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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;
53a5960a 155 uint32_t *p;
6dbad63e
FB		 156 e1 = (addr << 16) | (limit & 0xffff);
157 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
f4beb510 158 e2 |= flags;
53a5960a
PB		 159 p = ptr;
160 p[0] = tswapl(e1);
161 p[1] = tswapl(e2);
f4beb510
FB		 162}
163
164static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
165 unsigned long addr, unsigned int sel)
166{
167 unsigned int e1, e2;
53a5960a 168 uint32_t *p;
f4beb510
FB		 169 e1 = (addr & 0xffff) | (sel << 16);
170 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
53a5960a
PB		 171 p = ptr;
172 p[0] = tswapl(e1);
173 p[1] = tswapl(e2);
6dbad63e
FB		 174}
175
176uint64_t gdt_table[6];
f4beb510
FB		 177uint64_t idt_table[256];
178
179/* only dpl matters as we do only user space emulation */
180static void set_idt(int n, unsigned int dpl)
181{
182 set_gate(idt_table + n, 0, dpl, 0, 0);
183}
31e31b8a 184
89e957e7 185void cpu_loop(CPUX86State *env)
1b6b029e 186{
bc8a22cc 187 int trapnr;
80a9d035 188 target_ulong pc;
9de5e440 189 target_siginfo_t info;
851e67a1 190
1b6b029e 191 for(;;) {
bc8a22cc 192 trapnr = cpu_x86_exec(env);
bc8a22cc 193 switch(trapnr) {
f4beb510
FB		 194 case 0x80:
195 /* linux syscall */
196 env->regs[R_EAX] = do_syscall(env,
197 env->regs[R_EAX],
198 env->regs[R_EBX],
199 env->regs[R_ECX],
200 env->regs[R_EDX],
201 env->regs[R_ESI],
202 env->regs[R_EDI],
203 env->regs[R_EBP]);
204 break;
205 case EXCP0B_NOSEG:
206 case EXCP0C_STACK:
207 info.si_signo = SIGBUS;
208 info.si_errno = 0;
209 info.si_code = TARGET_SI_KERNEL;
210 info._sifields._sigfault._addr = 0;
211 queue_signal(info.si_signo, &info);
212 break;
1b6b029e 213 case EXCP0D_GPF:
851e67a1 214 if (env->eflags & VM_MASK) {
89e957e7 215 handle_vm86_fault(env);
1b6b029e 216 } else {
f4beb510
FB		 217 info.si_signo = SIGSEGV;
218 info.si_errno = 0;
219 info.si_code = TARGET_SI_KERNEL;
220 info._sifields._sigfault._addr = 0;
221 queue_signal(info.si_signo, &info);
1b6b029e
FB		 222 }
223 break;
b689bc57
FB		 224 case EXCP0E_PAGE:
225 info.si_signo = SIGSEGV;
226 info.si_errno = 0;
227 if (!(env->error_code & 1))
228 info.si_code = TARGET_SEGV_MAPERR;
229 else
230 info.si_code = TARGET_SEGV_ACCERR;
970a87a6 231 info._sifields._sigfault._addr = env->cr[2];
b689bc57
FB		 232 queue_signal(info.si_signo, &info);
233 break;
9de5e440 234 case EXCP00_DIVZ:
bc8a22cc 235 if (env->eflags & VM_MASK) {
447db213 236 handle_vm86_trap(env, trapnr);
bc8a22cc
FB		 237 } else {
238 /* division by zero */
239 info.si_signo = SIGFPE;
240 info.si_errno = 0;
241 info.si_code = TARGET_FPE_INTDIV;
242 info._sifields._sigfault._addr = env->eip;
243 queue_signal(info.si_signo, &info);
244 }
9de5e440 245 break;
447db213
FB		 246 case EXCP01_SSTP:
247 case EXCP03_INT3:
248 if (env->eflags & VM_MASK) {
249 handle_vm86_trap(env, trapnr);
250 } else {
251 info.si_signo = SIGTRAP;
252 info.si_errno = 0;
253 if (trapnr == EXCP01_SSTP) {
254 info.si_code = TARGET_TRAP_BRKPT;
255 info._sifields._sigfault._addr = env->eip;
256 } else {
257 info.si_code = TARGET_SI_KERNEL;
258 info._sifields._sigfault._addr = 0;
259 }
260 queue_signal(info.si_signo, &info);
261 }
262 break;
9de5e440
FB		 263 case EXCP04_INTO:
264 case EXCP05_BOUND:
bc8a22cc 265 if (env->eflags & VM_MASK) {
447db213 266 handle_vm86_trap(env, trapnr);
bc8a22cc
FB		 267 } else {
268 info.si_signo = SIGSEGV;
269 info.si_errno = 0;
b689bc57 270 info.si_code = TARGET_SI_KERNEL;
bc8a22cc
FB		 271 info._sifields._sigfault._addr = 0;
272 queue_signal(info.si_signo, &info);
273 }
9de5e440
FB		 274 break;
275 case EXCP06_ILLOP:
276 info.si_signo = SIGILL;
277 info.si_errno = 0;
278 info.si_code = TARGET_ILL_ILLOPN;
279 info._sifields._sigfault._addr = env->eip;
280 queue_signal(info.si_signo, &info);
281 break;
282 case EXCP_INTERRUPT:
283 /* just indicate that signals should be handled asap */
284 break;
1fddef4b
FB		 285 case EXCP_DEBUG:
286 {
287 int sig;
288
289 sig = gdb_handlesig (env, TARGET_SIGTRAP);
290 if (sig)
291 {
292 info.si_signo = sig;
293 info.si_errno = 0;
294 info.si_code = TARGET_TRAP_BRKPT;
295 queue_signal(info.si_signo, &info);
296 }
297 }
298 break;
1b6b029e 299 default:
970a87a6 300 pc = env->segs[R_CS].base + env->eip;
bc8a22cc
FB		 301 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
302 (long)pc, trapnr);
1b6b029e
FB		 303 abort();
304 }
66fb9763 305 process_pending_signals(env);
1b6b029e
FB		 306 }
307}
b346ff46
FB		 308#endif
309
310#ifdef TARGET_ARM
311
6f1f31c0
FB		 312/* XXX: find a better solution */
313extern void tb_invalidate_page_range(target_ulong start, target_ulong end);
314
315static void arm_cache_flush(target_ulong start, target_ulong last)
316{
317 target_ulong addr, last1;
318
319 if (last < start)
320 return;
321 addr = start;
322 for(;;) {
323 last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
324 if (last1 > last)
325 last1 = last;
326 tb_invalidate_page_range(addr, last1 + 1);
327 if (last1 == last)
328 break;
329 addr = last1 + 1;
330 }
331}
332
b346ff46
FB		 333void cpu_loop(CPUARMState *env)
334{
335 int trapnr;
336 unsigned int n, insn;
337 target_siginfo_t info;
b5ff1b31 338 uint32_t addr;
b346ff46
FB		 339
340 for(;;) {
341 trapnr = cpu_arm_exec(env);
342 switch(trapnr) {
343 case EXCP_UDEF:
c6981055
FB		 344 {
345 TaskState *ts = env->opaque;
346 uint32_t opcode;
347
348 /* we handle the FPU emulation here, as Linux */
349 /* we get the opcode */
53a5960a 350 opcode = tget32(env->regs[15]);
c6981055 351
19b045de 352 if (EmulateAll(opcode, &ts->fpa, env) == 0) {
c6981055
FB		 353 info.si_signo = SIGILL;
354 info.si_errno = 0;
355 info.si_code = TARGET_ILL_ILLOPN;
356 info._sifields._sigfault._addr = env->regs[15];
357 queue_signal(info.si_signo, &info);
358 } else {
359 /* increment PC */
360 env->regs[15] += 4;
361 }
362 }
b346ff46
FB		 363 break;
364 case EXCP_SWI:
06c949e6 365 case EXCP_BKPT:
b346ff46 366 {
ce4defa0 367 env->eabi = 1;
b346ff46 368 /* system call */
06c949e6
PB		 369 if (trapnr == EXCP_BKPT) {
370 if (env->thumb) {
53a5960a 371 insn = tget16(env->regs[15]);
06c949e6
PB		 372 n = insn & 0xff;
373 env->regs[15] += 2;
374 } else {
53a5960a 375 insn = tget32(env->regs[15]);
06c949e6
PB		 376 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
377 env->regs[15] += 4;
378 }
192c7bd9 379 } else {
06c949e6 380 if (env->thumb) {
53a5960a 381 insn = tget16(env->regs[15] - 2);
06c949e6
PB		 382 n = insn & 0xff;
383 } else {
53a5960a 384 insn = tget32(env->regs[15] - 4);
06c949e6
PB		 385 n = insn & 0xffffff;
386 }
192c7bd9
FB		 387 }
388
6f1f31c0
FB		 389 if (n == ARM_NR_cacheflush) {
390 arm_cache_flush(env->regs[0], env->regs[1]);
a4f81979
FB		 391 } else if (n == ARM_NR_semihosting
392 || n == ARM_NR_thumb_semihosting) {
393 env->regs[0] = do_arm_semihosting (env);
ce4defa0 394 } else if (n == 0 || n >= ARM_SYSCALL_BASE
192c7bd9 395 || (env->thumb && n == ARM_THUMB_SYSCALL)) {
b346ff46 396 /* linux syscall */
ce4defa0 397 if (env->thumb || n == 0) {
192c7bd9
FB		 398 n = env->regs[7];
399 } else {
400 n -= ARM_SYSCALL_BASE;
ce4defa0 401 env->eabi = 0;
192c7bd9 402 }
b346ff46
FB		 403 env->regs[0] = do_syscall(env,
404 n,
405 env->regs[0],
406 env->regs[1],
407 env->regs[2],
408 env->regs[3],
409 env->regs[4],
e1a2849c 410 env->regs[5]);
b346ff46
FB		 411 } else {
412 goto error;
413 }
414 }
415 break;
43fff238
FB		 416 case EXCP_INTERRUPT:
417 /* just indicate that signals should be handled asap */
418 break;
68016c62 419 case EXCP_PREFETCH_ABORT:
b5ff1b31
FB		 420 addr = env->cp15.c6_data;
421 goto do_segv;
68016c62 422 case EXCP_DATA_ABORT:
b5ff1b31
FB		 423 addr = env->cp15.c6_insn;
424 goto do_segv;
425 do_segv:
68016c62
FB		 426 {
427 info.si_signo = SIGSEGV;
428 info.si_errno = 0;
429 /* XXX: check env->error_code */
430 info.si_code = TARGET_SEGV_MAPERR;
b5ff1b31 431 info._sifields._sigfault._addr = addr;
68016c62
FB		 432 queue_signal(info.si_signo, &info);
433 }
434 break;
1fddef4b
FB		 435 case EXCP_DEBUG:
436 {
437 int sig;
438
439 sig = gdb_handlesig (env, TARGET_SIGTRAP);
440 if (sig)
441 {
442 info.si_signo = sig;
443 info.si_errno = 0;
444 info.si_code = TARGET_TRAP_BRKPT;
445 queue_signal(info.si_signo, &info);
446 }
447 }
448 break;
b346ff46
FB		 449 default:
450 error:
451 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
452 trapnr);
7fe48483 453 cpu_dump_state(env, stderr, fprintf, 0);
b346ff46
FB		 454 abort();
455 }
456 process_pending_signals(env);
457 }
458}
459
460#endif
1b6b029e 461
93ac68bc
FB		 462#ifdef TARGET_SPARC
463
060366c5
FB		 464//#define DEBUG_WIN
465
2623cbaf
FB		 466/* WARNING: dealing with register windows _is_ complicated. More info
467 can be found at http://www.sics.se/~psm/sparcstack.html */
060366c5
FB		 468static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
469{
470 index = (index + cwp * 16) & (16 * NWINDOWS - 1);
471 /* wrap handling : if cwp is on the last window, then we use the
472 registers 'after' the end */
473 if (index < 8 && env->cwp == (NWINDOWS - 1))
474 index += (16 * NWINDOWS);
475 return index;
476}
477
2623cbaf
FB		 478/* save the register window 'cwp1' */
479static inline void save_window_offset(CPUSPARCState *env, int cwp1)
060366c5 480{
2623cbaf 481 unsigned int i;
53a5960a 482 target_ulong sp_ptr;
060366c5 483
53a5960a 484 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
060366c5
FB		 485#if defined(DEBUG_WIN)
486 printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
487 (int)sp_ptr, cwp1);
488#endif
2623cbaf 489 for(i = 0; i < 16; i++) {
53a5960a
PB		 490 tputl(sp_ptr, env->regbase[get_reg_index(env, cwp1, 8 + i)]);
491 sp_ptr += sizeof(target_ulong);
2623cbaf 492 }
060366c5
FB		 493}
494
495static void save_window(CPUSPARCState *env)
496{
2623cbaf
FB		 497 unsigned int new_wim;
498 new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
499 ((1LL << NWINDOWS) - 1);
500 save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
501 env->wim = new_wim;
060366c5
FB		 502}
503
504static void restore_window(CPUSPARCState *env)
505{
506 unsigned int new_wim, i, cwp1;
53a5960a 507 target_ulong sp_ptr;
060366c5
FB		 508
509 new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
510 ((1LL << NWINDOWS) - 1);
511
512 /* restore the invalid window */
513 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
53a5960a 514 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
060366c5
FB		 515#if defined(DEBUG_WIN)
516 printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
517 (int)sp_ptr, cwp1);
518#endif
2623cbaf 519 for(i = 0; i < 16; i++) {
53a5960a
PB		 520 env->regbase[get_reg_index(env, cwp1, 8 + i)] = tgetl(sp_ptr);
521 sp_ptr += sizeof(target_ulong);
2623cbaf 522 }
060366c5
FB		 523 env->wim = new_wim;
524}
525
526static void flush_windows(CPUSPARCState *env)
527{
528 int offset, cwp1;
2623cbaf
FB		 529
530 offset = 1;
060366c5
FB		 531 for(;;) {
532 /* if restore would invoke restore_window(), then we can stop */
2623cbaf 533 cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
060366c5
FB		 534 if (env->wim & (1 << cwp1))
535 break;
2623cbaf 536 save_window_offset(env, cwp1);
060366c5
FB		 537 offset++;
538 }
2623cbaf
FB		 539 /* set wim so that restore will reload the registers */
540 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
541 env->wim = 1 << cwp1;
542#if defined(DEBUG_WIN)
543 printf("flush_windows: nb=%d\n", offset - 1);
80a9d035 544#endif
2623cbaf 545}
060366c5 546
93ac68bc
FB		 547void cpu_loop (CPUSPARCState *env)
548{
060366c5 549 int trapnr, ret;
61ff6f58 550 target_siginfo_t info;
060366c5
FB		 551
552 while (1) {
553 trapnr = cpu_sparc_exec (env);
554
555 switch (trapnr) {
556 case 0x88:
557 case 0x90:
558 ret = do_syscall (env, env->gregs[1],
559 env->regwptr[0], env->regwptr[1],
560 env->regwptr[2], env->regwptr[3],
561 env->regwptr[4], env->regwptr[5]);
562 if ((unsigned int)ret >= (unsigned int)(-515)) {
563 env->psr |= PSR_CARRY;
564 ret = -ret;
565 } else {
566 env->psr &= ~PSR_CARRY;
567 }
568 env->regwptr[0] = ret;
569 /* next instruction */
570 env->pc = env->npc;
571 env->npc = env->npc + 4;
572 break;
573 case 0x83: /* flush windows */
2623cbaf 574 flush_windows(env);
060366c5
FB		 575 /* next instruction */
576 env->pc = env->npc;
577 env->npc = env->npc + 4;
578 break;
3475187d 579#ifndef TARGET_SPARC64
060366c5
FB		 580 case TT_WIN_OVF: /* window overflow */
581 save_window(env);
582 break;
583 case TT_WIN_UNF: /* window underflow */
584 restore_window(env);
585 break;
61ff6f58
FB		 586 case TT_TFAULT:
587 case TT_DFAULT:
588 {
589 info.si_signo = SIGSEGV;
590 info.si_errno = 0;
591 /* XXX: check env->error_code */
592 info.si_code = TARGET_SEGV_MAPERR;
593 info._sifields._sigfault._addr = env->mmuregs[4];
594 queue_signal(info.si_signo, &info);
595 }
596 break;
3475187d
FB		 597#else
598 // XXX
599#endif
e80cfcfc
FB		 600 case 0x100: // XXX, why do we get these?
601 break;
1fddef4b
FB		 602 case EXCP_DEBUG:
603 {
604 int sig;
605
606 sig = gdb_handlesig (env, TARGET_SIGTRAP);
607 if (sig)
608 {
609 info.si_signo = sig;
610 info.si_errno = 0;
611 info.si_code = TARGET_TRAP_BRKPT;
612 queue_signal(info.si_signo, &info);
613 }
614 }
615 break;
060366c5
FB		 616 default:
617 printf ("Unhandled trap: 0x%x\n", trapnr);
7fe48483 618 cpu_dump_state(env, stderr, fprintf, 0);
060366c5
FB		 619 exit (1);
620 }
621 process_pending_signals (env);
622 }
93ac68bc
FB		 623}
624
625#endif
626
67867308 627#ifdef TARGET_PPC
9fddaa0c
FB		 628
629static inline uint64_t cpu_ppc_get_tb (CPUState *env)
630{
631 /* TO FIX */
632 return 0;
633}
634
635uint32_t cpu_ppc_load_tbl (CPUState *env)
636{
637 return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
638}
639
640uint32_t cpu_ppc_load_tbu (CPUState *env)
641{
642 return cpu_ppc_get_tb(env) >> 32;
643}
644
645static void cpu_ppc_store_tb (CPUState *env, uint64_t value)
646{
647 /* TO FIX */
648}
649
650void cpu_ppc_store_tbu (CPUState *env, uint32_t value)
651{
652 cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env));
653}
654
655void cpu_ppc_store_tbl (CPUState *env, uint32_t value)
656{
657 cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value);
658}
659
660uint32_t cpu_ppc_load_decr (CPUState *env)
661{
662 /* TO FIX */
663 return -1;
664}
665
666void cpu_ppc_store_decr (CPUState *env, uint32_t value)
667{
668 /* TO FIX */
669}
670
67867308
FB		 671void cpu_loop(CPUPPCState *env)
672{
67867308 673 target_siginfo_t info;
61190b14
FB		 674 int trapnr;
675 uint32_t ret;
67867308
FB		 676
677 for(;;) {
678 trapnr = cpu_ppc_exec(env);
61190b14
FB		 679 if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
680 trapnr != EXCP_TRACE) {
681 if (loglevel > 0) {
7fe48483 682 cpu_dump_state(env, logfile, fprintf, 0);
61190b14
FB		 683 }
684 }
67867308
FB		 685 switch(trapnr) {
686 case EXCP_NONE:
67867308 687 break;
61190b14
FB		 688 case EXCP_SYSCALL_USER:
689 /* system call */
690 /* WARNING:
691 * PPC ABI uses overflow flag in cr0 to signal an error
692 * in syscalls.
693 */
67867308 694#if 0
61190b14
FB		 695 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
696 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
67867308 697#endif
61190b14
FB		 698 env->crf[0] &= ~0x1;
699 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
700 env->gpr[5], env->gpr[6], env->gpr[7],
701 env->gpr[8]);
702 if (ret > (uint32_t)(-515)) {
703 env->crf[0] |= 0x1;
704 ret = -ret;
705 }
706 env->gpr[3] = ret;
707#if 0
708 printf("syscall returned 0x%08x (%d)\n", ret, ret);
709#endif
710 break;
711 case EXCP_RESET:
712 /* Should not happen ! */
713 fprintf(stderr, "RESET asked... Stop emulation\n");
714 if (loglevel)
715 fprintf(logfile, "RESET asked... Stop emulation\n");
67867308 716 abort();
61190b14
FB		 717 case EXCP_MACHINE_CHECK:
718 fprintf(stderr, "Machine check exeption... Stop emulation\n");
719 if (loglevel)
720 fprintf(logfile, "RESET asked... Stop emulation\n");
721 info.si_signo = TARGET_SIGBUS;
67867308 722 info.si_errno = 0;
61190b14
FB		 723 info.si_code = TARGET_BUS_OBJERR;
724 info._sifields._sigfault._addr = env->nip - 4;
725 queue_signal(info.si_signo, &info);
726 case EXCP_DSI:
3fc6c082
FB		 727 fprintf(stderr, "Invalid data memory access: 0x%08x\n",
728 env->spr[SPR_DAR]);
61190b14
FB		 729 if (loglevel) {
730 fprintf(logfile, "Invalid data memory access: 0x%08x\n",
3fc6c082 731 env->spr[SPR_DAR]);
61190b14 732 }
2be0071f
FB		 733 switch (env->error_code & 0xFF000000) {
734 case 0x40000000:
61190b14
FB		 735 info.si_signo = TARGET_SIGSEGV;
736 info.si_errno = 0;
737 info.si_code = TARGET_SEGV_MAPERR;
738 break;
2be0071f 739 case 0x04000000:
61190b14
FB		 740 info.si_signo = TARGET_SIGILL;
741 info.si_errno = 0;
742 info.si_code = TARGET_ILL_ILLADR;
743 break;
2be0071f 744 case 0x08000000:
61190b14
FB		 745 info.si_signo = TARGET_SIGSEGV;
746 info.si_errno = 0;
747 info.si_code = TARGET_SEGV_ACCERR;
748 break;
61190b14
FB		 749 default:
750 /* Let's send a regular segfault... */
751 fprintf(stderr, "Invalid segfault errno (%02x)\n",
752 env->error_code);
753 if (loglevel) {
754 fprintf(logfile, "Invalid segfault errno (%02x)\n",
755 env->error_code);
756 }
757 info.si_signo = TARGET_SIGSEGV;
758 info.si_errno = 0;
759 info.si_code = TARGET_SEGV_MAPERR;
760 break;
761 }
67867308
FB		 762 info._sifields._sigfault._addr = env->nip;
763 queue_signal(info.si_signo, &info);
764 break;
61190b14 765 case EXCP_ISI:
67867308 766 fprintf(stderr, "Invalid instruction fetch\n");
61190b14
FB		 767 if (loglevel)
768 fprintf(logfile, "Invalid instruction fetch\n");
2be0071f
FB		 769 switch (env->error_code & 0xFF000000) {
770 case 0x40000000:
61190b14 771 info.si_signo = TARGET_SIGSEGV;
67867308 772 info.si_errno = 0;
61190b14
FB		 773 info.si_code = TARGET_SEGV_MAPERR;
774 break;
2be0071f
FB		 775 case 0x10000000:
776 case 0x08000000:
61190b14
FB		 777 info.si_signo = TARGET_SIGSEGV;
778 info.si_errno = 0;
779 info.si_code = TARGET_SEGV_ACCERR;
780 break;
781 default:
782 /* Let's send a regular segfault... */
783 fprintf(stderr, "Invalid segfault errno (%02x)\n",
784 env->error_code);
785 if (loglevel) {
786 fprintf(logfile, "Invalid segfault errno (%02x)\n",
787 env->error_code);
788 }
789 info.si_signo = TARGET_SIGSEGV;
790 info.si_errno = 0;
791 info.si_code = TARGET_SEGV_MAPERR;
792 break;
793 }
794 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 795 queue_signal(info.si_signo, &info);
796 break;
61190b14
FB		 797 case EXCP_EXTERNAL:
798 /* Should not happen ! */
799 fprintf(stderr, "External interruption... Stop emulation\n");
800 if (loglevel)
801 fprintf(logfile, "External interruption... Stop emulation\n");
67867308 802 abort();
61190b14
FB		 803 case EXCP_ALIGN:
804 fprintf(stderr, "Invalid unaligned memory access\n");
805 if (loglevel)
806 fprintf(logfile, "Invalid unaligned memory access\n");
807 info.si_signo = TARGET_SIGBUS;
67867308 808 info.si_errno = 0;
61190b14
FB		 809 info.si_code = TARGET_BUS_ADRALN;
810 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 811 queue_signal(info.si_signo, &info);
812 break;
61190b14
FB		 813 case EXCP_PROGRAM:
814 switch (env->error_code & ~0xF) {
815 case EXCP_FP:
816 fprintf(stderr, "Program exception\n");
817 if (loglevel)
818 fprintf(logfile, "Program exception\n");
819 /* Set FX */
820 env->fpscr[7] |= 0x8;
821 /* Finally, update FEX */
822 if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
823 ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
824 env->fpscr[7] |= 0x4;
825 info.si_signo = TARGET_SIGFPE;
826 info.si_errno = 0;
827 switch (env->error_code & 0xF) {
828 case EXCP_FP_OX:
829 info.si_code = TARGET_FPE_FLTOVF;
830 break;
831 case EXCP_FP_UX:
832 info.si_code = TARGET_FPE_FLTUND;
833 break;
834 case EXCP_FP_ZX:
835 case EXCP_FP_VXZDZ:
836 info.si_code = TARGET_FPE_FLTDIV;
837 break;
838 case EXCP_FP_XX:
839 info.si_code = TARGET_FPE_FLTRES;
840 break;
841 case EXCP_FP_VXSOFT:
842 info.si_code = TARGET_FPE_FLTINV;
843 break;
844 case EXCP_FP_VXNAN:
845 case EXCP_FP_VXISI:
846 case EXCP_FP_VXIDI:
847 case EXCP_FP_VXIMZ:
848 case EXCP_FP_VXVC:
849 case EXCP_FP_VXSQRT:
850 case EXCP_FP_VXCVI:
851 info.si_code = TARGET_FPE_FLTSUB;
852 break;
853 default:
854 fprintf(stderr, "Unknown floating point exception "
855 "(%02x)\n", env->error_code);
856 if (loglevel) {
857 fprintf(logfile, "Unknown floating point exception "
858 "(%02x)\n", env->error_code & 0xF);
859 }
860 }
861 break;
67867308 862 case EXCP_INVAL:
61190b14
FB		 863 fprintf(stderr, "Invalid instruction\n");
864 if (loglevel)
865 fprintf(logfile, "Invalid instruction\n");
866 info.si_signo = TARGET_SIGILL;
867 info.si_errno = 0;
868 switch (env->error_code & 0xF) {
869 case EXCP_INVAL_INVAL:
870 info.si_code = TARGET_ILL_ILLOPC;
871 break;
872 case EXCP_INVAL_LSWX:
67867308 873 info.si_code = TARGET_ILL_ILLOPN;
61190b14
FB		 874 break;
875 case EXCP_INVAL_SPR:
876 info.si_code = TARGET_ILL_PRVREG;
877 break;
878 case EXCP_INVAL_FP:
879 info.si_code = TARGET_ILL_COPROC;
880 break;
881 default:
882 fprintf(stderr, "Unknown invalid operation (%02x)\n",
883 env->error_code & 0xF);
884 if (loglevel) {
885 fprintf(logfile, "Unknown invalid operation (%02x)\n",
886 env->error_code & 0xF);
887 }
888 info.si_code = TARGET_ILL_ILLADR;
889 break;
890 }
891 break;
892 case EXCP_PRIV:
893 fprintf(stderr, "Privilege violation\n");
894 if (loglevel)
895 fprintf(logfile, "Privilege violation\n");
896 info.si_signo = TARGET_SIGILL;
897 info.si_errno = 0;
898 switch (env->error_code & 0xF) {
899 case EXCP_PRIV_OPC:
900 info.si_code = TARGET_ILL_PRVOPC;
901 break;
902 case EXCP_PRIV_REG:
903 info.si_code = TARGET_ILL_PRVREG;
904 break;
905 default:
906 fprintf(stderr, "Unknown privilege violation (%02x)\n",
907 env->error_code & 0xF);
908 info.si_code = TARGET_ILL_PRVOPC;
909 break;
910 }
911 break;
912 case EXCP_TRAP:
913 fprintf(stderr, "Tried to call a TRAP\n");
914 if (loglevel)
915 fprintf(logfile, "Tried to call a TRAP\n");
916 abort();
917 default:
918 /* Should not happen ! */
919 fprintf(stderr, "Unknown program exception (%02x)\n",
920 env->error_code);
921 if (loglevel) {
922 fprintf(logfile, "Unknwon program exception (%02x)\n",
923 env->error_code);
924 }
925 abort();
926 }
927 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 928 queue_signal(info.si_signo, &info);
929 break;
61190b14
FB		 930 case EXCP_NO_FP:
931 fprintf(stderr, "No floating point allowed\n");
932 if (loglevel)
933 fprintf(logfile, "No floating point allowed\n");
934 info.si_signo = TARGET_SIGILL;
67867308 935 info.si_errno = 0;
61190b14
FB		 936 info.si_code = TARGET_ILL_COPROC;
937 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 938 queue_signal(info.si_signo, &info);
939 break;
61190b14
FB		 940 case EXCP_DECR:
941 /* Should not happen ! */
942 fprintf(stderr, "Decrementer exception\n");
943 if (loglevel)
944 fprintf(logfile, "Decrementer exception\n");
945 abort();
61190b14
FB		 946 case EXCP_TRACE:
947 /* Do nothing: we use this to trace execution */
67867308 948 break;
61190b14
FB		 949 case EXCP_FP_ASSIST:
950 /* Should not happen ! */
951 fprintf(stderr, "Floating point assist exception\n");
952 if (loglevel)
953 fprintf(logfile, "Floating point assist exception\n");
954 abort();
955 case EXCP_MTMSR:
956 /* We reloaded the msr, just go on */
9fddaa0c 957 if (msr_pr == 0) {
61190b14
FB		 958 fprintf(stderr, "Tried to go into supervisor mode !\n");
959 if (loglevel)
960 fprintf(logfile, "Tried to go into supervisor mode !\n");
961 abort();
67867308 962 }
61190b14
FB		 963 break;
964 case EXCP_BRANCH:
965 /* We stopped because of a jump... */
966 break;
61190b14
FB		 967 case EXCP_INTERRUPT:
968 /* Don't know why this should ever happen... */
969 break;
1fddef4b
FB		 970 case EXCP_DEBUG:
971 {
972 int sig;
973
974 sig = gdb_handlesig (env, TARGET_SIGTRAP);
975 if (sig)
976 {
977 info.si_signo = sig;
978 info.si_errno = 0;
979 info.si_code = TARGET_TRAP_BRKPT;
980 queue_signal(info.si_signo, &info);
981 }
982 }
983 break;
67867308 984 default:
67867308
FB		 985 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
986 trapnr);
61190b14
FB		 987 if (loglevel) {
988 fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
989 "0x%02x - aborting\n", trapnr, env->error_code);
990 }
67867308
FB		 991 abort();
992 }
993 process_pending_signals(env);
994 }
995}
996#endif
997
048f6b4d
FB		 998#ifdef TARGET_MIPS
999
1000#define MIPS_SYS(name, args) args,
1001
1002static const uint8_t mips_syscall_args[] = {
1003 MIPS_SYS(sys_syscall , 0) /* 4000 */
1004 MIPS_SYS(sys_exit , 1)
1005 MIPS_SYS(sys_fork , 0)
1006 MIPS_SYS(sys_read , 3)
1007 MIPS_SYS(sys_write , 3)
1008 MIPS_SYS(sys_open , 3) /* 4005 */
1009 MIPS_SYS(sys_close , 1)
1010 MIPS_SYS(sys_waitpid , 3)
1011 MIPS_SYS(sys_creat , 2)
1012 MIPS_SYS(sys_link , 2)
1013 MIPS_SYS(sys_unlink , 1) /* 4010 */
1014 MIPS_SYS(sys_execve , 0)
1015 MIPS_SYS(sys_chdir , 1)
1016 MIPS_SYS(sys_time , 1)
1017 MIPS_SYS(sys_mknod , 3)
1018 MIPS_SYS(sys_chmod , 2) /* 4015 */
1019 MIPS_SYS(sys_lchown , 3)
1020 MIPS_SYS(sys_ni_syscall , 0)
1021 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1022 MIPS_SYS(sys_lseek , 3)
1023 MIPS_SYS(sys_getpid , 0) /* 4020 */
1024 MIPS_SYS(sys_mount , 5)
1025 MIPS_SYS(sys_oldumount , 1)
1026 MIPS_SYS(sys_setuid , 1)
1027 MIPS_SYS(sys_getuid , 0)
1028 MIPS_SYS(sys_stime , 1) /* 4025 */
1029 MIPS_SYS(sys_ptrace , 4)
1030 MIPS_SYS(sys_alarm , 1)
1031 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1032 MIPS_SYS(sys_pause , 0)
1033 MIPS_SYS(sys_utime , 2) /* 4030 */
1034 MIPS_SYS(sys_ni_syscall , 0)
1035 MIPS_SYS(sys_ni_syscall , 0)
1036 MIPS_SYS(sys_access , 2)
1037 MIPS_SYS(sys_nice , 1)
1038 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1039 MIPS_SYS(sys_sync , 0)
1040 MIPS_SYS(sys_kill , 2)
1041 MIPS_SYS(sys_rename , 2)
1042 MIPS_SYS(sys_mkdir , 2)
1043 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1044 MIPS_SYS(sys_dup , 1)
1045 MIPS_SYS(sys_pipe , 0)
1046 MIPS_SYS(sys_times , 1)
1047 MIPS_SYS(sys_ni_syscall , 0)
1048 MIPS_SYS(sys_brk , 1) /* 4045 */
1049 MIPS_SYS(sys_setgid , 1)
1050 MIPS_SYS(sys_getgid , 0)
1051 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1052 MIPS_SYS(sys_geteuid , 0)
1053 MIPS_SYS(sys_getegid , 0) /* 4050 */
1054 MIPS_SYS(sys_acct , 0)
1055 MIPS_SYS(sys_umount , 2)
1056 MIPS_SYS(sys_ni_syscall , 0)
1057 MIPS_SYS(sys_ioctl , 3)
1058 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1059 MIPS_SYS(sys_ni_syscall , 2)
1060 MIPS_SYS(sys_setpgid , 2)
1061 MIPS_SYS(sys_ni_syscall , 0)
1062 MIPS_SYS(sys_olduname , 1)
1063 MIPS_SYS(sys_umask , 1) /* 4060 */
1064 MIPS_SYS(sys_chroot , 1)
1065 MIPS_SYS(sys_ustat , 2)
1066 MIPS_SYS(sys_dup2 , 2)
1067 MIPS_SYS(sys_getppid , 0)
1068 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1069 MIPS_SYS(sys_setsid , 0)
1070 MIPS_SYS(sys_sigaction , 3)
1071 MIPS_SYS(sys_sgetmask , 0)
1072 MIPS_SYS(sys_ssetmask , 1)
1073 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1074 MIPS_SYS(sys_setregid , 2)
1075 MIPS_SYS(sys_sigsuspend , 0)
1076 MIPS_SYS(sys_sigpending , 1)
1077 MIPS_SYS(sys_sethostname , 2)
1078 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1079 MIPS_SYS(sys_getrlimit , 2)
1080 MIPS_SYS(sys_getrusage , 2)
1081 MIPS_SYS(sys_gettimeofday, 2)
1082 MIPS_SYS(sys_settimeofday, 2)
1083 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1084 MIPS_SYS(sys_setgroups , 2)
1085 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1086 MIPS_SYS(sys_symlink , 2)
1087 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1088 MIPS_SYS(sys_readlink , 3) /* 4085 */
1089 MIPS_SYS(sys_uselib , 1)
1090 MIPS_SYS(sys_swapon , 2)
1091 MIPS_SYS(sys_reboot , 3)
1092 MIPS_SYS(old_readdir , 3)
1093 MIPS_SYS(old_mmap , 6) /* 4090 */
1094 MIPS_SYS(sys_munmap , 2)
1095 MIPS_SYS(sys_truncate , 2)
1096 MIPS_SYS(sys_ftruncate , 2)
1097 MIPS_SYS(sys_fchmod , 2)
1098 MIPS_SYS(sys_fchown , 3) /* 4095 */
1099 MIPS_SYS(sys_getpriority , 2)
1100 MIPS_SYS(sys_setpriority , 3)
1101 MIPS_SYS(sys_ni_syscall , 0)
1102 MIPS_SYS(sys_statfs , 2)
1103 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1104 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1105 MIPS_SYS(sys_socketcall , 2)
1106 MIPS_SYS(sys_syslog , 3)
1107 MIPS_SYS(sys_setitimer , 3)
1108 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1109 MIPS_SYS(sys_newstat , 2)
1110 MIPS_SYS(sys_newlstat , 2)
1111 MIPS_SYS(sys_newfstat , 2)
1112 MIPS_SYS(sys_uname , 1)
1113 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1114 MIPS_SYS(sys_vhangup , 0)
1115 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1116 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1117 MIPS_SYS(sys_wait4 , 4)
1118 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1119 MIPS_SYS(sys_sysinfo , 1)
1120 MIPS_SYS(sys_ipc , 6)
1121 MIPS_SYS(sys_fsync , 1)
1122 MIPS_SYS(sys_sigreturn , 0)
1123 MIPS_SYS(sys_clone , 0) /* 4120 */
1124 MIPS_SYS(sys_setdomainname, 2)
1125 MIPS_SYS(sys_newuname , 1)
1126 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1127 MIPS_SYS(sys_adjtimex , 1)
1128 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1129 MIPS_SYS(sys_sigprocmask , 3)
1130 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1131 MIPS_SYS(sys_init_module , 5)
1132 MIPS_SYS(sys_delete_module, 1)
1133 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1134 MIPS_SYS(sys_quotactl , 0)
1135 MIPS_SYS(sys_getpgid , 1)
1136 MIPS_SYS(sys_fchdir , 1)
1137 MIPS_SYS(sys_bdflush , 2)
1138 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1139 MIPS_SYS(sys_personality , 1)
1140 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1141 MIPS_SYS(sys_setfsuid , 1)
1142 MIPS_SYS(sys_setfsgid , 1)
1143 MIPS_SYS(sys_llseek , 5) /* 4140 */
1144 MIPS_SYS(sys_getdents , 3)
1145 MIPS_SYS(sys_select , 5)
1146 MIPS_SYS(sys_flock , 2)
1147 MIPS_SYS(sys_msync , 3)
1148 MIPS_SYS(sys_readv , 3) /* 4145 */
1149 MIPS_SYS(sys_writev , 3)
1150 MIPS_SYS(sys_cacheflush , 3)
1151 MIPS_SYS(sys_cachectl , 3)
1152 MIPS_SYS(sys_sysmips , 4)
1153 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1154 MIPS_SYS(sys_getsid , 1)
1155 MIPS_SYS(sys_fdatasync , 0)
1156 MIPS_SYS(sys_sysctl , 1)
1157 MIPS_SYS(sys_mlock , 2)
1158 MIPS_SYS(sys_munlock , 2) /* 4155 */
1159 MIPS_SYS(sys_mlockall , 1)
1160 MIPS_SYS(sys_munlockall , 0)
1161 MIPS_SYS(sys_sched_setparam, 2)
1162 MIPS_SYS(sys_sched_getparam, 2)
1163 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1164 MIPS_SYS(sys_sched_getscheduler, 1)
1165 MIPS_SYS(sys_sched_yield , 0)
1166 MIPS_SYS(sys_sched_get_priority_max, 1)
1167 MIPS_SYS(sys_sched_get_priority_min, 1)
1168 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1169 MIPS_SYS(sys_nanosleep, 2)
1170 MIPS_SYS(sys_mremap , 4)
1171 MIPS_SYS(sys_accept , 3)
1172 MIPS_SYS(sys_bind , 3)
1173 MIPS_SYS(sys_connect , 3) /* 4170 */
1174 MIPS_SYS(sys_getpeername , 3)
1175 MIPS_SYS(sys_getsockname , 3)
1176 MIPS_SYS(sys_getsockopt , 5)
1177 MIPS_SYS(sys_listen , 2)
1178 MIPS_SYS(sys_recv , 4) /* 4175 */
1179 MIPS_SYS(sys_recvfrom , 6)
1180 MIPS_SYS(sys_recvmsg , 3)
1181 MIPS_SYS(sys_send , 4)
1182 MIPS_SYS(sys_sendmsg , 3)
1183 MIPS_SYS(sys_sendto , 6) /* 4180 */
1184 MIPS_SYS(sys_setsockopt , 5)
1185 MIPS_SYS(sys_shutdown , 2)
1186 MIPS_SYS(sys_socket , 3)
1187 MIPS_SYS(sys_socketpair , 4)
1188 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1189 MIPS_SYS(sys_getresuid , 3)
1190 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1191 MIPS_SYS(sys_poll , 3)
1192 MIPS_SYS(sys_nfsservctl , 3)
1193 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1194 MIPS_SYS(sys_getresgid , 3)
1195 MIPS_SYS(sys_prctl , 5)
1196 MIPS_SYS(sys_rt_sigreturn, 0)
1197 MIPS_SYS(sys_rt_sigaction, 4)
1198 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1199 MIPS_SYS(sys_rt_sigpending, 2)
1200 MIPS_SYS(sys_rt_sigtimedwait, 4)
1201 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1202 MIPS_SYS(sys_rt_sigsuspend, 0)
1203 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1204 MIPS_SYS(sys_pwrite64 , 6)
1205 MIPS_SYS(sys_chown , 3)
1206 MIPS_SYS(sys_getcwd , 2)
1207 MIPS_SYS(sys_capget , 2)
1208 MIPS_SYS(sys_capset , 2) /* 4205 */
1209 MIPS_SYS(sys_sigaltstack , 0)
1210 MIPS_SYS(sys_sendfile , 4)
1211 MIPS_SYS(sys_ni_syscall , 0)
1212 MIPS_SYS(sys_ni_syscall , 0)
1213 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1214 MIPS_SYS(sys_truncate64 , 4)
1215 MIPS_SYS(sys_ftruncate64 , 4)
1216 MIPS_SYS(sys_stat64 , 2)
1217 MIPS_SYS(sys_lstat64 , 2)
1218 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1219 MIPS_SYS(sys_pivot_root , 2)
1220 MIPS_SYS(sys_mincore , 3)
1221 MIPS_SYS(sys_madvise , 3)
1222 MIPS_SYS(sys_getdents64 , 3)
1223 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1224 MIPS_SYS(sys_ni_syscall , 0)
1225 MIPS_SYS(sys_gettid , 0)
1226 MIPS_SYS(sys_readahead , 5)
1227 MIPS_SYS(sys_setxattr , 5)
1228 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1229 MIPS_SYS(sys_fsetxattr , 5)
1230 MIPS_SYS(sys_getxattr , 4)
1231 MIPS_SYS(sys_lgetxattr , 4)
1232 MIPS_SYS(sys_fgetxattr , 4)
1233 MIPS_SYS(sys_listxattr , 3) /* 4230 */
1234 MIPS_SYS(sys_llistxattr , 3)
1235 MIPS_SYS(sys_flistxattr , 3)
1236 MIPS_SYS(sys_removexattr , 2)
1237 MIPS_SYS(sys_lremovexattr, 2)
1238 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1239 MIPS_SYS(sys_tkill , 2)
1240 MIPS_SYS(sys_sendfile64 , 5)
1241 MIPS_SYS(sys_futex , 2)
1242 MIPS_SYS(sys_sched_setaffinity, 3)
1243 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1244 MIPS_SYS(sys_io_setup , 2)
1245 MIPS_SYS(sys_io_destroy , 1)
1246 MIPS_SYS(sys_io_getevents, 5)
1247 MIPS_SYS(sys_io_submit , 3)
1248 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1249 MIPS_SYS(sys_exit_group , 1)
1250 MIPS_SYS(sys_lookup_dcookie, 3)
1251 MIPS_SYS(sys_epoll_create, 1)
1252 MIPS_SYS(sys_epoll_ctl , 4)
1253 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1254 MIPS_SYS(sys_remap_file_pages, 5)
1255 MIPS_SYS(sys_set_tid_address, 1)
1256 MIPS_SYS(sys_restart_syscall, 0)
1257 MIPS_SYS(sys_fadvise64_64, 7)
1258 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1259 MIPS_SYS(sys_fstatfs64 , 2)
1260 MIPS_SYS(sys_timer_create, 3)
1261 MIPS_SYS(sys_timer_settime, 4)
1262 MIPS_SYS(sys_timer_gettime, 2)
1263 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1264 MIPS_SYS(sys_timer_delete, 1)
1265 MIPS_SYS(sys_clock_settime, 2)
1266 MIPS_SYS(sys_clock_gettime, 2)
1267 MIPS_SYS(sys_clock_getres, 2)
1268 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1269 MIPS_SYS(sys_tgkill , 3)
1270 MIPS_SYS(sys_utimes , 2)
1271 MIPS_SYS(sys_mbind , 4)
1272 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1273 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1274 MIPS_SYS(sys_mq_open , 4)
1275 MIPS_SYS(sys_mq_unlink , 1)
1276 MIPS_SYS(sys_mq_timedsend, 5)
1277 MIPS_SYS(sys_mq_timedreceive, 5)
1278 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1279 MIPS_SYS(sys_mq_getsetattr, 3)
1280 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1281 MIPS_SYS(sys_waitid , 4)
1282 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1283 MIPS_SYS(sys_add_key , 5)
1284 MIPS_SYS(sys_request_key , 4)
1285 MIPS_SYS(sys_keyctl , 5)
1286};
1287
1288#undef MIPS_SYS
1289
1290void cpu_loop(CPUMIPSState *env)
1291{
1292 target_siginfo_t info;
1293 int trapnr, ret, nb_args;
1294 unsigned int syscall_num;
1295 target_ulong arg5, arg6, sp_reg;
1296
1297 for(;;) {
1298 trapnr = cpu_mips_exec(env);
1299 switch(trapnr) {
1300 case EXCP_SYSCALL:
1301 {
1302 syscall_num = env->gpr[2] - 4000;
1303 if (syscall_num >= sizeof(mips_syscall_args)) {
1304 ret = -ENOSYS;
1305 } else {
1306 nb_args = mips_syscall_args[syscall_num];
1307 if (nb_args >= 5) {
1308 sp_reg = env->gpr[29];
1309 /* these arguments are taken from the stack */
53a5960a 1310 arg5 = tgetl(sp_reg + 16);
048f6b4d 1311 if (nb_args >= 6) {
53a5960a 1312 arg6 = tgetl(sp_reg + 20);
048f6b4d
FB		 1313 } else {
1314 arg6 = 0;
1315 }
1316 } else {
1317 arg5 = 0;
1318 arg6 = 0;
1319 }
1320 ret = do_syscall(env,
1321 env->gpr[2],
1322 env->gpr[4],
1323 env->gpr[5],
1324 env->gpr[6],
1325 env->gpr[7],
1326 arg5,
1327 arg6);
1328 }
1329 fail:
1330 env->PC += 4;
1331 if ((unsigned int)ret >= (unsigned int)(-1133)) {
1332 env->gpr[7] = 1; /* error flag */
1333 ret = -ret;
1334 env->gpr[0] = ret;
1335 env->gpr[2] = ret;
1336 } else {
1337 env->gpr[7] = 0; /* error flag */
1338 env->gpr[2] = ret;
1339 }
1340 }
1341 break;
6900e84b 1342 case EXCP_CpU:
048f6b4d
FB		 1343 case EXCP_RI:
1344 {
1345 uint32_t insn, op;
1346
53a5960a 1347 insn = tget32(env->PC);
048f6b4d
FB		 1348 op = insn >> 26;
1349 // printf("insn=%08x op=%02x\n", insn, op);
1350 /* XXX: totally dummy FP ops just to be able to launch
1351 a few executables */
1352 switch(op) {
1353 case 0x31: /* LWC1 */
1354 env->PC += 4;
1355 break;
1356 case 0x39: /* SWC1 */
1357 env->PC += 4;
1358 break;
1359 case 0x11:
1360 switch((insn >> 21) & 0x1f) {
1361 case 0x02: /* CFC1 */
1362 env->PC += 4;
1363 break;
1364 default:
1365 goto sigill;
1366 }
1367 break;
1368 default:
1369 sigill:
1370 info.si_signo = TARGET_SIGILL;
1371 info.si_errno = 0;
1372 info.si_code = 0;
1373 queue_signal(info.si_signo, &info);
1374 break;
1375 }
1376 }
1377 break;
1378 default:
1379 // error:
1380 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1381 trapnr);
1382 cpu_dump_state(env, stderr, fprintf, 0);
1383 abort();
1384 }
1385 process_pending_signals(env);
1386 }
1387}
1388#endif
1389
fdf9b3e8
FB		 1390#ifdef TARGET_SH4
1391void cpu_loop (CPUState *env)
1392{
1393 int trapnr, ret;
1394 // target_siginfo_t info;
1395
1396 while (1) {
1397 trapnr = cpu_sh4_exec (env);
1398
1399 switch (trapnr) {
1400 case 0x160:
1401 ret = do_syscall(env,
1402 env->gregs[0x13],
1403 env->gregs[0x14],
1404 env->gregs[0x15],
1405 env->gregs[0x16],
1406 env->gregs[0x17],
1407 env->gregs[0x10],
1408 0);
1409 env->gregs[0x10] = ret;
1410 env->pc += 2;
1411 break;
1412 default:
1413 printf ("Unhandled trap: 0x%x\n", trapnr);
1414 cpu_dump_state(env, stderr, fprintf, 0);
1415 exit (1);
1416 }
1417 process_pending_signals (env);
1418 }
1419}
1420#endif
1421
31e31b8a
FB		 1422void usage(void)
1423{
f5a8510c 1424 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2005 Fabrice Bellard\n"
1fddef4b 1425 "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] program [arguments...]\n"
b346ff46 1426 "Linux CPU emulator (compiled for %s emulation)\n"
d691f669 1427 "\n"
54936004 1428 "-h print this help\n"
74c33bed 1429 "-g port wait gdb connection to port\n"
b346ff46
FB		 1430 "-L path set the elf interpreter prefix (default=%s)\n"
1431 "-s size set the stack size in bytes (default=%ld)\n"
54936004
FB		 1432 "\n"
1433 "debug options:\n"
c6981055
FB		 1434#ifdef USE_CODE_COPY
1435 "-no-code-copy disable code copy acceleration\n"
1436#endif
6f1f31c0 1437 "-d options activate log (logfile=%s)\n"
54936004 1438 "-p pagesize set the host page size to 'pagesize'\n",
b346ff46 1439 TARGET_ARCH,
d691f669 1440 interp_prefix,
54936004
FB		 1441 x86_stack_size,
1442 DEBUG_LOGFILE);
74cd30b8 1443 _exit(1);
31e31b8a
FB		 1444}
1445
9de5e440 1446/* XXX: currently only used for async signals (see signal.c) */
b346ff46 1447CPUState *global_env;
59faf6d6 1448
851e67a1
FB		 1449/* used to free thread contexts */
1450TaskState *first_task_state;
9de5e440 1451
31e31b8a
FB		 1452int main(int argc, char **argv)
1453{
1454 const char *filename;
01ffc75b 1455 struct target_pt_regs regs1, *regs = &regs1;
31e31b8a 1456 struct image_info info1, *info = &info1;
851e67a1 1457 TaskState ts1, *ts = &ts1;
b346ff46 1458 CPUState *env;
586314f2 1459 int optind;
d691f669 1460 const char *r;
74c33bed 1461 int gdbstub_port = 0;
d691f669 1462
31e31b8a
FB		 1463 if (argc <= 1)
1464 usage();
f801f97e 1465
cc38b844
FB		 1466 /* init debug */
1467 cpu_set_log_filename(DEBUG_LOGFILE);
1468
586314f2 1469 optind = 1;
d691f669
FB		 1470 for(;;) {
1471 if (optind >= argc)
1472 break;
1473 r = argv[optind];
1474 if (r[0] != '-')
1475 break;
586314f2 1476 optind++;
d691f669
FB		 1477 r++;
1478 if (!strcmp(r, "-")) {
1479 break;
1480 } else if (!strcmp(r, "d")) {
e19e89a5
FB		 1481 int mask;
1482 CPULogItem *item;
6f1f31c0
FB		 1483
1484 if (optind >= argc)
1485 break;
e19e89a5 1486
6f1f31c0
FB		 1487 r = argv[optind++];
1488 mask = cpu_str_to_log_mask(r);
e19e89a5
FB		 1489 if (!mask) {
1490 printf("Log items (comma separated):\n");
1491 for(item = cpu_log_items; item->mask != 0; item++) {
1492 printf("%-10s %s\n", item->name, item->help);
1493 }
1494 exit(1);
1495 }
1496 cpu_set_log(mask);
d691f669
FB		 1497 } else if (!strcmp(r, "s")) {
1498 r = argv[optind++];
1499 x86_stack_size = strtol(r, (char **)&r, 0);
1500 if (x86_stack_size <= 0)
1501 usage();
1502 if (*r == 'M')
1503 x86_stack_size *= 1024 * 1024;
1504 else if (*r == 'k' || *r == 'K')
1505 x86_stack_size *= 1024;
1506 } else if (!strcmp(r, "L")) {
1507 interp_prefix = argv[optind++];
54936004 1508 } else if (!strcmp(r, "p")) {
83fb7adf
FB		 1509 qemu_host_page_size = atoi(argv[optind++]);
1510 if (qemu_host_page_size == 0 ||
1511 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
54936004
FB		 1512 fprintf(stderr, "page size must be a power of two\n");
1513 exit(1);
1514 }
1fddef4b 1515 } else if (!strcmp(r, "g")) {
74c33bed 1516 gdbstub_port = atoi(argv[optind++]);
c6981055
FB		 1517 } else
1518#ifdef USE_CODE_COPY
1519 if (!strcmp(r, "no-code-copy")) {
1520 code_copy_enabled = 0;
1521 } else
1522#endif
1523 {
d691f669
FB		 1524 usage();
1525 }
586314f2 1526 }
d691f669
FB		 1527 if (optind >= argc)
1528 usage();
586314f2
FB		 1529 filename = argv[optind];
1530
31e31b8a 1531 /* Zero out regs */
01ffc75b 1532 memset(regs, 0, sizeof(struct target_pt_regs));
31e31b8a
FB		 1533
1534 /* Zero out image_info */
1535 memset(info, 0, sizeof(struct image_info));
1536
74cd30b8
FB		 1537 /* Scan interp_prefix dir for replacement files. */
1538 init_paths(interp_prefix);
1539
83fb7adf
FB		 1540 /* NOTE: we need to init the CPU at this stage to get
1541 qemu_host_page_size */
b346ff46 1542 env = cpu_init();
15338fd7 1543 global_env = env;
92ccca6a 1544
74cd30b8 1545 if (elf_exec(filename, argv+optind, environ, regs, info) != 0) {
31e31b8a 1546 printf("Error loading %s\n", filename);
74cd30b8 1547 _exit(1);
31e31b8a
FB		 1548 }
1549
4b74fe1f 1550 if (loglevel) {
54936004
FB		 1551 page_dump(logfile);
1552
4b74fe1f
FB		 1553 fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk);
1554 fprintf(logfile, "end_code 0x%08lx\n" , info->end_code);
1555 fprintf(logfile, "start_code 0x%08lx\n" , info->start_code);
1556 fprintf(logfile, "end_data 0x%08lx\n" , info->end_data);
1557 fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack);
1558 fprintf(logfile, "brk 0x%08lx\n" , info->brk);
b346ff46 1559 fprintf(logfile, "entry 0x%08lx\n" , info->entry);
4b74fe1f 1560 }
31e31b8a 1561
53a5960a 1562 target_set_brk(info->brk);
31e31b8a 1563 syscall_init();
66fb9763 1564 signal_init();
31e31b8a 1565
851e67a1
FB		 1566 /* build Task State */
1567 memset(ts, 0, sizeof(TaskState));
1568 env->opaque = ts;
1569 ts->used = 1;
59faf6d6 1570 env->user_mode_only = 1;
851e67a1 1571
b346ff46 1572#if defined(TARGET_I386)
2e255c6b
FB		 1573 cpu_x86_set_cpl(env, 3);
1574
3802ce26 1575 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
1bde465e
FB		 1576 env->hflags |= HF_PE_MASK;
1577 if (env->cpuid_features & CPUID_SSE) {
1578 env->cr[4] |= CR4_OSFXSR_MASK;
1579 env->hflags |= HF_OSFXSR_MASK;
1580 }
1581
415e561f
FB		 1582 /* flags setup : we activate the IRQs by default as in user mode */
1583 env->eflags |= IF_MASK;
1584
6dbad63e 1585 /* linux register setup */
0ecfa993
FB		 1586 env->regs[R_EAX] = regs->eax;
1587 env->regs[R_EBX] = regs->ebx;
1588 env->regs[R_ECX] = regs->ecx;
1589 env->regs[R_EDX] = regs->edx;
1590 env->regs[R_ESI] = regs->esi;
1591 env->regs[R_EDI] = regs->edi;
1592 env->regs[R_EBP] = regs->ebp;
1593 env->regs[R_ESP] = regs->esp;
dab2ed99 1594 env->eip = regs->eip;
31e31b8a 1595
f4beb510 1596 /* linux interrupt setup */
53a5960a 1597 env->idt.base = h2g(idt_table);
f4beb510
FB		 1598 env->idt.limit = sizeof(idt_table) - 1;
1599 set_idt(0, 0);
1600 set_idt(1, 0);
1601 set_idt(2, 0);
1602 set_idt(3, 3);
1603 set_idt(4, 3);
1604 set_idt(5, 3);
1605 set_idt(6, 0);
1606 set_idt(7, 0);
1607 set_idt(8, 0);
1608 set_idt(9, 0);
1609 set_idt(10, 0);
1610 set_idt(11, 0);
1611 set_idt(12, 0);
1612 set_idt(13, 0);
1613 set_idt(14, 0);
1614 set_idt(15, 0);
1615 set_idt(16, 0);
1616 set_idt(17, 0);
1617 set_idt(18, 0);
1618 set_idt(19, 0);
1619 set_idt(0x80, 3);
1620
6dbad63e 1621 /* linux segment setup */
53a5960a 1622 env->gdt.base = h2g(gdt_table);
6dbad63e 1623 env->gdt.limit = sizeof(gdt_table) - 1;
f4beb510
FB		 1624 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
1625 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1626 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
1627 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
1628 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1629 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
6dbad63e
FB		 1630 cpu_x86_load_seg(env, R_CS, __USER_CS);
1631 cpu_x86_load_seg(env, R_DS, __USER_DS);
1632 cpu_x86_load_seg(env, R_ES, __USER_DS);
1633 cpu_x86_load_seg(env, R_SS, __USER_DS);
1634 cpu_x86_load_seg(env, R_FS, __USER_DS);
1635 cpu_x86_load_seg(env, R_GS, __USER_DS);
92ccca6a 1636
b346ff46
FB		 1637#elif defined(TARGET_ARM)
1638 {
1639 int i;
40f137e1 1640 cpu_arm_set_model(env, ARM_CPUID_ARM1026);
b5ff1b31 1641 cpsr_write(env, regs->uregs[16], 0xffffffff);
b346ff46
FB		 1642 for(i = 0; i < 16; i++) {
1643 env->regs[i] = regs->uregs[i];
1644 }
a4f81979
FB		 1645 ts->stack_base = info->start_stack;
1646 ts->heap_base = info->brk;
1647 /* This will be filled in on the first SYS_HEAPINFO call. */
1648 ts->heap_limit = 0;
b346ff46 1649 }
93ac68bc 1650#elif defined(TARGET_SPARC)
060366c5
FB		 1651 {
1652 int i;
1653 env->pc = regs->pc;
1654 env->npc = regs->npc;
1655 env->y = regs->y;
1656 for(i = 0; i < 8; i++)
1657 env->gregs[i] = regs->u_regs[i];
1658 for(i = 0; i < 8; i++)
1659 env->regwptr[i] = regs->u_regs[i + 8];
1660 }
67867308
FB		 1661#elif defined(TARGET_PPC)
1662 {
3fc6c082 1663 ppc_def_t *def;
67867308 1664 int i;
3fc6c082
FB		 1665
1666 /* Choose and initialise CPU */
1667 /* XXX: CPU model (or PVR) should be provided on command line */
1668 // ppc_find_by_name("750gx", &def);
1669 // ppc_find_by_name("750fx", &def);
1670 // ppc_find_by_name("750p", &def);
1671 ppc_find_by_name("750", &def);
1672 // ppc_find_by_name("G3", &def);
1673 // ppc_find_by_name("604r", &def);
1674 // ppc_find_by_name("604e", &def);
1675 // ppc_find_by_name("604", &def);
1676 if (def == NULL) {
c68ea704 1677 cpu_abort(env,
3fc6c082
FB		 1678 "Unable to find PowerPC CPU definition\n");
1679 }
c68ea704 1680 cpu_ppc_register(env, def);
3fc6c082 1681
61190b14 1682 for (i = 0; i < 32; i++) {
4c2e770f 1683 if (i != 12 && i != 6 && i != 13)
61190b14
FB		 1684 env->msr[i] = (regs->msr >> i) & 1;
1685 }
67867308
FB		 1686 env->nip = regs->nip;
1687 for(i = 0; i < 32; i++) {
1688 env->gpr[i] = regs->gpr[i];
1689 }
1690 }
048f6b4d
FB		 1691#elif defined(TARGET_MIPS)
1692 {
1693 int i;
1694
1695 for(i = 0; i < 32; i++) {
1696 env->gpr[i] = regs->regs[i];
1697 }
1698 env->PC = regs->cp0_epc;
1699 }
fdf9b3e8
FB		 1700#elif defined(TARGET_SH4)
1701 {
1702 int i;
1703
1704 for(i = 0; i < 16; i++) {
1705 env->gregs[i] = regs->regs[i];
1706 }
1707 env->pc = regs->pc;
1708 }
b346ff46
FB		 1709#else
1710#error unsupported target CPU
1711#endif
31e31b8a 1712
74c33bed
FB		 1713 if (gdbstub_port) {
1714 gdbserver_start (gdbstub_port);
1fddef4b
FB		 1715 gdb_handlesig(env, 0);
1716 }
1b6b029e
FB		 1717 cpu_loop(env);
1718 /* never exits */
31e31b8a
FB		 1719 return 0;
1720}
Qemu copy for testing