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Fix up mix of man(7)/mdoc(7).
[netbsd-mini2440.git] / gnu / dist / gdb6 / sim / m32r / traps-linux.c
blobf5b6783757009a7c29e76e601a67a5c11e8f1f92
1 /* m32r exception, interrupt, and trap (EIT) support
2 Copyright (C) 1998, 2003 Free Software Foundation, Inc.
3 Contributed by Renesas.
4
5 This file is part of GDB, the GNU debugger.
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
9 the Free Software Foundation; either version 2, or (at your option)
10 any later version.
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
17 You should have received a copy of the GNU General Public License along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
20
21 #include "sim-main.h"
22 #include "syscall.h"
23 #include "targ-vals.h"
24 #include <dirent.h>
25 #include <errno.h>
26 #include <fcntl.h>
27 #include <time.h>
28 #include <unistd.h>
29 #include <utime.h>
30 #include <sys/mman.h>
31 #include <sys/poll.h>
32 #include <sys/resource.h>
33 #include <sys/sysinfo.h>
34 #include <sys/stat.h>
35 #include <sys/time.h>
36 #include <sys/timeb.h>
37 #include <sys/timex.h>
38 #include <sys/types.h>
39 #include <sys/uio.h>
40 #include <sys/utsname.h>
41 #include <sys/vfs.h>
42 #include <linux/sysctl.h>
43 #include <linux/types.h>
44 #include <linux/unistd.h>
45
46 #define TRAP_ELF_SYSCALL 0
47 #define TRAP_LINUX_SYSCALL 2
48 #define TRAP_FLUSH_CACHE 12
49
50 /* The semantic code invokes this for invalid (unrecognized) instructions. */
51
52 SEM_PC
53 sim_engine_invalid_insn (SIM_CPU *current_cpu, IADDR cia, SEM_PC vpc)
54 {
55 SIM_DESC sd = CPU_STATE (current_cpu);
56
57 #if 0
58 if (STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT)
59 {
60 h_bsm_set (current_cpu, h_sm_get (current_cpu));
61 h_bie_set (current_cpu, h_ie_get (current_cpu));
62 h_bcond_set (current_cpu, h_cond_get (current_cpu));
63 /* sm not changed */
64 h_ie_set (current_cpu, 0);
65 h_cond_set (current_cpu, 0);
66
67 h_bpc_set (current_cpu, cia);
68
69 sim_engine_restart (CPU_STATE (current_cpu), current_cpu, NULL,
70 EIT_RSVD_INSN_ADDR);
71 }
72 else
73 #endif
74 sim_engine_halt (sd, current_cpu, NULL, cia, sim_stopped, SIM_SIGILL);
75 return vpc;
76 }
77
78 /* Process an address exception. */
79
80 void
81 m32r_core_signal (SIM_DESC sd, SIM_CPU *current_cpu, sim_cia cia,
82 unsigned int map, int nr_bytes, address_word addr,
83 transfer_type transfer, sim_core_signals sig)
84 {
85 if (STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT)
86 {
87 m32rbf_h_cr_set (current_cpu, H_CR_BBPC,
88 m32rbf_h_cr_get (current_cpu, H_CR_BPC));
89 if (MACH_NUM (CPU_MACH (current_cpu)) == MACH_M32R)
90 {
91 m32rbf_h_bpsw_set (current_cpu, m32rbf_h_psw_get (current_cpu));
92 /* sm not changed */
93 m32rbf_h_psw_set (current_cpu, m32rbf_h_psw_get (current_cpu) & 0x80);
94 }
95 else if (MACH_NUM (CPU_MACH (current_cpu)) == MACH_M32RX)
96 {
97 m32rxf_h_bpsw_set (current_cpu, m32rxf_h_psw_get (current_cpu));
98 /* sm not changed */
99 m32rxf_h_psw_set (current_cpu, m32rxf_h_psw_get (current_cpu) & 0x80);
100 }
101 else
102 {
103 m32r2f_h_bpsw_set (current_cpu, m32r2f_h_psw_get (current_cpu));
104 /* sm not changed */
105 m32r2f_h_psw_set (current_cpu, m32r2f_h_psw_get (current_cpu) & 0x80);
106 }
107 m32rbf_h_cr_set (current_cpu, H_CR_BPC, cia);
108
109 sim_engine_restart (CPU_STATE (current_cpu), current_cpu, NULL,
110 EIT_ADDR_EXCP_ADDR);
111 }
112 else
113 sim_core_signal (sd, current_cpu, cia, map, nr_bytes, addr,
114 transfer, sig);
115 }
116 \f
117 /* Read/write functions for system call interface. */
118
119 static int
120 syscall_read_mem (host_callback *cb, struct cb_syscall *sc,
121 unsigned long taddr, char *buf, int bytes)
122 {
123 SIM_DESC sd = (SIM_DESC) sc->p1;
124 SIM_CPU *cpu = (SIM_CPU *) sc->p2;
125
126 return sim_core_read_buffer (sd, cpu, read_map, buf, taddr, bytes);
127 }
128
129 static int
130 syscall_write_mem (host_callback *cb, struct cb_syscall *sc,
131 unsigned long taddr, const char *buf, int bytes)
132 {
133 SIM_DESC sd = (SIM_DESC) sc->p1;
134 SIM_CPU *cpu = (SIM_CPU *) sc->p2;
135
136 return sim_core_write_buffer (sd, cpu, write_map, buf, taddr, bytes);
137 }
138
139 /* Translate target's address to host's address. */
140
141 static void *
142 t2h_addr (host_callback *cb, struct cb_syscall *sc,
143 unsigned long taddr)
144 {
145 extern sim_core_trans_addr (SIM_DESC, sim_cpu *, unsigned, address_word);
146 void *addr;
147 SIM_DESC sd = (SIM_DESC) sc->p1;
148 SIM_CPU *cpu = (SIM_CPU *) sc->p2;
149
150 if (taddr == 0)
151 return NULL;
152
153 return sim_core_trans_addr (sd, cpu, read_map, taddr);
154 }
155
156 static unsigned int
157 conv_endian (unsigned int tvalue)
158 {
159 unsigned int hvalue;
160 unsigned int t1, t2, t3, t4;
161
162 if (CURRENT_HOST_BYTE_ORDER == LITTLE_ENDIAN)
163 {
164 t1 = tvalue & 0xff000000;
165 t2 = tvalue & 0x00ff0000;
166 t3 = tvalue & 0x0000ff00;
167 t4 = tvalue & 0x000000ff;
168
169 hvalue = t1 >> 24;
170 hvalue += t2 >> 8;
171 hvalue += t3 << 8;
172 hvalue += t4 << 24;
173 }
174 else
175 hvalue = tvalue;
176
177 return hvalue;
178 }
179
180 static unsigned short
181 conv_endian16 (unsigned short tvalue)
182 {
183 unsigned short hvalue;
184 unsigned short t1, t2;
185
186 if (CURRENT_HOST_BYTE_ORDER == LITTLE_ENDIAN)
187 {
188 t1 = tvalue & 0xff00;
189 t2 = tvalue & 0x00ff;
190
191 hvalue = t1 >> 8;
192 hvalue += t2 << 8;
193 }
194 else
195 hvalue = tvalue;
196
197 return hvalue;
198 }
199
200 static void
201 translate_endian(void *addr, size_t size)
202 {
203 unsigned int *p = (unsigned int *) addr;
204 int i;
205
206 for (i = 0; i <= size - 4; i += 4,p++)
207 *p = conv_endian(*p);
208
209 if (i <= size - 2)
210 *((unsigned short *) p) = conv_endian16(*((unsigned short *) p));
211 }
212
213 /* Trap support.
214 The result is the pc address to continue at.
215 Preprocessing like saving the various registers has already been done. */
216
217 USI
218 m32r_trap (SIM_CPU *current_cpu, PCADDR pc, int num)
219 {
220 SIM_DESC sd = CPU_STATE (current_cpu);
221 host_callback *cb = STATE_CALLBACK (sd);
222
223 #ifdef SIM_HAVE_BREAKPOINTS
224 /* Check for breakpoints "owned" by the simulator first, regardless
225 of --environment. */
226 if (num == TRAP_BREAKPOINT)
227 {
228 /* First try sim-break.c. If it's a breakpoint the simulator "owns"
229 it doesn't return. Otherwise it returns and let's us try. */
230 sim_handle_breakpoint (sd, current_cpu, pc);
231 /* Fall through. */
232 }
233 #endif
234
235 switch (num)
236 {
237 case TRAP_ELF_SYSCALL :
238 {
239 CB_SYSCALL s;
240
241 CB_SYSCALL_INIT (&s);
242 s.func = m32rbf_h_gr_get (current_cpu, 0);
243 s.arg1 = m32rbf_h_gr_get (current_cpu, 1);
244 s.arg2 = m32rbf_h_gr_get (current_cpu, 2);
245 s.arg3 = m32rbf_h_gr_get (current_cpu, 3);
246
247 if (s.func == TARGET_SYS_exit)
248 {
249 sim_engine_halt (sd, current_cpu, NULL, pc, sim_exited, s.arg1);
250 }
251
252 s.p1 = (PTR) sd;
253 s.p2 = (PTR) current_cpu;
254 s.read_mem = syscall_read_mem;
255 s.write_mem = syscall_write_mem;
256 cb_syscall (cb, &s);
257 m32rbf_h_gr_set (current_cpu, 2, s.errcode);
258 m32rbf_h_gr_set (current_cpu, 0, s.result);
259 m32rbf_h_gr_set (current_cpu, 1, s.result2);
260 break;
261 }
262
263 case TRAP_LINUX_SYSCALL :
264 {
265 CB_SYSCALL s;
266 unsigned int func, arg1, arg2, arg3, arg4, arg5, arg6, arg7;
267 int result, result2, errcode;
268
269 if (STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT)
270 {
271 /* The new pc is the trap vector entry.
272 We assume there's a branch there to some handler.
273 Use cr5 as EVB (EIT Vector Base) register. */
274 USI new_pc = m32rbf_h_cr_get (current_cpu, 5) + 0x40 + num * 4;
275 return new_pc;
276 }
277
278 func = m32rbf_h_gr_get (current_cpu, 7);
279 arg1 = m32rbf_h_gr_get (current_cpu, 0);
280 arg2 = m32rbf_h_gr_get (current_cpu, 1);
281 arg3 = m32rbf_h_gr_get (current_cpu, 2);
282 arg4 = m32rbf_h_gr_get (current_cpu, 3);
283 arg5 = m32rbf_h_gr_get (current_cpu, 4);
284 arg6 = m32rbf_h_gr_get (current_cpu, 5);
285 arg7 = m32rbf_h_gr_get (current_cpu, 6);
286
287 CB_SYSCALL_INIT (&s);
288 s.func = func;
289 s.arg1 = arg1;
290 s.arg2 = arg2;
291 s.arg3 = arg3;
292
293 s.p1 = (PTR) sd;
294 s.p2 = (PTR) current_cpu;
295 s.read_mem = syscall_read_mem;
296 s.write_mem = syscall_write_mem;
297
298 result = 0;
299 result2 = 0;
300 errcode = 0;
301
302 switch (func)
303 {
304 case __NR_exit:
305 sim_engine_halt (sd, current_cpu, NULL, pc, sim_exited, arg1);
306 break;
307
308 case __NR_read:
309 result = read(arg1, t2h_addr(cb, &s, arg2), arg3);
310 errcode = errno;
311 break;
312
313 case __NR_write:
314 result = write(arg1, t2h_addr(cb, &s, arg2), arg3);
315 errcode = errno;
316 break;
317
318 case __NR_open:
319 result = open((char *) t2h_addr(cb, &s, arg1), arg2, arg3);
320 errcode = errno;
321 break;
322
323 case __NR_close:
324 result = close(arg1);
325 errcode = errno;
326 break;
327
328 case __NR_creat:
329 result = creat((char *) t2h_addr(cb, &s, arg1), arg2);
330 errcode = errno;
331 break;
332
333 case __NR_link:
334 result = link((char *) t2h_addr(cb, &s, arg1),
335 (char *) t2h_addr(cb, &s, arg2));
336 errcode = errno;
337 break;
338
339 case __NR_unlink:
340 result = unlink((char *) t2h_addr(cb, &s, arg1));
341 errcode = errno;
342 break;
343
344 case __NR_chdir:
345 result = chdir((char *) t2h_addr(cb, &s, arg1));
346 errcode = errno;
347 break;
348
349 case __NR_time:
350 {
351 time_t t;
352
353 if (arg1 == 0)
354 {
355 result = (int) time(NULL);
356 errcode = errno;
357 }
358 else
359 {
360 result = (int) time(&t);
361 errcode = errno;
362
363 if (result != 0)
364 break;
365
366 translate_endian((void *) &t, sizeof(t));
367 if ((s.write_mem) (cb, &s, arg1, (char *) &t, sizeof(t)) != sizeof(t))
368 {
369 result = -1;
370 errcode = EINVAL;
371 }
372 }
373 }
374 break;
375
376 case __NR_mknod:
377 result = mknod((char *) t2h_addr(cb, &s, arg1),
378 (mode_t) arg2, (dev_t) arg3);
379 errcode = errno;
380 break;
381
382 case __NR_chmod:
383 result = chmod((char *) t2h_addr(cb, &s, arg1), (mode_t) arg2);
384 errcode = errno;
385 break;
386
387 case __NR_lchown32:
388 case __NR_lchown:
389 result = lchown((char *) t2h_addr(cb, &s, arg1),
390 (uid_t) arg2, (gid_t) arg3);
391 errcode = errno;
392 break;
393
394 case __NR_lseek:
395 result = (int) lseek(arg1, (off_t) arg2, arg3);
396 errcode = errno;
397 break;
398
399 case __NR_getpid:
400 result = getpid();
401 errcode = errno;
402 break;
403
404 case __NR_getuid32:
405 case __NR_getuid:
406 result = getuid();
407 errcode = errno;
408 break;
409
410 case __NR_utime:
411 {
412 struct utimbuf buf;
413
414 if (arg2 == 0)
415 {
416 result = utime((char *) t2h_addr(cb, &s, arg1), NULL);
417 errcode = errno;
418 }
419 else
420 {
421 buf = *((struct utimbuf *) t2h_addr(cb, &s, arg2));
422 translate_endian((void *) &buf, sizeof(buf));
423 result = utime((char *) t2h_addr(cb, &s, arg1), &buf);
424 errcode = errno;
425 }
426 }
427 break;
428
429 case __NR_access:
430 result = access((char *) t2h_addr(cb, &s, arg1), arg2);
431 errcode = errno;
432 break;
433
434 case __NR_ftime:
435 {
436 struct timeb t;
437
438 result = ftime(&t);
439 errcode = errno;
440
441 if (result != 0)
442 break;
443
444 t.time = conv_endian(t.time);
445 t.millitm = conv_endian16(t.millitm);
446 t.timezone = conv_endian16(t.timezone);
447 t.dstflag = conv_endian16(t.dstflag);
448 if ((s.write_mem) (cb, &s, arg1, (char *) &t, sizeof(t))
449 != sizeof(t))
450 {
451 result = -1;
452 errcode = EINVAL;
453 }
454 }
455
456 case __NR_sync:
457 sync();
458 result = 0;
459 break;
460
461 case __NR_rename:
462 result = rename((char *) t2h_addr(cb, &s, arg1),
463 (char *) t2h_addr(cb, &s, arg2));
464 errcode = errno;
465 break;
466
467 case __NR_mkdir:
468 result = mkdir((char *) t2h_addr(cb, &s, arg1), arg2);
469 errcode = errno;
470 break;
471
472 case __NR_rmdir:
473 result = rmdir((char *) t2h_addr(cb, &s, arg1));
474 errcode = errno;
475 break;
476
477 case __NR_dup:
478 result = dup(arg1);
479 errcode = errno;
480 break;
481
482 case __NR_brk:
483 result = brk((void *) arg1);
484 errcode = errno;
485 //result = arg1;
486 break;
487
488 case __NR_getgid32:
489 case __NR_getgid:
490 result = getgid();
491 errcode = errno;
492 break;
493
494 case __NR_geteuid32:
495 case __NR_geteuid:
496 result = geteuid();
497 errcode = errno;
498 break;
499
500 case __NR_getegid32:
501 case __NR_getegid:
502 result = getegid();
503 errcode = errno;
504 break;
505
506 case __NR_ioctl:
507 result = ioctl(arg1, arg2, arg3);
508 errcode = errno;
509 break;
510
511 case __NR_fcntl:
512 result = fcntl(arg1, arg2, arg3);
513 errcode = errno;
514 break;
515
516 case __NR_dup2:
517 result = dup2(arg1, arg2);
518 errcode = errno;
519 break;
520
521 case __NR_getppid:
522 result = getppid();
523 errcode = errno;
524 break;
525
526 case __NR_getpgrp:
527 result = getpgrp();
528 errcode = errno;
529 break;
530
531 case __NR_getrlimit:
532 {
533 struct rlimit rlim;
534
535 result = getrlimit(arg1, &rlim);
536 errcode = errno;
537
538 if (result != 0)
539 break;
540
541 translate_endian((void *) &rlim, sizeof(rlim));
542 if ((s.write_mem) (cb, &s, arg2, (char *) &rlim, sizeof(rlim))
543 != sizeof(rlim))
544 {
545 result = -1;
546 errcode = EINVAL;
547 }
548 }
549 break;
550
551 case __NR_getrusage:
552 {
553 struct rusage usage;
554
555 result = getrusage(arg1, &usage);
556 errcode = errno;
557
558 if (result != 0)
559 break;
560
561 translate_endian((void *) &usage, sizeof(usage));
562 if ((s.write_mem) (cb, &s, arg2, (char *) &usage, sizeof(usage))
563 != sizeof(usage))
564 {
565 result = -1;
566 errcode = EINVAL;
567 }
568 }
569 break;
570
571 case __NR_gettimeofday:
572 {
573 struct timeval tv;
574 struct timezone tz;
575
576 result = gettimeofday(&tv, &tz);
577 errcode = errno;
578
579 if (result != 0)
580 break;
581
582 translate_endian((void *) &tv, sizeof(tv));
583 if ((s.write_mem) (cb, &s, arg1, (char *) &tv, sizeof(tv))
584 != sizeof(tv))
585 {
586 result = -1;
587 errcode = EINVAL;
588 }
589
590 translate_endian((void *) &tz, sizeof(tz));
591 if ((s.write_mem) (cb, &s, arg2, (char *) &tz, sizeof(tz))
592 != sizeof(tz))
593 {
594 result = -1;
595 errcode = EINVAL;
596 }
597 }
598 break;
599
600 case __NR_getgroups32:
601 case __NR_getgroups:
602 {
603 gid_t *list;
604
605 if (arg1 > 0)
606 list = (gid_t *) malloc(arg1 * sizeof(gid_t));
607
608 result = getgroups(arg1, list);
609 errcode = errno;
610
611 if (result != 0)
612 break;
613
614 translate_endian((void *) list, arg1 * sizeof(gid_t));
615 if (arg1 > 0)
616 if ((s.write_mem) (cb, &s, arg2, (char *) list, arg1 * sizeof(gid_t))
617 != arg1 * sizeof(gid_t))
618 {
619 result = -1;
620 errcode = EINVAL;
621 }
622 }
623 break;
624
625 case __NR_select:
626 {
627 int n;
628 fd_set readfds;
629 fd_set *treadfdsp;
630 fd_set *hreadfdsp;
631 fd_set writefds;
632 fd_set *twritefdsp;
633 fd_set *hwritefdsp;
634 fd_set exceptfds;
635 fd_set *texceptfdsp;
636 fd_set *hexceptfdsp;
637 struct timeval *ttimeoutp;
638 struct timeval timeout;
639
640 n = arg1;
641
642 treadfdsp = (fd_set *) arg2;
643 if (treadfdsp != NULL)
644 {
645 readfds = *((fd_set *) t2h_addr(cb, &s, (unsigned int) treadfdsp));
646 translate_endian((void *) &readfds, sizeof(readfds));
647 hreadfdsp = &readfds;
648 }
649 else
650 hreadfdsp = NULL;
651
652 twritefdsp = (fd_set *) arg3;
653 if (twritefdsp != NULL)
654 {
655 writefds = *((fd_set *) t2h_addr(cb, &s, (unsigned int) twritefdsp));
656 translate_endian((void *) &writefds, sizeof(writefds));
657 hwritefdsp = &writefds;
658 }
659 else
660 hwritefdsp = NULL;
661
662 texceptfdsp = (fd_set *) arg4;
663 if (texceptfdsp != NULL)
664 {
665 exceptfds = *((fd_set *) t2h_addr(cb, &s, (unsigned int) texceptfdsp));
666 translate_endian((void *) &exceptfds, sizeof(exceptfds));
667 hexceptfdsp = &exceptfds;
668 }
669 else
670 hexceptfdsp = NULL;
671
672 ttimeoutp = (struct timeval *) arg5;
673 timeout = *((struct timeval *) t2h_addr(cb, &s, (unsigned int) ttimeoutp));
674 translate_endian((void *) &timeout, sizeof(timeout));
675
676 result = select(n, hreadfdsp, hwritefdsp, hexceptfdsp, &timeout);
677 errcode = errno;
678
679 if (result != 0)
680 break;
681
682 if (treadfdsp != NULL)
683 {
684 translate_endian((void *) &readfds, sizeof(readfds));
685 if ((s.write_mem) (cb, &s, (unsigned long) treadfdsp,
686 (char *) &readfds, sizeof(readfds)) != sizeof(readfds))
687 {
688 result = -1;
689 errcode = EINVAL;
690 }
691 }
692
693 if (twritefdsp != NULL)
694 {
695 translate_endian((void *) &writefds, sizeof(writefds));
696 if ((s.write_mem) (cb, &s, (unsigned long) twritefdsp,
697 (char *) &writefds, sizeof(writefds)) != sizeof(writefds))
698 {
699 result = -1;
700 errcode = EINVAL;
701 }
702 }
703
704 if (texceptfdsp != NULL)
705 {
706 translate_endian((void *) &exceptfds, sizeof(exceptfds));
707 if ((s.write_mem) (cb, &s, (unsigned long) texceptfdsp,
708 (char *) &exceptfds, sizeof(exceptfds)) != sizeof(exceptfds))
709 {
710 result = -1;
711 errcode = EINVAL;
712 }
713 }
714
715 translate_endian((void *) &timeout, sizeof(timeout));
716 if ((s.write_mem) (cb, &s, (unsigned long) ttimeoutp,
717 (char *) &timeout, sizeof(timeout)) != sizeof(timeout))
718 {
719 result = -1;
720 errcode = EINVAL;
721 }
722 }
723 break;
724
725 case __NR_symlink:
726 result = symlink((char *) t2h_addr(cb, &s, arg1),
727 (char *) t2h_addr(cb, &s, arg2));
728 errcode = errno;
729 break;
730
731 case __NR_readlink:
732 result = readlink((char *) t2h_addr(cb, &s, arg1),
733 (char *) t2h_addr(cb, &s, arg2),
734 arg3);
735 errcode = errno;
736 break;
737
738 case __NR_readdir:
739 result = (int) readdir((DIR *) t2h_addr(cb, &s, arg1));
740 errcode = errno;
741 break;
742
743 #if 0
744 case __NR_mmap:
745 {
746 result = (int) mmap((void *) t2h_addr(cb, &s, arg1),
747 arg2, arg3, arg4, arg5, arg6);
748 errcode = errno;
749
750 if (errno == 0)
751 {
752 sim_core_attach (sd, NULL,
753 0, access_read_write_exec, 0,
754 result, arg2, 0, NULL, NULL);
755 }
756 }
757 break;
758 #endif
759 case __NR_mmap2:
760 {
761 void *addr;
762 size_t len;
763 int prot, flags, fildes;
764 off_t off;
765
766 addr = (void *) t2h_addr(cb, &s, arg1);
767 len = arg2;
768 prot = arg3;
769 flags = arg4;
770 fildes = arg5;
771 off = arg6 << 12;
772
773 result = (int) mmap(addr, len, prot, flags, fildes, off);
774 errcode = errno;
775 if (result != -1)
776 {
777 char c;
778 if (sim_core_read_buffer (sd, NULL, read_map, &c, result, 1) == 0)
779 sim_core_attach (sd, NULL,
780 0, access_read_write_exec, 0,
781 result, len, 0, NULL, NULL);
782 }
783 }
784 break;
785
786 case __NR_mmap:
787 {
788 void *addr;
789 size_t len;
790 int prot, flags, fildes;
791 off_t off;
792
793 addr = *((void **) t2h_addr(cb, &s, arg1));
794 len = *((size_t *) t2h_addr(cb, &s, arg1 + 4));
795 prot = *((int *) t2h_addr(cb, &s, arg1 + 8));
796 flags = *((int *) t2h_addr(cb, &s, arg1 + 12));
797 fildes = *((int *) t2h_addr(cb, &s, arg1 + 16));
798 off = *((off_t *) t2h_addr(cb, &s, arg1 + 20));
799
800 addr = (void *) conv_endian((unsigned int) addr);
801 len = conv_endian(len);
802 prot = conv_endian(prot);
803 flags = conv_endian(flags);
804 fildes = conv_endian(fildes);
805 off = conv_endian(off);
806
807 //addr = (void *) t2h_addr(cb, &s, (unsigned int) addr);
808 result = (int) mmap(addr, len, prot, flags, fildes, off);
809 errcode = errno;
810
811 //if (errno == 0)
812 if (result != -1)
813 {
814 char c;
815 if (sim_core_read_buffer (sd, NULL, read_map, &c, result, 1) == 0)
816 sim_core_attach (sd, NULL,
817 0, access_read_write_exec, 0,
818 result, len, 0, NULL, NULL);
819 }
820 }
821 break;
822
823 case __NR_munmap:
824 {
825 result = munmap((void *)arg1, arg2);
826 errcode = errno;
827 if (result != -1)
828 {
829 sim_core_detach (sd, NULL, 0, arg2, result);
830 }
831 }
832 break;
833
834 case __NR_truncate:
835 result = truncate((char *) t2h_addr(cb, &s, arg1), arg2);
836 errcode = errno;
837 break;
838
839 case __NR_ftruncate:
840 result = ftruncate(arg1, arg2);
841 errcode = errno;
842 break;
843
844 case __NR_fchmod:
845 result = fchmod(arg1, arg2);
846 errcode = errno;
847 break;
848
849 case __NR_fchown32:
850 case __NR_fchown:
851 result = fchown(arg1, arg2, arg3);
852 errcode = errno;
853 break;
854
855 case __NR_statfs:
856 {
857 struct statfs statbuf;
858
859 result = statfs((char *) t2h_addr(cb, &s, arg1), &statbuf);
860 errcode = errno;
861
862 if (result != 0)
863 break;
864
865 translate_endian((void *) &statbuf, sizeof(statbuf));
866 if ((s.write_mem) (cb, &s, arg2, (char *) &statbuf, sizeof(statbuf))
867 != sizeof(statbuf))
868 {
869 result = -1;
870 errcode = EINVAL;
871 }
872 }
873 break;
874
875 case __NR_fstatfs:
876 {
877 struct statfs statbuf;
878
879 result = fstatfs(arg1, &statbuf);
880 errcode = errno;
881
882 if (result != 0)
883 break;
884
885 translate_endian((void *) &statbuf, sizeof(statbuf));
886 if ((s.write_mem) (cb, &s, arg2, (char *) &statbuf, sizeof(statbuf))
887 != sizeof(statbuf))
888 {
889 result = -1;
890 errcode = EINVAL;
891 }
892 }
893 break;
894
895 case __NR_syslog:
896 result = syslog(arg1, (char *) t2h_addr(cb, &s, arg2));
897 errcode = errno;
898 break;
899
900 case __NR_setitimer:
901 {
902 struct itimerval value, ovalue;
903
904 value = *((struct itimerval *) t2h_addr(cb, &s, arg2));
905 translate_endian((void *) &value, sizeof(value));
906
907 if (arg2 == 0)
908 {
909 result = setitimer(arg1, &value, NULL);
910 errcode = errno;
911 }
912 else
913 {
914 result = setitimer(arg1, &value, &ovalue);
915 errcode = errno;
916
917 if (result != 0)
918 break;
919
920 translate_endian((void *) &ovalue, sizeof(ovalue));
921 if ((s.write_mem) (cb, &s, arg3, (char *) &ovalue, sizeof(ovalue))
922 != sizeof(ovalue))
923 {
924 result = -1;
925 errcode = EINVAL;
926 }
927 }
928 }
929 break;
930
931 case __NR_getitimer:
932 {
933 struct itimerval value;
934
935 result = getitimer(arg1, &value);
936 errcode = errno;
937
938 if (result != 0)
939 break;
940
941 translate_endian((void *) &value, sizeof(value));
942 if ((s.write_mem) (cb, &s, arg2, (char *) &value, sizeof(value))
943 != sizeof(value))
944 {
945 result = -1;
946 errcode = EINVAL;
947 }
948 }
949 break;
950
951 case __NR_stat:
952 {
953 char *buf;
954 int buflen;
955 struct stat statbuf;
956
957 result = stat((char *) t2h_addr(cb, &s, arg1), &statbuf);
958 errcode = errno;
959 if (result < 0)
960 break;
961
962 buflen = cb_host_to_target_stat (cb, NULL, NULL);
963 buf = xmalloc (buflen);
964 if (cb_host_to_target_stat (cb, &statbuf, buf) != buflen)
965 {
966 /* The translation failed. This is due to an internal
967 host program error, not the target's fault. */
968 free (buf);
969 result = -1;
970 errcode = ENOSYS;
971 break;
972 }
973 if ((s.write_mem) (cb, &s, arg2, buf, buflen) != buflen)
974 {
975 free (buf);
976 result = -1;
977 errcode = EINVAL;
978 break;
979 }
980 free (buf);
981 }
982 break;
983
984 case __NR_lstat:
985 {
986 char *buf;
987 int buflen;
988 struct stat statbuf;
989
990 result = lstat((char *) t2h_addr(cb, &s, arg1), &statbuf);
991 errcode = errno;
992 if (result < 0)
993 break;
994
995 buflen = cb_host_to_target_stat (cb, NULL, NULL);
996 buf = xmalloc (buflen);
997 if (cb_host_to_target_stat (cb, &statbuf, buf) != buflen)
998 {
999 /* The translation failed. This is due to an internal
1000 host program error, not the target's fault. */
1001 free (buf);
1002 result = -1;
1003 errcode = ENOSYS;
1004 break;
1005 }
1006 if ((s.write_mem) (cb, &s, arg2, buf, buflen) != buflen)
1007 {
1008 free (buf);
1009 result = -1;
1010 errcode = EINVAL;
1011 break;
1012 }
1013 free (buf);
1014 }
1015 break;
1016
1017 case __NR_fstat:
1018 {
1019 char *buf;
1020 int buflen;
1021 struct stat statbuf;
1022
1023 result = fstat(arg1, &statbuf);
1024 errcode = errno;
1025 if (result < 0)
1026 break;
1027
1028 buflen = cb_host_to_target_stat (cb, NULL, NULL);
1029 buf = xmalloc (buflen);
1030 if (cb_host_to_target_stat (cb, &statbuf, buf) != buflen)
1031 {
1032 /* The translation failed. This is due to an internal
1033 host program error, not the target's fault. */
1034 free (buf);
1035 result = -1;
1036 errcode = ENOSYS;
1037 break;
1038 }
1039 if ((s.write_mem) (cb, &s, arg2, buf, buflen) != buflen)
1040 {
1041 free (buf);
1042 result = -1;
1043 errcode = EINVAL;
1044 break;
1045 }
1046 free (buf);
1047 }
1048 break;
1049
1050 case __NR_sysinfo:
1051 {
1052 struct sysinfo info;
1053
1054 result = sysinfo(&info);
1055 errcode = errno;
1056
1057 if (result != 0)
1058 break;
1059
1060 info.uptime = conv_endian(info.uptime);
1061 info.loads[0] = conv_endian(info.loads[0]);
1062 info.loads[1] = conv_endian(info.loads[1]);
1063 info.loads[2] = conv_endian(info.loads[2]);
1064 info.totalram = conv_endian(info.totalram);
1065 info.freeram = conv_endian(info.freeram);
1066 info.sharedram = conv_endian(info.sharedram);
1067 info.bufferram = conv_endian(info.bufferram);
1068 info.totalswap = conv_endian(info.totalswap);
1069 info.freeswap = conv_endian(info.freeswap);
1070 info.procs = conv_endian16(info.procs);
1071 #if LINUX_VERSION_CODE >= 0x20400
1072 info.totalhigh = conv_endian(info.totalhigh);
1073 info.freehigh = conv_endian(info.freehigh);
1074 info.mem_unit = conv_endian(info.mem_unit);
1075 #endif
1076 if ((s.write_mem) (cb, &s, arg1, (char *) &info, sizeof(info))
1077 != sizeof(info))
1078 {
1079 result = -1;
1080 errcode = EINVAL;
1081 }
1082 }
1083 break;
1084
1085 #if 0
1086 case __NR_ipc:
1087 {
1088 result = ipc(arg1, arg2, arg3, arg4,
1089 (void *) t2h_addr(cb, &s, arg5), arg6);
1090 errcode = errno;
1091 }
1092 break;
1093 #endif
1094
1095 case __NR_fsync:
1096 result = fsync(arg1);
1097 errcode = errno;
1098 break;
1099
1100 case __NR_uname:
1101 /* utsname contains only arrays of char, so it is not necessary
1102 to translate endian. */
1103 result = uname((struct utsname *) t2h_addr(cb, &s, arg1));
1104 errcode = errno;
1105 break;
1106
1107 case __NR_adjtimex:
1108 {
1109 struct timex buf;
1110
1111 result = adjtimex(&buf);
1112 errcode = errno;
1113
1114 if (result != 0)
1115 break;
1116
1117 translate_endian((void *) &buf, sizeof(buf));
1118 if ((s.write_mem) (cb, &s, arg1, (char *) &buf, sizeof(buf))
1119 != sizeof(buf))
1120 {
1121 result = -1;
1122 errcode = EINVAL;
1123 }
1124 }
1125 break;
1126
1127 case __NR_mprotect:
1128 result = mprotect((void *) arg1, arg2, arg3);
1129 errcode = errno;
1130 break;
1131
1132 case __NR_fchdir:
1133 result = fchdir(arg1);
1134 errcode = errno;
1135 break;
1136
1137 case __NR_setfsuid32:
1138 case __NR_setfsuid:
1139 result = setfsuid(arg1);
1140 errcode = errno;
1141 break;
1142
1143 case __NR_setfsgid32:
1144 case __NR_setfsgid:
1145 result = setfsgid(arg1);
1146 errcode = errno;
1147 break;
1148
1149 #if 0
1150 case __NR__llseek:
1151 {
1152 loff_t buf;
1153
1154 result = _llseek(arg1, arg2, arg3, &buf, arg5);
1155 errcode = errno;
1156
1157 if (result != 0)
1158 break;
1159
1160 translate_endian((void *) &buf, sizeof(buf));
1161 if ((s.write_mem) (cb, &s, t2h_addr(cb, &s, arg4),
1162 (char *) &buf, sizeof(buf)) != sizeof(buf))
1163 {
1164 result = -1;
1165 errcode = EINVAL;
1166 }
1167 }
1168 break;
1169
1170 case __NR_getdents:
1171 {
1172 struct dirent dir;
1173
1174 result = getdents(arg1, &dir, arg3);
1175 errcode = errno;
1176
1177 if (result != 0)
1178 break;
1179
1180 dir.d_ino = conv_endian(dir.d_ino);
1181 dir.d_off = conv_endian(dir.d_off);
1182 dir.d_reclen = conv_endian16(dir.d_reclen);
1183 if ((s.write_mem) (cb, &s, arg2, (char *) &dir, sizeof(dir))
1184 != sizeof(dir))
1185 {
1186 result = -1;
1187 errcode = EINVAL;
1188 }
1189 }
1190 break;
1191 #endif
1192
1193 case __NR_flock:
1194 result = flock(arg1, arg2);
1195 errcode = errno;
1196 break;
1197
1198 case __NR_msync:
1199 result = msync((void *) arg1, arg2, arg3);
1200 errcode = errno;
1201 break;
1202
1203 case __NR_readv:
1204 {
1205 struct iovec vector;
1206
1207 vector = *((struct iovec *) t2h_addr(cb, &s, arg2));
1208 translate_endian((void *) &vector, sizeof(vector));
1209
1210 result = readv(arg1, &vector, arg3);
1211 errcode = errno;
1212 }
1213 break;
1214
1215 case __NR_writev:
1216 {
1217 struct iovec vector;
1218
1219 vector = *((struct iovec *) t2h_addr(cb, &s, arg2));
1220 translate_endian((void *) &vector, sizeof(vector));
1221
1222 result = writev(arg1, &vector, arg3);
1223 errcode = errno;
1224 }
1225 break;
1226
1227 case __NR_fdatasync:
1228 result = fdatasync(arg1);
1229 errcode = errno;
1230 break;
1231
1232 case __NR_mlock:
1233 result = mlock((void *) t2h_addr(cb, &s, arg1), arg2);
1234 errcode = errno;
1235 break;
1236
1237 case __NR_munlock:
1238 result = munlock((void *) t2h_addr(cb, &s, arg1), arg2);
1239 errcode = errno;
1240 break;
1241
1242 case __NR_nanosleep:
1243 {
1244 struct timespec req, rem;
1245
1246 req = *((struct timespec *) t2h_addr(cb, &s, arg2));
1247 translate_endian((void *) &req, sizeof(req));
1248
1249 result = nanosleep(&req, &rem);
1250 errcode = errno;
1251
1252 if (result != 0)
1253 break;
1254
1255 translate_endian((void *) &rem, sizeof(rem));
1256 if ((s.write_mem) (cb, &s, arg2, (char *) &rem, sizeof(rem))
1257 != sizeof(rem))
1258 {
1259 result = -1;
1260 errcode = EINVAL;
1261 }
1262 }
1263 break;
1264
1265 case __NR_mremap: /* FIXME */
1266 result = (int) mremap((void *) t2h_addr(cb, &s, arg1), arg2, arg3, arg4);
1267 errcode = errno;
1268 break;
1269
1270 case __NR_getresuid32:
1271 case __NR_getresuid:
1272 {
1273 uid_t ruid, euid, suid;
1274
1275 result = getresuid(&ruid, &euid, &suid);
1276 errcode = errno;
1277
1278 if (result != 0)
1279 break;
1280
1281 *((uid_t *) t2h_addr(cb, &s, arg1)) = conv_endian(ruid);
1282 *((uid_t *) t2h_addr(cb, &s, arg2)) = conv_endian(euid);
1283 *((uid_t *) t2h_addr(cb, &s, arg3)) = conv_endian(suid);
1284 }
1285 break;
1286
1287 case __NR_poll:
1288 {
1289 struct pollfd ufds;
1290
1291 ufds = *((struct pollfd *) t2h_addr(cb, &s, arg1));
1292 ufds.fd = conv_endian(ufds.fd);
1293 ufds.events = conv_endian16(ufds.events);
1294 ufds.revents = conv_endian16(ufds.revents);
1295
1296 result = poll(&ufds, arg2, arg3);
1297 errcode = errno;
1298 }
1299 break;
1300
1301 case __NR_getresgid32:
1302 case __NR_getresgid:
1303 {
1304 uid_t rgid, egid, sgid;
1305
1306 result = getresgid(&rgid, &egid, &sgid);
1307 errcode = errno;
1308
1309 if (result != 0)
1310 break;
1311
1312 *((uid_t *) t2h_addr(cb, &s, arg1)) = conv_endian(rgid);
1313 *((uid_t *) t2h_addr(cb, &s, arg2)) = conv_endian(egid);
1314 *((uid_t *) t2h_addr(cb, &s, arg3)) = conv_endian(sgid);
1315 }
1316 break;
1317
1318 case __NR_pread:
1319 result = pread(arg1, (void *) t2h_addr(cb, &s, arg2), arg3, arg4);
1320 errcode = errno;
1321 break;
1322
1323 case __NR_pwrite:
1324 result = pwrite(arg1, (void *) t2h_addr(cb, &s, arg2), arg3, arg4);
1325 errcode = errno;
1326 break;
1327
1328 case __NR_chown32:
1329 case __NR_chown:
1330 result = chown((char *) t2h_addr(cb, &s, arg1), arg2, arg3);
1331 errcode = errno;
1332 break;
1333
1334 case __NR_getcwd:
1335 result = (int) getcwd((char *) t2h_addr(cb, &s, arg1), arg2);
1336 errcode = errno;
1337 break;
1338
1339 case __NR_sendfile:
1340 {
1341 off_t offset;
1342
1343 offset = *((off_t *) t2h_addr(cb, &s, arg3));
1344 offset = conv_endian(offset);
1345
1346 result = sendfile(arg1, arg2, &offset, arg3);
1347 errcode = errno;
1348
1349 if (result != 0)
1350 break;
1351
1352 *((off_t *) t2h_addr(cb, &s, arg3)) = conv_endian(offset);
1353 }
1354 break;
1355
1356 default:
1357 result = -1;
1358 errcode = ENOSYS;
1359 break;
1360 }
1361
1362 if (result == -1)
1363 m32rbf_h_gr_set (current_cpu, 0, -errcode);
1364 else
1365 m32rbf_h_gr_set (current_cpu, 0, result);
1366 break;
1367 }
1368
1369 case TRAP_BREAKPOINT:
1370 sim_engine_halt (sd, current_cpu, NULL, pc,
1371 sim_stopped, SIM_SIGTRAP);
1372 break;
1373
1374 case TRAP_FLUSH_CACHE:
1375 /* Do nothing. */
1376 break;
1377
1378 default :
1379 {
1380 /* Use cr5 as EVB (EIT Vector Base) register. */
1381 USI new_pc = m32rbf_h_cr_get (current_cpu, 5) + 0x40 + num * 4;
1382 return new_pc;
1383 }
1384 }
1385
1386 /* Fake an "rte" insn. */
1387 /* FIXME: Should duplicate all of rte processing. */
1388 return (pc & -4) + 4;
1389 }
NetBSD on the FriendlyARM MINI2440