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252b5132 | 1 | /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000) |
f7e42eb4 | 2 | Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
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; | |
879 | /* -m601 means to assemble for the Motorola 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 | |
99a814a1 | 884 | Motorola 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; | |
418c1742 MG |
890 | /* -m403 and -m405 mean to assemble for the Motorola PowerPC 403/405. */ |
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 MG |
899 | else if (strcmp (arg, "altivec") == 0) |
900 | ppc_cpu |= PPC_OPCODE_ALTIVEC; | |
252b5132 | 901 | /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC |
99a814a1 | 902 | 620. */ |
252b5132 RH |
903 | else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0) |
904 | { | |
418c1742 | 905 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_64; |
252b5132 RH |
906 | ppc_size = PPC_OPCODE_64; |
907 | } | |
d0e9a01c RH |
908 | else if (strcmp (arg, "ppc64bridge") == 0) |
909 | { | |
418c1742 MG |
910 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_64_BRIDGE | PPC_OPCODE_64; |
911 | ppc_size = PPC_OPCODE_64; | |
912 | } | |
913 | /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */ | |
914 | else if (strcmp (arg, "booke") == 0 || strcmp (arg, "booke32") == 0) | |
915 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE; | |
916 | /* -mbooke64 means enable 64-bit BookE support. */ | |
917 | else if (strcmp (arg, "booke64") == 0) | |
918 | { | |
919 | ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | | |
920 | PPC_OPCODE_BOOKE64 | PPC_OPCODE_64; | |
d0e9a01c RH |
921 | ppc_size = PPC_OPCODE_64; |
922 | } | |
252b5132 RH |
923 | /* -mcom means assemble for the common intersection between Power |
924 | and PowerPC. At present, we just allow the union, rather | |
925 | than the intersection. */ | |
926 | else if (strcmp (arg, "com") == 0) | |
927 | ppc_cpu = PPC_OPCODE_COMMON; | |
928 | /* -many means to assemble for any architecture (PWR/PWRX/PPC). */ | |
929 | else if (strcmp (arg, "any") == 0) | |
930 | ppc_cpu = PPC_OPCODE_ANY; | |
931 | ||
932 | else if (strcmp (arg, "regnames") == 0) | |
933 | reg_names_p = true; | |
934 | ||
935 | else if (strcmp (arg, "no-regnames") == 0) | |
936 | reg_names_p = false; | |
937 | ||
938 | #ifdef OBJ_ELF | |
99a814a1 AM |
939 | /* -mrelocatable/-mrelocatable-lib -- warn about initializations |
940 | that require relocation. */ | |
252b5132 RH |
941 | else if (strcmp (arg, "relocatable") == 0) |
942 | { | |
5d6f4f16 | 943 | shlib = SHLIB_MRELOCATABLE; |
252b5132 RH |
944 | ppc_flags |= EF_PPC_RELOCATABLE; |
945 | } | |
946 | ||
947 | else if (strcmp (arg, "relocatable-lib") == 0) | |
948 | { | |
5d6f4f16 | 949 | shlib = SHLIB_MRELOCATABLE; |
252b5132 RH |
950 | ppc_flags |= EF_PPC_RELOCATABLE_LIB; |
951 | } | |
952 | ||
99a814a1 | 953 | /* -memb, set embedded bit. */ |
252b5132 RH |
954 | else if (strcmp (arg, "emb") == 0) |
955 | ppc_flags |= EF_PPC_EMB; | |
956 | ||
99a814a1 AM |
957 | /* -mlittle/-mbig set the endianess. */ |
958 | else if (strcmp (arg, "little") == 0 | |
959 | || strcmp (arg, "little-endian") == 0) | |
252b5132 RH |
960 | { |
961 | target_big_endian = 0; | |
962 | set_target_endian = 1; | |
963 | } | |
964 | ||
965 | else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0) | |
966 | { | |
967 | target_big_endian = 1; | |
968 | set_target_endian = 1; | |
969 | } | |
970 | ||
971 | else if (strcmp (arg, "solaris") == 0) | |
972 | { | |
973 | msolaris = true; | |
974 | ppc_comment_chars = ppc_solaris_comment_chars; | |
975 | } | |
976 | ||
977 | else if (strcmp (arg, "no-solaris") == 0) | |
978 | { | |
979 | msolaris = false; | |
980 | ppc_comment_chars = ppc_eabi_comment_chars; | |
981 | } | |
982 | #endif | |
983 | else | |
984 | { | |
985 | as_bad (_("invalid switch -m%s"), arg); | |
986 | return 0; | |
987 | } | |
988 | break; | |
989 | ||
990 | #ifdef OBJ_ELF | |
991 | /* -V: SVR4 argument to print version ID. */ | |
992 | case 'V': | |
993 | print_version_id (); | |
994 | break; | |
995 | ||
996 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section | |
997 | should be emitted or not. FIXME: Not implemented. */ | |
998 | case 'Q': | |
999 | break; | |
1000 | ||
1001 | /* Solaris takes -s to specify that .stabs go in a .stabs section, | |
1002 | rather than .stabs.excl, which is ignored by the linker. | |
1003 | FIXME: Not implemented. */ | |
1004 | case 's': | |
1005 | if (arg) | |
1006 | return 0; | |
1007 | ||
1008 | break; | |
1009 | #endif | |
1010 | ||
1011 | default: | |
1012 | return 0; | |
1013 | } | |
1014 | ||
1015 | return 1; | |
1016 | } | |
1017 | ||
1018 | void | |
1019 | md_show_usage (stream) | |
1020 | FILE *stream; | |
1021 | { | |
bc805888 | 1022 | fprintf (stream, _("\ |
252b5132 RH |
1023 | PowerPC options:\n\ |
1024 | -u ignored\n\ | |
1025 | -mpwrx, -mpwr2 generate code for IBM POWER/2 (RIOS2)\n\ | |
1026 | -mpwr generate code for IBM POWER (RIOS1)\n\ | |
1027 | -m601 generate code for Motorola PowerPC 601\n\ | |
418c1742 | 1028 | -mppc, -mppc32, -m603, -m604\n\ |
252b5132 | 1029 | generate code for Motorola PowerPC 603/604\n\ |
418c1742 | 1030 | -m403, -m405 generate code for Motorola PowerPC 403/405\n\ |
f5c120c5 MG |
1031 | -m7400, -m7410, -m7450, -m7455\n\ |
1032 | generate code For Motorola PowerPC 7400/7410/7450/7455\n\ | |
252b5132 | 1033 | -mppc64, -m620 generate code for Motorola PowerPC 620\n\ |
d0e9a01c | 1034 | -mppc64bridge generate code for PowerPC 64, including bridge insns\n\ |
f5c120c5 MG |
1035 | -mbooke64 generate code for 64-bit Motorola BookE\n\ |
1036 | -mbooke, mbooke32 generate code for 32-bit Motorola BookE\n\ | |
1037 | -maltivec generate code for AltiVec\n\ | |
252b5132 RH |
1038 | -mcom generate code Power/PowerPC common instructions\n\ |
1039 | -many generate code for any architecture (PWR/PWRX/PPC)\n\ | |
1040 | -mregnames Allow symbolic names for registers\n\ | |
1041 | -mno-regnames Do not allow symbolic names for registers\n")); | |
1042 | #ifdef OBJ_ELF | |
bc805888 | 1043 | fprintf (stream, _("\ |
252b5132 RH |
1044 | -mrelocatable support for GCC's -mrelocatble option\n\ |
1045 | -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\ | |
1046 | -memb set PPC_EMB bit in ELF flags\n\ | |
1047 | -mlittle, -mlittle-endian\n\ | |
1048 | generate code for a little endian machine\n\ | |
1049 | -mbig, -mbig-endian generate code for a big endian machine\n\ | |
1050 | -msolaris generate code for Solaris\n\ | |
1051 | -mno-solaris do not generate code for Solaris\n\ | |
1052 | -V print assembler version number\n\ | |
1053 | -Qy, -Qn ignored\n")); | |
1054 | #endif | |
1055 | } | |
1056 | \f | |
1057 | /* Set ppc_cpu if it is not already set. */ | |
1058 | ||
1059 | static void | |
1060 | ppc_set_cpu () | |
1061 | { | |
1062 | const char *default_os = TARGET_OS; | |
1063 | const char *default_cpu = TARGET_CPU; | |
1064 | ||
1065 | if (ppc_cpu == 0) | |
1066 | { | |
1067 | if (strncmp (default_os, "aix", 3) == 0 | |
1068 | && default_os[3] >= '4' && default_os[3] <= '9') | |
1069 | ppc_cpu = PPC_OPCODE_COMMON; | |
1070 | else if (strncmp (default_os, "aix3", 4) == 0) | |
1071 | ppc_cpu = PPC_OPCODE_POWER; | |
1072 | else if (strcmp (default_cpu, "rs6000") == 0) | |
1073 | ppc_cpu = PPC_OPCODE_POWER; | |
0baf16f2 | 1074 | else if (strncmp (default_cpu, "powerpc", 7) == 0) |
252b5132 RH |
1075 | ppc_cpu = PPC_OPCODE_PPC; |
1076 | else | |
99a814a1 AM |
1077 | as_fatal (_("Unknown default cpu = %s, os = %s"), |
1078 | default_cpu, default_os); | |
252b5132 RH |
1079 | } |
1080 | } | |
1081 | ||
1082 | /* Figure out the BFD architecture to use. */ | |
1083 | ||
1084 | enum bfd_architecture | |
1085 | ppc_arch () | |
1086 | { | |
1087 | const char *default_cpu = TARGET_CPU; | |
1088 | ppc_set_cpu (); | |
1089 | ||
1090 | if ((ppc_cpu & PPC_OPCODE_PPC) != 0) | |
1091 | return bfd_arch_powerpc; | |
1092 | else if ((ppc_cpu & PPC_OPCODE_POWER) != 0) | |
1093 | return bfd_arch_rs6000; | |
1094 | else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0) | |
1095 | { | |
1096 | if (strcmp (default_cpu, "rs6000") == 0) | |
1097 | return bfd_arch_rs6000; | |
0baf16f2 | 1098 | else if (strncmp (default_cpu, "powerpc", 7) == 0) |
252b5132 RH |
1099 | return bfd_arch_powerpc; |
1100 | } | |
1101 | ||
1102 | as_fatal (_("Neither Power nor PowerPC opcodes were selected.")); | |
1103 | return bfd_arch_unknown; | |
1104 | } | |
1105 | ||
7f6d05e8 CP |
1106 | unsigned long |
1107 | ppc_mach () | |
1108 | { | |
99a814a1 | 1109 | return ppc_size == PPC_OPCODE_64 ? 620 : 0; |
7f6d05e8 CP |
1110 | } |
1111 | ||
0baf16f2 | 1112 | #ifdef OBJ_XCOFF |
7f6d05e8 | 1113 | int |
99a814a1 | 1114 | ppc_subseg_align () |
7f6d05e8 | 1115 | { |
99a814a1 | 1116 | return ppc_xcoff64 ? 3 : 2; |
7f6d05e8 | 1117 | } |
0baf16f2 | 1118 | #endif |
7f6d05e8 | 1119 | |
81d4177b | 1120 | extern char* |
99a814a1 | 1121 | ppc_target_format () |
7f6d05e8 CP |
1122 | { |
1123 | #ifdef OBJ_COFF | |
1124 | #ifdef TE_PE | |
99a814a1 | 1125 | return target_big_endian ? "pe-powerpc" : "pe-powerpcle"; |
7f6d05e8 | 1126 | #elif TE_POWERMAC |
0baf16f2 | 1127 | return "xcoff-powermac"; |
7f6d05e8 | 1128 | #else |
99a814a1 | 1129 | return ppc_xcoff64 ? "aixcoff64-rs6000" : "aixcoff-rs6000"; |
7f6d05e8 | 1130 | #endif |
7f6d05e8 CP |
1131 | #endif |
1132 | #ifdef OBJ_ELF | |
15c1449b AM |
1133 | boolean is64 = BFD_DEFAULT_TARGET_SIZE == 64 && ppc_size == PPC_OPCODE_64; |
1134 | ||
0baf16f2 | 1135 | return (target_big_endian |
15c1449b AM |
1136 | ? (is64 ? "elf64-powerpc" : "elf32-powerpc") |
1137 | : (is64 ? "elf64-powerpcle" : "elf32-powerpcle")); | |
7f6d05e8 CP |
1138 | #endif |
1139 | } | |
1140 | ||
252b5132 RH |
1141 | /* This function is called when the assembler starts up. It is called |
1142 | after the options have been parsed and the output file has been | |
1143 | opened. */ | |
1144 | ||
1145 | void | |
1146 | md_begin () | |
1147 | { | |
1148 | register const struct powerpc_opcode *op; | |
1149 | const struct powerpc_opcode *op_end; | |
1150 | const struct powerpc_macro *macro; | |
1151 | const struct powerpc_macro *macro_end; | |
1152 | boolean dup_insn = false; | |
1153 | ||
1154 | ppc_set_cpu (); | |
1155 | ||
1156 | #ifdef OBJ_ELF | |
81d4177b | 1157 | /* Set the ELF flags if desired. */ |
252b5132 RH |
1158 | if (ppc_flags && !msolaris) |
1159 | bfd_set_private_flags (stdoutput, ppc_flags); | |
1160 | #endif | |
1161 | ||
1162 | /* Insert the opcodes into a hash table. */ | |
1163 | ppc_hash = hash_new (); | |
1164 | ||
1165 | op_end = powerpc_opcodes + powerpc_num_opcodes; | |
1166 | for (op = powerpc_opcodes; op < op_end; op++) | |
1167 | { | |
1168 | know ((op->opcode & op->mask) == op->opcode); | |
1169 | ||
1170 | if ((op->flags & ppc_cpu) != 0 | |
1171 | && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0 | |
d0e9a01c RH |
1172 | || (op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == ppc_size |
1173 | || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0)) | |
252b5132 RH |
1174 | { |
1175 | const char *retval; | |
1176 | ||
1177 | retval = hash_insert (ppc_hash, op->name, (PTR) op); | |
1178 | if (retval != (const char *) NULL) | |
1179 | { | |
99a814a1 | 1180 | /* Ignore Power duplicates for -m601. */ |
252b5132 RH |
1181 | if ((ppc_cpu & PPC_OPCODE_601) != 0 |
1182 | && (op->flags & PPC_OPCODE_POWER) != 0) | |
1183 | continue; | |
1184 | ||
99a814a1 AM |
1185 | as_bad (_("Internal assembler error for instruction %s"), |
1186 | op->name); | |
252b5132 RH |
1187 | dup_insn = true; |
1188 | } | |
1189 | } | |
1190 | } | |
1191 | ||
1192 | /* Insert the macros into a hash table. */ | |
1193 | ppc_macro_hash = hash_new (); | |
1194 | ||
1195 | macro_end = powerpc_macros + powerpc_num_macros; | |
1196 | for (macro = powerpc_macros; macro < macro_end; macro++) | |
1197 | { | |
1198 | if ((macro->flags & ppc_cpu) != 0) | |
1199 | { | |
1200 | const char *retval; | |
1201 | ||
1202 | retval = hash_insert (ppc_macro_hash, macro->name, (PTR) macro); | |
1203 | if (retval != (const char *) NULL) | |
1204 | { | |
1205 | as_bad (_("Internal assembler error for macro %s"), macro->name); | |
1206 | dup_insn = true; | |
1207 | } | |
1208 | } | |
1209 | } | |
1210 | ||
1211 | if (dup_insn) | |
1212 | abort (); | |
1213 | ||
99a814a1 AM |
1214 | /* Tell the main code what the endianness is if it is not overidden |
1215 | by the user. */ | |
252b5132 RH |
1216 | if (!set_target_endian) |
1217 | { | |
1218 | set_target_endian = 1; | |
1219 | target_big_endian = PPC_BIG_ENDIAN; | |
1220 | } | |
1221 | ||
1222 | #ifdef OBJ_XCOFF | |
1223 | ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG); | |
1224 | ||
1225 | /* Create dummy symbols to serve as initial csects. This forces the | |
1226 | text csects to precede the data csects. These symbols will not | |
1227 | be output. */ | |
1228 | ppc_text_csects = symbol_make ("dummy\001"); | |
809ffe0d | 1229 | symbol_get_tc (ppc_text_csects)->within = ppc_text_csects; |
252b5132 | 1230 | ppc_data_csects = symbol_make ("dummy\001"); |
809ffe0d | 1231 | symbol_get_tc (ppc_data_csects)->within = ppc_data_csects; |
252b5132 RH |
1232 | #endif |
1233 | ||
1234 | #ifdef TE_PE | |
1235 | ||
1236 | ppc_current_section = text_section; | |
81d4177b | 1237 | ppc_previous_section = 0; |
252b5132 RH |
1238 | |
1239 | #endif | |
1240 | } | |
1241 | ||
1242 | /* Insert an operand value into an instruction. */ | |
1243 | ||
1244 | static unsigned long | |
1245 | ppc_insert_operand (insn, operand, val, file, line) | |
1246 | unsigned long insn; | |
1247 | const struct powerpc_operand *operand; | |
1248 | offsetT val; | |
1249 | char *file; | |
1250 | unsigned int line; | |
1251 | { | |
1252 | if (operand->bits != 32) | |
1253 | { | |
1254 | long min, max; | |
1255 | offsetT test; | |
1256 | ||
1257 | if ((operand->flags & PPC_OPERAND_SIGNED) != 0) | |
1258 | { | |
d0e9a01c | 1259 | if ((operand->flags & PPC_OPERAND_SIGNOPT) != 0) |
252b5132 RH |
1260 | max = (1 << operand->bits) - 1; |
1261 | else | |
1262 | max = (1 << (operand->bits - 1)) - 1; | |
1263 | min = - (1 << (operand->bits - 1)); | |
1264 | ||
1265 | if (ppc_size == PPC_OPCODE_32) | |
1266 | { | |
1267 | /* Some people write 32 bit hex constants with the sign | |
1268 | extension done by hand. This shouldn't really be | |
1269 | valid, but, to permit this code to assemble on a 64 | |
1270 | bit host, we sign extend the 32 bit value. */ | |
1271 | if (val > 0 | |
92161534 ILT |
1272 | && (val & (offsetT) 0x80000000) != 0 |
1273 | && (val & (offsetT) 0xffffffff) == val) | |
252b5132 RH |
1274 | { |
1275 | val -= 0x80000000; | |
1276 | val -= 0x80000000; | |
1277 | } | |
1278 | } | |
1279 | } | |
1280 | else | |
1281 | { | |
1282 | max = (1 << operand->bits) - 1; | |
1283 | min = 0; | |
1284 | } | |
1285 | ||
1286 | if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0) | |
1287 | test = - val; | |
1288 | else | |
1289 | test = val; | |
1290 | ||
1291 | if (test < (offsetT) min || test > (offsetT) max) | |
1292 | { | |
1293 | const char *err = | |
1294 | _("operand out of range (%s not between %ld and %ld)"); | |
1295 | char buf[100]; | |
1296 | ||
1297 | sprint_value (buf, test); | |
0baf16f2 | 1298 | as_bad_where (file, line, err, buf, min, max); |
252b5132 RH |
1299 | } |
1300 | } | |
1301 | ||
1302 | if (operand->insert) | |
1303 | { | |
1304 | const char *errmsg; | |
1305 | ||
1306 | errmsg = NULL; | |
802a735e | 1307 | insn = (*operand->insert) (insn, (long) val, ppc_cpu | ppc_size, &errmsg); |
252b5132 | 1308 | if (errmsg != (const char *) NULL) |
0baf16f2 | 1309 | as_bad_where (file, line, errmsg); |
252b5132 RH |
1310 | } |
1311 | else | |
1312 | insn |= (((long) val & ((1 << operand->bits) - 1)) | |
1313 | << operand->shift); | |
1314 | ||
1315 | return insn; | |
1316 | } | |
1317 | ||
1318 | \f | |
1319 | #ifdef OBJ_ELF | |
1320 | /* Parse @got, etc. and return the desired relocation. */ | |
1321 | static bfd_reloc_code_real_type | |
1322 | ppc_elf_suffix (str_p, exp_p) | |
1323 | char **str_p; | |
1324 | expressionS *exp_p; | |
1325 | { | |
1326 | struct map_bfd { | |
1327 | char *string; | |
1328 | int length; | |
15c1449b | 1329 | int reloc; |
252b5132 RH |
1330 | }; |
1331 | ||
1332 | char ident[20]; | |
1333 | char *str = *str_p; | |
1334 | char *str2; | |
1335 | int ch; | |
1336 | int len; | |
15c1449b | 1337 | const struct map_bfd *ptr; |
252b5132 | 1338 | |
bc805888 | 1339 | #define MAP(str,reloc) { str, sizeof (str)-1, reloc } |
252b5132 | 1340 | |
15c1449b AM |
1341 | static const struct map_bfd mapping[] = { |
1342 | MAP ("l", (int) BFD_RELOC_LO16), | |
1343 | MAP ("h", (int) BFD_RELOC_HI16), | |
1344 | MAP ("ha", (int) BFD_RELOC_HI16_S), | |
1345 | MAP ("brtaken", (int) BFD_RELOC_PPC_B16_BRTAKEN), | |
1346 | MAP ("brntaken", (int) BFD_RELOC_PPC_B16_BRNTAKEN), | |
1347 | MAP ("got", (int) BFD_RELOC_16_GOTOFF), | |
1348 | MAP ("got@l", (int) BFD_RELOC_LO16_GOTOFF), | |
1349 | MAP ("got@h", (int) BFD_RELOC_HI16_GOTOFF), | |
1350 | MAP ("got@ha", (int) BFD_RELOC_HI16_S_GOTOFF), | |
1351 | MAP ("fixup", (int) BFD_RELOC_CTOR), /* warning with -mrelocatable */ | |
1352 | MAP ("plt", (int) BFD_RELOC_24_PLT_PCREL), | |
1353 | MAP ("pltrel24", (int) BFD_RELOC_24_PLT_PCREL), | |
1354 | MAP ("copy", (int) BFD_RELOC_PPC_COPY), | |
1355 | MAP ("globdat", (int) BFD_RELOC_PPC_GLOB_DAT), | |
1356 | MAP ("local24pc", (int) BFD_RELOC_PPC_LOCAL24PC), | |
1357 | MAP ("local", (int) BFD_RELOC_PPC_LOCAL24PC), | |
1358 | MAP ("pltrel", (int) BFD_RELOC_32_PLT_PCREL), | |
1359 | MAP ("plt@l", (int) BFD_RELOC_LO16_PLTOFF), | |
1360 | MAP ("plt@h", (int) BFD_RELOC_HI16_PLTOFF), | |
1361 | MAP ("plt@ha", (int) BFD_RELOC_HI16_S_PLTOFF), | |
1362 | MAP ("sdarel", (int) BFD_RELOC_GPREL16), | |
1363 | MAP ("sectoff", (int) BFD_RELOC_32_BASEREL), | |
1364 | MAP ("sectoff@l", (int) BFD_RELOC_LO16_BASEREL), | |
1365 | MAP ("sectoff@h", (int) BFD_RELOC_HI16_BASEREL), | |
1366 | MAP ("sectoff@ha", (int) BFD_RELOC_HI16_S_BASEREL), | |
1367 | MAP ("naddr", (int) BFD_RELOC_PPC_EMB_NADDR32), | |
1368 | MAP ("naddr16", (int) BFD_RELOC_PPC_EMB_NADDR16), | |
1369 | MAP ("naddr@l", (int) BFD_RELOC_PPC_EMB_NADDR16_LO), | |
1370 | MAP ("naddr@h", (int) BFD_RELOC_PPC_EMB_NADDR16_HI), | |
1371 | MAP ("naddr@ha", (int) BFD_RELOC_PPC_EMB_NADDR16_HA), | |
1372 | MAP ("sdai16", (int) BFD_RELOC_PPC_EMB_SDAI16), | |
1373 | MAP ("sda2rel", (int) BFD_RELOC_PPC_EMB_SDA2REL), | |
1374 | MAP ("sda2i16", (int) BFD_RELOC_PPC_EMB_SDA2I16), | |
1375 | MAP ("sda21", (int) BFD_RELOC_PPC_EMB_SDA21), | |
1376 | MAP ("mrkref", (int) BFD_RELOC_PPC_EMB_MRKREF), | |
1377 | MAP ("relsect", (int) BFD_RELOC_PPC_EMB_RELSEC16), | |
1378 | MAP ("relsect@l", (int) BFD_RELOC_PPC_EMB_RELST_LO), | |
1379 | MAP ("relsect@h", (int) BFD_RELOC_PPC_EMB_RELST_HI), | |
1380 | MAP ("relsect@ha", (int) BFD_RELOC_PPC_EMB_RELST_HA), | |
1381 | MAP ("bitfld", (int) BFD_RELOC_PPC_EMB_BIT_FLD), | |
1382 | MAP ("relsda", (int) BFD_RELOC_PPC_EMB_RELSDA), | |
1383 | MAP ("xgot", (int) BFD_RELOC_PPC_TOC16), | |
0baf16f2 | 1384 | #if BFD_DEFAULT_TARGET_SIZE == 64 |
15c1449b AM |
1385 | MAP ("higher", - (int) BFD_RELOC_PPC64_HIGHER), |
1386 | MAP ("highera", - (int) BFD_RELOC_PPC64_HIGHER_S), | |
1387 | MAP ("highest", - (int) BFD_RELOC_PPC64_HIGHEST), | |
1388 | MAP ("highesta", - (int) BFD_RELOC_PPC64_HIGHEST_S), | |
1389 | MAP ("tocbase", - (int) BFD_RELOC_PPC64_TOC), | |
1390 | MAP ("toc", - (int) BFD_RELOC_PPC_TOC16), | |
1391 | MAP ("toc@l", - (int) BFD_RELOC_PPC64_TOC16_LO), | |
1392 | MAP ("toc@h", - (int) BFD_RELOC_PPC64_TOC16_HI), | |
1393 | MAP ("toc@ha", - (int) BFD_RELOC_PPC64_TOC16_HA), | |
0baf16f2 | 1394 | #endif |
15c1449b | 1395 | { (char *) 0, 0, (int) BFD_RELOC_UNUSED } |
252b5132 RH |
1396 | }; |
1397 | ||
1398 | if (*str++ != '@') | |
1399 | return BFD_RELOC_UNUSED; | |
1400 | ||
1401 | for (ch = *str, str2 = ident; | |
1402 | (str2 < ident + sizeof (ident) - 1 | |
3882b010 | 1403 | && (ISALNUM (ch) || ch == '@')); |
252b5132 RH |
1404 | ch = *++str) |
1405 | { | |
3882b010 | 1406 | *str2++ = TOLOWER (ch); |
252b5132 RH |
1407 | } |
1408 | ||
1409 | *str2 = '\0'; | |
1410 | len = str2 - ident; | |
1411 | ||
1412 | ch = ident[0]; | |
1413 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
1414 | if (ch == ptr->string[0] | |
1415 | && len == ptr->length | |
1416 | && memcmp (ident, ptr->string, ptr->length) == 0) | |
1417 | { | |
15c1449b AM |
1418 | int reloc = ptr->reloc; |
1419 | ||
1420 | if (BFD_DEFAULT_TARGET_SIZE == 64 && reloc < 0) | |
1421 | { | |
1422 | if (ppc_size != PPC_OPCODE_64) | |
1423 | return BFD_RELOC_UNUSED; | |
1424 | reloc = -reloc; | |
1425 | } | |
1426 | ||
252b5132 | 1427 | if (exp_p->X_add_number != 0 |
15c1449b AM |
1428 | && (reloc == (int) BFD_RELOC_16_GOTOFF |
1429 | || reloc == (int) BFD_RELOC_LO16_GOTOFF | |
1430 | || reloc == (int) BFD_RELOC_HI16_GOTOFF | |
1431 | || reloc == (int) BFD_RELOC_HI16_S_GOTOFF)) | |
252b5132 RH |
1432 | as_warn (_("identifier+constant@got means identifier@got+constant")); |
1433 | ||
99a814a1 | 1434 | /* Now check for identifier@suffix+constant. */ |
252b5132 RH |
1435 | if (*str == '-' || *str == '+') |
1436 | { | |
1437 | char *orig_line = input_line_pointer; | |
1438 | expressionS new_exp; | |
1439 | ||
1440 | input_line_pointer = str; | |
1441 | expression (&new_exp); | |
1442 | if (new_exp.X_op == O_constant) | |
1443 | { | |
1444 | exp_p->X_add_number += new_exp.X_add_number; | |
1445 | str = input_line_pointer; | |
1446 | } | |
1447 | ||
1448 | if (&input_line_pointer != str_p) | |
1449 | input_line_pointer = orig_line; | |
1450 | } | |
252b5132 | 1451 | *str_p = str; |
0baf16f2 AM |
1452 | |
1453 | if (BFD_DEFAULT_TARGET_SIZE == 64 | |
15c1449b | 1454 | && reloc == (int) BFD_RELOC_PPC64_TOC |
0baf16f2 AM |
1455 | && exp_p->X_op == O_symbol) |
1456 | { | |
1457 | /* This reloc type ignores the symbol. Change the symbol | |
1458 | so that the dummy .TOC. symbol can be omitted from the | |
1459 | object file. */ | |
1460 | exp_p->X_add_symbol = &abs_symbol; | |
1461 | } | |
1462 | ||
15c1449b | 1463 | return (bfd_reloc_code_real_type) reloc; |
252b5132 RH |
1464 | } |
1465 | ||
1466 | return BFD_RELOC_UNUSED; | |
1467 | } | |
1468 | ||
99a814a1 AM |
1469 | /* Like normal .long/.short/.word, except support @got, etc. |
1470 | Clobbers input_line_pointer, checks end-of-line. */ | |
252b5132 RH |
1471 | static void |
1472 | ppc_elf_cons (nbytes) | |
0baf16f2 | 1473 | register int nbytes; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */ |
252b5132 RH |
1474 | { |
1475 | expressionS exp; | |
1476 | bfd_reloc_code_real_type reloc; | |
1477 | ||
1478 | if (is_it_end_of_statement ()) | |
1479 | { | |
1480 | demand_empty_rest_of_line (); | |
1481 | return; | |
1482 | } | |
1483 | ||
1484 | do | |
1485 | { | |
1486 | expression (&exp); | |
1487 | if (exp.X_op == O_symbol | |
1488 | && *input_line_pointer == '@' | |
99a814a1 AM |
1489 | && (reloc = ppc_elf_suffix (&input_line_pointer, |
1490 | &exp)) != BFD_RELOC_UNUSED) | |
252b5132 | 1491 | { |
99a814a1 AM |
1492 | reloc_howto_type *reloc_howto; |
1493 | int size; | |
1494 | ||
1495 | reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc); | |
1496 | size = bfd_get_reloc_size (reloc_howto); | |
252b5132 RH |
1497 | |
1498 | if (size > nbytes) | |
0baf16f2 AM |
1499 | { |
1500 | as_bad (_("%s relocations do not fit in %d bytes\n"), | |
1501 | reloc_howto->name, nbytes); | |
1502 | } | |
252b5132 RH |
1503 | else |
1504 | { | |
0baf16f2 AM |
1505 | char *p; |
1506 | int offset; | |
252b5132 | 1507 | |
0baf16f2 AM |
1508 | p = frag_more (nbytes); |
1509 | offset = 0; | |
1510 | if (target_big_endian) | |
1511 | offset = nbytes - size; | |
99a814a1 AM |
1512 | fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size, |
1513 | &exp, 0, reloc); | |
252b5132 RH |
1514 | } |
1515 | } | |
1516 | else | |
1517 | emit_expr (&exp, (unsigned int) nbytes); | |
1518 | } | |
1519 | while (*input_line_pointer++ == ','); | |
1520 | ||
99a814a1 AM |
1521 | /* Put terminator back into stream. */ |
1522 | input_line_pointer--; | |
252b5132 RH |
1523 | demand_empty_rest_of_line (); |
1524 | } | |
1525 | ||
1526 | /* Solaris pseduo op to change to the .rodata section. */ | |
1527 | static void | |
1528 | ppc_elf_rdata (xxx) | |
1529 | int xxx; | |
1530 | { | |
1531 | char *save_line = input_line_pointer; | |
1532 | static char section[] = ".rodata\n"; | |
1533 | ||
99a814a1 | 1534 | /* Just pretend this is .section .rodata */ |
252b5132 RH |
1535 | input_line_pointer = section; |
1536 | obj_elf_section (xxx); | |
1537 | ||
1538 | input_line_pointer = save_line; | |
1539 | } | |
1540 | ||
99a814a1 | 1541 | /* Pseudo op to make file scope bss items. */ |
252b5132 | 1542 | static void |
99a814a1 | 1543 | ppc_elf_lcomm (xxx) |
92161534 | 1544 | int xxx ATTRIBUTE_UNUSED; |
252b5132 RH |
1545 | { |
1546 | register char *name; | |
1547 | register char c; | |
1548 | register char *p; | |
1549 | offsetT size; | |
1550 | register symbolS *symbolP; | |
1551 | offsetT align; | |
1552 | segT old_sec; | |
1553 | int old_subsec; | |
1554 | char *pfrag; | |
1555 | int align2; | |
1556 | ||
1557 | name = input_line_pointer; | |
1558 | c = get_symbol_end (); | |
1559 | ||
99a814a1 | 1560 | /* just after name is now '\0'. */ |
252b5132 RH |
1561 | p = input_line_pointer; |
1562 | *p = c; | |
1563 | SKIP_WHITESPACE (); | |
1564 | if (*input_line_pointer != ',') | |
1565 | { | |
1566 | as_bad (_("Expected comma after symbol-name: rest of line ignored.")); | |
1567 | ignore_rest_of_line (); | |
1568 | return; | |
1569 | } | |
1570 | ||
1571 | input_line_pointer++; /* skip ',' */ | |
1572 | if ((size = get_absolute_expression ()) < 0) | |
1573 | { | |
1574 | as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size); | |
1575 | ignore_rest_of_line (); | |
1576 | return; | |
1577 | } | |
1578 | ||
1579 | /* The third argument to .lcomm is the alignment. */ | |
1580 | if (*input_line_pointer != ',') | |
1581 | align = 8; | |
1582 | else | |
1583 | { | |
1584 | ++input_line_pointer; | |
1585 | align = get_absolute_expression (); | |
1586 | if (align <= 0) | |
1587 | { | |
1588 | as_warn (_("ignoring bad alignment")); | |
1589 | align = 8; | |
1590 | } | |
1591 | } | |
1592 | ||
1593 | *p = 0; | |
1594 | symbolP = symbol_find_or_make (name); | |
1595 | *p = c; | |
1596 | ||
1597 | if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) | |
1598 | { | |
1599 | as_bad (_("Ignoring attempt to re-define symbol `%s'."), | |
1600 | S_GET_NAME (symbolP)); | |
1601 | ignore_rest_of_line (); | |
1602 | return; | |
1603 | } | |
1604 | ||
1605 | if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size) | |
1606 | { | |
1607 | as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."), | |
1608 | S_GET_NAME (symbolP), | |
1609 | (long) S_GET_VALUE (symbolP), | |
1610 | (long) size); | |
1611 | ||
1612 | ignore_rest_of_line (); | |
1613 | return; | |
1614 | } | |
1615 | ||
99a814a1 | 1616 | /* Allocate_bss. */ |
252b5132 RH |
1617 | old_sec = now_seg; |
1618 | old_subsec = now_subseg; | |
1619 | if (align) | |
1620 | { | |
99a814a1 | 1621 | /* Convert to a power of 2 alignment. */ |
252b5132 RH |
1622 | for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2); |
1623 | if (align != 1) | |
1624 | { | |
1625 | as_bad (_("Common alignment not a power of 2")); | |
1626 | ignore_rest_of_line (); | |
1627 | return; | |
1628 | } | |
1629 | } | |
1630 | else | |
1631 | align2 = 0; | |
1632 | ||
1633 | record_alignment (bss_section, align2); | |
1634 | subseg_set (bss_section, 0); | |
1635 | if (align2) | |
1636 | frag_align (align2, 0, 0); | |
1637 | if (S_GET_SEGMENT (symbolP) == bss_section) | |
49309057 ILT |
1638 | symbol_get_frag (symbolP)->fr_symbol = 0; |
1639 | symbol_set_frag (symbolP, frag_now); | |
252b5132 RH |
1640 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size, |
1641 | (char *) 0); | |
1642 | *pfrag = 0; | |
1643 | S_SET_SIZE (symbolP, size); | |
1644 | S_SET_SEGMENT (symbolP, bss_section); | |
1645 | subseg_set (old_sec, old_subsec); | |
1646 | demand_empty_rest_of_line (); | |
1647 | } | |
1648 | ||
1649 | /* Validate any relocations emitted for -mrelocatable, possibly adding | |
1650 | fixups for word relocations in writable segments, so we can adjust | |
1651 | them at runtime. */ | |
1652 | static void | |
1653 | ppc_elf_validate_fix (fixp, seg) | |
1654 | fixS *fixp; | |
1655 | segT seg; | |
1656 | { | |
1657 | if (fixp->fx_done || fixp->fx_pcrel) | |
1658 | return; | |
1659 | ||
1660 | switch (shlib) | |
1661 | { | |
1662 | case SHLIB_NONE: | |
1663 | case SHLIB_PIC: | |
1664 | return; | |
1665 | ||
5d6f4f16 | 1666 | case SHLIB_MRELOCATABLE: |
252b5132 RH |
1667 | if (fixp->fx_r_type <= BFD_RELOC_UNUSED |
1668 | && fixp->fx_r_type != BFD_RELOC_16_GOTOFF | |
1669 | && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF | |
1670 | && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF | |
1671 | && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF | |
1672 | && fixp->fx_r_type != BFD_RELOC_32_BASEREL | |
1673 | && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL | |
1674 | && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL | |
1675 | && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL | |
e138127a | 1676 | && (seg->flags & SEC_LOAD) != 0 |
252b5132 RH |
1677 | && strcmp (segment_name (seg), ".got2") != 0 |
1678 | && strcmp (segment_name (seg), ".dtors") != 0 | |
1679 | && strcmp (segment_name (seg), ".ctors") != 0 | |
1680 | && strcmp (segment_name (seg), ".fixup") != 0 | |
252b5132 RH |
1681 | && strcmp (segment_name (seg), ".gcc_except_table") != 0 |
1682 | && strcmp (segment_name (seg), ".eh_frame") != 0 | |
1683 | && strcmp (segment_name (seg), ".ex_shared") != 0) | |
1684 | { | |
1685 | if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0 | |
1686 | || fixp->fx_r_type != BFD_RELOC_CTOR) | |
1687 | { | |
1688 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1689 | _("Relocation cannot be done when using -mrelocatable")); | |
1690 | } | |
1691 | } | |
1692 | return; | |
1693 | } | |
1694 | } | |
0baf16f2 AM |
1695 | |
1696 | #if BFD_DEFAULT_TARGET_SIZE == 64 | |
1697 | /* Don't emit .TOC. symbol. */ | |
1698 | int | |
1699 | ppc_elf_frob_symbol (sym) | |
1700 | symbolS *sym; | |
1701 | { | |
1702 | const char *name; | |
1703 | ||
1704 | name = S_GET_NAME (sym); | |
1705 | if (name != NULL && strcmp (name, ".TOC.") == 0) | |
1706 | { | |
1707 | S_CLEAR_EXTERNAL (sym); | |
1708 | return 1; | |
1709 | } | |
1710 | ||
1711 | return 0; | |
1712 | } | |
1713 | #endif | |
252b5132 RH |
1714 | #endif /* OBJ_ELF */ |
1715 | \f | |
1716 | #ifdef TE_PE | |
1717 | ||
1718 | /* | |
99a814a1 | 1719 | * Summary of parse_toc_entry. |
252b5132 RH |
1720 | * |
1721 | * in: Input_line_pointer points to the '[' in one of: | |
1722 | * | |
1723 | * [toc] [tocv] [toc32] [toc64] | |
1724 | * | |
1725 | * Anything else is an error of one kind or another. | |
1726 | * | |
81d4177b | 1727 | * out: |
252b5132 RH |
1728 | * return value: success or failure |
1729 | * toc_kind: kind of toc reference | |
1730 | * input_line_pointer: | |
1731 | * success: first char after the ']' | |
1732 | * failure: unchanged | |
1733 | * | |
1734 | * settings: | |
1735 | * | |
1736 | * [toc] - rv == success, toc_kind = default_toc | |
1737 | * [tocv] - rv == success, toc_kind = data_in_toc | |
1738 | * [toc32] - rv == success, toc_kind = must_be_32 | |
1739 | * [toc64] - rv == success, toc_kind = must_be_64 | |
1740 | * | |
1741 | */ | |
1742 | ||
81d4177b KH |
1743 | enum toc_size_qualifier |
1744 | { | |
252b5132 RH |
1745 | default_toc, /* The toc cell constructed should be the system default size */ |
1746 | data_in_toc, /* This is a direct reference to a toc cell */ | |
1747 | must_be_32, /* The toc cell constructed must be 32 bits wide */ | |
1748 | must_be_64 /* The toc cell constructed must be 64 bits wide */ | |
1749 | }; | |
1750 | ||
1751 | static int | |
99a814a1 | 1752 | parse_toc_entry (toc_kind) |
252b5132 RH |
1753 | enum toc_size_qualifier *toc_kind; |
1754 | { | |
1755 | char *start; | |
1756 | char *toc_spec; | |
1757 | char c; | |
1758 | enum toc_size_qualifier t; | |
1759 | ||
99a814a1 | 1760 | /* Save the input_line_pointer. */ |
252b5132 RH |
1761 | start = input_line_pointer; |
1762 | ||
99a814a1 | 1763 | /* Skip over the '[' , and whitespace. */ |
252b5132 RH |
1764 | ++input_line_pointer; |
1765 | SKIP_WHITESPACE (); | |
81d4177b | 1766 | |
99a814a1 | 1767 | /* Find the spelling of the operand. */ |
252b5132 RH |
1768 | toc_spec = input_line_pointer; |
1769 | c = get_symbol_end (); | |
1770 | ||
99a814a1 | 1771 | if (strcmp (toc_spec, "toc") == 0) |
252b5132 RH |
1772 | { |
1773 | t = default_toc; | |
1774 | } | |
99a814a1 | 1775 | else if (strcmp (toc_spec, "tocv") == 0) |
252b5132 RH |
1776 | { |
1777 | t = data_in_toc; | |
1778 | } | |
99a814a1 | 1779 | else if (strcmp (toc_spec, "toc32") == 0) |
252b5132 RH |
1780 | { |
1781 | t = must_be_32; | |
1782 | } | |
99a814a1 | 1783 | else if (strcmp (toc_spec, "toc64") == 0) |
252b5132 RH |
1784 | { |
1785 | t = must_be_64; | |
1786 | } | |
1787 | else | |
1788 | { | |
1789 | as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec); | |
99a814a1 AM |
1790 | *input_line_pointer = c; |
1791 | input_line_pointer = start; | |
252b5132 RH |
1792 | return 0; |
1793 | } | |
1794 | ||
99a814a1 AM |
1795 | /* Now find the ']'. */ |
1796 | *input_line_pointer = c; | |
252b5132 | 1797 | |
81d4177b KH |
1798 | SKIP_WHITESPACE (); /* leading whitespace could be there. */ |
1799 | c = *input_line_pointer++; /* input_line_pointer->past char in c. */ | |
252b5132 RH |
1800 | |
1801 | if (c != ']') | |
1802 | { | |
1803 | as_bad (_("syntax error: expected `]', found `%c'"), c); | |
99a814a1 | 1804 | input_line_pointer = start; |
252b5132 RH |
1805 | return 0; |
1806 | } | |
1807 | ||
99a814a1 | 1808 | *toc_kind = t; |
252b5132 RH |
1809 | return 1; |
1810 | } | |
1811 | #endif | |
1812 | \f | |
1813 | ||
1814 | /* We need to keep a list of fixups. We can't simply generate them as | |
1815 | we go, because that would require us to first create the frag, and | |
1816 | that would screw up references to ``.''. */ | |
1817 | ||
1818 | struct ppc_fixup | |
1819 | { | |
1820 | expressionS exp; | |
1821 | int opindex; | |
1822 | bfd_reloc_code_real_type reloc; | |
1823 | }; | |
1824 | ||
1825 | #define MAX_INSN_FIXUPS (5) | |
1826 | ||
1827 | /* This routine is called for each instruction to be assembled. */ | |
1828 | ||
1829 | void | |
1830 | md_assemble (str) | |
1831 | char *str; | |
1832 | { | |
1833 | char *s; | |
1834 | const struct powerpc_opcode *opcode; | |
1835 | unsigned long insn; | |
1836 | const unsigned char *opindex_ptr; | |
1837 | int skip_optional; | |
1838 | int need_paren; | |
1839 | int next_opindex; | |
1840 | struct ppc_fixup fixups[MAX_INSN_FIXUPS]; | |
1841 | int fc; | |
1842 | char *f; | |
1843 | int i; | |
1844 | #ifdef OBJ_ELF | |
1845 | bfd_reloc_code_real_type reloc; | |
1846 | #endif | |
1847 | ||
1848 | /* Get the opcode. */ | |
3882b010 | 1849 | for (s = str; *s != '\0' && ! ISSPACE (*s); s++) |
252b5132 RH |
1850 | ; |
1851 | if (*s != '\0') | |
1852 | *s++ = '\0'; | |
1853 | ||
1854 | /* Look up the opcode in the hash table. */ | |
1855 | opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str); | |
1856 | if (opcode == (const struct powerpc_opcode *) NULL) | |
1857 | { | |
1858 | const struct powerpc_macro *macro; | |
1859 | ||
1860 | macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str); | |
1861 | if (macro == (const struct powerpc_macro *) NULL) | |
1862 | as_bad (_("Unrecognized opcode: `%s'"), str); | |
1863 | else | |
1864 | ppc_macro (s, macro); | |
1865 | ||
1866 | return; | |
1867 | } | |
1868 | ||
1869 | insn = opcode->opcode; | |
1870 | ||
1871 | str = s; | |
3882b010 | 1872 | while (ISSPACE (*str)) |
252b5132 RH |
1873 | ++str; |
1874 | ||
1875 | /* PowerPC operands are just expressions. The only real issue is | |
1876 | that a few operand types are optional. All cases which might use | |
1877 | an optional operand separate the operands only with commas (in | |
1878 | some cases parentheses are used, as in ``lwz 1,0(1)'' but such | |
1879 | cases never have optional operands). There is never more than | |
1880 | one optional operand for an instruction. So, before we start | |
1881 | seriously parsing the operands, we check to see if we have an | |
1882 | optional operand, and, if we do, we count the number of commas to | |
1883 | see whether the operand should be omitted. */ | |
1884 | skip_optional = 0; | |
1885 | for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++) | |
1886 | { | |
1887 | const struct powerpc_operand *operand; | |
1888 | ||
1889 | operand = &powerpc_operands[*opindex_ptr]; | |
1890 | if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0) | |
1891 | { | |
1892 | unsigned int opcount; | |
1893 | ||
1894 | /* There is an optional operand. Count the number of | |
1895 | commas in the input line. */ | |
1896 | if (*str == '\0') | |
1897 | opcount = 0; | |
1898 | else | |
1899 | { | |
1900 | opcount = 1; | |
1901 | s = str; | |
1902 | while ((s = strchr (s, ',')) != (char *) NULL) | |
1903 | { | |
1904 | ++opcount; | |
1905 | ++s; | |
1906 | } | |
1907 | } | |
1908 | ||
1909 | /* If there are fewer operands in the line then are called | |
1910 | for by the instruction, we want to skip the optional | |
1911 | operand. */ | |
1912 | if (opcount < strlen (opcode->operands)) | |
1913 | skip_optional = 1; | |
1914 | ||
1915 | break; | |
1916 | } | |
1917 | } | |
1918 | ||
1919 | /* Gather the operands. */ | |
1920 | need_paren = 0; | |
1921 | next_opindex = 0; | |
1922 | fc = 0; | |
1923 | for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++) | |
1924 | { | |
1925 | const struct powerpc_operand *operand; | |
1926 | const char *errmsg; | |
1927 | char *hold; | |
1928 | expressionS ex; | |
1929 | char endc; | |
1930 | ||
1931 | if (next_opindex == 0) | |
1932 | operand = &powerpc_operands[*opindex_ptr]; | |
1933 | else | |
1934 | { | |
1935 | operand = &powerpc_operands[next_opindex]; | |
1936 | next_opindex = 0; | |
1937 | } | |
1938 | ||
1939 | errmsg = NULL; | |
1940 | ||
1941 | /* If this is a fake operand, then we do not expect anything | |
1942 | from the input. */ | |
1943 | if ((operand->flags & PPC_OPERAND_FAKE) != 0) | |
1944 | { | |
802a735e | 1945 | insn = (*operand->insert) (insn, 0L, ppc_cpu | ppc_size, &errmsg); |
252b5132 RH |
1946 | if (errmsg != (const char *) NULL) |
1947 | as_bad (errmsg); | |
1948 | continue; | |
1949 | } | |
1950 | ||
1951 | /* If this is an optional operand, and we are skipping it, just | |
1952 | insert a zero. */ | |
1953 | if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0 | |
1954 | && skip_optional) | |
1955 | { | |
1956 | if (operand->insert) | |
1957 | { | |
802a735e | 1958 | insn = (*operand->insert) (insn, 0L, ppc_cpu | ppc_size, &errmsg); |
252b5132 RH |
1959 | if (errmsg != (const char *) NULL) |
1960 | as_bad (errmsg); | |
1961 | } | |
1962 | if ((operand->flags & PPC_OPERAND_NEXT) != 0) | |
1963 | next_opindex = *opindex_ptr + 1; | |
1964 | continue; | |
1965 | } | |
1966 | ||
1967 | /* Gather the operand. */ | |
1968 | hold = input_line_pointer; | |
1969 | input_line_pointer = str; | |
1970 | ||
1971 | #ifdef TE_PE | |
81d4177b | 1972 | if (*input_line_pointer == '[') |
252b5132 RH |
1973 | { |
1974 | /* We are expecting something like the second argument here: | |
99a814a1 AM |
1975 | * |
1976 | * lwz r4,[toc].GS.0.static_int(rtoc) | |
1977 | * ^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
1978 | * The argument following the `]' must be a symbol name, and the | |
1979 | * register must be the toc register: 'rtoc' or '2' | |
1980 | * | |
1981 | * The effect is to 0 as the displacement field | |
1982 | * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or | |
1983 | * the appropriate variation) reloc against it based on the symbol. | |
1984 | * The linker will build the toc, and insert the resolved toc offset. | |
1985 | * | |
1986 | * Note: | |
1987 | * o The size of the toc entry is currently assumed to be | |
1988 | * 32 bits. This should not be assumed to be a hard coded | |
1989 | * number. | |
1990 | * o In an effort to cope with a change from 32 to 64 bits, | |
1991 | * there are also toc entries that are specified to be | |
1992 | * either 32 or 64 bits: | |
1993 | * lwz r4,[toc32].GS.0.static_int(rtoc) | |
1994 | * lwz r4,[toc64].GS.0.static_int(rtoc) | |
1995 | * These demand toc entries of the specified size, and the | |
1996 | * instruction probably requires it. | |
1997 | */ | |
252b5132 RH |
1998 | |
1999 | int valid_toc; | |
2000 | enum toc_size_qualifier toc_kind; | |
2001 | bfd_reloc_code_real_type toc_reloc; | |
2002 | ||
99a814a1 AM |
2003 | /* Go parse off the [tocXX] part. */ |
2004 | valid_toc = parse_toc_entry (&toc_kind); | |
252b5132 | 2005 | |
81d4177b | 2006 | if (!valid_toc) |
252b5132 | 2007 | { |
99a814a1 AM |
2008 | /* Note: message has already been issued. |
2009 | FIXME: what sort of recovery should we do? | |
2010 | demand_rest_of_line (); return; ? */ | |
252b5132 RH |
2011 | } |
2012 | ||
99a814a1 AM |
2013 | /* Now get the symbol following the ']'. */ |
2014 | expression (&ex); | |
252b5132 RH |
2015 | |
2016 | switch (toc_kind) | |
2017 | { | |
2018 | case default_toc: | |
99a814a1 AM |
2019 | /* In this case, we may not have seen the symbol yet, |
2020 | since it is allowed to appear on a .extern or .globl | |
2021 | or just be a label in the .data section. */ | |
252b5132 RH |
2022 | toc_reloc = BFD_RELOC_PPC_TOC16; |
2023 | break; | |
2024 | case data_in_toc: | |
99a814a1 AM |
2025 | /* 1. The symbol must be defined and either in the toc |
2026 | section, or a global. | |
2027 | 2. The reloc generated must have the TOCDEFN flag set | |
2028 | in upper bit mess of the reloc type. | |
2029 | FIXME: It's a little confusing what the tocv | |
2030 | qualifier can be used for. At the very least, I've | |
2031 | seen three uses, only one of which I'm sure I can | |
2032 | explain. */ | |
81d4177b KH |
2033 | if (ex.X_op == O_symbol) |
2034 | { | |
252b5132 | 2035 | assert (ex.X_add_symbol != NULL); |
fed9b18a ILT |
2036 | if (symbol_get_bfdsym (ex.X_add_symbol)->section |
2037 | != tocdata_section) | |
252b5132 | 2038 | { |
99a814a1 | 2039 | as_bad (_("[tocv] symbol is not a toc symbol")); |
252b5132 RH |
2040 | } |
2041 | } | |
2042 | ||
2043 | toc_reloc = BFD_RELOC_PPC_TOC16; | |
2044 | break; | |
2045 | case must_be_32: | |
99a814a1 AM |
2046 | /* FIXME: these next two specifically specify 32/64 bit |
2047 | toc entries. We don't support them today. Is this | |
2048 | the right way to say that? */ | |
252b5132 RH |
2049 | toc_reloc = BFD_RELOC_UNUSED; |
2050 | as_bad (_("Unimplemented toc32 expression modifier")); | |
2051 | break; | |
2052 | case must_be_64: | |
99a814a1 | 2053 | /* FIXME: see above. */ |
252b5132 RH |
2054 | toc_reloc = BFD_RELOC_UNUSED; |
2055 | as_bad (_("Unimplemented toc64 expression modifier")); | |
2056 | break; | |
2057 | default: | |
bc805888 | 2058 | fprintf (stderr, |
99a814a1 AM |
2059 | _("Unexpected return value [%d] from parse_toc_entry!\n"), |
2060 | toc_kind); | |
bc805888 | 2061 | abort (); |
252b5132 RH |
2062 | break; |
2063 | } | |
2064 | ||
2065 | /* We need to generate a fixup for this expression. */ | |
2066 | if (fc >= MAX_INSN_FIXUPS) | |
2067 | as_fatal (_("too many fixups")); | |
2068 | ||
2069 | fixups[fc].reloc = toc_reloc; | |
2070 | fixups[fc].exp = ex; | |
2071 | fixups[fc].opindex = *opindex_ptr; | |
2072 | ++fc; | |
2073 | ||
99a814a1 AM |
2074 | /* Ok. We've set up the fixup for the instruction. Now make it |
2075 | look like the constant 0 was found here. */ | |
252b5132 RH |
2076 | ex.X_unsigned = 1; |
2077 | ex.X_op = O_constant; | |
2078 | ex.X_add_number = 0; | |
2079 | ex.X_add_symbol = NULL; | |
2080 | ex.X_op_symbol = NULL; | |
2081 | } | |
2082 | ||
2083 | else | |
2084 | #endif /* TE_PE */ | |
2085 | { | |
2086 | if (! register_name (&ex)) | |
2087 | { | |
2088 | if ((operand->flags & PPC_OPERAND_CR) != 0) | |
2089 | cr_operand = true; | |
2090 | expression (&ex); | |
2091 | cr_operand = false; | |
2092 | } | |
2093 | } | |
2094 | ||
2095 | str = input_line_pointer; | |
2096 | input_line_pointer = hold; | |
2097 | ||
2098 | if (ex.X_op == O_illegal) | |
2099 | as_bad (_("illegal operand")); | |
2100 | else if (ex.X_op == O_absent) | |
2101 | as_bad (_("missing operand")); | |
2102 | else if (ex.X_op == O_register) | |
2103 | { | |
2104 | insn = ppc_insert_operand (insn, operand, ex.X_add_number, | |
2105 | (char *) NULL, 0); | |
2106 | } | |
2107 | else if (ex.X_op == O_constant) | |
2108 | { | |
2109 | #ifdef OBJ_ELF | |
81d4177b | 2110 | /* Allow @HA, @L, @H on constants. */ |
252b5132 RH |
2111 | char *orig_str = str; |
2112 | ||
2113 | if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED) | |
2114 | switch (reloc) | |
2115 | { | |
2116 | default: | |
2117 | str = orig_str; | |
2118 | break; | |
2119 | ||
2120 | case BFD_RELOC_LO16: | |
2121 | /* X_unsigned is the default, so if the user has done | |
0baf16f2 AM |
2122 | something which cleared it, we always produce a |
2123 | signed value. */ | |
2124 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
252b5132 RH |
2125 | ex.X_add_number &= 0xffff; |
2126 | else | |
0baf16f2 | 2127 | ex.X_add_number = SEX16 (ex.X_add_number); |
252b5132 RH |
2128 | break; |
2129 | ||
2130 | case BFD_RELOC_HI16: | |
0baf16f2 AM |
2131 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) |
2132 | ex.X_add_number = PPC_HI (ex.X_add_number); | |
2133 | else | |
2134 | ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number)); | |
252b5132 RH |
2135 | break; |
2136 | ||
2137 | case BFD_RELOC_HI16_S: | |
0baf16f2 AM |
2138 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) |
2139 | ex.X_add_number = PPC_HA (ex.X_add_number); | |
2140 | else | |
2141 | ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number)); | |
2142 | break; | |
2143 | ||
2144 | #if BFD_DEFAULT_TARGET_SIZE == 64 | |
2145 | case BFD_RELOC_PPC64_HIGHER: | |
2146 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2147 | ex.X_add_number = PPC_HIGHER (ex.X_add_number); | |
2148 | else | |
2149 | ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number)); | |
2150 | break; | |
2151 | ||
2152 | case BFD_RELOC_PPC64_HIGHER_S: | |
2153 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2154 | ex.X_add_number = PPC_HIGHERA (ex.X_add_number); | |
2155 | else | |
2156 | ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number)); | |
252b5132 | 2157 | break; |
0baf16f2 AM |
2158 | |
2159 | case BFD_RELOC_PPC64_HIGHEST: | |
2160 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2161 | ex.X_add_number = PPC_HIGHEST (ex.X_add_number); | |
2162 | else | |
2163 | ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number)); | |
2164 | break; | |
2165 | ||
2166 | case BFD_RELOC_PPC64_HIGHEST_S: | |
2167 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2168 | ex.X_add_number = PPC_HIGHESTA (ex.X_add_number); | |
2169 | else | |
2170 | ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number)); | |
2171 | break; | |
2172 | #endif /* BFD_DEFAULT_TARGET_SIZE == 64 */ | |
252b5132 | 2173 | } |
0baf16f2 | 2174 | #endif /* OBJ_ELF */ |
252b5132 RH |
2175 | insn = ppc_insert_operand (insn, operand, ex.X_add_number, |
2176 | (char *) NULL, 0); | |
2177 | } | |
2178 | #ifdef OBJ_ELF | |
2179 | else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED) | |
2180 | { | |
99a814a1 AM |
2181 | /* For the absolute forms of branches, convert the PC |
2182 | relative form back into the absolute. */ | |
252b5132 RH |
2183 | if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0) |
2184 | { | |
2185 | switch (reloc) | |
2186 | { | |
2187 | case BFD_RELOC_PPC_B26: | |
2188 | reloc = BFD_RELOC_PPC_BA26; | |
2189 | break; | |
2190 | case BFD_RELOC_PPC_B16: | |
2191 | reloc = BFD_RELOC_PPC_BA16; | |
2192 | break; | |
2193 | case BFD_RELOC_PPC_B16_BRTAKEN: | |
2194 | reloc = BFD_RELOC_PPC_BA16_BRTAKEN; | |
2195 | break; | |
2196 | case BFD_RELOC_PPC_B16_BRNTAKEN: | |
2197 | reloc = BFD_RELOC_PPC_BA16_BRNTAKEN; | |
2198 | break; | |
2199 | default: | |
2200 | break; | |
2201 | } | |
2202 | } | |
2203 | ||
0baf16f2 | 2204 | if (BFD_DEFAULT_TARGET_SIZE == 64 |
9c7977b3 | 2205 | && ppc_size == PPC_OPCODE_64 |
0baf16f2 AM |
2206 | && (operand->flags & PPC_OPERAND_DS) != 0) |
2207 | { | |
2208 | switch (reloc) | |
2209 | { | |
2210 | case BFD_RELOC_16: | |
2211 | reloc = BFD_RELOC_PPC64_ADDR16_DS; | |
2212 | break; | |
2213 | case BFD_RELOC_LO16: | |
2214 | reloc = BFD_RELOC_PPC64_ADDR16_LO_DS; | |
2215 | break; | |
2216 | case BFD_RELOC_16_GOTOFF: | |
2217 | reloc = BFD_RELOC_PPC64_GOT16_DS; | |
2218 | break; | |
2219 | case BFD_RELOC_LO16_GOTOFF: | |
2220 | reloc = BFD_RELOC_PPC64_GOT16_LO_DS; | |
2221 | break; | |
2222 | case BFD_RELOC_LO16_PLTOFF: | |
2223 | reloc = BFD_RELOC_PPC64_PLT16_LO_DS; | |
2224 | break; | |
2225 | case BFD_RELOC_32_BASEREL: | |
2226 | reloc = BFD_RELOC_PPC64_SECTOFF_DS; | |
2227 | break; | |
2228 | case BFD_RELOC_LO16_BASEREL: | |
2229 | reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS; | |
2230 | break; | |
2231 | case BFD_RELOC_PPC_TOC16: | |
2232 | reloc = BFD_RELOC_PPC64_TOC16_DS; | |
2233 | break; | |
2234 | case BFD_RELOC_PPC64_TOC16_LO: | |
2235 | reloc = BFD_RELOC_PPC64_TOC16_LO_DS; | |
2236 | break; | |
2237 | case BFD_RELOC_PPC64_PLTGOT16: | |
2238 | reloc = BFD_RELOC_PPC64_PLTGOT16_DS; | |
2239 | break; | |
2240 | case BFD_RELOC_PPC64_PLTGOT16_LO: | |
2241 | reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS; | |
2242 | break; | |
2243 | default: | |
2244 | as_bad (_("unsupported relocation for DS offset field")); | |
2245 | break; | |
2246 | } | |
2247 | } | |
2248 | ||
252b5132 RH |
2249 | /* We need to generate a fixup for this expression. */ |
2250 | if (fc >= MAX_INSN_FIXUPS) | |
2251 | as_fatal (_("too many fixups")); | |
2252 | fixups[fc].exp = ex; | |
2253 | fixups[fc].opindex = 0; | |
2254 | fixups[fc].reloc = reloc; | |
2255 | ++fc; | |
2256 | } | |
2257 | #endif /* OBJ_ELF */ | |
2258 | ||
2259 | else | |
2260 | { | |
2261 | /* We need to generate a fixup for this expression. */ | |
2262 | if (fc >= MAX_INSN_FIXUPS) | |
2263 | as_fatal (_("too many fixups")); | |
2264 | fixups[fc].exp = ex; | |
2265 | fixups[fc].opindex = *opindex_ptr; | |
2266 | fixups[fc].reloc = BFD_RELOC_UNUSED; | |
2267 | ++fc; | |
2268 | } | |
2269 | ||
2270 | if (need_paren) | |
2271 | { | |
2272 | endc = ')'; | |
2273 | need_paren = 0; | |
2274 | } | |
2275 | else if ((operand->flags & PPC_OPERAND_PARENS) != 0) | |
2276 | { | |
2277 | endc = '('; | |
2278 | need_paren = 1; | |
2279 | } | |
2280 | else | |
2281 | endc = ','; | |
2282 | ||
2283 | /* The call to expression should have advanced str past any | |
2284 | whitespace. */ | |
2285 | if (*str != endc | |
2286 | && (endc != ',' || *str != '\0')) | |
2287 | { | |
2288 | as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc); | |
2289 | break; | |
2290 | } | |
2291 | ||
2292 | if (*str != '\0') | |
2293 | ++str; | |
2294 | } | |
2295 | ||
3882b010 | 2296 | while (ISSPACE (*str)) |
252b5132 RH |
2297 | ++str; |
2298 | ||
2299 | if (*str != '\0') | |
2300 | as_bad (_("junk at end of line: `%s'"), str); | |
2301 | ||
2302 | /* Write out the instruction. */ | |
2303 | f = frag_more (4); | |
2304 | md_number_to_chars (f, insn, 4); | |
2305 | ||
5d6f4f16 GK |
2306 | #ifdef OBJ_ELF |
2307 | dwarf2_emit_insn (4); | |
2308 | #endif | |
2309 | ||
252b5132 RH |
2310 | /* Create any fixups. At this point we do not use a |
2311 | bfd_reloc_code_real_type, but instead just use the | |
2312 | BFD_RELOC_UNUSED plus the operand index. This lets us easily | |
2313 | handle fixups for any operand type, although that is admittedly | |
2314 | not a very exciting feature. We pick a BFD reloc type in | |
94f592af | 2315 | md_apply_fix3. */ |
252b5132 RH |
2316 | for (i = 0; i < fc; i++) |
2317 | { | |
2318 | const struct powerpc_operand *operand; | |
2319 | ||
2320 | operand = &powerpc_operands[fixups[i].opindex]; | |
2321 | if (fixups[i].reloc != BFD_RELOC_UNUSED) | |
2322 | { | |
99a814a1 | 2323 | reloc_howto_type *reloc_howto; |
252b5132 RH |
2324 | int size; |
2325 | int offset; | |
2326 | fixS *fixP; | |
2327 | ||
99a814a1 | 2328 | reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc); |
252b5132 RH |
2329 | if (!reloc_howto) |
2330 | abort (); | |
2331 | ||
2332 | size = bfd_get_reloc_size (reloc_howto); | |
2333 | offset = target_big_endian ? (4 - size) : 0; | |
2334 | ||
2335 | if (size < 1 || size > 4) | |
bc805888 | 2336 | abort (); |
252b5132 | 2337 | |
99a814a1 AM |
2338 | fixP = fix_new_exp (frag_now, |
2339 | f - frag_now->fr_literal + offset, | |
2340 | size, | |
2341 | &fixups[i].exp, | |
2342 | reloc_howto->pc_relative, | |
252b5132 RH |
2343 | fixups[i].reloc); |
2344 | ||
2345 | /* Turn off complaints that the addend is too large for things like | |
2346 | foo+100000@ha. */ | |
2347 | switch (fixups[i].reloc) | |
2348 | { | |
2349 | case BFD_RELOC_16_GOTOFF: | |
2350 | case BFD_RELOC_PPC_TOC16: | |
2351 | case BFD_RELOC_LO16: | |
2352 | case BFD_RELOC_HI16: | |
2353 | case BFD_RELOC_HI16_S: | |
0baf16f2 AM |
2354 | #ifdef OBJ_ELF |
2355 | #if BFD_DEFAULT_TARGET_SIZE == 64 | |
2356 | case BFD_RELOC_PPC64_HIGHER: | |
2357 | case BFD_RELOC_PPC64_HIGHER_S: | |
2358 | case BFD_RELOC_PPC64_HIGHEST: | |
2359 | case BFD_RELOC_PPC64_HIGHEST_S: | |
2360 | #endif | |
2361 | #endif | |
252b5132 RH |
2362 | fixP->fx_no_overflow = 1; |
2363 | break; | |
2364 | default: | |
2365 | break; | |
2366 | } | |
2367 | } | |
2368 | else | |
99a814a1 AM |
2369 | fix_new_exp (frag_now, |
2370 | f - frag_now->fr_literal, | |
2371 | 4, | |
252b5132 RH |
2372 | &fixups[i].exp, |
2373 | (operand->flags & PPC_OPERAND_RELATIVE) != 0, | |
2374 | ((bfd_reloc_code_real_type) | |
99a814a1 | 2375 | (fixups[i].opindex + (int) BFD_RELOC_UNUSED))); |
252b5132 RH |
2376 | } |
2377 | } | |
2378 | ||
2379 | /* Handle a macro. Gather all the operands, transform them as | |
2380 | described by the macro, and call md_assemble recursively. All the | |
2381 | operands are separated by commas; we don't accept parentheses | |
2382 | around operands here. */ | |
2383 | ||
2384 | static void | |
2385 | ppc_macro (str, macro) | |
2386 | char *str; | |
2387 | const struct powerpc_macro *macro; | |
2388 | { | |
2389 | char *operands[10]; | |
2390 | unsigned int count; | |
2391 | char *s; | |
2392 | unsigned int len; | |
2393 | const char *format; | |
2394 | int arg; | |
2395 | char *send; | |
2396 | char *complete; | |
2397 | ||
2398 | /* Gather the users operands into the operands array. */ | |
2399 | count = 0; | |
2400 | s = str; | |
2401 | while (1) | |
2402 | { | |
2403 | if (count >= sizeof operands / sizeof operands[0]) | |
2404 | break; | |
2405 | operands[count++] = s; | |
2406 | s = strchr (s, ','); | |
2407 | if (s == (char *) NULL) | |
2408 | break; | |
2409 | *s++ = '\0'; | |
81d4177b | 2410 | } |
252b5132 RH |
2411 | |
2412 | if (count != macro->operands) | |
2413 | { | |
2414 | as_bad (_("wrong number of operands")); | |
2415 | return; | |
2416 | } | |
2417 | ||
2418 | /* Work out how large the string must be (the size is unbounded | |
2419 | because it includes user input). */ | |
2420 | len = 0; | |
2421 | format = macro->format; | |
2422 | while (*format != '\0') | |
2423 | { | |
2424 | if (*format != '%') | |
2425 | { | |
2426 | ++len; | |
2427 | ++format; | |
2428 | } | |
2429 | else | |
2430 | { | |
2431 | arg = strtol (format + 1, &send, 10); | |
2432 | know (send != format && arg >= 0 && arg < count); | |
2433 | len += strlen (operands[arg]); | |
2434 | format = send; | |
2435 | } | |
2436 | } | |
2437 | ||
2438 | /* Put the string together. */ | |
2439 | complete = s = (char *) alloca (len + 1); | |
2440 | format = macro->format; | |
2441 | while (*format != '\0') | |
2442 | { | |
2443 | if (*format != '%') | |
2444 | *s++ = *format++; | |
2445 | else | |
2446 | { | |
2447 | arg = strtol (format + 1, &send, 10); | |
2448 | strcpy (s, operands[arg]); | |
2449 | s += strlen (s); | |
2450 | format = send; | |
2451 | } | |
2452 | } | |
2453 | *s = '\0'; | |
2454 | ||
2455 | /* Assemble the constructed instruction. */ | |
2456 | md_assemble (complete); | |
81d4177b | 2457 | } |
252b5132 RH |
2458 | \f |
2459 | #ifdef OBJ_ELF | |
99a814a1 | 2460 | /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */ |
252b5132 RH |
2461 | |
2462 | int | |
2463 | ppc_section_letter (letter, ptr_msg) | |
2464 | int letter; | |
2465 | char **ptr_msg; | |
2466 | { | |
2467 | if (letter == 'e') | |
2468 | return SHF_EXCLUDE; | |
2469 | ||
9469ddf0 | 2470 | *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S in string"); |
252b5132 RH |
2471 | return 0; |
2472 | } | |
2473 | ||
2474 | int | |
9de8d8f1 RH |
2475 | ppc_section_word (str, len) |
2476 | char *str; | |
2477 | size_t len; | |
252b5132 | 2478 | { |
9de8d8f1 RH |
2479 | if (len == 7 && strncmp (str, "exclude", 7) == 0) |
2480 | return SHF_EXCLUDE; | |
252b5132 | 2481 | |
9de8d8f1 | 2482 | return -1; |
252b5132 RH |
2483 | } |
2484 | ||
2485 | int | |
9de8d8f1 RH |
2486 | ppc_section_type (str, len) |
2487 | char *str; | |
2488 | size_t len; | |
252b5132 | 2489 | { |
9de8d8f1 RH |
2490 | if (len == 7 && strncmp (str, "ordered", 7) == 0) |
2491 | return SHT_ORDERED; | |
252b5132 | 2492 | |
9de8d8f1 | 2493 | return -1; |
252b5132 RH |
2494 | } |
2495 | ||
2496 | int | |
2497 | ppc_section_flags (flags, attr, type) | |
2498 | int flags; | |
2499 | int attr; | |
2500 | int type; | |
2501 | { | |
2502 | if (type == SHT_ORDERED) | |
2503 | flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES; | |
2504 | ||
2505 | if (attr & SHF_EXCLUDE) | |
2506 | flags |= SEC_EXCLUDE; | |
2507 | ||
2508 | return flags; | |
2509 | } | |
2510 | #endif /* OBJ_ELF */ | |
2511 | ||
2512 | \f | |
2513 | /* Pseudo-op handling. */ | |
2514 | ||
2515 | /* The .byte pseudo-op. This is similar to the normal .byte | |
2516 | pseudo-op, but it can also take a single ASCII string. */ | |
2517 | ||
2518 | static void | |
2519 | ppc_byte (ignore) | |
92161534 | 2520 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2521 | { |
2522 | if (*input_line_pointer != '\"') | |
2523 | { | |
2524 | cons (1); | |
2525 | return; | |
2526 | } | |
2527 | ||
2528 | /* Gather characters. A real double quote is doubled. Unusual | |
2529 | characters are not permitted. */ | |
2530 | ++input_line_pointer; | |
2531 | while (1) | |
2532 | { | |
2533 | char c; | |
2534 | ||
2535 | c = *input_line_pointer++; | |
2536 | ||
2537 | if (c == '\"') | |
2538 | { | |
2539 | if (*input_line_pointer != '\"') | |
2540 | break; | |
2541 | ++input_line_pointer; | |
2542 | } | |
2543 | ||
2544 | FRAG_APPEND_1_CHAR (c); | |
2545 | } | |
2546 | ||
2547 | demand_empty_rest_of_line (); | |
2548 | } | |
2549 | \f | |
2550 | #ifdef OBJ_XCOFF | |
2551 | ||
2552 | /* XCOFF specific pseudo-op handling. */ | |
2553 | ||
2554 | /* This is set if we are creating a .stabx symbol, since we don't want | |
2555 | to handle symbol suffixes for such symbols. */ | |
2556 | static boolean ppc_stab_symbol; | |
2557 | ||
2558 | /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common | |
2559 | symbols in the .bss segment as though they were local common | |
1ad63b2f TR |
2560 | symbols, and uses a different smclas. The native Aix 4.3.3 assember |
2561 | aligns .comm and .lcomm to 4 bytes. */ | |
252b5132 RH |
2562 | |
2563 | static void | |
2564 | ppc_comm (lcomm) | |
2565 | int lcomm; | |
2566 | { | |
2567 | asection *current_seg = now_seg; | |
2568 | subsegT current_subseg = now_subseg; | |
2569 | char *name; | |
2570 | char endc; | |
2571 | char *end_name; | |
2572 | offsetT size; | |
2573 | offsetT align; | |
2574 | symbolS *lcomm_sym = NULL; | |
2575 | symbolS *sym; | |
2576 | char *pfrag; | |
2577 | ||
2578 | name = input_line_pointer; | |
2579 | endc = get_symbol_end (); | |
2580 | end_name = input_line_pointer; | |
2581 | *end_name = endc; | |
2582 | ||
2583 | if (*input_line_pointer != ',') | |
2584 | { | |
2585 | as_bad (_("missing size")); | |
2586 | ignore_rest_of_line (); | |
2587 | return; | |
2588 | } | |
2589 | ++input_line_pointer; | |
2590 | ||
2591 | size = get_absolute_expression (); | |
2592 | if (size < 0) | |
2593 | { | |
2594 | as_bad (_("negative size")); | |
2595 | ignore_rest_of_line (); | |
2596 | return; | |
2597 | } | |
2598 | ||
2599 | if (! lcomm) | |
2600 | { | |
2601 | /* The third argument to .comm is the alignment. */ | |
2602 | if (*input_line_pointer != ',') | |
1ad63b2f | 2603 | align = 2; |
252b5132 RH |
2604 | else |
2605 | { | |
2606 | ++input_line_pointer; | |
2607 | align = get_absolute_expression (); | |
2608 | if (align <= 0) | |
2609 | { | |
2610 | as_warn (_("ignoring bad alignment")); | |
1ad63b2f | 2611 | align = 2; |
252b5132 RH |
2612 | } |
2613 | } | |
2614 | } | |
2615 | else | |
2616 | { | |
2617 | char *lcomm_name; | |
2618 | char lcomm_endc; | |
2619 | ||
1ad63b2f | 2620 | if (size <= 4) |
252b5132 RH |
2621 | align = 2; |
2622 | else | |
2623 | align = 3; | |
2624 | ||
2625 | /* The third argument to .lcomm appears to be the real local | |
2626 | common symbol to create. References to the symbol named in | |
2627 | the first argument are turned into references to the third | |
2628 | argument. */ | |
2629 | if (*input_line_pointer != ',') | |
2630 | { | |
2631 | as_bad (_("missing real symbol name")); | |
2632 | ignore_rest_of_line (); | |
2633 | return; | |
2634 | } | |
2635 | ++input_line_pointer; | |
2636 | ||
2637 | lcomm_name = input_line_pointer; | |
2638 | lcomm_endc = get_symbol_end (); | |
81d4177b | 2639 | |
252b5132 RH |
2640 | lcomm_sym = symbol_find_or_make (lcomm_name); |
2641 | ||
2642 | *input_line_pointer = lcomm_endc; | |
2643 | } | |
2644 | ||
2645 | *end_name = '\0'; | |
2646 | sym = symbol_find_or_make (name); | |
2647 | *end_name = endc; | |
2648 | ||
2649 | if (S_IS_DEFINED (sym) | |
2650 | || S_GET_VALUE (sym) != 0) | |
2651 | { | |
2652 | as_bad (_("attempt to redefine symbol")); | |
2653 | ignore_rest_of_line (); | |
2654 | return; | |
2655 | } | |
81d4177b | 2656 | |
252b5132 | 2657 | record_alignment (bss_section, align); |
81d4177b | 2658 | |
252b5132 RH |
2659 | if (! lcomm |
2660 | || ! S_IS_DEFINED (lcomm_sym)) | |
2661 | { | |
2662 | symbolS *def_sym; | |
2663 | offsetT def_size; | |
2664 | ||
2665 | if (! lcomm) | |
2666 | { | |
2667 | def_sym = sym; | |
2668 | def_size = size; | |
2669 | S_SET_EXTERNAL (sym); | |
2670 | } | |
2671 | else | |
2672 | { | |
809ffe0d | 2673 | symbol_get_tc (lcomm_sym)->output = 1; |
252b5132 RH |
2674 | def_sym = lcomm_sym; |
2675 | def_size = 0; | |
2676 | } | |
2677 | ||
2678 | subseg_set (bss_section, 1); | |
2679 | frag_align (align, 0, 0); | |
81d4177b | 2680 | |
809ffe0d | 2681 | symbol_set_frag (def_sym, frag_now); |
252b5132 RH |
2682 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym, |
2683 | def_size, (char *) NULL); | |
2684 | *pfrag = 0; | |
2685 | S_SET_SEGMENT (def_sym, bss_section); | |
809ffe0d | 2686 | symbol_get_tc (def_sym)->align = align; |
252b5132 RH |
2687 | } |
2688 | else if (lcomm) | |
2689 | { | |
2690 | /* Align the size of lcomm_sym. */ | |
809ffe0d ILT |
2691 | symbol_get_frag (lcomm_sym)->fr_offset = |
2692 | ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1) | |
252b5132 | 2693 | &~ ((1 << align) - 1)); |
809ffe0d ILT |
2694 | if (align > symbol_get_tc (lcomm_sym)->align) |
2695 | symbol_get_tc (lcomm_sym)->align = align; | |
252b5132 RH |
2696 | } |
2697 | ||
2698 | if (lcomm) | |
2699 | { | |
2700 | /* Make sym an offset from lcomm_sym. */ | |
2701 | S_SET_SEGMENT (sym, bss_section); | |
809ffe0d ILT |
2702 | symbol_set_frag (sym, symbol_get_frag (lcomm_sym)); |
2703 | S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset); | |
2704 | symbol_get_frag (lcomm_sym)->fr_offset += size; | |
252b5132 RH |
2705 | } |
2706 | ||
2707 | subseg_set (current_seg, current_subseg); | |
2708 | ||
2709 | demand_empty_rest_of_line (); | |
2710 | } | |
2711 | ||
2712 | /* The .csect pseudo-op. This switches us into a different | |
2713 | subsegment. The first argument is a symbol whose value is the | |
2714 | start of the .csect. In COFF, csect symbols get special aux | |
2715 | entries defined by the x_csect field of union internal_auxent. The | |
2716 | optional second argument is the alignment (the default is 2). */ | |
2717 | ||
2718 | static void | |
2719 | ppc_csect (ignore) | |
5480ccf3 | 2720 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2721 | { |
2722 | char *name; | |
2723 | char endc; | |
2724 | symbolS *sym; | |
2725 | ||
2726 | name = input_line_pointer; | |
2727 | endc = get_symbol_end (); | |
81d4177b | 2728 | |
252b5132 RH |
2729 | sym = symbol_find_or_make (name); |
2730 | ||
2731 | *input_line_pointer = endc; | |
2732 | ||
2733 | if (S_GET_NAME (sym)[0] == '\0') | |
2734 | { | |
2735 | /* An unnamed csect is assumed to be [PR]. */ | |
809ffe0d | 2736 | symbol_get_tc (sym)->class = XMC_PR; |
252b5132 RH |
2737 | } |
2738 | ||
2739 | ppc_change_csect (sym); | |
2740 | ||
2741 | if (*input_line_pointer == ',') | |
2742 | { | |
2743 | ++input_line_pointer; | |
809ffe0d | 2744 | symbol_get_tc (sym)->align = get_absolute_expression (); |
252b5132 RH |
2745 | } |
2746 | ||
2747 | demand_empty_rest_of_line (); | |
2748 | } | |
2749 | ||
2750 | /* Change to a different csect. */ | |
2751 | ||
2752 | static void | |
2753 | ppc_change_csect (sym) | |
2754 | symbolS *sym; | |
2755 | { | |
2756 | if (S_IS_DEFINED (sym)) | |
809ffe0d | 2757 | subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg); |
252b5132 RH |
2758 | else |
2759 | { | |
2760 | symbolS **list_ptr; | |
2761 | int after_toc; | |
2762 | int hold_chunksize; | |
2763 | symbolS *list; | |
2764 | ||
2765 | /* This is a new csect. We need to look at the symbol class to | |
2766 | figure out whether it should go in the text section or the | |
2767 | data section. */ | |
2768 | after_toc = 0; | |
809ffe0d | 2769 | switch (symbol_get_tc (sym)->class) |
252b5132 RH |
2770 | { |
2771 | case XMC_PR: | |
2772 | case XMC_RO: | |
2773 | case XMC_DB: | |
2774 | case XMC_GL: | |
2775 | case XMC_XO: | |
2776 | case XMC_SV: | |
2777 | case XMC_TI: | |
2778 | case XMC_TB: | |
2779 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 2780 | symbol_get_tc (sym)->subseg = ppc_text_subsegment; |
252b5132 RH |
2781 | ++ppc_text_subsegment; |
2782 | list_ptr = &ppc_text_csects; | |
2783 | break; | |
2784 | case XMC_RW: | |
2785 | case XMC_TC0: | |
2786 | case XMC_TC: | |
2787 | case XMC_DS: | |
2788 | case XMC_UA: | |
2789 | case XMC_BS: | |
2790 | case XMC_UC: | |
2791 | if (ppc_toc_csect != NULL | |
809ffe0d ILT |
2792 | && (symbol_get_tc (ppc_toc_csect)->subseg + 1 |
2793 | == ppc_data_subsegment)) | |
252b5132 RH |
2794 | after_toc = 1; |
2795 | S_SET_SEGMENT (sym, data_section); | |
809ffe0d | 2796 | symbol_get_tc (sym)->subseg = ppc_data_subsegment; |
252b5132 RH |
2797 | ++ppc_data_subsegment; |
2798 | list_ptr = &ppc_data_csects; | |
2799 | break; | |
2800 | default: | |
2801 | abort (); | |
2802 | } | |
2803 | ||
2804 | /* We set the obstack chunk size to a small value before | |
99a814a1 AM |
2805 | changing subsegments, so that we don't use a lot of memory |
2806 | space for what may be a small section. */ | |
252b5132 RH |
2807 | hold_chunksize = chunksize; |
2808 | chunksize = 64; | |
2809 | ||
809ffe0d ILT |
2810 | subseg_new (segment_name (S_GET_SEGMENT (sym)), |
2811 | symbol_get_tc (sym)->subseg); | |
252b5132 RH |
2812 | |
2813 | chunksize = hold_chunksize; | |
2814 | ||
2815 | if (after_toc) | |
2816 | ppc_after_toc_frag = frag_now; | |
2817 | ||
809ffe0d | 2818 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
2819 | S_SET_VALUE (sym, (valueT) frag_now_fix ()); |
2820 | ||
7f6d05e8 | 2821 | symbol_get_tc (sym)->align = (ppc_xcoff64) ? 3 : 2; |
809ffe0d ILT |
2822 | symbol_get_tc (sym)->output = 1; |
2823 | symbol_get_tc (sym)->within = sym; | |
81d4177b | 2824 | |
252b5132 | 2825 | for (list = *list_ptr; |
809ffe0d ILT |
2826 | symbol_get_tc (list)->next != (symbolS *) NULL; |
2827 | list = symbol_get_tc (list)->next) | |
252b5132 | 2828 | ; |
809ffe0d | 2829 | symbol_get_tc (list)->next = sym; |
81d4177b | 2830 | |
252b5132 | 2831 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); |
809ffe0d ILT |
2832 | symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP, |
2833 | &symbol_lastP); | |
252b5132 RH |
2834 | } |
2835 | ||
2836 | ppc_current_csect = sym; | |
2837 | } | |
2838 | ||
2839 | /* This function handles the .text and .data pseudo-ops. These | |
2840 | pseudo-ops aren't really used by XCOFF; we implement them for the | |
2841 | convenience of people who aren't used to XCOFF. */ | |
2842 | ||
2843 | static void | |
2844 | ppc_section (type) | |
2845 | int type; | |
2846 | { | |
2847 | const char *name; | |
2848 | symbolS *sym; | |
2849 | ||
2850 | if (type == 't') | |
2851 | name = ".text[PR]"; | |
2852 | else if (type == 'd') | |
2853 | name = ".data[RW]"; | |
2854 | else | |
2855 | abort (); | |
2856 | ||
2857 | sym = symbol_find_or_make (name); | |
2858 | ||
2859 | ppc_change_csect (sym); | |
2860 | ||
2861 | demand_empty_rest_of_line (); | |
2862 | } | |
2863 | ||
2864 | /* This function handles the .section pseudo-op. This is mostly to | |
2865 | give an error, since XCOFF only supports .text, .data and .bss, but | |
2866 | we do permit the user to name the text or data section. */ | |
2867 | ||
2868 | static void | |
2869 | ppc_named_section (ignore) | |
5480ccf3 | 2870 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2871 | { |
2872 | char *user_name; | |
2873 | const char *real_name; | |
2874 | char c; | |
2875 | symbolS *sym; | |
2876 | ||
2877 | user_name = input_line_pointer; | |
2878 | c = get_symbol_end (); | |
2879 | ||
2880 | if (strcmp (user_name, ".text") == 0) | |
2881 | real_name = ".text[PR]"; | |
2882 | else if (strcmp (user_name, ".data") == 0) | |
2883 | real_name = ".data[RW]"; | |
2884 | else | |
2885 | { | |
2886 | as_bad (_("The XCOFF file format does not support arbitrary sections")); | |
2887 | *input_line_pointer = c; | |
2888 | ignore_rest_of_line (); | |
2889 | return; | |
2890 | } | |
2891 | ||
2892 | *input_line_pointer = c; | |
2893 | ||
2894 | sym = symbol_find_or_make (real_name); | |
2895 | ||
2896 | ppc_change_csect (sym); | |
2897 | ||
2898 | demand_empty_rest_of_line (); | |
2899 | } | |
2900 | ||
2901 | /* The .extern pseudo-op. We create an undefined symbol. */ | |
2902 | ||
2903 | static void | |
2904 | ppc_extern (ignore) | |
5480ccf3 | 2905 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2906 | { |
2907 | char *name; | |
2908 | char endc; | |
2909 | ||
2910 | name = input_line_pointer; | |
2911 | endc = get_symbol_end (); | |
2912 | ||
2913 | (void) symbol_find_or_make (name); | |
2914 | ||
2915 | *input_line_pointer = endc; | |
2916 | ||
2917 | demand_empty_rest_of_line (); | |
2918 | } | |
2919 | ||
2920 | /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */ | |
2921 | ||
2922 | static void | |
2923 | ppc_lglobl (ignore) | |
5480ccf3 | 2924 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2925 | { |
2926 | char *name; | |
2927 | char endc; | |
2928 | symbolS *sym; | |
2929 | ||
2930 | name = input_line_pointer; | |
2931 | endc = get_symbol_end (); | |
2932 | ||
2933 | sym = symbol_find_or_make (name); | |
2934 | ||
2935 | *input_line_pointer = endc; | |
2936 | ||
809ffe0d | 2937 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
2938 | |
2939 | demand_empty_rest_of_line (); | |
2940 | } | |
2941 | ||
2942 | /* The .rename pseudo-op. The RS/6000 assembler can rename symbols, | |
2943 | although I don't know why it bothers. */ | |
2944 | ||
2945 | static void | |
2946 | ppc_rename (ignore) | |
5480ccf3 | 2947 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2948 | { |
2949 | char *name; | |
2950 | char endc; | |
2951 | symbolS *sym; | |
2952 | int len; | |
2953 | ||
2954 | name = input_line_pointer; | |
2955 | endc = get_symbol_end (); | |
2956 | ||
2957 | sym = symbol_find_or_make (name); | |
2958 | ||
2959 | *input_line_pointer = endc; | |
2960 | ||
2961 | if (*input_line_pointer != ',') | |
2962 | { | |
2963 | as_bad (_("missing rename string")); | |
2964 | ignore_rest_of_line (); | |
2965 | return; | |
2966 | } | |
2967 | ++input_line_pointer; | |
2968 | ||
809ffe0d | 2969 | symbol_get_tc (sym)->real_name = demand_copy_C_string (&len); |
252b5132 RH |
2970 | |
2971 | demand_empty_rest_of_line (); | |
2972 | } | |
2973 | ||
2974 | /* The .stabx pseudo-op. This is similar to a normal .stabs | |
2975 | pseudo-op, but slightly different. A sample is | |
2976 | .stabx "main:F-1",.main,142,0 | |
2977 | The first argument is the symbol name to create. The second is the | |
2978 | value, and the third is the storage class. The fourth seems to be | |
2979 | always zero, and I am assuming it is the type. */ | |
2980 | ||
2981 | static void | |
2982 | ppc_stabx (ignore) | |
5480ccf3 | 2983 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2984 | { |
2985 | char *name; | |
2986 | int len; | |
2987 | symbolS *sym; | |
2988 | expressionS exp; | |
2989 | ||
2990 | name = demand_copy_C_string (&len); | |
2991 | ||
2992 | if (*input_line_pointer != ',') | |
2993 | { | |
2994 | as_bad (_("missing value")); | |
2995 | return; | |
2996 | } | |
2997 | ++input_line_pointer; | |
2998 | ||
2999 | ppc_stab_symbol = true; | |
3000 | sym = symbol_make (name); | |
3001 | ppc_stab_symbol = false; | |
3002 | ||
809ffe0d | 3003 | symbol_get_tc (sym)->real_name = name; |
252b5132 RH |
3004 | |
3005 | (void) expression (&exp); | |
3006 | ||
3007 | switch (exp.X_op) | |
3008 | { | |
3009 | case O_illegal: | |
3010 | case O_absent: | |
3011 | case O_big: | |
3012 | as_bad (_("illegal .stabx expression; zero assumed")); | |
3013 | exp.X_add_number = 0; | |
3014 | /* Fall through. */ | |
3015 | case O_constant: | |
3016 | S_SET_VALUE (sym, (valueT) exp.X_add_number); | |
809ffe0d | 3017 | symbol_set_frag (sym, &zero_address_frag); |
252b5132 RH |
3018 | break; |
3019 | ||
3020 | case O_symbol: | |
3021 | if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section) | |
809ffe0d | 3022 | symbol_set_value_expression (sym, &exp); |
252b5132 RH |
3023 | else |
3024 | { | |
3025 | S_SET_VALUE (sym, | |
3026 | exp.X_add_number + S_GET_VALUE (exp.X_add_symbol)); | |
809ffe0d | 3027 | symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol)); |
252b5132 RH |
3028 | } |
3029 | break; | |
3030 | ||
3031 | default: | |
3032 | /* The value is some complex expression. This will probably | |
99a814a1 AM |
3033 | fail at some later point, but this is probably the right |
3034 | thing to do here. */ | |
809ffe0d | 3035 | symbol_set_value_expression (sym, &exp); |
252b5132 RH |
3036 | break; |
3037 | } | |
3038 | ||
3039 | S_SET_SEGMENT (sym, ppc_coff_debug_section); | |
809ffe0d | 3040 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3041 | |
3042 | if (*input_line_pointer != ',') | |
3043 | { | |
3044 | as_bad (_("missing class")); | |
3045 | return; | |
3046 | } | |
3047 | ++input_line_pointer; | |
3048 | ||
3049 | S_SET_STORAGE_CLASS (sym, get_absolute_expression ()); | |
3050 | ||
3051 | if (*input_line_pointer != ',') | |
3052 | { | |
3053 | as_bad (_("missing type")); | |
3054 | return; | |
3055 | } | |
3056 | ++input_line_pointer; | |
3057 | ||
3058 | S_SET_DATA_TYPE (sym, get_absolute_expression ()); | |
3059 | ||
809ffe0d | 3060 | symbol_get_tc (sym)->output = 1; |
252b5132 | 3061 | |
6877bb43 | 3062 | if (S_GET_STORAGE_CLASS (sym) == C_STSYM) { |
99a814a1 | 3063 | |
809ffe0d | 3064 | symbol_get_tc (sym)->within = ppc_current_block; |
252b5132 | 3065 | |
41ea10b1 | 3066 | /* In this case : |
99a814a1 | 3067 | |
41ea10b1 TR |
3068 | .bs name |
3069 | .stabx "z",arrays_,133,0 | |
3070 | .es | |
99a814a1 | 3071 | |
41ea10b1 | 3072 | .comm arrays_,13768,3 |
99a814a1 | 3073 | |
41ea10b1 TR |
3074 | resolve_symbol_value will copy the exp's "within" into sym's when the |
3075 | offset is 0. Since this seems to be corner case problem, | |
3076 | only do the correction for storage class C_STSYM. A better solution | |
0baf16f2 | 3077 | would be to have the tc field updated in ppc_symbol_new_hook. */ |
99a814a1 AM |
3078 | |
3079 | if (exp.X_op == O_symbol) | |
41ea10b1 TR |
3080 | { |
3081 | symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block; | |
3082 | } | |
6877bb43 | 3083 | } |
99a814a1 | 3084 | |
252b5132 RH |
3085 | if (exp.X_op != O_symbol |
3086 | || ! S_IS_EXTERNAL (exp.X_add_symbol) | |
3087 | || S_GET_SEGMENT (exp.X_add_symbol) != bss_section) | |
3088 | ppc_frob_label (sym); | |
3089 | else | |
3090 | { | |
3091 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
3092 | symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP); | |
809ffe0d ILT |
3093 | if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol) |
3094 | symbol_get_tc (ppc_current_csect)->within = sym; | |
252b5132 RH |
3095 | } |
3096 | ||
3097 | demand_empty_rest_of_line (); | |
3098 | } | |
3099 | ||
3100 | /* The .function pseudo-op. This takes several arguments. The first | |
3101 | argument seems to be the external name of the symbol. The second | |
3102 | argment seems to be the label for the start of the function. gcc | |
3103 | uses the same name for both. I have no idea what the third and | |
3104 | fourth arguments are meant to be. The optional fifth argument is | |
3105 | an expression for the size of the function. In COFF this symbol | |
3106 | gets an aux entry like that used for a csect. */ | |
3107 | ||
3108 | static void | |
3109 | ppc_function (ignore) | |
5480ccf3 | 3110 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3111 | { |
3112 | char *name; | |
3113 | char endc; | |
3114 | char *s; | |
3115 | symbolS *ext_sym; | |
3116 | symbolS *lab_sym; | |
3117 | ||
3118 | name = input_line_pointer; | |
3119 | endc = get_symbol_end (); | |
3120 | ||
3121 | /* Ignore any [PR] suffix. */ | |
3122 | name = ppc_canonicalize_symbol_name (name); | |
3123 | s = strchr (name, '['); | |
3124 | if (s != (char *) NULL | |
3125 | && strcmp (s + 1, "PR]") == 0) | |
3126 | *s = '\0'; | |
3127 | ||
3128 | ext_sym = symbol_find_or_make (name); | |
3129 | ||
3130 | *input_line_pointer = endc; | |
3131 | ||
3132 | if (*input_line_pointer != ',') | |
3133 | { | |
3134 | as_bad (_("missing symbol name")); | |
3135 | ignore_rest_of_line (); | |
3136 | return; | |
3137 | } | |
3138 | ++input_line_pointer; | |
3139 | ||
3140 | name = input_line_pointer; | |
3141 | endc = get_symbol_end (); | |
3142 | ||
3143 | lab_sym = symbol_find_or_make (name); | |
3144 | ||
3145 | *input_line_pointer = endc; | |
3146 | ||
3147 | if (ext_sym != lab_sym) | |
3148 | { | |
809ffe0d ILT |
3149 | expressionS exp; |
3150 | ||
3151 | exp.X_op = O_symbol; | |
3152 | exp.X_add_symbol = lab_sym; | |
3153 | exp.X_op_symbol = NULL; | |
3154 | exp.X_add_number = 0; | |
3155 | exp.X_unsigned = 0; | |
3156 | symbol_set_value_expression (ext_sym, &exp); | |
252b5132 RH |
3157 | } |
3158 | ||
809ffe0d ILT |
3159 | if (symbol_get_tc (ext_sym)->class == -1) |
3160 | symbol_get_tc (ext_sym)->class = XMC_PR; | |
3161 | symbol_get_tc (ext_sym)->output = 1; | |
252b5132 RH |
3162 | |
3163 | if (*input_line_pointer == ',') | |
3164 | { | |
3165 | expressionS ignore; | |
3166 | ||
3167 | /* Ignore the third argument. */ | |
3168 | ++input_line_pointer; | |
3169 | expression (&ignore); | |
3170 | if (*input_line_pointer == ',') | |
3171 | { | |
3172 | /* Ignore the fourth argument. */ | |
3173 | ++input_line_pointer; | |
3174 | expression (&ignore); | |
3175 | if (*input_line_pointer == ',') | |
3176 | { | |
3177 | /* The fifth argument is the function size. */ | |
3178 | ++input_line_pointer; | |
809ffe0d ILT |
3179 | symbol_get_tc (ext_sym)->size = symbol_new ("L0\001", |
3180 | absolute_section, | |
3181 | (valueT) 0, | |
3182 | &zero_address_frag); | |
3183 | pseudo_set (symbol_get_tc (ext_sym)->size); | |
252b5132 RH |
3184 | } |
3185 | } | |
3186 | } | |
3187 | ||
3188 | S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT); | |
3189 | SF_SET_FUNCTION (ext_sym); | |
3190 | SF_SET_PROCESS (ext_sym); | |
3191 | coff_add_linesym (ext_sym); | |
3192 | ||
3193 | demand_empty_rest_of_line (); | |
3194 | } | |
3195 | ||
3196 | /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named | |
8642cce8 TR |
3197 | ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym |
3198 | with the correct line number */ | |
3199 | ||
3200 | static symbolS *saved_bi_sym = 0; | |
252b5132 RH |
3201 | |
3202 | static void | |
3203 | ppc_bf (ignore) | |
5480ccf3 | 3204 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3205 | { |
3206 | symbolS *sym; | |
3207 | ||
3208 | sym = symbol_make (".bf"); | |
3209 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3210 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3211 | S_SET_VALUE (sym, frag_now_fix ()); |
3212 | S_SET_STORAGE_CLASS (sym, C_FCN); | |
3213 | ||
3214 | coff_line_base = get_absolute_expression (); | |
3215 | ||
3216 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3217 | SA_SET_SYM_LNNO (sym, coff_line_base); | |
3218 | ||
8642cce8 TR |
3219 | /* Line number for bi. */ |
3220 | if (saved_bi_sym) | |
3221 | { | |
3222 | S_SET_VALUE (saved_bi_sym, coff_n_line_nos); | |
3223 | saved_bi_sym = 0; | |
3224 | } | |
3225 | ||
3226 | ||
809ffe0d | 3227 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3228 | |
3229 | ppc_frob_label (sym); | |
3230 | ||
3231 | demand_empty_rest_of_line (); | |
3232 | } | |
3233 | ||
3234 | /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named | |
3235 | ".ef", except that the line number is absolute, not relative to the | |
3236 | most recent ".bf" symbol. */ | |
3237 | ||
3238 | static void | |
3239 | ppc_ef (ignore) | |
5480ccf3 | 3240 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3241 | { |
3242 | symbolS *sym; | |
3243 | ||
3244 | sym = symbol_make (".ef"); | |
3245 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3246 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3247 | S_SET_VALUE (sym, frag_now_fix ()); |
3248 | S_SET_STORAGE_CLASS (sym, C_FCN); | |
3249 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3250 | SA_SET_SYM_LNNO (sym, get_absolute_expression ()); | |
809ffe0d | 3251 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3252 | |
3253 | ppc_frob_label (sym); | |
3254 | ||
3255 | demand_empty_rest_of_line (); | |
3256 | } | |
3257 | ||
3258 | /* The .bi and .ei pseudo-ops. These take a string argument and | |
3259 | generates a C_BINCL or C_EINCL symbol, which goes at the start of | |
8642cce8 TR |
3260 | the symbol list. The value of .bi will be know when the next .bf |
3261 | is encountered. */ | |
252b5132 RH |
3262 | |
3263 | static void | |
3264 | ppc_biei (ei) | |
3265 | int ei; | |
3266 | { | |
3267 | static symbolS *last_biei; | |
3268 | ||
3269 | char *name; | |
3270 | int len; | |
3271 | symbolS *sym; | |
3272 | symbolS *look; | |
3273 | ||
3274 | name = demand_copy_C_string (&len); | |
3275 | ||
3276 | /* The value of these symbols is actually file offset. Here we set | |
3277 | the value to the index into the line number entries. In | |
3278 | ppc_frob_symbols we set the fix_line field, which will cause BFD | |
3279 | to do the right thing. */ | |
3280 | ||
3281 | sym = symbol_make (name); | |
3282 | /* obj-coff.c currently only handles line numbers correctly in the | |
3283 | .text section. */ | |
3284 | S_SET_SEGMENT (sym, text_section); | |
3285 | S_SET_VALUE (sym, coff_n_line_nos); | |
809ffe0d | 3286 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3287 | |
3288 | S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL); | |
809ffe0d | 3289 | symbol_get_tc (sym)->output = 1; |
81d4177b | 3290 | |
8642cce8 TR |
3291 | /* Save bi. */ |
3292 | if (ei) | |
3293 | saved_bi_sym = 0; | |
3294 | else | |
3295 | saved_bi_sym = sym; | |
3296 | ||
252b5132 RH |
3297 | for (look = last_biei ? last_biei : symbol_rootP; |
3298 | (look != (symbolS *) NULL | |
3299 | && (S_GET_STORAGE_CLASS (look) == C_FILE | |
3300 | || S_GET_STORAGE_CLASS (look) == C_BINCL | |
3301 | || S_GET_STORAGE_CLASS (look) == C_EINCL)); | |
3302 | look = symbol_next (look)) | |
3303 | ; | |
3304 | if (look != (symbolS *) NULL) | |
3305 | { | |
3306 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
3307 | symbol_insert (sym, look, &symbol_rootP, &symbol_lastP); | |
3308 | last_biei = sym; | |
3309 | } | |
3310 | ||
3311 | demand_empty_rest_of_line (); | |
3312 | } | |
3313 | ||
3314 | /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs". | |
3315 | There is one argument, which is a csect symbol. The value of the | |
3316 | .bs symbol is the index of this csect symbol. */ | |
3317 | ||
3318 | static void | |
3319 | ppc_bs (ignore) | |
5480ccf3 | 3320 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3321 | { |
3322 | char *name; | |
3323 | char endc; | |
3324 | symbolS *csect; | |
3325 | symbolS *sym; | |
3326 | ||
3327 | if (ppc_current_block != NULL) | |
3328 | as_bad (_("nested .bs blocks")); | |
3329 | ||
3330 | name = input_line_pointer; | |
3331 | endc = get_symbol_end (); | |
3332 | ||
3333 | csect = symbol_find_or_make (name); | |
3334 | ||
3335 | *input_line_pointer = endc; | |
3336 | ||
3337 | sym = symbol_make (".bs"); | |
3338 | S_SET_SEGMENT (sym, now_seg); | |
3339 | S_SET_STORAGE_CLASS (sym, C_BSTAT); | |
809ffe0d ILT |
3340 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
3341 | symbol_get_tc (sym)->output = 1; | |
252b5132 | 3342 | |
809ffe0d | 3343 | symbol_get_tc (sym)->within = csect; |
252b5132 RH |
3344 | |
3345 | ppc_frob_label (sym); | |
3346 | ||
3347 | ppc_current_block = sym; | |
3348 | ||
3349 | demand_empty_rest_of_line (); | |
3350 | } | |
3351 | ||
3352 | /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */ | |
3353 | ||
3354 | static void | |
3355 | ppc_es (ignore) | |
5480ccf3 | 3356 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3357 | { |
3358 | symbolS *sym; | |
3359 | ||
3360 | if (ppc_current_block == NULL) | |
3361 | as_bad (_(".es without preceding .bs")); | |
3362 | ||
3363 | sym = symbol_make (".es"); | |
3364 | S_SET_SEGMENT (sym, now_seg); | |
3365 | S_SET_STORAGE_CLASS (sym, C_ESTAT); | |
809ffe0d ILT |
3366 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
3367 | symbol_get_tc (sym)->output = 1; | |
252b5132 RH |
3368 | |
3369 | ppc_frob_label (sym); | |
3370 | ||
3371 | ppc_current_block = NULL; | |
3372 | ||
3373 | demand_empty_rest_of_line (); | |
3374 | } | |
3375 | ||
3376 | /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a | |
3377 | line number. */ | |
3378 | ||
3379 | static void | |
3380 | ppc_bb (ignore) | |
5480ccf3 | 3381 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3382 | { |
3383 | symbolS *sym; | |
3384 | ||
3385 | sym = symbol_make (".bb"); | |
3386 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3387 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3388 | S_SET_VALUE (sym, frag_now_fix ()); |
3389 | S_SET_STORAGE_CLASS (sym, C_BLOCK); | |
3390 | ||
3391 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3392 | SA_SET_SYM_LNNO (sym, get_absolute_expression ()); | |
3393 | ||
809ffe0d | 3394 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3395 | |
3396 | SF_SET_PROCESS (sym); | |
3397 | ||
3398 | ppc_frob_label (sym); | |
3399 | ||
3400 | demand_empty_rest_of_line (); | |
3401 | } | |
3402 | ||
3403 | /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a | |
3404 | line number. */ | |
3405 | ||
3406 | static void | |
3407 | ppc_eb (ignore) | |
5480ccf3 | 3408 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3409 | { |
3410 | symbolS *sym; | |
3411 | ||
3412 | sym = symbol_make (".eb"); | |
3413 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3414 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3415 | S_SET_VALUE (sym, frag_now_fix ()); |
3416 | S_SET_STORAGE_CLASS (sym, C_BLOCK); | |
3417 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3418 | SA_SET_SYM_LNNO (sym, get_absolute_expression ()); | |
809ffe0d | 3419 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3420 | |
3421 | SF_SET_PROCESS (sym); | |
3422 | ||
3423 | ppc_frob_label (sym); | |
3424 | ||
3425 | demand_empty_rest_of_line (); | |
3426 | } | |
3427 | ||
3428 | /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a | |
3429 | specified name. */ | |
3430 | ||
3431 | static void | |
3432 | ppc_bc (ignore) | |
5480ccf3 | 3433 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3434 | { |
3435 | char *name; | |
3436 | int len; | |
3437 | symbolS *sym; | |
3438 | ||
3439 | name = demand_copy_C_string (&len); | |
3440 | sym = symbol_make (name); | |
3441 | S_SET_SEGMENT (sym, ppc_coff_debug_section); | |
809ffe0d | 3442 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3443 | S_SET_STORAGE_CLASS (sym, C_BCOMM); |
3444 | S_SET_VALUE (sym, 0); | |
809ffe0d | 3445 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3446 | |
3447 | ppc_frob_label (sym); | |
3448 | ||
3449 | demand_empty_rest_of_line (); | |
3450 | } | |
3451 | ||
3452 | /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */ | |
3453 | ||
3454 | static void | |
3455 | ppc_ec (ignore) | |
5480ccf3 | 3456 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3457 | { |
3458 | symbolS *sym; | |
3459 | ||
3460 | sym = symbol_make (".ec"); | |
3461 | S_SET_SEGMENT (sym, ppc_coff_debug_section); | |
809ffe0d | 3462 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3463 | S_SET_STORAGE_CLASS (sym, C_ECOMM); |
3464 | S_SET_VALUE (sym, 0); | |
809ffe0d | 3465 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3466 | |
3467 | ppc_frob_label (sym); | |
3468 | ||
3469 | demand_empty_rest_of_line (); | |
3470 | } | |
3471 | ||
3472 | /* The .toc pseudo-op. Switch to the .toc subsegment. */ | |
3473 | ||
3474 | static void | |
3475 | ppc_toc (ignore) | |
5480ccf3 | 3476 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3477 | { |
3478 | if (ppc_toc_csect != (symbolS *) NULL) | |
809ffe0d | 3479 | subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg); |
252b5132 RH |
3480 | else |
3481 | { | |
3482 | subsegT subseg; | |
3483 | symbolS *sym; | |
3484 | symbolS *list; | |
81d4177b | 3485 | |
252b5132 RH |
3486 | subseg = ppc_data_subsegment; |
3487 | ++ppc_data_subsegment; | |
3488 | ||
3489 | subseg_new (segment_name (data_section), subseg); | |
3490 | ppc_toc_frag = frag_now; | |
3491 | ||
3492 | sym = symbol_find_or_make ("TOC[TC0]"); | |
809ffe0d | 3493 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3494 | S_SET_SEGMENT (sym, data_section); |
3495 | S_SET_VALUE (sym, (valueT) frag_now_fix ()); | |
809ffe0d ILT |
3496 | symbol_get_tc (sym)->subseg = subseg; |
3497 | symbol_get_tc (sym)->output = 1; | |
3498 | symbol_get_tc (sym)->within = sym; | |
252b5132 RH |
3499 | |
3500 | ppc_toc_csect = sym; | |
81d4177b | 3501 | |
252b5132 | 3502 | for (list = ppc_data_csects; |
809ffe0d ILT |
3503 | symbol_get_tc (list)->next != (symbolS *) NULL; |
3504 | list = symbol_get_tc (list)->next) | |
252b5132 | 3505 | ; |
809ffe0d | 3506 | symbol_get_tc (list)->next = sym; |
252b5132 RH |
3507 | |
3508 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
809ffe0d ILT |
3509 | symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP, |
3510 | &symbol_lastP); | |
252b5132 RH |
3511 | } |
3512 | ||
3513 | ppc_current_csect = ppc_toc_csect; | |
3514 | ||
3515 | demand_empty_rest_of_line (); | |
3516 | } | |
3517 | ||
3518 | /* The AIX assembler automatically aligns the operands of a .long or | |
3519 | .short pseudo-op, and we want to be compatible. */ | |
3520 | ||
3521 | static void | |
3522 | ppc_xcoff_cons (log_size) | |
3523 | int log_size; | |
3524 | { | |
3525 | frag_align (log_size, 0, 0); | |
3526 | record_alignment (now_seg, log_size); | |
3527 | cons (1 << log_size); | |
3528 | } | |
3529 | ||
3530 | static void | |
3531 | ppc_vbyte (dummy) | |
5480ccf3 | 3532 | int dummy ATTRIBUTE_UNUSED; |
252b5132 RH |
3533 | { |
3534 | expressionS exp; | |
3535 | int byte_count; | |
3536 | ||
3537 | (void) expression (&exp); | |
3538 | ||
3539 | if (exp.X_op != O_constant) | |
3540 | { | |
3541 | as_bad (_("non-constant byte count")); | |
3542 | return; | |
3543 | } | |
3544 | ||
3545 | byte_count = exp.X_add_number; | |
3546 | ||
3547 | if (*input_line_pointer != ',') | |
3548 | { | |
3549 | as_bad (_("missing value")); | |
3550 | return; | |
3551 | } | |
3552 | ||
3553 | ++input_line_pointer; | |
3554 | cons (byte_count); | |
3555 | } | |
3556 | ||
3557 | #endif /* OBJ_XCOFF */ | |
0baf16f2 | 3558 | #if defined (OBJ_XCOFF) || defined (OBJ_ELF) |
252b5132 RH |
3559 | \f |
3560 | /* The .tc pseudo-op. This is used when generating either XCOFF or | |
3561 | ELF. This takes two or more arguments. | |
3562 | ||
3563 | When generating XCOFF output, the first argument is the name to | |
3564 | give to this location in the toc; this will be a symbol with class | |
0baf16f2 | 3565 | TC. The rest of the arguments are N-byte values to actually put at |
252b5132 | 3566 | this location in the TOC; often there is just one more argument, a |
0baf16f2 AM |
3567 | relocateable symbol reference. The size of the value to store |
3568 | depends on target word size. A 32-bit target uses 4-byte values, a | |
3569 | 64-bit target uses 8-byte values. | |
252b5132 RH |
3570 | |
3571 | When not generating XCOFF output, the arguments are the same, but | |
3572 | the first argument is simply ignored. */ | |
3573 | ||
3574 | static void | |
3575 | ppc_tc (ignore) | |
92161534 | 3576 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3577 | { |
3578 | #ifdef OBJ_XCOFF | |
3579 | ||
3580 | /* Define the TOC symbol name. */ | |
3581 | { | |
3582 | char *name; | |
3583 | char endc; | |
3584 | symbolS *sym; | |
3585 | ||
3586 | if (ppc_toc_csect == (symbolS *) NULL | |
3587 | || ppc_toc_csect != ppc_current_csect) | |
3588 | { | |
3589 | as_bad (_(".tc not in .toc section")); | |
3590 | ignore_rest_of_line (); | |
3591 | return; | |
3592 | } | |
3593 | ||
3594 | name = input_line_pointer; | |
3595 | endc = get_symbol_end (); | |
3596 | ||
3597 | sym = symbol_find_or_make (name); | |
3598 | ||
3599 | *input_line_pointer = endc; | |
3600 | ||
3601 | if (S_IS_DEFINED (sym)) | |
3602 | { | |
3603 | symbolS *label; | |
3604 | ||
809ffe0d ILT |
3605 | label = symbol_get_tc (ppc_current_csect)->within; |
3606 | if (symbol_get_tc (label)->class != XMC_TC0) | |
252b5132 RH |
3607 | { |
3608 | as_bad (_(".tc with no label")); | |
3609 | ignore_rest_of_line (); | |
3610 | return; | |
3611 | } | |
3612 | ||
3613 | S_SET_SEGMENT (label, S_GET_SEGMENT (sym)); | |
809ffe0d | 3614 | symbol_set_frag (label, symbol_get_frag (sym)); |
252b5132 RH |
3615 | S_SET_VALUE (label, S_GET_VALUE (sym)); |
3616 | ||
3617 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
3618 | ++input_line_pointer; | |
3619 | ||
3620 | return; | |
3621 | } | |
3622 | ||
3623 | S_SET_SEGMENT (sym, now_seg); | |
809ffe0d | 3624 | symbol_set_frag (sym, frag_now); |
252b5132 | 3625 | S_SET_VALUE (sym, (valueT) frag_now_fix ()); |
809ffe0d ILT |
3626 | symbol_get_tc (sym)->class = XMC_TC; |
3627 | symbol_get_tc (sym)->output = 1; | |
252b5132 RH |
3628 | |
3629 | ppc_frob_label (sym); | |
3630 | } | |
3631 | ||
0baf16f2 AM |
3632 | #endif /* OBJ_XCOFF */ |
3633 | #ifdef OBJ_ELF | |
9c7977b3 | 3634 | int align; |
252b5132 RH |
3635 | |
3636 | /* Skip the TOC symbol name. */ | |
3637 | while (is_part_of_name (*input_line_pointer) | |
3638 | || *input_line_pointer == '[' | |
3639 | || *input_line_pointer == ']' | |
3640 | || *input_line_pointer == '{' | |
3641 | || *input_line_pointer == '}') | |
3642 | ++input_line_pointer; | |
3643 | ||
0baf16f2 | 3644 | /* Align to a four/eight byte boundary. */ |
9c7977b3 AM |
3645 | align = BFD_DEFAULT_TARGET_SIZE == 64 && ppc_size == PPC_OPCODE_64 ? 3 : 2; |
3646 | frag_align (align, 0, 0); | |
3647 | record_alignment (now_seg, align); | |
0baf16f2 | 3648 | #endif /* OBJ_ELF */ |
252b5132 RH |
3649 | |
3650 | if (*input_line_pointer != ',') | |
3651 | demand_empty_rest_of_line (); | |
3652 | else | |
3653 | { | |
3654 | ++input_line_pointer; | |
7f6d05e8 | 3655 | cons ((ppc_size == PPC_OPCODE_64) ? 8 : 4); |
252b5132 RH |
3656 | } |
3657 | } | |
0baf16f2 AM |
3658 | |
3659 | /* Pseudo-op .machine. */ | |
15c1449b AM |
3660 | /* FIXME: `.machine' is a nop for the moment. It would be nice to |
3661 | accept this directive on the first line of input and set ppc_size | |
3662 | and the target format accordingly. Unfortunately, the target | |
3663 | format is selected in output-file.c:output_file_create before we | |
3664 | even get to md_begin, so it's not possible without changing | |
3665 | as.c:main. */ | |
0baf16f2 AM |
3666 | |
3667 | static void | |
3668 | ppc_machine (ignore) | |
3669 | int ignore ATTRIBUTE_UNUSED; | |
3670 | { | |
3671 | discard_rest_of_line (); | |
3672 | } | |
3673 | ||
3674 | /* See whether a symbol is in the TOC section. */ | |
3675 | ||
3676 | static int | |
3677 | ppc_is_toc_sym (sym) | |
3678 | symbolS *sym; | |
3679 | { | |
3680 | #ifdef OBJ_XCOFF | |
3681 | return symbol_get_tc (sym)->class == XMC_TC; | |
3682 | #endif | |
3683 | #ifdef OBJ_ELF | |
3684 | const char *sname = segment_name (S_GET_SEGMENT (sym)); | |
9c7977b3 | 3685 | if (BFD_DEFAULT_TARGET_SIZE == 64 && ppc_size == PPC_OPCODE_64) |
0baf16f2 AM |
3686 | return strcmp (sname, ".toc") == 0; |
3687 | else | |
3688 | return strcmp (sname, ".got") == 0; | |
3689 | #endif | |
3690 | } | |
3691 | #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */ | |
252b5132 RH |
3692 | \f |
3693 | #ifdef TE_PE | |
3694 | ||
99a814a1 | 3695 | /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */ |
252b5132 RH |
3696 | |
3697 | /* Set the current section. */ | |
3698 | static void | |
3699 | ppc_set_current_section (new) | |
3700 | segT new; | |
3701 | { | |
3702 | ppc_previous_section = ppc_current_section; | |
3703 | ppc_current_section = new; | |
3704 | } | |
3705 | ||
3706 | /* pseudo-op: .previous | |
3707 | behaviour: toggles the current section with the previous section. | |
3708 | errors: None | |
99a814a1 AM |
3709 | warnings: "No previous section" */ |
3710 | ||
252b5132 | 3711 | static void |
99a814a1 | 3712 | ppc_previous (ignore) |
5480ccf3 | 3713 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3714 | { |
3715 | symbolS *tmp; | |
3716 | ||
81d4177b | 3717 | if (ppc_previous_section == NULL) |
252b5132 | 3718 | { |
99a814a1 | 3719 | as_warn (_("No previous section to return to. Directive ignored.")); |
252b5132 RH |
3720 | return; |
3721 | } | |
3722 | ||
99a814a1 | 3723 | subseg_set (ppc_previous_section, 0); |
252b5132 | 3724 | |
99a814a1 | 3725 | ppc_set_current_section (ppc_previous_section); |
252b5132 RH |
3726 | } |
3727 | ||
3728 | /* pseudo-op: .pdata | |
3729 | behaviour: predefined read only data section | |
3730 | double word aligned | |
3731 | errors: None | |
3732 | warnings: None | |
3733 | initial: .section .pdata "adr3" | |
3734 | a - don't know -- maybe a misprint | |
3735 | d - initialized data | |
3736 | r - readable | |
3737 | 3 - double word aligned (that would be 4 byte boundary) | |
3738 | ||
3739 | commentary: | |
3740 | Tag index tables (also known as the function table) for exception | |
99a814a1 | 3741 | handling, debugging, etc. */ |
252b5132 | 3742 | |
252b5132 | 3743 | static void |
99a814a1 | 3744 | ppc_pdata (ignore) |
5480ccf3 | 3745 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 3746 | { |
81d4177b | 3747 | if (pdata_section == 0) |
252b5132 RH |
3748 | { |
3749 | pdata_section = subseg_new (".pdata", 0); | |
81d4177b | 3750 | |
252b5132 RH |
3751 | bfd_set_section_flags (stdoutput, pdata_section, |
3752 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
3753 | | SEC_READONLY | SEC_DATA )); | |
81d4177b | 3754 | |
252b5132 RH |
3755 | bfd_set_section_alignment (stdoutput, pdata_section, 2); |
3756 | } | |
3757 | else | |
3758 | { | |
99a814a1 | 3759 | pdata_section = subseg_new (".pdata", 0); |
252b5132 | 3760 | } |
99a814a1 | 3761 | ppc_set_current_section (pdata_section); |
252b5132 RH |
3762 | } |
3763 | ||
3764 | /* pseudo-op: .ydata | |
3765 | behaviour: predefined read only data section | |
3766 | double word aligned | |
3767 | errors: None | |
3768 | warnings: None | |
3769 | initial: .section .ydata "drw3" | |
3770 | a - don't know -- maybe a misprint | |
3771 | d - initialized data | |
3772 | r - readable | |
3773 | 3 - double word aligned (that would be 4 byte boundary) | |
3774 | commentary: | |
3775 | Tag tables (also known as the scope table) for exception handling, | |
99a814a1 AM |
3776 | debugging, etc. */ |
3777 | ||
252b5132 | 3778 | static void |
99a814a1 | 3779 | ppc_ydata (ignore) |
5480ccf3 | 3780 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 3781 | { |
81d4177b | 3782 | if (ydata_section == 0) |
252b5132 RH |
3783 | { |
3784 | ydata_section = subseg_new (".ydata", 0); | |
3785 | bfd_set_section_flags (stdoutput, ydata_section, | |
99a814a1 AM |
3786 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
3787 | | SEC_READONLY | SEC_DATA )); | |
252b5132 RH |
3788 | |
3789 | bfd_set_section_alignment (stdoutput, ydata_section, 3); | |
3790 | } | |
3791 | else | |
3792 | { | |
3793 | ydata_section = subseg_new (".ydata", 0); | |
3794 | } | |
99a814a1 | 3795 | ppc_set_current_section (ydata_section); |
252b5132 RH |
3796 | } |
3797 | ||
3798 | /* pseudo-op: .reldata | |
3799 | behaviour: predefined read write data section | |
3800 | double word aligned (4-byte) | |
3801 | FIXME: relocation is applied to it | |
3802 | FIXME: what's the difference between this and .data? | |
3803 | errors: None | |
3804 | warnings: None | |
3805 | initial: .section .reldata "drw3" | |
3806 | d - initialized data | |
3807 | r - readable | |
3808 | w - writeable | |
3809 | 3 - double word aligned (that would be 8 byte boundary) | |
3810 | ||
3811 | commentary: | |
3812 | Like .data, but intended to hold data subject to relocation, such as | |
99a814a1 AM |
3813 | function descriptors, etc. */ |
3814 | ||
252b5132 | 3815 | static void |
99a814a1 | 3816 | ppc_reldata (ignore) |
5480ccf3 | 3817 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3818 | { |
3819 | if (reldata_section == 0) | |
3820 | { | |
3821 | reldata_section = subseg_new (".reldata", 0); | |
3822 | ||
3823 | bfd_set_section_flags (stdoutput, reldata_section, | |
99a814a1 AM |
3824 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
3825 | | SEC_DATA)); | |
252b5132 RH |
3826 | |
3827 | bfd_set_section_alignment (stdoutput, reldata_section, 2); | |
3828 | } | |
3829 | else | |
3830 | { | |
3831 | reldata_section = subseg_new (".reldata", 0); | |
3832 | } | |
99a814a1 | 3833 | ppc_set_current_section (reldata_section); |
252b5132 RH |
3834 | } |
3835 | ||
3836 | /* pseudo-op: .rdata | |
3837 | behaviour: predefined read only data section | |
3838 | double word aligned | |
3839 | errors: None | |
3840 | warnings: None | |
3841 | initial: .section .rdata "dr3" | |
3842 | d - initialized data | |
3843 | r - readable | |
99a814a1 AM |
3844 | 3 - double word aligned (that would be 4 byte boundary) */ |
3845 | ||
252b5132 | 3846 | static void |
99a814a1 | 3847 | ppc_rdata (ignore) |
5480ccf3 | 3848 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3849 | { |
3850 | if (rdata_section == 0) | |
3851 | { | |
3852 | rdata_section = subseg_new (".rdata", 0); | |
3853 | bfd_set_section_flags (stdoutput, rdata_section, | |
3854 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
3855 | | SEC_READONLY | SEC_DATA )); | |
3856 | ||
3857 | bfd_set_section_alignment (stdoutput, rdata_section, 2); | |
3858 | } | |
3859 | else | |
3860 | { | |
3861 | rdata_section = subseg_new (".rdata", 0); | |
3862 | } | |
99a814a1 | 3863 | ppc_set_current_section (rdata_section); |
252b5132 RH |
3864 | } |
3865 | ||
3866 | /* pseudo-op: .ualong | |
81d4177b | 3867 | behaviour: much like .int, with the exception that no alignment is |
252b5132 RH |
3868 | performed. |
3869 | FIXME: test the alignment statement | |
3870 | errors: None | |
99a814a1 AM |
3871 | warnings: None */ |
3872 | ||
252b5132 | 3873 | static void |
99a814a1 | 3874 | ppc_ualong (ignore) |
5480ccf3 | 3875 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 3876 | { |
99a814a1 AM |
3877 | /* Try for long. */ |
3878 | cons (4); | |
252b5132 RH |
3879 | } |
3880 | ||
3881 | /* pseudo-op: .znop <symbol name> | |
3882 | behaviour: Issue a nop instruction | |
3883 | Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using | |
3884 | the supplied symbol name. | |
3885 | errors: None | |
99a814a1 AM |
3886 | warnings: Missing symbol name */ |
3887 | ||
252b5132 | 3888 | static void |
99a814a1 | 3889 | ppc_znop (ignore) |
5480ccf3 | 3890 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3891 | { |
3892 | unsigned long insn; | |
3893 | const struct powerpc_opcode *opcode; | |
3894 | expressionS ex; | |
3895 | char *f; | |
252b5132 | 3896 | symbolS *sym; |
252b5132 RH |
3897 | char *symbol_name; |
3898 | char c; | |
3899 | char *name; | |
3900 | unsigned int exp; | |
3901 | flagword flags; | |
3902 | asection *sec; | |
3903 | ||
99a814a1 | 3904 | /* Strip out the symbol name. */ |
252b5132 RH |
3905 | symbol_name = input_line_pointer; |
3906 | c = get_symbol_end (); | |
3907 | ||
3908 | name = xmalloc (input_line_pointer - symbol_name + 1); | |
3909 | strcpy (name, symbol_name); | |
3910 | ||
3911 | sym = symbol_find_or_make (name); | |
3912 | ||
3913 | *input_line_pointer = c; | |
3914 | ||
3915 | SKIP_WHITESPACE (); | |
3916 | ||
3917 | /* Look up the opcode in the hash table. */ | |
3918 | opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop"); | |
3919 | ||
99a814a1 | 3920 | /* Stick in the nop. */ |
252b5132 RH |
3921 | insn = opcode->opcode; |
3922 | ||
3923 | /* Write out the instruction. */ | |
3924 | f = frag_more (4); | |
3925 | md_number_to_chars (f, insn, 4); | |
3926 | fix_new (frag_now, | |
3927 | f - frag_now->fr_literal, | |
3928 | 4, | |
3929 | sym, | |
3930 | 0, | |
3931 | 0, | |
3932 | BFD_RELOC_16_GOT_PCREL); | |
3933 | ||
3934 | } | |
3935 | ||
81d4177b KH |
3936 | /* pseudo-op: |
3937 | behaviour: | |
3938 | errors: | |
99a814a1 AM |
3939 | warnings: */ |
3940 | ||
252b5132 | 3941 | static void |
99a814a1 | 3942 | ppc_pe_comm (lcomm) |
252b5132 RH |
3943 | int lcomm; |
3944 | { | |
3945 | register char *name; | |
3946 | register char c; | |
3947 | register char *p; | |
3948 | offsetT temp; | |
3949 | register symbolS *symbolP; | |
3950 | offsetT align; | |
3951 | ||
3952 | name = input_line_pointer; | |
3953 | c = get_symbol_end (); | |
3954 | ||
99a814a1 | 3955 | /* just after name is now '\0'. */ |
252b5132 RH |
3956 | p = input_line_pointer; |
3957 | *p = c; | |
3958 | SKIP_WHITESPACE (); | |
3959 | if (*input_line_pointer != ',') | |
3960 | { | |
3961 | as_bad (_("Expected comma after symbol-name: rest of line ignored.")); | |
3962 | ignore_rest_of_line (); | |
3963 | return; | |
3964 | } | |
3965 | ||
3966 | input_line_pointer++; /* skip ',' */ | |
3967 | if ((temp = get_absolute_expression ()) < 0) | |
3968 | { | |
3969 | as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp); | |
3970 | ignore_rest_of_line (); | |
3971 | return; | |
3972 | } | |
3973 | ||
3974 | if (! lcomm) | |
3975 | { | |
3976 | /* The third argument to .comm is the alignment. */ | |
3977 | if (*input_line_pointer != ',') | |
3978 | align = 3; | |
3979 | else | |
3980 | { | |
3981 | ++input_line_pointer; | |
3982 | align = get_absolute_expression (); | |
3983 | if (align <= 0) | |
3984 | { | |
3985 | as_warn (_("ignoring bad alignment")); | |
3986 | align = 3; | |
3987 | } | |
3988 | } | |
3989 | } | |
3990 | ||
3991 | *p = 0; | |
3992 | symbolP = symbol_find_or_make (name); | |
3993 | ||
3994 | *p = c; | |
3995 | if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) | |
3996 | { | |
3997 | as_bad (_("Ignoring attempt to re-define symbol `%s'."), | |
3998 | S_GET_NAME (symbolP)); | |
3999 | ignore_rest_of_line (); | |
4000 | return; | |
4001 | } | |
4002 | ||
4003 | if (S_GET_VALUE (symbolP)) | |
4004 | { | |
4005 | if (S_GET_VALUE (symbolP) != (valueT) temp) | |
4006 | as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."), | |
4007 | S_GET_NAME (symbolP), | |
4008 | (long) S_GET_VALUE (symbolP), | |
4009 | (long) temp); | |
4010 | } | |
4011 | else | |
4012 | { | |
4013 | S_SET_VALUE (symbolP, (valueT) temp); | |
4014 | S_SET_EXTERNAL (symbolP); | |
4015 | } | |
4016 | ||
4017 | demand_empty_rest_of_line (); | |
4018 | } | |
4019 | ||
4020 | /* | |
4021 | * implement the .section pseudo op: | |
4022 | * .section name {, "flags"} | |
4023 | * ^ ^ | |
4024 | * | +--- optional flags: 'b' for bss | |
4025 | * | 'i' for info | |
4026 | * +-- section name 'l' for lib | |
4027 | * 'n' for noload | |
4028 | * 'o' for over | |
4029 | * 'w' for data | |
4030 | * 'd' (apparently m88k for data) | |
4031 | * 'x' for text | |
4032 | * But if the argument is not a quoted string, treat it as a | |
4033 | * subsegment number. | |
4034 | * | |
4035 | * FIXME: this is a copy of the section processing from obj-coff.c, with | |
4036 | * additions/changes for the moto-pas assembler support. There are three | |
4037 | * categories: | |
4038 | * | |
81d4177b | 4039 | * FIXME: I just noticed this. This doesn't work at all really. It it |
252b5132 RH |
4040 | * setting bits that bfd probably neither understands or uses. The |
4041 | * correct approach (?) will have to incorporate extra fields attached | |
4042 | * to the section to hold the system specific stuff. (krk) | |
4043 | * | |
4044 | * Section Contents: | |
4045 | * 'a' - unknown - referred to in documentation, but no definition supplied | |
4046 | * 'c' - section has code | |
4047 | * 'd' - section has initialized data | |
4048 | * 'u' - section has uninitialized data | |
4049 | * 'i' - section contains directives (info) | |
4050 | * 'n' - section can be discarded | |
4051 | * 'R' - remove section at link time | |
4052 | * | |
4053 | * Section Protection: | |
4054 | * 'r' - section is readable | |
4055 | * 'w' - section is writeable | |
4056 | * 'x' - section is executable | |
4057 | * 's' - section is sharable | |
4058 | * | |
4059 | * Section Alignment: | |
4060 | * '0' - align to byte boundary | |
4061 | * '1' - align to halfword undary | |
4062 | * '2' - align to word boundary | |
4063 | * '3' - align to doubleword boundary | |
4064 | * '4' - align to quadword boundary | |
4065 | * '5' - align to 32 byte boundary | |
4066 | * '6' - align to 64 byte boundary | |
4067 | * | |
4068 | */ | |
4069 | ||
4070 | void | |
4071 | ppc_pe_section (ignore) | |
5480ccf3 | 4072 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 4073 | { |
99a814a1 | 4074 | /* Strip out the section name. */ |
252b5132 RH |
4075 | char *section_name; |
4076 | char c; | |
4077 | char *name; | |
4078 | unsigned int exp; | |
4079 | flagword flags; | |
4080 | segT sec; | |
4081 | int align; | |
4082 | ||
4083 | section_name = input_line_pointer; | |
4084 | c = get_symbol_end (); | |
4085 | ||
4086 | name = xmalloc (input_line_pointer - section_name + 1); | |
4087 | strcpy (name, section_name); | |
4088 | ||
4089 | *input_line_pointer = c; | |
4090 | ||
4091 | SKIP_WHITESPACE (); | |
4092 | ||
4093 | exp = 0; | |
4094 | flags = SEC_NO_FLAGS; | |
4095 | ||
4096 | if (strcmp (name, ".idata$2") == 0) | |
4097 | { | |
4098 | align = 0; | |
4099 | } | |
4100 | else if (strcmp (name, ".idata$3") == 0) | |
4101 | { | |
4102 | align = 0; | |
4103 | } | |
4104 | else if (strcmp (name, ".idata$4") == 0) | |
4105 | { | |
4106 | align = 2; | |
4107 | } | |
4108 | else if (strcmp (name, ".idata$5") == 0) | |
4109 | { | |
4110 | align = 2; | |
4111 | } | |
4112 | else if (strcmp (name, ".idata$6") == 0) | |
4113 | { | |
4114 | align = 1; | |
4115 | } | |
4116 | else | |
99a814a1 AM |
4117 | /* Default alignment to 16 byte boundary. */ |
4118 | align = 4; | |
252b5132 RH |
4119 | |
4120 | if (*input_line_pointer == ',') | |
4121 | { | |
4122 | ++input_line_pointer; | |
4123 | SKIP_WHITESPACE (); | |
4124 | if (*input_line_pointer != '"') | |
4125 | exp = get_absolute_expression (); | |
4126 | else | |
4127 | { | |
4128 | ++input_line_pointer; | |
4129 | while (*input_line_pointer != '"' | |
4130 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
4131 | { | |
4132 | switch (*input_line_pointer) | |
4133 | { | |
4134 | /* Section Contents */ | |
4135 | case 'a': /* unknown */ | |
4136 | as_bad (_("Unsupported section attribute -- 'a'")); | |
4137 | break; | |
4138 | case 'c': /* code section */ | |
81d4177b | 4139 | flags |= SEC_CODE; |
252b5132 RH |
4140 | break; |
4141 | case 'd': /* section has initialized data */ | |
4142 | flags |= SEC_DATA; | |
4143 | break; | |
4144 | case 'u': /* section has uninitialized data */ | |
4145 | /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA | |
4146 | in winnt.h */ | |
4147 | flags |= SEC_ROM; | |
4148 | break; | |
4149 | case 'i': /* section contains directives (info) */ | |
4150 | /* FIXME: This is IMAGE_SCN_LNK_INFO | |
4151 | in winnt.h */ | |
4152 | flags |= SEC_HAS_CONTENTS; | |
4153 | break; | |
4154 | case 'n': /* section can be discarded */ | |
81d4177b | 4155 | flags &=~ SEC_LOAD; |
252b5132 RH |
4156 | break; |
4157 | case 'R': /* Remove section at link time */ | |
4158 | flags |= SEC_NEVER_LOAD; | |
4159 | break; | |
4160 | ||
4161 | /* Section Protection */ | |
4162 | case 'r': /* section is readable */ | |
4163 | flags |= IMAGE_SCN_MEM_READ; | |
4164 | break; | |
4165 | case 'w': /* section is writeable */ | |
4166 | flags |= IMAGE_SCN_MEM_WRITE; | |
4167 | break; | |
4168 | case 'x': /* section is executable */ | |
4169 | flags |= IMAGE_SCN_MEM_EXECUTE; | |
4170 | break; | |
4171 | case 's': /* section is sharable */ | |
4172 | flags |= IMAGE_SCN_MEM_SHARED; | |
4173 | break; | |
4174 | ||
4175 | /* Section Alignment */ | |
4176 | case '0': /* align to byte boundary */ | |
4177 | flags |= IMAGE_SCN_ALIGN_1BYTES; | |
4178 | align = 0; | |
4179 | break; | |
4180 | case '1': /* align to halfword boundary */ | |
4181 | flags |= IMAGE_SCN_ALIGN_2BYTES; | |
4182 | align = 1; | |
4183 | break; | |
4184 | case '2': /* align to word boundary */ | |
4185 | flags |= IMAGE_SCN_ALIGN_4BYTES; | |
4186 | align = 2; | |
4187 | break; | |
4188 | case '3': /* align to doubleword boundary */ | |
4189 | flags |= IMAGE_SCN_ALIGN_8BYTES; | |
4190 | align = 3; | |
4191 | break; | |
4192 | case '4': /* align to quadword boundary */ | |
4193 | flags |= IMAGE_SCN_ALIGN_16BYTES; | |
4194 | align = 4; | |
4195 | break; | |
4196 | case '5': /* align to 32 byte boundary */ | |
4197 | flags |= IMAGE_SCN_ALIGN_32BYTES; | |
4198 | align = 5; | |
4199 | break; | |
4200 | case '6': /* align to 64 byte boundary */ | |
4201 | flags |= IMAGE_SCN_ALIGN_64BYTES; | |
4202 | align = 6; | |
4203 | break; | |
4204 | ||
4205 | default: | |
99a814a1 AM |
4206 | as_bad (_("unknown section attribute '%c'"), |
4207 | *input_line_pointer); | |
252b5132 RH |
4208 | break; |
4209 | } | |
4210 | ++input_line_pointer; | |
4211 | } | |
4212 | if (*input_line_pointer == '"') | |
4213 | ++input_line_pointer; | |
4214 | } | |
4215 | } | |
4216 | ||
4217 | sec = subseg_new (name, (subsegT) exp); | |
4218 | ||
99a814a1 | 4219 | ppc_set_current_section (sec); |
252b5132 RH |
4220 | |
4221 | if (flags != SEC_NO_FLAGS) | |
4222 | { | |
4223 | if (! bfd_set_section_flags (stdoutput, sec, flags)) | |
4224 | as_bad (_("error setting flags for \"%s\": %s"), | |
4225 | bfd_section_name (stdoutput, sec), | |
4226 | bfd_errmsg (bfd_get_error ())); | |
4227 | } | |
4228 | ||
99a814a1 | 4229 | bfd_set_section_alignment (stdoutput, sec, align); |
252b5132 RH |
4230 | |
4231 | } | |
4232 | ||
4233 | static void | |
4234 | ppc_pe_function (ignore) | |
5480ccf3 | 4235 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4236 | { |
4237 | char *name; | |
4238 | char endc; | |
4239 | symbolS *ext_sym; | |
4240 | ||
4241 | name = input_line_pointer; | |
4242 | endc = get_symbol_end (); | |
4243 | ||
4244 | ext_sym = symbol_find_or_make (name); | |
4245 | ||
4246 | *input_line_pointer = endc; | |
4247 | ||
4248 | S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT); | |
4249 | SF_SET_FUNCTION (ext_sym); | |
4250 | SF_SET_PROCESS (ext_sym); | |
4251 | coff_add_linesym (ext_sym); | |
4252 | ||
4253 | demand_empty_rest_of_line (); | |
4254 | } | |
4255 | ||
4256 | static void | |
4257 | ppc_pe_tocd (ignore) | |
5480ccf3 | 4258 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4259 | { |
4260 | if (tocdata_section == 0) | |
4261 | { | |
4262 | tocdata_section = subseg_new (".tocd", 0); | |
99a814a1 | 4263 | /* FIXME: section flags won't work. */ |
252b5132 RH |
4264 | bfd_set_section_flags (stdoutput, tocdata_section, |
4265 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
99a814a1 | 4266 | | SEC_READONLY | SEC_DATA)); |
252b5132 RH |
4267 | |
4268 | bfd_set_section_alignment (stdoutput, tocdata_section, 2); | |
4269 | } | |
4270 | else | |
4271 | { | |
4272 | rdata_section = subseg_new (".tocd", 0); | |
4273 | } | |
4274 | ||
99a814a1 | 4275 | ppc_set_current_section (tocdata_section); |
252b5132 RH |
4276 | |
4277 | demand_empty_rest_of_line (); | |
4278 | } | |
4279 | ||
4280 | /* Don't adjust TOC relocs to use the section symbol. */ | |
4281 | ||
4282 | int | |
4283 | ppc_pe_fix_adjustable (fix) | |
4284 | fixS *fix; | |
4285 | { | |
4286 | return fix->fx_r_type != BFD_RELOC_PPC_TOC16; | |
4287 | } | |
4288 | ||
4289 | #endif | |
4290 | \f | |
4291 | #ifdef OBJ_XCOFF | |
4292 | ||
4293 | /* XCOFF specific symbol and file handling. */ | |
4294 | ||
4295 | /* Canonicalize the symbol name. We use the to force the suffix, if | |
4296 | any, to use square brackets, and to be in upper case. */ | |
4297 | ||
4298 | char * | |
4299 | ppc_canonicalize_symbol_name (name) | |
4300 | char *name; | |
4301 | { | |
4302 | char *s; | |
4303 | ||
4304 | if (ppc_stab_symbol) | |
4305 | return name; | |
4306 | ||
4307 | for (s = name; *s != '\0' && *s != '{' && *s != '['; s++) | |
4308 | ; | |
4309 | if (*s != '\0') | |
4310 | { | |
4311 | char brac; | |
4312 | ||
4313 | if (*s == '[') | |
4314 | brac = ']'; | |
4315 | else | |
4316 | { | |
4317 | *s = '['; | |
4318 | brac = '}'; | |
4319 | } | |
4320 | ||
4321 | for (s++; *s != '\0' && *s != brac; s++) | |
3882b010 | 4322 | *s = TOUPPER (*s); |
252b5132 RH |
4323 | |
4324 | if (*s == '\0' || s[1] != '\0') | |
4325 | as_bad (_("bad symbol suffix")); | |
4326 | ||
4327 | *s = ']'; | |
4328 | } | |
4329 | ||
4330 | return name; | |
4331 | } | |
4332 | ||
4333 | /* Set the class of a symbol based on the suffix, if any. This is | |
4334 | called whenever a new symbol is created. */ | |
4335 | ||
4336 | void | |
4337 | ppc_symbol_new_hook (sym) | |
4338 | symbolS *sym; | |
4339 | { | |
809ffe0d | 4340 | struct ppc_tc_sy *tc; |
252b5132 RH |
4341 | const char *s; |
4342 | ||
809ffe0d ILT |
4343 | tc = symbol_get_tc (sym); |
4344 | tc->next = NULL; | |
4345 | tc->output = 0; | |
4346 | tc->class = -1; | |
4347 | tc->real_name = NULL; | |
4348 | tc->subseg = 0; | |
4349 | tc->align = 0; | |
4350 | tc->size = NULL; | |
4351 | tc->within = NULL; | |
252b5132 RH |
4352 | |
4353 | if (ppc_stab_symbol) | |
4354 | return; | |
4355 | ||
4356 | s = strchr (S_GET_NAME (sym), '['); | |
4357 | if (s == (const char *) NULL) | |
4358 | { | |
4359 | /* There is no suffix. */ | |
4360 | return; | |
4361 | } | |
4362 | ||
4363 | ++s; | |
4364 | ||
4365 | switch (s[0]) | |
4366 | { | |
4367 | case 'B': | |
4368 | if (strcmp (s, "BS]") == 0) | |
809ffe0d | 4369 | tc->class = XMC_BS; |
252b5132 RH |
4370 | break; |
4371 | case 'D': | |
4372 | if (strcmp (s, "DB]") == 0) | |
809ffe0d | 4373 | tc->class = XMC_DB; |
252b5132 | 4374 | else if (strcmp (s, "DS]") == 0) |
809ffe0d | 4375 | tc->class = XMC_DS; |
252b5132 RH |
4376 | break; |
4377 | case 'G': | |
4378 | if (strcmp (s, "GL]") == 0) | |
809ffe0d | 4379 | tc->class = XMC_GL; |
252b5132 RH |
4380 | break; |
4381 | case 'P': | |
4382 | if (strcmp (s, "PR]") == 0) | |
809ffe0d | 4383 | tc->class = XMC_PR; |
252b5132 RH |
4384 | break; |
4385 | case 'R': | |
4386 | if (strcmp (s, "RO]") == 0) | |
809ffe0d | 4387 | tc->class = XMC_RO; |
252b5132 | 4388 | else if (strcmp (s, "RW]") == 0) |
809ffe0d | 4389 | tc->class = XMC_RW; |
252b5132 RH |
4390 | break; |
4391 | case 'S': | |
4392 | if (strcmp (s, "SV]") == 0) | |
809ffe0d | 4393 | tc->class = XMC_SV; |
252b5132 RH |
4394 | break; |
4395 | case 'T': | |
4396 | if (strcmp (s, "TC]") == 0) | |
809ffe0d | 4397 | tc->class = XMC_TC; |
252b5132 | 4398 | else if (strcmp (s, "TI]") == 0) |
809ffe0d | 4399 | tc->class = XMC_TI; |
252b5132 | 4400 | else if (strcmp (s, "TB]") == 0) |
809ffe0d | 4401 | tc->class = XMC_TB; |
252b5132 | 4402 | else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0) |
809ffe0d | 4403 | tc->class = XMC_TC0; |
252b5132 RH |
4404 | break; |
4405 | case 'U': | |
4406 | if (strcmp (s, "UA]") == 0) | |
809ffe0d | 4407 | tc->class = XMC_UA; |
252b5132 | 4408 | else if (strcmp (s, "UC]") == 0) |
809ffe0d | 4409 | tc->class = XMC_UC; |
252b5132 RH |
4410 | break; |
4411 | case 'X': | |
4412 | if (strcmp (s, "XO]") == 0) | |
809ffe0d | 4413 | tc->class = XMC_XO; |
252b5132 RH |
4414 | break; |
4415 | } | |
4416 | ||
809ffe0d | 4417 | if (tc->class == -1) |
252b5132 RH |
4418 | as_bad (_("Unrecognized symbol suffix")); |
4419 | } | |
4420 | ||
4421 | /* Set the class of a label based on where it is defined. This | |
4422 | handles symbols without suffixes. Also, move the symbol so that it | |
4423 | follows the csect symbol. */ | |
4424 | ||
4425 | void | |
4426 | ppc_frob_label (sym) | |
4427 | symbolS *sym; | |
4428 | { | |
4429 | if (ppc_current_csect != (symbolS *) NULL) | |
4430 | { | |
809ffe0d ILT |
4431 | if (symbol_get_tc (sym)->class == -1) |
4432 | symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class; | |
252b5132 RH |
4433 | |
4434 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
809ffe0d ILT |
4435 | symbol_append (sym, symbol_get_tc (ppc_current_csect)->within, |
4436 | &symbol_rootP, &symbol_lastP); | |
4437 | symbol_get_tc (ppc_current_csect)->within = sym; | |
252b5132 RH |
4438 | } |
4439 | } | |
4440 | ||
4441 | /* This variable is set by ppc_frob_symbol if any absolute symbols are | |
4442 | seen. It tells ppc_adjust_symtab whether it needs to look through | |
4443 | the symbols. */ | |
4444 | ||
4445 | static boolean ppc_saw_abs; | |
4446 | ||
4447 | /* Change the name of a symbol just before writing it out. Set the | |
4448 | real name if the .rename pseudo-op was used. Otherwise, remove any | |
4449 | class suffix. Return 1 if the symbol should not be included in the | |
4450 | symbol table. */ | |
4451 | ||
4452 | int | |
4453 | ppc_frob_symbol (sym) | |
4454 | symbolS *sym; | |
4455 | { | |
4456 | static symbolS *ppc_last_function; | |
4457 | static symbolS *set_end; | |
4458 | ||
4459 | /* Discard symbols that should not be included in the output symbol | |
4460 | table. */ | |
809ffe0d ILT |
4461 | if (! symbol_used_in_reloc_p (sym) |
4462 | && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0 | |
252b5132 | 4463 | || (! S_IS_EXTERNAL (sym) |
809ffe0d | 4464 | && ! symbol_get_tc (sym)->output |
252b5132 RH |
4465 | && S_GET_STORAGE_CLASS (sym) != C_FILE))) |
4466 | return 1; | |
4467 | ||
809ffe0d ILT |
4468 | if (symbol_get_tc (sym)->real_name != (char *) NULL) |
4469 | S_SET_NAME (sym, symbol_get_tc (sym)->real_name); | |
252b5132 RH |
4470 | else |
4471 | { | |
4472 | const char *name; | |
4473 | const char *s; | |
4474 | ||
4475 | name = S_GET_NAME (sym); | |
4476 | s = strchr (name, '['); | |
4477 | if (s != (char *) NULL) | |
4478 | { | |
4479 | unsigned int len; | |
4480 | char *snew; | |
4481 | ||
4482 | len = s - name; | |
4483 | snew = xmalloc (len + 1); | |
4484 | memcpy (snew, name, len); | |
4485 | snew[len] = '\0'; | |
4486 | ||
4487 | S_SET_NAME (sym, snew); | |
4488 | } | |
4489 | } | |
4490 | ||
4491 | if (set_end != (symbolS *) NULL) | |
4492 | { | |
4493 | SA_SET_SYM_ENDNDX (set_end, sym); | |
4494 | set_end = NULL; | |
4495 | } | |
4496 | ||
4497 | if (SF_GET_FUNCTION (sym)) | |
4498 | { | |
4499 | if (ppc_last_function != (symbolS *) NULL) | |
4500 | as_bad (_("two .function pseudo-ops with no intervening .ef")); | |
4501 | ppc_last_function = sym; | |
809ffe0d | 4502 | if (symbol_get_tc (sym)->size != (symbolS *) NULL) |
252b5132 | 4503 | { |
6386f3a7 | 4504 | resolve_symbol_value (symbol_get_tc (sym)->size); |
809ffe0d ILT |
4505 | SA_SET_SYM_FSIZE (sym, |
4506 | (long) S_GET_VALUE (symbol_get_tc (sym)->size)); | |
252b5132 RH |
4507 | } |
4508 | } | |
4509 | else if (S_GET_STORAGE_CLASS (sym) == C_FCN | |
4510 | && strcmp (S_GET_NAME (sym), ".ef") == 0) | |
4511 | { | |
4512 | if (ppc_last_function == (symbolS *) NULL) | |
4513 | as_bad (_(".ef with no preceding .function")); | |
4514 | else | |
4515 | { | |
4516 | set_end = ppc_last_function; | |
4517 | ppc_last_function = NULL; | |
4518 | ||
4519 | /* We don't have a C_EFCN symbol, but we need to force the | |
4520 | COFF backend to believe that it has seen one. */ | |
4521 | coff_last_function = NULL; | |
4522 | } | |
4523 | } | |
4524 | ||
4525 | if (! S_IS_EXTERNAL (sym) | |
809ffe0d | 4526 | && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0 |
252b5132 RH |
4527 | && S_GET_STORAGE_CLASS (sym) != C_FILE |
4528 | && S_GET_STORAGE_CLASS (sym) != C_FCN | |
4529 | && S_GET_STORAGE_CLASS (sym) != C_BLOCK | |
4530 | && S_GET_STORAGE_CLASS (sym) != C_BSTAT | |
4531 | && S_GET_STORAGE_CLASS (sym) != C_ESTAT | |
4532 | && S_GET_STORAGE_CLASS (sym) != C_BINCL | |
4533 | && S_GET_STORAGE_CLASS (sym) != C_EINCL | |
4534 | && S_GET_SEGMENT (sym) != ppc_coff_debug_section) | |
4535 | S_SET_STORAGE_CLASS (sym, C_HIDEXT); | |
4536 | ||
4537 | if (S_GET_STORAGE_CLASS (sym) == C_EXT | |
4538 | || S_GET_STORAGE_CLASS (sym) == C_HIDEXT) | |
4539 | { | |
4540 | int i; | |
4541 | union internal_auxent *a; | |
4542 | ||
4543 | /* Create a csect aux. */ | |
4544 | i = S_GET_NUMBER_AUXILIARY (sym); | |
4545 | S_SET_NUMBER_AUXILIARY (sym, i + 1); | |
809ffe0d ILT |
4546 | a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent; |
4547 | if (symbol_get_tc (sym)->class == XMC_TC0) | |
252b5132 RH |
4548 | { |
4549 | /* This is the TOC table. */ | |
4550 | know (strcmp (S_GET_NAME (sym), "TOC") == 0); | |
4551 | a->x_csect.x_scnlen.l = 0; | |
4552 | a->x_csect.x_smtyp = (2 << 3) | XTY_SD; | |
4553 | } | |
809ffe0d | 4554 | else if (symbol_get_tc (sym)->subseg != 0) |
252b5132 RH |
4555 | { |
4556 | /* This is a csect symbol. x_scnlen is the size of the | |
4557 | csect. */ | |
809ffe0d | 4558 | if (symbol_get_tc (sym)->next == (symbolS *) NULL) |
252b5132 RH |
4559 | a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput, |
4560 | S_GET_SEGMENT (sym)) | |
4561 | - S_GET_VALUE (sym)); | |
4562 | else | |
4563 | { | |
6386f3a7 | 4564 | resolve_symbol_value (symbol_get_tc (sym)->next); |
809ffe0d | 4565 | a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next) |
252b5132 RH |
4566 | - S_GET_VALUE (sym)); |
4567 | } | |
809ffe0d | 4568 | a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD; |
252b5132 RH |
4569 | } |
4570 | else if (S_GET_SEGMENT (sym) == bss_section) | |
4571 | { | |
4572 | /* This is a common symbol. */ | |
809ffe0d ILT |
4573 | a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset; |
4574 | a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM; | |
252b5132 | 4575 | if (S_IS_EXTERNAL (sym)) |
809ffe0d | 4576 | symbol_get_tc (sym)->class = XMC_RW; |
252b5132 | 4577 | else |
809ffe0d | 4578 | symbol_get_tc (sym)->class = XMC_BS; |
252b5132 RH |
4579 | } |
4580 | else if (S_GET_SEGMENT (sym) == absolute_section) | |
4581 | { | |
4582 | /* This is an absolute symbol. The csect will be created by | |
99a814a1 | 4583 | ppc_adjust_symtab. */ |
252b5132 RH |
4584 | ppc_saw_abs = true; |
4585 | a->x_csect.x_smtyp = XTY_LD; | |
809ffe0d ILT |
4586 | if (symbol_get_tc (sym)->class == -1) |
4587 | symbol_get_tc (sym)->class = XMC_XO; | |
252b5132 RH |
4588 | } |
4589 | else if (! S_IS_DEFINED (sym)) | |
4590 | { | |
4591 | /* This is an external symbol. */ | |
4592 | a->x_csect.x_scnlen.l = 0; | |
4593 | a->x_csect.x_smtyp = XTY_ER; | |
4594 | } | |
809ffe0d | 4595 | else if (symbol_get_tc (sym)->class == XMC_TC) |
252b5132 RH |
4596 | { |
4597 | symbolS *next; | |
4598 | ||
4599 | /* This is a TOC definition. x_scnlen is the size of the | |
4600 | TOC entry. */ | |
4601 | next = symbol_next (sym); | |
809ffe0d | 4602 | while (symbol_get_tc (next)->class == XMC_TC0) |
252b5132 RH |
4603 | next = symbol_next (next); |
4604 | if (next == (symbolS *) NULL | |
809ffe0d | 4605 | || symbol_get_tc (next)->class != XMC_TC) |
252b5132 RH |
4606 | { |
4607 | if (ppc_after_toc_frag == (fragS *) NULL) | |
4608 | a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput, | |
4609 | data_section) | |
4610 | - S_GET_VALUE (sym)); | |
4611 | else | |
4612 | a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address | |
4613 | - S_GET_VALUE (sym)); | |
4614 | } | |
4615 | else | |
4616 | { | |
6386f3a7 | 4617 | resolve_symbol_value (next); |
252b5132 RH |
4618 | a->x_csect.x_scnlen.l = (S_GET_VALUE (next) |
4619 | - S_GET_VALUE (sym)); | |
4620 | } | |
4621 | a->x_csect.x_smtyp = (2 << 3) | XTY_SD; | |
4622 | } | |
4623 | else | |
4624 | { | |
4625 | symbolS *csect; | |
4626 | ||
4627 | /* This is a normal symbol definition. x_scnlen is the | |
4628 | symbol index of the containing csect. */ | |
4629 | if (S_GET_SEGMENT (sym) == text_section) | |
4630 | csect = ppc_text_csects; | |
4631 | else if (S_GET_SEGMENT (sym) == data_section) | |
4632 | csect = ppc_data_csects; | |
4633 | else | |
4634 | abort (); | |
4635 | ||
4636 | /* Skip the initial dummy symbol. */ | |
809ffe0d | 4637 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
4638 | |
4639 | if (csect == (symbolS *) NULL) | |
4640 | { | |
4641 | as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym)); | |
4642 | a->x_csect.x_scnlen.l = 0; | |
4643 | } | |
4644 | else | |
4645 | { | |
809ffe0d | 4646 | while (symbol_get_tc (csect)->next != (symbolS *) NULL) |
252b5132 | 4647 | { |
6386f3a7 | 4648 | resolve_symbol_value (symbol_get_tc (csect)->next); |
809ffe0d ILT |
4649 | if (S_GET_VALUE (symbol_get_tc (csect)->next) |
4650 | > S_GET_VALUE (sym)) | |
252b5132 | 4651 | break; |
809ffe0d | 4652 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
4653 | } |
4654 | ||
809ffe0d ILT |
4655 | a->x_csect.x_scnlen.p = |
4656 | coffsymbol (symbol_get_bfdsym (csect))->native; | |
4657 | coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen = | |
4658 | 1; | |
252b5132 RH |
4659 | } |
4660 | a->x_csect.x_smtyp = XTY_LD; | |
4661 | } | |
81d4177b | 4662 | |
252b5132 RH |
4663 | a->x_csect.x_parmhash = 0; |
4664 | a->x_csect.x_snhash = 0; | |
809ffe0d | 4665 | if (symbol_get_tc (sym)->class == -1) |
252b5132 RH |
4666 | a->x_csect.x_smclas = XMC_PR; |
4667 | else | |
809ffe0d | 4668 | a->x_csect.x_smclas = symbol_get_tc (sym)->class; |
252b5132 RH |
4669 | a->x_csect.x_stab = 0; |
4670 | a->x_csect.x_snstab = 0; | |
4671 | ||
4672 | /* Don't let the COFF backend resort these symbols. */ | |
809ffe0d | 4673 | symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END; |
252b5132 RH |
4674 | } |
4675 | else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT) | |
4676 | { | |
4677 | /* We want the value to be the symbol index of the referenced | |
4678 | csect symbol. BFD will do that for us if we set the right | |
4679 | flags. */ | |
4680 | S_SET_VALUE (sym, | |
809ffe0d ILT |
4681 | ((valueT) |
4682 | coffsymbol (symbol_get_bfdsym | |
4683 | (symbol_get_tc (sym)->within))->native)); | |
4684 | coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1; | |
252b5132 RH |
4685 | } |
4686 | else if (S_GET_STORAGE_CLASS (sym) == C_STSYM) | |
4687 | { | |
4688 | symbolS *block; | |
4689 | symbolS *csect; | |
4690 | ||
4691 | /* The value is the offset from the enclosing csect. */ | |
809ffe0d ILT |
4692 | block = symbol_get_tc (sym)->within; |
4693 | csect = symbol_get_tc (block)->within; | |
6386f3a7 | 4694 | resolve_symbol_value (csect); |
252b5132 RH |
4695 | S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect)); |
4696 | } | |
4697 | else if (S_GET_STORAGE_CLASS (sym) == C_BINCL | |
4698 | || S_GET_STORAGE_CLASS (sym) == C_EINCL) | |
4699 | { | |
4700 | /* We want the value to be a file offset into the line numbers. | |
99a814a1 AM |
4701 | BFD will do that for us if we set the right flags. We have |
4702 | already set the value correctly. */ | |
809ffe0d | 4703 | coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1; |
252b5132 RH |
4704 | } |
4705 | ||
4706 | return 0; | |
4707 | } | |
4708 | ||
4709 | /* Adjust the symbol table. This creates csect symbols for all | |
4710 | absolute symbols. */ | |
4711 | ||
4712 | void | |
4713 | ppc_adjust_symtab () | |
4714 | { | |
4715 | symbolS *sym; | |
4716 | ||
4717 | if (! ppc_saw_abs) | |
4718 | return; | |
4719 | ||
4720 | for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym)) | |
4721 | { | |
4722 | symbolS *csect; | |
4723 | int i; | |
4724 | union internal_auxent *a; | |
4725 | ||
4726 | if (S_GET_SEGMENT (sym) != absolute_section) | |
4727 | continue; | |
4728 | ||
4729 | csect = symbol_create (".abs[XO]", absolute_section, | |
4730 | S_GET_VALUE (sym), &zero_address_frag); | |
809ffe0d | 4731 | symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym); |
252b5132 RH |
4732 | S_SET_STORAGE_CLASS (csect, C_HIDEXT); |
4733 | i = S_GET_NUMBER_AUXILIARY (csect); | |
4734 | S_SET_NUMBER_AUXILIARY (csect, i + 1); | |
809ffe0d | 4735 | a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent; |
252b5132 RH |
4736 | a->x_csect.x_scnlen.l = 0; |
4737 | a->x_csect.x_smtyp = XTY_SD; | |
4738 | a->x_csect.x_parmhash = 0; | |
4739 | a->x_csect.x_snhash = 0; | |
4740 | a->x_csect.x_smclas = XMC_XO; | |
4741 | a->x_csect.x_stab = 0; | |
4742 | a->x_csect.x_snstab = 0; | |
4743 | ||
4744 | symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP); | |
4745 | ||
4746 | i = S_GET_NUMBER_AUXILIARY (sym); | |
809ffe0d ILT |
4747 | a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent; |
4748 | a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native; | |
4749 | coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1; | |
252b5132 RH |
4750 | } |
4751 | ||
4752 | ppc_saw_abs = false; | |
4753 | } | |
4754 | ||
4755 | /* Set the VMA for a section. This is called on all the sections in | |
4756 | turn. */ | |
4757 | ||
4758 | void | |
4759 | ppc_frob_section (sec) | |
4760 | asection *sec; | |
4761 | { | |
4762 | static bfd_size_type vma = 0; | |
4763 | ||
4764 | bfd_set_section_vma (stdoutput, sec, vma); | |
4765 | vma += bfd_section_size (stdoutput, sec); | |
4766 | } | |
4767 | ||
4768 | #endif /* OBJ_XCOFF */ | |
4769 | \f | |
4770 | /* Turn a string in input_line_pointer into a floating point constant | |
bc0d738a NC |
4771 | of type TYPE, and store the appropriate bytes in *LITP. The number |
4772 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
252b5132 RH |
4773 | returned, or NULL on OK. */ |
4774 | ||
4775 | char * | |
4776 | md_atof (type, litp, sizep) | |
4777 | int type; | |
4778 | char *litp; | |
4779 | int *sizep; | |
4780 | { | |
4781 | int prec; | |
4782 | LITTLENUM_TYPE words[4]; | |
4783 | char *t; | |
4784 | int i; | |
4785 | ||
4786 | switch (type) | |
4787 | { | |
4788 | case 'f': | |
4789 | prec = 2; | |
4790 | break; | |
4791 | ||
4792 | case 'd': | |
4793 | prec = 4; | |
4794 | break; | |
4795 | ||
4796 | default: | |
4797 | *sizep = 0; | |
4798 | return _("bad call to md_atof"); | |
4799 | } | |
4800 | ||
4801 | t = atof_ieee (input_line_pointer, type, words); | |
4802 | if (t) | |
4803 | input_line_pointer = t; | |
4804 | ||
4805 | *sizep = prec * 2; | |
4806 | ||
4807 | if (target_big_endian) | |
4808 | { | |
4809 | for (i = 0; i < prec; i++) | |
4810 | { | |
4811 | md_number_to_chars (litp, (valueT) words[i], 2); | |
4812 | litp += 2; | |
4813 | } | |
4814 | } | |
4815 | else | |
4816 | { | |
4817 | for (i = prec - 1; i >= 0; i--) | |
4818 | { | |
4819 | md_number_to_chars (litp, (valueT) words[i], 2); | |
4820 | litp += 2; | |
4821 | } | |
4822 | } | |
81d4177b | 4823 | |
252b5132 RH |
4824 | return NULL; |
4825 | } | |
4826 | ||
4827 | /* Write a value out to the object file, using the appropriate | |
4828 | endianness. */ | |
4829 | ||
4830 | void | |
4831 | md_number_to_chars (buf, val, n) | |
4832 | char *buf; | |
4833 | valueT val; | |
4834 | int n; | |
4835 | { | |
4836 | if (target_big_endian) | |
4837 | number_to_chars_bigendian (buf, val, n); | |
4838 | else | |
4839 | number_to_chars_littleendian (buf, val, n); | |
4840 | } | |
4841 | ||
4842 | /* Align a section (I don't know why this is machine dependent). */ | |
4843 | ||
4844 | valueT | |
4845 | md_section_align (seg, addr) | |
4846 | asection *seg; | |
4847 | valueT addr; | |
4848 | { | |
4849 | int align = bfd_get_section_alignment (stdoutput, seg); | |
4850 | ||
4851 | return ((addr + (1 << align) - 1) & (-1 << align)); | |
4852 | } | |
4853 | ||
4854 | /* We don't have any form of relaxing. */ | |
4855 | ||
4856 | int | |
4857 | md_estimate_size_before_relax (fragp, seg) | |
92161534 ILT |
4858 | fragS *fragp ATTRIBUTE_UNUSED; |
4859 | asection *seg ATTRIBUTE_UNUSED; | |
252b5132 RH |
4860 | { |
4861 | abort (); | |
4862 | return 0; | |
4863 | } | |
4864 | ||
4865 | /* Convert a machine dependent frag. We never generate these. */ | |
4866 | ||
4867 | void | |
4868 | md_convert_frag (abfd, sec, fragp) | |
92161534 ILT |
4869 | bfd *abfd ATTRIBUTE_UNUSED; |
4870 | asection *sec ATTRIBUTE_UNUSED; | |
4871 | fragS *fragp ATTRIBUTE_UNUSED; | |
252b5132 RH |
4872 | { |
4873 | abort (); | |
4874 | } | |
4875 | ||
4876 | /* We have no need to default values of symbols. */ | |
4877 | ||
252b5132 RH |
4878 | symbolS * |
4879 | md_undefined_symbol (name) | |
92161534 | 4880 | char *name ATTRIBUTE_UNUSED; |
252b5132 RH |
4881 | { |
4882 | return 0; | |
4883 | } | |
4884 | \f | |
4885 | /* Functions concerning relocs. */ | |
4886 | ||
4887 | /* The location from which a PC relative jump should be calculated, | |
4888 | given a PC relative reloc. */ | |
4889 | ||
4890 | long | |
4891 | md_pcrel_from_section (fixp, sec) | |
4892 | fixS *fixp; | |
92161534 | 4893 | segT sec ATTRIBUTE_UNUSED; |
252b5132 RH |
4894 | { |
4895 | return fixp->fx_frag->fr_address + fixp->fx_where; | |
4896 | } | |
4897 | ||
4898 | #ifdef OBJ_XCOFF | |
4899 | ||
4900 | /* This is called to see whether a fixup should be adjusted to use a | |
4901 | section symbol. We take the opportunity to change a fixup against | |
4902 | a symbol in the TOC subsegment into a reloc against the | |
4903 | corresponding .tc symbol. */ | |
4904 | ||
4905 | int | |
4906 | ppc_fix_adjustable (fix) | |
4907 | fixS *fix; | |
4908 | { | |
4909 | valueT val; | |
4910 | ||
6386f3a7 | 4911 | resolve_symbol_value (fix->fx_addsy); |
252b5132 RH |
4912 | val = S_GET_VALUE (fix->fx_addsy); |
4913 | if (ppc_toc_csect != (symbolS *) NULL | |
4914 | && fix->fx_addsy != (symbolS *) NULL | |
4915 | && fix->fx_addsy != ppc_toc_csect | |
4916 | && S_GET_SEGMENT (fix->fx_addsy) == data_section | |
4917 | && val >= ppc_toc_frag->fr_address | |
4918 | && (ppc_after_toc_frag == (fragS *) NULL | |
4919 | || val < ppc_after_toc_frag->fr_address)) | |
4920 | { | |
4921 | symbolS *sy; | |
4922 | ||
4923 | for (sy = symbol_next (ppc_toc_csect); | |
4924 | sy != (symbolS *) NULL; | |
4925 | sy = symbol_next (sy)) | |
4926 | { | |
809ffe0d | 4927 | if (symbol_get_tc (sy)->class == XMC_TC0) |
252b5132 | 4928 | continue; |
809ffe0d | 4929 | if (symbol_get_tc (sy)->class != XMC_TC) |
252b5132 | 4930 | break; |
6386f3a7 | 4931 | resolve_symbol_value (sy); |
252b5132 RH |
4932 | if (val == S_GET_VALUE (sy)) |
4933 | { | |
4934 | fix->fx_addsy = sy; | |
4935 | fix->fx_addnumber = val - ppc_toc_frag->fr_address; | |
4936 | return 0; | |
4937 | } | |
4938 | } | |
4939 | ||
4940 | as_bad_where (fix->fx_file, fix->fx_line, | |
4941 | _("symbol in .toc does not match any .tc")); | |
4942 | } | |
4943 | ||
4944 | /* Possibly adjust the reloc to be against the csect. */ | |
4945 | if (fix->fx_addsy != (symbolS *) NULL | |
809ffe0d ILT |
4946 | && symbol_get_tc (fix->fx_addsy)->subseg == 0 |
4947 | && symbol_get_tc (fix->fx_addsy)->class != XMC_TC0 | |
4948 | && symbol_get_tc (fix->fx_addsy)->class != XMC_TC | |
252b5132 RH |
4949 | && S_GET_SEGMENT (fix->fx_addsy) != bss_section |
4950 | /* Don't adjust if this is a reloc in the toc section. */ | |
4951 | && (S_GET_SEGMENT (fix->fx_addsy) != data_section | |
4952 | || ppc_toc_csect == NULL | |
4953 | || val < ppc_toc_frag->fr_address | |
4954 | || (ppc_after_toc_frag != NULL | |
4955 | && val >= ppc_after_toc_frag->fr_address))) | |
4956 | { | |
4957 | symbolS *csect; | |
4958 | ||
4959 | if (S_GET_SEGMENT (fix->fx_addsy) == text_section) | |
4960 | csect = ppc_text_csects; | |
4961 | else if (S_GET_SEGMENT (fix->fx_addsy) == data_section) | |
4962 | csect = ppc_data_csects; | |
4963 | else | |
4964 | abort (); | |
4965 | ||
4966 | /* Skip the initial dummy symbol. */ | |
809ffe0d | 4967 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
4968 | |
4969 | if (csect != (symbolS *) NULL) | |
4970 | { | |
809ffe0d ILT |
4971 | while (symbol_get_tc (csect)->next != (symbolS *) NULL |
4972 | && (symbol_get_frag (symbol_get_tc (csect)->next)->fr_address | |
2c1c4c62 | 4973 | <= val)) |
252b5132 RH |
4974 | { |
4975 | /* If the csect address equals the symbol value, then we | |
99a814a1 AM |
4976 | have to look through the full symbol table to see |
4977 | whether this is the csect we want. Note that we will | |
4978 | only get here if the csect has zero length. */ | |
2c1c4c62 | 4979 | if ((symbol_get_frag (csect)->fr_address == val) |
252b5132 RH |
4980 | && S_GET_VALUE (csect) == S_GET_VALUE (fix->fx_addsy)) |
4981 | { | |
4982 | symbolS *scan; | |
4983 | ||
809ffe0d | 4984 | for (scan = symbol_next (csect); |
252b5132 | 4985 | scan != NULL; |
809ffe0d | 4986 | scan = symbol_next (scan)) |
252b5132 | 4987 | { |
809ffe0d | 4988 | if (symbol_get_tc (scan)->subseg != 0) |
252b5132 RH |
4989 | break; |
4990 | if (scan == fix->fx_addsy) | |
4991 | break; | |
4992 | } | |
4993 | ||
4994 | /* If we found the symbol before the next csect | |
99a814a1 | 4995 | symbol, then this is the csect we want. */ |
252b5132 RH |
4996 | if (scan == fix->fx_addsy) |
4997 | break; | |
4998 | } | |
4999 | ||
809ffe0d | 5000 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
5001 | } |
5002 | ||
5003 | fix->fx_offset += (S_GET_VALUE (fix->fx_addsy) | |
809ffe0d | 5004 | - symbol_get_frag (csect)->fr_address); |
252b5132 RH |
5005 | fix->fx_addsy = csect; |
5006 | } | |
5007 | } | |
5008 | ||
5009 | /* Adjust a reloc against a .lcomm symbol to be against the base | |
5010 | .lcomm. */ | |
5011 | if (fix->fx_addsy != (symbolS *) NULL | |
5012 | && S_GET_SEGMENT (fix->fx_addsy) == bss_section | |
5013 | && ! S_IS_EXTERNAL (fix->fx_addsy)) | |
5014 | { | |
6386f3a7 | 5015 | resolve_symbol_value (symbol_get_frag (fix->fx_addsy)->fr_symbol); |
809ffe0d ILT |
5016 | fix->fx_offset += |
5017 | (S_GET_VALUE (fix->fx_addsy) | |
5018 | - S_GET_VALUE (symbol_get_frag (fix->fx_addsy)->fr_symbol)); | |
5019 | fix->fx_addsy = symbol_get_frag (fix->fx_addsy)->fr_symbol; | |
252b5132 RH |
5020 | } |
5021 | ||
5022 | return 0; | |
5023 | } | |
5024 | ||
5025 | /* A reloc from one csect to another must be kept. The assembler | |
5026 | will, of course, keep relocs between sections, and it will keep | |
5027 | absolute relocs, but we need to force it to keep PC relative relocs | |
5028 | between two csects in the same section. */ | |
5029 | ||
5030 | int | |
5031 | ppc_force_relocation (fix) | |
5032 | fixS *fix; | |
5033 | { | |
5034 | /* At this point fix->fx_addsy should already have been converted to | |
5035 | a csect symbol. If the csect does not include the fragment, then | |
5036 | we need to force the relocation. */ | |
5037 | if (fix->fx_pcrel | |
5038 | && fix->fx_addsy != NULL | |
809ffe0d ILT |
5039 | && symbol_get_tc (fix->fx_addsy)->subseg != 0 |
5040 | && ((symbol_get_frag (fix->fx_addsy)->fr_address | |
5041 | > fix->fx_frag->fr_address) | |
5042 | || (symbol_get_tc (fix->fx_addsy)->next != NULL | |
5043 | && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address | |
252b5132 RH |
5044 | <= fix->fx_frag->fr_address)))) |
5045 | return 1; | |
5046 | ||
5047 | return 0; | |
5048 | } | |
5049 | ||
5050 | #endif /* OBJ_XCOFF */ | |
5051 | ||
0baf16f2 AM |
5052 | #ifdef OBJ_ELF |
5053 | int | |
5054 | ppc_fix_adjustable (fix) | |
5055 | fixS *fix; | |
252b5132 | 5056 | { |
0baf16f2 AM |
5057 | return (fix->fx_r_type != BFD_RELOC_16_GOTOFF |
5058 | && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF | |
5059 | && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF | |
5060 | && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF | |
5061 | && fix->fx_r_type != BFD_RELOC_GPREL16 | |
5062 | && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT | |
5063 | && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY | |
5064 | && ! S_IS_EXTERNAL (fix->fx_addsy) | |
5065 | && ! S_IS_WEAK (fix->fx_addsy) | |
5066 | && (fix->fx_pcrel | |
5067 | || (fix->fx_subsy != NULL | |
5068 | && (S_GET_SEGMENT (fix->fx_subsy) | |
5069 | == S_GET_SEGMENT (fix->fx_addsy))) | |
5070 | || S_IS_LOCAL (fix->fx_addsy))); | |
252b5132 | 5071 | } |
0baf16f2 | 5072 | #endif |
252b5132 RH |
5073 | |
5074 | /* Apply a fixup to the object code. This is called for all the | |
5075 | fixups we generated by the call to fix_new_exp, above. In the call | |
5076 | above we used a reloc code which was the largest legal reloc code | |
5077 | plus the operand index. Here we undo that to recover the operand | |
5078 | index. At this point all symbol values should be fully resolved, | |
5079 | and we attempt to completely resolve the reloc. If we can not do | |
5080 | that, we determine the correct reloc code and put it back in the | |
5081 | fixup. */ | |
5082 | ||
94f592af NC |
5083 | void |
5084 | md_apply_fix3 (fixP, valP, seg) | |
5085 | fixS *fixP; | |
5086 | valueT * valP; | |
0baf16f2 | 5087 | segT seg ATTRIBUTE_UNUSED; |
252b5132 | 5088 | { |
94f592af | 5089 | valueT value = * valP; |
252b5132 RH |
5090 | |
5091 | #ifdef OBJ_ELF | |
94f592af | 5092 | if (fixP->fx_addsy != NULL) |
252b5132 RH |
5093 | { |
5094 | /* `*valuep' may contain the value of the symbol on which the reloc | |
5095 | will be based; we have to remove it. */ | |
94f592af NC |
5096 | if (symbol_used_in_reloc_p (fixP->fx_addsy) |
5097 | && S_GET_SEGMENT (fixP->fx_addsy) != absolute_section | |
5098 | && S_GET_SEGMENT (fixP->fx_addsy) != undefined_section | |
5099 | && ! bfd_is_com_section (S_GET_SEGMENT (fixP->fx_addsy))) | |
5100 | value -= S_GET_VALUE (fixP->fx_addsy); | |
252b5132 RH |
5101 | |
5102 | /* FIXME: Why '+'? Better yet, what exactly is '*valuep' | |
5103 | supposed to be? I think this is related to various similar | |
5104 | FIXMEs in tc-i386.c and tc-sparc.c. */ | |
94f592af NC |
5105 | if (fixP->fx_pcrel) |
5106 | value += fixP->fx_frag->fr_address + fixP->fx_where; | |
252b5132 RH |
5107 | } |
5108 | else | |
94f592af | 5109 | fixP->fx_done = 1; |
252b5132 RH |
5110 | #else |
5111 | /* FIXME FIXME FIXME: The value we are passed in *valuep includes | |
5112 | the symbol values. Since we are using BFD_ASSEMBLER, if we are | |
5113 | doing this relocation the code in write.c is going to call | |
5114 | bfd_install_relocation, which is also going to use the symbol | |
5115 | value. That means that if the reloc is fully resolved we want to | |
5116 | use *valuep since bfd_install_relocation is not being used. | |
5117 | However, if the reloc is not fully resolved we do not want to use | |
5118 | *valuep, and must use fx_offset instead. However, if the reloc | |
5119 | is PC relative, we do want to use *valuep since it includes the | |
5120 | result of md_pcrel_from. This is confusing. */ | |
94f592af NC |
5121 | if (fixP->fx_addsy == (symbolS *) NULL) |
5122 | fixP->fx_done = 1; | |
5123 | ||
5124 | else if (fixP->fx_pcrel) | |
5125 | ; | |
5126 | ||
252b5132 RH |
5127 | else |
5128 | { | |
94f592af NC |
5129 | value = fixP->fx_offset; |
5130 | if (fixP->fx_subsy != (symbolS *) NULL) | |
252b5132 | 5131 | { |
94f592af NC |
5132 | if (S_GET_SEGMENT (fixP->fx_subsy) == absolute_section) |
5133 | value -= S_GET_VALUE (fixP->fx_subsy); | |
252b5132 RH |
5134 | else |
5135 | { | |
5136 | /* We can't actually support subtracting a symbol. */ | |
94f592af | 5137 | as_bad_where (fixP->fx_file, fixP->fx_line, |
252b5132 RH |
5138 | _("expression too complex")); |
5139 | } | |
5140 | } | |
5141 | } | |
5142 | #endif | |
5143 | ||
94f592af | 5144 | if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED) |
252b5132 RH |
5145 | { |
5146 | int opindex; | |
5147 | const struct powerpc_operand *operand; | |
5148 | char *where; | |
5149 | unsigned long insn; | |
5150 | ||
94f592af | 5151 | opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED; |
252b5132 RH |
5152 | |
5153 | operand = &powerpc_operands[opindex]; | |
5154 | ||
5155 | #ifdef OBJ_XCOFF | |
0baf16f2 AM |
5156 | /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol |
5157 | does not generate a reloc. It uses the offset of `sym' within its | |
5158 | csect. Other usages, such as `.long sym', generate relocs. This | |
5159 | is the documented behaviour of non-TOC symbols. */ | |
252b5132 RH |
5160 | if ((operand->flags & PPC_OPERAND_PARENS) != 0 |
5161 | && operand->bits == 16 | |
5162 | && operand->shift == 0 | |
5163 | && operand->insert == NULL | |
94f592af NC |
5164 | && fixP->fx_addsy != NULL |
5165 | && symbol_get_tc (fixP->fx_addsy)->subseg != 0 | |
5166 | && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC | |
5167 | && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC0 | |
5168 | && S_GET_SEGMENT (fixP->fx_addsy) != bss_section) | |
252b5132 | 5169 | { |
94f592af NC |
5170 | value = fixP->fx_offset; |
5171 | fixP->fx_done = 1; | |
252b5132 RH |
5172 | } |
5173 | #endif | |
5174 | ||
5175 | /* Fetch the instruction, insert the fully resolved operand | |
5176 | value, and stuff the instruction back again. */ | |
94f592af | 5177 | where = fixP->fx_frag->fr_literal + fixP->fx_where; |
252b5132 RH |
5178 | if (target_big_endian) |
5179 | insn = bfd_getb32 ((unsigned char *) where); | |
5180 | else | |
5181 | insn = bfd_getl32 ((unsigned char *) where); | |
5182 | insn = ppc_insert_operand (insn, operand, (offsetT) value, | |
94f592af | 5183 | fixP->fx_file, fixP->fx_line); |
252b5132 RH |
5184 | if (target_big_endian) |
5185 | bfd_putb32 ((bfd_vma) insn, (unsigned char *) where); | |
5186 | else | |
5187 | bfd_putl32 ((bfd_vma) insn, (unsigned char *) where); | |
5188 | ||
94f592af NC |
5189 | if (fixP->fx_done) |
5190 | /* Nothing else to do here. */ | |
5191 | return; | |
252b5132 | 5192 | |
94f592af | 5193 | assert (fixP->fx_addsy != NULL); |
0baf16f2 | 5194 | |
252b5132 RH |
5195 | /* Determine a BFD reloc value based on the operand information. |
5196 | We are only prepared to turn a few of the operands into | |
0baf16f2 | 5197 | relocs. */ |
11b37b7b AM |
5198 | if ((operand->flags & PPC_OPERAND_RELATIVE) != 0 |
5199 | && operand->bits == 26 | |
5200 | && operand->shift == 0) | |
94f592af | 5201 | fixP->fx_r_type = BFD_RELOC_PPC_B26; |
11b37b7b AM |
5202 | else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0 |
5203 | && operand->bits == 16 | |
5204 | && operand->shift == 0) | |
94f592af | 5205 | fixP->fx_r_type = BFD_RELOC_PPC_B16; |
11b37b7b AM |
5206 | else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0 |
5207 | && operand->bits == 26 | |
5208 | && operand->shift == 0) | |
94f592af | 5209 | fixP->fx_r_type = BFD_RELOC_PPC_BA26; |
11b37b7b AM |
5210 | else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0 |
5211 | && operand->bits == 16 | |
5212 | && operand->shift == 0) | |
94f592af | 5213 | fixP->fx_r_type = BFD_RELOC_PPC_BA16; |
0baf16f2 | 5214 | #if defined (OBJ_XCOFF) || defined (OBJ_ELF) |
11b37b7b AM |
5215 | else if ((operand->flags & PPC_OPERAND_PARENS) != 0 |
5216 | && operand->bits == 16 | |
5217 | && operand->shift == 0 | |
94f592af | 5218 | && ppc_is_toc_sym (fixP->fx_addsy)) |
11b37b7b | 5219 | { |
94f592af | 5220 | fixP->fx_r_type = BFD_RELOC_PPC_TOC16; |
0baf16f2 AM |
5221 | #ifdef OBJ_ELF |
5222 | if (BFD_DEFAULT_TARGET_SIZE == 64 | |
9c7977b3 | 5223 | && ppc_size == PPC_OPCODE_64 |
0baf16f2 | 5224 | && (operand->flags & PPC_OPERAND_DS) != 0) |
94f592af | 5225 | fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS; |
0baf16f2 | 5226 | #endif |
94f592af | 5227 | fixP->fx_size = 2; |
11b37b7b | 5228 | if (target_big_endian) |
94f592af | 5229 | fixP->fx_where += 2; |
11b37b7b | 5230 | } |
0baf16f2 | 5231 | #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */ |
11b37b7b | 5232 | else |
252b5132 RH |
5233 | { |
5234 | char *sfile; | |
5235 | unsigned int sline; | |
5236 | ||
5237 | /* Use expr_symbol_where to see if this is an expression | |
0baf16f2 | 5238 | symbol. */ |
94f592af NC |
5239 | if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline)) |
5240 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
252b5132 RH |
5241 | _("unresolved expression that must be resolved")); |
5242 | else | |
94f592af | 5243 | as_bad_where (fixP->fx_file, fixP->fx_line, |
0baf16f2 | 5244 | _("unsupported relocation against %s"), |
94f592af NC |
5245 | S_GET_NAME (fixP->fx_addsy)); |
5246 | fixP->fx_done = 1; | |
5247 | return; | |
252b5132 RH |
5248 | } |
5249 | } | |
5250 | else | |
5251 | { | |
5252 | #ifdef OBJ_ELF | |
94f592af | 5253 | ppc_elf_validate_fix (fixP, seg); |
252b5132 | 5254 | #endif |
94f592af | 5255 | switch (fixP->fx_r_type) |
252b5132 | 5256 | { |
252b5132 | 5257 | case BFD_RELOC_CTOR: |
9c7977b3 AM |
5258 | if (BFD_DEFAULT_TARGET_SIZE == 64 && ppc_size == PPC_OPCODE_64) |
5259 | goto ctor64; | |
5260 | /* fall through */ | |
5261 | ||
0baf16f2 | 5262 | case BFD_RELOC_32: |
94f592af NC |
5263 | if (fixP->fx_pcrel) |
5264 | fixP->fx_r_type = BFD_RELOC_32_PCREL; | |
99a814a1 | 5265 | /* fall through */ |
252b5132 RH |
5266 | |
5267 | case BFD_RELOC_RVA: | |
5268 | case BFD_RELOC_32_PCREL: | |
5269 | case BFD_RELOC_32_BASEREL: | |
5270 | case BFD_RELOC_PPC_EMB_NADDR32: | |
94f592af | 5271 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
252b5132 RH |
5272 | value, 4); |
5273 | break; | |
5274 | ||
7f6d05e8 | 5275 | case BFD_RELOC_64: |
9c7977b3 | 5276 | ctor64: |
94f592af NC |
5277 | if (fixP->fx_pcrel) |
5278 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
99a814a1 | 5279 | /* fall through */ |
0baf16f2 | 5280 | |
7f6d05e8 | 5281 | case BFD_RELOC_64_PCREL: |
94f592af | 5282 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
7f6d05e8 | 5283 | value, 8); |
81d4177b | 5284 | break; |
0baf16f2 | 5285 | |
252b5132 RH |
5286 | case BFD_RELOC_LO16: |
5287 | case BFD_RELOC_16: | |
5288 | case BFD_RELOC_GPREL16: | |
5289 | case BFD_RELOC_16_GOT_PCREL: | |
5290 | case BFD_RELOC_16_GOTOFF: | |
5291 | case BFD_RELOC_LO16_GOTOFF: | |
5292 | case BFD_RELOC_HI16_GOTOFF: | |
5293 | case BFD_RELOC_HI16_S_GOTOFF: | |
5294 | case BFD_RELOC_LO16_BASEREL: | |
5295 | case BFD_RELOC_HI16_BASEREL: | |
5296 | case BFD_RELOC_HI16_S_BASEREL: | |
5297 | case BFD_RELOC_PPC_EMB_NADDR16: | |
5298 | case BFD_RELOC_PPC_EMB_NADDR16_LO: | |
5299 | case BFD_RELOC_PPC_EMB_NADDR16_HI: | |
5300 | case BFD_RELOC_PPC_EMB_NADDR16_HA: | |
5301 | case BFD_RELOC_PPC_EMB_SDAI16: | |
5302 | case BFD_RELOC_PPC_EMB_SDA2REL: | |
5303 | case BFD_RELOC_PPC_EMB_SDA2I16: | |
5304 | case BFD_RELOC_PPC_EMB_RELSEC16: | |
5305 | case BFD_RELOC_PPC_EMB_RELST_LO: | |
5306 | case BFD_RELOC_PPC_EMB_RELST_HI: | |
5307 | case BFD_RELOC_PPC_EMB_RELST_HA: | |
5308 | case BFD_RELOC_PPC_EMB_RELSDA: | |
5309 | case BFD_RELOC_PPC_TOC16: | |
0baf16f2 AM |
5310 | #ifdef OBJ_ELF |
5311 | #if BFD_DEFAULT_TARGET_SIZE == 64 | |
5312 | case BFD_RELOC_PPC64_TOC16_LO: | |
5313 | case BFD_RELOC_PPC64_TOC16_HI: | |
5314 | case BFD_RELOC_PPC64_TOC16_HA: | |
5315 | #endif | |
5316 | #endif | |
94f592af | 5317 | if (fixP->fx_pcrel) |
252b5132 | 5318 | { |
94f592af NC |
5319 | if (fixP->fx_addsy != NULL) |
5320 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
252b5132 | 5321 | _("cannot emit PC relative %s relocation against %s"), |
94f592af NC |
5322 | bfd_get_reloc_code_name (fixP->fx_r_type), |
5323 | S_GET_NAME (fixP->fx_addsy)); | |
252b5132 | 5324 | else |
94f592af | 5325 | as_bad_where (fixP->fx_file, fixP->fx_line, |
252b5132 | 5326 | _("cannot emit PC relative %s relocation"), |
94f592af | 5327 | bfd_get_reloc_code_name (fixP->fx_r_type)); |
252b5132 RH |
5328 | } |
5329 | ||
94f592af | 5330 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
252b5132 RH |
5331 | value, 2); |
5332 | break; | |
5333 | ||
5334 | /* This case happens when you write, for example, | |
5335 | lis %r3,(L1-L2)@ha | |
5336 | where L1 and L2 are defined later. */ | |
5337 | case BFD_RELOC_HI16: | |
94f592af | 5338 | if (fixP->fx_pcrel) |
252b5132 | 5339 | abort (); |
94f592af | 5340 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 | 5341 | PPC_HI (value), 2); |
252b5132 | 5342 | break; |
0baf16f2 | 5343 | |
252b5132 | 5344 | case BFD_RELOC_HI16_S: |
94f592af | 5345 | if (fixP->fx_pcrel) |
252b5132 | 5346 | abort (); |
94f592af | 5347 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5348 | PPC_HA (value), 2); |
5349 | break; | |
5350 | ||
5351 | #ifdef OBJ_ELF | |
5352 | #if BFD_DEFAULT_TARGET_SIZE == 64 | |
5353 | case BFD_RELOC_PPC64_HIGHER: | |
94f592af | 5354 | if (fixP->fx_pcrel) |
0baf16f2 | 5355 | abort (); |
94f592af | 5356 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 | 5357 | PPC_HIGHER (value), 2); |
252b5132 RH |
5358 | break; |
5359 | ||
0baf16f2 | 5360 | case BFD_RELOC_PPC64_HIGHER_S: |
94f592af | 5361 | if (fixP->fx_pcrel) |
0baf16f2 | 5362 | abort (); |
94f592af | 5363 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5364 | PPC_HIGHERA (value), 2); |
5365 | break; | |
5366 | ||
5367 | case BFD_RELOC_PPC64_HIGHEST: | |
94f592af | 5368 | if (fixP->fx_pcrel) |
0baf16f2 | 5369 | abort (); |
94f592af | 5370 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5371 | PPC_HIGHEST (value), 2); |
5372 | break; | |
5373 | ||
5374 | case BFD_RELOC_PPC64_HIGHEST_S: | |
94f592af | 5375 | if (fixP->fx_pcrel) |
0baf16f2 | 5376 | abort (); |
94f592af | 5377 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
5378 | PPC_HIGHESTA (value), 2); |
5379 | break; | |
5380 | ||
5381 | case BFD_RELOC_PPC64_ADDR16_DS: | |
5382 | case BFD_RELOC_PPC64_ADDR16_LO_DS: | |
5383 | case BFD_RELOC_PPC64_GOT16_DS: | |
5384 | case BFD_RELOC_PPC64_GOT16_LO_DS: | |
5385 | case BFD_RELOC_PPC64_PLT16_LO_DS: | |
5386 | case BFD_RELOC_PPC64_SECTOFF_DS: | |
5387 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: | |
5388 | case BFD_RELOC_PPC64_TOC16_DS: | |
5389 | case BFD_RELOC_PPC64_TOC16_LO_DS: | |
5390 | case BFD_RELOC_PPC64_PLTGOT16_DS: | |
5391 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: | |
94f592af | 5392 | if (fixP->fx_pcrel) |
0baf16f2 AM |
5393 | abort (); |
5394 | { | |
94f592af | 5395 | unsigned char *where = fixP->fx_frag->fr_literal + fixP->fx_where; |
0baf16f2 AM |
5396 | unsigned long val; |
5397 | ||
5398 | if (target_big_endian) | |
5399 | val = bfd_getb16 (where); | |
5400 | else | |
5401 | val = bfd_getl16 (where); | |
5402 | val |= (value & 0xfffc); | |
5403 | if (target_big_endian) | |
5404 | bfd_putb16 ((bfd_vma) val, where); | |
5405 | else | |
5406 | bfd_putl16 ((bfd_vma) val, where); | |
5407 | } | |
5408 | break; | |
5409 | #endif | |
5410 | #endif | |
252b5132 | 5411 | /* Because SDA21 modifies the register field, the size is set to 4 |
99a814a1 | 5412 | bytes, rather than 2, so offset it here appropriately. */ |
252b5132 | 5413 | case BFD_RELOC_PPC_EMB_SDA21: |
94f592af | 5414 | if (fixP->fx_pcrel) |
252b5132 RH |
5415 | abort (); |
5416 | ||
94f592af | 5417 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where |
252b5132 RH |
5418 | + ((target_big_endian) ? 2 : 0), |
5419 | value, 2); | |
5420 | break; | |
5421 | ||
5422 | case BFD_RELOC_8: | |
94f592af | 5423 | if (fixP->fx_pcrel) |
252b5132 RH |
5424 | abort (); |
5425 | ||
94f592af | 5426 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
252b5132 RH |
5427 | value, 1); |
5428 | break; | |
5429 | ||
5430 | case BFD_RELOC_24_PLT_PCREL: | |
5431 | case BFD_RELOC_PPC_LOCAL24PC: | |
94f592af | 5432 | if (!fixP->fx_pcrel && !fixP->fx_done) |
252b5132 RH |
5433 | abort (); |
5434 | ||
94f592af | 5435 | if (fixP->fx_done) |
99a814a1 AM |
5436 | { |
5437 | char *where; | |
5438 | unsigned long insn; | |
5439 | ||
5440 | /* Fetch the instruction, insert the fully resolved operand | |
5441 | value, and stuff the instruction back again. */ | |
94f592af | 5442 | where = fixP->fx_frag->fr_literal + fixP->fx_where; |
99a814a1 AM |
5443 | if (target_big_endian) |
5444 | insn = bfd_getb32 ((unsigned char *) where); | |
5445 | else | |
5446 | insn = bfd_getl32 ((unsigned char *) where); | |
5447 | if ((value & 3) != 0) | |
94f592af | 5448 | as_bad_where (fixP->fx_file, fixP->fx_line, |
99a814a1 AM |
5449 | _("must branch to an address a multiple of 4")); |
5450 | if ((offsetT) value < -0x40000000 | |
5451 | || (offsetT) value >= 0x40000000) | |
94f592af | 5452 | as_bad_where (fixP->fx_file, fixP->fx_line, |
99a814a1 AM |
5453 | _("@local or @plt branch destination is too far away, %ld bytes"), |
5454 | (long) value); | |
5455 | insn = insn | (value & 0x03fffffc); | |
5456 | if (target_big_endian) | |
5457 | bfd_putb32 ((bfd_vma) insn, (unsigned char *) where); | |
5458 | else | |
5459 | bfd_putl32 ((bfd_vma) insn, (unsigned char *) where); | |
5460 | } | |
252b5132 RH |
5461 | break; |
5462 | ||
5463 | case BFD_RELOC_VTABLE_INHERIT: | |
94f592af NC |
5464 | fixP->fx_done = 0; |
5465 | if (fixP->fx_addsy | |
5466 | && !S_IS_DEFINED (fixP->fx_addsy) | |
5467 | && !S_IS_WEAK (fixP->fx_addsy)) | |
5468 | S_SET_WEAK (fixP->fx_addsy); | |
252b5132 RH |
5469 | break; |
5470 | ||
5471 | case BFD_RELOC_VTABLE_ENTRY: | |
94f592af | 5472 | fixP->fx_done = 0; |
252b5132 RH |
5473 | break; |
5474 | ||
0baf16f2 AM |
5475 | #ifdef OBJ_ELF |
5476 | #if BFD_DEFAULT_TARGET_SIZE == 64 | |
5477 | /* Generated by reference to `sym@tocbase'. The sym is | |
5478 | ignored by the linker. */ | |
5479 | case BFD_RELOC_PPC64_TOC: | |
94f592af | 5480 | fixP->fx_done = 0; |
0baf16f2 AM |
5481 | break; |
5482 | #endif | |
5483 | #endif | |
252b5132 | 5484 | default: |
bc805888 | 5485 | fprintf (stderr, |
94f592af | 5486 | _("Gas failure, reloc value %d\n"), fixP->fx_r_type); |
99a814a1 | 5487 | fflush (stderr); |
252b5132 RH |
5488 | abort (); |
5489 | } | |
5490 | } | |
5491 | ||
5492 | #ifdef OBJ_ELF | |
94f592af | 5493 | fixP->fx_addnumber = value; |
252b5132 | 5494 | #else |
94f592af NC |
5495 | if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16) |
5496 | fixP->fx_addnumber = 0; | |
252b5132 RH |
5497 | else |
5498 | { | |
5499 | #ifdef TE_PE | |
94f592af | 5500 | fixP->fx_addnumber = 0; |
252b5132 RH |
5501 | #else |
5502 | /* We want to use the offset within the data segment of the | |
5503 | symbol, not the actual VMA of the symbol. */ | |
94f592af NC |
5504 | fixP->fx_addnumber = |
5505 | - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy)); | |
252b5132 RH |
5506 | #endif |
5507 | } | |
5508 | #endif | |
252b5132 RH |
5509 | } |
5510 | ||
5511 | /* Generate a reloc for a fixup. */ | |
5512 | ||
5513 | arelent * | |
5514 | tc_gen_reloc (seg, fixp) | |
92161534 | 5515 | asection *seg ATTRIBUTE_UNUSED; |
252b5132 RH |
5516 | fixS *fixp; |
5517 | { | |
5518 | arelent *reloc; | |
5519 | ||
5520 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
5521 | ||
49309057 ILT |
5522 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
5523 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
5524 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
5525 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
5526 | if (reloc->howto == (reloc_howto_type *) NULL) | |
5527 | { | |
5528 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
99a814a1 AM |
5529 | _("reloc %d not supported by object file format"), |
5530 | (int) fixp->fx_r_type); | |
252b5132 RH |
5531 | return NULL; |
5532 | } | |
5533 | reloc->addend = fixp->fx_addnumber; | |
5534 | ||
5535 | return reloc; | |
5536 | } |