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252b5132 | 1 | /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000) |
ae6063d4 | 2 | Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 |
2c1c4c62 | 3 | Free Software Foundation, Inc. |
252b5132 RH |
4 | Written by Ian Lance Taylor, Cygnus Support. |
5 | ||
6 | This file is part of GAS, the GNU Assembler. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GAS is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GAS; see the file COPYING. If not, write to the Free | |
20 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
81d4177b | 21 | 02111-1307, USA. */ |
252b5132 RH |
22 | |
23 | #include <stdio.h> | |
252b5132 | 24 | #include "as.h" |
3882b010 | 25 | #include "safe-ctype.h" |
252b5132 | 26 | #include "subsegs.h" |
75e21f08 | 27 | #include "dw2gencfi.h" |
252b5132 RH |
28 | #include "opcode/ppc.h" |
29 | ||
30 | #ifdef OBJ_ELF | |
31 | #include "elf/ppc.h" | |
5d6f4f16 | 32 | #include "dwarf2dbg.h" |
252b5132 RH |
33 | #endif |
34 | ||
35 | #ifdef TE_PE | |
36 | #include "coff/pe.h" | |
37 | #endif | |
38 | ||
39 | /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */ | |
40 | ||
41 | /* Tell the main code what the endianness is. */ | |
42 | extern int target_big_endian; | |
43 | ||
44 | /* Whether or not, we've set target_big_endian. */ | |
45 | static int set_target_endian = 0; | |
46 | ||
47 | /* Whether to use user friendly register names. */ | |
48 | #ifndef TARGET_REG_NAMES_P | |
49 | #ifdef TE_PE | |
b34976b6 | 50 | #define TARGET_REG_NAMES_P TRUE |
252b5132 | 51 | #else |
b34976b6 | 52 | #define TARGET_REG_NAMES_P FALSE |
252b5132 RH |
53 | #endif |
54 | #endif | |
55 | ||
0baf16f2 AM |
56 | /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST, |
57 | HIGHESTA. */ | |
58 | ||
59 | /* #lo(value) denotes the least significant 16 bits of the indicated. */ | |
60 | #define PPC_LO(v) ((v) & 0xffff) | |
61 | ||
62 | /* #hi(value) denotes bits 16 through 31 of the indicated value. */ | |
63 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
64 | ||
65 | /* #ha(value) denotes the high adjusted value: bits 16 through 31 of | |
66 | the indicated value, compensating for #lo() being treated as a | |
67 | signed number. */ | |
15c1449b | 68 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) |
0baf16f2 AM |
69 | |
70 | /* #higher(value) denotes bits 32 through 47 of the indicated value. */ | |
2a98c3a6 | 71 | #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff) |
0baf16f2 AM |
72 | |
73 | /* #highera(value) denotes bits 32 through 47 of the indicated value, | |
74 | compensating for #lo() being treated as a signed number. */ | |
15c1449b | 75 | #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000) |
0baf16f2 AM |
76 | |
77 | /* #highest(value) denotes bits 48 through 63 of the indicated value. */ | |
2a98c3a6 | 78 | #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff) |
0baf16f2 AM |
79 | |
80 | /* #highesta(value) denotes bits 48 through 63 of the indicated value, | |
15c1449b AM |
81 | compensating for #lo being treated as a signed number. */ |
82 | #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000) | |
0baf16f2 AM |
83 | |
84 | #define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000) | |
85 | ||
b34976b6 | 86 | static bfd_boolean reg_names_p = TARGET_REG_NAMES_P; |
252b5132 | 87 | |
b34976b6 | 88 | static bfd_boolean register_name PARAMS ((expressionS *)); |
252b5132 RH |
89 | static void ppc_set_cpu PARAMS ((void)); |
90 | static unsigned long ppc_insert_operand | |
91 | PARAMS ((unsigned long insn, const struct powerpc_operand *operand, | |
92 | offsetT val, char *file, unsigned int line)); | |
93 | static void ppc_macro PARAMS ((char *str, const struct powerpc_macro *macro)); | |
94 | static void ppc_byte PARAMS ((int)); | |
0baf16f2 AM |
95 | |
96 | #if defined (OBJ_XCOFF) || defined (OBJ_ELF) | |
252b5132 RH |
97 | static int ppc_is_toc_sym PARAMS ((symbolS *sym)); |
98 | static void ppc_tc PARAMS ((int)); | |
0baf16f2 AM |
99 | static void ppc_machine PARAMS ((int)); |
100 | #endif | |
252b5132 RH |
101 | |
102 | #ifdef OBJ_XCOFF | |
103 | static void ppc_comm PARAMS ((int)); | |
104 | static void ppc_bb PARAMS ((int)); | |
105 | static void ppc_bc PARAMS ((int)); | |
106 | static void ppc_bf PARAMS ((int)); | |
107 | static void ppc_biei PARAMS ((int)); | |
108 | static void ppc_bs PARAMS ((int)); | |
109 | static void ppc_eb PARAMS ((int)); | |
110 | static void ppc_ec PARAMS ((int)); | |
111 | static void ppc_ef PARAMS ((int)); | |
112 | static void ppc_es PARAMS ((int)); | |
113 | static void ppc_csect PARAMS ((int)); | |
931e13a6 | 114 | static void ppc_change_csect PARAMS ((symbolS *, offsetT)); |
252b5132 RH |
115 | static void ppc_function PARAMS ((int)); |
116 | static void ppc_extern PARAMS ((int)); | |
117 | static void ppc_lglobl PARAMS ((int)); | |
118 | static void ppc_section PARAMS ((int)); | |
119 | static void ppc_named_section PARAMS ((int)); | |
120 | static void ppc_stabx PARAMS ((int)); | |
121 | static void ppc_rename PARAMS ((int)); | |
122 | static void ppc_toc PARAMS ((int)); | |
123 | static void ppc_xcoff_cons PARAMS ((int)); | |
124 | static void ppc_vbyte PARAMS ((int)); | |
125 | #endif | |
126 | ||
127 | #ifdef OBJ_ELF | |
128 | static bfd_reloc_code_real_type ppc_elf_suffix PARAMS ((char **, expressionS *)); | |
129 | static void ppc_elf_cons PARAMS ((int)); | |
130 | static void ppc_elf_rdata PARAMS ((int)); | |
131 | static void ppc_elf_lcomm PARAMS ((int)); | |
132 | static void ppc_elf_validate_fix PARAMS ((fixS *, segT)); | |
dc1d03fc | 133 | static void ppc_apuinfo_section_add PARAMS ((unsigned int apu, unsigned int version)); |
252b5132 RH |
134 | #endif |
135 | ||
136 | #ifdef TE_PE | |
137 | static void ppc_set_current_section PARAMS ((segT)); | |
138 | static void ppc_previous PARAMS ((int)); | |
139 | static void ppc_pdata PARAMS ((int)); | |
140 | static void ppc_ydata PARAMS ((int)); | |
141 | static void ppc_reldata PARAMS ((int)); | |
142 | static void ppc_rdata PARAMS ((int)); | |
143 | static void ppc_ualong PARAMS ((int)); | |
144 | static void ppc_znop PARAMS ((int)); | |
145 | static void ppc_pe_comm PARAMS ((int)); | |
146 | static void ppc_pe_section PARAMS ((int)); | |
147 | static void ppc_pe_function PARAMS ((int)); | |
148 | static void ppc_pe_tocd PARAMS ((int)); | |
149 | #endif | |
150 | \f | |
151 | /* Generic assembler global variables which must be defined by all | |
152 | targets. */ | |
153 | ||
154 | #ifdef OBJ_ELF | |
155 | /* This string holds the chars that always start a comment. If the | |
156 | pre-processor is disabled, these aren't very useful. The macro | |
157 | tc_comment_chars points to this. We use this, rather than the | |
158 | usual comment_chars, so that we can switch for Solaris conventions. */ | |
159 | static const char ppc_solaris_comment_chars[] = "#!"; | |
160 | static const char ppc_eabi_comment_chars[] = "#"; | |
161 | ||
162 | #ifdef TARGET_SOLARIS_COMMENT | |
163 | const char *ppc_comment_chars = ppc_solaris_comment_chars; | |
164 | #else | |
165 | const char *ppc_comment_chars = ppc_eabi_comment_chars; | |
166 | #endif | |
167 | #else | |
168 | const char comment_chars[] = "#"; | |
169 | #endif | |
170 | ||
171 | /* Characters which start a comment at the beginning of a line. */ | |
172 | const char line_comment_chars[] = "#"; | |
173 | ||
174 | /* Characters which may be used to separate multiple commands on a | |
175 | single line. */ | |
176 | const char line_separator_chars[] = ";"; | |
177 | ||
178 | /* Characters which are used to indicate an exponent in a floating | |
179 | point number. */ | |
180 | const char EXP_CHARS[] = "eE"; | |
181 | ||
182 | /* Characters which mean that a number is a floating point constant, | |
183 | as in 0d1.0. */ | |
184 | const char FLT_CHARS[] = "dD"; | |
5ce8663f NC |
185 | |
186 | /* '+' and '-' can be used as postfix predicate predictors for conditional | |
187 | branches. So they need to be accepted as symbol characters. */ | |
188 | const char ppc_symbol_chars[] = "+-"; | |
75e21f08 JJ |
189 | |
190 | /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */ | |
191 | int ppc_cie_data_alignment; | |
252b5132 RH |
192 | \f |
193 | /* The target specific pseudo-ops which we support. */ | |
194 | ||
195 | const pseudo_typeS md_pseudo_table[] = | |
196 | { | |
197 | /* Pseudo-ops which must be overridden. */ | |
198 | { "byte", ppc_byte, 0 }, | |
199 | ||
200 | #ifdef OBJ_XCOFF | |
201 | /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these | |
202 | legitimately belong in the obj-*.c file. However, XCOFF is based | |
203 | on COFF, and is only implemented for the RS/6000. We just use | |
204 | obj-coff.c, and add what we need here. */ | |
205 | { "comm", ppc_comm, 0 }, | |
206 | { "lcomm", ppc_comm, 1 }, | |
207 | { "bb", ppc_bb, 0 }, | |
208 | { "bc", ppc_bc, 0 }, | |
209 | { "bf", ppc_bf, 0 }, | |
210 | { "bi", ppc_biei, 0 }, | |
211 | { "bs", ppc_bs, 0 }, | |
212 | { "csect", ppc_csect, 0 }, | |
213 | { "data", ppc_section, 'd' }, | |
214 | { "eb", ppc_eb, 0 }, | |
215 | { "ec", ppc_ec, 0 }, | |
216 | { "ef", ppc_ef, 0 }, | |
217 | { "ei", ppc_biei, 1 }, | |
218 | { "es", ppc_es, 0 }, | |
219 | { "extern", ppc_extern, 0 }, | |
220 | { "function", ppc_function, 0 }, | |
221 | { "lglobl", ppc_lglobl, 0 }, | |
222 | { "rename", ppc_rename, 0 }, | |
223 | { "section", ppc_named_section, 0 }, | |
224 | { "stabx", ppc_stabx, 0 }, | |
225 | { "text", ppc_section, 't' }, | |
226 | { "toc", ppc_toc, 0 }, | |
227 | { "long", ppc_xcoff_cons, 2 }, | |
7f6d05e8 | 228 | { "llong", ppc_xcoff_cons, 3 }, |
252b5132 RH |
229 | { "word", ppc_xcoff_cons, 1 }, |
230 | { "short", ppc_xcoff_cons, 1 }, | |
231 | { "vbyte", ppc_vbyte, 0 }, | |
232 | #endif | |
233 | ||
234 | #ifdef OBJ_ELF | |
0baf16f2 AM |
235 | { "llong", ppc_elf_cons, 8 }, |
236 | { "quad", ppc_elf_cons, 8 }, | |
252b5132 RH |
237 | { "long", ppc_elf_cons, 4 }, |
238 | { "word", ppc_elf_cons, 2 }, | |
239 | { "short", ppc_elf_cons, 2 }, | |
240 | { "rdata", ppc_elf_rdata, 0 }, | |
241 | { "rodata", ppc_elf_rdata, 0 }, | |
242 | { "lcomm", ppc_elf_lcomm, 0 }, | |
243 | #endif | |
244 | ||
245 | #ifdef TE_PE | |
99a814a1 | 246 | /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */ |
252b5132 RH |
247 | { "previous", ppc_previous, 0 }, |
248 | { "pdata", ppc_pdata, 0 }, | |
249 | { "ydata", ppc_ydata, 0 }, | |
250 | { "reldata", ppc_reldata, 0 }, | |
251 | { "rdata", ppc_rdata, 0 }, | |
252 | { "ualong", ppc_ualong, 0 }, | |
253 | { "znop", ppc_znop, 0 }, | |
254 | { "comm", ppc_pe_comm, 0 }, | |
255 | { "lcomm", ppc_pe_comm, 1 }, | |
256 | { "section", ppc_pe_section, 0 }, | |
257 | { "function", ppc_pe_function,0 }, | |
258 | { "tocd", ppc_pe_tocd, 0 }, | |
259 | #endif | |
260 | ||
0baf16f2 | 261 | #if defined (OBJ_XCOFF) || defined (OBJ_ELF) |
252b5132 | 262 | { "tc", ppc_tc, 0 }, |
0baf16f2 AM |
263 | { "machine", ppc_machine, 0 }, |
264 | #endif | |
252b5132 RH |
265 | |
266 | { NULL, NULL, 0 } | |
267 | }; | |
268 | ||
269 | \f | |
99a814a1 AM |
270 | /* Predefined register names if -mregnames (or default for Windows NT). |
271 | In general, there are lots of them, in an attempt to be compatible | |
272 | with a number of other Windows NT assemblers. */ | |
252b5132 RH |
273 | |
274 | /* Structure to hold information about predefined registers. */ | |
275 | struct pd_reg | |
276 | { | |
277 | char *name; | |
278 | int value; | |
279 | }; | |
280 | ||
281 | /* List of registers that are pre-defined: | |
282 | ||
283 | Each general register has predefined names of the form: | |
284 | 1. r<reg_num> which has the value <reg_num>. | |
285 | 2. r.<reg_num> which has the value <reg_num>. | |
286 | ||
252b5132 RH |
287 | Each floating point register has predefined names of the form: |
288 | 1. f<reg_num> which has the value <reg_num>. | |
289 | 2. f.<reg_num> which has the value <reg_num>. | |
290 | ||
7a899fff C |
291 | Each vector unit register has predefined names of the form: |
292 | 1. v<reg_num> which has the value <reg_num>. | |
293 | 2. v.<reg_num> which has the value <reg_num>. | |
294 | ||
252b5132 RH |
295 | Each condition register has predefined names of the form: |
296 | 1. cr<reg_num> which has the value <reg_num>. | |
297 | 2. cr.<reg_num> which has the value <reg_num>. | |
298 | ||
299 | There are individual registers as well: | |
300 | sp or r.sp has the value 1 | |
301 | rtoc or r.toc has the value 2 | |
302 | fpscr has the value 0 | |
303 | xer has the value 1 | |
304 | lr has the value 8 | |
305 | ctr has the value 9 | |
306 | pmr has the value 0 | |
307 | dar has the value 19 | |
308 | dsisr has the value 18 | |
309 | dec has the value 22 | |
310 | sdr1 has the value 25 | |
311 | srr0 has the value 26 | |
312 | srr1 has the value 27 | |
313 | ||
81d4177b | 314 | The table is sorted. Suitable for searching by a binary search. */ |
252b5132 RH |
315 | |
316 | static const struct pd_reg pre_defined_registers[] = | |
317 | { | |
318 | { "cr.0", 0 }, /* Condition Registers */ | |
319 | { "cr.1", 1 }, | |
320 | { "cr.2", 2 }, | |
321 | { "cr.3", 3 }, | |
322 | { "cr.4", 4 }, | |
323 | { "cr.5", 5 }, | |
324 | { "cr.6", 6 }, | |
325 | { "cr.7", 7 }, | |
326 | ||
327 | { "cr0", 0 }, | |
328 | { "cr1", 1 }, | |
329 | { "cr2", 2 }, | |
330 | { "cr3", 3 }, | |
331 | { "cr4", 4 }, | |
332 | { "cr5", 5 }, | |
333 | { "cr6", 6 }, | |
334 | { "cr7", 7 }, | |
335 | ||
336 | { "ctr", 9 }, | |
337 | ||
338 | { "dar", 19 }, /* Data Access Register */ | |
339 | { "dec", 22 }, /* Decrementer */ | |
340 | { "dsisr", 18 }, /* Data Storage Interrupt Status Register */ | |
341 | ||
342 | { "f.0", 0 }, /* Floating point registers */ | |
81d4177b KH |
343 | { "f.1", 1 }, |
344 | { "f.10", 10 }, | |
345 | { "f.11", 11 }, | |
346 | { "f.12", 12 }, | |
347 | { "f.13", 13 }, | |
348 | { "f.14", 14 }, | |
349 | { "f.15", 15 }, | |
350 | { "f.16", 16 }, | |
351 | { "f.17", 17 }, | |
352 | { "f.18", 18 }, | |
353 | { "f.19", 19 }, | |
354 | { "f.2", 2 }, | |
355 | { "f.20", 20 }, | |
356 | { "f.21", 21 }, | |
357 | { "f.22", 22 }, | |
358 | { "f.23", 23 }, | |
359 | { "f.24", 24 }, | |
360 | { "f.25", 25 }, | |
361 | { "f.26", 26 }, | |
362 | { "f.27", 27 }, | |
363 | { "f.28", 28 }, | |
364 | { "f.29", 29 }, | |
365 | { "f.3", 3 }, | |
252b5132 RH |
366 | { "f.30", 30 }, |
367 | { "f.31", 31 }, | |
81d4177b KH |
368 | { "f.4", 4 }, |
369 | { "f.5", 5 }, | |
370 | { "f.6", 6 }, | |
371 | { "f.7", 7 }, | |
372 | { "f.8", 8 }, | |
373 | { "f.9", 9 }, | |
374 | ||
375 | { "f0", 0 }, | |
376 | { "f1", 1 }, | |
377 | { "f10", 10 }, | |
378 | { "f11", 11 }, | |
379 | { "f12", 12 }, | |
380 | { "f13", 13 }, | |
381 | { "f14", 14 }, | |
382 | { "f15", 15 }, | |
383 | { "f16", 16 }, | |
384 | { "f17", 17 }, | |
385 | { "f18", 18 }, | |
386 | { "f19", 19 }, | |
387 | { "f2", 2 }, | |
388 | { "f20", 20 }, | |
389 | { "f21", 21 }, | |
390 | { "f22", 22 }, | |
391 | { "f23", 23 }, | |
392 | { "f24", 24 }, | |
393 | { "f25", 25 }, | |
394 | { "f26", 26 }, | |
395 | { "f27", 27 }, | |
396 | { "f28", 28 }, | |
397 | { "f29", 29 }, | |
398 | { "f3", 3 }, | |
252b5132 RH |
399 | { "f30", 30 }, |
400 | { "f31", 31 }, | |
81d4177b KH |
401 | { "f4", 4 }, |
402 | { "f5", 5 }, | |
403 | { "f6", 6 }, | |
404 | { "f7", 7 }, | |
405 | { "f8", 8 }, | |
406 | { "f9", 9 }, | |
252b5132 RH |
407 | |
408 | { "fpscr", 0 }, | |
409 | ||
410 | { "lr", 8 }, /* Link Register */ | |
411 | ||
412 | { "pmr", 0 }, | |
413 | ||
414 | { "r.0", 0 }, /* General Purpose Registers */ | |
415 | { "r.1", 1 }, | |
416 | { "r.10", 10 }, | |
417 | { "r.11", 11 }, | |
418 | { "r.12", 12 }, | |
419 | { "r.13", 13 }, | |
420 | { "r.14", 14 }, | |
421 | { "r.15", 15 }, | |
422 | { "r.16", 16 }, | |
423 | { "r.17", 17 }, | |
424 | { "r.18", 18 }, | |
425 | { "r.19", 19 }, | |
426 | { "r.2", 2 }, | |
427 | { "r.20", 20 }, | |
428 | { "r.21", 21 }, | |
429 | { "r.22", 22 }, | |
430 | { "r.23", 23 }, | |
431 | { "r.24", 24 }, | |
432 | { "r.25", 25 }, | |
433 | { "r.26", 26 }, | |
434 | { "r.27", 27 }, | |
435 | { "r.28", 28 }, | |
436 | { "r.29", 29 }, | |
437 | { "r.3", 3 }, | |
438 | { "r.30", 30 }, | |
439 | { "r.31", 31 }, | |
440 | { "r.4", 4 }, | |
441 | { "r.5", 5 }, | |
442 | { "r.6", 6 }, | |
443 | { "r.7", 7 }, | |
444 | { "r.8", 8 }, | |
445 | { "r.9", 9 }, | |
446 | ||
447 | { "r.sp", 1 }, /* Stack Pointer */ | |
448 | ||
449 | { "r.toc", 2 }, /* Pointer to the table of contents */ | |
450 | ||
451 | { "r0", 0 }, /* More general purpose registers */ | |
452 | { "r1", 1 }, | |
453 | { "r10", 10 }, | |
454 | { "r11", 11 }, | |
455 | { "r12", 12 }, | |
456 | { "r13", 13 }, | |
457 | { "r14", 14 }, | |
458 | { "r15", 15 }, | |
459 | { "r16", 16 }, | |
460 | { "r17", 17 }, | |
461 | { "r18", 18 }, | |
462 | { "r19", 19 }, | |
463 | { "r2", 2 }, | |
464 | { "r20", 20 }, | |
465 | { "r21", 21 }, | |
466 | { "r22", 22 }, | |
467 | { "r23", 23 }, | |
468 | { "r24", 24 }, | |
469 | { "r25", 25 }, | |
470 | { "r26", 26 }, | |
471 | { "r27", 27 }, | |
472 | { "r28", 28 }, | |
473 | { "r29", 29 }, | |
474 | { "r3", 3 }, | |
475 | { "r30", 30 }, | |
476 | { "r31", 31 }, | |
477 | { "r4", 4 }, | |
478 | { "r5", 5 }, | |
479 | { "r6", 6 }, | |
480 | { "r7", 7 }, | |
481 | { "r8", 8 }, | |
482 | { "r9", 9 }, | |
483 | ||
484 | { "rtoc", 2 }, /* Table of contents */ | |
485 | ||
486 | { "sdr1", 25 }, /* Storage Description Register 1 */ | |
487 | ||
488 | { "sp", 1 }, | |
489 | ||
490 | { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */ | |
491 | { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */ | |
81d4177b | 492 | |
7a899fff | 493 | { "v.0", 0 }, /* Vector registers */ |
81d4177b KH |
494 | { "v.1", 1 }, |
495 | { "v.10", 10 }, | |
496 | { "v.11", 11 }, | |
497 | { "v.12", 12 }, | |
498 | { "v.13", 13 }, | |
499 | { "v.14", 14 }, | |
500 | { "v.15", 15 }, | |
501 | { "v.16", 16 }, | |
502 | { "v.17", 17 }, | |
503 | { "v.18", 18 }, | |
504 | { "v.19", 19 }, | |
505 | { "v.2", 2 }, | |
506 | { "v.20", 20 }, | |
507 | { "v.21", 21 }, | |
508 | { "v.22", 22 }, | |
509 | { "v.23", 23 }, | |
510 | { "v.24", 24 }, | |
511 | { "v.25", 25 }, | |
512 | { "v.26", 26 }, | |
513 | { "v.27", 27 }, | |
514 | { "v.28", 28 }, | |
515 | { "v.29", 29 }, | |
516 | { "v.3", 3 }, | |
7a899fff C |
517 | { "v.30", 30 }, |
518 | { "v.31", 31 }, | |
81d4177b KH |
519 | { "v.4", 4 }, |
520 | { "v.5", 5 }, | |
521 | { "v.6", 6 }, | |
522 | { "v.7", 7 }, | |
523 | { "v.8", 8 }, | |
524 | { "v.9", 9 }, | |
7a899fff C |
525 | |
526 | { "v0", 0 }, | |
81d4177b KH |
527 | { "v1", 1 }, |
528 | { "v10", 10 }, | |
529 | { "v11", 11 }, | |
530 | { "v12", 12 }, | |
531 | { "v13", 13 }, | |
532 | { "v14", 14 }, | |
533 | { "v15", 15 }, | |
534 | { "v16", 16 }, | |
535 | { "v17", 17 }, | |
536 | { "v18", 18 }, | |
537 | { "v19", 19 }, | |
538 | { "v2", 2 }, | |
539 | { "v20", 20 }, | |
540 | { "v21", 21 }, | |
541 | { "v22", 22 }, | |
542 | { "v23", 23 }, | |
543 | { "v24", 24 }, | |
544 | { "v25", 25 }, | |
545 | { "v26", 26 }, | |
546 | { "v27", 27 }, | |
547 | { "v28", 28 }, | |
548 | { "v29", 29 }, | |
549 | { "v3", 3 }, | |
7a899fff C |
550 | { "v30", 30 }, |
551 | { "v31", 31 }, | |
81d4177b KH |
552 | { "v4", 4 }, |
553 | { "v5", 5 }, | |
554 | { "v6", 6 }, | |
555 | { "v7", 7 }, | |
556 | { "v8", 8 }, | |
7a899fff | 557 | { "v9", 9 }, |
252b5132 RH |
558 | |
559 | { "xer", 1 }, | |
560 | ||
561 | }; | |
562 | ||
bc805888 | 563 | #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg)) |
252b5132 RH |
564 | |
565 | /* Given NAME, find the register number associated with that name, return | |
566 | the integer value associated with the given name or -1 on failure. */ | |
567 | ||
568 | static int reg_name_search | |
569 | PARAMS ((const struct pd_reg *, int, const char * name)); | |
570 | ||
571 | static int | |
572 | reg_name_search (regs, regcount, name) | |
573 | const struct pd_reg *regs; | |
574 | int regcount; | |
575 | const char *name; | |
576 | { | |
577 | int middle, low, high; | |
578 | int cmp; | |
579 | ||
580 | low = 0; | |
581 | high = regcount - 1; | |
582 | ||
583 | do | |
584 | { | |
585 | middle = (low + high) / 2; | |
586 | cmp = strcasecmp (name, regs[middle].name); | |
587 | if (cmp < 0) | |
588 | high = middle - 1; | |
589 | else if (cmp > 0) | |
590 | low = middle + 1; | |
591 | else | |
592 | return regs[middle].value; | |
593 | } | |
594 | while (low <= high); | |
595 | ||
596 | return -1; | |
597 | } | |
598 | ||
599 | /* | |
99a814a1 | 600 | * Summary of register_name. |
252b5132 RH |
601 | * |
602 | * in: Input_line_pointer points to 1st char of operand. | |
603 | * | |
604 | * out: A expressionS. | |
605 | * The operand may have been a register: in this case, X_op == O_register, | |
606 | * X_add_number is set to the register number, and truth is returned. | |
607 | * Input_line_pointer->(next non-blank) char after operand, or is in its | |
608 | * original state. | |
609 | */ | |
610 | ||
b34976b6 | 611 | static bfd_boolean |
252b5132 RH |
612 | register_name (expressionP) |
613 | expressionS *expressionP; | |
614 | { | |
615 | int reg_number; | |
616 | char *name; | |
617 | char *start; | |
618 | char c; | |
619 | ||
99a814a1 | 620 | /* Find the spelling of the operand. */ |
252b5132 | 621 | start = name = input_line_pointer; |
3882b010 | 622 | if (name[0] == '%' && ISALPHA (name[1])) |
252b5132 RH |
623 | name = ++input_line_pointer; |
624 | ||
3882b010 | 625 | else if (!reg_names_p || !ISALPHA (name[0])) |
b34976b6 | 626 | return FALSE; |
252b5132 RH |
627 | |
628 | c = get_symbol_end (); | |
629 | reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name); | |
630 | ||
468cced8 AM |
631 | /* Put back the delimiting char. */ |
632 | *input_line_pointer = c; | |
633 | ||
99a814a1 | 634 | /* Look to see if it's in the register table. */ |
81d4177b | 635 | if (reg_number >= 0) |
252b5132 RH |
636 | { |
637 | expressionP->X_op = O_register; | |
638 | expressionP->X_add_number = reg_number; | |
81d4177b | 639 | |
99a814a1 | 640 | /* Make the rest nice. */ |
252b5132 RH |
641 | expressionP->X_add_symbol = NULL; |
642 | expressionP->X_op_symbol = NULL; | |
b34976b6 | 643 | return TRUE; |
252b5132 | 644 | } |
468cced8 AM |
645 | |
646 | /* Reset the line as if we had not done anything. */ | |
647 | input_line_pointer = start; | |
b34976b6 | 648 | return FALSE; |
252b5132 RH |
649 | } |
650 | \f | |
651 | /* This function is called for each symbol seen in an expression. It | |
652 | handles the special parsing which PowerPC assemblers are supposed | |
653 | to use for condition codes. */ | |
654 | ||
655 | /* Whether to do the special parsing. */ | |
b34976b6 | 656 | static bfd_boolean cr_operand; |
252b5132 RH |
657 | |
658 | /* Names to recognize in a condition code. This table is sorted. */ | |
659 | static const struct pd_reg cr_names[] = | |
660 | { | |
661 | { "cr0", 0 }, | |
662 | { "cr1", 1 }, | |
663 | { "cr2", 2 }, | |
664 | { "cr3", 3 }, | |
665 | { "cr4", 4 }, | |
666 | { "cr5", 5 }, | |
667 | { "cr6", 6 }, | |
668 | { "cr7", 7 }, | |
669 | { "eq", 2 }, | |
670 | { "gt", 1 }, | |
671 | { "lt", 0 }, | |
672 | { "so", 3 }, | |
673 | { "un", 3 } | |
674 | }; | |
675 | ||
676 | /* Parsing function. This returns non-zero if it recognized an | |
677 | expression. */ | |
678 | ||
679 | int | |
680 | ppc_parse_name (name, expr) | |
681 | const char *name; | |
682 | expressionS *expr; | |
683 | { | |
684 | int val; | |
685 | ||
686 | if (! cr_operand) | |
687 | return 0; | |
688 | ||
689 | val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0], | |
690 | name); | |
691 | if (val < 0) | |
692 | return 0; | |
693 | ||
694 | expr->X_op = O_constant; | |
695 | expr->X_add_number = val; | |
696 | ||
697 | return 1; | |
698 | } | |
699 | \f | |
700 | /* Local variables. */ | |
701 | ||
702 | /* The type of processor we are assembling for. This is one or more | |
703 | of the PPC_OPCODE flags defined in opcode/ppc.h. */ | |
2b3c4602 | 704 | static unsigned long ppc_cpu = 0; |
252b5132 | 705 | |
2b3c4602 AM |
706 | /* Whether to target xcoff64/elf64. */ |
707 | static unsigned int ppc_obj64 = BFD_DEFAULT_TARGET_SIZE == 64; | |
7f6d05e8 | 708 | |
252b5132 RH |
709 | /* Opcode hash table. */ |
710 | static struct hash_control *ppc_hash; | |
711 | ||
712 | /* Macro hash table. */ | |
713 | static struct hash_control *ppc_macro_hash; | |
714 | ||
715 | #ifdef OBJ_ELF | |
99a814a1 | 716 | /* What type of shared library support to use. */ |
5d6f4f16 | 717 | static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE; |
252b5132 | 718 | |
99a814a1 | 719 | /* Flags to set in the elf header. */ |
252b5132 RH |
720 | static flagword ppc_flags = 0; |
721 | ||
722 | /* Whether this is Solaris or not. */ | |
723 | #ifdef TARGET_SOLARIS_COMMENT | |
b34976b6 | 724 | #define SOLARIS_P TRUE |
252b5132 | 725 | #else |
b34976b6 | 726 | #define SOLARIS_P FALSE |
252b5132 RH |
727 | #endif |
728 | ||
b34976b6 | 729 | static bfd_boolean msolaris = SOLARIS_P; |
252b5132 RH |
730 | #endif |
731 | ||
732 | #ifdef OBJ_XCOFF | |
733 | ||
734 | /* The RS/6000 assembler uses the .csect pseudo-op to generate code | |
735 | using a bunch of different sections. These assembler sections, | |
736 | however, are all encompassed within the .text or .data sections of | |
737 | the final output file. We handle this by using different | |
738 | subsegments within these main segments. */ | |
739 | ||
740 | /* Next subsegment to allocate within the .text segment. */ | |
741 | static subsegT ppc_text_subsegment = 2; | |
742 | ||
743 | /* Linked list of csects in the text section. */ | |
744 | static symbolS *ppc_text_csects; | |
745 | ||
746 | /* Next subsegment to allocate within the .data segment. */ | |
747 | static subsegT ppc_data_subsegment = 2; | |
748 | ||
749 | /* Linked list of csects in the data section. */ | |
750 | static symbolS *ppc_data_csects; | |
751 | ||
752 | /* The current csect. */ | |
753 | static symbolS *ppc_current_csect; | |
754 | ||
755 | /* The RS/6000 assembler uses a TOC which holds addresses of functions | |
756 | and variables. Symbols are put in the TOC with the .tc pseudo-op. | |
757 | A special relocation is used when accessing TOC entries. We handle | |
758 | the TOC as a subsegment within the .data segment. We set it up if | |
759 | we see a .toc pseudo-op, and save the csect symbol here. */ | |
760 | static symbolS *ppc_toc_csect; | |
761 | ||
762 | /* The first frag in the TOC subsegment. */ | |
763 | static fragS *ppc_toc_frag; | |
764 | ||
765 | /* The first frag in the first subsegment after the TOC in the .data | |
766 | segment. NULL if there are no subsegments after the TOC. */ | |
767 | static fragS *ppc_after_toc_frag; | |
768 | ||
769 | /* The current static block. */ | |
770 | static symbolS *ppc_current_block; | |
771 | ||
772 | /* The COFF debugging section; set by md_begin. This is not the | |
773 | .debug section, but is instead the secret BFD section which will | |
774 | cause BFD to set the section number of a symbol to N_DEBUG. */ | |
775 | static asection *ppc_coff_debug_section; | |
776 | ||
777 | #endif /* OBJ_XCOFF */ | |
778 | ||
779 | #ifdef TE_PE | |
780 | ||
781 | /* Various sections that we need for PE coff support. */ | |
782 | static segT ydata_section; | |
783 | static segT pdata_section; | |
784 | static segT reldata_section; | |
785 | static segT rdata_section; | |
786 | static segT tocdata_section; | |
787 | ||
81d4177b | 788 | /* The current section and the previous section. See ppc_previous. */ |
252b5132 RH |
789 | static segT ppc_previous_section; |
790 | static segT ppc_current_section; | |
791 | ||
792 | #endif /* TE_PE */ | |
793 | ||
794 | #ifdef OBJ_ELF | |
795 | symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */ | |
6a0c61b7 EZ |
796 | #define PPC_APUINFO_ISEL 0x40 |
797 | #define PPC_APUINFO_PMR 0x41 | |
798 | #define PPC_APUINFO_RFMCI 0x42 | |
799 | #define PPC_APUINFO_CACHELCK 0x43 | |
800 | #define PPC_APUINFO_SPE 0x100 | |
801 | #define PPC_APUINFO_EFS 0x101 | |
802 | #define PPC_APUINFO_BRLOCK 0x102 | |
803 | ||
b34976b6 AM |
804 | /* |
805 | * We keep a list of APUinfo | |
6a0c61b7 EZ |
806 | */ |
807 | unsigned long *ppc_apuinfo_list; | |
808 | unsigned int ppc_apuinfo_num; | |
809 | unsigned int ppc_apuinfo_num_alloc; | |
252b5132 RH |
810 | #endif /* OBJ_ELF */ |
811 | \f | |
812 | #ifdef OBJ_ELF | |
15c1449b | 813 | const char *const md_shortopts = "b:l:usm:K:VQ:"; |
252b5132 | 814 | #else |
15c1449b | 815 | const char *const md_shortopts = "um:"; |
252b5132 | 816 | #endif |
15c1449b | 817 | const struct option md_longopts[] = { |
252b5132 RH |
818 | {NULL, no_argument, NULL, 0} |
819 | }; | |
15c1449b | 820 | const size_t md_longopts_size = sizeof (md_longopts); |
252b5132 RH |
821 | |
822 | int | |
823 | md_parse_option (c, arg) | |
824 | int c; | |
825 | char *arg; | |
826 | { | |
827 | switch (c) | |
828 | { | |
829 | case 'u': | |
830 | /* -u means that any undefined symbols should be treated as | |
831 | external, which is the default for gas anyhow. */ | |
832 | break; | |
833 | ||
834 | #ifdef OBJ_ELF | |
835 | case 'l': | |
836 | /* Solaris as takes -le (presumably for little endian). For completeness | |
99a814a1 | 837 | sake, recognize -be also. */ |
252b5132 RH |
838 | if (strcmp (arg, "e") == 0) |
839 | { | |
840 | target_big_endian = 0; | |
841 | set_target_endian = 1; | |
842 | } | |
843 | else | |
844 | return 0; | |
845 | ||
846 | break; | |
847 | ||
848 | case 'b': | |
849 | if (strcmp (arg, "e") == 0) | |
850 | { | |
851 | target_big_endian = 1; | |
852 | set_target_endian = 1; | |
853 | } | |
854 | else | |
855 | return 0; | |
856 | ||
857 | break; | |
858 | ||
859 | case 'K': | |
99a814a1 | 860 | /* Recognize -K PIC. */ |
252b5132 RH |
861 | if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0) |
862 | { | |
863 | shlib = SHLIB_PIC; | |
864 | ppc_flags |= EF_PPC_RELOCATABLE_LIB; | |
865 | } | |
866 | else | |
867 | return 0; | |
868 | ||
869 | break; | |
870 | #endif | |
871 | ||
7f6d05e8 CP |
872 | /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */ |
873 | case 'a': | |
874 | if (strcmp (arg, "64") == 0) | |
2a98c3a6 AM |
875 | { |
876 | #ifdef BFD64 | |
877 | ppc_obj64 = 1; | |
878 | #else | |
879 | as_fatal (_("%s unsupported"), "-a64"); | |
880 | #endif | |
881 | } | |
7f6d05e8 | 882 | else if (strcmp (arg, "32") == 0) |
2b3c4602 | 883 | ppc_obj64 = 0; |
7f6d05e8 CP |
884 | else |
885 | return 0; | |
886 | break; | |
81d4177b | 887 | |
252b5132 RH |
888 | case 'm': |
889 | /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2 | |
99a814a1 | 890 | (RIOS2). */ |
252b5132 | 891 | if (strcmp (arg, "pwrx") == 0 || strcmp (arg, "pwr2") == 0) |
2b3c4602 | 892 | ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32; |
252b5132 RH |
893 | /* -mpwr means to assemble for the IBM POWER (RIOS1). */ |
894 | else if (strcmp (arg, "pwr") == 0) | |
2b3c4602 | 895 | ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32; |
23e1d84c | 896 | /* -m601 means to assemble for the PowerPC 601, which includes |
99a814a1 | 897 | instructions that are holdovers from the Power. */ |
252b5132 | 898 | else if (strcmp (arg, "601") == 0) |
b34976b6 AM |
899 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC |
900 | | PPC_OPCODE_601 | PPC_OPCODE_32); | |
252b5132 | 901 | /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the |
23e1d84c | 902 | PowerPC 603/604. */ |
252b5132 RH |
903 | else if (strcmp (arg, "ppc") == 0 |
904 | || strcmp (arg, "ppc32") == 0 | |
252b5132 RH |
905 | || strcmp (arg, "603") == 0 |
906 | || strcmp (arg, "604") == 0) | |
6a0c61b7 | 907 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32; |
23e1d84c | 908 | /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */ |
418c1742 | 909 | else if (strcmp (arg, "403") == 0 |
b34976b6 AM |
910 | || strcmp (arg, "405") == 0) |
911 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | |
912 | | PPC_OPCODE_403 | PPC_OPCODE_32); | |
3d8aea2f AM |
913 | else if (strcmp (arg, "440") == 0) |
914 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32 | |
55257f50 | 915 | | PPC_OPCODE_440 | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI); |
418c1742 | 916 | else if (strcmp (arg, "7400") == 0 |
b34976b6 AM |
917 | || strcmp (arg, "7410") == 0 |
918 | || strcmp (arg, "7450") == 0 | |
919 | || strcmp (arg, "7455") == 0) | |
920 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | |
921 | | PPC_OPCODE_ALTIVEC | PPC_OPCODE_32); | |
418c1742 | 922 | else if (strcmp (arg, "altivec") == 0) |
b34976b6 AM |
923 | { |
924 | if (ppc_cpu == 0) | |
925 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC; | |
926 | else | |
927 | ppc_cpu |= PPC_OPCODE_ALTIVEC; | |
928 | } | |
6a0c61b7 EZ |
929 | else if (strcmp (arg, "e500") == 0 || strcmp (arg, "e500x2") == 0) |
930 | { | |
b34976b6 AM |
931 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE |
932 | | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK | |
933 | | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | |
934 | | PPC_OPCODE_RFMCI); | |
935 | } | |
6a0c61b7 EZ |
936 | else if (strcmp (arg, "spe") == 0) |
937 | { | |
938 | if (ppc_cpu == 0) | |
939 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_SPE | PPC_OPCODE_EFS; | |
940 | else | |
941 | ppc_cpu |= PPC_OPCODE_SPE; | |
942 | } | |
252b5132 | 943 | /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC |
99a814a1 | 944 | 620. */ |
252b5132 RH |
945 | else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0) |
946 | { | |
6a0c61b7 | 947 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64; |
252b5132 | 948 | } |
d0e9a01c RH |
949 | else if (strcmp (arg, "ppc64bridge") == 0) |
950 | { | |
b34976b6 AM |
951 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC |
952 | | PPC_OPCODE_64_BRIDGE | PPC_OPCODE_64); | |
418c1742 MG |
953 | } |
954 | /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */ | |
955 | else if (strcmp (arg, "booke") == 0 || strcmp (arg, "booke32") == 0) | |
6a0c61b7 EZ |
956 | { |
957 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32; | |
958 | } | |
418c1742 MG |
959 | /* -mbooke64 means enable 64-bit BookE support. */ |
960 | else if (strcmp (arg, "booke64") == 0) | |
961 | { | |
b34976b6 AM |
962 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE |
963 | | PPC_OPCODE_BOOKE64 | PPC_OPCODE_64); | |
d0e9a01c | 964 | } |
23e1d84c AM |
965 | else if (strcmp (arg, "power4") == 0) |
966 | { | |
b34976b6 AM |
967 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC |
968 | | PPC_OPCODE_64 | PPC_OPCODE_POWER4); | |
23e1d84c | 969 | } |
252b5132 RH |
970 | /* -mcom means assemble for the common intersection between Power |
971 | and PowerPC. At present, we just allow the union, rather | |
972 | than the intersection. */ | |
973 | else if (strcmp (arg, "com") == 0) | |
2b3c4602 | 974 | ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32; |
252b5132 RH |
975 | /* -many means to assemble for any architecture (PWR/PWRX/PPC). */ |
976 | else if (strcmp (arg, "any") == 0) | |
2b3c4602 | 977 | ppc_cpu = PPC_OPCODE_ANY | PPC_OPCODE_32; |
252b5132 RH |
978 | |
979 | else if (strcmp (arg, "regnames") == 0) | |
b34976b6 | 980 | reg_names_p = TRUE; |
252b5132 RH |
981 | |
982 | else if (strcmp (arg, "no-regnames") == 0) | |
b34976b6 | 983 | reg_names_p = FALSE; |
252b5132 RH |
984 | |
985 | #ifdef OBJ_ELF | |
99a814a1 AM |
986 | /* -mrelocatable/-mrelocatable-lib -- warn about initializations |
987 | that require relocation. */ | |
252b5132 RH |
988 | else if (strcmp (arg, "relocatable") == 0) |
989 | { | |
5d6f4f16 | 990 | shlib = SHLIB_MRELOCATABLE; |
252b5132 RH |
991 | ppc_flags |= EF_PPC_RELOCATABLE; |
992 | } | |
993 | ||
994 | else if (strcmp (arg, "relocatable-lib") == 0) | |
995 | { | |
5d6f4f16 | 996 | shlib = SHLIB_MRELOCATABLE; |
252b5132 RH |
997 | ppc_flags |= EF_PPC_RELOCATABLE_LIB; |
998 | } | |
999 | ||
99a814a1 | 1000 | /* -memb, set embedded bit. */ |
252b5132 RH |
1001 | else if (strcmp (arg, "emb") == 0) |
1002 | ppc_flags |= EF_PPC_EMB; | |
1003 | ||
99a814a1 AM |
1004 | /* -mlittle/-mbig set the endianess. */ |
1005 | else if (strcmp (arg, "little") == 0 | |
1006 | || strcmp (arg, "little-endian") == 0) | |
252b5132 RH |
1007 | { |
1008 | target_big_endian = 0; | |
1009 | set_target_endian = 1; | |
1010 | } | |
1011 | ||
1012 | else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0) | |
1013 | { | |
1014 | target_big_endian = 1; | |
1015 | set_target_endian = 1; | |
1016 | } | |
1017 | ||
1018 | else if (strcmp (arg, "solaris") == 0) | |
1019 | { | |
b34976b6 | 1020 | msolaris = TRUE; |
252b5132 RH |
1021 | ppc_comment_chars = ppc_solaris_comment_chars; |
1022 | } | |
1023 | ||
1024 | else if (strcmp (arg, "no-solaris") == 0) | |
1025 | { | |
b34976b6 | 1026 | msolaris = FALSE; |
252b5132 RH |
1027 | ppc_comment_chars = ppc_eabi_comment_chars; |
1028 | } | |
1029 | #endif | |
1030 | else | |
1031 | { | |
1032 | as_bad (_("invalid switch -m%s"), arg); | |
1033 | return 0; | |
1034 | } | |
1035 | break; | |
1036 | ||
1037 | #ifdef OBJ_ELF | |
1038 | /* -V: SVR4 argument to print version ID. */ | |
1039 | case 'V': | |
1040 | print_version_id (); | |
1041 | break; | |
1042 | ||
1043 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section | |
1044 | should be emitted or not. FIXME: Not implemented. */ | |
1045 | case 'Q': | |
1046 | break; | |
1047 | ||
1048 | /* Solaris takes -s to specify that .stabs go in a .stabs section, | |
1049 | rather than .stabs.excl, which is ignored by the linker. | |
1050 | FIXME: Not implemented. */ | |
1051 | case 's': | |
1052 | if (arg) | |
1053 | return 0; | |
1054 | ||
1055 | break; | |
1056 | #endif | |
1057 | ||
1058 | default: | |
1059 | return 0; | |
1060 | } | |
1061 | ||
1062 | return 1; | |
1063 | } | |
1064 | ||
1065 | void | |
1066 | md_show_usage (stream) | |
1067 | FILE *stream; | |
1068 | { | |
bc805888 | 1069 | fprintf (stream, _("\ |
252b5132 | 1070 | PowerPC options:\n\ |
df12615d AM |
1071 | -a32 generate ELF32/XCOFF32\n\ |
1072 | -a64 generate ELF64/XCOFF64\n\ | |
252b5132 | 1073 | -u ignored\n\ |
23e1d84c AM |
1074 | -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\ |
1075 | -mpwr generate code for POWER (RIOS1)\n\ | |
1076 | -m601 generate code for PowerPC 601\n\ | |
418c1742 | 1077 | -mppc, -mppc32, -m603, -m604\n\ |
23e1d84c | 1078 | generate code for PowerPC 603/604\n\ |
df12615d | 1079 | -m403, -m405 generate code for PowerPC 403/405\n\ |
3d8aea2f | 1080 | -m440 generate code for PowerPC 440\n\ |
f5c120c5 | 1081 | -m7400, -m7410, -m7450, -m7455\n\ |
df12615d AM |
1082 | generate code For PowerPC 7400/7410/7450/7455\n")); |
1083 | fprintf (stream, _("\ | |
23e1d84c | 1084 | -mppc64, -m620 generate code for PowerPC 620/625/630\n\ |
d0e9a01c | 1085 | -mppc64bridge generate code for PowerPC 64, including bridge insns\n\ |
a09cf9bd MG |
1086 | -mbooke64 generate code for 64-bit PowerPC BookE\n\ |
1087 | -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\ | |
23e1d84c | 1088 | -mpower4 generate code for Power4 architecture\n\ |
252b5132 | 1089 | -mcom generate code Power/PowerPC common instructions\n\ |
df12615d | 1090 | -many generate code for any architecture (PWR/PWRX/PPC)\n")); |
6a0c61b7 | 1091 | fprintf (stream, _("\ |
df12615d | 1092 | -maltivec generate code for AltiVec\n\ |
6a0c61b7 | 1093 | -me500, -me500x2 generate code for Motorola e500 core complex\n\ |
df12615d AM |
1094 | -mspe generate code for Motorola SPE instructions\n\ |
1095 | -mregnames Allow symbolic names for registers\n\ | |
1096 | -mno-regnames Do not allow symbolic names for registers\n")); | |
252b5132 | 1097 | #ifdef OBJ_ELF |
bc805888 | 1098 | fprintf (stream, _("\ |
252b5132 RH |
1099 | -mrelocatable support for GCC's -mrelocatble option\n\ |
1100 | -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\ | |
1101 | -memb set PPC_EMB bit in ELF flags\n\ | |
df12615d | 1102 | -mlittle, -mlittle-endian, -l, -le\n\ |
252b5132 | 1103 | generate code for a little endian machine\n\ |
df12615d AM |
1104 | -mbig, -mbig-endian, -b, -be\n\ |
1105 | generate code for a big endian machine\n\ | |
252b5132 RH |
1106 | -msolaris generate code for Solaris\n\ |
1107 | -mno-solaris do not generate code for Solaris\n\ | |
1108 | -V print assembler version number\n\ | |
1109 | -Qy, -Qn ignored\n")); | |
1110 | #endif | |
1111 | } | |
1112 | \f | |
1113 | /* Set ppc_cpu if it is not already set. */ | |
1114 | ||
1115 | static void | |
1116 | ppc_set_cpu () | |
1117 | { | |
1118 | const char *default_os = TARGET_OS; | |
1119 | const char *default_cpu = TARGET_CPU; | |
1120 | ||
1121 | if (ppc_cpu == 0) | |
1122 | { | |
2a98c3a6 AM |
1123 | if (ppc_obj64) |
1124 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64; | |
1125 | else if (strncmp (default_os, "aix", 3) == 0 | |
1126 | && default_os[3] >= '4' && default_os[3] <= '9') | |
2b3c4602 | 1127 | ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32; |
252b5132 | 1128 | else if (strncmp (default_os, "aix3", 4) == 0) |
2b3c4602 | 1129 | ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32; |
252b5132 | 1130 | else if (strcmp (default_cpu, "rs6000") == 0) |
2b3c4602 | 1131 | ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32; |
0baf16f2 | 1132 | else if (strncmp (default_cpu, "powerpc", 7) == 0) |
b34976b6 AM |
1133 | { |
1134 | if (default_cpu[7] == '6' && default_cpu[8] == '4') | |
1135 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64; | |
1136 | else | |
1137 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32; | |
1138 | } | |
252b5132 | 1139 | else |
99a814a1 AM |
1140 | as_fatal (_("Unknown default cpu = %s, os = %s"), |
1141 | default_cpu, default_os); | |
252b5132 RH |
1142 | } |
1143 | } | |
1144 | ||
1145 | /* Figure out the BFD architecture to use. */ | |
1146 | ||
1147 | enum bfd_architecture | |
1148 | ppc_arch () | |
1149 | { | |
1150 | const char *default_cpu = TARGET_CPU; | |
1151 | ppc_set_cpu (); | |
1152 | ||
1153 | if ((ppc_cpu & PPC_OPCODE_PPC) != 0) | |
1154 | return bfd_arch_powerpc; | |
1155 | else if ((ppc_cpu & PPC_OPCODE_POWER) != 0) | |
1156 | return bfd_arch_rs6000; | |
1157 | else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0) | |
1158 | { | |
1159 | if (strcmp (default_cpu, "rs6000") == 0) | |
1160 | return bfd_arch_rs6000; | |
0baf16f2 | 1161 | else if (strncmp (default_cpu, "powerpc", 7) == 0) |
252b5132 RH |
1162 | return bfd_arch_powerpc; |
1163 | } | |
1164 | ||
1165 | as_fatal (_("Neither Power nor PowerPC opcodes were selected.")); | |
1166 | return bfd_arch_unknown; | |
1167 | } | |
1168 | ||
7f6d05e8 CP |
1169 | unsigned long |
1170 | ppc_mach () | |
1171 | { | |
2a98c3a6 AM |
1172 | if (ppc_obj64) |
1173 | return bfd_mach_ppc64; | |
1174 | else if (ppc_arch () == bfd_arch_rs6000) | |
1175 | return bfd_mach_rs6k; | |
1176 | else | |
1177 | return bfd_mach_ppc; | |
7f6d05e8 CP |
1178 | } |
1179 | ||
81d4177b | 1180 | extern char* |
99a814a1 | 1181 | ppc_target_format () |
7f6d05e8 CP |
1182 | { |
1183 | #ifdef OBJ_COFF | |
1184 | #ifdef TE_PE | |
99a814a1 | 1185 | return target_big_endian ? "pe-powerpc" : "pe-powerpcle"; |
7f6d05e8 | 1186 | #elif TE_POWERMAC |
0baf16f2 | 1187 | return "xcoff-powermac"; |
7f6d05e8 | 1188 | #else |
eb1e0e80 | 1189 | # ifdef TE_AIX5 |
2b3c4602 | 1190 | return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000"); |
eb1e0e80 | 1191 | # else |
2b3c4602 | 1192 | return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000"); |
eb1e0e80 | 1193 | # endif |
7f6d05e8 | 1194 | #endif |
7f6d05e8 CP |
1195 | #endif |
1196 | #ifdef OBJ_ELF | |
0baf16f2 | 1197 | return (target_big_endian |
2b3c4602 AM |
1198 | ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc") |
1199 | : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle")); | |
7f6d05e8 CP |
1200 | #endif |
1201 | } | |
1202 | ||
252b5132 RH |
1203 | /* This function is called when the assembler starts up. It is called |
1204 | after the options have been parsed and the output file has been | |
1205 | opened. */ | |
1206 | ||
1207 | void | |
1208 | md_begin () | |
1209 | { | |
1210 | register const struct powerpc_opcode *op; | |
1211 | const struct powerpc_opcode *op_end; | |
1212 | const struct powerpc_macro *macro; | |
1213 | const struct powerpc_macro *macro_end; | |
b34976b6 | 1214 | bfd_boolean dup_insn = FALSE; |
252b5132 RH |
1215 | |
1216 | ppc_set_cpu (); | |
1217 | ||
75e21f08 JJ |
1218 | ppc_cie_data_alignment = ppc_obj64 ? -8 : -4; |
1219 | ||
252b5132 | 1220 | #ifdef OBJ_ELF |
81d4177b | 1221 | /* Set the ELF flags if desired. */ |
252b5132 RH |
1222 | if (ppc_flags && !msolaris) |
1223 | bfd_set_private_flags (stdoutput, ppc_flags); | |
1224 | #endif | |
1225 | ||
1226 | /* Insert the opcodes into a hash table. */ | |
1227 | ppc_hash = hash_new (); | |
1228 | ||
1229 | op_end = powerpc_opcodes + powerpc_num_opcodes; | |
1230 | for (op = powerpc_opcodes; op < op_end; op++) | |
1231 | { | |
1232 | know ((op->opcode & op->mask) == op->opcode); | |
1233 | ||
2b3c4602 | 1234 | if ((op->flags & ppc_cpu & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) != 0 |
252b5132 | 1235 | && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0 |
2b3c4602 AM |
1236 | || ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) |
1237 | == (ppc_cpu & (PPC_OPCODE_32 | PPC_OPCODE_64))) | |
23e1d84c | 1238 | || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0) |
341026c1 NC |
1239 | /* Certain instructions (eg: extsw) do not exist in the |
1240 | 32-bit BookE instruction set, but they do exist in the | |
1241 | 64-bit BookE instruction set, and other PPC instruction | |
1242 | sets. Check to see if the opcode has the BOOKE64 flag set. | |
1243 | If it does make sure that the target CPU is not the BookE32. */ | |
1244 | && ((op->flags & PPC_OPCODE_BOOKE64) == 0 | |
1245 | || (ppc_cpu & PPC_OPCODE_BOOKE64) == PPC_OPCODE_BOOKE64 | |
1246 | || (ppc_cpu & PPC_OPCODE_BOOKE) == 0) | |
23e1d84c AM |
1247 | && ((op->flags & (PPC_OPCODE_POWER4 | PPC_OPCODE_NOPOWER4)) == 0 |
1248 | || ((op->flags & PPC_OPCODE_POWER4) | |
1249 | == (ppc_cpu & PPC_OPCODE_POWER4)))) | |
252b5132 RH |
1250 | { |
1251 | const char *retval; | |
1252 | ||
1253 | retval = hash_insert (ppc_hash, op->name, (PTR) op); | |
1254 | if (retval != (const char *) NULL) | |
1255 | { | |
99a814a1 | 1256 | /* Ignore Power duplicates for -m601. */ |
252b5132 RH |
1257 | if ((ppc_cpu & PPC_OPCODE_601) != 0 |
1258 | && (op->flags & PPC_OPCODE_POWER) != 0) | |
1259 | continue; | |
1260 | ||
99a814a1 AM |
1261 | as_bad (_("Internal assembler error for instruction %s"), |
1262 | op->name); | |
b34976b6 | 1263 | dup_insn = TRUE; |
252b5132 RH |
1264 | } |
1265 | } | |
1266 | } | |
1267 | ||
1268 | /* Insert the macros into a hash table. */ | |
1269 | ppc_macro_hash = hash_new (); | |
1270 | ||
1271 | macro_end = powerpc_macros + powerpc_num_macros; | |
1272 | for (macro = powerpc_macros; macro < macro_end; macro++) | |
1273 | { | |
1274 | if ((macro->flags & ppc_cpu) != 0) | |
1275 | { | |
1276 | const char *retval; | |
1277 | ||
1278 | retval = hash_insert (ppc_macro_hash, macro->name, (PTR) macro); | |
1279 | if (retval != (const char *) NULL) | |
1280 | { | |
1281 | as_bad (_("Internal assembler error for macro %s"), macro->name); | |
b34976b6 | 1282 | dup_insn = TRUE; |
252b5132 RH |
1283 | } |
1284 | } | |
1285 | } | |
1286 | ||
1287 | if (dup_insn) | |
1288 | abort (); | |
1289 | ||
99a814a1 AM |
1290 | /* Tell the main code what the endianness is if it is not overidden |
1291 | by the user. */ | |
252b5132 RH |
1292 | if (!set_target_endian) |
1293 | { | |
1294 | set_target_endian = 1; | |
1295 | target_big_endian = PPC_BIG_ENDIAN; | |
1296 | } | |
1297 | ||
1298 | #ifdef OBJ_XCOFF | |
1299 | ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG); | |
1300 | ||
1301 | /* Create dummy symbols to serve as initial csects. This forces the | |
1302 | text csects to precede the data csects. These symbols will not | |
1303 | be output. */ | |
1304 | ppc_text_csects = symbol_make ("dummy\001"); | |
809ffe0d | 1305 | symbol_get_tc (ppc_text_csects)->within = ppc_text_csects; |
252b5132 | 1306 | ppc_data_csects = symbol_make ("dummy\001"); |
809ffe0d | 1307 | symbol_get_tc (ppc_data_csects)->within = ppc_data_csects; |
252b5132 RH |
1308 | #endif |
1309 | ||
1310 | #ifdef TE_PE | |
1311 | ||
1312 | ppc_current_section = text_section; | |
81d4177b | 1313 | ppc_previous_section = 0; |
252b5132 RH |
1314 | |
1315 | #endif | |
1316 | } | |
1317 | ||
6a0c61b7 EZ |
1318 | void |
1319 | ppc_cleanup () | |
1320 | { | |
dc1d03fc | 1321 | #ifdef OBJ_ELF |
6a0c61b7 EZ |
1322 | if (ppc_apuinfo_list == NULL) |
1323 | return; | |
1324 | ||
1325 | /* Ok, so write the section info out. We have this layout: | |
1326 | ||
1327 | byte data what | |
1328 | ---- ---- ---- | |
1329 | 0 8 length of "APUinfo\0" | |
1330 | 4 (n*4) number of APU's (4 bytes each) | |
1331 | 8 2 note type 2 | |
1332 | 12 "APUinfo\0" name | |
1333 | 20 APU#1 first APU's info | |
1334 | 24 APU#2 second APU's info | |
1335 | ... ... | |
1336 | */ | |
1337 | { | |
1338 | char *p; | |
1339 | asection *seg = now_seg; | |
1340 | subsegT subseg = now_subseg; | |
1341 | asection *apuinfo_secp = (asection *) NULL; | |
49181a6a | 1342 | unsigned int i; |
6a0c61b7 EZ |
1343 | |
1344 | /* Create the .PPC.EMB.apuinfo section. */ | |
1345 | apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0); | |
1346 | bfd_set_section_flags (stdoutput, | |
1347 | apuinfo_secp, | |
e1a9cb8e | 1348 | SEC_HAS_CONTENTS | SEC_READONLY); |
6a0c61b7 EZ |
1349 | |
1350 | p = frag_more (4); | |
1351 | md_number_to_chars (p, (valueT) 8, 4); | |
1352 | ||
1353 | p = frag_more (4); | |
e98d298c | 1354 | md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4); |
6a0c61b7 EZ |
1355 | |
1356 | p = frag_more (4); | |
1357 | md_number_to_chars (p, (valueT) 2, 4); | |
1358 | ||
1359 | p = frag_more (8); | |
1360 | strcpy (p, "APUinfo"); | |
1361 | ||
1362 | for (i = 0; i < ppc_apuinfo_num; i++) | |
1363 | { | |
b34976b6 AM |
1364 | p = frag_more (4); |
1365 | md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4); | |
6a0c61b7 EZ |
1366 | } |
1367 | ||
1368 | frag_align (2, 0, 0); | |
1369 | ||
1370 | /* We probably can't restore the current segment, for there likely | |
1371 | isn't one yet... */ | |
1372 | if (seg && subseg) | |
1373 | subseg_set (seg, subseg); | |
1374 | } | |
dc1d03fc | 1375 | #endif |
6a0c61b7 EZ |
1376 | } |
1377 | ||
252b5132 RH |
1378 | /* Insert an operand value into an instruction. */ |
1379 | ||
1380 | static unsigned long | |
1381 | ppc_insert_operand (insn, operand, val, file, line) | |
1382 | unsigned long insn; | |
1383 | const struct powerpc_operand *operand; | |
1384 | offsetT val; | |
1385 | char *file; | |
1386 | unsigned int line; | |
1387 | { | |
1388 | if (operand->bits != 32) | |
1389 | { | |
1390 | long min, max; | |
1391 | offsetT test; | |
1392 | ||
1393 | if ((operand->flags & PPC_OPERAND_SIGNED) != 0) | |
1394 | { | |
d0e9a01c | 1395 | if ((operand->flags & PPC_OPERAND_SIGNOPT) != 0) |
252b5132 RH |
1396 | max = (1 << operand->bits) - 1; |
1397 | else | |
1398 | max = (1 << (operand->bits - 1)) - 1; | |
1399 | min = - (1 << (operand->bits - 1)); | |
1400 | ||
2b3c4602 | 1401 | if (!ppc_obj64) |
252b5132 RH |
1402 | { |
1403 | /* Some people write 32 bit hex constants with the sign | |
1404 | extension done by hand. This shouldn't really be | |
1405 | valid, but, to permit this code to assemble on a 64 | |
1406 | bit host, we sign extend the 32 bit value. */ | |
1407 | if (val > 0 | |
92161534 ILT |
1408 | && (val & (offsetT) 0x80000000) != 0 |
1409 | && (val & (offsetT) 0xffffffff) == val) | |
252b5132 RH |
1410 | { |
1411 | val -= 0x80000000; | |
1412 | val -= 0x80000000; | |
1413 | } | |
1414 | } | |
1415 | } | |
1416 | else | |
1417 | { | |
1418 | max = (1 << operand->bits) - 1; | |
1419 | min = 0; | |
1420 | } | |
1421 | ||
1422 | if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0) | |
1423 | test = - val; | |
1424 | else | |
1425 | test = val; | |
1426 | ||
1427 | if (test < (offsetT) min || test > (offsetT) max) | |
1428 | { | |
1429 | const char *err = | |
1430 | _("operand out of range (%s not between %ld and %ld)"); | |
1431 | char buf[100]; | |
1432 | ||
1433 | sprint_value (buf, test); | |
0baf16f2 | 1434 | as_bad_where (file, line, err, buf, min, max); |
252b5132 RH |
1435 | } |
1436 | } | |
1437 | ||
1438 | if (operand->insert) | |
1439 | { | |
1440 | const char *errmsg; | |
1441 | ||
1442 | errmsg = NULL; | |
2b3c4602 | 1443 | insn = (*operand->insert) (insn, (long) val, ppc_cpu, &errmsg); |
252b5132 | 1444 | if (errmsg != (const char *) NULL) |
0baf16f2 | 1445 | as_bad_where (file, line, errmsg); |
252b5132 RH |
1446 | } |
1447 | else | |
1448 | insn |= (((long) val & ((1 << operand->bits) - 1)) | |
1449 | << operand->shift); | |
1450 | ||
1451 | return insn; | |
1452 | } | |
1453 | ||
1454 | \f | |
1455 | #ifdef OBJ_ELF | |
1456 | /* Parse @got, etc. and return the desired relocation. */ | |
1457 | static bfd_reloc_code_real_type | |
1458 | ppc_elf_suffix (str_p, exp_p) | |
1459 | char **str_p; | |
1460 | expressionS *exp_p; | |
1461 | { | |
1462 | struct map_bfd { | |
1463 | char *string; | |
1464 | int length; | |
15c1449b | 1465 | int reloc; |
252b5132 RH |
1466 | }; |
1467 | ||
1468 | char ident[20]; | |
1469 | char *str = *str_p; | |
1470 | char *str2; | |
1471 | int ch; | |
1472 | int len; | |
15c1449b | 1473 | const struct map_bfd *ptr; |
252b5132 | 1474 | |
bc805888 | 1475 | #define MAP(str,reloc) { str, sizeof (str)-1, reloc } |
252b5132 | 1476 | |
15c1449b | 1477 | static const struct map_bfd mapping[] = { |
cdba85ec AM |
1478 | MAP ("l", (int) BFD_RELOC_LO16), |
1479 | MAP ("h", (int) BFD_RELOC_HI16), | |
1480 | MAP ("ha", (int) BFD_RELOC_HI16_S), | |
1481 | MAP ("brtaken", (int) BFD_RELOC_PPC_B16_BRTAKEN), | |
1482 | MAP ("brntaken", (int) BFD_RELOC_PPC_B16_BRNTAKEN), | |
1483 | MAP ("got", (int) BFD_RELOC_16_GOTOFF), | |
1484 | MAP ("got@l", (int) BFD_RELOC_LO16_GOTOFF), | |
1485 | MAP ("got@h", (int) BFD_RELOC_HI16_GOTOFF), | |
1486 | MAP ("got@ha", (int) BFD_RELOC_HI16_S_GOTOFF), | |
1487 | MAP ("fixup", (int) BFD_RELOC_CTOR), | |
1488 | MAP ("plt", (int) BFD_RELOC_24_PLT_PCREL), | |
1489 | MAP ("pltrel24", (int) BFD_RELOC_24_PLT_PCREL), | |
1490 | MAP ("copy", (int) BFD_RELOC_PPC_COPY), | |
1491 | MAP ("globdat", (int) BFD_RELOC_PPC_GLOB_DAT), | |
1492 | MAP ("local24pc", (int) BFD_RELOC_PPC_LOCAL24PC), | |
1493 | MAP ("local", (int) BFD_RELOC_PPC_LOCAL24PC), | |
1494 | MAP ("pltrel", (int) BFD_RELOC_32_PLT_PCREL), | |
1495 | MAP ("plt@l", (int) BFD_RELOC_LO16_PLTOFF), | |
1496 | MAP ("plt@h", (int) BFD_RELOC_HI16_PLTOFF), | |
1497 | MAP ("plt@ha", (int) BFD_RELOC_HI16_S_PLTOFF), | |
1498 | MAP ("sdarel", (int) BFD_RELOC_GPREL16), | |
1499 | MAP ("sectoff", (int) BFD_RELOC_16_BASEREL), | |
1500 | MAP ("sectoff@l", (int) BFD_RELOC_LO16_BASEREL), | |
1501 | MAP ("sectoff@h", (int) BFD_RELOC_HI16_BASEREL), | |
1502 | MAP ("sectoff@ha", (int) BFD_RELOC_HI16_S_BASEREL), | |
1503 | MAP ("naddr", (int) BFD_RELOC_PPC_EMB_NADDR32), | |
1504 | MAP ("naddr16", (int) BFD_RELOC_PPC_EMB_NADDR16), | |
1505 | MAP ("naddr@l", (int) BFD_RELOC_PPC_EMB_NADDR16_LO), | |
1506 | MAP ("naddr@h", (int) BFD_RELOC_PPC_EMB_NADDR16_HI), | |
1507 | MAP ("naddr@ha", (int) BFD_RELOC_PPC_EMB_NADDR16_HA), | |
1508 | MAP ("sdai16", (int) BFD_RELOC_PPC_EMB_SDAI16), | |
1509 | MAP ("sda2rel", (int) BFD_RELOC_PPC_EMB_SDA2REL), | |
1510 | MAP ("sda2i16", (int) BFD_RELOC_PPC_EMB_SDA2I16), | |
1511 | MAP ("sda21", (int) BFD_RELOC_PPC_EMB_SDA21), | |
1512 | MAP ("mrkref", (int) BFD_RELOC_PPC_EMB_MRKREF), | |
1513 | MAP ("relsect", (int) BFD_RELOC_PPC_EMB_RELSEC16), | |
1514 | MAP ("relsect@l", (int) BFD_RELOC_PPC_EMB_RELST_LO), | |
1515 | MAP ("relsect@h", (int) BFD_RELOC_PPC_EMB_RELST_HI), | |
1516 | MAP ("relsect@ha", (int) BFD_RELOC_PPC_EMB_RELST_HA), | |
1517 | MAP ("bitfld", (int) BFD_RELOC_PPC_EMB_BIT_FLD), | |
1518 | MAP ("relsda", (int) BFD_RELOC_PPC_EMB_RELSDA), | |
1519 | MAP ("xgot", (int) BFD_RELOC_PPC_TOC16), | |
1520 | MAP ("tls", (int) BFD_RELOC_PPC_TLS), | |
1521 | MAP ("dtpmod", (int) BFD_RELOC_PPC_DTPMOD), | |
1522 | MAP ("dtprel", (int) BFD_RELOC_PPC_DTPREL), | |
1523 | MAP ("dtprel@l", (int) BFD_RELOC_PPC_DTPREL16_LO), | |
1524 | MAP ("dtprel@h", (int) BFD_RELOC_PPC_DTPREL16_HI), | |
1525 | MAP ("dtprel@ha", (int) BFD_RELOC_PPC_DTPREL16_HA), | |
1526 | MAP ("tprel", (int) BFD_RELOC_PPC_TPREL), | |
1527 | MAP ("tprel@l", (int) BFD_RELOC_PPC_TPREL16_LO), | |
1528 | MAP ("tprel@h", (int) BFD_RELOC_PPC_TPREL16_HI), | |
1529 | MAP ("tprel@ha", (int) BFD_RELOC_PPC_TPREL16_HA), | |
1530 | MAP ("got@tlsgd", (int) BFD_RELOC_PPC_GOT_TLSGD16), | |
1531 | MAP ("got@tlsgd@l", (int) BFD_RELOC_PPC_GOT_TLSGD16_LO), | |
1532 | MAP ("got@tlsgd@h", (int) BFD_RELOC_PPC_GOT_TLSGD16_HI), | |
1533 | MAP ("got@tlsgd@ha", (int) BFD_RELOC_PPC_GOT_TLSGD16_HA), | |
1534 | MAP ("got@tlsld", (int) BFD_RELOC_PPC_GOT_TLSLD16), | |
1535 | MAP ("got@tlsld@l", (int) BFD_RELOC_PPC_GOT_TLSLD16_LO), | |
1536 | MAP ("got@tlsld@h", (int) BFD_RELOC_PPC_GOT_TLSLD16_HI), | |
1537 | MAP ("got@tlsld@ha", (int) BFD_RELOC_PPC_GOT_TLSLD16_HA), | |
1538 | MAP ("got@dtprel", (int) BFD_RELOC_PPC_GOT_DTPREL16), | |
1539 | MAP ("got@dtprel@l", (int) BFD_RELOC_PPC_GOT_DTPREL16_LO), | |
1540 | MAP ("got@dtprel@h", (int) BFD_RELOC_PPC_GOT_DTPREL16_HI), | |
1541 | MAP ("got@dtprel@ha", (int) BFD_RELOC_PPC_GOT_DTPREL16_HA), | |
1542 | MAP ("got@tprel", (int) BFD_RELOC_PPC_GOT_TPREL16), | |
1543 | MAP ("got@tprel@l", (int) BFD_RELOC_PPC_GOT_TPREL16_LO), | |
1544 | MAP ("got@tprel@h", (int) BFD_RELOC_PPC_GOT_TPREL16_HI), | |
1545 | MAP ("got@tprel@ha", (int) BFD_RELOC_PPC_GOT_TPREL16_HA), | |
2b3c4602 AM |
1546 | /* The following are only valid for ppc64. Negative values are |
1547 | used instead of a flag. */ | |
cdba85ec AM |
1548 | MAP ("higher", - (int) BFD_RELOC_PPC64_HIGHER), |
1549 | MAP ("highera", - (int) BFD_RELOC_PPC64_HIGHER_S), | |
1550 | MAP ("highest", - (int) BFD_RELOC_PPC64_HIGHEST), | |
1551 | MAP ("highesta", - (int) BFD_RELOC_PPC64_HIGHEST_S), | |
1552 | MAP ("tocbase", - (int) BFD_RELOC_PPC64_TOC), | |
1553 | MAP ("toc", - (int) BFD_RELOC_PPC_TOC16), | |
1554 | MAP ("toc@l", - (int) BFD_RELOC_PPC64_TOC16_LO), | |
1555 | MAP ("toc@h", - (int) BFD_RELOC_PPC64_TOC16_HI), | |
1556 | MAP ("toc@ha", - (int) BFD_RELOC_PPC64_TOC16_HA), | |
1557 | MAP ("dtprel@higher", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHER), | |
1558 | MAP ("dtprel@highera", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHERA), | |
1559 | MAP ("dtprel@highest", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHEST), | |
1560 | MAP ("dtprel@highesta", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHESTA), | |
1561 | MAP ("tprel@higher", - (int) BFD_RELOC_PPC64_TPREL16_HIGHER), | |
1562 | MAP ("tprel@highera", - (int) BFD_RELOC_PPC64_TPREL16_HIGHERA), | |
1563 | MAP ("tprel@highest", - (int) BFD_RELOC_PPC64_TPREL16_HIGHEST), | |
1564 | MAP ("tprel@highesta", - (int) BFD_RELOC_PPC64_TPREL16_HIGHESTA), | |
1565 | { (char *) 0, 0, (int) BFD_RELOC_UNUSED } | |
252b5132 RH |
1566 | }; |
1567 | ||
1568 | if (*str++ != '@') | |
1569 | return BFD_RELOC_UNUSED; | |
1570 | ||
1571 | for (ch = *str, str2 = ident; | |
1572 | (str2 < ident + sizeof (ident) - 1 | |
3882b010 | 1573 | && (ISALNUM (ch) || ch == '@')); |
252b5132 RH |
1574 | ch = *++str) |
1575 | { | |
3882b010 | 1576 | *str2++ = TOLOWER (ch); |
252b5132 RH |
1577 | } |
1578 | ||
1579 | *str2 = '\0'; | |
1580 | len = str2 - ident; | |
1581 | ||
1582 | ch = ident[0]; | |
1583 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
1584 | if (ch == ptr->string[0] | |
1585 | && len == ptr->length | |
1586 | && memcmp (ident, ptr->string, ptr->length) == 0) | |
1587 | { | |
15c1449b AM |
1588 | int reloc = ptr->reloc; |
1589 | ||
2b3c4602 | 1590 | if (reloc < 0) |
15c1449b | 1591 | { |
2b3c4602 | 1592 | if (!ppc_obj64) |
15c1449b AM |
1593 | return BFD_RELOC_UNUSED; |
1594 | reloc = -reloc; | |
1595 | } | |
1596 | ||
cdba85ec | 1597 | if (!ppc_obj64) |
5f6db75a AM |
1598 | if (exp_p->X_add_number != 0 |
1599 | && (reloc == (int) BFD_RELOC_16_GOTOFF | |
1600 | || reloc == (int) BFD_RELOC_LO16_GOTOFF | |
1601 | || reloc == (int) BFD_RELOC_HI16_GOTOFF | |
1602 | || reloc == (int) BFD_RELOC_HI16_S_GOTOFF)) | |
1603 | as_warn (_("identifier+constant@got means identifier@got+constant")); | |
1604 | ||
1605 | /* Now check for identifier@suffix+constant. */ | |
1606 | if (*str == '-' || *str == '+') | |
252b5132 | 1607 | { |
5f6db75a AM |
1608 | char *orig_line = input_line_pointer; |
1609 | expressionS new_exp; | |
1610 | ||
1611 | input_line_pointer = str; | |
1612 | expression (&new_exp); | |
1613 | if (new_exp.X_op == O_constant) | |
252b5132 | 1614 | { |
5f6db75a AM |
1615 | exp_p->X_add_number += new_exp.X_add_number; |
1616 | str = input_line_pointer; | |
252b5132 | 1617 | } |
5f6db75a AM |
1618 | |
1619 | if (&input_line_pointer != str_p) | |
1620 | input_line_pointer = orig_line; | |
252b5132 | 1621 | } |
252b5132 | 1622 | *str_p = str; |
0baf16f2 | 1623 | |
2b3c4602 | 1624 | if (reloc == (int) BFD_RELOC_PPC64_TOC |
9f2b53d7 AM |
1625 | && exp_p->X_op == O_symbol |
1626 | && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0) | |
0baf16f2 | 1627 | { |
9f2b53d7 AM |
1628 | /* Change the symbol so that the dummy .TOC. symbol can be |
1629 | omitted from the object file. */ | |
0baf16f2 AM |
1630 | exp_p->X_add_symbol = &abs_symbol; |
1631 | } | |
1632 | ||
15c1449b | 1633 | return (bfd_reloc_code_real_type) reloc; |
252b5132 RH |
1634 | } |
1635 | ||
1636 | return BFD_RELOC_UNUSED; | |
1637 | } | |
1638 | ||
99a814a1 AM |
1639 | /* Like normal .long/.short/.word, except support @got, etc. |
1640 | Clobbers input_line_pointer, checks end-of-line. */ | |
252b5132 RH |
1641 | static void |
1642 | ppc_elf_cons (nbytes) | |
0baf16f2 | 1643 | register int nbytes; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */ |
252b5132 RH |
1644 | { |
1645 | expressionS exp; | |
1646 | bfd_reloc_code_real_type reloc; | |
1647 | ||
1648 | if (is_it_end_of_statement ()) | |
1649 | { | |
1650 | demand_empty_rest_of_line (); | |
1651 | return; | |
1652 | } | |
1653 | ||
1654 | do | |
1655 | { | |
1656 | expression (&exp); | |
1657 | if (exp.X_op == O_symbol | |
1658 | && *input_line_pointer == '@' | |
99a814a1 AM |
1659 | && (reloc = ppc_elf_suffix (&input_line_pointer, |
1660 | &exp)) != BFD_RELOC_UNUSED) | |
252b5132 | 1661 | { |
99a814a1 AM |
1662 | reloc_howto_type *reloc_howto; |
1663 | int size; | |
1664 | ||
1665 | reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc); | |
1666 | size = bfd_get_reloc_size (reloc_howto); | |
252b5132 RH |
1667 | |
1668 | if (size > nbytes) | |
0baf16f2 AM |
1669 | { |
1670 | as_bad (_("%s relocations do not fit in %d bytes\n"), | |
1671 | reloc_howto->name, nbytes); | |
1672 | } | |
252b5132 RH |
1673 | else |
1674 | { | |
0baf16f2 AM |
1675 | char *p; |
1676 | int offset; | |
252b5132 | 1677 | |
0baf16f2 AM |
1678 | p = frag_more (nbytes); |
1679 | offset = 0; | |
1680 | if (target_big_endian) | |
1681 | offset = nbytes - size; | |
99a814a1 AM |
1682 | fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size, |
1683 | &exp, 0, reloc); | |
252b5132 RH |
1684 | } |
1685 | } | |
1686 | else | |
1687 | emit_expr (&exp, (unsigned int) nbytes); | |
1688 | } | |
1689 | while (*input_line_pointer++ == ','); | |
1690 | ||
99a814a1 AM |
1691 | /* Put terminator back into stream. */ |
1692 | input_line_pointer--; | |
252b5132 RH |
1693 | demand_empty_rest_of_line (); |
1694 | } | |
1695 | ||
1696 | /* Solaris pseduo op to change to the .rodata section. */ | |
1697 | static void | |
1698 | ppc_elf_rdata (xxx) | |
1699 | int xxx; | |
1700 | { | |
1701 | char *save_line = input_line_pointer; | |
1702 | static char section[] = ".rodata\n"; | |
1703 | ||
99a814a1 | 1704 | /* Just pretend this is .section .rodata */ |
252b5132 RH |
1705 | input_line_pointer = section; |
1706 | obj_elf_section (xxx); | |
1707 | ||
1708 | input_line_pointer = save_line; | |
1709 | } | |
1710 | ||
99a814a1 | 1711 | /* Pseudo op to make file scope bss items. */ |
252b5132 | 1712 | static void |
99a814a1 | 1713 | ppc_elf_lcomm (xxx) |
92161534 | 1714 | int xxx ATTRIBUTE_UNUSED; |
252b5132 RH |
1715 | { |
1716 | register char *name; | |
1717 | register char c; | |
1718 | register char *p; | |
1719 | offsetT size; | |
1720 | register symbolS *symbolP; | |
1721 | offsetT align; | |
1722 | segT old_sec; | |
1723 | int old_subsec; | |
1724 | char *pfrag; | |
1725 | int align2; | |
1726 | ||
1727 | name = input_line_pointer; | |
1728 | c = get_symbol_end (); | |
1729 | ||
99a814a1 | 1730 | /* just after name is now '\0'. */ |
252b5132 RH |
1731 | p = input_line_pointer; |
1732 | *p = c; | |
1733 | SKIP_WHITESPACE (); | |
1734 | if (*input_line_pointer != ',') | |
1735 | { | |
1736 | as_bad (_("Expected comma after symbol-name: rest of line ignored.")); | |
1737 | ignore_rest_of_line (); | |
1738 | return; | |
1739 | } | |
1740 | ||
1741 | input_line_pointer++; /* skip ',' */ | |
1742 | if ((size = get_absolute_expression ()) < 0) | |
1743 | { | |
1744 | as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size); | |
1745 | ignore_rest_of_line (); | |
1746 | return; | |
1747 | } | |
1748 | ||
1749 | /* The third argument to .lcomm is the alignment. */ | |
1750 | if (*input_line_pointer != ',') | |
1751 | align = 8; | |
1752 | else | |
1753 | { | |
1754 | ++input_line_pointer; | |
1755 | align = get_absolute_expression (); | |
1756 | if (align <= 0) | |
1757 | { | |
1758 | as_warn (_("ignoring bad alignment")); | |
1759 | align = 8; | |
1760 | } | |
1761 | } | |
1762 | ||
1763 | *p = 0; | |
1764 | symbolP = symbol_find_or_make (name); | |
1765 | *p = c; | |
1766 | ||
1767 | if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) | |
1768 | { | |
1769 | as_bad (_("Ignoring attempt to re-define symbol `%s'."), | |
1770 | S_GET_NAME (symbolP)); | |
1771 | ignore_rest_of_line (); | |
1772 | return; | |
1773 | } | |
1774 | ||
1775 | if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size) | |
1776 | { | |
1777 | as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."), | |
1778 | S_GET_NAME (symbolP), | |
1779 | (long) S_GET_VALUE (symbolP), | |
1780 | (long) size); | |
1781 | ||
1782 | ignore_rest_of_line (); | |
1783 | return; | |
1784 | } | |
1785 | ||
99a814a1 | 1786 | /* Allocate_bss. */ |
252b5132 RH |
1787 | old_sec = now_seg; |
1788 | old_subsec = now_subseg; | |
1789 | if (align) | |
1790 | { | |
99a814a1 | 1791 | /* Convert to a power of 2 alignment. */ |
252b5132 RH |
1792 | for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2); |
1793 | if (align != 1) | |
1794 | { | |
1795 | as_bad (_("Common alignment not a power of 2")); | |
1796 | ignore_rest_of_line (); | |
1797 | return; | |
1798 | } | |
1799 | } | |
1800 | else | |
1801 | align2 = 0; | |
1802 | ||
1803 | record_alignment (bss_section, align2); | |
1804 | subseg_set (bss_section, 0); | |
1805 | if (align2) | |
1806 | frag_align (align2, 0, 0); | |
1807 | if (S_GET_SEGMENT (symbolP) == bss_section) | |
49309057 ILT |
1808 | symbol_get_frag (symbolP)->fr_symbol = 0; |
1809 | symbol_set_frag (symbolP, frag_now); | |
252b5132 RH |
1810 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size, |
1811 | (char *) 0); | |
1812 | *pfrag = 0; | |
1813 | S_SET_SIZE (symbolP, size); | |
1814 | S_SET_SEGMENT (symbolP, bss_section); | |
1815 | subseg_set (old_sec, old_subsec); | |
1816 | demand_empty_rest_of_line (); | |
1817 | } | |
1818 | ||
1819 | /* Validate any relocations emitted for -mrelocatable, possibly adding | |
1820 | fixups for word relocations in writable segments, so we can adjust | |
1821 | them at runtime. */ | |
1822 | static void | |
1823 | ppc_elf_validate_fix (fixp, seg) | |
1824 | fixS *fixp; | |
1825 | segT seg; | |
1826 | { | |
1827 | if (fixp->fx_done || fixp->fx_pcrel) | |
1828 | return; | |
1829 | ||
1830 | switch (shlib) | |
1831 | { | |
1832 | case SHLIB_NONE: | |
1833 | case SHLIB_PIC: | |
1834 | return; | |
1835 | ||
5d6f4f16 | 1836 | case SHLIB_MRELOCATABLE: |
252b5132 RH |
1837 | if (fixp->fx_r_type <= BFD_RELOC_UNUSED |
1838 | && fixp->fx_r_type != BFD_RELOC_16_GOTOFF | |
1839 | && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF | |
1840 | && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF | |
1841 | && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF | |
1cfc59d5 | 1842 | && fixp->fx_r_type != BFD_RELOC_16_BASEREL |
252b5132 RH |
1843 | && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL |
1844 | && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL | |
1845 | && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL | |
e138127a | 1846 | && (seg->flags & SEC_LOAD) != 0 |
252b5132 RH |
1847 | && strcmp (segment_name (seg), ".got2") != 0 |
1848 | && strcmp (segment_name (seg), ".dtors") != 0 | |
1849 | && strcmp (segment_name (seg), ".ctors") != 0 | |
1850 | && strcmp (segment_name (seg), ".fixup") != 0 | |
252b5132 RH |
1851 | && strcmp (segment_name (seg), ".gcc_except_table") != 0 |
1852 | && strcmp (segment_name (seg), ".eh_frame") != 0 | |
1853 | && strcmp (segment_name (seg), ".ex_shared") != 0) | |
1854 | { | |
1855 | if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0 | |
1856 | || fixp->fx_r_type != BFD_RELOC_CTOR) | |
1857 | { | |
1858 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1859 | _("Relocation cannot be done when using -mrelocatable")); | |
1860 | } | |
1861 | } | |
1862 | return; | |
1863 | } | |
1864 | } | |
0baf16f2 | 1865 | |
7e8d4ab4 AM |
1866 | /* Prevent elf_frob_file_before_adjust removing a weak undefined |
1867 | function descriptor sym if the corresponding code sym is used. */ | |
1868 | ||
1869 | void | |
1870 | ppc_frob_file_before_adjust () | |
0baf16f2 | 1871 | { |
7e8d4ab4 | 1872 | symbolS *symp; |
0baf16f2 | 1873 | |
7e8d4ab4 AM |
1874 | if (!ppc_obj64) |
1875 | return; | |
1876 | ||
1877 | for (symp = symbol_rootP; symp; symp = symbol_next (symp)) | |
0baf16f2 | 1878 | { |
7e8d4ab4 AM |
1879 | const char *name; |
1880 | char *dotname; | |
1881 | symbolS *dotsym; | |
1882 | size_t len; | |
1883 | ||
1884 | name = S_GET_NAME (symp); | |
1885 | if (name[0] == '.') | |
1886 | continue; | |
1887 | ||
1888 | if (! S_IS_WEAK (symp) | |
1889 | || S_IS_DEFINED (symp)) | |
1890 | continue; | |
1891 | ||
1892 | len = strlen (name) + 1; | |
1893 | dotname = xmalloc (len + 1); | |
1894 | dotname[0] = '.'; | |
1895 | memcpy (dotname + 1, name, len); | |
1896 | dotsym = symbol_find (dotname); | |
1897 | free (dotname); | |
1898 | if (dotsym != NULL && (symbol_used_p (dotsym) | |
1899 | || symbol_used_in_reloc_p (dotsym))) | |
1900 | { | |
1901 | symbol_mark_used (symp); | |
1902 | } | |
0baf16f2 AM |
1903 | } |
1904 | ||
7e8d4ab4 AM |
1905 | /* Don't emit .TOC. symbol. */ |
1906 | symp = symbol_find (".TOC."); | |
1907 | if (symp != NULL) | |
1908 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); | |
0baf16f2 | 1909 | } |
252b5132 RH |
1910 | #endif /* OBJ_ELF */ |
1911 | \f | |
1912 | #ifdef TE_PE | |
1913 | ||
1914 | /* | |
99a814a1 | 1915 | * Summary of parse_toc_entry. |
252b5132 RH |
1916 | * |
1917 | * in: Input_line_pointer points to the '[' in one of: | |
1918 | * | |
1919 | * [toc] [tocv] [toc32] [toc64] | |
1920 | * | |
1921 | * Anything else is an error of one kind or another. | |
1922 | * | |
81d4177b | 1923 | * out: |
252b5132 RH |
1924 | * return value: success or failure |
1925 | * toc_kind: kind of toc reference | |
1926 | * input_line_pointer: | |
1927 | * success: first char after the ']' | |
1928 | * failure: unchanged | |
1929 | * | |
1930 | * settings: | |
1931 | * | |
1932 | * [toc] - rv == success, toc_kind = default_toc | |
1933 | * [tocv] - rv == success, toc_kind = data_in_toc | |
1934 | * [toc32] - rv == success, toc_kind = must_be_32 | |
1935 | * [toc64] - rv == success, toc_kind = must_be_64 | |
1936 | * | |
1937 | */ | |
1938 | ||
81d4177b KH |
1939 | enum toc_size_qualifier |
1940 | { | |
252b5132 RH |
1941 | default_toc, /* The toc cell constructed should be the system default size */ |
1942 | data_in_toc, /* This is a direct reference to a toc cell */ | |
1943 | must_be_32, /* The toc cell constructed must be 32 bits wide */ | |
1944 | must_be_64 /* The toc cell constructed must be 64 bits wide */ | |
1945 | }; | |
1946 | ||
1947 | static int | |
99a814a1 | 1948 | parse_toc_entry (toc_kind) |
252b5132 RH |
1949 | enum toc_size_qualifier *toc_kind; |
1950 | { | |
1951 | char *start; | |
1952 | char *toc_spec; | |
1953 | char c; | |
1954 | enum toc_size_qualifier t; | |
1955 | ||
99a814a1 | 1956 | /* Save the input_line_pointer. */ |
252b5132 RH |
1957 | start = input_line_pointer; |
1958 | ||
99a814a1 | 1959 | /* Skip over the '[' , and whitespace. */ |
252b5132 RH |
1960 | ++input_line_pointer; |
1961 | SKIP_WHITESPACE (); | |
81d4177b | 1962 | |
99a814a1 | 1963 | /* Find the spelling of the operand. */ |
252b5132 RH |
1964 | toc_spec = input_line_pointer; |
1965 | c = get_symbol_end (); | |
1966 | ||
99a814a1 | 1967 | if (strcmp (toc_spec, "toc") == 0) |
252b5132 RH |
1968 | { |
1969 | t = default_toc; | |
1970 | } | |
99a814a1 | 1971 | else if (strcmp (toc_spec, "tocv") == 0) |
252b5132 RH |
1972 | { |
1973 | t = data_in_toc; | |
1974 | } | |
99a814a1 | 1975 | else if (strcmp (toc_spec, "toc32") == 0) |
252b5132 RH |
1976 | { |
1977 | t = must_be_32; | |
1978 | } | |
99a814a1 | 1979 | else if (strcmp (toc_spec, "toc64") == 0) |
252b5132 RH |
1980 | { |
1981 | t = must_be_64; | |
1982 | } | |
1983 | else | |
1984 | { | |
1985 | as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec); | |
99a814a1 AM |
1986 | *input_line_pointer = c; |
1987 | input_line_pointer = start; | |
252b5132 RH |
1988 | return 0; |
1989 | } | |
1990 | ||
99a814a1 AM |
1991 | /* Now find the ']'. */ |
1992 | *input_line_pointer = c; | |
252b5132 | 1993 | |
81d4177b KH |
1994 | SKIP_WHITESPACE (); /* leading whitespace could be there. */ |
1995 | c = *input_line_pointer++; /* input_line_pointer->past char in c. */ | |
252b5132 RH |
1996 | |
1997 | if (c != ']') | |
1998 | { | |
1999 | as_bad (_("syntax error: expected `]', found `%c'"), c); | |
99a814a1 | 2000 | input_line_pointer = start; |
252b5132 RH |
2001 | return 0; |
2002 | } | |
2003 | ||
99a814a1 | 2004 | *toc_kind = t; |
252b5132 RH |
2005 | return 1; |
2006 | } | |
2007 | #endif | |
2008 | \f | |
2009 | ||
dc1d03fc | 2010 | #ifdef OBJ_ELF |
6a0c61b7 EZ |
2011 | #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff)) |
2012 | static void | |
dc1d03fc | 2013 | ppc_apuinfo_section_add (apu, version) |
6a0c61b7 EZ |
2014 | unsigned int apu, version; |
2015 | { | |
2016 | unsigned int i; | |
2017 | ||
2018 | /* Check we don't already exist. */ | |
2019 | for (i = 0; i < ppc_apuinfo_num; i++) | |
dc1d03fc | 2020 | if (ppc_apuinfo_list[i] == APUID (apu, version)) |
6a0c61b7 | 2021 | return; |
b34976b6 | 2022 | |
6a0c61b7 EZ |
2023 | if (ppc_apuinfo_num == ppc_apuinfo_num_alloc) |
2024 | { | |
2025 | if (ppc_apuinfo_num_alloc == 0) | |
2026 | { | |
2027 | ppc_apuinfo_num_alloc = 4; | |
2028 | ppc_apuinfo_list = (unsigned long *) | |
2029 | xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc); | |
2030 | } | |
2031 | else | |
2032 | { | |
2033 | ppc_apuinfo_num_alloc += 4; | |
2034 | ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list, | |
2035 | sizeof (unsigned long) * ppc_apuinfo_num_alloc); | |
2036 | } | |
2037 | } | |
dc1d03fc | 2038 | ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version); |
6a0c61b7 EZ |
2039 | } |
2040 | #undef APUID | |
dc1d03fc | 2041 | #endif |
6a0c61b7 EZ |
2042 | \f |
2043 | ||
252b5132 RH |
2044 | /* We need to keep a list of fixups. We can't simply generate them as |
2045 | we go, because that would require us to first create the frag, and | |
2046 | that would screw up references to ``.''. */ | |
2047 | ||
2048 | struct ppc_fixup | |
2049 | { | |
2050 | expressionS exp; | |
2051 | int opindex; | |
2052 | bfd_reloc_code_real_type reloc; | |
2053 | }; | |
2054 | ||
2055 | #define MAX_INSN_FIXUPS (5) | |
2056 | ||
2057 | /* This routine is called for each instruction to be assembled. */ | |
2058 | ||
2059 | void | |
2060 | md_assemble (str) | |
2061 | char *str; | |
2062 | { | |
2063 | char *s; | |
2064 | const struct powerpc_opcode *opcode; | |
2065 | unsigned long insn; | |
2066 | const unsigned char *opindex_ptr; | |
2067 | int skip_optional; | |
2068 | int need_paren; | |
2069 | int next_opindex; | |
2070 | struct ppc_fixup fixups[MAX_INSN_FIXUPS]; | |
2071 | int fc; | |
2072 | char *f; | |
2073 | int i; | |
2074 | #ifdef OBJ_ELF | |
2075 | bfd_reloc_code_real_type reloc; | |
2076 | #endif | |
2077 | ||
2078 | /* Get the opcode. */ | |
3882b010 | 2079 | for (s = str; *s != '\0' && ! ISSPACE (*s); s++) |
252b5132 RH |
2080 | ; |
2081 | if (*s != '\0') | |
2082 | *s++ = '\0'; | |
2083 | ||
2084 | /* Look up the opcode in the hash table. */ | |
2085 | opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str); | |
2086 | if (opcode == (const struct powerpc_opcode *) NULL) | |
2087 | { | |
2088 | const struct powerpc_macro *macro; | |
2089 | ||
2090 | macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str); | |
2091 | if (macro == (const struct powerpc_macro *) NULL) | |
2092 | as_bad (_("Unrecognized opcode: `%s'"), str); | |
2093 | else | |
2094 | ppc_macro (s, macro); | |
2095 | ||
2096 | return; | |
2097 | } | |
2098 | ||
2099 | insn = opcode->opcode; | |
2100 | ||
2101 | str = s; | |
3882b010 | 2102 | while (ISSPACE (*str)) |
252b5132 RH |
2103 | ++str; |
2104 | ||
2105 | /* PowerPC operands are just expressions. The only real issue is | |
2106 | that a few operand types are optional. All cases which might use | |
2107 | an optional operand separate the operands only with commas (in | |
2108 | some cases parentheses are used, as in ``lwz 1,0(1)'' but such | |
2109 | cases never have optional operands). There is never more than | |
2110 | one optional operand for an instruction. So, before we start | |
2111 | seriously parsing the operands, we check to see if we have an | |
2112 | optional operand, and, if we do, we count the number of commas to | |
2113 | see whether the operand should be omitted. */ | |
2114 | skip_optional = 0; | |
2115 | for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++) | |
2116 | { | |
2117 | const struct powerpc_operand *operand; | |
2118 | ||
2119 | operand = &powerpc_operands[*opindex_ptr]; | |
2120 | if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0) | |
2121 | { | |
2122 | unsigned int opcount; | |
7fe9cf6b NC |
2123 | unsigned int num_operands_expected; |
2124 | unsigned int i; | |
252b5132 RH |
2125 | |
2126 | /* There is an optional operand. Count the number of | |
2127 | commas in the input line. */ | |
2128 | if (*str == '\0') | |
2129 | opcount = 0; | |
2130 | else | |
2131 | { | |
2132 | opcount = 1; | |
2133 | s = str; | |
2134 | while ((s = strchr (s, ',')) != (char *) NULL) | |
2135 | { | |
2136 | ++opcount; | |
2137 | ++s; | |
2138 | } | |
2139 | } | |
2140 | ||
7fe9cf6b NC |
2141 | /* Compute the number of expected operands. |
2142 | Do not count fake operands. */ | |
2143 | for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++) | |
2144 | if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0) | |
2145 | ++ num_operands_expected; | |
2146 | ||
252b5132 RH |
2147 | /* If there are fewer operands in the line then are called |
2148 | for by the instruction, we want to skip the optional | |
2149 | operand. */ | |
7fe9cf6b | 2150 | if (opcount < num_operands_expected) |
252b5132 RH |
2151 | skip_optional = 1; |
2152 | ||
2153 | break; | |
2154 | } | |
2155 | } | |
2156 | ||
2157 | /* Gather the operands. */ | |
2158 | need_paren = 0; | |
2159 | next_opindex = 0; | |
2160 | fc = 0; | |
2161 | for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++) | |
2162 | { | |
2163 | const struct powerpc_operand *operand; | |
2164 | const char *errmsg; | |
2165 | char *hold; | |
2166 | expressionS ex; | |
2167 | char endc; | |
2168 | ||
2169 | if (next_opindex == 0) | |
2170 | operand = &powerpc_operands[*opindex_ptr]; | |
2171 | else | |
2172 | { | |
2173 | operand = &powerpc_operands[next_opindex]; | |
2174 | next_opindex = 0; | |
2175 | } | |
252b5132 RH |
2176 | errmsg = NULL; |
2177 | ||
2178 | /* If this is a fake operand, then we do not expect anything | |
2179 | from the input. */ | |
2180 | if ((operand->flags & PPC_OPERAND_FAKE) != 0) | |
2181 | { | |
2b3c4602 | 2182 | insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg); |
252b5132 RH |
2183 | if (errmsg != (const char *) NULL) |
2184 | as_bad (errmsg); | |
2185 | continue; | |
2186 | } | |
2187 | ||
2188 | /* If this is an optional operand, and we are skipping it, just | |
2189 | insert a zero. */ | |
2190 | if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0 | |
2191 | && skip_optional) | |
2192 | { | |
2193 | if (operand->insert) | |
2194 | { | |
2b3c4602 | 2195 | insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg); |
252b5132 RH |
2196 | if (errmsg != (const char *) NULL) |
2197 | as_bad (errmsg); | |
2198 | } | |
2199 | if ((operand->flags & PPC_OPERAND_NEXT) != 0) | |
2200 | next_opindex = *opindex_ptr + 1; | |
2201 | continue; | |
2202 | } | |
2203 | ||
2204 | /* Gather the operand. */ | |
2205 | hold = input_line_pointer; | |
2206 | input_line_pointer = str; | |
2207 | ||
2208 | #ifdef TE_PE | |
81d4177b | 2209 | if (*input_line_pointer == '[') |
252b5132 RH |
2210 | { |
2211 | /* We are expecting something like the second argument here: | |
99a814a1 AM |
2212 | * |
2213 | * lwz r4,[toc].GS.0.static_int(rtoc) | |
2214 | * ^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
2215 | * The argument following the `]' must be a symbol name, and the | |
2216 | * register must be the toc register: 'rtoc' or '2' | |
2217 | * | |
2218 | * The effect is to 0 as the displacement field | |
2219 | * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or | |
2220 | * the appropriate variation) reloc against it based on the symbol. | |
2221 | * The linker will build the toc, and insert the resolved toc offset. | |
2222 | * | |
2223 | * Note: | |
2224 | * o The size of the toc entry is currently assumed to be | |
2225 | * 32 bits. This should not be assumed to be a hard coded | |
2226 | * number. | |
2227 | * o In an effort to cope with a change from 32 to 64 bits, | |
2228 | * there are also toc entries that are specified to be | |
2229 | * either 32 or 64 bits: | |
2230 | * lwz r4,[toc32].GS.0.static_int(rtoc) | |
2231 | * lwz r4,[toc64].GS.0.static_int(rtoc) | |
2232 | * These demand toc entries of the specified size, and the | |
2233 | * instruction probably requires it. | |
2234 | */ | |
252b5132 RH |
2235 | |
2236 | int valid_toc; | |
2237 | enum toc_size_qualifier toc_kind; | |
2238 | bfd_reloc_code_real_type toc_reloc; | |
2239 | ||
99a814a1 AM |
2240 | /* Go parse off the [tocXX] part. */ |
2241 | valid_toc = parse_toc_entry (&toc_kind); | |
252b5132 | 2242 | |
81d4177b | 2243 | if (!valid_toc) |
252b5132 | 2244 | { |
99a814a1 AM |
2245 | /* Note: message has already been issued. |
2246 | FIXME: what sort of recovery should we do? | |
2247 | demand_rest_of_line (); return; ? */ | |
252b5132 RH |
2248 | } |
2249 | ||
99a814a1 AM |
2250 | /* Now get the symbol following the ']'. */ |
2251 | expression (&ex); | |
252b5132 RH |
2252 | |
2253 | switch (toc_kind) | |
2254 | { | |
2255 | case default_toc: | |
99a814a1 AM |
2256 | /* In this case, we may not have seen the symbol yet, |
2257 | since it is allowed to appear on a .extern or .globl | |
2258 | or just be a label in the .data section. */ | |
252b5132 RH |
2259 | toc_reloc = BFD_RELOC_PPC_TOC16; |
2260 | break; | |
2261 | case data_in_toc: | |
99a814a1 AM |
2262 | /* 1. The symbol must be defined and either in the toc |
2263 | section, or a global. | |
2264 | 2. The reloc generated must have the TOCDEFN flag set | |
2265 | in upper bit mess of the reloc type. | |
2266 | FIXME: It's a little confusing what the tocv | |
2267 | qualifier can be used for. At the very least, I've | |
2268 | seen three uses, only one of which I'm sure I can | |
2269 | explain. */ | |
81d4177b KH |
2270 | if (ex.X_op == O_symbol) |
2271 | { | |
252b5132 | 2272 | assert (ex.X_add_symbol != NULL); |
fed9b18a ILT |
2273 | if (symbol_get_bfdsym (ex.X_add_symbol)->section |
2274 | != tocdata_section) | |
252b5132 | 2275 | { |
99a814a1 | 2276 | as_bad (_("[tocv] symbol is not a toc symbol")); |
252b5132 RH |
2277 | } |
2278 | } | |
2279 | ||
2280 | toc_reloc = BFD_RELOC_PPC_TOC16; | |
2281 | break; | |
2282 | case must_be_32: | |
99a814a1 AM |
2283 | /* FIXME: these next two specifically specify 32/64 bit |
2284 | toc entries. We don't support them today. Is this | |
2285 | the right way to say that? */ | |
252b5132 RH |
2286 | toc_reloc = BFD_RELOC_UNUSED; |
2287 | as_bad (_("Unimplemented toc32 expression modifier")); | |
2288 | break; | |
2289 | case must_be_64: | |
99a814a1 | 2290 | /* FIXME: see above. */ |
252b5132 RH |
2291 | toc_reloc = BFD_RELOC_UNUSED; |
2292 | as_bad (_("Unimplemented toc64 expression modifier")); | |
2293 | break; | |
2294 | default: | |
bc805888 | 2295 | fprintf (stderr, |
99a814a1 AM |
2296 | _("Unexpected return value [%d] from parse_toc_entry!\n"), |
2297 | toc_kind); | |
bc805888 | 2298 | abort (); |
252b5132 RH |
2299 | break; |
2300 | } | |
2301 | ||
2302 | /* We need to generate a fixup for this expression. */ | |
2303 | if (fc >= MAX_INSN_FIXUPS) | |
2304 | as_fatal (_("too many fixups")); | |
2305 | ||
2306 | fixups[fc].reloc = toc_reloc; | |
2307 | fixups[fc].exp = ex; | |
2308 | fixups[fc].opindex = *opindex_ptr; | |
2309 | ++fc; | |
2310 | ||
99a814a1 AM |
2311 | /* Ok. We've set up the fixup for the instruction. Now make it |
2312 | look like the constant 0 was found here. */ | |
252b5132 RH |
2313 | ex.X_unsigned = 1; |
2314 | ex.X_op = O_constant; | |
2315 | ex.X_add_number = 0; | |
2316 | ex.X_add_symbol = NULL; | |
2317 | ex.X_op_symbol = NULL; | |
2318 | } | |
2319 | ||
2320 | else | |
2321 | #endif /* TE_PE */ | |
2322 | { | |
2323 | if (! register_name (&ex)) | |
2324 | { | |
2325 | if ((operand->flags & PPC_OPERAND_CR) != 0) | |
b34976b6 | 2326 | cr_operand = TRUE; |
252b5132 | 2327 | expression (&ex); |
b34976b6 | 2328 | cr_operand = FALSE; |
252b5132 RH |
2329 | } |
2330 | } | |
2331 | ||
2332 | str = input_line_pointer; | |
2333 | input_line_pointer = hold; | |
2334 | ||
2335 | if (ex.X_op == O_illegal) | |
2336 | as_bad (_("illegal operand")); | |
2337 | else if (ex.X_op == O_absent) | |
2338 | as_bad (_("missing operand")); | |
2339 | else if (ex.X_op == O_register) | |
2340 | { | |
2341 | insn = ppc_insert_operand (insn, operand, ex.X_add_number, | |
2342 | (char *) NULL, 0); | |
2343 | } | |
2344 | else if (ex.X_op == O_constant) | |
2345 | { | |
2346 | #ifdef OBJ_ELF | |
81d4177b | 2347 | /* Allow @HA, @L, @H on constants. */ |
252b5132 RH |
2348 | char *orig_str = str; |
2349 | ||
2350 | if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED) | |
2351 | switch (reloc) | |
2352 | { | |
2353 | default: | |
2354 | str = orig_str; | |
2355 | break; | |
2356 | ||
2357 | case BFD_RELOC_LO16: | |
2358 | /* X_unsigned is the default, so if the user has done | |
0baf16f2 AM |
2359 | something which cleared it, we always produce a |
2360 | signed value. */ | |
2361 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
252b5132 RH |
2362 | ex.X_add_number &= 0xffff; |
2363 | else | |
0baf16f2 | 2364 | ex.X_add_number = SEX16 (ex.X_add_number); |
252b5132 RH |
2365 | break; |
2366 | ||
2367 | case BFD_RELOC_HI16: | |
0baf16f2 AM |
2368 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) |
2369 | ex.X_add_number = PPC_HI (ex.X_add_number); | |
2370 | else | |
2371 | ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number)); | |
252b5132 RH |
2372 | break; |
2373 | ||
2374 | case BFD_RELOC_HI16_S: | |
0baf16f2 AM |
2375 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) |
2376 | ex.X_add_number = PPC_HA (ex.X_add_number); | |
2377 | else | |
2378 | ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number)); | |
2379 | break; | |
2380 | ||
0baf16f2 AM |
2381 | case BFD_RELOC_PPC64_HIGHER: |
2382 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2383 | ex.X_add_number = PPC_HIGHER (ex.X_add_number); | |
2384 | else | |
2385 | ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number)); | |
2386 | break; | |
2387 | ||
2388 | case BFD_RELOC_PPC64_HIGHER_S: | |
2389 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2390 | ex.X_add_number = PPC_HIGHERA (ex.X_add_number); | |
2391 | else | |
2392 | ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number)); | |
252b5132 | 2393 | break; |
0baf16f2 AM |
2394 | |
2395 | case BFD_RELOC_PPC64_HIGHEST: | |
2396 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2397 | ex.X_add_number = PPC_HIGHEST (ex.X_add_number); | |
2398 | else | |
2399 | ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number)); | |
2400 | break; | |
2401 | ||
2402 | case BFD_RELOC_PPC64_HIGHEST_S: | |
2403 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2404 | ex.X_add_number = PPC_HIGHESTA (ex.X_add_number); | |
2405 | else | |
2406 | ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number)); | |
2407 | break; | |
252b5132 | 2408 | } |
0baf16f2 | 2409 | #endif /* OBJ_ELF */ |
252b5132 RH |
2410 | insn = ppc_insert_operand (insn, operand, ex.X_add_number, |
2411 | (char *) NULL, 0); | |
2412 | } | |
2413 | #ifdef OBJ_ELF | |
2414 | else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED) | |
2415 | { | |
cdba85ec AM |
2416 | /* Some TLS tweaks. */ |
2417 | switch (reloc) | |
2418 | { | |
2419 | default: | |
2420 | break; | |
2421 | case BFD_RELOC_PPC_TLS: | |
2422 | insn = ppc_insert_operand (insn, operand, ppc_obj64 ? 13 : 2, | |
2423 | (char *) NULL, 0); | |
2424 | break; | |
2425 | /* We'll only use the 32 (or 64) bit form of these relocations | |
2426 | in constants. Instructions get the 16 bit form. */ | |
2427 | case BFD_RELOC_PPC_DTPREL: | |
2428 | reloc = BFD_RELOC_PPC_DTPREL16; | |
2429 | break; | |
2430 | case BFD_RELOC_PPC_TPREL: | |
2431 | reloc = BFD_RELOC_PPC_TPREL16; | |
2432 | break; | |
2433 | } | |
2434 | ||
99a814a1 AM |
2435 | /* For the absolute forms of branches, convert the PC |
2436 | relative form back into the absolute. */ | |
252b5132 RH |
2437 | if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0) |
2438 | { | |
2439 | switch (reloc) | |
2440 | { | |
2441 | case BFD_RELOC_PPC_B26: | |
2442 | reloc = BFD_RELOC_PPC_BA26; | |
2443 | break; | |
2444 | case BFD_RELOC_PPC_B16: | |
2445 | reloc = BFD_RELOC_PPC_BA16; | |
2446 | break; | |
2447 | case BFD_RELOC_PPC_B16_BRTAKEN: | |
2448 | reloc = BFD_RELOC_PPC_BA16_BRTAKEN; | |
2449 | break; | |
2450 | case BFD_RELOC_PPC_B16_BRNTAKEN: | |
2451 | reloc = BFD_RELOC_PPC_BA16_BRNTAKEN; | |
2452 | break; | |
2453 | default: | |
2454 | break; | |
2455 | } | |
2456 | } | |
2457 | ||
2b3c4602 | 2458 | if (ppc_obj64 |
adadcc0c | 2459 | && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0) |
0baf16f2 AM |
2460 | { |
2461 | switch (reloc) | |
2462 | { | |
2463 | case BFD_RELOC_16: | |
2464 | reloc = BFD_RELOC_PPC64_ADDR16_DS; | |
2465 | break; | |
2466 | case BFD_RELOC_LO16: | |
2467 | reloc = BFD_RELOC_PPC64_ADDR16_LO_DS; | |
2468 | break; | |
2469 | case BFD_RELOC_16_GOTOFF: | |
2470 | reloc = BFD_RELOC_PPC64_GOT16_DS; | |
2471 | break; | |
2472 | case BFD_RELOC_LO16_GOTOFF: | |
2473 | reloc = BFD_RELOC_PPC64_GOT16_LO_DS; | |
2474 | break; | |
2475 | case BFD_RELOC_LO16_PLTOFF: | |
2476 | reloc = BFD_RELOC_PPC64_PLT16_LO_DS; | |
2477 | break; | |
1cfc59d5 | 2478 | case BFD_RELOC_16_BASEREL: |
0baf16f2 AM |
2479 | reloc = BFD_RELOC_PPC64_SECTOFF_DS; |
2480 | break; | |
2481 | case BFD_RELOC_LO16_BASEREL: | |
2482 | reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS; | |
2483 | break; | |
2484 | case BFD_RELOC_PPC_TOC16: | |
2485 | reloc = BFD_RELOC_PPC64_TOC16_DS; | |
2486 | break; | |
2487 | case BFD_RELOC_PPC64_TOC16_LO: | |
2488 | reloc = BFD_RELOC_PPC64_TOC16_LO_DS; | |
2489 | break; | |
2490 | case BFD_RELOC_PPC64_PLTGOT16: | |
2491 | reloc = BFD_RELOC_PPC64_PLTGOT16_DS; | |
2492 | break; | |
2493 | case BFD_RELOC_PPC64_PLTGOT16_LO: | |
2494 | reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS; | |
2495 | break; | |
cdba85ec AM |
2496 | case BFD_RELOC_PPC_DTPREL16: |
2497 | reloc = BFD_RELOC_PPC64_DTPREL16_DS; | |
2498 | break; | |
2499 | case BFD_RELOC_PPC_DTPREL16_LO: | |
2500 | reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS; | |
2501 | break; | |
2502 | case BFD_RELOC_PPC_TPREL16: | |
2503 | reloc = BFD_RELOC_PPC64_TPREL16_DS; | |
2504 | break; | |
2505 | case BFD_RELOC_PPC_TPREL16_LO: | |
2506 | reloc = BFD_RELOC_PPC64_TPREL16_LO_DS; | |
2507 | break; | |
2508 | case BFD_RELOC_PPC_GOT_DTPREL16: | |
2509 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: | |
2510 | case BFD_RELOC_PPC_GOT_TPREL16: | |
2511 | case BFD_RELOC_PPC_GOT_TPREL16_LO: | |
2512 | break; | |
0baf16f2 AM |
2513 | default: |
2514 | as_bad (_("unsupported relocation for DS offset field")); | |
2515 | break; | |
2516 | } | |
2517 | } | |
2518 | ||
252b5132 RH |
2519 | /* We need to generate a fixup for this expression. */ |
2520 | if (fc >= MAX_INSN_FIXUPS) | |
2521 | as_fatal (_("too many fixups")); | |
2522 | fixups[fc].exp = ex; | |
2523 | fixups[fc].opindex = 0; | |
2524 | fixups[fc].reloc = reloc; | |
2525 | ++fc; | |
2526 | } | |
2527 | #endif /* OBJ_ELF */ | |
2528 | ||
2529 | else | |
2530 | { | |
2531 | /* We need to generate a fixup for this expression. */ | |
2532 | if (fc >= MAX_INSN_FIXUPS) | |
2533 | as_fatal (_("too many fixups")); | |
2534 | fixups[fc].exp = ex; | |
2535 | fixups[fc].opindex = *opindex_ptr; | |
2536 | fixups[fc].reloc = BFD_RELOC_UNUSED; | |
2537 | ++fc; | |
2538 | } | |
2539 | ||
2540 | if (need_paren) | |
2541 | { | |
2542 | endc = ')'; | |
2543 | need_paren = 0; | |
2544 | } | |
2545 | else if ((operand->flags & PPC_OPERAND_PARENS) != 0) | |
2546 | { | |
2547 | endc = '('; | |
2548 | need_paren = 1; | |
2549 | } | |
2550 | else | |
2551 | endc = ','; | |
2552 | ||
2553 | /* The call to expression should have advanced str past any | |
2554 | whitespace. */ | |
2555 | if (*str != endc | |
2556 | && (endc != ',' || *str != '\0')) | |
2557 | { | |
2558 | as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc); | |
2559 | break; | |
2560 | } | |
2561 | ||
2562 | if (*str != '\0') | |
2563 | ++str; | |
2564 | } | |
2565 | ||
3882b010 | 2566 | while (ISSPACE (*str)) |
252b5132 RH |
2567 | ++str; |
2568 | ||
2569 | if (*str != '\0') | |
2570 | as_bad (_("junk at end of line: `%s'"), str); | |
2571 | ||
dc1d03fc | 2572 | #ifdef OBJ_ELF |
6a0c61b7 EZ |
2573 | /* Do we need/want a APUinfo section? */ |
2574 | if (ppc_cpu & (PPC_OPCODE_SPE | |
2575 | | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | |
2576 | | PPC_OPCODE_BRLOCK | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | |
2577 | | PPC_OPCODE_RFMCI)) | |
2578 | { | |
2579 | /* These are all version "1". */ | |
2580 | if (opcode->flags & PPC_OPCODE_SPE) | |
b34976b6 | 2581 | ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1); |
6a0c61b7 | 2582 | if (opcode->flags & PPC_OPCODE_ISEL) |
b34976b6 | 2583 | ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1); |
6a0c61b7 | 2584 | if (opcode->flags & PPC_OPCODE_EFS) |
b34976b6 | 2585 | ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1); |
6a0c61b7 | 2586 | if (opcode->flags & PPC_OPCODE_BRLOCK) |
b34976b6 | 2587 | ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1); |
6a0c61b7 | 2588 | if (opcode->flags & PPC_OPCODE_PMR) |
b34976b6 | 2589 | ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1); |
6a0c61b7 | 2590 | if (opcode->flags & PPC_OPCODE_CACHELCK) |
b34976b6 | 2591 | ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1); |
6a0c61b7 | 2592 | if (opcode->flags & PPC_OPCODE_RFMCI) |
b34976b6 | 2593 | ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1); |
6a0c61b7 | 2594 | } |
dc1d03fc | 2595 | #endif |
6a0c61b7 | 2596 | |
252b5132 RH |
2597 | /* Write out the instruction. */ |
2598 | f = frag_more (4); | |
2599 | md_number_to_chars (f, insn, 4); | |
2600 | ||
5d6f4f16 GK |
2601 | #ifdef OBJ_ELF |
2602 | dwarf2_emit_insn (4); | |
2603 | #endif | |
2604 | ||
252b5132 RH |
2605 | /* Create any fixups. At this point we do not use a |
2606 | bfd_reloc_code_real_type, but instead just use the | |
2607 | BFD_RELOC_UNUSED plus the operand index. This lets us easily | |
2608 | handle fixups for any operand type, although that is admittedly | |
2609 | not a very exciting feature. We pick a BFD reloc type in | |
94f592af | 2610 | md_apply_fix3. */ |
252b5132 RH |
2611 | for (i = 0; i < fc; i++) |
2612 | { | |
2613 | const struct powerpc_operand *operand; | |
2614 | ||
2615 | operand = &powerpc_operands[fixups[i].opindex]; | |
2616 | if (fixups[i].reloc != BFD_RELOC_UNUSED) | |
2617 | { | |
99a814a1 | 2618 | reloc_howto_type *reloc_howto; |
252b5132 RH |
2619 | int size; |
2620 | int offset; | |
2621 | fixS *fixP; | |
2622 | ||
99a814a1 | 2623 | reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc); |
252b5132 RH |
2624 | if (!reloc_howto) |
2625 | abort (); | |
2626 | ||
2627 | size = bfd_get_reloc_size (reloc_howto); | |
2628 | offset = target_big_endian ? (4 - size) : 0; | |
2629 | ||
2630 | if (size < 1 || size > 4) | |
bc805888 | 2631 | abort (); |
252b5132 | 2632 | |
99a814a1 AM |
2633 | fixP = fix_new_exp (frag_now, |
2634 | f - frag_now->fr_literal + offset, | |
2635 | size, | |
2636 | &fixups[i].exp, | |
2637 | reloc_howto->pc_relative, | |
252b5132 RH |
2638 | fixups[i].reloc); |
2639 | ||
2640 | /* Turn off complaints that the addend is too large for things like | |
2641 | foo+100000@ha. */ | |
2642 | switch (fixups[i].reloc) | |
2643 | { | |
2644 | case BFD_RELOC_16_GOTOFF: | |
2645 | case BFD_RELOC_PPC_TOC16: | |
2646 | case BFD_RELOC_LO16: | |
2647 | case BFD_RELOC_HI16: | |
2648 | case BFD_RELOC_HI16_S: | |
0baf16f2 | 2649 | #ifdef OBJ_ELF |
0baf16f2 AM |
2650 | case BFD_RELOC_PPC64_HIGHER: |
2651 | case BFD_RELOC_PPC64_HIGHER_S: | |
2652 | case BFD_RELOC_PPC64_HIGHEST: | |
2653 | case BFD_RELOC_PPC64_HIGHEST_S: | |
0baf16f2 | 2654 | #endif |
252b5132 RH |
2655 | fixP->fx_no_overflow = 1; |
2656 | break; | |
2657 | default: | |
2658 | break; | |
2659 | } | |
2660 | } | |
2661 | else | |
99a814a1 AM |
2662 | fix_new_exp (frag_now, |
2663 | f - frag_now->fr_literal, | |
2664 | 4, | |
252b5132 RH |
2665 | &fixups[i].exp, |
2666 | (operand->flags & PPC_OPERAND_RELATIVE) != 0, | |
2667 | ((bfd_reloc_code_real_type) | |
99a814a1 | 2668 | (fixups[i].opindex + (int) BFD_RELOC_UNUSED))); |
252b5132 RH |
2669 | } |
2670 | } | |
2671 | ||
2672 | /* Handle a macro. Gather all the operands, transform them as | |
2673 | described by the macro, and call md_assemble recursively. All the | |
2674 | operands are separated by commas; we don't accept parentheses | |
2675 | around operands here. */ | |
2676 | ||
2677 | static void | |
2678 | ppc_macro (str, macro) | |
2679 | char *str; | |
2680 | const struct powerpc_macro *macro; | |
2681 | { | |
2682 | char *operands[10]; | |
2683 | unsigned int count; | |
2684 | char *s; | |
2685 | unsigned int len; | |
2686 | const char *format; | |
2687 | int arg; | |
2688 | char *send; | |
2689 | char *complete; | |
2690 | ||
2691 | /* Gather the users operands into the operands array. */ | |
2692 | count = 0; | |
2693 | s = str; | |
2694 | while (1) | |
2695 | { | |
2696 | if (count >= sizeof operands / sizeof operands[0]) | |
2697 | break; | |
2698 | operands[count++] = s; | |
2699 | s = strchr (s, ','); | |
2700 | if (s == (char *) NULL) | |
2701 | break; | |
2702 | *s++ = '\0'; | |
81d4177b | 2703 | } |
252b5132 RH |
2704 | |
2705 | if (count != macro->operands) | |
2706 | { | |
2707 | as_bad (_("wrong number of operands")); | |
2708 | return; | |
2709 | } | |
2710 | ||
2711 | /* Work out how large the string must be (the size is unbounded | |
2712 | because it includes user input). */ | |
2713 | len = 0; | |
2714 | format = macro->format; | |
2715 | while (*format != '\0') | |
2716 | { | |
2717 | if (*format != '%') | |
2718 | { | |
2719 | ++len; | |
2720 | ++format; | |
2721 | } | |
2722 | else | |
2723 | { | |
2724 | arg = strtol (format + 1, &send, 10); | |
2725 | know (send != format && arg >= 0 && arg < count); | |
2726 | len += strlen (operands[arg]); | |
2727 | format = send; | |
2728 | } | |
2729 | } | |
2730 | ||
2731 | /* Put the string together. */ | |
2732 | complete = s = (char *) alloca (len + 1); | |
2733 | format = macro->format; | |
2734 | while (*format != '\0') | |
2735 | { | |
2736 | if (*format != '%') | |
2737 | *s++ = *format++; | |
2738 | else | |
2739 | { | |
2740 | arg = strtol (format + 1, &send, 10); | |
2741 | strcpy (s, operands[arg]); | |
2742 | s += strlen (s); | |
2743 | format = send; | |
2744 | } | |
2745 | } | |
2746 | *s = '\0'; | |
2747 | ||
2748 | /* Assemble the constructed instruction. */ | |
2749 | md_assemble (complete); | |
81d4177b | 2750 | } |
252b5132 RH |
2751 | \f |
2752 | #ifdef OBJ_ELF | |
99a814a1 | 2753 | /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */ |
252b5132 RH |
2754 | |
2755 | int | |
2756 | ppc_section_letter (letter, ptr_msg) | |
2757 | int letter; | |
2758 | char **ptr_msg; | |
2759 | { | |
2760 | if (letter == 'e') | |
2761 | return SHF_EXCLUDE; | |
2762 | ||
13ae64f3 | 2763 | *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string"); |
711ef82f | 2764 | return -1; |
252b5132 RH |
2765 | } |
2766 | ||
2767 | int | |
9de8d8f1 RH |
2768 | ppc_section_word (str, len) |
2769 | char *str; | |
2770 | size_t len; | |
252b5132 | 2771 | { |
9de8d8f1 RH |
2772 | if (len == 7 && strncmp (str, "exclude", 7) == 0) |
2773 | return SHF_EXCLUDE; | |
252b5132 | 2774 | |
9de8d8f1 | 2775 | return -1; |
252b5132 RH |
2776 | } |
2777 | ||
2778 | int | |
9de8d8f1 RH |
2779 | ppc_section_type (str, len) |
2780 | char *str; | |
2781 | size_t len; | |
252b5132 | 2782 | { |
9de8d8f1 RH |
2783 | if (len == 7 && strncmp (str, "ordered", 7) == 0) |
2784 | return SHT_ORDERED; | |
252b5132 | 2785 | |
9de8d8f1 | 2786 | return -1; |
252b5132 RH |
2787 | } |
2788 | ||
2789 | int | |
2790 | ppc_section_flags (flags, attr, type) | |
2791 | int flags; | |
2792 | int attr; | |
2793 | int type; | |
2794 | { | |
2795 | if (type == SHT_ORDERED) | |
2796 | flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES; | |
2797 | ||
2798 | if (attr & SHF_EXCLUDE) | |
2799 | flags |= SEC_EXCLUDE; | |
2800 | ||
2801 | return flags; | |
2802 | } | |
2803 | #endif /* OBJ_ELF */ | |
2804 | ||
2805 | \f | |
2806 | /* Pseudo-op handling. */ | |
2807 | ||
2808 | /* The .byte pseudo-op. This is similar to the normal .byte | |
2809 | pseudo-op, but it can also take a single ASCII string. */ | |
2810 | ||
2811 | static void | |
2812 | ppc_byte (ignore) | |
92161534 | 2813 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2814 | { |
2815 | if (*input_line_pointer != '\"') | |
2816 | { | |
2817 | cons (1); | |
2818 | return; | |
2819 | } | |
2820 | ||
2821 | /* Gather characters. A real double quote is doubled. Unusual | |
2822 | characters are not permitted. */ | |
2823 | ++input_line_pointer; | |
2824 | while (1) | |
2825 | { | |
2826 | char c; | |
2827 | ||
2828 | c = *input_line_pointer++; | |
2829 | ||
2830 | if (c == '\"') | |
2831 | { | |
2832 | if (*input_line_pointer != '\"') | |
2833 | break; | |
2834 | ++input_line_pointer; | |
2835 | } | |
2836 | ||
2837 | FRAG_APPEND_1_CHAR (c); | |
2838 | } | |
2839 | ||
2840 | demand_empty_rest_of_line (); | |
2841 | } | |
2842 | \f | |
2843 | #ifdef OBJ_XCOFF | |
2844 | ||
2845 | /* XCOFF specific pseudo-op handling. */ | |
2846 | ||
2847 | /* This is set if we are creating a .stabx symbol, since we don't want | |
2848 | to handle symbol suffixes for such symbols. */ | |
b34976b6 | 2849 | static bfd_boolean ppc_stab_symbol; |
252b5132 RH |
2850 | |
2851 | /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common | |
2852 | symbols in the .bss segment as though they were local common | |
1ad63b2f TR |
2853 | symbols, and uses a different smclas. The native Aix 4.3.3 assember |
2854 | aligns .comm and .lcomm to 4 bytes. */ | |
252b5132 RH |
2855 | |
2856 | static void | |
2857 | ppc_comm (lcomm) | |
2858 | int lcomm; | |
2859 | { | |
2860 | asection *current_seg = now_seg; | |
2861 | subsegT current_subseg = now_subseg; | |
2862 | char *name; | |
2863 | char endc; | |
2864 | char *end_name; | |
2865 | offsetT size; | |
2866 | offsetT align; | |
2867 | symbolS *lcomm_sym = NULL; | |
2868 | symbolS *sym; | |
2869 | char *pfrag; | |
2870 | ||
2871 | name = input_line_pointer; | |
2872 | endc = get_symbol_end (); | |
2873 | end_name = input_line_pointer; | |
2874 | *end_name = endc; | |
2875 | ||
2876 | if (*input_line_pointer != ',') | |
2877 | { | |
2878 | as_bad (_("missing size")); | |
2879 | ignore_rest_of_line (); | |
2880 | return; | |
2881 | } | |
2882 | ++input_line_pointer; | |
2883 | ||
2884 | size = get_absolute_expression (); | |
2885 | if (size < 0) | |
2886 | { | |
2887 | as_bad (_("negative size")); | |
2888 | ignore_rest_of_line (); | |
2889 | return; | |
2890 | } | |
2891 | ||
2892 | if (! lcomm) | |
2893 | { | |
2894 | /* The third argument to .comm is the alignment. */ | |
2895 | if (*input_line_pointer != ',') | |
1ad63b2f | 2896 | align = 2; |
252b5132 RH |
2897 | else |
2898 | { | |
2899 | ++input_line_pointer; | |
2900 | align = get_absolute_expression (); | |
2901 | if (align <= 0) | |
2902 | { | |
2903 | as_warn (_("ignoring bad alignment")); | |
1ad63b2f | 2904 | align = 2; |
252b5132 RH |
2905 | } |
2906 | } | |
2907 | } | |
2908 | else | |
2909 | { | |
2910 | char *lcomm_name; | |
2911 | char lcomm_endc; | |
2912 | ||
1ad63b2f | 2913 | if (size <= 4) |
252b5132 RH |
2914 | align = 2; |
2915 | else | |
2916 | align = 3; | |
2917 | ||
2918 | /* The third argument to .lcomm appears to be the real local | |
2919 | common symbol to create. References to the symbol named in | |
2920 | the first argument are turned into references to the third | |
2921 | argument. */ | |
2922 | if (*input_line_pointer != ',') | |
2923 | { | |
2924 | as_bad (_("missing real symbol name")); | |
2925 | ignore_rest_of_line (); | |
2926 | return; | |
2927 | } | |
2928 | ++input_line_pointer; | |
2929 | ||
2930 | lcomm_name = input_line_pointer; | |
2931 | lcomm_endc = get_symbol_end (); | |
81d4177b | 2932 | |
252b5132 RH |
2933 | lcomm_sym = symbol_find_or_make (lcomm_name); |
2934 | ||
2935 | *input_line_pointer = lcomm_endc; | |
2936 | } | |
2937 | ||
2938 | *end_name = '\0'; | |
2939 | sym = symbol_find_or_make (name); | |
2940 | *end_name = endc; | |
2941 | ||
2942 | if (S_IS_DEFINED (sym) | |
2943 | || S_GET_VALUE (sym) != 0) | |
2944 | { | |
2945 | as_bad (_("attempt to redefine symbol")); | |
2946 | ignore_rest_of_line (); | |
2947 | return; | |
2948 | } | |
81d4177b | 2949 | |
252b5132 | 2950 | record_alignment (bss_section, align); |
81d4177b | 2951 | |
252b5132 RH |
2952 | if (! lcomm |
2953 | || ! S_IS_DEFINED (lcomm_sym)) | |
2954 | { | |
2955 | symbolS *def_sym; | |
2956 | offsetT def_size; | |
2957 | ||
2958 | if (! lcomm) | |
2959 | { | |
2960 | def_sym = sym; | |
2961 | def_size = size; | |
2962 | S_SET_EXTERNAL (sym); | |
2963 | } | |
2964 | else | |
2965 | { | |
809ffe0d | 2966 | symbol_get_tc (lcomm_sym)->output = 1; |
252b5132 RH |
2967 | def_sym = lcomm_sym; |
2968 | def_size = 0; | |
2969 | } | |
2970 | ||
2971 | subseg_set (bss_section, 1); | |
2972 | frag_align (align, 0, 0); | |
81d4177b | 2973 | |
809ffe0d | 2974 | symbol_set_frag (def_sym, frag_now); |
252b5132 RH |
2975 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym, |
2976 | def_size, (char *) NULL); | |
2977 | *pfrag = 0; | |
2978 | S_SET_SEGMENT (def_sym, bss_section); | |
809ffe0d | 2979 | symbol_get_tc (def_sym)->align = align; |
252b5132 RH |
2980 | } |
2981 | else if (lcomm) | |
2982 | { | |
2983 | /* Align the size of lcomm_sym. */ | |
809ffe0d ILT |
2984 | symbol_get_frag (lcomm_sym)->fr_offset = |
2985 | ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1) | |
252b5132 | 2986 | &~ ((1 << align) - 1)); |
809ffe0d ILT |
2987 | if (align > symbol_get_tc (lcomm_sym)->align) |
2988 | symbol_get_tc (lcomm_sym)->align = align; | |
252b5132 RH |
2989 | } |
2990 | ||
2991 | if (lcomm) | |
2992 | { | |
2993 | /* Make sym an offset from lcomm_sym. */ | |
2994 | S_SET_SEGMENT (sym, bss_section); | |
809ffe0d ILT |
2995 | symbol_set_frag (sym, symbol_get_frag (lcomm_sym)); |
2996 | S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset); | |
2997 | symbol_get_frag (lcomm_sym)->fr_offset += size; | |
252b5132 RH |
2998 | } |
2999 | ||
3000 | subseg_set (current_seg, current_subseg); | |
3001 | ||
3002 | demand_empty_rest_of_line (); | |
3003 | } | |
3004 | ||
3005 | /* The .csect pseudo-op. This switches us into a different | |
3006 | subsegment. The first argument is a symbol whose value is the | |
3007 | start of the .csect. In COFF, csect symbols get special aux | |
3008 | entries defined by the x_csect field of union internal_auxent. The | |
3009 | optional second argument is the alignment (the default is 2). */ | |
3010 | ||
3011 | static void | |
3012 | ppc_csect (ignore) | |
5480ccf3 | 3013 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3014 | { |
3015 | char *name; | |
3016 | char endc; | |
3017 | symbolS *sym; | |
931e13a6 | 3018 | offsetT align; |
252b5132 RH |
3019 | |
3020 | name = input_line_pointer; | |
3021 | endc = get_symbol_end (); | |
81d4177b | 3022 | |
252b5132 RH |
3023 | sym = symbol_find_or_make (name); |
3024 | ||
3025 | *input_line_pointer = endc; | |
3026 | ||
3027 | if (S_GET_NAME (sym)[0] == '\0') | |
3028 | { | |
3029 | /* An unnamed csect is assumed to be [PR]. */ | |
809ffe0d | 3030 | symbol_get_tc (sym)->class = XMC_PR; |
252b5132 RH |
3031 | } |
3032 | ||
931e13a6 | 3033 | align = 2; |
252b5132 RH |
3034 | if (*input_line_pointer == ',') |
3035 | { | |
3036 | ++input_line_pointer; | |
931e13a6 | 3037 | align = get_absolute_expression (); |
252b5132 RH |
3038 | } |
3039 | ||
931e13a6 AM |
3040 | ppc_change_csect (sym, align); |
3041 | ||
252b5132 RH |
3042 | demand_empty_rest_of_line (); |
3043 | } | |
3044 | ||
3045 | /* Change to a different csect. */ | |
3046 | ||
3047 | static void | |
931e13a6 | 3048 | ppc_change_csect (sym, align) |
252b5132 | 3049 | symbolS *sym; |
931e13a6 | 3050 | offsetT align; |
252b5132 RH |
3051 | { |
3052 | if (S_IS_DEFINED (sym)) | |
809ffe0d | 3053 | subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg); |
252b5132 RH |
3054 | else |
3055 | { | |
3056 | symbolS **list_ptr; | |
3057 | int after_toc; | |
3058 | int hold_chunksize; | |
3059 | symbolS *list; | |
931e13a6 AM |
3060 | int is_code; |
3061 | segT sec; | |
252b5132 RH |
3062 | |
3063 | /* This is a new csect. We need to look at the symbol class to | |
3064 | figure out whether it should go in the text section or the | |
3065 | data section. */ | |
3066 | after_toc = 0; | |
931e13a6 | 3067 | is_code = 0; |
809ffe0d | 3068 | switch (symbol_get_tc (sym)->class) |
252b5132 RH |
3069 | { |
3070 | case XMC_PR: | |
3071 | case XMC_RO: | |
3072 | case XMC_DB: | |
3073 | case XMC_GL: | |
3074 | case XMC_XO: | |
3075 | case XMC_SV: | |
3076 | case XMC_TI: | |
3077 | case XMC_TB: | |
3078 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3079 | symbol_get_tc (sym)->subseg = ppc_text_subsegment; |
252b5132 RH |
3080 | ++ppc_text_subsegment; |
3081 | list_ptr = &ppc_text_csects; | |
931e13a6 | 3082 | is_code = 1; |
252b5132 RH |
3083 | break; |
3084 | case XMC_RW: | |
3085 | case XMC_TC0: | |
3086 | case XMC_TC: | |
3087 | case XMC_DS: | |
3088 | case XMC_UA: | |
3089 | case XMC_BS: | |
3090 | case XMC_UC: | |
3091 | if (ppc_toc_csect != NULL | |
809ffe0d ILT |
3092 | && (symbol_get_tc (ppc_toc_csect)->subseg + 1 |
3093 | == ppc_data_subsegment)) | |
252b5132 RH |
3094 | after_toc = 1; |
3095 | S_SET_SEGMENT (sym, data_section); | |
809ffe0d | 3096 | symbol_get_tc (sym)->subseg = ppc_data_subsegment; |
252b5132 RH |
3097 | ++ppc_data_subsegment; |
3098 | list_ptr = &ppc_data_csects; | |
3099 | break; | |
3100 | default: | |
3101 | abort (); | |
3102 | } | |
3103 | ||
3104 | /* We set the obstack chunk size to a small value before | |
99a814a1 AM |
3105 | changing subsegments, so that we don't use a lot of memory |
3106 | space for what may be a small section. */ | |
252b5132 RH |
3107 | hold_chunksize = chunksize; |
3108 | chunksize = 64; | |
3109 | ||
931e13a6 AM |
3110 | sec = subseg_new (segment_name (S_GET_SEGMENT (sym)), |
3111 | symbol_get_tc (sym)->subseg); | |
252b5132 RH |
3112 | |
3113 | chunksize = hold_chunksize; | |
3114 | ||
3115 | if (after_toc) | |
3116 | ppc_after_toc_frag = frag_now; | |
3117 | ||
931e13a6 AM |
3118 | record_alignment (sec, align); |
3119 | if (is_code) | |
3120 | frag_align_code (align, 0); | |
3121 | else | |
3122 | frag_align (align, 0, 0); | |
3123 | ||
809ffe0d | 3124 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3125 | S_SET_VALUE (sym, (valueT) frag_now_fix ()); |
3126 | ||
931e13a6 | 3127 | symbol_get_tc (sym)->align = align; |
809ffe0d ILT |
3128 | symbol_get_tc (sym)->output = 1; |
3129 | symbol_get_tc (sym)->within = sym; | |
81d4177b | 3130 | |
252b5132 | 3131 | for (list = *list_ptr; |
809ffe0d ILT |
3132 | symbol_get_tc (list)->next != (symbolS *) NULL; |
3133 | list = symbol_get_tc (list)->next) | |
252b5132 | 3134 | ; |
809ffe0d | 3135 | symbol_get_tc (list)->next = sym; |
81d4177b | 3136 | |
252b5132 | 3137 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); |
809ffe0d ILT |
3138 | symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP, |
3139 | &symbol_lastP); | |
252b5132 RH |
3140 | } |
3141 | ||
3142 | ppc_current_csect = sym; | |
3143 | } | |
3144 | ||
3145 | /* This function handles the .text and .data pseudo-ops. These | |
3146 | pseudo-ops aren't really used by XCOFF; we implement them for the | |
3147 | convenience of people who aren't used to XCOFF. */ | |
3148 | ||
3149 | static void | |
3150 | ppc_section (type) | |
3151 | int type; | |
3152 | { | |
3153 | const char *name; | |
3154 | symbolS *sym; | |
3155 | ||
3156 | if (type == 't') | |
3157 | name = ".text[PR]"; | |
3158 | else if (type == 'd') | |
3159 | name = ".data[RW]"; | |
3160 | else | |
3161 | abort (); | |
3162 | ||
3163 | sym = symbol_find_or_make (name); | |
3164 | ||
931e13a6 | 3165 | ppc_change_csect (sym, 2); |
252b5132 RH |
3166 | |
3167 | demand_empty_rest_of_line (); | |
3168 | } | |
3169 | ||
3170 | /* This function handles the .section pseudo-op. This is mostly to | |
3171 | give an error, since XCOFF only supports .text, .data and .bss, but | |
3172 | we do permit the user to name the text or data section. */ | |
3173 | ||
3174 | static void | |
3175 | ppc_named_section (ignore) | |
5480ccf3 | 3176 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3177 | { |
3178 | char *user_name; | |
3179 | const char *real_name; | |
3180 | char c; | |
3181 | symbolS *sym; | |
3182 | ||
3183 | user_name = input_line_pointer; | |
3184 | c = get_symbol_end (); | |
3185 | ||
3186 | if (strcmp (user_name, ".text") == 0) | |
3187 | real_name = ".text[PR]"; | |
3188 | else if (strcmp (user_name, ".data") == 0) | |
3189 | real_name = ".data[RW]"; | |
3190 | else | |
3191 | { | |
3192 | as_bad (_("The XCOFF file format does not support arbitrary sections")); | |
3193 | *input_line_pointer = c; | |
3194 | ignore_rest_of_line (); | |
3195 | return; | |
3196 | } | |
3197 | ||
3198 | *input_line_pointer = c; | |
3199 | ||
3200 | sym = symbol_find_or_make (real_name); | |
3201 | ||
931e13a6 | 3202 | ppc_change_csect (sym, 2); |
252b5132 RH |
3203 | |
3204 | demand_empty_rest_of_line (); | |
3205 | } | |
3206 | ||
3207 | /* The .extern pseudo-op. We create an undefined symbol. */ | |
3208 | ||
3209 | static void | |
3210 | ppc_extern (ignore) | |
5480ccf3 | 3211 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3212 | { |
3213 | char *name; | |
3214 | char endc; | |
3215 | ||
3216 | name = input_line_pointer; | |
3217 | endc = get_symbol_end (); | |
3218 | ||
3219 | (void) symbol_find_or_make (name); | |
3220 | ||
3221 | *input_line_pointer = endc; | |
3222 | ||
3223 | demand_empty_rest_of_line (); | |
3224 | } | |
3225 | ||
3226 | /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */ | |
3227 | ||
3228 | static void | |
3229 | ppc_lglobl (ignore) | |
5480ccf3 | 3230 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3231 | { |
3232 | char *name; | |
3233 | char endc; | |
3234 | symbolS *sym; | |
3235 | ||
3236 | name = input_line_pointer; | |
3237 | endc = get_symbol_end (); | |
3238 | ||
3239 | sym = symbol_find_or_make (name); | |
3240 | ||
3241 | *input_line_pointer = endc; | |
3242 | ||
809ffe0d | 3243 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3244 | |
3245 | demand_empty_rest_of_line (); | |
3246 | } | |
3247 | ||
3248 | /* The .rename pseudo-op. The RS/6000 assembler can rename symbols, | |
3249 | although I don't know why it bothers. */ | |
3250 | ||
3251 | static void | |
3252 | ppc_rename (ignore) | |
5480ccf3 | 3253 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3254 | { |
3255 | char *name; | |
3256 | char endc; | |
3257 | symbolS *sym; | |
3258 | int len; | |
3259 | ||
3260 | name = input_line_pointer; | |
3261 | endc = get_symbol_end (); | |
3262 | ||
3263 | sym = symbol_find_or_make (name); | |
3264 | ||
3265 | *input_line_pointer = endc; | |
3266 | ||
3267 | if (*input_line_pointer != ',') | |
3268 | { | |
3269 | as_bad (_("missing rename string")); | |
3270 | ignore_rest_of_line (); | |
3271 | return; | |
3272 | } | |
3273 | ++input_line_pointer; | |
3274 | ||
809ffe0d | 3275 | symbol_get_tc (sym)->real_name = demand_copy_C_string (&len); |
252b5132 RH |
3276 | |
3277 | demand_empty_rest_of_line (); | |
3278 | } | |
3279 | ||
3280 | /* The .stabx pseudo-op. This is similar to a normal .stabs | |
3281 | pseudo-op, but slightly different. A sample is | |
3282 | .stabx "main:F-1",.main,142,0 | |
3283 | The first argument is the symbol name to create. The second is the | |
3284 | value, and the third is the storage class. The fourth seems to be | |
3285 | always zero, and I am assuming it is the type. */ | |
3286 | ||
3287 | static void | |
3288 | ppc_stabx (ignore) | |
5480ccf3 | 3289 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3290 | { |
3291 | char *name; | |
3292 | int len; | |
3293 | symbolS *sym; | |
3294 | expressionS exp; | |
3295 | ||
3296 | name = demand_copy_C_string (&len); | |
3297 | ||
3298 | if (*input_line_pointer != ',') | |
3299 | { | |
3300 | as_bad (_("missing value")); | |
3301 | return; | |
3302 | } | |
3303 | ++input_line_pointer; | |
3304 | ||
b34976b6 | 3305 | ppc_stab_symbol = TRUE; |
252b5132 | 3306 | sym = symbol_make (name); |
b34976b6 | 3307 | ppc_stab_symbol = FALSE; |
252b5132 | 3308 | |
809ffe0d | 3309 | symbol_get_tc (sym)->real_name = name; |
252b5132 RH |
3310 | |
3311 | (void) expression (&exp); | |
3312 | ||
3313 | switch (exp.X_op) | |
3314 | { | |
3315 | case O_illegal: | |
3316 | case O_absent: | |
3317 | case O_big: | |
3318 | as_bad (_("illegal .stabx expression; zero assumed")); | |
3319 | exp.X_add_number = 0; | |
3320 | /* Fall through. */ | |
3321 | case O_constant: | |
3322 | S_SET_VALUE (sym, (valueT) exp.X_add_number); | |
809ffe0d | 3323 | symbol_set_frag (sym, &zero_address_frag); |
252b5132 RH |
3324 | break; |
3325 | ||
3326 | case O_symbol: | |
3327 | if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section) | |
809ffe0d | 3328 | symbol_set_value_expression (sym, &exp); |
252b5132 RH |
3329 | else |
3330 | { | |
3331 | S_SET_VALUE (sym, | |
3332 | exp.X_add_number + S_GET_VALUE (exp.X_add_symbol)); | |
809ffe0d | 3333 | symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol)); |
252b5132 RH |
3334 | } |
3335 | break; | |
3336 | ||
3337 | default: | |
3338 | /* The value is some complex expression. This will probably | |
99a814a1 AM |
3339 | fail at some later point, but this is probably the right |
3340 | thing to do here. */ | |
809ffe0d | 3341 | symbol_set_value_expression (sym, &exp); |
252b5132 RH |
3342 | break; |
3343 | } | |
3344 | ||
3345 | S_SET_SEGMENT (sym, ppc_coff_debug_section); | |
809ffe0d | 3346 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3347 | |
3348 | if (*input_line_pointer != ',') | |
3349 | { | |
3350 | as_bad (_("missing class")); | |
3351 | return; | |
3352 | } | |
3353 | ++input_line_pointer; | |
3354 | ||
3355 | S_SET_STORAGE_CLASS (sym, get_absolute_expression ()); | |
3356 | ||
3357 | if (*input_line_pointer != ',') | |
3358 | { | |
3359 | as_bad (_("missing type")); | |
3360 | return; | |
3361 | } | |
3362 | ++input_line_pointer; | |
3363 | ||
3364 | S_SET_DATA_TYPE (sym, get_absolute_expression ()); | |
3365 | ||
809ffe0d | 3366 | symbol_get_tc (sym)->output = 1; |
252b5132 | 3367 | |
6877bb43 | 3368 | if (S_GET_STORAGE_CLASS (sym) == C_STSYM) { |
99a814a1 | 3369 | |
809ffe0d | 3370 | symbol_get_tc (sym)->within = ppc_current_block; |
252b5132 | 3371 | |
41ea10b1 | 3372 | /* In this case : |
99a814a1 | 3373 | |
41ea10b1 TR |
3374 | .bs name |
3375 | .stabx "z",arrays_,133,0 | |
3376 | .es | |
99a814a1 | 3377 | |
41ea10b1 | 3378 | .comm arrays_,13768,3 |
99a814a1 | 3379 | |
41ea10b1 TR |
3380 | resolve_symbol_value will copy the exp's "within" into sym's when the |
3381 | offset is 0. Since this seems to be corner case problem, | |
3382 | only do the correction for storage class C_STSYM. A better solution | |
0baf16f2 | 3383 | would be to have the tc field updated in ppc_symbol_new_hook. */ |
99a814a1 AM |
3384 | |
3385 | if (exp.X_op == O_symbol) | |
41ea10b1 TR |
3386 | { |
3387 | symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block; | |
3388 | } | |
6877bb43 | 3389 | } |
99a814a1 | 3390 | |
252b5132 RH |
3391 | if (exp.X_op != O_symbol |
3392 | || ! S_IS_EXTERNAL (exp.X_add_symbol) | |
3393 | || S_GET_SEGMENT (exp.X_add_symbol) != bss_section) | |
3394 | ppc_frob_label (sym); | |
3395 | else | |
3396 | { | |
3397 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
3398 | symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP); | |
809ffe0d ILT |
3399 | if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol) |
3400 | symbol_get_tc (ppc_current_csect)->within = sym; | |
252b5132 RH |
3401 | } |
3402 | ||
3403 | demand_empty_rest_of_line (); | |
3404 | } | |
3405 | ||
3406 | /* The .function pseudo-op. This takes several arguments. The first | |
3407 | argument seems to be the external name of the symbol. The second | |
3408 | argment seems to be the label for the start of the function. gcc | |
3409 | uses the same name for both. I have no idea what the third and | |
3410 | fourth arguments are meant to be. The optional fifth argument is | |
3411 | an expression for the size of the function. In COFF this symbol | |
3412 | gets an aux entry like that used for a csect. */ | |
3413 | ||
3414 | static void | |
3415 | ppc_function (ignore) | |
5480ccf3 | 3416 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3417 | { |
3418 | char *name; | |
3419 | char endc; | |
3420 | char *s; | |
3421 | symbolS *ext_sym; | |
3422 | symbolS *lab_sym; | |
3423 | ||
3424 | name = input_line_pointer; | |
3425 | endc = get_symbol_end (); | |
3426 | ||
3427 | /* Ignore any [PR] suffix. */ | |
3428 | name = ppc_canonicalize_symbol_name (name); | |
3429 | s = strchr (name, '['); | |
3430 | if (s != (char *) NULL | |
3431 | && strcmp (s + 1, "PR]") == 0) | |
3432 | *s = '\0'; | |
3433 | ||
3434 | ext_sym = symbol_find_or_make (name); | |
3435 | ||
3436 | *input_line_pointer = endc; | |
3437 | ||
3438 | if (*input_line_pointer != ',') | |
3439 | { | |
3440 | as_bad (_("missing symbol name")); | |
3441 | ignore_rest_of_line (); | |
3442 | return; | |
3443 | } | |
3444 | ++input_line_pointer; | |
3445 | ||
3446 | name = input_line_pointer; | |
3447 | endc = get_symbol_end (); | |
3448 | ||
3449 | lab_sym = symbol_find_or_make (name); | |
3450 | ||
3451 | *input_line_pointer = endc; | |
3452 | ||
3453 | if (ext_sym != lab_sym) | |
3454 | { | |
809ffe0d ILT |
3455 | expressionS exp; |
3456 | ||
3457 | exp.X_op = O_symbol; | |
3458 | exp.X_add_symbol = lab_sym; | |
3459 | exp.X_op_symbol = NULL; | |
3460 | exp.X_add_number = 0; | |
3461 | exp.X_unsigned = 0; | |
3462 | symbol_set_value_expression (ext_sym, &exp); | |
252b5132 RH |
3463 | } |
3464 | ||
809ffe0d ILT |
3465 | if (symbol_get_tc (ext_sym)->class == -1) |
3466 | symbol_get_tc (ext_sym)->class = XMC_PR; | |
3467 | symbol_get_tc (ext_sym)->output = 1; | |
252b5132 RH |
3468 | |
3469 | if (*input_line_pointer == ',') | |
3470 | { | |
3471 | expressionS ignore; | |
3472 | ||
3473 | /* Ignore the third argument. */ | |
3474 | ++input_line_pointer; | |
3475 | expression (&ignore); | |
3476 | if (*input_line_pointer == ',') | |
3477 | { | |
3478 | /* Ignore the fourth argument. */ | |
3479 | ++input_line_pointer; | |
3480 | expression (&ignore); | |
3481 | if (*input_line_pointer == ',') | |
3482 | { | |
3483 | /* The fifth argument is the function size. */ | |
3484 | ++input_line_pointer; | |
809ffe0d ILT |
3485 | symbol_get_tc (ext_sym)->size = symbol_new ("L0\001", |
3486 | absolute_section, | |
3487 | (valueT) 0, | |
3488 | &zero_address_frag); | |
3489 | pseudo_set (symbol_get_tc (ext_sym)->size); | |
252b5132 RH |
3490 | } |
3491 | } | |
3492 | } | |
3493 | ||
3494 | S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT); | |
3495 | SF_SET_FUNCTION (ext_sym); | |
3496 | SF_SET_PROCESS (ext_sym); | |
3497 | coff_add_linesym (ext_sym); | |
3498 | ||
3499 | demand_empty_rest_of_line (); | |
3500 | } | |
3501 | ||
3502 | /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named | |
8642cce8 TR |
3503 | ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym |
3504 | with the correct line number */ | |
5d6255fe | 3505 | |
8642cce8 | 3506 | static symbolS *saved_bi_sym = 0; |
252b5132 RH |
3507 | |
3508 | static void | |
3509 | ppc_bf (ignore) | |
5480ccf3 | 3510 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3511 | { |
3512 | symbolS *sym; | |
3513 | ||
3514 | sym = symbol_make (".bf"); | |
3515 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3516 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3517 | S_SET_VALUE (sym, frag_now_fix ()); |
3518 | S_SET_STORAGE_CLASS (sym, C_FCN); | |
3519 | ||
3520 | coff_line_base = get_absolute_expression (); | |
3521 | ||
3522 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3523 | SA_SET_SYM_LNNO (sym, coff_line_base); | |
3524 | ||
8642cce8 | 3525 | /* Line number for bi. */ |
5d6255fe | 3526 | if (saved_bi_sym) |
8642cce8 TR |
3527 | { |
3528 | S_SET_VALUE (saved_bi_sym, coff_n_line_nos); | |
3529 | saved_bi_sym = 0; | |
3530 | } | |
5d6255fe | 3531 | |
8642cce8 | 3532 | |
809ffe0d | 3533 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3534 | |
3535 | ppc_frob_label (sym); | |
3536 | ||
3537 | demand_empty_rest_of_line (); | |
3538 | } | |
3539 | ||
3540 | /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named | |
3541 | ".ef", except that the line number is absolute, not relative to the | |
3542 | most recent ".bf" symbol. */ | |
3543 | ||
3544 | static void | |
3545 | ppc_ef (ignore) | |
5480ccf3 | 3546 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3547 | { |
3548 | symbolS *sym; | |
3549 | ||
3550 | sym = symbol_make (".ef"); | |
3551 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3552 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3553 | S_SET_VALUE (sym, frag_now_fix ()); |
3554 | S_SET_STORAGE_CLASS (sym, C_FCN); | |
3555 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3556 | SA_SET_SYM_LNNO (sym, get_absolute_expression ()); | |
809ffe0d | 3557 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3558 | |
3559 | ppc_frob_label (sym); | |
3560 | ||
3561 | demand_empty_rest_of_line (); | |
3562 | } | |
3563 | ||
3564 | /* The .bi and .ei pseudo-ops. These take a string argument and | |
3565 | generates a C_BINCL or C_EINCL symbol, which goes at the start of | |
8642cce8 TR |
3566 | the symbol list. The value of .bi will be know when the next .bf |
3567 | is encountered. */ | |
252b5132 RH |
3568 | |
3569 | static void | |
3570 | ppc_biei (ei) | |
3571 | int ei; | |
3572 | { | |
3573 | static symbolS *last_biei; | |
3574 | ||
3575 | char *name; | |
3576 | int len; | |
3577 | symbolS *sym; | |
3578 | symbolS *look; | |
3579 | ||
3580 | name = demand_copy_C_string (&len); | |
3581 | ||
3582 | /* The value of these symbols is actually file offset. Here we set | |
3583 | the value to the index into the line number entries. In | |
3584 | ppc_frob_symbols we set the fix_line field, which will cause BFD | |
3585 | to do the right thing. */ | |
3586 | ||
3587 | sym = symbol_make (name); | |
3588 | /* obj-coff.c currently only handles line numbers correctly in the | |
3589 | .text section. */ | |
3590 | S_SET_SEGMENT (sym, text_section); | |
3591 | S_SET_VALUE (sym, coff_n_line_nos); | |
809ffe0d | 3592 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3593 | |
3594 | S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL); | |
809ffe0d | 3595 | symbol_get_tc (sym)->output = 1; |
81d4177b | 3596 | |
8642cce8 | 3597 | /* Save bi. */ |
5d6255fe | 3598 | if (ei) |
8642cce8 TR |
3599 | saved_bi_sym = 0; |
3600 | else | |
3601 | saved_bi_sym = sym; | |
3602 | ||
252b5132 RH |
3603 | for (look = last_biei ? last_biei : symbol_rootP; |
3604 | (look != (symbolS *) NULL | |
3605 | && (S_GET_STORAGE_CLASS (look) == C_FILE | |
3606 | || S_GET_STORAGE_CLASS (look) == C_BINCL | |
3607 | || S_GET_STORAGE_CLASS (look) == C_EINCL)); | |
3608 | look = symbol_next (look)) | |
3609 | ; | |
3610 | if (look != (symbolS *) NULL) | |
3611 | { | |
3612 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
3613 | symbol_insert (sym, look, &symbol_rootP, &symbol_lastP); | |
3614 | last_biei = sym; | |
3615 | } | |
3616 | ||
3617 | demand_empty_rest_of_line (); | |
3618 | } | |
3619 | ||
3620 | /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs". | |
3621 | There is one argument, which is a csect symbol. The value of the | |
3622 | .bs symbol is the index of this csect symbol. */ | |
3623 | ||
3624 | static void | |
3625 | ppc_bs (ignore) | |
5480ccf3 | 3626 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3627 | { |
3628 | char *name; | |
3629 | char endc; | |
3630 | symbolS *csect; | |
3631 | symbolS *sym; | |
3632 | ||
3633 | if (ppc_current_block != NULL) | |
3634 | as_bad (_("nested .bs blocks")); | |
3635 | ||
3636 | name = input_line_pointer; | |
3637 | endc = get_symbol_end (); | |
3638 | ||
3639 | csect = symbol_find_or_make (name); | |
3640 | ||
3641 | *input_line_pointer = endc; | |
3642 | ||
3643 | sym = symbol_make (".bs"); | |
3644 | S_SET_SEGMENT (sym, now_seg); | |
3645 | S_SET_STORAGE_CLASS (sym, C_BSTAT); | |
809ffe0d ILT |
3646 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
3647 | symbol_get_tc (sym)->output = 1; | |
252b5132 | 3648 | |
809ffe0d | 3649 | symbol_get_tc (sym)->within = csect; |
252b5132 RH |
3650 | |
3651 | ppc_frob_label (sym); | |
3652 | ||
3653 | ppc_current_block = sym; | |
3654 | ||
3655 | demand_empty_rest_of_line (); | |
3656 | } | |
3657 | ||
3658 | /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */ | |
3659 | ||
3660 | static void | |
3661 | ppc_es (ignore) | |
5480ccf3 | 3662 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3663 | { |
3664 | symbolS *sym; | |
3665 | ||
3666 | if (ppc_current_block == NULL) | |
3667 | as_bad (_(".es without preceding .bs")); | |
3668 | ||
3669 | sym = symbol_make (".es"); | |
3670 | S_SET_SEGMENT (sym, now_seg); | |
3671 | S_SET_STORAGE_CLASS (sym, C_ESTAT); | |
809ffe0d ILT |
3672 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
3673 | symbol_get_tc (sym)->output = 1; | |
252b5132 RH |
3674 | |
3675 | ppc_frob_label (sym); | |
3676 | ||
3677 | ppc_current_block = NULL; | |
3678 | ||
3679 | demand_empty_rest_of_line (); | |
3680 | } | |
3681 | ||
3682 | /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a | |
3683 | line number. */ | |
3684 | ||
3685 | static void | |
3686 | ppc_bb (ignore) | |
5480ccf3 | 3687 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3688 | { |
3689 | symbolS *sym; | |
3690 | ||
3691 | sym = symbol_make (".bb"); | |
3692 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3693 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3694 | S_SET_VALUE (sym, frag_now_fix ()); |
3695 | S_SET_STORAGE_CLASS (sym, C_BLOCK); | |
3696 | ||
3697 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3698 | SA_SET_SYM_LNNO (sym, get_absolute_expression ()); | |
3699 | ||
809ffe0d | 3700 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3701 | |
3702 | SF_SET_PROCESS (sym); | |
3703 | ||
3704 | ppc_frob_label (sym); | |
3705 | ||
3706 | demand_empty_rest_of_line (); | |
3707 | } | |
3708 | ||
3709 | /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a | |
3710 | line number. */ | |
3711 | ||
3712 | static void | |
3713 | ppc_eb (ignore) | |
5480ccf3 | 3714 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3715 | { |
3716 | symbolS *sym; | |
3717 | ||
3718 | sym = symbol_make (".eb"); | |
3719 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3720 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3721 | S_SET_VALUE (sym, frag_now_fix ()); |
3722 | S_SET_STORAGE_CLASS (sym, C_BLOCK); | |
3723 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3724 | SA_SET_SYM_LNNO (sym, get_absolute_expression ()); | |
809ffe0d | 3725 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3726 | |
3727 | SF_SET_PROCESS (sym); | |
3728 | ||
3729 | ppc_frob_label (sym); | |
3730 | ||
3731 | demand_empty_rest_of_line (); | |
3732 | } | |
3733 | ||
3734 | /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a | |
3735 | specified name. */ | |
3736 | ||
3737 | static void | |
3738 | ppc_bc (ignore) | |
5480ccf3 | 3739 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3740 | { |
3741 | char *name; | |
3742 | int len; | |
3743 | symbolS *sym; | |
3744 | ||
3745 | name = demand_copy_C_string (&len); | |
3746 | sym = symbol_make (name); | |
3747 | S_SET_SEGMENT (sym, ppc_coff_debug_section); | |
809ffe0d | 3748 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3749 | S_SET_STORAGE_CLASS (sym, C_BCOMM); |
3750 | S_SET_VALUE (sym, 0); | |
809ffe0d | 3751 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3752 | |
3753 | ppc_frob_label (sym); | |
3754 | ||
3755 | demand_empty_rest_of_line (); | |
3756 | } | |
3757 | ||
3758 | /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */ | |
3759 | ||
3760 | static void | |
3761 | ppc_ec (ignore) | |
5480ccf3 | 3762 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3763 | { |
3764 | symbolS *sym; | |
3765 | ||
3766 | sym = symbol_make (".ec"); | |
3767 | S_SET_SEGMENT (sym, ppc_coff_debug_section); | |
809ffe0d | 3768 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3769 | S_SET_STORAGE_CLASS (sym, C_ECOMM); |
3770 | S_SET_VALUE (sym, 0); | |
809ffe0d | 3771 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3772 | |
3773 | ppc_frob_label (sym); | |
3774 | ||
3775 | demand_empty_rest_of_line (); | |
3776 | } | |
3777 | ||
3778 | /* The .toc pseudo-op. Switch to the .toc subsegment. */ | |
3779 | ||
3780 | static void | |
3781 | ppc_toc (ignore) | |
5480ccf3 | 3782 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3783 | { |
3784 | if (ppc_toc_csect != (symbolS *) NULL) | |
809ffe0d | 3785 | subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg); |
252b5132 RH |
3786 | else |
3787 | { | |
3788 | subsegT subseg; | |
3789 | symbolS *sym; | |
3790 | symbolS *list; | |
81d4177b | 3791 | |
252b5132 RH |
3792 | subseg = ppc_data_subsegment; |
3793 | ++ppc_data_subsegment; | |
3794 | ||
3795 | subseg_new (segment_name (data_section), subseg); | |
3796 | ppc_toc_frag = frag_now; | |
3797 | ||
3798 | sym = symbol_find_or_make ("TOC[TC0]"); | |
809ffe0d | 3799 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3800 | S_SET_SEGMENT (sym, data_section); |
3801 | S_SET_VALUE (sym, (valueT) frag_now_fix ()); | |
809ffe0d ILT |
3802 | symbol_get_tc (sym)->subseg = subseg; |
3803 | symbol_get_tc (sym)->output = 1; | |
3804 | symbol_get_tc (sym)->within = sym; | |
252b5132 RH |
3805 | |
3806 | ppc_toc_csect = sym; | |
81d4177b | 3807 | |
252b5132 | 3808 | for (list = ppc_data_csects; |
809ffe0d ILT |
3809 | symbol_get_tc (list)->next != (symbolS *) NULL; |
3810 | list = symbol_get_tc (list)->next) | |
252b5132 | 3811 | ; |
809ffe0d | 3812 | symbol_get_tc (list)->next = sym; |
252b5132 RH |
3813 | |
3814 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
809ffe0d ILT |
3815 | symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP, |
3816 | &symbol_lastP); | |
252b5132 RH |
3817 | } |
3818 | ||
3819 | ppc_current_csect = ppc_toc_csect; | |
3820 | ||
3821 | demand_empty_rest_of_line (); | |
3822 | } | |
3823 | ||
3824 | /* The AIX assembler automatically aligns the operands of a .long or | |
3825 | .short pseudo-op, and we want to be compatible. */ | |
3826 | ||
3827 | static void | |
3828 | ppc_xcoff_cons (log_size) | |
3829 | int log_size; | |
3830 | { | |
3831 | frag_align (log_size, 0, 0); | |
3832 | record_alignment (now_seg, log_size); | |
3833 | cons (1 << log_size); | |
3834 | } | |
3835 | ||
3836 | static void | |
3837 | ppc_vbyte (dummy) | |
5480ccf3 | 3838 | int dummy ATTRIBUTE_UNUSED; |
252b5132 RH |
3839 | { |
3840 | expressionS exp; | |
3841 | int byte_count; | |
3842 | ||
3843 | (void) expression (&exp); | |
3844 | ||
3845 | if (exp.X_op != O_constant) | |
3846 | { | |
3847 | as_bad (_("non-constant byte count")); | |
3848 | return; | |
3849 | } | |
3850 | ||
3851 | byte_count = exp.X_add_number; | |
3852 | ||
3853 | if (*input_line_pointer != ',') | |
3854 | { | |
3855 | as_bad (_("missing value")); | |
3856 | return; | |
3857 | } | |
3858 | ||
3859 | ++input_line_pointer; | |
3860 | cons (byte_count); | |
3861 | } | |
3862 | ||
3863 | #endif /* OBJ_XCOFF */ | |
0baf16f2 | 3864 | #if defined (OBJ_XCOFF) || defined (OBJ_ELF) |
252b5132 RH |
3865 | \f |
3866 | /* The .tc pseudo-op. This is used when generating either XCOFF or | |
3867 | ELF. This takes two or more arguments. | |
3868 | ||
3869 | When generating XCOFF output, the first argument is the name to | |
3870 | give to this location in the toc; this will be a symbol with class | |
0baf16f2 | 3871 | TC. The rest of the arguments are N-byte values to actually put at |
252b5132 | 3872 | this location in the TOC; often there is just one more argument, a |
1049f94e | 3873 | relocatable symbol reference. The size of the value to store |
0baf16f2 AM |
3874 | depends on target word size. A 32-bit target uses 4-byte values, a |
3875 | 64-bit target uses 8-byte values. | |
252b5132 RH |
3876 | |
3877 | When not generating XCOFF output, the arguments are the same, but | |
3878 | the first argument is simply ignored. */ | |
3879 | ||
3880 | static void | |
3881 | ppc_tc (ignore) | |
92161534 | 3882 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3883 | { |
3884 | #ifdef OBJ_XCOFF | |
3885 | ||
3886 | /* Define the TOC symbol name. */ | |
3887 | { | |
3888 | char *name; | |
3889 | char endc; | |
3890 | symbolS *sym; | |
3891 | ||
3892 | if (ppc_toc_csect == (symbolS *) NULL | |
3893 | || ppc_toc_csect != ppc_current_csect) | |
3894 | { | |
3895 | as_bad (_(".tc not in .toc section")); | |
3896 | ignore_rest_of_line (); | |
3897 | return; | |
3898 | } | |
3899 | ||
3900 | name = input_line_pointer; | |
3901 | endc = get_symbol_end (); | |
3902 | ||
3903 | sym = symbol_find_or_make (name); | |
3904 | ||
3905 | *input_line_pointer = endc; | |
3906 | ||
3907 | if (S_IS_DEFINED (sym)) | |
3908 | { | |
3909 | symbolS *label; | |
3910 | ||
809ffe0d ILT |
3911 | label = symbol_get_tc (ppc_current_csect)->within; |
3912 | if (symbol_get_tc (label)->class != XMC_TC0) | |
252b5132 RH |
3913 | { |
3914 | as_bad (_(".tc with no label")); | |
3915 | ignore_rest_of_line (); | |
3916 | return; | |
3917 | } | |
3918 | ||
3919 | S_SET_SEGMENT (label, S_GET_SEGMENT (sym)); | |
809ffe0d | 3920 | symbol_set_frag (label, symbol_get_frag (sym)); |
252b5132 RH |
3921 | S_SET_VALUE (label, S_GET_VALUE (sym)); |
3922 | ||
3923 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
3924 | ++input_line_pointer; | |
3925 | ||
3926 | return; | |
3927 | } | |
3928 | ||
3929 | S_SET_SEGMENT (sym, now_seg); | |
809ffe0d | 3930 | symbol_set_frag (sym, frag_now); |
252b5132 | 3931 | S_SET_VALUE (sym, (valueT) frag_now_fix ()); |
809ffe0d ILT |
3932 | symbol_get_tc (sym)->class = XMC_TC; |
3933 | symbol_get_tc (sym)->output = 1; | |
252b5132 RH |
3934 | |
3935 | ppc_frob_label (sym); | |
3936 | } | |
3937 | ||
0baf16f2 AM |
3938 | #endif /* OBJ_XCOFF */ |
3939 | #ifdef OBJ_ELF | |
9c7977b3 | 3940 | int align; |
252b5132 RH |
3941 | |
3942 | /* Skip the TOC symbol name. */ | |
3943 | while (is_part_of_name (*input_line_pointer) | |
3944 | || *input_line_pointer == '[' | |
3945 | || *input_line_pointer == ']' | |
3946 | || *input_line_pointer == '{' | |
3947 | || *input_line_pointer == '}') | |
3948 | ++input_line_pointer; | |
3949 | ||
0baf16f2 | 3950 | /* Align to a four/eight byte boundary. */ |
2b3c4602 | 3951 | align = ppc_obj64 ? 3 : 2; |
9c7977b3 AM |
3952 | frag_align (align, 0, 0); |
3953 | record_alignment (now_seg, align); | |
0baf16f2 | 3954 | #endif /* OBJ_ELF */ |
252b5132 RH |
3955 | |
3956 | if (*input_line_pointer != ',') | |
3957 | demand_empty_rest_of_line (); | |
3958 | else | |
3959 | { | |
3960 | ++input_line_pointer; | |
2b3c4602 | 3961 | cons (ppc_obj64 ? 8 : 4); |
252b5132 RH |
3962 | } |
3963 | } | |
0baf16f2 AM |
3964 | |
3965 | /* Pseudo-op .machine. */ | |
15c1449b | 3966 | /* FIXME: `.machine' is a nop for the moment. It would be nice to |
2b3c4602 | 3967 | accept this directive on the first line of input and set ppc_obj64 |
15c1449b AM |
3968 | and the target format accordingly. Unfortunately, the target |
3969 | format is selected in output-file.c:output_file_create before we | |
3970 | even get to md_begin, so it's not possible without changing | |
3971 | as.c:main. */ | |
0baf16f2 AM |
3972 | |
3973 | static void | |
3974 | ppc_machine (ignore) | |
3975 | int ignore ATTRIBUTE_UNUSED; | |
3976 | { | |
3977 | discard_rest_of_line (); | |
3978 | } | |
3979 | ||
3980 | /* See whether a symbol is in the TOC section. */ | |
3981 | ||
3982 | static int | |
3983 | ppc_is_toc_sym (sym) | |
3984 | symbolS *sym; | |
3985 | { | |
3986 | #ifdef OBJ_XCOFF | |
3987 | return symbol_get_tc (sym)->class == XMC_TC; | |
3988 | #endif | |
3989 | #ifdef OBJ_ELF | |
3990 | const char *sname = segment_name (S_GET_SEGMENT (sym)); | |
2b3c4602 | 3991 | if (ppc_obj64) |
0baf16f2 AM |
3992 | return strcmp (sname, ".toc") == 0; |
3993 | else | |
3994 | return strcmp (sname, ".got") == 0; | |
3995 | #endif | |
3996 | } | |
3997 | #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */ | |
252b5132 RH |
3998 | \f |
3999 | #ifdef TE_PE | |
4000 | ||
99a814a1 | 4001 | /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */ |
252b5132 RH |
4002 | |
4003 | /* Set the current section. */ | |
4004 | static void | |
4005 | ppc_set_current_section (new) | |
4006 | segT new; | |
4007 | { | |
4008 | ppc_previous_section = ppc_current_section; | |
4009 | ppc_current_section = new; | |
4010 | } | |
4011 | ||
4012 | /* pseudo-op: .previous | |
4013 | behaviour: toggles the current section with the previous section. | |
4014 | errors: None | |
99a814a1 AM |
4015 | warnings: "No previous section" */ |
4016 | ||
252b5132 | 4017 | static void |
99a814a1 | 4018 | ppc_previous (ignore) |
5480ccf3 | 4019 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4020 | { |
4021 | symbolS *tmp; | |
4022 | ||
81d4177b | 4023 | if (ppc_previous_section == NULL) |
252b5132 | 4024 | { |
99a814a1 | 4025 | as_warn (_("No previous section to return to. Directive ignored.")); |
252b5132 RH |
4026 | return; |
4027 | } | |
4028 | ||
99a814a1 | 4029 | subseg_set (ppc_previous_section, 0); |
252b5132 | 4030 | |
99a814a1 | 4031 | ppc_set_current_section (ppc_previous_section); |
252b5132 RH |
4032 | } |
4033 | ||
4034 | /* pseudo-op: .pdata | |
4035 | behaviour: predefined read only data section | |
b34976b6 | 4036 | double word aligned |
252b5132 RH |
4037 | errors: None |
4038 | warnings: None | |
4039 | initial: .section .pdata "adr3" | |
b34976b6 | 4040 | a - don't know -- maybe a misprint |
252b5132 RH |
4041 | d - initialized data |
4042 | r - readable | |
4043 | 3 - double word aligned (that would be 4 byte boundary) | |
4044 | ||
4045 | commentary: | |
4046 | Tag index tables (also known as the function table) for exception | |
99a814a1 | 4047 | handling, debugging, etc. */ |
252b5132 | 4048 | |
252b5132 | 4049 | static void |
99a814a1 | 4050 | ppc_pdata (ignore) |
5480ccf3 | 4051 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 4052 | { |
81d4177b | 4053 | if (pdata_section == 0) |
252b5132 RH |
4054 | { |
4055 | pdata_section = subseg_new (".pdata", 0); | |
81d4177b | 4056 | |
252b5132 RH |
4057 | bfd_set_section_flags (stdoutput, pdata_section, |
4058 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
4059 | | SEC_READONLY | SEC_DATA )); | |
81d4177b | 4060 | |
252b5132 RH |
4061 | bfd_set_section_alignment (stdoutput, pdata_section, 2); |
4062 | } | |
4063 | else | |
4064 | { | |
99a814a1 | 4065 | pdata_section = subseg_new (".pdata", 0); |
252b5132 | 4066 | } |
99a814a1 | 4067 | ppc_set_current_section (pdata_section); |
252b5132 RH |
4068 | } |
4069 | ||
4070 | /* pseudo-op: .ydata | |
4071 | behaviour: predefined read only data section | |
b34976b6 | 4072 | double word aligned |
252b5132 RH |
4073 | errors: None |
4074 | warnings: None | |
4075 | initial: .section .ydata "drw3" | |
b34976b6 | 4076 | a - don't know -- maybe a misprint |
252b5132 RH |
4077 | d - initialized data |
4078 | r - readable | |
4079 | 3 - double word aligned (that would be 4 byte boundary) | |
4080 | commentary: | |
4081 | Tag tables (also known as the scope table) for exception handling, | |
99a814a1 AM |
4082 | debugging, etc. */ |
4083 | ||
252b5132 | 4084 | static void |
99a814a1 | 4085 | ppc_ydata (ignore) |
5480ccf3 | 4086 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 4087 | { |
81d4177b | 4088 | if (ydata_section == 0) |
252b5132 RH |
4089 | { |
4090 | ydata_section = subseg_new (".ydata", 0); | |
4091 | bfd_set_section_flags (stdoutput, ydata_section, | |
99a814a1 AM |
4092 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
4093 | | SEC_READONLY | SEC_DATA )); | |
252b5132 RH |
4094 | |
4095 | bfd_set_section_alignment (stdoutput, ydata_section, 3); | |
4096 | } | |
4097 | else | |
4098 | { | |
4099 | ydata_section = subseg_new (".ydata", 0); | |
4100 | } | |
99a814a1 | 4101 | ppc_set_current_section (ydata_section); |
252b5132 RH |
4102 | } |
4103 | ||
4104 | /* pseudo-op: .reldata | |
4105 | behaviour: predefined read write data section | |
b34976b6 | 4106 | double word aligned (4-byte) |
252b5132 RH |
4107 | FIXME: relocation is applied to it |
4108 | FIXME: what's the difference between this and .data? | |
4109 | errors: None | |
4110 | warnings: None | |
4111 | initial: .section .reldata "drw3" | |
4112 | d - initialized data | |
4113 | r - readable | |
4114 | w - writeable | |
4115 | 3 - double word aligned (that would be 8 byte boundary) | |
4116 | ||
4117 | commentary: | |
4118 | Like .data, but intended to hold data subject to relocation, such as | |
99a814a1 AM |
4119 | function descriptors, etc. */ |
4120 | ||
252b5132 | 4121 | static void |
99a814a1 | 4122 | ppc_reldata (ignore) |
5480ccf3 | 4123 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4124 | { |
4125 | if (reldata_section == 0) | |
4126 | { | |
4127 | reldata_section = subseg_new (".reldata", 0); | |
4128 | ||
4129 | bfd_set_section_flags (stdoutput, reldata_section, | |
99a814a1 AM |
4130 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
4131 | | SEC_DATA)); | |
252b5132 RH |
4132 | |
4133 | bfd_set_section_alignment (stdoutput, reldata_section, 2); | |
4134 | } | |
4135 | else | |
4136 | { | |
4137 | reldata_section = subseg_new (".reldata", 0); | |
4138 | } | |
99a814a1 | 4139 | ppc_set_current_section (reldata_section); |
252b5132 RH |
4140 | } |
4141 | ||
4142 | /* pseudo-op: .rdata | |
4143 | behaviour: predefined read only data section | |
b34976b6 | 4144 | double word aligned |
252b5132 RH |
4145 | errors: None |
4146 | warnings: None | |
4147 | initial: .section .rdata "dr3" | |
4148 | d - initialized data | |
4149 | r - readable | |
99a814a1 AM |
4150 | 3 - double word aligned (that would be 4 byte boundary) */ |
4151 | ||
252b5132 | 4152 | static void |
99a814a1 | 4153 | ppc_rdata (ignore) |
5480ccf3 | 4154 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4155 | { |
4156 | if (rdata_section == 0) | |
4157 | { | |
4158 | rdata_section = subseg_new (".rdata", 0); | |
4159 | bfd_set_section_flags (stdoutput, rdata_section, | |
4160 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
4161 | | SEC_READONLY | SEC_DATA )); | |
4162 | ||
4163 | bfd_set_section_alignment (stdoutput, rdata_section, 2); | |
4164 | } | |
4165 | else | |
4166 | { | |
4167 | rdata_section = subseg_new (".rdata", 0); | |
4168 | } | |
99a814a1 | 4169 | ppc_set_current_section (rdata_section); |
252b5132 RH |
4170 | } |
4171 | ||
4172 | /* pseudo-op: .ualong | |
81d4177b | 4173 | behaviour: much like .int, with the exception that no alignment is |
b34976b6 | 4174 | performed. |
252b5132 RH |
4175 | FIXME: test the alignment statement |
4176 | errors: None | |
99a814a1 AM |
4177 | warnings: None */ |
4178 | ||
252b5132 | 4179 | static void |
99a814a1 | 4180 | ppc_ualong (ignore) |
5480ccf3 | 4181 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 4182 | { |
99a814a1 AM |
4183 | /* Try for long. */ |
4184 | cons (4); | |
252b5132 RH |
4185 | } |
4186 | ||
4187 | /* pseudo-op: .znop <symbol name> | |
4188 | behaviour: Issue a nop instruction | |
b34976b6 | 4189 | Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using |
252b5132 RH |
4190 | the supplied symbol name. |
4191 | errors: None | |
99a814a1 AM |
4192 | warnings: Missing symbol name */ |
4193 | ||
252b5132 | 4194 | static void |
99a814a1 | 4195 | ppc_znop (ignore) |
5480ccf3 | 4196 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4197 | { |
4198 | unsigned long insn; | |
4199 | const struct powerpc_opcode *opcode; | |
4200 | expressionS ex; | |
4201 | char *f; | |
252b5132 | 4202 | symbolS *sym; |
252b5132 RH |
4203 | char *symbol_name; |
4204 | char c; | |
4205 | char *name; | |
4206 | unsigned int exp; | |
4207 | flagword flags; | |
4208 | asection *sec; | |
4209 | ||
99a814a1 | 4210 | /* Strip out the symbol name. */ |
252b5132 RH |
4211 | symbol_name = input_line_pointer; |
4212 | c = get_symbol_end (); | |
4213 | ||
4214 | name = xmalloc (input_line_pointer - symbol_name + 1); | |
4215 | strcpy (name, symbol_name); | |
4216 | ||
4217 | sym = symbol_find_or_make (name); | |
4218 | ||
4219 | *input_line_pointer = c; | |
4220 | ||
4221 | SKIP_WHITESPACE (); | |
4222 | ||
4223 | /* Look up the opcode in the hash table. */ | |
4224 | opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop"); | |
4225 | ||
99a814a1 | 4226 | /* Stick in the nop. */ |
252b5132 RH |
4227 | insn = opcode->opcode; |
4228 | ||
4229 | /* Write out the instruction. */ | |
4230 | f = frag_more (4); | |
4231 | md_number_to_chars (f, insn, 4); | |
4232 | fix_new (frag_now, | |
4233 | f - frag_now->fr_literal, | |
4234 | 4, | |
4235 | sym, | |
4236 | 0, | |
4237 | 0, | |
4238 | BFD_RELOC_16_GOT_PCREL); | |
4239 | ||
4240 | } | |
4241 | ||
81d4177b KH |
4242 | /* pseudo-op: |
4243 | behaviour: | |
4244 | errors: | |
99a814a1 AM |
4245 | warnings: */ |
4246 | ||
252b5132 | 4247 | static void |
99a814a1 | 4248 | ppc_pe_comm (lcomm) |
252b5132 RH |
4249 | int lcomm; |
4250 | { | |
4251 | register char *name; | |
4252 | register char c; | |
4253 | register char *p; | |
4254 | offsetT temp; | |
4255 | register symbolS *symbolP; | |
4256 | offsetT align; | |
4257 | ||
4258 | name = input_line_pointer; | |
4259 | c = get_symbol_end (); | |
4260 | ||
99a814a1 | 4261 | /* just after name is now '\0'. */ |
252b5132 RH |
4262 | p = input_line_pointer; |
4263 | *p = c; | |
4264 | SKIP_WHITESPACE (); | |
4265 | if (*input_line_pointer != ',') | |
4266 | { | |
4267 | as_bad (_("Expected comma after symbol-name: rest of line ignored.")); | |
4268 | ignore_rest_of_line (); | |
4269 | return; | |
4270 | } | |
4271 | ||
4272 | input_line_pointer++; /* skip ',' */ | |
4273 | if ((temp = get_absolute_expression ()) < 0) | |
4274 | { | |
4275 | as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp); | |
4276 | ignore_rest_of_line (); | |
4277 | return; | |
4278 | } | |
4279 | ||
4280 | if (! lcomm) | |
4281 | { | |
4282 | /* The third argument to .comm is the alignment. */ | |
4283 | if (*input_line_pointer != ',') | |
4284 | align = 3; | |
4285 | else | |
4286 | { | |
4287 | ++input_line_pointer; | |
4288 | align = get_absolute_expression (); | |
4289 | if (align <= 0) | |
4290 | { | |
4291 | as_warn (_("ignoring bad alignment")); | |
4292 | align = 3; | |
4293 | } | |
4294 | } | |
4295 | } | |
4296 | ||
4297 | *p = 0; | |
4298 | symbolP = symbol_find_or_make (name); | |
4299 | ||
4300 | *p = c; | |
4301 | if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) | |
4302 | { | |
4303 | as_bad (_("Ignoring attempt to re-define symbol `%s'."), | |
4304 | S_GET_NAME (symbolP)); | |
4305 | ignore_rest_of_line (); | |
4306 | return; | |
4307 | } | |
4308 | ||
4309 | if (S_GET_VALUE (symbolP)) | |
4310 | { | |
4311 | if (S_GET_VALUE (symbolP) != (valueT) temp) | |
4312 | as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."), | |
4313 | S_GET_NAME (symbolP), | |
4314 | (long) S_GET_VALUE (symbolP), | |
4315 | (long) temp); | |
4316 | } | |
4317 | else | |
4318 | { | |
4319 | S_SET_VALUE (symbolP, (valueT) temp); | |
4320 | S_SET_EXTERNAL (symbolP); | |
4321 | } | |
4322 | ||
4323 | demand_empty_rest_of_line (); | |
4324 | } | |
4325 | ||
4326 | /* | |
4327 | * implement the .section pseudo op: | |
4328 | * .section name {, "flags"} | |
4329 | * ^ ^ | |
4330 | * | +--- optional flags: 'b' for bss | |
4331 | * | 'i' for info | |
4332 | * +-- section name 'l' for lib | |
4333 | * 'n' for noload | |
4334 | * 'o' for over | |
4335 | * 'w' for data | |
4336 | * 'd' (apparently m88k for data) | |
4337 | * 'x' for text | |
4338 | * But if the argument is not a quoted string, treat it as a | |
4339 | * subsegment number. | |
4340 | * | |
4341 | * FIXME: this is a copy of the section processing from obj-coff.c, with | |
4342 | * additions/changes for the moto-pas assembler support. There are three | |
4343 | * categories: | |
4344 | * | |
81d4177b | 4345 | * FIXME: I just noticed this. This doesn't work at all really. It it |
252b5132 RH |
4346 | * setting bits that bfd probably neither understands or uses. The |
4347 | * correct approach (?) will have to incorporate extra fields attached | |
4348 | * to the section to hold the system specific stuff. (krk) | |
4349 | * | |
4350 | * Section Contents: | |
4351 | * 'a' - unknown - referred to in documentation, but no definition supplied | |
4352 | * 'c' - section has code | |
4353 | * 'd' - section has initialized data | |
4354 | * 'u' - section has uninitialized data | |
4355 | * 'i' - section contains directives (info) | |
4356 | * 'n' - section can be discarded | |
4357 | * 'R' - remove section at link time | |
4358 | * | |
4359 | * Section Protection: | |
4360 | * 'r' - section is readable | |
4361 | * 'w' - section is writeable | |
4362 | * 'x' - section is executable | |
4363 | * 's' - section is sharable | |
4364 | * | |
4365 | * Section Alignment: | |
4366 | * '0' - align to byte boundary | |
4367 | * '1' - align to halfword undary | |
4368 | * '2' - align to word boundary | |
4369 | * '3' - align to doubleword boundary | |
4370 | * '4' - align to quadword boundary | |
4371 | * '5' - align to 32 byte boundary | |
4372 | * '6' - align to 64 byte boundary | |
4373 | * | |
4374 | */ | |
4375 | ||
4376 | void | |
4377 | ppc_pe_section (ignore) | |
5480ccf3 | 4378 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 4379 | { |
99a814a1 | 4380 | /* Strip out the section name. */ |
252b5132 RH |
4381 | char *section_name; |
4382 | char c; | |
4383 | char *name; | |
4384 | unsigned int exp; | |
4385 | flagword flags; | |
4386 | segT sec; | |
4387 | int align; | |
4388 | ||
4389 | section_name = input_line_pointer; | |
4390 | c = get_symbol_end (); | |
4391 | ||
4392 | name = xmalloc (input_line_pointer - section_name + 1); | |
4393 | strcpy (name, section_name); | |
4394 | ||
4395 | *input_line_pointer = c; | |
4396 | ||
4397 | SKIP_WHITESPACE (); | |
4398 | ||
4399 | exp = 0; | |
4400 | flags = SEC_NO_FLAGS; | |
4401 | ||
4402 | if (strcmp (name, ".idata$2") == 0) | |
4403 | { | |
4404 | align = 0; | |
4405 | } | |
4406 | else if (strcmp (name, ".idata$3") == 0) | |
4407 | { | |
4408 | align = 0; | |
4409 | } | |
4410 | else if (strcmp (name, ".idata$4") == 0) | |
4411 | { | |
4412 | align = 2; | |
4413 | } | |
4414 | else if (strcmp (name, ".idata$5") == 0) | |
4415 | { | |
4416 | align = 2; | |
4417 | } | |
4418 | else if (strcmp (name, ".idata$6") == 0) | |
4419 | { | |
4420 | align = 1; | |
4421 | } | |
4422 | else | |
99a814a1 AM |
4423 | /* Default alignment to 16 byte boundary. */ |
4424 | align = 4; | |
252b5132 RH |
4425 | |
4426 | if (*input_line_pointer == ',') | |
4427 | { | |
4428 | ++input_line_pointer; | |
4429 | SKIP_WHITESPACE (); | |
4430 | if (*input_line_pointer != '"') | |
4431 | exp = get_absolute_expression (); | |
4432 | else | |
4433 | { | |
4434 | ++input_line_pointer; | |
4435 | while (*input_line_pointer != '"' | |
4436 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
4437 | { | |
4438 | switch (*input_line_pointer) | |
4439 | { | |
4440 | /* Section Contents */ | |
4441 | case 'a': /* unknown */ | |
4442 | as_bad (_("Unsupported section attribute -- 'a'")); | |
4443 | break; | |
4444 | case 'c': /* code section */ | |
81d4177b | 4445 | flags |= SEC_CODE; |
252b5132 RH |
4446 | break; |
4447 | case 'd': /* section has initialized data */ | |
4448 | flags |= SEC_DATA; | |
4449 | break; | |
4450 | case 'u': /* section has uninitialized data */ | |
4451 | /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA | |
4452 | in winnt.h */ | |
4453 | flags |= SEC_ROM; | |
4454 | break; | |
4455 | case 'i': /* section contains directives (info) */ | |
4456 | /* FIXME: This is IMAGE_SCN_LNK_INFO | |
4457 | in winnt.h */ | |
4458 | flags |= SEC_HAS_CONTENTS; | |
4459 | break; | |
4460 | case 'n': /* section can be discarded */ | |
81d4177b | 4461 | flags &=~ SEC_LOAD; |
252b5132 RH |
4462 | break; |
4463 | case 'R': /* Remove section at link time */ | |
4464 | flags |= SEC_NEVER_LOAD; | |
4465 | break; | |
4466 | ||
4467 | /* Section Protection */ | |
4468 | case 'r': /* section is readable */ | |
4469 | flags |= IMAGE_SCN_MEM_READ; | |
4470 | break; | |
4471 | case 'w': /* section is writeable */ | |
4472 | flags |= IMAGE_SCN_MEM_WRITE; | |
4473 | break; | |
4474 | case 'x': /* section is executable */ | |
4475 | flags |= IMAGE_SCN_MEM_EXECUTE; | |
4476 | break; | |
4477 | case 's': /* section is sharable */ | |
4478 | flags |= IMAGE_SCN_MEM_SHARED; | |
4479 | break; | |
4480 | ||
4481 | /* Section Alignment */ | |
4482 | case '0': /* align to byte boundary */ | |
4483 | flags |= IMAGE_SCN_ALIGN_1BYTES; | |
4484 | align = 0; | |
4485 | break; | |
4486 | case '1': /* align to halfword boundary */ | |
4487 | flags |= IMAGE_SCN_ALIGN_2BYTES; | |
4488 | align = 1; | |
4489 | break; | |
4490 | case '2': /* align to word boundary */ | |
4491 | flags |= IMAGE_SCN_ALIGN_4BYTES; | |
4492 | align = 2; | |
4493 | break; | |
4494 | case '3': /* align to doubleword boundary */ | |
4495 | flags |= IMAGE_SCN_ALIGN_8BYTES; | |
4496 | align = 3; | |
4497 | break; | |
4498 | case '4': /* align to quadword boundary */ | |
4499 | flags |= IMAGE_SCN_ALIGN_16BYTES; | |
4500 | align = 4; | |
4501 | break; | |
4502 | case '5': /* align to 32 byte boundary */ | |
4503 | flags |= IMAGE_SCN_ALIGN_32BYTES; | |
4504 | align = 5; | |
4505 | break; | |
4506 | case '6': /* align to 64 byte boundary */ | |
4507 | flags |= IMAGE_SCN_ALIGN_64BYTES; | |
4508 | align = 6; | |
4509 | break; | |
4510 | ||
4511 | default: | |
99a814a1 AM |
4512 | as_bad (_("unknown section attribute '%c'"), |
4513 | *input_line_pointer); | |
252b5132 RH |
4514 | break; |
4515 | } | |
4516 | ++input_line_pointer; | |
4517 | } | |
4518 | if (*input_line_pointer == '"') | |
4519 | ++input_line_pointer; | |
4520 | } | |
4521 | } | |
4522 | ||
4523 | sec = subseg_new (name, (subsegT) exp); | |
4524 | ||
99a814a1 | 4525 | ppc_set_current_section (sec); |
252b5132 RH |
4526 | |
4527 | if (flags != SEC_NO_FLAGS) | |
4528 | { | |
4529 | if (! bfd_set_section_flags (stdoutput, sec, flags)) | |
4530 | as_bad (_("error setting flags for \"%s\": %s"), | |
4531 | bfd_section_name (stdoutput, sec), | |
4532 | bfd_errmsg (bfd_get_error ())); | |
4533 | } | |
4534 | ||
99a814a1 | 4535 | bfd_set_section_alignment (stdoutput, sec, align); |
252b5132 RH |
4536 | |
4537 | } | |
4538 | ||
4539 | static void | |
4540 | ppc_pe_function (ignore) | |
5480ccf3 | 4541 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4542 | { |
4543 | char *name; | |
4544 | char endc; | |
4545 | symbolS *ext_sym; | |
4546 | ||
4547 | name = input_line_pointer; | |
4548 | endc = get_symbol_end (); | |
4549 | ||
4550 | ext_sym = symbol_find_or_make (name); | |
4551 | ||
4552 | *input_line_pointer = endc; | |
4553 | ||
4554 | S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT); | |
4555 | SF_SET_FUNCTION (ext_sym); | |
4556 | SF_SET_PROCESS (ext_sym); | |
4557 | coff_add_linesym (ext_sym); | |
4558 | ||
4559 | demand_empty_rest_of_line (); | |
4560 | } | |
4561 | ||
4562 | static void | |
4563 | ppc_pe_tocd (ignore) | |
5480ccf3 | 4564 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4565 | { |
4566 | if (tocdata_section == 0) | |
4567 | { | |
4568 | tocdata_section = subseg_new (".tocd", 0); | |
99a814a1 | 4569 | /* FIXME: section flags won't work. */ |
252b5132 RH |
4570 | bfd_set_section_flags (stdoutput, tocdata_section, |
4571 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
99a814a1 | 4572 | | SEC_READONLY | SEC_DATA)); |
252b5132 RH |
4573 | |
4574 | bfd_set_section_alignment (stdoutput, tocdata_section, 2); | |
4575 | } | |
4576 | else | |
4577 | { | |
4578 | rdata_section = subseg_new (".tocd", 0); | |
4579 | } | |
4580 | ||
99a814a1 | 4581 | ppc_set_current_section (tocdata_section); |
252b5132 RH |
4582 | |
4583 | demand_empty_rest_of_line (); | |
4584 | } | |
4585 | ||
4586 | /* Don't adjust TOC relocs to use the section symbol. */ | |
4587 | ||
4588 | int | |
4589 | ppc_pe_fix_adjustable (fix) | |
4590 | fixS *fix; | |
4591 | { | |
4592 | return fix->fx_r_type != BFD_RELOC_PPC_TOC16; | |
4593 | } | |
4594 | ||
4595 | #endif | |
4596 | \f | |
4597 | #ifdef OBJ_XCOFF | |
4598 | ||
4599 | /* XCOFF specific symbol and file handling. */ | |
4600 | ||
4601 | /* Canonicalize the symbol name. We use the to force the suffix, if | |
4602 | any, to use square brackets, and to be in upper case. */ | |
4603 | ||
4604 | char * | |
4605 | ppc_canonicalize_symbol_name (name) | |
4606 | char *name; | |
4607 | { | |
4608 | char *s; | |
4609 | ||
4610 | if (ppc_stab_symbol) | |
4611 | return name; | |
4612 | ||
4613 | for (s = name; *s != '\0' && *s != '{' && *s != '['; s++) | |
4614 | ; | |
4615 | if (*s != '\0') | |
4616 | { | |
4617 | char brac; | |
4618 | ||
4619 | if (*s == '[') | |
4620 | brac = ']'; | |
4621 | else | |
4622 | { | |
4623 | *s = '['; | |
4624 | brac = '}'; | |
4625 | } | |
4626 | ||
4627 | for (s++; *s != '\0' && *s != brac; s++) | |
3882b010 | 4628 | *s = TOUPPER (*s); |
252b5132 RH |
4629 | |
4630 | if (*s == '\0' || s[1] != '\0') | |
4631 | as_bad (_("bad symbol suffix")); | |
4632 | ||
4633 | *s = ']'; | |
4634 | } | |
4635 | ||
4636 | return name; | |
4637 | } | |
4638 | ||
4639 | /* Set the class of a symbol based on the suffix, if any. This is | |
4640 | called whenever a new symbol is created. */ | |
4641 | ||
4642 | void | |
4643 | ppc_symbol_new_hook (sym) | |
4644 | symbolS *sym; | |
4645 | { | |
809ffe0d | 4646 | struct ppc_tc_sy *tc; |
252b5132 RH |
4647 | const char *s; |
4648 | ||
809ffe0d ILT |
4649 | tc = symbol_get_tc (sym); |
4650 | tc->next = NULL; | |
4651 | tc->output = 0; | |
4652 | tc->class = -1; | |
4653 | tc->real_name = NULL; | |
4654 | tc->subseg = 0; | |
4655 | tc->align = 0; | |
4656 | tc->size = NULL; | |
4657 | tc->within = NULL; | |
252b5132 RH |
4658 | |
4659 | if (ppc_stab_symbol) | |
4660 | return; | |
4661 | ||
4662 | s = strchr (S_GET_NAME (sym), '['); | |
4663 | if (s == (const char *) NULL) | |
4664 | { | |
4665 | /* There is no suffix. */ | |
4666 | return; | |
4667 | } | |
4668 | ||
4669 | ++s; | |
4670 | ||
4671 | switch (s[0]) | |
4672 | { | |
4673 | case 'B': | |
4674 | if (strcmp (s, "BS]") == 0) | |
809ffe0d | 4675 | tc->class = XMC_BS; |
252b5132 RH |
4676 | break; |
4677 | case 'D': | |
4678 | if (strcmp (s, "DB]") == 0) | |
809ffe0d | 4679 | tc->class = XMC_DB; |
252b5132 | 4680 | else if (strcmp (s, "DS]") == 0) |
809ffe0d | 4681 | tc->class = XMC_DS; |
252b5132 RH |
4682 | break; |
4683 | case 'G': | |
4684 | if (strcmp (s, "GL]") == 0) | |
809ffe0d | 4685 | tc->class = XMC_GL; |
252b5132 RH |
4686 | break; |
4687 | case 'P': | |
4688 | if (strcmp (s, "PR]") == 0) | |
809ffe0d | 4689 | tc->class = XMC_PR; |
252b5132 RH |
4690 | break; |
4691 | case 'R': | |
4692 | if (strcmp (s, "RO]") == 0) | |
809ffe0d | 4693 | tc->class = XMC_RO; |
252b5132 | 4694 | else if (strcmp (s, "RW]") == 0) |
809ffe0d | 4695 | tc->class = XMC_RW; |
252b5132 RH |
4696 | break; |
4697 | case 'S': | |
4698 | if (strcmp (s, "SV]") == 0) | |
809ffe0d | 4699 | tc->class = XMC_SV; |
252b5132 RH |
4700 | break; |
4701 | case 'T': | |
4702 | if (strcmp (s, "TC]") == 0) | |
809ffe0d | 4703 | tc->class = XMC_TC; |
252b5132 | 4704 | else if (strcmp (s, "TI]") == 0) |
809ffe0d | 4705 | tc->class = XMC_TI; |
252b5132 | 4706 | else if (strcmp (s, "TB]") == 0) |
809ffe0d | 4707 | tc->class = XMC_TB; |
252b5132 | 4708 | else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0) |
809ffe0d | 4709 | tc->class = XMC_TC0; |
252b5132 RH |
4710 | break; |
4711 | case 'U': | |
4712 | if (strcmp (s, "UA]") == 0) | |
809ffe0d | 4713 | tc->class = XMC_UA; |
252b5132 | 4714 | else if (strcmp (s, "UC]") == 0) |
809ffe0d | 4715 | tc->class = XMC_UC; |
252b5132 RH |
4716 | break; |
4717 | case 'X': | |
4718 | if (strcmp (s, "XO]") == 0) | |
809ffe0d | 4719 | tc->class = XMC_XO; |
252b5132 RH |
4720 | break; |
4721 | } | |
4722 | ||
809ffe0d | 4723 | if (tc->class == -1) |
252b5132 RH |
4724 | as_bad (_("Unrecognized symbol suffix")); |
4725 | } | |
4726 | ||
4727 | /* Set the class of a label based on where it is defined. This | |
4728 | handles symbols without suffixes. Also, move the symbol so that it | |
4729 | follows the csect symbol. */ | |
4730 | ||
4731 | void | |
4732 | ppc_frob_label (sym) | |
4733 | symbolS *sym; | |
4734 | { | |
4735 | if (ppc_current_csect != (symbolS *) NULL) | |
4736 | { | |
809ffe0d ILT |
4737 | if (symbol_get_tc (sym)->class == -1) |
4738 | symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class; | |
252b5132 RH |
4739 | |
4740 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
809ffe0d ILT |
4741 | symbol_append (sym, symbol_get_tc (ppc_current_csect)->within, |
4742 | &symbol_rootP, &symbol_lastP); | |
4743 | symbol_get_tc (ppc_current_csect)->within = sym; | |
252b5132 RH |
4744 | } |
4745 | } | |
4746 | ||
4747 | /* This variable is set by ppc_frob_symbol if any absolute symbols are | |
4748 | seen. It tells ppc_adjust_symtab whether it needs to look through | |
4749 | the symbols. */ | |
4750 | ||
b34976b6 | 4751 | static bfd_boolean ppc_saw_abs; |
252b5132 RH |
4752 | |
4753 | /* Change the name of a symbol just before writing it out. Set the | |
4754 | real name if the .rename pseudo-op was used. Otherwise, remove any | |
4755 | class suffix. Return 1 if the symbol should not be included in the | |
4756 | symbol table. */ | |
4757 | ||
4758 | int | |
4759 | ppc_frob_symbol (sym) | |
4760 | symbolS *sym; | |
4761 | { | |
4762 | static symbolS *ppc_last_function; | |
4763 | static symbolS *set_end; | |
4764 | ||
4765 | /* Discard symbols that should not be included in the output symbol | |
4766 | table. */ | |
809ffe0d ILT |
4767 | if (! symbol_used_in_reloc_p (sym) |
4768 | && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0 | |
252b5132 | 4769 | || (! S_IS_EXTERNAL (sym) |
809ffe0d | 4770 | && ! symbol_get_tc (sym)->output |
252b5132 RH |
4771 | && S_GET_STORAGE_CLASS (sym) != C_FILE))) |
4772 | return 1; | |
4773 | ||
a161fe53 AM |
4774 | /* This one will disappear anyway. Don't make a csect sym for it. */ |
4775 | if (sym == abs_section_sym) | |
4776 | return 1; | |
4777 | ||
809ffe0d ILT |
4778 | if (symbol_get_tc (sym)->real_name != (char *) NULL) |
4779 | S_SET_NAME (sym, symbol_get_tc (sym)->real_name); | |
252b5132 RH |
4780 | else |
4781 | { | |
4782 | const char *name; | |
4783 | const char *s; | |
4784 | ||
4785 | name = S_GET_NAME (sym); | |
4786 | s = strchr (name, '['); | |
4787 | if (s != (char *) NULL) | |
4788 | { | |
4789 | unsigned int len; | |
4790 | char *snew; | |
4791 | ||
4792 | len = s - name; | |
4793 | snew = xmalloc (len + 1); | |
4794 | memcpy (snew, name, len); | |
4795 | snew[len] = '\0'; | |
4796 | ||
4797 | S_SET_NAME (sym, snew); | |
4798 | } | |
4799 | } | |
4800 | ||
4801 | if (set_end != (symbolS *) NULL) | |
4802 | { | |
4803 | SA_SET_SYM_ENDNDX (set_end, sym); | |
4804 | set_end = NULL; | |
4805 | } | |
4806 | ||
4807 | if (SF_GET_FUNCTION (sym)) | |
4808 | { | |
4809 | if (ppc_last_function != (symbolS *) NULL) | |
4810 | as_bad (_("two .function pseudo-ops with no intervening .ef")); | |
4811 | ppc_last_function = sym; | |
809ffe0d | 4812 | if (symbol_get_tc (sym)->size != (symbolS *) NULL) |
252b5132 | 4813 | { |
6386f3a7 | 4814 | resolve_symbol_value (symbol_get_tc (sym)->size); |
809ffe0d ILT |
4815 | SA_SET_SYM_FSIZE (sym, |
4816 | (long) S_GET_VALUE (symbol_get_tc (sym)->size)); | |
252b5132 RH |
4817 | } |
4818 | } | |
4819 | else if (S_GET_STORAGE_CLASS (sym) == C_FCN | |
4820 | && strcmp (S_GET_NAME (sym), ".ef") == 0) | |
4821 | { | |
4822 | if (ppc_last_function == (symbolS *) NULL) | |
4823 | as_bad (_(".ef with no preceding .function")); | |
4824 | else | |
4825 | { | |
4826 | set_end = ppc_last_function; | |
4827 | ppc_last_function = NULL; | |
4828 | ||
4829 | /* We don't have a C_EFCN symbol, but we need to force the | |
4830 | COFF backend to believe that it has seen one. */ | |
4831 | coff_last_function = NULL; | |
4832 | } | |
4833 | } | |
4834 | ||
4835 | if (! S_IS_EXTERNAL (sym) | |
809ffe0d | 4836 | && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0 |
252b5132 RH |
4837 | && S_GET_STORAGE_CLASS (sym) != C_FILE |
4838 | && S_GET_STORAGE_CLASS (sym) != C_FCN | |
4839 | && S_GET_STORAGE_CLASS (sym) != C_BLOCK | |
4840 | && S_GET_STORAGE_CLASS (sym) != C_BSTAT | |
4841 | && S_GET_STORAGE_CLASS (sym) != C_ESTAT | |
4842 | && S_GET_STORAGE_CLASS (sym) != C_BINCL | |
4843 | && S_GET_STORAGE_CLASS (sym) != C_EINCL | |
4844 | && S_GET_SEGMENT (sym) != ppc_coff_debug_section) | |
4845 | S_SET_STORAGE_CLASS (sym, C_HIDEXT); | |
4846 | ||
4847 | if (S_GET_STORAGE_CLASS (sym) == C_EXT | |
4848 | || S_GET_STORAGE_CLASS (sym) == C_HIDEXT) | |
4849 | { | |
4850 | int i; | |
4851 | union internal_auxent *a; | |
4852 | ||
4853 | /* Create a csect aux. */ | |
4854 | i = S_GET_NUMBER_AUXILIARY (sym); | |
4855 | S_SET_NUMBER_AUXILIARY (sym, i + 1); | |
809ffe0d ILT |
4856 | a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent; |
4857 | if (symbol_get_tc (sym)->class == XMC_TC0) | |
252b5132 RH |
4858 | { |
4859 | /* This is the TOC table. */ | |
4860 | know (strcmp (S_GET_NAME (sym), "TOC") == 0); | |
4861 | a->x_csect.x_scnlen.l = 0; | |
4862 | a->x_csect.x_smtyp = (2 << 3) | XTY_SD; | |
4863 | } | |
809ffe0d | 4864 | else if (symbol_get_tc (sym)->subseg != 0) |
252b5132 RH |
4865 | { |
4866 | /* This is a csect symbol. x_scnlen is the size of the | |
4867 | csect. */ | |
809ffe0d | 4868 | if (symbol_get_tc (sym)->next == (symbolS *) NULL) |
252b5132 RH |
4869 | a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput, |
4870 | S_GET_SEGMENT (sym)) | |
4871 | - S_GET_VALUE (sym)); | |
4872 | else | |
4873 | { | |
6386f3a7 | 4874 | resolve_symbol_value (symbol_get_tc (sym)->next); |
809ffe0d | 4875 | a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next) |
252b5132 RH |
4876 | - S_GET_VALUE (sym)); |
4877 | } | |
809ffe0d | 4878 | a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD; |
252b5132 RH |
4879 | } |
4880 | else if (S_GET_SEGMENT (sym) == bss_section) | |
4881 | { | |
4882 | /* This is a common symbol. */ | |
809ffe0d ILT |
4883 | a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset; |
4884 | a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM; | |
252b5132 | 4885 | if (S_IS_EXTERNAL (sym)) |
809ffe0d | 4886 | symbol_get_tc (sym)->class = XMC_RW; |
252b5132 | 4887 | else |
809ffe0d | 4888 | symbol_get_tc (sym)->class = XMC_BS; |
252b5132 RH |
4889 | } |
4890 | else if (S_GET_SEGMENT (sym) == absolute_section) | |
4891 | { | |
4892 | /* This is an absolute symbol. The csect will be created by | |
99a814a1 | 4893 | ppc_adjust_symtab. */ |
b34976b6 | 4894 | ppc_saw_abs = TRUE; |
252b5132 | 4895 | a->x_csect.x_smtyp = XTY_LD; |
809ffe0d ILT |
4896 | if (symbol_get_tc (sym)->class == -1) |
4897 | symbol_get_tc (sym)->class = XMC_XO; | |
252b5132 RH |
4898 | } |
4899 | else if (! S_IS_DEFINED (sym)) | |
4900 | { | |
4901 | /* This is an external symbol. */ | |
4902 | a->x_csect.x_scnlen.l = 0; | |
4903 | a->x_csect.x_smtyp = XTY_ER; | |
4904 | } | |
809ffe0d | 4905 | else if (symbol_get_tc (sym)->class == XMC_TC) |
252b5132 RH |
4906 | { |
4907 | symbolS *next; | |
4908 | ||
4909 | /* This is a TOC definition. x_scnlen is the size of the | |
4910 | TOC entry. */ | |
4911 | next = symbol_next (sym); | |
809ffe0d | 4912 | while (symbol_get_tc (next)->class == XMC_TC0) |
252b5132 RH |
4913 | next = symbol_next (next); |
4914 | if (next == (symbolS *) NULL | |
809ffe0d | 4915 | || symbol_get_tc (next)->class != XMC_TC) |
252b5132 RH |
4916 | { |
4917 | if (ppc_after_toc_frag == (fragS *) NULL) | |
4918 | a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput, | |
4919 | data_section) | |
4920 | - S_GET_VALUE (sym)); | |
4921 | else | |
4922 | a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address | |
4923 | - S_GET_VALUE (sym)); | |
4924 | } | |
4925 | else | |
4926 | { | |
6386f3a7 | 4927 | resolve_symbol_value (next); |
252b5132 RH |
4928 | a->x_csect.x_scnlen.l = (S_GET_VALUE (next) |
4929 | - S_GET_VALUE (sym)); | |
4930 | } | |
4931 | a->x_csect.x_smtyp = (2 << 3) | XTY_SD; | |
4932 | } | |
4933 | else | |
4934 | { | |
4935 | symbolS *csect; | |
4936 | ||
4937 | /* This is a normal symbol definition. x_scnlen is the | |
4938 | symbol index of the containing csect. */ | |
4939 | if (S_GET_SEGMENT (sym) == text_section) | |
4940 | csect = ppc_text_csects; | |
4941 | else if (S_GET_SEGMENT (sym) == data_section) | |
4942 | csect = ppc_data_csects; | |
4943 | else | |
4944 | abort (); | |
4945 | ||
4946 | /* Skip the initial dummy symbol. */ | |
809ffe0d | 4947 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
4948 | |
4949 | if (csect == (symbolS *) NULL) | |
4950 | { | |
4951 | as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym)); | |
4952 | a->x_csect.x_scnlen.l = 0; | |
4953 | } | |
4954 | else | |
4955 | { | |
809ffe0d | 4956 | while (symbol_get_tc (csect)->next != (symbolS *) NULL) |
252b5132 | 4957 | { |
6386f3a7 | 4958 | resolve_symbol_value (symbol_get_tc (csect)->next); |
809ffe0d ILT |
4959 | if (S_GET_VALUE (symbol_get_tc (csect)->next) |
4960 | > S_GET_VALUE (sym)) | |
252b5132 | 4961 | break; |
809ffe0d | 4962 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
4963 | } |
4964 | ||
809ffe0d ILT |
4965 | a->x_csect.x_scnlen.p = |
4966 | coffsymbol (symbol_get_bfdsym (csect))->native; | |
4967 | coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen = | |
4968 | 1; | |
252b5132 RH |
4969 | } |
4970 | a->x_csect.x_smtyp = XTY_LD; | |
4971 | } | |
81d4177b | 4972 | |
252b5132 RH |
4973 | a->x_csect.x_parmhash = 0; |
4974 | a->x_csect.x_snhash = 0; | |
809ffe0d | 4975 | if (symbol_get_tc (sym)->class == -1) |
252b5132 RH |
4976 | a->x_csect.x_smclas = XMC_PR; |
4977 | else | |
809ffe0d | 4978 | a->x_csect.x_smclas = symbol_get_tc (sym)->class; |
252b5132 RH |
4979 | a->x_csect.x_stab = 0; |
4980 | a->x_csect.x_snstab = 0; | |
4981 | ||
4982 | /* Don't let the COFF backend resort these symbols. */ | |
809ffe0d | 4983 | symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END; |
252b5132 RH |
4984 | } |
4985 | else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT) | |
4986 | { | |
4987 | /* We want the value to be the symbol index of the referenced | |
4988 | csect symbol. BFD will do that for us if we set the right | |
4989 | flags. */ | |
b782de16 AM |
4990 | asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within); |
4991 | combined_entry_type *c = coffsymbol (bsym)->native; | |
4992 | ||
4993 | S_SET_VALUE (sym, (valueT) (size_t) c); | |
809ffe0d | 4994 | coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1; |
252b5132 RH |
4995 | } |
4996 | else if (S_GET_STORAGE_CLASS (sym) == C_STSYM) | |
4997 | { | |
4998 | symbolS *block; | |
4999 | symbolS *csect; | |
5000 | ||
5001 | /* The value is the offset from the enclosing csect. */ | |
809ffe0d ILT |
5002 | block = symbol_get_tc (sym)->within; |
5003 | csect = symbol_get_tc (block)->within; | |
6386f3a7 | 5004 | resolve_symbol_value (csect); |
252b5132 RH |
5005 | S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect)); |
5006 | } | |
5007 | else if (S_GET_STORAGE_CLASS (sym) == C_BINCL | |
5008 | || S_GET_STORAGE_CLASS (sym) == C_EINCL) | |
5009 | { | |
5010 | /* We want the value to be a file offset into the line numbers. | |
99a814a1 AM |
5011 | BFD will do that for us if we set the right flags. We have |
5012 | already set the value correctly. */ | |
809ffe0d | 5013 | coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1; |
252b5132 RH |
5014 | } |
5015 | ||
5016 | return 0; | |
5017 | } | |
5018 | ||
5019 | /* Adjust the symbol table. This creates csect symbols for all | |
5020 | absolute symbols. */ | |
5021 | ||
5022 | void | |
5023 | ppc_adjust_symtab () | |
5024 | { | |
5025 | symbolS *sym; | |
5026 | ||
5027 | if (! ppc_saw_abs) | |
5028 | return; | |
5029 | ||
5030 | for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym)) | |
5031 | { | |
5032 | symbolS *csect; | |
5033 | int i; | |
5034 | union internal_auxent *a; | |
5035 | ||
5036 | if (S_GET_SEGMENT (sym) != absolute_section) | |
5037 | continue; | |
5038 | ||
5039 | csect = symbol_create (".abs[XO]", absolute_section, | |
5040 | S_GET_VALUE (sym), &zero_address_frag); | |
809ffe0d | 5041 | symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym); |
252b5132 RH |
5042 | S_SET_STORAGE_CLASS (csect, C_HIDEXT); |
5043 | i = S_GET_NUMBER_AUXILIARY (csect); | |
5044 | S_SET_NUMBER_AUXILIARY (csect, i + 1); | |
809ffe0d | 5045 | a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent; |
252b5132 RH |
5046 | a->x_csect.x_scnlen.l = 0; |
5047 | a->x_csect.x_smtyp = XTY_SD; | |
5048 | a->x_csect.x_parmhash = 0; | |
5049 | a->x_csect.x_snhash = 0; | |
5050 | a->x_csect.x_smclas = XMC_XO; | |
5051 | a->x_csect.x_stab = 0; | |
5052 | a->x_csect.x_snstab = 0; | |
5053 | ||
5054 | symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP); | |
5055 | ||
5056 | i = S_GET_NUMBER_AUXILIARY (sym); | |
809ffe0d ILT |
5057 | a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent; |
5058 | a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native; | |
5059 | coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1; | |
252b5132 RH |
5060 | } |
5061 | ||
b34976b6 | 5062 | ppc_saw_abs = FALSE; |
252b5132 RH |
5063 | } |
5064 | ||
5065 | /* Set the VMA for a section. This is called on all the sections in | |
5066 | turn. */ | |
5067 | ||
5068 | void | |
5069 | ppc_frob_section (sec) | |
5070 | asection *sec; | |
5071 | { | |
931e13a6 | 5072 | static bfd_vma vma = 0; |
252b5132 | 5073 | |
931e13a6 | 5074 | vma = md_section_align (sec, vma); |
252b5132 RH |
5075 | bfd_set_section_vma (stdoutput, sec, vma); |
5076 | vma += bfd_section_size (stdoutput, sec); | |
5077 | } | |
5078 | ||
5079 | #endif /* OBJ_XCOFF */ | |
5080 | \f | |
5081 | /* Turn a string in input_line_pointer into a floating point constant | |
bc0d738a NC |
5082 | of type TYPE, and store the appropriate bytes in *LITP. The number |
5083 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
252b5132 RH |
5084 | returned, or NULL on OK. */ |
5085 | ||
5086 | char * | |
5087 | md_atof (type, litp, sizep) | |
5088 | int type; | |
5089 | char *litp; | |
5090 | int *sizep; | |
5091 | { | |
5092 | int prec; | |
5093 | LITTLENUM_TYPE words[4]; | |
5094 | char *t; | |
5095 | int i; | |
5096 | ||
5097 | switch (type) | |
5098 | { | |
5099 | case 'f': | |
5100 | prec = 2; | |
5101 | break; | |
5102 | ||
5103 | case 'd': | |
5104 | prec = 4; | |
5105 | break; | |
5106 | ||
5107 | default: | |
5108 | *sizep = 0; | |
5109 | return _("bad call to md_atof"); | |
5110 | } | |
5111 | ||
5112 | t = atof_ieee (input_line_pointer, type, words); | |
5113 | if (t) | |
5114 | input_line_pointer = t; | |
5115 | ||
5116 | *sizep = prec * 2; | |
5117 | ||
5118 | if (target_big_endian) | |
5119 | { | |
5120 | for (i = 0; i < prec; i++) | |
5121 | { | |
5122 | md_number_to_chars (litp, (valueT) words[i], 2); | |
5123 | litp += 2; | |
5124 | } | |
5125 | } | |
5126 | else | |
5127 | { | |
5128 | for (i = prec - 1; i >= 0; i--) | |
5129 | { | |
5130 | md_number_to_chars (litp, (valueT) words[i], 2); | |
5131 | litp += 2; | |
5132 | } | |
5133 | } | |
81d4177b | 5134 | |
252b5132 RH |
5135 | return NULL; |
5136 | } | |
5137 | ||
5138 | /* Write a value out to the object file, using the appropriate | |
5139 | endianness. */ | |
5140 | ||
5141 | void | |
5142 | md_number_to_chars (buf, val, n) | |
5143 | char *buf; | |
5144 | valueT val; | |
5145 | int n; | |
5146 | { | |
5147 | if (target_big_endian) | |
5148 | number_to_chars_bigendian (buf, val, n); | |
5149 | else | |
5150 | number_to_chars_littleendian (buf, val, n); | |
5151 | } | |
5152 | ||
5153 | /* Align a section (I don't know why this is machine dependent). */ | |
5154 | ||
5155 | valueT | |
5156 | md_section_align (seg, addr) | |
5157 | asection *seg; | |
5158 | valueT addr; | |
5159 | { | |
5160 | int align = bfd_get_section_alignment (stdoutput, seg); | |
5161 | ||
5162 | return ((addr + (1 << align) - 1) & (-1 << align)); | |
5163 | } | |
5164 | ||
5165 | /* We don't have any form of relaxing. */ | |
5166 | ||
5167 | int | |
5168 | md_estimate_size_before_relax (fragp, seg) | |
92161534 ILT |
5169 | fragS *fragp ATTRIBUTE_UNUSED; |
5170 | asection *seg ATTRIBUTE_UNUSED; | |
252b5132 RH |
5171 | { |
5172 | abort (); | |
5173 | return 0; | |
5174 | } | |
5175 | ||
5176 | /* Convert a machine dependent frag. We never generate these. */ | |
5177 | ||
5178 | void | |
5179 | md_convert_frag (abfd, sec, fragp) | |
92161534 ILT |
5180 | bfd *abfd ATTRIBUTE_UNUSED; |
5181 | asection *sec ATTRIBUTE_UNUSED; | |
5182 | fragS *fragp ATTRIBUTE_UNUSED; | |
252b5132 RH |
5183 | { |
5184 | abort (); | |
5185 | } | |
5186 | ||
5187 | /* We have no need to default values of symbols. */ | |
5188 | ||
252b5132 RH |
5189 | symbolS * |
5190 | md_undefined_symbol (name) | |
92161534 | 5191 | char *name ATTRIBUTE_UNUSED; |
252b5132 RH |
5192 | { |
5193 | return 0; | |
5194 | } | |
5195 | \f | |
5196 | /* Functions concerning relocs. */ | |
5197 | ||
5198 | /* The location from which a PC relative jump should be calculated, | |
5199 | given a PC relative reloc. */ | |
5200 | ||
5201 | long | |
5202 | md_pcrel_from_section (fixp, sec) | |
5203 | fixS *fixp; | |
92161534 | 5204 | segT sec ATTRIBUTE_UNUSED; |
252b5132 RH |
5205 | { |
5206 | return fixp->fx_frag->fr_address + fixp->fx_where; | |
5207 | } | |
5208 | ||
5209 | #ifdef OBJ_XCOFF | |
5210 | ||
5211 | /* This is called to see whether a fixup should be adjusted to use a | |
5212 | section symbol. We take the opportunity to change a fixup against | |
5213 | a symbol in the TOC subsegment into a reloc against the | |
5214 | corresponding .tc symbol. */ | |
5215 | ||
5216 | int | |
5217 | ppc_fix_adjustable (fix) | |
5218 | fixS *fix; | |
5219 | { | |
b782de16 AM |
5220 | valueT val = resolve_symbol_value (fix->fx_addsy); |
5221 | segT symseg = S_GET_SEGMENT (fix->fx_addsy); | |
5222 | TC_SYMFIELD_TYPE *tc; | |
5223 | ||
5224 | if (symseg == absolute_section) | |
5225 | return 0; | |
252b5132 | 5226 | |
252b5132 | 5227 | if (ppc_toc_csect != (symbolS *) NULL |
252b5132 | 5228 | && fix->fx_addsy != ppc_toc_csect |
b782de16 | 5229 | && symseg == data_section |
252b5132 RH |
5230 | && val >= ppc_toc_frag->fr_address |
5231 | && (ppc_after_toc_frag == (fragS *) NULL | |
5232 | || val < ppc_after_toc_frag->fr_address)) | |
5233 | { | |
5234 | symbolS *sy; | |
5235 | ||
5236 | for (sy = symbol_next (ppc_toc_csect); | |
5237 | sy != (symbolS *) NULL; | |
5238 | sy = symbol_next (sy)) | |
5239 | { | |
b782de16 AM |
5240 | TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy); |
5241 | ||
5242 | if (sy_tc->class == XMC_TC0) | |
252b5132 | 5243 | continue; |
b782de16 | 5244 | if (sy_tc->class != XMC_TC) |
252b5132 | 5245 | break; |
b782de16 | 5246 | if (val == resolve_symbol_value (sy)) |
252b5132 RH |
5247 | { |
5248 | fix->fx_addsy = sy; | |
5249 | fix->fx_addnumber = val - ppc_toc_frag->fr_address; | |
5250 | return 0; | |
5251 | } | |
5252 | } | |
5253 | ||
5254 | as_bad_where (fix->fx_file, fix->fx_line, | |
5255 | _("symbol in .toc does not match any .tc")); | |
5256 | } | |
5257 | ||
5258 | /* Possibly adjust the reloc to be against the csect. */ | |
b782de16 AM |
5259 | tc = symbol_get_tc (fix->fx_addsy); |
5260 | if (tc->subseg == 0 | |
5261 | && tc->class != XMC_TC0 | |
5262 | && tc->class != XMC_TC | |
5263 | && symseg != bss_section | |
252b5132 | 5264 | /* Don't adjust if this is a reloc in the toc section. */ |
b782de16 | 5265 | && (symseg != data_section |
252b5132 RH |
5266 | || ppc_toc_csect == NULL |
5267 | || val < ppc_toc_frag->fr_address | |
5268 | || (ppc_after_toc_frag != NULL | |
5269 | && val >= ppc_after_toc_frag->fr_address))) | |
5270 | { | |
5271 | symbolS *csect; | |
b782de16 | 5272 | symbolS *next_csect; |
252b5132 | 5273 | |
b782de16 | 5274 | if (symseg == text_section) |
252b5132 | 5275 | csect = ppc_text_csects; |
b782de16 | 5276 | else if (symseg == data_section) |
252b5132 RH |
5277 | csect = ppc_data_csects; |
5278 | else | |
5279 | abort (); | |
5280 | ||
5281 | /* Skip the initial dummy symbol. */ | |
809ffe0d | 5282 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
5283 | |
5284 | if (csect != (symbolS *) NULL) | |
5285 | { | |
b782de16 AM |
5286 | while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL |
5287 | && (symbol_get_frag (next_csect)->fr_address <= val)) | |
252b5132 RH |
5288 | { |
5289 | /* If the csect address equals the symbol value, then we | |
99a814a1 AM |
5290 | have to look through the full symbol table to see |
5291 | whether this is the csect we want. Note that we will | |
5292 | only get here if the csect has zero length. */ | |
b782de16 AM |
5293 | if (symbol_get_frag (csect)->fr_address == val |
5294 | && S_GET_VALUE (csect) == val) | |
252b5132 RH |
5295 | { |
5296 | symbolS *scan; | |
5297 | ||
809ffe0d | 5298 | for (scan = symbol_next (csect); |
252b5132 | 5299 | scan != NULL; |
809ffe0d | 5300 | scan = symbol_next (scan)) |
252b5132 | 5301 | { |
809ffe0d | 5302 | if (symbol_get_tc (scan)->subseg != 0) |
252b5132 RH |
5303 | break; |
5304 | if (scan == fix->fx_addsy) | |
5305 | break; | |
5306 | } | |
5307 | ||
5308 | /* If we found the symbol before the next csect | |
99a814a1 | 5309 | symbol, then this is the csect we want. */ |
252b5132 RH |
5310 | if (scan == fix->fx_addsy) |
5311 | break; | |
5312 | } | |
5313 | ||
b782de16 | 5314 | csect = next_csect; |
252b5132 RH |
5315 | } |
5316 | ||
b782de16 | 5317 | fix->fx_offset += val - symbol_get_frag (csect)->fr_address; |
252b5132 RH |
5318 | fix->fx_addsy = csect; |
5319 | } | |
b782de16 | 5320 | return 0; |
252b5132 RH |
5321 | } |
5322 | ||
5323 | /* Adjust a reloc against a .lcomm symbol to be against the base | |
5324 | .lcomm. */ | |
b782de16 | 5325 | if (symseg == bss_section |
252b5132 RH |
5326 | && ! S_IS_EXTERNAL (fix->fx_addsy)) |
5327 | { | |
b782de16 AM |
5328 | symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol; |
5329 | ||
5330 | fix->fx_offset += val - resolve_symbol_value (sy); | |
5331 | fix->fx_addsy = sy; | |
252b5132 RH |
5332 | } |
5333 | ||
5334 | return 0; | |
5335 | } | |
5336 | ||
5337 | /* A reloc from one csect to another must be kept. The assembler | |
5338 | will, of course, keep relocs between sections, and it will keep | |
5339 | absolute relocs, but we need to force it to keep PC relative relocs | |
5340 | between two csects in the same section. */ | |
5341 | ||
5342 | int | |
5343 | ppc_force_relocation (fix) | |
5344 | fixS *fix; | |
5345 | { | |
5346 | /* At this point fix->fx_addsy should already have been converted to | |
5347 | a csect symbol. If the csect does not include the fragment, then | |
5348 | we need to force the relocation. */ | |
5349 | if (fix->fx_pcrel | |
5350 | && fix->fx_addsy != NULL | |
809ffe0d ILT |
5351 | && symbol_get_tc (fix->fx_addsy)->subseg != 0 |
5352 | && ((symbol_get_frag (fix->fx_addsy)->fr_address | |
5353 | > fix->fx_frag->fr_address) | |
5354 | || (symbol_get_tc (fix->fx_addsy)->next != NULL | |
5355 | && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address | |
252b5132 RH |
5356 | <= fix->fx_frag->fr_address)))) |
5357 | return 1; | |
5358 | ||
ae6063d4 | 5359 | return generic_force_reloc (fix); |
252b5132 RH |
5360 | } |
5361 | ||
5362 | #endif /* OBJ_XCOFF */ | |
5363 | ||
0baf16f2 | 5364 | #ifdef OBJ_ELF |
a161fe53 AM |
5365 | /* If this function returns non-zero, it guarantees that a relocation |
5366 | will be emitted for a fixup. */ | |
5367 | ||
5368 | int | |
5369 | ppc_force_relocation (fix) | |
5370 | fixS *fix; | |
5371 | { | |
5372 | /* Branch prediction relocations must force a relocation, as must | |
5373 | the vtable description relocs. */ | |
5374 | switch (fix->fx_r_type) | |
5375 | { | |
5376 | case BFD_RELOC_PPC_B16_BRTAKEN: | |
5377 | case BFD_RELOC_PPC_B16_BRNTAKEN: | |
5378 | case BFD_RELOC_PPC_BA16_BRTAKEN: | |
5379 | case BFD_RELOC_PPC_BA16_BRNTAKEN: | |
5380 | case BFD_RELOC_PPC64_TOC: | |
a161fe53 AM |
5381 | return 1; |
5382 | default: | |
5383 | break; | |
5384 | } | |
5385 | ||
cdba85ec AM |
5386 | if (fix->fx_r_type >= BFD_RELOC_PPC_TLS |
5387 | && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA) | |
5388 | return 1; | |
5389 | ||
ae6063d4 | 5390 | return generic_force_reloc (fix); |
a161fe53 AM |
5391 | } |
5392 | ||
0baf16f2 AM |
5393 | int |
5394 | ppc_fix_adjustable (fix) | |
5395 | fixS *fix; | |
252b5132 | 5396 | { |
0baf16f2 AM |
5397 | return (fix->fx_r_type != BFD_RELOC_16_GOTOFF |
5398 | && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF | |
5399 | && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF | |
5400 | && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF | |
5401 | && fix->fx_r_type != BFD_RELOC_GPREL16 | |
5402 | && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT | |
5403 | && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY | |
cdba85ec AM |
5404 | && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS |
5405 | && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA) | |
0baf16f2 AM |
5406 | && (fix->fx_pcrel |
5407 | || (fix->fx_subsy != NULL | |
5408 | && (S_GET_SEGMENT (fix->fx_subsy) | |
5409 | == S_GET_SEGMENT (fix->fx_addsy))) | |
5410 | || S_IS_LOCAL (fix->fx_addsy))); | |
252b5132 | 5411 | } |
0baf16f2 | 5412 | #endif |
252b5132 RH |
5413 | |
5414 | /* Apply a fixup to the object code. This is called for all the | |
5415 | fixups we generated by the call to fix_new_exp, above. In the call | |
5416 | above we used a reloc code which was the largest legal reloc code | |
5417 | plus the operand index. Here we undo that to recover the operand | |
5418 | index. At this point all symbol values should be fully resolved, | |
5419 | and we attempt to completely resolve the reloc. If we can not do | |
5420 | that, we determine the correct reloc code and put it back in the | |
5421 | fixup. */ | |
5422 | ||
94f592af NC |
5423 | void |
5424 | md_apply_fix3 (fixP, valP, seg) | |
5425 | fixS *fixP; | |
5426 | valueT * valP; | |
0baf16f2 | 5427 | segT seg ATTRIBUTE_UNUSED; |
252b5132 | 5428 | { |
94f592af | 5429 | valueT value = * valP; |
252b5132 RH |
5430 | |
5431 | #ifdef OBJ_ELF | |
94f592af | 5432 | if (fixP->fx_addsy != NULL) |
252b5132 | 5433 | { |
a161fe53 | 5434 | /* Hack around bfd_install_relocation brain damage. */ |
94f592af NC |
5435 | if (fixP->fx_pcrel) |
5436 | value += fixP->fx_frag->fr_address + fixP->fx_where; | |
252b5132 RH |
5437 | } |
5438 | else | |
94f592af | 5439 | fixP->fx_done = 1; |
252b5132 | 5440 | #else |
a161fe53 | 5441 | /* FIXME FIXME FIXME: The value we are passed in *valP includes |
252b5132 RH |
5442 | the symbol values. Since we are using BFD_ASSEMBLER, if we are |
5443 | doing this relocation the code in write.c is going to call | |
5444 | bfd_install_relocation, which is also going to use the symbol | |
5445 | value. That means that if the reloc is fully resolved we want to | |
a161fe53 | 5446 | use *valP since bfd_install_relocation is not being used. |
252b5132 | 5447 | However, if the reloc is not fully resolved we do not want to use |
a161fe53 AM |
5448 | *valP, and must use fx_offset instead. However, if the reloc |
5449 | is PC relative, we do want to use *valP since it includes the | |
252b5132 | 5450 | result of md_pcrel_from. This is confusing. */ |
94f592af NC |
5451 | if (fixP->fx_addsy == (symbolS *) NULL) |
5452 | fixP->fx_done = 1; | |
5453 | ||
5454 | else if (fixP->fx_pcrel) | |
5455 | ; | |
5456 | ||
252b5132 | 5457 | else |
a161fe53 AM |
5458 | value = fixP->fx_offset; |
5459 | #endif | |
5460 | ||
5461 | if (fixP->fx_subsy != (symbolS *) NULL) | |
252b5132 | 5462 | { |
a161fe53 AM |
5463 | /* We can't actually support subtracting a symbol. */ |
5464 | as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex")); | |
252b5132 | 5465 | } |
252b5132 | 5466 | |
94f592af | 5467 | if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED) |
252b5132 RH |
5468 | { |
5469 | int opindex; | |
5470 | const struct powerpc_operand *operand; | |
5471 | char *where; | |
5472 | unsigned long insn; | |
5473 | ||
94f592af | 5474 | opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED; |
252b5132 RH |
5475 | |
5476 | operand = &powerpc_operands[opindex]; | |
5477 | ||
5478 | #ifdef OBJ_XCOFF | |
0baf16f2 AM |
5479 | /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol |
5480 | does not generate a reloc. It uses the offset of `sym' within its | |
5481 | csect. Other usages, such as `.long sym', generate relocs. This | |
5482 | is the documented behaviour of non-TOC symbols. */ | |
252b5132 RH |
5483 | if ((operand->flags & PPC_OPERAND_PARENS) != 0 |
5484 | && operand->bits == 16 | |
5485 | && operand->shift == 0 | |
2b3c4602 | 5486 | && (operand->insert == NULL || ppc_obj64) |
94f592af NC |
5487 | && fixP->fx_addsy != NULL |
5488 | && symbol_get_tc (fixP->fx_addsy)->subseg != 0 | |
5489 | && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC | |
5490 | && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC0 | |
5491 | && S_GET_SEGMENT (fixP->fx_addsy) != bss_section) | |
252b5132 | 5492 | { |
94f592af NC |
5493 | value = fixP->fx_offset; |
5494 | fixP->fx_done = 1; | |
252b5132 RH |
5495 | } |
5496 | #endif | |
5497 | ||
5498 | /* Fetch the instruction, insert the fully resolved operand | |
5499 | value, and stuff the instruction back again. */ | |
94f592af | 5500 | where = fixP->fx_frag->fr_literal + fixP->fx_where; |
252b5132 RH |
5501 | if (target_big_endian) |
5502 | insn = bfd_getb32 ((unsigned char *) where); | |
5503 | else | |
5504 | insn = bfd_getl32 ((unsigned char *) where); | |
5505 | insn = ppc_insert_operand (insn, operand, (offsetT) value, | |
94f592af | 5506 | fixP->fx_file, fixP->fx_line); |
252b5132 RH |
5507 | if (target_big_endian) |
5508 | bfd_putb32 ((bfd_vma) insn, (unsigned char *) where); | |
5509 | else | |
5510 | bfd_putl32 ((bfd_vma) insn, (unsigned char *) where); | |
5511 | ||
94f592af NC |
5512 | if (fixP->fx_done) |
5513 | /* Nothing else to do here. */ | |
5514 | return; | |
252b5132 | 5515 | |
94f592af | 5516 | assert (fixP->fx_addsy != NULL); |
0baf16f2 | 5517 | |
252b5132 RH |
5518 | /* Determine a BFD reloc value based on the operand information. |
5519 | We are only prepared to turn a few of the operands into | |
0baf16f2 | 5520 | relocs. */ |
11b37b7b AM |
5521 | if ((operand->flags & PPC_OPERAND_RELATIVE) != 0 |
5522 | && operand->bits == 26 | |
5523 | && operand->shift == 0) | |
94f592af | 5524 | fixP->fx_r_type = BFD_RELOC_PPC_B26; |
11b37b7b AM |
5525 | else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0 |
5526 | && operand->bits == 16 | |
5527 | && operand->shift == 0) | |
95210096 AM |
5528 | { |
5529 | fixP->fx_r_type = BFD_RELOC_PPC_B16; | |
5530 | #ifdef OBJ_XCOFF | |
5531 | fixP->fx_size = 2; | |
5532 | if (target_big_endian) | |
5533 | fixP->fx_where += 2; | |
5534 | #endif | |
5535 | } | |
11b37b7b AM |
5536 | else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0 |
5537 | && operand->bits == 26 | |
5538 | && operand->shift == 0) | |
94f592af | 5539 | fixP->fx_r_type = BFD_RELOC_PPC_BA26; |
11b37b7b AM |
5540 | else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0 |
5541 | && operand->bits == 16 | |
5542 | && operand->shift == 0) | |
95210096 AM |
5543 | { |
5544 | fixP->fx_r_type = BFD_RELOC_PPC_BA16; | |
5545 | #ifdef OBJ_XCOFF | |
5546 | fixP->fx_size = 2; | |
5547 | if (target_big_endian) | |
5548 | fixP->fx_where += 2; | |
5549 | #endif | |
5550 | } | |
0baf16f2 | 5551 | #if defined (OBJ_XCOFF) || defined (OBJ_ELF) |
11b37b7b AM |
5552 | else if ((operand->flags & PPC_OPERAND_PARENS) != 0 |
5553 | && operand->bits == 16 | |
a7fc733f | 5554 | && operand->shift == 0) |
11b37b7b | 5555 | { |
a7fc733f AM |
5556 | if (ppc_is_toc_sym (fixP->fx_addsy)) |
5557 | { | |
5558 | fixP->fx_r_type = BFD_RELOC_PPC_TOC16; | |
0baf16f2 | 5559 | #ifdef OBJ_ELF |
a7fc733f AM |
5560 | if (ppc_obj64 |
5561 | && (operand->flags & PPC_OPERAND_DS) != 0) | |
5562 | fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS; | |
5563 | #endif | |
5564 | } | |
5565 | else | |
5566 | { | |
5567 | fixP->fx_r_type = BFD_RELOC_16; | |
5568 | #ifdef OBJ_ELF | |
5569 | if (ppc_obj64 | |
5570 | && (operand->flags & PPC_OPERAND_DS) != 0) | |
5571 | fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS; | |
0baf16f2 | 5572 | #endif |
a7fc733f | 5573 | } |
94f592af | 5574 | fixP->fx_size = 2; |
11b37b7b | 5575 | if (target_big_endian) |
94f592af | 5576 | fixP->fx_where += 2; |
11b37b7b | 5577 | } |
0baf16f2 | 5578 | #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */ |
11b37b7b | 5579 | else |
252b5132 RH |
5580 | { |
5581 | char *sfile; | |
5582 | unsigned int sline; | |
5583 | ||
5584 | /* Use expr_symbol_where to see if this is an expression | |
0baf16f2 | 5585 | symbol. */ |
94f592af NC |
5586 | if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline)) |
5587 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
252b5132 RH |
5588 | _("unresolved expression that must be resolved")); |
5589 | else | |
94f592af | 5590 | as_bad_where (fixP->fx_file, fixP->fx_line, |
0baf16f2 | 5591 | _("unsupported relocation against %s"), |
94f592af NC |
5592 | S_GET_NAME (fixP->fx_addsy)); |
5593 | fixP->fx_done = 1; | |
5594 | return; | |
252b5132 RH |
5595 | } |
5596 | } | |
5597 | else | |
5598 | { | |
5599 | #ifdef OBJ_ELF | |
94f592af | 5600 | ppc_elf_validate_fix (fixP, seg); |
252b5132 | 5601 | #endif |
94f592af | 5602 | switch (fixP->fx_r_type) |
252b5132 | 5603 | { |
252b5132 | 5604 | case BFD_RELOC_CTOR: |
2b3c4602 | 5605 | if (ppc_obj64) |
9c7977b3 AM |
5606 | goto ctor64; |
5607 | /* fall through */ | |
5608 | ||
0baf16f2 | 5609 | case BFD_RELOC_32: |
94f592af NC |
5610 | if (fixP->fx_pcrel) |
5611 | fixP->fx_r_type = BFD_RELOC_32_PCREL; | |
99a814a1 | 5612 | /* fall through */ |
252b5132 RH |
5613 | |
5614 | case BFD_RELOC_RVA: | |
5615 | case BFD_RELOC_32_PCREL: | |
252b5132 | 5616 | case BFD_RELOC_PPC_EMB_NADDR32: |
94f592af | 5617 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
252b5132 RH |
5618 | value, 4); |
5619 | break; | |
5620 | ||
7f6d05e8 | 5621 | case BFD_RELOC_64: |
9c7977b3 | 5622 | ctor64: |
94f592af NC |
5623 | if (fixP->fx_pcrel) |
5624 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
99a814a1 | 5625 | /* fall through */ |
0baf16f2 | 5626 | |
7f6d05e8 | 5627 | case BFD_RELOC_64_PCREL: |
94f592af | 5628 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
7f6d05e8 | 5629 | value, 8); |
81d4177b | 5630 | break; |
0baf16f2 | 5631 | |
252b5132 RH |
5632 | case BFD_RELOC_LO16: |
5633 | case BFD_RELOC_16: | |
5634 | case BFD_RELOC_GPREL16: | |
5635 | case BFD_RELOC_16_GOT_PCREL: | |
5636 | case BFD_RELOC_16_GOTOFF: | |
5637 | case BFD_RELOC_LO16_GOTOFF: | |
5638 | case BFD_RELOC_HI16_GOTOFF: | |
5639 | case BFD_RELOC_HI16_S_GOTOFF: | |
1cfc59d5 | 5640 | case BFD_RELOC_16_BASEREL: |
252b5132 RH |
5641 | case BFD_RELOC_LO16_BASEREL: |
5642 | case BFD_RELOC_HI16_BASEREL: | |
5643 | case BFD_RELOC_HI16_S_BASEREL: | |
5644 | case BFD_RELOC_PPC_EMB_NADDR16: | |
5645 | case BFD_RELOC_PPC_EMB_NADDR16_LO: | |
5646 | case BFD_RELOC_PPC_EMB_NADDR16_HI: | |
5647 | case BFD_RELOC_PPC_EMB_NADDR16_HA: | |
5648 | case BFD_RELOC_PPC_EMB_SDAI16: | |
5649 | case BFD_RELOC_PPC_EMB_SDA2REL: | |
5650 | case BFD_RELOC_PPC_EMB_SDA2I16: | |
5651 | case BFD_RELOC_PPC_EMB_RELSEC16: | |
5652 | case BFD_RELOC_PPC_EMB_RELST_LO: | |
5653 | case BFD_RELOC_PPC_EMB_RELST_HI: | |
5654 | case BFD_RELOC_PPC_EMB_RELST_HA: | |
5655 | case BFD_RELOC_PPC_EMB_RELSDA: | |
5656 | case BFD_RELOC_PPC_TOC16: | |
0baf16f2 | 5657 | #ifdef OBJ_ELF |
0baf16f2 AM |
5658 | case BFD_RELOC_PPC64_TOC16_LO: |
5659 | case BFD_RELOC_PPC64_TOC16_HI: | |
5660 | case BFD_RELOC_PPC64_TOC16_HA: | |
0baf16f2 | 5661 | #endif |
94f592af | 5662 | if (fixP->fx_pcrel) |
252b5132 | 5663 | { |
94f592af NC |
5664 | if (fixP->fx_addsy != NULL) |
5665 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
252b5132 | 5666 | _("cannot emit PC relative %s relocation against %s"), |
94f592af NC |
5667 | bfd_get_reloc_code_name (fixP->fx_r_type), |
5668 | S_GET_NAME (fixP->fx_addsy)); | |
252b5132 | 5669 | else |
94f592af | 5670 | as_bad_where (fixP->fx_file, fixP->fx_line, |
252b5132 | 5671 | _("cannot emit PC relative %s relocation"), |
94f592af | 5672 | bfd_get_reloc_code_name (fixP->fx_r_type)); |
252b5132 RH |
5673 | } |
5674 | ||
94f592af | 5675 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
252b5132 RH |
5676 | value, 2); |
5677 | break; | |
5678 | ||
5679 | /* This case happens when you write, for example, | |
5680 | lis %r3,(L1-L2)@ha | |
5681 | where L1 and L2 are defined later. */ | |
5682 | case BFD_RELOC_HI16: | |
94f592af | 5683 | if (fixP->fx_pcrel) |
252b5132 | 5684 | abort (); |
94f592af | 5685 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 | 5686 | PPC_HI (value), 2); |
252b5132 | 5687 | break; |
0baf16f2 | 5688 | |
252b5132 | 5689 | case BFD_RELOC_HI16_S: |
94f592af | 5690 | if (fixP->fx_pcrel) |
252b5132 | 5691 | abort (); |
94f592af | 5692 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5693 | PPC_HA (value), 2); |
5694 | break; | |
5695 | ||
5696 | #ifdef OBJ_ELF | |
0baf16f2 | 5697 | case BFD_RELOC_PPC64_HIGHER: |
94f592af | 5698 | if (fixP->fx_pcrel) |
0baf16f2 | 5699 | abort (); |
94f592af | 5700 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 | 5701 | PPC_HIGHER (value), 2); |
252b5132 RH |
5702 | break; |
5703 | ||
0baf16f2 | 5704 | case BFD_RELOC_PPC64_HIGHER_S: |
94f592af | 5705 | if (fixP->fx_pcrel) |
0baf16f2 | 5706 | abort (); |
94f592af | 5707 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5708 | PPC_HIGHERA (value), 2); |
5709 | break; | |
5710 | ||
5711 | case BFD_RELOC_PPC64_HIGHEST: | |
94f592af | 5712 | if (fixP->fx_pcrel) |
0baf16f2 | 5713 | abort (); |
94f592af | 5714 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5715 | PPC_HIGHEST (value), 2); |
5716 | break; | |
5717 | ||
5718 | case BFD_RELOC_PPC64_HIGHEST_S: | |
94f592af | 5719 | if (fixP->fx_pcrel) |
0baf16f2 | 5720 | abort (); |
94f592af | 5721 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5722 | PPC_HIGHESTA (value), 2); |
5723 | break; | |
5724 | ||
5725 | case BFD_RELOC_PPC64_ADDR16_DS: | |
5726 | case BFD_RELOC_PPC64_ADDR16_LO_DS: | |
5727 | case BFD_RELOC_PPC64_GOT16_DS: | |
5728 | case BFD_RELOC_PPC64_GOT16_LO_DS: | |
5729 | case BFD_RELOC_PPC64_PLT16_LO_DS: | |
5730 | case BFD_RELOC_PPC64_SECTOFF_DS: | |
5731 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: | |
5732 | case BFD_RELOC_PPC64_TOC16_DS: | |
5733 | case BFD_RELOC_PPC64_TOC16_LO_DS: | |
5734 | case BFD_RELOC_PPC64_PLTGOT16_DS: | |
5735 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: | |
94f592af | 5736 | if (fixP->fx_pcrel) |
0baf16f2 AM |
5737 | abort (); |
5738 | { | |
94f592af | 5739 | unsigned char *where = fixP->fx_frag->fr_literal + fixP->fx_where; |
3d8aea2f | 5740 | unsigned long val, mask; |
0baf16f2 AM |
5741 | |
5742 | if (target_big_endian) | |
adadcc0c | 5743 | val = bfd_getb32 (where - 2); |
0baf16f2 | 5744 | else |
adadcc0c AM |
5745 | val = bfd_getl32 (where); |
5746 | mask = 0xfffc; | |
5747 | /* lq insns reserve the four lsbs. */ | |
5748 | if ((ppc_cpu & PPC_OPCODE_POWER4) != 0 | |
77a6138a | 5749 | && (val & (0x3f << 26)) == (56u << 26)) |
adadcc0c AM |
5750 | mask = 0xfff0; |
5751 | val |= value & mask; | |
0baf16f2 AM |
5752 | if (target_big_endian) |
5753 | bfd_putb16 ((bfd_vma) val, where); | |
5754 | else | |
5755 | bfd_putl16 ((bfd_vma) val, where); | |
5756 | } | |
5757 | break; | |
cdba85ec | 5758 | |
ba0b2174 AM |
5759 | case BFD_RELOC_PPC_B16_BRTAKEN: |
5760 | case BFD_RELOC_PPC_B16_BRNTAKEN: | |
5761 | case BFD_RELOC_PPC_BA16_BRTAKEN: | |
5762 | case BFD_RELOC_PPC_BA16_BRNTAKEN: | |
5763 | break; | |
5764 | ||
cdba85ec AM |
5765 | case BFD_RELOC_PPC_TLS: |
5766 | case BFD_RELOC_PPC_DTPMOD: | |
5767 | case BFD_RELOC_PPC_TPREL16: | |
5768 | case BFD_RELOC_PPC_TPREL16_LO: | |
5769 | case BFD_RELOC_PPC_TPREL16_HI: | |
5770 | case BFD_RELOC_PPC_TPREL16_HA: | |
5771 | case BFD_RELOC_PPC_TPREL: | |
5772 | case BFD_RELOC_PPC_DTPREL16: | |
5773 | case BFD_RELOC_PPC_DTPREL16_LO: | |
5774 | case BFD_RELOC_PPC_DTPREL16_HI: | |
5775 | case BFD_RELOC_PPC_DTPREL16_HA: | |
5776 | case BFD_RELOC_PPC_DTPREL: | |
5777 | case BFD_RELOC_PPC_GOT_TLSGD16: | |
5778 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: | |
5779 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: | |
5780 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: | |
5781 | case BFD_RELOC_PPC_GOT_TLSLD16: | |
5782 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: | |
5783 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: | |
5784 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: | |
5785 | case BFD_RELOC_PPC_GOT_TPREL16: | |
5786 | case BFD_RELOC_PPC_GOT_TPREL16_LO: | |
5787 | case BFD_RELOC_PPC_GOT_TPREL16_HI: | |
5788 | case BFD_RELOC_PPC_GOT_TPREL16_HA: | |
5789 | case BFD_RELOC_PPC_GOT_DTPREL16: | |
5790 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: | |
5791 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: | |
5792 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: | |
5793 | case BFD_RELOC_PPC64_TPREL16_DS: | |
5794 | case BFD_RELOC_PPC64_TPREL16_LO_DS: | |
5795 | case BFD_RELOC_PPC64_TPREL16_HIGHER: | |
5796 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: | |
5797 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: | |
5798 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: | |
5799 | case BFD_RELOC_PPC64_DTPREL16_DS: | |
5800 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: | |
5801 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: | |
5802 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: | |
5803 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: | |
5804 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: | |
5805 | break; | |
0baf16f2 | 5806 | #endif |
252b5132 | 5807 | /* Because SDA21 modifies the register field, the size is set to 4 |
99a814a1 | 5808 | bytes, rather than 2, so offset it here appropriately. */ |
252b5132 | 5809 | case BFD_RELOC_PPC_EMB_SDA21: |
94f592af | 5810 | if (fixP->fx_pcrel) |
252b5132 RH |
5811 | abort (); |
5812 | ||
94f592af | 5813 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where |
252b5132 RH |
5814 | + ((target_big_endian) ? 2 : 0), |
5815 | value, 2); | |
5816 | break; | |
5817 | ||
5818 | case BFD_RELOC_8: | |
94f592af | 5819 | if (fixP->fx_pcrel) |
252b5132 RH |
5820 | abort (); |
5821 | ||
94f592af | 5822 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
252b5132 RH |
5823 | value, 1); |
5824 | break; | |
5825 | ||
5826 | case BFD_RELOC_24_PLT_PCREL: | |
5827 | case BFD_RELOC_PPC_LOCAL24PC: | |
94f592af | 5828 | if (!fixP->fx_pcrel && !fixP->fx_done) |
252b5132 RH |
5829 | abort (); |
5830 | ||
94f592af | 5831 | if (fixP->fx_done) |
99a814a1 AM |
5832 | { |
5833 | char *where; | |
5834 | unsigned long insn; | |
5835 | ||
5836 | /* Fetch the instruction, insert the fully resolved operand | |
5837 | value, and stuff the instruction back again. */ | |
94f592af | 5838 | where = fixP->fx_frag->fr_literal + fixP->fx_where; |
99a814a1 AM |
5839 | if (target_big_endian) |
5840 | insn = bfd_getb32 ((unsigned char *) where); | |
5841 | else | |
5842 | insn = bfd_getl32 ((unsigned char *) where); | |
5843 | if ((value & 3) != 0) | |
94f592af | 5844 | as_bad_where (fixP->fx_file, fixP->fx_line, |
99a814a1 AM |
5845 | _("must branch to an address a multiple of 4")); |
5846 | if ((offsetT) value < -0x40000000 | |
5847 | || (offsetT) value >= 0x40000000) | |
94f592af | 5848 | as_bad_where (fixP->fx_file, fixP->fx_line, |
99a814a1 AM |
5849 | _("@local or @plt branch destination is too far away, %ld bytes"), |
5850 | (long) value); | |
5851 | insn = insn | (value & 0x03fffffc); | |
5852 | if (target_big_endian) | |
5853 | bfd_putb32 ((bfd_vma) insn, (unsigned char *) where); | |
5854 | else | |
5855 | bfd_putl32 ((bfd_vma) insn, (unsigned char *) where); | |
5856 | } | |
252b5132 RH |
5857 | break; |
5858 | ||
5859 | case BFD_RELOC_VTABLE_INHERIT: | |
94f592af NC |
5860 | fixP->fx_done = 0; |
5861 | if (fixP->fx_addsy | |
5862 | && !S_IS_DEFINED (fixP->fx_addsy) | |
5863 | && !S_IS_WEAK (fixP->fx_addsy)) | |
5864 | S_SET_WEAK (fixP->fx_addsy); | |
252b5132 RH |
5865 | break; |
5866 | ||
5867 | case BFD_RELOC_VTABLE_ENTRY: | |
94f592af | 5868 | fixP->fx_done = 0; |
252b5132 RH |
5869 | break; |
5870 | ||
0baf16f2 | 5871 | #ifdef OBJ_ELF |
0baf16f2 AM |
5872 | /* Generated by reference to `sym@tocbase'. The sym is |
5873 | ignored by the linker. */ | |
5874 | case BFD_RELOC_PPC64_TOC: | |
94f592af | 5875 | fixP->fx_done = 0; |
0baf16f2 | 5876 | break; |
0baf16f2 | 5877 | #endif |
252b5132 | 5878 | default: |
bc805888 | 5879 | fprintf (stderr, |
94f592af | 5880 | _("Gas failure, reloc value %d\n"), fixP->fx_r_type); |
99a814a1 | 5881 | fflush (stderr); |
252b5132 RH |
5882 | abort (); |
5883 | } | |
5884 | } | |
5885 | ||
5886 | #ifdef OBJ_ELF | |
94f592af | 5887 | fixP->fx_addnumber = value; |
252b5132 | 5888 | #else |
94f592af NC |
5889 | if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16) |
5890 | fixP->fx_addnumber = 0; | |
252b5132 RH |
5891 | else |
5892 | { | |
5893 | #ifdef TE_PE | |
94f592af | 5894 | fixP->fx_addnumber = 0; |
252b5132 RH |
5895 | #else |
5896 | /* We want to use the offset within the data segment of the | |
5897 | symbol, not the actual VMA of the symbol. */ | |
94f592af NC |
5898 | fixP->fx_addnumber = |
5899 | - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy)); | |
252b5132 RH |
5900 | #endif |
5901 | } | |
5902 | #endif | |
252b5132 RH |
5903 | } |
5904 | ||
5905 | /* Generate a reloc for a fixup. */ | |
5906 | ||
5907 | arelent * | |
5908 | tc_gen_reloc (seg, fixp) | |
92161534 | 5909 | asection *seg ATTRIBUTE_UNUSED; |
252b5132 RH |
5910 | fixS *fixp; |
5911 | { | |
5912 | arelent *reloc; | |
5913 | ||
5914 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
5915 | ||
49309057 ILT |
5916 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
5917 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
5918 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
5919 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
5920 | if (reloc->howto == (reloc_howto_type *) NULL) | |
5921 | { | |
5922 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
99a814a1 AM |
5923 | _("reloc %d not supported by object file format"), |
5924 | (int) fixp->fx_r_type); | |
252b5132 RH |
5925 | return NULL; |
5926 | } | |
5927 | reloc->addend = fixp->fx_addnumber; | |
5928 | ||
5929 | return reloc; | |
5930 | } | |
75e21f08 JJ |
5931 | |
5932 | void | |
5933 | ppc_cfi_frame_initial_instructions () | |
5934 | { | |
5935 | cfi_add_CFA_def_cfa (1, 0); | |
5936 | } | |
5937 | ||
5938 | int | |
5939 | tc_ppc_regname_to_dw2regnum (const char *regname) | |
5940 | { | |
5941 | unsigned int regnum = -1; | |
5942 | unsigned int i; | |
5943 | const char *p; | |
5944 | char *q; | |
5945 | static struct { char *name; int dw2regnum; } regnames[] = | |
5946 | { | |
5947 | { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 }, | |
5948 | { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 }, | |
5949 | { "cc", 68 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 }, | |
5950 | { "spe_acc", 111 }, { "spefscr", 112 } | |
5951 | }; | |
5952 | ||
5953 | for (i = 0; i < ARRAY_SIZE (regnames); ++i) | |
5954 | if (strcmp (regnames[i].name, regname) == 0) | |
5955 | return regnames[i].dw2regnum; | |
5956 | ||
5957 | if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v') | |
5958 | { | |
5959 | p = regname + 1 + (regname[1] == '.'); | |
5960 | regnum = strtoul (p, &q, 10); | |
5961 | if (p == q || *q || regnum >= 32) | |
5962 | return -1; | |
5963 | if (regname[0] == 'f') | |
5964 | regnum += 32; | |
5965 | else if (regname[0] == 'v') | |
5966 | regnum += 77; | |
5967 | } | |
5968 | else if (regname[0] == 'c' && regname[1] == 'r') | |
5969 | { | |
5970 | p = regname + 2 + (regname[2] == '.'); | |
5971 | if (p[0] < '0' || p[0] > '7' || p[1]) | |
5972 | return -1; | |
5973 | regnum = p[0] - '0' + 68; | |
5974 | } | |
5975 | return regnum; | |
5976 | } |