Commit | Line | Data |
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252b5132 | 1 | /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000) |
23e1d84c | 2 | Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 |
2c1c4c62 | 3 | Free Software Foundation, Inc. |
252b5132 RH |
4 | Written by Ian Lance Taylor, Cygnus Support. |
5 | ||
6 | This file is part of GAS, the GNU Assembler. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GAS is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GAS; see the file COPYING. If not, write to the Free | |
20 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
81d4177b | 21 | 02111-1307, USA. */ |
252b5132 RH |
22 | |
23 | #include <stdio.h> | |
252b5132 | 24 | #include "as.h" |
3882b010 | 25 | #include "safe-ctype.h" |
252b5132 RH |
26 | #include "subsegs.h" |
27 | ||
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 | |
50 | #define TARGET_REG_NAMES_P true | |
51 | #else | |
52 | #define TARGET_REG_NAMES_P false | |
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. */ | |
71 | #define PPC_HIGHER(v) (((v) >> 32) & 0xffff) | |
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. */ | |
78 | #define PPC_HIGHEST(v) (((v) >> 48) & 0xffff) | |
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 | ||
252b5132 RH |
86 | static boolean reg_names_p = TARGET_REG_NAMES_P; |
87 | ||
88 | static boolean register_name PARAMS ((expressionS *)); | |
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)); | |
114 | static void ppc_change_csect PARAMS ((symbolS *)); | |
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)); | |
133 | #endif | |
134 | ||
135 | #ifdef TE_PE | |
136 | static void ppc_set_current_section PARAMS ((segT)); | |
137 | static void ppc_previous PARAMS ((int)); | |
138 | static void ppc_pdata PARAMS ((int)); | |
139 | static void ppc_ydata PARAMS ((int)); | |
140 | static void ppc_reldata PARAMS ((int)); | |
141 | static void ppc_rdata PARAMS ((int)); | |
142 | static void ppc_ualong PARAMS ((int)); | |
143 | static void ppc_znop PARAMS ((int)); | |
144 | static void ppc_pe_comm PARAMS ((int)); | |
145 | static void ppc_pe_section PARAMS ((int)); | |
146 | static void ppc_pe_function PARAMS ((int)); | |
147 | static void ppc_pe_tocd PARAMS ((int)); | |
148 | #endif | |
149 | \f | |
150 | /* Generic assembler global variables which must be defined by all | |
151 | targets. */ | |
152 | ||
153 | #ifdef OBJ_ELF | |
154 | /* This string holds the chars that always start a comment. If the | |
155 | pre-processor is disabled, these aren't very useful. The macro | |
156 | tc_comment_chars points to this. We use this, rather than the | |
157 | usual comment_chars, so that we can switch for Solaris conventions. */ | |
158 | static const char ppc_solaris_comment_chars[] = "#!"; | |
159 | static const char ppc_eabi_comment_chars[] = "#"; | |
160 | ||
161 | #ifdef TARGET_SOLARIS_COMMENT | |
162 | const char *ppc_comment_chars = ppc_solaris_comment_chars; | |
163 | #else | |
164 | const char *ppc_comment_chars = ppc_eabi_comment_chars; | |
165 | #endif | |
166 | #else | |
167 | const char comment_chars[] = "#"; | |
168 | #endif | |
169 | ||
170 | /* Characters which start a comment at the beginning of a line. */ | |
171 | const char line_comment_chars[] = "#"; | |
172 | ||
173 | /* Characters which may be used to separate multiple commands on a | |
174 | single line. */ | |
175 | const char line_separator_chars[] = ";"; | |
176 | ||
177 | /* Characters which are used to indicate an exponent in a floating | |
178 | point number. */ | |
179 | const char EXP_CHARS[] = "eE"; | |
180 | ||
181 | /* Characters which mean that a number is a floating point constant, | |
182 | as in 0d1.0. */ | |
183 | const char FLT_CHARS[] = "dD"; | |
184 | \f | |
185 | /* The target specific pseudo-ops which we support. */ | |
186 | ||
187 | const pseudo_typeS md_pseudo_table[] = | |
188 | { | |
189 | /* Pseudo-ops which must be overridden. */ | |
190 | { "byte", ppc_byte, 0 }, | |
191 | ||
192 | #ifdef OBJ_XCOFF | |
193 | /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these | |
194 | legitimately belong in the obj-*.c file. However, XCOFF is based | |
195 | on COFF, and is only implemented for the RS/6000. We just use | |
196 | obj-coff.c, and add what we need here. */ | |
197 | { "comm", ppc_comm, 0 }, | |
198 | { "lcomm", ppc_comm, 1 }, | |
199 | { "bb", ppc_bb, 0 }, | |
200 | { "bc", ppc_bc, 0 }, | |
201 | { "bf", ppc_bf, 0 }, | |
202 | { "bi", ppc_biei, 0 }, | |
203 | { "bs", ppc_bs, 0 }, | |
204 | { "csect", ppc_csect, 0 }, | |
205 | { "data", ppc_section, 'd' }, | |
206 | { "eb", ppc_eb, 0 }, | |
207 | { "ec", ppc_ec, 0 }, | |
208 | { "ef", ppc_ef, 0 }, | |
209 | { "ei", ppc_biei, 1 }, | |
210 | { "es", ppc_es, 0 }, | |
211 | { "extern", ppc_extern, 0 }, | |
212 | { "function", ppc_function, 0 }, | |
213 | { "lglobl", ppc_lglobl, 0 }, | |
214 | { "rename", ppc_rename, 0 }, | |
215 | { "section", ppc_named_section, 0 }, | |
216 | { "stabx", ppc_stabx, 0 }, | |
217 | { "text", ppc_section, 't' }, | |
218 | { "toc", ppc_toc, 0 }, | |
219 | { "long", ppc_xcoff_cons, 2 }, | |
7f6d05e8 | 220 | { "llong", ppc_xcoff_cons, 3 }, |
252b5132 RH |
221 | { "word", ppc_xcoff_cons, 1 }, |
222 | { "short", ppc_xcoff_cons, 1 }, | |
223 | { "vbyte", ppc_vbyte, 0 }, | |
224 | #endif | |
225 | ||
226 | #ifdef OBJ_ELF | |
0baf16f2 AM |
227 | { "llong", ppc_elf_cons, 8 }, |
228 | { "quad", ppc_elf_cons, 8 }, | |
252b5132 RH |
229 | { "long", ppc_elf_cons, 4 }, |
230 | { "word", ppc_elf_cons, 2 }, | |
231 | { "short", ppc_elf_cons, 2 }, | |
232 | { "rdata", ppc_elf_rdata, 0 }, | |
233 | { "rodata", ppc_elf_rdata, 0 }, | |
234 | { "lcomm", ppc_elf_lcomm, 0 }, | |
5d6f4f16 GK |
235 | { "file", dwarf2_directive_file, 0 }, |
236 | { "loc", dwarf2_directive_loc, 0 }, | |
252b5132 RH |
237 | #endif |
238 | ||
239 | #ifdef TE_PE | |
99a814a1 | 240 | /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */ |
252b5132 RH |
241 | { "previous", ppc_previous, 0 }, |
242 | { "pdata", ppc_pdata, 0 }, | |
243 | { "ydata", ppc_ydata, 0 }, | |
244 | { "reldata", ppc_reldata, 0 }, | |
245 | { "rdata", ppc_rdata, 0 }, | |
246 | { "ualong", ppc_ualong, 0 }, | |
247 | { "znop", ppc_znop, 0 }, | |
248 | { "comm", ppc_pe_comm, 0 }, | |
249 | { "lcomm", ppc_pe_comm, 1 }, | |
250 | { "section", ppc_pe_section, 0 }, | |
251 | { "function", ppc_pe_function,0 }, | |
252 | { "tocd", ppc_pe_tocd, 0 }, | |
253 | #endif | |
254 | ||
0baf16f2 | 255 | #if defined (OBJ_XCOFF) || defined (OBJ_ELF) |
252b5132 | 256 | { "tc", ppc_tc, 0 }, |
0baf16f2 AM |
257 | { "machine", ppc_machine, 0 }, |
258 | #endif | |
252b5132 RH |
259 | |
260 | { NULL, NULL, 0 } | |
261 | }; | |
262 | ||
263 | \f | |
99a814a1 AM |
264 | /* Predefined register names if -mregnames (or default for Windows NT). |
265 | In general, there are lots of them, in an attempt to be compatible | |
266 | with a number of other Windows NT assemblers. */ | |
252b5132 RH |
267 | |
268 | /* Structure to hold information about predefined registers. */ | |
269 | struct pd_reg | |
270 | { | |
271 | char *name; | |
272 | int value; | |
273 | }; | |
274 | ||
275 | /* List of registers that are pre-defined: | |
276 | ||
277 | Each general register has predefined names of the form: | |
278 | 1. r<reg_num> which has the value <reg_num>. | |
279 | 2. r.<reg_num> which has the value <reg_num>. | |
280 | ||
252b5132 RH |
281 | Each floating point register has predefined names of the form: |
282 | 1. f<reg_num> which has the value <reg_num>. | |
283 | 2. f.<reg_num> which has the value <reg_num>. | |
284 | ||
7a899fff C |
285 | Each vector unit register has predefined names of the form: |
286 | 1. v<reg_num> which has the value <reg_num>. | |
287 | 2. v.<reg_num> which has the value <reg_num>. | |
288 | ||
252b5132 RH |
289 | Each condition register has predefined names of the form: |
290 | 1. cr<reg_num> which has the value <reg_num>. | |
291 | 2. cr.<reg_num> which has the value <reg_num>. | |
292 | ||
293 | There are individual registers as well: | |
294 | sp or r.sp has the value 1 | |
295 | rtoc or r.toc has the value 2 | |
296 | fpscr has the value 0 | |
297 | xer has the value 1 | |
298 | lr has the value 8 | |
299 | ctr has the value 9 | |
300 | pmr has the value 0 | |
301 | dar has the value 19 | |
302 | dsisr has the value 18 | |
303 | dec has the value 22 | |
304 | sdr1 has the value 25 | |
305 | srr0 has the value 26 | |
306 | srr1 has the value 27 | |
307 | ||
81d4177b | 308 | The table is sorted. Suitable for searching by a binary search. */ |
252b5132 RH |
309 | |
310 | static const struct pd_reg pre_defined_registers[] = | |
311 | { | |
312 | { "cr.0", 0 }, /* Condition Registers */ | |
313 | { "cr.1", 1 }, | |
314 | { "cr.2", 2 }, | |
315 | { "cr.3", 3 }, | |
316 | { "cr.4", 4 }, | |
317 | { "cr.5", 5 }, | |
318 | { "cr.6", 6 }, | |
319 | { "cr.7", 7 }, | |
320 | ||
321 | { "cr0", 0 }, | |
322 | { "cr1", 1 }, | |
323 | { "cr2", 2 }, | |
324 | { "cr3", 3 }, | |
325 | { "cr4", 4 }, | |
326 | { "cr5", 5 }, | |
327 | { "cr6", 6 }, | |
328 | { "cr7", 7 }, | |
329 | ||
330 | { "ctr", 9 }, | |
331 | ||
332 | { "dar", 19 }, /* Data Access Register */ | |
333 | { "dec", 22 }, /* Decrementer */ | |
334 | { "dsisr", 18 }, /* Data Storage Interrupt Status Register */ | |
335 | ||
336 | { "f.0", 0 }, /* Floating point registers */ | |
81d4177b KH |
337 | { "f.1", 1 }, |
338 | { "f.10", 10 }, | |
339 | { "f.11", 11 }, | |
340 | { "f.12", 12 }, | |
341 | { "f.13", 13 }, | |
342 | { "f.14", 14 }, | |
343 | { "f.15", 15 }, | |
344 | { "f.16", 16 }, | |
345 | { "f.17", 17 }, | |
346 | { "f.18", 18 }, | |
347 | { "f.19", 19 }, | |
348 | { "f.2", 2 }, | |
349 | { "f.20", 20 }, | |
350 | { "f.21", 21 }, | |
351 | { "f.22", 22 }, | |
352 | { "f.23", 23 }, | |
353 | { "f.24", 24 }, | |
354 | { "f.25", 25 }, | |
355 | { "f.26", 26 }, | |
356 | { "f.27", 27 }, | |
357 | { "f.28", 28 }, | |
358 | { "f.29", 29 }, | |
359 | { "f.3", 3 }, | |
252b5132 RH |
360 | { "f.30", 30 }, |
361 | { "f.31", 31 }, | |
81d4177b KH |
362 | { "f.4", 4 }, |
363 | { "f.5", 5 }, | |
364 | { "f.6", 6 }, | |
365 | { "f.7", 7 }, | |
366 | { "f.8", 8 }, | |
367 | { "f.9", 9 }, | |
368 | ||
369 | { "f0", 0 }, | |
370 | { "f1", 1 }, | |
371 | { "f10", 10 }, | |
372 | { "f11", 11 }, | |
373 | { "f12", 12 }, | |
374 | { "f13", 13 }, | |
375 | { "f14", 14 }, | |
376 | { "f15", 15 }, | |
377 | { "f16", 16 }, | |
378 | { "f17", 17 }, | |
379 | { "f18", 18 }, | |
380 | { "f19", 19 }, | |
381 | { "f2", 2 }, | |
382 | { "f20", 20 }, | |
383 | { "f21", 21 }, | |
384 | { "f22", 22 }, | |
385 | { "f23", 23 }, | |
386 | { "f24", 24 }, | |
387 | { "f25", 25 }, | |
388 | { "f26", 26 }, | |
389 | { "f27", 27 }, | |
390 | { "f28", 28 }, | |
391 | { "f29", 29 }, | |
392 | { "f3", 3 }, | |
252b5132 RH |
393 | { "f30", 30 }, |
394 | { "f31", 31 }, | |
81d4177b KH |
395 | { "f4", 4 }, |
396 | { "f5", 5 }, | |
397 | { "f6", 6 }, | |
398 | { "f7", 7 }, | |
399 | { "f8", 8 }, | |
400 | { "f9", 9 }, | |
252b5132 RH |
401 | |
402 | { "fpscr", 0 }, | |
403 | ||
404 | { "lr", 8 }, /* Link Register */ | |
405 | ||
406 | { "pmr", 0 }, | |
407 | ||
408 | { "r.0", 0 }, /* General Purpose Registers */ | |
409 | { "r.1", 1 }, | |
410 | { "r.10", 10 }, | |
411 | { "r.11", 11 }, | |
412 | { "r.12", 12 }, | |
413 | { "r.13", 13 }, | |
414 | { "r.14", 14 }, | |
415 | { "r.15", 15 }, | |
416 | { "r.16", 16 }, | |
417 | { "r.17", 17 }, | |
418 | { "r.18", 18 }, | |
419 | { "r.19", 19 }, | |
420 | { "r.2", 2 }, | |
421 | { "r.20", 20 }, | |
422 | { "r.21", 21 }, | |
423 | { "r.22", 22 }, | |
424 | { "r.23", 23 }, | |
425 | { "r.24", 24 }, | |
426 | { "r.25", 25 }, | |
427 | { "r.26", 26 }, | |
428 | { "r.27", 27 }, | |
429 | { "r.28", 28 }, | |
430 | { "r.29", 29 }, | |
431 | { "r.3", 3 }, | |
432 | { "r.30", 30 }, | |
433 | { "r.31", 31 }, | |
434 | { "r.4", 4 }, | |
435 | { "r.5", 5 }, | |
436 | { "r.6", 6 }, | |
437 | { "r.7", 7 }, | |
438 | { "r.8", 8 }, | |
439 | { "r.9", 9 }, | |
440 | ||
441 | { "r.sp", 1 }, /* Stack Pointer */ | |
442 | ||
443 | { "r.toc", 2 }, /* Pointer to the table of contents */ | |
444 | ||
445 | { "r0", 0 }, /* More general purpose registers */ | |
446 | { "r1", 1 }, | |
447 | { "r10", 10 }, | |
448 | { "r11", 11 }, | |
449 | { "r12", 12 }, | |
450 | { "r13", 13 }, | |
451 | { "r14", 14 }, | |
452 | { "r15", 15 }, | |
453 | { "r16", 16 }, | |
454 | { "r17", 17 }, | |
455 | { "r18", 18 }, | |
456 | { "r19", 19 }, | |
457 | { "r2", 2 }, | |
458 | { "r20", 20 }, | |
459 | { "r21", 21 }, | |
460 | { "r22", 22 }, | |
461 | { "r23", 23 }, | |
462 | { "r24", 24 }, | |
463 | { "r25", 25 }, | |
464 | { "r26", 26 }, | |
465 | { "r27", 27 }, | |
466 | { "r28", 28 }, | |
467 | { "r29", 29 }, | |
468 | { "r3", 3 }, | |
469 | { "r30", 30 }, | |
470 | { "r31", 31 }, | |
471 | { "r4", 4 }, | |
472 | { "r5", 5 }, | |
473 | { "r6", 6 }, | |
474 | { "r7", 7 }, | |
475 | { "r8", 8 }, | |
476 | { "r9", 9 }, | |
477 | ||
478 | { "rtoc", 2 }, /* Table of contents */ | |
479 | ||
480 | { "sdr1", 25 }, /* Storage Description Register 1 */ | |
481 | ||
482 | { "sp", 1 }, | |
483 | ||
484 | { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */ | |
485 | { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */ | |
81d4177b | 486 | |
7a899fff | 487 | { "v.0", 0 }, /* Vector registers */ |
81d4177b KH |
488 | { "v.1", 1 }, |
489 | { "v.10", 10 }, | |
490 | { "v.11", 11 }, | |
491 | { "v.12", 12 }, | |
492 | { "v.13", 13 }, | |
493 | { "v.14", 14 }, | |
494 | { "v.15", 15 }, | |
495 | { "v.16", 16 }, | |
496 | { "v.17", 17 }, | |
497 | { "v.18", 18 }, | |
498 | { "v.19", 19 }, | |
499 | { "v.2", 2 }, | |
500 | { "v.20", 20 }, | |
501 | { "v.21", 21 }, | |
502 | { "v.22", 22 }, | |
503 | { "v.23", 23 }, | |
504 | { "v.24", 24 }, | |
505 | { "v.25", 25 }, | |
506 | { "v.26", 26 }, | |
507 | { "v.27", 27 }, | |
508 | { "v.28", 28 }, | |
509 | { "v.29", 29 }, | |
510 | { "v.3", 3 }, | |
7a899fff C |
511 | { "v.30", 30 }, |
512 | { "v.31", 31 }, | |
81d4177b KH |
513 | { "v.4", 4 }, |
514 | { "v.5", 5 }, | |
515 | { "v.6", 6 }, | |
516 | { "v.7", 7 }, | |
517 | { "v.8", 8 }, | |
518 | { "v.9", 9 }, | |
7a899fff C |
519 | |
520 | { "v0", 0 }, | |
81d4177b KH |
521 | { "v1", 1 }, |
522 | { "v10", 10 }, | |
523 | { "v11", 11 }, | |
524 | { "v12", 12 }, | |
525 | { "v13", 13 }, | |
526 | { "v14", 14 }, | |
527 | { "v15", 15 }, | |
528 | { "v16", 16 }, | |
529 | { "v17", 17 }, | |
530 | { "v18", 18 }, | |
531 | { "v19", 19 }, | |
532 | { "v2", 2 }, | |
533 | { "v20", 20 }, | |
534 | { "v21", 21 }, | |
535 | { "v22", 22 }, | |
536 | { "v23", 23 }, | |
537 | { "v24", 24 }, | |
538 | { "v25", 25 }, | |
539 | { "v26", 26 }, | |
540 | { "v27", 27 }, | |
541 | { "v28", 28 }, | |
542 | { "v29", 29 }, | |
543 | { "v3", 3 }, | |
7a899fff C |
544 | { "v30", 30 }, |
545 | { "v31", 31 }, | |
81d4177b KH |
546 | { "v4", 4 }, |
547 | { "v5", 5 }, | |
548 | { "v6", 6 }, | |
549 | { "v7", 7 }, | |
550 | { "v8", 8 }, | |
7a899fff | 551 | { "v9", 9 }, |
252b5132 RH |
552 | |
553 | { "xer", 1 }, | |
554 | ||
555 | }; | |
556 | ||
bc805888 | 557 | #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg)) |
252b5132 RH |
558 | |
559 | /* Given NAME, find the register number associated with that name, return | |
560 | the integer value associated with the given name or -1 on failure. */ | |
561 | ||
562 | static int reg_name_search | |
563 | PARAMS ((const struct pd_reg *, int, const char * name)); | |
564 | ||
565 | static int | |
566 | reg_name_search (regs, regcount, name) | |
567 | const struct pd_reg *regs; | |
568 | int regcount; | |
569 | const char *name; | |
570 | { | |
571 | int middle, low, high; | |
572 | int cmp; | |
573 | ||
574 | low = 0; | |
575 | high = regcount - 1; | |
576 | ||
577 | do | |
578 | { | |
579 | middle = (low + high) / 2; | |
580 | cmp = strcasecmp (name, regs[middle].name); | |
581 | if (cmp < 0) | |
582 | high = middle - 1; | |
583 | else if (cmp > 0) | |
584 | low = middle + 1; | |
585 | else | |
586 | return regs[middle].value; | |
587 | } | |
588 | while (low <= high); | |
589 | ||
590 | return -1; | |
591 | } | |
592 | ||
593 | /* | |
99a814a1 | 594 | * Summary of register_name. |
252b5132 RH |
595 | * |
596 | * in: Input_line_pointer points to 1st char of operand. | |
597 | * | |
598 | * out: A expressionS. | |
599 | * The operand may have been a register: in this case, X_op == O_register, | |
600 | * X_add_number is set to the register number, and truth is returned. | |
601 | * Input_line_pointer->(next non-blank) char after operand, or is in its | |
602 | * original state. | |
603 | */ | |
604 | ||
605 | static boolean | |
606 | register_name (expressionP) | |
607 | expressionS *expressionP; | |
608 | { | |
609 | int reg_number; | |
610 | char *name; | |
611 | char *start; | |
612 | char c; | |
613 | ||
99a814a1 | 614 | /* Find the spelling of the operand. */ |
252b5132 | 615 | start = name = input_line_pointer; |
3882b010 | 616 | if (name[0] == '%' && ISALPHA (name[1])) |
252b5132 RH |
617 | name = ++input_line_pointer; |
618 | ||
3882b010 | 619 | else if (!reg_names_p || !ISALPHA (name[0])) |
252b5132 RH |
620 | return false; |
621 | ||
622 | c = get_symbol_end (); | |
623 | reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name); | |
624 | ||
468cced8 AM |
625 | /* Put back the delimiting char. */ |
626 | *input_line_pointer = c; | |
627 | ||
99a814a1 | 628 | /* Look to see if it's in the register table. */ |
81d4177b | 629 | if (reg_number >= 0) |
252b5132 RH |
630 | { |
631 | expressionP->X_op = O_register; | |
632 | expressionP->X_add_number = reg_number; | |
81d4177b | 633 | |
99a814a1 | 634 | /* Make the rest nice. */ |
252b5132 RH |
635 | expressionP->X_add_symbol = NULL; |
636 | expressionP->X_op_symbol = NULL; | |
252b5132 RH |
637 | return true; |
638 | } | |
468cced8 AM |
639 | |
640 | /* Reset the line as if we had not done anything. */ | |
641 | input_line_pointer = start; | |
642 | return false; | |
252b5132 RH |
643 | } |
644 | \f | |
645 | /* This function is called for each symbol seen in an expression. It | |
646 | handles the special parsing which PowerPC assemblers are supposed | |
647 | to use for condition codes. */ | |
648 | ||
649 | /* Whether to do the special parsing. */ | |
650 | static boolean cr_operand; | |
651 | ||
652 | /* Names to recognize in a condition code. This table is sorted. */ | |
653 | static const struct pd_reg cr_names[] = | |
654 | { | |
655 | { "cr0", 0 }, | |
656 | { "cr1", 1 }, | |
657 | { "cr2", 2 }, | |
658 | { "cr3", 3 }, | |
659 | { "cr4", 4 }, | |
660 | { "cr5", 5 }, | |
661 | { "cr6", 6 }, | |
662 | { "cr7", 7 }, | |
663 | { "eq", 2 }, | |
664 | { "gt", 1 }, | |
665 | { "lt", 0 }, | |
666 | { "so", 3 }, | |
667 | { "un", 3 } | |
668 | }; | |
669 | ||
670 | /* Parsing function. This returns non-zero if it recognized an | |
671 | expression. */ | |
672 | ||
673 | int | |
674 | ppc_parse_name (name, expr) | |
675 | const char *name; | |
676 | expressionS *expr; | |
677 | { | |
678 | int val; | |
679 | ||
680 | if (! cr_operand) | |
681 | return 0; | |
682 | ||
683 | val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0], | |
684 | name); | |
685 | if (val < 0) | |
686 | return 0; | |
687 | ||
688 | expr->X_op = O_constant; | |
689 | expr->X_add_number = val; | |
690 | ||
691 | return 1; | |
692 | } | |
693 | \f | |
694 | /* Local variables. */ | |
695 | ||
696 | /* The type of processor we are assembling for. This is one or more | |
697 | of the PPC_OPCODE flags defined in opcode/ppc.h. */ | |
698 | static int ppc_cpu = 0; | |
699 | ||
700 | /* The size of the processor we are assembling for. This is either | |
701 | PPC_OPCODE_32 or PPC_OPCODE_64. */ | |
15c1449b AM |
702 | static unsigned long ppc_size = (BFD_DEFAULT_TARGET_SIZE == 64 |
703 | ? PPC_OPCODE_64 | |
704 | : PPC_OPCODE_32); | |
252b5132 | 705 | |
99a814a1 | 706 | /* Whether to target xcoff64. */ |
7f6d05e8 CP |
707 | static int ppc_xcoff64 = 0; |
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 | |
724 | #define SOLARIS_P true | |
725 | #else | |
726 | #define SOLARIS_P false | |
727 | #endif | |
728 | ||
729 | static boolean msolaris = SOLARIS_P; | |
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" */ | |
796 | #endif /* OBJ_ELF */ | |
797 | \f | |
798 | #ifdef OBJ_ELF | |
15c1449b | 799 | const char *const md_shortopts = "b:l:usm:K:VQ:"; |
252b5132 | 800 | #else |
15c1449b | 801 | const char *const md_shortopts = "um:"; |
252b5132 | 802 | #endif |
15c1449b | 803 | const struct option md_longopts[] = { |
252b5132 RH |
804 | {NULL, no_argument, NULL, 0} |
805 | }; | |
15c1449b | 806 | const size_t md_longopts_size = sizeof (md_longopts); |
252b5132 RH |
807 | |
808 | int | |
809 | md_parse_option (c, arg) | |
810 | int c; | |
811 | char *arg; | |
812 | { | |
813 | switch (c) | |
814 | { | |
815 | case 'u': | |
816 | /* -u means that any undefined symbols should be treated as | |
817 | external, which is the default for gas anyhow. */ | |
818 | break; | |
819 | ||
820 | #ifdef OBJ_ELF | |
821 | case 'l': | |
822 | /* Solaris as takes -le (presumably for little endian). For completeness | |
99a814a1 | 823 | sake, recognize -be also. */ |
252b5132 RH |
824 | if (strcmp (arg, "e") == 0) |
825 | { | |
826 | target_big_endian = 0; | |
827 | set_target_endian = 1; | |
828 | } | |
829 | else | |
830 | return 0; | |
831 | ||
832 | break; | |
833 | ||
834 | case 'b': | |
835 | if (strcmp (arg, "e") == 0) | |
836 | { | |
837 | target_big_endian = 1; | |
838 | set_target_endian = 1; | |
839 | } | |
840 | else | |
841 | return 0; | |
842 | ||
843 | break; | |
844 | ||
845 | case 'K': | |
99a814a1 | 846 | /* Recognize -K PIC. */ |
252b5132 RH |
847 | if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0) |
848 | { | |
849 | shlib = SHLIB_PIC; | |
850 | ppc_flags |= EF_PPC_RELOCATABLE_LIB; | |
851 | } | |
852 | else | |
853 | return 0; | |
854 | ||
855 | break; | |
856 | #endif | |
857 | ||
7f6d05e8 CP |
858 | /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */ |
859 | case 'a': | |
860 | if (strcmp (arg, "64") == 0) | |
861 | ppc_xcoff64 = 1; | |
862 | else if (strcmp (arg, "32") == 0) | |
863 | ppc_xcoff64 = 0; | |
864 | else | |
865 | return 0; | |
866 | break; | |
81d4177b | 867 | |
252b5132 | 868 | case 'm': |
0baf16f2 AM |
869 | /* Most CPU's are 32 bit. Exceptions are listed below. */ |
870 | ppc_size = PPC_OPCODE_32; | |
871 | ||
252b5132 | 872 | /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2 |
99a814a1 | 873 | (RIOS2). */ |
252b5132 RH |
874 | if (strcmp (arg, "pwrx") == 0 || strcmp (arg, "pwr2") == 0) |
875 | ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2; | |
876 | /* -mpwr means to assemble for the IBM POWER (RIOS1). */ | |
877 | else if (strcmp (arg, "pwr") == 0) | |
878 | ppc_cpu = PPC_OPCODE_POWER; | |
23e1d84c | 879 | /* -m601 means to assemble for the PowerPC 601, which includes |
99a814a1 | 880 | instructions that are holdovers from the Power. */ |
252b5132 RH |
881 | else if (strcmp (arg, "601") == 0) |
882 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_601; | |
883 | /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the | |
23e1d84c | 884 | PowerPC 603/604. */ |
252b5132 RH |
885 | else if (strcmp (arg, "ppc") == 0 |
886 | || strcmp (arg, "ppc32") == 0 | |
252b5132 RH |
887 | || strcmp (arg, "603") == 0 |
888 | || strcmp (arg, "604") == 0) | |
889 | ppc_cpu = PPC_OPCODE_PPC; | |
23e1d84c | 890 | /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */ |
418c1742 MG |
891 | else if (strcmp (arg, "403") == 0 |
892 | || strcmp (arg, "405") == 0) | |
893 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_403; | |
894 | else if (strcmp (arg, "7400") == 0 | |
895 | || strcmp (arg, "7410") == 0 | |
896 | || strcmp (arg, "7450") == 0 | |
897 | || strcmp (arg, "7455") == 0) | |
99a814a1 | 898 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC; |
418c1742 | 899 | else if (strcmp (arg, "altivec") == 0) |
8a588659 MG |
900 | { |
901 | if (ppc_cpu == 0) | |
902 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC; | |
903 | else | |
904 | ppc_cpu |= PPC_OPCODE_ALTIVEC; | |
905 | } | |
252b5132 | 906 | /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC |
99a814a1 | 907 | 620. */ |
252b5132 RH |
908 | else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0) |
909 | { | |
418c1742 | 910 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_64; |
252b5132 RH |
911 | ppc_size = PPC_OPCODE_64; |
912 | } | |
d0e9a01c RH |
913 | else if (strcmp (arg, "ppc64bridge") == 0) |
914 | { | |
418c1742 MG |
915 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_64_BRIDGE | PPC_OPCODE_64; |
916 | ppc_size = PPC_OPCODE_64; | |
917 | } | |
918 | /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */ | |
919 | else if (strcmp (arg, "booke") == 0 || strcmp (arg, "booke32") == 0) | |
920 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE; | |
921 | /* -mbooke64 means enable 64-bit BookE support. */ | |
922 | else if (strcmp (arg, "booke64") == 0) | |
923 | { | |
5d6255fe | 924 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | |
418c1742 | 925 | PPC_OPCODE_BOOKE64 | PPC_OPCODE_64; |
d0e9a01c RH |
926 | ppc_size = PPC_OPCODE_64; |
927 | } | |
23e1d84c AM |
928 | else if (strcmp (arg, "power4") == 0) |
929 | { | |
930 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4; | |
931 | ppc_size = PPC_OPCODE_64; | |
932 | } | |
252b5132 RH |
933 | /* -mcom means assemble for the common intersection between Power |
934 | and PowerPC. At present, we just allow the union, rather | |
935 | than the intersection. */ | |
936 | else if (strcmp (arg, "com") == 0) | |
937 | ppc_cpu = PPC_OPCODE_COMMON; | |
938 | /* -many means to assemble for any architecture (PWR/PWRX/PPC). */ | |
939 | else if (strcmp (arg, "any") == 0) | |
940 | ppc_cpu = PPC_OPCODE_ANY; | |
941 | ||
942 | else if (strcmp (arg, "regnames") == 0) | |
943 | reg_names_p = true; | |
944 | ||
945 | else if (strcmp (arg, "no-regnames") == 0) | |
946 | reg_names_p = false; | |
947 | ||
948 | #ifdef OBJ_ELF | |
99a814a1 AM |
949 | /* -mrelocatable/-mrelocatable-lib -- warn about initializations |
950 | that require relocation. */ | |
252b5132 RH |
951 | else if (strcmp (arg, "relocatable") == 0) |
952 | { | |
5d6f4f16 | 953 | shlib = SHLIB_MRELOCATABLE; |
252b5132 RH |
954 | ppc_flags |= EF_PPC_RELOCATABLE; |
955 | } | |
956 | ||
957 | else if (strcmp (arg, "relocatable-lib") == 0) | |
958 | { | |
5d6f4f16 | 959 | shlib = SHLIB_MRELOCATABLE; |
252b5132 RH |
960 | ppc_flags |= EF_PPC_RELOCATABLE_LIB; |
961 | } | |
962 | ||
99a814a1 | 963 | /* -memb, set embedded bit. */ |
252b5132 RH |
964 | else if (strcmp (arg, "emb") == 0) |
965 | ppc_flags |= EF_PPC_EMB; | |
966 | ||
99a814a1 AM |
967 | /* -mlittle/-mbig set the endianess. */ |
968 | else if (strcmp (arg, "little") == 0 | |
969 | || strcmp (arg, "little-endian") == 0) | |
252b5132 RH |
970 | { |
971 | target_big_endian = 0; | |
972 | set_target_endian = 1; | |
973 | } | |
974 | ||
975 | else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0) | |
976 | { | |
977 | target_big_endian = 1; | |
978 | set_target_endian = 1; | |
979 | } | |
980 | ||
981 | else if (strcmp (arg, "solaris") == 0) | |
982 | { | |
983 | msolaris = true; | |
984 | ppc_comment_chars = ppc_solaris_comment_chars; | |
985 | } | |
986 | ||
987 | else if (strcmp (arg, "no-solaris") == 0) | |
988 | { | |
989 | msolaris = false; | |
990 | ppc_comment_chars = ppc_eabi_comment_chars; | |
991 | } | |
992 | #endif | |
993 | else | |
994 | { | |
995 | as_bad (_("invalid switch -m%s"), arg); | |
996 | return 0; | |
997 | } | |
998 | break; | |
999 | ||
1000 | #ifdef OBJ_ELF | |
1001 | /* -V: SVR4 argument to print version ID. */ | |
1002 | case 'V': | |
1003 | print_version_id (); | |
1004 | break; | |
1005 | ||
1006 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section | |
1007 | should be emitted or not. FIXME: Not implemented. */ | |
1008 | case 'Q': | |
1009 | break; | |
1010 | ||
1011 | /* Solaris takes -s to specify that .stabs go in a .stabs section, | |
1012 | rather than .stabs.excl, which is ignored by the linker. | |
1013 | FIXME: Not implemented. */ | |
1014 | case 's': | |
1015 | if (arg) | |
1016 | return 0; | |
1017 | ||
1018 | break; | |
1019 | #endif | |
1020 | ||
1021 | default: | |
1022 | return 0; | |
1023 | } | |
1024 | ||
1025 | return 1; | |
1026 | } | |
1027 | ||
1028 | void | |
1029 | md_show_usage (stream) | |
1030 | FILE *stream; | |
1031 | { | |
bc805888 | 1032 | fprintf (stream, _("\ |
252b5132 RH |
1033 | PowerPC options:\n\ |
1034 | -u ignored\n\ | |
23e1d84c AM |
1035 | -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\ |
1036 | -mpwr generate code for POWER (RIOS1)\n\ | |
1037 | -m601 generate code for PowerPC 601\n\ | |
418c1742 | 1038 | -mppc, -mppc32, -m603, -m604\n\ |
23e1d84c AM |
1039 | generate code for PowerPC 603/604\n\ |
1040 | -m403, -m405 generate code for PowerPC 403/405\n\ | |
f5c120c5 | 1041 | -m7400, -m7410, -m7450, -m7455\n\ |
23e1d84c AM |
1042 | generate code For PowerPC 7400/7410/7450/7455\n\ |
1043 | -mppc64, -m620 generate code for PowerPC 620/625/630\n\ | |
d0e9a01c | 1044 | -mppc64bridge generate code for PowerPC 64, including bridge insns\n\ |
a09cf9bd MG |
1045 | -mbooke64 generate code for 64-bit PowerPC BookE\n\ |
1046 | -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\ | |
23e1d84c | 1047 | -mpower4 generate code for Power4 architecture\n\ |
f5c120c5 | 1048 | -maltivec generate code for AltiVec\n\ |
252b5132 RH |
1049 | -mcom generate code Power/PowerPC common instructions\n\ |
1050 | -many generate code for any architecture (PWR/PWRX/PPC)\n\ | |
1051 | -mregnames Allow symbolic names for registers\n\ | |
1052 | -mno-regnames Do not allow symbolic names for registers\n")); | |
1053 | #ifdef OBJ_ELF | |
bc805888 | 1054 | fprintf (stream, _("\ |
252b5132 RH |
1055 | -mrelocatable support for GCC's -mrelocatble option\n\ |
1056 | -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\ | |
1057 | -memb set PPC_EMB bit in ELF flags\n\ | |
1058 | -mlittle, -mlittle-endian\n\ | |
1059 | generate code for a little endian machine\n\ | |
1060 | -mbig, -mbig-endian generate code for a big endian machine\n\ | |
1061 | -msolaris generate code for Solaris\n\ | |
1062 | -mno-solaris do not generate code for Solaris\n\ | |
1063 | -V print assembler version number\n\ | |
1064 | -Qy, -Qn ignored\n")); | |
1065 | #endif | |
1066 | } | |
1067 | \f | |
1068 | /* Set ppc_cpu if it is not already set. */ | |
1069 | ||
1070 | static void | |
1071 | ppc_set_cpu () | |
1072 | { | |
1073 | const char *default_os = TARGET_OS; | |
1074 | const char *default_cpu = TARGET_CPU; | |
1075 | ||
1076 | if (ppc_cpu == 0) | |
1077 | { | |
1078 | if (strncmp (default_os, "aix", 3) == 0 | |
1079 | && default_os[3] >= '4' && default_os[3] <= '9') | |
1080 | ppc_cpu = PPC_OPCODE_COMMON; | |
1081 | else if (strncmp (default_os, "aix3", 4) == 0) | |
1082 | ppc_cpu = PPC_OPCODE_POWER; | |
1083 | else if (strcmp (default_cpu, "rs6000") == 0) | |
1084 | ppc_cpu = PPC_OPCODE_POWER; | |
0baf16f2 | 1085 | else if (strncmp (default_cpu, "powerpc", 7) == 0) |
252b5132 RH |
1086 | ppc_cpu = PPC_OPCODE_PPC; |
1087 | else | |
99a814a1 AM |
1088 | as_fatal (_("Unknown default cpu = %s, os = %s"), |
1089 | default_cpu, default_os); | |
252b5132 RH |
1090 | } |
1091 | } | |
1092 | ||
1093 | /* Figure out the BFD architecture to use. */ | |
1094 | ||
1095 | enum bfd_architecture | |
1096 | ppc_arch () | |
1097 | { | |
1098 | const char *default_cpu = TARGET_CPU; | |
1099 | ppc_set_cpu (); | |
1100 | ||
1101 | if ((ppc_cpu & PPC_OPCODE_PPC) != 0) | |
1102 | return bfd_arch_powerpc; | |
1103 | else if ((ppc_cpu & PPC_OPCODE_POWER) != 0) | |
1104 | return bfd_arch_rs6000; | |
1105 | else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0) | |
1106 | { | |
1107 | if (strcmp (default_cpu, "rs6000") == 0) | |
1108 | return bfd_arch_rs6000; | |
0baf16f2 | 1109 | else if (strncmp (default_cpu, "powerpc", 7) == 0) |
252b5132 RH |
1110 | return bfd_arch_powerpc; |
1111 | } | |
1112 | ||
1113 | as_fatal (_("Neither Power nor PowerPC opcodes were selected.")); | |
1114 | return bfd_arch_unknown; | |
1115 | } | |
1116 | ||
7f6d05e8 CP |
1117 | unsigned long |
1118 | ppc_mach () | |
1119 | { | |
99a814a1 | 1120 | return ppc_size == PPC_OPCODE_64 ? 620 : 0; |
7f6d05e8 CP |
1121 | } |
1122 | ||
0baf16f2 | 1123 | #ifdef OBJ_XCOFF |
7f6d05e8 | 1124 | int |
99a814a1 | 1125 | ppc_subseg_align () |
7f6d05e8 | 1126 | { |
99a814a1 | 1127 | return ppc_xcoff64 ? 3 : 2; |
7f6d05e8 | 1128 | } |
0baf16f2 | 1129 | #endif |
7f6d05e8 | 1130 | |
81d4177b | 1131 | extern char* |
99a814a1 | 1132 | ppc_target_format () |
7f6d05e8 CP |
1133 | { |
1134 | #ifdef OBJ_COFF | |
1135 | #ifdef TE_PE | |
99a814a1 | 1136 | return target_big_endian ? "pe-powerpc" : "pe-powerpcle"; |
7f6d05e8 | 1137 | #elif TE_POWERMAC |
0baf16f2 | 1138 | return "xcoff-powermac"; |
7f6d05e8 | 1139 | #else |
eb1e0e80 NC |
1140 | # ifdef TE_AIX5 |
1141 | return (ppc_xcoff64 ? "aix5coff64-rs6000" : "aixcoff-rs6000"); | |
1142 | # else | |
1143 | return (ppc_xcoff64 ? "aixcoff64-rs6000" : "aixcoff-rs6000"); | |
1144 | # endif | |
7f6d05e8 | 1145 | #endif |
7f6d05e8 CP |
1146 | #endif |
1147 | #ifdef OBJ_ELF | |
15c1449b AM |
1148 | boolean is64 = BFD_DEFAULT_TARGET_SIZE == 64 && ppc_size == PPC_OPCODE_64; |
1149 | ||
0baf16f2 | 1150 | return (target_big_endian |
15c1449b AM |
1151 | ? (is64 ? "elf64-powerpc" : "elf32-powerpc") |
1152 | : (is64 ? "elf64-powerpcle" : "elf32-powerpcle")); | |
7f6d05e8 CP |
1153 | #endif |
1154 | } | |
1155 | ||
252b5132 RH |
1156 | /* This function is called when the assembler starts up. It is called |
1157 | after the options have been parsed and the output file has been | |
1158 | opened. */ | |
1159 | ||
1160 | void | |
1161 | md_begin () | |
1162 | { | |
1163 | register const struct powerpc_opcode *op; | |
1164 | const struct powerpc_opcode *op_end; | |
1165 | const struct powerpc_macro *macro; | |
1166 | const struct powerpc_macro *macro_end; | |
1167 | boolean dup_insn = false; | |
1168 | ||
1169 | ppc_set_cpu (); | |
1170 | ||
1171 | #ifdef OBJ_ELF | |
81d4177b | 1172 | /* Set the ELF flags if desired. */ |
252b5132 RH |
1173 | if (ppc_flags && !msolaris) |
1174 | bfd_set_private_flags (stdoutput, ppc_flags); | |
1175 | #endif | |
1176 | ||
1177 | /* Insert the opcodes into a hash table. */ | |
1178 | ppc_hash = hash_new (); | |
1179 | ||
1180 | op_end = powerpc_opcodes + powerpc_num_opcodes; | |
1181 | for (op = powerpc_opcodes; op < op_end; op++) | |
1182 | { | |
1183 | know ((op->opcode & op->mask) == op->opcode); | |
1184 | ||
1185 | if ((op->flags & ppc_cpu) != 0 | |
1186 | && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0 | |
d0e9a01c | 1187 | || (op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == ppc_size |
23e1d84c AM |
1188 | || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0) |
1189 | && ((op->flags & (PPC_OPCODE_POWER4 | PPC_OPCODE_NOPOWER4)) == 0 | |
1190 | || ((op->flags & PPC_OPCODE_POWER4) | |
1191 | == (ppc_cpu & PPC_OPCODE_POWER4)))) | |
252b5132 RH |
1192 | { |
1193 | const char *retval; | |
1194 | ||
1195 | retval = hash_insert (ppc_hash, op->name, (PTR) op); | |
1196 | if (retval != (const char *) NULL) | |
1197 | { | |
99a814a1 | 1198 | /* Ignore Power duplicates for -m601. */ |
252b5132 RH |
1199 | if ((ppc_cpu & PPC_OPCODE_601) != 0 |
1200 | && (op->flags & PPC_OPCODE_POWER) != 0) | |
1201 | continue; | |
1202 | ||
99a814a1 AM |
1203 | as_bad (_("Internal assembler error for instruction %s"), |
1204 | op->name); | |
252b5132 RH |
1205 | dup_insn = true; |
1206 | } | |
1207 | } | |
1208 | } | |
1209 | ||
1210 | /* Insert the macros into a hash table. */ | |
1211 | ppc_macro_hash = hash_new (); | |
1212 | ||
1213 | macro_end = powerpc_macros + powerpc_num_macros; | |
1214 | for (macro = powerpc_macros; macro < macro_end; macro++) | |
1215 | { | |
1216 | if ((macro->flags & ppc_cpu) != 0) | |
1217 | { | |
1218 | const char *retval; | |
1219 | ||
1220 | retval = hash_insert (ppc_macro_hash, macro->name, (PTR) macro); | |
1221 | if (retval != (const char *) NULL) | |
1222 | { | |
1223 | as_bad (_("Internal assembler error for macro %s"), macro->name); | |
1224 | dup_insn = true; | |
1225 | } | |
1226 | } | |
1227 | } | |
1228 | ||
1229 | if (dup_insn) | |
1230 | abort (); | |
1231 | ||
99a814a1 AM |
1232 | /* Tell the main code what the endianness is if it is not overidden |
1233 | by the user. */ | |
252b5132 RH |
1234 | if (!set_target_endian) |
1235 | { | |
1236 | set_target_endian = 1; | |
1237 | target_big_endian = PPC_BIG_ENDIAN; | |
1238 | } | |
1239 | ||
1240 | #ifdef OBJ_XCOFF | |
1241 | ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG); | |
1242 | ||
1243 | /* Create dummy symbols to serve as initial csects. This forces the | |
1244 | text csects to precede the data csects. These symbols will not | |
1245 | be output. */ | |
1246 | ppc_text_csects = symbol_make ("dummy\001"); | |
809ffe0d | 1247 | symbol_get_tc (ppc_text_csects)->within = ppc_text_csects; |
252b5132 | 1248 | ppc_data_csects = symbol_make ("dummy\001"); |
809ffe0d | 1249 | symbol_get_tc (ppc_data_csects)->within = ppc_data_csects; |
252b5132 RH |
1250 | #endif |
1251 | ||
1252 | #ifdef TE_PE | |
1253 | ||
1254 | ppc_current_section = text_section; | |
81d4177b | 1255 | ppc_previous_section = 0; |
252b5132 RH |
1256 | |
1257 | #endif | |
1258 | } | |
1259 | ||
1260 | /* Insert an operand value into an instruction. */ | |
1261 | ||
1262 | static unsigned long | |
1263 | ppc_insert_operand (insn, operand, val, file, line) | |
1264 | unsigned long insn; | |
1265 | const struct powerpc_operand *operand; | |
1266 | offsetT val; | |
1267 | char *file; | |
1268 | unsigned int line; | |
1269 | { | |
1270 | if (operand->bits != 32) | |
1271 | { | |
1272 | long min, max; | |
1273 | offsetT test; | |
1274 | ||
1275 | if ((operand->flags & PPC_OPERAND_SIGNED) != 0) | |
1276 | { | |
d0e9a01c | 1277 | if ((operand->flags & PPC_OPERAND_SIGNOPT) != 0) |
252b5132 RH |
1278 | max = (1 << operand->bits) - 1; |
1279 | else | |
1280 | max = (1 << (operand->bits - 1)) - 1; | |
1281 | min = - (1 << (operand->bits - 1)); | |
1282 | ||
1283 | if (ppc_size == PPC_OPCODE_32) | |
1284 | { | |
1285 | /* Some people write 32 bit hex constants with the sign | |
1286 | extension done by hand. This shouldn't really be | |
1287 | valid, but, to permit this code to assemble on a 64 | |
1288 | bit host, we sign extend the 32 bit value. */ | |
1289 | if (val > 0 | |
92161534 ILT |
1290 | && (val & (offsetT) 0x80000000) != 0 |
1291 | && (val & (offsetT) 0xffffffff) == val) | |
252b5132 RH |
1292 | { |
1293 | val -= 0x80000000; | |
1294 | val -= 0x80000000; | |
1295 | } | |
1296 | } | |
1297 | } | |
1298 | else | |
1299 | { | |
1300 | max = (1 << operand->bits) - 1; | |
1301 | min = 0; | |
1302 | } | |
1303 | ||
1304 | if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0) | |
1305 | test = - val; | |
1306 | else | |
1307 | test = val; | |
1308 | ||
1309 | if (test < (offsetT) min || test > (offsetT) max) | |
1310 | { | |
1311 | const char *err = | |
1312 | _("operand out of range (%s not between %ld and %ld)"); | |
1313 | char buf[100]; | |
1314 | ||
1315 | sprint_value (buf, test); | |
0baf16f2 | 1316 | as_bad_where (file, line, err, buf, min, max); |
252b5132 RH |
1317 | } |
1318 | } | |
1319 | ||
1320 | if (operand->insert) | |
1321 | { | |
1322 | const char *errmsg; | |
1323 | ||
1324 | errmsg = NULL; | |
802a735e | 1325 | insn = (*operand->insert) (insn, (long) val, ppc_cpu | ppc_size, &errmsg); |
252b5132 | 1326 | if (errmsg != (const char *) NULL) |
0baf16f2 | 1327 | as_bad_where (file, line, errmsg); |
252b5132 RH |
1328 | } |
1329 | else | |
1330 | insn |= (((long) val & ((1 << operand->bits) - 1)) | |
1331 | << operand->shift); | |
1332 | ||
1333 | return insn; | |
1334 | } | |
1335 | ||
1336 | \f | |
1337 | #ifdef OBJ_ELF | |
1338 | /* Parse @got, etc. and return the desired relocation. */ | |
1339 | static bfd_reloc_code_real_type | |
1340 | ppc_elf_suffix (str_p, exp_p) | |
1341 | char **str_p; | |
1342 | expressionS *exp_p; | |
1343 | { | |
1344 | struct map_bfd { | |
1345 | char *string; | |
1346 | int length; | |
15c1449b | 1347 | int reloc; |
252b5132 RH |
1348 | }; |
1349 | ||
1350 | char ident[20]; | |
1351 | char *str = *str_p; | |
1352 | char *str2; | |
1353 | int ch; | |
1354 | int len; | |
15c1449b | 1355 | const struct map_bfd *ptr; |
252b5132 | 1356 | |
bc805888 | 1357 | #define MAP(str,reloc) { str, sizeof (str)-1, reloc } |
252b5132 | 1358 | |
15c1449b AM |
1359 | static const struct map_bfd mapping[] = { |
1360 | MAP ("l", (int) BFD_RELOC_LO16), | |
1361 | MAP ("h", (int) BFD_RELOC_HI16), | |
1362 | MAP ("ha", (int) BFD_RELOC_HI16_S), | |
1363 | MAP ("brtaken", (int) BFD_RELOC_PPC_B16_BRTAKEN), | |
1364 | MAP ("brntaken", (int) BFD_RELOC_PPC_B16_BRNTAKEN), | |
1365 | MAP ("got", (int) BFD_RELOC_16_GOTOFF), | |
1366 | MAP ("got@l", (int) BFD_RELOC_LO16_GOTOFF), | |
1367 | MAP ("got@h", (int) BFD_RELOC_HI16_GOTOFF), | |
1368 | MAP ("got@ha", (int) BFD_RELOC_HI16_S_GOTOFF), | |
1369 | MAP ("fixup", (int) BFD_RELOC_CTOR), /* warning with -mrelocatable */ | |
1370 | MAP ("plt", (int) BFD_RELOC_24_PLT_PCREL), | |
1371 | MAP ("pltrel24", (int) BFD_RELOC_24_PLT_PCREL), | |
1372 | MAP ("copy", (int) BFD_RELOC_PPC_COPY), | |
1373 | MAP ("globdat", (int) BFD_RELOC_PPC_GLOB_DAT), | |
1374 | MAP ("local24pc", (int) BFD_RELOC_PPC_LOCAL24PC), | |
1375 | MAP ("local", (int) BFD_RELOC_PPC_LOCAL24PC), | |
1376 | MAP ("pltrel", (int) BFD_RELOC_32_PLT_PCREL), | |
1377 | MAP ("plt@l", (int) BFD_RELOC_LO16_PLTOFF), | |
1378 | MAP ("plt@h", (int) BFD_RELOC_HI16_PLTOFF), | |
1379 | MAP ("plt@ha", (int) BFD_RELOC_HI16_S_PLTOFF), | |
1380 | MAP ("sdarel", (int) BFD_RELOC_GPREL16), | |
1cfc59d5 | 1381 | MAP ("sectoff", (int) BFD_RELOC_16_BASEREL), |
15c1449b AM |
1382 | MAP ("sectoff@l", (int) BFD_RELOC_LO16_BASEREL), |
1383 | MAP ("sectoff@h", (int) BFD_RELOC_HI16_BASEREL), | |
1384 | MAP ("sectoff@ha", (int) BFD_RELOC_HI16_S_BASEREL), | |
1385 | MAP ("naddr", (int) BFD_RELOC_PPC_EMB_NADDR32), | |
1386 | MAP ("naddr16", (int) BFD_RELOC_PPC_EMB_NADDR16), | |
1387 | MAP ("naddr@l", (int) BFD_RELOC_PPC_EMB_NADDR16_LO), | |
1388 | MAP ("naddr@h", (int) BFD_RELOC_PPC_EMB_NADDR16_HI), | |
1389 | MAP ("naddr@ha", (int) BFD_RELOC_PPC_EMB_NADDR16_HA), | |
1390 | MAP ("sdai16", (int) BFD_RELOC_PPC_EMB_SDAI16), | |
1391 | MAP ("sda2rel", (int) BFD_RELOC_PPC_EMB_SDA2REL), | |
1392 | MAP ("sda2i16", (int) BFD_RELOC_PPC_EMB_SDA2I16), | |
1393 | MAP ("sda21", (int) BFD_RELOC_PPC_EMB_SDA21), | |
1394 | MAP ("mrkref", (int) BFD_RELOC_PPC_EMB_MRKREF), | |
1395 | MAP ("relsect", (int) BFD_RELOC_PPC_EMB_RELSEC16), | |
1396 | MAP ("relsect@l", (int) BFD_RELOC_PPC_EMB_RELST_LO), | |
1397 | MAP ("relsect@h", (int) BFD_RELOC_PPC_EMB_RELST_HI), | |
1398 | MAP ("relsect@ha", (int) BFD_RELOC_PPC_EMB_RELST_HA), | |
1399 | MAP ("bitfld", (int) BFD_RELOC_PPC_EMB_BIT_FLD), | |
1400 | MAP ("relsda", (int) BFD_RELOC_PPC_EMB_RELSDA), | |
1401 | MAP ("xgot", (int) BFD_RELOC_PPC_TOC16), | |
0baf16f2 | 1402 | #if BFD_DEFAULT_TARGET_SIZE == 64 |
15c1449b AM |
1403 | MAP ("higher", - (int) BFD_RELOC_PPC64_HIGHER), |
1404 | MAP ("highera", - (int) BFD_RELOC_PPC64_HIGHER_S), | |
1405 | MAP ("highest", - (int) BFD_RELOC_PPC64_HIGHEST), | |
1406 | MAP ("highesta", - (int) BFD_RELOC_PPC64_HIGHEST_S), | |
1407 | MAP ("tocbase", - (int) BFD_RELOC_PPC64_TOC), | |
1408 | MAP ("toc", - (int) BFD_RELOC_PPC_TOC16), | |
1409 | MAP ("toc@l", - (int) BFD_RELOC_PPC64_TOC16_LO), | |
1410 | MAP ("toc@h", - (int) BFD_RELOC_PPC64_TOC16_HI), | |
1411 | MAP ("toc@ha", - (int) BFD_RELOC_PPC64_TOC16_HA), | |
0baf16f2 | 1412 | #endif |
15c1449b | 1413 | { (char *) 0, 0, (int) BFD_RELOC_UNUSED } |
252b5132 RH |
1414 | }; |
1415 | ||
1416 | if (*str++ != '@') | |
1417 | return BFD_RELOC_UNUSED; | |
1418 | ||
1419 | for (ch = *str, str2 = ident; | |
1420 | (str2 < ident + sizeof (ident) - 1 | |
3882b010 | 1421 | && (ISALNUM (ch) || ch == '@')); |
252b5132 RH |
1422 | ch = *++str) |
1423 | { | |
3882b010 | 1424 | *str2++ = TOLOWER (ch); |
252b5132 RH |
1425 | } |
1426 | ||
1427 | *str2 = '\0'; | |
1428 | len = str2 - ident; | |
1429 | ||
1430 | ch = ident[0]; | |
1431 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
1432 | if (ch == ptr->string[0] | |
1433 | && len == ptr->length | |
1434 | && memcmp (ident, ptr->string, ptr->length) == 0) | |
1435 | { | |
15c1449b AM |
1436 | int reloc = ptr->reloc; |
1437 | ||
1438 | if (BFD_DEFAULT_TARGET_SIZE == 64 && reloc < 0) | |
1439 | { | |
1440 | if (ppc_size != PPC_OPCODE_64) | |
1441 | return BFD_RELOC_UNUSED; | |
1442 | reloc = -reloc; | |
1443 | } | |
1444 | ||
252b5132 | 1445 | if (exp_p->X_add_number != 0 |
15c1449b AM |
1446 | && (reloc == (int) BFD_RELOC_16_GOTOFF |
1447 | || reloc == (int) BFD_RELOC_LO16_GOTOFF | |
1448 | || reloc == (int) BFD_RELOC_HI16_GOTOFF | |
1449 | || reloc == (int) BFD_RELOC_HI16_S_GOTOFF)) | |
252b5132 RH |
1450 | as_warn (_("identifier+constant@got means identifier@got+constant")); |
1451 | ||
99a814a1 | 1452 | /* Now check for identifier@suffix+constant. */ |
252b5132 RH |
1453 | if (*str == '-' || *str == '+') |
1454 | { | |
1455 | char *orig_line = input_line_pointer; | |
1456 | expressionS new_exp; | |
1457 | ||
1458 | input_line_pointer = str; | |
1459 | expression (&new_exp); | |
1460 | if (new_exp.X_op == O_constant) | |
1461 | { | |
1462 | exp_p->X_add_number += new_exp.X_add_number; | |
1463 | str = input_line_pointer; | |
1464 | } | |
1465 | ||
1466 | if (&input_line_pointer != str_p) | |
1467 | input_line_pointer = orig_line; | |
1468 | } | |
252b5132 | 1469 | *str_p = str; |
0baf16f2 AM |
1470 | |
1471 | if (BFD_DEFAULT_TARGET_SIZE == 64 | |
15c1449b | 1472 | && reloc == (int) BFD_RELOC_PPC64_TOC |
0baf16f2 AM |
1473 | && exp_p->X_op == O_symbol) |
1474 | { | |
1475 | /* This reloc type ignores the symbol. Change the symbol | |
1476 | so that the dummy .TOC. symbol can be omitted from the | |
1477 | object file. */ | |
1478 | exp_p->X_add_symbol = &abs_symbol; | |
1479 | } | |
1480 | ||
15c1449b | 1481 | return (bfd_reloc_code_real_type) reloc; |
252b5132 RH |
1482 | } |
1483 | ||
1484 | return BFD_RELOC_UNUSED; | |
1485 | } | |
1486 | ||
99a814a1 AM |
1487 | /* Like normal .long/.short/.word, except support @got, etc. |
1488 | Clobbers input_line_pointer, checks end-of-line. */ | |
252b5132 RH |
1489 | static void |
1490 | ppc_elf_cons (nbytes) | |
0baf16f2 | 1491 | register int nbytes; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */ |
252b5132 RH |
1492 | { |
1493 | expressionS exp; | |
1494 | bfd_reloc_code_real_type reloc; | |
1495 | ||
1496 | if (is_it_end_of_statement ()) | |
1497 | { | |
1498 | demand_empty_rest_of_line (); | |
1499 | return; | |
1500 | } | |
1501 | ||
1502 | do | |
1503 | { | |
1504 | expression (&exp); | |
1505 | if (exp.X_op == O_symbol | |
1506 | && *input_line_pointer == '@' | |
99a814a1 AM |
1507 | && (reloc = ppc_elf_suffix (&input_line_pointer, |
1508 | &exp)) != BFD_RELOC_UNUSED) | |
252b5132 | 1509 | { |
99a814a1 AM |
1510 | reloc_howto_type *reloc_howto; |
1511 | int size; | |
1512 | ||
1513 | reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc); | |
1514 | size = bfd_get_reloc_size (reloc_howto); | |
252b5132 RH |
1515 | |
1516 | if (size > nbytes) | |
0baf16f2 AM |
1517 | { |
1518 | as_bad (_("%s relocations do not fit in %d bytes\n"), | |
1519 | reloc_howto->name, nbytes); | |
1520 | } | |
252b5132 RH |
1521 | else |
1522 | { | |
0baf16f2 AM |
1523 | char *p; |
1524 | int offset; | |
252b5132 | 1525 | |
0baf16f2 AM |
1526 | p = frag_more (nbytes); |
1527 | offset = 0; | |
1528 | if (target_big_endian) | |
1529 | offset = nbytes - size; | |
99a814a1 AM |
1530 | fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size, |
1531 | &exp, 0, reloc); | |
252b5132 RH |
1532 | } |
1533 | } | |
1534 | else | |
1535 | emit_expr (&exp, (unsigned int) nbytes); | |
1536 | } | |
1537 | while (*input_line_pointer++ == ','); | |
1538 | ||
99a814a1 AM |
1539 | /* Put terminator back into stream. */ |
1540 | input_line_pointer--; | |
252b5132 RH |
1541 | demand_empty_rest_of_line (); |
1542 | } | |
1543 | ||
1544 | /* Solaris pseduo op to change to the .rodata section. */ | |
1545 | static void | |
1546 | ppc_elf_rdata (xxx) | |
1547 | int xxx; | |
1548 | { | |
1549 | char *save_line = input_line_pointer; | |
1550 | static char section[] = ".rodata\n"; | |
1551 | ||
99a814a1 | 1552 | /* Just pretend this is .section .rodata */ |
252b5132 RH |
1553 | input_line_pointer = section; |
1554 | obj_elf_section (xxx); | |
1555 | ||
1556 | input_line_pointer = save_line; | |
1557 | } | |
1558 | ||
99a814a1 | 1559 | /* Pseudo op to make file scope bss items. */ |
252b5132 | 1560 | static void |
99a814a1 | 1561 | ppc_elf_lcomm (xxx) |
92161534 | 1562 | int xxx ATTRIBUTE_UNUSED; |
252b5132 RH |
1563 | { |
1564 | register char *name; | |
1565 | register char c; | |
1566 | register char *p; | |
1567 | offsetT size; | |
1568 | register symbolS *symbolP; | |
1569 | offsetT align; | |
1570 | segT old_sec; | |
1571 | int old_subsec; | |
1572 | char *pfrag; | |
1573 | int align2; | |
1574 | ||
1575 | name = input_line_pointer; | |
1576 | c = get_symbol_end (); | |
1577 | ||
99a814a1 | 1578 | /* just after name is now '\0'. */ |
252b5132 RH |
1579 | p = input_line_pointer; |
1580 | *p = c; | |
1581 | SKIP_WHITESPACE (); | |
1582 | if (*input_line_pointer != ',') | |
1583 | { | |
1584 | as_bad (_("Expected comma after symbol-name: rest of line ignored.")); | |
1585 | ignore_rest_of_line (); | |
1586 | return; | |
1587 | } | |
1588 | ||
1589 | input_line_pointer++; /* skip ',' */ | |
1590 | if ((size = get_absolute_expression ()) < 0) | |
1591 | { | |
1592 | as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size); | |
1593 | ignore_rest_of_line (); | |
1594 | return; | |
1595 | } | |
1596 | ||
1597 | /* The third argument to .lcomm is the alignment. */ | |
1598 | if (*input_line_pointer != ',') | |
1599 | align = 8; | |
1600 | else | |
1601 | { | |
1602 | ++input_line_pointer; | |
1603 | align = get_absolute_expression (); | |
1604 | if (align <= 0) | |
1605 | { | |
1606 | as_warn (_("ignoring bad alignment")); | |
1607 | align = 8; | |
1608 | } | |
1609 | } | |
1610 | ||
1611 | *p = 0; | |
1612 | symbolP = symbol_find_or_make (name); | |
1613 | *p = c; | |
1614 | ||
1615 | if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) | |
1616 | { | |
1617 | as_bad (_("Ignoring attempt to re-define symbol `%s'."), | |
1618 | S_GET_NAME (symbolP)); | |
1619 | ignore_rest_of_line (); | |
1620 | return; | |
1621 | } | |
1622 | ||
1623 | if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size) | |
1624 | { | |
1625 | as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."), | |
1626 | S_GET_NAME (symbolP), | |
1627 | (long) S_GET_VALUE (symbolP), | |
1628 | (long) size); | |
1629 | ||
1630 | ignore_rest_of_line (); | |
1631 | return; | |
1632 | } | |
1633 | ||
99a814a1 | 1634 | /* Allocate_bss. */ |
252b5132 RH |
1635 | old_sec = now_seg; |
1636 | old_subsec = now_subseg; | |
1637 | if (align) | |
1638 | { | |
99a814a1 | 1639 | /* Convert to a power of 2 alignment. */ |
252b5132 RH |
1640 | for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2); |
1641 | if (align != 1) | |
1642 | { | |
1643 | as_bad (_("Common alignment not a power of 2")); | |
1644 | ignore_rest_of_line (); | |
1645 | return; | |
1646 | } | |
1647 | } | |
1648 | else | |
1649 | align2 = 0; | |
1650 | ||
1651 | record_alignment (bss_section, align2); | |
1652 | subseg_set (bss_section, 0); | |
1653 | if (align2) | |
1654 | frag_align (align2, 0, 0); | |
1655 | if (S_GET_SEGMENT (symbolP) == bss_section) | |
49309057 ILT |
1656 | symbol_get_frag (symbolP)->fr_symbol = 0; |
1657 | symbol_set_frag (symbolP, frag_now); | |
252b5132 RH |
1658 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size, |
1659 | (char *) 0); | |
1660 | *pfrag = 0; | |
1661 | S_SET_SIZE (symbolP, size); | |
1662 | S_SET_SEGMENT (symbolP, bss_section); | |
1663 | subseg_set (old_sec, old_subsec); | |
1664 | demand_empty_rest_of_line (); | |
1665 | } | |
1666 | ||
1667 | /* Validate any relocations emitted for -mrelocatable, possibly adding | |
1668 | fixups for word relocations in writable segments, so we can adjust | |
1669 | them at runtime. */ | |
1670 | static void | |
1671 | ppc_elf_validate_fix (fixp, seg) | |
1672 | fixS *fixp; | |
1673 | segT seg; | |
1674 | { | |
1675 | if (fixp->fx_done || fixp->fx_pcrel) | |
1676 | return; | |
1677 | ||
1678 | switch (shlib) | |
1679 | { | |
1680 | case SHLIB_NONE: | |
1681 | case SHLIB_PIC: | |
1682 | return; | |
1683 | ||
5d6f4f16 | 1684 | case SHLIB_MRELOCATABLE: |
252b5132 RH |
1685 | if (fixp->fx_r_type <= BFD_RELOC_UNUSED |
1686 | && fixp->fx_r_type != BFD_RELOC_16_GOTOFF | |
1687 | && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF | |
1688 | && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF | |
1689 | && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF | |
1cfc59d5 | 1690 | && fixp->fx_r_type != BFD_RELOC_16_BASEREL |
252b5132 RH |
1691 | && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL |
1692 | && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL | |
1693 | && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL | |
e138127a | 1694 | && (seg->flags & SEC_LOAD) != 0 |
252b5132 RH |
1695 | && strcmp (segment_name (seg), ".got2") != 0 |
1696 | && strcmp (segment_name (seg), ".dtors") != 0 | |
1697 | && strcmp (segment_name (seg), ".ctors") != 0 | |
1698 | && strcmp (segment_name (seg), ".fixup") != 0 | |
252b5132 RH |
1699 | && strcmp (segment_name (seg), ".gcc_except_table") != 0 |
1700 | && strcmp (segment_name (seg), ".eh_frame") != 0 | |
1701 | && strcmp (segment_name (seg), ".ex_shared") != 0) | |
1702 | { | |
1703 | if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0 | |
1704 | || fixp->fx_r_type != BFD_RELOC_CTOR) | |
1705 | { | |
1706 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1707 | _("Relocation cannot be done when using -mrelocatable")); | |
1708 | } | |
1709 | } | |
1710 | return; | |
1711 | } | |
1712 | } | |
0baf16f2 AM |
1713 | |
1714 | #if BFD_DEFAULT_TARGET_SIZE == 64 | |
1715 | /* Don't emit .TOC. symbol. */ | |
1716 | int | |
1717 | ppc_elf_frob_symbol (sym) | |
1718 | symbolS *sym; | |
1719 | { | |
1720 | const char *name; | |
1721 | ||
1722 | name = S_GET_NAME (sym); | |
1723 | if (name != NULL && strcmp (name, ".TOC.") == 0) | |
1724 | { | |
1725 | S_CLEAR_EXTERNAL (sym); | |
1726 | return 1; | |
1727 | } | |
1728 | ||
1729 | return 0; | |
1730 | } | |
1731 | #endif | |
252b5132 RH |
1732 | #endif /* OBJ_ELF */ |
1733 | \f | |
1734 | #ifdef TE_PE | |
1735 | ||
1736 | /* | |
99a814a1 | 1737 | * Summary of parse_toc_entry. |
252b5132 RH |
1738 | * |
1739 | * in: Input_line_pointer points to the '[' in one of: | |
1740 | * | |
1741 | * [toc] [tocv] [toc32] [toc64] | |
1742 | * | |
1743 | * Anything else is an error of one kind or another. | |
1744 | * | |
81d4177b | 1745 | * out: |
252b5132 RH |
1746 | * return value: success or failure |
1747 | * toc_kind: kind of toc reference | |
1748 | * input_line_pointer: | |
1749 | * success: first char after the ']' | |
1750 | * failure: unchanged | |
1751 | * | |
1752 | * settings: | |
1753 | * | |
1754 | * [toc] - rv == success, toc_kind = default_toc | |
1755 | * [tocv] - rv == success, toc_kind = data_in_toc | |
1756 | * [toc32] - rv == success, toc_kind = must_be_32 | |
1757 | * [toc64] - rv == success, toc_kind = must_be_64 | |
1758 | * | |
1759 | */ | |
1760 | ||
81d4177b KH |
1761 | enum toc_size_qualifier |
1762 | { | |
252b5132 RH |
1763 | default_toc, /* The toc cell constructed should be the system default size */ |
1764 | data_in_toc, /* This is a direct reference to a toc cell */ | |
1765 | must_be_32, /* The toc cell constructed must be 32 bits wide */ | |
1766 | must_be_64 /* The toc cell constructed must be 64 bits wide */ | |
1767 | }; | |
1768 | ||
1769 | static int | |
99a814a1 | 1770 | parse_toc_entry (toc_kind) |
252b5132 RH |
1771 | enum toc_size_qualifier *toc_kind; |
1772 | { | |
1773 | char *start; | |
1774 | char *toc_spec; | |
1775 | char c; | |
1776 | enum toc_size_qualifier t; | |
1777 | ||
99a814a1 | 1778 | /* Save the input_line_pointer. */ |
252b5132 RH |
1779 | start = input_line_pointer; |
1780 | ||
99a814a1 | 1781 | /* Skip over the '[' , and whitespace. */ |
252b5132 RH |
1782 | ++input_line_pointer; |
1783 | SKIP_WHITESPACE (); | |
81d4177b | 1784 | |
99a814a1 | 1785 | /* Find the spelling of the operand. */ |
252b5132 RH |
1786 | toc_spec = input_line_pointer; |
1787 | c = get_symbol_end (); | |
1788 | ||
99a814a1 | 1789 | if (strcmp (toc_spec, "toc") == 0) |
252b5132 RH |
1790 | { |
1791 | t = default_toc; | |
1792 | } | |
99a814a1 | 1793 | else if (strcmp (toc_spec, "tocv") == 0) |
252b5132 RH |
1794 | { |
1795 | t = data_in_toc; | |
1796 | } | |
99a814a1 | 1797 | else if (strcmp (toc_spec, "toc32") == 0) |
252b5132 RH |
1798 | { |
1799 | t = must_be_32; | |
1800 | } | |
99a814a1 | 1801 | else if (strcmp (toc_spec, "toc64") == 0) |
252b5132 RH |
1802 | { |
1803 | t = must_be_64; | |
1804 | } | |
1805 | else | |
1806 | { | |
1807 | as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec); | |
99a814a1 AM |
1808 | *input_line_pointer = c; |
1809 | input_line_pointer = start; | |
252b5132 RH |
1810 | return 0; |
1811 | } | |
1812 | ||
99a814a1 AM |
1813 | /* Now find the ']'. */ |
1814 | *input_line_pointer = c; | |
252b5132 | 1815 | |
81d4177b KH |
1816 | SKIP_WHITESPACE (); /* leading whitespace could be there. */ |
1817 | c = *input_line_pointer++; /* input_line_pointer->past char in c. */ | |
252b5132 RH |
1818 | |
1819 | if (c != ']') | |
1820 | { | |
1821 | as_bad (_("syntax error: expected `]', found `%c'"), c); | |
99a814a1 | 1822 | input_line_pointer = start; |
252b5132 RH |
1823 | return 0; |
1824 | } | |
1825 | ||
99a814a1 | 1826 | *toc_kind = t; |
252b5132 RH |
1827 | return 1; |
1828 | } | |
1829 | #endif | |
1830 | \f | |
1831 | ||
1832 | /* We need to keep a list of fixups. We can't simply generate them as | |
1833 | we go, because that would require us to first create the frag, and | |
1834 | that would screw up references to ``.''. */ | |
1835 | ||
1836 | struct ppc_fixup | |
1837 | { | |
1838 | expressionS exp; | |
1839 | int opindex; | |
1840 | bfd_reloc_code_real_type reloc; | |
1841 | }; | |
1842 | ||
1843 | #define MAX_INSN_FIXUPS (5) | |
1844 | ||
1845 | /* This routine is called for each instruction to be assembled. */ | |
1846 | ||
1847 | void | |
1848 | md_assemble (str) | |
1849 | char *str; | |
1850 | { | |
1851 | char *s; | |
1852 | const struct powerpc_opcode *opcode; | |
1853 | unsigned long insn; | |
1854 | const unsigned char *opindex_ptr; | |
1855 | int skip_optional; | |
1856 | int need_paren; | |
1857 | int next_opindex; | |
1858 | struct ppc_fixup fixups[MAX_INSN_FIXUPS]; | |
1859 | int fc; | |
1860 | char *f; | |
1861 | int i; | |
1862 | #ifdef OBJ_ELF | |
1863 | bfd_reloc_code_real_type reloc; | |
1864 | #endif | |
1865 | ||
1866 | /* Get the opcode. */ | |
3882b010 | 1867 | for (s = str; *s != '\0' && ! ISSPACE (*s); s++) |
252b5132 RH |
1868 | ; |
1869 | if (*s != '\0') | |
1870 | *s++ = '\0'; | |
1871 | ||
1872 | /* Look up the opcode in the hash table. */ | |
1873 | opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str); | |
1874 | if (opcode == (const struct powerpc_opcode *) NULL) | |
1875 | { | |
1876 | const struct powerpc_macro *macro; | |
1877 | ||
1878 | macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str); | |
1879 | if (macro == (const struct powerpc_macro *) NULL) | |
1880 | as_bad (_("Unrecognized opcode: `%s'"), str); | |
1881 | else | |
1882 | ppc_macro (s, macro); | |
1883 | ||
1884 | return; | |
1885 | } | |
1886 | ||
1887 | insn = opcode->opcode; | |
1888 | ||
1889 | str = s; | |
3882b010 | 1890 | while (ISSPACE (*str)) |
252b5132 RH |
1891 | ++str; |
1892 | ||
1893 | /* PowerPC operands are just expressions. The only real issue is | |
1894 | that a few operand types are optional. All cases which might use | |
1895 | an optional operand separate the operands only with commas (in | |
1896 | some cases parentheses are used, as in ``lwz 1,0(1)'' but such | |
1897 | cases never have optional operands). There is never more than | |
1898 | one optional operand for an instruction. So, before we start | |
1899 | seriously parsing the operands, we check to see if we have an | |
1900 | optional operand, and, if we do, we count the number of commas to | |
1901 | see whether the operand should be omitted. */ | |
1902 | skip_optional = 0; | |
1903 | for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++) | |
1904 | { | |
1905 | const struct powerpc_operand *operand; | |
1906 | ||
1907 | operand = &powerpc_operands[*opindex_ptr]; | |
1908 | if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0) | |
1909 | { | |
1910 | unsigned int opcount; | |
1911 | ||
1912 | /* There is an optional operand. Count the number of | |
1913 | commas in the input line. */ | |
1914 | if (*str == '\0') | |
1915 | opcount = 0; | |
1916 | else | |
1917 | { | |
1918 | opcount = 1; | |
1919 | s = str; | |
1920 | while ((s = strchr (s, ',')) != (char *) NULL) | |
1921 | { | |
1922 | ++opcount; | |
1923 | ++s; | |
1924 | } | |
1925 | } | |
1926 | ||
1927 | /* If there are fewer operands in the line then are called | |
1928 | for by the instruction, we want to skip the optional | |
1929 | operand. */ | |
1930 | if (opcount < strlen (opcode->operands)) | |
1931 | skip_optional = 1; | |
1932 | ||
1933 | break; | |
1934 | } | |
1935 | } | |
1936 | ||
1937 | /* Gather the operands. */ | |
1938 | need_paren = 0; | |
1939 | next_opindex = 0; | |
1940 | fc = 0; | |
1941 | for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++) | |
1942 | { | |
1943 | const struct powerpc_operand *operand; | |
1944 | const char *errmsg; | |
1945 | char *hold; | |
1946 | expressionS ex; | |
1947 | char endc; | |
1948 | ||
1949 | if (next_opindex == 0) | |
1950 | operand = &powerpc_operands[*opindex_ptr]; | |
1951 | else | |
1952 | { | |
1953 | operand = &powerpc_operands[next_opindex]; | |
1954 | next_opindex = 0; | |
1955 | } | |
1956 | ||
1957 | errmsg = NULL; | |
1958 | ||
1959 | /* If this is a fake operand, then we do not expect anything | |
1960 | from the input. */ | |
1961 | if ((operand->flags & PPC_OPERAND_FAKE) != 0) | |
1962 | { | |
802a735e | 1963 | insn = (*operand->insert) (insn, 0L, ppc_cpu | ppc_size, &errmsg); |
252b5132 RH |
1964 | if (errmsg != (const char *) NULL) |
1965 | as_bad (errmsg); | |
1966 | continue; | |
1967 | } | |
1968 | ||
1969 | /* If this is an optional operand, and we are skipping it, just | |
1970 | insert a zero. */ | |
1971 | if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0 | |
1972 | && skip_optional) | |
1973 | { | |
1974 | if (operand->insert) | |
1975 | { | |
802a735e | 1976 | insn = (*operand->insert) (insn, 0L, ppc_cpu | ppc_size, &errmsg); |
252b5132 RH |
1977 | if (errmsg != (const char *) NULL) |
1978 | as_bad (errmsg); | |
1979 | } | |
1980 | if ((operand->flags & PPC_OPERAND_NEXT) != 0) | |
1981 | next_opindex = *opindex_ptr + 1; | |
1982 | continue; | |
1983 | } | |
1984 | ||
1985 | /* Gather the operand. */ | |
1986 | hold = input_line_pointer; | |
1987 | input_line_pointer = str; | |
1988 | ||
1989 | #ifdef TE_PE | |
81d4177b | 1990 | if (*input_line_pointer == '[') |
252b5132 RH |
1991 | { |
1992 | /* We are expecting something like the second argument here: | |
99a814a1 AM |
1993 | * |
1994 | * lwz r4,[toc].GS.0.static_int(rtoc) | |
1995 | * ^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
1996 | * The argument following the `]' must be a symbol name, and the | |
1997 | * register must be the toc register: 'rtoc' or '2' | |
1998 | * | |
1999 | * The effect is to 0 as the displacement field | |
2000 | * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or | |
2001 | * the appropriate variation) reloc against it based on the symbol. | |
2002 | * The linker will build the toc, and insert the resolved toc offset. | |
2003 | * | |
2004 | * Note: | |
2005 | * o The size of the toc entry is currently assumed to be | |
2006 | * 32 bits. This should not be assumed to be a hard coded | |
2007 | * number. | |
2008 | * o In an effort to cope with a change from 32 to 64 bits, | |
2009 | * there are also toc entries that are specified to be | |
2010 | * either 32 or 64 bits: | |
2011 | * lwz r4,[toc32].GS.0.static_int(rtoc) | |
2012 | * lwz r4,[toc64].GS.0.static_int(rtoc) | |
2013 | * These demand toc entries of the specified size, and the | |
2014 | * instruction probably requires it. | |
2015 | */ | |
252b5132 RH |
2016 | |
2017 | int valid_toc; | |
2018 | enum toc_size_qualifier toc_kind; | |
2019 | bfd_reloc_code_real_type toc_reloc; | |
2020 | ||
99a814a1 AM |
2021 | /* Go parse off the [tocXX] part. */ |
2022 | valid_toc = parse_toc_entry (&toc_kind); | |
252b5132 | 2023 | |
81d4177b | 2024 | if (!valid_toc) |
252b5132 | 2025 | { |
99a814a1 AM |
2026 | /* Note: message has already been issued. |
2027 | FIXME: what sort of recovery should we do? | |
2028 | demand_rest_of_line (); return; ? */ | |
252b5132 RH |
2029 | } |
2030 | ||
99a814a1 AM |
2031 | /* Now get the symbol following the ']'. */ |
2032 | expression (&ex); | |
252b5132 RH |
2033 | |
2034 | switch (toc_kind) | |
2035 | { | |
2036 | case default_toc: | |
99a814a1 AM |
2037 | /* In this case, we may not have seen the symbol yet, |
2038 | since it is allowed to appear on a .extern or .globl | |
2039 | or just be a label in the .data section. */ | |
252b5132 RH |
2040 | toc_reloc = BFD_RELOC_PPC_TOC16; |
2041 | break; | |
2042 | case data_in_toc: | |
99a814a1 AM |
2043 | /* 1. The symbol must be defined and either in the toc |
2044 | section, or a global. | |
2045 | 2. The reloc generated must have the TOCDEFN flag set | |
2046 | in upper bit mess of the reloc type. | |
2047 | FIXME: It's a little confusing what the tocv | |
2048 | qualifier can be used for. At the very least, I've | |
2049 | seen three uses, only one of which I'm sure I can | |
2050 | explain. */ | |
81d4177b KH |
2051 | if (ex.X_op == O_symbol) |
2052 | { | |
252b5132 | 2053 | assert (ex.X_add_symbol != NULL); |
fed9b18a ILT |
2054 | if (symbol_get_bfdsym (ex.X_add_symbol)->section |
2055 | != tocdata_section) | |
252b5132 | 2056 | { |
99a814a1 | 2057 | as_bad (_("[tocv] symbol is not a toc symbol")); |
252b5132 RH |
2058 | } |
2059 | } | |
2060 | ||
2061 | toc_reloc = BFD_RELOC_PPC_TOC16; | |
2062 | break; | |
2063 | case must_be_32: | |
99a814a1 AM |
2064 | /* FIXME: these next two specifically specify 32/64 bit |
2065 | toc entries. We don't support them today. Is this | |
2066 | the right way to say that? */ | |
252b5132 RH |
2067 | toc_reloc = BFD_RELOC_UNUSED; |
2068 | as_bad (_("Unimplemented toc32 expression modifier")); | |
2069 | break; | |
2070 | case must_be_64: | |
99a814a1 | 2071 | /* FIXME: see above. */ |
252b5132 RH |
2072 | toc_reloc = BFD_RELOC_UNUSED; |
2073 | as_bad (_("Unimplemented toc64 expression modifier")); | |
2074 | break; | |
2075 | default: | |
bc805888 | 2076 | fprintf (stderr, |
99a814a1 AM |
2077 | _("Unexpected return value [%d] from parse_toc_entry!\n"), |
2078 | toc_kind); | |
bc805888 | 2079 | abort (); |
252b5132 RH |
2080 | break; |
2081 | } | |
2082 | ||
2083 | /* We need to generate a fixup for this expression. */ | |
2084 | if (fc >= MAX_INSN_FIXUPS) | |
2085 | as_fatal (_("too many fixups")); | |
2086 | ||
2087 | fixups[fc].reloc = toc_reloc; | |
2088 | fixups[fc].exp = ex; | |
2089 | fixups[fc].opindex = *opindex_ptr; | |
2090 | ++fc; | |
2091 | ||
99a814a1 AM |
2092 | /* Ok. We've set up the fixup for the instruction. Now make it |
2093 | look like the constant 0 was found here. */ | |
252b5132 RH |
2094 | ex.X_unsigned = 1; |
2095 | ex.X_op = O_constant; | |
2096 | ex.X_add_number = 0; | |
2097 | ex.X_add_symbol = NULL; | |
2098 | ex.X_op_symbol = NULL; | |
2099 | } | |
2100 | ||
2101 | else | |
2102 | #endif /* TE_PE */ | |
2103 | { | |
2104 | if (! register_name (&ex)) | |
2105 | { | |
2106 | if ((operand->flags & PPC_OPERAND_CR) != 0) | |
2107 | cr_operand = true; | |
2108 | expression (&ex); | |
2109 | cr_operand = false; | |
2110 | } | |
2111 | } | |
2112 | ||
2113 | str = input_line_pointer; | |
2114 | input_line_pointer = hold; | |
2115 | ||
2116 | if (ex.X_op == O_illegal) | |
2117 | as_bad (_("illegal operand")); | |
2118 | else if (ex.X_op == O_absent) | |
2119 | as_bad (_("missing operand")); | |
2120 | else if (ex.X_op == O_register) | |
2121 | { | |
2122 | insn = ppc_insert_operand (insn, operand, ex.X_add_number, | |
2123 | (char *) NULL, 0); | |
2124 | } | |
2125 | else if (ex.X_op == O_constant) | |
2126 | { | |
2127 | #ifdef OBJ_ELF | |
81d4177b | 2128 | /* Allow @HA, @L, @H on constants. */ |
252b5132 RH |
2129 | char *orig_str = str; |
2130 | ||
2131 | if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED) | |
2132 | switch (reloc) | |
2133 | { | |
2134 | default: | |
2135 | str = orig_str; | |
2136 | break; | |
2137 | ||
2138 | case BFD_RELOC_LO16: | |
2139 | /* X_unsigned is the default, so if the user has done | |
0baf16f2 AM |
2140 | something which cleared it, we always produce a |
2141 | signed value. */ | |
2142 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
252b5132 RH |
2143 | ex.X_add_number &= 0xffff; |
2144 | else | |
0baf16f2 | 2145 | ex.X_add_number = SEX16 (ex.X_add_number); |
252b5132 RH |
2146 | break; |
2147 | ||
2148 | case BFD_RELOC_HI16: | |
0baf16f2 AM |
2149 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) |
2150 | ex.X_add_number = PPC_HI (ex.X_add_number); | |
2151 | else | |
2152 | ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number)); | |
252b5132 RH |
2153 | break; |
2154 | ||
2155 | case BFD_RELOC_HI16_S: | |
0baf16f2 AM |
2156 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) |
2157 | ex.X_add_number = PPC_HA (ex.X_add_number); | |
2158 | else | |
2159 | ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number)); | |
2160 | break; | |
2161 | ||
2162 | #if BFD_DEFAULT_TARGET_SIZE == 64 | |
2163 | case BFD_RELOC_PPC64_HIGHER: | |
2164 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2165 | ex.X_add_number = PPC_HIGHER (ex.X_add_number); | |
2166 | else | |
2167 | ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number)); | |
2168 | break; | |
2169 | ||
2170 | case BFD_RELOC_PPC64_HIGHER_S: | |
2171 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2172 | ex.X_add_number = PPC_HIGHERA (ex.X_add_number); | |
2173 | else | |
2174 | ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number)); | |
252b5132 | 2175 | break; |
0baf16f2 AM |
2176 | |
2177 | case BFD_RELOC_PPC64_HIGHEST: | |
2178 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2179 | ex.X_add_number = PPC_HIGHEST (ex.X_add_number); | |
2180 | else | |
2181 | ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number)); | |
2182 | break; | |
2183 | ||
2184 | case BFD_RELOC_PPC64_HIGHEST_S: | |
2185 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2186 | ex.X_add_number = PPC_HIGHESTA (ex.X_add_number); | |
2187 | else | |
2188 | ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number)); | |
2189 | break; | |
2190 | #endif /* BFD_DEFAULT_TARGET_SIZE == 64 */ | |
252b5132 | 2191 | } |
0baf16f2 | 2192 | #endif /* OBJ_ELF */ |
252b5132 RH |
2193 | insn = ppc_insert_operand (insn, operand, ex.X_add_number, |
2194 | (char *) NULL, 0); | |
2195 | } | |
2196 | #ifdef OBJ_ELF | |
2197 | else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED) | |
2198 | { | |
99a814a1 AM |
2199 | /* For the absolute forms of branches, convert the PC |
2200 | relative form back into the absolute. */ | |
252b5132 RH |
2201 | if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0) |
2202 | { | |
2203 | switch (reloc) | |
2204 | { | |
2205 | case BFD_RELOC_PPC_B26: | |
2206 | reloc = BFD_RELOC_PPC_BA26; | |
2207 | break; | |
2208 | case BFD_RELOC_PPC_B16: | |
2209 | reloc = BFD_RELOC_PPC_BA16; | |
2210 | break; | |
2211 | case BFD_RELOC_PPC_B16_BRTAKEN: | |
2212 | reloc = BFD_RELOC_PPC_BA16_BRTAKEN; | |
2213 | break; | |
2214 | case BFD_RELOC_PPC_B16_BRNTAKEN: | |
2215 | reloc = BFD_RELOC_PPC_BA16_BRNTAKEN; | |
2216 | break; | |
2217 | default: | |
2218 | break; | |
2219 | } | |
2220 | } | |
2221 | ||
0baf16f2 | 2222 | if (BFD_DEFAULT_TARGET_SIZE == 64 |
9c7977b3 | 2223 | && ppc_size == PPC_OPCODE_64 |
0baf16f2 AM |
2224 | && (operand->flags & PPC_OPERAND_DS) != 0) |
2225 | { | |
2226 | switch (reloc) | |
2227 | { | |
2228 | case BFD_RELOC_16: | |
2229 | reloc = BFD_RELOC_PPC64_ADDR16_DS; | |
2230 | break; | |
2231 | case BFD_RELOC_LO16: | |
2232 | reloc = BFD_RELOC_PPC64_ADDR16_LO_DS; | |
2233 | break; | |
2234 | case BFD_RELOC_16_GOTOFF: | |
2235 | reloc = BFD_RELOC_PPC64_GOT16_DS; | |
2236 | break; | |
2237 | case BFD_RELOC_LO16_GOTOFF: | |
2238 | reloc = BFD_RELOC_PPC64_GOT16_LO_DS; | |
2239 | break; | |
2240 | case BFD_RELOC_LO16_PLTOFF: | |
2241 | reloc = BFD_RELOC_PPC64_PLT16_LO_DS; | |
2242 | break; | |
1cfc59d5 | 2243 | case BFD_RELOC_16_BASEREL: |
0baf16f2 AM |
2244 | reloc = BFD_RELOC_PPC64_SECTOFF_DS; |
2245 | break; | |
2246 | case BFD_RELOC_LO16_BASEREL: | |
2247 | reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS; | |
2248 | break; | |
2249 | case BFD_RELOC_PPC_TOC16: | |
2250 | reloc = BFD_RELOC_PPC64_TOC16_DS; | |
2251 | break; | |
2252 | case BFD_RELOC_PPC64_TOC16_LO: | |
2253 | reloc = BFD_RELOC_PPC64_TOC16_LO_DS; | |
2254 | break; | |
2255 | case BFD_RELOC_PPC64_PLTGOT16: | |
2256 | reloc = BFD_RELOC_PPC64_PLTGOT16_DS; | |
2257 | break; | |
2258 | case BFD_RELOC_PPC64_PLTGOT16_LO: | |
2259 | reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS; | |
2260 | break; | |
2261 | default: | |
2262 | as_bad (_("unsupported relocation for DS offset field")); | |
2263 | break; | |
2264 | } | |
2265 | } | |
2266 | ||
252b5132 RH |
2267 | /* We need to generate a fixup for this expression. */ |
2268 | if (fc >= MAX_INSN_FIXUPS) | |
2269 | as_fatal (_("too many fixups")); | |
2270 | fixups[fc].exp = ex; | |
2271 | fixups[fc].opindex = 0; | |
2272 | fixups[fc].reloc = reloc; | |
2273 | ++fc; | |
2274 | } | |
2275 | #endif /* OBJ_ELF */ | |
2276 | ||
2277 | else | |
2278 | { | |
2279 | /* We need to generate a fixup for this expression. */ | |
2280 | if (fc >= MAX_INSN_FIXUPS) | |
2281 | as_fatal (_("too many fixups")); | |
2282 | fixups[fc].exp = ex; | |
2283 | fixups[fc].opindex = *opindex_ptr; | |
2284 | fixups[fc].reloc = BFD_RELOC_UNUSED; | |
2285 | ++fc; | |
2286 | } | |
2287 | ||
2288 | if (need_paren) | |
2289 | { | |
2290 | endc = ')'; | |
2291 | need_paren = 0; | |
2292 | } | |
2293 | else if ((operand->flags & PPC_OPERAND_PARENS) != 0) | |
2294 | { | |
2295 | endc = '('; | |
2296 | need_paren = 1; | |
2297 | } | |
2298 | else | |
2299 | endc = ','; | |
2300 | ||
2301 | /* The call to expression should have advanced str past any | |
2302 | whitespace. */ | |
2303 | if (*str != endc | |
2304 | && (endc != ',' || *str != '\0')) | |
2305 | { | |
2306 | as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc); | |
2307 | break; | |
2308 | } | |
2309 | ||
2310 | if (*str != '\0') | |
2311 | ++str; | |
2312 | } | |
2313 | ||
3882b010 | 2314 | while (ISSPACE (*str)) |
252b5132 RH |
2315 | ++str; |
2316 | ||
2317 | if (*str != '\0') | |
2318 | as_bad (_("junk at end of line: `%s'"), str); | |
2319 | ||
2320 | /* Write out the instruction. */ | |
2321 | f = frag_more (4); | |
2322 | md_number_to_chars (f, insn, 4); | |
2323 | ||
5d6f4f16 GK |
2324 | #ifdef OBJ_ELF |
2325 | dwarf2_emit_insn (4); | |
2326 | #endif | |
2327 | ||
252b5132 RH |
2328 | /* Create any fixups. At this point we do not use a |
2329 | bfd_reloc_code_real_type, but instead just use the | |
2330 | BFD_RELOC_UNUSED plus the operand index. This lets us easily | |
2331 | handle fixups for any operand type, although that is admittedly | |
2332 | not a very exciting feature. We pick a BFD reloc type in | |
94f592af | 2333 | md_apply_fix3. */ |
252b5132 RH |
2334 | for (i = 0; i < fc; i++) |
2335 | { | |
2336 | const struct powerpc_operand *operand; | |
2337 | ||
2338 | operand = &powerpc_operands[fixups[i].opindex]; | |
2339 | if (fixups[i].reloc != BFD_RELOC_UNUSED) | |
2340 | { | |
99a814a1 | 2341 | reloc_howto_type *reloc_howto; |
252b5132 RH |
2342 | int size; |
2343 | int offset; | |
2344 | fixS *fixP; | |
2345 | ||
99a814a1 | 2346 | reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc); |
252b5132 RH |
2347 | if (!reloc_howto) |
2348 | abort (); | |
2349 | ||
2350 | size = bfd_get_reloc_size (reloc_howto); | |
2351 | offset = target_big_endian ? (4 - size) : 0; | |
2352 | ||
2353 | if (size < 1 || size > 4) | |
bc805888 | 2354 | abort (); |
252b5132 | 2355 | |
99a814a1 AM |
2356 | fixP = fix_new_exp (frag_now, |
2357 | f - frag_now->fr_literal + offset, | |
2358 | size, | |
2359 | &fixups[i].exp, | |
2360 | reloc_howto->pc_relative, | |
252b5132 RH |
2361 | fixups[i].reloc); |
2362 | ||
2363 | /* Turn off complaints that the addend is too large for things like | |
2364 | foo+100000@ha. */ | |
2365 | switch (fixups[i].reloc) | |
2366 | { | |
2367 | case BFD_RELOC_16_GOTOFF: | |
2368 | case BFD_RELOC_PPC_TOC16: | |
2369 | case BFD_RELOC_LO16: | |
2370 | case BFD_RELOC_HI16: | |
2371 | case BFD_RELOC_HI16_S: | |
0baf16f2 AM |
2372 | #ifdef OBJ_ELF |
2373 | #if BFD_DEFAULT_TARGET_SIZE == 64 | |
2374 | case BFD_RELOC_PPC64_HIGHER: | |
2375 | case BFD_RELOC_PPC64_HIGHER_S: | |
2376 | case BFD_RELOC_PPC64_HIGHEST: | |
2377 | case BFD_RELOC_PPC64_HIGHEST_S: | |
2378 | #endif | |
2379 | #endif | |
252b5132 RH |
2380 | fixP->fx_no_overflow = 1; |
2381 | break; | |
2382 | default: | |
2383 | break; | |
2384 | } | |
2385 | } | |
2386 | else | |
99a814a1 AM |
2387 | fix_new_exp (frag_now, |
2388 | f - frag_now->fr_literal, | |
2389 | 4, | |
252b5132 RH |
2390 | &fixups[i].exp, |
2391 | (operand->flags & PPC_OPERAND_RELATIVE) != 0, | |
2392 | ((bfd_reloc_code_real_type) | |
99a814a1 | 2393 | (fixups[i].opindex + (int) BFD_RELOC_UNUSED))); |
252b5132 RH |
2394 | } |
2395 | } | |
2396 | ||
2397 | /* Handle a macro. Gather all the operands, transform them as | |
2398 | described by the macro, and call md_assemble recursively. All the | |
2399 | operands are separated by commas; we don't accept parentheses | |
2400 | around operands here. */ | |
2401 | ||
2402 | static void | |
2403 | ppc_macro (str, macro) | |
2404 | char *str; | |
2405 | const struct powerpc_macro *macro; | |
2406 | { | |
2407 | char *operands[10]; | |
2408 | unsigned int count; | |
2409 | char *s; | |
2410 | unsigned int len; | |
2411 | const char *format; | |
2412 | int arg; | |
2413 | char *send; | |
2414 | char *complete; | |
2415 | ||
2416 | /* Gather the users operands into the operands array. */ | |
2417 | count = 0; | |
2418 | s = str; | |
2419 | while (1) | |
2420 | { | |
2421 | if (count >= sizeof operands / sizeof operands[0]) | |
2422 | break; | |
2423 | operands[count++] = s; | |
2424 | s = strchr (s, ','); | |
2425 | if (s == (char *) NULL) | |
2426 | break; | |
2427 | *s++ = '\0'; | |
81d4177b | 2428 | } |
252b5132 RH |
2429 | |
2430 | if (count != macro->operands) | |
2431 | { | |
2432 | as_bad (_("wrong number of operands")); | |
2433 | return; | |
2434 | } | |
2435 | ||
2436 | /* Work out how large the string must be (the size is unbounded | |
2437 | because it includes user input). */ | |
2438 | len = 0; | |
2439 | format = macro->format; | |
2440 | while (*format != '\0') | |
2441 | { | |
2442 | if (*format != '%') | |
2443 | { | |
2444 | ++len; | |
2445 | ++format; | |
2446 | } | |
2447 | else | |
2448 | { | |
2449 | arg = strtol (format + 1, &send, 10); | |
2450 | know (send != format && arg >= 0 && arg < count); | |
2451 | len += strlen (operands[arg]); | |
2452 | format = send; | |
2453 | } | |
2454 | } | |
2455 | ||
2456 | /* Put the string together. */ | |
2457 | complete = s = (char *) alloca (len + 1); | |
2458 | format = macro->format; | |
2459 | while (*format != '\0') | |
2460 | { | |
2461 | if (*format != '%') | |
2462 | *s++ = *format++; | |
2463 | else | |
2464 | { | |
2465 | arg = strtol (format + 1, &send, 10); | |
2466 | strcpy (s, operands[arg]); | |
2467 | s += strlen (s); | |
2468 | format = send; | |
2469 | } | |
2470 | } | |
2471 | *s = '\0'; | |
2472 | ||
2473 | /* Assemble the constructed instruction. */ | |
2474 | md_assemble (complete); | |
81d4177b | 2475 | } |
252b5132 RH |
2476 | \f |
2477 | #ifdef OBJ_ELF | |
99a814a1 | 2478 | /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */ |
252b5132 RH |
2479 | |
2480 | int | |
2481 | ppc_section_letter (letter, ptr_msg) | |
2482 | int letter; | |
2483 | char **ptr_msg; | |
2484 | { | |
2485 | if (letter == 'e') | |
2486 | return SHF_EXCLUDE; | |
2487 | ||
13ae64f3 | 2488 | *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string"); |
252b5132 RH |
2489 | return 0; |
2490 | } | |
2491 | ||
2492 | int | |
9de8d8f1 RH |
2493 | ppc_section_word (str, len) |
2494 | char *str; | |
2495 | size_t len; | |
252b5132 | 2496 | { |
9de8d8f1 RH |
2497 | if (len == 7 && strncmp (str, "exclude", 7) == 0) |
2498 | return SHF_EXCLUDE; | |
252b5132 | 2499 | |
9de8d8f1 | 2500 | return -1; |
252b5132 RH |
2501 | } |
2502 | ||
2503 | int | |
9de8d8f1 RH |
2504 | ppc_section_type (str, len) |
2505 | char *str; | |
2506 | size_t len; | |
252b5132 | 2507 | { |
9de8d8f1 RH |
2508 | if (len == 7 && strncmp (str, "ordered", 7) == 0) |
2509 | return SHT_ORDERED; | |
252b5132 | 2510 | |
9de8d8f1 | 2511 | return -1; |
252b5132 RH |
2512 | } |
2513 | ||
2514 | int | |
2515 | ppc_section_flags (flags, attr, type) | |
2516 | int flags; | |
2517 | int attr; | |
2518 | int type; | |
2519 | { | |
2520 | if (type == SHT_ORDERED) | |
2521 | flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES; | |
2522 | ||
2523 | if (attr & SHF_EXCLUDE) | |
2524 | flags |= SEC_EXCLUDE; | |
2525 | ||
2526 | return flags; | |
2527 | } | |
2528 | #endif /* OBJ_ELF */ | |
2529 | ||
2530 | \f | |
2531 | /* Pseudo-op handling. */ | |
2532 | ||
2533 | /* The .byte pseudo-op. This is similar to the normal .byte | |
2534 | pseudo-op, but it can also take a single ASCII string. */ | |
2535 | ||
2536 | static void | |
2537 | ppc_byte (ignore) | |
92161534 | 2538 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2539 | { |
2540 | if (*input_line_pointer != '\"') | |
2541 | { | |
2542 | cons (1); | |
2543 | return; | |
2544 | } | |
2545 | ||
2546 | /* Gather characters. A real double quote is doubled. Unusual | |
2547 | characters are not permitted. */ | |
2548 | ++input_line_pointer; | |
2549 | while (1) | |
2550 | { | |
2551 | char c; | |
2552 | ||
2553 | c = *input_line_pointer++; | |
2554 | ||
2555 | if (c == '\"') | |
2556 | { | |
2557 | if (*input_line_pointer != '\"') | |
2558 | break; | |
2559 | ++input_line_pointer; | |
2560 | } | |
2561 | ||
2562 | FRAG_APPEND_1_CHAR (c); | |
2563 | } | |
2564 | ||
2565 | demand_empty_rest_of_line (); | |
2566 | } | |
2567 | \f | |
2568 | #ifdef OBJ_XCOFF | |
2569 | ||
2570 | /* XCOFF specific pseudo-op handling. */ | |
2571 | ||
2572 | /* This is set if we are creating a .stabx symbol, since we don't want | |
2573 | to handle symbol suffixes for such symbols. */ | |
2574 | static boolean ppc_stab_symbol; | |
2575 | ||
2576 | /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common | |
2577 | symbols in the .bss segment as though they were local common | |
1ad63b2f TR |
2578 | symbols, and uses a different smclas. The native Aix 4.3.3 assember |
2579 | aligns .comm and .lcomm to 4 bytes. */ | |
252b5132 RH |
2580 | |
2581 | static void | |
2582 | ppc_comm (lcomm) | |
2583 | int lcomm; | |
2584 | { | |
2585 | asection *current_seg = now_seg; | |
2586 | subsegT current_subseg = now_subseg; | |
2587 | char *name; | |
2588 | char endc; | |
2589 | char *end_name; | |
2590 | offsetT size; | |
2591 | offsetT align; | |
2592 | symbolS *lcomm_sym = NULL; | |
2593 | symbolS *sym; | |
2594 | char *pfrag; | |
2595 | ||
2596 | name = input_line_pointer; | |
2597 | endc = get_symbol_end (); | |
2598 | end_name = input_line_pointer; | |
2599 | *end_name = endc; | |
2600 | ||
2601 | if (*input_line_pointer != ',') | |
2602 | { | |
2603 | as_bad (_("missing size")); | |
2604 | ignore_rest_of_line (); | |
2605 | return; | |
2606 | } | |
2607 | ++input_line_pointer; | |
2608 | ||
2609 | size = get_absolute_expression (); | |
2610 | if (size < 0) | |
2611 | { | |
2612 | as_bad (_("negative size")); | |
2613 | ignore_rest_of_line (); | |
2614 | return; | |
2615 | } | |
2616 | ||
2617 | if (! lcomm) | |
2618 | { | |
2619 | /* The third argument to .comm is the alignment. */ | |
2620 | if (*input_line_pointer != ',') | |
1ad63b2f | 2621 | align = 2; |
252b5132 RH |
2622 | else |
2623 | { | |
2624 | ++input_line_pointer; | |
2625 | align = get_absolute_expression (); | |
2626 | if (align <= 0) | |
2627 | { | |
2628 | as_warn (_("ignoring bad alignment")); | |
1ad63b2f | 2629 | align = 2; |
252b5132 RH |
2630 | } |
2631 | } | |
2632 | } | |
2633 | else | |
2634 | { | |
2635 | char *lcomm_name; | |
2636 | char lcomm_endc; | |
2637 | ||
1ad63b2f | 2638 | if (size <= 4) |
252b5132 RH |
2639 | align = 2; |
2640 | else | |
2641 | align = 3; | |
2642 | ||
2643 | /* The third argument to .lcomm appears to be the real local | |
2644 | common symbol to create. References to the symbol named in | |
2645 | the first argument are turned into references to the third | |
2646 | argument. */ | |
2647 | if (*input_line_pointer != ',') | |
2648 | { | |
2649 | as_bad (_("missing real symbol name")); | |
2650 | ignore_rest_of_line (); | |
2651 | return; | |
2652 | } | |
2653 | ++input_line_pointer; | |
2654 | ||
2655 | lcomm_name = input_line_pointer; | |
2656 | lcomm_endc = get_symbol_end (); | |
81d4177b | 2657 | |
252b5132 RH |
2658 | lcomm_sym = symbol_find_or_make (lcomm_name); |
2659 | ||
2660 | *input_line_pointer = lcomm_endc; | |
2661 | } | |
2662 | ||
2663 | *end_name = '\0'; | |
2664 | sym = symbol_find_or_make (name); | |
2665 | *end_name = endc; | |
2666 | ||
2667 | if (S_IS_DEFINED (sym) | |
2668 | || S_GET_VALUE (sym) != 0) | |
2669 | { | |
2670 | as_bad (_("attempt to redefine symbol")); | |
2671 | ignore_rest_of_line (); | |
2672 | return; | |
2673 | } | |
81d4177b | 2674 | |
252b5132 | 2675 | record_alignment (bss_section, align); |
81d4177b | 2676 | |
252b5132 RH |
2677 | if (! lcomm |
2678 | || ! S_IS_DEFINED (lcomm_sym)) | |
2679 | { | |
2680 | symbolS *def_sym; | |
2681 | offsetT def_size; | |
2682 | ||
2683 | if (! lcomm) | |
2684 | { | |
2685 | def_sym = sym; | |
2686 | def_size = size; | |
2687 | S_SET_EXTERNAL (sym); | |
2688 | } | |
2689 | else | |
2690 | { | |
809ffe0d | 2691 | symbol_get_tc (lcomm_sym)->output = 1; |
252b5132 RH |
2692 | def_sym = lcomm_sym; |
2693 | def_size = 0; | |
2694 | } | |
2695 | ||
2696 | subseg_set (bss_section, 1); | |
2697 | frag_align (align, 0, 0); | |
81d4177b | 2698 | |
809ffe0d | 2699 | symbol_set_frag (def_sym, frag_now); |
252b5132 RH |
2700 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym, |
2701 | def_size, (char *) NULL); | |
2702 | *pfrag = 0; | |
2703 | S_SET_SEGMENT (def_sym, bss_section); | |
809ffe0d | 2704 | symbol_get_tc (def_sym)->align = align; |
252b5132 RH |
2705 | } |
2706 | else if (lcomm) | |
2707 | { | |
2708 | /* Align the size of lcomm_sym. */ | |
809ffe0d ILT |
2709 | symbol_get_frag (lcomm_sym)->fr_offset = |
2710 | ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1) | |
252b5132 | 2711 | &~ ((1 << align) - 1)); |
809ffe0d ILT |
2712 | if (align > symbol_get_tc (lcomm_sym)->align) |
2713 | symbol_get_tc (lcomm_sym)->align = align; | |
252b5132 RH |
2714 | } |
2715 | ||
2716 | if (lcomm) | |
2717 | { | |
2718 | /* Make sym an offset from lcomm_sym. */ | |
2719 | S_SET_SEGMENT (sym, bss_section); | |
809ffe0d ILT |
2720 | symbol_set_frag (sym, symbol_get_frag (lcomm_sym)); |
2721 | S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset); | |
2722 | symbol_get_frag (lcomm_sym)->fr_offset += size; | |
252b5132 RH |
2723 | } |
2724 | ||
2725 | subseg_set (current_seg, current_subseg); | |
2726 | ||
2727 | demand_empty_rest_of_line (); | |
2728 | } | |
2729 | ||
2730 | /* The .csect pseudo-op. This switches us into a different | |
2731 | subsegment. The first argument is a symbol whose value is the | |
2732 | start of the .csect. In COFF, csect symbols get special aux | |
2733 | entries defined by the x_csect field of union internal_auxent. The | |
2734 | optional second argument is the alignment (the default is 2). */ | |
2735 | ||
2736 | static void | |
2737 | ppc_csect (ignore) | |
5480ccf3 | 2738 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2739 | { |
2740 | char *name; | |
2741 | char endc; | |
2742 | symbolS *sym; | |
2743 | ||
2744 | name = input_line_pointer; | |
2745 | endc = get_symbol_end (); | |
81d4177b | 2746 | |
252b5132 RH |
2747 | sym = symbol_find_or_make (name); |
2748 | ||
2749 | *input_line_pointer = endc; | |
2750 | ||
2751 | if (S_GET_NAME (sym)[0] == '\0') | |
2752 | { | |
2753 | /* An unnamed csect is assumed to be [PR]. */ | |
809ffe0d | 2754 | symbol_get_tc (sym)->class = XMC_PR; |
252b5132 RH |
2755 | } |
2756 | ||
2757 | ppc_change_csect (sym); | |
2758 | ||
2759 | if (*input_line_pointer == ',') | |
2760 | { | |
2761 | ++input_line_pointer; | |
809ffe0d | 2762 | symbol_get_tc (sym)->align = get_absolute_expression (); |
252b5132 RH |
2763 | } |
2764 | ||
2765 | demand_empty_rest_of_line (); | |
2766 | } | |
2767 | ||
2768 | /* Change to a different csect. */ | |
2769 | ||
2770 | static void | |
2771 | ppc_change_csect (sym) | |
2772 | symbolS *sym; | |
2773 | { | |
2774 | if (S_IS_DEFINED (sym)) | |
809ffe0d | 2775 | subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg); |
252b5132 RH |
2776 | else |
2777 | { | |
2778 | symbolS **list_ptr; | |
2779 | int after_toc; | |
2780 | int hold_chunksize; | |
2781 | symbolS *list; | |
2782 | ||
2783 | /* This is a new csect. We need to look at the symbol class to | |
2784 | figure out whether it should go in the text section or the | |
2785 | data section. */ | |
2786 | after_toc = 0; | |
809ffe0d | 2787 | switch (symbol_get_tc (sym)->class) |
252b5132 RH |
2788 | { |
2789 | case XMC_PR: | |
2790 | case XMC_RO: | |
2791 | case XMC_DB: | |
2792 | case XMC_GL: | |
2793 | case XMC_XO: | |
2794 | case XMC_SV: | |
2795 | case XMC_TI: | |
2796 | case XMC_TB: | |
2797 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 2798 | symbol_get_tc (sym)->subseg = ppc_text_subsegment; |
252b5132 RH |
2799 | ++ppc_text_subsegment; |
2800 | list_ptr = &ppc_text_csects; | |
2801 | break; | |
2802 | case XMC_RW: | |
2803 | case XMC_TC0: | |
2804 | case XMC_TC: | |
2805 | case XMC_DS: | |
2806 | case XMC_UA: | |
2807 | case XMC_BS: | |
2808 | case XMC_UC: | |
2809 | if (ppc_toc_csect != NULL | |
809ffe0d ILT |
2810 | && (symbol_get_tc (ppc_toc_csect)->subseg + 1 |
2811 | == ppc_data_subsegment)) | |
252b5132 RH |
2812 | after_toc = 1; |
2813 | S_SET_SEGMENT (sym, data_section); | |
809ffe0d | 2814 | symbol_get_tc (sym)->subseg = ppc_data_subsegment; |
252b5132 RH |
2815 | ++ppc_data_subsegment; |
2816 | list_ptr = &ppc_data_csects; | |
2817 | break; | |
2818 | default: | |
2819 | abort (); | |
2820 | } | |
2821 | ||
2822 | /* We set the obstack chunk size to a small value before | |
99a814a1 AM |
2823 | changing subsegments, so that we don't use a lot of memory |
2824 | space for what may be a small section. */ | |
252b5132 RH |
2825 | hold_chunksize = chunksize; |
2826 | chunksize = 64; | |
2827 | ||
809ffe0d ILT |
2828 | subseg_new (segment_name (S_GET_SEGMENT (sym)), |
2829 | symbol_get_tc (sym)->subseg); | |
252b5132 RH |
2830 | |
2831 | chunksize = hold_chunksize; | |
2832 | ||
2833 | if (after_toc) | |
2834 | ppc_after_toc_frag = frag_now; | |
2835 | ||
809ffe0d | 2836 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
2837 | S_SET_VALUE (sym, (valueT) frag_now_fix ()); |
2838 | ||
7f6d05e8 | 2839 | symbol_get_tc (sym)->align = (ppc_xcoff64) ? 3 : 2; |
809ffe0d ILT |
2840 | symbol_get_tc (sym)->output = 1; |
2841 | symbol_get_tc (sym)->within = sym; | |
81d4177b | 2842 | |
252b5132 | 2843 | for (list = *list_ptr; |
809ffe0d ILT |
2844 | symbol_get_tc (list)->next != (symbolS *) NULL; |
2845 | list = symbol_get_tc (list)->next) | |
252b5132 | 2846 | ; |
809ffe0d | 2847 | symbol_get_tc (list)->next = sym; |
81d4177b | 2848 | |
252b5132 | 2849 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); |
809ffe0d ILT |
2850 | symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP, |
2851 | &symbol_lastP); | |
252b5132 RH |
2852 | } |
2853 | ||
2854 | ppc_current_csect = sym; | |
2855 | } | |
2856 | ||
2857 | /* This function handles the .text and .data pseudo-ops. These | |
2858 | pseudo-ops aren't really used by XCOFF; we implement them for the | |
2859 | convenience of people who aren't used to XCOFF. */ | |
2860 | ||
2861 | static void | |
2862 | ppc_section (type) | |
2863 | int type; | |
2864 | { | |
2865 | const char *name; | |
2866 | symbolS *sym; | |
2867 | ||
2868 | if (type == 't') | |
2869 | name = ".text[PR]"; | |
2870 | else if (type == 'd') | |
2871 | name = ".data[RW]"; | |
2872 | else | |
2873 | abort (); | |
2874 | ||
2875 | sym = symbol_find_or_make (name); | |
2876 | ||
2877 | ppc_change_csect (sym); | |
2878 | ||
2879 | demand_empty_rest_of_line (); | |
2880 | } | |
2881 | ||
2882 | /* This function handles the .section pseudo-op. This is mostly to | |
2883 | give an error, since XCOFF only supports .text, .data and .bss, but | |
2884 | we do permit the user to name the text or data section. */ | |
2885 | ||
2886 | static void | |
2887 | ppc_named_section (ignore) | |
5480ccf3 | 2888 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2889 | { |
2890 | char *user_name; | |
2891 | const char *real_name; | |
2892 | char c; | |
2893 | symbolS *sym; | |
2894 | ||
2895 | user_name = input_line_pointer; | |
2896 | c = get_symbol_end (); | |
2897 | ||
2898 | if (strcmp (user_name, ".text") == 0) | |
2899 | real_name = ".text[PR]"; | |
2900 | else if (strcmp (user_name, ".data") == 0) | |
2901 | real_name = ".data[RW]"; | |
2902 | else | |
2903 | { | |
2904 | as_bad (_("The XCOFF file format does not support arbitrary sections")); | |
2905 | *input_line_pointer = c; | |
2906 | ignore_rest_of_line (); | |
2907 | return; | |
2908 | } | |
2909 | ||
2910 | *input_line_pointer = c; | |
2911 | ||
2912 | sym = symbol_find_or_make (real_name); | |
2913 | ||
2914 | ppc_change_csect (sym); | |
2915 | ||
2916 | demand_empty_rest_of_line (); | |
2917 | } | |
2918 | ||
2919 | /* The .extern pseudo-op. We create an undefined symbol. */ | |
2920 | ||
2921 | static void | |
2922 | ppc_extern (ignore) | |
5480ccf3 | 2923 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2924 | { |
2925 | char *name; | |
2926 | char endc; | |
2927 | ||
2928 | name = input_line_pointer; | |
2929 | endc = get_symbol_end (); | |
2930 | ||
2931 | (void) symbol_find_or_make (name); | |
2932 | ||
2933 | *input_line_pointer = endc; | |
2934 | ||
2935 | demand_empty_rest_of_line (); | |
2936 | } | |
2937 | ||
2938 | /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */ | |
2939 | ||
2940 | static void | |
2941 | ppc_lglobl (ignore) | |
5480ccf3 | 2942 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2943 | { |
2944 | char *name; | |
2945 | char endc; | |
2946 | symbolS *sym; | |
2947 | ||
2948 | name = input_line_pointer; | |
2949 | endc = get_symbol_end (); | |
2950 | ||
2951 | sym = symbol_find_or_make (name); | |
2952 | ||
2953 | *input_line_pointer = endc; | |
2954 | ||
809ffe0d | 2955 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
2956 | |
2957 | demand_empty_rest_of_line (); | |
2958 | } | |
2959 | ||
2960 | /* The .rename pseudo-op. The RS/6000 assembler can rename symbols, | |
2961 | although I don't know why it bothers. */ | |
2962 | ||
2963 | static void | |
2964 | ppc_rename (ignore) | |
5480ccf3 | 2965 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2966 | { |
2967 | char *name; | |
2968 | char endc; | |
2969 | symbolS *sym; | |
2970 | int len; | |
2971 | ||
2972 | name = input_line_pointer; | |
2973 | endc = get_symbol_end (); | |
2974 | ||
2975 | sym = symbol_find_or_make (name); | |
2976 | ||
2977 | *input_line_pointer = endc; | |
2978 | ||
2979 | if (*input_line_pointer != ',') | |
2980 | { | |
2981 | as_bad (_("missing rename string")); | |
2982 | ignore_rest_of_line (); | |
2983 | return; | |
2984 | } | |
2985 | ++input_line_pointer; | |
2986 | ||
809ffe0d | 2987 | symbol_get_tc (sym)->real_name = demand_copy_C_string (&len); |
252b5132 RH |
2988 | |
2989 | demand_empty_rest_of_line (); | |
2990 | } | |
2991 | ||
2992 | /* The .stabx pseudo-op. This is similar to a normal .stabs | |
2993 | pseudo-op, but slightly different. A sample is | |
2994 | .stabx "main:F-1",.main,142,0 | |
2995 | The first argument is the symbol name to create. The second is the | |
2996 | value, and the third is the storage class. The fourth seems to be | |
2997 | always zero, and I am assuming it is the type. */ | |
2998 | ||
2999 | static void | |
3000 | ppc_stabx (ignore) | |
5480ccf3 | 3001 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3002 | { |
3003 | char *name; | |
3004 | int len; | |
3005 | symbolS *sym; | |
3006 | expressionS exp; | |
3007 | ||
3008 | name = demand_copy_C_string (&len); | |
3009 | ||
3010 | if (*input_line_pointer != ',') | |
3011 | { | |
3012 | as_bad (_("missing value")); | |
3013 | return; | |
3014 | } | |
3015 | ++input_line_pointer; | |
3016 | ||
3017 | ppc_stab_symbol = true; | |
3018 | sym = symbol_make (name); | |
3019 | ppc_stab_symbol = false; | |
3020 | ||
809ffe0d | 3021 | symbol_get_tc (sym)->real_name = name; |
252b5132 RH |
3022 | |
3023 | (void) expression (&exp); | |
3024 | ||
3025 | switch (exp.X_op) | |
3026 | { | |
3027 | case O_illegal: | |
3028 | case O_absent: | |
3029 | case O_big: | |
3030 | as_bad (_("illegal .stabx expression; zero assumed")); | |
3031 | exp.X_add_number = 0; | |
3032 | /* Fall through. */ | |
3033 | case O_constant: | |
3034 | S_SET_VALUE (sym, (valueT) exp.X_add_number); | |
809ffe0d | 3035 | symbol_set_frag (sym, &zero_address_frag); |
252b5132 RH |
3036 | break; |
3037 | ||
3038 | case O_symbol: | |
3039 | if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section) | |
809ffe0d | 3040 | symbol_set_value_expression (sym, &exp); |
252b5132 RH |
3041 | else |
3042 | { | |
3043 | S_SET_VALUE (sym, | |
3044 | exp.X_add_number + S_GET_VALUE (exp.X_add_symbol)); | |
809ffe0d | 3045 | symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol)); |
252b5132 RH |
3046 | } |
3047 | break; | |
3048 | ||
3049 | default: | |
3050 | /* The value is some complex expression. This will probably | |
99a814a1 AM |
3051 | fail at some later point, but this is probably the right |
3052 | thing to do here. */ | |
809ffe0d | 3053 | symbol_set_value_expression (sym, &exp); |
252b5132 RH |
3054 | break; |
3055 | } | |
3056 | ||
3057 | S_SET_SEGMENT (sym, ppc_coff_debug_section); | |
809ffe0d | 3058 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3059 | |
3060 | if (*input_line_pointer != ',') | |
3061 | { | |
3062 | as_bad (_("missing class")); | |
3063 | return; | |
3064 | } | |
3065 | ++input_line_pointer; | |
3066 | ||
3067 | S_SET_STORAGE_CLASS (sym, get_absolute_expression ()); | |
3068 | ||
3069 | if (*input_line_pointer != ',') | |
3070 | { | |
3071 | as_bad (_("missing type")); | |
3072 | return; | |
3073 | } | |
3074 | ++input_line_pointer; | |
3075 | ||
3076 | S_SET_DATA_TYPE (sym, get_absolute_expression ()); | |
3077 | ||
809ffe0d | 3078 | symbol_get_tc (sym)->output = 1; |
252b5132 | 3079 | |
6877bb43 | 3080 | if (S_GET_STORAGE_CLASS (sym) == C_STSYM) { |
99a814a1 | 3081 | |
809ffe0d | 3082 | symbol_get_tc (sym)->within = ppc_current_block; |
252b5132 | 3083 | |
41ea10b1 | 3084 | /* In this case : |
99a814a1 | 3085 | |
41ea10b1 TR |
3086 | .bs name |
3087 | .stabx "z",arrays_,133,0 | |
3088 | .es | |
99a814a1 | 3089 | |
41ea10b1 | 3090 | .comm arrays_,13768,3 |
99a814a1 | 3091 | |
41ea10b1 TR |
3092 | resolve_symbol_value will copy the exp's "within" into sym's when the |
3093 | offset is 0. Since this seems to be corner case problem, | |
3094 | only do the correction for storage class C_STSYM. A better solution | |
0baf16f2 | 3095 | would be to have the tc field updated in ppc_symbol_new_hook. */ |
99a814a1 AM |
3096 | |
3097 | if (exp.X_op == O_symbol) | |
41ea10b1 TR |
3098 | { |
3099 | symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block; | |
3100 | } | |
6877bb43 | 3101 | } |
99a814a1 | 3102 | |
252b5132 RH |
3103 | if (exp.X_op != O_symbol |
3104 | || ! S_IS_EXTERNAL (exp.X_add_symbol) | |
3105 | || S_GET_SEGMENT (exp.X_add_symbol) != bss_section) | |
3106 | ppc_frob_label (sym); | |
3107 | else | |
3108 | { | |
3109 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
3110 | symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP); | |
809ffe0d ILT |
3111 | if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol) |
3112 | symbol_get_tc (ppc_current_csect)->within = sym; | |
252b5132 RH |
3113 | } |
3114 | ||
3115 | demand_empty_rest_of_line (); | |
3116 | } | |
3117 | ||
3118 | /* The .function pseudo-op. This takes several arguments. The first | |
3119 | argument seems to be the external name of the symbol. The second | |
3120 | argment seems to be the label for the start of the function. gcc | |
3121 | uses the same name for both. I have no idea what the third and | |
3122 | fourth arguments are meant to be. The optional fifth argument is | |
3123 | an expression for the size of the function. In COFF this symbol | |
3124 | gets an aux entry like that used for a csect. */ | |
3125 | ||
3126 | static void | |
3127 | ppc_function (ignore) | |
5480ccf3 | 3128 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3129 | { |
3130 | char *name; | |
3131 | char endc; | |
3132 | char *s; | |
3133 | symbolS *ext_sym; | |
3134 | symbolS *lab_sym; | |
3135 | ||
3136 | name = input_line_pointer; | |
3137 | endc = get_symbol_end (); | |
3138 | ||
3139 | /* Ignore any [PR] suffix. */ | |
3140 | name = ppc_canonicalize_symbol_name (name); | |
3141 | s = strchr (name, '['); | |
3142 | if (s != (char *) NULL | |
3143 | && strcmp (s + 1, "PR]") == 0) | |
3144 | *s = '\0'; | |
3145 | ||
3146 | ext_sym = symbol_find_or_make (name); | |
3147 | ||
3148 | *input_line_pointer = endc; | |
3149 | ||
3150 | if (*input_line_pointer != ',') | |
3151 | { | |
3152 | as_bad (_("missing symbol name")); | |
3153 | ignore_rest_of_line (); | |
3154 | return; | |
3155 | } | |
3156 | ++input_line_pointer; | |
3157 | ||
3158 | name = input_line_pointer; | |
3159 | endc = get_symbol_end (); | |
3160 | ||
3161 | lab_sym = symbol_find_or_make (name); | |
3162 | ||
3163 | *input_line_pointer = endc; | |
3164 | ||
3165 | if (ext_sym != lab_sym) | |
3166 | { | |
809ffe0d ILT |
3167 | expressionS exp; |
3168 | ||
3169 | exp.X_op = O_symbol; | |
3170 | exp.X_add_symbol = lab_sym; | |
3171 | exp.X_op_symbol = NULL; | |
3172 | exp.X_add_number = 0; | |
3173 | exp.X_unsigned = 0; | |
3174 | symbol_set_value_expression (ext_sym, &exp); | |
252b5132 RH |
3175 | } |
3176 | ||
809ffe0d ILT |
3177 | if (symbol_get_tc (ext_sym)->class == -1) |
3178 | symbol_get_tc (ext_sym)->class = XMC_PR; | |
3179 | symbol_get_tc (ext_sym)->output = 1; | |
252b5132 RH |
3180 | |
3181 | if (*input_line_pointer == ',') | |
3182 | { | |
3183 | expressionS ignore; | |
3184 | ||
3185 | /* Ignore the third argument. */ | |
3186 | ++input_line_pointer; | |
3187 | expression (&ignore); | |
3188 | if (*input_line_pointer == ',') | |
3189 | { | |
3190 | /* Ignore the fourth argument. */ | |
3191 | ++input_line_pointer; | |
3192 | expression (&ignore); | |
3193 | if (*input_line_pointer == ',') | |
3194 | { | |
3195 | /* The fifth argument is the function size. */ | |
3196 | ++input_line_pointer; | |
809ffe0d ILT |
3197 | symbol_get_tc (ext_sym)->size = symbol_new ("L0\001", |
3198 | absolute_section, | |
3199 | (valueT) 0, | |
3200 | &zero_address_frag); | |
3201 | pseudo_set (symbol_get_tc (ext_sym)->size); | |
252b5132 RH |
3202 | } |
3203 | } | |
3204 | } | |
3205 | ||
3206 | S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT); | |
3207 | SF_SET_FUNCTION (ext_sym); | |
3208 | SF_SET_PROCESS (ext_sym); | |
3209 | coff_add_linesym (ext_sym); | |
3210 | ||
3211 | demand_empty_rest_of_line (); | |
3212 | } | |
3213 | ||
3214 | /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named | |
8642cce8 TR |
3215 | ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym |
3216 | with the correct line number */ | |
5d6255fe | 3217 | |
8642cce8 | 3218 | static symbolS *saved_bi_sym = 0; |
252b5132 RH |
3219 | |
3220 | static void | |
3221 | ppc_bf (ignore) | |
5480ccf3 | 3222 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3223 | { |
3224 | symbolS *sym; | |
3225 | ||
3226 | sym = symbol_make (".bf"); | |
3227 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3228 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3229 | S_SET_VALUE (sym, frag_now_fix ()); |
3230 | S_SET_STORAGE_CLASS (sym, C_FCN); | |
3231 | ||
3232 | coff_line_base = get_absolute_expression (); | |
3233 | ||
3234 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3235 | SA_SET_SYM_LNNO (sym, coff_line_base); | |
3236 | ||
8642cce8 | 3237 | /* Line number for bi. */ |
5d6255fe | 3238 | if (saved_bi_sym) |
8642cce8 TR |
3239 | { |
3240 | S_SET_VALUE (saved_bi_sym, coff_n_line_nos); | |
3241 | saved_bi_sym = 0; | |
3242 | } | |
5d6255fe | 3243 | |
8642cce8 | 3244 | |
809ffe0d | 3245 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3246 | |
3247 | ppc_frob_label (sym); | |
3248 | ||
3249 | demand_empty_rest_of_line (); | |
3250 | } | |
3251 | ||
3252 | /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named | |
3253 | ".ef", except that the line number is absolute, not relative to the | |
3254 | most recent ".bf" symbol. */ | |
3255 | ||
3256 | static void | |
3257 | ppc_ef (ignore) | |
5480ccf3 | 3258 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3259 | { |
3260 | symbolS *sym; | |
3261 | ||
3262 | sym = symbol_make (".ef"); | |
3263 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3264 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3265 | S_SET_VALUE (sym, frag_now_fix ()); |
3266 | S_SET_STORAGE_CLASS (sym, C_FCN); | |
3267 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3268 | SA_SET_SYM_LNNO (sym, get_absolute_expression ()); | |
809ffe0d | 3269 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3270 | |
3271 | ppc_frob_label (sym); | |
3272 | ||
3273 | demand_empty_rest_of_line (); | |
3274 | } | |
3275 | ||
3276 | /* The .bi and .ei pseudo-ops. These take a string argument and | |
3277 | generates a C_BINCL or C_EINCL symbol, which goes at the start of | |
8642cce8 TR |
3278 | the symbol list. The value of .bi will be know when the next .bf |
3279 | is encountered. */ | |
252b5132 RH |
3280 | |
3281 | static void | |
3282 | ppc_biei (ei) | |
3283 | int ei; | |
3284 | { | |
3285 | static symbolS *last_biei; | |
3286 | ||
3287 | char *name; | |
3288 | int len; | |
3289 | symbolS *sym; | |
3290 | symbolS *look; | |
3291 | ||
3292 | name = demand_copy_C_string (&len); | |
3293 | ||
3294 | /* The value of these symbols is actually file offset. Here we set | |
3295 | the value to the index into the line number entries. In | |
3296 | ppc_frob_symbols we set the fix_line field, which will cause BFD | |
3297 | to do the right thing. */ | |
3298 | ||
3299 | sym = symbol_make (name); | |
3300 | /* obj-coff.c currently only handles line numbers correctly in the | |
3301 | .text section. */ | |
3302 | S_SET_SEGMENT (sym, text_section); | |
3303 | S_SET_VALUE (sym, coff_n_line_nos); | |
809ffe0d | 3304 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3305 | |
3306 | S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL); | |
809ffe0d | 3307 | symbol_get_tc (sym)->output = 1; |
81d4177b | 3308 | |
8642cce8 | 3309 | /* Save bi. */ |
5d6255fe | 3310 | if (ei) |
8642cce8 TR |
3311 | saved_bi_sym = 0; |
3312 | else | |
3313 | saved_bi_sym = sym; | |
3314 | ||
252b5132 RH |
3315 | for (look = last_biei ? last_biei : symbol_rootP; |
3316 | (look != (symbolS *) NULL | |
3317 | && (S_GET_STORAGE_CLASS (look) == C_FILE | |
3318 | || S_GET_STORAGE_CLASS (look) == C_BINCL | |
3319 | || S_GET_STORAGE_CLASS (look) == C_EINCL)); | |
3320 | look = symbol_next (look)) | |
3321 | ; | |
3322 | if (look != (symbolS *) NULL) | |
3323 | { | |
3324 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
3325 | symbol_insert (sym, look, &symbol_rootP, &symbol_lastP); | |
3326 | last_biei = sym; | |
3327 | } | |
3328 | ||
3329 | demand_empty_rest_of_line (); | |
3330 | } | |
3331 | ||
3332 | /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs". | |
3333 | There is one argument, which is a csect symbol. The value of the | |
3334 | .bs symbol is the index of this csect symbol. */ | |
3335 | ||
3336 | static void | |
3337 | ppc_bs (ignore) | |
5480ccf3 | 3338 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3339 | { |
3340 | char *name; | |
3341 | char endc; | |
3342 | symbolS *csect; | |
3343 | symbolS *sym; | |
3344 | ||
3345 | if (ppc_current_block != NULL) | |
3346 | as_bad (_("nested .bs blocks")); | |
3347 | ||
3348 | name = input_line_pointer; | |
3349 | endc = get_symbol_end (); | |
3350 | ||
3351 | csect = symbol_find_or_make (name); | |
3352 | ||
3353 | *input_line_pointer = endc; | |
3354 | ||
3355 | sym = symbol_make (".bs"); | |
3356 | S_SET_SEGMENT (sym, now_seg); | |
3357 | S_SET_STORAGE_CLASS (sym, C_BSTAT); | |
809ffe0d ILT |
3358 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
3359 | symbol_get_tc (sym)->output = 1; | |
252b5132 | 3360 | |
809ffe0d | 3361 | symbol_get_tc (sym)->within = csect; |
252b5132 RH |
3362 | |
3363 | ppc_frob_label (sym); | |
3364 | ||
3365 | ppc_current_block = sym; | |
3366 | ||
3367 | demand_empty_rest_of_line (); | |
3368 | } | |
3369 | ||
3370 | /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */ | |
3371 | ||
3372 | static void | |
3373 | ppc_es (ignore) | |
5480ccf3 | 3374 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3375 | { |
3376 | symbolS *sym; | |
3377 | ||
3378 | if (ppc_current_block == NULL) | |
3379 | as_bad (_(".es without preceding .bs")); | |
3380 | ||
3381 | sym = symbol_make (".es"); | |
3382 | S_SET_SEGMENT (sym, now_seg); | |
3383 | S_SET_STORAGE_CLASS (sym, C_ESTAT); | |
809ffe0d ILT |
3384 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
3385 | symbol_get_tc (sym)->output = 1; | |
252b5132 RH |
3386 | |
3387 | ppc_frob_label (sym); | |
3388 | ||
3389 | ppc_current_block = NULL; | |
3390 | ||
3391 | demand_empty_rest_of_line (); | |
3392 | } | |
3393 | ||
3394 | /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a | |
3395 | line number. */ | |
3396 | ||
3397 | static void | |
3398 | ppc_bb (ignore) | |
5480ccf3 | 3399 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3400 | { |
3401 | symbolS *sym; | |
3402 | ||
3403 | sym = symbol_make (".bb"); | |
3404 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3405 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3406 | S_SET_VALUE (sym, frag_now_fix ()); |
3407 | S_SET_STORAGE_CLASS (sym, C_BLOCK); | |
3408 | ||
3409 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3410 | SA_SET_SYM_LNNO (sym, get_absolute_expression ()); | |
3411 | ||
809ffe0d | 3412 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3413 | |
3414 | SF_SET_PROCESS (sym); | |
3415 | ||
3416 | ppc_frob_label (sym); | |
3417 | ||
3418 | demand_empty_rest_of_line (); | |
3419 | } | |
3420 | ||
3421 | /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a | |
3422 | line number. */ | |
3423 | ||
3424 | static void | |
3425 | ppc_eb (ignore) | |
5480ccf3 | 3426 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3427 | { |
3428 | symbolS *sym; | |
3429 | ||
3430 | sym = symbol_make (".eb"); | |
3431 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3432 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3433 | S_SET_VALUE (sym, frag_now_fix ()); |
3434 | S_SET_STORAGE_CLASS (sym, C_BLOCK); | |
3435 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3436 | SA_SET_SYM_LNNO (sym, get_absolute_expression ()); | |
809ffe0d | 3437 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3438 | |
3439 | SF_SET_PROCESS (sym); | |
3440 | ||
3441 | ppc_frob_label (sym); | |
3442 | ||
3443 | demand_empty_rest_of_line (); | |
3444 | } | |
3445 | ||
3446 | /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a | |
3447 | specified name. */ | |
3448 | ||
3449 | static void | |
3450 | ppc_bc (ignore) | |
5480ccf3 | 3451 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3452 | { |
3453 | char *name; | |
3454 | int len; | |
3455 | symbolS *sym; | |
3456 | ||
3457 | name = demand_copy_C_string (&len); | |
3458 | sym = symbol_make (name); | |
3459 | S_SET_SEGMENT (sym, ppc_coff_debug_section); | |
809ffe0d | 3460 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3461 | S_SET_STORAGE_CLASS (sym, C_BCOMM); |
3462 | S_SET_VALUE (sym, 0); | |
809ffe0d | 3463 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3464 | |
3465 | ppc_frob_label (sym); | |
3466 | ||
3467 | demand_empty_rest_of_line (); | |
3468 | } | |
3469 | ||
3470 | /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */ | |
3471 | ||
3472 | static void | |
3473 | ppc_ec (ignore) | |
5480ccf3 | 3474 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3475 | { |
3476 | symbolS *sym; | |
3477 | ||
3478 | sym = symbol_make (".ec"); | |
3479 | S_SET_SEGMENT (sym, ppc_coff_debug_section); | |
809ffe0d | 3480 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3481 | S_SET_STORAGE_CLASS (sym, C_ECOMM); |
3482 | S_SET_VALUE (sym, 0); | |
809ffe0d | 3483 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3484 | |
3485 | ppc_frob_label (sym); | |
3486 | ||
3487 | demand_empty_rest_of_line (); | |
3488 | } | |
3489 | ||
3490 | /* The .toc pseudo-op. Switch to the .toc subsegment. */ | |
3491 | ||
3492 | static void | |
3493 | ppc_toc (ignore) | |
5480ccf3 | 3494 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3495 | { |
3496 | if (ppc_toc_csect != (symbolS *) NULL) | |
809ffe0d | 3497 | subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg); |
252b5132 RH |
3498 | else |
3499 | { | |
3500 | subsegT subseg; | |
3501 | symbolS *sym; | |
3502 | symbolS *list; | |
81d4177b | 3503 | |
252b5132 RH |
3504 | subseg = ppc_data_subsegment; |
3505 | ++ppc_data_subsegment; | |
3506 | ||
3507 | subseg_new (segment_name (data_section), subseg); | |
3508 | ppc_toc_frag = frag_now; | |
3509 | ||
3510 | sym = symbol_find_or_make ("TOC[TC0]"); | |
809ffe0d | 3511 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3512 | S_SET_SEGMENT (sym, data_section); |
3513 | S_SET_VALUE (sym, (valueT) frag_now_fix ()); | |
809ffe0d ILT |
3514 | symbol_get_tc (sym)->subseg = subseg; |
3515 | symbol_get_tc (sym)->output = 1; | |
3516 | symbol_get_tc (sym)->within = sym; | |
252b5132 RH |
3517 | |
3518 | ppc_toc_csect = sym; | |
81d4177b | 3519 | |
252b5132 | 3520 | for (list = ppc_data_csects; |
809ffe0d ILT |
3521 | symbol_get_tc (list)->next != (symbolS *) NULL; |
3522 | list = symbol_get_tc (list)->next) | |
252b5132 | 3523 | ; |
809ffe0d | 3524 | symbol_get_tc (list)->next = sym; |
252b5132 RH |
3525 | |
3526 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
809ffe0d ILT |
3527 | symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP, |
3528 | &symbol_lastP); | |
252b5132 RH |
3529 | } |
3530 | ||
3531 | ppc_current_csect = ppc_toc_csect; | |
3532 | ||
3533 | demand_empty_rest_of_line (); | |
3534 | } | |
3535 | ||
3536 | /* The AIX assembler automatically aligns the operands of a .long or | |
3537 | .short pseudo-op, and we want to be compatible. */ | |
3538 | ||
3539 | static void | |
3540 | ppc_xcoff_cons (log_size) | |
3541 | int log_size; | |
3542 | { | |
3543 | frag_align (log_size, 0, 0); | |
3544 | record_alignment (now_seg, log_size); | |
3545 | cons (1 << log_size); | |
3546 | } | |
3547 | ||
3548 | static void | |
3549 | ppc_vbyte (dummy) | |
5480ccf3 | 3550 | int dummy ATTRIBUTE_UNUSED; |
252b5132 RH |
3551 | { |
3552 | expressionS exp; | |
3553 | int byte_count; | |
3554 | ||
3555 | (void) expression (&exp); | |
3556 | ||
3557 | if (exp.X_op != O_constant) | |
3558 | { | |
3559 | as_bad (_("non-constant byte count")); | |
3560 | return; | |
3561 | } | |
3562 | ||
3563 | byte_count = exp.X_add_number; | |
3564 | ||
3565 | if (*input_line_pointer != ',') | |
3566 | { | |
3567 | as_bad (_("missing value")); | |
3568 | return; | |
3569 | } | |
3570 | ||
3571 | ++input_line_pointer; | |
3572 | cons (byte_count); | |
3573 | } | |
3574 | ||
3575 | #endif /* OBJ_XCOFF */ | |
0baf16f2 | 3576 | #if defined (OBJ_XCOFF) || defined (OBJ_ELF) |
252b5132 RH |
3577 | \f |
3578 | /* The .tc pseudo-op. This is used when generating either XCOFF or | |
3579 | ELF. This takes two or more arguments. | |
3580 | ||
3581 | When generating XCOFF output, the first argument is the name to | |
3582 | give to this location in the toc; this will be a symbol with class | |
0baf16f2 | 3583 | TC. The rest of the arguments are N-byte values to actually put at |
252b5132 | 3584 | this location in the TOC; often there is just one more argument, a |
0baf16f2 AM |
3585 | relocateable symbol reference. The size of the value to store |
3586 | depends on target word size. A 32-bit target uses 4-byte values, a | |
3587 | 64-bit target uses 8-byte values. | |
252b5132 RH |
3588 | |
3589 | When not generating XCOFF output, the arguments are the same, but | |
3590 | the first argument is simply ignored. */ | |
3591 | ||
3592 | static void | |
3593 | ppc_tc (ignore) | |
92161534 | 3594 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3595 | { |
3596 | #ifdef OBJ_XCOFF | |
3597 | ||
3598 | /* Define the TOC symbol name. */ | |
3599 | { | |
3600 | char *name; | |
3601 | char endc; | |
3602 | symbolS *sym; | |
3603 | ||
3604 | if (ppc_toc_csect == (symbolS *) NULL | |
3605 | || ppc_toc_csect != ppc_current_csect) | |
3606 | { | |
3607 | as_bad (_(".tc not in .toc section")); | |
3608 | ignore_rest_of_line (); | |
3609 | return; | |
3610 | } | |
3611 | ||
3612 | name = input_line_pointer; | |
3613 | endc = get_symbol_end (); | |
3614 | ||
3615 | sym = symbol_find_or_make (name); | |
3616 | ||
3617 | *input_line_pointer = endc; | |
3618 | ||
3619 | if (S_IS_DEFINED (sym)) | |
3620 | { | |
3621 | symbolS *label; | |
3622 | ||
809ffe0d ILT |
3623 | label = symbol_get_tc (ppc_current_csect)->within; |
3624 | if (symbol_get_tc (label)->class != XMC_TC0) | |
252b5132 RH |
3625 | { |
3626 | as_bad (_(".tc with no label")); | |
3627 | ignore_rest_of_line (); | |
3628 | return; | |
3629 | } | |
3630 | ||
3631 | S_SET_SEGMENT (label, S_GET_SEGMENT (sym)); | |
809ffe0d | 3632 | symbol_set_frag (label, symbol_get_frag (sym)); |
252b5132 RH |
3633 | S_SET_VALUE (label, S_GET_VALUE (sym)); |
3634 | ||
3635 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
3636 | ++input_line_pointer; | |
3637 | ||
3638 | return; | |
3639 | } | |
3640 | ||
3641 | S_SET_SEGMENT (sym, now_seg); | |
809ffe0d | 3642 | symbol_set_frag (sym, frag_now); |
252b5132 | 3643 | S_SET_VALUE (sym, (valueT) frag_now_fix ()); |
809ffe0d ILT |
3644 | symbol_get_tc (sym)->class = XMC_TC; |
3645 | symbol_get_tc (sym)->output = 1; | |
252b5132 RH |
3646 | |
3647 | ppc_frob_label (sym); | |
3648 | } | |
3649 | ||
0baf16f2 AM |
3650 | #endif /* OBJ_XCOFF */ |
3651 | #ifdef OBJ_ELF | |
9c7977b3 | 3652 | int align; |
252b5132 RH |
3653 | |
3654 | /* Skip the TOC symbol name. */ | |
3655 | while (is_part_of_name (*input_line_pointer) | |
3656 | || *input_line_pointer == '[' | |
3657 | || *input_line_pointer == ']' | |
3658 | || *input_line_pointer == '{' | |
3659 | || *input_line_pointer == '}') | |
3660 | ++input_line_pointer; | |
3661 | ||
0baf16f2 | 3662 | /* Align to a four/eight byte boundary. */ |
9c7977b3 AM |
3663 | align = BFD_DEFAULT_TARGET_SIZE == 64 && ppc_size == PPC_OPCODE_64 ? 3 : 2; |
3664 | frag_align (align, 0, 0); | |
3665 | record_alignment (now_seg, align); | |
0baf16f2 | 3666 | #endif /* OBJ_ELF */ |
252b5132 RH |
3667 | |
3668 | if (*input_line_pointer != ',') | |
3669 | demand_empty_rest_of_line (); | |
3670 | else | |
3671 | { | |
3672 | ++input_line_pointer; | |
7f6d05e8 | 3673 | cons ((ppc_size == PPC_OPCODE_64) ? 8 : 4); |
252b5132 RH |
3674 | } |
3675 | } | |
0baf16f2 AM |
3676 | |
3677 | /* Pseudo-op .machine. */ | |
15c1449b AM |
3678 | /* FIXME: `.machine' is a nop for the moment. It would be nice to |
3679 | accept this directive on the first line of input and set ppc_size | |
3680 | and the target format accordingly. Unfortunately, the target | |
3681 | format is selected in output-file.c:output_file_create before we | |
3682 | even get to md_begin, so it's not possible without changing | |
3683 | as.c:main. */ | |
0baf16f2 AM |
3684 | |
3685 | static void | |
3686 | ppc_machine (ignore) | |
3687 | int ignore ATTRIBUTE_UNUSED; | |
3688 | { | |
3689 | discard_rest_of_line (); | |
3690 | } | |
3691 | ||
3692 | /* See whether a symbol is in the TOC section. */ | |
3693 | ||
3694 | static int | |
3695 | ppc_is_toc_sym (sym) | |
3696 | symbolS *sym; | |
3697 | { | |
3698 | #ifdef OBJ_XCOFF | |
3699 | return symbol_get_tc (sym)->class == XMC_TC; | |
3700 | #endif | |
3701 | #ifdef OBJ_ELF | |
3702 | const char *sname = segment_name (S_GET_SEGMENT (sym)); | |
9c7977b3 | 3703 | if (BFD_DEFAULT_TARGET_SIZE == 64 && ppc_size == PPC_OPCODE_64) |
0baf16f2 AM |
3704 | return strcmp (sname, ".toc") == 0; |
3705 | else | |
3706 | return strcmp (sname, ".got") == 0; | |
3707 | #endif | |
3708 | } | |
3709 | #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */ | |
252b5132 RH |
3710 | \f |
3711 | #ifdef TE_PE | |
3712 | ||
99a814a1 | 3713 | /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */ |
252b5132 RH |
3714 | |
3715 | /* Set the current section. */ | |
3716 | static void | |
3717 | ppc_set_current_section (new) | |
3718 | segT new; | |
3719 | { | |
3720 | ppc_previous_section = ppc_current_section; | |
3721 | ppc_current_section = new; | |
3722 | } | |
3723 | ||
3724 | /* pseudo-op: .previous | |
3725 | behaviour: toggles the current section with the previous section. | |
3726 | errors: None | |
99a814a1 AM |
3727 | warnings: "No previous section" */ |
3728 | ||
252b5132 | 3729 | static void |
99a814a1 | 3730 | ppc_previous (ignore) |
5480ccf3 | 3731 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3732 | { |
3733 | symbolS *tmp; | |
3734 | ||
81d4177b | 3735 | if (ppc_previous_section == NULL) |
252b5132 | 3736 | { |
99a814a1 | 3737 | as_warn (_("No previous section to return to. Directive ignored.")); |
252b5132 RH |
3738 | return; |
3739 | } | |
3740 | ||
99a814a1 | 3741 | subseg_set (ppc_previous_section, 0); |
252b5132 | 3742 | |
99a814a1 | 3743 | ppc_set_current_section (ppc_previous_section); |
252b5132 RH |
3744 | } |
3745 | ||
3746 | /* pseudo-op: .pdata | |
3747 | behaviour: predefined read only data section | |
3748 | double word aligned | |
3749 | errors: None | |
3750 | warnings: None | |
3751 | initial: .section .pdata "adr3" | |
3752 | a - don't know -- maybe a misprint | |
3753 | d - initialized data | |
3754 | r - readable | |
3755 | 3 - double word aligned (that would be 4 byte boundary) | |
3756 | ||
3757 | commentary: | |
3758 | Tag index tables (also known as the function table) for exception | |
99a814a1 | 3759 | handling, debugging, etc. */ |
252b5132 | 3760 | |
252b5132 | 3761 | static void |
99a814a1 | 3762 | ppc_pdata (ignore) |
5480ccf3 | 3763 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 3764 | { |
81d4177b | 3765 | if (pdata_section == 0) |
252b5132 RH |
3766 | { |
3767 | pdata_section = subseg_new (".pdata", 0); | |
81d4177b | 3768 | |
252b5132 RH |
3769 | bfd_set_section_flags (stdoutput, pdata_section, |
3770 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
3771 | | SEC_READONLY | SEC_DATA )); | |
81d4177b | 3772 | |
252b5132 RH |
3773 | bfd_set_section_alignment (stdoutput, pdata_section, 2); |
3774 | } | |
3775 | else | |
3776 | { | |
99a814a1 | 3777 | pdata_section = subseg_new (".pdata", 0); |
252b5132 | 3778 | } |
99a814a1 | 3779 | ppc_set_current_section (pdata_section); |
252b5132 RH |
3780 | } |
3781 | ||
3782 | /* pseudo-op: .ydata | |
3783 | behaviour: predefined read only data section | |
3784 | double word aligned | |
3785 | errors: None | |
3786 | warnings: None | |
3787 | initial: .section .ydata "drw3" | |
3788 | a - don't know -- maybe a misprint | |
3789 | d - initialized data | |
3790 | r - readable | |
3791 | 3 - double word aligned (that would be 4 byte boundary) | |
3792 | commentary: | |
3793 | Tag tables (also known as the scope table) for exception handling, | |
99a814a1 AM |
3794 | debugging, etc. */ |
3795 | ||
252b5132 | 3796 | static void |
99a814a1 | 3797 | ppc_ydata (ignore) |
5480ccf3 | 3798 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 3799 | { |
81d4177b | 3800 | if (ydata_section == 0) |
252b5132 RH |
3801 | { |
3802 | ydata_section = subseg_new (".ydata", 0); | |
3803 | bfd_set_section_flags (stdoutput, ydata_section, | |
99a814a1 AM |
3804 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
3805 | | SEC_READONLY | SEC_DATA )); | |
252b5132 RH |
3806 | |
3807 | bfd_set_section_alignment (stdoutput, ydata_section, 3); | |
3808 | } | |
3809 | else | |
3810 | { | |
3811 | ydata_section = subseg_new (".ydata", 0); | |
3812 | } | |
99a814a1 | 3813 | ppc_set_current_section (ydata_section); |
252b5132 RH |
3814 | } |
3815 | ||
3816 | /* pseudo-op: .reldata | |
3817 | behaviour: predefined read write data section | |
3818 | double word aligned (4-byte) | |
3819 | FIXME: relocation is applied to it | |
3820 | FIXME: what's the difference between this and .data? | |
3821 | errors: None | |
3822 | warnings: None | |
3823 | initial: .section .reldata "drw3" | |
3824 | d - initialized data | |
3825 | r - readable | |
3826 | w - writeable | |
3827 | 3 - double word aligned (that would be 8 byte boundary) | |
3828 | ||
3829 | commentary: | |
3830 | Like .data, but intended to hold data subject to relocation, such as | |
99a814a1 AM |
3831 | function descriptors, etc. */ |
3832 | ||
252b5132 | 3833 | static void |
99a814a1 | 3834 | ppc_reldata (ignore) |
5480ccf3 | 3835 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3836 | { |
3837 | if (reldata_section == 0) | |
3838 | { | |
3839 | reldata_section = subseg_new (".reldata", 0); | |
3840 | ||
3841 | bfd_set_section_flags (stdoutput, reldata_section, | |
99a814a1 AM |
3842 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
3843 | | SEC_DATA)); | |
252b5132 RH |
3844 | |
3845 | bfd_set_section_alignment (stdoutput, reldata_section, 2); | |
3846 | } | |
3847 | else | |
3848 | { | |
3849 | reldata_section = subseg_new (".reldata", 0); | |
3850 | } | |
99a814a1 | 3851 | ppc_set_current_section (reldata_section); |
252b5132 RH |
3852 | } |
3853 | ||
3854 | /* pseudo-op: .rdata | |
3855 | behaviour: predefined read only data section | |
3856 | double word aligned | |
3857 | errors: None | |
3858 | warnings: None | |
3859 | initial: .section .rdata "dr3" | |
3860 | d - initialized data | |
3861 | r - readable | |
99a814a1 AM |
3862 | 3 - double word aligned (that would be 4 byte boundary) */ |
3863 | ||
252b5132 | 3864 | static void |
99a814a1 | 3865 | ppc_rdata (ignore) |
5480ccf3 | 3866 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3867 | { |
3868 | if (rdata_section == 0) | |
3869 | { | |
3870 | rdata_section = subseg_new (".rdata", 0); | |
3871 | bfd_set_section_flags (stdoutput, rdata_section, | |
3872 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
3873 | | SEC_READONLY | SEC_DATA )); | |
3874 | ||
3875 | bfd_set_section_alignment (stdoutput, rdata_section, 2); | |
3876 | } | |
3877 | else | |
3878 | { | |
3879 | rdata_section = subseg_new (".rdata", 0); | |
3880 | } | |
99a814a1 | 3881 | ppc_set_current_section (rdata_section); |
252b5132 RH |
3882 | } |
3883 | ||
3884 | /* pseudo-op: .ualong | |
81d4177b | 3885 | behaviour: much like .int, with the exception that no alignment is |
252b5132 RH |
3886 | performed. |
3887 | FIXME: test the alignment statement | |
3888 | errors: None | |
99a814a1 AM |
3889 | warnings: None */ |
3890 | ||
252b5132 | 3891 | static void |
99a814a1 | 3892 | ppc_ualong (ignore) |
5480ccf3 | 3893 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 3894 | { |
99a814a1 AM |
3895 | /* Try for long. */ |
3896 | cons (4); | |
252b5132 RH |
3897 | } |
3898 | ||
3899 | /* pseudo-op: .znop <symbol name> | |
3900 | behaviour: Issue a nop instruction | |
3901 | Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using | |
3902 | the supplied symbol name. | |
3903 | errors: None | |
99a814a1 AM |
3904 | warnings: Missing symbol name */ |
3905 | ||
252b5132 | 3906 | static void |
99a814a1 | 3907 | ppc_znop (ignore) |
5480ccf3 | 3908 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3909 | { |
3910 | unsigned long insn; | |
3911 | const struct powerpc_opcode *opcode; | |
3912 | expressionS ex; | |
3913 | char *f; | |
252b5132 | 3914 | symbolS *sym; |
252b5132 RH |
3915 | char *symbol_name; |
3916 | char c; | |
3917 | char *name; | |
3918 | unsigned int exp; | |
3919 | flagword flags; | |
3920 | asection *sec; | |
3921 | ||
99a814a1 | 3922 | /* Strip out the symbol name. */ |
252b5132 RH |
3923 | symbol_name = input_line_pointer; |
3924 | c = get_symbol_end (); | |
3925 | ||
3926 | name = xmalloc (input_line_pointer - symbol_name + 1); | |
3927 | strcpy (name, symbol_name); | |
3928 | ||
3929 | sym = symbol_find_or_make (name); | |
3930 | ||
3931 | *input_line_pointer = c; | |
3932 | ||
3933 | SKIP_WHITESPACE (); | |
3934 | ||
3935 | /* Look up the opcode in the hash table. */ | |
3936 | opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop"); | |
3937 | ||
99a814a1 | 3938 | /* Stick in the nop. */ |
252b5132 RH |
3939 | insn = opcode->opcode; |
3940 | ||
3941 | /* Write out the instruction. */ | |
3942 | f = frag_more (4); | |
3943 | md_number_to_chars (f, insn, 4); | |
3944 | fix_new (frag_now, | |
3945 | f - frag_now->fr_literal, | |
3946 | 4, | |
3947 | sym, | |
3948 | 0, | |
3949 | 0, | |
3950 | BFD_RELOC_16_GOT_PCREL); | |
3951 | ||
3952 | } | |
3953 | ||
81d4177b KH |
3954 | /* pseudo-op: |
3955 | behaviour: | |
3956 | errors: | |
99a814a1 AM |
3957 | warnings: */ |
3958 | ||
252b5132 | 3959 | static void |
99a814a1 | 3960 | ppc_pe_comm (lcomm) |
252b5132 RH |
3961 | int lcomm; |
3962 | { | |
3963 | register char *name; | |
3964 | register char c; | |
3965 | register char *p; | |
3966 | offsetT temp; | |
3967 | register symbolS *symbolP; | |
3968 | offsetT align; | |
3969 | ||
3970 | name = input_line_pointer; | |
3971 | c = get_symbol_end (); | |
3972 | ||
99a814a1 | 3973 | /* just after name is now '\0'. */ |
252b5132 RH |
3974 | p = input_line_pointer; |
3975 | *p = c; | |
3976 | SKIP_WHITESPACE (); | |
3977 | if (*input_line_pointer != ',') | |
3978 | { | |
3979 | as_bad (_("Expected comma after symbol-name: rest of line ignored.")); | |
3980 | ignore_rest_of_line (); | |
3981 | return; | |
3982 | } | |
3983 | ||
3984 | input_line_pointer++; /* skip ',' */ | |
3985 | if ((temp = get_absolute_expression ()) < 0) | |
3986 | { | |
3987 | as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp); | |
3988 | ignore_rest_of_line (); | |
3989 | return; | |
3990 | } | |
3991 | ||
3992 | if (! lcomm) | |
3993 | { | |
3994 | /* The third argument to .comm is the alignment. */ | |
3995 | if (*input_line_pointer != ',') | |
3996 | align = 3; | |
3997 | else | |
3998 | { | |
3999 | ++input_line_pointer; | |
4000 | align = get_absolute_expression (); | |
4001 | if (align <= 0) | |
4002 | { | |
4003 | as_warn (_("ignoring bad alignment")); | |
4004 | align = 3; | |
4005 | } | |
4006 | } | |
4007 | } | |
4008 | ||
4009 | *p = 0; | |
4010 | symbolP = symbol_find_or_make (name); | |
4011 | ||
4012 | *p = c; | |
4013 | if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) | |
4014 | { | |
4015 | as_bad (_("Ignoring attempt to re-define symbol `%s'."), | |
4016 | S_GET_NAME (symbolP)); | |
4017 | ignore_rest_of_line (); | |
4018 | return; | |
4019 | } | |
4020 | ||
4021 | if (S_GET_VALUE (symbolP)) | |
4022 | { | |
4023 | if (S_GET_VALUE (symbolP) != (valueT) temp) | |
4024 | as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."), | |
4025 | S_GET_NAME (symbolP), | |
4026 | (long) S_GET_VALUE (symbolP), | |
4027 | (long) temp); | |
4028 | } | |
4029 | else | |
4030 | { | |
4031 | S_SET_VALUE (symbolP, (valueT) temp); | |
4032 | S_SET_EXTERNAL (symbolP); | |
4033 | } | |
4034 | ||
4035 | demand_empty_rest_of_line (); | |
4036 | } | |
4037 | ||
4038 | /* | |
4039 | * implement the .section pseudo op: | |
4040 | * .section name {, "flags"} | |
4041 | * ^ ^ | |
4042 | * | +--- optional flags: 'b' for bss | |
4043 | * | 'i' for info | |
4044 | * +-- section name 'l' for lib | |
4045 | * 'n' for noload | |
4046 | * 'o' for over | |
4047 | * 'w' for data | |
4048 | * 'd' (apparently m88k for data) | |
4049 | * 'x' for text | |
4050 | * But if the argument is not a quoted string, treat it as a | |
4051 | * subsegment number. | |
4052 | * | |
4053 | * FIXME: this is a copy of the section processing from obj-coff.c, with | |
4054 | * additions/changes for the moto-pas assembler support. There are three | |
4055 | * categories: | |
4056 | * | |
81d4177b | 4057 | * FIXME: I just noticed this. This doesn't work at all really. It it |
252b5132 RH |
4058 | * setting bits that bfd probably neither understands or uses. The |
4059 | * correct approach (?) will have to incorporate extra fields attached | |
4060 | * to the section to hold the system specific stuff. (krk) | |
4061 | * | |
4062 | * Section Contents: | |
4063 | * 'a' - unknown - referred to in documentation, but no definition supplied | |
4064 | * 'c' - section has code | |
4065 | * 'd' - section has initialized data | |
4066 | * 'u' - section has uninitialized data | |
4067 | * 'i' - section contains directives (info) | |
4068 | * 'n' - section can be discarded | |
4069 | * 'R' - remove section at link time | |
4070 | * | |
4071 | * Section Protection: | |
4072 | * 'r' - section is readable | |
4073 | * 'w' - section is writeable | |
4074 | * 'x' - section is executable | |
4075 | * 's' - section is sharable | |
4076 | * | |
4077 | * Section Alignment: | |
4078 | * '0' - align to byte boundary | |
4079 | * '1' - align to halfword undary | |
4080 | * '2' - align to word boundary | |
4081 | * '3' - align to doubleword boundary | |
4082 | * '4' - align to quadword boundary | |
4083 | * '5' - align to 32 byte boundary | |
4084 | * '6' - align to 64 byte boundary | |
4085 | * | |
4086 | */ | |
4087 | ||
4088 | void | |
4089 | ppc_pe_section (ignore) | |
5480ccf3 | 4090 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 4091 | { |
99a814a1 | 4092 | /* Strip out the section name. */ |
252b5132 RH |
4093 | char *section_name; |
4094 | char c; | |
4095 | char *name; | |
4096 | unsigned int exp; | |
4097 | flagword flags; | |
4098 | segT sec; | |
4099 | int align; | |
4100 | ||
4101 | section_name = input_line_pointer; | |
4102 | c = get_symbol_end (); | |
4103 | ||
4104 | name = xmalloc (input_line_pointer - section_name + 1); | |
4105 | strcpy (name, section_name); | |
4106 | ||
4107 | *input_line_pointer = c; | |
4108 | ||
4109 | SKIP_WHITESPACE (); | |
4110 | ||
4111 | exp = 0; | |
4112 | flags = SEC_NO_FLAGS; | |
4113 | ||
4114 | if (strcmp (name, ".idata$2") == 0) | |
4115 | { | |
4116 | align = 0; | |
4117 | } | |
4118 | else if (strcmp (name, ".idata$3") == 0) | |
4119 | { | |
4120 | align = 0; | |
4121 | } | |
4122 | else if (strcmp (name, ".idata$4") == 0) | |
4123 | { | |
4124 | align = 2; | |
4125 | } | |
4126 | else if (strcmp (name, ".idata$5") == 0) | |
4127 | { | |
4128 | align = 2; | |
4129 | } | |
4130 | else if (strcmp (name, ".idata$6") == 0) | |
4131 | { | |
4132 | align = 1; | |
4133 | } | |
4134 | else | |
99a814a1 AM |
4135 | /* Default alignment to 16 byte boundary. */ |
4136 | align = 4; | |
252b5132 RH |
4137 | |
4138 | if (*input_line_pointer == ',') | |
4139 | { | |
4140 | ++input_line_pointer; | |
4141 | SKIP_WHITESPACE (); | |
4142 | if (*input_line_pointer != '"') | |
4143 | exp = get_absolute_expression (); | |
4144 | else | |
4145 | { | |
4146 | ++input_line_pointer; | |
4147 | while (*input_line_pointer != '"' | |
4148 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
4149 | { | |
4150 | switch (*input_line_pointer) | |
4151 | { | |
4152 | /* Section Contents */ | |
4153 | case 'a': /* unknown */ | |
4154 | as_bad (_("Unsupported section attribute -- 'a'")); | |
4155 | break; | |
4156 | case 'c': /* code section */ | |
81d4177b | 4157 | flags |= SEC_CODE; |
252b5132 RH |
4158 | break; |
4159 | case 'd': /* section has initialized data */ | |
4160 | flags |= SEC_DATA; | |
4161 | break; | |
4162 | case 'u': /* section has uninitialized data */ | |
4163 | /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA | |
4164 | in winnt.h */ | |
4165 | flags |= SEC_ROM; | |
4166 | break; | |
4167 | case 'i': /* section contains directives (info) */ | |
4168 | /* FIXME: This is IMAGE_SCN_LNK_INFO | |
4169 | in winnt.h */ | |
4170 | flags |= SEC_HAS_CONTENTS; | |
4171 | break; | |
4172 | case 'n': /* section can be discarded */ | |
81d4177b | 4173 | flags &=~ SEC_LOAD; |
252b5132 RH |
4174 | break; |
4175 | case 'R': /* Remove section at link time */ | |
4176 | flags |= SEC_NEVER_LOAD; | |
4177 | break; | |
4178 | ||
4179 | /* Section Protection */ | |
4180 | case 'r': /* section is readable */ | |
4181 | flags |= IMAGE_SCN_MEM_READ; | |
4182 | break; | |
4183 | case 'w': /* section is writeable */ | |
4184 | flags |= IMAGE_SCN_MEM_WRITE; | |
4185 | break; | |
4186 | case 'x': /* section is executable */ | |
4187 | flags |= IMAGE_SCN_MEM_EXECUTE; | |
4188 | break; | |
4189 | case 's': /* section is sharable */ | |
4190 | flags |= IMAGE_SCN_MEM_SHARED; | |
4191 | break; | |
4192 | ||
4193 | /* Section Alignment */ | |
4194 | case '0': /* align to byte boundary */ | |
4195 | flags |= IMAGE_SCN_ALIGN_1BYTES; | |
4196 | align = 0; | |
4197 | break; | |
4198 | case '1': /* align to halfword boundary */ | |
4199 | flags |= IMAGE_SCN_ALIGN_2BYTES; | |
4200 | align = 1; | |
4201 | break; | |
4202 | case '2': /* align to word boundary */ | |
4203 | flags |= IMAGE_SCN_ALIGN_4BYTES; | |
4204 | align = 2; | |
4205 | break; | |
4206 | case '3': /* align to doubleword boundary */ | |
4207 | flags |= IMAGE_SCN_ALIGN_8BYTES; | |
4208 | align = 3; | |
4209 | break; | |
4210 | case '4': /* align to quadword boundary */ | |
4211 | flags |= IMAGE_SCN_ALIGN_16BYTES; | |
4212 | align = 4; | |
4213 | break; | |
4214 | case '5': /* align to 32 byte boundary */ | |
4215 | flags |= IMAGE_SCN_ALIGN_32BYTES; | |
4216 | align = 5; | |
4217 | break; | |
4218 | case '6': /* align to 64 byte boundary */ | |
4219 | flags |= IMAGE_SCN_ALIGN_64BYTES; | |
4220 | align = 6; | |
4221 | break; | |
4222 | ||
4223 | default: | |
99a814a1 AM |
4224 | as_bad (_("unknown section attribute '%c'"), |
4225 | *input_line_pointer); | |
252b5132 RH |
4226 | break; |
4227 | } | |
4228 | ++input_line_pointer; | |
4229 | } | |
4230 | if (*input_line_pointer == '"') | |
4231 | ++input_line_pointer; | |
4232 | } | |
4233 | } | |
4234 | ||
4235 | sec = subseg_new (name, (subsegT) exp); | |
4236 | ||
99a814a1 | 4237 | ppc_set_current_section (sec); |
252b5132 RH |
4238 | |
4239 | if (flags != SEC_NO_FLAGS) | |
4240 | { | |
4241 | if (! bfd_set_section_flags (stdoutput, sec, flags)) | |
4242 | as_bad (_("error setting flags for \"%s\": %s"), | |
4243 | bfd_section_name (stdoutput, sec), | |
4244 | bfd_errmsg (bfd_get_error ())); | |
4245 | } | |
4246 | ||
99a814a1 | 4247 | bfd_set_section_alignment (stdoutput, sec, align); |
252b5132 RH |
4248 | |
4249 | } | |
4250 | ||
4251 | static void | |
4252 | ppc_pe_function (ignore) | |
5480ccf3 | 4253 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4254 | { |
4255 | char *name; | |
4256 | char endc; | |
4257 | symbolS *ext_sym; | |
4258 | ||
4259 | name = input_line_pointer; | |
4260 | endc = get_symbol_end (); | |
4261 | ||
4262 | ext_sym = symbol_find_or_make (name); | |
4263 | ||
4264 | *input_line_pointer = endc; | |
4265 | ||
4266 | S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT); | |
4267 | SF_SET_FUNCTION (ext_sym); | |
4268 | SF_SET_PROCESS (ext_sym); | |
4269 | coff_add_linesym (ext_sym); | |
4270 | ||
4271 | demand_empty_rest_of_line (); | |
4272 | } | |
4273 | ||
4274 | static void | |
4275 | ppc_pe_tocd (ignore) | |
5480ccf3 | 4276 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4277 | { |
4278 | if (tocdata_section == 0) | |
4279 | { | |
4280 | tocdata_section = subseg_new (".tocd", 0); | |
99a814a1 | 4281 | /* FIXME: section flags won't work. */ |
252b5132 RH |
4282 | bfd_set_section_flags (stdoutput, tocdata_section, |
4283 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
99a814a1 | 4284 | | SEC_READONLY | SEC_DATA)); |
252b5132 RH |
4285 | |
4286 | bfd_set_section_alignment (stdoutput, tocdata_section, 2); | |
4287 | } | |
4288 | else | |
4289 | { | |
4290 | rdata_section = subseg_new (".tocd", 0); | |
4291 | } | |
4292 | ||
99a814a1 | 4293 | ppc_set_current_section (tocdata_section); |
252b5132 RH |
4294 | |
4295 | demand_empty_rest_of_line (); | |
4296 | } | |
4297 | ||
4298 | /* Don't adjust TOC relocs to use the section symbol. */ | |
4299 | ||
4300 | int | |
4301 | ppc_pe_fix_adjustable (fix) | |
4302 | fixS *fix; | |
4303 | { | |
4304 | return fix->fx_r_type != BFD_RELOC_PPC_TOC16; | |
4305 | } | |
4306 | ||
4307 | #endif | |
4308 | \f | |
4309 | #ifdef OBJ_XCOFF | |
4310 | ||
4311 | /* XCOFF specific symbol and file handling. */ | |
4312 | ||
4313 | /* Canonicalize the symbol name. We use the to force the suffix, if | |
4314 | any, to use square brackets, and to be in upper case. */ | |
4315 | ||
4316 | char * | |
4317 | ppc_canonicalize_symbol_name (name) | |
4318 | char *name; | |
4319 | { | |
4320 | char *s; | |
4321 | ||
4322 | if (ppc_stab_symbol) | |
4323 | return name; | |
4324 | ||
4325 | for (s = name; *s != '\0' && *s != '{' && *s != '['; s++) | |
4326 | ; | |
4327 | if (*s != '\0') | |
4328 | { | |
4329 | char brac; | |
4330 | ||
4331 | if (*s == '[') | |
4332 | brac = ']'; | |
4333 | else | |
4334 | { | |
4335 | *s = '['; | |
4336 | brac = '}'; | |
4337 | } | |
4338 | ||
4339 | for (s++; *s != '\0' && *s != brac; s++) | |
3882b010 | 4340 | *s = TOUPPER (*s); |
252b5132 RH |
4341 | |
4342 | if (*s == '\0' || s[1] != '\0') | |
4343 | as_bad (_("bad symbol suffix")); | |
4344 | ||
4345 | *s = ']'; | |
4346 | } | |
4347 | ||
4348 | return name; | |
4349 | } | |
4350 | ||
4351 | /* Set the class of a symbol based on the suffix, if any. This is | |
4352 | called whenever a new symbol is created. */ | |
4353 | ||
4354 | void | |
4355 | ppc_symbol_new_hook (sym) | |
4356 | symbolS *sym; | |
4357 | { | |
809ffe0d | 4358 | struct ppc_tc_sy *tc; |
252b5132 RH |
4359 | const char *s; |
4360 | ||
809ffe0d ILT |
4361 | tc = symbol_get_tc (sym); |
4362 | tc->next = NULL; | |
4363 | tc->output = 0; | |
4364 | tc->class = -1; | |
4365 | tc->real_name = NULL; | |
4366 | tc->subseg = 0; | |
4367 | tc->align = 0; | |
4368 | tc->size = NULL; | |
4369 | tc->within = NULL; | |
252b5132 RH |
4370 | |
4371 | if (ppc_stab_symbol) | |
4372 | return; | |
4373 | ||
4374 | s = strchr (S_GET_NAME (sym), '['); | |
4375 | if (s == (const char *) NULL) | |
4376 | { | |
4377 | /* There is no suffix. */ | |
4378 | return; | |
4379 | } | |
4380 | ||
4381 | ++s; | |
4382 | ||
4383 | switch (s[0]) | |
4384 | { | |
4385 | case 'B': | |
4386 | if (strcmp (s, "BS]") == 0) | |
809ffe0d | 4387 | tc->class = XMC_BS; |
252b5132 RH |
4388 | break; |
4389 | case 'D': | |
4390 | if (strcmp (s, "DB]") == 0) | |
809ffe0d | 4391 | tc->class = XMC_DB; |
252b5132 | 4392 | else if (strcmp (s, "DS]") == 0) |
809ffe0d | 4393 | tc->class = XMC_DS; |
252b5132 RH |
4394 | break; |
4395 | case 'G': | |
4396 | if (strcmp (s, "GL]") == 0) | |
809ffe0d | 4397 | tc->class = XMC_GL; |
252b5132 RH |
4398 | break; |
4399 | case 'P': | |
4400 | if (strcmp (s, "PR]") == 0) | |
809ffe0d | 4401 | tc->class = XMC_PR; |
252b5132 RH |
4402 | break; |
4403 | case 'R': | |
4404 | if (strcmp (s, "RO]") == 0) | |
809ffe0d | 4405 | tc->class = XMC_RO; |
252b5132 | 4406 | else if (strcmp (s, "RW]") == 0) |
809ffe0d | 4407 | tc->class = XMC_RW; |
252b5132 RH |
4408 | break; |
4409 | case 'S': | |
4410 | if (strcmp (s, "SV]") == 0) | |
809ffe0d | 4411 | tc->class = XMC_SV; |
252b5132 RH |
4412 | break; |
4413 | case 'T': | |
4414 | if (strcmp (s, "TC]") == 0) | |
809ffe0d | 4415 | tc->class = XMC_TC; |
252b5132 | 4416 | else if (strcmp (s, "TI]") == 0) |
809ffe0d | 4417 | tc->class = XMC_TI; |
252b5132 | 4418 | else if (strcmp (s, "TB]") == 0) |
809ffe0d | 4419 | tc->class = XMC_TB; |
252b5132 | 4420 | else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0) |
809ffe0d | 4421 | tc->class = XMC_TC0; |
252b5132 RH |
4422 | break; |
4423 | case 'U': | |
4424 | if (strcmp (s, "UA]") == 0) | |
809ffe0d | 4425 | tc->class = XMC_UA; |
252b5132 | 4426 | else if (strcmp (s, "UC]") == 0) |
809ffe0d | 4427 | tc->class = XMC_UC; |
252b5132 RH |
4428 | break; |
4429 | case 'X': | |
4430 | if (strcmp (s, "XO]") == 0) | |
809ffe0d | 4431 | tc->class = XMC_XO; |
252b5132 RH |
4432 | break; |
4433 | } | |
4434 | ||
809ffe0d | 4435 | if (tc->class == -1) |
252b5132 RH |
4436 | as_bad (_("Unrecognized symbol suffix")); |
4437 | } | |
4438 | ||
4439 | /* Set the class of a label based on where it is defined. This | |
4440 | handles symbols without suffixes. Also, move the symbol so that it | |
4441 | follows the csect symbol. */ | |
4442 | ||
4443 | void | |
4444 | ppc_frob_label (sym) | |
4445 | symbolS *sym; | |
4446 | { | |
4447 | if (ppc_current_csect != (symbolS *) NULL) | |
4448 | { | |
809ffe0d ILT |
4449 | if (symbol_get_tc (sym)->class == -1) |
4450 | symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class; | |
252b5132 RH |
4451 | |
4452 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
809ffe0d ILT |
4453 | symbol_append (sym, symbol_get_tc (ppc_current_csect)->within, |
4454 | &symbol_rootP, &symbol_lastP); | |
4455 | symbol_get_tc (ppc_current_csect)->within = sym; | |
252b5132 RH |
4456 | } |
4457 | } | |
4458 | ||
4459 | /* This variable is set by ppc_frob_symbol if any absolute symbols are | |
4460 | seen. It tells ppc_adjust_symtab whether it needs to look through | |
4461 | the symbols. */ | |
4462 | ||
4463 | static boolean ppc_saw_abs; | |
4464 | ||
4465 | /* Change the name of a symbol just before writing it out. Set the | |
4466 | real name if the .rename pseudo-op was used. Otherwise, remove any | |
4467 | class suffix. Return 1 if the symbol should not be included in the | |
4468 | symbol table. */ | |
4469 | ||
4470 | int | |
4471 | ppc_frob_symbol (sym) | |
4472 | symbolS *sym; | |
4473 | { | |
4474 | static symbolS *ppc_last_function; | |
4475 | static symbolS *set_end; | |
4476 | ||
4477 | /* Discard symbols that should not be included in the output symbol | |
4478 | table. */ | |
809ffe0d ILT |
4479 | if (! symbol_used_in_reloc_p (sym) |
4480 | && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0 | |
252b5132 | 4481 | || (! S_IS_EXTERNAL (sym) |
809ffe0d | 4482 | && ! symbol_get_tc (sym)->output |
252b5132 RH |
4483 | && S_GET_STORAGE_CLASS (sym) != C_FILE))) |
4484 | return 1; | |
4485 | ||
809ffe0d ILT |
4486 | if (symbol_get_tc (sym)->real_name != (char *) NULL) |
4487 | S_SET_NAME (sym, symbol_get_tc (sym)->real_name); | |
252b5132 RH |
4488 | else |
4489 | { | |
4490 | const char *name; | |
4491 | const char *s; | |
4492 | ||
4493 | name = S_GET_NAME (sym); | |
4494 | s = strchr (name, '['); | |
4495 | if (s != (char *) NULL) | |
4496 | { | |
4497 | unsigned int len; | |
4498 | char *snew; | |
4499 | ||
4500 | len = s - name; | |
4501 | snew = xmalloc (len + 1); | |
4502 | memcpy (snew, name, len); | |
4503 | snew[len] = '\0'; | |
4504 | ||
4505 | S_SET_NAME (sym, snew); | |
4506 | } | |
4507 | } | |
4508 | ||
4509 | if (set_end != (symbolS *) NULL) | |
4510 | { | |
4511 | SA_SET_SYM_ENDNDX (set_end, sym); | |
4512 | set_end = NULL; | |
4513 | } | |
4514 | ||
4515 | if (SF_GET_FUNCTION (sym)) | |
4516 | { | |
4517 | if (ppc_last_function != (symbolS *) NULL) | |
4518 | as_bad (_("two .function pseudo-ops with no intervening .ef")); | |
4519 | ppc_last_function = sym; | |
809ffe0d | 4520 | if (symbol_get_tc (sym)->size != (symbolS *) NULL) |
252b5132 | 4521 | { |
6386f3a7 | 4522 | resolve_symbol_value (symbol_get_tc (sym)->size); |
809ffe0d ILT |
4523 | SA_SET_SYM_FSIZE (sym, |
4524 | (long) S_GET_VALUE (symbol_get_tc (sym)->size)); | |
252b5132 RH |
4525 | } |
4526 | } | |
4527 | else if (S_GET_STORAGE_CLASS (sym) == C_FCN | |
4528 | && strcmp (S_GET_NAME (sym), ".ef") == 0) | |
4529 | { | |
4530 | if (ppc_last_function == (symbolS *) NULL) | |
4531 | as_bad (_(".ef with no preceding .function")); | |
4532 | else | |
4533 | { | |
4534 | set_end = ppc_last_function; | |
4535 | ppc_last_function = NULL; | |
4536 | ||
4537 | /* We don't have a C_EFCN symbol, but we need to force the | |
4538 | COFF backend to believe that it has seen one. */ | |
4539 | coff_last_function = NULL; | |
4540 | } | |
4541 | } | |
4542 | ||
4543 | if (! S_IS_EXTERNAL (sym) | |
809ffe0d | 4544 | && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0 |
252b5132 RH |
4545 | && S_GET_STORAGE_CLASS (sym) != C_FILE |
4546 | && S_GET_STORAGE_CLASS (sym) != C_FCN | |
4547 | && S_GET_STORAGE_CLASS (sym) != C_BLOCK | |
4548 | && S_GET_STORAGE_CLASS (sym) != C_BSTAT | |
4549 | && S_GET_STORAGE_CLASS (sym) != C_ESTAT | |
4550 | && S_GET_STORAGE_CLASS (sym) != C_BINCL | |
4551 | && S_GET_STORAGE_CLASS (sym) != C_EINCL | |
4552 | && S_GET_SEGMENT (sym) != ppc_coff_debug_section) | |
4553 | S_SET_STORAGE_CLASS (sym, C_HIDEXT); | |
4554 | ||
4555 | if (S_GET_STORAGE_CLASS (sym) == C_EXT | |
4556 | || S_GET_STORAGE_CLASS (sym) == C_HIDEXT) | |
4557 | { | |
4558 | int i; | |
4559 | union internal_auxent *a; | |
4560 | ||
4561 | /* Create a csect aux. */ | |
4562 | i = S_GET_NUMBER_AUXILIARY (sym); | |
4563 | S_SET_NUMBER_AUXILIARY (sym, i + 1); | |
809ffe0d ILT |
4564 | a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent; |
4565 | if (symbol_get_tc (sym)->class == XMC_TC0) | |
252b5132 RH |
4566 | { |
4567 | /* This is the TOC table. */ | |
4568 | know (strcmp (S_GET_NAME (sym), "TOC") == 0); | |
4569 | a->x_csect.x_scnlen.l = 0; | |
4570 | a->x_csect.x_smtyp = (2 << 3) | XTY_SD; | |
4571 | } | |
809ffe0d | 4572 | else if (symbol_get_tc (sym)->subseg != 0) |
252b5132 RH |
4573 | { |
4574 | /* This is a csect symbol. x_scnlen is the size of the | |
4575 | csect. */ | |
809ffe0d | 4576 | if (symbol_get_tc (sym)->next == (symbolS *) NULL) |
252b5132 RH |
4577 | a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput, |
4578 | S_GET_SEGMENT (sym)) | |
4579 | - S_GET_VALUE (sym)); | |
4580 | else | |
4581 | { | |
6386f3a7 | 4582 | resolve_symbol_value (symbol_get_tc (sym)->next); |
809ffe0d | 4583 | a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next) |
252b5132 RH |
4584 | - S_GET_VALUE (sym)); |
4585 | } | |
809ffe0d | 4586 | a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD; |
252b5132 RH |
4587 | } |
4588 | else if (S_GET_SEGMENT (sym) == bss_section) | |
4589 | { | |
4590 | /* This is a common symbol. */ | |
809ffe0d ILT |
4591 | a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset; |
4592 | a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM; | |
252b5132 | 4593 | if (S_IS_EXTERNAL (sym)) |
809ffe0d | 4594 | symbol_get_tc (sym)->class = XMC_RW; |
252b5132 | 4595 | else |
809ffe0d | 4596 | symbol_get_tc (sym)->class = XMC_BS; |
252b5132 RH |
4597 | } |
4598 | else if (S_GET_SEGMENT (sym) == absolute_section) | |
4599 | { | |
4600 | /* This is an absolute symbol. The csect will be created by | |
99a814a1 | 4601 | ppc_adjust_symtab. */ |
252b5132 RH |
4602 | ppc_saw_abs = true; |
4603 | a->x_csect.x_smtyp = XTY_LD; | |
809ffe0d ILT |
4604 | if (symbol_get_tc (sym)->class == -1) |
4605 | symbol_get_tc (sym)->class = XMC_XO; | |
252b5132 RH |
4606 | } |
4607 | else if (! S_IS_DEFINED (sym)) | |
4608 | { | |
4609 | /* This is an external symbol. */ | |
4610 | a->x_csect.x_scnlen.l = 0; | |
4611 | a->x_csect.x_smtyp = XTY_ER; | |
4612 | } | |
809ffe0d | 4613 | else if (symbol_get_tc (sym)->class == XMC_TC) |
252b5132 RH |
4614 | { |
4615 | symbolS *next; | |
4616 | ||
4617 | /* This is a TOC definition. x_scnlen is the size of the | |
4618 | TOC entry. */ | |
4619 | next = symbol_next (sym); | |
809ffe0d | 4620 | while (symbol_get_tc (next)->class == XMC_TC0) |
252b5132 RH |
4621 | next = symbol_next (next); |
4622 | if (next == (symbolS *) NULL | |
809ffe0d | 4623 | || symbol_get_tc (next)->class != XMC_TC) |
252b5132 RH |
4624 | { |
4625 | if (ppc_after_toc_frag == (fragS *) NULL) | |
4626 | a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput, | |
4627 | data_section) | |
4628 | - S_GET_VALUE (sym)); | |
4629 | else | |
4630 | a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address | |
4631 | - S_GET_VALUE (sym)); | |
4632 | } | |
4633 | else | |
4634 | { | |
6386f3a7 | 4635 | resolve_symbol_value (next); |
252b5132 RH |
4636 | a->x_csect.x_scnlen.l = (S_GET_VALUE (next) |
4637 | - S_GET_VALUE (sym)); | |
4638 | } | |
4639 | a->x_csect.x_smtyp = (2 << 3) | XTY_SD; | |
4640 | } | |
4641 | else | |
4642 | { | |
4643 | symbolS *csect; | |
4644 | ||
4645 | /* This is a normal symbol definition. x_scnlen is the | |
4646 | symbol index of the containing csect. */ | |
4647 | if (S_GET_SEGMENT (sym) == text_section) | |
4648 | csect = ppc_text_csects; | |
4649 | else if (S_GET_SEGMENT (sym) == data_section) | |
4650 | csect = ppc_data_csects; | |
4651 | else | |
4652 | abort (); | |
4653 | ||
4654 | /* Skip the initial dummy symbol. */ | |
809ffe0d | 4655 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
4656 | |
4657 | if (csect == (symbolS *) NULL) | |
4658 | { | |
4659 | as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym)); | |
4660 | a->x_csect.x_scnlen.l = 0; | |
4661 | } | |
4662 | else | |
4663 | { | |
809ffe0d | 4664 | while (symbol_get_tc (csect)->next != (symbolS *) NULL) |
252b5132 | 4665 | { |
6386f3a7 | 4666 | resolve_symbol_value (symbol_get_tc (csect)->next); |
809ffe0d ILT |
4667 | if (S_GET_VALUE (symbol_get_tc (csect)->next) |
4668 | > S_GET_VALUE (sym)) | |
252b5132 | 4669 | break; |
809ffe0d | 4670 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
4671 | } |
4672 | ||
809ffe0d ILT |
4673 | a->x_csect.x_scnlen.p = |
4674 | coffsymbol (symbol_get_bfdsym (csect))->native; | |
4675 | coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen = | |
4676 | 1; | |
252b5132 RH |
4677 | } |
4678 | a->x_csect.x_smtyp = XTY_LD; | |
4679 | } | |
81d4177b | 4680 | |
252b5132 RH |
4681 | a->x_csect.x_parmhash = 0; |
4682 | a->x_csect.x_snhash = 0; | |
809ffe0d | 4683 | if (symbol_get_tc (sym)->class == -1) |
252b5132 RH |
4684 | a->x_csect.x_smclas = XMC_PR; |
4685 | else | |
809ffe0d | 4686 | a->x_csect.x_smclas = symbol_get_tc (sym)->class; |
252b5132 RH |
4687 | a->x_csect.x_stab = 0; |
4688 | a->x_csect.x_snstab = 0; | |
4689 | ||
4690 | /* Don't let the COFF backend resort these symbols. */ | |
809ffe0d | 4691 | symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END; |
252b5132 RH |
4692 | } |
4693 | else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT) | |
4694 | { | |
4695 | /* We want the value to be the symbol index of the referenced | |
4696 | csect symbol. BFD will do that for us if we set the right | |
4697 | flags. */ | |
4698 | S_SET_VALUE (sym, | |
809ffe0d ILT |
4699 | ((valueT) |
4700 | coffsymbol (symbol_get_bfdsym | |
4701 | (symbol_get_tc (sym)->within))->native)); | |
4702 | coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1; | |
252b5132 RH |
4703 | } |
4704 | else if (S_GET_STORAGE_CLASS (sym) == C_STSYM) | |
4705 | { | |
4706 | symbolS *block; | |
4707 | symbolS *csect; | |
4708 | ||
4709 | /* The value is the offset from the enclosing csect. */ | |
809ffe0d ILT |
4710 | block = symbol_get_tc (sym)->within; |
4711 | csect = symbol_get_tc (block)->within; | |
6386f3a7 | 4712 | resolve_symbol_value (csect); |
252b5132 RH |
4713 | S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect)); |
4714 | } | |
4715 | else if (S_GET_STORAGE_CLASS (sym) == C_BINCL | |
4716 | || S_GET_STORAGE_CLASS (sym) == C_EINCL) | |
4717 | { | |
4718 | /* We want the value to be a file offset into the line numbers. | |
99a814a1 AM |
4719 | BFD will do that for us if we set the right flags. We have |
4720 | already set the value correctly. */ | |
809ffe0d | 4721 | coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1; |
252b5132 RH |
4722 | } |
4723 | ||
4724 | return 0; | |
4725 | } | |
4726 | ||
4727 | /* Adjust the symbol table. This creates csect symbols for all | |
4728 | absolute symbols. */ | |
4729 | ||
4730 | void | |
4731 | ppc_adjust_symtab () | |
4732 | { | |
4733 | symbolS *sym; | |
4734 | ||
4735 | if (! ppc_saw_abs) | |
4736 | return; | |
4737 | ||
4738 | for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym)) | |
4739 | { | |
4740 | symbolS *csect; | |
4741 | int i; | |
4742 | union internal_auxent *a; | |
4743 | ||
4744 | if (S_GET_SEGMENT (sym) != absolute_section) | |
4745 | continue; | |
4746 | ||
4747 | csect = symbol_create (".abs[XO]", absolute_section, | |
4748 | S_GET_VALUE (sym), &zero_address_frag); | |
809ffe0d | 4749 | symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym); |
252b5132 RH |
4750 | S_SET_STORAGE_CLASS (csect, C_HIDEXT); |
4751 | i = S_GET_NUMBER_AUXILIARY (csect); | |
4752 | S_SET_NUMBER_AUXILIARY (csect, i + 1); | |
809ffe0d | 4753 | a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent; |
252b5132 RH |
4754 | a->x_csect.x_scnlen.l = 0; |
4755 | a->x_csect.x_smtyp = XTY_SD; | |
4756 | a->x_csect.x_parmhash = 0; | |
4757 | a->x_csect.x_snhash = 0; | |
4758 | a->x_csect.x_smclas = XMC_XO; | |
4759 | a->x_csect.x_stab = 0; | |
4760 | a->x_csect.x_snstab = 0; | |
4761 | ||
4762 | symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP); | |
4763 | ||
4764 | i = S_GET_NUMBER_AUXILIARY (sym); | |
809ffe0d ILT |
4765 | a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent; |
4766 | a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native; | |
4767 | coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1; | |
252b5132 RH |
4768 | } |
4769 | ||
4770 | ppc_saw_abs = false; | |
4771 | } | |
4772 | ||
4773 | /* Set the VMA for a section. This is called on all the sections in | |
4774 | turn. */ | |
4775 | ||
4776 | void | |
4777 | ppc_frob_section (sec) | |
4778 | asection *sec; | |
4779 | { | |
4780 | static bfd_size_type vma = 0; | |
4781 | ||
4782 | bfd_set_section_vma (stdoutput, sec, vma); | |
4783 | vma += bfd_section_size (stdoutput, sec); | |
4784 | } | |
4785 | ||
4786 | #endif /* OBJ_XCOFF */ | |
4787 | \f | |
4788 | /* Turn a string in input_line_pointer into a floating point constant | |
bc0d738a NC |
4789 | of type TYPE, and store the appropriate bytes in *LITP. The number |
4790 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
252b5132 RH |
4791 | returned, or NULL on OK. */ |
4792 | ||
4793 | char * | |
4794 | md_atof (type, litp, sizep) | |
4795 | int type; | |
4796 | char *litp; | |
4797 | int *sizep; | |
4798 | { | |
4799 | int prec; | |
4800 | LITTLENUM_TYPE words[4]; | |
4801 | char *t; | |
4802 | int i; | |
4803 | ||
4804 | switch (type) | |
4805 | { | |
4806 | case 'f': | |
4807 | prec = 2; | |
4808 | break; | |
4809 | ||
4810 | case 'd': | |
4811 | prec = 4; | |
4812 | break; | |
4813 | ||
4814 | default: | |
4815 | *sizep = 0; | |
4816 | return _("bad call to md_atof"); | |
4817 | } | |
4818 | ||
4819 | t = atof_ieee (input_line_pointer, type, words); | |
4820 | if (t) | |
4821 | input_line_pointer = t; | |
4822 | ||
4823 | *sizep = prec * 2; | |
4824 | ||
4825 | if (target_big_endian) | |
4826 | { | |
4827 | for (i = 0; i < prec; i++) | |
4828 | { | |
4829 | md_number_to_chars (litp, (valueT) words[i], 2); | |
4830 | litp += 2; | |
4831 | } | |
4832 | } | |
4833 | else | |
4834 | { | |
4835 | for (i = prec - 1; i >= 0; i--) | |
4836 | { | |
4837 | md_number_to_chars (litp, (valueT) words[i], 2); | |
4838 | litp += 2; | |
4839 | } | |
4840 | } | |
81d4177b | 4841 | |
252b5132 RH |
4842 | return NULL; |
4843 | } | |
4844 | ||
4845 | /* Write a value out to the object file, using the appropriate | |
4846 | endianness. */ | |
4847 | ||
4848 | void | |
4849 | md_number_to_chars (buf, val, n) | |
4850 | char *buf; | |
4851 | valueT val; | |
4852 | int n; | |
4853 | { | |
4854 | if (target_big_endian) | |
4855 | number_to_chars_bigendian (buf, val, n); | |
4856 | else | |
4857 | number_to_chars_littleendian (buf, val, n); | |
4858 | } | |
4859 | ||
4860 | /* Align a section (I don't know why this is machine dependent). */ | |
4861 | ||
4862 | valueT | |
4863 | md_section_align (seg, addr) | |
4864 | asection *seg; | |
4865 | valueT addr; | |
4866 | { | |
4867 | int align = bfd_get_section_alignment (stdoutput, seg); | |
4868 | ||
4869 | return ((addr + (1 << align) - 1) & (-1 << align)); | |
4870 | } | |
4871 | ||
4872 | /* We don't have any form of relaxing. */ | |
4873 | ||
4874 | int | |
4875 | md_estimate_size_before_relax (fragp, seg) | |
92161534 ILT |
4876 | fragS *fragp ATTRIBUTE_UNUSED; |
4877 | asection *seg ATTRIBUTE_UNUSED; | |
252b5132 RH |
4878 | { |
4879 | abort (); | |
4880 | return 0; | |
4881 | } | |
4882 | ||
4883 | /* Convert a machine dependent frag. We never generate these. */ | |
4884 | ||
4885 | void | |
4886 | md_convert_frag (abfd, sec, fragp) | |
92161534 ILT |
4887 | bfd *abfd ATTRIBUTE_UNUSED; |
4888 | asection *sec ATTRIBUTE_UNUSED; | |
4889 | fragS *fragp ATTRIBUTE_UNUSED; | |
252b5132 RH |
4890 | { |
4891 | abort (); | |
4892 | } | |
4893 | ||
4894 | /* We have no need to default values of symbols. */ | |
4895 | ||
252b5132 RH |
4896 | symbolS * |
4897 | md_undefined_symbol (name) | |
92161534 | 4898 | char *name ATTRIBUTE_UNUSED; |
252b5132 RH |
4899 | { |
4900 | return 0; | |
4901 | } | |
4902 | \f | |
4903 | /* Functions concerning relocs. */ | |
4904 | ||
4905 | /* The location from which a PC relative jump should be calculated, | |
4906 | given a PC relative reloc. */ | |
4907 | ||
4908 | long | |
4909 | md_pcrel_from_section (fixp, sec) | |
4910 | fixS *fixp; | |
92161534 | 4911 | segT sec ATTRIBUTE_UNUSED; |
252b5132 RH |
4912 | { |
4913 | return fixp->fx_frag->fr_address + fixp->fx_where; | |
4914 | } | |
4915 | ||
4916 | #ifdef OBJ_XCOFF | |
4917 | ||
4918 | /* This is called to see whether a fixup should be adjusted to use a | |
4919 | section symbol. We take the opportunity to change a fixup against | |
4920 | a symbol in the TOC subsegment into a reloc against the | |
4921 | corresponding .tc symbol. */ | |
4922 | ||
4923 | int | |
4924 | ppc_fix_adjustable (fix) | |
4925 | fixS *fix; | |
4926 | { | |
4927 | valueT val; | |
4928 | ||
6386f3a7 | 4929 | resolve_symbol_value (fix->fx_addsy); |
252b5132 RH |
4930 | val = S_GET_VALUE (fix->fx_addsy); |
4931 | if (ppc_toc_csect != (symbolS *) NULL | |
4932 | && fix->fx_addsy != (symbolS *) NULL | |
4933 | && fix->fx_addsy != ppc_toc_csect | |
4934 | && S_GET_SEGMENT (fix->fx_addsy) == data_section | |
4935 | && val >= ppc_toc_frag->fr_address | |
4936 | && (ppc_after_toc_frag == (fragS *) NULL | |
4937 | || val < ppc_after_toc_frag->fr_address)) | |
4938 | { | |
4939 | symbolS *sy; | |
4940 | ||
4941 | for (sy = symbol_next (ppc_toc_csect); | |
4942 | sy != (symbolS *) NULL; | |
4943 | sy = symbol_next (sy)) | |
4944 | { | |
809ffe0d | 4945 | if (symbol_get_tc (sy)->class == XMC_TC0) |
252b5132 | 4946 | continue; |
809ffe0d | 4947 | if (symbol_get_tc (sy)->class != XMC_TC) |
252b5132 | 4948 | break; |
6386f3a7 | 4949 | resolve_symbol_value (sy); |
252b5132 RH |
4950 | if (val == S_GET_VALUE (sy)) |
4951 | { | |
4952 | fix->fx_addsy = sy; | |
4953 | fix->fx_addnumber = val - ppc_toc_frag->fr_address; | |
4954 | return 0; | |
4955 | } | |
4956 | } | |
4957 | ||
4958 | as_bad_where (fix->fx_file, fix->fx_line, | |
4959 | _("symbol in .toc does not match any .tc")); | |
4960 | } | |
4961 | ||
4962 | /* Possibly adjust the reloc to be against the csect. */ | |
4963 | if (fix->fx_addsy != (symbolS *) NULL | |
809ffe0d ILT |
4964 | && symbol_get_tc (fix->fx_addsy)->subseg == 0 |
4965 | && symbol_get_tc (fix->fx_addsy)->class != XMC_TC0 | |
4966 | && symbol_get_tc (fix->fx_addsy)->class != XMC_TC | |
252b5132 RH |
4967 | && S_GET_SEGMENT (fix->fx_addsy) != bss_section |
4968 | /* Don't adjust if this is a reloc in the toc section. */ | |
4969 | && (S_GET_SEGMENT (fix->fx_addsy) != data_section | |
4970 | || ppc_toc_csect == NULL | |
4971 | || val < ppc_toc_frag->fr_address | |
4972 | || (ppc_after_toc_frag != NULL | |
4973 | && val >= ppc_after_toc_frag->fr_address))) | |
4974 | { | |
4975 | symbolS *csect; | |
4976 | ||
4977 | if (S_GET_SEGMENT (fix->fx_addsy) == text_section) | |
4978 | csect = ppc_text_csects; | |
4979 | else if (S_GET_SEGMENT (fix->fx_addsy) == data_section) | |
4980 | csect = ppc_data_csects; | |
4981 | else | |
4982 | abort (); | |
4983 | ||
4984 | /* Skip the initial dummy symbol. */ | |
809ffe0d | 4985 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
4986 | |
4987 | if (csect != (symbolS *) NULL) | |
4988 | { | |
809ffe0d ILT |
4989 | while (symbol_get_tc (csect)->next != (symbolS *) NULL |
4990 | && (symbol_get_frag (symbol_get_tc (csect)->next)->fr_address | |
2c1c4c62 | 4991 | <= val)) |
252b5132 RH |
4992 | { |
4993 | /* If the csect address equals the symbol value, then we | |
99a814a1 AM |
4994 | have to look through the full symbol table to see |
4995 | whether this is the csect we want. Note that we will | |
4996 | only get here if the csect has zero length. */ | |
2c1c4c62 | 4997 | if ((symbol_get_frag (csect)->fr_address == val) |
252b5132 RH |
4998 | && S_GET_VALUE (csect) == S_GET_VALUE (fix->fx_addsy)) |
4999 | { | |
5000 | symbolS *scan; | |
5001 | ||
809ffe0d | 5002 | for (scan = symbol_next (csect); |
252b5132 | 5003 | scan != NULL; |
809ffe0d | 5004 | scan = symbol_next (scan)) |
252b5132 | 5005 | { |
809ffe0d | 5006 | if (symbol_get_tc (scan)->subseg != 0) |
252b5132 RH |
5007 | break; |
5008 | if (scan == fix->fx_addsy) | |
5009 | break; | |
5010 | } | |
5011 | ||
5012 | /* If we found the symbol before the next csect | |
99a814a1 | 5013 | symbol, then this is the csect we want. */ |
252b5132 RH |
5014 | if (scan == fix->fx_addsy) |
5015 | break; | |
5016 | } | |
5017 | ||
809ffe0d | 5018 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
5019 | } |
5020 | ||
5021 | fix->fx_offset += (S_GET_VALUE (fix->fx_addsy) | |
809ffe0d | 5022 | - symbol_get_frag (csect)->fr_address); |
252b5132 RH |
5023 | fix->fx_addsy = csect; |
5024 | } | |
5025 | } | |
5026 | ||
5027 | /* Adjust a reloc against a .lcomm symbol to be against the base | |
5028 | .lcomm. */ | |
5029 | if (fix->fx_addsy != (symbolS *) NULL | |
5030 | && S_GET_SEGMENT (fix->fx_addsy) == bss_section | |
5031 | && ! S_IS_EXTERNAL (fix->fx_addsy)) | |
5032 | { | |
6386f3a7 | 5033 | resolve_symbol_value (symbol_get_frag (fix->fx_addsy)->fr_symbol); |
809ffe0d ILT |
5034 | fix->fx_offset += |
5035 | (S_GET_VALUE (fix->fx_addsy) | |
5036 | - S_GET_VALUE (symbol_get_frag (fix->fx_addsy)->fr_symbol)); | |
5037 | fix->fx_addsy = symbol_get_frag (fix->fx_addsy)->fr_symbol; | |
252b5132 RH |
5038 | } |
5039 | ||
5040 | return 0; | |
5041 | } | |
5042 | ||
5043 | /* A reloc from one csect to another must be kept. The assembler | |
5044 | will, of course, keep relocs between sections, and it will keep | |
5045 | absolute relocs, but we need to force it to keep PC relative relocs | |
5046 | between two csects in the same section. */ | |
5047 | ||
5048 | int | |
5049 | ppc_force_relocation (fix) | |
5050 | fixS *fix; | |
5051 | { | |
5052 | /* At this point fix->fx_addsy should already have been converted to | |
5053 | a csect symbol. If the csect does not include the fragment, then | |
5054 | we need to force the relocation. */ | |
5055 | if (fix->fx_pcrel | |
5056 | && fix->fx_addsy != NULL | |
809ffe0d ILT |
5057 | && symbol_get_tc (fix->fx_addsy)->subseg != 0 |
5058 | && ((symbol_get_frag (fix->fx_addsy)->fr_address | |
5059 | > fix->fx_frag->fr_address) | |
5060 | || (symbol_get_tc (fix->fx_addsy)->next != NULL | |
5061 | && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address | |
252b5132 RH |
5062 | <= fix->fx_frag->fr_address)))) |
5063 | return 1; | |
5064 | ||
5065 | return 0; | |
5066 | } | |
5067 | ||
5068 | #endif /* OBJ_XCOFF */ | |
5069 | ||
0baf16f2 AM |
5070 | #ifdef OBJ_ELF |
5071 | int | |
5072 | ppc_fix_adjustable (fix) | |
5073 | fixS *fix; | |
252b5132 | 5074 | { |
0baf16f2 AM |
5075 | return (fix->fx_r_type != BFD_RELOC_16_GOTOFF |
5076 | && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF | |
5077 | && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF | |
5078 | && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF | |
5079 | && fix->fx_r_type != BFD_RELOC_GPREL16 | |
5080 | && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT | |
5081 | && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY | |
5082 | && ! S_IS_EXTERNAL (fix->fx_addsy) | |
5083 | && ! S_IS_WEAK (fix->fx_addsy) | |
5084 | && (fix->fx_pcrel | |
5085 | || (fix->fx_subsy != NULL | |
5086 | && (S_GET_SEGMENT (fix->fx_subsy) | |
5087 | == S_GET_SEGMENT (fix->fx_addsy))) | |
5088 | || S_IS_LOCAL (fix->fx_addsy))); | |
252b5132 | 5089 | } |
0baf16f2 | 5090 | #endif |
252b5132 RH |
5091 | |
5092 | /* Apply a fixup to the object code. This is called for all the | |
5093 | fixups we generated by the call to fix_new_exp, above. In the call | |
5094 | above we used a reloc code which was the largest legal reloc code | |
5095 | plus the operand index. Here we undo that to recover the operand | |
5096 | index. At this point all symbol values should be fully resolved, | |
5097 | and we attempt to completely resolve the reloc. If we can not do | |
5098 | that, we determine the correct reloc code and put it back in the | |
5099 | fixup. */ | |
5100 | ||
94f592af NC |
5101 | void |
5102 | md_apply_fix3 (fixP, valP, seg) | |
5103 | fixS *fixP; | |
5104 | valueT * valP; | |
0baf16f2 | 5105 | segT seg ATTRIBUTE_UNUSED; |
252b5132 | 5106 | { |
94f592af | 5107 | valueT value = * valP; |
252b5132 RH |
5108 | |
5109 | #ifdef OBJ_ELF | |
94f592af | 5110 | if (fixP->fx_addsy != NULL) |
252b5132 RH |
5111 | { |
5112 | /* `*valuep' may contain the value of the symbol on which the reloc | |
5113 | will be based; we have to remove it. */ | |
94f592af NC |
5114 | if (symbol_used_in_reloc_p (fixP->fx_addsy) |
5115 | && S_GET_SEGMENT (fixP->fx_addsy) != absolute_section | |
5116 | && S_GET_SEGMENT (fixP->fx_addsy) != undefined_section | |
5117 | && ! bfd_is_com_section (S_GET_SEGMENT (fixP->fx_addsy))) | |
5118 | value -= S_GET_VALUE (fixP->fx_addsy); | |
252b5132 RH |
5119 | |
5120 | /* FIXME: Why '+'? Better yet, what exactly is '*valuep' | |
5121 | supposed to be? I think this is related to various similar | |
5122 | FIXMEs in tc-i386.c and tc-sparc.c. */ | |
94f592af NC |
5123 | if (fixP->fx_pcrel) |
5124 | value += fixP->fx_frag->fr_address + fixP->fx_where; | |
252b5132 RH |
5125 | } |
5126 | else | |
94f592af | 5127 | fixP->fx_done = 1; |
252b5132 RH |
5128 | #else |
5129 | /* FIXME FIXME FIXME: The value we are passed in *valuep includes | |
5130 | the symbol values. Since we are using BFD_ASSEMBLER, if we are | |
5131 | doing this relocation the code in write.c is going to call | |
5132 | bfd_install_relocation, which is also going to use the symbol | |
5133 | value. That means that if the reloc is fully resolved we want to | |
5134 | use *valuep since bfd_install_relocation is not being used. | |
5135 | However, if the reloc is not fully resolved we do not want to use | |
5136 | *valuep, and must use fx_offset instead. However, if the reloc | |
5137 | is PC relative, we do want to use *valuep since it includes the | |
5138 | result of md_pcrel_from. This is confusing. */ | |
94f592af NC |
5139 | if (fixP->fx_addsy == (symbolS *) NULL) |
5140 | fixP->fx_done = 1; | |
5141 | ||
5142 | else if (fixP->fx_pcrel) | |
5143 | ; | |
5144 | ||
252b5132 RH |
5145 | else |
5146 | { | |
94f592af NC |
5147 | value = fixP->fx_offset; |
5148 | if (fixP->fx_subsy != (symbolS *) NULL) | |
252b5132 | 5149 | { |
94f592af NC |
5150 | if (S_GET_SEGMENT (fixP->fx_subsy) == absolute_section) |
5151 | value -= S_GET_VALUE (fixP->fx_subsy); | |
252b5132 RH |
5152 | else |
5153 | { | |
5154 | /* We can't actually support subtracting a symbol. */ | |
94f592af | 5155 | as_bad_where (fixP->fx_file, fixP->fx_line, |
252b5132 RH |
5156 | _("expression too complex")); |
5157 | } | |
5158 | } | |
5159 | } | |
5160 | #endif | |
5161 | ||
94f592af | 5162 | if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED) |
252b5132 RH |
5163 | { |
5164 | int opindex; | |
5165 | const struct powerpc_operand *operand; | |
5166 | char *where; | |
5167 | unsigned long insn; | |
5168 | ||
94f592af | 5169 | opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED; |
252b5132 RH |
5170 | |
5171 | operand = &powerpc_operands[opindex]; | |
5172 | ||
5173 | #ifdef OBJ_XCOFF | |
0baf16f2 AM |
5174 | /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol |
5175 | does not generate a reloc. It uses the offset of `sym' within its | |
5176 | csect. Other usages, such as `.long sym', generate relocs. This | |
5177 | is the documented behaviour of non-TOC symbols. */ | |
252b5132 RH |
5178 | if ((operand->flags & PPC_OPERAND_PARENS) != 0 |
5179 | && operand->bits == 16 | |
5180 | && operand->shift == 0 | |
9b90b531 | 5181 | && (operand->insert == NULL || ppc_xcoff64) |
94f592af NC |
5182 | && fixP->fx_addsy != NULL |
5183 | && symbol_get_tc (fixP->fx_addsy)->subseg != 0 | |
5184 | && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC | |
5185 | && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC0 | |
5186 | && S_GET_SEGMENT (fixP->fx_addsy) != bss_section) | |
252b5132 | 5187 | { |
94f592af NC |
5188 | value = fixP->fx_offset; |
5189 | fixP->fx_done = 1; | |
252b5132 RH |
5190 | } |
5191 | #endif | |
5192 | ||
5193 | /* Fetch the instruction, insert the fully resolved operand | |
5194 | value, and stuff the instruction back again. */ | |
94f592af | 5195 | where = fixP->fx_frag->fr_literal + fixP->fx_where; |
252b5132 RH |
5196 | if (target_big_endian) |
5197 | insn = bfd_getb32 ((unsigned char *) where); | |
5198 | else | |
5199 | insn = bfd_getl32 ((unsigned char *) where); | |
5200 | insn = ppc_insert_operand (insn, operand, (offsetT) value, | |
94f592af | 5201 | fixP->fx_file, fixP->fx_line); |
252b5132 RH |
5202 | if (target_big_endian) |
5203 | bfd_putb32 ((bfd_vma) insn, (unsigned char *) where); | |
5204 | else | |
5205 | bfd_putl32 ((bfd_vma) insn, (unsigned char *) where); | |
5206 | ||
94f592af NC |
5207 | if (fixP->fx_done) |
5208 | /* Nothing else to do here. */ | |
5209 | return; | |
252b5132 | 5210 | |
94f592af | 5211 | assert (fixP->fx_addsy != NULL); |
0baf16f2 | 5212 | |
252b5132 RH |
5213 | /* Determine a BFD reloc value based on the operand information. |
5214 | We are only prepared to turn a few of the operands into | |
0baf16f2 | 5215 | relocs. */ |
11b37b7b AM |
5216 | if ((operand->flags & PPC_OPERAND_RELATIVE) != 0 |
5217 | && operand->bits == 26 | |
5218 | && operand->shift == 0) | |
94f592af | 5219 | fixP->fx_r_type = BFD_RELOC_PPC_B26; |
11b37b7b AM |
5220 | else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0 |
5221 | && operand->bits == 16 | |
5222 | && operand->shift == 0) | |
94f592af | 5223 | fixP->fx_r_type = BFD_RELOC_PPC_B16; |
11b37b7b AM |
5224 | else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0 |
5225 | && operand->bits == 26 | |
5226 | && operand->shift == 0) | |
94f592af | 5227 | fixP->fx_r_type = BFD_RELOC_PPC_BA26; |
11b37b7b AM |
5228 | else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0 |
5229 | && operand->bits == 16 | |
5230 | && operand->shift == 0) | |
94f592af | 5231 | fixP->fx_r_type = BFD_RELOC_PPC_BA16; |
0baf16f2 | 5232 | #if defined (OBJ_XCOFF) || defined (OBJ_ELF) |
11b37b7b AM |
5233 | else if ((operand->flags & PPC_OPERAND_PARENS) != 0 |
5234 | && operand->bits == 16 | |
5235 | && operand->shift == 0 | |
94f592af | 5236 | && ppc_is_toc_sym (fixP->fx_addsy)) |
11b37b7b | 5237 | { |
94f592af | 5238 | fixP->fx_r_type = BFD_RELOC_PPC_TOC16; |
0baf16f2 AM |
5239 | #ifdef OBJ_ELF |
5240 | if (BFD_DEFAULT_TARGET_SIZE == 64 | |
9c7977b3 | 5241 | && ppc_size == PPC_OPCODE_64 |
0baf16f2 | 5242 | && (operand->flags & PPC_OPERAND_DS) != 0) |
94f592af | 5243 | fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS; |
0baf16f2 | 5244 | #endif |
94f592af | 5245 | fixP->fx_size = 2; |
11b37b7b | 5246 | if (target_big_endian) |
94f592af | 5247 | fixP->fx_where += 2; |
11b37b7b | 5248 | } |
0baf16f2 | 5249 | #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */ |
11b37b7b | 5250 | else |
252b5132 RH |
5251 | { |
5252 | char *sfile; | |
5253 | unsigned int sline; | |
5254 | ||
5255 | /* Use expr_symbol_where to see if this is an expression | |
0baf16f2 | 5256 | symbol. */ |
94f592af NC |
5257 | if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline)) |
5258 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
252b5132 RH |
5259 | _("unresolved expression that must be resolved")); |
5260 | else | |
94f592af | 5261 | as_bad_where (fixP->fx_file, fixP->fx_line, |
0baf16f2 | 5262 | _("unsupported relocation against %s"), |
94f592af NC |
5263 | S_GET_NAME (fixP->fx_addsy)); |
5264 | fixP->fx_done = 1; | |
5265 | return; | |
252b5132 RH |
5266 | } |
5267 | } | |
5268 | else | |
5269 | { | |
5270 | #ifdef OBJ_ELF | |
94f592af | 5271 | ppc_elf_validate_fix (fixP, seg); |
252b5132 | 5272 | #endif |
94f592af | 5273 | switch (fixP->fx_r_type) |
252b5132 | 5274 | { |
252b5132 | 5275 | case BFD_RELOC_CTOR: |
9c7977b3 AM |
5276 | if (BFD_DEFAULT_TARGET_SIZE == 64 && ppc_size == PPC_OPCODE_64) |
5277 | goto ctor64; | |
5278 | /* fall through */ | |
5279 | ||
0baf16f2 | 5280 | case BFD_RELOC_32: |
94f592af NC |
5281 | if (fixP->fx_pcrel) |
5282 | fixP->fx_r_type = BFD_RELOC_32_PCREL; | |
99a814a1 | 5283 | /* fall through */ |
252b5132 RH |
5284 | |
5285 | case BFD_RELOC_RVA: | |
5286 | case BFD_RELOC_32_PCREL: | |
252b5132 | 5287 | case BFD_RELOC_PPC_EMB_NADDR32: |
94f592af | 5288 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
252b5132 RH |
5289 | value, 4); |
5290 | break; | |
5291 | ||
7f6d05e8 | 5292 | case BFD_RELOC_64: |
9c7977b3 | 5293 | ctor64: |
94f592af NC |
5294 | if (fixP->fx_pcrel) |
5295 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
99a814a1 | 5296 | /* fall through */ |
0baf16f2 | 5297 | |
7f6d05e8 | 5298 | case BFD_RELOC_64_PCREL: |
94f592af | 5299 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
7f6d05e8 | 5300 | value, 8); |
81d4177b | 5301 | break; |
0baf16f2 | 5302 | |
252b5132 RH |
5303 | case BFD_RELOC_LO16: |
5304 | case BFD_RELOC_16: | |
5305 | case BFD_RELOC_GPREL16: | |
5306 | case BFD_RELOC_16_GOT_PCREL: | |
5307 | case BFD_RELOC_16_GOTOFF: | |
5308 | case BFD_RELOC_LO16_GOTOFF: | |
5309 | case BFD_RELOC_HI16_GOTOFF: | |
5310 | case BFD_RELOC_HI16_S_GOTOFF: | |
1cfc59d5 | 5311 | case BFD_RELOC_16_BASEREL: |
252b5132 RH |
5312 | case BFD_RELOC_LO16_BASEREL: |
5313 | case BFD_RELOC_HI16_BASEREL: | |
5314 | case BFD_RELOC_HI16_S_BASEREL: | |
5315 | case BFD_RELOC_PPC_EMB_NADDR16: | |
5316 | case BFD_RELOC_PPC_EMB_NADDR16_LO: | |
5317 | case BFD_RELOC_PPC_EMB_NADDR16_HI: | |
5318 | case BFD_RELOC_PPC_EMB_NADDR16_HA: | |
5319 | case BFD_RELOC_PPC_EMB_SDAI16: | |
5320 | case BFD_RELOC_PPC_EMB_SDA2REL: | |
5321 | case BFD_RELOC_PPC_EMB_SDA2I16: | |
5322 | case BFD_RELOC_PPC_EMB_RELSEC16: | |
5323 | case BFD_RELOC_PPC_EMB_RELST_LO: | |
5324 | case BFD_RELOC_PPC_EMB_RELST_HI: | |
5325 | case BFD_RELOC_PPC_EMB_RELST_HA: | |
5326 | case BFD_RELOC_PPC_EMB_RELSDA: | |
5327 | case BFD_RELOC_PPC_TOC16: | |
0baf16f2 AM |
5328 | #ifdef OBJ_ELF |
5329 | #if BFD_DEFAULT_TARGET_SIZE == 64 | |
5330 | case BFD_RELOC_PPC64_TOC16_LO: | |
5331 | case BFD_RELOC_PPC64_TOC16_HI: | |
5332 | case BFD_RELOC_PPC64_TOC16_HA: | |
5333 | #endif | |
5334 | #endif | |
94f592af | 5335 | if (fixP->fx_pcrel) |
252b5132 | 5336 | { |
94f592af NC |
5337 | if (fixP->fx_addsy != NULL) |
5338 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
252b5132 | 5339 | _("cannot emit PC relative %s relocation against %s"), |
94f592af NC |
5340 | bfd_get_reloc_code_name (fixP->fx_r_type), |
5341 | S_GET_NAME (fixP->fx_addsy)); | |
252b5132 | 5342 | else |
94f592af | 5343 | as_bad_where (fixP->fx_file, fixP->fx_line, |
252b5132 | 5344 | _("cannot emit PC relative %s relocation"), |
94f592af | 5345 | bfd_get_reloc_code_name (fixP->fx_r_type)); |
252b5132 RH |
5346 | } |
5347 | ||
94f592af | 5348 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
252b5132 RH |
5349 | value, 2); |
5350 | break; | |
5351 | ||
5352 | /* This case happens when you write, for example, | |
5353 | lis %r3,(L1-L2)@ha | |
5354 | where L1 and L2 are defined later. */ | |
5355 | case BFD_RELOC_HI16: | |
94f592af | 5356 | if (fixP->fx_pcrel) |
252b5132 | 5357 | abort (); |
94f592af | 5358 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 | 5359 | PPC_HI (value), 2); |
252b5132 | 5360 | break; |
0baf16f2 | 5361 | |
252b5132 | 5362 | case BFD_RELOC_HI16_S: |
94f592af | 5363 | if (fixP->fx_pcrel) |
252b5132 | 5364 | abort (); |
94f592af | 5365 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5366 | PPC_HA (value), 2); |
5367 | break; | |
5368 | ||
5369 | #ifdef OBJ_ELF | |
5370 | #if BFD_DEFAULT_TARGET_SIZE == 64 | |
5371 | case BFD_RELOC_PPC64_HIGHER: | |
94f592af | 5372 | if (fixP->fx_pcrel) |
0baf16f2 | 5373 | abort (); |
94f592af | 5374 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 | 5375 | PPC_HIGHER (value), 2); |
252b5132 RH |
5376 | break; |
5377 | ||
0baf16f2 | 5378 | case BFD_RELOC_PPC64_HIGHER_S: |
94f592af | 5379 | if (fixP->fx_pcrel) |
0baf16f2 | 5380 | abort (); |
94f592af | 5381 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5382 | PPC_HIGHERA (value), 2); |
5383 | break; | |
5384 | ||
5385 | case BFD_RELOC_PPC64_HIGHEST: | |
94f592af | 5386 | if (fixP->fx_pcrel) |
0baf16f2 | 5387 | abort (); |
94f592af | 5388 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5389 | PPC_HIGHEST (value), 2); |
5390 | break; | |
5391 | ||
5392 | case BFD_RELOC_PPC64_HIGHEST_S: | |
94f592af | 5393 | if (fixP->fx_pcrel) |
0baf16f2 | 5394 | abort (); |
94f592af | 5395 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5396 | PPC_HIGHESTA (value), 2); |
5397 | break; | |
5398 | ||
5399 | case BFD_RELOC_PPC64_ADDR16_DS: | |
5400 | case BFD_RELOC_PPC64_ADDR16_LO_DS: | |
5401 | case BFD_RELOC_PPC64_GOT16_DS: | |
5402 | case BFD_RELOC_PPC64_GOT16_LO_DS: | |
5403 | case BFD_RELOC_PPC64_PLT16_LO_DS: | |
5404 | case BFD_RELOC_PPC64_SECTOFF_DS: | |
5405 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: | |
5406 | case BFD_RELOC_PPC64_TOC16_DS: | |
5407 | case BFD_RELOC_PPC64_TOC16_LO_DS: | |
5408 | case BFD_RELOC_PPC64_PLTGOT16_DS: | |
5409 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: | |
94f592af | 5410 | if (fixP->fx_pcrel) |
0baf16f2 AM |
5411 | abort (); |
5412 | { | |
94f592af | 5413 | unsigned char *where = fixP->fx_frag->fr_literal + fixP->fx_where; |
0baf16f2 AM |
5414 | unsigned long val; |
5415 | ||
5416 | if (target_big_endian) | |
5417 | val = bfd_getb16 (where); | |
5418 | else | |
5419 | val = bfd_getl16 (where); | |
5420 | val |= (value & 0xfffc); | |
5421 | if (target_big_endian) | |
5422 | bfd_putb16 ((bfd_vma) val, where); | |
5423 | else | |
5424 | bfd_putl16 ((bfd_vma) val, where); | |
5425 | } | |
5426 | break; | |
5427 | #endif | |
5428 | #endif | |
252b5132 | 5429 | /* Because SDA21 modifies the register field, the size is set to 4 |
99a814a1 | 5430 | bytes, rather than 2, so offset it here appropriately. */ |
252b5132 | 5431 | case BFD_RELOC_PPC_EMB_SDA21: |
94f592af | 5432 | if (fixP->fx_pcrel) |
252b5132 RH |
5433 | abort (); |
5434 | ||
94f592af | 5435 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where |
252b5132 RH |
5436 | + ((target_big_endian) ? 2 : 0), |
5437 | value, 2); | |
5438 | break; | |
5439 | ||
5440 | case BFD_RELOC_8: | |
94f592af | 5441 | if (fixP->fx_pcrel) |
252b5132 RH |
5442 | abort (); |
5443 | ||
94f592af | 5444 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
252b5132 RH |
5445 | value, 1); |
5446 | break; | |
5447 | ||
5448 | case BFD_RELOC_24_PLT_PCREL: | |
5449 | case BFD_RELOC_PPC_LOCAL24PC: | |
94f592af | 5450 | if (!fixP->fx_pcrel && !fixP->fx_done) |
252b5132 RH |
5451 | abort (); |
5452 | ||
94f592af | 5453 | if (fixP->fx_done) |
99a814a1 AM |
5454 | { |
5455 | char *where; | |
5456 | unsigned long insn; | |
5457 | ||
5458 | /* Fetch the instruction, insert the fully resolved operand | |
5459 | value, and stuff the instruction back again. */ | |
94f592af | 5460 | where = fixP->fx_frag->fr_literal + fixP->fx_where; |
99a814a1 AM |
5461 | if (target_big_endian) |
5462 | insn = bfd_getb32 ((unsigned char *) where); | |
5463 | else | |
5464 | insn = bfd_getl32 ((unsigned char *) where); | |
5465 | if ((value & 3) != 0) | |
94f592af | 5466 | as_bad_where (fixP->fx_file, fixP->fx_line, |
99a814a1 AM |
5467 | _("must branch to an address a multiple of 4")); |
5468 | if ((offsetT) value < -0x40000000 | |
5469 | || (offsetT) value >= 0x40000000) | |
94f592af | 5470 | as_bad_where (fixP->fx_file, fixP->fx_line, |
99a814a1 AM |
5471 | _("@local or @plt branch destination is too far away, %ld bytes"), |
5472 | (long) value); | |
5473 | insn = insn | (value & 0x03fffffc); | |
5474 | if (target_big_endian) | |
5475 | bfd_putb32 ((bfd_vma) insn, (unsigned char *) where); | |
5476 | else | |
5477 | bfd_putl32 ((bfd_vma) insn, (unsigned char *) where); | |
5478 | } | |
252b5132 RH |
5479 | break; |
5480 | ||
5481 | case BFD_RELOC_VTABLE_INHERIT: | |
94f592af NC |
5482 | fixP->fx_done = 0; |
5483 | if (fixP->fx_addsy | |
5484 | && !S_IS_DEFINED (fixP->fx_addsy) | |
5485 | && !S_IS_WEAK (fixP->fx_addsy)) | |
5486 | S_SET_WEAK (fixP->fx_addsy); | |
252b5132 RH |
5487 | break; |
5488 | ||
5489 | case BFD_RELOC_VTABLE_ENTRY: | |
94f592af | 5490 | fixP->fx_done = 0; |
252b5132 RH |
5491 | break; |
5492 | ||
0baf16f2 AM |
5493 | #ifdef OBJ_ELF |
5494 | #if BFD_DEFAULT_TARGET_SIZE == 64 | |
5495 | /* Generated by reference to `sym@tocbase'. The sym is | |
5496 | ignored by the linker. */ | |
5497 | case BFD_RELOC_PPC64_TOC: | |
94f592af | 5498 | fixP->fx_done = 0; |
0baf16f2 AM |
5499 | break; |
5500 | #endif | |
5501 | #endif | |
252b5132 | 5502 | default: |
bc805888 | 5503 | fprintf (stderr, |
94f592af | 5504 | _("Gas failure, reloc value %d\n"), fixP->fx_r_type); |
99a814a1 | 5505 | fflush (stderr); |
252b5132 RH |
5506 | abort (); |
5507 | } | |
5508 | } | |
5509 | ||
5510 | #ifdef OBJ_ELF | |
94f592af | 5511 | fixP->fx_addnumber = value; |
252b5132 | 5512 | #else |
94f592af NC |
5513 | if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16) |
5514 | fixP->fx_addnumber = 0; | |
252b5132 RH |
5515 | else |
5516 | { | |
5517 | #ifdef TE_PE | |
94f592af | 5518 | fixP->fx_addnumber = 0; |
252b5132 RH |
5519 | #else |
5520 | /* We want to use the offset within the data segment of the | |
5521 | symbol, not the actual VMA of the symbol. */ | |
94f592af NC |
5522 | fixP->fx_addnumber = |
5523 | - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy)); | |
252b5132 RH |
5524 | #endif |
5525 | } | |
5526 | #endif | |
252b5132 RH |
5527 | } |
5528 | ||
5529 | /* Generate a reloc for a fixup. */ | |
5530 | ||
5531 | arelent * | |
5532 | tc_gen_reloc (seg, fixp) | |
92161534 | 5533 | asection *seg ATTRIBUTE_UNUSED; |
252b5132 RH |
5534 | fixS *fixp; |
5535 | { | |
5536 | arelent *reloc; | |
5537 | ||
5538 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
5539 | ||
49309057 ILT |
5540 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
5541 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
5542 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
5543 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
5544 | if (reloc->howto == (reloc_howto_type *) NULL) | |
5545 | { | |
5546 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
99a814a1 AM |
5547 | _("reloc %d not supported by object file format"), |
5548 | (int) fixp->fx_r_type); | |
252b5132 RH |
5549 | return NULL; |
5550 | } | |
5551 | reloc->addend = fixp->fx_addnumber; | |
5552 | ||
5553 | return reloc; | |
5554 | } |