]>
Commit | Line | Data |
---|---|---|
0ebb9a87 | 1 | /* tc-frv.c -- Assembler for the Fujitsu FRV. |
8ad7c533 | 2 | Copyright 2002, 2003, 2004, 2005, 2006 Free Software Foundation. |
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 | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GAS is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GAS; see the file COPYING. If not, write to | |
4b4da160 NC |
18 | the Free Software Foundation, 51 Franklin Street - Fifth Floor, |
19 | Boston, MA 02110-1301, USA. */ | |
0ebb9a87 | 20 | |
0ebb9a87 | 21 | #include "as.h" |
0ebb9a87 DB |
22 | #include "subsegs.h" |
23 | #include "symcat.h" | |
24 | #include "opcodes/frv-desc.h" | |
25 | #include "opcodes/frv-opc.h" | |
26 | #include "cgen.h" | |
27 | #include "libbfd.h" | |
28 | #include "elf/common.h" | |
29 | #include "elf/frv.h" | |
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 | ||
62 | /* We're going to use these in the fr_subtype field to mark | |
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[] = "#"; | |
99d09cdb | 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 */ | |
189 | static void frv_set_flags PARAMS ((int)); | |
190 | static void frv_pic_ptr PARAMS ((int)); | |
191 | static void frv_frob_file_section PARAMS ((bfd *, asection *, PTR)); | |
192 | ||
193 | /* The target specific pseudo-ops which we support. */ | |
194 | const pseudo_typeS md_pseudo_table[] = | |
195 | { | |
196 | { "eflags", frv_set_flags, 0 }, | |
197 | { "word", cons, 4 }, | |
198 | { "picptr", frv_pic_ptr, 4 }, | |
0ebb9a87 DB |
199 | { NULL, NULL, 0 } |
200 | }; | |
201 | ||
202 | \f | |
203 | #define FRV_SHORTOPTS "G:" | |
204 | const char * md_shortopts = FRV_SHORTOPTS; | |
205 | ||
206 | #define OPTION_GPR_32 (OPTION_MD_BASE) | |
207 | #define OPTION_GPR_64 (OPTION_MD_BASE + 1) | |
208 | #define OPTION_FPR_32 (OPTION_MD_BASE + 2) | |
209 | #define OPTION_FPR_64 (OPTION_MD_BASE + 3) | |
210 | #define OPTION_SOFT_FLOAT (OPTION_MD_BASE + 4) | |
211 | #define OPTION_DWORD_YES (OPTION_MD_BASE + 5) | |
212 | #define OPTION_DWORD_NO (OPTION_MD_BASE + 6) | |
213 | #define OPTION_DOUBLE (OPTION_MD_BASE + 7) | |
214 | #define OPTION_NO_DOUBLE (OPTION_MD_BASE + 8) | |
215 | #define OPTION_MEDIA (OPTION_MD_BASE + 9) | |
216 | #define OPTION_NO_MEDIA (OPTION_MD_BASE + 10) | |
217 | #define OPTION_CPU (OPTION_MD_BASE + 11) | |
218 | #define OPTION_PIC (OPTION_MD_BASE + 12) | |
219 | #define OPTION_BIGPIC (OPTION_MD_BASE + 13) | |
220 | #define OPTION_LIBPIC (OPTION_MD_BASE + 14) | |
221 | #define OPTION_MULADD (OPTION_MD_BASE + 15) | |
222 | #define OPTION_NO_MULADD (OPTION_MD_BASE + 16) | |
223 | #define OPTION_TOMCAT_DEBUG (OPTION_MD_BASE + 17) | |
224 | #define OPTION_TOMCAT_STATS (OPTION_MD_BASE + 18) | |
225 | #define OPTION_PACK (OPTION_MD_BASE + 19) | |
226 | #define OPTION_NO_PACK (OPTION_MD_BASE + 20) | |
99d09cdb | 227 | #define OPTION_FDPIC (OPTION_MD_BASE + 21) |
996991aa | 228 | #define OPTION_NOPIC (OPTION_MD_BASE + 22) |
0ebb9a87 DB |
229 | |
230 | struct option md_longopts[] = | |
231 | { | |
232 | { "mgpr-32", no_argument, NULL, OPTION_GPR_32 }, | |
233 | { "mgpr-64", no_argument, NULL, OPTION_GPR_64 }, | |
234 | { "mfpr-32", no_argument, NULL, OPTION_FPR_32 }, | |
235 | { "mfpr-64", no_argument, NULL, OPTION_FPR_64 }, | |
236 | { "mhard-float", no_argument, NULL, OPTION_FPR_64 }, | |
237 | { "msoft-float", no_argument, NULL, OPTION_SOFT_FLOAT }, | |
238 | { "mdword", no_argument, NULL, OPTION_DWORD_YES }, | |
239 | { "mno-dword", no_argument, NULL, OPTION_DWORD_NO }, | |
240 | { "mdouble", no_argument, NULL, OPTION_DOUBLE }, | |
241 | { "mno-double", no_argument, NULL, OPTION_NO_DOUBLE }, | |
242 | { "mmedia", no_argument, NULL, OPTION_MEDIA }, | |
243 | { "mno-media", no_argument, NULL, OPTION_NO_MEDIA }, | |
244 | { "mcpu", required_argument, NULL, OPTION_CPU }, | |
245 | { "mpic", no_argument, NULL, OPTION_PIC }, | |
246 | { "mPIC", no_argument, NULL, OPTION_BIGPIC }, | |
247 | { "mlibrary-pic", no_argument, NULL, OPTION_LIBPIC }, | |
248 | { "mmuladd", no_argument, NULL, OPTION_MULADD }, | |
249 | { "mno-muladd", no_argument, NULL, OPTION_NO_MULADD }, | |
250 | { "mtomcat-debug", no_argument, NULL, OPTION_TOMCAT_DEBUG }, | |
251 | { "mtomcat-stats", no_argument, NULL, OPTION_TOMCAT_STATS }, | |
252 | { "mpack", no_argument, NULL, OPTION_PACK }, | |
253 | { "mno-pack", no_argument, NULL, OPTION_NO_PACK }, | |
99d09cdb | 254 | { "mfdpic", no_argument, NULL, OPTION_FDPIC }, |
996991aa | 255 | { "mnopic", no_argument, NULL, OPTION_NOPIC }, |
0ebb9a87 DB |
256 | { NULL, no_argument, NULL, 0 }, |
257 | }; | |
258 | ||
259 | size_t md_longopts_size = sizeof (md_longopts); | |
260 | ||
261 | /* What value to give to bfd_set_gp_size. */ | |
262 | static int g_switch_value = 8; | |
263 | ||
264 | int | |
265 | md_parse_option (c, arg) | |
266 | int c; | |
267 | char * arg; | |
268 | { | |
269 | switch (c) | |
270 | { | |
271 | default: | |
272 | return 0; | |
273 | ||
274 | case 'G': | |
275 | g_switch_value = atoi (arg); | |
276 | if (! g_switch_value) | |
277 | frv_flags |= EF_FRV_G0; | |
278 | break; | |
279 | ||
280 | case OPTION_GPR_32: | |
281 | frv_flags = (frv_flags & ~EF_FRV_GPR_MASK) | EF_FRV_GPR_32; | |
282 | break; | |
283 | ||
284 | case OPTION_GPR_64: | |
285 | frv_flags = (frv_flags & ~EF_FRV_GPR_MASK) | EF_FRV_GPR_64; | |
286 | break; | |
287 | ||
288 | case OPTION_FPR_32: | |
289 | frv_flags = (frv_flags & ~EF_FRV_FPR_MASK) | EF_FRV_FPR_32; | |
290 | break; | |
291 | ||
292 | case OPTION_FPR_64: | |
293 | frv_flags = (frv_flags & ~EF_FRV_FPR_MASK) | EF_FRV_FPR_64; | |
294 | break; | |
295 | ||
296 | case OPTION_SOFT_FLOAT: | |
297 | frv_flags = (frv_flags & ~EF_FRV_FPR_MASK) | EF_FRV_FPR_NONE; | |
298 | break; | |
299 | ||
300 | case OPTION_DWORD_YES: | |
301 | frv_flags = (frv_flags & ~EF_FRV_DWORD_MASK) | EF_FRV_DWORD_YES; | |
302 | break; | |
303 | ||
304 | case OPTION_DWORD_NO: | |
305 | frv_flags = (frv_flags & ~EF_FRV_DWORD_MASK) | EF_FRV_DWORD_NO; | |
306 | break; | |
307 | ||
308 | case OPTION_DOUBLE: | |
309 | frv_flags |= EF_FRV_DOUBLE; | |
310 | break; | |
311 | ||
312 | case OPTION_NO_DOUBLE: | |
313 | frv_flags &= ~EF_FRV_DOUBLE; | |
314 | break; | |
315 | ||
316 | case OPTION_MEDIA: | |
317 | frv_flags |= EF_FRV_MEDIA; | |
318 | break; | |
319 | ||
320 | case OPTION_NO_MEDIA: | |
321 | frv_flags &= ~EF_FRV_MEDIA; | |
322 | break; | |
323 | ||
324 | case OPTION_MULADD: | |
325 | frv_flags |= EF_FRV_MULADD; | |
326 | break; | |
327 | ||
328 | case OPTION_NO_MULADD: | |
329 | frv_flags &= ~EF_FRV_MULADD; | |
330 | break; | |
331 | ||
332 | case OPTION_PACK: | |
333 | frv_flags &= ~EF_FRV_NOPACK; | |
334 | break; | |
335 | ||
336 | case OPTION_NO_PACK: | |
337 | frv_flags |= EF_FRV_NOPACK; | |
338 | break; | |
339 | ||
340 | case OPTION_CPU: | |
341 | { | |
342 | char *p; | |
343 | int cpu_flags = EF_FRV_CPU_GENERIC; | |
344 | ||
345 | /* Identify the processor type */ | |
346 | p = arg; | |
347 | if (strcmp (p, "frv") == 0) | |
348 | { | |
349 | cpu_flags = EF_FRV_CPU_GENERIC; | |
350 | frv_mach = bfd_mach_frv; | |
351 | } | |
352 | ||
353 | else if (strcmp (p, "fr500") == 0) | |
354 | { | |
355 | cpu_flags = EF_FRV_CPU_FR500; | |
356 | frv_mach = bfd_mach_fr500; | |
357 | } | |
358 | ||
1ae31fee DB |
359 | else if (strcmp (p, "fr550") == 0) |
360 | { | |
361 | cpu_flags = EF_FRV_CPU_FR550; | |
362 | frv_mach = bfd_mach_fr550; | |
363 | } | |
364 | ||
676a64f4 RS |
365 | else if (strcmp (p, "fr450") == 0) |
366 | { | |
367 | cpu_flags = EF_FRV_CPU_FR450; | |
368 | frv_mach = bfd_mach_fr450; | |
369 | } | |
370 | ||
371 | else if (strcmp (p, "fr405") == 0) | |
372 | { | |
373 | cpu_flags = EF_FRV_CPU_FR405; | |
374 | frv_mach = bfd_mach_fr400; | |
375 | fr400_audio = TRUE; | |
376 | } | |
377 | ||
0ebb9a87 DB |
378 | else if (strcmp (p, "fr400") == 0) |
379 | { | |
380 | cpu_flags = EF_FRV_CPU_FR400; | |
381 | frv_mach = bfd_mach_fr400; | |
676a64f4 | 382 | fr400_audio = FALSE; |
0ebb9a87 DB |
383 | } |
384 | ||
385 | else if (strcmp (p, "fr300") == 0) | |
386 | { | |
387 | cpu_flags = EF_FRV_CPU_FR300; | |
388 | frv_mach = bfd_mach_fr300; | |
389 | } | |
390 | ||
391 | else if (strcmp (p, "simple") == 0) | |
392 | { | |
393 | cpu_flags = EF_FRV_CPU_SIMPLE; | |
394 | frv_mach = bfd_mach_frvsimple; | |
395 | frv_flags |= EF_FRV_NOPACK; | |
396 | } | |
397 | ||
398 | else if (strcmp (p, "tomcat") == 0) | |
399 | { | |
400 | cpu_flags = EF_FRV_CPU_TOMCAT; | |
401 | frv_mach = bfd_mach_frvtomcat; | |
402 | } | |
403 | ||
404 | else | |
405 | { | |
406 | as_fatal ("Unknown cpu -mcpu=%s", arg); | |
407 | return 0; | |
408 | } | |
409 | ||
410 | frv_flags = (frv_flags & ~EF_FRV_CPU_MASK) | cpu_flags; | |
411 | } | |
412 | break; | |
413 | ||
414 | case OPTION_PIC: | |
415 | frv_flags |= EF_FRV_PIC; | |
416 | frv_pic_p = 1; | |
417 | frv_pic_flag = "-fpic"; | |
418 | break; | |
419 | ||
420 | case OPTION_BIGPIC: | |
421 | frv_flags |= EF_FRV_BIGPIC; | |
422 | frv_pic_p = 1; | |
423 | frv_pic_flag = "-fPIC"; | |
424 | break; | |
425 | ||
426 | case OPTION_LIBPIC: | |
427 | frv_flags |= (EF_FRV_LIBPIC | EF_FRV_G0); | |
428 | frv_pic_p = 1; | |
429 | frv_pic_flag = "-mlibrary-pic"; | |
430 | g_switch_value = 0; | |
431 | break; | |
432 | ||
99d09cdb AO |
433 | case OPTION_FDPIC: |
434 | frv_flags |= EF_FRV_FDPIC; | |
435 | frv_pic_flag = "-mfdpic"; | |
436 | break; | |
437 | ||
996991aa AO |
438 | case OPTION_NOPIC: |
439 | frv_flags &= ~(EF_FRV_FDPIC | EF_FRV_PIC | |
440 | | EF_FRV_BIGPIC | EF_FRV_LIBPIC); | |
441 | frv_pic_flag = 0; | |
442 | break; | |
443 | ||
0ebb9a87 DB |
444 | case OPTION_TOMCAT_DEBUG: |
445 | tomcat_debug = 1; | |
446 | break; | |
447 | ||
448 | case OPTION_TOMCAT_STATS: | |
449 | tomcat_stats = 1; | |
450 | break; | |
451 | } | |
452 | ||
453 | return 1; | |
454 | } | |
455 | ||
456 | void | |
457 | md_show_usage (stream) | |
458 | FILE * stream; | |
459 | { | |
460 | fprintf (stream, _("FRV specific command line options:\n")); | |
461 | fprintf (stream, _("-G n Data >= n bytes is in small data area\n")); | |
462 | fprintf (stream, _("-mgpr-32 Note 32 gprs are used\n")); | |
463 | fprintf (stream, _("-mgpr-64 Note 64 gprs are used\n")); | |
464 | fprintf (stream, _("-mfpr-32 Note 32 fprs are used\n")); | |
465 | fprintf (stream, _("-mfpr-64 Note 64 fprs are used\n")); | |
466 | fprintf (stream, _("-msoft-float Note software fp is used\n")); | |
467 | fprintf (stream, _("-mdword Note stack is aligned to a 8 byte boundary\n")); | |
468 | fprintf (stream, _("-mno-dword Note stack is aligned to a 4 byte boundary\n")); | |
469 | fprintf (stream, _("-mdouble Note fp double insns are used\n")); | |
470 | fprintf (stream, _("-mmedia Note media insns are used\n")); | |
471 | fprintf (stream, _("-mmuladd Note multiply add/subtract insns are used\n")); | |
472 | fprintf (stream, _("-mpack Note instructions are packed\n")); | |
473 | fprintf (stream, _("-mno-pack Do not allow instructions to be packed\n")); | |
474 | fprintf (stream, _("-mpic Note small position independent code\n")); | |
475 | fprintf (stream, _("-mPIC Note large position independent code\n")); | |
476 | fprintf (stream, _("-mlibrary-pic Compile library for large position indepedent code\n")); | |
996991aa AO |
477 | fprintf (stream, _("-mfdpic Assemble for the FDPIC ABI\n")); |
478 | fprintf (stream, _("-mnopic Disable -mpic, -mPIC, -mlibrary-pic and -mfdpic\n")); | |
676a64f4 | 479 | fprintf (stream, _("-mcpu={fr500|fr550|fr400|fr405|fr450|fr300|frv|simple|tomcat}\n")); |
0ebb9a87 DB |
480 | fprintf (stream, _(" Record the cpu type\n")); |
481 | fprintf (stream, _("-mtomcat-stats Print out stats for tomcat workarounds\n")); | |
482 | fprintf (stream, _("-mtomcat-debug Debug tomcat workarounds\n")); | |
483 | } | |
484 | ||
485 | \f | |
486 | void | |
487 | md_begin () | |
488 | { | |
489 | /* Initialize the `cgen' interface. */ | |
490 | ||
491 | /* Set the machine number and endian. */ | |
492 | gas_cgen_cpu_desc = frv_cgen_cpu_open (CGEN_CPU_OPEN_MACHS, 0, | |
493 | CGEN_CPU_OPEN_ENDIAN, | |
494 | CGEN_ENDIAN_BIG, | |
495 | CGEN_CPU_OPEN_END); | |
496 | frv_cgen_init_asm (gas_cgen_cpu_desc); | |
497 | ||
498 | /* This is a callback from cgen to gas to parse operands. */ | |
499 | cgen_set_parse_operand_fn (gas_cgen_cpu_desc, gas_cgen_parse_operand); | |
500 | ||
501 | /* Set the ELF flags if desired. */ | |
502 | if (frv_flags) | |
503 | bfd_set_private_flags (stdoutput, frv_flags); | |
504 | ||
505 | /* Set the machine type */ | |
506 | bfd_default_set_arch_mach (stdoutput, bfd_arch_frv, frv_mach); | |
507 | ||
508 | /* Set up gp size so we can put local common items in .sbss */ | |
509 | bfd_set_gp_size (stdoutput, g_switch_value); | |
510 | ||
511 | frv_vliw_reset (& vliw, frv_mach, frv_flags); | |
512 | } | |
513 | ||
996991aa AO |
514 | bfd_boolean |
515 | frv_md_fdpic_enabled (void) | |
516 | { | |
517 | return (frv_flags & EF_FRV_FDPIC) != 0; | |
518 | } | |
519 | ||
0ebb9a87 DB |
520 | int chain_num = 0; |
521 | ||
a08333bb AM |
522 | struct vliw_insn_list *frv_insert_vliw_insn PARAMS ((bfd_boolean)); |
523 | ||
0ebb9a87 DB |
524 | struct vliw_insn_list * |
525 | frv_insert_vliw_insn (count) | |
b34976b6 | 526 | bfd_boolean count; |
0ebb9a87 DB |
527 | { |
528 | struct vliw_insn_list *vliw_insn_list_entry; | |
529 | struct vliw_chain *vliw_chain_entry; | |
530 | ||
531 | if (current_vliw_chain == NULL) | |
532 | { | |
533 | vliw_chain_entry = (struct vliw_chain *) xmalloc (sizeof (struct vliw_chain)); | |
534 | vliw_chain_entry->insn_count = 0; | |
535 | vliw_chain_entry->insn_list = NULL; | |
536 | vliw_chain_entry->next = NULL; | |
537 | vliw_chain_entry->num = chain_num++; | |
538 | ||
539 | if (!vliw_chain_top) | |
540 | vliw_chain_top = vliw_chain_entry; | |
541 | current_vliw_chain = vliw_chain_entry; | |
542 | if (previous_vliw_chain) | |
543 | previous_vliw_chain->next = vliw_chain_entry; | |
544 | } | |
545 | ||
546 | vliw_insn_list_entry = (struct vliw_insn_list *) xmalloc (sizeof (struct vliw_insn_list)); | |
547 | vliw_insn_list_entry->type = VLIW_GENERIC_TYPE; | |
548 | vliw_insn_list_entry->insn = NULL; | |
549 | vliw_insn_list_entry->sym = NULL; | |
550 | vliw_insn_list_entry->snop_frag = NULL; | |
551 | vliw_insn_list_entry->dnop_frag = NULL; | |
552 | vliw_insn_list_entry->next = NULL; | |
553 | ||
554 | if (count) | |
555 | current_vliw_chain->insn_count++; | |
556 | ||
557 | if (current_vliw_insn) | |
558 | current_vliw_insn->next = vliw_insn_list_entry; | |
559 | current_vliw_insn = vliw_insn_list_entry; | |
560 | ||
561 | if (!current_vliw_chain->insn_list) | |
562 | current_vliw_chain->insn_list = current_vliw_insn; | |
563 | ||
564 | return vliw_insn_list_entry; | |
565 | } | |
566 | ||
567 | /* Identify the following cases: | |
568 | ||
569 | 1) A VLIW insn that contains both a branch and the branch destination. | |
570 | This requires the insertion of two vliw instructions before the | |
571 | branch. The first consists of two nops. The second consists of | |
572 | a single nop. | |
573 | ||
574 | 2) A single instruction VLIW insn which is the destination of a branch | |
575 | that is in the next VLIW insn. This requires the insertion of a vliw | |
576 | insn containing two nops before the branch. | |
577 | ||
578 | 3) A double instruction VLIW insn which contains the destination of a | |
579 | branch that is in the next VLIW insn. This requires the insertion of | |
580 | a VLIW insn containing a single nop before the branch. | |
581 | ||
582 | 4) A single instruction VLIW insn which contains branch destination (x), | |
583 | followed by a single instruction VLIW insn which does not contain | |
584 | the branch to (x), followed by a VLIW insn which does contain the branch | |
585 | to (x). This requires the insertion of a VLIW insn containing a single | |
586 | nop before the VLIW instruction containing the branch. | |
587 | ||
588 | */ | |
589 | #define FRV_IS_NOP(insn) (insn.buffer[0] == FRV_NOP_PACK || insn.buffer[0] == FRV_NOP_NOPACK) | |
590 | #define FRV_NOP_PACK 0x00880000 /* ori.p gr0,0,gr0 */ | |
591 | #define FRV_NOP_NOPACK 0x80880000 /* ori gr0,0,gr0 */ | |
592 | ||
593 | /* Check a vliw insn for an insn of type containing the sym passed in label_sym. */ | |
594 | ||
a08333bb AM |
595 | static struct vliw_insn_list *frv_find_in_vliw |
596 | PARAMS ((enum vliw_insn_type, struct vliw_chain *, symbolS *)); | |
597 | ||
0ebb9a87 DB |
598 | static struct vliw_insn_list * |
599 | frv_find_in_vliw (vliw_insn_type, this_chain, label_sym) | |
600 | enum vliw_insn_type vliw_insn_type; | |
601 | struct vliw_chain *this_chain; | |
602 | symbolS *label_sym; | |
603 | { | |
604 | ||
605 | struct vliw_insn_list *the_insn; | |
606 | ||
607 | if (!this_chain) | |
608 | return NULL; | |
609 | ||
610 | for (the_insn = this_chain->insn_list; the_insn; the_insn = the_insn->next) | |
611 | { | |
612 | if (the_insn->type == vliw_insn_type | |
613 | && the_insn->sym == label_sym) | |
614 | return the_insn; | |
615 | } | |
616 | ||
617 | return NULL; | |
618 | } | |
619 | ||
620 | enum vliw_nop_type | |
621 | { | |
622 | /* A Vliw insn containing a single nop insn. */ | |
623 | VLIW_SINGLE_NOP, | |
624 | ||
625 | /* A Vliw insn containing two nop insns. */ | |
626 | VLIW_DOUBLE_NOP, | |
627 | ||
628 | /* Two vliw insns. The first containing two nop insns. | |
629 | The second contain a single nop insn. */ | |
630 | VLIW_DOUBLE_THEN_SINGLE_NOP | |
631 | }; | |
632 | ||
a08333bb AM |
633 | static void frv_debug_tomcat PARAMS ((struct vliw_chain *)); |
634 | ||
0ebb9a87 DB |
635 | static void |
636 | frv_debug_tomcat (start_chain) | |
637 | struct vliw_chain *start_chain; | |
638 | { | |
639 | struct vliw_chain *this_chain; | |
640 | struct vliw_insn_list *this_insn; | |
641 | int i = 1; | |
642 | ||
643 | for (this_chain = start_chain; this_chain; this_chain = this_chain->next, i++) | |
644 | { | |
645 | fprintf (stderr, "\nVliw Insn #%d, #insns: %d\n", i, this_chain->insn_count); | |
646 | ||
647 | for (this_insn = this_chain->insn_list; this_insn; this_insn = this_insn->next) | |
648 | { | |
649 | if (this_insn->type == VLIW_LABEL_TYPE) | |
8ad7c533 | 650 | fprintf (stderr, "Label Value: %p\n", this_insn->sym); |
0ebb9a87 | 651 | else if (this_insn->type == VLIW_BRANCH_TYPE) |
8ad7c533 | 652 | fprintf (stderr, "%s to %p\n", this_insn->insn->base->name, this_insn->sym); |
0ebb9a87 | 653 | else if (this_insn->type == VLIW_BRANCH_HAS_NOPS) |
8ad7c533 | 654 | fprintf (stderr, "nop'd %s to %p\n", this_insn->insn->base->name, this_insn->sym); |
0ebb9a87 DB |
655 | else if (this_insn->type == VLIW_NOP_TYPE) |
656 | fprintf (stderr, "Nop\n"); | |
657 | else | |
658 | fprintf (stderr, " %s\n", this_insn->insn->base->name); | |
659 | } | |
660 | } | |
661 | } | |
662 | ||
a08333bb | 663 | static void frv_adjust_vliw_count PARAMS ((struct vliw_chain *)); |
0ebb9a87 DB |
664 | |
665 | static void | |
666 | frv_adjust_vliw_count (this_chain) | |
667 | struct vliw_chain *this_chain; | |
668 | { | |
669 | struct vliw_insn_list *this_insn; | |
670 | ||
671 | this_chain->insn_count = 0; | |
672 | ||
673 | for (this_insn = this_chain->insn_list; | |
674 | this_insn; | |
675 | this_insn = this_insn->next) | |
676 | { | |
677 | if (this_insn->type != VLIW_LABEL_TYPE) | |
678 | this_chain->insn_count++; | |
679 | } | |
680 | ||
681 | } | |
682 | ||
683 | /* Insert the desired nop combination in the vliw chain before insert_before_insn. | |
684 | Rechain the vliw insn. */ | |
685 | ||
a08333bb AM |
686 | static struct vliw_chain *frv_tomcat_shuffle |
687 | PARAMS ((enum vliw_nop_type, struct vliw_chain *, struct vliw_insn_list *)); | |
0ebb9a87 DB |
688 | |
689 | static struct vliw_chain * | |
690 | frv_tomcat_shuffle (this_nop_type, vliw_to_split, insert_before_insn) | |
691 | enum vliw_nop_type this_nop_type; | |
692 | struct vliw_chain *vliw_to_split; | |
693 | struct vliw_insn_list *insert_before_insn; | |
694 | { | |
695 | ||
b34976b6 | 696 | bfd_boolean pack_prev = FALSE; |
0ebb9a87 DB |
697 | struct vliw_chain *return_me = NULL; |
698 | struct vliw_insn_list *prev_insn = NULL; | |
699 | struct vliw_insn_list *curr_insn = vliw_to_split->insn_list; | |
700 | ||
701 | struct vliw_chain *double_nop = (struct vliw_chain *) xmalloc (sizeof (struct vliw_chain)); | |
702 | struct vliw_chain *single_nop = (struct vliw_chain *) xmalloc (sizeof (struct vliw_chain)); | |
703 | struct vliw_chain *second_part = (struct vliw_chain *) xmalloc (sizeof (struct vliw_chain)); | |
704 | struct vliw_chain *curr_vliw = vliw_chain_top; | |
705 | struct vliw_chain *prev_vliw = NULL; | |
706 | ||
707 | while (curr_insn && curr_insn != insert_before_insn) | |
708 | { | |
709 | /* We can't set the packing bit on a label. If we have the case | |
710 | label 1: | |
711 | label 2: | |
712 | label 3: | |
713 | branch that needs nops | |
714 | Then don't set pack bit later. */ | |
715 | ||
716 | if (curr_insn->type != VLIW_LABEL_TYPE) | |
b34976b6 | 717 | pack_prev = TRUE; |
0ebb9a87 DB |
718 | prev_insn = curr_insn; |
719 | curr_insn = curr_insn->next; | |
720 | } | |
721 | ||
722 | while (curr_vliw && curr_vliw != vliw_to_split) | |
723 | { | |
724 | prev_vliw = curr_vliw; | |
725 | curr_vliw = curr_vliw->next; | |
726 | } | |
727 | ||
728 | switch (this_nop_type) | |
729 | { | |
730 | case VLIW_SINGLE_NOP: | |
731 | if (!prev_insn) | |
732 | { | |
733 | /* Branch is first, Insert the NOP prior to this vliw insn. */ | |
734 | if (prev_vliw) | |
735 | prev_vliw->next = single_nop; | |
736 | else | |
737 | vliw_chain_top = single_nop; | |
738 | single_nop->next = vliw_to_split; | |
739 | vliw_to_split->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
740 | return_me = vliw_to_split; | |
741 | } | |
742 | else | |
743 | { | |
744 | /* Set the packing bit on the previous insn. */ | |
745 | if (pack_prev) | |
746 | { | |
2132e3a3 | 747 | char *buffer = prev_insn->address; |
0ebb9a87 DB |
748 | buffer[0] |= 0x80; |
749 | } | |
750 | /* The branch is in the middle. Split this vliw insn into first | |
751 | and second parts. Insert the NOP inbetween. */ | |
752 | ||
753 | second_part->insn_list = insert_before_insn; | |
754 | second_part->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
755 | second_part->next = vliw_to_split->next; | |
756 | frv_adjust_vliw_count (second_part); | |
757 | ||
758 | single_nop->next = second_part; | |
759 | ||
760 | vliw_to_split->next = single_nop; | |
761 | prev_insn->next = NULL; | |
762 | ||
763 | return_me = second_part; | |
764 | frv_adjust_vliw_count (vliw_to_split); | |
765 | } | |
766 | break; | |
767 | ||
768 | case VLIW_DOUBLE_NOP: | |
769 | if (!prev_insn) | |
770 | { | |
771 | /* Branch is first, Insert the NOP prior to this vliw insn. */ | |
772 | if (prev_vliw) | |
773 | prev_vliw->next = double_nop; | |
774 | else | |
775 | vliw_chain_top = double_nop; | |
776 | ||
777 | double_nop->next = vliw_to_split; | |
778 | return_me = vliw_to_split; | |
779 | vliw_to_split->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
780 | } | |
781 | else | |
782 | { | |
783 | /* Set the packing bit on the previous insn. */ | |
784 | if (pack_prev) | |
785 | { | |
2132e3a3 | 786 | char *buffer = prev_insn->address; |
0ebb9a87 DB |
787 | buffer[0] |= 0x80; |
788 | } | |
789 | ||
790 | /* The branch is in the middle. Split this vliw insn into first | |
791 | and second parts. Insert the NOP inbetween. */ | |
792 | second_part->insn_list = insert_before_insn; | |
793 | second_part->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
794 | second_part->next = vliw_to_split->next; | |
795 | frv_adjust_vliw_count (second_part); | |
796 | ||
797 | double_nop->next = second_part; | |
798 | ||
799 | vliw_to_split->next = single_nop; | |
800 | prev_insn->next = NULL; | |
801 | frv_adjust_vliw_count (vliw_to_split); | |
802 | ||
803 | return_me = second_part; | |
804 | } | |
805 | break; | |
806 | ||
807 | case VLIW_DOUBLE_THEN_SINGLE_NOP: | |
808 | double_nop->next = single_nop; | |
809 | double_nop->insn_count = 2; | |
810 | double_nop->insn_list = &double_nop_insn; | |
811 | single_nop->insn_count = 1; | |
812 | single_nop->insn_list = &single_nop_insn; | |
813 | ||
814 | if (!prev_insn) | |
815 | { | |
816 | /* The branch is the first insn in this vliw. Don't split the vliw. Insert | |
817 | the nops prior to this vliw. */ | |
818 | if (prev_vliw) | |
819 | prev_vliw->next = double_nop; | |
820 | else | |
821 | vliw_chain_top = double_nop; | |
822 | ||
823 | single_nop->next = vliw_to_split; | |
824 | return_me = vliw_to_split; | |
825 | vliw_to_split->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
826 | } | |
827 | else | |
828 | { | |
829 | /* Set the packing bit on the previous insn. */ | |
830 | if (pack_prev) | |
831 | { | |
2132e3a3 | 832 | char *buffer = prev_insn->address; |
0ebb9a87 DB |
833 | buffer[0] |= 0x80; |
834 | } | |
835 | ||
836 | /* The branch is in the middle of this vliw insn. Split into first and | |
837 | second parts. Insert the nop vliws in between. */ | |
838 | second_part->insn_list = insert_before_insn; | |
839 | second_part->insn_list->type = VLIW_BRANCH_HAS_NOPS; | |
840 | second_part->next = vliw_to_split->next; | |
841 | frv_adjust_vliw_count (second_part); | |
842 | ||
843 | single_nop->next = second_part; | |
844 | ||
845 | vliw_to_split->next = double_nop; | |
846 | prev_insn->next = NULL; | |
847 | frv_adjust_vliw_count (vliw_to_split); | |
848 | ||
849 | return_me = second_part; | |
850 | } | |
851 | break; | |
852 | } | |
853 | ||
854 | return return_me; | |
855 | } | |
856 | ||
a08333bb AM |
857 | static void frv_tomcat_analyze_vliw_chains PARAMS ((void)); |
858 | ||
0ebb9a87 DB |
859 | static void |
860 | frv_tomcat_analyze_vliw_chains () | |
861 | { | |
862 | struct vliw_chain *vliw1 = NULL; | |
863 | struct vliw_chain *vliw2 = NULL; | |
864 | struct vliw_chain *vliw3 = NULL; | |
865 | ||
866 | struct vliw_insn_list *this_insn = NULL; | |
867 | struct vliw_insn_list *temp_insn = NULL; | |
868 | ||
869 | /* We potentially need to look at three VLIW insns to determine if the | |
870 | workaround is required. Set them up. Ignore existing nops during analysis. */ | |
871 | ||
872 | #define FRV_SET_VLIW_WINDOW(VLIW1, VLIW2, VLIW3) \ | |
873 | if (VLIW1 && VLIW1->next) \ | |
874 | VLIW2 = VLIW1->next; \ | |
875 | else \ | |
876 | VLIW2 = NULL; \ | |
877 | if (VLIW2 && VLIW2->next) \ | |
878 | VLIW3 = VLIW2->next; \ | |
879 | else \ | |
880 | VLIW3 = NULL | |
881 | ||
882 | vliw1 = vliw_chain_top; | |
883 | ||
884 | workaround_top: | |
885 | ||
886 | FRV_SET_VLIW_WINDOW (vliw1, vliw2, vliw3); | |
887 | ||
888 | if (!vliw1) | |
889 | return; | |
890 | ||
891 | if (vliw1->insn_count == 1) | |
892 | { | |
893 | /* check vliw1 for a label. */ | |
894 | if (vliw1->insn_list->type == VLIW_LABEL_TYPE) | |
895 | { | |
896 | temp_insn = frv_find_in_vliw (VLIW_BRANCH_TYPE, vliw2, vliw1->insn_list->sym); | |
897 | if (temp_insn) | |
898 | { | |
899 | vliw1 = frv_tomcat_shuffle (VLIW_DOUBLE_NOP, vliw2, vliw1->insn_list); | |
900 | temp_insn->dnop_frag->fr_subtype = NOP_KEEP; | |
901 | vliw1 = vliw1->next; | |
902 | if (tomcat_stats) | |
903 | tomcat_doubles++; | |
904 | goto workaround_top; | |
905 | } | |
906 | else if (vliw2 | |
907 | && vliw2->insn_count == 1 | |
908 | && (temp_insn = frv_find_in_vliw (VLIW_BRANCH_TYPE, vliw3, vliw1->insn_list->sym)) != NULL) | |
909 | { | |
910 | temp_insn->snop_frag->fr_subtype = NOP_KEEP; | |
911 | vliw1 = frv_tomcat_shuffle (VLIW_SINGLE_NOP, vliw3, vliw3->insn_list); | |
912 | if (tomcat_stats) | |
913 | tomcat_singles++; | |
914 | goto workaround_top; | |
915 | } | |
916 | } | |
917 | } | |
918 | ||
919 | if (vliw1->insn_count == 2) | |
920 | { | |
921 | struct vliw_insn_list *this_insn; | |
922 | ||
923 | /* check vliw1 for a label. */ | |
924 | for (this_insn = vliw1->insn_list; this_insn; this_insn = this_insn->next) | |
925 | { | |
926 | if (this_insn->type == VLIW_LABEL_TYPE) | |
927 | { | |
a08333bb | 928 | if ((temp_insn = frv_find_in_vliw (VLIW_BRANCH_TYPE, vliw2, this_insn->sym)) != NULL) |
0ebb9a87 DB |
929 | { |
930 | temp_insn->snop_frag->fr_subtype = NOP_KEEP; | |
931 | vliw1 = frv_tomcat_shuffle (VLIW_SINGLE_NOP, vliw2, this_insn); | |
932 | if (tomcat_stats) | |
933 | tomcat_singles++; | |
934 | } | |
935 | else | |
936 | vliw1 = vliw1->next; | |
937 | goto workaround_top; | |
938 | } | |
939 | } | |
940 | } | |
941 | /* Examine each insn in this VLIW. Look for the workaround criteria. */ | |
942 | for (this_insn = vliw1->insn_list; this_insn; this_insn = this_insn->next) | |
943 | { | |
944 | /* Don't look at labels or nops. */ | |
945 | while (this_insn | |
946 | && (this_insn->type == VLIW_LABEL_TYPE | |
947 | || this_insn->type == VLIW_NOP_TYPE | |
948 | || this_insn->type == VLIW_BRANCH_HAS_NOPS)) | |
949 | this_insn = this_insn->next; | |
950 | ||
951 | if (!this_insn) | |
952 | { | |
953 | vliw1 = vliw2; | |
954 | goto workaround_top; | |
955 | } | |
956 | ||
957 | if (frv_is_branch_insn (this_insn->insn)) | |
958 | { | |
a08333bb | 959 | if ((temp_insn = frv_find_in_vliw (VLIW_LABEL_TYPE, vliw1, this_insn->sym)) != NULL) |
0ebb9a87 DB |
960 | { |
961 | /* Insert [nop/nop] [nop] before branch. */ | |
962 | this_insn->snop_frag->fr_subtype = NOP_KEEP; | |
963 | this_insn->dnop_frag->fr_subtype = NOP_KEEP; | |
964 | vliw1 = frv_tomcat_shuffle (VLIW_DOUBLE_THEN_SINGLE_NOP, vliw1, this_insn); | |
965 | goto workaround_top; | |
966 | } | |
967 | } | |
968 | ||
969 | ||
970 | } | |
971 | /* This vliw insn checks out okay. Take a look at the next one. */ | |
972 | vliw1 = vliw1->next; | |
973 | goto workaround_top; | |
974 | } | |
975 | ||
976 | void | |
977 | frv_tomcat_workaround () | |
978 | { | |
979 | if (frv_mach != bfd_mach_frvtomcat) | |
980 | return; | |
981 | ||
982 | if (tomcat_debug) | |
983 | frv_debug_tomcat (vliw_chain_top); | |
984 | ||
985 | frv_tomcat_analyze_vliw_chains (); | |
986 | ||
987 | if (tomcat_stats) | |
988 | { | |
989 | fprintf (stderr, "Inserted %d Single Nops\n", tomcat_singles); | |
990 | fprintf (stderr, "Inserted %d Double Nops\n", tomcat_doubles); | |
991 | } | |
992 | } | |
993 | ||
1ae31fee DB |
994 | static int |
995 | fr550_check_insn_acc_range (frv_insn *insn, int low, int hi) | |
996 | { | |
997 | int acc; | |
998 | switch (CGEN_INSN_NUM (insn->insn)) | |
999 | { | |
1000 | case FRV_INSN_MADDACCS: | |
1001 | case FRV_INSN_MSUBACCS: | |
1002 | case FRV_INSN_MDADDACCS: | |
1003 | case FRV_INSN_MDSUBACCS: | |
1004 | case FRV_INSN_MASACCS: | |
1005 | case FRV_INSN_MDASACCS: | |
1006 | acc = insn->fields.f_ACC40Si; | |
1007 | if (acc < low || acc > hi) | |
1008 | return 1; /* out of range */ | |
1009 | acc = insn->fields.f_ACC40Sk; | |
1010 | if (acc < low || acc > hi) | |
1011 | return 1; /* out of range */ | |
1012 | break; | |
1013 | case FRV_INSN_MMULHS: | |
1014 | case FRV_INSN_MMULHU: | |
1015 | case FRV_INSN_MMULXHS: | |
1016 | case FRV_INSN_MMULXHU: | |
1017 | case FRV_INSN_CMMULHS: | |
1018 | case FRV_INSN_CMMULHU: | |
1019 | case FRV_INSN_MQMULHS: | |
1020 | case FRV_INSN_MQMULHU: | |
1021 | case FRV_INSN_MQMULXHS: | |
1022 | case FRV_INSN_MQMULXHU: | |
1023 | case FRV_INSN_CMQMULHS: | |
1024 | case FRV_INSN_CMQMULHU: | |
1025 | case FRV_INSN_MMACHS: | |
1026 | case FRV_INSN_MMRDHS: | |
1027 | case FRV_INSN_CMMACHS: | |
1028 | case FRV_INSN_MQMACHS: | |
1029 | case FRV_INSN_CMQMACHS: | |
1030 | case FRV_INSN_MQXMACHS: | |
1031 | case FRV_INSN_MQXMACXHS: | |
1032 | case FRV_INSN_MQMACXHS: | |
1033 | case FRV_INSN_MCPXRS: | |
1034 | case FRV_INSN_MCPXIS: | |
1035 | case FRV_INSN_CMCPXRS: | |
1036 | case FRV_INSN_CMCPXIS: | |
1037 | case FRV_INSN_MQCPXRS: | |
1038 | case FRV_INSN_MQCPXIS: | |
1039 | acc = insn->fields.f_ACC40Sk; | |
1040 | if (acc < low || acc > hi) | |
1041 | return 1; /* out of range */ | |
1042 | break; | |
1043 | case FRV_INSN_MMACHU: | |
1044 | case FRV_INSN_MMRDHU: | |
1045 | case FRV_INSN_CMMACHU: | |
1046 | case FRV_INSN_MQMACHU: | |
1047 | case FRV_INSN_CMQMACHU: | |
1048 | case FRV_INSN_MCPXRU: | |
1049 | case FRV_INSN_MCPXIU: | |
1050 | case FRV_INSN_CMCPXRU: | |
1051 | case FRV_INSN_CMCPXIU: | |
1052 | case FRV_INSN_MQCPXRU: | |
1053 | case FRV_INSN_MQCPXIU: | |
1054 | acc = insn->fields.f_ACC40Uk; | |
1055 | if (acc < low || acc > hi) | |
1056 | return 1; /* out of range */ | |
1057 | break; | |
1058 | default: | |
1059 | break; | |
1060 | } | |
1061 | return 0; /* all is ok */ | |
1062 | } | |
1063 | ||
1064 | static int | |
1065 | fr550_check_acc_range (FRV_VLIW *vliw, frv_insn *insn) | |
1066 | { | |
1067 | switch ((*vliw->current_vliw)[vliw->next_slot - 1]) | |
1068 | { | |
1069 | case UNIT_FM0: | |
1070 | case UNIT_FM2: | |
1071 | return fr550_check_insn_acc_range (insn, 0, 3); | |
1072 | case UNIT_FM1: | |
1073 | case UNIT_FM3: | |
1074 | return fr550_check_insn_acc_range (insn, 4, 7); | |
1075 | default: | |
1076 | break; | |
1077 | } | |
1078 | return 0; /* all is ok */ | |
1079 | } | |
1080 | ||
676a64f4 RS |
1081 | /* Return true if the target implements instruction INSN. */ |
1082 | ||
1083 | static bfd_boolean | |
1084 | target_implements_insn_p (const CGEN_INSN *insn) | |
1085 | { | |
1086 | switch (frv_mach) | |
1087 | { | |
1088 | default: | |
1089 | /* bfd_mach_frv or generic. */ | |
1090 | return TRUE; | |
1091 | ||
1092 | case bfd_mach_fr300: | |
1093 | case bfd_mach_frvsimple: | |
1094 | return CGEN_INSN_MACH_HAS_P (insn, MACH_SIMPLE); | |
1095 | ||
1096 | case bfd_mach_fr400: | |
1097 | return ((fr400_audio || !CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_AUDIO)) | |
1098 | && CGEN_INSN_MACH_HAS_P (insn, MACH_FR400)); | |
1099 | ||
1100 | case bfd_mach_fr450: | |
1101 | return CGEN_INSN_MACH_HAS_P (insn, MACH_FR450); | |
1102 | ||
1103 | case bfd_mach_fr500: | |
1104 | return CGEN_INSN_MACH_HAS_P (insn, MACH_FR500); | |
1105 | ||
1106 | case bfd_mach_fr550: | |
1107 | return CGEN_INSN_MACH_HAS_P (insn, MACH_FR550); | |
1108 | } | |
1109 | } | |
1110 | ||
0ebb9a87 DB |
1111 | void |
1112 | md_assemble (str) | |
1113 | char * str; | |
1114 | { | |
1115 | frv_insn insn; | |
1116 | char *errmsg; | |
1117 | int packing_constraint; | |
1118 | finished_insnS finished_insn; | |
1119 | fragS *double_nop_frag = NULL; | |
1120 | fragS *single_nop_frag = NULL; | |
1121 | struct vliw_insn_list *vliw_insn_list_entry = NULL; | |
1122 | ||
1123 | /* Initialize GAS's cgen interface for a new instruction. */ | |
1124 | gas_cgen_init_parse (); | |
1125 | ||
99d09cdb AO |
1126 | memset (&insn, 0, sizeof (insn)); |
1127 | ||
0ebb9a87 DB |
1128 | insn.insn = frv_cgen_assemble_insn |
1129 | (gas_cgen_cpu_desc, str, & insn.fields, insn.buffer, &errmsg); | |
1130 | ||
1131 | if (!insn.insn) | |
1132 | { | |
1133 | as_bad (errmsg); | |
1134 | return; | |
1135 | } | |
1136 | ||
1137 | /* If the cpu is tomcat, then we need to insert nops to workaround | |
1138 | hardware limitations. We need to keep track of each vliw unit | |
1139 | and examine the length of the unit and the individual insns | |
1140 | within the unit to determine the number and location of the | |
1141 | required nops. */ | |
1142 | if (frv_mach == bfd_mach_frvtomcat) | |
1143 | { | |
1144 | /* If we've just finished a VLIW insn OR this is a branch, | |
1145 | then start up a new frag. Fill it with nops. We will get rid | |
1146 | of those that are not required after we've seen all of the | |
1147 | instructions but before we start resolving fixups. */ | |
1148 | if ( !FRV_IS_NOP (insn) | |
1149 | && (frv_is_branch_insn (insn.insn) || insn.fields.f_pack)) | |
1150 | { | |
1151 | char *buffer; | |
1152 | ||
1153 | frag_wane (frag_now); | |
1154 | frag_new (0); | |
1155 | double_nop_frag = frag_now; | |
1156 | buffer = frag_var (rs_machine_dependent, 8, 8, NOP_DELETE, NULL, 0, 0); | |
1157 | md_number_to_chars (buffer, FRV_NOP_PACK, 4); | |
1158 | md_number_to_chars (buffer+4, FRV_NOP_NOPACK, 4); | |
1159 | ||
1160 | frag_wane (frag_now); | |
1161 | frag_new (0); | |
1162 | single_nop_frag = frag_now; | |
1163 | buffer = frag_var (rs_machine_dependent, 4, 4, NOP_DELETE, NULL, 0, 0); | |
1164 | md_number_to_chars (buffer, FRV_NOP_NOPACK, 4); | |
1165 | } | |
1166 | ||
1167 | vliw_insn_list_entry = frv_insert_vliw_insn (DO_COUNT); | |
1168 | vliw_insn_list_entry->insn = insn.insn; | |
1169 | if (frv_is_branch_insn (insn.insn)) | |
1170 | vliw_insn_list_entry->type = VLIW_BRANCH_TYPE; | |
1171 | ||
1172 | if ( !FRV_IS_NOP (insn) | |
1173 | && (frv_is_branch_insn (insn.insn) || insn.fields.f_pack)) | |
1174 | { | |
1175 | vliw_insn_list_entry->snop_frag = single_nop_frag; | |
1176 | vliw_insn_list_entry->dnop_frag = double_nop_frag; | |
1177 | } | |
1178 | } | |
1179 | ||
1180 | /* Make sure that this insn does not violate the VLIW packing constraints. */ | |
1181 | /* -mno-pack disallows any packing whatsoever. */ | |
1182 | if (frv_flags & EF_FRV_NOPACK) | |
1183 | { | |
1184 | if (! insn.fields.f_pack) | |
1185 | { | |
1186 | as_bad (_("VLIW packing used for -mno-pack")); | |
1187 | return; | |
1188 | } | |
1189 | } | |
1190 | /* -mcpu=FRV is an idealized FR-V implementation that supports all of the | |
1191 | instructions, don't do vliw checking. */ | |
1192 | else if (frv_mach != bfd_mach_frv) | |
1193 | { | |
676a64f4 RS |
1194 | if (!target_implements_insn_p (insn.insn)) |
1195 | { | |
1196 | as_bad (_("Instruction not supported by this architecture")); | |
1197 | return; | |
1198 | } | |
0ebb9a87 | 1199 | packing_constraint = frv_vliw_add_insn (& vliw, insn.insn); |
1ae31fee DB |
1200 | if (frv_mach == bfd_mach_fr550 && ! packing_constraint) |
1201 | packing_constraint = fr550_check_acc_range (& vliw, & insn); | |
0ebb9a87 DB |
1202 | if (insn.fields.f_pack) |
1203 | frv_vliw_reset (& vliw, frv_mach, frv_flags); | |
1204 | if (packing_constraint) | |
1205 | { | |
1206 | as_bad (_("VLIW packing constraint violation")); | |
1207 | return; | |
1208 | } | |
1209 | } | |
1210 | ||
1211 | /* Doesn't really matter what we pass for RELAX_P here. */ | |
1212 | gas_cgen_finish_insn (insn.insn, insn.buffer, | |
1213 | CGEN_FIELDS_BITSIZE (& insn.fields), 1, &finished_insn); | |
1214 | ||
1215 | ||
1216 | /* If the cpu is tomcat, then we need to insert nops to workaround | |
1217 | hardware limitations. We need to keep track of each vliw unit | |
1218 | and examine the length of the unit and the individual insns | |
1219 | within the unit to determine the number and location of the | |
1220 | required nops. */ | |
1221 | if (frv_mach == bfd_mach_frvtomcat) | |
1222 | { | |
1223 | if (vliw_insn_list_entry) | |
1224 | vliw_insn_list_entry->address = finished_insn.addr; | |
1225 | else | |
1226 | abort(); | |
1227 | ||
1228 | if (insn.fields.f_pack) | |
1229 | { | |
1230 | /* We've completed a VLIW insn. */ | |
1231 | previous_vliw_chain = current_vliw_chain; | |
1232 | current_vliw_chain = NULL; | |
1233 | current_vliw_insn = NULL; | |
1234 | } | |
1235 | } | |
1236 | } | |
1237 | ||
1238 | /* The syntax in the manual says constants begin with '#'. | |
1239 | We just ignore it. */ | |
1240 | ||
1241 | void | |
1242 | md_operand (expressionP) | |
1243 | expressionS * expressionP; | |
1244 | { | |
1245 | if (* input_line_pointer == '#') | |
1246 | { | |
1247 | input_line_pointer ++; | |
1248 | expression (expressionP); | |
1249 | } | |
1250 | } | |
1251 | ||
1252 | valueT | |
1253 | md_section_align (segment, size) | |
1254 | segT segment; | |
1255 | valueT size; | |
1256 | { | |
1257 | int align = bfd_get_section_alignment (stdoutput, segment); | |
1258 | return ((size + (1 << align) - 1) & (-1 << align)); | |
1259 | } | |
1260 | ||
1261 | symbolS * | |
1262 | md_undefined_symbol (name) | |
1263 | char * name ATTRIBUTE_UNUSED; | |
1264 | { | |
1265 | return 0; | |
1266 | } | |
1267 | \f | |
1268 | /* Interface to relax_segment. */ | |
1269 | ||
1270 | /* FIXME: Build table by hand, get it working, then machine generate. */ | |
1271 | const relax_typeS md_relax_table[] = | |
1272 | { | |
1273 | {1, 1, 0, 0}, | |
1274 | {511 - 2 - 2, -512 - 2 + 2, 0, 2 }, | |
1275 | {0x2000000 - 1 - 2, -0x2000000 - 2, 2, 0 }, | |
1276 | {0x2000000 - 1 - 2, -0x2000000 - 2, 4, 0 } | |
1277 | }; | |
1278 | ||
1279 | long | |
1280 | frv_relax_frag (fragP, stretch) | |
1281 | fragS *fragP ATTRIBUTE_UNUSED; | |
1282 | long stretch ATTRIBUTE_UNUSED; | |
1283 | { | |
1284 | return 0; | |
1285 | } | |
1286 | ||
1287 | /* Return an initial guess of the length by which a fragment must grow to | |
1288 | hold a branch to reach its destination. | |
1289 | Also updates fr_type/fr_subtype as necessary. | |
1290 | ||
1291 | Called just before doing relaxation. | |
1292 | Any symbol that is now undefined will not become defined. | |
1293 | The guess for fr_var is ACTUALLY the growth beyond fr_fix. | |
1294 | Whatever we do to grow fr_fix or fr_var contributes to our returned value. | |
1295 | Although it may not be explicit in the frag, pretend fr_var starts with a | |
1296 | 0 value. */ | |
1297 | ||
1298 | int | |
1299 | md_estimate_size_before_relax (fragP, segment) | |
1300 | fragS * fragP; | |
1301 | segT segment ATTRIBUTE_UNUSED; | |
1302 | { | |
1303 | switch (fragP->fr_subtype) | |
1304 | { | |
1305 | case NOP_KEEP: | |
1306 | return fragP->fr_var; | |
1307 | ||
1308 | default: | |
1309 | case NOP_DELETE: | |
1310 | return 0; | |
1311 | } | |
1312 | } | |
1313 | ||
1314 | /* *fragP has been relaxed to its final size, and now needs to have | |
1315 | the bytes inside it modified to conform to the new size. | |
1316 | ||
1317 | Called after relaxation is finished. | |
1318 | fragP->fr_type == rs_machine_dependent. | |
1319 | fragP->fr_subtype is the subtype of what the address relaxed to. */ | |
1320 | ||
1321 | void | |
1322 | md_convert_frag (abfd, sec, fragP) | |
1323 | bfd * abfd ATTRIBUTE_UNUSED; | |
1324 | segT sec ATTRIBUTE_UNUSED; | |
1325 | fragS * fragP; | |
1326 | { | |
1327 | switch (fragP->fr_subtype) | |
1328 | { | |
1329 | default: | |
1330 | case NOP_DELETE: | |
1331 | return; | |
1332 | ||
1333 | case NOP_KEEP: | |
1334 | fragP->fr_fix = fragP->fr_var; | |
1335 | fragP->fr_var = 0; | |
1336 | return; | |
1337 | } | |
1338 | } | |
1339 | \f | |
1340 | /* Functions concerning relocs. */ | |
1341 | ||
1342 | /* The location from which a PC relative jump should be calculated, | |
1343 | given a PC relative reloc. */ | |
1344 | ||
1345 | long | |
1346 | md_pcrel_from_section (fixP, sec) | |
1347 | fixS * fixP; | |
a939d090 | 1348 | segT sec; |
0ebb9a87 | 1349 | { |
a939d090 AO |
1350 | if (TC_FORCE_RELOCATION (fixP) |
1351 | || (fixP->fx_addsy != (symbolS *) NULL | |
1352 | && S_GET_SEGMENT (fixP->fx_addsy) != sec)) | |
1353 | { | |
1354 | /* If we can't adjust this relocation, or if it references a | |
1355 | local symbol in a different section (which | |
1356 | TC_FORCE_RELOCATION can't check), let the linker figure it | |
1357 | out. */ | |
1358 | return 0; | |
1359 | } | |
0ebb9a87 DB |
1360 | |
1361 | return (fixP->fx_frag->fr_address + fixP->fx_where) & ~1; | |
1362 | } | |
1363 | ||
1364 | /* Return the bfd reloc type for OPERAND of INSN at fixup FIXP. | |
1365 | Returns BFD_RELOC_NONE if no reloc type can be found. | |
1366 | *FIXP may be modified if desired. */ | |
1367 | ||
1368 | bfd_reloc_code_real_type | |
1369 | md_cgen_lookup_reloc (insn, operand, fixP) | |
1370 | const CGEN_INSN * insn ATTRIBUTE_UNUSED; | |
1371 | const CGEN_OPERAND * operand; | |
1372 | fixS * fixP; | |
1373 | { | |
1374 | switch (operand->type) | |
1375 | { | |
1376 | case FRV_OPERAND_LABEL16: | |
b34976b6 | 1377 | fixP->fx_pcrel = TRUE; |
0ebb9a87 DB |
1378 | return BFD_RELOC_FRV_LABEL16; |
1379 | ||
1380 | case FRV_OPERAND_LABEL24: | |
b34976b6 | 1381 | fixP->fx_pcrel = TRUE; |
90219bd0 AO |
1382 | |
1383 | if (fixP->fx_cgen.opinfo != 0) | |
1384 | return fixP->fx_cgen.opinfo; | |
1385 | ||
0ebb9a87 DB |
1386 | return BFD_RELOC_FRV_LABEL24; |
1387 | ||
1388 | case FRV_OPERAND_UHI16: | |
1389 | case FRV_OPERAND_ULO16: | |
1390 | case FRV_OPERAND_SLO16: | |
90219bd0 AO |
1391 | case FRV_OPERAND_CALLANN: |
1392 | case FRV_OPERAND_LDANN: | |
1393 | case FRV_OPERAND_LDDANN: | |
0ebb9a87 DB |
1394 | /* The relocation type should be recorded in opinfo */ |
1395 | if (fixP->fx_cgen.opinfo != 0) | |
1396 | return fixP->fx_cgen.opinfo; | |
1397 | break; | |
1398 | ||
1399 | case FRV_OPERAND_D12: | |
1400 | case FRV_OPERAND_S12: | |
99d09cdb AO |
1401 | if (fixP->fx_cgen.opinfo != 0) |
1402 | return fixP->fx_cgen.opinfo; | |
1403 | ||
0ebb9a87 DB |
1404 | return BFD_RELOC_FRV_GPREL12; |
1405 | ||
1406 | case FRV_OPERAND_U12: | |
1407 | return BFD_RELOC_FRV_GPRELU12; | |
1408 | ||
1409 | default: | |
1410 | break; | |
1411 | } | |
1412 | return BFD_RELOC_NONE; | |
1413 | } | |
1414 | ||
1415 | ||
1416 | /* See whether we need to force a relocation into the output file. | |
1417 | This is used to force out switch and PC relative relocations when | |
1418 | relaxing. */ | |
1419 | ||
1420 | int | |
1421 | frv_force_relocation (fix) | |
1422 | fixS * fix; | |
1423 | { | |
90219bd0 | 1424 | switch (fix->fx_r_type < BFD_RELOC_UNUSED |
f17c130b | 1425 | ? (int) fix->fx_r_type |
90219bd0 AO |
1426 | : fix->fx_cgen.opinfo) |
1427 | { | |
1428 | case BFD_RELOC_FRV_GPREL12: | |
1429 | case BFD_RELOC_FRV_GPRELU12: | |
1430 | case BFD_RELOC_FRV_GPREL32: | |
1431 | case BFD_RELOC_FRV_GPRELHI: | |
1432 | case BFD_RELOC_FRV_GPRELLO: | |
1433 | case BFD_RELOC_FRV_GOT12: | |
1434 | case BFD_RELOC_FRV_GOTHI: | |
1435 | case BFD_RELOC_FRV_GOTLO: | |
1436 | case BFD_RELOC_FRV_FUNCDESC_VALUE: | |
1437 | case BFD_RELOC_FRV_FUNCDESC_GOTOFF12: | |
1438 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI: | |
1439 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO: | |
1440 | case BFD_RELOC_FRV_GOTOFF12: | |
1441 | case BFD_RELOC_FRV_GOTOFFHI: | |
1442 | case BFD_RELOC_FRV_GOTOFFLO: | |
1443 | case BFD_RELOC_FRV_GETTLSOFF: | |
1444 | case BFD_RELOC_FRV_TLSDESC_VALUE: | |
1445 | case BFD_RELOC_FRV_GOTTLSDESC12: | |
1446 | case BFD_RELOC_FRV_GOTTLSDESCHI: | |
1447 | case BFD_RELOC_FRV_GOTTLSDESCLO: | |
1448 | case BFD_RELOC_FRV_TLSMOFF12: | |
1449 | case BFD_RELOC_FRV_TLSMOFFHI: | |
1450 | case BFD_RELOC_FRV_TLSMOFFLO: | |
1451 | case BFD_RELOC_FRV_GOTTLSOFF12: | |
1452 | case BFD_RELOC_FRV_GOTTLSOFFHI: | |
1453 | case BFD_RELOC_FRV_GOTTLSOFFLO: | |
1454 | case BFD_RELOC_FRV_TLSOFF: | |
1455 | case BFD_RELOC_FRV_TLSDESC_RELAX: | |
1456 | case BFD_RELOC_FRV_GETTLSOFF_RELAX: | |
1457 | case BFD_RELOC_FRV_TLSOFF_RELAX: | |
1458 | return 1; | |
1459 | ||
1460 | default: | |
1461 | break; | |
1462 | } | |
0ebb9a87 | 1463 | |
ae6063d4 | 1464 | return generic_force_reloc (fix); |
0ebb9a87 | 1465 | } |
99d09cdb AO |
1466 | |
1467 | /* Apply a fixup that could be resolved within the assembler. */ | |
1468 | ||
1469 | void | |
55cf6793 | 1470 | md_apply_fix (fixP, valP, seg) |
99d09cdb AO |
1471 | fixS * fixP; |
1472 | valueT * valP; | |
1473 | segT seg; | |
1474 | { | |
1475 | if (fixP->fx_addsy == 0) | |
1476 | switch (fixP->fx_cgen.opinfo) | |
1477 | { | |
1478 | case BFD_RELOC_FRV_HI16: | |
1479 | *valP >>= 16; | |
1480 | /* Fall through. */ | |
1481 | case BFD_RELOC_FRV_LO16: | |
1482 | *valP &= 0xffff; | |
1483 | break; | |
90219bd0 AO |
1484 | |
1485 | /* We need relocations for these, even if their symbols reduce | |
1486 | to constants. */ | |
1487 | case BFD_RELOC_FRV_GPREL12: | |
1488 | case BFD_RELOC_FRV_GPRELU12: | |
1489 | case BFD_RELOC_FRV_GPREL32: | |
1490 | case BFD_RELOC_FRV_GPRELHI: | |
1491 | case BFD_RELOC_FRV_GPRELLO: | |
1492 | case BFD_RELOC_FRV_GOT12: | |
1493 | case BFD_RELOC_FRV_GOTHI: | |
1494 | case BFD_RELOC_FRV_GOTLO: | |
1495 | case BFD_RELOC_FRV_FUNCDESC_VALUE: | |
1496 | case BFD_RELOC_FRV_FUNCDESC_GOTOFF12: | |
1497 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI: | |
1498 | case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO: | |
1499 | case BFD_RELOC_FRV_GOTOFF12: | |
1500 | case BFD_RELOC_FRV_GOTOFFHI: | |
1501 | case BFD_RELOC_FRV_GOTOFFLO: | |
1502 | case BFD_RELOC_FRV_GETTLSOFF: | |
1503 | case BFD_RELOC_FRV_TLSDESC_VALUE: | |
1504 | case BFD_RELOC_FRV_GOTTLSDESC12: | |
1505 | case BFD_RELOC_FRV_GOTTLSDESCHI: | |
1506 | case BFD_RELOC_FRV_GOTTLSDESCLO: | |
1507 | case BFD_RELOC_FRV_TLSMOFF12: | |
1508 | case BFD_RELOC_FRV_TLSMOFFHI: | |
1509 | case BFD_RELOC_FRV_TLSMOFFLO: | |
1510 | case BFD_RELOC_FRV_GOTTLSOFF12: | |
1511 | case BFD_RELOC_FRV_GOTTLSOFFHI: | |
1512 | case BFD_RELOC_FRV_GOTTLSOFFLO: | |
1513 | case BFD_RELOC_FRV_TLSOFF: | |
1514 | case BFD_RELOC_FRV_TLSDESC_RELAX: | |
1515 | case BFD_RELOC_FRV_GETTLSOFF_RELAX: | |
1516 | case BFD_RELOC_FRV_TLSOFF_RELAX: | |
1517 | fixP->fx_addsy = expr_build_uconstant (0); | |
1518 | break; | |
1519 | } | |
1520 | else | |
1521 | switch (fixP->fx_cgen.opinfo) | |
1522 | { | |
1523 | case BFD_RELOC_FRV_GETTLSOFF: | |
1524 | case BFD_RELOC_FRV_TLSDESC_VALUE: | |
1525 | case BFD_RELOC_FRV_GOTTLSDESC12: | |
1526 | case BFD_RELOC_FRV_GOTTLSDESCHI: | |
1527 | case BFD_RELOC_FRV_GOTTLSDESCLO: | |
1528 | case BFD_RELOC_FRV_TLSMOFF12: | |
1529 | case BFD_RELOC_FRV_TLSMOFFHI: | |
1530 | case BFD_RELOC_FRV_TLSMOFFLO: | |
1531 | case BFD_RELOC_FRV_GOTTLSOFF12: | |
1532 | case BFD_RELOC_FRV_GOTTLSOFFHI: | |
1533 | case BFD_RELOC_FRV_GOTTLSOFFLO: | |
1534 | case BFD_RELOC_FRV_TLSOFF: | |
1535 | case BFD_RELOC_FRV_TLSDESC_RELAX: | |
1536 | case BFD_RELOC_FRV_GETTLSOFF_RELAX: | |
1537 | case BFD_RELOC_FRV_TLSOFF_RELAX: | |
1538 | /* Mark TLS symbols as such. */ | |
1539 | if (S_GET_SEGMENT (fixP->fx_addsy) != absolute_section) | |
1540 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
1541 | break; | |
99d09cdb AO |
1542 | } |
1543 | ||
55cf6793 | 1544 | gas_cgen_md_apply_fix (fixP, valP, seg); |
99d09cdb AO |
1545 | return; |
1546 | } | |
1547 | ||
0ebb9a87 DB |
1548 | \f |
1549 | /* Write a value out to the object file, using the appropriate endianness. */ | |
1550 | ||
1551 | void | |
1552 | frv_md_number_to_chars (buf, val, n) | |
1553 | char * buf; | |
1554 | valueT val; | |
1555 | int n; | |
1556 | { | |
1557 | number_to_chars_bigendian (buf, val, n); | |
1558 | } | |
1559 | ||
1560 | /* Turn a string in input_line_pointer into a floating point constant of type | |
1561 | type, and store the appropriate bytes in *litP. The number of LITTLENUMS | |
1562 | emitted is stored in *sizeP . An error message is returned, or NULL on OK. | |
1563 | */ | |
1564 | ||
1565 | /* Equal to MAX_PRECISION in atof-ieee.c */ | |
1566 | #define MAX_LITTLENUMS 6 | |
1567 | ||
1568 | char * | |
1569 | md_atof (type, litP, sizeP) | |
1570 | char type; | |
1571 | char * litP; | |
1572 | int * sizeP; | |
1573 | { | |
1574 | int i; | |
1575 | int prec; | |
1576 | LITTLENUM_TYPE words [MAX_LITTLENUMS]; | |
1577 | char * t; | |
0ebb9a87 DB |
1578 | |
1579 | switch (type) | |
1580 | { | |
1581 | case 'f': | |
1582 | case 'F': | |
1583 | case 's': | |
1584 | case 'S': | |
1585 | prec = 2; | |
1586 | break; | |
1587 | ||
1588 | case 'd': | |
1589 | case 'D': | |
1590 | case 'r': | |
1591 | case 'R': | |
1592 | prec = 4; | |
1593 | break; | |
1594 | ||
1595 | /* FIXME: Some targets allow other format chars for bigger sizes here. */ | |
1596 | ||
1597 | default: | |
1598 | * sizeP = 0; | |
1599 | return _("Bad call to md_atof()"); | |
1600 | } | |
1601 | ||
1602 | t = atof_ieee (input_line_pointer, type, words); | |
1603 | if (t) | |
1604 | input_line_pointer = t; | |
1605 | * sizeP = prec * sizeof (LITTLENUM_TYPE); | |
1606 | ||
1607 | for (i = 0; i < prec; i++) | |
1608 | { | |
1609 | md_number_to_chars (litP, (valueT) words[i], | |
1610 | sizeof (LITTLENUM_TYPE)); | |
1611 | litP += sizeof (LITTLENUM_TYPE); | |
1612 | } | |
1613 | ||
1614 | return 0; | |
1615 | } | |
1616 | ||
b34976b6 | 1617 | bfd_boolean |
0ebb9a87 DB |
1618 | frv_fix_adjustable (fixP) |
1619 | fixS * fixP; | |
1620 | { | |
1621 | bfd_reloc_code_real_type reloc_type; | |
1622 | ||
1623 | if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED) | |
1624 | { | |
1625 | const CGEN_INSN *insn = NULL; | |
1626 | int opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED; | |
1627 | const CGEN_OPERAND *operand = cgen_operand_lookup_by_num(gas_cgen_cpu_desc, opindex); | |
1628 | reloc_type = md_cgen_lookup_reloc (insn, operand, fixP); | |
1629 | } | |
1630 | else | |
1631 | reloc_type = fixP->fx_r_type; | |
1632 | ||
0ebb9a87 DB |
1633 | /* We need the symbol name for the VTABLE entries */ |
1634 | if ( reloc_type == BFD_RELOC_VTABLE_INHERIT | |
1635 | || reloc_type == BFD_RELOC_VTABLE_ENTRY | |
1636 | || reloc_type == BFD_RELOC_FRV_GPREL12 | |
1637 | || reloc_type == BFD_RELOC_FRV_GPRELU12) | |
1638 | return 0; | |
1639 | ||
1640 | return 1; | |
1641 | } | |
1642 | ||
1643 | /* Allow user to set flags bits. */ | |
1644 | void | |
1645 | frv_set_flags (arg) | |
1646 | int arg ATTRIBUTE_UNUSED; | |
1647 | { | |
1648 | flagword new_flags = get_absolute_expression (); | |
1649 | flagword new_mask = ~ (flagword)0; | |
1650 | ||
1651 | frv_user_set_flags_p = 1; | |
1652 | if (*input_line_pointer == ',') | |
1653 | { | |
1654 | ++input_line_pointer; | |
1655 | new_mask = get_absolute_expression (); | |
1656 | } | |
1657 | ||
1658 | frv_flags = (frv_flags & ~new_mask) | (new_flags & new_mask); | |
1659 | bfd_set_private_flags (stdoutput, frv_flags); | |
1660 | } | |
1661 | ||
1662 | /* Frv specific function to handle 4 byte initializations for pointers that are | |
1663 | considered 'safe' for use with pic support. Until frv_frob_file{,_section} | |
1664 | is run, we encode it a BFD_RELOC_CTOR, and it is turned back into a normal | |
1665 | BFD_RELOC_32 at that time. */ | |
1666 | ||
1667 | void | |
1668 | frv_pic_ptr (nbytes) | |
1669 | int nbytes; | |
1670 | { | |
1671 | expressionS exp; | |
1672 | char *p; | |
1673 | ||
1674 | if (nbytes != 4) | |
1675 | abort (); | |
1676 | ||
1677 | #ifdef md_flush_pending_output | |
1678 | md_flush_pending_output (); | |
1679 | #endif | |
1680 | ||
1681 | if (is_it_end_of_statement ()) | |
1682 | { | |
1683 | demand_empty_rest_of_line (); | |
1684 | return; | |
1685 | } | |
1686 | ||
1687 | #ifdef md_cons_align | |
1688 | md_cons_align (nbytes); | |
1689 | #endif | |
1690 | ||
1691 | do | |
1692 | { | |
99d09cdb AO |
1693 | bfd_reloc_code_real_type reloc_type = BFD_RELOC_CTOR; |
1694 | ||
1695 | if (strncasecmp (input_line_pointer, "funcdesc(", 9) == 0) | |
1696 | { | |
1697 | input_line_pointer += 9; | |
1698 | expression (&exp); | |
1699 | if (*input_line_pointer == ')') | |
1700 | input_line_pointer++; | |
1701 | else | |
1702 | as_bad ("missing ')'"); | |
1703 | reloc_type = BFD_RELOC_FRV_FUNCDESC; | |
1704 | } | |
90219bd0 AO |
1705 | else if (strncasecmp (input_line_pointer, "tlsmoff(", 8) == 0) |
1706 | { | |
1707 | input_line_pointer += 8; | |
1708 | expression (&exp); | |
1709 | if (*input_line_pointer == ')') | |
1710 | input_line_pointer++; | |
1711 | else | |
1712 | as_bad ("missing ')'"); | |
1713 | reloc_type = BFD_RELOC_FRV_TLSMOFF; | |
1714 | } | |
99d09cdb AO |
1715 | else |
1716 | expression (&exp); | |
0ebb9a87 DB |
1717 | |
1718 | p = frag_more (4); | |
1719 | memset (p, 0, 4); | |
1720 | fix_new_exp (frag_now, p - frag_now->fr_literal, 4, &exp, 0, | |
99d09cdb | 1721 | reloc_type); |
0ebb9a87 DB |
1722 | } |
1723 | while (*input_line_pointer++ == ','); | |
1724 | ||
1725 | input_line_pointer--; /* Put terminator back into stream. */ | |
1726 | demand_empty_rest_of_line (); | |
1727 | } | |
1728 | ||
1729 | \f | |
1730 | ||
1731 | #ifdef DEBUG | |
1732 | #define DPRINTF1(A) fprintf (stderr, A) | |
1733 | #define DPRINTF2(A,B) fprintf (stderr, A, B) | |
1734 | #define DPRINTF3(A,B,C) fprintf (stderr, A, B, C) | |
1735 | ||
1736 | #else | |
1737 | #define DPRINTF1(A) | |
1738 | #define DPRINTF2(A,B) | |
1739 | #define DPRINTF3(A,B,C) | |
1740 | #endif | |
1741 | ||
1742 | /* Go through a the sections looking for relocations that are problematical for | |
1743 | pic. If not pic, just note that this object can't be linked with pic. If | |
1744 | it is pic, see if it needs to be marked so that it will be fixed up, or if | |
1745 | not possible, issue an error. */ | |
1746 | ||
1747 | static void | |
1748 | frv_frob_file_section (abfd, sec, ptr) | |
1749 | bfd *abfd; | |
1750 | asection *sec; | |
1751 | PTR ptr ATTRIBUTE_UNUSED; | |
1752 | { | |
1753 | segment_info_type *seginfo = seg_info (sec); | |
1754 | fixS *fixp; | |
1755 | CGEN_CPU_DESC cd = gas_cgen_cpu_desc; | |
1756 | flagword flags = bfd_get_section_flags (abfd, sec); | |
1757 | ||
1758 | /* Skip relocations in known sections (.ctors, .dtors, and .gcc_except_table) | |
1759 | since we can fix those up by hand. */ | |
1760 | int known_section_p = (sec->name | |
1761 | && sec->name[0] == '.' | |
1762 | && ((sec->name[1] == 'c' | |
1763 | && strcmp (sec->name, ".ctor") == 0) | |
1764 | || (sec->name[1] == 'd' | |
1765 | && strcmp (sec->name, ".dtor") == 0) | |
1766 | || (sec->name[1] == 'g' | |
1767 | && strcmp (sec->name, ".gcc_except_table") == 0))); | |
1768 | ||
1769 | DPRINTF3 ("\nFrv section %s%s\n", sec->name, (known_section_p) ? ", known section" : ""); | |
1770 | if ((flags & SEC_ALLOC) == 0) | |
1771 | { | |
1772 | DPRINTF1 ("\tSkipping non-loaded section\n"); | |
1773 | return; | |
1774 | } | |
1775 | ||
1776 | for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next) | |
1777 | { | |
1778 | symbolS *s = fixp->fx_addsy; | |
1779 | bfd_reloc_code_real_type reloc; | |
1780 | int non_pic_p; | |
1781 | int opindex; | |
1782 | const CGEN_OPERAND *operand; | |
1783 | const CGEN_INSN *insn = fixp->fx_cgen.insn; | |
1784 | ||
1785 | if (fixp->fx_done) | |
1786 | { | |
1787 | DPRINTF1 ("\tSkipping reloc that has already been done\n"); | |
1788 | continue; | |
1789 | } | |
1790 | ||
1791 | if (fixp->fx_pcrel) | |
1792 | { | |
1793 | DPRINTF1 ("\tSkipping reloc that is PC relative\n"); | |
1794 | continue; | |
1795 | } | |
1796 | ||
1797 | if (! s) | |
1798 | { | |
1799 | DPRINTF1 ("\tSkipping reloc without symbol\n"); | |
1800 | continue; | |
1801 | } | |
1802 | ||
1803 | if (fixp->fx_r_type < BFD_RELOC_UNUSED) | |
1804 | { | |
1805 | opindex = -1; | |
1806 | reloc = fixp->fx_r_type; | |
1807 | } | |
1808 | else | |
1809 | { | |
1810 | opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED; | |
1811 | operand = cgen_operand_lookup_by_num (cd, opindex); | |
1812 | reloc = md_cgen_lookup_reloc (insn, operand, fixp); | |
1813 | } | |
1814 | ||
1815 | DPRINTF3 ("\treloc %s\t%s", bfd_get_reloc_code_name (reloc), S_GET_NAME (s)); | |
1816 | ||
1817 | non_pic_p = 0; | |
1818 | switch (reloc) | |
1819 | { | |
1820 | default: | |
1821 | break; | |
1822 | ||
1823 | case BFD_RELOC_32: | |
1824 | /* Skip relocations in known sections (.ctors, .dtors, and | |
1825 | .gcc_except_table) since we can fix those up by hand. Also | |
1826 | skip forward references to constants. Also skip a difference | |
1827 | of two symbols, which still uses the BFD_RELOC_32 at this | |
1828 | point. */ | |
1829 | if (! known_section_p | |
1830 | && S_GET_SEGMENT (s) != absolute_section | |
1831 | && !fixp->fx_subsy | |
1832 | && (flags & (SEC_READONLY | SEC_CODE)) == 0) | |
1833 | { | |
1834 | non_pic_p = 1; | |
1835 | } | |
1836 | break; | |
1837 | ||
1838 | /* FIXME -- should determine if any of the GP relocation really uses | |
1839 | gr16 (which is not pic safe) or not. Right now, assume if we | |
1840 | aren't being compiled with -mpic, the usage is non pic safe, but | |
1841 | is safe with -mpic. */ | |
1842 | case BFD_RELOC_FRV_GPREL12: | |
1843 | case BFD_RELOC_FRV_GPRELU12: | |
1844 | case BFD_RELOC_FRV_GPREL32: | |
1845 | case BFD_RELOC_FRV_GPRELHI: | |
1846 | case BFD_RELOC_FRV_GPRELLO: | |
1847 | non_pic_p = ! frv_pic_p; | |
1848 | break; | |
1849 | ||
1850 | case BFD_RELOC_FRV_LO16: | |
1851 | case BFD_RELOC_FRV_HI16: | |
1852 | if (S_GET_SEGMENT (s) != absolute_section) | |
1853 | non_pic_p = 1; | |
1854 | break; | |
1855 | ||
1856 | case BFD_RELOC_VTABLE_INHERIT: | |
1857 | case BFD_RELOC_VTABLE_ENTRY: | |
1858 | non_pic_p = 1; | |
1859 | break; | |
1860 | ||
1861 | /* If this is a blessed BFD_RELOC_32, convert it back to the normal | |
1862 | relocation. */ | |
1863 | case BFD_RELOC_CTOR: | |
1864 | fixp->fx_r_type = BFD_RELOC_32; | |
1865 | break; | |
1866 | } | |
1867 | ||
1868 | if (non_pic_p) | |
1869 | { | |
1870 | DPRINTF1 (" (Non-pic relocation)\n"); | |
1871 | if (frv_pic_p) | |
1872 | as_warn_where (fixp->fx_file, fixp->fx_line, | |
1873 | _("Relocation %s is not safe for %s"), | |
1874 | bfd_get_reloc_code_name (reloc), frv_pic_flag); | |
1875 | ||
1876 | else if ((frv_flags & EF_FRV_NON_PIC_RELOCS) == 0) | |
1877 | { | |
1878 | frv_flags |= EF_FRV_NON_PIC_RELOCS; | |
1879 | bfd_set_private_flags (abfd, frv_flags); | |
1880 | } | |
1881 | } | |
1882 | #ifdef DEBUG | |
1883 | else | |
1884 | DPRINTF1 ("\n"); | |
1885 | #endif | |
1886 | } | |
1887 | } | |
1888 | ||
1889 | /* After all of the symbols have been adjusted, go over the file looking | |
1890 | for any relocations that pic won't support. */ | |
1891 | ||
1892 | void | |
1893 | frv_frob_file () | |
1894 | { | |
1895 | bfd_map_over_sections (stdoutput, frv_frob_file_section, (PTR)0); | |
1896 | } | |
1897 | ||
1898 | void | |
1899 | frv_frob_label (this_label) | |
1900 | symbolS *this_label; | |
1901 | { | |
1902 | struct vliw_insn_list *vliw_insn_list_entry; | |
1903 | ||
1904 | if (frv_mach != bfd_mach_frvtomcat) | |
1905 | return; | |
1906 | ||
1907 | if (now_seg != text_section) | |
1908 | return; | |
1909 | ||
1910 | vliw_insn_list_entry = frv_insert_vliw_insn(DONT_COUNT); | |
1911 | vliw_insn_list_entry->type = VLIW_LABEL_TYPE; | |
1912 | vliw_insn_list_entry->sym = this_label; | |
1913 | } | |
1914 | ||
1915 | fixS * | |
1916 | frv_cgen_record_fixup_exp (frag, where, insn, length, operand, opinfo, exp) | |
1917 | fragS * frag; | |
1918 | int where; | |
1919 | const CGEN_INSN * insn; | |
1920 | int length; | |
1921 | const CGEN_OPERAND * operand; | |
1922 | int opinfo; | |
1923 | expressionS * exp; | |
1924 | { | |
1925 | fixS * fixP = gas_cgen_record_fixup_exp (frag, where, insn, length, | |
1926 | operand, opinfo, exp); | |
1927 | ||
1928 | if (frv_mach == bfd_mach_frvtomcat | |
1929 | && current_vliw_insn | |
1930 | && current_vliw_insn->type == VLIW_BRANCH_TYPE | |
1931 | && exp != NULL) | |
1932 | current_vliw_insn->sym = exp->X_add_symbol; | |
1933 | ||
1934 | return fixP; | |
1935 | } |