Commit | Line | Data |
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0ebb9a87 | 1 | /* tc-frv.c -- Assembler for the Fujitsu FRV. |
b90efa5b | 2 | Copyright (C) 2002-2015 Free Software Foundation, Inc. |
0ebb9a87 DB |
3 | |
4 | This file is part of GAS, the GNU Assembler. | |
5 | ||
6 | GAS is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 8 | the Free Software Foundation; either version 3, or (at your option) |
0ebb9a87 DB |
9 | any later version. |
10 | ||
11 | GAS is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GAS; see the file COPYING. If not, write to | |
4b4da160 NC |
18 | the Free Software Foundation, 51 Franklin Street - Fifth Floor, |
19 | Boston, MA 02110-1301, USA. */ | |
0ebb9a87 | 20 | |
0ebb9a87 | 21 | #include "as.h" |
0ebb9a87 DB |
22 | #include "subsegs.h" |
23 | #include "symcat.h" | |
24 | #include "opcodes/frv-desc.h" | |
25 | #include "opcodes/frv-opc.h" | |
26 | #include "cgen.h" | |
27 | #include "libbfd.h" | |
28 | #include "elf/common.h" | |
29 | #include "elf/frv.h" | |
f2e25d93 | 30 | #include "dwarf2dbg.h" |
0ebb9a87 DB |
31 | |
32 | /* Structure to hold all of the different components describing | |
33 | an individual instruction. */ | |
34 | typedef struct | |
35 | { | |
36 | const CGEN_INSN * insn; | |
37 | const CGEN_INSN * orig_insn; | |
38 | CGEN_FIELDS fields; | |
39 | #if CGEN_INT_INSN_P | |
40 | CGEN_INSN_INT buffer [1]; | |
41 | #define INSN_VALUE(buf) (*(buf)) | |
42 | #else | |
43 | unsigned char buffer [CGEN_MAX_INSN_SIZE]; | |
44 | #define INSN_VALUE(buf) (buf) | |
45 | #endif | |
46 | char * addr; | |
47 | fragS * frag; | |
48 | int num_fixups; | |
49 | fixS * fixups [GAS_CGEN_MAX_FIXUPS]; | |
50 | int indices [MAX_OPERAND_INSTANCES]; | |
51 | } | |
52 | frv_insn; | |
53 | ||
54 | enum vliw_insn_type | |
55 | { | |
56 | VLIW_GENERIC_TYPE, /* Don't care about this insn. */ | |
57 | VLIW_BRANCH_TYPE, /* A Branch. */ | |
58 | VLIW_LABEL_TYPE, /* A Label. */ | |
59 | VLIW_NOP_TYPE, /* A NOP. */ | |
60 | VLIW_BRANCH_HAS_NOPS /* A Branch that requires NOPS. */ | |
61 | }; | |
62 | ||
63 | /* We're going to use these in the fr_subtype field to mark | |
64 | whether to keep inserted nops. */ | |
65 | ||
66 | #define NOP_KEEP 1 /* Keep these NOPS. */ | |
67 | #define NOP_DELETE 2 /* Delete these NOPS. */ | |
68 | ||
b34976b6 AM |
69 | #define DO_COUNT TRUE |
70 | #define DONT_COUNT FALSE | |
0ebb9a87 DB |
71 | |
72 | /* A list of insns within a VLIW insn. */ | |
73 | struct vliw_insn_list | |
74 | { | |
75 | /* The type of this insn. */ | |
76 | enum vliw_insn_type type; | |
77 | ||
78 | /* The corresponding gas insn information. */ | |
79 | const CGEN_INSN *insn; | |
80 | ||
81 | /* For branches and labels, the symbol that is referenced. */ | |
82 | symbolS *sym; | |
83 | ||
84 | /* For branches, the frag containing the single nop that was generated. */ | |
85 | fragS *snop_frag; | |
86 | ||
87 | /* For branches, the frag containing the double nop that was generated. */ | |
88 | fragS *dnop_frag; | |
89 | ||
90 | /* Pointer to raw data for this insn. */ | |
91 | char *address; | |
92 | ||
93 | /* Next insn in list. */ | |
94 | struct vliw_insn_list *next; | |
95 | }; | |
96 | ||
97 | static struct vliw_insn_list single_nop_insn = { | |
98 | VLIW_NOP_TYPE, NULL, NULL, NULL, NULL, NULL, NULL }; | |
99 | ||
100 | static struct vliw_insn_list double_nop_insn = { | |
101 | VLIW_NOP_TYPE, NULL, NULL, NULL, NULL, NULL, NULL }; | |
102 | ||
103 | struct vliw_chain | |
104 | { | |
105 | int num; | |
106 | int insn_count; | |
107 | struct vliw_insn_list *insn_list; | |
108 | struct vliw_chain *next; | |
109 | }; | |
110 | ||
111 | static struct vliw_chain *vliw_chain_top; | |
112 | static struct vliw_chain *current_vliw_chain; | |
113 | static struct vliw_chain *previous_vliw_chain; | |
114 | static struct vliw_insn_list *current_vliw_insn; | |
115 | ||
116 | const char comment_chars[] = ";"; | |
117 | const char line_comment_chars[] = "#"; | |
99d09cdb | 118 | const char line_separator_chars[] = "!"; |
0ebb9a87 DB |
119 | const char EXP_CHARS[] = "eE"; |
120 | const char FLT_CHARS[] = "dD"; | |
121 | ||
122 | static FRV_VLIW vliw; | |
123 | ||
124 | /* Default machine */ | |
125 | ||
126 | #ifdef DEFAULT_CPU_FRV | |
127 | #define DEFAULT_MACHINE bfd_mach_frv | |
128 | #define DEFAULT_FLAGS EF_FRV_CPU_GENERIC | |
129 | ||
130 | #else | |
131 | #ifdef DEFAULT_CPU_FR300 | |
132 | #define DEFAULT_MACHINE bfd_mach_fr300 | |
133 | #define DEFAULT_FLAGS EF_FRV_CPU_FR300 | |
134 | ||
135 | #else | |
136 | #ifdef DEFAULT_CPU_SIMPLE | |
137 | #define DEFAULT_MACHINE bfd_mach_frvsimple | |
138 | #define DEFAULT_FLAGS EF_FRV_CPU_SIMPLE | |
139 | ||
140 | #else | |
141 | #ifdef DEFAULT_CPU_TOMCAT | |
142 | #define DEFAULT_MACHINE bfd_mach_frvtomcat | |
143 | #define DEFAULT_FLAGS EF_FRV_CPU_TOMCAT | |
144 | ||
145 | #else | |
146 | #ifdef DEFAULT_CPU_FR400 | |
147 | #define DEFAULT_MACHINE bfd_mach_fr400 | |
148 | #define DEFAULT_FLAGS EF_FRV_CPU_FR400 | |
149 | ||
1ae31fee DB |
150 | #else |
151 | #ifdef DEFAULT_CPU_FR550 | |
152 | #define DEFAULT_MACHINE bfd_mach_fr550 | |
153 | #define DEFAULT_FLAGS EF_FRV_CPU_FR550 | |
154 | ||
0ebb9a87 DB |
155 | #else |
156 | #define DEFAULT_MACHINE bfd_mach_fr500 | |
157 | #define DEFAULT_FLAGS EF_FRV_CPU_FR500 | |
158 | #endif | |
159 | #endif | |
160 | #endif | |
161 | #endif | |
162 | #endif | |
1ae31fee | 163 | #endif |
0ebb9a87 | 164 | |
996991aa AO |
165 | #ifdef TE_LINUX |
166 | # define DEFAULT_FDPIC EF_FRV_FDPIC | |
167 | #else | |
168 | # define DEFAULT_FDPIC 0 | |
169 | #endif | |
170 | ||
0ebb9a87 | 171 | static unsigned long frv_mach = bfd_mach_frv; |
676a64f4 | 172 | static bfd_boolean fr400_audio; |
0ebb9a87 DB |
173 | |
174 | /* Flags to set in the elf header */ | |
996991aa | 175 | static flagword frv_flags = DEFAULT_FLAGS | DEFAULT_FDPIC; |
0ebb9a87 DB |
176 | |
177 | static int frv_user_set_flags_p = 0; | |
178 | static int frv_pic_p = 0; | |
996991aa | 179 | static const char *frv_pic_flag = DEFAULT_FDPIC ? "-mfdpic" : (const char *)0; |
0ebb9a87 DB |
180 | |
181 | /* Print tomcat-specific debugging info. */ | |
182 | static int tomcat_debug = 0; | |
183 | ||
184 | /* Tomcat-specific NOP statistics. */ | |
185 | static int tomcat_stats = 0; | |
186 | static int tomcat_doubles = 0; | |
187 | static int tomcat_singles = 0; | |
188 | ||
189 | /* Forward reference to static functions */ | |
5a49b8ac AM |
190 | static void frv_set_flags (int); |
191 | static void frv_pic_ptr (int); | |
0ebb9a87 DB |
192 | |
193 | /* The target specific pseudo-ops which we support. */ | |
194 | const pseudo_typeS md_pseudo_table[] = | |
195 | { | |
196 | { "eflags", frv_set_flags, 0 }, | |
197 | { "word", cons, 4 }, | |
198 | { "picptr", frv_pic_ptr, 4 }, | |
0ebb9a87 DB |
199 | { NULL, NULL, 0 } |
200 | }; | |
201 | ||
202 | \f | |
203 | #define FRV_SHORTOPTS "G:" | |
204 | const char * md_shortopts = FRV_SHORTOPTS; | |
205 | ||
206 | #define OPTION_GPR_32 (OPTION_MD_BASE) | |
207 | #define OPTION_GPR_64 (OPTION_MD_BASE + 1) | |
208 | #define OPTION_FPR_32 (OPTION_MD_BASE + 2) | |
209 | #define OPTION_FPR_64 (OPTION_MD_BASE + 3) | |
210 | #define OPTION_SOFT_FLOAT (OPTION_MD_BASE + 4) | |
211 | #define OPTION_DWORD_YES (OPTION_MD_BASE + 5) | |
212 | #define OPTION_DWORD_NO (OPTION_MD_BASE + 6) | |
213 | #define OPTION_DOUBLE (OPTION_MD_BASE + 7) | |
214 | #define OPTION_NO_DOUBLE (OPTION_MD_BASE + 8) | |
215 | #define OPTION_MEDIA (OPTION_MD_BASE + 9) | |
216 | #define OPTION_NO_MEDIA (OPTION_MD_BASE + 10) | |
217 | #define OPTION_CPU (OPTION_MD_BASE + 11) | |
218 | #define OPTION_PIC (OPTION_MD_BASE + 12) | |
219 | #define OPTION_BIGPIC (OPTION_MD_BASE + 13) | |
220 | #define OPTION_LIBPIC (OPTION_MD_BASE + 14) | |
221 | #define OPTION_MULADD (OPTION_MD_BASE + 15) | |
222 | #define OPTION_NO_MULADD (OPTION_MD_BASE + 16) | |
223 | #define OPTION_TOMCAT_DEBUG (OPTION_MD_BASE + 17) | |
224 | #define OPTION_TOMCAT_STATS (OPTION_MD_BASE + 18) | |
225 | #define OPTION_PACK (OPTION_MD_BASE + 19) | |
226 | #define OPTION_NO_PACK (OPTION_MD_BASE + 20) | |
99d09cdb | 227 | #define OPTION_FDPIC (OPTION_MD_BASE + 21) |
996991aa | 228 | #define OPTION_NOPIC (OPTION_MD_BASE + 22) |
0ebb9a87 DB |
229 | |
230 | struct option md_longopts[] = | |
231 | { | |
232 | { "mgpr-32", no_argument, NULL, OPTION_GPR_32 }, | |
233 | { "mgpr-64", no_argument, NULL, OPTION_GPR_64 }, | |
234 | { "mfpr-32", no_argument, NULL, OPTION_FPR_32 }, | |
235 | { "mfpr-64", no_argument, NULL, OPTION_FPR_64 }, | |
236 | { "mhard-float", no_argument, NULL, OPTION_FPR_64 }, | |
237 | { "msoft-float", no_argument, NULL, OPTION_SOFT_FLOAT }, | |
238 | { "mdword", no_argument, NULL, OPTION_DWORD_YES }, | |
239 | { "mno-dword", no_argument, NULL, OPTION_DWORD_NO }, | |
240 | { "mdouble", no_argument, NULL, OPTION_DOUBLE }, | |
241 | { "mno-double", no_argument, NULL, OPTION_NO_DOUBLE }, | |
242 | { "mmedia", no_argument, NULL, OPTION_MEDIA }, | |
243 | { "mno-media", no_argument, NULL, OPTION_NO_MEDIA }, | |
244 | { "mcpu", required_argument, NULL, OPTION_CPU }, | |
245 | { "mpic", no_argument, NULL, OPTION_PIC }, | |
246 | { "mPIC", no_argument, NULL, OPTION_BIGPIC }, | |
247 | { "mlibrary-pic", no_argument, NULL, OPTION_LIBPIC }, | |
248 | { "mmuladd", no_argument, NULL, OPTION_MULADD }, | |
249 | { "mno-muladd", no_argument, NULL, OPTION_NO_MULADD }, | |
250 | { "mtomcat-debug", no_argument, NULL, OPTION_TOMCAT_DEBUG }, | |
251 | { "mtomcat-stats", no_argument, NULL, OPTION_TOMCAT_STATS }, | |
252 | { "mpack", no_argument, NULL, OPTION_PACK }, | |
253 | { "mno-pack", no_argument, NULL, OPTION_NO_PACK }, | |
99d09cdb | 254 | { "mfdpic", no_argument, NULL, OPTION_FDPIC }, |
996991aa | 255 | { "mnopic", no_argument, NULL, OPTION_NOPIC }, |
0ebb9a87 DB |
256 | { NULL, no_argument, NULL, 0 }, |
257 | }; | |
258 | ||
259 | size_t md_longopts_size = sizeof (md_longopts); | |
260 | ||
261 | /* What value to give to bfd_set_gp_size. */ | |
262 | static int g_switch_value = 8; | |
263 | ||
264 | int | |
5a49b8ac | 265 | md_parse_option (int c, char *arg) |
0ebb9a87 DB |
266 | { |
267 | switch (c) | |
268 | { | |
269 | default: | |
270 | return 0; | |
271 | ||
272 | case 'G': | |
273 | g_switch_value = atoi (arg); | |
274 | if (! g_switch_value) | |
275 | frv_flags |= EF_FRV_G0; | |
276 | break; | |
277 | ||
278 | case OPTION_GPR_32: | |
279 | frv_flags = (frv_flags & ~EF_FRV_GPR_MASK) | EF_FRV_GPR_32; | |
280 | break; | |
281 | ||
282 | case OPTION_GPR_64: | |
283 | frv_flags = (frv_flags & ~EF_FRV_GPR_MASK) | EF_FRV_GPR_64; | |
284 | break; | |
285 | ||
286 | case OPTION_FPR_32: | |
287 | frv_flags = (frv_flags & ~EF_FRV_FPR_MASK) | EF_FRV_FPR_32; | |
288 | break; | |
289 | ||
290 | case OPTION_FPR_64: | |
291 | frv_flags = (frv_flags & ~EF_FRV_FPR_MASK) | EF_FRV_FPR_64; | |
292 | break; | |
293 | ||
294 | case OPTION_SOFT_FLOAT: | |
295 | frv_flags = (frv_flags & ~EF_FRV_FPR_MASK) | EF_FRV_FPR_NONE; | |
296 | break; | |
297 | ||
298 | case OPTION_DWORD_YES: | |
299 | frv_flags = (frv_flags & ~EF_FRV_DWORD_MASK) | EF_FRV_DWORD_YES; | |
300 | break; | |
301 | ||
302 | case OPTION_DWORD_NO: | |
303 | frv_flags = (frv_flags & ~EF_FRV_DWORD_MASK) | EF_FRV_DWORD_NO; | |
304 | break; | |
305 | ||
306 | case OPTION_DOUBLE: | |
307 | frv_flags |= EF_FRV_DOUBLE; | |
308 | break; | |
309 | ||
310 | case OPTION_NO_DOUBLE: | |
311 | frv_flags &= ~EF_FRV_DOUBLE; | |
312 | break; | |
313 | ||
314 | case OPTION_MEDIA: | |
315 | frv_flags |= EF_FRV_MEDIA; | |
316 | break; | |
317 | ||
318 | case OPTION_NO_MEDIA: | |
319 | frv_flags &= ~EF_FRV_MEDIA; | |
320 | break; | |
321 | ||
322 | case OPTION_MULADD: | |
323 | frv_flags |= EF_FRV_MULADD; | |
324 | break; | |
325 | ||
326 | case OPTION_NO_MULADD: | |
327 | frv_flags &= ~EF_FRV_MULADD; | |
328 | break; | |
329 | ||
330 | case OPTION_PACK: | |
331 | frv_flags &= ~EF_FRV_NOPACK; | |
332 | break; | |
333 | ||
334 | case OPTION_NO_PACK: | |
335 | frv_flags |= EF_FRV_NOPACK; | |
336 | break; | |
337 | ||
338 | case OPTION_CPU: | |
339 | { | |
340 | char *p; | |
341 | int cpu_flags = EF_FRV_CPU_GENERIC; | |
342 | ||
343 | /* Identify the processor type */ | |
344 | p = arg; | |
345 | if (strcmp (p, "frv") == 0) | |
346 | { | |
347 | cpu_flags = EF_FRV_CPU_GENERIC; | |
348 | frv_mach = bfd_mach_frv; | |
349 | } | |
350 | ||
351 | else if (strcmp (p, "fr500") == 0) | |
352 | { | |
353 | cpu_flags = EF_FRV_CPU_FR500; | |
354 | frv_mach = bfd_mach_fr500; | |
355 | } | |
356 | ||
1ae31fee DB |
357 | else if (strcmp (p, "fr550") == 0) |
358 | { | |
359 | cpu_flags = EF_FRV_CPU_FR550; | |
360 | frv_mach = bfd_mach_fr550; | |
361 | } | |
362 | ||
676a64f4 RS |
363 | else if (strcmp (p, "fr450") == 0) |
364 | { | |
365 | cpu_flags = EF_FRV_CPU_FR450; | |
366 | frv_mach = bfd_mach_fr450; | |
367 | } | |
368 | ||
369 | else if (strcmp (p, "fr405") == 0) | |
370 | { | |
371 | cpu_flags = EF_FRV_CPU_FR405; | |
372 | frv_mach = bfd_mach_fr400; | |
373 | fr400_audio = TRUE; | |
374 | } | |
375 | ||
0ebb9a87 DB |
376 | else if (strcmp (p, "fr400") == 0) |
377 | { | |
378 | cpu_flags = EF_FRV_CPU_FR400; | |
379 | frv_mach = bfd_mach_fr400; | |
676a64f4 | 380 | fr400_audio = FALSE; |
0ebb9a87 DB |
381 | } |
382 | ||
383 | else if (strcmp (p, "fr300") == 0) | |
384 | { | |
385 | cpu_flags = EF_FRV_CPU_FR300; | |
386 | frv_mach = bfd_mach_fr300; | |
387 | } | |
388 | ||
389 | else if (strcmp (p, "simple") == 0) | |
390 | { | |
391 | cpu_flags = EF_FRV_CPU_SIMPLE; | |
392 | frv_mach = bfd_mach_frvsimple; | |
393 | frv_flags |= EF_FRV_NOPACK; | |
394 | } | |
395 | ||
396 | else if (strcmp (p, "tomcat") == 0) | |
397 | { | |
398 | cpu_flags = EF_FRV_CPU_TOMCAT; | |
399 | frv_mach = bfd_mach_frvtomcat; | |
400 | } | |
401 | ||
402 | else | |
403 | { | |
bd3ba5d1 | 404 | as_fatal (_("Unknown cpu -mcpu=%s"), arg); |
0ebb9a87 DB |
405 | return 0; |
406 | } | |
407 | ||
408 | frv_flags = (frv_flags & ~EF_FRV_CPU_MASK) | cpu_flags; | |
409 | } | |
410 | break; | |
411 | ||
412 | case OPTION_PIC: | |
413 | frv_flags |= EF_FRV_PIC; | |
414 | frv_pic_p = 1; | |
415 | frv_pic_flag = "-fpic"; | |
416 | break; | |
417 | ||
418 | case OPTION_BIGPIC: | |
419 | frv_flags |= EF_FRV_BIGPIC; | |
420 | frv_pic_p = 1; | |
421 | frv_pic_flag = "-fPIC"; | |
422 | break; | |
423 | ||
424 | case OPTION_LIBPIC: | |
425 | frv_flags |= (EF_FRV_LIBPIC | EF_FRV_G0); | |
426 | frv_pic_p = 1; | |
427 | frv_pic_flag = "-mlibrary-pic"; | |
428 | g_switch_value = 0; | |
429 | break; | |
430 | ||
99d09cdb AO |
431 | case OPTION_FDPIC: |
432 | frv_flags |= EF_FRV_FDPIC; | |
433 | frv_pic_flag = "-mfdpic"; | |
434 | break; | |
435 | ||
996991aa AO |
436 | case OPTION_NOPIC: |
437 | frv_flags &= ~(EF_FRV_FDPIC | EF_FRV_PIC | |
438 | | EF_FRV_BIGPIC | EF_FRV_LIBPIC); | |
439 | frv_pic_flag = 0; | |
440 | break; | |
441 | ||
0ebb9a87 DB |
442 | case OPTION_TOMCAT_DEBUG: |
443 | tomcat_debug = 1; | |
444 | break; | |
445 | ||
446 | case OPTION_TOMCAT_STATS: | |
447 | tomcat_stats = 1; | |
448 | break; | |
449 | } | |
450 | ||
451 | return 1; | |
452 | } | |
453 | ||
454 | void | |
42477147 | 455 | md_show_usage (FILE * stream) |
0ebb9a87 DB |
456 | { |
457 | fprintf (stream, _("FRV specific command line options:\n")); | |
42477147 NC |
458 | fprintf (stream, _("-G n Put data <= n bytes in the small data area\n")); |
459 | fprintf (stream, _("-mgpr-32 Mark generated file as only using 32 GPRs\n")); | |
460 | fprintf (stream, _("-mgpr-64 Mark generated file as using all 64 GPRs\n")); | |
461 | fprintf (stream, _("-mfpr-32 Mark generated file as only using 32 FPRs\n")); | |
462 | fprintf (stream, _("-mfpr-64 Mark generated file as using all 64 FPRs\n")); | |
463 | fprintf (stream, _("-msoft-float Mark generated file as using software FP\n")); | |
464 | fprintf (stream, _("-mdword Mark generated file as using a 8-byte stack alignment\n")); | |
465 | fprintf (stream, _("-mno-dword Mark generated file as using a 4-byte stack alignment\n")); | |
466 | fprintf (stream, _("-mdouble Mark generated file as using double precision FP insns\n")); | |
467 | fprintf (stream, _("-mmedia Mark generated file as using media insns\n")); | |
468 | fprintf (stream, _("-mmuladd Mark generated file as using multiply add/subtract insns\n")); | |
469 | fprintf (stream, _("-mpack Allow instructions to be packed\n")); | |
470 | fprintf (stream, _("-mno-pack Do not allow instructions to be packed\n")); | |
471 | fprintf (stream, _("-mpic Mark generated file as using small position independent code\n")); | |
472 | fprintf (stream, _("-mPIC Mark generated file as using large position independent code\n")); | |
473 | fprintf (stream, _("-mlibrary-pic Mark generated file as using position indepedent code for libraries\n")); | |
474 | fprintf (stream, _("-mfdpic Assemble for the FDPIC ABI\n")); | |
475 | fprintf (stream, _("-mnopic Disable -mpic, -mPIC, -mlibrary-pic and -mfdpic\n")); | |
676a64f4 | 476 | fprintf (stream, _("-mcpu={fr500|fr550|fr400|fr405|fr450|fr300|frv|simple|tomcat}\n")); |
42477147 NC |
477 | fprintf (stream, _(" Record the cpu type\n")); |
478 | fprintf (stream, _("-mtomcat-stats Print out stats for tomcat workarounds\n")); | |
479 | fprintf (stream, _("-mtomcat-debug Debug tomcat workarounds\n")); | |
0ebb9a87 DB |
480 | } |
481 | ||
482 | \f | |
483 | void | |
5a49b8ac | 484 | md_begin (void) |
0ebb9a87 DB |
485 | { |
486 | /* Initialize the `cgen' interface. */ | |
487 | ||
488 | /* Set the machine number and endian. */ | |
489 | gas_cgen_cpu_desc = frv_cgen_cpu_open (CGEN_CPU_OPEN_MACHS, 0, | |
490 | CGEN_CPU_OPEN_ENDIAN, | |
491 | CGEN_ENDIAN_BIG, | |
492 | CGEN_CPU_OPEN_END); | |
493 | frv_cgen_init_asm (gas_cgen_cpu_desc); | |
494 | ||
495 | /* This is a callback from cgen to gas to parse operands. */ | |
496 | cgen_set_parse_operand_fn (gas_cgen_cpu_desc, gas_cgen_parse_operand); | |
497 | ||
498 | /* Set the ELF flags if desired. */ | |
499 | if (frv_flags) | |
500 | bfd_set_private_flags (stdoutput, frv_flags); | |
501 | ||
502 | /* Set the machine type */ | |
503 | bfd_default_set_arch_mach (stdoutput, bfd_arch_frv, frv_mach); | |
504 | ||
505 | /* Set up gp size so we can put local common items in .sbss */ | |
506 | bfd_set_gp_size (stdoutput, g_switch_value); | |
507 | ||
508 | frv_vliw_reset (& vliw, frv_mach, frv_flags); | |
509 | } | |
510 | ||
996991aa AO |
511 | bfd_boolean |
512 | frv_md_fdpic_enabled (void) | |
513 | { | |
514 | return (frv_flags & EF_FRV_FDPIC) != 0; | |
515 | } | |
516 | ||
0ebb9a87 DB |
517 | int chain_num = 0; |
518 | ||
5a49b8ac AM |
519 | static struct vliw_insn_list * |
520 | frv_insert_vliw_insn (bfd_boolean count) | |
0ebb9a87 DB |
521 | { |
522 | struct vliw_insn_list *vliw_insn_list_entry; | |
523 | struct vliw_chain *vliw_chain_entry; | |
524 | ||
525 | if (current_vliw_chain == NULL) | |
526 | { | |
527 | vliw_chain_entry = (struct vliw_chain *) xmalloc (sizeof (struct vliw_chain)); | |
528 | vliw_chain_entry->insn_count = 0; | |
529 | vliw_chain_entry->insn_list = NULL; | |
530 | vliw_chain_entry->next = NULL; | |
531 | vliw_chain_entry->num = chain_num++; | |
532 | ||
533 | if (!vliw_chain_top) | |
534 | vliw_chain_top = vliw_chain_entry; | |
535 | current_vliw_chain = vliw_chain_entry; | |
536 | if (previous_vliw_chain) | |
537 | previous_vliw_chain->next = vliw_chain_entry; | |
538 | } | |
539 | ||
540 | vliw_insn_list_entry = (struct vliw_insn_list *) xmalloc (sizeof (struct vliw_insn_list)); | |
541 | vliw_insn_list_entry->type = VLIW_GENERIC_TYPE; | |
542 | vliw_insn_list_entry->insn = NULL; | |
543 | vliw_insn_list_entry->sym = NULL; | |
544 | vliw_insn_list_entry->snop_frag = NULL; | |
545 | vliw_insn_list_entry->dnop_frag = NULL; | |
546 | vliw_insn_list_entry->next = NULL; | |
547 | ||
548 | if (count) | |
549 | current_vliw_chain->insn_count++; | |
550 | ||
551 | if (current_vliw_insn) | |
552 | current_vliw_insn->next = vliw_insn_list_entry; | |
553 | current_vliw_insn = vliw_insn_list_entry; | |
554 | ||
555 | if (!current_vliw_chain->insn_list) | |
556 | current_vliw_chain->insn_list = current_vliw_insn; | |
557 | ||
558 | return vliw_insn_list_entry; | |
559 | } | |
560 | ||
561 | /* Identify the following cases: | |
562 | ||
563 | 1) A VLIW insn that contains both a branch and the branch destination. | |
564 | This requires the insertion of two vliw instructions before the | |
565 | branch. The first consists of two nops. The second consists of | |
566 | a single nop. | |
567 | ||
568 | 2) A single instruction VLIW insn which is the destination of a branch | |
569 | that is in the next VLIW insn. This requires the insertion of a vliw | |
570 | insn containing two nops before the branch. | |
571 | ||
572 | 3) A double instruction VLIW insn which contains the destination of a | |
573 | branch that is in the next VLIW insn. This requires the insertion of | |
574 | a VLIW insn containing a single nop before the branch. | |
575 | ||
576 | 4) A single instruction VLIW insn which contains branch destination (x), | |
577 | followed by a single instruction VLIW insn which does not contain | |
578 | the branch to (x), followed by a VLIW insn which does contain the branch | |
579 | to (x). This requires the insertion of a VLIW insn containing a single | |
580 | nop before the VLIW instruction containing the branch. | |
581 | ||
582 | */ | |
583 | #define FRV_IS_NOP(insn) (insn.buffer[0] == FRV_NOP_PACK || insn.buffer[0] == FRV_NOP_NOPACK) | |
584 | #define FRV_NOP_PACK 0x00880000 /* ori.p gr0,0,gr0 */ | |
585 | #define FRV_NOP_NOPACK 0x80880000 /* ori gr0,0,gr0 */ | |
586 | ||
587 | /* Check a vliw insn for an insn of type containing the sym passed in label_sym. */ | |
588 | ||
589 | static struct vliw_insn_list * | |
5a49b8ac AM |
590 | frv_find_in_vliw (enum vliw_insn_type vliw_insn_type, |
591 | struct vliw_chain *this_chain, | |
592 | symbolS *label_sym) | |
0ebb9a87 DB |
593 | { |
594 | ||
595 | struct vliw_insn_list *the_insn; | |
596 | ||
597 | if (!this_chain) | |
598 | return NULL; | |
599 | ||
600 | for (the_insn = this_chain->insn_list; the_insn; the_insn = the_insn->next) | |
601 | { | |
602 | if (the_insn->type == vliw_insn_type | |
603 | && the_insn->sym == label_sym) | |
604 | return the_insn; | |
605 | } | |
606 | ||
607 | return NULL; | |
608 | } | |
609 | ||
610 | enum vliw_nop_type | |
611 | { | |
612 | /* A Vliw insn containing a single nop insn. */ | |
613 | VLIW_SINGLE_NOP, | |
614 | ||
615 | /* A Vliw insn containing two nop insns. */ | |
616 | VLIW_DOUBLE_NOP, | |
617 | ||
618 | /* Two vliw insns. The first containing two nop insns. | |
619 | The second contain a single nop insn. */ | |
620 | VLIW_DOUBLE_THEN_SINGLE_NOP | |
621 | }; | |
622 | ||
623 | static void | |
5a49b8ac | 624 | frv_debug_tomcat (struct vliw_chain *start_chain) |
0ebb9a87 DB |
625 | { |
626 | struct vliw_chain *this_chain; | |
627 | struct vliw_insn_list *this_insn; | |
628 | int i = 1; | |
629 | ||
630 | for (this_chain = start_chain; this_chain; this_chain = this_chain->next, i++) | |
631 | { | |
632 | fprintf (stderr, "\nVliw Insn #%d, #insns: %d\n", i, this_chain->insn_count); | |
633 | ||
634 | for (this_insn = this_chain->insn_list; this_insn; this_insn = this_insn->next) | |
635 | { | |
636 | if (this_insn->type == VLIW_LABEL_TYPE) | |
8ad7c533 | 637 | fprintf (stderr, "Label Value: %p\n", this_insn->sym); |
0ebb9a87 | 638 | else if (this_insn->type == VLIW_BRANCH_TYPE) |
8ad7c533 | 639 | fprintf (stderr, "%s to %p\n", this_insn->insn->base->name, this_insn->sym); |
0ebb9a87 | 640 | else if (this_insn->type == VLIW_BRANCH_HAS_NOPS) |
8ad7c533 | 641 | fprintf (stderr, "nop'd %s to %p\n", this_insn->insn->base->name, this_insn->sym); |
0ebb9a87 DB |
642 | else if (this_insn->type == VLIW_NOP_TYPE) |
643 | fprintf (stderr, "Nop\n"); | |
644 | else | |
645 | fprintf (stderr, " %s\n", this_insn->insn->base->name); | |
646 | } | |
647 | } | |
648 | } | |
649 | ||
0ebb9a87 | 650 | static void |
5a49b8ac | 651 | frv_adjust_vliw_count (struct vliw_chain *this_chain) |
0ebb9a87 DB |
652 | { |
653 | struct vliw_insn_list *this_insn; | |
654 | ||
655 | this_chain->insn_count = 0; | |
656 | ||
657 | for (this_insn = this_chain->insn_list; | |
658 | this_insn; | |
659 | this_insn = this_insn->next) | |
660 | { | |
661 | if (this_insn->type != VLIW_LABEL_TYPE) | |
662 | this_chain->insn_count++; | |
663 | } | |
664 | ||
665 | } | |
666 | ||
667 | /* Insert the desired nop combination in the vliw chain before insert_before_insn. | |
668 | Rechain the vliw insn. */ | |
669 | ||
0ebb9a87 | 670 | static struct vliw_chain * |
5a49b8ac AM |
671 | frv_tomcat_shuffle (enum vliw_nop_type this_nop_type, |
672 | struct vliw_chain *vliw_to_split, | |
673 | struct vliw_insn_list *insert_before_insn) | |
0ebb9a87 DB |
674 | { |
675 | ||
b34976b6 | 676 | bfd_boolean pack_prev = FALSE; |
0ebb9a87 DB |
677 | struct vliw_chain *return_me = NULL; |
678 | struct vliw_insn_list *prev_insn = NULL; | |
679 | struct vliw_insn_list *curr_insn = vliw_to_split->insn_list; | |
680 | ||
681 | struct vliw_chain *double_nop = (struct vliw_chain *) xmalloc (sizeof (struct vliw_chain)); | |
682 | struct vliw_chain *single_nop = (struct vliw_chain *) xmalloc (sizeof (struct vliw_chain)); | |
683 | struct vliw_chain *second_part = (struct vliw_chain *) xmalloc (sizeof (struct vliw_chain)); | |
684 | struct vliw_chain *curr_vliw = vliw_chain_top; | |
685 | struct vliw_chain *prev_vliw = NULL; | |
686 | ||
687 | while (curr_insn && curr_insn != insert_before_insn) | |
688 | { | |
689 | /* We can't set the packing bit on a label. If we have the case | |
690 | label 1: | |
691 | label 2: | |
692 | label 3: | |
693 | branch that needs nops | |
694 | Then don't set pack bit later. */ | |
695 | ||
696 | if (curr_insn->type != VLIW_LABEL_TYPE) | |
b34976b6 | 697 | pack_prev = TRUE; |
0ebb9a87 DB |
698 | prev_insn = curr_insn; |
699 | curr_insn = curr_insn->next; | |
700 | } | |
701 | ||
702 | while (curr_vliw && curr_vliw != vliw_to_split) | |
703 | { | |
704 | prev_vliw = curr_vliw; | |
705 | curr_vliw = curr_vliw->next; | |
706 | } | |
707 | ||
708 | switch (this_nop_type) | |
709 | { | |
710 | case VLIW_SINGLE_NOP: | |
711 | if (!prev_insn) | |
712 | { | |
713 | /* Branch is first, Insert the NOP prior to this vliw insn. */ | |
714 | if (prev_vliw) | |
715 | prev_vliw->next = single_nop; | |
716 | else | |
717 | vliw_chain_top = single_nop; | |
718 | single_nop->next = vliw_to_split; | |
719 | vliw_to_split->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
720 | return_me = vliw_to_split; | |
721 | } | |
722 | else | |
723 | { | |
724 | /* Set the packing bit on the previous insn. */ | |
725 | if (pack_prev) | |
726 | { | |
2132e3a3 | 727 | char *buffer = prev_insn->address; |
0ebb9a87 DB |
728 | buffer[0] |= 0x80; |
729 | } | |
730 | /* The branch is in the middle. Split this vliw insn into first | |
731 | and second parts. Insert the NOP inbetween. */ | |
732 | ||
733 | second_part->insn_list = insert_before_insn; | |
734 | second_part->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
735 | second_part->next = vliw_to_split->next; | |
736 | frv_adjust_vliw_count (second_part); | |
737 | ||
738 | single_nop->next = second_part; | |
739 | ||
740 | vliw_to_split->next = single_nop; | |
741 | prev_insn->next = NULL; | |
742 | ||
743 | return_me = second_part; | |
744 | frv_adjust_vliw_count (vliw_to_split); | |
745 | } | |
746 | break; | |
747 | ||
748 | case VLIW_DOUBLE_NOP: | |
749 | if (!prev_insn) | |
750 | { | |
751 | /* Branch is first, Insert the NOP prior to this vliw insn. */ | |
752 | if (prev_vliw) | |
753 | prev_vliw->next = double_nop; | |
754 | else | |
755 | vliw_chain_top = double_nop; | |
756 | ||
757 | double_nop->next = vliw_to_split; | |
758 | return_me = vliw_to_split; | |
759 | vliw_to_split->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
760 | } | |
761 | else | |
762 | { | |
763 | /* Set the packing bit on the previous insn. */ | |
764 | if (pack_prev) | |
765 | { | |
2132e3a3 | 766 | char *buffer = prev_insn->address; |
0ebb9a87 DB |
767 | buffer[0] |= 0x80; |
768 | } | |
769 | ||
770 | /* The branch is in the middle. Split this vliw insn into first | |
771 | and second parts. Insert the NOP inbetween. */ | |
772 | second_part->insn_list = insert_before_insn; | |
773 | second_part->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
774 | second_part->next = vliw_to_split->next; | |
775 | frv_adjust_vliw_count (second_part); | |
776 | ||
777 | double_nop->next = second_part; | |
778 | ||
779 | vliw_to_split->next = single_nop; | |
780 | prev_insn->next = NULL; | |
781 | frv_adjust_vliw_count (vliw_to_split); | |
782 | ||
783 | return_me = second_part; | |
784 | } | |
785 | break; | |
786 | ||
787 | case VLIW_DOUBLE_THEN_SINGLE_NOP: | |
788 | double_nop->next = single_nop; | |
789 | double_nop->insn_count = 2; | |
790 | double_nop->insn_list = &double_nop_insn; | |
791 | single_nop->insn_count = 1; | |
792 | single_nop->insn_list = &single_nop_insn; | |
793 | ||
794 | if (!prev_insn) | |
795 | { | |
796 | /* The branch is the first insn in this vliw. Don't split the vliw. Insert | |
797 | the nops prior to this vliw. */ | |
798 | if (prev_vliw) | |
799 | prev_vliw->next = double_nop; | |
800 | else | |
801 | vliw_chain_top = double_nop; | |
802 | ||
803 | single_nop->next = vliw_to_split; | |
804 | return_me = vliw_to_split; | |
805 | vliw_to_split->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
806 | } | |
807 | else | |
808 | { | |
809 | /* Set the packing bit on the previous insn. */ | |
810 | if (pack_prev) | |
811 | { | |
2132e3a3 | 812 | char *buffer = prev_insn->address; |
0ebb9a87 DB |
813 | buffer[0] |= 0x80; |
814 | } | |
815 | ||
816 | /* The branch is in the middle of this vliw insn. Split into first and | |
817 | second parts. Insert the nop vliws in between. */ | |
818 | second_part->insn_list = insert_before_insn; | |
819 | second_part->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
820 | second_part->next = vliw_to_split->next; | |
821 | frv_adjust_vliw_count (second_part); | |
822 | ||
823 | single_nop->next = second_part; | |
824 | ||
825 | vliw_to_split->next = double_nop; | |
826 | prev_insn->next = NULL; | |
827 | frv_adjust_vliw_count (vliw_to_split); | |
828 | ||
829 | return_me = second_part; | |
830 | } | |
831 | break; | |
832 | } | |
833 | ||
834 | return return_me; | |
835 | } | |
836 | ||
837 | static void | |
5a49b8ac | 838 | frv_tomcat_analyze_vliw_chains (void) |
0ebb9a87 DB |
839 | { |
840 | struct vliw_chain *vliw1 = NULL; | |
841 | struct vliw_chain *vliw2 = NULL; | |
842 | struct vliw_chain *vliw3 = NULL; | |
843 | ||
844 | struct vliw_insn_list *this_insn = NULL; | |
845 | struct vliw_insn_list *temp_insn = NULL; | |
846 | ||
847 | /* We potentially need to look at three VLIW insns to determine if the | |
848 | workaround is required. Set them up. Ignore existing nops during analysis. */ | |
849 | ||
850 | #define FRV_SET_VLIW_WINDOW(VLIW1, VLIW2, VLIW3) \ | |
851 | if (VLIW1 && VLIW1->next) \ | |
852 | VLIW2 = VLIW1->next; \ | |
853 | else \ | |
854 | VLIW2 = NULL; \ | |
855 | if (VLIW2 && VLIW2->next) \ | |
856 | VLIW3 = VLIW2->next; \ | |
857 | else \ | |
858 | VLIW3 = NULL | |
859 | ||
860 | vliw1 = vliw_chain_top; | |
861 | ||
862 | workaround_top: | |
863 | ||
864 | FRV_SET_VLIW_WINDOW (vliw1, vliw2, vliw3); | |
865 | ||
866 | if (!vliw1) | |
867 | return; | |
868 | ||
869 | if (vliw1->insn_count == 1) | |
870 | { | |
871 | /* check vliw1 for a label. */ | |
872 | if (vliw1->insn_list->type == VLIW_LABEL_TYPE) | |
873 | { | |
874 | temp_insn = frv_find_in_vliw (VLIW_BRANCH_TYPE, vliw2, vliw1->insn_list->sym); | |
875 | if (temp_insn) | |
876 | { | |
877 | vliw1 = frv_tomcat_shuffle (VLIW_DOUBLE_NOP, vliw2, vliw1->insn_list); | |
878 | temp_insn->dnop_frag->fr_subtype = NOP_KEEP; | |
879 | vliw1 = vliw1->next; | |
880 | if (tomcat_stats) | |
881 | tomcat_doubles++; | |
882 | goto workaround_top; | |
883 | } | |
884 | else if (vliw2 | |
885 | && vliw2->insn_count == 1 | |
886 | && (temp_insn = frv_find_in_vliw (VLIW_BRANCH_TYPE, vliw3, vliw1->insn_list->sym)) != NULL) | |
887 | { | |
888 | temp_insn->snop_frag->fr_subtype = NOP_KEEP; | |
889 | vliw1 = frv_tomcat_shuffle (VLIW_SINGLE_NOP, vliw3, vliw3->insn_list); | |
890 | if (tomcat_stats) | |
891 | tomcat_singles++; | |
892 | goto workaround_top; | |
893 | } | |
894 | } | |
895 | } | |
896 | ||
897 | if (vliw1->insn_count == 2) | |
898 | { | |
91d6fa6a | 899 | /* Check vliw1 for a label. */ |
0ebb9a87 DB |
900 | for (this_insn = vliw1->insn_list; this_insn; this_insn = this_insn->next) |
901 | { | |
902 | if (this_insn->type == VLIW_LABEL_TYPE) | |
903 | { | |
a08333bb | 904 | if ((temp_insn = frv_find_in_vliw (VLIW_BRANCH_TYPE, vliw2, this_insn->sym)) != NULL) |
0ebb9a87 DB |
905 | { |
906 | temp_insn->snop_frag->fr_subtype = NOP_KEEP; | |
907 | vliw1 = frv_tomcat_shuffle (VLIW_SINGLE_NOP, vliw2, this_insn); | |
908 | if (tomcat_stats) | |
909 | tomcat_singles++; | |
910 | } | |
911 | else | |
912 | vliw1 = vliw1->next; | |
913 | goto workaround_top; | |
914 | } | |
915 | } | |
916 | } | |
917 | /* Examine each insn in this VLIW. Look for the workaround criteria. */ | |
918 | for (this_insn = vliw1->insn_list; this_insn; this_insn = this_insn->next) | |
919 | { | |
920 | /* Don't look at labels or nops. */ | |
921 | while (this_insn | |
922 | && (this_insn->type == VLIW_LABEL_TYPE | |
923 | || this_insn->type == VLIW_NOP_TYPE | |
924 | || this_insn->type == VLIW_BRANCH_HAS_NOPS)) | |
925 | this_insn = this_insn->next; | |
926 | ||
927 | if (!this_insn) | |
928 | { | |
929 | vliw1 = vliw2; | |
930 | goto workaround_top; | |
931 | } | |
932 | ||
933 | if (frv_is_branch_insn (this_insn->insn)) | |
934 | { | |
a08333bb | 935 | if ((temp_insn = frv_find_in_vliw (VLIW_LABEL_TYPE, vliw1, this_insn->sym)) != NULL) |
0ebb9a87 DB |
936 | { |
937 | /* Insert [nop/nop] [nop] before branch. */ | |
938 | this_insn->snop_frag->fr_subtype = NOP_KEEP; | |
939 | this_insn->dnop_frag->fr_subtype = NOP_KEEP; | |
940 | vliw1 = frv_tomcat_shuffle (VLIW_DOUBLE_THEN_SINGLE_NOP, vliw1, this_insn); | |
941 | goto workaround_top; | |
942 | } | |
943 | } | |
944 | ||
945 | ||
946 | } | |
947 | /* This vliw insn checks out okay. Take a look at the next one. */ | |
948 | vliw1 = vliw1->next; | |
949 | goto workaround_top; | |
950 | } | |
951 | ||
952 | void | |
5a49b8ac | 953 | frv_tomcat_workaround (void) |
0ebb9a87 DB |
954 | { |
955 | if (frv_mach != bfd_mach_frvtomcat) | |
956 | return; | |
957 | ||
958 | if (tomcat_debug) | |
959 | frv_debug_tomcat (vliw_chain_top); | |
960 | ||
961 | frv_tomcat_analyze_vliw_chains (); | |
962 | ||
963 | if (tomcat_stats) | |
964 | { | |
965 | fprintf (stderr, "Inserted %d Single Nops\n", tomcat_singles); | |
966 | fprintf (stderr, "Inserted %d Double Nops\n", tomcat_doubles); | |
967 | } | |
968 | } | |
969 | ||
1ae31fee DB |
970 | static int |
971 | fr550_check_insn_acc_range (frv_insn *insn, int low, int hi) | |
972 | { | |
973 | int acc; | |
974 | switch (CGEN_INSN_NUM (insn->insn)) | |
975 | { | |
976 | case FRV_INSN_MADDACCS: | |
977 | case FRV_INSN_MSUBACCS: | |
978 | case FRV_INSN_MDADDACCS: | |
979 | case FRV_INSN_MDSUBACCS: | |
980 | case FRV_INSN_MASACCS: | |
981 | case FRV_INSN_MDASACCS: | |
982 | acc = insn->fields.f_ACC40Si; | |
983 | if (acc < low || acc > hi) | |
984 | return 1; /* out of range */ | |
985 | acc = insn->fields.f_ACC40Sk; | |
986 | if (acc < low || acc > hi) | |
987 | return 1; /* out of range */ | |
988 | break; | |
989 | case FRV_INSN_MMULHS: | |
990 | case FRV_INSN_MMULHU: | |
991 | case FRV_INSN_MMULXHS: | |
992 | case FRV_INSN_MMULXHU: | |
993 | case FRV_INSN_CMMULHS: | |
994 | case FRV_INSN_CMMULHU: | |
995 | case FRV_INSN_MQMULHS: | |
996 | case FRV_INSN_MQMULHU: | |
997 | case FRV_INSN_MQMULXHS: | |
998 | case FRV_INSN_MQMULXHU: | |
999 | case FRV_INSN_CMQMULHS: | |
1000 | case FRV_INSN_CMQMULHU: | |
1001 | case FRV_INSN_MMACHS: | |
1002 | case FRV_INSN_MMRDHS: | |
1003 | case FRV_INSN_CMMACHS: | |
1004 | case FRV_INSN_MQMACHS: | |
1005 | case FRV_INSN_CMQMACHS: | |
1006 | case FRV_INSN_MQXMACHS: | |
1007 | case FRV_INSN_MQXMACXHS: | |
1008 | case FRV_INSN_MQMACXHS: | |
1009 | case FRV_INSN_MCPXRS: | |
1010 | case FRV_INSN_MCPXIS: | |
1011 | case FRV_INSN_CMCPXRS: | |
1012 | case FRV_INSN_CMCPXIS: | |
1013 | case FRV_INSN_MQCPXRS: | |
1014 | case FRV_INSN_MQCPXIS: | |
1015 | acc = insn->fields.f_ACC40Sk; | |
1016 | if (acc < low || acc > hi) | |
1017 | return 1; /* out of range */ | |
1018 | break; | |
1019 | case FRV_INSN_MMACHU: | |
1020 | case FRV_INSN_MMRDHU: | |
1021 | case FRV_INSN_CMMACHU: | |
1022 | case FRV_INSN_MQMACHU: | |
1023 | case FRV_INSN_CMQMACHU: | |
1024 | case FRV_INSN_MCPXRU: | |
1025 | case FRV_INSN_MCPXIU: | |
1026 | case FRV_INSN_CMCPXRU: | |
1027 | case FRV_INSN_CMCPXIU: | |
1028 | case FRV_INSN_MQCPXRU: | |
1029 | case FRV_INSN_MQCPXIU: | |
1030 | acc = insn->fields.f_ACC40Uk; | |
1031 | if (acc < low || acc > hi) | |
1032 | return 1; /* out of range */ | |
1033 | break; | |
1034 | default: | |
1035 | break; | |
1036 | } | |
1037 | return 0; /* all is ok */ | |
1038 | } | |
1039 | ||
1040 | static int | |
91d6fa6a | 1041 | fr550_check_acc_range (FRV_VLIW *vlw, frv_insn *insn) |
1ae31fee | 1042 | { |
91d6fa6a | 1043 | switch ((*vlw->current_vliw)[vlw->next_slot - 1]) |
1ae31fee DB |
1044 | { |
1045 | case UNIT_FM0: | |
1046 | case UNIT_FM2: | |
1047 | return fr550_check_insn_acc_range (insn, 0, 3); | |
1048 | case UNIT_FM1: | |
1049 | case UNIT_FM3: | |
1050 | return fr550_check_insn_acc_range (insn, 4, 7); | |
1051 | default: | |
1052 | break; | |
1053 | } | |
1054 | return 0; /* all is ok */ | |
1055 | } | |
1056 | ||
676a64f4 RS |
1057 | /* Return true if the target implements instruction INSN. */ |
1058 | ||
1059 | static bfd_boolean | |
1060 | target_implements_insn_p (const CGEN_INSN *insn) | |
1061 | { | |
1062 | switch (frv_mach) | |
1063 | { | |
1064 | default: | |
1065 | /* bfd_mach_frv or generic. */ | |
1066 | return TRUE; | |
1067 | ||
1068 | case bfd_mach_fr300: | |
1069 | case bfd_mach_frvsimple: | |
1070 | return CGEN_INSN_MACH_HAS_P (insn, MACH_SIMPLE); | |
1071 | ||
1072 | case bfd_mach_fr400: | |
1073 | return ((fr400_audio || !CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_AUDIO)) | |
1074 | && CGEN_INSN_MACH_HAS_P (insn, MACH_FR400)); | |
1075 | ||
1076 | case bfd_mach_fr450: | |
1077 | return CGEN_INSN_MACH_HAS_P (insn, MACH_FR450); | |
1078 | ||
1079 | case bfd_mach_fr500: | |
1080 | return CGEN_INSN_MACH_HAS_P (insn, MACH_FR500); | |
1081 | ||
1082 | case bfd_mach_fr550: | |
1083 | return CGEN_INSN_MACH_HAS_P (insn, MACH_FR550); | |
1084 | } | |
1085 | } | |
1086 | ||
0ebb9a87 | 1087 | void |
5a49b8ac | 1088 | md_assemble (char *str) |
0ebb9a87 DB |
1089 | { |
1090 | frv_insn insn; | |
1091 | char *errmsg; | |
1092 | int packing_constraint; | |
1093 | finished_insnS finished_insn; | |
1094 | fragS *double_nop_frag = NULL; | |
1095 | fragS *single_nop_frag = NULL; | |
1096 | struct vliw_insn_list *vliw_insn_list_entry = NULL; | |
1097 | ||
1098 | /* Initialize GAS's cgen interface for a new instruction. */ | |
1099 | gas_cgen_init_parse (); | |
1100 | ||
99d09cdb AO |
1101 | memset (&insn, 0, sizeof (insn)); |
1102 | ||
0ebb9a87 DB |
1103 | insn.insn = frv_cgen_assemble_insn |
1104 | (gas_cgen_cpu_desc, str, & insn.fields, insn.buffer, &errmsg); | |
1105 | ||
1106 | if (!insn.insn) | |
1107 | { | |
20203fb9 | 1108 | as_bad ("%s", errmsg); |
0ebb9a87 DB |
1109 | return; |
1110 | } | |
1111 | ||
1112 | /* If the cpu is tomcat, then we need to insert nops to workaround | |
1113 | hardware limitations. We need to keep track of each vliw unit | |
1114 | and examine the length of the unit and the individual insns | |
1115 | within the unit to determine the number and location of the | |
1116 | required nops. */ | |
1117 | if (frv_mach == bfd_mach_frvtomcat) | |
1118 | { | |
1119 | /* If we've just finished a VLIW insn OR this is a branch, | |
1120 | then start up a new frag. Fill it with nops. We will get rid | |
1121 | of those that are not required after we've seen all of the | |
1122 | instructions but before we start resolving fixups. */ | |
1123 | if ( !FRV_IS_NOP (insn) | |
1124 | && (frv_is_branch_insn (insn.insn) || insn.fields.f_pack)) | |
1125 | { | |
1126 | char *buffer; | |
1127 | ||
1128 | frag_wane (frag_now); | |
1129 | frag_new (0); | |
1130 | double_nop_frag = frag_now; | |
1131 | buffer = frag_var (rs_machine_dependent, 8, 8, NOP_DELETE, NULL, 0, 0); | |
1132 | md_number_to_chars (buffer, FRV_NOP_PACK, 4); | |
1133 | md_number_to_chars (buffer+4, FRV_NOP_NOPACK, 4); | |
1134 | ||
1135 | frag_wane (frag_now); | |
1136 | frag_new (0); | |
1137 | single_nop_frag = frag_now; | |
1138 | buffer = frag_var (rs_machine_dependent, 4, 4, NOP_DELETE, NULL, 0, 0); | |
1139 | md_number_to_chars (buffer, FRV_NOP_NOPACK, 4); | |
1140 | } | |
1141 | ||
1142 | vliw_insn_list_entry = frv_insert_vliw_insn (DO_COUNT); | |
1143 | vliw_insn_list_entry->insn = insn.insn; | |
1144 | if (frv_is_branch_insn (insn.insn)) | |
1145 | vliw_insn_list_entry->type = VLIW_BRANCH_TYPE; | |
1146 | ||
1147 | if ( !FRV_IS_NOP (insn) | |
1148 | && (frv_is_branch_insn (insn.insn) || insn.fields.f_pack)) | |
1149 | { | |
1150 | vliw_insn_list_entry->snop_frag = single_nop_frag; | |
1151 | vliw_insn_list_entry->dnop_frag = double_nop_frag; | |
1152 | } | |
1153 | } | |
1154 | ||
1155 | /* Make sure that this insn does not violate the VLIW packing constraints. */ | |
1156 | /* -mno-pack disallows any packing whatsoever. */ | |
1157 | if (frv_flags & EF_FRV_NOPACK) | |
1158 | { | |
1159 | if (! insn.fields.f_pack) | |
1160 | { | |
1161 | as_bad (_("VLIW packing used for -mno-pack")); | |
1162 | return; | |
1163 | } | |
1164 | } | |
1165 | /* -mcpu=FRV is an idealized FR-V implementation that supports all of the | |
1166 | instructions, don't do vliw checking. */ | |
1167 | else if (frv_mach != bfd_mach_frv) | |
1168 | { | |
676a64f4 RS |
1169 | if (!target_implements_insn_p (insn.insn)) |
1170 | { | |
1171 | as_bad (_("Instruction not supported by this architecture")); | |
1172 | return; | |
1173 | } | |
0ebb9a87 | 1174 | packing_constraint = frv_vliw_add_insn (& vliw, insn.insn); |
1ae31fee DB |
1175 | if (frv_mach == bfd_mach_fr550 && ! packing_constraint) |
1176 | packing_constraint = fr550_check_acc_range (& vliw, & insn); | |
0ebb9a87 DB |
1177 | if (insn.fields.f_pack) |
1178 | frv_vliw_reset (& vliw, frv_mach, frv_flags); | |
1179 | if (packing_constraint) | |
1180 | { | |
1181 | as_bad (_("VLIW packing constraint violation")); | |
1182 | return; | |
1183 | } | |
1184 | } | |
1185 | ||
1186 | /* Doesn't really matter what we pass for RELAX_P here. */ | |
1187 | gas_cgen_finish_insn (insn.insn, insn.buffer, | |
1188 | CGEN_FIELDS_BITSIZE (& insn.fields), 1, &finished_insn); | |
1189 | ||
1190 | ||
1191 | /* If the cpu is tomcat, then we need to insert nops to workaround | |
1192 | hardware limitations. We need to keep track of each vliw unit | |
1193 | and examine the length of the unit and the individual insns | |
1194 | within the unit to determine the number and location of the | |
1195 | required nops. */ | |
1196 | if (frv_mach == bfd_mach_frvtomcat) | |
1197 | { | |
1198 | if (vliw_insn_list_entry) | |
1199 | vliw_insn_list_entry->address = finished_insn.addr; | |
1200 | else | |
1201 | abort(); | |
1202 | ||
1203 | if (insn.fields.f_pack) | |
1204 | { | |
1205 | /* We've completed a VLIW insn. */ | |
1206 | previous_vliw_chain = current_vliw_chain; | |
1207 | current_vliw_chain = NULL; | |
1208 | current_vliw_insn = NULL; | |
1209 | } | |
1210 | } | |
1211 | } | |
1212 | ||
1213 | /* The syntax in the manual says constants begin with '#'. | |
1214 | We just ignore it. */ | |
1215 | ||
1216 | void | |
5a49b8ac | 1217 | md_operand (expressionS *expressionP) |
0ebb9a87 DB |
1218 | { |
1219 | if (* input_line_pointer == '#') | |
1220 | { | |
1221 | input_line_pointer ++; | |
1222 | expression (expressionP); | |
1223 | } | |
1224 | } | |
1225 | ||
1226 | valueT | |
5a49b8ac | 1227 | md_section_align (segT segment, valueT size) |
0ebb9a87 DB |
1228 | { |
1229 | int align = bfd_get_section_alignment (stdoutput, segment); | |
1230 | return ((size + (1 << align) - 1) & (-1 << align)); | |
1231 | } | |
1232 | ||
1233 | symbolS * | |
5a49b8ac | 1234 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
0ebb9a87 DB |
1235 | { |
1236 | return 0; | |
1237 | } | |
1238 | \f | |
1239 | /* Interface to relax_segment. */ | |
1240 | ||
1241 | /* FIXME: Build table by hand, get it working, then machine generate. */ | |
1242 | const relax_typeS md_relax_table[] = | |
1243 | { | |
1244 | {1, 1, 0, 0}, | |
1245 | {511 - 2 - 2, -512 - 2 + 2, 0, 2 }, | |
1246 | {0x2000000 - 1 - 2, -0x2000000 - 2, 2, 0 }, | |
1247 | {0x2000000 - 1 - 2, -0x2000000 - 2, 4, 0 } | |
1248 | }; | |
1249 | ||
1250 | long | |
5a49b8ac | 1251 | frv_relax_frag (fragS *fragP ATTRIBUTE_UNUSED, long stretch ATTRIBUTE_UNUSED) |
0ebb9a87 DB |
1252 | { |
1253 | return 0; | |
1254 | } | |
1255 | ||
1256 | /* Return an initial guess of the length by which a fragment must grow to | |
1257 | hold a branch to reach its destination. | |
1258 | Also updates fr_type/fr_subtype as necessary. | |
1259 | ||
1260 | Called just before doing relaxation. | |
1261 | Any symbol that is now undefined will not become defined. | |
1262 | The guess for fr_var is ACTUALLY the growth beyond fr_fix. | |
1263 | Whatever we do to grow fr_fix or fr_var contributes to our returned value. | |
1264 | Although it may not be explicit in the frag, pretend fr_var starts with a | |
1265 | 0 value. */ | |
1266 | ||
1267 | int | |
5a49b8ac | 1268 | md_estimate_size_before_relax (fragS *fragP, segT segment ATTRIBUTE_UNUSED) |
0ebb9a87 DB |
1269 | { |
1270 | switch (fragP->fr_subtype) | |
1271 | { | |
1272 | case NOP_KEEP: | |
1273 | return fragP->fr_var; | |
1274 | ||
1275 | default: | |
1276 | case NOP_DELETE: | |
1277 | return 0; | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | /* *fragP has been relaxed to its final size, and now needs to have | |
1282 | the bytes inside it modified to conform to the new size. | |
1283 | ||
1284 | Called after relaxation is finished. | |
1285 | fragP->fr_type == rs_machine_dependent. | |
1286 | fragP->fr_subtype is the subtype of what the address relaxed to. */ | |
1287 | ||
1288 | void | |
5a49b8ac AM |
1289 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, |
1290 | segT sec ATTRIBUTE_UNUSED, | |
1291 | fragS *fragP) | |
0ebb9a87 DB |
1292 | { |
1293 | switch (fragP->fr_subtype) | |
1294 | { | |
1295 | default: | |
1296 | case NOP_DELETE: | |
1297 | return; | |
1298 | ||
1299 | case NOP_KEEP: | |
1300 | fragP->fr_fix = fragP->fr_var; | |
1301 | fragP->fr_var = 0; | |
1302 | return; | |
1303 | } | |
1304 | } | |
1305 | \f | |
1306 | /* Functions concerning relocs. */ | |
1307 | ||
1308 | /* The location from which a PC relative jump should be calculated, | |
1309 | given a PC relative reloc. */ | |
1310 | ||
1311 | long | |
5a49b8ac | 1312 | md_pcrel_from_section (fixS *fixP, segT sec) |
0ebb9a87 | 1313 | { |
a939d090 AO |
1314 | if (TC_FORCE_RELOCATION (fixP) |
1315 | || (fixP->fx_addsy != (symbolS *) NULL | |
1316 | && S_GET_SEGMENT (fixP->fx_addsy) != sec)) | |
1317 | { | |
1318 | /* If we can't adjust this relocation, or if it references a | |
1319 | local symbol in a different section (which | |
1320 | TC_FORCE_RELOCATION can't check), let the linker figure it | |
1321 | out. */ | |
1322 | return 0; | |
1323 | } | |
0ebb9a87 DB |
1324 | |
1325 | return (fixP->fx_frag->fr_address + fixP->fx_where) & ~1; | |
1326 | } | |
1327 | ||
1328 | /* Return the bfd reloc type for OPERAND of INSN at fixup FIXP. | |
1329 | Returns BFD_RELOC_NONE if no reloc type can be found. | |
1330 | *FIXP may be modified if desired. */ | |
1331 | ||
1332 | bfd_reloc_code_real_type | |
5a49b8ac AM |
1333 | md_cgen_lookup_reloc (const CGEN_INSN *insn ATTRIBUTE_UNUSED, |
1334 | const CGEN_OPERAND *operand, | |
1335 | fixS *fixP) | |
0ebb9a87 DB |
1336 | { |
1337 | switch (operand->type) | |
1338 | { | |
1339 | case FRV_OPERAND_LABEL16: | |
b34976b6 | 1340 | fixP->fx_pcrel = TRUE; |
0ebb9a87 DB |
1341 | return BFD_RELOC_FRV_LABEL16; |
1342 | ||
1343 | case FRV_OPERAND_LABEL24: | |
b34976b6 | 1344 | fixP->fx_pcrel = TRUE; |
90219bd0 AO |
1345 | |
1346 | if (fixP->fx_cgen.opinfo != 0) | |
1347 | return fixP->fx_cgen.opinfo; | |
1348 | ||
0ebb9a87 DB |
1349 | return BFD_RELOC_FRV_LABEL24; |
1350 | ||
1351 | case FRV_OPERAND_UHI16: | |
1352 | case FRV_OPERAND_ULO16: | |
1353 | case FRV_OPERAND_SLO16: | |
90219bd0 AO |
1354 | case FRV_OPERAND_CALLANN: |
1355 | case FRV_OPERAND_LDANN: | |
1356 | case FRV_OPERAND_LDDANN: | |
0ebb9a87 DB |
1357 | /* The relocation type should be recorded in opinfo */ |
1358 | if (fixP->fx_cgen.opinfo != 0) | |
1359 | return fixP->fx_cgen.opinfo; | |
1360 | break; | |
1361 | ||
1362 | case FRV_OPERAND_D12: | |
1363 | case FRV_OPERAND_S12: | |
99d09cdb AO |
1364 | if (fixP->fx_cgen.opinfo != 0) |
1365 | return fixP->fx_cgen.opinfo; | |
1366 | ||
0ebb9a87 DB |
1367 | return BFD_RELOC_FRV_GPREL12; |
1368 | ||
1369 | case FRV_OPERAND_U12: | |
1370 | return BFD_RELOC_FRV_GPRELU12; | |
1371 | ||
1372 | default: | |
1373 | break; | |
1374 | } | |
1375 | return BFD_RELOC_NONE; | |
1376 | } | |
1377 | ||
1378 | ||
1379 | /* See whether we need to force a relocation into the output file. | |
1380 | This is used to force out switch and PC relative relocations when | |
1381 | relaxing. */ | |
1382 | ||
1383 | int | |
5a49b8ac | 1384 | frv_force_relocation (fixS *fix) |
0ebb9a87 | 1385 | { |
90219bd0 | 1386 | switch (fix->fx_r_type < BFD_RELOC_UNUSED |
f17c130b | 1387 | ? (int) fix->fx_r_type |
90219bd0 AO |
1388 | : fix->fx_cgen.opinfo) |
1389 | { | |
1390 | case BFD_RELOC_FRV_GPREL12: | |
1391 | case BFD_RELOC_FRV_GPRELU12: | |
1392 | case BFD_RELOC_FRV_GPREL32: | |
1393 | case BFD_RELOC_FRV_GPRELHI: | |
1394 | case BFD_RELOC_FRV_GPRELLO: | |
1395 | case BFD_RELOC_FRV_GOT12: | |
1396 | case BFD_RELOC_FRV_GOTHI: | |
1397 | case BFD_RELOC_FRV_GOTLO: | |
1398 | case BFD_RELOC_FRV_FUNCDESC_VALUE: | |
1399 | case BFD_RELOC_FRV_FUNCDESC_GOTOFF12: | |
1400 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI: | |
1401 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO: | |
1402 | case BFD_RELOC_FRV_GOTOFF12: | |
1403 | case BFD_RELOC_FRV_GOTOFFHI: | |
1404 | case BFD_RELOC_FRV_GOTOFFLO: | |
1405 | case BFD_RELOC_FRV_GETTLSOFF: | |
1406 | case BFD_RELOC_FRV_TLSDESC_VALUE: | |
1407 | case BFD_RELOC_FRV_GOTTLSDESC12: | |
1408 | case BFD_RELOC_FRV_GOTTLSDESCHI: | |
1409 | case BFD_RELOC_FRV_GOTTLSDESCLO: | |
1410 | case BFD_RELOC_FRV_TLSMOFF12: | |
1411 | case BFD_RELOC_FRV_TLSMOFFHI: | |
1412 | case BFD_RELOC_FRV_TLSMOFFLO: | |
1413 | case BFD_RELOC_FRV_GOTTLSOFF12: | |
1414 | case BFD_RELOC_FRV_GOTTLSOFFHI: | |
1415 | case BFD_RELOC_FRV_GOTTLSOFFLO: | |
1416 | case BFD_RELOC_FRV_TLSOFF: | |
1417 | case BFD_RELOC_FRV_TLSDESC_RELAX: | |
1418 | case BFD_RELOC_FRV_GETTLSOFF_RELAX: | |
1419 | case BFD_RELOC_FRV_TLSOFF_RELAX: | |
1420 | return 1; | |
1421 | ||
1422 | default: | |
1423 | break; | |
1424 | } | |
0ebb9a87 | 1425 | |
ae6063d4 | 1426 | return generic_force_reloc (fix); |
0ebb9a87 | 1427 | } |
99d09cdb AO |
1428 | |
1429 | /* Apply a fixup that could be resolved within the assembler. */ | |
1430 | ||
1431 | void | |
5a49b8ac | 1432 | md_apply_fix (fixS *fixP, valueT *valP, segT seg) |
99d09cdb AO |
1433 | { |
1434 | if (fixP->fx_addsy == 0) | |
1435 | switch (fixP->fx_cgen.opinfo) | |
1436 | { | |
1437 | case BFD_RELOC_FRV_HI16: | |
1438 | *valP >>= 16; | |
1439 | /* Fall through. */ | |
1440 | case BFD_RELOC_FRV_LO16: | |
1441 | *valP &= 0xffff; | |
1442 | break; | |
90219bd0 AO |
1443 | |
1444 | /* We need relocations for these, even if their symbols reduce | |
1445 | to constants. */ | |
1446 | case BFD_RELOC_FRV_GPREL12: | |
1447 | case BFD_RELOC_FRV_GPRELU12: | |
1448 | case BFD_RELOC_FRV_GPREL32: | |
1449 | case BFD_RELOC_FRV_GPRELHI: | |
1450 | case BFD_RELOC_FRV_GPRELLO: | |
1451 | case BFD_RELOC_FRV_GOT12: | |
1452 | case BFD_RELOC_FRV_GOTHI: | |
1453 | case BFD_RELOC_FRV_GOTLO: | |
1454 | case BFD_RELOC_FRV_FUNCDESC_VALUE: | |
1455 | case BFD_RELOC_FRV_FUNCDESC_GOTOFF12: | |
1456 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI: | |
1457 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO: | |
1458 | case BFD_RELOC_FRV_GOTOFF12: | |
1459 | case BFD_RELOC_FRV_GOTOFFHI: | |
1460 | case BFD_RELOC_FRV_GOTOFFLO: | |
1461 | case BFD_RELOC_FRV_GETTLSOFF: | |
1462 | case BFD_RELOC_FRV_TLSDESC_VALUE: | |
1463 | case BFD_RELOC_FRV_GOTTLSDESC12: | |
1464 | case BFD_RELOC_FRV_GOTTLSDESCHI: | |
1465 | case BFD_RELOC_FRV_GOTTLSDESCLO: | |
1466 | case BFD_RELOC_FRV_TLSMOFF12: | |
1467 | case BFD_RELOC_FRV_TLSMOFFHI: | |
1468 | case BFD_RELOC_FRV_TLSMOFFLO: | |
1469 | case BFD_RELOC_FRV_GOTTLSOFF12: | |
1470 | case BFD_RELOC_FRV_GOTTLSOFFHI: | |
1471 | case BFD_RELOC_FRV_GOTTLSOFFLO: | |
1472 | case BFD_RELOC_FRV_TLSOFF: | |
1473 | case BFD_RELOC_FRV_TLSDESC_RELAX: | |
1474 | case BFD_RELOC_FRV_GETTLSOFF_RELAX: | |
1475 | case BFD_RELOC_FRV_TLSOFF_RELAX: | |
455bde50 | 1476 | fixP->fx_addsy = abs_section_sym; |
90219bd0 AO |
1477 | break; |
1478 | } | |
1479 | else | |
1480 | switch (fixP->fx_cgen.opinfo) | |
1481 | { | |
1482 | case BFD_RELOC_FRV_GETTLSOFF: | |
1483 | case BFD_RELOC_FRV_TLSDESC_VALUE: | |
1484 | case BFD_RELOC_FRV_GOTTLSDESC12: | |
1485 | case BFD_RELOC_FRV_GOTTLSDESCHI: | |
1486 | case BFD_RELOC_FRV_GOTTLSDESCLO: | |
1487 | case BFD_RELOC_FRV_TLSMOFF12: | |
1488 | case BFD_RELOC_FRV_TLSMOFFHI: | |
1489 | case BFD_RELOC_FRV_TLSMOFFLO: | |
1490 | case BFD_RELOC_FRV_GOTTLSOFF12: | |
1491 | case BFD_RELOC_FRV_GOTTLSOFFHI: | |
1492 | case BFD_RELOC_FRV_GOTTLSOFFLO: | |
1493 | case BFD_RELOC_FRV_TLSOFF: | |
1494 | case BFD_RELOC_FRV_TLSDESC_RELAX: | |
1495 | case BFD_RELOC_FRV_GETTLSOFF_RELAX: | |
1496 | case BFD_RELOC_FRV_TLSOFF_RELAX: | |
1497 | /* Mark TLS symbols as such. */ | |
1498 | if (S_GET_SEGMENT (fixP->fx_addsy) != absolute_section) | |
1499 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
1500 | break; | |
99d09cdb AO |
1501 | } |
1502 | ||
55cf6793 | 1503 | gas_cgen_md_apply_fix (fixP, valP, seg); |
99d09cdb AO |
1504 | return; |
1505 | } | |
1506 | ||
0ebb9a87 DB |
1507 | \f |
1508 | /* Write a value out to the object file, using the appropriate endianness. */ | |
1509 | ||
1510 | void | |
5a49b8ac | 1511 | frv_md_number_to_chars (char *buf, valueT val, int n) |
0ebb9a87 DB |
1512 | { |
1513 | number_to_chars_bigendian (buf, val, n); | |
1514 | } | |
1515 | ||
0ebb9a87 | 1516 | char * |
5a49b8ac | 1517 | md_atof (int type, char *litP, int *sizeP) |
0ebb9a87 | 1518 | { |
499ac353 | 1519 | return ieee_md_atof (type, litP, sizeP, TRUE); |
0ebb9a87 DB |
1520 | } |
1521 | ||
b34976b6 | 1522 | bfd_boolean |
5a49b8ac | 1523 | frv_fix_adjustable (fixS *fixP) |
0ebb9a87 DB |
1524 | { |
1525 | bfd_reloc_code_real_type reloc_type; | |
1526 | ||
1527 | if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED) | |
1528 | { | |
1529 | const CGEN_INSN *insn = NULL; | |
1530 | int opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED; | |
1531 | const CGEN_OPERAND *operand = cgen_operand_lookup_by_num(gas_cgen_cpu_desc, opindex); | |
1532 | reloc_type = md_cgen_lookup_reloc (insn, operand, fixP); | |
1533 | } | |
1534 | else | |
1535 | reloc_type = fixP->fx_r_type; | |
1536 | ||
0ebb9a87 DB |
1537 | /* We need the symbol name for the VTABLE entries */ |
1538 | if ( reloc_type == BFD_RELOC_VTABLE_INHERIT | |
1539 | || reloc_type == BFD_RELOC_VTABLE_ENTRY | |
1540 | || reloc_type == BFD_RELOC_FRV_GPREL12 | |
1541 | || reloc_type == BFD_RELOC_FRV_GPRELU12) | |
1542 | return 0; | |
1543 | ||
1544 | return 1; | |
1545 | } | |
1546 | ||
1547 | /* Allow user to set flags bits. */ | |
1548 | void | |
5a49b8ac | 1549 | frv_set_flags (int arg ATTRIBUTE_UNUSED) |
0ebb9a87 DB |
1550 | { |
1551 | flagword new_flags = get_absolute_expression (); | |
1552 | flagword new_mask = ~ (flagword)0; | |
1553 | ||
1554 | frv_user_set_flags_p = 1; | |
1555 | if (*input_line_pointer == ',') | |
1556 | { | |
1557 | ++input_line_pointer; | |
1558 | new_mask = get_absolute_expression (); | |
1559 | } | |
1560 | ||
1561 | frv_flags = (frv_flags & ~new_mask) | (new_flags & new_mask); | |
1562 | bfd_set_private_flags (stdoutput, frv_flags); | |
1563 | } | |
1564 | ||
1565 | /* Frv specific function to handle 4 byte initializations for pointers that are | |
1566 | considered 'safe' for use with pic support. Until frv_frob_file{,_section} | |
1567 | is run, we encode it a BFD_RELOC_CTOR, and it is turned back into a normal | |
1568 | BFD_RELOC_32 at that time. */ | |
1569 | ||
1570 | void | |
5a49b8ac | 1571 | frv_pic_ptr (int nbytes) |
0ebb9a87 DB |
1572 | { |
1573 | expressionS exp; | |
1574 | char *p; | |
1575 | ||
1576 | if (nbytes != 4) | |
1577 | abort (); | |
1578 | ||
1579 | #ifdef md_flush_pending_output | |
1580 | md_flush_pending_output (); | |
1581 | #endif | |
1582 | ||
1583 | if (is_it_end_of_statement ()) | |
1584 | { | |
1585 | demand_empty_rest_of_line (); | |
1586 | return; | |
1587 | } | |
1588 | ||
1589 | #ifdef md_cons_align | |
1590 | md_cons_align (nbytes); | |
1591 | #endif | |
1592 | ||
1593 | do | |
1594 | { | |
99d09cdb AO |
1595 | bfd_reloc_code_real_type reloc_type = BFD_RELOC_CTOR; |
1596 | ||
1597 | if (strncasecmp (input_line_pointer, "funcdesc(", 9) == 0) | |
1598 | { | |
1599 | input_line_pointer += 9; | |
1600 | expression (&exp); | |
1601 | if (*input_line_pointer == ')') | |
1602 | input_line_pointer++; | |
1603 | else | |
bd3ba5d1 | 1604 | as_bad (_("missing ')'")); |
99d09cdb AO |
1605 | reloc_type = BFD_RELOC_FRV_FUNCDESC; |
1606 | } | |
90219bd0 AO |
1607 | else if (strncasecmp (input_line_pointer, "tlsmoff(", 8) == 0) |
1608 | { | |
1609 | input_line_pointer += 8; | |
1610 | expression (&exp); | |
1611 | if (*input_line_pointer == ')') | |
1612 | input_line_pointer++; | |
1613 | else | |
bd3ba5d1 | 1614 | as_bad (_("missing ')'")); |
90219bd0 AO |
1615 | reloc_type = BFD_RELOC_FRV_TLSMOFF; |
1616 | } | |
99d09cdb AO |
1617 | else |
1618 | expression (&exp); | |
0ebb9a87 DB |
1619 | |
1620 | p = frag_more (4); | |
1621 | memset (p, 0, 4); | |
1622 | fix_new_exp (frag_now, p - frag_now->fr_literal, 4, &exp, 0, | |
99d09cdb | 1623 | reloc_type); |
0ebb9a87 DB |
1624 | } |
1625 | while (*input_line_pointer++ == ','); | |
1626 | ||
1627 | input_line_pointer--; /* Put terminator back into stream. */ | |
1628 | demand_empty_rest_of_line (); | |
1629 | } | |
1630 | ||
1631 | \f | |
1632 | ||
1633 | #ifdef DEBUG | |
1634 | #define DPRINTF1(A) fprintf (stderr, A) | |
1635 | #define DPRINTF2(A,B) fprintf (stderr, A, B) | |
1636 | #define DPRINTF3(A,B,C) fprintf (stderr, A, B, C) | |
1637 | ||
1638 | #else | |
1639 | #define DPRINTF1(A) | |
1640 | #define DPRINTF2(A,B) | |
1641 | #define DPRINTF3(A,B,C) | |
1642 | #endif | |
1643 | ||
1644 | /* Go through a the sections looking for relocations that are problematical for | |
1645 | pic. If not pic, just note that this object can't be linked with pic. If | |
1646 | it is pic, see if it needs to be marked so that it will be fixed up, or if | |
1647 | not possible, issue an error. */ | |
1648 | ||
1649 | static void | |
5a49b8ac | 1650 | frv_frob_file_section (bfd *abfd, asection *sec, void *ptr ATTRIBUTE_UNUSED) |
0ebb9a87 DB |
1651 | { |
1652 | segment_info_type *seginfo = seg_info (sec); | |
1653 | fixS *fixp; | |
1654 | CGEN_CPU_DESC cd = gas_cgen_cpu_desc; | |
1655 | flagword flags = bfd_get_section_flags (abfd, sec); | |
1656 | ||
1657 | /* Skip relocations in known sections (.ctors, .dtors, and .gcc_except_table) | |
1658 | since we can fix those up by hand. */ | |
1659 | int known_section_p = (sec->name | |
1660 | && sec->name[0] == '.' | |
1661 | && ((sec->name[1] == 'c' | |
1662 | && strcmp (sec->name, ".ctor") == 0) | |
1663 | || (sec->name[1] == 'd' | |
1664 | && strcmp (sec->name, ".dtor") == 0) | |
1665 | || (sec->name[1] == 'g' | |
1666 | && strcmp (sec->name, ".gcc_except_table") == 0))); | |
1667 | ||
1668 | DPRINTF3 ("\nFrv section %s%s\n", sec->name, (known_section_p) ? ", known section" : ""); | |
1669 | if ((flags & SEC_ALLOC) == 0) | |
1670 | { | |
1671 | DPRINTF1 ("\tSkipping non-loaded section\n"); | |
1672 | return; | |
1673 | } | |
1674 | ||
1675 | for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next) | |
1676 | { | |
1677 | symbolS *s = fixp->fx_addsy; | |
1678 | bfd_reloc_code_real_type reloc; | |
1679 | int non_pic_p; | |
1680 | int opindex; | |
1681 | const CGEN_OPERAND *operand; | |
1682 | const CGEN_INSN *insn = fixp->fx_cgen.insn; | |
1683 | ||
1684 | if (fixp->fx_done) | |
1685 | { | |
1686 | DPRINTF1 ("\tSkipping reloc that has already been done\n"); | |
1687 | continue; | |
1688 | } | |
1689 | ||
1690 | if (fixp->fx_pcrel) | |
1691 | { | |
1692 | DPRINTF1 ("\tSkipping reloc that is PC relative\n"); | |
1693 | continue; | |
1694 | } | |
1695 | ||
1696 | if (! s) | |
1697 | { | |
1698 | DPRINTF1 ("\tSkipping reloc without symbol\n"); | |
1699 | continue; | |
1700 | } | |
1701 | ||
1702 | if (fixp->fx_r_type < BFD_RELOC_UNUSED) | |
1703 | { | |
1704 | opindex = -1; | |
1705 | reloc = fixp->fx_r_type; | |
1706 | } | |
1707 | else | |
1708 | { | |
1709 | opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED; | |
1710 | operand = cgen_operand_lookup_by_num (cd, opindex); | |
1711 | reloc = md_cgen_lookup_reloc (insn, operand, fixp); | |
1712 | } | |
1713 | ||
1714 | DPRINTF3 ("\treloc %s\t%s", bfd_get_reloc_code_name (reloc), S_GET_NAME (s)); | |
1715 | ||
1716 | non_pic_p = 0; | |
1717 | switch (reloc) | |
1718 | { | |
1719 | default: | |
1720 | break; | |
1721 | ||
1722 | case BFD_RELOC_32: | |
1723 | /* Skip relocations in known sections (.ctors, .dtors, and | |
1724 | .gcc_except_table) since we can fix those up by hand. Also | |
1725 | skip forward references to constants. Also skip a difference | |
1726 | of two symbols, which still uses the BFD_RELOC_32 at this | |
1727 | point. */ | |
1728 | if (! known_section_p | |
1729 | && S_GET_SEGMENT (s) != absolute_section | |
1730 | && !fixp->fx_subsy | |
1731 | && (flags & (SEC_READONLY | SEC_CODE)) == 0) | |
1732 | { | |
1733 | non_pic_p = 1; | |
1734 | } | |
1735 | break; | |
1736 | ||
1737 | /* FIXME -- should determine if any of the GP relocation really uses | |
1738 | gr16 (which is not pic safe) or not. Right now, assume if we | |
1739 | aren't being compiled with -mpic, the usage is non pic safe, but | |
1740 | is safe with -mpic. */ | |
1741 | case BFD_RELOC_FRV_GPREL12: | |
1742 | case BFD_RELOC_FRV_GPRELU12: | |
1743 | case BFD_RELOC_FRV_GPREL32: | |
1744 | case BFD_RELOC_FRV_GPRELHI: | |
1745 | case BFD_RELOC_FRV_GPRELLO: | |
1746 | non_pic_p = ! frv_pic_p; | |
1747 | break; | |
1748 | ||
1749 | case BFD_RELOC_FRV_LO16: | |
1750 | case BFD_RELOC_FRV_HI16: | |
1751 | if (S_GET_SEGMENT (s) != absolute_section) | |
1752 | non_pic_p = 1; | |
1753 | break; | |
1754 | ||
1755 | case BFD_RELOC_VTABLE_INHERIT: | |
1756 | case BFD_RELOC_VTABLE_ENTRY: | |
1757 | non_pic_p = 1; | |
1758 | break; | |
1759 | ||
1760 | /* If this is a blessed BFD_RELOC_32, convert it back to the normal | |
1761 | relocation. */ | |
1762 | case BFD_RELOC_CTOR: | |
1763 | fixp->fx_r_type = BFD_RELOC_32; | |
1764 | break; | |
1765 | } | |
1766 | ||
1767 | if (non_pic_p) | |
1768 | { | |
1769 | DPRINTF1 (" (Non-pic relocation)\n"); | |
1770 | if (frv_pic_p) | |
1771 | as_warn_where (fixp->fx_file, fixp->fx_line, | |
1772 | _("Relocation %s is not safe for %s"), | |
1773 | bfd_get_reloc_code_name (reloc), frv_pic_flag); | |
1774 | ||
1775 | else if ((frv_flags & EF_FRV_NON_PIC_RELOCS) == 0) | |
1776 | { | |
1777 | frv_flags |= EF_FRV_NON_PIC_RELOCS; | |
1778 | bfd_set_private_flags (abfd, frv_flags); | |
1779 | } | |
1780 | } | |
1781 | #ifdef DEBUG | |
1782 | else | |
1783 | DPRINTF1 ("\n"); | |
1784 | #endif | |
1785 | } | |
1786 | } | |
1787 | ||
1788 | /* After all of the symbols have been adjusted, go over the file looking | |
1789 | for any relocations that pic won't support. */ | |
1790 | ||
1791 | void | |
5a49b8ac | 1792 | frv_frob_file (void) |
0ebb9a87 | 1793 | { |
5a49b8ac | 1794 | bfd_map_over_sections (stdoutput, frv_frob_file_section, (void *) 0); |
0ebb9a87 DB |
1795 | } |
1796 | ||
1797 | void | |
5a49b8ac | 1798 | frv_frob_label (symbolS *this_label) |
0ebb9a87 DB |
1799 | { |
1800 | struct vliw_insn_list *vliw_insn_list_entry; | |
1801 | ||
f2e25d93 | 1802 | dwarf2_emit_label (this_label); |
0ebb9a87 DB |
1803 | if (frv_mach != bfd_mach_frvtomcat) |
1804 | return; | |
1805 | ||
1806 | if (now_seg != text_section) | |
1807 | return; | |
1808 | ||
1809 | vliw_insn_list_entry = frv_insert_vliw_insn(DONT_COUNT); | |
1810 | vliw_insn_list_entry->type = VLIW_LABEL_TYPE; | |
1811 | vliw_insn_list_entry->sym = this_label; | |
1812 | } | |
1813 | ||
1814 | fixS * | |
5a49b8ac AM |
1815 | frv_cgen_record_fixup_exp (fragS *frag, |
1816 | int where, | |
1817 | const CGEN_INSN *insn, | |
1818 | int length, | |
1819 | const CGEN_OPERAND *operand, | |
1820 | int opinfo, | |
1821 | expressionS *exp) | |
0ebb9a87 DB |
1822 | { |
1823 | fixS * fixP = gas_cgen_record_fixup_exp (frag, where, insn, length, | |
1824 | operand, opinfo, exp); | |
1825 | ||
1826 | if (frv_mach == bfd_mach_frvtomcat | |
1827 | && current_vliw_insn | |
1828 | && current_vliw_insn->type == VLIW_BRANCH_TYPE | |
1829 | && exp != NULL) | |
1830 | current_vliw_insn->sym = exp->X_add_symbol; | |
1831 | ||
1832 | return fixP; | |
1833 | } |