]> git.proxmox.com Git - qemu.git/blame - linux-user/main.c
projects / qemu.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
kqemu.h include path fix
[qemu.git] / linux-user / main.c
CommitLineData
31e31b8a 1/*
93ac68bc 2 * qemu user main
31e31b8a
FB		 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>
04369ff2 23#include <string.h>
31e31b8a 24#include <errno.h>
0ecfa993 25#include <unistd.h>
31e31b8a 26
3ef693a0 27#include "qemu.h"
31e31b8a 28
3ef693a0 29#define DEBUG_LOGFILE "/tmp/qemu.log"
586314f2 30
83fb7adf
FB		 31#ifdef __APPLE__
32#include <crt_externs.h>
33# define environ (*_NSGetEnviron())
34#endif
35
74cd30b8 36static const char *interp_prefix = CONFIG_QEMU_PREFIX;
586314f2 37
3a4739d6 38#if defined(__i386__) && !defined(CONFIG_STATIC)
f801f97e
FB		 39/* Force usage of an ELF interpreter even if it is an ELF shared
40 object ! */
41const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
4304763b 42#endif
74cd30b8 43
93ac68bc 44/* for recent libc, we add these dummy symbols which are not declared
74cd30b8 45 when generating a linked object (bug in ld ?) */
fbf59244 46#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC)
c6981055
FB		 47long __preinit_array_start[0];
48long __preinit_array_end[0];
74cd30b8
FB		 49long __init_array_start[0];
50long __init_array_end[0];
51long __fini_array_start[0];
52long __fini_array_end[0];
53#endif
54
9de5e440
FB		 55/* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
56 we allocate a bigger stack. Need a better solution, for example
57 by remapping the process stack directly at the right place */
58unsigned long x86_stack_size = 512 * 1024;
31e31b8a
FB		 59
60void gemu_log(const char *fmt, ...)
61{
62 va_list ap;
63
64 va_start(ap, fmt);
65 vfprintf(stderr, fmt, ap);
66 va_end(ap);
67}
68
61190b14 69void cpu_outb(CPUState *env, int addr, int val)
367e86e8
FB		 70{
71 fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
72}
73
61190b14 74void cpu_outw(CPUState *env, int addr, int val)
367e86e8
FB		 75{
76 fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
77}
78
61190b14 79void cpu_outl(CPUState *env, int addr, int val)
367e86e8
FB		 80{
81 fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
82}
83
61190b14 84int cpu_inb(CPUState *env, int addr)
367e86e8
FB		 85{
86 fprintf(stderr, "inb: port=0x%04x\n", addr);
87 return 0;
88}
89
61190b14 90int cpu_inw(CPUState *env, int addr)
367e86e8
FB		 91{
92 fprintf(stderr, "inw: port=0x%04x\n", addr);
93 return 0;
94}
95
61190b14 96int cpu_inl(CPUState *env, int addr)
367e86e8
FB		 97{
98 fprintf(stderr, "inl: port=0x%04x\n", addr);
99 return 0;
100}
101
a541f297 102int cpu_get_pic_interrupt(CPUState *env)
92ccca6a
FB		 103{
104 return -1;
105}
106
28ab0e2e
FB		 107/* timers for rdtsc */
108
109#if defined(__i386__)
110
111int64_t cpu_get_real_ticks(void)
112{
113 int64_t val;
114 asm volatile ("rdtsc" : "=A" (val));
115 return val;
116}
117
118#elif defined(__x86_64__)
119
120int64_t cpu_get_real_ticks(void)
121{
122 uint32_t low,high;
123 int64_t val;
124 asm volatile("rdtsc" : "=a" (low), "=d" (high));
125 val = high;
126 val <<= 32;
127 val |= low;
128 return val;
129}
130
131#else
132
133static uint64_t emu_time;
134
135int64_t cpu_get_real_ticks(void)
136{
137 return emu_time++;
138}
139
140#endif
141
a541f297
FB		 142#ifdef TARGET_I386
143/***********************************************************/
144/* CPUX86 core interface */
145
28ab0e2e
FB		 146uint64_t cpu_get_tsc(CPUX86State *env)
147{
148 return cpu_get_real_ticks();
149}
150
f4beb510
FB		 151static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
152 int flags)
6dbad63e 153{
f4beb510 154 unsigned int e1, e2;
6dbad63e
FB		 155 e1 = (addr << 16) | (limit & 0xffff);
156 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
f4beb510
FB		 157 e2 |= flags;
158 stl((uint8_t *)ptr, e1);
159 stl((uint8_t *)ptr + 4, e2);
160}
161
162static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
163 unsigned long addr, unsigned int sel)
164{
165 unsigned int e1, e2;
166 e1 = (addr & 0xffff) | (sel << 16);
167 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
6dbad63e
FB		 168 stl((uint8_t *)ptr, e1);
169 stl((uint8_t *)ptr + 4, e2);
170}
171
172uint64_t gdt_table[6];
f4beb510
FB		 173uint64_t idt_table[256];
174
175/* only dpl matters as we do only user space emulation */
176static void set_idt(int n, unsigned int dpl)
177{
178 set_gate(idt_table + n, 0, dpl, 0, 0);
179}
31e31b8a 180
89e957e7 181void cpu_loop(CPUX86State *env)
1b6b029e 182{
bc8a22cc 183 int trapnr;
80a9d035 184 target_ulong pc;
9de5e440 185 target_siginfo_t info;
851e67a1 186
1b6b029e 187 for(;;) {
bc8a22cc 188 trapnr = cpu_x86_exec(env);
bc8a22cc 189 switch(trapnr) {
f4beb510
FB		 190 case 0x80:
191 /* linux syscall */
192 env->regs[R_EAX] = do_syscall(env,
193 env->regs[R_EAX],
194 env->regs[R_EBX],
195 env->regs[R_ECX],
196 env->regs[R_EDX],
197 env->regs[R_ESI],
198 env->regs[R_EDI],
199 env->regs[R_EBP]);
200 break;
201 case EXCP0B_NOSEG:
202 case EXCP0C_STACK:
203 info.si_signo = SIGBUS;
204 info.si_errno = 0;
205 info.si_code = TARGET_SI_KERNEL;
206 info._sifields._sigfault._addr = 0;
207 queue_signal(info.si_signo, &info);
208 break;
1b6b029e 209 case EXCP0D_GPF:
851e67a1 210 if (env->eflags & VM_MASK) {
89e957e7 211 handle_vm86_fault(env);
1b6b029e 212 } else {
f4beb510
FB		 213 info.si_signo = SIGSEGV;
214 info.si_errno = 0;
215 info.si_code = TARGET_SI_KERNEL;
216 info._sifields._sigfault._addr = 0;
217 queue_signal(info.si_signo, &info);
1b6b029e
FB		 218 }
219 break;
b689bc57
FB		 220 case EXCP0E_PAGE:
221 info.si_signo = SIGSEGV;
222 info.si_errno = 0;
223 if (!(env->error_code & 1))
224 info.si_code = TARGET_SEGV_MAPERR;
225 else
226 info.si_code = TARGET_SEGV_ACCERR;
970a87a6 227 info._sifields._sigfault._addr = env->cr[2];
b689bc57
FB		 228 queue_signal(info.si_signo, &info);
229 break;
9de5e440 230 case EXCP00_DIVZ:
bc8a22cc 231 if (env->eflags & VM_MASK) {
447db213 232 handle_vm86_trap(env, trapnr);
bc8a22cc
FB		 233 } else {
234 /* division by zero */
235 info.si_signo = SIGFPE;
236 info.si_errno = 0;
237 info.si_code = TARGET_FPE_INTDIV;
238 info._sifields._sigfault._addr = env->eip;
239 queue_signal(info.si_signo, &info);
240 }
9de5e440 241 break;
447db213
FB		 242 case EXCP01_SSTP:
243 case EXCP03_INT3:
244 if (env->eflags & VM_MASK) {
245 handle_vm86_trap(env, trapnr);
246 } else {
247 info.si_signo = SIGTRAP;
248 info.si_errno = 0;
249 if (trapnr == EXCP01_SSTP) {
250 info.si_code = TARGET_TRAP_BRKPT;
251 info._sifields._sigfault._addr = env->eip;
252 } else {
253 info.si_code = TARGET_SI_KERNEL;
254 info._sifields._sigfault._addr = 0;
255 }
256 queue_signal(info.si_signo, &info);
257 }
258 break;
9de5e440
FB		 259 case EXCP04_INTO:
260 case EXCP05_BOUND:
bc8a22cc 261 if (env->eflags & VM_MASK) {
447db213 262 handle_vm86_trap(env, trapnr);
bc8a22cc
FB		 263 } else {
264 info.si_signo = SIGSEGV;
265 info.si_errno = 0;
b689bc57 266 info.si_code = TARGET_SI_KERNEL;
bc8a22cc
FB		 267 info._sifields._sigfault._addr = 0;
268 queue_signal(info.si_signo, &info);
269 }
9de5e440
FB		 270 break;
271 case EXCP06_ILLOP:
272 info.si_signo = SIGILL;
273 info.si_errno = 0;
274 info.si_code = TARGET_ILL_ILLOPN;
275 info._sifields._sigfault._addr = env->eip;
276 queue_signal(info.si_signo, &info);
277 break;
278 case EXCP_INTERRUPT:
279 /* just indicate that signals should be handled asap */
280 break;
1fddef4b
FB		 281 case EXCP_DEBUG:
282 {
283 int sig;
284
285 sig = gdb_handlesig (env, TARGET_SIGTRAP);
286 if (sig)
287 {
288 info.si_signo = sig;
289 info.si_errno = 0;
290 info.si_code = TARGET_TRAP_BRKPT;
291 queue_signal(info.si_signo, &info);
292 }
293 }
294 break;
1b6b029e 295 default:
970a87a6 296 pc = env->segs[R_CS].base + env->eip;
bc8a22cc
FB		 297 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
298 (long)pc, trapnr);
1b6b029e
FB		 299 abort();
300 }
66fb9763 301 process_pending_signals(env);
1b6b029e
FB		 302 }
303}
b346ff46
FB		 304#endif
305
306#ifdef TARGET_ARM
307
6f1f31c0
FB		 308/* XXX: find a better solution */
309extern void tb_invalidate_page_range(target_ulong start, target_ulong end);
310
311static void arm_cache_flush(target_ulong start, target_ulong last)
312{
313 target_ulong addr, last1;
314
315 if (last < start)
316 return;
317 addr = start;
318 for(;;) {
319 last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
320 if (last1 > last)
321 last1 = last;
322 tb_invalidate_page_range(addr, last1 + 1);
323 if (last1 == last)
324 break;
325 addr = last1 + 1;
326 }
327}
328
b346ff46
FB		 329void cpu_loop(CPUARMState *env)
330{
331 int trapnr;
332 unsigned int n, insn;
333 target_siginfo_t info;
b5ff1b31 334 uint32_t addr;
b346ff46
FB		 335
336 for(;;) {
337 trapnr = cpu_arm_exec(env);
338 switch(trapnr) {
339 case EXCP_UDEF:
c6981055
FB		 340 {
341 TaskState *ts = env->opaque;
342 uint32_t opcode;
343
344 /* we handle the FPU emulation here, as Linux */
345 /* we get the opcode */
346 opcode = ldl_raw((uint8_t *)env->regs[15]);
347
348 if (EmulateAll(opcode, &ts->fpa, env->regs) == 0) {
349 info.si_signo = SIGILL;
350 info.si_errno = 0;
351 info.si_code = TARGET_ILL_ILLOPN;
352 info._sifields._sigfault._addr = env->regs[15];
353 queue_signal(info.si_signo, &info);
354 } else {
355 /* increment PC */
356 env->regs[15] += 4;
357 }
358 }
b346ff46
FB		 359 break;
360 case EXCP_SWI:
06c949e6 361 case EXCP_BKPT:
b346ff46
FB		 362 {
363 /* system call */
06c949e6
PB		 364 if (trapnr == EXCP_BKPT) {
365 if (env->thumb) {
366 insn = lduw((void *)(env->regs[15]));
367 n = insn & 0xff;
368 env->regs[15] += 2;
369 } else {
370 insn = ldl((void *)(env->regs[15]));
371 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
372 env->regs[15] += 4;
373 }
192c7bd9 374 } else {
06c949e6
PB		 375 if (env->thumb) {
376 insn = lduw((void *)(env->regs[15] - 2));
377 n = insn & 0xff;
378 } else {
379 insn = ldl((void *)(env->regs[15] - 4));
380 n = insn & 0xffffff;
381 }
192c7bd9
FB		 382 }
383
6f1f31c0
FB		 384 if (n == ARM_NR_cacheflush) {
385 arm_cache_flush(env->regs[0], env->regs[1]);
a4f81979
FB		 386 } else if (n == ARM_NR_semihosting
387 || n == ARM_NR_thumb_semihosting) {
388 env->regs[0] = do_arm_semihosting (env);
192c7bd9
FB		 389 } else if (n >= ARM_SYSCALL_BASE
390 || (env->thumb && n == ARM_THUMB_SYSCALL)) {
b346ff46 391 /* linux syscall */
192c7bd9
FB		 392 if (env->thumb) {
393 n = env->regs[7];
394 } else {
395 n -= ARM_SYSCALL_BASE;
396 }
b346ff46
FB		 397 env->regs[0] = do_syscall(env,
398 n,
399 env->regs[0],
400 env->regs[1],
401 env->regs[2],
402 env->regs[3],
403 env->regs[4],
e1a2849c 404 env->regs[5]);
b346ff46
FB		 405 } else {
406 goto error;
407 }
408 }
409 break;
43fff238
FB		 410 case EXCP_INTERRUPT:
411 /* just indicate that signals should be handled asap */
412 break;
68016c62 413 case EXCP_PREFETCH_ABORT:
b5ff1b31
FB		 414 addr = env->cp15.c6_data;
415 goto do_segv;
68016c62 416 case EXCP_DATA_ABORT:
b5ff1b31
FB		 417 addr = env->cp15.c6_insn;
418 goto do_segv;
419 do_segv:
68016c62
FB		 420 {
421 info.si_signo = SIGSEGV;
422 info.si_errno = 0;
423 /* XXX: check env->error_code */
424 info.si_code = TARGET_SEGV_MAPERR;
b5ff1b31 425 info._sifields._sigfault._addr = addr;
68016c62
FB		 426 queue_signal(info.si_signo, &info);
427 }
428 break;
1fddef4b
FB		 429 case EXCP_DEBUG:
430 {
431 int sig;
432
433 sig = gdb_handlesig (env, TARGET_SIGTRAP);
434 if (sig)
435 {
436 info.si_signo = sig;
437 info.si_errno = 0;
438 info.si_code = TARGET_TRAP_BRKPT;
439 queue_signal(info.si_signo, &info);
440 }
441 }
442 break;
b346ff46
FB		 443 default:
444 error:
445 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
446 trapnr);
7fe48483 447 cpu_dump_state(env, stderr, fprintf, 0);
b346ff46
FB		 448 abort();
449 }
450 process_pending_signals(env);
451 }
452}
453
454#endif
1b6b029e 455
93ac68bc
FB		 456#ifdef TARGET_SPARC
457
060366c5
FB		 458//#define DEBUG_WIN
459
2623cbaf
FB		 460/* WARNING: dealing with register windows _is_ complicated. More info
461 can be found at http://www.sics.se/~psm/sparcstack.html */
060366c5
FB		 462static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
463{
464 index = (index + cwp * 16) & (16 * NWINDOWS - 1);
465 /* wrap handling : if cwp is on the last window, then we use the
466 registers 'after' the end */
467 if (index < 8 && env->cwp == (NWINDOWS - 1))
468 index += (16 * NWINDOWS);
469 return index;
470}
471
2623cbaf
FB		 472/* save the register window 'cwp1' */
473static inline void save_window_offset(CPUSPARCState *env, int cwp1)
060366c5 474{
2623cbaf 475 unsigned int i;
060366c5
FB		 476 uint32_t *sp_ptr;
477
060366c5
FB		 478 sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]);
479#if defined(DEBUG_WIN)
480 printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
481 (int)sp_ptr, cwp1);
482#endif
2623cbaf
FB		 483 for(i = 0; i < 16; i++) {
484 put_user(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
485 sp_ptr++;
486 }
060366c5
FB		 487}
488
489static void save_window(CPUSPARCState *env)
490{
2623cbaf
FB		 491 unsigned int new_wim;
492 new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
493 ((1LL << NWINDOWS) - 1);
494 save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
495 env->wim = new_wim;
060366c5
FB		 496}
497
498static void restore_window(CPUSPARCState *env)
499{
500 unsigned int new_wim, i, cwp1;
2623cbaf 501 uint32_t *sp_ptr, reg;
060366c5
FB		 502
503 new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
504 ((1LL << NWINDOWS) - 1);
505
506 /* restore the invalid window */
507 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
508 sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]);
509#if defined(DEBUG_WIN)
510 printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
511 (int)sp_ptr, cwp1);
512#endif
2623cbaf
FB		 513 for(i = 0; i < 16; i++) {
514 get_user(reg, sp_ptr);
515 env->regbase[get_reg_index(env, cwp1, 8 + i)] = reg;
516 sp_ptr++;
517 }
060366c5
FB		 518 env->wim = new_wim;
519}
520
521static void flush_windows(CPUSPARCState *env)
522{
523 int offset, cwp1;
2623cbaf
FB		 524
525 offset = 1;
060366c5
FB		 526 for(;;) {
527 /* if restore would invoke restore_window(), then we can stop */
2623cbaf 528 cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
060366c5
FB		 529 if (env->wim & (1 << cwp1))
530 break;
2623cbaf 531 save_window_offset(env, cwp1);
060366c5
FB		 532 offset++;
533 }
2623cbaf
FB		 534 /* set wim so that restore will reload the registers */
535 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
536 env->wim = 1 << cwp1;
537#if defined(DEBUG_WIN)
538 printf("flush_windows: nb=%d\n", offset - 1);
80a9d035 539#endif
2623cbaf 540}
060366c5 541
93ac68bc
FB		 542void cpu_loop (CPUSPARCState *env)
543{
060366c5 544 int trapnr, ret;
61ff6f58 545 target_siginfo_t info;
060366c5
FB		 546
547 while (1) {
548 trapnr = cpu_sparc_exec (env);
549
550 switch (trapnr) {
551 case 0x88:
552 case 0x90:
553 ret = do_syscall (env, env->gregs[1],
554 env->regwptr[0], env->regwptr[1],
555 env->regwptr[2], env->regwptr[3],
556 env->regwptr[4], env->regwptr[5]);
557 if ((unsigned int)ret >= (unsigned int)(-515)) {
558 env->psr |= PSR_CARRY;
559 ret = -ret;
560 } else {
561 env->psr &= ~PSR_CARRY;
562 }
563 env->regwptr[0] = ret;
564 /* next instruction */
565 env->pc = env->npc;
566 env->npc = env->npc + 4;
567 break;
568 case 0x83: /* flush windows */
2623cbaf 569 flush_windows(env);
060366c5
FB		 570 /* next instruction */
571 env->pc = env->npc;
572 env->npc = env->npc + 4;
573 break;
3475187d 574#ifndef TARGET_SPARC64
060366c5
FB		 575 case TT_WIN_OVF: /* window overflow */
576 save_window(env);
577 break;
578 case TT_WIN_UNF: /* window underflow */
579 restore_window(env);
580 break;
61ff6f58
FB		 581 case TT_TFAULT:
582 case TT_DFAULT:
583 {
584 info.si_signo = SIGSEGV;
585 info.si_errno = 0;
586 /* XXX: check env->error_code */
587 info.si_code = TARGET_SEGV_MAPERR;
588 info._sifields._sigfault._addr = env->mmuregs[4];
589 queue_signal(info.si_signo, &info);
590 }
591 break;
3475187d
FB		 592#else
593 // XXX
594#endif
e80cfcfc
FB		 595 case 0x100: // XXX, why do we get these?
596 break;
1fddef4b
FB		 597 case EXCP_DEBUG:
598 {
599 int sig;
600
601 sig = gdb_handlesig (env, TARGET_SIGTRAP);
602 if (sig)
603 {
604 info.si_signo = sig;
605 info.si_errno = 0;
606 info.si_code = TARGET_TRAP_BRKPT;
607 queue_signal(info.si_signo, &info);
608 }
609 }
610 break;
060366c5
FB		 611 default:
612 printf ("Unhandled trap: 0x%x\n", trapnr);
7fe48483 613 cpu_dump_state(env, stderr, fprintf, 0);
060366c5
FB		 614 exit (1);
615 }
616 process_pending_signals (env);
617 }
93ac68bc
FB		 618}
619
620#endif
621
67867308 622#ifdef TARGET_PPC
9fddaa0c
FB		 623
624static inline uint64_t cpu_ppc_get_tb (CPUState *env)
625{
626 /* TO FIX */
627 return 0;
628}
629
630uint32_t cpu_ppc_load_tbl (CPUState *env)
631{
632 return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
633}
634
635uint32_t cpu_ppc_load_tbu (CPUState *env)
636{
637 return cpu_ppc_get_tb(env) >> 32;
638}
639
640static void cpu_ppc_store_tb (CPUState *env, uint64_t value)
641{
642 /* TO FIX */
643}
644
645void cpu_ppc_store_tbu (CPUState *env, uint32_t value)
646{
647 cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env));
648}
649
650void cpu_ppc_store_tbl (CPUState *env, uint32_t value)
651{
652 cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value);
653}
654
655uint32_t cpu_ppc_load_decr (CPUState *env)
656{
657 /* TO FIX */
658 return -1;
659}
660
661void cpu_ppc_store_decr (CPUState *env, uint32_t value)
662{
663 /* TO FIX */
664}
665
67867308
FB		 666void cpu_loop(CPUPPCState *env)
667{
67867308 668 target_siginfo_t info;
61190b14
FB		 669 int trapnr;
670 uint32_t ret;
67867308
FB		 671
672 for(;;) {
673 trapnr = cpu_ppc_exec(env);
61190b14
FB		 674 if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
675 trapnr != EXCP_TRACE) {
676 if (loglevel > 0) {
7fe48483 677 cpu_dump_state(env, logfile, fprintf, 0);
61190b14
FB		 678 }
679 }
67867308
FB		 680 switch(trapnr) {
681 case EXCP_NONE:
67867308 682 break;
61190b14
FB		 683 case EXCP_SYSCALL_USER:
684 /* system call */
685 /* WARNING:
686 * PPC ABI uses overflow flag in cr0 to signal an error
687 * in syscalls.
688 */
67867308 689#if 0
61190b14
FB		 690 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
691 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
67867308 692#endif
61190b14
FB		 693 env->crf[0] &= ~0x1;
694 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
695 env->gpr[5], env->gpr[6], env->gpr[7],
696 env->gpr[8]);
697 if (ret > (uint32_t)(-515)) {
698 env->crf[0] |= 0x1;
699 ret = -ret;
700 }
701 env->gpr[3] = ret;
702#if 0
703 printf("syscall returned 0x%08x (%d)\n", ret, ret);
704#endif
705 break;
706 case EXCP_RESET:
707 /* Should not happen ! */
708 fprintf(stderr, "RESET asked... Stop emulation\n");
709 if (loglevel)
710 fprintf(logfile, "RESET asked... Stop emulation\n");
67867308 711 abort();
61190b14
FB		 712 case EXCP_MACHINE_CHECK:
713 fprintf(stderr, "Machine check exeption... Stop emulation\n");
714 if (loglevel)
715 fprintf(logfile, "RESET asked... Stop emulation\n");
716 info.si_signo = TARGET_SIGBUS;
67867308 717 info.si_errno = 0;
61190b14
FB		 718 info.si_code = TARGET_BUS_OBJERR;
719 info._sifields._sigfault._addr = env->nip - 4;
720 queue_signal(info.si_signo, &info);
721 case EXCP_DSI:
3fc6c082
FB		 722 fprintf(stderr, "Invalid data memory access: 0x%08x\n",
723 env->spr[SPR_DAR]);
61190b14
FB		 724 if (loglevel) {
725 fprintf(logfile, "Invalid data memory access: 0x%08x\n",
3fc6c082 726 env->spr[SPR_DAR]);
61190b14 727 }
2be0071f
FB		 728 switch (env->error_code & 0xFF000000) {
729 case 0x40000000:
61190b14
FB		 730 info.si_signo = TARGET_SIGSEGV;
731 info.si_errno = 0;
732 info.si_code = TARGET_SEGV_MAPERR;
733 break;
2be0071f 734 case 0x04000000:
61190b14
FB		 735 info.si_signo = TARGET_SIGILL;
736 info.si_errno = 0;
737 info.si_code = TARGET_ILL_ILLADR;
738 break;
2be0071f 739 case 0x08000000:
61190b14
FB		 740 info.si_signo = TARGET_SIGSEGV;
741 info.si_errno = 0;
742 info.si_code = TARGET_SEGV_ACCERR;
743 break;
61190b14
FB		 744 default:
745 /* Let's send a regular segfault... */
746 fprintf(stderr, "Invalid segfault errno (%02x)\n",
747 env->error_code);
748 if (loglevel) {
749 fprintf(logfile, "Invalid segfault errno (%02x)\n",
750 env->error_code);
751 }
752 info.si_signo = TARGET_SIGSEGV;
753 info.si_errno = 0;
754 info.si_code = TARGET_SEGV_MAPERR;
755 break;
756 }
67867308
FB		 757 info._sifields._sigfault._addr = env->nip;
758 queue_signal(info.si_signo, &info);
759 break;
61190b14 760 case EXCP_ISI:
67867308 761 fprintf(stderr, "Invalid instruction fetch\n");
61190b14
FB		 762 if (loglevel)
763 fprintf(logfile, "Invalid instruction fetch\n");
2be0071f
FB		 764 switch (env->error_code & 0xFF000000) {
765 case 0x40000000:
61190b14 766 info.si_signo = TARGET_SIGSEGV;
67867308 767 info.si_errno = 0;
61190b14
FB		 768 info.si_code = TARGET_SEGV_MAPERR;
769 break;
2be0071f
FB		 770 case 0x10000000:
771 case 0x08000000:
61190b14
FB		 772 info.si_signo = TARGET_SIGSEGV;
773 info.si_errno = 0;
774 info.si_code = TARGET_SEGV_ACCERR;
775 break;
776 default:
777 /* Let's send a regular segfault... */
778 fprintf(stderr, "Invalid segfault errno (%02x)\n",
779 env->error_code);
780 if (loglevel) {
781 fprintf(logfile, "Invalid segfault errno (%02x)\n",
782 env->error_code);
783 }
784 info.si_signo = TARGET_SIGSEGV;
785 info.si_errno = 0;
786 info.si_code = TARGET_SEGV_MAPERR;
787 break;
788 }
789 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 790 queue_signal(info.si_signo, &info);
791 break;
61190b14
FB		 792 case EXCP_EXTERNAL:
793 /* Should not happen ! */
794 fprintf(stderr, "External interruption... Stop emulation\n");
795 if (loglevel)
796 fprintf(logfile, "External interruption... Stop emulation\n");
67867308 797 abort();
61190b14
FB		 798 case EXCP_ALIGN:
799 fprintf(stderr, "Invalid unaligned memory access\n");
800 if (loglevel)
801 fprintf(logfile, "Invalid unaligned memory access\n");
802 info.si_signo = TARGET_SIGBUS;
67867308 803 info.si_errno = 0;
61190b14
FB		 804 info.si_code = TARGET_BUS_ADRALN;
805 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 806 queue_signal(info.si_signo, &info);
807 break;
61190b14
FB		 808 case EXCP_PROGRAM:
809 switch (env->error_code & ~0xF) {
810 case EXCP_FP:
811 fprintf(stderr, "Program exception\n");
812 if (loglevel)
813 fprintf(logfile, "Program exception\n");
814 /* Set FX */
815 env->fpscr[7] |= 0x8;
816 /* Finally, update FEX */
817 if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
818 ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
819 env->fpscr[7] |= 0x4;
820 info.si_signo = TARGET_SIGFPE;
821 info.si_errno = 0;
822 switch (env->error_code & 0xF) {
823 case EXCP_FP_OX:
824 info.si_code = TARGET_FPE_FLTOVF;
825 break;
826 case EXCP_FP_UX:
827 info.si_code = TARGET_FPE_FLTUND;
828 break;
829 case EXCP_FP_ZX:
830 case EXCP_FP_VXZDZ:
831 info.si_code = TARGET_FPE_FLTDIV;
832 break;
833 case EXCP_FP_XX:
834 info.si_code = TARGET_FPE_FLTRES;
835 break;
836 case EXCP_FP_VXSOFT:
837 info.si_code = TARGET_FPE_FLTINV;
838 break;
839 case EXCP_FP_VXNAN:
840 case EXCP_FP_VXISI:
841 case EXCP_FP_VXIDI:
842 case EXCP_FP_VXIMZ:
843 case EXCP_FP_VXVC:
844 case EXCP_FP_VXSQRT:
845 case EXCP_FP_VXCVI:
846 info.si_code = TARGET_FPE_FLTSUB;
847 break;
848 default:
849 fprintf(stderr, "Unknown floating point exception "
850 "(%02x)\n", env->error_code);
851 if (loglevel) {
852 fprintf(logfile, "Unknown floating point exception "
853 "(%02x)\n", env->error_code & 0xF);
854 }
855 }
856 break;
67867308 857 case EXCP_INVAL:
61190b14
FB		 858 fprintf(stderr, "Invalid instruction\n");
859 if (loglevel)
860 fprintf(logfile, "Invalid instruction\n");
861 info.si_signo = TARGET_SIGILL;
862 info.si_errno = 0;
863 switch (env->error_code & 0xF) {
864 case EXCP_INVAL_INVAL:
865 info.si_code = TARGET_ILL_ILLOPC;
866 break;
867 case EXCP_INVAL_LSWX:
67867308 868 info.si_code = TARGET_ILL_ILLOPN;
61190b14
FB		 869 break;
870 case EXCP_INVAL_SPR:
871 info.si_code = TARGET_ILL_PRVREG;
872 break;
873 case EXCP_INVAL_FP:
874 info.si_code = TARGET_ILL_COPROC;
875 break;
876 default:
877 fprintf(stderr, "Unknown invalid operation (%02x)\n",
878 env->error_code & 0xF);
879 if (loglevel) {
880 fprintf(logfile, "Unknown invalid operation (%02x)\n",
881 env->error_code & 0xF);
882 }
883 info.si_code = TARGET_ILL_ILLADR;
884 break;
885 }
886 break;
887 case EXCP_PRIV:
888 fprintf(stderr, "Privilege violation\n");
889 if (loglevel)
890 fprintf(logfile, "Privilege violation\n");
891 info.si_signo = TARGET_SIGILL;
892 info.si_errno = 0;
893 switch (env->error_code & 0xF) {
894 case EXCP_PRIV_OPC:
895 info.si_code = TARGET_ILL_PRVOPC;
896 break;
897 case EXCP_PRIV_REG:
898 info.si_code = TARGET_ILL_PRVREG;
899 break;
900 default:
901 fprintf(stderr, "Unknown privilege violation (%02x)\n",
902 env->error_code & 0xF);
903 info.si_code = TARGET_ILL_PRVOPC;
904 break;
905 }
906 break;
907 case EXCP_TRAP:
908 fprintf(stderr, "Tried to call a TRAP\n");
909 if (loglevel)
910 fprintf(logfile, "Tried to call a TRAP\n");
911 abort();
912 default:
913 /* Should not happen ! */
914 fprintf(stderr, "Unknown program exception (%02x)\n",
915 env->error_code);
916 if (loglevel) {
917 fprintf(logfile, "Unknwon program exception (%02x)\n",
918 env->error_code);
919 }
920 abort();
921 }
922 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 923 queue_signal(info.si_signo, &info);
924 break;
61190b14
FB		 925 case EXCP_NO_FP:
926 fprintf(stderr, "No floating point allowed\n");
927 if (loglevel)
928 fprintf(logfile, "No floating point allowed\n");
929 info.si_signo = TARGET_SIGILL;
67867308 930 info.si_errno = 0;
61190b14
FB		 931 info.si_code = TARGET_ILL_COPROC;
932 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 933 queue_signal(info.si_signo, &info);
934 break;
61190b14
FB		 935 case EXCP_DECR:
936 /* Should not happen ! */
937 fprintf(stderr, "Decrementer exception\n");
938 if (loglevel)
939 fprintf(logfile, "Decrementer exception\n");
940 abort();
61190b14
FB		 941 case EXCP_TRACE:
942 /* Do nothing: we use this to trace execution */
67867308 943 break;
61190b14
FB		 944 case EXCP_FP_ASSIST:
945 /* Should not happen ! */
946 fprintf(stderr, "Floating point assist exception\n");
947 if (loglevel)
948 fprintf(logfile, "Floating point assist exception\n");
949 abort();
950 case EXCP_MTMSR:
951 /* We reloaded the msr, just go on */
9fddaa0c 952 if (msr_pr == 0) {
61190b14
FB		 953 fprintf(stderr, "Tried to go into supervisor mode !\n");
954 if (loglevel)
955 fprintf(logfile, "Tried to go into supervisor mode !\n");
956 abort();
67867308 957 }
61190b14
FB		 958 break;
959 case EXCP_BRANCH:
960 /* We stopped because of a jump... */
961 break;
61190b14
FB		 962 case EXCP_INTERRUPT:
963 /* Don't know why this should ever happen... */
964 break;
1fddef4b
FB		 965 case EXCP_DEBUG:
966 {
967 int sig;
968
969 sig = gdb_handlesig (env, TARGET_SIGTRAP);
970 if (sig)
971 {
972 info.si_signo = sig;
973 info.si_errno = 0;
974 info.si_code = TARGET_TRAP_BRKPT;
975 queue_signal(info.si_signo, &info);
976 }
977 }
978 break;
67867308 979 default:
67867308
FB		 980 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
981 trapnr);
61190b14
FB		 982 if (loglevel) {
983 fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
984 "0x%02x - aborting\n", trapnr, env->error_code);
985 }
67867308
FB		 986 abort();
987 }
988 process_pending_signals(env);
989 }
990}
991#endif
992
048f6b4d
FB		 993#ifdef TARGET_MIPS
994
995#define MIPS_SYS(name, args) args,
996
997static const uint8_t mips_syscall_args[] = {
998 MIPS_SYS(sys_syscall , 0) /* 4000 */
999 MIPS_SYS(sys_exit , 1)
1000 MIPS_SYS(sys_fork , 0)
1001 MIPS_SYS(sys_read , 3)
1002 MIPS_SYS(sys_write , 3)
1003 MIPS_SYS(sys_open , 3) /* 4005 */
1004 MIPS_SYS(sys_close , 1)
1005 MIPS_SYS(sys_waitpid , 3)
1006 MIPS_SYS(sys_creat , 2)
1007 MIPS_SYS(sys_link , 2)
1008 MIPS_SYS(sys_unlink , 1) /* 4010 */
1009 MIPS_SYS(sys_execve , 0)
1010 MIPS_SYS(sys_chdir , 1)
1011 MIPS_SYS(sys_time , 1)
1012 MIPS_SYS(sys_mknod , 3)
1013 MIPS_SYS(sys_chmod , 2) /* 4015 */
1014 MIPS_SYS(sys_lchown , 3)
1015 MIPS_SYS(sys_ni_syscall , 0)
1016 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1017 MIPS_SYS(sys_lseek , 3)
1018 MIPS_SYS(sys_getpid , 0) /* 4020 */
1019 MIPS_SYS(sys_mount , 5)
1020 MIPS_SYS(sys_oldumount , 1)
1021 MIPS_SYS(sys_setuid , 1)
1022 MIPS_SYS(sys_getuid , 0)
1023 MIPS_SYS(sys_stime , 1) /* 4025 */
1024 MIPS_SYS(sys_ptrace , 4)
1025 MIPS_SYS(sys_alarm , 1)
1026 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1027 MIPS_SYS(sys_pause , 0)
1028 MIPS_SYS(sys_utime , 2) /* 4030 */
1029 MIPS_SYS(sys_ni_syscall , 0)
1030 MIPS_SYS(sys_ni_syscall , 0)
1031 MIPS_SYS(sys_access , 2)
1032 MIPS_SYS(sys_nice , 1)
1033 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1034 MIPS_SYS(sys_sync , 0)
1035 MIPS_SYS(sys_kill , 2)
1036 MIPS_SYS(sys_rename , 2)
1037 MIPS_SYS(sys_mkdir , 2)
1038 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1039 MIPS_SYS(sys_dup , 1)
1040 MIPS_SYS(sys_pipe , 0)
1041 MIPS_SYS(sys_times , 1)
1042 MIPS_SYS(sys_ni_syscall , 0)
1043 MIPS_SYS(sys_brk , 1) /* 4045 */
1044 MIPS_SYS(sys_setgid , 1)
1045 MIPS_SYS(sys_getgid , 0)
1046 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1047 MIPS_SYS(sys_geteuid , 0)
1048 MIPS_SYS(sys_getegid , 0) /* 4050 */
1049 MIPS_SYS(sys_acct , 0)
1050 MIPS_SYS(sys_umount , 2)
1051 MIPS_SYS(sys_ni_syscall , 0)
1052 MIPS_SYS(sys_ioctl , 3)
1053 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1054 MIPS_SYS(sys_ni_syscall , 2)
1055 MIPS_SYS(sys_setpgid , 2)
1056 MIPS_SYS(sys_ni_syscall , 0)
1057 MIPS_SYS(sys_olduname , 1)
1058 MIPS_SYS(sys_umask , 1) /* 4060 */
1059 MIPS_SYS(sys_chroot , 1)
1060 MIPS_SYS(sys_ustat , 2)
1061 MIPS_SYS(sys_dup2 , 2)
1062 MIPS_SYS(sys_getppid , 0)
1063 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1064 MIPS_SYS(sys_setsid , 0)
1065 MIPS_SYS(sys_sigaction , 3)
1066 MIPS_SYS(sys_sgetmask , 0)
1067 MIPS_SYS(sys_ssetmask , 1)
1068 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1069 MIPS_SYS(sys_setregid , 2)
1070 MIPS_SYS(sys_sigsuspend , 0)
1071 MIPS_SYS(sys_sigpending , 1)
1072 MIPS_SYS(sys_sethostname , 2)
1073 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1074 MIPS_SYS(sys_getrlimit , 2)
1075 MIPS_SYS(sys_getrusage , 2)
1076 MIPS_SYS(sys_gettimeofday, 2)
1077 MIPS_SYS(sys_settimeofday, 2)
1078 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1079 MIPS_SYS(sys_setgroups , 2)
1080 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1081 MIPS_SYS(sys_symlink , 2)
1082 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1083 MIPS_SYS(sys_readlink , 3) /* 4085 */
1084 MIPS_SYS(sys_uselib , 1)
1085 MIPS_SYS(sys_swapon , 2)
1086 MIPS_SYS(sys_reboot , 3)
1087 MIPS_SYS(old_readdir , 3)
1088 MIPS_SYS(old_mmap , 6) /* 4090 */
1089 MIPS_SYS(sys_munmap , 2)
1090 MIPS_SYS(sys_truncate , 2)
1091 MIPS_SYS(sys_ftruncate , 2)
1092 MIPS_SYS(sys_fchmod , 2)
1093 MIPS_SYS(sys_fchown , 3) /* 4095 */
1094 MIPS_SYS(sys_getpriority , 2)
1095 MIPS_SYS(sys_setpriority , 3)
1096 MIPS_SYS(sys_ni_syscall , 0)
1097 MIPS_SYS(sys_statfs , 2)
1098 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1099 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1100 MIPS_SYS(sys_socketcall , 2)
1101 MIPS_SYS(sys_syslog , 3)
1102 MIPS_SYS(sys_setitimer , 3)
1103 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1104 MIPS_SYS(sys_newstat , 2)
1105 MIPS_SYS(sys_newlstat , 2)
1106 MIPS_SYS(sys_newfstat , 2)
1107 MIPS_SYS(sys_uname , 1)
1108 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1109 MIPS_SYS(sys_vhangup , 0)
1110 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1111 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1112 MIPS_SYS(sys_wait4 , 4)
1113 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1114 MIPS_SYS(sys_sysinfo , 1)
1115 MIPS_SYS(sys_ipc , 6)
1116 MIPS_SYS(sys_fsync , 1)
1117 MIPS_SYS(sys_sigreturn , 0)
1118 MIPS_SYS(sys_clone , 0) /* 4120 */
1119 MIPS_SYS(sys_setdomainname, 2)
1120 MIPS_SYS(sys_newuname , 1)
1121 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1122 MIPS_SYS(sys_adjtimex , 1)
1123 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1124 MIPS_SYS(sys_sigprocmask , 3)
1125 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1126 MIPS_SYS(sys_init_module , 5)
1127 MIPS_SYS(sys_delete_module, 1)
1128 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1129 MIPS_SYS(sys_quotactl , 0)
1130 MIPS_SYS(sys_getpgid , 1)
1131 MIPS_SYS(sys_fchdir , 1)
1132 MIPS_SYS(sys_bdflush , 2)
1133 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1134 MIPS_SYS(sys_personality , 1)
1135 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1136 MIPS_SYS(sys_setfsuid , 1)
1137 MIPS_SYS(sys_setfsgid , 1)
1138 MIPS_SYS(sys_llseek , 5) /* 4140 */
1139 MIPS_SYS(sys_getdents , 3)
1140 MIPS_SYS(sys_select , 5)
1141 MIPS_SYS(sys_flock , 2)
1142 MIPS_SYS(sys_msync , 3)
1143 MIPS_SYS(sys_readv , 3) /* 4145 */
1144 MIPS_SYS(sys_writev , 3)
1145 MIPS_SYS(sys_cacheflush , 3)
1146 MIPS_SYS(sys_cachectl , 3)
1147 MIPS_SYS(sys_sysmips , 4)
1148 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1149 MIPS_SYS(sys_getsid , 1)
1150 MIPS_SYS(sys_fdatasync , 0)
1151 MIPS_SYS(sys_sysctl , 1)
1152 MIPS_SYS(sys_mlock , 2)
1153 MIPS_SYS(sys_munlock , 2) /* 4155 */
1154 MIPS_SYS(sys_mlockall , 1)
1155 MIPS_SYS(sys_munlockall , 0)
1156 MIPS_SYS(sys_sched_setparam, 2)
1157 MIPS_SYS(sys_sched_getparam, 2)
1158 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1159 MIPS_SYS(sys_sched_getscheduler, 1)
1160 MIPS_SYS(sys_sched_yield , 0)
1161 MIPS_SYS(sys_sched_get_priority_max, 1)
1162 MIPS_SYS(sys_sched_get_priority_min, 1)
1163 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1164 MIPS_SYS(sys_nanosleep, 2)
1165 MIPS_SYS(sys_mremap , 4)
1166 MIPS_SYS(sys_accept , 3)
1167 MIPS_SYS(sys_bind , 3)
1168 MIPS_SYS(sys_connect , 3) /* 4170 */
1169 MIPS_SYS(sys_getpeername , 3)
1170 MIPS_SYS(sys_getsockname , 3)
1171 MIPS_SYS(sys_getsockopt , 5)
1172 MIPS_SYS(sys_listen , 2)
1173 MIPS_SYS(sys_recv , 4) /* 4175 */
1174 MIPS_SYS(sys_recvfrom , 6)
1175 MIPS_SYS(sys_recvmsg , 3)
1176 MIPS_SYS(sys_send , 4)
1177 MIPS_SYS(sys_sendmsg , 3)
1178 MIPS_SYS(sys_sendto , 6) /* 4180 */
1179 MIPS_SYS(sys_setsockopt , 5)
1180 MIPS_SYS(sys_shutdown , 2)
1181 MIPS_SYS(sys_socket , 3)
1182 MIPS_SYS(sys_socketpair , 4)
1183 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1184 MIPS_SYS(sys_getresuid , 3)
1185 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1186 MIPS_SYS(sys_poll , 3)
1187 MIPS_SYS(sys_nfsservctl , 3)
1188 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1189 MIPS_SYS(sys_getresgid , 3)
1190 MIPS_SYS(sys_prctl , 5)
1191 MIPS_SYS(sys_rt_sigreturn, 0)
1192 MIPS_SYS(sys_rt_sigaction, 4)
1193 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1194 MIPS_SYS(sys_rt_sigpending, 2)
1195 MIPS_SYS(sys_rt_sigtimedwait, 4)
1196 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1197 MIPS_SYS(sys_rt_sigsuspend, 0)
1198 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1199 MIPS_SYS(sys_pwrite64 , 6)
1200 MIPS_SYS(sys_chown , 3)
1201 MIPS_SYS(sys_getcwd , 2)
1202 MIPS_SYS(sys_capget , 2)
1203 MIPS_SYS(sys_capset , 2) /* 4205 */
1204 MIPS_SYS(sys_sigaltstack , 0)
1205 MIPS_SYS(sys_sendfile , 4)
1206 MIPS_SYS(sys_ni_syscall , 0)
1207 MIPS_SYS(sys_ni_syscall , 0)
1208 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1209 MIPS_SYS(sys_truncate64 , 4)
1210 MIPS_SYS(sys_ftruncate64 , 4)
1211 MIPS_SYS(sys_stat64 , 2)
1212 MIPS_SYS(sys_lstat64 , 2)
1213 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1214 MIPS_SYS(sys_pivot_root , 2)
1215 MIPS_SYS(sys_mincore , 3)
1216 MIPS_SYS(sys_madvise , 3)
1217 MIPS_SYS(sys_getdents64 , 3)
1218 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1219 MIPS_SYS(sys_ni_syscall , 0)
1220 MIPS_SYS(sys_gettid , 0)
1221 MIPS_SYS(sys_readahead , 5)
1222 MIPS_SYS(sys_setxattr , 5)
1223 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1224 MIPS_SYS(sys_fsetxattr , 5)
1225 MIPS_SYS(sys_getxattr , 4)
1226 MIPS_SYS(sys_lgetxattr , 4)
1227 MIPS_SYS(sys_fgetxattr , 4)
1228 MIPS_SYS(sys_listxattr , 3) /* 4230 */
1229 MIPS_SYS(sys_llistxattr , 3)
1230 MIPS_SYS(sys_flistxattr , 3)
1231 MIPS_SYS(sys_removexattr , 2)
1232 MIPS_SYS(sys_lremovexattr, 2)
1233 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1234 MIPS_SYS(sys_tkill , 2)
1235 MIPS_SYS(sys_sendfile64 , 5)
1236 MIPS_SYS(sys_futex , 2)
1237 MIPS_SYS(sys_sched_setaffinity, 3)
1238 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1239 MIPS_SYS(sys_io_setup , 2)
1240 MIPS_SYS(sys_io_destroy , 1)
1241 MIPS_SYS(sys_io_getevents, 5)
1242 MIPS_SYS(sys_io_submit , 3)
1243 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1244 MIPS_SYS(sys_exit_group , 1)
1245 MIPS_SYS(sys_lookup_dcookie, 3)
1246 MIPS_SYS(sys_epoll_create, 1)
1247 MIPS_SYS(sys_epoll_ctl , 4)
1248 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1249 MIPS_SYS(sys_remap_file_pages, 5)
1250 MIPS_SYS(sys_set_tid_address, 1)
1251 MIPS_SYS(sys_restart_syscall, 0)
1252 MIPS_SYS(sys_fadvise64_64, 7)
1253 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1254 MIPS_SYS(sys_fstatfs64 , 2)
1255 MIPS_SYS(sys_timer_create, 3)
1256 MIPS_SYS(sys_timer_settime, 4)
1257 MIPS_SYS(sys_timer_gettime, 2)
1258 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1259 MIPS_SYS(sys_timer_delete, 1)
1260 MIPS_SYS(sys_clock_settime, 2)
1261 MIPS_SYS(sys_clock_gettime, 2)
1262 MIPS_SYS(sys_clock_getres, 2)
1263 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1264 MIPS_SYS(sys_tgkill , 3)
1265 MIPS_SYS(sys_utimes , 2)
1266 MIPS_SYS(sys_mbind , 4)
1267 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1268 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1269 MIPS_SYS(sys_mq_open , 4)
1270 MIPS_SYS(sys_mq_unlink , 1)
1271 MIPS_SYS(sys_mq_timedsend, 5)
1272 MIPS_SYS(sys_mq_timedreceive, 5)
1273 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1274 MIPS_SYS(sys_mq_getsetattr, 3)
1275 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1276 MIPS_SYS(sys_waitid , 4)
1277 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1278 MIPS_SYS(sys_add_key , 5)
1279 MIPS_SYS(sys_request_key , 4)
1280 MIPS_SYS(sys_keyctl , 5)
1281};
1282
1283#undef MIPS_SYS
1284
1285void cpu_loop(CPUMIPSState *env)
1286{
1287 target_siginfo_t info;
1288 int trapnr, ret, nb_args;
1289 unsigned int syscall_num;
1290 target_ulong arg5, arg6, sp_reg;
1291
1292 for(;;) {
1293 trapnr = cpu_mips_exec(env);
1294 switch(trapnr) {
1295 case EXCP_SYSCALL:
1296 {
1297 syscall_num = env->gpr[2] - 4000;
1298 if (syscall_num >= sizeof(mips_syscall_args)) {
1299 ret = -ENOSYS;
1300 } else {
1301 nb_args = mips_syscall_args[syscall_num];
1302 if (nb_args >= 5) {
1303 sp_reg = env->gpr[29];
1304 /* these arguments are taken from the stack */
1305 if (get_user(arg5, (target_ulong *)(sp_reg + 16))) {
1306 ret = -EFAULT;
1307 goto fail;
1308 }
1309 if (nb_args >= 6) {
1310 if (get_user(arg6, (target_ulong *)(sp_reg + 20))) {
1311 ret = -EFAULT;
1312 goto fail;
1313 }
1314 } else {
1315 arg6 = 0;
1316 }
1317 } else {
1318 arg5 = 0;
1319 arg6 = 0;
1320 }
1321 ret = do_syscall(env,
1322 env->gpr[2],
1323 env->gpr[4],
1324 env->gpr[5],
1325 env->gpr[6],
1326 env->gpr[7],
1327 arg5,
1328 arg6);
1329 }
1330 fail:
1331 env->PC += 4;
1332 if ((unsigned int)ret >= (unsigned int)(-1133)) {
1333 env->gpr[7] = 1; /* error flag */
1334 ret = -ret;
1335 env->gpr[0] = ret;
1336 env->gpr[2] = ret;
1337 } else {
1338 env->gpr[7] = 0; /* error flag */
1339 env->gpr[2] = ret;
1340 }
1341 }
1342 break;
6900e84b 1343 case EXCP_CpU:
048f6b4d
FB		 1344 case EXCP_RI:
1345 {
1346 uint32_t insn, op;
1347
1348 if (get_user(insn, (uint32_t *)env->PC) < 0)
1349 goto sigill;
1350 op = insn >> 26;
1351 // printf("insn=%08x op=%02x\n", insn, op);
1352 /* XXX: totally dummy FP ops just to be able to launch
1353 a few executables */
1354 switch(op) {
1355 case 0x31: /* LWC1 */
1356 env->PC += 4;
1357 break;
1358 case 0x39: /* SWC1 */
1359 env->PC += 4;
1360 break;
1361 case 0x11:
1362 switch((insn >> 21) & 0x1f) {
1363 case 0x02: /* CFC1 */
1364 env->PC += 4;
1365 break;
1366 default:
1367 goto sigill;
1368 }
1369 break;
1370 default:
1371 sigill:
1372 info.si_signo = TARGET_SIGILL;
1373 info.si_errno = 0;
1374 info.si_code = 0;
1375 queue_signal(info.si_signo, &info);
1376 break;
1377 }
1378 }
1379 break;
1380 default:
1381 // error:
1382 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1383 trapnr);
1384 cpu_dump_state(env, stderr, fprintf, 0);
1385 abort();
1386 }
1387 process_pending_signals(env);
1388 }
1389}
1390#endif
1391
31e31b8a
FB		 1392void usage(void)
1393{
f5a8510c 1394 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2005 Fabrice Bellard\n"
1fddef4b 1395 "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] program [arguments...]\n"
b346ff46 1396 "Linux CPU emulator (compiled for %s emulation)\n"
d691f669 1397 "\n"
54936004 1398 "-h print this help\n"
74c33bed 1399 "-g port wait gdb connection to port\n"
b346ff46
FB		 1400 "-L path set the elf interpreter prefix (default=%s)\n"
1401 "-s size set the stack size in bytes (default=%ld)\n"
54936004
FB		 1402 "\n"
1403 "debug options:\n"
c6981055
FB		 1404#ifdef USE_CODE_COPY
1405 "-no-code-copy disable code copy acceleration\n"
1406#endif
6f1f31c0 1407 "-d options activate log (logfile=%s)\n"
54936004 1408 "-p pagesize set the host page size to 'pagesize'\n",
b346ff46 1409 TARGET_ARCH,
d691f669 1410 interp_prefix,
54936004
FB		 1411 x86_stack_size,
1412 DEBUG_LOGFILE);
74cd30b8 1413 _exit(1);
31e31b8a
FB		 1414}
1415
9de5e440 1416/* XXX: currently only used for async signals (see signal.c) */
b346ff46 1417CPUState *global_env;
59faf6d6 1418
851e67a1
FB		 1419/* used to free thread contexts */
1420TaskState *first_task_state;
9de5e440 1421
31e31b8a
FB		 1422int main(int argc, char **argv)
1423{
1424 const char *filename;
01ffc75b 1425 struct target_pt_regs regs1, *regs = &regs1;
31e31b8a 1426 struct image_info info1, *info = &info1;
851e67a1 1427 TaskState ts1, *ts = &ts1;
b346ff46 1428 CPUState *env;
586314f2 1429 int optind;
d691f669 1430 const char *r;
74c33bed 1431 int gdbstub_port = 0;
d691f669 1432
31e31b8a
FB		 1433 if (argc <= 1)
1434 usage();
f801f97e 1435
cc38b844
FB		 1436 /* init debug */
1437 cpu_set_log_filename(DEBUG_LOGFILE);
1438
586314f2 1439 optind = 1;
d691f669
FB		 1440 for(;;) {
1441 if (optind >= argc)
1442 break;
1443 r = argv[optind];
1444 if (r[0] != '-')
1445 break;
586314f2 1446 optind++;
d691f669
FB		 1447 r++;
1448 if (!strcmp(r, "-")) {
1449 break;
1450 } else if (!strcmp(r, "d")) {
e19e89a5
FB		 1451 int mask;
1452 CPULogItem *item;
6f1f31c0
FB		 1453
1454 if (optind >= argc)
1455 break;
e19e89a5 1456
6f1f31c0
FB		 1457 r = argv[optind++];
1458 mask = cpu_str_to_log_mask(r);
e19e89a5
FB		 1459 if (!mask) {
1460 printf("Log items (comma separated):\n");
1461 for(item = cpu_log_items; item->mask != 0; item++) {
1462 printf("%-10s %s\n", item->name, item->help);
1463 }
1464 exit(1);
1465 }
1466 cpu_set_log(mask);
d691f669
FB		 1467 } else if (!strcmp(r, "s")) {
1468 r = argv[optind++];
1469 x86_stack_size = strtol(r, (char **)&r, 0);
1470 if (x86_stack_size <= 0)
1471 usage();
1472 if (*r == 'M')
1473 x86_stack_size *= 1024 * 1024;
1474 else if (*r == 'k' || *r == 'K')
1475 x86_stack_size *= 1024;
1476 } else if (!strcmp(r, "L")) {
1477 interp_prefix = argv[optind++];
54936004 1478 } else if (!strcmp(r, "p")) {
83fb7adf
FB		 1479 qemu_host_page_size = atoi(argv[optind++]);
1480 if (qemu_host_page_size == 0 ||
1481 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
54936004
FB		 1482 fprintf(stderr, "page size must be a power of two\n");
1483 exit(1);
1484 }
1fddef4b 1485 } else if (!strcmp(r, "g")) {
74c33bed 1486 gdbstub_port = atoi(argv[optind++]);
c6981055
FB		 1487 } else
1488#ifdef USE_CODE_COPY
1489 if (!strcmp(r, "no-code-copy")) {
1490 code_copy_enabled = 0;
1491 } else
1492#endif
1493 {
d691f669
FB		 1494 usage();
1495 }
586314f2 1496 }
d691f669
FB		 1497 if (optind >= argc)
1498 usage();
586314f2
FB		 1499 filename = argv[optind];
1500
31e31b8a 1501 /* Zero out regs */
01ffc75b 1502 memset(regs, 0, sizeof(struct target_pt_regs));
31e31b8a
FB		 1503
1504 /* Zero out image_info */
1505 memset(info, 0, sizeof(struct image_info));
1506
74cd30b8
FB		 1507 /* Scan interp_prefix dir for replacement files. */
1508 init_paths(interp_prefix);
1509
83fb7adf
FB		 1510 /* NOTE: we need to init the CPU at this stage to get
1511 qemu_host_page_size */
b346ff46 1512 env = cpu_init();
15338fd7 1513 global_env = env;
92ccca6a 1514
74cd30b8 1515 if (elf_exec(filename, argv+optind, environ, regs, info) != 0) {
31e31b8a 1516 printf("Error loading %s\n", filename);
74cd30b8 1517 _exit(1);
31e31b8a
FB		 1518 }
1519
4b74fe1f 1520 if (loglevel) {
54936004
FB		 1521 page_dump(logfile);
1522
4b74fe1f
FB		 1523 fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk);
1524 fprintf(logfile, "end_code 0x%08lx\n" , info->end_code);
1525 fprintf(logfile, "start_code 0x%08lx\n" , info->start_code);
1526 fprintf(logfile, "end_data 0x%08lx\n" , info->end_data);
1527 fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack);
1528 fprintf(logfile, "brk 0x%08lx\n" , info->brk);
b346ff46 1529 fprintf(logfile, "entry 0x%08lx\n" , info->entry);
4b74fe1f 1530 }
31e31b8a
FB		 1531
1532 target_set_brk((char *)info->brk);
1533 syscall_init();
66fb9763 1534 signal_init();
31e31b8a 1535
851e67a1
FB		 1536 /* build Task State */
1537 memset(ts, 0, sizeof(TaskState));
1538 env->opaque = ts;
1539 ts->used = 1;
59faf6d6 1540 env->user_mode_only = 1;
851e67a1 1541
b346ff46 1542#if defined(TARGET_I386)
2e255c6b
FB		 1543 cpu_x86_set_cpl(env, 3);
1544
3802ce26 1545 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
1bde465e
FB		 1546 env->hflags |= HF_PE_MASK;
1547 if (env->cpuid_features & CPUID_SSE) {
1548 env->cr[4] |= CR4_OSFXSR_MASK;
1549 env->hflags |= HF_OSFXSR_MASK;
1550 }
1551
415e561f
FB		 1552 /* flags setup : we activate the IRQs by default as in user mode */
1553 env->eflags |= IF_MASK;
1554
6dbad63e 1555 /* linux register setup */
0ecfa993
FB		 1556 env->regs[R_EAX] = regs->eax;
1557 env->regs[R_EBX] = regs->ebx;
1558 env->regs[R_ECX] = regs->ecx;
1559 env->regs[R_EDX] = regs->edx;
1560 env->regs[R_ESI] = regs->esi;
1561 env->regs[R_EDI] = regs->edi;
1562 env->regs[R_EBP] = regs->ebp;
1563 env->regs[R_ESP] = regs->esp;
dab2ed99 1564 env->eip = regs->eip;
31e31b8a 1565
f4beb510 1566 /* linux interrupt setup */
80a9d035 1567 env->idt.base = (long)idt_table;
f4beb510
FB		 1568 env->idt.limit = sizeof(idt_table) - 1;
1569 set_idt(0, 0);
1570 set_idt(1, 0);
1571 set_idt(2, 0);
1572 set_idt(3, 3);
1573 set_idt(4, 3);
1574 set_idt(5, 3);
1575 set_idt(6, 0);
1576 set_idt(7, 0);
1577 set_idt(8, 0);
1578 set_idt(9, 0);
1579 set_idt(10, 0);
1580 set_idt(11, 0);
1581 set_idt(12, 0);
1582 set_idt(13, 0);
1583 set_idt(14, 0);
1584 set_idt(15, 0);
1585 set_idt(16, 0);
1586 set_idt(17, 0);
1587 set_idt(18, 0);
1588 set_idt(19, 0);
1589 set_idt(0x80, 3);
1590
6dbad63e 1591 /* linux segment setup */
80a9d035 1592 env->gdt.base = (long)gdt_table;
6dbad63e 1593 env->gdt.limit = sizeof(gdt_table) - 1;
f4beb510
FB		 1594 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
1595 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1596 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
1597 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
1598 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1599 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
6dbad63e
FB		 1600 cpu_x86_load_seg(env, R_CS, __USER_CS);
1601 cpu_x86_load_seg(env, R_DS, __USER_DS);
1602 cpu_x86_load_seg(env, R_ES, __USER_DS);
1603 cpu_x86_load_seg(env, R_SS, __USER_DS);
1604 cpu_x86_load_seg(env, R_FS, __USER_DS);
1605 cpu_x86_load_seg(env, R_GS, __USER_DS);
92ccca6a 1606
b346ff46
FB		 1607#elif defined(TARGET_ARM)
1608 {
1609 int i;
b5ff1b31 1610 cpsr_write(env, regs->uregs[16], 0xffffffff);
b346ff46
FB		 1611 for(i = 0; i < 16; i++) {
1612 env->regs[i] = regs->uregs[i];
1613 }
a4f81979
FB		 1614 ts->stack_base = info->start_stack;
1615 ts->heap_base = info->brk;
1616 /* This will be filled in on the first SYS_HEAPINFO call. */
1617 ts->heap_limit = 0;
b346ff46 1618 }
93ac68bc 1619#elif defined(TARGET_SPARC)
060366c5
FB		 1620 {
1621 int i;
1622 env->pc = regs->pc;
1623 env->npc = regs->npc;
1624 env->y = regs->y;
1625 for(i = 0; i < 8; i++)
1626 env->gregs[i] = regs->u_regs[i];
1627 for(i = 0; i < 8; i++)
1628 env->regwptr[i] = regs->u_regs[i + 8];
1629 }
67867308
FB		 1630#elif defined(TARGET_PPC)
1631 {
3fc6c082 1632 ppc_def_t *def;
67867308 1633 int i;
3fc6c082
FB		 1634
1635 /* Choose and initialise CPU */
1636 /* XXX: CPU model (or PVR) should be provided on command line */
1637 // ppc_find_by_name("750gx", &def);
1638 // ppc_find_by_name("750fx", &def);
1639 // ppc_find_by_name("750p", &def);
1640 ppc_find_by_name("750", &def);
1641 // ppc_find_by_name("G3", &def);
1642 // ppc_find_by_name("604r", &def);
1643 // ppc_find_by_name("604e", &def);
1644 // ppc_find_by_name("604", &def);
1645 if (def == NULL) {
c68ea704 1646 cpu_abort(env,
3fc6c082
FB		 1647 "Unable to find PowerPC CPU definition\n");
1648 }
c68ea704 1649 cpu_ppc_register(env, def);
3fc6c082 1650
61190b14 1651 for (i = 0; i < 32; i++) {
4c2e770f 1652 if (i != 12 && i != 6 && i != 13)
61190b14
FB		 1653 env->msr[i] = (regs->msr >> i) & 1;
1654 }
67867308
FB		 1655 env->nip = regs->nip;
1656 for(i = 0; i < 32; i++) {
1657 env->gpr[i] = regs->gpr[i];
1658 }
1659 }
048f6b4d
FB		 1660#elif defined(TARGET_MIPS)
1661 {
1662 int i;
1663
1664 for(i = 0; i < 32; i++) {
1665 env->gpr[i] = regs->regs[i];
1666 }
1667 env->PC = regs->cp0_epc;
1668 }
b346ff46
FB		 1669#else
1670#error unsupported target CPU
1671#endif
31e31b8a 1672
74c33bed
FB		 1673 if (gdbstub_port) {
1674 gdbserver_start (gdbstub_port);
1fddef4b
FB		 1675 gdb_handlesig(env, 0);
1676 }
1b6b029e
FB		 1677 cpu_loop(env);
1678 /* never exits */
31e31b8a
FB		 1679 return 0;
1680}
Qemu copy for testing