Commit | Line | Data |
---|---|---|
0ebb9a87 | 1 | /* tc-frv.c -- Assembler for the Fujitsu FRV. |
20203fb9 | 2 | Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
2c80b753 | 3 | Free Software Foundation, Inc. |
0ebb9a87 DB |
4 | |
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 9 | the Free Software Foundation; either version 3, or (at your option) |
0ebb9a87 DB |
10 | any later version. |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to | |
4b4da160 NC |
19 | the Free Software Foundation, 51 Franklin Street - Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
0ebb9a87 | 21 | |
0ebb9a87 | 22 | #include "as.h" |
0ebb9a87 DB |
23 | #include "subsegs.h" |
24 | #include "symcat.h" | |
25 | #include "opcodes/frv-desc.h" | |
26 | #include "opcodes/frv-opc.h" | |
27 | #include "cgen.h" | |
28 | #include "libbfd.h" | |
29 | #include "elf/common.h" | |
30 | #include "elf/frv.h" | |
f2e25d93 | 31 | #include "dwarf2dbg.h" |
0ebb9a87 DB |
32 | |
33 | /* Structure to hold all of the different components describing | |
34 | an individual instruction. */ | |
35 | typedef struct | |
36 | { | |
37 | const CGEN_INSN * insn; | |
38 | const CGEN_INSN * orig_insn; | |
39 | CGEN_FIELDS fields; | |
40 | #if CGEN_INT_INSN_P | |
41 | CGEN_INSN_INT buffer [1]; | |
42 | #define INSN_VALUE(buf) (*(buf)) | |
43 | #else | |
44 | unsigned char buffer [CGEN_MAX_INSN_SIZE]; | |
45 | #define INSN_VALUE(buf) (buf) | |
46 | #endif | |
47 | char * addr; | |
48 | fragS * frag; | |
49 | int num_fixups; | |
50 | fixS * fixups [GAS_CGEN_MAX_FIXUPS]; | |
51 | int indices [MAX_OPERAND_INSTANCES]; | |
52 | } | |
53 | frv_insn; | |
54 | ||
55 | enum vliw_insn_type | |
56 | { | |
57 | VLIW_GENERIC_TYPE, /* Don't care about this insn. */ | |
58 | VLIW_BRANCH_TYPE, /* A Branch. */ | |
59 | VLIW_LABEL_TYPE, /* A Label. */ | |
60 | VLIW_NOP_TYPE, /* A NOP. */ | |
61 | VLIW_BRANCH_HAS_NOPS /* A Branch that requires NOPS. */ | |
62 | }; | |
63 | ||
64 | /* We're going to use these in the fr_subtype field to mark | |
65 | whether to keep inserted nops. */ | |
66 | ||
67 | #define NOP_KEEP 1 /* Keep these NOPS. */ | |
68 | #define NOP_DELETE 2 /* Delete these NOPS. */ | |
69 | ||
b34976b6 AM |
70 | #define DO_COUNT TRUE |
71 | #define DONT_COUNT FALSE | |
0ebb9a87 DB |
72 | |
73 | /* A list of insns within a VLIW insn. */ | |
74 | struct vliw_insn_list | |
75 | { | |
76 | /* The type of this insn. */ | |
77 | enum vliw_insn_type type; | |
78 | ||
79 | /* The corresponding gas insn information. */ | |
80 | const CGEN_INSN *insn; | |
81 | ||
82 | /* For branches and labels, the symbol that is referenced. */ | |
83 | symbolS *sym; | |
84 | ||
85 | /* For branches, the frag containing the single nop that was generated. */ | |
86 | fragS *snop_frag; | |
87 | ||
88 | /* For branches, the frag containing the double nop that was generated. */ | |
89 | fragS *dnop_frag; | |
90 | ||
91 | /* Pointer to raw data for this insn. */ | |
92 | char *address; | |
93 | ||
94 | /* Next insn in list. */ | |
95 | struct vliw_insn_list *next; | |
96 | }; | |
97 | ||
98 | static struct vliw_insn_list single_nop_insn = { | |
99 | VLIW_NOP_TYPE, NULL, NULL, NULL, NULL, NULL, NULL }; | |
100 | ||
101 | static struct vliw_insn_list double_nop_insn = { | |
102 | VLIW_NOP_TYPE, NULL, NULL, NULL, NULL, NULL, NULL }; | |
103 | ||
104 | struct vliw_chain | |
105 | { | |
106 | int num; | |
107 | int insn_count; | |
108 | struct vliw_insn_list *insn_list; | |
109 | struct vliw_chain *next; | |
110 | }; | |
111 | ||
112 | static struct vliw_chain *vliw_chain_top; | |
113 | static struct vliw_chain *current_vliw_chain; | |
114 | static struct vliw_chain *previous_vliw_chain; | |
115 | static struct vliw_insn_list *current_vliw_insn; | |
116 | ||
117 | const char comment_chars[] = ";"; | |
118 | const char line_comment_chars[] = "#"; | |
99d09cdb | 119 | const char line_separator_chars[] = "!"; |
0ebb9a87 DB |
120 | const char EXP_CHARS[] = "eE"; |
121 | const char FLT_CHARS[] = "dD"; | |
122 | ||
123 | static FRV_VLIW vliw; | |
124 | ||
125 | /* Default machine */ | |
126 | ||
127 | #ifdef DEFAULT_CPU_FRV | |
128 | #define DEFAULT_MACHINE bfd_mach_frv | |
129 | #define DEFAULT_FLAGS EF_FRV_CPU_GENERIC | |
130 | ||
131 | #else | |
132 | #ifdef DEFAULT_CPU_FR300 | |
133 | #define DEFAULT_MACHINE bfd_mach_fr300 | |
134 | #define DEFAULT_FLAGS EF_FRV_CPU_FR300 | |
135 | ||
136 | #else | |
137 | #ifdef DEFAULT_CPU_SIMPLE | |
138 | #define DEFAULT_MACHINE bfd_mach_frvsimple | |
139 | #define DEFAULT_FLAGS EF_FRV_CPU_SIMPLE | |
140 | ||
141 | #else | |
142 | #ifdef DEFAULT_CPU_TOMCAT | |
143 | #define DEFAULT_MACHINE bfd_mach_frvtomcat | |
144 | #define DEFAULT_FLAGS EF_FRV_CPU_TOMCAT | |
145 | ||
146 | #else | |
147 | #ifdef DEFAULT_CPU_FR400 | |
148 | #define DEFAULT_MACHINE bfd_mach_fr400 | |
149 | #define DEFAULT_FLAGS EF_FRV_CPU_FR400 | |
150 | ||
1ae31fee DB |
151 | #else |
152 | #ifdef DEFAULT_CPU_FR550 | |
153 | #define DEFAULT_MACHINE bfd_mach_fr550 | |
154 | #define DEFAULT_FLAGS EF_FRV_CPU_FR550 | |
155 | ||
0ebb9a87 DB |
156 | #else |
157 | #define DEFAULT_MACHINE bfd_mach_fr500 | |
158 | #define DEFAULT_FLAGS EF_FRV_CPU_FR500 | |
159 | #endif | |
160 | #endif | |
161 | #endif | |
162 | #endif | |
163 | #endif | |
1ae31fee | 164 | #endif |
0ebb9a87 | 165 | |
996991aa AO |
166 | #ifdef TE_LINUX |
167 | # define DEFAULT_FDPIC EF_FRV_FDPIC | |
168 | #else | |
169 | # define DEFAULT_FDPIC 0 | |
170 | #endif | |
171 | ||
0ebb9a87 | 172 | static unsigned long frv_mach = bfd_mach_frv; |
676a64f4 | 173 | static bfd_boolean fr400_audio; |
0ebb9a87 DB |
174 | |
175 | /* Flags to set in the elf header */ | |
996991aa | 176 | static flagword frv_flags = DEFAULT_FLAGS | DEFAULT_FDPIC; |
0ebb9a87 DB |
177 | |
178 | static int frv_user_set_flags_p = 0; | |
179 | static int frv_pic_p = 0; | |
996991aa | 180 | static const char *frv_pic_flag = DEFAULT_FDPIC ? "-mfdpic" : (const char *)0; |
0ebb9a87 DB |
181 | |
182 | /* Print tomcat-specific debugging info. */ | |
183 | static int tomcat_debug = 0; | |
184 | ||
185 | /* Tomcat-specific NOP statistics. */ | |
186 | static int tomcat_stats = 0; | |
187 | static int tomcat_doubles = 0; | |
188 | static int tomcat_singles = 0; | |
189 | ||
190 | /* Forward reference to static functions */ | |
5a49b8ac AM |
191 | static void frv_set_flags (int); |
192 | static void frv_pic_ptr (int); | |
0ebb9a87 DB |
193 | |
194 | /* The target specific pseudo-ops which we support. */ | |
195 | const pseudo_typeS md_pseudo_table[] = | |
196 | { | |
197 | { "eflags", frv_set_flags, 0 }, | |
198 | { "word", cons, 4 }, | |
199 | { "picptr", frv_pic_ptr, 4 }, | |
0ebb9a87 DB |
200 | { NULL, NULL, 0 } |
201 | }; | |
202 | ||
203 | \f | |
204 | #define FRV_SHORTOPTS "G:" | |
205 | const char * md_shortopts = FRV_SHORTOPTS; | |
206 | ||
207 | #define OPTION_GPR_32 (OPTION_MD_BASE) | |
208 | #define OPTION_GPR_64 (OPTION_MD_BASE + 1) | |
209 | #define OPTION_FPR_32 (OPTION_MD_BASE + 2) | |
210 | #define OPTION_FPR_64 (OPTION_MD_BASE + 3) | |
211 | #define OPTION_SOFT_FLOAT (OPTION_MD_BASE + 4) | |
212 | #define OPTION_DWORD_YES (OPTION_MD_BASE + 5) | |
213 | #define OPTION_DWORD_NO (OPTION_MD_BASE + 6) | |
214 | #define OPTION_DOUBLE (OPTION_MD_BASE + 7) | |
215 | #define OPTION_NO_DOUBLE (OPTION_MD_BASE + 8) | |
216 | #define OPTION_MEDIA (OPTION_MD_BASE + 9) | |
217 | #define OPTION_NO_MEDIA (OPTION_MD_BASE + 10) | |
218 | #define OPTION_CPU (OPTION_MD_BASE + 11) | |
219 | #define OPTION_PIC (OPTION_MD_BASE + 12) | |
220 | #define OPTION_BIGPIC (OPTION_MD_BASE + 13) | |
221 | #define OPTION_LIBPIC (OPTION_MD_BASE + 14) | |
222 | #define OPTION_MULADD (OPTION_MD_BASE + 15) | |
223 | #define OPTION_NO_MULADD (OPTION_MD_BASE + 16) | |
224 | #define OPTION_TOMCAT_DEBUG (OPTION_MD_BASE + 17) | |
225 | #define OPTION_TOMCAT_STATS (OPTION_MD_BASE + 18) | |
226 | #define OPTION_PACK (OPTION_MD_BASE + 19) | |
227 | #define OPTION_NO_PACK (OPTION_MD_BASE + 20) | |
99d09cdb | 228 | #define OPTION_FDPIC (OPTION_MD_BASE + 21) |
996991aa | 229 | #define OPTION_NOPIC (OPTION_MD_BASE + 22) |
0ebb9a87 DB |
230 | |
231 | struct option md_longopts[] = | |
232 | { | |
233 | { "mgpr-32", no_argument, NULL, OPTION_GPR_32 }, | |
234 | { "mgpr-64", no_argument, NULL, OPTION_GPR_64 }, | |
235 | { "mfpr-32", no_argument, NULL, OPTION_FPR_32 }, | |
236 | { "mfpr-64", no_argument, NULL, OPTION_FPR_64 }, | |
237 | { "mhard-float", no_argument, NULL, OPTION_FPR_64 }, | |
238 | { "msoft-float", no_argument, NULL, OPTION_SOFT_FLOAT }, | |
239 | { "mdword", no_argument, NULL, OPTION_DWORD_YES }, | |
240 | { "mno-dword", no_argument, NULL, OPTION_DWORD_NO }, | |
241 | { "mdouble", no_argument, NULL, OPTION_DOUBLE }, | |
242 | { "mno-double", no_argument, NULL, OPTION_NO_DOUBLE }, | |
243 | { "mmedia", no_argument, NULL, OPTION_MEDIA }, | |
244 | { "mno-media", no_argument, NULL, OPTION_NO_MEDIA }, | |
245 | { "mcpu", required_argument, NULL, OPTION_CPU }, | |
246 | { "mpic", no_argument, NULL, OPTION_PIC }, | |
247 | { "mPIC", no_argument, NULL, OPTION_BIGPIC }, | |
248 | { "mlibrary-pic", no_argument, NULL, OPTION_LIBPIC }, | |
249 | { "mmuladd", no_argument, NULL, OPTION_MULADD }, | |
250 | { "mno-muladd", no_argument, NULL, OPTION_NO_MULADD }, | |
251 | { "mtomcat-debug", no_argument, NULL, OPTION_TOMCAT_DEBUG }, | |
252 | { "mtomcat-stats", no_argument, NULL, OPTION_TOMCAT_STATS }, | |
253 | { "mpack", no_argument, NULL, OPTION_PACK }, | |
254 | { "mno-pack", no_argument, NULL, OPTION_NO_PACK }, | |
99d09cdb | 255 | { "mfdpic", no_argument, NULL, OPTION_FDPIC }, |
996991aa | 256 | { "mnopic", no_argument, NULL, OPTION_NOPIC }, |
0ebb9a87 DB |
257 | { NULL, no_argument, NULL, 0 }, |
258 | }; | |
259 | ||
260 | size_t md_longopts_size = sizeof (md_longopts); | |
261 | ||
262 | /* What value to give to bfd_set_gp_size. */ | |
263 | static int g_switch_value = 8; | |
264 | ||
265 | int | |
5a49b8ac | 266 | md_parse_option (int c, char *arg) |
0ebb9a87 DB |
267 | { |
268 | switch (c) | |
269 | { | |
270 | default: | |
271 | return 0; | |
272 | ||
273 | case 'G': | |
274 | g_switch_value = atoi (arg); | |
275 | if (! g_switch_value) | |
276 | frv_flags |= EF_FRV_G0; | |
277 | break; | |
278 | ||
279 | case OPTION_GPR_32: | |
280 | frv_flags = (frv_flags & ~EF_FRV_GPR_MASK) | EF_FRV_GPR_32; | |
281 | break; | |
282 | ||
283 | case OPTION_GPR_64: | |
284 | frv_flags = (frv_flags & ~EF_FRV_GPR_MASK) | EF_FRV_GPR_64; | |
285 | break; | |
286 | ||
287 | case OPTION_FPR_32: | |
288 | frv_flags = (frv_flags & ~EF_FRV_FPR_MASK) | EF_FRV_FPR_32; | |
289 | break; | |
290 | ||
291 | case OPTION_FPR_64: | |
292 | frv_flags = (frv_flags & ~EF_FRV_FPR_MASK) | EF_FRV_FPR_64; | |
293 | break; | |
294 | ||
295 | case OPTION_SOFT_FLOAT: | |
296 | frv_flags = (frv_flags & ~EF_FRV_FPR_MASK) | EF_FRV_FPR_NONE; | |
297 | break; | |
298 | ||
299 | case OPTION_DWORD_YES: | |
300 | frv_flags = (frv_flags & ~EF_FRV_DWORD_MASK) | EF_FRV_DWORD_YES; | |
301 | break; | |
302 | ||
303 | case OPTION_DWORD_NO: | |
304 | frv_flags = (frv_flags & ~EF_FRV_DWORD_MASK) | EF_FRV_DWORD_NO; | |
305 | break; | |
306 | ||
307 | case OPTION_DOUBLE: | |
308 | frv_flags |= EF_FRV_DOUBLE; | |
309 | break; | |
310 | ||
311 | case OPTION_NO_DOUBLE: | |
312 | frv_flags &= ~EF_FRV_DOUBLE; | |
313 | break; | |
314 | ||
315 | case OPTION_MEDIA: | |
316 | frv_flags |= EF_FRV_MEDIA; | |
317 | break; | |
318 | ||
319 | case OPTION_NO_MEDIA: | |
320 | frv_flags &= ~EF_FRV_MEDIA; | |
321 | break; | |
322 | ||
323 | case OPTION_MULADD: | |
324 | frv_flags |= EF_FRV_MULADD; | |
325 | break; | |
326 | ||
327 | case OPTION_NO_MULADD: | |
328 | frv_flags &= ~EF_FRV_MULADD; | |
329 | break; | |
330 | ||
331 | case OPTION_PACK: | |
332 | frv_flags &= ~EF_FRV_NOPACK; | |
333 | break; | |
334 | ||
335 | case OPTION_NO_PACK: | |
336 | frv_flags |= EF_FRV_NOPACK; | |
337 | break; | |
338 | ||
339 | case OPTION_CPU: | |
340 | { | |
341 | char *p; | |
342 | int cpu_flags = EF_FRV_CPU_GENERIC; | |
343 | ||
344 | /* Identify the processor type */ | |
345 | p = arg; | |
346 | if (strcmp (p, "frv") == 0) | |
347 | { | |
348 | cpu_flags = EF_FRV_CPU_GENERIC; | |
349 | frv_mach = bfd_mach_frv; | |
350 | } | |
351 | ||
352 | else if (strcmp (p, "fr500") == 0) | |
353 | { | |
354 | cpu_flags = EF_FRV_CPU_FR500; | |
355 | frv_mach = bfd_mach_fr500; | |
356 | } | |
357 | ||
1ae31fee DB |
358 | else if (strcmp (p, "fr550") == 0) |
359 | { | |
360 | cpu_flags = EF_FRV_CPU_FR550; | |
361 | frv_mach = bfd_mach_fr550; | |
362 | } | |
363 | ||
676a64f4 RS |
364 | else if (strcmp (p, "fr450") == 0) |
365 | { | |
366 | cpu_flags = EF_FRV_CPU_FR450; | |
367 | frv_mach = bfd_mach_fr450; | |
368 | } | |
369 | ||
370 | else if (strcmp (p, "fr405") == 0) | |
371 | { | |
372 | cpu_flags = EF_FRV_CPU_FR405; | |
373 | frv_mach = bfd_mach_fr400; | |
374 | fr400_audio = TRUE; | |
375 | } | |
376 | ||
0ebb9a87 DB |
377 | else if (strcmp (p, "fr400") == 0) |
378 | { | |
379 | cpu_flags = EF_FRV_CPU_FR400; | |
380 | frv_mach = bfd_mach_fr400; | |
676a64f4 | 381 | fr400_audio = FALSE; |
0ebb9a87 DB |
382 | } |
383 | ||
384 | else if (strcmp (p, "fr300") == 0) | |
385 | { | |
386 | cpu_flags = EF_FRV_CPU_FR300; | |
387 | frv_mach = bfd_mach_fr300; | |
388 | } | |
389 | ||
390 | else if (strcmp (p, "simple") == 0) | |
391 | { | |
392 | cpu_flags = EF_FRV_CPU_SIMPLE; | |
393 | frv_mach = bfd_mach_frvsimple; | |
394 | frv_flags |= EF_FRV_NOPACK; | |
395 | } | |
396 | ||
397 | else if (strcmp (p, "tomcat") == 0) | |
398 | { | |
399 | cpu_flags = EF_FRV_CPU_TOMCAT; | |
400 | frv_mach = bfd_mach_frvtomcat; | |
401 | } | |
402 | ||
403 | else | |
404 | { | |
bd3ba5d1 | 405 | as_fatal (_("Unknown cpu -mcpu=%s"), arg); |
0ebb9a87 DB |
406 | return 0; |
407 | } | |
408 | ||
409 | frv_flags = (frv_flags & ~EF_FRV_CPU_MASK) | cpu_flags; | |
410 | } | |
411 | break; | |
412 | ||
413 | case OPTION_PIC: | |
414 | frv_flags |= EF_FRV_PIC; | |
415 | frv_pic_p = 1; | |
416 | frv_pic_flag = "-fpic"; | |
417 | break; | |
418 | ||
419 | case OPTION_BIGPIC: | |
420 | frv_flags |= EF_FRV_BIGPIC; | |
421 | frv_pic_p = 1; | |
422 | frv_pic_flag = "-fPIC"; | |
423 | break; | |
424 | ||
425 | case OPTION_LIBPIC: | |
426 | frv_flags |= (EF_FRV_LIBPIC | EF_FRV_G0); | |
427 | frv_pic_p = 1; | |
428 | frv_pic_flag = "-mlibrary-pic"; | |
429 | g_switch_value = 0; | |
430 | break; | |
431 | ||
99d09cdb AO |
432 | case OPTION_FDPIC: |
433 | frv_flags |= EF_FRV_FDPIC; | |
434 | frv_pic_flag = "-mfdpic"; | |
435 | break; | |
436 | ||
996991aa AO |
437 | case OPTION_NOPIC: |
438 | frv_flags &= ~(EF_FRV_FDPIC | EF_FRV_PIC | |
439 | | EF_FRV_BIGPIC | EF_FRV_LIBPIC); | |
440 | frv_pic_flag = 0; | |
441 | break; | |
442 | ||
0ebb9a87 DB |
443 | case OPTION_TOMCAT_DEBUG: |
444 | tomcat_debug = 1; | |
445 | break; | |
446 | ||
447 | case OPTION_TOMCAT_STATS: | |
448 | tomcat_stats = 1; | |
449 | break; | |
450 | } | |
451 | ||
452 | return 1; | |
453 | } | |
454 | ||
455 | void | |
42477147 | 456 | md_show_usage (FILE * stream) |
0ebb9a87 DB |
457 | { |
458 | fprintf (stream, _("FRV specific command line options:\n")); | |
42477147 NC |
459 | fprintf (stream, _("-G n Put data <= n bytes in the small data area\n")); |
460 | fprintf (stream, _("-mgpr-32 Mark generated file as only using 32 GPRs\n")); | |
461 | fprintf (stream, _("-mgpr-64 Mark generated file as using all 64 GPRs\n")); | |
462 | fprintf (stream, _("-mfpr-32 Mark generated file as only using 32 FPRs\n")); | |
463 | fprintf (stream, _("-mfpr-64 Mark generated file as using all 64 FPRs\n")); | |
464 | fprintf (stream, _("-msoft-float Mark generated file as using software FP\n")); | |
465 | fprintf (stream, _("-mdword Mark generated file as using a 8-byte stack alignment\n")); | |
466 | fprintf (stream, _("-mno-dword Mark generated file as using a 4-byte stack alignment\n")); | |
467 | fprintf (stream, _("-mdouble Mark generated file as using double precision FP insns\n")); | |
468 | fprintf (stream, _("-mmedia Mark generated file as using media insns\n")); | |
469 | fprintf (stream, _("-mmuladd Mark generated file as using multiply add/subtract insns\n")); | |
470 | fprintf (stream, _("-mpack Allow instructions to be packed\n")); | |
471 | fprintf (stream, _("-mno-pack Do not allow instructions to be packed\n")); | |
472 | fprintf (stream, _("-mpic Mark generated file as using small position independent code\n")); | |
473 | fprintf (stream, _("-mPIC Mark generated file as using large position independent code\n")); | |
474 | fprintf (stream, _("-mlibrary-pic Mark generated file as using position indepedent code for libraries\n")); | |
475 | fprintf (stream, _("-mfdpic Assemble for the FDPIC ABI\n")); | |
476 | fprintf (stream, _("-mnopic Disable -mpic, -mPIC, -mlibrary-pic and -mfdpic\n")); | |
676a64f4 | 477 | fprintf (stream, _("-mcpu={fr500|fr550|fr400|fr405|fr450|fr300|frv|simple|tomcat}\n")); |
42477147 NC |
478 | fprintf (stream, _(" Record the cpu type\n")); |
479 | fprintf (stream, _("-mtomcat-stats Print out stats for tomcat workarounds\n")); | |
480 | fprintf (stream, _("-mtomcat-debug Debug tomcat workarounds\n")); | |
0ebb9a87 DB |
481 | } |
482 | ||
483 | \f | |
484 | void | |
5a49b8ac | 485 | md_begin (void) |
0ebb9a87 DB |
486 | { |
487 | /* Initialize the `cgen' interface. */ | |
488 | ||
489 | /* Set the machine number and endian. */ | |
490 | gas_cgen_cpu_desc = frv_cgen_cpu_open (CGEN_CPU_OPEN_MACHS, 0, | |
491 | CGEN_CPU_OPEN_ENDIAN, | |
492 | CGEN_ENDIAN_BIG, | |
493 | CGEN_CPU_OPEN_END); | |
494 | frv_cgen_init_asm (gas_cgen_cpu_desc); | |
495 | ||
496 | /* This is a callback from cgen to gas to parse operands. */ | |
497 | cgen_set_parse_operand_fn (gas_cgen_cpu_desc, gas_cgen_parse_operand); | |
498 | ||
499 | /* Set the ELF flags if desired. */ | |
500 | if (frv_flags) | |
501 | bfd_set_private_flags (stdoutput, frv_flags); | |
502 | ||
503 | /* Set the machine type */ | |
504 | bfd_default_set_arch_mach (stdoutput, bfd_arch_frv, frv_mach); | |
505 | ||
506 | /* Set up gp size so we can put local common items in .sbss */ | |
507 | bfd_set_gp_size (stdoutput, g_switch_value); | |
508 | ||
509 | frv_vliw_reset (& vliw, frv_mach, frv_flags); | |
510 | } | |
511 | ||
996991aa AO |
512 | bfd_boolean |
513 | frv_md_fdpic_enabled (void) | |
514 | { | |
515 | return (frv_flags & EF_FRV_FDPIC) != 0; | |
516 | } | |
517 | ||
0ebb9a87 DB |
518 | int chain_num = 0; |
519 | ||
5a49b8ac AM |
520 | static struct vliw_insn_list * |
521 | frv_insert_vliw_insn (bfd_boolean count) | |
0ebb9a87 DB |
522 | { |
523 | struct vliw_insn_list *vliw_insn_list_entry; | |
524 | struct vliw_chain *vliw_chain_entry; | |
525 | ||
526 | if (current_vliw_chain == NULL) | |
527 | { | |
528 | vliw_chain_entry = (struct vliw_chain *) xmalloc (sizeof (struct vliw_chain)); | |
529 | vliw_chain_entry->insn_count = 0; | |
530 | vliw_chain_entry->insn_list = NULL; | |
531 | vliw_chain_entry->next = NULL; | |
532 | vliw_chain_entry->num = chain_num++; | |
533 | ||
534 | if (!vliw_chain_top) | |
535 | vliw_chain_top = vliw_chain_entry; | |
536 | current_vliw_chain = vliw_chain_entry; | |
537 | if (previous_vliw_chain) | |
538 | previous_vliw_chain->next = vliw_chain_entry; | |
539 | } | |
540 | ||
541 | vliw_insn_list_entry = (struct vliw_insn_list *) xmalloc (sizeof (struct vliw_insn_list)); | |
542 | vliw_insn_list_entry->type = VLIW_GENERIC_TYPE; | |
543 | vliw_insn_list_entry->insn = NULL; | |
544 | vliw_insn_list_entry->sym = NULL; | |
545 | vliw_insn_list_entry->snop_frag = NULL; | |
546 | vliw_insn_list_entry->dnop_frag = NULL; | |
547 | vliw_insn_list_entry->next = NULL; | |
548 | ||
549 | if (count) | |
550 | current_vliw_chain->insn_count++; | |
551 | ||
552 | if (current_vliw_insn) | |
553 | current_vliw_insn->next = vliw_insn_list_entry; | |
554 | current_vliw_insn = vliw_insn_list_entry; | |
555 | ||
556 | if (!current_vliw_chain->insn_list) | |
557 | current_vliw_chain->insn_list = current_vliw_insn; | |
558 | ||
559 | return vliw_insn_list_entry; | |
560 | } | |
561 | ||
562 | /* Identify the following cases: | |
563 | ||
564 | 1) A VLIW insn that contains both a branch and the branch destination. | |
565 | This requires the insertion of two vliw instructions before the | |
566 | branch. The first consists of two nops. The second consists of | |
567 | a single nop. | |
568 | ||
569 | 2) A single instruction VLIW insn which is the destination of a branch | |
570 | that is in the next VLIW insn. This requires the insertion of a vliw | |
571 | insn containing two nops before the branch. | |
572 | ||
573 | 3) A double instruction VLIW insn which contains the destination of a | |
574 | branch that is in the next VLIW insn. This requires the insertion of | |
575 | a VLIW insn containing a single nop before the branch. | |
576 | ||
577 | 4) A single instruction VLIW insn which contains branch destination (x), | |
578 | followed by a single instruction VLIW insn which does not contain | |
579 | the branch to (x), followed by a VLIW insn which does contain the branch | |
580 | to (x). This requires the insertion of a VLIW insn containing a single | |
581 | nop before the VLIW instruction containing the branch. | |
582 | ||
583 | */ | |
584 | #define FRV_IS_NOP(insn) (insn.buffer[0] == FRV_NOP_PACK || insn.buffer[0] == FRV_NOP_NOPACK) | |
585 | #define FRV_NOP_PACK 0x00880000 /* ori.p gr0,0,gr0 */ | |
586 | #define FRV_NOP_NOPACK 0x80880000 /* ori gr0,0,gr0 */ | |
587 | ||
588 | /* Check a vliw insn for an insn of type containing the sym passed in label_sym. */ | |
589 | ||
590 | static struct vliw_insn_list * | |
5a49b8ac AM |
591 | frv_find_in_vliw (enum vliw_insn_type vliw_insn_type, |
592 | struct vliw_chain *this_chain, | |
593 | symbolS *label_sym) | |
0ebb9a87 DB |
594 | { |
595 | ||
596 | struct vliw_insn_list *the_insn; | |
597 | ||
598 | if (!this_chain) | |
599 | return NULL; | |
600 | ||
601 | for (the_insn = this_chain->insn_list; the_insn; the_insn = the_insn->next) | |
602 | { | |
603 | if (the_insn->type == vliw_insn_type | |
604 | && the_insn->sym == label_sym) | |
605 | return the_insn; | |
606 | } | |
607 | ||
608 | return NULL; | |
609 | } | |
610 | ||
611 | enum vliw_nop_type | |
612 | { | |
613 | /* A Vliw insn containing a single nop insn. */ | |
614 | VLIW_SINGLE_NOP, | |
615 | ||
616 | /* A Vliw insn containing two nop insns. */ | |
617 | VLIW_DOUBLE_NOP, | |
618 | ||
619 | /* Two vliw insns. The first containing two nop insns. | |
620 | The second contain a single nop insn. */ | |
621 | VLIW_DOUBLE_THEN_SINGLE_NOP | |
622 | }; | |
623 | ||
624 | static void | |
5a49b8ac | 625 | frv_debug_tomcat (struct vliw_chain *start_chain) |
0ebb9a87 DB |
626 | { |
627 | struct vliw_chain *this_chain; | |
628 | struct vliw_insn_list *this_insn; | |
629 | int i = 1; | |
630 | ||
631 | for (this_chain = start_chain; this_chain; this_chain = this_chain->next, i++) | |
632 | { | |
633 | fprintf (stderr, "\nVliw Insn #%d, #insns: %d\n", i, this_chain->insn_count); | |
634 | ||
635 | for (this_insn = this_chain->insn_list; this_insn; this_insn = this_insn->next) | |
636 | { | |
637 | if (this_insn->type == VLIW_LABEL_TYPE) | |
8ad7c533 | 638 | fprintf (stderr, "Label Value: %p\n", this_insn->sym); |
0ebb9a87 | 639 | else if (this_insn->type == VLIW_BRANCH_TYPE) |
8ad7c533 | 640 | fprintf (stderr, "%s to %p\n", this_insn->insn->base->name, this_insn->sym); |
0ebb9a87 | 641 | else if (this_insn->type == VLIW_BRANCH_HAS_NOPS) |
8ad7c533 | 642 | fprintf (stderr, "nop'd %s to %p\n", this_insn->insn->base->name, this_insn->sym); |
0ebb9a87 DB |
643 | else if (this_insn->type == VLIW_NOP_TYPE) |
644 | fprintf (stderr, "Nop\n"); | |
645 | else | |
646 | fprintf (stderr, " %s\n", this_insn->insn->base->name); | |
647 | } | |
648 | } | |
649 | } | |
650 | ||
0ebb9a87 | 651 | static void |
5a49b8ac | 652 | frv_adjust_vliw_count (struct vliw_chain *this_chain) |
0ebb9a87 DB |
653 | { |
654 | struct vliw_insn_list *this_insn; | |
655 | ||
656 | this_chain->insn_count = 0; | |
657 | ||
658 | for (this_insn = this_chain->insn_list; | |
659 | this_insn; | |
660 | this_insn = this_insn->next) | |
661 | { | |
662 | if (this_insn->type != VLIW_LABEL_TYPE) | |
663 | this_chain->insn_count++; | |
664 | } | |
665 | ||
666 | } | |
667 | ||
668 | /* Insert the desired nop combination in the vliw chain before insert_before_insn. | |
669 | Rechain the vliw insn. */ | |
670 | ||
0ebb9a87 | 671 | static struct vliw_chain * |
5a49b8ac AM |
672 | frv_tomcat_shuffle (enum vliw_nop_type this_nop_type, |
673 | struct vliw_chain *vliw_to_split, | |
674 | struct vliw_insn_list *insert_before_insn) | |
0ebb9a87 DB |
675 | { |
676 | ||
b34976b6 | 677 | bfd_boolean pack_prev = FALSE; |
0ebb9a87 DB |
678 | struct vliw_chain *return_me = NULL; |
679 | struct vliw_insn_list *prev_insn = NULL; | |
680 | struct vliw_insn_list *curr_insn = vliw_to_split->insn_list; | |
681 | ||
682 | struct vliw_chain *double_nop = (struct vliw_chain *) xmalloc (sizeof (struct vliw_chain)); | |
683 | struct vliw_chain *single_nop = (struct vliw_chain *) xmalloc (sizeof (struct vliw_chain)); | |
684 | struct vliw_chain *second_part = (struct vliw_chain *) xmalloc (sizeof (struct vliw_chain)); | |
685 | struct vliw_chain *curr_vliw = vliw_chain_top; | |
686 | struct vliw_chain *prev_vliw = NULL; | |
687 | ||
688 | while (curr_insn && curr_insn != insert_before_insn) | |
689 | { | |
690 | /* We can't set the packing bit on a label. If we have the case | |
691 | label 1: | |
692 | label 2: | |
693 | label 3: | |
694 | branch that needs nops | |
695 | Then don't set pack bit later. */ | |
696 | ||
697 | if (curr_insn->type != VLIW_LABEL_TYPE) | |
b34976b6 | 698 | pack_prev = TRUE; |
0ebb9a87 DB |
699 | prev_insn = curr_insn; |
700 | curr_insn = curr_insn->next; | |
701 | } | |
702 | ||
703 | while (curr_vliw && curr_vliw != vliw_to_split) | |
704 | { | |
705 | prev_vliw = curr_vliw; | |
706 | curr_vliw = curr_vliw->next; | |
707 | } | |
708 | ||
709 | switch (this_nop_type) | |
710 | { | |
711 | case VLIW_SINGLE_NOP: | |
712 | if (!prev_insn) | |
713 | { | |
714 | /* Branch is first, Insert the NOP prior to this vliw insn. */ | |
715 | if (prev_vliw) | |
716 | prev_vliw->next = single_nop; | |
717 | else | |
718 | vliw_chain_top = single_nop; | |
719 | single_nop->next = vliw_to_split; | |
720 | vliw_to_split->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
721 | return_me = vliw_to_split; | |
722 | } | |
723 | else | |
724 | { | |
725 | /* Set the packing bit on the previous insn. */ | |
726 | if (pack_prev) | |
727 | { | |
2132e3a3 | 728 | char *buffer = prev_insn->address; |
0ebb9a87 DB |
729 | buffer[0] |= 0x80; |
730 | } | |
731 | /* The branch is in the middle. Split this vliw insn into first | |
732 | and second parts. Insert the NOP inbetween. */ | |
733 | ||
734 | second_part->insn_list = insert_before_insn; | |
735 | second_part->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
736 | second_part->next = vliw_to_split->next; | |
737 | frv_adjust_vliw_count (second_part); | |
738 | ||
739 | single_nop->next = second_part; | |
740 | ||
741 | vliw_to_split->next = single_nop; | |
742 | prev_insn->next = NULL; | |
743 | ||
744 | return_me = second_part; | |
745 | frv_adjust_vliw_count (vliw_to_split); | |
746 | } | |
747 | break; | |
748 | ||
749 | case VLIW_DOUBLE_NOP: | |
750 | if (!prev_insn) | |
751 | { | |
752 | /* Branch is first, Insert the NOP prior to this vliw insn. */ | |
753 | if (prev_vliw) | |
754 | prev_vliw->next = double_nop; | |
755 | else | |
756 | vliw_chain_top = double_nop; | |
757 | ||
758 | double_nop->next = vliw_to_split; | |
759 | return_me = vliw_to_split; | |
760 | vliw_to_split->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
761 | } | |
762 | else | |
763 | { | |
764 | /* Set the packing bit on the previous insn. */ | |
765 | if (pack_prev) | |
766 | { | |
2132e3a3 | 767 | char *buffer = prev_insn->address; |
0ebb9a87 DB |
768 | buffer[0] |= 0x80; |
769 | } | |
770 | ||
771 | /* The branch is in the middle. Split this vliw insn into first | |
772 | and second parts. Insert the NOP inbetween. */ | |
773 | second_part->insn_list = insert_before_insn; | |
774 | second_part->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
775 | second_part->next = vliw_to_split->next; | |
776 | frv_adjust_vliw_count (second_part); | |
777 | ||
778 | double_nop->next = second_part; | |
779 | ||
780 | vliw_to_split->next = single_nop; | |
781 | prev_insn->next = NULL; | |
782 | frv_adjust_vliw_count (vliw_to_split); | |
783 | ||
784 | return_me = second_part; | |
785 | } | |
786 | break; | |
787 | ||
788 | case VLIW_DOUBLE_THEN_SINGLE_NOP: | |
789 | double_nop->next = single_nop; | |
790 | double_nop->insn_count = 2; | |
791 | double_nop->insn_list = &double_nop_insn; | |
792 | single_nop->insn_count = 1; | |
793 | single_nop->insn_list = &single_nop_insn; | |
794 | ||
795 | if (!prev_insn) | |
796 | { | |
797 | /* The branch is the first insn in this vliw. Don't split the vliw. Insert | |
798 | the nops prior to this vliw. */ | |
799 | if (prev_vliw) | |
800 | prev_vliw->next = double_nop; | |
801 | else | |
802 | vliw_chain_top = double_nop; | |
803 | ||
804 | single_nop->next = vliw_to_split; | |
805 | return_me = vliw_to_split; | |
806 | vliw_to_split->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
807 | } | |
808 | else | |
809 | { | |
810 | /* Set the packing bit on the previous insn. */ | |
811 | if (pack_prev) | |
812 | { | |
2132e3a3 | 813 | char *buffer = prev_insn->address; |
0ebb9a87 DB |
814 | buffer[0] |= 0x80; |
815 | } | |
816 | ||
817 | /* The branch is in the middle of this vliw insn. Split into first and | |
818 | second parts. Insert the nop vliws in between. */ | |
819 | second_part->insn_list = insert_before_insn; | |
820 | second_part->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
821 | second_part->next = vliw_to_split->next; | |
822 | frv_adjust_vliw_count (second_part); | |
823 | ||
824 | single_nop->next = second_part; | |
825 | ||
826 | vliw_to_split->next = double_nop; | |
827 | prev_insn->next = NULL; | |
828 | frv_adjust_vliw_count (vliw_to_split); | |
829 | ||
830 | return_me = second_part; | |
831 | } | |
832 | break; | |
833 | } | |
834 | ||
835 | return return_me; | |
836 | } | |
837 | ||
838 | static void | |
5a49b8ac | 839 | frv_tomcat_analyze_vliw_chains (void) |
0ebb9a87 DB |
840 | { |
841 | struct vliw_chain *vliw1 = NULL; | |
842 | struct vliw_chain *vliw2 = NULL; | |
843 | struct vliw_chain *vliw3 = NULL; | |
844 | ||
845 | struct vliw_insn_list *this_insn = NULL; | |
846 | struct vliw_insn_list *temp_insn = NULL; | |
847 | ||
848 | /* We potentially need to look at three VLIW insns to determine if the | |
849 | workaround is required. Set them up. Ignore existing nops during analysis. */ | |
850 | ||
851 | #define FRV_SET_VLIW_WINDOW(VLIW1, VLIW2, VLIW3) \ | |
852 | if (VLIW1 && VLIW1->next) \ | |
853 | VLIW2 = VLIW1->next; \ | |
854 | else \ | |
855 | VLIW2 = NULL; \ | |
856 | if (VLIW2 && VLIW2->next) \ | |
857 | VLIW3 = VLIW2->next; \ | |
858 | else \ | |
859 | VLIW3 = NULL | |
860 | ||
861 | vliw1 = vliw_chain_top; | |
862 | ||
863 | workaround_top: | |
864 | ||
865 | FRV_SET_VLIW_WINDOW (vliw1, vliw2, vliw3); | |
866 | ||
867 | if (!vliw1) | |
868 | return; | |
869 | ||
870 | if (vliw1->insn_count == 1) | |
871 | { | |
872 | /* check vliw1 for a label. */ | |
873 | if (vliw1->insn_list->type == VLIW_LABEL_TYPE) | |
874 | { | |
875 | temp_insn = frv_find_in_vliw (VLIW_BRANCH_TYPE, vliw2, vliw1->insn_list->sym); | |
876 | if (temp_insn) | |
877 | { | |
878 | vliw1 = frv_tomcat_shuffle (VLIW_DOUBLE_NOP, vliw2, vliw1->insn_list); | |
879 | temp_insn->dnop_frag->fr_subtype = NOP_KEEP; | |
880 | vliw1 = vliw1->next; | |
881 | if (tomcat_stats) | |
882 | tomcat_doubles++; | |
883 | goto workaround_top; | |
884 | } | |
885 | else if (vliw2 | |
886 | && vliw2->insn_count == 1 | |
887 | && (temp_insn = frv_find_in_vliw (VLIW_BRANCH_TYPE, vliw3, vliw1->insn_list->sym)) != NULL) | |
888 | { | |
889 | temp_insn->snop_frag->fr_subtype = NOP_KEEP; | |
890 | vliw1 = frv_tomcat_shuffle (VLIW_SINGLE_NOP, vliw3, vliw3->insn_list); | |
891 | if (tomcat_stats) | |
892 | tomcat_singles++; | |
893 | goto workaround_top; | |
894 | } | |
895 | } | |
896 | } | |
897 | ||
898 | if (vliw1->insn_count == 2) | |
899 | { | |
91d6fa6a | 900 | /* Check vliw1 for a label. */ |
0ebb9a87 DB |
901 | for (this_insn = vliw1->insn_list; this_insn; this_insn = this_insn->next) |
902 | { | |
903 | if (this_insn->type == VLIW_LABEL_TYPE) | |
904 | { | |
a08333bb | 905 | if ((temp_insn = frv_find_in_vliw (VLIW_BRANCH_TYPE, vliw2, this_insn->sym)) != NULL) |
0ebb9a87 DB |
906 | { |
907 | temp_insn->snop_frag->fr_subtype = NOP_KEEP; | |
908 | vliw1 = frv_tomcat_shuffle (VLIW_SINGLE_NOP, vliw2, this_insn); | |
909 | if (tomcat_stats) | |
910 | tomcat_singles++; | |
911 | } | |
912 | else | |
913 | vliw1 = vliw1->next; | |
914 | goto workaround_top; | |
915 | } | |
916 | } | |
917 | } | |
918 | /* Examine each insn in this VLIW. Look for the workaround criteria. */ | |
919 | for (this_insn = vliw1->insn_list; this_insn; this_insn = this_insn->next) | |
920 | { | |
921 | /* Don't look at labels or nops. */ | |
922 | while (this_insn | |
923 | && (this_insn->type == VLIW_LABEL_TYPE | |
924 | || this_insn->type == VLIW_NOP_TYPE | |
925 | || this_insn->type == VLIW_BRANCH_HAS_NOPS)) | |
926 | this_insn = this_insn->next; | |
927 | ||
928 | if (!this_insn) | |
929 | { | |
930 | vliw1 = vliw2; | |
931 | goto workaround_top; | |
932 | } | |
933 | ||
934 | if (frv_is_branch_insn (this_insn->insn)) | |
935 | { | |
a08333bb | 936 | if ((temp_insn = frv_find_in_vliw (VLIW_LABEL_TYPE, vliw1, this_insn->sym)) != NULL) |
0ebb9a87 DB |
937 | { |
938 | /* Insert [nop/nop] [nop] before branch. */ | |
939 | this_insn->snop_frag->fr_subtype = NOP_KEEP; | |
940 | this_insn->dnop_frag->fr_subtype = NOP_KEEP; | |
941 | vliw1 = frv_tomcat_shuffle (VLIW_DOUBLE_THEN_SINGLE_NOP, vliw1, this_insn); | |
942 | goto workaround_top; | |
943 | } | |
944 | } | |
945 | ||
946 | ||
947 | } | |
948 | /* This vliw insn checks out okay. Take a look at the next one. */ | |
949 | vliw1 = vliw1->next; | |
950 | goto workaround_top; | |
951 | } | |
952 | ||
953 | void | |
5a49b8ac | 954 | frv_tomcat_workaround (void) |
0ebb9a87 DB |
955 | { |
956 | if (frv_mach != bfd_mach_frvtomcat) | |
957 | return; | |
958 | ||
959 | if (tomcat_debug) | |
960 | frv_debug_tomcat (vliw_chain_top); | |
961 | ||
962 | frv_tomcat_analyze_vliw_chains (); | |
963 | ||
964 | if (tomcat_stats) | |
965 | { | |
966 | fprintf (stderr, "Inserted %d Single Nops\n", tomcat_singles); | |
967 | fprintf (stderr, "Inserted %d Double Nops\n", tomcat_doubles); | |
968 | } | |
969 | } | |
970 | ||
1ae31fee DB |
971 | static int |
972 | fr550_check_insn_acc_range (frv_insn *insn, int low, int hi) | |
973 | { | |
974 | int acc; | |
975 | switch (CGEN_INSN_NUM (insn->insn)) | |
976 | { | |
977 | case FRV_INSN_MADDACCS: | |
978 | case FRV_INSN_MSUBACCS: | |
979 | case FRV_INSN_MDADDACCS: | |
980 | case FRV_INSN_MDSUBACCS: | |
981 | case FRV_INSN_MASACCS: | |
982 | case FRV_INSN_MDASACCS: | |
983 | acc = insn->fields.f_ACC40Si; | |
984 | if (acc < low || acc > hi) | |
985 | return 1; /* out of range */ | |
986 | acc = insn->fields.f_ACC40Sk; | |
987 | if (acc < low || acc > hi) | |
988 | return 1; /* out of range */ | |
989 | break; | |
990 | case FRV_INSN_MMULHS: | |
991 | case FRV_INSN_MMULHU: | |
992 | case FRV_INSN_MMULXHS: | |
993 | case FRV_INSN_MMULXHU: | |
994 | case FRV_INSN_CMMULHS: | |
995 | case FRV_INSN_CMMULHU: | |
996 | case FRV_INSN_MQMULHS: | |
997 | case FRV_INSN_MQMULHU: | |
998 | case FRV_INSN_MQMULXHS: | |
999 | case FRV_INSN_MQMULXHU: | |
1000 | case FRV_INSN_CMQMULHS: | |
1001 | case FRV_INSN_CMQMULHU: | |
1002 | case FRV_INSN_MMACHS: | |
1003 | case FRV_INSN_MMRDHS: | |
1004 | case FRV_INSN_CMMACHS: | |
1005 | case FRV_INSN_MQMACHS: | |
1006 | case FRV_INSN_CMQMACHS: | |
1007 | case FRV_INSN_MQXMACHS: | |
1008 | case FRV_INSN_MQXMACXHS: | |
1009 | case FRV_INSN_MQMACXHS: | |
1010 | case FRV_INSN_MCPXRS: | |
1011 | case FRV_INSN_MCPXIS: | |
1012 | case FRV_INSN_CMCPXRS: | |
1013 | case FRV_INSN_CMCPXIS: | |
1014 | case FRV_INSN_MQCPXRS: | |
1015 | case FRV_INSN_MQCPXIS: | |
1016 | acc = insn->fields.f_ACC40Sk; | |
1017 | if (acc < low || acc > hi) | |
1018 | return 1; /* out of range */ | |
1019 | break; | |
1020 | case FRV_INSN_MMACHU: | |
1021 | case FRV_INSN_MMRDHU: | |
1022 | case FRV_INSN_CMMACHU: | |
1023 | case FRV_INSN_MQMACHU: | |
1024 | case FRV_INSN_CMQMACHU: | |
1025 | case FRV_INSN_MCPXRU: | |
1026 | case FRV_INSN_MCPXIU: | |
1027 | case FRV_INSN_CMCPXRU: | |
1028 | case FRV_INSN_CMCPXIU: | |
1029 | case FRV_INSN_MQCPXRU: | |
1030 | case FRV_INSN_MQCPXIU: | |
1031 | acc = insn->fields.f_ACC40Uk; | |
1032 | if (acc < low || acc > hi) | |
1033 | return 1; /* out of range */ | |
1034 | break; | |
1035 | default: | |
1036 | break; | |
1037 | } | |
1038 | return 0; /* all is ok */ | |
1039 | } | |
1040 | ||
1041 | static int | |
91d6fa6a | 1042 | fr550_check_acc_range (FRV_VLIW *vlw, frv_insn *insn) |
1ae31fee | 1043 | { |
91d6fa6a | 1044 | switch ((*vlw->current_vliw)[vlw->next_slot - 1]) |
1ae31fee DB |
1045 | { |
1046 | case UNIT_FM0: | |
1047 | case UNIT_FM2: | |
1048 | return fr550_check_insn_acc_range (insn, 0, 3); | |
1049 | case UNIT_FM1: | |
1050 | case UNIT_FM3: | |
1051 | return fr550_check_insn_acc_range (insn, 4, 7); | |
1052 | default: | |
1053 | break; | |
1054 | } | |
1055 | return 0; /* all is ok */ | |
1056 | } | |
1057 | ||
676a64f4 RS |
1058 | /* Return true if the target implements instruction INSN. */ |
1059 | ||
1060 | static bfd_boolean | |
1061 | target_implements_insn_p (const CGEN_INSN *insn) | |
1062 | { | |
1063 | switch (frv_mach) | |
1064 | { | |
1065 | default: | |
1066 | /* bfd_mach_frv or generic. */ | |
1067 | return TRUE; | |
1068 | ||
1069 | case bfd_mach_fr300: | |
1070 | case bfd_mach_frvsimple: | |
1071 | return CGEN_INSN_MACH_HAS_P (insn, MACH_SIMPLE); | |
1072 | ||
1073 | case bfd_mach_fr400: | |
1074 | return ((fr400_audio || !CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_AUDIO)) | |
1075 | && CGEN_INSN_MACH_HAS_P (insn, MACH_FR400)); | |
1076 | ||
1077 | case bfd_mach_fr450: | |
1078 | return CGEN_INSN_MACH_HAS_P (insn, MACH_FR450); | |
1079 | ||
1080 | case bfd_mach_fr500: | |
1081 | return CGEN_INSN_MACH_HAS_P (insn, MACH_FR500); | |
1082 | ||
1083 | case bfd_mach_fr550: | |
1084 | return CGEN_INSN_MACH_HAS_P (insn, MACH_FR550); | |
1085 | } | |
1086 | } | |
1087 | ||
0ebb9a87 | 1088 | void |
5a49b8ac | 1089 | md_assemble (char *str) |
0ebb9a87 DB |
1090 | { |
1091 | frv_insn insn; | |
1092 | char *errmsg; | |
1093 | int packing_constraint; | |
1094 | finished_insnS finished_insn; | |
1095 | fragS *double_nop_frag = NULL; | |
1096 | fragS *single_nop_frag = NULL; | |
1097 | struct vliw_insn_list *vliw_insn_list_entry = NULL; | |
1098 | ||
1099 | /* Initialize GAS's cgen interface for a new instruction. */ | |
1100 | gas_cgen_init_parse (); | |
1101 | ||
99d09cdb AO |
1102 | memset (&insn, 0, sizeof (insn)); |
1103 | ||
0ebb9a87 DB |
1104 | insn.insn = frv_cgen_assemble_insn |
1105 | (gas_cgen_cpu_desc, str, & insn.fields, insn.buffer, &errmsg); | |
1106 | ||
1107 | if (!insn.insn) | |
1108 | { | |
20203fb9 | 1109 | as_bad ("%s", errmsg); |
0ebb9a87 DB |
1110 | return; |
1111 | } | |
1112 | ||
1113 | /* If the cpu is tomcat, then we need to insert nops to workaround | |
1114 | hardware limitations. We need to keep track of each vliw unit | |
1115 | and examine the length of the unit and the individual insns | |
1116 | within the unit to determine the number and location of the | |
1117 | required nops. */ | |
1118 | if (frv_mach == bfd_mach_frvtomcat) | |
1119 | { | |
1120 | /* If we've just finished a VLIW insn OR this is a branch, | |
1121 | then start up a new frag. Fill it with nops. We will get rid | |
1122 | of those that are not required after we've seen all of the | |
1123 | instructions but before we start resolving fixups. */ | |
1124 | if ( !FRV_IS_NOP (insn) | |
1125 | && (frv_is_branch_insn (insn.insn) || insn.fields.f_pack)) | |
1126 | { | |
1127 | char *buffer; | |
1128 | ||
1129 | frag_wane (frag_now); | |
1130 | frag_new (0); | |
1131 | double_nop_frag = frag_now; | |
1132 | buffer = frag_var (rs_machine_dependent, 8, 8, NOP_DELETE, NULL, 0, 0); | |
1133 | md_number_to_chars (buffer, FRV_NOP_PACK, 4); | |
1134 | md_number_to_chars (buffer+4, FRV_NOP_NOPACK, 4); | |
1135 | ||
1136 | frag_wane (frag_now); | |
1137 | frag_new (0); | |
1138 | single_nop_frag = frag_now; | |
1139 | buffer = frag_var (rs_machine_dependent, 4, 4, NOP_DELETE, NULL, 0, 0); | |
1140 | md_number_to_chars (buffer, FRV_NOP_NOPACK, 4); | |
1141 | } | |
1142 | ||
1143 | vliw_insn_list_entry = frv_insert_vliw_insn (DO_COUNT); | |
1144 | vliw_insn_list_entry->insn = insn.insn; | |
1145 | if (frv_is_branch_insn (insn.insn)) | |
1146 | vliw_insn_list_entry->type = VLIW_BRANCH_TYPE; | |
1147 | ||
1148 | if ( !FRV_IS_NOP (insn) | |
1149 | && (frv_is_branch_insn (insn.insn) || insn.fields.f_pack)) | |
1150 | { | |
1151 | vliw_insn_list_entry->snop_frag = single_nop_frag; | |
1152 | vliw_insn_list_entry->dnop_frag = double_nop_frag; | |
1153 | } | |
1154 | } | |
1155 | ||
1156 | /* Make sure that this insn does not violate the VLIW packing constraints. */ | |
1157 | /* -mno-pack disallows any packing whatsoever. */ | |
1158 | if (frv_flags & EF_FRV_NOPACK) | |
1159 | { | |
1160 | if (! insn.fields.f_pack) | |
1161 | { | |
1162 | as_bad (_("VLIW packing used for -mno-pack")); | |
1163 | return; | |
1164 | } | |
1165 | } | |
1166 | /* -mcpu=FRV is an idealized FR-V implementation that supports all of the | |
1167 | instructions, don't do vliw checking. */ | |
1168 | else if (frv_mach != bfd_mach_frv) | |
1169 | { | |
676a64f4 RS |
1170 | if (!target_implements_insn_p (insn.insn)) |
1171 | { | |
1172 | as_bad (_("Instruction not supported by this architecture")); | |
1173 | return; | |
1174 | } | |
0ebb9a87 | 1175 | packing_constraint = frv_vliw_add_insn (& vliw, insn.insn); |
1ae31fee DB |
1176 | if (frv_mach == bfd_mach_fr550 && ! packing_constraint) |
1177 | packing_constraint = fr550_check_acc_range (& vliw, & insn); | |
0ebb9a87 DB |
1178 | if (insn.fields.f_pack) |
1179 | frv_vliw_reset (& vliw, frv_mach, frv_flags); | |
1180 | if (packing_constraint) | |
1181 | { | |
1182 | as_bad (_("VLIW packing constraint violation")); | |
1183 | return; | |
1184 | } | |
1185 | } | |
1186 | ||
1187 | /* Doesn't really matter what we pass for RELAX_P here. */ | |
1188 | gas_cgen_finish_insn (insn.insn, insn.buffer, | |
1189 | CGEN_FIELDS_BITSIZE (& insn.fields), 1, &finished_insn); | |
1190 | ||
1191 | ||
1192 | /* If the cpu is tomcat, then we need to insert nops to workaround | |
1193 | hardware limitations. We need to keep track of each vliw unit | |
1194 | and examine the length of the unit and the individual insns | |
1195 | within the unit to determine the number and location of the | |
1196 | required nops. */ | |
1197 | if (frv_mach == bfd_mach_frvtomcat) | |
1198 | { | |
1199 | if (vliw_insn_list_entry) | |
1200 | vliw_insn_list_entry->address = finished_insn.addr; | |
1201 | else | |
1202 | abort(); | |
1203 | ||
1204 | if (insn.fields.f_pack) | |
1205 | { | |
1206 | /* We've completed a VLIW insn. */ | |
1207 | previous_vliw_chain = current_vliw_chain; | |
1208 | current_vliw_chain = NULL; | |
1209 | current_vliw_insn = NULL; | |
1210 | } | |
1211 | } | |
1212 | } | |
1213 | ||
1214 | /* The syntax in the manual says constants begin with '#'. | |
1215 | We just ignore it. */ | |
1216 | ||
1217 | void | |
5a49b8ac | 1218 | md_operand (expressionS *expressionP) |
0ebb9a87 DB |
1219 | { |
1220 | if (* input_line_pointer == '#') | |
1221 | { | |
1222 | input_line_pointer ++; | |
1223 | expression (expressionP); | |
1224 | } | |
1225 | } | |
1226 | ||
1227 | valueT | |
5a49b8ac | 1228 | md_section_align (segT segment, valueT size) |
0ebb9a87 DB |
1229 | { |
1230 | int align = bfd_get_section_alignment (stdoutput, segment); | |
1231 | return ((size + (1 << align) - 1) & (-1 << align)); | |
1232 | } | |
1233 | ||
1234 | symbolS * | |
5a49b8ac | 1235 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
0ebb9a87 DB |
1236 | { |
1237 | return 0; | |
1238 | } | |
1239 | \f | |
1240 | /* Interface to relax_segment. */ | |
1241 | ||
1242 | /* FIXME: Build table by hand, get it working, then machine generate. */ | |
1243 | const relax_typeS md_relax_table[] = | |
1244 | { | |
1245 | {1, 1, 0, 0}, | |
1246 | {511 - 2 - 2, -512 - 2 + 2, 0, 2 }, | |
1247 | {0x2000000 - 1 - 2, -0x2000000 - 2, 2, 0 }, | |
1248 | {0x2000000 - 1 - 2, -0x2000000 - 2, 4, 0 } | |
1249 | }; | |
1250 | ||
1251 | long | |
5a49b8ac | 1252 | frv_relax_frag (fragS *fragP ATTRIBUTE_UNUSED, long stretch ATTRIBUTE_UNUSED) |
0ebb9a87 DB |
1253 | { |
1254 | return 0; | |
1255 | } | |
1256 | ||
1257 | /* Return an initial guess of the length by which a fragment must grow to | |
1258 | hold a branch to reach its destination. | |
1259 | Also updates fr_type/fr_subtype as necessary. | |
1260 | ||
1261 | Called just before doing relaxation. | |
1262 | Any symbol that is now undefined will not become defined. | |
1263 | The guess for fr_var is ACTUALLY the growth beyond fr_fix. | |
1264 | Whatever we do to grow fr_fix or fr_var contributes to our returned value. | |
1265 | Although it may not be explicit in the frag, pretend fr_var starts with a | |
1266 | 0 value. */ | |
1267 | ||
1268 | int | |
5a49b8ac | 1269 | md_estimate_size_before_relax (fragS *fragP, segT segment ATTRIBUTE_UNUSED) |
0ebb9a87 DB |
1270 | { |
1271 | switch (fragP->fr_subtype) | |
1272 | { | |
1273 | case NOP_KEEP: | |
1274 | return fragP->fr_var; | |
1275 | ||
1276 | default: | |
1277 | case NOP_DELETE: | |
1278 | return 0; | |
1279 | } | |
1280 | } | |
1281 | ||
1282 | /* *fragP has been relaxed to its final size, and now needs to have | |
1283 | the bytes inside it modified to conform to the new size. | |
1284 | ||
1285 | Called after relaxation is finished. | |
1286 | fragP->fr_type == rs_machine_dependent. | |
1287 | fragP->fr_subtype is the subtype of what the address relaxed to. */ | |
1288 | ||
1289 | void | |
5a49b8ac AM |
1290 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, |
1291 | segT sec ATTRIBUTE_UNUSED, | |
1292 | fragS *fragP) | |
0ebb9a87 DB |
1293 | { |
1294 | switch (fragP->fr_subtype) | |
1295 | { | |
1296 | default: | |
1297 | case NOP_DELETE: | |
1298 | return; | |
1299 | ||
1300 | case NOP_KEEP: | |
1301 | fragP->fr_fix = fragP->fr_var; | |
1302 | fragP->fr_var = 0; | |
1303 | return; | |
1304 | } | |
1305 | } | |
1306 | \f | |
1307 | /* Functions concerning relocs. */ | |
1308 | ||
1309 | /* The location from which a PC relative jump should be calculated, | |
1310 | given a PC relative reloc. */ | |
1311 | ||
1312 | long | |
5a49b8ac | 1313 | md_pcrel_from_section (fixS *fixP, segT sec) |
0ebb9a87 | 1314 | { |
a939d090 AO |
1315 | if (TC_FORCE_RELOCATION (fixP) |
1316 | || (fixP->fx_addsy != (symbolS *) NULL | |
1317 | && S_GET_SEGMENT (fixP->fx_addsy) != sec)) | |
1318 | { | |
1319 | /* If we can't adjust this relocation, or if it references a | |
1320 | local symbol in a different section (which | |
1321 | TC_FORCE_RELOCATION can't check), let the linker figure it | |
1322 | out. */ | |
1323 | return 0; | |
1324 | } | |
0ebb9a87 DB |
1325 | |
1326 | return (fixP->fx_frag->fr_address + fixP->fx_where) & ~1; | |
1327 | } | |
1328 | ||
1329 | /* Return the bfd reloc type for OPERAND of INSN at fixup FIXP. | |
1330 | Returns BFD_RELOC_NONE if no reloc type can be found. | |
1331 | *FIXP may be modified if desired. */ | |
1332 | ||
1333 | bfd_reloc_code_real_type | |
5a49b8ac AM |
1334 | md_cgen_lookup_reloc (const CGEN_INSN *insn ATTRIBUTE_UNUSED, |
1335 | const CGEN_OPERAND *operand, | |
1336 | fixS *fixP) | |
0ebb9a87 DB |
1337 | { |
1338 | switch (operand->type) | |
1339 | { | |
1340 | case FRV_OPERAND_LABEL16: | |
b34976b6 | 1341 | fixP->fx_pcrel = TRUE; |
0ebb9a87 DB |
1342 | return BFD_RELOC_FRV_LABEL16; |
1343 | ||
1344 | case FRV_OPERAND_LABEL24: | |
b34976b6 | 1345 | fixP->fx_pcrel = TRUE; |
90219bd0 AO |
1346 | |
1347 | if (fixP->fx_cgen.opinfo != 0) | |
1348 | return fixP->fx_cgen.opinfo; | |
1349 | ||
0ebb9a87 DB |
1350 | return BFD_RELOC_FRV_LABEL24; |
1351 | ||
1352 | case FRV_OPERAND_UHI16: | |
1353 | case FRV_OPERAND_ULO16: | |
1354 | case FRV_OPERAND_SLO16: | |
90219bd0 AO |
1355 | case FRV_OPERAND_CALLANN: |
1356 | case FRV_OPERAND_LDANN: | |
1357 | case FRV_OPERAND_LDDANN: | |
0ebb9a87 DB |
1358 | /* The relocation type should be recorded in opinfo */ |
1359 | if (fixP->fx_cgen.opinfo != 0) | |
1360 | return fixP->fx_cgen.opinfo; | |
1361 | break; | |
1362 | ||
1363 | case FRV_OPERAND_D12: | |
1364 | case FRV_OPERAND_S12: | |
99d09cdb AO |
1365 | if (fixP->fx_cgen.opinfo != 0) |
1366 | return fixP->fx_cgen.opinfo; | |
1367 | ||
0ebb9a87 DB |
1368 | return BFD_RELOC_FRV_GPREL12; |
1369 | ||
1370 | case FRV_OPERAND_U12: | |
1371 | return BFD_RELOC_FRV_GPRELU12; | |
1372 | ||
1373 | default: | |
1374 | break; | |
1375 | } | |
1376 | return BFD_RELOC_NONE; | |
1377 | } | |
1378 | ||
1379 | ||
1380 | /* See whether we need to force a relocation into the output file. | |
1381 | This is used to force out switch and PC relative relocations when | |
1382 | relaxing. */ | |
1383 | ||
1384 | int | |
5a49b8ac | 1385 | frv_force_relocation (fixS *fix) |
0ebb9a87 | 1386 | { |
90219bd0 | 1387 | switch (fix->fx_r_type < BFD_RELOC_UNUSED |
f17c130b | 1388 | ? (int) fix->fx_r_type |
90219bd0 AO |
1389 | : fix->fx_cgen.opinfo) |
1390 | { | |
1391 | case BFD_RELOC_FRV_GPREL12: | |
1392 | case BFD_RELOC_FRV_GPRELU12: | |
1393 | case BFD_RELOC_FRV_GPREL32: | |
1394 | case BFD_RELOC_FRV_GPRELHI: | |
1395 | case BFD_RELOC_FRV_GPRELLO: | |
1396 | case BFD_RELOC_FRV_GOT12: | |
1397 | case BFD_RELOC_FRV_GOTHI: | |
1398 | case BFD_RELOC_FRV_GOTLO: | |
1399 | case BFD_RELOC_FRV_FUNCDESC_VALUE: | |
1400 | case BFD_RELOC_FRV_FUNCDESC_GOTOFF12: | |
1401 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI: | |
1402 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO: | |
1403 | case BFD_RELOC_FRV_GOTOFF12: | |
1404 | case BFD_RELOC_FRV_GOTOFFHI: | |
1405 | case BFD_RELOC_FRV_GOTOFFLO: | |
1406 | case BFD_RELOC_FRV_GETTLSOFF: | |
1407 | case BFD_RELOC_FRV_TLSDESC_VALUE: | |
1408 | case BFD_RELOC_FRV_GOTTLSDESC12: | |
1409 | case BFD_RELOC_FRV_GOTTLSDESCHI: | |
1410 | case BFD_RELOC_FRV_GOTTLSDESCLO: | |
1411 | case BFD_RELOC_FRV_TLSMOFF12: | |
1412 | case BFD_RELOC_FRV_TLSMOFFHI: | |
1413 | case BFD_RELOC_FRV_TLSMOFFLO: | |
1414 | case BFD_RELOC_FRV_GOTTLSOFF12: | |
1415 | case BFD_RELOC_FRV_GOTTLSOFFHI: | |
1416 | case BFD_RELOC_FRV_GOTTLSOFFLO: | |
1417 | case BFD_RELOC_FRV_TLSOFF: | |
1418 | case BFD_RELOC_FRV_TLSDESC_RELAX: | |
1419 | case BFD_RELOC_FRV_GETTLSOFF_RELAX: | |
1420 | case BFD_RELOC_FRV_TLSOFF_RELAX: | |
1421 | return 1; | |
1422 | ||
1423 | default: | |
1424 | break; | |
1425 | } | |
0ebb9a87 | 1426 | |
ae6063d4 | 1427 | return generic_force_reloc (fix); |
0ebb9a87 | 1428 | } |
99d09cdb AO |
1429 | |
1430 | /* Apply a fixup that could be resolved within the assembler. */ | |
1431 | ||
1432 | void | |
5a49b8ac | 1433 | md_apply_fix (fixS *fixP, valueT *valP, segT seg) |
99d09cdb AO |
1434 | { |
1435 | if (fixP->fx_addsy == 0) | |
1436 | switch (fixP->fx_cgen.opinfo) | |
1437 | { | |
1438 | case BFD_RELOC_FRV_HI16: | |
1439 | *valP >>= 16; | |
1440 | /* Fall through. */ | |
1441 | case BFD_RELOC_FRV_LO16: | |
1442 | *valP &= 0xffff; | |
1443 | break; | |
90219bd0 AO |
1444 | |
1445 | /* We need relocations for these, even if their symbols reduce | |
1446 | to constants. */ | |
1447 | case BFD_RELOC_FRV_GPREL12: | |
1448 | case BFD_RELOC_FRV_GPRELU12: | |
1449 | case BFD_RELOC_FRV_GPREL32: | |
1450 | case BFD_RELOC_FRV_GPRELHI: | |
1451 | case BFD_RELOC_FRV_GPRELLO: | |
1452 | case BFD_RELOC_FRV_GOT12: | |
1453 | case BFD_RELOC_FRV_GOTHI: | |
1454 | case BFD_RELOC_FRV_GOTLO: | |
1455 | case BFD_RELOC_FRV_FUNCDESC_VALUE: | |
1456 | case BFD_RELOC_FRV_FUNCDESC_GOTOFF12: | |
1457 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI: | |
1458 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO: | |
1459 | case BFD_RELOC_FRV_GOTOFF12: | |
1460 | case BFD_RELOC_FRV_GOTOFFHI: | |
1461 | case BFD_RELOC_FRV_GOTOFFLO: | |
1462 | case BFD_RELOC_FRV_GETTLSOFF: | |
1463 | case BFD_RELOC_FRV_TLSDESC_VALUE: | |
1464 | case BFD_RELOC_FRV_GOTTLSDESC12: | |
1465 | case BFD_RELOC_FRV_GOTTLSDESCHI: | |
1466 | case BFD_RELOC_FRV_GOTTLSDESCLO: | |
1467 | case BFD_RELOC_FRV_TLSMOFF12: | |
1468 | case BFD_RELOC_FRV_TLSMOFFHI: | |
1469 | case BFD_RELOC_FRV_TLSMOFFLO: | |
1470 | case BFD_RELOC_FRV_GOTTLSOFF12: | |
1471 | case BFD_RELOC_FRV_GOTTLSOFFHI: | |
1472 | case BFD_RELOC_FRV_GOTTLSOFFLO: | |
1473 | case BFD_RELOC_FRV_TLSOFF: | |
1474 | case BFD_RELOC_FRV_TLSDESC_RELAX: | |
1475 | case BFD_RELOC_FRV_GETTLSOFF_RELAX: | |
1476 | case BFD_RELOC_FRV_TLSOFF_RELAX: | |
455bde50 | 1477 | fixP->fx_addsy = abs_section_sym; |
90219bd0 AO |
1478 | break; |
1479 | } | |
1480 | else | |
1481 | switch (fixP->fx_cgen.opinfo) | |
1482 | { | |
1483 | case BFD_RELOC_FRV_GETTLSOFF: | |
1484 | case BFD_RELOC_FRV_TLSDESC_VALUE: | |
1485 | case BFD_RELOC_FRV_GOTTLSDESC12: | |
1486 | case BFD_RELOC_FRV_GOTTLSDESCHI: | |
1487 | case BFD_RELOC_FRV_GOTTLSDESCLO: | |
1488 | case BFD_RELOC_FRV_TLSMOFF12: | |
1489 | case BFD_RELOC_FRV_TLSMOFFHI: | |
1490 | case BFD_RELOC_FRV_TLSMOFFLO: | |
1491 | case BFD_RELOC_FRV_GOTTLSOFF12: | |
1492 | case BFD_RELOC_FRV_GOTTLSOFFHI: | |
1493 | case BFD_RELOC_FRV_GOTTLSOFFLO: | |
1494 | case BFD_RELOC_FRV_TLSOFF: | |
1495 | case BFD_RELOC_FRV_TLSDESC_RELAX: | |
1496 | case BFD_RELOC_FRV_GETTLSOFF_RELAX: | |
1497 | case BFD_RELOC_FRV_TLSOFF_RELAX: | |
1498 | /* Mark TLS symbols as such. */ | |
1499 | if (S_GET_SEGMENT (fixP->fx_addsy) != absolute_section) | |
1500 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
1501 | break; | |
99d09cdb AO |
1502 | } |
1503 | ||
55cf6793 | 1504 | gas_cgen_md_apply_fix (fixP, valP, seg); |
99d09cdb AO |
1505 | return; |
1506 | } | |
1507 | ||
0ebb9a87 DB |
1508 | \f |
1509 | /* Write a value out to the object file, using the appropriate endianness. */ | |
1510 | ||
1511 | void | |
5a49b8ac | 1512 | frv_md_number_to_chars (char *buf, valueT val, int n) |
0ebb9a87 DB |
1513 | { |
1514 | number_to_chars_bigendian (buf, val, n); | |
1515 | } | |
1516 | ||
0ebb9a87 | 1517 | char * |
5a49b8ac | 1518 | md_atof (int type, char *litP, int *sizeP) |
0ebb9a87 | 1519 | { |
499ac353 | 1520 | return ieee_md_atof (type, litP, sizeP, TRUE); |
0ebb9a87 DB |
1521 | } |
1522 | ||
b34976b6 | 1523 | bfd_boolean |
5a49b8ac | 1524 | frv_fix_adjustable (fixS *fixP) |
0ebb9a87 DB |
1525 | { |
1526 | bfd_reloc_code_real_type reloc_type; | |
1527 | ||
1528 | if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED) | |
1529 | { | |
1530 | const CGEN_INSN *insn = NULL; | |
1531 | int opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED; | |
1532 | const CGEN_OPERAND *operand = cgen_operand_lookup_by_num(gas_cgen_cpu_desc, opindex); | |
1533 | reloc_type = md_cgen_lookup_reloc (insn, operand, fixP); | |
1534 | } | |
1535 | else | |
1536 | reloc_type = fixP->fx_r_type; | |
1537 | ||
0ebb9a87 DB |
1538 | /* We need the symbol name for the VTABLE entries */ |
1539 | if ( reloc_type == BFD_RELOC_VTABLE_INHERIT | |
1540 | || reloc_type == BFD_RELOC_VTABLE_ENTRY | |
1541 | || reloc_type == BFD_RELOC_FRV_GPREL12 | |
1542 | || reloc_type == BFD_RELOC_FRV_GPRELU12) | |
1543 | return 0; | |
1544 | ||
1545 | return 1; | |
1546 | } | |
1547 | ||
1548 | /* Allow user to set flags bits. */ | |
1549 | void | |
5a49b8ac | 1550 | frv_set_flags (int arg ATTRIBUTE_UNUSED) |
0ebb9a87 DB |
1551 | { |
1552 | flagword new_flags = get_absolute_expression (); | |
1553 | flagword new_mask = ~ (flagword)0; | |
1554 | ||
1555 | frv_user_set_flags_p = 1; | |
1556 | if (*input_line_pointer == ',') | |
1557 | { | |
1558 | ++input_line_pointer; | |
1559 | new_mask = get_absolute_expression (); | |
1560 | } | |
1561 | ||
1562 | frv_flags = (frv_flags & ~new_mask) | (new_flags & new_mask); | |
1563 | bfd_set_private_flags (stdoutput, frv_flags); | |
1564 | } | |
1565 | ||
1566 | /* Frv specific function to handle 4 byte initializations for pointers that are | |
1567 | considered 'safe' for use with pic support. Until frv_frob_file{,_section} | |
1568 | is run, we encode it a BFD_RELOC_CTOR, and it is turned back into a normal | |
1569 | BFD_RELOC_32 at that time. */ | |
1570 | ||
1571 | void | |
5a49b8ac | 1572 | frv_pic_ptr (int nbytes) |
0ebb9a87 DB |
1573 | { |
1574 | expressionS exp; | |
1575 | char *p; | |
1576 | ||
1577 | if (nbytes != 4) | |
1578 | abort (); | |
1579 | ||
1580 | #ifdef md_flush_pending_output | |
1581 | md_flush_pending_output (); | |
1582 | #endif | |
1583 | ||
1584 | if (is_it_end_of_statement ()) | |
1585 | { | |
1586 | demand_empty_rest_of_line (); | |
1587 | return; | |
1588 | } | |
1589 | ||
1590 | #ifdef md_cons_align | |
1591 | md_cons_align (nbytes); | |
1592 | #endif | |
1593 | ||
1594 | do | |
1595 | { | |
99d09cdb AO |
1596 | bfd_reloc_code_real_type reloc_type = BFD_RELOC_CTOR; |
1597 | ||
1598 | if (strncasecmp (input_line_pointer, "funcdesc(", 9) == 0) | |
1599 | { | |
1600 | input_line_pointer += 9; | |
1601 | expression (&exp); | |
1602 | if (*input_line_pointer == ')') | |
1603 | input_line_pointer++; | |
1604 | else | |
bd3ba5d1 | 1605 | as_bad (_("missing ')'")); |
99d09cdb AO |
1606 | reloc_type = BFD_RELOC_FRV_FUNCDESC; |
1607 | } | |
90219bd0 AO |
1608 | else if (strncasecmp (input_line_pointer, "tlsmoff(", 8) == 0) |
1609 | { | |
1610 | input_line_pointer += 8; | |
1611 | expression (&exp); | |
1612 | if (*input_line_pointer == ')') | |
1613 | input_line_pointer++; | |
1614 | else | |
bd3ba5d1 | 1615 | as_bad (_("missing ')'")); |
90219bd0 AO |
1616 | reloc_type = BFD_RELOC_FRV_TLSMOFF; |
1617 | } | |
99d09cdb AO |
1618 | else |
1619 | expression (&exp); | |
0ebb9a87 DB |
1620 | |
1621 | p = frag_more (4); | |
1622 | memset (p, 0, 4); | |
1623 | fix_new_exp (frag_now, p - frag_now->fr_literal, 4, &exp, 0, | |
99d09cdb | 1624 | reloc_type); |
0ebb9a87 DB |
1625 | } |
1626 | while (*input_line_pointer++ == ','); | |
1627 | ||
1628 | input_line_pointer--; /* Put terminator back into stream. */ | |
1629 | demand_empty_rest_of_line (); | |
1630 | } | |
1631 | ||
1632 | \f | |
1633 | ||
1634 | #ifdef DEBUG | |
1635 | #define DPRINTF1(A) fprintf (stderr, A) | |
1636 | #define DPRINTF2(A,B) fprintf (stderr, A, B) | |
1637 | #define DPRINTF3(A,B,C) fprintf (stderr, A, B, C) | |
1638 | ||
1639 | #else | |
1640 | #define DPRINTF1(A) | |
1641 | #define DPRINTF2(A,B) | |
1642 | #define DPRINTF3(A,B,C) | |
1643 | #endif | |
1644 | ||
1645 | /* Go through a the sections looking for relocations that are problematical for | |
1646 | pic. If not pic, just note that this object can't be linked with pic. If | |
1647 | it is pic, see if it needs to be marked so that it will be fixed up, or if | |
1648 | not possible, issue an error. */ | |
1649 | ||
1650 | static void | |
5a49b8ac | 1651 | frv_frob_file_section (bfd *abfd, asection *sec, void *ptr ATTRIBUTE_UNUSED) |
0ebb9a87 DB |
1652 | { |
1653 | segment_info_type *seginfo = seg_info (sec); | |
1654 | fixS *fixp; | |
1655 | CGEN_CPU_DESC cd = gas_cgen_cpu_desc; | |
1656 | flagword flags = bfd_get_section_flags (abfd, sec); | |
1657 | ||
1658 | /* Skip relocations in known sections (.ctors, .dtors, and .gcc_except_table) | |
1659 | since we can fix those up by hand. */ | |
1660 | int known_section_p = (sec->name | |
1661 | && sec->name[0] == '.' | |
1662 | && ((sec->name[1] == 'c' | |
1663 | && strcmp (sec->name, ".ctor") == 0) | |
1664 | || (sec->name[1] == 'd' | |
1665 | && strcmp (sec->name, ".dtor") == 0) | |
1666 | || (sec->name[1] == 'g' | |
1667 | && strcmp (sec->name, ".gcc_except_table") == 0))); | |
1668 | ||
1669 | DPRINTF3 ("\nFrv section %s%s\n", sec->name, (known_section_p) ? ", known section" : ""); | |
1670 | if ((flags & SEC_ALLOC) == 0) | |
1671 | { | |
1672 | DPRINTF1 ("\tSkipping non-loaded section\n"); | |
1673 | return; | |
1674 | } | |
1675 | ||
1676 | for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next) | |
1677 | { | |
1678 | symbolS *s = fixp->fx_addsy; | |
1679 | bfd_reloc_code_real_type reloc; | |
1680 | int non_pic_p; | |
1681 | int opindex; | |
1682 | const CGEN_OPERAND *operand; | |
1683 | const CGEN_INSN *insn = fixp->fx_cgen.insn; | |
1684 | ||
1685 | if (fixp->fx_done) | |
1686 | { | |
1687 | DPRINTF1 ("\tSkipping reloc that has already been done\n"); | |
1688 | continue; | |
1689 | } | |
1690 | ||
1691 | if (fixp->fx_pcrel) | |
1692 | { | |
1693 | DPRINTF1 ("\tSkipping reloc that is PC relative\n"); | |
1694 | continue; | |
1695 | } | |
1696 | ||
1697 | if (! s) | |
1698 | { | |
1699 | DPRINTF1 ("\tSkipping reloc without symbol\n"); | |
1700 | continue; | |
1701 | } | |
1702 | ||
1703 | if (fixp->fx_r_type < BFD_RELOC_UNUSED) | |
1704 | { | |
1705 | opindex = -1; | |
1706 | reloc = fixp->fx_r_type; | |
1707 | } | |
1708 | else | |
1709 | { | |
1710 | opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED; | |
1711 | operand = cgen_operand_lookup_by_num (cd, opindex); | |
1712 | reloc = md_cgen_lookup_reloc (insn, operand, fixp); | |
1713 | } | |
1714 | ||
1715 | DPRINTF3 ("\treloc %s\t%s", bfd_get_reloc_code_name (reloc), S_GET_NAME (s)); | |
1716 | ||
1717 | non_pic_p = 0; | |
1718 | switch (reloc) | |
1719 | { | |
1720 | default: | |
1721 | break; | |
1722 | ||
1723 | case BFD_RELOC_32: | |
1724 | /* Skip relocations in known sections (.ctors, .dtors, and | |
1725 | .gcc_except_table) since we can fix those up by hand. Also | |
1726 | skip forward references to constants. Also skip a difference | |
1727 | of two symbols, which still uses the BFD_RELOC_32 at this | |
1728 | point. */ | |
1729 | if (! known_section_p | |
1730 | && S_GET_SEGMENT (s) != absolute_section | |
1731 | && !fixp->fx_subsy | |
1732 | && (flags & (SEC_READONLY | SEC_CODE)) == 0) | |
1733 | { | |
1734 | non_pic_p = 1; | |
1735 | } | |
1736 | break; | |
1737 | ||
1738 | /* FIXME -- should determine if any of the GP relocation really uses | |
1739 | gr16 (which is not pic safe) or not. Right now, assume if we | |
1740 | aren't being compiled with -mpic, the usage is non pic safe, but | |
1741 | is safe with -mpic. */ | |
1742 | case BFD_RELOC_FRV_GPREL12: | |
1743 | case BFD_RELOC_FRV_GPRELU12: | |
1744 | case BFD_RELOC_FRV_GPREL32: | |
1745 | case BFD_RELOC_FRV_GPRELHI: | |
1746 | case BFD_RELOC_FRV_GPRELLO: | |
1747 | non_pic_p = ! frv_pic_p; | |
1748 | break; | |
1749 | ||
1750 | case BFD_RELOC_FRV_LO16: | |
1751 | case BFD_RELOC_FRV_HI16: | |
1752 | if (S_GET_SEGMENT (s) != absolute_section) | |
1753 | non_pic_p = 1; | |
1754 | break; | |
1755 | ||
1756 | case BFD_RELOC_VTABLE_INHERIT: | |
1757 | case BFD_RELOC_VTABLE_ENTRY: | |
1758 | non_pic_p = 1; | |
1759 | break; | |
1760 | ||
1761 | /* If this is a blessed BFD_RELOC_32, convert it back to the normal | |
1762 | relocation. */ | |
1763 | case BFD_RELOC_CTOR: | |
1764 | fixp->fx_r_type = BFD_RELOC_32; | |
1765 | break; | |
1766 | } | |
1767 | ||
1768 | if (non_pic_p) | |
1769 | { | |
1770 | DPRINTF1 (" (Non-pic relocation)\n"); | |
1771 | if (frv_pic_p) | |
1772 | as_warn_where (fixp->fx_file, fixp->fx_line, | |
1773 | _("Relocation %s is not safe for %s"), | |
1774 | bfd_get_reloc_code_name (reloc), frv_pic_flag); | |
1775 | ||
1776 | else if ((frv_flags & EF_FRV_NON_PIC_RELOCS) == 0) | |
1777 | { | |
1778 | frv_flags |= EF_FRV_NON_PIC_RELOCS; | |
1779 | bfd_set_private_flags (abfd, frv_flags); | |
1780 | } | |
1781 | } | |
1782 | #ifdef DEBUG | |
1783 | else | |
1784 | DPRINTF1 ("\n"); | |
1785 | #endif | |
1786 | } | |
1787 | } | |
1788 | ||
1789 | /* After all of the symbols have been adjusted, go over the file looking | |
1790 | for any relocations that pic won't support. */ | |
1791 | ||
1792 | void | |
5a49b8ac | 1793 | frv_frob_file (void) |
0ebb9a87 | 1794 | { |
5a49b8ac | 1795 | bfd_map_over_sections (stdoutput, frv_frob_file_section, (void *) 0); |
0ebb9a87 DB |
1796 | } |
1797 | ||
1798 | void | |
5a49b8ac | 1799 | frv_frob_label (symbolS *this_label) |
0ebb9a87 DB |
1800 | { |
1801 | struct vliw_insn_list *vliw_insn_list_entry; | |
1802 | ||
f2e25d93 | 1803 | dwarf2_emit_label (this_label); |
0ebb9a87 DB |
1804 | if (frv_mach != bfd_mach_frvtomcat) |
1805 | return; | |
1806 | ||
1807 | if (now_seg != text_section) | |
1808 | return; | |
1809 | ||
1810 | vliw_insn_list_entry = frv_insert_vliw_insn(DONT_COUNT); | |
1811 | vliw_insn_list_entry->type = VLIW_LABEL_TYPE; | |
1812 | vliw_insn_list_entry->sym = this_label; | |
1813 | } | |
1814 | ||
1815 | fixS * | |
5a49b8ac AM |
1816 | frv_cgen_record_fixup_exp (fragS *frag, |
1817 | int where, | |
1818 | const CGEN_INSN *insn, | |
1819 | int length, | |
1820 | const CGEN_OPERAND *operand, | |
1821 | int opinfo, | |
1822 | expressionS *exp) | |
0ebb9a87 DB |
1823 | { |
1824 | fixS * fixP = gas_cgen_record_fixup_exp (frag, where, insn, length, | |
1825 | operand, opinfo, exp); | |
1826 | ||
1827 | if (frv_mach == bfd_mach_frvtomcat | |
1828 | && current_vliw_insn | |
1829 | && current_vliw_insn->type == VLIW_BRANCH_TYPE | |
1830 | && exp != NULL) | |
1831 | current_vliw_insn->sym = exp->X_add_symbol; | |
1832 | ||
1833 | return fixP; | |
1834 | } |