?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Change -drive parsing so that paths don't have to be double-escaped (Laurent Vivier...
[qemu/qemu_0_9_1_stable.git] / linux-user / main.c
blob164fdb9edb0c9f3b71c5cefbca6dba846a101397
1 /*
2 * qemu user main
3 *
4 * Copyright (c) 2003-2008 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 static const char *interp_prefix = CONFIG_QEMU_PREFIX;
32 const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
33
34 #if defined(__i386__) && !defined(CONFIG_STATIC)
35 /* Force usage of an ELF interpreter even if it is an ELF shared
36 object ! */
37 const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
38 #endif
39
40 /* for recent libc, we add these dummy symbols which are not declared
41 when generating a linked object (bug in ld ?) */
42 #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC)
43 asm(".globl __preinit_array_start\n"
44 ".globl __preinit_array_end\n"
45 ".globl __init_array_start\n"
46 ".globl __init_array_end\n"
47 ".globl __fini_array_start\n"
48 ".globl __fini_array_end\n"
49 ".section \".rodata\"\n"
50 "__preinit_array_start:\n"
51 "__preinit_array_end:\n"
52 "__init_array_start:\n"
53 "__init_array_end:\n"
54 "__fini_array_start:\n"
55 "__fini_array_end:\n"
56 ".long 0\n"
57 ".previous\n");
58 #endif
59
60 /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
61 we allocate a bigger stack. Need a better solution, for example
62 by remapping the process stack directly at the right place */
63 unsigned long x86_stack_size = 512 * 1024;
64
65 void gemu_log(const char *fmt, ...)
66 {
67 va_list ap;
68
69 va_start(ap, fmt);
70 vfprintf(stderr, fmt, ap);
71 va_end(ap);
72 }
73
74 void cpu_outb(CPUState *env, int addr, int val)
75 {
76 fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
77 }
78
79 void cpu_outw(CPUState *env, int addr, int val)
80 {
81 fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
82 }
83
84 void cpu_outl(CPUState *env, int addr, int val)
85 {
86 fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
87 }
88
89 int cpu_inb(CPUState *env, int addr)
90 {
91 fprintf(stderr, "inb: port=0x%04x\n", addr);
92 return 0;
93 }
94
95 int cpu_inw(CPUState *env, int addr)
96 {
97 fprintf(stderr, "inw: port=0x%04x\n", addr);
98 return 0;
99 }
100
101 int cpu_inl(CPUState *env, int addr)
102 {
103 fprintf(stderr, "inl: port=0x%04x\n", addr);
104 return 0;
105 }
106
107 int cpu_get_pic_interrupt(CPUState *env)
108 {
109 return -1;
110 }
111
112 /* timers for rdtsc */
113
114 #if 0
115
116 static uint64_t emu_time;
117
118 int64_t cpu_get_real_ticks(void)
119 {
120 return emu_time++;
121 }
122
123 #endif
124
125 #ifdef TARGET_I386
126 /***********************************************************/
127 /* CPUX86 core interface */
128
129 void cpu_smm_update(CPUState *env)
130 {
131 }
132
133 uint64_t cpu_get_tsc(CPUX86State *env)
134 {
135 return cpu_get_real_ticks();
136 }
137
138 static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
139 int flags)
140 {
141 unsigned int e1, e2;
142 uint32_t *p;
143 e1 = (addr << 16) | (limit & 0xffff);
144 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
145 e2 |= flags;
146 p = ptr;
147 p[0] = tswapl(e1);
148 p[1] = tswapl(e2);
149 }
150
151 #if TARGET_X86_64
152 uint64_t idt_table[512];
153
154 static void set_gate64(void *ptr, unsigned int type, unsigned int dpl,
155 uint64_t addr, unsigned int sel)
156 {
157 uint32_t *p, e1, e2;
158 e1 = (addr & 0xffff) | (sel << 16);
159 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
160 p = ptr;
161 p[0] = tswap32(e1);
162 p[1] = tswap32(e2);
163 p[2] = tswap32(addr >> 32);
164 p[3] = 0;
165 }
166 /* only dpl matters as we do only user space emulation */
167 static void set_idt(int n, unsigned int dpl)
168 {
169 set_gate64(idt_table + n * 2, 0, dpl, 0, 0);
170 }
171 #else
172 uint64_t idt_table[256];
173
174 static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
175 uint32_t addr, unsigned int sel)
176 {
177 uint32_t *p, e1, e2;
178 e1 = (addr & 0xffff) | (sel << 16);
179 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
180 p = ptr;
181 p[0] = tswap32(e1);
182 p[1] = tswap32(e2);
183 }
184
185 /* only dpl matters as we do only user space emulation */
186 static void set_idt(int n, unsigned int dpl)
187 {
188 set_gate(idt_table + n, 0, dpl, 0, 0);
189 }
190 #endif
191
192 void cpu_loop(CPUX86State *env)
193 {
194 int trapnr;
195 abi_ulong pc;
196 target_siginfo_t info;
197
198 for(;;) {
199 trapnr = cpu_x86_exec(env);
200 switch(trapnr) {
201 case 0x80:
202 /* linux syscall from int $0x80 */
203 env->regs[R_EAX] = do_syscall(env,
204 env->regs[R_EAX],
205 env->regs[R_EBX],
206 env->regs[R_ECX],
207 env->regs[R_EDX],
208 env->regs[R_ESI],
209 env->regs[R_EDI],
210 env->regs[R_EBP]);
211 break;
212 #ifndef TARGET_ABI32
213 case EXCP_SYSCALL:
214 /* linux syscall from syscall intruction */
215 env->regs[R_EAX] = do_syscall(env,
216 env->regs[R_EAX],
217 env->regs[R_EDI],
218 env->regs[R_ESI],
219 env->regs[R_EDX],
220 env->regs[10],
221 env->regs[8],
222 env->regs[9]);
223 env->eip = env->exception_next_eip;
224 break;
225 #endif
226 case EXCP0B_NOSEG:
227 case EXCP0C_STACK:
228 info.si_signo = SIGBUS;
229 info.si_errno = 0;
230 info.si_code = TARGET_SI_KERNEL;
231 info._sifields._sigfault._addr = 0;
232 queue_signal(info.si_signo, &info);
233 break;
234 case EXCP0D_GPF:
235 /* XXX: potential problem if ABI32 */
236 #ifndef TARGET_X86_64
237 if (env->eflags & VM_MASK) {
238 handle_vm86_fault(env);
239 } else
240 #endif
241 {
242 info.si_signo = SIGSEGV;
243 info.si_errno = 0;
244 info.si_code = TARGET_SI_KERNEL;
245 info._sifields._sigfault._addr = 0;
246 queue_signal(info.si_signo, &info);
247 }
248 break;
249 case EXCP0E_PAGE:
250 info.si_signo = SIGSEGV;
251 info.si_errno = 0;
252 if (!(env->error_code & 1))
253 info.si_code = TARGET_SEGV_MAPERR;
254 else
255 info.si_code = TARGET_SEGV_ACCERR;
256 info._sifields._sigfault._addr = env->cr[2];
257 queue_signal(info.si_signo, &info);
258 break;
259 case EXCP00_DIVZ:
260 #ifndef TARGET_X86_64
261 if (env->eflags & VM_MASK) {
262 handle_vm86_trap(env, trapnr);
263 } else
264 #endif
265 {
266 /* division by zero */
267 info.si_signo = SIGFPE;
268 info.si_errno = 0;
269 info.si_code = TARGET_FPE_INTDIV;
270 info._sifields._sigfault._addr = env->eip;
271 queue_signal(info.si_signo, &info);
272 }
273 break;
274 case EXCP01_SSTP:
275 case EXCP03_INT3:
276 #ifndef TARGET_X86_64
277 if (env->eflags & VM_MASK) {
278 handle_vm86_trap(env, trapnr);
279 } else
280 #endif
281 {
282 info.si_signo = SIGTRAP;
283 info.si_errno = 0;
284 if (trapnr == EXCP01_SSTP) {
285 info.si_code = TARGET_TRAP_BRKPT;
286 info._sifields._sigfault._addr = env->eip;
287 } else {
288 info.si_code = TARGET_SI_KERNEL;
289 info._sifields._sigfault._addr = 0;
290 }
291 queue_signal(info.si_signo, &info);
292 }
293 break;
294 case EXCP04_INTO:
295 case EXCP05_BOUND:
296 #ifndef TARGET_X86_64
297 if (env->eflags & VM_MASK) {
298 handle_vm86_trap(env, trapnr);
299 } else
300 #endif
301 {
302 info.si_signo = SIGSEGV;
303 info.si_errno = 0;
304 info.si_code = TARGET_SI_KERNEL;
305 info._sifields._sigfault._addr = 0;
306 queue_signal(info.si_signo, &info);
307 }
308 break;
309 case EXCP06_ILLOP:
310 info.si_signo = SIGILL;
311 info.si_errno = 0;
312 info.si_code = TARGET_ILL_ILLOPN;
313 info._sifields._sigfault._addr = env->eip;
314 queue_signal(info.si_signo, &info);
315 break;
316 case EXCP_INTERRUPT:
317 /* just indicate that signals should be handled asap */
318 break;
319 case EXCP_DEBUG:
320 {
321 int sig;
322
323 sig = gdb_handlesig (env, TARGET_SIGTRAP);
324 if (sig)
325 {
326 info.si_signo = sig;
327 info.si_errno = 0;
328 info.si_code = TARGET_TRAP_BRKPT;
329 queue_signal(info.si_signo, &info);
330 }
331 }
332 break;
333 default:
334 pc = env->segs[R_CS].base + env->eip;
335 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
336 (long)pc, trapnr);
337 abort();
338 }
339 process_pending_signals(env);
340 }
341 }
342 #endif
343
344 #ifdef TARGET_ARM
345
346 /* XXX: find a better solution */
347 extern void tb_invalidate_page_range(abi_ulong start, abi_ulong end);
348
349 static void arm_cache_flush(abi_ulong start, abi_ulong last)
350 {
351 abi_ulong addr, last1;
352
353 if (last < start)
354 return;
355 addr = start;
356 for(;;) {
357 last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
358 if (last1 > last)
359 last1 = last;
360 tb_invalidate_page_range(addr, last1 + 1);
361 if (last1 == last)
362 break;
363 addr = last1 + 1;
364 }
365 }
366
367 void cpu_loop(CPUARMState *env)
368 {
369 int trapnr;
370 unsigned int n, insn;
371 target_siginfo_t info;
372 uint32_t addr;
373
374 for(;;) {
375 trapnr = cpu_arm_exec(env);
376 switch(trapnr) {
377 case EXCP_UDEF:
378 {
379 TaskState *ts = env->opaque;
380 uint32_t opcode;
381
382 /* we handle the FPU emulation here, as Linux */
383 /* we get the opcode */
384 /* FIXME - what to do if get_user() fails? */
385 get_user_u32(opcode, env->regs[15]);
386
387 if (EmulateAll(opcode, &ts->fpa, env) == 0) {
388 info.si_signo = SIGILL;
389 info.si_errno = 0;
390 info.si_code = TARGET_ILL_ILLOPN;
391 info._sifields._sigfault._addr = env->regs[15];
392 queue_signal(info.si_signo, &info);
393 } else {
394 /* increment PC */
395 env->regs[15] += 4;
396 }
397 }
398 break;
399 case EXCP_SWI:
400 case EXCP_BKPT:
401 {
402 env->eabi = 1;
403 /* system call */
404 if (trapnr == EXCP_BKPT) {
405 if (env->thumb) {
406 /* FIXME - what to do if get_user() fails? */
407 get_user_u16(insn, env->regs[15]);
408 n = insn & 0xff;
409 env->regs[15] += 2;
410 } else {
411 /* FIXME - what to do if get_user() fails? */
412 get_user_u32(insn, env->regs[15]);
413 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
414 env->regs[15] += 4;
415 }
416 } else {
417 if (env->thumb) {
418 /* FIXME - what to do if get_user() fails? */
419 get_user_u16(insn, env->regs[15] - 2);
420 n = insn & 0xff;
421 } else {
422 /* FIXME - what to do if get_user() fails? */
423 get_user_u32(insn, env->regs[15] - 4);
424 n = insn & 0xffffff;
425 }
426 }
427
428 if (n == ARM_NR_cacheflush) {
429 arm_cache_flush(env->regs[0], env->regs[1]);
430 } else if (n == ARM_NR_semihosting
431 || n == ARM_NR_thumb_semihosting) {
432 env->regs[0] = do_arm_semihosting (env);
433 } else if (n == 0 || n >= ARM_SYSCALL_BASE
434 || (env->thumb && n == ARM_THUMB_SYSCALL)) {
435 /* linux syscall */
436 if (env->thumb || n == 0) {
437 n = env->regs[7];
438 } else {
439 n -= ARM_SYSCALL_BASE;
440 env->eabi = 0;
441 }
442 env->regs[0] = do_syscall(env,
443 n,
444 env->regs[0],
445 env->regs[1],
446 env->regs[2],
447 env->regs[3],
448 env->regs[4],
449 env->regs[5]);
450 } else {
451 goto error;
452 }
453 }
454 break;
455 case EXCP_INTERRUPT:
456 /* just indicate that signals should be handled asap */
457 break;
458 case EXCP_PREFETCH_ABORT:
459 addr = env->cp15.c6_data;
460 goto do_segv;
461 case EXCP_DATA_ABORT:
462 addr = env->cp15.c6_insn;
463 goto do_segv;
464 do_segv:
465 {
466 info.si_signo = SIGSEGV;
467 info.si_errno = 0;
468 /* XXX: check env->error_code */
469 info.si_code = TARGET_SEGV_MAPERR;
470 info._sifields._sigfault._addr = addr;
471 queue_signal(info.si_signo, &info);
472 }
473 break;
474 case EXCP_DEBUG:
475 {
476 int sig;
477
478 sig = gdb_handlesig (env, TARGET_SIGTRAP);
479 if (sig)
480 {
481 info.si_signo = sig;
482 info.si_errno = 0;
483 info.si_code = TARGET_TRAP_BRKPT;
484 queue_signal(info.si_signo, &info);
485 }
486 }
487 break;
488 default:
489 error:
490 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
491 trapnr);
492 cpu_dump_state(env, stderr, fprintf, 0);
493 abort();
494 }
495 process_pending_signals(env);
496 }
497 }
498
499 #endif
500
501 #ifdef TARGET_SPARC
502
503 //#define DEBUG_WIN
504
505 /* WARNING: dealing with register windows _is_ complicated. More info
506 can be found at http://www.sics.se/~psm/sparcstack.html */
507 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
508 {
509 index = (index + cwp * 16) & (16 * NWINDOWS - 1);
510 /* wrap handling : if cwp is on the last window, then we use the
511 registers 'after' the end */
512 if (index < 8 && env->cwp == (NWINDOWS - 1))
513 index += (16 * NWINDOWS);
514 return index;
515 }
516
517 /* save the register window 'cwp1' */
518 static inline void save_window_offset(CPUSPARCState *env, int cwp1)
519 {
520 unsigned int i;
521 abi_ulong sp_ptr;
522
523 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
524 #if defined(DEBUG_WIN)
525 printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
526 (int)sp_ptr, cwp1);
527 #endif
528 for(i = 0; i < 16; i++) {
529 /* FIXME - what to do if put_user() fails? */
530 put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
531 sp_ptr += sizeof(abi_ulong);
532 }
533 }
534
535 static void save_window(CPUSPARCState *env)
536 {
537 #ifndef TARGET_SPARC64
538 unsigned int new_wim;
539 new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
540 ((1LL << NWINDOWS) - 1);
541 save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
542 env->wim = new_wim;
543 #else
544 save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
545 env->cansave++;
546 env->canrestore--;
547 #endif
548 }
549
550 static void restore_window(CPUSPARCState *env)
551 {
552 unsigned int new_wim, i, cwp1;
553 abi_ulong sp_ptr;
554
555 new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
556 ((1LL << NWINDOWS) - 1);
557
558 /* restore the invalid window */
559 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
560 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
561 #if defined(DEBUG_WIN)
562 printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
563 (int)sp_ptr, cwp1);
564 #endif
565 for(i = 0; i < 16; i++) {
566 /* FIXME - what to do if get_user() fails? */
567 get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
568 sp_ptr += sizeof(abi_ulong);
569 }
570 env->wim = new_wim;
571 #ifdef TARGET_SPARC64
572 env->canrestore++;
573 if (env->cleanwin < NWINDOWS - 1)
574 env->cleanwin++;
575 env->cansave--;
576 #endif
577 }
578
579 static void flush_windows(CPUSPARCState *env)
580 {
581 int offset, cwp1;
582
583 offset = 1;
584 for(;;) {
585 /* if restore would invoke restore_window(), then we can stop */
586 cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
587 if (env->wim & (1 << cwp1))
588 break;
589 save_window_offset(env, cwp1);
590 offset++;
591 }
592 /* set wim so that restore will reload the registers */
593 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
594 env->wim = 1 << cwp1;
595 #if defined(DEBUG_WIN)
596 printf("flush_windows: nb=%d\n", offset - 1);
597 #endif
598 }
599
600 void cpu_loop (CPUSPARCState *env)
601 {
602 int trapnr, ret;
603 target_siginfo_t info;
604
605 while (1) {
606 trapnr = cpu_sparc_exec (env);
607
608 switch (trapnr) {
609 #ifndef TARGET_SPARC64
610 case 0x88:
611 case 0x90:
612 #else
613 case 0x110:
614 case 0x16d:
615 #endif
616 ret = do_syscall (env, env->gregs[1],
617 env->regwptr[0], env->regwptr[1],
618 env->regwptr[2], env->regwptr[3],
619 env->regwptr[4], env->regwptr[5]);
620 if ((unsigned int)ret >= (unsigned int)(-515)) {
621 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
622 env->xcc |= PSR_CARRY;
623 #else
624 env->psr |= PSR_CARRY;
625 #endif
626 ret = -ret;
627 } else {
628 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
629 env->xcc &= ~PSR_CARRY;
630 #else
631 env->psr &= ~PSR_CARRY;
632 #endif
633 }
634 env->regwptr[0] = ret;
635 /* next instruction */
636 env->pc = env->npc;
637 env->npc = env->npc + 4;
638 break;
639 case 0x83: /* flush windows */
640 #ifdef TARGET_ABI32
641 case 0x103:
642 #endif
643 flush_windows(env);
644 /* next instruction */
645 env->pc = env->npc;
646 env->npc = env->npc + 4;
647 break;
648 #ifndef TARGET_SPARC64
649 case TT_WIN_OVF: /* window overflow */
650 save_window(env);
651 break;
652 case TT_WIN_UNF: /* window underflow */
653 restore_window(env);
654 break;
655 case TT_TFAULT:
656 case TT_DFAULT:
657 {
658 info.si_signo = SIGSEGV;
659 info.si_errno = 0;
660 /* XXX: check env->error_code */
661 info.si_code = TARGET_SEGV_MAPERR;
662 info._sifields._sigfault._addr = env->mmuregs[4];
663 queue_signal(info.si_signo, &info);
664 }
665 break;
666 #else
667 case TT_SPILL: /* window overflow */
668 save_window(env);
669 break;
670 case TT_FILL: /* window underflow */
671 restore_window(env);
672 break;
673 case TT_TFAULT:
674 case TT_DFAULT:
675 {
676 info.si_signo = SIGSEGV;
677 info.si_errno = 0;
678 /* XXX: check env->error_code */
679 info.si_code = TARGET_SEGV_MAPERR;
680 if (trapnr == TT_DFAULT)
681 info._sifields._sigfault._addr = env->dmmuregs[4];
682 else
683 info._sifields._sigfault._addr = env->tpc[env->tl];
684 queue_signal(info.si_signo, &info);
685 }
686 break;
687 #ifndef TARGET_ABI32
688 case 0x16e:
689 flush_windows(env);
690 sparc64_get_context(env);
691 break;
692 case 0x16f:
693 flush_windows(env);
694 sparc64_set_context(env);
695 break;
696 #endif
697 #endif
698 case EXCP_INTERRUPT:
699 /* just indicate that signals should be handled asap */
700 break;
701 case EXCP_DEBUG:
702 {
703 int sig;
704
705 sig = gdb_handlesig (env, TARGET_SIGTRAP);
706 if (sig)
707 {
708 info.si_signo = sig;
709 info.si_errno = 0;
710 info.si_code = TARGET_TRAP_BRKPT;
711 queue_signal(info.si_signo, &info);
712 }
713 }
714 break;
715 default:
716 printf ("Unhandled trap: 0x%x\n", trapnr);
717 cpu_dump_state(env, stderr, fprintf, 0);
718 exit (1);
719 }
720 process_pending_signals (env);
721 }
722 }
723
724 #endif
725
726 #ifdef TARGET_PPC
727 static inline uint64_t cpu_ppc_get_tb (CPUState *env)
728 {
729 /* TO FIX */
730 return 0;
731 }
732
733 uint32_t cpu_ppc_load_tbl (CPUState *env)
734 {
735 return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
736 }
737
738 uint32_t cpu_ppc_load_tbu (CPUState *env)
739 {
740 return cpu_ppc_get_tb(env) >> 32;
741 }
742
743 uint32_t cpu_ppc_load_atbl (CPUState *env)
744 {
745 return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
746 }
747
748 uint32_t cpu_ppc_load_atbu (CPUState *env)
749 {
750 return cpu_ppc_get_tb(env) >> 32;
751 }
752
753 uint32_t cpu_ppc601_load_rtcu (CPUState *env)
754 __attribute__ (( alias ("cpu_ppc_load_tbu") ));
755
756 uint32_t cpu_ppc601_load_rtcl (CPUState *env)
757 {
758 return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
759 }
760
761 /* XXX: to be fixed */
762 int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, target_ulong *valp)
763 {
764 return -1;
765 }
766
767 int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, target_ulong val)
768 {
769 return -1;
770 }
771
772 #define EXCP_DUMP(env, fmt, args...) \
773 do { \
774 fprintf(stderr, fmt , ##args); \
775 cpu_dump_state(env, stderr, fprintf, 0); \
776 if (loglevel != 0) { \
777 fprintf(logfile, fmt , ##args); \
778 cpu_dump_state(env, logfile, fprintf, 0); \
779 } \
780 } while (0)
781
782 void cpu_loop(CPUPPCState *env)
783 {
784 target_siginfo_t info;
785 int trapnr;
786 uint32_t ret;
787
788 for(;;) {
789 trapnr = cpu_ppc_exec(env);
790 switch(trapnr) {
791 case POWERPC_EXCP_NONE:
792 /* Just go on */
793 break;
794 case POWERPC_EXCP_CRITICAL: /* Critical input */
795 cpu_abort(env, "Critical interrupt while in user mode. "
796 "Aborting\n");
797 break;
798 case POWERPC_EXCP_MCHECK: /* Machine check exception */
799 cpu_abort(env, "Machine check exception while in user mode. "
800 "Aborting\n");
801 break;
802 case POWERPC_EXCP_DSI: /* Data storage exception */
803 EXCP_DUMP(env, "Invalid data memory access: 0x" ADDRX "\n",
804 env->spr[SPR_DAR]);
805 /* XXX: check this. Seems bugged */
806 switch (env->error_code & 0xFF000000) {
807 case 0x40000000:
808 info.si_signo = TARGET_SIGSEGV;
809 info.si_errno = 0;
810 info.si_code = TARGET_SEGV_MAPERR;
811 break;
812 case 0x04000000:
813 info.si_signo = TARGET_SIGILL;
814 info.si_errno = 0;
815 info.si_code = TARGET_ILL_ILLADR;
816 break;
817 case 0x08000000:
818 info.si_signo = TARGET_SIGSEGV;
819 info.si_errno = 0;
820 info.si_code = TARGET_SEGV_ACCERR;
821 break;
822 default:
823 /* Let's send a regular segfault... */
824 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
825 env->error_code);
826 info.si_signo = TARGET_SIGSEGV;
827 info.si_errno = 0;
828 info.si_code = TARGET_SEGV_MAPERR;
829 break;
830 }
831 info._sifields._sigfault._addr = env->nip;
832 queue_signal(info.si_signo, &info);
833 break;
834 case POWERPC_EXCP_ISI: /* Instruction storage exception */
835 EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" ADDRX "\n",
836 env->spr[SPR_SRR0]);
837 /* XXX: check this */
838 switch (env->error_code & 0xFF000000) {
839 case 0x40000000:
840 info.si_signo = TARGET_SIGSEGV;
841 info.si_errno = 0;
842 info.si_code = TARGET_SEGV_MAPERR;
843 break;
844 case 0x10000000:
845 case 0x08000000:
846 info.si_signo = TARGET_SIGSEGV;
847 info.si_errno = 0;
848 info.si_code = TARGET_SEGV_ACCERR;
849 break;
850 default:
851 /* Let's send a regular segfault... */
852 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
853 env->error_code);
854 info.si_signo = TARGET_SIGSEGV;
855 info.si_errno = 0;
856 info.si_code = TARGET_SEGV_MAPERR;
857 break;
858 }
859 info._sifields._sigfault._addr = env->nip - 4;
860 queue_signal(info.si_signo, &info);
861 break;
862 case POWERPC_EXCP_EXTERNAL: /* External input */
863 cpu_abort(env, "External interrupt while in user mode. "
864 "Aborting\n");
865 break;
866 case POWERPC_EXCP_ALIGN: /* Alignment exception */
867 EXCP_DUMP(env, "Unaligned memory access\n");
868 /* XXX: check this */
869 info.si_signo = TARGET_SIGBUS;
870 info.si_errno = 0;
871 info.si_code = TARGET_BUS_ADRALN;
872 info._sifields._sigfault._addr = env->nip - 4;
873 queue_signal(info.si_signo, &info);
874 break;
875 case POWERPC_EXCP_PROGRAM: /* Program exception */
876 /* XXX: check this */
877 switch (env->error_code & ~0xF) {
878 case POWERPC_EXCP_FP:
879 EXCP_DUMP(env, "Floating point program exception\n");
880 info.si_signo = TARGET_SIGFPE;
881 info.si_errno = 0;
882 switch (env->error_code & 0xF) {
883 case POWERPC_EXCP_FP_OX:
884 info.si_code = TARGET_FPE_FLTOVF;
885 break;
886 case POWERPC_EXCP_FP_UX:
887 info.si_code = TARGET_FPE_FLTUND;
888 break;
889 case POWERPC_EXCP_FP_ZX:
890 case POWERPC_EXCP_FP_VXZDZ:
891 info.si_code = TARGET_FPE_FLTDIV;
892 break;
893 case POWERPC_EXCP_FP_XX:
894 info.si_code = TARGET_FPE_FLTRES;
895 break;
896 case POWERPC_EXCP_FP_VXSOFT:
897 info.si_code = TARGET_FPE_FLTINV;
898 break;
899 case POWERPC_EXCP_FP_VXSNAN:
900 case POWERPC_EXCP_FP_VXISI:
901 case POWERPC_EXCP_FP_VXIDI:
902 case POWERPC_EXCP_FP_VXIMZ:
903 case POWERPC_EXCP_FP_VXVC:
904 case POWERPC_EXCP_FP_VXSQRT:
905 case POWERPC_EXCP_FP_VXCVI:
906 info.si_code = TARGET_FPE_FLTSUB;
907 break;
908 default:
909 EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
910 env->error_code);
911 break;
912 }
913 break;
914 case POWERPC_EXCP_INVAL:
915 EXCP_DUMP(env, "Invalid instruction\n");
916 info.si_signo = TARGET_SIGILL;
917 info.si_errno = 0;
918 switch (env->error_code & 0xF) {
919 case POWERPC_EXCP_INVAL_INVAL:
920 info.si_code = TARGET_ILL_ILLOPC;
921 break;
922 case POWERPC_EXCP_INVAL_LSWX:
923 info.si_code = TARGET_ILL_ILLOPN;
924 break;
925 case POWERPC_EXCP_INVAL_SPR:
926 info.si_code = TARGET_ILL_PRVREG;
927 break;
928 case POWERPC_EXCP_INVAL_FP:
929 info.si_code = TARGET_ILL_COPROC;
930 break;
931 default:
932 EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
933 env->error_code & 0xF);
934 info.si_code = TARGET_ILL_ILLADR;
935 break;
936 }
937 break;
938 case POWERPC_EXCP_PRIV:
939 EXCP_DUMP(env, "Privilege violation\n");
940 info.si_signo = TARGET_SIGILL;
941 info.si_errno = 0;
942 switch (env->error_code & 0xF) {
943 case POWERPC_EXCP_PRIV_OPC:
944 info.si_code = TARGET_ILL_PRVOPC;
945 break;
946 case POWERPC_EXCP_PRIV_REG:
947 info.si_code = TARGET_ILL_PRVREG;
948 break;
949 default:
950 EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
951 env->error_code & 0xF);
952 info.si_code = TARGET_ILL_PRVOPC;
953 break;
954 }
955 break;
956 case POWERPC_EXCP_TRAP:
957 cpu_abort(env, "Tried to call a TRAP\n");
958 break;
959 default:
960 /* Should not happen ! */
961 cpu_abort(env, "Unknown program exception (%02x)\n",
962 env->error_code);
963 break;
964 }
965 info._sifields._sigfault._addr = env->nip - 4;
966 queue_signal(info.si_signo, &info);
967 break;
968 case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
969 EXCP_DUMP(env, "No floating point allowed\n");
970 info.si_signo = TARGET_SIGILL;
971 info.si_errno = 0;
972 info.si_code = TARGET_ILL_COPROC;
973 info._sifields._sigfault._addr = env->nip - 4;
974 queue_signal(info.si_signo, &info);
975 break;
976 case POWERPC_EXCP_SYSCALL: /* System call exception */
977 cpu_abort(env, "Syscall exception while in user mode. "
978 "Aborting\n");
979 break;
980 case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
981 EXCP_DUMP(env, "No APU instruction allowed\n");
982 info.si_signo = TARGET_SIGILL;
983 info.si_errno = 0;
984 info.si_code = TARGET_ILL_COPROC;
985 info._sifields._sigfault._addr = env->nip - 4;
986 queue_signal(info.si_signo, &info);
987 break;
988 case POWERPC_EXCP_DECR: /* Decrementer exception */
989 cpu_abort(env, "Decrementer interrupt while in user mode. "
990 "Aborting\n");
991 break;
992 case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
993 cpu_abort(env, "Fix interval timer interrupt while in user mode. "
994 "Aborting\n");
995 break;
996 case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
997 cpu_abort(env, "Watchdog timer interrupt while in user mode. "
998 "Aborting\n");
999 break;
1000 case POWERPC_EXCP_DTLB: /* Data TLB error */
1001 cpu_abort(env, "Data TLB exception while in user mode. "
1002 "Aborting\n");
1003 break;
1004 case POWERPC_EXCP_ITLB: /* Instruction TLB error */
1005 cpu_abort(env, "Instruction TLB exception while in user mode. "
1006 "Aborting\n");
1007 break;
1008 case POWERPC_EXCP_DEBUG: /* Debug interrupt */
1009 /* XXX: check this */
1010 {
1011 int sig;
1012
1013 sig = gdb_handlesig(env, TARGET_SIGTRAP);
1014 if (sig) {
1015 info.si_signo = sig;
1016 info.si_errno = 0;
1017 info.si_code = TARGET_TRAP_BRKPT;
1018 queue_signal(info.si_signo, &info);
1019 }
1020 }
1021 break;
1022 case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
1023 EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
1024 info.si_signo = TARGET_SIGILL;
1025 info.si_errno = 0;
1026 info.si_code = TARGET_ILL_COPROC;
1027 info._sifields._sigfault._addr = env->nip - 4;
1028 queue_signal(info.si_signo, &info);
1029 break;
1030 case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
1031 cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
1032 break;
1033 case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
1034 cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
1035 break;
1036 case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
1037 cpu_abort(env, "Performance monitor exception not handled\n");
1038 break;
1039 case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
1040 cpu_abort(env, "Doorbell interrupt while in user mode. "
1041 "Aborting\n");
1042 break;
1043 case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
1044 cpu_abort(env, "Doorbell critical interrupt while in user mode. "
1045 "Aborting\n");
1046 break;
1047 case POWERPC_EXCP_RESET: /* System reset exception */
1048 cpu_abort(env, "Reset interrupt while in user mode. "
1049 "Aborting\n");
1050 break;
1051 case POWERPC_EXCP_DSEG: /* Data segment exception */
1052 cpu_abort(env, "Data segment exception while in user mode. "
1053 "Aborting\n");
1054 break;
1055 case POWERPC_EXCP_ISEG: /* Instruction segment exception */
1056 cpu_abort(env, "Instruction segment exception "
1057 "while in user mode. Aborting\n");
1058 break;
1059 /* PowerPC 64 with hypervisor mode support */
1060 case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
1061 cpu_abort(env, "Hypervisor decrementer interrupt "
1062 "while in user mode. Aborting\n");
1063 break;
1064 case POWERPC_EXCP_TRACE: /* Trace exception */
1065 /* Nothing to do:
1066 * we use this exception to emulate step-by-step execution mode.
1067 */
1068 break;
1069 /* PowerPC 64 with hypervisor mode support */
1070 case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
1071 cpu_abort(env, "Hypervisor data storage exception "
1072 "while in user mode. Aborting\n");
1073 break;
1074 case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
1075 cpu_abort(env, "Hypervisor instruction storage exception "
1076 "while in user mode. Aborting\n");
1077 break;
1078 case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
1079 cpu_abort(env, "Hypervisor data segment exception "
1080 "while in user mode. Aborting\n");
1081 break;
1082 case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
1083 cpu_abort(env, "Hypervisor instruction segment exception "
1084 "while in user mode. Aborting\n");
1085 break;
1086 case POWERPC_EXCP_VPU: /* Vector unavailable exception */
1087 EXCP_DUMP(env, "No Altivec instructions allowed\n");
1088 info.si_signo = TARGET_SIGILL;
1089 info.si_errno = 0;
1090 info.si_code = TARGET_ILL_COPROC;
1091 info._sifields._sigfault._addr = env->nip - 4;
1092 queue_signal(info.si_signo, &info);
1093 break;
1094 case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
1095 cpu_abort(env, "Programable interval timer interrupt "
1096 "while in user mode. Aborting\n");
1097 break;
1098 case POWERPC_EXCP_IO: /* IO error exception */
1099 cpu_abort(env, "IO error exception while in user mode. "
1100 "Aborting\n");
1101 break;
1102 case POWERPC_EXCP_RUNM: /* Run mode exception */
1103 cpu_abort(env, "Run mode exception while in user mode. "
1104 "Aborting\n");
1105 break;
1106 case POWERPC_EXCP_EMUL: /* Emulation trap exception */
1107 cpu_abort(env, "Emulation trap exception not handled\n");
1108 break;
1109 case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
1110 cpu_abort(env, "Instruction fetch TLB exception "
1111 "while in user-mode. Aborting");
1112 break;
1113 case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
1114 cpu_abort(env, "Data load TLB exception while in user-mode. "
1115 "Aborting");
1116 break;
1117 case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
1118 cpu_abort(env, "Data store TLB exception while in user-mode. "
1119 "Aborting");
1120 break;
1121 case POWERPC_EXCP_FPA: /* Floating-point assist exception */
1122 cpu_abort(env, "Floating-point assist exception not handled\n");
1123 break;
1124 case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
1125 cpu_abort(env, "Instruction address breakpoint exception "
1126 "not handled\n");
1127 break;
1128 case POWERPC_EXCP_SMI: /* System management interrupt */
1129 cpu_abort(env, "System management interrupt while in user mode. "
1130 "Aborting\n");
1131 break;
1132 case POWERPC_EXCP_THERM: /* Thermal interrupt */
1133 cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
1134 "Aborting\n");
1135 break;
1136 case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
1137 cpu_abort(env, "Performance monitor exception not handled\n");
1138 break;
1139 case POWERPC_EXCP_VPUA: /* Vector assist exception */
1140 cpu_abort(env, "Vector assist exception not handled\n");
1141 break;
1142 case POWERPC_EXCP_SOFTP: /* Soft patch exception */
1143 cpu_abort(env, "Soft patch exception not handled\n");
1144 break;
1145 case POWERPC_EXCP_MAINT: /* Maintenance exception */
1146 cpu_abort(env, "Maintenance exception while in user mode. "
1147 "Aborting\n");
1148 break;
1149 case POWERPC_EXCP_STOP: /* stop translation */
1150 /* We did invalidate the instruction cache. Go on */
1151 break;
1152 case POWERPC_EXCP_BRANCH: /* branch instruction: */
1153 /* We just stopped because of a branch. Go on */
1154 break;
1155 case POWERPC_EXCP_SYSCALL_USER:
1156 /* system call in user-mode emulation */
1157 /* WARNING:
1158 * PPC ABI uses overflow flag in cr0 to signal an error
1159 * in syscalls.
1160 */
1161 #if 0
1162 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
1163 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
1164 #endif
1165 env->crf[0] &= ~0x1;
1166 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
1167 env->gpr[5], env->gpr[6], env->gpr[7],
1168 env->gpr[8]);
1169 if (ret > (uint32_t)(-515)) {
1170 env->crf[0] |= 0x1;
1171 ret = -ret;
1172 }
1173 env->gpr[3] = ret;
1174 #if 0
1175 printf("syscall returned 0x%08x (%d)\n", ret, ret);
1176 #endif
1177 break;
1178 case EXCP_INTERRUPT:
1179 /* just indicate that signals should be handled asap */
1180 break;
1181 default:
1182 cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
1183 break;
1184 }
1185 process_pending_signals(env);
1186 }
1187 }
1188 #endif
1189
1190 #ifdef TARGET_MIPS
1191
1192 #define MIPS_SYS(name, args) args,
1193
1194 static const uint8_t mips_syscall_args[] = {
1195 MIPS_SYS(sys_syscall , 0) /* 4000 */
1196 MIPS_SYS(sys_exit , 1)
1197 MIPS_SYS(sys_fork , 0)
1198 MIPS_SYS(sys_read , 3)
1199 MIPS_SYS(sys_write , 3)
1200 MIPS_SYS(sys_open , 3) /* 4005 */
1201 MIPS_SYS(sys_close , 1)
1202 MIPS_SYS(sys_waitpid , 3)
1203 MIPS_SYS(sys_creat , 2)
1204 MIPS_SYS(sys_link , 2)
1205 MIPS_SYS(sys_unlink , 1) /* 4010 */
1206 MIPS_SYS(sys_execve , 0)
1207 MIPS_SYS(sys_chdir , 1)
1208 MIPS_SYS(sys_time , 1)
1209 MIPS_SYS(sys_mknod , 3)
1210 MIPS_SYS(sys_chmod , 2) /* 4015 */
1211 MIPS_SYS(sys_lchown , 3)
1212 MIPS_SYS(sys_ni_syscall , 0)
1213 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1214 MIPS_SYS(sys_lseek , 3)
1215 MIPS_SYS(sys_getpid , 0) /* 4020 */
1216 MIPS_SYS(sys_mount , 5)
1217 MIPS_SYS(sys_oldumount , 1)
1218 MIPS_SYS(sys_setuid , 1)
1219 MIPS_SYS(sys_getuid , 0)
1220 MIPS_SYS(sys_stime , 1) /* 4025 */
1221 MIPS_SYS(sys_ptrace , 4)
1222 MIPS_SYS(sys_alarm , 1)
1223 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1224 MIPS_SYS(sys_pause , 0)
1225 MIPS_SYS(sys_utime , 2) /* 4030 */
1226 MIPS_SYS(sys_ni_syscall , 0)
1227 MIPS_SYS(sys_ni_syscall , 0)
1228 MIPS_SYS(sys_access , 2)
1229 MIPS_SYS(sys_nice , 1)
1230 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1231 MIPS_SYS(sys_sync , 0)
1232 MIPS_SYS(sys_kill , 2)
1233 MIPS_SYS(sys_rename , 2)
1234 MIPS_SYS(sys_mkdir , 2)
1235 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1236 MIPS_SYS(sys_dup , 1)
1237 MIPS_SYS(sys_pipe , 0)
1238 MIPS_SYS(sys_times , 1)
1239 MIPS_SYS(sys_ni_syscall , 0)
1240 MIPS_SYS(sys_brk , 1) /* 4045 */
1241 MIPS_SYS(sys_setgid , 1)
1242 MIPS_SYS(sys_getgid , 0)
1243 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1244 MIPS_SYS(sys_geteuid , 0)
1245 MIPS_SYS(sys_getegid , 0) /* 4050 */
1246 MIPS_SYS(sys_acct , 0)
1247 MIPS_SYS(sys_umount , 2)
1248 MIPS_SYS(sys_ni_syscall , 0)
1249 MIPS_SYS(sys_ioctl , 3)
1250 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1251 MIPS_SYS(sys_ni_syscall , 2)
1252 MIPS_SYS(sys_setpgid , 2)
1253 MIPS_SYS(sys_ni_syscall , 0)
1254 MIPS_SYS(sys_olduname , 1)
1255 MIPS_SYS(sys_umask , 1) /* 4060 */
1256 MIPS_SYS(sys_chroot , 1)
1257 MIPS_SYS(sys_ustat , 2)
1258 MIPS_SYS(sys_dup2 , 2)
1259 MIPS_SYS(sys_getppid , 0)
1260 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1261 MIPS_SYS(sys_setsid , 0)
1262 MIPS_SYS(sys_sigaction , 3)
1263 MIPS_SYS(sys_sgetmask , 0)
1264 MIPS_SYS(sys_ssetmask , 1)
1265 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1266 MIPS_SYS(sys_setregid , 2)
1267 MIPS_SYS(sys_sigsuspend , 0)
1268 MIPS_SYS(sys_sigpending , 1)
1269 MIPS_SYS(sys_sethostname , 2)
1270 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1271 MIPS_SYS(sys_getrlimit , 2)
1272 MIPS_SYS(sys_getrusage , 2)
1273 MIPS_SYS(sys_gettimeofday, 2)
1274 MIPS_SYS(sys_settimeofday, 2)
1275 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1276 MIPS_SYS(sys_setgroups , 2)
1277 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1278 MIPS_SYS(sys_symlink , 2)
1279 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1280 MIPS_SYS(sys_readlink , 3) /* 4085 */
1281 MIPS_SYS(sys_uselib , 1)
1282 MIPS_SYS(sys_swapon , 2)
1283 MIPS_SYS(sys_reboot , 3)
1284 MIPS_SYS(old_readdir , 3)
1285 MIPS_SYS(old_mmap , 6) /* 4090 */
1286 MIPS_SYS(sys_munmap , 2)
1287 MIPS_SYS(sys_truncate , 2)
1288 MIPS_SYS(sys_ftruncate , 2)
1289 MIPS_SYS(sys_fchmod , 2)
1290 MIPS_SYS(sys_fchown , 3) /* 4095 */
1291 MIPS_SYS(sys_getpriority , 2)
1292 MIPS_SYS(sys_setpriority , 3)
1293 MIPS_SYS(sys_ni_syscall , 0)
1294 MIPS_SYS(sys_statfs , 2)
1295 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1296 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1297 MIPS_SYS(sys_socketcall , 2)
1298 MIPS_SYS(sys_syslog , 3)
1299 MIPS_SYS(sys_setitimer , 3)
1300 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1301 MIPS_SYS(sys_newstat , 2)
1302 MIPS_SYS(sys_newlstat , 2)
1303 MIPS_SYS(sys_newfstat , 2)
1304 MIPS_SYS(sys_uname , 1)
1305 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1306 MIPS_SYS(sys_vhangup , 0)
1307 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1308 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1309 MIPS_SYS(sys_wait4 , 4)
1310 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1311 MIPS_SYS(sys_sysinfo , 1)
1312 MIPS_SYS(sys_ipc , 6)
1313 MIPS_SYS(sys_fsync , 1)
1314 MIPS_SYS(sys_sigreturn , 0)
1315 MIPS_SYS(sys_clone , 0) /* 4120 */
1316 MIPS_SYS(sys_setdomainname, 2)
1317 MIPS_SYS(sys_newuname , 1)
1318 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1319 MIPS_SYS(sys_adjtimex , 1)
1320 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1321 MIPS_SYS(sys_sigprocmask , 3)
1322 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1323 MIPS_SYS(sys_init_module , 5)
1324 MIPS_SYS(sys_delete_module, 1)
1325 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1326 MIPS_SYS(sys_quotactl , 0)
1327 MIPS_SYS(sys_getpgid , 1)
1328 MIPS_SYS(sys_fchdir , 1)
1329 MIPS_SYS(sys_bdflush , 2)
1330 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1331 MIPS_SYS(sys_personality , 1)
1332 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1333 MIPS_SYS(sys_setfsuid , 1)
1334 MIPS_SYS(sys_setfsgid , 1)
1335 MIPS_SYS(sys_llseek , 5) /* 4140 */
1336 MIPS_SYS(sys_getdents , 3)
1337 MIPS_SYS(sys_select , 5)
1338 MIPS_SYS(sys_flock , 2)
1339 MIPS_SYS(sys_msync , 3)
1340 MIPS_SYS(sys_readv , 3) /* 4145 */
1341 MIPS_SYS(sys_writev , 3)
1342 MIPS_SYS(sys_cacheflush , 3)
1343 MIPS_SYS(sys_cachectl , 3)
1344 MIPS_SYS(sys_sysmips , 4)
1345 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1346 MIPS_SYS(sys_getsid , 1)
1347 MIPS_SYS(sys_fdatasync , 0)
1348 MIPS_SYS(sys_sysctl , 1)
1349 MIPS_SYS(sys_mlock , 2)
1350 MIPS_SYS(sys_munlock , 2) /* 4155 */
1351 MIPS_SYS(sys_mlockall , 1)
1352 MIPS_SYS(sys_munlockall , 0)
1353 MIPS_SYS(sys_sched_setparam, 2)
1354 MIPS_SYS(sys_sched_getparam, 2)
1355 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1356 MIPS_SYS(sys_sched_getscheduler, 1)
1357 MIPS_SYS(sys_sched_yield , 0)
1358 MIPS_SYS(sys_sched_get_priority_max, 1)
1359 MIPS_SYS(sys_sched_get_priority_min, 1)
1360 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1361 MIPS_SYS(sys_nanosleep, 2)
1362 MIPS_SYS(sys_mremap , 4)
1363 MIPS_SYS(sys_accept , 3)
1364 MIPS_SYS(sys_bind , 3)
1365 MIPS_SYS(sys_connect , 3) /* 4170 */
1366 MIPS_SYS(sys_getpeername , 3)
1367 MIPS_SYS(sys_getsockname , 3)
1368 MIPS_SYS(sys_getsockopt , 5)
1369 MIPS_SYS(sys_listen , 2)
1370 MIPS_SYS(sys_recv , 4) /* 4175 */
1371 MIPS_SYS(sys_recvfrom , 6)
1372 MIPS_SYS(sys_recvmsg , 3)
1373 MIPS_SYS(sys_send , 4)
1374 MIPS_SYS(sys_sendmsg , 3)
1375 MIPS_SYS(sys_sendto , 6) /* 4180 */
1376 MIPS_SYS(sys_setsockopt , 5)
1377 MIPS_SYS(sys_shutdown , 2)
1378 MIPS_SYS(sys_socket , 3)
1379 MIPS_SYS(sys_socketpair , 4)
1380 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1381 MIPS_SYS(sys_getresuid , 3)
1382 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1383 MIPS_SYS(sys_poll , 3)
1384 MIPS_SYS(sys_nfsservctl , 3)
1385 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1386 MIPS_SYS(sys_getresgid , 3)
1387 MIPS_SYS(sys_prctl , 5)
1388 MIPS_SYS(sys_rt_sigreturn, 0)
1389 MIPS_SYS(sys_rt_sigaction, 4)
1390 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1391 MIPS_SYS(sys_rt_sigpending, 2)
1392 MIPS_SYS(sys_rt_sigtimedwait, 4)
1393 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1394 MIPS_SYS(sys_rt_sigsuspend, 0)
1395 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1396 MIPS_SYS(sys_pwrite64 , 6)
1397 MIPS_SYS(sys_chown , 3)
1398 MIPS_SYS(sys_getcwd , 2)
1399 MIPS_SYS(sys_capget , 2)
1400 MIPS_SYS(sys_capset , 2) /* 4205 */
1401 MIPS_SYS(sys_sigaltstack , 0)
1402 MIPS_SYS(sys_sendfile , 4)
1403 MIPS_SYS(sys_ni_syscall , 0)
1404 MIPS_SYS(sys_ni_syscall , 0)
1405 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1406 MIPS_SYS(sys_truncate64 , 4)
1407 MIPS_SYS(sys_ftruncate64 , 4)
1408 MIPS_SYS(sys_stat64 , 2)
1409 MIPS_SYS(sys_lstat64 , 2)
1410 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1411 MIPS_SYS(sys_pivot_root , 2)
1412 MIPS_SYS(sys_mincore , 3)
1413 MIPS_SYS(sys_madvise , 3)
1414 MIPS_SYS(sys_getdents64 , 3)
1415 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1416 MIPS_SYS(sys_ni_syscall , 0)
1417 MIPS_SYS(sys_gettid , 0)
1418 MIPS_SYS(sys_readahead , 5)
1419 MIPS_SYS(sys_setxattr , 5)
1420 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1421 MIPS_SYS(sys_fsetxattr , 5)
1422 MIPS_SYS(sys_getxattr , 4)
1423 MIPS_SYS(sys_lgetxattr , 4)
1424 MIPS_SYS(sys_fgetxattr , 4)
1425 MIPS_SYS(sys_listxattr , 3) /* 4230 */
1426 MIPS_SYS(sys_llistxattr , 3)
1427 MIPS_SYS(sys_flistxattr , 3)
1428 MIPS_SYS(sys_removexattr , 2)
1429 MIPS_SYS(sys_lremovexattr, 2)
1430 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1431 MIPS_SYS(sys_tkill , 2)
1432 MIPS_SYS(sys_sendfile64 , 5)
1433 MIPS_SYS(sys_futex , 2)
1434 MIPS_SYS(sys_sched_setaffinity, 3)
1435 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1436 MIPS_SYS(sys_io_setup , 2)
1437 MIPS_SYS(sys_io_destroy , 1)
1438 MIPS_SYS(sys_io_getevents, 5)
1439 MIPS_SYS(sys_io_submit , 3)
1440 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1441 MIPS_SYS(sys_exit_group , 1)
1442 MIPS_SYS(sys_lookup_dcookie, 3)
1443 MIPS_SYS(sys_epoll_create, 1)
1444 MIPS_SYS(sys_epoll_ctl , 4)
1445 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1446 MIPS_SYS(sys_remap_file_pages, 5)
1447 MIPS_SYS(sys_set_tid_address, 1)
1448 MIPS_SYS(sys_restart_syscall, 0)
1449 MIPS_SYS(sys_fadvise64_64, 7)
1450 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1451 MIPS_SYS(sys_fstatfs64 , 2)
1452 MIPS_SYS(sys_timer_create, 3)
1453 MIPS_SYS(sys_timer_settime, 4)
1454 MIPS_SYS(sys_timer_gettime, 2)
1455 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1456 MIPS_SYS(sys_timer_delete, 1)
1457 MIPS_SYS(sys_clock_settime, 2)
1458 MIPS_SYS(sys_clock_gettime, 2)
1459 MIPS_SYS(sys_clock_getres, 2)
1460 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1461 MIPS_SYS(sys_tgkill , 3)
1462 MIPS_SYS(sys_utimes , 2)
1463 MIPS_SYS(sys_mbind , 4)
1464 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1465 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1466 MIPS_SYS(sys_mq_open , 4)
1467 MIPS_SYS(sys_mq_unlink , 1)
1468 MIPS_SYS(sys_mq_timedsend, 5)
1469 MIPS_SYS(sys_mq_timedreceive, 5)
1470 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1471 MIPS_SYS(sys_mq_getsetattr, 3)
1472 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1473 MIPS_SYS(sys_waitid , 4)
1474 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1475 MIPS_SYS(sys_add_key , 5)
1476 MIPS_SYS(sys_request_key, 4)
1477 MIPS_SYS(sys_keyctl , 5)
1478 MIPS_SYS(sys_set_thread_area, 1)
1479 MIPS_SYS(sys_inotify_init, 0)
1480 MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
1481 MIPS_SYS(sys_inotify_rm_watch, 2)
1482 MIPS_SYS(sys_migrate_pages, 4)
1483 MIPS_SYS(sys_openat, 4)
1484 MIPS_SYS(sys_mkdirat, 3)
1485 MIPS_SYS(sys_mknodat, 4) /* 4290 */
1486 MIPS_SYS(sys_fchownat, 5)
1487 MIPS_SYS(sys_futimesat, 3)
1488 MIPS_SYS(sys_fstatat64, 4)
1489 MIPS_SYS(sys_unlinkat, 3)
1490 MIPS_SYS(sys_renameat, 4) /* 4295 */
1491 MIPS_SYS(sys_linkat, 5)
1492 MIPS_SYS(sys_symlinkat, 3)
1493 MIPS_SYS(sys_readlinkat, 4)
1494 MIPS_SYS(sys_fchmodat, 3)
1495 MIPS_SYS(sys_faccessat, 3) /* 4300 */
1496 MIPS_SYS(sys_pselect6, 6)
1497 MIPS_SYS(sys_ppoll, 5)
1498 MIPS_SYS(sys_unshare, 1)
1499 MIPS_SYS(sys_splice, 4)
1500 MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
1501 MIPS_SYS(sys_tee, 4)
1502 MIPS_SYS(sys_vmsplice, 4)
1503 MIPS_SYS(sys_move_pages, 6)
1504 MIPS_SYS(sys_set_robust_list, 2)
1505 MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
1506 MIPS_SYS(sys_kexec_load, 4)
1507 MIPS_SYS(sys_getcpu, 3)
1508 MIPS_SYS(sys_epoll_pwait, 6)
1509 MIPS_SYS(sys_ioprio_set, 3)
1510 MIPS_SYS(sys_ioprio_get, 2)
1511 };
1512
1513 #undef MIPS_SYS
1514
1515 void cpu_loop(CPUMIPSState *env)
1516 {
1517 target_siginfo_t info;
1518 int trapnr, ret;
1519 unsigned int syscall_num;
1520
1521 for(;;) {
1522 trapnr = cpu_mips_exec(env);
1523 switch(trapnr) {
1524 case EXCP_SYSCALL:
1525 syscall_num = env->gpr[2][env->current_tc] - 4000;
1526 env->PC[env->current_tc] += 4;
1527 if (syscall_num >= sizeof(mips_syscall_args)) {
1528 ret = -ENOSYS;
1529 } else {
1530 int nb_args;
1531 abi_ulong sp_reg;
1532 abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
1533
1534 nb_args = mips_syscall_args[syscall_num];
1535 sp_reg = env->gpr[29][env->current_tc];
1536 switch (nb_args) {
1537 /* these arguments are taken from the stack */
1538 /* FIXME - what to do if get_user() fails? */
1539 case 8: get_user_ual(arg8, sp_reg + 28);
1540 case 7: get_user_ual(arg7, sp_reg + 24);
1541 case 6: get_user_ual(arg6, sp_reg + 20);
1542 case 5: get_user_ual(arg5, sp_reg + 16);
1543 default:
1544 break;
1545 }
1546 ret = do_syscall(env, env->gpr[2][env->current_tc],
1547 env->gpr[4][env->current_tc],
1548 env->gpr[5][env->current_tc],
1549 env->gpr[6][env->current_tc],
1550 env->gpr[7][env->current_tc],
1551 arg5, arg6/*, arg7, arg8*/);
1552 }
1553 if ((unsigned int)ret >= (unsigned int)(-1133)) {
1554 env->gpr[7][env->current_tc] = 1; /* error flag */
1555 ret = -ret;
1556 } else {
1557 env->gpr[7][env->current_tc] = 0; /* error flag */
1558 }
1559 env->gpr[2][env->current_tc] = ret;
1560 break;
1561 case EXCP_TLBL:
1562 case EXCP_TLBS:
1563 case EXCP_CpU:
1564 case EXCP_RI:
1565 info.si_signo = TARGET_SIGILL;
1566 info.si_errno = 0;
1567 info.si_code = 0;
1568 queue_signal(info.si_signo, &info);
1569 break;
1570 case EXCP_INTERRUPT:
1571 /* just indicate that signals should be handled asap */
1572 break;
1573 case EXCP_DEBUG:
1574 {
1575 int sig;
1576
1577 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1578 if (sig)
1579 {
1580 info.si_signo = sig;
1581 info.si_errno = 0;
1582 info.si_code = TARGET_TRAP_BRKPT;
1583 queue_signal(info.si_signo, &info);
1584 }
1585 }
1586 break;
1587 default:
1588 // error:
1589 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1590 trapnr);
1591 cpu_dump_state(env, stderr, fprintf, 0);
1592 abort();
1593 }
1594 process_pending_signals(env);
1595 }
1596 }
1597 #endif
1598
1599 #ifdef TARGET_SH4
1600 void cpu_loop (CPUState *env)
1601 {
1602 int trapnr, ret;
1603 target_siginfo_t info;
1604
1605 while (1) {
1606 trapnr = cpu_sh4_exec (env);
1607
1608 switch (trapnr) {
1609 case 0x160:
1610 ret = do_syscall(env,
1611 env->gregs[3],
1612 env->gregs[4],
1613 env->gregs[5],
1614 env->gregs[6],
1615 env->gregs[7],
1616 env->gregs[0],
1617 env->gregs[1]);
1618 env->gregs[0] = ret;
1619 env->pc += 2;
1620 break;
1621 case EXCP_INTERRUPT:
1622 /* just indicate that signals should be handled asap */
1623 break;
1624 case EXCP_DEBUG:
1625 {
1626 int sig;
1627
1628 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1629 if (sig)
1630 {
1631 info.si_signo = sig;
1632 info.si_errno = 0;
1633 info.si_code = TARGET_TRAP_BRKPT;
1634 queue_signal(info.si_signo, &info);
1635 }
1636 }
1637 break;
1638 case 0xa0:
1639 case 0xc0:
1640 info.si_signo = SIGSEGV;
1641 info.si_errno = 0;
1642 info.si_code = TARGET_SEGV_MAPERR;
1643 info._sifields._sigfault._addr = env->tea;
1644 queue_signal(info.si_signo, &info);
1645 break;
1646
1647 default:
1648 printf ("Unhandled trap: 0x%x\n", trapnr);
1649 cpu_dump_state(env, stderr, fprintf, 0);
1650 exit (1);
1651 }
1652 process_pending_signals (env);
1653 }
1654 }
1655 #endif
1656
1657 #ifdef TARGET_CRIS
1658 void cpu_loop (CPUState *env)
1659 {
1660 int trapnr, ret;
1661 target_siginfo_t info;
1662
1663 while (1) {
1664 trapnr = cpu_cris_exec (env);
1665 switch (trapnr) {
1666 case 0xaa:
1667 {
1668 info.si_signo = SIGSEGV;
1669 info.si_errno = 0;
1670 /* XXX: check env->error_code */
1671 info.si_code = TARGET_SEGV_MAPERR;
1672 info._sifields._sigfault._addr = env->debug1;
1673 queue_signal(info.si_signo, &info);
1674 }
1675 break;
1676 case EXCP_BREAK:
1677 ret = do_syscall(env,
1678 env->regs[9],
1679 env->regs[10],
1680 env->regs[11],
1681 env->regs[12],
1682 env->regs[13],
1683 env->pregs[7],
1684 env->pregs[11]);
1685 env->regs[10] = ret;
1686 env->pc += 2;
1687 break;
1688 case EXCP_DEBUG:
1689 {
1690 int sig;
1691
1692 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1693 if (sig)
1694 {
1695 info.si_signo = sig;
1696 info.si_errno = 0;
1697 info.si_code = TARGET_TRAP_BRKPT;
1698 queue_signal(info.si_signo, &info);
1699 }
1700 }
1701 break;
1702 default:
1703 printf ("Unhandled trap: 0x%x\n", trapnr);
1704 cpu_dump_state(env, stderr, fprintf, 0);
1705 exit (1);
1706 }
1707 process_pending_signals (env);
1708 }
1709 }
1710 #endif
1711
1712 #ifdef TARGET_M68K
1713
1714 void cpu_loop(CPUM68KState *env)
1715 {
1716 int trapnr;
1717 unsigned int n;
1718 target_siginfo_t info;
1719 TaskState *ts = env->opaque;
1720
1721 for(;;) {
1722 trapnr = cpu_m68k_exec(env);
1723 switch(trapnr) {
1724 case EXCP_ILLEGAL:
1725 {
1726 if (ts->sim_syscalls) {
1727 uint16_t nr;
1728 nr = lduw(env->pc + 2);
1729 env->pc += 4;
1730 do_m68k_simcall(env, nr);
1731 } else {
1732 goto do_sigill;
1733 }
1734 }
1735 break;
1736 case EXCP_HALT_INSN:
1737 /* Semihosing syscall. */
1738 env->pc += 4;
1739 do_m68k_semihosting(env, env->dregs[0]);
1740 break;
1741 case EXCP_LINEA:
1742 case EXCP_LINEF:
1743 case EXCP_UNSUPPORTED:
1744 do_sigill:
1745 info.si_signo = SIGILL;
1746 info.si_errno = 0;
1747 info.si_code = TARGET_ILL_ILLOPN;
1748 info._sifields._sigfault._addr = env->pc;
1749 queue_signal(info.si_signo, &info);
1750 break;
1751 case EXCP_TRAP0:
1752 {
1753 ts->sim_syscalls = 0;
1754 n = env->dregs[0];
1755 env->pc += 2;
1756 env->dregs[0] = do_syscall(env,
1757 n,
1758 env->dregs[1],
1759 env->dregs[2],
1760 env->dregs[3],
1761 env->dregs[4],
1762 env->dregs[5],
1763 env->dregs[6]);
1764 }
1765 break;
1766 case EXCP_INTERRUPT:
1767 /* just indicate that signals should be handled asap */
1768 break;
1769 case EXCP_ACCESS:
1770 {
1771 info.si_signo = SIGSEGV;
1772 info.si_errno = 0;
1773 /* XXX: check env->error_code */
1774 info.si_code = TARGET_SEGV_MAPERR;
1775 info._sifields._sigfault._addr = env->mmu.ar;
1776 queue_signal(info.si_signo, &info);
1777 }
1778 break;
1779 case EXCP_DEBUG:
1780 {
1781 int sig;
1782
1783 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1784 if (sig)
1785 {
1786 info.si_signo = sig;
1787 info.si_errno = 0;
1788 info.si_code = TARGET_TRAP_BRKPT;
1789 queue_signal(info.si_signo, &info);
1790 }
1791 }
1792 break;
1793 default:
1794 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1795 trapnr);
1796 cpu_dump_state(env, stderr, fprintf, 0);
1797 abort();
1798 }
1799 process_pending_signals(env);
1800 }
1801 }
1802 #endif /* TARGET_M68K */
1803
1804 #ifdef TARGET_ALPHA
1805 void cpu_loop (CPUState *env)
1806 {
1807 int trapnr;
1808 target_siginfo_t info;
1809
1810 while (1) {
1811 trapnr = cpu_alpha_exec (env);
1812
1813 switch (trapnr) {
1814 case EXCP_RESET:
1815 fprintf(stderr, "Reset requested. Exit\n");
1816 exit(1);
1817 break;
1818 case EXCP_MCHK:
1819 fprintf(stderr, "Machine check exception. Exit\n");
1820 exit(1);
1821 break;
1822 case EXCP_ARITH:
1823 fprintf(stderr, "Arithmetic trap.\n");
1824 exit(1);
1825 break;
1826 case EXCP_HW_INTERRUPT:
1827 fprintf(stderr, "External interrupt. Exit\n");
1828 exit(1);
1829 break;
1830 case EXCP_DFAULT:
1831 fprintf(stderr, "MMU data fault\n");
1832 exit(1);
1833 break;
1834 case EXCP_DTB_MISS_PAL:
1835 fprintf(stderr, "MMU data TLB miss in PALcode\n");
1836 exit(1);
1837 break;
1838 case EXCP_ITB_MISS:
1839 fprintf(stderr, "MMU instruction TLB miss\n");
1840 exit(1);
1841 break;
1842 case EXCP_ITB_ACV:
1843 fprintf(stderr, "MMU instruction access violation\n");
1844 exit(1);
1845 break;
1846 case EXCP_DTB_MISS_NATIVE:
1847 fprintf(stderr, "MMU data TLB miss\n");
1848 exit(1);
1849 break;
1850 case EXCP_UNALIGN:
1851 fprintf(stderr, "Unaligned access\n");
1852 exit(1);
1853 break;
1854 case EXCP_OPCDEC:
1855 fprintf(stderr, "Invalid instruction\n");
1856 exit(1);
1857 break;
1858 case EXCP_FEN:
1859 fprintf(stderr, "Floating-point not allowed\n");
1860 exit(1);
1861 break;
1862 case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1):
1863 fprintf(stderr, "Call to PALcode\n");
1864 call_pal(env, (trapnr >> 6) | 0x80);
1865 break;
1866 case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1):
1867 fprintf(stderr, "Privileged call to PALcode\n");
1868 exit(1);
1869 break;
1870 case EXCP_DEBUG:
1871 {
1872 int sig;
1873
1874 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1875 if (sig)
1876 {
1877 info.si_signo = sig;
1878 info.si_errno = 0;
1879 info.si_code = TARGET_TRAP_BRKPT;
1880 queue_signal(info.si_signo, &info);
1881 }
1882 }
1883 break;
1884 default:
1885 printf ("Unhandled trap: 0x%x\n", trapnr);
1886 cpu_dump_state(env, stderr, fprintf, 0);
1887 exit (1);
1888 }
1889 process_pending_signals (env);
1890 }
1891 }
1892 #endif /* TARGET_ALPHA */
1893
1894 void usage(void)
1895 {
1896 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n"
1897 "usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n"
1898 "Linux CPU emulator (compiled for %s emulation)\n"
1899 "\n"
1900 "Standard options:\n"
1901 "-h print this help\n"
1902 "-g port wait gdb connection to port\n"
1903 "-L path set the elf interpreter prefix (default=%s)\n"
1904 "-s size set the stack size in bytes (default=%ld)\n"
1905 "-cpu model select CPU (-cpu ? for list)\n"
1906 "-drop-ld-preload drop LD_PRELOAD for target process\n"
1907 "\n"
1908 "Debug options:\n"
1909 "-d options activate log (logfile=%s)\n"
1910 "-p pagesize set the host page size to 'pagesize'\n"
1911 "-strace log system calls\n"
1912 "\n"
1913 "Environment variables:\n"
1914 "QEMU_STRACE Print system calls and arguments similar to the\n"
1915 " 'strace' program. Enable by setting to any value.\n"
1916 ,
1917 TARGET_ARCH,
1918 interp_prefix,
1919 x86_stack_size,
1920 DEBUG_LOGFILE);
1921 _exit(1);
1922 }
1923
1924 /* XXX: currently only used for async signals (see signal.c) */
1925 CPUState *global_env;
1926
1927 /* used to free thread contexts */
1928 TaskState *first_task_state;
1929
1930 int main(int argc, char **argv)
1931 {
1932 const char *filename;
1933 const char *cpu_model;
1934 struct target_pt_regs regs1, *regs = &regs1;
1935 struct image_info info1, *info = &info1;
1936 TaskState ts1, *ts = &ts1;
1937 CPUState *env;
1938 int optind;
1939 const char *r;
1940 int gdbstub_port = 0;
1941 int drop_ld_preload = 0, environ_count = 0;
1942 char **target_environ, **wrk, **dst;
1943
1944 if (argc <= 1)
1945 usage();
1946
1947 /* init debug */
1948 cpu_set_log_filename(DEBUG_LOGFILE);
1949
1950 cpu_model = NULL;
1951 optind = 1;
1952 for(;;) {
1953 if (optind >= argc)
1954 break;
1955 r = argv[optind];
1956 if (r[0] != '-')
1957 break;
1958 optind++;
1959 r++;
1960 if (!strcmp(r, "-")) {
1961 break;
1962 } else if (!strcmp(r, "d")) {
1963 int mask;
1964 CPULogItem *item;
1965
1966 if (optind >= argc)
1967 break;
1968
1969 r = argv[optind++];
1970 mask = cpu_str_to_log_mask(r);
1971 if (!mask) {
1972 printf("Log items (comma separated):\n");
1973 for(item = cpu_log_items; item->mask != 0; item++) {
1974 printf("%-10s %s\n", item->name, item->help);
1975 }
1976 exit(1);
1977 }
1978 cpu_set_log(mask);
1979 } else if (!strcmp(r, "s")) {
1980 r = argv[optind++];
1981 x86_stack_size = strtol(r, (char **)&r, 0);
1982 if (x86_stack_size <= 0)
1983 usage();
1984 if (*r == 'M')
1985 x86_stack_size *= 1024 * 1024;
1986 else if (*r == 'k' || *r == 'K')
1987 x86_stack_size *= 1024;
1988 } else if (!strcmp(r, "L")) {
1989 interp_prefix = argv[optind++];
1990 } else if (!strcmp(r, "p")) {
1991 qemu_host_page_size = atoi(argv[optind++]);
1992 if (qemu_host_page_size == 0 ||
1993 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
1994 fprintf(stderr, "page size must be a power of two\n");
1995 exit(1);
1996 }
1997 } else if (!strcmp(r, "g")) {
1998 gdbstub_port = atoi(argv[optind++]);
1999 } else if (!strcmp(r, "r")) {
2000 qemu_uname_release = argv[optind++];
2001 } else if (!strcmp(r, "cpu")) {
2002 cpu_model = argv[optind++];
2003 if (strcmp(cpu_model, "?") == 0) {
2004 /* XXX: implement xxx_cpu_list for targets that still miss it */
2005 #if defined(cpu_list)
2006 cpu_list(stdout, &fprintf);
2007 #endif
2008 _exit(1);
2009 }
2010 } else if (!strcmp(r, "drop-ld-preload")) {
2011 drop_ld_preload = 1;
2012 } else if (!strcmp(r, "strace")) {
2013 do_strace = 1;
2014 } else
2015 {
2016 usage();
2017 }
2018 }
2019 if (optind >= argc)
2020 usage();
2021 filename = argv[optind];
2022
2023 /* Zero out regs */
2024 memset(regs, 0, sizeof(struct target_pt_regs));
2025
2026 /* Zero out image_info */
2027 memset(info, 0, sizeof(struct image_info));
2028
2029 /* Scan interp_prefix dir for replacement files. */
2030 init_paths(interp_prefix);
2031
2032 if (cpu_model == NULL) {
2033 #if defined(TARGET_I386)
2034 #ifdef TARGET_X86_64
2035 cpu_model = "qemu64";
2036 #else
2037 cpu_model = "qemu32";
2038 #endif
2039 #elif defined(TARGET_ARM)
2040 cpu_model = "arm926";
2041 #elif defined(TARGET_M68K)
2042 cpu_model = "any";
2043 #elif defined(TARGET_SPARC)
2044 #ifdef TARGET_SPARC64
2045 cpu_model = "TI UltraSparc II";
2046 #else
2047 cpu_model = "Fujitsu MB86904";
2048 #endif
2049 #elif defined(TARGET_MIPS)
2050 #if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
2051 cpu_model = "20Kc";
2052 #else
2053 cpu_model = "24Kf";
2054 #endif
2055 #elif defined(TARGET_PPC)
2056 #ifdef TARGET_PPC64
2057 cpu_model = "970";
2058 #else
2059 cpu_model = "750";
2060 #endif
2061 #else
2062 cpu_model = "any";
2063 #endif
2064 }
2065 /* NOTE: we need to init the CPU at this stage to get
2066 qemu_host_page_size */
2067 env = cpu_init(cpu_model);
2068 if (!env) {
2069 fprintf(stderr, "Unable to find CPU definition\n");
2070 exit(1);
2071 }
2072 global_env = env;
2073
2074 if (getenv("QEMU_STRACE")) {
2075 do_strace = 1;
2076 }
2077
2078 wrk = environ;
2079 while (*(wrk++))
2080 environ_count++;
2081
2082 target_environ = malloc((environ_count + 1) * sizeof(char *));
2083 if (!target_environ)
2084 abort();
2085 for (wrk = environ, dst = target_environ; *wrk; wrk++) {
2086 if (drop_ld_preload && !strncmp(*wrk, "LD_PRELOAD=", 11))
2087 continue;
2088 *(dst++) = strdup(*wrk);
2089 }
2090 *dst = NULL; /* NULL terminate target_environ */
2091
2092 if (loader_exec(filename, argv+optind, target_environ, regs, info) != 0) {
2093 printf("Error loading %s\n", filename);
2094 _exit(1);
2095 }
2096
2097 for (wrk = target_environ; *wrk; wrk++) {
2098 free(*wrk);
2099 }
2100
2101 free(target_environ);
2102
2103 if (loglevel) {
2104 page_dump(logfile);
2105
2106 fprintf(logfile, "start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
2107 fprintf(logfile, "end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code);
2108 fprintf(logfile, "start_code 0x" TARGET_ABI_FMT_lx "\n",
2109 info->start_code);
2110 fprintf(logfile, "start_data 0x" TARGET_ABI_FMT_lx "\n",
2111 info->start_data);
2112 fprintf(logfile, "end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data);
2113 fprintf(logfile, "start_stack 0x" TARGET_ABI_FMT_lx "\n",
2114 info->start_stack);
2115 fprintf(logfile, "brk 0x" TARGET_ABI_FMT_lx "\n", info->brk);
2116 fprintf(logfile, "entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
2117 }
2118
2119 target_set_brk(info->brk);
2120 syscall_init();
2121 signal_init();
2122
2123 /* build Task State */
2124 memset(ts, 0, sizeof(TaskState));
2125 env->opaque = ts;
2126 ts->used = 1;
2127 ts->info = info;
2128 env->user_mode_only = 1;
2129
2130 #if defined(TARGET_I386)
2131 cpu_x86_set_cpl(env, 3);
2132
2133 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
2134 env->hflags |= HF_PE_MASK;
2135 if (env->cpuid_features & CPUID_SSE) {
2136 env->cr[4] |= CR4_OSFXSR_MASK;
2137 env->hflags |= HF_OSFXSR_MASK;
2138 }
2139 #ifndef TARGET_ABI32
2140 /* enable 64 bit mode if possible */
2141 if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) {
2142 fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
2143 exit(1);
2144 }
2145 env->cr[4] |= CR4_PAE_MASK;
2146 env->efer |= MSR_EFER_LMA | MSR_EFER_LME;
2147 env->hflags |= HF_LMA_MASK;
2148 #endif
2149
2150 /* flags setup : we activate the IRQs by default as in user mode */
2151 env->eflags |= IF_MASK;
2152
2153 /* linux register setup */
2154 #ifndef TARGET_ABI32
2155 env->regs[R_EAX] = regs->rax;
2156 env->regs[R_EBX] = regs->rbx;
2157 env->regs[R_ECX] = regs->rcx;
2158 env->regs[R_EDX] = regs->rdx;
2159 env->regs[R_ESI] = regs->rsi;
2160 env->regs[R_EDI] = regs->rdi;
2161 env->regs[R_EBP] = regs->rbp;
2162 env->regs[R_ESP] = regs->rsp;
2163 env->eip = regs->rip;
2164 #else
2165 env->regs[R_EAX] = regs->eax;
2166 env->regs[R_EBX] = regs->ebx;
2167 env->regs[R_ECX] = regs->ecx;
2168 env->regs[R_EDX] = regs->edx;
2169 env->regs[R_ESI] = regs->esi;
2170 env->regs[R_EDI] = regs->edi;
2171 env->regs[R_EBP] = regs->ebp;
2172 env->regs[R_ESP] = regs->esp;
2173 env->eip = regs->eip;
2174 #endif
2175
2176 /* linux interrupt setup */
2177 env->idt.base = h2g(idt_table);
2178 env->idt.limit = sizeof(idt_table) - 1;
2179 set_idt(0, 0);
2180 set_idt(1, 0);
2181 set_idt(2, 0);
2182 set_idt(3, 3);
2183 set_idt(4, 3);
2184 set_idt(5, 3);
2185 set_idt(6, 0);
2186 set_idt(7, 0);
2187 set_idt(8, 0);
2188 set_idt(9, 0);
2189 set_idt(10, 0);
2190 set_idt(11, 0);
2191 set_idt(12, 0);
2192 set_idt(13, 0);
2193 set_idt(14, 0);
2194 set_idt(15, 0);
2195 set_idt(16, 0);
2196 set_idt(17, 0);
2197 set_idt(18, 0);
2198 set_idt(19, 0);
2199 set_idt(0x80, 3);
2200
2201 /* linux segment setup */
2202 {
2203 uint64_t *gdt_table;
2204 gdt_table = qemu_mallocz(sizeof(uint64_t) * TARGET_GDT_ENTRIES);
2205 env->gdt.base = h2g((unsigned long)gdt_table);
2206 env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
2207 #ifdef TARGET_ABI32
2208 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
2209 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
2210 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
2211 #else
2212 /* 64 bit code segment */
2213 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
2214 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
2215 DESC_L_MASK |
2216 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
2217 #endif
2218 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
2219 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
2220 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
2221 }
2222 cpu_x86_load_seg(env, R_CS, __USER_CS);
2223 cpu_x86_load_seg(env, R_SS, __USER_DS);
2224 #ifdef TARGET_ABI32
2225 cpu_x86_load_seg(env, R_DS, __USER_DS);
2226 cpu_x86_load_seg(env, R_ES, __USER_DS);
2227 cpu_x86_load_seg(env, R_FS, __USER_DS);
2228 cpu_x86_load_seg(env, R_GS, __USER_DS);
2229 /* This hack makes Wine work... */
2230 env->segs[R_FS].selector = 0;
2231 #else
2232 cpu_x86_load_seg(env, R_DS, 0);
2233 cpu_x86_load_seg(env, R_ES, 0);
2234 cpu_x86_load_seg(env, R_FS, 0);
2235 cpu_x86_load_seg(env, R_GS, 0);
2236 #endif
2237 #elif defined(TARGET_ARM)
2238 {
2239 int i;
2240 cpsr_write(env, regs->uregs[16], 0xffffffff);
2241 for(i = 0; i < 16; i++) {
2242 env->regs[i] = regs->uregs[i];
2243 }
2244 }
2245 #elif defined(TARGET_SPARC)
2246 {
2247 int i;
2248 env->pc = regs->pc;
2249 env->npc = regs->npc;
2250 env->y = regs->y;
2251 for(i = 0; i < 8; i++)
2252 env->gregs[i] = regs->u_regs[i];
2253 for(i = 0; i < 8; i++)
2254 env->regwptr[i] = regs->u_regs[i + 8];
2255 }
2256 #elif defined(TARGET_PPC)
2257 {
2258 int i;
2259
2260 #if defined(TARGET_PPC64)
2261 #if defined(TARGET_ABI32)
2262 env->msr &= ~((target_ulong)1 << MSR_SF);
2263 #else
2264 env->msr |= (target_ulong)1 << MSR_SF;
2265 #endif
2266 #endif
2267 env->nip = regs->nip;
2268 for(i = 0; i < 32; i++) {
2269 env->gpr[i] = regs->gpr[i];
2270 }
2271 }
2272 #elif defined(TARGET_M68K)
2273 {
2274 env->pc = regs->pc;
2275 env->dregs[0] = regs->d0;
2276 env->dregs[1] = regs->d1;
2277 env->dregs[2] = regs->d2;
2278 env->dregs[3] = regs->d3;
2279 env->dregs[4] = regs->d4;
2280 env->dregs[5] = regs->d5;
2281 env->dregs[6] = regs->d6;
2282 env->dregs[7] = regs->d7;
2283 env->aregs[0] = regs->a0;
2284 env->aregs[1] = regs->a1;
2285 env->aregs[2] = regs->a2;
2286 env->aregs[3] = regs->a3;
2287 env->aregs[4] = regs->a4;
2288 env->aregs[5] = regs->a5;
2289 env->aregs[6] = regs->a6;
2290 env->aregs[7] = regs->usp;
2291 env->sr = regs->sr;
2292 ts->sim_syscalls = 1;
2293 }
2294 #elif defined(TARGET_MIPS)
2295 {
2296 int i;
2297
2298 for(i = 0; i < 32; i++) {
2299 env->gpr[i][env->current_tc] = regs->regs[i];
2300 }
2301 env->PC[env->current_tc] = regs->cp0_epc;
2302 }
2303 #elif defined(TARGET_SH4)
2304 {
2305 int i;
2306
2307 for(i = 0; i < 16; i++) {
2308 env->gregs[i] = regs->regs[i];
2309 }
2310 env->pc = regs->pc;
2311 }
2312 #elif defined(TARGET_ALPHA)
2313 {
2314 int i;
2315
2316 for(i = 0; i < 28; i++) {
2317 env->ir[i] = ((abi_ulong *)regs)[i];
2318 }
2319 env->ipr[IPR_USP] = regs->usp;
2320 env->ir[30] = regs->usp;
2321 env->pc = regs->pc;
2322 env->unique = regs->unique;
2323 }
2324 #elif defined(TARGET_CRIS)
2325 {
2326 env->regs[0] = regs->r0;
2327 env->regs[1] = regs->r1;
2328 env->regs[2] = regs->r2;
2329 env->regs[3] = regs->r3;
2330 env->regs[4] = regs->r4;
2331 env->regs[5] = regs->r5;
2332 env->regs[6] = regs->r6;
2333 env->regs[7] = regs->r7;
2334 env->regs[8] = regs->r8;
2335 env->regs[9] = regs->r9;
2336 env->regs[10] = regs->r10;
2337 env->regs[11] = regs->r11;
2338 env->regs[12] = regs->r12;
2339 env->regs[13] = regs->r13;
2340 env->regs[14] = info->start_stack;
2341 env->regs[15] = regs->acr;
2342 env->pc = regs->erp;
2343 }
2344 #else
2345 #error unsupported target CPU
2346 #endif
2347
2348 #if defined(TARGET_ARM) || defined(TARGET_M68K)
2349 ts->stack_base = info->start_stack;
2350 ts->heap_base = info->brk;
2351 /* This will be filled in on the first SYS_HEAPINFO call. */
2352 ts->heap_limit = 0;
2353 #endif
2354
2355 if (gdbstub_port) {
2356 gdbserver_start (gdbstub_port);
2357 gdb_handlesig(env, 0);
2358 }
2359 cpu_loop(env);
2360 /* never exits */
2361 return 0;
2362 }
Stable branch of Qemu 0.9.1