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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
#ifdef __APPLE__
32
#include <crt_externs.h>
33
# define environ  (*_NSGetEnviron())
34
#endif
35

    
36
static const char *interp_prefix = CONFIG_QEMU_PREFIX;
37
const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
38

    
39
#if defined(__i386__) && !defined(CONFIG_STATIC)
40
/* Force usage of an ELF interpreter even if it is an ELF shared
41
   object ! */
42
const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
43
#endif
44

    
45
/* for recent libc, we add these dummy symbols which are not declared
46
   when generating a linked object (bug in ld ?) */
47
#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC)
48
long __preinit_array_start[0];
49
long __preinit_array_end[0];
50
long __init_array_start[0];
51
long __init_array_end[0];
52
long __fini_array_start[0];
53
long __fini_array_end[0];
54
#endif
55

    
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 */
59
unsigned long x86_stack_size = 512 * 1024;
60

    
61
void 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

    
70
void cpu_outb(CPUState *env, int addr, int val)
71
{
72
    fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
73
}
74

    
75
void cpu_outw(CPUState *env, int addr, int val)
76
{
77
    fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
78
}
79

    
80
void cpu_outl(CPUState *env, int addr, int val)
81
{
82
    fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
83
}
84

    
85
int cpu_inb(CPUState *env, int addr)
86
{
87
    fprintf(stderr, "inb: port=0x%04x\n", addr);
88
    return 0;
89
}
90

    
91
int cpu_inw(CPUState *env, int addr)
92
{
93
    fprintf(stderr, "inw: port=0x%04x\n", addr);
94
    return 0;
95
}
96

    
97
int cpu_inl(CPUState *env, int addr)
98
{
99
    fprintf(stderr, "inl: port=0x%04x\n", addr);
100
    return 0;
101
}
102

    
103
int cpu_get_pic_interrupt(CPUState *env)
104
{
105
    return -1;
106
}
107

    
108
/* timers for rdtsc */
109

    
110
#if 0
111

112
static uint64_t emu_time;
113

114
int64_t cpu_get_real_ticks(void)
115
{
116
    return emu_time++;
117
}
118

119
#endif
120

    
121
#ifdef TARGET_I386
122
/***********************************************************/
123
/* CPUX86 core interface */
124

    
125
void cpu_smm_update(CPUState *env)
126
{
127
}
128

    
129
uint64_t cpu_get_tsc(CPUX86State *env)
130
{
131
    return cpu_get_real_ticks();
132
}
133

    
134
static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
135
                     int flags)
136
{
137
    unsigned int e1, e2;
138
    uint32_t *p;
139
    e1 = (addr << 16) | (limit & 0xffff);
140
    e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
141
    e2 |= flags;
142
    p = ptr;
143
    p[0] = tswapl(e1);
144
    p[1] = tswapl(e2);
145
}
146

    
147
static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
148
                     unsigned long addr, unsigned int sel)
149
{
150
    unsigned int e1, e2;
151
    uint32_t *p;
152
    e1 = (addr & 0xffff) | (sel << 16);
153
    e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
154
    p = ptr;
155
    p[0] = tswapl(e1);
156
    p[1] = tswapl(e2);
157
}
158

    
159
uint64_t gdt_table[6];
160
uint64_t idt_table[256];
161

    
162
/* only dpl matters as we do only user space emulation */
163
static void set_idt(int n, unsigned int dpl)
164
{
165
    set_gate(idt_table + n, 0, dpl, 0, 0);
166
}
167

    
168
void cpu_loop(CPUX86State *env)
169
{
170
    int trapnr;
171
    target_ulong pc;
172
    target_siginfo_t info;
173

    
174
    for(;;) {
175
        trapnr = cpu_x86_exec(env);
176
        switch(trapnr) {
177
        case 0x80:
178
            /* linux syscall */
179
            env->regs[R_EAX] = do_syscall(env,
180
                                          env->regs[R_EAX],
181
                                          env->regs[R_EBX],
182
                                          env->regs[R_ECX],
183
                                          env->regs[R_EDX],
184
                                          env->regs[R_ESI],
185
                                          env->regs[R_EDI],
186
                                          env->regs[R_EBP]);
187
            break;
188
        case EXCP0B_NOSEG:
189
        case EXCP0C_STACK:
190
            info.si_signo = SIGBUS;
191
            info.si_errno = 0;
192
            info.si_code = TARGET_SI_KERNEL;
193
            info._sifields._sigfault._addr = 0;
194
            queue_signal(info.si_signo, &info);
195
            break;
196
        case EXCP0D_GPF:
197
#ifndef TARGET_X86_64
198
            if (env->eflags & VM_MASK) {
199
                handle_vm86_fault(env);
200
            } else
201
#endif
202
            {
203
                info.si_signo = SIGSEGV;
204
                info.si_errno = 0;
205
                info.si_code = TARGET_SI_KERNEL;
206
                info._sifields._sigfault._addr = 0;
207
                queue_signal(info.si_signo, &info);
208
            }
209
            break;
210
        case EXCP0E_PAGE:
211
            info.si_signo = SIGSEGV;
212
            info.si_errno = 0;
213
            if (!(env->error_code & 1))
214
                info.si_code = TARGET_SEGV_MAPERR;
215
            else
216
                info.si_code = TARGET_SEGV_ACCERR;
217
            info._sifields._sigfault._addr = env->cr[2];
218
            queue_signal(info.si_signo, &info);
219
            break;
220
        case EXCP00_DIVZ:
221
#ifndef TARGET_X86_64
222
            if (env->eflags & VM_MASK) {
223
                handle_vm86_trap(env, trapnr);
224
            } else
225
#endif
226
            {
227
                /* division by zero */
228
                info.si_signo = SIGFPE;
229
                info.si_errno = 0;
230
                info.si_code = TARGET_FPE_INTDIV;
231
                info._sifields._sigfault._addr = env->eip;
232
                queue_signal(info.si_signo, &info);
233
            }
234
            break;
235
        case EXCP01_SSTP:
236
        case EXCP03_INT3:
237
#ifndef TARGET_X86_64
238
            if (env->eflags & VM_MASK) {
239
                handle_vm86_trap(env, trapnr);
240
            } else
241
#endif
242
            {
243
                info.si_signo = SIGTRAP;
244
                info.si_errno = 0;
245
                if (trapnr == EXCP01_SSTP) {
246
                    info.si_code = TARGET_TRAP_BRKPT;
247
                    info._sifields._sigfault._addr = env->eip;
248
                } else {
249
                    info.si_code = TARGET_SI_KERNEL;
250
                    info._sifields._sigfault._addr = 0;
251
                }
252
                queue_signal(info.si_signo, &info);
253
            }
254
            break;
255
        case EXCP04_INTO:
256
        case EXCP05_BOUND:
257
#ifndef TARGET_X86_64
258
            if (env->eflags & VM_MASK) {
259
                handle_vm86_trap(env, trapnr);
260
            } else
261
#endif
262
            {
263
                info.si_signo = SIGSEGV;
264
                info.si_errno = 0;
265
                info.si_code = TARGET_SI_KERNEL;
266
                info._sifields._sigfault._addr = 0;
267
                queue_signal(info.si_signo, &info);
268
            }
269
            break;
270
        case EXCP06_ILLOP:
271
            info.si_signo = SIGILL;
272
            info.si_errno = 0;
273
            info.si_code = TARGET_ILL_ILLOPN;
274
            info._sifields._sigfault._addr = env->eip;
275
            queue_signal(info.si_signo, &info);
276
            break;
277
        case EXCP_INTERRUPT:
278
            /* just indicate that signals should be handled asap */
279
            break;
280
        case EXCP_DEBUG:
281
            {
282
                int sig;
283

    
284
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
285
                if (sig)
286
                  {
287
                    info.si_signo = sig;
288
                    info.si_errno = 0;
289
                    info.si_code = TARGET_TRAP_BRKPT;
290
                    queue_signal(info.si_signo, &info);
291
                  }
292
            }
293
            break;
294
        default:
295
            pc = env->segs[R_CS].base + env->eip;
296
            fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
297
                    (long)pc, trapnr);
298
            abort();
299
        }
300
        process_pending_signals(env);
301
    }
302
}
303
#endif
304

    
305
#ifdef TARGET_ARM
306

    
307
/* XXX: find a better solution */
308
extern void tb_invalidate_page_range(target_ulong start, target_ulong end);
309

    
310
static void arm_cache_flush(target_ulong start, target_ulong last)
311
{
312
    target_ulong addr, last1;
313

    
314
    if (last < start)
315
        return;
316
    addr = start;
317
    for(;;) {
318
        last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
319
        if (last1 > last)
320
            last1 = last;
321
        tb_invalidate_page_range(addr, last1 + 1);
322
        if (last1 == last)
323
            break;
324
        addr = last1 + 1;
325
    }
326
}
327

    
328
void cpu_loop(CPUARMState *env)
329
{
330
    int trapnr;
331
    unsigned int n, insn;
332
    target_siginfo_t info;
333
    uint32_t addr;
334

    
335
    for(;;) {
336
        trapnr = cpu_arm_exec(env);
337
        switch(trapnr) {
338
        case EXCP_UDEF:
339
            {
340
                TaskState *ts = env->opaque;
341
                uint32_t opcode;
342

    
343
                /* we handle the FPU emulation here, as Linux */
344
                /* we get the opcode */
345
                opcode = tget32(env->regs[15]);
346

    
347
                if (EmulateAll(opcode, &ts->fpa, env) == 0) {
348
                    info.si_signo = SIGILL;
349
                    info.si_errno = 0;
350
                    info.si_code = TARGET_ILL_ILLOPN;
351
                    info._sifields._sigfault._addr = env->regs[15];
352
                    queue_signal(info.si_signo, &info);
353
                } else {
354
                    /* increment PC */
355
                    env->regs[15] += 4;
356
                }
357
            }
358
            break;
359
        case EXCP_SWI:
360
        case EXCP_BKPT:
361
            {
362
                env->eabi = 1;
363
                /* system call */
364
                if (trapnr == EXCP_BKPT) {
365
                    if (env->thumb) {
366
                        insn = tget16(env->regs[15]);
367
                        n = insn & 0xff;
368
                        env->regs[15] += 2;
369
                    } else {
370
                        insn = tget32(env->regs[15]);
371
                        n = (insn & 0xf) | ((insn >> 4) & 0xff0);
372
                        env->regs[15] += 4;
373
                    }
374
                } else {
375
                    if (env->thumb) {
376
                        insn = tget16(env->regs[15] - 2);
377
                        n = insn & 0xff;
378
                    } else {
379
                        insn = tget32(env->regs[15] - 4);
380
                        n = insn & 0xffffff;
381
                    }
382
                }
383

    
384
                if (n == ARM_NR_cacheflush) {
385
                    arm_cache_flush(env->regs[0], env->regs[1]);
386
                } else if (n == ARM_NR_semihosting
387
                           || n == ARM_NR_thumb_semihosting) {
388
                    env->regs[0] = do_arm_semihosting (env);
389
                } else if (n == 0 || n >= ARM_SYSCALL_BASE
390
                           || (env->thumb && n == ARM_THUMB_SYSCALL)) {
391
                    /* linux syscall */
392
                    if (env->thumb || n == 0) {
393
                        n = env->regs[7];
394
                    } else {
395
                        n -= ARM_SYSCALL_BASE;
396
                        env->eabi = 0;
397
                    }
398
                    env->regs[0] = do_syscall(env,
399
                                              n,
400
                                              env->regs[0],
401
                                              env->regs[1],
402
                                              env->regs[2],
403
                                              env->regs[3],
404
                                              env->regs[4],
405
                                              env->regs[5]);
406
                } else {
407
                    goto error;
408
                }
409
            }
410
            break;
411
        case EXCP_INTERRUPT:
412
            /* just indicate that signals should be handled asap */
413
            break;
414
        case EXCP_PREFETCH_ABORT:
415
            addr = env->cp15.c6_data;
416
            goto do_segv;
417
        case EXCP_DATA_ABORT:
418
            addr = env->cp15.c6_insn;
419
            goto do_segv;
420
        do_segv:
421
            {
422
                info.si_signo = SIGSEGV;
423
                info.si_errno = 0;
424
                /* XXX: check env->error_code */
425
                info.si_code = TARGET_SEGV_MAPERR;
426
                info._sifields._sigfault._addr = addr;
427
                queue_signal(info.si_signo, &info);
428
            }
429
            break;
430
        case EXCP_DEBUG:
431
            {
432
                int sig;
433

    
434
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
435
                if (sig)
436
                  {
437
                    info.si_signo = sig;
438
                    info.si_errno = 0;
439
                    info.si_code = TARGET_TRAP_BRKPT;
440
                    queue_signal(info.si_signo, &info);
441
                  }
442
            }
443
            break;
444
        default:
445
        error:
446
            fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
447
                    trapnr);
448
            cpu_dump_state(env, stderr, fprintf, 0);
449
            abort();
450
        }
451
        process_pending_signals(env);
452
    }
453
}
454

    
455
#endif
456

    
457
#ifdef TARGET_SPARC
458

    
459
//#define DEBUG_WIN
460

    
461
/* WARNING: dealing with register windows _is_ complicated. More info
462
   can be found at http://www.sics.se/~psm/sparcstack.html */
463
static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
464
{
465
    index = (index + cwp * 16) & (16 * NWINDOWS - 1);
466
    /* wrap handling : if cwp is on the last window, then we use the
467
       registers 'after' the end */
468
    if (index < 8 && env->cwp == (NWINDOWS - 1))
469
        index += (16 * NWINDOWS);
470
    return index;
471
}
472

    
473
/* save the register window 'cwp1' */
474
static inline void save_window_offset(CPUSPARCState *env, int cwp1)
475
{
476
    unsigned int i;
477
    target_ulong sp_ptr;
478

    
479
    sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
480
#if defined(DEBUG_WIN)
481
    printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
482
           (int)sp_ptr, cwp1);
483
#endif
484
    for(i = 0; i < 16; i++) {
485
        tputl(sp_ptr, env->regbase[get_reg_index(env, cwp1, 8 + i)]);
486
        sp_ptr += sizeof(target_ulong);
487
    }
488
}
489

    
490
static void save_window(CPUSPARCState *env)
491
{
492
#ifndef TARGET_SPARC64
493
    unsigned int new_wim;
494
    new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
495
        ((1LL << NWINDOWS) - 1);
496
    save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
497
    env->wim = new_wim;
498
#else
499
    save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
500
    env->cansave++;
501
    env->canrestore--;
502
#endif
503
}
504

    
505
static void restore_window(CPUSPARCState *env)
506
{
507
    unsigned int new_wim, i, cwp1;
508
    target_ulong sp_ptr;
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);
515
    sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
516
#if defined(DEBUG_WIN)
517
    printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
518
           (int)sp_ptr, cwp1);
519
#endif
520
    for(i = 0; i < 16; i++) {
521
        env->regbase[get_reg_index(env, cwp1, 8 + i)] = tgetl(sp_ptr);
522
        sp_ptr += sizeof(target_ulong);
523
    }
524
    env->wim = new_wim;
525
#ifdef TARGET_SPARC64
526
    env->canrestore++;
527
    if (env->cleanwin < NWINDOWS - 1)
528
        env->cleanwin++;
529
    env->cansave--;
530
#endif
531
}
532

    
533
static void flush_windows(CPUSPARCState *env)
534
{
535
    int offset, cwp1;
536

    
537
    offset = 1;
538
    for(;;) {
539
        /* if restore would invoke restore_window(), then we can stop */
540
        cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
541
        if (env->wim & (1 << cwp1))
542
            break;
543
        save_window_offset(env, cwp1);
544
        offset++;
545
    }
546
    /* set wim so that restore will reload the registers */
547
    cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
548
    env->wim = 1 << cwp1;
549
#if defined(DEBUG_WIN)
550
    printf("flush_windows: nb=%d\n", offset - 1);
551
#endif
552
}
553

    
554
void cpu_loop (CPUSPARCState *env)
555
{
556
    int trapnr, ret;
557
    target_siginfo_t info;
558

    
559
    while (1) {
560
        trapnr = cpu_sparc_exec (env);
561

    
562
        switch (trapnr) {
563
#ifndef TARGET_SPARC64
564
        case 0x88:
565
        case 0x90:
566
#else
567
        case 0x110:
568
        case 0x16d:
569
#endif
570
            ret = do_syscall (env, env->gregs[1],
571
                              env->regwptr[0], env->regwptr[1],
572
                              env->regwptr[2], env->regwptr[3],
573
                              env->regwptr[4], env->regwptr[5]);
574
            if ((unsigned int)ret >= (unsigned int)(-515)) {
575
#ifdef TARGET_SPARC64
576
                env->xcc |= PSR_CARRY;
577
#else
578
                env->psr |= PSR_CARRY;
579
#endif
580
                ret = -ret;
581
            } else {
582
#ifdef TARGET_SPARC64
583
                env->xcc &= ~PSR_CARRY;
584
#else
585
                env->psr &= ~PSR_CARRY;
586
#endif
587
            }
588
            env->regwptr[0] = ret;
589
            /* next instruction */
590
            env->pc = env->npc;
591
            env->npc = env->npc + 4;
592
            break;
593
        case 0x83: /* flush windows */
594
            flush_windows(env);
595
            /* next instruction */
596
            env->pc = env->npc;
597
            env->npc = env->npc + 4;
598
            break;
599
#ifndef TARGET_SPARC64
600
        case TT_WIN_OVF: /* window overflow */
601
            save_window(env);
602
            break;
603
        case TT_WIN_UNF: /* window underflow */
604
            restore_window(env);
605
            break;
606
        case TT_TFAULT:
607
        case TT_DFAULT:
608
            {
609
                info.si_signo = SIGSEGV;
610
                info.si_errno = 0;
611
                /* XXX: check env->error_code */
612
                info.si_code = TARGET_SEGV_MAPERR;
613
                info._sifields._sigfault._addr = env->mmuregs[4];
614
                queue_signal(info.si_signo, &info);
615
            }
616
            break;
617
#else
618
        case TT_SPILL: /* window overflow */
619
            save_window(env);
620
            break;
621
        case TT_FILL: /* window underflow */
622
            restore_window(env);
623
            break;
624
        case TT_TFAULT:
625
        case TT_DFAULT:
626
            {
627
                info.si_signo = SIGSEGV;
628
                info.si_errno = 0;
629
                /* XXX: check env->error_code */
630
                info.si_code = TARGET_SEGV_MAPERR;
631
                if (trapnr == TT_DFAULT)
632
                    info._sifields._sigfault._addr = env->dmmuregs[4];
633
                else
634
                    info._sifields._sigfault._addr = env->tpc[env->tl];
635
                queue_signal(info.si_signo, &info);
636
            }
637
            break;
638
        case 0x16e:
639
            flush_windows(env);
640
            sparc64_get_context(env);
641
            break;
642
        case 0x16f:
643
            flush_windows(env);
644
            sparc64_set_context(env);
645
            break;
646
#endif
647
        case EXCP_INTERRUPT:
648
            /* just indicate that signals should be handled asap */
649
            break;
650
        case EXCP_DEBUG:
651
            {
652
                int sig;
653

    
654
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
655
                if (sig)
656
                  {
657
                    info.si_signo = sig;
658
                    info.si_errno = 0;
659
                    info.si_code = TARGET_TRAP_BRKPT;
660
                    queue_signal(info.si_signo, &info);
661
                  }
662
            }
663
            break;
664
        default:
665
            printf ("Unhandled trap: 0x%x\n", trapnr);
666
            cpu_dump_state(env, stderr, fprintf, 0);
667
            exit (1);
668
        }
669
        process_pending_signals (env);
670
    }
671
}
672

    
673
#endif
674

    
675
#ifdef TARGET_PPC
676
static inline uint64_t cpu_ppc_get_tb (CPUState *env)
677
{
678
    /* TO FIX */
679
    return 0;
680
}
681

    
682
uint32_t cpu_ppc_load_tbl (CPUState *env)
683
{
684
    return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
685
}
686

    
687
uint32_t cpu_ppc_load_tbu (CPUState *env)
688
{
689
    return cpu_ppc_get_tb(env) >> 32;
690
}
691

    
692
uint32_t cpu_ppc_load_atbl (CPUState *env)
693
{
694
    return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
695
}
696

    
697
uint32_t cpu_ppc_load_atbu (CPUState *env)
698
{
699
    return cpu_ppc_get_tb(env) >> 32;
700
}
701

    
702
uint32_t cpu_ppc601_load_rtcu (CPUState *env)
703
__attribute__ (( alias ("cpu_ppc_load_tbu") ));
704

    
705
uint32_t cpu_ppc601_load_rtcl (CPUState *env)
706
{
707
    return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
708
}
709

    
710
/* XXX: to be fixed */
711
int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, target_ulong *valp)
712
{
713
    return -1;
714
}
715

    
716
int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, target_ulong val)
717
{
718
    return -1;
719
}
720

    
721
#define EXCP_DUMP(env, fmt, args...)                                         \
722
do {                                                                          \
723
    fprintf(stderr, fmt , ##args);                                            \
724
    cpu_dump_state(env, stderr, fprintf, 0);                                  \
725
    if (loglevel != 0) {                                                      \
726
        fprintf(logfile, fmt , ##args);                                       \
727
        cpu_dump_state(env, logfile, fprintf, 0);                             \
728
    }                                                                         \
729
} while (0)
730

    
731
void cpu_loop(CPUPPCState *env)
732
{
733
    target_siginfo_t info;
734
    int trapnr;
735
    uint32_t ret;
736

    
737
    for(;;) {
738
        trapnr = cpu_ppc_exec(env);
739
        switch(trapnr) {
740
        case POWERPC_EXCP_NONE:
741
            /* Just go on */
742
            break;
743
        case POWERPC_EXCP_CRITICAL: /* Critical input                        */
744
            cpu_abort(env, "Critical interrupt while in user mode. "
745
                      "Aborting\n");
746
            break;
747
        case POWERPC_EXCP_MCHECK:   /* Machine check exception               */
748
            cpu_abort(env, "Machine check exception while in user mode. "
749
                      "Aborting\n");
750
            break;
751
        case POWERPC_EXCP_DSI:      /* Data storage exception                */
752
            EXCP_DUMP(env, "Invalid data memory access: 0x" ADDRX "\n",
753
                      env->spr[SPR_DAR]);
754
            /* XXX: check this. Seems bugged */
755
            switch (env->error_code & 0xFF000000) {
756
            case 0x40000000:
757
                info.si_signo = TARGET_SIGSEGV;
758
                info.si_errno = 0;
759
                info.si_code = TARGET_SEGV_MAPERR;
760
                break;
761
            case 0x04000000:
762
                info.si_signo = TARGET_SIGILL;
763
                info.si_errno = 0;
764
                info.si_code = TARGET_ILL_ILLADR;
765
                break;
766
            case 0x08000000:
767
                info.si_signo = TARGET_SIGSEGV;
768
                info.si_errno = 0;
769
                info.si_code = TARGET_SEGV_ACCERR;
770
                break;
771
            default:
772
                /* Let's send a regular segfault... */
773
                EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
774
                          env->error_code);
775
                info.si_signo = TARGET_SIGSEGV;
776
                info.si_errno = 0;
777
                info.si_code = TARGET_SEGV_MAPERR;
778
                break;
779
            }
780
            info._sifields._sigfault._addr = env->nip;
781
            queue_signal(info.si_signo, &info);
782
            break;
783
        case POWERPC_EXCP_ISI:      /* Instruction storage exception         */
784
            EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" ADDRX "\n",
785
                      env->spr[SPR_DAR]);
786
            /* XXX: check this */
787
            switch (env->error_code & 0xFF000000) {
788
            case 0x40000000:
789
                info.si_signo = TARGET_SIGSEGV;
790
            info.si_errno = 0;
791
                info.si_code = TARGET_SEGV_MAPERR;
792
                break;
793
            case 0x10000000:
794
            case 0x08000000:
795
                info.si_signo = TARGET_SIGSEGV;
796
                info.si_errno = 0;
797
                info.si_code = TARGET_SEGV_ACCERR;
798
                break;
799
            default:
800
                /* Let's send a regular segfault... */
801
                EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
802
                          env->error_code);
803
                info.si_signo = TARGET_SIGSEGV;
804
                info.si_errno = 0;
805
                info.si_code = TARGET_SEGV_MAPERR;
806
                break;
807
            }
808
            info._sifields._sigfault._addr = env->nip - 4;
809
            queue_signal(info.si_signo, &info);
810
            break;
811
        case POWERPC_EXCP_EXTERNAL: /* External input                        */
812
            cpu_abort(env, "External interrupt while in user mode. "
813
                      "Aborting\n");
814
            break;
815
        case POWERPC_EXCP_ALIGN:    /* Alignment exception                   */
816
            EXCP_DUMP(env, "Unaligned memory access\n");
817
            /* XXX: check this */
818
            info.si_signo = TARGET_SIGBUS;
819
            info.si_errno = 0;
820
            info.si_code = TARGET_BUS_ADRALN;
821
            info._sifields._sigfault._addr = env->nip - 4;
822
            queue_signal(info.si_signo, &info);
823
            break;
824
        case POWERPC_EXCP_PROGRAM:  /* Program exception                     */
825
            /* XXX: check this */
826
            switch (env->error_code & ~0xF) {
827
            case POWERPC_EXCP_FP:
828
                EXCP_DUMP(env, "Floating point program exception\n");
829
                /* Set FX */
830
                env->fpscr[7] |= 0x8;
831
                /* Finally, update FEX */
832
                if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
833
                    ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
834
                    env->fpscr[7] |= 0x4;
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_VXNAN:
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) /* 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) */
1018
#if defined(TARGET_PPC64H) /* PowerPC 64 with hypervisor mode support */
1019
        case POWERPC_EXCP_HDECR:    /* Hypervisor decrementer exception      */
1020
            cpu_abort(env, "Hypervisor decrementer interrupt "
1021
                      "while in user mode. Aborting\n");
1022
            break;
1023
#endif /* defined(TARGET_PPC64H) */
1024
        case POWERPC_EXCP_TRACE:    /* Trace exception                       */
1025
            /* Nothing to do:
1026
             * we use this exception to emulate step-by-step execution mode.
1027
             */
1028
            break;
1029
#if defined(TARGET_PPC64H) /* PowerPC 64 with hypervisor mode support */
1030
        case POWERPC_EXCP_HDSI:     /* Hypervisor data storage exception     */
1031
            cpu_abort(env, "Hypervisor data storage exception "
1032
                      "while in user mode. Aborting\n");
1033
            break;
1034
        case POWERPC_EXCP_HISI:     /* Hypervisor instruction storage excp   */
1035
            cpu_abort(env, "Hypervisor instruction storage exception "
1036
                      "while in user mode. Aborting\n");
1037
            break;
1038
        case POWERPC_EXCP_HDSEG:    /* Hypervisor data segment exception     */
1039
            cpu_abort(env, "Hypervisor data segment exception "
1040
                      "while in user mode. Aborting\n");
1041
            break;
1042
        case POWERPC_EXCP_HISEG:    /* Hypervisor instruction segment excp   */
1043
            cpu_abort(env, "Hypervisor instruction segment exception "
1044
                      "while in user mode. Aborting\n");
1045
            break;
1046
#endif /* defined(TARGET_PPC64H) */
1047
        case POWERPC_EXCP_VPU:      /* Vector unavailable exception          */
1048
            EXCP_DUMP(env, "No Altivec instructions allowed\n");
1049
            info.si_signo = TARGET_SIGILL;
1050
            info.si_errno = 0;
1051
            info.si_code = TARGET_ILL_COPROC;
1052
            info._sifields._sigfault._addr = env->nip - 4;
1053
            queue_signal(info.si_signo, &info);
1054
            break;
1055
        case POWERPC_EXCP_PIT:      /* Programmable interval timer IRQ       */
1056
            cpu_abort(env, "Programable interval timer interrupt "
1057
                      "while in user mode. Aborting\n");
1058
            break;
1059
        case POWERPC_EXCP_IO:       /* IO error exception                    */
1060
            cpu_abort(env, "IO error exception while in user mode. "
1061
                      "Aborting\n");
1062
            break;
1063
        case POWERPC_EXCP_RUNM:     /* Run mode exception                    */
1064
            cpu_abort(env, "Run mode exception while in user mode. "
1065
                      "Aborting\n");
1066
            break;
1067
        case POWERPC_EXCP_EMUL:     /* Emulation trap exception              */
1068
            cpu_abort(env, "Emulation trap exception not handled\n");
1069
            break;
1070
        case POWERPC_EXCP_IFTLB:    /* Instruction fetch TLB error           */
1071
            cpu_abort(env, "Instruction fetch TLB exception "
1072
                      "while in user-mode. Aborting");
1073
            break;
1074
        case POWERPC_EXCP_DLTLB:    /* Data load TLB miss                    */
1075
            cpu_abort(env, "Data load TLB exception while in user-mode. "
1076
                      "Aborting");
1077
            break;
1078
        case POWERPC_EXCP_DSTLB:    /* Data store TLB miss                   */
1079
            cpu_abort(env, "Data store TLB exception while in user-mode. "
1080
                      "Aborting");
1081
            break;
1082
        case POWERPC_EXCP_FPA:      /* Floating-point assist exception       */
1083
            cpu_abort(env, "Floating-point assist exception not handled\n");
1084
            break;
1085
        case POWERPC_EXCP_IABR:     /* Instruction address breakpoint        */
1086
            cpu_abort(env, "Instruction address breakpoint exception "
1087
                      "not handled\n");
1088
            break;
1089
        case POWERPC_EXCP_SMI:      /* System management interrupt           */
1090
            cpu_abort(env, "System management interrupt while in user mode. "
1091
                      "Aborting\n");
1092
            break;
1093
        case POWERPC_EXCP_THERM:    /* Thermal interrupt                     */
1094
            cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
1095
                      "Aborting\n");
1096
            break;
1097
        case POWERPC_EXCP_PERFM:   /* Embedded performance monitor IRQ      */
1098
            cpu_abort(env, "Performance monitor exception not handled\n");
1099
            break;
1100
        case POWERPC_EXCP_VPUA:     /* Vector assist exception               */
1101
            cpu_abort(env, "Vector assist exception not handled\n");
1102
            break;
1103
        case POWERPC_EXCP_SOFTP:    /* Soft patch exception                  */
1104
            cpu_abort(env, "Soft patch exception not handled\n");
1105
            break;
1106
        case POWERPC_EXCP_MAINT:    /* Maintenance exception                 */
1107
            cpu_abort(env, "Maintenance exception while in user mode. "
1108
                      "Aborting\n");
1109
            break;
1110
        case POWERPC_EXCP_STOP:     /* stop translation                      */
1111
            /* We did invalidate the instruction cache. Go on */
1112
            break;
1113
        case POWERPC_EXCP_BRANCH:   /* branch instruction:                   */
1114
            /* We just stopped because of a branch. Go on */
1115
            break;
1116
        case POWERPC_EXCP_SYSCALL_USER:
1117
            /* system call in user-mode emulation */
1118
            /* WARNING:
1119
             * PPC ABI uses overflow flag in cr0 to signal an error
1120
             * in syscalls.
1121
             */
1122
#if 0
1123
            printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
1124
                   env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
1125
#endif
1126
            env->crf[0] &= ~0x1;
1127
            ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
1128
                             env->gpr[5], env->gpr[6], env->gpr[7],
1129
                             env->gpr[8]);
1130
            if (ret > (uint32_t)(-515)) {
1131
                env->crf[0] |= 0x1;
1132
                ret = -ret;
1133
            }
1134
            env->gpr[3] = ret;
1135
#if 0
1136
            printf("syscall returned 0x%08x (%d)\n", ret, ret);
1137
#endif
1138
            break;
1139
        case EXCP_INTERRUPT:
1140
            /* just indicate that signals should be handled asap */
1141
            break;
1142
        default:
1143
            cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
1144
            break;
1145
        }
1146
        process_pending_signals(env);
1147
    }
1148
}
1149
#endif
1150

    
1151
#ifdef TARGET_MIPS
1152

    
1153
#define MIPS_SYS(name, args) args,
1154

    
1155
static const uint8_t mips_syscall_args[] = {
1156
        MIPS_SYS(sys_syscall        , 0)        /* 4000 */
1157
        MIPS_SYS(sys_exit        , 1)
1158
        MIPS_SYS(sys_fork        , 0)
1159
        MIPS_SYS(sys_read        , 3)
1160
        MIPS_SYS(sys_write        , 3)
1161
        MIPS_SYS(sys_open        , 3)        /* 4005 */
1162
        MIPS_SYS(sys_close        , 1)
1163
        MIPS_SYS(sys_waitpid        , 3)
1164
        MIPS_SYS(sys_creat        , 2)
1165
        MIPS_SYS(sys_link        , 2)
1166
        MIPS_SYS(sys_unlink        , 1)        /* 4010 */
1167
        MIPS_SYS(sys_execve        , 0)
1168
        MIPS_SYS(sys_chdir        , 1)
1169
        MIPS_SYS(sys_time        , 1)
1170
        MIPS_SYS(sys_mknod        , 3)
1171
        MIPS_SYS(sys_chmod        , 2)        /* 4015 */
1172
        MIPS_SYS(sys_lchown        , 3)
1173
        MIPS_SYS(sys_ni_syscall        , 0)
1174
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_stat */
1175
        MIPS_SYS(sys_lseek        , 3)
1176
        MIPS_SYS(sys_getpid        , 0)        /* 4020 */
1177
        MIPS_SYS(sys_mount        , 5)
1178
        MIPS_SYS(sys_oldumount        , 1)
1179
        MIPS_SYS(sys_setuid        , 1)
1180
        MIPS_SYS(sys_getuid        , 0)
1181
        MIPS_SYS(sys_stime        , 1)        /* 4025 */
1182
        MIPS_SYS(sys_ptrace        , 4)
1183
        MIPS_SYS(sys_alarm        , 1)
1184
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_fstat */
1185
        MIPS_SYS(sys_pause        , 0)
1186
        MIPS_SYS(sys_utime        , 2)        /* 4030 */
1187
        MIPS_SYS(sys_ni_syscall        , 0)
1188
        MIPS_SYS(sys_ni_syscall        , 0)
1189
        MIPS_SYS(sys_access        , 2)
1190
        MIPS_SYS(sys_nice        , 1)
1191
        MIPS_SYS(sys_ni_syscall        , 0)        /* 4035 */
1192
        MIPS_SYS(sys_sync        , 0)
1193
        MIPS_SYS(sys_kill        , 2)
1194
        MIPS_SYS(sys_rename        , 2)
1195
        MIPS_SYS(sys_mkdir        , 2)
1196
        MIPS_SYS(sys_rmdir        , 1)        /* 4040 */
1197
        MIPS_SYS(sys_dup                , 1)
1198
        MIPS_SYS(sys_pipe        , 0)
1199
        MIPS_SYS(sys_times        , 1)
1200
        MIPS_SYS(sys_ni_syscall        , 0)
1201
        MIPS_SYS(sys_brk                , 1)        /* 4045 */
1202
        MIPS_SYS(sys_setgid        , 1)
1203
        MIPS_SYS(sys_getgid        , 0)
1204
        MIPS_SYS(sys_ni_syscall        , 0)        /* was signal(2) */
1205
        MIPS_SYS(sys_geteuid        , 0)
1206
        MIPS_SYS(sys_getegid        , 0)        /* 4050 */
1207
        MIPS_SYS(sys_acct        , 0)
1208
        MIPS_SYS(sys_umount        , 2)
1209
        MIPS_SYS(sys_ni_syscall        , 0)
1210
        MIPS_SYS(sys_ioctl        , 3)
1211
        MIPS_SYS(sys_fcntl        , 3)        /* 4055 */
1212
        MIPS_SYS(sys_ni_syscall        , 2)
1213
        MIPS_SYS(sys_setpgid        , 2)
1214
        MIPS_SYS(sys_ni_syscall        , 0)
1215
        MIPS_SYS(sys_olduname        , 1)
1216
        MIPS_SYS(sys_umask        , 1)        /* 4060 */
1217
        MIPS_SYS(sys_chroot        , 1)
1218
        MIPS_SYS(sys_ustat        , 2)
1219
        MIPS_SYS(sys_dup2        , 2)
1220
        MIPS_SYS(sys_getppid        , 0)
1221
        MIPS_SYS(sys_getpgrp        , 0)        /* 4065 */
1222
        MIPS_SYS(sys_setsid        , 0)
1223
        MIPS_SYS(sys_sigaction        , 3)
1224
        MIPS_SYS(sys_sgetmask        , 0)
1225
        MIPS_SYS(sys_ssetmask        , 1)
1226
        MIPS_SYS(sys_setreuid        , 2)        /* 4070 */
1227
        MIPS_SYS(sys_setregid        , 2)
1228
        MIPS_SYS(sys_sigsuspend        , 0)
1229
        MIPS_SYS(sys_sigpending        , 1)
1230
        MIPS_SYS(sys_sethostname        , 2)
1231
        MIPS_SYS(sys_setrlimit        , 2)        /* 4075 */
1232
        MIPS_SYS(sys_getrlimit        , 2)
1233
        MIPS_SYS(sys_getrusage        , 2)
1234
        MIPS_SYS(sys_gettimeofday, 2)
1235
        MIPS_SYS(sys_settimeofday, 2)
1236
        MIPS_SYS(sys_getgroups        , 2)        /* 4080 */
1237
        MIPS_SYS(sys_setgroups        , 2)
1238
        MIPS_SYS(sys_ni_syscall        , 0)        /* old_select */
1239
        MIPS_SYS(sys_symlink        , 2)
1240
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_lstat */
1241
        MIPS_SYS(sys_readlink        , 3)        /* 4085 */
1242
        MIPS_SYS(sys_uselib        , 1)
1243
        MIPS_SYS(sys_swapon        , 2)
1244
        MIPS_SYS(sys_reboot        , 3)
1245
        MIPS_SYS(old_readdir        , 3)
1246
        MIPS_SYS(old_mmap        , 6)        /* 4090 */
1247
        MIPS_SYS(sys_munmap        , 2)
1248
        MIPS_SYS(sys_truncate        , 2)
1249
        MIPS_SYS(sys_ftruncate        , 2)
1250
        MIPS_SYS(sys_fchmod        , 2)
1251
        MIPS_SYS(sys_fchown        , 3)        /* 4095 */
1252
        MIPS_SYS(sys_getpriority        , 2)
1253
        MIPS_SYS(sys_setpriority        , 3)
1254
        MIPS_SYS(sys_ni_syscall        , 0)
1255
        MIPS_SYS(sys_statfs        , 2)
1256
        MIPS_SYS(sys_fstatfs        , 2)        /* 4100 */
1257
        MIPS_SYS(sys_ni_syscall        , 0)        /* was ioperm(2) */
1258
        MIPS_SYS(sys_socketcall        , 2)
1259
        MIPS_SYS(sys_syslog        , 3)
1260
        MIPS_SYS(sys_setitimer        , 3)
1261
        MIPS_SYS(sys_getitimer        , 2)        /* 4105 */
1262
        MIPS_SYS(sys_newstat        , 2)
1263
        MIPS_SYS(sys_newlstat        , 2)
1264
        MIPS_SYS(sys_newfstat        , 2)
1265
        MIPS_SYS(sys_uname        , 1)
1266
        MIPS_SYS(sys_ni_syscall        , 0)        /* 4110 was iopl(2) */
1267
        MIPS_SYS(sys_vhangup        , 0)
1268
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_idle() */
1269
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_vm86 */
1270
        MIPS_SYS(sys_wait4        , 4)
1271
        MIPS_SYS(sys_swapoff        , 1)        /* 4115 */
1272
        MIPS_SYS(sys_sysinfo        , 1)
1273
        MIPS_SYS(sys_ipc                , 6)
1274
        MIPS_SYS(sys_fsync        , 1)
1275
        MIPS_SYS(sys_sigreturn        , 0)
1276
        MIPS_SYS(sys_clone        , 0)        /* 4120 */
1277
        MIPS_SYS(sys_setdomainname, 2)
1278
        MIPS_SYS(sys_newuname        , 1)
1279
        MIPS_SYS(sys_ni_syscall        , 0)        /* sys_modify_ldt */
1280
        MIPS_SYS(sys_adjtimex        , 1)
1281
        MIPS_SYS(sys_mprotect        , 3)        /* 4125 */
1282
        MIPS_SYS(sys_sigprocmask        , 3)
1283
        MIPS_SYS(sys_ni_syscall        , 0)        /* was create_module */
1284
        MIPS_SYS(sys_init_module        , 5)
1285
        MIPS_SYS(sys_delete_module, 1)
1286
        MIPS_SYS(sys_ni_syscall        , 0)        /* 4130        was get_kernel_syms */
1287
        MIPS_SYS(sys_quotactl        , 0)
1288
        MIPS_SYS(sys_getpgid        , 1)
1289
        MIPS_SYS(sys_fchdir        , 1)
1290
        MIPS_SYS(sys_bdflush        , 2)
1291
        MIPS_SYS(sys_sysfs        , 3)        /* 4135 */
1292
        MIPS_SYS(sys_personality        , 1)
1293
        MIPS_SYS(sys_ni_syscall        , 0)        /* for afs_syscall */
1294
        MIPS_SYS(sys_setfsuid        , 1)
1295
        MIPS_SYS(sys_setfsgid        , 1)
1296
        MIPS_SYS(sys_llseek        , 5)        /* 4140 */
1297
        MIPS_SYS(sys_getdents        , 3)
1298
        MIPS_SYS(sys_select        , 5)
1299
        MIPS_SYS(sys_flock        , 2)
1300
        MIPS_SYS(sys_msync        , 3)
1301
        MIPS_SYS(sys_readv        , 3)        /* 4145 */
1302
        MIPS_SYS(sys_writev        , 3)
1303
        MIPS_SYS(sys_cacheflush        , 3)
1304
        MIPS_SYS(sys_cachectl        , 3)
1305
        MIPS_SYS(sys_sysmips        , 4)
1306
        MIPS_SYS(sys_ni_syscall        , 0)        /* 4150 */
1307
        MIPS_SYS(sys_getsid        , 1)
1308
        MIPS_SYS(sys_fdatasync        , 0)
1309
        MIPS_SYS(sys_sysctl        , 1)
1310
        MIPS_SYS(sys_mlock        , 2)
1311
        MIPS_SYS(sys_munlock        , 2)        /* 4155 */
1312
        MIPS_SYS(sys_mlockall        , 1)
1313
        MIPS_SYS(sys_munlockall        , 0)
1314
        MIPS_SYS(sys_sched_setparam, 2)
1315
        MIPS_SYS(sys_sched_getparam, 2)
1316
        MIPS_SYS(sys_sched_setscheduler, 3)        /* 4160 */
1317
        MIPS_SYS(sys_sched_getscheduler, 1)
1318
        MIPS_SYS(sys_sched_yield        , 0)
1319
        MIPS_SYS(sys_sched_get_priority_max, 1)
1320
        MIPS_SYS(sys_sched_get_priority_min, 1)
1321
        MIPS_SYS(sys_sched_rr_get_interval, 2)        /* 4165 */
1322
        MIPS_SYS(sys_nanosleep,        2)
1323
        MIPS_SYS(sys_mremap        , 4)
1324
        MIPS_SYS(sys_accept        , 3)
1325
        MIPS_SYS(sys_bind        , 3)
1326
        MIPS_SYS(sys_connect        , 3)        /* 4170 */
1327
        MIPS_SYS(sys_getpeername        , 3)
1328
        MIPS_SYS(sys_getsockname        , 3)
1329
        MIPS_SYS(sys_getsockopt        , 5)
1330
        MIPS_SYS(sys_listen        , 2)
1331
        MIPS_SYS(sys_recv        , 4)        /* 4175 */
1332
        MIPS_SYS(sys_recvfrom        , 6)
1333
        MIPS_SYS(sys_recvmsg        , 3)
1334
        MIPS_SYS(sys_send        , 4)
1335
        MIPS_SYS(sys_sendmsg        , 3)
1336
        MIPS_SYS(sys_sendto        , 6)        /* 4180 */
1337
        MIPS_SYS(sys_setsockopt        , 5)
1338
        MIPS_SYS(sys_shutdown        , 2)
1339
        MIPS_SYS(sys_socket        , 3)
1340
        MIPS_SYS(sys_socketpair        , 4)
1341
        MIPS_SYS(sys_setresuid        , 3)        /* 4185 */
1342
        MIPS_SYS(sys_getresuid        , 3)
1343
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_query_module */
1344
        MIPS_SYS(sys_poll        , 3)
1345
        MIPS_SYS(sys_nfsservctl        , 3)
1346
        MIPS_SYS(sys_setresgid        , 3)        /* 4190 */
1347
        MIPS_SYS(sys_getresgid        , 3)
1348
        MIPS_SYS(sys_prctl        , 5)
1349
        MIPS_SYS(sys_rt_sigreturn, 0)
1350
        MIPS_SYS(sys_rt_sigaction, 4)
1351
        MIPS_SYS(sys_rt_sigprocmask, 4)        /* 4195 */
1352
        MIPS_SYS(sys_rt_sigpending, 2)
1353
        MIPS_SYS(sys_rt_sigtimedwait, 4)
1354
        MIPS_SYS(sys_rt_sigqueueinfo, 3)
1355
        MIPS_SYS(sys_rt_sigsuspend, 0)
1356
        MIPS_SYS(sys_pread64        , 6)        /* 4200 */
1357
        MIPS_SYS(sys_pwrite64        , 6)
1358
        MIPS_SYS(sys_chown        , 3)
1359
        MIPS_SYS(sys_getcwd        , 2)
1360
        MIPS_SYS(sys_capget        , 2)
1361
        MIPS_SYS(sys_capset        , 2)        /* 4205 */
1362
        MIPS_SYS(sys_sigaltstack        , 0)
1363
        MIPS_SYS(sys_sendfile        , 4)
1364
        MIPS_SYS(sys_ni_syscall        , 0)
1365
        MIPS_SYS(sys_ni_syscall        , 0)
1366
        MIPS_SYS(sys_mmap2        , 6)        /* 4210 */
1367
        MIPS_SYS(sys_truncate64        , 4)
1368
        MIPS_SYS(sys_ftruncate64        , 4)
1369
        MIPS_SYS(sys_stat64        , 2)
1370
        MIPS_SYS(sys_lstat64        , 2)
1371
        MIPS_SYS(sys_fstat64        , 2)        /* 4215 */
1372
        MIPS_SYS(sys_pivot_root        , 2)
1373
        MIPS_SYS(sys_mincore        , 3)
1374
        MIPS_SYS(sys_madvise        , 3)
1375
        MIPS_SYS(sys_getdents64        , 3)
1376
        MIPS_SYS(sys_fcntl64        , 3)        /* 4220 */
1377
        MIPS_SYS(sys_ni_syscall        , 0)
1378
        MIPS_SYS(sys_gettid        , 0)
1379
        MIPS_SYS(sys_readahead        , 5)
1380
        MIPS_SYS(sys_setxattr        , 5)
1381
        MIPS_SYS(sys_lsetxattr        , 5)        /* 4225 */
1382
        MIPS_SYS(sys_fsetxattr        , 5)
1383
        MIPS_SYS(sys_getxattr        , 4)
1384
        MIPS_SYS(sys_lgetxattr        , 4)
1385
        MIPS_SYS(sys_fgetxattr        , 4)
1386
        MIPS_SYS(sys_listxattr        , 3)        /* 4230 */
1387
        MIPS_SYS(sys_llistxattr        , 3)
1388
        MIPS_SYS(sys_flistxattr        , 3)
1389
        MIPS_SYS(sys_removexattr        , 2)
1390
        MIPS_SYS(sys_lremovexattr, 2)
1391
        MIPS_SYS(sys_fremovexattr, 2)        /* 4235 */
1392
        MIPS_SYS(sys_tkill        , 2)
1393
        MIPS_SYS(sys_sendfile64        , 5)
1394
        MIPS_SYS(sys_futex        , 2)
1395
        MIPS_SYS(sys_sched_setaffinity, 3)
1396
        MIPS_SYS(sys_sched_getaffinity, 3)        /* 4240 */
1397
        MIPS_SYS(sys_io_setup        , 2)
1398
        MIPS_SYS(sys_io_destroy        , 1)
1399
        MIPS_SYS(sys_io_getevents, 5)
1400
        MIPS_SYS(sys_io_submit        , 3)
1401
        MIPS_SYS(sys_io_cancel        , 3)        /* 4245 */
1402
        MIPS_SYS(sys_exit_group        , 1)
1403
        MIPS_SYS(sys_lookup_dcookie, 3)
1404
        MIPS_SYS(sys_epoll_create, 1)
1405
        MIPS_SYS(sys_epoll_ctl        , 4)
1406
        MIPS_SYS(sys_epoll_wait        , 3)        /* 4250 */
1407
        MIPS_SYS(sys_remap_file_pages, 5)
1408
        MIPS_SYS(sys_set_tid_address, 1)
1409
        MIPS_SYS(sys_restart_syscall, 0)
1410
        MIPS_SYS(sys_fadvise64_64, 7)
1411
        MIPS_SYS(sys_statfs64        , 3)        /* 4255 */
1412
        MIPS_SYS(sys_fstatfs64        , 2)
1413
        MIPS_SYS(sys_timer_create, 3)
1414
        MIPS_SYS(sys_timer_settime, 4)
1415
        MIPS_SYS(sys_timer_gettime, 2)
1416
        MIPS_SYS(sys_timer_getoverrun, 1)        /* 4260 */
1417
        MIPS_SYS(sys_timer_delete, 1)
1418
        MIPS_SYS(sys_clock_settime, 2)
1419
        MIPS_SYS(sys_clock_gettime, 2)
1420
        MIPS_SYS(sys_clock_getres, 2)
1421
        MIPS_SYS(sys_clock_nanosleep, 4)        /* 4265 */
1422
        MIPS_SYS(sys_tgkill        , 3)
1423
        MIPS_SYS(sys_utimes        , 2)
1424
        MIPS_SYS(sys_mbind        , 4)
1425
        MIPS_SYS(sys_ni_syscall        , 0)        /* sys_get_mempolicy */
1426
        MIPS_SYS(sys_ni_syscall        , 0)        /* 4270 sys_set_mempolicy */
1427
        MIPS_SYS(sys_mq_open        , 4)
1428
        MIPS_SYS(sys_mq_unlink        , 1)
1429
        MIPS_SYS(sys_mq_timedsend, 5)
1430
        MIPS_SYS(sys_mq_timedreceive, 5)
1431
        MIPS_SYS(sys_mq_notify        , 2)        /* 4275 */
1432
        MIPS_SYS(sys_mq_getsetattr, 3)
1433
        MIPS_SYS(sys_ni_syscall        , 0)        /* sys_vserver */
1434
        MIPS_SYS(sys_waitid        , 4)
1435
        MIPS_SYS(sys_ni_syscall        , 0)        /* available, was setaltroot */
1436
        MIPS_SYS(sys_add_key        , 5)
1437
        MIPS_SYS(sys_request_key, 4)
1438
        MIPS_SYS(sys_keyctl        , 5)
1439
        MIPS_SYS(sys_set_thread_area, 1)
1440
        MIPS_SYS(sys_inotify_init, 0)
1441
        MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
1442
        MIPS_SYS(sys_inotify_rm_watch, 2)
1443
        MIPS_SYS(sys_migrate_pages, 4)
1444
        MIPS_SYS(sys_openat, 4)
1445
        MIPS_SYS(sys_mkdirat, 3)
1446
        MIPS_SYS(sys_mknodat, 4)        /* 4290 */
1447
        MIPS_SYS(sys_fchownat, 5)
1448
        MIPS_SYS(sys_futimesat, 3)
1449
        MIPS_SYS(sys_fstatat64, 4)
1450
        MIPS_SYS(sys_unlinkat, 3)
1451
        MIPS_SYS(sys_renameat, 4)        /* 4295 */
1452
        MIPS_SYS(sys_linkat, 5)
1453
        MIPS_SYS(sys_symlinkat, 3)
1454
        MIPS_SYS(sys_readlinkat, 4)
1455
        MIPS_SYS(sys_fchmodat, 3)
1456
        MIPS_SYS(sys_faccessat, 3)        /* 4300 */
1457
        MIPS_SYS(sys_pselect6, 6)
1458
        MIPS_SYS(sys_ppoll, 5)
1459
        MIPS_SYS(sys_unshare, 1)
1460
        MIPS_SYS(sys_splice, 4)
1461
        MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
1462
        MIPS_SYS(sys_tee, 4)
1463
        MIPS_SYS(sys_vmsplice, 4)
1464
        MIPS_SYS(sys_move_pages, 6)
1465
        MIPS_SYS(sys_set_robust_list, 2)
1466
        MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
1467
        MIPS_SYS(sys_kexec_load, 4)
1468
        MIPS_SYS(sys_getcpu, 3)
1469
        MIPS_SYS(sys_epoll_pwait, 6)
1470
        MIPS_SYS(sys_ioprio_set, 3)
1471
        MIPS_SYS(sys_ioprio_get, 2)
1472
};
1473

    
1474
#undef MIPS_SYS
1475

    
1476
void cpu_loop(CPUMIPSState *env)
1477
{
1478
    target_siginfo_t info;
1479
    int trapnr, ret;
1480
    unsigned int syscall_num;
1481

    
1482
    for(;;) {
1483
        trapnr = cpu_mips_exec(env);
1484
        switch(trapnr) {
1485
        case EXCP_SYSCALL:
1486
            syscall_num = env->gpr[2][env->current_tc] - 4000;
1487
            env->PC[env->current_tc] += 4;
1488
            if (syscall_num >= sizeof(mips_syscall_args)) {
1489
                ret = -ENOSYS;
1490
            } else {
1491
                int nb_args;
1492
                target_ulong sp_reg;
1493
                target_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
1494

    
1495
                nb_args = mips_syscall_args[syscall_num];
1496
                sp_reg = env->gpr[29][env->current_tc];
1497
                switch (nb_args) {
1498
                /* these arguments are taken from the stack */
1499
                case 8: arg8 = tgetl(sp_reg + 28);
1500
                case 7: arg7 = tgetl(sp_reg + 24);
1501
                case 6: arg6 = tgetl(sp_reg + 20);
1502
                case 5: arg5 = tgetl(sp_reg + 16);
1503
                default:
1504
                    break;
1505
                }
1506
                ret = do_syscall(env, env->gpr[2][env->current_tc],
1507
                                 env->gpr[4][env->current_tc],
1508
                                 env->gpr[5][env->current_tc],
1509
                                 env->gpr[6][env->current_tc],
1510
                                 env->gpr[7][env->current_tc],
1511
                                 arg5, arg6/*, arg7, arg8*/);
1512
            }
1513
            if ((unsigned int)ret >= (unsigned int)(-1133)) {
1514
                env->gpr[7][env->current_tc] = 1; /* error flag */
1515
                ret = -ret;
1516
            } else {
1517
                env->gpr[7][env->current_tc] = 0; /* error flag */
1518
            }
1519
            env->gpr[2][env->current_tc] = ret;
1520
            break;
1521
        case EXCP_TLBL:
1522
        case EXCP_TLBS:
1523
        case EXCP_CpU:
1524
        case EXCP_RI:
1525
            info.si_signo = TARGET_SIGILL;
1526
            info.si_errno = 0;
1527
            info.si_code = 0;
1528
            queue_signal(info.si_signo, &info);
1529
            break;
1530
        case EXCP_INTERRUPT:
1531
            /* just indicate that signals should be handled asap */
1532
            break;
1533
        case EXCP_DEBUG:
1534
            {
1535
                int sig;
1536

    
1537
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1538
                if (sig)
1539
                  {
1540
                    info.si_signo = sig;
1541
                    info.si_errno = 0;
1542
                    info.si_code = TARGET_TRAP_BRKPT;
1543
                    queue_signal(info.si_signo, &info);
1544
                  }
1545
            }
1546
            break;
1547
        default:
1548
            //        error:
1549
            fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1550
                    trapnr);
1551
            cpu_dump_state(env, stderr, fprintf, 0);
1552
            abort();
1553
        }
1554
        process_pending_signals(env);
1555
    }
1556
}
1557
#endif
1558

    
1559
#ifdef TARGET_SH4
1560
void cpu_loop (CPUState *env)
1561
{
1562
    int trapnr, ret;
1563
    target_siginfo_t info;
1564

    
1565
    while (1) {
1566
        trapnr = cpu_sh4_exec (env);
1567

    
1568
        switch (trapnr) {
1569
        case 0x160:
1570
            ret = do_syscall(env,
1571
                             env->gregs[3],
1572
                             env->gregs[4],
1573
                             env->gregs[5],
1574
                             env->gregs[6],
1575
                             env->gregs[7],
1576
                             env->gregs[0],
1577
                             0);
1578
            env->gregs[0] = ret;
1579
            env->pc += 2;
1580
            break;
1581
        case EXCP_DEBUG:
1582
            {
1583
                int sig;
1584

    
1585
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1586
                if (sig)
1587
                  {
1588
                    info.si_signo = sig;
1589
                    info.si_errno = 0;
1590
                    info.si_code = TARGET_TRAP_BRKPT;
1591
                    queue_signal(info.si_signo, &info);
1592
                  }
1593
            }
1594
            break;
1595
        default:
1596
            printf ("Unhandled trap: 0x%x\n", trapnr);
1597
            cpu_dump_state(env, stderr, fprintf, 0);
1598
            exit (1);
1599
        }
1600
        process_pending_signals (env);
1601
    }
1602
}
1603
#endif
1604

    
1605
#ifdef TARGET_CRIS
1606
void cpu_loop (CPUState *env)
1607
{
1608
    int trapnr, ret;
1609
    target_siginfo_t info;
1610
    
1611
    while (1) {
1612
        trapnr = cpu_cris_exec (env);
1613
        switch (trapnr) {
1614
        case 0xaa:
1615
            {
1616
                info.si_signo = SIGSEGV;
1617
                info.si_errno = 0;
1618
                /* XXX: check env->error_code */
1619
                info.si_code = TARGET_SEGV_MAPERR;
1620
                info._sifields._sigfault._addr = env->debug1;
1621
                queue_signal(info.si_signo, &info);
1622
            }
1623
            break;
1624
        case EXCP_BREAK:
1625
            ret = do_syscall(env, 
1626
                             env->regs[9], 
1627
                             env->regs[10], 
1628
                             env->regs[11], 
1629
                             env->regs[12], 
1630
                             env->regs[13], 
1631
                             env->pregs[7], 
1632
                             env->pregs[11]);
1633
            env->regs[10] = ret;
1634
            env->pc += 2;
1635
            break;
1636
        case EXCP_DEBUG:
1637
            {
1638
                int sig;
1639

    
1640
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1641
                if (sig)
1642
                  {
1643
                    info.si_signo = sig;
1644
                    info.si_errno = 0;
1645
                    info.si_code = TARGET_TRAP_BRKPT;
1646
                    queue_signal(info.si_signo, &info);
1647
                  }
1648
            }
1649
            break;
1650
        default:
1651
            printf ("Unhandled trap: 0x%x\n", trapnr);
1652
            cpu_dump_state(env, stderr, fprintf, 0);
1653
            exit (1);
1654
        }
1655
        process_pending_signals (env);
1656
    }
1657
}
1658
#endif
1659

    
1660
#ifdef TARGET_M68K
1661

    
1662
void cpu_loop(CPUM68KState *env)
1663
{
1664
    int trapnr;
1665
    unsigned int n;
1666
    target_siginfo_t info;
1667
    TaskState *ts = env->opaque;
1668

    
1669
    for(;;) {
1670
        trapnr = cpu_m68k_exec(env);
1671
        switch(trapnr) {
1672
        case EXCP_ILLEGAL:
1673
            {
1674
                if (ts->sim_syscalls) {
1675
                    uint16_t nr;
1676
                    nr = lduw(env->pc + 2);
1677
                    env->pc += 4;
1678
                    do_m68k_simcall(env, nr);
1679
                } else {
1680
                    goto do_sigill;
1681
                }
1682
            }
1683
            break;
1684
        case EXCP_HALT_INSN:
1685
            /* Semihosing syscall.  */
1686
            env->pc += 4;
1687
            do_m68k_semihosting(env, env->dregs[0]);
1688
            break;
1689
        case EXCP_LINEA:
1690
        case EXCP_LINEF:
1691
        case EXCP_UNSUPPORTED:
1692
        do_sigill:
1693
            info.si_signo = SIGILL;
1694
            info.si_errno = 0;
1695
            info.si_code = TARGET_ILL_ILLOPN;
1696
            info._sifields._sigfault._addr = env->pc;
1697
            queue_signal(info.si_signo, &info);
1698
            break;
1699
        case EXCP_TRAP0:
1700
            {
1701
                ts->sim_syscalls = 0;
1702
                n = env->dregs[0];
1703
                env->pc += 2;
1704
                env->dregs[0] = do_syscall(env,
1705
                                          n,
1706
                                          env->dregs[1],
1707
                                          env->dregs[2],
1708
                                          env->dregs[3],
1709
                                          env->dregs[4],
1710
                                          env->dregs[5],
1711
                                          env->dregs[6]);
1712
            }
1713
            break;
1714
        case EXCP_INTERRUPT:
1715
            /* just indicate that signals should be handled asap */
1716
            break;
1717
        case EXCP_ACCESS:
1718
            {
1719
                info.si_signo = SIGSEGV;
1720
                info.si_errno = 0;
1721
                /* XXX: check env->error_code */
1722
                info.si_code = TARGET_SEGV_MAPERR;
1723
                info._sifields._sigfault._addr = env->mmu.ar;
1724
                queue_signal(info.si_signo, &info);
1725
            }
1726
            break;
1727
        case EXCP_DEBUG:
1728
            {
1729
                int sig;
1730

    
1731
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1732
                if (sig)
1733
                  {
1734
                    info.si_signo = sig;
1735
                    info.si_errno = 0;
1736
                    info.si_code = TARGET_TRAP_BRKPT;
1737
                    queue_signal(info.si_signo, &info);
1738
                  }
1739
            }
1740
            break;
1741
        default:
1742
            fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1743
                    trapnr);
1744
            cpu_dump_state(env, stderr, fprintf, 0);
1745
            abort();
1746
        }
1747
        process_pending_signals(env);
1748
    }
1749
}
1750
#endif /* TARGET_M68K */
1751

    
1752
#ifdef TARGET_ALPHA
1753
void cpu_loop (CPUState *env)
1754
{
1755
    int trapnr;
1756
    target_siginfo_t info;
1757

    
1758
    while (1) {
1759
        trapnr = cpu_alpha_exec (env);
1760

    
1761
        switch (trapnr) {
1762
        case EXCP_RESET:
1763
            fprintf(stderr, "Reset requested. Exit\n");
1764
            exit(1);
1765
            break;
1766
        case EXCP_MCHK:
1767
            fprintf(stderr, "Machine check exception. Exit\n");
1768
            exit(1);
1769
            break;
1770
        case EXCP_ARITH:
1771
            fprintf(stderr, "Arithmetic trap.\n");
1772
            exit(1);
1773
            break;
1774
        case EXCP_HW_INTERRUPT:
1775
            fprintf(stderr, "External interrupt. Exit\n");
1776
            exit(1);
1777
            break;
1778
        case EXCP_DFAULT:
1779
            fprintf(stderr, "MMU data fault\n");
1780
            exit(1);
1781
            break;
1782
        case EXCP_DTB_MISS_PAL:
1783
            fprintf(stderr, "MMU data TLB miss in PALcode\n");
1784
            exit(1);
1785
            break;
1786
        case EXCP_ITB_MISS:
1787
            fprintf(stderr, "MMU instruction TLB miss\n");
1788
            exit(1);
1789
            break;
1790
        case EXCP_ITB_ACV:
1791
            fprintf(stderr, "MMU instruction access violation\n");
1792
            exit(1);
1793
            break;
1794
        case EXCP_DTB_MISS_NATIVE:
1795
            fprintf(stderr, "MMU data TLB miss\n");
1796
            exit(1);
1797
            break;
1798
        case EXCP_UNALIGN:
1799
            fprintf(stderr, "Unaligned access\n");
1800
            exit(1);
1801
            break;
1802
        case EXCP_OPCDEC:
1803
            fprintf(stderr, "Invalid instruction\n");
1804
            exit(1);
1805
            break;
1806
        case EXCP_FEN:
1807
            fprintf(stderr, "Floating-point not allowed\n");
1808
            exit(1);
1809
            break;
1810
        case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1):
1811
            fprintf(stderr, "Call to PALcode\n");
1812
            call_pal(env, (trapnr >> 6) | 0x80);
1813
            break;
1814
        case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1):
1815
            fprintf(stderr, "Privileged call to PALcode\n");
1816
            exit(1);
1817
            break;
1818
        case EXCP_DEBUG:
1819
            {
1820
                int sig;
1821

    
1822
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1823
                if (sig)
1824
                  {
1825
                    info.si_signo = sig;
1826
                    info.si_errno = 0;
1827
                    info.si_code = TARGET_TRAP_BRKPT;
1828
                    queue_signal(info.si_signo, &info);
1829
                  }
1830
            }
1831
            break;
1832
        default:
1833
            printf ("Unhandled trap: 0x%x\n", trapnr);
1834
            cpu_dump_state(env, stderr, fprintf, 0);
1835
            exit (1);
1836
        }
1837
        process_pending_signals (env);
1838
    }
1839
}
1840
#endif /* TARGET_ALPHA */
1841

    
1842
void usage(void)
1843
{
1844
    printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2007 Fabrice Bellard\n"
1845
           "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] [-cpu model] program [arguments...]\n"
1846
           "Linux CPU emulator (compiled for %s emulation)\n"
1847
           "\n"
1848
           "-h                print this help\n"
1849
           "-g port           wait gdb connection to port\n"
1850
           "-L path           set the elf interpreter prefix (default=%s)\n"
1851
           "-s size           set the stack size in bytes (default=%ld)\n"
1852
           "-cpu model        select CPU (-cpu ? for list)\n"
1853
           "-drop-ld-preload  drop LD_PRELOAD for target process\n"
1854
           "\n"
1855
           "debug options:\n"
1856
#ifdef USE_CODE_COPY
1857
           "-no-code-copy   disable code copy acceleration\n"
1858
#endif
1859
           "-d options   activate log (logfile=%s)\n"
1860
           "-p pagesize  set the host page size to 'pagesize'\n",
1861
           TARGET_ARCH,
1862
           interp_prefix,
1863
           x86_stack_size,
1864
           DEBUG_LOGFILE);
1865
    _exit(1);
1866
}
1867

    
1868
/* XXX: currently only used for async signals (see signal.c) */
1869
CPUState *global_env;
1870

    
1871
/* used to free thread contexts */
1872
TaskState *first_task_state;
1873

    
1874
int main(int argc, char **argv)
1875
{
1876
    const char *filename;
1877
    const char *cpu_model;
1878
    struct target_pt_regs regs1, *regs = &regs1;
1879
    struct image_info info1, *info = &info1;
1880
    TaskState ts1, *ts = &ts1;
1881
    CPUState *env;
1882
    int optind;
1883
    const char *r;
1884
    int gdbstub_port = 0;
1885
    int drop_ld_preload = 0, environ_count = 0;
1886
    char **target_environ, **wrk, **dst;
1887

    
1888
    if (argc <= 1)
1889
        usage();
1890

    
1891
    /* init debug */
1892
    cpu_set_log_filename(DEBUG_LOGFILE);
1893

    
1894
    cpu_model = NULL;
1895
    optind = 1;
1896
    for(;;) {
1897
        if (optind >= argc)
1898
            break;
1899
        r = argv[optind];
1900
        if (r[0] != '-')
1901
            break;
1902
        optind++;
1903
        r++;
1904
        if (!strcmp(r, "-")) {
1905
            break;
1906
        } else if (!strcmp(r, "d")) {
1907
            int mask;
1908
            CPULogItem *item;
1909

    
1910
            if (optind >= argc)
1911
                break;
1912

    
1913
            r = argv[optind++];
1914
            mask = cpu_str_to_log_mask(r);
1915
            if (!mask) {
1916
                printf("Log items (comma separated):\n");
1917
                for(item = cpu_log_items; item->mask != 0; item++) {
1918
                    printf("%-10s %s\n", item->name, item->help);
1919
                }
1920
                exit(1);
1921
            }
1922
            cpu_set_log(mask);
1923
        } else if (!strcmp(r, "s")) {
1924
            r = argv[optind++];
1925
            x86_stack_size = strtol(r, (char **)&r, 0);
1926
            if (x86_stack_size <= 0)
1927
                usage();
1928
            if (*r == 'M')
1929
                x86_stack_size *= 1024 * 1024;
1930
            else if (*r == 'k' || *r == 'K')
1931
                x86_stack_size *= 1024;
1932
        } else if (!strcmp(r, "L")) {
1933
            interp_prefix = argv[optind++];
1934
        } else if (!strcmp(r, "p")) {
1935
            qemu_host_page_size = atoi(argv[optind++]);
1936
            if (qemu_host_page_size == 0 ||
1937
                (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
1938
                fprintf(stderr, "page size must be a power of two\n");
1939
                exit(1);
1940
            }
1941
        } else if (!strcmp(r, "g")) {
1942
            gdbstub_port = atoi(argv[optind++]);
1943
        } else if (!strcmp(r, "r")) {
1944
            qemu_uname_release = argv[optind++];
1945
        } else if (!strcmp(r, "cpu")) {
1946
            cpu_model = argv[optind++];
1947
            if (strcmp(cpu_model, "?") == 0) {
1948
/* XXX: implement xxx_cpu_list for targets that still miss it */
1949
#if defined(cpu_list)
1950
                    cpu_list(stdout, &fprintf);
1951
#endif
1952
                _exit(1);
1953
            }
1954
        } else if (!strcmp(r, "drop-ld-preload")) {
1955
            drop_ld_preload = 1;
1956
        } else
1957
#ifdef USE_CODE_COPY
1958
        if (!strcmp(r, "no-code-copy")) {
1959
            code_copy_enabled = 0;
1960
        } else
1961
#endif
1962
        {
1963
            usage();
1964
        }
1965
    }
1966
    if (optind >= argc)
1967
        usage();
1968
    filename = argv[optind];
1969

    
1970
    /* Zero out regs */
1971
    memset(regs, 0, sizeof(struct target_pt_regs));
1972

    
1973
    /* Zero out image_info */
1974
    memset(info, 0, sizeof(struct image_info));
1975

    
1976
    /* Scan interp_prefix dir for replacement files. */
1977
    init_paths(interp_prefix);
1978

    
1979
    /* NOTE: we need to init the CPU at this stage to get
1980
       qemu_host_page_size */
1981
    env = cpu_init();
1982
    global_env = env;
1983

    
1984
    wrk = environ;
1985
    while (*(wrk++))
1986
        environ_count++;
1987

    
1988
    target_environ = malloc((environ_count + 1) * sizeof(char *));
1989
    if (!target_environ)
1990
        abort();
1991
    for (wrk = environ, dst = target_environ; *wrk; wrk++) {
1992
        if (drop_ld_preload && !strncmp(*wrk, "LD_PRELOAD=", 11))
1993
            continue;
1994
        *(dst++) = strdup(*wrk);
1995
    }
1996
    *dst = NULL; /* NULL terminate target_environ */
1997

    
1998
    if (loader_exec(filename, argv+optind, target_environ, regs, info) != 0) {
1999
        printf("Error loading %s\n", filename);
2000
        _exit(1);
2001
    }
2002

    
2003
    for (wrk = target_environ; *wrk; wrk++) {
2004
        free(*wrk);
2005
    }
2006

    
2007
    free(target_environ);
2008

    
2009
    if (loglevel) {
2010
        page_dump(logfile);
2011

    
2012
        fprintf(logfile, "start_brk   0x" TARGET_FMT_lx "\n", info->start_brk);
2013
        fprintf(logfile, "end_code    0x" TARGET_FMT_lx "\n", info->end_code);
2014
        fprintf(logfile, "start_code  0x" TARGET_FMT_lx "\n",
2015
                info->start_code);
2016
        fprintf(logfile, "start_data  0x" TARGET_FMT_lx "\n",
2017
                info->start_data);
2018
        fprintf(logfile, "end_data    0x" TARGET_FMT_lx "\n", info->end_data);
2019
        fprintf(logfile, "start_stack 0x" TARGET_FMT_lx "\n",
2020
                info->start_stack);
2021
        fprintf(logfile, "brk         0x" TARGET_FMT_lx "\n", info->brk);
2022
        fprintf(logfile, "entry       0x" TARGET_FMT_lx "\n", info->entry);
2023
    }
2024

    
2025
    target_set_brk(info->brk);
2026
    syscall_init();
2027
    signal_init();
2028

    
2029
    /* build Task State */
2030
    memset(ts, 0, sizeof(TaskState));
2031
    env->opaque = ts;
2032
    ts->used = 1;
2033
    ts->info = info;
2034
    env->user_mode_only = 1;
2035

    
2036
#if defined(TARGET_I386)
2037
    cpu_x86_set_cpl(env, 3);
2038

    
2039
    env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
2040
    env->hflags |= HF_PE_MASK;
2041
    if (env->cpuid_features & CPUID_SSE) {
2042
        env->cr[4] |= CR4_OSFXSR_MASK;
2043
        env->hflags |= HF_OSFXSR_MASK;
2044
    }
2045

    
2046
    /* flags setup : we activate the IRQs by default as in user mode */
2047
    env->eflags |= IF_MASK;
2048

    
2049
    /* linux register setup */
2050
#if defined(TARGET_X86_64)
2051
    env->regs[R_EAX] = regs->rax;
2052
    env->regs[R_EBX] = regs->rbx;
2053
    env->regs[R_ECX] = regs->rcx;
2054
    env->regs[R_EDX] = regs->rdx;
2055
    env->regs[R_ESI] = regs->rsi;
2056
    env->regs[R_EDI] = regs->rdi;
2057
    env->regs[R_EBP] = regs->rbp;
2058
    env->regs[R_ESP] = regs->rsp;
2059
    env->eip = regs->rip;
2060
#else
2061
    env->regs[R_EAX] = regs->eax;
2062
    env->regs[R_EBX] = regs->ebx;
2063
    env->regs[R_ECX] = regs->ecx;
2064
    env->regs[R_EDX] = regs->edx;
2065
    env->regs[R_ESI] = regs->esi;
2066
    env->regs[R_EDI] = regs->edi;
2067
    env->regs[R_EBP] = regs->ebp;
2068
    env->regs[R_ESP] = regs->esp;
2069
    env->eip = regs->eip;
2070
#endif
2071

    
2072
    /* linux interrupt setup */
2073
    env->idt.base = h2g(idt_table);
2074
    env->idt.limit = sizeof(idt_table) - 1;
2075
    set_idt(0, 0);
2076
    set_idt(1, 0);
2077
    set_idt(2, 0);
2078
    set_idt(3, 3);
2079
    set_idt(4, 3);
2080
    set_idt(5, 3);
2081
    set_idt(6, 0);
2082
    set_idt(7, 0);
2083
    set_idt(8, 0);
2084
    set_idt(9, 0);
2085
    set_idt(10, 0);
2086
    set_idt(11, 0);
2087
    set_idt(12, 0);
2088
    set_idt(13, 0);
2089
    set_idt(14, 0);
2090
    set_idt(15, 0);
2091
    set_idt(16, 0);
2092
    set_idt(17, 0);
2093
    set_idt(18, 0);
2094
    set_idt(19, 0);
2095
    set_idt(0x80, 3);
2096

    
2097
    /* linux segment setup */
2098
    env->gdt.base = h2g(gdt_table);
2099
    env->gdt.limit = sizeof(gdt_table) - 1;
2100
    write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
2101
             DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
2102
             (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
2103
    write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
2104
             DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
2105
             (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
2106
    cpu_x86_load_seg(env, R_CS, __USER_CS);
2107
    cpu_x86_load_seg(env, R_DS, __USER_DS);
2108
    cpu_x86_load_seg(env, R_ES, __USER_DS);
2109
    cpu_x86_load_seg(env, R_SS, __USER_DS);
2110
    cpu_x86_load_seg(env, R_FS, __USER_DS);
2111
    cpu_x86_load_seg(env, R_GS, __USER_DS);
2112

    
2113
    /* This hack makes Wine work... */
2114
    env->segs[R_FS].selector = 0;
2115
#elif defined(TARGET_ARM)
2116
    {
2117
        int i;
2118
        if (cpu_model == NULL)
2119
            cpu_model = "arm926";
2120
        cpu_arm_set_model(env, cpu_model);
2121
        cpsr_write(env, regs->uregs[16], 0xffffffff);
2122
        for(i = 0; i < 16; i++) {
2123
            env->regs[i] = regs->uregs[i];
2124
        }
2125
    }
2126
#elif defined(TARGET_SPARC)
2127
    {
2128
        int i;
2129
        const sparc_def_t *def;
2130
#ifdef TARGET_SPARC64
2131
        if (cpu_model == NULL)
2132
            cpu_model = "TI UltraSparc II";
2133
#else
2134
        if (cpu_model == NULL)
2135
            cpu_model = "Fujitsu MB86904";
2136
#endif
2137
        sparc_find_by_name(cpu_model, &def);
2138
        if (def == NULL) {
2139
            fprintf(stderr, "Unable to find Sparc CPU definition\n");
2140
            exit(1);
2141
        }
2142
        cpu_sparc_register(env, def);
2143
        env->pc = regs->pc;
2144
        env->npc = regs->npc;
2145
        env->y = regs->y;
2146
        for(i = 0; i < 8; i++)
2147
            env->gregs[i] = regs->u_regs[i];
2148
        for(i = 0; i < 8; i++)
2149
            env->regwptr[i] = regs->u_regs[i + 8];
2150
    }
2151
#elif defined(TARGET_PPC)
2152
    {
2153
        ppc_def_t *def;
2154
        int i;
2155

    
2156
        /* Choose and initialise CPU */
2157
        if (cpu_model == NULL)
2158
            cpu_model = "750";
2159
        ppc_find_by_name(cpu_model, &def);
2160
        if (def == NULL) {
2161
            cpu_abort(env,
2162
                      "Unable to find PowerPC CPU definition\n");
2163
        }
2164
        cpu_ppc_register(env, def);
2165
        cpu_ppc_reset(env);
2166
        for (i = 0; i < 32; i++) {
2167
            if (i != 12 && i != 6 && i != 13)
2168
                env->msr[i] = (regs->msr >> i) & 1;
2169
        }
2170
#if defined(TARGET_PPC64)
2171
        msr_sf = 1;
2172
#endif
2173
        env->nip = regs->nip;
2174
        for(i = 0; i < 32; i++) {
2175
            env->gpr[i] = regs->gpr[i];
2176
        }
2177
    }
2178
#elif defined(TARGET_M68K)
2179
    {
2180
        if (cpu_model == NULL)
2181
            cpu_model = "any";
2182
        if (cpu_m68k_set_model(env, cpu_model)) {
2183
            cpu_abort(cpu_single_env,
2184
                      "Unable to find m68k CPU definition\n");
2185
        }
2186
        env->pc = regs->pc;
2187
        env->dregs[0] = regs->d0;
2188
        env->dregs[1] = regs->d1;
2189
        env->dregs[2] = regs->d2;
2190
        env->dregs[3] = regs->d3;
2191
        env->dregs[4] = regs->d4;
2192
        env->dregs[5] = regs->d5;
2193
        env->dregs[6] = regs->d6;
2194
        env->dregs[7] = regs->d7;
2195
        env->aregs[0] = regs->a0;
2196
        env->aregs[1] = regs->a1;
2197
        env->aregs[2] = regs->a2;
2198
        env->aregs[3] = regs->a3;
2199
        env->aregs[4] = regs->a4;
2200
        env->aregs[5] = regs->a5;
2201
        env->aregs[6] = regs->a6;
2202
        env->aregs[7] = regs->usp;
2203
        env->sr = regs->sr;
2204
        ts->sim_syscalls = 1;
2205
    }
2206
#elif defined(TARGET_MIPS)
2207
    {
2208
        mips_def_t *def;
2209
        int i;
2210

    
2211
        /* Choose and initialise CPU */
2212
        if (cpu_model == NULL)
2213
#if defined(TARGET_MIPSN32) || defined(TARGET_MIPS64)
2214
            cpu_model = "20Kc";
2215
#else
2216
            cpu_model = "24Kf";
2217
#endif
2218
        mips_find_by_name(cpu_model, &def);
2219
        if (def == NULL)
2220
            cpu_abort(env, "Unable to find MIPS CPU definition\n");
2221
        cpu_mips_register(env, def);
2222

    
2223
        for(i = 0; i < 32; i++) {
2224
            env->gpr[i][env->current_tc] = regs->regs[i];
2225
        }
2226
        env->PC[env->current_tc] = regs->cp0_epc;
2227
    }
2228
#elif defined(TARGET_SH4)
2229
    {
2230
        int i;
2231

    
2232
        for(i = 0; i < 16; i++) {
2233
            env->gregs[i] = regs->regs[i];
2234
        }
2235
        env->pc = regs->pc;
2236
    }
2237
#elif defined(TARGET_ALPHA)
2238
    {
2239
        int i;
2240

    
2241
        for(i = 0; i < 28; i++) {
2242
            env->ir[i] = ((target_ulong *)regs)[i];
2243
        }
2244
        env->ipr[IPR_USP] = regs->usp;
2245
        env->ir[30] = regs->usp;
2246
        env->pc = regs->pc;
2247
        env->unique = regs->unique;
2248
    }
2249
#elif defined(TARGET_CRIS)
2250
    {
2251
            env->regs[0] = regs->r0;
2252
            env->regs[1] = regs->r1;
2253
            env->regs[2] = regs->r2;
2254
            env->regs[3] = regs->r3;
2255
            env->regs[4] = regs->r4;
2256
            env->regs[5] = regs->r5;
2257
            env->regs[6] = regs->r6;
2258
            env->regs[7] = regs->r7;
2259
            env->regs[8] = regs->r8;
2260
            env->regs[9] = regs->r9;
2261
            env->regs[10] = regs->r10;
2262
            env->regs[11] = regs->r11;
2263
            env->regs[12] = regs->r12;
2264
            env->regs[13] = regs->r13;
2265
            env->regs[14] = info->start_stack;
2266
            env->regs[15] = regs->acr;            
2267
            env->pc = regs->erp;
2268
    }
2269
#else
2270
#error unsupported target CPU
2271
#endif
2272

    
2273
#if defined(TARGET_ARM) || defined(TARGET_M68K)
2274
    ts->stack_base = info->start_stack;
2275
    ts->heap_base = info->brk;
2276
    /* This will be filled in on the first SYS_HEAPINFO call.  */
2277
    ts->heap_limit = 0;
2278
#endif
2279

    
2280
    if (gdbstub_port) {
2281
        gdbserver_start (gdbstub_port);
2282
        gdb_handlesig(env, 0);
2283
    }
2284
    cpu_loop(env);
2285
    /* never exits */
2286
    return 0;
2287
}