Commit | Line | Data |
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252b5132 | 1 | /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000) |
b7d7dc63 | 2 | Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
0dc93057 | 3 | 2004, 2005, 2006, 2007, 2008, 2009, 2010 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 | |
ec2655a6 | 10 | the Free Software Foundation; either version 3, or (at your option) |
252b5132 RH |
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 | |
4b4da160 NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
252b5132 | 22 | |
252b5132 | 23 | #include "as.h" |
3882b010 | 24 | #include "safe-ctype.h" |
252b5132 | 25 | #include "subsegs.h" |
75e21f08 | 26 | #include "dw2gencfi.h" |
252b5132 RH |
27 | #include "opcode/ppc.h" |
28 | ||
29 | #ifdef OBJ_ELF | |
30 | #include "elf/ppc.h" | |
5d6f4f16 | 31 | #include "dwarf2dbg.h" |
252b5132 RH |
32 | #endif |
33 | ||
34 | #ifdef TE_PE | |
35 | #include "coff/pe.h" | |
36 | #endif | |
37 | ||
38 | /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */ | |
39 | ||
40 | /* Tell the main code what the endianness is. */ | |
41 | extern int target_big_endian; | |
42 | ||
43 | /* Whether or not, we've set target_big_endian. */ | |
44 | static int set_target_endian = 0; | |
45 | ||
46 | /* Whether to use user friendly register names. */ | |
47 | #ifndef TARGET_REG_NAMES_P | |
48 | #ifdef TE_PE | |
b34976b6 | 49 | #define TARGET_REG_NAMES_P TRUE |
252b5132 | 50 | #else |
b34976b6 | 51 | #define TARGET_REG_NAMES_P FALSE |
252b5132 RH |
52 | #endif |
53 | #endif | |
54 | ||
0baf16f2 AM |
55 | /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST, |
56 | HIGHESTA. */ | |
57 | ||
58 | /* #lo(value) denotes the least significant 16 bits of the indicated. */ | |
59 | #define PPC_LO(v) ((v) & 0xffff) | |
60 | ||
61 | /* #hi(value) denotes bits 16 through 31 of the indicated value. */ | |
62 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
63 | ||
64 | /* #ha(value) denotes the high adjusted value: bits 16 through 31 of | |
65 | the indicated value, compensating for #lo() being treated as a | |
66 | signed number. */ | |
15c1449b | 67 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) |
0baf16f2 AM |
68 | |
69 | /* #higher(value) denotes bits 32 through 47 of the indicated value. */ | |
2a98c3a6 | 70 | #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff) |
0baf16f2 AM |
71 | |
72 | /* #highera(value) denotes bits 32 through 47 of the indicated value, | |
73 | compensating for #lo() being treated as a signed number. */ | |
15c1449b | 74 | #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000) |
0baf16f2 AM |
75 | |
76 | /* #highest(value) denotes bits 48 through 63 of the indicated value. */ | |
2a98c3a6 | 77 | #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff) |
0baf16f2 AM |
78 | |
79 | /* #highesta(value) denotes bits 48 through 63 of the indicated value, | |
15c1449b AM |
80 | compensating for #lo being treated as a signed number. */ |
81 | #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000) | |
0baf16f2 AM |
82 | |
83 | #define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000) | |
84 | ||
b34976b6 | 85 | static bfd_boolean reg_names_p = TARGET_REG_NAMES_P; |
252b5132 | 86 | |
98027b10 AM |
87 | static void ppc_macro (char *, const struct powerpc_macro *); |
88 | static void ppc_byte (int); | |
0baf16f2 AM |
89 | |
90 | #if defined (OBJ_XCOFF) || defined (OBJ_ELF) | |
98027b10 AM |
91 | static void ppc_tc (int); |
92 | static void ppc_machine (int); | |
0baf16f2 | 93 | #endif |
252b5132 RH |
94 | |
95 | #ifdef OBJ_XCOFF | |
98027b10 AM |
96 | static void ppc_comm (int); |
97 | static void ppc_bb (int); | |
98 | static void ppc_bc (int); | |
99 | static void ppc_bf (int); | |
100 | static void ppc_biei (int); | |
101 | static void ppc_bs (int); | |
102 | static void ppc_eb (int); | |
103 | static void ppc_ec (int); | |
104 | static void ppc_ef (int); | |
105 | static void ppc_es (int); | |
106 | static void ppc_csect (int); | |
107 | static void ppc_change_csect (symbolS *, offsetT); | |
108 | static void ppc_function (int); | |
109 | static void ppc_extern (int); | |
110 | static void ppc_lglobl (int); | |
c865e45b | 111 | static void ppc_ref (int); |
98027b10 AM |
112 | static void ppc_section (int); |
113 | static void ppc_named_section (int); | |
114 | static void ppc_stabx (int); | |
115 | static void ppc_rename (int); | |
116 | static void ppc_toc (int); | |
117 | static void ppc_xcoff_cons (int); | |
118 | static void ppc_vbyte (int); | |
252b5132 RH |
119 | #endif |
120 | ||
121 | #ifdef OBJ_ELF | |
98027b10 AM |
122 | static void ppc_elf_cons (int); |
123 | static void ppc_elf_rdata (int); | |
124 | static void ppc_elf_lcomm (int); | |
252b5132 RH |
125 | #endif |
126 | ||
127 | #ifdef TE_PE | |
98027b10 AM |
128 | static void ppc_previous (int); |
129 | static void ppc_pdata (int); | |
130 | static void ppc_ydata (int); | |
131 | static void ppc_reldata (int); | |
132 | static void ppc_rdata (int); | |
133 | static void ppc_ualong (int); | |
134 | static void ppc_znop (int); | |
135 | static void ppc_pe_comm (int); | |
136 | static void ppc_pe_section (int); | |
137 | static void ppc_pe_function (int); | |
138 | static void ppc_pe_tocd (int); | |
252b5132 RH |
139 | #endif |
140 | \f | |
141 | /* Generic assembler global variables which must be defined by all | |
142 | targets. */ | |
143 | ||
144 | #ifdef OBJ_ELF | |
145 | /* This string holds the chars that always start a comment. If the | |
146 | pre-processor is disabled, these aren't very useful. The macro | |
147 | tc_comment_chars points to this. We use this, rather than the | |
148 | usual comment_chars, so that we can switch for Solaris conventions. */ | |
149 | static const char ppc_solaris_comment_chars[] = "#!"; | |
150 | static const char ppc_eabi_comment_chars[] = "#"; | |
151 | ||
152 | #ifdef TARGET_SOLARIS_COMMENT | |
153 | const char *ppc_comment_chars = ppc_solaris_comment_chars; | |
154 | #else | |
155 | const char *ppc_comment_chars = ppc_eabi_comment_chars; | |
156 | #endif | |
157 | #else | |
158 | const char comment_chars[] = "#"; | |
159 | #endif | |
160 | ||
161 | /* Characters which start a comment at the beginning of a line. */ | |
162 | const char line_comment_chars[] = "#"; | |
163 | ||
164 | /* Characters which may be used to separate multiple commands on a | |
165 | single line. */ | |
166 | const char line_separator_chars[] = ";"; | |
167 | ||
168 | /* Characters which are used to indicate an exponent in a floating | |
169 | point number. */ | |
170 | const char EXP_CHARS[] = "eE"; | |
171 | ||
172 | /* Characters which mean that a number is a floating point constant, | |
173 | as in 0d1.0. */ | |
174 | const char FLT_CHARS[] = "dD"; | |
5ce8663f | 175 | |
5e02f92e | 176 | /* Anything that can start an operand needs to be mentioned here, |
ac805826 | 177 | to stop the input scrubber eating whitespace. */ |
5e02f92e | 178 | const char ppc_symbol_chars[] = "%["; |
75e21f08 JJ |
179 | |
180 | /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */ | |
181 | int ppc_cie_data_alignment; | |
783de163 AM |
182 | |
183 | /* The type of processor we are assembling for. This is one or more | |
184 | of the PPC_OPCODE flags defined in opcode/ppc.h. */ | |
fa452fa6 | 185 | ppc_cpu_t ppc_cpu = 0; |
01efc3af AM |
186 | |
187 | /* Flags set on encountering toc relocs. */ | |
188 | enum { | |
189 | has_large_toc_reloc = 1, | |
190 | has_small_toc_reloc = 2 | |
191 | } toc_reloc_types; | |
252b5132 RH |
192 | \f |
193 | /* The target specific pseudo-ops which we support. */ | |
194 | ||
195 | const pseudo_typeS md_pseudo_table[] = | |
196 | { | |
197 | /* Pseudo-ops which must be overridden. */ | |
198 | { "byte", ppc_byte, 0 }, | |
199 | ||
200 | #ifdef OBJ_XCOFF | |
201 | /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these | |
202 | legitimately belong in the obj-*.c file. However, XCOFF is based | |
203 | on COFF, and is only implemented for the RS/6000. We just use | |
204 | obj-coff.c, and add what we need here. */ | |
205 | { "comm", ppc_comm, 0 }, | |
206 | { "lcomm", ppc_comm, 1 }, | |
207 | { "bb", ppc_bb, 0 }, | |
208 | { "bc", ppc_bc, 0 }, | |
209 | { "bf", ppc_bf, 0 }, | |
210 | { "bi", ppc_biei, 0 }, | |
211 | { "bs", ppc_bs, 0 }, | |
212 | { "csect", ppc_csect, 0 }, | |
213 | { "data", ppc_section, 'd' }, | |
214 | { "eb", ppc_eb, 0 }, | |
215 | { "ec", ppc_ec, 0 }, | |
216 | { "ef", ppc_ef, 0 }, | |
217 | { "ei", ppc_biei, 1 }, | |
218 | { "es", ppc_es, 0 }, | |
219 | { "extern", ppc_extern, 0 }, | |
220 | { "function", ppc_function, 0 }, | |
221 | { "lglobl", ppc_lglobl, 0 }, | |
c865e45b | 222 | { "ref", ppc_ref, 0 }, |
252b5132 RH |
223 | { "rename", ppc_rename, 0 }, |
224 | { "section", ppc_named_section, 0 }, | |
225 | { "stabx", ppc_stabx, 0 }, | |
226 | { "text", ppc_section, 't' }, | |
227 | { "toc", ppc_toc, 0 }, | |
228 | { "long", ppc_xcoff_cons, 2 }, | |
7f6d05e8 | 229 | { "llong", ppc_xcoff_cons, 3 }, |
252b5132 RH |
230 | { "word", ppc_xcoff_cons, 1 }, |
231 | { "short", ppc_xcoff_cons, 1 }, | |
232 | { "vbyte", ppc_vbyte, 0 }, | |
233 | #endif | |
234 | ||
235 | #ifdef OBJ_ELF | |
0baf16f2 AM |
236 | { "llong", ppc_elf_cons, 8 }, |
237 | { "quad", ppc_elf_cons, 8 }, | |
252b5132 RH |
238 | { "long", ppc_elf_cons, 4 }, |
239 | { "word", ppc_elf_cons, 2 }, | |
240 | { "short", ppc_elf_cons, 2 }, | |
241 | { "rdata", ppc_elf_rdata, 0 }, | |
242 | { "rodata", ppc_elf_rdata, 0 }, | |
243 | { "lcomm", ppc_elf_lcomm, 0 }, | |
244 | #endif | |
245 | ||
246 | #ifdef TE_PE | |
99a814a1 | 247 | /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */ |
252b5132 RH |
248 | { "previous", ppc_previous, 0 }, |
249 | { "pdata", ppc_pdata, 0 }, | |
250 | { "ydata", ppc_ydata, 0 }, | |
251 | { "reldata", ppc_reldata, 0 }, | |
252 | { "rdata", ppc_rdata, 0 }, | |
253 | { "ualong", ppc_ualong, 0 }, | |
254 | { "znop", ppc_znop, 0 }, | |
255 | { "comm", ppc_pe_comm, 0 }, | |
256 | { "lcomm", ppc_pe_comm, 1 }, | |
257 | { "section", ppc_pe_section, 0 }, | |
258 | { "function", ppc_pe_function,0 }, | |
259 | { "tocd", ppc_pe_tocd, 0 }, | |
260 | #endif | |
261 | ||
0baf16f2 | 262 | #if defined (OBJ_XCOFF) || defined (OBJ_ELF) |
252b5132 | 263 | { "tc", ppc_tc, 0 }, |
0baf16f2 AM |
264 | { "machine", ppc_machine, 0 }, |
265 | #endif | |
252b5132 RH |
266 | |
267 | { NULL, NULL, 0 } | |
268 | }; | |
269 | ||
270 | \f | |
99a814a1 AM |
271 | /* Predefined register names if -mregnames (or default for Windows NT). |
272 | In general, there are lots of them, in an attempt to be compatible | |
273 | with a number of other Windows NT assemblers. */ | |
252b5132 RH |
274 | |
275 | /* Structure to hold information about predefined registers. */ | |
276 | struct pd_reg | |
277 | { | |
278 | char *name; | |
279 | int value; | |
280 | }; | |
281 | ||
282 | /* List of registers that are pre-defined: | |
283 | ||
284 | Each general register has predefined names of the form: | |
285 | 1. r<reg_num> which has the value <reg_num>. | |
286 | 2. r.<reg_num> which has the value <reg_num>. | |
287 | ||
252b5132 RH |
288 | Each floating point register has predefined names of the form: |
289 | 1. f<reg_num> which has the value <reg_num>. | |
290 | 2. f.<reg_num> which has the value <reg_num>. | |
291 | ||
7a899fff C |
292 | Each vector unit register has predefined names of the form: |
293 | 1. v<reg_num> which has the value <reg_num>. | |
294 | 2. v.<reg_num> which has the value <reg_num>. | |
295 | ||
252b5132 RH |
296 | Each condition register has predefined names of the form: |
297 | 1. cr<reg_num> which has the value <reg_num>. | |
298 | 2. cr.<reg_num> which has the value <reg_num>. | |
299 | ||
300 | There are individual registers as well: | |
301 | sp or r.sp has the value 1 | |
302 | rtoc or r.toc has the value 2 | |
303 | fpscr has the value 0 | |
304 | xer has the value 1 | |
305 | lr has the value 8 | |
306 | ctr has the value 9 | |
307 | pmr has the value 0 | |
308 | dar has the value 19 | |
309 | dsisr has the value 18 | |
310 | dec has the value 22 | |
311 | sdr1 has the value 25 | |
312 | srr0 has the value 26 | |
313 | srr1 has the value 27 | |
314 | ||
81d4177b | 315 | The table is sorted. Suitable for searching by a binary search. */ |
252b5132 RH |
316 | |
317 | static const struct pd_reg pre_defined_registers[] = | |
318 | { | |
319 | { "cr.0", 0 }, /* Condition Registers */ | |
320 | { "cr.1", 1 }, | |
321 | { "cr.2", 2 }, | |
322 | { "cr.3", 3 }, | |
323 | { "cr.4", 4 }, | |
324 | { "cr.5", 5 }, | |
325 | { "cr.6", 6 }, | |
326 | { "cr.7", 7 }, | |
327 | ||
328 | { "cr0", 0 }, | |
329 | { "cr1", 1 }, | |
330 | { "cr2", 2 }, | |
331 | { "cr3", 3 }, | |
332 | { "cr4", 4 }, | |
333 | { "cr5", 5 }, | |
334 | { "cr6", 6 }, | |
335 | { "cr7", 7 }, | |
336 | ||
337 | { "ctr", 9 }, | |
338 | ||
339 | { "dar", 19 }, /* Data Access Register */ | |
340 | { "dec", 22 }, /* Decrementer */ | |
341 | { "dsisr", 18 }, /* Data Storage Interrupt Status Register */ | |
342 | ||
343 | { "f.0", 0 }, /* Floating point registers */ | |
81d4177b KH |
344 | { "f.1", 1 }, |
345 | { "f.10", 10 }, | |
346 | { "f.11", 11 }, | |
347 | { "f.12", 12 }, | |
348 | { "f.13", 13 }, | |
349 | { "f.14", 14 }, | |
350 | { "f.15", 15 }, | |
351 | { "f.16", 16 }, | |
352 | { "f.17", 17 }, | |
353 | { "f.18", 18 }, | |
354 | { "f.19", 19 }, | |
355 | { "f.2", 2 }, | |
356 | { "f.20", 20 }, | |
357 | { "f.21", 21 }, | |
358 | { "f.22", 22 }, | |
359 | { "f.23", 23 }, | |
360 | { "f.24", 24 }, | |
361 | { "f.25", 25 }, | |
362 | { "f.26", 26 }, | |
363 | { "f.27", 27 }, | |
364 | { "f.28", 28 }, | |
365 | { "f.29", 29 }, | |
366 | { "f.3", 3 }, | |
252b5132 RH |
367 | { "f.30", 30 }, |
368 | { "f.31", 31 }, | |
066be9f7 PB |
369 | |
370 | { "f.32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */ | |
371 | { "f.33", 33 }, | |
372 | { "f.34", 34 }, | |
373 | { "f.35", 35 }, | |
374 | { "f.36", 36 }, | |
375 | { "f.37", 37 }, | |
376 | { "f.38", 38 }, | |
377 | { "f.39", 39 }, | |
81d4177b | 378 | { "f.4", 4 }, |
066be9f7 PB |
379 | { "f.40", 40 }, |
380 | { "f.41", 41 }, | |
381 | { "f.42", 42 }, | |
382 | { "f.43", 43 }, | |
383 | { "f.44", 44 }, | |
384 | { "f.45", 45 }, | |
385 | { "f.46", 46 }, | |
386 | { "f.47", 47 }, | |
387 | { "f.48", 48 }, | |
388 | { "f.49", 49 }, | |
81d4177b | 389 | { "f.5", 5 }, |
066be9f7 PB |
390 | { "f.50", 50 }, |
391 | { "f.51", 51 }, | |
392 | { "f.52", 52 }, | |
393 | { "f.53", 53 }, | |
394 | { "f.54", 54 }, | |
395 | { "f.55", 55 }, | |
396 | { "f.56", 56 }, | |
397 | { "f.57", 57 }, | |
398 | { "f.58", 58 }, | |
399 | { "f.59", 59 }, | |
81d4177b | 400 | { "f.6", 6 }, |
066be9f7 PB |
401 | { "f.60", 60 }, |
402 | { "f.61", 61 }, | |
403 | { "f.62", 62 }, | |
404 | { "f.63", 63 }, | |
81d4177b KH |
405 | { "f.7", 7 }, |
406 | { "f.8", 8 }, | |
407 | { "f.9", 9 }, | |
408 | ||
409 | { "f0", 0 }, | |
410 | { "f1", 1 }, | |
411 | { "f10", 10 }, | |
412 | { "f11", 11 }, | |
413 | { "f12", 12 }, | |
414 | { "f13", 13 }, | |
415 | { "f14", 14 }, | |
416 | { "f15", 15 }, | |
417 | { "f16", 16 }, | |
418 | { "f17", 17 }, | |
419 | { "f18", 18 }, | |
420 | { "f19", 19 }, | |
421 | { "f2", 2 }, | |
422 | { "f20", 20 }, | |
423 | { "f21", 21 }, | |
424 | { "f22", 22 }, | |
425 | { "f23", 23 }, | |
426 | { "f24", 24 }, | |
427 | { "f25", 25 }, | |
428 | { "f26", 26 }, | |
429 | { "f27", 27 }, | |
430 | { "f28", 28 }, | |
431 | { "f29", 29 }, | |
432 | { "f3", 3 }, | |
252b5132 RH |
433 | { "f30", 30 }, |
434 | { "f31", 31 }, | |
066be9f7 PB |
435 | |
436 | { "f32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */ | |
437 | { "f33", 33 }, | |
438 | { "f34", 34 }, | |
439 | { "f35", 35 }, | |
440 | { "f36", 36 }, | |
441 | { "f37", 37 }, | |
442 | { "f38", 38 }, | |
443 | { "f39", 39 }, | |
81d4177b | 444 | { "f4", 4 }, |
066be9f7 PB |
445 | { "f40", 40 }, |
446 | { "f41", 41 }, | |
447 | { "f42", 42 }, | |
448 | { "f43", 43 }, | |
449 | { "f44", 44 }, | |
450 | { "f45", 45 }, | |
451 | { "f46", 46 }, | |
452 | { "f47", 47 }, | |
453 | { "f48", 48 }, | |
454 | { "f49", 49 }, | |
81d4177b | 455 | { "f5", 5 }, |
066be9f7 PB |
456 | { "f50", 50 }, |
457 | { "f51", 51 }, | |
458 | { "f52", 52 }, | |
459 | { "f53", 53 }, | |
460 | { "f54", 54 }, | |
461 | { "f55", 55 }, | |
462 | { "f56", 56 }, | |
463 | { "f57", 57 }, | |
464 | { "f58", 58 }, | |
465 | { "f59", 59 }, | |
81d4177b | 466 | { "f6", 6 }, |
066be9f7 PB |
467 | { "f60", 60 }, |
468 | { "f61", 61 }, | |
469 | { "f62", 62 }, | |
470 | { "f63", 63 }, | |
81d4177b KH |
471 | { "f7", 7 }, |
472 | { "f8", 8 }, | |
473 | { "f9", 9 }, | |
252b5132 RH |
474 | |
475 | { "fpscr", 0 }, | |
476 | ||
c3d65c1c BE |
477 | /* Quantization registers used with pair single instructions. */ |
478 | { "gqr.0", 0 }, | |
479 | { "gqr.1", 1 }, | |
480 | { "gqr.2", 2 }, | |
481 | { "gqr.3", 3 }, | |
482 | { "gqr.4", 4 }, | |
483 | { "gqr.5", 5 }, | |
484 | { "gqr.6", 6 }, | |
485 | { "gqr.7", 7 }, | |
486 | { "gqr0", 0 }, | |
487 | { "gqr1", 1 }, | |
488 | { "gqr2", 2 }, | |
489 | { "gqr3", 3 }, | |
490 | { "gqr4", 4 }, | |
491 | { "gqr5", 5 }, | |
492 | { "gqr6", 6 }, | |
493 | { "gqr7", 7 }, | |
494 | ||
252b5132 RH |
495 | { "lr", 8 }, /* Link Register */ |
496 | ||
497 | { "pmr", 0 }, | |
498 | ||
499 | { "r.0", 0 }, /* General Purpose Registers */ | |
500 | { "r.1", 1 }, | |
501 | { "r.10", 10 }, | |
502 | { "r.11", 11 }, | |
503 | { "r.12", 12 }, | |
504 | { "r.13", 13 }, | |
505 | { "r.14", 14 }, | |
506 | { "r.15", 15 }, | |
507 | { "r.16", 16 }, | |
508 | { "r.17", 17 }, | |
509 | { "r.18", 18 }, | |
510 | { "r.19", 19 }, | |
511 | { "r.2", 2 }, | |
512 | { "r.20", 20 }, | |
513 | { "r.21", 21 }, | |
514 | { "r.22", 22 }, | |
515 | { "r.23", 23 }, | |
516 | { "r.24", 24 }, | |
517 | { "r.25", 25 }, | |
518 | { "r.26", 26 }, | |
519 | { "r.27", 27 }, | |
520 | { "r.28", 28 }, | |
521 | { "r.29", 29 }, | |
522 | { "r.3", 3 }, | |
523 | { "r.30", 30 }, | |
524 | { "r.31", 31 }, | |
525 | { "r.4", 4 }, | |
526 | { "r.5", 5 }, | |
527 | { "r.6", 6 }, | |
528 | { "r.7", 7 }, | |
529 | { "r.8", 8 }, | |
530 | { "r.9", 9 }, | |
531 | ||
532 | { "r.sp", 1 }, /* Stack Pointer */ | |
533 | ||
534 | { "r.toc", 2 }, /* Pointer to the table of contents */ | |
535 | ||
536 | { "r0", 0 }, /* More general purpose registers */ | |
537 | { "r1", 1 }, | |
538 | { "r10", 10 }, | |
539 | { "r11", 11 }, | |
540 | { "r12", 12 }, | |
541 | { "r13", 13 }, | |
542 | { "r14", 14 }, | |
543 | { "r15", 15 }, | |
544 | { "r16", 16 }, | |
545 | { "r17", 17 }, | |
546 | { "r18", 18 }, | |
547 | { "r19", 19 }, | |
548 | { "r2", 2 }, | |
549 | { "r20", 20 }, | |
550 | { "r21", 21 }, | |
551 | { "r22", 22 }, | |
552 | { "r23", 23 }, | |
553 | { "r24", 24 }, | |
554 | { "r25", 25 }, | |
555 | { "r26", 26 }, | |
556 | { "r27", 27 }, | |
557 | { "r28", 28 }, | |
558 | { "r29", 29 }, | |
559 | { "r3", 3 }, | |
560 | { "r30", 30 }, | |
561 | { "r31", 31 }, | |
562 | { "r4", 4 }, | |
563 | { "r5", 5 }, | |
564 | { "r6", 6 }, | |
565 | { "r7", 7 }, | |
566 | { "r8", 8 }, | |
567 | { "r9", 9 }, | |
568 | ||
569 | { "rtoc", 2 }, /* Table of contents */ | |
570 | ||
571 | { "sdr1", 25 }, /* Storage Description Register 1 */ | |
572 | ||
573 | { "sp", 1 }, | |
574 | ||
575 | { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */ | |
576 | { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */ | |
81d4177b | 577 | |
066be9f7 | 578 | { "v.0", 0 }, /* Vector (Altivec/VMX) registers */ |
81d4177b KH |
579 | { "v.1", 1 }, |
580 | { "v.10", 10 }, | |
581 | { "v.11", 11 }, | |
582 | { "v.12", 12 }, | |
583 | { "v.13", 13 }, | |
584 | { "v.14", 14 }, | |
585 | { "v.15", 15 }, | |
586 | { "v.16", 16 }, | |
587 | { "v.17", 17 }, | |
588 | { "v.18", 18 }, | |
589 | { "v.19", 19 }, | |
590 | { "v.2", 2 }, | |
591 | { "v.20", 20 }, | |
592 | { "v.21", 21 }, | |
593 | { "v.22", 22 }, | |
594 | { "v.23", 23 }, | |
595 | { "v.24", 24 }, | |
596 | { "v.25", 25 }, | |
597 | { "v.26", 26 }, | |
598 | { "v.27", 27 }, | |
599 | { "v.28", 28 }, | |
600 | { "v.29", 29 }, | |
601 | { "v.3", 3 }, | |
7a899fff C |
602 | { "v.30", 30 }, |
603 | { "v.31", 31 }, | |
81d4177b KH |
604 | { "v.4", 4 }, |
605 | { "v.5", 5 }, | |
606 | { "v.6", 6 }, | |
607 | { "v.7", 7 }, | |
608 | { "v.8", 8 }, | |
609 | { "v.9", 9 }, | |
7a899fff C |
610 | |
611 | { "v0", 0 }, | |
81d4177b KH |
612 | { "v1", 1 }, |
613 | { "v10", 10 }, | |
614 | { "v11", 11 }, | |
615 | { "v12", 12 }, | |
616 | { "v13", 13 }, | |
617 | { "v14", 14 }, | |
618 | { "v15", 15 }, | |
619 | { "v16", 16 }, | |
620 | { "v17", 17 }, | |
621 | { "v18", 18 }, | |
622 | { "v19", 19 }, | |
623 | { "v2", 2 }, | |
624 | { "v20", 20 }, | |
625 | { "v21", 21 }, | |
626 | { "v22", 22 }, | |
627 | { "v23", 23 }, | |
628 | { "v24", 24 }, | |
629 | { "v25", 25 }, | |
630 | { "v26", 26 }, | |
631 | { "v27", 27 }, | |
632 | { "v28", 28 }, | |
633 | { "v29", 29 }, | |
634 | { "v3", 3 }, | |
7a899fff C |
635 | { "v30", 30 }, |
636 | { "v31", 31 }, | |
81d4177b KH |
637 | { "v4", 4 }, |
638 | { "v5", 5 }, | |
639 | { "v6", 6 }, | |
640 | { "v7", 7 }, | |
641 | { "v8", 8 }, | |
7a899fff | 642 | { "v9", 9 }, |
252b5132 | 643 | |
066be9f7 PB |
644 | { "vs.0", 0 }, /* Vector Scalar (VSX) registers (ISA 2.06). */ |
645 | { "vs.1", 1 }, | |
646 | { "vs.10", 10 }, | |
647 | { "vs.11", 11 }, | |
648 | { "vs.12", 12 }, | |
649 | { "vs.13", 13 }, | |
650 | { "vs.14", 14 }, | |
651 | { "vs.15", 15 }, | |
652 | { "vs.16", 16 }, | |
653 | { "vs.17", 17 }, | |
654 | { "vs.18", 18 }, | |
655 | { "vs.19", 19 }, | |
656 | { "vs.2", 2 }, | |
657 | { "vs.20", 20 }, | |
658 | { "vs.21", 21 }, | |
659 | { "vs.22", 22 }, | |
660 | { "vs.23", 23 }, | |
661 | { "vs.24", 24 }, | |
662 | { "vs.25", 25 }, | |
663 | { "vs.26", 26 }, | |
664 | { "vs.27", 27 }, | |
665 | { "vs.28", 28 }, | |
666 | { "vs.29", 29 }, | |
667 | { "vs.3", 3 }, | |
668 | { "vs.30", 30 }, | |
669 | { "vs.31", 31 }, | |
670 | { "vs.32", 32 }, | |
671 | { "vs.33", 33 }, | |
672 | { "vs.34", 34 }, | |
673 | { "vs.35", 35 }, | |
674 | { "vs.36", 36 }, | |
675 | { "vs.37", 37 }, | |
676 | { "vs.38", 38 }, | |
677 | { "vs.39", 39 }, | |
678 | { "vs.4", 4 }, | |
679 | { "vs.40", 40 }, | |
680 | { "vs.41", 41 }, | |
681 | { "vs.42", 42 }, | |
682 | { "vs.43", 43 }, | |
683 | { "vs.44", 44 }, | |
684 | { "vs.45", 45 }, | |
685 | { "vs.46", 46 }, | |
686 | { "vs.47", 47 }, | |
687 | { "vs.48", 48 }, | |
688 | { "vs.49", 49 }, | |
689 | { "vs.5", 5 }, | |
690 | { "vs.50", 50 }, | |
691 | { "vs.51", 51 }, | |
692 | { "vs.52", 52 }, | |
693 | { "vs.53", 53 }, | |
694 | { "vs.54", 54 }, | |
695 | { "vs.55", 55 }, | |
696 | { "vs.56", 56 }, | |
697 | { "vs.57", 57 }, | |
698 | { "vs.58", 58 }, | |
699 | { "vs.59", 59 }, | |
700 | { "vs.6", 6 }, | |
701 | { "vs.60", 60 }, | |
702 | { "vs.61", 61 }, | |
703 | { "vs.62", 62 }, | |
704 | { "vs.63", 63 }, | |
705 | { "vs.7", 7 }, | |
706 | { "vs.8", 8 }, | |
707 | { "vs.9", 9 }, | |
708 | ||
709 | { "vs0", 0 }, | |
710 | { "vs1", 1 }, | |
711 | { "vs10", 10 }, | |
712 | { "vs11", 11 }, | |
713 | { "vs12", 12 }, | |
714 | { "vs13", 13 }, | |
715 | { "vs14", 14 }, | |
716 | { "vs15", 15 }, | |
717 | { "vs16", 16 }, | |
718 | { "vs17", 17 }, | |
719 | { "vs18", 18 }, | |
720 | { "vs19", 19 }, | |
721 | { "vs2", 2 }, | |
722 | { "vs20", 20 }, | |
723 | { "vs21", 21 }, | |
724 | { "vs22", 22 }, | |
725 | { "vs23", 23 }, | |
726 | { "vs24", 24 }, | |
727 | { "vs25", 25 }, | |
728 | { "vs26", 26 }, | |
729 | { "vs27", 27 }, | |
730 | { "vs28", 28 }, | |
731 | { "vs29", 29 }, | |
732 | { "vs3", 3 }, | |
733 | { "vs30", 30 }, | |
734 | { "vs31", 31 }, | |
735 | { "vs32", 32 }, | |
736 | { "vs33", 33 }, | |
737 | { "vs34", 34 }, | |
738 | { "vs35", 35 }, | |
739 | { "vs36", 36 }, | |
740 | { "vs37", 37 }, | |
741 | { "vs38", 38 }, | |
742 | { "vs39", 39 }, | |
743 | { "vs4", 4 }, | |
744 | { "vs40", 40 }, | |
745 | { "vs41", 41 }, | |
746 | { "vs42", 42 }, | |
747 | { "vs43", 43 }, | |
748 | { "vs44", 44 }, | |
749 | { "vs45", 45 }, | |
750 | { "vs46", 46 }, | |
751 | { "vs47", 47 }, | |
752 | { "vs48", 48 }, | |
753 | { "vs49", 49 }, | |
754 | { "vs5", 5 }, | |
755 | { "vs50", 50 }, | |
756 | { "vs51", 51 }, | |
757 | { "vs52", 52 }, | |
758 | { "vs53", 53 }, | |
759 | { "vs54", 54 }, | |
760 | { "vs55", 55 }, | |
761 | { "vs56", 56 }, | |
762 | { "vs57", 57 }, | |
763 | { "vs58", 58 }, | |
764 | { "vs59", 59 }, | |
765 | { "vs6", 6 }, | |
766 | { "vs60", 60 }, | |
767 | { "vs61", 61 }, | |
768 | { "vs62", 62 }, | |
769 | { "vs63", 63 }, | |
770 | { "vs7", 7 }, | |
771 | { "vs8", 8 }, | |
772 | { "vs9", 9 }, | |
773 | ||
252b5132 RH |
774 | { "xer", 1 }, |
775 | ||
776 | }; | |
777 | ||
bc805888 | 778 | #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg)) |
252b5132 RH |
779 | |
780 | /* Given NAME, find the register number associated with that name, return | |
781 | the integer value associated with the given name or -1 on failure. */ | |
782 | ||
252b5132 | 783 | static int |
98027b10 | 784 | reg_name_search (const struct pd_reg *regs, int regcount, const char *name) |
252b5132 RH |
785 | { |
786 | int middle, low, high; | |
787 | int cmp; | |
788 | ||
789 | low = 0; | |
790 | high = regcount - 1; | |
791 | ||
792 | do | |
793 | { | |
794 | middle = (low + high) / 2; | |
795 | cmp = strcasecmp (name, regs[middle].name); | |
796 | if (cmp < 0) | |
797 | high = middle - 1; | |
798 | else if (cmp > 0) | |
799 | low = middle + 1; | |
800 | else | |
801 | return regs[middle].value; | |
802 | } | |
803 | while (low <= high); | |
804 | ||
805 | return -1; | |
806 | } | |
807 | ||
808 | /* | |
99a814a1 | 809 | * Summary of register_name. |
252b5132 RH |
810 | * |
811 | * in: Input_line_pointer points to 1st char of operand. | |
812 | * | |
813 | * out: A expressionS. | |
814 | * The operand may have been a register: in this case, X_op == O_register, | |
815 | * X_add_number is set to the register number, and truth is returned. | |
816 | * Input_line_pointer->(next non-blank) char after operand, or is in its | |
817 | * original state. | |
818 | */ | |
819 | ||
b34976b6 | 820 | static bfd_boolean |
98027b10 | 821 | register_name (expressionS *expressionP) |
252b5132 RH |
822 | { |
823 | int reg_number; | |
824 | char *name; | |
825 | char *start; | |
826 | char c; | |
827 | ||
99a814a1 | 828 | /* Find the spelling of the operand. */ |
252b5132 | 829 | start = name = input_line_pointer; |
3882b010 | 830 | if (name[0] == '%' && ISALPHA (name[1])) |
252b5132 RH |
831 | name = ++input_line_pointer; |
832 | ||
3882b010 | 833 | else if (!reg_names_p || !ISALPHA (name[0])) |
b34976b6 | 834 | return FALSE; |
252b5132 RH |
835 | |
836 | c = get_symbol_end (); | |
837 | reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name); | |
838 | ||
468cced8 AM |
839 | /* Put back the delimiting char. */ |
840 | *input_line_pointer = c; | |
841 | ||
99a814a1 | 842 | /* Look to see if it's in the register table. */ |
81d4177b | 843 | if (reg_number >= 0) |
252b5132 RH |
844 | { |
845 | expressionP->X_op = O_register; | |
846 | expressionP->X_add_number = reg_number; | |
81d4177b | 847 | |
99a814a1 | 848 | /* Make the rest nice. */ |
252b5132 RH |
849 | expressionP->X_add_symbol = NULL; |
850 | expressionP->X_op_symbol = NULL; | |
b34976b6 | 851 | return TRUE; |
252b5132 | 852 | } |
468cced8 AM |
853 | |
854 | /* Reset the line as if we had not done anything. */ | |
855 | input_line_pointer = start; | |
b34976b6 | 856 | return FALSE; |
252b5132 RH |
857 | } |
858 | \f | |
859 | /* This function is called for each symbol seen in an expression. It | |
860 | handles the special parsing which PowerPC assemblers are supposed | |
861 | to use for condition codes. */ | |
862 | ||
863 | /* Whether to do the special parsing. */ | |
b34976b6 | 864 | static bfd_boolean cr_operand; |
252b5132 RH |
865 | |
866 | /* Names to recognize in a condition code. This table is sorted. */ | |
867 | static const struct pd_reg cr_names[] = | |
868 | { | |
869 | { "cr0", 0 }, | |
870 | { "cr1", 1 }, | |
871 | { "cr2", 2 }, | |
872 | { "cr3", 3 }, | |
873 | { "cr4", 4 }, | |
874 | { "cr5", 5 }, | |
875 | { "cr6", 6 }, | |
876 | { "cr7", 7 }, | |
877 | { "eq", 2 }, | |
878 | { "gt", 1 }, | |
879 | { "lt", 0 }, | |
880 | { "so", 3 }, | |
881 | { "un", 3 } | |
882 | }; | |
883 | ||
884 | /* Parsing function. This returns non-zero if it recognized an | |
885 | expression. */ | |
886 | ||
887 | int | |
91d6fa6a | 888 | ppc_parse_name (const char *name, expressionS *exp) |
252b5132 RH |
889 | { |
890 | int val; | |
891 | ||
892 | if (! cr_operand) | |
893 | return 0; | |
894 | ||
13abbae3 AM |
895 | if (*name == '%') |
896 | ++name; | |
252b5132 RH |
897 | val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0], |
898 | name); | |
899 | if (val < 0) | |
900 | return 0; | |
901 | ||
91d6fa6a NC |
902 | exp->X_op = O_constant; |
903 | exp->X_add_number = val; | |
252b5132 RH |
904 | |
905 | return 1; | |
906 | } | |
907 | \f | |
908 | /* Local variables. */ | |
909 | ||
2b3c4602 AM |
910 | /* Whether to target xcoff64/elf64. */ |
911 | static unsigned int ppc_obj64 = BFD_DEFAULT_TARGET_SIZE == 64; | |
7f6d05e8 | 912 | |
252b5132 RH |
913 | /* Opcode hash table. */ |
914 | static struct hash_control *ppc_hash; | |
915 | ||
916 | /* Macro hash table. */ | |
917 | static struct hash_control *ppc_macro_hash; | |
918 | ||
919 | #ifdef OBJ_ELF | |
99a814a1 | 920 | /* What type of shared library support to use. */ |
5d6f4f16 | 921 | static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE; |
252b5132 | 922 | |
99a814a1 | 923 | /* Flags to set in the elf header. */ |
252b5132 RH |
924 | static flagword ppc_flags = 0; |
925 | ||
926 | /* Whether this is Solaris or not. */ | |
927 | #ifdef TARGET_SOLARIS_COMMENT | |
b34976b6 | 928 | #define SOLARIS_P TRUE |
252b5132 | 929 | #else |
b34976b6 | 930 | #define SOLARIS_P FALSE |
252b5132 RH |
931 | #endif |
932 | ||
b34976b6 | 933 | static bfd_boolean msolaris = SOLARIS_P; |
252b5132 RH |
934 | #endif |
935 | ||
936 | #ifdef OBJ_XCOFF | |
937 | ||
938 | /* The RS/6000 assembler uses the .csect pseudo-op to generate code | |
939 | using a bunch of different sections. These assembler sections, | |
940 | however, are all encompassed within the .text or .data sections of | |
941 | the final output file. We handle this by using different | |
942 | subsegments within these main segments. */ | |
943 | ||
944 | /* Next subsegment to allocate within the .text segment. */ | |
945 | static subsegT ppc_text_subsegment = 2; | |
946 | ||
947 | /* Linked list of csects in the text section. */ | |
948 | static symbolS *ppc_text_csects; | |
949 | ||
950 | /* Next subsegment to allocate within the .data segment. */ | |
951 | static subsegT ppc_data_subsegment = 2; | |
952 | ||
953 | /* Linked list of csects in the data section. */ | |
954 | static symbolS *ppc_data_csects; | |
955 | ||
956 | /* The current csect. */ | |
957 | static symbolS *ppc_current_csect; | |
958 | ||
959 | /* The RS/6000 assembler uses a TOC which holds addresses of functions | |
960 | and variables. Symbols are put in the TOC with the .tc pseudo-op. | |
961 | A special relocation is used when accessing TOC entries. We handle | |
962 | the TOC as a subsegment within the .data segment. We set it up if | |
963 | we see a .toc pseudo-op, and save the csect symbol here. */ | |
964 | static symbolS *ppc_toc_csect; | |
965 | ||
966 | /* The first frag in the TOC subsegment. */ | |
967 | static fragS *ppc_toc_frag; | |
968 | ||
969 | /* The first frag in the first subsegment after the TOC in the .data | |
970 | segment. NULL if there are no subsegments after the TOC. */ | |
971 | static fragS *ppc_after_toc_frag; | |
972 | ||
973 | /* The current static block. */ | |
974 | static symbolS *ppc_current_block; | |
975 | ||
976 | /* The COFF debugging section; set by md_begin. This is not the | |
977 | .debug section, but is instead the secret BFD section which will | |
978 | cause BFD to set the section number of a symbol to N_DEBUG. */ | |
979 | static asection *ppc_coff_debug_section; | |
980 | ||
981 | #endif /* OBJ_XCOFF */ | |
982 | ||
983 | #ifdef TE_PE | |
984 | ||
985 | /* Various sections that we need for PE coff support. */ | |
986 | static segT ydata_section; | |
987 | static segT pdata_section; | |
988 | static segT reldata_section; | |
989 | static segT rdata_section; | |
990 | static segT tocdata_section; | |
991 | ||
81d4177b | 992 | /* The current section and the previous section. See ppc_previous. */ |
252b5132 RH |
993 | static segT ppc_previous_section; |
994 | static segT ppc_current_section; | |
995 | ||
996 | #endif /* TE_PE */ | |
997 | ||
998 | #ifdef OBJ_ELF | |
999 | symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */ | |
6a0c61b7 EZ |
1000 | #define PPC_APUINFO_ISEL 0x40 |
1001 | #define PPC_APUINFO_PMR 0x41 | |
1002 | #define PPC_APUINFO_RFMCI 0x42 | |
1003 | #define PPC_APUINFO_CACHELCK 0x43 | |
1004 | #define PPC_APUINFO_SPE 0x100 | |
1005 | #define PPC_APUINFO_EFS 0x101 | |
1006 | #define PPC_APUINFO_BRLOCK 0x102 | |
1007 | ||
b34976b6 AM |
1008 | /* |
1009 | * We keep a list of APUinfo | |
6a0c61b7 EZ |
1010 | */ |
1011 | unsigned long *ppc_apuinfo_list; | |
1012 | unsigned int ppc_apuinfo_num; | |
1013 | unsigned int ppc_apuinfo_num_alloc; | |
252b5132 RH |
1014 | #endif /* OBJ_ELF */ |
1015 | \f | |
1016 | #ifdef OBJ_ELF | |
15c1449b | 1017 | const char *const md_shortopts = "b:l:usm:K:VQ:"; |
252b5132 | 1018 | #else |
15c1449b | 1019 | const char *const md_shortopts = "um:"; |
252b5132 | 1020 | #endif |
15c1449b | 1021 | const struct option md_longopts[] = { |
252b5132 RH |
1022 | {NULL, no_argument, NULL, 0} |
1023 | }; | |
15c1449b | 1024 | const size_t md_longopts_size = sizeof (md_longopts); |
252b5132 RH |
1025 | |
1026 | int | |
98027b10 | 1027 | md_parse_option (int c, char *arg) |
252b5132 | 1028 | { |
69fe9ce5 AM |
1029 | ppc_cpu_t new_cpu; |
1030 | ||
252b5132 RH |
1031 | switch (c) |
1032 | { | |
1033 | case 'u': | |
1034 | /* -u means that any undefined symbols should be treated as | |
1035 | external, which is the default for gas anyhow. */ | |
1036 | break; | |
1037 | ||
1038 | #ifdef OBJ_ELF | |
1039 | case 'l': | |
1040 | /* Solaris as takes -le (presumably for little endian). For completeness | |
99a814a1 | 1041 | sake, recognize -be also. */ |
252b5132 RH |
1042 | if (strcmp (arg, "e") == 0) |
1043 | { | |
1044 | target_big_endian = 0; | |
1045 | set_target_endian = 1; | |
1046 | } | |
1047 | else | |
1048 | return 0; | |
1049 | ||
1050 | break; | |
1051 | ||
1052 | case 'b': | |
1053 | if (strcmp (arg, "e") == 0) | |
1054 | { | |
1055 | target_big_endian = 1; | |
1056 | set_target_endian = 1; | |
1057 | } | |
1058 | else | |
1059 | return 0; | |
1060 | ||
1061 | break; | |
1062 | ||
1063 | case 'K': | |
99a814a1 | 1064 | /* Recognize -K PIC. */ |
252b5132 RH |
1065 | if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0) |
1066 | { | |
1067 | shlib = SHLIB_PIC; | |
1068 | ppc_flags |= EF_PPC_RELOCATABLE_LIB; | |
1069 | } | |
1070 | else | |
1071 | return 0; | |
1072 | ||
1073 | break; | |
1074 | #endif | |
1075 | ||
7f6d05e8 CP |
1076 | /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */ |
1077 | case 'a': | |
1078 | if (strcmp (arg, "64") == 0) | |
2a98c3a6 AM |
1079 | { |
1080 | #ifdef BFD64 | |
1081 | ppc_obj64 = 1; | |
1082 | #else | |
1083 | as_fatal (_("%s unsupported"), "-a64"); | |
1084 | #endif | |
1085 | } | |
7f6d05e8 | 1086 | else if (strcmp (arg, "32") == 0) |
2b3c4602 | 1087 | ppc_obj64 = 0; |
7f6d05e8 CP |
1088 | else |
1089 | return 0; | |
1090 | break; | |
81d4177b | 1091 | |
252b5132 | 1092 | case 'm': |
69fe9ce5 AM |
1093 | if ((new_cpu = ppc_parse_cpu (ppc_cpu, arg)) != 0) |
1094 | ppc_cpu = new_cpu; | |
252b5132 RH |
1095 | |
1096 | else if (strcmp (arg, "regnames") == 0) | |
b34976b6 | 1097 | reg_names_p = TRUE; |
252b5132 RH |
1098 | |
1099 | else if (strcmp (arg, "no-regnames") == 0) | |
b34976b6 | 1100 | reg_names_p = FALSE; |
252b5132 RH |
1101 | |
1102 | #ifdef OBJ_ELF | |
99a814a1 AM |
1103 | /* -mrelocatable/-mrelocatable-lib -- warn about initializations |
1104 | that require relocation. */ | |
252b5132 RH |
1105 | else if (strcmp (arg, "relocatable") == 0) |
1106 | { | |
5d6f4f16 | 1107 | shlib = SHLIB_MRELOCATABLE; |
252b5132 RH |
1108 | ppc_flags |= EF_PPC_RELOCATABLE; |
1109 | } | |
1110 | ||
1111 | else if (strcmp (arg, "relocatable-lib") == 0) | |
1112 | { | |
5d6f4f16 | 1113 | shlib = SHLIB_MRELOCATABLE; |
252b5132 RH |
1114 | ppc_flags |= EF_PPC_RELOCATABLE_LIB; |
1115 | } | |
1116 | ||
99a814a1 | 1117 | /* -memb, set embedded bit. */ |
252b5132 RH |
1118 | else if (strcmp (arg, "emb") == 0) |
1119 | ppc_flags |= EF_PPC_EMB; | |
1120 | ||
99a814a1 AM |
1121 | /* -mlittle/-mbig set the endianess. */ |
1122 | else if (strcmp (arg, "little") == 0 | |
1123 | || strcmp (arg, "little-endian") == 0) | |
252b5132 RH |
1124 | { |
1125 | target_big_endian = 0; | |
1126 | set_target_endian = 1; | |
1127 | } | |
1128 | ||
1129 | else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0) | |
1130 | { | |
1131 | target_big_endian = 1; | |
1132 | set_target_endian = 1; | |
1133 | } | |
1134 | ||
1135 | else if (strcmp (arg, "solaris") == 0) | |
1136 | { | |
b34976b6 | 1137 | msolaris = TRUE; |
252b5132 RH |
1138 | ppc_comment_chars = ppc_solaris_comment_chars; |
1139 | } | |
1140 | ||
1141 | else if (strcmp (arg, "no-solaris") == 0) | |
1142 | { | |
b34976b6 | 1143 | msolaris = FALSE; |
252b5132 RH |
1144 | ppc_comment_chars = ppc_eabi_comment_chars; |
1145 | } | |
1146 | #endif | |
1147 | else | |
1148 | { | |
1149 | as_bad (_("invalid switch -m%s"), arg); | |
1150 | return 0; | |
1151 | } | |
1152 | break; | |
1153 | ||
1154 | #ifdef OBJ_ELF | |
1155 | /* -V: SVR4 argument to print version ID. */ | |
1156 | case 'V': | |
1157 | print_version_id (); | |
1158 | break; | |
1159 | ||
1160 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section | |
1161 | should be emitted or not. FIXME: Not implemented. */ | |
1162 | case 'Q': | |
1163 | break; | |
1164 | ||
1165 | /* Solaris takes -s to specify that .stabs go in a .stabs section, | |
1166 | rather than .stabs.excl, which is ignored by the linker. | |
1167 | FIXME: Not implemented. */ | |
1168 | case 's': | |
1169 | if (arg) | |
1170 | return 0; | |
1171 | ||
1172 | break; | |
1173 | #endif | |
1174 | ||
1175 | default: | |
1176 | return 0; | |
1177 | } | |
1178 | ||
1179 | return 1; | |
1180 | } | |
1181 | ||
1182 | void | |
98027b10 | 1183 | md_show_usage (FILE *stream) |
252b5132 | 1184 | { |
bc805888 | 1185 | fprintf (stream, _("\ |
252b5132 | 1186 | PowerPC options:\n\ |
ce3d2015 AM |
1187 | -a32 generate ELF32/XCOFF32\n\ |
1188 | -a64 generate ELF64/XCOFF64\n\ | |
1189 | -u ignored\n\ | |
1190 | -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\ | |
1191 | -mpwr generate code for POWER (RIOS1)\n\ | |
1192 | -m601 generate code for PowerPC 601\n\ | |
418c1742 | 1193 | -mppc, -mppc32, -m603, -m604\n\ |
ce3d2015 AM |
1194 | generate code for PowerPC 603/604\n\ |
1195 | -m403 generate code for PowerPC 403\n\ | |
1196 | -m405 generate code for PowerPC 405\n\ | |
1197 | -m440 generate code for PowerPC 440\n\ | |
1198 | -m464 generate code for PowerPC 464\n\ | |
1199 | -m476 generate code for PowerPC 476\n\ | |
f5c120c5 | 1200 | -m7400, -m7410, -m7450, -m7455\n\ |
ce3d2015 AM |
1201 | generate code for PowerPC 7400/7410/7450/7455\n\ |
1202 | -m750cl generate code for PowerPC 750cl\n")); | |
df12615d | 1203 | fprintf (stream, _("\ |
ce3d2015 AM |
1204 | -mppc64, -m620 generate code for PowerPC 620/625/630\n\ |
1205 | -mppc64bridge generate code for PowerPC 64, including bridge insns\n\ | |
1206 | -mbooke generate code for 32-bit PowerPC BookE\n\ | |
1207 | -ma2 generate code for A2 architecture\n\ | |
cdc51b07 RS |
1208 | -mpower4, -mpwr4 generate code for Power4 architecture\n\ |
1209 | -mpower5, -mpwr5, -mpwr5x\n\ | |
1210 | generate code for Power5 architecture\n\ | |
1211 | -mpower6, -mpwr6 generate code for Power6 architecture\n\ | |
1212 | -mpower7, -mpwr7 generate code for Power7 architecture\n\ | |
ce3d2015 AM |
1213 | -mcell generate code for Cell Broadband Engine architecture\n\ |
1214 | -mcom generate code Power/PowerPC common instructions\n\ | |
1215 | -many generate code for any architecture (PWR/PWRX/PPC)\n")); | |
6a0c61b7 | 1216 | fprintf (stream, _("\ |
ce3d2015 AM |
1217 | -maltivec generate code for AltiVec\n\ |
1218 | -mvsx generate code for Vector-Scalar (VSX) instructions\n\ | |
1219 | -me300 generate code for PowerPC e300 family\n\ | |
1220 | -me500, -me500x2 generate code for Motorola e500 core complex\n\ | |
1221 | -me500mc, generate code for Freescale e500mc core complex\n\ | |
1222 | -me500mc64, generate code for Freescale e500mc64 core complex\n\ | |
1223 | -mspe generate code for Motorola SPE instructions\n\ | |
1224 | -mtitan generate code for AppliedMicro Titan core complex\n\ | |
1225 | -mregnames Allow symbolic names for registers\n\ | |
1226 | -mno-regnames Do not allow symbolic names for registers\n")); | |
252b5132 | 1227 | #ifdef OBJ_ELF |
bc805888 | 1228 | fprintf (stream, _("\ |
ce3d2015 AM |
1229 | -mrelocatable support for GCC's -mrelocatble option\n\ |
1230 | -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\ | |
1231 | -memb set PPC_EMB bit in ELF flags\n\ | |
df12615d | 1232 | -mlittle, -mlittle-endian, -l, -le\n\ |
ce3d2015 | 1233 | generate code for a little endian machine\n\ |
df12615d | 1234 | -mbig, -mbig-endian, -b, -be\n\ |
ce3d2015 AM |
1235 | generate code for a big endian machine\n\ |
1236 | -msolaris generate code for Solaris\n\ | |
1237 | -mno-solaris do not generate code for Solaris\n\ | |
1238 | -V print assembler version number\n\ | |
1239 | -Qy, -Qn ignored\n")); | |
252b5132 RH |
1240 | #endif |
1241 | } | |
1242 | \f | |
1243 | /* Set ppc_cpu if it is not already set. */ | |
1244 | ||
1245 | static void | |
98027b10 | 1246 | ppc_set_cpu (void) |
252b5132 RH |
1247 | { |
1248 | const char *default_os = TARGET_OS; | |
1249 | const char *default_cpu = TARGET_CPU; | |
1250 | ||
7102e95e | 1251 | if ((ppc_cpu & ~(ppc_cpu_t) PPC_OPCODE_ANY) == 0) |
252b5132 | 1252 | { |
2a98c3a6 | 1253 | if (ppc_obj64) |
bdc70b4a | 1254 | ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_64; |
2a98c3a6 AM |
1255 | else if (strncmp (default_os, "aix", 3) == 0 |
1256 | && default_os[3] >= '4' && default_os[3] <= '9') | |
bdc70b4a | 1257 | ppc_cpu |= PPC_OPCODE_COMMON; |
252b5132 | 1258 | else if (strncmp (default_os, "aix3", 4) == 0) |
bdc70b4a | 1259 | ppc_cpu |= PPC_OPCODE_POWER; |
252b5132 | 1260 | else if (strcmp (default_cpu, "rs6000") == 0) |
bdc70b4a | 1261 | ppc_cpu |= PPC_OPCODE_POWER; |
0baf16f2 | 1262 | else if (strncmp (default_cpu, "powerpc", 7) == 0) |
bdc70b4a | 1263 | ppc_cpu |= PPC_OPCODE_PPC; |
252b5132 | 1264 | else |
99a814a1 AM |
1265 | as_fatal (_("Unknown default cpu = %s, os = %s"), |
1266 | default_cpu, default_os); | |
252b5132 RH |
1267 | } |
1268 | } | |
1269 | ||
9232bbb0 AM |
1270 | /* Figure out the BFD architecture to use. This function and ppc_mach |
1271 | are called well before md_begin, when the output file is opened. */ | |
252b5132 RH |
1272 | |
1273 | enum bfd_architecture | |
98027b10 | 1274 | ppc_arch (void) |
252b5132 RH |
1275 | { |
1276 | const char *default_cpu = TARGET_CPU; | |
1277 | ppc_set_cpu (); | |
1278 | ||
1279 | if ((ppc_cpu & PPC_OPCODE_PPC) != 0) | |
1280 | return bfd_arch_powerpc; | |
1281 | else if ((ppc_cpu & PPC_OPCODE_POWER) != 0) | |
1282 | return bfd_arch_rs6000; | |
1283 | else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0) | |
1284 | { | |
1285 | if (strcmp (default_cpu, "rs6000") == 0) | |
1286 | return bfd_arch_rs6000; | |
0baf16f2 | 1287 | else if (strncmp (default_cpu, "powerpc", 7) == 0) |
252b5132 RH |
1288 | return bfd_arch_powerpc; |
1289 | } | |
1290 | ||
1291 | as_fatal (_("Neither Power nor PowerPC opcodes were selected.")); | |
1292 | return bfd_arch_unknown; | |
1293 | } | |
1294 | ||
7f6d05e8 | 1295 | unsigned long |
98027b10 | 1296 | ppc_mach (void) |
7f6d05e8 | 1297 | { |
2a98c3a6 AM |
1298 | if (ppc_obj64) |
1299 | return bfd_mach_ppc64; | |
1300 | else if (ppc_arch () == bfd_arch_rs6000) | |
1301 | return bfd_mach_rs6k; | |
ce3d2015 AM |
1302 | else if (ppc_cpu & PPC_OPCODE_TITAN) |
1303 | return bfd_mach_ppc_titan; | |
2a98c3a6 AM |
1304 | else |
1305 | return bfd_mach_ppc; | |
7f6d05e8 CP |
1306 | } |
1307 | ||
81d4177b | 1308 | extern char* |
98027b10 | 1309 | ppc_target_format (void) |
7f6d05e8 CP |
1310 | { |
1311 | #ifdef OBJ_COFF | |
1312 | #ifdef TE_PE | |
99a814a1 | 1313 | return target_big_endian ? "pe-powerpc" : "pe-powerpcle"; |
7f6d05e8 | 1314 | #elif TE_POWERMAC |
0baf16f2 | 1315 | return "xcoff-powermac"; |
7f6d05e8 | 1316 | #else |
eb1e0e80 | 1317 | # ifdef TE_AIX5 |
2b3c4602 | 1318 | return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000"); |
eb1e0e80 | 1319 | # else |
2b3c4602 | 1320 | return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000"); |
eb1e0e80 | 1321 | # endif |
7f6d05e8 | 1322 | #endif |
7f6d05e8 CP |
1323 | #endif |
1324 | #ifdef OBJ_ELF | |
9d8504b1 PB |
1325 | # ifdef TE_VXWORKS |
1326 | return "elf32-powerpc-vxworks"; | |
1327 | # else | |
0baf16f2 | 1328 | return (target_big_endian |
2b3c4602 AM |
1329 | ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc") |
1330 | : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle")); | |
9d8504b1 | 1331 | # endif |
7f6d05e8 CP |
1332 | #endif |
1333 | } | |
1334 | ||
69c040df AM |
1335 | /* Insert opcodes and macros into hash tables. Called at startup and |
1336 | for .cpu pseudo. */ | |
252b5132 | 1337 | |
69c040df AM |
1338 | static void |
1339 | ppc_setup_opcodes (void) | |
252b5132 | 1340 | { |
98027b10 | 1341 | const struct powerpc_opcode *op; |
252b5132 RH |
1342 | const struct powerpc_opcode *op_end; |
1343 | const struct powerpc_macro *macro; | |
1344 | const struct powerpc_macro *macro_end; | |
b84bf58a | 1345 | bfd_boolean bad_insn = FALSE; |
252b5132 | 1346 | |
69c040df AM |
1347 | if (ppc_hash != NULL) |
1348 | hash_die (ppc_hash); | |
1349 | if (ppc_macro_hash != NULL) | |
1350 | hash_die (ppc_macro_hash); | |
252b5132 RH |
1351 | |
1352 | /* Insert the opcodes into a hash table. */ | |
1353 | ppc_hash = hash_new (); | |
1354 | ||
c43a438d | 1355 | if (ENABLE_CHECKING) |
b84bf58a | 1356 | { |
c43a438d | 1357 | unsigned int i; |
b84bf58a | 1358 | |
c43a438d AM |
1359 | /* Check operand masks. Code here and in the disassembler assumes |
1360 | all the 1's in the mask are contiguous. */ | |
1361 | for (i = 0; i < num_powerpc_operands; ++i) | |
b84bf58a | 1362 | { |
c43a438d AM |
1363 | unsigned long mask = powerpc_operands[i].bitm; |
1364 | unsigned long right_bit; | |
1365 | unsigned int j; | |
1366 | ||
1367 | right_bit = mask & -mask; | |
1368 | mask += right_bit; | |
1369 | right_bit = mask & -mask; | |
1370 | if (mask != right_bit) | |
1371 | { | |
1372 | as_bad (_("powerpc_operands[%d].bitm invalid"), i); | |
1373 | bad_insn = TRUE; | |
1374 | } | |
1375 | for (j = i + 1; j < num_powerpc_operands; ++j) | |
1376 | if (memcmp (&powerpc_operands[i], &powerpc_operands[j], | |
1377 | sizeof (powerpc_operands[0])) == 0) | |
1378 | { | |
1379 | as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"), | |
1380 | j, i); | |
1381 | bad_insn = TRUE; | |
1382 | } | |
b84bf58a AM |
1383 | } |
1384 | } | |
1385 | ||
252b5132 RH |
1386 | op_end = powerpc_opcodes + powerpc_num_opcodes; |
1387 | for (op = powerpc_opcodes; op < op_end; op++) | |
1388 | { | |
c43a438d | 1389 | if (ENABLE_CHECKING) |
b84bf58a | 1390 | { |
c43a438d AM |
1391 | const unsigned char *o; |
1392 | unsigned long omask = op->mask; | |
8dbcd839 | 1393 | |
d815f1a9 | 1394 | if (op != powerpc_opcodes) |
8dbcd839 | 1395 | { |
d815f1a9 AM |
1396 | /* The major opcodes had better be sorted. Code in the |
1397 | disassembler assumes the insns are sorted according to | |
1398 | major opcode. */ | |
1399 | if (PPC_OP (op[0].opcode) < PPC_OP (op[-1].opcode)) | |
1400 | { | |
1401 | as_bad (_("major opcode is not sorted for %s"), | |
1402 | op->name); | |
1403 | bad_insn = TRUE; | |
1404 | } | |
1405 | ||
1406 | /* Warn if the table isn't more strictly ordered. | |
1407 | Unfortunately it doesn't seem possible to order the | |
1408 | table on much more than the major opcode, which makes | |
1409 | it difficult to implement a binary search in the | |
1410 | disassembler. The problem is that we have multiple | |
1411 | ways to disassemble instructions, and we usually want | |
1412 | to choose a more specific form (with more bits set in | |
1413 | the opcode) than a more general form. eg. all of the | |
1414 | following are equivalent: | |
1415 | bne label # opcode = 0x40820000, mask = 0xff830003 | |
1416 | bf 2,label # opcode = 0x40800000, mask = 0xff800003 | |
1417 | bc 4,2,label # opcode = 0x40000000, mask = 0xfc000003 | |
1418 | ||
1419 | There are also cases where the table needs to be out | |
1420 | of order to disassemble the correct instruction for | |
2f3bb96a | 1421 | processor variants. */ |
d815f1a9 AM |
1422 | else if (0) |
1423 | { | |
1424 | unsigned long t1 = op[0].opcode; | |
1425 | unsigned long t2 = op[-1].opcode; | |
1426 | ||
1427 | if (((t1 ^ t2) & 0xfc0007ff) == 0 | |
1428 | && (t1 & 0xfc0006df) == 0x7c000286) | |
1429 | { | |
1430 | /* spr field is split. */ | |
1431 | t1 = ((t1 & ~0x1ff800) | |
1432 | | ((t1 & 0xf800) << 5) | ((t1 & 0x1f0000) >> 5)); | |
1433 | t2 = ((t2 & ~0x1ff800) | |
1434 | | ((t2 & 0xf800) << 5) | ((t2 & 0x1f0000) >> 5)); | |
1435 | } | |
1436 | if (t1 < t2) | |
1437 | as_warn (_("%s (%08lx %08lx) after %s (%08lx %08lx)"), | |
1438 | op[0].name, op[0].opcode, op[0].mask, | |
1439 | op[-1].name, op[-1].opcode, op[-1].mask); | |
1440 | } | |
8dbcd839 | 1441 | } |
c43a438d AM |
1442 | |
1443 | /* The mask had better not trim off opcode bits. */ | |
1444 | if ((op->opcode & omask) != op->opcode) | |
1445 | { | |
1446 | as_bad (_("mask trims opcode bits for %s"), | |
1447 | op->name); | |
1448 | bad_insn = TRUE; | |
1449 | } | |
1450 | ||
1451 | /* The operands must not overlap the opcode or each other. */ | |
1452 | for (o = op->operands; *o; ++o) | |
1453 | if (*o >= num_powerpc_operands) | |
1454 | { | |
1455 | as_bad (_("operand index error for %s"), | |
1456 | op->name); | |
1457 | bad_insn = TRUE; | |
1458 | } | |
1459 | else | |
b84bf58a | 1460 | { |
c43a438d AM |
1461 | const struct powerpc_operand *operand = &powerpc_operands[*o]; |
1462 | if (operand->shift >= 0) | |
b84bf58a | 1463 | { |
c43a438d AM |
1464 | unsigned long mask = operand->bitm << operand->shift; |
1465 | if (omask & mask) | |
1466 | { | |
1467 | as_bad (_("operand %d overlap in %s"), | |
1468 | (int) (o - op->operands), op->name); | |
1469 | bad_insn = TRUE; | |
1470 | } | |
1471 | omask |= mask; | |
b84bf58a | 1472 | } |
b84bf58a | 1473 | } |
c43a438d | 1474 | } |
252b5132 | 1475 | |
bdc70b4a | 1476 | if ((ppc_cpu & op->flags) != 0 |
1cb0a767 | 1477 | && !(ppc_cpu & op->deprecated)) |
252b5132 RH |
1478 | { |
1479 | const char *retval; | |
1480 | ||
98027b10 | 1481 | retval = hash_insert (ppc_hash, op->name, (void *) op); |
69c040df | 1482 | if (retval != NULL) |
252b5132 | 1483 | { |
b84bf58a | 1484 | as_bad (_("duplicate instruction %s"), |
99a814a1 | 1485 | op->name); |
b84bf58a | 1486 | bad_insn = TRUE; |
252b5132 RH |
1487 | } |
1488 | } | |
1489 | } | |
1490 | ||
3c9030c1 AM |
1491 | if ((ppc_cpu & PPC_OPCODE_ANY) != 0) |
1492 | for (op = powerpc_opcodes; op < op_end; op++) | |
98027b10 | 1493 | hash_insert (ppc_hash, op->name, (void *) op); |
3c9030c1 | 1494 | |
252b5132 RH |
1495 | /* Insert the macros into a hash table. */ |
1496 | ppc_macro_hash = hash_new (); | |
1497 | ||
1498 | macro_end = powerpc_macros + powerpc_num_macros; | |
1499 | for (macro = powerpc_macros; macro < macro_end; macro++) | |
1500 | { | |
33740db9 | 1501 | if ((macro->flags & ppc_cpu) != 0 || (ppc_cpu & PPC_OPCODE_ANY) != 0) |
252b5132 RH |
1502 | { |
1503 | const char *retval; | |
1504 | ||
98027b10 | 1505 | retval = hash_insert (ppc_macro_hash, macro->name, (void *) macro); |
252b5132 RH |
1506 | if (retval != (const char *) NULL) |
1507 | { | |
b84bf58a AM |
1508 | as_bad (_("duplicate macro %s"), macro->name); |
1509 | bad_insn = TRUE; | |
252b5132 RH |
1510 | } |
1511 | } | |
1512 | } | |
1513 | ||
b84bf58a | 1514 | if (bad_insn) |
252b5132 | 1515 | abort (); |
69c040df AM |
1516 | } |
1517 | ||
1518 | /* This function is called when the assembler starts up. It is called | |
1519 | after the options have been parsed and the output file has been | |
1520 | opened. */ | |
1521 | ||
1522 | void | |
98027b10 | 1523 | md_begin (void) |
69c040df AM |
1524 | { |
1525 | ppc_set_cpu (); | |
1526 | ||
1527 | ppc_cie_data_alignment = ppc_obj64 ? -8 : -4; | |
1528 | ||
1529 | #ifdef OBJ_ELF | |
1530 | /* Set the ELF flags if desired. */ | |
1531 | if (ppc_flags && !msolaris) | |
1532 | bfd_set_private_flags (stdoutput, ppc_flags); | |
1533 | #endif | |
1534 | ||
1535 | ppc_setup_opcodes (); | |
252b5132 | 1536 | |
67c1ffbe | 1537 | /* Tell the main code what the endianness is if it is not overridden |
99a814a1 | 1538 | by the user. */ |
252b5132 RH |
1539 | if (!set_target_endian) |
1540 | { | |
1541 | set_target_endian = 1; | |
1542 | target_big_endian = PPC_BIG_ENDIAN; | |
1543 | } | |
1544 | ||
1545 | #ifdef OBJ_XCOFF | |
1546 | ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG); | |
1547 | ||
1548 | /* Create dummy symbols to serve as initial csects. This forces the | |
1549 | text csects to precede the data csects. These symbols will not | |
1550 | be output. */ | |
1551 | ppc_text_csects = symbol_make ("dummy\001"); | |
809ffe0d | 1552 | symbol_get_tc (ppc_text_csects)->within = ppc_text_csects; |
252b5132 | 1553 | ppc_data_csects = symbol_make ("dummy\001"); |
809ffe0d | 1554 | symbol_get_tc (ppc_data_csects)->within = ppc_data_csects; |
252b5132 RH |
1555 | #endif |
1556 | ||
1557 | #ifdef TE_PE | |
1558 | ||
1559 | ppc_current_section = text_section; | |
81d4177b | 1560 | ppc_previous_section = 0; |
252b5132 RH |
1561 | |
1562 | #endif | |
1563 | } | |
1564 | ||
6a0c61b7 | 1565 | void |
98027b10 | 1566 | ppc_cleanup (void) |
6a0c61b7 | 1567 | { |
dc1d03fc | 1568 | #ifdef OBJ_ELF |
6a0c61b7 EZ |
1569 | if (ppc_apuinfo_list == NULL) |
1570 | return; | |
1571 | ||
1572 | /* Ok, so write the section info out. We have this layout: | |
1573 | ||
1574 | byte data what | |
1575 | ---- ---- ---- | |
1576 | 0 8 length of "APUinfo\0" | |
1577 | 4 (n*4) number of APU's (4 bytes each) | |
1578 | 8 2 note type 2 | |
1579 | 12 "APUinfo\0" name | |
1580 | 20 APU#1 first APU's info | |
1581 | 24 APU#2 second APU's info | |
1582 | ... ... | |
1583 | */ | |
1584 | { | |
1585 | char *p; | |
1586 | asection *seg = now_seg; | |
1587 | subsegT subseg = now_subseg; | |
1588 | asection *apuinfo_secp = (asection *) NULL; | |
49181a6a | 1589 | unsigned int i; |
6a0c61b7 EZ |
1590 | |
1591 | /* Create the .PPC.EMB.apuinfo section. */ | |
1592 | apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0); | |
1593 | bfd_set_section_flags (stdoutput, | |
1594 | apuinfo_secp, | |
e1a9cb8e | 1595 | SEC_HAS_CONTENTS | SEC_READONLY); |
6a0c61b7 EZ |
1596 | |
1597 | p = frag_more (4); | |
1598 | md_number_to_chars (p, (valueT) 8, 4); | |
1599 | ||
1600 | p = frag_more (4); | |
e98d298c | 1601 | md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4); |
6a0c61b7 EZ |
1602 | |
1603 | p = frag_more (4); | |
1604 | md_number_to_chars (p, (valueT) 2, 4); | |
1605 | ||
1606 | p = frag_more (8); | |
1607 | strcpy (p, "APUinfo"); | |
1608 | ||
1609 | for (i = 0; i < ppc_apuinfo_num; i++) | |
1610 | { | |
b34976b6 AM |
1611 | p = frag_more (4); |
1612 | md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4); | |
6a0c61b7 EZ |
1613 | } |
1614 | ||
1615 | frag_align (2, 0, 0); | |
1616 | ||
1617 | /* We probably can't restore the current segment, for there likely | |
1618 | isn't one yet... */ | |
1619 | if (seg && subseg) | |
1620 | subseg_set (seg, subseg); | |
1621 | } | |
dc1d03fc | 1622 | #endif |
6a0c61b7 EZ |
1623 | } |
1624 | ||
252b5132 RH |
1625 | /* Insert an operand value into an instruction. */ |
1626 | ||
1627 | static unsigned long | |
a1867a27 AM |
1628 | ppc_insert_operand (unsigned long insn, |
1629 | const struct powerpc_operand *operand, | |
1630 | offsetT val, | |
91d6fa6a | 1631 | ppc_cpu_t cpu, |
a1867a27 AM |
1632 | char *file, |
1633 | unsigned int line) | |
252b5132 | 1634 | { |
b84bf58a | 1635 | long min, max, right; |
eb42fac1 | 1636 | |
b84bf58a AM |
1637 | max = operand->bitm; |
1638 | right = max & -max; | |
1639 | min = 0; | |
1640 | ||
1641 | if ((operand->flags & PPC_OPERAND_SIGNED) != 0) | |
252b5132 | 1642 | { |
b84bf58a | 1643 | if ((operand->flags & PPC_OPERAND_SIGNOPT) == 0) |
931774a9 AM |
1644 | max = (max >> 1) & -right; |
1645 | min = ~max & -right; | |
b84bf58a | 1646 | } |
252b5132 | 1647 | |
b84bf58a | 1648 | if ((operand->flags & PPC_OPERAND_PLUS1) != 0) |
3896c469 | 1649 | max++; |
252b5132 | 1650 | |
b84bf58a | 1651 | if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0) |
a1867a27 AM |
1652 | { |
1653 | long tmp = min; | |
1654 | min = -max; | |
1655 | max = -tmp; | |
1656 | } | |
b84bf58a | 1657 | |
a1867a27 AM |
1658 | if (min <= max) |
1659 | { | |
1660 | /* Some people write constants with the sign extension done by | |
1661 | hand but only up to 32 bits. This shouldn't really be valid, | |
1662 | but, to permit this code to assemble on a 64-bit host, we | |
1663 | sign extend the 32-bit value to 64 bits if so doing makes the | |
1664 | value valid. */ | |
1665 | if (val > max | |
1666 | && (offsetT) (val - 0x80000000 - 0x80000000) >= min | |
1667 | && (offsetT) (val - 0x80000000 - 0x80000000) <= max | |
1668 | && ((val - 0x80000000 - 0x80000000) & (right - 1)) == 0) | |
1669 | val = val - 0x80000000 - 0x80000000; | |
1670 | ||
1671 | /* Similarly, people write expressions like ~(1<<15), and expect | |
1672 | this to be OK for a 32-bit unsigned value. */ | |
1673 | else if (val < min | |
1674 | && (offsetT) (val + 0x80000000 + 0x80000000) >= min | |
1675 | && (offsetT) (val + 0x80000000 + 0x80000000) <= max | |
1676 | && ((val + 0x80000000 + 0x80000000) & (right - 1)) == 0) | |
1677 | val = val + 0x80000000 + 0x80000000; | |
1678 | ||
1679 | else if (val < min | |
1680 | || val > max | |
1681 | || (val & (right - 1)) != 0) | |
1682 | as_bad_value_out_of_range (_("operand"), val, min, max, file, line); | |
1683 | } | |
b84bf58a | 1684 | |
252b5132 RH |
1685 | if (operand->insert) |
1686 | { | |
1687 | const char *errmsg; | |
1688 | ||
1689 | errmsg = NULL; | |
91d6fa6a | 1690 | insn = (*operand->insert) (insn, (long) val, cpu, &errmsg); |
252b5132 | 1691 | if (errmsg != (const char *) NULL) |
ee2c9aa9 | 1692 | as_bad_where (file, line, "%s", errmsg); |
252b5132 RH |
1693 | } |
1694 | else | |
b84bf58a | 1695 | insn |= ((long) val & operand->bitm) << operand->shift; |
252b5132 RH |
1696 | |
1697 | return insn; | |
1698 | } | |
1699 | ||
1700 | \f | |
1701 | #ifdef OBJ_ELF | |
1702 | /* Parse @got, etc. and return the desired relocation. */ | |
1703 | static bfd_reloc_code_real_type | |
98027b10 | 1704 | ppc_elf_suffix (char **str_p, expressionS *exp_p) |
252b5132 RH |
1705 | { |
1706 | struct map_bfd { | |
1707 | char *string; | |
b7d7dc63 AM |
1708 | unsigned int length : 8; |
1709 | unsigned int valid32 : 1; | |
1710 | unsigned int valid64 : 1; | |
1711 | unsigned int reloc; | |
252b5132 RH |
1712 | }; |
1713 | ||
1714 | char ident[20]; | |
1715 | char *str = *str_p; | |
1716 | char *str2; | |
1717 | int ch; | |
1718 | int len; | |
15c1449b | 1719 | const struct map_bfd *ptr; |
252b5132 | 1720 | |
b7d7dc63 AM |
1721 | #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc } |
1722 | #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc } | |
1723 | #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc } | |
252b5132 | 1724 | |
15c1449b | 1725 | static const struct map_bfd mapping[] = { |
b7d7dc63 AM |
1726 | MAP ("l", BFD_RELOC_LO16), |
1727 | MAP ("h", BFD_RELOC_HI16), | |
1728 | MAP ("ha", BFD_RELOC_HI16_S), | |
1729 | MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN), | |
1730 | MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN), | |
1731 | MAP ("got", BFD_RELOC_16_GOTOFF), | |
1732 | MAP ("got@l", BFD_RELOC_LO16_GOTOFF), | |
1733 | MAP ("got@h", BFD_RELOC_HI16_GOTOFF), | |
1734 | MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF), | |
1735 | MAP ("plt@l", BFD_RELOC_LO16_PLTOFF), | |
1736 | MAP ("plt@h", BFD_RELOC_HI16_PLTOFF), | |
1737 | MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF), | |
1738 | MAP ("copy", BFD_RELOC_PPC_COPY), | |
1739 | MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT), | |
1740 | MAP ("sectoff", BFD_RELOC_16_BASEREL), | |
1741 | MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL), | |
1742 | MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL), | |
1743 | MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL), | |
1744 | MAP ("tls", BFD_RELOC_PPC_TLS), | |
1745 | MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD), | |
1746 | MAP ("dtprel", BFD_RELOC_PPC_DTPREL), | |
1747 | MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO), | |
1748 | MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI), | |
1749 | MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA), | |
1750 | MAP ("tprel", BFD_RELOC_PPC_TPREL), | |
1751 | MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO), | |
1752 | MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI), | |
1753 | MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA), | |
1754 | MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16), | |
1755 | MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO), | |
1756 | MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI), | |
1757 | MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA), | |
1758 | MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16), | |
1759 | MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO), | |
1760 | MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI), | |
1761 | MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA), | |
1762 | MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16), | |
1763 | MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO), | |
1764 | MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI), | |
1765 | MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA), | |
1766 | MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16), | |
1767 | MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO), | |
1768 | MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI), | |
1769 | MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA), | |
1770 | MAP32 ("fixup", BFD_RELOC_CTOR), | |
1771 | MAP32 ("plt", BFD_RELOC_24_PLT_PCREL), | |
1772 | MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL), | |
1773 | MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC), | |
1774 | MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC), | |
1775 | MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL), | |
1776 | MAP32 ("sdarel", BFD_RELOC_GPREL16), | |
1777 | MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32), | |
1778 | MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16), | |
1779 | MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO), | |
1780 | MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI), | |
1781 | MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA), | |
1782 | MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16), | |
1783 | MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL), | |
1784 | MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16), | |
1785 | MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21), | |
1786 | MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF), | |
1787 | MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16), | |
1788 | MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO), | |
1789 | MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI), | |
1790 | MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA), | |
1791 | MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD), | |
1792 | MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA), | |
1793 | MAP32 ("xgot", BFD_RELOC_PPC_TOC16), | |
1794 | MAP64 ("higher", BFD_RELOC_PPC64_HIGHER), | |
1795 | MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S), | |
1796 | MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST), | |
1797 | MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S), | |
1798 | MAP64 ("tocbase", BFD_RELOC_PPC64_TOC), | |
1799 | MAP64 ("toc", BFD_RELOC_PPC_TOC16), | |
1800 | MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO), | |
1801 | MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI), | |
1802 | MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA), | |
1803 | MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER), | |
1804 | MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA), | |
1805 | MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST), | |
1806 | MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA), | |
1807 | MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER), | |
1808 | MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA), | |
1809 | MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST), | |
1810 | MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA), | |
1811 | { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED } | |
252b5132 RH |
1812 | }; |
1813 | ||
1814 | if (*str++ != '@') | |
1815 | return BFD_RELOC_UNUSED; | |
1816 | ||
1817 | for (ch = *str, str2 = ident; | |
1818 | (str2 < ident + sizeof (ident) - 1 | |
3882b010 | 1819 | && (ISALNUM (ch) || ch == '@')); |
252b5132 RH |
1820 | ch = *++str) |
1821 | { | |
3882b010 | 1822 | *str2++ = TOLOWER (ch); |
252b5132 RH |
1823 | } |
1824 | ||
1825 | *str2 = '\0'; | |
1826 | len = str2 - ident; | |
1827 | ||
1828 | ch = ident[0]; | |
1829 | for (ptr = &mapping[0]; ptr->length > 0; ptr++) | |
1830 | if (ch == ptr->string[0] | |
1831 | && len == ptr->length | |
b7d7dc63 AM |
1832 | && memcmp (ident, ptr->string, ptr->length) == 0 |
1833 | && (ppc_obj64 ? ptr->valid64 : ptr->valid32)) | |
252b5132 | 1834 | { |
15c1449b AM |
1835 | int reloc = ptr->reloc; |
1836 | ||
727fc41e AM |
1837 | if (!ppc_obj64 && exp_p->X_add_number != 0) |
1838 | { | |
1839 | switch (reloc) | |
1840 | { | |
1841 | case BFD_RELOC_16_GOTOFF: | |
1842 | case BFD_RELOC_LO16_GOTOFF: | |
1843 | case BFD_RELOC_HI16_GOTOFF: | |
1844 | case BFD_RELOC_HI16_S_GOTOFF: | |
1845 | as_warn (_("identifier+constant@got means " | |
1846 | "identifier@got+constant")); | |
1847 | break; | |
1848 | ||
1849 | case BFD_RELOC_PPC_GOT_TLSGD16: | |
1850 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: | |
1851 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: | |
1852 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: | |
1853 | case BFD_RELOC_PPC_GOT_TLSLD16: | |
1854 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: | |
1855 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: | |
1856 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: | |
1857 | case BFD_RELOC_PPC_GOT_DTPREL16: | |
1858 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: | |
1859 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: | |
1860 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: | |
1861 | case BFD_RELOC_PPC_GOT_TPREL16: | |
1862 | case BFD_RELOC_PPC_GOT_TPREL16_LO: | |
1863 | case BFD_RELOC_PPC_GOT_TPREL16_HI: | |
1864 | case BFD_RELOC_PPC_GOT_TPREL16_HA: | |
1865 | as_bad (_("symbol+offset not supported for got tls")); | |
1866 | break; | |
1867 | } | |
1868 | } | |
5f6db75a AM |
1869 | |
1870 | /* Now check for identifier@suffix+constant. */ | |
1871 | if (*str == '-' || *str == '+') | |
252b5132 | 1872 | { |
5f6db75a AM |
1873 | char *orig_line = input_line_pointer; |
1874 | expressionS new_exp; | |
1875 | ||
1876 | input_line_pointer = str; | |
1877 | expression (&new_exp); | |
1878 | if (new_exp.X_op == O_constant) | |
252b5132 | 1879 | { |
5f6db75a AM |
1880 | exp_p->X_add_number += new_exp.X_add_number; |
1881 | str = input_line_pointer; | |
252b5132 | 1882 | } |
5f6db75a AM |
1883 | |
1884 | if (&input_line_pointer != str_p) | |
1885 | input_line_pointer = orig_line; | |
252b5132 | 1886 | } |
252b5132 | 1887 | *str_p = str; |
0baf16f2 | 1888 | |
2b3c4602 | 1889 | if (reloc == (int) BFD_RELOC_PPC64_TOC |
9f2b53d7 AM |
1890 | && exp_p->X_op == O_symbol |
1891 | && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0) | |
0baf16f2 | 1892 | { |
9f2b53d7 AM |
1893 | /* Change the symbol so that the dummy .TOC. symbol can be |
1894 | omitted from the object file. */ | |
0baf16f2 AM |
1895 | exp_p->X_add_symbol = &abs_symbol; |
1896 | } | |
1897 | ||
15c1449b | 1898 | return (bfd_reloc_code_real_type) reloc; |
252b5132 RH |
1899 | } |
1900 | ||
1901 | return BFD_RELOC_UNUSED; | |
1902 | } | |
1903 | ||
99a814a1 AM |
1904 | /* Like normal .long/.short/.word, except support @got, etc. |
1905 | Clobbers input_line_pointer, checks end-of-line. */ | |
252b5132 | 1906 | static void |
98027b10 | 1907 | ppc_elf_cons (int nbytes /* 1=.byte, 2=.word, 4=.long, 8=.llong */) |
252b5132 RH |
1908 | { |
1909 | expressionS exp; | |
1910 | bfd_reloc_code_real_type reloc; | |
1911 | ||
1912 | if (is_it_end_of_statement ()) | |
1913 | { | |
1914 | demand_empty_rest_of_line (); | |
1915 | return; | |
1916 | } | |
1917 | ||
1918 | do | |
1919 | { | |
1920 | expression (&exp); | |
1921 | if (exp.X_op == O_symbol | |
1922 | && *input_line_pointer == '@' | |
99a814a1 AM |
1923 | && (reloc = ppc_elf_suffix (&input_line_pointer, |
1924 | &exp)) != BFD_RELOC_UNUSED) | |
252b5132 | 1925 | { |
99a814a1 AM |
1926 | reloc_howto_type *reloc_howto; |
1927 | int size; | |
1928 | ||
1929 | reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc); | |
1930 | size = bfd_get_reloc_size (reloc_howto); | |
252b5132 RH |
1931 | |
1932 | if (size > nbytes) | |
0baf16f2 AM |
1933 | { |
1934 | as_bad (_("%s relocations do not fit in %d bytes\n"), | |
1935 | reloc_howto->name, nbytes); | |
1936 | } | |
252b5132 RH |
1937 | else |
1938 | { | |
0baf16f2 AM |
1939 | char *p; |
1940 | int offset; | |
252b5132 | 1941 | |
0baf16f2 | 1942 | p = frag_more (nbytes); |
aa0c8c1a | 1943 | memset (p, 0, nbytes); |
0baf16f2 AM |
1944 | offset = 0; |
1945 | if (target_big_endian) | |
1946 | offset = nbytes - size; | |
99a814a1 AM |
1947 | fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size, |
1948 | &exp, 0, reloc); | |
252b5132 RH |
1949 | } |
1950 | } | |
1951 | else | |
1952 | emit_expr (&exp, (unsigned int) nbytes); | |
1953 | } | |
1954 | while (*input_line_pointer++ == ','); | |
1955 | ||
99a814a1 AM |
1956 | /* Put terminator back into stream. */ |
1957 | input_line_pointer--; | |
252b5132 RH |
1958 | demand_empty_rest_of_line (); |
1959 | } | |
1960 | ||
1961 | /* Solaris pseduo op to change to the .rodata section. */ | |
1962 | static void | |
98027b10 | 1963 | ppc_elf_rdata (int xxx) |
252b5132 RH |
1964 | { |
1965 | char *save_line = input_line_pointer; | |
1966 | static char section[] = ".rodata\n"; | |
1967 | ||
99a814a1 | 1968 | /* Just pretend this is .section .rodata */ |
252b5132 RH |
1969 | input_line_pointer = section; |
1970 | obj_elf_section (xxx); | |
1971 | ||
1972 | input_line_pointer = save_line; | |
1973 | } | |
1974 | ||
99a814a1 | 1975 | /* Pseudo op to make file scope bss items. */ |
252b5132 | 1976 | static void |
98027b10 | 1977 | ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED) |
252b5132 | 1978 | { |
98027b10 AM |
1979 | char *name; |
1980 | char c; | |
1981 | char *p; | |
252b5132 | 1982 | offsetT size; |
98027b10 | 1983 | symbolS *symbolP; |
252b5132 RH |
1984 | offsetT align; |
1985 | segT old_sec; | |
1986 | int old_subsec; | |
1987 | char *pfrag; | |
1988 | int align2; | |
1989 | ||
1990 | name = input_line_pointer; | |
1991 | c = get_symbol_end (); | |
1992 | ||
99a814a1 | 1993 | /* just after name is now '\0'. */ |
252b5132 RH |
1994 | p = input_line_pointer; |
1995 | *p = c; | |
1996 | SKIP_WHITESPACE (); | |
1997 | if (*input_line_pointer != ',') | |
1998 | { | |
1999 | as_bad (_("Expected comma after symbol-name: rest of line ignored.")); | |
2000 | ignore_rest_of_line (); | |
2001 | return; | |
2002 | } | |
2003 | ||
2004 | input_line_pointer++; /* skip ',' */ | |
2005 | if ((size = get_absolute_expression ()) < 0) | |
2006 | { | |
2007 | as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size); | |
2008 | ignore_rest_of_line (); | |
2009 | return; | |
2010 | } | |
2011 | ||
2012 | /* The third argument to .lcomm is the alignment. */ | |
2013 | if (*input_line_pointer != ',') | |
2014 | align = 8; | |
2015 | else | |
2016 | { | |
2017 | ++input_line_pointer; | |
2018 | align = get_absolute_expression (); | |
2019 | if (align <= 0) | |
2020 | { | |
2021 | as_warn (_("ignoring bad alignment")); | |
2022 | align = 8; | |
2023 | } | |
2024 | } | |
2025 | ||
2026 | *p = 0; | |
2027 | symbolP = symbol_find_or_make (name); | |
2028 | *p = c; | |
2029 | ||
2030 | if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) | |
2031 | { | |
2032 | as_bad (_("Ignoring attempt to re-define symbol `%s'."), | |
2033 | S_GET_NAME (symbolP)); | |
2034 | ignore_rest_of_line (); | |
2035 | return; | |
2036 | } | |
2037 | ||
2038 | if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size) | |
2039 | { | |
2040 | as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."), | |
2041 | S_GET_NAME (symbolP), | |
2042 | (long) S_GET_VALUE (symbolP), | |
2043 | (long) size); | |
2044 | ||
2045 | ignore_rest_of_line (); | |
2046 | return; | |
2047 | } | |
2048 | ||
99a814a1 | 2049 | /* Allocate_bss. */ |
252b5132 RH |
2050 | old_sec = now_seg; |
2051 | old_subsec = now_subseg; | |
2052 | if (align) | |
2053 | { | |
99a814a1 | 2054 | /* Convert to a power of 2 alignment. */ |
252b5132 RH |
2055 | for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2); |
2056 | if (align != 1) | |
2057 | { | |
2058 | as_bad (_("Common alignment not a power of 2")); | |
2059 | ignore_rest_of_line (); | |
2060 | return; | |
2061 | } | |
2062 | } | |
2063 | else | |
2064 | align2 = 0; | |
2065 | ||
2066 | record_alignment (bss_section, align2); | |
2067 | subseg_set (bss_section, 0); | |
2068 | if (align2) | |
2069 | frag_align (align2, 0, 0); | |
2070 | if (S_GET_SEGMENT (symbolP) == bss_section) | |
49309057 ILT |
2071 | symbol_get_frag (symbolP)->fr_symbol = 0; |
2072 | symbol_set_frag (symbolP, frag_now); | |
252b5132 RH |
2073 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size, |
2074 | (char *) 0); | |
2075 | *pfrag = 0; | |
2076 | S_SET_SIZE (symbolP, size); | |
2077 | S_SET_SEGMENT (symbolP, bss_section); | |
2078 | subseg_set (old_sec, old_subsec); | |
2079 | demand_empty_rest_of_line (); | |
2080 | } | |
2081 | ||
2082 | /* Validate any relocations emitted for -mrelocatable, possibly adding | |
2083 | fixups for word relocations in writable segments, so we can adjust | |
2084 | them at runtime. */ | |
2085 | static void | |
98027b10 | 2086 | ppc_elf_validate_fix (fixS *fixp, segT seg) |
252b5132 RH |
2087 | { |
2088 | if (fixp->fx_done || fixp->fx_pcrel) | |
2089 | return; | |
2090 | ||
2091 | switch (shlib) | |
2092 | { | |
2093 | case SHLIB_NONE: | |
2094 | case SHLIB_PIC: | |
2095 | return; | |
2096 | ||
5d6f4f16 | 2097 | case SHLIB_MRELOCATABLE: |
252b5132 RH |
2098 | if (fixp->fx_r_type <= BFD_RELOC_UNUSED |
2099 | && fixp->fx_r_type != BFD_RELOC_16_GOTOFF | |
2100 | && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF | |
2101 | && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF | |
2102 | && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF | |
1cfc59d5 | 2103 | && fixp->fx_r_type != BFD_RELOC_16_BASEREL |
252b5132 RH |
2104 | && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL |
2105 | && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL | |
2106 | && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL | |
e138127a | 2107 | && (seg->flags & SEC_LOAD) != 0 |
252b5132 RH |
2108 | && strcmp (segment_name (seg), ".got2") != 0 |
2109 | && strcmp (segment_name (seg), ".dtors") != 0 | |
2110 | && strcmp (segment_name (seg), ".ctors") != 0 | |
2111 | && strcmp (segment_name (seg), ".fixup") != 0 | |
252b5132 RH |
2112 | && strcmp (segment_name (seg), ".gcc_except_table") != 0 |
2113 | && strcmp (segment_name (seg), ".eh_frame") != 0 | |
2114 | && strcmp (segment_name (seg), ".ex_shared") != 0) | |
2115 | { | |
2116 | if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0 | |
2117 | || fixp->fx_r_type != BFD_RELOC_CTOR) | |
2118 | { | |
2119 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
2120 | _("Relocation cannot be done when using -mrelocatable")); | |
2121 | } | |
2122 | } | |
2123 | return; | |
2124 | } | |
2125 | } | |
0baf16f2 | 2126 | |
7e8d4ab4 AM |
2127 | /* Prevent elf_frob_file_before_adjust removing a weak undefined |
2128 | function descriptor sym if the corresponding code sym is used. */ | |
2129 | ||
2130 | void | |
98027b10 | 2131 | ppc_frob_file_before_adjust (void) |
0baf16f2 | 2132 | { |
7e8d4ab4 | 2133 | symbolS *symp; |
9232bbb0 | 2134 | asection *toc; |
0baf16f2 | 2135 | |
7e8d4ab4 AM |
2136 | if (!ppc_obj64) |
2137 | return; | |
2138 | ||
2139 | for (symp = symbol_rootP; symp; symp = symbol_next (symp)) | |
0baf16f2 | 2140 | { |
7e8d4ab4 AM |
2141 | const char *name; |
2142 | char *dotname; | |
2143 | symbolS *dotsym; | |
2144 | size_t len; | |
2145 | ||
2146 | name = S_GET_NAME (symp); | |
2147 | if (name[0] == '.') | |
2148 | continue; | |
2149 | ||
2150 | if (! S_IS_WEAK (symp) | |
2151 | || S_IS_DEFINED (symp)) | |
2152 | continue; | |
2153 | ||
2154 | len = strlen (name) + 1; | |
2155 | dotname = xmalloc (len + 1); | |
2156 | dotname[0] = '.'; | |
2157 | memcpy (dotname + 1, name, len); | |
461b725f | 2158 | dotsym = symbol_find_noref (dotname, 1); |
7e8d4ab4 AM |
2159 | free (dotname); |
2160 | if (dotsym != NULL && (symbol_used_p (dotsym) | |
2161 | || symbol_used_in_reloc_p (dotsym))) | |
670ec21d NC |
2162 | symbol_mark_used (symp); |
2163 | ||
0baf16f2 AM |
2164 | } |
2165 | ||
9232bbb0 AM |
2166 | toc = bfd_get_section_by_name (stdoutput, ".toc"); |
2167 | if (toc != NULL | |
01efc3af | 2168 | && toc_reloc_types != has_large_toc_reloc |
9232bbb0 AM |
2169 | && bfd_section_size (stdoutput, toc) > 0x10000) |
2170 | as_warn (_("TOC section size exceeds 64k")); | |
2171 | ||
7e8d4ab4 AM |
2172 | /* Don't emit .TOC. symbol. */ |
2173 | symp = symbol_find (".TOC."); | |
2174 | if (symp != NULL) | |
2175 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); | |
0baf16f2 | 2176 | } |
252b5132 RH |
2177 | #endif /* OBJ_ELF */ |
2178 | \f | |
2179 | #ifdef TE_PE | |
2180 | ||
2181 | /* | |
99a814a1 | 2182 | * Summary of parse_toc_entry. |
252b5132 RH |
2183 | * |
2184 | * in: Input_line_pointer points to the '[' in one of: | |
2185 | * | |
2186 | * [toc] [tocv] [toc32] [toc64] | |
2187 | * | |
2188 | * Anything else is an error of one kind or another. | |
2189 | * | |
81d4177b | 2190 | * out: |
252b5132 RH |
2191 | * return value: success or failure |
2192 | * toc_kind: kind of toc reference | |
2193 | * input_line_pointer: | |
2194 | * success: first char after the ']' | |
2195 | * failure: unchanged | |
2196 | * | |
2197 | * settings: | |
2198 | * | |
2199 | * [toc] - rv == success, toc_kind = default_toc | |
2200 | * [tocv] - rv == success, toc_kind = data_in_toc | |
2201 | * [toc32] - rv == success, toc_kind = must_be_32 | |
2202 | * [toc64] - rv == success, toc_kind = must_be_64 | |
2203 | * | |
2204 | */ | |
2205 | ||
81d4177b KH |
2206 | enum toc_size_qualifier |
2207 | { | |
252b5132 RH |
2208 | default_toc, /* The toc cell constructed should be the system default size */ |
2209 | data_in_toc, /* This is a direct reference to a toc cell */ | |
2210 | must_be_32, /* The toc cell constructed must be 32 bits wide */ | |
2211 | must_be_64 /* The toc cell constructed must be 64 bits wide */ | |
2212 | }; | |
2213 | ||
2214 | static int | |
98027b10 | 2215 | parse_toc_entry (enum toc_size_qualifier *toc_kind) |
252b5132 RH |
2216 | { |
2217 | char *start; | |
2218 | char *toc_spec; | |
2219 | char c; | |
2220 | enum toc_size_qualifier t; | |
2221 | ||
99a814a1 | 2222 | /* Save the input_line_pointer. */ |
252b5132 RH |
2223 | start = input_line_pointer; |
2224 | ||
99a814a1 | 2225 | /* Skip over the '[' , and whitespace. */ |
252b5132 RH |
2226 | ++input_line_pointer; |
2227 | SKIP_WHITESPACE (); | |
81d4177b | 2228 | |
99a814a1 | 2229 | /* Find the spelling of the operand. */ |
252b5132 RH |
2230 | toc_spec = input_line_pointer; |
2231 | c = get_symbol_end (); | |
2232 | ||
99a814a1 | 2233 | if (strcmp (toc_spec, "toc") == 0) |
252b5132 RH |
2234 | { |
2235 | t = default_toc; | |
2236 | } | |
99a814a1 | 2237 | else if (strcmp (toc_spec, "tocv") == 0) |
252b5132 RH |
2238 | { |
2239 | t = data_in_toc; | |
2240 | } | |
99a814a1 | 2241 | else if (strcmp (toc_spec, "toc32") == 0) |
252b5132 RH |
2242 | { |
2243 | t = must_be_32; | |
2244 | } | |
99a814a1 | 2245 | else if (strcmp (toc_spec, "toc64") == 0) |
252b5132 RH |
2246 | { |
2247 | t = must_be_64; | |
2248 | } | |
2249 | else | |
2250 | { | |
2251 | as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec); | |
99a814a1 AM |
2252 | *input_line_pointer = c; |
2253 | input_line_pointer = start; | |
252b5132 RH |
2254 | return 0; |
2255 | } | |
2256 | ||
99a814a1 AM |
2257 | /* Now find the ']'. */ |
2258 | *input_line_pointer = c; | |
252b5132 | 2259 | |
81d4177b KH |
2260 | SKIP_WHITESPACE (); /* leading whitespace could be there. */ |
2261 | c = *input_line_pointer++; /* input_line_pointer->past char in c. */ | |
252b5132 RH |
2262 | |
2263 | if (c != ']') | |
2264 | { | |
2265 | as_bad (_("syntax error: expected `]', found `%c'"), c); | |
99a814a1 | 2266 | input_line_pointer = start; |
252b5132 RH |
2267 | return 0; |
2268 | } | |
2269 | ||
99a814a1 | 2270 | *toc_kind = t; |
252b5132 RH |
2271 | return 1; |
2272 | } | |
2273 | #endif | |
2274 | \f | |
2275 | ||
dc1d03fc | 2276 | #ifdef OBJ_ELF |
6a0c61b7 EZ |
2277 | #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff)) |
2278 | static void | |
98027b10 | 2279 | ppc_apuinfo_section_add (unsigned int apu, unsigned int version) |
6a0c61b7 EZ |
2280 | { |
2281 | unsigned int i; | |
2282 | ||
2283 | /* Check we don't already exist. */ | |
2284 | for (i = 0; i < ppc_apuinfo_num; i++) | |
dc1d03fc | 2285 | if (ppc_apuinfo_list[i] == APUID (apu, version)) |
6a0c61b7 | 2286 | return; |
b34976b6 | 2287 | |
6a0c61b7 EZ |
2288 | if (ppc_apuinfo_num == ppc_apuinfo_num_alloc) |
2289 | { | |
2290 | if (ppc_apuinfo_num_alloc == 0) | |
2291 | { | |
2292 | ppc_apuinfo_num_alloc = 4; | |
2293 | ppc_apuinfo_list = (unsigned long *) | |
2294 | xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc); | |
2295 | } | |
2296 | else | |
2297 | { | |
2298 | ppc_apuinfo_num_alloc += 4; | |
2299 | ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list, | |
2300 | sizeof (unsigned long) * ppc_apuinfo_num_alloc); | |
2301 | } | |
2302 | } | |
dc1d03fc | 2303 | ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version); |
6a0c61b7 EZ |
2304 | } |
2305 | #undef APUID | |
dc1d03fc | 2306 | #endif |
6a0c61b7 EZ |
2307 | \f |
2308 | ||
252b5132 RH |
2309 | /* We need to keep a list of fixups. We can't simply generate them as |
2310 | we go, because that would require us to first create the frag, and | |
2311 | that would screw up references to ``.''. */ | |
2312 | ||
2313 | struct ppc_fixup | |
2314 | { | |
2315 | expressionS exp; | |
2316 | int opindex; | |
2317 | bfd_reloc_code_real_type reloc; | |
2318 | }; | |
2319 | ||
2320 | #define MAX_INSN_FIXUPS (5) | |
2321 | ||
2322 | /* This routine is called for each instruction to be assembled. */ | |
2323 | ||
2324 | void | |
98027b10 | 2325 | md_assemble (char *str) |
252b5132 RH |
2326 | { |
2327 | char *s; | |
2328 | const struct powerpc_opcode *opcode; | |
2329 | unsigned long insn; | |
2330 | const unsigned char *opindex_ptr; | |
2331 | int skip_optional; | |
2332 | int need_paren; | |
2333 | int next_opindex; | |
2334 | struct ppc_fixup fixups[MAX_INSN_FIXUPS]; | |
2335 | int fc; | |
2336 | char *f; | |
09b935ac | 2337 | int addr_mod; |
252b5132 RH |
2338 | int i; |
2339 | #ifdef OBJ_ELF | |
2340 | bfd_reloc_code_real_type reloc; | |
2341 | #endif | |
2342 | ||
2343 | /* Get the opcode. */ | |
3882b010 | 2344 | for (s = str; *s != '\0' && ! ISSPACE (*s); s++) |
252b5132 RH |
2345 | ; |
2346 | if (*s != '\0') | |
2347 | *s++ = '\0'; | |
2348 | ||
2349 | /* Look up the opcode in the hash table. */ | |
2350 | opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str); | |
2351 | if (opcode == (const struct powerpc_opcode *) NULL) | |
2352 | { | |
2353 | const struct powerpc_macro *macro; | |
2354 | ||
2355 | macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str); | |
2356 | if (macro == (const struct powerpc_macro *) NULL) | |
2357 | as_bad (_("Unrecognized opcode: `%s'"), str); | |
2358 | else | |
2359 | ppc_macro (s, macro); | |
2360 | ||
2361 | return; | |
2362 | } | |
2363 | ||
2364 | insn = opcode->opcode; | |
2365 | ||
2366 | str = s; | |
3882b010 | 2367 | while (ISSPACE (*str)) |
252b5132 RH |
2368 | ++str; |
2369 | ||
2370 | /* PowerPC operands are just expressions. The only real issue is | |
2371 | that a few operand types are optional. All cases which might use | |
1f6c9eb0 ZW |
2372 | an optional operand separate the operands only with commas (in some |
2373 | cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never | |
2374 | have optional operands). Most instructions with optional operands | |
2375 | have only one. Those that have more than one optional operand can | |
2376 | take either all their operands or none. So, before we start seriously | |
2377 | parsing the operands, we check to see if we have optional operands, | |
2378 | and if we do, we count the number of commas to see which operands | |
2379 | have been omitted. */ | |
252b5132 RH |
2380 | skip_optional = 0; |
2381 | for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++) | |
2382 | { | |
2383 | const struct powerpc_operand *operand; | |
2384 | ||
2385 | operand = &powerpc_operands[*opindex_ptr]; | |
2386 | if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0) | |
2387 | { | |
2388 | unsigned int opcount; | |
7fe9cf6b | 2389 | unsigned int num_operands_expected; |
252b5132 RH |
2390 | |
2391 | /* There is an optional operand. Count the number of | |
2392 | commas in the input line. */ | |
2393 | if (*str == '\0') | |
2394 | opcount = 0; | |
2395 | else | |
2396 | { | |
2397 | opcount = 1; | |
2398 | s = str; | |
2399 | while ((s = strchr (s, ',')) != (char *) NULL) | |
2400 | { | |
2401 | ++opcount; | |
2402 | ++s; | |
2403 | } | |
2404 | } | |
2405 | ||
7fe9cf6b NC |
2406 | /* Compute the number of expected operands. |
2407 | Do not count fake operands. */ | |
2408 | for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++) | |
2409 | if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0) | |
2410 | ++ num_operands_expected; | |
2411 | ||
252b5132 RH |
2412 | /* If there are fewer operands in the line then are called |
2413 | for by the instruction, we want to skip the optional | |
1f6c9eb0 | 2414 | operands. */ |
7fe9cf6b | 2415 | if (opcount < num_operands_expected) |
252b5132 RH |
2416 | skip_optional = 1; |
2417 | ||
2418 | break; | |
2419 | } | |
2420 | } | |
2421 | ||
2422 | /* Gather the operands. */ | |
2423 | need_paren = 0; | |
2424 | next_opindex = 0; | |
2425 | fc = 0; | |
2426 | for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++) | |
2427 | { | |
2428 | const struct powerpc_operand *operand; | |
2429 | const char *errmsg; | |
2430 | char *hold; | |
2431 | expressionS ex; | |
2432 | char endc; | |
2433 | ||
2434 | if (next_opindex == 0) | |
2435 | operand = &powerpc_operands[*opindex_ptr]; | |
2436 | else | |
2437 | { | |
2438 | operand = &powerpc_operands[next_opindex]; | |
2439 | next_opindex = 0; | |
2440 | } | |
252b5132 RH |
2441 | errmsg = NULL; |
2442 | ||
2443 | /* If this is a fake operand, then we do not expect anything | |
2444 | from the input. */ | |
2445 | if ((operand->flags & PPC_OPERAND_FAKE) != 0) | |
2446 | { | |
2b3c4602 | 2447 | insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg); |
252b5132 | 2448 | if (errmsg != (const char *) NULL) |
ee2c9aa9 | 2449 | as_bad ("%s", errmsg); |
252b5132 RH |
2450 | continue; |
2451 | } | |
2452 | ||
2453 | /* If this is an optional operand, and we are skipping it, just | |
2454 | insert a zero. */ | |
2455 | if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0 | |
2456 | && skip_optional) | |
2457 | { | |
2458 | if (operand->insert) | |
2459 | { | |
2b3c4602 | 2460 | insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg); |
252b5132 | 2461 | if (errmsg != (const char *) NULL) |
ee2c9aa9 | 2462 | as_bad ("%s", errmsg); |
252b5132 RH |
2463 | } |
2464 | if ((operand->flags & PPC_OPERAND_NEXT) != 0) | |
2465 | next_opindex = *opindex_ptr + 1; | |
2466 | continue; | |
2467 | } | |
2468 | ||
2469 | /* Gather the operand. */ | |
2470 | hold = input_line_pointer; | |
2471 | input_line_pointer = str; | |
2472 | ||
2473 | #ifdef TE_PE | |
81d4177b | 2474 | if (*input_line_pointer == '[') |
252b5132 RH |
2475 | { |
2476 | /* We are expecting something like the second argument here: | |
99a814a1 AM |
2477 | * |
2478 | * lwz r4,[toc].GS.0.static_int(rtoc) | |
2479 | * ^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
2480 | * The argument following the `]' must be a symbol name, and the | |
2481 | * register must be the toc register: 'rtoc' or '2' | |
2482 | * | |
2483 | * The effect is to 0 as the displacement field | |
2484 | * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or | |
2485 | * the appropriate variation) reloc against it based on the symbol. | |
2486 | * The linker will build the toc, and insert the resolved toc offset. | |
2487 | * | |
2488 | * Note: | |
2489 | * o The size of the toc entry is currently assumed to be | |
2490 | * 32 bits. This should not be assumed to be a hard coded | |
2491 | * number. | |
2492 | * o In an effort to cope with a change from 32 to 64 bits, | |
2493 | * there are also toc entries that are specified to be | |
2494 | * either 32 or 64 bits: | |
2495 | * lwz r4,[toc32].GS.0.static_int(rtoc) | |
2496 | * lwz r4,[toc64].GS.0.static_int(rtoc) | |
2497 | * These demand toc entries of the specified size, and the | |
2498 | * instruction probably requires it. | |
2499 | */ | |
252b5132 RH |
2500 | |
2501 | int valid_toc; | |
2502 | enum toc_size_qualifier toc_kind; | |
2503 | bfd_reloc_code_real_type toc_reloc; | |
2504 | ||
99a814a1 AM |
2505 | /* Go parse off the [tocXX] part. */ |
2506 | valid_toc = parse_toc_entry (&toc_kind); | |
252b5132 | 2507 | |
81d4177b | 2508 | if (!valid_toc) |
252b5132 | 2509 | { |
99a814a1 AM |
2510 | /* Note: message has already been issued. |
2511 | FIXME: what sort of recovery should we do? | |
2512 | demand_rest_of_line (); return; ? */ | |
252b5132 RH |
2513 | } |
2514 | ||
99a814a1 AM |
2515 | /* Now get the symbol following the ']'. */ |
2516 | expression (&ex); | |
252b5132 RH |
2517 | |
2518 | switch (toc_kind) | |
2519 | { | |
2520 | case default_toc: | |
99a814a1 AM |
2521 | /* In this case, we may not have seen the symbol yet, |
2522 | since it is allowed to appear on a .extern or .globl | |
2523 | or just be a label in the .data section. */ | |
252b5132 RH |
2524 | toc_reloc = BFD_RELOC_PPC_TOC16; |
2525 | break; | |
2526 | case data_in_toc: | |
99a814a1 AM |
2527 | /* 1. The symbol must be defined and either in the toc |
2528 | section, or a global. | |
2529 | 2. The reloc generated must have the TOCDEFN flag set | |
2530 | in upper bit mess of the reloc type. | |
2531 | FIXME: It's a little confusing what the tocv | |
2532 | qualifier can be used for. At the very least, I've | |
2533 | seen three uses, only one of which I'm sure I can | |
2534 | explain. */ | |
81d4177b KH |
2535 | if (ex.X_op == O_symbol) |
2536 | { | |
9c2799c2 | 2537 | gas_assert (ex.X_add_symbol != NULL); |
fed9b18a ILT |
2538 | if (symbol_get_bfdsym (ex.X_add_symbol)->section |
2539 | != tocdata_section) | |
252b5132 | 2540 | { |
99a814a1 | 2541 | as_bad (_("[tocv] symbol is not a toc symbol")); |
252b5132 RH |
2542 | } |
2543 | } | |
2544 | ||
2545 | toc_reloc = BFD_RELOC_PPC_TOC16; | |
2546 | break; | |
2547 | case must_be_32: | |
99a814a1 AM |
2548 | /* FIXME: these next two specifically specify 32/64 bit |
2549 | toc entries. We don't support them today. Is this | |
2550 | the right way to say that? */ | |
252b5132 RH |
2551 | toc_reloc = BFD_RELOC_UNUSED; |
2552 | as_bad (_("Unimplemented toc32 expression modifier")); | |
2553 | break; | |
2554 | case must_be_64: | |
99a814a1 | 2555 | /* FIXME: see above. */ |
252b5132 RH |
2556 | toc_reloc = BFD_RELOC_UNUSED; |
2557 | as_bad (_("Unimplemented toc64 expression modifier")); | |
2558 | break; | |
2559 | default: | |
bc805888 | 2560 | fprintf (stderr, |
99a814a1 AM |
2561 | _("Unexpected return value [%d] from parse_toc_entry!\n"), |
2562 | toc_kind); | |
bc805888 | 2563 | abort (); |
252b5132 RH |
2564 | break; |
2565 | } | |
2566 | ||
2567 | /* We need to generate a fixup for this expression. */ | |
2568 | if (fc >= MAX_INSN_FIXUPS) | |
2569 | as_fatal (_("too many fixups")); | |
2570 | ||
2571 | fixups[fc].reloc = toc_reloc; | |
2572 | fixups[fc].exp = ex; | |
2573 | fixups[fc].opindex = *opindex_ptr; | |
2574 | ++fc; | |
2575 | ||
99a814a1 AM |
2576 | /* Ok. We've set up the fixup for the instruction. Now make it |
2577 | look like the constant 0 was found here. */ | |
252b5132 RH |
2578 | ex.X_unsigned = 1; |
2579 | ex.X_op = O_constant; | |
2580 | ex.X_add_number = 0; | |
2581 | ex.X_add_symbol = NULL; | |
2582 | ex.X_op_symbol = NULL; | |
2583 | } | |
2584 | ||
2585 | else | |
2586 | #endif /* TE_PE */ | |
2587 | { | |
2ad068be AM |
2588 | if ((reg_names_p && (operand->flags & PPC_OPERAND_CR) != 0) |
2589 | || !register_name (&ex)) | |
252b5132 | 2590 | { |
13abbae3 AM |
2591 | char save_lex = lex_type['%']; |
2592 | ||
252b5132 | 2593 | if ((operand->flags & PPC_OPERAND_CR) != 0) |
13abbae3 AM |
2594 | { |
2595 | cr_operand = TRUE; | |
2596 | lex_type['%'] |= LEX_BEGIN_NAME; | |
2597 | } | |
252b5132 | 2598 | expression (&ex); |
b34976b6 | 2599 | cr_operand = FALSE; |
13abbae3 | 2600 | lex_type['%'] = save_lex; |
252b5132 RH |
2601 | } |
2602 | } | |
2603 | ||
2604 | str = input_line_pointer; | |
2605 | input_line_pointer = hold; | |
2606 | ||
2607 | if (ex.X_op == O_illegal) | |
2608 | as_bad (_("illegal operand")); | |
2609 | else if (ex.X_op == O_absent) | |
2610 | as_bad (_("missing operand")); | |
2611 | else if (ex.X_op == O_register) | |
2612 | { | |
2613 | insn = ppc_insert_operand (insn, operand, ex.X_add_number, | |
783de163 | 2614 | ppc_cpu, (char *) NULL, 0); |
252b5132 RH |
2615 | } |
2616 | else if (ex.X_op == O_constant) | |
2617 | { | |
2618 | #ifdef OBJ_ELF | |
81d4177b | 2619 | /* Allow @HA, @L, @H on constants. */ |
252b5132 RH |
2620 | char *orig_str = str; |
2621 | ||
2622 | if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED) | |
2623 | switch (reloc) | |
2624 | { | |
2625 | default: | |
2626 | str = orig_str; | |
2627 | break; | |
2628 | ||
2629 | case BFD_RELOC_LO16: | |
2630 | /* X_unsigned is the default, so if the user has done | |
0baf16f2 AM |
2631 | something which cleared it, we always produce a |
2632 | signed value. */ | |
2633 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
252b5132 RH |
2634 | ex.X_add_number &= 0xffff; |
2635 | else | |
0baf16f2 | 2636 | ex.X_add_number = SEX16 (ex.X_add_number); |
252b5132 RH |
2637 | break; |
2638 | ||
2639 | case BFD_RELOC_HI16: | |
0baf16f2 AM |
2640 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) |
2641 | ex.X_add_number = PPC_HI (ex.X_add_number); | |
2642 | else | |
2643 | ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number)); | |
252b5132 RH |
2644 | break; |
2645 | ||
2646 | case BFD_RELOC_HI16_S: | |
0baf16f2 AM |
2647 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) |
2648 | ex.X_add_number = PPC_HA (ex.X_add_number); | |
2649 | else | |
2650 | ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number)); | |
2651 | break; | |
2652 | ||
0baf16f2 AM |
2653 | case BFD_RELOC_PPC64_HIGHER: |
2654 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2655 | ex.X_add_number = PPC_HIGHER (ex.X_add_number); | |
2656 | else | |
2657 | ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number)); | |
2658 | break; | |
2659 | ||
2660 | case BFD_RELOC_PPC64_HIGHER_S: | |
2661 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2662 | ex.X_add_number = PPC_HIGHERA (ex.X_add_number); | |
2663 | else | |
2664 | ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number)); | |
252b5132 | 2665 | break; |
0baf16f2 AM |
2666 | |
2667 | case BFD_RELOC_PPC64_HIGHEST: | |
2668 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2669 | ex.X_add_number = PPC_HIGHEST (ex.X_add_number); | |
2670 | else | |
2671 | ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number)); | |
2672 | break; | |
2673 | ||
2674 | case BFD_RELOC_PPC64_HIGHEST_S: | |
2675 | if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED)) | |
2676 | ex.X_add_number = PPC_HIGHESTA (ex.X_add_number); | |
2677 | else | |
2678 | ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number)); | |
2679 | break; | |
252b5132 | 2680 | } |
0baf16f2 | 2681 | #endif /* OBJ_ELF */ |
252b5132 | 2682 | insn = ppc_insert_operand (insn, operand, ex.X_add_number, |
783de163 | 2683 | ppc_cpu, (char *) NULL, 0); |
252b5132 RH |
2684 | } |
2685 | #ifdef OBJ_ELF | |
727fc41e | 2686 | else |
252b5132 | 2687 | { |
727fc41e | 2688 | if (ex.X_op == O_symbol && str[0] == '(') |
cdba85ec | 2689 | { |
727fc41e AM |
2690 | const char *sym_name = S_GET_NAME (ex.X_add_symbol); |
2691 | if (sym_name[0] == '.') | |
2692 | ++sym_name; | |
cdba85ec | 2693 | |
727fc41e | 2694 | if (strcasecmp (sym_name, "__tls_get_addr") == 0) |
252b5132 | 2695 | { |
727fc41e AM |
2696 | expressionS tls_exp; |
2697 | ||
2698 | hold = input_line_pointer; | |
2699 | input_line_pointer = str + 1; | |
2700 | expression (&tls_exp); | |
2701 | if (tls_exp.X_op == O_symbol) | |
2702 | { | |
2703 | reloc = BFD_RELOC_UNUSED; | |
2704 | if (strncasecmp (input_line_pointer, "@tlsgd)", 7) == 0) | |
2705 | { | |
2706 | reloc = BFD_RELOC_PPC_TLSGD; | |
2707 | input_line_pointer += 7; | |
2708 | } | |
2709 | else if (strncasecmp (input_line_pointer, "@tlsld)", 7) == 0) | |
2710 | { | |
2711 | reloc = BFD_RELOC_PPC_TLSLD; | |
2712 | input_line_pointer += 7; | |
2713 | } | |
2714 | if (reloc != BFD_RELOC_UNUSED) | |
2715 | { | |
2716 | SKIP_WHITESPACE (); | |
2717 | str = input_line_pointer; | |
2718 | ||
2719 | if (fc >= MAX_INSN_FIXUPS) | |
2720 | as_fatal (_("too many fixups")); | |
2721 | fixups[fc].exp = tls_exp; | |
2722 | fixups[fc].opindex = *opindex_ptr; | |
2723 | fixups[fc].reloc = reloc; | |
2724 | ++fc; | |
2725 | } | |
2726 | } | |
2727 | input_line_pointer = hold; | |
252b5132 RH |
2728 | } |
2729 | } | |
2730 | ||
727fc41e | 2731 | if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED) |
0baf16f2 | 2732 | { |
727fc41e | 2733 | /* Some TLS tweaks. */ |
0baf16f2 AM |
2734 | switch (reloc) |
2735 | { | |
727fc41e | 2736 | default: |
cdba85ec | 2737 | break; |
727fc41e AM |
2738 | |
2739 | case BFD_RELOC_PPC_TLS: | |
2d0f3896 AM |
2740 | if (!_bfd_elf_ppc_at_tls_transform (opcode->opcode, 0)) |
2741 | as_bad (_("@tls may not be used with \"%s\" operands"), | |
2742 | opcode->name); | |
2743 | else if (operand->shift != 11) | |
2744 | as_bad (_("@tls may only be used in last operand")); | |
2745 | else | |
2746 | insn = ppc_insert_operand (insn, operand, | |
2747 | ppc_obj64 ? 13 : 2, | |
2748 | ppc_cpu, (char *) NULL, 0); | |
cdba85ec | 2749 | break; |
727fc41e AM |
2750 | |
2751 | /* We'll only use the 32 (or 64) bit form of these relocations | |
2752 | in constants. Instructions get the 16 bit form. */ | |
2753 | case BFD_RELOC_PPC_DTPREL: | |
2754 | reloc = BFD_RELOC_PPC_DTPREL16; | |
cdba85ec | 2755 | break; |
727fc41e AM |
2756 | case BFD_RELOC_PPC_TPREL: |
2757 | reloc = BFD_RELOC_PPC_TPREL16; | |
0baf16f2 AM |
2758 | break; |
2759 | } | |
727fc41e AM |
2760 | |
2761 | /* For the absolute forms of branches, convert the PC | |
2762 | relative form back into the absolute. */ | |
2763 | if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0) | |
2764 | { | |
2765 | switch (reloc) | |
2766 | { | |
2767 | case BFD_RELOC_PPC_B26: | |
2768 | reloc = BFD_RELOC_PPC_BA26; | |
2769 | break; | |
2770 | case BFD_RELOC_PPC_B16: | |
2771 | reloc = BFD_RELOC_PPC_BA16; | |
2772 | break; | |
2773 | case BFD_RELOC_PPC_B16_BRTAKEN: | |
2774 | reloc = BFD_RELOC_PPC_BA16_BRTAKEN; | |
2775 | break; | |
2776 | case BFD_RELOC_PPC_B16_BRNTAKEN: | |
2777 | reloc = BFD_RELOC_PPC_BA16_BRNTAKEN; | |
2778 | break; | |
2779 | default: | |
2780 | break; | |
2781 | } | |
2782 | } | |
2783 | ||
01efc3af AM |
2784 | switch (reloc) |
2785 | { | |
2786 | case BFD_RELOC_PPC_TOC16: | |
2787 | toc_reloc_types |= has_small_toc_reloc; | |
2788 | break; | |
2789 | case BFD_RELOC_PPC64_TOC16_LO: | |
2790 | case BFD_RELOC_PPC64_TOC16_HI: | |
2791 | case BFD_RELOC_PPC64_TOC16_HA: | |
2792 | toc_reloc_types |= has_large_toc_reloc; | |
2793 | break; | |
2794 | default: | |
2795 | break; | |
2796 | } | |
2797 | ||
727fc41e AM |
2798 | if (ppc_obj64 |
2799 | && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0) | |
2800 | { | |
2801 | switch (reloc) | |
2802 | { | |
2803 | case BFD_RELOC_16: | |
2804 | reloc = BFD_RELOC_PPC64_ADDR16_DS; | |
2805 | break; | |
2806 | case BFD_RELOC_LO16: | |
2807 | reloc = BFD_RELOC_PPC64_ADDR16_LO_DS; | |
2808 | break; | |
2809 | case BFD_RELOC_16_GOTOFF: | |
2810 | reloc = BFD_RELOC_PPC64_GOT16_DS; | |
2811 | break; | |
2812 | case BFD_RELOC_LO16_GOTOFF: | |
2813 | reloc = BFD_RELOC_PPC64_GOT16_LO_DS; | |
2814 | break; | |
2815 | case BFD_RELOC_LO16_PLTOFF: | |
2816 | reloc = BFD_RELOC_PPC64_PLT16_LO_DS; | |
2817 | break; | |
2818 | case BFD_RELOC_16_BASEREL: | |
2819 | reloc = BFD_RELOC_PPC64_SECTOFF_DS; | |
2820 | break; | |
2821 | case BFD_RELOC_LO16_BASEREL: | |
2822 | reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS; | |
2823 | break; | |
2824 | case BFD_RELOC_PPC_TOC16: | |
2825 | reloc = BFD_RELOC_PPC64_TOC16_DS; | |
2826 | break; | |
2827 | case BFD_RELOC_PPC64_TOC16_LO: | |
2828 | reloc = BFD_RELOC_PPC64_TOC16_LO_DS; | |
2829 | break; | |
2830 | case BFD_RELOC_PPC64_PLTGOT16: | |
2831 | reloc = BFD_RELOC_PPC64_PLTGOT16_DS; | |
2832 | break; | |
2833 | case BFD_RELOC_PPC64_PLTGOT16_LO: | |
2834 | reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS; | |
2835 | break; | |
2836 | case BFD_RELOC_PPC_DTPREL16: | |
2837 | reloc = BFD_RELOC_PPC64_DTPREL16_DS; | |
2838 | break; | |
2839 | case BFD_RELOC_PPC_DTPREL16_LO: | |
2840 | reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS; | |
2841 | break; | |
2842 | case BFD_RELOC_PPC_TPREL16: | |
2843 | reloc = BFD_RELOC_PPC64_TPREL16_DS; | |
2844 | break; | |
2845 | case BFD_RELOC_PPC_TPREL16_LO: | |
2846 | reloc = BFD_RELOC_PPC64_TPREL16_LO_DS; | |
2847 | break; | |
2848 | case BFD_RELOC_PPC_GOT_DTPREL16: | |
2849 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: | |
2850 | case BFD_RELOC_PPC_GOT_TPREL16: | |
2851 | case BFD_RELOC_PPC_GOT_TPREL16_LO: | |
2852 | break; | |
2853 | default: | |
2854 | as_bad (_("unsupported relocation for DS offset field")); | |
2855 | break; | |
2856 | } | |
2857 | } | |
0baf16f2 AM |
2858 | } |
2859 | ||
252b5132 RH |
2860 | /* We need to generate a fixup for this expression. */ |
2861 | if (fc >= MAX_INSN_FIXUPS) | |
2862 | as_fatal (_("too many fixups")); | |
2863 | fixups[fc].exp = ex; | |
727fc41e | 2864 | fixups[fc].opindex = *opindex_ptr; |
252b5132 RH |
2865 | fixups[fc].reloc = reloc; |
2866 | ++fc; | |
2867 | } | |
727fc41e | 2868 | #else /* OBJ_ELF */ |
252b5132 RH |
2869 | else |
2870 | { | |
2871 | /* We need to generate a fixup for this expression. */ | |
2872 | if (fc >= MAX_INSN_FIXUPS) | |
2873 | as_fatal (_("too many fixups")); | |
2874 | fixups[fc].exp = ex; | |
2875 | fixups[fc].opindex = *opindex_ptr; | |
2876 | fixups[fc].reloc = BFD_RELOC_UNUSED; | |
2877 | ++fc; | |
2878 | } | |
727fc41e | 2879 | #endif /* OBJ_ELF */ |
252b5132 RH |
2880 | |
2881 | if (need_paren) | |
2882 | { | |
2883 | endc = ')'; | |
2884 | need_paren = 0; | |
c3d65c1c BE |
2885 | /* If expecting more operands, then we want to see "),". */ |
2886 | if (*str == endc && opindex_ptr[1] != 0) | |
2887 | { | |
2888 | do | |
2889 | ++str; | |
2890 | while (ISSPACE (*str)); | |
2891 | endc = ','; | |
2892 | } | |
252b5132 RH |
2893 | } |
2894 | else if ((operand->flags & PPC_OPERAND_PARENS) != 0) | |
2895 | { | |
2896 | endc = '('; | |
2897 | need_paren = 1; | |
2898 | } | |
2899 | else | |
2900 | endc = ','; | |
2901 | ||
2902 | /* The call to expression should have advanced str past any | |
2903 | whitespace. */ | |
2904 | if (*str != endc | |
2905 | && (endc != ',' || *str != '\0')) | |
2906 | { | |
5a938047 AM |
2907 | if (*str == '\0') |
2908 | as_bad (_("syntax error; end of line, expected `%c'"), endc); | |
2909 | else | |
2910 | as_bad (_("syntax error; found `%c', expected `%c'"), *str, endc); | |
252b5132 RH |
2911 | break; |
2912 | } | |
2913 | ||
2914 | if (*str != '\0') | |
2915 | ++str; | |
2916 | } | |
2917 | ||
3882b010 | 2918 | while (ISSPACE (*str)) |
252b5132 RH |
2919 | ++str; |
2920 | ||
2921 | if (*str != '\0') | |
2922 | as_bad (_("junk at end of line: `%s'"), str); | |
2923 | ||
dc1d03fc | 2924 | #ifdef OBJ_ELF |
6a0c61b7 | 2925 | /* Do we need/want a APUinfo section? */ |
e01d869a | 2926 | if ((ppc_cpu & (PPC_OPCODE_E500 | PPC_OPCODE_E500MC)) != 0) |
6a0c61b7 EZ |
2927 | { |
2928 | /* These are all version "1". */ | |
2929 | if (opcode->flags & PPC_OPCODE_SPE) | |
b34976b6 | 2930 | ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1); |
6a0c61b7 | 2931 | if (opcode->flags & PPC_OPCODE_ISEL) |
b34976b6 | 2932 | ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1); |
6a0c61b7 | 2933 | if (opcode->flags & PPC_OPCODE_EFS) |
b34976b6 | 2934 | ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1); |
6a0c61b7 | 2935 | if (opcode->flags & PPC_OPCODE_BRLOCK) |
b34976b6 | 2936 | ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1); |
6a0c61b7 | 2937 | if (opcode->flags & PPC_OPCODE_PMR) |
b34976b6 | 2938 | ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1); |
6a0c61b7 | 2939 | if (opcode->flags & PPC_OPCODE_CACHELCK) |
b34976b6 | 2940 | ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1); |
6a0c61b7 | 2941 | if (opcode->flags & PPC_OPCODE_RFMCI) |
b34976b6 | 2942 | ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1); |
6a0c61b7 | 2943 | } |
dc1d03fc | 2944 | #endif |
6a0c61b7 | 2945 | |
252b5132 RH |
2946 | /* Write out the instruction. */ |
2947 | f = frag_more (4); | |
09b935ac AM |
2948 | addr_mod = frag_now_fix () & 3; |
2949 | if (frag_now->has_code && frag_now->insn_addr != addr_mod) | |
2950 | as_bad (_("instruction address is not a multiple of 4")); | |
2951 | frag_now->insn_addr = addr_mod; | |
2952 | frag_now->has_code = 1; | |
252b5132 RH |
2953 | md_number_to_chars (f, insn, 4); |
2954 | ||
5d6f4f16 GK |
2955 | #ifdef OBJ_ELF |
2956 | dwarf2_emit_insn (4); | |
2957 | #endif | |
2958 | ||
252b5132 RH |
2959 | /* Create any fixups. At this point we do not use a |
2960 | bfd_reloc_code_real_type, but instead just use the | |
2961 | BFD_RELOC_UNUSED plus the operand index. This lets us easily | |
2962 | handle fixups for any operand type, although that is admittedly | |
2963 | not a very exciting feature. We pick a BFD reloc type in | |
55cf6793 | 2964 | md_apply_fix. */ |
252b5132 RH |
2965 | for (i = 0; i < fc; i++) |
2966 | { | |
252b5132 RH |
2967 | if (fixups[i].reloc != BFD_RELOC_UNUSED) |
2968 | { | |
99a814a1 | 2969 | reloc_howto_type *reloc_howto; |
252b5132 RH |
2970 | int size; |
2971 | int offset; | |
2972 | fixS *fixP; | |
2973 | ||
99a814a1 | 2974 | reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc); |
252b5132 RH |
2975 | if (!reloc_howto) |
2976 | abort (); | |
2977 | ||
2978 | size = bfd_get_reloc_size (reloc_howto); | |
2979 | offset = target_big_endian ? (4 - size) : 0; | |
2980 | ||
2981 | if (size < 1 || size > 4) | |
bc805888 | 2982 | abort (); |
252b5132 | 2983 | |
99a814a1 AM |
2984 | fixP = fix_new_exp (frag_now, |
2985 | f - frag_now->fr_literal + offset, | |
2986 | size, | |
2987 | &fixups[i].exp, | |
2988 | reloc_howto->pc_relative, | |
252b5132 RH |
2989 | fixups[i].reloc); |
2990 | ||
2991 | /* Turn off complaints that the addend is too large for things like | |
2992 | foo+100000@ha. */ | |
2993 | switch (fixups[i].reloc) | |
2994 | { | |
2995 | case BFD_RELOC_16_GOTOFF: | |
2996 | case BFD_RELOC_PPC_TOC16: | |
2997 | case BFD_RELOC_LO16: | |
2998 | case BFD_RELOC_HI16: | |
2999 | case BFD_RELOC_HI16_S: | |
0baf16f2 | 3000 | #ifdef OBJ_ELF |
0baf16f2 AM |
3001 | case BFD_RELOC_PPC64_HIGHER: |
3002 | case BFD_RELOC_PPC64_HIGHER_S: | |
3003 | case BFD_RELOC_PPC64_HIGHEST: | |
3004 | case BFD_RELOC_PPC64_HIGHEST_S: | |
0baf16f2 | 3005 | #endif |
252b5132 RH |
3006 | fixP->fx_no_overflow = 1; |
3007 | break; | |
3008 | default: | |
3009 | break; | |
3010 | } | |
3011 | } | |
3012 | else | |
727fc41e AM |
3013 | { |
3014 | const struct powerpc_operand *operand; | |
3015 | ||
3016 | operand = &powerpc_operands[fixups[i].opindex]; | |
3017 | fix_new_exp (frag_now, | |
3018 | f - frag_now->fr_literal, | |
3019 | 4, | |
3020 | &fixups[i].exp, | |
3021 | (operand->flags & PPC_OPERAND_RELATIVE) != 0, | |
3022 | ((bfd_reloc_code_real_type) | |
3023 | (fixups[i].opindex + (int) BFD_RELOC_UNUSED))); | |
3024 | } | |
252b5132 RH |
3025 | } |
3026 | } | |
3027 | ||
3028 | /* Handle a macro. Gather all the operands, transform them as | |
3029 | described by the macro, and call md_assemble recursively. All the | |
3030 | operands are separated by commas; we don't accept parentheses | |
3031 | around operands here. */ | |
3032 | ||
3033 | static void | |
98027b10 | 3034 | ppc_macro (char *str, const struct powerpc_macro *macro) |
252b5132 RH |
3035 | { |
3036 | char *operands[10]; | |
3037 | unsigned int count; | |
3038 | char *s; | |
3039 | unsigned int len; | |
3040 | const char *format; | |
db557034 | 3041 | unsigned int arg; |
252b5132 RH |
3042 | char *send; |
3043 | char *complete; | |
3044 | ||
3045 | /* Gather the users operands into the operands array. */ | |
3046 | count = 0; | |
3047 | s = str; | |
3048 | while (1) | |
3049 | { | |
3050 | if (count >= sizeof operands / sizeof operands[0]) | |
3051 | break; | |
3052 | operands[count++] = s; | |
3053 | s = strchr (s, ','); | |
3054 | if (s == (char *) NULL) | |
3055 | break; | |
3056 | *s++ = '\0'; | |
81d4177b | 3057 | } |
252b5132 RH |
3058 | |
3059 | if (count != macro->operands) | |
3060 | { | |
3061 | as_bad (_("wrong number of operands")); | |
3062 | return; | |
3063 | } | |
3064 | ||
3065 | /* Work out how large the string must be (the size is unbounded | |
3066 | because it includes user input). */ | |
3067 | len = 0; | |
3068 | format = macro->format; | |
3069 | while (*format != '\0') | |
3070 | { | |
3071 | if (*format != '%') | |
3072 | { | |
3073 | ++len; | |
3074 | ++format; | |
3075 | } | |
3076 | else | |
3077 | { | |
3078 | arg = strtol (format + 1, &send, 10); | |
db557034 | 3079 | know (send != format && arg < count); |
252b5132 RH |
3080 | len += strlen (operands[arg]); |
3081 | format = send; | |
3082 | } | |
3083 | } | |
3084 | ||
3085 | /* Put the string together. */ | |
3086 | complete = s = (char *) alloca (len + 1); | |
3087 | format = macro->format; | |
3088 | while (*format != '\0') | |
3089 | { | |
3090 | if (*format != '%') | |
3091 | *s++ = *format++; | |
3092 | else | |
3093 | { | |
3094 | arg = strtol (format + 1, &send, 10); | |
3095 | strcpy (s, operands[arg]); | |
3096 | s += strlen (s); | |
3097 | format = send; | |
3098 | } | |
3099 | } | |
3100 | *s = '\0'; | |
3101 | ||
3102 | /* Assemble the constructed instruction. */ | |
3103 | md_assemble (complete); | |
81d4177b | 3104 | } |
252b5132 RH |
3105 | \f |
3106 | #ifdef OBJ_ELF | |
18ae9cc1 | 3107 | /* For ELF, add support for SHT_ORDERED. */ |
252b5132 RH |
3108 | |
3109 | int | |
98027b10 | 3110 | ppc_section_type (char *str, size_t len) |
252b5132 | 3111 | { |
9de8d8f1 RH |
3112 | if (len == 7 && strncmp (str, "ordered", 7) == 0) |
3113 | return SHT_ORDERED; | |
252b5132 | 3114 | |
9de8d8f1 | 3115 | return -1; |
252b5132 RH |
3116 | } |
3117 | ||
3118 | int | |
1239de13 | 3119 | ppc_section_flags (flagword flags, bfd_vma attr ATTRIBUTE_UNUSED, int type) |
252b5132 RH |
3120 | { |
3121 | if (type == SHT_ORDERED) | |
3122 | flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES; | |
3123 | ||
252b5132 RH |
3124 | return flags; |
3125 | } | |
3126 | #endif /* OBJ_ELF */ | |
3127 | ||
3128 | \f | |
3129 | /* Pseudo-op handling. */ | |
3130 | ||
3131 | /* The .byte pseudo-op. This is similar to the normal .byte | |
3132 | pseudo-op, but it can also take a single ASCII string. */ | |
3133 | ||
3134 | static void | |
98027b10 | 3135 | ppc_byte (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
3136 | { |
3137 | if (*input_line_pointer != '\"') | |
3138 | { | |
3139 | cons (1); | |
3140 | return; | |
3141 | } | |
3142 | ||
3143 | /* Gather characters. A real double quote is doubled. Unusual | |
3144 | characters are not permitted. */ | |
3145 | ++input_line_pointer; | |
3146 | while (1) | |
3147 | { | |
3148 | char c; | |
3149 | ||
3150 | c = *input_line_pointer++; | |
3151 | ||
3152 | if (c == '\"') | |
3153 | { | |
3154 | if (*input_line_pointer != '\"') | |
3155 | break; | |
3156 | ++input_line_pointer; | |
3157 | } | |
3158 | ||
3159 | FRAG_APPEND_1_CHAR (c); | |
3160 | } | |
3161 | ||
3162 | demand_empty_rest_of_line (); | |
3163 | } | |
3164 | \f | |
3165 | #ifdef OBJ_XCOFF | |
3166 | ||
3167 | /* XCOFF specific pseudo-op handling. */ | |
3168 | ||
3169 | /* This is set if we are creating a .stabx symbol, since we don't want | |
3170 | to handle symbol suffixes for such symbols. */ | |
b34976b6 | 3171 | static bfd_boolean ppc_stab_symbol; |
252b5132 RH |
3172 | |
3173 | /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common | |
3174 | symbols in the .bss segment as though they were local common | |
67c1ffbe | 3175 | symbols, and uses a different smclas. The native Aix 4.3.3 assembler |
1ad63b2f | 3176 | aligns .comm and .lcomm to 4 bytes. */ |
252b5132 RH |
3177 | |
3178 | static void | |
98027b10 | 3179 | ppc_comm (int lcomm) |
252b5132 RH |
3180 | { |
3181 | asection *current_seg = now_seg; | |
3182 | subsegT current_subseg = now_subseg; | |
3183 | char *name; | |
3184 | char endc; | |
3185 | char *end_name; | |
3186 | offsetT size; | |
3187 | offsetT align; | |
3188 | symbolS *lcomm_sym = NULL; | |
3189 | symbolS *sym; | |
3190 | char *pfrag; | |
3191 | ||
3192 | name = input_line_pointer; | |
3193 | endc = get_symbol_end (); | |
3194 | end_name = input_line_pointer; | |
3195 | *end_name = endc; | |
3196 | ||
3197 | if (*input_line_pointer != ',') | |
3198 | { | |
3199 | as_bad (_("missing size")); | |
3200 | ignore_rest_of_line (); | |
3201 | return; | |
3202 | } | |
3203 | ++input_line_pointer; | |
3204 | ||
3205 | size = get_absolute_expression (); | |
3206 | if (size < 0) | |
3207 | { | |
3208 | as_bad (_("negative size")); | |
3209 | ignore_rest_of_line (); | |
3210 | return; | |
3211 | } | |
3212 | ||
3213 | if (! lcomm) | |
3214 | { | |
3215 | /* The third argument to .comm is the alignment. */ | |
3216 | if (*input_line_pointer != ',') | |
1ad63b2f | 3217 | align = 2; |
252b5132 RH |
3218 | else |
3219 | { | |
3220 | ++input_line_pointer; | |
3221 | align = get_absolute_expression (); | |
3222 | if (align <= 0) | |
3223 | { | |
3224 | as_warn (_("ignoring bad alignment")); | |
1ad63b2f | 3225 | align = 2; |
252b5132 RH |
3226 | } |
3227 | } | |
3228 | } | |
3229 | else | |
3230 | { | |
3231 | char *lcomm_name; | |
3232 | char lcomm_endc; | |
3233 | ||
1ad63b2f | 3234 | if (size <= 4) |
252b5132 RH |
3235 | align = 2; |
3236 | else | |
3237 | align = 3; | |
3238 | ||
3239 | /* The third argument to .lcomm appears to be the real local | |
3240 | common symbol to create. References to the symbol named in | |
3241 | the first argument are turned into references to the third | |
3242 | argument. */ | |
3243 | if (*input_line_pointer != ',') | |
3244 | { | |
3245 | as_bad (_("missing real symbol name")); | |
3246 | ignore_rest_of_line (); | |
3247 | return; | |
3248 | } | |
3249 | ++input_line_pointer; | |
3250 | ||
3251 | lcomm_name = input_line_pointer; | |
3252 | lcomm_endc = get_symbol_end (); | |
81d4177b | 3253 | |
252b5132 RH |
3254 | lcomm_sym = symbol_find_or_make (lcomm_name); |
3255 | ||
3256 | *input_line_pointer = lcomm_endc; | |
3257 | } | |
3258 | ||
3259 | *end_name = '\0'; | |
3260 | sym = symbol_find_or_make (name); | |
3261 | *end_name = endc; | |
3262 | ||
3263 | if (S_IS_DEFINED (sym) | |
3264 | || S_GET_VALUE (sym) != 0) | |
3265 | { | |
3266 | as_bad (_("attempt to redefine symbol")); | |
3267 | ignore_rest_of_line (); | |
3268 | return; | |
3269 | } | |
81d4177b | 3270 | |
252b5132 | 3271 | record_alignment (bss_section, align); |
81d4177b | 3272 | |
252b5132 RH |
3273 | if (! lcomm |
3274 | || ! S_IS_DEFINED (lcomm_sym)) | |
3275 | { | |
3276 | symbolS *def_sym; | |
3277 | offsetT def_size; | |
3278 | ||
3279 | if (! lcomm) | |
3280 | { | |
3281 | def_sym = sym; | |
3282 | def_size = size; | |
3283 | S_SET_EXTERNAL (sym); | |
3284 | } | |
3285 | else | |
3286 | { | |
809ffe0d | 3287 | symbol_get_tc (lcomm_sym)->output = 1; |
252b5132 RH |
3288 | def_sym = lcomm_sym; |
3289 | def_size = 0; | |
3290 | } | |
3291 | ||
3292 | subseg_set (bss_section, 1); | |
3293 | frag_align (align, 0, 0); | |
81d4177b | 3294 | |
809ffe0d | 3295 | symbol_set_frag (def_sym, frag_now); |
252b5132 RH |
3296 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym, |
3297 | def_size, (char *) NULL); | |
3298 | *pfrag = 0; | |
3299 | S_SET_SEGMENT (def_sym, bss_section); | |
809ffe0d | 3300 | symbol_get_tc (def_sym)->align = align; |
252b5132 RH |
3301 | } |
3302 | else if (lcomm) | |
3303 | { | |
3304 | /* Align the size of lcomm_sym. */ | |
809ffe0d ILT |
3305 | symbol_get_frag (lcomm_sym)->fr_offset = |
3306 | ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1) | |
252b5132 | 3307 | &~ ((1 << align) - 1)); |
809ffe0d ILT |
3308 | if (align > symbol_get_tc (lcomm_sym)->align) |
3309 | symbol_get_tc (lcomm_sym)->align = align; | |
252b5132 RH |
3310 | } |
3311 | ||
3312 | if (lcomm) | |
3313 | { | |
3314 | /* Make sym an offset from lcomm_sym. */ | |
3315 | S_SET_SEGMENT (sym, bss_section); | |
809ffe0d ILT |
3316 | symbol_set_frag (sym, symbol_get_frag (lcomm_sym)); |
3317 | S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset); | |
3318 | symbol_get_frag (lcomm_sym)->fr_offset += size; | |
252b5132 RH |
3319 | } |
3320 | ||
3321 | subseg_set (current_seg, current_subseg); | |
3322 | ||
3323 | demand_empty_rest_of_line (); | |
3324 | } | |
3325 | ||
3326 | /* The .csect pseudo-op. This switches us into a different | |
3327 | subsegment. The first argument is a symbol whose value is the | |
3328 | start of the .csect. In COFF, csect symbols get special aux | |
3329 | entries defined by the x_csect field of union internal_auxent. The | |
3330 | optional second argument is the alignment (the default is 2). */ | |
3331 | ||
3332 | static void | |
98027b10 | 3333 | ppc_csect (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
3334 | { |
3335 | char *name; | |
3336 | char endc; | |
3337 | symbolS *sym; | |
931e13a6 | 3338 | offsetT align; |
252b5132 RH |
3339 | |
3340 | name = input_line_pointer; | |
3341 | endc = get_symbol_end (); | |
81d4177b | 3342 | |
252b5132 RH |
3343 | sym = symbol_find_or_make (name); |
3344 | ||
3345 | *input_line_pointer = endc; | |
3346 | ||
3347 | if (S_GET_NAME (sym)[0] == '\0') | |
3348 | { | |
3349 | /* An unnamed csect is assumed to be [PR]. */ | |
96d56e9f | 3350 | symbol_get_tc (sym)->symbol_class = XMC_PR; |
252b5132 RH |
3351 | } |
3352 | ||
931e13a6 | 3353 | align = 2; |
252b5132 RH |
3354 | if (*input_line_pointer == ',') |
3355 | { | |
3356 | ++input_line_pointer; | |
931e13a6 | 3357 | align = get_absolute_expression (); |
252b5132 RH |
3358 | } |
3359 | ||
931e13a6 AM |
3360 | ppc_change_csect (sym, align); |
3361 | ||
252b5132 RH |
3362 | demand_empty_rest_of_line (); |
3363 | } | |
3364 | ||
3365 | /* Change to a different csect. */ | |
3366 | ||
3367 | static void | |
98027b10 | 3368 | ppc_change_csect (symbolS *sym, offsetT align) |
252b5132 RH |
3369 | { |
3370 | if (S_IS_DEFINED (sym)) | |
809ffe0d | 3371 | subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg); |
252b5132 RH |
3372 | else |
3373 | { | |
3374 | symbolS **list_ptr; | |
3375 | int after_toc; | |
3376 | int hold_chunksize; | |
3377 | symbolS *list; | |
931e13a6 AM |
3378 | int is_code; |
3379 | segT sec; | |
252b5132 RH |
3380 | |
3381 | /* This is a new csect. We need to look at the symbol class to | |
3382 | figure out whether it should go in the text section or the | |
3383 | data section. */ | |
3384 | after_toc = 0; | |
931e13a6 | 3385 | is_code = 0; |
96d56e9f | 3386 | switch (symbol_get_tc (sym)->symbol_class) |
252b5132 RH |
3387 | { |
3388 | case XMC_PR: | |
3389 | case XMC_RO: | |
3390 | case XMC_DB: | |
3391 | case XMC_GL: | |
3392 | case XMC_XO: | |
3393 | case XMC_SV: | |
3394 | case XMC_TI: | |
3395 | case XMC_TB: | |
3396 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3397 | symbol_get_tc (sym)->subseg = ppc_text_subsegment; |
252b5132 RH |
3398 | ++ppc_text_subsegment; |
3399 | list_ptr = &ppc_text_csects; | |
931e13a6 | 3400 | is_code = 1; |
252b5132 RH |
3401 | break; |
3402 | case XMC_RW: | |
3403 | case XMC_TC0: | |
3404 | case XMC_TC: | |
3405 | case XMC_DS: | |
3406 | case XMC_UA: | |
3407 | case XMC_BS: | |
3408 | case XMC_UC: | |
3409 | if (ppc_toc_csect != NULL | |
809ffe0d ILT |
3410 | && (symbol_get_tc (ppc_toc_csect)->subseg + 1 |
3411 | == ppc_data_subsegment)) | |
252b5132 RH |
3412 | after_toc = 1; |
3413 | S_SET_SEGMENT (sym, data_section); | |
809ffe0d | 3414 | symbol_get_tc (sym)->subseg = ppc_data_subsegment; |
252b5132 RH |
3415 | ++ppc_data_subsegment; |
3416 | list_ptr = &ppc_data_csects; | |
3417 | break; | |
3418 | default: | |
3419 | abort (); | |
3420 | } | |
3421 | ||
3422 | /* We set the obstack chunk size to a small value before | |
99a814a1 AM |
3423 | changing subsegments, so that we don't use a lot of memory |
3424 | space for what may be a small section. */ | |
252b5132 RH |
3425 | hold_chunksize = chunksize; |
3426 | chunksize = 64; | |
3427 | ||
931e13a6 AM |
3428 | sec = subseg_new (segment_name (S_GET_SEGMENT (sym)), |
3429 | symbol_get_tc (sym)->subseg); | |
252b5132 RH |
3430 | |
3431 | chunksize = hold_chunksize; | |
3432 | ||
3433 | if (after_toc) | |
3434 | ppc_after_toc_frag = frag_now; | |
3435 | ||
931e13a6 AM |
3436 | record_alignment (sec, align); |
3437 | if (is_code) | |
3438 | frag_align_code (align, 0); | |
3439 | else | |
3440 | frag_align (align, 0, 0); | |
3441 | ||
809ffe0d | 3442 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3443 | S_SET_VALUE (sym, (valueT) frag_now_fix ()); |
3444 | ||
931e13a6 | 3445 | symbol_get_tc (sym)->align = align; |
809ffe0d ILT |
3446 | symbol_get_tc (sym)->output = 1; |
3447 | symbol_get_tc (sym)->within = sym; | |
81d4177b | 3448 | |
252b5132 | 3449 | for (list = *list_ptr; |
809ffe0d ILT |
3450 | symbol_get_tc (list)->next != (symbolS *) NULL; |
3451 | list = symbol_get_tc (list)->next) | |
252b5132 | 3452 | ; |
809ffe0d | 3453 | symbol_get_tc (list)->next = sym; |
81d4177b | 3454 | |
252b5132 | 3455 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); |
809ffe0d ILT |
3456 | symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP, |
3457 | &symbol_lastP); | |
252b5132 RH |
3458 | } |
3459 | ||
3460 | ppc_current_csect = sym; | |
3461 | } | |
3462 | ||
3463 | /* This function handles the .text and .data pseudo-ops. These | |
3464 | pseudo-ops aren't really used by XCOFF; we implement them for the | |
3465 | convenience of people who aren't used to XCOFF. */ | |
3466 | ||
3467 | static void | |
98027b10 | 3468 | ppc_section (int type) |
252b5132 RH |
3469 | { |
3470 | const char *name; | |
3471 | symbolS *sym; | |
3472 | ||
3473 | if (type == 't') | |
3474 | name = ".text[PR]"; | |
3475 | else if (type == 'd') | |
3476 | name = ".data[RW]"; | |
3477 | else | |
3478 | abort (); | |
3479 | ||
3480 | sym = symbol_find_or_make (name); | |
3481 | ||
931e13a6 | 3482 | ppc_change_csect (sym, 2); |
252b5132 RH |
3483 | |
3484 | demand_empty_rest_of_line (); | |
3485 | } | |
3486 | ||
3487 | /* This function handles the .section pseudo-op. This is mostly to | |
3488 | give an error, since XCOFF only supports .text, .data and .bss, but | |
3489 | we do permit the user to name the text or data section. */ | |
3490 | ||
3491 | static void | |
98027b10 | 3492 | ppc_named_section (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
3493 | { |
3494 | char *user_name; | |
3495 | const char *real_name; | |
3496 | char c; | |
3497 | symbolS *sym; | |
3498 | ||
3499 | user_name = input_line_pointer; | |
3500 | c = get_symbol_end (); | |
3501 | ||
3502 | if (strcmp (user_name, ".text") == 0) | |
3503 | real_name = ".text[PR]"; | |
3504 | else if (strcmp (user_name, ".data") == 0) | |
3505 | real_name = ".data[RW]"; | |
3506 | else | |
3507 | { | |
3508 | as_bad (_("The XCOFF file format does not support arbitrary sections")); | |
3509 | *input_line_pointer = c; | |
3510 | ignore_rest_of_line (); | |
3511 | return; | |
3512 | } | |
3513 | ||
3514 | *input_line_pointer = c; | |
3515 | ||
3516 | sym = symbol_find_or_make (real_name); | |
3517 | ||
931e13a6 | 3518 | ppc_change_csect (sym, 2); |
252b5132 RH |
3519 | |
3520 | demand_empty_rest_of_line (); | |
3521 | } | |
3522 | ||
3523 | /* The .extern pseudo-op. We create an undefined symbol. */ | |
3524 | ||
3525 | static void | |
98027b10 | 3526 | ppc_extern (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
3527 | { |
3528 | char *name; | |
3529 | char endc; | |
3530 | ||
3531 | name = input_line_pointer; | |
3532 | endc = get_symbol_end (); | |
3533 | ||
3534 | (void) symbol_find_or_make (name); | |
3535 | ||
3536 | *input_line_pointer = endc; | |
3537 | ||
3538 | demand_empty_rest_of_line (); | |
3539 | } | |
3540 | ||
3541 | /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */ | |
3542 | ||
3543 | static void | |
98027b10 | 3544 | ppc_lglobl (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
3545 | { |
3546 | char *name; | |
3547 | char endc; | |
3548 | symbolS *sym; | |
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 | ||
809ffe0d | 3557 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3558 | |
3559 | demand_empty_rest_of_line (); | |
3560 | } | |
3561 | ||
c865e45b RS |
3562 | /* The .ref pseudo-op. It takes a list of symbol names and inserts R_REF |
3563 | relocations at the beginning of the current csect. | |
3564 | ||
3565 | (In principle, there's no reason why the relocations _have_ to be at | |
3566 | the beginning. Anywhere in the csect would do. However, inserting | |
3567 | at the beginning is what the native assmebler does, and it helps to | |
3568 | deal with cases where the .ref statements follow the section contents.) | |
3569 | ||
3570 | ??? .refs don't work for empty .csects. However, the native assembler | |
3571 | doesn't report an error in this case, and neither yet do we. */ | |
3572 | ||
3573 | static void | |
3574 | ppc_ref (int ignore ATTRIBUTE_UNUSED) | |
3575 | { | |
3576 | char *name; | |
3577 | char c; | |
3578 | ||
3579 | if (ppc_current_csect == NULL) | |
3580 | { | |
3581 | as_bad (_(".ref outside .csect")); | |
3582 | ignore_rest_of_line (); | |
3583 | return; | |
3584 | } | |
3585 | ||
3586 | do | |
3587 | { | |
3588 | name = input_line_pointer; | |
3589 | c = get_symbol_end (); | |
3590 | ||
3591 | fix_at_start (symbol_get_frag (ppc_current_csect), 0, | |
3592 | symbol_find_or_make (name), 0, FALSE, BFD_RELOC_NONE); | |
3593 | ||
3594 | *input_line_pointer = c; | |
3595 | SKIP_WHITESPACE (); | |
3596 | c = *input_line_pointer; | |
3597 | if (c == ',') | |
3598 | { | |
3599 | input_line_pointer++; | |
3600 | SKIP_WHITESPACE (); | |
3601 | if (is_end_of_line[(unsigned char) *input_line_pointer]) | |
3602 | { | |
3603 | as_bad (_("missing symbol name")); | |
3604 | ignore_rest_of_line (); | |
3605 | return; | |
3606 | } | |
3607 | } | |
3608 | } | |
3609 | while (c == ','); | |
3610 | ||
3611 | demand_empty_rest_of_line (); | |
3612 | } | |
3613 | ||
252b5132 RH |
3614 | /* The .rename pseudo-op. The RS/6000 assembler can rename symbols, |
3615 | although I don't know why it bothers. */ | |
3616 | ||
3617 | static void | |
98027b10 | 3618 | ppc_rename (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
3619 | { |
3620 | char *name; | |
3621 | char endc; | |
3622 | symbolS *sym; | |
3623 | int len; | |
3624 | ||
3625 | name = input_line_pointer; | |
3626 | endc = get_symbol_end (); | |
3627 | ||
3628 | sym = symbol_find_or_make (name); | |
3629 | ||
3630 | *input_line_pointer = endc; | |
3631 | ||
3632 | if (*input_line_pointer != ',') | |
3633 | { | |
3634 | as_bad (_("missing rename string")); | |
3635 | ignore_rest_of_line (); | |
3636 | return; | |
3637 | } | |
3638 | ++input_line_pointer; | |
3639 | ||
809ffe0d | 3640 | symbol_get_tc (sym)->real_name = demand_copy_C_string (&len); |
252b5132 RH |
3641 | |
3642 | demand_empty_rest_of_line (); | |
3643 | } | |
3644 | ||
3645 | /* The .stabx pseudo-op. This is similar to a normal .stabs | |
3646 | pseudo-op, but slightly different. A sample is | |
3647 | .stabx "main:F-1",.main,142,0 | |
3648 | The first argument is the symbol name to create. The second is the | |
3649 | value, and the third is the storage class. The fourth seems to be | |
3650 | always zero, and I am assuming it is the type. */ | |
3651 | ||
3652 | static void | |
98027b10 | 3653 | ppc_stabx (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
3654 | { |
3655 | char *name; | |
3656 | int len; | |
3657 | symbolS *sym; | |
3658 | expressionS exp; | |
3659 | ||
3660 | name = demand_copy_C_string (&len); | |
3661 | ||
3662 | if (*input_line_pointer != ',') | |
3663 | { | |
3664 | as_bad (_("missing value")); | |
3665 | return; | |
3666 | } | |
3667 | ++input_line_pointer; | |
3668 | ||
b34976b6 | 3669 | ppc_stab_symbol = TRUE; |
252b5132 | 3670 | sym = symbol_make (name); |
b34976b6 | 3671 | ppc_stab_symbol = FALSE; |
252b5132 | 3672 | |
809ffe0d | 3673 | symbol_get_tc (sym)->real_name = name; |
252b5132 RH |
3674 | |
3675 | (void) expression (&exp); | |
3676 | ||
3677 | switch (exp.X_op) | |
3678 | { | |
3679 | case O_illegal: | |
3680 | case O_absent: | |
3681 | case O_big: | |
3682 | as_bad (_("illegal .stabx expression; zero assumed")); | |
3683 | exp.X_add_number = 0; | |
3684 | /* Fall through. */ | |
3685 | case O_constant: | |
3686 | S_SET_VALUE (sym, (valueT) exp.X_add_number); | |
809ffe0d | 3687 | symbol_set_frag (sym, &zero_address_frag); |
252b5132 RH |
3688 | break; |
3689 | ||
3690 | case O_symbol: | |
3691 | if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section) | |
809ffe0d | 3692 | symbol_set_value_expression (sym, &exp); |
252b5132 RH |
3693 | else |
3694 | { | |
3695 | S_SET_VALUE (sym, | |
3696 | exp.X_add_number + S_GET_VALUE (exp.X_add_symbol)); | |
809ffe0d | 3697 | symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol)); |
252b5132 RH |
3698 | } |
3699 | break; | |
3700 | ||
3701 | default: | |
3702 | /* The value is some complex expression. This will probably | |
99a814a1 AM |
3703 | fail at some later point, but this is probably the right |
3704 | thing to do here. */ | |
809ffe0d | 3705 | symbol_set_value_expression (sym, &exp); |
252b5132 RH |
3706 | break; |
3707 | } | |
3708 | ||
3709 | S_SET_SEGMENT (sym, ppc_coff_debug_section); | |
809ffe0d | 3710 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3711 | |
3712 | if (*input_line_pointer != ',') | |
3713 | { | |
3714 | as_bad (_("missing class")); | |
3715 | return; | |
3716 | } | |
3717 | ++input_line_pointer; | |
3718 | ||
3719 | S_SET_STORAGE_CLASS (sym, get_absolute_expression ()); | |
3720 | ||
3721 | if (*input_line_pointer != ',') | |
3722 | { | |
3723 | as_bad (_("missing type")); | |
3724 | return; | |
3725 | } | |
3726 | ++input_line_pointer; | |
3727 | ||
3728 | S_SET_DATA_TYPE (sym, get_absolute_expression ()); | |
3729 | ||
809ffe0d | 3730 | symbol_get_tc (sym)->output = 1; |
252b5132 | 3731 | |
6877bb43 | 3732 | if (S_GET_STORAGE_CLASS (sym) == C_STSYM) { |
99a814a1 | 3733 | |
809ffe0d | 3734 | symbol_get_tc (sym)->within = ppc_current_block; |
252b5132 | 3735 | |
41ea10b1 | 3736 | /* In this case : |
99a814a1 | 3737 | |
41ea10b1 TR |
3738 | .bs name |
3739 | .stabx "z",arrays_,133,0 | |
3740 | .es | |
99a814a1 | 3741 | |
41ea10b1 | 3742 | .comm arrays_,13768,3 |
99a814a1 | 3743 | |
41ea10b1 TR |
3744 | resolve_symbol_value will copy the exp's "within" into sym's when the |
3745 | offset is 0. Since this seems to be corner case problem, | |
3746 | only do the correction for storage class C_STSYM. A better solution | |
0baf16f2 | 3747 | would be to have the tc field updated in ppc_symbol_new_hook. */ |
99a814a1 AM |
3748 | |
3749 | if (exp.X_op == O_symbol) | |
41ea10b1 TR |
3750 | { |
3751 | symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block; | |
3752 | } | |
6877bb43 | 3753 | } |
99a814a1 | 3754 | |
252b5132 RH |
3755 | if (exp.X_op != O_symbol |
3756 | || ! S_IS_EXTERNAL (exp.X_add_symbol) | |
3757 | || S_GET_SEGMENT (exp.X_add_symbol) != bss_section) | |
3758 | ppc_frob_label (sym); | |
3759 | else | |
3760 | { | |
3761 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
3762 | symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP); | |
809ffe0d ILT |
3763 | if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol) |
3764 | symbol_get_tc (ppc_current_csect)->within = sym; | |
252b5132 RH |
3765 | } |
3766 | ||
3767 | demand_empty_rest_of_line (); | |
3768 | } | |
3769 | ||
3770 | /* The .function pseudo-op. This takes several arguments. The first | |
3771 | argument seems to be the external name of the symbol. The second | |
67c1ffbe | 3772 | argument seems to be the label for the start of the function. gcc |
252b5132 RH |
3773 | uses the same name for both. I have no idea what the third and |
3774 | fourth arguments are meant to be. The optional fifth argument is | |
3775 | an expression for the size of the function. In COFF this symbol | |
3776 | gets an aux entry like that used for a csect. */ | |
3777 | ||
3778 | static void | |
98027b10 | 3779 | ppc_function (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
3780 | { |
3781 | char *name; | |
3782 | char endc; | |
3783 | char *s; | |
3784 | symbolS *ext_sym; | |
3785 | symbolS *lab_sym; | |
3786 | ||
3787 | name = input_line_pointer; | |
3788 | endc = get_symbol_end (); | |
3789 | ||
3790 | /* Ignore any [PR] suffix. */ | |
3791 | name = ppc_canonicalize_symbol_name (name); | |
3792 | s = strchr (name, '['); | |
3793 | if (s != (char *) NULL | |
3794 | && strcmp (s + 1, "PR]") == 0) | |
3795 | *s = '\0'; | |
3796 | ||
3797 | ext_sym = symbol_find_or_make (name); | |
3798 | ||
3799 | *input_line_pointer = endc; | |
3800 | ||
3801 | if (*input_line_pointer != ',') | |
3802 | { | |
3803 | as_bad (_("missing symbol name")); | |
3804 | ignore_rest_of_line (); | |
3805 | return; | |
3806 | } | |
3807 | ++input_line_pointer; | |
3808 | ||
3809 | name = input_line_pointer; | |
3810 | endc = get_symbol_end (); | |
3811 | ||
3812 | lab_sym = symbol_find_or_make (name); | |
3813 | ||
3814 | *input_line_pointer = endc; | |
3815 | ||
3816 | if (ext_sym != lab_sym) | |
3817 | { | |
809ffe0d ILT |
3818 | expressionS exp; |
3819 | ||
3820 | exp.X_op = O_symbol; | |
3821 | exp.X_add_symbol = lab_sym; | |
3822 | exp.X_op_symbol = NULL; | |
3823 | exp.X_add_number = 0; | |
3824 | exp.X_unsigned = 0; | |
3825 | symbol_set_value_expression (ext_sym, &exp); | |
252b5132 RH |
3826 | } |
3827 | ||
96d56e9f NC |
3828 | if (symbol_get_tc (ext_sym)->symbol_class == -1) |
3829 | symbol_get_tc (ext_sym)->symbol_class = XMC_PR; | |
809ffe0d | 3830 | symbol_get_tc (ext_sym)->output = 1; |
252b5132 RH |
3831 | |
3832 | if (*input_line_pointer == ',') | |
3833 | { | |
91d6fa6a | 3834 | expressionS exp; |
252b5132 RH |
3835 | |
3836 | /* Ignore the third argument. */ | |
3837 | ++input_line_pointer; | |
91d6fa6a | 3838 | expression (& exp); |
252b5132 RH |
3839 | if (*input_line_pointer == ',') |
3840 | { | |
3841 | /* Ignore the fourth argument. */ | |
3842 | ++input_line_pointer; | |
91d6fa6a | 3843 | expression (& exp); |
252b5132 RH |
3844 | if (*input_line_pointer == ',') |
3845 | { | |
3846 | /* The fifth argument is the function size. */ | |
3847 | ++input_line_pointer; | |
809ffe0d ILT |
3848 | symbol_get_tc (ext_sym)->size = symbol_new ("L0\001", |
3849 | absolute_section, | |
3850 | (valueT) 0, | |
3851 | &zero_address_frag); | |
3852 | pseudo_set (symbol_get_tc (ext_sym)->size); | |
252b5132 RH |
3853 | } |
3854 | } | |
3855 | } | |
3856 | ||
3857 | S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT); | |
3858 | SF_SET_FUNCTION (ext_sym); | |
3859 | SF_SET_PROCESS (ext_sym); | |
3860 | coff_add_linesym (ext_sym); | |
3861 | ||
3862 | demand_empty_rest_of_line (); | |
3863 | } | |
3864 | ||
3865 | /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named | |
8642cce8 TR |
3866 | ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym |
3867 | with the correct line number */ | |
5d6255fe | 3868 | |
8642cce8 | 3869 | static symbolS *saved_bi_sym = 0; |
252b5132 RH |
3870 | |
3871 | static void | |
98027b10 | 3872 | ppc_bf (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
3873 | { |
3874 | symbolS *sym; | |
3875 | ||
3876 | sym = symbol_make (".bf"); | |
3877 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3878 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3879 | S_SET_VALUE (sym, frag_now_fix ()); |
3880 | S_SET_STORAGE_CLASS (sym, C_FCN); | |
3881 | ||
3882 | coff_line_base = get_absolute_expression (); | |
3883 | ||
3884 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3885 | SA_SET_SYM_LNNO (sym, coff_line_base); | |
3886 | ||
8642cce8 | 3887 | /* Line number for bi. */ |
5d6255fe | 3888 | if (saved_bi_sym) |
8642cce8 TR |
3889 | { |
3890 | S_SET_VALUE (saved_bi_sym, coff_n_line_nos); | |
3891 | saved_bi_sym = 0; | |
3892 | } | |
5d6255fe | 3893 | |
8642cce8 | 3894 | |
809ffe0d | 3895 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3896 | |
3897 | ppc_frob_label (sym); | |
3898 | ||
3899 | demand_empty_rest_of_line (); | |
3900 | } | |
3901 | ||
3902 | /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named | |
3903 | ".ef", except that the line number is absolute, not relative to the | |
3904 | most recent ".bf" symbol. */ | |
3905 | ||
3906 | static void | |
98027b10 | 3907 | ppc_ef (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
3908 | { |
3909 | symbolS *sym; | |
3910 | ||
3911 | sym = symbol_make (".ef"); | |
3912 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 3913 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
3914 | S_SET_VALUE (sym, frag_now_fix ()); |
3915 | S_SET_STORAGE_CLASS (sym, C_FCN); | |
3916 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
3917 | SA_SET_SYM_LNNO (sym, get_absolute_expression ()); | |
809ffe0d | 3918 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
3919 | |
3920 | ppc_frob_label (sym); | |
3921 | ||
3922 | demand_empty_rest_of_line (); | |
3923 | } | |
3924 | ||
3925 | /* The .bi and .ei pseudo-ops. These take a string argument and | |
3926 | generates a C_BINCL or C_EINCL symbol, which goes at the start of | |
8642cce8 TR |
3927 | the symbol list. The value of .bi will be know when the next .bf |
3928 | is encountered. */ | |
252b5132 RH |
3929 | |
3930 | static void | |
98027b10 | 3931 | ppc_biei (int ei) |
252b5132 RH |
3932 | { |
3933 | static symbolS *last_biei; | |
3934 | ||
3935 | char *name; | |
3936 | int len; | |
3937 | symbolS *sym; | |
3938 | symbolS *look; | |
3939 | ||
3940 | name = demand_copy_C_string (&len); | |
3941 | ||
3942 | /* The value of these symbols is actually file offset. Here we set | |
3943 | the value to the index into the line number entries. In | |
3944 | ppc_frob_symbols we set the fix_line field, which will cause BFD | |
3945 | to do the right thing. */ | |
3946 | ||
3947 | sym = symbol_make (name); | |
3948 | /* obj-coff.c currently only handles line numbers correctly in the | |
3949 | .text section. */ | |
3950 | S_SET_SEGMENT (sym, text_section); | |
3951 | S_SET_VALUE (sym, coff_n_line_nos); | |
809ffe0d | 3952 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
3953 | |
3954 | S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL); | |
809ffe0d | 3955 | symbol_get_tc (sym)->output = 1; |
81d4177b | 3956 | |
8642cce8 | 3957 | /* Save bi. */ |
5d6255fe | 3958 | if (ei) |
8642cce8 TR |
3959 | saved_bi_sym = 0; |
3960 | else | |
3961 | saved_bi_sym = sym; | |
3962 | ||
252b5132 RH |
3963 | for (look = last_biei ? last_biei : symbol_rootP; |
3964 | (look != (symbolS *) NULL | |
3965 | && (S_GET_STORAGE_CLASS (look) == C_FILE | |
3966 | || S_GET_STORAGE_CLASS (look) == C_BINCL | |
3967 | || S_GET_STORAGE_CLASS (look) == C_EINCL)); | |
3968 | look = symbol_next (look)) | |
3969 | ; | |
3970 | if (look != (symbolS *) NULL) | |
3971 | { | |
3972 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
3973 | symbol_insert (sym, look, &symbol_rootP, &symbol_lastP); | |
3974 | last_biei = sym; | |
3975 | } | |
3976 | ||
3977 | demand_empty_rest_of_line (); | |
3978 | } | |
3979 | ||
3980 | /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs". | |
3981 | There is one argument, which is a csect symbol. The value of the | |
3982 | .bs symbol is the index of this csect symbol. */ | |
3983 | ||
3984 | static void | |
98027b10 | 3985 | ppc_bs (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
3986 | { |
3987 | char *name; | |
3988 | char endc; | |
3989 | symbolS *csect; | |
3990 | symbolS *sym; | |
3991 | ||
3992 | if (ppc_current_block != NULL) | |
3993 | as_bad (_("nested .bs blocks")); | |
3994 | ||
3995 | name = input_line_pointer; | |
3996 | endc = get_symbol_end (); | |
3997 | ||
3998 | csect = symbol_find_or_make (name); | |
3999 | ||
4000 | *input_line_pointer = endc; | |
4001 | ||
4002 | sym = symbol_make (".bs"); | |
4003 | S_SET_SEGMENT (sym, now_seg); | |
4004 | S_SET_STORAGE_CLASS (sym, C_BSTAT); | |
809ffe0d ILT |
4005 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
4006 | symbol_get_tc (sym)->output = 1; | |
252b5132 | 4007 | |
809ffe0d | 4008 | symbol_get_tc (sym)->within = csect; |
252b5132 RH |
4009 | |
4010 | ppc_frob_label (sym); | |
4011 | ||
4012 | ppc_current_block = sym; | |
4013 | ||
4014 | demand_empty_rest_of_line (); | |
4015 | } | |
4016 | ||
4017 | /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */ | |
4018 | ||
4019 | static void | |
98027b10 | 4020 | ppc_es (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
4021 | { |
4022 | symbolS *sym; | |
4023 | ||
4024 | if (ppc_current_block == NULL) | |
4025 | as_bad (_(".es without preceding .bs")); | |
4026 | ||
4027 | sym = symbol_make (".es"); | |
4028 | S_SET_SEGMENT (sym, now_seg); | |
4029 | S_SET_STORAGE_CLASS (sym, C_ESTAT); | |
809ffe0d ILT |
4030 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
4031 | symbol_get_tc (sym)->output = 1; | |
252b5132 RH |
4032 | |
4033 | ppc_frob_label (sym); | |
4034 | ||
4035 | ppc_current_block = NULL; | |
4036 | ||
4037 | demand_empty_rest_of_line (); | |
4038 | } | |
4039 | ||
4040 | /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a | |
4041 | line number. */ | |
4042 | ||
4043 | static void | |
98027b10 | 4044 | ppc_bb (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
4045 | { |
4046 | symbolS *sym; | |
4047 | ||
4048 | sym = symbol_make (".bb"); | |
4049 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 4050 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
4051 | S_SET_VALUE (sym, frag_now_fix ()); |
4052 | S_SET_STORAGE_CLASS (sym, C_BLOCK); | |
4053 | ||
4054 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
4055 | SA_SET_SYM_LNNO (sym, get_absolute_expression ()); | |
4056 | ||
809ffe0d | 4057 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
4058 | |
4059 | SF_SET_PROCESS (sym); | |
4060 | ||
4061 | ppc_frob_label (sym); | |
4062 | ||
4063 | demand_empty_rest_of_line (); | |
4064 | } | |
4065 | ||
4066 | /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a | |
4067 | line number. */ | |
4068 | ||
4069 | static void | |
98027b10 | 4070 | ppc_eb (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
4071 | { |
4072 | symbolS *sym; | |
4073 | ||
4074 | sym = symbol_make (".eb"); | |
4075 | S_SET_SEGMENT (sym, text_section); | |
809ffe0d | 4076 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
4077 | S_SET_VALUE (sym, frag_now_fix ()); |
4078 | S_SET_STORAGE_CLASS (sym, C_BLOCK); | |
4079 | S_SET_NUMBER_AUXILIARY (sym, 1); | |
4080 | SA_SET_SYM_LNNO (sym, get_absolute_expression ()); | |
809ffe0d | 4081 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
4082 | |
4083 | SF_SET_PROCESS (sym); | |
4084 | ||
4085 | ppc_frob_label (sym); | |
4086 | ||
4087 | demand_empty_rest_of_line (); | |
4088 | } | |
4089 | ||
4090 | /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a | |
4091 | specified name. */ | |
4092 | ||
4093 | static void | |
98027b10 | 4094 | ppc_bc (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
4095 | { |
4096 | char *name; | |
4097 | int len; | |
4098 | symbolS *sym; | |
4099 | ||
4100 | name = demand_copy_C_string (&len); | |
4101 | sym = symbol_make (name); | |
4102 | S_SET_SEGMENT (sym, ppc_coff_debug_section); | |
809ffe0d | 4103 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
4104 | S_SET_STORAGE_CLASS (sym, C_BCOMM); |
4105 | S_SET_VALUE (sym, 0); | |
809ffe0d | 4106 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
4107 | |
4108 | ppc_frob_label (sym); | |
4109 | ||
4110 | demand_empty_rest_of_line (); | |
4111 | } | |
4112 | ||
4113 | /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */ | |
4114 | ||
4115 | static void | |
98027b10 | 4116 | ppc_ec (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
4117 | { |
4118 | symbolS *sym; | |
4119 | ||
4120 | sym = symbol_make (".ec"); | |
4121 | S_SET_SEGMENT (sym, ppc_coff_debug_section); | |
809ffe0d | 4122 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING; |
252b5132 RH |
4123 | S_SET_STORAGE_CLASS (sym, C_ECOMM); |
4124 | S_SET_VALUE (sym, 0); | |
809ffe0d | 4125 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
4126 | |
4127 | ppc_frob_label (sym); | |
4128 | ||
4129 | demand_empty_rest_of_line (); | |
4130 | } | |
4131 | ||
4132 | /* The .toc pseudo-op. Switch to the .toc subsegment. */ | |
4133 | ||
4134 | static void | |
98027b10 | 4135 | ppc_toc (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
4136 | { |
4137 | if (ppc_toc_csect != (symbolS *) NULL) | |
809ffe0d | 4138 | subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg); |
252b5132 RH |
4139 | else |
4140 | { | |
4141 | subsegT subseg; | |
4142 | symbolS *sym; | |
4143 | symbolS *list; | |
81d4177b | 4144 | |
252b5132 RH |
4145 | subseg = ppc_data_subsegment; |
4146 | ++ppc_data_subsegment; | |
4147 | ||
4148 | subseg_new (segment_name (data_section), subseg); | |
4149 | ppc_toc_frag = frag_now; | |
4150 | ||
4151 | sym = symbol_find_or_make ("TOC[TC0]"); | |
809ffe0d | 4152 | symbol_set_frag (sym, frag_now); |
252b5132 RH |
4153 | S_SET_SEGMENT (sym, data_section); |
4154 | S_SET_VALUE (sym, (valueT) frag_now_fix ()); | |
809ffe0d ILT |
4155 | symbol_get_tc (sym)->subseg = subseg; |
4156 | symbol_get_tc (sym)->output = 1; | |
4157 | symbol_get_tc (sym)->within = sym; | |
252b5132 RH |
4158 | |
4159 | ppc_toc_csect = sym; | |
81d4177b | 4160 | |
252b5132 | 4161 | for (list = ppc_data_csects; |
809ffe0d ILT |
4162 | symbol_get_tc (list)->next != (symbolS *) NULL; |
4163 | list = symbol_get_tc (list)->next) | |
252b5132 | 4164 | ; |
809ffe0d | 4165 | symbol_get_tc (list)->next = sym; |
252b5132 RH |
4166 | |
4167 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
809ffe0d ILT |
4168 | symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP, |
4169 | &symbol_lastP); | |
252b5132 RH |
4170 | } |
4171 | ||
4172 | ppc_current_csect = ppc_toc_csect; | |
4173 | ||
4174 | demand_empty_rest_of_line (); | |
4175 | } | |
4176 | ||
4177 | /* The AIX assembler automatically aligns the operands of a .long or | |
4178 | .short pseudo-op, and we want to be compatible. */ | |
4179 | ||
4180 | static void | |
98027b10 | 4181 | ppc_xcoff_cons (int log_size) |
252b5132 RH |
4182 | { |
4183 | frag_align (log_size, 0, 0); | |
4184 | record_alignment (now_seg, log_size); | |
4185 | cons (1 << log_size); | |
4186 | } | |
4187 | ||
4188 | static void | |
98027b10 | 4189 | ppc_vbyte (int dummy ATTRIBUTE_UNUSED) |
252b5132 RH |
4190 | { |
4191 | expressionS exp; | |
4192 | int byte_count; | |
4193 | ||
4194 | (void) expression (&exp); | |
4195 | ||
4196 | if (exp.X_op != O_constant) | |
4197 | { | |
4198 | as_bad (_("non-constant byte count")); | |
4199 | return; | |
4200 | } | |
4201 | ||
4202 | byte_count = exp.X_add_number; | |
4203 | ||
4204 | if (*input_line_pointer != ',') | |
4205 | { | |
4206 | as_bad (_("missing value")); | |
4207 | return; | |
4208 | } | |
4209 | ||
4210 | ++input_line_pointer; | |
4211 | cons (byte_count); | |
4212 | } | |
4213 | ||
4214 | #endif /* OBJ_XCOFF */ | |
0baf16f2 | 4215 | #if defined (OBJ_XCOFF) || defined (OBJ_ELF) |
252b5132 RH |
4216 | \f |
4217 | /* The .tc pseudo-op. This is used when generating either XCOFF or | |
4218 | ELF. This takes two or more arguments. | |
4219 | ||
4220 | When generating XCOFF output, the first argument is the name to | |
4221 | give to this location in the toc; this will be a symbol with class | |
0baf16f2 | 4222 | TC. The rest of the arguments are N-byte values to actually put at |
252b5132 | 4223 | this location in the TOC; often there is just one more argument, a |
1049f94e | 4224 | relocatable symbol reference. The size of the value to store |
0baf16f2 AM |
4225 | depends on target word size. A 32-bit target uses 4-byte values, a |
4226 | 64-bit target uses 8-byte values. | |
252b5132 RH |
4227 | |
4228 | When not generating XCOFF output, the arguments are the same, but | |
4229 | the first argument is simply ignored. */ | |
4230 | ||
4231 | static void | |
98027b10 | 4232 | ppc_tc (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
4233 | { |
4234 | #ifdef OBJ_XCOFF | |
4235 | ||
4236 | /* Define the TOC symbol name. */ | |
4237 | { | |
4238 | char *name; | |
4239 | char endc; | |
4240 | symbolS *sym; | |
4241 | ||
4242 | if (ppc_toc_csect == (symbolS *) NULL | |
4243 | || ppc_toc_csect != ppc_current_csect) | |
4244 | { | |
4245 | as_bad (_(".tc not in .toc section")); | |
4246 | ignore_rest_of_line (); | |
4247 | return; | |
4248 | } | |
4249 | ||
4250 | name = input_line_pointer; | |
4251 | endc = get_symbol_end (); | |
4252 | ||
4253 | sym = symbol_find_or_make (name); | |
4254 | ||
4255 | *input_line_pointer = endc; | |
4256 | ||
4257 | if (S_IS_DEFINED (sym)) | |
4258 | { | |
4259 | symbolS *label; | |
4260 | ||
809ffe0d | 4261 | label = symbol_get_tc (ppc_current_csect)->within; |
96d56e9f | 4262 | if (symbol_get_tc (label)->symbol_class != XMC_TC0) |
252b5132 RH |
4263 | { |
4264 | as_bad (_(".tc with no label")); | |
4265 | ignore_rest_of_line (); | |
4266 | return; | |
4267 | } | |
4268 | ||
4269 | S_SET_SEGMENT (label, S_GET_SEGMENT (sym)); | |
809ffe0d | 4270 | symbol_set_frag (label, symbol_get_frag (sym)); |
252b5132 RH |
4271 | S_SET_VALUE (label, S_GET_VALUE (sym)); |
4272 | ||
4273 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
4274 | ++input_line_pointer; | |
4275 | ||
4276 | return; | |
4277 | } | |
4278 | ||
4279 | S_SET_SEGMENT (sym, now_seg); | |
809ffe0d | 4280 | symbol_set_frag (sym, frag_now); |
252b5132 | 4281 | S_SET_VALUE (sym, (valueT) frag_now_fix ()); |
96d56e9f | 4282 | symbol_get_tc (sym)->symbol_class = XMC_TC; |
809ffe0d | 4283 | symbol_get_tc (sym)->output = 1; |
252b5132 RH |
4284 | |
4285 | ppc_frob_label (sym); | |
4286 | } | |
4287 | ||
0baf16f2 AM |
4288 | #endif /* OBJ_XCOFF */ |
4289 | #ifdef OBJ_ELF | |
9c7977b3 | 4290 | int align; |
252b5132 RH |
4291 | |
4292 | /* Skip the TOC symbol name. */ | |
4293 | while (is_part_of_name (*input_line_pointer) | |
d13d4015 | 4294 | || *input_line_pointer == ' ' |
252b5132 RH |
4295 | || *input_line_pointer == '[' |
4296 | || *input_line_pointer == ']' | |
4297 | || *input_line_pointer == '{' | |
4298 | || *input_line_pointer == '}') | |
4299 | ++input_line_pointer; | |
4300 | ||
0baf16f2 | 4301 | /* Align to a four/eight byte boundary. */ |
2b3c4602 | 4302 | align = ppc_obj64 ? 3 : 2; |
9c7977b3 AM |
4303 | frag_align (align, 0, 0); |
4304 | record_alignment (now_seg, align); | |
0baf16f2 | 4305 | #endif /* OBJ_ELF */ |
252b5132 RH |
4306 | |
4307 | if (*input_line_pointer != ',') | |
4308 | demand_empty_rest_of_line (); | |
4309 | else | |
4310 | { | |
4311 | ++input_line_pointer; | |
2b3c4602 | 4312 | cons (ppc_obj64 ? 8 : 4); |
252b5132 RH |
4313 | } |
4314 | } | |
0baf16f2 AM |
4315 | |
4316 | /* Pseudo-op .machine. */ | |
0baf16f2 AM |
4317 | |
4318 | static void | |
98027b10 | 4319 | ppc_machine (int ignore ATTRIBUTE_UNUSED) |
0baf16f2 | 4320 | { |
69c040df AM |
4321 | char *cpu_string; |
4322 | #define MAX_HISTORY 100 | |
fa452fa6 | 4323 | static ppc_cpu_t *cpu_history; |
69c040df AM |
4324 | static int curr_hist; |
4325 | ||
4326 | SKIP_WHITESPACE (); | |
4327 | ||
4328 | if (*input_line_pointer == '"') | |
4329 | { | |
4330 | int len; | |
4331 | cpu_string = demand_copy_C_string (&len); | |
4332 | } | |
4333 | else | |
4334 | { | |
4335 | char c; | |
4336 | cpu_string = input_line_pointer; | |
4337 | c = get_symbol_end (); | |
4338 | cpu_string = xstrdup (cpu_string); | |
4339 | *input_line_pointer = c; | |
4340 | } | |
4341 | ||
4342 | if (cpu_string != NULL) | |
4343 | { | |
fa452fa6 | 4344 | ppc_cpu_t old_cpu = ppc_cpu; |
69fe9ce5 | 4345 | ppc_cpu_t new_cpu; |
69c040df AM |
4346 | char *p; |
4347 | ||
4348 | for (p = cpu_string; *p != 0; p++) | |
4349 | *p = TOLOWER (*p); | |
4350 | ||
4351 | if (strcmp (cpu_string, "push") == 0) | |
4352 | { | |
4353 | if (cpu_history == NULL) | |
4354 | cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history)); | |
4355 | ||
4356 | if (curr_hist >= MAX_HISTORY) | |
4357 | as_bad (_(".machine stack overflow")); | |
4358 | else | |
4359 | cpu_history[curr_hist++] = ppc_cpu; | |
4360 | } | |
4361 | else if (strcmp (cpu_string, "pop") == 0) | |
4362 | { | |
4363 | if (curr_hist <= 0) | |
4364 | as_bad (_(".machine stack underflow")); | |
4365 | else | |
4366 | ppc_cpu = cpu_history[--curr_hist]; | |
4367 | } | |
69fe9ce5 AM |
4368 | else if ((new_cpu = ppc_parse_cpu (ppc_cpu, cpu_string)) != 0) |
4369 | ppc_cpu = new_cpu; | |
69c040df AM |
4370 | else |
4371 | as_bad (_("invalid machine `%s'"), cpu_string); | |
4372 | ||
4373 | if (ppc_cpu != old_cpu) | |
4374 | ppc_setup_opcodes (); | |
4375 | } | |
4376 | ||
4377 | demand_empty_rest_of_line (); | |
0baf16f2 AM |
4378 | } |
4379 | ||
4380 | /* See whether a symbol is in the TOC section. */ | |
4381 | ||
4382 | static int | |
98027b10 | 4383 | ppc_is_toc_sym (symbolS *sym) |
0baf16f2 AM |
4384 | { |
4385 | #ifdef OBJ_XCOFF | |
96d56e9f | 4386 | return symbol_get_tc (sym)->symbol_class == XMC_TC; |
0baf16f2 AM |
4387 | #endif |
4388 | #ifdef OBJ_ELF | |
4389 | const char *sname = segment_name (S_GET_SEGMENT (sym)); | |
2b3c4602 | 4390 | if (ppc_obj64) |
0baf16f2 AM |
4391 | return strcmp (sname, ".toc") == 0; |
4392 | else | |
4393 | return strcmp (sname, ".got") == 0; | |
4394 | #endif | |
4395 | } | |
4396 | #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */ | |
252b5132 RH |
4397 | \f |
4398 | #ifdef TE_PE | |
4399 | ||
99a814a1 | 4400 | /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */ |
252b5132 RH |
4401 | |
4402 | /* Set the current section. */ | |
4403 | static void | |
98027b10 | 4404 | ppc_set_current_section (segT new) |
252b5132 RH |
4405 | { |
4406 | ppc_previous_section = ppc_current_section; | |
4407 | ppc_current_section = new; | |
4408 | } | |
4409 | ||
4410 | /* pseudo-op: .previous | |
4411 | behaviour: toggles the current section with the previous section. | |
4412 | errors: None | |
99a814a1 AM |
4413 | warnings: "No previous section" */ |
4414 | ||
252b5132 | 4415 | static void |
98027b10 | 4416 | ppc_previous (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
4417 | { |
4418 | symbolS *tmp; | |
4419 | ||
81d4177b | 4420 | if (ppc_previous_section == NULL) |
252b5132 | 4421 | { |
99a814a1 | 4422 | as_warn (_("No previous section to return to. Directive ignored.")); |
252b5132 RH |
4423 | return; |
4424 | } | |
4425 | ||
99a814a1 | 4426 | subseg_set (ppc_previous_section, 0); |
252b5132 | 4427 | |
99a814a1 | 4428 | ppc_set_current_section (ppc_previous_section); |
252b5132 RH |
4429 | } |
4430 | ||
4431 | /* pseudo-op: .pdata | |
4432 | behaviour: predefined read only data section | |
b34976b6 | 4433 | double word aligned |
252b5132 RH |
4434 | errors: None |
4435 | warnings: None | |
4436 | initial: .section .pdata "adr3" | |
b34976b6 | 4437 | a - don't know -- maybe a misprint |
252b5132 RH |
4438 | d - initialized data |
4439 | r - readable | |
4440 | 3 - double word aligned (that would be 4 byte boundary) | |
4441 | ||
4442 | commentary: | |
4443 | Tag index tables (also known as the function table) for exception | |
99a814a1 | 4444 | handling, debugging, etc. */ |
252b5132 | 4445 | |
252b5132 | 4446 | static void |
98027b10 | 4447 | ppc_pdata (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 4448 | { |
81d4177b | 4449 | if (pdata_section == 0) |
252b5132 RH |
4450 | { |
4451 | pdata_section = subseg_new (".pdata", 0); | |
81d4177b | 4452 | |
252b5132 RH |
4453 | bfd_set_section_flags (stdoutput, pdata_section, |
4454 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
4455 | | SEC_READONLY | SEC_DATA )); | |
81d4177b | 4456 | |
252b5132 RH |
4457 | bfd_set_section_alignment (stdoutput, pdata_section, 2); |
4458 | } | |
4459 | else | |
4460 | { | |
99a814a1 | 4461 | pdata_section = subseg_new (".pdata", 0); |
252b5132 | 4462 | } |
99a814a1 | 4463 | ppc_set_current_section (pdata_section); |
252b5132 RH |
4464 | } |
4465 | ||
4466 | /* pseudo-op: .ydata | |
4467 | behaviour: predefined read only data section | |
b34976b6 | 4468 | double word aligned |
252b5132 RH |
4469 | errors: None |
4470 | warnings: None | |
4471 | initial: .section .ydata "drw3" | |
b34976b6 | 4472 | a - don't know -- maybe a misprint |
252b5132 RH |
4473 | d - initialized data |
4474 | r - readable | |
4475 | 3 - double word aligned (that would be 4 byte boundary) | |
4476 | commentary: | |
4477 | Tag tables (also known as the scope table) for exception handling, | |
99a814a1 AM |
4478 | debugging, etc. */ |
4479 | ||
252b5132 | 4480 | static void |
98027b10 | 4481 | ppc_ydata (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 4482 | { |
81d4177b | 4483 | if (ydata_section == 0) |
252b5132 RH |
4484 | { |
4485 | ydata_section = subseg_new (".ydata", 0); | |
4486 | bfd_set_section_flags (stdoutput, ydata_section, | |
99a814a1 AM |
4487 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
4488 | | SEC_READONLY | SEC_DATA )); | |
252b5132 RH |
4489 | |
4490 | bfd_set_section_alignment (stdoutput, ydata_section, 3); | |
4491 | } | |
4492 | else | |
4493 | { | |
4494 | ydata_section = subseg_new (".ydata", 0); | |
4495 | } | |
99a814a1 | 4496 | ppc_set_current_section (ydata_section); |
252b5132 RH |
4497 | } |
4498 | ||
4499 | /* pseudo-op: .reldata | |
4500 | behaviour: predefined read write data section | |
b34976b6 | 4501 | double word aligned (4-byte) |
252b5132 RH |
4502 | FIXME: relocation is applied to it |
4503 | FIXME: what's the difference between this and .data? | |
4504 | errors: None | |
4505 | warnings: None | |
4506 | initial: .section .reldata "drw3" | |
4507 | d - initialized data | |
4508 | r - readable | |
4509 | w - writeable | |
4510 | 3 - double word aligned (that would be 8 byte boundary) | |
4511 | ||
4512 | commentary: | |
4513 | Like .data, but intended to hold data subject to relocation, such as | |
99a814a1 AM |
4514 | function descriptors, etc. */ |
4515 | ||
252b5132 | 4516 | static void |
98027b10 | 4517 | ppc_reldata (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
4518 | { |
4519 | if (reldata_section == 0) | |
4520 | { | |
4521 | reldata_section = subseg_new (".reldata", 0); | |
4522 | ||
4523 | bfd_set_section_flags (stdoutput, reldata_section, | |
99a814a1 AM |
4524 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
4525 | | SEC_DATA)); | |
252b5132 RH |
4526 | |
4527 | bfd_set_section_alignment (stdoutput, reldata_section, 2); | |
4528 | } | |
4529 | else | |
4530 | { | |
4531 | reldata_section = subseg_new (".reldata", 0); | |
4532 | } | |
99a814a1 | 4533 | ppc_set_current_section (reldata_section); |
252b5132 RH |
4534 | } |
4535 | ||
4536 | /* pseudo-op: .rdata | |
4537 | behaviour: predefined read only data section | |
b34976b6 | 4538 | double word aligned |
252b5132 RH |
4539 | errors: None |
4540 | warnings: None | |
4541 | initial: .section .rdata "dr3" | |
4542 | d - initialized data | |
4543 | r - readable | |
99a814a1 AM |
4544 | 3 - double word aligned (that would be 4 byte boundary) */ |
4545 | ||
252b5132 | 4546 | static void |
98027b10 | 4547 | ppc_rdata (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
4548 | { |
4549 | if (rdata_section == 0) | |
4550 | { | |
4551 | rdata_section = subseg_new (".rdata", 0); | |
4552 | bfd_set_section_flags (stdoutput, rdata_section, | |
4553 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
4554 | | SEC_READONLY | SEC_DATA )); | |
4555 | ||
4556 | bfd_set_section_alignment (stdoutput, rdata_section, 2); | |
4557 | } | |
4558 | else | |
4559 | { | |
4560 | rdata_section = subseg_new (".rdata", 0); | |
4561 | } | |
99a814a1 | 4562 | ppc_set_current_section (rdata_section); |
252b5132 RH |
4563 | } |
4564 | ||
4565 | /* pseudo-op: .ualong | |
81d4177b | 4566 | behaviour: much like .int, with the exception that no alignment is |
b34976b6 | 4567 | performed. |
252b5132 RH |
4568 | FIXME: test the alignment statement |
4569 | errors: None | |
99a814a1 AM |
4570 | warnings: None */ |
4571 | ||
252b5132 | 4572 | static void |
98027b10 | 4573 | ppc_ualong (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 4574 | { |
99a814a1 AM |
4575 | /* Try for long. */ |
4576 | cons (4); | |
252b5132 RH |
4577 | } |
4578 | ||
4579 | /* pseudo-op: .znop <symbol name> | |
4580 | behaviour: Issue a nop instruction | |
b34976b6 | 4581 | Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using |
252b5132 RH |
4582 | the supplied symbol name. |
4583 | errors: None | |
99a814a1 AM |
4584 | warnings: Missing symbol name */ |
4585 | ||
252b5132 | 4586 | static void |
98027b10 | 4587 | ppc_znop (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
4588 | { |
4589 | unsigned long insn; | |
4590 | const struct powerpc_opcode *opcode; | |
4591 | expressionS ex; | |
4592 | char *f; | |
252b5132 | 4593 | symbolS *sym; |
252b5132 RH |
4594 | char *symbol_name; |
4595 | char c; | |
4596 | char *name; | |
4597 | unsigned int exp; | |
4598 | flagword flags; | |
4599 | asection *sec; | |
4600 | ||
99a814a1 | 4601 | /* Strip out the symbol name. */ |
252b5132 RH |
4602 | symbol_name = input_line_pointer; |
4603 | c = get_symbol_end (); | |
4604 | ||
4605 | name = xmalloc (input_line_pointer - symbol_name + 1); | |
4606 | strcpy (name, symbol_name); | |
4607 | ||
4608 | sym = symbol_find_or_make (name); | |
4609 | ||
4610 | *input_line_pointer = c; | |
4611 | ||
4612 | SKIP_WHITESPACE (); | |
4613 | ||
4614 | /* Look up the opcode in the hash table. */ | |
4615 | opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop"); | |
4616 | ||
99a814a1 | 4617 | /* Stick in the nop. */ |
252b5132 RH |
4618 | insn = opcode->opcode; |
4619 | ||
4620 | /* Write out the instruction. */ | |
4621 | f = frag_more (4); | |
4622 | md_number_to_chars (f, insn, 4); | |
4623 | fix_new (frag_now, | |
4624 | f - frag_now->fr_literal, | |
4625 | 4, | |
4626 | sym, | |
4627 | 0, | |
4628 | 0, | |
4629 | BFD_RELOC_16_GOT_PCREL); | |
4630 | ||
4631 | } | |
4632 | ||
81d4177b KH |
4633 | /* pseudo-op: |
4634 | behaviour: | |
4635 | errors: | |
99a814a1 AM |
4636 | warnings: */ |
4637 | ||
252b5132 | 4638 | static void |
98027b10 | 4639 | ppc_pe_comm (int lcomm) |
252b5132 | 4640 | { |
98027b10 AM |
4641 | char *name; |
4642 | char c; | |
4643 | char *p; | |
252b5132 | 4644 | offsetT temp; |
98027b10 | 4645 | symbolS *symbolP; |
252b5132 RH |
4646 | offsetT align; |
4647 | ||
4648 | name = input_line_pointer; | |
4649 | c = get_symbol_end (); | |
4650 | ||
99a814a1 | 4651 | /* just after name is now '\0'. */ |
252b5132 RH |
4652 | p = input_line_pointer; |
4653 | *p = c; | |
4654 | SKIP_WHITESPACE (); | |
4655 | if (*input_line_pointer != ',') | |
4656 | { | |
4657 | as_bad (_("Expected comma after symbol-name: rest of line ignored.")); | |
4658 | ignore_rest_of_line (); | |
4659 | return; | |
4660 | } | |
4661 | ||
4662 | input_line_pointer++; /* skip ',' */ | |
4663 | if ((temp = get_absolute_expression ()) < 0) | |
4664 | { | |
4665 | as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp); | |
4666 | ignore_rest_of_line (); | |
4667 | return; | |
4668 | } | |
4669 | ||
4670 | if (! lcomm) | |
4671 | { | |
4672 | /* The third argument to .comm is the alignment. */ | |
4673 | if (*input_line_pointer != ',') | |
4674 | align = 3; | |
4675 | else | |
4676 | { | |
4677 | ++input_line_pointer; | |
4678 | align = get_absolute_expression (); | |
4679 | if (align <= 0) | |
4680 | { | |
4681 | as_warn (_("ignoring bad alignment")); | |
4682 | align = 3; | |
4683 | } | |
4684 | } | |
4685 | } | |
4686 | ||
4687 | *p = 0; | |
4688 | symbolP = symbol_find_or_make (name); | |
4689 | ||
4690 | *p = c; | |
4691 | if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) | |
4692 | { | |
4693 | as_bad (_("Ignoring attempt to re-define symbol `%s'."), | |
4694 | S_GET_NAME (symbolP)); | |
4695 | ignore_rest_of_line (); | |
4696 | return; | |
4697 | } | |
4698 | ||
4699 | if (S_GET_VALUE (symbolP)) | |
4700 | { | |
4701 | if (S_GET_VALUE (symbolP) != (valueT) temp) | |
4702 | as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."), | |
4703 | S_GET_NAME (symbolP), | |
4704 | (long) S_GET_VALUE (symbolP), | |
4705 | (long) temp); | |
4706 | } | |
4707 | else | |
4708 | { | |
4709 | S_SET_VALUE (symbolP, (valueT) temp); | |
4710 | S_SET_EXTERNAL (symbolP); | |
86ebace2 | 4711 | S_SET_SEGMENT (symbolP, bfd_com_section_ptr); |
252b5132 RH |
4712 | } |
4713 | ||
4714 | demand_empty_rest_of_line (); | |
4715 | } | |
4716 | ||
4717 | /* | |
4718 | * implement the .section pseudo op: | |
4719 | * .section name {, "flags"} | |
4720 | * ^ ^ | |
4721 | * | +--- optional flags: 'b' for bss | |
4722 | * | 'i' for info | |
4723 | * +-- section name 'l' for lib | |
4724 | * 'n' for noload | |
4725 | * 'o' for over | |
4726 | * 'w' for data | |
4727 | * 'd' (apparently m88k for data) | |
4728 | * 'x' for text | |
4729 | * But if the argument is not a quoted string, treat it as a | |
4730 | * subsegment number. | |
4731 | * | |
4732 | * FIXME: this is a copy of the section processing from obj-coff.c, with | |
4733 | * additions/changes for the moto-pas assembler support. There are three | |
4734 | * categories: | |
4735 | * | |
81d4177b | 4736 | * FIXME: I just noticed this. This doesn't work at all really. It it |
252b5132 RH |
4737 | * setting bits that bfd probably neither understands or uses. The |
4738 | * correct approach (?) will have to incorporate extra fields attached | |
4739 | * to the section to hold the system specific stuff. (krk) | |
4740 | * | |
4741 | * Section Contents: | |
4742 | * 'a' - unknown - referred to in documentation, but no definition supplied | |
4743 | * 'c' - section has code | |
4744 | * 'd' - section has initialized data | |
4745 | * 'u' - section has uninitialized data | |
4746 | * 'i' - section contains directives (info) | |
4747 | * 'n' - section can be discarded | |
4748 | * 'R' - remove section at link time | |
4749 | * | |
4750 | * Section Protection: | |
4751 | * 'r' - section is readable | |
4752 | * 'w' - section is writeable | |
4753 | * 'x' - section is executable | |
4754 | * 's' - section is sharable | |
4755 | * | |
4756 | * Section Alignment: | |
4757 | * '0' - align to byte boundary | |
4758 | * '1' - align to halfword undary | |
4759 | * '2' - align to word boundary | |
4760 | * '3' - align to doubleword boundary | |
4761 | * '4' - align to quadword boundary | |
4762 | * '5' - align to 32 byte boundary | |
4763 | * '6' - align to 64 byte boundary | |
4764 | * | |
4765 | */ | |
4766 | ||
4767 | void | |
98027b10 | 4768 | ppc_pe_section (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 4769 | { |
99a814a1 | 4770 | /* Strip out the section name. */ |
252b5132 RH |
4771 | char *section_name; |
4772 | char c; | |
4773 | char *name; | |
4774 | unsigned int exp; | |
4775 | flagword flags; | |
4776 | segT sec; | |
4777 | int align; | |
4778 | ||
4779 | section_name = input_line_pointer; | |
4780 | c = get_symbol_end (); | |
4781 | ||
4782 | name = xmalloc (input_line_pointer - section_name + 1); | |
4783 | strcpy (name, section_name); | |
4784 | ||
4785 | *input_line_pointer = c; | |
4786 | ||
4787 | SKIP_WHITESPACE (); | |
4788 | ||
4789 | exp = 0; | |
4790 | flags = SEC_NO_FLAGS; | |
4791 | ||
4792 | if (strcmp (name, ".idata$2") == 0) | |
4793 | { | |
4794 | align = 0; | |
4795 | } | |
4796 | else if (strcmp (name, ".idata$3") == 0) | |
4797 | { | |
4798 | align = 0; | |
4799 | } | |
4800 | else if (strcmp (name, ".idata$4") == 0) | |
4801 | { | |
4802 | align = 2; | |
4803 | } | |
4804 | else if (strcmp (name, ".idata$5") == 0) | |
4805 | { | |
4806 | align = 2; | |
4807 | } | |
4808 | else if (strcmp (name, ".idata$6") == 0) | |
4809 | { | |
4810 | align = 1; | |
4811 | } | |
4812 | else | |
99a814a1 AM |
4813 | /* Default alignment to 16 byte boundary. */ |
4814 | align = 4; | |
252b5132 RH |
4815 | |
4816 | if (*input_line_pointer == ',') | |
4817 | { | |
4818 | ++input_line_pointer; | |
4819 | SKIP_WHITESPACE (); | |
4820 | if (*input_line_pointer != '"') | |
4821 | exp = get_absolute_expression (); | |
4822 | else | |
4823 | { | |
4824 | ++input_line_pointer; | |
4825 | while (*input_line_pointer != '"' | |
4826 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
4827 | { | |
4828 | switch (*input_line_pointer) | |
4829 | { | |
4830 | /* Section Contents */ | |
4831 | case 'a': /* unknown */ | |
4832 | as_bad (_("Unsupported section attribute -- 'a'")); | |
4833 | break; | |
4834 | case 'c': /* code section */ | |
81d4177b | 4835 | flags |= SEC_CODE; |
252b5132 RH |
4836 | break; |
4837 | case 'd': /* section has initialized data */ | |
4838 | flags |= SEC_DATA; | |
4839 | break; | |
4840 | case 'u': /* section has uninitialized data */ | |
4841 | /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA | |
4842 | in winnt.h */ | |
4843 | flags |= SEC_ROM; | |
4844 | break; | |
4845 | case 'i': /* section contains directives (info) */ | |
4846 | /* FIXME: This is IMAGE_SCN_LNK_INFO | |
4847 | in winnt.h */ | |
4848 | flags |= SEC_HAS_CONTENTS; | |
4849 | break; | |
4850 | case 'n': /* section can be discarded */ | |
81d4177b | 4851 | flags &=~ SEC_LOAD; |
252b5132 RH |
4852 | break; |
4853 | case 'R': /* Remove section at link time */ | |
4854 | flags |= SEC_NEVER_LOAD; | |
4855 | break; | |
8d452c78 | 4856 | #if IFLICT_BRAIN_DAMAGE |
252b5132 RH |
4857 | /* Section Protection */ |
4858 | case 'r': /* section is readable */ | |
4859 | flags |= IMAGE_SCN_MEM_READ; | |
4860 | break; | |
4861 | case 'w': /* section is writeable */ | |
4862 | flags |= IMAGE_SCN_MEM_WRITE; | |
4863 | break; | |
4864 | case 'x': /* section is executable */ | |
4865 | flags |= IMAGE_SCN_MEM_EXECUTE; | |
4866 | break; | |
4867 | case 's': /* section is sharable */ | |
4868 | flags |= IMAGE_SCN_MEM_SHARED; | |
4869 | break; | |
4870 | ||
4871 | /* Section Alignment */ | |
4872 | case '0': /* align to byte boundary */ | |
4873 | flags |= IMAGE_SCN_ALIGN_1BYTES; | |
4874 | align = 0; | |
4875 | break; | |
4876 | case '1': /* align to halfword boundary */ | |
4877 | flags |= IMAGE_SCN_ALIGN_2BYTES; | |
4878 | align = 1; | |
4879 | break; | |
4880 | case '2': /* align to word boundary */ | |
4881 | flags |= IMAGE_SCN_ALIGN_4BYTES; | |
4882 | align = 2; | |
4883 | break; | |
4884 | case '3': /* align to doubleword boundary */ | |
4885 | flags |= IMAGE_SCN_ALIGN_8BYTES; | |
4886 | align = 3; | |
4887 | break; | |
4888 | case '4': /* align to quadword boundary */ | |
4889 | flags |= IMAGE_SCN_ALIGN_16BYTES; | |
4890 | align = 4; | |
4891 | break; | |
4892 | case '5': /* align to 32 byte boundary */ | |
4893 | flags |= IMAGE_SCN_ALIGN_32BYTES; | |
4894 | align = 5; | |
4895 | break; | |
4896 | case '6': /* align to 64 byte boundary */ | |
4897 | flags |= IMAGE_SCN_ALIGN_64BYTES; | |
4898 | align = 6; | |
4899 | break; | |
8d452c78 | 4900 | #endif |
252b5132 | 4901 | default: |
99a814a1 AM |
4902 | as_bad (_("unknown section attribute '%c'"), |
4903 | *input_line_pointer); | |
252b5132 RH |
4904 | break; |
4905 | } | |
4906 | ++input_line_pointer; | |
4907 | } | |
4908 | if (*input_line_pointer == '"') | |
4909 | ++input_line_pointer; | |
4910 | } | |
4911 | } | |
4912 | ||
4913 | sec = subseg_new (name, (subsegT) exp); | |
4914 | ||
99a814a1 | 4915 | ppc_set_current_section (sec); |
252b5132 RH |
4916 | |
4917 | if (flags != SEC_NO_FLAGS) | |
4918 | { | |
4919 | if (! bfd_set_section_flags (stdoutput, sec, flags)) | |
4920 | as_bad (_("error setting flags for \"%s\": %s"), | |
4921 | bfd_section_name (stdoutput, sec), | |
4922 | bfd_errmsg (bfd_get_error ())); | |
4923 | } | |
4924 | ||
99a814a1 | 4925 | bfd_set_section_alignment (stdoutput, sec, align); |
252b5132 RH |
4926 | } |
4927 | ||
4928 | static void | |
98027b10 | 4929 | ppc_pe_function (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
4930 | { |
4931 | char *name; | |
4932 | char endc; | |
4933 | symbolS *ext_sym; | |
4934 | ||
4935 | name = input_line_pointer; | |
4936 | endc = get_symbol_end (); | |
4937 | ||
4938 | ext_sym = symbol_find_or_make (name); | |
4939 | ||
4940 | *input_line_pointer = endc; | |
4941 | ||
4942 | S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT); | |
4943 | SF_SET_FUNCTION (ext_sym); | |
4944 | SF_SET_PROCESS (ext_sym); | |
4945 | coff_add_linesym (ext_sym); | |
4946 | ||
4947 | demand_empty_rest_of_line (); | |
4948 | } | |
4949 | ||
4950 | static void | |
98027b10 | 4951 | ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
4952 | { |
4953 | if (tocdata_section == 0) | |
4954 | { | |
4955 | tocdata_section = subseg_new (".tocd", 0); | |
99a814a1 | 4956 | /* FIXME: section flags won't work. */ |
252b5132 RH |
4957 | bfd_set_section_flags (stdoutput, tocdata_section, |
4958 | (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
99a814a1 | 4959 | | SEC_READONLY | SEC_DATA)); |
252b5132 RH |
4960 | |
4961 | bfd_set_section_alignment (stdoutput, tocdata_section, 2); | |
4962 | } | |
4963 | else | |
4964 | { | |
4965 | rdata_section = subseg_new (".tocd", 0); | |
4966 | } | |
4967 | ||
99a814a1 | 4968 | ppc_set_current_section (tocdata_section); |
252b5132 RH |
4969 | |
4970 | demand_empty_rest_of_line (); | |
4971 | } | |
4972 | ||
4973 | /* Don't adjust TOC relocs to use the section symbol. */ | |
4974 | ||
4975 | int | |
98027b10 | 4976 | ppc_pe_fix_adjustable (fixS *fix) |
252b5132 RH |
4977 | { |
4978 | return fix->fx_r_type != BFD_RELOC_PPC_TOC16; | |
4979 | } | |
4980 | ||
4981 | #endif | |
4982 | \f | |
4983 | #ifdef OBJ_XCOFF | |
4984 | ||
4985 | /* XCOFF specific symbol and file handling. */ | |
4986 | ||
4987 | /* Canonicalize the symbol name. We use the to force the suffix, if | |
4988 | any, to use square brackets, and to be in upper case. */ | |
4989 | ||
4990 | char * | |
98027b10 | 4991 | ppc_canonicalize_symbol_name (char *name) |
252b5132 RH |
4992 | { |
4993 | char *s; | |
4994 | ||
4995 | if (ppc_stab_symbol) | |
4996 | return name; | |
4997 | ||
4998 | for (s = name; *s != '\0' && *s != '{' && *s != '['; s++) | |
4999 | ; | |
5000 | if (*s != '\0') | |
5001 | { | |
5002 | char brac; | |
5003 | ||
5004 | if (*s == '[') | |
5005 | brac = ']'; | |
5006 | else | |
5007 | { | |
5008 | *s = '['; | |
5009 | brac = '}'; | |
5010 | } | |
5011 | ||
5012 | for (s++; *s != '\0' && *s != brac; s++) | |
3882b010 | 5013 | *s = TOUPPER (*s); |
252b5132 RH |
5014 | |
5015 | if (*s == '\0' || s[1] != '\0') | |
5016 | as_bad (_("bad symbol suffix")); | |
5017 | ||
5018 | *s = ']'; | |
5019 | } | |
5020 | ||
5021 | return name; | |
5022 | } | |
5023 | ||
5024 | /* Set the class of a symbol based on the suffix, if any. This is | |
5025 | called whenever a new symbol is created. */ | |
5026 | ||
5027 | void | |
98027b10 | 5028 | ppc_symbol_new_hook (symbolS *sym) |
252b5132 | 5029 | { |
809ffe0d | 5030 | struct ppc_tc_sy *tc; |
252b5132 RH |
5031 | const char *s; |
5032 | ||
809ffe0d ILT |
5033 | tc = symbol_get_tc (sym); |
5034 | tc->next = NULL; | |
5035 | tc->output = 0; | |
96d56e9f | 5036 | tc->symbol_class = -1; |
809ffe0d ILT |
5037 | tc->real_name = NULL; |
5038 | tc->subseg = 0; | |
5039 | tc->align = 0; | |
5040 | tc->size = NULL; | |
5041 | tc->within = NULL; | |
252b5132 RH |
5042 | |
5043 | if (ppc_stab_symbol) | |
5044 | return; | |
5045 | ||
5046 | s = strchr (S_GET_NAME (sym), '['); | |
5047 | if (s == (const char *) NULL) | |
5048 | { | |
5049 | /* There is no suffix. */ | |
5050 | return; | |
5051 | } | |
5052 | ||
5053 | ++s; | |
5054 | ||
5055 | switch (s[0]) | |
5056 | { | |
5057 | case 'B': | |
5058 | if (strcmp (s, "BS]") == 0) | |
96d56e9f | 5059 | tc->symbol_class = XMC_BS; |
252b5132 RH |
5060 | break; |
5061 | case 'D': | |
5062 | if (strcmp (s, "DB]") == 0) | |
96d56e9f | 5063 | tc->symbol_class = XMC_DB; |
252b5132 | 5064 | else if (strcmp (s, "DS]") == 0) |
96d56e9f | 5065 | tc->symbol_class = XMC_DS; |
252b5132 RH |
5066 | break; |
5067 | case 'G': | |
5068 | if (strcmp (s, "GL]") == 0) | |
96d56e9f | 5069 | tc->symbol_class = XMC_GL; |
252b5132 RH |
5070 | break; |
5071 | case 'P': | |
5072 | if (strcmp (s, "PR]") == 0) | |
96d56e9f | 5073 | tc->symbol_class = XMC_PR; |
252b5132 RH |
5074 | break; |
5075 | case 'R': | |
5076 | if (strcmp (s, "RO]") == 0) | |
96d56e9f | 5077 | tc->symbol_class = XMC_RO; |
252b5132 | 5078 | else if (strcmp (s, "RW]") == 0) |
96d56e9f | 5079 | tc->symbol_class = XMC_RW; |
252b5132 RH |
5080 | break; |
5081 | case 'S': | |
5082 | if (strcmp (s, "SV]") == 0) | |
96d56e9f | 5083 | tc->symbol_class = XMC_SV; |
252b5132 RH |
5084 | break; |
5085 | case 'T': | |
5086 | if (strcmp (s, "TC]") == 0) | |
96d56e9f | 5087 | tc->symbol_class = XMC_TC; |
252b5132 | 5088 | else if (strcmp (s, "TI]") == 0) |
96d56e9f | 5089 | tc->symbol_class = XMC_TI; |
252b5132 | 5090 | else if (strcmp (s, "TB]") == 0) |
96d56e9f | 5091 | tc->symbol_class = XMC_TB; |
252b5132 | 5092 | else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0) |
96d56e9f | 5093 | tc->symbol_class = XMC_TC0; |
252b5132 RH |
5094 | break; |
5095 | case 'U': | |
5096 | if (strcmp (s, "UA]") == 0) | |
96d56e9f | 5097 | tc->symbol_class = XMC_UA; |
252b5132 | 5098 | else if (strcmp (s, "UC]") == 0) |
96d56e9f | 5099 | tc->symbol_class = XMC_UC; |
252b5132 RH |
5100 | break; |
5101 | case 'X': | |
5102 | if (strcmp (s, "XO]") == 0) | |
96d56e9f | 5103 | tc->symbol_class = XMC_XO; |
252b5132 RH |
5104 | break; |
5105 | } | |
5106 | ||
96d56e9f | 5107 | if (tc->symbol_class == -1) |
252b5132 RH |
5108 | as_bad (_("Unrecognized symbol suffix")); |
5109 | } | |
5110 | ||
5111 | /* Set the class of a label based on where it is defined. This | |
5112 | handles symbols without suffixes. Also, move the symbol so that it | |
5113 | follows the csect symbol. */ | |
5114 | ||
5115 | void | |
98027b10 | 5116 | ppc_frob_label (symbolS *sym) |
252b5132 RH |
5117 | { |
5118 | if (ppc_current_csect != (symbolS *) NULL) | |
5119 | { | |
96d56e9f NC |
5120 | if (symbol_get_tc (sym)->symbol_class == -1) |
5121 | symbol_get_tc (sym)->symbol_class = symbol_get_tc (ppc_current_csect)->symbol_class; | |
252b5132 RH |
5122 | |
5123 | symbol_remove (sym, &symbol_rootP, &symbol_lastP); | |
809ffe0d ILT |
5124 | symbol_append (sym, symbol_get_tc (ppc_current_csect)->within, |
5125 | &symbol_rootP, &symbol_lastP); | |
5126 | symbol_get_tc (ppc_current_csect)->within = sym; | |
252b5132 | 5127 | } |
07a53e5c RH |
5128 | |
5129 | #ifdef OBJ_ELF | |
5130 | dwarf2_emit_label (sym); | |
5131 | #endif | |
252b5132 RH |
5132 | } |
5133 | ||
5134 | /* This variable is set by ppc_frob_symbol if any absolute symbols are | |
5135 | seen. It tells ppc_adjust_symtab whether it needs to look through | |
5136 | the symbols. */ | |
5137 | ||
b34976b6 | 5138 | static bfd_boolean ppc_saw_abs; |
252b5132 RH |
5139 | |
5140 | /* Change the name of a symbol just before writing it out. Set the | |
5141 | real name if the .rename pseudo-op was used. Otherwise, remove any | |
5142 | class suffix. Return 1 if the symbol should not be included in the | |
5143 | symbol table. */ | |
5144 | ||
5145 | int | |
98027b10 | 5146 | ppc_frob_symbol (symbolS *sym) |
252b5132 RH |
5147 | { |
5148 | static symbolS *ppc_last_function; | |
5149 | static symbolS *set_end; | |
5150 | ||
5151 | /* Discard symbols that should not be included in the output symbol | |
5152 | table. */ | |
809ffe0d ILT |
5153 | if (! symbol_used_in_reloc_p (sym) |
5154 | && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0 | |
670ec21d | 5155 | || (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym)) |
809ffe0d | 5156 | && ! symbol_get_tc (sym)->output |
252b5132 RH |
5157 | && S_GET_STORAGE_CLASS (sym) != C_FILE))) |
5158 | return 1; | |
5159 | ||
a161fe53 AM |
5160 | /* This one will disappear anyway. Don't make a csect sym for it. */ |
5161 | if (sym == abs_section_sym) | |
5162 | return 1; | |
5163 | ||
809ffe0d ILT |
5164 | if (symbol_get_tc (sym)->real_name != (char *) NULL) |
5165 | S_SET_NAME (sym, symbol_get_tc (sym)->real_name); | |
252b5132 RH |
5166 | else |
5167 | { | |
5168 | const char *name; | |
5169 | const char *s; | |
5170 | ||
5171 | name = S_GET_NAME (sym); | |
5172 | s = strchr (name, '['); | |
5173 | if (s != (char *) NULL) | |
5174 | { | |
5175 | unsigned int len; | |
5176 | char *snew; | |
5177 | ||
5178 | len = s - name; | |
5179 | snew = xmalloc (len + 1); | |
5180 | memcpy (snew, name, len); | |
5181 | snew[len] = '\0'; | |
5182 | ||
5183 | S_SET_NAME (sym, snew); | |
5184 | } | |
5185 | } | |
5186 | ||
5187 | if (set_end != (symbolS *) NULL) | |
5188 | { | |
5189 | SA_SET_SYM_ENDNDX (set_end, sym); | |
5190 | set_end = NULL; | |
5191 | } | |
5192 | ||
5193 | if (SF_GET_FUNCTION (sym)) | |
5194 | { | |
5195 | if (ppc_last_function != (symbolS *) NULL) | |
5196 | as_bad (_("two .function pseudo-ops with no intervening .ef")); | |
5197 | ppc_last_function = sym; | |
809ffe0d | 5198 | if (symbol_get_tc (sym)->size != (symbolS *) NULL) |
252b5132 | 5199 | { |
6386f3a7 | 5200 | resolve_symbol_value (symbol_get_tc (sym)->size); |
809ffe0d ILT |
5201 | SA_SET_SYM_FSIZE (sym, |
5202 | (long) S_GET_VALUE (symbol_get_tc (sym)->size)); | |
252b5132 RH |
5203 | } |
5204 | } | |
5205 | else if (S_GET_STORAGE_CLASS (sym) == C_FCN | |
5206 | && strcmp (S_GET_NAME (sym), ".ef") == 0) | |
5207 | { | |
5208 | if (ppc_last_function == (symbolS *) NULL) | |
5209 | as_bad (_(".ef with no preceding .function")); | |
5210 | else | |
5211 | { | |
5212 | set_end = ppc_last_function; | |
5213 | ppc_last_function = NULL; | |
5214 | ||
5215 | /* We don't have a C_EFCN symbol, but we need to force the | |
5216 | COFF backend to believe that it has seen one. */ | |
5217 | coff_last_function = NULL; | |
5218 | } | |
5219 | } | |
5220 | ||
670ec21d | 5221 | if (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym)) |
809ffe0d | 5222 | && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0 |
252b5132 RH |
5223 | && S_GET_STORAGE_CLASS (sym) != C_FILE |
5224 | && S_GET_STORAGE_CLASS (sym) != C_FCN | |
5225 | && S_GET_STORAGE_CLASS (sym) != C_BLOCK | |
5226 | && S_GET_STORAGE_CLASS (sym) != C_BSTAT | |
5227 | && S_GET_STORAGE_CLASS (sym) != C_ESTAT | |
5228 | && S_GET_STORAGE_CLASS (sym) != C_BINCL | |
5229 | && S_GET_STORAGE_CLASS (sym) != C_EINCL | |
5230 | && S_GET_SEGMENT (sym) != ppc_coff_debug_section) | |
5231 | S_SET_STORAGE_CLASS (sym, C_HIDEXT); | |
5232 | ||
5233 | if (S_GET_STORAGE_CLASS (sym) == C_EXT | |
8602d4fe | 5234 | || S_GET_STORAGE_CLASS (sym) == C_AIX_WEAKEXT |
252b5132 RH |
5235 | || S_GET_STORAGE_CLASS (sym) == C_HIDEXT) |
5236 | { | |
5237 | int i; | |
5238 | union internal_auxent *a; | |
5239 | ||
5240 | /* Create a csect aux. */ | |
5241 | i = S_GET_NUMBER_AUXILIARY (sym); | |
5242 | S_SET_NUMBER_AUXILIARY (sym, i + 1); | |
809ffe0d | 5243 | a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent; |
96d56e9f | 5244 | if (symbol_get_tc (sym)->symbol_class == XMC_TC0) |
252b5132 RH |
5245 | { |
5246 | /* This is the TOC table. */ | |
5247 | know (strcmp (S_GET_NAME (sym), "TOC") == 0); | |
5248 | a->x_csect.x_scnlen.l = 0; | |
5249 | a->x_csect.x_smtyp = (2 << 3) | XTY_SD; | |
5250 | } | |
809ffe0d | 5251 | else if (symbol_get_tc (sym)->subseg != 0) |
252b5132 RH |
5252 | { |
5253 | /* This is a csect symbol. x_scnlen is the size of the | |
5254 | csect. */ | |
809ffe0d | 5255 | if (symbol_get_tc (sym)->next == (symbolS *) NULL) |
252b5132 RH |
5256 | a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput, |
5257 | S_GET_SEGMENT (sym)) | |
5258 | - S_GET_VALUE (sym)); | |
5259 | else | |
5260 | { | |
6386f3a7 | 5261 | resolve_symbol_value (symbol_get_tc (sym)->next); |
809ffe0d | 5262 | a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next) |
252b5132 RH |
5263 | - S_GET_VALUE (sym)); |
5264 | } | |
809ffe0d | 5265 | a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD; |
252b5132 RH |
5266 | } |
5267 | else if (S_GET_SEGMENT (sym) == bss_section) | |
5268 | { | |
5269 | /* This is a common symbol. */ | |
809ffe0d ILT |
5270 | a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset; |
5271 | a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM; | |
252b5132 | 5272 | if (S_IS_EXTERNAL (sym)) |
96d56e9f | 5273 | symbol_get_tc (sym)->symbol_class = XMC_RW; |
252b5132 | 5274 | else |
96d56e9f | 5275 | symbol_get_tc (sym)->symbol_class = XMC_BS; |
252b5132 RH |
5276 | } |
5277 | else if (S_GET_SEGMENT (sym) == absolute_section) | |
5278 | { | |
5279 | /* This is an absolute symbol. The csect will be created by | |
99a814a1 | 5280 | ppc_adjust_symtab. */ |
b34976b6 | 5281 | ppc_saw_abs = TRUE; |
252b5132 | 5282 | a->x_csect.x_smtyp = XTY_LD; |
96d56e9f NC |
5283 | if (symbol_get_tc (sym)->symbol_class == -1) |
5284 | symbol_get_tc (sym)->symbol_class = XMC_XO; | |
252b5132 RH |
5285 | } |
5286 | else if (! S_IS_DEFINED (sym)) | |
5287 | { | |
5288 | /* This is an external symbol. */ | |
5289 | a->x_csect.x_scnlen.l = 0; | |
5290 | a->x_csect.x_smtyp = XTY_ER; | |
5291 | } | |
96d56e9f | 5292 | else if (symbol_get_tc (sym)->symbol_class == XMC_TC) |
252b5132 RH |
5293 | { |
5294 | symbolS *next; | |
5295 | ||
5296 | /* This is a TOC definition. x_scnlen is the size of the | |
5297 | TOC entry. */ | |
5298 | next = symbol_next (sym); | |
96d56e9f | 5299 | while (symbol_get_tc (next)->symbol_class == XMC_TC0) |
252b5132 RH |
5300 | next = symbol_next (next); |
5301 | if (next == (symbolS *) NULL | |
96d56e9f | 5302 | || symbol_get_tc (next)->symbol_class != XMC_TC) |
252b5132 RH |
5303 | { |
5304 | if (ppc_after_toc_frag == (fragS *) NULL) | |
5305 | a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput, | |
5306 | data_section) | |
5307 | - S_GET_VALUE (sym)); | |
5308 | else | |
5309 | a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address | |
5310 | - S_GET_VALUE (sym)); | |
5311 | } | |
5312 | else | |
5313 | { | |
6386f3a7 | 5314 | resolve_symbol_value (next); |
252b5132 RH |
5315 | a->x_csect.x_scnlen.l = (S_GET_VALUE (next) |
5316 | - S_GET_VALUE (sym)); | |
5317 | } | |
5318 | a->x_csect.x_smtyp = (2 << 3) | XTY_SD; | |
5319 | } | |
5320 | else | |
5321 | { | |
5322 | symbolS *csect; | |
5323 | ||
5324 | /* This is a normal symbol definition. x_scnlen is the | |
5325 | symbol index of the containing csect. */ | |
5326 | if (S_GET_SEGMENT (sym) == text_section) | |
5327 | csect = ppc_text_csects; | |
5328 | else if (S_GET_SEGMENT (sym) == data_section) | |
5329 | csect = ppc_data_csects; | |
5330 | else | |
5331 | abort (); | |
5332 | ||
5333 | /* Skip the initial dummy symbol. */ | |
809ffe0d | 5334 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
5335 | |
5336 | if (csect == (symbolS *) NULL) | |
5337 | { | |
5338 | as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym)); | |
5339 | a->x_csect.x_scnlen.l = 0; | |
5340 | } | |
5341 | else | |
5342 | { | |
809ffe0d | 5343 | while (symbol_get_tc (csect)->next != (symbolS *) NULL) |
252b5132 | 5344 | { |
6386f3a7 | 5345 | resolve_symbol_value (symbol_get_tc (csect)->next); |
809ffe0d ILT |
5346 | if (S_GET_VALUE (symbol_get_tc (csect)->next) |
5347 | > S_GET_VALUE (sym)) | |
252b5132 | 5348 | break; |
809ffe0d | 5349 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
5350 | } |
5351 | ||
809ffe0d ILT |
5352 | a->x_csect.x_scnlen.p = |
5353 | coffsymbol (symbol_get_bfdsym (csect))->native; | |
5354 | coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen = | |
5355 | 1; | |
252b5132 RH |
5356 | } |
5357 | a->x_csect.x_smtyp = XTY_LD; | |
5358 | } | |
81d4177b | 5359 | |
252b5132 RH |
5360 | a->x_csect.x_parmhash = 0; |
5361 | a->x_csect.x_snhash = 0; | |
96d56e9f | 5362 | if (symbol_get_tc (sym)->symbol_class == -1) |
252b5132 RH |
5363 | a->x_csect.x_smclas = XMC_PR; |
5364 | else | |
96d56e9f | 5365 | a->x_csect.x_smclas = symbol_get_tc (sym)->symbol_class; |
252b5132 RH |
5366 | a->x_csect.x_stab = 0; |
5367 | a->x_csect.x_snstab = 0; | |
5368 | ||
5369 | /* Don't let the COFF backend resort these symbols. */ | |
809ffe0d | 5370 | symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END; |
252b5132 RH |
5371 | } |
5372 | else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT) | |
5373 | { | |
5374 | /* We want the value to be the symbol index of the referenced | |
5375 | csect symbol. BFD will do that for us if we set the right | |
5376 | flags. */ | |
b782de16 AM |
5377 | asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within); |
5378 | combined_entry_type *c = coffsymbol (bsym)->native; | |
5379 | ||
5380 | S_SET_VALUE (sym, (valueT) (size_t) c); | |
809ffe0d | 5381 | coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1; |
252b5132 RH |
5382 | } |
5383 | else if (S_GET_STORAGE_CLASS (sym) == C_STSYM) | |
5384 | { | |
5385 | symbolS *block; | |
5386 | symbolS *csect; | |
5387 | ||
5388 | /* The value is the offset from the enclosing csect. */ | |
809ffe0d ILT |
5389 | block = symbol_get_tc (sym)->within; |
5390 | csect = symbol_get_tc (block)->within; | |
6386f3a7 | 5391 | resolve_symbol_value (csect); |
252b5132 RH |
5392 | S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect)); |
5393 | } | |
5394 | else if (S_GET_STORAGE_CLASS (sym) == C_BINCL | |
5395 | || S_GET_STORAGE_CLASS (sym) == C_EINCL) | |
5396 | { | |
5397 | /* We want the value to be a file offset into the line numbers. | |
99a814a1 AM |
5398 | BFD will do that for us if we set the right flags. We have |
5399 | already set the value correctly. */ | |
809ffe0d | 5400 | coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1; |
252b5132 RH |
5401 | } |
5402 | ||
5403 | return 0; | |
5404 | } | |
5405 | ||
5406 | /* Adjust the symbol table. This creates csect symbols for all | |
5407 | absolute symbols. */ | |
5408 | ||
5409 | void | |
98027b10 | 5410 | ppc_adjust_symtab (void) |
252b5132 RH |
5411 | { |
5412 | symbolS *sym; | |
5413 | ||
5414 | if (! ppc_saw_abs) | |
5415 | return; | |
5416 | ||
5417 | for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym)) | |
5418 | { | |
5419 | symbolS *csect; | |
5420 | int i; | |
5421 | union internal_auxent *a; | |
5422 | ||
5423 | if (S_GET_SEGMENT (sym) != absolute_section) | |
5424 | continue; | |
5425 | ||
5426 | csect = symbol_create (".abs[XO]", absolute_section, | |
5427 | S_GET_VALUE (sym), &zero_address_frag); | |
809ffe0d | 5428 | symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym); |
252b5132 RH |
5429 | S_SET_STORAGE_CLASS (csect, C_HIDEXT); |
5430 | i = S_GET_NUMBER_AUXILIARY (csect); | |
5431 | S_SET_NUMBER_AUXILIARY (csect, i + 1); | |
809ffe0d | 5432 | a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent; |
252b5132 RH |
5433 | a->x_csect.x_scnlen.l = 0; |
5434 | a->x_csect.x_smtyp = XTY_SD; | |
5435 | a->x_csect.x_parmhash = 0; | |
5436 | a->x_csect.x_snhash = 0; | |
5437 | a->x_csect.x_smclas = XMC_XO; | |
5438 | a->x_csect.x_stab = 0; | |
5439 | a->x_csect.x_snstab = 0; | |
5440 | ||
5441 | symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP); | |
5442 | ||
5443 | i = S_GET_NUMBER_AUXILIARY (sym); | |
809ffe0d ILT |
5444 | a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent; |
5445 | a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native; | |
5446 | coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1; | |
252b5132 RH |
5447 | } |
5448 | ||
b34976b6 | 5449 | ppc_saw_abs = FALSE; |
252b5132 RH |
5450 | } |
5451 | ||
5452 | /* Set the VMA for a section. This is called on all the sections in | |
5453 | turn. */ | |
5454 | ||
5455 | void | |
98027b10 | 5456 | ppc_frob_section (asection *sec) |
252b5132 | 5457 | { |
931e13a6 | 5458 | static bfd_vma vma = 0; |
252b5132 | 5459 | |
931e13a6 | 5460 | vma = md_section_align (sec, vma); |
252b5132 RH |
5461 | bfd_set_section_vma (stdoutput, sec, vma); |
5462 | vma += bfd_section_size (stdoutput, sec); | |
5463 | } | |
5464 | ||
5465 | #endif /* OBJ_XCOFF */ | |
5466 | \f | |
252b5132 | 5467 | char * |
98027b10 | 5468 | md_atof (int type, char *litp, int *sizep) |
252b5132 | 5469 | { |
499ac353 | 5470 | return ieee_md_atof (type, litp, sizep, target_big_endian); |
252b5132 RH |
5471 | } |
5472 | ||
5473 | /* Write a value out to the object file, using the appropriate | |
5474 | endianness. */ | |
5475 | ||
5476 | void | |
98027b10 | 5477 | md_number_to_chars (char *buf, valueT val, int n) |
252b5132 RH |
5478 | { |
5479 | if (target_big_endian) | |
5480 | number_to_chars_bigendian (buf, val, n); | |
5481 | else | |
5482 | number_to_chars_littleendian (buf, val, n); | |
5483 | } | |
5484 | ||
5485 | /* Align a section (I don't know why this is machine dependent). */ | |
5486 | ||
5487 | valueT | |
3aeeedbb | 5488 | md_section_align (asection *seg ATTRIBUTE_UNUSED, valueT addr) |
252b5132 | 5489 | { |
3aeeedbb AM |
5490 | #ifdef OBJ_ELF |
5491 | return addr; | |
5492 | #else | |
252b5132 RH |
5493 | int align = bfd_get_section_alignment (stdoutput, seg); |
5494 | ||
5495 | return ((addr + (1 << align) - 1) & (-1 << align)); | |
3aeeedbb | 5496 | #endif |
252b5132 RH |
5497 | } |
5498 | ||
5499 | /* We don't have any form of relaxing. */ | |
5500 | ||
5501 | int | |
98027b10 AM |
5502 | md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED, |
5503 | asection *seg ATTRIBUTE_UNUSED) | |
252b5132 RH |
5504 | { |
5505 | abort (); | |
5506 | return 0; | |
5507 | } | |
5508 | ||
5509 | /* Convert a machine dependent frag. We never generate these. */ | |
5510 | ||
5511 | void | |
98027b10 AM |
5512 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, |
5513 | asection *sec ATTRIBUTE_UNUSED, | |
5514 | fragS *fragp ATTRIBUTE_UNUSED) | |
252b5132 RH |
5515 | { |
5516 | abort (); | |
5517 | } | |
5518 | ||
5519 | /* We have no need to default values of symbols. */ | |
5520 | ||
252b5132 | 5521 | symbolS * |
98027b10 | 5522 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
252b5132 RH |
5523 | { |
5524 | return 0; | |
5525 | } | |
5526 | \f | |
5527 | /* Functions concerning relocs. */ | |
5528 | ||
5529 | /* The location from which a PC relative jump should be calculated, | |
5530 | given a PC relative reloc. */ | |
5531 | ||
5532 | long | |
98027b10 | 5533 | md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED) |
252b5132 RH |
5534 | { |
5535 | return fixp->fx_frag->fr_address + fixp->fx_where; | |
5536 | } | |
5537 | ||
5538 | #ifdef OBJ_XCOFF | |
5539 | ||
5540 | /* This is called to see whether a fixup should be adjusted to use a | |
5541 | section symbol. We take the opportunity to change a fixup against | |
5542 | a symbol in the TOC subsegment into a reloc against the | |
5543 | corresponding .tc symbol. */ | |
5544 | ||
5545 | int | |
98027b10 | 5546 | ppc_fix_adjustable (fixS *fix) |
252b5132 | 5547 | { |
b782de16 AM |
5548 | valueT val = resolve_symbol_value (fix->fx_addsy); |
5549 | segT symseg = S_GET_SEGMENT (fix->fx_addsy); | |
5550 | TC_SYMFIELD_TYPE *tc; | |
5551 | ||
5552 | if (symseg == absolute_section) | |
5553 | return 0; | |
252b5132 | 5554 | |
252b5132 | 5555 | if (ppc_toc_csect != (symbolS *) NULL |
252b5132 | 5556 | && fix->fx_addsy != ppc_toc_csect |
b782de16 | 5557 | && symseg == data_section |
252b5132 RH |
5558 | && val >= ppc_toc_frag->fr_address |
5559 | && (ppc_after_toc_frag == (fragS *) NULL | |
5560 | || val < ppc_after_toc_frag->fr_address)) | |
5561 | { | |
5562 | symbolS *sy; | |
5563 | ||
5564 | for (sy = symbol_next (ppc_toc_csect); | |
5565 | sy != (symbolS *) NULL; | |
5566 | sy = symbol_next (sy)) | |
5567 | { | |
b782de16 AM |
5568 | TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy); |
5569 | ||
96d56e9f | 5570 | if (sy_tc->symbol_class == XMC_TC0) |
252b5132 | 5571 | continue; |
96d56e9f | 5572 | if (sy_tc->symbol_class != XMC_TC) |
252b5132 | 5573 | break; |
b782de16 | 5574 | if (val == resolve_symbol_value (sy)) |
252b5132 RH |
5575 | { |
5576 | fix->fx_addsy = sy; | |
5577 | fix->fx_addnumber = val - ppc_toc_frag->fr_address; | |
5578 | return 0; | |
5579 | } | |
5580 | } | |
5581 | ||
5582 | as_bad_where (fix->fx_file, fix->fx_line, | |
5583 | _("symbol in .toc does not match any .tc")); | |
5584 | } | |
5585 | ||
5586 | /* Possibly adjust the reloc to be against the csect. */ | |
b782de16 AM |
5587 | tc = symbol_get_tc (fix->fx_addsy); |
5588 | if (tc->subseg == 0 | |
96d56e9f NC |
5589 | && tc->symbol_class != XMC_TC0 |
5590 | && tc->symbol_class != XMC_TC | |
b782de16 | 5591 | && symseg != bss_section |
252b5132 | 5592 | /* Don't adjust if this is a reloc in the toc section. */ |
b782de16 | 5593 | && (symseg != data_section |
252b5132 RH |
5594 | || ppc_toc_csect == NULL |
5595 | || val < ppc_toc_frag->fr_address | |
5596 | || (ppc_after_toc_frag != NULL | |
5597 | && val >= ppc_after_toc_frag->fr_address))) | |
5598 | { | |
5599 | symbolS *csect; | |
b782de16 | 5600 | symbolS *next_csect; |
252b5132 | 5601 | |
b782de16 | 5602 | if (symseg == text_section) |
252b5132 | 5603 | csect = ppc_text_csects; |
b782de16 | 5604 | else if (symseg == data_section) |
252b5132 RH |
5605 | csect = ppc_data_csects; |
5606 | else | |
5607 | abort (); | |
5608 | ||
5609 | /* Skip the initial dummy symbol. */ | |
809ffe0d | 5610 | csect = symbol_get_tc (csect)->next; |
252b5132 RH |
5611 | |
5612 | if (csect != (symbolS *) NULL) | |
5613 | { | |
b782de16 AM |
5614 | while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL |
5615 | && (symbol_get_frag (next_csect)->fr_address <= val)) | |
252b5132 RH |
5616 | { |
5617 | /* If the csect address equals the symbol value, then we | |
99a814a1 AM |
5618 | have to look through the full symbol table to see |
5619 | whether this is the csect we want. Note that we will | |
5620 | only get here if the csect has zero length. */ | |
b782de16 AM |
5621 | if (symbol_get_frag (csect)->fr_address == val |
5622 | && S_GET_VALUE (csect) == val) | |
252b5132 RH |
5623 | { |
5624 | symbolS *scan; | |
5625 | ||
809ffe0d | 5626 | for (scan = symbol_next (csect); |
252b5132 | 5627 | scan != NULL; |
809ffe0d | 5628 | scan = symbol_next (scan)) |
252b5132 | 5629 | { |
809ffe0d | 5630 | if (symbol_get_tc (scan)->subseg != 0) |
252b5132 RH |
5631 | break; |
5632 | if (scan == fix->fx_addsy) | |
5633 | break; | |
5634 | } | |
5635 | ||
5636 | /* If we found the symbol before the next csect | |
99a814a1 | 5637 | symbol, then this is the csect we want. */ |
252b5132 RH |
5638 | if (scan == fix->fx_addsy) |
5639 | break; | |
5640 | } | |
5641 | ||
b782de16 | 5642 | csect = next_csect; |
252b5132 RH |
5643 | } |
5644 | ||
b782de16 | 5645 | fix->fx_offset += val - symbol_get_frag (csect)->fr_address; |
252b5132 RH |
5646 | fix->fx_addsy = csect; |
5647 | } | |
b782de16 | 5648 | return 0; |
252b5132 RH |
5649 | } |
5650 | ||
5651 | /* Adjust a reloc against a .lcomm symbol to be against the base | |
5652 | .lcomm. */ | |
b782de16 | 5653 | if (symseg == bss_section |
252b5132 RH |
5654 | && ! S_IS_EXTERNAL (fix->fx_addsy)) |
5655 | { | |
b782de16 AM |
5656 | symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol; |
5657 | ||
5658 | fix->fx_offset += val - resolve_symbol_value (sy); | |
5659 | fix->fx_addsy = sy; | |
252b5132 RH |
5660 | } |
5661 | ||
5662 | return 0; | |
5663 | } | |
5664 | ||
5665 | /* A reloc from one csect to another must be kept. The assembler | |
5666 | will, of course, keep relocs between sections, and it will keep | |
5667 | absolute relocs, but we need to force it to keep PC relative relocs | |
5668 | between two csects in the same section. */ | |
5669 | ||
5670 | int | |
98027b10 | 5671 | ppc_force_relocation (fixS *fix) |
252b5132 RH |
5672 | { |
5673 | /* At this point fix->fx_addsy should already have been converted to | |
5674 | a csect symbol. If the csect does not include the fragment, then | |
5675 | we need to force the relocation. */ | |
5676 | if (fix->fx_pcrel | |
5677 | && fix->fx_addsy != NULL | |
809ffe0d ILT |
5678 | && symbol_get_tc (fix->fx_addsy)->subseg != 0 |
5679 | && ((symbol_get_frag (fix->fx_addsy)->fr_address | |
5680 | > fix->fx_frag->fr_address) | |
5681 | || (symbol_get_tc (fix->fx_addsy)->next != NULL | |
5682 | && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address | |
252b5132 RH |
5683 | <= fix->fx_frag->fr_address)))) |
5684 | return 1; | |
5685 | ||
ae6063d4 | 5686 | return generic_force_reloc (fix); |
252b5132 RH |
5687 | } |
5688 | ||
5689 | #endif /* OBJ_XCOFF */ | |
5690 | ||
0baf16f2 | 5691 | #ifdef OBJ_ELF |
a161fe53 AM |
5692 | /* If this function returns non-zero, it guarantees that a relocation |
5693 | will be emitted for a fixup. */ | |
5694 | ||
5695 | int | |
98027b10 | 5696 | ppc_force_relocation (fixS *fix) |
a161fe53 AM |
5697 | { |
5698 | /* Branch prediction relocations must force a relocation, as must | |
5699 | the vtable description relocs. */ | |
5700 | switch (fix->fx_r_type) | |
5701 | { | |
5702 | case BFD_RELOC_PPC_B16_BRTAKEN: | |
5703 | case BFD_RELOC_PPC_B16_BRNTAKEN: | |
5704 | case BFD_RELOC_PPC_BA16_BRTAKEN: | |
5705 | case BFD_RELOC_PPC_BA16_BRNTAKEN: | |
c744ecf2 | 5706 | case BFD_RELOC_24_PLT_PCREL: |
a161fe53 | 5707 | case BFD_RELOC_PPC64_TOC: |
a161fe53 AM |
5708 | return 1; |
5709 | default: | |
5710 | break; | |
5711 | } | |
5712 | ||
cdba85ec AM |
5713 | if (fix->fx_r_type >= BFD_RELOC_PPC_TLS |
5714 | && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA) | |
5715 | return 1; | |
5716 | ||
ae6063d4 | 5717 | return generic_force_reloc (fix); |
a161fe53 AM |
5718 | } |
5719 | ||
0baf16f2 | 5720 | int |
98027b10 | 5721 | ppc_fix_adjustable (fixS *fix) |
252b5132 | 5722 | { |
0baf16f2 AM |
5723 | return (fix->fx_r_type != BFD_RELOC_16_GOTOFF |
5724 | && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF | |
5725 | && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF | |
5726 | && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF | |
cc9edbf3 AM |
5727 | && fix->fx_r_type != BFD_RELOC_PPC64_GOT16_DS |
5728 | && fix->fx_r_type != BFD_RELOC_PPC64_GOT16_LO_DS | |
0baf16f2 AM |
5729 | && fix->fx_r_type != BFD_RELOC_GPREL16 |
5730 | && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT | |
5731 | && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY | |
cdba85ec | 5732 | && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS |
ab1e9ef7 | 5733 | && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)); |
252b5132 | 5734 | } |
0baf16f2 | 5735 | #endif |
252b5132 | 5736 | |
3aeeedbb AM |
5737 | /* Implement HANDLE_ALIGN. This writes the NOP pattern into an |
5738 | rs_align_code frag. */ | |
5739 | ||
5740 | void | |
5741 | ppc_handle_align (struct frag *fragP) | |
5742 | { | |
5743 | valueT count = (fragP->fr_next->fr_address | |
5744 | - (fragP->fr_address + fragP->fr_fix)); | |
5745 | ||
5746 | if (count != 0 && (count & 3) == 0) | |
5747 | { | |
5748 | char *dest = fragP->fr_literal + fragP->fr_fix; | |
5749 | ||
5750 | fragP->fr_var = 4; | |
5751 | md_number_to_chars (dest, 0x60000000, 4); | |
5752 | ||
42240548 PB |
5753 | if ((ppc_cpu & PPC_OPCODE_POWER6) != 0 |
5754 | || (ppc_cpu & PPC_OPCODE_POWER7) != 0) | |
3aeeedbb | 5755 | { |
42240548 PB |
5756 | /* For power6 and power7, we want the last nop to be a group |
5757 | terminating one. Do this by inserting an rs_fill frag immediately | |
5758 | after this one, with its address set to the last nop location. | |
5759 | This will automatically reduce the number of nops in the current | |
5760 | frag by one. */ | |
3aeeedbb AM |
5761 | if (count > 4) |
5762 | { | |
5763 | struct frag *group_nop = xmalloc (SIZEOF_STRUCT_FRAG + 4); | |
5764 | ||
5765 | memcpy (group_nop, fragP, SIZEOF_STRUCT_FRAG); | |
5766 | group_nop->fr_address = group_nop->fr_next->fr_address - 4; | |
5767 | group_nop->fr_fix = 0; | |
5768 | group_nop->fr_offset = 1; | |
5769 | group_nop->fr_type = rs_fill; | |
5770 | fragP->fr_next = group_nop; | |
5771 | dest = group_nop->fr_literal; | |
5772 | } | |
5773 | ||
42240548 PB |
5774 | if ((ppc_cpu & PPC_OPCODE_POWER7) != 0) |
5775 | /* power7 group terminating nop: "ori 2,2,0". */ | |
5776 | md_number_to_chars (dest, 0x60420000, 4); | |
5777 | else | |
5778 | /* power6 group terminating nop: "ori 1,1,0". */ | |
5779 | md_number_to_chars (dest, 0x60210000, 4); | |
3aeeedbb AM |
5780 | } |
5781 | } | |
5782 | } | |
5783 | ||
252b5132 RH |
5784 | /* Apply a fixup to the object code. This is called for all the |
5785 | fixups we generated by the call to fix_new_exp, above. In the call | |
5786 | above we used a reloc code which was the largest legal reloc code | |
5787 | plus the operand index. Here we undo that to recover the operand | |
5788 | index. At this point all symbol values should be fully resolved, | |
5789 | and we attempt to completely resolve the reloc. If we can not do | |
5790 | that, we determine the correct reloc code and put it back in the | |
5791 | fixup. */ | |
5792 | ||
94f592af | 5793 | void |
98027b10 | 5794 | md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) |
252b5132 | 5795 | { |
94f592af | 5796 | valueT value = * valP; |
252b5132 RH |
5797 | |
5798 | #ifdef OBJ_ELF | |
94f592af | 5799 | if (fixP->fx_addsy != NULL) |
252b5132 | 5800 | { |
a161fe53 | 5801 | /* Hack around bfd_install_relocation brain damage. */ |
94f592af NC |
5802 | if (fixP->fx_pcrel) |
5803 | value += fixP->fx_frag->fr_address + fixP->fx_where; | |
252b5132 RH |
5804 | } |
5805 | else | |
94f592af | 5806 | fixP->fx_done = 1; |
252b5132 | 5807 | #else |
a161fe53 | 5808 | /* FIXME FIXME FIXME: The value we are passed in *valP includes |
7be1c489 AM |
5809 | the symbol values. If we are doing this relocation the code in |
5810 | write.c is going to call bfd_install_relocation, which is also | |
5811 | going to use the symbol value. That means that if the reloc is | |
5812 | fully resolved we want to use *valP since bfd_install_relocation is | |
5813 | not being used. | |
9f0eb232 RS |
5814 | However, if the reloc is not fully resolved we do not want to |
5815 | use *valP, and must use fx_offset instead. If the relocation | |
5816 | is PC-relative, we then need to re-apply md_pcrel_from_section | |
5817 | to this new relocation value. */ | |
94f592af NC |
5818 | if (fixP->fx_addsy == (symbolS *) NULL) |
5819 | fixP->fx_done = 1; | |
5820 | ||
252b5132 | 5821 | else |
9f0eb232 RS |
5822 | { |
5823 | value = fixP->fx_offset; | |
5824 | if (fixP->fx_pcrel) | |
5825 | value -= md_pcrel_from_section (fixP, seg); | |
5826 | } | |
a161fe53 AM |
5827 | #endif |
5828 | ||
5829 | if (fixP->fx_subsy != (symbolS *) NULL) | |
252b5132 | 5830 | { |
a161fe53 AM |
5831 | /* We can't actually support subtracting a symbol. */ |
5832 | as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex")); | |
252b5132 | 5833 | } |
252b5132 | 5834 | |
94f592af | 5835 | if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED) |
252b5132 RH |
5836 | { |
5837 | int opindex; | |
5838 | const struct powerpc_operand *operand; | |
5839 | char *where; | |
5840 | unsigned long insn; | |
5841 | ||
94f592af | 5842 | opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED; |
252b5132 RH |
5843 | |
5844 | operand = &powerpc_operands[opindex]; | |
5845 | ||
5846 | #ifdef OBJ_XCOFF | |
0baf16f2 AM |
5847 | /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol |
5848 | does not generate a reloc. It uses the offset of `sym' within its | |
5849 | csect. Other usages, such as `.long sym', generate relocs. This | |
5850 | is the documented behaviour of non-TOC symbols. */ | |
252b5132 | 5851 | if ((operand->flags & PPC_OPERAND_PARENS) != 0 |
b84bf58a | 5852 | && (operand->bitm & 0xfff0) == 0xfff0 |
252b5132 | 5853 | && operand->shift == 0 |
2b3c4602 | 5854 | && (operand->insert == NULL || ppc_obj64) |
94f592af NC |
5855 | && fixP->fx_addsy != NULL |
5856 | && symbol_get_tc (fixP->fx_addsy)->subseg != 0 | |
96d56e9f NC |
5857 | && symbol_get_tc (fixP->fx_addsy)->symbol_class != XMC_TC |
5858 | && symbol_get_tc (fixP->fx_addsy)->symbol_class != XMC_TC0 | |
94f592af | 5859 | && S_GET_SEGMENT (fixP->fx_addsy) != bss_section) |
252b5132 | 5860 | { |
94f592af NC |
5861 | value = fixP->fx_offset; |
5862 | fixP->fx_done = 1; | |
252b5132 RH |
5863 | } |
5864 | #endif | |
5865 | ||
5866 | /* Fetch the instruction, insert the fully resolved operand | |
5867 | value, and stuff the instruction back again. */ | |
94f592af | 5868 | where = fixP->fx_frag->fr_literal + fixP->fx_where; |
252b5132 RH |
5869 | if (target_big_endian) |
5870 | insn = bfd_getb32 ((unsigned char *) where); | |
5871 | else | |
5872 | insn = bfd_getl32 ((unsigned char *) where); | |
5873 | insn = ppc_insert_operand (insn, operand, (offsetT) value, | |
783de163 | 5874 | fixP->tc_fix_data.ppc_cpu, |
94f592af | 5875 | fixP->fx_file, fixP->fx_line); |
252b5132 RH |
5876 | if (target_big_endian) |
5877 | bfd_putb32 ((bfd_vma) insn, (unsigned char *) where); | |
5878 | else | |
5879 | bfd_putl32 ((bfd_vma) insn, (unsigned char *) where); | |
5880 | ||
94f592af NC |
5881 | if (fixP->fx_done) |
5882 | /* Nothing else to do here. */ | |
5883 | return; | |
252b5132 | 5884 | |
9c2799c2 | 5885 | gas_assert (fixP->fx_addsy != NULL); |
0baf16f2 | 5886 | |
252b5132 RH |
5887 | /* Determine a BFD reloc value based on the operand information. |
5888 | We are only prepared to turn a few of the operands into | |
0baf16f2 | 5889 | relocs. */ |
11b37b7b | 5890 | if ((operand->flags & PPC_OPERAND_RELATIVE) != 0 |
b84bf58a | 5891 | && operand->bitm == 0x3fffffc |
11b37b7b | 5892 | && operand->shift == 0) |
94f592af | 5893 | fixP->fx_r_type = BFD_RELOC_PPC_B26; |
11b37b7b | 5894 | else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0 |
b84bf58a | 5895 | && operand->bitm == 0xfffc |
11b37b7b | 5896 | && operand->shift == 0) |
95210096 AM |
5897 | { |
5898 | fixP->fx_r_type = BFD_RELOC_PPC_B16; | |
5899 | #ifdef OBJ_XCOFF | |
5900 | fixP->fx_size = 2; | |
5901 | if (target_big_endian) | |
5902 | fixP->fx_where += 2; | |
5903 | #endif | |
5904 | } | |
11b37b7b | 5905 | else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0 |
b84bf58a | 5906 | && operand->bitm == 0x3fffffc |
11b37b7b | 5907 | && operand->shift == 0) |
94f592af | 5908 | fixP->fx_r_type = BFD_RELOC_PPC_BA26; |
11b37b7b | 5909 | else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0 |
b84bf58a | 5910 | && operand->bitm == 0xfffc |
11b37b7b | 5911 | && operand->shift == 0) |
95210096 AM |
5912 | { |
5913 | fixP->fx_r_type = BFD_RELOC_PPC_BA16; | |
5914 | #ifdef OBJ_XCOFF | |
5915 | fixP->fx_size = 2; | |
5916 | if (target_big_endian) | |
5917 | fixP->fx_where += 2; | |
5918 | #endif | |
5919 | } | |
0baf16f2 | 5920 | #if defined (OBJ_XCOFF) || defined (OBJ_ELF) |
11b37b7b | 5921 | else if ((operand->flags & PPC_OPERAND_PARENS) != 0 |
b84bf58a | 5922 | && (operand->bitm & 0xfff0) == 0xfff0 |
a7fc733f | 5923 | && operand->shift == 0) |
11b37b7b | 5924 | { |
a7fc733f AM |
5925 | if (ppc_is_toc_sym (fixP->fx_addsy)) |
5926 | { | |
5927 | fixP->fx_r_type = BFD_RELOC_PPC_TOC16; | |
0baf16f2 | 5928 | #ifdef OBJ_ELF |
a7fc733f AM |
5929 | if (ppc_obj64 |
5930 | && (operand->flags & PPC_OPERAND_DS) != 0) | |
5931 | fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS; | |
5932 | #endif | |
5933 | } | |
5934 | else | |
5935 | { | |
5936 | fixP->fx_r_type = BFD_RELOC_16; | |
5937 | #ifdef OBJ_ELF | |
5938 | if (ppc_obj64 | |
5939 | && (operand->flags & PPC_OPERAND_DS) != 0) | |
5940 | fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS; | |
0baf16f2 | 5941 | #endif |
a7fc733f | 5942 | } |
94f592af | 5943 | fixP->fx_size = 2; |
11b37b7b | 5944 | if (target_big_endian) |
94f592af | 5945 | fixP->fx_where += 2; |
11b37b7b | 5946 | } |
0baf16f2 | 5947 | #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */ |
11b37b7b | 5948 | else |
252b5132 RH |
5949 | { |
5950 | char *sfile; | |
5951 | unsigned int sline; | |
5952 | ||
5953 | /* Use expr_symbol_where to see if this is an expression | |
0baf16f2 | 5954 | symbol. */ |
94f592af NC |
5955 | if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline)) |
5956 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
252b5132 RH |
5957 | _("unresolved expression that must be resolved")); |
5958 | else | |
94f592af | 5959 | as_bad_where (fixP->fx_file, fixP->fx_line, |
0baf16f2 | 5960 | _("unsupported relocation against %s"), |
94f592af NC |
5961 | S_GET_NAME (fixP->fx_addsy)); |
5962 | fixP->fx_done = 1; | |
5963 | return; | |
252b5132 RH |
5964 | } |
5965 | } | |
5966 | else | |
5967 | { | |
5968 | #ifdef OBJ_ELF | |
94f592af | 5969 | ppc_elf_validate_fix (fixP, seg); |
252b5132 | 5970 | #endif |
94f592af | 5971 | switch (fixP->fx_r_type) |
252b5132 | 5972 | { |
252b5132 | 5973 | case BFD_RELOC_CTOR: |
2b3c4602 | 5974 | if (ppc_obj64) |
9c7977b3 AM |
5975 | goto ctor64; |
5976 | /* fall through */ | |
5977 | ||
0baf16f2 | 5978 | case BFD_RELOC_32: |
94f592af NC |
5979 | if (fixP->fx_pcrel) |
5980 | fixP->fx_r_type = BFD_RELOC_32_PCREL; | |
99a814a1 | 5981 | /* fall through */ |
252b5132 RH |
5982 | |
5983 | case BFD_RELOC_RVA: | |
5984 | case BFD_RELOC_32_PCREL: | |
252b5132 | 5985 | case BFD_RELOC_PPC_EMB_NADDR32: |
94f592af | 5986 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
252b5132 RH |
5987 | value, 4); |
5988 | break; | |
5989 | ||
7f6d05e8 | 5990 | case BFD_RELOC_64: |
9c7977b3 | 5991 | ctor64: |
94f592af NC |
5992 | if (fixP->fx_pcrel) |
5993 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
99a814a1 | 5994 | /* fall through */ |
0baf16f2 | 5995 | |
7f6d05e8 | 5996 | case BFD_RELOC_64_PCREL: |
94f592af | 5997 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
7f6d05e8 | 5998 | value, 8); |
81d4177b | 5999 | break; |
0baf16f2 | 6000 | |
252b5132 RH |
6001 | case BFD_RELOC_GPREL16: |
6002 | case BFD_RELOC_16_GOT_PCREL: | |
6003 | case BFD_RELOC_16_GOTOFF: | |
6004 | case BFD_RELOC_LO16_GOTOFF: | |
6005 | case BFD_RELOC_HI16_GOTOFF: | |
6006 | case BFD_RELOC_HI16_S_GOTOFF: | |
1cfc59d5 | 6007 | case BFD_RELOC_16_BASEREL: |
252b5132 RH |
6008 | case BFD_RELOC_LO16_BASEREL: |
6009 | case BFD_RELOC_HI16_BASEREL: | |
6010 | case BFD_RELOC_HI16_S_BASEREL: | |
6011 | case BFD_RELOC_PPC_EMB_NADDR16: | |
6012 | case BFD_RELOC_PPC_EMB_NADDR16_LO: | |
6013 | case BFD_RELOC_PPC_EMB_NADDR16_HI: | |
6014 | case BFD_RELOC_PPC_EMB_NADDR16_HA: | |
6015 | case BFD_RELOC_PPC_EMB_SDAI16: | |
6016 | case BFD_RELOC_PPC_EMB_SDA2REL: | |
6017 | case BFD_RELOC_PPC_EMB_SDA2I16: | |
6018 | case BFD_RELOC_PPC_EMB_RELSEC16: | |
6019 | case BFD_RELOC_PPC_EMB_RELST_LO: | |
6020 | case BFD_RELOC_PPC_EMB_RELST_HI: | |
6021 | case BFD_RELOC_PPC_EMB_RELST_HA: | |
6022 | case BFD_RELOC_PPC_EMB_RELSDA: | |
6023 | case BFD_RELOC_PPC_TOC16: | |
0baf16f2 | 6024 | #ifdef OBJ_ELF |
0baf16f2 AM |
6025 | case BFD_RELOC_PPC64_TOC16_LO: |
6026 | case BFD_RELOC_PPC64_TOC16_HI: | |
6027 | case BFD_RELOC_PPC64_TOC16_HA: | |
0baf16f2 | 6028 | #endif |
94f592af | 6029 | if (fixP->fx_pcrel) |
252b5132 | 6030 | { |
94f592af NC |
6031 | if (fixP->fx_addsy != NULL) |
6032 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
252b5132 | 6033 | _("cannot emit PC relative %s relocation against %s"), |
94f592af NC |
6034 | bfd_get_reloc_code_name (fixP->fx_r_type), |
6035 | S_GET_NAME (fixP->fx_addsy)); | |
252b5132 | 6036 | else |
94f592af | 6037 | as_bad_where (fixP->fx_file, fixP->fx_line, |
252b5132 | 6038 | _("cannot emit PC relative %s relocation"), |
94f592af | 6039 | bfd_get_reloc_code_name (fixP->fx_r_type)); |
252b5132 RH |
6040 | } |
6041 | ||
94f592af | 6042 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
252b5132 RH |
6043 | value, 2); |
6044 | break; | |
6045 | ||
3c9d25f4 AM |
6046 | case BFD_RELOC_16: |
6047 | if (fixP->fx_pcrel) | |
6048 | fixP->fx_r_type = BFD_RELOC_16_PCREL; | |
6049 | /* fall through */ | |
6050 | ||
6051 | case BFD_RELOC_16_PCREL: | |
6052 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, | |
6053 | value, 2); | |
6054 | break; | |
6055 | ||
6056 | case BFD_RELOC_LO16: | |
6057 | if (fixP->fx_pcrel) | |
6058 | fixP->fx_r_type = BFD_RELOC_LO16_PCREL; | |
6059 | /* fall through */ | |
6060 | ||
6061 | case BFD_RELOC_LO16_PCREL: | |
6062 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, | |
6063 | value, 2); | |
6064 | break; | |
6065 | ||
252b5132 RH |
6066 | /* This case happens when you write, for example, |
6067 | lis %r3,(L1-L2)@ha | |
6068 | where L1 and L2 are defined later. */ | |
6069 | case BFD_RELOC_HI16: | |
94f592af | 6070 | if (fixP->fx_pcrel) |
3c9d25f4 AM |
6071 | fixP->fx_r_type = BFD_RELOC_HI16_PCREL; |
6072 | /* fall through */ | |
6073 | ||
6074 | case BFD_RELOC_HI16_PCREL: | |
94f592af | 6075 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 | 6076 | PPC_HI (value), 2); |
252b5132 | 6077 | break; |
0baf16f2 | 6078 | |
252b5132 | 6079 | case BFD_RELOC_HI16_S: |
94f592af | 6080 | if (fixP->fx_pcrel) |
3c9d25f4 AM |
6081 | fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL; |
6082 | /* fall through */ | |
6083 | ||
6084 | case BFD_RELOC_HI16_S_PCREL: | |
94f592af | 6085 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
6086 | PPC_HA (value), 2); |
6087 | break; | |
6088 | ||
c865e45b RS |
6089 | #ifdef OBJ_XCOFF |
6090 | case BFD_RELOC_NONE: | |
6091 | break; | |
6092 | #endif | |
6093 | ||
0baf16f2 | 6094 | #ifdef OBJ_ELF |
0baf16f2 | 6095 | case BFD_RELOC_PPC64_HIGHER: |
94f592af | 6096 | if (fixP->fx_pcrel) |
0baf16f2 | 6097 | abort (); |
94f592af | 6098 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 | 6099 | PPC_HIGHER (value), 2); |
252b5132 RH |
6100 | break; |
6101 | ||
0baf16f2 | 6102 | case BFD_RELOC_PPC64_HIGHER_S: |
94f592af | 6103 | if (fixP->fx_pcrel) |
0baf16f2 | 6104 | abort (); |
94f592af | 6105 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
6106 | PPC_HIGHERA (value), 2); |
6107 | break; | |
6108 | ||
6109 | case BFD_RELOC_PPC64_HIGHEST: | |
94f592af | 6110 | if (fixP->fx_pcrel) |
0baf16f2 | 6111 | abort (); |
94f592af | 6112 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
6113 | PPC_HIGHEST (value), 2); |
6114 | break; | |
6115 | ||
6116 | case BFD_RELOC_PPC64_HIGHEST_S: | |
94f592af | 6117 | if (fixP->fx_pcrel) |
0baf16f2 | 6118 | abort (); |
94f592af | 6119 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, |
0baf16f2 AM |
6120 | PPC_HIGHESTA (value), 2); |
6121 | break; | |
6122 | ||
6123 | case BFD_RELOC_PPC64_ADDR16_DS: | |
6124 | case BFD_RELOC_PPC64_ADDR16_LO_DS: | |
6125 | case BFD_RELOC_PPC64_GOT16_DS: | |
6126 | case BFD_RELOC_PPC64_GOT16_LO_DS: | |
6127 | case BFD_RELOC_PPC64_PLT16_LO_DS: | |
6128 | case BFD_RELOC_PPC64_SECTOFF_DS: | |
6129 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: | |
6130 | case BFD_RELOC_PPC64_TOC16_DS: | |
6131 | case BFD_RELOC_PPC64_TOC16_LO_DS: | |
6132 | case BFD_RELOC_PPC64_PLTGOT16_DS: | |
6133 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: | |
94f592af | 6134 | if (fixP->fx_pcrel) |
0baf16f2 AM |
6135 | abort (); |
6136 | { | |
2132e3a3 | 6137 | char *where = fixP->fx_frag->fr_literal + fixP->fx_where; |
3d8aea2f | 6138 | unsigned long val, mask; |
0baf16f2 AM |
6139 | |
6140 | if (target_big_endian) | |
adadcc0c | 6141 | val = bfd_getb32 (where - 2); |
0baf16f2 | 6142 | else |
adadcc0c AM |
6143 | val = bfd_getl32 (where); |
6144 | mask = 0xfffc; | |
6145 | /* lq insns reserve the four lsbs. */ | |
6146 | if ((ppc_cpu & PPC_OPCODE_POWER4) != 0 | |
77a6138a | 6147 | && (val & (0x3f << 26)) == (56u << 26)) |
adadcc0c AM |
6148 | mask = 0xfff0; |
6149 | val |= value & mask; | |
0baf16f2 AM |
6150 | if (target_big_endian) |
6151 | bfd_putb16 ((bfd_vma) val, where); | |
6152 | else | |
6153 | bfd_putl16 ((bfd_vma) val, where); | |
6154 | } | |
6155 | break; | |
cdba85ec | 6156 | |
ba0b2174 AM |
6157 | case BFD_RELOC_PPC_B16_BRTAKEN: |
6158 | case BFD_RELOC_PPC_B16_BRNTAKEN: | |
6159 | case BFD_RELOC_PPC_BA16_BRTAKEN: | |
6160 | case BFD_RELOC_PPC_BA16_BRNTAKEN: | |
6161 | break; | |
6162 | ||
cdba85ec | 6163 | case BFD_RELOC_PPC_TLS: |
727fc41e AM |
6164 | case BFD_RELOC_PPC_TLSGD: |
6165 | case BFD_RELOC_PPC_TLSLD: | |
7c1d0959 L |
6166 | break; |
6167 | ||
cdba85ec AM |
6168 | case BFD_RELOC_PPC_DTPMOD: |
6169 | case BFD_RELOC_PPC_TPREL16: | |
6170 | case BFD_RELOC_PPC_TPREL16_LO: | |
6171 | case BFD_RELOC_PPC_TPREL16_HI: | |
6172 | case BFD_RELOC_PPC_TPREL16_HA: | |
6173 | case BFD_RELOC_PPC_TPREL: | |
6174 | case BFD_RELOC_PPC_DTPREL16: | |
6175 | case BFD_RELOC_PPC_DTPREL16_LO: | |
6176 | case BFD_RELOC_PPC_DTPREL16_HI: | |
6177 | case BFD_RELOC_PPC_DTPREL16_HA: | |
6178 | case BFD_RELOC_PPC_DTPREL: | |
6179 | case BFD_RELOC_PPC_GOT_TLSGD16: | |
6180 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: | |
6181 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: | |
6182 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: | |
6183 | case BFD_RELOC_PPC_GOT_TLSLD16: | |
6184 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: | |
6185 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: | |
6186 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: | |
6187 | case BFD_RELOC_PPC_GOT_TPREL16: | |
6188 | case BFD_RELOC_PPC_GOT_TPREL16_LO: | |
6189 | case BFD_RELOC_PPC_GOT_TPREL16_HI: | |
6190 | case BFD_RELOC_PPC_GOT_TPREL16_HA: | |
6191 | case BFD_RELOC_PPC_GOT_DTPREL16: | |
6192 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: | |
6193 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: | |
6194 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: | |
6195 | case BFD_RELOC_PPC64_TPREL16_DS: | |
6196 | case BFD_RELOC_PPC64_TPREL16_LO_DS: | |
6197 | case BFD_RELOC_PPC64_TPREL16_HIGHER: | |
6198 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: | |
6199 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: | |
6200 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: | |
6201 | case BFD_RELOC_PPC64_DTPREL16_DS: | |
6202 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: | |
6203 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: | |
6204 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: | |
6205 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: | |
6206 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: | |
7c1d0959 | 6207 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
cdba85ec | 6208 | break; |
0baf16f2 | 6209 | #endif |
252b5132 | 6210 | /* Because SDA21 modifies the register field, the size is set to 4 |
99a814a1 | 6211 | bytes, rather than 2, so offset it here appropriately. */ |
252b5132 | 6212 | case BFD_RELOC_PPC_EMB_SDA21: |
94f592af | 6213 | if (fixP->fx_pcrel) |
252b5132 RH |
6214 | abort (); |
6215 | ||
94f592af | 6216 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where |
252b5132 RH |
6217 | + ((target_big_endian) ? 2 : 0), |
6218 | value, 2); | |
6219 | break; | |
6220 | ||
6221 | case BFD_RELOC_8: | |
94f592af | 6222 | if (fixP->fx_pcrel) |
31a91399 NC |
6223 | { |
6224 | /* This can occur if there is a bug in the input assembler, eg: | |
b7d7dc63 | 6225 | ".byte <undefined_symbol> - ." */ |
31a91399 NC |
6226 | if (fixP->fx_addsy) |
6227 | as_bad (_("Unable to handle reference to symbol %s"), | |
6228 | S_GET_NAME (fixP->fx_addsy)); | |
6229 | else | |
6230 | as_bad (_("Unable to resolve expression")); | |
6231 | fixP->fx_done = 1; | |
6232 | } | |
6233 | else | |
6234 | md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where, | |
6235 | value, 1); | |
252b5132 RH |
6236 | break; |
6237 | ||
6238 | case BFD_RELOC_24_PLT_PCREL: | |
6239 | case BFD_RELOC_PPC_LOCAL24PC: | |
94f592af | 6240 | if (!fixP->fx_pcrel && !fixP->fx_done) |
252b5132 RH |
6241 | abort (); |
6242 | ||
94f592af | 6243 | if (fixP->fx_done) |
99a814a1 AM |
6244 | { |
6245 | char *where; | |
6246 | unsigned long insn; | |
6247 | ||
6248 | /* Fetch the instruction, insert the fully resolved operand | |
6249 | value, and stuff the instruction back again. */ | |
94f592af | 6250 | where = fixP->fx_frag->fr_literal + fixP->fx_where; |
99a814a1 AM |
6251 | if (target_big_endian) |
6252 | insn = bfd_getb32 ((unsigned char *) where); | |
6253 | else | |
6254 | insn = bfd_getl32 ((unsigned char *) where); | |
6255 | if ((value & 3) != 0) | |
94f592af | 6256 | as_bad_where (fixP->fx_file, fixP->fx_line, |
99a814a1 AM |
6257 | _("must branch to an address a multiple of 4")); |
6258 | if ((offsetT) value < -0x40000000 | |
6259 | || (offsetT) value >= 0x40000000) | |
94f592af | 6260 | as_bad_where (fixP->fx_file, fixP->fx_line, |
99a814a1 AM |
6261 | _("@local or @plt branch destination is too far away, %ld bytes"), |
6262 | (long) value); | |
6263 | insn = insn | (value & 0x03fffffc); | |
6264 | if (target_big_endian) | |
6265 | bfd_putb32 ((bfd_vma) insn, (unsigned char *) where); | |
6266 | else | |
6267 | bfd_putl32 ((bfd_vma) insn, (unsigned char *) where); | |
6268 | } | |
252b5132 RH |
6269 | break; |
6270 | ||
6271 | case BFD_RELOC_VTABLE_INHERIT: | |
94f592af NC |
6272 | fixP->fx_done = 0; |
6273 | if (fixP->fx_addsy | |
6274 | && !S_IS_DEFINED (fixP->fx_addsy) | |
6275 | && !S_IS_WEAK (fixP->fx_addsy)) | |
6276 | S_SET_WEAK (fixP->fx_addsy); | |
252b5132 RH |
6277 | break; |
6278 | ||
6279 | case BFD_RELOC_VTABLE_ENTRY: | |
94f592af | 6280 | fixP->fx_done = 0; |
252b5132 RH |
6281 | break; |
6282 | ||
0baf16f2 | 6283 | #ifdef OBJ_ELF |
0baf16f2 AM |
6284 | /* Generated by reference to `sym@tocbase'. The sym is |
6285 | ignored by the linker. */ | |
6286 | case BFD_RELOC_PPC64_TOC: | |
94f592af | 6287 | fixP->fx_done = 0; |
0baf16f2 | 6288 | break; |
0baf16f2 | 6289 | #endif |
252b5132 | 6290 | default: |
bc805888 | 6291 | fprintf (stderr, |
94f592af | 6292 | _("Gas failure, reloc value %d\n"), fixP->fx_r_type); |
99a814a1 | 6293 | fflush (stderr); |
252b5132 RH |
6294 | abort (); |
6295 | } | |
6296 | } | |
6297 | ||
6298 | #ifdef OBJ_ELF | |
94f592af | 6299 | fixP->fx_addnumber = value; |
4e6935a6 AM |
6300 | |
6301 | /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately | |
6302 | from the section contents. If we are going to be emitting a reloc | |
6303 | then the section contents are immaterial, so don't warn if they | |
6304 | happen to overflow. Leave such warnings to ld. */ | |
6305 | if (!fixP->fx_done) | |
6306 | fixP->fx_no_overflow = 1; | |
252b5132 | 6307 | #else |
94f592af NC |
6308 | if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16) |
6309 | fixP->fx_addnumber = 0; | |
252b5132 RH |
6310 | else |
6311 | { | |
6312 | #ifdef TE_PE | |
94f592af | 6313 | fixP->fx_addnumber = 0; |
252b5132 | 6314 | #else |
8edcbfcd TG |
6315 | /* We want to use the offset within the toc, not the actual VMA |
6316 | of the symbol. */ | |
94f592af | 6317 | fixP->fx_addnumber = |
8edcbfcd TG |
6318 | - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy)) |
6319 | - S_GET_VALUE (ppc_toc_csect); | |
252b5132 RH |
6320 | #endif |
6321 | } | |
6322 | #endif | |
252b5132 RH |
6323 | } |
6324 | ||
6325 | /* Generate a reloc for a fixup. */ | |
6326 | ||
6327 | arelent * | |
98027b10 | 6328 | tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp) |
252b5132 RH |
6329 | { |
6330 | arelent *reloc; | |
6331 | ||
6332 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
6333 | ||
49309057 ILT |
6334 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
6335 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
252b5132 RH |
6336 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
6337 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
6338 | if (reloc->howto == (reloc_howto_type *) NULL) | |
6339 | { | |
6340 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
99a814a1 AM |
6341 | _("reloc %d not supported by object file format"), |
6342 | (int) fixp->fx_r_type); | |
252b5132 RH |
6343 | return NULL; |
6344 | } | |
6345 | reloc->addend = fixp->fx_addnumber; | |
6346 | ||
6347 | return reloc; | |
6348 | } | |
75e21f08 JJ |
6349 | |
6350 | void | |
98027b10 | 6351 | ppc_cfi_frame_initial_instructions (void) |
75e21f08 JJ |
6352 | { |
6353 | cfi_add_CFA_def_cfa (1, 0); | |
6354 | } | |
6355 | ||
6356 | int | |
1df69f4f | 6357 | tc_ppc_regname_to_dw2regnum (char *regname) |
75e21f08 JJ |
6358 | { |
6359 | unsigned int regnum = -1; | |
6360 | unsigned int i; | |
6361 | const char *p; | |
6362 | char *q; | |
6363 | static struct { char *name; int dw2regnum; } regnames[] = | |
6364 | { | |
6365 | { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 }, | |
6366 | { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 }, | |
80f846b6 | 6367 | { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 }, |
75e21f08 JJ |
6368 | { "spe_acc", 111 }, { "spefscr", 112 } |
6369 | }; | |
6370 | ||
6371 | for (i = 0; i < ARRAY_SIZE (regnames); ++i) | |
6372 | if (strcmp (regnames[i].name, regname) == 0) | |
6373 | return regnames[i].dw2regnum; | |
6374 | ||
6375 | if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v') | |
6376 | { | |
6377 | p = regname + 1 + (regname[1] == '.'); | |
6378 | regnum = strtoul (p, &q, 10); | |
6379 | if (p == q || *q || regnum >= 32) | |
6380 | return -1; | |
6381 | if (regname[0] == 'f') | |
b7d7dc63 | 6382 | regnum += 32; |
75e21f08 | 6383 | else if (regname[0] == 'v') |
b7d7dc63 | 6384 | regnum += 77; |
75e21f08 JJ |
6385 | } |
6386 | else if (regname[0] == 'c' && regname[1] == 'r') | |
6387 | { | |
6388 | p = regname + 2 + (regname[2] == '.'); | |
6389 | if (p[0] < '0' || p[0] > '7' || p[1]) | |
b7d7dc63 | 6390 | return -1; |
75e21f08 JJ |
6391 | regnum = p[0] - '0' + 68; |
6392 | } | |
6393 | return regnum; | |
6394 | } |