Commit | Line | Data |
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0ebb9a87 | 1 | /* tc-frv.c -- Assembler for the Fujitsu FRV. |
219d1afa | 2 | Copyright (C) 2002-2018 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" |
3739860c | 22 | #include "subsegs.h" |
0ebb9a87 DB |
23 | #include "symcat.h" |
24 | #include "opcodes/frv-desc.h" | |
25 | #include "opcodes/frv-opc.h" | |
26 | #include "cgen.h" | |
0ebb9a87 DB |
27 | #include "elf/common.h" |
28 | #include "elf/frv.h" | |
f2e25d93 | 29 | #include "dwarf2dbg.h" |
0ebb9a87 DB |
30 | |
31 | /* Structure to hold all of the different components describing | |
32 | an individual instruction. */ | |
33 | typedef struct | |
34 | { | |
35 | const CGEN_INSN * insn; | |
36 | const CGEN_INSN * orig_insn; | |
37 | CGEN_FIELDS fields; | |
38 | #if CGEN_INT_INSN_P | |
39 | CGEN_INSN_INT buffer [1]; | |
40 | #define INSN_VALUE(buf) (*(buf)) | |
41 | #else | |
42 | unsigned char buffer [CGEN_MAX_INSN_SIZE]; | |
43 | #define INSN_VALUE(buf) (buf) | |
44 | #endif | |
45 | char * addr; | |
46 | fragS * frag; | |
47 | int num_fixups; | |
48 | fixS * fixups [GAS_CGEN_MAX_FIXUPS]; | |
49 | int indices [MAX_OPERAND_INSTANCES]; | |
50 | } | |
51 | frv_insn; | |
52 | ||
53 | enum vliw_insn_type | |
54 | { | |
55 | VLIW_GENERIC_TYPE, /* Don't care about this insn. */ | |
56 | VLIW_BRANCH_TYPE, /* A Branch. */ | |
57 | VLIW_LABEL_TYPE, /* A Label. */ | |
58 | VLIW_NOP_TYPE, /* A NOP. */ | |
59 | VLIW_BRANCH_HAS_NOPS /* A Branch that requires NOPS. */ | |
60 | }; | |
61 | ||
3739860c | 62 | /* We're going to use these in the fr_subtype field to mark |
0ebb9a87 DB |
63 | whether to keep inserted nops. */ |
64 | ||
65 | #define NOP_KEEP 1 /* Keep these NOPS. */ | |
66 | #define NOP_DELETE 2 /* Delete these NOPS. */ | |
67 | ||
b34976b6 AM |
68 | #define DO_COUNT TRUE |
69 | #define DONT_COUNT FALSE | |
0ebb9a87 DB |
70 | |
71 | /* A list of insns within a VLIW insn. */ | |
72 | struct vliw_insn_list | |
73 | { | |
74 | /* The type of this insn. */ | |
75 | enum vliw_insn_type type; | |
76 | ||
77 | /* The corresponding gas insn information. */ | |
78 | const CGEN_INSN *insn; | |
79 | ||
80 | /* For branches and labels, the symbol that is referenced. */ | |
81 | symbolS *sym; | |
82 | ||
83 | /* For branches, the frag containing the single nop that was generated. */ | |
84 | fragS *snop_frag; | |
85 | ||
86 | /* For branches, the frag containing the double nop that was generated. */ | |
87 | fragS *dnop_frag; | |
88 | ||
89 | /* Pointer to raw data for this insn. */ | |
90 | char *address; | |
91 | ||
92 | /* Next insn in list. */ | |
93 | struct vliw_insn_list *next; | |
94 | }; | |
95 | ||
96 | static struct vliw_insn_list single_nop_insn = { | |
97 | VLIW_NOP_TYPE, NULL, NULL, NULL, NULL, NULL, NULL }; | |
98 | ||
99 | static struct vliw_insn_list double_nop_insn = { | |
100 | VLIW_NOP_TYPE, NULL, NULL, NULL, NULL, NULL, NULL }; | |
101 | ||
102 | struct vliw_chain | |
103 | { | |
104 | int num; | |
105 | int insn_count; | |
106 | struct vliw_insn_list *insn_list; | |
107 | struct vliw_chain *next; | |
108 | }; | |
109 | ||
110 | static struct vliw_chain *vliw_chain_top; | |
111 | static struct vliw_chain *current_vliw_chain; | |
112 | static struct vliw_chain *previous_vliw_chain; | |
113 | static struct vliw_insn_list *current_vliw_insn; | |
114 | ||
115 | const char comment_chars[] = ";"; | |
116 | const char line_comment_chars[] = "#"; | |
3739860c | 117 | const char line_separator_chars[] = "!"; |
0ebb9a87 DB |
118 | const char EXP_CHARS[] = "eE"; |
119 | const char FLT_CHARS[] = "dD"; | |
120 | ||
121 | static FRV_VLIW vliw; | |
122 | ||
123 | /* Default machine */ | |
124 | ||
125 | #ifdef DEFAULT_CPU_FRV | |
126 | #define DEFAULT_MACHINE bfd_mach_frv | |
127 | #define DEFAULT_FLAGS EF_FRV_CPU_GENERIC | |
128 | ||
129 | #else | |
130 | #ifdef DEFAULT_CPU_FR300 | |
131 | #define DEFAULT_MACHINE bfd_mach_fr300 | |
132 | #define DEFAULT_FLAGS EF_FRV_CPU_FR300 | |
133 | ||
134 | #else | |
135 | #ifdef DEFAULT_CPU_SIMPLE | |
136 | #define DEFAULT_MACHINE bfd_mach_frvsimple | |
137 | #define DEFAULT_FLAGS EF_FRV_CPU_SIMPLE | |
138 | ||
139 | #else | |
140 | #ifdef DEFAULT_CPU_TOMCAT | |
141 | #define DEFAULT_MACHINE bfd_mach_frvtomcat | |
142 | #define DEFAULT_FLAGS EF_FRV_CPU_TOMCAT | |
143 | ||
144 | #else | |
145 | #ifdef DEFAULT_CPU_FR400 | |
146 | #define DEFAULT_MACHINE bfd_mach_fr400 | |
147 | #define DEFAULT_FLAGS EF_FRV_CPU_FR400 | |
148 | ||
1ae31fee DB |
149 | #else |
150 | #ifdef DEFAULT_CPU_FR550 | |
151 | #define DEFAULT_MACHINE bfd_mach_fr550 | |
152 | #define DEFAULT_FLAGS EF_FRV_CPU_FR550 | |
153 | ||
0ebb9a87 DB |
154 | #else |
155 | #define DEFAULT_MACHINE bfd_mach_fr500 | |
156 | #define DEFAULT_FLAGS EF_FRV_CPU_FR500 | |
157 | #endif | |
158 | #endif | |
159 | #endif | |
160 | #endif | |
161 | #endif | |
1ae31fee | 162 | #endif |
0ebb9a87 | 163 | |
996991aa AO |
164 | #ifdef TE_LINUX |
165 | # define DEFAULT_FDPIC EF_FRV_FDPIC | |
166 | #else | |
167 | # define DEFAULT_FDPIC 0 | |
168 | #endif | |
169 | ||
0ebb9a87 | 170 | static unsigned long frv_mach = bfd_mach_frv; |
676a64f4 | 171 | static bfd_boolean fr400_audio; |
0ebb9a87 DB |
172 | |
173 | /* Flags to set in the elf header */ | |
996991aa | 174 | static flagword frv_flags = DEFAULT_FLAGS | DEFAULT_FDPIC; |
0ebb9a87 DB |
175 | |
176 | static int frv_user_set_flags_p = 0; | |
177 | static int frv_pic_p = 0; | |
996991aa | 178 | static const char *frv_pic_flag = DEFAULT_FDPIC ? "-mfdpic" : (const char *)0; |
0ebb9a87 DB |
179 | |
180 | /* Print tomcat-specific debugging info. */ | |
181 | static int tomcat_debug = 0; | |
182 | ||
183 | /* Tomcat-specific NOP statistics. */ | |
184 | static int tomcat_stats = 0; | |
185 | static int tomcat_doubles = 0; | |
186 | static int tomcat_singles = 0; | |
187 | ||
188 | /* Forward reference to static functions */ | |
5a49b8ac AM |
189 | static void frv_set_flags (int); |
190 | static void frv_pic_ptr (int); | |
0ebb9a87 DB |
191 | |
192 | /* The target specific pseudo-ops which we support. */ | |
193 | const pseudo_typeS md_pseudo_table[] = | |
194 | { | |
195 | { "eflags", frv_set_flags, 0 }, | |
196 | { "word", cons, 4 }, | |
197 | { "picptr", frv_pic_ptr, 4 }, | |
0ebb9a87 DB |
198 | { NULL, NULL, 0 } |
199 | }; | |
200 | ||
201 | \f | |
202 | #define FRV_SHORTOPTS "G:" | |
203 | const char * md_shortopts = FRV_SHORTOPTS; | |
204 | ||
205 | #define OPTION_GPR_32 (OPTION_MD_BASE) | |
206 | #define OPTION_GPR_64 (OPTION_MD_BASE + 1) | |
207 | #define OPTION_FPR_32 (OPTION_MD_BASE + 2) | |
208 | #define OPTION_FPR_64 (OPTION_MD_BASE + 3) | |
209 | #define OPTION_SOFT_FLOAT (OPTION_MD_BASE + 4) | |
210 | #define OPTION_DWORD_YES (OPTION_MD_BASE + 5) | |
211 | #define OPTION_DWORD_NO (OPTION_MD_BASE + 6) | |
212 | #define OPTION_DOUBLE (OPTION_MD_BASE + 7) | |
213 | #define OPTION_NO_DOUBLE (OPTION_MD_BASE + 8) | |
214 | #define OPTION_MEDIA (OPTION_MD_BASE + 9) | |
215 | #define OPTION_NO_MEDIA (OPTION_MD_BASE + 10) | |
216 | #define OPTION_CPU (OPTION_MD_BASE + 11) | |
217 | #define OPTION_PIC (OPTION_MD_BASE + 12) | |
218 | #define OPTION_BIGPIC (OPTION_MD_BASE + 13) | |
219 | #define OPTION_LIBPIC (OPTION_MD_BASE + 14) | |
220 | #define OPTION_MULADD (OPTION_MD_BASE + 15) | |
221 | #define OPTION_NO_MULADD (OPTION_MD_BASE + 16) | |
222 | #define OPTION_TOMCAT_DEBUG (OPTION_MD_BASE + 17) | |
223 | #define OPTION_TOMCAT_STATS (OPTION_MD_BASE + 18) | |
224 | #define OPTION_PACK (OPTION_MD_BASE + 19) | |
225 | #define OPTION_NO_PACK (OPTION_MD_BASE + 20) | |
99d09cdb | 226 | #define OPTION_FDPIC (OPTION_MD_BASE + 21) |
996991aa | 227 | #define OPTION_NOPIC (OPTION_MD_BASE + 22) |
0ebb9a87 DB |
228 | |
229 | struct option md_longopts[] = | |
230 | { | |
231 | { "mgpr-32", no_argument, NULL, OPTION_GPR_32 }, | |
232 | { "mgpr-64", no_argument, NULL, OPTION_GPR_64 }, | |
233 | { "mfpr-32", no_argument, NULL, OPTION_FPR_32 }, | |
234 | { "mfpr-64", no_argument, NULL, OPTION_FPR_64 }, | |
235 | { "mhard-float", no_argument, NULL, OPTION_FPR_64 }, | |
236 | { "msoft-float", no_argument, NULL, OPTION_SOFT_FLOAT }, | |
237 | { "mdword", no_argument, NULL, OPTION_DWORD_YES }, | |
238 | { "mno-dword", no_argument, NULL, OPTION_DWORD_NO }, | |
239 | { "mdouble", no_argument, NULL, OPTION_DOUBLE }, | |
240 | { "mno-double", no_argument, NULL, OPTION_NO_DOUBLE }, | |
241 | { "mmedia", no_argument, NULL, OPTION_MEDIA }, | |
242 | { "mno-media", no_argument, NULL, OPTION_NO_MEDIA }, | |
243 | { "mcpu", required_argument, NULL, OPTION_CPU }, | |
244 | { "mpic", no_argument, NULL, OPTION_PIC }, | |
245 | { "mPIC", no_argument, NULL, OPTION_BIGPIC }, | |
246 | { "mlibrary-pic", no_argument, NULL, OPTION_LIBPIC }, | |
247 | { "mmuladd", no_argument, NULL, OPTION_MULADD }, | |
248 | { "mno-muladd", no_argument, NULL, OPTION_NO_MULADD }, | |
249 | { "mtomcat-debug", no_argument, NULL, OPTION_TOMCAT_DEBUG }, | |
250 | { "mtomcat-stats", no_argument, NULL, OPTION_TOMCAT_STATS }, | |
251 | { "mpack", no_argument, NULL, OPTION_PACK }, | |
252 | { "mno-pack", no_argument, NULL, OPTION_NO_PACK }, | |
99d09cdb | 253 | { "mfdpic", no_argument, NULL, OPTION_FDPIC }, |
996991aa | 254 | { "mnopic", no_argument, NULL, OPTION_NOPIC }, |
0ebb9a87 DB |
255 | { NULL, no_argument, NULL, 0 }, |
256 | }; | |
257 | ||
258 | size_t md_longopts_size = sizeof (md_longopts); | |
259 | ||
260 | /* What value to give to bfd_set_gp_size. */ | |
261 | static int g_switch_value = 8; | |
262 | ||
263 | int | |
17b9d67d | 264 | md_parse_option (int c, const char *arg) |
0ebb9a87 DB |
265 | { |
266 | switch (c) | |
267 | { | |
268 | default: | |
269 | return 0; | |
270 | ||
271 | case 'G': | |
272 | g_switch_value = atoi (arg); | |
273 | if (! g_switch_value) | |
274 | frv_flags |= EF_FRV_G0; | |
275 | break; | |
276 | ||
277 | case OPTION_GPR_32: | |
278 | frv_flags = (frv_flags & ~EF_FRV_GPR_MASK) | EF_FRV_GPR_32; | |
279 | break; | |
280 | ||
281 | case OPTION_GPR_64: | |
282 | frv_flags = (frv_flags & ~EF_FRV_GPR_MASK) | EF_FRV_GPR_64; | |
283 | break; | |
284 | ||
285 | case OPTION_FPR_32: | |
286 | frv_flags = (frv_flags & ~EF_FRV_FPR_MASK) | EF_FRV_FPR_32; | |
287 | break; | |
288 | ||
289 | case OPTION_FPR_64: | |
290 | frv_flags = (frv_flags & ~EF_FRV_FPR_MASK) | EF_FRV_FPR_64; | |
291 | break; | |
292 | ||
293 | case OPTION_SOFT_FLOAT: | |
294 | frv_flags = (frv_flags & ~EF_FRV_FPR_MASK) | EF_FRV_FPR_NONE; | |
295 | break; | |
296 | ||
297 | case OPTION_DWORD_YES: | |
298 | frv_flags = (frv_flags & ~EF_FRV_DWORD_MASK) | EF_FRV_DWORD_YES; | |
299 | break; | |
300 | ||
301 | case OPTION_DWORD_NO: | |
302 | frv_flags = (frv_flags & ~EF_FRV_DWORD_MASK) | EF_FRV_DWORD_NO; | |
303 | break; | |
304 | ||
305 | case OPTION_DOUBLE: | |
306 | frv_flags |= EF_FRV_DOUBLE; | |
307 | break; | |
308 | ||
309 | case OPTION_NO_DOUBLE: | |
310 | frv_flags &= ~EF_FRV_DOUBLE; | |
311 | break; | |
312 | ||
313 | case OPTION_MEDIA: | |
314 | frv_flags |= EF_FRV_MEDIA; | |
315 | break; | |
316 | ||
317 | case OPTION_NO_MEDIA: | |
318 | frv_flags &= ~EF_FRV_MEDIA; | |
319 | break; | |
320 | ||
321 | case OPTION_MULADD: | |
322 | frv_flags |= EF_FRV_MULADD; | |
323 | break; | |
324 | ||
325 | case OPTION_NO_MULADD: | |
326 | frv_flags &= ~EF_FRV_MULADD; | |
327 | break; | |
328 | ||
329 | case OPTION_PACK: | |
330 | frv_flags &= ~EF_FRV_NOPACK; | |
331 | break; | |
332 | ||
333 | case OPTION_NO_PACK: | |
334 | frv_flags |= EF_FRV_NOPACK; | |
335 | break; | |
336 | ||
337 | case OPTION_CPU: | |
338 | { | |
17b9d67d | 339 | const char *p; |
0ebb9a87 DB |
340 | int cpu_flags = EF_FRV_CPU_GENERIC; |
341 | ||
342 | /* Identify the processor type */ | |
343 | p = arg; | |
344 | if (strcmp (p, "frv") == 0) | |
345 | { | |
346 | cpu_flags = EF_FRV_CPU_GENERIC; | |
347 | frv_mach = bfd_mach_frv; | |
348 | } | |
349 | ||
350 | else if (strcmp (p, "fr500") == 0) | |
351 | { | |
352 | cpu_flags = EF_FRV_CPU_FR500; | |
353 | frv_mach = bfd_mach_fr500; | |
354 | } | |
355 | ||
1ae31fee DB |
356 | else if (strcmp (p, "fr550") == 0) |
357 | { | |
358 | cpu_flags = EF_FRV_CPU_FR550; | |
359 | frv_mach = bfd_mach_fr550; | |
360 | } | |
361 | ||
676a64f4 RS |
362 | else if (strcmp (p, "fr450") == 0) |
363 | { | |
364 | cpu_flags = EF_FRV_CPU_FR450; | |
365 | frv_mach = bfd_mach_fr450; | |
366 | } | |
367 | ||
368 | else if (strcmp (p, "fr405") == 0) | |
369 | { | |
370 | cpu_flags = EF_FRV_CPU_FR405; | |
371 | frv_mach = bfd_mach_fr400; | |
372 | fr400_audio = TRUE; | |
373 | } | |
374 | ||
0ebb9a87 DB |
375 | else if (strcmp (p, "fr400") == 0) |
376 | { | |
377 | cpu_flags = EF_FRV_CPU_FR400; | |
378 | frv_mach = bfd_mach_fr400; | |
676a64f4 | 379 | fr400_audio = FALSE; |
0ebb9a87 DB |
380 | } |
381 | ||
382 | else if (strcmp (p, "fr300") == 0) | |
383 | { | |
384 | cpu_flags = EF_FRV_CPU_FR300; | |
385 | frv_mach = bfd_mach_fr300; | |
386 | } | |
387 | ||
388 | else if (strcmp (p, "simple") == 0) | |
389 | { | |
390 | cpu_flags = EF_FRV_CPU_SIMPLE; | |
391 | frv_mach = bfd_mach_frvsimple; | |
392 | frv_flags |= EF_FRV_NOPACK; | |
393 | } | |
394 | ||
395 | else if (strcmp (p, "tomcat") == 0) | |
396 | { | |
397 | cpu_flags = EF_FRV_CPU_TOMCAT; | |
398 | frv_mach = bfd_mach_frvtomcat; | |
399 | } | |
400 | ||
401 | else | |
402 | { | |
bd3ba5d1 | 403 | as_fatal (_("Unknown cpu -mcpu=%s"), arg); |
0ebb9a87 DB |
404 | return 0; |
405 | } | |
406 | ||
407 | frv_flags = (frv_flags & ~EF_FRV_CPU_MASK) | cpu_flags; | |
408 | } | |
409 | break; | |
410 | ||
411 | case OPTION_PIC: | |
412 | frv_flags |= EF_FRV_PIC; | |
413 | frv_pic_p = 1; | |
414 | frv_pic_flag = "-fpic"; | |
415 | break; | |
416 | ||
417 | case OPTION_BIGPIC: | |
418 | frv_flags |= EF_FRV_BIGPIC; | |
419 | frv_pic_p = 1; | |
420 | frv_pic_flag = "-fPIC"; | |
421 | break; | |
422 | ||
423 | case OPTION_LIBPIC: | |
424 | frv_flags |= (EF_FRV_LIBPIC | EF_FRV_G0); | |
425 | frv_pic_p = 1; | |
426 | frv_pic_flag = "-mlibrary-pic"; | |
427 | g_switch_value = 0; | |
428 | break; | |
429 | ||
99d09cdb AO |
430 | case OPTION_FDPIC: |
431 | frv_flags |= EF_FRV_FDPIC; | |
432 | frv_pic_flag = "-mfdpic"; | |
433 | break; | |
434 | ||
996991aa AO |
435 | case OPTION_NOPIC: |
436 | frv_flags &= ~(EF_FRV_FDPIC | EF_FRV_PIC | |
437 | | EF_FRV_BIGPIC | EF_FRV_LIBPIC); | |
438 | frv_pic_flag = 0; | |
439 | break; | |
440 | ||
0ebb9a87 DB |
441 | case OPTION_TOMCAT_DEBUG: |
442 | tomcat_debug = 1; | |
443 | break; | |
444 | ||
445 | case OPTION_TOMCAT_STATS: | |
446 | tomcat_stats = 1; | |
447 | break; | |
448 | } | |
449 | ||
450 | return 1; | |
451 | } | |
452 | ||
453 | void | |
42477147 | 454 | md_show_usage (FILE * stream) |
0ebb9a87 DB |
455 | { |
456 | fprintf (stream, _("FRV specific command line options:\n")); | |
42477147 NC |
457 | fprintf (stream, _("-G n Put data <= n bytes in the small data area\n")); |
458 | fprintf (stream, _("-mgpr-32 Mark generated file as only using 32 GPRs\n")); | |
459 | fprintf (stream, _("-mgpr-64 Mark generated file as using all 64 GPRs\n")); | |
460 | fprintf (stream, _("-mfpr-32 Mark generated file as only using 32 FPRs\n")); | |
461 | fprintf (stream, _("-mfpr-64 Mark generated file as using all 64 FPRs\n")); | |
462 | fprintf (stream, _("-msoft-float Mark generated file as using software FP\n")); | |
463 | fprintf (stream, _("-mdword Mark generated file as using a 8-byte stack alignment\n")); | |
464 | fprintf (stream, _("-mno-dword Mark generated file as using a 4-byte stack alignment\n")); | |
465 | fprintf (stream, _("-mdouble Mark generated file as using double precision FP insns\n")); | |
466 | fprintf (stream, _("-mmedia Mark generated file as using media insns\n")); | |
467 | fprintf (stream, _("-mmuladd Mark generated file as using multiply add/subtract insns\n")); | |
468 | fprintf (stream, _("-mpack Allow instructions to be packed\n")); | |
469 | fprintf (stream, _("-mno-pack Do not allow instructions to be packed\n")); | |
470 | fprintf (stream, _("-mpic Mark generated file as using small position independent code\n")); | |
471 | fprintf (stream, _("-mPIC Mark generated file as using large position independent code\n")); | |
33eaf5de | 472 | fprintf (stream, _("-mlibrary-pic Mark generated file as using position independent code for libraries\n")); |
42477147 NC |
473 | fprintf (stream, _("-mfdpic Assemble for the FDPIC ABI\n")); |
474 | fprintf (stream, _("-mnopic Disable -mpic, -mPIC, -mlibrary-pic and -mfdpic\n")); | |
676a64f4 | 475 | fprintf (stream, _("-mcpu={fr500|fr550|fr400|fr405|fr450|fr300|frv|simple|tomcat}\n")); |
42477147 NC |
476 | fprintf (stream, _(" Record the cpu type\n")); |
477 | fprintf (stream, _("-mtomcat-stats Print out stats for tomcat workarounds\n")); | |
478 | fprintf (stream, _("-mtomcat-debug Debug tomcat workarounds\n")); | |
3739860c | 479 | } |
0ebb9a87 DB |
480 | |
481 | \f | |
482 | void | |
5a49b8ac | 483 | md_begin (void) |
0ebb9a87 DB |
484 | { |
485 | /* Initialize the `cgen' interface. */ | |
3739860c | 486 | |
0ebb9a87 DB |
487 | /* Set the machine number and endian. */ |
488 | gas_cgen_cpu_desc = frv_cgen_cpu_open (CGEN_CPU_OPEN_MACHS, 0, | |
489 | CGEN_CPU_OPEN_ENDIAN, | |
490 | CGEN_ENDIAN_BIG, | |
491 | CGEN_CPU_OPEN_END); | |
492 | frv_cgen_init_asm (gas_cgen_cpu_desc); | |
493 | ||
494 | /* This is a callback from cgen to gas to parse operands. */ | |
495 | cgen_set_parse_operand_fn (gas_cgen_cpu_desc, gas_cgen_parse_operand); | |
496 | ||
497 | /* Set the ELF flags if desired. */ | |
498 | if (frv_flags) | |
499 | bfd_set_private_flags (stdoutput, frv_flags); | |
500 | ||
501 | /* Set the machine type */ | |
502 | bfd_default_set_arch_mach (stdoutput, bfd_arch_frv, frv_mach); | |
503 | ||
504 | /* Set up gp size so we can put local common items in .sbss */ | |
505 | bfd_set_gp_size (stdoutput, g_switch_value); | |
506 | ||
507 | frv_vliw_reset (& vliw, frv_mach, frv_flags); | |
508 | } | |
509 | ||
996991aa AO |
510 | bfd_boolean |
511 | frv_md_fdpic_enabled (void) | |
512 | { | |
513 | return (frv_flags & EF_FRV_FDPIC) != 0; | |
514 | } | |
515 | ||
0ebb9a87 DB |
516 | int chain_num = 0; |
517 | ||
5a49b8ac AM |
518 | static struct vliw_insn_list * |
519 | frv_insert_vliw_insn (bfd_boolean count) | |
0ebb9a87 DB |
520 | { |
521 | struct vliw_insn_list *vliw_insn_list_entry; | |
522 | struct vliw_chain *vliw_chain_entry; | |
523 | ||
524 | if (current_vliw_chain == NULL) | |
525 | { | |
add39d23 | 526 | vliw_chain_entry = XNEW (struct vliw_chain); |
0ebb9a87 DB |
527 | vliw_chain_entry->insn_count = 0; |
528 | vliw_chain_entry->insn_list = NULL; | |
529 | vliw_chain_entry->next = NULL; | |
530 | vliw_chain_entry->num = chain_num++; | |
531 | ||
532 | if (!vliw_chain_top) | |
533 | vliw_chain_top = vliw_chain_entry; | |
534 | current_vliw_chain = vliw_chain_entry; | |
535 | if (previous_vliw_chain) | |
536 | previous_vliw_chain->next = vliw_chain_entry; | |
537 | } | |
538 | ||
add39d23 | 539 | vliw_insn_list_entry = XNEW (struct vliw_insn_list); |
0ebb9a87 DB |
540 | vliw_insn_list_entry->type = VLIW_GENERIC_TYPE; |
541 | vliw_insn_list_entry->insn = NULL; | |
542 | vliw_insn_list_entry->sym = NULL; | |
543 | vliw_insn_list_entry->snop_frag = NULL; | |
544 | vliw_insn_list_entry->dnop_frag = NULL; | |
545 | vliw_insn_list_entry->next = NULL; | |
546 | ||
547 | if (count) | |
548 | current_vliw_chain->insn_count++; | |
549 | ||
550 | if (current_vliw_insn) | |
551 | current_vliw_insn->next = vliw_insn_list_entry; | |
552 | current_vliw_insn = vliw_insn_list_entry; | |
553 | ||
554 | if (!current_vliw_chain->insn_list) | |
555 | current_vliw_chain->insn_list = current_vliw_insn; | |
556 | ||
557 | return vliw_insn_list_entry; | |
558 | } | |
559 | ||
560 | /* Identify the following cases: | |
3739860c | 561 | |
0ebb9a87 DB |
562 | 1) A VLIW insn that contains both a branch and the branch destination. |
563 | This requires the insertion of two vliw instructions before the | |
564 | branch. The first consists of two nops. The second consists of | |
565 | a single nop. | |
3739860c | 566 | |
0ebb9a87 DB |
567 | 2) A single instruction VLIW insn which is the destination of a branch |
568 | that is in the next VLIW insn. This requires the insertion of a vliw | |
569 | insn containing two nops before the branch. | |
3739860c | 570 | |
0ebb9a87 DB |
571 | 3) A double instruction VLIW insn which contains the destination of a |
572 | branch that is in the next VLIW insn. This requires the insertion of | |
573 | a VLIW insn containing a single nop before the branch. | |
3739860c | 574 | |
0ebb9a87 DB |
575 | 4) A single instruction VLIW insn which contains branch destination (x), |
576 | followed by a single instruction VLIW insn which does not contain | |
577 | the branch to (x), followed by a VLIW insn which does contain the branch | |
578 | to (x). This requires the insertion of a VLIW insn containing a single | |
579 | nop before the VLIW instruction containing the branch. | |
3739860c | 580 | |
0ebb9a87 DB |
581 | */ |
582 | #define FRV_IS_NOP(insn) (insn.buffer[0] == FRV_NOP_PACK || insn.buffer[0] == FRV_NOP_NOPACK) | |
583 | #define FRV_NOP_PACK 0x00880000 /* ori.p gr0,0,gr0 */ | |
584 | #define FRV_NOP_NOPACK 0x80880000 /* ori gr0,0,gr0 */ | |
585 | ||
586 | /* Check a vliw insn for an insn of type containing the sym passed in label_sym. */ | |
587 | ||
588 | static struct vliw_insn_list * | |
5a49b8ac AM |
589 | frv_find_in_vliw (enum vliw_insn_type vliw_insn_type, |
590 | struct vliw_chain *this_chain, | |
591 | symbolS *label_sym) | |
0ebb9a87 DB |
592 | { |
593 | ||
594 | struct vliw_insn_list *the_insn; | |
595 | ||
596 | if (!this_chain) | |
597 | return NULL; | |
598 | ||
599 | for (the_insn = this_chain->insn_list; the_insn; the_insn = the_insn->next) | |
600 | { | |
601 | if (the_insn->type == vliw_insn_type | |
602 | && the_insn->sym == label_sym) | |
603 | return the_insn; | |
604 | } | |
605 | ||
606 | return NULL; | |
607 | } | |
608 | ||
609 | enum vliw_nop_type | |
610 | { | |
611 | /* A Vliw insn containing a single nop insn. */ | |
612 | VLIW_SINGLE_NOP, | |
3739860c | 613 | |
0ebb9a87 DB |
614 | /* A Vliw insn containing two nop insns. */ |
615 | VLIW_DOUBLE_NOP, | |
616 | ||
3739860c | 617 | /* Two vliw insns. The first containing two nop insns. |
0ebb9a87 DB |
618 | The second contain a single nop insn. */ |
619 | VLIW_DOUBLE_THEN_SINGLE_NOP | |
620 | }; | |
621 | ||
622 | static void | |
5a49b8ac | 623 | frv_debug_tomcat (struct vliw_chain *start_chain) |
0ebb9a87 DB |
624 | { |
625 | struct vliw_chain *this_chain; | |
626 | struct vliw_insn_list *this_insn; | |
627 | int i = 1; | |
628 | ||
629 | for (this_chain = start_chain; this_chain; this_chain = this_chain->next, i++) | |
630 | { | |
631 | fprintf (stderr, "\nVliw Insn #%d, #insns: %d\n", i, this_chain->insn_count); | |
632 | ||
633 | for (this_insn = this_chain->insn_list; this_insn; this_insn = this_insn->next) | |
634 | { | |
635 | if (this_insn->type == VLIW_LABEL_TYPE) | |
8ad7c533 | 636 | fprintf (stderr, "Label Value: %p\n", this_insn->sym); |
0ebb9a87 | 637 | else if (this_insn->type == VLIW_BRANCH_TYPE) |
8ad7c533 | 638 | fprintf (stderr, "%s to %p\n", this_insn->insn->base->name, this_insn->sym); |
0ebb9a87 | 639 | else if (this_insn->type == VLIW_BRANCH_HAS_NOPS) |
8ad7c533 | 640 | fprintf (stderr, "nop'd %s to %p\n", this_insn->insn->base->name, this_insn->sym); |
0ebb9a87 DB |
641 | else if (this_insn->type == VLIW_NOP_TYPE) |
642 | fprintf (stderr, "Nop\n"); | |
643 | else | |
644 | fprintf (stderr, " %s\n", this_insn->insn->base->name); | |
645 | } | |
646 | } | |
647 | } | |
648 | ||
0ebb9a87 | 649 | static void |
5a49b8ac | 650 | frv_adjust_vliw_count (struct vliw_chain *this_chain) |
0ebb9a87 DB |
651 | { |
652 | struct vliw_insn_list *this_insn; | |
653 | ||
654 | this_chain->insn_count = 0; | |
655 | ||
656 | for (this_insn = this_chain->insn_list; | |
657 | this_insn; | |
658 | this_insn = this_insn->next) | |
659 | { | |
660 | if (this_insn->type != VLIW_LABEL_TYPE) | |
661 | this_chain->insn_count++; | |
662 | } | |
663 | ||
664 | } | |
665 | ||
666 | /* Insert the desired nop combination in the vliw chain before insert_before_insn. | |
667 | Rechain the vliw insn. */ | |
668 | ||
0ebb9a87 | 669 | static struct vliw_chain * |
5a49b8ac AM |
670 | frv_tomcat_shuffle (enum vliw_nop_type this_nop_type, |
671 | struct vliw_chain *vliw_to_split, | |
672 | struct vliw_insn_list *insert_before_insn) | |
0ebb9a87 DB |
673 | { |
674 | ||
b34976b6 | 675 | bfd_boolean pack_prev = FALSE; |
0ebb9a87 DB |
676 | struct vliw_chain *return_me = NULL; |
677 | struct vliw_insn_list *prev_insn = NULL; | |
678 | struct vliw_insn_list *curr_insn = vliw_to_split->insn_list; | |
679 | ||
add39d23 TS |
680 | struct vliw_chain *double_nop = XNEW (struct vliw_chain); |
681 | struct vliw_chain *single_nop = XNEW (struct vliw_chain); | |
682 | struct vliw_chain *second_part = XNEW (struct vliw_chain); | |
0ebb9a87 DB |
683 | struct vliw_chain *curr_vliw = vliw_chain_top; |
684 | struct vliw_chain *prev_vliw = NULL; | |
685 | ||
686 | while (curr_insn && curr_insn != insert_before_insn) | |
687 | { | |
688 | /* We can't set the packing bit on a label. If we have the case | |
689 | label 1: | |
690 | label 2: | |
691 | label 3: | |
692 | branch that needs nops | |
693 | Then don't set pack bit later. */ | |
694 | ||
695 | if (curr_insn->type != VLIW_LABEL_TYPE) | |
b34976b6 | 696 | pack_prev = TRUE; |
0ebb9a87 DB |
697 | prev_insn = curr_insn; |
698 | curr_insn = curr_insn->next; | |
3739860c | 699 | } |
0ebb9a87 DB |
700 | |
701 | while (curr_vliw && curr_vliw != vliw_to_split) | |
702 | { | |
703 | prev_vliw = curr_vliw; | |
704 | curr_vliw = curr_vliw->next; | |
705 | } | |
706 | ||
707 | switch (this_nop_type) | |
708 | { | |
709 | case VLIW_SINGLE_NOP: | |
710 | if (!prev_insn) | |
711 | { | |
712 | /* Branch is first, Insert the NOP prior to this vliw insn. */ | |
713 | if (prev_vliw) | |
714 | prev_vliw->next = single_nop; | |
715 | else | |
716 | vliw_chain_top = single_nop; | |
717 | single_nop->next = vliw_to_split; | |
718 | vliw_to_split->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
719 | return_me = vliw_to_split; | |
720 | } | |
721 | else | |
722 | { | |
723 | /* Set the packing bit on the previous insn. */ | |
724 | if (pack_prev) | |
725 | { | |
2132e3a3 | 726 | char *buffer = prev_insn->address; |
0ebb9a87 DB |
727 | buffer[0] |= 0x80; |
728 | } | |
729 | /* The branch is in the middle. Split this vliw insn into first | |
2b0f3761 | 730 | and second parts. Insert the NOP between. */ |
0ebb9a87 DB |
731 | |
732 | second_part->insn_list = insert_before_insn; | |
733 | second_part->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
734 | second_part->next = vliw_to_split->next; | |
735 | frv_adjust_vliw_count (second_part); | |
736 | ||
737 | single_nop->next = second_part; | |
3739860c | 738 | |
0ebb9a87 DB |
739 | vliw_to_split->next = single_nop; |
740 | prev_insn->next = NULL; | |
3739860c | 741 | |
0ebb9a87 DB |
742 | return_me = second_part; |
743 | frv_adjust_vliw_count (vliw_to_split); | |
744 | } | |
745 | break; | |
746 | ||
747 | case VLIW_DOUBLE_NOP: | |
748 | if (!prev_insn) | |
749 | { | |
750 | /* Branch is first, Insert the NOP prior to this vliw insn. */ | |
751 | if (prev_vliw) | |
752 | prev_vliw->next = double_nop; | |
753 | else | |
754 | vliw_chain_top = double_nop; | |
755 | ||
756 | double_nop->next = vliw_to_split; | |
757 | return_me = vliw_to_split; | |
758 | vliw_to_split->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
759 | } | |
760 | else | |
761 | { | |
762 | /* Set the packing bit on the previous insn. */ | |
763 | if (pack_prev) | |
764 | { | |
2132e3a3 | 765 | char *buffer = prev_insn->address; |
0ebb9a87 DB |
766 | buffer[0] |= 0x80; |
767 | } | |
768 | ||
769 | /* The branch is in the middle. Split this vliw insn into first | |
2b0f3761 | 770 | and second parts. Insert the NOP in between. */ |
0ebb9a87 DB |
771 | second_part->insn_list = insert_before_insn; |
772 | second_part->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
773 | second_part->next = vliw_to_split->next; | |
774 | frv_adjust_vliw_count (second_part); | |
3739860c | 775 | |
0ebb9a87 | 776 | double_nop->next = second_part; |
3739860c | 777 | |
0ebb9a87 DB |
778 | vliw_to_split->next = single_nop; |
779 | prev_insn->next = NULL; | |
780 | frv_adjust_vliw_count (vliw_to_split); | |
3739860c | 781 | |
0ebb9a87 DB |
782 | return_me = second_part; |
783 | } | |
784 | break; | |
785 | ||
786 | case VLIW_DOUBLE_THEN_SINGLE_NOP: | |
787 | double_nop->next = single_nop; | |
788 | double_nop->insn_count = 2; | |
789 | double_nop->insn_list = &double_nop_insn; | |
790 | single_nop->insn_count = 1; | |
791 | single_nop->insn_list = &single_nop_insn; | |
792 | ||
793 | if (!prev_insn) | |
794 | { | |
795 | /* The branch is the first insn in this vliw. Don't split the vliw. Insert | |
796 | the nops prior to this vliw. */ | |
797 | if (prev_vliw) | |
798 | prev_vliw->next = double_nop; | |
799 | else | |
800 | vliw_chain_top = double_nop; | |
3739860c | 801 | |
0ebb9a87 DB |
802 | single_nop->next = vliw_to_split; |
803 | return_me = vliw_to_split; | |
804 | vliw_to_split->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
805 | } | |
806 | else | |
807 | { | |
808 | /* Set the packing bit on the previous insn. */ | |
809 | if (pack_prev) | |
810 | { | |
2132e3a3 | 811 | char *buffer = prev_insn->address; |
0ebb9a87 DB |
812 | buffer[0] |= 0x80; |
813 | } | |
814 | ||
815 | /* The branch is in the middle of this vliw insn. Split into first and | |
3739860c | 816 | second parts. Insert the nop vliws in between. */ |
0ebb9a87 DB |
817 | second_part->insn_list = insert_before_insn; |
818 | second_part->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
819 | second_part->next = vliw_to_split->next; | |
820 | frv_adjust_vliw_count (second_part); | |
821 | ||
822 | single_nop->next = second_part; | |
823 | ||
824 | vliw_to_split->next = double_nop; | |
825 | prev_insn->next = NULL; | |
826 | frv_adjust_vliw_count (vliw_to_split); | |
827 | ||
828 | return_me = second_part; | |
829 | } | |
830 | break; | |
831 | } | |
832 | ||
833 | return return_me; | |
834 | } | |
835 | ||
836 | static void | |
5a49b8ac | 837 | frv_tomcat_analyze_vliw_chains (void) |
0ebb9a87 DB |
838 | { |
839 | struct vliw_chain *vliw1 = NULL; | |
840 | struct vliw_chain *vliw2 = NULL; | |
841 | struct vliw_chain *vliw3 = NULL; | |
842 | ||
843 | struct vliw_insn_list *this_insn = NULL; | |
844 | struct vliw_insn_list *temp_insn = NULL; | |
845 | ||
846 | /* We potentially need to look at three VLIW insns to determine if the | |
847 | workaround is required. Set them up. Ignore existing nops during analysis. */ | |
848 | ||
849 | #define FRV_SET_VLIW_WINDOW(VLIW1, VLIW2, VLIW3) \ | |
850 | if (VLIW1 && VLIW1->next) \ | |
851 | VLIW2 = VLIW1->next; \ | |
852 | else \ | |
853 | VLIW2 = NULL; \ | |
854 | if (VLIW2 && VLIW2->next) \ | |
855 | VLIW3 = VLIW2->next; \ | |
856 | else \ | |
857 | VLIW3 = NULL | |
858 | ||
859 | vliw1 = vliw_chain_top; | |
860 | ||
861 | workaround_top: | |
862 | ||
863 | FRV_SET_VLIW_WINDOW (vliw1, vliw2, vliw3); | |
864 | ||
865 | if (!vliw1) | |
866 | return; | |
867 | ||
868 | if (vliw1->insn_count == 1) | |
869 | { | |
870 | /* check vliw1 for a label. */ | |
871 | if (vliw1->insn_list->type == VLIW_LABEL_TYPE) | |
872 | { | |
873 | temp_insn = frv_find_in_vliw (VLIW_BRANCH_TYPE, vliw2, vliw1->insn_list->sym); | |
874 | if (temp_insn) | |
875 | { | |
876 | vliw1 = frv_tomcat_shuffle (VLIW_DOUBLE_NOP, vliw2, vliw1->insn_list); | |
877 | temp_insn->dnop_frag->fr_subtype = NOP_KEEP; | |
878 | vliw1 = vliw1->next; | |
879 | if (tomcat_stats) | |
880 | tomcat_doubles++; | |
881 | goto workaround_top; | |
882 | } | |
3739860c | 883 | else if (vliw2 |
0ebb9a87 DB |
884 | && vliw2->insn_count == 1 |
885 | && (temp_insn = frv_find_in_vliw (VLIW_BRANCH_TYPE, vliw3, vliw1->insn_list->sym)) != NULL) | |
886 | { | |
887 | temp_insn->snop_frag->fr_subtype = NOP_KEEP; | |
888 | vliw1 = frv_tomcat_shuffle (VLIW_SINGLE_NOP, vliw3, vliw3->insn_list); | |
889 | if (tomcat_stats) | |
890 | tomcat_singles++; | |
891 | goto workaround_top; | |
892 | } | |
893 | } | |
894 | } | |
895 | ||
896 | if (vliw1->insn_count == 2) | |
897 | { | |
91d6fa6a | 898 | /* Check vliw1 for a label. */ |
0ebb9a87 DB |
899 | for (this_insn = vliw1->insn_list; this_insn; this_insn = this_insn->next) |
900 | { | |
901 | if (this_insn->type == VLIW_LABEL_TYPE) | |
902 | { | |
a08333bb | 903 | if ((temp_insn = frv_find_in_vliw (VLIW_BRANCH_TYPE, vliw2, this_insn->sym)) != NULL) |
0ebb9a87 DB |
904 | { |
905 | temp_insn->snop_frag->fr_subtype = NOP_KEEP; | |
906 | vliw1 = frv_tomcat_shuffle (VLIW_SINGLE_NOP, vliw2, this_insn); | |
907 | if (tomcat_stats) | |
908 | tomcat_singles++; | |
909 | } | |
910 | else | |
911 | vliw1 = vliw1->next; | |
912 | goto workaround_top; | |
913 | } | |
914 | } | |
915 | } | |
916 | /* Examine each insn in this VLIW. Look for the workaround criteria. */ | |
917 | for (this_insn = vliw1->insn_list; this_insn; this_insn = this_insn->next) | |
918 | { | |
919 | /* Don't look at labels or nops. */ | |
920 | while (this_insn | |
921 | && (this_insn->type == VLIW_LABEL_TYPE | |
922 | || this_insn->type == VLIW_NOP_TYPE | |
923 | || this_insn->type == VLIW_BRANCH_HAS_NOPS)) | |
924 | this_insn = this_insn->next; | |
925 | ||
926 | if (!this_insn) | |
927 | { | |
928 | vliw1 = vliw2; | |
929 | goto workaround_top; | |
930 | } | |
931 | ||
932 | if (frv_is_branch_insn (this_insn->insn)) | |
933 | { | |
a08333bb | 934 | if ((temp_insn = frv_find_in_vliw (VLIW_LABEL_TYPE, vliw1, this_insn->sym)) != NULL) |
0ebb9a87 DB |
935 | { |
936 | /* Insert [nop/nop] [nop] before branch. */ | |
937 | this_insn->snop_frag->fr_subtype = NOP_KEEP; | |
938 | this_insn->dnop_frag->fr_subtype = NOP_KEEP; | |
939 | vliw1 = frv_tomcat_shuffle (VLIW_DOUBLE_THEN_SINGLE_NOP, vliw1, this_insn); | |
940 | goto workaround_top; | |
941 | } | |
942 | } | |
943 | ||
944 | ||
945 | } | |
946 | /* This vliw insn checks out okay. Take a look at the next one. */ | |
947 | vliw1 = vliw1->next; | |
948 | goto workaround_top; | |
949 | } | |
950 | ||
951 | void | |
5a49b8ac | 952 | frv_tomcat_workaround (void) |
0ebb9a87 DB |
953 | { |
954 | if (frv_mach != bfd_mach_frvtomcat) | |
955 | return; | |
956 | ||
957 | if (tomcat_debug) | |
958 | frv_debug_tomcat (vliw_chain_top); | |
959 | ||
960 | frv_tomcat_analyze_vliw_chains (); | |
961 | ||
962 | if (tomcat_stats) | |
963 | { | |
964 | fprintf (stderr, "Inserted %d Single Nops\n", tomcat_singles); | |
965 | fprintf (stderr, "Inserted %d Double Nops\n", tomcat_doubles); | |
966 | } | |
967 | } | |
968 | ||
1ae31fee DB |
969 | static int |
970 | fr550_check_insn_acc_range (frv_insn *insn, int low, int hi) | |
971 | { | |
972 | int acc; | |
973 | switch (CGEN_INSN_NUM (insn->insn)) | |
974 | { | |
975 | case FRV_INSN_MADDACCS: | |
976 | case FRV_INSN_MSUBACCS: | |
977 | case FRV_INSN_MDADDACCS: | |
978 | case FRV_INSN_MDSUBACCS: | |
979 | case FRV_INSN_MASACCS: | |
980 | case FRV_INSN_MDASACCS: | |
981 | acc = insn->fields.f_ACC40Si; | |
982 | if (acc < low || acc > hi) | |
983 | return 1; /* out of range */ | |
984 | acc = insn->fields.f_ACC40Sk; | |
985 | if (acc < low || acc > hi) | |
986 | return 1; /* out of range */ | |
987 | break; | |
988 | case FRV_INSN_MMULHS: | |
989 | case FRV_INSN_MMULHU: | |
990 | case FRV_INSN_MMULXHS: | |
991 | case FRV_INSN_MMULXHU: | |
992 | case FRV_INSN_CMMULHS: | |
993 | case FRV_INSN_CMMULHU: | |
994 | case FRV_INSN_MQMULHS: | |
995 | case FRV_INSN_MQMULHU: | |
996 | case FRV_INSN_MQMULXHS: | |
997 | case FRV_INSN_MQMULXHU: | |
998 | case FRV_INSN_CMQMULHS: | |
999 | case FRV_INSN_CMQMULHU: | |
1000 | case FRV_INSN_MMACHS: | |
1001 | case FRV_INSN_MMRDHS: | |
3739860c | 1002 | case FRV_INSN_CMMACHS: |
1ae31fee DB |
1003 | case FRV_INSN_MQMACHS: |
1004 | case FRV_INSN_CMQMACHS: | |
1005 | case FRV_INSN_MQXMACHS: | |
1006 | case FRV_INSN_MQXMACXHS: | |
1007 | case FRV_INSN_MQMACXHS: | |
1008 | case FRV_INSN_MCPXRS: | |
1009 | case FRV_INSN_MCPXIS: | |
1010 | case FRV_INSN_CMCPXRS: | |
1011 | case FRV_INSN_CMCPXIS: | |
1012 | case FRV_INSN_MQCPXRS: | |
1013 | case FRV_INSN_MQCPXIS: | |
1014 | acc = insn->fields.f_ACC40Sk; | |
1015 | if (acc < low || acc > hi) | |
1016 | return 1; /* out of range */ | |
1017 | break; | |
1018 | case FRV_INSN_MMACHU: | |
1019 | case FRV_INSN_MMRDHU: | |
1020 | case FRV_INSN_CMMACHU: | |
1021 | case FRV_INSN_MQMACHU: | |
1022 | case FRV_INSN_CMQMACHU: | |
1023 | case FRV_INSN_MCPXRU: | |
1024 | case FRV_INSN_MCPXIU: | |
1025 | case FRV_INSN_CMCPXRU: | |
1026 | case FRV_INSN_CMCPXIU: | |
1027 | case FRV_INSN_MQCPXRU: | |
1028 | case FRV_INSN_MQCPXIU: | |
1029 | acc = insn->fields.f_ACC40Uk; | |
1030 | if (acc < low || acc > hi) | |
1031 | return 1; /* out of range */ | |
1032 | break; | |
1033 | default: | |
1034 | break; | |
1035 | } | |
1036 | return 0; /* all is ok */ | |
1037 | } | |
1038 | ||
1039 | static int | |
91d6fa6a | 1040 | fr550_check_acc_range (FRV_VLIW *vlw, frv_insn *insn) |
1ae31fee | 1041 | { |
91d6fa6a | 1042 | switch ((*vlw->current_vliw)[vlw->next_slot - 1]) |
1ae31fee DB |
1043 | { |
1044 | case UNIT_FM0: | |
1045 | case UNIT_FM2: | |
1046 | return fr550_check_insn_acc_range (insn, 0, 3); | |
1047 | case UNIT_FM1: | |
1048 | case UNIT_FM3: | |
1049 | return fr550_check_insn_acc_range (insn, 4, 7); | |
1050 | default: | |
1051 | break; | |
1052 | } | |
1053 | return 0; /* all is ok */ | |
1054 | } | |
1055 | ||
676a64f4 RS |
1056 | /* Return true if the target implements instruction INSN. */ |
1057 | ||
1058 | static bfd_boolean | |
1059 | target_implements_insn_p (const CGEN_INSN *insn) | |
1060 | { | |
1061 | switch (frv_mach) | |
1062 | { | |
1063 | default: | |
1064 | /* bfd_mach_frv or generic. */ | |
1065 | return TRUE; | |
1066 | ||
1067 | case bfd_mach_fr300: | |
1068 | case bfd_mach_frvsimple: | |
1069 | return CGEN_INSN_MACH_HAS_P (insn, MACH_SIMPLE); | |
1070 | ||
1071 | case bfd_mach_fr400: | |
1072 | return ((fr400_audio || !CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_AUDIO)) | |
1073 | && CGEN_INSN_MACH_HAS_P (insn, MACH_FR400)); | |
1074 | ||
1075 | case bfd_mach_fr450: | |
1076 | return CGEN_INSN_MACH_HAS_P (insn, MACH_FR450); | |
1077 | ||
1078 | case bfd_mach_fr500: | |
1079 | return CGEN_INSN_MACH_HAS_P (insn, MACH_FR500); | |
1080 | ||
1081 | case bfd_mach_fr550: | |
1082 | return CGEN_INSN_MACH_HAS_P (insn, MACH_FR550); | |
1083 | } | |
1084 | } | |
1085 | ||
0ebb9a87 | 1086 | void |
5a49b8ac | 1087 | md_assemble (char *str) |
0ebb9a87 DB |
1088 | { |
1089 | frv_insn insn; | |
1090 | char *errmsg; | |
1091 | int packing_constraint; | |
1092 | finished_insnS finished_insn; | |
1093 | fragS *double_nop_frag = NULL; | |
1094 | fragS *single_nop_frag = NULL; | |
1095 | struct vliw_insn_list *vliw_insn_list_entry = NULL; | |
1096 | ||
1097 | /* Initialize GAS's cgen interface for a new instruction. */ | |
1098 | gas_cgen_init_parse (); | |
1099 | ||
99d09cdb AO |
1100 | memset (&insn, 0, sizeof (insn)); |
1101 | ||
0ebb9a87 DB |
1102 | insn.insn = frv_cgen_assemble_insn |
1103 | (gas_cgen_cpu_desc, str, & insn.fields, insn.buffer, &errmsg); | |
3739860c | 1104 | |
0ebb9a87 DB |
1105 | if (!insn.insn) |
1106 | { | |
20203fb9 | 1107 | as_bad ("%s", errmsg); |
0ebb9a87 DB |
1108 | return; |
1109 | } | |
3739860c | 1110 | |
0ebb9a87 DB |
1111 | /* If the cpu is tomcat, then we need to insert nops to workaround |
1112 | hardware limitations. We need to keep track of each vliw unit | |
1113 | and examine the length of the unit and the individual insns | |
1114 | within the unit to determine the number and location of the | |
1115 | required nops. */ | |
1116 | if (frv_mach == bfd_mach_frvtomcat) | |
1117 | { | |
1118 | /* If we've just finished a VLIW insn OR this is a branch, | |
1119 | then start up a new frag. Fill it with nops. We will get rid | |
3739860c | 1120 | of those that are not required after we've seen all of the |
0ebb9a87 DB |
1121 | instructions but before we start resolving fixups. */ |
1122 | if ( !FRV_IS_NOP (insn) | |
1123 | && (frv_is_branch_insn (insn.insn) || insn.fields.f_pack)) | |
1124 | { | |
1125 | char *buffer; | |
1126 | ||
1127 | frag_wane (frag_now); | |
1128 | frag_new (0); | |
1129 | double_nop_frag = frag_now; | |
1130 | buffer = frag_var (rs_machine_dependent, 8, 8, NOP_DELETE, NULL, 0, 0); | |
1131 | md_number_to_chars (buffer, FRV_NOP_PACK, 4); | |
1132 | md_number_to_chars (buffer+4, FRV_NOP_NOPACK, 4); | |
1133 | ||
1134 | frag_wane (frag_now); | |
1135 | frag_new (0); | |
1136 | single_nop_frag = frag_now; | |
1137 | buffer = frag_var (rs_machine_dependent, 4, 4, NOP_DELETE, NULL, 0, 0); | |
1138 | md_number_to_chars (buffer, FRV_NOP_NOPACK, 4); | |
1139 | } | |
1140 | ||
1141 | vliw_insn_list_entry = frv_insert_vliw_insn (DO_COUNT); | |
1142 | vliw_insn_list_entry->insn = insn.insn; | |
1143 | if (frv_is_branch_insn (insn.insn)) | |
1144 | vliw_insn_list_entry->type = VLIW_BRANCH_TYPE; | |
1145 | ||
1146 | if ( !FRV_IS_NOP (insn) | |
1147 | && (frv_is_branch_insn (insn.insn) || insn.fields.f_pack)) | |
1148 | { | |
1149 | vliw_insn_list_entry->snop_frag = single_nop_frag; | |
1150 | vliw_insn_list_entry->dnop_frag = double_nop_frag; | |
1151 | } | |
1152 | } | |
1153 | ||
1154 | /* Make sure that this insn does not violate the VLIW packing constraints. */ | |
1155 | /* -mno-pack disallows any packing whatsoever. */ | |
1156 | if (frv_flags & EF_FRV_NOPACK) | |
1157 | { | |
1158 | if (! insn.fields.f_pack) | |
1159 | { | |
1160 | as_bad (_("VLIW packing used for -mno-pack")); | |
1161 | return; | |
1162 | } | |
1163 | } | |
1164 | /* -mcpu=FRV is an idealized FR-V implementation that supports all of the | |
1165 | instructions, don't do vliw checking. */ | |
1166 | else if (frv_mach != bfd_mach_frv) | |
1167 | { | |
676a64f4 RS |
1168 | if (!target_implements_insn_p (insn.insn)) |
1169 | { | |
1170 | as_bad (_("Instruction not supported by this architecture")); | |
1171 | return; | |
1172 | } | |
0ebb9a87 | 1173 | packing_constraint = frv_vliw_add_insn (& vliw, insn.insn); |
1ae31fee DB |
1174 | if (frv_mach == bfd_mach_fr550 && ! packing_constraint) |
1175 | packing_constraint = fr550_check_acc_range (& vliw, & insn); | |
0ebb9a87 DB |
1176 | if (insn.fields.f_pack) |
1177 | frv_vliw_reset (& vliw, frv_mach, frv_flags); | |
1178 | if (packing_constraint) | |
1179 | { | |
1180 | as_bad (_("VLIW packing constraint violation")); | |
1181 | return; | |
1182 | } | |
1183 | } | |
1184 | ||
1185 | /* Doesn't really matter what we pass for RELAX_P here. */ | |
1186 | gas_cgen_finish_insn (insn.insn, insn.buffer, | |
1187 | CGEN_FIELDS_BITSIZE (& insn.fields), 1, &finished_insn); | |
1188 | ||
1189 | ||
1190 | /* If the cpu is tomcat, then we need to insert nops to workaround | |
1191 | hardware limitations. We need to keep track of each vliw unit | |
1192 | and examine the length of the unit and the individual insns | |
1193 | within the unit to determine the number and location of the | |
1194 | required nops. */ | |
1195 | if (frv_mach == bfd_mach_frvtomcat) | |
1196 | { | |
1197 | if (vliw_insn_list_entry) | |
1198 | vliw_insn_list_entry->address = finished_insn.addr; | |
1199 | else | |
1200 | abort(); | |
1201 | ||
1202 | if (insn.fields.f_pack) | |
1203 | { | |
1204 | /* We've completed a VLIW insn. */ | |
1205 | previous_vliw_chain = current_vliw_chain; | |
1206 | current_vliw_chain = NULL; | |
1207 | current_vliw_insn = NULL; | |
3739860c | 1208 | } |
0ebb9a87 DB |
1209 | } |
1210 | } | |
1211 | ||
1212 | /* The syntax in the manual says constants begin with '#'. | |
1213 | We just ignore it. */ | |
1214 | ||
3739860c | 1215 | void |
5a49b8ac | 1216 | md_operand (expressionS *expressionP) |
0ebb9a87 DB |
1217 | { |
1218 | if (* input_line_pointer == '#') | |
1219 | { | |
1220 | input_line_pointer ++; | |
1221 | expression (expressionP); | |
1222 | } | |
1223 | } | |
1224 | ||
1225 | valueT | |
5a49b8ac | 1226 | md_section_align (segT segment, valueT size) |
0ebb9a87 DB |
1227 | { |
1228 | int align = bfd_get_section_alignment (stdoutput, segment); | |
8d3842cd | 1229 | return ((size + (1 << align) - 1) & -(1 << align)); |
0ebb9a87 DB |
1230 | } |
1231 | ||
1232 | symbolS * | |
5a49b8ac | 1233 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
0ebb9a87 DB |
1234 | { |
1235 | return 0; | |
1236 | } | |
1237 | \f | |
1238 | /* Interface to relax_segment. */ | |
1239 | ||
1240 | /* FIXME: Build table by hand, get it working, then machine generate. */ | |
1241 | const relax_typeS md_relax_table[] = | |
1242 | { | |
1243 | {1, 1, 0, 0}, | |
1244 | {511 - 2 - 2, -512 - 2 + 2, 0, 2 }, | |
1245 | {0x2000000 - 1 - 2, -0x2000000 - 2, 2, 0 }, | |
1246 | {0x2000000 - 1 - 2, -0x2000000 - 2, 4, 0 } | |
1247 | }; | |
1248 | ||
1249 | long | |
5a49b8ac | 1250 | frv_relax_frag (fragS *fragP ATTRIBUTE_UNUSED, long stretch ATTRIBUTE_UNUSED) |
0ebb9a87 DB |
1251 | { |
1252 | return 0; | |
1253 | } | |
1254 | ||
1255 | /* Return an initial guess of the length by which a fragment must grow to | |
1256 | hold a branch to reach its destination. | |
1257 | Also updates fr_type/fr_subtype as necessary. | |
1258 | ||
1259 | Called just before doing relaxation. | |
1260 | Any symbol that is now undefined will not become defined. | |
1261 | The guess for fr_var is ACTUALLY the growth beyond fr_fix. | |
1262 | Whatever we do to grow fr_fix or fr_var contributes to our returned value. | |
1263 | Although it may not be explicit in the frag, pretend fr_var starts with a | |
1264 | 0 value. */ | |
1265 | ||
1266 | int | |
5a49b8ac | 1267 | md_estimate_size_before_relax (fragS *fragP, segT segment ATTRIBUTE_UNUSED) |
0ebb9a87 DB |
1268 | { |
1269 | switch (fragP->fr_subtype) | |
1270 | { | |
1271 | case NOP_KEEP: | |
1272 | return fragP->fr_var; | |
1273 | ||
1274 | default: | |
1275 | case NOP_DELETE: | |
1276 | return 0; | |
3739860c L |
1277 | } |
1278 | } | |
0ebb9a87 DB |
1279 | |
1280 | /* *fragP has been relaxed to its final size, and now needs to have | |
1281 | the bytes inside it modified to conform to the new size. | |
1282 | ||
1283 | Called after relaxation is finished. | |
1284 | fragP->fr_type == rs_machine_dependent. | |
1285 | fragP->fr_subtype is the subtype of what the address relaxed to. */ | |
1286 | ||
1287 | void | |
5a49b8ac AM |
1288 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, |
1289 | segT sec ATTRIBUTE_UNUSED, | |
1290 | fragS *fragP) | |
0ebb9a87 DB |
1291 | { |
1292 | switch (fragP->fr_subtype) | |
1293 | { | |
1294 | default: | |
1295 | case NOP_DELETE: | |
1296 | return; | |
1297 | ||
1298 | case NOP_KEEP: | |
1299 | fragP->fr_fix = fragP->fr_var; | |
1300 | fragP->fr_var = 0; | |
3739860c | 1301 | return; |
0ebb9a87 DB |
1302 | } |
1303 | } | |
1304 | \f | |
1305 | /* Functions concerning relocs. */ | |
1306 | ||
1307 | /* The location from which a PC relative jump should be calculated, | |
1308 | given a PC relative reloc. */ | |
1309 | ||
1310 | long | |
5a49b8ac | 1311 | md_pcrel_from_section (fixS *fixP, segT sec) |
0ebb9a87 | 1312 | { |
a939d090 AO |
1313 | if (TC_FORCE_RELOCATION (fixP) |
1314 | || (fixP->fx_addsy != (symbolS *) NULL | |
1315 | && S_GET_SEGMENT (fixP->fx_addsy) != sec)) | |
1316 | { | |
1317 | /* If we can't adjust this relocation, or if it references a | |
1318 | local symbol in a different section (which | |
1319 | TC_FORCE_RELOCATION can't check), let the linker figure it | |
1320 | out. */ | |
1321 | return 0; | |
1322 | } | |
0ebb9a87 DB |
1323 | |
1324 | return (fixP->fx_frag->fr_address + fixP->fx_where) & ~1; | |
1325 | } | |
1326 | ||
1327 | /* Return the bfd reloc type for OPERAND of INSN at fixup FIXP. | |
1328 | Returns BFD_RELOC_NONE if no reloc type can be found. | |
1329 | *FIXP may be modified if desired. */ | |
1330 | ||
1331 | bfd_reloc_code_real_type | |
5a49b8ac AM |
1332 | md_cgen_lookup_reloc (const CGEN_INSN *insn ATTRIBUTE_UNUSED, |
1333 | const CGEN_OPERAND *operand, | |
1334 | fixS *fixP) | |
0ebb9a87 DB |
1335 | { |
1336 | switch (operand->type) | |
1337 | { | |
1338 | case FRV_OPERAND_LABEL16: | |
b34976b6 | 1339 | fixP->fx_pcrel = TRUE; |
0ebb9a87 DB |
1340 | return BFD_RELOC_FRV_LABEL16; |
1341 | ||
1342 | case FRV_OPERAND_LABEL24: | |
b34976b6 | 1343 | fixP->fx_pcrel = TRUE; |
90219bd0 AO |
1344 | |
1345 | if (fixP->fx_cgen.opinfo != 0) | |
1346 | return fixP->fx_cgen.opinfo; | |
1347 | ||
0ebb9a87 DB |
1348 | return BFD_RELOC_FRV_LABEL24; |
1349 | ||
1350 | case FRV_OPERAND_UHI16: | |
1351 | case FRV_OPERAND_ULO16: | |
1352 | case FRV_OPERAND_SLO16: | |
90219bd0 AO |
1353 | case FRV_OPERAND_CALLANN: |
1354 | case FRV_OPERAND_LDANN: | |
1355 | case FRV_OPERAND_LDDANN: | |
0ebb9a87 DB |
1356 | /* The relocation type should be recorded in opinfo */ |
1357 | if (fixP->fx_cgen.opinfo != 0) | |
1358 | return fixP->fx_cgen.opinfo; | |
1359 | break; | |
1360 | ||
1361 | case FRV_OPERAND_D12: | |
1362 | case FRV_OPERAND_S12: | |
99d09cdb AO |
1363 | if (fixP->fx_cgen.opinfo != 0) |
1364 | return fixP->fx_cgen.opinfo; | |
1365 | ||
0ebb9a87 DB |
1366 | return BFD_RELOC_FRV_GPREL12; |
1367 | ||
1368 | case FRV_OPERAND_U12: | |
1369 | return BFD_RELOC_FRV_GPRELU12; | |
1370 | ||
3739860c | 1371 | default: |
0ebb9a87 DB |
1372 | break; |
1373 | } | |
1374 | return BFD_RELOC_NONE; | |
1375 | } | |
1376 | ||
1377 | ||
1378 | /* See whether we need to force a relocation into the output file. | |
1379 | This is used to force out switch and PC relative relocations when | |
1380 | relaxing. */ | |
1381 | ||
1382 | int | |
5a49b8ac | 1383 | frv_force_relocation (fixS *fix) |
0ebb9a87 | 1384 | { |
90219bd0 | 1385 | switch (fix->fx_r_type < BFD_RELOC_UNUSED |
f17c130b | 1386 | ? (int) fix->fx_r_type |
90219bd0 AO |
1387 | : fix->fx_cgen.opinfo) |
1388 | { | |
1389 | case BFD_RELOC_FRV_GPREL12: | |
1390 | case BFD_RELOC_FRV_GPRELU12: | |
1391 | case BFD_RELOC_FRV_GPREL32: | |
1392 | case BFD_RELOC_FRV_GPRELHI: | |
1393 | case BFD_RELOC_FRV_GPRELLO: | |
1394 | case BFD_RELOC_FRV_GOT12: | |
1395 | case BFD_RELOC_FRV_GOTHI: | |
1396 | case BFD_RELOC_FRV_GOTLO: | |
1397 | case BFD_RELOC_FRV_FUNCDESC_VALUE: | |
1398 | case BFD_RELOC_FRV_FUNCDESC_GOTOFF12: | |
1399 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI: | |
1400 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO: | |
1401 | case BFD_RELOC_FRV_GOTOFF12: | |
1402 | case BFD_RELOC_FRV_GOTOFFHI: | |
1403 | case BFD_RELOC_FRV_GOTOFFLO: | |
1404 | case BFD_RELOC_FRV_GETTLSOFF: | |
1405 | case BFD_RELOC_FRV_TLSDESC_VALUE: | |
1406 | case BFD_RELOC_FRV_GOTTLSDESC12: | |
1407 | case BFD_RELOC_FRV_GOTTLSDESCHI: | |
1408 | case BFD_RELOC_FRV_GOTTLSDESCLO: | |
1409 | case BFD_RELOC_FRV_TLSMOFF12: | |
1410 | case BFD_RELOC_FRV_TLSMOFFHI: | |
1411 | case BFD_RELOC_FRV_TLSMOFFLO: | |
1412 | case BFD_RELOC_FRV_GOTTLSOFF12: | |
1413 | case BFD_RELOC_FRV_GOTTLSOFFHI: | |
1414 | case BFD_RELOC_FRV_GOTTLSOFFLO: | |
1415 | case BFD_RELOC_FRV_TLSOFF: | |
1416 | case BFD_RELOC_FRV_TLSDESC_RELAX: | |
1417 | case BFD_RELOC_FRV_GETTLSOFF_RELAX: | |
1418 | case BFD_RELOC_FRV_TLSOFF_RELAX: | |
1419 | return 1; | |
1420 | ||
1421 | default: | |
1422 | break; | |
1423 | } | |
0ebb9a87 | 1424 | |
ae6063d4 | 1425 | return generic_force_reloc (fix); |
0ebb9a87 | 1426 | } |
99d09cdb AO |
1427 | |
1428 | /* Apply a fixup that could be resolved within the assembler. */ | |
1429 | ||
1430 | void | |
5a49b8ac | 1431 | md_apply_fix (fixS *fixP, valueT *valP, segT seg) |
99d09cdb AO |
1432 | { |
1433 | if (fixP->fx_addsy == 0) | |
1434 | switch (fixP->fx_cgen.opinfo) | |
1435 | { | |
1436 | case BFD_RELOC_FRV_HI16: | |
1437 | *valP >>= 16; | |
1438 | /* Fall through. */ | |
1439 | case BFD_RELOC_FRV_LO16: | |
1440 | *valP &= 0xffff; | |
1441 | break; | |
90219bd0 AO |
1442 | |
1443 | /* We need relocations for these, even if their symbols reduce | |
1444 | to constants. */ | |
1445 | case BFD_RELOC_FRV_GPREL12: | |
1446 | case BFD_RELOC_FRV_GPRELU12: | |
1447 | case BFD_RELOC_FRV_GPREL32: | |
1448 | case BFD_RELOC_FRV_GPRELHI: | |
1449 | case BFD_RELOC_FRV_GPRELLO: | |
1450 | case BFD_RELOC_FRV_GOT12: | |
1451 | case BFD_RELOC_FRV_GOTHI: | |
1452 | case BFD_RELOC_FRV_GOTLO: | |
1453 | case BFD_RELOC_FRV_FUNCDESC_VALUE: | |
1454 | case BFD_RELOC_FRV_FUNCDESC_GOTOFF12: | |
1455 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI: | |
1456 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO: | |
1457 | case BFD_RELOC_FRV_GOTOFF12: | |
1458 | case BFD_RELOC_FRV_GOTOFFHI: | |
1459 | case BFD_RELOC_FRV_GOTOFFLO: | |
1460 | case BFD_RELOC_FRV_GETTLSOFF: | |
1461 | case BFD_RELOC_FRV_TLSDESC_VALUE: | |
1462 | case BFD_RELOC_FRV_GOTTLSDESC12: | |
1463 | case BFD_RELOC_FRV_GOTTLSDESCHI: | |
1464 | case BFD_RELOC_FRV_GOTTLSDESCLO: | |
1465 | case BFD_RELOC_FRV_TLSMOFF12: | |
1466 | case BFD_RELOC_FRV_TLSMOFFHI: | |
1467 | case BFD_RELOC_FRV_TLSMOFFLO: | |
1468 | case BFD_RELOC_FRV_GOTTLSOFF12: | |
1469 | case BFD_RELOC_FRV_GOTTLSOFFHI: | |
1470 | case BFD_RELOC_FRV_GOTTLSOFFLO: | |
1471 | case BFD_RELOC_FRV_TLSOFF: | |
1472 | case BFD_RELOC_FRV_TLSDESC_RELAX: | |
1473 | case BFD_RELOC_FRV_GETTLSOFF_RELAX: | |
1474 | case BFD_RELOC_FRV_TLSOFF_RELAX: | |
455bde50 | 1475 | fixP->fx_addsy = abs_section_sym; |
90219bd0 AO |
1476 | break; |
1477 | } | |
1478 | else | |
1479 | switch (fixP->fx_cgen.opinfo) | |
1480 | { | |
1481 | case BFD_RELOC_FRV_GETTLSOFF: | |
1482 | case BFD_RELOC_FRV_TLSDESC_VALUE: | |
1483 | case BFD_RELOC_FRV_GOTTLSDESC12: | |
1484 | case BFD_RELOC_FRV_GOTTLSDESCHI: | |
1485 | case BFD_RELOC_FRV_GOTTLSDESCLO: | |
1486 | case BFD_RELOC_FRV_TLSMOFF12: | |
1487 | case BFD_RELOC_FRV_TLSMOFFHI: | |
1488 | case BFD_RELOC_FRV_TLSMOFFLO: | |
1489 | case BFD_RELOC_FRV_GOTTLSOFF12: | |
1490 | case BFD_RELOC_FRV_GOTTLSOFFHI: | |
1491 | case BFD_RELOC_FRV_GOTTLSOFFLO: | |
1492 | case BFD_RELOC_FRV_TLSOFF: | |
1493 | case BFD_RELOC_FRV_TLSDESC_RELAX: | |
1494 | case BFD_RELOC_FRV_GETTLSOFF_RELAX: | |
1495 | case BFD_RELOC_FRV_TLSOFF_RELAX: | |
1496 | /* Mark TLS symbols as such. */ | |
1497 | if (S_GET_SEGMENT (fixP->fx_addsy) != absolute_section) | |
1498 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
1499 | break; | |
99d09cdb AO |
1500 | } |
1501 | ||
55cf6793 | 1502 | gas_cgen_md_apply_fix (fixP, valP, seg); |
99d09cdb AO |
1503 | return; |
1504 | } | |
1505 | ||
0ebb9a87 DB |
1506 | \f |
1507 | /* Write a value out to the object file, using the appropriate endianness. */ | |
1508 | ||
1509 | void | |
5a49b8ac | 1510 | frv_md_number_to_chars (char *buf, valueT val, int n) |
0ebb9a87 DB |
1511 | { |
1512 | number_to_chars_bigendian (buf, val, n); | |
1513 | } | |
1514 | ||
6d4af3c2 | 1515 | const char * |
5a49b8ac | 1516 | md_atof (int type, char *litP, int *sizeP) |
0ebb9a87 | 1517 | { |
499ac353 | 1518 | return ieee_md_atof (type, litP, sizeP, TRUE); |
0ebb9a87 DB |
1519 | } |
1520 | ||
b34976b6 | 1521 | bfd_boolean |
5a49b8ac | 1522 | frv_fix_adjustable (fixS *fixP) |
0ebb9a87 DB |
1523 | { |
1524 | bfd_reloc_code_real_type reloc_type; | |
1525 | ||
1526 | if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED) | |
1527 | { | |
1528 | const CGEN_INSN *insn = NULL; | |
1529 | int opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED; | |
1530 | const CGEN_OPERAND *operand = cgen_operand_lookup_by_num(gas_cgen_cpu_desc, opindex); | |
1531 | reloc_type = md_cgen_lookup_reloc (insn, operand, fixP); | |
1532 | } | |
1533 | else | |
1534 | reloc_type = fixP->fx_r_type; | |
1535 | ||
0ebb9a87 DB |
1536 | /* We need the symbol name for the VTABLE entries */ |
1537 | if ( reloc_type == BFD_RELOC_VTABLE_INHERIT | |
1538 | || reloc_type == BFD_RELOC_VTABLE_ENTRY | |
1539 | || reloc_type == BFD_RELOC_FRV_GPREL12 | |
1540 | || reloc_type == BFD_RELOC_FRV_GPRELU12) | |
1541 | return 0; | |
1542 | ||
1543 | return 1; | |
1544 | } | |
1545 | ||
1546 | /* Allow user to set flags bits. */ | |
1547 | void | |
5a49b8ac | 1548 | frv_set_flags (int arg ATTRIBUTE_UNUSED) |
0ebb9a87 DB |
1549 | { |
1550 | flagword new_flags = get_absolute_expression (); | |
1551 | flagword new_mask = ~ (flagword)0; | |
1552 | ||
1553 | frv_user_set_flags_p = 1; | |
1554 | if (*input_line_pointer == ',') | |
1555 | { | |
1556 | ++input_line_pointer; | |
1557 | new_mask = get_absolute_expression (); | |
1558 | } | |
1559 | ||
1560 | frv_flags = (frv_flags & ~new_mask) | (new_flags & new_mask); | |
1561 | bfd_set_private_flags (stdoutput, frv_flags); | |
1562 | } | |
1563 | ||
1564 | /* Frv specific function to handle 4 byte initializations for pointers that are | |
1565 | considered 'safe' for use with pic support. Until frv_frob_file{,_section} | |
1566 | is run, we encode it a BFD_RELOC_CTOR, and it is turned back into a normal | |
1567 | BFD_RELOC_32 at that time. */ | |
1568 | ||
1569 | void | |
5a49b8ac | 1570 | frv_pic_ptr (int nbytes) |
0ebb9a87 DB |
1571 | { |
1572 | expressionS exp; | |
1573 | char *p; | |
1574 | ||
1575 | if (nbytes != 4) | |
1576 | abort (); | |
1577 | ||
1578 | #ifdef md_flush_pending_output | |
1579 | md_flush_pending_output (); | |
1580 | #endif | |
1581 | ||
1582 | if (is_it_end_of_statement ()) | |
1583 | { | |
1584 | demand_empty_rest_of_line (); | |
1585 | return; | |
1586 | } | |
1587 | ||
1588 | #ifdef md_cons_align | |
1589 | md_cons_align (nbytes); | |
1590 | #endif | |
1591 | ||
1592 | do | |
1593 | { | |
99d09cdb | 1594 | bfd_reloc_code_real_type reloc_type = BFD_RELOC_CTOR; |
3739860c | 1595 | |
99d09cdb AO |
1596 | if (strncasecmp (input_line_pointer, "funcdesc(", 9) == 0) |
1597 | { | |
1598 | input_line_pointer += 9; | |
1599 | expression (&exp); | |
1600 | if (*input_line_pointer == ')') | |
1601 | input_line_pointer++; | |
1602 | else | |
bd3ba5d1 | 1603 | as_bad (_("missing ')'")); |
99d09cdb AO |
1604 | reloc_type = BFD_RELOC_FRV_FUNCDESC; |
1605 | } | |
90219bd0 AO |
1606 | else if (strncasecmp (input_line_pointer, "tlsmoff(", 8) == 0) |
1607 | { | |
1608 | input_line_pointer += 8; | |
1609 | expression (&exp); | |
1610 | if (*input_line_pointer == ')') | |
1611 | input_line_pointer++; | |
1612 | else | |
bd3ba5d1 | 1613 | as_bad (_("missing ')'")); |
90219bd0 AO |
1614 | reloc_type = BFD_RELOC_FRV_TLSMOFF; |
1615 | } | |
99d09cdb AO |
1616 | else |
1617 | expression (&exp); | |
0ebb9a87 DB |
1618 | |
1619 | p = frag_more (4); | |
1620 | memset (p, 0, 4); | |
1621 | fix_new_exp (frag_now, p - frag_now->fr_literal, 4, &exp, 0, | |
99d09cdb | 1622 | reloc_type); |
0ebb9a87 DB |
1623 | } |
1624 | while (*input_line_pointer++ == ','); | |
1625 | ||
1626 | input_line_pointer--; /* Put terminator back into stream. */ | |
1627 | demand_empty_rest_of_line (); | |
1628 | } | |
1629 | ||
1630 | \f | |
1631 | ||
1632 | #ifdef DEBUG | |
1633 | #define DPRINTF1(A) fprintf (stderr, A) | |
1634 | #define DPRINTF2(A,B) fprintf (stderr, A, B) | |
1635 | #define DPRINTF3(A,B,C) fprintf (stderr, A, B, C) | |
1636 | ||
1637 | #else | |
1638 | #define DPRINTF1(A) | |
1639 | #define DPRINTF2(A,B) | |
1640 | #define DPRINTF3(A,B,C) | |
1641 | #endif | |
1642 | ||
1643 | /* Go through a the sections looking for relocations that are problematical for | |
1644 | pic. If not pic, just note that this object can't be linked with pic. If | |
1645 | it is pic, see if it needs to be marked so that it will be fixed up, or if | |
1646 | not possible, issue an error. */ | |
1647 | ||
1648 | static void | |
5a49b8ac | 1649 | frv_frob_file_section (bfd *abfd, asection *sec, void *ptr ATTRIBUTE_UNUSED) |
0ebb9a87 DB |
1650 | { |
1651 | segment_info_type *seginfo = seg_info (sec); | |
1652 | fixS *fixp; | |
1653 | CGEN_CPU_DESC cd = gas_cgen_cpu_desc; | |
1654 | flagword flags = bfd_get_section_flags (abfd, sec); | |
1655 | ||
1656 | /* Skip relocations in known sections (.ctors, .dtors, and .gcc_except_table) | |
1657 | since we can fix those up by hand. */ | |
1658 | int known_section_p = (sec->name | |
1659 | && sec->name[0] == '.' | |
1660 | && ((sec->name[1] == 'c' | |
1661 | && strcmp (sec->name, ".ctor") == 0) | |
1662 | || (sec->name[1] == 'd' | |
1663 | && strcmp (sec->name, ".dtor") == 0) | |
1664 | || (sec->name[1] == 'g' | |
1665 | && strcmp (sec->name, ".gcc_except_table") == 0))); | |
1666 | ||
1667 | DPRINTF3 ("\nFrv section %s%s\n", sec->name, (known_section_p) ? ", known section" : ""); | |
1668 | if ((flags & SEC_ALLOC) == 0) | |
1669 | { | |
1670 | DPRINTF1 ("\tSkipping non-loaded section\n"); | |
1671 | return; | |
1672 | } | |
1673 | ||
1674 | for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next) | |
1675 | { | |
1676 | symbolS *s = fixp->fx_addsy; | |
1677 | bfd_reloc_code_real_type reloc; | |
1678 | int non_pic_p; | |
1679 | int opindex; | |
1680 | const CGEN_OPERAND *operand; | |
1681 | const CGEN_INSN *insn = fixp->fx_cgen.insn; | |
1682 | ||
1683 | if (fixp->fx_done) | |
1684 | { | |
1685 | DPRINTF1 ("\tSkipping reloc that has already been done\n"); | |
1686 | continue; | |
1687 | } | |
1688 | ||
1689 | if (fixp->fx_pcrel) | |
1690 | { | |
1691 | DPRINTF1 ("\tSkipping reloc that is PC relative\n"); | |
1692 | continue; | |
1693 | } | |
1694 | ||
1695 | if (! s) | |
1696 | { | |
1697 | DPRINTF1 ("\tSkipping reloc without symbol\n"); | |
1698 | continue; | |
1699 | } | |
1700 | ||
1701 | if (fixp->fx_r_type < BFD_RELOC_UNUSED) | |
1702 | { | |
1703 | opindex = -1; | |
1704 | reloc = fixp->fx_r_type; | |
1705 | } | |
1706 | else | |
1707 | { | |
1708 | opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED; | |
1709 | operand = cgen_operand_lookup_by_num (cd, opindex); | |
1710 | reloc = md_cgen_lookup_reloc (insn, operand, fixp); | |
1711 | } | |
1712 | ||
1713 | DPRINTF3 ("\treloc %s\t%s", bfd_get_reloc_code_name (reloc), S_GET_NAME (s)); | |
1714 | ||
1715 | non_pic_p = 0; | |
1716 | switch (reloc) | |
1717 | { | |
1718 | default: | |
1719 | break; | |
1720 | ||
1721 | case BFD_RELOC_32: | |
1722 | /* Skip relocations in known sections (.ctors, .dtors, and | |
1723 | .gcc_except_table) since we can fix those up by hand. Also | |
1724 | skip forward references to constants. Also skip a difference | |
1725 | of two symbols, which still uses the BFD_RELOC_32 at this | |
1726 | point. */ | |
1727 | if (! known_section_p | |
1728 | && S_GET_SEGMENT (s) != absolute_section | |
1729 | && !fixp->fx_subsy | |
1730 | && (flags & (SEC_READONLY | SEC_CODE)) == 0) | |
1731 | { | |
1732 | non_pic_p = 1; | |
1733 | } | |
1734 | break; | |
1735 | ||
1736 | /* FIXME -- should determine if any of the GP relocation really uses | |
1737 | gr16 (which is not pic safe) or not. Right now, assume if we | |
1738 | aren't being compiled with -mpic, the usage is non pic safe, but | |
1739 | is safe with -mpic. */ | |
1740 | case BFD_RELOC_FRV_GPREL12: | |
1741 | case BFD_RELOC_FRV_GPRELU12: | |
1742 | case BFD_RELOC_FRV_GPREL32: | |
1743 | case BFD_RELOC_FRV_GPRELHI: | |
1744 | case BFD_RELOC_FRV_GPRELLO: | |
1745 | non_pic_p = ! frv_pic_p; | |
1746 | break; | |
1747 | ||
1748 | case BFD_RELOC_FRV_LO16: | |
1749 | case BFD_RELOC_FRV_HI16: | |
1750 | if (S_GET_SEGMENT (s) != absolute_section) | |
1751 | non_pic_p = 1; | |
1752 | break; | |
1753 | ||
1754 | case BFD_RELOC_VTABLE_INHERIT: | |
1755 | case BFD_RELOC_VTABLE_ENTRY: | |
1756 | non_pic_p = 1; | |
1757 | break; | |
1758 | ||
1759 | /* If this is a blessed BFD_RELOC_32, convert it back to the normal | |
1760 | relocation. */ | |
1761 | case BFD_RELOC_CTOR: | |
1762 | fixp->fx_r_type = BFD_RELOC_32; | |
1763 | break; | |
1764 | } | |
1765 | ||
1766 | if (non_pic_p) | |
1767 | { | |
1768 | DPRINTF1 (" (Non-pic relocation)\n"); | |
1769 | if (frv_pic_p) | |
1770 | as_warn_where (fixp->fx_file, fixp->fx_line, | |
1771 | _("Relocation %s is not safe for %s"), | |
1772 | bfd_get_reloc_code_name (reloc), frv_pic_flag); | |
1773 | ||
1774 | else if ((frv_flags & EF_FRV_NON_PIC_RELOCS) == 0) | |
1775 | { | |
1776 | frv_flags |= EF_FRV_NON_PIC_RELOCS; | |
1777 | bfd_set_private_flags (abfd, frv_flags); | |
1778 | } | |
1779 | } | |
1780 | #ifdef DEBUG | |
1781 | else | |
1782 | DPRINTF1 ("\n"); | |
1783 | #endif | |
1784 | } | |
1785 | } | |
1786 | ||
1787 | /* After all of the symbols have been adjusted, go over the file looking | |
1788 | for any relocations that pic won't support. */ | |
1789 | ||
1790 | void | |
5a49b8ac | 1791 | frv_frob_file (void) |
0ebb9a87 | 1792 | { |
5a49b8ac | 1793 | bfd_map_over_sections (stdoutput, frv_frob_file_section, (void *) 0); |
0ebb9a87 DB |
1794 | } |
1795 | ||
1796 | void | |
5a49b8ac | 1797 | frv_frob_label (symbolS *this_label) |
0ebb9a87 DB |
1798 | { |
1799 | struct vliw_insn_list *vliw_insn_list_entry; | |
1800 | ||
f2e25d93 | 1801 | dwarf2_emit_label (this_label); |
0ebb9a87 DB |
1802 | if (frv_mach != bfd_mach_frvtomcat) |
1803 | return; | |
1804 | ||
1805 | if (now_seg != text_section) | |
1806 | return; | |
1807 | ||
1808 | vliw_insn_list_entry = frv_insert_vliw_insn(DONT_COUNT); | |
1809 | vliw_insn_list_entry->type = VLIW_LABEL_TYPE; | |
3739860c | 1810 | vliw_insn_list_entry->sym = this_label; |
0ebb9a87 DB |
1811 | } |
1812 | ||
1813 | fixS * | |
5a49b8ac AM |
1814 | frv_cgen_record_fixup_exp (fragS *frag, |
1815 | int where, | |
1816 | const CGEN_INSN *insn, | |
1817 | int length, | |
1818 | const CGEN_OPERAND *operand, | |
1819 | int opinfo, | |
1820 | expressionS *exp) | |
0ebb9a87 DB |
1821 | { |
1822 | fixS * fixP = gas_cgen_record_fixup_exp (frag, where, insn, length, | |
1823 | operand, opinfo, exp); | |
1824 | ||
1825 | if (frv_mach == bfd_mach_frvtomcat | |
1826 | && current_vliw_insn | |
1827 | && current_vliw_insn->type == VLIW_BRANCH_TYPE | |
1828 | && exp != NULL) | |
1829 | current_vliw_insn->sym = exp->X_add_symbol; | |
3739860c | 1830 | |
0ebb9a87 DB |
1831 | return fixP; |
1832 | } |