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sparc64 fixes (Blue Swirl)
[qemu.git] / linux-user / main.c
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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;
c5937220 37const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
586314f2 38
3a4739d6 39#if defined(__i386__) && !defined(CONFIG_STATIC)
f801f97e
FB		 40/* Force usage of an ELF interpreter even if it is an ELF shared
41 object ! */
42const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
4304763b 43#endif
74cd30b8 44
93ac68bc 45/* for recent libc, we add these dummy symbols which are not declared
74cd30b8 46 when generating a linked object (bug in ld ?) */
fbf59244 47#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC)
c6981055
FB		 48long __preinit_array_start[0];
49long __preinit_array_end[0];
74cd30b8
FB		 50long __init_array_start[0];
51long __init_array_end[0];
52long __fini_array_start[0];
53long __fini_array_end[0];
54#endif
55
9de5e440
FB		 56/* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
57 we allocate a bigger stack. Need a better solution, for example
58 by remapping the process stack directly at the right place */
59unsigned long x86_stack_size = 512 * 1024;
31e31b8a
FB		 60
61void gemu_log(const char *fmt, ...)
62{
63 va_list ap;
64
65 va_start(ap, fmt);
66 vfprintf(stderr, fmt, ap);
67 va_end(ap);
68}
69
61190b14 70void cpu_outb(CPUState *env, int addr, int val)
367e86e8
FB		 71{
72 fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
73}
74
61190b14 75void cpu_outw(CPUState *env, int addr, int val)
367e86e8
FB		 76{
77 fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
78}
79
61190b14 80void cpu_outl(CPUState *env, int addr, int val)
367e86e8
FB		 81{
82 fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
83}
84
61190b14 85int cpu_inb(CPUState *env, int addr)
367e86e8
FB		 86{
87 fprintf(stderr, "inb: port=0x%04x\n", addr);
88 return 0;
89}
90
61190b14 91int cpu_inw(CPUState *env, int addr)
367e86e8
FB		 92{
93 fprintf(stderr, "inw: port=0x%04x\n", addr);
94 return 0;
95}
96
61190b14 97int cpu_inl(CPUState *env, int addr)
367e86e8
FB		 98{
99 fprintf(stderr, "inl: port=0x%04x\n", addr);
100 return 0;
101}
102
a541f297 103int cpu_get_pic_interrupt(CPUState *env)
92ccca6a
FB		 104{
105 return -1;
106}
107
28ab0e2e
FB		 108/* timers for rdtsc */
109
1dce7c3c 110#if 0
28ab0e2e
FB		 111
112static uint64_t emu_time;
113
114int64_t cpu_get_real_ticks(void)
115{
116 return emu_time++;
117}
118
119#endif
120
a541f297
FB		 121#ifdef TARGET_I386
122/***********************************************************/
123/* CPUX86 core interface */
124
28ab0e2e
FB		 125uint64_t cpu_get_tsc(CPUX86State *env)
126{
127 return cpu_get_real_ticks();
128}
129
f4beb510
FB		 130static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
131 int flags)
6dbad63e 132{
f4beb510 133 unsigned int e1, e2;
53a5960a 134 uint32_t *p;
6dbad63e
FB		 135 e1 = (addr << 16) | (limit & 0xffff);
136 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
f4beb510 137 e2 |= flags;
53a5960a
PB		 138 p = ptr;
139 p[0] = tswapl(e1);
140 p[1] = tswapl(e2);
f4beb510
FB		 141}
142
143static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
144 unsigned long addr, unsigned int sel)
145{
146 unsigned int e1, e2;
53a5960a 147 uint32_t *p;
f4beb510
FB		 148 e1 = (addr & 0xffff) | (sel << 16);
149 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
53a5960a
PB		 150 p = ptr;
151 p[0] = tswapl(e1);
152 p[1] = tswapl(e2);
6dbad63e
FB		 153}
154
155uint64_t gdt_table[6];
f4beb510
FB		 156uint64_t idt_table[256];
157
158/* only dpl matters as we do only user space emulation */
159static void set_idt(int n, unsigned int dpl)
160{
161 set_gate(idt_table + n, 0, dpl, 0, 0);
162}
31e31b8a 163
89e957e7 164void cpu_loop(CPUX86State *env)
1b6b029e 165{
bc8a22cc 166 int trapnr;
80a9d035 167 target_ulong pc;
9de5e440 168 target_siginfo_t info;
851e67a1 169
1b6b029e 170 for(;;) {
bc8a22cc 171 trapnr = cpu_x86_exec(env);
bc8a22cc 172 switch(trapnr) {
f4beb510
FB		 173 case 0x80:
174 /* linux syscall */
175 env->regs[R_EAX] = do_syscall(env,
176 env->regs[R_EAX],
177 env->regs[R_EBX],
178 env->regs[R_ECX],
179 env->regs[R_EDX],
180 env->regs[R_ESI],
181 env->regs[R_EDI],
182 env->regs[R_EBP]);
183 break;
184 case EXCP0B_NOSEG:
185 case EXCP0C_STACK:
186 info.si_signo = SIGBUS;
187 info.si_errno = 0;
188 info.si_code = TARGET_SI_KERNEL;
189 info._sifields._sigfault._addr = 0;
190 queue_signal(info.si_signo, &info);
191 break;
1b6b029e 192 case EXCP0D_GPF:
851e67a1 193 if (env->eflags & VM_MASK) {
89e957e7 194 handle_vm86_fault(env);
1b6b029e 195 } else {
f4beb510
FB		 196 info.si_signo = SIGSEGV;
197 info.si_errno = 0;
198 info.si_code = TARGET_SI_KERNEL;
199 info._sifields._sigfault._addr = 0;
200 queue_signal(info.si_signo, &info);
1b6b029e
FB		 201 }
202 break;
b689bc57
FB		 203 case EXCP0E_PAGE:
204 info.si_signo = SIGSEGV;
205 info.si_errno = 0;
206 if (!(env->error_code & 1))
207 info.si_code = TARGET_SEGV_MAPERR;
208 else
209 info.si_code = TARGET_SEGV_ACCERR;
970a87a6 210 info._sifields._sigfault._addr = env->cr[2];
b689bc57
FB		 211 queue_signal(info.si_signo, &info);
212 break;
9de5e440 213 case EXCP00_DIVZ:
bc8a22cc 214 if (env->eflags & VM_MASK) {
447db213 215 handle_vm86_trap(env, trapnr);
bc8a22cc
FB		 216 } else {
217 /* division by zero */
218 info.si_signo = SIGFPE;
219 info.si_errno = 0;
220 info.si_code = TARGET_FPE_INTDIV;
221 info._sifields._sigfault._addr = env->eip;
222 queue_signal(info.si_signo, &info);
223 }
9de5e440 224 break;
447db213
FB		 225 case EXCP01_SSTP:
226 case EXCP03_INT3:
227 if (env->eflags & VM_MASK) {
228 handle_vm86_trap(env, trapnr);
229 } else {
230 info.si_signo = SIGTRAP;
231 info.si_errno = 0;
232 if (trapnr == EXCP01_SSTP) {
233 info.si_code = TARGET_TRAP_BRKPT;
234 info._sifields._sigfault._addr = env->eip;
235 } else {
236 info.si_code = TARGET_SI_KERNEL;
237 info._sifields._sigfault._addr = 0;
238 }
239 queue_signal(info.si_signo, &info);
240 }
241 break;
9de5e440
FB		 242 case EXCP04_INTO:
243 case EXCP05_BOUND:
bc8a22cc 244 if (env->eflags & VM_MASK) {
447db213 245 handle_vm86_trap(env, trapnr);
bc8a22cc
FB		 246 } else {
247 info.si_signo = SIGSEGV;
248 info.si_errno = 0;
b689bc57 249 info.si_code = TARGET_SI_KERNEL;
bc8a22cc
FB		 250 info._sifields._sigfault._addr = 0;
251 queue_signal(info.si_signo, &info);
252 }
9de5e440
FB		 253 break;
254 case EXCP06_ILLOP:
255 info.si_signo = SIGILL;
256 info.si_errno = 0;
257 info.si_code = TARGET_ILL_ILLOPN;
258 info._sifields._sigfault._addr = env->eip;
259 queue_signal(info.si_signo, &info);
260 break;
261 case EXCP_INTERRUPT:
262 /* just indicate that signals should be handled asap */
263 break;
1fddef4b
FB		 264 case EXCP_DEBUG:
265 {
266 int sig;
267
268 sig = gdb_handlesig (env, TARGET_SIGTRAP);
269 if (sig)
270 {
271 info.si_signo = sig;
272 info.si_errno = 0;
273 info.si_code = TARGET_TRAP_BRKPT;
274 queue_signal(info.si_signo, &info);
275 }
276 }
277 break;
1b6b029e 278 default:
970a87a6 279 pc = env->segs[R_CS].base + env->eip;
bc8a22cc
FB		 280 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
281 (long)pc, trapnr);
1b6b029e
FB		 282 abort();
283 }
66fb9763 284 process_pending_signals(env);
1b6b029e
FB		 285 }
286}
b346ff46
FB		 287#endif
288
289#ifdef TARGET_ARM
290
6f1f31c0
FB		 291/* XXX: find a better solution */
292extern void tb_invalidate_page_range(target_ulong start, target_ulong end);
293
294static void arm_cache_flush(target_ulong start, target_ulong last)
295{
296 target_ulong addr, last1;
297
298 if (last < start)
299 return;
300 addr = start;
301 for(;;) {
302 last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
303 if (last1 > last)
304 last1 = last;
305 tb_invalidate_page_range(addr, last1 + 1);
306 if (last1 == last)
307 break;
308 addr = last1 + 1;
309 }
310}
311
b346ff46
FB		 312void cpu_loop(CPUARMState *env)
313{
314 int trapnr;
315 unsigned int n, insn;
316 target_siginfo_t info;
b5ff1b31 317 uint32_t addr;
b346ff46
FB		 318
319 for(;;) {
320 trapnr = cpu_arm_exec(env);
321 switch(trapnr) {
322 case EXCP_UDEF:
c6981055
FB		 323 {
324 TaskState *ts = env->opaque;
325 uint32_t opcode;
326
327 /* we handle the FPU emulation here, as Linux */
328 /* we get the opcode */
53a5960a 329 opcode = tget32(env->regs[15]);
c6981055 330
19b045de 331 if (EmulateAll(opcode, &ts->fpa, env) == 0) {
c6981055
FB		 332 info.si_signo = SIGILL;
333 info.si_errno = 0;
334 info.si_code = TARGET_ILL_ILLOPN;
335 info._sifields._sigfault._addr = env->regs[15];
336 queue_signal(info.si_signo, &info);
337 } else {
338 /* increment PC */
339 env->regs[15] += 4;
340 }
341 }
b346ff46
FB		 342 break;
343 case EXCP_SWI:
06c949e6 344 case EXCP_BKPT:
b346ff46 345 {
ce4defa0 346 env->eabi = 1;
b346ff46 347 /* system call */
06c949e6
PB		 348 if (trapnr == EXCP_BKPT) {
349 if (env->thumb) {
53a5960a 350 insn = tget16(env->regs[15]);
06c949e6
PB		 351 n = insn & 0xff;
352 env->regs[15] += 2;
353 } else {
53a5960a 354 insn = tget32(env->regs[15]);
06c949e6
PB		 355 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
356 env->regs[15] += 4;
357 }
192c7bd9 358 } else {
06c949e6 359 if (env->thumb) {
53a5960a 360 insn = tget16(env->regs[15] - 2);
06c949e6
PB		 361 n = insn & 0xff;
362 } else {
53a5960a 363 insn = tget32(env->regs[15] - 4);
06c949e6
PB		 364 n = insn & 0xffffff;
365 }
192c7bd9
FB		 366 }
367
6f1f31c0
FB		 368 if (n == ARM_NR_cacheflush) {
369 arm_cache_flush(env->regs[0], env->regs[1]);
a4f81979
FB		 370 } else if (n == ARM_NR_semihosting
371 || n == ARM_NR_thumb_semihosting) {
372 env->regs[0] = do_arm_semihosting (env);
ce4defa0 373 } else if (n == 0 || n >= ARM_SYSCALL_BASE
192c7bd9 374 || (env->thumb && n == ARM_THUMB_SYSCALL)) {
b346ff46 375 /* linux syscall */
ce4defa0 376 if (env->thumb || n == 0) {
192c7bd9
FB		 377 n = env->regs[7];
378 } else {
379 n -= ARM_SYSCALL_BASE;
ce4defa0 380 env->eabi = 0;
192c7bd9 381 }
b346ff46
FB		 382 env->regs[0] = do_syscall(env,
383 n,
384 env->regs[0],
385 env->regs[1],
386 env->regs[2],
387 env->regs[3],
388 env->regs[4],
e1a2849c 389 env->regs[5]);
b346ff46
FB		 390 } else {
391 goto error;
392 }
393 }
394 break;
43fff238
FB		 395 case EXCP_INTERRUPT:
396 /* just indicate that signals should be handled asap */
397 break;
68016c62 398 case EXCP_PREFETCH_ABORT:
b5ff1b31
FB		 399 addr = env->cp15.c6_data;
400 goto do_segv;
68016c62 401 case EXCP_DATA_ABORT:
b5ff1b31
FB		 402 addr = env->cp15.c6_insn;
403 goto do_segv;
404 do_segv:
68016c62
FB		 405 {
406 info.si_signo = SIGSEGV;
407 info.si_errno = 0;
408 /* XXX: check env->error_code */
409 info.si_code = TARGET_SEGV_MAPERR;
b5ff1b31 410 info._sifields._sigfault._addr = addr;
68016c62
FB		 411 queue_signal(info.si_signo, &info);
412 }
413 break;
1fddef4b
FB		 414 case EXCP_DEBUG:
415 {
416 int sig;
417
418 sig = gdb_handlesig (env, TARGET_SIGTRAP);
419 if (sig)
420 {
421 info.si_signo = sig;
422 info.si_errno = 0;
423 info.si_code = TARGET_TRAP_BRKPT;
424 queue_signal(info.si_signo, &info);
425 }
426 }
427 break;
b346ff46
FB		 428 default:
429 error:
430 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
431 trapnr);
7fe48483 432 cpu_dump_state(env, stderr, fprintf, 0);
b346ff46
FB		 433 abort();
434 }
435 process_pending_signals(env);
436 }
437}
438
439#endif
1b6b029e 440
93ac68bc
FB		 441#ifdef TARGET_SPARC
442
060366c5
FB		 443//#define DEBUG_WIN
444
2623cbaf
FB		 445/* WARNING: dealing with register windows _is_ complicated. More info
446 can be found at http://www.sics.se/~psm/sparcstack.html */
060366c5
FB		 447static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
448{
449 index = (index + cwp * 16) & (16 * NWINDOWS - 1);
450 /* wrap handling : if cwp is on the last window, then we use the
451 registers 'after' the end */
452 if (index < 8 && env->cwp == (NWINDOWS - 1))
453 index += (16 * NWINDOWS);
454 return index;
455}
456
2623cbaf
FB		 457/* save the register window 'cwp1' */
458static inline void save_window_offset(CPUSPARCState *env, int cwp1)
060366c5 459{
2623cbaf 460 unsigned int i;
53a5960a 461 target_ulong sp_ptr;
060366c5 462
53a5960a 463 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
060366c5
FB		 464#if defined(DEBUG_WIN)
465 printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
466 (int)sp_ptr, cwp1);
467#endif
2623cbaf 468 for(i = 0; i < 16; i++) {
53a5960a
PB		 469 tputl(sp_ptr, env->regbase[get_reg_index(env, cwp1, 8 + i)]);
470 sp_ptr += sizeof(target_ulong);
2623cbaf 471 }
060366c5
FB		 472}
473
474static void save_window(CPUSPARCState *env)
475{
2623cbaf
FB		 476 unsigned int new_wim;
477 new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
478 ((1LL << NWINDOWS) - 1);
479 save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
480 env->wim = new_wim;
060366c5
FB		 481}
482
483static void restore_window(CPUSPARCState *env)
484{
485 unsigned int new_wim, i, cwp1;
53a5960a 486 target_ulong sp_ptr;
060366c5
FB		 487
488 new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
489 ((1LL << NWINDOWS) - 1);
490
491 /* restore the invalid window */
492 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
53a5960a 493 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
060366c5
FB		 494#if defined(DEBUG_WIN)
495 printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
496 (int)sp_ptr, cwp1);
497#endif
2623cbaf 498 for(i = 0; i < 16; i++) {
53a5960a
PB		 499 env->regbase[get_reg_index(env, cwp1, 8 + i)] = tgetl(sp_ptr);
500 sp_ptr += sizeof(target_ulong);
2623cbaf 501 }
060366c5
FB		 502 env->wim = new_wim;
503}
504
505static void flush_windows(CPUSPARCState *env)
506{
507 int offset, cwp1;
2623cbaf
FB		 508
509 offset = 1;
060366c5
FB		 510 for(;;) {
511 /* if restore would invoke restore_window(), then we can stop */
2623cbaf 512 cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
060366c5
FB		 513 if (env->wim & (1 << cwp1))
514 break;
2623cbaf 515 save_window_offset(env, cwp1);
060366c5
FB		 516 offset++;
517 }
2623cbaf
FB		 518 /* set wim so that restore will reload the registers */
519 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
520 env->wim = 1 << cwp1;
521#if defined(DEBUG_WIN)
522 printf("flush_windows: nb=%d\n", offset - 1);
80a9d035 523#endif
2623cbaf 524}
060366c5 525
93ac68bc
FB		 526void cpu_loop (CPUSPARCState *env)
527{
060366c5 528 int trapnr, ret;
61ff6f58 529 target_siginfo_t info;
060366c5
FB		 530
531 while (1) {
532 trapnr = cpu_sparc_exec (env);
533
534 switch (trapnr) {
535 case 0x88:
536 case 0x90:
537 ret = do_syscall (env, env->gregs[1],
538 env->regwptr[0], env->regwptr[1],
539 env->regwptr[2], env->regwptr[3],
540 env->regwptr[4], env->regwptr[5]);
541 if ((unsigned int)ret >= (unsigned int)(-515)) {
542 env->psr |= PSR_CARRY;
543 ret = -ret;
544 } else {
545 env->psr &= ~PSR_CARRY;
546 }
547 env->regwptr[0] = ret;
548 /* next instruction */
549 env->pc = env->npc;
550 env->npc = env->npc + 4;
551 break;
552 case 0x83: /* flush windows */
2623cbaf 553 flush_windows(env);
060366c5
FB		 554 /* next instruction */
555 env->pc = env->npc;
556 env->npc = env->npc + 4;
557 break;
3475187d 558#ifndef TARGET_SPARC64
060366c5
FB		 559 case TT_WIN_OVF: /* window overflow */
560 save_window(env);
561 break;
562 case TT_WIN_UNF: /* window underflow */
563 restore_window(env);
564 break;
61ff6f58
FB		 565 case TT_TFAULT:
566 case TT_DFAULT:
567 {
568 info.si_signo = SIGSEGV;
569 info.si_errno = 0;
570 /* XXX: check env->error_code */
571 info.si_code = TARGET_SEGV_MAPERR;
572 info._sifields._sigfault._addr = env->mmuregs[4];
573 queue_signal(info.si_signo, &info);
574 }
575 break;
3475187d
FB		 576#else
577 // XXX
578#endif
48dc41eb
FB		 579 case EXCP_INTERRUPT:
580 /* just indicate that signals should be handled asap */
581 break;
1fddef4b
FB		 582 case EXCP_DEBUG:
583 {
584 int sig;
585
586 sig = gdb_handlesig (env, TARGET_SIGTRAP);
587 if (sig)
588 {
589 info.si_signo = sig;
590 info.si_errno = 0;
591 info.si_code = TARGET_TRAP_BRKPT;
592 queue_signal(info.si_signo, &info);
593 }
594 }
595 break;
060366c5
FB		 596 default:
597 printf ("Unhandled trap: 0x%x\n", trapnr);
7fe48483 598 cpu_dump_state(env, stderr, fprintf, 0);
060366c5
FB		 599 exit (1);
600 }
601 process_pending_signals (env);
602 }
93ac68bc
FB		 603}
604
605#endif
606
67867308 607#ifdef TARGET_PPC
9fddaa0c
FB		 608
609static inline uint64_t cpu_ppc_get_tb (CPUState *env)
610{
611 /* TO FIX */
612 return 0;
613}
614
615uint32_t cpu_ppc_load_tbl (CPUState *env)
616{
617 return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
618}
619
620uint32_t cpu_ppc_load_tbu (CPUState *env)
621{
622 return cpu_ppc_get_tb(env) >> 32;
623}
624
625static void cpu_ppc_store_tb (CPUState *env, uint64_t value)
626{
627 /* TO FIX */
628}
629
630void cpu_ppc_store_tbu (CPUState *env, uint32_t value)
631{
632 cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env));
633}
634
635void cpu_ppc_store_tbl (CPUState *env, uint32_t value)
636{
637 cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value);
638}
639
640uint32_t cpu_ppc_load_decr (CPUState *env)
641{
642 /* TO FIX */
643 return -1;
644}
645
646void cpu_ppc_store_decr (CPUState *env, uint32_t value)
647{
648 /* TO FIX */
649}
650
67867308
FB		 651void cpu_loop(CPUPPCState *env)
652{
67867308 653 target_siginfo_t info;
61190b14
FB		 654 int trapnr;
655 uint32_t ret;
67867308
FB		 656
657 for(;;) {
658 trapnr = cpu_ppc_exec(env);
61190b14
FB		 659 if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
660 trapnr != EXCP_TRACE) {
661 if (loglevel > 0) {
7fe48483 662 cpu_dump_state(env, logfile, fprintf, 0);
61190b14
FB		 663 }
664 }
67867308
FB		 665 switch(trapnr) {
666 case EXCP_NONE:
67867308 667 break;
61190b14
FB		 668 case EXCP_SYSCALL_USER:
669 /* system call */
670 /* WARNING:
671 * PPC ABI uses overflow flag in cr0 to signal an error
672 * in syscalls.
673 */
67867308 674#if 0
61190b14
FB		 675 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
676 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
67867308 677#endif
61190b14
FB		 678 env->crf[0] &= ~0x1;
679 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
680 env->gpr[5], env->gpr[6], env->gpr[7],
681 env->gpr[8]);
682 if (ret > (uint32_t)(-515)) {
683 env->crf[0] |= 0x1;
684 ret = -ret;
685 }
686 env->gpr[3] = ret;
687#if 0
688 printf("syscall returned 0x%08x (%d)\n", ret, ret);
689#endif
690 break;
691 case EXCP_RESET:
692 /* Should not happen ! */
693 fprintf(stderr, "RESET asked... Stop emulation\n");
694 if (loglevel)
695 fprintf(logfile, "RESET asked... Stop emulation\n");
67867308 696 abort();
61190b14
FB		 697 case EXCP_MACHINE_CHECK:
698 fprintf(stderr, "Machine check exeption... Stop emulation\n");
699 if (loglevel)
700 fprintf(logfile, "RESET asked... Stop emulation\n");
701 info.si_signo = TARGET_SIGBUS;
67867308 702 info.si_errno = 0;
61190b14
FB		 703 info.si_code = TARGET_BUS_OBJERR;
704 info._sifields._sigfault._addr = env->nip - 4;
705 queue_signal(info.si_signo, &info);
706 case EXCP_DSI:
3fc6c082
FB		 707 fprintf(stderr, "Invalid data memory access: 0x%08x\n",
708 env->spr[SPR_DAR]);
61190b14
FB		 709 if (loglevel) {
710 fprintf(logfile, "Invalid data memory access: 0x%08x\n",
3fc6c082 711 env->spr[SPR_DAR]);
61190b14 712 }
2be0071f
FB		 713 switch (env->error_code & 0xFF000000) {
714 case 0x40000000:
61190b14
FB		 715 info.si_signo = TARGET_SIGSEGV;
716 info.si_errno = 0;
717 info.si_code = TARGET_SEGV_MAPERR;
718 break;
2be0071f 719 case 0x04000000:
61190b14
FB		 720 info.si_signo = TARGET_SIGILL;
721 info.si_errno = 0;
722 info.si_code = TARGET_ILL_ILLADR;
723 break;
2be0071f 724 case 0x08000000:
61190b14
FB		 725 info.si_signo = TARGET_SIGSEGV;
726 info.si_errno = 0;
727 info.si_code = TARGET_SEGV_ACCERR;
728 break;
61190b14
FB		 729 default:
730 /* Let's send a regular segfault... */
731 fprintf(stderr, "Invalid segfault errno (%02x)\n",
732 env->error_code);
733 if (loglevel) {
734 fprintf(logfile, "Invalid segfault errno (%02x)\n",
735 env->error_code);
736 }
737 info.si_signo = TARGET_SIGSEGV;
738 info.si_errno = 0;
739 info.si_code = TARGET_SEGV_MAPERR;
740 break;
741 }
67867308
FB		 742 info._sifields._sigfault._addr = env->nip;
743 queue_signal(info.si_signo, &info);
744 break;
61190b14 745 case EXCP_ISI:
67867308 746 fprintf(stderr, "Invalid instruction fetch\n");
61190b14
FB		 747 if (loglevel)
748 fprintf(logfile, "Invalid instruction fetch\n");
2be0071f
FB		 749 switch (env->error_code & 0xFF000000) {
750 case 0x40000000:
61190b14 751 info.si_signo = TARGET_SIGSEGV;
67867308 752 info.si_errno = 0;
61190b14
FB		 753 info.si_code = TARGET_SEGV_MAPERR;
754 break;
2be0071f
FB		 755 case 0x10000000:
756 case 0x08000000:
61190b14
FB		 757 info.si_signo = TARGET_SIGSEGV;
758 info.si_errno = 0;
759 info.si_code = TARGET_SEGV_ACCERR;
760 break;
761 default:
762 /* Let's send a regular segfault... */
763 fprintf(stderr, "Invalid segfault errno (%02x)\n",
764 env->error_code);
765 if (loglevel) {
766 fprintf(logfile, "Invalid segfault errno (%02x)\n",
767 env->error_code);
768 }
769 info.si_signo = TARGET_SIGSEGV;
770 info.si_errno = 0;
771 info.si_code = TARGET_SEGV_MAPERR;
772 break;
773 }
774 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 775 queue_signal(info.si_signo, &info);
776 break;
61190b14
FB		 777 case EXCP_EXTERNAL:
778 /* Should not happen ! */
779 fprintf(stderr, "External interruption... Stop emulation\n");
780 if (loglevel)
781 fprintf(logfile, "External interruption... Stop emulation\n");
67867308 782 abort();
61190b14
FB		 783 case EXCP_ALIGN:
784 fprintf(stderr, "Invalid unaligned memory access\n");
785 if (loglevel)
786 fprintf(logfile, "Invalid unaligned memory access\n");
787 info.si_signo = TARGET_SIGBUS;
67867308 788 info.si_errno = 0;
61190b14
FB		 789 info.si_code = TARGET_BUS_ADRALN;
790 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 791 queue_signal(info.si_signo, &info);
792 break;
61190b14
FB		 793 case EXCP_PROGRAM:
794 switch (env->error_code & ~0xF) {
795 case EXCP_FP:
796 fprintf(stderr, "Program exception\n");
797 if (loglevel)
798 fprintf(logfile, "Program exception\n");
799 /* Set FX */
800 env->fpscr[7] |= 0x8;
801 /* Finally, update FEX */
802 if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
803 ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
804 env->fpscr[7] |= 0x4;
805 info.si_signo = TARGET_SIGFPE;
806 info.si_errno = 0;
807 switch (env->error_code & 0xF) {
808 case EXCP_FP_OX:
809 info.si_code = TARGET_FPE_FLTOVF;
810 break;
811 case EXCP_FP_UX:
812 info.si_code = TARGET_FPE_FLTUND;
813 break;
814 case EXCP_FP_ZX:
815 case EXCP_FP_VXZDZ:
816 info.si_code = TARGET_FPE_FLTDIV;
817 break;
818 case EXCP_FP_XX:
819 info.si_code = TARGET_FPE_FLTRES;
820 break;
821 case EXCP_FP_VXSOFT:
822 info.si_code = TARGET_FPE_FLTINV;
823 break;
824 case EXCP_FP_VXNAN:
825 case EXCP_FP_VXISI:
826 case EXCP_FP_VXIDI:
827 case EXCP_FP_VXIMZ:
828 case EXCP_FP_VXVC:
829 case EXCP_FP_VXSQRT:
830 case EXCP_FP_VXCVI:
831 info.si_code = TARGET_FPE_FLTSUB;
832 break;
833 default:
834 fprintf(stderr, "Unknown floating point exception "
835 "(%02x)\n", env->error_code);
836 if (loglevel) {
837 fprintf(logfile, "Unknown floating point exception "
838 "(%02x)\n", env->error_code & 0xF);
839 }
840 }
841 break;
67867308 842 case EXCP_INVAL:
61190b14
FB		 843 fprintf(stderr, "Invalid instruction\n");
844 if (loglevel)
845 fprintf(logfile, "Invalid instruction\n");
846 info.si_signo = TARGET_SIGILL;
847 info.si_errno = 0;
848 switch (env->error_code & 0xF) {
849 case EXCP_INVAL_INVAL:
850 info.si_code = TARGET_ILL_ILLOPC;
851 break;
852 case EXCP_INVAL_LSWX:
67867308 853 info.si_code = TARGET_ILL_ILLOPN;
61190b14
FB		 854 break;
855 case EXCP_INVAL_SPR:
856 info.si_code = TARGET_ILL_PRVREG;
857 break;
858 case EXCP_INVAL_FP:
859 info.si_code = TARGET_ILL_COPROC;
860 break;
861 default:
862 fprintf(stderr, "Unknown invalid operation (%02x)\n",
863 env->error_code & 0xF);
864 if (loglevel) {
865 fprintf(logfile, "Unknown invalid operation (%02x)\n",
866 env->error_code & 0xF);
867 }
868 info.si_code = TARGET_ILL_ILLADR;
869 break;
870 }
871 break;
872 case EXCP_PRIV:
873 fprintf(stderr, "Privilege violation\n");
874 if (loglevel)
875 fprintf(logfile, "Privilege violation\n");
876 info.si_signo = TARGET_SIGILL;
877 info.si_errno = 0;
878 switch (env->error_code & 0xF) {
879 case EXCP_PRIV_OPC:
880 info.si_code = TARGET_ILL_PRVOPC;
881 break;
882 case EXCP_PRIV_REG:
883 info.si_code = TARGET_ILL_PRVREG;
884 break;
885 default:
886 fprintf(stderr, "Unknown privilege violation (%02x)\n",
887 env->error_code & 0xF);
888 info.si_code = TARGET_ILL_PRVOPC;
889 break;
890 }
891 break;
892 case EXCP_TRAP:
893 fprintf(stderr, "Tried to call a TRAP\n");
894 if (loglevel)
895 fprintf(logfile, "Tried to call a TRAP\n");
896 abort();
897 default:
898 /* Should not happen ! */
899 fprintf(stderr, "Unknown program exception (%02x)\n",
900 env->error_code);
901 if (loglevel) {
902 fprintf(logfile, "Unknwon program exception (%02x)\n",
903 env->error_code);
904 }
905 abort();
906 }
907 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 908 queue_signal(info.si_signo, &info);
909 break;
61190b14
FB		 910 case EXCP_NO_FP:
911 fprintf(stderr, "No floating point allowed\n");
912 if (loglevel)
913 fprintf(logfile, "No floating point allowed\n");
914 info.si_signo = TARGET_SIGILL;
67867308 915 info.si_errno = 0;
61190b14
FB		 916 info.si_code = TARGET_ILL_COPROC;
917 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 918 queue_signal(info.si_signo, &info);
919 break;
61190b14
FB		 920 case EXCP_DECR:
921 /* Should not happen ! */
922 fprintf(stderr, "Decrementer exception\n");
923 if (loglevel)
924 fprintf(logfile, "Decrementer exception\n");
925 abort();
61190b14
FB		 926 case EXCP_TRACE:
927 /* Do nothing: we use this to trace execution */
67867308 928 break;
61190b14
FB		 929 case EXCP_FP_ASSIST:
930 /* Should not happen ! */
931 fprintf(stderr, "Floating point assist exception\n");
932 if (loglevel)
933 fprintf(logfile, "Floating point assist exception\n");
934 abort();
935 case EXCP_MTMSR:
936 /* We reloaded the msr, just go on */
9fddaa0c 937 if (msr_pr == 0) {
61190b14
FB		 938 fprintf(stderr, "Tried to go into supervisor mode !\n");
939 if (loglevel)
940 fprintf(logfile, "Tried to go into supervisor mode !\n");
941 abort();
67867308 942 }
61190b14
FB		 943 break;
944 case EXCP_BRANCH:
945 /* We stopped because of a jump... */
946 break;
61190b14
FB		 947 case EXCP_INTERRUPT:
948 /* Don't know why this should ever happen... */
949 break;
1fddef4b
FB		 950 case EXCP_DEBUG:
951 {
952 int sig;
953
954 sig = gdb_handlesig (env, TARGET_SIGTRAP);
955 if (sig)
956 {
957 info.si_signo = sig;
958 info.si_errno = 0;
959 info.si_code = TARGET_TRAP_BRKPT;
960 queue_signal(info.si_signo, &info);
961 }
962 }
963 break;
67867308 964 default:
67867308
FB		 965 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
966 trapnr);
61190b14
FB		 967 if (loglevel) {
968 fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
969 "0x%02x - aborting\n", trapnr, env->error_code);
970 }
67867308
FB		 971 abort();
972 }
973 process_pending_signals(env);
974 }
975}
976#endif
977
048f6b4d
FB		 978#ifdef TARGET_MIPS
979
980#define MIPS_SYS(name, args) args,
981
982static const uint8_t mips_syscall_args[] = {
983 MIPS_SYS(sys_syscall , 0) /* 4000 */
984 MIPS_SYS(sys_exit , 1)
985 MIPS_SYS(sys_fork , 0)
986 MIPS_SYS(sys_read , 3)
987 MIPS_SYS(sys_write , 3)
988 MIPS_SYS(sys_open , 3) /* 4005 */
989 MIPS_SYS(sys_close , 1)
990 MIPS_SYS(sys_waitpid , 3)
991 MIPS_SYS(sys_creat , 2)
992 MIPS_SYS(sys_link , 2)
993 MIPS_SYS(sys_unlink , 1) /* 4010 */
994 MIPS_SYS(sys_execve , 0)
995 MIPS_SYS(sys_chdir , 1)
996 MIPS_SYS(sys_time , 1)
997 MIPS_SYS(sys_mknod , 3)
998 MIPS_SYS(sys_chmod , 2) /* 4015 */
999 MIPS_SYS(sys_lchown , 3)
1000 MIPS_SYS(sys_ni_syscall , 0)
1001 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1002 MIPS_SYS(sys_lseek , 3)
1003 MIPS_SYS(sys_getpid , 0) /* 4020 */
1004 MIPS_SYS(sys_mount , 5)
1005 MIPS_SYS(sys_oldumount , 1)
1006 MIPS_SYS(sys_setuid , 1)
1007 MIPS_SYS(sys_getuid , 0)
1008 MIPS_SYS(sys_stime , 1) /* 4025 */
1009 MIPS_SYS(sys_ptrace , 4)
1010 MIPS_SYS(sys_alarm , 1)
1011 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1012 MIPS_SYS(sys_pause , 0)
1013 MIPS_SYS(sys_utime , 2) /* 4030 */
1014 MIPS_SYS(sys_ni_syscall , 0)
1015 MIPS_SYS(sys_ni_syscall , 0)
1016 MIPS_SYS(sys_access , 2)
1017 MIPS_SYS(sys_nice , 1)
1018 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1019 MIPS_SYS(sys_sync , 0)
1020 MIPS_SYS(sys_kill , 2)
1021 MIPS_SYS(sys_rename , 2)
1022 MIPS_SYS(sys_mkdir , 2)
1023 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1024 MIPS_SYS(sys_dup , 1)
1025 MIPS_SYS(sys_pipe , 0)
1026 MIPS_SYS(sys_times , 1)
1027 MIPS_SYS(sys_ni_syscall , 0)
1028 MIPS_SYS(sys_brk , 1) /* 4045 */
1029 MIPS_SYS(sys_setgid , 1)
1030 MIPS_SYS(sys_getgid , 0)
1031 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1032 MIPS_SYS(sys_geteuid , 0)
1033 MIPS_SYS(sys_getegid , 0) /* 4050 */
1034 MIPS_SYS(sys_acct , 0)
1035 MIPS_SYS(sys_umount , 2)
1036 MIPS_SYS(sys_ni_syscall , 0)
1037 MIPS_SYS(sys_ioctl , 3)
1038 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1039 MIPS_SYS(sys_ni_syscall , 2)
1040 MIPS_SYS(sys_setpgid , 2)
1041 MIPS_SYS(sys_ni_syscall , 0)
1042 MIPS_SYS(sys_olduname , 1)
1043 MIPS_SYS(sys_umask , 1) /* 4060 */
1044 MIPS_SYS(sys_chroot , 1)
1045 MIPS_SYS(sys_ustat , 2)
1046 MIPS_SYS(sys_dup2 , 2)
1047 MIPS_SYS(sys_getppid , 0)
1048 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1049 MIPS_SYS(sys_setsid , 0)
1050 MIPS_SYS(sys_sigaction , 3)
1051 MIPS_SYS(sys_sgetmask , 0)
1052 MIPS_SYS(sys_ssetmask , 1)
1053 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1054 MIPS_SYS(sys_setregid , 2)
1055 MIPS_SYS(sys_sigsuspend , 0)
1056 MIPS_SYS(sys_sigpending , 1)
1057 MIPS_SYS(sys_sethostname , 2)
1058 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1059 MIPS_SYS(sys_getrlimit , 2)
1060 MIPS_SYS(sys_getrusage , 2)
1061 MIPS_SYS(sys_gettimeofday, 2)
1062 MIPS_SYS(sys_settimeofday, 2)
1063 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1064 MIPS_SYS(sys_setgroups , 2)
1065 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1066 MIPS_SYS(sys_symlink , 2)
1067 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1068 MIPS_SYS(sys_readlink , 3) /* 4085 */
1069 MIPS_SYS(sys_uselib , 1)
1070 MIPS_SYS(sys_swapon , 2)
1071 MIPS_SYS(sys_reboot , 3)
1072 MIPS_SYS(old_readdir , 3)
1073 MIPS_SYS(old_mmap , 6) /* 4090 */
1074 MIPS_SYS(sys_munmap , 2)
1075 MIPS_SYS(sys_truncate , 2)
1076 MIPS_SYS(sys_ftruncate , 2)
1077 MIPS_SYS(sys_fchmod , 2)
1078 MIPS_SYS(sys_fchown , 3) /* 4095 */
1079 MIPS_SYS(sys_getpriority , 2)
1080 MIPS_SYS(sys_setpriority , 3)
1081 MIPS_SYS(sys_ni_syscall , 0)
1082 MIPS_SYS(sys_statfs , 2)
1083 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1084 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1085 MIPS_SYS(sys_socketcall , 2)
1086 MIPS_SYS(sys_syslog , 3)
1087 MIPS_SYS(sys_setitimer , 3)
1088 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1089 MIPS_SYS(sys_newstat , 2)
1090 MIPS_SYS(sys_newlstat , 2)
1091 MIPS_SYS(sys_newfstat , 2)
1092 MIPS_SYS(sys_uname , 1)
1093 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1094 MIPS_SYS(sys_vhangup , 0)
1095 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1096 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1097 MIPS_SYS(sys_wait4 , 4)
1098 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1099 MIPS_SYS(sys_sysinfo , 1)
1100 MIPS_SYS(sys_ipc , 6)
1101 MIPS_SYS(sys_fsync , 1)
1102 MIPS_SYS(sys_sigreturn , 0)
1103 MIPS_SYS(sys_clone , 0) /* 4120 */
1104 MIPS_SYS(sys_setdomainname, 2)
1105 MIPS_SYS(sys_newuname , 1)
1106 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1107 MIPS_SYS(sys_adjtimex , 1)
1108 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1109 MIPS_SYS(sys_sigprocmask , 3)
1110 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1111 MIPS_SYS(sys_init_module , 5)
1112 MIPS_SYS(sys_delete_module, 1)
1113 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1114 MIPS_SYS(sys_quotactl , 0)
1115 MIPS_SYS(sys_getpgid , 1)
1116 MIPS_SYS(sys_fchdir , 1)
1117 MIPS_SYS(sys_bdflush , 2)
1118 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1119 MIPS_SYS(sys_personality , 1)
1120 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1121 MIPS_SYS(sys_setfsuid , 1)
1122 MIPS_SYS(sys_setfsgid , 1)
1123 MIPS_SYS(sys_llseek , 5) /* 4140 */
1124 MIPS_SYS(sys_getdents , 3)
1125 MIPS_SYS(sys_select , 5)
1126 MIPS_SYS(sys_flock , 2)
1127 MIPS_SYS(sys_msync , 3)
1128 MIPS_SYS(sys_readv , 3) /* 4145 */
1129 MIPS_SYS(sys_writev , 3)
1130 MIPS_SYS(sys_cacheflush , 3)
1131 MIPS_SYS(sys_cachectl , 3)
1132 MIPS_SYS(sys_sysmips , 4)
1133 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1134 MIPS_SYS(sys_getsid , 1)
1135 MIPS_SYS(sys_fdatasync , 0)
1136 MIPS_SYS(sys_sysctl , 1)
1137 MIPS_SYS(sys_mlock , 2)
1138 MIPS_SYS(sys_munlock , 2) /* 4155 */
1139 MIPS_SYS(sys_mlockall , 1)
1140 MIPS_SYS(sys_munlockall , 0)
1141 MIPS_SYS(sys_sched_setparam, 2)
1142 MIPS_SYS(sys_sched_getparam, 2)
1143 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1144 MIPS_SYS(sys_sched_getscheduler, 1)
1145 MIPS_SYS(sys_sched_yield , 0)
1146 MIPS_SYS(sys_sched_get_priority_max, 1)
1147 MIPS_SYS(sys_sched_get_priority_min, 1)
1148 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1149 MIPS_SYS(sys_nanosleep, 2)
1150 MIPS_SYS(sys_mremap , 4)
1151 MIPS_SYS(sys_accept , 3)
1152 MIPS_SYS(sys_bind , 3)
1153 MIPS_SYS(sys_connect , 3) /* 4170 */
1154 MIPS_SYS(sys_getpeername , 3)
1155 MIPS_SYS(sys_getsockname , 3)
1156 MIPS_SYS(sys_getsockopt , 5)
1157 MIPS_SYS(sys_listen , 2)
1158 MIPS_SYS(sys_recv , 4) /* 4175 */
1159 MIPS_SYS(sys_recvfrom , 6)
1160 MIPS_SYS(sys_recvmsg , 3)
1161 MIPS_SYS(sys_send , 4)
1162 MIPS_SYS(sys_sendmsg , 3)
1163 MIPS_SYS(sys_sendto , 6) /* 4180 */
1164 MIPS_SYS(sys_setsockopt , 5)
1165 MIPS_SYS(sys_shutdown , 2)
1166 MIPS_SYS(sys_socket , 3)
1167 MIPS_SYS(sys_socketpair , 4)
1168 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1169 MIPS_SYS(sys_getresuid , 3)
1170 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1171 MIPS_SYS(sys_poll , 3)
1172 MIPS_SYS(sys_nfsservctl , 3)
1173 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1174 MIPS_SYS(sys_getresgid , 3)
1175 MIPS_SYS(sys_prctl , 5)
1176 MIPS_SYS(sys_rt_sigreturn, 0)
1177 MIPS_SYS(sys_rt_sigaction, 4)
1178 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1179 MIPS_SYS(sys_rt_sigpending, 2)
1180 MIPS_SYS(sys_rt_sigtimedwait, 4)
1181 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1182 MIPS_SYS(sys_rt_sigsuspend, 0)
1183 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1184 MIPS_SYS(sys_pwrite64 , 6)
1185 MIPS_SYS(sys_chown , 3)
1186 MIPS_SYS(sys_getcwd , 2)
1187 MIPS_SYS(sys_capget , 2)
1188 MIPS_SYS(sys_capset , 2) /* 4205 */
1189 MIPS_SYS(sys_sigaltstack , 0)
1190 MIPS_SYS(sys_sendfile , 4)
1191 MIPS_SYS(sys_ni_syscall , 0)
1192 MIPS_SYS(sys_ni_syscall , 0)
1193 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1194 MIPS_SYS(sys_truncate64 , 4)
1195 MIPS_SYS(sys_ftruncate64 , 4)
1196 MIPS_SYS(sys_stat64 , 2)
1197 MIPS_SYS(sys_lstat64 , 2)
1198 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1199 MIPS_SYS(sys_pivot_root , 2)
1200 MIPS_SYS(sys_mincore , 3)
1201 MIPS_SYS(sys_madvise , 3)
1202 MIPS_SYS(sys_getdents64 , 3)
1203 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1204 MIPS_SYS(sys_ni_syscall , 0)
1205 MIPS_SYS(sys_gettid , 0)
1206 MIPS_SYS(sys_readahead , 5)
1207 MIPS_SYS(sys_setxattr , 5)
1208 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1209 MIPS_SYS(sys_fsetxattr , 5)
1210 MIPS_SYS(sys_getxattr , 4)
1211 MIPS_SYS(sys_lgetxattr , 4)
1212 MIPS_SYS(sys_fgetxattr , 4)
1213 MIPS_SYS(sys_listxattr , 3) /* 4230 */
1214 MIPS_SYS(sys_llistxattr , 3)
1215 MIPS_SYS(sys_flistxattr , 3)
1216 MIPS_SYS(sys_removexattr , 2)
1217 MIPS_SYS(sys_lremovexattr, 2)
1218 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1219 MIPS_SYS(sys_tkill , 2)
1220 MIPS_SYS(sys_sendfile64 , 5)
1221 MIPS_SYS(sys_futex , 2)
1222 MIPS_SYS(sys_sched_setaffinity, 3)
1223 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1224 MIPS_SYS(sys_io_setup , 2)
1225 MIPS_SYS(sys_io_destroy , 1)
1226 MIPS_SYS(sys_io_getevents, 5)
1227 MIPS_SYS(sys_io_submit , 3)
1228 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1229 MIPS_SYS(sys_exit_group , 1)
1230 MIPS_SYS(sys_lookup_dcookie, 3)
1231 MIPS_SYS(sys_epoll_create, 1)
1232 MIPS_SYS(sys_epoll_ctl , 4)
1233 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1234 MIPS_SYS(sys_remap_file_pages, 5)
1235 MIPS_SYS(sys_set_tid_address, 1)
1236 MIPS_SYS(sys_restart_syscall, 0)
1237 MIPS_SYS(sys_fadvise64_64, 7)
1238 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1239 MIPS_SYS(sys_fstatfs64 , 2)
1240 MIPS_SYS(sys_timer_create, 3)
1241 MIPS_SYS(sys_timer_settime, 4)
1242 MIPS_SYS(sys_timer_gettime, 2)
1243 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1244 MIPS_SYS(sys_timer_delete, 1)
1245 MIPS_SYS(sys_clock_settime, 2)
1246 MIPS_SYS(sys_clock_gettime, 2)
1247 MIPS_SYS(sys_clock_getres, 2)
1248 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1249 MIPS_SYS(sys_tgkill , 3)
1250 MIPS_SYS(sys_utimes , 2)
1251 MIPS_SYS(sys_mbind , 4)
1252 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1253 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1254 MIPS_SYS(sys_mq_open , 4)
1255 MIPS_SYS(sys_mq_unlink , 1)
1256 MIPS_SYS(sys_mq_timedsend, 5)
1257 MIPS_SYS(sys_mq_timedreceive, 5)
1258 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1259 MIPS_SYS(sys_mq_getsetattr, 3)
1260 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1261 MIPS_SYS(sys_waitid , 4)
1262 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1263 MIPS_SYS(sys_add_key , 5)
1264 MIPS_SYS(sys_request_key , 4)
1265 MIPS_SYS(sys_keyctl , 5)
1266};
1267
1268#undef MIPS_SYS
1269
1270void cpu_loop(CPUMIPSState *env)
1271{
1272 target_siginfo_t info;
1273 int trapnr, ret, nb_args;
1274 unsigned int syscall_num;
1275 target_ulong arg5, arg6, sp_reg;
1276
1277 for(;;) {
1278 trapnr = cpu_mips_exec(env);
1279 switch(trapnr) {
1280 case EXCP_SYSCALL:
1281 {
1282 syscall_num = env->gpr[2] - 4000;
106ec879 1283 env->PC += 4;
048f6b4d
FB		 1284 if (syscall_num >= sizeof(mips_syscall_args)) {
1285 ret = -ENOSYS;
1286 } else {
1287 nb_args = mips_syscall_args[syscall_num];
1288 if (nb_args >= 5) {
1289 sp_reg = env->gpr[29];
1290 /* these arguments are taken from the stack */
53a5960a 1291 arg5 = tgetl(sp_reg + 16);
048f6b4d 1292 if (nb_args >= 6) {
53a5960a 1293 arg6 = tgetl(sp_reg + 20);
048f6b4d
FB		 1294 } else {
1295 arg6 = 0;
1296 }
1297 } else {
1298 arg5 = 0;
1299 arg6 = 0;
1300 }
1301 ret = do_syscall(env,
1302 env->gpr[2],
1303 env->gpr[4],
1304 env->gpr[5],
1305 env->gpr[6],
1306 env->gpr[7],
1307 arg5,
1308 arg6);
1309 }
048f6b4d
FB		 1310 if ((unsigned int)ret >= (unsigned int)(-1133)) {
1311 env->gpr[7] = 1; /* error flag */
1312 ret = -ret;
1313 env->gpr[0] = ret;
1314 env->gpr[2] = ret;
1315 } else {
1316 env->gpr[7] = 0; /* error flag */
1317 env->gpr[2] = ret;
1318 }
1319 }
1320 break;
6900e84b 1321 case EXCP_CpU:
048f6b4d 1322 case EXCP_RI:
bc1ad2de
FB		 1323 info.si_signo = TARGET_SIGILL;
1324 info.si_errno = 0;
1325 info.si_code = 0;
1326 queue_signal(info.si_signo, &info);
048f6b4d 1327 break;
106ec879
FB		 1328 case EXCP_INTERRUPT:
1329 /* just indicate that signals should be handled asap */
1330 break;
048f6b4d
FB		 1331 default:
1332 // error:
1333 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1334 trapnr);
1335 cpu_dump_state(env, stderr, fprintf, 0);
1336 abort();
1337 }
1338 process_pending_signals(env);
1339 }
1340}
1341#endif
1342
fdf9b3e8
FB		 1343#ifdef TARGET_SH4
1344void cpu_loop (CPUState *env)
1345{
1346 int trapnr, ret;
355fb23d 1347 target_siginfo_t info;
fdf9b3e8
FB		 1348
1349 while (1) {
1350 trapnr = cpu_sh4_exec (env);
1351
1352 switch (trapnr) {
1353 case 0x160:
1354 ret = do_syscall(env,
9c2a9ea1
PB		 1355 env->gregs[3],
1356 env->gregs[4],
1357 env->gregs[5],
1358 env->gregs[6],
1359 env->gregs[7],
1360 env->gregs[0],
fdf9b3e8 1361 0);
9c2a9ea1 1362 env->gregs[0] = ret;
fdf9b3e8
FB		 1363 env->pc += 2;
1364 break;
355fb23d
PB		 1365 case EXCP_DEBUG:
1366 {
1367 int sig;
1368
1369 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1370 if (sig)
1371 {
1372 info.si_signo = sig;
1373 info.si_errno = 0;
1374 info.si_code = TARGET_TRAP_BRKPT;
1375 queue_signal(info.si_signo, &info);
1376 }
1377 }
1378 break;
fdf9b3e8
FB		 1379 default:
1380 printf ("Unhandled trap: 0x%x\n", trapnr);
1381 cpu_dump_state(env, stderr, fprintf, 0);
1382 exit (1);
1383 }
1384 process_pending_signals (env);
1385 }
1386}
1387#endif
1388
31e31b8a
FB		 1389void usage(void)
1390{
f5a8510c 1391 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2005 Fabrice Bellard\n"
1fddef4b 1392 "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] program [arguments...]\n"
b346ff46 1393 "Linux CPU emulator (compiled for %s emulation)\n"
d691f669 1394 "\n"
54936004 1395 "-h print this help\n"
74c33bed 1396 "-g port wait gdb connection to port\n"
b346ff46
FB		 1397 "-L path set the elf interpreter prefix (default=%s)\n"
1398 "-s size set the stack size in bytes (default=%ld)\n"
54936004
FB		 1399 "\n"
1400 "debug options:\n"
c6981055
FB		 1401#ifdef USE_CODE_COPY
1402 "-no-code-copy disable code copy acceleration\n"
1403#endif
6f1f31c0 1404 "-d options activate log (logfile=%s)\n"
54936004 1405 "-p pagesize set the host page size to 'pagesize'\n",
b346ff46 1406 TARGET_ARCH,
d691f669 1407 interp_prefix,
54936004
FB		 1408 x86_stack_size,
1409 DEBUG_LOGFILE);
74cd30b8 1410 _exit(1);
31e31b8a
FB		 1411}
1412
9de5e440 1413/* XXX: currently only used for async signals (see signal.c) */
b346ff46 1414CPUState *global_env;
59faf6d6 1415
851e67a1
FB		 1416/* used to free thread contexts */
1417TaskState *first_task_state;
9de5e440 1418
31e31b8a
FB		 1419int main(int argc, char **argv)
1420{
1421 const char *filename;
01ffc75b 1422 struct target_pt_regs regs1, *regs = &regs1;
31e31b8a 1423 struct image_info info1, *info = &info1;
851e67a1 1424 TaskState ts1, *ts = &ts1;
b346ff46 1425 CPUState *env;
586314f2 1426 int optind;
d691f669 1427 const char *r;
74c33bed 1428 int gdbstub_port = 0;
d691f669 1429
31e31b8a
FB		 1430 if (argc <= 1)
1431 usage();
f801f97e 1432
cc38b844
FB		 1433 /* init debug */
1434 cpu_set_log_filename(DEBUG_LOGFILE);
1435
586314f2 1436 optind = 1;
d691f669
FB		 1437 for(;;) {
1438 if (optind >= argc)
1439 break;
1440 r = argv[optind];
1441 if (r[0] != '-')
1442 break;
586314f2 1443 optind++;
d691f669
FB		 1444 r++;
1445 if (!strcmp(r, "-")) {
1446 break;
1447 } else if (!strcmp(r, "d")) {
e19e89a5
FB		 1448 int mask;
1449 CPULogItem *item;
6f1f31c0
FB		 1450
1451 if (optind >= argc)
1452 break;
e19e89a5 1453
6f1f31c0
FB		 1454 r = argv[optind++];
1455 mask = cpu_str_to_log_mask(r);
e19e89a5
FB		 1456 if (!mask) {
1457 printf("Log items (comma separated):\n");
1458 for(item = cpu_log_items; item->mask != 0; item++) {
1459 printf("%-10s %s\n", item->name, item->help);
1460 }
1461 exit(1);
1462 }
1463 cpu_set_log(mask);
d691f669
FB		 1464 } else if (!strcmp(r, "s")) {
1465 r = argv[optind++];
1466 x86_stack_size = strtol(r, (char **)&r, 0);
1467 if (x86_stack_size <= 0)
1468 usage();
1469 if (*r == 'M')
1470 x86_stack_size *= 1024 * 1024;
1471 else if (*r == 'k' || *r == 'K')
1472 x86_stack_size *= 1024;
1473 } else if (!strcmp(r, "L")) {
1474 interp_prefix = argv[optind++];
54936004 1475 } else if (!strcmp(r, "p")) {
83fb7adf
FB		 1476 qemu_host_page_size = atoi(argv[optind++]);
1477 if (qemu_host_page_size == 0 ||
1478 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
54936004
FB		 1479 fprintf(stderr, "page size must be a power of two\n");
1480 exit(1);
1481 }
1fddef4b 1482 } else if (!strcmp(r, "g")) {
74c33bed 1483 gdbstub_port = atoi(argv[optind++]);
c5937220
PB		 1484 } else if (!strcmp(r, "r")) {
1485 qemu_uname_release = argv[optind++];
c6981055
FB		 1486 } else
1487#ifdef USE_CODE_COPY
1488 if (!strcmp(r, "no-code-copy")) {
1489 code_copy_enabled = 0;
1490 } else
1491#endif
1492 {
d691f669
FB		 1493 usage();
1494 }
586314f2 1495 }
d691f669
FB		 1496 if (optind >= argc)
1497 usage();
586314f2
FB		 1498 filename = argv[optind];
1499
31e31b8a 1500 /* Zero out regs */
01ffc75b 1501 memset(regs, 0, sizeof(struct target_pt_regs));
31e31b8a
FB		 1502
1503 /* Zero out image_info */
1504 memset(info, 0, sizeof(struct image_info));
1505
74cd30b8
FB		 1506 /* Scan interp_prefix dir for replacement files. */
1507 init_paths(interp_prefix);
1508
83fb7adf
FB		 1509 /* NOTE: we need to init the CPU at this stage to get
1510 qemu_host_page_size */
b346ff46 1511 env = cpu_init();
15338fd7 1512 global_env = env;
92ccca6a 1513
e5fe0c52 1514 if (loader_exec(filename, argv+optind, environ, regs, info) != 0) {
31e31b8a 1515 printf("Error loading %s\n", filename);
74cd30b8 1516 _exit(1);
31e31b8a
FB		 1517 }
1518
4b74fe1f 1519 if (loglevel) {
54936004
FB		 1520 page_dump(logfile);
1521
4b74fe1f
FB		 1522 fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk);
1523 fprintf(logfile, "end_code 0x%08lx\n" , info->end_code);
1524 fprintf(logfile, "start_code 0x%08lx\n" , info->start_code);
e5fe0c52 1525 fprintf(logfile, "start_data 0x%08lx\n" , info->start_data);
4b74fe1f
FB		 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 1531
53a5960a 1532 target_set_brk(info->brk);
31e31b8a 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;
978efd6a 1540 ts->info = info;
59faf6d6 1541 env->user_mode_only = 1;
851e67a1 1542
b346ff46 1543#if defined(TARGET_I386)
2e255c6b
FB		 1544 cpu_x86_set_cpl(env, 3);
1545
3802ce26 1546 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
1bde465e
FB		 1547 env->hflags |= HF_PE_MASK;
1548 if (env->cpuid_features & CPUID_SSE) {
1549 env->cr[4] |= CR4_OSFXSR_MASK;
1550 env->hflags |= HF_OSFXSR_MASK;
1551 }
1552
415e561f
FB		 1553 /* flags setup : we activate the IRQs by default as in user mode */
1554 env->eflags |= IF_MASK;
1555
6dbad63e 1556 /* linux register setup */
0ecfa993
FB		 1557 env->regs[R_EAX] = regs->eax;
1558 env->regs[R_EBX] = regs->ebx;
1559 env->regs[R_ECX] = regs->ecx;
1560 env->regs[R_EDX] = regs->edx;
1561 env->regs[R_ESI] = regs->esi;
1562 env->regs[R_EDI] = regs->edi;
1563 env->regs[R_EBP] = regs->ebp;
1564 env->regs[R_ESP] = regs->esp;
dab2ed99 1565 env->eip = regs->eip;
31e31b8a 1566
f4beb510 1567 /* linux interrupt setup */
53a5960a 1568 env->idt.base = h2g(idt_table);
f4beb510
FB		 1569 env->idt.limit = sizeof(idt_table) - 1;
1570 set_idt(0, 0);
1571 set_idt(1, 0);
1572 set_idt(2, 0);
1573 set_idt(3, 3);
1574 set_idt(4, 3);
1575 set_idt(5, 3);
1576 set_idt(6, 0);
1577 set_idt(7, 0);
1578 set_idt(8, 0);
1579 set_idt(9, 0);
1580 set_idt(10, 0);
1581 set_idt(11, 0);
1582 set_idt(12, 0);
1583 set_idt(13, 0);
1584 set_idt(14, 0);
1585 set_idt(15, 0);
1586 set_idt(16, 0);
1587 set_idt(17, 0);
1588 set_idt(18, 0);
1589 set_idt(19, 0);
1590 set_idt(0x80, 3);
1591
6dbad63e 1592 /* linux segment setup */
53a5960a 1593 env->gdt.base = h2g(gdt_table);
6dbad63e 1594 env->gdt.limit = sizeof(gdt_table) - 1;
f4beb510
FB		 1595 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
1596 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1597 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
1598 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
1599 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1600 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
6dbad63e
FB		 1601 cpu_x86_load_seg(env, R_CS, __USER_CS);
1602 cpu_x86_load_seg(env, R_DS, __USER_DS);
1603 cpu_x86_load_seg(env, R_ES, __USER_DS);
1604 cpu_x86_load_seg(env, R_SS, __USER_DS);
1605 cpu_x86_load_seg(env, R_FS, __USER_DS);
1606 cpu_x86_load_seg(env, R_GS, __USER_DS);
92ccca6a 1607
b346ff46
FB		 1608#elif defined(TARGET_ARM)
1609 {
1610 int i;
40f137e1 1611 cpu_arm_set_model(env, ARM_CPUID_ARM1026);
b5ff1b31 1612 cpsr_write(env, regs->uregs[16], 0xffffffff);
b346ff46
FB		 1613 for(i = 0; i < 16; i++) {
1614 env->regs[i] = regs->uregs[i];
1615 }
a4f81979
FB		 1616 ts->stack_base = info->start_stack;
1617 ts->heap_base = info->brk;
1618 /* This will be filled in on the first SYS_HEAPINFO call. */
1619 ts->heap_limit = 0;
b346ff46 1620 }
93ac68bc 1621#elif defined(TARGET_SPARC)
060366c5
FB		 1622 {
1623 int i;
1624 env->pc = regs->pc;
1625 env->npc = regs->npc;
1626 env->y = regs->y;
1627 for(i = 0; i < 8; i++)
1628 env->gregs[i] = regs->u_regs[i];
1629 for(i = 0; i < 8; i++)
1630 env->regwptr[i] = regs->u_regs[i + 8];
1631 }
67867308
FB		 1632#elif defined(TARGET_PPC)
1633 {
3fc6c082 1634 ppc_def_t *def;
67867308 1635 int i;
3fc6c082
FB		 1636
1637 /* Choose and initialise CPU */
1638 /* XXX: CPU model (or PVR) should be provided on command line */
1639 // ppc_find_by_name("750gx", &def);
1640 // ppc_find_by_name("750fx", &def);
1641 // ppc_find_by_name("750p", &def);
1642 ppc_find_by_name("750", &def);
1643 // ppc_find_by_name("G3", &def);
1644 // ppc_find_by_name("604r", &def);
1645 // ppc_find_by_name("604e", &def);
1646 // ppc_find_by_name("604", &def);
1647 if (def == NULL) {
c68ea704 1648 cpu_abort(env,
3fc6c082
FB		 1649 "Unable to find PowerPC CPU definition\n");
1650 }
c68ea704 1651 cpu_ppc_register(env, def);
3fc6c082 1652
61190b14 1653 for (i = 0; i < 32; i++) {
4c2e770f 1654 if (i != 12 && i != 6 && i != 13)
61190b14
FB		 1655 env->msr[i] = (regs->msr >> i) & 1;
1656 }
67867308
FB		 1657 env->nip = regs->nip;
1658 for(i = 0; i < 32; i++) {
1659 env->gpr[i] = regs->gpr[i];
1660 }
1661 }
048f6b4d
FB		 1662#elif defined(TARGET_MIPS)
1663 {
1664 int i;
1665
1666 for(i = 0; i < 32; i++) {
1667 env->gpr[i] = regs->regs[i];
1668 }
1669 env->PC = regs->cp0_epc;
bc1ad2de
FB		 1670#ifdef MIPS_USES_FPU
1671 env->CP0_Status |= (1 << CP0St_CU1);
1672#endif
048f6b4d 1673 }
fdf9b3e8
FB		 1674#elif defined(TARGET_SH4)
1675 {
1676 int i;
1677
1678 for(i = 0; i < 16; i++) {
1679 env->gregs[i] = regs->regs[i];
1680 }
1681 env->pc = regs->pc;
1682 }
b346ff46
FB		 1683#else
1684#error unsupported target CPU
1685#endif
31e31b8a 1686
74c33bed
FB		 1687 if (gdbstub_port) {
1688 gdbserver_start (gdbstub_port);
1fddef4b
FB		 1689 gdb_handlesig(env, 0);
1690 }
1b6b029e
FB		 1691 cpu_loop(env);
1692 /* never exits */
31e31b8a
FB		 1693 return 0;
1694}
Qemu copy for testing