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f6bcefef | 1 | /* Main simulator entry points specific to the CRIS. |
1d506c26 | 2 | Copyright (C) 2004-2024 Free Software Foundation, Inc. |
f6bcefef HPN |
3 | Contributed by Axis Communications. |
4 | ||
5 | This file is part of the GNU simulators. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
4744ac1b JB |
9 | the Free Software Foundation; either version 3 of the License, or |
10 | (at your option) any later version. | |
f6bcefef HPN |
11 | |
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
4744ac1b JB |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
f6bcefef HPN |
19 | |
20 | /* Based on the fr30 file, mixing in bits from the i960 and pruning of | |
21 | dead code. */ | |
22 | ||
6df01ab8 MF |
23 | /* This must come before any other includes. */ |
24 | #include "defs.h" | |
25 | ||
8cfc9a18 MF |
26 | #include <stdlib.h> |
27 | #include <errno.h> | |
28 | #include <unistd.h> | |
29 | ||
f6bcefef HPN |
30 | #include "libiberty.h" |
31 | #include "bfd.h" | |
c217e3d5 | 32 | #include "bfd/elf-bfd.h" |
f6bcefef | 33 | |
8cfc9a18 | 34 | #include "sim/callback.h" |
f6bcefef | 35 | #include "sim-main.h" |
f6bcefef | 36 | #include "sim-options.h" |
072d63a8 | 37 | #include "sim-hw.h" |
f6bcefef | 38 | #include "dis-asm.h" |
c5a2e012 | 39 | #include "environ.h" |
f6bcefef | 40 | |
f6bcefef HPN |
41 | /* Used with get_progbounds to find out how much memory is needed for the |
42 | program. We don't want to allocate more, since that could mask | |
43 | invalid memory accesses program bugs. */ | |
44 | struct progbounds { | |
45 | USI startmem; | |
46 | USI endmem; | |
80e5c09e HPN |
47 | USI end_loadmem; |
48 | USI start_nonloadmem; | |
f6bcefef HPN |
49 | }; |
50 | ||
51 | static void free_state (SIM_DESC); | |
80e5c09e | 52 | static void get_progbounds_iterator (bfd *, asection *, void *); |
f6bcefef HPN |
53 | static SIM_RC cris_option_handler (SIM_DESC, sim_cpu *, int, char *, int); |
54 | ||
55 | /* Since we don't build the cgen-opcode table, we use the old | |
56 | disassembler. */ | |
57 | static CGEN_DISASSEMBLER cris_disassemble_insn; | |
58 | ||
59 | /* By default, we set up stack and environment variables like the Linux | |
60 | kernel. */ | |
61 | static char cris_bare_iron = 0; | |
62 | ||
63 | /* Whether 0x9000000xx have simulator-specific meanings. */ | |
aad3b3cb | 64 | char cris_have_900000xxif = 0; |
f6bcefef | 65 | |
c10b3605 HPN |
66 | /* Used to optionally override the default start address of the |
67 | simulation. */ | |
68 | static USI cris_start_address = 0xffffffffu; | |
69 | ||
70 | /* Used to optionally add offsets to the loaded image and its start | |
71 | address. (Not used for the interpreter of dynamically loaded | |
72 | programs or the DSO:s.) */ | |
73 | static int cris_program_offset = 0; | |
74 | ||
466b1d33 HPN |
75 | /* What to do when we face a more or less unknown syscall. */ |
76 | enum cris_unknown_syscall_action_type cris_unknown_syscall_action | |
77 | = CRIS_USYSC_MSG_STOP; | |
78 | ||
f6bcefef HPN |
79 | /* CRIS-specific options. */ |
80 | typedef enum { | |
81 | OPTION_CRIS_STATS = OPTION_START, | |
82 | OPTION_CRIS_TRACE, | |
83 | OPTION_CRIS_NAKED, | |
c10b3605 HPN |
84 | OPTION_CRIS_PROGRAM_OFFSET, |
85 | OPTION_CRIS_STARTADDR, | |
f6bcefef | 86 | OPTION_CRIS_900000XXIF, |
466b1d33 | 87 | OPTION_CRIS_UNKNOWN_SYSCALL |
f6bcefef HPN |
88 | } CRIS_OPTIONS; |
89 | ||
90 | static const OPTION cris_options[] = | |
91 | { | |
92 | { {"cris-cycles", required_argument, NULL, OPTION_CRIS_STATS}, | |
93 | '\0', "basic|unaligned|schedulable|all", | |
94 | "Dump execution statistics", | |
95 | cris_option_handler, NULL }, | |
96 | { {"cris-trace", required_argument, NULL, OPTION_CRIS_TRACE}, | |
97 | '\0', "basic", | |
98 | "Emit trace information while running", | |
99 | cris_option_handler, NULL }, | |
100 | { {"cris-naked", no_argument, NULL, OPTION_CRIS_NAKED}, | |
101 | '\0', NULL, "Don't set up stack and environment", | |
102 | cris_option_handler, NULL }, | |
e7e980c6 | 103 | #if WITH_HW |
f6bcefef HPN |
104 | { {"cris-900000xx", no_argument, NULL, OPTION_CRIS_900000XXIF}, |
105 | '\0', NULL, "Define addresses at 0x900000xx with simulator semantics", | |
106 | cris_option_handler, NULL }, | |
e7e980c6 | 107 | #endif |
466b1d33 HPN |
108 | { {"cris-unknown-syscall", required_argument, NULL, |
109 | OPTION_CRIS_UNKNOWN_SYSCALL}, | |
110 | '\0', "stop|enosys|enosys-quiet", "Action at an unknown system call", | |
111 | cris_option_handler, NULL }, | |
c10b3605 HPN |
112 | { {"cris-program-offset", required_argument, NULL, |
113 | OPTION_CRIS_PROGRAM_OFFSET}, | |
114 | '\0', "OFFSET", | |
115 | "Offset image addresses and default start address of a program", | |
116 | cris_option_handler }, | |
117 | { {"cris-start-address", required_argument, NULL, OPTION_CRIS_STARTADDR}, | |
118 | '\0', "ADDRESS", "Set start address", | |
119 | cris_option_handler }, | |
f6bcefef HPN |
120 | { {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL, NULL } |
121 | }; | |
122 | \f | |
f6bcefef HPN |
123 | /* Handle CRIS-specific options. */ |
124 | ||
125 | static SIM_RC | |
126 | cris_option_handler (SIM_DESC sd, sim_cpu *cpu ATTRIBUTE_UNUSED, int opt, | |
127 | char *arg, int is_command ATTRIBUTE_UNUSED) | |
128 | { | |
129 | /* The options are CRIS-specific, but cpu-specific option-handling is | |
130 | broken; required to being with "--cpu0-". We store the flags in an | |
131 | unused field in the global state structure and move the flags over | |
132 | to the module-specific CPU data when we store things in the | |
133 | cpu-specific structure. */ | |
134 | char *tracefp = STATE_TRACE_FLAGS (sd); | |
c10b3605 | 135 | char *chp = arg; |
f6bcefef HPN |
136 | |
137 | switch ((CRIS_OPTIONS) opt) | |
138 | { | |
139 | case OPTION_CRIS_STATS: | |
140 | if (strcmp (arg, "basic") == 0) | |
141 | *tracefp = FLAG_CRIS_MISC_PROFILE_SIMPLE; | |
142 | else if (strcmp (arg, "unaligned") == 0) | |
143 | *tracefp | |
144 | = (FLAG_CRIS_MISC_PROFILE_UNALIGNED | |
145 | | FLAG_CRIS_MISC_PROFILE_SIMPLE); | |
146 | else if (strcmp (arg, "schedulable") == 0) | |
147 | *tracefp | |
148 | = (FLAG_CRIS_MISC_PROFILE_SCHEDULABLE | |
149 | | FLAG_CRIS_MISC_PROFILE_SIMPLE); | |
150 | else if (strcmp (arg, "all") == 0) | |
151 | *tracefp = FLAG_CRIS_MISC_PROFILE_ALL; | |
152 | else | |
153 | { | |
466b1d33 HPN |
154 | /* Beware; the framework does not handle the error case; |
155 | we have to do it ourselves. */ | |
156 | sim_io_eprintf (sd, "Unknown option `--cris-cycles=%s'\n", arg); | |
f6bcefef HPN |
157 | return SIM_RC_FAIL; |
158 | } | |
159 | break; | |
160 | ||
161 | case OPTION_CRIS_TRACE: | |
162 | if (strcmp (arg, "basic") == 0) | |
163 | *tracefp |= FLAG_CRIS_MISC_PROFILE_XSIM_TRACE; | |
164 | else | |
165 | { | |
166 | sim_io_eprintf (sd, "Unknown option `--cris-trace=%s'\n", arg); | |
167 | return SIM_RC_FAIL; | |
168 | } | |
169 | break; | |
170 | ||
171 | case OPTION_CRIS_NAKED: | |
172 | cris_bare_iron = 1; | |
173 | break; | |
174 | ||
175 | case OPTION_CRIS_900000XXIF: | |
176 | cris_have_900000xxif = 1; | |
177 | break; | |
178 | ||
c10b3605 HPN |
179 | case OPTION_CRIS_STARTADDR: |
180 | errno = 0; | |
181 | cris_start_address = (USI) strtoul (chp, &chp, 0); | |
182 | ||
183 | if (errno != 0 || *chp != 0) | |
184 | { | |
185 | sim_io_eprintf (sd, "Invalid option `--cris-start-address=%s'\n", | |
186 | arg); | |
187 | return SIM_RC_FAIL; | |
188 | } | |
189 | break; | |
190 | ||
191 | case OPTION_CRIS_PROGRAM_OFFSET: | |
192 | errno = 0; | |
193 | cris_program_offset = (int) strtol (chp, &chp, 0); | |
194 | ||
195 | if (errno != 0 || *chp != 0) | |
196 | { | |
197 | sim_io_eprintf (sd, "Invalid option `--cris-program-offset=%s'\n", | |
198 | arg); | |
199 | return SIM_RC_FAIL; | |
200 | } | |
201 | break; | |
202 | ||
466b1d33 HPN |
203 | case OPTION_CRIS_UNKNOWN_SYSCALL: |
204 | if (strcmp (arg, "enosys") == 0) | |
205 | cris_unknown_syscall_action = CRIS_USYSC_MSG_ENOSYS; | |
206 | else if (strcmp (arg, "enosys-quiet") == 0) | |
207 | cris_unknown_syscall_action = CRIS_USYSC_QUIET_ENOSYS; | |
208 | else if (strcmp (arg, "stop") == 0) | |
209 | cris_unknown_syscall_action = CRIS_USYSC_MSG_STOP; | |
210 | else | |
211 | { | |
212 | sim_io_eprintf (sd, "Unknown option `--cris-unknown-syscall=%s'\n", | |
213 | arg); | |
214 | return SIM_RC_FAIL; | |
215 | } | |
216 | break; | |
217 | ||
f6bcefef HPN |
218 | default: |
219 | /* We'll actually never get here; the caller handles the error | |
220 | case. */ | |
221 | sim_io_eprintf (sd, "Unknown option `%s'\n", arg); | |
222 | return SIM_RC_FAIL; | |
223 | } | |
224 | ||
225 | /* Imply --profile-model=on. */ | |
226 | return sim_profile_set_option (sd, "-model", PROFILE_MODEL_IDX, "on"); | |
227 | } | |
228 | ||
80e5c09e HPN |
229 | /* An ELF-specific simplified ../common/sim-load.c:sim_load_file, |
230 | using the program headers, not sections, in order to make sure that | |
231 | the program headers themeselves are also loaded. The caller is | |
232 | responsible for asserting that ABFD is an ELF file. */ | |
233 | ||
234 | static bfd_boolean | |
235 | cris_load_elf_file (SIM_DESC sd, struct bfd *abfd, sim_write_fn do_write) | |
236 | { | |
237 | Elf_Internal_Phdr *phdr; | |
238 | int n_hdrs; | |
239 | int i; | |
240 | bfd_boolean verbose = STATE_OPEN_KIND (sd) == SIM_OPEN_DEBUG; | |
80e5c09e HPN |
241 | |
242 | phdr = elf_tdata (abfd)->phdr; | |
243 | n_hdrs = elf_elfheader (abfd)->e_phnum; | |
244 | ||
245 | /* We're only interested in PT_LOAD; all necessary information | |
246 | should be covered by that. */ | |
247 | for (i = 0; i < n_hdrs; i++) | |
248 | { | |
249 | bfd_byte *buf; | |
250 | bfd_vma lma = STATE_LOAD_AT_LMA_P (sd) | |
251 | ? phdr[i].p_paddr : phdr[i].p_vaddr; | |
252 | ||
253 | if (phdr[i].p_type != PT_LOAD) | |
254 | continue; | |
255 | ||
256 | buf = xmalloc (phdr[i].p_filesz); | |
257 | ||
258 | if (verbose) | |
5ee0bc23 | 259 | sim_io_printf (sd, |
29136be7 AM |
260 | "Loading segment at 0x%" PRIx64 ", " |
261 | "size 0x%" PRIx64 "\n", | |
262 | (uint64_t) lma, (uint64_t) phdr[i].p_filesz); | |
80e5c09e HPN |
263 | |
264 | if (bfd_seek (abfd, phdr[i].p_offset, SEEK_SET) != 0 | |
226f9f4f | 265 | || (bfd_read (buf, phdr[i].p_filesz, abfd) != phdr[i].p_filesz)) |
80e5c09e | 266 | { |
b3fbb288 | 267 | sim_io_eprintf (sd, |
29136be7 AM |
268 | "%s: could not read segment at 0x%" PRIx64 ", " |
269 | "size 0x%" PRIx64 "\n", | |
270 | STATE_MY_NAME (sd), (uint64_t) lma, | |
271 | (uint64_t) phdr[i].p_filesz); | |
80e5c09e HPN |
272 | free (buf); |
273 | return FALSE; | |
274 | } | |
275 | ||
276 | if (do_write (sd, lma, buf, phdr[i].p_filesz) != phdr[i].p_filesz) | |
277 | { | |
b3fbb288 | 278 | sim_io_eprintf (sd, |
29136be7 AM |
279 | "%s: could not load segment at 0x%" PRIx64 ", " |
280 | "size 0x%" PRIx64 "\n", | |
281 | STATE_MY_NAME (sd), (uint64_t) lma, | |
282 | (uint64_t) phdr[i].p_filesz); | |
80e5c09e HPN |
283 | free (buf); |
284 | return FALSE; | |
285 | } | |
286 | ||
287 | free (buf); | |
288 | } | |
289 | ||
290 | return TRUE; | |
291 | } | |
292 | ||
f6bcefef HPN |
293 | /* Cover function of sim_state_free to free the cpu buffers as well. */ |
294 | ||
295 | static void | |
296 | free_state (SIM_DESC sd) | |
297 | { | |
298 | if (STATE_MODULES (sd) != NULL) | |
299 | sim_module_uninstall (sd); | |
300 | sim_cpu_free_all (sd); | |
301 | sim_state_free (sd); | |
302 | } | |
303 | ||
c10b3605 HPN |
304 | /* Helper struct for cris_set_section_offset_iterator. */ |
305 | ||
306 | struct offsetinfo | |
307 | { | |
308 | SIM_DESC sd; | |
309 | int offset; | |
310 | }; | |
311 | ||
312 | /* BFD section iterator to offset the LMA and VMA. */ | |
313 | ||
314 | static void | |
315 | cris_set_section_offset_iterator (bfd *abfd, asection *s, void *vp) | |
316 | { | |
317 | struct offsetinfo *p = (struct offsetinfo *) vp; | |
318 | SIM_DESC sd = p->sd; | |
319 | int offset = p->offset; | |
320 | ||
fd361982 | 321 | if ((bfd_section_flags (s) & SEC_ALLOC)) |
c10b3605 | 322 | { |
fd361982 | 323 | bfd_vma vma = bfd_section_vma (s); |
c10b3605 | 324 | |
fd361982 | 325 | bfd_set_section_vma (s, vma + offset); |
c10b3605 HPN |
326 | } |
327 | ||
328 | /* This seems clumsy and inaccurate, but let's stick to doing it the | |
329 | same way as sim_analyze_program for consistency. */ | |
fd361982 AM |
330 | if (strcmp (bfd_section_name (s), ".text") == 0) |
331 | STATE_TEXT_START (sd) = bfd_section_vma (s); | |
c10b3605 HPN |
332 | } |
333 | ||
334 | /* Adjust the start-address, LMA and VMA of a SD. Must be called | |
335 | after sim_analyze_program. */ | |
336 | ||
337 | static void | |
338 | cris_offset_sections (SIM_DESC sd, int offset) | |
339 | { | |
c10b3605 | 340 | struct bfd *abfd = STATE_PROG_BFD (sd); |
c10b3605 HPN |
341 | struct offsetinfo oi; |
342 | ||
343 | /* Only happens for usage error. */ | |
344 | if (abfd == NULL) | |
345 | return; | |
346 | ||
347 | oi.sd = sd; | |
348 | oi.offset = offset; | |
349 | ||
350 | bfd_map_over_sections (abfd, cris_set_section_offset_iterator, &oi); | |
4125d647 | 351 | bfd_set_start_address (abfd, bfd_get_start_address (abfd) + offset); |
c10b3605 HPN |
352 | |
353 | STATE_START_ADDR (sd) = bfd_get_start_address (abfd); | |
354 | } | |
355 | ||
80e5c09e HPN |
356 | /* BFD section iterator to find the highest and lowest allocated and |
357 | non-allocated section addresses (plus one). */ | |
f6bcefef | 358 | |
80e5c09e HPN |
359 | static void |
360 | get_progbounds_iterator (bfd *abfd ATTRIBUTE_UNUSED, asection *s, void *vp) | |
f6bcefef HPN |
361 | { |
362 | struct progbounds *pbp = (struct progbounds *) vp; | |
363 | ||
fd361982 | 364 | if ((bfd_section_flags (s) & SEC_ALLOC)) |
f6bcefef | 365 | { |
fd361982 AM |
366 | bfd_size_type sec_size = bfd_section_size (s); |
367 | bfd_size_type sec_start = bfd_section_vma (s); | |
f6bcefef HPN |
368 | bfd_size_type sec_end = sec_start + sec_size; |
369 | ||
370 | if (sec_end > pbp->endmem) | |
371 | pbp->endmem = sec_end; | |
372 | ||
373 | if (sec_start < pbp->startmem) | |
374 | pbp->startmem = sec_start; | |
80e5c09e | 375 | |
fd361982 | 376 | if ((bfd_section_flags (s) & SEC_LOAD)) |
80e5c09e HPN |
377 | { |
378 | if (sec_end > pbp->end_loadmem) | |
379 | pbp->end_loadmem = sec_end; | |
380 | } | |
381 | else if (sec_start < pbp->start_nonloadmem) | |
382 | pbp->start_nonloadmem = sec_start; | |
383 | } | |
384 | } | |
385 | ||
386 | /* Get the program boundaries. Because not everything is covered by | |
387 | sections in ELF, notably the program headers, we use the program | |
388 | headers instead. */ | |
389 | ||
390 | static void | |
391 | cris_get_progbounds (struct bfd *abfd, struct progbounds *pbp) | |
392 | { | |
393 | Elf_Internal_Phdr *phdr; | |
394 | int n_hdrs; | |
395 | int i; | |
396 | ||
397 | pbp->startmem = 0xffffffff; | |
398 | pbp->endmem = 0; | |
399 | pbp->end_loadmem = 0; | |
400 | pbp->start_nonloadmem = 0xffffffff; | |
401 | ||
402 | /* In case we're ever used for something other than ELF, use the | |
403 | generic method. */ | |
404 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
405 | { | |
406 | bfd_map_over_sections (abfd, get_progbounds_iterator, pbp); | |
407 | return; | |
408 | } | |
409 | ||
410 | phdr = elf_tdata (abfd)->phdr; | |
411 | n_hdrs = elf_elfheader (abfd)->e_phnum; | |
412 | ||
413 | /* We're only interested in PT_LOAD; all necessary information | |
414 | should be covered by that. */ | |
415 | for (i = 0; i < n_hdrs; i++) | |
416 | { | |
417 | if (phdr[i].p_type != PT_LOAD) | |
418 | continue; | |
419 | ||
420 | if (phdr[i].p_paddr < pbp->startmem) | |
421 | pbp->startmem = phdr[i].p_paddr; | |
422 | ||
423 | if (phdr[i].p_paddr + phdr[i].p_memsz > pbp->endmem) | |
424 | pbp->endmem = phdr[i].p_paddr + phdr[i].p_memsz; | |
425 | ||
426 | if (phdr[i].p_paddr + phdr[i].p_filesz > pbp->end_loadmem) | |
427 | pbp->end_loadmem = phdr[i].p_paddr + phdr[i].p_filesz; | |
428 | ||
429 | if (phdr[i].p_memsz > phdr[i].p_filesz | |
430 | && phdr[i].p_paddr + phdr[i].p_filesz < pbp->start_nonloadmem) | |
431 | pbp->start_nonloadmem = phdr[i].p_paddr + phdr[i].p_filesz; | |
432 | } | |
433 | } | |
434 | ||
435 | /* Parameter communication by static variables, hmm... Oh well, for | |
436 | simplicity. */ | |
437 | static bfd_vma exec_load_addr; | |
438 | static bfd_vma interp_load_addr; | |
439 | static bfd_vma interp_start_addr; | |
440 | ||
441 | /* Supposed to mimic Linux' "NEW_AUX_ENT (AT_PHDR, load_addr + exec->e_phoff)". */ | |
442 | ||
443 | static USI | |
444 | aux_ent_phdr (struct bfd *ebfd) | |
445 | { | |
446 | return elf_elfheader (ebfd)->e_phoff + exec_load_addr; | |
447 | } | |
448 | ||
449 | /* We just pass on the header info; we don't have our own idea of the | |
450 | program header entry size. */ | |
451 | ||
452 | static USI | |
453 | aux_ent_phent (struct bfd *ebfd) | |
454 | { | |
455 | return elf_elfheader (ebfd)->e_phentsize; | |
456 | } | |
457 | ||
458 | /* Like "NEW_AUX_ENT(AT_PHNUM, exec->e_phnum)". */ | |
459 | ||
460 | static USI | |
461 | aux_ent_phnum (struct bfd *ebfd) | |
462 | { | |
463 | return elf_elfheader (ebfd)->e_phnum; | |
464 | } | |
465 | ||
466 | /* Like "NEW_AUX_ENT(AT_BASE, interp_load_addr)". */ | |
467 | ||
468 | static USI | |
469 | aux_ent_base (struct bfd *ebfd) | |
470 | { | |
471 | return interp_load_addr; | |
472 | } | |
473 | ||
474 | /* Like "NEW_AUX_ENT(AT_ENTRY, exec->e_entry)". */ | |
475 | ||
476 | static USI | |
477 | aux_ent_entry (struct bfd *ebfd) | |
478 | { | |
479 | ASSERT (elf_elfheader (ebfd)->e_entry == bfd_get_start_address (ebfd)); | |
480 | return elf_elfheader (ebfd)->e_entry; | |
481 | } | |
482 | ||
483 | /* Helper for cris_handle_interpreter: like sim_write, but load at | |
484 | interp_load_addr offset. */ | |
485 | ||
63fd5b5d MF |
486 | static uint64_t |
487 | cris_write_interp (SIM_DESC sd, uint64_t mem, const void *buf, uint64_t length) | |
80e5c09e HPN |
488 | { |
489 | return sim_write (sd, mem + interp_load_addr, buf, length); | |
490 | } | |
491 | ||
492 | /* Cater to the presence of an interpreter: load it and set | |
493 | interp_start_addr. Return FALSE if there was an error, TRUE if | |
494 | everything went fine, including an interpreter being absent and | |
495 | the program being in a non-ELF format. */ | |
496 | ||
497 | static bfd_boolean | |
498 | cris_handle_interpreter (SIM_DESC sd, struct bfd *abfd) | |
499 | { | |
500 | int i, n_hdrs; | |
80e5c09e HPN |
501 | char *interp = NULL; |
502 | struct bfd *ibfd; | |
503 | bfd_boolean ok = FALSE; | |
504 | Elf_Internal_Phdr *phdr; | |
505 | ||
506 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) | |
507 | return TRUE; | |
508 | ||
509 | phdr = elf_tdata (abfd)->phdr; | |
510 | n_hdrs = aux_ent_phnum (abfd); | |
511 | ||
512 | /* Check the program headers for presence of an interpreter. */ | |
513 | for (i = 0; i < n_hdrs; i++) | |
514 | { | |
515 | int interplen; | |
4125d647 | 516 | bfd_size_type interpsiz; |
80e5c09e HPN |
517 | struct progbounds interp_bounds; |
518 | ||
519 | if (phdr[i].p_type != PT_INTERP) | |
520 | continue; | |
521 | ||
522 | /* Get the name of the interpreter, prepended with the sysroot | |
523 | (empty if absent). */ | |
524 | interplen = phdr[i].p_filesz; | |
525 | interp = xmalloc (interplen + strlen (simulator_sysroot)); | |
526 | strcpy (interp, simulator_sysroot); | |
527 | ||
528 | /* Read in the name. */ | |
529 | if (bfd_seek (abfd, phdr[i].p_offset, SEEK_SET) != 0 | |
226f9f4f | 530 | || (bfd_read (interp + strlen (simulator_sysroot), interplen, abfd) |
80e5c09e HPN |
531 | != interplen)) |
532 | goto interpname_failed; | |
533 | ||
534 | /* Like Linux, require the string to be 0-terminated. */ | |
535 | if (interp[interplen + strlen (simulator_sysroot) - 1] != 0) | |
536 | goto interpname_failed; | |
537 | ||
538 | /* Inspect the interpreter. */ | |
539 | ibfd = bfd_openr (interp, STATE_TARGET (sd)); | |
540 | if (ibfd == NULL) | |
541 | goto interpname_failed; | |
542 | ||
c10b3605 | 543 | /* The interpreter is at least something readable to BFD; make |
80e5c09e HPN |
544 | sure it's an ELF non-archive file. */ |
545 | if (!bfd_check_format (ibfd, bfd_object) | |
546 | || bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
547 | goto interp_failed; | |
548 | ||
549 | /* Check the layout of the interpreter. */ | |
550 | cris_get_progbounds (ibfd, &interp_bounds); | |
551 | ||
552 | /* Round down to pagesize the start page and up the endpage. | |
553 | Don't round the *load and *nonload members. */ | |
554 | interp_bounds.startmem &= ~8191; | |
555 | interp_bounds.endmem = (interp_bounds.endmem + 8191) & ~8191; | |
556 | ||
557 | /* Until we need a more dynamic solution, assume we can put the | |
558 | interpreter at this fixed location. NB: this is not what | |
559 | happens for Linux 2008-12-28, but it could and might and | |
560 | perhaps should. */ | |
561 | interp_load_addr = 0x40000; | |
562 | interpsiz = interp_bounds.endmem - interp_bounds.startmem; | |
4125d647 | 563 | /* interp_filesiz = interp_bounds.end_loadmem - interp_bounds.startmem; */ |
80e5c09e HPN |
564 | |
565 | /* If we have a non-DSO or interpreter starting at the wrong | |
566 | address, bail. */ | |
567 | if (interp_bounds.startmem != 0 | |
568 | || interpsiz + interp_load_addr >= exec_load_addr) | |
569 | goto interp_failed; | |
570 | ||
571 | /* We don't have the API to get the address of a simulator | |
572 | memory area, so we go via a temporary area. Luckily, the | |
573 | interpreter is supposed to be small, less than 0x40000 | |
574 | bytes. */ | |
29136be7 AM |
575 | sim_do_commandf (sd, "memory region 0x%" PRIx64 ",0x%" PRIx64, |
576 | (uint64_t) interp_load_addr, (uint64_t) interpsiz); | |
80e5c09e HPN |
577 | |
578 | /* Now that memory for the interpreter is defined, load it. */ | |
579 | if (!cris_load_elf_file (sd, ibfd, cris_write_interp)) | |
580 | goto interp_failed; | |
581 | ||
582 | /* It's no use setting STATE_START_ADDR, because it gets | |
583 | overwritten by a sim_analyze_program call in sim_load. Let's | |
584 | just store it locally. */ | |
585 | interp_start_addr | |
586 | = (bfd_get_start_address (ibfd) | |
587 | - interp_bounds.startmem + interp_load_addr); | |
588 | ||
589 | /* Linux cares only about the first PT_INTERP, so let's ignore | |
590 | the rest. */ | |
591 | goto all_done; | |
f6bcefef | 592 | } |
80e5c09e HPN |
593 | |
594 | /* Register R10 should hold 0 at static start (no finifunc), but | |
595 | that's the default, so don't bother. */ | |
596 | return TRUE; | |
597 | ||
598 | all_done: | |
599 | ok = TRUE; | |
600 | ||
601 | interp_failed: | |
602 | bfd_close (ibfd); | |
603 | ||
604 | interpname_failed: | |
605 | if (!ok) | |
606 | sim_io_eprintf (sd, | |
607 | "%s: could not load ELF interpreter `%s' for program `%s'\n", | |
608 | STATE_MY_NAME (sd), | |
609 | interp == NULL ? "(what's-its-name)" : interp, | |
610 | bfd_get_filename (abfd)); | |
611 | free (interp); | |
612 | return ok; | |
f6bcefef HPN |
613 | } |
614 | ||
1c636da0 MF |
615 | extern const SIM_MACH * const cris_sim_machs[]; |
616 | ||
f6bcefef HPN |
617 | /* Create an instance of the simulator. */ |
618 | ||
619 | SIM_DESC | |
620 | sim_open (SIM_OPEN_KIND kind, host_callback *callback, struct bfd *abfd, | |
2e3d4f4d | 621 | char * const *argv) |
f6bcefef HPN |
622 | { |
623 | char c; | |
624 | int i; | |
625 | USI startmem = 0; | |
626 | USI endmem = CRIS_DEFAULT_MEM_SIZE; | |
627 | USI endbrk = endmem; | |
628 | USI stack_low = 0; | |
629 | SIM_DESC sd = sim_state_alloc (kind, callback); | |
630 | ||
80e5c09e HPN |
631 | static const struct auxv_entries_s |
632 | { | |
633 | bfd_byte id; | |
634 | USI (*efn) (struct bfd *ebfd); | |
635 | USI val; | |
636 | } auxv_entries[] = | |
637 | { | |
a3d4b83b HPN |
638 | #define AUX_ENT(a, b) {a, NULL, b} |
639 | #define AUX_ENTF(a, f) {a, f, 0} | |
80e5c09e HPN |
640 | AUX_ENT (AT_HWCAP, 0), |
641 | AUX_ENT (AT_PAGESZ, 8192), | |
642 | AUX_ENT (AT_CLKTCK, 100), | |
a3d4b83b HPN |
643 | AUX_ENTF (AT_PHDR, aux_ent_phdr), |
644 | AUX_ENTF (AT_PHENT, aux_ent_phent), | |
645 | AUX_ENTF (AT_PHNUM, aux_ent_phnum), | |
646 | AUX_ENTF (AT_BASE, aux_ent_base), | |
80e5c09e | 647 | AUX_ENT (AT_FLAGS, 0), |
a3d4b83b | 648 | AUX_ENTF (AT_ENTRY, aux_ent_entry), |
80e5c09e HPN |
649 | |
650 | /* Or is root better? Maybe have it settable? */ | |
651 | AUX_ENT (AT_UID, 500), | |
652 | AUX_ENT (AT_EUID, 500), | |
653 | AUX_ENT (AT_GID, 500), | |
654 | AUX_ENT (AT_EGID, 500), | |
a3d4b83b | 655 | AUX_ENT (AT_SECURE, 0), |
80e5c09e HPN |
656 | AUX_ENT (AT_NULL, 0) |
657 | }; | |
658 | ||
f6bcefef HPN |
659 | /* Can't initialize to "" below. It's either a GCC bug in old |
660 | releases (up to and including 2.95.3 (.4 in debian) or a bug in the | |
661 | standard ;-) that the rest of the elements won't be initialized. */ | |
662 | bfd_byte sp_init[4] = {0, 0, 0, 0}; | |
663 | ||
f9a4d543 | 664 | /* Set default options before parsing user options. */ |
1c636da0 | 665 | STATE_MACHS (sd) = cris_sim_machs; |
d414eb3e | 666 | STATE_MODEL_NAME (sd) = "crisv32"; |
f9a4d543 MF |
667 | current_target_byte_order = BFD_ENDIAN_LITTLE; |
668 | ||
f6bcefef | 669 | /* The cpu data is kept in a separately allocated chunk of memory. */ |
883be197 | 670 | if (sim_cpu_alloc_all_extra (sd, 0, sizeof (struct cris_sim_cpu)) |
86817137 | 671 | != SIM_RC_OK) |
f6bcefef HPN |
672 | { |
673 | free_state (sd); | |
674 | return 0; | |
675 | } | |
676 | ||
677 | if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK) | |
678 | { | |
679 | free_state (sd); | |
680 | return 0; | |
681 | } | |
682 | ||
9db2b719 MF |
683 | /* Add the CRIS-specific option list to the simulator. */ |
684 | if (sim_add_option_table (sd, NULL, cris_options) != SIM_RC_OK) | |
685 | { | |
686 | free_state (sd); | |
687 | return 0; | |
688 | } | |
689 | ||
77cf2ef5 | 690 | /* The parser will print an error message for us, so we silently return. */ |
f6bcefef HPN |
691 | if (sim_parse_args (sd, argv) != SIM_RC_OK) |
692 | { | |
693 | free_state (sd); | |
694 | return 0; | |
695 | } | |
696 | ||
f6bcefef | 697 | /* check for/establish the reference program image */ |
e8f20a28 | 698 | if (sim_analyze_program (sd, STATE_PROG_FILE (sd), abfd) != SIM_RC_OK) |
f6bcefef | 699 | { |
a0956358 HPN |
700 | /* When there's an error, sim_analyze_program has already output |
701 | a message. Let's just clarify it, as "not an object file" | |
702 | perhaps doesn't ring a bell. */ | |
703 | sim_io_eprintf (sd, "(not a CRIS program)\n"); | |
80e5c09e HPN |
704 | free_state (sd); |
705 | return 0; | |
706 | } | |
707 | ||
708 | /* We might get called with the caller expecting us to get hold of | |
709 | the bfd for ourselves, which would happen at the | |
710 | sim_analyze_program call above. */ | |
711 | if (abfd == NULL) | |
712 | abfd = STATE_PROG_BFD (sd); | |
713 | ||
c10b3605 HPN |
714 | /* Adjust the addresses of the program at this point. Unfortunately |
715 | this does not affect ELF program headers, so we have to handle | |
716 | that separately. */ | |
717 | cris_offset_sections (sd, cris_program_offset); | |
718 | ||
719 | if (abfd != NULL && bfd_get_arch (abfd) == bfd_arch_unknown) | |
80e5c09e | 720 | { |
e8f20a28 | 721 | if (STATE_PROG_FILE (sd) != NULL) |
a0956358 | 722 | sim_io_eprintf (sd, "%s: `%s' is not a CRIS program\n", |
e8f20a28 | 723 | STATE_MY_NAME (sd), STATE_PROG_FILE (sd)); |
80e5c09e HPN |
724 | else |
725 | sim_io_eprintf (sd, "%s: program to be run is not a CRIS program\n", | |
726 | STATE_MY_NAME (sd)); | |
f6bcefef HPN |
727 | free_state (sd); |
728 | return 0; | |
729 | } | |
730 | ||
731 | /* For CRIS simulator-specific use, we need to find out the bounds of | |
732 | the program as well, which is not done by sim_analyze_program | |
733 | above. */ | |
80e5c09e | 734 | if (abfd != NULL) |
f6bcefef HPN |
735 | { |
736 | struct progbounds pb; | |
737 | ||
738 | /* The sections should now be accessible using bfd functions. */ | |
80e5c09e | 739 | cris_get_progbounds (abfd, &pb); |
f6bcefef HPN |
740 | |
741 | /* We align the area that the program uses to page boundaries. */ | |
742 | startmem = pb.startmem & ~8191; | |
743 | endbrk = pb.endmem; | |
744 | endmem = (endbrk + 8191) & ~8191; | |
745 | } | |
746 | ||
747 | /* Find out how much room is needed for the environment and argv, create | |
748 | that memory and fill it. Only do this when there's a program | |
8cfc9a18 MF |
749 | specified. |
750 | ||
751 | TODO: Move this to sim_create_inferior and use STATE_PROG_ENVP. */ | |
80e5c09e | 752 | if (abfd != NULL && !cris_bare_iron) |
f6bcefef | 753 | { |
b16c44de | 754 | const char *name = bfd_get_filename (abfd); |
f6bcefef HPN |
755 | /* We use these maps to give the same behavior as the old xsim |
756 | simulator. */ | |
757 | USI envtop = 0x40000000; | |
758 | USI stacktop = 0x3e000000; | |
759 | USI envstart; | |
760 | int envc; | |
761 | int len = strlen (name) + 1; | |
762 | USI epp, epp0; | |
763 | USI stacklen; | |
f6bcefef HPN |
764 | char **prog_argv = STATE_PROG_ARGV (sd); |
765 | int my_argc = 0; | |
f6bcefef HPN |
766 | USI csp; |
767 | bfd_byte buf[4]; | |
768 | ||
769 | /* Count in the environment as well. */ | |
c5a2e012 MF |
770 | for (envc = 0; environ[envc] != NULL; envc++) |
771 | len += strlen (environ[envc]) + 1; | |
f6bcefef HPN |
772 | |
773 | for (i = 0; prog_argv[i] != NULL; my_argc++, i++) | |
774 | len += strlen (prog_argv[i]) + 1; | |
775 | ||
776 | envstart = (envtop - len) & ~8191; | |
777 | ||
778 | /* Create read-only block for the environment strings. */ | |
779 | sim_core_attach (sd, NULL, 0, access_read, 0, | |
780 | envstart, (len + 8191) & ~8191, | |
781 | 0, NULL, NULL); | |
782 | ||
783 | /* This shouldn't happen. */ | |
784 | if (envstart < stacktop) | |
785 | stacktop = envstart - 64 * 8192; | |
786 | ||
787 | csp = stacktop; | |
788 | ||
789 | /* Note that the linux kernel does not correctly compute the storage | |
790 | needs for the static-exe AUX vector. */ | |
80e5c09e | 791 | |
13a590ca | 792 | csp -= ARRAY_SIZE (auxv_entries) * 4 * 2; |
f6bcefef HPN |
793 | |
794 | csp -= (envc + 1) * 4; | |
795 | csp -= (my_argc + 1) * 4; | |
796 | csp -= 4; | |
797 | ||
798 | /* Write the target representation of the start-up-value for the | |
799 | stack-pointer suitable for register initialization below. */ | |
800 | bfd_putl32 (csp, sp_init); | |
801 | ||
802 | /* If we make this 1M higher; say 8192*1024, we have to take | |
803 | special precautions for pthreads, because pthreads assumes that | |
804 | the memory that low isn't mmapped, and that it can mmap it | |
805 | without fallback in case of failure (and we fail ungracefully | |
806 | long before *that*: the memory isn't accounted for in our mmap | |
807 | list). */ | |
808 | stack_low = (csp - (7168*1024)) & ~8191; | |
809 | ||
810 | stacklen = stacktop - stack_low; | |
811 | ||
812 | /* Tee hee, we have an executable stack. Well, it's necessary to | |
813 | test GCC trampolines... */ | |
814 | sim_core_attach (sd, NULL, 0, access_read_write_exec, 0, | |
815 | stack_low, stacklen, | |
816 | 0, NULL, NULL); | |
817 | ||
818 | epp = epp0 = envstart; | |
819 | ||
820 | /* Can't use sim_core_write_unaligned_4 without everything | |
821 | initialized when tracing, and then these writes would get into | |
822 | the trace. */ | |
823 | #define write_dword(addr, data) \ | |
824 | do \ | |
825 | { \ | |
826 | USI data_ = data; \ | |
827 | USI addr_ = addr; \ | |
828 | bfd_putl32 (data_, buf); \ | |
8b494522 | 829 | if (sim_core_write_buffer (sd, NULL, NULL_CIA, buf, addr_, 4) != 4)\ |
f6bcefef HPN |
830 | goto abandon_chip; \ |
831 | } \ | |
832 | while (0) | |
833 | ||
834 | write_dword (csp, my_argc); | |
835 | csp += 4; | |
836 | ||
837 | for (i = 0; i < my_argc; i++, csp += 4) | |
838 | { | |
839 | size_t strln = strlen (prog_argv[i]) + 1; | |
840 | ||
8b494522 MF |
841 | if (sim_core_write_buffer (sd, NULL, NULL_CIA, prog_argv[i], epp, |
842 | strln) | |
f6bcefef HPN |
843 | != strln) |
844 | goto abandon_chip; | |
845 | ||
846 | write_dword (csp, envstart + epp - epp0); | |
847 | epp += strln; | |
848 | } | |
849 | ||
850 | write_dword (csp, 0); | |
851 | csp += 4; | |
852 | ||
853 | for (i = 0; i < envc; i++, csp += 4) | |
854 | { | |
c5a2e012 | 855 | unsigned int strln = strlen (environ[i]) + 1; |
f6bcefef | 856 | |
c5a2e012 | 857 | if (sim_core_write_buffer (sd, NULL, NULL_CIA, environ[i], epp, strln) |
f6bcefef HPN |
858 | != strln) |
859 | goto abandon_chip; | |
860 | ||
861 | write_dword (csp, envstart + epp - epp0); | |
862 | epp += strln; | |
863 | } | |
864 | ||
865 | write_dword (csp, 0); | |
866 | csp += 4; | |
867 | ||
80e5c09e HPN |
868 | /* The load address of the executable could presumably be |
869 | different than the lowest used memory address, but let's | |
870 | stick to simplicity until needed. And | |
871 | cris_handle_interpreter might change startmem and endmem, so | |
872 | let's set it now. */ | |
873 | exec_load_addr = startmem; | |
f6bcefef | 874 | |
80e5c09e HPN |
875 | if (!cris_handle_interpreter (sd, abfd)) |
876 | goto abandon_chip; | |
f6bcefef | 877 | |
80e5c09e | 878 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
13a590ca | 879 | for (i = 0; i < ARRAY_SIZE (auxv_entries); i++) |
80e5c09e HPN |
880 | { |
881 | write_dword (csp, auxv_entries[i].id); | |
882 | write_dword (csp + 4, | |
883 | auxv_entries[i].efn != NULL | |
884 | ? (*auxv_entries[i].efn) (abfd) | |
885 | : auxv_entries[i].val); | |
886 | csp += 4 + 4; | |
887 | } | |
f6bcefef HPN |
888 | } |
889 | ||
890 | /* Allocate core managed memory if none specified by user. */ | |
891 | if (sim_core_read_buffer (sd, NULL, read_map, &c, startmem, 1) == 0) | |
9d67b0a0 | 892 | sim_do_commandf (sd, "memory region 0x%" PRIx32 ",0x%" PRIx32, |
5ee0bc23 | 893 | startmem, endmem - startmem); |
f6bcefef HPN |
894 | |
895 | /* Allocate simulator I/O managed memory if none specified by user. */ | |
e7e980c6 | 896 | #if WITH_HW |
f6bcefef | 897 | if (cris_have_900000xxif) |
34cf5112 | 898 | sim_hw_parse (sd, "/core/%s/reg %#x %i", "cris_900000xx", 0x90000000, 0x100); |
e7e980c6 HPN |
899 | #else |
900 | /* With the option disabled, nothing should be able to set this variable. | |
901 | We should "use" it, though, and why not assert that it isn't set. */ | |
902 | ASSERT (! cris_have_900000xxif); | |
903 | #endif | |
f6bcefef HPN |
904 | |
905 | /* Establish any remaining configuration options. */ | |
906 | if (sim_config (sd) != SIM_RC_OK) | |
907 | { | |
908 | abandon_chip: | |
909 | free_state (sd); | |
910 | return 0; | |
911 | } | |
912 | ||
913 | if (sim_post_argv_init (sd) != SIM_RC_OK) | |
914 | { | |
915 | free_state (sd); | |
916 | return 0; | |
917 | } | |
918 | ||
919 | /* Open a copy of the cpu descriptor table. */ | |
920 | { | |
921 | CGEN_CPU_DESC cd = cris_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd)->printable_name, | |
922 | CGEN_ENDIAN_LITTLE); | |
923 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
924 | { | |
925 | SIM_CPU *cpu = STATE_CPU (sd, i); | |
86817137 MF |
926 | struct cris_sim_cpu *cris_cpu = CRIS_SIM_CPU (cpu); |
927 | ||
f6bcefef HPN |
928 | CPU_CPU_DESC (cpu) = cd; |
929 | CPU_DISASSEMBLER (cpu) = cris_disassemble_insn; | |
930 | ||
931 | /* See cris_option_handler for the reason why this is needed. */ | |
932 | CPU_CRIS_MISC_PROFILE (cpu)->flags = STATE_TRACE_FLAGS (sd)[0]; | |
933 | ||
934 | /* Set SP to the stack we allocated above. */ | |
5bab16fd | 935 | (* CPU_REG_STORE (cpu)) (cpu, H_GR_SP, (const unsigned char *) sp_init, 4); |
f6bcefef HPN |
936 | |
937 | /* Set the simulator environment data. */ | |
86817137 MF |
938 | cris_cpu->highest_mmapped_page = NULL; |
939 | cris_cpu->endmem = endmem; | |
940 | cris_cpu->endbrk = endbrk; | |
941 | cris_cpu->stack_low = stack_low; | |
942 | cris_cpu->syscalls = 0; | |
943 | cris_cpu->m1threads = 0; | |
944 | cris_cpu->threadno = 0; | |
945 | cris_cpu->max_threadid = 0; | |
946 | cris_cpu->thread_data = NULL; | |
947 | memset (cris_cpu->sighandler, 0, sizeof (cris_cpu->sighandler)); | |
948 | cris_cpu->make_thread_cpu_data = NULL; | |
949 | cris_cpu->thread_cpu_data_size = 0; | |
aad3b3cb | 950 | #if WITH_HW |
86817137 | 951 | cris_cpu->deliver_interrupt = NULL; |
aad3b3cb | 952 | #endif |
f6bcefef | 953 | } |
aad3b3cb HPN |
954 | #if WITH_HW |
955 | /* Always be cycle-accurate and call before/after functions if | |
956 | with-hardware. */ | |
957 | sim_profile_set_option (sd, "-model", PROFILE_MODEL_IDX, "on"); | |
958 | #endif | |
f6bcefef HPN |
959 | } |
960 | ||
f6bcefef HPN |
961 | cris_set_callbacks (callback); |
962 | ||
963 | return sd; | |
964 | } | |
f6bcefef HPN |
965 | \f |
966 | SIM_RC | |
967 | sim_create_inferior (SIM_DESC sd, struct bfd *abfd, | |
54f7a83a MF |
968 | char * const *argv, |
969 | char * const *env) | |
f6bcefef HPN |
970 | { |
971 | SIM_CPU *current_cpu = STATE_CPU (sd, 0); | |
8cfc9a18 | 972 | host_callback *cb = STATE_CALLBACK (sd); |
20fea663 | 973 | bfd_vma addr; |
f6bcefef | 974 | |
80e5c09e | 975 | if (sd != NULL) |
20fea663 | 976 | addr = cris_start_address != (USI) -1 |
c10b3605 HPN |
977 | ? cris_start_address |
978 | : (interp_start_addr != 0 | |
979 | ? interp_start_addr | |
980 | : bfd_get_start_address (abfd)); | |
f6bcefef HPN |
981 | else |
982 | addr = 0; | |
983 | sim_pc_set (current_cpu, addr); | |
984 | ||
0e967299 MF |
985 | /* Standalone mode (i.e. `run`) will take care of the argv for us in |
986 | sim_open() -> sim_parse_args(). But in debug mode (i.e. 'target sim' | |
987 | with `gdb`), we need to handle it because the user can change the | |
988 | argv on the fly via gdb's 'run'. */ | |
989 | if (STATE_PROG_ARGV (sd) != argv) | |
990 | { | |
991 | freeargv (STATE_PROG_ARGV (sd)); | |
992 | STATE_PROG_ARGV (sd) = dupargv (argv); | |
993 | } | |
f6bcefef | 994 | |
54f7a83a MF |
995 | if (STATE_PROG_ENVP (sd) != env) |
996 | { | |
997 | freeargv (STATE_PROG_ENVP (sd)); | |
998 | STATE_PROG_ENVP (sd) = dupargv (env); | |
999 | } | |
1000 | ||
8cfc9a18 MF |
1001 | cb->argv = STATE_PROG_ARGV (sd); |
1002 | cb->envp = STATE_PROG_ENVP (sd); | |
1003 | ||
f6bcefef HPN |
1004 | return SIM_RC_OK; |
1005 | } | |
f6bcefef HPN |
1006 | \f |
1007 | /* Disassemble an instruction. */ | |
1008 | ||
1009 | static void | |
1010 | cris_disassemble_insn (SIM_CPU *cpu, | |
1011 | const CGEN_INSN *insn ATTRIBUTE_UNUSED, | |
1012 | const ARGBUF *abuf ATTRIBUTE_UNUSED, | |
1013 | IADDR pc, char *buf) | |
1014 | { | |
1015 | disassembler_ftype pinsn; | |
1016 | struct disassemble_info disasm_info; | |
1017 | SFILE sfile; | |
1018 | SIM_DESC sd = CPU_STATE (cpu); | |
1019 | ||
1020 | sfile.buffer = sfile.current = buf; | |
1021 | INIT_DISASSEMBLE_INFO (disasm_info, (FILE *) &sfile, | |
7b01c1cc AB |
1022 | (fprintf_ftype) sim_disasm_sprintf, |
1023 | (fprintf_styled_ftype) sim_disasm_styled_sprintf); | |
80e5c09e HPN |
1024 | disasm_info.endian = BFD_ENDIAN_LITTLE; |
1025 | disasm_info.read_memory_func = sim_disasm_read_memory; | |
f6bcefef | 1026 | disasm_info.memory_error_func = sim_disasm_perror_memory; |
845cbaa9 | 1027 | disasm_info.application_data = cpu; |
f6bcefef HPN |
1028 | pinsn = cris_get_disassembler (STATE_PROG_BFD (sd)); |
1029 | (*pinsn) (pc, &disasm_info); | |
1030 | } |