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1 | /* tc-sparc.c -- Assemble for the SPARC | |
2 | Copyright (C) 1989-2023 Free Software Foundation, Inc. | |
3 | This file is part of GAS, the GNU Assembler. | |
4 | ||
5 | GAS is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 3, or (at your option) | |
8 | any later version. | |
9 | ||
10 | GAS is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public | |
16 | License along with GAS; see the file COPYING. If not, write | |
17 | to the Free Software Foundation, 51 Franklin Street - Fifth Floor, | |
18 | Boston, MA 02110-1301, USA. */ | |
19 | ||
20 | #include "as.h" | |
21 | #include "safe-ctype.h" | |
22 | #include "subsegs.h" | |
23 | ||
24 | #include "opcode/sparc.h" | |
25 | #include "dw2gencfi.h" | |
26 | ||
27 | #include "elf/sparc.h" | |
28 | #include "dwarf2dbg.h" | |
29 | ||
30 | /* Some ancient Sun C compilers would not take such hex constants as | |
31 | unsigned, and would end up sign-extending them to form an offsetT, | |
32 | so use these constants instead. */ | |
33 | #define U0xffffffff ((((unsigned long) 1 << 16) << 16) - 1) | |
34 | #define U0x80000000 ((((unsigned long) 1 << 16) << 15)) | |
35 | ||
36 | static int sparc_ip (char *, const struct sparc_opcode **); | |
37 | static int parse_sparc_asi (char **, const sparc_asi **); | |
38 | static int parse_keyword_arg (int (*) (const char *), char **, int *); | |
39 | static int parse_const_expr_arg (char **, int *); | |
40 | static int get_expression (char *); | |
41 | ||
42 | /* Default architecture. */ | |
43 | /* ??? The default value should be V8, but sparclite support was added | |
44 | by making it the default. GCC now passes -Asparclite, so maybe sometime in | |
45 | the future we can set this to V8. */ | |
46 | #ifndef DEFAULT_ARCH | |
47 | #define DEFAULT_ARCH "sparclite" | |
48 | #endif | |
49 | static const char *default_arch = DEFAULT_ARCH; | |
50 | ||
51 | /* Non-zero if the initial values of `max_architecture' and `sparc_arch_size' | |
52 | have been set. */ | |
53 | static int default_init_p; | |
54 | ||
55 | /* Current architecture. We don't bump up unless necessary. */ | |
56 | static enum sparc_opcode_arch_val current_architecture = SPARC_OPCODE_ARCH_V6; | |
57 | ||
58 | /* The maximum architecture level we can bump up to. | |
59 | In a 32 bit environment, don't allow bumping up to v9 by default. | |
60 | The native assembler works this way. The user is required to pass | |
61 | an explicit argument before we'll create v9 object files. However, if | |
62 | we don't see any v9 insns, a v8plus object file is not created. */ | |
63 | static enum sparc_opcode_arch_val max_architecture; | |
64 | ||
65 | /* Either 32 or 64, selects file format. */ | |
66 | static int sparc_arch_size; | |
67 | /* Initial (default) value, recorded separately in case a user option | |
68 | changes the value before md_show_usage is called. */ | |
69 | static int default_arch_size; | |
70 | ||
71 | /* The currently selected v9 memory model. Currently only used for | |
72 | ELF. */ | |
73 | static enum { MM_TSO, MM_PSO, MM_RMO } sparc_memory_model = MM_RMO; | |
74 | ||
75 | #ifndef TE_SOLARIS | |
76 | /* Bitmask of instruction types seen so far, used to populate the | |
77 | GNU attributes section with hwcap information. */ | |
78 | static uint64_t hwcap_seen; | |
79 | #endif | |
80 | ||
81 | static uint64_t hwcap_allowed; | |
82 | ||
83 | static int architecture_requested; | |
84 | static int warn_on_bump; | |
85 | ||
86 | /* If warn_on_bump and the needed architecture is higher than this | |
87 | architecture, issue a warning. */ | |
88 | static enum sparc_opcode_arch_val warn_after_architecture; | |
89 | ||
90 | /* Non-zero if the assembler should generate error if an undeclared | |
91 | g[23] register has been used in -64. */ | |
92 | static int no_undeclared_regs; | |
93 | ||
94 | /* Non-zero if the assembler should generate a warning if an | |
95 | unpredictable DCTI (delayed control transfer instruction) couple is | |
96 | found. */ | |
97 | static int dcti_couples_detect; | |
98 | ||
99 | /* Non-zero if we should try to relax jumps and calls. */ | |
100 | static int sparc_relax; | |
101 | ||
102 | /* Non-zero if we are generating PIC code. */ | |
103 | int sparc_pic_code; | |
104 | ||
105 | /* Non-zero if we should give an error when misaligned data is seen. */ | |
106 | static int enforce_aligned_data; | |
107 | ||
108 | extern int target_big_endian; | |
109 | ||
110 | static int target_little_endian_data; | |
111 | ||
112 | /* Symbols for global registers on v9. */ | |
113 | static symbolS *globals[8]; | |
114 | ||
115 | /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */ | |
116 | int sparc_cie_data_alignment; | |
117 | ||
118 | /* V9 and 86x have big and little endian data, but instructions are always big | |
119 | endian. The sparclet has bi-endian support but both data and insns have | |
120 | the same endianness. Global `target_big_endian' is used for data. | |
121 | The following macro is used for instructions. */ | |
122 | #ifndef INSN_BIG_ENDIAN | |
123 | #define INSN_BIG_ENDIAN (target_big_endian \ | |
124 | || default_arch_type == sparc86x \ | |
125 | || SPARC_OPCODE_ARCH_V9_P (max_architecture)) | |
126 | #endif | |
127 | ||
128 | /* Handle of the OPCODE hash table. */ | |
129 | static htab_t op_hash; | |
130 | ||
131 | static void s_data1 (void); | |
132 | static void s_seg (int); | |
133 | static void s_proc (int); | |
134 | static void s_reserve (int); | |
135 | static void s_common (int); | |
136 | static void s_empty (int); | |
137 | static void s_uacons (int); | |
138 | static void s_ncons (int); | |
139 | static void s_register (int); | |
140 | ||
141 | const pseudo_typeS md_pseudo_table[] = | |
142 | { | |
143 | {"align", s_align_bytes, 0}, /* Defaulting is invalid (0). */ | |
144 | {"common", s_common, 0}, | |
145 | {"empty", s_empty, 0}, | |
146 | {"global", s_globl, 0}, | |
147 | {"half", cons, 2}, | |
148 | {"nword", s_ncons, 0}, | |
149 | {"optim", s_ignore, 0}, | |
150 | {"proc", s_proc, 0}, | |
151 | {"reserve", s_reserve, 0}, | |
152 | {"seg", s_seg, 0}, | |
153 | {"skip", s_space, 0}, | |
154 | {"word", cons, 4}, | |
155 | {"xword", cons, 8}, | |
156 | {"uahalf", s_uacons, 2}, | |
157 | {"uaword", s_uacons, 4}, | |
158 | {"uaxword", s_uacons, 8}, | |
159 | /* These are specific to sparc/svr4. */ | |
160 | {"2byte", s_uacons, 2}, | |
161 | {"4byte", s_uacons, 4}, | |
162 | {"8byte", s_uacons, 8}, | |
163 | {"register", s_register, 0}, | |
164 | {NULL, 0, 0}, | |
165 | }; | |
166 | ||
167 | /* This array holds the chars that always start a comment. If the | |
168 | pre-processor is disabled, these aren't very useful. */ | |
169 | const char comment_chars[] = "!"; /* JF removed '|' from | |
170 | comment_chars. */ | |
171 | ||
172 | /* This array holds the chars that only start a comment at the beginning of | |
173 | a line. If the line seems to have the form '# 123 filename' | |
174 | .line and .file directives will appear in the pre-processed output. */ | |
175 | /* Note that input_file.c hand checks for '#' at the beginning of the | |
176 | first line of the input file. This is because the compiler outputs | |
177 | #NO_APP at the beginning of its output. */ | |
178 | /* Also note that comments started like this one will always | |
179 | work if '/' isn't otherwise defined. */ | |
180 | const char line_comment_chars[] = "#"; | |
181 | ||
182 | const char line_separator_chars[] = ";"; | |
183 | ||
184 | /* Chars that can be used to separate mant from exp in floating point | |
185 | nums. */ | |
186 | const char EXP_CHARS[] = "eE"; | |
187 | ||
188 | /* Chars that mean this number is a floating point constant. | |
189 | As in 0f12.456 | |
190 | or 0d1.2345e12 */ | |
191 | const char FLT_CHARS[] = "rRsSfFdDxXpP"; | |
192 | ||
193 | /* Also be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be | |
194 | changed in read.c. Ideally it shouldn't have to know about it at all, | |
195 | but nothing is ideal around here. */ | |
196 | ||
197 | #define isoctal(c) ((unsigned) ((c) - '0') < 8) | |
198 | ||
199 | struct sparc_it | |
200 | { | |
201 | const char *error; | |
202 | unsigned long opcode; | |
203 | struct nlist *nlistp; | |
204 | expressionS exp; | |
205 | expressionS exp2; | |
206 | int pcrel; | |
207 | bfd_reloc_code_real_type reloc; | |
208 | }; | |
209 | ||
210 | struct sparc_it the_insn, set_insn; | |
211 | ||
212 | static void output_insn (const struct sparc_opcode *, struct sparc_it *); | |
213 | \f | |
214 | /* Table of arguments to -A. | |
215 | The sparc_opcode_arch table in sparc-opc.c is insufficient and incorrect | |
216 | for this use. That table is for opcodes only. This table is for opcodes | |
217 | and file formats. */ | |
218 | ||
219 | enum sparc_arch_types {v6, v7, v8, leon, sparclet, sparclite, sparc86x, v8plus, | |
220 | v8plusa, v9, v9a, v9b, v9_64}; | |
221 | ||
222 | static struct sparc_arch { | |
223 | const char *name; | |
224 | const char *opcode_arch; | |
225 | enum sparc_arch_types arch_type; | |
226 | /* Default word size, as specified during configuration. | |
227 | A value of zero means can't be used to specify default architecture. */ | |
228 | int default_arch_size; | |
229 | /* Allowable arg to -A? */ | |
230 | int user_option_p; | |
231 | /* Extra hardware capabilities allowed. These are added to the | |
232 | hardware capabilities associated with the opcode | |
233 | architecture. */ | |
234 | int hwcap_allowed; | |
235 | int hwcap2_allowed; | |
236 | } sparc_arch_table[] = { | |
237 | { "v6", "v6", v6, 0, 1, 0, 0 }, | |
238 | { "v7", "v7", v7, 0, 1, 0, 0 }, | |
239 | { "v8", "v8", v8, 32, 1, 0, 0 }, | |
240 | { "v8a", "v8", v8, 32, 1, 0, 0 }, | |
241 | { "sparc", "v9", v9, 0, 1, HWCAP_V8PLUS, 0 }, | |
242 | { "sparcvis", "v9a", v9, 0, 1, 0, 0 }, | |
243 | { "sparcvis2", "v9b", v9, 0, 1, 0, 0 }, | |
244 | { "sparcfmaf", "v9b", v9, 0, 1, HWCAP_FMAF, 0 }, | |
245 | { "sparcima", "v9b", v9, 0, 1, HWCAP_FMAF|HWCAP_IMA, 0 }, | |
246 | { "sparcvis3", "v9b", v9, 0, 1, HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC, 0 }, | |
247 | { "sparcvis3r", "v9b", v9, 0, 1, HWCAP_FMAF|HWCAP_VIS3|HWCAP_HPC|HWCAP_FJFMAU, 0 }, | |
248 | ||
249 | { "sparc4", "v9v", v9, 0, 1, 0, 0 }, | |
250 | { "sparc5", "v9m", v9, 0, 1, 0, 0 }, | |
251 | { "sparc6", "m8", v9, 0, 1, 0, 0 }, | |
252 | ||
253 | { "leon", "leon", leon, 32, 1, 0, 0 }, | |
254 | { "sparclet", "sparclet", sparclet, 32, 1, 0, 0 }, | |
255 | { "sparclite", "sparclite", sparclite, 32, 1, 0, 0 }, | |
256 | { "sparc86x", "sparclite", sparc86x, 32, 1, 0, 0 }, | |
257 | ||
258 | { "v8plus", "v9", v9, 0, 1, HWCAP_V8PLUS, 0 }, | |
259 | { "v8plusa", "v9a", v9, 0, 1, HWCAP_V8PLUS, 0 }, | |
260 | { "v8plusb", "v9b", v9, 0, 1, HWCAP_V8PLUS, 0 }, | |
261 | { "v8plusc", "v9c", v9, 0, 1, HWCAP_V8PLUS, 0 }, | |
262 | { "v8plusd", "v9d", v9, 0, 1, HWCAP_V8PLUS, 0 }, | |
263 | { "v8pluse", "v9e", v9, 0, 1, HWCAP_V8PLUS, 0 }, | |
264 | { "v8plusv", "v9v", v9, 0, 1, HWCAP_V8PLUS, 0 }, | |
265 | { "v8plusm", "v9m", v9, 0, 1, HWCAP_V8PLUS, 0 }, | |
266 | { "v8plusm8", "m8", v9, 0, 1, HWCAP_V8PLUS, 0 }, | |
267 | ||
268 | { "v9", "v9", v9, 0, 1, 0, 0 }, | |
269 | { "v9a", "v9a", v9, 0, 1, 0, 0 }, | |
270 | { "v9b", "v9b", v9, 0, 1, 0, 0 }, | |
271 | { "v9c", "v9c", v9, 0, 1, 0, 0 }, | |
272 | { "v9d", "v9d", v9, 0, 1, 0, 0 }, | |
273 | { "v9e", "v9e", v9, 0, 1, 0, 0 }, | |
274 | { "v9v", "v9v", v9, 0, 1, 0, 0 }, | |
275 | { "v9m", "v9m", v9, 0, 1, 0, 0 }, | |
276 | { "v9m8", "m8", v9, 0, 1, 0, 0 }, | |
277 | ||
278 | /* This exists to allow configure.tgt to pass one | |
279 | value to specify both the default machine and default word size. */ | |
280 | { "v9-64", "v9", v9, 64, 0, 0, 0 }, | |
281 | { NULL, NULL, v8, 0, 0, 0, 0 } | |
282 | }; | |
283 | ||
284 | /* Variant of default_arch */ | |
285 | static enum sparc_arch_types default_arch_type; | |
286 | ||
287 | static struct sparc_arch * | |
288 | lookup_arch (const char *name) | |
289 | { | |
290 | struct sparc_arch *sa; | |
291 | ||
292 | for (sa = &sparc_arch_table[0]; sa->name != NULL; sa++) | |
293 | if (strcmp (sa->name, name) == 0) | |
294 | break; | |
295 | if (sa->name == NULL) | |
296 | return NULL; | |
297 | return sa; | |
298 | } | |
299 | ||
300 | /* Initialize the default opcode arch and word size from the default | |
301 | architecture name. */ | |
302 | ||
303 | static void | |
304 | init_default_arch (void) | |
305 | { | |
306 | struct sparc_arch *sa = lookup_arch (default_arch); | |
307 | ||
308 | if (sa == NULL | |
309 | || sa->default_arch_size == 0) | |
310 | as_fatal (_("Invalid default architecture, broken assembler.")); | |
311 | ||
312 | max_architecture = sparc_opcode_lookup_arch (sa->opcode_arch); | |
313 | if (max_architecture == SPARC_OPCODE_ARCH_BAD) | |
314 | as_fatal (_("Bad opcode table, broken assembler.")); | |
315 | default_arch_size = sparc_arch_size = sa->default_arch_size; | |
316 | default_init_p = 1; | |
317 | default_arch_type = sa->arch_type; | |
318 | } | |
319 | ||
320 | /* Called by TARGET_MACH. */ | |
321 | ||
322 | unsigned long | |
323 | sparc_mach (void) | |
324 | { | |
325 | /* We don't get a chance to initialize anything before we're called, | |
326 | so handle that now. */ | |
327 | if (! default_init_p) | |
328 | init_default_arch (); | |
329 | ||
330 | return sparc_arch_size == 64 ? bfd_mach_sparc_v9 : bfd_mach_sparc; | |
331 | } | |
332 | ||
333 | /* Called by TARGET_FORMAT. */ | |
334 | ||
335 | const char * | |
336 | sparc_target_format (void) | |
337 | { | |
338 | /* We don't get a chance to initialize anything before we're called, | |
339 | so handle that now. */ | |
340 | if (! default_init_p) | |
341 | init_default_arch (); | |
342 | ||
343 | #ifdef TE_VXWORKS | |
344 | return "elf32-sparc-vxworks"; | |
345 | #endif | |
346 | ||
347 | return sparc_arch_size == 64 ? ELF64_TARGET_FORMAT : ELF_TARGET_FORMAT; | |
348 | } | |
349 | \f | |
350 | /* md_parse_option | |
351 | * Invocation line includes a switch not recognized by the base assembler. | |
352 | * See if it's a processor-specific option. These are: | |
353 | * | |
354 | * -bump | |
355 | * Warn on architecture bumps. See also -A. | |
356 | * | |
357 | * -Av6, -Av7, -Av8, -Aleon, -Asparclite, -Asparclet | |
358 | * Standard 32 bit architectures. | |
359 | * -Av9, -Av9a, -Av9b | |
360 | * Sparc64 in either a 32 or 64 bit world (-32/-64 says which). | |
361 | * This used to only mean 64 bits, but properly specifying it | |
362 | * complicated gcc's ASM_SPECs, so now opcode selection is | |
363 | * specified orthogonally to word size (except when specifying | |
364 | * the default, but that is an internal implementation detail). | |
365 | * -Av8plus, -Av8plusa, -Av8plusb | |
366 | * Same as -Av9{,a,b}. | |
367 | * -xarch=v8plus, -xarch=v8plusa, -xarch=v8plusb | |
368 | * Same as -Av8plus{,a,b} -32, for compatibility with Sun's | |
369 | * assembler. | |
370 | * -xarch=v9, -xarch=v9a, -xarch=v9b | |
371 | * Same as -Av9{,a,b} -64, for compatibility with Sun's | |
372 | * assembler. | |
373 | * | |
374 | * Select the architecture and possibly the file format. | |
375 | * Instructions or features not supported by the selected | |
376 | * architecture cause fatal errors. | |
377 | * | |
378 | * The default is to start at v6, and bump the architecture up | |
379 | * whenever an instruction is seen at a higher level. In 32 bit | |
380 | * environments, v9 is not bumped up to, the user must pass | |
381 | * -Av8plus{,a,b}. | |
382 | * | |
383 | * If -bump is specified, a warning is printing when bumping to | |
384 | * higher levels. | |
385 | * | |
386 | * If an architecture is specified, all instructions must match | |
387 | * that architecture. Any higher level instructions are flagged | |
388 | * as errors. Note that in the 32 bit environment specifying | |
389 | * -Av8plus does not automatically create a v8plus object file, a | |
390 | * v9 insn must be seen. | |
391 | * | |
392 | * If both an architecture and -bump are specified, the | |
393 | * architecture starts at the specified level, but bumps are | |
394 | * warnings. Note that we can't set `current_architecture' to | |
395 | * the requested level in this case: in the 32 bit environment, | |
396 | * we still must avoid creating v8plus object files unless v9 | |
397 | * insns are seen. | |
398 | * | |
399 | * Note: | |
400 | * Bumping between incompatible architectures is always an | |
401 | * error. For example, from sparclite to v9. | |
402 | */ | |
403 | ||
404 | const char *md_shortopts = "A:K:VQ:sq"; | |
405 | struct option md_longopts[] = { | |
406 | #define OPTION_BUMP (OPTION_MD_BASE) | |
407 | {"bump", no_argument, NULL, OPTION_BUMP}, | |
408 | #define OPTION_SPARC (OPTION_MD_BASE + 1) | |
409 | {"sparc", no_argument, NULL, OPTION_SPARC}, | |
410 | #define OPTION_XARCH (OPTION_MD_BASE + 2) | |
411 | {"xarch", required_argument, NULL, OPTION_XARCH}, | |
412 | #define OPTION_32 (OPTION_MD_BASE + 3) | |
413 | {"32", no_argument, NULL, OPTION_32}, | |
414 | #define OPTION_64 (OPTION_MD_BASE + 4) | |
415 | {"64", no_argument, NULL, OPTION_64}, | |
416 | #define OPTION_TSO (OPTION_MD_BASE + 5) | |
417 | {"TSO", no_argument, NULL, OPTION_TSO}, | |
418 | #define OPTION_PSO (OPTION_MD_BASE + 6) | |
419 | {"PSO", no_argument, NULL, OPTION_PSO}, | |
420 | #define OPTION_RMO (OPTION_MD_BASE + 7) | |
421 | {"RMO", no_argument, NULL, OPTION_RMO}, | |
422 | #ifdef SPARC_BIENDIAN | |
423 | #define OPTION_LITTLE_ENDIAN (OPTION_MD_BASE + 8) | |
424 | {"EL", no_argument, NULL, OPTION_LITTLE_ENDIAN}, | |
425 | #define OPTION_BIG_ENDIAN (OPTION_MD_BASE + 9) | |
426 | {"EB", no_argument, NULL, OPTION_BIG_ENDIAN}, | |
427 | #endif | |
428 | #define OPTION_ENFORCE_ALIGNED_DATA (OPTION_MD_BASE + 10) | |
429 | {"enforce-aligned-data", no_argument, NULL, OPTION_ENFORCE_ALIGNED_DATA}, | |
430 | #define OPTION_LITTLE_ENDIAN_DATA (OPTION_MD_BASE + 11) | |
431 | {"little-endian-data", no_argument, NULL, OPTION_LITTLE_ENDIAN_DATA}, | |
432 | #define OPTION_NO_UNDECLARED_REGS (OPTION_MD_BASE + 12) | |
433 | {"no-undeclared-regs", no_argument, NULL, OPTION_NO_UNDECLARED_REGS}, | |
434 | #define OPTION_UNDECLARED_REGS (OPTION_MD_BASE + 13) | |
435 | {"undeclared-regs", no_argument, NULL, OPTION_UNDECLARED_REGS}, | |
436 | #define OPTION_RELAX (OPTION_MD_BASE + 14) | |
437 | {"relax", no_argument, NULL, OPTION_RELAX}, | |
438 | #define OPTION_NO_RELAX (OPTION_MD_BASE + 15) | |
439 | {"no-relax", no_argument, NULL, OPTION_NO_RELAX}, | |
440 | #define OPTION_DCTI_COUPLES_DETECT (OPTION_MD_BASE + 16) | |
441 | {"dcti-couples-detect", no_argument, NULL, OPTION_DCTI_COUPLES_DETECT}, | |
442 | {NULL, no_argument, NULL, 0} | |
443 | }; | |
444 | ||
445 | size_t md_longopts_size = sizeof (md_longopts); | |
446 | ||
447 | int | |
448 | md_parse_option (int c, const char *arg) | |
449 | { | |
450 | /* We don't get a chance to initialize anything before we're called, | |
451 | so handle that now. */ | |
452 | if (! default_init_p) | |
453 | init_default_arch (); | |
454 | ||
455 | switch (c) | |
456 | { | |
457 | case OPTION_BUMP: | |
458 | warn_on_bump = 1; | |
459 | warn_after_architecture = SPARC_OPCODE_ARCH_V6; | |
460 | break; | |
461 | ||
462 | case OPTION_XARCH: | |
463 | if (startswith (arg, "v9")) | |
464 | md_parse_option (OPTION_64, NULL); | |
465 | else | |
466 | { | |
467 | if (startswith (arg, "v8") | |
468 | || startswith (arg, "v7") | |
469 | || startswith (arg, "v6") | |
470 | || !strcmp (arg, "sparclet") | |
471 | || !strcmp (arg, "sparclite") | |
472 | || !strcmp (arg, "sparc86x")) | |
473 | md_parse_option (OPTION_32, NULL); | |
474 | } | |
475 | /* Fall through. */ | |
476 | ||
477 | case 'A': | |
478 | { | |
479 | struct sparc_arch *sa; | |
480 | enum sparc_opcode_arch_val opcode_arch; | |
481 | ||
482 | sa = lookup_arch (arg); | |
483 | if (sa == NULL | |
484 | || ! sa->user_option_p) | |
485 | { | |
486 | if (c == OPTION_XARCH) | |
487 | as_bad (_("invalid architecture -xarch=%s"), arg); | |
488 | else | |
489 | as_bad (_("invalid architecture -A%s"), arg); | |
490 | return 0; | |
491 | } | |
492 | ||
493 | opcode_arch = sparc_opcode_lookup_arch (sa->opcode_arch); | |
494 | if (opcode_arch == SPARC_OPCODE_ARCH_BAD) | |
495 | as_fatal (_("Bad opcode table, broken assembler.")); | |
496 | ||
497 | if (!architecture_requested | |
498 | || opcode_arch > max_architecture) | |
499 | max_architecture = opcode_arch; | |
500 | ||
501 | /* The allowed hardware capabilities are the implied by the | |
502 | opcodes arch plus any extra capabilities defined in the GAS | |
503 | arch. */ | |
504 | hwcap_allowed | |
505 | = (hwcap_allowed | |
506 | | ((uint64_t) sparc_opcode_archs[opcode_arch].hwcaps2 << 32) | |
507 | | ((uint64_t) sa->hwcap2_allowed << 32) | |
508 | | sparc_opcode_archs[opcode_arch].hwcaps | |
509 | | sa->hwcap_allowed); | |
510 | architecture_requested = 1; | |
511 | } | |
512 | break; | |
513 | ||
514 | case OPTION_SPARC: | |
515 | /* Ignore -sparc, used by SunOS make default .s.o rule. */ | |
516 | break; | |
517 | ||
518 | case OPTION_ENFORCE_ALIGNED_DATA: | |
519 | enforce_aligned_data = 1; | |
520 | break; | |
521 | ||
522 | #ifdef SPARC_BIENDIAN | |
523 | case OPTION_LITTLE_ENDIAN: | |
524 | target_big_endian = 0; | |
525 | if (default_arch_type != sparclet) | |
526 | as_fatal ("This target does not support -EL"); | |
527 | break; | |
528 | case OPTION_LITTLE_ENDIAN_DATA: | |
529 | target_little_endian_data = 1; | |
530 | target_big_endian = 0; | |
531 | if (default_arch_type != sparc86x | |
532 | && default_arch_type != v9) | |
533 | as_fatal ("This target does not support --little-endian-data"); | |
534 | break; | |
535 | case OPTION_BIG_ENDIAN: | |
536 | target_big_endian = 1; | |
537 | break; | |
538 | #endif | |
539 | ||
540 | case OPTION_32: | |
541 | case OPTION_64: | |
542 | { | |
543 | const char **list, **l; | |
544 | ||
545 | sparc_arch_size = c == OPTION_32 ? 32 : 64; | |
546 | list = bfd_target_list (); | |
547 | for (l = list; *l != NULL; l++) | |
548 | { | |
549 | if (sparc_arch_size == 32) | |
550 | { | |
551 | if (startswith (*l, "elf32-sparc")) | |
552 | break; | |
553 | } | |
554 | else | |
555 | { | |
556 | if (startswith (*l, "elf64-sparc")) | |
557 | break; | |
558 | } | |
559 | } | |
560 | if (*l == NULL) | |
561 | as_fatal (_("No compiled in support for %d bit object file format"), | |
562 | sparc_arch_size); | |
563 | free (list); | |
564 | ||
565 | if (sparc_arch_size == 64 | |
566 | && max_architecture < SPARC_OPCODE_ARCH_V9) | |
567 | max_architecture = SPARC_OPCODE_ARCH_V9; | |
568 | } | |
569 | break; | |
570 | ||
571 | case OPTION_TSO: | |
572 | sparc_memory_model = MM_TSO; | |
573 | break; | |
574 | ||
575 | case OPTION_PSO: | |
576 | sparc_memory_model = MM_PSO; | |
577 | break; | |
578 | ||
579 | case OPTION_RMO: | |
580 | sparc_memory_model = MM_RMO; | |
581 | break; | |
582 | ||
583 | case 'V': | |
584 | print_version_id (); | |
585 | break; | |
586 | ||
587 | case 'Q': | |
588 | /* Qy - do emit .comment | |
589 | Qn - do not emit .comment. */ | |
590 | break; | |
591 | ||
592 | case 's': | |
593 | /* Use .stab instead of .stab.excl. */ | |
594 | break; | |
595 | ||
596 | case 'q': | |
597 | /* quick -- Native assembler does fewer checks. */ | |
598 | break; | |
599 | ||
600 | case 'K': | |
601 | if (strcmp (arg, "PIC") != 0) | |
602 | as_warn (_("Unrecognized option following -K")); | |
603 | else | |
604 | sparc_pic_code = 1; | |
605 | break; | |
606 | ||
607 | case OPTION_NO_UNDECLARED_REGS: | |
608 | no_undeclared_regs = 1; | |
609 | break; | |
610 | ||
611 | case OPTION_UNDECLARED_REGS: | |
612 | no_undeclared_regs = 0; | |
613 | break; | |
614 | ||
615 | case OPTION_RELAX: | |
616 | sparc_relax = 1; | |
617 | break; | |
618 | ||
619 | case OPTION_NO_RELAX: | |
620 | sparc_relax = 0; | |
621 | break; | |
622 | ||
623 | case OPTION_DCTI_COUPLES_DETECT: | |
624 | dcti_couples_detect = 1; | |
625 | break; | |
626 | ||
627 | default: | |
628 | return 0; | |
629 | } | |
630 | ||
631 | return 1; | |
632 | } | |
633 | ||
634 | void | |
635 | md_show_usage (FILE *stream) | |
636 | { | |
637 | const struct sparc_arch *arch; | |
638 | int column; | |
639 | ||
640 | /* We don't get a chance to initialize anything before we're called, | |
641 | so handle that now. */ | |
642 | if (! default_init_p) | |
643 | init_default_arch (); | |
644 | ||
645 | fprintf (stream, _("SPARC options:\n")); | |
646 | column = 0; | |
647 | for (arch = &sparc_arch_table[0]; arch->name; arch++) | |
648 | { | |
649 | if (!arch->user_option_p) | |
650 | continue; | |
651 | if (arch != &sparc_arch_table[0]) | |
652 | fprintf (stream, " | "); | |
653 | if (column + strlen (arch->name) > 70) | |
654 | { | |
655 | column = 0; | |
656 | fputc ('\n', stream); | |
657 | } | |
658 | column += 5 + 2 + strlen (arch->name); | |
659 | fprintf (stream, "-A%s", arch->name); | |
660 | } | |
661 | for (arch = &sparc_arch_table[0]; arch->name; arch++) | |
662 | { | |
663 | if (!arch->user_option_p) | |
664 | continue; | |
665 | fprintf (stream, " | "); | |
666 | if (column + strlen (arch->name) > 65) | |
667 | { | |
668 | column = 0; | |
669 | fputc ('\n', stream); | |
670 | } | |
671 | column += 5 + 7 + strlen (arch->name); | |
672 | fprintf (stream, "-xarch=%s", arch->name); | |
673 | } | |
674 | fprintf (stream, _("\n\ | |
675 | specify variant of SPARC architecture\n\ | |
676 | -bump warn when assembler switches architectures\n\ | |
677 | -sparc ignored\n\ | |
678 | --enforce-aligned-data force .long, etc., to be aligned correctly\n\ | |
679 | -relax relax jumps and branches (default)\n\ | |
680 | -no-relax avoid changing any jumps and branches\n")); | |
681 | fprintf (stream, _("\ | |
682 | -32 create 32 bit object file\n\ | |
683 | -64 create 64 bit object file\n")); | |
684 | fprintf (stream, _("\ | |
685 | [default is %d]\n"), default_arch_size); | |
686 | fprintf (stream, _("\ | |
687 | -TSO use Total Store Ordering\n\ | |
688 | -PSO use Partial Store Ordering\n\ | |
689 | -RMO use Relaxed Memory Ordering\n")); | |
690 | fprintf (stream, _("\ | |
691 | [default is %s]\n"), (default_arch_size == 64) ? "RMO" : "TSO"); | |
692 | fprintf (stream, _("\ | |
693 | -KPIC generate PIC\n\ | |
694 | -V print assembler version number\n\ | |
695 | -undeclared-regs ignore application global register usage without\n\ | |
696 | appropriate .register directive (default)\n\ | |
697 | -no-undeclared-regs force error on application global register usage\n\ | |
698 | without appropriate .register directive\n\ | |
699 | --dcti-couples-detect warn when an unpredictable DCTI couple is found\n\ | |
700 | -q ignored\n\ | |
701 | -Qy, -Qn ignored\n\ | |
702 | -s ignored\n")); | |
703 | #ifdef SPARC_BIENDIAN | |
704 | fprintf (stream, _("\ | |
705 | -EL generate code for a little endian machine\n\ | |
706 | -EB generate code for a big endian machine\n\ | |
707 | --little-endian-data generate code for a machine having big endian\n\ | |
708 | instructions and little endian data.\n")); | |
709 | #endif | |
710 | } | |
711 | \f | |
712 | /* Native operand size opcode translation. */ | |
713 | static struct | |
714 | { | |
715 | const char *name; | |
716 | const char *name32; | |
717 | const char *name64; | |
718 | } native_op_table[] = | |
719 | { | |
720 | {"ldn", "ld", "ldx"}, | |
721 | {"ldna", "lda", "ldxa"}, | |
722 | {"stn", "st", "stx"}, | |
723 | {"stna", "sta", "stxa"}, | |
724 | {"slln", "sll", "sllx"}, | |
725 | {"srln", "srl", "srlx"}, | |
726 | {"sran", "sra", "srax"}, | |
727 | {"casn", "cas", "casx"}, | |
728 | {"casna", "casa", "casxa"}, | |
729 | {"clrn", "clr", "clrx"}, | |
730 | {NULL, NULL, NULL}, | |
731 | }; | |
732 | \f | |
733 | /* sparc64 privileged and hyperprivileged registers. */ | |
734 | ||
735 | struct priv_reg_entry | |
736 | { | |
737 | const char *name; | |
738 | int regnum; | |
739 | }; | |
740 | ||
741 | struct priv_reg_entry priv_reg_table[] = | |
742 | { | |
743 | {"tpc", 0}, | |
744 | {"tnpc", 1}, | |
745 | {"tstate", 2}, | |
746 | {"tt", 3}, | |
747 | {"tick", 4}, | |
748 | {"tba", 5}, | |
749 | {"pstate", 6}, | |
750 | {"tl", 7}, | |
751 | {"pil", 8}, | |
752 | {"cwp", 9}, | |
753 | {"cansave", 10}, | |
754 | {"canrestore", 11}, | |
755 | {"cleanwin", 12}, | |
756 | {"otherwin", 13}, | |
757 | {"wstate", 14}, | |
758 | {"fq", 15}, | |
759 | {"gl", 16}, | |
760 | {"pmcdper", 23}, | |
761 | {"ver", 31}, | |
762 | {NULL, -1}, /* End marker. */ | |
763 | }; | |
764 | ||
765 | struct priv_reg_entry hpriv_reg_table[] = | |
766 | { | |
767 | {"hpstate", 0}, | |
768 | {"htstate", 1}, | |
769 | {"hintp", 3}, | |
770 | {"htba", 5}, | |
771 | {"hver", 6}, | |
772 | {"hmcdper", 23}, | |
773 | {"hmcddfr", 24}, | |
774 | {"hva_mask_nz", 27}, | |
775 | {"hstick_offset", 28}, | |
776 | {"hstick_enable", 29}, | |
777 | {"hstick_cmpr", 31}, | |
778 | {NULL, -1}, /* End marker. */ | |
779 | }; | |
780 | ||
781 | /* v9a or later specific ancillary state registers. */ | |
782 | ||
783 | struct priv_reg_entry v9a_asr_table[] = | |
784 | { | |
785 | {"tick_cmpr", 23}, | |
786 | {"sys_tick_cmpr", 25}, | |
787 | {"sys_tick", 24}, | |
788 | {"stick_cmpr", 25}, | |
789 | {"stick", 24}, | |
790 | {"softint_clear", 21}, | |
791 | {"softint_set", 20}, | |
792 | {"softint", 22}, | |
793 | {"set_softint", 20}, | |
794 | {"pause", 27}, | |
795 | {"pic", 17}, | |
796 | {"pcr", 16}, | |
797 | {"mwait", 28}, | |
798 | {"gsr", 19}, | |
799 | {"dcr", 18}, | |
800 | {"cfr", 26}, | |
801 | {"clear_softint", 21}, | |
802 | {NULL, -1}, /* End marker. */ | |
803 | }; | |
804 | ||
805 | static int | |
806 | cmp_reg_entry (const void *parg, const void *qarg) | |
807 | { | |
808 | const struct priv_reg_entry *p = (const struct priv_reg_entry *) parg; | |
809 | const struct priv_reg_entry *q = (const struct priv_reg_entry *) qarg; | |
810 | ||
811 | if (p->name == q->name) | |
812 | return 0; | |
813 | else if (p->name == NULL) | |
814 | return 1; | |
815 | else if (q->name == NULL) | |
816 | return -1; | |
817 | else | |
818 | return strcmp (q->name, p->name); | |
819 | } | |
820 | \f | |
821 | /* sparc %-pseudo-operations. */ | |
822 | ||
823 | ||
824 | #define F_POP_V9 0x1 /* The pseudo-op is for v9 only. */ | |
825 | #define F_POP_PCREL 0x2 /* The pseudo-op can be used in pc-relative | |
826 | contexts. */ | |
827 | #define F_POP_TLS_CALL 0x4 /* The pseudo-op marks a tls call. */ | |
828 | #define F_POP_POSTFIX 0x8 /* The pseudo-op should appear after the | |
829 | last operand of an | |
830 | instruction. (Generally they can appear | |
831 | anywhere an immediate operand is | |
832 | expected. */ | |
833 | struct pop_entry | |
834 | { | |
835 | /* The name as it appears in assembler. */ | |
836 | const char *name; | |
837 | /* The reloc this pseudo-op translates to. */ | |
838 | bfd_reloc_code_real_type reloc; | |
839 | /* Flags. See F_POP_* above. */ | |
840 | int flags; | |
841 | }; | |
842 | ||
843 | struct pop_entry pop_table[] = | |
844 | { | |
845 | { "hix", BFD_RELOC_SPARC_HIX22, F_POP_V9 }, | |
846 | { "lox", BFD_RELOC_SPARC_LOX10, F_POP_V9 }, | |
847 | { "hi", BFD_RELOC_HI22, F_POP_PCREL }, | |
848 | { "lo", BFD_RELOC_LO10, F_POP_PCREL }, | |
849 | { "pc22", BFD_RELOC_SPARC_PC22, F_POP_PCREL }, | |
850 | { "pc10", BFD_RELOC_SPARC_PC10, F_POP_PCREL }, | |
851 | { "hh", BFD_RELOC_SPARC_HH22, F_POP_V9|F_POP_PCREL }, | |
852 | { "hm", BFD_RELOC_SPARC_HM10, F_POP_V9|F_POP_PCREL }, | |
853 | { "lm", BFD_RELOC_SPARC_LM22, F_POP_V9|F_POP_PCREL }, | |
854 | { "h34", BFD_RELOC_SPARC_H34, F_POP_V9 }, | |
855 | { "l34", BFD_RELOC_SPARC_L44, F_POP_V9 }, | |
856 | { "h44", BFD_RELOC_SPARC_H44, F_POP_V9 }, | |
857 | { "m44", BFD_RELOC_SPARC_M44, F_POP_V9 }, | |
858 | { "l44", BFD_RELOC_SPARC_L44, F_POP_V9 }, | |
859 | { "uhi", BFD_RELOC_SPARC_HH22, F_POP_V9 }, | |
860 | { "ulo", BFD_RELOC_SPARC_HM10, F_POP_V9 }, | |
861 | { "tgd_hi22", BFD_RELOC_SPARC_TLS_GD_HI22, 0 }, | |
862 | { "tgd_lo10", BFD_RELOC_SPARC_TLS_GD_LO10, 0 }, | |
863 | { "tldm_hi22", BFD_RELOC_SPARC_TLS_LDM_HI22, 0 }, | |
864 | { "tldm_lo10", BFD_RELOC_SPARC_TLS_LDM_LO10, 0 }, | |
865 | { "tldo_hix22", BFD_RELOC_SPARC_TLS_LDO_HIX22, 0 }, | |
866 | { "tldo_lox10", BFD_RELOC_SPARC_TLS_LDO_LOX10, 0 }, | |
867 | { "tie_hi22", BFD_RELOC_SPARC_TLS_IE_HI22, 0 }, | |
868 | { "tie_lo10", BFD_RELOC_SPARC_TLS_IE_LO10, 0 }, | |
869 | { "tle_hix22", BFD_RELOC_SPARC_TLS_LE_HIX22, 0 }, | |
870 | { "tle_lox10", BFD_RELOC_SPARC_TLS_LE_LOX10, 0 }, | |
871 | { "gdop_hix22", BFD_RELOC_SPARC_GOTDATA_OP_HIX22, 0 }, | |
872 | { "gdop_lox10", BFD_RELOC_SPARC_GOTDATA_OP_LOX10, 0 }, | |
873 | { "tgd_add", BFD_RELOC_SPARC_TLS_GD_ADD, F_POP_POSTFIX }, | |
874 | { "tgd_call", BFD_RELOC_SPARC_TLS_GD_CALL, F_POP_POSTFIX|F_POP_TLS_CALL }, | |
875 | { "tldm_add", BFD_RELOC_SPARC_TLS_LDM_ADD, F_POP_POSTFIX }, | |
876 | { "tldm_call", BFD_RELOC_SPARC_TLS_LDM_CALL, F_POP_POSTFIX|F_POP_TLS_CALL }, | |
877 | { "tldo_add", BFD_RELOC_SPARC_TLS_LDO_ADD, F_POP_POSTFIX }, | |
878 | { "tie_ldx", BFD_RELOC_SPARC_TLS_IE_LDX, F_POP_POSTFIX }, | |
879 | { "tie_ld", BFD_RELOC_SPARC_TLS_IE_LD, F_POP_POSTFIX }, | |
880 | { "tie_add", BFD_RELOC_SPARC_TLS_IE_ADD, F_POP_POSTFIX }, | |
881 | { "gdop", BFD_RELOC_SPARC_GOTDATA_OP, F_POP_POSTFIX } | |
882 | }; | |
883 | \f | |
884 | /* Table of %-names that can appear in a sparc assembly program. This | |
885 | table is initialized in md_begin and contains entries for each | |
886 | privileged/hyperprivileged/alternate register and %-pseudo-op. */ | |
887 | ||
888 | enum perc_entry_type | |
889 | { | |
890 | perc_entry_none = 0, | |
891 | perc_entry_reg, | |
892 | perc_entry_post_pop, | |
893 | perc_entry_imm_pop | |
894 | }; | |
895 | ||
896 | struct perc_entry | |
897 | { | |
898 | /* Entry type. */ | |
899 | enum perc_entry_type type; | |
900 | /* Name of the %-entity. */ | |
901 | const char *name; | |
902 | /* strlen (name). */ | |
903 | int len; | |
904 | /* Value. Either a pop or a reg depending on type.*/ | |
905 | union | |
906 | { | |
907 | struct pop_entry *pop; | |
908 | struct priv_reg_entry *reg; | |
909 | }; | |
910 | }; | |
911 | ||
912 | #define NUM_PERC_ENTRIES \ | |
913 | (((sizeof (priv_reg_table) / sizeof (priv_reg_table[0])) - 1) \ | |
914 | + ((sizeof (hpriv_reg_table) / sizeof (hpriv_reg_table[0])) - 1) \ | |
915 | + ((sizeof (v9a_asr_table) / sizeof (v9a_asr_table[0])) - 1) \ | |
916 | + ARRAY_SIZE (pop_table) \ | |
917 | + 1) | |
918 | ||
919 | struct perc_entry perc_table[NUM_PERC_ENTRIES]; | |
920 | ||
921 | static int | |
922 | cmp_perc_entry (const void *parg, const void *qarg) | |
923 | { | |
924 | const struct perc_entry *p = (const struct perc_entry *) parg; | |
925 | const struct perc_entry *q = (const struct perc_entry *) qarg; | |
926 | ||
927 | if (p->name == q->name) | |
928 | return 0; | |
929 | else if (p->name == NULL) | |
930 | return 1; | |
931 | else if (q->name == NULL) | |
932 | return -1; | |
933 | else | |
934 | return strcmp (q->name, p->name); | |
935 | } | |
936 | \f | |
937 | /* This function is called once, at assembler startup time. It should | |
938 | set up all the tables, etc. that the MD part of the assembler will | |
939 | need. */ | |
940 | ||
941 | void | |
942 | md_begin (void) | |
943 | { | |
944 | int lose = 0; | |
945 | unsigned int i = 0; | |
946 | ||
947 | /* We don't get a chance to initialize anything before md_parse_option | |
948 | is called, and it may not be called, so handle default initialization | |
949 | now if not already done. */ | |
950 | if (! default_init_p) | |
951 | init_default_arch (); | |
952 | ||
953 | sparc_cie_data_alignment = sparc_arch_size == 64 ? -8 : -4; | |
954 | op_hash = str_htab_create (); | |
955 | ||
956 | while (i < (unsigned int) sparc_num_opcodes) | |
957 | { | |
958 | const char *name = sparc_opcodes[i].name; | |
959 | if (str_hash_insert (op_hash, name, &sparc_opcodes[i], 0) != NULL) | |
960 | { | |
961 | as_bad (_("duplicate %s"), name); | |
962 | lose = 1; | |
963 | } | |
964 | do | |
965 | { | |
966 | if (sparc_opcodes[i].match & sparc_opcodes[i].lose) | |
967 | { | |
968 | as_bad (_("Internal error: losing opcode: `%s' \"%s\"\n"), | |
969 | sparc_opcodes[i].name, sparc_opcodes[i].args); | |
970 | lose = 1; | |
971 | } | |
972 | ++i; | |
973 | } | |
974 | while (i < (unsigned int) sparc_num_opcodes | |
975 | && !strcmp (sparc_opcodes[i].name, name)); | |
976 | } | |
977 | ||
978 | for (i = 0; native_op_table[i].name; i++) | |
979 | { | |
980 | const struct sparc_opcode *insn; | |
981 | const char *name = ((sparc_arch_size == 32) | |
982 | ? native_op_table[i].name32 | |
983 | : native_op_table[i].name64); | |
984 | insn = (struct sparc_opcode *) str_hash_find (op_hash, name); | |
985 | if (insn == NULL) | |
986 | { | |
987 | as_bad (_("Internal error: can't find opcode `%s' for `%s'\n"), | |
988 | name, native_op_table[i].name); | |
989 | lose = 1; | |
990 | } | |
991 | else if (str_hash_insert (op_hash, native_op_table[i].name, insn, 0)) | |
992 | { | |
993 | as_bad (_("duplicate %s"), native_op_table[i].name); | |
994 | lose = 1; | |
995 | } | |
996 | } | |
997 | ||
998 | if (lose) | |
999 | as_fatal (_("Broken assembler. No assembly attempted.")); | |
1000 | ||
1001 | qsort (priv_reg_table, sizeof (priv_reg_table) / sizeof (priv_reg_table[0]), | |
1002 | sizeof (priv_reg_table[0]), cmp_reg_entry); | |
1003 | qsort (hpriv_reg_table, sizeof (hpriv_reg_table) / sizeof (hpriv_reg_table[0]), | |
1004 | sizeof (hpriv_reg_table[0]), cmp_reg_entry); | |
1005 | qsort (v9a_asr_table, sizeof (v9a_asr_table) / sizeof (v9a_asr_table[0]), | |
1006 | sizeof (v9a_asr_table[0]), cmp_reg_entry); | |
1007 | ||
1008 | /* If -bump, record the architecture level at which we start issuing | |
1009 | warnings. The behaviour is different depending upon whether an | |
1010 | architecture was explicitly specified. If it wasn't, we issue warnings | |
1011 | for all upwards bumps. If it was, we don't start issuing warnings until | |
1012 | we need to bump beyond the requested architecture or when we bump between | |
1013 | conflicting architectures. */ | |
1014 | ||
1015 | if (warn_on_bump | |
1016 | && architecture_requested) | |
1017 | { | |
1018 | /* `max_architecture' records the requested architecture. | |
1019 | Issue warnings if we go above it. */ | |
1020 | warn_after_architecture = max_architecture; | |
1021 | } | |
1022 | ||
1023 | /* Find the highest architecture level that doesn't conflict with | |
1024 | the requested one. */ | |
1025 | ||
1026 | if (warn_on_bump | |
1027 | || !architecture_requested) | |
1028 | { | |
1029 | enum sparc_opcode_arch_val current_max_architecture | |
1030 | = max_architecture; | |
1031 | ||
1032 | for (max_architecture = SPARC_OPCODE_ARCH_MAX; | |
1033 | max_architecture > warn_after_architecture; | |
1034 | --max_architecture) | |
1035 | if (! SPARC_OPCODE_CONFLICT_P (max_architecture, | |
1036 | current_max_architecture)) | |
1037 | break; | |
1038 | } | |
1039 | ||
1040 | /* Prepare the tables of %-pseudo-ops. */ | |
1041 | { | |
1042 | struct priv_reg_entry *reg_tables[] | |
1043 | = {priv_reg_table, hpriv_reg_table, v9a_asr_table, NULL}; | |
1044 | struct priv_reg_entry **reg_table; | |
1045 | int entry = 0; | |
1046 | ||
1047 | /* Add registers. */ | |
1048 | for (reg_table = reg_tables; reg_table[0]; reg_table++) | |
1049 | { | |
1050 | struct priv_reg_entry *reg; | |
1051 | for (reg = *reg_table; reg->name; reg++) | |
1052 | { | |
1053 | struct perc_entry *p = &perc_table[entry++]; | |
1054 | p->type = perc_entry_reg; | |
1055 | p->name = reg->name; | |
1056 | p->len = strlen (reg->name); | |
1057 | p->reg = reg; | |
1058 | } | |
1059 | } | |
1060 | ||
1061 | /* Add %-pseudo-ops. */ | |
1062 | for (i = 0; i < ARRAY_SIZE (pop_table); i++) | |
1063 | { | |
1064 | struct perc_entry *p = &perc_table[entry++]; | |
1065 | p->type = (pop_table[i].flags & F_POP_POSTFIX | |
1066 | ? perc_entry_post_pop : perc_entry_imm_pop); | |
1067 | p->name = pop_table[i].name; | |
1068 | p->len = strlen (pop_table[i].name); | |
1069 | p->pop = &pop_table[i]; | |
1070 | } | |
1071 | ||
1072 | /* Last entry is the sentinel. */ | |
1073 | perc_table[entry].type = perc_entry_none; | |
1074 | ||
1075 | qsort (perc_table, sizeof (perc_table) / sizeof (perc_table[0]), | |
1076 | sizeof (perc_table[0]), cmp_perc_entry); | |
1077 | ||
1078 | } | |
1079 | } | |
1080 | ||
1081 | /* Called after all assembly has been done. */ | |
1082 | ||
1083 | void | |
1084 | sparc_md_finish (void) | |
1085 | { | |
1086 | unsigned long mach; | |
1087 | #ifndef TE_SOLARIS | |
1088 | int hwcaps, hwcaps2; | |
1089 | #endif | |
1090 | ||
1091 | if (sparc_arch_size == 64) | |
1092 | switch (current_architecture) | |
1093 | { | |
1094 | case SPARC_OPCODE_ARCH_V9A: mach = bfd_mach_sparc_v9a; break; | |
1095 | case SPARC_OPCODE_ARCH_V9B: mach = bfd_mach_sparc_v9b; break; | |
1096 | case SPARC_OPCODE_ARCH_V9C: mach = bfd_mach_sparc_v9c; break; | |
1097 | case SPARC_OPCODE_ARCH_V9D: mach = bfd_mach_sparc_v9d; break; | |
1098 | case SPARC_OPCODE_ARCH_V9E: mach = bfd_mach_sparc_v9e; break; | |
1099 | case SPARC_OPCODE_ARCH_V9V: mach = bfd_mach_sparc_v9v; break; | |
1100 | case SPARC_OPCODE_ARCH_V9M: mach = bfd_mach_sparc_v9m; break; | |
1101 | case SPARC_OPCODE_ARCH_M8: mach = bfd_mach_sparc_v9m8; break; | |
1102 | default: mach = bfd_mach_sparc_v9; break; | |
1103 | } | |
1104 | else | |
1105 | switch (current_architecture) | |
1106 | { | |
1107 | case SPARC_OPCODE_ARCH_SPARCLET: mach = bfd_mach_sparc_sparclet; break; | |
1108 | case SPARC_OPCODE_ARCH_V9: mach = bfd_mach_sparc_v8plus; break; | |
1109 | case SPARC_OPCODE_ARCH_V9A: mach = bfd_mach_sparc_v8plusa; break; | |
1110 | case SPARC_OPCODE_ARCH_V9B: mach = bfd_mach_sparc_v8plusb; break; | |
1111 | case SPARC_OPCODE_ARCH_V9C: mach = bfd_mach_sparc_v8plusc; break; | |
1112 | case SPARC_OPCODE_ARCH_V9D: mach = bfd_mach_sparc_v8plusd; break; | |
1113 | case SPARC_OPCODE_ARCH_V9E: mach = bfd_mach_sparc_v8pluse; break; | |
1114 | case SPARC_OPCODE_ARCH_V9V: mach = bfd_mach_sparc_v8plusv; break; | |
1115 | case SPARC_OPCODE_ARCH_V9M: mach = bfd_mach_sparc_v8plusm; break; | |
1116 | case SPARC_OPCODE_ARCH_M8: mach = bfd_mach_sparc_v8plusm8; break; | |
1117 | /* The sparclite is treated like a normal sparc. Perhaps it shouldn't | |
1118 | be but for now it is (since that's the way it's always been | |
1119 | treated). */ | |
1120 | default: mach = bfd_mach_sparc; break; | |
1121 | } | |
1122 | bfd_set_arch_mach (stdoutput, bfd_arch_sparc, mach); | |
1123 | ||
1124 | #ifndef TE_SOLARIS | |
1125 | hwcaps = hwcap_seen & U0xffffffff; | |
1126 | hwcaps2 = hwcap_seen >> 32; | |
1127 | ||
1128 | if (hwcaps) | |
1129 | bfd_elf_add_obj_attr_int (stdoutput, OBJ_ATTR_GNU, Tag_GNU_Sparc_HWCAPS, hwcaps); | |
1130 | if (hwcaps2) | |
1131 | bfd_elf_add_obj_attr_int (stdoutput, OBJ_ATTR_GNU, Tag_GNU_Sparc_HWCAPS2, hwcaps2); | |
1132 | #endif | |
1133 | } | |
1134 | \f | |
1135 | /* Return non-zero if VAL is in the range -(MAX+1) to MAX. */ | |
1136 | ||
1137 | static inline int | |
1138 | in_signed_range (bfd_signed_vma val, bfd_signed_vma max) | |
1139 | { | |
1140 | if (max <= 0) | |
1141 | abort (); | |
1142 | /* Sign-extend the value from the architecture word size, so that | |
1143 | 0xffffffff is always considered -1 on sparc32. */ | |
1144 | if (sparc_arch_size == 32) | |
1145 | { | |
1146 | bfd_vma sign = (bfd_vma) 1 << 31; | |
1147 | val = ((val & U0xffffffff) ^ sign) - sign; | |
1148 | } | |
1149 | if (val > max) | |
1150 | return 0; | |
1151 | if (val < ~max) | |
1152 | return 0; | |
1153 | return 1; | |
1154 | } | |
1155 | ||
1156 | /* Return non-zero if VAL is in the range 0 to MAX. */ | |
1157 | ||
1158 | static inline int | |
1159 | in_unsigned_range (bfd_vma val, bfd_vma max) | |
1160 | { | |
1161 | if (val > max) | |
1162 | return 0; | |
1163 | return 1; | |
1164 | } | |
1165 | ||
1166 | /* Return non-zero if VAL is in the range -(MAX/2+1) to MAX. | |
1167 | (e.g. -15 to +31). */ | |
1168 | ||
1169 | static inline int | |
1170 | in_bitfield_range (bfd_signed_vma val, bfd_signed_vma max) | |
1171 | { | |
1172 | if (max <= 0) | |
1173 | abort (); | |
1174 | if (val > max) | |
1175 | return 0; | |
1176 | if (val < ~(max >> 1)) | |
1177 | return 0; | |
1178 | return 1; | |
1179 | } | |
1180 | ||
1181 | static int | |
1182 | sparc_ffs (unsigned int mask) | |
1183 | { | |
1184 | int i; | |
1185 | ||
1186 | if (mask == 0) | |
1187 | return -1; | |
1188 | ||
1189 | for (i = 0; (mask & 1) == 0; ++i) | |
1190 | mask >>= 1; | |
1191 | return i; | |
1192 | } | |
1193 | ||
1194 | /* Implement big shift right. */ | |
1195 | static bfd_vma | |
1196 | BSR (bfd_vma val, int amount) | |
1197 | { | |
1198 | if (sizeof (bfd_vma) <= 4 && amount >= 32) | |
1199 | as_fatal (_("Support for 64-bit arithmetic not compiled in.")); | |
1200 | return val >> amount; | |
1201 | } | |
1202 | \f | |
1203 | /* For communication between sparc_ip and get_expression. */ | |
1204 | static char *expr_parse_end; | |
1205 | ||
1206 | /* Values for `special_case'. | |
1207 | Instructions that require weird handling because they're longer than | |
1208 | 4 bytes. */ | |
1209 | #define SPECIAL_CASE_NONE 0 | |
1210 | #define SPECIAL_CASE_SET 1 | |
1211 | #define SPECIAL_CASE_SETSW 2 | |
1212 | #define SPECIAL_CASE_SETX 3 | |
1213 | /* FIXME: sparc-opc.c doesn't have necessary "S" trigger to enable this. */ | |
1214 | #define SPECIAL_CASE_FDIV 4 | |
1215 | ||
1216 | /* Bit masks of various insns. */ | |
1217 | #define NOP_INSN 0x01000000 | |
1218 | #define OR_INSN 0x80100000 | |
1219 | #define XOR_INSN 0x80180000 | |
1220 | #define FMOVS_INSN 0x81A00020 | |
1221 | #define SETHI_INSN 0x01000000 | |
1222 | #define SLLX_INSN 0x81281000 | |
1223 | #define SRA_INSN 0x81380000 | |
1224 | ||
1225 | /* The last instruction to be assembled. */ | |
1226 | static const struct sparc_opcode *last_insn; | |
1227 | /* The assembled opcode of `last_insn'. */ | |
1228 | static unsigned long last_opcode; | |
1229 | \f | |
1230 | /* Handle the set and setuw synthetic instructions. */ | |
1231 | ||
1232 | static void | |
1233 | synthetize_setuw (const struct sparc_opcode *insn) | |
1234 | { | |
1235 | int need_hi22_p = 0; | |
1236 | int rd = (the_insn.opcode & RD (~0)) >> 25; | |
1237 | ||
1238 | if (the_insn.exp.X_op == O_constant) | |
1239 | { | |
1240 | if (SPARC_OPCODE_ARCH_V9_P (max_architecture)) | |
1241 | { | |
1242 | if (sizeof (offsetT) > 4 | |
1243 | && (the_insn.exp.X_add_number < 0 | |
1244 | || the_insn.exp.X_add_number > (offsetT) U0xffffffff)) | |
1245 | as_warn (_("set: number not in 0..4294967295 range")); | |
1246 | } | |
1247 | else | |
1248 | { | |
1249 | if (sizeof (offsetT) > 4 | |
1250 | && (the_insn.exp.X_add_number < -(offsetT) U0x80000000 | |
1251 | || the_insn.exp.X_add_number > (offsetT) U0xffffffff)) | |
1252 | as_warn (_("set: number not in -2147483648..4294967295 range")); | |
1253 | the_insn.exp.X_add_number = (int) the_insn.exp.X_add_number; | |
1254 | } | |
1255 | } | |
1256 | ||
1257 | /* See if operand is absolute and small; skip sethi if so. */ | |
1258 | if (the_insn.exp.X_op != O_constant | |
1259 | || the_insn.exp.X_add_number >= (1 << 12) | |
1260 | || the_insn.exp.X_add_number < -(1 << 12)) | |
1261 | { | |
1262 | the_insn.opcode = (SETHI_INSN | RD (rd) | |
1263 | | ((the_insn.exp.X_add_number >> 10) | |
1264 | & (the_insn.exp.X_op == O_constant | |
1265 | ? 0x3fffff : 0))); | |
1266 | the_insn.reloc = (the_insn.exp.X_op != O_constant | |
1267 | ? BFD_RELOC_HI22 : BFD_RELOC_NONE); | |
1268 | output_insn (insn, &the_insn); | |
1269 | need_hi22_p = 1; | |
1270 | } | |
1271 | ||
1272 | /* See if operand has no low-order bits; skip OR if so. */ | |
1273 | if (the_insn.exp.X_op != O_constant | |
1274 | || (need_hi22_p && (the_insn.exp.X_add_number & 0x3FF) != 0) | |
1275 | || ! need_hi22_p) | |
1276 | { | |
1277 | the_insn.opcode = (OR_INSN | (need_hi22_p ? RS1 (rd) : 0) | |
1278 | | RD (rd) | IMMED | |
1279 | | (the_insn.exp.X_add_number | |
1280 | & (the_insn.exp.X_op != O_constant | |
1281 | ? 0 : need_hi22_p ? 0x3ff : 0x1fff))); | |
1282 | the_insn.reloc = (the_insn.exp.X_op != O_constant | |
1283 | ? BFD_RELOC_LO10 : BFD_RELOC_NONE); | |
1284 | output_insn (insn, &the_insn); | |
1285 | } | |
1286 | } | |
1287 | ||
1288 | /* Handle the setsw synthetic instruction. */ | |
1289 | ||
1290 | static void | |
1291 | synthetize_setsw (const struct sparc_opcode *insn) | |
1292 | { | |
1293 | int low32, rd, opc; | |
1294 | ||
1295 | rd = (the_insn.opcode & RD (~0)) >> 25; | |
1296 | ||
1297 | if (the_insn.exp.X_op != O_constant) | |
1298 | { | |
1299 | synthetize_setuw (insn); | |
1300 | ||
1301 | /* Need to sign extend it. */ | |
1302 | the_insn.opcode = (SRA_INSN | RS1 (rd) | RD (rd)); | |
1303 | the_insn.reloc = BFD_RELOC_NONE; | |
1304 | output_insn (insn, &the_insn); | |
1305 | return; | |
1306 | } | |
1307 | ||
1308 | if (sizeof (offsetT) > 4 | |
1309 | && (the_insn.exp.X_add_number < -(offsetT) U0x80000000 | |
1310 | || the_insn.exp.X_add_number > (offsetT) U0xffffffff)) | |
1311 | as_warn (_("setsw: number not in -2147483648..4294967295 range")); | |
1312 | ||
1313 | low32 = the_insn.exp.X_add_number; | |
1314 | ||
1315 | if (low32 >= 0) | |
1316 | { | |
1317 | synthetize_setuw (insn); | |
1318 | return; | |
1319 | } | |
1320 | ||
1321 | opc = OR_INSN; | |
1322 | ||
1323 | the_insn.reloc = BFD_RELOC_NONE; | |
1324 | /* See if operand is absolute and small; skip sethi if so. */ | |
1325 | if (low32 < -(1 << 12)) | |
1326 | { | |
1327 | the_insn.opcode = (SETHI_INSN | RD (rd) | |
1328 | | (((~the_insn.exp.X_add_number) >> 10) & 0x3fffff)); | |
1329 | output_insn (insn, &the_insn); | |
1330 | low32 = 0x1c00 | (low32 & 0x3ff); | |
1331 | opc = RS1 (rd) | XOR_INSN; | |
1332 | } | |
1333 | ||
1334 | the_insn.opcode = (opc | RD (rd) | IMMED | |
1335 | | (low32 & 0x1fff)); | |
1336 | output_insn (insn, &the_insn); | |
1337 | } | |
1338 | ||
1339 | /* Handle the setx synthetic instruction. */ | |
1340 | ||
1341 | static void | |
1342 | synthetize_setx (const struct sparc_opcode *insn) | |
1343 | { | |
1344 | int upper32, lower32; | |
1345 | int tmpreg = (the_insn.opcode & RS1 (~0)) >> 14; | |
1346 | int dstreg = (the_insn.opcode & RD (~0)) >> 25; | |
1347 | int upper_dstreg; | |
1348 | int need_hh22_p = 0, need_hm10_p = 0, need_hi22_p = 0, need_lo10_p = 0; | |
1349 | int need_xor10_p = 0; | |
1350 | ||
1351 | #define SIGNEXT32(x) ((((x) & U0xffffffff) ^ U0x80000000) - U0x80000000) | |
1352 | lower32 = SIGNEXT32 (the_insn.exp.X_add_number); | |
1353 | upper32 = SIGNEXT32 (BSR (the_insn.exp.X_add_number, 32)); | |
1354 | #undef SIGNEXT32 | |
1355 | ||
1356 | upper_dstreg = tmpreg; | |
1357 | /* The tmp reg should not be the dst reg. */ | |
1358 | if (tmpreg == dstreg) | |
1359 | as_warn (_("setx: temporary register same as destination register")); | |
1360 | ||
1361 | /* ??? Obviously there are other optimizations we can do | |
1362 | (e.g. sethi+shift for 0x1f0000000) and perhaps we shouldn't be | |
1363 | doing some of these. Later. If you do change things, try to | |
1364 | change all of this to be table driven as well. */ | |
1365 | /* What to output depends on the number if it's constant. | |
1366 | Compute that first, then output what we've decided upon. */ | |
1367 | if (the_insn.exp.X_op != O_constant) | |
1368 | { | |
1369 | if (sparc_arch_size == 32) | |
1370 | { | |
1371 | /* When arch size is 32, we want setx to be equivalent | |
1372 | to setuw for anything but constants. */ | |
1373 | the_insn.exp.X_add_number &= 0xffffffff; | |
1374 | synthetize_setuw (insn); | |
1375 | return; | |
1376 | } | |
1377 | need_hh22_p = need_hm10_p = need_hi22_p = need_lo10_p = 1; | |
1378 | lower32 = 0; | |
1379 | upper32 = 0; | |
1380 | } | |
1381 | else | |
1382 | { | |
1383 | /* Reset X_add_number, we've extracted it as upper32/lower32. | |
1384 | Otherwise fixup_segment will complain about not being able to | |
1385 | write an 8 byte number in a 4 byte field. */ | |
1386 | the_insn.exp.X_add_number = 0; | |
1387 | ||
1388 | /* Only need hh22 if `or' insn can't handle constant. */ | |
1389 | if (upper32 < -(1 << 12) || upper32 >= (1 << 12)) | |
1390 | need_hh22_p = 1; | |
1391 | ||
1392 | /* Does bottom part (after sethi) have bits? */ | |
1393 | if ((need_hh22_p && (upper32 & 0x3ff) != 0) | |
1394 | /* No hh22, but does upper32 still have bits we can't set | |
1395 | from lower32? */ | |
1396 | || (! need_hh22_p && upper32 != 0 && upper32 != -1)) | |
1397 | need_hm10_p = 1; | |
1398 | ||
1399 | /* If the lower half is all zero, we build the upper half directly | |
1400 | into the dst reg. */ | |
1401 | if (lower32 != 0 | |
1402 | /* Need lower half if number is zero or 0xffffffff00000000. */ | |
1403 | || (! need_hh22_p && ! need_hm10_p)) | |
1404 | { | |
1405 | /* No need for sethi if `or' insn can handle constant. */ | |
1406 | if (lower32 < -(1 << 12) || lower32 >= (1 << 12) | |
1407 | /* Note that we can't use a negative constant in the `or' | |
1408 | insn unless the upper 32 bits are all ones. */ | |
1409 | || (lower32 < 0 && upper32 != -1) | |
1410 | || (lower32 >= 0 && upper32 == -1)) | |
1411 | need_hi22_p = 1; | |
1412 | ||
1413 | if (need_hi22_p && upper32 == -1) | |
1414 | need_xor10_p = 1; | |
1415 | ||
1416 | /* Does bottom part (after sethi) have bits? */ | |
1417 | else if ((need_hi22_p && (lower32 & 0x3ff) != 0) | |
1418 | /* No sethi. */ | |
1419 | || (! need_hi22_p && (lower32 & 0x1fff) != 0) | |
1420 | /* Need `or' if we didn't set anything else. */ | |
1421 | || (! need_hi22_p && ! need_hh22_p && ! need_hm10_p)) | |
1422 | need_lo10_p = 1; | |
1423 | } | |
1424 | else | |
1425 | /* Output directly to dst reg if lower 32 bits are all zero. */ | |
1426 | upper_dstreg = dstreg; | |
1427 | } | |
1428 | ||
1429 | if (!upper_dstreg && dstreg) | |
1430 | as_warn (_("setx: illegal temporary register g0")); | |
1431 | ||
1432 | if (need_hh22_p) | |
1433 | { | |
1434 | the_insn.opcode = (SETHI_INSN | RD (upper_dstreg) | |
1435 | | ((upper32 >> 10) & 0x3fffff)); | |
1436 | the_insn.reloc = (the_insn.exp.X_op != O_constant | |
1437 | ? BFD_RELOC_SPARC_HH22 : BFD_RELOC_NONE); | |
1438 | output_insn (insn, &the_insn); | |
1439 | } | |
1440 | ||
1441 | if (need_hi22_p) | |
1442 | { | |
1443 | the_insn.opcode = (SETHI_INSN | RD (dstreg) | |
1444 | | (((need_xor10_p ? ~lower32 : lower32) | |
1445 | >> 10) & 0x3fffff)); | |
1446 | the_insn.reloc = (the_insn.exp.X_op != O_constant | |
1447 | ? BFD_RELOC_SPARC_LM22 : BFD_RELOC_NONE); | |
1448 | output_insn (insn, &the_insn); | |
1449 | } | |
1450 | ||
1451 | if (need_hm10_p) | |
1452 | { | |
1453 | the_insn.opcode = (OR_INSN | |
1454 | | (need_hh22_p ? RS1 (upper_dstreg) : 0) | |
1455 | | RD (upper_dstreg) | |
1456 | | IMMED | |
1457 | | (upper32 & (need_hh22_p ? 0x3ff : 0x1fff))); | |
1458 | the_insn.reloc = (the_insn.exp.X_op != O_constant | |
1459 | ? BFD_RELOC_SPARC_HM10 : BFD_RELOC_NONE); | |
1460 | output_insn (insn, &the_insn); | |
1461 | } | |
1462 | ||
1463 | if (need_lo10_p) | |
1464 | { | |
1465 | /* FIXME: One nice optimization to do here is to OR the low part | |
1466 | with the highpart if hi22 isn't needed and the low part is | |
1467 | positive. */ | |
1468 | the_insn.opcode = (OR_INSN | (need_hi22_p ? RS1 (dstreg) : 0) | |
1469 | | RD (dstreg) | |
1470 | | IMMED | |
1471 | | (lower32 & (need_hi22_p ? 0x3ff : 0x1fff))); | |
1472 | the_insn.reloc = (the_insn.exp.X_op != O_constant | |
1473 | ? BFD_RELOC_LO10 : BFD_RELOC_NONE); | |
1474 | output_insn (insn, &the_insn); | |
1475 | } | |
1476 | ||
1477 | /* If we needed to build the upper part, shift it into place. */ | |
1478 | if (need_hh22_p || need_hm10_p) | |
1479 | { | |
1480 | the_insn.opcode = (SLLX_INSN | RS1 (upper_dstreg) | RD (upper_dstreg) | |
1481 | | IMMED | 32); | |
1482 | the_insn.reloc = BFD_RELOC_NONE; | |
1483 | output_insn (insn, &the_insn); | |
1484 | } | |
1485 | ||
1486 | /* To get -1 in upper32, we do sethi %hi(~x), r; xor r, -0x400 | x, r. */ | |
1487 | if (need_xor10_p) | |
1488 | { | |
1489 | the_insn.opcode = (XOR_INSN | RS1 (dstreg) | RD (dstreg) | IMMED | |
1490 | | 0x1c00 | (lower32 & 0x3ff)); | |
1491 | the_insn.reloc = BFD_RELOC_NONE; | |
1492 | output_insn (insn, &the_insn); | |
1493 | } | |
1494 | ||
1495 | /* If we needed to build both upper and lower parts, OR them together. */ | |
1496 | else if ((need_hh22_p || need_hm10_p) && (need_hi22_p || need_lo10_p)) | |
1497 | { | |
1498 | the_insn.opcode = (OR_INSN | RS1 (dstreg) | RS2 (upper_dstreg) | |
1499 | | RD (dstreg)); | |
1500 | the_insn.reloc = BFD_RELOC_NONE; | |
1501 | output_insn (insn, &the_insn); | |
1502 | } | |
1503 | } | |
1504 | \f | |
1505 | /* Main entry point to assemble one instruction. */ | |
1506 | ||
1507 | void | |
1508 | md_assemble (char *str) | |
1509 | { | |
1510 | const struct sparc_opcode *insn; | |
1511 | int special_case; | |
1512 | ||
1513 | know (str); | |
1514 | special_case = sparc_ip (str, &insn); | |
1515 | if (insn == NULL) | |
1516 | return; | |
1517 | ||
1518 | /* Certain instructions may not appear on delay slots. Check for | |
1519 | these situations. */ | |
1520 | if (last_insn != NULL | |
1521 | && (last_insn->flags & F_DELAYED) != 0) | |
1522 | { | |
1523 | /* Before SPARC V9 the effect of having a delayed branch | |
1524 | instruction in the delay slot of a conditional delayed branch | |
1525 | was undefined. | |
1526 | ||
1527 | In SPARC V9 DCTI couples are well defined. | |
1528 | ||
1529 | However, starting with the UltraSPARC Architecture 2005, DCTI | |
1530 | couples (of all kind) are deprecated and should not be used, | |
1531 | as they may be slow or behave differently to what the | |
1532 | programmer expects. */ | |
1533 | if (dcti_couples_detect | |
1534 | && (insn->flags & F_DELAYED) != 0 | |
1535 | && ((max_architecture < SPARC_OPCODE_ARCH_V9 | |
1536 | && (last_insn->flags & F_CONDBR) != 0) | |
1537 | || max_architecture >= SPARC_OPCODE_ARCH_V9C)) | |
1538 | as_warn (_("unpredictable DCTI couple")); | |
1539 | ||
1540 | ||
1541 | /* We warn about attempts to put a floating point branch in a | |
1542 | delay slot, unless the delay slot has been annulled. */ | |
1543 | if ((insn->flags & F_FBR) != 0 | |
1544 | /* ??? This test isn't completely accurate. We assume anything with | |
1545 | F_{UNBR,CONDBR,FBR} set is annullable. */ | |
1546 | && ((last_insn->flags & (F_UNBR | F_CONDBR | F_FBR)) == 0 | |
1547 | || (last_opcode & ANNUL) == 0)) | |
1548 | as_warn (_("FP branch in delay slot")); | |
1549 | } | |
1550 | ||
1551 | /* SPARC before v9 does not allow a floating point compare | |
1552 | directly before a floating point branch. Insert a nop | |
1553 | instruction if needed, with a warning. */ | |
1554 | if (max_architecture < SPARC_OPCODE_ARCH_V9 | |
1555 | && last_insn != NULL | |
1556 | && (insn->flags & F_FBR) != 0 | |
1557 | && (last_insn->flags & F_FLOAT) != 0 | |
1558 | && (last_insn->match & OP3 (0x35)) == OP3 (0x35)) | |
1559 | { | |
1560 | struct sparc_it nop_insn; | |
1561 | ||
1562 | nop_insn.opcode = NOP_INSN; | |
1563 | nop_insn.reloc = BFD_RELOC_NONE; | |
1564 | output_insn (insn, &nop_insn); | |
1565 | as_warn (_("FP branch preceded by FP compare; NOP inserted")); | |
1566 | } | |
1567 | ||
1568 | switch (special_case) | |
1569 | { | |
1570 | case SPECIAL_CASE_NONE: | |
1571 | /* Normal insn. */ | |
1572 | output_insn (insn, &the_insn); | |
1573 | break; | |
1574 | ||
1575 | case SPECIAL_CASE_SETSW: | |
1576 | synthetize_setsw (insn); | |
1577 | break; | |
1578 | ||
1579 | case SPECIAL_CASE_SET: | |
1580 | synthetize_setuw (insn); | |
1581 | break; | |
1582 | ||
1583 | case SPECIAL_CASE_SETX: | |
1584 | synthetize_setx (insn); | |
1585 | break; | |
1586 | ||
1587 | case SPECIAL_CASE_FDIV: | |
1588 | { | |
1589 | int rd = (the_insn.opcode >> 25) & 0x1f; | |
1590 | ||
1591 | output_insn (insn, &the_insn); | |
1592 | ||
1593 | /* According to information leaked from Sun, the "fdiv" instructions | |
1594 | on early SPARC machines would produce incorrect results sometimes. | |
1595 | The workaround is to add an fmovs of the destination register to | |
1596 | itself just after the instruction. This was true on machines | |
1597 | with Weitek 1165 float chips, such as the Sun-4/260 and /280. */ | |
1598 | gas_assert (the_insn.reloc == BFD_RELOC_NONE); | |
1599 | the_insn.opcode = FMOVS_INSN | rd | RD (rd); | |
1600 | output_insn (insn, &the_insn); | |
1601 | return; | |
1602 | } | |
1603 | ||
1604 | default: | |
1605 | as_fatal (_("failed special case insn sanity check")); | |
1606 | } | |
1607 | } | |
1608 | ||
1609 | static const char * | |
1610 | get_hwcap_name (uint64_t mask) | |
1611 | { | |
1612 | if (mask & HWCAP_MUL32) | |
1613 | return "mul32"; | |
1614 | if (mask & HWCAP_DIV32) | |
1615 | return "div32"; | |
1616 | if (mask & HWCAP_FSMULD) | |
1617 | return "fsmuld"; | |
1618 | if (mask & HWCAP_V8PLUS) | |
1619 | return "v8plus"; | |
1620 | if (mask & HWCAP_POPC) | |
1621 | return "popc"; | |
1622 | if (mask & HWCAP_VIS) | |
1623 | return "vis"; | |
1624 | if (mask & HWCAP_VIS2) | |
1625 | return "vis2"; | |
1626 | if (mask & HWCAP_ASI_BLK_INIT) | |
1627 | return "ASIBlkInit"; | |
1628 | if (mask & HWCAP_FMAF) | |
1629 | return "fmaf"; | |
1630 | if (mask & HWCAP_VIS3) | |
1631 | return "vis3"; | |
1632 | if (mask & HWCAP_HPC) | |
1633 | return "hpc"; | |
1634 | if (mask & HWCAP_RANDOM) | |
1635 | return "random"; | |
1636 | if (mask & HWCAP_TRANS) | |
1637 | return "trans"; | |
1638 | if (mask & HWCAP_FJFMAU) | |
1639 | return "fjfmau"; | |
1640 | if (mask & HWCAP_IMA) | |
1641 | return "ima"; | |
1642 | if (mask & HWCAP_ASI_CACHE_SPARING) | |
1643 | return "cspare"; | |
1644 | if (mask & HWCAP_AES) | |
1645 | return "aes"; | |
1646 | if (mask & HWCAP_DES) | |
1647 | return "des"; | |
1648 | if (mask & HWCAP_KASUMI) | |
1649 | return "kasumi"; | |
1650 | if (mask & HWCAP_CAMELLIA) | |
1651 | return "camellia"; | |
1652 | if (mask & HWCAP_MD5) | |
1653 | return "md5"; | |
1654 | if (mask & HWCAP_SHA1) | |
1655 | return "sha1"; | |
1656 | if (mask & HWCAP_SHA256) | |
1657 | return "sha256"; | |
1658 | if (mask & HWCAP_SHA512) | |
1659 | return "sha512"; | |
1660 | if (mask & HWCAP_MPMUL) | |
1661 | return "mpmul"; | |
1662 | if (mask & HWCAP_MONT) | |
1663 | return "mont"; | |
1664 | if (mask & HWCAP_PAUSE) | |
1665 | return "pause"; | |
1666 | if (mask & HWCAP_CBCOND) | |
1667 | return "cbcond"; | |
1668 | if (mask & HWCAP_CRC32C) | |
1669 | return "crc32c"; | |
1670 | ||
1671 | mask = mask >> 32; | |
1672 | if (mask & HWCAP2_FJATHPLUS) | |
1673 | return "fjathplus"; | |
1674 | if (mask & HWCAP2_VIS3B) | |
1675 | return "vis3b"; | |
1676 | if (mask & HWCAP2_ADP) | |
1677 | return "adp"; | |
1678 | if (mask & HWCAP2_SPARC5) | |
1679 | return "sparc5"; | |
1680 | if (mask & HWCAP2_MWAIT) | |
1681 | return "mwait"; | |
1682 | if (mask & HWCAP2_XMPMUL) | |
1683 | return "xmpmul"; | |
1684 | if (mask & HWCAP2_XMONT) | |
1685 | return "xmont"; | |
1686 | if (mask & HWCAP2_NSEC) | |
1687 | return "nsec"; | |
1688 | if (mask & HWCAP2_SPARC6) | |
1689 | return "sparc6"; | |
1690 | if (mask & HWCAP2_ONADDSUB) | |
1691 | return "onaddsub"; | |
1692 | if (mask & HWCAP2_ONMUL) | |
1693 | return "onmul"; | |
1694 | if (mask & HWCAP2_ONDIV) | |
1695 | return "ondiv"; | |
1696 | if (mask & HWCAP2_DICTUNP) | |
1697 | return "dictunp"; | |
1698 | if (mask & HWCAP2_FPCMPSHL) | |
1699 | return "fpcmpshl"; | |
1700 | if (mask & HWCAP2_RLE) | |
1701 | return "rle"; | |
1702 | if (mask & HWCAP2_SHA3) | |
1703 | return "sha3"; | |
1704 | ||
1705 | return "UNKNOWN"; | |
1706 | } | |
1707 | ||
1708 | /* Subroutine of md_assemble to do the actual parsing. */ | |
1709 | ||
1710 | static int | |
1711 | sparc_ip (char *str, const struct sparc_opcode **pinsn) | |
1712 | { | |
1713 | const char *error_message = ""; | |
1714 | char *s; | |
1715 | const char *args; | |
1716 | char c; | |
1717 | const struct sparc_opcode *insn; | |
1718 | char *argsStart; | |
1719 | unsigned long opcode; | |
1720 | unsigned int mask = 0; | |
1721 | int match = 0; | |
1722 | int comma = 0; | |
1723 | int v9_arg_p; | |
1724 | int special_case = SPECIAL_CASE_NONE; | |
1725 | const sparc_asi *sasi = NULL; | |
1726 | ||
1727 | s = str; | |
1728 | if (ISLOWER (*s)) | |
1729 | { | |
1730 | do | |
1731 | ++s; | |
1732 | while (ISLOWER (*s) || ISDIGIT (*s) || *s == '_'); | |
1733 | } | |
1734 | ||
1735 | switch (*s) | |
1736 | { | |
1737 | case '\0': | |
1738 | break; | |
1739 | ||
1740 | case ',': | |
1741 | comma = 1; | |
1742 | /* Fall through. */ | |
1743 | ||
1744 | case ' ': | |
1745 | *s++ = '\0'; | |
1746 | break; | |
1747 | ||
1748 | default: | |
1749 | as_bad (_("Unknown opcode: `%s'"), str); | |
1750 | *pinsn = NULL; | |
1751 | return special_case; | |
1752 | } | |
1753 | insn = (struct sparc_opcode *) str_hash_find (op_hash, str); | |
1754 | *pinsn = insn; | |
1755 | if (insn == NULL) | |
1756 | { | |
1757 | as_bad (_("Unknown opcode: `%s'"), str); | |
1758 | return special_case; | |
1759 | } | |
1760 | if (comma) | |
1761 | { | |
1762 | *--s = ','; | |
1763 | } | |
1764 | ||
1765 | argsStart = s; | |
1766 | for (;;) | |
1767 | { | |
1768 | opcode = insn->match; | |
1769 | memset (&the_insn, '\0', sizeof (the_insn)); | |
1770 | the_insn.reloc = BFD_RELOC_NONE; | |
1771 | v9_arg_p = 0; | |
1772 | ||
1773 | /* Build the opcode, checking as we go to make sure that the | |
1774 | operands match. */ | |
1775 | for (args = insn->args;; ++args) | |
1776 | { | |
1777 | switch (*args) | |
1778 | { | |
1779 | case 'K': | |
1780 | { | |
1781 | int kmask = 0; | |
1782 | ||
1783 | /* Parse a series of masks. */ | |
1784 | if (*s == '#') | |
1785 | { | |
1786 | while (*s == '#') | |
1787 | { | |
1788 | int jmask; | |
1789 | ||
1790 | if (! parse_keyword_arg (sparc_encode_membar, &s, | |
1791 | &jmask)) | |
1792 | { | |
1793 | error_message = _(": invalid membar mask name"); | |
1794 | goto error; | |
1795 | } | |
1796 | kmask |= jmask; | |
1797 | while (*s == ' ') | |
1798 | ++s; | |
1799 | if (*s == '|' || *s == '+') | |
1800 | ++s; | |
1801 | while (*s == ' ') | |
1802 | ++s; | |
1803 | } | |
1804 | } | |
1805 | else | |
1806 | { | |
1807 | if (! parse_const_expr_arg (&s, &kmask)) | |
1808 | { | |
1809 | error_message = _(": invalid membar mask expression"); | |
1810 | goto error; | |
1811 | } | |
1812 | if (kmask < 0 || kmask > 127) | |
1813 | { | |
1814 | error_message = _(": invalid membar mask number"); | |
1815 | goto error; | |
1816 | } | |
1817 | } | |
1818 | ||
1819 | opcode |= MEMBAR (kmask); | |
1820 | continue; | |
1821 | } | |
1822 | ||
1823 | case '3': | |
1824 | { | |
1825 | int smask = 0; | |
1826 | ||
1827 | if (! parse_const_expr_arg (&s, &smask)) | |
1828 | { | |
1829 | error_message = _(": invalid siam mode expression"); | |
1830 | goto error; | |
1831 | } | |
1832 | if (smask < 0 || smask > 7) | |
1833 | { | |
1834 | error_message = _(": invalid siam mode number"); | |
1835 | goto error; | |
1836 | } | |
1837 | opcode |= smask; | |
1838 | continue; | |
1839 | } | |
1840 | ||
1841 | case '*': | |
1842 | { | |
1843 | int fcn = 0; | |
1844 | ||
1845 | /* Parse a prefetch function. */ | |
1846 | if (*s == '#') | |
1847 | { | |
1848 | if (! parse_keyword_arg (sparc_encode_prefetch, &s, &fcn)) | |
1849 | { | |
1850 | error_message = _(": invalid prefetch function name"); | |
1851 | goto error; | |
1852 | } | |
1853 | } | |
1854 | else | |
1855 | { | |
1856 | if (! parse_const_expr_arg (&s, &fcn)) | |
1857 | { | |
1858 | error_message = _(": invalid prefetch function expression"); | |
1859 | goto error; | |
1860 | } | |
1861 | if (fcn < 0 || fcn > 31) | |
1862 | { | |
1863 | error_message = _(": invalid prefetch function number"); | |
1864 | goto error; | |
1865 | } | |
1866 | } | |
1867 | opcode |= RD (fcn); | |
1868 | continue; | |
1869 | } | |
1870 | ||
1871 | case '!': | |
1872 | case '?': | |
1873 | /* Parse a sparc64 privileged register. */ | |
1874 | if (*s == '%') | |
1875 | { | |
1876 | struct priv_reg_entry *p; | |
1877 | unsigned int len = 9999999; /* Init to make gcc happy. */ | |
1878 | ||
1879 | s += 1; | |
1880 | for (p = priv_reg_table; p->name; p++) | |
1881 | if (p->name[0] == s[0]) | |
1882 | { | |
1883 | len = strlen (p->name); | |
1884 | if (strncmp (p->name, s, len) == 0) | |
1885 | break; | |
1886 | } | |
1887 | ||
1888 | if (!p->name) | |
1889 | { | |
1890 | error_message = _(": unrecognizable privileged register"); | |
1891 | goto error; | |
1892 | } | |
1893 | ||
1894 | if (((opcode >> (*args == '?' ? 14 : 25)) & 0x1f) != (unsigned) p->regnum) | |
1895 | { | |
1896 | error_message = _(": unrecognizable privileged register"); | |
1897 | goto error; | |
1898 | } | |
1899 | ||
1900 | s += len; | |
1901 | continue; | |
1902 | } | |
1903 | else | |
1904 | { | |
1905 | error_message = _(": unrecognizable privileged register"); | |
1906 | goto error; | |
1907 | } | |
1908 | ||
1909 | case '$': | |
1910 | case '%': | |
1911 | /* Parse a sparc64 hyperprivileged register. */ | |
1912 | if (*s == '%') | |
1913 | { | |
1914 | struct priv_reg_entry *p; | |
1915 | unsigned int len = 9999999; /* Init to make gcc happy. */ | |
1916 | ||
1917 | s += 1; | |
1918 | for (p = hpriv_reg_table; p->name; p++) | |
1919 | if (p->name[0] == s[0]) | |
1920 | { | |
1921 | len = strlen (p->name); | |
1922 | if (strncmp (p->name, s, len) == 0) | |
1923 | break; | |
1924 | } | |
1925 | ||
1926 | if (!p->name) | |
1927 | { | |
1928 | error_message = _(": unrecognizable hyperprivileged register"); | |
1929 | goto error; | |
1930 | } | |
1931 | ||
1932 | if (((opcode >> (*args == '$' ? 14 : 25)) & 0x1f) != (unsigned) p->regnum) | |
1933 | { | |
1934 | error_message = _(": unrecognizable hyperprivileged register"); | |
1935 | goto error; | |
1936 | } | |
1937 | ||
1938 | s += len; | |
1939 | continue; | |
1940 | } | |
1941 | else | |
1942 | { | |
1943 | error_message = _(": unrecognizable hyperprivileged register"); | |
1944 | goto error; | |
1945 | } | |
1946 | ||
1947 | case '_': | |
1948 | case '/': | |
1949 | /* Parse a v9a or later ancillary state register. */ | |
1950 | if (*s == '%') | |
1951 | { | |
1952 | struct priv_reg_entry *p; | |
1953 | unsigned int len = 9999999; /* Init to make gcc happy. */ | |
1954 | ||
1955 | s += 1; | |
1956 | for (p = v9a_asr_table; p->name; p++) | |
1957 | if (p->name[0] == s[0]) | |
1958 | { | |
1959 | len = strlen (p->name); | |
1960 | if (strncmp (p->name, s, len) == 0) | |
1961 | break; | |
1962 | } | |
1963 | ||
1964 | if (!p->name) | |
1965 | { | |
1966 | error_message = _(": unrecognizable ancillary state register"); | |
1967 | goto error; | |
1968 | } | |
1969 | ||
1970 | if (((opcode >> (*args == '/' ? 14 : 25)) & 0x1f) != (unsigned) p->regnum) | |
1971 | { | |
1972 | error_message = _(": unrecognizable ancillary state register"); | |
1973 | goto error; | |
1974 | } | |
1975 | ||
1976 | s += len; | |
1977 | continue; | |
1978 | } | |
1979 | else | |
1980 | { | |
1981 | error_message = _(": unrecognizable ancillary state register"); | |
1982 | goto error; | |
1983 | } | |
1984 | ||
1985 | case 'M': | |
1986 | case 'm': | |
1987 | if (startswith (s, "%asr")) | |
1988 | { | |
1989 | s += 4; | |
1990 | ||
1991 | if (ISDIGIT (*s)) | |
1992 | { | |
1993 | long num = 0; | |
1994 | ||
1995 | while (ISDIGIT (*s)) | |
1996 | { | |
1997 | num = num * 10 + *s - '0'; | |
1998 | ++s; | |
1999 | } | |
2000 | ||
2001 | /* We used to check here for the asr number to | |
2002 | be between 16 and 31 in V9 and later, as | |
2003 | mandated by the section C.1.1 "Register | |
2004 | Names" in the SPARC spec. However, we | |
2005 | decided to remove this restriction as a) it | |
2006 | introduces problems when new V9 asr registers | |
2007 | are introduced, b) the Solaris assembler | |
2008 | doesn't implement this restriction and c) the | |
2009 | restriction will go away in future revisions | |
2010 | of the Oracle SPARC Architecture. */ | |
2011 | ||
2012 | if (num < 0 || 31 < num) | |
2013 | { | |
2014 | error_message = _(": asr number must be between 0 and 31"); | |
2015 | goto error; | |
2016 | } | |
2017 | ||
2018 | opcode |= (*args == 'M' ? RS1 (num) : RD (num)); | |
2019 | continue; | |
2020 | } | |
2021 | else | |
2022 | { | |
2023 | error_message = _(": expecting %asrN"); | |
2024 | goto error; | |
2025 | } | |
2026 | } /* if %asr */ | |
2027 | break; | |
2028 | ||
2029 | case 'I': | |
2030 | the_insn.reloc = BFD_RELOC_SPARC_11; | |
2031 | goto immediate; | |
2032 | ||
2033 | case 'j': | |
2034 | the_insn.reloc = BFD_RELOC_SPARC_10; | |
2035 | goto immediate; | |
2036 | ||
2037 | case ')': | |
2038 | if (*s == ' ') | |
2039 | s++; | |
2040 | if ((s[0] == '0' && s[1] == 'x' && ISXDIGIT (s[2])) | |
2041 | || ISDIGIT (*s)) | |
2042 | { | |
2043 | long num = 0; | |
2044 | ||
2045 | if (s[0] == '0' && s[1] == 'x') | |
2046 | { | |
2047 | s += 2; | |
2048 | while (ISXDIGIT (*s)) | |
2049 | { | |
2050 | num <<= 4; | |
2051 | num |= hex_value (*s); | |
2052 | ++s; | |
2053 | } | |
2054 | } | |
2055 | else | |
2056 | { | |
2057 | while (ISDIGIT (*s)) | |
2058 | { | |
2059 | num = num * 10 + *s - '0'; | |
2060 | ++s; | |
2061 | } | |
2062 | } | |
2063 | if (num < 0 || num > 31) | |
2064 | { | |
2065 | error_message = _(": crypto immediate must be between 0 and 31"); | |
2066 | goto error; | |
2067 | } | |
2068 | ||
2069 | opcode |= RS3 (num); | |
2070 | continue; | |
2071 | } | |
2072 | else | |
2073 | { | |
2074 | error_message = _(": expecting crypto immediate"); | |
2075 | goto error; | |
2076 | } | |
2077 | ||
2078 | case 'X': | |
2079 | /* V8 systems don't understand BFD_RELOC_SPARC_5. */ | |
2080 | if (SPARC_OPCODE_ARCH_V9_P (max_architecture)) | |
2081 | the_insn.reloc = BFD_RELOC_SPARC_5; | |
2082 | else | |
2083 | the_insn.reloc = BFD_RELOC_SPARC13; | |
2084 | /* These fields are unsigned, but for upward compatibility, | |
2085 | allow negative values as well. */ | |
2086 | goto immediate; | |
2087 | ||
2088 | case 'Y': | |
2089 | /* V8 systems don't understand BFD_RELOC_SPARC_6. */ | |
2090 | if (SPARC_OPCODE_ARCH_V9_P (max_architecture)) | |
2091 | the_insn.reloc = BFD_RELOC_SPARC_6; | |
2092 | else | |
2093 | the_insn.reloc = BFD_RELOC_SPARC13; | |
2094 | /* These fields are unsigned, but for upward compatibility, | |
2095 | allow negative values as well. */ | |
2096 | goto immediate; | |
2097 | ||
2098 | case 'k': | |
2099 | the_insn.reloc = /* RELOC_WDISP2_14 */ BFD_RELOC_SPARC_WDISP16; | |
2100 | the_insn.pcrel = 1; | |
2101 | goto immediate; | |
2102 | ||
2103 | case '=': | |
2104 | the_insn.reloc = /* RELOC_WDISP2_8 */ BFD_RELOC_SPARC_WDISP10; | |
2105 | the_insn.pcrel = 1; | |
2106 | goto immediate; | |
2107 | ||
2108 | case 'G': | |
2109 | the_insn.reloc = BFD_RELOC_SPARC_WDISP19; | |
2110 | the_insn.pcrel = 1; | |
2111 | goto immediate; | |
2112 | ||
2113 | case 'N': | |
2114 | if (*s == 'p' && s[1] == 'n') | |
2115 | { | |
2116 | s += 2; | |
2117 | continue; | |
2118 | } | |
2119 | break; | |
2120 | ||
2121 | case 'T': | |
2122 | if (*s == 'p' && s[1] == 't') | |
2123 | { | |
2124 | s += 2; | |
2125 | continue; | |
2126 | } | |
2127 | break; | |
2128 | ||
2129 | case 'z': | |
2130 | if (*s == ' ') | |
2131 | { | |
2132 | ++s; | |
2133 | } | |
2134 | if ((startswith (s, "%icc")) | |
2135 | || (sparc_arch_size == 32 && startswith (s, "%ncc"))) | |
2136 | { | |
2137 | s += 4; | |
2138 | continue; | |
2139 | } | |
2140 | break; | |
2141 | ||
2142 | case 'Z': | |
2143 | if (*s == ' ') | |
2144 | { | |
2145 | ++s; | |
2146 | } | |
2147 | if ((startswith (s, "%xcc")) | |
2148 | || (sparc_arch_size == 64 && startswith (s, "%ncc"))) | |
2149 | { | |
2150 | s += 4; | |
2151 | continue; | |
2152 | } | |
2153 | break; | |
2154 | ||
2155 | case '6': | |
2156 | if (*s == ' ') | |
2157 | { | |
2158 | ++s; | |
2159 | } | |
2160 | if (startswith (s, "%fcc0")) | |
2161 | { | |
2162 | s += 5; | |
2163 | continue; | |
2164 | } | |
2165 | break; | |
2166 | ||
2167 | case '7': | |
2168 | if (*s == ' ') | |
2169 | { | |
2170 | ++s; | |
2171 | } | |
2172 | if (startswith (s, "%fcc1")) | |
2173 | { | |
2174 | s += 5; | |
2175 | continue; | |
2176 | } | |
2177 | break; | |
2178 | ||
2179 | case '8': | |
2180 | if (*s == ' ') | |
2181 | { | |
2182 | ++s; | |
2183 | } | |
2184 | if (startswith (s, "%fcc2")) | |
2185 | { | |
2186 | s += 5; | |
2187 | continue; | |
2188 | } | |
2189 | break; | |
2190 | ||
2191 | case '9': | |
2192 | if (*s == ' ') | |
2193 | { | |
2194 | ++s; | |
2195 | } | |
2196 | if (startswith (s, "%fcc3")) | |
2197 | { | |
2198 | s += 5; | |
2199 | continue; | |
2200 | } | |
2201 | break; | |
2202 | ||
2203 | case 'P': | |
2204 | if (startswith (s, "%pc")) | |
2205 | { | |
2206 | s += 3; | |
2207 | continue; | |
2208 | } | |
2209 | break; | |
2210 | ||
2211 | case 'W': | |
2212 | if (startswith (s, "%tick")) | |
2213 | { | |
2214 | s += 5; | |
2215 | continue; | |
2216 | } | |
2217 | break; | |
2218 | ||
2219 | case '\0': /* End of args. */ | |
2220 | if (s[0] == ',' && s[1] == '%') | |
2221 | { | |
2222 | char *s1; | |
2223 | int npar = 0; | |
2224 | const struct perc_entry *p; | |
2225 | ||
2226 | for (p = perc_table; p->type != perc_entry_none; p++) | |
2227 | if ((p->type == perc_entry_post_pop || p->type == perc_entry_reg) | |
2228 | && strncmp (s + 2, p->name, p->len) == 0) | |
2229 | break; | |
2230 | if (p->type == perc_entry_none || p->type == perc_entry_reg) | |
2231 | break; | |
2232 | ||
2233 | if (s[p->len + 2] != '(') | |
2234 | { | |
2235 | as_bad (_("Illegal operands: %%%s requires arguments in ()"), p->name); | |
2236 | return special_case; | |
2237 | } | |
2238 | ||
2239 | if (! (p->pop->flags & F_POP_TLS_CALL) | |
2240 | && the_insn.reloc != BFD_RELOC_NONE) | |
2241 | { | |
2242 | as_bad (_("Illegal operands: %%%s cannot be used together with other relocs in the insn ()"), | |
2243 | p->name); | |
2244 | return special_case; | |
2245 | } | |
2246 | ||
2247 | if ((p->pop->flags & F_POP_TLS_CALL) | |
2248 | && (the_insn.reloc != BFD_RELOC_32_PCREL_S2 | |
2249 | || the_insn.exp.X_add_number != 0 | |
2250 | || the_insn.exp.X_add_symbol | |
2251 | != symbol_find_or_make ("__tls_get_addr"))) | |
2252 | { | |
2253 | as_bad (_("Illegal operands: %%%s can be only used with call __tls_get_addr"), | |
2254 | p->name); | |
2255 | return special_case; | |
2256 | } | |
2257 | ||
2258 | the_insn.reloc = p->pop->reloc; | |
2259 | memset (&the_insn.exp, 0, sizeof (the_insn.exp)); | |
2260 | s += p->len + 3; | |
2261 | ||
2262 | for (s1 = s; *s1 && *s1 != ',' && *s1 != ']'; s1++) | |
2263 | if (*s1 == '(') | |
2264 | npar++; | |
2265 | else if (*s1 == ')') | |
2266 | { | |
2267 | if (!npar) | |
2268 | break; | |
2269 | npar--; | |
2270 | } | |
2271 | ||
2272 | if (*s1 != ')') | |
2273 | { | |
2274 | as_bad (_("Illegal operands: %%%s requires arguments in ()"), p->name); | |
2275 | return special_case; | |
2276 | } | |
2277 | ||
2278 | *s1 = '\0'; | |
2279 | (void) get_expression (s); | |
2280 | *s1 = ')'; | |
2281 | s = s1 + 1; | |
2282 | } | |
2283 | if (*s == '\0') | |
2284 | match = 1; | |
2285 | break; | |
2286 | ||
2287 | case '+': | |
2288 | if (*s == '+') | |
2289 | { | |
2290 | ++s; | |
2291 | continue; | |
2292 | } | |
2293 | if (*s == '-') | |
2294 | { | |
2295 | continue; | |
2296 | } | |
2297 | break; | |
2298 | ||
2299 | case '[': /* These must match exactly. */ | |
2300 | case ']': | |
2301 | case ',': | |
2302 | case ' ': | |
2303 | if (*s++ == *args) | |
2304 | continue; | |
2305 | break; | |
2306 | ||
2307 | case '#': /* Must be at least one digit. */ | |
2308 | if (ISDIGIT (*s++)) | |
2309 | { | |
2310 | while (ISDIGIT (*s)) | |
2311 | { | |
2312 | ++s; | |
2313 | } | |
2314 | continue; | |
2315 | } | |
2316 | break; | |
2317 | ||
2318 | case 'C': /* Coprocessor state register. */ | |
2319 | if (startswith (s, "%csr")) | |
2320 | { | |
2321 | s += 4; | |
2322 | continue; | |
2323 | } | |
2324 | break; | |
2325 | ||
2326 | case 'b': /* Next operand is a coprocessor register. */ | |
2327 | case 'c': | |
2328 | case 'D': | |
2329 | if (*s++ == '%' && *s++ == 'c' && ISDIGIT (*s)) | |
2330 | { | |
2331 | mask = *s++; | |
2332 | if (ISDIGIT (*s)) | |
2333 | { | |
2334 | mask = 10 * (mask - '0') + (*s++ - '0'); | |
2335 | if (mask >= 32) | |
2336 | { | |
2337 | break; | |
2338 | } | |
2339 | } | |
2340 | else | |
2341 | { | |
2342 | mask -= '0'; | |
2343 | } | |
2344 | switch (*args) | |
2345 | { | |
2346 | ||
2347 | case 'b': | |
2348 | opcode |= mask << 14; | |
2349 | continue; | |
2350 | ||
2351 | case 'c': | |
2352 | opcode |= mask; | |
2353 | continue; | |
2354 | ||
2355 | case 'D': | |
2356 | opcode |= mask << 25; | |
2357 | continue; | |
2358 | } | |
2359 | } | |
2360 | break; | |
2361 | ||
2362 | case 'r': /* next operand must be a register */ | |
2363 | case 'O': | |
2364 | case '1': | |
2365 | case '2': | |
2366 | case 'd': | |
2367 | if (*s++ == '%') | |
2368 | { | |
2369 | switch (c = *s++) | |
2370 | { | |
2371 | ||
2372 | case 'f': /* frame pointer */ | |
2373 | if (*s++ == 'p') | |
2374 | { | |
2375 | mask = 0x1e; | |
2376 | break; | |
2377 | } | |
2378 | goto error; | |
2379 | ||
2380 | case 'g': /* global register */ | |
2381 | c = *s++; | |
2382 | if (isoctal (c)) | |
2383 | { | |
2384 | mask = c - '0'; | |
2385 | break; | |
2386 | } | |
2387 | goto error; | |
2388 | ||
2389 | case 'i': /* in register */ | |
2390 | c = *s++; | |
2391 | if (isoctal (c)) | |
2392 | { | |
2393 | mask = c - '0' + 24; | |
2394 | break; | |
2395 | } | |
2396 | goto error; | |
2397 | ||
2398 | case 'l': /* local register */ | |
2399 | c = *s++; | |
2400 | if (isoctal (c)) | |
2401 | { | |
2402 | mask = (c - '0' + 16); | |
2403 | break; | |
2404 | } | |
2405 | goto error; | |
2406 | ||
2407 | case 'o': /* out register */ | |
2408 | c = *s++; | |
2409 | if (isoctal (c)) | |
2410 | { | |
2411 | mask = (c - '0' + 8); | |
2412 | break; | |
2413 | } | |
2414 | goto error; | |
2415 | ||
2416 | case 's': /* stack pointer */ | |
2417 | if (*s++ == 'p') | |
2418 | { | |
2419 | mask = 0xe; | |
2420 | break; | |
2421 | } | |
2422 | goto error; | |
2423 | ||
2424 | case 'r': /* any register */ | |
2425 | if (!ISDIGIT ((c = *s++))) | |
2426 | { | |
2427 | goto error; | |
2428 | } | |
2429 | /* FALLTHROUGH */ | |
2430 | case '0': | |
2431 | case '1': | |
2432 | case '2': | |
2433 | case '3': | |
2434 | case '4': | |
2435 | case '5': | |
2436 | case '6': | |
2437 | case '7': | |
2438 | case '8': | |
2439 | case '9': | |
2440 | if (ISDIGIT (*s)) | |
2441 | { | |
2442 | if ((c = 10 * (c - '0') + (*s++ - '0')) >= 32) | |
2443 | { | |
2444 | goto error; | |
2445 | } | |
2446 | } | |
2447 | else | |
2448 | { | |
2449 | c -= '0'; | |
2450 | } | |
2451 | mask = c; | |
2452 | break; | |
2453 | ||
2454 | default: | |
2455 | goto error; | |
2456 | } | |
2457 | ||
2458 | if ((mask & ~1) == 2 && sparc_arch_size == 64 | |
2459 | && no_undeclared_regs && ! globals[mask]) | |
2460 | as_bad (_("detected global register use not covered by .register pseudo-op")); | |
2461 | ||
2462 | /* Got the register, now figure out where | |
2463 | it goes in the opcode. */ | |
2464 | switch (*args) | |
2465 | { | |
2466 | case '1': | |
2467 | opcode |= mask << 14; | |
2468 | continue; | |
2469 | ||
2470 | case '2': | |
2471 | opcode |= mask; | |
2472 | continue; | |
2473 | ||
2474 | case 'd': | |
2475 | opcode |= mask << 25; | |
2476 | continue; | |
2477 | ||
2478 | case 'r': | |
2479 | opcode |= (mask << 25) | (mask << 14); | |
2480 | continue; | |
2481 | ||
2482 | case 'O': | |
2483 | opcode |= (mask << 25) | (mask << 0); | |
2484 | continue; | |
2485 | } | |
2486 | } | |
2487 | break; | |
2488 | ||
2489 | case 'e': /* next operand is a floating point register */ | |
2490 | case 'v': | |
2491 | case 'V': | |
2492 | case ';': | |
2493 | ||
2494 | case 'f': | |
2495 | case 'B': | |
2496 | case 'R': | |
2497 | case ':': | |
2498 | case '\'': | |
2499 | ||
2500 | case '4': | |
2501 | case '5': | |
2502 | ||
2503 | case 'g': | |
2504 | case 'H': | |
2505 | case 'J': | |
2506 | case '}': | |
2507 | case '^': | |
2508 | { | |
2509 | char format; | |
2510 | ||
2511 | if (*s++ == '%' | |
2512 | && ((format = *s) == 'f' | |
2513 | || format == 'd' | |
2514 | || format == 'q') | |
2515 | && ISDIGIT (*++s)) | |
2516 | { | |
2517 | for (mask = 0; ISDIGIT (*s); ++s) | |
2518 | { | |
2519 | mask = 10 * mask + (*s - '0'); | |
2520 | } /* read the number */ | |
2521 | ||
2522 | if ((*args == 'v' | |
2523 | || *args == 'B' | |
2524 | || *args == '5' | |
2525 | || *args == 'H' | |
2526 | || *args == '\'' | |
2527 | || format == 'd') | |
2528 | && (mask & 1)) | |
2529 | { | |
2530 | /* register must be even numbered */ | |
2531 | break; | |
2532 | } | |
2533 | ||
2534 | if ((*args == 'V' | |
2535 | || *args == 'R' | |
2536 | || *args == 'J' | |
2537 | || format == 'q') | |
2538 | && (mask & 3)) | |
2539 | { | |
2540 | /* register must be multiple of 4 */ | |
2541 | break; | |
2542 | } | |
2543 | ||
2544 | if ((*args == ':' | |
2545 | || *args == ';' | |
2546 | || *args == '^') | |
2547 | && (mask & 7)) | |
2548 | { | |
2549 | /* register must be multiple of 8 */ | |
2550 | break; | |
2551 | } | |
2552 | ||
2553 | if (*args == '\'' && mask < 48) | |
2554 | { | |
2555 | /* register must be higher or equal than %f48 */ | |
2556 | break; | |
2557 | } | |
2558 | ||
2559 | if (mask >= 64) | |
2560 | { | |
2561 | if (SPARC_OPCODE_ARCH_V9_P (max_architecture)) | |
2562 | error_message = _(": There are only 64 f registers; [0-63]"); | |
2563 | else | |
2564 | error_message = _(": There are only 32 f registers; [0-31]"); | |
2565 | goto error; | |
2566 | } /* on error */ | |
2567 | else if (mask >= 32) | |
2568 | { | |
2569 | if (SPARC_OPCODE_ARCH_V9_P (max_architecture)) | |
2570 | { | |
2571 | if (*args == 'e' || *args == 'f' || *args == 'g') | |
2572 | { | |
2573 | error_message | |
2574 | = _(": There are only 32 single precision f registers; [0-31]"); | |
2575 | goto error; | |
2576 | } | |
2577 | v9_arg_p = 1; | |
2578 | mask -= 31; /* wrap high bit */ | |
2579 | } | |
2580 | else | |
2581 | { | |
2582 | error_message = _(": There are only 32 f registers; [0-31]"); | |
2583 | goto error; | |
2584 | } | |
2585 | } | |
2586 | } | |
2587 | else | |
2588 | { | |
2589 | break; | |
2590 | } /* if not an 'f' register. */ | |
2591 | ||
2592 | if (*args == '}' && mask != RS2 (opcode)) | |
2593 | { | |
2594 | error_message | |
2595 | = _(": Instruction requires frs2 and frsd must be the same register"); | |
2596 | goto error; | |
2597 | } | |
2598 | ||
2599 | switch (*args) | |
2600 | { | |
2601 | case 'v': | |
2602 | case 'V': | |
2603 | case 'e': | |
2604 | case ';': | |
2605 | opcode |= RS1 (mask); | |
2606 | continue; | |
2607 | ||
2608 | case 'f': | |
2609 | case 'B': | |
2610 | case 'R': | |
2611 | case ':': | |
2612 | opcode |= RS2 (mask); | |
2613 | continue; | |
2614 | ||
2615 | case '\'': | |
2616 | opcode |= RS2 (mask & 0xe); | |
2617 | continue; | |
2618 | ||
2619 | case '4': | |
2620 | case '5': | |
2621 | opcode |= RS3 (mask); | |
2622 | continue; | |
2623 | ||
2624 | case 'g': | |
2625 | case 'H': | |
2626 | case 'J': | |
2627 | case '}': | |
2628 | case '^': | |
2629 | opcode |= RD (mask); | |
2630 | continue; | |
2631 | } /* Pack it in. */ | |
2632 | ||
2633 | know (0); | |
2634 | break; | |
2635 | } /* float arg */ | |
2636 | ||
2637 | case 'F': | |
2638 | if (startswith (s, "%fsr")) | |
2639 | { | |
2640 | s += 4; | |
2641 | continue; | |
2642 | } | |
2643 | break; | |
2644 | ||
2645 | case '(': | |
2646 | if (startswith (s, "%efsr")) | |
2647 | { | |
2648 | s += 5; | |
2649 | continue; | |
2650 | } | |
2651 | break; | |
2652 | ||
2653 | case '0': /* 64 bit immediate (set, setsw, setx insn) */ | |
2654 | the_insn.reloc = BFD_RELOC_NONE; /* reloc handled elsewhere */ | |
2655 | goto immediate; | |
2656 | ||
2657 | case 'l': /* 22 bit PC relative immediate */ | |
2658 | the_insn.reloc = BFD_RELOC_SPARC_WDISP22; | |
2659 | the_insn.pcrel = 1; | |
2660 | goto immediate; | |
2661 | ||
2662 | case 'L': /* 30 bit immediate */ | |
2663 | the_insn.reloc = BFD_RELOC_32_PCREL_S2; | |
2664 | the_insn.pcrel = 1; | |
2665 | goto immediate; | |
2666 | ||
2667 | case 'h': | |
2668 | case 'n': /* 22 bit immediate */ | |
2669 | the_insn.reloc = BFD_RELOC_SPARC22; | |
2670 | goto immediate; | |
2671 | ||
2672 | case 'i': /* 13 bit immediate */ | |
2673 | the_insn.reloc = BFD_RELOC_SPARC13; | |
2674 | ||
2675 | /* fallthrough */ | |
2676 | ||
2677 | immediate: | |
2678 | if (*s == ' ') | |
2679 | s++; | |
2680 | ||
2681 | { | |
2682 | char *s1; | |
2683 | const char *op_arg = NULL; | |
2684 | static expressionS op_exp; | |
2685 | bfd_reloc_code_real_type old_reloc = the_insn.reloc; | |
2686 | ||
2687 | /* Check for %hi, etc. */ | |
2688 | if (*s == '%') | |
2689 | { | |
2690 | const struct perc_entry *p; | |
2691 | ||
2692 | for (p = perc_table; p->type != perc_entry_none; p++) | |
2693 | if ((p->type == perc_entry_imm_pop || p->type == perc_entry_reg) | |
2694 | && strncmp (s + 1, p->name, p->len) == 0) | |
2695 | break; | |
2696 | if (p->type == perc_entry_none || p->type == perc_entry_reg) | |
2697 | break; | |
2698 | ||
2699 | if (s[p->len + 1] != '(') | |
2700 | { | |
2701 | as_bad (_("Illegal operands: %%%s requires arguments in ()"), p->name); | |
2702 | return special_case; | |
2703 | } | |
2704 | ||
2705 | op_arg = p->name; | |
2706 | the_insn.reloc = p->pop->reloc; | |
2707 | s += p->len + 2; | |
2708 | v9_arg_p = p->pop->flags & F_POP_V9; | |
2709 | } | |
2710 | ||
2711 | /* Note that if the get_expression() fails, we will still | |
2712 | have created U entries in the symbol table for the | |
2713 | 'symbols' in the input string. Try not to create U | |
2714 | symbols for registers, etc. */ | |
2715 | ||
2716 | /* This stuff checks to see if the expression ends in | |
2717 | +%reg. If it does, it removes the register from | |
2718 | the expression, and re-sets 's' to point to the | |
2719 | right place. */ | |
2720 | ||
2721 | if (op_arg) | |
2722 | { | |
2723 | int npar = 0; | |
2724 | ||
2725 | for (s1 = s; *s1 && *s1 != ',' && *s1 != ']'; s1++) | |
2726 | if (*s1 == '(') | |
2727 | npar++; | |
2728 | else if (*s1 == ')') | |
2729 | { | |
2730 | if (!npar) | |
2731 | break; | |
2732 | npar--; | |
2733 | } | |
2734 | ||
2735 | if (*s1 != ')') | |
2736 | { | |
2737 | as_bad (_("Illegal operands: %%%s requires arguments in ()"), op_arg); | |
2738 | return special_case; | |
2739 | } | |
2740 | ||
2741 | *s1 = '\0'; | |
2742 | (void) get_expression (s); | |
2743 | *s1 = ')'; | |
2744 | if (expr_parse_end != s1) | |
2745 | { | |
2746 | as_bad (_("Expression inside %%%s could not be parsed"), op_arg); | |
2747 | return special_case; | |
2748 | } | |
2749 | s = s1 + 1; | |
2750 | if (*s == ',' || *s == ']' || !*s) | |
2751 | continue; | |
2752 | if (*s != '+' && *s != '-') | |
2753 | { | |
2754 | as_bad (_("Illegal operands: Can't do arithmetics other than + and - involving %%%s()"), op_arg); | |
2755 | return special_case; | |
2756 | } | |
2757 | *s1 = '0'; | |
2758 | s = s1; | |
2759 | op_exp = the_insn.exp; | |
2760 | memset (&the_insn.exp, 0, sizeof (the_insn.exp)); | |
2761 | } | |
2762 | ||
2763 | for (s1 = s; *s1 && *s1 != ',' && *s1 != ']'; s1++) | |
2764 | ; | |
2765 | ||
2766 | if (s1 != s && ISDIGIT (s1[-1])) | |
2767 | { | |
2768 | if (s1[-2] == '%' && s1[-3] == '+') | |
2769 | s1 -= 3; | |
2770 | else if (strchr ("golir0123456789", s1[-2]) && s1[-3] == '%' && s1[-4] == '+') | |
2771 | s1 -= 4; | |
2772 | else if (s1[-3] == 'r' && s1[-4] == '%' && s1[-5] == '+') | |
2773 | s1 -= 5; | |
2774 | else | |
2775 | s1 = NULL; | |
2776 | if (s1) | |
2777 | { | |
2778 | *s1 = '\0'; | |
2779 | if (op_arg && s1 == s + 1) | |
2780 | the_insn.exp.X_op = O_absent; | |
2781 | else | |
2782 | (void) get_expression (s); | |
2783 | *s1 = '+'; | |
2784 | if (op_arg) | |
2785 | *s = ')'; | |
2786 | s = s1; | |
2787 | } | |
2788 | } | |
2789 | else | |
2790 | s1 = NULL; | |
2791 | ||
2792 | if (!s1) | |
2793 | { | |
2794 | (void) get_expression (s); | |
2795 | if (op_arg) | |
2796 | *s = ')'; | |
2797 | s = expr_parse_end; | |
2798 | } | |
2799 | ||
2800 | if (op_arg) | |
2801 | { | |
2802 | the_insn.exp2 = the_insn.exp; | |
2803 | the_insn.exp = op_exp; | |
2804 | if (the_insn.exp2.X_op == O_absent) | |
2805 | the_insn.exp2.X_op = O_illegal; | |
2806 | else if (the_insn.exp.X_op == O_absent) | |
2807 | { | |
2808 | the_insn.exp = the_insn.exp2; | |
2809 | the_insn.exp2.X_op = O_illegal; | |
2810 | } | |
2811 | else if (the_insn.exp.X_op == O_constant) | |
2812 | { | |
2813 | valueT val = the_insn.exp.X_add_number; | |
2814 | switch (the_insn.reloc) | |
2815 | { | |
2816 | default: | |
2817 | break; | |
2818 | ||
2819 | case BFD_RELOC_SPARC_HH22: | |
2820 | val = BSR (val, 32); | |
2821 | /* Fall through. */ | |
2822 | ||
2823 | case BFD_RELOC_SPARC_LM22: | |
2824 | case BFD_RELOC_HI22: | |
2825 | val = (val >> 10) & 0x3fffff; | |
2826 | break; | |
2827 | ||
2828 | case BFD_RELOC_SPARC_HM10: | |
2829 | val = BSR (val, 32); | |
2830 | /* Fall through. */ | |
2831 | ||
2832 | case BFD_RELOC_LO10: | |
2833 | val &= 0x3ff; | |
2834 | break; | |
2835 | ||
2836 | case BFD_RELOC_SPARC_H34: | |
2837 | val >>= 12; | |
2838 | val &= 0x3fffff; | |
2839 | break; | |
2840 | ||
2841 | case BFD_RELOC_SPARC_H44: | |
2842 | val >>= 22; | |
2843 | val &= 0x3fffff; | |
2844 | break; | |
2845 | ||
2846 | case BFD_RELOC_SPARC_M44: | |
2847 | val >>= 12; | |
2848 | val &= 0x3ff; | |
2849 | break; | |
2850 | ||
2851 | case BFD_RELOC_SPARC_L44: | |
2852 | val &= 0xfff; | |
2853 | break; | |
2854 | ||
2855 | case BFD_RELOC_SPARC_HIX22: | |
2856 | val = ~val; | |
2857 | val = (val >> 10) & 0x3fffff; | |
2858 | break; | |
2859 | ||
2860 | case BFD_RELOC_SPARC_LOX10: | |
2861 | val = (val & 0x3ff) | 0x1c00; | |
2862 | break; | |
2863 | } | |
2864 | the_insn.exp = the_insn.exp2; | |
2865 | the_insn.exp.X_add_number += val; | |
2866 | the_insn.exp2.X_op = O_illegal; | |
2867 | the_insn.reloc = old_reloc; | |
2868 | } | |
2869 | else if (the_insn.exp2.X_op != O_constant) | |
2870 | { | |
2871 | as_bad (_("Illegal operands: Can't add non-constant expression to %%%s()"), op_arg); | |
2872 | return special_case; | |
2873 | } | |
2874 | else | |
2875 | { | |
2876 | if (old_reloc != BFD_RELOC_SPARC13 | |
2877 | || the_insn.reloc != BFD_RELOC_LO10 | |
2878 | || sparc_arch_size != 64 | |
2879 | || sparc_pic_code) | |
2880 | { | |
2881 | as_bad (_("Illegal operands: Can't do arithmetics involving %%%s() of a relocatable symbol"), op_arg); | |
2882 | return special_case; | |
2883 | } | |
2884 | the_insn.reloc = BFD_RELOC_SPARC_OLO10; | |
2885 | } | |
2886 | } | |
2887 | } | |
2888 | /* Check for constants that don't require emitting a reloc. */ | |
2889 | if (the_insn.exp.X_op == O_constant | |
2890 | && the_insn.exp.X_add_symbol == 0 | |
2891 | && the_insn.exp.X_op_symbol == 0) | |
2892 | { | |
2893 | /* For pc-relative call instructions, we reject | |
2894 | constants to get better code. */ | |
2895 | if (the_insn.pcrel | |
2896 | && the_insn.reloc == BFD_RELOC_32_PCREL_S2 | |
2897 | && in_signed_range (the_insn.exp.X_add_number, 0x3fff)) | |
2898 | { | |
2899 | error_message = _(": PC-relative operand can't be a constant"); | |
2900 | goto error; | |
2901 | } | |
2902 | ||
2903 | if (the_insn.reloc >= BFD_RELOC_SPARC_TLS_GD_HI22 | |
2904 | && the_insn.reloc <= BFD_RELOC_SPARC_TLS_TPOFF64) | |
2905 | { | |
2906 | error_message = _(": TLS operand can't be a constant"); | |
2907 | goto error; | |
2908 | } | |
2909 | ||
2910 | /* Constants that won't fit are checked in md_apply_fix | |
2911 | and bfd_install_relocation. | |
2912 | ??? It would be preferable to install the constants | |
2913 | into the insn here and save having to create a fixS | |
2914 | for each one. There already exists code to handle | |
2915 | all the various cases (e.g. in md_apply_fix and | |
2916 | bfd_install_relocation) so duplicating all that code | |
2917 | here isn't right. */ | |
2918 | ||
2919 | /* This is a special case to handle cbcond instructions | |
2920 | properly, which can need two relocations. The first | |
2921 | one is for the 5-bit immediate field and the latter | |
2922 | is going to be for the WDISP10 branch part. We | |
2923 | handle the R_SPARC_5 immediate directly here so that | |
2924 | we don't need to add support for multiple relocations | |
2925 | in one instruction just yet. */ | |
2926 | if (the_insn.reloc == BFD_RELOC_SPARC_5 | |
2927 | && ((insn->match & OP(0x3)) == 0)) | |
2928 | { | |
2929 | valueT val = the_insn.exp.X_add_number; | |
2930 | ||
2931 | the_insn.reloc = BFD_RELOC_NONE; | |
2932 | if (! in_bitfield_range (val, 0x1f)) | |
2933 | { | |
2934 | error_message = _(": Immediate value in cbcond is out of range."); | |
2935 | goto error; | |
2936 | } | |
2937 | opcode |= val & 0x1f; | |
2938 | } | |
2939 | } | |
2940 | ||
2941 | continue; | |
2942 | ||
2943 | case 'a': | |
2944 | if (*s++ == 'a') | |
2945 | { | |
2946 | opcode |= ANNUL; | |
2947 | continue; | |
2948 | } | |
2949 | break; | |
2950 | ||
2951 | case 'A': | |
2952 | { | |
2953 | int asi = 0; | |
2954 | ||
2955 | /* Parse an asi. */ | |
2956 | if (*s == '#') | |
2957 | { | |
2958 | if (! parse_sparc_asi (&s, &sasi)) | |
2959 | { | |
2960 | error_message = _(": invalid ASI name"); | |
2961 | goto error; | |
2962 | } | |
2963 | asi = sasi->value; | |
2964 | } | |
2965 | else | |
2966 | { | |
2967 | if (! parse_const_expr_arg (&s, &asi)) | |
2968 | { | |
2969 | error_message = _(": invalid ASI expression"); | |
2970 | goto error; | |
2971 | } | |
2972 | if (asi < 0 || asi > 255) | |
2973 | { | |
2974 | error_message = _(": invalid ASI number"); | |
2975 | goto error; | |
2976 | } | |
2977 | } | |
2978 | opcode |= ASI (asi); | |
2979 | continue; | |
2980 | } /* Alternate space. */ | |
2981 | ||
2982 | case 'p': | |
2983 | if (startswith (s, "%psr")) | |
2984 | { | |
2985 | s += 4; | |
2986 | continue; | |
2987 | } | |
2988 | break; | |
2989 | ||
2990 | case 'q': /* Floating point queue. */ | |
2991 | if (startswith (s, "%fq")) | |
2992 | { | |
2993 | s += 3; | |
2994 | continue; | |
2995 | } | |
2996 | break; | |
2997 | ||
2998 | case 'Q': /* Coprocessor queue. */ | |
2999 | if (startswith (s, "%cq")) | |
3000 | { | |
3001 | s += 3; | |
3002 | continue; | |
3003 | } | |
3004 | break; | |
3005 | ||
3006 | case 'S': | |
3007 | if (strcmp (str, "set") == 0 | |
3008 | || strcmp (str, "setuw") == 0) | |
3009 | { | |
3010 | special_case = SPECIAL_CASE_SET; | |
3011 | continue; | |
3012 | } | |
3013 | else if (strcmp (str, "setsw") == 0) | |
3014 | { | |
3015 | special_case = SPECIAL_CASE_SETSW; | |
3016 | continue; | |
3017 | } | |
3018 | else if (strcmp (str, "setx") == 0) | |
3019 | { | |
3020 | special_case = SPECIAL_CASE_SETX; | |
3021 | continue; | |
3022 | } | |
3023 | else if (startswith (str, "fdiv")) | |
3024 | { | |
3025 | special_case = SPECIAL_CASE_FDIV; | |
3026 | continue; | |
3027 | } | |
3028 | break; | |
3029 | ||
3030 | case 'o': | |
3031 | if (!startswith (s, "%asi")) | |
3032 | break; | |
3033 | s += 4; | |
3034 | continue; | |
3035 | ||
3036 | case 's': | |
3037 | if (!startswith (s, "%fprs")) | |
3038 | break; | |
3039 | s += 5; | |
3040 | continue; | |
3041 | ||
3042 | case '{': | |
3043 | if (!startswith (s, "%mcdper")) | |
3044 | break; | |
3045 | s += 7; | |
3046 | continue; | |
3047 | ||
3048 | case '&': | |
3049 | if (!startswith (s, "%entropy")) | |
3050 | break; | |
3051 | s += 8; | |
3052 | continue; | |
3053 | ||
3054 | case 'E': | |
3055 | if (!startswith (s, "%ccr")) | |
3056 | break; | |
3057 | s += 4; | |
3058 | continue; | |
3059 | ||
3060 | case 't': | |
3061 | if (!startswith (s, "%tbr")) | |
3062 | break; | |
3063 | s += 4; | |
3064 | continue; | |
3065 | ||
3066 | case 'w': | |
3067 | if (!startswith (s, "%wim")) | |
3068 | break; | |
3069 | s += 4; | |
3070 | continue; | |
3071 | ||
3072 | case '|': | |
3073 | { | |
3074 | int imm2 = 0; | |
3075 | ||
3076 | /* Parse a 2-bit immediate. */ | |
3077 | if (! parse_const_expr_arg (&s, &imm2)) | |
3078 | { | |
3079 | error_message = _(": non-immdiate imm2 operand"); | |
3080 | goto error; | |
3081 | } | |
3082 | if ((imm2 & ~0x3) != 0) | |
3083 | { | |
3084 | error_message = _(": imm2 immediate operand out of range (0-3)"); | |
3085 | goto error; | |
3086 | } | |
3087 | ||
3088 | opcode |= ((imm2 & 0x2) << 3) | (imm2 & 0x1); | |
3089 | continue; | |
3090 | } | |
3091 | ||
3092 | case 'x': | |
3093 | { | |
3094 | char *push = input_line_pointer; | |
3095 | expressionS e; | |
3096 | ||
3097 | input_line_pointer = s; | |
3098 | expression (&e); | |
3099 | if (e.X_op == O_constant) | |
3100 | { | |
3101 | int n = e.X_add_number; | |
3102 | if (n != e.X_add_number || (n & ~0x1ff) != 0) | |
3103 | as_bad (_("OPF immediate operand out of range (0-0x1ff)")); | |
3104 | else | |
3105 | opcode |= e.X_add_number << 5; | |
3106 | } | |
3107 | else | |
3108 | as_bad (_("non-immediate OPF operand, ignored")); | |
3109 | s = input_line_pointer; | |
3110 | input_line_pointer = push; | |
3111 | continue; | |
3112 | } | |
3113 | ||
3114 | case 'y': | |
3115 | if (!startswith (s, "%y")) | |
3116 | break; | |
3117 | s += 2; | |
3118 | continue; | |
3119 | ||
3120 | case 'u': | |
3121 | case 'U': | |
3122 | { | |
3123 | /* Parse a sparclet cpreg. */ | |
3124 | int cpreg; | |
3125 | if (! parse_keyword_arg (sparc_encode_sparclet_cpreg, &s, &cpreg)) | |
3126 | { | |
3127 | error_message = _(": invalid cpreg name"); | |
3128 | goto error; | |
3129 | } | |
3130 | opcode |= (*args == 'U' ? RS1 (cpreg) : RD (cpreg)); | |
3131 | continue; | |
3132 | } | |
3133 | ||
3134 | default: | |
3135 | as_fatal (_("failed sanity check.")); | |
3136 | } /* switch on arg code. */ | |
3137 | ||
3138 | /* Break out of for() loop. */ | |
3139 | break; | |
3140 | } /* For each arg that we expect. */ | |
3141 | ||
3142 | error: | |
3143 | if (match == 0) | |
3144 | { | |
3145 | /* Args don't match. */ | |
3146 | if (&insn[1] - sparc_opcodes < sparc_num_opcodes | |
3147 | && (insn->name == insn[1].name | |
3148 | || !strcmp (insn->name, insn[1].name))) | |
3149 | { | |
3150 | ++insn; | |
3151 | s = argsStart; | |
3152 | continue; | |
3153 | } | |
3154 | else | |
3155 | { | |
3156 | as_bad (_("Illegal operands%s"), error_message); | |
3157 | return special_case; | |
3158 | } | |
3159 | } | |
3160 | else | |
3161 | { | |
3162 | /* We have a match. Now see if the architecture is OK. */ | |
3163 | /* String to use in case of architecture warning. */ | |
3164 | const char *msg_str = str; | |
3165 | int needed_arch_mask = insn->architecture; | |
3166 | ||
3167 | /* Include the ASI architecture needed as well */ | |
3168 | if (sasi && needed_arch_mask > sasi->architecture) | |
3169 | { | |
3170 | needed_arch_mask = sasi->architecture; | |
3171 | msg_str = sasi->name; | |
3172 | } | |
3173 | ||
3174 | uint64_t hwcaps = ((uint64_t) insn->hwcaps2 << 32) | insn->hwcaps; | |
3175 | ||
3176 | #ifndef TE_SOLARIS | |
3177 | if (hwcaps) | |
3178 | hwcap_seen |= hwcaps; | |
3179 | #endif | |
3180 | if (v9_arg_p) | |
3181 | { | |
3182 | needed_arch_mask &= | |
3183 | ~(SPARC_OPCODE_ARCH_MASK (SPARC_OPCODE_ARCH_V9) - 1); | |
3184 | if (! needed_arch_mask) | |
3185 | needed_arch_mask = | |
3186 | SPARC_OPCODE_ARCH_MASK (SPARC_OPCODE_ARCH_V9); | |
3187 | } | |
3188 | ||
3189 | if (needed_arch_mask | |
3190 | & SPARC_OPCODE_SUPPORTED (current_architecture)) | |
3191 | /* OK. */ | |
3192 | ; | |
3193 | /* Can we bump up the architecture? */ | |
3194 | else if (needed_arch_mask | |
3195 | & SPARC_OPCODE_SUPPORTED (max_architecture)) | |
3196 | { | |
3197 | enum sparc_opcode_arch_val needed_architecture = | |
3198 | sparc_ffs (SPARC_OPCODE_SUPPORTED (max_architecture) | |
3199 | & needed_arch_mask); | |
3200 | ||
3201 | gas_assert (needed_architecture <= SPARC_OPCODE_ARCH_MAX); | |
3202 | if (warn_on_bump | |
3203 | && needed_architecture > warn_after_architecture) | |
3204 | { | |
3205 | as_warn (_("architecture bumped from \"%s\" to \"%s\" on \"%s\""), | |
3206 | sparc_opcode_archs[current_architecture].name, | |
3207 | sparc_opcode_archs[needed_architecture].name, | |
3208 | msg_str); | |
3209 | warn_after_architecture = needed_architecture; | |
3210 | } | |
3211 | current_architecture = needed_architecture; | |
3212 | hwcap_allowed | |
3213 | = (hwcap_allowed | |
3214 | | hwcaps | |
3215 | | ((uint64_t) sparc_opcode_archs[current_architecture].hwcaps2 << 32) | |
3216 | | sparc_opcode_archs[current_architecture].hwcaps); | |
3217 | } | |
3218 | /* Conflict. */ | |
3219 | /* ??? This seems to be a bit fragile. What if the next entry in | |
3220 | the opcode table is the one we want and it is supported? | |
3221 | It is possible to arrange the table today so that this can't | |
3222 | happen but what about tomorrow? */ | |
3223 | else | |
3224 | { | |
3225 | int arch, printed_one_p = 0; | |
3226 | char *p; | |
3227 | char required_archs[SPARC_OPCODE_ARCH_MAX * 16]; | |
3228 | ||
3229 | /* Create a list of the architectures that support the insn. */ | |
3230 | needed_arch_mask &= ~SPARC_OPCODE_SUPPORTED (max_architecture); | |
3231 | p = required_archs; | |
3232 | arch = sparc_ffs (needed_arch_mask); | |
3233 | while ((1 << arch) <= needed_arch_mask) | |
3234 | { | |
3235 | if ((1 << arch) & needed_arch_mask) | |
3236 | { | |
3237 | if (printed_one_p) | |
3238 | *p++ = '|'; | |
3239 | strcpy (p, sparc_opcode_archs[arch].name); | |
3240 | p += strlen (p); | |
3241 | printed_one_p = 1; | |
3242 | } | |
3243 | ++arch; | |
3244 | } | |
3245 | ||
3246 | as_bad (_("Architecture mismatch on \"%s %s\"."), str, argsStart); | |
3247 | as_tsktsk (_("(Requires %s; requested architecture is %s.)"), | |
3248 | required_archs, | |
3249 | sparc_opcode_archs[max_architecture].name); | |
3250 | return special_case; | |
3251 | } | |
3252 | ||
3253 | /* Make sure the hwcaps used by the instruction are | |
3254 | currently enabled. */ | |
3255 | if (hwcaps & ~hwcap_allowed) | |
3256 | { | |
3257 | const char *hwcap_name = get_hwcap_name(hwcaps & ~hwcap_allowed); | |
3258 | ||
3259 | as_bad (_("Hardware capability \"%s\" not enabled for \"%s\"."), | |
3260 | hwcap_name, str); | |
3261 | return special_case; | |
3262 | } | |
3263 | } /* If no match. */ | |
3264 | ||
3265 | break; | |
3266 | } /* Forever looking for a match. */ | |
3267 | ||
3268 | the_insn.opcode = opcode; | |
3269 | return special_case; | |
3270 | } | |
3271 | ||
3272 | static char * | |
3273 | skip_over_keyword (char *q) | |
3274 | { | |
3275 | for (q = q + (*q == '#' || *q == '%'); | |
3276 | ISALNUM (*q) || *q == '_'; | |
3277 | ++q) | |
3278 | continue; | |
3279 | return q; | |
3280 | } | |
3281 | ||
3282 | static int | |
3283 | parse_sparc_asi (char **input_pointer_p, const sparc_asi **value_p) | |
3284 | { | |
3285 | const sparc_asi *value; | |
3286 | char c, *p, *q; | |
3287 | ||
3288 | p = *input_pointer_p; | |
3289 | q = skip_over_keyword(p); | |
3290 | c = *q; | |
3291 | *q = 0; | |
3292 | value = sparc_encode_asi (p); | |
3293 | *q = c; | |
3294 | if (value == NULL) | |
3295 | return 0; | |
3296 | *value_p = value; | |
3297 | *input_pointer_p = q; | |
3298 | return 1; | |
3299 | } | |
3300 | ||
3301 | /* Parse an argument that can be expressed as a keyword. | |
3302 | (eg: #StoreStore or %ccfr). | |
3303 | The result is a boolean indicating success. | |
3304 | If successful, INPUT_POINTER is updated. */ | |
3305 | ||
3306 | static int | |
3307 | parse_keyword_arg (int (*lookup_fn) (const char *), | |
3308 | char **input_pointerP, | |
3309 | int *valueP) | |
3310 | { | |
3311 | int value; | |
3312 | char c, *p, *q; | |
3313 | ||
3314 | p = *input_pointerP; | |
3315 | q = skip_over_keyword(p); | |
3316 | c = *q; | |
3317 | *q = 0; | |
3318 | value = (*lookup_fn) (p); | |
3319 | *q = c; | |
3320 | if (value == -1) | |
3321 | return 0; | |
3322 | *valueP = value; | |
3323 | *input_pointerP = q; | |
3324 | return 1; | |
3325 | } | |
3326 | ||
3327 | /* Parse an argument that is a constant expression. | |
3328 | The result is a boolean indicating success. */ | |
3329 | ||
3330 | static int | |
3331 | parse_const_expr_arg (char **input_pointerP, int *valueP) | |
3332 | { | |
3333 | char *save = input_line_pointer; | |
3334 | expressionS exp; | |
3335 | ||
3336 | input_line_pointer = *input_pointerP; | |
3337 | /* The next expression may be something other than a constant | |
3338 | (say if we're not processing the right variant of the insn). | |
3339 | Don't call expression unless we're sure it will succeed as it will | |
3340 | signal an error (which we want to defer until later). */ | |
3341 | /* FIXME: It might be better to define md_operand and have it recognize | |
3342 | things like %asi, etc. but continuing that route through to the end | |
3343 | is a lot of work. */ | |
3344 | if (*input_line_pointer == '%') | |
3345 | { | |
3346 | input_line_pointer = save; | |
3347 | return 0; | |
3348 | } | |
3349 | expression (&exp); | |
3350 | *input_pointerP = input_line_pointer; | |
3351 | input_line_pointer = save; | |
3352 | if (exp.X_op != O_constant) | |
3353 | return 0; | |
3354 | *valueP = exp.X_add_number; | |
3355 | return 1; | |
3356 | } | |
3357 | ||
3358 | /* Subroutine of sparc_ip to parse an expression. */ | |
3359 | ||
3360 | static int | |
3361 | get_expression (char *str) | |
3362 | { | |
3363 | char *save_in; | |
3364 | segT seg; | |
3365 | ||
3366 | save_in = input_line_pointer; | |
3367 | input_line_pointer = str; | |
3368 | seg = expression (&the_insn.exp); | |
3369 | if (seg != absolute_section | |
3370 | && seg != text_section | |
3371 | && seg != data_section | |
3372 | && seg != bss_section | |
3373 | && seg != undefined_section) | |
3374 | { | |
3375 | the_insn.error = _("bad segment"); | |
3376 | expr_parse_end = input_line_pointer; | |
3377 | input_line_pointer = save_in; | |
3378 | return 1; | |
3379 | } | |
3380 | expr_parse_end = input_line_pointer; | |
3381 | input_line_pointer = save_in; | |
3382 | return 0; | |
3383 | } | |
3384 | ||
3385 | /* Subroutine of md_assemble to output one insn. */ | |
3386 | ||
3387 | static void | |
3388 | output_insn (const struct sparc_opcode *insn, struct sparc_it *theinsn) | |
3389 | { | |
3390 | char *toP = frag_more (4); | |
3391 | ||
3392 | /* Put out the opcode. */ | |
3393 | if (INSN_BIG_ENDIAN) | |
3394 | number_to_chars_bigendian (toP, (valueT) theinsn->opcode, 4); | |
3395 | else | |
3396 | number_to_chars_littleendian (toP, (valueT) theinsn->opcode, 4); | |
3397 | ||
3398 | /* Put out the symbol-dependent stuff. */ | |
3399 | if (theinsn->reloc != BFD_RELOC_NONE) | |
3400 | { | |
3401 | fixS *fixP = fix_new_exp (frag_now, /* Which frag. */ | |
3402 | (toP - frag_now->fr_literal), /* Where. */ | |
3403 | 4, /* Size. */ | |
3404 | &theinsn->exp, | |
3405 | theinsn->pcrel, | |
3406 | theinsn->reloc); | |
3407 | /* Turn off overflow checking in fixup_segment. We'll do our | |
3408 | own overflow checking in md_apply_fix. This is necessary because | |
3409 | the insn size is 4 and fixup_segment will signal an overflow for | |
3410 | large 8 byte quantities. */ | |
3411 | fixP->fx_no_overflow = 1; | |
3412 | if (theinsn->reloc == BFD_RELOC_SPARC_OLO10) | |
3413 | fixP->tc_fix_data = theinsn->exp2.X_add_number; | |
3414 | } | |
3415 | ||
3416 | last_insn = insn; | |
3417 | last_opcode = theinsn->opcode; | |
3418 | ||
3419 | dwarf2_emit_insn (4); | |
3420 | } | |
3421 | \f | |
3422 | const char * | |
3423 | md_atof (int type, char *litP, int *sizeP) | |
3424 | { | |
3425 | return ieee_md_atof (type, litP, sizeP, target_big_endian); | |
3426 | } | |
3427 | ||
3428 | /* Write a value out to the object file, using the appropriate | |
3429 | endianness. */ | |
3430 | ||
3431 | void | |
3432 | md_number_to_chars (char *buf, valueT val, int n) | |
3433 | { | |
3434 | if (target_big_endian) | |
3435 | number_to_chars_bigendian (buf, val, n); | |
3436 | else if (target_little_endian_data | |
3437 | && ((n == 4 || n == 2) && ~now_seg->flags & SEC_ALLOC)) | |
3438 | /* Output debug words, which are not in allocated sections, as big | |
3439 | endian. */ | |
3440 | number_to_chars_bigendian (buf, val, n); | |
3441 | else if (target_little_endian_data || ! target_big_endian) | |
3442 | number_to_chars_littleendian (buf, val, n); | |
3443 | } | |
3444 | \f | |
3445 | /* Apply a fixS to the frags, now that we know the value it ought to | |
3446 | hold. */ | |
3447 | ||
3448 | void | |
3449 | md_apply_fix (fixS *fixP, valueT *valP, segT segment ATTRIBUTE_UNUSED) | |
3450 | { | |
3451 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
3452 | offsetT val = * (offsetT *) valP; | |
3453 | long insn; | |
3454 | ||
3455 | gas_assert (fixP->fx_r_type < BFD_RELOC_UNUSED); | |
3456 | ||
3457 | fixP->fx_addnumber = val; /* Remember value for emit_reloc. */ | |
3458 | ||
3459 | /* SPARC ELF relocations don't use an addend in the data field. */ | |
3460 | if (fixP->fx_addsy != NULL) | |
3461 | { | |
3462 | switch (fixP->fx_r_type) | |
3463 | { | |
3464 | case BFD_RELOC_SPARC_TLS_GD_HI22: | |
3465 | case BFD_RELOC_SPARC_TLS_GD_LO10: | |
3466 | case BFD_RELOC_SPARC_TLS_GD_ADD: | |
3467 | case BFD_RELOC_SPARC_TLS_GD_CALL: | |
3468 | case BFD_RELOC_SPARC_TLS_LDM_HI22: | |
3469 | case BFD_RELOC_SPARC_TLS_LDM_LO10: | |
3470 | case BFD_RELOC_SPARC_TLS_LDM_ADD: | |
3471 | case BFD_RELOC_SPARC_TLS_LDM_CALL: | |
3472 | case BFD_RELOC_SPARC_TLS_LDO_HIX22: | |
3473 | case BFD_RELOC_SPARC_TLS_LDO_LOX10: | |
3474 | case BFD_RELOC_SPARC_TLS_LDO_ADD: | |
3475 | case BFD_RELOC_SPARC_TLS_IE_HI22: | |
3476 | case BFD_RELOC_SPARC_TLS_IE_LO10: | |
3477 | case BFD_RELOC_SPARC_TLS_IE_LD: | |
3478 | case BFD_RELOC_SPARC_TLS_IE_LDX: | |
3479 | case BFD_RELOC_SPARC_TLS_IE_ADD: | |
3480 | case BFD_RELOC_SPARC_TLS_LE_HIX22: | |
3481 | case BFD_RELOC_SPARC_TLS_LE_LOX10: | |
3482 | case BFD_RELOC_SPARC_TLS_DTPMOD32: | |
3483 | case BFD_RELOC_SPARC_TLS_DTPMOD64: | |
3484 | case BFD_RELOC_SPARC_TLS_DTPOFF32: | |
3485 | case BFD_RELOC_SPARC_TLS_DTPOFF64: | |
3486 | case BFD_RELOC_SPARC_TLS_TPOFF32: | |
3487 | case BFD_RELOC_SPARC_TLS_TPOFF64: | |
3488 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
3489 | ||
3490 | default: | |
3491 | break; | |
3492 | } | |
3493 | ||
3494 | return; | |
3495 | } | |
3496 | ||
3497 | /* This is a hack. There should be a better way to | |
3498 | handle this. Probably in terms of howto fields, once | |
3499 | we can look at these fixups in terms of howtos. */ | |
3500 | if (fixP->fx_r_type == BFD_RELOC_32_PCREL_S2 && fixP->fx_addsy) | |
3501 | val += fixP->fx_where + fixP->fx_frag->fr_address; | |
3502 | ||
3503 | /* If this is a data relocation, just output VAL. */ | |
3504 | ||
3505 | if (fixP->fx_r_type == BFD_RELOC_8) | |
3506 | { | |
3507 | md_number_to_chars (buf, val, 1); | |
3508 | } | |
3509 | else if (fixP->fx_r_type == BFD_RELOC_16 | |
3510 | || fixP->fx_r_type == BFD_RELOC_SPARC_UA16) | |
3511 | { | |
3512 | md_number_to_chars (buf, val, 2); | |
3513 | } | |
3514 | else if (fixP->fx_r_type == BFD_RELOC_32 | |
3515 | || fixP->fx_r_type == BFD_RELOC_SPARC_UA32 | |
3516 | || fixP->fx_r_type == BFD_RELOC_SPARC_REV32) | |
3517 | { | |
3518 | md_number_to_chars (buf, val, 4); | |
3519 | } | |
3520 | else if (fixP->fx_r_type == BFD_RELOC_64 | |
3521 | || fixP->fx_r_type == BFD_RELOC_SPARC_UA64) | |
3522 | { | |
3523 | md_number_to_chars (buf, val, 8); | |
3524 | } | |
3525 | else if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
3526 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
3527 | { | |
3528 | fixP->fx_done = 0; | |
3529 | return; | |
3530 | } | |
3531 | else | |
3532 | { | |
3533 | /* It's a relocation against an instruction. */ | |
3534 | ||
3535 | if (INSN_BIG_ENDIAN) | |
3536 | insn = bfd_getb32 ((unsigned char *) buf); | |
3537 | else | |
3538 | insn = bfd_getl32 ((unsigned char *) buf); | |
3539 | ||
3540 | switch (fixP->fx_r_type) | |
3541 | { | |
3542 | case BFD_RELOC_32_PCREL_S2: | |
3543 | val = val >> 2; | |
3544 | /* FIXME: This increment-by-one deserves a comment of why it's | |
3545 | being done! */ | |
3546 | if (! sparc_pic_code | |
3547 | || fixP->fx_addsy == NULL | |
3548 | || symbol_section_p (fixP->fx_addsy)) | |
3549 | ++val; | |
3550 | ||
3551 | insn |= val & 0x3fffffff; | |
3552 | ||
3553 | /* See if we have a delay slot. In that case we attempt to | |
3554 | optimize several cases transforming CALL instructions | |
3555 | into branches. But we can only do that if the relocation | |
3556 | can be completely resolved here, i.e. if no undefined | |
3557 | symbol is associated with it. */ | |
3558 | if (sparc_relax && fixP->fx_addsy == NULL | |
3559 | && fixP->fx_where + 8 <= fixP->fx_frag->fr_fix) | |
3560 | { | |
3561 | #define G0 0 | |
3562 | #define O7 15 | |
3563 | #define XCC (2 << 20) | |
3564 | #define COND(x) (((x)&0xf)<<25) | |
3565 | #define CONDA COND(0x8) | |
3566 | #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC) | |
3567 | #define INSN_BA (F2(0,2) | CONDA) | |
3568 | #define INSN_OR F3(2, 0x2, 0) | |
3569 | #define INSN_NOP F2(0,4) | |
3570 | ||
3571 | long delay; | |
3572 | ||
3573 | /* If the instruction is a call with either: | |
3574 | restore | |
3575 | arithmetic instruction with rd == %o7 | |
3576 | where rs1 != %o7 and rs2 if it is register != %o7 | |
3577 | then we can optimize if the call destination is near | |
3578 | by changing the call into a branch always. */ | |
3579 | if (INSN_BIG_ENDIAN) | |
3580 | delay = bfd_getb32 ((unsigned char *) buf + 4); | |
3581 | else | |
3582 | delay = bfd_getl32 ((unsigned char *) buf + 4); | |
3583 | if ((insn & OP (~0)) != OP (1) || (delay & OP (~0)) != OP (2)) | |
3584 | break; | |
3585 | if ((delay & OP3 (~0)) != OP3 (0x3d) /* Restore. */ | |
3586 | && ((delay & OP3 (0x28)) != 0 /* Arithmetic. */ | |
3587 | || ((delay & RD (~0)) != RD (O7)))) | |
3588 | break; | |
3589 | if ((delay & RS1 (~0)) == RS1 (O7) | |
3590 | || ((delay & F3I (~0)) == 0 | |
3591 | && (delay & RS2 (~0)) == RS2 (O7))) | |
3592 | break; | |
3593 | /* Ensure the branch will fit into simm22. */ | |
3594 | if ((val & 0x3fe00000) | |
3595 | && (val & 0x3fe00000) != 0x3fe00000) | |
3596 | break; | |
3597 | /* Check if the arch is v9 and branch will fit | |
3598 | into simm19. */ | |
3599 | if (((val & 0x3c0000) == 0 | |
3600 | || (val & 0x3c0000) == 0x3c0000) | |
3601 | && (sparc_arch_size == 64 | |
3602 | || current_architecture >= SPARC_OPCODE_ARCH_V9)) | |
3603 | /* ba,pt %xcc */ | |
3604 | insn = INSN_BPA | (val & 0x7ffff); | |
3605 | else | |
3606 | /* ba */ | |
3607 | insn = INSN_BA | (val & 0x3fffff); | |
3608 | if (fixP->fx_where >= 4 | |
3609 | && ((delay & (0xffffffff ^ RS1 (~0))) | |
3610 | == (INSN_OR | RD (O7) | RS2 (G0)))) | |
3611 | { | |
3612 | long setter; | |
3613 | int reg; | |
3614 | ||
3615 | if (INSN_BIG_ENDIAN) | |
3616 | setter = bfd_getb32 ((unsigned char *) buf - 4); | |
3617 | else | |
3618 | setter = bfd_getl32 ((unsigned char *) buf - 4); | |
3619 | if ((setter & (0xffffffff ^ RD (~0))) | |
3620 | != (INSN_OR | RS1 (O7) | RS2 (G0))) | |
3621 | break; | |
3622 | /* The sequence was | |
3623 | or %o7, %g0, %rN | |
3624 | call foo | |
3625 | or %rN, %g0, %o7 | |
3626 | ||
3627 | If call foo was replaced with ba, replace | |
3628 | or %rN, %g0, %o7 with nop. */ | |
3629 | reg = (delay & RS1 (~0)) >> 14; | |
3630 | if (reg != ((setter & RD (~0)) >> 25) | |
3631 | || reg == G0 || reg == O7) | |
3632 | break; | |
3633 | ||
3634 | if (INSN_BIG_ENDIAN) | |
3635 | bfd_putb32 (INSN_NOP, (unsigned char *) buf + 4); | |
3636 | else | |
3637 | bfd_putl32 (INSN_NOP, (unsigned char *) buf + 4); | |
3638 | } | |
3639 | } | |
3640 | break; | |
3641 | ||
3642 | case BFD_RELOC_SPARC_11: | |
3643 | if (! in_signed_range (val, 0x7ff)) | |
3644 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3645 | _("relocation overflow")); | |
3646 | insn |= val & 0x7ff; | |
3647 | break; | |
3648 | ||
3649 | case BFD_RELOC_SPARC_10: | |
3650 | if (! in_signed_range (val, 0x3ff)) | |
3651 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3652 | _("relocation overflow")); | |
3653 | insn |= val & 0x3ff; | |
3654 | break; | |
3655 | ||
3656 | case BFD_RELOC_SPARC_7: | |
3657 | if (! in_bitfield_range (val, 0x7f)) | |
3658 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3659 | _("relocation overflow")); | |
3660 | insn |= val & 0x7f; | |
3661 | break; | |
3662 | ||
3663 | case BFD_RELOC_SPARC_6: | |
3664 | if (! in_bitfield_range (val, 0x3f)) | |
3665 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3666 | _("relocation overflow")); | |
3667 | insn |= val & 0x3f; | |
3668 | break; | |
3669 | ||
3670 | case BFD_RELOC_SPARC_5: | |
3671 | if (! in_bitfield_range (val, 0x1f)) | |
3672 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3673 | _("relocation overflow")); | |
3674 | insn |= val & 0x1f; | |
3675 | break; | |
3676 | ||
3677 | case BFD_RELOC_SPARC_WDISP10: | |
3678 | if ((val & 3) | |
3679 | || val >= 0x007fc | |
3680 | || val <= -(offsetT) 0x808) | |
3681 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3682 | _("relocation overflow")); | |
3683 | /* FIXME: The +1 deserves a comment. */ | |
3684 | val = (val >> 2) + 1; | |
3685 | insn |= ((val & 0x300) << 11) | |
3686 | | ((val & 0xff) << 5); | |
3687 | break; | |
3688 | ||
3689 | case BFD_RELOC_SPARC_WDISP16: | |
3690 | if ((val & 3) | |
3691 | || val >= 0x1fffc | |
3692 | || val <= -(offsetT) 0x20008) | |
3693 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3694 | _("relocation overflow")); | |
3695 | /* FIXME: The +1 deserves a comment. */ | |
3696 | val = (val >> 2) + 1; | |
3697 | insn |= ((val & 0xc000) << 6) | (val & 0x3fff); | |
3698 | break; | |
3699 | ||
3700 | case BFD_RELOC_SPARC_WDISP19: | |
3701 | if ((val & 3) | |
3702 | || val >= 0xffffc | |
3703 | || val <= -(offsetT) 0x100008) | |
3704 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3705 | _("relocation overflow")); | |
3706 | /* FIXME: The +1 deserves a comment. */ | |
3707 | val = (val >> 2) + 1; | |
3708 | insn |= val & 0x7ffff; | |
3709 | break; | |
3710 | ||
3711 | case BFD_RELOC_SPARC_HH22: | |
3712 | val = BSR (val, 32); | |
3713 | /* Fall through. */ | |
3714 | ||
3715 | case BFD_RELOC_SPARC_LM22: | |
3716 | case BFD_RELOC_HI22: | |
3717 | if (!fixP->fx_addsy) | |
3718 | insn |= (val >> 10) & 0x3fffff; | |
3719 | else | |
3720 | /* FIXME: Need comment explaining why we do this. */ | |
3721 | insn &= ~0xffff; | |
3722 | break; | |
3723 | ||
3724 | case BFD_RELOC_SPARC22: | |
3725 | if (val & ~0x003fffff) | |
3726 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3727 | _("relocation overflow")); | |
3728 | insn |= (val & 0x3fffff); | |
3729 | break; | |
3730 | ||
3731 | case BFD_RELOC_SPARC_HM10: | |
3732 | val = BSR (val, 32); | |
3733 | /* Fall through. */ | |
3734 | ||
3735 | case BFD_RELOC_LO10: | |
3736 | if (!fixP->fx_addsy) | |
3737 | insn |= val & 0x3ff; | |
3738 | else | |
3739 | /* FIXME: Need comment explaining why we do this. */ | |
3740 | insn &= ~0xff; | |
3741 | break; | |
3742 | ||
3743 | case BFD_RELOC_SPARC_OLO10: | |
3744 | val &= 0x3ff; | |
3745 | val += fixP->tc_fix_data; | |
3746 | /* Fall through. */ | |
3747 | ||
3748 | case BFD_RELOC_SPARC13: | |
3749 | if (! in_signed_range (val, 0x1fff)) | |
3750 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3751 | _("relocation overflow")); | |
3752 | insn |= val & 0x1fff; | |
3753 | break; | |
3754 | ||
3755 | case BFD_RELOC_SPARC_WDISP22: | |
3756 | val = (val >> 2) + 1; | |
3757 | /* Fall through. */ | |
3758 | case BFD_RELOC_SPARC_BASE22: | |
3759 | insn |= val & 0x3fffff; | |
3760 | break; | |
3761 | ||
3762 | case BFD_RELOC_SPARC_H34: | |
3763 | if (!fixP->fx_addsy) | |
3764 | { | |
3765 | bfd_vma tval = val; | |
3766 | tval >>= 12; | |
3767 | insn |= tval & 0x3fffff; | |
3768 | } | |
3769 | break; | |
3770 | ||
3771 | case BFD_RELOC_SPARC_H44: | |
3772 | if (!fixP->fx_addsy) | |
3773 | { | |
3774 | bfd_vma tval = val; | |
3775 | tval >>= 22; | |
3776 | insn |= tval & 0x3fffff; | |
3777 | } | |
3778 | break; | |
3779 | ||
3780 | case BFD_RELOC_SPARC_M44: | |
3781 | if (!fixP->fx_addsy) | |
3782 | insn |= (val >> 12) & 0x3ff; | |
3783 | break; | |
3784 | ||
3785 | case BFD_RELOC_SPARC_L44: | |
3786 | if (!fixP->fx_addsy) | |
3787 | insn |= val & 0xfff; | |
3788 | break; | |
3789 | ||
3790 | case BFD_RELOC_SPARC_HIX22: | |
3791 | if (!fixP->fx_addsy) | |
3792 | { | |
3793 | val ^= ~(offsetT) 0; | |
3794 | insn |= (val >> 10) & 0x3fffff; | |
3795 | } | |
3796 | break; | |
3797 | ||
3798 | case BFD_RELOC_SPARC_LOX10: | |
3799 | if (!fixP->fx_addsy) | |
3800 | insn |= 0x1c00 | (val & 0x3ff); | |
3801 | break; | |
3802 | ||
3803 | case BFD_RELOC_NONE: | |
3804 | default: | |
3805 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3806 | _("bad or unhandled relocation type: 0x%02x"), | |
3807 | fixP->fx_r_type); | |
3808 | break; | |
3809 | } | |
3810 | ||
3811 | if (INSN_BIG_ENDIAN) | |
3812 | bfd_putb32 (insn, (unsigned char *) buf); | |
3813 | else | |
3814 | bfd_putl32 (insn, (unsigned char *) buf); | |
3815 | } | |
3816 | ||
3817 | /* Are we finished with this relocation now? */ | |
3818 | if (fixP->fx_addsy == 0 && !fixP->fx_pcrel) | |
3819 | fixP->fx_done = 1; | |
3820 | } | |
3821 | ||
3822 | /* Translate internal representation of relocation info to BFD target | |
3823 | format. */ | |
3824 | ||
3825 | arelent ** | |
3826 | tc_gen_reloc (asection *section, fixS *fixp) | |
3827 | { | |
3828 | static arelent *relocs[3]; | |
3829 | arelent *reloc; | |
3830 | bfd_reloc_code_real_type code; | |
3831 | ||
3832 | relocs[0] = reloc = XNEW (arelent); | |
3833 | relocs[1] = NULL; | |
3834 | ||
3835 | reloc->sym_ptr_ptr = XNEW (asymbol *); | |
3836 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
3837 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
3838 | ||
3839 | switch (fixp->fx_r_type) | |
3840 | { | |
3841 | case BFD_RELOC_8: | |
3842 | case BFD_RELOC_16: | |
3843 | case BFD_RELOC_32: | |
3844 | case BFD_RELOC_64: | |
3845 | if (fixp->fx_pcrel) | |
3846 | { | |
3847 | switch (fixp->fx_size) | |
3848 | { | |
3849 | default: | |
3850 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
3851 | _("can not do %d byte pc-relative relocation"), | |
3852 | fixp->fx_size); | |
3853 | code = fixp->fx_r_type; | |
3854 | fixp->fx_pcrel = 0; | |
3855 | break; | |
3856 | case 1: code = BFD_RELOC_8_PCREL; break; | |
3857 | case 2: code = BFD_RELOC_16_PCREL; break; | |
3858 | case 4: code = BFD_RELOC_32_PCREL; break; | |
3859 | #ifdef BFD64 | |
3860 | case 8: code = BFD_RELOC_64_PCREL; break; | |
3861 | #endif | |
3862 | } | |
3863 | if (fixp->fx_pcrel) | |
3864 | fixp->fx_addnumber = fixp->fx_offset; | |
3865 | break; | |
3866 | } | |
3867 | /* Fall through. */ | |
3868 | case BFD_RELOC_HI22: | |
3869 | case BFD_RELOC_LO10: | |
3870 | case BFD_RELOC_32_PCREL_S2: | |
3871 | case BFD_RELOC_SPARC13: | |
3872 | case BFD_RELOC_SPARC22: | |
3873 | case BFD_RELOC_SPARC_PC22: | |
3874 | case BFD_RELOC_SPARC_PC10: | |
3875 | case BFD_RELOC_SPARC_BASE13: | |
3876 | case BFD_RELOC_SPARC_WDISP10: | |
3877 | case BFD_RELOC_SPARC_WDISP16: | |
3878 | case BFD_RELOC_SPARC_WDISP19: | |
3879 | case BFD_RELOC_SPARC_WDISP22: | |
3880 | case BFD_RELOC_SPARC_5: | |
3881 | case BFD_RELOC_SPARC_6: | |
3882 | case BFD_RELOC_SPARC_7: | |
3883 | case BFD_RELOC_SPARC_10: | |
3884 | case BFD_RELOC_SPARC_11: | |
3885 | case BFD_RELOC_SPARC_HH22: | |
3886 | case BFD_RELOC_SPARC_HM10: | |
3887 | case BFD_RELOC_SPARC_LM22: | |
3888 | case BFD_RELOC_SPARC_PC_HH22: | |
3889 | case BFD_RELOC_SPARC_PC_HM10: | |
3890 | case BFD_RELOC_SPARC_PC_LM22: | |
3891 | case BFD_RELOC_SPARC_H34: | |
3892 | case BFD_RELOC_SPARC_H44: | |
3893 | case BFD_RELOC_SPARC_M44: | |
3894 | case BFD_RELOC_SPARC_L44: | |
3895 | case BFD_RELOC_SPARC_HIX22: | |
3896 | case BFD_RELOC_SPARC_LOX10: | |
3897 | case BFD_RELOC_SPARC_REV32: | |
3898 | case BFD_RELOC_SPARC_OLO10: | |
3899 | case BFD_RELOC_SPARC_UA16: | |
3900 | case BFD_RELOC_SPARC_UA32: | |
3901 | case BFD_RELOC_SPARC_UA64: | |
3902 | case BFD_RELOC_8_PCREL: | |
3903 | case BFD_RELOC_16_PCREL: | |
3904 | case BFD_RELOC_32_PCREL: | |
3905 | case BFD_RELOC_64_PCREL: | |
3906 | case BFD_RELOC_SPARC_PLT32: | |
3907 | case BFD_RELOC_SPARC_PLT64: | |
3908 | case BFD_RELOC_VTABLE_ENTRY: | |
3909 | case BFD_RELOC_VTABLE_INHERIT: | |
3910 | case BFD_RELOC_SPARC_TLS_GD_HI22: | |
3911 | case BFD_RELOC_SPARC_TLS_GD_LO10: | |
3912 | case BFD_RELOC_SPARC_TLS_GD_ADD: | |
3913 | case BFD_RELOC_SPARC_TLS_GD_CALL: | |
3914 | case BFD_RELOC_SPARC_TLS_LDM_HI22: | |
3915 | case BFD_RELOC_SPARC_TLS_LDM_LO10: | |
3916 | case BFD_RELOC_SPARC_TLS_LDM_ADD: | |
3917 | case BFD_RELOC_SPARC_TLS_LDM_CALL: | |
3918 | case BFD_RELOC_SPARC_TLS_LDO_HIX22: | |
3919 | case BFD_RELOC_SPARC_TLS_LDO_LOX10: | |
3920 | case BFD_RELOC_SPARC_TLS_LDO_ADD: | |
3921 | case BFD_RELOC_SPARC_TLS_IE_HI22: | |
3922 | case BFD_RELOC_SPARC_TLS_IE_LO10: | |
3923 | case BFD_RELOC_SPARC_TLS_IE_LD: | |
3924 | case BFD_RELOC_SPARC_TLS_IE_LDX: | |
3925 | case BFD_RELOC_SPARC_TLS_IE_ADD: | |
3926 | case BFD_RELOC_SPARC_TLS_LE_HIX22: | |
3927 | case BFD_RELOC_SPARC_TLS_LE_LOX10: | |
3928 | case BFD_RELOC_SPARC_TLS_DTPOFF32: | |
3929 | case BFD_RELOC_SPARC_TLS_DTPOFF64: | |
3930 | case BFD_RELOC_SPARC_GOTDATA_OP_HIX22: | |
3931 | case BFD_RELOC_SPARC_GOTDATA_OP_LOX10: | |
3932 | case BFD_RELOC_SPARC_GOTDATA_OP: | |
3933 | code = fixp->fx_r_type; | |
3934 | break; | |
3935 | default: | |
3936 | abort (); | |
3937 | return NULL; | |
3938 | } | |
3939 | ||
3940 | /* If we are generating PIC code, we need to generate a different | |
3941 | set of relocs. */ | |
3942 | ||
3943 | #define GOT_NAME "_GLOBAL_OFFSET_TABLE_" | |
3944 | #ifdef TE_VXWORKS | |
3945 | #define GOTT_BASE "__GOTT_BASE__" | |
3946 | #define GOTT_INDEX "__GOTT_INDEX__" | |
3947 | #endif | |
3948 | ||
3949 | /* This code must be parallel to tc_fix_adjustable. */ | |
3950 | ||
3951 | if (sparc_pic_code) | |
3952 | { | |
3953 | switch (code) | |
3954 | { | |
3955 | case BFD_RELOC_32_PCREL_S2: | |
3956 | if (generic_force_reloc (fixp)) | |
3957 | code = BFD_RELOC_SPARC_WPLT30; | |
3958 | break; | |
3959 | case BFD_RELOC_HI22: | |
3960 | code = BFD_RELOC_SPARC_GOT22; | |
3961 | if (fixp->fx_addsy != NULL) | |
3962 | { | |
3963 | if (strcmp (S_GET_NAME (fixp->fx_addsy), GOT_NAME) == 0) | |
3964 | code = BFD_RELOC_SPARC_PC22; | |
3965 | #ifdef TE_VXWORKS | |
3966 | if (strcmp (S_GET_NAME (fixp->fx_addsy), GOTT_BASE) == 0 | |
3967 | || strcmp (S_GET_NAME (fixp->fx_addsy), GOTT_INDEX) == 0) | |
3968 | code = BFD_RELOC_HI22; /* Unchanged. */ | |
3969 | #endif | |
3970 | } | |
3971 | break; | |
3972 | case BFD_RELOC_LO10: | |
3973 | code = BFD_RELOC_SPARC_GOT10; | |
3974 | if (fixp->fx_addsy != NULL) | |
3975 | { | |
3976 | if (strcmp (S_GET_NAME (fixp->fx_addsy), GOT_NAME) == 0) | |
3977 | code = BFD_RELOC_SPARC_PC10; | |
3978 | #ifdef TE_VXWORKS | |
3979 | if (strcmp (S_GET_NAME (fixp->fx_addsy), GOTT_BASE) == 0 | |
3980 | || strcmp (S_GET_NAME (fixp->fx_addsy), GOTT_INDEX) == 0) | |
3981 | code = BFD_RELOC_LO10; /* Unchanged. */ | |
3982 | #endif | |
3983 | } | |
3984 | break; | |
3985 | case BFD_RELOC_SPARC13: | |
3986 | code = BFD_RELOC_SPARC_GOT13; | |
3987 | break; | |
3988 | default: | |
3989 | break; | |
3990 | } | |
3991 | } | |
3992 | ||
3993 | /* Nothing is aligned in DWARF debugging sections. */ | |
3994 | if (bfd_section_flags (section) & SEC_DEBUGGING) | |
3995 | switch (code) | |
3996 | { | |
3997 | case BFD_RELOC_16: code = BFD_RELOC_SPARC_UA16; break; | |
3998 | case BFD_RELOC_32: code = BFD_RELOC_SPARC_UA32; break; | |
3999 | case BFD_RELOC_64: code = BFD_RELOC_SPARC_UA64; break; | |
4000 | default: break; | |
4001 | } | |
4002 | ||
4003 | if (code == BFD_RELOC_SPARC_OLO10) | |
4004 | reloc->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_LO10); | |
4005 | else | |
4006 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
4007 | if (reloc->howto == 0) | |
4008 | { | |
4009 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4010 | _("internal error: can't export reloc type %d (`%s')"), | |
4011 | fixp->fx_r_type, bfd_get_reloc_code_name (code)); | |
4012 | xfree (reloc); | |
4013 | relocs[0] = NULL; | |
4014 | return relocs; | |
4015 | } | |
4016 | ||
4017 | /* @@ Why fx_addnumber sometimes and fx_offset other times? */ | |
4018 | if (code != BFD_RELOC_32_PCREL_S2 | |
4019 | && code != BFD_RELOC_SPARC_WDISP22 | |
4020 | && code != BFD_RELOC_SPARC_WDISP16 | |
4021 | && code != BFD_RELOC_SPARC_WDISP19 | |
4022 | && code != BFD_RELOC_SPARC_WDISP10 | |
4023 | && code != BFD_RELOC_SPARC_WPLT30 | |
4024 | && code != BFD_RELOC_SPARC_TLS_GD_CALL | |
4025 | && code != BFD_RELOC_SPARC_TLS_LDM_CALL) | |
4026 | reloc->addend = fixp->fx_addnumber; | |
4027 | else if (symbol_section_p (fixp->fx_addsy)) | |
4028 | reloc->addend = (section->vma | |
4029 | + fixp->fx_addnumber | |
4030 | + md_pcrel_from (fixp)); | |
4031 | else | |
4032 | reloc->addend = fixp->fx_offset; | |
4033 | ||
4034 | /* We expand R_SPARC_OLO10 to R_SPARC_LO10 and R_SPARC_13 | |
4035 | on the same location. */ | |
4036 | if (code == BFD_RELOC_SPARC_OLO10) | |
4037 | { | |
4038 | relocs[1] = reloc = XNEW (arelent); | |
4039 | relocs[2] = NULL; | |
4040 | ||
4041 | reloc->sym_ptr_ptr = XNEW (asymbol *); | |
4042 | *reloc->sym_ptr_ptr | |
4043 | = symbol_get_bfdsym (section_symbol (absolute_section)); | |
4044 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
4045 | reloc->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_SPARC13); | |
4046 | reloc->addend = fixp->tc_fix_data; | |
4047 | } | |
4048 | ||
4049 | return relocs; | |
4050 | } | |
4051 | \f | |
4052 | /* We have no need to default values of symbols. */ | |
4053 | ||
4054 | symbolS * | |
4055 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) | |
4056 | { | |
4057 | return 0; | |
4058 | } | |
4059 | ||
4060 | /* Round up a section size to the appropriate boundary. */ | |
4061 | ||
4062 | valueT | |
4063 | md_section_align (segT segment ATTRIBUTE_UNUSED, valueT size) | |
4064 | { | |
4065 | return size; | |
4066 | } | |
4067 | ||
4068 | /* Exactly what point is a PC-relative offset relative TO? | |
4069 | On the sparc, they're relative to the address of the offset, plus | |
4070 | its size. This gets us to the following instruction. | |
4071 | (??? Is this right? FIXME-SOON) */ | |
4072 | long | |
4073 | md_pcrel_from (fixS *fixP) | |
4074 | { | |
4075 | long ret; | |
4076 | ||
4077 | ret = fixP->fx_where + fixP->fx_frag->fr_address; | |
4078 | if (! sparc_pic_code | |
4079 | || fixP->fx_addsy == NULL | |
4080 | || symbol_section_p (fixP->fx_addsy)) | |
4081 | ret += fixP->fx_size; | |
4082 | return ret; | |
4083 | } | |
4084 | \f | |
4085 | /* Return log2 (VALUE), or -1 if VALUE is not an exact positive power | |
4086 | of two. */ | |
4087 | ||
4088 | static int | |
4089 | mylog2 (int value) | |
4090 | { | |
4091 | int shift; | |
4092 | ||
4093 | if (value <= 0) | |
4094 | return -1; | |
4095 | ||
4096 | for (shift = 0; (value & 1) == 0; value >>= 1) | |
4097 | ++shift; | |
4098 | ||
4099 | return (value == 1) ? shift : -1; | |
4100 | } | |
4101 | ||
4102 | /* Sort of like s_lcomm. */ | |
4103 | ||
4104 | static void | |
4105 | s_reserve (int ignore ATTRIBUTE_UNUSED) | |
4106 | { | |
4107 | char *name; | |
4108 | char *p; | |
4109 | char c; | |
4110 | int align; | |
4111 | int size; | |
4112 | int temp; | |
4113 | symbolS *symbolP; | |
4114 | ||
4115 | c = get_symbol_name (&name); | |
4116 | p = input_line_pointer; | |
4117 | *p = c; | |
4118 | SKIP_WHITESPACE_AFTER_NAME (); | |
4119 | ||
4120 | if (*input_line_pointer != ',') | |
4121 | { | |
4122 | as_bad (_("Expected comma after name")); | |
4123 | ignore_rest_of_line (); | |
4124 | return; | |
4125 | } | |
4126 | ||
4127 | ++input_line_pointer; | |
4128 | ||
4129 | if ((size = get_absolute_expression ()) < 0) | |
4130 | { | |
4131 | as_bad (_("BSS length (%d.) <0! Ignored."), size); | |
4132 | ignore_rest_of_line (); | |
4133 | return; | |
4134 | } /* Bad length. */ | |
4135 | ||
4136 | *p = 0; | |
4137 | symbolP = symbol_find_or_make (name); | |
4138 | *p = c; | |
4139 | ||
4140 | if (!startswith (input_line_pointer, ",\"bss\"") | |
4141 | && !startswith (input_line_pointer, ",\".bss\"")) | |
4142 | { | |
4143 | as_bad (_("bad .reserve segment -- expected BSS segment")); | |
4144 | return; | |
4145 | } | |
4146 | ||
4147 | if (input_line_pointer[2] == '.') | |
4148 | input_line_pointer += 7; | |
4149 | else | |
4150 | input_line_pointer += 6; | |
4151 | SKIP_WHITESPACE (); | |
4152 | ||
4153 | if (*input_line_pointer == ',') | |
4154 | { | |
4155 | ++input_line_pointer; | |
4156 | ||
4157 | SKIP_WHITESPACE (); | |
4158 | if (*input_line_pointer == '\n') | |
4159 | { | |
4160 | as_bad (_("missing alignment")); | |
4161 | ignore_rest_of_line (); | |
4162 | return; | |
4163 | } | |
4164 | ||
4165 | align = (int) get_absolute_expression (); | |
4166 | ||
4167 | if (align < 0) | |
4168 | { | |
4169 | as_bad (_("negative alignment")); | |
4170 | ignore_rest_of_line (); | |
4171 | return; | |
4172 | } | |
4173 | ||
4174 | if (align != 0) | |
4175 | { | |
4176 | temp = mylog2 (align); | |
4177 | if (temp < 0) | |
4178 | { | |
4179 | as_bad (_("alignment not a power of 2")); | |
4180 | ignore_rest_of_line (); | |
4181 | return; | |
4182 | } | |
4183 | ||
4184 | align = temp; | |
4185 | } | |
4186 | ||
4187 | record_alignment (bss_section, align); | |
4188 | } | |
4189 | else | |
4190 | align = 0; | |
4191 | ||
4192 | if (!S_IS_DEFINED (symbolP)) | |
4193 | { | |
4194 | if (! need_pass_2) | |
4195 | { | |
4196 | char *pfrag; | |
4197 | segT current_seg = now_seg; | |
4198 | subsegT current_subseg = now_subseg; | |
4199 | ||
4200 | /* Switch to bss. */ | |
4201 | subseg_set (bss_section, 1); | |
4202 | ||
4203 | if (align) | |
4204 | /* Do alignment. */ | |
4205 | frag_align (align, 0, 0); | |
4206 | ||
4207 | /* Detach from old frag. */ | |
4208 | if (S_GET_SEGMENT (symbolP) == bss_section) | |
4209 | symbol_get_frag (symbolP)->fr_symbol = NULL; | |
4210 | ||
4211 | symbol_set_frag (symbolP, frag_now); | |
4212 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, | |
4213 | (offsetT) size, (char *) 0); | |
4214 | *pfrag = 0; | |
4215 | ||
4216 | S_SET_SEGMENT (symbolP, bss_section); | |
4217 | ||
4218 | subseg_set (current_seg, current_subseg); | |
4219 | ||
4220 | S_SET_SIZE (symbolP, size); | |
4221 | } | |
4222 | } | |
4223 | else | |
4224 | { | |
4225 | as_warn (_("Ignoring attempt to re-define symbol %s"), | |
4226 | S_GET_NAME (symbolP)); | |
4227 | } | |
4228 | ||
4229 | demand_empty_rest_of_line (); | |
4230 | } | |
4231 | ||
4232 | static void | |
4233 | s_common (int ignore ATTRIBUTE_UNUSED) | |
4234 | { | |
4235 | char *name; | |
4236 | char c; | |
4237 | char *p; | |
4238 | offsetT temp, size; | |
4239 | symbolS *symbolP; | |
4240 | ||
4241 | c = get_symbol_name (&name); | |
4242 | /* Just after name is now '\0'. */ | |
4243 | p = input_line_pointer; | |
4244 | *p = c; | |
4245 | SKIP_WHITESPACE_AFTER_NAME (); | |
4246 | if (*input_line_pointer != ',') | |
4247 | { | |
4248 | as_bad (_("Expected comma after symbol-name")); | |
4249 | ignore_rest_of_line (); | |
4250 | return; | |
4251 | } | |
4252 | ||
4253 | /* Skip ','. */ | |
4254 | input_line_pointer++; | |
4255 | ||
4256 | if ((temp = get_absolute_expression ()) < 0) | |
4257 | { | |
4258 | as_bad (_(".COMMon length (%lu) out of range ignored"), | |
4259 | (unsigned long) temp); | |
4260 | ignore_rest_of_line (); | |
4261 | return; | |
4262 | } | |
4263 | size = temp; | |
4264 | *p = 0; | |
4265 | symbolP = symbol_find_or_make (name); | |
4266 | *p = c; | |
4267 | if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP)) | |
4268 | { | |
4269 | as_bad (_("Ignoring attempt to re-define symbol")); | |
4270 | ignore_rest_of_line (); | |
4271 | return; | |
4272 | } | |
4273 | if (S_GET_VALUE (symbolP) != 0) | |
4274 | { | |
4275 | if (S_GET_VALUE (symbolP) != (valueT) size) | |
4276 | { | |
4277 | as_warn (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."), | |
4278 | S_GET_NAME (symbolP), (long) S_GET_VALUE (symbolP), (long) size); | |
4279 | } | |
4280 | } | |
4281 | know (symbol_get_frag (symbolP) == &zero_address_frag); | |
4282 | if (*input_line_pointer != ',') | |
4283 | { | |
4284 | as_bad (_("Expected comma after common length")); | |
4285 | ignore_rest_of_line (); | |
4286 | return; | |
4287 | } | |
4288 | input_line_pointer++; | |
4289 | SKIP_WHITESPACE (); | |
4290 | if (*input_line_pointer != '"') | |
4291 | { | |
4292 | temp = get_absolute_expression (); | |
4293 | ||
4294 | if (temp < 0) | |
4295 | { | |
4296 | as_bad (_("negative alignment")); | |
4297 | ignore_rest_of_line (); | |
4298 | return; | |
4299 | } | |
4300 | ||
4301 | if (symbol_get_obj (symbolP)->local) | |
4302 | { | |
4303 | segT old_sec; | |
4304 | int old_subsec; | |
4305 | int align; | |
4306 | ||
4307 | old_sec = now_seg; | |
4308 | old_subsec = now_subseg; | |
4309 | ||
4310 | if (temp == 0) | |
4311 | align = 0; | |
4312 | else | |
4313 | align = mylog2 (temp); | |
4314 | ||
4315 | if (align < 0) | |
4316 | { | |
4317 | as_bad (_("alignment not a power of 2")); | |
4318 | ignore_rest_of_line (); | |
4319 | return; | |
4320 | } | |
4321 | ||
4322 | record_alignment (bss_section, align); | |
4323 | subseg_set (bss_section, 0); | |
4324 | if (align) | |
4325 | frag_align (align, 0, 0); | |
4326 | if (S_GET_SEGMENT (symbolP) == bss_section) | |
4327 | symbol_get_frag (symbolP)->fr_symbol = 0; | |
4328 | symbol_set_frag (symbolP, frag_now); | |
4329 | p = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, | |
4330 | (offsetT) size, (char *) 0); | |
4331 | *p = 0; | |
4332 | S_SET_SEGMENT (symbolP, bss_section); | |
4333 | S_CLEAR_EXTERNAL (symbolP); | |
4334 | S_SET_SIZE (symbolP, size); | |
4335 | subseg_set (old_sec, old_subsec); | |
4336 | } | |
4337 | else | |
4338 | { | |
4339 | allocate_common: | |
4340 | S_SET_VALUE (symbolP, (valueT) size); | |
4341 | S_SET_ALIGN (symbolP, temp); | |
4342 | S_SET_SIZE (symbolP, size); | |
4343 | S_SET_EXTERNAL (symbolP); | |
4344 | S_SET_SEGMENT (symbolP, bfd_com_section_ptr); | |
4345 | } | |
4346 | } | |
4347 | else | |
4348 | { | |
4349 | input_line_pointer++; | |
4350 | /* @@ Some use the dot, some don't. Can we get some consistency?? */ | |
4351 | if (*input_line_pointer == '.') | |
4352 | input_line_pointer++; | |
4353 | /* @@ Some say data, some say bss. */ | |
4354 | if (!startswith (input_line_pointer, "bss\"") | |
4355 | && !startswith (input_line_pointer, "data\"")) | |
4356 | { | |
4357 | while (*--input_line_pointer != '"') | |
4358 | ; | |
4359 | input_line_pointer--; | |
4360 | goto bad_common_segment; | |
4361 | } | |
4362 | while (*input_line_pointer++ != '"') | |
4363 | ; | |
4364 | goto allocate_common; | |
4365 | } | |
4366 | ||
4367 | symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT; | |
4368 | ||
4369 | demand_empty_rest_of_line (); | |
4370 | return; | |
4371 | ||
4372 | { | |
4373 | bad_common_segment: | |
4374 | p = input_line_pointer; | |
4375 | while (*p && *p != '\n') | |
4376 | p++; | |
4377 | c = *p; | |
4378 | *p = '\0'; | |
4379 | as_bad (_("bad .common segment %s"), input_line_pointer + 1); | |
4380 | *p = c; | |
4381 | input_line_pointer = p; | |
4382 | ignore_rest_of_line (); | |
4383 | return; | |
4384 | } | |
4385 | } | |
4386 | ||
4387 | /* Handle the .empty pseudo-op. This suppresses the warnings about | |
4388 | invalid delay slot usage. */ | |
4389 | ||
4390 | static void | |
4391 | s_empty (int ignore ATTRIBUTE_UNUSED) | |
4392 | { | |
4393 | /* The easy way to implement is to just forget about the last | |
4394 | instruction. */ | |
4395 | last_insn = NULL; | |
4396 | } | |
4397 | ||
4398 | static void | |
4399 | s_seg (int ignore ATTRIBUTE_UNUSED) | |
4400 | { | |
4401 | ||
4402 | if (startswith (input_line_pointer, "\"text\"")) | |
4403 | { | |
4404 | input_line_pointer += 6; | |
4405 | s_text (0); | |
4406 | return; | |
4407 | } | |
4408 | if (startswith (input_line_pointer, "\"data\"")) | |
4409 | { | |
4410 | input_line_pointer += 6; | |
4411 | s_data (0); | |
4412 | return; | |
4413 | } | |
4414 | if (startswith (input_line_pointer, "\"data1\"")) | |
4415 | { | |
4416 | input_line_pointer += 7; | |
4417 | s_data1 (); | |
4418 | return; | |
4419 | } | |
4420 | if (startswith (input_line_pointer, "\"bss\"")) | |
4421 | { | |
4422 | input_line_pointer += 5; | |
4423 | /* We only support 2 segments -- text and data -- for now, so | |
4424 | things in the "bss segment" will have to go into data for now. | |
4425 | You can still allocate SEG_BSS stuff with .lcomm or .reserve. */ | |
4426 | subseg_set (data_section, 255); /* FIXME-SOMEDAY. */ | |
4427 | return; | |
4428 | } | |
4429 | as_bad (_("Unknown segment type")); | |
4430 | demand_empty_rest_of_line (); | |
4431 | } | |
4432 | ||
4433 | static void | |
4434 | s_data1 (void) | |
4435 | { | |
4436 | subseg_set (data_section, 1); | |
4437 | demand_empty_rest_of_line (); | |
4438 | } | |
4439 | ||
4440 | static void | |
4441 | s_proc (int ignore ATTRIBUTE_UNUSED) | |
4442 | { | |
4443 | while (!is_end_of_line[(unsigned char) *input_line_pointer]) | |
4444 | { | |
4445 | ++input_line_pointer; | |
4446 | } | |
4447 | ++input_line_pointer; | |
4448 | } | |
4449 | ||
4450 | /* This static variable is set by s_uacons to tell sparc_cons_align | |
4451 | that the expression does not need to be aligned. */ | |
4452 | ||
4453 | static int sparc_no_align_cons = 0; | |
4454 | ||
4455 | /* This handles the unaligned space allocation pseudo-ops, such as | |
4456 | .uaword. .uaword is just like .word, but the value does not need | |
4457 | to be aligned. */ | |
4458 | ||
4459 | static void | |
4460 | s_uacons (int bytes) | |
4461 | { | |
4462 | /* Tell sparc_cons_align not to align this value. */ | |
4463 | sparc_no_align_cons = 1; | |
4464 | cons (bytes); | |
4465 | sparc_no_align_cons = 0; | |
4466 | } | |
4467 | ||
4468 | /* This handles the native word allocation pseudo-op .nword. | |
4469 | For sparc_arch_size 32 it is equivalent to .word, for | |
4470 | sparc_arch_size 64 it is equivalent to .xword. */ | |
4471 | ||
4472 | static void | |
4473 | s_ncons (int bytes ATTRIBUTE_UNUSED) | |
4474 | { | |
4475 | cons (sparc_arch_size == 32 ? 4 : 8); | |
4476 | } | |
4477 | ||
4478 | /* Handle the SPARC ELF .register pseudo-op. This sets the binding of a | |
4479 | global register. | |
4480 | The syntax is: | |
4481 | ||
4482 | .register %g[2367],{#scratch|symbolname|#ignore} | |
4483 | */ | |
4484 | ||
4485 | static void | |
4486 | s_register (int ignore ATTRIBUTE_UNUSED) | |
4487 | { | |
4488 | char c; | |
4489 | int reg; | |
4490 | int flags; | |
4491 | char *regname; | |
4492 | ||
4493 | if (input_line_pointer[0] != '%' | |
4494 | || input_line_pointer[1] != 'g' | |
4495 | || ((input_line_pointer[2] & ~1) != '2' | |
4496 | && (input_line_pointer[2] & ~1) != '6') | |
4497 | || input_line_pointer[3] != ',') | |
4498 | as_bad (_("register syntax is .register %%g[2367],{#scratch|symbolname|#ignore}")); | |
4499 | reg = input_line_pointer[2] - '0'; | |
4500 | input_line_pointer += 4; | |
4501 | ||
4502 | if (*input_line_pointer == '#') | |
4503 | { | |
4504 | ++input_line_pointer; | |
4505 | c = get_symbol_name (®name); | |
4506 | if (strcmp (regname, "scratch") && strcmp (regname, "ignore")) | |
4507 | as_bad (_("register syntax is .register %%g[2367],{#scratch|symbolname|#ignore}")); | |
4508 | if (regname[0] == 'i') | |
4509 | regname = NULL; | |
4510 | else | |
4511 | regname = (char *) ""; | |
4512 | } | |
4513 | else | |
4514 | { | |
4515 | c = get_symbol_name (®name); | |
4516 | } | |
4517 | ||
4518 | if (sparc_arch_size == 64) | |
4519 | { | |
4520 | if (globals[reg]) | |
4521 | { | |
4522 | if ((regname && globals[reg] != (symbolS *) 1 | |
4523 | && strcmp (S_GET_NAME (globals[reg]), regname)) | |
4524 | || ((regname != NULL) ^ (globals[reg] != (symbolS *) 1))) | |
4525 | as_bad (_("redefinition of global register")); | |
4526 | } | |
4527 | else | |
4528 | { | |
4529 | if (regname == NULL) | |
4530 | globals[reg] = (symbolS *) 1; | |
4531 | else | |
4532 | { | |
4533 | if (*regname) | |
4534 | { | |
4535 | if (symbol_find (regname)) | |
4536 | as_bad (_("Register symbol %s already defined."), | |
4537 | regname); | |
4538 | } | |
4539 | globals[reg] = symbol_make (regname); | |
4540 | flags = symbol_get_bfdsym (globals[reg])->flags; | |
4541 | if (! *regname) | |
4542 | flags = flags & ~(BSF_GLOBAL|BSF_LOCAL|BSF_WEAK); | |
4543 | if (! (flags & (BSF_GLOBAL|BSF_LOCAL|BSF_WEAK))) | |
4544 | flags |= BSF_GLOBAL; | |
4545 | symbol_get_bfdsym (globals[reg])->flags = flags; | |
4546 | S_SET_VALUE (globals[reg], (valueT) reg); | |
4547 | S_SET_ALIGN (globals[reg], reg); | |
4548 | S_SET_SIZE (globals[reg], 0); | |
4549 | /* Although we actually want undefined_section here, | |
4550 | we have to use absolute_section, because otherwise | |
4551 | generic as code will make it a COM section. | |
4552 | We fix this up in sparc_adjust_symtab. */ | |
4553 | S_SET_SEGMENT (globals[reg], absolute_section); | |
4554 | S_SET_OTHER (globals[reg], 0); | |
4555 | elf_symbol (symbol_get_bfdsym (globals[reg])) | |
4556 | ->internal_elf_sym.st_info = | |
4557 | ELF_ST_INFO(STB_GLOBAL, STT_REGISTER); | |
4558 | elf_symbol (symbol_get_bfdsym (globals[reg])) | |
4559 | ->internal_elf_sym.st_shndx = SHN_UNDEF; | |
4560 | } | |
4561 | } | |
4562 | } | |
4563 | ||
4564 | (void) restore_line_pointer (c); | |
4565 | ||
4566 | demand_empty_rest_of_line (); | |
4567 | } | |
4568 | ||
4569 | /* Adjust the symbol table. We set undefined sections for STT_REGISTER | |
4570 | symbols which need it. */ | |
4571 | ||
4572 | void | |
4573 | sparc_adjust_symtab (void) | |
4574 | { | |
4575 | symbolS *sym; | |
4576 | ||
4577 | for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym)) | |
4578 | { | |
4579 | if (ELF_ST_TYPE (elf_symbol (symbol_get_bfdsym (sym)) | |
4580 | ->internal_elf_sym.st_info) != STT_REGISTER) | |
4581 | continue; | |
4582 | ||
4583 | if (ELF_ST_TYPE (elf_symbol (symbol_get_bfdsym (sym)) | |
4584 | ->internal_elf_sym.st_shndx != SHN_UNDEF)) | |
4585 | continue; | |
4586 | ||
4587 | S_SET_SEGMENT (sym, undefined_section); | |
4588 | } | |
4589 | } | |
4590 | ||
4591 | /* If the --enforce-aligned-data option is used, we require .word, | |
4592 | et. al., to be aligned correctly. We do it by setting up an | |
4593 | rs_align_code frag, and checking in HANDLE_ALIGN to make sure that | |
4594 | no unexpected alignment was introduced. | |
4595 | ||
4596 | The SunOS and Solaris native assemblers enforce aligned data by | |
4597 | default. We don't want to do that, because gcc can deliberately | |
4598 | generate misaligned data if the packed attribute is used. Instead, | |
4599 | we permit misaligned data by default, and permit the user to set an | |
4600 | option to check for it. */ | |
4601 | ||
4602 | void | |
4603 | sparc_cons_align (int nbytes) | |
4604 | { | |
4605 | int nalign; | |
4606 | ||
4607 | /* Only do this if we are enforcing aligned data. */ | |
4608 | if (! enforce_aligned_data) | |
4609 | return; | |
4610 | ||
4611 | /* Don't align if this is an unaligned pseudo-op. */ | |
4612 | if (sparc_no_align_cons) | |
4613 | return; | |
4614 | ||
4615 | nalign = mylog2 (nbytes); | |
4616 | if (nalign == 0) | |
4617 | return; | |
4618 | ||
4619 | gas_assert (nalign > 0); | |
4620 | ||
4621 | if (now_seg == absolute_section) | |
4622 | { | |
4623 | if ((abs_section_offset & ((1 << nalign) - 1)) != 0) | |
4624 | as_bad (_("misaligned data")); | |
4625 | return; | |
4626 | } | |
4627 | ||
4628 | frag_var (rs_align_test, 1, 1, (relax_substateT) 0, | |
4629 | (symbolS *) NULL, (offsetT) nalign, (char *) NULL); | |
4630 | ||
4631 | record_alignment (now_seg, nalign); | |
4632 | } | |
4633 | ||
4634 | /* This is called from HANDLE_ALIGN in tc-sparc.h. */ | |
4635 | ||
4636 | void | |
4637 | sparc_handle_align (fragS *fragp) | |
4638 | { | |
4639 | int count, fix; | |
4640 | char *p; | |
4641 | ||
4642 | count = fragp->fr_next->fr_address - fragp->fr_address - fragp->fr_fix; | |
4643 | ||
4644 | switch (fragp->fr_type) | |
4645 | { | |
4646 | case rs_align_test: | |
4647 | if (count != 0) | |
4648 | as_bad_where (fragp->fr_file, fragp->fr_line, _("misaligned data")); | |
4649 | break; | |
4650 | ||
4651 | case rs_align_code: | |
4652 | p = fragp->fr_literal + fragp->fr_fix; | |
4653 | fix = 0; | |
4654 | ||
4655 | if (count & 3) | |
4656 | { | |
4657 | fix = count & 3; | |
4658 | memset (p, 0, fix); | |
4659 | p += fix; | |
4660 | count -= fix; | |
4661 | } | |
4662 | ||
4663 | if (SPARC_OPCODE_ARCH_V9_P (max_architecture) && count > 8) | |
4664 | { | |
4665 | unsigned wval = (0x30680000 | count >> 2); /* ba,a,pt %xcc, 1f */ | |
4666 | if (INSN_BIG_ENDIAN) | |
4667 | number_to_chars_bigendian (p, wval, 4); | |
4668 | else | |
4669 | number_to_chars_littleendian (p, wval, 4); | |
4670 | p += 4; | |
4671 | count -= 4; | |
4672 | fix += 4; | |
4673 | } | |
4674 | ||
4675 | if (INSN_BIG_ENDIAN) | |
4676 | number_to_chars_bigendian (p, 0x01000000, 4); | |
4677 | else | |
4678 | number_to_chars_littleendian (p, 0x01000000, 4); | |
4679 | ||
4680 | fragp->fr_fix += fix; | |
4681 | fragp->fr_var = 4; | |
4682 | break; | |
4683 | ||
4684 | default: | |
4685 | break; | |
4686 | } | |
4687 | } | |
4688 | ||
4689 | /* Some special processing for a Sparc ELF file. */ | |
4690 | ||
4691 | void | |
4692 | sparc_elf_final_processing (void) | |
4693 | { | |
4694 | /* Set the Sparc ELF flag bits. FIXME: There should probably be some | |
4695 | sort of BFD interface for this. */ | |
4696 | if (sparc_arch_size == 64) | |
4697 | { | |
4698 | switch (sparc_memory_model) | |
4699 | { | |
4700 | case MM_RMO: | |
4701 | elf_elfheader (stdoutput)->e_flags |= EF_SPARCV9_RMO; | |
4702 | break; | |
4703 | case MM_PSO: | |
4704 | elf_elfheader (stdoutput)->e_flags |= EF_SPARCV9_PSO; | |
4705 | break; | |
4706 | default: | |
4707 | break; | |
4708 | } | |
4709 | } | |
4710 | else if (current_architecture >= SPARC_OPCODE_ARCH_V9) | |
4711 | elf_elfheader (stdoutput)->e_flags |= EF_SPARC_32PLUS; | |
4712 | if (current_architecture == SPARC_OPCODE_ARCH_V9A) | |
4713 | elf_elfheader (stdoutput)->e_flags |= EF_SPARC_SUN_US1; | |
4714 | else if (current_architecture == SPARC_OPCODE_ARCH_V9B) | |
4715 | elf_elfheader (stdoutput)->e_flags |= EF_SPARC_SUN_US1|EF_SPARC_SUN_US3; | |
4716 | } | |
4717 | ||
4718 | const char * | |
4719 | sparc_cons (expressionS *exp, int size) | |
4720 | { | |
4721 | char *save; | |
4722 | const char *sparc_cons_special_reloc = NULL; | |
4723 | ||
4724 | SKIP_WHITESPACE (); | |
4725 | save = input_line_pointer; | |
4726 | if (input_line_pointer[0] == '%' | |
4727 | && input_line_pointer[1] == 'r' | |
4728 | && input_line_pointer[2] == '_') | |
4729 | { | |
4730 | if (startswith (input_line_pointer + 3, "disp")) | |
4731 | { | |
4732 | input_line_pointer += 7; | |
4733 | sparc_cons_special_reloc = "disp"; | |
4734 | } | |
4735 | else if (startswith (input_line_pointer + 3, "plt")) | |
4736 | { | |
4737 | if (size != 4 && size != 8) | |
4738 | as_bad (_("Illegal operands: %%r_plt in %d-byte data field"), size); | |
4739 | else | |
4740 | { | |
4741 | input_line_pointer += 6; | |
4742 | sparc_cons_special_reloc = "plt"; | |
4743 | } | |
4744 | } | |
4745 | else if (startswith (input_line_pointer + 3, "tls_dtpoff")) | |
4746 | { | |
4747 | if (size != 4 && size != 8) | |
4748 | as_bad (_("Illegal operands: %%r_tls_dtpoff in %d-byte data field"), size); | |
4749 | else | |
4750 | { | |
4751 | input_line_pointer += 13; | |
4752 | sparc_cons_special_reloc = "tls_dtpoff"; | |
4753 | } | |
4754 | } | |
4755 | if (sparc_cons_special_reloc) | |
4756 | { | |
4757 | int bad = 0; | |
4758 | ||
4759 | switch (size) | |
4760 | { | |
4761 | case 1: | |
4762 | if (*input_line_pointer != '8') | |
4763 | bad = 1; | |
4764 | input_line_pointer--; | |
4765 | break; | |
4766 | case 2: | |
4767 | if (input_line_pointer[0] != '1' || input_line_pointer[1] != '6') | |
4768 | bad = 1; | |
4769 | break; | |
4770 | case 4: | |
4771 | if (input_line_pointer[0] != '3' || input_line_pointer[1] != '2') | |
4772 | bad = 1; | |
4773 | break; | |
4774 | case 8: | |
4775 | if (input_line_pointer[0] != '6' || input_line_pointer[1] != '4') | |
4776 | bad = 1; | |
4777 | break; | |
4778 | default: | |
4779 | bad = 1; | |
4780 | break; | |
4781 | } | |
4782 | ||
4783 | if (bad) | |
4784 | { | |
4785 | as_bad (_("Illegal operands: Only %%r_%s%d allowed in %d-byte data fields"), | |
4786 | sparc_cons_special_reloc, size * 8, size); | |
4787 | } | |
4788 | else | |
4789 | { | |
4790 | input_line_pointer += 2; | |
4791 | if (*input_line_pointer != '(') | |
4792 | { | |
4793 | as_bad (_("Illegal operands: %%r_%s%d requires arguments in ()"), | |
4794 | sparc_cons_special_reloc, size * 8); | |
4795 | bad = 1; | |
4796 | } | |
4797 | } | |
4798 | ||
4799 | if (bad) | |
4800 | { | |
4801 | input_line_pointer = save; | |
4802 | sparc_cons_special_reloc = NULL; | |
4803 | } | |
4804 | else | |
4805 | { | |
4806 | int c; | |
4807 | char *end = ++input_line_pointer; | |
4808 | int npar = 0; | |
4809 | ||
4810 | while (! is_end_of_line[(c = *end)]) | |
4811 | { | |
4812 | if (c == '(') | |
4813 | npar++; | |
4814 | else if (c == ')') | |
4815 | { | |
4816 | if (!npar) | |
4817 | break; | |
4818 | npar--; | |
4819 | } | |
4820 | end++; | |
4821 | } | |
4822 | ||
4823 | if (c != ')') | |
4824 | as_bad (_("Illegal operands: %%r_%s%d requires arguments in ()"), | |
4825 | sparc_cons_special_reloc, size * 8); | |
4826 | else | |
4827 | { | |
4828 | *end = '\0'; | |
4829 | expression (exp); | |
4830 | *end = c; | |
4831 | if (input_line_pointer != end) | |
4832 | { | |
4833 | as_bad (_("Illegal operands: %%r_%s%d requires arguments in ()"), | |
4834 | sparc_cons_special_reloc, size * 8); | |
4835 | } | |
4836 | else | |
4837 | { | |
4838 | input_line_pointer++; | |
4839 | SKIP_WHITESPACE (); | |
4840 | c = *input_line_pointer; | |
4841 | if (! is_end_of_line[c] && c != ',') | |
4842 | as_bad (_("Illegal operands: garbage after %%r_%s%d()"), | |
4843 | sparc_cons_special_reloc, size * 8); | |
4844 | } | |
4845 | } | |
4846 | } | |
4847 | } | |
4848 | } | |
4849 | if (sparc_cons_special_reloc == NULL) | |
4850 | expression (exp); | |
4851 | return sparc_cons_special_reloc; | |
4852 | } | |
4853 | ||
4854 | /* This is called by emit_expr via TC_CONS_FIX_NEW when creating a | |
4855 | reloc for a cons. We could use the definition there, except that | |
4856 | we want to handle little endian relocs specially. */ | |
4857 | ||
4858 | void | |
4859 | cons_fix_new_sparc (fragS *frag, | |
4860 | int where, | |
4861 | unsigned int nbytes, | |
4862 | expressionS *exp, | |
4863 | const char *sparc_cons_special_reloc) | |
4864 | { | |
4865 | bfd_reloc_code_real_type r; | |
4866 | ||
4867 | r = (nbytes == 1 ? BFD_RELOC_8 : | |
4868 | (nbytes == 2 ? BFD_RELOC_16 : | |
4869 | (nbytes == 4 ? BFD_RELOC_32 : BFD_RELOC_64))); | |
4870 | ||
4871 | if (target_little_endian_data | |
4872 | && nbytes == 4 | |
4873 | && now_seg->flags & SEC_ALLOC) | |
4874 | r = BFD_RELOC_SPARC_REV32; | |
4875 | ||
4876 | #ifdef TE_SOLARIS | |
4877 | /* The Solaris linker does not allow R_SPARC_UA64 | |
4878 | relocations for 32-bit executables. */ | |
4879 | if (!target_little_endian_data | |
4880 | && sparc_arch_size != 64 | |
4881 | && r == BFD_RELOC_64) | |
4882 | r = BFD_RELOC_32; | |
4883 | #endif | |
4884 | ||
4885 | if (sparc_cons_special_reloc) | |
4886 | { | |
4887 | if (*sparc_cons_special_reloc == 'd') | |
4888 | switch (nbytes) | |
4889 | { | |
4890 | case 1: r = BFD_RELOC_8_PCREL; break; | |
4891 | case 2: r = BFD_RELOC_16_PCREL; break; | |
4892 | case 4: r = BFD_RELOC_32_PCREL; break; | |
4893 | case 8: r = BFD_RELOC_64_PCREL; break; | |
4894 | default: abort (); | |
4895 | } | |
4896 | else if (*sparc_cons_special_reloc == 'p') | |
4897 | switch (nbytes) | |
4898 | { | |
4899 | case 4: r = BFD_RELOC_SPARC_PLT32; break; | |
4900 | case 8: r = BFD_RELOC_SPARC_PLT64; break; | |
4901 | } | |
4902 | else | |
4903 | switch (nbytes) | |
4904 | { | |
4905 | case 4: r = BFD_RELOC_SPARC_TLS_DTPOFF32; break; | |
4906 | case 8: r = BFD_RELOC_SPARC_TLS_DTPOFF64; break; | |
4907 | } | |
4908 | } | |
4909 | else if (sparc_no_align_cons | |
4910 | || /* PR 20803 - relocs in the .eh_frame section | |
4911 | need to support unaligned access. */ | |
4912 | strcmp (now_seg->name, ".eh_frame") == 0) | |
4913 | { | |
4914 | switch (nbytes) | |
4915 | { | |
4916 | case 2: r = BFD_RELOC_SPARC_UA16; break; | |
4917 | case 4: r = BFD_RELOC_SPARC_UA32; break; | |
4918 | #ifdef TE_SOLARIS | |
4919 | /* The Solaris linker does not allow R_SPARC_UA64 | |
4920 | relocations for 32-bit executables. */ | |
4921 | case 8: r = sparc_arch_size == 64 ? | |
4922 | BFD_RELOC_SPARC_UA64 : BFD_RELOC_SPARC_UA32; break; | |
4923 | #else | |
4924 | case 8: r = BFD_RELOC_SPARC_UA64; break; | |
4925 | #endif | |
4926 | default: abort (); | |
4927 | } | |
4928 | } | |
4929 | ||
4930 | fix_new_exp (frag, where, (int) nbytes, exp, 0, r); | |
4931 | } | |
4932 | ||
4933 | void | |
4934 | sparc_cfi_frame_initial_instructions (void) | |
4935 | { | |
4936 | cfi_add_CFA_def_cfa (14, sparc_arch_size == 64 ? 0x7ff : 0); | |
4937 | } | |
4938 | ||
4939 | int | |
4940 | sparc_regname_to_dw2regnum (char *regname) | |
4941 | { | |
4942 | char *q; | |
4943 | int i; | |
4944 | ||
4945 | if (!regname[0]) | |
4946 | return -1; | |
4947 | ||
4948 | switch (regname[0]) | |
4949 | { | |
4950 | case 'g': i = 0; break; | |
4951 | case 'o': i = 1; break; | |
4952 | case 'l': i = 2; break; | |
4953 | case 'i': i = 3; break; | |
4954 | default: i = -1; break; | |
4955 | } | |
4956 | if (i != -1) | |
4957 | { | |
4958 | if (regname[1] < '0' || regname[1] > '8' || regname[2]) | |
4959 | return -1; | |
4960 | return i * 8 + regname[1] - '0'; | |
4961 | } | |
4962 | if (regname[0] == 's' && regname[1] == 'p' && !regname[2]) | |
4963 | return 14; | |
4964 | if (regname[0] == 'f' && regname[1] == 'p' && !regname[2]) | |
4965 | return 30; | |
4966 | if (regname[0] == 'f' || regname[0] == 'r') | |
4967 | { | |
4968 | unsigned int regnum; | |
4969 | ||
4970 | regnum = strtoul (regname + 1, &q, 10); | |
4971 | if (q == NULL || *q) | |
4972 | return -1; | |
4973 | if (regnum >= ((regname[0] == 'f' | |
4974 | && SPARC_OPCODE_ARCH_V9_P (max_architecture)) | |
4975 | ? 64 : 32)) | |
4976 | return -1; | |
4977 | if (regname[0] == 'f') | |
4978 | { | |
4979 | regnum += 32; | |
4980 | if (regnum >= 64 && (regnum & 1)) | |
4981 | return -1; | |
4982 | } | |
4983 | return regnum; | |
4984 | } | |
4985 | return -1; | |
4986 | } | |
4987 | ||
4988 | void | |
4989 | sparc_cfi_emit_pcrel_expr (expressionS *exp, unsigned int nbytes) | |
4990 | { | |
4991 | sparc_no_align_cons = 1; | |
4992 | emit_expr_with_reloc (exp, nbytes, "disp"); | |
4993 | sparc_no_align_cons = 0; | |
4994 | } |