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1 /*
2 * qemu user main
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * This program 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 of the License, or
9 * (at your option) any later version.
10 *
11 * This program 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 this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20 #include <stdlib.h>
21 #include <stdio.h>
22 #include <stdarg.h>
23 #include <string.h>
24 #include <errno.h>
25 #include <unistd.h>
26
27 #include "qemu.h"
28
29 #define DEBUG_LOGFILE "/tmp/qemu.log"
30
31 #ifdef __APPLE__
32 #include <crt_externs.h>
33 # define environ (*_NSGetEnviron())
34 #endif
35
36 static const char *interp_prefix = CONFIG_QEMU_PREFIX;
37 const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
38
39 #if defined(__i386__) && !defined(CONFIG_STATIC)
40 /* Force usage of an ELF interpreter even if it is an ELF shared
41 object ! */
42 const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
43 #endif
44
45 /* for recent libc, we add these dummy symbols which are not declared
46 when generating a linked object (bug in ld ?) */
47 #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC)
48 long __preinit_array_start[0];
49 long __preinit_array_end[0];
50 long __init_array_start[0];
51 long __init_array_end[0];
52 long __fini_array_start[0];
53 long __fini_array_end[0];
54 #endif
55
56 /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
57 we allocate a bigger stack. Need a better solution, for example
58 by remapping the process stack directly at the right place */
59 unsigned long x86_stack_size = 512 * 1024;
60
61 void gemu_log(const char *fmt, ...)
62 {
63 va_list ap;
64
65 va_start(ap, fmt);
66 vfprintf(stderr, fmt, ap);
67 va_end(ap);
68 }
69
70 void cpu_outb(CPUState *env, int addr, int val)
71 {
72 fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
73 }
74
75 void cpu_outw(CPUState *env, int addr, int val)
76 {
77 fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
78 }
79
80 void cpu_outl(CPUState *env, int addr, int val)
81 {
82 fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
83 }
84
85 int cpu_inb(CPUState *env, int addr)
86 {
87 fprintf(stderr, "inb: port=0x%04x\n", addr);
88 return 0;
89 }
90
91 int cpu_inw(CPUState *env, int addr)
92 {
93 fprintf(stderr, "inw: port=0x%04x\n", addr);
94 return 0;
95 }
96
97 int cpu_inl(CPUState *env, int addr)
98 {
99 fprintf(stderr, "inl: port=0x%04x\n", addr);
100 return 0;
101 }
102
103 int cpu_get_pic_interrupt(CPUState *env)
104 {
105 return -1;
106 }
107
108 /* timers for rdtsc */
109
110 #if 0
111
112 static uint64_t emu_time;
113
114 int64_t cpu_get_real_ticks(void)
115 {
116 return emu_time++;
117 }
118
119 #endif
120
121 #ifdef TARGET_I386
122 /***********************************************************/
123 /* CPUX86 core interface */
124
125 void cpu_smm_update(CPUState *env)
126 {
127 }
128
129 uint64_t cpu_get_tsc(CPUX86State *env)
130 {
131 return cpu_get_real_ticks();
132 }
133
134 static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
135 int flags)
136 {
137 unsigned int e1, e2;
138 uint32_t *p;
139 e1 = (addr << 16) | (limit & 0xffff);
140 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
141 e2 |= flags;
142 p = ptr;
143 p[0] = tswapl(e1);
144 p[1] = tswapl(e2);
145 }
146
147 static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
148 unsigned long addr, unsigned int sel)
149 {
150 unsigned int e1, e2;
151 uint32_t *p;
152 e1 = (addr & 0xffff) | (sel << 16);
153 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
154 p = ptr;
155 p[0] = tswapl(e1);
156 p[1] = tswapl(e2);
157 }
158
159 uint64_t gdt_table[6];
160 uint64_t idt_table[256];
161
162 /* only dpl matters as we do only user space emulation */
163 static void set_idt(int n, unsigned int dpl)
164 {
165 set_gate(idt_table + n, 0, dpl, 0, 0);
166 }
167
168 void cpu_loop(CPUX86State *env)
169 {
170 int trapnr;
171 target_ulong pc;
172 target_siginfo_t info;
173
174 for(;;) {
175 trapnr = cpu_x86_exec(env);
176 switch(trapnr) {
177 case 0x80:
178 /* linux syscall */
179 env->regs[R_EAX] = do_syscall(env,
180 env->regs[R_EAX],
181 env->regs[R_EBX],
182 env->regs[R_ECX],
183 env->regs[R_EDX],
184 env->regs[R_ESI],
185 env->regs[R_EDI],
186 env->regs[R_EBP]);
187 break;
188 case EXCP0B_NOSEG:
189 case EXCP0C_STACK:
190 info.si_signo = SIGBUS;
191 info.si_errno = 0;
192 info.si_code = TARGET_SI_KERNEL;
193 info._sifields._sigfault._addr = 0;
194 queue_signal(info.si_signo, &info);
195 break;
196 case EXCP0D_GPF:
197 if (env->eflags & VM_MASK) {
198 handle_vm86_fault(env);
199 } else {
200 info.si_signo = SIGSEGV;
201 info.si_errno = 0;
202 info.si_code = TARGET_SI_KERNEL;
203 info._sifields._sigfault._addr = 0;
204 queue_signal(info.si_signo, &info);
205 }
206 break;
207 case EXCP0E_PAGE:
208 info.si_signo = SIGSEGV;
209 info.si_errno = 0;
210 if (!(env->error_code & 1))
211 info.si_code = TARGET_SEGV_MAPERR;
212 else
213 info.si_code = TARGET_SEGV_ACCERR;
214 info._sifields._sigfault._addr = env->cr[2];
215 queue_signal(info.si_signo, &info);
216 break;
217 case EXCP00_DIVZ:
218 if (env->eflags & VM_MASK) {
219 handle_vm86_trap(env, trapnr);
220 } else {
221 /* division by zero */
222 info.si_signo = SIGFPE;
223 info.si_errno = 0;
224 info.si_code = TARGET_FPE_INTDIV;
225 info._sifields._sigfault._addr = env->eip;
226 queue_signal(info.si_signo, &info);
227 }
228 break;
229 case EXCP01_SSTP:
230 case EXCP03_INT3:
231 if (env->eflags & VM_MASK) {
232 handle_vm86_trap(env, trapnr);
233 } else {
234 info.si_signo = SIGTRAP;
235 info.si_errno = 0;
236 if (trapnr == EXCP01_SSTP) {
237 info.si_code = TARGET_TRAP_BRKPT;
238 info._sifields._sigfault._addr = env->eip;
239 } else {
240 info.si_code = TARGET_SI_KERNEL;
241 info._sifields._sigfault._addr = 0;
242 }
243 queue_signal(info.si_signo, &info);
244 }
245 break;
246 case EXCP04_INTO:
247 case EXCP05_BOUND:
248 if (env->eflags & VM_MASK) {
249 handle_vm86_trap(env, trapnr);
250 } else {
251 info.si_signo = SIGSEGV;
252 info.si_errno = 0;
253 info.si_code = TARGET_SI_KERNEL;
254 info._sifields._sigfault._addr = 0;
255 queue_signal(info.si_signo, &info);
256 }
257 break;
258 case EXCP06_ILLOP:
259 info.si_signo = SIGILL;
260 info.si_errno = 0;
261 info.si_code = TARGET_ILL_ILLOPN;
262 info._sifields._sigfault._addr = env->eip;
263 queue_signal(info.si_signo, &info);
264 break;
265 case EXCP_INTERRUPT:
266 /* just indicate that signals should be handled asap */
267 break;
268 case EXCP_DEBUG:
269 {
270 int sig;
271
272 sig = gdb_handlesig (env, TARGET_SIGTRAP);
273 if (sig)
274 {
275 info.si_signo = sig;
276 info.si_errno = 0;
277 info.si_code = TARGET_TRAP_BRKPT;
278 queue_signal(info.si_signo, &info);
279 }
280 }
281 break;
282 default:
283 pc = env->segs[R_CS].base + env->eip;
284 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
285 (long)pc, trapnr);
286 abort();
287 }
288 process_pending_signals(env);
289 }
290 }
291 #endif
292
293 #ifdef TARGET_ARM
294
295 /* XXX: find a better solution */
296 extern void tb_invalidate_page_range(target_ulong start, target_ulong end);
297
298 static void arm_cache_flush(target_ulong start, target_ulong last)
299 {
300 target_ulong addr, last1;
301
302 if (last < start)
303 return;
304 addr = start;
305 for(;;) {
306 last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
307 if (last1 > last)
308 last1 = last;
309 tb_invalidate_page_range(addr, last1 + 1);
310 if (last1 == last)
311 break;
312 addr = last1 + 1;
313 }
314 }
315
316 void cpu_loop(CPUARMState *env)
317 {
318 int trapnr;
319 unsigned int n, insn;
320 target_siginfo_t info;
321 uint32_t addr;
322
323 for(;;) {
324 trapnr = cpu_arm_exec(env);
325 switch(trapnr) {
326 case EXCP_UDEF:
327 {
328 TaskState *ts = env->opaque;
329 uint32_t opcode;
330
331 /* we handle the FPU emulation here, as Linux */
332 /* we get the opcode */
333 opcode = tget32(env->regs[15]);
334
335 if (EmulateAll(opcode, &ts->fpa, env) == 0) {
336 info.si_signo = SIGILL;
337 info.si_errno = 0;
338 info.si_code = TARGET_ILL_ILLOPN;
339 info._sifields._sigfault._addr = env->regs[15];
340 queue_signal(info.si_signo, &info);
341 } else {
342 /* increment PC */
343 env->regs[15] += 4;
344 }
345 }
346 break;
347 case EXCP_SWI:
348 case EXCP_BKPT:
349 {
350 env->eabi = 1;
351 /* system call */
352 if (trapnr == EXCP_BKPT) {
353 if (env->thumb) {
354 insn = tget16(env->regs[15]);
355 n = insn & 0xff;
356 env->regs[15] += 2;
357 } else {
358 insn = tget32(env->regs[15]);
359 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
360 env->regs[15] += 4;
361 }
362 } else {
363 if (env->thumb) {
364 insn = tget16(env->regs[15] - 2);
365 n = insn & 0xff;
366 } else {
367 insn = tget32(env->regs[15] - 4);
368 n = insn & 0xffffff;
369 }
370 }
371
372 if (n == ARM_NR_cacheflush) {
373 arm_cache_flush(env->regs[0], env->regs[1]);
374 } else if (n == ARM_NR_semihosting
375 || n == ARM_NR_thumb_semihosting) {
376 env->regs[0] = do_arm_semihosting (env);
377 } else if (n == 0 || n >= ARM_SYSCALL_BASE
378 || (env->thumb && n == ARM_THUMB_SYSCALL)) {
379 /* linux syscall */
380 if (env->thumb || n == 0) {
381 n = env->regs[7];
382 } else {
383 n -= ARM_SYSCALL_BASE;
384 env->eabi = 0;
385 }
386 env->regs[0] = do_syscall(env,
387 n,
388 env->regs[0],
389 env->regs[1],
390 env->regs[2],
391 env->regs[3],
392 env->regs[4],
393 env->regs[5]);
394 } else {
395 goto error;
396 }
397 }
398 break;
399 case EXCP_INTERRUPT:
400 /* just indicate that signals should be handled asap */
401 break;
402 case EXCP_PREFETCH_ABORT:
403 addr = env->cp15.c6_data;
404 goto do_segv;
405 case EXCP_DATA_ABORT:
406 addr = env->cp15.c6_insn;
407 goto do_segv;
408 do_segv:
409 {
410 info.si_signo = SIGSEGV;
411 info.si_errno = 0;
412 /* XXX: check env->error_code */
413 info.si_code = TARGET_SEGV_MAPERR;
414 info._sifields._sigfault._addr = addr;
415 queue_signal(info.si_signo, &info);
416 }
417 break;
418 case EXCP_DEBUG:
419 {
420 int sig;
421
422 sig = gdb_handlesig (env, TARGET_SIGTRAP);
423 if (sig)
424 {
425 info.si_signo = sig;
426 info.si_errno = 0;
427 info.si_code = TARGET_TRAP_BRKPT;
428 queue_signal(info.si_signo, &info);
429 }
430 }
431 break;
432 default:
433 error:
434 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
435 trapnr);
436 cpu_dump_state(env, stderr, fprintf, 0);
437 abort();
438 }
439 process_pending_signals(env);
440 }
441 }
442
443 #endif
444
445 #ifdef TARGET_SPARC
446
447 //#define DEBUG_WIN
448
449 /* WARNING: dealing with register windows _is_ complicated. More info
450 can be found at http://www.sics.se/~psm/sparcstack.html */
451 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
452 {
453 index = (index + cwp * 16) & (16 * NWINDOWS - 1);
454 /* wrap handling : if cwp is on the last window, then we use the
455 registers 'after' the end */
456 if (index < 8 && env->cwp == (NWINDOWS - 1))
457 index += (16 * NWINDOWS);
458 return index;
459 }
460
461 /* save the register window 'cwp1' */
462 static inline void save_window_offset(CPUSPARCState *env, int cwp1)
463 {
464 unsigned int i;
465 target_ulong sp_ptr;
466
467 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
468 #if defined(DEBUG_WIN)
469 printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
470 (int)sp_ptr, cwp1);
471 #endif
472 for(i = 0; i < 16; i++) {
473 tputl(sp_ptr, env->regbase[get_reg_index(env, cwp1, 8 + i)]);
474 sp_ptr += sizeof(target_ulong);
475 }
476 }
477
478 static void save_window(CPUSPARCState *env)
479 {
480 #ifndef TARGET_SPARC64
481 unsigned int new_wim;
482 new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
483 ((1LL << NWINDOWS) - 1);
484 save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
485 env->wim = new_wim;
486 #else
487 save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
488 env->cansave++;
489 env->canrestore--;
490 #endif
491 }
492
493 static void restore_window(CPUSPARCState *env)
494 {
495 unsigned int new_wim, i, cwp1;
496 target_ulong sp_ptr;
497
498 new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
499 ((1LL << NWINDOWS) - 1);
500
501 /* restore the invalid window */
502 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
503 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
504 #if defined(DEBUG_WIN)
505 printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
506 (int)sp_ptr, cwp1);
507 #endif
508 for(i = 0; i < 16; i++) {
509 env->regbase[get_reg_index(env, cwp1, 8 + i)] = tgetl(sp_ptr);
510 sp_ptr += sizeof(target_ulong);
511 }
512 env->wim = new_wim;
513 #ifdef TARGET_SPARC64
514 env->canrestore++;
515 if (env->cleanwin < NWINDOWS - 1)
516 env->cleanwin++;
517 env->cansave--;
518 #endif
519 }
520
521 static void flush_windows(CPUSPARCState *env)
522 {
523 int offset, cwp1;
524
525 offset = 1;
526 for(;;) {
527 /* if restore would invoke restore_window(), then we can stop */
528 cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
529 if (env->wim & (1 << cwp1))
530 break;
531 save_window_offset(env, cwp1);
532 offset++;
533 }
534 /* set wim so that restore will reload the registers */
535 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
536 env->wim = 1 << cwp1;
537 #if defined(DEBUG_WIN)
538 printf("flush_windows: nb=%d\n", offset - 1);
539 #endif
540 }
541
542 void cpu_loop (CPUSPARCState *env)
543 {
544 int trapnr, ret;
545 target_siginfo_t info;
546
547 while (1) {
548 trapnr = cpu_sparc_exec (env);
549
550 switch (trapnr) {
551 #ifndef TARGET_SPARC64
552 case 0x88:
553 case 0x90:
554 #else
555 case 0x16d:
556 #endif
557 ret = do_syscall (env, env->gregs[1],
558 env->regwptr[0], env->regwptr[1],
559 env->regwptr[2], env->regwptr[3],
560 env->regwptr[4], env->regwptr[5]);
561 if ((unsigned int)ret >= (unsigned int)(-515)) {
562 env->psr |= PSR_CARRY;
563 ret = -ret;
564 } else {
565 env->psr &= ~PSR_CARRY;
566 }
567 env->regwptr[0] = ret;
568 /* next instruction */
569 env->pc = env->npc;
570 env->npc = env->npc + 4;
571 break;
572 case 0x83: /* flush windows */
573 flush_windows(env);
574 /* next instruction */
575 env->pc = env->npc;
576 env->npc = env->npc + 4;
577 break;
578 #ifndef TARGET_SPARC64
579 case TT_WIN_OVF: /* window overflow */
580 save_window(env);
581 break;
582 case TT_WIN_UNF: /* window underflow */
583 restore_window(env);
584 break;
585 case TT_TFAULT:
586 case TT_DFAULT:
587 {
588 info.si_signo = SIGSEGV;
589 info.si_errno = 0;
590 /* XXX: check env->error_code */
591 info.si_code = TARGET_SEGV_MAPERR;
592 info._sifields._sigfault._addr = env->mmuregs[4];
593 queue_signal(info.si_signo, &info);
594 }
595 break;
596 #else
597 case TT_SPILL: /* window overflow */
598 save_window(env);
599 break;
600 case TT_FILL: /* window underflow */
601 restore_window(env);
602 break;
603 // XXX
604 #endif
605 case EXCP_INTERRUPT:
606 /* just indicate that signals should be handled asap */
607 break;
608 case EXCP_DEBUG:
609 {
610 int sig;
611
612 sig = gdb_handlesig (env, TARGET_SIGTRAP);
613 if (sig)
614 {
615 info.si_signo = sig;
616 info.si_errno = 0;
617 info.si_code = TARGET_TRAP_BRKPT;
618 queue_signal(info.si_signo, &info);
619 }
620 }
621 break;
622 default:
623 printf ("Unhandled trap: 0x%x\n", trapnr);
624 cpu_dump_state(env, stderr, fprintf, 0);
625 exit (1);
626 }
627 process_pending_signals (env);
628 }
629 }
630
631 #endif
632
633 #ifdef TARGET_PPC
634
635 static inline uint64_t cpu_ppc_get_tb (CPUState *env)
636 {
637 /* TO FIX */
638 return 0;
639 }
640
641 uint32_t cpu_ppc_load_tbl (CPUState *env)
642 {
643 return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
644 }
645
646 uint32_t cpu_ppc_load_tbu (CPUState *env)
647 {
648 return cpu_ppc_get_tb(env) >> 32;
649 }
650
651 static void cpu_ppc_store_tb (CPUState *env, uint64_t value)
652 {
653 /* TO FIX */
654 }
655
656 void cpu_ppc_store_tbu (CPUState *env, uint32_t value)
657 {
658 cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env));
659 }
660
661 void cpu_ppc_store_tbl (CPUState *env, uint32_t value)
662 {
663 cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value);
664 }
665
666 uint32_t cpu_ppc_load_decr (CPUState *env)
667 {
668 /* TO FIX */
669 return -1;
670 }
671
672 void cpu_ppc_store_decr (CPUState *env, uint32_t value)
673 {
674 /* TO FIX */
675 }
676
677 void cpu_loop(CPUPPCState *env)
678 {
679 target_siginfo_t info;
680 int trapnr;
681 uint32_t ret;
682
683 for(;;) {
684 trapnr = cpu_ppc_exec(env);
685 if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
686 trapnr != EXCP_TRACE) {
687 if (loglevel > 0) {
688 cpu_dump_state(env, logfile, fprintf, 0);
689 }
690 }
691 switch(trapnr) {
692 case EXCP_NONE:
693 break;
694 case EXCP_SYSCALL_USER:
695 /* system call */
696 /* WARNING:
697 * PPC ABI uses overflow flag in cr0 to signal an error
698 * in syscalls.
699 */
700 #if 0
701 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
702 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
703 #endif
704 env->crf[0] &= ~0x1;
705 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
706 env->gpr[5], env->gpr[6], env->gpr[7],
707 env->gpr[8]);
708 if (ret > (uint32_t)(-515)) {
709 env->crf[0] |= 0x1;
710 ret = -ret;
711 }
712 env->gpr[3] = ret;
713 #if 0
714 printf("syscall returned 0x%08x (%d)\n", ret, ret);
715 #endif
716 break;
717 case EXCP_RESET:
718 /* Should not happen ! */
719 fprintf(stderr, "RESET asked... Stop emulation\n");
720 if (loglevel)
721 fprintf(logfile, "RESET asked... Stop emulation\n");
722 abort();
723 case EXCP_MACHINE_CHECK:
724 fprintf(stderr, "Machine check exeption... Stop emulation\n");
725 if (loglevel)
726 fprintf(logfile, "RESET asked... Stop emulation\n");
727 info.si_signo = TARGET_SIGBUS;
728 info.si_errno = 0;
729 info.si_code = TARGET_BUS_OBJERR;
730 info._sifields._sigfault._addr = env->nip - 4;
731 queue_signal(info.si_signo, &info);
732 case EXCP_DSI:
733 fprintf(stderr, "Invalid data memory access: 0x%08x\n",
734 env->spr[SPR_DAR]);
735 if (loglevel) {
736 fprintf(logfile, "Invalid data memory access: 0x%08x\n",
737 env->spr[SPR_DAR]);
738 }
739 switch (env->error_code & 0xFF000000) {
740 case 0x40000000:
741 info.si_signo = TARGET_SIGSEGV;
742 info.si_errno = 0;
743 info.si_code = TARGET_SEGV_MAPERR;
744 break;
745 case 0x04000000:
746 info.si_signo = TARGET_SIGILL;
747 info.si_errno = 0;
748 info.si_code = TARGET_ILL_ILLADR;
749 break;
750 case 0x08000000:
751 info.si_signo = TARGET_SIGSEGV;
752 info.si_errno = 0;
753 info.si_code = TARGET_SEGV_ACCERR;
754 break;
755 default:
756 /* Let's send a regular segfault... */
757 fprintf(stderr, "Invalid segfault errno (%02x)\n",
758 env->error_code);
759 if (loglevel) {
760 fprintf(logfile, "Invalid segfault errno (%02x)\n",
761 env->error_code);
762 }
763 info.si_signo = TARGET_SIGSEGV;
764 info.si_errno = 0;
765 info.si_code = TARGET_SEGV_MAPERR;
766 break;
767 }
768 info._sifields._sigfault._addr = env->nip;
769 queue_signal(info.si_signo, &info);
770 break;
771 case EXCP_ISI:
772 fprintf(stderr, "Invalid instruction fetch\n");
773 if (loglevel)
774 fprintf(logfile, "Invalid instruction fetch\n");
775 switch (env->error_code & 0xFF000000) {
776 case 0x40000000:
777 info.si_signo = TARGET_SIGSEGV;
778 info.si_errno = 0;
779 info.si_code = TARGET_SEGV_MAPERR;
780 break;
781 case 0x10000000:
782 case 0x08000000:
783 info.si_signo = TARGET_SIGSEGV;
784 info.si_errno = 0;
785 info.si_code = TARGET_SEGV_ACCERR;
786 break;
787 default:
788 /* Let's send a regular segfault... */
789 fprintf(stderr, "Invalid segfault errno (%02x)\n",
790 env->error_code);
791 if (loglevel) {
792 fprintf(logfile, "Invalid segfault errno (%02x)\n",
793 env->error_code);
794 }
795 info.si_signo = TARGET_SIGSEGV;
796 info.si_errno = 0;
797 info.si_code = TARGET_SEGV_MAPERR;
798 break;
799 }
800 info._sifields._sigfault._addr = env->nip - 4;
801 queue_signal(info.si_signo, &info);
802 break;
803 case EXCP_EXTERNAL:
804 /* Should not happen ! */
805 fprintf(stderr, "External interruption... Stop emulation\n");
806 if (loglevel)
807 fprintf(logfile, "External interruption... Stop emulation\n");
808 abort();
809 case EXCP_ALIGN:
810 fprintf(stderr, "Invalid unaligned memory access\n");
811 if (loglevel)
812 fprintf(logfile, "Invalid unaligned memory access\n");
813 info.si_signo = TARGET_SIGBUS;
814 info.si_errno = 0;
815 info.si_code = TARGET_BUS_ADRALN;
816 info._sifields._sigfault._addr = env->nip - 4;
817 queue_signal(info.si_signo, &info);
818 break;
819 case EXCP_PROGRAM:
820 switch (env->error_code & ~0xF) {
821 case EXCP_FP:
822 fprintf(stderr, "Program exception\n");
823 if (loglevel)
824 fprintf(logfile, "Program exception\n");
825 /* Set FX */
826 env->fpscr[7] |= 0x8;
827 /* Finally, update FEX */
828 if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
829 ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
830 env->fpscr[7] |= 0x4;
831 info.si_signo = TARGET_SIGFPE;
832 info.si_errno = 0;
833 switch (env->error_code & 0xF) {
834 case EXCP_FP_OX:
835 info.si_code = TARGET_FPE_FLTOVF;
836 break;
837 case EXCP_FP_UX:
838 info.si_code = TARGET_FPE_FLTUND;
839 break;
840 case EXCP_FP_ZX:
841 case EXCP_FP_VXZDZ:
842 info.si_code = TARGET_FPE_FLTDIV;
843 break;
844 case EXCP_FP_XX:
845 info.si_code = TARGET_FPE_FLTRES;
846 break;
847 case EXCP_FP_VXSOFT:
848 info.si_code = TARGET_FPE_FLTINV;
849 break;
850 case EXCP_FP_VXNAN:
851 case EXCP_FP_VXISI:
852 case EXCP_FP_VXIDI:
853 case EXCP_FP_VXIMZ:
854 case EXCP_FP_VXVC:
855 case EXCP_FP_VXSQRT:
856 case EXCP_FP_VXCVI:
857 info.si_code = TARGET_FPE_FLTSUB;
858 break;
859 default:
860 fprintf(stderr, "Unknown floating point exception "
861 "(%02x)\n", env->error_code);
862 if (loglevel) {
863 fprintf(logfile, "Unknown floating point exception "
864 "(%02x)\n", env->error_code & 0xF);
865 }
866 }
867 break;
868 case EXCP_INVAL:
869 fprintf(stderr, "Invalid instruction\n");
870 if (loglevel)
871 fprintf(logfile, "Invalid instruction\n");
872 info.si_signo = TARGET_SIGILL;
873 info.si_errno = 0;
874 switch (env->error_code & 0xF) {
875 case EXCP_INVAL_INVAL:
876 info.si_code = TARGET_ILL_ILLOPC;
877 break;
878 case EXCP_INVAL_LSWX:
879 info.si_code = TARGET_ILL_ILLOPN;
880 break;
881 case EXCP_INVAL_SPR:
882 info.si_code = TARGET_ILL_PRVREG;
883 break;
884 case EXCP_INVAL_FP:
885 info.si_code = TARGET_ILL_COPROC;
886 break;
887 default:
888 fprintf(stderr, "Unknown invalid operation (%02x)\n",
889 env->error_code & 0xF);
890 if (loglevel) {
891 fprintf(logfile, "Unknown invalid operation (%02x)\n",
892 env->error_code & 0xF);
893 }
894 info.si_code = TARGET_ILL_ILLADR;
895 break;
896 }
897 break;
898 case EXCP_PRIV:
899 fprintf(stderr, "Privilege violation\n");
900 if (loglevel)
901 fprintf(logfile, "Privilege violation\n");
902 info.si_signo = TARGET_SIGILL;
903 info.si_errno = 0;
904 switch (env->error_code & 0xF) {
905 case EXCP_PRIV_OPC:
906 info.si_code = TARGET_ILL_PRVOPC;
907 break;
908 case EXCP_PRIV_REG:
909 info.si_code = TARGET_ILL_PRVREG;
910 break;
911 default:
912 fprintf(stderr, "Unknown privilege violation (%02x)\n",
913 env->error_code & 0xF);
914 info.si_code = TARGET_ILL_PRVOPC;
915 break;
916 }
917 break;
918 case EXCP_TRAP:
919 fprintf(stderr, "Tried to call a TRAP\n");
920 if (loglevel)
921 fprintf(logfile, "Tried to call a TRAP\n");
922 abort();
923 default:
924 /* Should not happen ! */
925 fprintf(stderr, "Unknown program exception (%02x)\n",
926 env->error_code);
927 if (loglevel) {
928 fprintf(logfile, "Unknwon program exception (%02x)\n",
929 env->error_code);
930 }
931 abort();
932 }
933 info._sifields._sigfault._addr = env->nip - 4;
934 queue_signal(info.si_signo, &info);
935 break;
936 case EXCP_NO_FP:
937 fprintf(stderr, "No floating point allowed\n");
938 if (loglevel)
939 fprintf(logfile, "No floating point allowed\n");
940 info.si_signo = TARGET_SIGILL;
941 info.si_errno = 0;
942 info.si_code = TARGET_ILL_COPROC;
943 info._sifields._sigfault._addr = env->nip - 4;
944 queue_signal(info.si_signo, &info);
945 break;
946 case EXCP_DECR:
947 /* Should not happen ! */
948 fprintf(stderr, "Decrementer exception\n");
949 if (loglevel)
950 fprintf(logfile, "Decrementer exception\n");
951 abort();
952 case EXCP_TRACE:
953 /* Do nothing: we use this to trace execution */
954 break;
955 case EXCP_FP_ASSIST:
956 /* Should not happen ! */
957 fprintf(stderr, "Floating point assist exception\n");
958 if (loglevel)
959 fprintf(logfile, "Floating point assist exception\n");
960 abort();
961 case EXCP_MTMSR:
962 /* We reloaded the msr, just go on */
963 if (msr_pr == 0) {
964 fprintf(stderr, "Tried to go into supervisor mode !\n");
965 if (loglevel)
966 fprintf(logfile, "Tried to go into supervisor mode !\n");
967 abort();
968 }
969 break;
970 case EXCP_BRANCH:
971 /* We stopped because of a jump... */
972 break;
973 case EXCP_INTERRUPT:
974 /* Don't know why this should ever happen... */
975 break;
976 case EXCP_DEBUG:
977 {
978 int sig;
979
980 sig = gdb_handlesig (env, TARGET_SIGTRAP);
981 if (sig)
982 {
983 info.si_signo = sig;
984 info.si_errno = 0;
985 info.si_code = TARGET_TRAP_BRKPT;
986 queue_signal(info.si_signo, &info);
987 }
988 }
989 break;
990 default:
991 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
992 trapnr);
993 if (loglevel) {
994 fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
995 "0x%02x - aborting\n", trapnr, env->error_code);
996 }
997 abort();
998 }
999 process_pending_signals(env);
1000 }
1001 }
1002 #endif
1003
1004 #ifdef TARGET_MIPS
1005
1006 #define MIPS_SYS(name, args) args,
1007
1008 static const uint8_t mips_syscall_args[] = {
1009 MIPS_SYS(sys_syscall , 0) /* 4000 */
1010 MIPS_SYS(sys_exit , 1)
1011 MIPS_SYS(sys_fork , 0)
1012 MIPS_SYS(sys_read , 3)
1013 MIPS_SYS(sys_write , 3)
1014 MIPS_SYS(sys_open , 3) /* 4005 */
1015 MIPS_SYS(sys_close , 1)
1016 MIPS_SYS(sys_waitpid , 3)
1017 MIPS_SYS(sys_creat , 2)
1018 MIPS_SYS(sys_link , 2)
1019 MIPS_SYS(sys_unlink , 1) /* 4010 */
1020 MIPS_SYS(sys_execve , 0)
1021 MIPS_SYS(sys_chdir , 1)
1022 MIPS_SYS(sys_time , 1)
1023 MIPS_SYS(sys_mknod , 3)
1024 MIPS_SYS(sys_chmod , 2) /* 4015 */
1025 MIPS_SYS(sys_lchown , 3)
1026 MIPS_SYS(sys_ni_syscall , 0)
1027 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1028 MIPS_SYS(sys_lseek , 3)
1029 MIPS_SYS(sys_getpid , 0) /* 4020 */
1030 MIPS_SYS(sys_mount , 5)
1031 MIPS_SYS(sys_oldumount , 1)
1032 MIPS_SYS(sys_setuid , 1)
1033 MIPS_SYS(sys_getuid , 0)
1034 MIPS_SYS(sys_stime , 1) /* 4025 */
1035 MIPS_SYS(sys_ptrace , 4)
1036 MIPS_SYS(sys_alarm , 1)
1037 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1038 MIPS_SYS(sys_pause , 0)
1039 MIPS_SYS(sys_utime , 2) /* 4030 */
1040 MIPS_SYS(sys_ni_syscall , 0)
1041 MIPS_SYS(sys_ni_syscall , 0)
1042 MIPS_SYS(sys_access , 2)
1043 MIPS_SYS(sys_nice , 1)
1044 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1045 MIPS_SYS(sys_sync , 0)
1046 MIPS_SYS(sys_kill , 2)
1047 MIPS_SYS(sys_rename , 2)
1048 MIPS_SYS(sys_mkdir , 2)
1049 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1050 MIPS_SYS(sys_dup , 1)
1051 MIPS_SYS(sys_pipe , 0)
1052 MIPS_SYS(sys_times , 1)
1053 MIPS_SYS(sys_ni_syscall , 0)
1054 MIPS_SYS(sys_brk , 1) /* 4045 */
1055 MIPS_SYS(sys_setgid , 1)
1056 MIPS_SYS(sys_getgid , 0)
1057 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1058 MIPS_SYS(sys_geteuid , 0)
1059 MIPS_SYS(sys_getegid , 0) /* 4050 */
1060 MIPS_SYS(sys_acct , 0)
1061 MIPS_SYS(sys_umount , 2)
1062 MIPS_SYS(sys_ni_syscall , 0)
1063 MIPS_SYS(sys_ioctl , 3)
1064 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1065 MIPS_SYS(sys_ni_syscall , 2)
1066 MIPS_SYS(sys_setpgid , 2)
1067 MIPS_SYS(sys_ni_syscall , 0)
1068 MIPS_SYS(sys_olduname , 1)
1069 MIPS_SYS(sys_umask , 1) /* 4060 */
1070 MIPS_SYS(sys_chroot , 1)
1071 MIPS_SYS(sys_ustat , 2)
1072 MIPS_SYS(sys_dup2 , 2)
1073 MIPS_SYS(sys_getppid , 0)
1074 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1075 MIPS_SYS(sys_setsid , 0)
1076 MIPS_SYS(sys_sigaction , 3)
1077 MIPS_SYS(sys_sgetmask , 0)
1078 MIPS_SYS(sys_ssetmask , 1)
1079 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1080 MIPS_SYS(sys_setregid , 2)
1081 MIPS_SYS(sys_sigsuspend , 0)
1082 MIPS_SYS(sys_sigpending , 1)
1083 MIPS_SYS(sys_sethostname , 2)
1084 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1085 MIPS_SYS(sys_getrlimit , 2)
1086 MIPS_SYS(sys_getrusage , 2)
1087 MIPS_SYS(sys_gettimeofday, 2)
1088 MIPS_SYS(sys_settimeofday, 2)
1089 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1090 MIPS_SYS(sys_setgroups , 2)
1091 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1092 MIPS_SYS(sys_symlink , 2)
1093 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1094 MIPS_SYS(sys_readlink , 3) /* 4085 */
1095 MIPS_SYS(sys_uselib , 1)
1096 MIPS_SYS(sys_swapon , 2)
1097 MIPS_SYS(sys_reboot , 3)
1098 MIPS_SYS(old_readdir , 3)
1099 MIPS_SYS(old_mmap , 6) /* 4090 */
1100 MIPS_SYS(sys_munmap , 2)
1101 MIPS_SYS(sys_truncate , 2)
1102 MIPS_SYS(sys_ftruncate , 2)
1103 MIPS_SYS(sys_fchmod , 2)
1104 MIPS_SYS(sys_fchown , 3) /* 4095 */
1105 MIPS_SYS(sys_getpriority , 2)
1106 MIPS_SYS(sys_setpriority , 3)
1107 MIPS_SYS(sys_ni_syscall , 0)
1108 MIPS_SYS(sys_statfs , 2)
1109 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1110 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1111 MIPS_SYS(sys_socketcall , 2)
1112 MIPS_SYS(sys_syslog , 3)
1113 MIPS_SYS(sys_setitimer , 3)
1114 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1115 MIPS_SYS(sys_newstat , 2)
1116 MIPS_SYS(sys_newlstat , 2)
1117 MIPS_SYS(sys_newfstat , 2)
1118 MIPS_SYS(sys_uname , 1)
1119 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1120 MIPS_SYS(sys_vhangup , 0)
1121 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1122 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1123 MIPS_SYS(sys_wait4 , 4)
1124 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1125 MIPS_SYS(sys_sysinfo , 1)
1126 MIPS_SYS(sys_ipc , 6)
1127 MIPS_SYS(sys_fsync , 1)
1128 MIPS_SYS(sys_sigreturn , 0)
1129 MIPS_SYS(sys_clone , 0) /* 4120 */
1130 MIPS_SYS(sys_setdomainname, 2)
1131 MIPS_SYS(sys_newuname , 1)
1132 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1133 MIPS_SYS(sys_adjtimex , 1)
1134 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1135 MIPS_SYS(sys_sigprocmask , 3)
1136 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1137 MIPS_SYS(sys_init_module , 5)
1138 MIPS_SYS(sys_delete_module, 1)
1139 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1140 MIPS_SYS(sys_quotactl , 0)
1141 MIPS_SYS(sys_getpgid , 1)
1142 MIPS_SYS(sys_fchdir , 1)
1143 MIPS_SYS(sys_bdflush , 2)
1144 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1145 MIPS_SYS(sys_personality , 1)
1146 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1147 MIPS_SYS(sys_setfsuid , 1)
1148 MIPS_SYS(sys_setfsgid , 1)
1149 MIPS_SYS(sys_llseek , 5) /* 4140 */
1150 MIPS_SYS(sys_getdents , 3)
1151 MIPS_SYS(sys_select , 5)
1152 MIPS_SYS(sys_flock , 2)
1153 MIPS_SYS(sys_msync , 3)
1154 MIPS_SYS(sys_readv , 3) /* 4145 */
1155 MIPS_SYS(sys_writev , 3)
1156 MIPS_SYS(sys_cacheflush , 3)
1157 MIPS_SYS(sys_cachectl , 3)
1158 MIPS_SYS(sys_sysmips , 4)
1159 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1160 MIPS_SYS(sys_getsid , 1)
1161 MIPS_SYS(sys_fdatasync , 0)
1162 MIPS_SYS(sys_sysctl , 1)
1163 MIPS_SYS(sys_mlock , 2)
1164 MIPS_SYS(sys_munlock , 2) /* 4155 */
1165 MIPS_SYS(sys_mlockall , 1)
1166 MIPS_SYS(sys_munlockall , 0)
1167 MIPS_SYS(sys_sched_setparam, 2)
1168 MIPS_SYS(sys_sched_getparam, 2)
1169 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1170 MIPS_SYS(sys_sched_getscheduler, 1)
1171 MIPS_SYS(sys_sched_yield , 0)
1172 MIPS_SYS(sys_sched_get_priority_max, 1)
1173 MIPS_SYS(sys_sched_get_priority_min, 1)
1174 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1175 MIPS_SYS(sys_nanosleep, 2)
1176 MIPS_SYS(sys_mremap , 4)
1177 MIPS_SYS(sys_accept , 3)
1178 MIPS_SYS(sys_bind , 3)
1179 MIPS_SYS(sys_connect , 3) /* 4170 */
1180 MIPS_SYS(sys_getpeername , 3)
1181 MIPS_SYS(sys_getsockname , 3)
1182 MIPS_SYS(sys_getsockopt , 5)
1183 MIPS_SYS(sys_listen , 2)
1184 MIPS_SYS(sys_recv , 4) /* 4175 */
1185 MIPS_SYS(sys_recvfrom , 6)
1186 MIPS_SYS(sys_recvmsg , 3)
1187 MIPS_SYS(sys_send , 4)
1188 MIPS_SYS(sys_sendmsg , 3)
1189 MIPS_SYS(sys_sendto , 6) /* 4180 */
1190 MIPS_SYS(sys_setsockopt , 5)
1191 MIPS_SYS(sys_shutdown , 2)
1192 MIPS_SYS(sys_socket , 3)
1193 MIPS_SYS(sys_socketpair , 4)
1194 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1195 MIPS_SYS(sys_getresuid , 3)
1196 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1197 MIPS_SYS(sys_poll , 3)
1198 MIPS_SYS(sys_nfsservctl , 3)
1199 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1200 MIPS_SYS(sys_getresgid , 3)
1201 MIPS_SYS(sys_prctl , 5)
1202 MIPS_SYS(sys_rt_sigreturn, 0)
1203 MIPS_SYS(sys_rt_sigaction, 4)
1204 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1205 MIPS_SYS(sys_rt_sigpending, 2)
1206 MIPS_SYS(sys_rt_sigtimedwait, 4)
1207 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1208 MIPS_SYS(sys_rt_sigsuspend, 0)
1209 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1210 MIPS_SYS(sys_pwrite64 , 6)
1211 MIPS_SYS(sys_chown , 3)
1212 MIPS_SYS(sys_getcwd , 2)
1213 MIPS_SYS(sys_capget , 2)
1214 MIPS_SYS(sys_capset , 2) /* 4205 */
1215 MIPS_SYS(sys_sigaltstack , 0)
1216 MIPS_SYS(sys_sendfile , 4)
1217 MIPS_SYS(sys_ni_syscall , 0)
1218 MIPS_SYS(sys_ni_syscall , 0)
1219 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1220 MIPS_SYS(sys_truncate64 , 4)
1221 MIPS_SYS(sys_ftruncate64 , 4)
1222 MIPS_SYS(sys_stat64 , 2)
1223 MIPS_SYS(sys_lstat64 , 2)
1224 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1225 MIPS_SYS(sys_pivot_root , 2)
1226 MIPS_SYS(sys_mincore , 3)
1227 MIPS_SYS(sys_madvise , 3)
1228 MIPS_SYS(sys_getdents64 , 3)
1229 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1230 MIPS_SYS(sys_ni_syscall , 0)
1231 MIPS_SYS(sys_gettid , 0)
1232 MIPS_SYS(sys_readahead , 5)
1233 MIPS_SYS(sys_setxattr , 5)
1234 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1235 MIPS_SYS(sys_fsetxattr , 5)
1236 MIPS_SYS(sys_getxattr , 4)
1237 MIPS_SYS(sys_lgetxattr , 4)
1238 MIPS_SYS(sys_fgetxattr , 4)
1239 MIPS_SYS(sys_listxattr , 3) /* 4230 */
1240 MIPS_SYS(sys_llistxattr , 3)
1241 MIPS_SYS(sys_flistxattr , 3)
1242 MIPS_SYS(sys_removexattr , 2)
1243 MIPS_SYS(sys_lremovexattr, 2)
1244 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1245 MIPS_SYS(sys_tkill , 2)
1246 MIPS_SYS(sys_sendfile64 , 5)
1247 MIPS_SYS(sys_futex , 2)
1248 MIPS_SYS(sys_sched_setaffinity, 3)
1249 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1250 MIPS_SYS(sys_io_setup , 2)
1251 MIPS_SYS(sys_io_destroy , 1)
1252 MIPS_SYS(sys_io_getevents, 5)
1253 MIPS_SYS(sys_io_submit , 3)
1254 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1255 MIPS_SYS(sys_exit_group , 1)
1256 MIPS_SYS(sys_lookup_dcookie, 3)
1257 MIPS_SYS(sys_epoll_create, 1)
1258 MIPS_SYS(sys_epoll_ctl , 4)
1259 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1260 MIPS_SYS(sys_remap_file_pages, 5)
1261 MIPS_SYS(sys_set_tid_address, 1)
1262 MIPS_SYS(sys_restart_syscall, 0)
1263 MIPS_SYS(sys_fadvise64_64, 7)
1264 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1265 MIPS_SYS(sys_fstatfs64 , 2)
1266 MIPS_SYS(sys_timer_create, 3)
1267 MIPS_SYS(sys_timer_settime, 4)
1268 MIPS_SYS(sys_timer_gettime, 2)
1269 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1270 MIPS_SYS(sys_timer_delete, 1)
1271 MIPS_SYS(sys_clock_settime, 2)
1272 MIPS_SYS(sys_clock_gettime, 2)
1273 MIPS_SYS(sys_clock_getres, 2)
1274 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1275 MIPS_SYS(sys_tgkill , 3)
1276 MIPS_SYS(sys_utimes , 2)
1277 MIPS_SYS(sys_mbind , 4)
1278 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1279 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1280 MIPS_SYS(sys_mq_open , 4)
1281 MIPS_SYS(sys_mq_unlink , 1)
1282 MIPS_SYS(sys_mq_timedsend, 5)
1283 MIPS_SYS(sys_mq_timedreceive, 5)
1284 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1285 MIPS_SYS(sys_mq_getsetattr, 3)
1286 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1287 MIPS_SYS(sys_waitid , 4)
1288 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1289 MIPS_SYS(sys_add_key , 5)
1290 MIPS_SYS(sys_request_key , 4)
1291 MIPS_SYS(sys_keyctl , 5)
1292 };
1293
1294 #undef MIPS_SYS
1295
1296 void cpu_loop(CPUMIPSState *env)
1297 {
1298 target_siginfo_t info;
1299 int trapnr, ret, nb_args;
1300 unsigned int syscall_num;
1301 target_ulong arg5, arg6, sp_reg;
1302
1303 for(;;) {
1304 trapnr = cpu_mips_exec(env);
1305 switch(trapnr) {
1306 case EXCP_SYSCALL:
1307 {
1308 syscall_num = env->gpr[2] - 4000;
1309 env->PC += 4;
1310 if (syscall_num >= sizeof(mips_syscall_args)) {
1311 ret = -ENOSYS;
1312 } else {
1313 nb_args = mips_syscall_args[syscall_num];
1314 if (nb_args >= 5) {
1315 sp_reg = env->gpr[29];
1316 /* these arguments are taken from the stack */
1317 arg5 = tgetl(sp_reg + 16);
1318 if (nb_args >= 6) {
1319 arg6 = tgetl(sp_reg + 20);
1320 } else {
1321 arg6 = 0;
1322 }
1323 } else {
1324 arg5 = 0;
1325 arg6 = 0;
1326 }
1327 ret = do_syscall(env,
1328 env->gpr[2],
1329 env->gpr[4],
1330 env->gpr[5],
1331 env->gpr[6],
1332 env->gpr[7],
1333 arg5,
1334 arg6);
1335 }
1336 if ((unsigned int)ret >= (unsigned int)(-1133)) {
1337 env->gpr[7] = 1; /* error flag */
1338 ret = -ret;
1339 env->gpr[0] = ret;
1340 env->gpr[2] = ret;
1341 } else {
1342 env->gpr[7] = 0; /* error flag */
1343 env->gpr[2] = ret;
1344 }
1345 }
1346 break;
1347 case EXCP_CpU:
1348 case EXCP_RI:
1349 info.si_signo = TARGET_SIGILL;
1350 info.si_errno = 0;
1351 info.si_code = 0;
1352 queue_signal(info.si_signo, &info);
1353 break;
1354 case EXCP_INTERRUPT:
1355 /* just indicate that signals should be handled asap */
1356 break;
1357 default:
1358 // error:
1359 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1360 trapnr);
1361 cpu_dump_state(env, stderr, fprintf, 0);
1362 abort();
1363 }
1364 process_pending_signals(env);
1365 }
1366 }
1367 #endif
1368
1369 #ifdef TARGET_SH4
1370 void cpu_loop (CPUState *env)
1371 {
1372 int trapnr, ret;
1373 target_siginfo_t info;
1374
1375 while (1) {
1376 trapnr = cpu_sh4_exec (env);
1377
1378 switch (trapnr) {
1379 case 0x160:
1380 ret = do_syscall(env,
1381 env->gregs[3],
1382 env->gregs[4],
1383 env->gregs[5],
1384 env->gregs[6],
1385 env->gregs[7],
1386 env->gregs[0],
1387 0);
1388 env->gregs[0] = ret;
1389 env->pc += 2;
1390 break;
1391 case EXCP_DEBUG:
1392 {
1393 int sig;
1394
1395 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1396 if (sig)
1397 {
1398 info.si_signo = sig;
1399 info.si_errno = 0;
1400 info.si_code = TARGET_TRAP_BRKPT;
1401 queue_signal(info.si_signo, &info);
1402 }
1403 }
1404 break;
1405 default:
1406 printf ("Unhandled trap: 0x%x\n", trapnr);
1407 cpu_dump_state(env, stderr, fprintf, 0);
1408 exit (1);
1409 }
1410 process_pending_signals (env);
1411 }
1412 }
1413 #endif
1414
1415 #ifdef TARGET_M68K
1416
1417 void cpu_loop(CPUM68KState *env)
1418 {
1419 int trapnr;
1420 unsigned int n;
1421 target_siginfo_t info;
1422 TaskState *ts = env->opaque;
1423
1424 for(;;) {
1425 trapnr = cpu_m68k_exec(env);
1426 switch(trapnr) {
1427 case EXCP_ILLEGAL:
1428 {
1429 if (ts->sim_syscalls) {
1430 uint16_t nr;
1431 nr = lduw(env->pc + 2);
1432 env->pc += 4;
1433 do_m68k_simcall(env, nr);
1434 } else {
1435 goto do_sigill;
1436 }
1437 }
1438 break;
1439 case EXCP_HALTED:
1440 /* Semihosing syscall. */
1441 env->pc += 2;
1442 do_m68k_semihosting(env, env->dregs[0]);
1443 break;
1444 case EXCP_LINEA:
1445 case EXCP_LINEF:
1446 case EXCP_UNSUPPORTED:
1447 do_sigill:
1448 info.si_signo = SIGILL;
1449 info.si_errno = 0;
1450 info.si_code = TARGET_ILL_ILLOPN;
1451 info._sifields._sigfault._addr = env->pc;
1452 queue_signal(info.si_signo, &info);
1453 break;
1454 case EXCP_TRAP0:
1455 {
1456 ts->sim_syscalls = 0;
1457 n = env->dregs[0];
1458 env->pc += 2;
1459 env->dregs[0] = do_syscall(env,
1460 n,
1461 env->dregs[1],
1462 env->dregs[2],
1463 env->dregs[3],
1464 env->dregs[4],
1465 env->dregs[5],
1466 env->dregs[6]);
1467 }
1468 break;
1469 case EXCP_INTERRUPT:
1470 /* just indicate that signals should be handled asap */
1471 break;
1472 case EXCP_ACCESS:
1473 {
1474 info.si_signo = SIGSEGV;
1475 info.si_errno = 0;
1476 /* XXX: check env->error_code */
1477 info.si_code = TARGET_SEGV_MAPERR;
1478 info._sifields._sigfault._addr = env->mmu.ar;
1479 queue_signal(info.si_signo, &info);
1480 }
1481 break;
1482 case EXCP_DEBUG:
1483 {
1484 int sig;
1485
1486 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1487 if (sig)
1488 {
1489 info.si_signo = sig;
1490 info.si_errno = 0;
1491 info.si_code = TARGET_TRAP_BRKPT;
1492 queue_signal(info.si_signo, &info);
1493 }
1494 }
1495 break;
1496 default:
1497 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1498 trapnr);
1499 cpu_dump_state(env, stderr, fprintf, 0);
1500 abort();
1501 }
1502 process_pending_signals(env);
1503 }
1504 }
1505 #endif /* TARGET_M68K */
1506
1507 void usage(void)
1508 {
1509 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2005 Fabrice Bellard\n"
1510 "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] program [arguments...]\n"
1511 "Linux CPU emulator (compiled for %s emulation)\n"
1512 "\n"
1513 "-h print this help\n"
1514 "-g port wait gdb connection to port\n"
1515 "-L path set the elf interpreter prefix (default=%s)\n"
1516 "-s size set the stack size in bytes (default=%ld)\n"
1517 "\n"
1518 "debug options:\n"
1519 #ifdef USE_CODE_COPY
1520 "-no-code-copy disable code copy acceleration\n"
1521 #endif
1522 "-d options activate log (logfile=%s)\n"
1523 "-p pagesize set the host page size to 'pagesize'\n",
1524 TARGET_ARCH,
1525 interp_prefix,
1526 x86_stack_size,
1527 DEBUG_LOGFILE);
1528 _exit(1);
1529 }
1530
1531 /* XXX: currently only used for async signals (see signal.c) */
1532 CPUState *global_env;
1533
1534 /* used to free thread contexts */
1535 TaskState *first_task_state;
1536
1537 int main(int argc, char **argv)
1538 {
1539 const char *filename;
1540 struct target_pt_regs regs1, *regs = &regs1;
1541 struct image_info info1, *info = &info1;
1542 TaskState ts1, *ts = &ts1;
1543 CPUState *env;
1544 int optind;
1545 const char *r;
1546 int gdbstub_port = 0;
1547
1548 if (argc <= 1)
1549 usage();
1550
1551 /* init debug */
1552 cpu_set_log_filename(DEBUG_LOGFILE);
1553
1554 optind = 1;
1555 for(;;) {
1556 if (optind >= argc)
1557 break;
1558 r = argv[optind];
1559 if (r[0] != '-')
1560 break;
1561 optind++;
1562 r++;
1563 if (!strcmp(r, "-")) {
1564 break;
1565 } else if (!strcmp(r, "d")) {
1566 int mask;
1567 CPULogItem *item;
1568
1569 if (optind >= argc)
1570 break;
1571
1572 r = argv[optind++];
1573 mask = cpu_str_to_log_mask(r);
1574 if (!mask) {
1575 printf("Log items (comma separated):\n");
1576 for(item = cpu_log_items; item->mask != 0; item++) {
1577 printf("%-10s %s\n", item->name, item->help);
1578 }
1579 exit(1);
1580 }
1581 cpu_set_log(mask);
1582 } else if (!strcmp(r, "s")) {
1583 r = argv[optind++];
1584 x86_stack_size = strtol(r, (char **)&r, 0);
1585 if (x86_stack_size <= 0)
1586 usage();
1587 if (*r == 'M')
1588 x86_stack_size *= 1024 * 1024;
1589 else if (*r == 'k' || *r == 'K')
1590 x86_stack_size *= 1024;
1591 } else if (!strcmp(r, "L")) {
1592 interp_prefix = argv[optind++];
1593 } else if (!strcmp(r, "p")) {
1594 qemu_host_page_size = atoi(argv[optind++]);
1595 if (qemu_host_page_size == 0 ||
1596 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
1597 fprintf(stderr, "page size must be a power of two\n");
1598 exit(1);
1599 }
1600 } else if (!strcmp(r, "g")) {
1601 gdbstub_port = atoi(argv[optind++]);
1602 } else if (!strcmp(r, "r")) {
1603 qemu_uname_release = argv[optind++];
1604 } else
1605 #ifdef USE_CODE_COPY
1606 if (!strcmp(r, "no-code-copy")) {
1607 code_copy_enabled = 0;
1608 } else
1609 #endif
1610 {
1611 usage();
1612 }
1613 }
1614 if (optind >= argc)
1615 usage();
1616 filename = argv[optind];
1617
1618 /* Zero out regs */
1619 memset(regs, 0, sizeof(struct target_pt_regs));
1620
1621 /* Zero out image_info */
1622 memset(info, 0, sizeof(struct image_info));
1623
1624 /* Scan interp_prefix dir for replacement files. */
1625 init_paths(interp_prefix);
1626
1627 /* NOTE: we need to init the CPU at this stage to get
1628 qemu_host_page_size */
1629 env = cpu_init();
1630 global_env = env;
1631
1632 if (loader_exec(filename, argv+optind, environ, regs, info) != 0) {
1633 printf("Error loading %s\n", filename);
1634 _exit(1);
1635 }
1636
1637 if (loglevel) {
1638 page_dump(logfile);
1639
1640 fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk);
1641 fprintf(logfile, "end_code 0x%08lx\n" , info->end_code);
1642 fprintf(logfile, "start_code 0x%08lx\n" , info->start_code);
1643 fprintf(logfile, "start_data 0x%08lx\n" , info->start_data);
1644 fprintf(logfile, "end_data 0x%08lx\n" , info->end_data);
1645 fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack);
1646 fprintf(logfile, "brk 0x%08lx\n" , info->brk);
1647 fprintf(logfile, "entry 0x%08lx\n" , info->entry);
1648 }
1649
1650 target_set_brk(info->brk);
1651 syscall_init();
1652 signal_init();
1653
1654 /* build Task State */
1655 memset(ts, 0, sizeof(TaskState));
1656 env->opaque = ts;
1657 ts->used = 1;
1658 ts->info = info;
1659 env->user_mode_only = 1;
1660
1661 #if defined(TARGET_I386)
1662 cpu_x86_set_cpl(env, 3);
1663
1664 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
1665 env->hflags |= HF_PE_MASK;
1666 if (env->cpuid_features & CPUID_SSE) {
1667 env->cr[4] |= CR4_OSFXSR_MASK;
1668 env->hflags |= HF_OSFXSR_MASK;
1669 }
1670
1671 /* flags setup : we activate the IRQs by default as in user mode */
1672 env->eflags |= IF_MASK;
1673
1674 /* linux register setup */
1675 env->regs[R_EAX] = regs->eax;
1676 env->regs[R_EBX] = regs->ebx;
1677 env->regs[R_ECX] = regs->ecx;
1678 env->regs[R_EDX] = regs->edx;
1679 env->regs[R_ESI] = regs->esi;
1680 env->regs[R_EDI] = regs->edi;
1681 env->regs[R_EBP] = regs->ebp;
1682 env->regs[R_ESP] = regs->esp;
1683 env->eip = regs->eip;
1684
1685 /* linux interrupt setup */
1686 env->idt.base = h2g(idt_table);
1687 env->idt.limit = sizeof(idt_table) - 1;
1688 set_idt(0, 0);
1689 set_idt(1, 0);
1690 set_idt(2, 0);
1691 set_idt(3, 3);
1692 set_idt(4, 3);
1693 set_idt(5, 3);
1694 set_idt(6, 0);
1695 set_idt(7, 0);
1696 set_idt(8, 0);
1697 set_idt(9, 0);
1698 set_idt(10, 0);
1699 set_idt(11, 0);
1700 set_idt(12, 0);
1701 set_idt(13, 0);
1702 set_idt(14, 0);
1703 set_idt(15, 0);
1704 set_idt(16, 0);
1705 set_idt(17, 0);
1706 set_idt(18, 0);
1707 set_idt(19, 0);
1708 set_idt(0x80, 3);
1709
1710 /* linux segment setup */
1711 env->gdt.base = h2g(gdt_table);
1712 env->gdt.limit = sizeof(gdt_table) - 1;
1713 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
1714 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1715 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
1716 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
1717 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1718 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
1719 cpu_x86_load_seg(env, R_CS, __USER_CS);
1720 cpu_x86_load_seg(env, R_DS, __USER_DS);
1721 cpu_x86_load_seg(env, R_ES, __USER_DS);
1722 cpu_x86_load_seg(env, R_SS, __USER_DS);
1723 cpu_x86_load_seg(env, R_FS, __USER_DS);
1724 cpu_x86_load_seg(env, R_GS, __USER_DS);
1725
1726 #elif defined(TARGET_ARM)
1727 {
1728 int i;
1729 cpu_arm_set_model(env, ARM_CPUID_ARM1026);
1730 cpsr_write(env, regs->uregs[16], 0xffffffff);
1731 for(i = 0; i < 16; i++) {
1732 env->regs[i] = regs->uregs[i];
1733 }
1734 ts->stack_base = info->start_stack;
1735 ts->heap_base = info->brk;
1736 /* This will be filled in on the first SYS_HEAPINFO call. */
1737 ts->heap_limit = 0;
1738 }
1739 #elif defined(TARGET_SPARC)
1740 {
1741 int i;
1742 env->pc = regs->pc;
1743 env->npc = regs->npc;
1744 env->y = regs->y;
1745 for(i = 0; i < 8; i++)
1746 env->gregs[i] = regs->u_regs[i];
1747 for(i = 0; i < 8; i++)
1748 env->regwptr[i] = regs->u_regs[i + 8];
1749 }
1750 #elif defined(TARGET_PPC)
1751 {
1752 ppc_def_t *def;
1753 int i;
1754
1755 /* Choose and initialise CPU */
1756 /* XXX: CPU model (or PVR) should be provided on command line */
1757 // ppc_find_by_name("750gx", &def);
1758 // ppc_find_by_name("750fx", &def);
1759 // ppc_find_by_name("750p", &def);
1760 ppc_find_by_name("750", &def);
1761 // ppc_find_by_name("G3", &def);
1762 // ppc_find_by_name("604r", &def);
1763 // ppc_find_by_name("604e", &def);
1764 // ppc_find_by_name("604", &def);
1765 if (def == NULL) {
1766 cpu_abort(env,
1767 "Unable to find PowerPC CPU definition\n");
1768 }
1769 cpu_ppc_register(env, def);
1770
1771 for (i = 0; i < 32; i++) {
1772 if (i != 12 && i != 6 && i != 13)
1773 env->msr[i] = (regs->msr >> i) & 1;
1774 }
1775 env->nip = regs->nip;
1776 for(i = 0; i < 32; i++) {
1777 env->gpr[i] = regs->gpr[i];
1778 }
1779 }
1780 #elif defined(TARGET_M68K)
1781 {
1782 m68k_def_t *def;
1783 def = m68k_find_by_name("cfv4e");
1784 if (def == NULL) {
1785 cpu_abort(cpu_single_env,
1786 "Unable to find m68k CPU definition\n");
1787 }
1788 cpu_m68k_register(cpu_single_env, def);
1789 env->pc = regs->pc;
1790 env->dregs[0] = regs->d0;
1791 env->dregs[1] = regs->d1;
1792 env->dregs[2] = regs->d2;
1793 env->dregs[3] = regs->d3;
1794 env->dregs[4] = regs->d4;
1795 env->dregs[5] = regs->d5;
1796 env->dregs[6] = regs->d6;
1797 env->dregs[7] = regs->d7;
1798 env->aregs[0] = regs->a0;
1799 env->aregs[1] = regs->a1;
1800 env->aregs[2] = regs->a2;
1801 env->aregs[3] = regs->a3;
1802 env->aregs[4] = regs->a4;
1803 env->aregs[5] = regs->a5;
1804 env->aregs[6] = regs->a6;
1805 env->aregs[7] = regs->usp;
1806 env->sr = regs->sr;
1807 ts->sim_syscalls = 1;
1808 }
1809 #elif defined(TARGET_MIPS)
1810 {
1811 int i;
1812
1813 for(i = 0; i < 32; i++) {
1814 env->gpr[i] = regs->regs[i];
1815 }
1816 env->PC = regs->cp0_epc;
1817 #ifdef MIPS_USES_FPU
1818 env->CP0_Status |= (1 << CP0St_CU1);
1819 #endif
1820 }
1821 #elif defined(TARGET_SH4)
1822 {
1823 int i;
1824
1825 for(i = 0; i < 16; i++) {
1826 env->gregs[i] = regs->regs[i];
1827 }
1828 env->pc = regs->pc;
1829 }
1830 #else
1831 #error unsupported target CPU
1832 #endif
1833
1834 if (gdbstub_port) {
1835 gdbserver_start (gdbstub_port);
1836 gdb_handlesig(env, 0);
1837 }
1838 cpu_loop(env);
1839 /* never exits */
1840 return 0;
1841 }
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