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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
38 #if defined(__i386__) && !defined(CONFIG_STATIC)
39 /* Force usage of an ELF interpreter even if it is an ELF shared
40 object ! */
41 const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
42 #endif
43
44 /* for recent libc, we add these dummy symbols which are not declared
45 when generating a linked object (bug in ld ?) */
46 #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC)
47 long __preinit_array_start[0];
48 long __preinit_array_end[0];
49 long __init_array_start[0];
50 long __init_array_end[0];
51 long __fini_array_start[0];
52 long __fini_array_end[0];
53 #endif
54
55 /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
56 we allocate a bigger stack. Need a better solution, for example
57 by remapping the process stack directly at the right place */
58 unsigned long x86_stack_size = 512 * 1024;
59
60 void gemu_log(const char *fmt, ...)
61 {
62 va_list ap;
63
64 va_start(ap, fmt);
65 vfprintf(stderr, fmt, ap);
66 va_end(ap);
67 }
68
69 void cpu_outb(CPUState *env, int addr, int val)
70 {
71 fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
72 }
73
74 void cpu_outw(CPUState *env, int addr, int val)
75 {
76 fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
77 }
78
79 void cpu_outl(CPUState *env, int addr, int val)
80 {
81 fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
82 }
83
84 int cpu_inb(CPUState *env, int addr)
85 {
86 fprintf(stderr, "inb: port=0x%04x\n", addr);
87 return 0;
88 }
89
90 int cpu_inw(CPUState *env, int addr)
91 {
92 fprintf(stderr, "inw: port=0x%04x\n", addr);
93 return 0;
94 }
95
96 int cpu_inl(CPUState *env, int addr)
97 {
98 fprintf(stderr, "inl: port=0x%04x\n", addr);
99 return 0;
100 }
101
102 int cpu_get_pic_interrupt(CPUState *env)
103 {
104 return -1;
105 }
106
107 /* timers for rdtsc */
108
109 #if defined(__i386__)
110
111 int64_t cpu_get_real_ticks(void)
112 {
113 int64_t val;
114 asm volatile ("rdtsc" : "=A" (val));
115 return val;
116 }
117
118 #elif defined(__x86_64__)
119
120 int64_t cpu_get_real_ticks(void)
121 {
122 uint32_t low,high;
123 int64_t val;
124 asm volatile("rdtsc" : "=a" (low), "=d" (high));
125 val = high;
126 val <<= 32;
127 val |= low;
128 return val;
129 }
130
131 #else
132
133 static uint64_t emu_time;
134
135 int64_t cpu_get_real_ticks(void)
136 {
137 return emu_time++;
138 }
139
140 #endif
141
142 #ifdef TARGET_I386
143 /***********************************************************/
144 /* CPUX86 core interface */
145
146 uint64_t cpu_get_tsc(CPUX86State *env)
147 {
148 return cpu_get_real_ticks();
149 }
150
151 static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
152 int flags)
153 {
154 unsigned int e1, e2;
155 e1 = (addr << 16) | (limit & 0xffff);
156 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
157 e2 |= flags;
158 stl((uint8_t *)ptr, e1);
159 stl((uint8_t *)ptr + 4, e2);
160 }
161
162 static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
163 unsigned long addr, unsigned int sel)
164 {
165 unsigned int e1, e2;
166 e1 = (addr & 0xffff) | (sel << 16);
167 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
168 stl((uint8_t *)ptr, e1);
169 stl((uint8_t *)ptr + 4, e2);
170 }
171
172 uint64_t gdt_table[6];
173 uint64_t idt_table[256];
174
175 /* only dpl matters as we do only user space emulation */
176 static void set_idt(int n, unsigned int dpl)
177 {
178 set_gate(idt_table + n, 0, dpl, 0, 0);
179 }
180
181 void cpu_loop(CPUX86State *env)
182 {
183 int trapnr;
184 target_ulong pc;
185 target_siginfo_t info;
186
187 for(;;) {
188 trapnr = cpu_x86_exec(env);
189 switch(trapnr) {
190 case 0x80:
191 /* linux syscall */
192 env->regs[R_EAX] = do_syscall(env,
193 env->regs[R_EAX],
194 env->regs[R_EBX],
195 env->regs[R_ECX],
196 env->regs[R_EDX],
197 env->regs[R_ESI],
198 env->regs[R_EDI],
199 env->regs[R_EBP]);
200 break;
201 case EXCP0B_NOSEG:
202 case EXCP0C_STACK:
203 info.si_signo = SIGBUS;
204 info.si_errno = 0;
205 info.si_code = TARGET_SI_KERNEL;
206 info._sifields._sigfault._addr = 0;
207 queue_signal(info.si_signo, &info);
208 break;
209 case EXCP0D_GPF:
210 if (env->eflags & VM_MASK) {
211 handle_vm86_fault(env);
212 } else {
213 info.si_signo = SIGSEGV;
214 info.si_errno = 0;
215 info.si_code = TARGET_SI_KERNEL;
216 info._sifields._sigfault._addr = 0;
217 queue_signal(info.si_signo, &info);
218 }
219 break;
220 case EXCP0E_PAGE:
221 info.si_signo = SIGSEGV;
222 info.si_errno = 0;
223 if (!(env->error_code & 1))
224 info.si_code = TARGET_SEGV_MAPERR;
225 else
226 info.si_code = TARGET_SEGV_ACCERR;
227 info._sifields._sigfault._addr = env->cr[2];
228 queue_signal(info.si_signo, &info);
229 break;
230 case EXCP00_DIVZ:
231 if (env->eflags & VM_MASK) {
232 handle_vm86_trap(env, trapnr);
233 } else {
234 /* division by zero */
235 info.si_signo = SIGFPE;
236 info.si_errno = 0;
237 info.si_code = TARGET_FPE_INTDIV;
238 info._sifields._sigfault._addr = env->eip;
239 queue_signal(info.si_signo, &info);
240 }
241 break;
242 case EXCP01_SSTP:
243 case EXCP03_INT3:
244 if (env->eflags & VM_MASK) {
245 handle_vm86_trap(env, trapnr);
246 } else {
247 info.si_signo = SIGTRAP;
248 info.si_errno = 0;
249 if (trapnr == EXCP01_SSTP) {
250 info.si_code = TARGET_TRAP_BRKPT;
251 info._sifields._sigfault._addr = env->eip;
252 } else {
253 info.si_code = TARGET_SI_KERNEL;
254 info._sifields._sigfault._addr = 0;
255 }
256 queue_signal(info.si_signo, &info);
257 }
258 break;
259 case EXCP04_INTO:
260 case EXCP05_BOUND:
261 if (env->eflags & VM_MASK) {
262 handle_vm86_trap(env, trapnr);
263 } else {
264 info.si_signo = SIGSEGV;
265 info.si_errno = 0;
266 info.si_code = TARGET_SI_KERNEL;
267 info._sifields._sigfault._addr = 0;
268 queue_signal(info.si_signo, &info);
269 }
270 break;
271 case EXCP06_ILLOP:
272 info.si_signo = SIGILL;
273 info.si_errno = 0;
274 info.si_code = TARGET_ILL_ILLOPN;
275 info._sifields._sigfault._addr = env->eip;
276 queue_signal(info.si_signo, &info);
277 break;
278 case EXCP_INTERRUPT:
279 /* just indicate that signals should be handled asap */
280 break;
281 case EXCP_DEBUG:
282 {
283 int sig;
284
285 sig = gdb_handlesig (env, TARGET_SIGTRAP);
286 if (sig)
287 {
288 info.si_signo = sig;
289 info.si_errno = 0;
290 info.si_code = TARGET_TRAP_BRKPT;
291 queue_signal(info.si_signo, &info);
292 }
293 }
294 break;
295 default:
296 pc = env->segs[R_CS].base + env->eip;
297 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
298 (long)pc, trapnr);
299 abort();
300 }
301 process_pending_signals(env);
302 }
303 }
304 #endif
305
306 #ifdef TARGET_ARM
307
308 /* XXX: find a better solution */
309 extern void tb_invalidate_page_range(target_ulong start, target_ulong end);
310
311 static void arm_cache_flush(target_ulong start, target_ulong last)
312 {
313 target_ulong addr, last1;
314
315 if (last < start)
316 return;
317 addr = start;
318 for(;;) {
319 last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
320 if (last1 > last)
321 last1 = last;
322 tb_invalidate_page_range(addr, last1 + 1);
323 if (last1 == last)
324 break;
325 addr = last1 + 1;
326 }
327 }
328
329 void cpu_loop(CPUARMState *env)
330 {
331 int trapnr;
332 unsigned int n, insn;
333 target_siginfo_t info;
334 uint32_t addr;
335
336 for(;;) {
337 trapnr = cpu_arm_exec(env);
338 switch(trapnr) {
339 case EXCP_UDEF:
340 {
341 TaskState *ts = env->opaque;
342 uint32_t opcode;
343
344 /* we handle the FPU emulation here, as Linux */
345 /* we get the opcode */
346 opcode = ldl_raw((uint8_t *)env->regs[15]);
347
348 if (EmulateAll(opcode, &ts->fpa, env->regs) == 0) {
349 info.si_signo = SIGILL;
350 info.si_errno = 0;
351 info.si_code = TARGET_ILL_ILLOPN;
352 info._sifields._sigfault._addr = env->regs[15];
353 queue_signal(info.si_signo, &info);
354 } else {
355 /* increment PC */
356 env->regs[15] += 4;
357 }
358 }
359 break;
360 case EXCP_SWI:
361 {
362 /* system call */
363 if (env->thumb) {
364 insn = lduw((void *)(env->regs[15] - 2));
365 n = insn & 0xff;
366 } else {
367 insn = ldl((void *)(env->regs[15] - 4));
368 n = insn & 0xffffff;
369 }
370
371 if (n == ARM_NR_cacheflush) {
372 arm_cache_flush(env->regs[0], env->regs[1]);
373 } else if (n == ARM_NR_semihosting
374 || n == ARM_NR_thumb_semihosting) {
375 env->regs[0] = do_arm_semihosting (env);
376 } else if (n >= ARM_SYSCALL_BASE
377 || (env->thumb && n == ARM_THUMB_SYSCALL)) {
378 /* linux syscall */
379 if (env->thumb) {
380 n = env->regs[7];
381 } else {
382 n -= ARM_SYSCALL_BASE;
383 }
384 env->regs[0] = do_syscall(env,
385 n,
386 env->regs[0],
387 env->regs[1],
388 env->regs[2],
389 env->regs[3],
390 env->regs[4],
391 env->regs[5]);
392 } else {
393 goto error;
394 }
395 }
396 break;
397 case EXCP_INTERRUPT:
398 /* just indicate that signals should be handled asap */
399 break;
400 case EXCP_PREFETCH_ABORT:
401 addr = env->cp15.c6_data;
402 goto do_segv;
403 case EXCP_DATA_ABORT:
404 addr = env->cp15.c6_insn;
405 goto do_segv;
406 do_segv:
407 {
408 info.si_signo = SIGSEGV;
409 info.si_errno = 0;
410 /* XXX: check env->error_code */
411 info.si_code = TARGET_SEGV_MAPERR;
412 info._sifields._sigfault._addr = addr;
413 queue_signal(info.si_signo, &info);
414 }
415 break;
416 case EXCP_DEBUG:
417 {
418 int sig;
419
420 sig = gdb_handlesig (env, TARGET_SIGTRAP);
421 if (sig)
422 {
423 info.si_signo = sig;
424 info.si_errno = 0;
425 info.si_code = TARGET_TRAP_BRKPT;
426 queue_signal(info.si_signo, &info);
427 }
428 }
429 break;
430 default:
431 error:
432 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
433 trapnr);
434 cpu_dump_state(env, stderr, fprintf, 0);
435 abort();
436 }
437 process_pending_signals(env);
438 }
439 }
440
441 #endif
442
443 #ifdef TARGET_SPARC
444
445 //#define DEBUG_WIN
446
447 /* WARNING: dealing with register windows _is_ complicated. More info
448 can be found at http://www.sics.se/~psm/sparcstack.html */
449 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
450 {
451 index = (index + cwp * 16) & (16 * NWINDOWS - 1);
452 /* wrap handling : if cwp is on the last window, then we use the
453 registers 'after' the end */
454 if (index < 8 && env->cwp == (NWINDOWS - 1))
455 index += (16 * NWINDOWS);
456 return index;
457 }
458
459 /* save the register window 'cwp1' */
460 static inline void save_window_offset(CPUSPARCState *env, int cwp1)
461 {
462 unsigned int i;
463 uint32_t *sp_ptr;
464
465 sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]);
466 #if defined(DEBUG_WIN)
467 printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
468 (int)sp_ptr, cwp1);
469 #endif
470 for(i = 0; i < 16; i++) {
471 put_user(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
472 sp_ptr++;
473 }
474 }
475
476 static void save_window(CPUSPARCState *env)
477 {
478 unsigned int new_wim;
479 new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
480 ((1LL << NWINDOWS) - 1);
481 save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
482 env->wim = new_wim;
483 }
484
485 static void restore_window(CPUSPARCState *env)
486 {
487 unsigned int new_wim, i, cwp1;
488 uint32_t *sp_ptr, reg;
489
490 new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
491 ((1LL << NWINDOWS) - 1);
492
493 /* restore the invalid window */
494 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
495 sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]);
496 #if defined(DEBUG_WIN)
497 printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
498 (int)sp_ptr, cwp1);
499 #endif
500 for(i = 0; i < 16; i++) {
501 get_user(reg, sp_ptr);
502 env->regbase[get_reg_index(env, cwp1, 8 + i)] = reg;
503 sp_ptr++;
504 }
505 env->wim = new_wim;
506 }
507
508 static void flush_windows(CPUSPARCState *env)
509 {
510 int offset, cwp1;
511
512 offset = 1;
513 for(;;) {
514 /* if restore would invoke restore_window(), then we can stop */
515 cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
516 if (env->wim & (1 << cwp1))
517 break;
518 save_window_offset(env, cwp1);
519 offset++;
520 }
521 /* set wim so that restore will reload the registers */
522 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
523 env->wim = 1 << cwp1;
524 #if defined(DEBUG_WIN)
525 printf("flush_windows: nb=%d\n", offset - 1);
526 #endif
527 }
528
529 void cpu_loop (CPUSPARCState *env)
530 {
531 int trapnr, ret;
532 target_siginfo_t info;
533
534 while (1) {
535 trapnr = cpu_sparc_exec (env);
536
537 switch (trapnr) {
538 case 0x88:
539 case 0x90:
540 ret = do_syscall (env, env->gregs[1],
541 env->regwptr[0], env->regwptr[1],
542 env->regwptr[2], env->regwptr[3],
543 env->regwptr[4], env->regwptr[5]);
544 if ((unsigned int)ret >= (unsigned int)(-515)) {
545 env->psr |= PSR_CARRY;
546 ret = -ret;
547 } else {
548 env->psr &= ~PSR_CARRY;
549 }
550 env->regwptr[0] = ret;
551 /* next instruction */
552 env->pc = env->npc;
553 env->npc = env->npc + 4;
554 break;
555 case 0x83: /* flush windows */
556 flush_windows(env);
557 /* next instruction */
558 env->pc = env->npc;
559 env->npc = env->npc + 4;
560 break;
561 #ifndef TARGET_SPARC64
562 case TT_WIN_OVF: /* window overflow */
563 save_window(env);
564 break;
565 case TT_WIN_UNF: /* window underflow */
566 restore_window(env);
567 break;
568 case TT_TFAULT:
569 case TT_DFAULT:
570 {
571 info.si_signo = SIGSEGV;
572 info.si_errno = 0;
573 /* XXX: check env->error_code */
574 info.si_code = TARGET_SEGV_MAPERR;
575 info._sifields._sigfault._addr = env->mmuregs[4];
576 queue_signal(info.si_signo, &info);
577 }
578 break;
579 #else
580 // XXX
581 #endif
582 case 0x100: // XXX, why do we get these?
583 break;
584 case EXCP_DEBUG:
585 {
586 int sig;
587
588 sig = gdb_handlesig (env, TARGET_SIGTRAP);
589 if (sig)
590 {
591 info.si_signo = sig;
592 info.si_errno = 0;
593 info.si_code = TARGET_TRAP_BRKPT;
594 queue_signal(info.si_signo, &info);
595 }
596 }
597 break;
598 default:
599 printf ("Unhandled trap: 0x%x\n", trapnr);
600 cpu_dump_state(env, stderr, fprintf, 0);
601 exit (1);
602 }
603 process_pending_signals (env);
604 }
605 }
606
607 #endif
608
609 #ifdef TARGET_PPC
610
611 static inline uint64_t cpu_ppc_get_tb (CPUState *env)
612 {
613 /* TO FIX */
614 return 0;
615 }
616
617 uint32_t cpu_ppc_load_tbl (CPUState *env)
618 {
619 return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
620 }
621
622 uint32_t cpu_ppc_load_tbu (CPUState *env)
623 {
624 return cpu_ppc_get_tb(env) >> 32;
625 }
626
627 static void cpu_ppc_store_tb (CPUState *env, uint64_t value)
628 {
629 /* TO FIX */
630 }
631
632 void cpu_ppc_store_tbu (CPUState *env, uint32_t value)
633 {
634 cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env));
635 }
636
637 void cpu_ppc_store_tbl (CPUState *env, uint32_t value)
638 {
639 cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value);
640 }
641
642 uint32_t cpu_ppc_load_decr (CPUState *env)
643 {
644 /* TO FIX */
645 return -1;
646 }
647
648 void cpu_ppc_store_decr (CPUState *env, uint32_t value)
649 {
650 /* TO FIX */
651 }
652
653 void cpu_loop(CPUPPCState *env)
654 {
655 target_siginfo_t info;
656 int trapnr;
657 uint32_t ret;
658
659 for(;;) {
660 trapnr = cpu_ppc_exec(env);
661 if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
662 trapnr != EXCP_TRACE) {
663 if (loglevel > 0) {
664 cpu_dump_state(env, logfile, fprintf, 0);
665 }
666 }
667 switch(trapnr) {
668 case EXCP_NONE:
669 break;
670 case EXCP_SYSCALL_USER:
671 /* system call */
672 /* WARNING:
673 * PPC ABI uses overflow flag in cr0 to signal an error
674 * in syscalls.
675 */
676 #if 0
677 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
678 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
679 #endif
680 env->crf[0] &= ~0x1;
681 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
682 env->gpr[5], env->gpr[6], env->gpr[7],
683 env->gpr[8]);
684 if (ret > (uint32_t)(-515)) {
685 env->crf[0] |= 0x1;
686 ret = -ret;
687 }
688 env->gpr[3] = ret;
689 #if 0
690 printf("syscall returned 0x%08x (%d)\n", ret, ret);
691 #endif
692 break;
693 case EXCP_RESET:
694 /* Should not happen ! */
695 fprintf(stderr, "RESET asked... Stop emulation\n");
696 if (loglevel)
697 fprintf(logfile, "RESET asked... Stop emulation\n");
698 abort();
699 case EXCP_MACHINE_CHECK:
700 fprintf(stderr, "Machine check exeption... Stop emulation\n");
701 if (loglevel)
702 fprintf(logfile, "RESET asked... Stop emulation\n");
703 info.si_signo = TARGET_SIGBUS;
704 info.si_errno = 0;
705 info.si_code = TARGET_BUS_OBJERR;
706 info._sifields._sigfault._addr = env->nip - 4;
707 queue_signal(info.si_signo, &info);
708 case EXCP_DSI:
709 fprintf(stderr, "Invalid data memory access: 0x%08x\n",
710 env->spr[SPR_DAR]);
711 if (loglevel) {
712 fprintf(logfile, "Invalid data memory access: 0x%08x\n",
713 env->spr[SPR_DAR]);
714 }
715 switch (env->error_code & 0xFF000000) {
716 case 0x40000000:
717 info.si_signo = TARGET_SIGSEGV;
718 info.si_errno = 0;
719 info.si_code = TARGET_SEGV_MAPERR;
720 break;
721 case 0x04000000:
722 info.si_signo = TARGET_SIGILL;
723 info.si_errno = 0;
724 info.si_code = TARGET_ILL_ILLADR;
725 break;
726 case 0x08000000:
727 info.si_signo = TARGET_SIGSEGV;
728 info.si_errno = 0;
729 info.si_code = TARGET_SEGV_ACCERR;
730 break;
731 default:
732 /* Let's send a regular segfault... */
733 fprintf(stderr, "Invalid segfault errno (%02x)\n",
734 env->error_code);
735 if (loglevel) {
736 fprintf(logfile, "Invalid segfault errno (%02x)\n",
737 env->error_code);
738 }
739 info.si_signo = TARGET_SIGSEGV;
740 info.si_errno = 0;
741 info.si_code = TARGET_SEGV_MAPERR;
742 break;
743 }
744 info._sifields._sigfault._addr = env->nip;
745 queue_signal(info.si_signo, &info);
746 break;
747 case EXCP_ISI:
748 fprintf(stderr, "Invalid instruction fetch\n");
749 if (loglevel)
750 fprintf(logfile, "Invalid instruction fetch\n");
751 switch (env->error_code & 0xFF000000) {
752 case 0x40000000:
753 info.si_signo = TARGET_SIGSEGV;
754 info.si_errno = 0;
755 info.si_code = TARGET_SEGV_MAPERR;
756 break;
757 case 0x10000000:
758 case 0x08000000:
759 info.si_signo = TARGET_SIGSEGV;
760 info.si_errno = 0;
761 info.si_code = TARGET_SEGV_ACCERR;
762 break;
763 default:
764 /* Let's send a regular segfault... */
765 fprintf(stderr, "Invalid segfault errno (%02x)\n",
766 env->error_code);
767 if (loglevel) {
768 fprintf(logfile, "Invalid segfault errno (%02x)\n",
769 env->error_code);
770 }
771 info.si_signo = TARGET_SIGSEGV;
772 info.si_errno = 0;
773 info.si_code = TARGET_SEGV_MAPERR;
774 break;
775 }
776 info._sifields._sigfault._addr = env->nip - 4;
777 queue_signal(info.si_signo, &info);
778 break;
779 case EXCP_EXTERNAL:
780 /* Should not happen ! */
781 fprintf(stderr, "External interruption... Stop emulation\n");
782 if (loglevel)
783 fprintf(logfile, "External interruption... Stop emulation\n");
784 abort();
785 case EXCP_ALIGN:
786 fprintf(stderr, "Invalid unaligned memory access\n");
787 if (loglevel)
788 fprintf(logfile, "Invalid unaligned memory access\n");
789 info.si_signo = TARGET_SIGBUS;
790 info.si_errno = 0;
791 info.si_code = TARGET_BUS_ADRALN;
792 info._sifields._sigfault._addr = env->nip - 4;
793 queue_signal(info.si_signo, &info);
794 break;
795 case EXCP_PROGRAM:
796 switch (env->error_code & ~0xF) {
797 case EXCP_FP:
798 fprintf(stderr, "Program exception\n");
799 if (loglevel)
800 fprintf(logfile, "Program exception\n");
801 /* Set FX */
802 env->fpscr[7] |= 0x8;
803 /* Finally, update FEX */
804 if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
805 ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
806 env->fpscr[7] |= 0x4;
807 info.si_signo = TARGET_SIGFPE;
808 info.si_errno = 0;
809 switch (env->error_code & 0xF) {
810 case EXCP_FP_OX:
811 info.si_code = TARGET_FPE_FLTOVF;
812 break;
813 case EXCP_FP_UX:
814 info.si_code = TARGET_FPE_FLTUND;
815 break;
816 case EXCP_FP_ZX:
817 case EXCP_FP_VXZDZ:
818 info.si_code = TARGET_FPE_FLTDIV;
819 break;
820 case EXCP_FP_XX:
821 info.si_code = TARGET_FPE_FLTRES;
822 break;
823 case EXCP_FP_VXSOFT:
824 info.si_code = TARGET_FPE_FLTINV;
825 break;
826 case EXCP_FP_VXNAN:
827 case EXCP_FP_VXISI:
828 case EXCP_FP_VXIDI:
829 case EXCP_FP_VXIMZ:
830 case EXCP_FP_VXVC:
831 case EXCP_FP_VXSQRT:
832 case EXCP_FP_VXCVI:
833 info.si_code = TARGET_FPE_FLTSUB;
834 break;
835 default:
836 fprintf(stderr, "Unknown floating point exception "
837 "(%02x)\n", env->error_code);
838 if (loglevel) {
839 fprintf(logfile, "Unknown floating point exception "
840 "(%02x)\n", env->error_code & 0xF);
841 }
842 }
843 break;
844 case EXCP_INVAL:
845 fprintf(stderr, "Invalid instruction\n");
846 if (loglevel)
847 fprintf(logfile, "Invalid instruction\n");
848 info.si_signo = TARGET_SIGILL;
849 info.si_errno = 0;
850 switch (env->error_code & 0xF) {
851 case EXCP_INVAL_INVAL:
852 info.si_code = TARGET_ILL_ILLOPC;
853 break;
854 case EXCP_INVAL_LSWX:
855 info.si_code = TARGET_ILL_ILLOPN;
856 break;
857 case EXCP_INVAL_SPR:
858 info.si_code = TARGET_ILL_PRVREG;
859 break;
860 case EXCP_INVAL_FP:
861 info.si_code = TARGET_ILL_COPROC;
862 break;
863 default:
864 fprintf(stderr, "Unknown invalid operation (%02x)\n",
865 env->error_code & 0xF);
866 if (loglevel) {
867 fprintf(logfile, "Unknown invalid operation (%02x)\n",
868 env->error_code & 0xF);
869 }
870 info.si_code = TARGET_ILL_ILLADR;
871 break;
872 }
873 break;
874 case EXCP_PRIV:
875 fprintf(stderr, "Privilege violation\n");
876 if (loglevel)
877 fprintf(logfile, "Privilege violation\n");
878 info.si_signo = TARGET_SIGILL;
879 info.si_errno = 0;
880 switch (env->error_code & 0xF) {
881 case EXCP_PRIV_OPC:
882 info.si_code = TARGET_ILL_PRVOPC;
883 break;
884 case EXCP_PRIV_REG:
885 info.si_code = TARGET_ILL_PRVREG;
886 break;
887 default:
888 fprintf(stderr, "Unknown privilege violation (%02x)\n",
889 env->error_code & 0xF);
890 info.si_code = TARGET_ILL_PRVOPC;
891 break;
892 }
893 break;
894 case EXCP_TRAP:
895 fprintf(stderr, "Tried to call a TRAP\n");
896 if (loglevel)
897 fprintf(logfile, "Tried to call a TRAP\n");
898 abort();
899 default:
900 /* Should not happen ! */
901 fprintf(stderr, "Unknown program exception (%02x)\n",
902 env->error_code);
903 if (loglevel) {
904 fprintf(logfile, "Unknwon program exception (%02x)\n",
905 env->error_code);
906 }
907 abort();
908 }
909 info._sifields._sigfault._addr = env->nip - 4;
910 queue_signal(info.si_signo, &info);
911 break;
912 case EXCP_NO_FP:
913 fprintf(stderr, "No floating point allowed\n");
914 if (loglevel)
915 fprintf(logfile, "No floating point allowed\n");
916 info.si_signo = TARGET_SIGILL;
917 info.si_errno = 0;
918 info.si_code = TARGET_ILL_COPROC;
919 info._sifields._sigfault._addr = env->nip - 4;
920 queue_signal(info.si_signo, &info);
921 break;
922 case EXCP_DECR:
923 /* Should not happen ! */
924 fprintf(stderr, "Decrementer exception\n");
925 if (loglevel)
926 fprintf(logfile, "Decrementer exception\n");
927 abort();
928 case EXCP_TRACE:
929 /* Do nothing: we use this to trace execution */
930 break;
931 case EXCP_FP_ASSIST:
932 /* Should not happen ! */
933 fprintf(stderr, "Floating point assist exception\n");
934 if (loglevel)
935 fprintf(logfile, "Floating point assist exception\n");
936 abort();
937 case EXCP_MTMSR:
938 /* We reloaded the msr, just go on */
939 if (msr_pr == 0) {
940 fprintf(stderr, "Tried to go into supervisor mode !\n");
941 if (loglevel)
942 fprintf(logfile, "Tried to go into supervisor mode !\n");
943 abort();
944 }
945 break;
946 case EXCP_BRANCH:
947 /* We stopped because of a jump... */
948 break;
949 case EXCP_INTERRUPT:
950 /* Don't know why this should ever happen... */
951 break;
952 case EXCP_DEBUG:
953 {
954 int sig;
955
956 sig = gdb_handlesig (env, TARGET_SIGTRAP);
957 if (sig)
958 {
959 info.si_signo = sig;
960 info.si_errno = 0;
961 info.si_code = TARGET_TRAP_BRKPT;
962 queue_signal(info.si_signo, &info);
963 }
964 }
965 break;
966 default:
967 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
968 trapnr);
969 if (loglevel) {
970 fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
971 "0x%02x - aborting\n", trapnr, env->error_code);
972 }
973 abort();
974 }
975 process_pending_signals(env);
976 }
977 }
978 #endif
979
980 #ifdef TARGET_MIPS
981
982 #define MIPS_SYS(name, args) args,
983
984 static const uint8_t mips_syscall_args[] = {
985 MIPS_SYS(sys_syscall , 0) /* 4000 */
986 MIPS_SYS(sys_exit , 1)
987 MIPS_SYS(sys_fork , 0)
988 MIPS_SYS(sys_read , 3)
989 MIPS_SYS(sys_write , 3)
990 MIPS_SYS(sys_open , 3) /* 4005 */
991 MIPS_SYS(sys_close , 1)
992 MIPS_SYS(sys_waitpid , 3)
993 MIPS_SYS(sys_creat , 2)
994 MIPS_SYS(sys_link , 2)
995 MIPS_SYS(sys_unlink , 1) /* 4010 */
996 MIPS_SYS(sys_execve , 0)
997 MIPS_SYS(sys_chdir , 1)
998 MIPS_SYS(sys_time , 1)
999 MIPS_SYS(sys_mknod , 3)
1000 MIPS_SYS(sys_chmod , 2) /* 4015 */
1001 MIPS_SYS(sys_lchown , 3)
1002 MIPS_SYS(sys_ni_syscall , 0)
1003 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1004 MIPS_SYS(sys_lseek , 3)
1005 MIPS_SYS(sys_getpid , 0) /* 4020 */
1006 MIPS_SYS(sys_mount , 5)
1007 MIPS_SYS(sys_oldumount , 1)
1008 MIPS_SYS(sys_setuid , 1)
1009 MIPS_SYS(sys_getuid , 0)
1010 MIPS_SYS(sys_stime , 1) /* 4025 */
1011 MIPS_SYS(sys_ptrace , 4)
1012 MIPS_SYS(sys_alarm , 1)
1013 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1014 MIPS_SYS(sys_pause , 0)
1015 MIPS_SYS(sys_utime , 2) /* 4030 */
1016 MIPS_SYS(sys_ni_syscall , 0)
1017 MIPS_SYS(sys_ni_syscall , 0)
1018 MIPS_SYS(sys_access , 2)
1019 MIPS_SYS(sys_nice , 1)
1020 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1021 MIPS_SYS(sys_sync , 0)
1022 MIPS_SYS(sys_kill , 2)
1023 MIPS_SYS(sys_rename , 2)
1024 MIPS_SYS(sys_mkdir , 2)
1025 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1026 MIPS_SYS(sys_dup , 1)
1027 MIPS_SYS(sys_pipe , 0)
1028 MIPS_SYS(sys_times , 1)
1029 MIPS_SYS(sys_ni_syscall , 0)
1030 MIPS_SYS(sys_brk , 1) /* 4045 */
1031 MIPS_SYS(sys_setgid , 1)
1032 MIPS_SYS(sys_getgid , 0)
1033 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1034 MIPS_SYS(sys_geteuid , 0)
1035 MIPS_SYS(sys_getegid , 0) /* 4050 */
1036 MIPS_SYS(sys_acct , 0)
1037 MIPS_SYS(sys_umount , 2)
1038 MIPS_SYS(sys_ni_syscall , 0)
1039 MIPS_SYS(sys_ioctl , 3)
1040 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1041 MIPS_SYS(sys_ni_syscall , 2)
1042 MIPS_SYS(sys_setpgid , 2)
1043 MIPS_SYS(sys_ni_syscall , 0)
1044 MIPS_SYS(sys_olduname , 1)
1045 MIPS_SYS(sys_umask , 1) /* 4060 */
1046 MIPS_SYS(sys_chroot , 1)
1047 MIPS_SYS(sys_ustat , 2)
1048 MIPS_SYS(sys_dup2 , 2)
1049 MIPS_SYS(sys_getppid , 0)
1050 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1051 MIPS_SYS(sys_setsid , 0)
1052 MIPS_SYS(sys_sigaction , 3)
1053 MIPS_SYS(sys_sgetmask , 0)
1054 MIPS_SYS(sys_ssetmask , 1)
1055 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1056 MIPS_SYS(sys_setregid , 2)
1057 MIPS_SYS(sys_sigsuspend , 0)
1058 MIPS_SYS(sys_sigpending , 1)
1059 MIPS_SYS(sys_sethostname , 2)
1060 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1061 MIPS_SYS(sys_getrlimit , 2)
1062 MIPS_SYS(sys_getrusage , 2)
1063 MIPS_SYS(sys_gettimeofday, 2)
1064 MIPS_SYS(sys_settimeofday, 2)
1065 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1066 MIPS_SYS(sys_setgroups , 2)
1067 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1068 MIPS_SYS(sys_symlink , 2)
1069 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1070 MIPS_SYS(sys_readlink , 3) /* 4085 */
1071 MIPS_SYS(sys_uselib , 1)
1072 MIPS_SYS(sys_swapon , 2)
1073 MIPS_SYS(sys_reboot , 3)
1074 MIPS_SYS(old_readdir , 3)
1075 MIPS_SYS(old_mmap , 6) /* 4090 */
1076 MIPS_SYS(sys_munmap , 2)
1077 MIPS_SYS(sys_truncate , 2)
1078 MIPS_SYS(sys_ftruncate , 2)
1079 MIPS_SYS(sys_fchmod , 2)
1080 MIPS_SYS(sys_fchown , 3) /* 4095 */
1081 MIPS_SYS(sys_getpriority , 2)
1082 MIPS_SYS(sys_setpriority , 3)
1083 MIPS_SYS(sys_ni_syscall , 0)
1084 MIPS_SYS(sys_statfs , 2)
1085 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1086 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1087 MIPS_SYS(sys_socketcall , 2)
1088 MIPS_SYS(sys_syslog , 3)
1089 MIPS_SYS(sys_setitimer , 3)
1090 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1091 MIPS_SYS(sys_newstat , 2)
1092 MIPS_SYS(sys_newlstat , 2)
1093 MIPS_SYS(sys_newfstat , 2)
1094 MIPS_SYS(sys_uname , 1)
1095 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1096 MIPS_SYS(sys_vhangup , 0)
1097 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1098 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1099 MIPS_SYS(sys_wait4 , 4)
1100 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1101 MIPS_SYS(sys_sysinfo , 1)
1102 MIPS_SYS(sys_ipc , 6)
1103 MIPS_SYS(sys_fsync , 1)
1104 MIPS_SYS(sys_sigreturn , 0)
1105 MIPS_SYS(sys_clone , 0) /* 4120 */
1106 MIPS_SYS(sys_setdomainname, 2)
1107 MIPS_SYS(sys_newuname , 1)
1108 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1109 MIPS_SYS(sys_adjtimex , 1)
1110 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1111 MIPS_SYS(sys_sigprocmask , 3)
1112 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1113 MIPS_SYS(sys_init_module , 5)
1114 MIPS_SYS(sys_delete_module, 1)
1115 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1116 MIPS_SYS(sys_quotactl , 0)
1117 MIPS_SYS(sys_getpgid , 1)
1118 MIPS_SYS(sys_fchdir , 1)
1119 MIPS_SYS(sys_bdflush , 2)
1120 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1121 MIPS_SYS(sys_personality , 1)
1122 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1123 MIPS_SYS(sys_setfsuid , 1)
1124 MIPS_SYS(sys_setfsgid , 1)
1125 MIPS_SYS(sys_llseek , 5) /* 4140 */
1126 MIPS_SYS(sys_getdents , 3)
1127 MIPS_SYS(sys_select , 5)
1128 MIPS_SYS(sys_flock , 2)
1129 MIPS_SYS(sys_msync , 3)
1130 MIPS_SYS(sys_readv , 3) /* 4145 */
1131 MIPS_SYS(sys_writev , 3)
1132 MIPS_SYS(sys_cacheflush , 3)
1133 MIPS_SYS(sys_cachectl , 3)
1134 MIPS_SYS(sys_sysmips , 4)
1135 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1136 MIPS_SYS(sys_getsid , 1)
1137 MIPS_SYS(sys_fdatasync , 0)
1138 MIPS_SYS(sys_sysctl , 1)
1139 MIPS_SYS(sys_mlock , 2)
1140 MIPS_SYS(sys_munlock , 2) /* 4155 */
1141 MIPS_SYS(sys_mlockall , 1)
1142 MIPS_SYS(sys_munlockall , 0)
1143 MIPS_SYS(sys_sched_setparam, 2)
1144 MIPS_SYS(sys_sched_getparam, 2)
1145 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1146 MIPS_SYS(sys_sched_getscheduler, 1)
1147 MIPS_SYS(sys_sched_yield , 0)
1148 MIPS_SYS(sys_sched_get_priority_max, 1)
1149 MIPS_SYS(sys_sched_get_priority_min, 1)
1150 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1151 MIPS_SYS(sys_nanosleep, 2)
1152 MIPS_SYS(sys_mremap , 4)
1153 MIPS_SYS(sys_accept , 3)
1154 MIPS_SYS(sys_bind , 3)
1155 MIPS_SYS(sys_connect , 3) /* 4170 */
1156 MIPS_SYS(sys_getpeername , 3)
1157 MIPS_SYS(sys_getsockname , 3)
1158 MIPS_SYS(sys_getsockopt , 5)
1159 MIPS_SYS(sys_listen , 2)
1160 MIPS_SYS(sys_recv , 4) /* 4175 */
1161 MIPS_SYS(sys_recvfrom , 6)
1162 MIPS_SYS(sys_recvmsg , 3)
1163 MIPS_SYS(sys_send , 4)
1164 MIPS_SYS(sys_sendmsg , 3)
1165 MIPS_SYS(sys_sendto , 6) /* 4180 */
1166 MIPS_SYS(sys_setsockopt , 5)
1167 MIPS_SYS(sys_shutdown , 2)
1168 MIPS_SYS(sys_socket , 3)
1169 MIPS_SYS(sys_socketpair , 4)
1170 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1171 MIPS_SYS(sys_getresuid , 3)
1172 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1173 MIPS_SYS(sys_poll , 3)
1174 MIPS_SYS(sys_nfsservctl , 3)
1175 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1176 MIPS_SYS(sys_getresgid , 3)
1177 MIPS_SYS(sys_prctl , 5)
1178 MIPS_SYS(sys_rt_sigreturn, 0)
1179 MIPS_SYS(sys_rt_sigaction, 4)
1180 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1181 MIPS_SYS(sys_rt_sigpending, 2)
1182 MIPS_SYS(sys_rt_sigtimedwait, 4)
1183 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1184 MIPS_SYS(sys_rt_sigsuspend, 0)
1185 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1186 MIPS_SYS(sys_pwrite64 , 6)
1187 MIPS_SYS(sys_chown , 3)
1188 MIPS_SYS(sys_getcwd , 2)
1189 MIPS_SYS(sys_capget , 2)
1190 MIPS_SYS(sys_capset , 2) /* 4205 */
1191 MIPS_SYS(sys_sigaltstack , 0)
1192 MIPS_SYS(sys_sendfile , 4)
1193 MIPS_SYS(sys_ni_syscall , 0)
1194 MIPS_SYS(sys_ni_syscall , 0)
1195 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1196 MIPS_SYS(sys_truncate64 , 4)
1197 MIPS_SYS(sys_ftruncate64 , 4)
1198 MIPS_SYS(sys_stat64 , 2)
1199 MIPS_SYS(sys_lstat64 , 2)
1200 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1201 MIPS_SYS(sys_pivot_root , 2)
1202 MIPS_SYS(sys_mincore , 3)
1203 MIPS_SYS(sys_madvise , 3)
1204 MIPS_SYS(sys_getdents64 , 3)
1205 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1206 MIPS_SYS(sys_ni_syscall , 0)
1207 MIPS_SYS(sys_gettid , 0)
1208 MIPS_SYS(sys_readahead , 5)
1209 MIPS_SYS(sys_setxattr , 5)
1210 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1211 MIPS_SYS(sys_fsetxattr , 5)
1212 MIPS_SYS(sys_getxattr , 4)
1213 MIPS_SYS(sys_lgetxattr , 4)
1214 MIPS_SYS(sys_fgetxattr , 4)
1215 MIPS_SYS(sys_listxattr , 3) /* 4230 */
1216 MIPS_SYS(sys_llistxattr , 3)
1217 MIPS_SYS(sys_flistxattr , 3)
1218 MIPS_SYS(sys_removexattr , 2)
1219 MIPS_SYS(sys_lremovexattr, 2)
1220 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1221 MIPS_SYS(sys_tkill , 2)
1222 MIPS_SYS(sys_sendfile64 , 5)
1223 MIPS_SYS(sys_futex , 2)
1224 MIPS_SYS(sys_sched_setaffinity, 3)
1225 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1226 MIPS_SYS(sys_io_setup , 2)
1227 MIPS_SYS(sys_io_destroy , 1)
1228 MIPS_SYS(sys_io_getevents, 5)
1229 MIPS_SYS(sys_io_submit , 3)
1230 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1231 MIPS_SYS(sys_exit_group , 1)
1232 MIPS_SYS(sys_lookup_dcookie, 3)
1233 MIPS_SYS(sys_epoll_create, 1)
1234 MIPS_SYS(sys_epoll_ctl , 4)
1235 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1236 MIPS_SYS(sys_remap_file_pages, 5)
1237 MIPS_SYS(sys_set_tid_address, 1)
1238 MIPS_SYS(sys_restart_syscall, 0)
1239 MIPS_SYS(sys_fadvise64_64, 7)
1240 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1241 MIPS_SYS(sys_fstatfs64 , 2)
1242 MIPS_SYS(sys_timer_create, 3)
1243 MIPS_SYS(sys_timer_settime, 4)
1244 MIPS_SYS(sys_timer_gettime, 2)
1245 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1246 MIPS_SYS(sys_timer_delete, 1)
1247 MIPS_SYS(sys_clock_settime, 2)
1248 MIPS_SYS(sys_clock_gettime, 2)
1249 MIPS_SYS(sys_clock_getres, 2)
1250 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1251 MIPS_SYS(sys_tgkill , 3)
1252 MIPS_SYS(sys_utimes , 2)
1253 MIPS_SYS(sys_mbind , 4)
1254 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1255 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1256 MIPS_SYS(sys_mq_open , 4)
1257 MIPS_SYS(sys_mq_unlink , 1)
1258 MIPS_SYS(sys_mq_timedsend, 5)
1259 MIPS_SYS(sys_mq_timedreceive, 5)
1260 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1261 MIPS_SYS(sys_mq_getsetattr, 3)
1262 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1263 MIPS_SYS(sys_waitid , 4)
1264 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1265 MIPS_SYS(sys_add_key , 5)
1266 MIPS_SYS(sys_request_key , 4)
1267 MIPS_SYS(sys_keyctl , 5)
1268 };
1269
1270 #undef MIPS_SYS
1271
1272 void cpu_loop(CPUMIPSState *env)
1273 {
1274 target_siginfo_t info;
1275 int trapnr, ret, nb_args;
1276 unsigned int syscall_num;
1277 target_ulong arg5, arg6, sp_reg;
1278
1279 for(;;) {
1280 trapnr = cpu_mips_exec(env);
1281 switch(trapnr) {
1282 case EXCP_SYSCALL:
1283 {
1284 syscall_num = env->gpr[2] - 4000;
1285 if (syscall_num >= sizeof(mips_syscall_args)) {
1286 ret = -ENOSYS;
1287 } else {
1288 nb_args = mips_syscall_args[syscall_num];
1289 if (nb_args >= 5) {
1290 sp_reg = env->gpr[29];
1291 /* these arguments are taken from the stack */
1292 if (get_user(arg5, (target_ulong *)(sp_reg + 16))) {
1293 ret = -EFAULT;
1294 goto fail;
1295 }
1296 if (nb_args >= 6) {
1297 if (get_user(arg6, (target_ulong *)(sp_reg + 20))) {
1298 ret = -EFAULT;
1299 goto fail;
1300 }
1301 } else {
1302 arg6 = 0;
1303 }
1304 } else {
1305 arg5 = 0;
1306 arg6 = 0;
1307 }
1308 ret = do_syscall(env,
1309 env->gpr[2],
1310 env->gpr[4],
1311 env->gpr[5],
1312 env->gpr[6],
1313 env->gpr[7],
1314 arg5,
1315 arg6);
1316 }
1317 fail:
1318 env->PC += 4;
1319 if ((unsigned int)ret >= (unsigned int)(-1133)) {
1320 env->gpr[7] = 1; /* error flag */
1321 ret = -ret;
1322 env->gpr[0] = ret;
1323 env->gpr[2] = ret;
1324 } else {
1325 env->gpr[7] = 0; /* error flag */
1326 env->gpr[2] = ret;
1327 }
1328 }
1329 break;
1330 case EXCP_RI:
1331 {
1332 uint32_t insn, op;
1333
1334 if (get_user(insn, (uint32_t *)env->PC) < 0)
1335 goto sigill;
1336 op = insn >> 26;
1337 // printf("insn=%08x op=%02x\n", insn, op);
1338 /* XXX: totally dummy FP ops just to be able to launch
1339 a few executables */
1340 switch(op) {
1341 case 0x31: /* LWC1 */
1342 env->PC += 4;
1343 break;
1344 case 0x39: /* SWC1 */
1345 env->PC += 4;
1346 break;
1347 case 0x11:
1348 switch((insn >> 21) & 0x1f) {
1349 case 0x02: /* CFC1 */
1350 env->PC += 4;
1351 break;
1352 default:
1353 goto sigill;
1354 }
1355 break;
1356 default:
1357 sigill:
1358 info.si_signo = TARGET_SIGILL;
1359 info.si_errno = 0;
1360 info.si_code = 0;
1361 queue_signal(info.si_signo, &info);
1362 break;
1363 }
1364 }
1365 break;
1366 default:
1367 // error:
1368 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1369 trapnr);
1370 cpu_dump_state(env, stderr, fprintf, 0);
1371 abort();
1372 }
1373 process_pending_signals(env);
1374 }
1375 }
1376 #endif
1377
1378 void usage(void)
1379 {
1380 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2005 Fabrice Bellard\n"
1381 "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] program [arguments...]\n"
1382 "Linux CPU emulator (compiled for %s emulation)\n"
1383 "\n"
1384 "-h print this help\n"
1385 "-g port wait gdb connection to port\n"
1386 "-L path set the elf interpreter prefix (default=%s)\n"
1387 "-s size set the stack size in bytes (default=%ld)\n"
1388 "\n"
1389 "debug options:\n"
1390 #ifdef USE_CODE_COPY
1391 "-no-code-copy disable code copy acceleration\n"
1392 #endif
1393 "-d options activate log (logfile=%s)\n"
1394 "-p pagesize set the host page size to 'pagesize'\n",
1395 TARGET_ARCH,
1396 interp_prefix,
1397 x86_stack_size,
1398 DEBUG_LOGFILE);
1399 _exit(1);
1400 }
1401
1402 /* XXX: currently only used for async signals (see signal.c) */
1403 CPUState *global_env;
1404
1405 /* used to free thread contexts */
1406 TaskState *first_task_state;
1407
1408 int main(int argc, char **argv)
1409 {
1410 const char *filename;
1411 struct target_pt_regs regs1, *regs = &regs1;
1412 struct image_info info1, *info = &info1;
1413 TaskState ts1, *ts = &ts1;
1414 CPUState *env;
1415 int optind;
1416 const char *r;
1417 int gdbstub_port = 0;
1418
1419 if (argc <= 1)
1420 usage();
1421
1422 /* init debug */
1423 cpu_set_log_filename(DEBUG_LOGFILE);
1424
1425 optind = 1;
1426 for(;;) {
1427 if (optind >= argc)
1428 break;
1429 r = argv[optind];
1430 if (r[0] != '-')
1431 break;
1432 optind++;
1433 r++;
1434 if (!strcmp(r, "-")) {
1435 break;
1436 } else if (!strcmp(r, "d")) {
1437 int mask;
1438 CPULogItem *item;
1439
1440 if (optind >= argc)
1441 break;
1442
1443 r = argv[optind++];
1444 mask = cpu_str_to_log_mask(r);
1445 if (!mask) {
1446 printf("Log items (comma separated):\n");
1447 for(item = cpu_log_items; item->mask != 0; item++) {
1448 printf("%-10s %s\n", item->name, item->help);
1449 }
1450 exit(1);
1451 }
1452 cpu_set_log(mask);
1453 } else if (!strcmp(r, "s")) {
1454 r = argv[optind++];
1455 x86_stack_size = strtol(r, (char **)&r, 0);
1456 if (x86_stack_size <= 0)
1457 usage();
1458 if (*r == 'M')
1459 x86_stack_size *= 1024 * 1024;
1460 else if (*r == 'k' || *r == 'K')
1461 x86_stack_size *= 1024;
1462 } else if (!strcmp(r, "L")) {
1463 interp_prefix = argv[optind++];
1464 } else if (!strcmp(r, "p")) {
1465 qemu_host_page_size = atoi(argv[optind++]);
1466 if (qemu_host_page_size == 0 ||
1467 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
1468 fprintf(stderr, "page size must be a power of two\n");
1469 exit(1);
1470 }
1471 } else if (!strcmp(r, "g")) {
1472 gdbstub_port = atoi(argv[optind++]);
1473 } else
1474 #ifdef USE_CODE_COPY
1475 if (!strcmp(r, "no-code-copy")) {
1476 code_copy_enabled = 0;
1477 } else
1478 #endif
1479 {
1480 usage();
1481 }
1482 }
1483 if (optind >= argc)
1484 usage();
1485 filename = argv[optind];
1486
1487 /* Zero out regs */
1488 memset(regs, 0, sizeof(struct target_pt_regs));
1489
1490 /* Zero out image_info */
1491 memset(info, 0, sizeof(struct image_info));
1492
1493 /* Scan interp_prefix dir for replacement files. */
1494 init_paths(interp_prefix);
1495
1496 /* NOTE: we need to init the CPU at this stage to get
1497 qemu_host_page_size */
1498 env = cpu_init();
1499 global_env = env;
1500
1501 if (elf_exec(filename, argv+optind, environ, regs, info) != 0) {
1502 printf("Error loading %s\n", filename);
1503 _exit(1);
1504 }
1505
1506 if (loglevel) {
1507 page_dump(logfile);
1508
1509 fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk);
1510 fprintf(logfile, "end_code 0x%08lx\n" , info->end_code);
1511 fprintf(logfile, "start_code 0x%08lx\n" , info->start_code);
1512 fprintf(logfile, "end_data 0x%08lx\n" , info->end_data);
1513 fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack);
1514 fprintf(logfile, "brk 0x%08lx\n" , info->brk);
1515 fprintf(logfile, "entry 0x%08lx\n" , info->entry);
1516 }
1517
1518 target_set_brk((char *)info->brk);
1519 syscall_init();
1520 signal_init();
1521
1522 /* build Task State */
1523 memset(ts, 0, sizeof(TaskState));
1524 env->opaque = ts;
1525 ts->used = 1;
1526 env->user_mode_only = 1;
1527
1528 #if defined(TARGET_I386)
1529 cpu_x86_set_cpl(env, 3);
1530
1531 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
1532 env->hflags |= HF_PE_MASK;
1533 if (env->cpuid_features & CPUID_SSE) {
1534 env->cr[4] |= CR4_OSFXSR_MASK;
1535 env->hflags |= HF_OSFXSR_MASK;
1536 }
1537
1538 /* flags setup : we activate the IRQs by default as in user mode */
1539 env->eflags |= IF_MASK;
1540
1541 /* linux register setup */
1542 env->regs[R_EAX] = regs->eax;
1543 env->regs[R_EBX] = regs->ebx;
1544 env->regs[R_ECX] = regs->ecx;
1545 env->regs[R_EDX] = regs->edx;
1546 env->regs[R_ESI] = regs->esi;
1547 env->regs[R_EDI] = regs->edi;
1548 env->regs[R_EBP] = regs->ebp;
1549 env->regs[R_ESP] = regs->esp;
1550 env->eip = regs->eip;
1551
1552 /* linux interrupt setup */
1553 env->idt.base = (long)idt_table;
1554 env->idt.limit = sizeof(idt_table) - 1;
1555 set_idt(0, 0);
1556 set_idt(1, 0);
1557 set_idt(2, 0);
1558 set_idt(3, 3);
1559 set_idt(4, 3);
1560 set_idt(5, 3);
1561 set_idt(6, 0);
1562 set_idt(7, 0);
1563 set_idt(8, 0);
1564 set_idt(9, 0);
1565 set_idt(10, 0);
1566 set_idt(11, 0);
1567 set_idt(12, 0);
1568 set_idt(13, 0);
1569 set_idt(14, 0);
1570 set_idt(15, 0);
1571 set_idt(16, 0);
1572 set_idt(17, 0);
1573 set_idt(18, 0);
1574 set_idt(19, 0);
1575 set_idt(0x80, 3);
1576
1577 /* linux segment setup */
1578 env->gdt.base = (long)gdt_table;
1579 env->gdt.limit = sizeof(gdt_table) - 1;
1580 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
1581 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1582 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
1583 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
1584 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1585 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
1586 cpu_x86_load_seg(env, R_CS, __USER_CS);
1587 cpu_x86_load_seg(env, R_DS, __USER_DS);
1588 cpu_x86_load_seg(env, R_ES, __USER_DS);
1589 cpu_x86_load_seg(env, R_SS, __USER_DS);
1590 cpu_x86_load_seg(env, R_FS, __USER_DS);
1591 cpu_x86_load_seg(env, R_GS, __USER_DS);
1592
1593 #elif defined(TARGET_ARM)
1594 {
1595 int i;
1596 cpsr_write(env, regs->uregs[16], 0xffffffff);
1597 for(i = 0; i < 16; i++) {
1598 env->regs[i] = regs->uregs[i];
1599 }
1600 ts->stack_base = info->start_stack;
1601 ts->heap_base = info->brk;
1602 /* This will be filled in on the first SYS_HEAPINFO call. */
1603 ts->heap_limit = 0;
1604 }
1605 #elif defined(TARGET_SPARC)
1606 {
1607 int i;
1608 env->pc = regs->pc;
1609 env->npc = regs->npc;
1610 env->y = regs->y;
1611 for(i = 0; i < 8; i++)
1612 env->gregs[i] = regs->u_regs[i];
1613 for(i = 0; i < 8; i++)
1614 env->regwptr[i] = regs->u_regs[i + 8];
1615 }
1616 #elif defined(TARGET_PPC)
1617 {
1618 ppc_def_t *def;
1619 int i;
1620
1621 /* Choose and initialise CPU */
1622 /* XXX: CPU model (or PVR) should be provided on command line */
1623 // ppc_find_by_name("750gx", &def);
1624 // ppc_find_by_name("750fx", &def);
1625 // ppc_find_by_name("750p", &def);
1626 ppc_find_by_name("750", &def);
1627 // ppc_find_by_name("G3", &def);
1628 // ppc_find_by_name("604r", &def);
1629 // ppc_find_by_name("604e", &def);
1630 // ppc_find_by_name("604", &def);
1631 if (def == NULL) {
1632 cpu_abort(env,
1633 "Unable to find PowerPC CPU definition\n");
1634 }
1635 cpu_ppc_register(env, def);
1636
1637 for (i = 0; i < 32; i++) {
1638 if (i != 12 && i != 6 && i != 13)
1639 env->msr[i] = (regs->msr >> i) & 1;
1640 }
1641 env->nip = regs->nip;
1642 for(i = 0; i < 32; i++) {
1643 env->gpr[i] = regs->gpr[i];
1644 }
1645 }
1646 #elif defined(TARGET_MIPS)
1647 {
1648 int i;
1649
1650 for(i = 0; i < 32; i++) {
1651 env->gpr[i] = regs->regs[i];
1652 }
1653 env->PC = regs->cp0_epc;
1654 }
1655 #else
1656 #error unsupported target CPU
1657 #endif
1658
1659 if (gdbstub_port) {
1660 gdbserver_start (gdbstub_port);
1661 gdb_handlesig(env, 0);
1662 }
1663 cpu_loop(env);
1664 /* never exits */
1665 return 0;
1666 }
Qemu copy for testing