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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)
f7e42eb4 2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
2c1c4c62 3 Free Software Foundation, Inc.
252b5132
RH		 4 Written by Ian Lance Taylor, Cygnus Support.
5
6 This file is part of GAS, the GNU Assembler.
7
8 GAS is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
11 any later version.
12
13 GAS is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with GAS; see the file COPYING. If not, write to the Free
20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
81d4177b 21 02111-1307, USA. */
252b5132
RH		 22
23#include <stdio.h>
252b5132 24#include "as.h"
3882b010 25#include "safe-ctype.h"
252b5132
RH		 26#include "subsegs.h"
27
28#include "opcode/ppc.h"
29
30#ifdef OBJ_ELF
31#include "elf/ppc.h"
5d6f4f16 32#include "dwarf2dbg.h"
252b5132
RH		 33#endif
34
35#ifdef TE_PE
36#include "coff/pe.h"
37#endif
38
39/* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
40
41/* Tell the main code what the endianness is. */
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. */
68#define PPC_HA(v) ((((v) >> 16) + (((v) >> 15) & 1)) & 0xffff)
69
70/* #higher(value) denotes bits 32 through 47 of the indicated value. */
71#define PPC_HIGHER(v) (((v) >> 32) & 0xffff)
72
73/* #highera(value) denotes bits 32 through 47 of the indicated value,
74 compensating for #lo() being treated as a signed number. */
75#define PPC_HIGHERA(v) \
76 ((((v) >> 32) + (((v) & 0xffff8000) == 0xffff8000)) & 0xffff)
77
78/* #highest(value) denotes bits 48 through 63 of the indicated value. */
79#define PPC_HIGHEST(v) (((v) >> 48) & 0xffff)
80
81/* #highesta(value) denotes bits 48 through 63 of the indicated value,
82 compensating for #lo being treated as a signed number.
83 Generate 0xffffffff8000 with arithmetic here, for portability. */
84#define PPC_HIGHESTA(v) \
85 ((((v) >> 48) \
86 + (((v) & (((valueT) 1 << 48) - 0x8000)) == ((valueT) 1 << 48) - 0x8000)) \
87 & 0xffff)
88
89#define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000)
90
252b5132
RH		 91static boolean reg_names_p = TARGET_REG_NAMES_P;
92
93static boolean register_name PARAMS ((expressionS *));
94static void ppc_set_cpu PARAMS ((void));
95static unsigned long ppc_insert_operand
96 PARAMS ((unsigned long insn, const struct powerpc_operand *operand,
97 offsetT val, char *file, unsigned int line));
98static void ppc_macro PARAMS ((char *str, const struct powerpc_macro *macro));
99static void ppc_byte PARAMS ((int));
0baf16f2
AM		 100
101#if defined (OBJ_XCOFF) || defined (OBJ_ELF)
252b5132
RH		 102static int ppc_is_toc_sym PARAMS ((symbolS *sym));
103static void ppc_tc PARAMS ((int));
0baf16f2
AM		 104static void ppc_machine PARAMS ((int));
105#endif
252b5132
RH		 106
107#ifdef OBJ_XCOFF
108static void ppc_comm PARAMS ((int));
109static void ppc_bb PARAMS ((int));
110static void ppc_bc PARAMS ((int));
111static void ppc_bf PARAMS ((int));
112static void ppc_biei PARAMS ((int));
113static void ppc_bs PARAMS ((int));
114static void ppc_eb PARAMS ((int));
115static void ppc_ec PARAMS ((int));
116static void ppc_ef PARAMS ((int));
117static void ppc_es PARAMS ((int));
118static void ppc_csect PARAMS ((int));
119static void ppc_change_csect PARAMS ((symbolS *));
120static void ppc_function PARAMS ((int));
121static void ppc_extern PARAMS ((int));
122static void ppc_lglobl PARAMS ((int));
123static void ppc_section PARAMS ((int));
124static void ppc_named_section PARAMS ((int));
125static void ppc_stabx PARAMS ((int));
126static void ppc_rename PARAMS ((int));
127static void ppc_toc PARAMS ((int));
128static void ppc_xcoff_cons PARAMS ((int));
129static void ppc_vbyte PARAMS ((int));
130#endif
131
132#ifdef OBJ_ELF
133static bfd_reloc_code_real_type ppc_elf_suffix PARAMS ((char **, expressionS *));
134static void ppc_elf_cons PARAMS ((int));
135static void ppc_elf_rdata PARAMS ((int));
136static void ppc_elf_lcomm PARAMS ((int));
137static void ppc_elf_validate_fix PARAMS ((fixS *, segT));
138#endif
139
140#ifdef TE_PE
141static void ppc_set_current_section PARAMS ((segT));
142static void ppc_previous PARAMS ((int));
143static void ppc_pdata PARAMS ((int));
144static void ppc_ydata PARAMS ((int));
145static void ppc_reldata PARAMS ((int));
146static void ppc_rdata PARAMS ((int));
147static void ppc_ualong PARAMS ((int));
148static void ppc_znop PARAMS ((int));
149static void ppc_pe_comm PARAMS ((int));
150static void ppc_pe_section PARAMS ((int));
151static void ppc_pe_function PARAMS ((int));
152static void ppc_pe_tocd PARAMS ((int));
153#endif
154\f
155/* Generic assembler global variables which must be defined by all
156 targets. */
157
158#ifdef OBJ_ELF
159/* This string holds the chars that always start a comment. If the
160 pre-processor is disabled, these aren't very useful. The macro
161 tc_comment_chars points to this. We use this, rather than the
162 usual comment_chars, so that we can switch for Solaris conventions. */
163static const char ppc_solaris_comment_chars[] = "#!";
164static const char ppc_eabi_comment_chars[] = "#";
165
166#ifdef TARGET_SOLARIS_COMMENT
167const char *ppc_comment_chars = ppc_solaris_comment_chars;
168#else
169const char *ppc_comment_chars = ppc_eabi_comment_chars;
170#endif
171#else
172const char comment_chars[] = "#";
173#endif
174
175/* Characters which start a comment at the beginning of a line. */
176const char line_comment_chars[] = "#";
177
178/* Characters which may be used to separate multiple commands on a
179 single line. */
180const char line_separator_chars[] = ";";
181
182/* Characters which are used to indicate an exponent in a floating
183 point number. */
184const char EXP_CHARS[] = "eE";
185
186/* Characters which mean that a number is a floating point constant,
187 as in 0d1.0. */
188const char FLT_CHARS[] = "dD";
189\f
190/* The target specific pseudo-ops which we support. */
191
192const pseudo_typeS md_pseudo_table[] =
193{
194 /* Pseudo-ops which must be overridden. */
195 { "byte", ppc_byte, 0 },
196
197#ifdef OBJ_XCOFF
198 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
199 legitimately belong in the obj-*.c file. However, XCOFF is based
200 on COFF, and is only implemented for the RS/6000. We just use
201 obj-coff.c, and add what we need here. */
202 { "comm", ppc_comm, 0 },
203 { "lcomm", ppc_comm, 1 },
204 { "bb", ppc_bb, 0 },
205 { "bc", ppc_bc, 0 },
206 { "bf", ppc_bf, 0 },
207 { "bi", ppc_biei, 0 },
208 { "bs", ppc_bs, 0 },
209 { "csect", ppc_csect, 0 },
210 { "data", ppc_section, 'd' },
211 { "eb", ppc_eb, 0 },
212 { "ec", ppc_ec, 0 },
213 { "ef", ppc_ef, 0 },
214 { "ei", ppc_biei, 1 },
215 { "es", ppc_es, 0 },
216 { "extern", ppc_extern, 0 },
217 { "function", ppc_function, 0 },
218 { "lglobl", ppc_lglobl, 0 },
219 { "rename", ppc_rename, 0 },
220 { "section", ppc_named_section, 0 },
221 { "stabx", ppc_stabx, 0 },
222 { "text", ppc_section, 't' },
223 { "toc", ppc_toc, 0 },
224 { "long", ppc_xcoff_cons, 2 },
7f6d05e8 225 { "llong", ppc_xcoff_cons, 3 },
252b5132
RH		 226 { "word", ppc_xcoff_cons, 1 },
227 { "short", ppc_xcoff_cons, 1 },
228 { "vbyte", ppc_vbyte, 0 },
229#endif
230
231#ifdef OBJ_ELF
0baf16f2
AM		 232 { "llong", ppc_elf_cons, 8 },
233 { "quad", ppc_elf_cons, 8 },
252b5132
RH		 234 { "long", ppc_elf_cons, 4 },
235 { "word", ppc_elf_cons, 2 },
236 { "short", ppc_elf_cons, 2 },
237 { "rdata", ppc_elf_rdata, 0 },
238 { "rodata", ppc_elf_rdata, 0 },
239 { "lcomm", ppc_elf_lcomm, 0 },
5d6f4f16
GK		 240 { "file", dwarf2_directive_file, 0 },
241 { "loc", dwarf2_directive_loc, 0 },
252b5132
RH		 242#endif
243
244#ifdef TE_PE
99a814a1 245 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
252b5132
RH		 246 { "previous", ppc_previous, 0 },
247 { "pdata", ppc_pdata, 0 },
248 { "ydata", ppc_ydata, 0 },
249 { "reldata", ppc_reldata, 0 },
250 { "rdata", ppc_rdata, 0 },
251 { "ualong", ppc_ualong, 0 },
252 { "znop", ppc_znop, 0 },
253 { "comm", ppc_pe_comm, 0 },
254 { "lcomm", ppc_pe_comm, 1 },
255 { "section", ppc_pe_section, 0 },
256 { "function", ppc_pe_function,0 },
257 { "tocd", ppc_pe_tocd, 0 },
258#endif
259
0baf16f2 260#if defined (OBJ_XCOFF) || defined (OBJ_ELF)
252b5132 261 { "tc", ppc_tc, 0 },
0baf16f2
AM		 262 { "machine", ppc_machine, 0 },
263#endif
252b5132
RH		 264
265 { NULL, NULL, 0 }
266};
267
268\f
99a814a1
AM		 269/* Predefined register names if -mregnames (or default for Windows NT).
270 In general, there are lots of them, in an attempt to be compatible
271 with a number of other Windows NT assemblers. */
252b5132
RH		 272
273/* Structure to hold information about predefined registers. */
274struct pd_reg
275 {
276 char *name;
277 int value;
278 };
279
280/* List of registers that are pre-defined:
281
282 Each general register has predefined names of the form:
283 1. r<reg_num> which has the value <reg_num>.
284 2. r.<reg_num> which has the value <reg_num>.
285
252b5132
RH		 286 Each floating point register has predefined names of the form:
287 1. f<reg_num> which has the value <reg_num>.
288 2. f.<reg_num> which has the value <reg_num>.
289
7a899fff
C		 290 Each vector unit register has predefined names of the form:
291 1. v<reg_num> which has the value <reg_num>.
292 2. v.<reg_num> which has the value <reg_num>.
293
252b5132
RH		 294 Each condition register has predefined names of the form:
295 1. cr<reg_num> which has the value <reg_num>.
296 2. cr.<reg_num> which has the value <reg_num>.
297
298 There are individual registers as well:
299 sp or r.sp has the value 1
300 rtoc or r.toc has the value 2
301 fpscr has the value 0
302 xer has the value 1
303 lr has the value 8
304 ctr has the value 9
305 pmr has the value 0
306 dar has the value 19
307 dsisr has the value 18
308 dec has the value 22
309 sdr1 has the value 25
310 srr0 has the value 26
311 srr1 has the value 27
312
81d4177b 313 The table is sorted. Suitable for searching by a binary search. */
252b5132
RH		 314
315static const struct pd_reg pre_defined_registers[] =
316{
317 { "cr.0", 0 }, /* Condition Registers */
318 { "cr.1", 1 },
319 { "cr.2", 2 },
320 { "cr.3", 3 },
321 { "cr.4", 4 },
322 { "cr.5", 5 },
323 { "cr.6", 6 },
324 { "cr.7", 7 },
325
326 { "cr0", 0 },
327 { "cr1", 1 },
328 { "cr2", 2 },
329 { "cr3", 3 },
330 { "cr4", 4 },
331 { "cr5", 5 },
332 { "cr6", 6 },
333 { "cr7", 7 },
334
335 { "ctr", 9 },
336
337 { "dar", 19 }, /* Data Access Register */
338 { "dec", 22 }, /* Decrementer */
339 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
340
341 { "f.0", 0 }, /* Floating point registers */
81d4177b
KH		 342 { "f.1", 1 },
343 { "f.10", 10 },
344 { "f.11", 11 },
345 { "f.12", 12 },
346 { "f.13", 13 },
347 { "f.14", 14 },
348 { "f.15", 15 },
349 { "f.16", 16 },
350 { "f.17", 17 },
351 { "f.18", 18 },
352 { "f.19", 19 },
353 { "f.2", 2 },
354 { "f.20", 20 },
355 { "f.21", 21 },
356 { "f.22", 22 },
357 { "f.23", 23 },
358 { "f.24", 24 },
359 { "f.25", 25 },
360 { "f.26", 26 },
361 { "f.27", 27 },
362 { "f.28", 28 },
363 { "f.29", 29 },
364 { "f.3", 3 },
252b5132
RH		 365 { "f.30", 30 },
366 { "f.31", 31 },
81d4177b
KH		 367 { "f.4", 4 },
368 { "f.5", 5 },
369 { "f.6", 6 },
370 { "f.7", 7 },
371 { "f.8", 8 },
372 { "f.9", 9 },
373
374 { "f0", 0 },
375 { "f1", 1 },
376 { "f10", 10 },
377 { "f11", 11 },
378 { "f12", 12 },
379 { "f13", 13 },
380 { "f14", 14 },
381 { "f15", 15 },
382 { "f16", 16 },
383 { "f17", 17 },
384 { "f18", 18 },
385 { "f19", 19 },
386 { "f2", 2 },
387 { "f20", 20 },
388 { "f21", 21 },
389 { "f22", 22 },
390 { "f23", 23 },
391 { "f24", 24 },
392 { "f25", 25 },
393 { "f26", 26 },
394 { "f27", 27 },
395 { "f28", 28 },
396 { "f29", 29 },
397 { "f3", 3 },
252b5132
RH		 398 { "f30", 30 },
399 { "f31", 31 },
81d4177b
KH		 400 { "f4", 4 },
401 { "f5", 5 },
402 { "f6", 6 },
403 { "f7", 7 },
404 { "f8", 8 },
405 { "f9", 9 },
252b5132
RH		 406
407 { "fpscr", 0 },
408
409 { "lr", 8 }, /* Link Register */
410
411 { "pmr", 0 },
412
413 { "r.0", 0 }, /* General Purpose Registers */
414 { "r.1", 1 },
415 { "r.10", 10 },
416 { "r.11", 11 },
417 { "r.12", 12 },
418 { "r.13", 13 },
419 { "r.14", 14 },
420 { "r.15", 15 },
421 { "r.16", 16 },
422 { "r.17", 17 },
423 { "r.18", 18 },
424 { "r.19", 19 },
425 { "r.2", 2 },
426 { "r.20", 20 },
427 { "r.21", 21 },
428 { "r.22", 22 },
429 { "r.23", 23 },
430 { "r.24", 24 },
431 { "r.25", 25 },
432 { "r.26", 26 },
433 { "r.27", 27 },
434 { "r.28", 28 },
435 { "r.29", 29 },
436 { "r.3", 3 },
437 { "r.30", 30 },
438 { "r.31", 31 },
439 { "r.4", 4 },
440 { "r.5", 5 },
441 { "r.6", 6 },
442 { "r.7", 7 },
443 { "r.8", 8 },
444 { "r.9", 9 },
445
446 { "r.sp", 1 }, /* Stack Pointer */
447
448 { "r.toc", 2 }, /* Pointer to the table of contents */
449
450 { "r0", 0 }, /* More general purpose registers */
451 { "r1", 1 },
452 { "r10", 10 },
453 { "r11", 11 },
454 { "r12", 12 },
455 { "r13", 13 },
456 { "r14", 14 },
457 { "r15", 15 },
458 { "r16", 16 },
459 { "r17", 17 },
460 { "r18", 18 },
461 { "r19", 19 },
462 { "r2", 2 },
463 { "r20", 20 },
464 { "r21", 21 },
465 { "r22", 22 },
466 { "r23", 23 },
467 { "r24", 24 },
468 { "r25", 25 },
469 { "r26", 26 },
470 { "r27", 27 },
471 { "r28", 28 },
472 { "r29", 29 },
473 { "r3", 3 },
474 { "r30", 30 },
475 { "r31", 31 },
476 { "r4", 4 },
477 { "r5", 5 },
478 { "r6", 6 },
479 { "r7", 7 },
480 { "r8", 8 },
481 { "r9", 9 },
482
483 { "rtoc", 2 }, /* Table of contents */
484
485 { "sdr1", 25 }, /* Storage Description Register 1 */
486
487 { "sp", 1 },
488
489 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
490 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
81d4177b 491
7a899fff 492 { "v.0", 0 }, /* Vector registers */
81d4177b
KH		 493 { "v.1", 1 },
494 { "v.10", 10 },
495 { "v.11", 11 },
496 { "v.12", 12 },
497 { "v.13", 13 },
498 { "v.14", 14 },
499 { "v.15", 15 },
500 { "v.16", 16 },
501 { "v.17", 17 },
502 { "v.18", 18 },
503 { "v.19", 19 },
504 { "v.2", 2 },
505 { "v.20", 20 },
506 { "v.21", 21 },
507 { "v.22", 22 },
508 { "v.23", 23 },
509 { "v.24", 24 },
510 { "v.25", 25 },
511 { "v.26", 26 },
512 { "v.27", 27 },
513 { "v.28", 28 },
514 { "v.29", 29 },
515 { "v.3", 3 },
7a899fff
C		 516 { "v.30", 30 },
517 { "v.31", 31 },
81d4177b
KH		 518 { "v.4", 4 },
519 { "v.5", 5 },
520 { "v.6", 6 },
521 { "v.7", 7 },
522 { "v.8", 8 },
523 { "v.9", 9 },
7a899fff
C		 524
525 { "v0", 0 },
81d4177b
KH		 526 { "v1", 1 },
527 { "v10", 10 },
528 { "v11", 11 },
529 { "v12", 12 },
530 { "v13", 13 },
531 { "v14", 14 },
532 { "v15", 15 },
533 { "v16", 16 },
534 { "v17", 17 },
535 { "v18", 18 },
536 { "v19", 19 },
537 { "v2", 2 },
538 { "v20", 20 },
539 { "v21", 21 },
540 { "v22", 22 },
541 { "v23", 23 },
542 { "v24", 24 },
543 { "v25", 25 },
544 { "v26", 26 },
545 { "v27", 27 },
546 { "v28", 28 },
547 { "v29", 29 },
548 { "v3", 3 },
7a899fff
C		 549 { "v30", 30 },
550 { "v31", 31 },
81d4177b
KH		 551 { "v4", 4 },
552 { "v5", 5 },
553 { "v6", 6 },
554 { "v7", 7 },
555 { "v8", 8 },
7a899fff 556 { "v9", 9 },
252b5132
RH		 557
558 { "xer", 1 },
559
560};
561
bc805888 562#define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
252b5132
RH		 563
564/* Given NAME, find the register number associated with that name, return
565 the integer value associated with the given name or -1 on failure. */
566
567static int reg_name_search
568 PARAMS ((const struct pd_reg *, int, const char * name));
569
570static int
571reg_name_search (regs, regcount, name)
572 const struct pd_reg *regs;
573 int regcount;
574 const char *name;
575{
576 int middle, low, high;
577 int cmp;
578
579 low = 0;
580 high = regcount - 1;
581
582 do
583 {
584 middle = (low + high) / 2;
585 cmp = strcasecmp (name, regs[middle].name);
586 if (cmp < 0)
587 high = middle - 1;
588 else if (cmp > 0)
589 low = middle + 1;
590 else
591 return regs[middle].value;
592 }
593 while (low <= high);
594
595 return -1;
596}
597
598/*
99a814a1 599 * Summary of register_name.
252b5132
RH		 600 *
601 * in: Input_line_pointer points to 1st char of operand.
602 *
603 * out: A expressionS.
604 * The operand may have been a register: in this case, X_op == O_register,
605 * X_add_number is set to the register number, and truth is returned.
606 * Input_line_pointer->(next non-blank) char after operand, or is in its
607 * original state.
608 */
609
610static boolean
611register_name (expressionP)
612 expressionS *expressionP;
613{
614 int reg_number;
615 char *name;
616 char *start;
617 char c;
618
99a814a1 619 /* Find the spelling of the operand. */
252b5132 620 start = name = input_line_pointer;
3882b010 621 if (name[0] == '%' && ISALPHA (name[1]))
252b5132
RH		 622 name = ++input_line_pointer;
623
3882b010 624 else if (!reg_names_p || !ISALPHA (name[0]))
252b5132
RH		 625 return false;
626
627 c = get_symbol_end ();
628 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
629
468cced8
AM		 630 /* Put back the delimiting char. */
631 *input_line_pointer = c;
632
99a814a1 633 /* Look to see if it's in the register table. */
81d4177b 634 if (reg_number >= 0)
252b5132
RH		 635 {
636 expressionP->X_op = O_register;
637 expressionP->X_add_number = reg_number;
81d4177b 638
99a814a1 639 /* Make the rest nice. */
252b5132
RH		 640 expressionP->X_add_symbol = NULL;
641 expressionP->X_op_symbol = NULL;
252b5132
RH		 642 return true;
643 }
468cced8
AM		 644
645 /* Reset the line as if we had not done anything. */
646 input_line_pointer = start;
647 return false;
252b5132
RH		 648}
649\f
650/* This function is called for each symbol seen in an expression. It
651 handles the special parsing which PowerPC assemblers are supposed
652 to use for condition codes. */
653
654/* Whether to do the special parsing. */
655static boolean cr_operand;
656
657/* Names to recognize in a condition code. This table is sorted. */
658static const struct pd_reg cr_names[] =
659{
660 { "cr0", 0 },
661 { "cr1", 1 },
662 { "cr2", 2 },
663 { "cr3", 3 },
664 { "cr4", 4 },
665 { "cr5", 5 },
666 { "cr6", 6 },
667 { "cr7", 7 },
668 { "eq", 2 },
669 { "gt", 1 },
670 { "lt", 0 },
671 { "so", 3 },
672 { "un", 3 }
673};
674
675/* Parsing function. This returns non-zero if it recognized an
676 expression. */
677
678int
679ppc_parse_name (name, expr)
680 const char *name;
681 expressionS *expr;
682{
683 int val;
684
685 if (! cr_operand)
686 return 0;
687
688 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
689 name);
690 if (val < 0)
691 return 0;
692
693 expr->X_op = O_constant;
694 expr->X_add_number = val;
695
696 return 1;
697}
698\f
699/* Local variables. */
700
701/* The type of processor we are assembling for. This is one or more
702 of the PPC_OPCODE flags defined in opcode/ppc.h. */
703static int ppc_cpu = 0;
704
705/* The size of the processor we are assembling for. This is either
706 PPC_OPCODE_32 or PPC_OPCODE_64. */
92161534 707static unsigned long ppc_size = PPC_OPCODE_32;
252b5132 708
99a814a1 709/* Whether to target xcoff64. */
7f6d05e8
CP		 710static int ppc_xcoff64 = 0;
711
252b5132
RH		 712/* Opcode hash table. */
713static struct hash_control *ppc_hash;
714
715/* Macro hash table. */
716static struct hash_control *ppc_macro_hash;
717
718#ifdef OBJ_ELF
99a814a1 719/* What type of shared library support to use. */
5d6f4f16 720static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE;
252b5132 721
99a814a1 722/* Flags to set in the elf header. */
252b5132
RH		 723static flagword ppc_flags = 0;
724
725/* Whether this is Solaris or not. */
726#ifdef TARGET_SOLARIS_COMMENT
727#define SOLARIS_P true
728#else
729#define SOLARIS_P false
730#endif
731
732static boolean msolaris = SOLARIS_P;
733#endif
734
735#ifdef OBJ_XCOFF
736
737/* The RS/6000 assembler uses the .csect pseudo-op to generate code
738 using a bunch of different sections. These assembler sections,
739 however, are all encompassed within the .text or .data sections of
740 the final output file. We handle this by using different
741 subsegments within these main segments. */
742
743/* Next subsegment to allocate within the .text segment. */
744static subsegT ppc_text_subsegment = 2;
745
746/* Linked list of csects in the text section. */
747static symbolS *ppc_text_csects;
748
749/* Next subsegment to allocate within the .data segment. */
750static subsegT ppc_data_subsegment = 2;
751
752/* Linked list of csects in the data section. */
753static symbolS *ppc_data_csects;
754
755/* The current csect. */
756static symbolS *ppc_current_csect;
757
758/* The RS/6000 assembler uses a TOC which holds addresses of functions
759 and variables. Symbols are put in the TOC with the .tc pseudo-op.
760 A special relocation is used when accessing TOC entries. We handle
761 the TOC as a subsegment within the .data segment. We set it up if
762 we see a .toc pseudo-op, and save the csect symbol here. */
763static symbolS *ppc_toc_csect;
764
765/* The first frag in the TOC subsegment. */
766static fragS *ppc_toc_frag;
767
768/* The first frag in the first subsegment after the TOC in the .data
769 segment. NULL if there are no subsegments after the TOC. */
770static fragS *ppc_after_toc_frag;
771
772/* The current static block. */
773static symbolS *ppc_current_block;
774
775/* The COFF debugging section; set by md_begin. This is not the
776 .debug section, but is instead the secret BFD section which will
777 cause BFD to set the section number of a symbol to N_DEBUG. */
778static asection *ppc_coff_debug_section;
779
780#endif /* OBJ_XCOFF */
781
782#ifdef TE_PE
783
784/* Various sections that we need for PE coff support. */
785static segT ydata_section;
786static segT pdata_section;
787static segT reldata_section;
788static segT rdata_section;
789static segT tocdata_section;
790
81d4177b 791/* The current section and the previous section. See ppc_previous. */
252b5132
RH		 792static segT ppc_previous_section;
793static segT ppc_current_section;
794
795#endif /* TE_PE */
796
797#ifdef OBJ_ELF
798symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
799#endif /* OBJ_ELF */
800\f
801#ifdef OBJ_ELF
802CONST char *md_shortopts = "b:l:usm:K:VQ:";
803#else
804CONST char *md_shortopts = "um:";
805#endif
806struct option md_longopts[] = {
807 {NULL, no_argument, NULL, 0}
808};
bc805888 809size_t md_longopts_size = sizeof (md_longopts);
252b5132
RH		 810
811int
812md_parse_option (c, arg)
813 int c;
814 char *arg;
815{
816 switch (c)
817 {
818 case 'u':
819 /* -u means that any undefined symbols should be treated as
820 external, which is the default for gas anyhow. */
821 break;
822
823#ifdef OBJ_ELF
824 case 'l':
825 /* Solaris as takes -le (presumably for little endian). For completeness
99a814a1 826 sake, recognize -be also. */
252b5132
RH		 827 if (strcmp (arg, "e") == 0)
828 {
829 target_big_endian = 0;
830 set_target_endian = 1;
831 }
832 else
833 return 0;
834
835 break;
836
837 case 'b':
838 if (strcmp (arg, "e") == 0)
839 {
840 target_big_endian = 1;
841 set_target_endian = 1;
842 }
843 else
844 return 0;
845
846 break;
847
848 case 'K':
99a814a1 849 /* Recognize -K PIC. */
252b5132
RH		 850 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
851 {
852 shlib = SHLIB_PIC;
853 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
854 }
855 else
856 return 0;
857
858 break;
859#endif
860
7f6d05e8
CP		 861 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
862 case 'a':
863 if (strcmp (arg, "64") == 0)
864 ppc_xcoff64 = 1;
865 else if (strcmp (arg, "32") == 0)
866 ppc_xcoff64 = 0;
867 else
868 return 0;
869 break;
81d4177b 870
252b5132 871 case 'm':
0baf16f2
AM		 872 /* Most CPU's are 32 bit. Exceptions are listed below. */
873 ppc_size = PPC_OPCODE_32;
874
252b5132 875 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
99a814a1 876 (RIOS2). */
252b5132
RH		 877 if (strcmp (arg, "pwrx") == 0 || strcmp (arg, "pwr2") == 0)
878 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2;
879 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
880 else if (strcmp (arg, "pwr") == 0)
881 ppc_cpu = PPC_OPCODE_POWER;
882 /* -m601 means to assemble for the Motorola PowerPC 601, which includes
99a814a1 883 instructions that are holdovers from the Power. */
252b5132
RH		 884 else if (strcmp (arg, "601") == 0)
885 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_601;
886 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
99a814a1 887 Motorola PowerPC 603/604. */
252b5132
RH		 888 else if (strcmp (arg, "ppc") == 0
889 || strcmp (arg, "ppc32") == 0
890 || strcmp (arg, "403") == 0
e0c21649 891 || strcmp (arg, "405") == 0
252b5132
RH		 892 || strcmp (arg, "603") == 0
893 || strcmp (arg, "604") == 0)
894 ppc_cpu = PPC_OPCODE_PPC;
7a899fff 895 else if (strcmp (arg, "7400") == 0)
99a814a1 896 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC;
252b5132 897 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
99a814a1 898 620. */
252b5132
RH		 899 else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0)
900 {
901 ppc_cpu = PPC_OPCODE_PPC;
902 ppc_size = PPC_OPCODE_64;
903 }
d0e9a01c
RH		 904 else if (strcmp (arg, "ppc64bridge") == 0)
905 {
906 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_64_BRIDGE;
907 ppc_size = PPC_OPCODE_64;
908 }
252b5132
RH		 909 /* -mcom means assemble for the common intersection between Power
910 and PowerPC. At present, we just allow the union, rather
911 than the intersection. */
912 else if (strcmp (arg, "com") == 0)
913 ppc_cpu = PPC_OPCODE_COMMON;
914 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
915 else if (strcmp (arg, "any") == 0)
916 ppc_cpu = PPC_OPCODE_ANY;
917
918 else if (strcmp (arg, "regnames") == 0)
919 reg_names_p = true;
920
921 else if (strcmp (arg, "no-regnames") == 0)
922 reg_names_p = false;
923
924#ifdef OBJ_ELF
99a814a1
AM		 925 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
926 that require relocation. */
252b5132
RH		 927 else if (strcmp (arg, "relocatable") == 0)
928 {
5d6f4f16 929 shlib = SHLIB_MRELOCATABLE;
252b5132
RH		 930 ppc_flags |= EF_PPC_RELOCATABLE;
931 }
932
933 else if (strcmp (arg, "relocatable-lib") == 0)
934 {
5d6f4f16 935 shlib = SHLIB_MRELOCATABLE;
252b5132
RH		 936 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
937 }
938
99a814a1 939 /* -memb, set embedded bit. */
252b5132
RH		 940 else if (strcmp (arg, "emb") == 0)
941 ppc_flags |= EF_PPC_EMB;
942
99a814a1
AM		 943 /* -mlittle/-mbig set the endianess. */
944 else if (strcmp (arg, "little") == 0
945 || strcmp (arg, "little-endian") == 0)
252b5132
RH		 946 {
947 target_big_endian = 0;
948 set_target_endian = 1;
949 }
950
951 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
952 {
953 target_big_endian = 1;
954 set_target_endian = 1;
955 }
956
957 else if (strcmp (arg, "solaris") == 0)
958 {
959 msolaris = true;
960 ppc_comment_chars = ppc_solaris_comment_chars;
961 }
962
963 else if (strcmp (arg, "no-solaris") == 0)
964 {
965 msolaris = false;
966 ppc_comment_chars = ppc_eabi_comment_chars;
967 }
968#endif
969 else
970 {
971 as_bad (_("invalid switch -m%s"), arg);
972 return 0;
973 }
974 break;
975
976#ifdef OBJ_ELF
977 /* -V: SVR4 argument to print version ID. */
978 case 'V':
979 print_version_id ();
980 break;
981
982 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
983 should be emitted or not. FIXME: Not implemented. */
984 case 'Q':
985 break;
986
987 /* Solaris takes -s to specify that .stabs go in a .stabs section,
988 rather than .stabs.excl, which is ignored by the linker.
989 FIXME: Not implemented. */
990 case 's':
991 if (arg)
992 return 0;
993
994 break;
995#endif
996
997 default:
998 return 0;
999 }
1000
1001 return 1;
1002}
1003
1004void
1005md_show_usage (stream)
1006 FILE *stream;
1007{
bc805888 1008 fprintf (stream, _("\
252b5132
RH		 1009PowerPC options:\n\
1010-u ignored\n\
1011-mpwrx, -mpwr2 generate code for IBM POWER/2 (RIOS2)\n\
1012-mpwr generate code for IBM POWER (RIOS1)\n\
1013-m601 generate code for Motorola PowerPC 601\n\
e0c21649 1014-mppc, -mppc32, -m403, -m405, -m603, -m604\n\
252b5132
RH		 1015 generate code for Motorola PowerPC 603/604\n\
1016-mppc64, -m620 generate code for Motorola PowerPC 620\n\
d0e9a01c 1017-mppc64bridge generate code for PowerPC 64, including bridge insns\n\
252b5132
RH		 1018-mcom generate code Power/PowerPC common instructions\n\
1019-many generate code for any architecture (PWR/PWRX/PPC)\n\
1020-mregnames Allow symbolic names for registers\n\
1021-mno-regnames Do not allow symbolic names for registers\n"));
1022#ifdef OBJ_ELF
bc805888 1023 fprintf (stream, _("\
252b5132
RH		 1024-mrelocatable support for GCC's -mrelocatble option\n\
1025-mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1026-memb set PPC_EMB bit in ELF flags\n\
1027-mlittle, -mlittle-endian\n\
1028 generate code for a little endian machine\n\
1029-mbig, -mbig-endian generate code for a big endian machine\n\
1030-msolaris generate code for Solaris\n\
1031-mno-solaris do not generate code for Solaris\n\
1032-V print assembler version number\n\
1033-Qy, -Qn ignored\n"));
1034#endif
1035}
1036\f
1037/* Set ppc_cpu if it is not already set. */
1038
1039static void
1040ppc_set_cpu ()
1041{
1042 const char *default_os = TARGET_OS;
1043 const char *default_cpu = TARGET_CPU;
1044
1045 if (ppc_cpu == 0)
1046 {
1047 if (strncmp (default_os, "aix", 3) == 0
1048 && default_os[3] >= '4' && default_os[3] <= '9')
1049 ppc_cpu = PPC_OPCODE_COMMON;
1050 else if (strncmp (default_os, "aix3", 4) == 0)
1051 ppc_cpu = PPC_OPCODE_POWER;
1052 else if (strcmp (default_cpu, "rs6000") == 0)
1053 ppc_cpu = PPC_OPCODE_POWER;
0baf16f2 1054 else if (strncmp (default_cpu, "powerpc", 7) == 0)
252b5132
RH		 1055 ppc_cpu = PPC_OPCODE_PPC;
1056 else
99a814a1
AM		 1057 as_fatal (_("Unknown default cpu = %s, os = %s"),
1058 default_cpu, default_os);
252b5132
RH		 1059 }
1060}
1061
1062/* Figure out the BFD architecture to use. */
1063
1064enum bfd_architecture
1065ppc_arch ()
1066{
1067 const char *default_cpu = TARGET_CPU;
1068 ppc_set_cpu ();
1069
1070 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1071 return bfd_arch_powerpc;
1072 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1073 return bfd_arch_rs6000;
1074 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1075 {
1076 if (strcmp (default_cpu, "rs6000") == 0)
1077 return bfd_arch_rs6000;
0baf16f2 1078 else if (strncmp (default_cpu, "powerpc", 7) == 0)
252b5132
RH		 1079 return bfd_arch_powerpc;
1080 }
1081
1082 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1083 return bfd_arch_unknown;
1084}
1085
7f6d05e8
CP		 1086unsigned long
1087ppc_mach ()
1088{
99a814a1 1089 return ppc_size == PPC_OPCODE_64 ? 620 : 0;
7f6d05e8
CP		 1090}
1091
0baf16f2 1092#ifdef OBJ_XCOFF
7f6d05e8 1093int
99a814a1 1094ppc_subseg_align ()
7f6d05e8 1095{
99a814a1 1096 return ppc_xcoff64 ? 3 : 2;
7f6d05e8 1097}
0baf16f2 1098#endif
7f6d05e8 1099
81d4177b 1100extern char*
99a814a1 1101ppc_target_format ()
7f6d05e8
CP		 1102{
1103#ifdef OBJ_COFF
1104#ifdef TE_PE
99a814a1 1105 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
7f6d05e8 1106#elif TE_POWERMAC
0baf16f2 1107 return "xcoff-powermac";
7f6d05e8 1108#else
99a814a1 1109 return ppc_xcoff64 ? "aixcoff64-rs6000" : "aixcoff-rs6000";
7f6d05e8 1110#endif
7f6d05e8
CP		 1111#endif
1112#ifdef OBJ_ELF
0baf16f2
AM		 1113 return (target_big_endian
1114 ? (BFD_DEFAULT_TARGET_SIZE == 64 ? "elf64-powerpc" : "elf32-powerpc")
1115 : (BFD_DEFAULT_TARGET_SIZE == 64 ? "elf64-powerpcle" : "elf32-powerpcle"));
7f6d05e8
CP		 1116#endif
1117}
1118
252b5132
RH		 1119/* This function is called when the assembler starts up. It is called
1120 after the options have been parsed and the output file has been
1121 opened. */
1122
1123void
1124md_begin ()
1125{
1126 register const struct powerpc_opcode *op;
1127 const struct powerpc_opcode *op_end;
1128 const struct powerpc_macro *macro;
1129 const struct powerpc_macro *macro_end;
1130 boolean dup_insn = false;
1131
1132 ppc_set_cpu ();
1133
1134#ifdef OBJ_ELF
0baf16f2
AM		 1135 /* If we're going to generate a 64-bit ABI file, then we need
1136 the 64-bit capable instructions. */
1137 if (BFD_DEFAULT_TARGET_SIZE == 64)
1138 ppc_size = PPC_OPCODE_64;
1139
81d4177b 1140 /* Set the ELF flags if desired. */
252b5132
RH		 1141 if (ppc_flags && !msolaris)
1142 bfd_set_private_flags (stdoutput, ppc_flags);
1143#endif
1144
1145 /* Insert the opcodes into a hash table. */
1146 ppc_hash = hash_new ();
1147
1148 op_end = powerpc_opcodes + powerpc_num_opcodes;
1149 for (op = powerpc_opcodes; op < op_end; op++)
1150 {
1151 know ((op->opcode & op->mask) == op->opcode);
1152
1153 if ((op->flags & ppc_cpu) != 0
1154 && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
d0e9a01c
RH		 1155 || (op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == ppc_size
1156 || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0))
252b5132
RH		 1157 {
1158 const char *retval;
1159
1160 retval = hash_insert (ppc_hash, op->name, (PTR) op);
1161 if (retval != (const char *) NULL)
1162 {
99a814a1 1163 /* Ignore Power duplicates for -m601. */
252b5132
RH		 1164 if ((ppc_cpu & PPC_OPCODE_601) != 0
1165 && (op->flags & PPC_OPCODE_POWER) != 0)
1166 continue;
1167
99a814a1
AM		 1168 as_bad (_("Internal assembler error for instruction %s"),
1169 op->name);
252b5132
RH		 1170 dup_insn = true;
1171 }
1172 }
1173 }
1174
1175 /* Insert the macros into a hash table. */
1176 ppc_macro_hash = hash_new ();
1177
1178 macro_end = powerpc_macros + powerpc_num_macros;
1179 for (macro = powerpc_macros; macro < macro_end; macro++)
1180 {
1181 if ((macro->flags & ppc_cpu) != 0)
1182 {
1183 const char *retval;
1184
1185 retval = hash_insert (ppc_macro_hash, macro->name, (PTR) macro);
1186 if (retval != (const char *) NULL)
1187 {
1188 as_bad (_("Internal assembler error for macro %s"), macro->name);
1189 dup_insn = true;
1190 }
1191 }
1192 }
1193
1194 if (dup_insn)
1195 abort ();
1196
99a814a1
AM		 1197 /* Tell the main code what the endianness is if it is not overidden
1198 by the user. */
252b5132
RH		 1199 if (!set_target_endian)
1200 {
1201 set_target_endian = 1;
1202 target_big_endian = PPC_BIG_ENDIAN;
1203 }
1204
1205#ifdef OBJ_XCOFF
1206 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1207
1208 /* Create dummy symbols to serve as initial csects. This forces the
1209 text csects to precede the data csects. These symbols will not
1210 be output. */
1211 ppc_text_csects = symbol_make ("dummy\001");
809ffe0d 1212 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
252b5132 1213 ppc_data_csects = symbol_make ("dummy\001");
809ffe0d 1214 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
252b5132
RH		 1215#endif
1216
1217#ifdef TE_PE
1218
1219 ppc_current_section = text_section;
81d4177b 1220 ppc_previous_section = 0;
252b5132
RH		 1221
1222#endif
1223}
1224
1225/* Insert an operand value into an instruction. */
1226
1227static unsigned long
1228ppc_insert_operand (insn, operand, val, file, line)
1229 unsigned long insn;
1230 const struct powerpc_operand *operand;
1231 offsetT val;
1232 char *file;
1233 unsigned int line;
1234{
1235 if (operand->bits != 32)
1236 {
1237 long min, max;
1238 offsetT test;
1239
1240 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1241 {
d0e9a01c 1242 if ((operand->flags & PPC_OPERAND_SIGNOPT) != 0)
252b5132
RH		 1243 max = (1 << operand->bits) - 1;
1244 else
1245 max = (1 << (operand->bits - 1)) - 1;
1246 min = - (1 << (operand->bits - 1));
1247
1248 if (ppc_size == PPC_OPCODE_32)
1249 {
1250 /* Some people write 32 bit hex constants with the sign
1251 extension done by hand. This shouldn't really be
1252 valid, but, to permit this code to assemble on a 64
1253 bit host, we sign extend the 32 bit value. */
1254 if (val > 0
92161534
ILT		 1255 && (val & (offsetT) 0x80000000) != 0
1256 && (val & (offsetT) 0xffffffff) == val)
252b5132
RH		 1257 {
1258 val -= 0x80000000;
1259 val -= 0x80000000;
1260 }
1261 }
1262 }
1263 else
1264 {
1265 max = (1 << operand->bits) - 1;
1266 min = 0;
1267 }
1268
1269 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1270 test = - val;
1271 else
1272 test = val;
1273
1274 if (test < (offsetT) min || test > (offsetT) max)
1275 {
1276 const char *err =
1277 _("operand out of range (%s not between %ld and %ld)");
1278 char buf[100];
1279
1280 sprint_value (buf, test);
0baf16f2 1281 as_bad_where (file, line, err, buf, min, max);
252b5132
RH		 1282 }
1283 }
1284
1285 if (operand->insert)
1286 {
1287 const char *errmsg;
1288
1289 errmsg = NULL;
1290 insn = (*operand->insert) (insn, (long) val, &errmsg);
1291 if (errmsg != (const char *) NULL)
0baf16f2 1292 as_bad_where (file, line, errmsg);
252b5132
RH		 1293 }
1294 else
1295 insn |= (((long) val & ((1 << operand->bits) - 1))
1296 << operand->shift);
1297
1298 return insn;
1299}
1300
1301\f
1302#ifdef OBJ_ELF
1303/* Parse @got, etc. and return the desired relocation. */
1304static bfd_reloc_code_real_type
1305ppc_elf_suffix (str_p, exp_p)
1306 char **str_p;
1307 expressionS *exp_p;
1308{
1309 struct map_bfd {
1310 char *string;
1311 int length;
1312 bfd_reloc_code_real_type reloc;
1313 };
1314
1315 char ident[20];
1316 char *str = *str_p;
1317 char *str2;
1318 int ch;
1319 int len;
1320 struct map_bfd *ptr;
1321
bc805888 1322#define MAP(str,reloc) { str, sizeof (str)-1, reloc }
252b5132
RH		 1323
1324 static struct map_bfd mapping[] = {
1325 MAP ("l", BFD_RELOC_LO16),
1326 MAP ("h", BFD_RELOC_HI16),
1327 MAP ("ha", BFD_RELOC_HI16_S),
1328 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1329 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1330 MAP ("got", BFD_RELOC_16_GOTOFF),
1331 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1332 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1333 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
99a814a1 1334 MAP ("fixup", BFD_RELOC_CTOR), /* warnings with -mrelocatable */
252b5132
RH		 1335 MAP ("plt", BFD_RELOC_24_PLT_PCREL),
1336 MAP ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1337 MAP ("copy", BFD_RELOC_PPC_COPY),
1338 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1339 MAP ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1340 MAP ("local", BFD_RELOC_PPC_LOCAL24PC),
1341 MAP ("pltrel", BFD_RELOC_32_PLT_PCREL),
1342 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1343 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1344 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1345 MAP ("sdarel", BFD_RELOC_GPREL16),
1346 MAP ("sectoff", BFD_RELOC_32_BASEREL),
1347 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1348 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1349 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1350 MAP ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1351 MAP ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1352 MAP ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1353 MAP ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1354 MAP ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1355 MAP ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1356 MAP ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1357 MAP ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1358 MAP ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1359 MAP ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1360 MAP ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1361 MAP ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1362 MAP ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1363 MAP ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1364 MAP ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1365 MAP ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1366 MAP ("xgot", BFD_RELOC_PPC_TOC16),
0baf16f2
AM		 1367#if BFD_DEFAULT_TARGET_SIZE == 64
1368 MAP ("higher", BFD_RELOC_PPC64_HIGHER),
1369 MAP ("highera", BFD_RELOC_PPC64_HIGHER_S),
1370 MAP ("highest", BFD_RELOC_PPC64_HIGHEST),
1371 MAP ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1372 MAP ("tocbase", BFD_RELOC_PPC64_TOC),
1373 MAP ("toc", BFD_RELOC_PPC_TOC16),
1374 MAP ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1375 MAP ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1376 MAP ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1377#endif
99a814a1 1378 { (char *) 0, 0, BFD_RELOC_UNUSED }
252b5132
RH		 1379 };
1380
1381 if (*str++ != '@')
1382 return BFD_RELOC_UNUSED;
1383
1384 for (ch = *str, str2 = ident;
1385 (str2 < ident + sizeof (ident) - 1
3882b010 1386 && (ISALNUM (ch) || ch == '@'));
252b5132
RH		 1387 ch = *++str)
1388 {
3882b010 1389 *str2++ = TOLOWER (ch);
252b5132
RH		 1390 }
1391
1392 *str2 = '\0';
1393 len = str2 - ident;
1394
1395 ch = ident[0];
1396 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1397 if (ch == ptr->string[0]
1398 && len == ptr->length
1399 && memcmp (ident, ptr->string, ptr->length) == 0)
1400 {
1401 if (exp_p->X_add_number != 0
1402 && (ptr->reloc == BFD_RELOC_16_GOTOFF
1403 || ptr->reloc == BFD_RELOC_LO16_GOTOFF
1404 || ptr->reloc == BFD_RELOC_HI16_GOTOFF
1405 || ptr->reloc == BFD_RELOC_HI16_S_GOTOFF))
1406 as_warn (_("identifier+constant@got means identifier@got+constant"));
1407
99a814a1 1408 /* Now check for identifier@suffix+constant. */
252b5132
RH		 1409 if (*str == '-' || *str == '+')
1410 {
1411 char *orig_line = input_line_pointer;
1412 expressionS new_exp;
1413
1414 input_line_pointer = str;
1415 expression (&new_exp);
1416 if (new_exp.X_op == O_constant)
1417 {
1418 exp_p->X_add_number += new_exp.X_add_number;
1419 str = input_line_pointer;
1420 }
1421
1422 if (&input_line_pointer != str_p)
1423 input_line_pointer = orig_line;
1424 }
252b5132 1425 *str_p = str;
0baf16f2
AM		 1426
1427 if (BFD_DEFAULT_TARGET_SIZE == 64
1428 && ptr->reloc == BFD_RELOC_PPC64_TOC
1429 && exp_p->X_op == O_symbol)
1430 {
1431 /* This reloc type ignores the symbol. Change the symbol
1432 so that the dummy .TOC. symbol can be omitted from the
1433 object file. */
1434 exp_p->X_add_symbol = &abs_symbol;
1435 }
1436
252b5132
RH		 1437 return ptr->reloc;
1438 }
1439
1440 return BFD_RELOC_UNUSED;
1441}
1442
99a814a1
AM		 1443/* Like normal .long/.short/.word, except support @got, etc.
1444 Clobbers input_line_pointer, checks end-of-line. */
252b5132
RH		 1445static void
1446ppc_elf_cons (nbytes)
0baf16f2 1447 register int nbytes; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */
252b5132
RH		 1448{
1449 expressionS exp;
1450 bfd_reloc_code_real_type reloc;
1451
1452 if (is_it_end_of_statement ())
1453 {
1454 demand_empty_rest_of_line ();
1455 return;
1456 }
1457
1458 do
1459 {
1460 expression (&exp);
1461 if (exp.X_op == O_symbol
1462 && *input_line_pointer == '@'
99a814a1
AM		 1463 && (reloc = ppc_elf_suffix (&input_line_pointer,
1464 &exp)) != BFD_RELOC_UNUSED)
252b5132 1465 {
99a814a1
AM		 1466 reloc_howto_type *reloc_howto;
1467 int size;
1468
1469 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1470 size = bfd_get_reloc_size (reloc_howto);
252b5132
RH		 1471
1472 if (size > nbytes)
0baf16f2
AM		 1473 {
1474 as_bad (_("%s relocations do not fit in %d bytes\n"),
1475 reloc_howto->name, nbytes);
1476 }
252b5132
RH		 1477 else
1478 {
0baf16f2
AM		 1479 char *p;
1480 int offset;
252b5132 1481
0baf16f2
AM		 1482 p = frag_more (nbytes);
1483 offset = 0;
1484 if (target_big_endian)
1485 offset = nbytes - size;
99a814a1
AM		 1486 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
1487 &exp, 0, reloc);
252b5132
RH		 1488 }
1489 }
1490 else
1491 emit_expr (&exp, (unsigned int) nbytes);
1492 }
1493 while (*input_line_pointer++ == ',');
1494
99a814a1
AM		 1495 /* Put terminator back into stream. */
1496 input_line_pointer--;
252b5132
RH		 1497 demand_empty_rest_of_line ();
1498}
1499
1500/* Solaris pseduo op to change to the .rodata section. */
1501static void
1502ppc_elf_rdata (xxx)
1503 int xxx;
1504{
1505 char *save_line = input_line_pointer;
1506 static char section[] = ".rodata\n";
1507
99a814a1 1508 /* Just pretend this is .section .rodata */
252b5132
RH		 1509 input_line_pointer = section;
1510 obj_elf_section (xxx);
1511
1512 input_line_pointer = save_line;
1513}
1514
99a814a1 1515/* Pseudo op to make file scope bss items. */
252b5132 1516static void
99a814a1 1517ppc_elf_lcomm (xxx)
92161534 1518 int xxx ATTRIBUTE_UNUSED;
252b5132
RH		 1519{
1520 register char *name;
1521 register char c;
1522 register char *p;
1523 offsetT size;
1524 register symbolS *symbolP;
1525 offsetT align;
1526 segT old_sec;
1527 int old_subsec;
1528 char *pfrag;
1529 int align2;
1530
1531 name = input_line_pointer;
1532 c = get_symbol_end ();
1533
99a814a1 1534 /* just after name is now '\0'. */
252b5132
RH		 1535 p = input_line_pointer;
1536 *p = c;
1537 SKIP_WHITESPACE ();
1538 if (*input_line_pointer != ',')
1539 {
1540 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1541 ignore_rest_of_line ();
1542 return;
1543 }
1544
1545 input_line_pointer++; /* skip ',' */
1546 if ((size = get_absolute_expression ()) < 0)
1547 {
1548 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
1549 ignore_rest_of_line ();
1550 return;
1551 }
1552
1553 /* The third argument to .lcomm is the alignment. */
1554 if (*input_line_pointer != ',')
1555 align = 8;
1556 else
1557 {
1558 ++input_line_pointer;
1559 align = get_absolute_expression ();
1560 if (align <= 0)
1561 {
1562 as_warn (_("ignoring bad alignment"));
1563 align = 8;
1564 }
1565 }
1566
1567 *p = 0;
1568 symbolP = symbol_find_or_make (name);
1569 *p = c;
1570
1571 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
1572 {
1573 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1574 S_GET_NAME (symbolP));
1575 ignore_rest_of_line ();
1576 return;
1577 }
1578
1579 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
1580 {
1581 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1582 S_GET_NAME (symbolP),
1583 (long) S_GET_VALUE (symbolP),
1584 (long) size);
1585
1586 ignore_rest_of_line ();
1587 return;
1588 }
1589
99a814a1 1590 /* Allocate_bss. */
252b5132
RH		 1591 old_sec = now_seg;
1592 old_subsec = now_subseg;
1593 if (align)
1594 {
99a814a1 1595 /* Convert to a power of 2 alignment. */
252b5132
RH		 1596 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
1597 if (align != 1)
1598 {
1599 as_bad (_("Common alignment not a power of 2"));
1600 ignore_rest_of_line ();
1601 return;
1602 }
1603 }
1604 else
1605 align2 = 0;
1606
1607 record_alignment (bss_section, align2);
1608 subseg_set (bss_section, 0);
1609 if (align2)
1610 frag_align (align2, 0, 0);
1611 if (S_GET_SEGMENT (symbolP) == bss_section)
49309057
ILT		 1612 symbol_get_frag (symbolP)->fr_symbol = 0;
1613 symbol_set_frag (symbolP, frag_now);
252b5132
RH		 1614 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
1615 (char *) 0);
1616 *pfrag = 0;
1617 S_SET_SIZE (symbolP, size);
1618 S_SET_SEGMENT (symbolP, bss_section);
1619 subseg_set (old_sec, old_subsec);
1620 demand_empty_rest_of_line ();
1621}
1622
1623/* Validate any relocations emitted for -mrelocatable, possibly adding
1624 fixups for word relocations in writable segments, so we can adjust
1625 them at runtime. */
1626static void
1627ppc_elf_validate_fix (fixp, seg)
1628 fixS *fixp;
1629 segT seg;
1630{
1631 if (fixp->fx_done || fixp->fx_pcrel)
1632 return;
1633
1634 switch (shlib)
1635 {
1636 case SHLIB_NONE:
1637 case SHLIB_PIC:
1638 return;
1639
5d6f4f16 1640 case SHLIB_MRELOCATABLE:
252b5132
RH		 1641 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
1642 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
1643 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
1644 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
1645 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
1646 && fixp->fx_r_type != BFD_RELOC_32_BASEREL
1647 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
1648 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
1649 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
e138127a 1650 && (seg->flags & SEC_LOAD) != 0
252b5132
RH		 1651 && strcmp (segment_name (seg), ".got2") != 0
1652 && strcmp (segment_name (seg), ".dtors") != 0
1653 && strcmp (segment_name (seg), ".ctors") != 0
1654 && strcmp (segment_name (seg), ".fixup") != 0
252b5132
RH		 1655 && strcmp (segment_name (seg), ".gcc_except_table") != 0
1656 && strcmp (segment_name (seg), ".eh_frame") != 0
1657 && strcmp (segment_name (seg), ".ex_shared") != 0)
1658 {
1659 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
1660 || fixp->fx_r_type != BFD_RELOC_CTOR)
1661 {
1662 as_bad_where (fixp->fx_file, fixp->fx_line,
1663 _("Relocation cannot be done when using -mrelocatable"));
1664 }
1665 }
1666 return;
1667 }
1668}
0baf16f2
AM		 1669
1670#if BFD_DEFAULT_TARGET_SIZE == 64
1671/* Don't emit .TOC. symbol. */
1672int
1673ppc_elf_frob_symbol (sym)
1674 symbolS *sym;
1675{
1676 const char *name;
1677
1678 name = S_GET_NAME (sym);
1679 if (name != NULL && strcmp (name, ".TOC.") == 0)
1680 {
1681 S_CLEAR_EXTERNAL (sym);
1682 return 1;
1683 }
1684
1685 return 0;
1686}
1687#endif
252b5132
RH		 1688#endif /* OBJ_ELF */
1689\f
1690#ifdef TE_PE
1691
1692/*
99a814a1 1693 * Summary of parse_toc_entry.
252b5132
RH		 1694 *
1695 * in: Input_line_pointer points to the '[' in one of:
1696 *
1697 * [toc] [tocv] [toc32] [toc64]
1698 *
1699 * Anything else is an error of one kind or another.
1700 *
81d4177b 1701 * out:
252b5132
RH		 1702 * return value: success or failure
1703 * toc_kind: kind of toc reference
1704 * input_line_pointer:
1705 * success: first char after the ']'
1706 * failure: unchanged
1707 *
1708 * settings:
1709 *
1710 * [toc] - rv == success, toc_kind = default_toc
1711 * [tocv] - rv == success, toc_kind = data_in_toc
1712 * [toc32] - rv == success, toc_kind = must_be_32
1713 * [toc64] - rv == success, toc_kind = must_be_64
1714 *
1715 */
1716
81d4177b
KH		 1717enum toc_size_qualifier
1718{
252b5132
RH		 1719 default_toc, /* The toc cell constructed should be the system default size */
1720 data_in_toc, /* This is a direct reference to a toc cell */
1721 must_be_32, /* The toc cell constructed must be 32 bits wide */
1722 must_be_64 /* The toc cell constructed must be 64 bits wide */
1723};
1724
1725static int
99a814a1 1726parse_toc_entry (toc_kind)
252b5132
RH		 1727 enum toc_size_qualifier *toc_kind;
1728{
1729 char *start;
1730 char *toc_spec;
1731 char c;
1732 enum toc_size_qualifier t;
1733
99a814a1 1734 /* Save the input_line_pointer. */
252b5132
RH		 1735 start = input_line_pointer;
1736
99a814a1 1737 /* Skip over the '[' , and whitespace. */
252b5132
RH		 1738 ++input_line_pointer;
1739 SKIP_WHITESPACE ();
81d4177b 1740
99a814a1 1741 /* Find the spelling of the operand. */
252b5132
RH		 1742 toc_spec = input_line_pointer;
1743 c = get_symbol_end ();
1744
99a814a1 1745 if (strcmp (toc_spec, "toc") == 0)
252b5132
RH		 1746 {
1747 t = default_toc;
1748 }
99a814a1 1749 else if (strcmp (toc_spec, "tocv") == 0)
252b5132
RH		 1750 {
1751 t = data_in_toc;
1752 }
99a814a1 1753 else if (strcmp (toc_spec, "toc32") == 0)
252b5132
RH		 1754 {
1755 t = must_be_32;
1756 }
99a814a1 1757 else if (strcmp (toc_spec, "toc64") == 0)
252b5132
RH		 1758 {
1759 t = must_be_64;
1760 }
1761 else
1762 {
1763 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
99a814a1
AM		 1764 *input_line_pointer = c;
1765 input_line_pointer = start;
252b5132
RH		 1766 return 0;
1767 }
1768
99a814a1
AM		 1769 /* Now find the ']'. */
1770 *input_line_pointer = c;
252b5132 1771
81d4177b
KH		 1772 SKIP_WHITESPACE (); /* leading whitespace could be there. */
1773 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
252b5132
RH		 1774
1775 if (c != ']')
1776 {
1777 as_bad (_("syntax error: expected `]', found `%c'"), c);
99a814a1 1778 input_line_pointer = start;
252b5132
RH		 1779 return 0;
1780 }
1781
99a814a1 1782 *toc_kind = t;
252b5132
RH		 1783 return 1;
1784}
1785#endif
1786\f
1787
1788/* We need to keep a list of fixups. We can't simply generate them as
1789 we go, because that would require us to first create the frag, and
1790 that would screw up references to ``.''. */
1791
1792struct ppc_fixup
1793{
1794 expressionS exp;
1795 int opindex;
1796 bfd_reloc_code_real_type reloc;
1797};
1798
1799#define MAX_INSN_FIXUPS (5)
1800
1801/* This routine is called for each instruction to be assembled. */
1802
1803void
1804md_assemble (str)
1805 char *str;
1806{
1807 char *s;
1808 const struct powerpc_opcode *opcode;
1809 unsigned long insn;
1810 const unsigned char *opindex_ptr;
1811 int skip_optional;
1812 int need_paren;
1813 int next_opindex;
1814 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
1815 int fc;
1816 char *f;
1817 int i;
1818#ifdef OBJ_ELF
1819 bfd_reloc_code_real_type reloc;
1820#endif
1821
1822 /* Get the opcode. */
3882b010 1823 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
252b5132
RH		 1824 ;
1825 if (*s != '\0')
1826 *s++ = '\0';
1827
1828 /* Look up the opcode in the hash table. */
1829 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
1830 if (opcode == (const struct powerpc_opcode *) NULL)
1831 {
1832 const struct powerpc_macro *macro;
1833
1834 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
1835 if (macro == (const struct powerpc_macro *) NULL)
1836 as_bad (_("Unrecognized opcode: `%s'"), str);
1837 else
1838 ppc_macro (s, macro);
1839
1840 return;
1841 }
1842
1843 insn = opcode->opcode;
1844
1845 str = s;
3882b010 1846 while (ISSPACE (*str))
252b5132
RH		 1847 ++str;
1848
1849 /* PowerPC operands are just expressions. The only real issue is
1850 that a few operand types are optional. All cases which might use
1851 an optional operand separate the operands only with commas (in
1852 some cases parentheses are used, as in ``lwz 1,0(1)'' but such
1853 cases never have optional operands). There is never more than
1854 one optional operand for an instruction. So, before we start
1855 seriously parsing the operands, we check to see if we have an
1856 optional operand, and, if we do, we count the number of commas to
1857 see whether the operand should be omitted. */
1858 skip_optional = 0;
1859 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
1860 {
1861 const struct powerpc_operand *operand;
1862
1863 operand = &powerpc_operands[*opindex_ptr];
1864 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
1865 {
1866 unsigned int opcount;
1867
1868 /* There is an optional operand. Count the number of
1869 commas in the input line. */
1870 if (*str == '\0')
1871 opcount = 0;
1872 else
1873 {
1874 opcount = 1;
1875 s = str;
1876 while ((s = strchr (s, ',')) != (char *) NULL)
1877 {
1878 ++opcount;
1879 ++s;
1880 }
1881 }
1882
1883 /* If there are fewer operands in the line then are called
1884 for by the instruction, we want to skip the optional
1885 operand. */
1886 if (opcount < strlen (opcode->operands))
1887 skip_optional = 1;
1888
1889 break;
1890 }
1891 }
1892
1893 /* Gather the operands. */
1894 need_paren = 0;
1895 next_opindex = 0;
1896 fc = 0;
1897 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
1898 {
1899 const struct powerpc_operand *operand;
1900 const char *errmsg;
1901 char *hold;
1902 expressionS ex;
1903 char endc;
1904
1905 if (next_opindex == 0)
1906 operand = &powerpc_operands[*opindex_ptr];
1907 else
1908 {
1909 operand = &powerpc_operands[next_opindex];
1910 next_opindex = 0;
1911 }
1912
1913 errmsg = NULL;
1914
1915 /* If this is a fake operand, then we do not expect anything
1916 from the input. */
1917 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
1918 {
1919 insn = (*operand->insert) (insn, 0L, &errmsg);
1920 if (errmsg != (const char *) NULL)
1921 as_bad (errmsg);
1922 continue;
1923 }
1924
1925 /* If this is an optional operand, and we are skipping it, just
1926 insert a zero. */
1927 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
1928 && skip_optional)
1929 {
1930 if (operand->insert)
1931 {
1932 insn = (*operand->insert) (insn, 0L, &errmsg);
1933 if (errmsg != (const char *) NULL)
1934 as_bad (errmsg);
1935 }
1936 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
1937 next_opindex = *opindex_ptr + 1;
1938 continue;
1939 }
1940
1941 /* Gather the operand. */
1942 hold = input_line_pointer;
1943 input_line_pointer = str;
1944
1945#ifdef TE_PE
81d4177b 1946 if (*input_line_pointer == '[')
252b5132
RH		 1947 {
1948 /* We are expecting something like the second argument here:
99a814a1
AM		 1949 *
1950 * lwz r4,[toc].GS.0.static_int(rtoc)
1951 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
1952 * The argument following the `]' must be a symbol name, and the
1953 * register must be the toc register: 'rtoc' or '2'
1954 *
1955 * The effect is to 0 as the displacement field
1956 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
1957 * the appropriate variation) reloc against it based on the symbol.
1958 * The linker will build the toc, and insert the resolved toc offset.
1959 *
1960 * Note:
1961 * o The size of the toc entry is currently assumed to be
1962 * 32 bits. This should not be assumed to be a hard coded
1963 * number.
1964 * o In an effort to cope with a change from 32 to 64 bits,
1965 * there are also toc entries that are specified to be
1966 * either 32 or 64 bits:
1967 * lwz r4,[toc32].GS.0.static_int(rtoc)
1968 * lwz r4,[toc64].GS.0.static_int(rtoc)
1969 * These demand toc entries of the specified size, and the
1970 * instruction probably requires it.
1971 */
252b5132
RH		 1972
1973 int valid_toc;
1974 enum toc_size_qualifier toc_kind;
1975 bfd_reloc_code_real_type toc_reloc;
1976
99a814a1
AM		 1977 /* Go parse off the [tocXX] part. */
1978 valid_toc = parse_toc_entry (&toc_kind);
252b5132 1979
81d4177b 1980 if (!valid_toc)
252b5132 1981 {
99a814a1
AM		 1982 /* Note: message has already been issued.
1983 FIXME: what sort of recovery should we do?
1984 demand_rest_of_line (); return; ? */
252b5132
RH		 1985 }
1986
99a814a1
AM		 1987 /* Now get the symbol following the ']'. */
1988 expression (&ex);
252b5132
RH		 1989
1990 switch (toc_kind)
1991 {
1992 case default_toc:
99a814a1
AM		 1993 /* In this case, we may not have seen the symbol yet,
1994 since it is allowed to appear on a .extern or .globl
1995 or just be a label in the .data section. */
252b5132
RH		 1996 toc_reloc = BFD_RELOC_PPC_TOC16;
1997 break;
1998 case data_in_toc:
99a814a1
AM		 1999 /* 1. The symbol must be defined and either in the toc
2000 section, or a global.
2001 2. The reloc generated must have the TOCDEFN flag set
2002 in upper bit mess of the reloc type.
2003 FIXME: It's a little confusing what the tocv
2004 qualifier can be used for. At the very least, I've
2005 seen three uses, only one of which I'm sure I can
2006 explain. */
81d4177b
KH		 2007 if (ex.X_op == O_symbol)
2008 {
252b5132 2009 assert (ex.X_add_symbol != NULL);
fed9b18a
ILT		 2010 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2011 != tocdata_section)
252b5132 2012 {
99a814a1 2013 as_bad (_("[tocv] symbol is not a toc symbol"));
252b5132
RH		 2014 }
2015 }
2016
2017 toc_reloc = BFD_RELOC_PPC_TOC16;
2018 break;
2019 case must_be_32:
99a814a1
AM		 2020 /* FIXME: these next two specifically specify 32/64 bit
2021 toc entries. We don't support them today. Is this
2022 the right way to say that? */
252b5132
RH		 2023 toc_reloc = BFD_RELOC_UNUSED;
2024 as_bad (_("Unimplemented toc32 expression modifier"));
2025 break;
2026 case must_be_64:
99a814a1 2027 /* FIXME: see above. */
252b5132
RH		 2028 toc_reloc = BFD_RELOC_UNUSED;
2029 as_bad (_("Unimplemented toc64 expression modifier"));
2030 break;
2031 default:
bc805888 2032 fprintf (stderr,
99a814a1
AM		 2033 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2034 toc_kind);
bc805888 2035 abort ();
252b5132
RH		 2036 break;
2037 }
2038
2039 /* We need to generate a fixup for this expression. */
2040 if (fc >= MAX_INSN_FIXUPS)
2041 as_fatal (_("too many fixups"));
2042
2043 fixups[fc].reloc = toc_reloc;
2044 fixups[fc].exp = ex;
2045 fixups[fc].opindex = *opindex_ptr;
2046 ++fc;
2047
99a814a1
AM		 2048 /* Ok. We've set up the fixup for the instruction. Now make it
2049 look like the constant 0 was found here. */
252b5132
RH		 2050 ex.X_unsigned = 1;
2051 ex.X_op = O_constant;
2052 ex.X_add_number = 0;
2053 ex.X_add_symbol = NULL;
2054 ex.X_op_symbol = NULL;
2055 }
2056
2057 else
2058#endif /* TE_PE */
2059 {
2060 if (! register_name (&ex))
2061 {
2062 if ((operand->flags & PPC_OPERAND_CR) != 0)
2063 cr_operand = true;
2064 expression (&ex);
2065 cr_operand = false;
2066 }
2067 }
2068
2069 str = input_line_pointer;
2070 input_line_pointer = hold;
2071
2072 if (ex.X_op == O_illegal)
2073 as_bad (_("illegal operand"));
2074 else if (ex.X_op == O_absent)
2075 as_bad (_("missing operand"));
2076 else if (ex.X_op == O_register)
2077 {
2078 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2079 (char *) NULL, 0);
2080 }
2081 else if (ex.X_op == O_constant)
2082 {
2083#ifdef OBJ_ELF
81d4177b 2084 /* Allow @HA, @L, @H on constants. */
252b5132
RH		 2085 char *orig_str = str;
2086
2087 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2088 switch (reloc)
2089 {
2090 default:
2091 str = orig_str;
2092 break;
2093
2094 case BFD_RELOC_LO16:
2095 /* X_unsigned is the default, so if the user has done
0baf16f2
AM		 2096 something which cleared it, we always produce a
2097 signed value. */
2098 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
252b5132
RH		 2099 ex.X_add_number &= 0xffff;
2100 else
0baf16f2 2101 ex.X_add_number = SEX16 (ex.X_add_number);
252b5132
RH		 2102 break;
2103
2104 case BFD_RELOC_HI16:
0baf16f2
AM		 2105 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2106 ex.X_add_number = PPC_HI (ex.X_add_number);
2107 else
2108 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
252b5132
RH		 2109 break;
2110
2111 case BFD_RELOC_HI16_S:
0baf16f2
AM		 2112 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2113 ex.X_add_number = PPC_HA (ex.X_add_number);
2114 else
2115 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2116 break;
2117
2118#if BFD_DEFAULT_TARGET_SIZE == 64
2119 case BFD_RELOC_PPC64_HIGHER:
2120 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2121 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2122 else
2123 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2124 break;
2125
2126 case BFD_RELOC_PPC64_HIGHER_S:
2127 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2128 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2129 else
2130 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
252b5132 2131 break;
0baf16f2
AM		 2132
2133 case BFD_RELOC_PPC64_HIGHEST:
2134 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2135 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2136 else
2137 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2138 break;
2139
2140 case BFD_RELOC_PPC64_HIGHEST_S:
2141 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2142 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2143 else
2144 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2145 break;
2146#endif /* BFD_DEFAULT_TARGET_SIZE == 64 */
252b5132 2147 }
0baf16f2 2148#endif /* OBJ_ELF */
252b5132
RH		 2149 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2150 (char *) NULL, 0);
2151 }
2152#ifdef OBJ_ELF
2153 else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2154 {
99a814a1
AM		 2155 /* For the absolute forms of branches, convert the PC
2156 relative form back into the absolute. */
252b5132
RH		 2157 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2158 {
2159 switch (reloc)
2160 {
2161 case BFD_RELOC_PPC_B26:
2162 reloc = BFD_RELOC_PPC_BA26;
2163 break;
2164 case BFD_RELOC_PPC_B16:
2165 reloc = BFD_RELOC_PPC_BA16;
2166 break;
2167 case BFD_RELOC_PPC_B16_BRTAKEN:
2168 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2169 break;
2170 case BFD_RELOC_PPC_B16_BRNTAKEN:
2171 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2172 break;
2173 default:
2174 break;
2175 }
2176 }
2177
0baf16f2 2178 if (BFD_DEFAULT_TARGET_SIZE == 64
9c7977b3 2179 && ppc_size == PPC_OPCODE_64
0baf16f2
AM		 2180 && (operand->flags & PPC_OPERAND_DS) != 0)
2181 {
2182 switch (reloc)
2183 {
2184 case BFD_RELOC_16:
2185 reloc = BFD_RELOC_PPC64_ADDR16_DS;
2186 break;
2187 case BFD_RELOC_LO16:
2188 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
2189 break;
2190 case BFD_RELOC_16_GOTOFF:
2191 reloc = BFD_RELOC_PPC64_GOT16_DS;
2192 break;
2193 case BFD_RELOC_LO16_GOTOFF:
2194 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
2195 break;
2196 case BFD_RELOC_LO16_PLTOFF:
2197 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
2198 break;
2199 case BFD_RELOC_32_BASEREL:
2200 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
2201 break;
2202 case BFD_RELOC_LO16_BASEREL:
2203 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
2204 break;
2205 case BFD_RELOC_PPC_TOC16:
2206 reloc = BFD_RELOC_PPC64_TOC16_DS;
2207 break;
2208 case BFD_RELOC_PPC64_TOC16_LO:
2209 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
2210 break;
2211 case BFD_RELOC_PPC64_PLTGOT16:
2212 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
2213 break;
2214 case BFD_RELOC_PPC64_PLTGOT16_LO:
2215 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
2216 break;
2217 default:
2218 as_bad (_("unsupported relocation for DS offset field"));
2219 break;
2220 }
2221 }
2222
252b5132
RH		 2223 /* We need to generate a fixup for this expression. */
2224 if (fc >= MAX_INSN_FIXUPS)
2225 as_fatal (_("too many fixups"));
2226 fixups[fc].exp = ex;
2227 fixups[fc].opindex = 0;
2228 fixups[fc].reloc = reloc;
2229 ++fc;
2230 }
2231#endif /* OBJ_ELF */
2232
2233 else
2234 {
2235 /* We need to generate a fixup for this expression. */
2236 if (fc >= MAX_INSN_FIXUPS)
2237 as_fatal (_("too many fixups"));
2238 fixups[fc].exp = ex;
2239 fixups[fc].opindex = *opindex_ptr;
2240 fixups[fc].reloc = BFD_RELOC_UNUSED;
2241 ++fc;
2242 }
2243
2244 if (need_paren)
2245 {
2246 endc = ')';
2247 need_paren = 0;
2248 }
2249 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
2250 {
2251 endc = '(';
2252 need_paren = 1;
2253 }
2254 else
2255 endc = ',';
2256
2257 /* The call to expression should have advanced str past any
2258 whitespace. */
2259 if (*str != endc
2260 && (endc != ',' || *str != '\0'))
2261 {
2262 as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc);
2263 break;
2264 }
2265
2266 if (*str != '\0')
2267 ++str;
2268 }
2269
3882b010 2270 while (ISSPACE (*str))
252b5132
RH		 2271 ++str;
2272
2273 if (*str != '\0')
2274 as_bad (_("junk at end of line: `%s'"), str);
2275
2276 /* Write out the instruction. */
2277 f = frag_more (4);
2278 md_number_to_chars (f, insn, 4);
2279
5d6f4f16
GK		 2280#ifdef OBJ_ELF
2281 dwarf2_emit_insn (4);
2282#endif
2283
252b5132
RH		 2284 /* Create any fixups. At this point we do not use a
2285 bfd_reloc_code_real_type, but instead just use the
2286 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2287 handle fixups for any operand type, although that is admittedly
2288 not a very exciting feature. We pick a BFD reloc type in
2289 md_apply_fix. */
2290 for (i = 0; i < fc; i++)
2291 {
2292 const struct powerpc_operand *operand;
2293
2294 operand = &powerpc_operands[fixups[i].opindex];
2295 if (fixups[i].reloc != BFD_RELOC_UNUSED)
2296 {
99a814a1 2297 reloc_howto_type *reloc_howto;
252b5132
RH		 2298 int size;
2299 int offset;
2300 fixS *fixP;
2301
99a814a1 2302 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
252b5132
RH		 2303 if (!reloc_howto)
2304 abort ();
2305
2306 size = bfd_get_reloc_size (reloc_howto);
2307 offset = target_big_endian ? (4 - size) : 0;
2308
2309 if (size < 1 || size > 4)
bc805888 2310 abort ();
252b5132 2311
99a814a1
AM		 2312 fixP = fix_new_exp (frag_now,
2313 f - frag_now->fr_literal + offset,
2314 size,
2315 &fixups[i].exp,
2316 reloc_howto->pc_relative,
252b5132
RH		 2317 fixups[i].reloc);
2318
2319 /* Turn off complaints that the addend is too large for things like
2320 foo+100000@ha. */
2321 switch (fixups[i].reloc)
2322 {
2323 case BFD_RELOC_16_GOTOFF:
2324 case BFD_RELOC_PPC_TOC16:
2325 case BFD_RELOC_LO16:
2326 case BFD_RELOC_HI16:
2327 case BFD_RELOC_HI16_S:
0baf16f2
AM		 2328#ifdef OBJ_ELF
2329#if BFD_DEFAULT_TARGET_SIZE == 64
2330 case BFD_RELOC_PPC64_HIGHER:
2331 case BFD_RELOC_PPC64_HIGHER_S:
2332 case BFD_RELOC_PPC64_HIGHEST:
2333 case BFD_RELOC_PPC64_HIGHEST_S:
2334#endif
2335#endif
252b5132
RH		 2336 fixP->fx_no_overflow = 1;
2337 break;
2338 default:
2339 break;
2340 }
2341 }
2342 else
99a814a1
AM		 2343 fix_new_exp (frag_now,
2344 f - frag_now->fr_literal,
2345 4,
252b5132
RH		 2346 &fixups[i].exp,
2347 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
2348 ((bfd_reloc_code_real_type)
99a814a1 2349 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
252b5132
RH		 2350 }
2351}
2352
2353/* Handle a macro. Gather all the operands, transform them as
2354 described by the macro, and call md_assemble recursively. All the
2355 operands are separated by commas; we don't accept parentheses
2356 around operands here. */
2357
2358static void
2359ppc_macro (str, macro)
2360 char *str;
2361 const struct powerpc_macro *macro;
2362{
2363 char *operands[10];
2364 unsigned int count;
2365 char *s;
2366 unsigned int len;
2367 const char *format;
2368 int arg;
2369 char *send;
2370 char *complete;
2371
2372 /* Gather the users operands into the operands array. */
2373 count = 0;
2374 s = str;
2375 while (1)
2376 {
2377 if (count >= sizeof operands / sizeof operands[0])
2378 break;
2379 operands[count++] = s;
2380 s = strchr (s, ',');
2381 if (s == (char *) NULL)
2382 break;
2383 *s++ = '\0';
81d4177b 2384 }
252b5132
RH		 2385
2386 if (count != macro->operands)
2387 {
2388 as_bad (_("wrong number of operands"));
2389 return;
2390 }
2391
2392 /* Work out how large the string must be (the size is unbounded
2393 because it includes user input). */
2394 len = 0;
2395 format = macro->format;
2396 while (*format != '\0')
2397 {
2398 if (*format != '%')
2399 {
2400 ++len;
2401 ++format;
2402 }
2403 else
2404 {
2405 arg = strtol (format + 1, &send, 10);
2406 know (send != format && arg >= 0 && arg < count);
2407 len += strlen (operands[arg]);
2408 format = send;
2409 }
2410 }
2411
2412 /* Put the string together. */
2413 complete = s = (char *) alloca (len + 1);
2414 format = macro->format;
2415 while (*format != '\0')
2416 {
2417 if (*format != '%')
2418 *s++ = *format++;
2419 else
2420 {
2421 arg = strtol (format + 1, &send, 10);
2422 strcpy (s, operands[arg]);
2423 s += strlen (s);
2424 format = send;
2425 }
2426 }
2427 *s = '\0';
2428
2429 /* Assemble the constructed instruction. */
2430 md_assemble (complete);
81d4177b 2431}
252b5132
RH		 2432\f
2433#ifdef OBJ_ELF
99a814a1 2434/* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
252b5132
RH		 2435
2436int
2437ppc_section_letter (letter, ptr_msg)
2438 int letter;
2439 char **ptr_msg;
2440{
2441 if (letter == 'e')
2442 return SHF_EXCLUDE;
2443
9469ddf0 2444 *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S in string");
252b5132
RH		 2445 return 0;
2446}
2447
2448int
9de8d8f1
RH		 2449ppc_section_word (str, len)
2450 char *str;
2451 size_t len;
252b5132 2452{
9de8d8f1
RH		 2453 if (len == 7 && strncmp (str, "exclude", 7) == 0)
2454 return SHF_EXCLUDE;
252b5132 2455
9de8d8f1 2456 return -1;
252b5132
RH		 2457}
2458
2459int
9de8d8f1
RH		 2460ppc_section_type (str, len)
2461 char *str;
2462 size_t len;
252b5132 2463{
9de8d8f1
RH		 2464 if (len == 7 && strncmp (str, "ordered", 7) == 0)
2465 return SHT_ORDERED;
252b5132 2466
9de8d8f1 2467 return -1;
252b5132
RH		 2468}
2469
2470int
2471ppc_section_flags (flags, attr, type)
2472 int flags;
2473 int attr;
2474 int type;
2475{
2476 if (type == SHT_ORDERED)
2477 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
2478
2479 if (attr & SHF_EXCLUDE)
2480 flags |= SEC_EXCLUDE;
2481
2482 return flags;
2483}
2484#endif /* OBJ_ELF */
2485
2486\f
2487/* Pseudo-op handling. */
2488
2489/* The .byte pseudo-op. This is similar to the normal .byte
2490 pseudo-op, but it can also take a single ASCII string. */
2491
2492static void
2493ppc_byte (ignore)
92161534 2494 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 2495{
2496 if (*input_line_pointer != '\"')
2497 {
2498 cons (1);
2499 return;
2500 }
2501
2502 /* Gather characters. A real double quote is doubled. Unusual
2503 characters are not permitted. */
2504 ++input_line_pointer;
2505 while (1)
2506 {
2507 char c;
2508
2509 c = *input_line_pointer++;
2510
2511 if (c == '\"')
2512 {
2513 if (*input_line_pointer != '\"')
2514 break;
2515 ++input_line_pointer;
2516 }
2517
2518 FRAG_APPEND_1_CHAR (c);
2519 }
2520
2521 demand_empty_rest_of_line ();
2522}
2523\f
2524#ifdef OBJ_XCOFF
2525
2526/* XCOFF specific pseudo-op handling. */
2527
2528/* This is set if we are creating a .stabx symbol, since we don't want
2529 to handle symbol suffixes for such symbols. */
2530static boolean ppc_stab_symbol;
2531
2532/* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2533 symbols in the .bss segment as though they were local common
1ad63b2f
TR		 2534 symbols, and uses a different smclas. The native Aix 4.3.3 assember
2535 aligns .comm and .lcomm to 4 bytes. */
252b5132
RH		 2536
2537static void
2538ppc_comm (lcomm)
2539 int lcomm;
2540{
2541 asection *current_seg = now_seg;
2542 subsegT current_subseg = now_subseg;
2543 char *name;
2544 char endc;
2545 char *end_name;
2546 offsetT size;
2547 offsetT align;
2548 symbolS *lcomm_sym = NULL;
2549 symbolS *sym;
2550 char *pfrag;
2551
2552 name = input_line_pointer;
2553 endc = get_symbol_end ();
2554 end_name = input_line_pointer;
2555 *end_name = endc;
2556
2557 if (*input_line_pointer != ',')
2558 {
2559 as_bad (_("missing size"));
2560 ignore_rest_of_line ();
2561 return;
2562 }
2563 ++input_line_pointer;
2564
2565 size = get_absolute_expression ();
2566 if (size < 0)
2567 {
2568 as_bad (_("negative size"));
2569 ignore_rest_of_line ();
2570 return;
2571 }
2572
2573 if (! lcomm)
2574 {
2575 /* The third argument to .comm is the alignment. */
2576 if (*input_line_pointer != ',')
1ad63b2f 2577 align = 2;
252b5132
RH		 2578 else
2579 {
2580 ++input_line_pointer;
2581 align = get_absolute_expression ();
2582 if (align <= 0)
2583 {
2584 as_warn (_("ignoring bad alignment"));
1ad63b2f 2585 align = 2;
252b5132
RH		 2586 }
2587 }
2588 }
2589 else
2590 {
2591 char *lcomm_name;
2592 char lcomm_endc;
2593
1ad63b2f 2594 if (size <= 4)
252b5132
RH		 2595 align = 2;
2596 else
2597 align = 3;
2598
2599 /* The third argument to .lcomm appears to be the real local
2600 common symbol to create. References to the symbol named in
2601 the first argument are turned into references to the third
2602 argument. */
2603 if (*input_line_pointer != ',')
2604 {
2605 as_bad (_("missing real symbol name"));
2606 ignore_rest_of_line ();
2607 return;
2608 }
2609 ++input_line_pointer;
2610
2611 lcomm_name = input_line_pointer;
2612 lcomm_endc = get_symbol_end ();
81d4177b 2613
252b5132
RH		 2614 lcomm_sym = symbol_find_or_make (lcomm_name);
2615
2616 *input_line_pointer = lcomm_endc;
2617 }
2618
2619 *end_name = '\0';
2620 sym = symbol_find_or_make (name);
2621 *end_name = endc;
2622
2623 if (S_IS_DEFINED (sym)
2624 || S_GET_VALUE (sym) != 0)
2625 {
2626 as_bad (_("attempt to redefine symbol"));
2627 ignore_rest_of_line ();
2628 return;
2629 }
81d4177b 2630
252b5132 2631 record_alignment (bss_section, align);
81d4177b 2632
252b5132
RH		 2633 if (! lcomm
2634 || ! S_IS_DEFINED (lcomm_sym))
2635 {
2636 symbolS *def_sym;
2637 offsetT def_size;
2638
2639 if (! lcomm)
2640 {
2641 def_sym = sym;
2642 def_size = size;
2643 S_SET_EXTERNAL (sym);
2644 }
2645 else
2646 {
809ffe0d 2647 symbol_get_tc (lcomm_sym)->output = 1;
252b5132
RH		 2648 def_sym = lcomm_sym;
2649 def_size = 0;
2650 }
2651
2652 subseg_set (bss_section, 1);
2653 frag_align (align, 0, 0);
81d4177b 2654
809ffe0d 2655 symbol_set_frag (def_sym, frag_now);
252b5132
RH		 2656 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
2657 def_size, (char *) NULL);
2658 *pfrag = 0;
2659 S_SET_SEGMENT (def_sym, bss_section);
809ffe0d 2660 symbol_get_tc (def_sym)->align = align;
252b5132
RH		 2661 }
2662 else if (lcomm)
2663 {
2664 /* Align the size of lcomm_sym. */
809ffe0d
ILT		 2665 symbol_get_frag (lcomm_sym)->fr_offset =
2666 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
252b5132 2667 &~ ((1 << align) - 1));
809ffe0d
ILT		 2668 if (align > symbol_get_tc (lcomm_sym)->align)
2669 symbol_get_tc (lcomm_sym)->align = align;
252b5132
RH		 2670 }
2671
2672 if (lcomm)
2673 {
2674 /* Make sym an offset from lcomm_sym. */
2675 S_SET_SEGMENT (sym, bss_section);
809ffe0d
ILT		 2676 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
2677 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
2678 symbol_get_frag (lcomm_sym)->fr_offset += size;
252b5132
RH		 2679 }
2680
2681 subseg_set (current_seg, current_subseg);
2682
2683 demand_empty_rest_of_line ();
2684}
2685
2686/* The .csect pseudo-op. This switches us into a different
2687 subsegment. The first argument is a symbol whose value is the
2688 start of the .csect. In COFF, csect symbols get special aux
2689 entries defined by the x_csect field of union internal_auxent. The
2690 optional second argument is the alignment (the default is 2). */
2691
2692static void
2693ppc_csect (ignore)
5480ccf3 2694 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 2695{
2696 char *name;
2697 char endc;
2698 symbolS *sym;
2699
2700 name = input_line_pointer;
2701 endc = get_symbol_end ();
81d4177b 2702
252b5132
RH		 2703 sym = symbol_find_or_make (name);
2704
2705 *input_line_pointer = endc;
2706
2707 if (S_GET_NAME (sym)[0] == '\0')
2708 {
2709 /* An unnamed csect is assumed to be [PR]. */
809ffe0d 2710 symbol_get_tc (sym)->class = XMC_PR;
252b5132
RH		 2711 }
2712
2713 ppc_change_csect (sym);
2714
2715 if (*input_line_pointer == ',')
2716 {
2717 ++input_line_pointer;
809ffe0d 2718 symbol_get_tc (sym)->align = get_absolute_expression ();
252b5132
RH		 2719 }
2720
2721 demand_empty_rest_of_line ();
2722}
2723
2724/* Change to a different csect. */
2725
2726static void
2727ppc_change_csect (sym)
2728 symbolS *sym;
2729{
2730 if (S_IS_DEFINED (sym))
809ffe0d 2731 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
252b5132
RH		 2732 else
2733 {
2734 symbolS **list_ptr;
2735 int after_toc;
2736 int hold_chunksize;
2737 symbolS *list;
2738
2739 /* This is a new csect. We need to look at the symbol class to
2740 figure out whether it should go in the text section or the
2741 data section. */
2742 after_toc = 0;
809ffe0d 2743 switch (symbol_get_tc (sym)->class)
252b5132
RH		 2744 {
2745 case XMC_PR:
2746 case XMC_RO:
2747 case XMC_DB:
2748 case XMC_GL:
2749 case XMC_XO:
2750 case XMC_SV:
2751 case XMC_TI:
2752 case XMC_TB:
2753 S_SET_SEGMENT (sym, text_section);
809ffe0d 2754 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
252b5132
RH		 2755 ++ppc_text_subsegment;
2756 list_ptr = &ppc_text_csects;
2757 break;
2758 case XMC_RW:
2759 case XMC_TC0:
2760 case XMC_TC:
2761 case XMC_DS:
2762 case XMC_UA:
2763 case XMC_BS:
2764 case XMC_UC:
2765 if (ppc_toc_csect != NULL
809ffe0d
ILT		 2766 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
2767 == ppc_data_subsegment))
252b5132
RH		 2768 after_toc = 1;
2769 S_SET_SEGMENT (sym, data_section);
809ffe0d 2770 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
252b5132
RH		 2771 ++ppc_data_subsegment;
2772 list_ptr = &ppc_data_csects;
2773 break;
2774 default:
2775 abort ();
2776 }
2777
2778 /* We set the obstack chunk size to a small value before
99a814a1
AM		 2779 changing subsegments, so that we don't use a lot of memory
2780 space for what may be a small section. */
252b5132
RH		 2781 hold_chunksize = chunksize;
2782 chunksize = 64;
2783
809ffe0d
ILT		 2784 subseg_new (segment_name (S_GET_SEGMENT (sym)),
2785 symbol_get_tc (sym)->subseg);
252b5132
RH		 2786
2787 chunksize = hold_chunksize;
2788
2789 if (after_toc)
2790 ppc_after_toc_frag = frag_now;
2791
809ffe0d 2792 symbol_set_frag (sym, frag_now);
252b5132
RH		 2793 S_SET_VALUE (sym, (valueT) frag_now_fix ());
2794
7f6d05e8 2795 symbol_get_tc (sym)->align = (ppc_xcoff64) ? 3 : 2;
809ffe0d
ILT		 2796 symbol_get_tc (sym)->output = 1;
2797 symbol_get_tc (sym)->within = sym;
81d4177b 2798
252b5132 2799 for (list = *list_ptr;
809ffe0d
ILT		 2800 symbol_get_tc (list)->next != (symbolS *) NULL;
2801 list = symbol_get_tc (list)->next)
252b5132 2802 ;
809ffe0d 2803 symbol_get_tc (list)->next = sym;
81d4177b 2804
252b5132 2805 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
809ffe0d
ILT		 2806 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
2807 &symbol_lastP);
252b5132
RH		 2808 }
2809
2810 ppc_current_csect = sym;
2811}
2812
2813/* This function handles the .text and .data pseudo-ops. These
2814 pseudo-ops aren't really used by XCOFF; we implement them for the
2815 convenience of people who aren't used to XCOFF. */
2816
2817static void
2818ppc_section (type)
2819 int type;
2820{
2821 const char *name;
2822 symbolS *sym;
2823
2824 if (type == 't')
2825 name = ".text[PR]";
2826 else if (type == 'd')
2827 name = ".data[RW]";
2828 else
2829 abort ();
2830
2831 sym = symbol_find_or_make (name);
2832
2833 ppc_change_csect (sym);
2834
2835 demand_empty_rest_of_line ();
2836}
2837
2838/* This function handles the .section pseudo-op. This is mostly to
2839 give an error, since XCOFF only supports .text, .data and .bss, but
2840 we do permit the user to name the text or data section. */
2841
2842static void
2843ppc_named_section (ignore)
5480ccf3 2844 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 2845{
2846 char *user_name;
2847 const char *real_name;
2848 char c;
2849 symbolS *sym;
2850
2851 user_name = input_line_pointer;
2852 c = get_symbol_end ();
2853
2854 if (strcmp (user_name, ".text") == 0)
2855 real_name = ".text[PR]";
2856 else if (strcmp (user_name, ".data") == 0)
2857 real_name = ".data[RW]";
2858 else
2859 {
2860 as_bad (_("The XCOFF file format does not support arbitrary sections"));
2861 *input_line_pointer = c;
2862 ignore_rest_of_line ();
2863 return;
2864 }
2865
2866 *input_line_pointer = c;
2867
2868 sym = symbol_find_or_make (real_name);
2869
2870 ppc_change_csect (sym);
2871
2872 demand_empty_rest_of_line ();
2873}
2874
2875/* The .extern pseudo-op. We create an undefined symbol. */
2876
2877static void
2878ppc_extern (ignore)
5480ccf3 2879 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 2880{
2881 char *name;
2882 char endc;
2883
2884 name = input_line_pointer;
2885 endc = get_symbol_end ();
2886
2887 (void) symbol_find_or_make (name);
2888
2889 *input_line_pointer = endc;
2890
2891 demand_empty_rest_of_line ();
2892}
2893
2894/* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
2895
2896static void
2897ppc_lglobl (ignore)
5480ccf3 2898 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 2899{
2900 char *name;
2901 char endc;
2902 symbolS *sym;
2903
2904 name = input_line_pointer;
2905 endc = get_symbol_end ();
2906
2907 sym = symbol_find_or_make (name);
2908
2909 *input_line_pointer = endc;
2910
809ffe0d 2911 symbol_get_tc (sym)->output = 1;
252b5132
RH		 2912
2913 demand_empty_rest_of_line ();
2914}
2915
2916/* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
2917 although I don't know why it bothers. */
2918
2919static void
2920ppc_rename (ignore)
5480ccf3 2921 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 2922{
2923 char *name;
2924 char endc;
2925 symbolS *sym;
2926 int len;
2927
2928 name = input_line_pointer;
2929 endc = get_symbol_end ();
2930
2931 sym = symbol_find_or_make (name);
2932
2933 *input_line_pointer = endc;
2934
2935 if (*input_line_pointer != ',')
2936 {
2937 as_bad (_("missing rename string"));
2938 ignore_rest_of_line ();
2939 return;
2940 }
2941 ++input_line_pointer;
2942
809ffe0d 2943 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
252b5132
RH		 2944
2945 demand_empty_rest_of_line ();
2946}
2947
2948/* The .stabx pseudo-op. This is similar to a normal .stabs
2949 pseudo-op, but slightly different. A sample is
2950 .stabx "main:F-1",.main,142,0
2951 The first argument is the symbol name to create. The second is the
2952 value, and the third is the storage class. The fourth seems to be
2953 always zero, and I am assuming it is the type. */
2954
2955static void
2956ppc_stabx (ignore)
5480ccf3 2957 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 2958{
2959 char *name;
2960 int len;
2961 symbolS *sym;
2962 expressionS exp;
2963
2964 name = demand_copy_C_string (&len);
2965
2966 if (*input_line_pointer != ',')
2967 {
2968 as_bad (_("missing value"));
2969 return;
2970 }
2971 ++input_line_pointer;
2972
2973 ppc_stab_symbol = true;
2974 sym = symbol_make (name);
2975 ppc_stab_symbol = false;
2976
809ffe0d 2977 symbol_get_tc (sym)->real_name = name;
252b5132
RH		 2978
2979 (void) expression (&exp);
2980
2981 switch (exp.X_op)
2982 {
2983 case O_illegal:
2984 case O_absent:
2985 case O_big:
2986 as_bad (_("illegal .stabx expression; zero assumed"));
2987 exp.X_add_number = 0;
2988 /* Fall through. */
2989 case O_constant:
2990 S_SET_VALUE (sym, (valueT) exp.X_add_number);
809ffe0d 2991 symbol_set_frag (sym, &zero_address_frag);
252b5132
RH		 2992 break;
2993
2994 case O_symbol:
2995 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
809ffe0d 2996 symbol_set_value_expression (sym, &exp);
252b5132
RH		 2997 else
2998 {
2999 S_SET_VALUE (sym,
3000 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
809ffe0d 3001 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
252b5132
RH		 3002 }
3003 break;
3004
3005 default:
3006 /* The value is some complex expression. This will probably
99a814a1
AM		 3007 fail at some later point, but this is probably the right
3008 thing to do here. */
809ffe0d 3009 symbol_set_value_expression (sym, &exp);
252b5132
RH		 3010 break;
3011 }
3012
3013 S_SET_SEGMENT (sym, ppc_coff_debug_section);
809ffe0d 3014 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
252b5132
RH		 3015
3016 if (*input_line_pointer != ',')
3017 {
3018 as_bad (_("missing class"));
3019 return;
3020 }
3021 ++input_line_pointer;
3022
3023 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
3024
3025 if (*input_line_pointer != ',')
3026 {
3027 as_bad (_("missing type"));
3028 return;
3029 }
3030 ++input_line_pointer;
3031
3032 S_SET_DATA_TYPE (sym, get_absolute_expression ());
3033
809ffe0d 3034 symbol_get_tc (sym)->output = 1;
252b5132 3035
6877bb43 3036 if (S_GET_STORAGE_CLASS (sym) == C_STSYM) {
99a814a1 3037
809ffe0d 3038 symbol_get_tc (sym)->within = ppc_current_block;
252b5132 3039
41ea10b1 3040 /* In this case :
99a814a1 3041
41ea10b1
TR		 3042 .bs name
3043 .stabx "z",arrays_,133,0
3044 .es
99a814a1 3045
41ea10b1 3046 .comm arrays_,13768,3
99a814a1 3047
41ea10b1
TR		 3048 resolve_symbol_value will copy the exp's "within" into sym's when the
3049 offset is 0. Since this seems to be corner case problem,
3050 only do the correction for storage class C_STSYM. A better solution
0baf16f2 3051 would be to have the tc field updated in ppc_symbol_new_hook. */
99a814a1
AM		 3052
3053 if (exp.X_op == O_symbol)
41ea10b1
TR		 3054 {
3055 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
3056 }
6877bb43 3057 }
99a814a1 3058
252b5132
RH		 3059 if (exp.X_op != O_symbol
3060 || ! S_IS_EXTERNAL (exp.X_add_symbol)
3061 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
3062 ppc_frob_label (sym);
3063 else
3064 {
3065 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3066 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
809ffe0d
ILT		 3067 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
3068 symbol_get_tc (ppc_current_csect)->within = sym;
252b5132
RH		 3069 }
3070
3071 demand_empty_rest_of_line ();
3072}
3073
3074/* The .function pseudo-op. This takes several arguments. The first
3075 argument seems to be the external name of the symbol. The second
3076 argment seems to be the label for the start of the function. gcc
3077 uses the same name for both. I have no idea what the third and
3078 fourth arguments are meant to be. The optional fifth argument is
3079 an expression for the size of the function. In COFF this symbol
3080 gets an aux entry like that used for a csect. */
3081
3082static void
3083ppc_function (ignore)
5480ccf3 3084 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3085{
3086 char *name;
3087 char endc;
3088 char *s;
3089 symbolS *ext_sym;
3090 symbolS *lab_sym;
3091
3092 name = input_line_pointer;
3093 endc = get_symbol_end ();
3094
3095 /* Ignore any [PR] suffix. */
3096 name = ppc_canonicalize_symbol_name (name);
3097 s = strchr (name, '[');
3098 if (s != (char *) NULL
3099 && strcmp (s + 1, "PR]") == 0)
3100 *s = '\0';
3101
3102 ext_sym = symbol_find_or_make (name);
3103
3104 *input_line_pointer = endc;
3105
3106 if (*input_line_pointer != ',')
3107 {
3108 as_bad (_("missing symbol name"));
3109 ignore_rest_of_line ();
3110 return;
3111 }
3112 ++input_line_pointer;
3113
3114 name = input_line_pointer;
3115 endc = get_symbol_end ();
3116
3117 lab_sym = symbol_find_or_make (name);
3118
3119 *input_line_pointer = endc;
3120
3121 if (ext_sym != lab_sym)
3122 {
809ffe0d
ILT		 3123 expressionS exp;
3124
3125 exp.X_op = O_symbol;
3126 exp.X_add_symbol = lab_sym;
3127 exp.X_op_symbol = NULL;
3128 exp.X_add_number = 0;
3129 exp.X_unsigned = 0;
3130 symbol_set_value_expression (ext_sym, &exp);
252b5132
RH		 3131 }
3132
809ffe0d
ILT		 3133 if (symbol_get_tc (ext_sym)->class == -1)
3134 symbol_get_tc (ext_sym)->class = XMC_PR;
3135 symbol_get_tc (ext_sym)->output = 1;
252b5132
RH		 3136
3137 if (*input_line_pointer == ',')
3138 {
3139 expressionS ignore;
3140
3141 /* Ignore the third argument. */
3142 ++input_line_pointer;
3143 expression (&ignore);
3144 if (*input_line_pointer == ',')
3145 {
3146 /* Ignore the fourth argument. */
3147 ++input_line_pointer;
3148 expression (&ignore);
3149 if (*input_line_pointer == ',')
3150 {
3151 /* The fifth argument is the function size. */
3152 ++input_line_pointer;
809ffe0d
ILT		 3153 symbol_get_tc (ext_sym)->size = symbol_new ("L0\001",
3154 absolute_section,
3155 (valueT) 0,
3156 &zero_address_frag);
3157 pseudo_set (symbol_get_tc (ext_sym)->size);
252b5132
RH		 3158 }
3159 }
3160 }
3161
3162 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
3163 SF_SET_FUNCTION (ext_sym);
3164 SF_SET_PROCESS (ext_sym);
3165 coff_add_linesym (ext_sym);
3166
3167 demand_empty_rest_of_line ();
3168}
3169
3170/* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3171 ".bf". */
3172
3173static void
3174ppc_bf (ignore)
5480ccf3 3175 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3176{
3177 symbolS *sym;
3178
3179 sym = symbol_make (".bf");
3180 S_SET_SEGMENT (sym, text_section);
809ffe0d 3181 symbol_set_frag (sym, frag_now);
252b5132
RH		 3182 S_SET_VALUE (sym, frag_now_fix ());
3183 S_SET_STORAGE_CLASS (sym, C_FCN);
3184
3185 coff_line_base = get_absolute_expression ();
3186
3187 S_SET_NUMBER_AUXILIARY (sym, 1);
3188 SA_SET_SYM_LNNO (sym, coff_line_base);
3189
809ffe0d 3190 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3191
3192 ppc_frob_label (sym);
3193
3194 demand_empty_rest_of_line ();
3195}
3196
3197/* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3198 ".ef", except that the line number is absolute, not relative to the
3199 most recent ".bf" symbol. */
3200
3201static void
3202ppc_ef (ignore)
5480ccf3 3203 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3204{
3205 symbolS *sym;
3206
3207 sym = symbol_make (".ef");
3208 S_SET_SEGMENT (sym, text_section);
809ffe0d 3209 symbol_set_frag (sym, frag_now);
252b5132
RH		 3210 S_SET_VALUE (sym, frag_now_fix ());
3211 S_SET_STORAGE_CLASS (sym, C_FCN);
3212 S_SET_NUMBER_AUXILIARY (sym, 1);
3213 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
809ffe0d 3214 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3215
3216 ppc_frob_label (sym);
3217
3218 demand_empty_rest_of_line ();
3219}
3220
3221/* The .bi and .ei pseudo-ops. These take a string argument and
3222 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3223 the symbol list. */
3224
3225static void
3226ppc_biei (ei)
3227 int ei;
3228{
3229 static symbolS *last_biei;
3230
3231 char *name;
3232 int len;
3233 symbolS *sym;
3234 symbolS *look;
3235
3236 name = demand_copy_C_string (&len);
3237
3238 /* The value of these symbols is actually file offset. Here we set
3239 the value to the index into the line number entries. In
3240 ppc_frob_symbols we set the fix_line field, which will cause BFD
3241 to do the right thing. */
3242
3243 sym = symbol_make (name);
3244 /* obj-coff.c currently only handles line numbers correctly in the
3245 .text section. */
3246 S_SET_SEGMENT (sym, text_section);
3247 S_SET_VALUE (sym, coff_n_line_nos);
809ffe0d 3248 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
252b5132
RH		 3249
3250 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
809ffe0d 3251 symbol_get_tc (sym)->output = 1;
81d4177b 3252
252b5132
RH		 3253 for (look = last_biei ? last_biei : symbol_rootP;
3254 (look != (symbolS *) NULL
3255 && (S_GET_STORAGE_CLASS (look) == C_FILE
3256 || S_GET_STORAGE_CLASS (look) == C_BINCL
3257 || S_GET_STORAGE_CLASS (look) == C_EINCL));
3258 look = symbol_next (look))
3259 ;
3260 if (look != (symbolS *) NULL)
3261 {
3262 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3263 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
3264 last_biei = sym;
3265 }
3266
3267 demand_empty_rest_of_line ();
3268}
3269
3270/* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3271 There is one argument, which is a csect symbol. The value of the
3272 .bs symbol is the index of this csect symbol. */
3273
3274static void
3275ppc_bs (ignore)
5480ccf3 3276 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3277{
3278 char *name;
3279 char endc;
3280 symbolS *csect;
3281 symbolS *sym;
3282
3283 if (ppc_current_block != NULL)
3284 as_bad (_("nested .bs blocks"));
3285
3286 name = input_line_pointer;
3287 endc = get_symbol_end ();
3288
3289 csect = symbol_find_or_make (name);
3290
3291 *input_line_pointer = endc;
3292
3293 sym = symbol_make (".bs");
3294 S_SET_SEGMENT (sym, now_seg);
3295 S_SET_STORAGE_CLASS (sym, C_BSTAT);
809ffe0d
ILT		 3296 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3297 symbol_get_tc (sym)->output = 1;
252b5132 3298
809ffe0d 3299 symbol_get_tc (sym)->within = csect;
252b5132
RH		 3300
3301 ppc_frob_label (sym);
3302
3303 ppc_current_block = sym;
3304
3305 demand_empty_rest_of_line ();
3306}
3307
3308/* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3309
3310static void
3311ppc_es (ignore)
5480ccf3 3312 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3313{
3314 symbolS *sym;
3315
3316 if (ppc_current_block == NULL)
3317 as_bad (_(".es without preceding .bs"));
3318
3319 sym = symbol_make (".es");
3320 S_SET_SEGMENT (sym, now_seg);
3321 S_SET_STORAGE_CLASS (sym, C_ESTAT);
809ffe0d
ILT		 3322 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3323 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3324
3325 ppc_frob_label (sym);
3326
3327 ppc_current_block = NULL;
3328
3329 demand_empty_rest_of_line ();
3330}
3331
3332/* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3333 line number. */
3334
3335static void
3336ppc_bb (ignore)
5480ccf3 3337 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3338{
3339 symbolS *sym;
3340
3341 sym = symbol_make (".bb");
3342 S_SET_SEGMENT (sym, text_section);
809ffe0d 3343 symbol_set_frag (sym, frag_now);
252b5132
RH		 3344 S_SET_VALUE (sym, frag_now_fix ());
3345 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3346
3347 S_SET_NUMBER_AUXILIARY (sym, 1);
3348 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3349
809ffe0d 3350 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3351
3352 SF_SET_PROCESS (sym);
3353
3354 ppc_frob_label (sym);
3355
3356 demand_empty_rest_of_line ();
3357}
3358
3359/* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3360 line number. */
3361
3362static void
3363ppc_eb (ignore)
5480ccf3 3364 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3365{
3366 symbolS *sym;
3367
3368 sym = symbol_make (".eb");
3369 S_SET_SEGMENT (sym, text_section);
809ffe0d 3370 symbol_set_frag (sym, frag_now);
252b5132
RH		 3371 S_SET_VALUE (sym, frag_now_fix ());
3372 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3373 S_SET_NUMBER_AUXILIARY (sym, 1);
3374 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
809ffe0d 3375 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3376
3377 SF_SET_PROCESS (sym);
3378
3379 ppc_frob_label (sym);
3380
3381 demand_empty_rest_of_line ();
3382}
3383
3384/* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3385 specified name. */
3386
3387static void
3388ppc_bc (ignore)
5480ccf3 3389 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3390{
3391 char *name;
3392 int len;
3393 symbolS *sym;
3394
3395 name = demand_copy_C_string (&len);
3396 sym = symbol_make (name);
3397 S_SET_SEGMENT (sym, ppc_coff_debug_section);
809ffe0d 3398 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
252b5132
RH		 3399 S_SET_STORAGE_CLASS (sym, C_BCOMM);
3400 S_SET_VALUE (sym, 0);
809ffe0d 3401 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3402
3403 ppc_frob_label (sym);
3404
3405 demand_empty_rest_of_line ();
3406}
3407
3408/* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3409
3410static void
3411ppc_ec (ignore)
5480ccf3 3412 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3413{
3414 symbolS *sym;
3415
3416 sym = symbol_make (".ec");
3417 S_SET_SEGMENT (sym, ppc_coff_debug_section);
809ffe0d 3418 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
252b5132
RH		 3419 S_SET_STORAGE_CLASS (sym, C_ECOMM);
3420 S_SET_VALUE (sym, 0);
809ffe0d 3421 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3422
3423 ppc_frob_label (sym);
3424
3425 demand_empty_rest_of_line ();
3426}
3427
3428/* The .toc pseudo-op. Switch to the .toc subsegment. */
3429
3430static void
3431ppc_toc (ignore)
5480ccf3 3432 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3433{
3434 if (ppc_toc_csect != (symbolS *) NULL)
809ffe0d 3435 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
252b5132
RH		 3436 else
3437 {
3438 subsegT subseg;
3439 symbolS *sym;
3440 symbolS *list;
81d4177b 3441
252b5132
RH		 3442 subseg = ppc_data_subsegment;
3443 ++ppc_data_subsegment;
3444
3445 subseg_new (segment_name (data_section), subseg);
3446 ppc_toc_frag = frag_now;
3447
3448 sym = symbol_find_or_make ("TOC[TC0]");
809ffe0d 3449 symbol_set_frag (sym, frag_now);
252b5132
RH		 3450 S_SET_SEGMENT (sym, data_section);
3451 S_SET_VALUE (sym, (valueT) frag_now_fix ());
809ffe0d
ILT		 3452 symbol_get_tc (sym)->subseg = subseg;
3453 symbol_get_tc (sym)->output = 1;
3454 symbol_get_tc (sym)->within = sym;
252b5132
RH		 3455
3456 ppc_toc_csect = sym;
81d4177b 3457
252b5132 3458 for (list = ppc_data_csects;
809ffe0d
ILT		 3459 symbol_get_tc (list)->next != (symbolS *) NULL;
3460 list = symbol_get_tc (list)->next)
252b5132 3461 ;
809ffe0d 3462 symbol_get_tc (list)->next = sym;
252b5132
RH		 3463
3464 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
809ffe0d
ILT		 3465 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3466 &symbol_lastP);
252b5132
RH		 3467 }
3468
3469 ppc_current_csect = ppc_toc_csect;
3470
3471 demand_empty_rest_of_line ();
3472}
3473
3474/* The AIX assembler automatically aligns the operands of a .long or
3475 .short pseudo-op, and we want to be compatible. */
3476
3477static void
3478ppc_xcoff_cons (log_size)
3479 int log_size;
3480{
3481 frag_align (log_size, 0, 0);
3482 record_alignment (now_seg, log_size);
3483 cons (1 << log_size);
3484}
3485
3486static void
3487ppc_vbyte (dummy)
5480ccf3 3488 int dummy ATTRIBUTE_UNUSED;
252b5132
RH		 3489{
3490 expressionS exp;
3491 int byte_count;
3492
3493 (void) expression (&exp);
3494
3495 if (exp.X_op != O_constant)
3496 {
3497 as_bad (_("non-constant byte count"));
3498 return;
3499 }
3500
3501 byte_count = exp.X_add_number;
3502
3503 if (*input_line_pointer != ',')
3504 {
3505 as_bad (_("missing value"));
3506 return;
3507 }
3508
3509 ++input_line_pointer;
3510 cons (byte_count);
3511}
3512
3513#endif /* OBJ_XCOFF */
0baf16f2 3514#if defined (OBJ_XCOFF) || defined (OBJ_ELF)
252b5132
RH		 3515\f
3516/* The .tc pseudo-op. This is used when generating either XCOFF or
3517 ELF. This takes two or more arguments.
3518
3519 When generating XCOFF output, the first argument is the name to
3520 give to this location in the toc; this will be a symbol with class
0baf16f2 3521 TC. The rest of the arguments are N-byte values to actually put at
252b5132 3522 this location in the TOC; often there is just one more argument, a
0baf16f2
AM		 3523 relocateable symbol reference. The size of the value to store
3524 depends on target word size. A 32-bit target uses 4-byte values, a
3525 64-bit target uses 8-byte values.
252b5132
RH		 3526
3527 When not generating XCOFF output, the arguments are the same, but
3528 the first argument is simply ignored. */
3529
3530static void
3531ppc_tc (ignore)
92161534 3532 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3533{
3534#ifdef OBJ_XCOFF
3535
3536 /* Define the TOC symbol name. */
3537 {
3538 char *name;
3539 char endc;
3540 symbolS *sym;
3541
3542 if (ppc_toc_csect == (symbolS *) NULL
3543 || ppc_toc_csect != ppc_current_csect)
3544 {
3545 as_bad (_(".tc not in .toc section"));
3546 ignore_rest_of_line ();
3547 return;
3548 }
3549
3550 name = input_line_pointer;
3551 endc = get_symbol_end ();
3552
3553 sym = symbol_find_or_make (name);
3554
3555 *input_line_pointer = endc;
3556
3557 if (S_IS_DEFINED (sym))
3558 {
3559 symbolS *label;
3560
809ffe0d
ILT		 3561 label = symbol_get_tc (ppc_current_csect)->within;
3562 if (symbol_get_tc (label)->class != XMC_TC0)
252b5132
RH		 3563 {
3564 as_bad (_(".tc with no label"));
3565 ignore_rest_of_line ();
3566 return;
3567 }
3568
3569 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
809ffe0d 3570 symbol_set_frag (label, symbol_get_frag (sym));
252b5132
RH		 3571 S_SET_VALUE (label, S_GET_VALUE (sym));
3572
3573 while (! is_end_of_line[(unsigned char) *input_line_pointer])
3574 ++input_line_pointer;
3575
3576 return;
3577 }
3578
3579 S_SET_SEGMENT (sym, now_seg);
809ffe0d 3580 symbol_set_frag (sym, frag_now);
252b5132 3581 S_SET_VALUE (sym, (valueT) frag_now_fix ());
809ffe0d
ILT		 3582 symbol_get_tc (sym)->class = XMC_TC;
3583 symbol_get_tc (sym)->output = 1;
252b5132
RH		 3584
3585 ppc_frob_label (sym);
3586 }
3587
0baf16f2
AM		 3588#endif /* OBJ_XCOFF */
3589#ifdef OBJ_ELF
9c7977b3 3590 int align;
252b5132
RH		 3591
3592 /* Skip the TOC symbol name. */
3593 while (is_part_of_name (*input_line_pointer)
3594 || *input_line_pointer == '['
3595 || *input_line_pointer == ']'
3596 || *input_line_pointer == '{'
3597 || *input_line_pointer == '}')
3598 ++input_line_pointer;
3599
0baf16f2 3600 /* Align to a four/eight byte boundary. */
9c7977b3
AM		 3601 align = BFD_DEFAULT_TARGET_SIZE == 64 && ppc_size == PPC_OPCODE_64 ? 3 : 2;
3602 frag_align (align, 0, 0);
3603 record_alignment (now_seg, align);
0baf16f2 3604#endif /* OBJ_ELF */
252b5132
RH		 3605
3606 if (*input_line_pointer != ',')
3607 demand_empty_rest_of_line ();
3608 else
3609 {
3610 ++input_line_pointer;
7f6d05e8 3611 cons ((ppc_size == PPC_OPCODE_64) ? 8 : 4);
252b5132
RH		 3612 }
3613}
0baf16f2
AM		 3614
3615/* Pseudo-op .machine. */
3616/* FIXME: `.machine' is a nop for the moment. */
3617
3618static void
3619ppc_machine (ignore)
3620 int ignore ATTRIBUTE_UNUSED;
3621{
3622 discard_rest_of_line ();
3623}
3624
3625/* See whether a symbol is in the TOC section. */
3626
3627static int
3628ppc_is_toc_sym (sym)
3629 symbolS *sym;
3630{
3631#ifdef OBJ_XCOFF
3632 return symbol_get_tc (sym)->class == XMC_TC;
3633#endif
3634#ifdef OBJ_ELF
3635 const char *sname = segment_name (S_GET_SEGMENT (sym));
9c7977b3 3636 if (BFD_DEFAULT_TARGET_SIZE == 64 && ppc_size == PPC_OPCODE_64)
0baf16f2
AM		 3637 return strcmp (sname, ".toc") == 0;
3638 else
3639 return strcmp (sname, ".got") == 0;
3640#endif
3641}
3642#endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
252b5132
RH		 3643\f
3644#ifdef TE_PE
3645
99a814a1 3646/* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
252b5132
RH		 3647
3648/* Set the current section. */
3649static void
3650ppc_set_current_section (new)
3651 segT new;
3652{
3653 ppc_previous_section = ppc_current_section;
3654 ppc_current_section = new;
3655}
3656
3657/* pseudo-op: .previous
3658 behaviour: toggles the current section with the previous section.
3659 errors: None
99a814a1
AM		 3660 warnings: "No previous section" */
3661
252b5132 3662static void
99a814a1 3663ppc_previous (ignore)
5480ccf3 3664 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3665{
3666 symbolS *tmp;
3667
81d4177b 3668 if (ppc_previous_section == NULL)
252b5132 3669 {
99a814a1 3670 as_warn (_("No previous section to return to. Directive ignored."));
252b5132
RH		 3671 return;
3672 }
3673
99a814a1 3674 subseg_set (ppc_previous_section, 0);
252b5132 3675
99a814a1 3676 ppc_set_current_section (ppc_previous_section);
252b5132
RH		 3677}
3678
3679/* pseudo-op: .pdata
3680 behaviour: predefined read only data section
3681 double word aligned
3682 errors: None
3683 warnings: None
3684 initial: .section .pdata "adr3"
3685 a - don't know -- maybe a misprint
3686 d - initialized data
3687 r - readable
3688 3 - double word aligned (that would be 4 byte boundary)
3689
3690 commentary:
3691 Tag index tables (also known as the function table) for exception
99a814a1 3692 handling, debugging, etc. */
252b5132 3693
252b5132 3694static void
99a814a1 3695ppc_pdata (ignore)
5480ccf3 3696 int ignore ATTRIBUTE_UNUSED;
252b5132 3697{
81d4177b 3698 if (pdata_section == 0)
252b5132
RH		 3699 {
3700 pdata_section = subseg_new (".pdata", 0);
81d4177b 3701
252b5132
RH		 3702 bfd_set_section_flags (stdoutput, pdata_section,
3703 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
3704 | SEC_READONLY | SEC_DATA ));
81d4177b 3705
252b5132
RH		 3706 bfd_set_section_alignment (stdoutput, pdata_section, 2);
3707 }
3708 else
3709 {
99a814a1 3710 pdata_section = subseg_new (".pdata", 0);
252b5132 3711 }
99a814a1 3712 ppc_set_current_section (pdata_section);
252b5132
RH		 3713}
3714
3715/* pseudo-op: .ydata
3716 behaviour: predefined read only data section
3717 double word aligned
3718 errors: None
3719 warnings: None
3720 initial: .section .ydata "drw3"
3721 a - don't know -- maybe a misprint
3722 d - initialized data
3723 r - readable
3724 3 - double word aligned (that would be 4 byte boundary)
3725 commentary:
3726 Tag tables (also known as the scope table) for exception handling,
99a814a1
AM		 3727 debugging, etc. */
3728
252b5132 3729static void
99a814a1 3730ppc_ydata (ignore)
5480ccf3 3731 int ignore ATTRIBUTE_UNUSED;
252b5132 3732{
81d4177b 3733 if (ydata_section == 0)
252b5132
RH		 3734 {
3735 ydata_section = subseg_new (".ydata", 0);
3736 bfd_set_section_flags (stdoutput, ydata_section,
99a814a1
AM		 3737 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
3738 | SEC_READONLY | SEC_DATA ));
252b5132
RH		 3739
3740 bfd_set_section_alignment (stdoutput, ydata_section, 3);
3741 }
3742 else
3743 {
3744 ydata_section = subseg_new (".ydata", 0);
3745 }
99a814a1 3746 ppc_set_current_section (ydata_section);
252b5132
RH		 3747}
3748
3749/* pseudo-op: .reldata
3750 behaviour: predefined read write data section
3751 double word aligned (4-byte)
3752 FIXME: relocation is applied to it
3753 FIXME: what's the difference between this and .data?
3754 errors: None
3755 warnings: None
3756 initial: .section .reldata "drw3"
3757 d - initialized data
3758 r - readable
3759 w - writeable
3760 3 - double word aligned (that would be 8 byte boundary)
3761
3762 commentary:
3763 Like .data, but intended to hold data subject to relocation, such as
99a814a1
AM		 3764 function descriptors, etc. */
3765
252b5132 3766static void
99a814a1 3767ppc_reldata (ignore)
5480ccf3 3768 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3769{
3770 if (reldata_section == 0)
3771 {
3772 reldata_section = subseg_new (".reldata", 0);
3773
3774 bfd_set_section_flags (stdoutput, reldata_section,
99a814a1
AM		 3775 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
3776 | SEC_DATA));
252b5132
RH		 3777
3778 bfd_set_section_alignment (stdoutput, reldata_section, 2);
3779 }
3780 else
3781 {
3782 reldata_section = subseg_new (".reldata", 0);
3783 }
99a814a1 3784 ppc_set_current_section (reldata_section);
252b5132
RH		 3785}
3786
3787/* pseudo-op: .rdata
3788 behaviour: predefined read only data section
3789 double word aligned
3790 errors: None
3791 warnings: None
3792 initial: .section .rdata "dr3"
3793 d - initialized data
3794 r - readable
99a814a1
AM		 3795 3 - double word aligned (that would be 4 byte boundary) */
3796
252b5132 3797static void
99a814a1 3798ppc_rdata (ignore)
5480ccf3 3799 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3800{
3801 if (rdata_section == 0)
3802 {
3803 rdata_section = subseg_new (".rdata", 0);
3804 bfd_set_section_flags (stdoutput, rdata_section,
3805 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
3806 | SEC_READONLY | SEC_DATA ));
3807
3808 bfd_set_section_alignment (stdoutput, rdata_section, 2);
3809 }
3810 else
3811 {
3812 rdata_section = subseg_new (".rdata", 0);
3813 }
99a814a1 3814 ppc_set_current_section (rdata_section);
252b5132
RH		 3815}
3816
3817/* pseudo-op: .ualong
81d4177b 3818 behaviour: much like .int, with the exception that no alignment is
252b5132
RH		 3819 performed.
3820 FIXME: test the alignment statement
3821 errors: None
99a814a1
AM		 3822 warnings: None */
3823
252b5132 3824static void
99a814a1 3825ppc_ualong (ignore)
5480ccf3 3826 int ignore ATTRIBUTE_UNUSED;
252b5132 3827{
99a814a1
AM		 3828 /* Try for long. */
3829 cons (4);
252b5132
RH		 3830}
3831
3832/* pseudo-op: .znop <symbol name>
3833 behaviour: Issue a nop instruction
3834 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
3835 the supplied symbol name.
3836 errors: None
99a814a1
AM		 3837 warnings: Missing symbol name */
3838
252b5132 3839static void
99a814a1 3840ppc_znop (ignore)
5480ccf3 3841 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 3842{
3843 unsigned long insn;
3844 const struct powerpc_opcode *opcode;
3845 expressionS ex;
3846 char *f;
252b5132 3847 symbolS *sym;
252b5132
RH		 3848 char *symbol_name;
3849 char c;
3850 char *name;
3851 unsigned int exp;
3852 flagword flags;
3853 asection *sec;
3854
99a814a1 3855 /* Strip out the symbol name. */
252b5132
RH		 3856 symbol_name = input_line_pointer;
3857 c = get_symbol_end ();
3858
3859 name = xmalloc (input_line_pointer - symbol_name + 1);
3860 strcpy (name, symbol_name);
3861
3862 sym = symbol_find_or_make (name);
3863
3864 *input_line_pointer = c;
3865
3866 SKIP_WHITESPACE ();
3867
3868 /* Look up the opcode in the hash table. */
3869 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
3870
99a814a1 3871 /* Stick in the nop. */
252b5132
RH		 3872 insn = opcode->opcode;
3873
3874 /* Write out the instruction. */
3875 f = frag_more (4);
3876 md_number_to_chars (f, insn, 4);
3877 fix_new (frag_now,
3878 f - frag_now->fr_literal,
3879 4,
3880 sym,
3881 0,
3882 0,
3883 BFD_RELOC_16_GOT_PCREL);
3884
3885}
3886
81d4177b
KH		 3887/* pseudo-op:
3888 behaviour:
3889 errors:
99a814a1
AM		 3890 warnings: */
3891
252b5132 3892static void
99a814a1 3893ppc_pe_comm (lcomm)
252b5132
RH		 3894 int lcomm;
3895{
3896 register char *name;
3897 register char c;
3898 register char *p;
3899 offsetT temp;
3900 register symbolS *symbolP;
3901 offsetT align;
3902
3903 name = input_line_pointer;
3904 c = get_symbol_end ();
3905
99a814a1 3906 /* just after name is now '\0'. */
252b5132
RH		 3907 p = input_line_pointer;
3908 *p = c;
3909 SKIP_WHITESPACE ();
3910 if (*input_line_pointer != ',')
3911 {
3912 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
3913 ignore_rest_of_line ();
3914 return;
3915 }
3916
3917 input_line_pointer++; /* skip ',' */
3918 if ((temp = get_absolute_expression ()) < 0)
3919 {
3920 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
3921 ignore_rest_of_line ();
3922 return;
3923 }
3924
3925 if (! lcomm)
3926 {
3927 /* The third argument to .comm is the alignment. */
3928 if (*input_line_pointer != ',')
3929 align = 3;
3930 else
3931 {
3932 ++input_line_pointer;
3933 align = get_absolute_expression ();
3934 if (align <= 0)
3935 {
3936 as_warn (_("ignoring bad alignment"));
3937 align = 3;
3938 }
3939 }
3940 }
3941
3942 *p = 0;
3943 symbolP = symbol_find_or_make (name);
3944
3945 *p = c;
3946 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
3947 {
3948 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
3949 S_GET_NAME (symbolP));
3950 ignore_rest_of_line ();
3951 return;
3952 }
3953
3954 if (S_GET_VALUE (symbolP))
3955 {
3956 if (S_GET_VALUE (symbolP) != (valueT) temp)
3957 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
3958 S_GET_NAME (symbolP),
3959 (long) S_GET_VALUE (symbolP),
3960 (long) temp);
3961 }
3962 else
3963 {
3964 S_SET_VALUE (symbolP, (valueT) temp);
3965 S_SET_EXTERNAL (symbolP);
3966 }
3967
3968 demand_empty_rest_of_line ();
3969}
3970
3971/*
3972 * implement the .section pseudo op:
3973 * .section name {, "flags"}
3974 * ^ ^
3975 * | +--- optional flags: 'b' for bss
3976 * | 'i' for info
3977 * +-- section name 'l' for lib
3978 * 'n' for noload
3979 * 'o' for over
3980 * 'w' for data
3981 * 'd' (apparently m88k for data)
3982 * 'x' for text
3983 * But if the argument is not a quoted string, treat it as a
3984 * subsegment number.
3985 *
3986 * FIXME: this is a copy of the section processing from obj-coff.c, with
3987 * additions/changes for the moto-pas assembler support. There are three
3988 * categories:
3989 *
81d4177b 3990 * FIXME: I just noticed this. This doesn't work at all really. It it
252b5132
RH		 3991 * setting bits that bfd probably neither understands or uses. The
3992 * correct approach (?) will have to incorporate extra fields attached
3993 * to the section to hold the system specific stuff. (krk)
3994 *
3995 * Section Contents:
3996 * 'a' - unknown - referred to in documentation, but no definition supplied
3997 * 'c' - section has code
3998 * 'd' - section has initialized data
3999 * 'u' - section has uninitialized data
4000 * 'i' - section contains directives (info)
4001 * 'n' - section can be discarded
4002 * 'R' - remove section at link time
4003 *
4004 * Section Protection:
4005 * 'r' - section is readable
4006 * 'w' - section is writeable
4007 * 'x' - section is executable
4008 * 's' - section is sharable
4009 *
4010 * Section Alignment:
4011 * '0' - align to byte boundary
4012 * '1' - align to halfword undary
4013 * '2' - align to word boundary
4014 * '3' - align to doubleword boundary
4015 * '4' - align to quadword boundary
4016 * '5' - align to 32 byte boundary
4017 * '6' - align to 64 byte boundary
4018 *
4019 */
4020
4021void
4022ppc_pe_section (ignore)
5480ccf3 4023 int ignore ATTRIBUTE_UNUSED;
252b5132 4024{
99a814a1 4025 /* Strip out the section name. */
252b5132
RH		 4026 char *section_name;
4027 char c;
4028 char *name;
4029 unsigned int exp;
4030 flagword flags;
4031 segT sec;
4032 int align;
4033
4034 section_name = input_line_pointer;
4035 c = get_symbol_end ();
4036
4037 name = xmalloc (input_line_pointer - section_name + 1);
4038 strcpy (name, section_name);
4039
4040 *input_line_pointer = c;
4041
4042 SKIP_WHITESPACE ();
4043
4044 exp = 0;
4045 flags = SEC_NO_FLAGS;
4046
4047 if (strcmp (name, ".idata$2") == 0)
4048 {
4049 align = 0;
4050 }
4051 else if (strcmp (name, ".idata$3") == 0)
4052 {
4053 align = 0;
4054 }
4055 else if (strcmp (name, ".idata$4") == 0)
4056 {
4057 align = 2;
4058 }
4059 else if (strcmp (name, ".idata$5") == 0)
4060 {
4061 align = 2;
4062 }
4063 else if (strcmp (name, ".idata$6") == 0)
4064 {
4065 align = 1;
4066 }
4067 else
99a814a1
AM		 4068 /* Default alignment to 16 byte boundary. */
4069 align = 4;
252b5132
RH		 4070
4071 if (*input_line_pointer == ',')
4072 {
4073 ++input_line_pointer;
4074 SKIP_WHITESPACE ();
4075 if (*input_line_pointer != '"')
4076 exp = get_absolute_expression ();
4077 else
4078 {
4079 ++input_line_pointer;
4080 while (*input_line_pointer != '"'
4081 && ! is_end_of_line[(unsigned char) *input_line_pointer])
4082 {
4083 switch (*input_line_pointer)
4084 {
4085 /* Section Contents */
4086 case 'a': /* unknown */
4087 as_bad (_("Unsupported section attribute -- 'a'"));
4088 break;
4089 case 'c': /* code section */
81d4177b 4090 flags |= SEC_CODE;
252b5132
RH		 4091 break;
4092 case 'd': /* section has initialized data */
4093 flags |= SEC_DATA;
4094 break;
4095 case 'u': /* section has uninitialized data */
4096 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4097 in winnt.h */
4098 flags |= SEC_ROM;
4099 break;
4100 case 'i': /* section contains directives (info) */
4101 /* FIXME: This is IMAGE_SCN_LNK_INFO
4102 in winnt.h */
4103 flags |= SEC_HAS_CONTENTS;
4104 break;
4105 case 'n': /* section can be discarded */
81d4177b 4106 flags &=~ SEC_LOAD;
252b5132
RH		 4107 break;
4108 case 'R': /* Remove section at link time */
4109 flags |= SEC_NEVER_LOAD;
4110 break;
4111
4112 /* Section Protection */
4113 case 'r': /* section is readable */
4114 flags |= IMAGE_SCN_MEM_READ;
4115 break;
4116 case 'w': /* section is writeable */
4117 flags |= IMAGE_SCN_MEM_WRITE;
4118 break;
4119 case 'x': /* section is executable */
4120 flags |= IMAGE_SCN_MEM_EXECUTE;
4121 break;
4122 case 's': /* section is sharable */
4123 flags |= IMAGE_SCN_MEM_SHARED;
4124 break;
4125
4126 /* Section Alignment */
4127 case '0': /* align to byte boundary */
4128 flags |= IMAGE_SCN_ALIGN_1BYTES;
4129 align = 0;
4130 break;
4131 case '1': /* align to halfword boundary */
4132 flags |= IMAGE_SCN_ALIGN_2BYTES;
4133 align = 1;
4134 break;
4135 case '2': /* align to word boundary */
4136 flags |= IMAGE_SCN_ALIGN_4BYTES;
4137 align = 2;
4138 break;
4139 case '3': /* align to doubleword boundary */
4140 flags |= IMAGE_SCN_ALIGN_8BYTES;
4141 align = 3;
4142 break;
4143 case '4': /* align to quadword boundary */
4144 flags |= IMAGE_SCN_ALIGN_16BYTES;
4145 align = 4;
4146 break;
4147 case '5': /* align to 32 byte boundary */
4148 flags |= IMAGE_SCN_ALIGN_32BYTES;
4149 align = 5;
4150 break;
4151 case '6': /* align to 64 byte boundary */
4152 flags |= IMAGE_SCN_ALIGN_64BYTES;
4153 align = 6;
4154 break;
4155
4156 default:
99a814a1
AM		 4157 as_bad (_("unknown section attribute '%c'"),
4158 *input_line_pointer);
252b5132
RH		 4159 break;
4160 }
4161 ++input_line_pointer;
4162 }
4163 if (*input_line_pointer == '"')
4164 ++input_line_pointer;
4165 }
4166 }
4167
4168 sec = subseg_new (name, (subsegT) exp);
4169
99a814a1 4170 ppc_set_current_section (sec);
252b5132
RH		 4171
4172 if (flags != SEC_NO_FLAGS)
4173 {
4174 if (! bfd_set_section_flags (stdoutput, sec, flags))
4175 as_bad (_("error setting flags for \"%s\": %s"),
4176 bfd_section_name (stdoutput, sec),
4177 bfd_errmsg (bfd_get_error ()));
4178 }
4179
99a814a1 4180 bfd_set_section_alignment (stdoutput, sec, align);
252b5132
RH		 4181
4182}
4183
4184static void
4185ppc_pe_function (ignore)
5480ccf3 4186 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 4187{
4188 char *name;
4189 char endc;
4190 symbolS *ext_sym;
4191
4192 name = input_line_pointer;
4193 endc = get_symbol_end ();
4194
4195 ext_sym = symbol_find_or_make (name);
4196
4197 *input_line_pointer = endc;
4198
4199 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4200 SF_SET_FUNCTION (ext_sym);
4201 SF_SET_PROCESS (ext_sym);
4202 coff_add_linesym (ext_sym);
4203
4204 demand_empty_rest_of_line ();
4205}
4206
4207static void
4208ppc_pe_tocd (ignore)
5480ccf3 4209 int ignore ATTRIBUTE_UNUSED;
252b5132
RH		 4210{
4211 if (tocdata_section == 0)
4212 {
4213 tocdata_section = subseg_new (".tocd", 0);
99a814a1 4214 /* FIXME: section flags won't work. */
252b5132
RH		 4215 bfd_set_section_flags (stdoutput, tocdata_section,
4216 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
99a814a1 4217 | SEC_READONLY | SEC_DATA));
252b5132
RH		 4218
4219 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
4220 }
4221 else
4222 {
4223 rdata_section = subseg_new (".tocd", 0);
4224 }
4225
99a814a1 4226 ppc_set_current_section (tocdata_section);
252b5132
RH		 4227
4228 demand_empty_rest_of_line ();
4229}
4230
4231/* Don't adjust TOC relocs to use the section symbol. */
4232
4233int
4234ppc_pe_fix_adjustable (fix)
4235 fixS *fix;
4236{
4237 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
4238}
4239
4240#endif
4241\f
4242#ifdef OBJ_XCOFF
4243
4244/* XCOFF specific symbol and file handling. */
4245
4246/* Canonicalize the symbol name. We use the to force the suffix, if
4247 any, to use square brackets, and to be in upper case. */
4248
4249char *
4250ppc_canonicalize_symbol_name (name)
4251 char *name;
4252{
4253 char *s;
4254
4255 if (ppc_stab_symbol)
4256 return name;
4257
4258 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
4259 ;
4260 if (*s != '\0')
4261 {
4262 char brac;
4263
4264 if (*s == '[')
4265 brac = ']';
4266 else
4267 {
4268 *s = '[';
4269 brac = '}';
4270 }
4271
4272 for (s++; *s != '\0' && *s != brac; s++)
3882b010 4273 *s = TOUPPER (*s);
252b5132
RH		 4274
4275 if (*s == '\0' || s[1] != '\0')
4276 as_bad (_("bad symbol suffix"));
4277
4278 *s = ']';
4279 }
4280
4281 return name;
4282}
4283
4284/* Set the class of a symbol based on the suffix, if any. This is
4285 called whenever a new symbol is created. */
4286
4287void
4288ppc_symbol_new_hook (sym)
4289 symbolS *sym;
4290{
809ffe0d 4291 struct ppc_tc_sy *tc;
252b5132
RH		 4292 const char *s;
4293
809ffe0d
ILT		 4294 tc = symbol_get_tc (sym);
4295 tc->next = NULL;
4296 tc->output = 0;
4297 tc->class = -1;
4298 tc->real_name = NULL;
4299 tc->subseg = 0;
4300 tc->align = 0;
4301 tc->size = NULL;
4302 tc->within = NULL;
252b5132
RH		 4303
4304 if (ppc_stab_symbol)
4305 return;
4306
4307 s = strchr (S_GET_NAME (sym), '[');
4308 if (s == (const char *) NULL)
4309 {
4310 /* There is no suffix. */
4311 return;
4312 }
4313
4314 ++s;
4315
4316 switch (s[0])
4317 {
4318 case 'B':
4319 if (strcmp (s, "BS]") == 0)
809ffe0d 4320 tc->class = XMC_BS;
252b5132
RH		 4321 break;
4322 case 'D':
4323 if (strcmp (s, "DB]") == 0)
809ffe0d 4324 tc->class = XMC_DB;
252b5132 4325 else if (strcmp (s, "DS]") == 0)
809ffe0d 4326 tc->class = XMC_DS;
252b5132
RH		 4327 break;
4328 case 'G':
4329 if (strcmp (s, "GL]") == 0)
809ffe0d 4330 tc->class = XMC_GL;
252b5132
RH		 4331 break;
4332 case 'P':
4333 if (strcmp (s, "PR]") == 0)
809ffe0d 4334 tc->class = XMC_PR;
252b5132
RH		 4335 break;
4336 case 'R':
4337 if (strcmp (s, "RO]") == 0)
809ffe0d 4338 tc->class = XMC_RO;
252b5132 4339 else if (strcmp (s, "RW]") == 0)
809ffe0d 4340 tc->class = XMC_RW;
252b5132
RH		 4341 break;
4342 case 'S':
4343 if (strcmp (s, "SV]") == 0)
809ffe0d 4344 tc->class = XMC_SV;
252b5132
RH		 4345 break;
4346 case 'T':
4347 if (strcmp (s, "TC]") == 0)
809ffe0d 4348 tc->class = XMC_TC;
252b5132 4349 else if (strcmp (s, "TI]") == 0)
809ffe0d 4350 tc->class = XMC_TI;
252b5132 4351 else if (strcmp (s, "TB]") == 0)
809ffe0d 4352 tc->class = XMC_TB;
252b5132 4353 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
809ffe0d 4354 tc->class = XMC_TC0;
252b5132
RH		 4355 break;
4356 case 'U':
4357 if (strcmp (s, "UA]") == 0)
809ffe0d 4358 tc->class = XMC_UA;
252b5132 4359 else if (strcmp (s, "UC]") == 0)
809ffe0d 4360 tc->class = XMC_UC;
252b5132
RH		 4361 break;
4362 case 'X':
4363 if (strcmp (s, "XO]") == 0)
809ffe0d 4364 tc->class = XMC_XO;
252b5132
RH		 4365 break;
4366 }
4367
809ffe0d 4368 if (tc->class == -1)
252b5132
RH		 4369 as_bad (_("Unrecognized symbol suffix"));
4370}
4371
4372/* Set the class of a label based on where it is defined. This
4373 handles symbols without suffixes. Also, move the symbol so that it
4374 follows the csect symbol. */
4375
4376void
4377ppc_frob_label (sym)
4378 symbolS *sym;
4379{
4380 if (ppc_current_csect != (symbolS *) NULL)
4381 {
809ffe0d
ILT		 4382 if (symbol_get_tc (sym)->class == -1)
4383 symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class;
252b5132
RH		 4384
4385 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
809ffe0d
ILT		 4386 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
4387 &symbol_rootP, &symbol_lastP);
4388 symbol_get_tc (ppc_current_csect)->within = sym;
252b5132
RH		 4389 }
4390}
4391
4392/* This variable is set by ppc_frob_symbol if any absolute symbols are
4393 seen. It tells ppc_adjust_symtab whether it needs to look through
4394 the symbols. */
4395
4396static boolean ppc_saw_abs;
4397
4398/* Change the name of a symbol just before writing it out. Set the
4399 real name if the .rename pseudo-op was used. Otherwise, remove any
4400 class suffix. Return 1 if the symbol should not be included in the
4401 symbol table. */
4402
4403int
4404ppc_frob_symbol (sym)
4405 symbolS *sym;
4406{
4407 static symbolS *ppc_last_function;
4408 static symbolS *set_end;
4409
4410 /* Discard symbols that should not be included in the output symbol
4411 table. */
809ffe0d
ILT		 4412 if (! symbol_used_in_reloc_p (sym)
4413 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
252b5132 4414 || (! S_IS_EXTERNAL (sym)
809ffe0d 4415 && ! symbol_get_tc (sym)->output
252b5132
RH		 4416 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
4417 return 1;
4418
809ffe0d
ILT		 4419 if (symbol_get_tc (sym)->real_name != (char *) NULL)
4420 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
252b5132
RH		 4421 else
4422 {
4423 const char *name;
4424 const char *s;
4425
4426 name = S_GET_NAME (sym);
4427 s = strchr (name, '[');
4428 if (s != (char *) NULL)
4429 {
4430 unsigned int len;
4431 char *snew;
4432
4433 len = s - name;
4434 snew = xmalloc (len + 1);
4435 memcpy (snew, name, len);
4436 snew[len] = '\0';
4437
4438 S_SET_NAME (sym, snew);
4439 }
4440 }
4441
4442 if (set_end != (symbolS *) NULL)
4443 {
4444 SA_SET_SYM_ENDNDX (set_end, sym);
4445 set_end = NULL;
4446 }
4447
4448 if (SF_GET_FUNCTION (sym))
4449 {
4450 if (ppc_last_function != (symbolS *) NULL)
4451 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4452 ppc_last_function = sym;
809ffe0d 4453 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
252b5132 4454 {
6386f3a7 4455 resolve_symbol_value (symbol_get_tc (sym)->size);
809ffe0d
ILT		 4456 SA_SET_SYM_FSIZE (sym,
4457 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
252b5132
RH		 4458 }
4459 }
4460 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
4461 && strcmp (S_GET_NAME (sym), ".ef") == 0)
4462 {
4463 if (ppc_last_function == (symbolS *) NULL)
4464 as_bad (_(".ef with no preceding .function"));
4465 else
4466 {
4467 set_end = ppc_last_function;
4468 ppc_last_function = NULL;
4469
4470 /* We don't have a C_EFCN symbol, but we need to force the
4471 COFF backend to believe that it has seen one. */
4472 coff_last_function = NULL;
4473 }
4474 }
4475
4476 if (! S_IS_EXTERNAL (sym)
809ffe0d 4477 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
252b5132
RH		 4478 && S_GET_STORAGE_CLASS (sym) != C_FILE
4479 && S_GET_STORAGE_CLASS (sym) != C_FCN
4480 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
4481 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
4482 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
4483 && S_GET_STORAGE_CLASS (sym) != C_BINCL
4484 && S_GET_STORAGE_CLASS (sym) != C_EINCL
4485 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
4486 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
4487
4488 if (S_GET_STORAGE_CLASS (sym) == C_EXT
4489 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
4490 {
4491 int i;
4492 union internal_auxent *a;
4493
4494 /* Create a csect aux. */
4495 i = S_GET_NUMBER_AUXILIARY (sym);
4496 S_SET_NUMBER_AUXILIARY (sym, i + 1);
809ffe0d
ILT		 4497 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
4498 if (symbol_get_tc (sym)->class == XMC_TC0)
252b5132
RH		 4499 {
4500 /* This is the TOC table. */
4501 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
4502 a->x_csect.x_scnlen.l = 0;
4503 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
4504 }
809ffe0d 4505 else if (symbol_get_tc (sym)->subseg != 0)
252b5132
RH		 4506 {
4507 /* This is a csect symbol. x_scnlen is the size of the
4508 csect. */
809ffe0d 4509 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
252b5132
RH		 4510 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
4511 S_GET_SEGMENT (sym))
4512 - S_GET_VALUE (sym));
4513 else
4514 {
6386f3a7 4515 resolve_symbol_value (symbol_get_tc (sym)->next);
809ffe0d 4516 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
252b5132
RH		 4517 - S_GET_VALUE (sym));
4518 }
809ffe0d 4519 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
252b5132
RH		 4520 }
4521 else if (S_GET_SEGMENT (sym) == bss_section)
4522 {
4523 /* This is a common symbol. */
809ffe0d
ILT		 4524 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
4525 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
252b5132 4526 if (S_IS_EXTERNAL (sym))
809ffe0d 4527 symbol_get_tc (sym)->class = XMC_RW;
252b5132 4528 else
809ffe0d 4529 symbol_get_tc (sym)->class = XMC_BS;
252b5132
RH		 4530 }
4531 else if (S_GET_SEGMENT (sym) == absolute_section)
4532 {
4533 /* This is an absolute symbol. The csect will be created by
99a814a1 4534 ppc_adjust_symtab. */
252b5132
RH		 4535 ppc_saw_abs = true;
4536 a->x_csect.x_smtyp = XTY_LD;
809ffe0d
ILT		 4537 if (symbol_get_tc (sym)->class == -1)
4538 symbol_get_tc (sym)->class = XMC_XO;
252b5132
RH		 4539 }
4540 else if (! S_IS_DEFINED (sym))
4541 {
4542 /* This is an external symbol. */
4543 a->x_csect.x_scnlen.l = 0;
4544 a->x_csect.x_smtyp = XTY_ER;
4545 }
809ffe0d 4546 else if (symbol_get_tc (sym)->class == XMC_TC)
252b5132
RH		 4547 {
4548 symbolS *next;
4549
4550 /* This is a TOC definition. x_scnlen is the size of the
4551 TOC entry. */
4552 next = symbol_next (sym);
809ffe0d 4553 while (symbol_get_tc (next)->class == XMC_TC0)
252b5132
RH		 4554 next = symbol_next (next);
4555 if (next == (symbolS *) NULL
809ffe0d 4556 || symbol_get_tc (next)->class != XMC_TC)
252b5132
RH		 4557 {
4558 if (ppc_after_toc_frag == (fragS *) NULL)
4559 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
4560 data_section)
4561 - S_GET_VALUE (sym));
4562 else
4563 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
4564 - S_GET_VALUE (sym));
4565 }
4566 else
4567 {
6386f3a7 4568 resolve_symbol_value (next);
252b5132
RH		 4569 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
4570 - S_GET_VALUE (sym));
4571 }
4572 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
4573 }
4574 else
4575 {
4576 symbolS *csect;
4577
4578 /* This is a normal symbol definition. x_scnlen is the
4579 symbol index of the containing csect. */
4580 if (S_GET_SEGMENT (sym) == text_section)
4581 csect = ppc_text_csects;
4582 else if (S_GET_SEGMENT (sym) == data_section)
4583 csect = ppc_data_csects;
4584 else
4585 abort ();
4586
4587 /* Skip the initial dummy symbol. */
809ffe0d 4588 csect = symbol_get_tc (csect)->next;
252b5132
RH		 4589
4590 if (csect == (symbolS *) NULL)
4591 {
4592 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
4593 a->x_csect.x_scnlen.l = 0;
4594 }
4595 else
4596 {
809ffe0d 4597 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
252b5132 4598 {
6386f3a7 4599 resolve_symbol_value (symbol_get_tc (csect)->next);
809ffe0d
ILT		 4600 if (S_GET_VALUE (symbol_get_tc (csect)->next)
4601 > S_GET_VALUE (sym))
252b5132 4602 break;
809ffe0d 4603 csect = symbol_get_tc (csect)->next;
252b5132
RH		 4604 }
4605
809ffe0d
ILT		 4606 a->x_csect.x_scnlen.p =
4607 coffsymbol (symbol_get_bfdsym (csect))->native;
4608 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
4609 1;
252b5132
RH		 4610 }
4611 a->x_csect.x_smtyp = XTY_LD;
4612 }
81d4177b 4613
252b5132
RH		 4614 a->x_csect.x_parmhash = 0;
4615 a->x_csect.x_snhash = 0;
809ffe0d 4616 if (symbol_get_tc (sym)->class == -1)
252b5132
RH		 4617 a->x_csect.x_smclas = XMC_PR;
4618 else
809ffe0d 4619 a->x_csect.x_smclas = symbol_get_tc (sym)->class;
252b5132
RH		 4620 a->x_csect.x_stab = 0;
4621 a->x_csect.x_snstab = 0;
4622
4623 /* Don't let the COFF backend resort these symbols. */
809ffe0d 4624 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
252b5132
RH		 4625 }
4626 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
4627 {
4628 /* We want the value to be the symbol index of the referenced
4629 csect symbol. BFD will do that for us if we set the right
4630 flags. */
4631 S_SET_VALUE (sym,
809ffe0d
ILT		 4632 ((valueT)
4633 coffsymbol (symbol_get_bfdsym
4634 (symbol_get_tc (sym)->within))->native));
4635 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
252b5132
RH		 4636 }
4637 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
4638 {
4639 symbolS *block;
4640 symbolS *csect;
4641
4642 /* The value is the offset from the enclosing csect. */
809ffe0d
ILT		 4643 block = symbol_get_tc (sym)->within;
4644 csect = symbol_get_tc (block)->within;
6386f3a7 4645 resolve_symbol_value (csect);
252b5132
RH		 4646 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
4647 }
4648 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
4649 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
4650 {
4651 /* We want the value to be a file offset into the line numbers.
99a814a1
AM		 4652 BFD will do that for us if we set the right flags. We have
4653 already set the value correctly. */
809ffe0d 4654 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
252b5132
RH		 4655 }
4656
4657 return 0;
4658}
4659
4660/* Adjust the symbol table. This creates csect symbols for all
4661 absolute symbols. */
4662
4663void
4664ppc_adjust_symtab ()
4665{
4666 symbolS *sym;
4667
4668 if (! ppc_saw_abs)
4669 return;
4670
4671 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
4672 {
4673 symbolS *csect;
4674 int i;
4675 union internal_auxent *a;
4676
4677 if (S_GET_SEGMENT (sym) != absolute_section)
4678 continue;
4679
4680 csect = symbol_create (".abs[XO]", absolute_section,
4681 S_GET_VALUE (sym), &zero_address_frag);
809ffe0d 4682 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
252b5132
RH		 4683 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
4684 i = S_GET_NUMBER_AUXILIARY (csect);
4685 S_SET_NUMBER_AUXILIARY (csect, i + 1);
809ffe0d 4686 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
252b5132
RH		 4687 a->x_csect.x_scnlen.l = 0;
4688 a->x_csect.x_smtyp = XTY_SD;
4689 a->x_csect.x_parmhash = 0;
4690 a->x_csect.x_snhash = 0;
4691 a->x_csect.x_smclas = XMC_XO;
4692 a->x_csect.x_stab = 0;
4693 a->x_csect.x_snstab = 0;
4694
4695 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
4696
4697 i = S_GET_NUMBER_AUXILIARY (sym);
809ffe0d
ILT		 4698 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
4699 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
4700 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
252b5132
RH		 4701 }
4702
4703 ppc_saw_abs = false;
4704}
4705
4706/* Set the VMA for a section. This is called on all the sections in
4707 turn. */
4708
4709void
4710ppc_frob_section (sec)
4711 asection *sec;
4712{
4713 static bfd_size_type vma = 0;
4714
4715 bfd_set_section_vma (stdoutput, sec, vma);
4716 vma += bfd_section_size (stdoutput, sec);
4717}
4718
4719#endif /* OBJ_XCOFF */
4720\f
4721/* Turn a string in input_line_pointer into a floating point constant
bc0d738a
NC		 4722 of type TYPE, and store the appropriate bytes in *LITP. The number
4723 of LITTLENUMS emitted is stored in *SIZEP. An error message is
252b5132
RH		 4724 returned, or NULL on OK. */
4725
4726char *
4727md_atof (type, litp, sizep)
4728 int type;
4729 char *litp;
4730 int *sizep;
4731{
4732 int prec;
4733 LITTLENUM_TYPE words[4];
4734 char *t;
4735 int i;
4736
4737 switch (type)
4738 {
4739 case 'f':
4740 prec = 2;
4741 break;
4742
4743 case 'd':
4744 prec = 4;
4745 break;
4746
4747 default:
4748 *sizep = 0;
4749 return _("bad call to md_atof");
4750 }
4751
4752 t = atof_ieee (input_line_pointer, type, words);
4753 if (t)
4754 input_line_pointer = t;
4755
4756 *sizep = prec * 2;
4757
4758 if (target_big_endian)
4759 {
4760 for (i = 0; i < prec; i++)
4761 {
4762 md_number_to_chars (litp, (valueT) words[i], 2);
4763 litp += 2;
4764 }
4765 }
4766 else
4767 {
4768 for (i = prec - 1; i >= 0; i--)
4769 {
4770 md_number_to_chars (litp, (valueT) words[i], 2);
4771 litp += 2;
4772 }
4773 }
81d4177b 4774
252b5132
RH		 4775 return NULL;
4776}
4777
4778/* Write a value out to the object file, using the appropriate
4779 endianness. */
4780
4781void
4782md_number_to_chars (buf, val, n)
4783 char *buf;
4784 valueT val;
4785 int n;
4786{
4787 if (target_big_endian)
4788 number_to_chars_bigendian (buf, val, n);
4789 else
4790 number_to_chars_littleendian (buf, val, n);
4791}
4792
4793/* Align a section (I don't know why this is machine dependent). */
4794
4795valueT
4796md_section_align (seg, addr)
4797 asection *seg;
4798 valueT addr;
4799{
4800 int align = bfd_get_section_alignment (stdoutput, seg);
4801
4802 return ((addr + (1 << align) - 1) & (-1 << align));
4803}
4804
4805/* We don't have any form of relaxing. */
4806
4807int
4808md_estimate_size_before_relax (fragp, seg)
92161534
ILT		 4809 fragS *fragp ATTRIBUTE_UNUSED;
4810 asection *seg ATTRIBUTE_UNUSED;
252b5132
RH		 4811{
4812 abort ();
4813 return 0;
4814}
4815
4816/* Convert a machine dependent frag. We never generate these. */
4817
4818void
4819md_convert_frag (abfd, sec, fragp)
92161534
ILT		 4820 bfd *abfd ATTRIBUTE_UNUSED;
4821 asection *sec ATTRIBUTE_UNUSED;
4822 fragS *fragp ATTRIBUTE_UNUSED;
252b5132
RH		 4823{
4824 abort ();
4825}
4826
4827/* We have no need to default values of symbols. */
4828
252b5132
RH		 4829symbolS *
4830md_undefined_symbol (name)
92161534 4831 char *name ATTRIBUTE_UNUSED;
252b5132
RH		 4832{
4833 return 0;
4834}
4835\f
4836/* Functions concerning relocs. */
4837
4838/* The location from which a PC relative jump should be calculated,
4839 given a PC relative reloc. */
4840
4841long
4842md_pcrel_from_section (fixp, sec)
4843 fixS *fixp;
92161534 4844 segT sec ATTRIBUTE_UNUSED;
252b5132
RH		 4845{
4846 return fixp->fx_frag->fr_address + fixp->fx_where;
4847}
4848
4849#ifdef OBJ_XCOFF
4850
4851/* This is called to see whether a fixup should be adjusted to use a
4852 section symbol. We take the opportunity to change a fixup against
4853 a symbol in the TOC subsegment into a reloc against the
4854 corresponding .tc symbol. */
4855
4856int
4857ppc_fix_adjustable (fix)
4858 fixS *fix;
4859{
4860 valueT val;
4861
6386f3a7 4862 resolve_symbol_value (fix->fx_addsy);
252b5132
RH		 4863 val = S_GET_VALUE (fix->fx_addsy);
4864 if (ppc_toc_csect != (symbolS *) NULL
4865 && fix->fx_addsy != (symbolS *) NULL
4866 && fix->fx_addsy != ppc_toc_csect
4867 && S_GET_SEGMENT (fix->fx_addsy) == data_section
4868 && val >= ppc_toc_frag->fr_address
4869 && (ppc_after_toc_frag == (fragS *) NULL
4870 || val < ppc_after_toc_frag->fr_address))
4871 {
4872 symbolS *sy;
4873
4874 for (sy = symbol_next (ppc_toc_csect);
4875 sy != (symbolS *) NULL;
4876 sy = symbol_next (sy))
4877 {
809ffe0d 4878 if (symbol_get_tc (sy)->class == XMC_TC0)
252b5132 4879 continue;
809ffe0d 4880 if (symbol_get_tc (sy)->class != XMC_TC)
252b5132 4881 break;
6386f3a7 4882 resolve_symbol_value (sy);
252b5132
RH		 4883 if (val == S_GET_VALUE (sy))
4884 {
4885 fix->fx_addsy = sy;
4886 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
4887 return 0;
4888 }
4889 }
4890
4891 as_bad_where (fix->fx_file, fix->fx_line,
4892 _("symbol in .toc does not match any .tc"));
4893 }
4894
4895 /* Possibly adjust the reloc to be against the csect. */
4896 if (fix->fx_addsy != (symbolS *) NULL
809ffe0d
ILT		 4897 && symbol_get_tc (fix->fx_addsy)->subseg == 0
4898 && symbol_get_tc (fix->fx_addsy)->class != XMC_TC0
4899 && symbol_get_tc (fix->fx_addsy)->class != XMC_TC
252b5132
RH		 4900 && S_GET_SEGMENT (fix->fx_addsy) != bss_section
4901 /* Don't adjust if this is a reloc in the toc section. */
4902 && (S_GET_SEGMENT (fix->fx_addsy) != data_section
4903 || ppc_toc_csect == NULL
4904 || val < ppc_toc_frag->fr_address
4905 || (ppc_after_toc_frag != NULL
4906 && val >= ppc_after_toc_frag->fr_address)))
4907 {
4908 symbolS *csect;
4909
4910 if (S_GET_SEGMENT (fix->fx_addsy) == text_section)
4911 csect = ppc_text_csects;
4912 else if (S_GET_SEGMENT (fix->fx_addsy) == data_section)
4913 csect = ppc_data_csects;
4914 else
4915 abort ();
4916
4917 /* Skip the initial dummy symbol. */
809ffe0d 4918 csect = symbol_get_tc (csect)->next;
252b5132
RH		 4919
4920 if (csect != (symbolS *) NULL)
4921 {
809ffe0d
ILT		 4922 while (symbol_get_tc (csect)->next != (symbolS *) NULL
4923 && (symbol_get_frag (symbol_get_tc (csect)->next)->fr_address
2c1c4c62 4924 <= val))
252b5132
RH		 4925 {
4926 /* If the csect address equals the symbol value, then we
99a814a1
AM		 4927 have to look through the full symbol table to see
4928 whether this is the csect we want. Note that we will
4929 only get here if the csect has zero length. */
2c1c4c62 4930 if ((symbol_get_frag (csect)->fr_address == val)
252b5132
RH		 4931 && S_GET_VALUE (csect) == S_GET_VALUE (fix->fx_addsy))
4932 {
4933 symbolS *scan;
4934
809ffe0d 4935 for (scan = symbol_next (csect);
252b5132 4936 scan != NULL;
809ffe0d 4937 scan = symbol_next (scan))
252b5132 4938 {
809ffe0d 4939 if (symbol_get_tc (scan)->subseg != 0)
252b5132
RH		 4940 break;
4941 if (scan == fix->fx_addsy)
4942 break;
4943 }
4944
4945 /* If we found the symbol before the next csect
99a814a1 4946 symbol, then this is the csect we want. */
252b5132
RH		 4947 if (scan == fix->fx_addsy)
4948 break;
4949 }
4950
809ffe0d 4951 csect = symbol_get_tc (csect)->next;
252b5132
RH		 4952 }
4953
4954 fix->fx_offset += (S_GET_VALUE (fix->fx_addsy)
809ffe0d 4955 - symbol_get_frag (csect)->fr_address);
252b5132
RH		 4956 fix->fx_addsy = csect;
4957 }
4958 }
4959
4960 /* Adjust a reloc against a .lcomm symbol to be against the base
4961 .lcomm. */
4962 if (fix->fx_addsy != (symbolS *) NULL
4963 && S_GET_SEGMENT (fix->fx_addsy) == bss_section
4964 && ! S_IS_EXTERNAL (fix->fx_addsy))
4965 {
6386f3a7 4966 resolve_symbol_value (symbol_get_frag (fix->fx_addsy)->fr_symbol);
809ffe0d
ILT		 4967 fix->fx_offset +=
4968 (S_GET_VALUE (fix->fx_addsy)
4969 - S_GET_VALUE (symbol_get_frag (fix->fx_addsy)->fr_symbol));
4970 fix->fx_addsy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
252b5132
RH		 4971 }
4972
4973 return 0;
4974}
4975
4976/* A reloc from one csect to another must be kept. The assembler
4977 will, of course, keep relocs between sections, and it will keep
4978 absolute relocs, but we need to force it to keep PC relative relocs
4979 between two csects in the same section. */
4980
4981int
4982ppc_force_relocation (fix)
4983 fixS *fix;
4984{
4985 /* At this point fix->fx_addsy should already have been converted to
4986 a csect symbol. If the csect does not include the fragment, then
4987 we need to force the relocation. */
4988 if (fix->fx_pcrel
4989 && fix->fx_addsy != NULL
809ffe0d
ILT		 4990 && symbol_get_tc (fix->fx_addsy)->subseg != 0
4991 && ((symbol_get_frag (fix->fx_addsy)->fr_address
4992 > fix->fx_frag->fr_address)
4993 || (symbol_get_tc (fix->fx_addsy)->next != NULL
4994 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
252b5132
RH		 4995 <= fix->fx_frag->fr_address))))
4996 return 1;
4997
4998 return 0;
4999}
5000
5001#endif /* OBJ_XCOFF */
5002
0baf16f2
AM		 5003#ifdef OBJ_ELF
5004int
5005ppc_fix_adjustable (fix)
5006 fixS *fix;
252b5132 5007{
0baf16f2
AM		 5008 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
5009 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
5010 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
5011 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
5012 && fix->fx_r_type != BFD_RELOC_GPREL16
5013 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
5014 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
5015 && ! S_IS_EXTERNAL (fix->fx_addsy)
5016 && ! S_IS_WEAK (fix->fx_addsy)
5017 && (fix->fx_pcrel
5018 || (fix->fx_subsy != NULL
5019 && (S_GET_SEGMENT (fix->fx_subsy)
5020 == S_GET_SEGMENT (fix->fx_addsy)))
5021 || S_IS_LOCAL (fix->fx_addsy)));
252b5132 5022}
0baf16f2 5023#endif
252b5132
RH		 5024
5025/* Apply a fixup to the object code. This is called for all the
5026 fixups we generated by the call to fix_new_exp, above. In the call
5027 above we used a reloc code which was the largest legal reloc code
5028 plus the operand index. Here we undo that to recover the operand
5029 index. At this point all symbol values should be fully resolved,
5030 and we attempt to completely resolve the reloc. If we can not do
5031 that, we determine the correct reloc code and put it back in the
5032 fixup. */
5033
5034int
5035md_apply_fix3 (fixp, valuep, seg)
5036 fixS *fixp;
5037 valueT *valuep;
0baf16f2 5038 segT seg ATTRIBUTE_UNUSED;
252b5132
RH		 5039{
5040 valueT value;
5041
5042#ifdef OBJ_ELF
5043 value = *valuep;
5044 if (fixp->fx_addsy != NULL)
5045 {
5046 /* `*valuep' may contain the value of the symbol on which the reloc
5047 will be based; we have to remove it. */
49309057 5048 if (symbol_used_in_reloc_p (fixp->fx_addsy)
252b5132
RH		 5049 && S_GET_SEGMENT (fixp->fx_addsy) != absolute_section
5050 && S_GET_SEGMENT (fixp->fx_addsy) != undefined_section
5051 && ! bfd_is_com_section (S_GET_SEGMENT (fixp->fx_addsy)))
5052 value -= S_GET_VALUE (fixp->fx_addsy);
5053
5054 /* FIXME: Why '+'? Better yet, what exactly is '*valuep'
5055 supposed to be? I think this is related to various similar
5056 FIXMEs in tc-i386.c and tc-sparc.c. */
5057 if (fixp->fx_pcrel)
5058 value += fixp->fx_frag->fr_address + fixp->fx_where;
5059 }
5060 else
5061 {
5062 fixp->fx_done = 1;
5063 }
5064#else
5065 /* FIXME FIXME FIXME: The value we are passed in *valuep includes
5066 the symbol values. Since we are using BFD_ASSEMBLER, if we are
5067 doing this relocation the code in write.c is going to call
5068 bfd_install_relocation, which is also going to use the symbol
5069 value. That means that if the reloc is fully resolved we want to
5070 use *valuep since bfd_install_relocation is not being used.
5071 However, if the reloc is not fully resolved we do not want to use
5072 *valuep, and must use fx_offset instead. However, if the reloc
5073 is PC relative, we do want to use *valuep since it includes the
5074 result of md_pcrel_from. This is confusing. */
5075 if (fixp->fx_addsy == (symbolS *) NULL)
5076 {
5077 value = *valuep;
5078 fixp->fx_done = 1;
5079 }
5080 else if (fixp->fx_pcrel)
5081 value = *valuep;
5082 else
5083 {
5084 value = fixp->fx_offset;
5085 if (fixp->fx_subsy != (symbolS *) NULL)
5086 {
5087 if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section)
5088 value -= S_GET_VALUE (fixp->fx_subsy);
5089 else
5090 {
5091 /* We can't actually support subtracting a symbol. */
5092 as_bad_where (fixp->fx_file, fixp->fx_line,
5093 _("expression too complex"));
5094 }
5095 }
5096 }
5097#endif
5098
5099 if ((int) fixp->fx_r_type >= (int) BFD_RELOC_UNUSED)
5100 {
5101 int opindex;
5102 const struct powerpc_operand *operand;
5103 char *where;
5104 unsigned long insn;
5105
5106 opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED;
5107
5108 operand = &powerpc_operands[opindex];
5109
5110#ifdef OBJ_XCOFF
0baf16f2
AM		 5111 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5112 does not generate a reloc. It uses the offset of `sym' within its
5113 csect. Other usages, such as `.long sym', generate relocs. This
5114 is the documented behaviour of non-TOC symbols. */
252b5132
RH		 5115 if ((operand->flags & PPC_OPERAND_PARENS) != 0
5116 && operand->bits == 16
5117 && operand->shift == 0
5118 && operand->insert == NULL
5119 && fixp->fx_addsy != NULL
809ffe0d
ILT		 5120 && symbol_get_tc (fixp->fx_addsy)->subseg != 0
5121 && symbol_get_tc (fixp->fx_addsy)->class != XMC_TC
5122 && symbol_get_tc (fixp->fx_addsy)->class != XMC_TC0
252b5132
RH		 5123 && S_GET_SEGMENT (fixp->fx_addsy) != bss_section)
5124 {
5125 value = fixp->fx_offset;
5126 fixp->fx_done = 1;
5127 }
5128#endif
5129
5130 /* Fetch the instruction, insert the fully resolved operand
5131 value, and stuff the instruction back again. */
5132 where = fixp->fx_frag->fr_literal + fixp->fx_where;
5133 if (target_big_endian)
5134 insn = bfd_getb32 ((unsigned char *) where);
5135 else
5136 insn = bfd_getl32 ((unsigned char *) where);
5137 insn = ppc_insert_operand (insn, operand, (offsetT) value,
5138 fixp->fx_file, fixp->fx_line);
5139 if (target_big_endian)
5140 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5141 else
5142 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5143
5144 if (fixp->fx_done)
5145 {
5146 /* Nothing else to do here. */
5147 return 1;
5148 }
5149
0baf16f2
AM		 5150 assert (fixp->fx_addsy != NULL);
5151
252b5132
RH		 5152 /* Determine a BFD reloc value based on the operand information.
5153 We are only prepared to turn a few of the operands into
0baf16f2 5154 relocs. */
11b37b7b
AM		 5155 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5156 && operand->bits == 26
5157 && operand->shift == 0)
5158 fixp->fx_r_type = BFD_RELOC_PPC_B26;
5159 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5160 && operand->bits == 16
5161 && operand->shift == 0)
5162 fixp->fx_r_type = BFD_RELOC_PPC_B16;
5163 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5164 && operand->bits == 26
5165 && operand->shift == 0)
5166 fixp->fx_r_type = BFD_RELOC_PPC_BA26;
5167 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5168 && operand->bits == 16
5169 && operand->shift == 0)
5170 fixp->fx_r_type = BFD_RELOC_PPC_BA16;
0baf16f2 5171#if defined (OBJ_XCOFF) || defined (OBJ_ELF)
11b37b7b
AM		 5172 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
5173 && operand->bits == 16
5174 && operand->shift == 0
11b37b7b
AM		 5175 && ppc_is_toc_sym (fixp->fx_addsy))
5176 {
0baf16f2
AM		 5177 fixp->fx_r_type = BFD_RELOC_PPC_TOC16;
5178#ifdef OBJ_ELF
5179 if (BFD_DEFAULT_TARGET_SIZE == 64
9c7977b3 5180 && ppc_size == PPC_OPCODE_64
0baf16f2
AM		 5181 && (operand->flags & PPC_OPERAND_DS) != 0)
5182 fixp->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
5183#endif
11b37b7b
AM		 5184 fixp->fx_size = 2;
5185 if (target_big_endian)
5186 fixp->fx_where += 2;
11b37b7b 5187 }
0baf16f2 5188#endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
11b37b7b 5189 else
252b5132
RH		 5190 {
5191 char *sfile;
5192 unsigned int sline;
5193
5194 /* Use expr_symbol_where to see if this is an expression
0baf16f2 5195 symbol. */
252b5132
RH		 5196 if (expr_symbol_where (fixp->fx_addsy, &sfile, &sline))
5197 as_bad_where (fixp->fx_file, fixp->fx_line,
5198 _("unresolved expression that must be resolved"));
5199 else
5200 as_bad_where (fixp->fx_file, fixp->fx_line,
0baf16f2
AM		 5201 _("unsupported relocation against %s"),
5202 S_GET_NAME (fixp->fx_addsy));
252b5132
RH		 5203 fixp->fx_done = 1;
5204 return 1;
5205 }
5206 }
5207 else
5208 {
5209#ifdef OBJ_ELF
5210 ppc_elf_validate_fix (fixp, seg);
5211#endif
5212 switch (fixp->fx_r_type)
5213 {
252b5132 5214 case BFD_RELOC_CTOR:
9c7977b3
AM		 5215 if (BFD_DEFAULT_TARGET_SIZE == 64 && ppc_size == PPC_OPCODE_64)
5216 goto ctor64;
5217 /* fall through */
5218
0baf16f2 5219 case BFD_RELOC_32:
252b5132
RH		 5220 if (fixp->fx_pcrel)
5221 fixp->fx_r_type = BFD_RELOC_32_PCREL;
99a814a1 5222 /* fall through */
252b5132
RH		 5223
5224 case BFD_RELOC_RVA:
5225 case BFD_RELOC_32_PCREL:
5226 case BFD_RELOC_32_BASEREL:
5227 case BFD_RELOC_PPC_EMB_NADDR32:
5228 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
5229 value, 4);
5230 break;
5231
7f6d05e8 5232 case BFD_RELOC_64:
9c7977b3 5233 ctor64:
7f6d05e8
CP		 5234 if (fixp->fx_pcrel)
5235 fixp->fx_r_type = BFD_RELOC_64_PCREL;
99a814a1 5236 /* fall through */
0baf16f2 5237
7f6d05e8
CP		 5238 case BFD_RELOC_64_PCREL:
5239 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
5240 value, 8);
81d4177b 5241 break;
0baf16f2 5242
252b5132
RH		 5243 case BFD_RELOC_LO16:
5244 case BFD_RELOC_16:
5245 case BFD_RELOC_GPREL16:
5246 case BFD_RELOC_16_GOT_PCREL:
5247 case BFD_RELOC_16_GOTOFF:
5248 case BFD_RELOC_LO16_GOTOFF:
5249 case BFD_RELOC_HI16_GOTOFF:
5250 case BFD_RELOC_HI16_S_GOTOFF:
5251 case BFD_RELOC_LO16_BASEREL:
5252 case BFD_RELOC_HI16_BASEREL:
5253 case BFD_RELOC_HI16_S_BASEREL:
5254 case BFD_RELOC_PPC_EMB_NADDR16:
5255 case BFD_RELOC_PPC_EMB_NADDR16_LO:
5256 case BFD_RELOC_PPC_EMB_NADDR16_HI:
5257 case BFD_RELOC_PPC_EMB_NADDR16_HA:
5258 case BFD_RELOC_PPC_EMB_SDAI16:
5259 case BFD_RELOC_PPC_EMB_SDA2REL:
5260 case BFD_RELOC_PPC_EMB_SDA2I16:
5261 case BFD_RELOC_PPC_EMB_RELSEC16:
5262 case BFD_RELOC_PPC_EMB_RELST_LO:
5263 case BFD_RELOC_PPC_EMB_RELST_HI:
5264 case BFD_RELOC_PPC_EMB_RELST_HA:
5265 case BFD_RELOC_PPC_EMB_RELSDA:
5266 case BFD_RELOC_PPC_TOC16:
0baf16f2
AM		 5267#ifdef OBJ_ELF
5268#if BFD_DEFAULT_TARGET_SIZE == 64
5269 case BFD_RELOC_PPC64_TOC16_LO:
5270 case BFD_RELOC_PPC64_TOC16_HI:
5271 case BFD_RELOC_PPC64_TOC16_HA:
5272#endif
5273#endif
252b5132
RH		 5274 if (fixp->fx_pcrel)
5275 {
5276 if (fixp->fx_addsy != NULL)
5277 as_bad_where (fixp->fx_file, fixp->fx_line,
5278 _("cannot emit PC relative %s relocation against %s"),
5279 bfd_get_reloc_code_name (fixp->fx_r_type),
5280 S_GET_NAME (fixp->fx_addsy));
5281 else
5282 as_bad_where (fixp->fx_file, fixp->fx_line,
5283 _("cannot emit PC relative %s relocation"),
5284 bfd_get_reloc_code_name (fixp->fx_r_type));
5285 }
5286
5287 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
5288 value, 2);
5289 break;
5290
5291 /* This case happens when you write, for example,
5292 lis %r3,(L1-L2)@ha
5293 where L1 and L2 are defined later. */
5294 case BFD_RELOC_HI16:
5295 if (fixp->fx_pcrel)
5296 abort ();
5297 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
0baf16f2 5298 PPC_HI (value), 2);
252b5132 5299 break;
0baf16f2 5300
252b5132
RH		 5301 case BFD_RELOC_HI16_S:
5302 if (fixp->fx_pcrel)
5303 abort ();
5304 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
0baf16f2
AM		 5305 PPC_HA (value), 2);
5306 break;
5307
5308#ifdef OBJ_ELF
5309#if BFD_DEFAULT_TARGET_SIZE == 64
5310 case BFD_RELOC_PPC64_HIGHER:
5311 if (fixp->fx_pcrel)
5312 abort ();
5313 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
5314 PPC_HIGHER (value), 2);
252b5132
RH		 5315 break;
5316
0baf16f2
AM		 5317 case BFD_RELOC_PPC64_HIGHER_S:
5318 if (fixp->fx_pcrel)
5319 abort ();
5320 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
5321 PPC_HIGHERA (value), 2);
5322 break;
5323
5324 case BFD_RELOC_PPC64_HIGHEST:
5325 if (fixp->fx_pcrel)
5326 abort ();
5327 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
5328 PPC_HIGHEST (value), 2);
5329 break;
5330
5331 case BFD_RELOC_PPC64_HIGHEST_S:
5332 if (fixp->fx_pcrel)
5333 abort ();
5334 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
5335 PPC_HIGHESTA (value), 2);
5336 break;
5337
5338 case BFD_RELOC_PPC64_ADDR16_DS:
5339 case BFD_RELOC_PPC64_ADDR16_LO_DS:
5340 case BFD_RELOC_PPC64_GOT16_DS:
5341 case BFD_RELOC_PPC64_GOT16_LO_DS:
5342 case BFD_RELOC_PPC64_PLT16_LO_DS:
5343 case BFD_RELOC_PPC64_SECTOFF_DS:
5344 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
5345 case BFD_RELOC_PPC64_TOC16_DS:
5346 case BFD_RELOC_PPC64_TOC16_LO_DS:
5347 case BFD_RELOC_PPC64_PLTGOT16_DS:
5348 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
5349 if (fixp->fx_pcrel)
5350 abort ();
5351 {
5352 unsigned char *where = fixp->fx_frag->fr_literal + fixp->fx_where;
5353 unsigned long val;
5354
5355 if (target_big_endian)
5356 val = bfd_getb16 (where);
5357 else
5358 val = bfd_getl16 (where);
5359 val |= (value & 0xfffc);
5360 if (target_big_endian)
5361 bfd_putb16 ((bfd_vma) val, where);
5362 else
5363 bfd_putl16 ((bfd_vma) val, where);
5364 }
5365 break;
5366#endif
5367#endif
252b5132 5368 /* Because SDA21 modifies the register field, the size is set to 4
99a814a1 5369 bytes, rather than 2, so offset it here appropriately. */
252b5132
RH		 5370 case BFD_RELOC_PPC_EMB_SDA21:
5371 if (fixp->fx_pcrel)
5372 abort ();
5373
5374 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where
5375 + ((target_big_endian) ? 2 : 0),
5376 value, 2);
5377 break;
5378
5379 case BFD_RELOC_8:
5380 if (fixp->fx_pcrel)
5381 abort ();
5382
5383 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
5384 value, 1);
5385 break;
5386
5387 case BFD_RELOC_24_PLT_PCREL:
5388 case BFD_RELOC_PPC_LOCAL24PC:
5389 if (!fixp->fx_pcrel && !fixp->fx_done)
5390 abort ();
5391
5392 if (fixp->fx_done)
99a814a1
AM		 5393 {
5394 char *where;
5395 unsigned long insn;
5396
5397 /* Fetch the instruction, insert the fully resolved operand
5398 value, and stuff the instruction back again. */
5399 where = fixp->fx_frag->fr_literal + fixp->fx_where;
5400 if (target_big_endian)
5401 insn = bfd_getb32 ((unsigned char *) where);
5402 else
5403 insn = bfd_getl32 ((unsigned char *) where);
5404 if ((value & 3) != 0)
5405 as_bad_where (fixp->fx_file, fixp->fx_line,
5406 _("must branch to an address a multiple of 4"));
5407 if ((offsetT) value < -0x40000000
5408 || (offsetT) value >= 0x40000000)
5409 as_bad_where (fixp->fx_file, fixp->fx_line,
5410 _("@local or @plt branch destination is too far away, %ld bytes"),
5411 (long) value);
5412 insn = insn | (value & 0x03fffffc);
5413 if (target_big_endian)
5414 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5415 else
5416 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5417 }
252b5132
RH		 5418 break;
5419
5420 case BFD_RELOC_VTABLE_INHERIT:
5421 fixp->fx_done = 0;
5422 if (fixp->fx_addsy
5423 && !S_IS_DEFINED (fixp->fx_addsy)
5424 && !S_IS_WEAK (fixp->fx_addsy))
5425 S_SET_WEAK (fixp->fx_addsy);
5426 break;
5427
5428 case BFD_RELOC_VTABLE_ENTRY:
5429 fixp->fx_done = 0;
5430 break;
5431
0baf16f2
AM		 5432#ifdef OBJ_ELF
5433#if BFD_DEFAULT_TARGET_SIZE == 64
5434 /* Generated by reference to `sym@tocbase'. The sym is
5435 ignored by the linker. */
5436 case BFD_RELOC_PPC64_TOC:
5437 fixp->fx_done = 0;
5438 break;
5439#endif
5440#endif
252b5132 5441 default:
bc805888 5442 fprintf (stderr,
99a814a1
AM		 5443 _("Gas failure, reloc value %d\n"), fixp->fx_r_type);
5444 fflush (stderr);
252b5132
RH		 5445 abort ();
5446 }
5447 }
5448
5449#ifdef OBJ_ELF
5450 fixp->fx_addnumber = value;
5451#else
5452 if (fixp->fx_r_type != BFD_RELOC_PPC_TOC16)
5453 fixp->fx_addnumber = 0;
5454 else
5455 {
5456#ifdef TE_PE
5457 fixp->fx_addnumber = 0;
5458#else
5459 /* We want to use the offset within the data segment of the
5460 symbol, not the actual VMA of the symbol. */
5461 fixp->fx_addnumber =
5462 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixp->fx_addsy));
5463#endif
5464 }
5465#endif
5466
5467 return 1;
5468}
5469
5470/* Generate a reloc for a fixup. */
5471
5472arelent *
5473tc_gen_reloc (seg, fixp)
92161534 5474 asection *seg ATTRIBUTE_UNUSED;
252b5132
RH		 5475 fixS *fixp;
5476{
5477 arelent *reloc;
5478
5479 reloc = (arelent *) xmalloc (sizeof (arelent));
5480
49309057
ILT		 5481 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
5482 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
252b5132
RH		 5483 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
5484 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
5485 if (reloc->howto == (reloc_howto_type *) NULL)
5486 {
5487 as_bad_where (fixp->fx_file, fixp->fx_line,
99a814a1
AM		 5488 _("reloc %d not supported by object file format"),
5489 (int) fixp->fx_r_type);
252b5132
RH		 5490 return NULL;
5491 }
5492 reloc->addend = fixp->fx_addnumber;
5493
5494 return reloc;
5495}
GDB Binutils - Deliverables
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