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telnet protocol and more consistent syntax (Jason Wessel)
[mirror_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
110#if defined(__i386__)
111
112int64_t cpu_get_real_ticks(void)
113{
114 int64_t val;
115 asm volatile ("rdtsc" : "=A" (val));
116 return val;
117}
118
119#elif defined(__x86_64__)
120
121int64_t cpu_get_real_ticks(void)
122{
123 uint32_t low,high;
124 int64_t val;
125 asm volatile("rdtsc" : "=a" (low), "=d" (high));
126 val = high;
127 val <<= 32;
128 val |= low;
129 return val;
130}
131
132#else
133
134static uint64_t emu_time;
135
136int64_t cpu_get_real_ticks(void)
137{
138 return emu_time++;
139}
140
141#endif
142
a541f297
FB		 143#ifdef TARGET_I386
144/***********************************************************/
145/* CPUX86 core interface */
146
28ab0e2e
FB		 147uint64_t cpu_get_tsc(CPUX86State *env)
148{
149 return cpu_get_real_ticks();
150}
151
f4beb510
FB		 152static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
153 int flags)
6dbad63e 154{
f4beb510 155 unsigned int e1, e2;
53a5960a 156 uint32_t *p;
6dbad63e
FB		 157 e1 = (addr << 16) | (limit & 0xffff);
158 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
f4beb510 159 e2 |= flags;
53a5960a
PB		 160 p = ptr;
161 p[0] = tswapl(e1);
162 p[1] = tswapl(e2);
f4beb510
FB		 163}
164
165static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
166 unsigned long addr, unsigned int sel)
167{
168 unsigned int e1, e2;
53a5960a 169 uint32_t *p;
f4beb510
FB		 170 e1 = (addr & 0xffff) | (sel << 16);
171 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
53a5960a
PB		 172 p = ptr;
173 p[0] = tswapl(e1);
174 p[1] = tswapl(e2);
6dbad63e
FB		 175}
176
177uint64_t gdt_table[6];
f4beb510
FB		 178uint64_t idt_table[256];
179
180/* only dpl matters as we do only user space emulation */
181static void set_idt(int n, unsigned int dpl)
182{
183 set_gate(idt_table + n, 0, dpl, 0, 0);
184}
31e31b8a 185
89e957e7 186void cpu_loop(CPUX86State *env)
1b6b029e 187{
bc8a22cc 188 int trapnr;
80a9d035 189 target_ulong pc;
9de5e440 190 target_siginfo_t info;
851e67a1 191
1b6b029e 192 for(;;) {
bc8a22cc 193 trapnr = cpu_x86_exec(env);
bc8a22cc 194 switch(trapnr) {
f4beb510
FB		 195 case 0x80:
196 /* linux syscall */
197 env->regs[R_EAX] = do_syscall(env,
198 env->regs[R_EAX],
199 env->regs[R_EBX],
200 env->regs[R_ECX],
201 env->regs[R_EDX],
202 env->regs[R_ESI],
203 env->regs[R_EDI],
204 env->regs[R_EBP]);
205 break;
206 case EXCP0B_NOSEG:
207 case EXCP0C_STACK:
208 info.si_signo = SIGBUS;
209 info.si_errno = 0;
210 info.si_code = TARGET_SI_KERNEL;
211 info._sifields._sigfault._addr = 0;
212 queue_signal(info.si_signo, &info);
213 break;
1b6b029e 214 case EXCP0D_GPF:
851e67a1 215 if (env->eflags & VM_MASK) {
89e957e7 216 handle_vm86_fault(env);
1b6b029e 217 } else {
f4beb510
FB		 218 info.si_signo = SIGSEGV;
219 info.si_errno = 0;
220 info.si_code = TARGET_SI_KERNEL;
221 info._sifields._sigfault._addr = 0;
222 queue_signal(info.si_signo, &info);
1b6b029e
FB		 223 }
224 break;
b689bc57
FB		 225 case EXCP0E_PAGE:
226 info.si_signo = SIGSEGV;
227 info.si_errno = 0;
228 if (!(env->error_code & 1))
229 info.si_code = TARGET_SEGV_MAPERR;
230 else
231 info.si_code = TARGET_SEGV_ACCERR;
970a87a6 232 info._sifields._sigfault._addr = env->cr[2];
b689bc57
FB		 233 queue_signal(info.si_signo, &info);
234 break;
9de5e440 235 case EXCP00_DIVZ:
bc8a22cc 236 if (env->eflags & VM_MASK) {
447db213 237 handle_vm86_trap(env, trapnr);
bc8a22cc
FB		 238 } else {
239 /* division by zero */
240 info.si_signo = SIGFPE;
241 info.si_errno = 0;
242 info.si_code = TARGET_FPE_INTDIV;
243 info._sifields._sigfault._addr = env->eip;
244 queue_signal(info.si_signo, &info);
245 }
9de5e440 246 break;
447db213
FB		 247 case EXCP01_SSTP:
248 case EXCP03_INT3:
249 if (env->eflags & VM_MASK) {
250 handle_vm86_trap(env, trapnr);
251 } else {
252 info.si_signo = SIGTRAP;
253 info.si_errno = 0;
254 if (trapnr == EXCP01_SSTP) {
255 info.si_code = TARGET_TRAP_BRKPT;
256 info._sifields._sigfault._addr = env->eip;
257 } else {
258 info.si_code = TARGET_SI_KERNEL;
259 info._sifields._sigfault._addr = 0;
260 }
261 queue_signal(info.si_signo, &info);
262 }
263 break;
9de5e440
FB		 264 case EXCP04_INTO:
265 case EXCP05_BOUND:
bc8a22cc 266 if (env->eflags & VM_MASK) {
447db213 267 handle_vm86_trap(env, trapnr);
bc8a22cc
FB		 268 } else {
269 info.si_signo = SIGSEGV;
270 info.si_errno = 0;
b689bc57 271 info.si_code = TARGET_SI_KERNEL;
bc8a22cc
FB		 272 info._sifields._sigfault._addr = 0;
273 queue_signal(info.si_signo, &info);
274 }
9de5e440
FB		 275 break;
276 case EXCP06_ILLOP:
277 info.si_signo = SIGILL;
278 info.si_errno = 0;
279 info.si_code = TARGET_ILL_ILLOPN;
280 info._sifields._sigfault._addr = env->eip;
281 queue_signal(info.si_signo, &info);
282 break;
283 case EXCP_INTERRUPT:
284 /* just indicate that signals should be handled asap */
285 break;
1fddef4b
FB		 286 case EXCP_DEBUG:
287 {
288 int sig;
289
290 sig = gdb_handlesig (env, TARGET_SIGTRAP);
291 if (sig)
292 {
293 info.si_signo = sig;
294 info.si_errno = 0;
295 info.si_code = TARGET_TRAP_BRKPT;
296 queue_signal(info.si_signo, &info);
297 }
298 }
299 break;
1b6b029e 300 default:
970a87a6 301 pc = env->segs[R_CS].base + env->eip;
bc8a22cc
FB		 302 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
303 (long)pc, trapnr);
1b6b029e
FB		 304 abort();
305 }
66fb9763 306 process_pending_signals(env);
1b6b029e
FB		 307 }
308}
b346ff46
FB		 309#endif
310
311#ifdef TARGET_ARM
312
6f1f31c0
FB		 313/* XXX: find a better solution */
314extern void tb_invalidate_page_range(target_ulong start, target_ulong end);
315
316static void arm_cache_flush(target_ulong start, target_ulong last)
317{
318 target_ulong addr, last1;
319
320 if (last < start)
321 return;
322 addr = start;
323 for(;;) {
324 last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
325 if (last1 > last)
326 last1 = last;
327 tb_invalidate_page_range(addr, last1 + 1);
328 if (last1 == last)
329 break;
330 addr = last1 + 1;
331 }
332}
333
b346ff46
FB		 334void cpu_loop(CPUARMState *env)
335{
336 int trapnr;
337 unsigned int n, insn;
338 target_siginfo_t info;
b5ff1b31 339 uint32_t addr;
b346ff46
FB		 340
341 for(;;) {
342 trapnr = cpu_arm_exec(env);
343 switch(trapnr) {
344 case EXCP_UDEF:
c6981055
FB		 345 {
346 TaskState *ts = env->opaque;
347 uint32_t opcode;
348
349 /* we handle the FPU emulation here, as Linux */
350 /* we get the opcode */
53a5960a 351 opcode = tget32(env->regs[15]);
c6981055 352
19b045de 353 if (EmulateAll(opcode, &ts->fpa, env) == 0) {
c6981055
FB		 354 info.si_signo = SIGILL;
355 info.si_errno = 0;
356 info.si_code = TARGET_ILL_ILLOPN;
357 info._sifields._sigfault._addr = env->regs[15];
358 queue_signal(info.si_signo, &info);
359 } else {
360 /* increment PC */
361 env->regs[15] += 4;
362 }
363 }
b346ff46
FB		 364 break;
365 case EXCP_SWI:
06c949e6 366 case EXCP_BKPT:
b346ff46 367 {
ce4defa0 368 env->eabi = 1;
b346ff46 369 /* system call */
06c949e6
PB		 370 if (trapnr == EXCP_BKPT) {
371 if (env->thumb) {
53a5960a 372 insn = tget16(env->regs[15]);
06c949e6
PB		 373 n = insn & 0xff;
374 env->regs[15] += 2;
375 } else {
53a5960a 376 insn = tget32(env->regs[15]);
06c949e6
PB		 377 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
378 env->regs[15] += 4;
379 }
192c7bd9 380 } else {
06c949e6 381 if (env->thumb) {
53a5960a 382 insn = tget16(env->regs[15] - 2);
06c949e6
PB		 383 n = insn & 0xff;
384 } else {
53a5960a 385 insn = tget32(env->regs[15] - 4);
06c949e6
PB		 386 n = insn & 0xffffff;
387 }
192c7bd9
FB		 388 }
389
6f1f31c0
FB		 390 if (n == ARM_NR_cacheflush) {
391 arm_cache_flush(env->regs[0], env->regs[1]);
a4f81979
FB		 392 } else if (n == ARM_NR_semihosting
393 || n == ARM_NR_thumb_semihosting) {
394 env->regs[0] = do_arm_semihosting (env);
ce4defa0 395 } else if (n == 0 || n >= ARM_SYSCALL_BASE
192c7bd9 396 || (env->thumb && n == ARM_THUMB_SYSCALL)) {
b346ff46 397 /* linux syscall */
ce4defa0 398 if (env->thumb || n == 0) {
192c7bd9
FB		 399 n = env->regs[7];
400 } else {
401 n -= ARM_SYSCALL_BASE;
ce4defa0 402 env->eabi = 0;
192c7bd9 403 }
b346ff46
FB		 404 env->regs[0] = do_syscall(env,
405 n,
406 env->regs[0],
407 env->regs[1],
408 env->regs[2],
409 env->regs[3],
410 env->regs[4],
e1a2849c 411 env->regs[5]);
b346ff46
FB		 412 } else {
413 goto error;
414 }
415 }
416 break;
43fff238
FB		 417 case EXCP_INTERRUPT:
418 /* just indicate that signals should be handled asap */
419 break;
68016c62 420 case EXCP_PREFETCH_ABORT:
b5ff1b31
FB		 421 addr = env->cp15.c6_data;
422 goto do_segv;
68016c62 423 case EXCP_DATA_ABORT:
b5ff1b31
FB		 424 addr = env->cp15.c6_insn;
425 goto do_segv;
426 do_segv:
68016c62
FB		 427 {
428 info.si_signo = SIGSEGV;
429 info.si_errno = 0;
430 /* XXX: check env->error_code */
431 info.si_code = TARGET_SEGV_MAPERR;
b5ff1b31 432 info._sifields._sigfault._addr = addr;
68016c62
FB		 433 queue_signal(info.si_signo, &info);
434 }
435 break;
1fddef4b
FB		 436 case EXCP_DEBUG:
437 {
438 int sig;
439
440 sig = gdb_handlesig (env, TARGET_SIGTRAP);
441 if (sig)
442 {
443 info.si_signo = sig;
444 info.si_errno = 0;
445 info.si_code = TARGET_TRAP_BRKPT;
446 queue_signal(info.si_signo, &info);
447 }
448 }
449 break;
b346ff46
FB		 450 default:
451 error:
452 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
453 trapnr);
7fe48483 454 cpu_dump_state(env, stderr, fprintf, 0);
b346ff46
FB		 455 abort();
456 }
457 process_pending_signals(env);
458 }
459}
460
461#endif
1b6b029e 462
93ac68bc
FB		 463#ifdef TARGET_SPARC
464
060366c5
FB		 465//#define DEBUG_WIN
466
2623cbaf
FB		 467/* WARNING: dealing with register windows _is_ complicated. More info
468 can be found at http://www.sics.se/~psm/sparcstack.html */
060366c5
FB		 469static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
470{
471 index = (index + cwp * 16) & (16 * NWINDOWS - 1);
472 /* wrap handling : if cwp is on the last window, then we use the
473 registers 'after' the end */
474 if (index < 8 && env->cwp == (NWINDOWS - 1))
475 index += (16 * NWINDOWS);
476 return index;
477}
478
2623cbaf
FB		 479/* save the register window 'cwp1' */
480static inline void save_window_offset(CPUSPARCState *env, int cwp1)
060366c5 481{
2623cbaf 482 unsigned int i;
53a5960a 483 target_ulong sp_ptr;
060366c5 484
53a5960a 485 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
060366c5
FB		 486#if defined(DEBUG_WIN)
487 printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
488 (int)sp_ptr, cwp1);
489#endif
2623cbaf 490 for(i = 0; i < 16; i++) {
53a5960a
PB		 491 tputl(sp_ptr, env->regbase[get_reg_index(env, cwp1, 8 + i)]);
492 sp_ptr += sizeof(target_ulong);
2623cbaf 493 }
060366c5
FB		 494}
495
496static void save_window(CPUSPARCState *env)
497{
2623cbaf
FB		 498 unsigned int new_wim;
499 new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
500 ((1LL << NWINDOWS) - 1);
501 save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
502 env->wim = new_wim;
060366c5
FB		 503}
504
505static void restore_window(CPUSPARCState *env)
506{
507 unsigned int new_wim, i, cwp1;
53a5960a 508 target_ulong sp_ptr;
060366c5
FB		 509
510 new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
511 ((1LL << NWINDOWS) - 1);
512
513 /* restore the invalid window */
514 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
53a5960a 515 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
060366c5
FB		 516#if defined(DEBUG_WIN)
517 printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
518 (int)sp_ptr, cwp1);
519#endif
2623cbaf 520 for(i = 0; i < 16; i++) {
53a5960a
PB		 521 env->regbase[get_reg_index(env, cwp1, 8 + i)] = tgetl(sp_ptr);
522 sp_ptr += sizeof(target_ulong);
2623cbaf 523 }
060366c5
FB		 524 env->wim = new_wim;
525}
526
527static void flush_windows(CPUSPARCState *env)
528{
529 int offset, cwp1;
2623cbaf
FB		 530
531 offset = 1;
060366c5
FB		 532 for(;;) {
533 /* if restore would invoke restore_window(), then we can stop */
2623cbaf 534 cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
060366c5
FB		 535 if (env->wim & (1 << cwp1))
536 break;
2623cbaf 537 save_window_offset(env, cwp1);
060366c5
FB		 538 offset++;
539 }
2623cbaf
FB		 540 /* set wim so that restore will reload the registers */
541 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
542 env->wim = 1 << cwp1;
543#if defined(DEBUG_WIN)
544 printf("flush_windows: nb=%d\n", offset - 1);
80a9d035 545#endif
2623cbaf 546}
060366c5 547
93ac68bc
FB		 548void cpu_loop (CPUSPARCState *env)
549{
060366c5 550 int trapnr, ret;
61ff6f58 551 target_siginfo_t info;
060366c5
FB		 552
553 while (1) {
554 trapnr = cpu_sparc_exec (env);
555
556 switch (trapnr) {
557 case 0x88:
558 case 0x90:
559 ret = do_syscall (env, env->gregs[1],
560 env->regwptr[0], env->regwptr[1],
561 env->regwptr[2], env->regwptr[3],
562 env->regwptr[4], env->regwptr[5]);
563 if ((unsigned int)ret >= (unsigned int)(-515)) {
564 env->psr |= PSR_CARRY;
565 ret = -ret;
566 } else {
567 env->psr &= ~PSR_CARRY;
568 }
569 env->regwptr[0] = ret;
570 /* next instruction */
571 env->pc = env->npc;
572 env->npc = env->npc + 4;
573 break;
574 case 0x83: /* flush windows */
2623cbaf 575 flush_windows(env);
060366c5
FB		 576 /* next instruction */
577 env->pc = env->npc;
578 env->npc = env->npc + 4;
579 break;
3475187d 580#ifndef TARGET_SPARC64
060366c5
FB		 581 case TT_WIN_OVF: /* window overflow */
582 save_window(env);
583 break;
584 case TT_WIN_UNF: /* window underflow */
585 restore_window(env);
586 break;
61ff6f58
FB		 587 case TT_TFAULT:
588 case TT_DFAULT:
589 {
590 info.si_signo = SIGSEGV;
591 info.si_errno = 0;
592 /* XXX: check env->error_code */
593 info.si_code = TARGET_SEGV_MAPERR;
594 info._sifields._sigfault._addr = env->mmuregs[4];
595 queue_signal(info.si_signo, &info);
596 }
597 break;
3475187d
FB		 598#else
599 // XXX
600#endif
48dc41eb
FB		 601 case EXCP_INTERRUPT:
602 /* just indicate that signals should be handled asap */
603 break;
1fddef4b
FB		 604 case EXCP_DEBUG:
605 {
606 int sig;
607
608 sig = gdb_handlesig (env, TARGET_SIGTRAP);
609 if (sig)
610 {
611 info.si_signo = sig;
612 info.si_errno = 0;
613 info.si_code = TARGET_TRAP_BRKPT;
614 queue_signal(info.si_signo, &info);
615 }
616 }
617 break;
060366c5
FB		 618 default:
619 printf ("Unhandled trap: 0x%x\n", trapnr);
7fe48483 620 cpu_dump_state(env, stderr, fprintf, 0);
060366c5
FB		 621 exit (1);
622 }
623 process_pending_signals (env);
624 }
93ac68bc
FB		 625}
626
627#endif
628
67867308 629#ifdef TARGET_PPC
9fddaa0c
FB		 630
631static inline uint64_t cpu_ppc_get_tb (CPUState *env)
632{
633 /* TO FIX */
634 return 0;
635}
636
637uint32_t cpu_ppc_load_tbl (CPUState *env)
638{
639 return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
640}
641
642uint32_t cpu_ppc_load_tbu (CPUState *env)
643{
644 return cpu_ppc_get_tb(env) >> 32;
645}
646
647static void cpu_ppc_store_tb (CPUState *env, uint64_t value)
648{
649 /* TO FIX */
650}
651
652void cpu_ppc_store_tbu (CPUState *env, uint32_t value)
653{
654 cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env));
655}
656
657void cpu_ppc_store_tbl (CPUState *env, uint32_t value)
658{
659 cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value);
660}
661
662uint32_t cpu_ppc_load_decr (CPUState *env)
663{
664 /* TO FIX */
665 return -1;
666}
667
668void cpu_ppc_store_decr (CPUState *env, uint32_t value)
669{
670 /* TO FIX */
671}
672
67867308
FB		 673void cpu_loop(CPUPPCState *env)
674{
67867308 675 target_siginfo_t info;
61190b14
FB		 676 int trapnr;
677 uint32_t ret;
67867308
FB		 678
679 for(;;) {
680 trapnr = cpu_ppc_exec(env);
61190b14
FB		 681 if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
682 trapnr != EXCP_TRACE) {
683 if (loglevel > 0) {
7fe48483 684 cpu_dump_state(env, logfile, fprintf, 0);
61190b14
FB		 685 }
686 }
67867308
FB		 687 switch(trapnr) {
688 case EXCP_NONE:
67867308 689 break;
61190b14
FB		 690 case EXCP_SYSCALL_USER:
691 /* system call */
692 /* WARNING:
693 * PPC ABI uses overflow flag in cr0 to signal an error
694 * in syscalls.
695 */
67867308 696#if 0
61190b14
FB		 697 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
698 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
67867308 699#endif
61190b14
FB		 700 env->crf[0] &= ~0x1;
701 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
702 env->gpr[5], env->gpr[6], env->gpr[7],
703 env->gpr[8]);
704 if (ret > (uint32_t)(-515)) {
705 env->crf[0] |= 0x1;
706 ret = -ret;
707 }
708 env->gpr[3] = ret;
709#if 0
710 printf("syscall returned 0x%08x (%d)\n", ret, ret);
711#endif
712 break;
713 case EXCP_RESET:
714 /* Should not happen ! */
715 fprintf(stderr, "RESET asked... Stop emulation\n");
716 if (loglevel)
717 fprintf(logfile, "RESET asked... Stop emulation\n");
67867308 718 abort();
61190b14
FB		 719 case EXCP_MACHINE_CHECK:
720 fprintf(stderr, "Machine check exeption... Stop emulation\n");
721 if (loglevel)
722 fprintf(logfile, "RESET asked... Stop emulation\n");
723 info.si_signo = TARGET_SIGBUS;
67867308 724 info.si_errno = 0;
61190b14
FB		 725 info.si_code = TARGET_BUS_OBJERR;
726 info._sifields._sigfault._addr = env->nip - 4;
727 queue_signal(info.si_signo, &info);
728 case EXCP_DSI:
3fc6c082
FB		 729 fprintf(stderr, "Invalid data memory access: 0x%08x\n",
730 env->spr[SPR_DAR]);
61190b14
FB		 731 if (loglevel) {
732 fprintf(logfile, "Invalid data memory access: 0x%08x\n",
3fc6c082 733 env->spr[SPR_DAR]);
61190b14 734 }
2be0071f
FB		 735 switch (env->error_code & 0xFF000000) {
736 case 0x40000000:
61190b14
FB		 737 info.si_signo = TARGET_SIGSEGV;
738 info.si_errno = 0;
739 info.si_code = TARGET_SEGV_MAPERR;
740 break;
2be0071f 741 case 0x04000000:
61190b14
FB		 742 info.si_signo = TARGET_SIGILL;
743 info.si_errno = 0;
744 info.si_code = TARGET_ILL_ILLADR;
745 break;
2be0071f 746 case 0x08000000:
61190b14
FB		 747 info.si_signo = TARGET_SIGSEGV;
748 info.si_errno = 0;
749 info.si_code = TARGET_SEGV_ACCERR;
750 break;
61190b14
FB		 751 default:
752 /* Let's send a regular segfault... */
753 fprintf(stderr, "Invalid segfault errno (%02x)\n",
754 env->error_code);
755 if (loglevel) {
756 fprintf(logfile, "Invalid segfault errno (%02x)\n",
757 env->error_code);
758 }
759 info.si_signo = TARGET_SIGSEGV;
760 info.si_errno = 0;
761 info.si_code = TARGET_SEGV_MAPERR;
762 break;
763 }
67867308
FB		 764 info._sifields._sigfault._addr = env->nip;
765 queue_signal(info.si_signo, &info);
766 break;
61190b14 767 case EXCP_ISI:
67867308 768 fprintf(stderr, "Invalid instruction fetch\n");
61190b14
FB		 769 if (loglevel)
770 fprintf(logfile, "Invalid instruction fetch\n");
2be0071f
FB		 771 switch (env->error_code & 0xFF000000) {
772 case 0x40000000:
61190b14 773 info.si_signo = TARGET_SIGSEGV;
67867308 774 info.si_errno = 0;
61190b14
FB		 775 info.si_code = TARGET_SEGV_MAPERR;
776 break;
2be0071f
FB		 777 case 0x10000000:
778 case 0x08000000:
61190b14
FB		 779 info.si_signo = TARGET_SIGSEGV;
780 info.si_errno = 0;
781 info.si_code = TARGET_SEGV_ACCERR;
782 break;
783 default:
784 /* Let's send a regular segfault... */
785 fprintf(stderr, "Invalid segfault errno (%02x)\n",
786 env->error_code);
787 if (loglevel) {
788 fprintf(logfile, "Invalid segfault errno (%02x)\n",
789 env->error_code);
790 }
791 info.si_signo = TARGET_SIGSEGV;
792 info.si_errno = 0;
793 info.si_code = TARGET_SEGV_MAPERR;
794 break;
795 }
796 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 797 queue_signal(info.si_signo, &info);
798 break;
61190b14
FB		 799 case EXCP_EXTERNAL:
800 /* Should not happen ! */
801 fprintf(stderr, "External interruption... Stop emulation\n");
802 if (loglevel)
803 fprintf(logfile, "External interruption... Stop emulation\n");
67867308 804 abort();
61190b14
FB		 805 case EXCP_ALIGN:
806 fprintf(stderr, "Invalid unaligned memory access\n");
807 if (loglevel)
808 fprintf(logfile, "Invalid unaligned memory access\n");
809 info.si_signo = TARGET_SIGBUS;
67867308 810 info.si_errno = 0;
61190b14
FB		 811 info.si_code = TARGET_BUS_ADRALN;
812 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 813 queue_signal(info.si_signo, &info);
814 break;
61190b14
FB		 815 case EXCP_PROGRAM:
816 switch (env->error_code & ~0xF) {
817 case EXCP_FP:
818 fprintf(stderr, "Program exception\n");
819 if (loglevel)
820 fprintf(logfile, "Program exception\n");
821 /* Set FX */
822 env->fpscr[7] |= 0x8;
823 /* Finally, update FEX */
824 if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
825 ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
826 env->fpscr[7] |= 0x4;
827 info.si_signo = TARGET_SIGFPE;
828 info.si_errno = 0;
829 switch (env->error_code & 0xF) {
830 case EXCP_FP_OX:
831 info.si_code = TARGET_FPE_FLTOVF;
832 break;
833 case EXCP_FP_UX:
834 info.si_code = TARGET_FPE_FLTUND;
835 break;
836 case EXCP_FP_ZX:
837 case EXCP_FP_VXZDZ:
838 info.si_code = TARGET_FPE_FLTDIV;
839 break;
840 case EXCP_FP_XX:
841 info.si_code = TARGET_FPE_FLTRES;
842 break;
843 case EXCP_FP_VXSOFT:
844 info.si_code = TARGET_FPE_FLTINV;
845 break;
846 case EXCP_FP_VXNAN:
847 case EXCP_FP_VXISI:
848 case EXCP_FP_VXIDI:
849 case EXCP_FP_VXIMZ:
850 case EXCP_FP_VXVC:
851 case EXCP_FP_VXSQRT:
852 case EXCP_FP_VXCVI:
853 info.si_code = TARGET_FPE_FLTSUB;
854 break;
855 default:
856 fprintf(stderr, "Unknown floating point exception "
857 "(%02x)\n", env->error_code);
858 if (loglevel) {
859 fprintf(logfile, "Unknown floating point exception "
860 "(%02x)\n", env->error_code & 0xF);
861 }
862 }
863 break;
67867308 864 case EXCP_INVAL:
61190b14
FB		 865 fprintf(stderr, "Invalid instruction\n");
866 if (loglevel)
867 fprintf(logfile, "Invalid instruction\n");
868 info.si_signo = TARGET_SIGILL;
869 info.si_errno = 0;
870 switch (env->error_code & 0xF) {
871 case EXCP_INVAL_INVAL:
872 info.si_code = TARGET_ILL_ILLOPC;
873 break;
874 case EXCP_INVAL_LSWX:
67867308 875 info.si_code = TARGET_ILL_ILLOPN;
61190b14
FB		 876 break;
877 case EXCP_INVAL_SPR:
878 info.si_code = TARGET_ILL_PRVREG;
879 break;
880 case EXCP_INVAL_FP:
881 info.si_code = TARGET_ILL_COPROC;
882 break;
883 default:
884 fprintf(stderr, "Unknown invalid operation (%02x)\n",
885 env->error_code & 0xF);
886 if (loglevel) {
887 fprintf(logfile, "Unknown invalid operation (%02x)\n",
888 env->error_code & 0xF);
889 }
890 info.si_code = TARGET_ILL_ILLADR;
891 break;
892 }
893 break;
894 case EXCP_PRIV:
895 fprintf(stderr, "Privilege violation\n");
896 if (loglevel)
897 fprintf(logfile, "Privilege violation\n");
898 info.si_signo = TARGET_SIGILL;
899 info.si_errno = 0;
900 switch (env->error_code & 0xF) {
901 case EXCP_PRIV_OPC:
902 info.si_code = TARGET_ILL_PRVOPC;
903 break;
904 case EXCP_PRIV_REG:
905 info.si_code = TARGET_ILL_PRVREG;
906 break;
907 default:
908 fprintf(stderr, "Unknown privilege violation (%02x)\n",
909 env->error_code & 0xF);
910 info.si_code = TARGET_ILL_PRVOPC;
911 break;
912 }
913 break;
914 case EXCP_TRAP:
915 fprintf(stderr, "Tried to call a TRAP\n");
916 if (loglevel)
917 fprintf(logfile, "Tried to call a TRAP\n");
918 abort();
919 default:
920 /* Should not happen ! */
921 fprintf(stderr, "Unknown program exception (%02x)\n",
922 env->error_code);
923 if (loglevel) {
924 fprintf(logfile, "Unknwon program exception (%02x)\n",
925 env->error_code);
926 }
927 abort();
928 }
929 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 930 queue_signal(info.si_signo, &info);
931 break;
61190b14
FB		 932 case EXCP_NO_FP:
933 fprintf(stderr, "No floating point allowed\n");
934 if (loglevel)
935 fprintf(logfile, "No floating point allowed\n");
936 info.si_signo = TARGET_SIGILL;
67867308 937 info.si_errno = 0;
61190b14
FB		 938 info.si_code = TARGET_ILL_COPROC;
939 info._sifields._sigfault._addr = env->nip - 4;
67867308
FB		 940 queue_signal(info.si_signo, &info);
941 break;
61190b14
FB		 942 case EXCP_DECR:
943 /* Should not happen ! */
944 fprintf(stderr, "Decrementer exception\n");
945 if (loglevel)
946 fprintf(logfile, "Decrementer exception\n");
947 abort();
61190b14
FB		 948 case EXCP_TRACE:
949 /* Do nothing: we use this to trace execution */
67867308 950 break;
61190b14
FB		 951 case EXCP_FP_ASSIST:
952 /* Should not happen ! */
953 fprintf(stderr, "Floating point assist exception\n");
954 if (loglevel)
955 fprintf(logfile, "Floating point assist exception\n");
956 abort();
957 case EXCP_MTMSR:
958 /* We reloaded the msr, just go on */
9fddaa0c 959 if (msr_pr == 0) {
61190b14
FB		 960 fprintf(stderr, "Tried to go into supervisor mode !\n");
961 if (loglevel)
962 fprintf(logfile, "Tried to go into supervisor mode !\n");
963 abort();
67867308 964 }
61190b14
FB		 965 break;
966 case EXCP_BRANCH:
967 /* We stopped because of a jump... */
968 break;
61190b14
FB		 969 case EXCP_INTERRUPT:
970 /* Don't know why this should ever happen... */
971 break;
1fddef4b
FB		 972 case EXCP_DEBUG:
973 {
974 int sig;
975
976 sig = gdb_handlesig (env, TARGET_SIGTRAP);
977 if (sig)
978 {
979 info.si_signo = sig;
980 info.si_errno = 0;
981 info.si_code = TARGET_TRAP_BRKPT;
982 queue_signal(info.si_signo, &info);
983 }
984 }
985 break;
67867308 986 default:
67867308
FB		 987 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
988 trapnr);
61190b14
FB		 989 if (loglevel) {
990 fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
991 "0x%02x - aborting\n", trapnr, env->error_code);
992 }
67867308
FB		 993 abort();
994 }
995 process_pending_signals(env);
996 }
997}
998#endif
999
048f6b4d
FB		 1000#ifdef TARGET_MIPS
1001
1002#define MIPS_SYS(name, args) args,
1003
1004static const uint8_t mips_syscall_args[] = {
1005 MIPS_SYS(sys_syscall , 0) /* 4000 */
1006 MIPS_SYS(sys_exit , 1)
1007 MIPS_SYS(sys_fork , 0)
1008 MIPS_SYS(sys_read , 3)
1009 MIPS_SYS(sys_write , 3)
1010 MIPS_SYS(sys_open , 3) /* 4005 */
1011 MIPS_SYS(sys_close , 1)
1012 MIPS_SYS(sys_waitpid , 3)
1013 MIPS_SYS(sys_creat , 2)
1014 MIPS_SYS(sys_link , 2)
1015 MIPS_SYS(sys_unlink , 1) /* 4010 */
1016 MIPS_SYS(sys_execve , 0)
1017 MIPS_SYS(sys_chdir , 1)
1018 MIPS_SYS(sys_time , 1)
1019 MIPS_SYS(sys_mknod , 3)
1020 MIPS_SYS(sys_chmod , 2) /* 4015 */
1021 MIPS_SYS(sys_lchown , 3)
1022 MIPS_SYS(sys_ni_syscall , 0)
1023 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1024 MIPS_SYS(sys_lseek , 3)
1025 MIPS_SYS(sys_getpid , 0) /* 4020 */
1026 MIPS_SYS(sys_mount , 5)
1027 MIPS_SYS(sys_oldumount , 1)
1028 MIPS_SYS(sys_setuid , 1)
1029 MIPS_SYS(sys_getuid , 0)
1030 MIPS_SYS(sys_stime , 1) /* 4025 */
1031 MIPS_SYS(sys_ptrace , 4)
1032 MIPS_SYS(sys_alarm , 1)
1033 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1034 MIPS_SYS(sys_pause , 0)
1035 MIPS_SYS(sys_utime , 2) /* 4030 */
1036 MIPS_SYS(sys_ni_syscall , 0)
1037 MIPS_SYS(sys_ni_syscall , 0)
1038 MIPS_SYS(sys_access , 2)
1039 MIPS_SYS(sys_nice , 1)
1040 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1041 MIPS_SYS(sys_sync , 0)
1042 MIPS_SYS(sys_kill , 2)
1043 MIPS_SYS(sys_rename , 2)
1044 MIPS_SYS(sys_mkdir , 2)
1045 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1046 MIPS_SYS(sys_dup , 1)
1047 MIPS_SYS(sys_pipe , 0)
1048 MIPS_SYS(sys_times , 1)
1049 MIPS_SYS(sys_ni_syscall , 0)
1050 MIPS_SYS(sys_brk , 1) /* 4045 */
1051 MIPS_SYS(sys_setgid , 1)
1052 MIPS_SYS(sys_getgid , 0)
1053 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1054 MIPS_SYS(sys_geteuid , 0)
1055 MIPS_SYS(sys_getegid , 0) /* 4050 */
1056 MIPS_SYS(sys_acct , 0)
1057 MIPS_SYS(sys_umount , 2)
1058 MIPS_SYS(sys_ni_syscall , 0)
1059 MIPS_SYS(sys_ioctl , 3)
1060 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1061 MIPS_SYS(sys_ni_syscall , 2)
1062 MIPS_SYS(sys_setpgid , 2)
1063 MIPS_SYS(sys_ni_syscall , 0)
1064 MIPS_SYS(sys_olduname , 1)
1065 MIPS_SYS(sys_umask , 1) /* 4060 */
1066 MIPS_SYS(sys_chroot , 1)
1067 MIPS_SYS(sys_ustat , 2)
1068 MIPS_SYS(sys_dup2 , 2)
1069 MIPS_SYS(sys_getppid , 0)
1070 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1071 MIPS_SYS(sys_setsid , 0)
1072 MIPS_SYS(sys_sigaction , 3)
1073 MIPS_SYS(sys_sgetmask , 0)
1074 MIPS_SYS(sys_ssetmask , 1)
1075 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1076 MIPS_SYS(sys_setregid , 2)
1077 MIPS_SYS(sys_sigsuspend , 0)
1078 MIPS_SYS(sys_sigpending , 1)
1079 MIPS_SYS(sys_sethostname , 2)
1080 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1081 MIPS_SYS(sys_getrlimit , 2)
1082 MIPS_SYS(sys_getrusage , 2)
1083 MIPS_SYS(sys_gettimeofday, 2)
1084 MIPS_SYS(sys_settimeofday, 2)
1085 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1086 MIPS_SYS(sys_setgroups , 2)
1087 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1088 MIPS_SYS(sys_symlink , 2)
1089 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1090 MIPS_SYS(sys_readlink , 3) /* 4085 */
1091 MIPS_SYS(sys_uselib , 1)
1092 MIPS_SYS(sys_swapon , 2)
1093 MIPS_SYS(sys_reboot , 3)
1094 MIPS_SYS(old_readdir , 3)
1095 MIPS_SYS(old_mmap , 6) /* 4090 */
1096 MIPS_SYS(sys_munmap , 2)
1097 MIPS_SYS(sys_truncate , 2)
1098 MIPS_SYS(sys_ftruncate , 2)
1099 MIPS_SYS(sys_fchmod , 2)
1100 MIPS_SYS(sys_fchown , 3) /* 4095 */
1101 MIPS_SYS(sys_getpriority , 2)
1102 MIPS_SYS(sys_setpriority , 3)
1103 MIPS_SYS(sys_ni_syscall , 0)
1104 MIPS_SYS(sys_statfs , 2)
1105 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1106 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1107 MIPS_SYS(sys_socketcall , 2)
1108 MIPS_SYS(sys_syslog , 3)
1109 MIPS_SYS(sys_setitimer , 3)
1110 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1111 MIPS_SYS(sys_newstat , 2)
1112 MIPS_SYS(sys_newlstat , 2)
1113 MIPS_SYS(sys_newfstat , 2)
1114 MIPS_SYS(sys_uname , 1)
1115 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1116 MIPS_SYS(sys_vhangup , 0)
1117 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1118 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1119 MIPS_SYS(sys_wait4 , 4)
1120 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1121 MIPS_SYS(sys_sysinfo , 1)
1122 MIPS_SYS(sys_ipc , 6)
1123 MIPS_SYS(sys_fsync , 1)
1124 MIPS_SYS(sys_sigreturn , 0)
1125 MIPS_SYS(sys_clone , 0) /* 4120 */
1126 MIPS_SYS(sys_setdomainname, 2)
1127 MIPS_SYS(sys_newuname , 1)
1128 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1129 MIPS_SYS(sys_adjtimex , 1)
1130 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1131 MIPS_SYS(sys_sigprocmask , 3)
1132 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1133 MIPS_SYS(sys_init_module , 5)
1134 MIPS_SYS(sys_delete_module, 1)
1135 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1136 MIPS_SYS(sys_quotactl , 0)
1137 MIPS_SYS(sys_getpgid , 1)
1138 MIPS_SYS(sys_fchdir , 1)
1139 MIPS_SYS(sys_bdflush , 2)
1140 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1141 MIPS_SYS(sys_personality , 1)
1142 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1143 MIPS_SYS(sys_setfsuid , 1)
1144 MIPS_SYS(sys_setfsgid , 1)
1145 MIPS_SYS(sys_llseek , 5) /* 4140 */
1146 MIPS_SYS(sys_getdents , 3)
1147 MIPS_SYS(sys_select , 5)
1148 MIPS_SYS(sys_flock , 2)
1149 MIPS_SYS(sys_msync , 3)
1150 MIPS_SYS(sys_readv , 3) /* 4145 */
1151 MIPS_SYS(sys_writev , 3)
1152 MIPS_SYS(sys_cacheflush , 3)
1153 MIPS_SYS(sys_cachectl , 3)
1154 MIPS_SYS(sys_sysmips , 4)
1155 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1156 MIPS_SYS(sys_getsid , 1)
1157 MIPS_SYS(sys_fdatasync , 0)
1158 MIPS_SYS(sys_sysctl , 1)
1159 MIPS_SYS(sys_mlock , 2)
1160 MIPS_SYS(sys_munlock , 2) /* 4155 */
1161 MIPS_SYS(sys_mlockall , 1)
1162 MIPS_SYS(sys_munlockall , 0)
1163 MIPS_SYS(sys_sched_setparam, 2)
1164 MIPS_SYS(sys_sched_getparam, 2)
1165 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1166 MIPS_SYS(sys_sched_getscheduler, 1)
1167 MIPS_SYS(sys_sched_yield , 0)
1168 MIPS_SYS(sys_sched_get_priority_max, 1)
1169 MIPS_SYS(sys_sched_get_priority_min, 1)
1170 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1171 MIPS_SYS(sys_nanosleep, 2)
1172 MIPS_SYS(sys_mremap , 4)
1173 MIPS_SYS(sys_accept , 3)
1174 MIPS_SYS(sys_bind , 3)
1175 MIPS_SYS(sys_connect , 3) /* 4170 */
1176 MIPS_SYS(sys_getpeername , 3)
1177 MIPS_SYS(sys_getsockname , 3)
1178 MIPS_SYS(sys_getsockopt , 5)
1179 MIPS_SYS(sys_listen , 2)
1180 MIPS_SYS(sys_recv , 4) /* 4175 */
1181 MIPS_SYS(sys_recvfrom , 6)
1182 MIPS_SYS(sys_recvmsg , 3)
1183 MIPS_SYS(sys_send , 4)
1184 MIPS_SYS(sys_sendmsg , 3)
1185 MIPS_SYS(sys_sendto , 6) /* 4180 */
1186 MIPS_SYS(sys_setsockopt , 5)
1187 MIPS_SYS(sys_shutdown , 2)
1188 MIPS_SYS(sys_socket , 3)
1189 MIPS_SYS(sys_socketpair , 4)
1190 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1191 MIPS_SYS(sys_getresuid , 3)
1192 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1193 MIPS_SYS(sys_poll , 3)
1194 MIPS_SYS(sys_nfsservctl , 3)
1195 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1196 MIPS_SYS(sys_getresgid , 3)
1197 MIPS_SYS(sys_prctl , 5)
1198 MIPS_SYS(sys_rt_sigreturn, 0)
1199 MIPS_SYS(sys_rt_sigaction, 4)
1200 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1201 MIPS_SYS(sys_rt_sigpending, 2)
1202 MIPS_SYS(sys_rt_sigtimedwait, 4)
1203 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1204 MIPS_SYS(sys_rt_sigsuspend, 0)
1205 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1206 MIPS_SYS(sys_pwrite64 , 6)
1207 MIPS_SYS(sys_chown , 3)
1208 MIPS_SYS(sys_getcwd , 2)
1209 MIPS_SYS(sys_capget , 2)
1210 MIPS_SYS(sys_capset , 2) /* 4205 */
1211 MIPS_SYS(sys_sigaltstack , 0)
1212 MIPS_SYS(sys_sendfile , 4)
1213 MIPS_SYS(sys_ni_syscall , 0)
1214 MIPS_SYS(sys_ni_syscall , 0)
1215 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1216 MIPS_SYS(sys_truncate64 , 4)
1217 MIPS_SYS(sys_ftruncate64 , 4)
1218 MIPS_SYS(sys_stat64 , 2)
1219 MIPS_SYS(sys_lstat64 , 2)
1220 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1221 MIPS_SYS(sys_pivot_root , 2)
1222 MIPS_SYS(sys_mincore , 3)
1223 MIPS_SYS(sys_madvise , 3)
1224 MIPS_SYS(sys_getdents64 , 3)
1225 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1226 MIPS_SYS(sys_ni_syscall , 0)
1227 MIPS_SYS(sys_gettid , 0)
1228 MIPS_SYS(sys_readahead , 5)
1229 MIPS_SYS(sys_setxattr , 5)
1230 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1231 MIPS_SYS(sys_fsetxattr , 5)
1232 MIPS_SYS(sys_getxattr , 4)
1233 MIPS_SYS(sys_lgetxattr , 4)
1234 MIPS_SYS(sys_fgetxattr , 4)
1235 MIPS_SYS(sys_listxattr , 3) /* 4230 */
1236 MIPS_SYS(sys_llistxattr , 3)
1237 MIPS_SYS(sys_flistxattr , 3)
1238 MIPS_SYS(sys_removexattr , 2)
1239 MIPS_SYS(sys_lremovexattr, 2)
1240 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1241 MIPS_SYS(sys_tkill , 2)
1242 MIPS_SYS(sys_sendfile64 , 5)
1243 MIPS_SYS(sys_futex , 2)
1244 MIPS_SYS(sys_sched_setaffinity, 3)
1245 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1246 MIPS_SYS(sys_io_setup , 2)
1247 MIPS_SYS(sys_io_destroy , 1)
1248 MIPS_SYS(sys_io_getevents, 5)
1249 MIPS_SYS(sys_io_submit , 3)
1250 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1251 MIPS_SYS(sys_exit_group , 1)
1252 MIPS_SYS(sys_lookup_dcookie, 3)
1253 MIPS_SYS(sys_epoll_create, 1)
1254 MIPS_SYS(sys_epoll_ctl , 4)
1255 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1256 MIPS_SYS(sys_remap_file_pages, 5)
1257 MIPS_SYS(sys_set_tid_address, 1)
1258 MIPS_SYS(sys_restart_syscall, 0)
1259 MIPS_SYS(sys_fadvise64_64, 7)
1260 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1261 MIPS_SYS(sys_fstatfs64 , 2)
1262 MIPS_SYS(sys_timer_create, 3)
1263 MIPS_SYS(sys_timer_settime, 4)
1264 MIPS_SYS(sys_timer_gettime, 2)
1265 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1266 MIPS_SYS(sys_timer_delete, 1)
1267 MIPS_SYS(sys_clock_settime, 2)
1268 MIPS_SYS(sys_clock_gettime, 2)
1269 MIPS_SYS(sys_clock_getres, 2)
1270 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1271 MIPS_SYS(sys_tgkill , 3)
1272 MIPS_SYS(sys_utimes , 2)
1273 MIPS_SYS(sys_mbind , 4)
1274 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1275 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1276 MIPS_SYS(sys_mq_open , 4)
1277 MIPS_SYS(sys_mq_unlink , 1)
1278 MIPS_SYS(sys_mq_timedsend, 5)
1279 MIPS_SYS(sys_mq_timedreceive, 5)
1280 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1281 MIPS_SYS(sys_mq_getsetattr, 3)
1282 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1283 MIPS_SYS(sys_waitid , 4)
1284 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1285 MIPS_SYS(sys_add_key , 5)
1286 MIPS_SYS(sys_request_key , 4)
1287 MIPS_SYS(sys_keyctl , 5)
1288};
1289
1290#undef MIPS_SYS
1291
1292void cpu_loop(CPUMIPSState *env)
1293{
1294 target_siginfo_t info;
1295 int trapnr, ret, nb_args;
1296 unsigned int syscall_num;
1297 target_ulong arg5, arg6, sp_reg;
1298
1299 for(;;) {
1300 trapnr = cpu_mips_exec(env);
1301 switch(trapnr) {
1302 case EXCP_SYSCALL:
1303 {
1304 syscall_num = env->gpr[2] - 4000;
1305 if (syscall_num >= sizeof(mips_syscall_args)) {
1306 ret = -ENOSYS;
1307 } else {
1308 nb_args = mips_syscall_args[syscall_num];
1309 if (nb_args >= 5) {
1310 sp_reg = env->gpr[29];
1311 /* these arguments are taken from the stack */
53a5960a 1312 arg5 = tgetl(sp_reg + 16);
048f6b4d 1313 if (nb_args >= 6) {
53a5960a 1314 arg6 = tgetl(sp_reg + 20);
048f6b4d
FB		 1315 } else {
1316 arg6 = 0;
1317 }
1318 } else {
1319 arg5 = 0;
1320 arg6 = 0;
1321 }
1322 ret = do_syscall(env,
1323 env->gpr[2],
1324 env->gpr[4],
1325 env->gpr[5],
1326 env->gpr[6],
1327 env->gpr[7],
1328 arg5,
1329 arg6);
1330 }
048f6b4d
FB		 1331 env->PC += 4;
1332 if ((unsigned int)ret >= (unsigned int)(-1133)) {
1333 env->gpr[7] = 1; /* error flag */
1334 ret = -ret;
1335 env->gpr[0] = ret;
1336 env->gpr[2] = ret;
1337 } else {
1338 env->gpr[7] = 0; /* error flag */
1339 env->gpr[2] = ret;
1340 }
1341 }
1342 break;
6900e84b 1343 case EXCP_CpU:
048f6b4d 1344 case EXCP_RI:
bc1ad2de
FB		 1345 info.si_signo = TARGET_SIGILL;
1346 info.si_errno = 0;
1347 info.si_code = 0;
1348 queue_signal(info.si_signo, &info);
048f6b4d
FB		 1349 break;
1350 default:
1351 // error:
1352 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1353 trapnr);
1354 cpu_dump_state(env, stderr, fprintf, 0);
1355 abort();
1356 }
1357 process_pending_signals(env);
1358 }
1359}
1360#endif
1361
fdf9b3e8
FB		 1362#ifdef TARGET_SH4
1363void cpu_loop (CPUState *env)
1364{
1365 int trapnr, ret;
355fb23d 1366 target_siginfo_t info;
fdf9b3e8
FB		 1367
1368 while (1) {
1369 trapnr = cpu_sh4_exec (env);
1370
1371 switch (trapnr) {
1372 case 0x160:
1373 ret = do_syscall(env,
9c2a9ea1
PB		 1374 env->gregs[3],
1375 env->gregs[4],
1376 env->gregs[5],
1377 env->gregs[6],
1378 env->gregs[7],
1379 env->gregs[0],
fdf9b3e8 1380 0);
9c2a9ea1 1381 env->gregs[0] = ret;
fdf9b3e8
FB		 1382 env->pc += 2;
1383 break;
355fb23d
PB		 1384 case EXCP_DEBUG:
1385 {
1386 int sig;
1387
1388 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1389 if (sig)
1390 {
1391 info.si_signo = sig;
1392 info.si_errno = 0;
1393 info.si_code = TARGET_TRAP_BRKPT;
1394 queue_signal(info.si_signo, &info);
1395 }
1396 }
1397 break;
fdf9b3e8
FB		 1398 default:
1399 printf ("Unhandled trap: 0x%x\n", trapnr);
1400 cpu_dump_state(env, stderr, fprintf, 0);
1401 exit (1);
1402 }
1403 process_pending_signals (env);
1404 }
1405}
1406#endif
1407
31e31b8a
FB		 1408void usage(void)
1409{
f5a8510c 1410 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2005 Fabrice Bellard\n"
1fddef4b 1411 "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] program [arguments...]\n"
b346ff46 1412 "Linux CPU emulator (compiled for %s emulation)\n"
d691f669 1413 "\n"
54936004 1414 "-h print this help\n"
74c33bed 1415 "-g port wait gdb connection to port\n"
b346ff46
FB		 1416 "-L path set the elf interpreter prefix (default=%s)\n"
1417 "-s size set the stack size in bytes (default=%ld)\n"
54936004
FB		 1418 "\n"
1419 "debug options:\n"
c6981055
FB		 1420#ifdef USE_CODE_COPY
1421 "-no-code-copy disable code copy acceleration\n"
1422#endif
6f1f31c0 1423 "-d options activate log (logfile=%s)\n"
54936004 1424 "-p pagesize set the host page size to 'pagesize'\n",
b346ff46 1425 TARGET_ARCH,
d691f669 1426 interp_prefix,
54936004
FB		 1427 x86_stack_size,
1428 DEBUG_LOGFILE);
74cd30b8 1429 _exit(1);
31e31b8a
FB		 1430}
1431
9de5e440 1432/* XXX: currently only used for async signals (see signal.c) */
b346ff46 1433CPUState *global_env;
59faf6d6 1434
851e67a1
FB		 1435/* used to free thread contexts */
1436TaskState *first_task_state;
9de5e440 1437
31e31b8a
FB		 1438int main(int argc, char **argv)
1439{
1440 const char *filename;
01ffc75b 1441 struct target_pt_regs regs1, *regs = &regs1;
31e31b8a 1442 struct image_info info1, *info = &info1;
851e67a1 1443 TaskState ts1, *ts = &ts1;
b346ff46 1444 CPUState *env;
586314f2 1445 int optind;
d691f669 1446 const char *r;
74c33bed 1447 int gdbstub_port = 0;
d691f669 1448
31e31b8a
FB		 1449 if (argc <= 1)
1450 usage();
f801f97e 1451
cc38b844
FB		 1452 /* init debug */
1453 cpu_set_log_filename(DEBUG_LOGFILE);
1454
586314f2 1455 optind = 1;
d691f669
FB		 1456 for(;;) {
1457 if (optind >= argc)
1458 break;
1459 r = argv[optind];
1460 if (r[0] != '-')
1461 break;
586314f2 1462 optind++;
d691f669
FB		 1463 r++;
1464 if (!strcmp(r, "-")) {
1465 break;
1466 } else if (!strcmp(r, "d")) {
e19e89a5
FB		 1467 int mask;
1468 CPULogItem *item;
6f1f31c0
FB		 1469
1470 if (optind >= argc)
1471 break;
e19e89a5 1472
6f1f31c0
FB		 1473 r = argv[optind++];
1474 mask = cpu_str_to_log_mask(r);
e19e89a5
FB		 1475 if (!mask) {
1476 printf("Log items (comma separated):\n");
1477 for(item = cpu_log_items; item->mask != 0; item++) {
1478 printf("%-10s %s\n", item->name, item->help);
1479 }
1480 exit(1);
1481 }
1482 cpu_set_log(mask);
d691f669
FB		 1483 } else if (!strcmp(r, "s")) {
1484 r = argv[optind++];
1485 x86_stack_size = strtol(r, (char **)&r, 0);
1486 if (x86_stack_size <= 0)
1487 usage();
1488 if (*r == 'M')
1489 x86_stack_size *= 1024 * 1024;
1490 else if (*r == 'k' || *r == 'K')
1491 x86_stack_size *= 1024;
1492 } else if (!strcmp(r, "L")) {
1493 interp_prefix = argv[optind++];
54936004 1494 } else if (!strcmp(r, "p")) {
83fb7adf
FB		 1495 qemu_host_page_size = atoi(argv[optind++]);
1496 if (qemu_host_page_size == 0 ||
1497 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
54936004
FB		 1498 fprintf(stderr, "page size must be a power of two\n");
1499 exit(1);
1500 }
1fddef4b 1501 } else if (!strcmp(r, "g")) {
74c33bed 1502 gdbstub_port = atoi(argv[optind++]);
c5937220
PB		 1503 } else if (!strcmp(r, "r")) {
1504 qemu_uname_release = argv[optind++];
c6981055
FB		 1505 } else
1506#ifdef USE_CODE_COPY
1507 if (!strcmp(r, "no-code-copy")) {
1508 code_copy_enabled = 0;
1509 } else
1510#endif
1511 {
d691f669
FB		 1512 usage();
1513 }
586314f2 1514 }
d691f669
FB		 1515 if (optind >= argc)
1516 usage();
586314f2
FB		 1517 filename = argv[optind];
1518
31e31b8a 1519 /* Zero out regs */
01ffc75b 1520 memset(regs, 0, sizeof(struct target_pt_regs));
31e31b8a
FB		 1521
1522 /* Zero out image_info */
1523 memset(info, 0, sizeof(struct image_info));
1524
74cd30b8
FB		 1525 /* Scan interp_prefix dir for replacement files. */
1526 init_paths(interp_prefix);
1527
83fb7adf
FB		 1528 /* NOTE: we need to init the CPU at this stage to get
1529 qemu_host_page_size */
b346ff46 1530 env = cpu_init();
15338fd7 1531 global_env = env;
92ccca6a 1532
e5fe0c52 1533 if (loader_exec(filename, argv+optind, environ, regs, info) != 0) {
31e31b8a 1534 printf("Error loading %s\n", filename);
74cd30b8 1535 _exit(1);
31e31b8a
FB		 1536 }
1537
4b74fe1f 1538 if (loglevel) {
54936004
FB		 1539 page_dump(logfile);
1540
4b74fe1f
FB		 1541 fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk);
1542 fprintf(logfile, "end_code 0x%08lx\n" , info->end_code);
1543 fprintf(logfile, "start_code 0x%08lx\n" , info->start_code);
e5fe0c52 1544 fprintf(logfile, "start_data 0x%08lx\n" , info->start_data);
4b74fe1f
FB		 1545 fprintf(logfile, "end_data 0x%08lx\n" , info->end_data);
1546 fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack);
1547 fprintf(logfile, "brk 0x%08lx\n" , info->brk);
b346ff46 1548 fprintf(logfile, "entry 0x%08lx\n" , info->entry);
4b74fe1f 1549 }
31e31b8a 1550
53a5960a 1551 target_set_brk(info->brk);
31e31b8a 1552 syscall_init();
66fb9763 1553 signal_init();
31e31b8a 1554
851e67a1
FB		 1555 /* build Task State */
1556 memset(ts, 0, sizeof(TaskState));
1557 env->opaque = ts;
1558 ts->used = 1;
978efd6a 1559 ts->info = info;
59faf6d6 1560 env->user_mode_only = 1;
851e67a1 1561
b346ff46 1562#if defined(TARGET_I386)
2e255c6b
FB		 1563 cpu_x86_set_cpl(env, 3);
1564
3802ce26 1565 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
1bde465e
FB		 1566 env->hflags |= HF_PE_MASK;
1567 if (env->cpuid_features & CPUID_SSE) {
1568 env->cr[4] |= CR4_OSFXSR_MASK;
1569 env->hflags |= HF_OSFXSR_MASK;
1570 }
1571
415e561f
FB		 1572 /* flags setup : we activate the IRQs by default as in user mode */
1573 env->eflags |= IF_MASK;
1574
6dbad63e 1575 /* linux register setup */
0ecfa993
FB		 1576 env->regs[R_EAX] = regs->eax;
1577 env->regs[R_EBX] = regs->ebx;
1578 env->regs[R_ECX] = regs->ecx;
1579 env->regs[R_EDX] = regs->edx;
1580 env->regs[R_ESI] = regs->esi;
1581 env->regs[R_EDI] = regs->edi;
1582 env->regs[R_EBP] = regs->ebp;
1583 env->regs[R_ESP] = regs->esp;
dab2ed99 1584 env->eip = regs->eip;
31e31b8a 1585
f4beb510 1586 /* linux interrupt setup */
53a5960a 1587 env->idt.base = h2g(idt_table);
f4beb510
FB		 1588 env->idt.limit = sizeof(idt_table) - 1;
1589 set_idt(0, 0);
1590 set_idt(1, 0);
1591 set_idt(2, 0);
1592 set_idt(3, 3);
1593 set_idt(4, 3);
1594 set_idt(5, 3);
1595 set_idt(6, 0);
1596 set_idt(7, 0);
1597 set_idt(8, 0);
1598 set_idt(9, 0);
1599 set_idt(10, 0);
1600 set_idt(11, 0);
1601 set_idt(12, 0);
1602 set_idt(13, 0);
1603 set_idt(14, 0);
1604 set_idt(15, 0);
1605 set_idt(16, 0);
1606 set_idt(17, 0);
1607 set_idt(18, 0);
1608 set_idt(19, 0);
1609 set_idt(0x80, 3);
1610
6dbad63e 1611 /* linux segment setup */
53a5960a 1612 env->gdt.base = h2g(gdt_table);
6dbad63e 1613 env->gdt.limit = sizeof(gdt_table) - 1;
f4beb510
FB		 1614 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
1615 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1616 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
1617 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
1618 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1619 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
6dbad63e
FB		 1620 cpu_x86_load_seg(env, R_CS, __USER_CS);
1621 cpu_x86_load_seg(env, R_DS, __USER_DS);
1622 cpu_x86_load_seg(env, R_ES, __USER_DS);
1623 cpu_x86_load_seg(env, R_SS, __USER_DS);
1624 cpu_x86_load_seg(env, R_FS, __USER_DS);
1625 cpu_x86_load_seg(env, R_GS, __USER_DS);
92ccca6a 1626
b346ff46
FB		 1627#elif defined(TARGET_ARM)
1628 {
1629 int i;
40f137e1 1630 cpu_arm_set_model(env, ARM_CPUID_ARM1026);
b5ff1b31 1631 cpsr_write(env, regs->uregs[16], 0xffffffff);
b346ff46
FB		 1632 for(i = 0; i < 16; i++) {
1633 env->regs[i] = regs->uregs[i];
1634 }
a4f81979
FB		 1635 ts->stack_base = info->start_stack;
1636 ts->heap_base = info->brk;
1637 /* This will be filled in on the first SYS_HEAPINFO call. */
1638 ts->heap_limit = 0;
b346ff46 1639 }
93ac68bc 1640#elif defined(TARGET_SPARC)
060366c5
FB		 1641 {
1642 int i;
1643 env->pc = regs->pc;
1644 env->npc = regs->npc;
1645 env->y = regs->y;
1646 for(i = 0; i < 8; i++)
1647 env->gregs[i] = regs->u_regs[i];
1648 for(i = 0; i < 8; i++)
1649 env->regwptr[i] = regs->u_regs[i + 8];
1650 }
67867308
FB		 1651#elif defined(TARGET_PPC)
1652 {
3fc6c082 1653 ppc_def_t *def;
67867308 1654 int i;
3fc6c082
FB		 1655
1656 /* Choose and initialise CPU */
1657 /* XXX: CPU model (or PVR) should be provided on command line */
1658 // ppc_find_by_name("750gx", &def);
1659 // ppc_find_by_name("750fx", &def);
1660 // ppc_find_by_name("750p", &def);
1661 ppc_find_by_name("750", &def);
1662 // ppc_find_by_name("G3", &def);
1663 // ppc_find_by_name("604r", &def);
1664 // ppc_find_by_name("604e", &def);
1665 // ppc_find_by_name("604", &def);
1666 if (def == NULL) {
c68ea704 1667 cpu_abort(env,
3fc6c082
FB		 1668 "Unable to find PowerPC CPU definition\n");
1669 }
c68ea704 1670 cpu_ppc_register(env, def);
3fc6c082 1671
61190b14 1672 for (i = 0; i < 32; i++) {
4c2e770f 1673 if (i != 12 && i != 6 && i != 13)
61190b14
FB		 1674 env->msr[i] = (regs->msr >> i) & 1;
1675 }
67867308
FB		 1676 env->nip = regs->nip;
1677 for(i = 0; i < 32; i++) {
1678 env->gpr[i] = regs->gpr[i];
1679 }
1680 }
048f6b4d
FB		 1681#elif defined(TARGET_MIPS)
1682 {
1683 int i;
1684
1685 for(i = 0; i < 32; i++) {
1686 env->gpr[i] = regs->regs[i];
1687 }
1688 env->PC = regs->cp0_epc;
bc1ad2de
FB		 1689#ifdef MIPS_USES_FPU
1690 env->CP0_Status |= (1 << CP0St_CU1);
1691#endif
048f6b4d 1692 }
fdf9b3e8
FB		 1693#elif defined(TARGET_SH4)
1694 {
1695 int i;
1696
1697 for(i = 0; i < 16; i++) {
1698 env->gregs[i] = regs->regs[i];
1699 }
1700 env->pc = regs->pc;
1701 }
b346ff46
FB		 1702#else
1703#error unsupported target CPU
1704#endif
31e31b8a 1705
74c33bed
FB		 1706 if (gdbstub_port) {
1707 gdbserver_start (gdbstub_port);
1fddef4b
FB		 1708 gdb_handlesig(env, 0);
1709 }
1b6b029e
FB		 1710 cpu_loop(env);
1711 /* never exits */
31e31b8a
FB		 1712 return 0;
1713}
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