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[deliverable/binutils-gdb.git] / gas / config / tc-ppc.c
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252b5132 1/* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000)
23e1d84c 2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
2c1c4c62 3 Free Software Foundation, Inc.
252b5132
RH		 4 Written by Ian Lance Taylor, Cygnus Support.
5
6 This file is part of GAS, the GNU Assembler.
7
8 GAS is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
11 any later version.
12
13 GAS is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with GAS; see the file COPYING. If not, write to the Free
20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
81d4177b 21 02111-1307, USA. */
252b5132
RH		 22
23#include <stdio.h>
252b5132 24#include "as.h"
3882b010 25#include "safe-ctype.h"
252b5132
RH		 26#include "subsegs.h"
27
28#include "opcode/ppc.h"
29
30#ifdef OBJ_ELF
31#include "elf/ppc.h"
5d6f4f16 32#include "dwarf2dbg.h"
252b5132
RH		 33#endif
34
35#ifdef TE_PE
36#include "coff/pe.h"
37#endif
38
39/* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
40
41/* Tell the main code what the endianness is. */
42extern int target_big_endian;
43
44/* Whether or not, we've set target_big_endian. */
45static 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. */
2a98c3a6 71#define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
0baf16f2
AM		 72
73/* #highera(value) denotes bits 32 through 47 of the indicated value,
74 compensating for #lo() being treated as a signed number. */
15c1449b 75#define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
0baf16f2
AM		 76
77/* #highest(value) denotes bits 48 through 63 of the indicated value. */
2a98c3a6 78#define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
0baf16f2
AM		 79
80/* #highesta(value) denotes bits 48 through 63 of the indicated value,
15c1449b
AM		 81 compensating for #lo being treated as a signed number. */
82#define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
0baf16f2
AM		 83
84#define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000)
85
252b5132
RH		 86static boolean reg_names_p = TARGET_REG_NAMES_P;
87
88static boolean register_name PARAMS ((expressionS *));
89static void ppc_set_cpu PARAMS ((void));
90static unsigned long ppc_insert_operand
91 PARAMS ((unsigned long insn, const struct powerpc_operand *operand,
92 offsetT val, char *file, unsigned int line));
93static void ppc_macro PARAMS ((char *str, const struct powerpc_macro *macro));
94static void ppc_byte PARAMS ((int));
0baf16f2
AM		 95
96#if defined (OBJ_XCOFF) || defined (OBJ_ELF)
252b5132
RH		 97static int ppc_is_toc_sym PARAMS ((symbolS *sym));
98static void ppc_tc PARAMS ((int));
0baf16f2
AM		 99static void ppc_machine PARAMS ((int));
100#endif
252b5132
RH		 101
102#ifdef OBJ_XCOFF
103static void ppc_comm PARAMS ((int));
104static void ppc_bb PARAMS ((int));
105static void ppc_bc PARAMS ((int));
106static void ppc_bf PARAMS ((int));
107static void ppc_biei PARAMS ((int));
108static void ppc_bs PARAMS ((int));
109static void ppc_eb PARAMS ((int));
110static void ppc_ec PARAMS ((int));
111static void ppc_ef PARAMS ((int));
112static void ppc_es PARAMS ((int));
113static void ppc_csect PARAMS ((int));
114static void ppc_change_csect PARAMS ((symbolS *));
115static void ppc_function PARAMS ((int));
116static void ppc_extern PARAMS ((int));
117static void ppc_lglobl PARAMS ((int));
118static void ppc_section PARAMS ((int));
119static void ppc_named_section PARAMS ((int));
120static void ppc_stabx PARAMS ((int));
121static void ppc_rename PARAMS ((int));
122static void ppc_toc PARAMS ((int));
123static void ppc_xcoff_cons PARAMS ((int));
124static void ppc_vbyte PARAMS ((int));
125#endif
126
127#ifdef OBJ_ELF
128static bfd_reloc_code_real_type ppc_elf_suffix PARAMS ((char **, expressionS *));
129static void ppc_elf_cons PARAMS ((int));
130static void ppc_elf_rdata PARAMS ((int));
131static void ppc_elf_lcomm PARAMS ((int));
132static void ppc_elf_validate_fix PARAMS ((fixS *, segT));
dc1d03fc 133static void ppc_apuinfo_section_add PARAMS ((unsigned int apu, unsigned int version));
252b5132
RH		 134#endif
135
136#ifdef TE_PE
137static void ppc_set_current_section PARAMS ((segT));
138static void ppc_previous PARAMS ((int));
139static void ppc_pdata PARAMS ((int));
140static void ppc_ydata PARAMS ((int));
141static void ppc_reldata PARAMS ((int));
142static void ppc_rdata PARAMS ((int));
143static void ppc_ualong PARAMS ((int));
144static void ppc_znop PARAMS ((int));
145static void ppc_pe_comm PARAMS ((int));
146static void ppc_pe_section PARAMS ((int));
147static void ppc_pe_function PARAMS ((int));
148static void ppc_pe_tocd PARAMS ((int));
149#endif
150\f
151/* Generic assembler global variables which must be defined by all
152 targets. */
153
154#ifdef OBJ_ELF
155/* This string holds the chars that always start a comment. If the
156 pre-processor is disabled, these aren't very useful. The macro
157 tc_comment_chars points to this. We use this, rather than the
158 usual comment_chars, so that we can switch for Solaris conventions. */
159static const char ppc_solaris_comment_chars[] = "#!";
160static const char ppc_eabi_comment_chars[] = "#";
161
162#ifdef TARGET_SOLARIS_COMMENT
163const char *ppc_comment_chars = ppc_solaris_comment_chars;
164#else
165const char *ppc_comment_chars = ppc_eabi_comment_chars;
166#endif
167#else
168const char comment_chars[] = "#";
169#endif
170
171/* Characters which start a comment at the beginning of a line. */
172const char line_comment_chars[] = "#";
173
174/* Characters which may be used to separate multiple commands on a
175 single line. */
176const char line_separator_chars[] = ";";
177
178/* Characters which are used to indicate an exponent in a floating
179 point number. */
180const char EXP_CHARS[] = "eE";
181
182/* Characters which mean that a number is a floating point constant,
183 as in 0d1.0. */
184const char FLT_CHARS[] = "dD";
185\f
186/* The target specific pseudo-ops which we support. */
187
188const pseudo_typeS md_pseudo_table[] =
189{
190 /* Pseudo-ops which must be overridden. */
191 { "byte", ppc_byte, 0 },
192
193#ifdef OBJ_XCOFF
194 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
195 legitimately belong in the obj-*.c file. However, XCOFF is based
196 on COFF, and is only implemented for the RS/6000. We just use
197 obj-coff.c, and add what we need here. */
198 { "comm", ppc_comm, 0 },
199 { "lcomm", ppc_comm, 1 },
200 { "bb", ppc_bb, 0 },
201 { "bc", ppc_bc, 0 },
202 { "bf", ppc_bf, 0 },
203 { "bi", ppc_biei, 0 },
204 { "bs", ppc_bs, 0 },
205 { "csect", ppc_csect, 0 },
206 { "data", ppc_section, 'd' },
207 { "eb", ppc_eb, 0 },
208 { "ec", ppc_ec, 0 },
209 { "ef", ppc_ef, 0 },
210 { "ei", ppc_biei, 1 },
211 { "es", ppc_es, 0 },
212 { "extern", ppc_extern, 0 },
213 { "function", ppc_function, 0 },
214 { "lglobl", ppc_lglobl, 0 },
215 { "rename", ppc_rename, 0 },
216 { "section", ppc_named_section, 0 },
217 { "stabx", ppc_stabx, 0 },
218 { "text", ppc_section, 't' },
219 { "toc", ppc_toc, 0 },
220 { "long", ppc_xcoff_cons, 2 },
7f6d05e8 221 { "llong", ppc_xcoff_cons, 3 },
252b5132
RH		 222 { "word", ppc_xcoff_cons, 1 },
223 { "short", ppc_xcoff_cons, 1 },
224 { "vbyte", ppc_vbyte, 0 },
225#endif
226
227#ifdef OBJ_ELF
0baf16f2
AM		 228 { "llong", ppc_elf_cons, 8 },
229 { "quad", ppc_elf_cons, 8 },
252b5132
RH		 230 { "long", ppc_elf_cons, 4 },
231 { "word", ppc_elf_cons, 2 },
232 { "short", ppc_elf_cons, 2 },
233 { "rdata", ppc_elf_rdata, 0 },
234 { "rodata", ppc_elf_rdata, 0 },
235 { "lcomm", ppc_elf_lcomm, 0 },
2b3c4602 236 { "file", (void (*) PARAMS ((int))) dwarf2_directive_file, 0 },
5d6f4f16 237 { "loc", dwarf2_directive_loc, 0 },
252b5132
RH		 238#endif
239
240#ifdef TE_PE
99a814a1 241 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
252b5132
RH		 242 { "previous", ppc_previous, 0 },
243 { "pdata", ppc_pdata, 0 },
244 { "ydata", ppc_ydata, 0 },
245 { "reldata", ppc_reldata, 0 },
246 { "rdata", ppc_rdata, 0 },
247 { "ualong", ppc_ualong, 0 },
248 { "znop", ppc_znop, 0 },
249 { "comm", ppc_pe_comm, 0 },
250 { "lcomm", ppc_pe_comm, 1 },
251 { "section", ppc_pe_section, 0 },
252 { "function", ppc_pe_function,0 },
253 { "tocd", ppc_pe_tocd, 0 },
254#endif
255
0baf16f2 256#if defined (OBJ_XCOFF) || defined (OBJ_ELF)
252b5132 257 { "tc", ppc_tc, 0 },
0baf16f2
AM		 258 { "machine", ppc_machine, 0 },
259#endif
252b5132
RH		 260
261 { NULL, NULL, 0 }
262};
263
264\f
99a814a1
AM		 265/* Predefined register names if -mregnames (or default for Windows NT).
266 In general, there are lots of them, in an attempt to be compatible
267 with a number of other Windows NT assemblers. */
252b5132
RH		 268
269/* Structure to hold information about predefined registers. */
270struct pd_reg
271 {
272 char *name;
273 int value;
274 };
275
276/* List of registers that are pre-defined:
277
278 Each general register has predefined names of the form:
279 1. r<reg_num> which has the value <reg_num>.
280 2. r.<reg_num> which has the value <reg_num>.
281
252b5132
RH		 282 Each floating point register has predefined names of the form:
283 1. f<reg_num> which has the value <reg_num>.
284 2. f.<reg_num> which has the value <reg_num>.
285
7a899fff
C		 286 Each vector unit register has predefined names of the form:
287 1. v<reg_num> which has the value <reg_num>.
288 2. v.<reg_num> which has the value <reg_num>.
289
252b5132
RH		 290 Each condition register has predefined names of the form:
291 1. cr<reg_num> which has the value <reg_num>.
292 2. cr.<reg_num> which has the value <reg_num>.
293
294 There are individual registers as well:
295 sp or r.sp has the value 1
296 rtoc or r.toc has the value 2
297 fpscr has the value 0
298 xer has the value 1
299 lr has the value 8
300 ctr has the value 9
301 pmr has the value 0
302 dar has the value 19
303 dsisr has the value 18
304 dec has the value 22
305 sdr1 has the value 25
306 srr0 has the value 26
307 srr1 has the value 27
308
81d4177b 309 The table is sorted. Suitable for searching by a binary search. */
252b5132
RH		 310
311static const struct pd_reg pre_defined_registers[] =
312{
313 { "cr.0", 0 }, /* Condition Registers */
314 { "cr.1", 1 },
315 { "cr.2", 2 },
316 { "cr.3", 3 },
317 { "cr.4", 4 },
318 { "cr.5", 5 },
319 { "cr.6", 6 },
320 { "cr.7", 7 },
321
322 { "cr0", 0 },
323 { "cr1", 1 },
324 { "cr2", 2 },
325 { "cr3", 3 },
326 { "cr4", 4 },
327 { "cr5", 5 },
328 { "cr6", 6 },
329 { "cr7", 7 },
330
331 { "ctr", 9 },
332
333 { "dar", 19 }, /* Data Access Register */
334 { "dec", 22 }, /* Decrementer */
335 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
336
337 { "f.0", 0 }, /* Floating point registers */
81d4177b
KH		 338 { "f.1", 1 },
339 { "f.10", 10 },
340 { "f.11", 11 },
341 { "f.12", 12 },
342 { "f.13", 13 },
343 { "f.14", 14 },
344 { "f.15", 15 },
345 { "f.16", 16 },
346 { "f.17", 17 },
347 { "f.18", 18 },
348 { "f.19", 19 },
349 { "f.2", 2 },
350 { "f.20", 20 },
351 { "f.21", 21 },
352 { "f.22", 22 },
353 { "f.23", 23 },
354 { "f.24", 24 },
355 { "f.25", 25 },
356 { "f.26", 26 },
357 { "f.27", 27 },
358 { "f.28", 28 },
359 { "f.29", 29 },
360 { "f.3", 3 },
252b5132
RH		 361 { "f.30", 30 },
362 { "f.31", 31 },
81d4177b
KH		 363 { "f.4", 4 },
364 { "f.5", 5 },
365 { "f.6", 6 },
366 { "f.7", 7 },
367 { "f.8", 8 },
368 { "f.9", 9 },
369
370 { "f0", 0 },
371 { "f1", 1 },
372 { "f10", 10 },
373 { "f11", 11 },
374 { "f12", 12 },
375 { "f13", 13 },
376 { "f14", 14 },
377 { "f15", 15 },
378 { "f16", 16 },
379 { "f17", 17 },
380 { "f18", 18 },
381 { "f19", 19 },
382 { "f2", 2 },
383 { "f20", 20 },
384 { "f21", 21 },
385 { "f22", 22 },
386 { "f23", 23 },
387 { "f24", 24 },
388 { "f25", 25 },
389 { "f26", 26 },
390 { "f27", 27 },
391 { "f28", 28 },
392 { "f29", 29 },
393 { "f3", 3 },
252b5132
RH		 394 { "f30", 30 },
395 { "f31", 31 },
81d4177b
KH		 396 { "f4", 4 },
397 { "f5", 5 },
398 { "f6", 6 },
399 { "f7", 7 },
400 { "f8", 8 },
401 { "f9", 9 },
252b5132
RH		 402
403 { "fpscr", 0 },
404
405 { "lr", 8 }, /* Link Register */
406
407 { "pmr", 0 },
408
409 { "r.0", 0 }, /* General Purpose Registers */
410 { "r.1", 1 },
411 { "r.10", 10 },
412 { "r.11", 11 },
413 { "r.12", 12 },
414 { "r.13", 13 },
415 { "r.14", 14 },
416 { "r.15", 15 },
417 { "r.16", 16 },
418 { "r.17", 17 },
419 { "r.18", 18 },
420 { "r.19", 19 },
421 { "r.2", 2 },
422 { "r.20", 20 },
423 { "r.21", 21 },
424 { "r.22", 22 },
425 { "r.23", 23 },
426 { "r.24", 24 },
427 { "r.25", 25 },
428 { "r.26", 26 },
429 { "r.27", 27 },
430 { "r.28", 28 },
431 { "r.29", 29 },
432 { "r.3", 3 },
433 { "r.30", 30 },
434 { "r.31", 31 },
435 { "r.4", 4 },
436 { "r.5", 5 },
437 { "r.6", 6 },
438 { "r.7", 7 },
439 { "r.8", 8 },
440 { "r.9", 9 },
441
442 { "r.sp", 1 }, /* Stack Pointer */
443
444 { "r.toc", 2 }, /* Pointer to the table of contents */
445
446 { "r0", 0 }, /* More general purpose registers */
447 { "r1", 1 },
448 { "r10", 10 },
449 { "r11", 11 },
450 { "r12", 12 },
451 { "r13", 13 },
452 { "r14", 14 },
453 { "r15", 15 },
454 { "r16", 16 },
455 { "r17", 17 },
456 { "r18", 18 },
457 { "r19", 19 },
458 { "r2", 2 },
459 { "r20", 20 },
460 { "r21", 21 },
461 { "r22", 22 },
462 { "r23", 23 },
463 { "r24", 24 },
464 { "r25", 25 },
465 { "r26", 26 },
466 { "r27", 27 },
467 { "r28", 28 },
468 { "r29", 29 },
469 { "r3", 3 },
470 { "r30", 30 },
471 { "r31", 31 },
472 { "r4", 4 },
473 { "r5", 5 },
474 { "r6", 6 },
475 { "r7", 7 },
476 { "r8", 8 },
477 { "r9", 9 },
478
479 { "rtoc", 2 }, /* Table of contents */
480
481 { "sdr1", 25 }, /* Storage Description Register 1 */
482
483 { "sp", 1 },
484
485 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
486 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
81d4177b 487
7a899fff 488 { "v.0", 0 }, /* Vector registers */
81d4177b
KH		 489 { "v.1", 1 },
490 { "v.10", 10 },
491 { "v.11", 11 },
492 { "v.12", 12 },
493 { "v.13", 13 },
494 { "v.14", 14 },
495 { "v.15", 15 },
496 { "v.16", 16 },
497 { "v.17", 17 },
498 { "v.18", 18 },
499 { "v.19", 19 },
500 { "v.2", 2 },
501 { "v.20", 20 },
502 { "v.21", 21 },
503 { "v.22", 22 },
504 { "v.23", 23 },
505 { "v.24", 24 },
506 { "v.25", 25 },
507 { "v.26", 26 },
508 { "v.27", 27 },
509 { "v.28", 28 },
510 { "v.29", 29 },
511 { "v.3", 3 },
7a899fff
C		 512 { "v.30", 30 },
513 { "v.31", 31 },
81d4177b
KH		 514 { "v.4", 4 },
515 { "v.5", 5 },
516 { "v.6", 6 },
517 { "v.7", 7 },
518 { "v.8", 8 },
519 { "v.9", 9 },
7a899fff
C		 520
521 { "v0", 0 },
81d4177b
KH		 522 { "v1", 1 },
523 { "v10", 10 },
524 { "v11", 11 },
525 { "v12", 12 },
526 { "v13", 13 },
527 { "v14", 14 },
528 { "v15", 15 },
529 { "v16", 16 },
530 { "v17", 17 },
531 { "v18", 18 },
532 { "v19", 19 },
533 { "v2", 2 },
534 { "v20", 20 },
535 { "v21", 21 },
536 { "v22", 22 },
537 { "v23", 23 },
538 { "v24", 24 },
539 { "v25", 25 },
540 { "v26", 26 },
541 { "v27", 27 },
542 { "v28", 28 },
543 { "v29", 29 },
544 { "v3", 3 },
7a899fff
C		 545 { "v30", 30 },
546 { "v31", 31 },
81d4177b
KH		 547 { "v4", 4 },
548 { "v5", 5 },
549 { "v6", 6 },
550 { "v7", 7 },
551 { "v8", 8 },
7a899fff 552 { "v9", 9 },
252b5132
RH		 553
554 { "xer", 1 },
555
556};
557
bc805888 558#define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
252b5132
RH		 559
560/* Given NAME, find the register number associated with that name, return
561 the integer value associated with the given name or -1 on failure. */
562
563static int reg_name_search
564 PARAMS ((const struct pd_reg *, int, const char * name));
565
566static int
567reg_name_search (regs, regcount, name)
568 const struct pd_reg *regs;
569 int regcount;
570 const char *name;
571{
572 int middle, low, high;
573 int cmp;
574
575 low = 0;
576 high = regcount - 1;
577
578 do
579 {
580 middle = (low + high) / 2;
581 cmp = strcasecmp (name, regs[middle].name);
582 if (cmp < 0)
583 high = middle - 1;
584 else if (cmp > 0)
585 low = middle + 1;
586 else
587 return regs[middle].value;
588 }
589 while (low <= high);
590
591 return -1;
592}
593
594/*
99a814a1 595 * Summary of register_name.
252b5132
RH		 596 *
597 * in: Input_line_pointer points to 1st char of operand.
598 *
599 * out: A expressionS.
600 * The operand may have been a register: in this case, X_op == O_register,
601 * X_add_number is set to the register number, and truth is returned.
602 * Input_line_pointer->(next non-blank) char after operand, or is in its
603 * original state.
604 */
605
606static boolean
607register_name (expressionP)
608 expressionS *expressionP;
609{
610 int reg_number;
611 char *name;
612 char *start;
613 char c;
614
99a814a1 615 /* Find the spelling of the operand. */
252b5132 616 start = name = input_line_pointer;
3882b010 617 if (name[0] == '%' && ISALPHA (name[1]))
252b5132
RH		 618 name = ++input_line_pointer;
619
3882b010 620 else if (!reg_names_p || !ISALPHA (name[0]))
252b5132
RH		 621 return false;
622
623 c = get_symbol_end ();
624 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
625
468cced8
AM		 626 /* Put back the delimiting char. */
627 *input_line_pointer = c;
628
99a814a1 629 /* Look to see if it's in the register table. */
81d4177b 630 if (reg_number >= 0)
252b5132
RH		 631 {
632 expressionP->X_op = O_register;
633 expressionP->X_add_number = reg_number;
81d4177b 634
99a814a1 635 /* Make the rest nice. */
252b5132
RH		 636 expressionP->X_add_symbol = NULL;
637 expressionP->X_op_symbol = NULL;
252b5132
RH		 638 return true;
639 }
468cced8
AM		 640
641 /* Reset the line as if we had not done anything. */
642 input_line_pointer = start;
643 return false;
252b5132
RH		 644}
645\f
646/* This function is called for each symbol seen in an expression. It
647 handles the special parsing which PowerPC assemblers are supposed
648 to use for condition codes. */
649
650/* Whether to do the special parsing. */
651static boolean cr_operand;
652
653/* Names to recognize in a condition code. This table is sorted. */
654static const struct pd_reg cr_names[] =
655{
656 { "cr0", 0 },
657 { "cr1", 1 },
658 { "cr2", 2 },
659 { "cr3", 3 },
660 { "cr4", 4 },
661 { "cr5", 5 },
662 { "cr6", 6 },
663 { "cr7", 7 },
664 { "eq", 2 },
665 { "gt", 1 },
666 { "lt", 0 },
667 { "so", 3 },
668 { "un", 3 }
669};
670
671/* Parsing function. This returns non-zero if it recognized an
672 expression. */
673
674int
675ppc_parse_name (name, expr)
676 const char *name;
677 expressionS *expr;
678{
679 int val;
680
681 if (! cr_operand)
682 return 0;
683
684 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
685 name);
686 if (val < 0)
687 return 0;
688
689 expr->X_op = O_constant;
690 expr->X_add_number = val;
691
692 return 1;
693}
694\f
695/* Local variables. */
696
697/* The type of processor we are assembling for. This is one or more
698 of the PPC_OPCODE flags defined in opcode/ppc.h. */
2b3c4602 699static unsigned long ppc_cpu = 0;
252b5132 700
2b3c4602
AM		 701/* Whether to target xcoff64/elf64. */
702static unsigned int ppc_obj64 = BFD_DEFAULT_TARGET_SIZE == 64;
7f6d05e8 703
252b5132
RH		 704/* Opcode hash table. */
705static struct hash_control *ppc_hash;
706
707/* Macro hash table. */
708static struct hash_control *ppc_macro_hash;
709
710#ifdef OBJ_ELF
99a814a1 711/* What type of shared library support to use. */
5d6f4f16 712static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE;
252b5132 713
99a814a1 714/* Flags to set in the elf header. */
252b5132
RH		 715static flagword ppc_flags = 0;
716
717/* Whether this is Solaris or not. */
718#ifdef TARGET_SOLARIS_COMMENT
719#define SOLARIS_P true
720#else
721#define SOLARIS_P false
722#endif
723
724static boolean msolaris = SOLARIS_P;
725#endif
726
727#ifdef OBJ_XCOFF
728
729/* The RS/6000 assembler uses the .csect pseudo-op to generate code
730 using a bunch of different sections. These assembler sections,
731 however, are all encompassed within the .text or .data sections of
732 the final output file. We handle this by using different
733 subsegments within these main segments. */
734
735/* Next subsegment to allocate within the .text segment. */
736static subsegT ppc_text_subsegment = 2;
737
738/* Linked list of csects in the text section. */
739static symbolS *ppc_text_csects;
740
741/* Next subsegment to allocate within the .data segment. */
742static subsegT ppc_data_subsegment = 2;
743
744/* Linked list of csects in the data section. */
745static symbolS *ppc_data_csects;
746
747/* The current csect. */
748static symbolS *ppc_current_csect;
749
750/* The RS/6000 assembler uses a TOC which holds addresses of functions
751 and variables. Symbols are put in the TOC with the .tc pseudo-op.
752 A special relocation is used when accessing TOC entries. We handle
753 the TOC as a subsegment within the .data segment. We set it up if
754 we see a .toc pseudo-op, and save the csect symbol here. */
755static symbolS *ppc_toc_csect;
756
757/* The first frag in the TOC subsegment. */
758static fragS *ppc_toc_frag;
759
760/* The first frag in the first subsegment after the TOC in the .data
761 segment. NULL if there are no subsegments after the TOC. */
762static fragS *ppc_after_toc_frag;
763
764/* The current static block. */
765static symbolS *ppc_current_block;
766
767/* The COFF debugging section; set by md_begin. This is not the
768 .debug section, but is instead the secret BFD section which will
769 cause BFD to set the section number of a symbol to N_DEBUG. */
770static asection *ppc_coff_debug_section;
771
772#endif /* OBJ_XCOFF */
773
774#ifdef TE_PE
775
776/* Various sections that we need for PE coff support. */
777static segT ydata_section;
778static segT pdata_section;
779static segT reldata_section;
780static segT rdata_section;
781static segT tocdata_section;
782
81d4177b 783/* The current section and the previous section. See ppc_previous. */
252b5132
RH		 784static segT ppc_previous_section;
785static segT ppc_current_section;
786
787#endif /* TE_PE */
788
789#ifdef OBJ_ELF
790symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
6a0c61b7
EZ		 791#define PPC_APUINFO_ISEL 0x40
792#define PPC_APUINFO_PMR 0x41
793#define PPC_APUINFO_RFMCI 0x42
794#define PPC_APUINFO_CACHELCK 0x43
795#define PPC_APUINFO_SPE 0x100
796#define PPC_APUINFO_EFS 0x101
797#define PPC_APUINFO_BRLOCK 0x102
798
799/*
800 * We keep a list of APUinfo
801 */
802unsigned long *ppc_apuinfo_list;
803unsigned int ppc_apuinfo_num;
804unsigned int ppc_apuinfo_num_alloc;
252b5132
RH		 805#endif /* OBJ_ELF */
806\f
807#ifdef OBJ_ELF
15c1449b 808const char *const md_shortopts = "b:l:usm:K:VQ:";
252b5132 809#else
15c1449b 810const char *const md_shortopts = "um:";
252b5132 811#endif
15c1449b 812const struct option md_longopts[] = {
252b5132
RH		 813 {NULL, no_argument, NULL, 0}
814};
15c1449b 815const size_t md_longopts_size = sizeof (md_longopts);
252b5132
RH		 816
817int
818md_parse_option (c, arg)
819 int c;
820 char *arg;
821{
822 switch (c)
823 {
824 case 'u':
825 /* -u means that any undefined symbols should be treated as
826 external, which is the default for gas anyhow. */
827 break;
828
829#ifdef OBJ_ELF
830 case 'l':
831 /* Solaris as takes -le (presumably for little endian). For completeness
99a814a1 832 sake, recognize -be also. */
252b5132
RH		 833 if (strcmp (arg, "e") == 0)
834 {
835 target_big_endian = 0;
836 set_target_endian = 1;
837 }
838 else
839 return 0;
840
841 break;
842
843 case 'b':
844 if (strcmp (arg, "e") == 0)
845 {
846 target_big_endian = 1;
847 set_target_endian = 1;
848 }
849 else
850 return 0;
851
852 break;
853
854 case 'K':
99a814a1 855 /* Recognize -K PIC. */
252b5132
RH		 856 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
857 {
858 shlib = SHLIB_PIC;
859 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
860 }
861 else
862 return 0;
863
864 break;
865#endif
866
7f6d05e8
CP		 867 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
868 case 'a':
869 if (strcmp (arg, "64") == 0)
2a98c3a6
AM		 870 {
871#ifdef BFD64
872 ppc_obj64 = 1;
873#else
874 as_fatal (_("%s unsupported"), "-a64");
875#endif
876 }
7f6d05e8 877 else if (strcmp (arg, "32") == 0)
2b3c4602 878 ppc_obj64 = 0;
7f6d05e8
CP		 879 else
880 return 0;
881 break;
81d4177b 882
252b5132
RH		 883 case 'm':
884 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
99a814a1 885 (RIOS2). */
252b5132 886 if (strcmp (arg, "pwrx") == 0 || strcmp (arg, "pwr2") == 0)
2b3c4602 887 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32;
252b5132
RH		 888 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
889 else if (strcmp (arg, "pwr") == 0)
2b3c4602 890 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32;
23e1d84c 891 /* -m601 means to assemble for the PowerPC 601, which includes
99a814a1 892 instructions that are holdovers from the Power. */
252b5132 893 else if (strcmp (arg, "601") == 0)
6a0c61b7
EZ		 894 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
895 | PPC_OPCODE_601 | PPC_OPCODE_32;
252b5132 896 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
23e1d84c 897 PowerPC 603/604. */
252b5132
RH		 898 else if (strcmp (arg, "ppc") == 0
899 || strcmp (arg, "ppc32") == 0
252b5132
RH		 900 || strcmp (arg, "603") == 0
901 || strcmp (arg, "604") == 0)
6a0c61b7 902 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
23e1d84c 903 /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */
418c1742
MG		 904 else if (strcmp (arg, "403") == 0
905 || strcmp (arg, "405") == 0)
6a0c61b7
EZ		 906 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
907 | PPC_OPCODE_403 | PPC_OPCODE_32;
418c1742
MG		 908 else if (strcmp (arg, "7400") == 0
909 || strcmp (arg, "7410") == 0
910 || strcmp (arg, "7450") == 0
911 || strcmp (arg, "7455") == 0)
6a0c61b7
EZ		 912 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
913 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_32;
418c1742 914 else if (strcmp (arg, "altivec") == 0)
8a588659
MG		 915 {
916 if (ppc_cpu == 0)
6a0c61b7 917 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC;
8a588659
MG		 918 else
919 ppc_cpu |= PPC_OPCODE_ALTIVEC;
920 }
6a0c61b7
EZ		 921 else if (strcmp (arg, "e500") == 0 || strcmp (arg, "e500x2") == 0)
922 {
923 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
924 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
925 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI;
926 }
927 else if (strcmp (arg, "spe") == 0)
928 {
929 if (ppc_cpu == 0)
930 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_SPE | PPC_OPCODE_EFS;
931 else
932 ppc_cpu |= PPC_OPCODE_SPE;
933 }
252b5132 934 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
99a814a1 935 620. */
252b5132
RH		 936 else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0)
937 {
6a0c61b7 938 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
252b5132 939 }
d0e9a01c
RH		 940 else if (strcmp (arg, "ppc64bridge") == 0)
941 {
6a0c61b7
EZ		 942 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
943 | PPC_OPCODE_64_BRIDGE | PPC_OPCODE_64;
418c1742
MG		 944 }
945 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
946 else if (strcmp (arg, "booke") == 0 || strcmp (arg, "booke32") == 0)
6a0c61b7
EZ		 947 {
948 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32;
949 }
418c1742
MG		 950 /* -mbooke64 means enable 64-bit BookE support. */
951 else if (strcmp (arg, "booke64") == 0)
952 {
5d6255fe 953 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE |
418c1742 954 PPC_OPCODE_BOOKE64 | PPC_OPCODE_64;
d0e9a01c 955 }
23e1d84c
AM		 956 else if (strcmp (arg, "power4") == 0)
957 {
6a0c61b7
EZ		 958 ppc_cpu = PPC_OPCODE_PPC| PPC_OPCODE_CLASSIC
959 | PPC_OPCODE_64 | PPC_OPCODE_POWER4;
23e1d84c 960 }
252b5132
RH		 961 /* -mcom means assemble for the common intersection between Power
962 and PowerPC. At present, we just allow the union, rather
963 than the intersection. */
964 else if (strcmp (arg, "com") == 0)
2b3c4602 965 ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32;
252b5132
RH		 966 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
967 else if (strcmp (arg, "any") == 0)
2b3c4602 968 ppc_cpu = PPC_OPCODE_ANY | PPC_OPCODE_32;
252b5132
RH		 969
970 else if (strcmp (arg, "regnames") == 0)
971 reg_names_p = true;
972
973 else if (strcmp (arg, "no-regnames") == 0)
974 reg_names_p = false;
975
976#ifdef OBJ_ELF
99a814a1
AM		 977 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
978 that require relocation. */
252b5132
RH		 979 else if (strcmp (arg, "relocatable") == 0)
980 {
5d6f4f16 981 shlib = SHLIB_MRELOCATABLE;
252b5132
RH		 982 ppc_flags |= EF_PPC_RELOCATABLE;
983 }
984
985 else if (strcmp (arg, "relocatable-lib") == 0)
986 {
5d6f4f16 987 shlib = SHLIB_MRELOCATABLE;
252b5132
RH		 988 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
989 }
990
99a814a1 991 /* -memb, set embedded bit. */
252b5132
RH		 992 else if (strcmp (arg, "emb") == 0)
993 ppc_flags |= EF_PPC_EMB;
994
99a814a1
AM		 995 /* -mlittle/-mbig set the endianess. */
996 else if (strcmp (arg, "little") == 0
997 || strcmp (arg, "little-endian") == 0)
252b5132
RH		 998 {
999 target_big_endian = 0;
1000 set_target_endian = 1;
1001 }
1002
1003 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1004 {
1005 target_big_endian = 1;
1006 set_target_endian = 1;
1007 }
1008
1009 else if (strcmp (arg, "solaris") == 0)
1010 {
1011 msolaris = true;
1012 ppc_comment_chars = ppc_solaris_comment_chars;
1013 }
1014
1015 else if (strcmp (arg, "no-solaris") == 0)
1016 {
1017 msolaris = false;
1018 ppc_comment_chars = ppc_eabi_comment_chars;
1019 }
1020#endif
1021 else
1022 {
1023 as_bad (_("invalid switch -m%s"), arg);
1024 return 0;
1025 }
1026 break;
1027
1028#ifdef OBJ_ELF
1029 /* -V: SVR4 argument to print version ID. */
1030 case 'V':
1031 print_version_id ();
1032 break;
1033
1034 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1035 should be emitted or not. FIXME: Not implemented. */
1036 case 'Q':
1037 break;
1038
1039 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1040 rather than .stabs.excl, which is ignored by the linker.
1041 FIXME: Not implemented. */
1042 case 's':
1043 if (arg)
1044 return 0;
1045
1046 break;
1047#endif
1048
1049 default:
1050 return 0;
1051 }
1052
1053 return 1;
1054}
1055
1056void
1057md_show_usage (stream)
1058 FILE *stream;
1059{
bc805888 1060 fprintf (stream, _("\
252b5132
RH		 1061PowerPC options:\n\
1062-u ignored\n\
23e1d84c
AM		 1063-mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1064-mpwr generate code for POWER (RIOS1)\n\
1065-m601 generate code for PowerPC 601\n\
418c1742 1066-mppc, -mppc32, -m603, -m604\n\
23e1d84c
AM		 1067 generate code for PowerPC 603/604\n\
1068-m403, -m405 generate code for PowerPC 403/405\n\
f5c120c5 1069-m7400, -m7410, -m7450, -m7455\n\
23e1d84c
AM		 1070 generate code For PowerPC 7400/7410/7450/7455\n\
1071-mppc64, -m620 generate code for PowerPC 620/625/630\n\
d0e9a01c 1072-mppc64bridge generate code for PowerPC 64, including bridge insns\n\
a09cf9bd
MG		 1073-mbooke64 generate code for 64-bit PowerPC BookE\n\
1074-mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
23e1d84c 1075-mpower4 generate code for Power4 architecture\n\
f5c120c5 1076-maltivec generate code for AltiVec\n\
252b5132
RH		 1077-mcom generate code Power/PowerPC common instructions\n\
1078-many generate code for any architecture (PWR/PWRX/PPC)\n\
1079-mregnames Allow symbolic names for registers\n\
1080-mno-regnames Do not allow symbolic names for registers\n"));
6a0c61b7
EZ		 1081 fprintf (stream, _("\
1082-me500, -me500x2 generate code for Motorola e500 core complex\n\
1083-mspe generate code for Motorola SPE instructions\n"));
252b5132 1084#ifdef OBJ_ELF
bc805888 1085 fprintf (stream, _("\
252b5132
RH		 1086-mrelocatable support for GCC's -mrelocatble option\n\
1087-mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1088-memb set PPC_EMB bit in ELF flags\n\
1089-mlittle, -mlittle-endian\n\
1090 generate code for a little endian machine\n\
1091-mbig, -mbig-endian generate code for a big endian machine\n\
1092-msolaris generate code for Solaris\n\
1093-mno-solaris do not generate code for Solaris\n\
1094-V print assembler version number\n\
1095-Qy, -Qn ignored\n"));
1096#endif
1097}
1098\f
1099/* Set ppc_cpu if it is not already set. */
1100
1101static void
1102ppc_set_cpu ()
1103{
1104 const char *default_os = TARGET_OS;
1105 const char *default_cpu = TARGET_CPU;
1106
1107 if (ppc_cpu == 0)
1108 {
2a98c3a6
AM		 1109 if (ppc_obj64)
1110 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1111 else if (strncmp (default_os, "aix", 3) == 0
1112 && default_os[3] >= '4' && default_os[3] <= '9')
2b3c4602 1113 ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32;
252b5132 1114 else if (strncmp (default_os, "aix3", 4) == 0)
2b3c4602 1115 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32;
252b5132 1116 else if (strcmp (default_cpu, "rs6000") == 0)
2b3c4602 1117 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32;
0baf16f2 1118 else if (strncmp (default_cpu, "powerpc", 7) == 0)
6a0c61b7
EZ		 1119 {
1120 if (default_cpu[7] == '6' && default_cpu[8] == '4')
1121 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1122 else
1123 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
1124 }
252b5132 1125 else
99a814a1
AM		 1126 as_fatal (_("Unknown default cpu = %s, os = %s"),
1127 default_cpu, default_os);
252b5132
RH		 1128 }
1129}
1130
1131/* Figure out the BFD architecture to use. */
1132
1133enum bfd_architecture
1134ppc_arch ()
1135{
1136 const char *default_cpu = TARGET_CPU;
1137 ppc_set_cpu ();
1138
1139 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1140 return bfd_arch_powerpc;
1141 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1142 return bfd_arch_rs6000;
1143 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1144 {
1145 if (strcmp (default_cpu, "rs6000") == 0)
1146 return bfd_arch_rs6000;
0baf16f2 1147 else if (strncmp (default_cpu, "powerpc", 7) == 0)
252b5132
RH		 1148 return bfd_arch_powerpc;
1149 }
1150
1151 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1152 return bfd_arch_unknown;
1153}
1154
7f6d05e8
CP		 1155unsigned long
1156ppc_mach ()
1157{
2a98c3a6
AM		 1158 if (ppc_obj64)
1159 return bfd_mach_ppc64;
1160 else if (ppc_arch () == bfd_arch_rs6000)
1161 return bfd_mach_rs6k;
1162 else
1163 return bfd_mach_ppc;
7f6d05e8
CP		 1164}
1165
81d4177b 1166extern char*
99a814a1 1167ppc_target_format ()
7f6d05e8
CP		 1168{
1169#ifdef OBJ_COFF
1170#ifdef TE_PE
99a814a1 1171 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
7f6d05e8 1172#elif TE_POWERMAC
0baf16f2 1173 return "xcoff-powermac";
7f6d05e8 1174#else
eb1e0e80 1175# ifdef TE_AIX5
2b3c4602 1176 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
eb1e0e80 1177# else
2b3c4602 1178 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
eb1e0e80 1179# endif
7f6d05e8 1180#endif
7f6d05e8
CP		 1181#endif
1182#ifdef OBJ_ELF
0baf16f2 1183 return (target_big_endian
2b3c4602
AM		 1184 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1185 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
7f6d05e8
CP		 1186#endif
1187}
1188
252b5132
RH		 1189/* This function is called when the assembler starts up. It is called
1190 after the options have been parsed and the output file has been
1191 opened. */
1192
1193void
1194md_begin ()
1195{
1196 register const struct powerpc_opcode *op;
1197 const struct powerpc_opcode *op_end;
1198 const struct powerpc_macro *macro;
1199 const struct powerpc_macro *macro_end;
1200 boolean dup_insn = false;
1201
1202 ppc_set_cpu ();
1203
1204#ifdef OBJ_ELF
81d4177b 1205 /* Set the ELF flags if desired. */
252b5132
RH		 1206 if (ppc_flags && !msolaris)
1207 bfd_set_private_flags (stdoutput, ppc_flags);
1208#endif
1209
1210 /* Insert the opcodes into a hash table. */
1211 ppc_hash = hash_new ();
1212
1213 op_end = powerpc_opcodes + powerpc_num_opcodes;
1214 for (op = powerpc_opcodes; op < op_end; op++)
1215 {
1216 know ((op->opcode & op->mask) == op->opcode);
1217
2b3c4602 1218 if ((op->flags & ppc_cpu & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) != 0
252b5132 1219 && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
2b3c4602
AM		 1220 || ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64))
1221 == (ppc_cpu & (PPC_OPCODE_32 | PPC_OPCODE_64)))
23e1d84c 1222 || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0)
341026c1
NC		 1223 /* Certain instructions (eg: extsw) do not exist in the
1224 32-bit BookE instruction set, but they do exist in the
1225 64-bit BookE instruction set, and other PPC instruction
1226 sets. Check to see if the opcode has the BOOKE64 flag set.
1227 If it does make sure that the target CPU is not the BookE32. */
1228 && ((op->flags & PPC_OPCODE_BOOKE64) == 0
1229 || (ppc_cpu & PPC_OPCODE_BOOKE64) == PPC_OPCODE_BOOKE64
1230 || (ppc_cpu & PPC_OPCODE_BOOKE) == 0)
23e1d84c
AM		 1231 && ((op->flags & (PPC_OPCODE_POWER4 | PPC_OPCODE_NOPOWER4)) == 0
1232 || ((op->flags & PPC_OPCODE_POWER4)
1233 == (ppc_cpu & PPC_OPCODE_POWER4))))
252b5132
RH		 1234 {
1235 const char *retval;
1236
1237 retval = hash_insert (ppc_hash, op->name, (PTR) op);
1238 if (retval != (const char *) NULL)
1239 {
99a814a1 1240 /* Ignore Power duplicates for -m601. */
252b5132
RH		 1241 if ((ppc_cpu & PPC_OPCODE_601) != 0
1242 && (op->flags & PPC_OPCODE_POWER) != 0)
1243 continue;
1244
99a814a1
AM		 1245 as_bad (_("Internal assembler error for instruction %s"),
1246 op->name);
252b5132
RH		 1247 dup_insn = true;
1248 }
1249 }
1250 }
1251
1252 /* Insert the macros into a hash table. */
1253 ppc_macro_hash = hash_new ();
1254
1255 macro_end = powerpc_macros + powerpc_num_macros;
1256 for (macro = powerpc_macros; macro < macro_end; macro++)
1257 {
1258 if ((macro->flags & ppc_cpu) != 0)
1259 {
1260 const char *retval;
1261
1262 retval = hash_insert (ppc_macro_hash, macro->name, (PTR) macro);
1263 if (retval != (const char *) NULL)
1264 {
1265 as_bad (_("Internal assembler error for macro %s"), macro->name);
1266 dup_insn = true;
1267 }
1268 }
1269 }
1270
1271 if (dup_insn)
1272 abort ();
1273
99a814a1
AM		 1274 /* Tell the main code what the endianness is if it is not overidden
1275 by the user. */
252b5132
RH		 1276 if (!set_target_endian)
1277 {
1278 set_target_endian = 1;
1279 target_big_endian = PPC_BIG_ENDIAN;
1280 }
1281
1282#ifdef OBJ_XCOFF
1283 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1284
1285 /* Create dummy symbols to serve as initial csects. This forces the
1286 text csects to precede the data csects. These symbols will not
1287 be output. */
1288 ppc_text_csects = symbol_make ("dummy\001");
809ffe0d 1289 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
252b5132 1290 ppc_data_csects = symbol_make ("dummy\001");
809ffe0d 1291 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
252b5132
RH		 1292#endif
1293
1294#ifdef TE_PE
1295
1296 ppc_current_section = text_section;
81d4177b 1297 ppc_previous_section = 0;
252b5132
RH		 1298
1299#endif
1300}
1301
6a0c61b7
EZ		 1302void
1303ppc_cleanup ()
1304{
dc1d03fc 1305#ifdef OBJ_ELF
6a0c61b7
EZ		 1306 if (ppc_apuinfo_list == NULL)
1307 return;
1308
1309 /* Ok, so write the section info out. We have this layout:
1310
1311 byte data what
1312 ---- ---- ----
1313 0 8 length of "APUinfo\0"
1314 4 (n*4) number of APU's (4 bytes each)
1315 8 2 note type 2
1316 12 "APUinfo\0" name
1317 20 APU#1 first APU's info
1318 24 APU#2 second APU's info
1319 ... ...
1320 */
1321 {
1322 char *p;
1323 asection *seg = now_seg;
1324 subsegT subseg = now_subseg;
1325 asection *apuinfo_secp = (asection *) NULL;
1326 int i;
1327
1328 /* Create the .PPC.EMB.apuinfo section. */
1329 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1330 bfd_set_section_flags (stdoutput,
1331 apuinfo_secp,
1332 SEC_HAS_CONTENTS | SEC_READONLY | SEC_MERGE);
1333
1334 p = frag_more (4);
1335 md_number_to_chars (p, (valueT) 8, 4);
1336
1337 p = frag_more (4);
1338 md_number_to_chars (p, (valueT) ppc_apuinfo_num, 4);
1339
1340 p = frag_more (4);
1341 md_number_to_chars (p, (valueT) 2, 4);
1342
1343 p = frag_more (8);
1344 strcpy (p, "APUinfo");
1345
1346 for (i = 0; i < ppc_apuinfo_num; i++)
1347 {
1348 p = frag_more (4);
1349 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1350 }
1351
1352 frag_align (2, 0, 0);
1353
1354 /* We probably can't restore the current segment, for there likely
1355 isn't one yet... */
1356 if (seg && subseg)
1357 subseg_set (seg, subseg);
1358 }
dc1d03fc 1359#endif
6a0c61b7
EZ		 1360}
1361
252b5132
RH		 1362/* Insert an operand value into an instruction. */
1363
1364static unsigned long
1365ppc_insert_operand (insn, operand, val, file, line)
1366 unsigned long insn;
1367 const struct powerpc_operand *operand;
1368 offsetT val;
1369 char *file;
1370 unsigned int line;
1371{
1372 if (operand->bits != 32)
1373 {
1374 long min, max;
1375 offsetT test;
1376
1377 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1378 {
d0e9a01c 1379 if ((operand->flags & PPC_OPERAND_SIGNOPT) != 0)
252b5132
RH		 1380 max = (1 << operand->bits) - 1;
1381 else
1382 max = (1 << (operand->bits - 1)) - 1;
1383 min = - (1 << (operand->bits - 1));
1384
2b3c4602 1385 if (!ppc_obj64)
252b5132
RH		 1386 {
1387 /* Some people write 32 bit hex constants with the sign
1388 extension done by hand. This shouldn't really be
1389 valid, but, to permit this code to assemble on a 64
1390 bit host, we sign extend the 32 bit value. */
1391 if (val > 0
92161534
ILT		 1392 && (val & (offsetT) 0x80000000) != 0
1393 && (val & (offsetT) 0xffffffff) == val)
252b5132
RH		 1394 {
1395 val -= 0x80000000;
1396 val -= 0x80000000;
1397 }
1398 }
1399 }
1400 else
1401 {
1402 max = (1 << operand->bits) - 1;
1403 min = 0;
1404 }
1405
1406 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1407 test = - val;
1408 else
1409 test = val;
1410
1411 if (test < (offsetT) min || test > (offsetT) max)
1412 {
1413 const char *err =
1414 _("operand out of range (%s not between %ld and %ld)");
1415 char buf[100];
1416
1417 sprint_value (buf, test);
0baf16f2 1418 as_bad_where (file, line, err, buf, min, max);
252b5132
RH		 1419 }
1420 }
1421
1422 if (operand->insert)
1423 {
1424 const char *errmsg;
1425
1426 errmsg = NULL;
2b3c4602 1427 insn = (*operand->insert) (insn, (long) val, ppc_cpu, &errmsg);
252b5132 1428 if (errmsg != (const char *) NULL)
0baf16f2 1429 as_bad_where (file, line, errmsg);
252b5132
RH		 1430 }
1431 else
1432 insn |= (((long) val & ((1 << operand->bits) - 1))
1433 << operand->shift);
1434
1435 return insn;
1436}
1437
1438\f
1439#ifdef OBJ_ELF
1440/* Parse @got, etc. and return the desired relocation. */
1441static bfd_reloc_code_real_type
1442ppc_elf_suffix (str_p, exp_p)
1443 char **str_p;
1444 expressionS *exp_p;
1445{
1446 struct map_bfd {
1447 char *string;
1448 int length;
15c1449b 1449 int reloc;
252b5132
RH		 1450 };
1451
1452 char ident[20];
1453 char *str = *str_p;
1454 char *str2;
1455 int ch;
1456 int len;
15c1449b 1457 const struct map_bfd *ptr;
252b5132 1458
bc805888 1459#define MAP(str,reloc) { str, sizeof (str)-1, reloc }
252b5132 1460
15c1449b
AM		 1461 static const struct map_bfd mapping[] = {
1462 MAP ("l", (int) BFD_RELOC_LO16),
1463 MAP ("h", (int) BFD_RELOC_HI16),
1464 MAP ("ha", (int) BFD_RELOC_HI16_S),
1465 MAP ("brtaken", (int) BFD_RELOC_PPC_B16_BRTAKEN),
1466 MAP ("brntaken", (int) BFD_RELOC_PPC_B16_BRNTAKEN),
1467 MAP ("got", (int) BFD_RELOC_16_GOTOFF),
1468 MAP ("got@l", (int) BFD_RELOC_LO16_GOTOFF),
1469 MAP ("got@h", (int) BFD_RELOC_HI16_GOTOFF),
1470 MAP ("got@ha", (int) BFD_RELOC_HI16_S_GOTOFF),
1471 MAP ("fixup", (int) BFD_RELOC_CTOR), /* warning with -mrelocatable */
1472 MAP ("plt", (int) BFD_RELOC_24_PLT_PCREL),
1473 MAP ("pltrel24", (int) BFD_RELOC_24_PLT_PCREL),
1474 MAP ("copy", (int) BFD_RELOC_PPC_COPY),
1475 MAP ("globdat", (int) BFD_RELOC_PPC_GLOB_DAT),
1476 MAP ("local24pc", (int) BFD_RELOC_PPC_LOCAL24PC),
1477 MAP ("local", (int) BFD_RELOC_PPC_LOCAL24PC),
1478 MAP ("pltrel", (int) BFD_RELOC_32_PLT_PCREL),
1479 MAP ("plt@l", (int) BFD_RELOC_LO16_PLTOFF),
1480 MAP ("plt@h", (int) BFD_RELOC_HI16_PLTOFF),
1481 MAP ("plt@ha", (int) BFD_RELOC_HI16_S_PLTOFF),
1482 MAP ("sdarel", (int) BFD_RELOC_GPREL16),
1cfc59d5 1483 MAP ("sectoff", (int) BFD_RELOC_16_BASEREL),
15c1449b
AM		 1484 MAP ("sectoff@l", (int) BFD_RELOC_LO16_BASEREL),
1485 MAP ("sectoff@h", (int) BFD_RELOC_HI16_BASEREL),
1486 MAP ("sectoff@ha", (int) BFD_RELOC_HI16_S_BASEREL),
1487 MAP ("naddr", (int) BFD_RELOC_PPC_EMB_NADDR32),
1488 MAP ("naddr16", (int) BFD_RELOC_PPC_EMB_NADDR16),
1489 MAP ("naddr@l", (int) BFD_RELOC_PPC_EMB_NADDR16_LO),
1490 MAP ("naddr@h", (int) BFD_RELOC_PPC_EMB_NADDR16_HI),
1491 MAP ("naddr@ha", (int) BFD_RELOC_PPC_EMB_NADDR16_HA),
1492 MAP ("sdai16", (int) BFD_RELOC_PPC_EMB_SDAI16),
1493 MAP ("sda2rel", (int) BFD_RELOC_PPC_EMB_SDA2REL),
1494 MAP ("sda2i16", (int) BFD_RELOC_PPC_EMB_SDA2I16),
1495 MAP ("sda21", (int) BFD_RELOC_PPC_EMB_SDA21),
1496 MAP ("mrkref", (int) BFD_RELOC_PPC_EMB_MRKREF),
1497 MAP ("relsect", (int) BFD_RELOC_PPC_EMB_RELSEC16),
1498 MAP ("relsect@l", (int) BFD_RELOC_PPC_EMB_RELST_LO),
1499 MAP ("relsect@h", (int) BFD_RELOC_PPC_EMB_RELST_HI),
1500 MAP ("relsect@ha", (int) BFD_RELOC_PPC_EMB_RELST_HA),
1501 MAP ("bitfld", (int) BFD_RELOC_PPC_EMB_BIT_FLD),
1502 MAP ("relsda", (int) BFD_RELOC_PPC_EMB_RELSDA),
1503 MAP ("xgot", (int) BFD_RELOC_PPC_TOC16),
2b3c4602
AM		 1504 /* The following are only valid for ppc64. Negative values are
1505 used instead of a flag. */
15c1449b
AM		 1506 MAP ("higher", - (int) BFD_RELOC_PPC64_HIGHER),
1507 MAP ("highera", - (int) BFD_RELOC_PPC64_HIGHER_S),
1508 MAP ("highest", - (int) BFD_RELOC_PPC64_HIGHEST),
1509 MAP ("highesta", - (int) BFD_RELOC_PPC64_HIGHEST_S),
1510 MAP ("tocbase", - (int) BFD_RELOC_PPC64_TOC),
1511 MAP ("toc", - (int) BFD_RELOC_PPC_TOC16),
1512 MAP ("toc@l", - (int) BFD_RELOC_PPC64_TOC16_LO),
1513 MAP ("toc@h", - (int) BFD_RELOC_PPC64_TOC16_HI),
1514 MAP ("toc@ha", - (int) BFD_RELOC_PPC64_TOC16_HA),
15c1449b 1515 { (char *) 0, 0, (int) BFD_RELOC_UNUSED }
252b5132
RH		 1516 };
1517
1518 if (*str++ != '@')
1519 return BFD_RELOC_UNUSED;
1520
1521 for (ch = *str, str2 = ident;
1522 (str2 < ident + sizeof (ident) - 1
3882b010 1523 && (ISALNUM (ch) || ch == '@'));
252b5132
RH		 1524 ch = *++str)
1525 {
3882b010 1526 *str2++ = TOLOWER (ch);
252b5132
RH		 1527 }
1528
1529 *str2 = '\0';
1530 len = str2 - ident;
1531
1532 ch = ident[0];
1533 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1534 if (ch == ptr->string[0]
1535 && len == ptr->length
1536 && memcmp (ident, ptr->string, ptr->length) == 0)
1537 {
15c1449b
AM		 1538 int reloc = ptr->reloc;
1539
2b3c4602 1540 if (reloc < 0)
15c1449b 1541 {
2b3c4602 1542 if (!ppc_obj64)
15c1449b
AM		 1543 return BFD_RELOC_UNUSED;
1544 reloc = -reloc;
1545 }
1546
252b5132 1547 if (exp_p->X_add_number != 0
15c1449b
AM		 1548 && (reloc == (int) BFD_RELOC_16_GOTOFF
1549 || reloc == (int) BFD_RELOC_LO16_GOTOFF
1550 || reloc == (int) BFD_RELOC_HI16_GOTOFF
1551 || reloc == (int) BFD_RELOC_HI16_S_GOTOFF))
252b5132
RH		 1552 as_warn (_("identifier+constant@got means identifier@got+constant"));
1553
99a814a1 1554 /* Now check for identifier@suffix+constant. */
252b5132
RH		 1555 if (*str == '-' || *str == '+')
1556 {
1557 char *orig_line = input_line_pointer;
1558 expressionS new_exp;
1559
1560 input_line_pointer = str;
1561 expression (&new_exp);
1562 if (new_exp.X_op == O_constant)
1563 {
1564 exp_p->X_add_number += new_exp.X_add_number;
1565 str = input_line_pointer;
1566 }
1567
1568 if (&input_line_pointer != str_p)
1569 input_line_pointer = orig_line;
1570 }
252b5132 1571 *str_p = str;
0baf16f2 1572
2b3c4602 1573 if (reloc == (int) BFD_RELOC_PPC64_TOC
0baf16f2
AM		 1574 && exp_p->X_op == O_symbol)
1575 {
1576 /* This reloc type ignores the symbol. Change the symbol
1577 so that the dummy .TOC. symbol can be omitted from the
1578 object file. */
1579 exp_p->X_add_symbol = &abs_symbol;
1580 }
1581
15c1449b 1582 return (bfd_reloc_code_real_type) reloc;
252b5132
RH		 1583 }
1584
1585 return BFD_RELOC_UNUSED;
1586}
1587
99a814a1
AM		 1588/* Like normal .long/.short/.word, except support @got, etc.
1589 Clobbers input_line_pointer, checks end-of-line. */
252b5132
RH		 1590static void
1591ppc_elf_cons (nbytes)
0baf16f2 1592 register int nbytes; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */
252b5132
RH		 1593{
1594 expressionS exp;
1595 bfd_reloc_code_real_type reloc;
1596
1597 if (is_it_end_of_statement ())
1598 {
1599 demand_empty_rest_of_line ();
1600 return;
1601 }
1602
1603 do
1604 {
1605 expression (&exp);
1606 if (exp.X_op == O_symbol
1607 && *input_line_pointer == '@'
99a814a1
AM		 1608 && (reloc = ppc_elf_suffix (&input_line_pointer,
1609 &exp)) != BFD_RELOC_UNUSED)
252b5132 1610 {
99a814a1
AM		 1611 reloc_howto_type *reloc_howto;
1612 int size;
1613
1614 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1615 size = bfd_get_reloc_size (reloc_howto);
252b5132
RH		 1616
1617 if (size > nbytes)
0baf16f2
AM		 1618 {
1619 as_bad (_("%s relocations do not fit in %d bytes\n"),
1620 reloc_howto->name, nbytes);
1621 }
252b5132
RH		 1622 else
1623 {
0baf16f2
AM		 1624 char *p;
1625 int offset;
252b5132 1626
0baf16f2
AM		 1627 p = frag_more (nbytes);
1628 offset = 0;
1629 if (target_big_endian)
1630 offset = nbytes - size;
99a814a1
AM		 1631 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
1632 &exp, 0, reloc);
252b5132
RH		 1633 }
1634 }
1635 else
1636 emit_expr (&exp, (unsigned int) nbytes);
1637 }
1638 while (*input_line_pointer++ == ',');
1639
99a814a1
AM		 1640 /* Put terminator back into stream. */
1641 input_line_pointer--;
252b5132
RH		 1642 demand_empty_rest_of_line ();
1643}
1644
1645/* Solaris pseduo op to change to the .rodata section. */
1646static void
1647ppc_elf_rdata (xxx)
1648 int xxx;
1649{
1650 char *save_line = input_line_pointer;
1651 static char section[] = ".rodata\n";
1652
99a814a1 1653 /* Just pretend this is .section .rodata */
252b5132
RH		 1654 input_line_pointer = section;
1655 obj_elf_section (xxx);
1656
1657 input_line_pointer = save_line;
1658}
1659
99a814a1 1660/* Pseudo op to make file scope bss items. */
252b5132 1661static void
99a814a1 1662ppc_elf_lcomm (xxx)
92161534 1663 int xxx ATTRIBUTE_UNUSED;
252b5132
RH		 1664{
1665 register char *name;
1666 register char c;
1667 register char *p;
1668 offsetT size;
1669 register symbolS *symbolP;
1670 offsetT align;
1671 segT old_sec;
1672 int old_subsec;
1673 char *pfrag;
1674 int align2;
1675
1676 name = input_line_pointer;
1677 c = get_symbol_end ();
1678
99a814a1 1679 /* just after name is now '\0'. */
252b5132
RH		 1680 p = input_line_pointer;
1681 *p = c;
1682 SKIP_WHITESPACE ();
1683 if (*input_line_pointer != ',')
1684 {
1685 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1686 ignore_rest_of_line ();
1687 return;
1688 }
1689
1690 input_line_pointer++; /* skip ',' */
1691 if ((size = get_absolute_expression ()) < 0)
1692 {
1693 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
1694 ignore_rest_of_line ();
1695 return;
1696 }
1697
1698 /* The third argument to .lcomm is the alignment. */
1699 if (*input_line_pointer != ',')
1700 align = 8;
1701 else
1702 {
1703 ++input_line_pointer;
1704 align = get_absolute_expression ();
1705 if (align <= 0)
1706 {
1707 as_warn (_("ignoring bad alignment"));
1708 align = 8;
1709 }
1710 }
1711
1712 *p = 0;
1713 symbolP = symbol_find_or_make (name);
1714 *p = c;
1715
1716 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
1717 {
1718 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1719 S_GET_NAME (symbolP));
1720 ignore_rest_of_line ();
1721 return;
1722 }
1723
1724 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
1725 {
1726 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1727 S_GET_NAME (symbolP),
1728 (long) S_GET_VALUE (symbolP),
1729 (long) size);
1730
1731 ignore_rest_of_line ();
1732 return;
1733 }
1734
99a814a1 1735 /* Allocate_bss. */
252b5132
RH		 1736 old_sec = now_seg;
1737 old_subsec = now_subseg;
1738 if (align)
1739 {
99a814a1 1740 /* Convert to a power of 2 alignment. */
252b5132
RH		 1741 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
1742 if (align != 1)
1743 {
1744 as_bad (_("Common alignment not a power of 2"));
1745 ignore_rest_of_line ();
1746 return;
1747 }
1748 }
1749 else
1750 align2 = 0;
1751
1752 record_alignment (bss_section, align2);
1753 subseg_set (bss_section, 0);
1754 if (align2)
1755 frag_align (align2, 0, 0);
1756 if (S_GET_SEGMENT (symbolP) == bss_section)
49309057
ILT		 1757 symbol_get_frag (symbolP)->fr_symbol = 0;
1758 symbol_set_frag (symbolP, frag_now);
252b5132
RH		 1759 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
1760 (char *) 0);
1761 *pfrag = 0;
1762 S_SET_SIZE (symbolP, size);
1763 S_SET_SEGMENT (symbolP, bss_section);
1764 subseg_set (old_sec, old_subsec);
1765 demand_empty_rest_of_line ();
1766}
1767
1768/* Validate any relocations emitted for -mrelocatable, possibly adding
1769 fixups for word relocations in writable segments, so we can adjust
1770 them at runtime. */
1771static void
1772ppc_elf_validate_fix (fixp, seg)
1773 fixS *fixp;
1774 segT seg;
1775{
1776 if (fixp->fx_done || fixp->fx_pcrel)
1777 return;
1778
1779 switch (shlib)
1780 {
1781 case SHLIB_NONE:
1782 case SHLIB_PIC:
1783 return;
1784
5d6f4f16 1785 case SHLIB_MRELOCATABLE:
252b5132
RH		 1786 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
1787 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
1788 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
1789 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
1790 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
1cfc59d5 1791 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
252b5132
RH		 1792 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
1793 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
1794 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
e138127a 1795 && (seg->flags & SEC_LOAD) != 0
252b5132
RH		 1796 && strcmp (segment_name (seg), ".got2") != 0
1797 && strcmp (segment_name (seg), ".dtors") != 0
1798 && strcmp (segment_name (seg), ".ctors") != 0
1799 && strcmp (segment_name (seg), ".fixup") != 0
252b5132
RH		 1800 && strcmp (segment_name (seg), ".gcc_except_table") != 0
1801 && strcmp (segment_name (seg), ".eh_frame") != 0
1802 && strcmp (segment_name (seg), ".ex_shared") != 0)
1803 {
1804 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
1805 || fixp->fx_r_type != BFD_RELOC_CTOR)
1806 {
1807 as_bad_where (fixp->fx_file, fixp->fx_line,
1808 _("Relocation cannot be done when using -mrelocatable"));
1809 }
1810 }
1811 return;
1812 }
1813}
0baf16f2 1814
7e8d4ab4
AM		 1815/* Prevent elf_frob_file_before_adjust removing a weak undefined
1816 function descriptor sym if the corresponding code sym is used. */
1817
1818void
1819ppc_frob_file_before_adjust ()
0baf16f2 1820{
7e8d4ab4 1821 symbolS *symp;
0baf16f2 1822
7e8d4ab4
AM		 1823 if (!ppc_obj64)
1824 return;
1825
1826 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
0baf16f2 1827 {
7e8d4ab4
AM		 1828 const char *name;
1829 char *dotname;
1830 symbolS *dotsym;
1831 size_t len;
1832
1833 name = S_GET_NAME (symp);
1834 if (name[0] == '.')
1835 continue;
1836
1837 if (! S_IS_WEAK (symp)
1838 || S_IS_DEFINED (symp))
1839 continue;
1840
1841 len = strlen (name) + 1;
1842 dotname = xmalloc (len + 1);
1843 dotname[0] = '.';
1844 memcpy (dotname + 1, name, len);
1845 dotsym = symbol_find (dotname);
1846 free (dotname);
1847 if (dotsym != NULL && (symbol_used_p (dotsym)
1848 || symbol_used_in_reloc_p (dotsym)))
1849 {
1850 symbol_mark_used (symp);
1851 }
0baf16f2
AM		 1852 }
1853
7e8d4ab4
AM		 1854 /* Don't emit .TOC. symbol. */
1855 symp = symbol_find (".TOC.");
1856 if (symp != NULL)
1857 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
0baf16f2 1858}
252b5132
RH		 1859#endif /* OBJ_ELF */
1860\f
1861#ifdef TE_PE
1862
1863/*
99a814a1 1864 * Summary of parse_toc_entry.
252b5132
RH		 1865 *
1866 * in: Input_line_pointer points to the '[' in one of:
1867 *
1868 * [toc] [tocv] [toc32] [toc64]
1869 *
1870 * Anything else is an error of one kind or another.
1871 *
81d4177b 1872 * out:
252b5132
RH		 1873 * return value: success or failure
1874 * toc_kind: kind of toc reference
1875 * input_line_pointer:
1876 * success: first char after the ']'
1877 * failure: unchanged
1878 *
1879 * settings:
1880 *
1881 * [toc] - rv == success, toc_kind = default_toc
1882 * [tocv] - rv == success, toc_kind = data_in_toc
1883 * [toc32] - rv == success, toc_kind = must_be_32
1884 * [toc64] - rv == success, toc_kind = must_be_64
1885 *
1886 */
1887
81d4177b
KH		 1888enum toc_size_qualifier
1889{
252b5132
RH		 1890 default_toc, /* The toc cell constructed should be the system default size */
1891 data_in_toc, /* This is a direct reference to a toc cell */
1892 must_be_32, /* The toc cell constructed must be 32 bits wide */
1893 must_be_64 /* The toc cell constructed must be 64 bits wide */
1894};
1895
1896static int
99a814a1 1897parse_toc_entry (toc_kind)
252b5132
RH		 1898 enum toc_size_qualifier *toc_kind;
1899{
1900 char *start;
1901 char *toc_spec;
1902 char c;
1903 enum toc_size_qualifier t;
1904
99a814a1 1905 /* Save the input_line_pointer. */
252b5132
RH		 1906 start = input_line_pointer;
1907
99a814a1 1908 /* Skip over the '[' , and whitespace. */
252b5132
RH		 1909 ++input_line_pointer;
1910 SKIP_WHITESPACE ();
81d4177b 1911
99a814a1 1912 /* Find the spelling of the operand. */
252b5132
RH		 1913 toc_spec = input_line_pointer;
1914 c = get_symbol_end ();
1915
99a814a1 1916 if (strcmp (toc_spec, "toc") == 0)
252b5132
RH		 1917 {
1918 t = default_toc;
1919 }
99a814a1 1920 else if (strcmp (toc_spec, "tocv") == 0)
252b5132
RH		 1921 {
1922 t = data_in_toc;
1923 }
99a814a1 1924 else if (strcmp (toc_spec, "toc32") == 0)
252b5132
RH		 1925 {
1926 t = must_be_32;
1927 }
99a814a1 1928 else if (strcmp (toc_spec, "toc64") == 0)
252b5132
RH		 1929 {
1930 t = must_be_64;
1931 }
1932 else
1933 {
1934 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
99a814a1
AM		 1935 *input_line_pointer = c;
1936 input_line_pointer = start;
252b5132
RH		 1937 return 0;
1938 }
1939
99a814a1
AM		 1940 /* Now find the ']'. */
1941 *input_line_pointer = c;
252b5132 1942
81d4177b
KH		 1943 SKIP_WHITESPACE (); /* leading whitespace could be there. */
1944 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
252b5132
RH		 1945
1946 if (c != ']')
1947 {
1948 as_bad (_("syntax error: expected `]', found `%c'"), c);
99a814a1 1949 input_line_pointer = start;
252b5132
RH		 1950 return 0;
1951 }
1952
99a814a1 1953 *toc_kind = t;
252b5132
RH		 1954 return 1;
1955}
1956#endif
1957\f
1958
dc1d03fc 1959#ifdef OBJ_ELF
6a0c61b7
EZ		 1960#define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
1961static void
dc1d03fc 1962ppc_apuinfo_section_add (apu, version)
6a0c61b7
EZ		 1963 unsigned int apu, version;
1964{
1965 unsigned int i;
1966
1967 /* Check we don't already exist. */
1968 for (i = 0; i < ppc_apuinfo_num; i++)
dc1d03fc 1969 if (ppc_apuinfo_list[i] == APUID (apu, version))
6a0c61b7
EZ		 1970 return;
1971
1972 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
1973 {
1974 if (ppc_apuinfo_num_alloc == 0)
1975 {
1976 ppc_apuinfo_num_alloc = 4;
1977 ppc_apuinfo_list = (unsigned long *)
1978 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
1979 }
1980 else
1981 {
1982 ppc_apuinfo_num_alloc += 4;
1983 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
1984 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
1985 }
1986 }
dc1d03fc 1987 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
6a0c61b7
EZ		 1988}
1989#undef APUID
dc1d03fc 1990#endif
6a0c61b7
EZ		 1991\f
1992
252b5132
RH		 1993/* We need to keep a list of fixups. We can't simply generate them as
1994 we go, because that would require us to first create the frag, and
1995 that would screw up references to ``.''. */
1996
1997struct ppc_fixup
1998{
1999 expressionS exp;
2000 int opindex;
2001 bfd_reloc_code_real_type reloc;
2002};
2003
2004#define MAX_INSN_FIXUPS (5)
2005
2006/* This routine is called for each instruction to be assembled. */
2007
2008void
2009md_assemble (str)
2010 char *str;
2011{
2012 char *s;
2013 const struct powerpc_opcode *opcode;
2014 unsigned long insn;
2015 const unsigned char *opindex_ptr;
2016 int skip_optional;
2017 int need_paren;
2018 int next_opindex;
2019 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2020 int fc;
2021 char *f;
2022 int i;
2023#ifdef OBJ_ELF
2024 bfd_reloc_code_real_type reloc;
2025#endif
2026
2027 /* Get the opcode. */
3882b010 2028 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
252b5132
RH		 2029 ;
2030 if (*s != '\0')
2031 *s++ = '\0';
2032
2033 /* Look up the opcode in the hash table. */
2034 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2035 if (opcode == (const struct powerpc_opcode *) NULL)
2036 {
2037 const struct powerpc_macro *macro;
2038
2039 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2040 if (macro == (const struct powerpc_macro *) NULL)
2041 as_bad (_("Unrecognized opcode: `%s'"), str);
2042 else
2043 ppc_macro (s, macro);
2044
2045 return;
2046 }
2047
2048 insn = opcode->opcode;
2049
2050 str = s;
3882b010 2051 while (ISSPACE (*str))
252b5132
RH		 2052 ++str;
2053
2054 /* PowerPC operands are just expressions. The only real issue is
2055 that a few operand types are optional. All cases which might use
2056 an optional operand separate the operands only with commas (in
2057 some cases parentheses are used, as in ``lwz 1,0(1)'' but such
2058 cases never have optional operands). There is never more than
2059 one optional operand for an instruction. So, before we start
2060 seriously parsing the operands, we check to see if we have an
2061 optional operand, and, if we do, we count the number of commas to
2062 see whether the operand should be omitted. */
2063 skip_optional = 0;
2064 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2065 {
2066 const struct powerpc_operand *operand;
2067
2068 operand = &powerpc_operands[*opindex_ptr];
2069 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2070 {
2071 unsigned int opcount;
2072
2073 /* There is an optional operand. Count the number of
2074 commas in the input line. */
2075 if (*str == '\0')
2076 opcount = 0;
2077 else
2078 {
2079 opcount = 1;
2080 s = str;
2081 while ((s = strchr (s, ',')) != (char *) NULL)
2082 {
2083 ++opcount;
2084 ++s;
2085 }
2086 }
2087
2088 /* If there are fewer operands in the line then are called
2089 for by the instruction, we want to skip the optional
2090 operand. */
2091 if (opcount < strlen (opcode->operands))
2092 skip_optional = 1;
2093
2094 break;
2095 }
2096 }
2097
2098 /* Gather the operands. */
2099 need_paren = 0;
2100 next_opindex = 0;
2101 fc = 0;
2102 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2103 {
2104 const struct powerpc_operand *operand;
2105 const char *errmsg;
2106 char *hold;
2107 expressionS ex;
2108 char endc;
2109
2110 if (next_opindex == 0)
2111 operand = &powerpc_operands[*opindex_ptr];
2112 else
2113 {
2114 operand = &powerpc_operands[next_opindex];
2115 next_opindex = 0;
2116 }
252b5132
RH		 2117 errmsg = NULL;
2118
2119 /* If this is a fake operand, then we do not expect anything
2120 from the input. */
2121 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2122 {
2b3c4602 2123 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
252b5132
RH		 2124 if (errmsg != (const char *) NULL)
2125 as_bad (errmsg);
2126 continue;
2127 }
2128
2129 /* If this is an optional operand, and we are skipping it, just
2130 insert a zero. */
2131 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2132 && skip_optional)
2133 {
2134 if (operand->insert)
2135 {
2b3c4602 2136 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
252b5132
RH		 2137 if (errmsg != (const char *) NULL)
2138 as_bad (errmsg);
2139 }
2140 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2141 next_opindex = *opindex_ptr + 1;
2142 continue;
2143 }
2144
2145 /* Gather the operand. */
2146 hold = input_line_pointer;
2147 input_line_pointer = str;
2148
2149#ifdef TE_PE
81d4177b 2150 if (*input_line_pointer == '[')
252b5132
RH		 2151 {
2152 /* We are expecting something like the second argument here:
99a814a1
AM		 2153 *
2154 * lwz r4,[toc].GS.0.static_int(rtoc)
2155 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2156 * The argument following the `]' must be a symbol name, and the
2157 * register must be the toc register: 'rtoc' or '2'
2158 *
2159 * The effect is to 0 as the displacement field
2160 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2161 * the appropriate variation) reloc against it based on the symbol.
2162 * The linker will build the toc, and insert the resolved toc offset.
2163 *
2164 * Note:
2165 * o The size of the toc entry is currently assumed to be
2166 * 32 bits. This should not be assumed to be a hard coded
2167 * number.
2168 * o In an effort to cope with a change from 32 to 64 bits,
2169 * there are also toc entries that are specified to be
2170 * either 32 or 64 bits:
2171 * lwz r4,[toc32].GS.0.static_int(rtoc)
2172 * lwz r4,[toc64].GS.0.static_int(rtoc)
2173 * These demand toc entries of the specified size, and the
2174 * instruction probably requires it.
2175 */
252b5132
RH		 2176
2177 int valid_toc;
2178 enum toc_size_qualifier toc_kind;
2179 bfd_reloc_code_real_type toc_reloc;
2180
99a814a1
AM		 2181 /* Go parse off the [tocXX] part. */
2182 valid_toc = parse_toc_entry (&toc_kind);
252b5132 2183
81d4177b 2184 if (!valid_toc)
252b5132 2185 {
99a814a1
AM		 2186 /* Note: message has already been issued.
2187 FIXME: what sort of recovery should we do?
2188 demand_rest_of_line (); return; ? */
252b5132
RH		 2189 }
2190
99a814a1
AM		 2191 /* Now get the symbol following the ']'. */
2192 expression (&ex);
252b5132
RH		 2193
2194 switch (toc_kind)
2195 {
2196 case default_toc:
99a814a1
AM		 2197 /* In this case, we may not have seen the symbol yet,
2198 since it is allowed to appear on a .extern or .globl
2199 or just be a label in the .data section. */
252b5132
RH		 2200 toc_reloc = BFD_RELOC_PPC_TOC16;
2201 break;
2202 case data_in_toc:
99a814a1
AM		 2203 /* 1. The symbol must be defined and either in the toc
2204 section, or a global.
2205 2. The reloc generated must have the TOCDEFN flag set
2206 in upper bit mess of the reloc type.
2207 FIXME: It's a little confusing what the tocv
2208 qualifier can be used for. At the very least, I've
2209 seen three uses, only one of which I'm sure I can
2210 explain. */
81d4177b
KH		 2211 if (ex.X_op == O_symbol)
2212 {
252b5132 2213 assert (ex.X_add_symbol != NULL);
fed9b18a
ILT		 2214 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2215 != tocdata_section)
252b5132 2216 {
99a814a1 2217 as_bad (_("[tocv] symbol is not a toc symbol"));
252b5132
RH		 2218 }
2219 }
2220
2221 toc_reloc = BFD_RELOC_PPC_TOC16;
2222 break;
2223 case must_be_32:
99a814a1
AM		 2224 /* FIXME: these next two specifically specify 32/64 bit
2225 toc entries. We don't support them today. Is this
2226 the right way to say that? */
252b5132
RH		 2227 toc_reloc = BFD_RELOC_UNUSED;
2228 as_bad (_("Unimplemented toc32 expression modifier"));
2229 break;
2230 case must_be_64:
99a814a1 2231 /* FIXME: see above. */
252b5132
RH		 2232 toc_reloc = BFD_RELOC_UNUSED;
2233 as_bad (_("Unimplemented toc64 expression modifier"));
2234 break;
2235 default:
bc805888 2236 fprintf (stderr,
99a814a1
AM		 2237 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2238 toc_kind);
bc805888 2239 abort ();
252b5132
RH		 2240 break;
2241 }
2242
2243 /* We need to generate a fixup for this expression. */
2244 if (fc >= MAX_INSN_FIXUPS)
2245 as_fatal (_("too many fixups"));
2246
2247 fixups[fc].reloc = toc_reloc;
2248 fixups[fc].exp = ex;
2249 fixups[fc].opindex = *opindex_ptr;
2250 ++fc;
2251
99a814a1
AM		 2252 /* Ok. We've set up the fixup for the instruction. Now make it
2253 look like the constant 0 was found here. */
252b5132
RH		 2254 ex.X_unsigned = 1;
2255 ex.X_op = O_constant;
2256 ex.X_add_number = 0;
2257 ex.X_add_symbol = NULL;
2258 ex.X_op_symbol = NULL;
2259 }
2260
2261 else
2262#endif /* TE_PE */
2263 {
2264 if (! register_name (&ex))
2265 {
2266 if ((operand->flags & PPC_OPERAND_CR) != 0)
2267 cr_operand = true;
2268 expression (&ex);
2269 cr_operand = false;
2270 }
2271 }
2272
2273 str = input_line_pointer;
2274 input_line_pointer = hold;
2275
2276 if (ex.X_op == O_illegal)
2277 as_bad (_("illegal operand"));
2278 else if (ex.X_op == O_absent)
2279 as_bad (_("missing operand"));
2280 else if (ex.X_op == O_register)
2281 {
2282 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2283 (char *) NULL, 0);
2284 }
2285 else if (ex.X_op == O_constant)
2286 {
2287#ifdef OBJ_ELF
81d4177b 2288 /* Allow @HA, @L, @H on constants. */
252b5132
RH		 2289 char *orig_str = str;
2290
2291 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2292 switch (reloc)
2293 {
2294 default:
2295 str = orig_str;
2296 break;
2297
2298 case BFD_RELOC_LO16:
2299 /* X_unsigned is the default, so if the user has done
0baf16f2
AM		 2300 something which cleared it, we always produce a
2301 signed value. */
2302 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
252b5132
RH		 2303 ex.X_add_number &= 0xffff;
2304 else
0baf16f2 2305 ex.X_add_number = SEX16 (ex.X_add_number);
252b5132
RH		 2306 break;
2307
2308 case BFD_RELOC_HI16:
0baf16f2
AM		 2309 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2310 ex.X_add_number = PPC_HI (ex.X_add_number);
2311 else
2312 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
252b5132
RH		 2313 break;
2314
2315 case BFD_RELOC_HI16_S:
0baf16f2
AM		 2316 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2317 ex.X_add_number = PPC_HA (ex.X_add_number);
2318 else
2319 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2320 break;
2321
0baf16f2
AM		 2322 case BFD_RELOC_PPC64_HIGHER:
2323 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2324 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2325 else
2326 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2327 break;
2328
2329 case BFD_RELOC_PPC64_HIGHER_S:
2330 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2331 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2332 else
2333 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
252b5132 2334 break;
0baf16f2
AM		 2335
2336 case BFD_RELOC_PPC64_HIGHEST:
2337 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2338 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2339 else
2340 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2341 break;
2342
2343 case BFD_RELOC_PPC64_HIGHEST_S:
2344 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2345 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2346 else
2347 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2348 break;
252b5132 2349 }
0baf16f2 2350#endif /* OBJ_ELF */
252b5132
RH		 2351 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2352 (char *) NULL, 0);
2353 }
2354#ifdef OBJ_ELF
2355 else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2356 {
99a814a1
AM		 2357 /* For the absolute forms of branches, convert the PC
2358 relative form back into the absolute. */
252b5132
RH		 2359 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2360 {
2361 switch (reloc)
2362 {
2363 case BFD_RELOC_PPC_B26:
2364 reloc = BFD_RELOC_PPC_BA26;
2365 break;
2366 case BFD_RELOC_PPC_B16:
2367 reloc = BFD_RELOC_PPC_BA16;
2368 break;
2369 case BFD_RELOC_PPC_B16_BRTAKEN:
2370 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2371 break;
2372 case BFD_RELOC_PPC_B16_BRNTAKEN:
2373 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2374 break;
2375 default:
2376 break;
2377 }
2378 }
2379
2b3c4602 2380 if (ppc_obj64
0baf16f2
AM		 2381 && (operand->flags & PPC_OPERAND_DS) != 0)
2382 {
2383 switch (reloc)
2384 {
2385 case BFD_RELOC_16:
2386 reloc = BFD_RELOC_PPC64_ADDR16_DS;
2387 break;
2388 case BFD_RELOC_LO16:
2389 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
2390 break;
2391 case BFD_RELOC_16_GOTOFF:
2392 reloc = BFD_RELOC_PPC64_GOT16_DS;
2393 break;
2394 case BFD_RELOC_LO16_GOTOFF:
2395 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
2396 break;
2397 case BFD_RELOC_LO16_PLTOFF:
2398 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
2399 break;
1cfc59d5 2400 case BFD_RELOC_16_BASEREL:
0baf16f2
AM		 2401 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
2402 break;
2403 case BFD_RELOC_LO16_BASEREL:
2404 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
2405 break;
2406 case BFD_RELOC_PPC_TOC16:
2407 reloc = BFD_RELOC_PPC64_TOC16_DS;
2408 break;
2409 case BFD_RELOC_PPC64_TOC16_LO:
2410 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
2411 break;
2412 case BFD_RELOC_PPC64_PLTGOT16:
2413 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
2414 break;
2415 case BFD_RELOC_PPC64_PLTGOT16_LO:
2416 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
2417 break;
2418 default:
2419 as_bad (_("unsupported relocation for DS offset field"));
2420 break;
2421 }
2422 }
2423
252b5132
RH		 2424 /* We need to generate a fixup for this expression. */
2425 if (fc >= MAX_INSN_FIXUPS)
2426 as_fatal (_("too many fixups"));
2427 fixups[fc].exp = ex;
2428 fixups[fc].opindex = 0;
2429 fixups[fc].reloc = reloc;
2430 ++fc;
2431 }
2432#endif /* OBJ_ELF */
2433
2434 else
2435 {
2436 /* We need to generate a fixup for this expression. */
2437 if (fc >= MAX_INSN_FIXUPS)
2438 as_fatal (_("too many fixups"));
2439 fixups[fc].exp = ex;
2440 fixups[fc].opindex = *opindex_ptr;
2441 fixups[fc].reloc = BFD_RELOC_UNUSED;
2442 ++fc;
2443 }
2444
2445 if (need_paren)
2446 {
2447 endc = ')';
2448 need_paren = 0;
2449 }
2450 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
2451 {
2452 endc = '(';
2453 need_paren = 1;
2454 }
2455 else
2456 endc = ',';
2457
2458 /* The call to expression should have advanced str past any
2459 whitespace. */
2460 if (*str != endc
2461 && (endc != ',' || *str != '\0'))
2462 {
2463 as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc);
2464 break;
2465 }
2466
2467 if (*str != '\0')
2468 ++str;
2469 }
2470
3882b010 2471 while (ISSPACE (*str))
252b5132
RH		 2472 ++str;
2473
2474 if (*str != '\0')
2475 as_bad (_("junk at end of line: `%s'"), str);
2476
dc1d03fc 2477#ifdef OBJ_ELF
6a0c61b7
EZ		 2478 /* Do we need/want a APUinfo section? */
2479 if (ppc_cpu & (PPC_OPCODE_SPE
2480 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS
2481 | PPC_OPCODE_BRLOCK | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
2482 | PPC_OPCODE_RFMCI))
2483 {
2484 /* These are all version "1". */
2485 if (opcode->flags & PPC_OPCODE_SPE)
dc1d03fc 2486 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
6a0c61b7 2487 if (opcode->flags & PPC_OPCODE_ISEL)
dc1d03fc 2488 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
6a0c61b7 2489 if (opcode->flags & PPC_OPCODE_EFS)
dc1d03fc 2490 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
6a0c61b7 2491 if (opcode->flags & PPC_OPCODE_BRLOCK)
dc1d03fc 2492 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
6a0c61b7 2493 if (opcode->flags & PPC_OPCODE_PMR)
dc1d03fc 2494 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
6a0c61b7 2495 if (opcode->flags & PPC_OPCODE_CACHELCK)
dc1d03fc 2496 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
6a0c61b7 2497 if (opcode->flags & PPC_OPCODE_RFMCI)
dc1d03fc 2498 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
6a0c61b7 2499 }
dc1d03fc 2500#endif
6a0c61b7 2501
252b5132
RH		 2502 /* Write out the instruction. */
2503 f = frag_more (4);
2504 md_number_to_chars (f, insn, 4);
2505
5d6f4f16
GK		 2506#ifdef OBJ_ELF
2507 dwarf2_emit_insn (4);
2508#endif
2509
252b5132
RH		 2510 /* Create any fixups. At this point we do not use a
2511 bfd_reloc_code_real_type, but instead just use the
2512 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2513 handle fixups for any operand type, although that is admittedly
2514 not a very exciting feature. We pick a BFD reloc type in
94f592af 2515 md_apply_fix3. */
252b5132
RH		 2516 for (i = 0; i < fc; i++)
2517 {
2518 const struct powerpc_operand *operand;
2519
2520 operand = &powerpc_operands[fixups[i].opindex];
2521 if (fixups[i].reloc != BFD_RELOC_UNUSED)
2522 {
99a814a1 2523 reloc_howto_type *reloc_howto;
252b5132
RH		 2524 int size;
2525 int offset;
2526 fixS *fixP;
2527
99a814a1 2528 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
252b5132
RH		 2529 if (!reloc_howto)
2530 abort ();
2531
2532 size = bfd_get_reloc_size (reloc_howto);
2533 offset = target_big_endian ? (4 - size) : 0;
2534
2535 if (size < 1 || size > 4)
bc805888 2536 abort ();
252b5132 2537
99a814a1
AM		 2538 fixP = fix_new_exp (frag_now,
2539 f - frag_now->fr_literal + offset,
2540 size,
2541 &fixups[i].exp,
2542 reloc_howto->pc_relative,
252b5132
RH		 2543 fixups[i].reloc);
2544
2545 /* Turn off complaints that the addend is too large for things like
2546 foo+100000@ha. */
2547 switch (fixups[i].reloc)
2548 {
2549 case BFD_RELOC_16_GOTOFF:
2550 case BFD_RELOC_PPC_TOC16:
2551 case BFD_RELOC_LO16:
2552 case BFD_RELOC_HI16:
2553 case BFD_RELOC_HI16_S:
0baf16f2 2554#ifdef OBJ_ELF
0baf16f2
AM		 2555 case BFD_RELOC_PPC64_HIGHER:
2556 case BFD_RELOC_PPC64_HIGHER_S:
2557 case BFD_RELOC_PPC64_HIGHEST:
2558 case BFD_RELOC_PPC64_HIGHEST_S:
0baf16f2 2559#endif
252b5132
RH		 2560 fixP->fx_no_overflow = 1;
2561 break;
2562 default:
2563 break;
2564 }
2565 }
2566 else
99a814a1
AM		 2567 fix_new_exp (frag_now,
2568 f - frag_now->fr_literal,
2569 4,
252b5132
RH		 2570 &fixups[i].exp,
2571 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
2572 ((bfd_reloc_code_real_type)
99a814a1 2573 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
252b5132
RH		 2574 }
2575}
2576
2577/* Handle a macro. Gather all the operands, transform them as
2578 described by the macro, and call md_assemble recursively. All the
2579 operands are separated by commas; we don't accept parentheses
2580 around operands here. */
2581
2582static void
2583ppc_macro (str, macro)
2584 char *str;
2585 const struct powerpc_macro *macro;
2586{
2587 char *operands[10];
2588 unsigned int count;
2589 char *s;
2590 unsigned int len;
2591 const char *format;
2592 int arg;
2593 char *send;
2594 char *complete;
2595
2596 /* Gather the users operands into the operands array. */
2597 count = 0;
2598 s = str;
2599 while (1)
2600 {
2601 if (count >= sizeof operands / sizeof operands[0])
2602 break;
2603 operands[count++] = s;
2604 s = strchr (s, ',');
2605 if (s == (char *) NULL)
2606 break;
2607 *s++ = '\0';
81d4177b 2608 }
252b5132
RH		 2609
2610 if (count != macro->operands)
2611 {
2612 as_bad (_("wrong number of operands"));
2613 return;
2614 }
2615
2616 /* Work out how large the string must be (the size is unbounded
2617 because it includes user input). */
2618 len = 0;
2619 format = macro->format;
2620 while (*format != '\0')
2621 {
2622 if (*format != '%')
2623 {
2624 ++len;
2625 ++format;
2626 }
2627 else
2628 {
2629 arg = strtol (format + 1, &send, 10);
2630 know (send != format && arg >= 0 && arg < count);
2631 len += strlen (operands[arg]);
2632 format = send;
2633 }
2634 }
2635
2636 /* Put the string together. */
2637 complete = s = (char *) alloca (len + 1);
2638 format = macro->format;
2639 while (*format != '\0')
2640 {
2641 if (*format != '%')
2642 *s++ = *format++;
2643 else
2644 {
2645 arg = strtol (format + 1, &send, 10);
2646 strcpy (s, operands[arg]);
2647 s += strlen (s);
2648 format = send;
2649 }
2650 }
2651 *s = '\0';
2652
2653 /* Assemble the constructed instruction. */
2654 md_assemble (complete);
81d4177b 2655}
252b5132
RH		 2656\f
2657#ifdef OBJ_ELF
99a814a1 2658/* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
252b5132
RH		 2659
2660int
2661ppc_section_letter (letter, ptr_msg)
2662 int letter;
2663 char **ptr_msg;
2664{
2665 if (letter == 'e')
2666 return SHF_EXCLUDE;
2667
13ae64f3 2668 *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
252b5132
RH		 2669 return 0;
2670}
2671
2672int
9de8d8f1
RH		 2673ppc_section_word (str, len)
2674 char *str;
2675 size_t len;
252b5132 2676{
9de8d8f1
RH		 2677 if (len == 7 && strncmp (str, "exclude", 7) == 0)
2678 return SHF_EXCLUDE;
252b5132 2679
9de8d8f1 2680 return -1;
252b5132
RH		 2681}
2682
2683int
9de8d8f1
RH		 2684ppc_section_type (str, len)
2685 char *str;
2686 size_t len;
252b5132 2687{
9de8d8f1
RH		 2688 if (len == 7 && strncmp (str, "ordered", 7) == 0)
2689 return SHT_ORDERED;
252b5132 2690
9de8d8f1 2691 return -1;
252b5132
RH		 2692}
2693
2694int
2695ppc_section_flags (flags, attr, type)
2696 int flags;
2697 int attr;
2698 int type;
2699{
2700 if (type == SHT_ORDERED)
2701 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
2702
2703 if (attr & SHF_EXCLUDE)
2704 flags |= SEC_EXCLUDE;
2705
2706 return flags;
2707}
2708#endif /* OBJ_ELF */
2709
2710\f
2711/* Pseudo-op handling. */
2712
2713/* The .byte pseudo-op. This is similar to the normal .byte
2714 pseudo-op, but it can also take a single ASCII string. */
2715
2716static void
2717ppc_byte (ignore)
92161534 2718 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 2719{
2720 if (*input_line_pointer != '\"')
2721 {
2722 cons (1);
2723 return;
2724 }
2725
2726 /* Gather characters. A real double quote is doubled. Unusual
2727 characters are not permitted. */
2728 ++input_line_pointer;
2729 while (1)
2730 {
2731 char c;
2732
2733 c = *input_line_pointer++;
2734
2735 if (c == '\"')
2736 {
2737 if (*input_line_pointer != '\"')
2738 break;
2739 ++input_line_pointer;
2740 }
2741
2742 FRAG_APPEND_1_CHAR (c);
2743 }
2744
2745 demand_empty_rest_of_line ();
2746}
2747\f
2748#ifdef OBJ_XCOFF
2749
2750/* XCOFF specific pseudo-op handling. */
2751
2752/* This is set if we are creating a .stabx symbol, since we don't want
2753 to handle symbol suffixes for such symbols. */
2754static boolean ppc_stab_symbol;
2755
2756/* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2757 symbols in the .bss segment as though they were local common
1ad63b2f
TR		 2758 symbols, and uses a different smclas. The native Aix 4.3.3 assember
2759 aligns .comm and .lcomm to 4 bytes. */
252b5132
RH		 2760
2761static void
2762ppc_comm (lcomm)
2763 int lcomm;
2764{
2765 asection *current_seg = now_seg;
2766 subsegT current_subseg = now_subseg;
2767 char *name;
2768 char endc;
2769 char *end_name;
2770 offsetT size;
2771 offsetT align;
2772 symbolS *lcomm_sym = NULL;
2773 symbolS *sym;
2774 char *pfrag;
2775
2776 name = input_line_pointer;
2777 endc = get_symbol_end ();
2778 end_name = input_line_pointer;
2779 *end_name = endc;
2780
2781 if (*input_line_pointer != ',')
2782 {
2783 as_bad (_("missing size"));
2784 ignore_rest_of_line ();
2785 return;
2786 }
2787 ++input_line_pointer;
2788
2789 size = get_absolute_expression ();
2790 if (size < 0)
2791 {
2792 as_bad (_("negative size"));
2793 ignore_rest_of_line ();
2794 return;
2795 }
2796
2797 if (! lcomm)
2798 {
2799 /* The third argument to .comm is the alignment. */
2800 if (*input_line_pointer != ',')
1ad63b2f 2801 align = 2;
252b5132
RH		 2802 else
2803 {
2804 ++input_line_pointer;
2805 align = get_absolute_expression ();
2806 if (align <= 0)
2807 {
2808 as_warn (_("ignoring bad alignment"));
1ad63b2f 2809 align = 2;
252b5132
RH		 2810 }
2811 }
2812 }
2813 else
2814 {
2815 char *lcomm_name;
2816 char lcomm_endc;
2817
1ad63b2f 2818 if (size <= 4)
252b5132
RH		 2819 align = 2;
2820 else
2821 align = 3;
2822
2823 /* The third argument to .lcomm appears to be the real local
2824 common symbol to create. References to the symbol named in
2825 the first argument are turned into references to the third
2826 argument. */
2827 if (*input_line_pointer != ',')
2828 {
2829 as_bad (_("missing real symbol name"));
2830 ignore_rest_of_line ();
2831 return;
2832 }
2833 ++input_line_pointer;
2834
2835 lcomm_name = input_line_pointer;
2836 lcomm_endc = get_symbol_end ();
81d4177b 2837
252b5132
RH		 2838 lcomm_sym = symbol_find_or_make (lcomm_name);
2839
2840 *input_line_pointer = lcomm_endc;
2841 }
2842
2843 *end_name = '\0';
2844 sym = symbol_find_or_make (name);
2845 *end_name = endc;
2846
2847 if (S_IS_DEFINED (sym)
2848 || S_GET_VALUE (sym) != 0)
2849 {
2850 as_bad (_("attempt to redefine symbol"));
2851 ignore_rest_of_line ();
2852 return;
2853 }
81d4177b 2854
252b5132 2855 record_alignment (bss_section, align);
81d4177b 2856
252b5132
RH		 2857 if (! lcomm
2858 || ! S_IS_DEFINED (lcomm_sym))
2859 {
2860 symbolS *def_sym;
2861 offsetT def_size;
2862
2863 if (! lcomm)
2864 {
2865 def_sym = sym;
2866 def_size = size;
2867 S_SET_EXTERNAL (sym);
2868 }
2869 else
2870 {
809ffe0d 2871 symbol_get_tc (lcomm_sym)->output = 1;
252b5132
RH		 2872 def_sym = lcomm_sym;
2873 def_size = 0;
2874 }
2875
2876 subseg_set (bss_section, 1);
2877 frag_align (align, 0, 0);
81d4177b 2878
809ffe0d 2879 symbol_set_frag (def_sym, frag_now);
252b5132
RH		 2880 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
2881 def_size, (char *) NULL);
2882 *pfrag = 0;
2883 S_SET_SEGMENT (def_sym, bss_section);
809ffe0d 2884 symbol_get_tc (def_sym)->align = align;
252b5132
RH		 2885 }
2886 else if (lcomm)
2887 {
2888 /* Align the size of lcomm_sym. */
809ffe0d
ILT		 2889 symbol_get_frag (lcomm_sym)->fr_offset =
2890 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
252b5132 2891 &~ ((1 << align) - 1));
809ffe0d
ILT		 2892 if (align > symbol_get_tc (lcomm_sym)->align)
2893 symbol_get_tc (lcomm_sym)->align = align;
252b5132
RH		 2894 }
2895
2896 if (lcomm)
2897 {
2898 /* Make sym an offset from lcomm_sym. */
2899 S_SET_SEGMENT (sym, bss_section);
809ffe0d
ILT		 2900 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
2901 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
2902 symbol_get_frag (lcomm_sym)->fr_offset += size;
252b5132
RH		 2903 }
2904
2905 subseg_set (current_seg, current_subseg);
2906
2907 demand_empty_rest_of_line ();
2908}
2909
2910/* The .csect pseudo-op. This switches us into a different
2911 subsegment. The first argument is a symbol whose value is the
2912 start of the .csect. In COFF, csect symbols get special aux
2913 entries defined by the x_csect field of union internal_auxent. The
2914 optional second argument is the alignment (the default is 2). */
2915
2916static void
2917ppc_csect (ignore)
5480ccf3 2918 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 2919{
2920 char *name;
2921 char endc;
2922 symbolS *sym;
2923
2924 name = input_line_pointer;
2925 endc = get_symbol_end ();
81d4177b 2926
252b5132
RH		 2927 sym = symbol_find_or_make (name);
2928
2929 *input_line_pointer = endc;
2930
2931 if (S_GET_NAME (sym)[0] == '\0')
2932 {
2933 /* An unnamed csect is assumed to be [PR]. */
809ffe0d 2934 symbol_get_tc (sym)->class = XMC_PR;
252b5132
RH		 2935 }
2936
2937 ppc_change_csect (sym);
2938
2939 if (*input_line_pointer == ',')
2940 {
2941 ++input_line_pointer;
809ffe0d 2942 symbol_get_tc (sym)->align = get_absolute_expression ();
252b5132
RH		 2943 }
2944
2945 demand_empty_rest_of_line ();
2946}
2947
2948/* Change to a different csect. */
2949
2950static void
2951ppc_change_csect (sym)
2952 symbolS *sym;
2953{
2954 if (S_IS_DEFINED (sym))
809ffe0d 2955 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
252b5132
RH		 2956 else
2957 {
2958 symbolS **list_ptr;
2959 int after_toc;
2960 int hold_chunksize;
2961 symbolS *list;
2962
2963 /* This is a new csect. We need to look at the symbol class to
2964 figure out whether it should go in the text section or the
2965 data section. */
2966 after_toc = 0;
809ffe0d 2967 switch (symbol_get_tc (sym)->class)
252b5132
RH		 2968 {
2969 case XMC_PR:
2970 case XMC_RO:
2971 case XMC_DB:
2972 case XMC_GL:
2973 case XMC_XO:
2974 case XMC_SV:
2975 case XMC_TI:
2976 case XMC_TB:
2977 S_SET_SEGMENT (sym, text_section);
809ffe0d 2978 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
252b5132
RH		 2979 ++ppc_text_subsegment;
2980 list_ptr = &ppc_text_csects;
2981 break;
2982 case XMC_RW:
2983 case XMC_TC0:
2984 case XMC_TC:
2985 case XMC_DS:
2986 case XMC_UA:
2987 case XMC_BS:
2988 case XMC_UC:
2989 if (ppc_toc_csect != NULL
809ffe0d
ILT		 2990 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
2991 == ppc_data_subsegment))
252b5132
RH		 2992 after_toc = 1;
2993 S_SET_SEGMENT (sym, data_section);
809ffe0d 2994 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
252b5132
RH		 2995 ++ppc_data_subsegment;
2996 list_ptr = &ppc_data_csects;
2997 break;
2998 default:
2999 abort ();
3000 }
3001
3002 /* We set the obstack chunk size to a small value before
99a814a1
AM		 3003 changing subsegments, so that we don't use a lot of memory
3004 space for what may be a small section. */
252b5132
RH		 3005 hold_chunksize = chunksize;
3006 chunksize = 64;
3007
809ffe0d
ILT		 3008 subseg_new (segment_name (S_GET_SEGMENT (sym)),
3009 symbol_get_tc (sym)->subseg);
252b5132
RH		 3010
3011 chunksize = hold_chunksize;
3012
3013 if (after_toc)
3014 ppc_after_toc_frag = frag_now;
3015
809ffe0d 3016 symbol_set_frag (sym, frag_now);
252b5132
RH		 3017 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3018
b4f96c78 3019 symbol_get_tc (sym)->align = 2;
809ffe0d
ILT		 3020 symbol_get_tc (sym)->output = 1;
3021 symbol_get_tc (sym)->within = sym;
81d4177b 3022
252b5132 3023 for (list = *list_ptr;
809ffe0d
ILT		 3024 symbol_get_tc (list)->next != (symbolS *) NULL;
3025 list = symbol_get_tc (list)->next)
252b5132 3026 ;
809ffe0d 3027 symbol_get_tc (list)->next = sym;
81d4177b 3028
252b5132 3029 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
809ffe0d
ILT		 3030 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3031 &symbol_lastP);
252b5132
RH		 3032 }
3033
3034 ppc_current_csect = sym;
3035}
3036
3037/* This function handles the .text and .data pseudo-ops. These
3038 pseudo-ops aren't really used by XCOFF; we implement them for the
3039 convenience of people who aren't used to XCOFF. */
3040
3041static void
3042ppc_section (type)
3043 int type;
3044{
3045 const char *name;
3046 symbolS *sym;
3047
3048 if (type == 't')
3049 name = ".text[PR]";
3050 else if (type == 'd')
3051 name = ".data[RW]";
3052 else
3053 abort ();
3054
3055 sym = symbol_find_or_make (name);
3056
3057 ppc_change_csect (sym);
3058
3059 demand_empty_rest_of_line ();
3060}
3061
3062/* This function handles the .section pseudo-op. This is mostly to
3063 give an error, since XCOFF only supports .text, .data and .bss, but
3064 we do permit the user to name the text or data section. */
3065
3066static void
3067ppc_named_section (ignore)
5480ccf3 3068 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3069{
3070 char *user_name;
3071 const char *real_name;
3072 char c;
3073 symbolS *sym;
3074
3075 user_name = input_line_pointer;
3076 c = get_symbol_end ();
3077
3078 if (strcmp (user_name, ".text") == 0)
3079 real_name = ".text[PR]";
3080 else if (strcmp (user_name, ".data") == 0)
3081 real_name = ".data[RW]";
3082 else
3083 {
3084 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3085 *input_line_pointer = c;
3086 ignore_rest_of_line ();
3087 return;
3088 }
3089
3090 *input_line_pointer = c;
3091
3092 sym = symbol_find_or_make (real_name);
3093
3094 ppc_change_csect (sym);
3095
3096 demand_empty_rest_of_line ();
3097}
3098
3099/* The .extern pseudo-op. We create an undefined symbol. */
3100
3101static void
3102ppc_extern (ignore)
5480ccf3 3103 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3104{
3105 char *name;
3106 char endc;
3107
3108 name = input_line_pointer;
3109 endc = get_symbol_end ();
3110
3111 (void) symbol_find_or_make (name);
3112
3113 *input_line_pointer = endc;
3114
3115 demand_empty_rest_of_line ();
3116}
3117
3118/* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3119
3120static void
3121ppc_lglobl (ignore)
5480ccf3 3122 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3123{
3124 char *name;
3125 char endc;
3126 symbolS *sym;
3127
3128 name = input_line_pointer;
3129 endc = get_symbol_end ();
3130
3131 sym = symbol_find_or_make (name);
3132
3133 *input_line_pointer = endc;
3134
809ffe0d 3135 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3136
3137 demand_empty_rest_of_line ();
3138}
3139
3140/* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3141 although I don't know why it bothers. */
3142
3143static void
3144ppc_rename (ignore)
5480ccf3 3145 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3146{
3147 char *name;
3148 char endc;
3149 symbolS *sym;
3150 int len;
3151
3152 name = input_line_pointer;
3153 endc = get_symbol_end ();
3154
3155 sym = symbol_find_or_make (name);
3156
3157 *input_line_pointer = endc;
3158
3159 if (*input_line_pointer != ',')
3160 {
3161 as_bad (_("missing rename string"));
3162 ignore_rest_of_line ();
3163 return;
3164 }
3165 ++input_line_pointer;
3166
809ffe0d 3167 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
252b5132
RH		 3168
3169 demand_empty_rest_of_line ();
3170}
3171
3172/* The .stabx pseudo-op. This is similar to a normal .stabs
3173 pseudo-op, but slightly different. A sample is
3174 .stabx "main:F-1",.main,142,0
3175 The first argument is the symbol name to create. The second is the
3176 value, and the third is the storage class. The fourth seems to be
3177 always zero, and I am assuming it is the type. */
3178
3179static void
3180ppc_stabx (ignore)
5480ccf3 3181 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3182{
3183 char *name;
3184 int len;
3185 symbolS *sym;
3186 expressionS exp;
3187
3188 name = demand_copy_C_string (&len);
3189
3190 if (*input_line_pointer != ',')
3191 {
3192 as_bad (_("missing value"));
3193 return;
3194 }
3195 ++input_line_pointer;
3196
3197 ppc_stab_symbol = true;
3198 sym = symbol_make (name);
3199 ppc_stab_symbol = false;
3200
809ffe0d 3201 symbol_get_tc (sym)->real_name = name;
252b5132
RH		 3202
3203 (void) expression (&exp);
3204
3205 switch (exp.X_op)
3206 {
3207 case O_illegal:
3208 case O_absent:
3209 case O_big:
3210 as_bad (_("illegal .stabx expression; zero assumed"));
3211 exp.X_add_number = 0;
3212 /* Fall through. */
3213 case O_constant:
3214 S_SET_VALUE (sym, (valueT) exp.X_add_number);
809ffe0d 3215 symbol_set_frag (sym, &zero_address_frag);
252b5132
RH		 3216 break;
3217
3218 case O_symbol:
3219 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
809ffe0d 3220 symbol_set_value_expression (sym, &exp);
252b5132
RH		 3221 else
3222 {
3223 S_SET_VALUE (sym,
3224 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
809ffe0d 3225 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
252b5132
RH		 3226 }
3227 break;
3228
3229 default:
3230 /* The value is some complex expression. This will probably
99a814a1
AM		 3231 fail at some later point, but this is probably the right
3232 thing to do here. */
809ffe0d 3233 symbol_set_value_expression (sym, &exp);
252b5132
RH		 3234 break;
3235 }
3236
3237 S_SET_SEGMENT (sym, ppc_coff_debug_section);
809ffe0d 3238 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
252b5132
RH		 3239
3240 if (*input_line_pointer != ',')
3241 {
3242 as_bad (_("missing class"));
3243 return;
3244 }
3245 ++input_line_pointer;
3246
3247 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
3248
3249 if (*input_line_pointer != ',')
3250 {
3251 as_bad (_("missing type"));
3252 return;
3253 }
3254 ++input_line_pointer;
3255
3256 S_SET_DATA_TYPE (sym, get_absolute_expression ());
3257
809ffe0d 3258 symbol_get_tc (sym)->output = 1;
252b5132 3259
6877bb43 3260 if (S_GET_STORAGE_CLASS (sym) == C_STSYM) {
99a814a1 3261
809ffe0d 3262 symbol_get_tc (sym)->within = ppc_current_block;
252b5132 3263
41ea10b1 3264 /* In this case :
99a814a1 3265
41ea10b1
TR		 3266 .bs name
3267 .stabx "z",arrays_,133,0
3268 .es
99a814a1 3269
41ea10b1 3270 .comm arrays_,13768,3
99a814a1 3271
41ea10b1
TR		 3272 resolve_symbol_value will copy the exp's "within" into sym's when the
3273 offset is 0. Since this seems to be corner case problem,
3274 only do the correction for storage class C_STSYM. A better solution
0baf16f2 3275 would be to have the tc field updated in ppc_symbol_new_hook. */
99a814a1
AM		 3276
3277 if (exp.X_op == O_symbol)
41ea10b1
TR		 3278 {
3279 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
3280 }
6877bb43 3281 }
99a814a1 3282
252b5132
RH		 3283 if (exp.X_op != O_symbol
3284 || ! S_IS_EXTERNAL (exp.X_add_symbol)
3285 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
3286 ppc_frob_label (sym);
3287 else
3288 {
3289 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3290 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
809ffe0d
ILT		 3291 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
3292 symbol_get_tc (ppc_current_csect)->within = sym;
252b5132
RH		 3293 }
3294
3295 demand_empty_rest_of_line ();
3296}
3297
3298/* The .function pseudo-op. This takes several arguments. The first
3299 argument seems to be the external name of the symbol. The second
3300 argment seems to be the label for the start of the function. gcc
3301 uses the same name for both. I have no idea what the third and
3302 fourth arguments are meant to be. The optional fifth argument is
3303 an expression for the size of the function. In COFF this symbol
3304 gets an aux entry like that used for a csect. */
3305
3306static void
3307ppc_function (ignore)
5480ccf3 3308 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3309{
3310 char *name;
3311 char endc;
3312 char *s;
3313 symbolS *ext_sym;
3314 symbolS *lab_sym;
3315
3316 name = input_line_pointer;
3317 endc = get_symbol_end ();
3318
3319 /* Ignore any [PR] suffix. */
3320 name = ppc_canonicalize_symbol_name (name);
3321 s = strchr (name, '[');
3322 if (s != (char *) NULL
3323 && strcmp (s + 1, "PR]") == 0)
3324 *s = '\0';
3325
3326 ext_sym = symbol_find_or_make (name);
3327
3328 *input_line_pointer = endc;
3329
3330 if (*input_line_pointer != ',')
3331 {
3332 as_bad (_("missing symbol name"));
3333 ignore_rest_of_line ();
3334 return;
3335 }
3336 ++input_line_pointer;
3337
3338 name = input_line_pointer;
3339 endc = get_symbol_end ();
3340
3341 lab_sym = symbol_find_or_make (name);
3342
3343 *input_line_pointer = endc;
3344
3345 if (ext_sym != lab_sym)
3346 {
809ffe0d
ILT		 3347 expressionS exp;
3348
3349 exp.X_op = O_symbol;
3350 exp.X_add_symbol = lab_sym;
3351 exp.X_op_symbol = NULL;
3352 exp.X_add_number = 0;
3353 exp.X_unsigned = 0;
3354 symbol_set_value_expression (ext_sym, &exp);
252b5132
RH		 3355 }
3356
809ffe0d
ILT		 3357 if (symbol_get_tc (ext_sym)->class == -1)
3358 symbol_get_tc (ext_sym)->class = XMC_PR;
3359 symbol_get_tc (ext_sym)->output = 1;
252b5132
RH		 3360
3361 if (*input_line_pointer == ',')
3362 {
3363 expressionS ignore;
3364
3365 /* Ignore the third argument. */
3366 ++input_line_pointer;
3367 expression (&ignore);
3368 if (*input_line_pointer == ',')
3369 {
3370 /* Ignore the fourth argument. */
3371 ++input_line_pointer;
3372 expression (&ignore);
3373 if (*input_line_pointer == ',')
3374 {
3375 /* The fifth argument is the function size. */
3376 ++input_line_pointer;
809ffe0d
ILT		 3377 symbol_get_tc (ext_sym)->size = symbol_new ("L0\001",
3378 absolute_section,
3379 (valueT) 0,
3380 &zero_address_frag);
3381 pseudo_set (symbol_get_tc (ext_sym)->size);
252b5132
RH		 3382 }
3383 }
3384 }
3385
3386 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
3387 SF_SET_FUNCTION (ext_sym);
3388 SF_SET_PROCESS (ext_sym);
3389 coff_add_linesym (ext_sym);
3390
3391 demand_empty_rest_of_line ();
3392}
3393
3394/* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
8642cce8
TR		 3395 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3396 with the correct line number */
5d6255fe 3397
8642cce8 3398static symbolS *saved_bi_sym = 0;
252b5132
RH		 3399
3400static void
3401ppc_bf (ignore)
5480ccf3 3402 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3403{
3404 symbolS *sym;
3405
3406 sym = symbol_make (".bf");
3407 S_SET_SEGMENT (sym, text_section);
809ffe0d 3408 symbol_set_frag (sym, frag_now);
252b5132
RH		 3409 S_SET_VALUE (sym, frag_now_fix ());
3410 S_SET_STORAGE_CLASS (sym, C_FCN);
3411
3412 coff_line_base = get_absolute_expression ();
3413
3414 S_SET_NUMBER_AUXILIARY (sym, 1);
3415 SA_SET_SYM_LNNO (sym, coff_line_base);
3416
8642cce8 3417 /* Line number for bi. */
5d6255fe 3418 if (saved_bi_sym)
8642cce8
TR		 3419 {
3420 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
3421 saved_bi_sym = 0;
3422 }
5d6255fe 3423
8642cce8 3424
809ffe0d 3425 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3426
3427 ppc_frob_label (sym);
3428
3429 demand_empty_rest_of_line ();
3430}
3431
3432/* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3433 ".ef", except that the line number is absolute, not relative to the
3434 most recent ".bf" symbol. */
3435
3436static void
3437ppc_ef (ignore)
5480ccf3 3438 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3439{
3440 symbolS *sym;
3441
3442 sym = symbol_make (".ef");
3443 S_SET_SEGMENT (sym, text_section);
809ffe0d 3444 symbol_set_frag (sym, frag_now);
252b5132
RH		 3445 S_SET_VALUE (sym, frag_now_fix ());
3446 S_SET_STORAGE_CLASS (sym, C_FCN);
3447 S_SET_NUMBER_AUXILIARY (sym, 1);
3448 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
809ffe0d 3449 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3450
3451 ppc_frob_label (sym);
3452
3453 demand_empty_rest_of_line ();
3454}
3455
3456/* The .bi and .ei pseudo-ops. These take a string argument and
3457 generates a C_BINCL or C_EINCL symbol, which goes at the start of
8642cce8
TR		 3458 the symbol list. The value of .bi will be know when the next .bf
3459 is encountered. */
252b5132
RH		 3460
3461static void
3462ppc_biei (ei)
3463 int ei;
3464{
3465 static symbolS *last_biei;
3466
3467 char *name;
3468 int len;
3469 symbolS *sym;
3470 symbolS *look;
3471
3472 name = demand_copy_C_string (&len);
3473
3474 /* The value of these symbols is actually file offset. Here we set
3475 the value to the index into the line number entries. In
3476 ppc_frob_symbols we set the fix_line field, which will cause BFD
3477 to do the right thing. */
3478
3479 sym = symbol_make (name);
3480 /* obj-coff.c currently only handles line numbers correctly in the
3481 .text section. */
3482 S_SET_SEGMENT (sym, text_section);
3483 S_SET_VALUE (sym, coff_n_line_nos);
809ffe0d 3484 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
252b5132
RH		 3485
3486 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
809ffe0d 3487 symbol_get_tc (sym)->output = 1;
81d4177b 3488
8642cce8 3489 /* Save bi. */
5d6255fe 3490 if (ei)
8642cce8
TR		 3491 saved_bi_sym = 0;
3492 else
3493 saved_bi_sym = sym;
3494
252b5132
RH		 3495 for (look = last_biei ? last_biei : symbol_rootP;
3496 (look != (symbolS *) NULL
3497 && (S_GET_STORAGE_CLASS (look) == C_FILE
3498 || S_GET_STORAGE_CLASS (look) == C_BINCL
3499 || S_GET_STORAGE_CLASS (look) == C_EINCL));
3500 look = symbol_next (look))
3501 ;
3502 if (look != (symbolS *) NULL)
3503 {
3504 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3505 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
3506 last_biei = sym;
3507 }
3508
3509 demand_empty_rest_of_line ();
3510}
3511
3512/* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3513 There is one argument, which is a csect symbol. The value of the
3514 .bs symbol is the index of this csect symbol. */
3515
3516static void
3517ppc_bs (ignore)
5480ccf3 3518 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3519{
3520 char *name;
3521 char endc;
3522 symbolS *csect;
3523 symbolS *sym;
3524
3525 if (ppc_current_block != NULL)
3526 as_bad (_("nested .bs blocks"));
3527
3528 name = input_line_pointer;
3529 endc = get_symbol_end ();
3530
3531 csect = symbol_find_or_make (name);
3532
3533 *input_line_pointer = endc;
3534
3535 sym = symbol_make (".bs");
3536 S_SET_SEGMENT (sym, now_seg);
3537 S_SET_STORAGE_CLASS (sym, C_BSTAT);
809ffe0d
ILT		 3538 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3539 symbol_get_tc (sym)->output = 1;
252b5132 3540
809ffe0d 3541 symbol_get_tc (sym)->within = csect;
252b5132
RH		 3542
3543 ppc_frob_label (sym);
3544
3545 ppc_current_block = sym;
3546
3547 demand_empty_rest_of_line ();
3548}
3549
3550/* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3551
3552static void
3553ppc_es (ignore)
5480ccf3 3554 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3555{
3556 symbolS *sym;
3557
3558 if (ppc_current_block == NULL)
3559 as_bad (_(".es without preceding .bs"));
3560
3561 sym = symbol_make (".es");
3562 S_SET_SEGMENT (sym, now_seg);
3563 S_SET_STORAGE_CLASS (sym, C_ESTAT);
809ffe0d
ILT		 3564 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3565 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3566
3567 ppc_frob_label (sym);
3568
3569 ppc_current_block = NULL;
3570
3571 demand_empty_rest_of_line ();
3572}
3573
3574/* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3575 line number. */
3576
3577static void
3578ppc_bb (ignore)
5480ccf3 3579 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3580{
3581 symbolS *sym;
3582
3583 sym = symbol_make (".bb");
3584 S_SET_SEGMENT (sym, text_section);
809ffe0d 3585 symbol_set_frag (sym, frag_now);
252b5132
RH		 3586 S_SET_VALUE (sym, frag_now_fix ());
3587 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3588
3589 S_SET_NUMBER_AUXILIARY (sym, 1);
3590 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3591
809ffe0d 3592 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3593
3594 SF_SET_PROCESS (sym);
3595
3596 ppc_frob_label (sym);
3597
3598 demand_empty_rest_of_line ();
3599}
3600
3601/* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3602 line number. */
3603
3604static void
3605ppc_eb (ignore)
5480ccf3 3606 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3607{
3608 symbolS *sym;
3609
3610 sym = symbol_make (".eb");
3611 S_SET_SEGMENT (sym, text_section);
809ffe0d 3612 symbol_set_frag (sym, frag_now);
252b5132
RH		 3613 S_SET_VALUE (sym, frag_now_fix ());
3614 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3615 S_SET_NUMBER_AUXILIARY (sym, 1);
3616 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
809ffe0d 3617 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3618
3619 SF_SET_PROCESS (sym);
3620
3621 ppc_frob_label (sym);
3622
3623 demand_empty_rest_of_line ();
3624}
3625
3626/* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3627 specified name. */
3628
3629static void
3630ppc_bc (ignore)
5480ccf3 3631 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3632{
3633 char *name;
3634 int len;
3635 symbolS *sym;
3636
3637 name = demand_copy_C_string (&len);
3638 sym = symbol_make (name);
3639 S_SET_SEGMENT (sym, ppc_coff_debug_section);
809ffe0d 3640 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
252b5132
RH		 3641 S_SET_STORAGE_CLASS (sym, C_BCOMM);
3642 S_SET_VALUE (sym, 0);
809ffe0d 3643 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3644
3645 ppc_frob_label (sym);
3646
3647 demand_empty_rest_of_line ();
3648}
3649
3650/* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3651
3652static void
3653ppc_ec (ignore)
5480ccf3 3654 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3655{
3656 symbolS *sym;
3657
3658 sym = symbol_make (".ec");
3659 S_SET_SEGMENT (sym, ppc_coff_debug_section);
809ffe0d 3660 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
252b5132
RH		 3661 S_SET_STORAGE_CLASS (sym, C_ECOMM);
3662 S_SET_VALUE (sym, 0);
809ffe0d 3663 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3664
3665 ppc_frob_label (sym);
3666
3667 demand_empty_rest_of_line ();
3668}
3669
3670/* The .toc pseudo-op. Switch to the .toc subsegment. */
3671
3672static void
3673ppc_toc (ignore)
5480ccf3 3674 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3675{
3676 if (ppc_toc_csect != (symbolS *) NULL)
809ffe0d 3677 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
252b5132
RH		 3678 else
3679 {
3680 subsegT subseg;
3681 symbolS *sym;
3682 symbolS *list;
81d4177b 3683
252b5132
RH		 3684 subseg = ppc_data_subsegment;
3685 ++ppc_data_subsegment;
3686
3687 subseg_new (segment_name (data_section), subseg);
3688 ppc_toc_frag = frag_now;
3689
3690 sym = symbol_find_or_make ("TOC[TC0]");
809ffe0d 3691 symbol_set_frag (sym, frag_now);
252b5132
RH		 3692 S_SET_SEGMENT (sym, data_section);
3693 S_SET_VALUE (sym, (valueT) frag_now_fix ());
809ffe0d
ILT		 3694 symbol_get_tc (sym)->subseg = subseg;
3695 symbol_get_tc (sym)->output = 1;
3696 symbol_get_tc (sym)->within = sym;
252b5132
RH		 3697
3698 ppc_toc_csect = sym;
81d4177b 3699
252b5132 3700 for (list = ppc_data_csects;
809ffe0d
ILT		 3701 symbol_get_tc (list)->next != (symbolS *) NULL;
3702 list = symbol_get_tc (list)->next)
252b5132 3703 ;
809ffe0d 3704 symbol_get_tc (list)->next = sym;
252b5132
RH		 3705
3706 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
809ffe0d
ILT		 3707 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3708 &symbol_lastP);
252b5132
RH		 3709 }
3710
3711 ppc_current_csect = ppc_toc_csect;
3712
3713 demand_empty_rest_of_line ();
3714}
3715
3716/* The AIX assembler automatically aligns the operands of a .long or
3717 .short pseudo-op, and we want to be compatible. */
3718
3719static void
3720ppc_xcoff_cons (log_size)
3721 int log_size;
3722{
3723 frag_align (log_size, 0, 0);
3724 record_alignment (now_seg, log_size);
3725 cons (1 << log_size);
3726}
3727
3728static void
3729ppc_vbyte (dummy)
5480ccf3 3730 int dummy ATTRIBUTE_UNUSED;
252b5132
RH		 3731{
3732 expressionS exp;
3733 int byte_count;
3734
3735 (void) expression (&exp);
3736
3737 if (exp.X_op != O_constant)
3738 {
3739 as_bad (_("non-constant byte count"));
3740 return;
3741 }
3742
3743 byte_count = exp.X_add_number;
3744
3745 if (*input_line_pointer != ',')
3746 {
3747 as_bad (_("missing value"));
3748 return;
3749 }
3750
3751 ++input_line_pointer;
3752 cons (byte_count);
3753}
3754
3755#endif /* OBJ_XCOFF */
0baf16f2 3756#if defined (OBJ_XCOFF) || defined (OBJ_ELF)
252b5132
RH		 3757\f
3758/* The .tc pseudo-op. This is used when generating either XCOFF or
3759 ELF. This takes two or more arguments.
3760
3761 When generating XCOFF output, the first argument is the name to
3762 give to this location in the toc; this will be a symbol with class
0baf16f2 3763 TC. The rest of the arguments are N-byte values to actually put at
252b5132 3764 this location in the TOC; often there is just one more argument, a
0baf16f2
AM		 3765 relocateable symbol reference. The size of the value to store
3766 depends on target word size. A 32-bit target uses 4-byte values, a
3767 64-bit target uses 8-byte values.
252b5132
RH		 3768
3769 When not generating XCOFF output, the arguments are the same, but
3770 the first argument is simply ignored. */
3771
3772static void
3773ppc_tc (ignore)
92161534 3774 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3775{
3776#ifdef OBJ_XCOFF
3777
3778 /* Define the TOC symbol name. */
3779 {
3780 char *name;
3781 char endc;
3782 symbolS *sym;
3783
3784 if (ppc_toc_csect == (symbolS *) NULL
3785 || ppc_toc_csect != ppc_current_csect)
3786 {
3787 as_bad (_(".tc not in .toc section"));
3788 ignore_rest_of_line ();
3789 return;
3790 }
3791
3792 name = input_line_pointer;
3793 endc = get_symbol_end ();
3794
3795 sym = symbol_find_or_make (name);
3796
3797 *input_line_pointer = endc;
3798
3799 if (S_IS_DEFINED (sym))
3800 {
3801 symbolS *label;
3802
809ffe0d
ILT		 3803 label = symbol_get_tc (ppc_current_csect)->within;
3804 if (symbol_get_tc (label)->class != XMC_TC0)
252b5132
RH		 3805 {
3806 as_bad (_(".tc with no label"));
3807 ignore_rest_of_line ();
3808 return;
3809 }
3810
3811 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
809ffe0d 3812 symbol_set_frag (label, symbol_get_frag (sym));
252b5132
RH		 3813 S_SET_VALUE (label, S_GET_VALUE (sym));
3814
3815 while (! is_end_of_line[(unsigned char) *input_line_pointer])
3816 ++input_line_pointer;
3817
3818 return;
3819 }
3820
3821 S_SET_SEGMENT (sym, now_seg);
809ffe0d 3822 symbol_set_frag (sym, frag_now);
252b5132 3823 S_SET_VALUE (sym, (valueT) frag_now_fix ());
809ffe0d
ILT		 3824 symbol_get_tc (sym)->class = XMC_TC;
3825 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3826
3827 ppc_frob_label (sym);
3828 }
3829
0baf16f2
AM		 3830#endif /* OBJ_XCOFF */
3831#ifdef OBJ_ELF
9c7977b3 3832 int align;
252b5132
RH		 3833
3834 /* Skip the TOC symbol name. */
3835 while (is_part_of_name (*input_line_pointer)
3836 || *input_line_pointer == '['
3837 || *input_line_pointer == ']'
3838 || *input_line_pointer == '{'
3839 || *input_line_pointer == '}')
3840 ++input_line_pointer;
3841
0baf16f2 3842 /* Align to a four/eight byte boundary. */
2b3c4602 3843 align = ppc_obj64 ? 3 : 2;
9c7977b3
AM		 3844 frag_align (align, 0, 0);
3845 record_alignment (now_seg, align);
0baf16f2 3846#endif /* OBJ_ELF */
252b5132
RH		 3847
3848 if (*input_line_pointer != ',')
3849 demand_empty_rest_of_line ();
3850 else
3851 {
3852 ++input_line_pointer;
2b3c4602 3853 cons (ppc_obj64 ? 8 : 4);
252b5132
RH		 3854 }
3855}
0baf16f2
AM		 3856
3857/* Pseudo-op .machine. */
15c1449b 3858/* FIXME: `.machine' is a nop for the moment. It would be nice to
2b3c4602 3859 accept this directive on the first line of input and set ppc_obj64
15c1449b
AM		 3860 and the target format accordingly. Unfortunately, the target
3861 format is selected in output-file.c:output_file_create before we
3862 even get to md_begin, so it's not possible without changing
3863 as.c:main. */
0baf16f2
AM		 3864
3865static void
3866ppc_machine (ignore)
3867 int ignore ATTRIBUTE_UNUSED;
3868{
3869 discard_rest_of_line ();
3870}
3871
3872/* See whether a symbol is in the TOC section. */
3873
3874static int
3875ppc_is_toc_sym (sym)
3876 symbolS *sym;
3877{
3878#ifdef OBJ_XCOFF
3879 return symbol_get_tc (sym)->class == XMC_TC;
3880#endif
3881#ifdef OBJ_ELF
3882 const char *sname = segment_name (S_GET_SEGMENT (sym));
2b3c4602 3883 if (ppc_obj64)
0baf16f2
AM		 3884 return strcmp (sname, ".toc") == 0;
3885 else
3886 return strcmp (sname, ".got") == 0;
3887#endif
3888}
3889#endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
252b5132
RH		 3890\f
3891#ifdef TE_PE
3892
99a814a1 3893/* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
252b5132
RH		 3894
3895/* Set the current section. */
3896static void
3897ppc_set_current_section (new)
3898 segT new;
3899{
3900 ppc_previous_section = ppc_current_section;
3901 ppc_current_section = new;
3902}
3903
3904/* pseudo-op: .previous
3905 behaviour: toggles the current section with the previous section.
3906 errors: None
99a814a1
AM		 3907 warnings: "No previous section" */
3908
252b5132 3909static void
99a814a1 3910ppc_previous (ignore)
5480ccf3 3911 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3912{
3913 symbolS *tmp;
3914
81d4177b 3915 if (ppc_previous_section == NULL)
252b5132 3916 {
99a814a1 3917 as_warn (_("No previous section to return to. Directive ignored."));
252b5132
RH		 3918 return;
3919 }
3920
99a814a1 3921 subseg_set (ppc_previous_section, 0);
252b5132 3922
99a814a1 3923 ppc_set_current_section (ppc_previous_section);
252b5132
RH		 3924}
3925
3926/* pseudo-op: .pdata
3927 behaviour: predefined read only data section
3928 double word aligned
3929 errors: None
3930 warnings: None
3931 initial: .section .pdata "adr3"
3932 a - don't know -- maybe a misprint
3933 d - initialized data
3934 r - readable
3935 3 - double word aligned (that would be 4 byte boundary)
3936
3937 commentary:
3938 Tag index tables (also known as the function table) for exception
99a814a1 3939 handling, debugging, etc. */
252b5132 3940
252b5132 3941static void
99a814a1 3942ppc_pdata (ignore)
5480ccf3 3943 int ignore ATTRIBUTE_UNUSED;
252b5132 3944{
81d4177b 3945 if (pdata_section == 0)
252b5132
RH		 3946 {
3947 pdata_section = subseg_new (".pdata", 0);
81d4177b 3948
252b5132
RH		 3949 bfd_set_section_flags (stdoutput, pdata_section,
3950 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
3951 | SEC_READONLY | SEC_DATA ));
81d4177b 3952
252b5132
RH		 3953 bfd_set_section_alignment (stdoutput, pdata_section, 2);
3954 }
3955 else
3956 {
99a814a1 3957 pdata_section = subseg_new (".pdata", 0);
252b5132 3958 }
99a814a1 3959 ppc_set_current_section (pdata_section);
252b5132
RH		 3960}
3961
3962/* pseudo-op: .ydata
3963 behaviour: predefined read only data section
3964 double word aligned
3965 errors: None
3966 warnings: None
3967 initial: .section .ydata "drw3"
3968 a - don't know -- maybe a misprint
3969 d - initialized data
3970 r - readable
3971 3 - double word aligned (that would be 4 byte boundary)
3972 commentary:
3973 Tag tables (also known as the scope table) for exception handling,
99a814a1
AM		 3974 debugging, etc. */
3975
252b5132 3976static void
99a814a1 3977ppc_ydata (ignore)
5480ccf3 3978 int ignore ATTRIBUTE_UNUSED;
252b5132 3979{
81d4177b 3980 if (ydata_section == 0)
252b5132
RH		 3981 {
3982 ydata_section = subseg_new (".ydata", 0);
3983 bfd_set_section_flags (stdoutput, ydata_section,
99a814a1
AM		 3984 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
3985 | SEC_READONLY | SEC_DATA ));
252b5132
RH		 3986
3987 bfd_set_section_alignment (stdoutput, ydata_section, 3);
3988 }
3989 else
3990 {
3991 ydata_section = subseg_new (".ydata", 0);
3992 }
99a814a1 3993 ppc_set_current_section (ydata_section);
252b5132
RH		 3994}
3995
3996/* pseudo-op: .reldata
3997 behaviour: predefined read write data section
3998 double word aligned (4-byte)
3999 FIXME: relocation is applied to it
4000 FIXME: what's the difference between this and .data?
4001 errors: None
4002 warnings: None
4003 initial: .section .reldata "drw3"
4004 d - initialized data
4005 r - readable
4006 w - writeable
4007 3 - double word aligned (that would be 8 byte boundary)
4008
4009 commentary:
4010 Like .data, but intended to hold data subject to relocation, such as
99a814a1
AM		 4011 function descriptors, etc. */
4012
252b5132 4013static void
99a814a1 4014ppc_reldata (ignore)
5480ccf3 4015 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 4016{
4017 if (reldata_section == 0)
4018 {
4019 reldata_section = subseg_new (".reldata", 0);
4020
4021 bfd_set_section_flags (stdoutput, reldata_section,
99a814a1
AM		 4022 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4023 | SEC_DATA));
252b5132
RH		 4024
4025 bfd_set_section_alignment (stdoutput, reldata_section, 2);
4026 }
4027 else
4028 {
4029 reldata_section = subseg_new (".reldata", 0);
4030 }
99a814a1 4031 ppc_set_current_section (reldata_section);
252b5132
RH		 4032}
4033
4034/* pseudo-op: .rdata
4035 behaviour: predefined read only data section
4036 double word aligned
4037 errors: None
4038 warnings: None
4039 initial: .section .rdata "dr3"
4040 d - initialized data
4041 r - readable
99a814a1
AM		 4042 3 - double word aligned (that would be 4 byte boundary) */
4043
252b5132 4044static void
99a814a1 4045ppc_rdata (ignore)
5480ccf3 4046 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 4047{
4048 if (rdata_section == 0)
4049 {
4050 rdata_section = subseg_new (".rdata", 0);
4051 bfd_set_section_flags (stdoutput, rdata_section,
4052 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4053 | SEC_READONLY | SEC_DATA ));
4054
4055 bfd_set_section_alignment (stdoutput, rdata_section, 2);
4056 }
4057 else
4058 {
4059 rdata_section = subseg_new (".rdata", 0);
4060 }
99a814a1 4061 ppc_set_current_section (rdata_section);
252b5132
RH		 4062}
4063
4064/* pseudo-op: .ualong
81d4177b 4065 behaviour: much like .int, with the exception that no alignment is
252b5132
RH		 4066 performed.
4067 FIXME: test the alignment statement
4068 errors: None
99a814a1
AM		 4069 warnings: None */
4070
252b5132 4071static void
99a814a1 4072ppc_ualong (ignore)
5480ccf3 4073 int ignore ATTRIBUTE_UNUSED;
252b5132 4074{
99a814a1
AM		 4075 /* Try for long. */
4076 cons (4);
252b5132
RH		 4077}
4078
4079/* pseudo-op: .znop <symbol name>
4080 behaviour: Issue a nop instruction
4081 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4082 the supplied symbol name.
4083 errors: None
99a814a1
AM		 4084 warnings: Missing symbol name */
4085
252b5132 4086static void
99a814a1 4087ppc_znop (ignore)
5480ccf3 4088 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 4089{
4090 unsigned long insn;
4091 const struct powerpc_opcode *opcode;
4092 expressionS ex;
4093 char *f;
252b5132 4094 symbolS *sym;
252b5132
RH		 4095 char *symbol_name;
4096 char c;
4097 char *name;
4098 unsigned int exp;
4099 flagword flags;
4100 asection *sec;
4101
99a814a1 4102 /* Strip out the symbol name. */
252b5132
RH		 4103 symbol_name = input_line_pointer;
4104 c = get_symbol_end ();
4105
4106 name = xmalloc (input_line_pointer - symbol_name + 1);
4107 strcpy (name, symbol_name);
4108
4109 sym = symbol_find_or_make (name);
4110
4111 *input_line_pointer = c;
4112
4113 SKIP_WHITESPACE ();
4114
4115 /* Look up the opcode in the hash table. */
4116 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
4117
99a814a1 4118 /* Stick in the nop. */
252b5132
RH		 4119 insn = opcode->opcode;
4120
4121 /* Write out the instruction. */
4122 f = frag_more (4);
4123 md_number_to_chars (f, insn, 4);
4124 fix_new (frag_now,
4125 f - frag_now->fr_literal,
4126 4,
4127 sym,
4128 0,
4129 0,
4130 BFD_RELOC_16_GOT_PCREL);
4131
4132}
4133
81d4177b
KH		 4134/* pseudo-op:
4135 behaviour:
4136 errors:
99a814a1
AM		 4137 warnings: */
4138
252b5132 4139static void
99a814a1 4140ppc_pe_comm (lcomm)
252b5132
RH		 4141 int lcomm;
4142{
4143 register char *name;
4144 register char c;
4145 register char *p;
4146 offsetT temp;
4147 register symbolS *symbolP;
4148 offsetT align;
4149
4150 name = input_line_pointer;
4151 c = get_symbol_end ();
4152
99a814a1 4153 /* just after name is now '\0'. */
252b5132
RH		 4154 p = input_line_pointer;
4155 *p = c;
4156 SKIP_WHITESPACE ();
4157 if (*input_line_pointer != ',')
4158 {
4159 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4160 ignore_rest_of_line ();
4161 return;
4162 }
4163
4164 input_line_pointer++; /* skip ',' */
4165 if ((temp = get_absolute_expression ()) < 0)
4166 {
4167 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
4168 ignore_rest_of_line ();
4169 return;
4170 }
4171
4172 if (! lcomm)
4173 {
4174 /* The third argument to .comm is the alignment. */
4175 if (*input_line_pointer != ',')
4176 align = 3;
4177 else
4178 {
4179 ++input_line_pointer;
4180 align = get_absolute_expression ();
4181 if (align <= 0)
4182 {
4183 as_warn (_("ignoring bad alignment"));
4184 align = 3;
4185 }
4186 }
4187 }
4188
4189 *p = 0;
4190 symbolP = symbol_find_or_make (name);
4191
4192 *p = c;
4193 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
4194 {
4195 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4196 S_GET_NAME (symbolP));
4197 ignore_rest_of_line ();
4198 return;
4199 }
4200
4201 if (S_GET_VALUE (symbolP))
4202 {
4203 if (S_GET_VALUE (symbolP) != (valueT) temp)
4204 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4205 S_GET_NAME (symbolP),
4206 (long) S_GET_VALUE (symbolP),
4207 (long) temp);
4208 }
4209 else
4210 {
4211 S_SET_VALUE (symbolP, (valueT) temp);
4212 S_SET_EXTERNAL (symbolP);
4213 }
4214
4215 demand_empty_rest_of_line ();
4216}
4217
4218/*
4219 * implement the .section pseudo op:
4220 * .section name {, "flags"}
4221 * ^ ^
4222 * | +--- optional flags: 'b' for bss
4223 * | 'i' for info
4224 * +-- section name 'l' for lib
4225 * 'n' for noload
4226 * 'o' for over
4227 * 'w' for data
4228 * 'd' (apparently m88k for data)
4229 * 'x' for text
4230 * But if the argument is not a quoted string, treat it as a
4231 * subsegment number.
4232 *
4233 * FIXME: this is a copy of the section processing from obj-coff.c, with
4234 * additions/changes for the moto-pas assembler support. There are three
4235 * categories:
4236 *
81d4177b 4237 * FIXME: I just noticed this. This doesn't work at all really. It it
252b5132
RH		 4238 * setting bits that bfd probably neither understands or uses. The
4239 * correct approach (?) will have to incorporate extra fields attached
4240 * to the section to hold the system specific stuff. (krk)
4241 *
4242 * Section Contents:
4243 * 'a' - unknown - referred to in documentation, but no definition supplied
4244 * 'c' - section has code
4245 * 'd' - section has initialized data
4246 * 'u' - section has uninitialized data
4247 * 'i' - section contains directives (info)
4248 * 'n' - section can be discarded
4249 * 'R' - remove section at link time
4250 *
4251 * Section Protection:
4252 * 'r' - section is readable
4253 * 'w' - section is writeable
4254 * 'x' - section is executable
4255 * 's' - section is sharable
4256 *
4257 * Section Alignment:
4258 * '0' - align to byte boundary
4259 * '1' - align to halfword undary
4260 * '2' - align to word boundary
4261 * '3' - align to doubleword boundary
4262 * '4' - align to quadword boundary
4263 * '5' - align to 32 byte boundary
4264 * '6' - align to 64 byte boundary
4265 *
4266 */
4267
4268void
4269ppc_pe_section (ignore)
5480ccf3 4270 int ignore ATTRIBUTE_UNUSED;
252b5132 4271{
99a814a1 4272 /* Strip out the section name. */
252b5132
RH		 4273 char *section_name;
4274 char c;
4275 char *name;
4276 unsigned int exp;
4277 flagword flags;
4278 segT sec;
4279 int align;
4280
4281 section_name = input_line_pointer;
4282 c = get_symbol_end ();
4283
4284 name = xmalloc (input_line_pointer - section_name + 1);
4285 strcpy (name, section_name);
4286
4287 *input_line_pointer = c;
4288
4289 SKIP_WHITESPACE ();
4290
4291 exp = 0;
4292 flags = SEC_NO_FLAGS;
4293
4294 if (strcmp (name, ".idata$2") == 0)
4295 {
4296 align = 0;
4297 }
4298 else if (strcmp (name, ".idata$3") == 0)
4299 {
4300 align = 0;
4301 }
4302 else if (strcmp (name, ".idata$4") == 0)
4303 {
4304 align = 2;
4305 }
4306 else if (strcmp (name, ".idata$5") == 0)
4307 {
4308 align = 2;
4309 }
4310 else if (strcmp (name, ".idata$6") == 0)
4311 {
4312 align = 1;
4313 }
4314 else
99a814a1
AM		 4315 /* Default alignment to 16 byte boundary. */
4316 align = 4;
252b5132
RH		 4317
4318 if (*input_line_pointer == ',')
4319 {
4320 ++input_line_pointer;
4321 SKIP_WHITESPACE ();
4322 if (*input_line_pointer != '"')
4323 exp = get_absolute_expression ();
4324 else
4325 {
4326 ++input_line_pointer;
4327 while (*input_line_pointer != '"'
4328 && ! is_end_of_line[(unsigned char) *input_line_pointer])
4329 {
4330 switch (*input_line_pointer)
4331 {
4332 /* Section Contents */
4333 case 'a': /* unknown */
4334 as_bad (_("Unsupported section attribute -- 'a'"));
4335 break;
4336 case 'c': /* code section */
81d4177b 4337 flags |= SEC_CODE;
252b5132
RH		 4338 break;
4339 case 'd': /* section has initialized data */
4340 flags |= SEC_DATA;
4341 break;
4342 case 'u': /* section has uninitialized data */
4343 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4344 in winnt.h */
4345 flags |= SEC_ROM;
4346 break;
4347 case 'i': /* section contains directives (info) */
4348 /* FIXME: This is IMAGE_SCN_LNK_INFO
4349 in winnt.h */
4350 flags |= SEC_HAS_CONTENTS;
4351 break;
4352 case 'n': /* section can be discarded */
81d4177b 4353 flags &=~ SEC_LOAD;
252b5132
RH		 4354 break;
4355 case 'R': /* Remove section at link time */
4356 flags |= SEC_NEVER_LOAD;
4357 break;
4358
4359 /* Section Protection */
4360 case 'r': /* section is readable */
4361 flags |= IMAGE_SCN_MEM_READ;
4362 break;
4363 case 'w': /* section is writeable */
4364 flags |= IMAGE_SCN_MEM_WRITE;
4365 break;
4366 case 'x': /* section is executable */
4367 flags |= IMAGE_SCN_MEM_EXECUTE;
4368 break;
4369 case 's': /* section is sharable */
4370 flags |= IMAGE_SCN_MEM_SHARED;
4371 break;
4372
4373 /* Section Alignment */
4374 case '0': /* align to byte boundary */
4375 flags |= IMAGE_SCN_ALIGN_1BYTES;
4376 align = 0;
4377 break;
4378 case '1': /* align to halfword boundary */
4379 flags |= IMAGE_SCN_ALIGN_2BYTES;
4380 align = 1;
4381 break;
4382 case '2': /* align to word boundary */
4383 flags |= IMAGE_SCN_ALIGN_4BYTES;
4384 align = 2;
4385 break;
4386 case '3': /* align to doubleword boundary */
4387 flags |= IMAGE_SCN_ALIGN_8BYTES;
4388 align = 3;
4389 break;
4390 case '4': /* align to quadword boundary */
4391 flags |= IMAGE_SCN_ALIGN_16BYTES;
4392 align = 4;
4393 break;
4394 case '5': /* align to 32 byte boundary */
4395 flags |= IMAGE_SCN_ALIGN_32BYTES;
4396 align = 5;
4397 break;
4398 case '6': /* align to 64 byte boundary */
4399 flags |= IMAGE_SCN_ALIGN_64BYTES;
4400 align = 6;
4401 break;
4402
4403 default:
99a814a1
AM		 4404 as_bad (_("unknown section attribute '%c'"),
4405 *input_line_pointer);
252b5132
RH		 4406 break;
4407 }
4408 ++input_line_pointer;
4409 }
4410 if (*input_line_pointer == '"')
4411 ++input_line_pointer;
4412 }
4413 }
4414
4415 sec = subseg_new (name, (subsegT) exp);
4416
99a814a1 4417 ppc_set_current_section (sec);
252b5132
RH		 4418
4419 if (flags != SEC_NO_FLAGS)
4420 {
4421 if (! bfd_set_section_flags (stdoutput, sec, flags))
4422 as_bad (_("error setting flags for \"%s\": %s"),
4423 bfd_section_name (stdoutput, sec),
4424 bfd_errmsg (bfd_get_error ()));
4425 }
4426
99a814a1 4427 bfd_set_section_alignment (stdoutput, sec, align);
252b5132
RH		 4428
4429}
4430
4431static void
4432ppc_pe_function (ignore)
5480ccf3 4433 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 4434{
4435 char *name;
4436 char endc;
4437 symbolS *ext_sym;
4438
4439 name = input_line_pointer;
4440 endc = get_symbol_end ();
4441
4442 ext_sym = symbol_find_or_make (name);
4443
4444 *input_line_pointer = endc;
4445
4446 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4447 SF_SET_FUNCTION (ext_sym);
4448 SF_SET_PROCESS (ext_sym);
4449 coff_add_linesym (ext_sym);
4450
4451 demand_empty_rest_of_line ();
4452}
4453
4454static void
4455ppc_pe_tocd (ignore)
5480ccf3 4456 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 4457{
4458 if (tocdata_section == 0)
4459 {
4460 tocdata_section = subseg_new (".tocd", 0);
99a814a1 4461 /* FIXME: section flags won't work. */
252b5132
RH		 4462 bfd_set_section_flags (stdoutput, tocdata_section,
4463 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
99a814a1 4464 | SEC_READONLY | SEC_DATA));
252b5132
RH		 4465
4466 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
4467 }
4468 else
4469 {
4470 rdata_section = subseg_new (".tocd", 0);
4471 }
4472
99a814a1 4473 ppc_set_current_section (tocdata_section);
252b5132
RH		 4474
4475 demand_empty_rest_of_line ();
4476}
4477
4478/* Don't adjust TOC relocs to use the section symbol. */
4479
4480int
4481ppc_pe_fix_adjustable (fix)
4482 fixS *fix;
4483{
4484 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
4485}
4486
4487#endif
4488\f
4489#ifdef OBJ_XCOFF
4490
4491/* XCOFF specific symbol and file handling. */
4492
4493/* Canonicalize the symbol name. We use the to force the suffix, if
4494 any, to use square brackets, and to be in upper case. */
4495
4496char *
4497ppc_canonicalize_symbol_name (name)
4498 char *name;
4499{
4500 char *s;
4501
4502 if (ppc_stab_symbol)
4503 return name;
4504
4505 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
4506 ;
4507 if (*s != '\0')
4508 {
4509 char brac;
4510
4511 if (*s == '[')
4512 brac = ']';
4513 else
4514 {
4515 *s = '[';
4516 brac = '}';
4517 }
4518
4519 for (s++; *s != '\0' && *s != brac; s++)
3882b010 4520 *s = TOUPPER (*s);
252b5132
RH		 4521
4522 if (*s == '\0' || s[1] != '\0')
4523 as_bad (_("bad symbol suffix"));
4524
4525 *s = ']';
4526 }
4527
4528 return name;
4529}
4530
4531/* Set the class of a symbol based on the suffix, if any. This is
4532 called whenever a new symbol is created. */
4533
4534void
4535ppc_symbol_new_hook (sym)
4536 symbolS *sym;
4537{
809ffe0d 4538 struct ppc_tc_sy *tc;
252b5132
RH		 4539 const char *s;
4540
809ffe0d
ILT		 4541 tc = symbol_get_tc (sym);
4542 tc->next = NULL;
4543 tc->output = 0;
4544 tc->class = -1;
4545 tc->real_name = NULL;
4546 tc->subseg = 0;
4547 tc->align = 0;
4548 tc->size = NULL;
4549 tc->within = NULL;
252b5132
RH		 4550
4551 if (ppc_stab_symbol)
4552 return;
4553
4554 s = strchr (S_GET_NAME (sym), '[');
4555 if (s == (const char *) NULL)
4556 {
4557 /* There is no suffix. */
4558 return;
4559 }
4560
4561 ++s;
4562
4563 switch (s[0])
4564 {
4565 case 'B':
4566 if (strcmp (s, "BS]") == 0)
809ffe0d 4567 tc->class = XMC_BS;
252b5132
RH		 4568 break;
4569 case 'D':
4570 if (strcmp (s, "DB]") == 0)
809ffe0d 4571 tc->class = XMC_DB;
252b5132 4572 else if (strcmp (s, "DS]") == 0)
809ffe0d 4573 tc->class = XMC_DS;
252b5132
RH		 4574 break;
4575 case 'G':
4576 if (strcmp (s, "GL]") == 0)
809ffe0d 4577 tc->class = XMC_GL;
252b5132
RH		 4578 break;
4579 case 'P':
4580 if (strcmp (s, "PR]") == 0)
809ffe0d 4581 tc->class = XMC_PR;
252b5132
RH		 4582 break;
4583 case 'R':
4584 if (strcmp (s, "RO]") == 0)
809ffe0d 4585 tc->class = XMC_RO;
252b5132 4586 else if (strcmp (s, "RW]") == 0)
809ffe0d 4587 tc->class = XMC_RW;
252b5132
RH		 4588 break;
4589 case 'S':
4590 if (strcmp (s, "SV]") == 0)
809ffe0d 4591 tc->class = XMC_SV;
252b5132
RH		 4592 break;
4593 case 'T':
4594 if (strcmp (s, "TC]") == 0)
809ffe0d 4595 tc->class = XMC_TC;
252b5132 4596 else if (strcmp (s, "TI]") == 0)
809ffe0d 4597 tc->class = XMC_TI;
252b5132 4598 else if (strcmp (s, "TB]") == 0)
809ffe0d 4599 tc->class = XMC_TB;
252b5132 4600 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
809ffe0d 4601 tc->class = XMC_TC0;
252b5132
RH		 4602 break;
4603 case 'U':
4604 if (strcmp (s, "UA]") == 0)
809ffe0d 4605 tc->class = XMC_UA;
252b5132 4606 else if (strcmp (s, "UC]") == 0)
809ffe0d 4607 tc->class = XMC_UC;
252b5132
RH		 4608 break;
4609 case 'X':
4610 if (strcmp (s, "XO]") == 0)
809ffe0d 4611 tc->class = XMC_XO;
252b5132
RH		 4612 break;
4613 }
4614
809ffe0d 4615 if (tc->class == -1)
252b5132
RH		 4616 as_bad (_("Unrecognized symbol suffix"));
4617}
4618
4619/* Set the class of a label based on where it is defined. This
4620 handles symbols without suffixes. Also, move the symbol so that it
4621 follows the csect symbol. */
4622
4623void
4624ppc_frob_label (sym)
4625 symbolS *sym;
4626{
4627 if (ppc_current_csect != (symbolS *) NULL)
4628 {
809ffe0d
ILT		 4629 if (symbol_get_tc (sym)->class == -1)
4630 symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class;
252b5132
RH		 4631
4632 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
809ffe0d
ILT		 4633 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
4634 &symbol_rootP, &symbol_lastP);
4635 symbol_get_tc (ppc_current_csect)->within = sym;
252b5132
RH		 4636 }
4637}
4638
4639/* This variable is set by ppc_frob_symbol if any absolute symbols are
4640 seen. It tells ppc_adjust_symtab whether it needs to look through
4641 the symbols. */
4642
4643static boolean ppc_saw_abs;
4644
4645/* Change the name of a symbol just before writing it out. Set the
4646 real name if the .rename pseudo-op was used. Otherwise, remove any
4647 class suffix. Return 1 if the symbol should not be included in the
4648 symbol table. */
4649
4650int
4651ppc_frob_symbol (sym)
4652 symbolS *sym;
4653{
4654 static symbolS *ppc_last_function;
4655 static symbolS *set_end;
4656
4657 /* Discard symbols that should not be included in the output symbol
4658 table. */
809ffe0d
ILT		 4659 if (! symbol_used_in_reloc_p (sym)
4660 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
252b5132 4661 || (! S_IS_EXTERNAL (sym)
809ffe0d 4662 && ! symbol_get_tc (sym)->output
252b5132
RH		 4663 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
4664 return 1;
4665
809ffe0d
ILT		 4666 if (symbol_get_tc (sym)->real_name != (char *) NULL)
4667 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
252b5132
RH		 4668 else
4669 {
4670 const char *name;
4671 const char *s;
4672
4673 name = S_GET_NAME (sym);
4674 s = strchr (name, '[');
4675 if (s != (char *) NULL)
4676 {
4677 unsigned int len;
4678 char *snew;
4679
4680 len = s - name;
4681 snew = xmalloc (len + 1);
4682 memcpy (snew, name, len);
4683 snew[len] = '\0';
4684
4685 S_SET_NAME (sym, snew);
4686 }
4687 }
4688
4689 if (set_end != (symbolS *) NULL)
4690 {
4691 SA_SET_SYM_ENDNDX (set_end, sym);
4692 set_end = NULL;
4693 }
4694
4695 if (SF_GET_FUNCTION (sym))
4696 {
4697 if (ppc_last_function != (symbolS *) NULL)
4698 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4699 ppc_last_function = sym;
809ffe0d 4700 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
252b5132 4701 {
6386f3a7 4702 resolve_symbol_value (symbol_get_tc (sym)->size);
809ffe0d
ILT		 4703 SA_SET_SYM_FSIZE (sym,
4704 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
252b5132
RH		 4705 }
4706 }
4707 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
4708 && strcmp (S_GET_NAME (sym), ".ef") == 0)
4709 {
4710 if (ppc_last_function == (symbolS *) NULL)
4711 as_bad (_(".ef with no preceding .function"));
4712 else
4713 {
4714 set_end = ppc_last_function;
4715 ppc_last_function = NULL;
4716
4717 /* We don't have a C_EFCN symbol, but we need to force the
4718 COFF backend to believe that it has seen one. */
4719 coff_last_function = NULL;
4720 }
4721 }
4722
4723 if (! S_IS_EXTERNAL (sym)
809ffe0d 4724 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
252b5132
RH		 4725 && S_GET_STORAGE_CLASS (sym) != C_FILE
4726 && S_GET_STORAGE_CLASS (sym) != C_FCN
4727 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
4728 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
4729 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
4730 && S_GET_STORAGE_CLASS (sym) != C_BINCL
4731 && S_GET_STORAGE_CLASS (sym) != C_EINCL
4732 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
4733 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
4734
4735 if (S_GET_STORAGE_CLASS (sym) == C_EXT
4736 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
4737 {
4738 int i;
4739 union internal_auxent *a;
4740
4741 /* Create a csect aux. */
4742 i = S_GET_NUMBER_AUXILIARY (sym);
4743 S_SET_NUMBER_AUXILIARY (sym, i + 1);
809ffe0d
ILT		 4744 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
4745 if (symbol_get_tc (sym)->class == XMC_TC0)
252b5132
RH		 4746 {
4747 /* This is the TOC table. */
4748 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
4749 a->x_csect.x_scnlen.l = 0;
4750 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
4751 }
809ffe0d 4752 else if (symbol_get_tc (sym)->subseg != 0)
252b5132
RH		 4753 {
4754 /* This is a csect symbol. x_scnlen is the size of the
4755 csect. */
809ffe0d 4756 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
252b5132
RH		 4757 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
4758 S_GET_SEGMENT (sym))
4759 - S_GET_VALUE (sym));
4760 else
4761 {
6386f3a7 4762 resolve_symbol_value (symbol_get_tc (sym)->next);
809ffe0d 4763 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
252b5132
RH		 4764 - S_GET_VALUE (sym));
4765 }
809ffe0d 4766 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
252b5132
RH		 4767 }
4768 else if (S_GET_SEGMENT (sym) == bss_section)
4769 {
4770 /* This is a common symbol. */
809ffe0d
ILT		 4771 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
4772 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
252b5132 4773 if (S_IS_EXTERNAL (sym))
809ffe0d 4774 symbol_get_tc (sym)->class = XMC_RW;
252b5132 4775 else
809ffe0d 4776 symbol_get_tc (sym)->class = XMC_BS;
252b5132
RH		 4777 }
4778 else if (S_GET_SEGMENT (sym) == absolute_section)
4779 {
4780 /* This is an absolute symbol. The csect will be created by
99a814a1 4781 ppc_adjust_symtab. */
252b5132
RH		 4782 ppc_saw_abs = true;
4783 a->x_csect.x_smtyp = XTY_LD;
809ffe0d
ILT		 4784 if (symbol_get_tc (sym)->class == -1)
4785 symbol_get_tc (sym)->class = XMC_XO;
252b5132
RH		 4786 }
4787 else if (! S_IS_DEFINED (sym))
4788 {
4789 /* This is an external symbol. */
4790 a->x_csect.x_scnlen.l = 0;
4791 a->x_csect.x_smtyp = XTY_ER;
4792 }
809ffe0d 4793 else if (symbol_get_tc (sym)->class == XMC_TC)
252b5132
RH		 4794 {
4795 symbolS *next;
4796
4797 /* This is a TOC definition. x_scnlen is the size of the
4798 TOC entry. */
4799 next = symbol_next (sym);
809ffe0d 4800 while (symbol_get_tc (next)->class == XMC_TC0)
252b5132
RH		 4801 next = symbol_next (next);
4802 if (next == (symbolS *) NULL
809ffe0d 4803 || symbol_get_tc (next)->class != XMC_TC)
252b5132
RH		 4804 {
4805 if (ppc_after_toc_frag == (fragS *) NULL)
4806 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
4807 data_section)
4808 - S_GET_VALUE (sym));
4809 else
4810 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
4811 - S_GET_VALUE (sym));
4812 }
4813 else
4814 {
6386f3a7 4815 resolve_symbol_value (next);
252b5132
RH		 4816 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
4817 - S_GET_VALUE (sym));
4818 }
4819 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
4820 }
4821 else
4822 {
4823 symbolS *csect;
4824
4825 /* This is a normal symbol definition. x_scnlen is the
4826 symbol index of the containing csect. */
4827 if (S_GET_SEGMENT (sym) == text_section)
4828 csect = ppc_text_csects;
4829 else if (S_GET_SEGMENT (sym) == data_section)
4830 csect = ppc_data_csects;
4831 else
4832 abort ();
4833
4834 /* Skip the initial dummy symbol. */
809ffe0d 4835 csect = symbol_get_tc (csect)->next;
252b5132
RH		 4836
4837 if (csect == (symbolS *) NULL)
4838 {
4839 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
4840 a->x_csect.x_scnlen.l = 0;
4841 }
4842 else
4843 {
809ffe0d 4844 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
252b5132 4845 {
6386f3a7 4846 resolve_symbol_value (symbol_get_tc (csect)->next);
809ffe0d
ILT		 4847 if (S_GET_VALUE (symbol_get_tc (csect)->next)
4848 > S_GET_VALUE (sym))
252b5132 4849 break;
809ffe0d 4850 csect = symbol_get_tc (csect)->next;
252b5132
RH		 4851 }
4852
809ffe0d
ILT		 4853 a->x_csect.x_scnlen.p =
4854 coffsymbol (symbol_get_bfdsym (csect))->native;
4855 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
4856 1;
252b5132
RH		 4857 }
4858 a->x_csect.x_smtyp = XTY_LD;
4859 }
81d4177b 4860
252b5132
RH		 4861 a->x_csect.x_parmhash = 0;
4862 a->x_csect.x_snhash = 0;
809ffe0d 4863 if (symbol_get_tc (sym)->class == -1)
252b5132
RH		 4864 a->x_csect.x_smclas = XMC_PR;
4865 else
809ffe0d 4866 a->x_csect.x_smclas = symbol_get_tc (sym)->class;
252b5132
RH		 4867 a->x_csect.x_stab = 0;
4868 a->x_csect.x_snstab = 0;
4869
4870 /* Don't let the COFF backend resort these symbols. */
809ffe0d 4871 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
252b5132
RH		 4872 }
4873 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
4874 {
4875 /* We want the value to be the symbol index of the referenced
4876 csect symbol. BFD will do that for us if we set the right
4877 flags. */
b782de16
AM		 4878 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
4879 combined_entry_type *c = coffsymbol (bsym)->native;
4880
4881 S_SET_VALUE (sym, (valueT) (size_t) c);
809ffe0d 4882 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
252b5132
RH		 4883 }
4884 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
4885 {
4886 symbolS *block;
4887 symbolS *csect;
4888
4889 /* The value is the offset from the enclosing csect. */
809ffe0d
ILT		 4890 block = symbol_get_tc (sym)->within;
4891 csect = symbol_get_tc (block)->within;
6386f3a7 4892 resolve_symbol_value (csect);
252b5132
RH		 4893 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
4894 }
4895 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
4896 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
4897 {
4898 /* We want the value to be a file offset into the line numbers.
99a814a1
AM		 4899 BFD will do that for us if we set the right flags. We have
4900 already set the value correctly. */
809ffe0d 4901 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
252b5132
RH		 4902 }
4903
4904 return 0;
4905}
4906
4907/* Adjust the symbol table. This creates csect symbols for all
4908 absolute symbols. */
4909
4910void
4911ppc_adjust_symtab ()
4912{
4913 symbolS *sym;
4914
4915 if (! ppc_saw_abs)
4916 return;
4917
4918 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
4919 {
4920 symbolS *csect;
4921 int i;
4922 union internal_auxent *a;
4923
4924 if (S_GET_SEGMENT (sym) != absolute_section)
4925 continue;
4926
4927 csect = symbol_create (".abs[XO]", absolute_section,
4928 S_GET_VALUE (sym), &zero_address_frag);
809ffe0d 4929 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
252b5132
RH		 4930 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
4931 i = S_GET_NUMBER_AUXILIARY (csect);
4932 S_SET_NUMBER_AUXILIARY (csect, i + 1);
809ffe0d 4933 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
252b5132
RH		 4934 a->x_csect.x_scnlen.l = 0;
4935 a->x_csect.x_smtyp = XTY_SD;
4936 a->x_csect.x_parmhash = 0;
4937 a->x_csect.x_snhash = 0;
4938 a->x_csect.x_smclas = XMC_XO;
4939 a->x_csect.x_stab = 0;
4940 a->x_csect.x_snstab = 0;
4941
4942 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
4943
4944 i = S_GET_NUMBER_AUXILIARY (sym);
809ffe0d
ILT		 4945 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
4946 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
4947 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
252b5132
RH		 4948 }
4949
4950 ppc_saw_abs = false;
4951}
4952
4953/* Set the VMA for a section. This is called on all the sections in
4954 turn. */
4955
4956void
4957ppc_frob_section (sec)
4958 asection *sec;
4959{
4960 static bfd_size_type vma = 0;
4961
4962 bfd_set_section_vma (stdoutput, sec, vma);
4963 vma += bfd_section_size (stdoutput, sec);
4964}
4965
4966#endif /* OBJ_XCOFF */
4967\f
4968/* Turn a string in input_line_pointer into a floating point constant
bc0d738a
NC		 4969 of type TYPE, and store the appropriate bytes in *LITP. The number
4970 of LITTLENUMS emitted is stored in *SIZEP. An error message is
252b5132
RH		 4971 returned, or NULL on OK. */
4972
4973char *
4974md_atof (type, litp, sizep)
4975 int type;
4976 char *litp;
4977 int *sizep;
4978{
4979 int prec;
4980 LITTLENUM_TYPE words[4];
4981 char *t;
4982 int i;
4983
4984 switch (type)
4985 {
4986 case 'f':
4987 prec = 2;
4988 break;
4989
4990 case 'd':
4991 prec = 4;
4992 break;
4993
4994 default:
4995 *sizep = 0;
4996 return _("bad call to md_atof");
4997 }
4998
4999 t = atof_ieee (input_line_pointer, type, words);
5000 if (t)
5001 input_line_pointer = t;
5002
5003 *sizep = prec * 2;
5004
5005 if (target_big_endian)
5006 {
5007 for (i = 0; i < prec; i++)
5008 {
5009 md_number_to_chars (litp, (valueT) words[i], 2);
5010 litp += 2;
5011 }
5012 }
5013 else
5014 {
5015 for (i = prec - 1; i >= 0; i--)
5016 {
5017 md_number_to_chars (litp, (valueT) words[i], 2);
5018 litp += 2;
5019 }
5020 }
81d4177b 5021
252b5132
RH		 5022 return NULL;
5023}
5024
5025/* Write a value out to the object file, using the appropriate
5026 endianness. */
5027
5028void
5029md_number_to_chars (buf, val, n)
5030 char *buf;
5031 valueT val;
5032 int n;
5033{
5034 if (target_big_endian)
5035 number_to_chars_bigendian (buf, val, n);
5036 else
5037 number_to_chars_littleendian (buf, val, n);
5038}
5039
5040/* Align a section (I don't know why this is machine dependent). */
5041
5042valueT
5043md_section_align (seg, addr)
5044 asection *seg;
5045 valueT addr;
5046{
5047 int align = bfd_get_section_alignment (stdoutput, seg);
5048
5049 return ((addr + (1 << align) - 1) & (-1 << align));
5050}
5051
5052/* We don't have any form of relaxing. */
5053
5054int
5055md_estimate_size_before_relax (fragp, seg)
92161534
ILT		 5056 fragS *fragp ATTRIBUTE_UNUSED;
5057 asection *seg ATTRIBUTE_UNUSED;
252b5132
RH		 5058{
5059 abort ();
5060 return 0;
5061}
5062
5063/* Convert a machine dependent frag. We never generate these. */
5064
5065void
5066md_convert_frag (abfd, sec, fragp)
92161534
ILT		 5067 bfd *abfd ATTRIBUTE_UNUSED;
5068 asection *sec ATTRIBUTE_UNUSED;
5069 fragS *fragp ATTRIBUTE_UNUSED;
252b5132
RH		 5070{
5071 abort ();
5072}
5073
5074/* We have no need to default values of symbols. */
5075
252b5132
RH		 5076symbolS *
5077md_undefined_symbol (name)
92161534 5078 char *name ATTRIBUTE_UNUSED;
252b5132
RH		 5079{
5080 return 0;
5081}
5082\f
5083/* Functions concerning relocs. */
5084
5085/* The location from which a PC relative jump should be calculated,
5086 given a PC relative reloc. */
5087
5088long
5089md_pcrel_from_section (fixp, sec)
5090 fixS *fixp;
92161534 5091 segT sec ATTRIBUTE_UNUSED;
252b5132
RH		 5092{
5093 return fixp->fx_frag->fr_address + fixp->fx_where;
5094}
5095
5096#ifdef OBJ_XCOFF
5097
5098/* This is called to see whether a fixup should be adjusted to use a
5099 section symbol. We take the opportunity to change a fixup against
5100 a symbol in the TOC subsegment into a reloc against the
5101 corresponding .tc symbol. */
5102
5103int
5104ppc_fix_adjustable (fix)
5105 fixS *fix;
5106{
b782de16
AM		 5107 valueT val = resolve_symbol_value (fix->fx_addsy);
5108 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
5109 TC_SYMFIELD_TYPE *tc;
5110
5111 if (symseg == absolute_section)
5112 return 0;
252b5132 5113
252b5132 5114 if (ppc_toc_csect != (symbolS *) NULL
252b5132 5115 && fix->fx_addsy != ppc_toc_csect
b782de16 5116 && symseg == data_section
252b5132
RH		 5117 && val >= ppc_toc_frag->fr_address
5118 && (ppc_after_toc_frag == (fragS *) NULL
5119 || val < ppc_after_toc_frag->fr_address))
5120 {
5121 symbolS *sy;
5122
5123 for (sy = symbol_next (ppc_toc_csect);
5124 sy != (symbolS *) NULL;
5125 sy = symbol_next (sy))
5126 {
b782de16
AM		 5127 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
5128
5129 if (sy_tc->class == XMC_TC0)
252b5132 5130 continue;
b782de16 5131 if (sy_tc->class != XMC_TC)
252b5132 5132 break;
b782de16 5133 if (val == resolve_symbol_value (sy))
252b5132
RH		 5134 {
5135 fix->fx_addsy = sy;
5136 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
5137 return 0;
5138 }
5139 }
5140
5141 as_bad_where (fix->fx_file, fix->fx_line,
5142 _("symbol in .toc does not match any .tc"));
5143 }
5144
5145 /* Possibly adjust the reloc to be against the csect. */
b782de16
AM		 5146 tc = symbol_get_tc (fix->fx_addsy);
5147 if (tc->subseg == 0
5148 && tc->class != XMC_TC0
5149 && tc->class != XMC_TC
5150 && symseg != bss_section
252b5132 5151 /* Don't adjust if this is a reloc in the toc section. */
b782de16 5152 && (symseg != data_section
252b5132
RH		 5153 || ppc_toc_csect == NULL
5154 || val < ppc_toc_frag->fr_address
5155 || (ppc_after_toc_frag != NULL
5156 && val >= ppc_after_toc_frag->fr_address)))
5157 {
5158 symbolS *csect;
b782de16 5159 symbolS *next_csect;
252b5132 5160
b782de16 5161 if (symseg == text_section)
252b5132 5162 csect = ppc_text_csects;
b782de16 5163 else if (symseg == data_section)
252b5132
RH		 5164 csect = ppc_data_csects;
5165 else
5166 abort ();
5167
5168 /* Skip the initial dummy symbol. */
809ffe0d 5169 csect = symbol_get_tc (csect)->next;
252b5132
RH		 5170
5171 if (csect != (symbolS *) NULL)
5172 {
b782de16
AM		 5173 while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL
5174 && (symbol_get_frag (next_csect)->fr_address <= val))
252b5132
RH		 5175 {
5176 /* If the csect address equals the symbol value, then we
99a814a1
AM		 5177 have to look through the full symbol table to see
5178 whether this is the csect we want. Note that we will
5179 only get here if the csect has zero length. */
b782de16
AM		 5180 if (symbol_get_frag (csect)->fr_address == val
5181 && S_GET_VALUE (csect) == val)
252b5132
RH		 5182 {
5183 symbolS *scan;
5184
809ffe0d 5185 for (scan = symbol_next (csect);
252b5132 5186 scan != NULL;
809ffe0d 5187 scan = symbol_next (scan))
252b5132 5188 {
809ffe0d 5189 if (symbol_get_tc (scan)->subseg != 0)
252b5132
RH		 5190 break;
5191 if (scan == fix->fx_addsy)
5192 break;
5193 }
5194
5195 /* If we found the symbol before the next csect
99a814a1 5196 symbol, then this is the csect we want. */
252b5132
RH		 5197 if (scan == fix->fx_addsy)
5198 break;
5199 }
5200
b782de16 5201 csect = next_csect;
252b5132
RH		 5202 }
5203
b782de16 5204 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
252b5132
RH		 5205 fix->fx_addsy = csect;
5206 }
b782de16 5207 return 0;
252b5132
RH		 5208 }
5209
5210 /* Adjust a reloc against a .lcomm symbol to be against the base
5211 .lcomm. */
b782de16 5212 if (symseg == bss_section
252b5132
RH		 5213 && ! S_IS_EXTERNAL (fix->fx_addsy))
5214 {
b782de16
AM		 5215 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
5216
5217 fix->fx_offset += val - resolve_symbol_value (sy);
5218 fix->fx_addsy = sy;
252b5132
RH		 5219 }
5220
5221 return 0;
5222}
5223
5224/* A reloc from one csect to another must be kept. The assembler
5225 will, of course, keep relocs between sections, and it will keep
5226 absolute relocs, but we need to force it to keep PC relative relocs
5227 between two csects in the same section. */
5228
5229int
5230ppc_force_relocation (fix)
5231 fixS *fix;
5232{
5233 /* At this point fix->fx_addsy should already have been converted to
5234 a csect symbol. If the csect does not include the fragment, then
5235 we need to force the relocation. */
5236 if (fix->fx_pcrel
5237 && fix->fx_addsy != NULL
809ffe0d
ILT		 5238 && symbol_get_tc (fix->fx_addsy)->subseg != 0
5239 && ((symbol_get_frag (fix->fx_addsy)->fr_address
5240 > fix->fx_frag->fr_address)
5241 || (symbol_get_tc (fix->fx_addsy)->next != NULL
5242 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
252b5132
RH		 5243 <= fix->fx_frag->fr_address))))
5244 return 1;
5245
5246 return 0;
5247}
5248
5249#endif /* OBJ_XCOFF */
5250
0baf16f2
AM		 5251#ifdef OBJ_ELF
5252int
5253ppc_fix_adjustable (fix)
5254 fixS *fix;
252b5132 5255{
0baf16f2
AM		 5256 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
5257 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
5258 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
5259 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
5260 && fix->fx_r_type != BFD_RELOC_GPREL16
5261 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
5262 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
5263 && ! S_IS_EXTERNAL (fix->fx_addsy)
5264 && ! S_IS_WEAK (fix->fx_addsy)
5265 && (fix->fx_pcrel
5266 || (fix->fx_subsy != NULL
5267 && (S_GET_SEGMENT (fix->fx_subsy)
5268 == S_GET_SEGMENT (fix->fx_addsy)))
5269 || S_IS_LOCAL (fix->fx_addsy)));
252b5132 5270}
0baf16f2 5271#endif
252b5132
RH		 5272
5273/* Apply a fixup to the object code. This is called for all the
5274 fixups we generated by the call to fix_new_exp, above. In the call
5275 above we used a reloc code which was the largest legal reloc code
5276 plus the operand index. Here we undo that to recover the operand
5277 index. At this point all symbol values should be fully resolved,
5278 and we attempt to completely resolve the reloc. If we can not do
5279 that, we determine the correct reloc code and put it back in the
5280 fixup. */
5281
94f592af
NC		 5282void
5283md_apply_fix3 (fixP, valP, seg)
5284 fixS *fixP;
5285 valueT * valP;
0baf16f2 5286 segT seg ATTRIBUTE_UNUSED;
252b5132 5287{
94f592af 5288 valueT value = * valP;
252b5132
RH		 5289
5290#ifdef OBJ_ELF
94f592af 5291 if (fixP->fx_addsy != NULL)
252b5132
RH		 5292 {
5293 /* `*valuep' may contain the value of the symbol on which the reloc
5294 will be based; we have to remove it. */
94f592af
NC		 5295 if (symbol_used_in_reloc_p (fixP->fx_addsy)
5296 && S_GET_SEGMENT (fixP->fx_addsy) != absolute_section
5297 && S_GET_SEGMENT (fixP->fx_addsy) != undefined_section
5298 && ! bfd_is_com_section (S_GET_SEGMENT (fixP->fx_addsy)))
5299 value -= S_GET_VALUE (fixP->fx_addsy);
252b5132
RH		 5300
5301 /* FIXME: Why '+'? Better yet, what exactly is '*valuep'
5302 supposed to be? I think this is related to various similar
5303 FIXMEs in tc-i386.c and tc-sparc.c. */
94f592af
NC		 5304 if (fixP->fx_pcrel)
5305 value += fixP->fx_frag->fr_address + fixP->fx_where;
252b5132
RH		 5306 }
5307 else
94f592af 5308 fixP->fx_done = 1;
252b5132
RH		 5309#else
5310 /* FIXME FIXME FIXME: The value we are passed in *valuep includes
5311 the symbol values. Since we are using BFD_ASSEMBLER, if we are
5312 doing this relocation the code in write.c is going to call
5313 bfd_install_relocation, which is also going to use the symbol
5314 value. That means that if the reloc is fully resolved we want to
5315 use *valuep since bfd_install_relocation is not being used.
5316 However, if the reloc is not fully resolved we do not want to use
5317 *valuep, and must use fx_offset instead. However, if the reloc
5318 is PC relative, we do want to use *valuep since it includes the
5319 result of md_pcrel_from. This is confusing. */
94f592af
NC		 5320 if (fixP->fx_addsy == (symbolS *) NULL)
5321 fixP->fx_done = 1;
5322
5323 else if (fixP->fx_pcrel)
5324 ;
5325
252b5132
RH		 5326 else
5327 {
94f592af
NC		 5328 value = fixP->fx_offset;
5329 if (fixP->fx_subsy != (symbolS *) NULL)
252b5132 5330 {
94f592af
NC		 5331 if (S_GET_SEGMENT (fixP->fx_subsy) == absolute_section)
5332 value -= S_GET_VALUE (fixP->fx_subsy);
252b5132
RH		 5333 else
5334 {
5335 /* We can't actually support subtracting a symbol. */
94f592af 5336 as_bad_where (fixP->fx_file, fixP->fx_line,
252b5132
RH		 5337 _("expression too complex"));
5338 }
5339 }
5340 }
5341#endif
5342
94f592af 5343 if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
252b5132
RH		 5344 {
5345 int opindex;
5346 const struct powerpc_operand *operand;
5347 char *where;
5348 unsigned long insn;
5349
94f592af 5350 opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
252b5132
RH		 5351
5352 operand = &powerpc_operands[opindex];
5353
5354#ifdef OBJ_XCOFF
0baf16f2
AM		 5355 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5356 does not generate a reloc. It uses the offset of `sym' within its
5357 csect. Other usages, such as `.long sym', generate relocs. This
5358 is the documented behaviour of non-TOC symbols. */
252b5132
RH		 5359 if ((operand->flags & PPC_OPERAND_PARENS) != 0
5360 && operand->bits == 16
5361 && operand->shift == 0
2b3c4602 5362 && (operand->insert == NULL || ppc_obj64)
94f592af
NC		 5363 && fixP->fx_addsy != NULL
5364 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
5365 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC
5366 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC0
5367 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
252b5132 5368 {
94f592af
NC		 5369 value = fixP->fx_offset;
5370 fixP->fx_done = 1;
252b5132
RH		 5371 }
5372#endif
5373
5374 /* Fetch the instruction, insert the fully resolved operand
5375 value, and stuff the instruction back again. */
94f592af 5376 where = fixP->fx_frag->fr_literal + fixP->fx_where;
252b5132
RH		 5377 if (target_big_endian)
5378 insn = bfd_getb32 ((unsigned char *) where);
5379 else
5380 insn = bfd_getl32 ((unsigned char *) where);
5381 insn = ppc_insert_operand (insn, operand, (offsetT) value,
94f592af 5382 fixP->fx_file, fixP->fx_line);
252b5132
RH		 5383 if (target_big_endian)
5384 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5385 else
5386 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5387
94f592af
NC		 5388 if (fixP->fx_done)
5389 /* Nothing else to do here. */
5390 return;
252b5132 5391
94f592af 5392 assert (fixP->fx_addsy != NULL);
0baf16f2 5393
252b5132
RH		 5394 /* Determine a BFD reloc value based on the operand information.
5395 We are only prepared to turn a few of the operands into
0baf16f2 5396 relocs. */
11b37b7b
AM		 5397 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5398 && operand->bits == 26
5399 && operand->shift == 0)
94f592af 5400 fixP->fx_r_type = BFD_RELOC_PPC_B26;
11b37b7b
AM		 5401 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5402 && operand->bits == 16
5403 && operand->shift == 0)
95210096
AM		 5404 {
5405 fixP->fx_r_type = BFD_RELOC_PPC_B16;
5406#ifdef OBJ_XCOFF
5407 fixP->fx_size = 2;
5408 if (target_big_endian)
5409 fixP->fx_where += 2;
5410#endif
5411 }
11b37b7b
AM		 5412 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5413 && operand->bits == 26
5414 && operand->shift == 0)
94f592af 5415 fixP->fx_r_type = BFD_RELOC_PPC_BA26;
11b37b7b
AM		 5416 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5417 && operand->bits == 16
5418 && operand->shift == 0)
95210096
AM		 5419 {
5420 fixP->fx_r_type = BFD_RELOC_PPC_BA16;
5421#ifdef OBJ_XCOFF
5422 fixP->fx_size = 2;
5423 if (target_big_endian)
5424 fixP->fx_where += 2;
5425#endif
5426 }
0baf16f2 5427#if defined (OBJ_XCOFF) || defined (OBJ_ELF)
11b37b7b
AM		 5428 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
5429 && operand->bits == 16
5430 && operand->shift == 0
94f592af 5431 && ppc_is_toc_sym (fixP->fx_addsy))
11b37b7b 5432 {
94f592af 5433 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
0baf16f2 5434#ifdef OBJ_ELF
2b3c4602 5435 if (ppc_obj64
0baf16f2 5436 && (operand->flags & PPC_OPERAND_DS) != 0)
94f592af 5437 fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
0baf16f2 5438#endif
94f592af 5439 fixP->fx_size = 2;
11b37b7b 5440 if (target_big_endian)
94f592af 5441 fixP->fx_where += 2;
11b37b7b 5442 }
0baf16f2 5443#endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
11b37b7b 5444 else
252b5132
RH		 5445 {
5446 char *sfile;
5447 unsigned int sline;
5448
5449 /* Use expr_symbol_where to see if this is an expression
0baf16f2 5450 symbol. */
94f592af
NC		 5451 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
5452 as_bad_where (fixP->fx_file, fixP->fx_line,
252b5132
RH		 5453 _("unresolved expression that must be resolved"));
5454 else
94f592af 5455 as_bad_where (fixP->fx_file, fixP->fx_line,
0baf16f2 5456 _("unsupported relocation against %s"),
94f592af
NC		 5457 S_GET_NAME (fixP->fx_addsy));
5458 fixP->fx_done = 1;
5459 return;
252b5132
RH		 5460 }
5461 }
5462 else
5463 {
5464#ifdef OBJ_ELF
94f592af 5465 ppc_elf_validate_fix (fixP, seg);
252b5132 5466#endif
94f592af 5467 switch (fixP->fx_r_type)
252b5132 5468 {
252b5132 5469 case BFD_RELOC_CTOR:
2b3c4602 5470 if (ppc_obj64)
9c7977b3
AM		 5471 goto ctor64;
5472 /* fall through */
5473
0baf16f2 5474 case BFD_RELOC_32:
94f592af
NC		 5475 if (fixP->fx_pcrel)
5476 fixP->fx_r_type = BFD_RELOC_32_PCREL;
99a814a1 5477 /* fall through */
252b5132
RH		 5478
5479 case BFD_RELOC_RVA:
5480 case BFD_RELOC_32_PCREL:
252b5132 5481 case BFD_RELOC_PPC_EMB_NADDR32:
94f592af 5482 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
252b5132
RH		 5483 value, 4);
5484 break;
5485
7f6d05e8 5486 case BFD_RELOC_64:
9c7977b3 5487 ctor64:
94f592af
NC		 5488 if (fixP->fx_pcrel)
5489 fixP->fx_r_type = BFD_RELOC_64_PCREL;
99a814a1 5490 /* fall through */
0baf16f2 5491
7f6d05e8 5492 case BFD_RELOC_64_PCREL:
94f592af 5493 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
7f6d05e8 5494 value, 8);
81d4177b 5495 break;
0baf16f2 5496
252b5132
RH		 5497 case BFD_RELOC_LO16:
5498 case BFD_RELOC_16:
5499 case BFD_RELOC_GPREL16:
5500 case BFD_RELOC_16_GOT_PCREL:
5501 case BFD_RELOC_16_GOTOFF:
5502 case BFD_RELOC_LO16_GOTOFF:
5503 case BFD_RELOC_HI16_GOTOFF:
5504 case BFD_RELOC_HI16_S_GOTOFF:
1cfc59d5 5505 case BFD_RELOC_16_BASEREL:
252b5132
RH		 5506 case BFD_RELOC_LO16_BASEREL:
5507 case BFD_RELOC_HI16_BASEREL:
5508 case BFD_RELOC_HI16_S_BASEREL:
5509 case BFD_RELOC_PPC_EMB_NADDR16:
5510 case BFD_RELOC_PPC_EMB_NADDR16_LO:
5511 case BFD_RELOC_PPC_EMB_NADDR16_HI:
5512 case BFD_RELOC_PPC_EMB_NADDR16_HA:
5513 case BFD_RELOC_PPC_EMB_SDAI16:
5514 case BFD_RELOC_PPC_EMB_SDA2REL:
5515 case BFD_RELOC_PPC_EMB_SDA2I16:
5516 case BFD_RELOC_PPC_EMB_RELSEC16:
5517 case BFD_RELOC_PPC_EMB_RELST_LO:
5518 case BFD_RELOC_PPC_EMB_RELST_HI:
5519 case BFD_RELOC_PPC_EMB_RELST_HA:
5520 case BFD_RELOC_PPC_EMB_RELSDA:
5521 case BFD_RELOC_PPC_TOC16:
0baf16f2 5522#ifdef OBJ_ELF
0baf16f2
AM		 5523 case BFD_RELOC_PPC64_TOC16_LO:
5524 case BFD_RELOC_PPC64_TOC16_HI:
5525 case BFD_RELOC_PPC64_TOC16_HA:
0baf16f2 5526#endif
94f592af 5527 if (fixP->fx_pcrel)
252b5132 5528 {
94f592af
NC		 5529 if (fixP->fx_addsy != NULL)
5530 as_bad_where (fixP->fx_file, fixP->fx_line,
252b5132 5531 _("cannot emit PC relative %s relocation against %s"),
94f592af
NC		 5532 bfd_get_reloc_code_name (fixP->fx_r_type),
5533 S_GET_NAME (fixP->fx_addsy));
252b5132 5534 else
94f592af 5535 as_bad_where (fixP->fx_file, fixP->fx_line,
252b5132 5536 _("cannot emit PC relative %s relocation"),
94f592af 5537 bfd_get_reloc_code_name (fixP->fx_r_type));
252b5132
RH		 5538 }
5539
94f592af 5540 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
252b5132
RH		 5541 value, 2);
5542 break;
5543
5544 /* This case happens when you write, for example,
5545 lis %r3,(L1-L2)@ha
5546 where L1 and L2 are defined later. */
5547 case BFD_RELOC_HI16:
94f592af 5548 if (fixP->fx_pcrel)
252b5132 5549 abort ();
94f592af 5550 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
0baf16f2 5551 PPC_HI (value), 2);
252b5132 5552 break;
0baf16f2 5553
252b5132 5554 case BFD_RELOC_HI16_S:
94f592af 5555 if (fixP->fx_pcrel)
252b5132 5556 abort ();
94f592af 5557 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
0baf16f2
AM		 5558 PPC_HA (value), 2);
5559 break;
5560
5561#ifdef OBJ_ELF
0baf16f2 5562 case BFD_RELOC_PPC64_HIGHER:
94f592af 5563 if (fixP->fx_pcrel)
0baf16f2 5564 abort ();
94f592af 5565 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
0baf16f2 5566 PPC_HIGHER (value), 2);
252b5132
RH		 5567 break;
5568
0baf16f2 5569 case BFD_RELOC_PPC64_HIGHER_S:
94f592af 5570 if (fixP->fx_pcrel)
0baf16f2 5571 abort ();
94f592af 5572 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
0baf16f2
AM		 5573 PPC_HIGHERA (value), 2);
5574 break;
5575
5576 case BFD_RELOC_PPC64_HIGHEST:
94f592af 5577 if (fixP->fx_pcrel)
0baf16f2 5578 abort ();
94f592af 5579 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
0baf16f2
AM		 5580 PPC_HIGHEST (value), 2);
5581 break;
5582
5583 case BFD_RELOC_PPC64_HIGHEST_S:
94f592af 5584 if (fixP->fx_pcrel)
0baf16f2 5585 abort ();
94f592af 5586 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
0baf16f2
AM		 5587 PPC_HIGHESTA (value), 2);
5588 break;
5589
5590 case BFD_RELOC_PPC64_ADDR16_DS:
5591 case BFD_RELOC_PPC64_ADDR16_LO_DS:
5592 case BFD_RELOC_PPC64_GOT16_DS:
5593 case BFD_RELOC_PPC64_GOT16_LO_DS:
5594 case BFD_RELOC_PPC64_PLT16_LO_DS:
5595 case BFD_RELOC_PPC64_SECTOFF_DS:
5596 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
5597 case BFD_RELOC_PPC64_TOC16_DS:
5598 case BFD_RELOC_PPC64_TOC16_LO_DS:
5599 case BFD_RELOC_PPC64_PLTGOT16_DS:
5600 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
94f592af 5601 if (fixP->fx_pcrel)
0baf16f2
AM		 5602 abort ();
5603 {
94f592af 5604 unsigned char *where = fixP->fx_frag->fr_literal + fixP->fx_where;
0baf16f2
AM		 5605 unsigned long val;
5606
5607 if (target_big_endian)
5608 val = bfd_getb16 (where);
5609 else
5610 val = bfd_getl16 (where);
5611 val |= (value & 0xfffc);
5612 if (target_big_endian)
5613 bfd_putb16 ((bfd_vma) val, where);
5614 else
5615 bfd_putl16 ((bfd_vma) val, where);
5616 }
5617 break;
0baf16f2 5618#endif
252b5132 5619 /* Because SDA21 modifies the register field, the size is set to 4
99a814a1 5620 bytes, rather than 2, so offset it here appropriately. */
252b5132 5621 case BFD_RELOC_PPC_EMB_SDA21:
94f592af 5622 if (fixP->fx_pcrel)
252b5132
RH		 5623 abort ();
5624
94f592af 5625 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where
252b5132
RH		 5626 + ((target_big_endian) ? 2 : 0),
5627 value, 2);
5628 break;
5629
5630 case BFD_RELOC_8:
94f592af 5631 if (fixP->fx_pcrel)
252b5132
RH		 5632 abort ();
5633
94f592af 5634 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
252b5132
RH		 5635 value, 1);
5636 break;
5637
5638 case BFD_RELOC_24_PLT_PCREL:
5639 case BFD_RELOC_PPC_LOCAL24PC:
94f592af 5640 if (!fixP->fx_pcrel && !fixP->fx_done)
252b5132
RH		 5641 abort ();
5642
94f592af 5643 if (fixP->fx_done)
99a814a1
AM		 5644 {
5645 char *where;
5646 unsigned long insn;
5647
5648 /* Fetch the instruction, insert the fully resolved operand
5649 value, and stuff the instruction back again. */
94f592af 5650 where = fixP->fx_frag->fr_literal + fixP->fx_where;
99a814a1
AM		 5651 if (target_big_endian)
5652 insn = bfd_getb32 ((unsigned char *) where);
5653 else
5654 insn = bfd_getl32 ((unsigned char *) where);
5655 if ((value & 3) != 0)
94f592af 5656 as_bad_where (fixP->fx_file, fixP->fx_line,
99a814a1
AM		 5657 _("must branch to an address a multiple of 4"));
5658 if ((offsetT) value < -0x40000000
5659 || (offsetT) value >= 0x40000000)
94f592af 5660 as_bad_where (fixP->fx_file, fixP->fx_line,
99a814a1
AM		 5661 _("@local or @plt branch destination is too far away, %ld bytes"),
5662 (long) value);
5663 insn = insn | (value & 0x03fffffc);
5664 if (target_big_endian)
5665 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5666 else
5667 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5668 }
252b5132
RH		 5669 break;
5670
5671 case BFD_RELOC_VTABLE_INHERIT:
94f592af
NC		 5672 fixP->fx_done = 0;
5673 if (fixP->fx_addsy
5674 && !S_IS_DEFINED (fixP->fx_addsy)
5675 && !S_IS_WEAK (fixP->fx_addsy))
5676 S_SET_WEAK (fixP->fx_addsy);
252b5132
RH		 5677 break;
5678
5679 case BFD_RELOC_VTABLE_ENTRY:
94f592af 5680 fixP->fx_done = 0;
252b5132
RH		 5681 break;
5682
0baf16f2 5683#ifdef OBJ_ELF
0baf16f2
AM		 5684 /* Generated by reference to `sym@tocbase'. The sym is
5685 ignored by the linker. */
5686 case BFD_RELOC_PPC64_TOC:
94f592af 5687 fixP->fx_done = 0;
0baf16f2 5688 break;
0baf16f2 5689#endif
252b5132 5690 default:
bc805888 5691 fprintf (stderr,
94f592af 5692 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
99a814a1 5693 fflush (stderr);
252b5132
RH		 5694 abort ();
5695 }
5696 }
5697
5698#ifdef OBJ_ELF
94f592af 5699 fixP->fx_addnumber = value;
252b5132 5700#else
94f592af
NC		 5701 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
5702 fixP->fx_addnumber = 0;
252b5132
RH		 5703 else
5704 {
5705#ifdef TE_PE
94f592af 5706 fixP->fx_addnumber = 0;
252b5132
RH		 5707#else
5708 /* We want to use the offset within the data segment of the
5709 symbol, not the actual VMA of the symbol. */
94f592af
NC		 5710 fixP->fx_addnumber =
5711 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy));
252b5132
RH		 5712#endif
5713 }
5714#endif
252b5132
RH		 5715}
5716
5717/* Generate a reloc for a fixup. */
5718
5719arelent *
5720tc_gen_reloc (seg, fixp)
92161534 5721 asection *seg ATTRIBUTE_UNUSED;
252b5132
RH		 5722 fixS *fixp;
5723{
5724 arelent *reloc;
5725
5726 reloc = (arelent *) xmalloc (sizeof (arelent));
5727
49309057
ILT		 5728 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
5729 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 5730 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
5731 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
5732 if (reloc->howto == (reloc_howto_type *) NULL)
5733 {
5734 as_bad_where (fixp->fx_file, fixp->fx_line,
99a814a1
AM		 5735 _("reloc %d not supported by object file format"),
5736 (int) fixp->fx_r_type);
252b5132
RH		 5737 return NULL;
5738 }
5739 reloc->addend = fixp->fx_addnumber;
5740
5741 return reloc;
5742}
GDB Binutils - Deliverables
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