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