stabx expression; zero assumed"));
4129 exp
.X_add_number
= 0;
4132 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
4133 symbol_set_frag (sym
, &zero_address_frag
);
4137 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
4138 symbol_set_value_expression (sym
, &exp
);
4142 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
4143 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
4148 /* The value is some complex expression. This will probably
4149 fail at some later point, but this is probably the right
4150 thing to do here. */
4151 symbol_set_value_expression (sym
, &exp
);
4155 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
4156 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4158 if (*input_line_pointer
!= ',')
4160 as_bad (_("missing class"));
4163 ++input_line_pointer
;
4165 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
4167 if (*input_line_pointer
!= ',')
4169 as_bad (_("missing type"));
4172 ++input_line_pointer
;
4174 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
4176 symbol_get_tc (sym
)->output
= 1;
4178 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
4183 .stabx "z",arrays_,133,0
4186 .comm arrays_,13768,3
4188 resolve_symbol_value will copy the exp's "within" into sym's when the
4189 offset is 0. Since this seems to be corner case problem,
4190 only do the correction for storage class C_STSYM. A better solution
4191 would be to have the tc field updated in ppc_symbol_new_hook. */
4193 if (exp
.X_op
== O_symbol
)
4195 if (ppc_current_block
== NULL
)
4196 as_bad (_(".stabx of storage class stsym must be within .bs/.es"));
4198 symbol_get_tc (sym
)->within
= ppc_current_block
;
4199 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
4203 if (exp
.X_op
!= O_symbol
4204 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
4205 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
4206 ppc_frob_label (sym
);
4209 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4210 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
4211 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
4212 symbol_get_tc (ppc_current_csect
)->within
= sym
;
4215 demand_empty_rest_of_line ();
4218 /* The .function pseudo-op. This takes several arguments. The first
4219 argument seems to be the external name of the symbol. The second
4220 argument seems to be the label for the start of the function. gcc
4221 uses the same name for both. I have no idea what the third and
4222 fourth arguments are meant to be. The optional fifth argument is
4223 an expression for the size of the function. In COFF this symbol
4224 gets an aux entry like that used for a csect. */
4227 ppc_function (int ignore ATTRIBUTE_UNUSED
)
4235 name
= input_line_pointer
;
4236 endc
= get_symbol_end ();
4238 /* Ignore any [PR] suffix. */
4239 name
= ppc_canonicalize_symbol_name (name
);
4240 s
= strchr (name
, '[');
4241 if (s
!= (char *) NULL
4242 && strcmp (s
+ 1, "PR]") == 0)
4245 ext_sym
= symbol_find_or_make (name
);
4247 *input_line_pointer
= endc
;
4249 if (*input_line_pointer
!= ',')
4251 as_bad (_("missing symbol name"));
4252 ignore_rest_of_line ();
4255 ++input_line_pointer
;
4257 name
= input_line_pointer
;
4258 endc
= get_symbol_end ();
4260 lab_sym
= symbol_find_or_make (name
);
4262 *input_line_pointer
= endc
;
4264 if (ext_sym
!= lab_sym
)
4268 exp
.X_op
= O_symbol
;
4269 exp
.X_add_symbol
= lab_sym
;
4270 exp
.X_op_symbol
= NULL
;
4271 exp
.X_add_number
= 0;
4273 symbol_set_value_expression (ext_sym
, &exp
);
4276 if (symbol_get_tc (ext_sym
)->symbol_class
== -1)
4277 symbol_get_tc (ext_sym
)->symbol_class
= XMC_PR
;
4278 symbol_get_tc (ext_sym
)->output
= 1;
4280 if (*input_line_pointer
== ',')
4284 /* Ignore the third argument. */
4285 ++input_line_pointer
;
4287 if (*input_line_pointer
== ',')
4289 /* Ignore the fourth argument. */
4290 ++input_line_pointer
;
4292 if (*input_line_pointer
== ',')
4294 /* The fifth argument is the function size. */
4295 ++input_line_pointer
;
4296 symbol_get_tc (ext_sym
)->u
.size
= symbol_new
4297 ("L0\001", absolute_section
,(valueT
) 0, &zero_address_frag
);
4298 pseudo_set (symbol_get_tc (ext_sym
)->u
.size
);
4303 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4304 SF_SET_FUNCTION (ext_sym
);
4305 SF_SET_PROCESS (ext_sym
);
4306 coff_add_linesym (ext_sym
);
4308 demand_empty_rest_of_line ();
4311 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
4312 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
4313 with the correct line number */
4315 static symbolS
*saved_bi_sym
= 0;
4318 ppc_bf (int ignore ATTRIBUTE_UNUSED
)
4322 sym
= symbol_make (".bf");
4323 S_SET_SEGMENT (sym
, text_section
);
4324 symbol_set_frag (sym
, frag_now
);
4325 S_SET_VALUE (sym
, frag_now_fix ());
4326 S_SET_STORAGE_CLASS (sym
, C_FCN
);
4328 coff_line_base
= get_absolute_expression ();
4330 S_SET_NUMBER_AUXILIARY (sym
, 1);
4331 SA_SET_SYM_LNNO (sym
, coff_line_base
);
4333 /* Line number for bi. */
4336 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
4341 symbol_get_tc (sym
)->output
= 1;
4343 ppc_frob_label (sym
);
4345 demand_empty_rest_of_line ();
4348 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
4349 ".ef", except that the line number is absolute, not relative to the
4350 most recent ".bf" symbol. */
4353 ppc_ef (int ignore ATTRIBUTE_UNUSED
)
4357 sym
= symbol_make (".ef");
4358 S_SET_SEGMENT (sym
, text_section
);
4359 symbol_set_frag (sym
, frag_now
);
4360 S_SET_VALUE (sym
, frag_now_fix ());
4361 S_SET_STORAGE_CLASS (sym
, C_FCN
);
4362 S_SET_NUMBER_AUXILIARY (sym
, 1);
4363 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
4364 symbol_get_tc (sym
)->output
= 1;
4366 ppc_frob_label (sym
);
4368 demand_empty_rest_of_line ();
4371 /* The .bi and .ei pseudo-ops. These take a string argument and
4372 generates a C_BINCL or C_EINCL symbol, which goes at the start of
4373 the symbol list. The value of .bi will be know when the next .bf
4379 static symbolS
*last_biei
;
4386 name
= demand_copy_C_string (&len
);
4388 /* The value of these symbols is actually file offset. Here we set
4389 the value to the index into the line number entries. In
4390 ppc_frob_symbols we set the fix_line field, which will cause BFD
4391 to do the right thing. */
4393 sym
= symbol_make (name
);
4394 /* obj-coff.c currently only handles line numbers correctly in the
4396 S_SET_SEGMENT (sym
, text_section
);
4397 S_SET_VALUE (sym
, coff_n_line_nos
);
4398 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4400 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
4401 symbol_get_tc (sym
)->output
= 1;
4409 for (look
= last_biei
? last_biei
: symbol_rootP
;
4410 (look
!= (symbolS
*) NULL
4411 && (S_GET_STORAGE_CLASS (look
) == C_FILE
4412 || S_GET_STORAGE_CLASS (look
) == C_BINCL
4413 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
4414 look
= symbol_next (look
))
4416 if (look
!= (symbolS
*) NULL
)
4418 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4419 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
4423 demand_empty_rest_of_line ();
4426 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
4427 There is one argument, which is a csect symbol. The value of the
4428 .bs symbol is the index of this csect symbol. */
4431 ppc_bs (int ignore ATTRIBUTE_UNUSED
)
4438 if (ppc_current_block
!= NULL
)
4439 as_bad (_("nested .bs blocks"));
4441 name
= input_line_pointer
;
4442 endc
= get_symbol_end ();
4444 csect
= symbol_find_or_make (name
);
4446 *input_line_pointer
= endc
;
4448 sym
= symbol_make (".bs");
4449 S_SET_SEGMENT (sym
, now_seg
);
4450 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
4451 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4452 symbol_get_tc (sym
)->output
= 1;
4454 symbol_get_tc (sym
)->within
= csect
;
4456 ppc_frob_label (sym
);
4458 ppc_current_block
= sym
;
4460 demand_empty_rest_of_line ();
4463 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
4466 ppc_es (int ignore ATTRIBUTE_UNUSED
)
4470 if (ppc_current_block
== NULL
)
4471 as_bad (_(".es without preceding .bs"));
4473 sym
= symbol_make (".es");
4474 S_SET_SEGMENT (sym
, now_seg
);
4475 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
4476 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4477 symbol_get_tc (sym
)->output
= 1;
4479 ppc_frob_label (sym
);
4481 ppc_current_block
= NULL
;
4483 demand_empty_rest_of_line ();
4486 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
4490 ppc_bb (int ignore ATTRIBUTE_UNUSED
)
4494 sym
= symbol_make (".bb");
4495 S_SET_SEGMENT (sym
, text_section
);
4496 symbol_set_frag (sym
, frag_now
);
4497 S_SET_VALUE (sym
, frag_now_fix ());
4498 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
4500 S_SET_NUMBER_AUXILIARY (sym
, 1);
4501 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
4503 symbol_get_tc (sym
)->output
= 1;
4505 SF_SET_PROCESS (sym
);
4507 ppc_frob_label (sym
);
4509 demand_empty_rest_of_line ();
4512 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
4516 ppc_eb (int ignore ATTRIBUTE_UNUSED
)
4520 sym
= symbol_make (".eb");
4521 S_SET_SEGMENT (sym
, text_section
);
4522 symbol_set_frag (sym
, frag_now
);
4523 S_SET_VALUE (sym
, frag_now_fix ());
4524 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
4525 S_SET_NUMBER_AUXILIARY (sym
, 1);
4526 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
4527 symbol_get_tc (sym
)->output
= 1;
4529 SF_SET_PROCESS (sym
);
4531 ppc_frob_label (sym
);
4533 demand_empty_rest_of_line ();
4536 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
4540 ppc_bc (int ignore ATTRIBUTE_UNUSED
)
4546 name
= demand_copy_C_string (&len
);
4547 sym
= symbol_make (name
);
4548 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
4549 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4550 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
4551 S_SET_VALUE (sym
, 0);
4552 symbol_get_tc (sym
)->output
= 1;
4554 ppc_frob_label (sym
);
4556 demand_empty_rest_of_line ();
4559 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
4562 ppc_ec (int ignore ATTRIBUTE_UNUSED
)
4566 sym
= symbol_make (".ec");
4567 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
4568 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
4569 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
4570 S_SET_VALUE (sym
, 0);
4571 symbol_get_tc (sym
)->output
= 1;
4573 ppc_frob_label (sym
);
4575 demand_empty_rest_of_line ();
4578 /* The .toc pseudo-op. Switch to the .toc subsegment. */
4581 ppc_toc (int ignore ATTRIBUTE_UNUSED
)
4583 if (ppc_toc_csect
!= (symbolS
*) NULL
)
4584 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
4591 subseg
= ppc_data_subsegment
;
4592 ++ppc_data_subsegment
;
4594 subseg_new (segment_name (data_section
), subseg
);
4595 ppc_toc_frag
= frag_now
;
4597 sym
= symbol_find_or_make ("TOC[TC0]");
4598 symbol_set_frag (sym
, frag_now
);
4599 S_SET_SEGMENT (sym
, data_section
);
4600 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
4601 symbol_get_tc (sym
)->subseg
= subseg
;
4602 symbol_get_tc (sym
)->output
= 1;
4603 symbol_get_tc (sym
)->within
= sym
;
4605 ppc_toc_csect
= sym
;
4607 for (list
= ppc_data_csects
;
4608 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
4609 list
= symbol_get_tc (list
)->next
)
4611 symbol_get_tc (list
)->next
= sym
;
4613 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4614 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
4618 ppc_current_csect
= ppc_toc_csect
;
4620 demand_empty_rest_of_line ();
4623 /* The AIX assembler automatically aligns the operands of a .long or
4624 .short pseudo-op, and we want to be compatible. */
4627 ppc_xcoff_cons (int log_size
)
4629 frag_align (log_size
, 0, 0);
4630 record_alignment (now_seg
, log_size
);
4631 cons (1 << log_size
);
4635 ppc_vbyte (int dummy ATTRIBUTE_UNUSED
)
4640 (void) expression (&exp
);
4642 if (exp
.X_op
!= O_constant
)
4644 as_bad (_("non-constant byte count"));
4648 byte_count
= exp
.X_add_number
;
4650 if (*input_line_pointer
!= ',')
4652 as_bad (_("missing value"));
4656 ++input_line_pointer
;
4661 ppc_xcoff_end (void)
4665 for (i
= 0; i
< XCOFF_DWSECT_NBR_NAMES
; i
++)
4667 struct dw_section
*dws
= &dw_sections
[i
];
4668 struct dw_subsection
*dwss
;
4670 if (dws
->anon_subseg
)
4672 dwss
= dws
->anon_subseg
;
4673 dwss
->link
= dws
->list_subseg
;
4676 dwss
= dws
->list_subseg
;
4678 for (; dwss
!= NULL
; dwss
= dwss
->link
)
4679 if (dwss
->end_exp
.X_add_symbol
!= NULL
)
4681 subseg_set (dws
->sect
, dwss
->subseg
);
4682 symbol_set_value_now (dwss
->end_exp
.X_add_symbol
);
4687 #endif /* OBJ_XCOFF */
4688 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
4690 /* The .tc pseudo-op. This is used when generating either XCOFF or
4691 ELF. This takes two or more arguments.
4693 When generating XCOFF output, the first argument is the name to
4694 give to this location in the toc; this will be a symbol with class
4695 TC. The rest of the arguments are N-byte values to actually put at
4696 this location in the TOC; often there is just one more argument, a
4697 relocatable symbol reference. The size of the value to store
4698 depends on target word size. A 32-bit target uses 4-byte values, a
4699 64-bit target uses 8-byte values.
4701 When not generating XCOFF output, the arguments are the same, but
4702 the first argument is simply ignored. */
4705 ppc_tc (int ignore ATTRIBUTE_UNUSED
)
4709 /* Define the TOC symbol name. */
4715 if (ppc_toc_csect
== (symbolS
*) NULL
4716 || ppc_toc_csect
!= ppc_current_csect
)
4718 as_bad (_(".tc not in .toc section"));
4719 ignore_rest_of_line ();
4723 name
= input_line_pointer
;
4724 endc
= get_symbol_end ();
4726 sym
= symbol_find_or_make (name
);
4728 *input_line_pointer
= endc
;
4730 if (S_IS_DEFINED (sym
))
4734 label
= symbol_get_tc (ppc_current_csect
)->within
;
4735 if (symbol_get_tc (label
)->symbol_class
!= XMC_TC0
)
4737 as_bad (_(".tc with no label"));
4738 ignore_rest_of_line ();
4742 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
4743 symbol_set_frag (label
, symbol_get_frag (sym
));
4744 S_SET_VALUE (label
, S_GET_VALUE (sym
));
4746 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
4747 ++input_line_pointer
;
4752 S_SET_SEGMENT (sym
, now_seg
);
4753 symbol_set_frag (sym
, frag_now
);
4754 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
4755 symbol_get_tc (sym
)->symbol_class
= XMC_TC
;
4756 symbol_get_tc (sym
)->output
= 1;
4758 ppc_frob_label (sym
);
4761 #endif /* OBJ_XCOFF */
4765 /* Skip the TOC symbol name. */
4766 while (is_part_of_name (*input_line_pointer
)
4767 || *input_line_pointer
== ' '
4768 || *input_line_pointer
== '['
4769 || *input_line_pointer
== ']'
4770 || *input_line_pointer
== '{'
4771 || *input_line_pointer
== '}')
4772 ++input_line_pointer
;
4774 /* Align to a four/eight byte boundary. */
4775 align
= ppc_obj64
? 3 : 2;
4776 frag_align (align
, 0, 0);
4777 record_alignment (now_seg
, align
);
4778 #endif /* OBJ_ELF */
4780 if (*input_line_pointer
!= ',')
4781 demand_empty_rest_of_line ();
4784 ++input_line_pointer
;
4785 cons (ppc_obj64
? 8 : 4);
4789 /* Pseudo-op .machine. */
4792 ppc_machine (int ignore ATTRIBUTE_UNUSED
)
4795 #define MAX_HISTORY 100
4796 static ppc_cpu_t
*cpu_history
;
4797 static int curr_hist
;
4801 if (*input_line_pointer
== '"')
4804 cpu_string
= demand_copy_C_string (&len
);
4809 cpu_string
= input_line_pointer
;
4810 c
= get_symbol_end ();
4811 cpu_string
= xstrdup (cpu_string
);
4812 *input_line_pointer
= c
;
4815 if (cpu_string
!= NULL
)
4817 ppc_cpu_t old_cpu
= ppc_cpu
;
4821 for (p
= cpu_string
; *p
!= 0; p
++)
4824 if (strcmp (cpu_string
, "push") == 0)
4826 if (cpu_history
== NULL
)
4827 cpu_history
= xmalloc (MAX_HISTORY
* sizeof (*cpu_history
));
4829 if (curr_hist
>= MAX_HISTORY
)
4830 as_bad (_(".machine stack overflow"));
4832 cpu_history
[curr_hist
++] = ppc_cpu
;
4834 else if (strcmp (cpu_string
, "pop") == 0)
4837 as_bad (_(".machine stack underflow"));
4839 ppc_cpu
= cpu_history
[--curr_hist
];
4841 else if ((new_cpu
= ppc_parse_cpu (ppc_cpu
, cpu_string
)) != 0)
4844 as_bad (_("invalid machine `%s'"), cpu_string
);
4846 if (ppc_cpu
!= old_cpu
)
4847 ppc_setup_opcodes ();
4850 demand_empty_rest_of_line ();
4853 /* See whether a symbol is in the TOC section. */
4856 ppc_is_toc_sym (symbolS
*sym
)
4859 return symbol_get_tc (sym
)->symbol_class
== XMC_TC
;
4862 const char *sname
= segment_name (S_GET_SEGMENT (sym
));
4864 return strcmp (sname
, ".toc") == 0;
4866 return strcmp (sname
, ".got") == 0;
4869 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4873 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4875 /* Set the current section. */
4877 ppc_set_current_section (segT
new)
4879 ppc_previous_section
= ppc_current_section
;
4880 ppc_current_section
= new;
4883 /* pseudo-op: .previous
4884 behaviour: toggles the current section with the previous section.
4886 warnings: "No previous section" */
4889 ppc_previous (int ignore ATTRIBUTE_UNUSED
)
4893 if (ppc_previous_section
== NULL
)
4895 as_warn (_("no previous section to return to, ignored."));
4899 subseg_set (ppc_previous_section
, 0);
4901 ppc_set_current_section (ppc_previous_section
);
4904 /* pseudo-op: .pdata
4905 behaviour: predefined read only data section
4909 initial: .section .pdata "adr3"
4910 a - don't know -- maybe a misprint
4911 d - initialized data
4913 3 - double word aligned (that would be 4 byte boundary)
4916 Tag index tables (also known as the function table) for exception
4917 handling, debugging, etc. */
4920 ppc_pdata (int ignore ATTRIBUTE_UNUSED
)
4922 if (pdata_section
== 0)
4924 pdata_section
= subseg_new (".pdata", 0);
4926 bfd_set_section_flags (stdoutput
, pdata_section
,
4927 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4928 | SEC_READONLY
| SEC_DATA
));
4930 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
4934 pdata_section
= subseg_new (".pdata", 0);
4936 ppc_set_current_section (pdata_section
);
4939 /* pseudo-op: .ydata
4940 behaviour: predefined read only data section
4944 initial: .section .ydata "drw3"
4945 a - don't know -- maybe a misprint
4946 d - initialized data
4948 3 - double word aligned (that would be 4 byte boundary)
4950 Tag tables (also known as the scope table) for exception handling,
4954 ppc_ydata (int ignore ATTRIBUTE_UNUSED
)
4956 if (ydata_section
== 0)
4958 ydata_section
= subseg_new (".ydata", 0);
4959 bfd_set_section_flags (stdoutput
, ydata_section
,
4960 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4961 | SEC_READONLY
| SEC_DATA
));
4963 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
4967 ydata_section
= subseg_new (".ydata", 0);
4969 ppc_set_current_section (ydata_section
);
4972 /* pseudo-op: .reldata
4973 behaviour: predefined read write data section
4974 double word aligned (4-byte)
4975 FIXME: relocation is applied to it
4976 FIXME: what's the difference between this and .data?
4979 initial: .section .reldata "drw3"
4980 d - initialized data
4983 3 - double word aligned (that would be 8 byte boundary)
4986 Like .data, but intended to hold data subject to relocation, such as
4987 function descriptors, etc. */
4990 ppc_reldata (int ignore ATTRIBUTE_UNUSED
)
4992 if (reldata_section
== 0)
4994 reldata_section
= subseg_new (".reldata", 0);
4996 bfd_set_section_flags (stdoutput
, reldata_section
,
4997 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5000 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
5004 reldata_section
= subseg_new (".reldata", 0);
5006 ppc_set_current_section (reldata_section
);
5009 /* pseudo-op: .rdata
5010 behaviour: predefined read only data section
5014 initial: .section .rdata "dr3"
5015 d - initialized data
5017 3 - double word aligned (that would be 4 byte boundary) */
5020 ppc_rdata (int ignore ATTRIBUTE_UNUSED
)
5022 if (rdata_section
== 0)
5024 rdata_section
= subseg_new (".rdata", 0);
5025 bfd_set_section_flags (stdoutput
, rdata_section
,
5026 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5027 | SEC_READONLY
| SEC_DATA
));
5029 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
5033 rdata_section
= subseg_new (".rdata", 0);
5035 ppc_set_current_section (rdata_section
);
5038 /* pseudo-op: .ualong
5039 behaviour: much like .int, with the exception that no alignment is
5041 FIXME: test the alignment statement
5046 ppc_ualong (int ignore ATTRIBUTE_UNUSED
)
5052 /* pseudo-op: .znop <symbol name>
5053 behaviour: Issue a nop instruction
5054 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
5055 the supplied symbol name.
5057 warnings: Missing symbol name */
5060 ppc_znop (int ignore ATTRIBUTE_UNUSED
)
5063 const struct powerpc_opcode
*opcode
;
5074 /* Strip out the symbol name. */
5075 symbol_name
= input_line_pointer
;
5076 c
= get_symbol_end ();
5078 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
5079 strcpy (name
, symbol_name
);
5081 sym
= symbol_find_or_make (name
);
5083 *input_line_pointer
= c
;
5087 /* Look up the opcode in the hash table. */
5088 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
5090 /* Stick in the nop. */
5091 insn
= opcode
->opcode
;
5093 /* Write out the instruction. */
5095 md_number_to_chars (f
, insn
, 4);
5097 f
- frag_now
->fr_literal
,
5102 BFD_RELOC_16_GOT_PCREL
);
5112 ppc_pe_comm (int lcomm
)
5121 name
= input_line_pointer
;
5122 c
= get_symbol_end ();
5124 /* just after name is now '\0'. */
5125 p
= input_line_pointer
;
5128 if (*input_line_pointer
!= ',')
5130 as_bad (_("expected comma after symbol-name: rest of line ignored."));
5131 ignore_rest_of_line ();
5135 input_line_pointer
++; /* skip ',' */
5136 if ((temp
= get_absolute_expression ()) < 0)
5138 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
5139 ignore_rest_of_line ();
5145 /* The third argument to .comm is the alignment. */
5146 if (*input_line_pointer
!= ',')
5150 ++input_line_pointer
;
5151 align
= get_absolute_expression ();
5154 as_warn (_("ignoring bad alignment"));
5161 symbolP
= symbol_find_or_make (name
);
5164 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
5166 as_bad (_("ignoring attempt to re-define symbol `%s'."),
5167 S_GET_NAME (symbolP
));
5168 ignore_rest_of_line ();
5172 if (S_GET_VALUE (symbolP
))
5174 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
5175 as_bad (_("length of .comm \"%s\" is already %ld. Not changed to %ld."),
5176 S_GET_NAME (symbolP
),
5177 (long) S_GET_VALUE (symbolP
),
5182 S_SET_VALUE (symbolP
, (valueT
) temp
);
5183 S_SET_EXTERNAL (symbolP
);
5184 S_SET_SEGMENT (symbolP
, bfd_com_section_ptr
);
5187 demand_empty_rest_of_line ();
5191 * implement the .section pseudo op:
5192 * .section name {, "flags"}
5194 * | +--- optional flags: 'b' for bss
5196 * +-- section name 'l' for lib
5200 * 'd' (apparently m88k for data)
5202 * But if the argument is not a quoted string, treat it as a
5203 * subsegment number.
5205 * FIXME: this is a copy of the section processing from obj-coff.c, with
5206 * additions/changes for the moto-pas assembler support. There are three
5209 * FIXME: I just noticed this. This doesn't work at all really. It it
5210 * setting bits that bfd probably neither understands or uses. The
5211 * correct approach (?) will have to incorporate extra fields attached
5212 * to the section to hold the system specific stuff. (krk)
5215 * 'a' - unknown - referred to in documentation, but no definition supplied
5216 * 'c' - section has code
5217 * 'd' - section has initialized data
5218 * 'u' - section has uninitialized data
5219 * 'i' - section contains directives (info)
5220 * 'n' - section can be discarded
5221 * 'R' - remove section at link time
5223 * Section Protection:
5224 * 'r' - section is readable
5225 * 'w' - section is writeable
5226 * 'x' - section is executable
5227 * 's' - section is sharable
5229 * Section Alignment:
5230 * '0' - align to byte boundary
5231 * '1' - align to halfword undary
5232 * '2' - align to word boundary
5233 * '3' - align to doubleword boundary
5234 * '4' - align to quadword boundary
5235 * '5' - align to 32 byte boundary
5236 * '6' - align to 64 byte boundary
5241 ppc_pe_section (int ignore ATTRIBUTE_UNUSED
)
5243 /* Strip out the section name. */
5252 section_name
= input_line_pointer
;
5253 c
= get_symbol_end ();
5255 name
= xmalloc (input_line_pointer
- section_name
+ 1);
5256 strcpy (name
, section_name
);
5258 *input_line_pointer
= c
;
5263 flags
= SEC_NO_FLAGS
;
5265 if (strcmp (name
, ".idata$2") == 0)
5269 else if (strcmp (name
, ".idata$3") == 0)
5273 else if (strcmp (name
, ".idata$4") == 0)
5277 else if (strcmp (name
, ".idata$5") == 0)
5281 else if (strcmp (name
, ".idata$6") == 0)
5286 /* Default alignment to 16 byte boundary. */
5289 if (*input_line_pointer
== ',')
5291 ++input_line_pointer
;
5293 if (*input_line_pointer
!= '"')
5294 exp
= get_absolute_expression ();
5297 ++input_line_pointer
;
5298 while (*input_line_pointer
!= '"'
5299 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
5301 switch (*input_line_pointer
)
5303 /* Section Contents */
5304 case 'a': /* unknown */
5305 as_bad (_("unsupported section attribute -- 'a'"));
5307 case 'c': /* code section */
5310 case 'd': /* section has initialized data */
5313 case 'u': /* section has uninitialized data */
5314 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
5318 case 'i': /* section contains directives (info) */
5319 /* FIXME: This is IMAGE_SCN_LNK_INFO
5321 flags
|= SEC_HAS_CONTENTS
;
5323 case 'n': /* section can be discarded */
5326 case 'R': /* Remove section at link time */
5327 flags
|= SEC_NEVER_LOAD
;
5329 #if IFLICT_BRAIN_DAMAGE
5330 /* Section Protection */
5331 case 'r': /* section is readable */
5332 flags
|= IMAGE_SCN_MEM_READ
;
5334 case 'w': /* section is writeable */
5335 flags
|= IMAGE_SCN_MEM_WRITE
;
5337 case 'x': /* section is executable */
5338 flags
|= IMAGE_SCN_MEM_EXECUTE
;
5340 case 's': /* section is sharable */
5341 flags
|= IMAGE_SCN_MEM_SHARED
;
5344 /* Section Alignment */
5345 case '0': /* align to byte boundary */
5346 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
5349 case '1': /* align to halfword boundary */
5350 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
5353 case '2': /* align to word boundary */
5354 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
5357 case '3': /* align to doubleword boundary */
5358 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
5361 case '4': /* align to quadword boundary */
5362 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
5365 case '5': /* align to 32 byte boundary */
5366 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
5369 case '6': /* align to 64 byte boundary */
5370 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
5375 as_bad (_("unknown section attribute '%c'"),
5376 *input_line_pointer
);
5379 ++input_line_pointer
;
5381 if (*input_line_pointer
== '"')
5382 ++input_line_pointer
;
5386 sec
= subseg_new (name
, (subsegT
) exp
);
5388 ppc_set_current_section (sec
);
5390 if (flags
!= SEC_NO_FLAGS
)
5392 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
5393 as_bad (_("error setting flags for \"%s\": %s"),
5394 bfd_section_name (stdoutput
, sec
),
5395 bfd_errmsg (bfd_get_error ()));
5398 bfd_set_section_alignment (stdoutput
, sec
, align
);
5402 ppc_pe_function (int ignore ATTRIBUTE_UNUSED
)
5408 name
= input_line_pointer
;
5409 endc
= get_symbol_end ();
5411 ext_sym
= symbol_find_or_make (name
);
5413 *input_line_pointer
= endc
;
5415 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
5416 SF_SET_FUNCTION (ext_sym
);
5417 SF_SET_PROCESS (ext_sym
);
5418 coff_add_linesym (ext_sym
);
5420 demand_empty_rest_of_line ();
5424 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED
)
5426 if (tocdata_section
== 0)
5428 tocdata_section
= subseg_new (".tocd", 0);
5429 /* FIXME: section flags won't work. */
5430 bfd_set_section_flags (stdoutput
, tocdata_section
,
5431 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
5432 | SEC_READONLY
| SEC_DATA
));
5434 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
5438 rdata_section
= subseg_new (".tocd", 0);
5441 ppc_set_current_section (tocdata_section
);
5443 demand_empty_rest_of_line ();
5446 /* Don't adjust TOC relocs to use the section symbol. */
5449 ppc_pe_fix_adjustable (fixS
*fix
)
5451 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
5458 /* XCOFF specific symbol and file handling. */
5460 /* Canonicalize the symbol name. We use the to force the suffix, if
5461 any, to use square brackets, and to be in upper case. */
5464 ppc_canonicalize_symbol_name (char *name
)
5468 if (ppc_stab_symbol
)
5471 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
5485 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
5488 if (*s
== '\0' || s
[1] != '\0')
5489 as_bad (_("bad symbol suffix"));
5497 /* Set the class of a symbol based on the suffix, if any. This is
5498 called whenever a new symbol is created. */
5501 ppc_symbol_new_hook (symbolS
*sym
)
5503 struct ppc_tc_sy
*tc
;
5506 tc
= symbol_get_tc (sym
);
5509 tc
->symbol_class
= -1;
5510 tc
->real_name
= NULL
;
5517 if (ppc_stab_symbol
)
5520 s
= strchr (S_GET_NAME (sym
), '[');
5521 if (s
== (const char *) NULL
)
5523 /* There is no suffix. */
5532 if (strcmp (s
, "BS]") == 0)
5533 tc
->symbol_class
= XMC_BS
;
5536 if (strcmp (s
, "DB]") == 0)
5537 tc
->symbol_class
= XMC_DB
;
5538 else if (strcmp (s
, "DS]") == 0)
5539 tc
->symbol_class
= XMC_DS
;
5542 if (strcmp (s
, "GL]") == 0)
5543 tc
->symbol_class
= XMC_GL
;
5546 if (strcmp (s
, "PR]") == 0)
5547 tc
->symbol_class
= XMC_PR
;
5550 if (strcmp (s
, "RO]") == 0)
5551 tc
->symbol_class
= XMC_RO
;
5552 else if (strcmp (s
, "RW]") == 0)
5553 tc
->symbol_class
= XMC_RW
;
5556 if (strcmp (s
, "SV]") == 0)
5557 tc
->symbol_class
= XMC_SV
;
5560 if (strcmp (s
, "TC]") == 0)
5561 tc
->symbol_class
= XMC_TC
;
5562 else if (strcmp (s
, "TI]") == 0)
5563 tc
->symbol_class
= XMC_TI
;
5564 else if (strcmp (s
, "TB]") == 0)
5565 tc
->symbol_class
= XMC_TB
;
5566 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
5567 tc
->symbol_class
= XMC_TC0
;
5570 if (strcmp (s
, "UA]") == 0)
5571 tc
->symbol_class
= XMC_UA
;
5572 else if (strcmp (s
, "UC]") == 0)
5573 tc
->symbol_class
= XMC_UC
;
5576 if (strcmp (s
, "XO]") == 0)
5577 tc
->symbol_class
= XMC_XO
;
5581 if (tc
->symbol_class
== -1)
5582 as_bad (_("unrecognized symbol suffix"));
5585 /* Set the class of a label based on where it is defined. This
5586 handles symbols without suffixes. Also, move the symbol so that it
5587 follows the csect symbol. */
5590 ppc_frob_label (symbolS
*sym
)
5592 if (ppc_current_csect
!= (symbolS
*) NULL
)
5594 if (symbol_get_tc (sym
)->symbol_class
== -1)
5595 symbol_get_tc (sym
)->symbol_class
= symbol_get_tc (ppc_current_csect
)->symbol_class
;
5597 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
5598 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
5599 &symbol_rootP
, &symbol_lastP
);
5600 symbol_get_tc (ppc_current_csect
)->within
= sym
;
5601 symbol_get_tc (sym
)->within
= ppc_current_csect
;
5605 dwarf2_emit_label (sym
);
5609 /* This variable is set by ppc_frob_symbol if any absolute symbols are
5610 seen. It tells ppc_adjust_symtab whether it needs to look through
5613 static bfd_boolean ppc_saw_abs
;
5615 /* Change the name of a symbol just before writing it out. Set the
5616 real name if the .rename pseudo-op was used. Otherwise, remove any
5617 class suffix. Return 1 if the symbol should not be included in the
5621 ppc_frob_symbol (symbolS
*sym
)
5623 static symbolS
*ppc_last_function
;
5624 static symbolS
*set_end
;
5626 /* Discard symbols that should not be included in the output symbol
5628 if (! symbol_used_in_reloc_p (sym
)
5629 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
5630 || (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
5631 && ! symbol_get_tc (sym
)->output
5632 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
5635 /* This one will disappear anyway. Don't make a csect sym for it. */
5636 if (sym
== abs_section_sym
)
5639 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
5640 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
5646 name
= S_GET_NAME (sym
);
5647 s
= strchr (name
, '[');
5648 if (s
!= (char *) NULL
)
5654 snew
= xmalloc (len
+ 1);
5655 memcpy (snew
, name
, len
);
5658 S_SET_NAME (sym
, snew
);
5662 if (set_end
!= (symbolS
*) NULL
)
5664 SA_SET_SYM_ENDNDX (set_end
, sym
);
5668 if (SF_GET_FUNCTION (sym
))
5670 if (ppc_last_function
!= (symbolS
*) NULL
)
5671 as_bad (_("two .function pseudo-ops with no intervening .ef"));
5672 ppc_last_function
= sym
;
5673 if (symbol_get_tc (sym
)->u
.size
!= (symbolS
*) NULL
)
5675 resolve_symbol_value (symbol_get_tc (sym
)->u
.size
);
5676 SA_SET_SYM_FSIZE (sym
,
5677 (long) S_GET_VALUE (symbol_get_tc (sym
)->u
.size
));
5680 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
5681 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
5683 if (ppc_last_function
== (symbolS
*) NULL
)
5684 as_bad (_(".ef with no preceding .function"));
5687 set_end
= ppc_last_function
;
5688 ppc_last_function
= NULL
;
5690 /* We don't have a C_EFCN symbol, but we need to force the
5691 COFF backend to believe that it has seen one. */
5692 coff_last_function
= NULL
;
5696 if (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
5697 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
5698 && S_GET_STORAGE_CLASS (sym
) != C_FILE
5699 && S_GET_STORAGE_CLASS (sym
) != C_FCN
5700 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
5701 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
5702 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
5703 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
5704 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
5705 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
5706 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
5708 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
5709 || S_GET_STORAGE_CLASS (sym
) == C_AIX_WEAKEXT
5710 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
5713 union internal_auxent
*a
;
5715 /* Create a csect aux. */
5716 i
= S_GET_NUMBER_AUXILIARY (sym
);
5717 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
5718 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
5719 if (symbol_get_tc (sym
)->symbol_class
== XMC_TC0
)
5721 /* This is the TOC table. */
5722 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
5723 a
->x_csect
.x_scnlen
.l
= 0;
5724 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5726 else if (symbol_get_tc (sym
)->subseg
!= 0)
5728 /* This is a csect symbol. x_scnlen is the size of the
5730 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
5731 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5732 S_GET_SEGMENT (sym
))
5733 - S_GET_VALUE (sym
));
5736 resolve_symbol_value (symbol_get_tc (sym
)->next
);
5737 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
5738 - S_GET_VALUE (sym
));
5740 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
5742 else if (S_GET_SEGMENT (sym
) == bss_section
)
5744 /* This is a common symbol. */
5745 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
5746 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
5747 if (S_IS_EXTERNAL (sym
))
5748 symbol_get_tc (sym
)->symbol_class
= XMC_RW
;
5750 symbol_get_tc (sym
)->symbol_class
= XMC_BS
;
5752 else if (S_GET_SEGMENT (sym
) == absolute_section
)
5754 /* This is an absolute symbol. The csect will be created by
5755 ppc_adjust_symtab. */
5757 a
->x_csect
.x_smtyp
= XTY_LD
;
5758 if (symbol_get_tc (sym
)->symbol_class
== -1)
5759 symbol_get_tc (sym
)->symbol_class
= XMC_XO
;
5761 else if (! S_IS_DEFINED (sym
))
5763 /* This is an external symbol. */
5764 a
->x_csect
.x_scnlen
.l
= 0;
5765 a
->x_csect
.x_smtyp
= XTY_ER
;
5767 else if (symbol_get_tc (sym
)->symbol_class
== XMC_TC
)
5771 /* This is a TOC definition. x_scnlen is the size of the
5773 next
= symbol_next (sym
);
5774 while (symbol_get_tc (next
)->symbol_class
== XMC_TC0
)
5775 next
= symbol_next (next
);
5776 if (next
== (symbolS
*) NULL
5777 || symbol_get_tc (next
)->symbol_class
!= XMC_TC
)
5779 if (ppc_after_toc_frag
== (fragS
*) NULL
)
5780 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5782 - S_GET_VALUE (sym
));
5784 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
5785 - S_GET_VALUE (sym
));
5789 resolve_symbol_value (next
);
5790 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
5791 - S_GET_VALUE (sym
));
5793 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5799 /* This is a normal symbol definition. x_scnlen is the
5800 symbol index of the containing csect. */
5801 if (S_GET_SEGMENT (sym
) == text_section
)
5802 csect
= ppc_text_csects
;
5803 else if (S_GET_SEGMENT (sym
) == data_section
)
5804 csect
= ppc_data_csects
;
5808 /* Skip the initial dummy symbol. */
5809 csect
= symbol_get_tc (csect
)->next
;
5811 if (csect
== (symbolS
*) NULL
)
5813 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
5814 a
->x_csect
.x_scnlen
.l
= 0;
5818 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
5820 resolve_symbol_value (symbol_get_tc (csect
)->next
);
5821 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
5822 > S_GET_VALUE (sym
))
5824 csect
= symbol_get_tc (csect
)->next
;
5827 a
->x_csect
.x_scnlen
.p
=
5828 coffsymbol (symbol_get_bfdsym (csect
))->native
;
5829 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
5832 a
->x_csect
.x_smtyp
= XTY_LD
;
5835 a
->x_csect
.x_parmhash
= 0;
5836 a
->x_csect
.x_snhash
= 0;
5837 if (symbol_get_tc (sym
)->symbol_class
== -1)
5838 a
->x_csect
.x_smclas
= XMC_PR
;
5840 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->symbol_class
;
5841 a
->x_csect
.x_stab
= 0;
5842 a
->x_csect
.x_snstab
= 0;
5844 /* Don't let the COFF backend resort these symbols. */
5845 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
5847 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
5849 /* We want the value to be the symbol index of the referenced
5850 csect symbol. BFD will do that for us if we set the right
5852 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
5853 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
5855 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
5856 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
5858 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
5863 block
= symbol_get_tc (sym
)->within
;
5866 /* The value is the offset from the enclosing csect. */
5869 csect
= symbol_get_tc (block
)->within
;
5870 resolve_symbol_value (csect
);
5871 base
= S_GET_VALUE (csect
);
5876 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - base
);
5878 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
5879 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
5881 /* We want the value to be a file offset into the line numbers.
5882 BFD will do that for us if we set the right flags. We have
5883 already set the value correctly. */
5884 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
5890 /* Adjust the symbol table. This creates csect symbols for all
5891 absolute symbols. */
5894 ppc_adjust_symtab (void)
5901 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
5905 union internal_auxent
*a
;
5907 if (S_GET_SEGMENT (sym
) != absolute_section
)
5910 csect
= symbol_create (".abs[XO]", absolute_section
,
5911 S_GET_VALUE (sym
), &zero_address_frag
);
5912 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
5913 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
5914 i
= S_GET_NUMBER_AUXILIARY (csect
);
5915 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
5916 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
5917 a
->x_csect
.x_scnlen
.l
= 0;
5918 a
->x_csect
.x_smtyp
= XTY_SD
;
5919 a
->x_csect
.x_parmhash
= 0;
5920 a
->x_csect
.x_snhash
= 0;
5921 a
->x_csect
.x_smclas
= XMC_XO
;
5922 a
->x_csect
.x_stab
= 0;
5923 a
->x_csect
.x_snstab
= 0;
5925 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
5927 i
= S_GET_NUMBER_AUXILIARY (sym
);
5928 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
5929 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
5930 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
5933 ppc_saw_abs
= FALSE
;
5936 /* Set the VMA for a section. This is called on all the sections in
5940 ppc_frob_section (asection
*sec
)
5942 static bfd_vma vma
= 0;
5944 /* Dwarf sections start at 0. */
5945 if (bfd_get_section_flags (NULL
, sec
) & SEC_DEBUGGING
)
5948 vma
= md_section_align (sec
, vma
);
5949 bfd_set_section_vma (stdoutput
, sec
, vma
);
5950 vma
+= bfd_section_size (stdoutput
, sec
);
5953 #endif /* OBJ_XCOFF */
5956 md_atof (int type
, char *litp
, int *sizep
)
5958 return ieee_md_atof (type
, litp
, sizep
, target_big_endian
);
5961 /* Write a value out to the object file, using the appropriate
5965 md_number_to_chars (char *buf
, valueT val
, int n
)
5967 if (target_big_endian
)
5968 number_to_chars_bigendian (buf
, val
, n
);
5970 number_to_chars_littleendian (buf
, val
, n
);
5973 /* Align a section (I don't know why this is machine dependent). */
5976 md_section_align (asection
*seg ATTRIBUTE_UNUSED
, valueT addr
)
5981 int align
= bfd_get_section_alignment (stdoutput
, seg
);
5983 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
5987 /* We don't have any form of relaxing. */
5990 md_estimate_size_before_relax (fragS
*fragp ATTRIBUTE_UNUSED
,
5991 asection
*seg ATTRIBUTE_UNUSED
)
5997 /* Convert a machine dependent frag. We never generate these. */
6000 md_convert_frag (bfd
*abfd ATTRIBUTE_UNUSED
,
6001 asection
*sec ATTRIBUTE_UNUSED
,
6002 fragS
*fragp ATTRIBUTE_UNUSED
)
6007 /* We have no need to default values of symbols. */
6010 md_undefined_symbol (char *name ATTRIBUTE_UNUSED
)
6015 /* Functions concerning relocs. */
6017 /* The location from which a PC relative jump should be calculated,
6018 given a PC relative reloc. */
6021 md_pcrel_from_section (fixS
*fixp
, segT sec ATTRIBUTE_UNUSED
)
6023 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6028 /* This is called to see whether a fixup should be adjusted to use a
6029 section symbol. We take the opportunity to change a fixup against
6030 a symbol in the TOC subsegment into a reloc against the
6031 corresponding .tc symbol. */
6034 ppc_fix_adjustable (fixS
*fix
)
6036 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
6037 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
6038 TC_SYMFIELD_TYPE
*tc
;
6040 if (symseg
== absolute_section
)
6043 /* Always adjust symbols in debugging sections. */
6044 if (bfd_get_section_flags (stdoutput
, symseg
) & SEC_DEBUGGING
)
6047 if (ppc_toc_csect
!= (symbolS
*) NULL
6048 && fix
->fx_addsy
!= ppc_toc_csect
6049 && symseg
== data_section
6050 && val
>= ppc_toc_frag
->fr_address
6051 && (ppc_after_toc_frag
== (fragS
*) NULL
6052 || val
< ppc_after_toc_frag
->fr_address
))
6056 for (sy
= symbol_next (ppc_toc_csect
);
6057 sy
!= (symbolS
*) NULL
;
6058 sy
= symbol_next (sy
))
6060 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
6062 if (sy_tc
->symbol_class
== XMC_TC0
)
6064 if (sy_tc
->symbol_class
!= XMC_TC
)
6066 if (val
== resolve_symbol_value (sy
))
6069 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
6074 as_bad_where (fix
->fx_file
, fix
->fx_line
,
6075 _("symbol in .toc does not match any .tc"));
6078 /* Possibly adjust the reloc to be against the csect. */
6079 tc
= symbol_get_tc (fix
->fx_addsy
);
6081 && tc
->symbol_class
!= XMC_TC0
6082 && tc
->symbol_class
!= XMC_TC
6083 && symseg
!= bss_section
6084 /* Don't adjust if this is a reloc in the toc section. */
6085 && (symseg
!= data_section
6086 || ppc_toc_csect
== NULL
6087 || val
< ppc_toc_frag
->fr_address
6088 || (ppc_after_toc_frag
!= NULL
6089 && val
>= ppc_after_toc_frag
->fr_address
)))
6091 symbolS
*csect
= tc
->within
;
6093 /* If the symbol was not declared by a label (eg: a section symbol),
6094 use the section instead of the csect. This doesn't happen in
6095 normal AIX assembly code. */
6097 csect
= seg_info (symseg
)->sym
;
6099 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
6100 fix
->fx_addsy
= csect
;
6105 /* Adjust a reloc against a .lcomm symbol to be against the base
6107 if (symseg
== bss_section
6108 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
6110 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
6112 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
6119 /* A reloc from one csect to another must be kept. The assembler
6120 will, of course, keep relocs between sections, and it will keep
6121 absolute relocs, but we need to force it to keep PC relative relocs
6122 between two csects in the same section. */
6125 ppc_force_relocation (fixS
*fix
)
6127 /* At this point fix->fx_addsy should already have been converted to
6128 a csect symbol. If the csect does not include the fragment, then
6129 we need to force the relocation. */
6131 && fix
->fx_addsy
!= NULL
6132 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
6133 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
6134 > fix
->fx_frag
->fr_address
)
6135 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
6136 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
6137 <= fix
->fx_frag
->fr_address
))))
6140 return generic_force_reloc (fix
);
6144 ppc_new_dot_label (symbolS
*sym
)
6146 /* Anchor this label to the current csect for relocations. */
6147 symbol_get_tc (sym
)->within
= ppc_current_csect
;
6150 #endif /* OBJ_XCOFF */
6153 /* If this function returns non-zero, it guarantees that a relocation
6154 will be emitted for a fixup. */
6157 ppc_force_relocation (fixS
*fix
)
6159 /* Branch prediction relocations must force a relocation, as must
6160 the vtable description relocs. */
6161 switch (fix
->fx_r_type
)
6163 case BFD_RELOC_PPC_B16_BRTAKEN
:
6164 case BFD_RELOC_PPC_B16_BRNTAKEN
:
6165 case BFD_RELOC_PPC_BA16_BRTAKEN
:
6166 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
6167 case BFD_RELOC_24_PLT_PCREL
:
6168 case BFD_RELOC_PPC64_TOC
:
6174 if (fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
6175 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
6178 return generic_force_reloc (fix
);
6182 ppc_fix_adjustable (fixS
*fix
)
6184 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
6185 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
6186 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
6187 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
6188 && fix
->fx_r_type
!= BFD_RELOC_PPC64_GOT16_DS
6189 && fix
->fx_r_type
!= BFD_RELOC_PPC64_GOT16_LO_DS
6190 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
6191 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
6192 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
6193 && !(fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
6194 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
));
6199 ppc_frag_check (struct frag
*fragP
)
6201 if (!fragP
->has_code
)
6204 if (ppc_mach() == bfd_mach_ppc_vle
)
6206 if (((fragP
->fr_address
+ fragP
->insn_addr
) & 1) != 0)
6207 as_bad (_("instruction address is not a multiple of 2"));
6211 if (((fragP
->fr_address
+ fragP
->insn_addr
) & 3) != 0)
6212 as_bad (_("instruction address is not a multiple of 4"));
6216 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
6217 rs_align_code frag. */
6220 ppc_handle_align (struct frag
*fragP
)
6222 valueT count
= (fragP
->fr_next
->fr_address
6223 - (fragP
->fr_address
+ fragP
->fr_fix
));
6225 if (ppc_mach() == bfd_mach_ppc_vle
&& count
!= 0 && (count
& 1) == 0)
6227 char *dest
= fragP
->fr_literal
+ fragP
->fr_fix
;
6230 md_number_to_chars (dest
, 0x4400, 2);
6232 else if (count
!= 0 && (count
& 3) == 0)
6234 char *dest
= fragP
->fr_literal
+ fragP
->fr_fix
;
6238 if (count
> 4 * nop_limit
&& count
< 0x2000000)
6242 /* Make a branch, then follow with nops. Insert another
6243 frag to handle the nops. */
6244 md_number_to_chars (dest
, 0x48000000 + count
, 4);
6249 rest
= xmalloc (SIZEOF_STRUCT_FRAG
+ 4);
6250 memcpy (rest
, fragP
, SIZEOF_STRUCT_FRAG
);
6251 fragP
->fr_next
= rest
;
6253 rest
->fr_address
+= rest
->fr_fix
+ 4;
6255 /* If we leave the next frag as rs_align_code we'll come here
6256 again, resulting in a bunch of branches rather than a
6257 branch followed by nops. */
6258 rest
->fr_type
= rs_align
;
6259 dest
= rest
->fr_literal
;
6262 md_number_to_chars (dest
, 0x60000000, 4);
6264 if ((ppc_cpu
& PPC_OPCODE_POWER6
) != 0
6265 || (ppc_cpu
& PPC_OPCODE_POWER7
) != 0)
6267 /* For power6 and power7, we want the last nop to be a group
6268 terminating one. Do this by inserting an rs_fill frag immediately
6269 after this one, with its address set to the last nop location.
6270 This will automatically reduce the number of nops in the current
6274 struct frag
*group_nop
= xmalloc (SIZEOF_STRUCT_FRAG
+ 4);
6276 memcpy (group_nop
, fragP
, SIZEOF_STRUCT_FRAG
);
6277 group_nop
->fr_address
= group_nop
->fr_next
->fr_address
- 4;
6278 group_nop
->fr_fix
= 0;
6279 group_nop
->fr_offset
= 1;
6280 group_nop
->fr_type
= rs_fill
;
6281 fragP
->fr_next
= group_nop
;
6282 dest
= group_nop
->fr_literal
;
6285 if ((ppc_cpu
& PPC_OPCODE_POWER7
) != 0)
6287 if (ppc_cpu
& PPC_OPCODE_E500MC
)
6288 /* e500mc group terminating nop: "ori 0,0,0". */
6289 md_number_to_chars (dest
, 0x60000000, 4);
6291 /* power7 group terminating nop: "ori 2,2,0". */
6292 md_number_to_chars (dest
, 0x60420000, 4);
6295 /* power6 group terminating nop: "ori 1,1,0". */
6296 md_number_to_chars (dest
, 0x60210000, 4);
6301 /* Apply a fixup to the object code. This is called for all the
6302 fixups we generated by the call to fix_new_exp, above. In the call
6303 above we used a reloc code which was the largest legal reloc code
6304 plus the operand index. Here we undo that to recover the operand
6305 index. At this point all symbol values should be fully resolved,
6306 and we attempt to completely resolve the reloc. If we can not do
6307 that, we determine the correct reloc code and put it back in the
6311 md_apply_fix (fixS
*fixP
, valueT
*valP
, segT seg ATTRIBUTE_UNUSED
)
6313 valueT value
= * valP
;
6316 if (fixP
->fx_addsy
!= NULL
)
6318 /* Hack around bfd_install_relocation brain damage. */
6320 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
6325 /* FIXME FIXME FIXME: The value we are passed in *valP includes
6326 the symbol values. If we are doing this relocation the code in
6327 write.c is going to call bfd_install_relocation, which is also
6328 going to use the symbol value. That means that if the reloc is
6329 fully resolved we want to use *valP since bfd_install_relocation is
6331 However, if the reloc is not fully resolved we do not want to
6332 use *valP, and must use fx_offset instead. If the relocation
6333 is PC-relative, we then need to re-apply md_pcrel_from_section
6334 to this new relocation value. */
6335 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
6340 value
= fixP
->fx_offset
;
6342 value
-= md_pcrel_from_section (fixP
, seg
);
6346 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
6348 /* We can't actually support subtracting a symbol. */
6349 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
6352 if ((int) fixP
->fx_r_type
>= (int) BFD_RELOC_UNUSED
)
6355 const struct powerpc_operand
*operand
;
6359 opindex
= (int) fixP
->fx_r_type
- (int) BFD_RELOC_UNUSED
;
6361 operand
= &powerpc_operands
[opindex
];
6364 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
6365 does not generate a reloc. It uses the offset of `sym' within its
6366 csect. Other usages, such as `.long sym', generate relocs. This
6367 is the documented behaviour of non-TOC symbols. */
6368 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
6369 && (operand
->bitm
& 0xfff0) == 0xfff0
6370 && operand
->shift
== 0
6371 && (operand
->insert
== NULL
|| ppc_obj64
)
6372 && fixP
->fx_addsy
!= NULL
6373 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
6374 && symbol_get_tc (fixP
->fx_addsy
)->symbol_class
!= XMC_TC
6375 && symbol_get_tc (fixP
->fx_addsy
)->symbol_class
!= XMC_TC0
6376 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
6378 value
= fixP
->fx_offset
;
6383 /* Fetch the instruction, insert the fully resolved operand
6384 value, and stuff the instruction back again. */
6385 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
6386 if (target_big_endian
)
6388 if (fixP
->fx_size
== 4)
6389 insn
= bfd_getb32 ((unsigned char *) where
);
6391 insn
= bfd_getb16 ((unsigned char *) where
);
6395 if (fixP
->fx_size
== 4)
6396 insn
= bfd_getl32 ((unsigned char *) where
);
6398 insn
= bfd_getl16 ((unsigned char *) where
);
6400 insn
= ppc_insert_operand (insn
, operand
, (offsetT
) value
,
6401 fixP
->tc_fix_data
.ppc_cpu
,
6402 fixP
->fx_file
, fixP
->fx_line
);
6403 if (target_big_endian
)
6405 if (fixP
->fx_size
== 4)
6406 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
6408 bfd_putb16 ((bfd_vma
) insn
, (unsigned char *) where
);
6412 if (fixP
->fx_size
== 4)
6413 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
6415 bfd_putl16 ((bfd_vma
) insn
, (unsigned char *) where
);
6419 /* Nothing else to do here. */
6422 gas_assert (fixP
->fx_addsy
!= NULL
);
6424 /* Determine a BFD reloc value based on the operand information.
6425 We are only prepared to turn a few of the operands into
6427 if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
6428 && operand
->bitm
== 0x3fffffc
6429 && operand
->shift
== 0)
6430 fixP
->fx_r_type
= BFD_RELOC_PPC_B26
;
6431 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
6432 && operand
->bitm
== 0xfffc
6433 && operand
->shift
== 0)
6435 fixP
->fx_r_type
= BFD_RELOC_PPC_B16
;
6438 if (target_big_endian
)
6439 fixP
->fx_where
+= 2;
6442 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
6443 && operand
->bitm
== 0x1fe
6444 && operand
->shift
== -1)
6445 fixP
->fx_r_type
= BFD_RELOC_PPC_VLE_REL8
;
6446 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
6447 && operand
->bitm
== 0xfffe
6448 && operand
->shift
== 0)
6449 fixP
->fx_r_type
= BFD_RELOC_PPC_VLE_REL15
;
6450 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
6451 && operand
->bitm
== 0x1fffffe
6452 && operand
->shift
== 0)
6453 fixP
->fx_r_type
= BFD_RELOC_PPC_VLE_REL24
;
6454 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
6455 && operand
->bitm
== 0x3fffffc
6456 && operand
->shift
== 0)
6457 fixP
->fx_r_type
= BFD_RELOC_PPC_BA26
;
6458 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
6459 && operand
->bitm
== 0xfffc
6460 && operand
->shift
== 0)
6462 fixP
->fx_r_type
= BFD_RELOC_PPC_BA16
;
6465 if (target_big_endian
)
6466 fixP
->fx_where
+= 2;
6469 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
6470 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
6471 && (operand
->bitm
& 0xfff0) == 0xfff0
6472 && operand
->shift
== 0)
6474 if (ppc_is_toc_sym (fixP
->fx_addsy
))
6476 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
6479 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
6480 fixP
->fx_r_type
= BFD_RELOC_PPC64_TOC16_DS
;
6485 fixP
->fx_r_type
= BFD_RELOC_16
;
6488 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
6489 fixP
->fx_r_type
= BFD_RELOC_PPC64_ADDR16_DS
;
6493 if (target_big_endian
)
6494 fixP
->fx_where
+= 2;
6496 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
6502 /* Use expr_symbol_where to see if this is an expression
6504 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
6505 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6506 _("unresolved expression that must be resolved"));
6508 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6509 _("unsupported relocation against %s"),
6510 S_GET_NAME (fixP
->fx_addsy
));
6518 ppc_elf_validate_fix (fixP
, seg
);
6520 switch (fixP
->fx_r_type
)
6522 case BFD_RELOC_CTOR
:
6529 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
6533 case BFD_RELOC_32_PCREL
:
6534 case BFD_RELOC_PPC_EMB_NADDR32
:
6535 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6542 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
6545 case BFD_RELOC_64_PCREL
:
6546 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6550 case BFD_RELOC_GPREL16
:
6551 case BFD_RELOC_16_GOT_PCREL
:
6552 case BFD_RELOC_16_GOTOFF
:
6553 case BFD_RELOC_LO16_GOTOFF
:
6554 case BFD_RELOC_HI16_GOTOFF
:
6555 case BFD_RELOC_HI16_S_GOTOFF
:
6556 case BFD_RELOC_16_BASEREL
:
6557 case BFD_RELOC_LO16_BASEREL
:
6558 case BFD_RELOC_HI16_BASEREL
:
6559 case BFD_RELOC_HI16_S_BASEREL
:
6560 case BFD_RELOC_PPC_EMB_NADDR16
:
6561 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
6562 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
6563 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
6564 case BFD_RELOC_PPC_EMB_SDAI16
:
6565 case BFD_RELOC_PPC_EMB_SDA2REL
:
6566 case BFD_RELOC_PPC_EMB_SDA2I16
:
6567 case BFD_RELOC_PPC_EMB_RELSEC16
:
6568 case BFD_RELOC_PPC_EMB_RELST_LO
:
6569 case BFD_RELOC_PPC_EMB_RELST_HI
:
6570 case BFD_RELOC_PPC_EMB_RELST_HA
:
6571 case BFD_RELOC_PPC_EMB_RELSDA
:
6572 case BFD_RELOC_PPC_TOC16
:
6574 case BFD_RELOC_PPC64_TOC16_LO
:
6575 case BFD_RELOC_PPC64_TOC16_HI
:
6576 case BFD_RELOC_PPC64_TOC16_HA
:
6580 if (fixP
->fx_addsy
!= NULL
)
6581 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6582 _("cannot emit PC relative %s relocation against %s"),
6583 bfd_get_reloc_code_name (fixP
->fx_r_type
),
6584 S_GET_NAME (fixP
->fx_addsy
));
6586 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6587 _("cannot emit PC relative %s relocation"),
6588 bfd_get_reloc_code_name (fixP
->fx_r_type
));
6591 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6597 fixP
->fx_r_type
= BFD_RELOC_16_PCREL
;
6600 case BFD_RELOC_16_PCREL
:
6601 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6605 case BFD_RELOC_LO16
:
6607 fixP
->fx_r_type
= BFD_RELOC_LO16_PCREL
;
6610 case BFD_RELOC_LO16_PCREL
:
6611 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6615 /* This case happens when you write, for example,
6617 where L1 and L2 are defined later. */
6618 case BFD_RELOC_HI16
:
6620 fixP
->fx_r_type
= BFD_RELOC_HI16_PCREL
;
6623 case BFD_RELOC_HI16_PCREL
:
6624 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6628 case BFD_RELOC_HI16_S
:
6630 fixP
->fx_r_type
= BFD_RELOC_HI16_S_PCREL
;
6633 case BFD_RELOC_HI16_S_PCREL
:
6634 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6638 case BFD_RELOC_PPC_VLE_SDAREL_LO16A
:
6639 case BFD_RELOC_PPC_VLE_LO16A
:
6641 int tval
= PPC_VLE_LO16A (value
);
6642 valueT oldval
= md_chars_to_number (
6643 fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
, 4);
6644 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6645 (oldval
| tval
), 4);
6649 case BFD_RELOC_PPC_VLE_SDAREL_LO16D
:
6650 case BFD_RELOC_PPC_VLE_LO16D
:
6652 int tval
= PPC_VLE_LO16D (value
);
6653 valueT oldval
= md_chars_to_number (
6654 fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
, 4);
6655 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6656 (oldval
| tval
), 4);
6660 case BFD_RELOC_PPC_VLE_SDAREL_HI16A
:
6661 case BFD_RELOC_PPC_VLE_HI16A
:
6663 int tval
= PPC_VLE_HI16A (value
);
6664 valueT oldval
= md_chars_to_number (
6665 fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
, 4);
6666 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6667 (oldval
| tval
), 4);
6671 case BFD_RELOC_PPC_VLE_SDAREL_HI16D
:
6672 case BFD_RELOC_PPC_VLE_HI16D
:
6674 int tval
= PPC_VLE_HI16D (value
);
6675 valueT oldval
= md_chars_to_number (
6676 fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
, 4);
6677 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6678 (oldval
| tval
), 4);
6682 case BFD_RELOC_PPC_VLE_SDAREL_HA16A
:
6683 case BFD_RELOC_PPC_VLE_HA16A
:
6685 int tval
= PPC_VLE_HA16A (value
);
6686 valueT oldval
= md_chars_to_number (
6687 fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
, 4);
6688 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6689 (oldval
| tval
), 4);
6693 case BFD_RELOC_PPC_VLE_SDAREL_HA16D
:
6694 case BFD_RELOC_PPC_VLE_HA16D
:
6696 int tval
= PPC_VLE_HA16D (value
);
6697 valueT oldval
= md_chars_to_number (
6698 fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
, 4);
6699 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6700 (oldval
| tval
), 4);
6704 case BFD_RELOC_PPC_VLE_SDA21_LO
:
6706 int tval
= PPC_LO (value
);
6707 valueT oldval
= md_chars_to_number (
6708 fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
, 4);
6709 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6710 (oldval
| tval
), 4);
6714 case BFD_RELOC_PPC_VLE_SDA21
:
6716 valueT oldval
= md_chars_to_number (
6717 fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
, 4);
6718 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6719 (oldval
| value
), 4);
6724 case BFD_RELOC_NONE
:
6729 case BFD_RELOC_PPC64_HIGHER
:
6732 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6733 PPC_HIGHER (value
), 2);
6736 case BFD_RELOC_PPC64_HIGHER_S
:
6739 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6740 PPC_HIGHERA (value
), 2);
6743 case BFD_RELOC_PPC64_HIGHEST
:
6746 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6747 PPC_HIGHEST (value
), 2);
6750 case BFD_RELOC_PPC64_HIGHEST_S
:
6753 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6754 PPC_HIGHESTA (value
), 2);
6757 case BFD_RELOC_PPC64_ADDR16_DS
:
6758 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
6759 case BFD_RELOC_PPC64_GOT16_DS
:
6760 case BFD_RELOC_PPC64_GOT16_LO_DS
:
6761 case BFD_RELOC_PPC64_PLT16_LO_DS
:
6762 case BFD_RELOC_PPC64_SECTOFF_DS
:
6763 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
6764 case BFD_RELOC_PPC64_TOC16_DS
:
6765 case BFD_RELOC_PPC64_TOC16_LO_DS
:
6766 case BFD_RELOC_PPC64_PLTGOT16_DS
:
6767 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
6771 char *where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
6772 unsigned long val
, mask
;
6774 if (target_big_endian
)
6775 val
= bfd_getb32 (where
- 2);
6777 val
= bfd_getl32 (where
);
6779 /* lq insns reserve the four lsbs. */
6780 if ((ppc_cpu
& PPC_OPCODE_POWER4
) != 0
6781 && (val
& (0x3f << 26)) == (56u << 26))
6783 val
|= value
& mask
;
6784 if (target_big_endian
)
6785 bfd_putb16 ((bfd_vma
) val
, where
);
6787 bfd_putl16 ((bfd_vma
) val
, where
);
6791 case BFD_RELOC_PPC_B16_BRTAKEN
:
6792 case BFD_RELOC_PPC_B16_BRNTAKEN
:
6793 case BFD_RELOC_PPC_BA16_BRTAKEN
:
6794 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
6797 case BFD_RELOC_PPC_TLS
:
6798 case BFD_RELOC_PPC_TLSGD
:
6799 case BFD_RELOC_PPC_TLSLD
:
6802 case BFD_RELOC_PPC_DTPMOD
:
6803 case BFD_RELOC_PPC_TPREL16
:
6804 case BFD_RELOC_PPC_TPREL16_LO
:
6805 case BFD_RELOC_PPC_TPREL16_HI
:
6806 case BFD_RELOC_PPC_TPREL16_HA
:
6807 case BFD_RELOC_PPC_TPREL
:
6808 case BFD_RELOC_PPC_DTPREL16
:
6809 case BFD_RELOC_PPC_DTPREL16_LO
:
6810 case BFD_RELOC_PPC_DTPREL16_HI
:
6811 case BFD_RELOC_PPC_DTPREL16_HA
:
6812 case BFD_RELOC_PPC_DTPREL
:
6813 case BFD_RELOC_PPC_GOT_TLSGD16
:
6814 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
6815 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
6816 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
6817 case BFD_RELOC_PPC_GOT_TLSLD16
:
6818 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
6819 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
6820 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
6821 case BFD_RELOC_PPC_GOT_TPREL16
:
6822 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
6823 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
6824 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
6825 case BFD_RELOC_PPC_GOT_DTPREL16
:
6826 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
6827 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
6828 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
6829 case BFD_RELOC_PPC64_TPREL16_DS
:
6830 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
6831 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
6832 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
6833 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
6834 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
6835 case BFD_RELOC_PPC64_DTPREL16_DS
:
6836 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
6837 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
6838 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
6839 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
6840 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
6841 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
6844 /* Because SDA21 modifies the register field, the size is set to 4
6845 bytes, rather than 2, so offset it here appropriately. */
6846 case BFD_RELOC_PPC_EMB_SDA21
:
6850 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
6851 + ((target_big_endian
) ? 2 : 0),
6858 /* This can occur if there is a bug in the input assembler, eg:
6859 ".byte <undefined_symbol> - ." */
6861 as_bad (_("unable to handle reference to symbol %s"),
6862 S_GET_NAME (fixP
->fx_addsy
));
6864 as_bad (_("unable to resolve expression"));
6868 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6872 case BFD_RELOC_24_PLT_PCREL
:
6873 case BFD_RELOC_PPC_LOCAL24PC
:
6874 if (!fixP
->fx_pcrel
&& !fixP
->fx_done
)
6882 /* Fetch the instruction, insert the fully resolved operand
6883 value, and stuff the instruction back again. */
6884 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
6885 if (target_big_endian
)
6886 insn
= bfd_getb32 ((unsigned char *) where
);
6888 insn
= bfd_getl32 ((unsigned char *) where
);
6889 if (ppc_mach() == bfd_mach_ppc_vle
)
6891 if ((value
& 1) != 0)
6892 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6893 _("branch address must be a multiple of 2"));
6897 if ((value
& 3) != 0)
6898 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6899 _("branch address must be a multiple of 4"));
6901 if ((offsetT
) value
< -0x40000000
6902 || (offsetT
) value
>= 0x40000000)
6903 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6904 _("@local or @plt branch destination is too far away, %ld bytes"),
6906 insn
= insn
| (value
& 0x03fffffc);
6907 if (target_big_endian
)
6908 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
6910 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
6914 case BFD_RELOC_VTABLE_INHERIT
:
6917 && !S_IS_DEFINED (fixP
->fx_addsy
)
6918 && !S_IS_WEAK (fixP
->fx_addsy
))
6919 S_SET_WEAK (fixP
->fx_addsy
);
6922 case BFD_RELOC_VTABLE_ENTRY
:
6927 /* Generated by reference to `sym@tocbase'. The sym is
6928 ignored by the linker. */
6929 case BFD_RELOC_PPC64_TOC
:
6935 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
6942 fixP
->fx_addnumber
= value
;
6944 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6945 from the section contents. If we are going to be emitting a reloc
6946 then the section contents are immaterial, so don't warn if they
6947 happen to overflow. Leave such warnings to ld. */
6949 fixP
->fx_no_overflow
= 1;
6951 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
6952 fixP
->fx_addnumber
= 0;
6956 fixP
->fx_addnumber
= 0;
6958 /* We want to use the offset within the toc, not the actual VMA
6960 fixP
->fx_addnumber
=
6961 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
))
6962 - S_GET_VALUE (ppc_toc_csect
);
6968 /* Generate a reloc for a fixup. */
6971 tc_gen_reloc (asection
*seg ATTRIBUTE_UNUSED
, fixS
*fixp
)
6975 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
6977 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
6978 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
6979 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6980 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
6981 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
6983 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
6984 _("reloc %d not supported by object file format"),
6985 (int) fixp
->fx_r_type
);
6988 reloc
->addend
= fixp
->fx_addnumber
;
6994 ppc_cfi_frame_initial_instructions (void)
6996 cfi_add_CFA_def_cfa (1, 0);
7000 tc_ppc_regname_to_dw2regnum (char *regname
)
7002 unsigned int regnum
= -1;
7006 static struct { char *name
; int dw2regnum
; } regnames
[] =
7008 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
7009 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
7010 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
7011 { "spe_acc", 111 }, { "spefscr", 112 }
7014 for (i
= 0; i
< ARRAY_SIZE (regnames
); ++i
)
7015 if (strcmp (regnames
[i
].name
, regname
) == 0)
7016 return regnames
[i
].dw2regnum
;
7018 if (regname
[0] == 'r' || regname
[0] == 'f' || regname
[0] == 'v')
7020 p
= regname
+ 1 + (regname
[1] == '.');
7021 regnum
= strtoul (p
, &q
, 10);
7022 if (p
== q
|| *q
|| regnum
>= 32)
7024 if (regname
[0] == 'f')
7026 else if (regname
[0] == 'v')
7029 else if (regname
[0] == 'c' && regname
[1] == 'r')
7031 p
= regname
+ 2 + (regname
[2] == '.');
7032 if (p
[0] < '0' || p
[0] > '7' || p
[1])
7034 regnum
= p
[0] - '0' + 68;