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

    
645
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
646
                if (sig)
647
                  {
648
                    info.si_signo = sig;
649
                    info.si_errno = 0;
650
                    info.si_code = TARGET_TRAP_BRKPT;
651
                    queue_signal(info.si_signo, &info);
652
                  }
653
            }
654
            break;
655
        default:
656
            printf ("Unhandled trap: 0x%x\n", trapnr);
657
            cpu_dump_state(env, stderr, fprintf, 0);
658
            exit (1);
659
        }
660
        process_pending_signals (env);
661
    }
662
}
663

    
664
#endif
665

    
666
#ifdef TARGET_PPC
667

    
668
static inline uint64_t cpu_ppc_get_tb (CPUState *env)
669
{
670
    /* TO FIX */
671
    return 0;
672
}
673

    
674
uint32_t cpu_ppc_load_tbl (CPUState *env)
675
{
676
    return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
677
}
678

    
679
uint32_t cpu_ppc_load_tbu (CPUState *env)
680
{
681
    return cpu_ppc_get_tb(env) >> 32;
682
}
683

    
684
static void cpu_ppc_store_tb (CPUState *env, uint64_t value)
685
{
686
    /* TO FIX */
687
}
688

    
689
void cpu_ppc_store_tbu (CPUState *env, uint32_t value)
690
{
691
    cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env));
692
}
693

    
694
void cpu_ppc_store_tbl (CPUState *env, uint32_t value)
695
{
696
    cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value);
697
}
698

    
699
void cpu_ppc601_store_rtcu (CPUState *env, uint32_t value)
700
__attribute__ (( alias ("cpu_ppc_store_tbu") ));
701

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

    
705
void cpu_ppc601_store_rtcl (CPUState *env, uint32_t value)
706
{
707
    cpu_ppc_store_tbl(env, value & 0x3FFFFF80);
708
}
709

    
710
uint32_t cpu_ppc601_load_rtcl (CPUState *env)
711
{
712
    return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
713
}
714

    
715
/* XXX: to be fixed */
716
int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, target_ulong *valp)
717
{
718
    return -1;
719
}
720

    
721
int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, target_ulong val)
722
{
723
    return -1;
724
}
725

    
726
#define EXCP_DUMP(env, fmt, args...)                                         \
727
do {                                                                          \
728
    fprintf(stderr, fmt , ##args);                                            \
729
    cpu_dump_state(env, stderr, fprintf, 0);                                  \
730
    if (loglevel != 0) {                                                      \
731
        fprintf(logfile, fmt , ##args);                                       \
732
        cpu_dump_state(env, logfile, fprintf, 0);                             \
733
    }                                                                         \
734
} while (0)
735

    
736
void cpu_loop(CPUPPCState *env)
737
{
738
    target_siginfo_t info;
739
    int trapnr;
740
    uint32_t ret;
741

    
742
    for(;;) {
743
        trapnr = cpu_ppc_exec(env);
744
        switch(trapnr) {
745
        case POWERPC_EXCP_NONE:
746
            /* Just go on */
747
            break;
748
        case POWERPC_EXCP_CRITICAL: /* Critical input                        */
749
            cpu_abort(env, "Critical interrupt while in user mode. "
750
                      "Aborting\n");
751
            break;
752
        case POWERPC_EXCP_MCHECK:   /* Machine check exception               */
753
            cpu_abort(env, "Machine check exception while in user mode. "
754
                      "Aborting\n");
755
            break;
756
        case POWERPC_EXCP_DSI:      /* Data storage exception                */
757
            EXCP_DUMP(env, "Invalid data memory access: 0x" ADDRX "\n",
758
                      env->spr[SPR_DAR]);
759
            /* XXX: check this. Seems bugged */
760
            switch (env->error_code & 0xFF000000) {
761
            case 0x40000000:
762
                info.si_signo = TARGET_SIGSEGV;
763
                info.si_errno = 0;
764
                info.si_code = TARGET_SEGV_MAPERR;
765
                break;
766
            case 0x04000000:
767
                info.si_signo = TARGET_SIGILL;
768
                info.si_errno = 0;
769
                info.si_code = TARGET_ILL_ILLADR;
770
                break;
771
            case 0x08000000:
772
                info.si_signo = TARGET_SIGSEGV;
773
                info.si_errno = 0;
774
                info.si_code = TARGET_SEGV_ACCERR;
775
                break;
776
            default:
777
                /* Let's send a regular segfault... */
778
                EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
779
                          env->error_code);
780
                info.si_signo = TARGET_SIGSEGV;
781
                info.si_errno = 0;
782
                info.si_code = TARGET_SEGV_MAPERR;
783
                break;
784
            }
785
            info._sifields._sigfault._addr = env->nip;
786
            queue_signal(info.si_signo, &info);
787
            break;
788
        case POWERPC_EXCP_ISI:      /* Instruction storage exception         */
789
            EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" ADDRX "\n",
790
                      env->spr[SPR_DAR]);
791
            /* XXX: check this */
792
            switch (env->error_code & 0xFF000000) {
793
            case 0x40000000:
794
                info.si_signo = TARGET_SIGSEGV;
795
            info.si_errno = 0;
796
                info.si_code = TARGET_SEGV_MAPERR;
797
                break;
798
            case 0x10000000:
799
            case 0x08000000:
800
                info.si_signo = TARGET_SIGSEGV;
801
                info.si_errno = 0;
802
                info.si_code = TARGET_SEGV_ACCERR;
803
                break;
804
            default:
805
                /* Let's send a regular segfault... */
806
                EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
807
                          env->error_code);
808
                info.si_signo = TARGET_SIGSEGV;
809
                info.si_errno = 0;
810
                info.si_code = TARGET_SEGV_MAPERR;
811
                break;
812
            }
813
            info._sifields._sigfault._addr = env->nip - 4;
814
            queue_signal(info.si_signo, &info);
815
            break;
816
        case POWERPC_EXCP_EXTERNAL: /* External input                        */
817
            cpu_abort(env, "External interrupt while in user mode. "
818
                      "Aborting\n");
819
            break;
820
        case POWERPC_EXCP_ALIGN:    /* Alignment exception                   */
821
            EXCP_DUMP(env, "Unaligned memory access\n");
822
            /* XXX: check this */
823
            info.si_signo = TARGET_SIGBUS;
824
            info.si_errno = 0;
825
            info.si_code = TARGET_BUS_ADRALN;
826
            info._sifields._sigfault._addr = env->nip - 4;
827
            queue_signal(info.si_signo, &info);
828
            break;
829
        case POWERPC_EXCP_PROGRAM:  /* Program exception                     */
830
            /* XXX: check this */
831
            switch (env->error_code & ~0xF) {
832
            case POWERPC_EXCP_FP:
833
                EXCP_DUMP(env, "Floating point program exception\n");
834
                /* Set FX */
835
                env->fpscr[7] |= 0x8;
836
                /* Finally, update FEX */
837
                if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
838
                    ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
839
                    env->fpscr[7] |= 0x4;
840
                info.si_signo = TARGET_SIGFPE;
841
                info.si_errno = 0;
842
                switch (env->error_code & 0xF) {
843
                case POWERPC_EXCP_FP_OX:
844
                    info.si_code = TARGET_FPE_FLTOVF;
845
                    break;
846
                case POWERPC_EXCP_FP_UX:
847
                    info.si_code = TARGET_FPE_FLTUND;
848
                    break;
849
                case POWERPC_EXCP_FP_ZX:
850
                case POWERPC_EXCP_FP_VXZDZ:
851
                    info.si_code = TARGET_FPE_FLTDIV;
852
                    break;
853
                case POWERPC_EXCP_FP_XX:
854
                    info.si_code = TARGET_FPE_FLTRES;
855
                    break;
856
                case POWERPC_EXCP_FP_VXSOFT:
857
                    info.si_code = TARGET_FPE_FLTINV;
858
                    break;
859
                case POWERPC_EXCP_FP_VXNAN:
860
                case POWERPC_EXCP_FP_VXISI:
861
                case POWERPC_EXCP_FP_VXIDI:
862
                case POWERPC_EXCP_FP_VXIMZ:
863
                case POWERPC_EXCP_FP_VXVC:
864
                case POWERPC_EXCP_FP_VXSQRT:
865
                case POWERPC_EXCP_FP_VXCVI:
866
                    info.si_code = TARGET_FPE_FLTSUB;
867
                    break;
868
                default:
869
                    EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
870
                              env->error_code);
871
                    break;
872
                }
873
                break;
874
            case POWERPC_EXCP_INVAL:
875
                EXCP_DUMP(env, "Invalid instruction\n");
876
                info.si_signo = TARGET_SIGILL;
877
                info.si_errno = 0;
878
                switch (env->error_code & 0xF) {
879
                case POWERPC_EXCP_INVAL_INVAL:
880
                    info.si_code = TARGET_ILL_ILLOPC;
881
                    break;
882
                case POWERPC_EXCP_INVAL_LSWX:
883
                    info.si_code = TARGET_ILL_ILLOPN;
884
                    break;
885
                case POWERPC_EXCP_INVAL_SPR:
886
                    info.si_code = TARGET_ILL_PRVREG;
887
                    break;
888
                case POWERPC_EXCP_INVAL_FP:
889
                    info.si_code = TARGET_ILL_COPROC;
890
                    break;
891
                default:
892
                    EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
893
                              env->error_code & 0xF);
894
                    info.si_code = TARGET_ILL_ILLADR;
895
                    break;
896
                }
897
                break;
898
            case POWERPC_EXCP_PRIV:
899
                EXCP_DUMP(env, "Privilege violation\n");
900
                info.si_signo = TARGET_SIGILL;
901
                info.si_errno = 0;
902
                switch (env->error_code & 0xF) {
903
                case POWERPC_EXCP_PRIV_OPC:
904
                    info.si_code = TARGET_ILL_PRVOPC;
905
                    break;
906
                case POWERPC_EXCP_PRIV_REG:
907
                    info.si_code = TARGET_ILL_PRVREG;
908
                    break;
909
                default:
910
                    EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
911
                              env->error_code & 0xF);
912
                    info.si_code = TARGET_ILL_PRVOPC;
913
                    break;
914
                }
915
                break;
916
            case POWERPC_EXCP_TRAP:
917
                cpu_abort(env, "Tried to call a TRAP\n");
918
                break;
919
            default:
920
                /* Should not happen ! */
921
                cpu_abort(env, "Unknown program exception (%02x)\n",
922
                          env->error_code);
923
                break;
924
            }
925
            info._sifields._sigfault._addr = env->nip - 4;
926
            queue_signal(info.si_signo, &info);
927
            break;
928
        case POWERPC_EXCP_FPU:      /* Floating-point unavailable exception  */
929
            EXCP_DUMP(env, "No floating point allowed\n");
930
            info.si_signo = TARGET_SIGILL;
931
            info.si_errno = 0;
932
            info.si_code = TARGET_ILL_COPROC;
933
            info._sifields._sigfault._addr = env->nip - 4;
934
            queue_signal(info.si_signo, &info);
935
            break;
936
        case POWERPC_EXCP_SYSCALL:  /* System call exception                 */
937
            cpu_abort(env, "Syscall exception while in user mode. "
938
                      "Aborting\n");
939
            break;
940
        case POWERPC_EXCP_APU:      /* Auxiliary processor unavailable       */
941
            EXCP_DUMP(env, "No APU instruction allowed\n");
942
            info.si_signo = TARGET_SIGILL;
943
            info.si_errno = 0;
944
            info.si_code = TARGET_ILL_COPROC;
945
            info._sifields._sigfault._addr = env->nip - 4;
946
            queue_signal(info.si_signo, &info);
947
            break;
948
        case POWERPC_EXCP_DECR:     /* Decrementer exception                 */
949
            cpu_abort(env, "Decrementer interrupt while in user mode. "
950
                      "Aborting\n");
951
            break;
952
        case POWERPC_EXCP_FIT:      /* Fixed-interval timer interrupt        */
953
            cpu_abort(env, "Fix interval timer interrupt while in user mode. "
954
                      "Aborting\n");
955
            break;
956
        case POWERPC_EXCP_WDT:      /* Watchdog timer interrupt              */
957
            cpu_abort(env, "Watchdog timer interrupt while in user mode. "
958
                      "Aborting\n");
959
            break;
960
        case POWERPC_EXCP_DTLB:     /* Data TLB error                        */
961
            cpu_abort(env, "Data TLB exception while in user mode. "
962
                      "Aborting\n");
963
            break;
964
        case POWERPC_EXCP_ITLB:     /* Instruction TLB error                 */
965
            cpu_abort(env, "Instruction TLB exception while in user mode. "
966
                      "Aborting\n");
967
            break;
968
        case POWERPC_EXCP_DEBUG:    /* Debug interrupt                       */
969
            /* XXX: check this */
970
            {
971
                int sig;
972

    
973
                sig = gdb_handlesig(env, TARGET_SIGTRAP);
974
                if (sig) {
975
                    info.si_signo = sig;
976
                    info.si_errno = 0;
977
                    info.si_code = TARGET_TRAP_BRKPT;
978
                    queue_signal(info.si_signo, &info);
979
                  }
980
            }
981
            break;
982
#if defined(TARGET_PPCEMB)
983
        case POWERPC_EXCP_SPEU:     /* SPE/embedded floating-point unavail.  */
984
            EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
985
            info.si_signo = TARGET_SIGILL;
986
            info.si_errno = 0;
987
            info.si_code = TARGET_ILL_COPROC;
988
            info._sifields._sigfault._addr = env->nip - 4;
989
            queue_signal(info.si_signo, &info);
990
            break;
991
        case POWERPC_EXCP_EFPDI:    /* Embedded floating-point data IRQ      */
992
            cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
993
            break;
994
        case POWERPC_EXCP_EFPRI:    /* Embedded floating-point round IRQ     */
995
            cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
996
            break;
997
        case POWERPC_EXCP_EPERFM:   /* Embedded performance monitor IRQ      */
998
            cpu_abort(env, "Performance monitor exception not handled\n");
999
            break;
1000
        case POWERPC_EXCP_DOORI:    /* Embedded doorbell interrupt           */
1001
            cpu_abort(env, "Doorbell interrupt while in user mode. "
1002
                       "Aborting\n");
1003
            break;
1004
        case POWERPC_EXCP_DOORCI:   /* Embedded doorbell critical interrupt  */
1005
            cpu_abort(env, "Doorbell critical interrupt while in user mode. "
1006
                      "Aborting\n");
1007
            break;
1008
        case POWERPC_EXCP_RESET:    /* System reset exception                */
1009
            cpu_abort(env, "Reset interrupt while in user mode. "
1010
                      "Aborting\n");
1011
            break;
1012
#endif /* defined(TARGET_PPCEMB) */
1013
#if defined(TARGET_PPC64) /* PowerPC 64 */
1014
        case POWERPC_EXCP_DSEG:     /* Data segment exception                */
1015
            cpu_abort(env, "Data segment exception while in user mode. "
1016
                      "Aborting\n");
1017
            break;
1018
        case POWERPC_EXCP_ISEG:     /* Instruction segment exception         */
1019
            cpu_abort(env, "Instruction segment exception "
1020
                      "while in user mode. Aborting\n");
1021
            break;
1022
#endif /* defined(TARGET_PPC64) */
1023
#if defined(TARGET_PPC64H) /* PowerPC 64 with hypervisor mode support */
1024
        case POWERPC_EXCP_HDECR:    /* Hypervisor decrementer exception      */
1025
            cpu_abort(env, "Hypervisor decrementer interrupt "
1026
                      "while in user mode. Aborting\n");
1027
            break;
1028
#endif /* defined(TARGET_PPC64H) */
1029
        case POWERPC_EXCP_TRACE:    /* Trace exception                       */
1030
            /* Nothing to do:
1031
             * we use this exception to emulate step-by-step execution mode.
1032
             */
1033
            break;
1034
#if defined(TARGET_PPC64H) /* PowerPC 64 with hypervisor mode support */
1035
        case POWERPC_EXCP_HDSI:     /* Hypervisor data storage exception     */
1036
            cpu_abort(env, "Hypervisor data storage exception "
1037
                      "while in user mode. Aborting\n");
1038
            break;
1039
        case POWERPC_EXCP_HISI:     /* Hypervisor instruction storage excp   */
1040
            cpu_abort(env, "Hypervisor instruction storage exception "
1041
                      "while in user mode. Aborting\n");
1042
            break;
1043
        case POWERPC_EXCP_HDSEG:    /* Hypervisor data segment exception     */
1044
            cpu_abort(env, "Hypervisor data segment exception "
1045
                      "while in user mode. Aborting\n");
1046
            break;
1047
        case POWERPC_EXCP_HISEG:    /* Hypervisor instruction segment excp   */
1048
            cpu_abort(env, "Hypervisor instruction segment exception "
1049
                      "while in user mode. Aborting\n");
1050
            break;
1051
#endif /* defined(TARGET_PPC64H) */
1052
        case POWERPC_EXCP_VPU:      /* Vector unavailable exception          */
1053
            EXCP_DUMP(env, "No Altivec instructions allowed\n");
1054
            info.si_signo = TARGET_SIGILL;
1055
            info.si_errno = 0;
1056
            info.si_code = TARGET_ILL_COPROC;
1057
            info._sifields._sigfault._addr = env->nip - 4;
1058
            queue_signal(info.si_signo, &info);
1059
            break;
1060
        case POWERPC_EXCP_PIT:      /* Programmable interval timer IRQ       */
1061
            cpu_abort(env, "Programable interval timer interrupt "
1062
                      "while in user mode. Aborting\n");
1063
            break;
1064
        case POWERPC_EXCP_IO:       /* IO error exception                    */
1065
            cpu_abort(env, "IO error exception while in user mode. "
1066
                      "Aborting\n");
1067
            break;
1068
        case POWERPC_EXCP_RUNM:     /* Run mode exception                    */
1069
            cpu_abort(env, "Run mode exception while in user mode. "
1070
                      "Aborting\n");
1071
            break;
1072
        case POWERPC_EXCP_EMUL:     /* Emulation trap exception              */
1073
            cpu_abort(env, "Emulation trap exception not handled\n");
1074
            break;
1075
        case POWERPC_EXCP_IFTLB:    /* Instruction fetch TLB error           */
1076
            cpu_abort(env, "Instruction fetch TLB exception "
1077
                      "while in user-mode. Aborting");
1078
            break;
1079
        case POWERPC_EXCP_DLTLB:    /* Data load TLB miss                    */
1080
            cpu_abort(env, "Data load TLB exception while in user-mode. "
1081
                      "Aborting");
1082
            break;
1083
        case POWERPC_EXCP_DSTLB:    /* Data store TLB miss                   */
1084
            cpu_abort(env, "Data store TLB exception while in user-mode. "
1085
                      "Aborting");
1086
            break;
1087
        case POWERPC_EXCP_FPA:      /* Floating-point assist exception       */
1088
            cpu_abort(env, "Floating-point assist exception not handled\n");
1089
            break;
1090
        case POWERPC_EXCP_IABR:     /* Instruction address breakpoint        */
1091
            cpu_abort(env, "Instruction address breakpoint exception "
1092
                      "not handled\n");
1093
            break;
1094
        case POWERPC_EXCP_SMI:      /* System management interrupt           */
1095
            cpu_abort(env, "System management interrupt while in user mode. "
1096
                      "Aborting\n");
1097
            break;
1098
        case POWERPC_EXCP_THERM:    /* Thermal interrupt                     */
1099
            cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
1100
                      "Aborting\n");
1101
            break;
1102
        case POWERPC_EXCP_PERFM:   /* Embedded performance monitor IRQ      */
1103
            cpu_abort(env, "Performance monitor exception not handled\n");
1104
            break;
1105
        case POWERPC_EXCP_VPUA:     /* Vector assist exception               */
1106
            cpu_abort(env, "Vector assist exception not handled\n");
1107
            break;
1108
        case POWERPC_EXCP_SOFTP:    /* Soft patch exception                  */
1109
            cpu_abort(env, "Soft patch exception not handled\n");
1110
            break;
1111
        case POWERPC_EXCP_MAINT:    /* Maintenance exception                 */
1112
            cpu_abort(env, "Maintenance exception while in user mode. "
1113
                      "Aborting\n");
1114
            break;
1115
        case POWERPC_EXCP_STOP:     /* stop translation                      */
1116
            /* We did invalidate the instruction cache. Go on */
1117
            break;
1118
        case POWERPC_EXCP_BRANCH:   /* branch instruction:                   */
1119
            /* We just stopped because of a branch. Go on */
1120
            break;
1121
        case POWERPC_EXCP_SYSCALL_USER:
1122
            /* system call in user-mode emulation */
1123
            /* WARNING:
1124
             * PPC ABI uses overflow flag in cr0 to signal an error
1125
             * in syscalls.
1126
             */
1127
#if 0
1128
            printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
1129
                   env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
1130
#endif
1131
            env->crf[0] &= ~0x1;
1132
            ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
1133
                             env->gpr[5], env->gpr[6], env->gpr[7],
1134
                             env->gpr[8]);
1135
            if (ret > (uint32_t)(-515)) {
1136
                env->crf[0] |= 0x1;
1137
                ret = -ret;
1138
            }
1139
            env->gpr[3] = ret;
1140
#if 0
1141
            printf("syscall returned 0x%08x (%d)\n", ret, ret);
1142
#endif
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
                target_ulong sp_reg;
1495
                target_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_M68K
1608

    
1609
void cpu_loop(CPUM68KState *env)
1610
{
1611
    int trapnr;
1612
    unsigned int n;
1613
    target_siginfo_t info;
1614
    TaskState *ts = env->opaque;
1615

    
1616
    for(;;) {
1617
        trapnr = cpu_m68k_exec(env);
1618
        switch(trapnr) {
1619
        case EXCP_ILLEGAL:
1620
            {
1621
                if (ts->sim_syscalls) {
1622
                    uint16_t nr;
1623
                    nr = lduw(env->pc + 2);
1624
                    env->pc += 4;
1625
                    do_m68k_simcall(env, nr);
1626
                } else {
1627
                    goto do_sigill;
1628
                }
1629
            }
1630
            break;
1631
        case EXCP_HALT_INSN:
1632
            /* Semihosing syscall.  */
1633
            env->pc += 4;
1634
            do_m68k_semihosting(env, env->dregs[0]);
1635
            break;
1636
        case EXCP_LINEA:
1637
        case EXCP_LINEF:
1638
        case EXCP_UNSUPPORTED:
1639
        do_sigill:
1640
            info.si_signo = SIGILL;
1641
            info.si_errno = 0;
1642
            info.si_code = TARGET_ILL_ILLOPN;
1643
            info._sifields._sigfault._addr = env->pc;
1644
            queue_signal(info.si_signo, &info);
1645
            break;
1646
        case EXCP_TRAP0:
1647
            {
1648
                ts->sim_syscalls = 0;
1649
                n = env->dregs[0];
1650
                env->pc += 2;
1651
                env->dregs[0] = do_syscall(env,
1652
                                          n,
1653
                                          env->dregs[1],
1654
                                          env->dregs[2],
1655
                                          env->dregs[3],
1656
                                          env->dregs[4],
1657
                                          env->dregs[5],
1658
                                          env->dregs[6]);
1659
            }
1660
            break;
1661
        case EXCP_INTERRUPT:
1662
            /* just indicate that signals should be handled asap */
1663
            break;
1664
        case EXCP_ACCESS:
1665
            {
1666
                info.si_signo = SIGSEGV;
1667
                info.si_errno = 0;
1668
                /* XXX: check env->error_code */
1669
                info.si_code = TARGET_SEGV_MAPERR;
1670
                info._sifields._sigfault._addr = env->mmu.ar;
1671
                queue_signal(info.si_signo, &info);
1672
            }
1673
            break;
1674
        case EXCP_DEBUG:
1675
            {
1676
                int sig;
1677

    
1678
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1679
                if (sig)
1680
                  {
1681
                    info.si_signo = sig;
1682
                    info.si_errno = 0;
1683
                    info.si_code = TARGET_TRAP_BRKPT;
1684
                    queue_signal(info.si_signo, &info);
1685
                  }
1686
            }
1687
            break;
1688
        default:
1689
            fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1690
                    trapnr);
1691
            cpu_dump_state(env, stderr, fprintf, 0);
1692
            abort();
1693
        }
1694
        process_pending_signals(env);
1695
    }
1696
}
1697
#endif /* TARGET_M68K */
1698

    
1699
#ifdef TARGET_ALPHA
1700
void cpu_loop (CPUState *env)
1701
{
1702
    int trapnr;
1703
    target_siginfo_t info;
1704

    
1705
    while (1) {
1706
        trapnr = cpu_alpha_exec (env);
1707

    
1708
        switch (trapnr) {
1709
        case EXCP_RESET:
1710
            fprintf(stderr, "Reset requested. Exit\n");
1711
            exit(1);
1712
            break;
1713
        case EXCP_MCHK:
1714
            fprintf(stderr, "Machine check exception. Exit\n");
1715
            exit(1);
1716
            break;
1717
        case EXCP_ARITH:
1718
            fprintf(stderr, "Arithmetic trap.\n");
1719
            exit(1);
1720
            break;
1721
        case EXCP_HW_INTERRUPT:
1722
            fprintf(stderr, "External interrupt. Exit\n");
1723
            exit(1);
1724
            break;
1725
        case EXCP_DFAULT:
1726
            fprintf(stderr, "MMU data fault\n");
1727
            exit(1);
1728
            break;
1729
        case EXCP_DTB_MISS_PAL:
1730
            fprintf(stderr, "MMU data TLB miss in PALcode\n");
1731
            exit(1);
1732
            break;
1733
        case EXCP_ITB_MISS:
1734
            fprintf(stderr, "MMU instruction TLB miss\n");
1735
            exit(1);
1736
            break;
1737
        case EXCP_ITB_ACV:
1738
            fprintf(stderr, "MMU instruction access violation\n");
1739
            exit(1);
1740
            break;
1741
        case EXCP_DTB_MISS_NATIVE:
1742
            fprintf(stderr, "MMU data TLB miss\n");
1743
            exit(1);
1744
            break;
1745
        case EXCP_UNALIGN:
1746
            fprintf(stderr, "Unaligned access\n");
1747
            exit(1);
1748
            break;
1749
        case EXCP_OPCDEC:
1750
            fprintf(stderr, "Invalid instruction\n");
1751
            exit(1);
1752
            break;
1753
        case EXCP_FEN:
1754
            fprintf(stderr, "Floating-point not allowed\n");
1755
            exit(1);
1756
            break;
1757
        case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1):
1758
            fprintf(stderr, "Call to PALcode\n");
1759
            call_pal(env, (trapnr >> 6) | 0x80);
1760
            break;
1761
        case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1):
1762
            fprintf(stderr, "Privileged call to PALcode\n");
1763
            exit(1);
1764
            break;
1765
        case EXCP_DEBUG:
1766
            {
1767
                int sig;
1768

    
1769
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1770
                if (sig)
1771
                  {
1772
                    info.si_signo = sig;
1773
                    info.si_errno = 0;
1774
                    info.si_code = TARGET_TRAP_BRKPT;
1775
                    queue_signal(info.si_signo, &info);
1776
                  }
1777
            }
1778
            break;
1779
        default:
1780
            printf ("Unhandled trap: 0x%x\n", trapnr);
1781
            cpu_dump_state(env, stderr, fprintf, 0);
1782
            exit (1);
1783
        }
1784
        process_pending_signals (env);
1785
    }
1786
}
1787
#endif /* TARGET_ALPHA */
1788

    
1789
void usage(void)
1790
{
1791
    printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2007 Fabrice Bellard\n"
1792
           "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] [-cpu model] program [arguments...]\n"
1793
           "Linux CPU emulator (compiled for %s emulation)\n"
1794
           "\n"
1795
           "-h                print this help\n"
1796
           "-g port           wait gdb connection to port\n"
1797
           "-L path           set the elf interpreter prefix (default=%s)\n"
1798
           "-s size           set the stack size in bytes (default=%ld)\n"
1799
           "-cpu model        select CPU (-cpu ? for list)\n"
1800
           "-drop-ld-preload  drop LD_PRELOAD for target process\n"
1801
           "\n"
1802
           "debug options:\n"
1803
#ifdef USE_CODE_COPY
1804
           "-no-code-copy   disable code copy acceleration\n"
1805
#endif
1806
           "-d options   activate log (logfile=%s)\n"
1807
           "-p pagesize  set the host page size to 'pagesize'\n",
1808
           TARGET_ARCH,
1809
           interp_prefix,
1810
           x86_stack_size,
1811
           DEBUG_LOGFILE);
1812
    _exit(1);
1813
}
1814

    
1815
/* XXX: currently only used for async signals (see signal.c) */
1816
CPUState *global_env;
1817

    
1818
/* used to free thread contexts */
1819
TaskState *first_task_state;
1820

    
1821
int main(int argc, char **argv)
1822
{
1823
    const char *filename;
1824
    const char *cpu_model;
1825
    struct target_pt_regs regs1, *regs = &regs1;
1826
    struct image_info info1, *info = &info1;
1827
    TaskState ts1, *ts = &ts1;
1828
    CPUState *env;
1829
    int optind;
1830
    const char *r;
1831
    int gdbstub_port = 0;
1832
    int drop_ld_preload = 0, environ_count = 0;
1833
    char **target_environ, **wrk, **dst;
1834

    
1835
    if (argc <= 1)
1836
        usage();
1837

    
1838
    /* init debug */
1839
    cpu_set_log_filename(DEBUG_LOGFILE);
1840

    
1841
    cpu_model = NULL;
1842
    optind = 1;
1843
    for(;;) {
1844
        if (optind >= argc)
1845
            break;
1846
        r = argv[optind];
1847
        if (r[0] != '-')
1848
            break;
1849
        optind++;
1850
        r++;
1851
        if (!strcmp(r, "-")) {
1852
            break;
1853
        } else if (!strcmp(r, "d")) {
1854
            int mask;
1855
            CPULogItem *item;
1856

    
1857
            if (optind >= argc)
1858
                break;
1859

    
1860
            r = argv[optind++];
1861
            mask = cpu_str_to_log_mask(r);
1862
            if (!mask) {
1863
                printf("Log items (comma separated):\n");
1864
                for(item = cpu_log_items; item->mask != 0; item++) {
1865
                    printf("%-10s %s\n", item->name, item->help);
1866
                }
1867
                exit(1);
1868
            }
1869
            cpu_set_log(mask);
1870
        } else if (!strcmp(r, "s")) {
1871
            r = argv[optind++];
1872
            x86_stack_size = strtol(r, (char **)&r, 0);
1873
            if (x86_stack_size <= 0)
1874
                usage();
1875
            if (*r == 'M')
1876
                x86_stack_size *= 1024 * 1024;
1877
            else if (*r == 'k' || *r == 'K')
1878
                x86_stack_size *= 1024;
1879
        } else if (!strcmp(r, "L")) {
1880
            interp_prefix = argv[optind++];
1881
        } else if (!strcmp(r, "p")) {
1882
            qemu_host_page_size = atoi(argv[optind++]);
1883
            if (qemu_host_page_size == 0 ||
1884
                (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
1885
                fprintf(stderr, "page size must be a power of two\n");
1886
                exit(1);
1887
            }
1888
        } else if (!strcmp(r, "g")) {
1889
            gdbstub_port = atoi(argv[optind++]);
1890
        } else if (!strcmp(r, "r")) {
1891
            qemu_uname_release = argv[optind++];
1892
        } else if (!strcmp(r, "cpu")) {
1893
            cpu_model = argv[optind++];
1894
            if (strcmp(cpu_model, "?") == 0) {
1895
#if defined(TARGET_PPC)
1896
                ppc_cpu_list(stdout, &fprintf);
1897
#elif defined(TARGET_ARM)
1898
                arm_cpu_list();
1899
#elif defined(TARGET_MIPS)
1900
                mips_cpu_list(stdout, &fprintf);
1901
#elif defined(TARGET_SPARC)
1902
                sparc_cpu_list(stdout, &fprintf);
1903
#endif
1904
                _exit(1);
1905
            }
1906
        } else if (!strcmp(r, "drop-ld-preload")) {
1907
            drop_ld_preload = 1;
1908
        } else
1909
#ifdef USE_CODE_COPY
1910
        if (!strcmp(r, "no-code-copy")) {
1911
            code_copy_enabled = 0;
1912
        } else
1913
#endif
1914
        {
1915
            usage();
1916
        }
1917
    }
1918
    if (optind >= argc)
1919
        usage();
1920
    filename = argv[optind];
1921

    
1922
    /* Zero out regs */
1923
    memset(regs, 0, sizeof(struct target_pt_regs));
1924

    
1925
    /* Zero out image_info */
1926
    memset(info, 0, sizeof(struct image_info));
1927

    
1928
    /* Scan interp_prefix dir for replacement files. */
1929
    init_paths(interp_prefix);
1930

    
1931
    /* NOTE: we need to init the CPU at this stage to get
1932
       qemu_host_page_size */
1933
    env = cpu_init();
1934
    global_env = env;
1935

    
1936
    wrk = environ;
1937
    while (*(wrk++))
1938
        environ_count++;
1939

    
1940
    target_environ = malloc((environ_count + 1) * sizeof(char *));
1941
    if (!target_environ)
1942
        abort();
1943
    for (wrk = environ, dst = target_environ; *wrk; wrk++) {
1944
        if (drop_ld_preload && !strncmp(*wrk, "LD_PRELOAD=", 11))
1945
            continue;
1946
        *(dst++) = strdup(*wrk);
1947
    }
1948
    *dst = NULL; /* NULL terminate target_environ */
1949

    
1950
    if (loader_exec(filename, argv+optind, target_environ, regs, info) != 0) {
1951
        printf("Error loading %s\n", filename);
1952
        _exit(1);
1953
    }
1954

    
1955
    for (wrk = target_environ; *wrk; wrk++) {
1956
        free(*wrk);
1957
    }
1958

    
1959
    free(target_environ);
1960

    
1961
    if (loglevel) {
1962
        page_dump(logfile);
1963

    
1964
        fprintf(logfile, "start_brk   0x%08lx\n" , info->start_brk);
1965
        fprintf(logfile, "end_code    0x%08lx\n" , info->end_code);
1966
        fprintf(logfile, "start_code  0x%08lx\n" , info->start_code);
1967
        fprintf(logfile, "start_data  0x%08lx\n" , info->start_data);
1968
        fprintf(logfile, "end_data    0x%08lx\n" , info->end_data);
1969
        fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack);
1970
        fprintf(logfile, "brk         0x%08lx\n" , info->brk);
1971
        fprintf(logfile, "entry       0x%08lx\n" , info->entry);
1972
    }
1973

    
1974
    target_set_brk(info->brk);
1975
    syscall_init();
1976
    signal_init();
1977

    
1978
    /* build Task State */
1979
    memset(ts, 0, sizeof(TaskState));
1980
    env->opaque = ts;
1981
    ts->used = 1;
1982
    ts->info = info;
1983
    env->user_mode_only = 1;
1984

    
1985
#if defined(TARGET_I386)
1986
    cpu_x86_set_cpl(env, 3);
1987

    
1988
    env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
1989
    env->hflags |= HF_PE_MASK;
1990
    if (env->cpuid_features & CPUID_SSE) {
1991
        env->cr[4] |= CR4_OSFXSR_MASK;
1992
        env->hflags |= HF_OSFXSR_MASK;
1993
    }
1994

    
1995
    /* flags setup : we activate the IRQs by default as in user mode */
1996
    env->eflags |= IF_MASK;
1997

    
1998
    /* linux register setup */
1999
#if defined(TARGET_X86_64)
2000
    env->regs[R_EAX] = regs->rax;
2001
    env->regs[R_EBX] = regs->rbx;
2002
    env->regs[R_ECX] = regs->rcx;
2003
    env->regs[R_EDX] = regs->rdx;
2004
    env->regs[R_ESI] = regs->rsi;
2005
    env->regs[R_EDI] = regs->rdi;
2006
    env->regs[R_EBP] = regs->rbp;
2007
    env->regs[R_ESP] = regs->rsp;
2008
    env->eip = regs->rip;
2009
#else
2010
    env->regs[R_EAX] = regs->eax;
2011
    env->regs[R_EBX] = regs->ebx;
2012
    env->regs[R_ECX] = regs->ecx;
2013
    env->regs[R_EDX] = regs->edx;
2014
    env->regs[R_ESI] = regs->esi;
2015
    env->regs[R_EDI] = regs->edi;
2016
    env->regs[R_EBP] = regs->ebp;
2017
    env->regs[R_ESP] = regs->esp;
2018
    env->eip = regs->eip;
2019
#endif
2020

    
2021
    /* linux interrupt setup */
2022
    env->idt.base = h2g(idt_table);
2023
    env->idt.limit = sizeof(idt_table) - 1;
2024
    set_idt(0, 0);
2025
    set_idt(1, 0);
2026
    set_idt(2, 0);
2027
    set_idt(3, 3);
2028
    set_idt(4, 3);
2029
    set_idt(5, 3);
2030
    set_idt(6, 0);
2031
    set_idt(7, 0);
2032
    set_idt(8, 0);
2033
    set_idt(9, 0);
2034
    set_idt(10, 0);
2035
    set_idt(11, 0);
2036
    set_idt(12, 0);
2037
    set_idt(13, 0);
2038
    set_idt(14, 0);
2039
    set_idt(15, 0);
2040
    set_idt(16, 0);
2041
    set_idt(17, 0);
2042
    set_idt(18, 0);
2043
    set_idt(19, 0);
2044
    set_idt(0x80, 3);
2045

    
2046
    /* linux segment setup */
2047
    env->gdt.base = h2g(gdt_table);
2048
    env->gdt.limit = sizeof(gdt_table) - 1;
2049
    write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
2050
             DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
2051
             (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
2052
    write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
2053
             DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
2054
             (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
2055
    cpu_x86_load_seg(env, R_CS, __USER_CS);
2056
    cpu_x86_load_seg(env, R_DS, __USER_DS);
2057
    cpu_x86_load_seg(env, R_ES, __USER_DS);
2058
    cpu_x86_load_seg(env, R_SS, __USER_DS);
2059
    cpu_x86_load_seg(env, R_FS, __USER_DS);
2060
    cpu_x86_load_seg(env, R_GS, __USER_DS);
2061

    
2062
    /* This hack makes Wine work... */
2063
    env->segs[R_FS].selector = 0;
2064
#elif defined(TARGET_ARM)
2065
    {
2066
        int i;
2067
        if (cpu_model == NULL)
2068
            cpu_model = "arm926";
2069
        cpu_arm_set_model(env, cpu_model);
2070
        cpsr_write(env, regs->uregs[16], 0xffffffff);
2071
        for(i = 0; i < 16; i++) {
2072
            env->regs[i] = regs->uregs[i];
2073
        }
2074
    }
2075
#elif defined(TARGET_SPARC)
2076
    {
2077
        int i;
2078
        const sparc_def_t *def;
2079
#ifdef TARGET_SPARC64
2080
        if (cpu_model == NULL)
2081
            cpu_model = "TI UltraSparc II";
2082
#else
2083
        if (cpu_model == NULL)
2084
            cpu_model = "Fujitsu MB86904";
2085
#endif
2086
        sparc_find_by_name(cpu_model, &def);
2087
        if (def == NULL) {
2088
            fprintf(stderr, "Unable to find Sparc CPU definition\n");
2089
            exit(1);
2090
        }
2091
        cpu_sparc_register(env, def);
2092
        env->pc = regs->pc;
2093
        env->npc = regs->npc;
2094
        env->y = regs->y;
2095
        for(i = 0; i < 8; i++)
2096
            env->gregs[i] = regs->u_regs[i];
2097
        for(i = 0; i < 8; i++)
2098
            env->regwptr[i] = regs->u_regs[i + 8];
2099
    }
2100
#elif defined(TARGET_PPC)
2101
    {
2102
        ppc_def_t *def;
2103
        int i;
2104

    
2105
        /* Choose and initialise CPU */
2106
        if (cpu_model == NULL)
2107
            cpu_model = "750";
2108
        ppc_find_by_name(cpu_model, &def);
2109
        if (def == NULL) {
2110
            cpu_abort(env,
2111
                      "Unable to find PowerPC CPU definition\n");
2112
        }
2113
        cpu_ppc_register(env, def);
2114

    
2115
        for (i = 0; i < 32; i++) {
2116
            if (i != 12 && i != 6 && i != 13)
2117
                env->msr[i] = (regs->msr >> i) & 1;
2118
        }
2119
#if defined(TARGET_PPC64)
2120
        msr_sf = 1;
2121
#endif
2122
        env->nip = regs->nip;
2123
        for(i = 0; i < 32; i++) {
2124
            env->gpr[i] = regs->gpr[i];
2125
        }
2126
    }
2127
#elif defined(TARGET_M68K)
2128
    {
2129
        if (cpu_model == NULL)
2130
            cpu_model = "any";
2131
        if (cpu_m68k_set_model(env, cpu_model)) {
2132
            cpu_abort(cpu_single_env,
2133
                      "Unable to find m68k CPU definition\n");
2134
        }
2135
        env->pc = regs->pc;
2136
        env->dregs[0] = regs->d0;
2137
        env->dregs[1] = regs->d1;
2138
        env->dregs[2] = regs->d2;
2139
        env->dregs[3] = regs->d3;
2140
        env->dregs[4] = regs->d4;
2141
        env->dregs[5] = regs->d5;
2142
        env->dregs[6] = regs->d6;
2143
        env->dregs[7] = regs->d7;
2144
        env->aregs[0] = regs->a0;
2145
        env->aregs[1] = regs->a1;
2146
        env->aregs[2] = regs->a2;
2147
        env->aregs[3] = regs->a3;
2148
        env->aregs[4] = regs->a4;
2149
        env->aregs[5] = regs->a5;
2150
        env->aregs[6] = regs->a6;
2151
        env->aregs[7] = regs->usp;
2152
        env->sr = regs->sr;
2153
        ts->sim_syscalls = 1;
2154
    }
2155
#elif defined(TARGET_MIPS)
2156
    {
2157
        mips_def_t *def;
2158
        int i;
2159

    
2160
        /* Choose and initialise CPU */
2161
        if (cpu_model == NULL)
2162
            cpu_model = "24Kf";
2163
        mips_find_by_name(cpu_model, &def);
2164
        if (def == NULL)
2165
            cpu_abort(env, "Unable to find MIPS CPU definition\n");
2166
        cpu_mips_register(env, def);
2167

    
2168
        for(i = 0; i < 32; i++) {
2169
            env->gpr[i][env->current_tc] = regs->regs[i];
2170
        }
2171
        env->PC[env->current_tc] = regs->cp0_epc;
2172
    }
2173
#elif defined(TARGET_SH4)
2174
    {
2175
        int i;
2176

    
2177
        for(i = 0; i < 16; i++) {
2178
            env->gregs[i] = regs->regs[i];
2179
        }
2180
        env->pc = regs->pc;
2181
    }
2182
#elif defined(TARGET_ALPHA)
2183
    {
2184
        int i;
2185

    
2186
        for(i = 0; i < 28; i++) {
2187
            env->ir[i] = ((target_ulong *)regs)[i];
2188
        }
2189
        env->ipr[IPR_USP] = regs->usp;
2190
        env->ir[30] = regs->usp;
2191
        env->pc = regs->pc;
2192
        env->unique = regs->unique;
2193
    }
2194
#else
2195
#error unsupported target CPU
2196
#endif
2197

    
2198
#if defined(TARGET_ARM) || defined(TARGET_M68K)
2199
    ts->stack_base = info->start_stack;
2200
    ts->heap_base = info->brk;
2201
    /* This will be filled in on the first SYS_HEAPINFO call.  */
2202
    ts->heap_limit = 0;
2203
#endif
2204

    
2205
    if (gdbstub_port) {
2206
        gdbserver_start (gdbstub_port);
2207
        gdb_handlesig(env, 0);
2208
    }
2209
    cpu_loop(env);
2210
    /* never exits */
2211
    return 0;
2212
}