Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000) |
b7d7dc63 AM |
2 | Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
3 | 2004 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 | 185 | |
b7d7dc63 | 186 | /* '+' and '-' can be used as postfix predicate predictors for conditional |
5ce8663f NC |
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 | 821 | |
69c040df AM |
822 | |
823 | /* Handle -m options that set cpu type, and .machine arg. */ | |
824 | ||
825 | static int | |
826 | parse_cpu (const char *arg) | |
827 | { | |
828 | /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2 | |
829 | (RIOS2). */ | |
830 | if (strcmp (arg, "pwrx") == 0 || strcmp (arg, "pwr2") == 0) | |
831 | ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32; | |
832 | /* -mpwr means to assemble for the IBM POWER (RIOS1). */ | |
833 | else if (strcmp (arg, "pwr") == 0) | |
834 | ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32; | |
835 | /* -m601 means to assemble for the PowerPC 601, which includes | |
836 | instructions that are holdovers from the Power. */ | |
837 | else if (strcmp (arg, "601") == 0) | |
838 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | |
839 | | PPC_OPCODE_601 | PPC_OPCODE_32); | |
840 | /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the | |
841 | PowerPC 603/604. */ | |
842 | else if (strcmp (arg, "ppc") == 0 | |
843 | || strcmp (arg, "ppc32") == 0 | |
844 | || strcmp (arg, "603") == 0 | |
845 | || strcmp (arg, "604") == 0) | |
846 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32; | |
847 | /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */ | |
848 | else if (strcmp (arg, "403") == 0 | |
849 | || strcmp (arg, "405") == 0) | |
850 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | |
851 | | PPC_OPCODE_403 | PPC_OPCODE_32); | |
852 | else if (strcmp (arg, "440") == 0) | |
853 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32 | |
854 | | PPC_OPCODE_440 | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI); | |
855 | else if (strcmp (arg, "7400") == 0 | |
856 | || strcmp (arg, "7410") == 0 | |
857 | || strcmp (arg, "7450") == 0 | |
858 | || strcmp (arg, "7455") == 0) | |
859 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | |
860 | | PPC_OPCODE_ALTIVEC | PPC_OPCODE_32); | |
861 | else if (strcmp (arg, "altivec") == 0) | |
862 | { | |
863 | if (ppc_cpu == 0) | |
864 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC; | |
865 | else | |
866 | ppc_cpu |= PPC_OPCODE_ALTIVEC; | |
867 | } | |
868 | else if (strcmp (arg, "e500") == 0 || strcmp (arg, "e500x2") == 0) | |
869 | { | |
870 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE | |
871 | | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK | |
872 | | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | |
873 | | PPC_OPCODE_RFMCI); | |
874 | } | |
875 | else if (strcmp (arg, "spe") == 0) | |
876 | { | |
877 | if (ppc_cpu == 0) | |
878 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_SPE | PPC_OPCODE_EFS; | |
879 | else | |
880 | ppc_cpu |= PPC_OPCODE_SPE; | |
881 | } | |
882 | /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC | |
883 | 620. */ | |
884 | else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0) | |
885 | { | |
886 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64; | |
887 | } | |
888 | else if (strcmp (arg, "ppc64bridge") == 0) | |
889 | { | |
890 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | |
891 | | PPC_OPCODE_64_BRIDGE | PPC_OPCODE_64); | |
892 | } | |
893 | /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */ | |
894 | else if (strcmp (arg, "booke") == 0 || strcmp (arg, "booke32") == 0) | |
895 | { | |
896 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32; | |
897 | } | |
898 | /* -mbooke64 means enable 64-bit BookE support. */ | |
899 | else if (strcmp (arg, "booke64") == 0) | |
900 | { | |
901 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | |
902 | | PPC_OPCODE_BOOKE64 | PPC_OPCODE_64); | |
903 | } | |
904 | else if (strcmp (arg, "power4") == 0) | |
905 | { | |
906 | ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | |
907 | | PPC_OPCODE_64 | PPC_OPCODE_POWER4); | |
908 | } | |
909 | /* -mcom means assemble for the common intersection between Power | |
910 | and PowerPC. At present, we just allow the union, rather | |
911 | than the intersection. */ | |
912 | else if (strcmp (arg, "com") == 0) | |
913 | ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32; | |
914 | /* -many means to assemble for any architecture (PWR/PWRX/PPC). */ | |
915 | else if (strcmp (arg, "any") == 0) | |
916 | ppc_cpu |= PPC_OPCODE_ANY; | |
917 | else | |
918 | return 0; | |
919 | ||
920 | return 1; | |
921 | } | |
922 | ||
252b5132 RH |
923 | int |
924 | md_parse_option (c, arg) | |
925 | int c; | |
926 | char *arg; | |
927 | { | |
928 | switch (c) | |
929 | { | |
930 | case 'u': | |
931 | /* -u means that any undefined symbols should be treated as | |
932 | external, which is the default for gas anyhow. */ | |
933 | break; | |
934 | ||
935 | #ifdef OBJ_ELF | |
936 | case 'l': | |
937 | /* Solaris as takes -le (presumably for little endian). For completeness | |
99a814a1 | 938 | sake, recognize -be also. */ |
252b5132 RH |
939 | if (strcmp (arg, "e") == 0) |
940 | { | |
941 | target_big_endian = 0; | |
942 | set_target_endian = 1; | |
943 | } | |
944 | else | |
945 | return 0; | |
946 | ||
947 | break; | |
948 | ||
949 | case 'b': | |
950 | if (strcmp (arg, "e") == 0) | |
951 | { | |
952 | target_big_endian = 1; | |
953 | set_target_endian = 1; | |
954 | } | |
955 | else | |
956 | return 0; | |
957 | ||
958 | break; | |
959 | ||
960 | case 'K': | |
99a814a1 | 961 | /* Recognize -K PIC. */ |
252b5132 RH |
962 | if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0) |
963 | { | |
964 | shlib = SHLIB_PIC; | |
965 | ppc_flags |= EF_PPC_RELOCATABLE_LIB; | |
966 | } | |
967 | else | |
968 | return 0; | |
969 | ||
970 | break; | |
971 | #endif | |
972 | ||
7f6d05e8 CP |
973 | /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */ |
974 | case 'a': | |
975 | if (strcmp (arg, "64") == 0) | |
2a98c3a6 AM |
976 | { |
977 | #ifdef BFD64 | |
978 | ppc_obj64 = 1; | |
979 | #else | |
980 | as_fatal (_("%s unsupported"), "-a64"); | |
981 | #endif | |
982 | } | |
7f6d05e8 | 983 | else if (strcmp (arg, "32") == 0) |
2b3c4602 | 984 | ppc_obj64 = 0; |
7f6d05e8 CP |
985 | else |
986 | return 0; | |
987 | break; | |
81d4177b | 988 | |
252b5132 | 989 | case 'm': |
69c040df AM |
990 | if (parse_cpu (arg)) |
991 | ; | |
252b5132 RH |
992 | |
993 | else if (strcmp (arg, "regnames") == 0) | |
b34976b6 | 994 | reg_names_p = TRUE; |
252b5132 RH |
995 | |
996 | else if (strcmp (arg, "no-regnames") == 0) | |
b34976b6 | 997 | reg_names_p = FALSE; |
252b5132 RH |
998 | |
999 | #ifdef OBJ_ELF | |
99a814a1 AM |
1000 | /* -mrelocatable/-mrelocatable-lib -- warn about initializations |
1001 | that require relocation. */ | |
252b5132 RH |
1002 | else if (strcmp (arg, "relocatable") == 0) |
1003 | { | |
5d6f4f16 | 1004 | shlib = SHLIB_MRELOCATABLE; |
252b5132 RH |
1005 | ppc_flags |= EF_PPC_RELOCATABLE; |
1006 | } | |
1007 | ||
1008 | else if (strcmp (arg, "relocatable-lib") == 0) | |
1009 | { | |
5d6f4f16 | 1010 | shlib = SHLIB_MRELOCATABLE; |
252b5132 RH |
1011 | ppc_flags |= EF_PPC_RELOCATABLE_LIB; |
1012 | } | |
1013 | ||
99a814a1 | 1014 | /* -memb, set embedded bit. */ |
252b5132 RH |
1015 | else if (strcmp (arg, "emb") == 0) |
1016 | ppc_flags |= EF_PPC_EMB; | |
1017 | ||
99a814a1 AM |
1018 | /* -mlittle/-mbig set the endianess. */ |
1019 | else if (strcmp (arg, "little") == 0 | |
1020 | || strcmp (arg, "little-endian") == 0) | |
252b5132 RH |
1021 | { |
1022 | target_big_endian = 0; | |
1023 | set_target_endian = 1; | |
1024 | } | |
1025 | ||
1026 | else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0) | |
1027 | { | |
1028 | target_big_endian = 1; | |
1029 | set_target_endian = 1; | |
1030 | } | |
1031 | ||
1032 | else if (strcmp (arg, "solaris") == 0) | |
1033 | { | |
b34976b6 | 1034 | msolaris = TRUE; |
252b5132 RH |
1035 | ppc_comment_chars = ppc_solaris_comment_chars; |
1036 | } | |
1037 | ||
1038 | else if (strcmp (arg, "no-solaris") == 0) | |
1039 | { | |
b34976b6 | 1040 | msolaris = FALSE; |
252b5132 RH |
1041 | ppc_comment_chars = ppc_eabi_comment_chars; |
1042 | } | |
1043 | #endif | |
1044 | else | |
1045 | { | |
1046 | as_bad (_("invalid switch -m%s"), arg); | |
1047 | return 0; | |
1048 | } | |
1049 | break; | |
1050 | ||
1051 | #ifdef OBJ_ELF | |
1052 | /* -V: SVR4 argument to print version ID. */ | |
1053 | case 'V': | |
1054 | print_version_id (); | |
1055 | break; | |
1056 | ||
1057 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section | |
1058 | should be emitted or not. FIXME: Not implemented. */ | |
1059 | case 'Q': | |
1060 | break; | |
1061 | ||
1062 | /* Solaris takes -s to specify that .stabs go in a .stabs section, | |
1063 | rather than .stabs.excl, which is ignored by the linker. | |
1064 | FIXME: Not implemented. */ | |
1065 | case 's': | |
1066 | if (arg) | |
1067 | return 0; | |
1068 | ||
1069 | break; | |
1070 | #endif | |
1071 | ||
1072 | default: | |
1073 | return 0; | |
1074 | } | |
1075 | ||
1076 | return 1; | |
1077 | } | |
1078 | ||
1079 | void | |
1080 | md_show_usage (stream) | |
1081 | FILE *stream; | |
1082 | { | |
bc805888 | 1083 | fprintf (stream, _("\ |
252b5132 | 1084 | PowerPC options:\n\ |
df12615d AM |
1085 | -a32 generate ELF32/XCOFF32\n\ |
1086 | -a64 generate ELF64/XCOFF64\n\ | |
252b5132 | 1087 | -u ignored\n\ |
23e1d84c AM |
1088 | -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\ |
1089 | -mpwr generate code for POWER (RIOS1)\n\ | |
1090 | -m601 generate code for PowerPC 601\n\ | |
418c1742 | 1091 | -mppc, -mppc32, -m603, -m604\n\ |
23e1d84c | 1092 | generate code for PowerPC 603/604\n\ |
df12615d | 1093 | -m403, -m405 generate code for PowerPC 403/405\n\ |
3d8aea2f | 1094 | -m440 generate code for PowerPC 440\n\ |
f5c120c5 | 1095 | -m7400, -m7410, -m7450, -m7455\n\ |
df12615d AM |
1096 | generate code For PowerPC 7400/7410/7450/7455\n")); |
1097 | fprintf (stream, _("\ | |
23e1d84c | 1098 | -mppc64, -m620 generate code for PowerPC 620/625/630\n\ |
d0e9a01c | 1099 | -mppc64bridge generate code for PowerPC 64, including bridge insns\n\ |
a09cf9bd MG |
1100 | -mbooke64 generate code for 64-bit PowerPC BookE\n\ |
1101 | -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\ | |
23e1d84c | 1102 | -mpower4 generate code for Power4 architecture\n\ |
252b5132 | 1103 | -mcom generate code Power/PowerPC common instructions\n\ |
df12615d | 1104 | -many generate code for any architecture (PWR/PWRX/PPC)\n")); |
6a0c61b7 | 1105 | fprintf (stream, _("\ |
df12615d | 1106 | -maltivec generate code for AltiVec\n\ |
6a0c61b7 | 1107 | -me500, -me500x2 generate code for Motorola e500 core complex\n\ |
df12615d AM |
1108 | -mspe generate code for Motorola SPE instructions\n\ |
1109 | -mregnames Allow symbolic names for registers\n\ | |
1110 | -mno-regnames Do not allow symbolic names for registers\n")); | |
252b5132 | 1111 | #ifdef OBJ_ELF |
bc805888 | 1112 | fprintf (stream, _("\ |
252b5132 RH |
1113 | -mrelocatable support for GCC's -mrelocatble option\n\ |
1114 | -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\ | |
1115 | -memb set PPC_EMB bit in ELF flags\n\ | |
df12615d | 1116 | -mlittle, -mlittle-endian, -l, -le\n\ |
252b5132 | 1117 | generate code for a little endian machine\n\ |
df12615d AM |
1118 | -mbig, -mbig-endian, -b, -be\n\ |
1119 | generate code for a big endian machine\n\ | |
252b5132 RH |
1120 | -msolaris generate code for Solaris\n\ |
1121 | -mno-solaris do not generate code for Solaris\n\ | |
1122 | -V print assembler version number\n\ | |
1123 | -Qy, -Qn ignored\n")); | |
1124 | #endif | |
1125 | } | |
1126 | \f | |
1127 | /* Set ppc_cpu if it is not already set. */ | |
1128 | ||
1129 | static void | |
1130 | ppc_set_cpu () | |
1131 | { | |
1132 | const char *default_os = TARGET_OS; | |
1133 | const char *default_cpu = TARGET_CPU; | |
1134 | ||
3c9030c1 | 1135 | if ((ppc_cpu & ~PPC_OPCODE_ANY) == 0) |
252b5132 | 1136 | { |
2a98c3a6 | 1137 | if (ppc_obj64) |
3c9030c1 | 1138 | ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64; |
2a98c3a6 AM |
1139 | else if (strncmp (default_os, "aix", 3) == 0 |
1140 | && default_os[3] >= '4' && default_os[3] <= '9') | |
3c9030c1 | 1141 | ppc_cpu |= PPC_OPCODE_COMMON | PPC_OPCODE_32; |
252b5132 | 1142 | else if (strncmp (default_os, "aix3", 4) == 0) |
3c9030c1 | 1143 | ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32; |
252b5132 | 1144 | else if (strcmp (default_cpu, "rs6000") == 0) |
3c9030c1 | 1145 | ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32; |
0baf16f2 | 1146 | else if (strncmp (default_cpu, "powerpc", 7) == 0) |
b34976b6 AM |
1147 | { |
1148 | if (default_cpu[7] == '6' && default_cpu[8] == '4') | |
3c9030c1 | 1149 | ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64; |
b34976b6 | 1150 | else |
3c9030c1 | 1151 | ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32; |
b34976b6 | 1152 | } |
252b5132 | 1153 | else |
99a814a1 AM |
1154 | as_fatal (_("Unknown default cpu = %s, os = %s"), |
1155 | default_cpu, default_os); | |
252b5132 RH |
1156 | } |
1157 | } | |
1158 | ||
1159 | /* Figure out the BFD architecture to use. */ | |
1160 | ||
1161 | enum bfd_architecture | |
1162 | ppc_arch () | |
1163 | { | |
1164 | const char *default_cpu = TARGET_CPU; | |
1165 | ppc_set_cpu (); | |
1166 | ||
1167 | if ((ppc_cpu & PPC_OPCODE_PPC) != 0) | |
1168 | return bfd_arch_powerpc; | |
1169 | else if ((ppc_cpu & PPC_OPCODE_POWER) != 0) | |
1170 | return bfd_arch_rs6000; | |
1171 | else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0) | |
1172 | { | |
1173 | if (strcmp (default_cpu, "rs6000") == 0) | |
1174 | return bfd_arch_rs6000; | |
0baf16f2 | 1175 | else if (strncmp (default_cpu, "powerpc", 7) == 0) |
252b5132 RH |
1176 | return bfd_arch_powerpc; |
1177 | } | |
1178 | ||
1179 | as_fatal (_("Neither Power nor PowerPC opcodes were selected.")); | |
1180 | return bfd_arch_unknown; | |
1181 | } | |
1182 | ||
7f6d05e8 CP |
1183 | unsigned long |
1184 | ppc_mach () | |
1185 | { | |
2a98c3a6 AM |
1186 | if (ppc_obj64) |
1187 | return bfd_mach_ppc64; | |
1188 | else if (ppc_arch () == bfd_arch_rs6000) | |
1189 | return bfd_mach_rs6k; | |
1190 | else | |
1191 | return bfd_mach_ppc; | |
7f6d05e8 CP |
1192 | } |
1193 | ||
81d4177b | 1194 | extern char* |
99a814a1 | 1195 | ppc_target_format () |
7f6d05e8 CP |
1196 | { |
1197 | #ifdef OBJ_COFF | |
1198 | #ifdef TE_PE | |
99a814a1 | 1199 | return target_big_endian ? "pe-powerpc" : "pe-powerpcle"; |
7f6d05e8 | 1200 | #elif TE_POWERMAC |
0baf16f2 | 1201 | return "xcoff-powermac"; |
7f6d05e8 | 1202 | #else |
eb1e0e80 | 1203 | # ifdef TE_AIX5 |
2b3c4602 | 1204 | return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000"); |
eb1e0e80 | 1205 | # else |
2b3c4602 | 1206 | return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000"); |
eb1e0e80 | 1207 | # endif |
7f6d05e8 | 1208 | #endif |
7f6d05e8 CP |
1209 | #endif |
1210 | #ifdef OBJ_ELF | |
0baf16f2 | 1211 | return (target_big_endian |
2b3c4602 AM |
1212 | ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc") |
1213 | : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle")); | |
7f6d05e8 CP |
1214 | #endif |
1215 | } | |
1216 | ||
69c040df AM |
1217 | /* Insert opcodes and macros into hash tables. Called at startup and |
1218 | for .cpu pseudo. */ | |
252b5132 | 1219 | |
69c040df AM |
1220 | static void |
1221 | ppc_setup_opcodes (void) | |
252b5132 RH |
1222 | { |
1223 | register const struct powerpc_opcode *op; | |
1224 | const struct powerpc_opcode *op_end; | |
1225 | const struct powerpc_macro *macro; | |
1226 | const struct powerpc_macro *macro_end; | |
b34976b6 | 1227 | bfd_boolean dup_insn = FALSE; |
252b5132 | 1228 | |
69c040df AM |
1229 | if (ppc_hash != NULL) |
1230 | hash_die (ppc_hash); | |
1231 | if (ppc_macro_hash != NULL) | |
1232 | hash_die (ppc_macro_hash); | |
252b5132 RH |
1233 | |
1234 | /* Insert the opcodes into a hash table. */ | |
1235 | ppc_hash = hash_new (); | |
1236 | ||
1237 | op_end = powerpc_opcodes + powerpc_num_opcodes; | |
1238 | for (op = powerpc_opcodes; op < op_end; op++) | |
1239 | { | |
1240 | know ((op->opcode & op->mask) == op->opcode); | |
1241 | ||
2b3c4602 | 1242 | if ((op->flags & ppc_cpu & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) != 0 |
252b5132 | 1243 | && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0 |
2b3c4602 AM |
1244 | || ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) |
1245 | == (ppc_cpu & (PPC_OPCODE_32 | PPC_OPCODE_64))) | |
23e1d84c | 1246 | || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0) |
341026c1 NC |
1247 | /* Certain instructions (eg: extsw) do not exist in the |
1248 | 32-bit BookE instruction set, but they do exist in the | |
1249 | 64-bit BookE instruction set, and other PPC instruction | |
1250 | sets. Check to see if the opcode has the BOOKE64 flag set. | |
1251 | If it does make sure that the target CPU is not the BookE32. */ | |
1252 | && ((op->flags & PPC_OPCODE_BOOKE64) == 0 | |
1253 | || (ppc_cpu & PPC_OPCODE_BOOKE64) == PPC_OPCODE_BOOKE64 | |
1254 | || (ppc_cpu & PPC_OPCODE_BOOKE) == 0) | |
23e1d84c AM |
1255 | && ((op->flags & (PPC_OPCODE_POWER4 | PPC_OPCODE_NOPOWER4)) == 0 |
1256 | || ((op->flags & PPC_OPCODE_POWER4) | |
1257 | == (ppc_cpu & PPC_OPCODE_POWER4)))) | |
252b5132 RH |
1258 | { |
1259 | const char *retval; | |
1260 | ||
1261 | retval = hash_insert (ppc_hash, op->name, (PTR) op); | |
69c040df | 1262 | if (retval != NULL) |
252b5132 | 1263 | { |
99a814a1 | 1264 | /* Ignore Power duplicates for -m601. */ |
252b5132 RH |
1265 | if ((ppc_cpu & PPC_OPCODE_601) != 0 |
1266 | && (op->flags & PPC_OPCODE_POWER) != 0) | |
1267 | continue; | |
1268 | ||
99a814a1 AM |
1269 | as_bad (_("Internal assembler error for instruction %s"), |
1270 | op->name); | |
b34976b6 | 1271 | dup_insn = TRUE; |
252b5132 RH |
1272 | } |
1273 | } | |
1274 | } | |
1275 | ||
3c9030c1 AM |
1276 | if ((ppc_cpu & PPC_OPCODE_ANY) != 0) |
1277 | for (op = powerpc_opcodes; op < op_end; op++) | |
1278 | hash_insert (ppc_hash, op->name, (PTR) op); | |
1279 | ||
252b5132 RH |
1280 | /* Insert the macros into a hash table. */ |
1281 | ppc_macro_hash = hash_new (); | |
1282 | ||
1283 | macro_end = powerpc_macros + powerpc_num_macros; | |
1284 | for (macro = powerpc_macros; macro < macro_end; macro++) | |
1285 | { | |
1286 | if ((macro->flags & ppc_cpu) != 0) | |
1287 | { | |
1288 | const char *retval; | |
1289 | ||
1290 | retval = hash_insert (ppc_macro_hash, macro->name, (PTR) macro); | |
1291 | if (retval != (const char *) NULL) | |
1292 | { | |
1293 | as_bad (_("Internal assembler error for macro %s"), macro->name); | |
b34976b6 | 1294 | dup_insn = TRUE; |
252b5132 RH |
1295 | } |
1296 | } | |
1297 | } | |
1298 | ||
1299 | if (dup_insn) | |
1300 | abort (); | |
69c040df AM |
1301 | } |
1302 | ||
1303 | /* This function is called when the assembler starts up. It is called | |
1304 | after the options have been parsed and the output file has been | |
1305 | opened. */ | |
1306 | ||
1307 | void | |
1308 | md_begin () | |
1309 | { | |
1310 | ppc_set_cpu (); | |
1311 | ||
1312 | ppc_cie_data_alignment = ppc_obj64 ? -8 : -4; | |
1313 | ||
1314 | #ifdef OBJ_ELF | |
1315 | /* Set the ELF flags if desired. */ | |
1316 | if (ppc_flags && !msolaris) | |
1317 | bfd_set_private_flags (stdoutput, ppc_flags); | |
1318 | #endif | |
1319 | ||
1320 | ppc_setup_opcodes (); | |
252b5132 | 1321 | |
67c1ffbe | 1322 | /* Tell the main code what the endianness is if it is not overridden |
99a814a1 | 1323 | by the user. */ |
252b5132 RH |
1324 | if (!set_target_endian) |
1325 | { | |
1326 | set_target_endian = 1; | |
1327 | target_big_endian = PPC_BIG_ENDIAN; | |
1328 | } | |
1329 | ||
1330 | #ifdef OBJ_XCOFF | |
1331 | ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG); | |
1332 | ||
1333 | /* Create dummy symbols to serve as initial csects. This forces the | |
1334 | text csects to precede the data csects. These symbols will not | |
1335 | be output. */ | |
1336 | ppc_text_csects = symbol_make ("dummy\001"); | |
809ffe0d | 1337 | symbol_get_tc (ppc_text_csects)->within = ppc_text_csects; |
252b5132 | 1338 | ppc_data_csects = symbol_make ("dummy\001"); |
809ffe0d | 1339 | symbol_get_tc (ppc_data_csects)->within = ppc_data_csects; |
252b5132 RH |
1340 | #endif |
1341 | ||
1342 | #ifdef TE_PE | |
1343 | ||
1344 | ppc_current_section = text_section; | |
81d4177b | 1345 | ppc_previous_section = 0; |
252b5132 RH |
1346 | |
1347 | #endif | |
1348 | } | |
1349 | ||
6a0c61b7 EZ |
1350 | void |
1351 | ppc_cleanup () | |
1352 | { | |
dc1d03fc | 1353 | #ifdef OBJ_ELF |
6a0c61b7 EZ |
1354 | if (ppc_apuinfo_list == NULL) |
1355 | return; | |
1356 | ||
1357 | /* Ok, so write the section info out. We have this layout: | |
1358 | ||
1359 | byte data what | |
1360 | ---- ---- ---- | |
1361 | 0 8 length of "APUinfo\0" | |
1362 | 4 (n*4) number of APU's (4 bytes each) | |
1363 | 8 2 note type 2 | |
1364 | 12 "APUinfo\0" name | |
1365 | 20 APU#1 first APU's info | |
1366 | 24 APU#2 second APU's info | |
1367 | ... ... | |
1368 | */ | |
1369 | { | |
1370 | char *p; | |
1371 | asection *seg = now_seg; | |
1372 | subsegT subseg = now_subseg; | |
1373 | asection *apuinfo_secp = (asection *) NULL; | |
49181a6a | 1374 | unsigned int i; |
6a0c61b7 EZ |
1375 | |
1376 | /* Create the .PPC.EMB.apuinfo section. */ | |
1377 | apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0); | |
1378 | bfd_set_section_flags (stdoutput, | |
1379 | apuinfo_secp, | |
e1a9cb8e | 1380 | SEC_HAS_CONTENTS | SEC_READONLY); |
6a0c61b7 EZ |
1381 | |
1382 | p = frag_more (4); | |
1383 | md_number_to_chars (p, (valueT) 8, 4); | |
1384 | ||
1385 | p = frag_more (4); | |
e98d298c | 1386 | md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4); |
6a0c61b7 EZ |
1387 | |
1388 | p = frag_more (4); | |
1389 | md_number_to_chars (p, (valueT) 2, 4); | |
1390 | ||
1391 | p = frag_more (8); | |
1392 | strcpy (p, "APUinfo"); | |
1393 | ||
1394 | for (i = 0; i < ppc_apuinfo_num; i++) | |
1395 | { | |
b34976b6 AM |
1396 | p = frag_more (4); |
1397 | md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4); | |
6a0c61b7 EZ |
1398 | } |
1399 | ||
1400 | frag_align (2, 0, 0); | |
1401 | ||
1402 | /* We probably can't restore the current segment, for there likely | |
1403 | isn't one yet... */ | |
1404 | if (seg && subseg) | |
1405 | subseg_set (seg, subseg); | |
1406 | } | |
dc1d03fc | 1407 | #endif |
6a0c61b7 EZ |
1408 | } |
1409 | ||
252b5132 RH |
1410 | /* Insert an operand value into an instruction. */ |
1411 | ||
1412 | static unsigned long | |
1413 | ppc_insert_operand (insn, operand, val, file, line) | |
1414 | unsigned long insn; | |
1415 | const struct powerpc_operand *operand; | |
1416 | offsetT val; | |
1417 | char *file; | |
1418 | unsigned int line; | |
1419 | { | |
1420 | if (operand->bits != 32) | |
1421 | { | |
1422 | long min, max; | |
1423 | offsetT test; | |
1424 | ||
1425 | if ((operand->flags & PPC_OPERAND_SIGNED) != 0) | |
1426 | { | |
d0e9a01c | 1427 | if ((operand->flags & PPC_OPERAND_SIGNOPT) != 0) |
252b5132 RH |
1428 | max = (1 << operand->bits) - 1; |
1429 | else | |
1430 | max = (1 << (operand->bits - 1)) - 1; | |
1431 | min = - (1 << (operand->bits - 1)); | |
1432 | ||
2b3c4602 | 1433 | if (!ppc_obj64) |
252b5132 RH |
1434 | { |
1435 | /* Some people write 32 bit hex constants with the sign | |
1436 | extension done by hand. This shouldn't really be | |
1437 | valid, but, to permit this code to assemble on a 64 | |
1438 | bit host, we sign extend the 32 bit value. */ | |
1439 | if (val > 0 | |
92161534 ILT |
1440 | && (val & (offsetT) 0x80000000) != 0 |
1441 | && (val & (offsetT) 0xffffffff) == val) | |
252b5132 RH |
1442 | { |
1443 | val -= 0x80000000; | |
1444 | val -= 0x80000000; | |
1445 | } | |
1446 | } | |
1447 | } | |
1448 | else | |
1449 | { | |
1450 | max = (1 << operand->bits) - 1; | |
1451 | min = 0; | |
1452 | } | |
1453 | ||
1454 | if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0) | |
1455 | test = - val; | |
1456 | else | |
1457 | test = val; | |
1458 | ||
1459 | if (test < (offsetT) min || test > (offsetT) max) | |
1460 | { | |
1461 | const char *err = | |
1462 | _("operand out of range (%s not between %ld and %ld)"); | |
1463 | char buf[100]; | |
1464 | ||
1465 | sprint_value (buf, test); | |
0baf16f2 | 1466 | as_bad_where (file, line, err, buf, min, max); |
252b5132 RH |
1467 | } |
1468 | } | |
1469 | ||
1470 | if (operand->insert) | |
1471 | { | |
1472 | const char *errmsg; | |
1473 | ||
1474 | errmsg = NULL; | |
2b3c4602 | 1475 | insn = (*operand->insert) (insn, (long) val, ppc_cpu, &errmsg); |
252b5132 | 1476 | if (errmsg != (const char *) NULL) |
0baf16f2 | 1477 | as_bad_where (file, line, errmsg); |
252b5132 RH |
1478 | } |
1479 | else | |
1480 | insn |= (((long) val & ((1 << operand->bits) - 1)) | |
1481 | << operand->shift); | |
1482 | ||
1483 | return insn; | |
1484 | } | |
1485 | ||
1486 | \f | |
1487 | #ifdef OBJ_ELF | |
1488 | /* Parse @got, etc. and return the desired relocation. */ | |
1489 | static bfd_reloc_code_real_type | |
1490 | ppc_elf_suffix (str_p, exp_p) | |
1491 | char **str_p; | |
1492 | expressionS *exp_p; | |
1493 | { | |
1494 | struct map_bfd { | |
1495 | char *string; | |
b7d7dc63 AM |
1496 | unsigned int length : 8; |
1497 | unsigned int valid32 : 1; | |
1498 | unsigned int valid64 : 1; | |
1499 | unsigned int reloc; | |
252b5132 RH |
1500 | }; |
1501 | ||
1502 | char ident[20]; | |
1503 | char *str = *str_p; | |
1504 | char *str2; | |
1505 | int ch; | |
1506 | int len; | |
15c1449b | 1507 | const struct map_bfd *ptr; |
252b5132 | 1508 | |
b7d7dc63 AM |
1509 | #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc } |
1510 | #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc } | |
1511 | #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc } | |
252b5132 | 1512 | |
15c1449b | 1513 | static const struct map_bfd mapping[] = { |
b7d7dc63 AM |
1514 | MAP ("l", BFD_RELOC_LO16), |
1515 | MAP ("h", BFD_RELOC_HI16), | |
1516 | MAP ("ha", BFD_RELOC_HI16_S), | |
1517 | MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN), | |
1518 | MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN), | |
1519 | MAP ("got", BFD_RELOC_16_GOTOFF), | |
1520 | MAP ("got@l", BFD_RELOC_LO16_GOTOFF), | |
1521 | MAP ("got@h", BFD_RELOC_HI16_GOTOFF), | |
1522 | MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF), | |
1523 | MAP ("plt@l", BFD_RELOC_LO16_PLTOFF), | |
1524 | MAP ("plt@h", BFD_RELOC_HI16_PLTOFF), | |
1525 | MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF), | |
1526 | MAP ("copy", BFD_RELOC_PPC_COPY), | |
1527 | MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT), | |
1528 | MAP ("sectoff", BFD_RELOC_16_BASEREL), | |
1529 | MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL), | |
1530 | MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL), | |
1531 | MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL), | |
1532 | MAP ("tls", BFD_RELOC_PPC_TLS), | |
1533 | MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD), | |
1534 | MAP ("dtprel", BFD_RELOC_PPC_DTPREL), | |
1535 | MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO), | |
1536 | MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI), | |
1537 | MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA), | |
1538 | MAP ("tprel", BFD_RELOC_PPC_TPREL), | |
1539 | MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO), | |
1540 | MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI), | |
1541 | MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA), | |
1542 | MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16), | |
1543 | MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO), | |
1544 | MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI), | |
1545 | MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA), | |
1546 | MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16), | |
1547 | MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO), | |
1548 | MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI), | |
1549 | MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA), | |
1550 | MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16), | |
1551 | MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO), | |
1552 | MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI), | |
1553 | MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA), | |
1554 | MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16), | |
1555 | MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO), | |
1556 | MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI), | |
1557 | MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA), | |
1558 | MAP32 ("fixup", BFD_RELOC_CTOR), | |
1559 | MAP32 ("plt", BFD_RELOC_24_PLT_PCREL), | |
1560 | MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL), | |
1561 | MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC), | |
1562 | MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC), | |
1563 | MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL), | |
1564 | MAP32 ("sdarel", BFD_RELOC_GPREL16), | |
1565 | MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32), | |
1566 | MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16), | |
1567 | MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO), | |
1568 | MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI), | |
1569 | MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA), | |
1570 | MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16), | |
1571 | MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL), | |
1572 | MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16), | |
1573 | MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21), | |
1574 | MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF), | |
1575 | MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16), | |
1576 | MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO), | |
1577 | MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI), | |
1578 | MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA), | |
1579 | MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD), | |
1580 | MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA), | |
1581 | MAP32 ("xgot", BFD_RELOC_PPC_TOC16), | |
1582 | MAP64 ("higher", BFD_RELOC_PPC64_HIGHER), | |
1583 | MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S), | |
1584 | MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST), | |
1585 | MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S), | |
1586 | MAP64 ("tocbase", BFD_RELOC_PPC64_TOC), | |
1587 | MAP64 ("toc", BFD_RELOC_PPC_TOC16), | |
1588 | MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO), | |
1589 | MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI), | |
1590 | MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA), | |
1591 | MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER), | |
1592 | MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA), | |
1593 | MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST), | |
1594 | MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA), | |
1595 | MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER), | |
1596 | MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA), | |
1597 | MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST), | |
1598 | MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA), | |
1599 | { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED } | |
252b5132 RH |
1600 | }; |
1601 | ||
1602 | if (*str++ != '@') | |
1603 | return BFD_RELOC_UNUSED; | |
1604 | ||
1605 | for (ch = *str, str2 = ident; | |
1606 | (str2 < ident + sizeof (ident) - 1 | |
3882b010 | 1607 | && (ISALNUM (ch) || ch == '@')); |
252b5132 RH |
1608 | ch = *++str) |
1609 | { | |
3882b010 | 1610 | *str2++ = TOLOWER (ch); |
252b5132 RH |
1611 | } |
1612 | ||
1613 | *str2 = '\0'; | |
1614 | len = str2 - ident; | |
1615 | ||
1616 | ch = ident[0]; | |
1617 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
1618 | if (ch == ptr->string[0] | |
1619 | && len == ptr->length | |
b7d7dc63 AM |
1620 | && memcmp (ident, ptr->string, ptr->length) == 0 |
1621 | && (ppc_obj64 ? ptr->valid64 : ptr->valid32)) | |
252b5132 | 1622 | { |
15c1449b AM |
1623 | int reloc = ptr->reloc; |
1624 | ||
cdba85ec | 1625 | if (!ppc_obj64) |
5f6db75a AM |
1626 | if (exp_p->X_add_number != 0 |
1627 | && (reloc == (int) BFD_RELOC_16_GOTOFF | |
1628 | || reloc == (int) BFD_RELOC_LO16_GOTOFF | |
1629 | || reloc == (int) BFD_RELOC_HI16_GOTOFF | |
1630 | || reloc == (int) BFD_RELOC_HI16_S_GOTOFF)) | |
1631 | as_warn (_("identifier+constant@got means identifier@got+constant")); | |
1632 | ||
1633 | /* Now check for identifier@suffix+constant. */ | |
1634 | if (*str == '-' || *str == '+') | |
252b5132 | 1635 | { |
5f6db75a AM |
1636 | char *orig_line = input_line_pointer; |
1637 | expressionS new_exp; | |
1638 | ||
1639 | input_line_pointer = str; | |
1640 | expression (&new_exp); | |
1641 | if (new_exp.X_op == O_constant) | |
252b5132 | 1642 | { |
5f6db75a AM |
1643 | exp_p->X_add_number += new_exp.X_add_number; |
1644 | str = input_line_pointer; | |
252b5132 | 1645 | } |
5f6db75a AM |
1646 | |
1647 | if (&input_line_pointer != str_p) | |
1648 | input_line_pointer = orig_line; | |
252b5132 | 1649 | } |
252b5132 | 1650 | *str_p = str; |
0baf16f2 | 1651 | |
2b3c4602 | 1652 | if (reloc == (int) BFD_RELOC_PPC64_TOC |
9f2b53d7 AM |
1653 | && exp_p->X_op == O_symbol |
1654 | && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0) | |
0baf16f2 | 1655 | { |
9f2b53d7 AM |
1656 | /* Change the symbol so that the dummy .TOC. symbol can be |
1657 | omitted from the object file. */ | |
0baf16f2 AM |
1658 | exp_p->X_add_symbol = &abs_symbol; |
1659 | } | |
1660 | ||
15c1449b | 1661 | return (bfd_reloc_code_real_type) reloc; |
252b5132 RH |
1662 | } |
1663 | ||
1664 | return BFD_RELOC_UNUSED; | |
1665 | } | |
1666 | ||
99a814a1 AM |
1667 | /* Like normal .long/.short/.word, except support @got, etc. |
1668 | Clobbers input_line_pointer, checks end-of-line. */ | |
252b5132 RH |
1669 | static void |
1670 | ppc_elf_cons (nbytes) | |
0baf16f2 | 1671 | register int nbytes; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */ |
252b5132 RH |
1672 | { |
1673 | expressionS exp; | |
1674 | bfd_reloc_code_real_type reloc; | |
1675 | ||
1676 | if (is_it_end_of_statement ()) | |
1677 | { | |
1678 | demand_empty_rest_of_line (); | |
1679 | return; | |
1680 | } | |
1681 | ||
1682 | do | |
1683 | { | |
1684 | expression (&exp); | |
1685 | if (exp.X_op == O_symbol | |
1686 | && *input_line_pointer == '@' | |
99a814a1 AM |
1687 | && (reloc = ppc_elf_suffix (&input_line_pointer, |
1688 | &exp)) != BFD_RELOC_UNUSED) | |
252b5132 | 1689 | { |
99a814a1 AM |
1690 | reloc_howto_type *reloc_howto; |
1691 | int size; | |
1692 | ||
1693 | reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc); | |
1694 | size = bfd_get_reloc_size (reloc_howto); | |
252b5132 RH |
1695 | |
1696 | if (size > nbytes) | |
0baf16f2 AM |
1697 | { |
1698 | as_bad (_("%s relocations do not fit in %d bytes\n"), | |
1699 | reloc_howto->name, nbytes); | |
1700 | } | |
252b5132 RH |
1701 | else |
1702 | { | |
0baf16f2 AM |
1703 | char *p; |
1704 | int offset; | |
252b5132 | 1705 | |
0baf16f2 AM |
1706 | p = frag_more (nbytes); |
1707 | offset = 0; | |
1708 | if (target_big_endian) | |
1709 | offset = nbytes - size; | |
99a814a1 AM |
1710 | fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size, |
1711 | &exp, 0, reloc); | |
252b5132 RH |
1712 | } |
1713 | } | |
1714 | else | |
1715 | emit_expr (&exp, (unsigned int) nbytes); | |
1716 | } | |
1717 | while (*input_line_pointer++ == ','); | |
1718 | ||
99a814a1 AM |
1719 | /* Put terminator back into stream. */ |
1720 | input_line_pointer--; | |
252b5132 RH |
1721 | demand_empty_rest_of_line (); |
1722 | } | |
1723 | ||
1724 | /* Solaris pseduo op to change to the .rodata section. */ | |
1725 | static void | |
1726 | ppc_elf_rdata (xxx) | |
1727 | int xxx; | |
1728 | { | |
1729 | char *save_line = input_line_pointer; | |
1730 | static char section[] = ".rodata\n"; | |
1731 | ||
99a814a1 | 1732 | /* Just pretend this is .section .rodata */ |
252b5132 RH |
1733 | input_line_pointer = section; |
1734 | obj_elf_section (xxx); | |
1735 | ||
1736 | input_line_pointer = save_line; | |
1737 | } | |
1738 | ||
99a814a1 | 1739 | /* Pseudo op to make file scope bss items. */ |
252b5132 | 1740 | static void |
99a814a1 | 1741 | ppc_elf_lcomm (xxx) |
92161534 | 1742 | int xxx ATTRIBUTE_UNUSED; |
252b5132 RH |
1743 | { |
1744 | register char *name; | |
1745 | register char c; | |
1746 | register char *p; | |
1747 | offsetT size; | |
1748 | register symbolS *symbolP; | |
1749 | offsetT align; | |
1750 | segT old_sec; | |
1751 | int old_subsec; | |
1752 | char *pfrag; | |
1753 | int align2; | |
1754 | ||
1755 | name = input_line_pointer; | |
1756 | c = get_symbol_end (); | |
1757 | ||
99a814a1 | 1758 | /* just after name is now '\0'. */ |
252b5132 RH |
1759 | p = input_line_pointer; |
1760 | *p = c; | |
1761 | SKIP_WHITESPACE (); | |
1762 | if (*input_line_pointer != ',') | |
1763 | { | |
1764 | as_bad (_("Expected comma after symbol-name: rest of line ignored.")); | |
1765 | ignore_rest_of_line (); | |
1766 | return; | |
1767 | } | |
1768 | ||
1769 | input_line_pointer++; /* skip ',' */ | |
1770 | if ((size = get_absolute_expression ()) < 0) | |
1771 | { | |
1772 | as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size); | |
1773 | ignore_rest_of_line (); | |
1774 | return; | |
1775 | } | |
1776 | ||
1777 | /* The third argument to .lcomm is the alignment. */ | |
1778 | if (*input_line_pointer != ',') | |
1779 | align = 8; | |
1780 | else | |
1781 | { | |
1782 | ++input_line_pointer; | |
1783 | align = get_absolute_expression (); | |
1784 | if (align <= 0) | |
1785 | { | |
1786 | as_warn (_("ignoring bad alignment")); | |
1787 | align = 8; | |
1788 | } | |
1789 | } | |
1790 | ||
1791 | *p = 0; | |
1792 | symbolP = symbol_find_or_make (name); | |
1793 | *p = c; | |
1794 | ||
1795 | if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) | |
1796 | { | |
1797 | as_bad (_("Ignoring attempt to re-define symbol `%s'."), | |
1798 | S_GET_NAME (symbolP)); | |
1799 | ignore_rest_of_line (); | |
1800 | return; | |
1801 | } | |
1802 | ||
1803 | if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size) | |
1804 | { | |
1805 | as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."), | |
1806 | S_GET_NAME (symbolP), | |
1807 | (long) S_GET_VALUE (symbolP), | |
1808 | (long) size); | |
1809 | ||
1810 | ignore_rest_of_line (); | |
1811 | return; | |
1812 | } | |
1813 | ||
99a814a1 | 1814 | /* Allocate_bss. */ |
252b5132 RH |
1815 | old_sec = now_seg; |
1816 | old_subsec = now_subseg; | |
1817 | if (align) | |
1818 | { | |
99a814a1 | 1819 | /* Convert to a power of 2 alignment. */ |
252b5132 RH |
1820 | for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2); |
1821 | if (align != 1) | |
1822 | { | |
1823 | as_bad (_("Common alignment not a power of 2")); | |
1824 | ignore_rest_of_line (); | |
1825 | return; | |
1826 | } | |
1827 | } | |
1828 | else | |
1829 | align2 = 0; | |
1830 | ||
1831 | record_alignment (bss_section, align2); | |
1832 | subseg_set (bss_section, 0); | |
1833 | if (align2) | |
1834 | frag_align (align2, 0, 0); | |
1835 | if (S_GET_SEGMENT (symbolP) == bss_section) | |
49309057 ILT |
1836 | symbol_get_frag (symbolP)->fr_symbol = 0; |
1837 | symbol_set_frag (symbolP, frag_now); | |
252b5132 RH |
1838 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size, |
1839 | (char *) 0); | |
1840 | *pfrag = 0; | |
1841 | S_SET_SIZE (symbolP, size); | |
1842 | S_SET_SEGMENT (symbolP, bss_section); | |
1843 | subseg_set (old_sec, old_subsec); | |
1844 | demand_empty_rest_of_line (); | |
1845 | } | |
1846 | ||
1847 | /* Validate any relocations emitted for -mrelocatable, possibly adding | |
1848 | fixups for word relocations in writable segments, so we can adjust | |
1849 | them at runtime. */ | |
1850 | static void | |
1851 | ppc_elf_validate_fix (fixp, seg) | |
1852 | fixS *fixp; | |
1853 | segT seg; | |
1854 | { | |
1855 | if (fixp->fx_done || fixp->fx_pcrel) | |
1856 | return; | |
1857 | ||
1858 | switch (shlib) | |
1859 | { | |
1860 | case SHLIB_NONE: | |
1861 | case SHLIB_PIC: | |
1862 | return; | |
1863 | ||
5d6f4f16 | 1864 | case SHLIB_MRELOCATABLE: |
252b5132 RH |
1865 | if (fixp->fx_r_type <= BFD_RELOC_UNUSED |
1866 | && fixp->fx_r_type != BFD_RELOC_16_GOTOFF | |
1867 | && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF | |
1868 | && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF | |
1869 | && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF | |
1cfc59d5 | 1870 | && fixp->fx_r_type != BFD_RELOC_16_BASEREL |
252b5132 RH |
1871 | && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL |
1872 | && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL | |
1873 | && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL | |
e138127a | 1874 | && (seg->flags & SEC_LOAD) != 0 |
252b5132 RH |
1875 | && strcmp (segment_name (seg), ".got2") != 0 |
1876 | && strcmp (segment_name (seg), ".dtors") != 0 | |
1877 | && strcmp (segment_name (seg), ".ctors") != 0 | |
1878 | && strcmp (segment_name (seg), ".fixup") != 0 | |
252b5132 RH |
1879 | && strcmp (segment_name (seg), ".gcc_except_table") != 0 |
1880 | && strcmp (segment_name (seg), ".eh_frame") != 0 | |
1881 | && strcmp (segment_name (seg), ".ex_shared") != 0) | |
1882 | { | |
1883 | if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0 | |
1884 | || fixp->fx_r_type != BFD_RELOC_CTOR) | |
1885 | { | |
1886 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1887 | _("Relocation cannot be done when using -mrelocatable")); | |
1888 | } | |
1889 | } | |
1890 | return; | |
1891 | } | |
1892 | } | |
0baf16f2 | 1893 | |
7e8d4ab4 AM |
1894 | /* Prevent elf_frob_file_before_adjust removing a weak undefined |
1895 | function descriptor sym if the corresponding code sym is used. */ | |
1896 | ||
1897 | void | |
1898 | ppc_frob_file_before_adjust () | |
0baf16f2 | 1899 | { |
7e8d4ab4 | 1900 | symbolS *symp; |
0baf16f2 | 1901 | |
7e8d4ab4 AM |
1902 | if (!ppc_obj64) |
1903 | return; | |
1904 | ||
1905 | for (symp = symbol_rootP; symp; symp = symbol_next (symp)) | |
0baf16f2 | 1906 | { |
7e8d4ab4 AM |
1907 | const char *name; |
1908 | char *dotname; | |
1909 | symbolS *dotsym; | |
1910 | size_t len; | |
1911 | ||
1912 | name = S_GET_NAME (symp); | |
1913 | if (name[0] == '.') | |
1914 | continue; | |
1915 | ||
1916 | if (! S_IS_WEAK (symp) | |
1917 | || S_IS_DEFINED (symp)) | |
1918 | continue; | |
1919 | ||
1920 | len = strlen (name) + 1; | |
1921 | dotname = xmalloc (len + 1); | |
1922 | dotname[0] = '.'; | |
1923 | memcpy (dotname + 1, name, len); | |
1924 | dotsym = symbol_find (dotname); | |
1925 | free (dotname); | |
1926 | if (dotsym != NULL && (symbol_used_p (dotsym) | |
1927 | || symbol_used_in_reloc_p (dotsym))) | |
1928 | { | |
1929 | symbol_mark_used (symp); | |
1930 | } | |
0baf16f2 AM |
1931 | } |
1932 | ||
7e8d4ab4 AM |
1933 | /* Don't emit .TOC. symbol. */ |
1934 | symp = symbol_find (".TOC."); | |
1935 | if (symp != NULL) | |
1936 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); | |
0baf16f2 | 1937 | } |
252b5132 RH |
1938 | #endif /* OBJ_ELF */ |
1939 | \f | |
1940 | #ifdef TE_PE | |
1941 | ||
1942 | /* | |
99a814a1 | 1943 | * Summary of parse_toc_entry. |
252b5132 RH |
1944 | * |
1945 | * in: Input_line_pointer points to the '[' in one of: | |
1946 | * | |
1947 | * [toc] [tocv] [toc32] [toc64] | |
1948 | * | |
1949 | * Anything else is an error of one kind or another. | |
1950 | * | |
81d4177b | 1951 | * out: |
252b5132 RH |
1952 | * return value: success or failure |
1953 | * toc_kind: kind of toc reference | |
1954 | * input_line_pointer: | |
1955 | * success: first char after the ']' | |
1956 | * failure: unchanged | |
1957 | * | |
1958 | * settings: | |
1959 | * | |
1960 | * [toc] - rv == success, toc_kind = default_toc | |
1961 | * [tocv] - rv == success, toc_kind = data_in_toc | |
1962 | * [toc32] - rv == success, toc_kind = must_be_32 | |
1963 | * [toc64] - rv == success, toc_kind = must_be_64 | |
1964 | * | |
1965 | */ | |
1966 | ||
81d4177b KH |
1967 | enum toc_size_qualifier |
1968 | { | |
252b5132 RH |
1969 | default_toc, /* The toc cell constructed should be the system default size */ |
1970 | data_in_toc, /* This is a direct reference to a toc cell */ | |
1971 | must_be_32, /* The toc cell constructed must be 32 bits wide */ | |
1972 | must_be_64 /* The toc cell constructed must be 64 bits wide */ | |
1973 | }; | |
1974 | ||
1975 | static int | |
99a814a1 | 1976 | parse_toc_entry (toc_kind) |
252b5132 RH |
1977 | enum toc_size_qualifier *toc_kind; |
1978 | { | |
1979 | char *start; | |
1980 | char *toc_spec; | |
1981 | char c; | |
1982 | enum toc_size_qualifier t; | |
1983 | ||
99a814a1 | 1984 | /* Save the input_line_pointer. */ |
252b5132 RH |
1985 | start = input_line_pointer; |
1986 | ||
99a814a1 | 1987 | /* Skip over the '[' , and whitespace. */ |
252b5132 RH |
1988 | ++input_line_pointer; |
1989 | SKIP_WHITESPACE (); | |
81d4177b | 1990 | |
99a814a1 | 1991 | /* Find the spelling of the operand. */ |
252b5132 RH |
1992 | toc_spec = input_line_pointer; |
1993 | c = get_symbol_end (); | |
1994 | ||
99a814a1 | 1995 | if (strcmp (toc_spec, "toc") == 0) |
252b5132 RH |
1996 | { |
1997 | t = default_toc; | |
1998 | } | |
99a814a1 | 1999 | else if (strcmp (toc_spec, "tocv") == 0) |
252b5132 RH |
2000 | { |
2001 | t = data_in_toc; | |
2002 | } | |
99a814a1 | 2003 | else if (strcmp (toc_spec, "toc32") == 0) |
252b5132 RH |
2004 | { |
2005 | t = must_be_32; | |
2006 | } | |
99a814a1 | 2007 | else if (strcmp (toc_spec, "toc64") == 0) |
252b5132 RH |
2008 | { |
2009 | t = must_be_64; | |
2010 | } | |
2011 | else | |
2012 | { | |
2013 | as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec); | |
99a814a1 AM |
2014 | *input_line_pointer = c; |
2015 | input_line_pointer = start; | |
252b5132 RH |
2016 | return 0; |
2017 | } | |
2018 | ||
99a814a1 AM |
2019 | /* Now find the ']'. */ |
2020 | *input_line_pointer = c; | |
252b5132 | 2021 | |
81d4177b KH |
2022 | SKIP_WHITESPACE (); /* leading whitespace could be there. */ |
2023 | c = *input_line_pointer++; /* input_line_pointer->past char in c. */ | |
252b5132 RH |
2024 | |
2025 | if (c != ']') | |
2026 | { | |
2027 | as_bad (_("syntax error: expected `]', found `%c'"), c); | |
99a814a1 | 2028 | input_line_pointer = start; |
252b5132 RH |
2029 | return 0; |
2030 | } | |
2031 | ||
99a814a1 | 2032 | *toc_kind = t; |
252b5132 RH |
2033 | return 1; |
2034 | } | |
2035 | #endif | |
2036 | \f | |
2037 | ||
dc1d03fc | 2038 | #ifdef OBJ_ELF |
6a0c61b7 EZ |
2039 | #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff)) |
2040 | static void | |
dc1d03fc | 2041 | ppc_apuinfo_section_add (apu, version) |
6a0c61b7 EZ |
2042 | unsigned int apu, version; |
2043 | { | |
2044 | unsigned int i; | |
2045 | ||
2046 | /* Check we don't already exist. */ | |
2047 | for (i = 0; i < ppc_apuinfo_num; i++) | |
dc1d03fc | 2048 | if (ppc_apuinfo_list[i] == APUID (apu, version)) |
6a0c61b7 | 2049 | return; |
b34976b6 | 2050 | |
6a0c61b7 EZ |
2051 | if (ppc_apuinfo_num == ppc_apuinfo_num_alloc) |
2052 | { | |
2053 | if (ppc_apuinfo_num_alloc == 0) | |
2054 | { | |
2055 | ppc_apuinfo_num_alloc = 4; | |
2056 | ppc_apuinfo_list = (unsigned long *) | |
2057 | xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc); | |
2058 | } | |
2059 | else | |
2060 | { | |
2061 | ppc_apuinfo_num_alloc += 4; | |
2062 | ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list, | |
2063 | sizeof (unsigned long) * ppc_apuinfo_num_alloc); | |
2064 | } | |
2065 | } | |
dc1d03fc | 2066 | ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version); |
6a0c61b7 EZ |
2067 | } |
2068 | #undef APUID | |
dc1d03fc | 2069 | #endif |
6a0c61b7 EZ |
2070 | \f |
2071 | ||
252b5132 RH |
2072 | /* We need to keep a list of fixups. We can't simply generate them as |
2073 | we go, because that would require us to first create the frag, and | |
2074 | that would screw up references to ``.''. */ | |
2075 | ||
2076 | struct ppc_fixup | |
2077 | { | |
2078 | expressionS exp; | |
2079 | int opindex; | |
2080 | bfd_reloc_code_real_type reloc; | |
2081 | }; | |
2082 | ||
2083 | #define MAX_INSN_FIXUPS (5) | |
2084 | ||
2085 | /* This routine is called for each instruction to be assembled. */ | |
2086 | ||
2087 | void | |
2088 | md_assemble (str) | |
2089 | char *str; | |
2090 | { | |
2091 | char *s; | |
2092 | const struct powerpc_opcode *opcode; | |
2093 | unsigned long insn; | |
2094 | const unsigned char *opindex_ptr; | |
2095 | int skip_optional; | |
2096 | int need_paren; | |
2097 | int next_opindex; | |
2098 | struct ppc_fixup fixups[MAX_INSN_FIXUPS]; | |
2099 | int fc; | |
2100 | char *f; | |
2101 | int i; | |
2102 | #ifdef OBJ_ELF | |
2103 | bfd_reloc_code_real_type reloc; | |
2104 | #endif | |
2105 | ||
2106 | /* Get the opcode. */ | |
3882b010 | 2107 | for (s = str; *s != '\0' && ! ISSPACE (*s); s++) |
252b5132 RH |
2108 | ; |
2109 | if (*s != '\0') | |
2110 | *s++ = '\0'; | |
2111 | ||
2112 | /* Look up the opcode in the hash table. */ | |
2113 | opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str); | |
2114 | if (opcode == (const struct powerpc_opcode *) NULL) | |
2115 | { | |
2116 | const struct powerpc_macro *macro; | |
2117 | ||
2118 | macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str); | |
2119 | if (macro == (const struct powerpc_macro *) NULL) | |
2120 | as_bad (_("Unrecognized opcode: `%s'"), str); | |
2121 | else | |
2122 | ppc_macro (s, macro); | |
2123 | ||
2124 | return; | |
2125 | } | |
2126 | ||
2127 | insn = opcode->opcode; | |
2128 | ||
2129 | str = s; | |
3882b010 | 2130 | while (ISSPACE (*str)) |
252b5132 RH |
2131 | ++str; |
2132 | ||
2133 | /* PowerPC operands are just expressions. The only real issue is | |
2134 | that a few operand types are optional. All cases which might use | |
1f6c9eb0 ZW |
2135 | an optional operand separate the operands only with commas (in some |
2136 | cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never | |
2137 | have optional operands). Most instructions with optional operands | |
2138 | have only one. Those that have more than one optional operand can | |
2139 | take either all their operands or none. So, before we start seriously | |
2140 | parsing the operands, we check to see if we have optional operands, | |
2141 | and if we do, we count the number of commas to see which operands | |
2142 | have been omitted. */ | |
252b5132 RH |
2143 | skip_optional = 0; |
2144 | for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++) | |
2145 | { | |
2146 | const struct powerpc_operand *operand; | |
2147 | ||
2148 | operand = &powerpc_operands[*opindex_ptr]; | |
2149 | if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0) | |
2150 | { | |
2151 | unsigned int opcount; | |
7fe9cf6b NC |
2152 | unsigned int num_operands_expected; |
2153 | unsigned int i; | |
252b5132 RH |
2154 | |
2155 | /* There is an optional operand. Count the number of | |
2156 | commas in the input line. */ | |
2157 | if (*str == '\0') | |
2158 | opcount = 0; | |
2159 | else | |
2160 | { | |
2161 | opcount = 1; | |
2162 | s = str; | |
2163 | while ((s = strchr (s, ',')) != (char *) NULL) | |
2164 | { | |
2165 | ++opcount; | |
2166 | ++s; | |
2167 | } | |
2168 | } | |
2169 | ||
7fe9cf6b NC |
2170 | /* Compute the number of expected operands. |
2171 | Do not count fake operands. */ | |
2172 | for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++) | |
2173 | if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0) | |
2174 | ++ num_operands_expected; | |
2175 | ||
252b5132 RH |
2176 | /* If there are fewer operands in the line then are called |
2177 | for by the instruction, we want to skip the optional | |
1f6c9eb0 | 2178 | operands. */ |
7fe9cf6b | 2179 | if (opcount < num_operands_expected) |
252b5132 RH |
2180 | skip_optional = 1; |
2181 | ||
2182 | break; | |
2183 | } | |
2184 | } | |
2185 | ||
2186 | /* Gather the operands. */ | |
2187 | need_paren = 0; | |
2188 | next_opindex = 0; | |
2189 | fc = 0; | |
2190 | for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++) | |
2191 | { | |
2192 | const struct powerpc_operand *operand; | |
2193 | const char *errmsg; | |
2194 | char *hold; | |
2195 | expressionS ex; | |
2196 | char endc; | |
2197 | ||
2198 | if (next_opindex == 0) | |
2199 | operand = &powerpc_operands[*opindex_ptr]; | |
2200 | else | |
2201 | { | |
2202 | operand = &powerpc_operands[next_opindex]; | |
2203 | next_opindex = 0; | |
2204 | } | |
252b5132 RH |
2205 | errmsg = NULL; |
2206 | ||
2207 | /* If this is a fake operand, then we do not expect anything | |
2208 | from the input. */ | |
2209 | if ((operand->flags & PPC_OPERAND_FAKE) != 0) | |
2210 | { | |
2b3c4602 | 2211 | insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg); |
252b5132 RH |
2212 | if (errmsg != (const char *) NULL) |
2213 | as_bad (errmsg); | |
2214 | continue; | |
2215 | } | |
2216 | ||
2217 | /* If this is an optional operand, and we are skipping it, just | |
2218 | insert a zero. */ | |
2219 | if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0 | |
2220 | && skip_optional) | |
2221 | { | |
2222 | if (operand->insert) | |
2223 | { | |
2b3c4602 | 2224 | insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg); |
252b5132 RH |
2225 | if (errmsg != (const char *) NULL) |
2226 | as_bad (errmsg); | |
2227 | } | |
2228 | if ((operand->flags & PPC_OPERAND_NEXT) != 0) | |
2229 | next_opindex = *opindex_ptr + 1; | |
2230 | continue; | |
2231 | } | |
2232 | ||
2233 | /* Gather the operand. */ | |
2234 | hold = input_line_pointer; | |
2235 | input_line_pointer = str; | |
2236 | ||
2237 | #ifdef TE_PE | |
81d4177b | 2238 | if (*input_line_pointer == '[') |
252b5132 RH |
2239 | { |
2240 | /* We are expecting something like the second argument here: | |
99a814a1 AM |
2241 | * |
2242 | * lwz r4,[toc].GS.0.static_int(rtoc) | |
2243 | * ^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
2244 | * The argument following the `]' must be a symbol name, and the | |
2245 | * register must be the toc register: 'rtoc' or '2' | |
2246 | * | |
2247 | * The effect is to 0 as the displacement field | |
2248 | * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or | |
2249 | * the appropriate variation) reloc against it based on the symbol. | |
2250 | * The linker will build the toc, and insert the resolved toc offset. | |
2251 | * | |
2252 | * Note: | |
2253 | * o The size of the toc entry is currently assumed to be | |
2254 | * 32 bits. This should not be assumed to be a hard coded | |
2255 | * number. | |
2256 | * o In an effort to cope with a change from 32 to 64 bits, | |
2257 | * there are also toc entries that are specified to be | |
2258 | * either 32 or 64 bits: | |
2259 | * lwz r4,[toc32].GS.0.static_int(rtoc) | |
2260 | * lwz r4,[toc64].GS.0.static_int(rtoc) | |
2261 | * These demand toc entries of the specified size, and the | |
2262 | * instruction probably requires it. | |
2263 | */ | |
252b5132 RH |
2264 | |
2265 | int valid_toc; | |
2266 | enum toc_size_qualifier toc_kind; | |
2267 | bfd_reloc_code_real_type toc_reloc; | |
2268 | ||
99a814a1 AM |
2269 | /* Go parse off the [tocXX] part. */ |
2270 | valid_toc = parse_toc_entry (&toc_kind); | |
252b5132 | 2271 | |
81d4177b | 2272 | if (!valid_toc) |
252b5132 | 2273 | { |
99a814a1 AM |
2274 | /* Note: message has already been issued. |
2275 | FIXME: what sort of recovery should we do? | |
2276 | demand_rest_of_line (); return; ? */ | |
252b5132 RH |
2277 | } |
2278 | ||
99a814a1 AM |
2279 | /* Now get the symbol following the ']'. */ |
2280 | expression (&ex); | |
252b5132 RH |
2281 | |
2282 | switch (toc_kind) | |
2283 | { | |
2284 | case default_toc: | |
99a814a1 AM |
2285 | /* In this case, we may not have seen the symbol yet, |
2286 | since it is allowed to appear on a .extern or .globl | |
2287 | or just be a label in the .data section. */ | |
252b5132 RH |
2288 | toc_reloc = BFD_RELOC_PPC_TOC16; |
2289 | break; | |
2290 | case data_in_toc: | |
99a814a1 AM |
2291 | /* 1. The symbol must be defined and either in the toc |
2292 | section, or a global. | |
2293 | 2. The reloc generated must have the TOCDEFN flag set | |
2294 | in upper bit mess of the reloc type. | |
2295 | FIXME: It's a little confusing what the tocv | |
2296 | qualifier can be used for. At the very least, I've | |
2297 | seen three uses, only one of which I'm sure I can | |
2298 | explain. */ | |
81d4177b KH |
2299 | if (ex.X_op == O_symbol) |
2300 | { | |
252b5132 | 2301 | assert (ex.X_add_symbol != NULL); |
fed9b18a ILT |
2302 | if (symbol_get_bfdsym (ex.X_add_symbol)->section |
2303 | != tocdata_section) | |
252b5132 | 2304 | { |
99a814a1 | 2305 | as_bad (_("[tocv] symbol is not a toc symbol")); |
252b5132 RH |
2306 | } |
2307 | } | |
2308 | ||
2309 | toc_reloc = BFD_RELOC_PPC_TOC16; | |
2310 | break; | |
2311 | case must_be_32: | |
99a814a1 AM |
2312 | /* FIXME: these next two specifically specify 32/64 bit |
2313 | toc entries. We don't support them today. Is this | |
2314 | the right way to say that? */ | |
252b5132 RH |
2315 | toc_reloc = BFD_RELOC_UNUSED; |
2316 | as_bad (_("Unimplemented toc32 expression modifier")); | |
2317 | break; | |
2318 | case must_be_64: | |
99a814a1 | 2319 | /* FIXME: see above. */ |
252b5132 RH |
2320 | toc_reloc = BFD_RELOC_UNUSED; |
2321 | as_bad (_("Unimplemented toc64 expression modifier")); | |
2322 | break; | |
2323 | default: | |
bc805888 | 2324 | fprintf (stderr, |
99a814a1 AM |
2325 | _("Unexpected return value [%d] from parse_toc_entry!\n"), |
2326 | toc_kind); | |
bc805888 | 2327 | abort (); |
252b5132 RH |
2328 | break; |
2329 | } | |
2330 | ||
2331 | /* We need to generate a fixup for this expression. */ | |
2332 | if (fc >= MAX_INSN_FIXUPS) | |
2333 | as_fatal (_("too many fixups")); | |
2334 | ||
2335 | fixups[fc].reloc = toc_reloc; | |
2336 | fixups[fc].exp = ex; | |
2337 | fixups[fc].opindex = *opindex_ptr; | |
2338 | ++fc; | |
2339 | ||
99a814a1 AM |
2340 | /* Ok. We've set up the fixup for the instruction. Now make it |
2341 | look like the constant 0 was found here. */ | |
252b5132 RH |
2342 | ex.X_unsigned = 1; |
2343 | ex.X_op = O_constant; | |
2344 | ex.X_add_number = 0; | |
2345 | ex.X_add_symbol = NULL; | |
2346 | ex.X_op_symbol = NULL; | |
2347 | } | |
2348 | ||
2349 | else | |
2350 | #endif /* TE_PE */ | |
2351 | { | |
2352 | if (! register_name (&ex)) | |
2353 | { | |
2354 | if ((operand->flags & PPC_OPERAND_CR) != 0) | |
b34976b6 | 2355 | cr_operand = TRUE; |
252b5132 | 2356 | expression (&ex); |
b34976b6 | 2357 | cr_operand = FALSE; |
252b5132 RH |
2358 | } |
2359 | } | |
2360 | ||
2361 | str = input_line_pointer; | |
2362 | input_line_pointer = hold; | |
2363 | ||
2364 | if (ex.X_op == O_illegal) | |
2365 | as_bad (_("illegal operand")); | |
2366 | else if (ex.X_op == O_absent) | |
2367 | as_bad (_("missing operand")); | |
2368 | else if (ex.X_op == O_register) | |
2369 | { | |
2370 | insn = ppc_insert_operand (insn, operand, ex.X_add_number, | |
2371 | (char *) NULL, 0); | |
2372 | } | |
2373 | else if (ex.X_op == O_constant) | |
2374 | { | |
2375 | #ifdef OBJ_ELF | |
81d4177b | 2376 | /* Allow @HA, @L, @H on constants. */ |
252b5132 RH |
2377 | char *orig_str = str; |
2378 | ||
2379 | if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED) | |
2380 | switch (reloc) | |
2381 | { | |
2382 | default: | |
2383 | str = orig_str; | |
2384 | break; | |
2385 | ||
2386 | case BFD_RELOC_LO16: | |
2387 | /* X_unsigned is the default, so if the user has done | |
0baf16f2 AM |
2388 | something which cleared it, we always produce a |
2389 | signed value. */ | |
2390 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
252b5132 RH |
2391 | ex.X_add_number &= 0xffff; |
2392 | else | |
0baf16f2 | 2393 | ex.X_add_number = SEX16 (ex.X_add_number); |
252b5132 RH |
2394 | break; |
2395 | ||
2396 | case BFD_RELOC_HI16: | |
0baf16f2 AM |
2397 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) |
2398 | ex.X_add_number = PPC_HI (ex.X_add_number); | |
2399 | else | |
2400 | ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number)); | |
252b5132 RH |
2401 | break; |
2402 | ||
2403 | case BFD_RELOC_HI16_S: | |
0baf16f2 AM |
2404 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) |
2405 | ex.X_add_number = PPC_HA (ex.X_add_number); | |
2406 | else | |
2407 | ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number)); | |
2408 | break; | |
2409 | ||
0baf16f2 AM |
2410 | case BFD_RELOC_PPC64_HIGHER: |
2411 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2412 | ex.X_add_number = PPC_HIGHER (ex.X_add_number); | |
2413 | else | |
2414 | ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number)); | |
2415 | break; | |
2416 | ||
2417 | case BFD_RELOC_PPC64_HIGHER_S: | |
2418 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2419 | ex.X_add_number = PPC_HIGHERA (ex.X_add_number); | |
2420 | else | |
2421 | ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number)); | |
252b5132 | 2422 | break; |
0baf16f2 AM |
2423 | |
2424 | case BFD_RELOC_PPC64_HIGHEST: | |
2425 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2426 | ex.X_add_number = PPC_HIGHEST (ex.X_add_number); | |
2427 | else | |
2428 | ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number)); | |
2429 | break; | |
2430 | ||
2431 | case BFD_RELOC_PPC64_HIGHEST_S: | |
2432 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2433 | ex.X_add_number = PPC_HIGHESTA (ex.X_add_number); | |
2434 | else | |
2435 | ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number)); | |
2436 | break; | |
252b5132 | 2437 | } |
0baf16f2 | 2438 | #endif /* OBJ_ELF */ |
252b5132 RH |
2439 | insn = ppc_insert_operand (insn, operand, ex.X_add_number, |
2440 | (char *) NULL, 0); | |
2441 | } | |
2442 | #ifdef OBJ_ELF | |
2443 | else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED) | |
2444 | { | |
cdba85ec AM |
2445 | /* Some TLS tweaks. */ |
2446 | switch (reloc) | |
2447 | { | |
2448 | default: | |
2449 | break; | |
2450 | case BFD_RELOC_PPC_TLS: | |
2451 | insn = ppc_insert_operand (insn, operand, ppc_obj64 ? 13 : 2, | |
2452 | (char *) NULL, 0); | |
2453 | break; | |
2454 | /* We'll only use the 32 (or 64) bit form of these relocations | |
2455 | in constants. Instructions get the 16 bit form. */ | |
2456 | case BFD_RELOC_PPC_DTPREL: | |
2457 | reloc = BFD_RELOC_PPC_DTPREL16; | |
2458 | break; | |
2459 | case BFD_RELOC_PPC_TPREL: | |
2460 | reloc = BFD_RELOC_PPC_TPREL16; | |
2461 | break; | |
2462 | } | |
2463 | ||
99a814a1 AM |
2464 | /* For the absolute forms of branches, convert the PC |
2465 | relative form back into the absolute. */ | |
252b5132 RH |
2466 | if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0) |
2467 | { | |
2468 | switch (reloc) | |
2469 | { | |
2470 | case BFD_RELOC_PPC_B26: | |
2471 | reloc = BFD_RELOC_PPC_BA26; | |
2472 | break; | |
2473 | case BFD_RELOC_PPC_B16: | |
2474 | reloc = BFD_RELOC_PPC_BA16; | |
2475 | break; | |
2476 | case BFD_RELOC_PPC_B16_BRTAKEN: | |
2477 | reloc = BFD_RELOC_PPC_BA16_BRTAKEN; | |
2478 | break; | |
2479 | case BFD_RELOC_PPC_B16_BRNTAKEN: | |
2480 | reloc = BFD_RELOC_PPC_BA16_BRNTAKEN; | |
2481 | break; | |
2482 | default: | |
2483 | break; | |
2484 | } | |
2485 | } | |
2486 | ||
2b3c4602 | 2487 | if (ppc_obj64 |
adadcc0c | 2488 | && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0) |
0baf16f2 AM |
2489 | { |
2490 | switch (reloc) | |
2491 | { | |
2492 | case BFD_RELOC_16: | |
2493 | reloc = BFD_RELOC_PPC64_ADDR16_DS; | |
2494 | break; | |
2495 | case BFD_RELOC_LO16: | |
2496 | reloc = BFD_RELOC_PPC64_ADDR16_LO_DS; | |
2497 | break; | |
2498 | case BFD_RELOC_16_GOTOFF: | |
2499 | reloc = BFD_RELOC_PPC64_GOT16_DS; | |
2500 | break; | |
2501 | case BFD_RELOC_LO16_GOTOFF: | |
2502 | reloc = BFD_RELOC_PPC64_GOT16_LO_DS; | |
2503 | break; | |
2504 | case BFD_RELOC_LO16_PLTOFF: | |
2505 | reloc = BFD_RELOC_PPC64_PLT16_LO_DS; | |
2506 | break; | |
1cfc59d5 | 2507 | case BFD_RELOC_16_BASEREL: |
0baf16f2 AM |
2508 | reloc = BFD_RELOC_PPC64_SECTOFF_DS; |
2509 | break; | |
2510 | case BFD_RELOC_LO16_BASEREL: | |
2511 | reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS; | |
2512 | break; | |
2513 | case BFD_RELOC_PPC_TOC16: | |
2514 | reloc = BFD_RELOC_PPC64_TOC16_DS; | |
2515 | break; | |
2516 | case BFD_RELOC_PPC64_TOC16_LO: | |
2517 | reloc = BFD_RELOC_PPC64_TOC16_LO_DS; | |
2518 | break; | |
2519 | case BFD_RELOC_PPC64_PLTGOT16: | |
2520 | reloc = BFD_RELOC_PPC64_PLTGOT16_DS; | |
2521 | break; | |
2522 | case BFD_RELOC_PPC64_PLTGOT16_LO: | |
2523 | reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS; | |
2524 | break; | |
cdba85ec AM |
2525 | case BFD_RELOC_PPC_DTPREL16: |
2526 | reloc = BFD_RELOC_PPC64_DTPREL16_DS; | |
2527 | break; | |
2528 | case BFD_RELOC_PPC_DTPREL16_LO: | |
2529 | reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS; | |
2530 | break; | |
2531 | case BFD_RELOC_PPC_TPREL16: | |
2532 | reloc = BFD_RELOC_PPC64_TPREL16_DS; | |
2533 | break; | |
2534 | case BFD_RELOC_PPC_TPREL16_LO: | |
2535 | reloc = BFD_RELOC_PPC64_TPREL16_LO_DS; | |
2536 | break; | |
2537 | case BFD_RELOC_PPC_GOT_DTPREL16: | |
2538 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: | |
2539 | case BFD_RELOC_PPC_GOT_TPREL16: | |
2540 | case BFD_RELOC_PPC_GOT_TPREL16_LO: | |
2541 | break; | |
0baf16f2 AM |
2542 | default: |
2543 | as_bad (_("unsupported relocation for DS offset field")); | |
2544 | break; | |
2545 | } | |
2546 | } | |
2547 | ||
252b5132 RH |
2548 | /* We need to generate a fixup for this expression. */ |
2549 | if (fc >= MAX_INSN_FIXUPS) | |
2550 | as_fatal (_("too many fixups")); | |
2551 | fixups[fc].exp = ex; | |
2552 | fixups[fc].opindex = 0; | |
2553 | fixups[fc].reloc = reloc; | |
2554 | ++fc; | |
2555 | } | |
2556 | #endif /* OBJ_ELF */ | |
2557 | ||
2558 | else | |
2559 | { | |
2560 | /* We need to generate a fixup for this expression. */ | |
2561 | if (fc >= MAX_INSN_FIXUPS) | |
2562 | as_fatal (_("too many fixups")); | |
2563 | fixups[fc].exp = ex; | |
2564 | fixups[fc].opindex = *opindex_ptr; | |
2565 | fixups[fc].reloc = BFD_RELOC_UNUSED; | |
2566 | ++fc; | |
2567 | } | |
2568 | ||
2569 | if (need_paren) | |
2570 | { | |
2571 | endc = ')'; | |
2572 | need_paren = 0; | |
2573 | } | |
2574 | else if ((operand->flags & PPC_OPERAND_PARENS) != 0) | |
2575 | { | |
2576 | endc = '('; | |
2577 | need_paren = 1; | |
2578 | } | |
2579 | else | |
2580 | endc = ','; | |
2581 | ||
2582 | /* The call to expression should have advanced str past any | |
2583 | whitespace. */ | |
2584 | if (*str != endc | |
2585 | && (endc != ',' || *str != '\0')) | |
2586 | { | |
2587 | as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc); | |
2588 | break; | |
2589 | } | |
2590 | ||
2591 | if (*str != '\0') | |
2592 | ++str; | |
2593 | } | |
2594 | ||
3882b010 | 2595 | while (ISSPACE (*str)) |
252b5132 RH |
2596 | ++str; |
2597 | ||
2598 | if (*str != '\0') | |
2599 | as_bad (_("junk at end of line: `%s'"), str); | |
2600 | ||
dc1d03fc | 2601 | #ifdef OBJ_ELF |
6a0c61b7 EZ |
2602 | /* Do we need/want a APUinfo section? */ |
2603 | if (ppc_cpu & (PPC_OPCODE_SPE | |
2604 | | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | |
2605 | | PPC_OPCODE_BRLOCK | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | |
2606 | | PPC_OPCODE_RFMCI)) | |
2607 | { | |
2608 | /* These are all version "1". */ | |
2609 | if (opcode->flags & PPC_OPCODE_SPE) | |
b34976b6 | 2610 | ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1); |
6a0c61b7 | 2611 | if (opcode->flags & PPC_OPCODE_ISEL) |
b34976b6 | 2612 | ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1); |
6a0c61b7 | 2613 | if (opcode->flags & PPC_OPCODE_EFS) |
b34976b6 | 2614 | ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1); |
6a0c61b7 | 2615 | if (opcode->flags & PPC_OPCODE_BRLOCK) |
b34976b6 | 2616 | ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1); |
6a0c61b7 | 2617 | if (opcode->flags & PPC_OPCODE_PMR) |
b34976b6 | 2618 | ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1); |
6a0c61b7 | 2619 | if (opcode->flags & PPC_OPCODE_CACHELCK) |
b34976b6 | 2620 | ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1); |
6a0c61b7 | 2621 | if (opcode->flags & PPC_OPCODE_RFMCI) |
b34976b6 | 2622 | ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1); |
6a0c61b7 | 2623 | } |
dc1d03fc | 2624 | #endif |
6a0c61b7 | 2625 | |
252b5132 RH |
2626 | /* Write out the instruction. */ |
2627 | f = frag_more (4); | |
2628 | md_number_to_chars (f, insn, 4); | |
2629 | ||
5d6f4f16 GK |
2630 | #ifdef OBJ_ELF |
2631 | dwarf2_emit_insn (4); | |
2632 | #endif | |
2633 | ||
252b5132 RH |
2634 | /* Create any fixups. At this point we do not use a |
2635 | bfd_reloc_code_real_type, but instead just use the | |
2636 | BFD_RELOC_UNUSED plus the operand index. This lets us easily | |
2637 | handle fixups for any operand type, although that is admittedly | |
2638 | not a very exciting feature. We pick a BFD reloc type in | |
94f592af | 2639 | md_apply_fix3. */ |
252b5132 RH |
2640 | for (i = 0; i < fc; i++) |
2641 | { | |
2642 | const struct powerpc_operand *operand; | |
2643 | ||
2644 | operand = &powerpc_operands[fixups[i].opindex]; | |
2645 | if (fixups[i].reloc != BFD_RELOC_UNUSED) | |
2646 | { | |
99a814a1 | 2647 | reloc_howto_type *reloc_howto; |
252b5132 RH |
2648 | int size; |
2649 | int offset; | |
2650 | fixS *fixP; | |
2651 | ||
99a814a1 | 2652 | reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc); |
252b5132 RH |
2653 | if (!reloc_howto) |
2654 | abort (); | |
2655 | ||
2656 | size = bfd_get_reloc_size (reloc_howto); | |
2657 | offset = target_big_endian ? (4 - size) : 0; | |
2658 | ||
2659 | if (size < 1 || size > 4) | |
bc805888 | 2660 | abort (); |
252b5132 | 2661 | |
99a814a1 AM |
2662 | fixP = fix_new_exp (frag_now, |
2663 | f - frag_now->fr_literal + offset, | |
2664 | size, | |
2665 | &fixups[i].exp, | |
2666 | reloc_howto->pc_relative, | |
252b5132 RH |
2667 | fixups[i].reloc); |
2668 | ||
2669 | /* Turn off complaints that the addend is too large for things like | |
2670 | foo+100000@ha. */ | |
2671 | switch (fixups[i].reloc) | |
2672 | { | |
2673 | case BFD_RELOC_16_GOTOFF: | |
2674 | case BFD_RELOC_PPC_TOC16: | |
2675 | case BFD_RELOC_LO16: | |
2676 | case BFD_RELOC_HI16: | |
2677 | case BFD_RELOC_HI16_S: | |
0baf16f2 | 2678 | #ifdef OBJ_ELF |
0baf16f2 AM |
2679 | case BFD_RELOC_PPC64_HIGHER: |
2680 | case BFD_RELOC_PPC64_HIGHER_S: | |
2681 | case BFD_RELOC_PPC64_HIGHEST: | |
2682 | case BFD_RELOC_PPC64_HIGHEST_S: | |
0baf16f2 | 2683 | #endif |
252b5132 RH |
2684 | fixP->fx_no_overflow = 1; |
2685 | break; | |
2686 | default: | |
2687 | break; | |
2688 | } | |
2689 | } | |
2690 | else | |
99a814a1 AM |
2691 | fix_new_exp (frag_now, |
2692 | f - frag_now->fr_literal, | |
2693 | 4, | |
252b5132 RH |
2694 | &fixups[i].exp, |
2695 | (operand->flags & PPC_OPERAND_RELATIVE) != 0, | |
2696 | ((bfd_reloc_code_real_type) | |
99a814a1 | 2697 | (fixups[i].opindex + (int) BFD_RELOC_UNUSED))); |
252b5132 RH |
2698 | } |
2699 | } | |
2700 | ||
2701 | /* Handle a macro. Gather all the operands, transform them as | |
2702 | described by the macro, and call md_assemble recursively. All the | |
2703 | operands are separated by commas; we don't accept parentheses | |
2704 | around operands here. */ | |
2705 | ||
2706 | static void | |
2707 | ppc_macro (str, macro) | |
2708 | char *str; | |
2709 | const struct powerpc_macro *macro; | |
2710 | { | |
2711 | char *operands[10]; | |
2712 | unsigned int count; | |
2713 | char *s; | |
2714 | unsigned int len; | |
2715 | const char *format; | |
2716 | int arg; | |
2717 | char *send; | |
2718 | char *complete; | |
2719 | ||
2720 | /* Gather the users operands into the operands array. */ | |
2721 | count = 0; | |
2722 | s = str; | |
2723 | while (1) | |
2724 | { | |
2725 | if (count >= sizeof operands / sizeof operands[0]) | |
2726 | break; | |
2727 | operands[count++] = s; | |
2728 | s = strchr (s, ','); | |
2729 | if (s == (char *) NULL) | |
2730 | break; | |
2731 | *s++ = '\0'; | |
81d4177b | 2732 | } |
252b5132 RH |
2733 | |
2734 | if (count != macro->operands) | |
2735 | { | |
2736 | as_bad (_("wrong number of operands")); | |
2737 | return; | |
2738 | } | |
2739 | ||
2740 | /* Work out how large the string must be (the size is unbounded | |
2741 | because it includes user input). */ | |
2742 | len = 0; | |
2743 | format = macro->format; | |
2744 | while (*format != '\0') | |
2745 | { | |
2746 | if (*format != '%') | |
2747 | { | |
2748 | ++len; | |
2749 | ++format; | |
2750 | } | |
2751 | else | |
2752 | { | |
2753 | arg = strtol (format + 1, &send, 10); | |
2754 | know (send != format && arg >= 0 && arg < count); | |
2755 | len += strlen (operands[arg]); | |
2756 | format = send; | |
2757 | } | |
2758 | } | |
2759 | ||
2760 | /* Put the string together. */ | |
2761 | complete = s = (char *) alloca (len + 1); | |
2762 | format = macro->format; | |
2763 | while (*format != '\0') | |
2764 | { | |
2765 | if (*format != '%') | |
2766 | *s++ = *format++; | |
2767 | else | |
2768 | { | |
2769 | arg = strtol (format + 1, &send, 10); | |
2770 | strcpy (s, operands[arg]); | |
2771 | s += strlen (s); | |
2772 | format = send; | |
2773 | } | |
2774 | } | |
2775 | *s = '\0'; | |
2776 | ||
2777 | /* Assemble the constructed instruction. */ | |
2778 | md_assemble (complete); | |
81d4177b | 2779 | } |
252b5132 RH |
2780 | \f |
2781 | #ifdef OBJ_ELF | |
99a814a1 | 2782 | /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */ |
252b5132 RH |
2783 | |
2784 | int | |
2785 | ppc_section_letter (letter, ptr_msg) | |
2786 | int letter; | |
2787 | char **ptr_msg; | |
2788 | { | |
2789 | if (letter == 'e') | |
2790 | return SHF_EXCLUDE; | |
2791 | ||
13ae64f3 | 2792 | *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string"); |
711ef82f | 2793 | return -1; |
252b5132 RH |
2794 | } |
2795 | ||
2796 | int | |
9de8d8f1 RH |
2797 | ppc_section_word (str, len) |
2798 | char *str; | |
2799 | size_t len; | |
252b5132 | 2800 | { |
9de8d8f1 RH |
2801 | if (len == 7 && strncmp (str, "exclude", 7) == 0) |
2802 | return SHF_EXCLUDE; | |
252b5132 | 2803 | |
9de8d8f1 | 2804 | return -1; |
252b5132 RH |
2805 | } |
2806 | ||
2807 | int | |
9de8d8f1 RH |
2808 | ppc_section_type (str, len) |
2809 | char *str; | |
2810 | size_t len; | |
252b5132 | 2811 | { |
9de8d8f1 RH |
2812 | if (len == 7 && strncmp (str, "ordered", 7) == 0) |
2813 | return SHT_ORDERED; | |
252b5132 | 2814 | |
9de8d8f1 | 2815 | return -1; |
252b5132 RH |
2816 | } |
2817 | ||
2818 | int | |
2819 | ppc_section_flags (flags, attr, type) | |
2820 | int flags; | |
2821 | int attr; | |
2822 | int type; | |
2823 | { | |
2824 | if (type == SHT_ORDERED) | |
2825 | flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES; | |
2826 | ||
2827 | if (attr & SHF_EXCLUDE) | |
2828 | flags |= SEC_EXCLUDE; | |
2829 | ||
2830 | return flags; | |
2831 | } | |
2832 | #endif /* OBJ_ELF */ | |
2833 | ||
2834 | \f | |
2835 | /* Pseudo-op handling. */ | |
2836 | ||
2837 | /* The .byte pseudo-op. This is similar to the normal .byte | |
2838 | pseudo-op, but it can also take a single ASCII string. */ | |
2839 | ||
2840 | static void | |
2841 | ppc_byte (ignore) | |
92161534 | 2842 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2843 | { |
2844 | if (*input_line_pointer != '\"') | |
2845 | { | |
2846 | cons (1); | |
2847 | return; | |
2848 | } | |
2849 | ||
2850 | /* Gather characters. A real double quote is doubled. Unusual | |
2851 | characters are not permitted. */ | |
2852 | ++input_line_pointer; | |
2853 | while (1) | |
2854 | { | |
2855 | char c; | |
2856 | ||
2857 | c = *input_line_pointer++; | |
2858 | ||
2859 | if (c == '\"') | |
2860 | { | |
2861 | if (*input_line_pointer != '\"') | |
2862 | break; | |
2863 | ++input_line_pointer; | |
2864 | } | |
2865 | ||
2866 | FRAG_APPEND_1_CHAR (c); | |
2867 | } | |
2868 | ||
2869 | demand_empty_rest_of_line (); | |
2870 | } | |
2871 | \f | |
2872 | #ifdef OBJ_XCOFF | |
2873 | ||
2874 | /* XCOFF specific pseudo-op handling. */ | |
2875 | ||
2876 | /* This is set if we are creating a .stabx symbol, since we don't want | |
2877 | to handle symbol suffixes for such symbols. */ | |
b34976b6 | 2878 | static bfd_boolean ppc_stab_symbol; |
252b5132 RH |
2879 | |
2880 | /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common | |
2881 | symbols in the .bss segment as though they were local common | |
67c1ffbe | 2882 | symbols, and uses a different smclas. The native Aix 4.3.3 assembler |
1ad63b2f | 2883 | aligns .comm and .lcomm to 4 bytes. */ |
252b5132 RH |
2884 | |
2885 | static void | |
2886 | ppc_comm (lcomm) | |
2887 | int lcomm; | |
2888 | { | |
2889 | asection *current_seg = now_seg; | |
2890 | subsegT current_subseg = now_subseg; | |
2891 | char *name; | |
2892 | char endc; | |
2893 | char *end_name; | |
2894 | offsetT size; | |
2895 | offsetT align; | |
2896 | symbolS *lcomm_sym = NULL; | |
2897 | symbolS *sym; | |
2898 | char *pfrag; | |
2899 | ||
2900 | name = input_line_pointer; | |
2901 | endc = get_symbol_end (); | |
2902 | end_name = input_line_pointer; | |
2903 | *end_name = endc; | |
2904 | ||
2905 | if (*input_line_pointer != ',') | |
2906 | { | |
2907 | as_bad (_("missing size")); | |
2908 | ignore_rest_of_line (); | |
2909 | return; | |
2910 | } | |
2911 | ++input_line_pointer; | |
2912 | ||
2913 | size = get_absolute_expression (); | |
2914 | if (size < 0) | |
2915 | { | |
2916 | as_bad (_("negative size")); | |
2917 | ignore_rest_of_line (); | |
2918 | return; | |
2919 | } | |
2920 | ||
2921 | if (! lcomm) | |
2922 | { | |
2923 | /* The third argument to .comm is the alignment. */ | |
2924 | if (*input_line_pointer != ',') | |
1ad63b2f | 2925 | align = 2; |
252b5132 RH |
2926 | else |
2927 | { | |
2928 | ++input_line_pointer; | |
2929 | align = get_absolute_expression (); | |
2930 | if (align <= 0) | |
2931 | { | |
2932 | as_warn (_("ignoring bad alignment")); | |
1ad63b2f | 2933 | align = 2; |
252b5132 RH |
2934 | } |
2935 | } | |
2936 | } | |
2937 | else | |
2938 | { | |
2939 | char *lcomm_name; | |
2940 | char lcomm_endc; | |
2941 | ||
1ad63b2f | 2942 | if (size <= 4) |
252b5132 RH |
2943 | align = 2; |
2944 | else | |
2945 | align = 3; | |
2946 | ||
2947 | /* The third argument to .lcomm appears to be the real local | |
2948 | common symbol to create. References to the symbol named in | |
2949 | the first argument are turned into references to the third | |
2950 | argument. */ | |
2951 | if (*input_line_pointer != ',') | |
2952 | { | |
2953 | as_bad (_("missing real symbol name")); | |
2954 | ignore_rest_of_line (); | |
2955 | return; | |
2956 | } | |
2957 | ++input_line_pointer; | |
2958 | ||
2959 | lcomm_name = input_line_pointer; | |
2960 | lcomm_endc = get_symbol_end (); | |
81d4177b | 2961 | |
252b5132 RH |
2962 | lcomm_sym = symbol_find_or_make (lcomm_name); |
2963 | ||
2964 | *input_line_pointer = lcomm_endc; | |
2965 | } | |
2966 | ||
2967 | *end_name = '\0'; | |
2968 | sym = symbol_find_or_make (name); | |
2969 | *end_name = endc; | |
2970 | ||
2971 | if (S_IS_DEFINED (sym) | |
2972 | || S_GET_VALUE (sym) != 0) | |
2973 | { | |
2974 | as_bad (_("attempt to redefine symbol")); | |
2975 | ignore_rest_of_line (); | |
2976 | return; | |
2977 | } | |
81d4177b | 2978 | |
252b5132 | 2979 | record_alignment (bss_section, align); |
81d4177b | 2980 | |
252b5132 RH |
2981 | if (! lcomm |
2982 | || ! S_IS_DEFINED (lcomm_sym)) | |
2983 | { | |
2984 | symbolS *def_sym; | |
2985 | offsetT def_size; | |
2986 | ||
2987 | if (! lcomm) | |
2988 | { | |
2989 | def_sym = sym; | |
2990 | def_size = size; | |
2991 | S_SET_EXTERNAL (sym); | |
2992 | } | |
2993 | else | |
2994 | { | |
809ffe0d | 2995 | symbol_get_tc (lcomm_sym)->output = 1; |
252b5132 RH |
2996 | def_sym = lcomm_sym; |
2997 | def_size = 0; | |
2998 | } | |
2999 | ||
3000 | subseg_set (bss_section, 1); | |
3001 | frag_align (align, 0, 0); | |
81d4177b | 3002 | |
809ffe0d | 3003 | symbol_set_frag (def_sym, frag_now); |
252b5132 RH |
3004 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym, |
3005 | def_size, (char *) NULL); | |
3006 | *pfrag = 0; | |
3007 | S_SET_SEGMENT (def_sym, bss_section); | |
809ffe0d | 3008 | symbol_get_tc (def_sym)->align = align; |
252b5132 RH |
3009 | } |
3010 | else if (lcomm) | |
3011 | { | |
3012 | /* Align the size of lcomm_sym. */ | |
809ffe0d ILT |
3013 | symbol_get_frag (lcomm_sym)->fr_offset = |
3014 | ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1) | |
252b5132 | 3015 | &~ ((1 << align) - 1)); |
809ffe0d ILT |
3016 | if (align > symbol_get_tc (lcomm_sym)->align) |
3017 | symbol_get_tc (lcomm_sym)->align = align; | |
252b5132 RH |
3018 | } |
3019 | ||
3020 | if (lcomm) | |
3021 | { | |
3022 | /* Make sym an offset from lcomm_sym. */ | |
3023 | S_SET_SEGMENT (sym, bss_section); | |
809ffe0d ILT |
3024 | symbol_set_frag (sym, symbol_get_frag (lcomm_sym)); |
3025 | S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset); | |
3026 | symbol_get_frag (lcomm_sym)->fr_offset += size; | |
252b5132 RH |
3027 | } |
3028 | ||
3029 | subseg_set (current_seg, current_subseg); | |
3030 | ||
3031 | demand_empty_rest_of_line (); | |
3032 | } | |
3033 | ||
3034 | /* The .csect pseudo-op. This switches us into a different | |
3035 | subsegment. The first argument is a symbol whose value is the | |
3036 | start of the .csect. In COFF, csect symbols get special aux | |
3037 | entries defined by the x_csect field of union internal_auxent. The | |
3038 | optional second argument is the alignment (the default is 2). */ | |
3039 | ||
3040 | static void | |
3041 | ppc_csect (ignore) | |
5480ccf3 | 3042 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3043 | { |
3044 | char *name; | |
3045 | char endc; | |
3046 | symbolS *sym; | |
931e13a6 | 3047 | offsetT align; |
252b5132 RH |
3048 | |
3049 | name = input_line_pointer; | |
3050 | endc = get_symbol_end (); | |
81d4177b | 3051 | |
252b5132 RH |
3052 | sym = symbol_find_or_make (name); |
3053 | ||
3054 | *input_line_pointer = endc; | |
3055 | ||
3056 | if (S_GET_NAME (sym)[0] == '\0') | |
3057 | { | |
3058 | /* An unnamed csect is assumed to be [PR]. */ | |
809ffe0d | 3059 | symbol_get_tc (sym)->class = XMC_PR; |
252b5132 RH |
3060 | } |
3061 | ||
931e13a6 | 3062 | align = 2; |
252b5132 RH |
3063 | if (*input_line_pointer == ',') |
3064 | { | |
3065 | ++input_line_pointer; | |
931e13a6 | 3066 | align = get_absolute_expression (); |
252b5132 RH |
3067 | } |
3068 | ||
931e13a6 AM |
3069 | ppc_change_csect (sym, align); |
3070 | ||
252b5132 RH |
3071 | demand_empty_rest_of_line (); |
3072 | } | |
3073 | ||
3074 | /* Change to a different csect. */ | |
3075 | ||
3076 | static void | |
931e13a6 | 3077 | ppc_change_csect (sym, align) |
252b5132 | 3078 | symbolS *sym; |
931e13a6 | 3079 | offsetT align; |
252b5132 RH |
3080 | { |
3081 | if (S_IS_DEFINED (sym)) | |
809ffe0d | 3082 | subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg); |
252b5132 RH |
3083 | else |
3084 | { | |
3085 | symbolS **list_ptr; | |
3086 | int after_toc; | |
3087 | int hold_chunksize; | |
3088 | symbolS *list; | |
931e13a6 AM |
3089 | int is_code; |
3090 | segT sec; | |
252b5132 RH |
3091 | |
3092 | /* This is a new csect. We need to look at the symbol class to | |
3093 | figure out whether it should go in the text section or the | |
3094 | data section. */ | |
3095 | after_toc = 0; | |
931e13a6 | 3096 | is_code = 0; |
809ffe0d | 3097 | switch (symbol_get_tc (sym)->class) |
252b5132 RH |
3098 | { |
3099 | case XMC_PR: | |
3100 | case XMC_RO: | |
3101 | case XMC_DB: | |
3102 | case XMC_GL: | |
3103 | case XMC_XO: | |
3104 | case XMC_SV: | |
3105 | case XMC_TI: | |
3106 | case XMC_TB: | |
3107 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3108 | symbol_get_tc (sym)->subseg = ppc_text_subsegment; |
252b5132 RH |
3109 | ++ppc_text_subsegment; |
3110 | list_ptr = &ppc_text_csects; | |
931e13a6 | 3111 | is_code = 1; |
252b5132 RH |
3112 | break; |
3113 | case XMC_RW: | |
3114 | case XMC_TC0: | |
3115 | case XMC_TC: | |
3116 | case XMC_DS: | |
3117 | case XMC_UA: | |
3118 | case XMC_BS: | |
3119 | case XMC_UC: | |
3120 | if (ppc_toc_csect != NULL | |
809ffe0d ILT |
3121 | && (symbol_get_tc (ppc_toc_csect)->subseg + 1 |
3122 | == ppc_data_subsegment)) | |
252b5132 RH |
3123 | after_toc = 1; |
3124 | S_SET_SEGMENT (sym, data_section); | |
809ffe0d | 3125 | symbol_get_tc (sym)->subseg = ppc_data_subsegment; |
252b5132 RH |
3126 | ++ppc_data_subsegment; |
3127 | list_ptr = &ppc_data_csects; | |
3128 | break; | |
3129 | default: | |
3130 | abort (); | |
3131 | } | |
3132 | ||
3133 | /* We set the obstack chunk size to a small value before | |
99a814a1 AM |
3134 | changing subsegments, so that we don't use a lot of memory |
3135 | space for what may be a small section. */ | |
252b5132 RH |
3136 | hold_chunksize = chunksize; |
3137 | chunksize = 64; | |
3138 | ||
931e13a6 AM |
3139 | sec = subseg_new (segment_name (S_GET_SEGMENT (sym)), |
3140 | symbol_get_tc (sym)->subseg); | |
252b5132 RH |
3141 | |
3142 | chunksize = hold_chunksize; | |
3143 | ||
3144 | if (after_toc) | |
3145 | ppc_after_toc_frag = frag_now; | |
3146 | ||
931e13a6 AM |
3147 | record_alignment (sec, align); |
3148 | if (is_code) | |
3149 | frag_align_code (align, 0); | |
3150 | else | |
3151 | frag_align (align, 0, 0); | |
3152 | ||
809ffe0d | 3153 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3154 | S_SET_VALUE (sym, (valueT) frag_now_fix ()); |
3155 | ||
931e13a6 | 3156 | symbol_get_tc (sym)->align = align; |
809ffe0d ILT |
3157 | symbol_get_tc (sym)->output = 1; |
3158 | symbol_get_tc (sym)->within = sym; | |
81d4177b | 3159 | |
252b5132 | 3160 | for (list = *list_ptr; |
809ffe0d ILT |
3161 | symbol_get_tc (list)->next != (symbolS *) NULL; |
3162 | list = symbol_get_tc (list)->next) | |
252b5132 | 3163 | ; |
809ffe0d | 3164 | symbol_get_tc (list)->next = sym; |
81d4177b | 3165 | |
252b5132 | 3166 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); |
809ffe0d ILT |
3167 | symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP, |
3168 | &symbol_lastP); | |
252b5132 RH |
3169 | } |
3170 | ||
3171 | ppc_current_csect = sym; | |
3172 | } | |
3173 | ||
3174 | /* This function handles the .text and .data pseudo-ops. These | |
3175 | pseudo-ops aren't really used by XCOFF; we implement them for the | |
3176 | convenience of people who aren't used to XCOFF. */ | |
3177 | ||
3178 | static void | |
3179 | ppc_section (type) | |
3180 | int type; | |
3181 | { | |
3182 | const char *name; | |
3183 | symbolS *sym; | |
3184 | ||
3185 | if (type == 't') | |
3186 | name = ".text[PR]"; | |
3187 | else if (type == 'd') | |
3188 | name = ".data[RW]"; | |
3189 | else | |
3190 | abort (); | |
3191 | ||
3192 | sym = symbol_find_or_make (name); | |
3193 | ||
931e13a6 | 3194 | ppc_change_csect (sym, 2); |
252b5132 RH |
3195 | |
3196 | demand_empty_rest_of_line (); | |
3197 | } | |
3198 | ||
3199 | /* This function handles the .section pseudo-op. This is mostly to | |
3200 | give an error, since XCOFF only supports .text, .data and .bss, but | |
3201 | we do permit the user to name the text or data section. */ | |
3202 | ||
3203 | static void | |
3204 | ppc_named_section (ignore) | |
5480ccf3 | 3205 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3206 | { |
3207 | char *user_name; | |
3208 | const char *real_name; | |
3209 | char c; | |
3210 | symbolS *sym; | |
3211 | ||
3212 | user_name = input_line_pointer; | |
3213 | c = get_symbol_end (); | |
3214 | ||
3215 | if (strcmp (user_name, ".text") == 0) | |
3216 | real_name = ".text[PR]"; | |
3217 | else if (strcmp (user_name, ".data") == 0) | |
3218 | real_name = ".data[RW]"; | |
3219 | else | |
3220 | { | |
3221 | as_bad (_("The XCOFF file format does not support arbitrary sections")); | |
3222 | *input_line_pointer = c; | |
3223 | ignore_rest_of_line (); | |
3224 | return; | |
3225 | } | |
3226 | ||
3227 | *input_line_pointer = c; | |
3228 | ||
3229 | sym = symbol_find_or_make (real_name); | |
3230 | ||
931e13a6 | 3231 | ppc_change_csect (sym, 2); |
252b5132 RH |
3232 | |
3233 | demand_empty_rest_of_line (); | |
3234 | } | |
3235 | ||
3236 | /* The .extern pseudo-op. We create an undefined symbol. */ | |
3237 | ||
3238 | static void | |
3239 | ppc_extern (ignore) | |
5480ccf3 | 3240 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3241 | { |
3242 | char *name; | |
3243 | char endc; | |
3244 | ||
3245 | name = input_line_pointer; | |
3246 | endc = get_symbol_end (); | |
3247 | ||
3248 | (void) symbol_find_or_make (name); | |
3249 | ||
3250 | *input_line_pointer = endc; | |
3251 | ||
3252 | demand_empty_rest_of_line (); | |
3253 | } | |
3254 | ||
3255 | /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */ | |
3256 | ||
3257 | static void | |
3258 | ppc_lglobl (ignore) | |
5480ccf3 | 3259 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3260 | { |
3261 | char *name; | |
3262 | char endc; | |
3263 | symbolS *sym; | |
3264 | ||
3265 | name = input_line_pointer; | |
3266 | endc = get_symbol_end (); | |
3267 | ||
3268 | sym = symbol_find_or_make (name); | |
3269 | ||
3270 | *input_line_pointer = endc; | |
3271 | ||
809ffe0d | 3272 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3273 | |
3274 | demand_empty_rest_of_line (); | |
3275 | } | |
3276 | ||
3277 | /* The .rename pseudo-op. The RS/6000 assembler can rename symbols, | |
3278 | although I don't know why it bothers. */ | |
3279 | ||
3280 | static void | |
3281 | ppc_rename (ignore) | |
5480ccf3 | 3282 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3283 | { |
3284 | char *name; | |
3285 | char endc; | |
3286 | symbolS *sym; | |
3287 | int len; | |
3288 | ||
3289 | name = input_line_pointer; | |
3290 | endc = get_symbol_end (); | |
3291 | ||
3292 | sym = symbol_find_or_make (name); | |
3293 | ||
3294 | *input_line_pointer = endc; | |
3295 | ||
3296 | if (*input_line_pointer != ',') | |
3297 | { | |
3298 | as_bad (_("missing rename string")); | |
3299 | ignore_rest_of_line (); | |
3300 | return; | |
3301 | } | |
3302 | ++input_line_pointer; | |
3303 | ||
809ffe0d | 3304 | symbol_get_tc (sym)->real_name = demand_copy_C_string (&len); |
252b5132 RH |
3305 | |
3306 | demand_empty_rest_of_line (); | |
3307 | } | |
3308 | ||
3309 | /* The .stabx pseudo-op. This is similar to a normal .stabs | |
3310 | pseudo-op, but slightly different. A sample is | |
3311 | .stabx "main:F-1",.main,142,0 | |
3312 | The first argument is the symbol name to create. The second is the | |
3313 | value, and the third is the storage class. The fourth seems to be | |
3314 | always zero, and I am assuming it is the type. */ | |
3315 | ||
3316 | static void | |
3317 | ppc_stabx (ignore) | |
5480ccf3 | 3318 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3319 | { |
3320 | char *name; | |
3321 | int len; | |
3322 | symbolS *sym; | |
3323 | expressionS exp; | |
3324 | ||
3325 | name = demand_copy_C_string (&len); | |
3326 | ||
3327 | if (*input_line_pointer != ',') | |
3328 | { | |
3329 | as_bad (_("missing value")); | |
3330 | return; | |
3331 | } | |
3332 | ++input_line_pointer; | |
3333 | ||
b34976b6 | 3334 | ppc_stab_symbol = TRUE; |
252b5132 | 3335 | sym = symbol_make (name); |
b34976b6 | 3336 | ppc_stab_symbol = FALSE; |
252b5132 | 3337 | |
809ffe0d | 3338 | symbol_get_tc (sym)->real_name = name; |
252b5132 RH |
3339 | |
3340 | (void) expression (&exp); | |
3341 | ||
3342 | switch (exp.X_op) | |
3343 | { | |
3344 | case O_illegal: | |
3345 | case O_absent: | |
3346 | case O_big: | |
3347 | as_bad (_("illegal .stabx expression; zero assumed")); | |
3348 | exp.X_add_number = 0; | |
3349 | /* Fall through. */ | |
3350 | case O_constant: | |
3351 | S_SET_VALUE (sym, (valueT) exp.X_add_number); | |
809ffe0d | 3352 | symbol_set_frag (sym, &zero_address_frag); |
252b5132 RH |
3353 | break; |
3354 | ||
3355 | case O_symbol: | |
3356 | if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section) | |
809ffe0d | 3357 | symbol_set_value_expression (sym, &exp); |
252b5132 RH |
3358 | else |
3359 | { | |
3360 | S_SET_VALUE (sym, | |
3361 | exp.X_add_number + S_GET_VALUE (exp.X_add_symbol)); | |
809ffe0d | 3362 | symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol)); |
252b5132 RH |
3363 | } |
3364 | break; | |
3365 | ||
3366 | default: | |
3367 | /* The value is some complex expression. This will probably | |
99a814a1 AM |
3368 | fail at some later point, but this is probably the right |
3369 | thing to do here. */ | |
809ffe0d | 3370 | symbol_set_value_expression (sym, &exp); |
252b5132 RH |
3371 | break; |
3372 | } | |
3373 | ||
3374 | S_SET_SEGMENT (sym, ppc_coff_debug_section); | |
809ffe0d | 3375 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3376 | |
3377 | if (*input_line_pointer != ',') | |
3378 | { | |
3379 | as_bad (_("missing class")); | |
3380 | return; | |
3381 | } | |
3382 | ++input_line_pointer; | |
3383 | ||
3384 | S_SET_STORAGE_CLASS (sym, get_absolute_expression ()); | |
3385 | ||
3386 | if (*input_line_pointer != ',') | |
3387 | { | |
3388 | as_bad (_("missing type")); | |
3389 | return; | |
3390 | } | |
3391 | ++input_line_pointer; | |
3392 | ||
3393 | S_SET_DATA_TYPE (sym, get_absolute_expression ()); | |
3394 | ||
809ffe0d | 3395 | symbol_get_tc (sym)->output = 1; |
252b5132 | 3396 | |
6877bb43 | 3397 | if (S_GET_STORAGE_CLASS (sym) == C_STSYM) { |
99a814a1 | 3398 | |
809ffe0d | 3399 | symbol_get_tc (sym)->within = ppc_current_block; |
252b5132 | 3400 | |
41ea10b1 | 3401 | /* In this case : |
99a814a1 | 3402 | |
41ea10b1 TR |
3403 | .bs name |
3404 | .stabx "z",arrays_,133,0 | |
3405 | .es | |
99a814a1 | 3406 | |
41ea10b1 | 3407 | .comm arrays_,13768,3 |
99a814a1 | 3408 | |
41ea10b1 TR |
3409 | resolve_symbol_value will copy the exp's "within" into sym's when the |
3410 | offset is 0. Since this seems to be corner case problem, | |
3411 | only do the correction for storage class C_STSYM. A better solution | |
0baf16f2 | 3412 | would be to have the tc field updated in ppc_symbol_new_hook. */ |
99a814a1 AM |
3413 | |
3414 | if (exp.X_op == O_symbol) | |
41ea10b1 TR |
3415 | { |
3416 | symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block; | |
3417 | } | |
6877bb43 | 3418 | } |
99a814a1 | 3419 | |
252b5132 RH |
3420 | if (exp.X_op != O_symbol |
3421 | || ! S_IS_EXTERNAL (exp.X_add_symbol) | |
3422 | || S_GET_SEGMENT (exp.X_add_symbol) != bss_section) | |
3423 | ppc_frob_label (sym); | |
3424 | else | |
3425 | { | |
3426 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
3427 | symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP); | |
809ffe0d ILT |
3428 | if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol) |
3429 | symbol_get_tc (ppc_current_csect)->within = sym; | |
252b5132 RH |
3430 | } |
3431 | ||
3432 | demand_empty_rest_of_line (); | |
3433 | } | |
3434 | ||
3435 | /* The .function pseudo-op. This takes several arguments. The first | |
3436 | argument seems to be the external name of the symbol. The second | |
67c1ffbe | 3437 | argument seems to be the label for the start of the function. gcc |
252b5132 RH |
3438 | uses the same name for both. I have no idea what the third and |
3439 | fourth arguments are meant to be. The optional fifth argument is | |
3440 | an expression for the size of the function. In COFF this symbol | |
3441 | gets an aux entry like that used for a csect. */ | |
3442 | ||
3443 | static void | |
3444 | ppc_function (ignore) | |
5480ccf3 | 3445 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3446 | { |
3447 | char *name; | |
3448 | char endc; | |
3449 | char *s; | |
3450 | symbolS *ext_sym; | |
3451 | symbolS *lab_sym; | |
3452 | ||
3453 | name = input_line_pointer; | |
3454 | endc = get_symbol_end (); | |
3455 | ||
3456 | /* Ignore any [PR] suffix. */ | |
3457 | name = ppc_canonicalize_symbol_name (name); | |
3458 | s = strchr (name, '['); | |
3459 | if (s != (char *) NULL | |
3460 | && strcmp (s + 1, "PR]") == 0) | |
3461 | *s = '\0'; | |
3462 | ||
3463 | ext_sym = symbol_find_or_make (name); | |
3464 | ||
3465 | *input_line_pointer = endc; | |
3466 | ||
3467 | if (*input_line_pointer != ',') | |
3468 | { | |
3469 | as_bad (_("missing symbol name")); | |
3470 | ignore_rest_of_line (); | |
3471 | return; | |
3472 | } | |
3473 | ++input_line_pointer; | |
3474 | ||
3475 | name = input_line_pointer; | |
3476 | endc = get_symbol_end (); | |
3477 | ||
3478 | lab_sym = symbol_find_or_make (name); | |
3479 | ||
3480 | *input_line_pointer = endc; | |
3481 | ||
3482 | if (ext_sym != lab_sym) | |
3483 | { | |
809ffe0d ILT |
3484 | expressionS exp; |
3485 | ||
3486 | exp.X_op = O_symbol; | |
3487 | exp.X_add_symbol = lab_sym; | |
3488 | exp.X_op_symbol = NULL; | |
3489 | exp.X_add_number = 0; | |
3490 | exp.X_unsigned = 0; | |
3491 | symbol_set_value_expression (ext_sym, &exp); | |
252b5132 RH |
3492 | } |
3493 | ||
809ffe0d ILT |
3494 | if (symbol_get_tc (ext_sym)->class == -1) |
3495 | symbol_get_tc (ext_sym)->class = XMC_PR; | |
3496 | symbol_get_tc (ext_sym)->output = 1; | |
252b5132 RH |
3497 | |
3498 | if (*input_line_pointer == ',') | |
3499 | { | |
3500 | expressionS ignore; | |
3501 | ||
3502 | /* Ignore the third argument. */ | |
3503 | ++input_line_pointer; | |
3504 | expression (&ignore); | |
3505 | if (*input_line_pointer == ',') | |
3506 | { | |
3507 | /* Ignore the fourth argument. */ | |
3508 | ++input_line_pointer; | |
3509 | expression (&ignore); | |
3510 | if (*input_line_pointer == ',') | |
3511 | { | |
3512 | /* The fifth argument is the function size. */ | |
3513 | ++input_line_pointer; | |
809ffe0d ILT |
3514 | symbol_get_tc (ext_sym)->size = symbol_new ("L0\001", |
3515 | absolute_section, | |
3516 | (valueT) 0, | |
3517 | &zero_address_frag); | |
3518 | pseudo_set (symbol_get_tc (ext_sym)->size); | |
252b5132 RH |
3519 | } |
3520 | } | |
3521 | } | |
3522 | ||
3523 | S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT); | |
3524 | SF_SET_FUNCTION (ext_sym); | |
3525 | SF_SET_PROCESS (ext_sym); | |
3526 | coff_add_linesym (ext_sym); | |
3527 | ||
3528 | demand_empty_rest_of_line (); | |
3529 | } | |
3530 | ||
3531 | /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named | |
8642cce8 TR |
3532 | ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym |
3533 | with the correct line number */ | |
5d6255fe | 3534 | |
8642cce8 | 3535 | static symbolS *saved_bi_sym = 0; |
252b5132 RH |
3536 | |
3537 | static void | |
3538 | ppc_bf (ignore) | |
5480ccf3 | 3539 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3540 | { |
3541 | symbolS *sym; | |
3542 | ||
3543 | sym = symbol_make (".bf"); | |
3544 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3545 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3546 | S_SET_VALUE (sym, frag_now_fix ()); |
3547 | S_SET_STORAGE_CLASS (sym, C_FCN); | |
3548 | ||
3549 | coff_line_base = get_absolute_expression (); | |
3550 | ||
3551 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3552 | SA_SET_SYM_LNNO (sym, coff_line_base); | |
3553 | ||
8642cce8 | 3554 | /* Line number for bi. */ |
5d6255fe | 3555 | if (saved_bi_sym) |
8642cce8 TR |
3556 | { |
3557 | S_SET_VALUE (saved_bi_sym, coff_n_line_nos); | |
3558 | saved_bi_sym = 0; | |
3559 | } | |
5d6255fe | 3560 | |
8642cce8 | 3561 | |
809ffe0d | 3562 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3563 | |
3564 | ppc_frob_label (sym); | |
3565 | ||
3566 | demand_empty_rest_of_line (); | |
3567 | } | |
3568 | ||
3569 | /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named | |
3570 | ".ef", except that the line number is absolute, not relative to the | |
3571 | most recent ".bf" symbol. */ | |
3572 | ||
3573 | static void | |
3574 | ppc_ef (ignore) | |
5480ccf3 | 3575 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3576 | { |
3577 | symbolS *sym; | |
3578 | ||
3579 | sym = symbol_make (".ef"); | |
3580 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3581 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3582 | S_SET_VALUE (sym, frag_now_fix ()); |
3583 | S_SET_STORAGE_CLASS (sym, C_FCN); | |
3584 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3585 | SA_SET_SYM_LNNO (sym, get_absolute_expression ()); | |
809ffe0d | 3586 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3587 | |
3588 | ppc_frob_label (sym); | |
3589 | ||
3590 | demand_empty_rest_of_line (); | |
3591 | } | |
3592 | ||
3593 | /* The .bi and .ei pseudo-ops. These take a string argument and | |
3594 | generates a C_BINCL or C_EINCL symbol, which goes at the start of | |
8642cce8 TR |
3595 | the symbol list. The value of .bi will be know when the next .bf |
3596 | is encountered. */ | |
252b5132 RH |
3597 | |
3598 | static void | |
3599 | ppc_biei (ei) | |
3600 | int ei; | |
3601 | { | |
3602 | static symbolS *last_biei; | |
3603 | ||
3604 | char *name; | |
3605 | int len; | |
3606 | symbolS *sym; | |
3607 | symbolS *look; | |
3608 | ||
3609 | name = demand_copy_C_string (&len); | |
3610 | ||
3611 | /* The value of these symbols is actually file offset. Here we set | |
3612 | the value to the index into the line number entries. In | |
3613 | ppc_frob_symbols we set the fix_line field, which will cause BFD | |
3614 | to do the right thing. */ | |
3615 | ||
3616 | sym = symbol_make (name); | |
3617 | /* obj-coff.c currently only handles line numbers correctly in the | |
3618 | .text section. */ | |
3619 | S_SET_SEGMENT (sym, text_section); | |
3620 | S_SET_VALUE (sym, coff_n_line_nos); | |
809ffe0d | 3621 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3622 | |
3623 | S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL); | |
809ffe0d | 3624 | symbol_get_tc (sym)->output = 1; |
81d4177b | 3625 | |
8642cce8 | 3626 | /* Save bi. */ |
5d6255fe | 3627 | if (ei) |
8642cce8 TR |
3628 | saved_bi_sym = 0; |
3629 | else | |
3630 | saved_bi_sym = sym; | |
3631 | ||
252b5132 RH |
3632 | for (look = last_biei ? last_biei : symbol_rootP; |
3633 | (look != (symbolS *) NULL | |
3634 | && (S_GET_STORAGE_CLASS (look) == C_FILE | |
3635 | || S_GET_STORAGE_CLASS (look) == C_BINCL | |
3636 | || S_GET_STORAGE_CLASS (look) == C_EINCL)); | |
3637 | look = symbol_next (look)) | |
3638 | ; | |
3639 | if (look != (symbolS *) NULL) | |
3640 | { | |
3641 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
3642 | symbol_insert (sym, look, &symbol_rootP, &symbol_lastP); | |
3643 | last_biei = sym; | |
3644 | } | |
3645 | ||
3646 | demand_empty_rest_of_line (); | |
3647 | } | |
3648 | ||
3649 | /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs". | |
3650 | There is one argument, which is a csect symbol. The value of the | |
3651 | .bs symbol is the index of this csect symbol. */ | |
3652 | ||
3653 | static void | |
3654 | ppc_bs (ignore) | |
5480ccf3 | 3655 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3656 | { |
3657 | char *name; | |
3658 | char endc; | |
3659 | symbolS *csect; | |
3660 | symbolS *sym; | |
3661 | ||
3662 | if (ppc_current_block != NULL) | |
3663 | as_bad (_("nested .bs blocks")); | |
3664 | ||
3665 | name = input_line_pointer; | |
3666 | endc = get_symbol_end (); | |
3667 | ||
3668 | csect = symbol_find_or_make (name); | |
3669 | ||
3670 | *input_line_pointer = endc; | |
3671 | ||
3672 | sym = symbol_make (".bs"); | |
3673 | S_SET_SEGMENT (sym, now_seg); | |
3674 | S_SET_STORAGE_CLASS (sym, C_BSTAT); | |
809ffe0d ILT |
3675 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
3676 | symbol_get_tc (sym)->output = 1; | |
252b5132 | 3677 | |
809ffe0d | 3678 | symbol_get_tc (sym)->within = csect; |
252b5132 RH |
3679 | |
3680 | ppc_frob_label (sym); | |
3681 | ||
3682 | ppc_current_block = sym; | |
3683 | ||
3684 | demand_empty_rest_of_line (); | |
3685 | } | |
3686 | ||
3687 | /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */ | |
3688 | ||
3689 | static void | |
3690 | ppc_es (ignore) | |
5480ccf3 | 3691 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3692 | { |
3693 | symbolS *sym; | |
3694 | ||
3695 | if (ppc_current_block == NULL) | |
3696 | as_bad (_(".es without preceding .bs")); | |
3697 | ||
3698 | sym = symbol_make (".es"); | |
3699 | S_SET_SEGMENT (sym, now_seg); | |
3700 | S_SET_STORAGE_CLASS (sym, C_ESTAT); | |
809ffe0d ILT |
3701 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
3702 | symbol_get_tc (sym)->output = 1; | |
252b5132 RH |
3703 | |
3704 | ppc_frob_label (sym); | |
3705 | ||
3706 | ppc_current_block = NULL; | |
3707 | ||
3708 | demand_empty_rest_of_line (); | |
3709 | } | |
3710 | ||
3711 | /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a | |
3712 | line number. */ | |
3713 | ||
3714 | static void | |
3715 | ppc_bb (ignore) | |
5480ccf3 | 3716 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3717 | { |
3718 | symbolS *sym; | |
3719 | ||
3720 | sym = symbol_make (".bb"); | |
3721 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3722 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3723 | S_SET_VALUE (sym, frag_now_fix ()); |
3724 | S_SET_STORAGE_CLASS (sym, C_BLOCK); | |
3725 | ||
3726 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3727 | SA_SET_SYM_LNNO (sym, get_absolute_expression ()); | |
3728 | ||
809ffe0d | 3729 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3730 | |
3731 | SF_SET_PROCESS (sym); | |
3732 | ||
3733 | ppc_frob_label (sym); | |
3734 | ||
3735 | demand_empty_rest_of_line (); | |
3736 | } | |
3737 | ||
3738 | /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a | |
3739 | line number. */ | |
3740 | ||
3741 | static void | |
3742 | ppc_eb (ignore) | |
5480ccf3 | 3743 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3744 | { |
3745 | symbolS *sym; | |
3746 | ||
3747 | sym = symbol_make (".eb"); | |
3748 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3749 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3750 | S_SET_VALUE (sym, frag_now_fix ()); |
3751 | S_SET_STORAGE_CLASS (sym, C_BLOCK); | |
3752 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3753 | SA_SET_SYM_LNNO (sym, get_absolute_expression ()); | |
809ffe0d | 3754 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3755 | |
3756 | SF_SET_PROCESS (sym); | |
3757 | ||
3758 | ppc_frob_label (sym); | |
3759 | ||
3760 | demand_empty_rest_of_line (); | |
3761 | } | |
3762 | ||
3763 | /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a | |
3764 | specified name. */ | |
3765 | ||
3766 | static void | |
3767 | ppc_bc (ignore) | |
5480ccf3 | 3768 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3769 | { |
3770 | char *name; | |
3771 | int len; | |
3772 | symbolS *sym; | |
3773 | ||
3774 | name = demand_copy_C_string (&len); | |
3775 | sym = symbol_make (name); | |
3776 | S_SET_SEGMENT (sym, ppc_coff_debug_section); | |
809ffe0d | 3777 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3778 | S_SET_STORAGE_CLASS (sym, C_BCOMM); |
3779 | S_SET_VALUE (sym, 0); | |
809ffe0d | 3780 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3781 | |
3782 | ppc_frob_label (sym); | |
3783 | ||
3784 | demand_empty_rest_of_line (); | |
3785 | } | |
3786 | ||
3787 | /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */ | |
3788 | ||
3789 | static void | |
3790 | ppc_ec (ignore) | |
5480ccf3 | 3791 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3792 | { |
3793 | symbolS *sym; | |
3794 | ||
3795 | sym = symbol_make (".ec"); | |
3796 | S_SET_SEGMENT (sym, ppc_coff_debug_section); | |
809ffe0d | 3797 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3798 | S_SET_STORAGE_CLASS (sym, C_ECOMM); |
3799 | S_SET_VALUE (sym, 0); | |
809ffe0d | 3800 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3801 | |
3802 | ppc_frob_label (sym); | |
3803 | ||
3804 | demand_empty_rest_of_line (); | |
3805 | } | |
3806 | ||
3807 | /* The .toc pseudo-op. Switch to the .toc subsegment. */ | |
3808 | ||
3809 | static void | |
3810 | ppc_toc (ignore) | |
5480ccf3 | 3811 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3812 | { |
3813 | if (ppc_toc_csect != (symbolS *) NULL) | |
809ffe0d | 3814 | subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg); |
252b5132 RH |
3815 | else |
3816 | { | |
3817 | subsegT subseg; | |
3818 | symbolS *sym; | |
3819 | symbolS *list; | |
81d4177b | 3820 | |
252b5132 RH |
3821 | subseg = ppc_data_subsegment; |
3822 | ++ppc_data_subsegment; | |
3823 | ||
3824 | subseg_new (segment_name (data_section), subseg); | |
3825 | ppc_toc_frag = frag_now; | |
3826 | ||
3827 | sym = symbol_find_or_make ("TOC[TC0]"); | |
809ffe0d | 3828 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3829 | S_SET_SEGMENT (sym, data_section); |
3830 | S_SET_VALUE (sym, (valueT) frag_now_fix ()); | |
809ffe0d ILT |
3831 | symbol_get_tc (sym)->subseg = subseg; |
3832 | symbol_get_tc (sym)->output = 1; | |
3833 | symbol_get_tc (sym)->within = sym; | |
252b5132 RH |
3834 | |
3835 | ppc_toc_csect = sym; | |
81d4177b | 3836 | |
252b5132 | 3837 | for (list = ppc_data_csects; |
809ffe0d ILT |
3838 | symbol_get_tc (list)->next != (symbolS *) NULL; |
3839 | list = symbol_get_tc (list)->next) | |
252b5132 | 3840 | ; |
809ffe0d | 3841 | symbol_get_tc (list)->next = sym; |
252b5132 RH |
3842 | |
3843 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
809ffe0d ILT |
3844 | symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP, |
3845 | &symbol_lastP); | |
252b5132 RH |
3846 | } |
3847 | ||
3848 | ppc_current_csect = ppc_toc_csect; | |
3849 | ||
3850 | demand_empty_rest_of_line (); | |
3851 | } | |
3852 | ||
3853 | /* The AIX assembler automatically aligns the operands of a .long or | |
3854 | .short pseudo-op, and we want to be compatible. */ | |
3855 | ||
3856 | static void | |
3857 | ppc_xcoff_cons (log_size) | |
3858 | int log_size; | |
3859 | { | |
3860 | frag_align (log_size, 0, 0); | |
3861 | record_alignment (now_seg, log_size); | |
3862 | cons (1 << log_size); | |
3863 | } | |
3864 | ||
3865 | static void | |
3866 | ppc_vbyte (dummy) | |
5480ccf3 | 3867 | int dummy ATTRIBUTE_UNUSED; |
252b5132 RH |
3868 | { |
3869 | expressionS exp; | |
3870 | int byte_count; | |
3871 | ||
3872 | (void) expression (&exp); | |
3873 | ||
3874 | if (exp.X_op != O_constant) | |
3875 | { | |
3876 | as_bad (_("non-constant byte count")); | |
3877 | return; | |
3878 | } | |
3879 | ||
3880 | byte_count = exp.X_add_number; | |
3881 | ||
3882 | if (*input_line_pointer != ',') | |
3883 | { | |
3884 | as_bad (_("missing value")); | |
3885 | return; | |
3886 | } | |
3887 | ||
3888 | ++input_line_pointer; | |
3889 | cons (byte_count); | |
3890 | } | |
3891 | ||
3892 | #endif /* OBJ_XCOFF */ | |
0baf16f2 | 3893 | #if defined (OBJ_XCOFF) || defined (OBJ_ELF) |
252b5132 RH |
3894 | \f |
3895 | /* The .tc pseudo-op. This is used when generating either XCOFF or | |
3896 | ELF. This takes two or more arguments. | |
3897 | ||
3898 | When generating XCOFF output, the first argument is the name to | |
3899 | give to this location in the toc; this will be a symbol with class | |
0baf16f2 | 3900 | TC. The rest of the arguments are N-byte values to actually put at |
252b5132 | 3901 | this location in the TOC; often there is just one more argument, a |
1049f94e | 3902 | relocatable symbol reference. The size of the value to store |
0baf16f2 AM |
3903 | depends on target word size. A 32-bit target uses 4-byte values, a |
3904 | 64-bit target uses 8-byte values. | |
252b5132 RH |
3905 | |
3906 | When not generating XCOFF output, the arguments are the same, but | |
3907 | the first argument is simply ignored. */ | |
3908 | ||
3909 | static void | |
3910 | ppc_tc (ignore) | |
92161534 | 3911 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3912 | { |
3913 | #ifdef OBJ_XCOFF | |
3914 | ||
3915 | /* Define the TOC symbol name. */ | |
3916 | { | |
3917 | char *name; | |
3918 | char endc; | |
3919 | symbolS *sym; | |
3920 | ||
3921 | if (ppc_toc_csect == (symbolS *) NULL | |
3922 | || ppc_toc_csect != ppc_current_csect) | |
3923 | { | |
3924 | as_bad (_(".tc not in .toc section")); | |
3925 | ignore_rest_of_line (); | |
3926 | return; | |
3927 | } | |
3928 | ||
3929 | name = input_line_pointer; | |
3930 | endc = get_symbol_end (); | |
3931 | ||
3932 | sym = symbol_find_or_make (name); | |
3933 | ||
3934 | *input_line_pointer = endc; | |
3935 | ||
3936 | if (S_IS_DEFINED (sym)) | |
3937 | { | |
3938 | symbolS *label; | |
3939 | ||
809ffe0d ILT |
3940 | label = symbol_get_tc (ppc_current_csect)->within; |
3941 | if (symbol_get_tc (label)->class != XMC_TC0) | |
252b5132 RH |
3942 | { |
3943 | as_bad (_(".tc with no label")); | |
3944 | ignore_rest_of_line (); | |
3945 | return; | |
3946 | } | |
3947 | ||
3948 | S_SET_SEGMENT (label, S_GET_SEGMENT (sym)); | |
809ffe0d | 3949 | symbol_set_frag (label, symbol_get_frag (sym)); |
252b5132 RH |
3950 | S_SET_VALUE (label, S_GET_VALUE (sym)); |
3951 | ||
3952 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
3953 | ++input_line_pointer; | |
3954 | ||
3955 | return; | |
3956 | } | |
3957 | ||
3958 | S_SET_SEGMENT (sym, now_seg); | |
809ffe0d | 3959 | symbol_set_frag (sym, frag_now); |
252b5132 | 3960 | S_SET_VALUE (sym, (valueT) frag_now_fix ()); |
809ffe0d ILT |
3961 | symbol_get_tc (sym)->class = XMC_TC; |
3962 | symbol_get_tc (sym)->output = 1; | |
252b5132 RH |
3963 | |
3964 | ppc_frob_label (sym); | |
3965 | } | |
3966 | ||
0baf16f2 AM |
3967 | #endif /* OBJ_XCOFF */ |
3968 | #ifdef OBJ_ELF | |
9c7977b3 | 3969 | int align; |
252b5132 RH |
3970 | |
3971 | /* Skip the TOC symbol name. */ | |
3972 | while (is_part_of_name (*input_line_pointer) | |
3973 | || *input_line_pointer == '[' | |
3974 | || *input_line_pointer == ']' | |
3975 | || *input_line_pointer == '{' | |
3976 | || *input_line_pointer == '}') | |
3977 | ++input_line_pointer; | |
3978 | ||
0baf16f2 | 3979 | /* Align to a four/eight byte boundary. */ |
2b3c4602 | 3980 | align = ppc_obj64 ? 3 : 2; |
9c7977b3 AM |
3981 | frag_align (align, 0, 0); |
3982 | record_alignment (now_seg, align); | |
0baf16f2 | 3983 | #endif /* OBJ_ELF */ |
252b5132 RH |
3984 | |
3985 | if (*input_line_pointer != ',') | |
3986 | demand_empty_rest_of_line (); | |
3987 | else | |
3988 | { | |
3989 | ++input_line_pointer; | |
2b3c4602 | 3990 | cons (ppc_obj64 ? 8 : 4); |
252b5132 RH |
3991 | } |
3992 | } | |
0baf16f2 AM |
3993 | |
3994 | /* Pseudo-op .machine. */ | |
0baf16f2 AM |
3995 | |
3996 | static void | |
3997 | ppc_machine (ignore) | |
3998 | int ignore ATTRIBUTE_UNUSED; | |
3999 | { | |
69c040df AM |
4000 | char *cpu_string; |
4001 | #define MAX_HISTORY 100 | |
4002 | static unsigned long *cpu_history; | |
4003 | static int curr_hist; | |
4004 | ||
4005 | SKIP_WHITESPACE (); | |
4006 | ||
4007 | if (*input_line_pointer == '"') | |
4008 | { | |
4009 | int len; | |
4010 | cpu_string = demand_copy_C_string (&len); | |
4011 | } | |
4012 | else | |
4013 | { | |
4014 | char c; | |
4015 | cpu_string = input_line_pointer; | |
4016 | c = get_symbol_end (); | |
4017 | cpu_string = xstrdup (cpu_string); | |
4018 | *input_line_pointer = c; | |
4019 | } | |
4020 | ||
4021 | if (cpu_string != NULL) | |
4022 | { | |
4023 | unsigned long old_cpu = ppc_cpu; | |
4024 | char *p; | |
4025 | ||
4026 | for (p = cpu_string; *p != 0; p++) | |
4027 | *p = TOLOWER (*p); | |
4028 | ||
4029 | if (strcmp (cpu_string, "push") == 0) | |
4030 | { | |
4031 | if (cpu_history == NULL) | |
4032 | cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history)); | |
4033 | ||
4034 | if (curr_hist >= MAX_HISTORY) | |
4035 | as_bad (_(".machine stack overflow")); | |
4036 | else | |
4037 | cpu_history[curr_hist++] = ppc_cpu; | |
4038 | } | |
4039 | else if (strcmp (cpu_string, "pop") == 0) | |
4040 | { | |
4041 | if (curr_hist <= 0) | |
4042 | as_bad (_(".machine stack underflow")); | |
4043 | else | |
4044 | ppc_cpu = cpu_history[--curr_hist]; | |
4045 | } | |
4046 | else if (parse_cpu (cpu_string)) | |
4047 | ; | |
4048 | else | |
4049 | as_bad (_("invalid machine `%s'"), cpu_string); | |
4050 | ||
4051 | if (ppc_cpu != old_cpu) | |
4052 | ppc_setup_opcodes (); | |
4053 | } | |
4054 | ||
4055 | demand_empty_rest_of_line (); | |
0baf16f2 AM |
4056 | } |
4057 | ||
4058 | /* See whether a symbol is in the TOC section. */ | |
4059 | ||
4060 | static int | |
4061 | ppc_is_toc_sym (sym) | |
4062 | symbolS *sym; | |
4063 | { | |
4064 | #ifdef OBJ_XCOFF | |
4065 | return symbol_get_tc (sym)->class == XMC_TC; | |
4066 | #endif | |
4067 | #ifdef OBJ_ELF | |
4068 | const char *sname = segment_name (S_GET_SEGMENT (sym)); | |
2b3c4602 | 4069 | if (ppc_obj64) |
0baf16f2 AM |
4070 | return strcmp (sname, ".toc") == 0; |
4071 | else | |
4072 | return strcmp (sname, ".got") == 0; | |
4073 | #endif | |
4074 | } | |
4075 | #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */ | |
252b5132 RH |
4076 | \f |
4077 | #ifdef TE_PE | |
4078 | ||
99a814a1 | 4079 | /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */ |
252b5132 RH |
4080 | |
4081 | /* Set the current section. */ | |
4082 | static void | |
4083 | ppc_set_current_section (new) | |
4084 | segT new; | |
4085 | { | |
4086 | ppc_previous_section = ppc_current_section; | |
4087 | ppc_current_section = new; | |
4088 | } | |
4089 | ||
4090 | /* pseudo-op: .previous | |
4091 | behaviour: toggles the current section with the previous section. | |
4092 | errors: None | |
99a814a1 AM |
4093 | warnings: "No previous section" */ |
4094 | ||
252b5132 | 4095 | static void |
99a814a1 | 4096 | ppc_previous (ignore) |
5480ccf3 | 4097 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4098 | { |
4099 | symbolS *tmp; | |
4100 | ||
81d4177b | 4101 | if (ppc_previous_section == NULL) |
252b5132 | 4102 | { |
99a814a1 | 4103 | as_warn (_("No previous section to return to. Directive ignored.")); |
252b5132 RH |
4104 | return; |
4105 | } | |
4106 | ||
99a814a1 | 4107 | subseg_set (ppc_previous_section, 0); |
252b5132 | 4108 | |
99a814a1 | 4109 | ppc_set_current_section (ppc_previous_section); |
252b5132 RH |
4110 | } |
4111 | ||
4112 | /* pseudo-op: .pdata | |
4113 | behaviour: predefined read only data section | |
b34976b6 | 4114 | double word aligned |
252b5132 RH |
4115 | errors: None |
4116 | warnings: None | |
4117 | initial: .section .pdata "adr3" | |
b34976b6 | 4118 | a - don't know -- maybe a misprint |
252b5132 RH |
4119 | d - initialized data |
4120 | r - readable | |
4121 | 3 - double word aligned (that would be 4 byte boundary) | |
4122 | ||
4123 | commentary: | |
4124 | Tag index tables (also known as the function table) for exception | |
99a814a1 | 4125 | handling, debugging, etc. */ |
252b5132 | 4126 | |
252b5132 | 4127 | static void |
99a814a1 | 4128 | ppc_pdata (ignore) |
5480ccf3 | 4129 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 4130 | { |
81d4177b | 4131 | if (pdata_section == 0) |
252b5132 RH |
4132 | { |
4133 | pdata_section = subseg_new (".pdata", 0); | |
81d4177b | 4134 | |
252b5132 RH |
4135 | bfd_set_section_flags (stdoutput, pdata_section, |
4136 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
4137 | | SEC_READONLY | SEC_DATA )); | |
81d4177b | 4138 | |
252b5132 RH |
4139 | bfd_set_section_alignment (stdoutput, pdata_section, 2); |
4140 | } | |
4141 | else | |
4142 | { | |
99a814a1 | 4143 | pdata_section = subseg_new (".pdata", 0); |
252b5132 | 4144 | } |
99a814a1 | 4145 | ppc_set_current_section (pdata_section); |
252b5132 RH |
4146 | } |
4147 | ||
4148 | /* pseudo-op: .ydata | |
4149 | behaviour: predefined read only data section | |
b34976b6 | 4150 | double word aligned |
252b5132 RH |
4151 | errors: None |
4152 | warnings: None | |
4153 | initial: .section .ydata "drw3" | |
b34976b6 | 4154 | a - don't know -- maybe a misprint |
252b5132 RH |
4155 | d - initialized data |
4156 | r - readable | |
4157 | 3 - double word aligned (that would be 4 byte boundary) | |
4158 | commentary: | |
4159 | Tag tables (also known as the scope table) for exception handling, | |
99a814a1 AM |
4160 | debugging, etc. */ |
4161 | ||
252b5132 | 4162 | static void |
99a814a1 | 4163 | ppc_ydata (ignore) |
5480ccf3 | 4164 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 4165 | { |
81d4177b | 4166 | if (ydata_section == 0) |
252b5132 RH |
4167 | { |
4168 | ydata_section = subseg_new (".ydata", 0); | |
4169 | bfd_set_section_flags (stdoutput, ydata_section, | |
99a814a1 AM |
4170 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
4171 | | SEC_READONLY | SEC_DATA )); | |
252b5132 RH |
4172 | |
4173 | bfd_set_section_alignment (stdoutput, ydata_section, 3); | |
4174 | } | |
4175 | else | |
4176 | { | |
4177 | ydata_section = subseg_new (".ydata", 0); | |
4178 | } | |
99a814a1 | 4179 | ppc_set_current_section (ydata_section); |
252b5132 RH |
4180 | } |
4181 | ||
4182 | /* pseudo-op: .reldata | |
4183 | behaviour: predefined read write data section | |
b34976b6 | 4184 | double word aligned (4-byte) |
252b5132 RH |
4185 | FIXME: relocation is applied to it |
4186 | FIXME: what's the difference between this and .data? | |
4187 | errors: None | |
4188 | warnings: None | |
4189 | initial: .section .reldata "drw3" | |
4190 | d - initialized data | |
4191 | r - readable | |
4192 | w - writeable | |
4193 | 3 - double word aligned (that would be 8 byte boundary) | |
4194 | ||
4195 | commentary: | |
4196 | Like .data, but intended to hold data subject to relocation, such as | |
99a814a1 AM |
4197 | function descriptors, etc. */ |
4198 | ||
252b5132 | 4199 | static void |
99a814a1 | 4200 | ppc_reldata (ignore) |
5480ccf3 | 4201 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4202 | { |
4203 | if (reldata_section == 0) | |
4204 | { | |
4205 | reldata_section = subseg_new (".reldata", 0); | |
4206 | ||
4207 | bfd_set_section_flags (stdoutput, reldata_section, | |
99a814a1 AM |
4208 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
4209 | | SEC_DATA)); | |
252b5132 RH |
4210 | |
4211 | bfd_set_section_alignment (stdoutput, reldata_section, 2); | |
4212 | } | |
4213 | else | |
4214 | { | |
4215 | reldata_section = subseg_new (".reldata", 0); | |
4216 | } | |
99a814a1 | 4217 | ppc_set_current_section (reldata_section); |
252b5132 RH |
4218 | } |
4219 | ||
4220 | /* pseudo-op: .rdata | |
4221 | behaviour: predefined read only data section | |
b34976b6 | 4222 | double word aligned |
252b5132 RH |
4223 | errors: None |
4224 | warnings: None | |
4225 | initial: .section .rdata "dr3" | |
4226 | d - initialized data | |
4227 | r - readable | |
99a814a1 AM |
4228 | 3 - double word aligned (that would be 4 byte boundary) */ |
4229 | ||
252b5132 | 4230 | static void |
99a814a1 | 4231 | ppc_rdata (ignore) |
5480ccf3 | 4232 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4233 | { |
4234 | if (rdata_section == 0) | |
4235 | { | |
4236 | rdata_section = subseg_new (".rdata", 0); | |
4237 | bfd_set_section_flags (stdoutput, rdata_section, | |
4238 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
4239 | | SEC_READONLY | SEC_DATA )); | |
4240 | ||
4241 | bfd_set_section_alignment (stdoutput, rdata_section, 2); | |
4242 | } | |
4243 | else | |
4244 | { | |
4245 | rdata_section = subseg_new (".rdata", 0); | |
4246 | } | |
99a814a1 | 4247 | ppc_set_current_section (rdata_section); |
252b5132 RH |
4248 | } |
4249 | ||
4250 | /* pseudo-op: .ualong | |
81d4177b | 4251 | behaviour: much like .int, with the exception that no alignment is |
b34976b6 | 4252 | performed. |
252b5132 RH |
4253 | FIXME: test the alignment statement |
4254 | errors: None | |
99a814a1 AM |
4255 | warnings: None */ |
4256 | ||
252b5132 | 4257 | static void |
99a814a1 | 4258 | ppc_ualong (ignore) |
5480ccf3 | 4259 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 4260 | { |
99a814a1 AM |
4261 | /* Try for long. */ |
4262 | cons (4); | |
252b5132 RH |
4263 | } |
4264 | ||
4265 | /* pseudo-op: .znop <symbol name> | |
4266 | behaviour: Issue a nop instruction | |
b34976b6 | 4267 | Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using |
252b5132 RH |
4268 | the supplied symbol name. |
4269 | errors: None | |
99a814a1 AM |
4270 | warnings: Missing symbol name */ |
4271 | ||
252b5132 | 4272 | static void |
99a814a1 | 4273 | ppc_znop (ignore) |
5480ccf3 | 4274 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4275 | { |
4276 | unsigned long insn; | |
4277 | const struct powerpc_opcode *opcode; | |
4278 | expressionS ex; | |
4279 | char *f; | |
252b5132 | 4280 | symbolS *sym; |
252b5132 RH |
4281 | char *symbol_name; |
4282 | char c; | |
4283 | char *name; | |
4284 | unsigned int exp; | |
4285 | flagword flags; | |
4286 | asection *sec; | |
4287 | ||
99a814a1 | 4288 | /* Strip out the symbol name. */ |
252b5132 RH |
4289 | symbol_name = input_line_pointer; |
4290 | c = get_symbol_end (); | |
4291 | ||
4292 | name = xmalloc (input_line_pointer - symbol_name + 1); | |
4293 | strcpy (name, symbol_name); | |
4294 | ||
4295 | sym = symbol_find_or_make (name); | |
4296 | ||
4297 | *input_line_pointer = c; | |
4298 | ||
4299 | SKIP_WHITESPACE (); | |
4300 | ||
4301 | /* Look up the opcode in the hash table. */ | |
4302 | opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop"); | |
4303 | ||
99a814a1 | 4304 | /* Stick in the nop. */ |
252b5132 RH |
4305 | insn = opcode->opcode; |
4306 | ||
4307 | /* Write out the instruction. */ | |
4308 | f = frag_more (4); | |
4309 | md_number_to_chars (f, insn, 4); | |
4310 | fix_new (frag_now, | |
4311 | f - frag_now->fr_literal, | |
4312 | 4, | |
4313 | sym, | |
4314 | 0, | |
4315 | 0, | |
4316 | BFD_RELOC_16_GOT_PCREL); | |
4317 | ||
4318 | } | |
4319 | ||
81d4177b KH |
4320 | /* pseudo-op: |
4321 | behaviour: | |
4322 | errors: | |
99a814a1 AM |
4323 | warnings: */ |
4324 | ||
252b5132 | 4325 | static void |
99a814a1 | 4326 | ppc_pe_comm (lcomm) |
252b5132 RH |
4327 | int lcomm; |
4328 | { | |
4329 | register char *name; | |
4330 | register char c; | |
4331 | register char *p; | |
4332 | offsetT temp; | |
4333 | register symbolS *symbolP; | |
4334 | offsetT align; | |
4335 | ||
4336 | name = input_line_pointer; | |
4337 | c = get_symbol_end (); | |
4338 | ||
99a814a1 | 4339 | /* just after name is now '\0'. */ |
252b5132 RH |
4340 | p = input_line_pointer; |
4341 | *p = c; | |
4342 | SKIP_WHITESPACE (); | |
4343 | if (*input_line_pointer != ',') | |
4344 | { | |
4345 | as_bad (_("Expected comma after symbol-name: rest of line ignored.")); | |
4346 | ignore_rest_of_line (); | |
4347 | return; | |
4348 | } | |
4349 | ||
4350 | input_line_pointer++; /* skip ',' */ | |
4351 | if ((temp = get_absolute_expression ()) < 0) | |
4352 | { | |
4353 | as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp); | |
4354 | ignore_rest_of_line (); | |
4355 | return; | |
4356 | } | |
4357 | ||
4358 | if (! lcomm) | |
4359 | { | |
4360 | /* The third argument to .comm is the alignment. */ | |
4361 | if (*input_line_pointer != ',') | |
4362 | align = 3; | |
4363 | else | |
4364 | { | |
4365 | ++input_line_pointer; | |
4366 | align = get_absolute_expression (); | |
4367 | if (align <= 0) | |
4368 | { | |
4369 | as_warn (_("ignoring bad alignment")); | |
4370 | align = 3; | |
4371 | } | |
4372 | } | |
4373 | } | |
4374 | ||
4375 | *p = 0; | |
4376 | symbolP = symbol_find_or_make (name); | |
4377 | ||
4378 | *p = c; | |
4379 | if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) | |
4380 | { | |
4381 | as_bad (_("Ignoring attempt to re-define symbol `%s'."), | |
4382 | S_GET_NAME (symbolP)); | |
4383 | ignore_rest_of_line (); | |
4384 | return; | |
4385 | } | |
4386 | ||
4387 | if (S_GET_VALUE (symbolP)) | |
4388 | { | |
4389 | if (S_GET_VALUE (symbolP) != (valueT) temp) | |
4390 | as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."), | |
4391 | S_GET_NAME (symbolP), | |
4392 | (long) S_GET_VALUE (symbolP), | |
4393 | (long) temp); | |
4394 | } | |
4395 | else | |
4396 | { | |
4397 | S_SET_VALUE (symbolP, (valueT) temp); | |
4398 | S_SET_EXTERNAL (symbolP); | |
4399 | } | |
4400 | ||
4401 | demand_empty_rest_of_line (); | |
4402 | } | |
4403 | ||
4404 | /* | |
4405 | * implement the .section pseudo op: | |
4406 | * .section name {, "flags"} | |
4407 | * ^ ^ | |
4408 | * | +--- optional flags: 'b' for bss | |
4409 | * | 'i' for info | |
4410 | * +-- section name 'l' for lib | |
4411 | * 'n' for noload | |
4412 | * 'o' for over | |
4413 | * 'w' for data | |
4414 | * 'd' (apparently m88k for data) | |
4415 | * 'x' for text | |
4416 | * But if the argument is not a quoted string, treat it as a | |
4417 | * subsegment number. | |
4418 | * | |
4419 | * FIXME: this is a copy of the section processing from obj-coff.c, with | |
4420 | * additions/changes for the moto-pas assembler support. There are three | |
4421 | * categories: | |
4422 | * | |
81d4177b | 4423 | * FIXME: I just noticed this. This doesn't work at all really. It it |
252b5132 RH |
4424 | * setting bits that bfd probably neither understands or uses. The |
4425 | * correct approach (?) will have to incorporate extra fields attached | |
4426 | * to the section to hold the system specific stuff. (krk) | |
4427 | * | |
4428 | * Section Contents: | |
4429 | * 'a' - unknown - referred to in documentation, but no definition supplied | |
4430 | * 'c' - section has code | |
4431 | * 'd' - section has initialized data | |
4432 | * 'u' - section has uninitialized data | |
4433 | * 'i' - section contains directives (info) | |
4434 | * 'n' - section can be discarded | |
4435 | * 'R' - remove section at link time | |
4436 | * | |
4437 | * Section Protection: | |
4438 | * 'r' - section is readable | |
4439 | * 'w' - section is writeable | |
4440 | * 'x' - section is executable | |
4441 | * 's' - section is sharable | |
4442 | * | |
4443 | * Section Alignment: | |
4444 | * '0' - align to byte boundary | |
4445 | * '1' - align to halfword undary | |
4446 | * '2' - align to word boundary | |
4447 | * '3' - align to doubleword boundary | |
4448 | * '4' - align to quadword boundary | |
4449 | * '5' - align to 32 byte boundary | |
4450 | * '6' - align to 64 byte boundary | |
4451 | * | |
4452 | */ | |
4453 | ||
4454 | void | |
4455 | ppc_pe_section (ignore) | |
5480ccf3 | 4456 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 4457 | { |
99a814a1 | 4458 | /* Strip out the section name. */ |
252b5132 RH |
4459 | char *section_name; |
4460 | char c; | |
4461 | char *name; | |
4462 | unsigned int exp; | |
4463 | flagword flags; | |
4464 | segT sec; | |
4465 | int align; | |
4466 | ||
4467 | section_name = input_line_pointer; | |
4468 | c = get_symbol_end (); | |
4469 | ||
4470 | name = xmalloc (input_line_pointer - section_name + 1); | |
4471 | strcpy (name, section_name); | |
4472 | ||
4473 | *input_line_pointer = c; | |
4474 | ||
4475 | SKIP_WHITESPACE (); | |
4476 | ||
4477 | exp = 0; | |
4478 | flags = SEC_NO_FLAGS; | |
4479 | ||
4480 | if (strcmp (name, ".idata$2") == 0) | |
4481 | { | |
4482 | align = 0; | |
4483 | } | |
4484 | else if (strcmp (name, ".idata$3") == 0) | |
4485 | { | |
4486 | align = 0; | |
4487 | } | |
4488 | else if (strcmp (name, ".idata$4") == 0) | |
4489 | { | |
4490 | align = 2; | |
4491 | } | |
4492 | else if (strcmp (name, ".idata$5") == 0) | |
4493 | { | |
4494 | align = 2; | |
4495 | } | |
4496 | else if (strcmp (name, ".idata$6") == 0) | |
4497 | { | |
4498 | align = 1; | |
4499 | } | |
4500 | else | |
99a814a1 AM |
4501 | /* Default alignment to 16 byte boundary. */ |
4502 | align = 4; | |
252b5132 RH |
4503 | |
4504 | if (*input_line_pointer == ',') | |
4505 | { | |
4506 | ++input_line_pointer; | |
4507 | SKIP_WHITESPACE (); | |
4508 | if (*input_line_pointer != '"') | |
4509 | exp = get_absolute_expression (); | |
4510 | else | |
4511 | { | |
4512 | ++input_line_pointer; | |
4513 | while (*input_line_pointer != '"' | |
4514 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
4515 | { | |
4516 | switch (*input_line_pointer) | |
4517 | { | |
4518 | /* Section Contents */ | |
4519 | case 'a': /* unknown */ | |
4520 | as_bad (_("Unsupported section attribute -- 'a'")); | |
4521 | break; | |
4522 | case 'c': /* code section */ | |
81d4177b | 4523 | flags |= SEC_CODE; |
252b5132 RH |
4524 | break; |
4525 | case 'd': /* section has initialized data */ | |
4526 | flags |= SEC_DATA; | |
4527 | break; | |
4528 | case 'u': /* section has uninitialized data */ | |
4529 | /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA | |
4530 | in winnt.h */ | |
4531 | flags |= SEC_ROM; | |
4532 | break; | |
4533 | case 'i': /* section contains directives (info) */ | |
4534 | /* FIXME: This is IMAGE_SCN_LNK_INFO | |
4535 | in winnt.h */ | |
4536 | flags |= SEC_HAS_CONTENTS; | |
4537 | break; | |
4538 | case 'n': /* section can be discarded */ | |
81d4177b | 4539 | flags &=~ SEC_LOAD; |
252b5132 RH |
4540 | break; |
4541 | case 'R': /* Remove section at link time */ | |
4542 | flags |= SEC_NEVER_LOAD; | |
4543 | break; | |
4544 | ||
4545 | /* Section Protection */ | |
4546 | case 'r': /* section is readable */ | |
4547 | flags |= IMAGE_SCN_MEM_READ; | |
4548 | break; | |
4549 | case 'w': /* section is writeable */ | |
4550 | flags |= IMAGE_SCN_MEM_WRITE; | |
4551 | break; | |
4552 | case 'x': /* section is executable */ | |
4553 | flags |= IMAGE_SCN_MEM_EXECUTE; | |
4554 | break; | |
4555 | case 's': /* section is sharable */ | |
4556 | flags |= IMAGE_SCN_MEM_SHARED; | |
4557 | break; | |
4558 | ||
4559 | /* Section Alignment */ | |
4560 | case '0': /* align to byte boundary */ | |
4561 | flags |= IMAGE_SCN_ALIGN_1BYTES; | |
4562 | align = 0; | |
4563 | break; | |
4564 | case '1': /* align to halfword boundary */ | |
4565 | flags |= IMAGE_SCN_ALIGN_2BYTES; | |
4566 | align = 1; | |
4567 | break; | |
4568 | case '2': /* align to word boundary */ | |
4569 | flags |= IMAGE_SCN_ALIGN_4BYTES; | |
4570 | align = 2; | |
4571 | break; | |
4572 | case '3': /* align to doubleword boundary */ | |
4573 | flags |= IMAGE_SCN_ALIGN_8BYTES; | |
4574 | align = 3; | |
4575 | break; | |
4576 | case '4': /* align to quadword boundary */ | |
4577 | flags |= IMAGE_SCN_ALIGN_16BYTES; | |
4578 | align = 4; | |
4579 | break; | |
4580 | case '5': /* align to 32 byte boundary */ | |
4581 | flags |= IMAGE_SCN_ALIGN_32BYTES; | |
4582 | align = 5; | |
4583 | break; | |
4584 | case '6': /* align to 64 byte boundary */ | |
4585 | flags |= IMAGE_SCN_ALIGN_64BYTES; | |
4586 | align = 6; | |
4587 | break; | |
4588 | ||
4589 | default: | |
99a814a1 AM |
4590 | as_bad (_("unknown section attribute '%c'"), |
4591 | *input_line_pointer); | |
252b5132 RH |
4592 | break; |
4593 | } | |
4594 | ++input_line_pointer; | |
4595 | } | |
4596 | if (*input_line_pointer == '"') | |
4597 | ++input_line_pointer; | |
4598 | } | |
4599 | } | |
4600 | ||
4601 | sec = subseg_new (name, (subsegT) exp); | |
4602 | ||
99a814a1 | 4603 | ppc_set_current_section (sec); |
252b5132 RH |
4604 | |
4605 | if (flags != SEC_NO_FLAGS) | |
4606 | { | |
4607 | if (! bfd_set_section_flags (stdoutput, sec, flags)) | |
4608 | as_bad (_("error setting flags for \"%s\": %s"), | |
4609 | bfd_section_name (stdoutput, sec), | |
4610 | bfd_errmsg (bfd_get_error ())); | |
4611 | } | |
4612 | ||
99a814a1 | 4613 | bfd_set_section_alignment (stdoutput, sec, align); |
252b5132 RH |
4614 | |
4615 | } | |
4616 | ||
4617 | static void | |
4618 | ppc_pe_function (ignore) | |
5480ccf3 | 4619 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4620 | { |
4621 | char *name; | |
4622 | char endc; | |
4623 | symbolS *ext_sym; | |
4624 | ||
4625 | name = input_line_pointer; | |
4626 | endc = get_symbol_end (); | |
4627 | ||
4628 | ext_sym = symbol_find_or_make (name); | |
4629 | ||
4630 | *input_line_pointer = endc; | |
4631 | ||
4632 | S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT); | |
4633 | SF_SET_FUNCTION (ext_sym); | |
4634 | SF_SET_PROCESS (ext_sym); | |
4635 | coff_add_linesym (ext_sym); | |
4636 | ||
4637 | demand_empty_rest_of_line (); | |
4638 | } | |
4639 | ||
4640 | static void | |
4641 | ppc_pe_tocd (ignore) | |
5480ccf3 | 4642 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4643 | { |
4644 | if (tocdata_section == 0) | |
4645 | { | |
4646 | tocdata_section = subseg_new (".tocd", 0); | |
99a814a1 | 4647 | /* FIXME: section flags won't work. */ |
252b5132 RH |
4648 | bfd_set_section_flags (stdoutput, tocdata_section, |
4649 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
99a814a1 | 4650 | | SEC_READONLY | SEC_DATA)); |
252b5132 RH |
4651 | |
4652 | bfd_set_section_alignment (stdoutput, tocdata_section, 2); | |
4653 | } | |
4654 | else | |
4655 | { | |
4656 | rdata_section = subseg_new (".tocd", 0); | |
4657 | } | |
4658 | ||
99a814a1 | 4659 | ppc_set_current_section (tocdata_section); |
252b5132 RH |
4660 | |
4661 | demand_empty_rest_of_line (); | |
4662 | } | |
4663 | ||
4664 | /* Don't adjust TOC relocs to use the section symbol. */ | |
4665 | ||
4666 | int | |
4667 | ppc_pe_fix_adjustable (fix) | |
4668 | fixS *fix; | |
4669 | { | |
4670 | return fix->fx_r_type != BFD_RELOC_PPC_TOC16; | |
4671 | } | |
4672 | ||
4673 | #endif | |
4674 | \f | |
4675 | #ifdef OBJ_XCOFF | |
4676 | ||
4677 | /* XCOFF specific symbol and file handling. */ | |
4678 | ||
4679 | /* Canonicalize the symbol name. We use the to force the suffix, if | |
4680 | any, to use square brackets, and to be in upper case. */ | |
4681 | ||
4682 | char * | |
4683 | ppc_canonicalize_symbol_name (name) | |
4684 | char *name; | |
4685 | { | |
4686 | char *s; | |
4687 | ||
4688 | if (ppc_stab_symbol) | |
4689 | return name; | |
4690 | ||
4691 | for (s = name; *s != '\0' && *s != '{' && *s != '['; s++) | |
4692 | ; | |
4693 | if (*s != '\0') | |
4694 | { | |
4695 | char brac; | |
4696 | ||
4697 | if (*s == '[') | |
4698 | brac = ']'; | |
4699 | else | |
4700 | { | |
4701 | *s = '['; | |
4702 | brac = '}'; | |
4703 | } | |
4704 | ||
4705 | for (s++; *s != '\0' && *s != brac; s++) | |
3882b010 | 4706 | *s = TOUPPER (*s); |
252b5132 RH |
4707 | |
4708 | if (*s == '\0' || s[1] != '\0') | |
4709 | as_bad (_("bad symbol suffix")); | |
4710 | ||
4711 | *s = ']'; | |
4712 | } | |
4713 | ||
4714 | return name; | |
4715 | } | |
4716 | ||
4717 | /* Set the class of a symbol based on the suffix, if any. This is | |
4718 | called whenever a new symbol is created. */ | |
4719 | ||
4720 | void | |
4721 | ppc_symbol_new_hook (sym) | |
4722 | symbolS *sym; | |
4723 | { | |
809ffe0d | 4724 | struct ppc_tc_sy *tc; |
252b5132 RH |
4725 | const char *s; |
4726 | ||
809ffe0d ILT |
4727 | tc = symbol_get_tc (sym); |
4728 | tc->next = NULL; | |
4729 | tc->output = 0; | |
4730 | tc->class = -1; | |
4731 | tc->real_name = NULL; | |
4732 | tc->subseg = 0; | |
4733 | tc->align = 0; | |
4734 | tc->size = NULL; | |
4735 | tc->within = NULL; | |
252b5132 RH |
4736 | |
4737 | if (ppc_stab_symbol) | |
4738 | return; | |
4739 | ||
4740 | s = strchr (S_GET_NAME (sym), '['); | |
4741 | if (s == (const char *) NULL) | |
4742 | { | |
4743 | /* There is no suffix. */ | |
4744 | return; | |
4745 | } | |
4746 | ||
4747 | ++s; | |
4748 | ||
4749 | switch (s[0]) | |
4750 | { | |
4751 | case 'B': | |
4752 | if (strcmp (s, "BS]") == 0) | |
809ffe0d | 4753 | tc->class = XMC_BS; |
252b5132 RH |
4754 | break; |
4755 | case 'D': | |
4756 | if (strcmp (s, "DB]") == 0) | |
809ffe0d | 4757 | tc->class = XMC_DB; |
252b5132 | 4758 | else if (strcmp (s, "DS]") == 0) |
809ffe0d | 4759 | tc->class = XMC_DS; |
252b5132 RH |
4760 | break; |
4761 | case 'G': | |
4762 | if (strcmp (s, "GL]") == 0) | |
809ffe0d | 4763 | tc->class = XMC_GL; |
252b5132 RH |
4764 | break; |
4765 | case 'P': | |
4766 | if (strcmp (s, "PR]") == 0) | |
809ffe0d | 4767 | tc->class = XMC_PR; |
252b5132 RH |
4768 | break; |
4769 | case 'R': | |
4770 | if (strcmp (s, "RO]") == 0) | |
809ffe0d | 4771 | tc->class = XMC_RO; |
252b5132 | 4772 | else if (strcmp (s, "RW]") == 0) |
809ffe0d | 4773 | tc->class = XMC_RW; |
252b5132 RH |
4774 | break; |
4775 | case 'S': | |
4776 | if (strcmp (s, "SV]") == 0) | |
809ffe0d | 4777 | tc->class = XMC_SV; |
252b5132 RH |
4778 | break; |
4779 | case 'T': | |
4780 | if (strcmp (s, "TC]") == 0) | |
809ffe0d | 4781 | tc->class = XMC_TC; |
252b5132 | 4782 | else if (strcmp (s, "TI]") == 0) |
809ffe0d | 4783 | tc->class = XMC_TI; |
252b5132 | 4784 | else if (strcmp (s, "TB]") == 0) |
809ffe0d | 4785 | tc->class = XMC_TB; |
252b5132 | 4786 | else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0) |
809ffe0d | 4787 | tc->class = XMC_TC0; |
252b5132 RH |
4788 | break; |
4789 | case 'U': | |
4790 | if (strcmp (s, "UA]") == 0) | |
809ffe0d | 4791 | tc->class = XMC_UA; |
252b5132 | 4792 | else if (strcmp (s, "UC]") == 0) |
809ffe0d | 4793 | tc->class = XMC_UC; |
252b5132 RH |
4794 | break; |
4795 | case 'X': | |
4796 | if (strcmp (s, "XO]") == 0) | |
809ffe0d | 4797 | tc->class = XMC_XO; |
252b5132 RH |
4798 | break; |
4799 | } | |
4800 | ||
809ffe0d | 4801 | if (tc->class == -1) |
252b5132 RH |
4802 | as_bad (_("Unrecognized symbol suffix")); |
4803 | } | |
4804 | ||
4805 | /* Set the class of a label based on where it is defined. This | |
4806 | handles symbols without suffixes. Also, move the symbol so that it | |
4807 | follows the csect symbol. */ | |
4808 | ||
4809 | void | |
4810 | ppc_frob_label (sym) | |
4811 | symbolS *sym; | |
4812 | { | |
4813 | if (ppc_current_csect != (symbolS *) NULL) | |
4814 | { | |
809ffe0d ILT |
4815 | if (symbol_get_tc (sym)->class == -1) |
4816 | symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class; | |
252b5132 RH |
4817 | |
4818 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
809ffe0d ILT |
4819 | symbol_append (sym, symbol_get_tc (ppc_current_csect)->within, |
4820 | &symbol_rootP, &symbol_lastP); | |
4821 | symbol_get_tc (ppc_current_csect)->within = sym; | |
252b5132 RH |
4822 | } |
4823 | } | |
4824 | ||
4825 | /* This variable is set by ppc_frob_symbol if any absolute symbols are | |
4826 | seen. It tells ppc_adjust_symtab whether it needs to look through | |
4827 | the symbols. */ | |
4828 | ||
b34976b6 | 4829 | static bfd_boolean ppc_saw_abs; |
252b5132 RH |
4830 | |
4831 | /* Change the name of a symbol just before writing it out. Set the | |
4832 | real name if the .rename pseudo-op was used. Otherwise, remove any | |
4833 | class suffix. Return 1 if the symbol should not be included in the | |
4834 | symbol table. */ | |
4835 | ||
4836 | int | |
4837 | ppc_frob_symbol (sym) | |
4838 | symbolS *sym; | |
4839 | { | |
4840 | static symbolS *ppc_last_function; | |
4841 | static symbolS *set_end; | |
4842 | ||
4843 | /* Discard symbols that should not be included in the output symbol | |
4844 | table. */ | |
809ffe0d ILT |
4845 | if (! symbol_used_in_reloc_p (sym) |
4846 | && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0 | |
252b5132 | 4847 | || (! S_IS_EXTERNAL (sym) |
809ffe0d | 4848 | && ! symbol_get_tc (sym)->output |
252b5132 RH |
4849 | && S_GET_STORAGE_CLASS (sym) != C_FILE))) |
4850 | return 1; | |
4851 | ||
a161fe53 AM |
4852 | /* This one will disappear anyway. Don't make a csect sym for it. */ |
4853 | if (sym == abs_section_sym) | |
4854 | return 1; | |
4855 | ||
809ffe0d ILT |
4856 | if (symbol_get_tc (sym)->real_name != (char *) NULL) |
4857 | S_SET_NAME (sym, symbol_get_tc (sym)->real_name); | |
252b5132 RH |
4858 | else |
4859 | { | |
4860 | const char *name; | |
4861 | const char *s; | |
4862 | ||
4863 | name = S_GET_NAME (sym); | |
4864 | s = strchr (name, '['); | |
4865 | if (s != (char *) NULL) | |
4866 | { | |
4867 | unsigned int len; | |
4868 | char *snew; | |
4869 | ||
4870 | len = s - name; | |
4871 | snew = xmalloc (len + 1); | |
4872 | memcpy (snew, name, len); | |
4873 | snew[len] = '\0'; | |
4874 | ||
4875 | S_SET_NAME (sym, snew); | |
4876 | } | |
4877 | } | |
4878 | ||
4879 | if (set_end != (symbolS *) NULL) | |
4880 | { | |
4881 | SA_SET_SYM_ENDNDX (set_end, sym); | |
4882 | set_end = NULL; | |
4883 | } | |
4884 | ||
4885 | if (SF_GET_FUNCTION (sym)) | |
4886 | { | |
4887 | if (ppc_last_function != (symbolS *) NULL) | |
4888 | as_bad (_("two .function pseudo-ops with no intervening .ef")); | |
4889 | ppc_last_function = sym; | |
809ffe0d | 4890 | if (symbol_get_tc (sym)->size != (symbolS *) NULL) |
252b5132 | 4891 | { |
6386f3a7 | 4892 | resolve_symbol_value (symbol_get_tc (sym)->size); |
809ffe0d ILT |
4893 | SA_SET_SYM_FSIZE (sym, |
4894 | (long) S_GET_VALUE (symbol_get_tc (sym)->size)); | |
252b5132 RH |
4895 | } |
4896 | } | |
4897 | else if (S_GET_STORAGE_CLASS (sym) == C_FCN | |
4898 | && strcmp (S_GET_NAME (sym), ".ef") == 0) | |
4899 | { | |
4900 | if (ppc_last_function == (symbolS *) NULL) | |
4901 | as_bad (_(".ef with no preceding .function")); | |
4902 | else | |
4903 | { | |
4904 | set_end = ppc_last_function; | |
4905 | ppc_last_function = NULL; | |
4906 | ||
4907 | /* We don't have a C_EFCN symbol, but we need to force the | |
4908 | COFF backend to believe that it has seen one. */ | |
4909 | coff_last_function = NULL; | |
4910 | } | |
4911 | } | |
4912 | ||
4913 | if (! S_IS_EXTERNAL (sym) | |
809ffe0d | 4914 | && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0 |
252b5132 RH |
4915 | && S_GET_STORAGE_CLASS (sym) != C_FILE |
4916 | && S_GET_STORAGE_CLASS (sym) != C_FCN | |
4917 | && S_GET_STORAGE_CLASS (sym) != C_BLOCK | |
4918 | && S_GET_STORAGE_CLASS (sym) != C_BSTAT | |
4919 | && S_GET_STORAGE_CLASS (sym) != C_ESTAT | |
4920 | && S_GET_STORAGE_CLASS (sym) != C_BINCL | |
4921 | && S_GET_STORAGE_CLASS (sym) != C_EINCL | |
4922 | && S_GET_SEGMENT (sym) != ppc_coff_debug_section) | |
4923 | S_SET_STORAGE_CLASS (sym, C_HIDEXT); | |
4924 | ||
4925 | if (S_GET_STORAGE_CLASS (sym) == C_EXT | |
4926 | || S_GET_STORAGE_CLASS (sym) == C_HIDEXT) | |
4927 | { | |
4928 | int i; | |
4929 | union internal_auxent *a; | |
4930 | ||
4931 | /* Create a csect aux. */ | |
4932 | i = S_GET_NUMBER_AUXILIARY (sym); | |
4933 | S_SET_NUMBER_AUXILIARY (sym, i + 1); | |
809ffe0d ILT |
4934 | a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent; |
4935 | if (symbol_get_tc (sym)->class == XMC_TC0) | |
252b5132 RH |
4936 | { |
4937 | /* This is the TOC table. */ | |
4938 | know (strcmp (S_GET_NAME (sym), "TOC") == 0); | |
4939 | a->x_csect.x_scnlen.l = 0; | |
4940 | a->x_csect.x_smtyp = (2 << 3) | XTY_SD; | |
4941 | } | |
809ffe0d | 4942 | else if (symbol_get_tc (sym)->subseg != 0) |
252b5132 RH |
4943 | { |
4944 | /* This is a csect symbol. x_scnlen is the size of the | |
4945 | csect. */ | |
809ffe0d | 4946 | if (symbol_get_tc (sym)->next == (symbolS *) NULL) |
252b5132 RH |
4947 | a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput, |
4948 | S_GET_SEGMENT (sym)) | |
4949 | - S_GET_VALUE (sym)); | |
4950 | else | |
4951 | { | |
6386f3a7 | 4952 | resolve_symbol_value (symbol_get_tc (sym)->next); |
809ffe0d | 4953 | a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next) |
252b5132 RH |
4954 | - S_GET_VALUE (sym)); |
4955 | } | |
809ffe0d | 4956 | a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD; |
252b5132 RH |
4957 | } |
4958 | else if (S_GET_SEGMENT (sym) == bss_section) | |
4959 | { | |
4960 | /* This is a common symbol. */ | |
809ffe0d ILT |
4961 | a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset; |
4962 | a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM; | |
252b5132 | 4963 | if (S_IS_EXTERNAL (sym)) |
809ffe0d | 4964 | symbol_get_tc (sym)->class = XMC_RW; |
252b5132 | 4965 | else |
809ffe0d | 4966 | symbol_get_tc (sym)->class = XMC_BS; |
252b5132 RH |
4967 | } |
4968 | else if (S_GET_SEGMENT (sym) == absolute_section) | |
4969 | { | |
4970 | /* This is an absolute symbol. The csect will be created by | |
99a814a1 | 4971 | ppc_adjust_symtab. */ |
b34976b6 | 4972 | ppc_saw_abs = TRUE; |
252b5132 | 4973 | a->x_csect.x_smtyp = XTY_LD; |
809ffe0d ILT |
4974 | if (symbol_get_tc (sym)->class == -1) |
4975 | symbol_get_tc (sym)->class = XMC_XO; | |
252b5132 RH |
4976 | } |
4977 | else if (! S_IS_DEFINED (sym)) | |
4978 | { | |
4979 | /* This is an external symbol. */ | |
4980 | a->x_csect.x_scnlen.l = 0; | |
4981 | a->x_csect.x_smtyp = XTY_ER; | |
4982 | } | |
809ffe0d | 4983 | else if (symbol_get_tc (sym)->class == XMC_TC) |
252b5132 RH |
4984 | { |
4985 | symbolS *next; | |
4986 | ||
4987 | /* This is a TOC definition. x_scnlen is the size of the | |
4988 | TOC entry. */ | |
4989 | next = symbol_next (sym); | |
809ffe0d | 4990 | while (symbol_get_tc (next)->class == XMC_TC0) |
252b5132 RH |
4991 | next = symbol_next (next); |
4992 | if (next == (symbolS *) NULL | |
809ffe0d | 4993 | || symbol_get_tc (next)->class != XMC_TC) |
252b5132 RH |
4994 | { |
4995 | if (ppc_after_toc_frag == (fragS *) NULL) | |
4996 | a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput, | |
4997 | data_section) | |
4998 | - S_GET_VALUE (sym)); | |
4999 | else | |
5000 | a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address | |
5001 | - S_GET_VALUE (sym)); | |
5002 | } | |
5003 | else | |
5004 | { | |
6386f3a7 | 5005 | resolve_symbol_value (next); |
252b5132 RH |
5006 | a->x_csect.x_scnlen.l = (S_GET_VALUE (next) |
5007 | - S_GET_VALUE (sym)); | |
5008 | } | |
5009 | a->x_csect.x_smtyp = (2 << 3) | XTY_SD; | |
5010 | } | |
5011 | else | |
5012 | { | |
5013 | symbolS *csect; | |
5014 | ||
5015 | /* This is a normal symbol definition. x_scnlen is the | |
5016 | symbol index of the containing csect. */ | |
5017 | if (S_GET_SEGMENT (sym) == text_section) | |
5018 | csect = ppc_text_csects; | |
5019 | else if (S_GET_SEGMENT (sym) == data_section) | |
5020 | csect = ppc_data_csects; | |
5021 | else | |
5022 | abort (); | |
5023 | ||
5024 | /* Skip the initial dummy symbol. */ | |
809ffe0d | 5025 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
5026 | |
5027 | if (csect == (symbolS *) NULL) | |
5028 | { | |
5029 | as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym)); | |
5030 | a->x_csect.x_scnlen.l = 0; | |
5031 | } | |
5032 | else | |
5033 | { | |
809ffe0d | 5034 | while (symbol_get_tc (csect)->next != (symbolS *) NULL) |
252b5132 | 5035 | { |
6386f3a7 | 5036 | resolve_symbol_value (symbol_get_tc (csect)->next); |
809ffe0d ILT |
5037 | if (S_GET_VALUE (symbol_get_tc (csect)->next) |
5038 | > S_GET_VALUE (sym)) | |
252b5132 | 5039 | break; |
809ffe0d | 5040 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
5041 | } |
5042 | ||
809ffe0d ILT |
5043 | a->x_csect.x_scnlen.p = |
5044 | coffsymbol (symbol_get_bfdsym (csect))->native; | |
5045 | coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen = | |
5046 | 1; | |
252b5132 RH |
5047 | } |
5048 | a->x_csect.x_smtyp = XTY_LD; | |
5049 | } | |
81d4177b | 5050 | |
252b5132 RH |
5051 | a->x_csect.x_parmhash = 0; |
5052 | a->x_csect.x_snhash = 0; | |
809ffe0d | 5053 | if (symbol_get_tc (sym)->class == -1) |
252b5132 RH |
5054 | a->x_csect.x_smclas = XMC_PR; |
5055 | else | |
809ffe0d | 5056 | a->x_csect.x_smclas = symbol_get_tc (sym)->class; |
252b5132 RH |
5057 | a->x_csect.x_stab = 0; |
5058 | a->x_csect.x_snstab = 0; | |
5059 | ||
5060 | /* Don't let the COFF backend resort these symbols. */ | |
809ffe0d | 5061 | symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END; |
252b5132 RH |
5062 | } |
5063 | else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT) | |
5064 | { | |
5065 | /* We want the value to be the symbol index of the referenced | |
5066 | csect symbol. BFD will do that for us if we set the right | |
5067 | flags. */ | |
b782de16 AM |
5068 | asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within); |
5069 | combined_entry_type *c = coffsymbol (bsym)->native; | |
5070 | ||
5071 | S_SET_VALUE (sym, (valueT) (size_t) c); | |
809ffe0d | 5072 | coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1; |
252b5132 RH |
5073 | } |
5074 | else if (S_GET_STORAGE_CLASS (sym) == C_STSYM) | |
5075 | { | |
5076 | symbolS *block; | |
5077 | symbolS *csect; | |
5078 | ||
5079 | /* The value is the offset from the enclosing csect. */ | |
809ffe0d ILT |
5080 | block = symbol_get_tc (sym)->within; |
5081 | csect = symbol_get_tc (block)->within; | |
6386f3a7 | 5082 | resolve_symbol_value (csect); |
252b5132 RH |
5083 | S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect)); |
5084 | } | |
5085 | else if (S_GET_STORAGE_CLASS (sym) == C_BINCL | |
5086 | || S_GET_STORAGE_CLASS (sym) == C_EINCL) | |
5087 | { | |
5088 | /* We want the value to be a file offset into the line numbers. | |
99a814a1 AM |
5089 | BFD will do that for us if we set the right flags. We have |
5090 | already set the value correctly. */ | |
809ffe0d | 5091 | coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1; |
252b5132 RH |
5092 | } |
5093 | ||
5094 | return 0; | |
5095 | } | |
5096 | ||
5097 | /* Adjust the symbol table. This creates csect symbols for all | |
5098 | absolute symbols. */ | |
5099 | ||
5100 | void | |
5101 | ppc_adjust_symtab () | |
5102 | { | |
5103 | symbolS *sym; | |
5104 | ||
5105 | if (! ppc_saw_abs) | |
5106 | return; | |
5107 | ||
5108 | for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym)) | |
5109 | { | |
5110 | symbolS *csect; | |
5111 | int i; | |
5112 | union internal_auxent *a; | |
5113 | ||
5114 | if (S_GET_SEGMENT (sym) != absolute_section) | |
5115 | continue; | |
5116 | ||
5117 | csect = symbol_create (".abs[XO]", absolute_section, | |
5118 | S_GET_VALUE (sym), &zero_address_frag); | |
809ffe0d | 5119 | symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym); |
252b5132 RH |
5120 | S_SET_STORAGE_CLASS (csect, C_HIDEXT); |
5121 | i = S_GET_NUMBER_AUXILIARY (csect); | |
5122 | S_SET_NUMBER_AUXILIARY (csect, i + 1); | |
809ffe0d | 5123 | a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent; |
252b5132 RH |
5124 | a->x_csect.x_scnlen.l = 0; |
5125 | a->x_csect.x_smtyp = XTY_SD; | |
5126 | a->x_csect.x_parmhash = 0; | |
5127 | a->x_csect.x_snhash = 0; | |
5128 | a->x_csect.x_smclas = XMC_XO; | |
5129 | a->x_csect.x_stab = 0; | |
5130 | a->x_csect.x_snstab = 0; | |
5131 | ||
5132 | symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP); | |
5133 | ||
5134 | i = S_GET_NUMBER_AUXILIARY (sym); | |
809ffe0d ILT |
5135 | a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent; |
5136 | a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native; | |
5137 | coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1; | |
252b5132 RH |
5138 | } |
5139 | ||
b34976b6 | 5140 | ppc_saw_abs = FALSE; |
252b5132 RH |
5141 | } |
5142 | ||
5143 | /* Set the VMA for a section. This is called on all the sections in | |
5144 | turn. */ | |
5145 | ||
5146 | void | |
5147 | ppc_frob_section (sec) | |
5148 | asection *sec; | |
5149 | { | |
931e13a6 | 5150 | static bfd_vma vma = 0; |
252b5132 | 5151 | |
931e13a6 | 5152 | vma = md_section_align (sec, vma); |
252b5132 RH |
5153 | bfd_set_section_vma (stdoutput, sec, vma); |
5154 | vma += bfd_section_size (stdoutput, sec); | |
5155 | } | |
5156 | ||
5157 | #endif /* OBJ_XCOFF */ | |
5158 | \f | |
5159 | /* Turn a string in input_line_pointer into a floating point constant | |
bc0d738a NC |
5160 | of type TYPE, and store the appropriate bytes in *LITP. The number |
5161 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
252b5132 RH |
5162 | returned, or NULL on OK. */ |
5163 | ||
5164 | char * | |
5165 | md_atof (type, litp, sizep) | |
5166 | int type; | |
5167 | char *litp; | |
5168 | int *sizep; | |
5169 | { | |
5170 | int prec; | |
5171 | LITTLENUM_TYPE words[4]; | |
5172 | char *t; | |
5173 | int i; | |
5174 | ||
5175 | switch (type) | |
5176 | { | |
5177 | case 'f': | |
5178 | prec = 2; | |
5179 | break; | |
5180 | ||
5181 | case 'd': | |
5182 | prec = 4; | |
5183 | break; | |
5184 | ||
5185 | default: | |
5186 | *sizep = 0; | |
5187 | return _("bad call to md_atof"); | |
5188 | } | |
5189 | ||
5190 | t = atof_ieee (input_line_pointer, type, words); | |
5191 | if (t) | |
5192 | input_line_pointer = t; | |
5193 | ||
5194 | *sizep = prec * 2; | |
5195 | ||
5196 | if (target_big_endian) | |
5197 | { | |
5198 | for (i = 0; i < prec; i++) | |
5199 | { | |
5200 | md_number_to_chars (litp, (valueT) words[i], 2); | |
5201 | litp += 2; | |
5202 | } | |
5203 | } | |
5204 | else | |
5205 | { | |
5206 | for (i = prec - 1; i >= 0; i--) | |
5207 | { | |
5208 | md_number_to_chars (litp, (valueT) words[i], 2); | |
5209 | litp += 2; | |
5210 | } | |
5211 | } | |
81d4177b | 5212 | |
252b5132 RH |
5213 | return NULL; |
5214 | } | |
5215 | ||
5216 | /* Write a value out to the object file, using the appropriate | |
5217 | endianness. */ | |
5218 | ||
5219 | void | |
5220 | md_number_to_chars (buf, val, n) | |
5221 | char *buf; | |
5222 | valueT val; | |
5223 | int n; | |
5224 | { | |
5225 | if (target_big_endian) | |
5226 | number_to_chars_bigendian (buf, val, n); | |
5227 | else | |
5228 | number_to_chars_littleendian (buf, val, n); | |
5229 | } | |
5230 | ||
5231 | /* Align a section (I don't know why this is machine dependent). */ | |
5232 | ||
5233 | valueT | |
5234 | md_section_align (seg, addr) | |
5235 | asection *seg; | |
5236 | valueT addr; | |
5237 | { | |
5238 | int align = bfd_get_section_alignment (stdoutput, seg); | |
5239 | ||
5240 | return ((addr + (1 << align) - 1) & (-1 << align)); | |
5241 | } | |
5242 | ||
5243 | /* We don't have any form of relaxing. */ | |
5244 | ||
5245 | int | |
5246 | md_estimate_size_before_relax (fragp, seg) | |
92161534 ILT |
5247 | fragS *fragp ATTRIBUTE_UNUSED; |
5248 | asection *seg ATTRIBUTE_UNUSED; | |
252b5132 RH |
5249 | { |
5250 | abort (); | |
5251 | return 0; | |
5252 | } | |
5253 | ||
5254 | /* Convert a machine dependent frag. We never generate these. */ | |
5255 | ||
5256 | void | |
5257 | md_convert_frag (abfd, sec, fragp) | |
92161534 ILT |
5258 | bfd *abfd ATTRIBUTE_UNUSED; |
5259 | asection *sec ATTRIBUTE_UNUSED; | |
5260 | fragS *fragp ATTRIBUTE_UNUSED; | |
252b5132 RH |
5261 | { |
5262 | abort (); | |
5263 | } | |
5264 | ||
5265 | /* We have no need to default values of symbols. */ | |
5266 | ||
252b5132 RH |
5267 | symbolS * |
5268 | md_undefined_symbol (name) | |
92161534 | 5269 | char *name ATTRIBUTE_UNUSED; |
252b5132 RH |
5270 | { |
5271 | return 0; | |
5272 | } | |
5273 | \f | |
5274 | /* Functions concerning relocs. */ | |
5275 | ||
5276 | /* The location from which a PC relative jump should be calculated, | |
5277 | given a PC relative reloc. */ | |
5278 | ||
5279 | long | |
5280 | md_pcrel_from_section (fixp, sec) | |
5281 | fixS *fixp; | |
92161534 | 5282 | segT sec ATTRIBUTE_UNUSED; |
252b5132 RH |
5283 | { |
5284 | return fixp->fx_frag->fr_address + fixp->fx_where; | |
5285 | } | |
5286 | ||
5287 | #ifdef OBJ_XCOFF | |
5288 | ||
5289 | /* This is called to see whether a fixup should be adjusted to use a | |
5290 | section symbol. We take the opportunity to change a fixup against | |
5291 | a symbol in the TOC subsegment into a reloc against the | |
5292 | corresponding .tc symbol. */ | |
5293 | ||
5294 | int | |
5295 | ppc_fix_adjustable (fix) | |
5296 | fixS *fix; | |
5297 | { | |
b782de16 AM |
5298 | valueT val = resolve_symbol_value (fix->fx_addsy); |
5299 | segT symseg = S_GET_SEGMENT (fix->fx_addsy); | |
5300 | TC_SYMFIELD_TYPE *tc; | |
5301 | ||
5302 | if (symseg == absolute_section) | |
5303 | return 0; | |
252b5132 | 5304 | |
252b5132 | 5305 | if (ppc_toc_csect != (symbolS *) NULL |
252b5132 | 5306 | && fix->fx_addsy != ppc_toc_csect |
b782de16 | 5307 | && symseg == data_section |
252b5132 RH |
5308 | && val >= ppc_toc_frag->fr_address |
5309 | && (ppc_after_toc_frag == (fragS *) NULL | |
5310 | || val < ppc_after_toc_frag->fr_address)) | |
5311 | { | |
5312 | symbolS *sy; | |
5313 | ||
5314 | for (sy = symbol_next (ppc_toc_csect); | |
5315 | sy != (symbolS *) NULL; | |
5316 | sy = symbol_next (sy)) | |
5317 | { | |
b782de16 AM |
5318 | TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy); |
5319 | ||
5320 | if (sy_tc->class == XMC_TC0) | |
252b5132 | 5321 | continue; |
b782de16 | 5322 | if (sy_tc->class != XMC_TC) |
252b5132 | 5323 | break; |
b782de16 | 5324 | if (val == resolve_symbol_value (sy)) |
252b5132 RH |
5325 | { |
5326 | fix->fx_addsy = sy; | |
5327 | fix->fx_addnumber = val - ppc_toc_frag->fr_address; | |
5328 | return 0; | |
5329 | } | |
5330 | } | |
5331 | ||
5332 | as_bad_where (fix->fx_file, fix->fx_line, | |
5333 | _("symbol in .toc does not match any .tc")); | |
5334 | } | |
5335 | ||
5336 | /* Possibly adjust the reloc to be against the csect. */ | |
b782de16 AM |
5337 | tc = symbol_get_tc (fix->fx_addsy); |
5338 | if (tc->subseg == 0 | |
5339 | && tc->class != XMC_TC0 | |
5340 | && tc->class != XMC_TC | |
5341 | && symseg != bss_section | |
252b5132 | 5342 | /* Don't adjust if this is a reloc in the toc section. */ |
b782de16 | 5343 | && (symseg != data_section |
252b5132 RH |
5344 | || ppc_toc_csect == NULL |
5345 | || val < ppc_toc_frag->fr_address | |
5346 | || (ppc_after_toc_frag != NULL | |
5347 | && val >= ppc_after_toc_frag->fr_address))) | |
5348 | { | |
5349 | symbolS *csect; | |
b782de16 | 5350 | symbolS *next_csect; |
252b5132 | 5351 | |
b782de16 | 5352 | if (symseg == text_section) |
252b5132 | 5353 | csect = ppc_text_csects; |
b782de16 | 5354 | else if (symseg == data_section) |
252b5132 RH |
5355 | csect = ppc_data_csects; |
5356 | else | |
5357 | abort (); | |
5358 | ||
5359 | /* Skip the initial dummy symbol. */ | |
809ffe0d | 5360 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
5361 | |
5362 | if (csect != (symbolS *) NULL) | |
5363 | { | |
b782de16 AM |
5364 | while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL |
5365 | && (symbol_get_frag (next_csect)->fr_address <= val)) | |
252b5132 RH |
5366 | { |
5367 | /* If the csect address equals the symbol value, then we | |
99a814a1 AM |
5368 | have to look through the full symbol table to see |
5369 | whether this is the csect we want. Note that we will | |
5370 | only get here if the csect has zero length. */ | |
b782de16 AM |
5371 | if (symbol_get_frag (csect)->fr_address == val |
5372 | && S_GET_VALUE (csect) == val) | |
252b5132 RH |
5373 | { |
5374 | symbolS *scan; | |
5375 | ||
809ffe0d | 5376 | for (scan = symbol_next (csect); |
252b5132 | 5377 | scan != NULL; |
809ffe0d | 5378 | scan = symbol_next (scan)) |
252b5132 | 5379 | { |
809ffe0d | 5380 | if (symbol_get_tc (scan)->subseg != 0) |
252b5132 RH |
5381 | break; |
5382 | if (scan == fix->fx_addsy) | |
5383 | break; | |
5384 | } | |
5385 | ||
5386 | /* If we found the symbol before the next csect | |
99a814a1 | 5387 | symbol, then this is the csect we want. */ |
252b5132 RH |
5388 | if (scan == fix->fx_addsy) |
5389 | break; | |
5390 | } | |
5391 | ||
b782de16 | 5392 | csect = next_csect; |
252b5132 RH |
5393 | } |
5394 | ||
b782de16 | 5395 | fix->fx_offset += val - symbol_get_frag (csect)->fr_address; |
252b5132 RH |
5396 | fix->fx_addsy = csect; |
5397 | } | |
b782de16 | 5398 | return 0; |
252b5132 RH |
5399 | } |
5400 | ||
5401 | /* Adjust a reloc against a .lcomm symbol to be against the base | |
5402 | .lcomm. */ | |
b782de16 | 5403 | if (symseg == bss_section |
252b5132 RH |
5404 | && ! S_IS_EXTERNAL (fix->fx_addsy)) |
5405 | { | |
b782de16 AM |
5406 | symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol; |
5407 | ||
5408 | fix->fx_offset += val - resolve_symbol_value (sy); | |
5409 | fix->fx_addsy = sy; | |
252b5132 RH |
5410 | } |
5411 | ||
5412 | return 0; | |
5413 | } | |
5414 | ||
5415 | /* A reloc from one csect to another must be kept. The assembler | |
5416 | will, of course, keep relocs between sections, and it will keep | |
5417 | absolute relocs, but we need to force it to keep PC relative relocs | |
5418 | between two csects in the same section. */ | |
5419 | ||
5420 | int | |
5421 | ppc_force_relocation (fix) | |
5422 | fixS *fix; | |
5423 | { | |
5424 | /* At this point fix->fx_addsy should already have been converted to | |
5425 | a csect symbol. If the csect does not include the fragment, then | |
5426 | we need to force the relocation. */ | |
5427 | if (fix->fx_pcrel | |
5428 | && fix->fx_addsy != NULL | |
809ffe0d ILT |
5429 | && symbol_get_tc (fix->fx_addsy)->subseg != 0 |
5430 | && ((symbol_get_frag (fix->fx_addsy)->fr_address | |
5431 | > fix->fx_frag->fr_address) | |
5432 | || (symbol_get_tc (fix->fx_addsy)->next != NULL | |
5433 | && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address | |
252b5132 RH |
5434 | <= fix->fx_frag->fr_address)))) |
5435 | return 1; | |
5436 | ||
ae6063d4 | 5437 | return generic_force_reloc (fix); |
252b5132 RH |
5438 | } |
5439 | ||
5440 | #endif /* OBJ_XCOFF */ | |
5441 | ||
0baf16f2 | 5442 | #ifdef OBJ_ELF |
a161fe53 AM |
5443 | /* If this function returns non-zero, it guarantees that a relocation |
5444 | will be emitted for a fixup. */ | |
5445 | ||
5446 | int | |
5447 | ppc_force_relocation (fix) | |
5448 | fixS *fix; | |
5449 | { | |
5450 | /* Branch prediction relocations must force a relocation, as must | |
5451 | the vtable description relocs. */ | |
5452 | switch (fix->fx_r_type) | |
5453 | { | |
5454 | case BFD_RELOC_PPC_B16_BRTAKEN: | |
5455 | case BFD_RELOC_PPC_B16_BRNTAKEN: | |
5456 | case BFD_RELOC_PPC_BA16_BRTAKEN: | |
5457 | case BFD_RELOC_PPC_BA16_BRNTAKEN: | |
5458 | case BFD_RELOC_PPC64_TOC: | |
a161fe53 AM |
5459 | return 1; |
5460 | default: | |
5461 | break; | |
5462 | } | |
5463 | ||
cdba85ec AM |
5464 | if (fix->fx_r_type >= BFD_RELOC_PPC_TLS |
5465 | && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA) | |
5466 | return 1; | |
5467 | ||
ae6063d4 | 5468 | return generic_force_reloc (fix); |
a161fe53 AM |
5469 | } |
5470 | ||
0baf16f2 AM |
5471 | int |
5472 | ppc_fix_adjustable (fix) | |
5473 | fixS *fix; | |
252b5132 | 5474 | { |
0baf16f2 AM |
5475 | return (fix->fx_r_type != BFD_RELOC_16_GOTOFF |
5476 | && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF | |
5477 | && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF | |
5478 | && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF | |
5479 | && fix->fx_r_type != BFD_RELOC_GPREL16 | |
5480 | && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT | |
5481 | && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY | |
cdba85ec AM |
5482 | && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS |
5483 | && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA) | |
0baf16f2 AM |
5484 | && (fix->fx_pcrel |
5485 | || (fix->fx_subsy != NULL | |
5486 | && (S_GET_SEGMENT (fix->fx_subsy) | |
5487 | == S_GET_SEGMENT (fix->fx_addsy))) | |
5488 | || S_IS_LOCAL (fix->fx_addsy))); | |
252b5132 | 5489 | } |
0baf16f2 | 5490 | #endif |
252b5132 RH |
5491 | |
5492 | /* Apply a fixup to the object code. This is called for all the | |
5493 | fixups we generated by the call to fix_new_exp, above. In the call | |
5494 | above we used a reloc code which was the largest legal reloc code | |
5495 | plus the operand index. Here we undo that to recover the operand | |
5496 | index. At this point all symbol values should be fully resolved, | |
5497 | and we attempt to completely resolve the reloc. If we can not do | |
5498 | that, we determine the correct reloc code and put it back in the | |
5499 | fixup. */ | |
5500 | ||
94f592af NC |
5501 | void |
5502 | md_apply_fix3 (fixP, valP, seg) | |
5503 | fixS *fixP; | |
5504 | valueT * valP; | |
0baf16f2 | 5505 | segT seg ATTRIBUTE_UNUSED; |
252b5132 | 5506 | { |
94f592af | 5507 | valueT value = * valP; |
252b5132 RH |
5508 | |
5509 | #ifdef OBJ_ELF | |
94f592af | 5510 | if (fixP->fx_addsy != NULL) |
252b5132 | 5511 | { |
a161fe53 | 5512 | /* Hack around bfd_install_relocation brain damage. */ |
94f592af NC |
5513 | if (fixP->fx_pcrel) |
5514 | value += fixP->fx_frag->fr_address + fixP->fx_where; | |
252b5132 RH |
5515 | } |
5516 | else | |
94f592af | 5517 | fixP->fx_done = 1; |
252b5132 | 5518 | #else |
a161fe53 | 5519 | /* FIXME FIXME FIXME: The value we are passed in *valP includes |
252b5132 RH |
5520 | the symbol values. Since we are using BFD_ASSEMBLER, if we are |
5521 | doing this relocation the code in write.c is going to call | |
5522 | bfd_install_relocation, which is also going to use the symbol | |
5523 | value. That means that if the reloc is fully resolved we want to | |
a161fe53 | 5524 | use *valP since bfd_install_relocation is not being used. |
252b5132 | 5525 | However, if the reloc is not fully resolved we do not want to use |
a161fe53 AM |
5526 | *valP, and must use fx_offset instead. However, if the reloc |
5527 | is PC relative, we do want to use *valP since it includes the | |
252b5132 | 5528 | result of md_pcrel_from. This is confusing. */ |
94f592af NC |
5529 | if (fixP->fx_addsy == (symbolS *) NULL) |
5530 | fixP->fx_done = 1; | |
5531 | ||
5532 | else if (fixP->fx_pcrel) | |
5533 | ; | |
5534 | ||
252b5132 | 5535 | else |
a161fe53 AM |
5536 | value = fixP->fx_offset; |
5537 | #endif | |
5538 | ||
5539 | if (fixP->fx_subsy != (symbolS *) NULL) | |
252b5132 | 5540 | { |
a161fe53 AM |
5541 | /* We can't actually support subtracting a symbol. */ |
5542 | as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex")); | |
252b5132 | 5543 | } |
252b5132 | 5544 | |
94f592af | 5545 | if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED) |
252b5132 RH |
5546 | { |
5547 | int opindex; | |
5548 | const struct powerpc_operand *operand; | |
5549 | char *where; | |
5550 | unsigned long insn; | |
5551 | ||
94f592af | 5552 | opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED; |
252b5132 RH |
5553 | |
5554 | operand = &powerpc_operands[opindex]; | |
5555 | ||
5556 | #ifdef OBJ_XCOFF | |
0baf16f2 AM |
5557 | /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol |
5558 | does not generate a reloc. It uses the offset of `sym' within its | |
5559 | csect. Other usages, such as `.long sym', generate relocs. This | |
5560 | is the documented behaviour of non-TOC symbols. */ | |
252b5132 RH |
5561 | if ((operand->flags & PPC_OPERAND_PARENS) != 0 |
5562 | && operand->bits == 16 | |
5563 | && operand->shift == 0 | |
2b3c4602 | 5564 | && (operand->insert == NULL || ppc_obj64) |
94f592af NC |
5565 | && fixP->fx_addsy != NULL |
5566 | && symbol_get_tc (fixP->fx_addsy)->subseg != 0 | |
5567 | && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC | |
5568 | && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC0 | |
5569 | && S_GET_SEGMENT (fixP->fx_addsy) != bss_section) | |
252b5132 | 5570 | { |
94f592af NC |
5571 | value = fixP->fx_offset; |
5572 | fixP->fx_done = 1; | |
252b5132 RH |
5573 | } |
5574 | #endif | |
5575 | ||
5576 | /* Fetch the instruction, insert the fully resolved operand | |
5577 | value, and stuff the instruction back again. */ | |
94f592af | 5578 | where = fixP->fx_frag->fr_literal + fixP->fx_where; |
252b5132 RH |
5579 | if (target_big_endian) |
5580 | insn = bfd_getb32 ((unsigned char *) where); | |
5581 | else | |
5582 | insn = bfd_getl32 ((unsigned char *) where); | |
5583 | insn = ppc_insert_operand (insn, operand, (offsetT) value, | |
94f592af | 5584 | fixP->fx_file, fixP->fx_line); |
252b5132 RH |
5585 | if (target_big_endian) |
5586 | bfd_putb32 ((bfd_vma) insn, (unsigned char *) where); | |
5587 | else | |
5588 | bfd_putl32 ((bfd_vma) insn, (unsigned char *) where); | |
5589 | ||
94f592af NC |
5590 | if (fixP->fx_done) |
5591 | /* Nothing else to do here. */ | |
5592 | return; | |
252b5132 | 5593 | |
94f592af | 5594 | assert (fixP->fx_addsy != NULL); |
0baf16f2 | 5595 | |
252b5132 RH |
5596 | /* Determine a BFD reloc value based on the operand information. |
5597 | We are only prepared to turn a few of the operands into | |
0baf16f2 | 5598 | relocs. */ |
11b37b7b AM |
5599 | if ((operand->flags & PPC_OPERAND_RELATIVE) != 0 |
5600 | && operand->bits == 26 | |
5601 | && operand->shift == 0) | |
94f592af | 5602 | fixP->fx_r_type = BFD_RELOC_PPC_B26; |
11b37b7b AM |
5603 | else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0 |
5604 | && operand->bits == 16 | |
5605 | && operand->shift == 0) | |
95210096 AM |
5606 | { |
5607 | fixP->fx_r_type = BFD_RELOC_PPC_B16; | |
5608 | #ifdef OBJ_XCOFF | |
5609 | fixP->fx_size = 2; | |
5610 | if (target_big_endian) | |
5611 | fixP->fx_where += 2; | |
5612 | #endif | |
5613 | } | |
11b37b7b AM |
5614 | else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0 |
5615 | && operand->bits == 26 | |
5616 | && operand->shift == 0) | |
94f592af | 5617 | fixP->fx_r_type = BFD_RELOC_PPC_BA26; |
11b37b7b AM |
5618 | else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0 |
5619 | && operand->bits == 16 | |
5620 | && operand->shift == 0) | |
95210096 AM |
5621 | { |
5622 | fixP->fx_r_type = BFD_RELOC_PPC_BA16; | |
5623 | #ifdef OBJ_XCOFF | |
5624 | fixP->fx_size = 2; | |
5625 | if (target_big_endian) | |
5626 | fixP->fx_where += 2; | |
5627 | #endif | |
5628 | } | |
0baf16f2 | 5629 | #if defined (OBJ_XCOFF) || defined (OBJ_ELF) |
11b37b7b AM |
5630 | else if ((operand->flags & PPC_OPERAND_PARENS) != 0 |
5631 | && operand->bits == 16 | |
a7fc733f | 5632 | && operand->shift == 0) |
11b37b7b | 5633 | { |
a7fc733f AM |
5634 | if (ppc_is_toc_sym (fixP->fx_addsy)) |
5635 | { | |
5636 | fixP->fx_r_type = BFD_RELOC_PPC_TOC16; | |
0baf16f2 | 5637 | #ifdef OBJ_ELF |
a7fc733f AM |
5638 | if (ppc_obj64 |
5639 | && (operand->flags & PPC_OPERAND_DS) != 0) | |
5640 | fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS; | |
5641 | #endif | |
5642 | } | |
5643 | else | |
5644 | { | |
5645 | fixP->fx_r_type = BFD_RELOC_16; | |
5646 | #ifdef OBJ_ELF | |
5647 | if (ppc_obj64 | |
5648 | && (operand->flags & PPC_OPERAND_DS) != 0) | |
5649 | fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS; | |
0baf16f2 | 5650 | #endif |
a7fc733f | 5651 | } |
94f592af | 5652 | fixP->fx_size = 2; |
11b37b7b | 5653 | if (target_big_endian) |
94f592af | 5654 | fixP->fx_where += 2; |
11b37b7b | 5655 | } |
0baf16f2 | 5656 | #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */ |
11b37b7b | 5657 | else |
252b5132 RH |
5658 | { |
5659 | char *sfile; | |
5660 | unsigned int sline; | |
5661 | ||
5662 | /* Use expr_symbol_where to see if this is an expression | |
0baf16f2 | 5663 | symbol. */ |
94f592af NC |
5664 | if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline)) |
5665 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
252b5132 RH |
5666 | _("unresolved expression that must be resolved")); |
5667 | else | |
94f592af | 5668 | as_bad_where (fixP->fx_file, fixP->fx_line, |
0baf16f2 | 5669 | _("unsupported relocation against %s"), |
94f592af NC |
5670 | S_GET_NAME (fixP->fx_addsy)); |
5671 | fixP->fx_done = 1; | |
5672 | return; | |
252b5132 RH |
5673 | } |
5674 | } | |
5675 | else | |
5676 | { | |
5677 | #ifdef OBJ_ELF | |
94f592af | 5678 | ppc_elf_validate_fix (fixP, seg); |
252b5132 | 5679 | #endif |
94f592af | 5680 | switch (fixP->fx_r_type) |
252b5132 | 5681 | { |
252b5132 | 5682 | case BFD_RELOC_CTOR: |
2b3c4602 | 5683 | if (ppc_obj64) |
9c7977b3 AM |
5684 | goto ctor64; |
5685 | /* fall through */ | |
5686 | ||
0baf16f2 | 5687 | case BFD_RELOC_32: |
94f592af NC |
5688 | if (fixP->fx_pcrel) |
5689 | fixP->fx_r_type = BFD_RELOC_32_PCREL; | |
99a814a1 | 5690 | /* fall through */ |
252b5132 RH |
5691 | |
5692 | case BFD_RELOC_RVA: | |
5693 | case BFD_RELOC_32_PCREL: | |
252b5132 | 5694 | case BFD_RELOC_PPC_EMB_NADDR32: |
94f592af | 5695 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
252b5132 RH |
5696 | value, 4); |
5697 | break; | |
5698 | ||
7f6d05e8 | 5699 | case BFD_RELOC_64: |
9c7977b3 | 5700 | ctor64: |
94f592af NC |
5701 | if (fixP->fx_pcrel) |
5702 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
99a814a1 | 5703 | /* fall through */ |
0baf16f2 | 5704 | |
7f6d05e8 | 5705 | case BFD_RELOC_64_PCREL: |
94f592af | 5706 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
7f6d05e8 | 5707 | value, 8); |
81d4177b | 5708 | break; |
0baf16f2 | 5709 | |
252b5132 RH |
5710 | case BFD_RELOC_LO16: |
5711 | case BFD_RELOC_16: | |
5712 | case BFD_RELOC_GPREL16: | |
5713 | case BFD_RELOC_16_GOT_PCREL: | |
5714 | case BFD_RELOC_16_GOTOFF: | |
5715 | case BFD_RELOC_LO16_GOTOFF: | |
5716 | case BFD_RELOC_HI16_GOTOFF: | |
5717 | case BFD_RELOC_HI16_S_GOTOFF: | |
1cfc59d5 | 5718 | case BFD_RELOC_16_BASEREL: |
252b5132 RH |
5719 | case BFD_RELOC_LO16_BASEREL: |
5720 | case BFD_RELOC_HI16_BASEREL: | |
5721 | case BFD_RELOC_HI16_S_BASEREL: | |
5722 | case BFD_RELOC_PPC_EMB_NADDR16: | |
5723 | case BFD_RELOC_PPC_EMB_NADDR16_LO: | |
5724 | case BFD_RELOC_PPC_EMB_NADDR16_HI: | |
5725 | case BFD_RELOC_PPC_EMB_NADDR16_HA: | |
5726 | case BFD_RELOC_PPC_EMB_SDAI16: | |
5727 | case BFD_RELOC_PPC_EMB_SDA2REL: | |
5728 | case BFD_RELOC_PPC_EMB_SDA2I16: | |
5729 | case BFD_RELOC_PPC_EMB_RELSEC16: | |
5730 | case BFD_RELOC_PPC_EMB_RELST_LO: | |
5731 | case BFD_RELOC_PPC_EMB_RELST_HI: | |
5732 | case BFD_RELOC_PPC_EMB_RELST_HA: | |
5733 | case BFD_RELOC_PPC_EMB_RELSDA: | |
5734 | case BFD_RELOC_PPC_TOC16: | |
0baf16f2 | 5735 | #ifdef OBJ_ELF |
0baf16f2 AM |
5736 | case BFD_RELOC_PPC64_TOC16_LO: |
5737 | case BFD_RELOC_PPC64_TOC16_HI: | |
5738 | case BFD_RELOC_PPC64_TOC16_HA: | |
0baf16f2 | 5739 | #endif |
94f592af | 5740 | if (fixP->fx_pcrel) |
252b5132 | 5741 | { |
94f592af NC |
5742 | if (fixP->fx_addsy != NULL) |
5743 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
252b5132 | 5744 | _("cannot emit PC relative %s relocation against %s"), |
94f592af NC |
5745 | bfd_get_reloc_code_name (fixP->fx_r_type), |
5746 | S_GET_NAME (fixP->fx_addsy)); | |
252b5132 | 5747 | else |
94f592af | 5748 | as_bad_where (fixP->fx_file, fixP->fx_line, |
252b5132 | 5749 | _("cannot emit PC relative %s relocation"), |
94f592af | 5750 | bfd_get_reloc_code_name (fixP->fx_r_type)); |
252b5132 RH |
5751 | } |
5752 | ||
94f592af | 5753 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
252b5132 RH |
5754 | value, 2); |
5755 | break; | |
5756 | ||
5757 | /* This case happens when you write, for example, | |
5758 | lis %r3,(L1-L2)@ha | |
5759 | where L1 and L2 are defined later. */ | |
5760 | case BFD_RELOC_HI16: | |
94f592af | 5761 | if (fixP->fx_pcrel) |
252b5132 | 5762 | abort (); |
94f592af | 5763 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 | 5764 | PPC_HI (value), 2); |
252b5132 | 5765 | break; |
0baf16f2 | 5766 | |
252b5132 | 5767 | case BFD_RELOC_HI16_S: |
94f592af | 5768 | if (fixP->fx_pcrel) |
252b5132 | 5769 | abort (); |
94f592af | 5770 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5771 | PPC_HA (value), 2); |
5772 | break; | |
5773 | ||
5774 | #ifdef OBJ_ELF | |
0baf16f2 | 5775 | case BFD_RELOC_PPC64_HIGHER: |
94f592af | 5776 | if (fixP->fx_pcrel) |
0baf16f2 | 5777 | abort (); |
94f592af | 5778 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 | 5779 | PPC_HIGHER (value), 2); |
252b5132 RH |
5780 | break; |
5781 | ||
0baf16f2 | 5782 | case BFD_RELOC_PPC64_HIGHER_S: |
94f592af | 5783 | if (fixP->fx_pcrel) |
0baf16f2 | 5784 | abort (); |
94f592af | 5785 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5786 | PPC_HIGHERA (value), 2); |
5787 | break; | |
5788 | ||
5789 | case BFD_RELOC_PPC64_HIGHEST: | |
94f592af | 5790 | if (fixP->fx_pcrel) |
0baf16f2 | 5791 | abort (); |
94f592af | 5792 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5793 | PPC_HIGHEST (value), 2); |
5794 | break; | |
5795 | ||
5796 | case BFD_RELOC_PPC64_HIGHEST_S: | |
94f592af | 5797 | if (fixP->fx_pcrel) |
0baf16f2 | 5798 | abort (); |
94f592af | 5799 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5800 | PPC_HIGHESTA (value), 2); |
5801 | break; | |
5802 | ||
5803 | case BFD_RELOC_PPC64_ADDR16_DS: | |
5804 | case BFD_RELOC_PPC64_ADDR16_LO_DS: | |
5805 | case BFD_RELOC_PPC64_GOT16_DS: | |
5806 | case BFD_RELOC_PPC64_GOT16_LO_DS: | |
5807 | case BFD_RELOC_PPC64_PLT16_LO_DS: | |
5808 | case BFD_RELOC_PPC64_SECTOFF_DS: | |
5809 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: | |
5810 | case BFD_RELOC_PPC64_TOC16_DS: | |
5811 | case BFD_RELOC_PPC64_TOC16_LO_DS: | |
5812 | case BFD_RELOC_PPC64_PLTGOT16_DS: | |
5813 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: | |
94f592af | 5814 | if (fixP->fx_pcrel) |
0baf16f2 AM |
5815 | abort (); |
5816 | { | |
94f592af | 5817 | unsigned char *where = fixP->fx_frag->fr_literal + fixP->fx_where; |
3d8aea2f | 5818 | unsigned long val, mask; |
0baf16f2 AM |
5819 | |
5820 | if (target_big_endian) | |
adadcc0c | 5821 | val = bfd_getb32 (where - 2); |
0baf16f2 | 5822 | else |
adadcc0c AM |
5823 | val = bfd_getl32 (where); |
5824 | mask = 0xfffc; | |
5825 | /* lq insns reserve the four lsbs. */ | |
5826 | if ((ppc_cpu & PPC_OPCODE_POWER4) != 0 | |
77a6138a | 5827 | && (val & (0x3f << 26)) == (56u << 26)) |
adadcc0c AM |
5828 | mask = 0xfff0; |
5829 | val |= value & mask; | |
0baf16f2 AM |
5830 | if (target_big_endian) |
5831 | bfd_putb16 ((bfd_vma) val, where); | |
5832 | else | |
5833 | bfd_putl16 ((bfd_vma) val, where); | |
5834 | } | |
5835 | break; | |
cdba85ec | 5836 | |
ba0b2174 AM |
5837 | case BFD_RELOC_PPC_B16_BRTAKEN: |
5838 | case BFD_RELOC_PPC_B16_BRNTAKEN: | |
5839 | case BFD_RELOC_PPC_BA16_BRTAKEN: | |
5840 | case BFD_RELOC_PPC_BA16_BRNTAKEN: | |
5841 | break; | |
5842 | ||
cdba85ec AM |
5843 | case BFD_RELOC_PPC_TLS: |
5844 | case BFD_RELOC_PPC_DTPMOD: | |
5845 | case BFD_RELOC_PPC_TPREL16: | |
5846 | case BFD_RELOC_PPC_TPREL16_LO: | |
5847 | case BFD_RELOC_PPC_TPREL16_HI: | |
5848 | case BFD_RELOC_PPC_TPREL16_HA: | |
5849 | case BFD_RELOC_PPC_TPREL: | |
5850 | case BFD_RELOC_PPC_DTPREL16: | |
5851 | case BFD_RELOC_PPC_DTPREL16_LO: | |
5852 | case BFD_RELOC_PPC_DTPREL16_HI: | |
5853 | case BFD_RELOC_PPC_DTPREL16_HA: | |
5854 | case BFD_RELOC_PPC_DTPREL: | |
5855 | case BFD_RELOC_PPC_GOT_TLSGD16: | |
5856 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: | |
5857 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: | |
5858 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: | |
5859 | case BFD_RELOC_PPC_GOT_TLSLD16: | |
5860 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: | |
5861 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: | |
5862 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: | |
5863 | case BFD_RELOC_PPC_GOT_TPREL16: | |
5864 | case BFD_RELOC_PPC_GOT_TPREL16_LO: | |
5865 | case BFD_RELOC_PPC_GOT_TPREL16_HI: | |
5866 | case BFD_RELOC_PPC_GOT_TPREL16_HA: | |
5867 | case BFD_RELOC_PPC_GOT_DTPREL16: | |
5868 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: | |
5869 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: | |
5870 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: | |
5871 | case BFD_RELOC_PPC64_TPREL16_DS: | |
5872 | case BFD_RELOC_PPC64_TPREL16_LO_DS: | |
5873 | case BFD_RELOC_PPC64_TPREL16_HIGHER: | |
5874 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: | |
5875 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: | |
5876 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: | |
5877 | case BFD_RELOC_PPC64_DTPREL16_DS: | |
5878 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: | |
5879 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: | |
5880 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: | |
5881 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: | |
5882 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: | |
5883 | break; | |
0baf16f2 | 5884 | #endif |
252b5132 | 5885 | /* Because SDA21 modifies the register field, the size is set to 4 |
99a814a1 | 5886 | bytes, rather than 2, so offset it here appropriately. */ |
252b5132 | 5887 | case BFD_RELOC_PPC_EMB_SDA21: |
94f592af | 5888 | if (fixP->fx_pcrel) |
252b5132 RH |
5889 | abort (); |
5890 | ||
94f592af | 5891 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where |
252b5132 RH |
5892 | + ((target_big_endian) ? 2 : 0), |
5893 | value, 2); | |
5894 | break; | |
5895 | ||
5896 | case BFD_RELOC_8: | |
94f592af | 5897 | if (fixP->fx_pcrel) |
31a91399 NC |
5898 | { |
5899 | /* This can occur if there is a bug in the input assembler, eg: | |
b7d7dc63 | 5900 | ".byte <undefined_symbol> - ." */ |
31a91399 NC |
5901 | if (fixP->fx_addsy) |
5902 | as_bad (_("Unable to handle reference to symbol %s"), | |
5903 | S_GET_NAME (fixP->fx_addsy)); | |
5904 | else | |
5905 | as_bad (_("Unable to resolve expression")); | |
5906 | fixP->fx_done = 1; | |
5907 | } | |
5908 | else | |
5909 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, | |
5910 | value, 1); | |
252b5132 RH |
5911 | break; |
5912 | ||
5913 | case BFD_RELOC_24_PLT_PCREL: | |
5914 | case BFD_RELOC_PPC_LOCAL24PC: | |
94f592af | 5915 | if (!fixP->fx_pcrel && !fixP->fx_done) |
252b5132 RH |
5916 | abort (); |
5917 | ||
94f592af | 5918 | if (fixP->fx_done) |
99a814a1 AM |
5919 | { |
5920 | char *where; | |
5921 | unsigned long insn; | |
5922 | ||
5923 | /* Fetch the instruction, insert the fully resolved operand | |
5924 | value, and stuff the instruction back again. */ | |
94f592af | 5925 | where = fixP->fx_frag->fr_literal + fixP->fx_where; |
99a814a1 AM |
5926 | if (target_big_endian) |
5927 | insn = bfd_getb32 ((unsigned char *) where); | |
5928 | else | |
5929 | insn = bfd_getl32 ((unsigned char *) where); | |
5930 | if ((value & 3) != 0) | |
94f592af | 5931 | as_bad_where (fixP->fx_file, fixP->fx_line, |
99a814a1 AM |
5932 | _("must branch to an address a multiple of 4")); |
5933 | if ((offsetT) value < -0x40000000 | |
5934 | || (offsetT) value >= 0x40000000) | |
94f592af | 5935 | as_bad_where (fixP->fx_file, fixP->fx_line, |
99a814a1 AM |
5936 | _("@local or @plt branch destination is too far away, %ld bytes"), |
5937 | (long) value); | |
5938 | insn = insn | (value & 0x03fffffc); | |
5939 | if (target_big_endian) | |
5940 | bfd_putb32 ((bfd_vma) insn, (unsigned char *) where); | |
5941 | else | |
5942 | bfd_putl32 ((bfd_vma) insn, (unsigned char *) where); | |
5943 | } | |
252b5132 RH |
5944 | break; |
5945 | ||
5946 | case BFD_RELOC_VTABLE_INHERIT: | |
94f592af NC |
5947 | fixP->fx_done = 0; |
5948 | if (fixP->fx_addsy | |
5949 | && !S_IS_DEFINED (fixP->fx_addsy) | |
5950 | && !S_IS_WEAK (fixP->fx_addsy)) | |
5951 | S_SET_WEAK (fixP->fx_addsy); | |
252b5132 RH |
5952 | break; |
5953 | ||
5954 | case BFD_RELOC_VTABLE_ENTRY: | |
94f592af | 5955 | fixP->fx_done = 0; |
252b5132 RH |
5956 | break; |
5957 | ||
0baf16f2 | 5958 | #ifdef OBJ_ELF |
0baf16f2 AM |
5959 | /* Generated by reference to `sym@tocbase'. The sym is |
5960 | ignored by the linker. */ | |
5961 | case BFD_RELOC_PPC64_TOC: | |
94f592af | 5962 | fixP->fx_done = 0; |
0baf16f2 | 5963 | break; |
0baf16f2 | 5964 | #endif |
252b5132 | 5965 | default: |
bc805888 | 5966 | fprintf (stderr, |
94f592af | 5967 | _("Gas failure, reloc value %d\n"), fixP->fx_r_type); |
99a814a1 | 5968 | fflush (stderr); |
252b5132 RH |
5969 | abort (); |
5970 | } | |
5971 | } | |
5972 | ||
5973 | #ifdef OBJ_ELF | |
94f592af | 5974 | fixP->fx_addnumber = value; |
252b5132 | 5975 | #else |
94f592af NC |
5976 | if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16) |
5977 | fixP->fx_addnumber = 0; | |
252b5132 RH |
5978 | else |
5979 | { | |
5980 | #ifdef TE_PE | |
94f592af | 5981 | fixP->fx_addnumber = 0; |
252b5132 RH |
5982 | #else |
5983 | /* We want to use the offset within the data segment of the | |
5984 | symbol, not the actual VMA of the symbol. */ | |
94f592af NC |
5985 | fixP->fx_addnumber = |
5986 | - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy)); | |
252b5132 RH |
5987 | #endif |
5988 | } | |
5989 | #endif | |
252b5132 RH |
5990 | } |
5991 | ||
5992 | /* Generate a reloc for a fixup. */ | |
5993 | ||
5994 | arelent * | |
5995 | tc_gen_reloc (seg, fixp) | |
92161534 | 5996 | asection *seg ATTRIBUTE_UNUSED; |
252b5132 RH |
5997 | fixS *fixp; |
5998 | { | |
5999 | arelent *reloc; | |
6000 | ||
6001 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
6002 | ||
49309057 ILT |
6003 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
6004 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
6005 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
6006 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
6007 | if (reloc->howto == (reloc_howto_type *) NULL) | |
6008 | { | |
6009 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
99a814a1 AM |
6010 | _("reloc %d not supported by object file format"), |
6011 | (int) fixp->fx_r_type); | |
252b5132 RH |
6012 | return NULL; |
6013 | } | |
6014 | reloc->addend = fixp->fx_addnumber; | |
6015 | ||
6016 | return reloc; | |
6017 | } | |
75e21f08 JJ |
6018 | |
6019 | void | |
6020 | ppc_cfi_frame_initial_instructions () | |
6021 | { | |
6022 | cfi_add_CFA_def_cfa (1, 0); | |
6023 | } | |
6024 | ||
6025 | int | |
6026 | tc_ppc_regname_to_dw2regnum (const char *regname) | |
6027 | { | |
6028 | unsigned int regnum = -1; | |
6029 | unsigned int i; | |
6030 | const char *p; | |
6031 | char *q; | |
6032 | static struct { char *name; int dw2regnum; } regnames[] = | |
6033 | { | |
6034 | { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 }, | |
6035 | { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 }, | |
6036 | { "cc", 68 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 }, | |
6037 | { "spe_acc", 111 }, { "spefscr", 112 } | |
6038 | }; | |
6039 | ||
6040 | for (i = 0; i < ARRAY_SIZE (regnames); ++i) | |
6041 | if (strcmp (regnames[i].name, regname) == 0) | |
6042 | return regnames[i].dw2regnum; | |
6043 | ||
6044 | if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v') | |
6045 | { | |
6046 | p = regname + 1 + (regname[1] == '.'); | |
6047 | regnum = strtoul (p, &q, 10); | |
6048 | if (p == q || *q || regnum >= 32) | |
6049 | return -1; | |
6050 | if (regname[0] == 'f') | |
b7d7dc63 | 6051 | regnum += 32; |
75e21f08 | 6052 | else if (regname[0] == 'v') |
b7d7dc63 | 6053 | regnum += 77; |
75e21f08 JJ |
6054 | } |
6055 | else if (regname[0] == 'c' && regname[1] == 'r') | |
6056 | { | |
6057 | p = regname + 2 + (regname[2] == '.'); | |
6058 | if (p[0] < '0' || p[0] > '7' || p[1]) | |
b7d7dc63 | 6059 | return -1; |
75e21f08 JJ |
6060 | regnum = p[0] - '0' + 68; |
6061 | } | |
6062 | return regnum; | |
6063 | } |