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1
/*
2
 *  qemu user main
3
 *
4
 *  Copyright (c) 2003 Fabrice Bellard
5
 *
6
 *  This program is free software; you can redistribute it and/or modify
7
 *  it under the terms of the GNU General Public License as published by
8
 *  the Free Software Foundation; either version 2 of the License, or
9
 *  (at your option) any later version.
10
 *
11
 *  This program is distributed in the hope that it will be useful,
12
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14
 *  GNU General Public License for more details.
15
 *
16
 *  You should have received a copy of the GNU General Public License
17
 *  along with this program; if not, write to the Free Software
18
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19
 */
20
#include <stdlib.h>
21
#include <stdio.h>
22
#include <stdarg.h>
23
#include <string.h>
24
#include <errno.h>
25
#include <unistd.h>
26

    
27
#include "qemu.h"
28

    
29
#define DEBUG_LOGFILE "/tmp/qemu.log"
30

    
31
static const char *interp_prefix = CONFIG_QEMU_PREFIX;
32
const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
33

    
34
#if defined(__i386__) && !defined(CONFIG_STATIC)
35
/* Force usage of an ELF interpreter even if it is an ELF shared
36
   object ! */
37
const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
38
#endif
39

    
40
/* for recent libc, we add these dummy symbols which are not declared
41
   when generating a linked object (bug in ld ?) */
42
#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC)
43
asm(".globl __preinit_array_start\n"
44
    ".globl __preinit_array_end\n"
45
    ".globl __init_array_start\n"
46
    ".globl __init_array_end\n"
47
    ".globl __fini_array_start\n"
48
    ".globl __fini_array_end\n"
49
    ".section \".rodata\"\n"
50
    "__preinit_array_start:\n"
51
    "__preinit_array_end:\n"
52
    "__init_array_start:\n"
53
    "__init_array_end:\n"
54
    "__fini_array_start:\n"
55
    "__fini_array_end:\n"
56
    ".long 0\n");
57
#endif
58

    
59
/* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
60
   we allocate a bigger stack. Need a better solution, for example
61
   by remapping the process stack directly at the right place */
62
unsigned long x86_stack_size = 512 * 1024;
63

    
64
void gemu_log(const char *fmt, ...)
65
{
66
    va_list ap;
67

    
68
    va_start(ap, fmt);
69
    vfprintf(stderr, fmt, ap);
70
    va_end(ap);
71
}
72

    
73
void cpu_outb(CPUState *env, int addr, int val)
74
{
75
    fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
76
}
77

    
78
void cpu_outw(CPUState *env, int addr, int val)
79
{
80
    fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
81
}
82

    
83
void cpu_outl(CPUState *env, int addr, int val)
84
{
85
    fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
86
}
87

    
88
int cpu_inb(CPUState *env, int addr)
89
{
90
    fprintf(stderr, "inb: port=0x%04x\n", addr);
91
    return 0;
92
}
93

    
94
int cpu_inw(CPUState *env, int addr)
95
{
96
    fprintf(stderr, "inw: port=0x%04x\n", addr);
97
    return 0;
98
}
99

    
100
int cpu_inl(CPUState *env, int addr)
101
{
102
    fprintf(stderr, "inl: port=0x%04x\n", addr);
103
    return 0;
104
}
105

    
106
int cpu_get_pic_interrupt(CPUState *env)
107
{
108
    return -1;
109
}
110

    
111
/* timers for rdtsc */
112

    
113
#if 0
114

115
static uint64_t emu_time;
116

117
int64_t cpu_get_real_ticks(void)
118
{
119
    return emu_time++;
120
}
121

122
#endif
123

    
124
#ifdef TARGET_I386
125
/***********************************************************/
126
/* CPUX86 core interface */
127

    
128
void cpu_smm_update(CPUState *env)
129
{
130
}
131

    
132
uint64_t cpu_get_tsc(CPUX86State *env)
133
{
134
    return cpu_get_real_ticks();
135
}
136

    
137
static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
138
                     int flags)
139
{
140
    unsigned int e1, e2;
141
    uint32_t *p;
142
    e1 = (addr << 16) | (limit & 0xffff);
143
    e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
144
    e2 |= flags;
145
    p = ptr;
146
    p[0] = tswapl(e1);
147
    p[1] = tswapl(e2);
148
}
149

    
150
static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
151
                     unsigned long addr, unsigned int sel)
152
{
153
    unsigned int e1, e2;
154
    uint32_t *p;
155
    e1 = (addr & 0xffff) | (sel << 16);
156
    e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
157
    p = ptr;
158
    p[0] = tswapl(e1);
159
    p[1] = tswapl(e2);
160
}
161

    
162
uint64_t gdt_table[6];
163
uint64_t idt_table[256];
164

    
165
/* only dpl matters as we do only user space emulation */
166
static void set_idt(int n, unsigned int dpl)
167
{
168
    set_gate(idt_table + n, 0, dpl, 0, 0);
169
}
170

    
171
void cpu_loop(CPUX86State *env)
172
{
173
    int trapnr;
174
    abi_ulong pc;
175
    target_siginfo_t info;
176

    
177
    for(;;) {
178
        trapnr = cpu_x86_exec(env);
179
        switch(trapnr) {
180
        case 0x80:
181
            /* linux syscall */
182
            env->regs[R_EAX] = do_syscall(env,
183
                                          env->regs[R_EAX],
184
                                          env->regs[R_EBX],
185
                                          env->regs[R_ECX],
186
                                          env->regs[R_EDX],
187
                                          env->regs[R_ESI],
188
                                          env->regs[R_EDI],
189
                                          env->regs[R_EBP]);
190
            break;
191
        case EXCP0B_NOSEG:
192
        case EXCP0C_STACK:
193
            info.si_signo = SIGBUS;
194
            info.si_errno = 0;
195
            info.si_code = TARGET_SI_KERNEL;
196
            info._sifields._sigfault._addr = 0;
197
            queue_signal(info.si_signo, &info);
198
            break;
199
        case EXCP0D_GPF:
200
#ifndef TARGET_X86_64
201
            if (env->eflags & VM_MASK) {
202
                handle_vm86_fault(env);
203
            } else
204
#endif
205
            {
206
                info.si_signo = SIGSEGV;
207
                info.si_errno = 0;
208
                info.si_code = TARGET_SI_KERNEL;
209
                info._sifields._sigfault._addr = 0;
210
                queue_signal(info.si_signo, &info);
211
            }
212
            break;
213
        case EXCP0E_PAGE:
214
            info.si_signo = SIGSEGV;
215
            info.si_errno = 0;
216
            if (!(env->error_code & 1))
217
                info.si_code = TARGET_SEGV_MAPERR;
218
            else
219
                info.si_code = TARGET_SEGV_ACCERR;
220
            info._sifields._sigfault._addr = env->cr[2];
221
            queue_signal(info.si_signo, &info);
222
            break;
223
        case EXCP00_DIVZ:
224
#ifndef TARGET_X86_64
225
            if (env->eflags & VM_MASK) {
226
                handle_vm86_trap(env, trapnr);
227
            } else
228
#endif
229
            {
230
                /* division by zero */
231
                info.si_signo = SIGFPE;
232
                info.si_errno = 0;
233
                info.si_code = TARGET_FPE_INTDIV;
234
                info._sifields._sigfault._addr = env->eip;
235
                queue_signal(info.si_signo, &info);
236
            }
237
            break;
238
        case EXCP01_SSTP:
239
        case EXCP03_INT3:
240
#ifndef TARGET_X86_64
241
            if (env->eflags & VM_MASK) {
242
                handle_vm86_trap(env, trapnr);
243
            } else
244
#endif
245
            {
246
                info.si_signo = SIGTRAP;
247
                info.si_errno = 0;
248
                if (trapnr == EXCP01_SSTP) {
249
                    info.si_code = TARGET_TRAP_BRKPT;
250
                    info._sifields._sigfault._addr = env->eip;
251
                } else {
252
                    info.si_code = TARGET_SI_KERNEL;
253
                    info._sifields._sigfault._addr = 0;
254
                }
255
                queue_signal(info.si_signo, &info);
256
            }
257
            break;
258
        case EXCP04_INTO:
259
        case EXCP05_BOUND:
260
#ifndef TARGET_X86_64
261
            if (env->eflags & VM_MASK) {
262
                handle_vm86_trap(env, trapnr);
263
            } else
264
#endif
265
            {
266
                info.si_signo = SIGSEGV;
267
                info.si_errno = 0;
268
                info.si_code = TARGET_SI_KERNEL;
269
                info._sifields._sigfault._addr = 0;
270
                queue_signal(info.si_signo, &info);
271
            }
272
            break;
273
        case EXCP06_ILLOP:
274
            info.si_signo = SIGILL;
275
            info.si_errno = 0;
276
            info.si_code = TARGET_ILL_ILLOPN;
277
            info._sifields._sigfault._addr = env->eip;
278
            queue_signal(info.si_signo, &info);
279
            break;
280
        case EXCP_INTERRUPT:
281
            /* just indicate that signals should be handled asap */
282
            break;
283
        case EXCP_DEBUG:
284
            {
285
                int sig;
286

    
287
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
288
                if (sig)
289
                  {
290
                    info.si_signo = sig;
291
                    info.si_errno = 0;
292
                    info.si_code = TARGET_TRAP_BRKPT;
293
                    queue_signal(info.si_signo, &info);
294
                  }
295
            }
296
            break;
297
        default:
298
            pc = env->segs[R_CS].base + env->eip;
299
            fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
300
                    (long)pc, trapnr);
301
            abort();
302
        }
303
        process_pending_signals(env);
304
    }
305
}
306
#endif
307

    
308
#ifdef TARGET_ARM
309

    
310
/* XXX: find a better solution */
311
extern void tb_invalidate_page_range(abi_ulong start, abi_ulong end);
312

    
313
static void arm_cache_flush(abi_ulong start, abi_ulong last)
314
{
315
    abi_ulong addr, last1;
316

    
317
    if (last < start)
318
        return;
319
    addr = start;
320
    for(;;) {
321
        last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
322
        if (last1 > last)
323
            last1 = last;
324
        tb_invalidate_page_range(addr, last1 + 1);
325
        if (last1 == last)
326
            break;
327
        addr = last1 + 1;
328
    }
329
}
330

    
331
void cpu_loop(CPUARMState *env)
332
{
333
    int trapnr;
334
    unsigned int n, insn;
335
    target_siginfo_t info;
336
    uint32_t addr;
337

    
338
    for(;;) {
339
        trapnr = cpu_arm_exec(env);
340
        switch(trapnr) {
341
        case EXCP_UDEF:
342
            {
343
                TaskState *ts = env->opaque;
344
                uint32_t opcode;
345

    
346
                /* we handle the FPU emulation here, as Linux */
347
                /* we get the opcode */
348
                opcode = tget32(env->regs[15]);
349

    
350
                if (EmulateAll(opcode, &ts->fpa, env) == 0) {
351
                    info.si_signo = SIGILL;
352
                    info.si_errno = 0;
353
                    info.si_code = TARGET_ILL_ILLOPN;
354
                    info._sifields._sigfault._addr = env->regs[15];
355
                    queue_signal(info.si_signo, &info);
356
                } else {
357
                    /* increment PC */
358
                    env->regs[15] += 4;
359
                }
360
            }
361
            break;
362
        case EXCP_SWI:
363
        case EXCP_BKPT:
364
            {
365
                env->eabi = 1;
366
                /* system call */
367
                if (trapnr == EXCP_BKPT) {
368
                    if (env->thumb) {
369
                        insn = tget16(env->regs[15]);
370
                        n = insn & 0xff;
371
                        env->regs[15] += 2;
372
                    } else {
373
                        insn = tget32(env->regs[15]);
374
                        n = (insn & 0xf) | ((insn >> 4) & 0xff0);
375
                        env->regs[15] += 4;
376
                    }
377
                } else {
378
                    if (env->thumb) {
379
                        insn = tget16(env->regs[15] - 2);
380
                        n = insn & 0xff;
381
                    } else {
382
                        insn = tget32(env->regs[15] - 4);
383
                        n = insn & 0xffffff;
384
                    }
385
                }
386

    
387
                if (n == ARM_NR_cacheflush) {
388
                    arm_cache_flush(env->regs[0], env->regs[1]);
389
                } else if (n == ARM_NR_semihosting
390
                           || n == ARM_NR_thumb_semihosting) {
391
                    env->regs[0] = do_arm_semihosting (env);
392
                } else if (n == 0 || n >= ARM_SYSCALL_BASE
393
                           || (env->thumb && n == ARM_THUMB_SYSCALL)) {
394
                    /* linux syscall */
395
                    if (env->thumb || n == 0) {
396
                        n = env->regs[7];
397
                    } else {
398
                        n -= ARM_SYSCALL_BASE;
399
                        env->eabi = 0;
400
                    }
401
                    env->regs[0] = do_syscall(env,
402
                                              n,
403
                                              env->regs[0],
404
                                              env->regs[1],
405
                                              env->regs[2],
406
                                              env->regs[3],
407
                                              env->regs[4],
408
                                              env->regs[5]);
409
                } else {
410
                    goto error;
411
                }
412
            }
413
            break;
414
        case EXCP_INTERRUPT:
415
            /* just indicate that signals should be handled asap */
416
            break;
417
        case EXCP_PREFETCH_ABORT:
418
            addr = env->cp15.c6_data;
419
            goto do_segv;
420
        case EXCP_DATA_ABORT:
421
            addr = env->cp15.c6_insn;
422
            goto do_segv;
423
        do_segv:
424
            {
425
                info.si_signo = SIGSEGV;
426
                info.si_errno = 0;
427
                /* XXX: check env->error_code */
428
                info.si_code = TARGET_SEGV_MAPERR;
429
                info._sifields._sigfault._addr = addr;
430
                queue_signal(info.si_signo, &info);
431
            }
432
            break;
433
        case EXCP_DEBUG:
434
            {
435
                int sig;
436

    
437
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
438
                if (sig)
439
                  {
440
                    info.si_signo = sig;
441
                    info.si_errno = 0;
442
                    info.si_code = TARGET_TRAP_BRKPT;
443
                    queue_signal(info.si_signo, &info);
444
                  }
445
            }
446
            break;
447
        default:
448
        error:
449
            fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
450
                    trapnr);
451
            cpu_dump_state(env, stderr, fprintf, 0);
452
            abort();
453
        }
454
        process_pending_signals(env);
455
    }
456
}
457

    
458
#endif
459

    
460
#ifdef TARGET_SPARC
461

    
462
//#define DEBUG_WIN
463

    
464
/* WARNING: dealing with register windows _is_ complicated. More info
465
   can be found at http://www.sics.se/~psm/sparcstack.html */
466
static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
467
{
468
    index = (index + cwp * 16) & (16 * NWINDOWS - 1);
469
    /* wrap handling : if cwp is on the last window, then we use the
470
       registers 'after' the end */
471
    if (index < 8 && env->cwp == (NWINDOWS - 1))
472
        index += (16 * NWINDOWS);
473
    return index;
474
}
475

    
476
/* save the register window 'cwp1' */
477
static inline void save_window_offset(CPUSPARCState *env, int cwp1)
478
{
479
    unsigned int i;
480
    abi_ulong sp_ptr;
481

    
482
    sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
483
#if defined(DEBUG_WIN)
484
    printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
485
           (int)sp_ptr, cwp1);
486
#endif
487
    for(i = 0; i < 16; i++) {
488
        tputl(sp_ptr, env->regbase[get_reg_index(env, cwp1, 8 + i)]);
489
        sp_ptr += sizeof(abi_ulong);
490
    }
491
}
492

    
493
static void save_window(CPUSPARCState *env)
494
{
495
#ifndef TARGET_SPARC64
496
    unsigned int new_wim;
497
    new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
498
        ((1LL << NWINDOWS) - 1);
499
    save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
500
    env->wim = new_wim;
501
#else
502
    save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
503
    env->cansave++;
504
    env->canrestore--;
505
#endif
506
}
507

    
508
static void restore_window(CPUSPARCState *env)
509
{
510
    unsigned int new_wim, i, cwp1;
511
    abi_ulong sp_ptr;
512

    
513
    new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
514
        ((1LL << NWINDOWS) - 1);
515

    
516
    /* restore the invalid window */
517
    cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
518
    sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
519
#if defined(DEBUG_WIN)
520
    printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
521
           (int)sp_ptr, cwp1);
522
#endif
523
    for(i = 0; i < 16; i++) {
524
        env->regbase[get_reg_index(env, cwp1, 8 + i)] = tgetl(sp_ptr);
525
        sp_ptr += sizeof(abi_ulong);
526
    }
527
    env->wim = new_wim;
528
#ifdef TARGET_SPARC64
529
    env->canrestore++;
530
    if (env->cleanwin < NWINDOWS - 1)
531
        env->cleanwin++;
532
    env->cansave--;
533
#endif
534
}
535

    
536
static void flush_windows(CPUSPARCState *env)
537
{
538
    int offset, cwp1;
539

    
540
    offset = 1;
541
    for(;;) {
542
        /* if restore would invoke restore_window(), then we can stop */
543
        cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
544
        if (env->wim & (1 << cwp1))
545
            break;
546
        save_window_offset(env, cwp1);
547
        offset++;
548
    }
549
    /* set wim so that restore will reload the registers */
550
    cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
551
    env->wim = 1 << cwp1;
552
#if defined(DEBUG_WIN)
553
    printf("flush_windows: nb=%d\n", offset - 1);
554
#endif
555
}
556

    
557
void cpu_loop (CPUSPARCState *env)
558
{
559
    int trapnr, ret;
560
    target_siginfo_t info;
561

    
562
    while (1) {
563
        trapnr = cpu_sparc_exec (env);
564

    
565
        switch (trapnr) {
566
#ifndef TARGET_SPARC64
567
        case 0x88:
568
        case 0x90:
569
#else
570
        case 0x110:
571
        case 0x16d:
572
#endif
573
            ret = do_syscall (env, env->gregs[1],
574
                              env->regwptr[0], env->regwptr[1],
575
                              env->regwptr[2], env->regwptr[3],
576
                              env->regwptr[4], env->regwptr[5]);
577
            if ((unsigned int)ret >= (unsigned int)(-515)) {
578
#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
579
                env->xcc |= PSR_CARRY;
580
#else
581
                env->psr |= PSR_CARRY;
582
#endif
583
                ret = -ret;
584
            } else {
585
#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
586
                env->xcc &= ~PSR_CARRY;
587
#else
588
                env->psr &= ~PSR_CARRY;
589
#endif
590
            }
591
            env->regwptr[0] = ret;
592
            /* next instruction */
593
            env->pc = env->npc;
594
            env->npc = env->npc + 4;
595
            break;
596
        case 0x83: /* flush windows */
597
#ifdef TARGET_ABI32
598
        case 0x103:
599
#endif
600
            flush_windows(env);
601
            /* next instruction */
602
            env->pc = env->npc;
603
            env->npc = env->npc + 4;
604
            break;
605
#ifndef TARGET_SPARC64
606
        case TT_WIN_OVF: /* window overflow */
607
            save_window(env);
608
            break;
609
        case TT_WIN_UNF: /* window underflow */
610
            restore_window(env);
611
            break;
612
        case TT_TFAULT:
613
        case TT_DFAULT:
614
            {
615
                info.si_signo = SIGSEGV;
616
                info.si_errno = 0;
617
                /* XXX: check env->error_code */
618
                info.si_code = TARGET_SEGV_MAPERR;
619
                info._sifields._sigfault._addr = env->mmuregs[4];
620
                queue_signal(info.si_signo, &info);
621
            }
622
            break;
623
#else
624
        case TT_SPILL: /* window overflow */
625
            save_window(env);
626
            break;
627
        case TT_FILL: /* window underflow */
628
            restore_window(env);
629
            break;
630
        case TT_TFAULT:
631
        case TT_DFAULT:
632
            {
633
                info.si_signo = SIGSEGV;
634
                info.si_errno = 0;
635
                /* XXX: check env->error_code */
636
                info.si_code = TARGET_SEGV_MAPERR;
637
                if (trapnr == TT_DFAULT)
638
                    info._sifields._sigfault._addr = env->dmmuregs[4];
639
                else
640
                    info._sifields._sigfault._addr = env->tpc[env->tl];
641
                queue_signal(info.si_signo, &info);
642
            }
643
            break;
644
        case 0x16e:
645
            flush_windows(env);
646
            sparc64_get_context(env);
647
            break;
648
        case 0x16f:
649
            flush_windows(env);
650
            sparc64_set_context(env);
651
            break;
652
#endif
653
        case EXCP_INTERRUPT:
654
            /* just indicate that signals should be handled asap */
655
            break;
656
        case EXCP_DEBUG:
657
            {
658
                int sig;
659

    
660
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
661
                if (sig)
662
                  {
663
                    info.si_signo = sig;
664
                    info.si_errno = 0;
665
                    info.si_code = TARGET_TRAP_BRKPT;
666
                    queue_signal(info.si_signo, &info);
667
                  }
668
            }
669
            break;
670
        default:
671
            printf ("Unhandled trap: 0x%x\n", trapnr);
672
            cpu_dump_state(env, stderr, fprintf, 0);
673
            exit (1);
674
        }
675
        process_pending_signals (env);
676
    }
677
}
678

    
679
#endif
680

    
681
#ifdef TARGET_PPC
682
static inline uint64_t cpu_ppc_get_tb (CPUState *env)
683
{
684
    /* TO FIX */
685
    return 0;
686
}
687

    
688
uint32_t cpu_ppc_load_tbl (CPUState *env)
689
{
690
    return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
691
}
692

    
693
uint32_t cpu_ppc_load_tbu (CPUState *env)
694
{
695
    return cpu_ppc_get_tb(env) >> 32;
696
}
697

    
698
uint32_t cpu_ppc_load_atbl (CPUState *env)
699
{
700
    return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
701
}
702

    
703
uint32_t cpu_ppc_load_atbu (CPUState *env)
704
{
705
    return cpu_ppc_get_tb(env) >> 32;
706
}
707

    
708
uint32_t cpu_ppc601_load_rtcu (CPUState *env)
709
__attribute__ (( alias ("cpu_ppc_load_tbu") ));
710

    
711
uint32_t cpu_ppc601_load_rtcl (CPUState *env)
712
{
713
    return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
714
}
715

    
716
/* XXX: to be fixed */
717
int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, target_ulong *valp)
718
{
719
    return -1;
720
}
721

    
722
int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, target_ulong val)
723
{
724
    return -1;
725
}
726

    
727
#define EXCP_DUMP(env, fmt, args...)                                         \
728
do {                                                                          \
729
    fprintf(stderr, fmt , ##args);                                            \
730
    cpu_dump_state(env, stderr, fprintf, 0);                                  \
731
    if (loglevel != 0) {                                                      \
732
        fprintf(logfile, fmt , ##args);                                       \
733
        cpu_dump_state(env, logfile, fprintf, 0);                             \
734
    }                                                                         \
735
} while (0)
736

    
737
void cpu_loop(CPUPPCState *env)
738
{
739
    target_siginfo_t info;
740
    int trapnr;
741
    uint32_t ret;
742

    
743
    for(;;) {
744
        trapnr = cpu_ppc_exec(env);
745
        switch(trapnr) {
746
        case POWERPC_EXCP_NONE:
747
            /* Just go on */
748
            break;
749
        case POWERPC_EXCP_CRITICAL: /* Critical input                        */
750
            cpu_abort(env, "Critical interrupt while in user mode. "
751
                      "Aborting\n");
752
            break;
753
        case POWERPC_EXCP_MCHECK:   /* Machine check exception               */
754
            cpu_abort(env, "Machine check exception while in user mode. "
755
                      "Aborting\n");
756
            break;
757
        case POWERPC_EXCP_DSI:      /* Data storage exception                */
758
            EXCP_DUMP(env, "Invalid data memory access: 0x" ADDRX "\n",
759
                      env->spr[SPR_DAR]);
760
            /* XXX: check this. Seems bugged */
761
            switch (env->error_code & 0xFF000000) {
762
            case 0x40000000:
763
                info.si_signo = TARGET_SIGSEGV;
764
                info.si_errno = 0;
765
                info.si_code = TARGET_SEGV_MAPERR;
766
                break;
767
            case 0x04000000:
768
                info.si_signo = TARGET_SIGILL;
769
                info.si_errno = 0;
770
                info.si_code = TARGET_ILL_ILLADR;
771
                break;
772
            case 0x08000000:
773
                info.si_signo = TARGET_SIGSEGV;
774
                info.si_errno = 0;
775
                info.si_code = TARGET_SEGV_ACCERR;
776
                break;
777
            default:
778
                /* Let's send a regular segfault... */
779
                EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
780
                          env->error_code);
781
                info.si_signo = TARGET_SIGSEGV;
782
                info.si_errno = 0;
783
                info.si_code = TARGET_SEGV_MAPERR;
784
                break;
785
            }
786
            info._sifields._sigfault._addr = env->nip;
787
            queue_signal(info.si_signo, &info);
788
            break;
789
        case POWERPC_EXCP_ISI:      /* Instruction storage exception         */
790
            EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" ADDRX "\n",
791
                      env->spr[SPR_SRR0]);
792
            /* XXX: check this */
793
            switch (env->error_code & 0xFF000000) {
794
            case 0x40000000:
795
                info.si_signo = TARGET_SIGSEGV;
796
            info.si_errno = 0;
797
                info.si_code = TARGET_SEGV_MAPERR;
798
                break;
799
            case 0x10000000:
800
            case 0x08000000:
801
                info.si_signo = TARGET_SIGSEGV;
802
                info.si_errno = 0;
803
                info.si_code = TARGET_SEGV_ACCERR;
804
                break;
805
            default:
806
                /* Let's send a regular segfault... */
807
                EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
808
                          env->error_code);
809
                info.si_signo = TARGET_SIGSEGV;
810
                info.si_errno = 0;
811
                info.si_code = TARGET_SEGV_MAPERR;
812
                break;
813
            }
814
            info._sifields._sigfault._addr = env->nip - 4;
815
            queue_signal(info.si_signo, &info);
816
            break;
817
        case POWERPC_EXCP_EXTERNAL: /* External input                        */
818
            cpu_abort(env, "External interrupt while in user mode. "
819
                      "Aborting\n");
820
            break;
821
        case POWERPC_EXCP_ALIGN:    /* Alignment exception                   */
822
            EXCP_DUMP(env, "Unaligned memory access\n");
823
            /* XXX: check this */
824
            info.si_signo = TARGET_SIGBUS;
825
            info.si_errno = 0;
826
            info.si_code = TARGET_BUS_ADRALN;
827
            info._sifields._sigfault._addr = env->nip - 4;
828
            queue_signal(info.si_signo, &info);
829
            break;
830
        case POWERPC_EXCP_PROGRAM:  /* Program exception                     */
831
            /* XXX: check this */
832
            switch (env->error_code & ~0xF) {
833
            case POWERPC_EXCP_FP:
834
                EXCP_DUMP(env, "Floating point program exception\n");
835
                info.si_signo = TARGET_SIGFPE;
836
                info.si_errno = 0;
837
                switch (env->error_code & 0xF) {
838
                case POWERPC_EXCP_FP_OX:
839
                    info.si_code = TARGET_FPE_FLTOVF;
840
                    break;
841
                case POWERPC_EXCP_FP_UX:
842
                    info.si_code = TARGET_FPE_FLTUND;
843
                    break;
844
                case POWERPC_EXCP_FP_ZX:
845
                case POWERPC_EXCP_FP_VXZDZ:
846
                    info.si_code = TARGET_FPE_FLTDIV;
847
                    break;
848
                case POWERPC_EXCP_FP_XX:
849
                    info.si_code = TARGET_FPE_FLTRES;
850
                    break;
851
                case POWERPC_EXCP_FP_VXSOFT:
852
                    info.si_code = TARGET_FPE_FLTINV;
853
                    break;
854
                case POWERPC_EXCP_FP_VXSNAN:
855
                case POWERPC_EXCP_FP_VXISI:
856
                case POWERPC_EXCP_FP_VXIDI:
857
                case POWERPC_EXCP_FP_VXIMZ:
858
                case POWERPC_EXCP_FP_VXVC:
859
                case POWERPC_EXCP_FP_VXSQRT:
860
                case POWERPC_EXCP_FP_VXCVI:
861
                    info.si_code = TARGET_FPE_FLTSUB;
862
                    break;
863
                default:
864
                    EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
865
                              env->error_code);
866
                    break;
867
                }
868
                break;
869
            case POWERPC_EXCP_INVAL:
870
                EXCP_DUMP(env, "Invalid instruction\n");
871
                info.si_signo = TARGET_SIGILL;
872
                info.si_errno = 0;
873
                switch (env->error_code & 0xF) {
874
                case POWERPC_EXCP_INVAL_INVAL:
875
                    info.si_code = TARGET_ILL_ILLOPC;
876
                    break;
877
                case POWERPC_EXCP_INVAL_LSWX:
878
                    info.si_code = TARGET_ILL_ILLOPN;
879
                    break;
880
                case POWERPC_EXCP_INVAL_SPR:
881
                    info.si_code = TARGET_ILL_PRVREG;
882
                    break;
883
                case POWERPC_EXCP_INVAL_FP:
884
                    info.si_code = TARGET_ILL_COPROC;
885
                    break;
886
                default:
887
                    EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
888
                              env->error_code & 0xF);
889
                    info.si_code = TARGET_ILL_ILLADR;
890
                    break;
891
                }
892
                break;
893
            case POWERPC_EXCP_PRIV:
894
                EXCP_DUMP(env, "Privilege violation\n");
895
                info.si_signo = TARGET_SIGILL;
896
                info.si_errno = 0;
897
                switch (env->error_code & 0xF) {
898
                case POWERPC_EXCP_PRIV_OPC:
899
                    info.si_code = TARGET_ILL_PRVOPC;
900
                    break;
901
                case POWERPC_EXCP_PRIV_REG:
902
                    info.si_code = TARGET_ILL_PRVREG;
903
                    break;
904
                default:
905
                    EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
906
                              env->error_code & 0xF);
907
                    info.si_code = TARGET_ILL_PRVOPC;
908
                    break;
909
                }
910
                break;
911
            case POWERPC_EXCP_TRAP:
912
                cpu_abort(env, "Tried to call a TRAP\n");
913
                break;
914
            default:
915
                /* Should not happen ! */
916
                cpu_abort(env, "Unknown program exception (%02x)\n",
917
                          env->error_code);
918
                break;
919
            }
920
            info._sifields._sigfault._addr = env->nip - 4;
921
            queue_signal(info.si_signo, &info);
922
            break;
923
        case POWERPC_EXCP_FPU:      /* Floating-point unavailable exception  */
924
            EXCP_DUMP(env, "No floating point allowed\n");
925
            info.si_signo = TARGET_SIGILL;
926
            info.si_errno = 0;
927
            info.si_code = TARGET_ILL_COPROC;
928
            info._sifields._sigfault._addr = env->nip - 4;
929
            queue_signal(info.si_signo, &info);
930
            break;
931
        case POWERPC_EXCP_SYSCALL:  /* System call exception                 */
932
            cpu_abort(env, "Syscall exception while in user mode. "
933
                      "Aborting\n");
934
            break;
935
        case POWERPC_EXCP_APU:      /* Auxiliary processor unavailable       */
936
            EXCP_DUMP(env, "No APU instruction allowed\n");
937
            info.si_signo = TARGET_SIGILL;
938
            info.si_errno = 0;
939
            info.si_code = TARGET_ILL_COPROC;
940
            info._sifields._sigfault._addr = env->nip - 4;
941
            queue_signal(info.si_signo, &info);
942
            break;
943
        case POWERPC_EXCP_DECR:     /* Decrementer exception                 */
944
            cpu_abort(env, "Decrementer interrupt while in user mode. "
945
                      "Aborting\n");
946
            break;
947
        case POWERPC_EXCP_FIT:      /* Fixed-interval timer interrupt        */
948
            cpu_abort(env, "Fix interval timer interrupt while in user mode. "
949
                      "Aborting\n");
950
            break;
951
        case POWERPC_EXCP_WDT:      /* Watchdog timer interrupt              */
952
            cpu_abort(env, "Watchdog timer interrupt while in user mode. "
953
                      "Aborting\n");
954
            break;
955
        case POWERPC_EXCP_DTLB:     /* Data TLB error                        */
956
            cpu_abort(env, "Data TLB exception while in user mode. "
957
                      "Aborting\n");
958
            break;
959
        case POWERPC_EXCP_ITLB:     /* Instruction TLB error                 */
960
            cpu_abort(env, "Instruction TLB exception while in user mode. "
961
                      "Aborting\n");
962
            break;
963
        case POWERPC_EXCP_DEBUG:    /* Debug interrupt                       */
964
            /* XXX: check this */
965
            {
966
                int sig;
967

    
968
                sig = gdb_handlesig(env, TARGET_SIGTRAP);
969
                if (sig) {
970
                    info.si_signo = sig;
971
                    info.si_errno = 0;
972
                    info.si_code = TARGET_TRAP_BRKPT;
973
                    queue_signal(info.si_signo, &info);
974
                  }
975
            }
976
            break;
977
#if defined(TARGET_PPCEMB)
978
        case POWERPC_EXCP_SPEU:     /* SPE/embedded floating-point unavail.  */
979
            EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
980
            info.si_signo = TARGET_SIGILL;
981
            info.si_errno = 0;
982
            info.si_code = TARGET_ILL_COPROC;
983
            info._sifields._sigfault._addr = env->nip - 4;
984
            queue_signal(info.si_signo, &info);
985
            break;
986
        case POWERPC_EXCP_EFPDI:    /* Embedded floating-point data IRQ      */
987
            cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
988
            break;
989
        case POWERPC_EXCP_EFPRI:    /* Embedded floating-point round IRQ     */
990
            cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
991
            break;
992
        case POWERPC_EXCP_EPERFM:   /* Embedded performance monitor IRQ      */
993
            cpu_abort(env, "Performance monitor exception not handled\n");
994
            break;
995
        case POWERPC_EXCP_DOORI:    /* Embedded doorbell interrupt           */
996
            cpu_abort(env, "Doorbell interrupt while in user mode. "
997
                       "Aborting\n");
998
            break;
999
        case POWERPC_EXCP_DOORCI:   /* Embedded doorbell critical interrupt  */
1000
            cpu_abort(env, "Doorbell critical interrupt while in user mode. "
1001
                      "Aborting\n");
1002
            break;
1003
        case POWERPC_EXCP_RESET:    /* System reset exception                */
1004
            cpu_abort(env, "Reset interrupt while in user mode. "
1005
                      "Aborting\n");
1006
            break;
1007
#endif /* defined(TARGET_PPCEMB) */
1008
#if defined(TARGET_PPC64) && !defined(TARGET_ABI32) /* PowerPC 64 */
1009
        case POWERPC_EXCP_DSEG:     /* Data segment exception                */
1010
            cpu_abort(env, "Data segment exception while in user mode. "
1011
                      "Aborting\n");
1012
            break;
1013
        case POWERPC_EXCP_ISEG:     /* Instruction segment exception         */
1014
            cpu_abort(env, "Instruction segment exception "
1015
                      "while in user mode. Aborting\n");
1016
            break;
1017
#endif /* defined(TARGET_PPC64) && !defined(TARGET_ABI32) */
1018
#if defined(TARGET_PPC64H) && !defined(TARGET_ABI32)
1019
        /* PowerPC 64 with hypervisor mode support */
1020
        case POWERPC_EXCP_HDECR:    /* Hypervisor decrementer exception      */
1021
            cpu_abort(env, "Hypervisor decrementer interrupt "
1022
                      "while in user mode. Aborting\n");
1023
            break;
1024
#endif /* defined(TARGET_PPC64H) && !defined(TARGET_ABI32) */
1025
        case POWERPC_EXCP_TRACE:    /* Trace exception                       */
1026
            /* Nothing to do:
1027
             * we use this exception to emulate step-by-step execution mode.
1028
             */
1029
            break;
1030
#if defined(TARGET_PPC64H) && !defined(TARGET_ABI32)
1031
        /* PowerPC 64 with hypervisor mode support */
1032
        case POWERPC_EXCP_HDSI:     /* Hypervisor data storage exception     */
1033
            cpu_abort(env, "Hypervisor data storage exception "
1034
                      "while in user mode. Aborting\n");
1035
            break;
1036
        case POWERPC_EXCP_HISI:     /* Hypervisor instruction storage excp   */
1037
            cpu_abort(env, "Hypervisor instruction storage exception "
1038
                      "while in user mode. Aborting\n");
1039
            break;
1040
        case POWERPC_EXCP_HDSEG:    /* Hypervisor data segment exception     */
1041
            cpu_abort(env, "Hypervisor data segment exception "
1042
                      "while in user mode. Aborting\n");
1043
            break;
1044
        case POWERPC_EXCP_HISEG:    /* Hypervisor instruction segment excp   */
1045
            cpu_abort(env, "Hypervisor instruction segment exception "
1046
                      "while in user mode. Aborting\n");
1047
            break;
1048
#endif /* defined(TARGET_PPC64H) && !defined(TARGET_ABI32) */
1049
        case POWERPC_EXCP_VPU:      /* Vector unavailable exception          */
1050
            EXCP_DUMP(env, "No Altivec instructions allowed\n");
1051
            info.si_signo = TARGET_SIGILL;
1052
            info.si_errno = 0;
1053
            info.si_code = TARGET_ILL_COPROC;
1054
            info._sifields._sigfault._addr = env->nip - 4;
1055
            queue_signal(info.si_signo, &info);
1056
            break;
1057
        case POWERPC_EXCP_PIT:      /* Programmable interval timer IRQ       */
1058
            cpu_abort(env, "Programable interval timer interrupt "
1059
                      "while in user mode. Aborting\n");
1060
            break;
1061
        case POWERPC_EXCP_IO:       /* IO error exception                    */
1062
            cpu_abort(env, "IO error exception while in user mode. "
1063
                      "Aborting\n");
1064
            break;
1065
        case POWERPC_EXCP_RUNM:     /* Run mode exception                    */
1066
            cpu_abort(env, "Run mode exception while in user mode. "
1067
                      "Aborting\n");
1068
            break;
1069
        case POWERPC_EXCP_EMUL:     /* Emulation trap exception              */
1070
            cpu_abort(env, "Emulation trap exception not handled\n");
1071
            break;
1072
        case POWERPC_EXCP_IFTLB:    /* Instruction fetch TLB error           */
1073
            cpu_abort(env, "Instruction fetch TLB exception "
1074
                      "while in user-mode. Aborting");
1075
            break;
1076
        case POWERPC_EXCP_DLTLB:    /* Data load TLB miss                    */
1077
            cpu_abort(env, "Data load TLB exception while in user-mode. "
1078
                      "Aborting");
1079
            break;
1080
        case POWERPC_EXCP_DSTLB:    /* Data store TLB miss                   */
1081
            cpu_abort(env, "Data store TLB exception while in user-mode. "
1082
                      "Aborting");
1083
            break;
1084
        case POWERPC_EXCP_FPA:      /* Floating-point assist exception       */
1085
            cpu_abort(env, "Floating-point assist exception not handled\n");
1086
            break;
1087
        case POWERPC_EXCP_IABR:     /* Instruction address breakpoint        */
1088
            cpu_abort(env, "Instruction address breakpoint exception "
1089
                      "not handled\n");
1090
            break;
1091
        case POWERPC_EXCP_SMI:      /* System management interrupt           */
1092
            cpu_abort(env, "System management interrupt while in user mode. "
1093
                      "Aborting\n");
1094
            break;
1095
        case POWERPC_EXCP_THERM:    /* Thermal interrupt                     */
1096
            cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
1097
                      "Aborting\n");
1098
            break;
1099
        case POWERPC_EXCP_PERFM:   /* Embedded performance monitor IRQ      */
1100
            cpu_abort(env, "Performance monitor exception not handled\n");
1101
            break;
1102
        case POWERPC_EXCP_VPUA:     /* Vector assist exception               */
1103
            cpu_abort(env, "Vector assist exception not handled\n");
1104
            break;
1105
        case POWERPC_EXCP_SOFTP:    /* Soft patch exception                  */
1106
            cpu_abort(env, "Soft patch exception not handled\n");
1107
            break;
1108
        case POWERPC_EXCP_MAINT:    /* Maintenance exception                 */
1109
            cpu_abort(env, "Maintenance exception while in user mode. "
1110
                      "Aborting\n");
1111
            break;
1112
        case POWERPC_EXCP_STOP:     /* stop translation                      */
1113
            /* We did invalidate the instruction cache. Go on */
1114
            break;
1115
        case POWERPC_EXCP_BRANCH:   /* branch instruction:                   */
1116
            /* We just stopped because of a branch. Go on */
1117
            break;
1118
        case POWERPC_EXCP_SYSCALL_USER:
1119
            /* system call in user-mode emulation */
1120
            /* WARNING:
1121
             * PPC ABI uses overflow flag in cr0 to signal an error
1122
             * in syscalls.
1123
             */
1124
#if 0
1125
            printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
1126
                   env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
1127
#endif
1128
            env->crf[0] &= ~0x1;
1129
            ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
1130
                             env->gpr[5], env->gpr[6], env->gpr[7],
1131
                             env->gpr[8]);
1132
            if (ret > (uint32_t)(-515)) {
1133
                env->crf[0] |= 0x1;
1134
                ret = -ret;
1135
            }
1136
            env->gpr[3] = ret;
1137
#if 0
1138
            printf("syscall returned 0x%08x (%d)\n", ret, ret);
1139
#endif
1140
            break;
1141
        case EXCP_INTERRUPT:
1142
            /* just indicate that signals should be handled asap */
1143
            break;
1144
        default:
1145
            cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
1146
            break;
1147
        }
1148
        process_pending_signals(env);
1149
    }
1150
}
1151
#endif
1152

    
1153
#ifdef TARGET_MIPS
1154

    
1155
#define MIPS_SYS(name, args) args,
1156

    
1157
static const uint8_t mips_syscall_args[] = {
1158
        MIPS_SYS(sys_syscall        , 0)        /* 4000 */
1159
        MIPS_SYS(sys_exit        , 1)
1160
        MIPS_SYS(sys_fork        , 0)
1161
        MIPS_SYS(sys_read        , 3)
1162
        MIPS_SYS(sys_write        , 3)
1163
        MIPS_SYS(sys_open        , 3)        /* 4005 */
1164
        MIPS_SYS(sys_close        , 1)
1165
        MIPS_SYS(sys_waitpid        , 3)
1166
        MIPS_SYS(sys_creat        , 2)
1167
        MIPS_SYS(sys_link        , 2)
1168
        MIPS_SYS(sys_unlink        , 1)        /* 4010 */
1169
        MIPS_SYS(sys_execve        , 0)
1170
        MIPS_SYS(sys_chdir        , 1)
1171
        MIPS_SYS(sys_time        , 1)
1172
        MIPS_SYS(sys_mknod        , 3)
1173
        MIPS_SYS(sys_chmod        , 2)        /* 4015 */
1174
        MIPS_SYS(sys_lchown        , 3)
1175
        MIPS_SYS(sys_ni_syscall        , 0)
1176
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_stat */
1177
        MIPS_SYS(sys_lseek        , 3)
1178
        MIPS_SYS(sys_getpid        , 0)        /* 4020 */
1179
        MIPS_SYS(sys_mount        , 5)
1180
        MIPS_SYS(sys_oldumount        , 1)
1181
        MIPS_SYS(sys_setuid        , 1)
1182
        MIPS_SYS(sys_getuid        , 0)
1183
        MIPS_SYS(sys_stime        , 1)        /* 4025 */
1184
        MIPS_SYS(sys_ptrace        , 4)
1185
        MIPS_SYS(sys_alarm        , 1)
1186
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_fstat */
1187
        MIPS_SYS(sys_pause        , 0)
1188
        MIPS_SYS(sys_utime        , 2)        /* 4030 */
1189
        MIPS_SYS(sys_ni_syscall        , 0)
1190
        MIPS_SYS(sys_ni_syscall        , 0)
1191
        MIPS_SYS(sys_access        , 2)
1192
        MIPS_SYS(sys_nice        , 1)
1193
        MIPS_SYS(sys_ni_syscall        , 0)        /* 4035 */
1194
        MIPS_SYS(sys_sync        , 0)
1195
        MIPS_SYS(sys_kill        , 2)
1196
        MIPS_SYS(sys_rename        , 2)
1197
        MIPS_SYS(sys_mkdir        , 2)
1198
        MIPS_SYS(sys_rmdir        , 1)        /* 4040 */
1199
        MIPS_SYS(sys_dup                , 1)
1200
        MIPS_SYS(sys_pipe        , 0)
1201
        MIPS_SYS(sys_times        , 1)
1202
        MIPS_SYS(sys_ni_syscall        , 0)
1203
        MIPS_SYS(sys_brk                , 1)        /* 4045 */
1204
        MIPS_SYS(sys_setgid        , 1)
1205
        MIPS_SYS(sys_getgid        , 0)
1206
        MIPS_SYS(sys_ni_syscall        , 0)        /* was signal(2) */
1207
        MIPS_SYS(sys_geteuid        , 0)
1208
        MIPS_SYS(sys_getegid        , 0)        /* 4050 */
1209
        MIPS_SYS(sys_acct        , 0)
1210
        MIPS_SYS(sys_umount        , 2)
1211
        MIPS_SYS(sys_ni_syscall        , 0)
1212
        MIPS_SYS(sys_ioctl        , 3)
1213
        MIPS_SYS(sys_fcntl        , 3)        /* 4055 */
1214
        MIPS_SYS(sys_ni_syscall        , 2)
1215
        MIPS_SYS(sys_setpgid        , 2)
1216
        MIPS_SYS(sys_ni_syscall        , 0)
1217
        MIPS_SYS(sys_olduname        , 1)
1218
        MIPS_SYS(sys_umask        , 1)        /* 4060 */
1219
        MIPS_SYS(sys_chroot        , 1)
1220
        MIPS_SYS(sys_ustat        , 2)
1221
        MIPS_SYS(sys_dup2        , 2)
1222
        MIPS_SYS(sys_getppid        , 0)
1223
        MIPS_SYS(sys_getpgrp        , 0)        /* 4065 */
1224
        MIPS_SYS(sys_setsid        , 0)
1225
        MIPS_SYS(sys_sigaction        , 3)
1226
        MIPS_SYS(sys_sgetmask        , 0)
1227
        MIPS_SYS(sys_ssetmask        , 1)
1228
        MIPS_SYS(sys_setreuid        , 2)        /* 4070 */
1229
        MIPS_SYS(sys_setregid        , 2)
1230
        MIPS_SYS(sys_sigsuspend        , 0)
1231
        MIPS_SYS(sys_sigpending        , 1)
1232
        MIPS_SYS(sys_sethostname        , 2)
1233
        MIPS_SYS(sys_setrlimit        , 2)        /* 4075 */
1234
        MIPS_SYS(sys_getrlimit        , 2)
1235
        MIPS_SYS(sys_getrusage        , 2)
1236
        MIPS_SYS(sys_gettimeofday, 2)
1237
        MIPS_SYS(sys_settimeofday, 2)
1238
        MIPS_SYS(sys_getgroups        , 2)        /* 4080 */
1239
        MIPS_SYS(sys_setgroups        , 2)
1240
        MIPS_SYS(sys_ni_syscall        , 0)        /* old_select */
1241
        MIPS_SYS(sys_symlink        , 2)
1242
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_lstat */
1243
        MIPS_SYS(sys_readlink        , 3)        /* 4085 */
1244
        MIPS_SYS(sys_uselib        , 1)
1245
        MIPS_SYS(sys_swapon        , 2)
1246
        MIPS_SYS(sys_reboot        , 3)
1247
        MIPS_SYS(old_readdir        , 3)
1248
        MIPS_SYS(old_mmap        , 6)        /* 4090 */
1249
        MIPS_SYS(sys_munmap        , 2)
1250
        MIPS_SYS(sys_truncate        , 2)
1251
        MIPS_SYS(sys_ftruncate        , 2)
1252
        MIPS_SYS(sys_fchmod        , 2)
1253
        MIPS_SYS(sys_fchown        , 3)        /* 4095 */
1254
        MIPS_SYS(sys_getpriority        , 2)
1255
        MIPS_SYS(sys_setpriority        , 3)
1256
        MIPS_SYS(sys_ni_syscall        , 0)
1257
        MIPS_SYS(sys_statfs        , 2)
1258
        MIPS_SYS(sys_fstatfs        , 2)        /* 4100 */
1259
        MIPS_SYS(sys_ni_syscall        , 0)        /* was ioperm(2) */
1260
        MIPS_SYS(sys_socketcall        , 2)
1261
        MIPS_SYS(sys_syslog        , 3)
1262
        MIPS_SYS(sys_setitimer        , 3)
1263
        MIPS_SYS(sys_getitimer        , 2)        /* 4105 */
1264
        MIPS_SYS(sys_newstat        , 2)
1265
        MIPS_SYS(sys_newlstat        , 2)
1266
        MIPS_SYS(sys_newfstat        , 2)
1267
        MIPS_SYS(sys_uname        , 1)
1268
        MIPS_SYS(sys_ni_syscall        , 0)        /* 4110 was iopl(2) */
1269
        MIPS_SYS(sys_vhangup        , 0)
1270
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_idle() */
1271
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_vm86 */
1272
        MIPS_SYS(sys_wait4        , 4)
1273
        MIPS_SYS(sys_swapoff        , 1)        /* 4115 */
1274
        MIPS_SYS(sys_sysinfo        , 1)
1275
        MIPS_SYS(sys_ipc                , 6)
1276
        MIPS_SYS(sys_fsync        , 1)
1277
        MIPS_SYS(sys_sigreturn        , 0)
1278
        MIPS_SYS(sys_clone        , 0)        /* 4120 */
1279
        MIPS_SYS(sys_setdomainname, 2)
1280
        MIPS_SYS(sys_newuname        , 1)
1281
        MIPS_SYS(sys_ni_syscall        , 0)        /* sys_modify_ldt */
1282
        MIPS_SYS(sys_adjtimex        , 1)
1283
        MIPS_SYS(sys_mprotect        , 3)        /* 4125 */
1284
        MIPS_SYS(sys_sigprocmask        , 3)
1285
        MIPS_SYS(sys_ni_syscall        , 0)        /* was create_module */
1286
        MIPS_SYS(sys_init_module        , 5)
1287
        MIPS_SYS(sys_delete_module, 1)
1288
        MIPS_SYS(sys_ni_syscall        , 0)        /* 4130        was get_kernel_syms */
1289
        MIPS_SYS(sys_quotactl        , 0)
1290
        MIPS_SYS(sys_getpgid        , 1)
1291
        MIPS_SYS(sys_fchdir        , 1)
1292
        MIPS_SYS(sys_bdflush        , 2)
1293
        MIPS_SYS(sys_sysfs        , 3)        /* 4135 */
1294
        MIPS_SYS(sys_personality        , 1)
1295
        MIPS_SYS(sys_ni_syscall        , 0)        /* for afs_syscall */
1296
        MIPS_SYS(sys_setfsuid        , 1)
1297
        MIPS_SYS(sys_setfsgid        , 1)
1298
        MIPS_SYS(sys_llseek        , 5)        /* 4140 */
1299
        MIPS_SYS(sys_getdents        , 3)
1300
        MIPS_SYS(sys_select        , 5)
1301
        MIPS_SYS(sys_flock        , 2)
1302
        MIPS_SYS(sys_msync        , 3)
1303
        MIPS_SYS(sys_readv        , 3)        /* 4145 */
1304
        MIPS_SYS(sys_writev        , 3)
1305
        MIPS_SYS(sys_cacheflush        , 3)
1306
        MIPS_SYS(sys_cachectl        , 3)
1307
        MIPS_SYS(sys_sysmips        , 4)
1308
        MIPS_SYS(sys_ni_syscall        , 0)        /* 4150 */
1309
        MIPS_SYS(sys_getsid        , 1)
1310
        MIPS_SYS(sys_fdatasync        , 0)
1311
        MIPS_SYS(sys_sysctl        , 1)
1312
        MIPS_SYS(sys_mlock        , 2)
1313
        MIPS_SYS(sys_munlock        , 2)        /* 4155 */
1314
        MIPS_SYS(sys_mlockall        , 1)
1315
        MIPS_SYS(sys_munlockall        , 0)
1316
        MIPS_SYS(sys_sched_setparam, 2)
1317
        MIPS_SYS(sys_sched_getparam, 2)
1318
        MIPS_SYS(sys_sched_setscheduler, 3)        /* 4160 */
1319
        MIPS_SYS(sys_sched_getscheduler, 1)
1320
        MIPS_SYS(sys_sched_yield        , 0)
1321
        MIPS_SYS(sys_sched_get_priority_max, 1)
1322
        MIPS_SYS(sys_sched_get_priority_min, 1)
1323
        MIPS_SYS(sys_sched_rr_get_interval, 2)        /* 4165 */
1324
        MIPS_SYS(sys_nanosleep,        2)
1325
        MIPS_SYS(sys_mremap        , 4)
1326
        MIPS_SYS(sys_accept        , 3)
1327
        MIPS_SYS(sys_bind        , 3)
1328
        MIPS_SYS(sys_connect        , 3)        /* 4170 */
1329
        MIPS_SYS(sys_getpeername        , 3)
1330
        MIPS_SYS(sys_getsockname        , 3)
1331
        MIPS_SYS(sys_getsockopt        , 5)
1332
        MIPS_SYS(sys_listen        , 2)
1333
        MIPS_SYS(sys_recv        , 4)        /* 4175 */
1334
        MIPS_SYS(sys_recvfrom        , 6)
1335
        MIPS_SYS(sys_recvmsg        , 3)
1336
        MIPS_SYS(sys_send        , 4)
1337
        MIPS_SYS(sys_sendmsg        , 3)
1338
        MIPS_SYS(sys_sendto        , 6)        /* 4180 */
1339
        MIPS_SYS(sys_setsockopt        , 5)
1340
        MIPS_SYS(sys_shutdown        , 2)
1341
        MIPS_SYS(sys_socket        , 3)
1342
        MIPS_SYS(sys_socketpair        , 4)
1343
        MIPS_SYS(sys_setresuid        , 3)        /* 4185 */
1344
        MIPS_SYS(sys_getresuid        , 3)
1345
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_query_module */
1346
        MIPS_SYS(sys_poll        , 3)
1347
        MIPS_SYS(sys_nfsservctl        , 3)
1348
        MIPS_SYS(sys_setresgid        , 3)        /* 4190 */
1349
        MIPS_SYS(sys_getresgid        , 3)
1350
        MIPS_SYS(sys_prctl        , 5)
1351
        MIPS_SYS(sys_rt_sigreturn, 0)
1352
        MIPS_SYS(sys_rt_sigaction, 4)
1353
        MIPS_SYS(sys_rt_sigprocmask, 4)        /* 4195 */
1354
        MIPS_SYS(sys_rt_sigpending, 2)
1355
        MIPS_SYS(sys_rt_sigtimedwait, 4)
1356
        MIPS_SYS(sys_rt_sigqueueinfo, 3)
1357
        MIPS_SYS(sys_rt_sigsuspend, 0)
1358
        MIPS_SYS(sys_pread64        , 6)        /* 4200 */
1359
        MIPS_SYS(sys_pwrite64        , 6)
1360
        MIPS_SYS(sys_chown        , 3)
1361
        MIPS_SYS(sys_getcwd        , 2)
1362
        MIPS_SYS(sys_capget        , 2)
1363
        MIPS_SYS(sys_capset        , 2)        /* 4205 */
1364
        MIPS_SYS(sys_sigaltstack        , 0)
1365
        MIPS_SYS(sys_sendfile        , 4)
1366
        MIPS_SYS(sys_ni_syscall        , 0)
1367
        MIPS_SYS(sys_ni_syscall        , 0)
1368
        MIPS_SYS(sys_mmap2        , 6)        /* 4210 */
1369
        MIPS_SYS(sys_truncate64        , 4)
1370
        MIPS_SYS(sys_ftruncate64        , 4)
1371
        MIPS_SYS(sys_stat64        , 2)
1372
        MIPS_SYS(sys_lstat64        , 2)
1373
        MIPS_SYS(sys_fstat64        , 2)        /* 4215 */
1374
        MIPS_SYS(sys_pivot_root        , 2)
1375
        MIPS_SYS(sys_mincore        , 3)
1376
        MIPS_SYS(sys_madvise        , 3)
1377
        MIPS_SYS(sys_getdents64        , 3)
1378
        MIPS_SYS(sys_fcntl64        , 3)        /* 4220 */
1379
        MIPS_SYS(sys_ni_syscall        , 0)
1380
        MIPS_SYS(sys_gettid        , 0)
1381
        MIPS_SYS(sys_readahead        , 5)
1382
        MIPS_SYS(sys_setxattr        , 5)
1383
        MIPS_SYS(sys_lsetxattr        , 5)        /* 4225 */
1384
        MIPS_SYS(sys_fsetxattr        , 5)
1385
        MIPS_SYS(sys_getxattr        , 4)
1386
        MIPS_SYS(sys_lgetxattr        , 4)
1387
        MIPS_SYS(sys_fgetxattr        , 4)
1388
        MIPS_SYS(sys_listxattr        , 3)        /* 4230 */
1389
        MIPS_SYS(sys_llistxattr        , 3)
1390
        MIPS_SYS(sys_flistxattr        , 3)
1391
        MIPS_SYS(sys_removexattr        , 2)
1392
        MIPS_SYS(sys_lremovexattr, 2)
1393
        MIPS_SYS(sys_fremovexattr, 2)        /* 4235 */
1394
        MIPS_SYS(sys_tkill        , 2)
1395
        MIPS_SYS(sys_sendfile64        , 5)
1396
        MIPS_SYS(sys_futex        , 2)
1397
        MIPS_SYS(sys_sched_setaffinity, 3)
1398
        MIPS_SYS(sys_sched_getaffinity, 3)        /* 4240 */
1399
        MIPS_SYS(sys_io_setup        , 2)
1400
        MIPS_SYS(sys_io_destroy        , 1)
1401
        MIPS_SYS(sys_io_getevents, 5)
1402
        MIPS_SYS(sys_io_submit        , 3)
1403
        MIPS_SYS(sys_io_cancel        , 3)        /* 4245 */
1404
        MIPS_SYS(sys_exit_group        , 1)
1405
        MIPS_SYS(sys_lookup_dcookie, 3)
1406
        MIPS_SYS(sys_epoll_create, 1)
1407
        MIPS_SYS(sys_epoll_ctl        , 4)
1408
        MIPS_SYS(sys_epoll_wait        , 3)        /* 4250 */
1409
        MIPS_SYS(sys_remap_file_pages, 5)
1410
        MIPS_SYS(sys_set_tid_address, 1)
1411
        MIPS_SYS(sys_restart_syscall, 0)
1412
        MIPS_SYS(sys_fadvise64_64, 7)
1413
        MIPS_SYS(sys_statfs64        , 3)        /* 4255 */
1414
        MIPS_SYS(sys_fstatfs64        , 2)
1415
        MIPS_SYS(sys_timer_create, 3)
1416
        MIPS_SYS(sys_timer_settime, 4)
1417
        MIPS_SYS(sys_timer_gettime, 2)
1418
        MIPS_SYS(sys_timer_getoverrun, 1)        /* 4260 */
1419
        MIPS_SYS(sys_timer_delete, 1)
1420
        MIPS_SYS(sys_clock_settime, 2)
1421
        MIPS_SYS(sys_clock_gettime, 2)
1422
        MIPS_SYS(sys_clock_getres, 2)
1423
        MIPS_SYS(sys_clock_nanosleep, 4)        /* 4265 */
1424
        MIPS_SYS(sys_tgkill        , 3)
1425
        MIPS_SYS(sys_utimes        , 2)
1426
        MIPS_SYS(sys_mbind        , 4)
1427
        MIPS_SYS(sys_ni_syscall        , 0)        /* sys_get_mempolicy */
1428
        MIPS_SYS(sys_ni_syscall        , 0)        /* 4270 sys_set_mempolicy */
1429
        MIPS_SYS(sys_mq_open        , 4)
1430
        MIPS_SYS(sys_mq_unlink        , 1)
1431
        MIPS_SYS(sys_mq_timedsend, 5)
1432
        MIPS_SYS(sys_mq_timedreceive, 5)
1433
        MIPS_SYS(sys_mq_notify        , 2)        /* 4275 */
1434
        MIPS_SYS(sys_mq_getsetattr, 3)
1435
        MIPS_SYS(sys_ni_syscall        , 0)        /* sys_vserver */
1436
        MIPS_SYS(sys_waitid        , 4)
1437
        MIPS_SYS(sys_ni_syscall        , 0)        /* available, was setaltroot */
1438
        MIPS_SYS(sys_add_key        , 5)
1439
        MIPS_SYS(sys_request_key, 4)
1440
        MIPS_SYS(sys_keyctl        , 5)
1441
        MIPS_SYS(sys_set_thread_area, 1)
1442
        MIPS_SYS(sys_inotify_init, 0)
1443
        MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
1444
        MIPS_SYS(sys_inotify_rm_watch, 2)
1445
        MIPS_SYS(sys_migrate_pages, 4)
1446
        MIPS_SYS(sys_openat, 4)
1447
        MIPS_SYS(sys_mkdirat, 3)
1448
        MIPS_SYS(sys_mknodat, 4)        /* 4290 */
1449
        MIPS_SYS(sys_fchownat, 5)
1450
        MIPS_SYS(sys_futimesat, 3)
1451
        MIPS_SYS(sys_fstatat64, 4)
1452
        MIPS_SYS(sys_unlinkat, 3)
1453
        MIPS_SYS(sys_renameat, 4)        /* 4295 */
1454
        MIPS_SYS(sys_linkat, 5)
1455
        MIPS_SYS(sys_symlinkat, 3)
1456
        MIPS_SYS(sys_readlinkat, 4)
1457
        MIPS_SYS(sys_fchmodat, 3)
1458
        MIPS_SYS(sys_faccessat, 3)        /* 4300 */
1459
        MIPS_SYS(sys_pselect6, 6)
1460
        MIPS_SYS(sys_ppoll, 5)
1461
        MIPS_SYS(sys_unshare, 1)
1462
        MIPS_SYS(sys_splice, 4)
1463
        MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
1464
        MIPS_SYS(sys_tee, 4)
1465
        MIPS_SYS(sys_vmsplice, 4)
1466
        MIPS_SYS(sys_move_pages, 6)
1467
        MIPS_SYS(sys_set_robust_list, 2)
1468
        MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
1469
        MIPS_SYS(sys_kexec_load, 4)
1470
        MIPS_SYS(sys_getcpu, 3)
1471
        MIPS_SYS(sys_epoll_pwait, 6)
1472
        MIPS_SYS(sys_ioprio_set, 3)
1473
        MIPS_SYS(sys_ioprio_get, 2)
1474
};
1475

    
1476
#undef MIPS_SYS
1477

    
1478
void cpu_loop(CPUMIPSState *env)
1479
{
1480
    target_siginfo_t info;
1481
    int trapnr, ret;
1482
    unsigned int syscall_num;
1483

    
1484
    for(;;) {
1485
        trapnr = cpu_mips_exec(env);
1486
        switch(trapnr) {
1487
        case EXCP_SYSCALL:
1488
            syscall_num = env->gpr[2][env->current_tc] - 4000;
1489
            env->PC[env->current_tc] += 4;
1490
            if (syscall_num >= sizeof(mips_syscall_args)) {
1491
                ret = -ENOSYS;
1492
            } else {
1493
                int nb_args;
1494
                abi_ulong sp_reg;
1495
                abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
1496

    
1497
                nb_args = mips_syscall_args[syscall_num];
1498
                sp_reg = env->gpr[29][env->current_tc];
1499
                switch (nb_args) {
1500
                /* these arguments are taken from the stack */
1501
                case 8: arg8 = tgetl(sp_reg + 28);
1502
                case 7: arg7 = tgetl(sp_reg + 24);
1503
                case 6: arg6 = tgetl(sp_reg + 20);
1504
                case 5: arg5 = tgetl(sp_reg + 16);
1505
                default:
1506
                    break;
1507
                }
1508
                ret = do_syscall(env, env->gpr[2][env->current_tc],
1509
                                 env->gpr[4][env->current_tc],
1510
                                 env->gpr[5][env->current_tc],
1511
                                 env->gpr[6][env->current_tc],
1512
                                 env->gpr[7][env->current_tc],
1513
                                 arg5, arg6/*, arg7, arg8*/);
1514
            }
1515
            if ((unsigned int)ret >= (unsigned int)(-1133)) {
1516
                env->gpr[7][env->current_tc] = 1; /* error flag */
1517
                ret = -ret;
1518
            } else {
1519
                env->gpr[7][env->current_tc] = 0; /* error flag */
1520
            }
1521
            env->gpr[2][env->current_tc] = ret;
1522
            break;
1523
        case EXCP_TLBL:
1524
        case EXCP_TLBS:
1525
        case EXCP_CpU:
1526
        case EXCP_RI:
1527
            info.si_signo = TARGET_SIGILL;
1528
            info.si_errno = 0;
1529
            info.si_code = 0;
1530
            queue_signal(info.si_signo, &info);
1531
            break;
1532
        case EXCP_INTERRUPT:
1533
            /* just indicate that signals should be handled asap */
1534
            break;
1535
        case EXCP_DEBUG:
1536
            {
1537
                int sig;
1538

    
1539
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1540
                if (sig)
1541
                  {
1542
                    info.si_signo = sig;
1543
                    info.si_errno = 0;
1544
                    info.si_code = TARGET_TRAP_BRKPT;
1545
                    queue_signal(info.si_signo, &info);
1546
                  }
1547
            }
1548
            break;
1549
        default:
1550
            //        error:
1551
            fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1552
                    trapnr);
1553
            cpu_dump_state(env, stderr, fprintf, 0);
1554
            abort();
1555
        }
1556
        process_pending_signals(env);
1557
    }
1558
}
1559
#endif
1560

    
1561
#ifdef TARGET_SH4
1562
void cpu_loop (CPUState *env)
1563
{
1564
    int trapnr, ret;
1565
    target_siginfo_t info;
1566

    
1567
    while (1) {
1568
        trapnr = cpu_sh4_exec (env);
1569

    
1570
        switch (trapnr) {
1571
        case 0x160:
1572
            ret = do_syscall(env,
1573
                             env->gregs[3],
1574
                             env->gregs[4],
1575
                             env->gregs[5],
1576
                             env->gregs[6],
1577
                             env->gregs[7],
1578
                             env->gregs[0],
1579
                             0);
1580
            env->gregs[0] = ret;
1581
            env->pc += 2;
1582
            break;
1583
        case EXCP_DEBUG:
1584
            {
1585
                int sig;
1586

    
1587
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1588
                if (sig)
1589
                  {
1590
                    info.si_signo = sig;
1591
                    info.si_errno = 0;
1592
                    info.si_code = TARGET_TRAP_BRKPT;
1593
                    queue_signal(info.si_signo, &info);
1594
                  }
1595
            }
1596
            break;
1597
        default:
1598
            printf ("Unhandled trap: 0x%x\n", trapnr);
1599
            cpu_dump_state(env, stderr, fprintf, 0);
1600
            exit (1);
1601
        }
1602
        process_pending_signals (env);
1603
    }
1604
}
1605
#endif
1606

    
1607
#ifdef TARGET_CRIS
1608
void cpu_loop (CPUState *env)
1609
{
1610
    int trapnr, ret;
1611
    target_siginfo_t info;
1612
    
1613
    while (1) {
1614
        trapnr = cpu_cris_exec (env);
1615
        switch (trapnr) {
1616
        case 0xaa:
1617
            {
1618
                info.si_signo = SIGSEGV;
1619
                info.si_errno = 0;
1620
                /* XXX: check env->error_code */
1621
                info.si_code = TARGET_SEGV_MAPERR;
1622
                info._sifields._sigfault._addr = env->debug1;
1623
                queue_signal(info.si_signo, &info);
1624
            }
1625
            break;
1626
        case EXCP_BREAK:
1627
            ret = do_syscall(env, 
1628
                             env->regs[9], 
1629
                             env->regs[10], 
1630
                             env->regs[11], 
1631
                             env->regs[12], 
1632
                             env->regs[13], 
1633
                             env->pregs[7], 
1634
                             env->pregs[11]);
1635
            env->regs[10] = ret;
1636
            env->pc += 2;
1637
            break;
1638
        case EXCP_DEBUG:
1639
            {
1640
                int sig;
1641

    
1642
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1643
                if (sig)
1644
                  {
1645
                    info.si_signo = sig;
1646
                    info.si_errno = 0;
1647
                    info.si_code = TARGET_TRAP_BRKPT;
1648
                    queue_signal(info.si_signo, &info);
1649
                  }
1650
            }
1651
            break;
1652
        default:
1653
            printf ("Unhandled trap: 0x%x\n", trapnr);
1654
            cpu_dump_state(env, stderr, fprintf, 0);
1655
            exit (1);
1656
        }
1657
        process_pending_signals (env);
1658
    }
1659
}
1660
#endif
1661

    
1662
#ifdef TARGET_M68K
1663

    
1664
void cpu_loop(CPUM68KState *env)
1665
{
1666
    int trapnr;
1667
    unsigned int n;
1668
    target_siginfo_t info;
1669
    TaskState *ts = env->opaque;
1670

    
1671
    for(;;) {
1672
        trapnr = cpu_m68k_exec(env);
1673
        switch(trapnr) {
1674
        case EXCP_ILLEGAL:
1675
            {
1676
                if (ts->sim_syscalls) {
1677
                    uint16_t nr;
1678
                    nr = lduw(env->pc + 2);
1679
                    env->pc += 4;
1680
                    do_m68k_simcall(env, nr);
1681
                } else {
1682
                    goto do_sigill;
1683
                }
1684
            }
1685
            break;
1686
        case EXCP_HALT_INSN:
1687
            /* Semihosing syscall.  */
1688
            env->pc += 4;
1689
            do_m68k_semihosting(env, env->dregs[0]);
1690
            break;
1691
        case EXCP_LINEA:
1692
        case EXCP_LINEF:
1693
        case EXCP_UNSUPPORTED:
1694
        do_sigill:
1695
            info.si_signo = SIGILL;
1696
            info.si_errno = 0;
1697
            info.si_code = TARGET_ILL_ILLOPN;
1698
            info._sifields._sigfault._addr = env->pc;
1699
            queue_signal(info.si_signo, &info);
1700
            break;
1701
        case EXCP_TRAP0:
1702
            {
1703
                ts->sim_syscalls = 0;
1704
                n = env->dregs[0];
1705
                env->pc += 2;
1706
                env->dregs[0] = do_syscall(env,
1707
                                          n,
1708
                                          env->dregs[1],
1709
                                          env->dregs[2],
1710
                                          env->dregs[3],
1711
                                          env->dregs[4],
1712
                                          env->dregs[5],
1713
                                          env->dregs[6]);
1714
            }
1715
            break;
1716
        case EXCP_INTERRUPT:
1717
            /* just indicate that signals should be handled asap */
1718
            break;
1719
        case EXCP_ACCESS:
1720
            {
1721
                info.si_signo = SIGSEGV;
1722
                info.si_errno = 0;
1723
                /* XXX: check env->error_code */
1724
                info.si_code = TARGET_SEGV_MAPERR;
1725
                info._sifields._sigfault._addr = env->mmu.ar;
1726
                queue_signal(info.si_signo, &info);
1727
            }
1728
            break;
1729
        case EXCP_DEBUG:
1730
            {
1731
                int sig;
1732

    
1733
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1734
                if (sig)
1735
                  {
1736
                    info.si_signo = sig;
1737
                    info.si_errno = 0;
1738
                    info.si_code = TARGET_TRAP_BRKPT;
1739
                    queue_signal(info.si_signo, &info);
1740
                  }
1741
            }
1742
            break;
1743
        default:
1744
            fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1745
                    trapnr);
1746
            cpu_dump_state(env, stderr, fprintf, 0);
1747
            abort();
1748
        }
1749
        process_pending_signals(env);
1750
    }
1751
}
1752
#endif /* TARGET_M68K */
1753

    
1754
#ifdef TARGET_ALPHA
1755
void cpu_loop (CPUState *env)
1756
{
1757
    int trapnr;
1758
    target_siginfo_t info;
1759

    
1760
    while (1) {
1761
        trapnr = cpu_alpha_exec (env);
1762

    
1763
        switch (trapnr) {
1764
        case EXCP_RESET:
1765
            fprintf(stderr, "Reset requested. Exit\n");
1766
            exit(1);
1767
            break;
1768
        case EXCP_MCHK:
1769
            fprintf(stderr, "Machine check exception. Exit\n");
1770
            exit(1);
1771
            break;
1772
        case EXCP_ARITH:
1773
            fprintf(stderr, "Arithmetic trap.\n");
1774
            exit(1);
1775
            break;
1776
        case EXCP_HW_INTERRUPT:
1777
            fprintf(stderr, "External interrupt. Exit\n");
1778
            exit(1);
1779
            break;
1780
        case EXCP_DFAULT:
1781
            fprintf(stderr, "MMU data fault\n");
1782
            exit(1);
1783
            break;
1784
        case EXCP_DTB_MISS_PAL:
1785
            fprintf(stderr, "MMU data TLB miss in PALcode\n");
1786
            exit(1);
1787
            break;
1788
        case EXCP_ITB_MISS:
1789
            fprintf(stderr, "MMU instruction TLB miss\n");
1790
            exit(1);
1791
            break;
1792
        case EXCP_ITB_ACV:
1793
            fprintf(stderr, "MMU instruction access violation\n");
1794
            exit(1);
1795
            break;
1796
        case EXCP_DTB_MISS_NATIVE:
1797
            fprintf(stderr, "MMU data TLB miss\n");
1798
            exit(1);
1799
            break;
1800
        case EXCP_UNALIGN:
1801
            fprintf(stderr, "Unaligned access\n");
1802
            exit(1);
1803
            break;
1804
        case EXCP_OPCDEC:
1805
            fprintf(stderr, "Invalid instruction\n");
1806
            exit(1);
1807
            break;
1808
        case EXCP_FEN:
1809
            fprintf(stderr, "Floating-point not allowed\n");
1810
            exit(1);
1811
            break;
1812
        case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1):
1813
            fprintf(stderr, "Call to PALcode\n");
1814
            call_pal(env, (trapnr >> 6) | 0x80);
1815
            break;
1816
        case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1):
1817
            fprintf(stderr, "Privileged call to PALcode\n");
1818
            exit(1);
1819
            break;
1820
        case EXCP_DEBUG:
1821
            {
1822
                int sig;
1823

    
1824
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1825
                if (sig)
1826
                  {
1827
                    info.si_signo = sig;
1828
                    info.si_errno = 0;
1829
                    info.si_code = TARGET_TRAP_BRKPT;
1830
                    queue_signal(info.si_signo, &info);
1831
                  }
1832
            }
1833
            break;
1834
        default:
1835
            printf ("Unhandled trap: 0x%x\n", trapnr);
1836
            cpu_dump_state(env, stderr, fprintf, 0);
1837
            exit (1);
1838
        }
1839
        process_pending_signals (env);
1840
    }
1841
}
1842
#endif /* TARGET_ALPHA */
1843

    
1844
void usage(void)
1845
{
1846
    printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2007 Fabrice Bellard\n"
1847
           "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] [-cpu model] program [arguments...]\n"
1848
           "Linux CPU emulator (compiled for %s emulation)\n"
1849
           "\n"
1850
           "-h                print this help\n"
1851
           "-g port           wait gdb connection to port\n"
1852
           "-L path           set the elf interpreter prefix (default=%s)\n"
1853
           "-s size           set the stack size in bytes (default=%ld)\n"
1854
           "-cpu model        select CPU (-cpu ? for list)\n"
1855
           "-drop-ld-preload  drop LD_PRELOAD for target process\n"
1856
           "\n"
1857
           "debug options:\n"
1858
#ifdef USE_CODE_COPY
1859
           "-no-code-copy   disable code copy acceleration\n"
1860
#endif
1861
           "-d options   activate log (logfile=%s)\n"
1862
           "-p pagesize  set the host page size to 'pagesize'\n",
1863
           TARGET_ARCH,
1864
           interp_prefix,
1865
           x86_stack_size,
1866
           DEBUG_LOGFILE);
1867
    _exit(1);
1868
}
1869

    
1870
/* XXX: currently only used for async signals (see signal.c) */
1871
CPUState *global_env;
1872

    
1873
/* used to free thread contexts */
1874
TaskState *first_task_state;
1875

    
1876
int main(int argc, char **argv)
1877
{
1878
    const char *filename;
1879
    const char *cpu_model;
1880
    struct target_pt_regs regs1, *regs = &regs1;
1881
    struct image_info info1, *info = &info1;
1882
    TaskState ts1, *ts = &ts1;
1883
    CPUState *env;
1884
    int optind;
1885
    const char *r;
1886
    int gdbstub_port = 0;
1887
    int drop_ld_preload = 0, environ_count = 0;
1888
    char **target_environ, **wrk, **dst;
1889

    
1890
    if (argc <= 1)
1891
        usage();
1892

    
1893
    /* init debug */
1894
    cpu_set_log_filename(DEBUG_LOGFILE);
1895

    
1896
    cpu_model = NULL;
1897
    optind = 1;
1898
    for(;;) {
1899
        if (optind >= argc)
1900
            break;
1901
        r = argv[optind];
1902
        if (r[0] != '-')
1903
            break;
1904
        optind++;
1905
        r++;
1906
        if (!strcmp(r, "-")) {
1907
            break;
1908
        } else if (!strcmp(r, "d")) {
1909
            int mask;
1910
            CPULogItem *item;
1911

    
1912
            if (optind >= argc)
1913
                break;
1914

    
1915
            r = argv[optind++];
1916
            mask = cpu_str_to_log_mask(r);
1917
            if (!mask) {
1918
                printf("Log items (comma separated):\n");
1919
                for(item = cpu_log_items; item->mask != 0; item++) {
1920
                    printf("%-10s %s\n", item->name, item->help);
1921
                }
1922
                exit(1);
1923
            }
1924
            cpu_set_log(mask);
1925
        } else if (!strcmp(r, "s")) {
1926
            r = argv[optind++];
1927
            x86_stack_size = strtol(r, (char **)&r, 0);
1928
            if (x86_stack_size <= 0)
1929
                usage();
1930
            if (*r == 'M')
1931
                x86_stack_size *= 1024 * 1024;
1932
            else if (*r == 'k' || *r == 'K')
1933
                x86_stack_size *= 1024;
1934
        } else if (!strcmp(r, "L")) {
1935
            interp_prefix = argv[optind++];
1936
        } else if (!strcmp(r, "p")) {
1937
            qemu_host_page_size = atoi(argv[optind++]);
1938
            if (qemu_host_page_size == 0 ||
1939
                (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
1940
                fprintf(stderr, "page size must be a power of two\n");
1941
                exit(1);
1942
            }
1943
        } else if (!strcmp(r, "g")) {
1944
            gdbstub_port = atoi(argv[optind++]);
1945
        } else if (!strcmp(r, "r")) {
1946
            qemu_uname_release = argv[optind++];
1947
        } else if (!strcmp(r, "cpu")) {
1948
            cpu_model = argv[optind++];
1949
            if (strcmp(cpu_model, "?") == 0) {
1950
/* XXX: implement xxx_cpu_list for targets that still miss it */
1951
#if defined(cpu_list)
1952
                    cpu_list(stdout, &fprintf);
1953
#endif
1954
                _exit(1);
1955
            }
1956
        } else if (!strcmp(r, "drop-ld-preload")) {
1957
            drop_ld_preload = 1;
1958
        } else
1959
#ifdef USE_CODE_COPY
1960
        if (!strcmp(r, "no-code-copy")) {
1961
            code_copy_enabled = 0;
1962
        } else
1963
#endif
1964
        {
1965
            usage();
1966
        }
1967
    }
1968
    if (optind >= argc)
1969
        usage();
1970
    filename = argv[optind];
1971

    
1972
    /* Zero out regs */
1973
    memset(regs, 0, sizeof(struct target_pt_regs));
1974

    
1975
    /* Zero out image_info */
1976
    memset(info, 0, sizeof(struct image_info));
1977

    
1978
    /* Scan interp_prefix dir for replacement files. */
1979
    init_paths(interp_prefix);
1980

    
1981
#if defined(TARGET_I386)
1982
    /* must be done before cpu_init() for x86 XXX: suppress this hack
1983
       by adding a new parameter to cpu_init and by suppressing
1984
       cpu_xxx_register() */
1985
    if (cpu_model == NULL) {
1986
#ifdef TARGET_X86_64
1987
        cpu_model = "qemu64";
1988
#else
1989
        cpu_model = "qemu32";
1990
#endif
1991
    }
1992
    if (x86_find_cpu_by_name(cpu_model)) {
1993
        fprintf(stderr, "Unable to find x86 CPU definition\n");
1994
        exit(1);
1995
    }
1996
#endif
1997

    
1998
    /* NOTE: we need to init the CPU at this stage to get
1999
       qemu_host_page_size */
2000
    env = cpu_init();
2001
    global_env = env;
2002

    
2003
    if(getenv("QEMU_STRACE") ){
2004
      do_strace=1;
2005
    }
2006

    
2007
    wrk = environ;
2008
    while (*(wrk++))
2009
        environ_count++;
2010

    
2011
    target_environ = malloc((environ_count + 1) * sizeof(char *));
2012
    if (!target_environ)
2013
        abort();
2014
    for (wrk = environ, dst = target_environ; *wrk; wrk++) {
2015
        if (drop_ld_preload && !strncmp(*wrk, "LD_PRELOAD=", 11))
2016
            continue;
2017
        *(dst++) = strdup(*wrk);
2018
    }
2019
    *dst = NULL; /* NULL terminate target_environ */
2020

    
2021
    if (loader_exec(filename, argv+optind, target_environ, regs, info) != 0) {
2022
        printf("Error loading %s\n", filename);
2023
        _exit(1);
2024
    }
2025

    
2026
    for (wrk = target_environ; *wrk; wrk++) {
2027
        free(*wrk);
2028
    }
2029

    
2030
    free(target_environ);
2031

    
2032
    if (loglevel) {
2033
        page_dump(logfile);
2034

    
2035
        fprintf(logfile, "start_brk   0x" TARGET_FMT_lx "\n", info->start_brk);
2036
        fprintf(logfile, "end_code    0x" TARGET_FMT_lx "\n", info->end_code);
2037
        fprintf(logfile, "start_code  0x" TARGET_FMT_lx "\n",
2038
                info->start_code);
2039
        fprintf(logfile, "start_data  0x" TARGET_FMT_lx "\n",
2040
                info->start_data);
2041
        fprintf(logfile, "end_data    0x" TARGET_FMT_lx "\n", info->end_data);
2042
        fprintf(logfile, "start_stack 0x" TARGET_FMT_lx "\n",
2043
                info->start_stack);
2044
        fprintf(logfile, "brk         0x" TARGET_FMT_lx "\n", info->brk);
2045
        fprintf(logfile, "entry       0x" TARGET_FMT_lx "\n", info->entry);
2046
    }
2047

    
2048
    target_set_brk(info->brk);
2049
    syscall_init();
2050
    signal_init();
2051

    
2052
    /* build Task State */
2053
    memset(ts, 0, sizeof(TaskState));
2054
    env->opaque = ts;
2055
    ts->used = 1;
2056
    ts->info = info;
2057
    env->user_mode_only = 1;
2058

    
2059
#if defined(TARGET_I386)
2060
    cpu_x86_set_cpl(env, 3);
2061

    
2062
    env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
2063
    env->hflags |= HF_PE_MASK;
2064
    if (env->cpuid_features & CPUID_SSE) {
2065
        env->cr[4] |= CR4_OSFXSR_MASK;
2066
        env->hflags |= HF_OSFXSR_MASK;
2067
    }
2068

    
2069
    /* flags setup : we activate the IRQs by default as in user mode */
2070
    env->eflags |= IF_MASK;
2071

    
2072
    /* linux register setup */
2073
#if defined(TARGET_X86_64)
2074
    env->regs[R_EAX] = regs->rax;
2075
    env->regs[R_EBX] = regs->rbx;
2076
    env->regs[R_ECX] = regs->rcx;
2077
    env->regs[R_EDX] = regs->rdx;
2078
    env->regs[R_ESI] = regs->rsi;
2079
    env->regs[R_EDI] = regs->rdi;
2080
    env->regs[R_EBP] = regs->rbp;
2081
    env->regs[R_ESP] = regs->rsp;
2082
    env->eip = regs->rip;
2083
#else
2084
    env->regs[R_EAX] = regs->eax;
2085
    env->regs[R_EBX] = regs->ebx;
2086
    env->regs[R_ECX] = regs->ecx;
2087
    env->regs[R_EDX] = regs->edx;
2088
    env->regs[R_ESI] = regs->esi;
2089
    env->regs[R_EDI] = regs->edi;
2090
    env->regs[R_EBP] = regs->ebp;
2091
    env->regs[R_ESP] = regs->esp;
2092
    env->eip = regs->eip;
2093
#endif
2094

    
2095
    /* linux interrupt setup */
2096
    env->idt.base = h2g(idt_table);
2097
    env->idt.limit = sizeof(idt_table) - 1;
2098
    set_idt(0, 0);
2099
    set_idt(1, 0);
2100
    set_idt(2, 0);
2101
    set_idt(3, 3);
2102
    set_idt(4, 3);
2103
    set_idt(5, 3);
2104
    set_idt(6, 0);
2105
    set_idt(7, 0);
2106
    set_idt(8, 0);
2107
    set_idt(9, 0);
2108
    set_idt(10, 0);
2109
    set_idt(11, 0);
2110
    set_idt(12, 0);
2111
    set_idt(13, 0);
2112
    set_idt(14, 0);
2113
    set_idt(15, 0);
2114
    set_idt(16, 0);
2115
    set_idt(17, 0);
2116
    set_idt(18, 0);
2117
    set_idt(19, 0);
2118
    set_idt(0x80, 3);
2119

    
2120
    /* linux segment setup */
2121
    env->gdt.base = h2g(gdt_table);
2122
    env->gdt.limit = sizeof(gdt_table) - 1;
2123
    write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
2124
             DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
2125
             (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
2126
    write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
2127
             DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
2128
             (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
2129
    cpu_x86_load_seg(env, R_CS, __USER_CS);
2130
    cpu_x86_load_seg(env, R_DS, __USER_DS);
2131
    cpu_x86_load_seg(env, R_ES, __USER_DS);
2132
    cpu_x86_load_seg(env, R_SS, __USER_DS);
2133
    cpu_x86_load_seg(env, R_FS, __USER_DS);
2134
    cpu_x86_load_seg(env, R_GS, __USER_DS);
2135

    
2136
    /* This hack makes Wine work... */
2137
    env->segs[R_FS].selector = 0;
2138
#elif defined(TARGET_ARM)
2139
    {
2140
        int i;
2141
        if (cpu_model == NULL)
2142
            cpu_model = "arm926";
2143
        cpu_arm_set_model(env, cpu_model);
2144
        cpsr_write(env, regs->uregs[16], 0xffffffff);
2145
        for(i = 0; i < 16; i++) {
2146
            env->regs[i] = regs->uregs[i];
2147
        }
2148
    }
2149
#elif defined(TARGET_SPARC)
2150
    {
2151
        int i;
2152
        const sparc_def_t *def;
2153
#ifdef TARGET_SPARC64
2154
        if (cpu_model == NULL)
2155
            cpu_model = "TI UltraSparc II";
2156
#else
2157
        if (cpu_model == NULL)
2158
            cpu_model = "Fujitsu MB86904";
2159
#endif
2160
        sparc_find_by_name(cpu_model, &def);
2161
        if (def == NULL) {
2162
            fprintf(stderr, "Unable to find Sparc CPU definition\n");
2163
            exit(1);
2164
        }
2165
        cpu_sparc_register(env, def, 0);
2166
        env->pc = regs->pc;
2167
        env->npc = regs->npc;
2168
        env->y = regs->y;
2169
        for(i = 0; i < 8; i++)
2170
            env->gregs[i] = regs->u_regs[i];
2171
        for(i = 0; i < 8; i++)
2172
            env->regwptr[i] = regs->u_regs[i + 8];
2173
    }
2174
#elif defined(TARGET_PPC)
2175
    {
2176
        ppc_def_t *def;
2177
        int i;
2178

    
2179
        /* Choose and initialise CPU */
2180
        if (cpu_model == NULL)
2181
            cpu_model = "750";
2182
        ppc_find_by_name(cpu_model, &def);
2183
        if (def == NULL) {
2184
            cpu_abort(env,
2185
                      "Unable to find PowerPC CPU definition\n");
2186
        }
2187
        cpu_ppc_register(env, def);
2188
        cpu_ppc_reset(env);
2189
#if defined(TARGET_PPC64)
2190
#if defined(TARGET_ABI32)
2191
        env->msr &= ~((target_ulong)1 << MSR_SF);
2192
#else
2193
        env->msr |= (target_ulong)1 << MSR_SF;
2194
#endif
2195
#endif
2196
        env->nip = regs->nip;
2197
        for(i = 0; i < 32; i++) {
2198
            env->gpr[i] = regs->gpr[i];
2199
        }
2200
    }
2201
#elif defined(TARGET_M68K)
2202
    {
2203
        if (cpu_model == NULL)
2204
            cpu_model = "any";
2205
        if (cpu_m68k_set_model(env, cpu_model)) {
2206
            cpu_abort(cpu_single_env,
2207
                      "Unable to find m68k CPU definition\n");
2208
        }
2209
        env->pc = regs->pc;
2210
        env->dregs[0] = regs->d0;
2211
        env->dregs[1] = regs->d1;
2212
        env->dregs[2] = regs->d2;
2213
        env->dregs[3] = regs->d3;
2214
        env->dregs[4] = regs->d4;
2215
        env->dregs[5] = regs->d5;
2216
        env->dregs[6] = regs->d6;
2217
        env->dregs[7] = regs->d7;
2218
        env->aregs[0] = regs->a0;
2219
        env->aregs[1] = regs->a1;
2220
        env->aregs[2] = regs->a2;
2221
        env->aregs[3] = regs->a3;
2222
        env->aregs[4] = regs->a4;
2223
        env->aregs[5] = regs->a5;
2224
        env->aregs[6] = regs->a6;
2225
        env->aregs[7] = regs->usp;
2226
        env->sr = regs->sr;
2227
        ts->sim_syscalls = 1;
2228
    }
2229
#elif defined(TARGET_MIPS)
2230
    {
2231
        mips_def_t *def;
2232
        int i;
2233

    
2234
        /* Choose and initialise CPU */
2235
        if (cpu_model == NULL)
2236
#if defined(TARGET_MIPSN32) || defined(TARGET_MIPS64)
2237
            cpu_model = "20Kc";
2238
#else
2239
            cpu_model = "24Kf";
2240
#endif
2241
        mips_find_by_name(cpu_model, &def);
2242
        if (def == NULL)
2243
            cpu_abort(env, "Unable to find MIPS CPU definition\n");
2244
        cpu_mips_register(env, def);
2245

    
2246
        for(i = 0; i < 32; i++) {
2247
            env->gpr[i][env->current_tc] = regs->regs[i];
2248
        }
2249
        env->PC[env->current_tc] = regs->cp0_epc;
2250
    }
2251
#elif defined(TARGET_SH4)
2252
    {
2253
        int i;
2254

    
2255
        for(i = 0; i < 16; i++) {
2256
            env->gregs[i] = regs->regs[i];
2257
        }
2258
        env->pc = regs->pc;
2259
    }
2260
#elif defined(TARGET_ALPHA)
2261
    {
2262
        int i;
2263

    
2264
        for(i = 0; i < 28; i++) {
2265
            env->ir[i] = ((abi_ulong *)regs)[i];
2266
        }
2267
        env->ipr[IPR_USP] = regs->usp;
2268
        env->ir[30] = regs->usp;
2269
        env->pc = regs->pc;
2270
        env->unique = regs->unique;
2271
    }
2272
#elif defined(TARGET_CRIS)
2273
    {
2274
            env->regs[0] = regs->r0;
2275
            env->regs[1] = regs->r1;
2276
            env->regs[2] = regs->r2;
2277
            env->regs[3] = regs->r3;
2278
            env->regs[4] = regs->r4;
2279
            env->regs[5] = regs->r5;
2280
            env->regs[6] = regs->r6;
2281
            env->regs[7] = regs->r7;
2282
            env->regs[8] = regs->r8;
2283
            env->regs[9] = regs->r9;
2284
            env->regs[10] = regs->r10;
2285
            env->regs[11] = regs->r11;
2286
            env->regs[12] = regs->r12;
2287
            env->regs[13] = regs->r13;
2288
            env->regs[14] = info->start_stack;
2289
            env->regs[15] = regs->acr;            
2290
            env->pc = regs->erp;
2291
    }
2292
#else
2293
#error unsupported target CPU
2294
#endif
2295

    
2296
#if defined(TARGET_ARM) || defined(TARGET_M68K)
2297
    ts->stack_base = info->start_stack;
2298
    ts->heap_base = info->brk;
2299
    /* This will be filled in on the first SYS_HEAPINFO call.  */
2300
    ts->heap_limit = 0;
2301
#endif
2302

    
2303
    if (gdbstub_port) {
2304
        gdbserver_start (gdbstub_port);
2305
        gdb_handlesig(env, 0);
2306
    }
2307
    cpu_loop(env);
2308
    /* never exits */
2309
    return 0;
2310
}