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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
void cpu_loop(CPUPPCState *env)
716
{
717
    target_siginfo_t info;
718
    int trapnr;
719
    uint32_t ret;
720
    
721
    for(;;) {
722
        trapnr = cpu_ppc_exec(env);
723
        if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
724
            trapnr != EXCP_TRACE) {
725
            if (loglevel > 0) {
726
                cpu_dump_state(env, logfile, fprintf, 0);
727
            }
728
        }
729
        switch(trapnr) {
730
        case EXCP_NONE:
731
            break;
732
        case EXCP_SYSCALL_USER:
733
            /* system call */
734
            /* WARNING:
735
             * PPC ABI uses overflow flag in cr0 to signal an error
736
             * in syscalls.
737
             */
738
#if 0
739
            printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
740
                   env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
741
#endif
742
            env->crf[0] &= ~0x1;
743
            ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
744
                             env->gpr[5], env->gpr[6], env->gpr[7],
745
                             env->gpr[8]);
746
            if (ret > (uint32_t)(-515)) {
747
                env->crf[0] |= 0x1;
748
                ret = -ret;
749
            }
750
            env->gpr[3] = ret;
751
#if 0
752
            printf("syscall returned 0x%08x (%d)\n", ret, ret);
753
#endif
754
            break;
755
        case EXCP_RESET:
756
            /* Should not happen ! */
757
            fprintf(stderr, "RESET asked... Stop emulation\n");
758
            if (loglevel)
759
                fprintf(logfile, "RESET asked... Stop emulation\n");
760
            abort();
761
        case EXCP_MACHINE_CHECK:
762
            fprintf(stderr, "Machine check exeption...  Stop emulation\n");
763
            if (loglevel)
764
                fprintf(logfile, "RESET asked... Stop emulation\n");
765
            info.si_signo = TARGET_SIGBUS;
766
            info.si_errno = 0;
767
            info.si_code = TARGET_BUS_OBJERR;
768
            info._sifields._sigfault._addr = env->nip - 4;
769
            queue_signal(info.si_signo, &info);
770
        case EXCP_DSI:
771
            fprintf(stderr, "Invalid data memory access: 0x" ADDRX "\n",
772
                    env->spr[SPR_DAR]);
773
            if (loglevel) {
774
                fprintf(logfile, "Invalid data memory access: 0x" ADDRX "\n",
775
                        env->spr[SPR_DAR]);
776
            }
777
            switch (env->error_code & 0xFF000000) {
778
            case 0x40000000:
779
                info.si_signo = TARGET_SIGSEGV;
780
                info.si_errno = 0;
781
                info.si_code = TARGET_SEGV_MAPERR;
782
                break;
783
            case 0x04000000:
784
                info.si_signo = TARGET_SIGILL;
785
                info.si_errno = 0;
786
                info.si_code = TARGET_ILL_ILLADR;
787
                break;
788
            case 0x08000000:
789
                info.si_signo = TARGET_SIGSEGV;
790
                info.si_errno = 0;
791
                info.si_code = TARGET_SEGV_ACCERR;
792
                break;
793
            default:
794
                /* Let's send a regular segfault... */
795
                fprintf(stderr, "Invalid segfault errno (%02x)\n",
796
                        env->error_code);
797
                if (loglevel) {
798
                    fprintf(logfile, "Invalid segfault errno (%02x)\n",
799
                            env->error_code);
800
                }
801
                info.si_signo = TARGET_SIGSEGV;
802
                info.si_errno = 0;
803
                info.si_code = TARGET_SEGV_MAPERR;
804
                break;
805
            }
806
            info._sifields._sigfault._addr = env->nip;
807
            queue_signal(info.si_signo, &info);
808
            break;
809
        case EXCP_ISI:
810
            fprintf(stderr, "Invalid instruction fetch\n");
811
            if (loglevel)
812
                fprintf(logfile, "Invalid instruction fetch\n");
813
            switch (env->error_code & 0xFF000000) {
814
            case 0x40000000:
815
                info.si_signo = TARGET_SIGSEGV;
816
            info.si_errno = 0;
817
                info.si_code = TARGET_SEGV_MAPERR;
818
                break;
819
            case 0x10000000:
820
            case 0x08000000:
821
                info.si_signo = TARGET_SIGSEGV;
822
                info.si_errno = 0;
823
                info.si_code = TARGET_SEGV_ACCERR;
824
                break;
825
            default:
826
                /* Let's send a regular segfault... */
827
                fprintf(stderr, "Invalid segfault errno (%02x)\n",
828
                        env->error_code);
829
                if (loglevel) {
830
                    fprintf(logfile, "Invalid segfault errno (%02x)\n",
831
                            env->error_code);
832
                }
833
                info.si_signo = TARGET_SIGSEGV;
834
                info.si_errno = 0;
835
                info.si_code = TARGET_SEGV_MAPERR;
836
                break;
837
            }
838
            info._sifields._sigfault._addr = env->nip - 4;
839
            queue_signal(info.si_signo, &info);
840
            break;
841
        case EXCP_EXTERNAL:
842
            /* Should not happen ! */
843
            fprintf(stderr, "External interruption... Stop emulation\n");
844
            if (loglevel)
845
                fprintf(logfile, "External interruption... Stop emulation\n");
846
            abort();
847
        case EXCP_ALIGN:
848
            fprintf(stderr, "Invalid unaligned memory access\n");
849
            if (loglevel)
850
                fprintf(logfile, "Invalid unaligned memory access\n");
851
            info.si_signo = TARGET_SIGBUS;
852
            info.si_errno = 0;
853
            info.si_code = TARGET_BUS_ADRALN;
854
            info._sifields._sigfault._addr = env->nip - 4;
855
            queue_signal(info.si_signo, &info);
856
            break;
857
        case EXCP_PROGRAM:
858
            switch (env->error_code & ~0xF) {
859
            case EXCP_FP:
860
            fprintf(stderr, "Program exception\n");
861
                if (loglevel)
862
                    fprintf(logfile, "Program exception\n");
863
                /* Set FX */
864
                env->fpscr[7] |= 0x8;
865
                /* Finally, update FEX */
866
                if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
867
                    ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
868
                    env->fpscr[7] |= 0x4;
869
                info.si_signo = TARGET_SIGFPE;
870
                info.si_errno = 0;
871
                switch (env->error_code & 0xF) {
872
                case EXCP_FP_OX:
873
                    info.si_code = TARGET_FPE_FLTOVF;
874
                    break;
875
                case EXCP_FP_UX:
876
                    info.si_code = TARGET_FPE_FLTUND;
877
                    break;
878
                case EXCP_FP_ZX:
879
                case EXCP_FP_VXZDZ:
880
                    info.si_code = TARGET_FPE_FLTDIV;
881
                    break;
882
                case EXCP_FP_XX:
883
                    info.si_code = TARGET_FPE_FLTRES;
884
                    break;
885
                case EXCP_FP_VXSOFT:
886
                    info.si_code = TARGET_FPE_FLTINV;
887
                    break;
888
                case EXCP_FP_VXNAN:
889
                case EXCP_FP_VXISI:
890
                case EXCP_FP_VXIDI:
891
                case EXCP_FP_VXIMZ:
892
                case EXCP_FP_VXVC:
893
                case EXCP_FP_VXSQRT:
894
                case EXCP_FP_VXCVI:
895
                    info.si_code = TARGET_FPE_FLTSUB;
896
                    break;
897
                default:
898
                    fprintf(stderr, "Unknown floating point exception "
899
                            "(%02x)\n", env->error_code);
900
                    if (loglevel) {
901
                        fprintf(logfile, "Unknown floating point exception "
902
                                "(%02x)\n", env->error_code & 0xF);
903
                    }
904
                }
905
            break;
906
        case EXCP_INVAL:
907
                fprintf(stderr, "Invalid instruction\n");
908
                if (loglevel)
909
                    fprintf(logfile, "Invalid instruction\n");
910
                info.si_signo = TARGET_SIGILL;
911
                info.si_errno = 0;
912
                switch (env->error_code & 0xF) {
913
                case EXCP_INVAL_INVAL:
914
                    info.si_code = TARGET_ILL_ILLOPC;
915
                    break;
916
                case EXCP_INVAL_LSWX:
917
            info.si_code = TARGET_ILL_ILLOPN;
918
                    break;
919
                case EXCP_INVAL_SPR:
920
                    info.si_code = TARGET_ILL_PRVREG;
921
                    break;
922
                case EXCP_INVAL_FP:
923
                    info.si_code = TARGET_ILL_COPROC;
924
                    break;
925
                default:
926
                    fprintf(stderr, "Unknown invalid operation (%02x)\n",
927
                            env->error_code & 0xF);
928
                    if (loglevel) {
929
                        fprintf(logfile, "Unknown invalid operation (%02x)\n",
930
                                env->error_code & 0xF);
931
                    }
932
                    info.si_code = TARGET_ILL_ILLADR;
933
                    break;
934
                }
935
                break;
936
            case EXCP_PRIV:
937
                fprintf(stderr, "Privilege violation\n");
938
                if (loglevel)
939
                    fprintf(logfile, "Privilege violation\n");
940
                info.si_signo = TARGET_SIGILL;
941
                info.si_errno = 0;
942
                switch (env->error_code & 0xF) {
943
                case EXCP_PRIV_OPC:
944
                    info.si_code = TARGET_ILL_PRVOPC;
945
                    break;
946
                case EXCP_PRIV_REG:
947
                    info.si_code = TARGET_ILL_PRVREG;
948
                break;
949
                default:
950
                    fprintf(stderr, "Unknown privilege violation (%02x)\n",
951
                            env->error_code & 0xF);
952
                    info.si_code = TARGET_ILL_PRVOPC;
953
                    break;
954
                }
955
                break;
956
            case EXCP_TRAP:
957
                fprintf(stderr, "Tried to call a TRAP\n");
958
                if (loglevel)
959
                    fprintf(logfile, "Tried to call a TRAP\n");
960
                abort();
961
            default:
962
                /* Should not happen ! */
963
                fprintf(stderr, "Unknown program exception (%02x)\n",
964
                        env->error_code);
965
                if (loglevel) {
966
                    fprintf(logfile, "Unknwon program exception (%02x)\n",
967
                            env->error_code);
968
                }
969
                abort();
970
            }
971
            info._sifields._sigfault._addr = env->nip - 4;
972
            queue_signal(info.si_signo, &info);
973
            break;
974
        case EXCP_NO_FP:
975
            fprintf(stderr, "No floating point allowed\n");
976
            if (loglevel)
977
                fprintf(logfile, "No floating point allowed\n");
978
            info.si_signo = TARGET_SIGILL;
979
            info.si_errno = 0;
980
            info.si_code = TARGET_ILL_COPROC;
981
            info._sifields._sigfault._addr = env->nip - 4;
982
            queue_signal(info.si_signo, &info);
983
            break;
984
        case EXCP_DECR:
985
            /* Should not happen ! */
986
            fprintf(stderr, "Decrementer exception\n");
987
            if (loglevel)
988
                fprintf(logfile, "Decrementer exception\n");
989
            abort();
990
        case EXCP_TRACE:
991
            /* Do nothing: we use this to trace execution */
992
            break;
993
        case EXCP_FP_ASSIST:
994
            /* Should not happen ! */
995
            fprintf(stderr, "Floating point assist exception\n");
996
            if (loglevel)
997
                fprintf(logfile, "Floating point assist exception\n");
998
            abort();
999
        case EXCP_MTMSR:
1000
            /* We reloaded the msr, just go on */
1001
            if (msr_pr == 0) {
1002
                fprintf(stderr, "Tried to go into supervisor mode !\n");
1003
                if (loglevel)
1004
                    fprintf(logfile, "Tried to go into supervisor mode !\n");
1005
                abort();
1006
        }
1007
            break;
1008
        case EXCP_BRANCH:
1009
            /* We stopped because of a jump... */
1010
            break;
1011
        case EXCP_INTERRUPT:
1012
            /* Don't know why this should ever happen... */
1013
            break;
1014
        case EXCP_DEBUG:
1015
            {
1016
                int sig;
1017

    
1018
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1019
                if (sig)
1020
                  {
1021
                    info.si_signo = sig;
1022
                    info.si_errno = 0;
1023
                    info.si_code = TARGET_TRAP_BRKPT;
1024
                    queue_signal(info.si_signo, &info);
1025
                  }
1026
            }
1027
            break;
1028
        default:
1029
            fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", 
1030
                    trapnr);
1031
            if (loglevel) {
1032
                fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
1033
                        "0x%02x - aborting\n", trapnr, env->error_code);
1034
            }
1035
            abort();
1036
        }
1037
        process_pending_signals(env);
1038
    }
1039
}
1040
#endif
1041

    
1042
#ifdef TARGET_MIPS
1043

    
1044
#define MIPS_SYS(name, args) args,
1045

    
1046
static const uint8_t mips_syscall_args[] = {
1047
        MIPS_SYS(sys_syscall        , 0)        /* 4000 */
1048
        MIPS_SYS(sys_exit        , 1)
1049
        MIPS_SYS(sys_fork        , 0)
1050
        MIPS_SYS(sys_read        , 3)
1051
        MIPS_SYS(sys_write        , 3)
1052
        MIPS_SYS(sys_open        , 3)        /* 4005 */
1053
        MIPS_SYS(sys_close        , 1)
1054
        MIPS_SYS(sys_waitpid        , 3)
1055
        MIPS_SYS(sys_creat        , 2)
1056
        MIPS_SYS(sys_link        , 2)
1057
        MIPS_SYS(sys_unlink        , 1)        /* 4010 */
1058
        MIPS_SYS(sys_execve        , 0)
1059
        MIPS_SYS(sys_chdir        , 1)
1060
        MIPS_SYS(sys_time        , 1)
1061
        MIPS_SYS(sys_mknod        , 3)
1062
        MIPS_SYS(sys_chmod        , 2)        /* 4015 */
1063
        MIPS_SYS(sys_lchown        , 3)
1064
        MIPS_SYS(sys_ni_syscall        , 0)
1065
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_stat */
1066
        MIPS_SYS(sys_lseek        , 3)
1067
        MIPS_SYS(sys_getpid        , 0)        /* 4020 */
1068
        MIPS_SYS(sys_mount        , 5)
1069
        MIPS_SYS(sys_oldumount        , 1)
1070
        MIPS_SYS(sys_setuid        , 1)
1071
        MIPS_SYS(sys_getuid        , 0)
1072
        MIPS_SYS(sys_stime        , 1)        /* 4025 */
1073
        MIPS_SYS(sys_ptrace        , 4)
1074
        MIPS_SYS(sys_alarm        , 1)
1075
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_fstat */
1076
        MIPS_SYS(sys_pause        , 0)
1077
        MIPS_SYS(sys_utime        , 2)        /* 4030 */
1078
        MIPS_SYS(sys_ni_syscall        , 0)
1079
        MIPS_SYS(sys_ni_syscall        , 0)
1080
        MIPS_SYS(sys_access        , 2)
1081
        MIPS_SYS(sys_nice        , 1)
1082
        MIPS_SYS(sys_ni_syscall        , 0)        /* 4035 */
1083
        MIPS_SYS(sys_sync        , 0)
1084
        MIPS_SYS(sys_kill        , 2)
1085
        MIPS_SYS(sys_rename        , 2)
1086
        MIPS_SYS(sys_mkdir        , 2)
1087
        MIPS_SYS(sys_rmdir        , 1)        /* 4040 */
1088
        MIPS_SYS(sys_dup                , 1)
1089
        MIPS_SYS(sys_pipe        , 0)
1090
        MIPS_SYS(sys_times        , 1)
1091
        MIPS_SYS(sys_ni_syscall        , 0)
1092
        MIPS_SYS(sys_brk                , 1)        /* 4045 */
1093
        MIPS_SYS(sys_setgid        , 1)
1094
        MIPS_SYS(sys_getgid        , 0)
1095
        MIPS_SYS(sys_ni_syscall        , 0)        /* was signal(2) */
1096
        MIPS_SYS(sys_geteuid        , 0)
1097
        MIPS_SYS(sys_getegid        , 0)        /* 4050 */
1098
        MIPS_SYS(sys_acct        , 0)
1099
        MIPS_SYS(sys_umount        , 2)
1100
        MIPS_SYS(sys_ni_syscall        , 0)
1101
        MIPS_SYS(sys_ioctl        , 3)
1102
        MIPS_SYS(sys_fcntl        , 3)        /* 4055 */
1103
        MIPS_SYS(sys_ni_syscall        , 2)
1104
        MIPS_SYS(sys_setpgid        , 2)
1105
        MIPS_SYS(sys_ni_syscall        , 0)
1106
        MIPS_SYS(sys_olduname        , 1)
1107
        MIPS_SYS(sys_umask        , 1)        /* 4060 */
1108
        MIPS_SYS(sys_chroot        , 1)
1109
        MIPS_SYS(sys_ustat        , 2)
1110
        MIPS_SYS(sys_dup2        , 2)
1111
        MIPS_SYS(sys_getppid        , 0)
1112
        MIPS_SYS(sys_getpgrp        , 0)        /* 4065 */
1113
        MIPS_SYS(sys_setsid        , 0)
1114
        MIPS_SYS(sys_sigaction        , 3)
1115
        MIPS_SYS(sys_sgetmask        , 0)
1116
        MIPS_SYS(sys_ssetmask        , 1)
1117
        MIPS_SYS(sys_setreuid        , 2)        /* 4070 */
1118
        MIPS_SYS(sys_setregid        , 2)
1119
        MIPS_SYS(sys_sigsuspend        , 0)
1120
        MIPS_SYS(sys_sigpending        , 1)
1121
        MIPS_SYS(sys_sethostname        , 2)
1122
        MIPS_SYS(sys_setrlimit        , 2)        /* 4075 */
1123
        MIPS_SYS(sys_getrlimit        , 2)
1124
        MIPS_SYS(sys_getrusage        , 2)
1125
        MIPS_SYS(sys_gettimeofday, 2)
1126
        MIPS_SYS(sys_settimeofday, 2)
1127
        MIPS_SYS(sys_getgroups        , 2)        /* 4080 */
1128
        MIPS_SYS(sys_setgroups        , 2)
1129
        MIPS_SYS(sys_ni_syscall        , 0)        /* old_select */
1130
        MIPS_SYS(sys_symlink        , 2)
1131
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_lstat */
1132
        MIPS_SYS(sys_readlink        , 3)        /* 4085 */
1133
        MIPS_SYS(sys_uselib        , 1)
1134
        MIPS_SYS(sys_swapon        , 2)
1135
        MIPS_SYS(sys_reboot        , 3)
1136
        MIPS_SYS(old_readdir        , 3)
1137
        MIPS_SYS(old_mmap        , 6)        /* 4090 */
1138
        MIPS_SYS(sys_munmap        , 2)
1139
        MIPS_SYS(sys_truncate        , 2)
1140
        MIPS_SYS(sys_ftruncate        , 2)
1141
        MIPS_SYS(sys_fchmod        , 2)
1142
        MIPS_SYS(sys_fchown        , 3)        /* 4095 */
1143
        MIPS_SYS(sys_getpriority        , 2)
1144
        MIPS_SYS(sys_setpriority        , 3)
1145
        MIPS_SYS(sys_ni_syscall        , 0)
1146
        MIPS_SYS(sys_statfs        , 2)
1147
        MIPS_SYS(sys_fstatfs        , 2)        /* 4100 */
1148
        MIPS_SYS(sys_ni_syscall        , 0)        /* was ioperm(2) */
1149
        MIPS_SYS(sys_socketcall        , 2)
1150
        MIPS_SYS(sys_syslog        , 3)
1151
        MIPS_SYS(sys_setitimer        , 3)
1152
        MIPS_SYS(sys_getitimer        , 2)        /* 4105 */
1153
        MIPS_SYS(sys_newstat        , 2)
1154
        MIPS_SYS(sys_newlstat        , 2)
1155
        MIPS_SYS(sys_newfstat        , 2)
1156
        MIPS_SYS(sys_uname        , 1)
1157
        MIPS_SYS(sys_ni_syscall        , 0)        /* 4110 was iopl(2) */
1158
        MIPS_SYS(sys_vhangup        , 0)
1159
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_idle() */
1160
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_vm86 */
1161
        MIPS_SYS(sys_wait4        , 4)
1162
        MIPS_SYS(sys_swapoff        , 1)        /* 4115 */
1163
        MIPS_SYS(sys_sysinfo        , 1)
1164
        MIPS_SYS(sys_ipc                , 6)
1165
        MIPS_SYS(sys_fsync        , 1)
1166
        MIPS_SYS(sys_sigreturn        , 0)
1167
        MIPS_SYS(sys_clone        , 0)        /* 4120 */
1168
        MIPS_SYS(sys_setdomainname, 2)
1169
        MIPS_SYS(sys_newuname        , 1)
1170
        MIPS_SYS(sys_ni_syscall        , 0)        /* sys_modify_ldt */
1171
        MIPS_SYS(sys_adjtimex        , 1)
1172
        MIPS_SYS(sys_mprotect        , 3)        /* 4125 */
1173
        MIPS_SYS(sys_sigprocmask        , 3)
1174
        MIPS_SYS(sys_ni_syscall        , 0)        /* was create_module */
1175
        MIPS_SYS(sys_init_module        , 5)
1176
        MIPS_SYS(sys_delete_module, 1)
1177
        MIPS_SYS(sys_ni_syscall        , 0)        /* 4130        was get_kernel_syms */
1178
        MIPS_SYS(sys_quotactl        , 0)
1179
        MIPS_SYS(sys_getpgid        , 1)
1180
        MIPS_SYS(sys_fchdir        , 1)
1181
        MIPS_SYS(sys_bdflush        , 2)
1182
        MIPS_SYS(sys_sysfs        , 3)        /* 4135 */
1183
        MIPS_SYS(sys_personality        , 1)
1184
        MIPS_SYS(sys_ni_syscall        , 0)        /* for afs_syscall */
1185
        MIPS_SYS(sys_setfsuid        , 1)
1186
        MIPS_SYS(sys_setfsgid        , 1)
1187
        MIPS_SYS(sys_llseek        , 5)        /* 4140 */
1188
        MIPS_SYS(sys_getdents        , 3)
1189
        MIPS_SYS(sys_select        , 5)
1190
        MIPS_SYS(sys_flock        , 2)
1191
        MIPS_SYS(sys_msync        , 3)
1192
        MIPS_SYS(sys_readv        , 3)        /* 4145 */
1193
        MIPS_SYS(sys_writev        , 3)
1194
        MIPS_SYS(sys_cacheflush        , 3)
1195
        MIPS_SYS(sys_cachectl        , 3)
1196
        MIPS_SYS(sys_sysmips        , 4)
1197
        MIPS_SYS(sys_ni_syscall        , 0)        /* 4150 */
1198
        MIPS_SYS(sys_getsid        , 1)
1199
        MIPS_SYS(sys_fdatasync        , 0)
1200
        MIPS_SYS(sys_sysctl        , 1)
1201
        MIPS_SYS(sys_mlock        , 2)
1202
        MIPS_SYS(sys_munlock        , 2)        /* 4155 */
1203
        MIPS_SYS(sys_mlockall        , 1)
1204
        MIPS_SYS(sys_munlockall        , 0)
1205
        MIPS_SYS(sys_sched_setparam, 2)
1206
        MIPS_SYS(sys_sched_getparam, 2)
1207
        MIPS_SYS(sys_sched_setscheduler, 3)        /* 4160 */
1208
        MIPS_SYS(sys_sched_getscheduler, 1)
1209
        MIPS_SYS(sys_sched_yield        , 0)
1210
        MIPS_SYS(sys_sched_get_priority_max, 1)
1211
        MIPS_SYS(sys_sched_get_priority_min, 1)
1212
        MIPS_SYS(sys_sched_rr_get_interval, 2)        /* 4165 */
1213
        MIPS_SYS(sys_nanosleep,        2)
1214
        MIPS_SYS(sys_mremap        , 4)
1215
        MIPS_SYS(sys_accept        , 3)
1216
        MIPS_SYS(sys_bind        , 3)
1217
        MIPS_SYS(sys_connect        , 3)        /* 4170 */
1218
        MIPS_SYS(sys_getpeername        , 3)
1219
        MIPS_SYS(sys_getsockname        , 3)
1220
        MIPS_SYS(sys_getsockopt        , 5)
1221
        MIPS_SYS(sys_listen        , 2)
1222
        MIPS_SYS(sys_recv        , 4)        /* 4175 */
1223
        MIPS_SYS(sys_recvfrom        , 6)
1224
        MIPS_SYS(sys_recvmsg        , 3)
1225
        MIPS_SYS(sys_send        , 4)
1226
        MIPS_SYS(sys_sendmsg        , 3)
1227
        MIPS_SYS(sys_sendto        , 6)        /* 4180 */
1228
        MIPS_SYS(sys_setsockopt        , 5)
1229
        MIPS_SYS(sys_shutdown        , 2)
1230
        MIPS_SYS(sys_socket        , 3)
1231
        MIPS_SYS(sys_socketpair        , 4)
1232
        MIPS_SYS(sys_setresuid        , 3)        /* 4185 */
1233
        MIPS_SYS(sys_getresuid        , 3)
1234
        MIPS_SYS(sys_ni_syscall        , 0)        /* was sys_query_module */
1235
        MIPS_SYS(sys_poll        , 3)
1236
        MIPS_SYS(sys_nfsservctl        , 3)
1237
        MIPS_SYS(sys_setresgid        , 3)        /* 4190 */
1238
        MIPS_SYS(sys_getresgid        , 3)
1239
        MIPS_SYS(sys_prctl        , 5)
1240
        MIPS_SYS(sys_rt_sigreturn, 0)
1241
        MIPS_SYS(sys_rt_sigaction, 4)
1242
        MIPS_SYS(sys_rt_sigprocmask, 4)        /* 4195 */
1243
        MIPS_SYS(sys_rt_sigpending, 2)
1244
        MIPS_SYS(sys_rt_sigtimedwait, 4)
1245
        MIPS_SYS(sys_rt_sigqueueinfo, 3)
1246
        MIPS_SYS(sys_rt_sigsuspend, 0)
1247
        MIPS_SYS(sys_pread64        , 6)        /* 4200 */
1248
        MIPS_SYS(sys_pwrite64        , 6)
1249
        MIPS_SYS(sys_chown        , 3)
1250
        MIPS_SYS(sys_getcwd        , 2)
1251
        MIPS_SYS(sys_capget        , 2)
1252
        MIPS_SYS(sys_capset        , 2)        /* 4205 */
1253
        MIPS_SYS(sys_sigaltstack        , 0)
1254
        MIPS_SYS(sys_sendfile        , 4)
1255
        MIPS_SYS(sys_ni_syscall        , 0)
1256
        MIPS_SYS(sys_ni_syscall        , 0)
1257
        MIPS_SYS(sys_mmap2        , 6)        /* 4210 */
1258
        MIPS_SYS(sys_truncate64        , 4)
1259
        MIPS_SYS(sys_ftruncate64        , 4)
1260
        MIPS_SYS(sys_stat64        , 2)
1261
        MIPS_SYS(sys_lstat64        , 2)
1262
        MIPS_SYS(sys_fstat64        , 2)        /* 4215 */
1263
        MIPS_SYS(sys_pivot_root        , 2)
1264
        MIPS_SYS(sys_mincore        , 3)
1265
        MIPS_SYS(sys_madvise        , 3)
1266
        MIPS_SYS(sys_getdents64        , 3)
1267
        MIPS_SYS(sys_fcntl64        , 3)        /* 4220 */
1268
        MIPS_SYS(sys_ni_syscall        , 0)
1269
        MIPS_SYS(sys_gettid        , 0)
1270
        MIPS_SYS(sys_readahead        , 5)
1271
        MIPS_SYS(sys_setxattr        , 5)
1272
        MIPS_SYS(sys_lsetxattr        , 5)        /* 4225 */
1273
        MIPS_SYS(sys_fsetxattr        , 5)
1274
        MIPS_SYS(sys_getxattr        , 4)
1275
        MIPS_SYS(sys_lgetxattr        , 4)
1276
        MIPS_SYS(sys_fgetxattr        , 4)
1277
        MIPS_SYS(sys_listxattr        , 3)        /* 4230 */
1278
        MIPS_SYS(sys_llistxattr        , 3)
1279
        MIPS_SYS(sys_flistxattr        , 3)
1280
        MIPS_SYS(sys_removexattr        , 2)
1281
        MIPS_SYS(sys_lremovexattr, 2)
1282
        MIPS_SYS(sys_fremovexattr, 2)        /* 4235 */
1283
        MIPS_SYS(sys_tkill        , 2)
1284
        MIPS_SYS(sys_sendfile64        , 5)
1285
        MIPS_SYS(sys_futex        , 2)
1286
        MIPS_SYS(sys_sched_setaffinity, 3)
1287
        MIPS_SYS(sys_sched_getaffinity, 3)        /* 4240 */
1288
        MIPS_SYS(sys_io_setup        , 2)
1289
        MIPS_SYS(sys_io_destroy        , 1)
1290
        MIPS_SYS(sys_io_getevents, 5)
1291
        MIPS_SYS(sys_io_submit        , 3)
1292
        MIPS_SYS(sys_io_cancel        , 3)        /* 4245 */
1293
        MIPS_SYS(sys_exit_group        , 1)
1294
        MIPS_SYS(sys_lookup_dcookie, 3)
1295
        MIPS_SYS(sys_epoll_create, 1)
1296
        MIPS_SYS(sys_epoll_ctl        , 4)
1297
        MIPS_SYS(sys_epoll_wait        , 3)        /* 4250 */
1298
        MIPS_SYS(sys_remap_file_pages, 5)
1299
        MIPS_SYS(sys_set_tid_address, 1)
1300
        MIPS_SYS(sys_restart_syscall, 0)
1301
        MIPS_SYS(sys_fadvise64_64, 7)
1302
        MIPS_SYS(sys_statfs64        , 3)        /* 4255 */
1303
        MIPS_SYS(sys_fstatfs64        , 2)
1304
        MIPS_SYS(sys_timer_create, 3)
1305
        MIPS_SYS(sys_timer_settime, 4)
1306
        MIPS_SYS(sys_timer_gettime, 2)
1307
        MIPS_SYS(sys_timer_getoverrun, 1)        /* 4260 */
1308
        MIPS_SYS(sys_timer_delete, 1)
1309
        MIPS_SYS(sys_clock_settime, 2)
1310
        MIPS_SYS(sys_clock_gettime, 2)
1311
        MIPS_SYS(sys_clock_getres, 2)
1312
        MIPS_SYS(sys_clock_nanosleep, 4)        /* 4265 */
1313
        MIPS_SYS(sys_tgkill        , 3)
1314
        MIPS_SYS(sys_utimes        , 2)
1315
        MIPS_SYS(sys_mbind        , 4)
1316
        MIPS_SYS(sys_ni_syscall        , 0)        /* sys_get_mempolicy */
1317
        MIPS_SYS(sys_ni_syscall        , 0)        /* 4270 sys_set_mempolicy */
1318
        MIPS_SYS(sys_mq_open        , 4)
1319
        MIPS_SYS(sys_mq_unlink        , 1)
1320
        MIPS_SYS(sys_mq_timedsend, 5)
1321
        MIPS_SYS(sys_mq_timedreceive, 5)
1322
        MIPS_SYS(sys_mq_notify        , 2)        /* 4275 */
1323
        MIPS_SYS(sys_mq_getsetattr, 3)
1324
        MIPS_SYS(sys_ni_syscall        , 0)        /* sys_vserver */
1325
        MIPS_SYS(sys_waitid        , 4)
1326
        MIPS_SYS(sys_ni_syscall        , 0)        /* available, was setaltroot */
1327
        MIPS_SYS(sys_add_key        , 5)
1328
        MIPS_SYS(sys_request_key, 4)
1329
        MIPS_SYS(sys_keyctl        , 5)
1330
        MIPS_SYS(sys_set_thread_area, 1)
1331
        MIPS_SYS(sys_inotify_init, 0)
1332
        MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
1333
        MIPS_SYS(sys_inotify_rm_watch, 2)
1334
        MIPS_SYS(sys_migrate_pages, 4)
1335
        MIPS_SYS(sys_openat, 4)
1336
        MIPS_SYS(sys_mkdirat, 3)
1337
        MIPS_SYS(sys_mknodat, 4)        /* 4290 */
1338
        MIPS_SYS(sys_fchownat, 5)
1339
        MIPS_SYS(sys_futimesat, 3)
1340
        MIPS_SYS(sys_fstatat64, 4)
1341
        MIPS_SYS(sys_unlinkat, 3)
1342
        MIPS_SYS(sys_renameat, 4)        /* 4295 */
1343
        MIPS_SYS(sys_linkat, 5)
1344
        MIPS_SYS(sys_symlinkat, 3)
1345
        MIPS_SYS(sys_readlinkat, 4)
1346
        MIPS_SYS(sys_fchmodat, 3)
1347
        MIPS_SYS(sys_faccessat, 3)        /* 4300 */
1348
        MIPS_SYS(sys_pselect6, 6)
1349
        MIPS_SYS(sys_ppoll, 5)
1350
        MIPS_SYS(sys_unshare, 1)
1351
        MIPS_SYS(sys_splice, 4)
1352
        MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
1353
        MIPS_SYS(sys_tee, 4)
1354
        MIPS_SYS(sys_vmsplice, 4)
1355
        MIPS_SYS(sys_move_pages, 6)
1356
        MIPS_SYS(sys_set_robust_list, 2)
1357
        MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
1358
        MIPS_SYS(sys_kexec_load, 4)
1359
        MIPS_SYS(sys_getcpu, 3)
1360
        MIPS_SYS(sys_epoll_pwait, 6)
1361
        MIPS_SYS(sys_ioprio_set, 3)
1362
        MIPS_SYS(sys_ioprio_get, 2)
1363
};
1364

    
1365
#undef MIPS_SYS
1366

    
1367
void cpu_loop(CPUMIPSState *env)
1368
{
1369
    target_siginfo_t info;
1370
    int trapnr, ret;
1371
    unsigned int syscall_num;
1372

    
1373
    for(;;) {
1374
        trapnr = cpu_mips_exec(env);
1375
        switch(trapnr) {
1376
        case EXCP_SYSCALL:
1377
            syscall_num = env->gpr[2][env->current_tc] - 4000;
1378
            env->PC[env->current_tc] += 4;
1379
            if (syscall_num >= sizeof(mips_syscall_args)) {
1380
                ret = -ENOSYS;
1381
            } else {
1382
                int nb_args;
1383
                target_ulong sp_reg;
1384
                target_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
1385

    
1386
                nb_args = mips_syscall_args[syscall_num];
1387
                sp_reg = env->gpr[29][env->current_tc];
1388
                switch (nb_args) {
1389
                /* these arguments are taken from the stack */
1390
                case 8: arg8 = tgetl(sp_reg + 28);
1391
                case 7: arg7 = tgetl(sp_reg + 24);
1392
                case 6: arg6 = tgetl(sp_reg + 20);
1393
                case 5: arg5 = tgetl(sp_reg + 16);
1394
                default:
1395
                    break;
1396
                }
1397
                ret = do_syscall(env, env->gpr[2][env->current_tc],
1398
                                 env->gpr[4][env->current_tc],
1399
                                 env->gpr[5][env->current_tc],
1400
                                 env->gpr[6][env->current_tc],
1401
                                 env->gpr[7][env->current_tc],
1402
                                 arg5, arg6/*, arg7, arg8*/);
1403
            }
1404
            if ((unsigned int)ret >= (unsigned int)(-1133)) {
1405
                env->gpr[7][env->current_tc] = 1; /* error flag */
1406
                ret = -ret;
1407
            } else {
1408
                env->gpr[7][env->current_tc] = 0; /* error flag */
1409
            }
1410
            env->gpr[2][env->current_tc] = ret;
1411
            break;
1412
        case EXCP_TLBL:
1413
        case EXCP_TLBS:
1414
        case EXCP_CpU:
1415
        case EXCP_RI:
1416
            info.si_signo = TARGET_SIGILL;
1417
            info.si_errno = 0;
1418
            info.si_code = 0;
1419
            queue_signal(info.si_signo, &info);
1420
            break;
1421
        case EXCP_INTERRUPT:
1422
            /* just indicate that signals should be handled asap */
1423
            break;
1424
        case EXCP_DEBUG:
1425
            {
1426
                int sig;
1427

    
1428
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1429
                if (sig)
1430
                  {
1431
                    info.si_signo = sig;
1432
                    info.si_errno = 0;
1433
                    info.si_code = TARGET_TRAP_BRKPT;
1434
                    queue_signal(info.si_signo, &info);
1435
                  }
1436
            }
1437
            break;
1438
        default:
1439
            //        error:
1440
            fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", 
1441
                    trapnr);
1442
            cpu_dump_state(env, stderr, fprintf, 0);
1443
            abort();
1444
        }
1445
        process_pending_signals(env);
1446
    }
1447
}
1448
#endif
1449

    
1450
#ifdef TARGET_SH4
1451
void cpu_loop (CPUState *env)
1452
{
1453
    int trapnr, ret;
1454
    target_siginfo_t info;
1455
    
1456
    while (1) {
1457
        trapnr = cpu_sh4_exec (env);
1458
        
1459
        switch (trapnr) {
1460
        case 0x160:
1461
            ret = do_syscall(env, 
1462
                             env->gregs[3], 
1463
                             env->gregs[4], 
1464
                             env->gregs[5], 
1465
                             env->gregs[6], 
1466
                             env->gregs[7], 
1467
                             env->gregs[0], 
1468
                             0);
1469
            env->gregs[0] = ret;
1470
            env->pc += 2;
1471
            break;
1472
        case EXCP_DEBUG:
1473
            {
1474
                int sig;
1475

    
1476
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1477
                if (sig)
1478
                  {
1479
                    info.si_signo = sig;
1480
                    info.si_errno = 0;
1481
                    info.si_code = TARGET_TRAP_BRKPT;
1482
                    queue_signal(info.si_signo, &info);
1483
                  }
1484
            }
1485
            break;
1486
        default:
1487
            printf ("Unhandled trap: 0x%x\n", trapnr);
1488
            cpu_dump_state(env, stderr, fprintf, 0);
1489
            exit (1);
1490
        }
1491
        process_pending_signals (env);
1492
    }
1493
}
1494
#endif
1495

    
1496
#ifdef TARGET_M68K
1497

    
1498
void cpu_loop(CPUM68KState *env)
1499
{
1500
    int trapnr;
1501
    unsigned int n;
1502
    target_siginfo_t info;
1503
    TaskState *ts = env->opaque;
1504
    
1505
    for(;;) {
1506
        trapnr = cpu_m68k_exec(env);
1507
        switch(trapnr) {
1508
        case EXCP_ILLEGAL:
1509
            {
1510
                if (ts->sim_syscalls) {
1511
                    uint16_t nr;
1512
                    nr = lduw(env->pc + 2);
1513
                    env->pc += 4;
1514
                    do_m68k_simcall(env, nr);
1515
                } else {
1516
                    goto do_sigill;
1517
                }
1518
            }
1519
            break;
1520
        case EXCP_HALT_INSN:
1521
            /* Semihosing syscall.  */
1522
            env->pc += 4;
1523
            do_m68k_semihosting(env, env->dregs[0]);
1524
            break;
1525
        case EXCP_LINEA:
1526
        case EXCP_LINEF:
1527
        case EXCP_UNSUPPORTED:
1528
        do_sigill:
1529
            info.si_signo = SIGILL;
1530
            info.si_errno = 0;
1531
            info.si_code = TARGET_ILL_ILLOPN;
1532
            info._sifields._sigfault._addr = env->pc;
1533
            queue_signal(info.si_signo, &info);
1534
            break;
1535
        case EXCP_TRAP0:
1536
            {
1537
                ts->sim_syscalls = 0;
1538
                n = env->dregs[0];
1539
                env->pc += 2;
1540
                env->dregs[0] = do_syscall(env, 
1541
                                          n, 
1542
                                          env->dregs[1],
1543
                                          env->dregs[2],
1544
                                          env->dregs[3],
1545
                                          env->dregs[4],
1546
                                          env->dregs[5],
1547
                                          env->dregs[6]);
1548
            }
1549
            break;
1550
        case EXCP_INTERRUPT:
1551
            /* just indicate that signals should be handled asap */
1552
            break;
1553
        case EXCP_ACCESS:
1554
            {
1555
                info.si_signo = SIGSEGV;
1556
                info.si_errno = 0;
1557
                /* XXX: check env->error_code */
1558
                info.si_code = TARGET_SEGV_MAPERR;
1559
                info._sifields._sigfault._addr = env->mmu.ar;
1560
                queue_signal(info.si_signo, &info);
1561
            }
1562
            break;
1563
        case EXCP_DEBUG:
1564
            {
1565
                int sig;
1566

    
1567
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1568
                if (sig)
1569
                  {
1570
                    info.si_signo = sig;
1571
                    info.si_errno = 0;
1572
                    info.si_code = TARGET_TRAP_BRKPT;
1573
                    queue_signal(info.si_signo, &info);
1574
                  }
1575
            }
1576
            break;
1577
        default:
1578
            fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", 
1579
                    trapnr);
1580
            cpu_dump_state(env, stderr, fprintf, 0);
1581
            abort();
1582
        }
1583
        process_pending_signals(env);
1584
    }
1585
}
1586
#endif /* TARGET_M68K */
1587

    
1588
#ifdef TARGET_ALPHA
1589
void cpu_loop (CPUState *env)
1590
{
1591
    int trapnr;
1592
    target_siginfo_t info;
1593
    
1594
    while (1) {
1595
        trapnr = cpu_alpha_exec (env);
1596
        
1597
        switch (trapnr) {
1598
        case EXCP_RESET:
1599
            fprintf(stderr, "Reset requested. Exit\n");
1600
            exit(1);
1601
            break;
1602
        case EXCP_MCHK:
1603
            fprintf(stderr, "Machine check exception. Exit\n");
1604
            exit(1);
1605
            break;
1606
        case EXCP_ARITH:
1607
            fprintf(stderr, "Arithmetic trap.\n");
1608
            exit(1);
1609
            break;
1610
        case EXCP_HW_INTERRUPT:
1611
            fprintf(stderr, "External interrupt. Exit\n"); 
1612
            exit(1);
1613
            break;
1614
        case EXCP_DFAULT:
1615
            fprintf(stderr, "MMU data fault\n");
1616
            exit(1);
1617
            break;
1618
        case EXCP_DTB_MISS_PAL:
1619
            fprintf(stderr, "MMU data TLB miss in PALcode\n");
1620
            exit(1);
1621
            break;
1622
        case EXCP_ITB_MISS:
1623
            fprintf(stderr, "MMU instruction TLB miss\n");
1624
            exit(1);
1625
            break;
1626
        case EXCP_ITB_ACV:
1627
            fprintf(stderr, "MMU instruction access violation\n");
1628
            exit(1);
1629
            break;
1630
        case EXCP_DTB_MISS_NATIVE:
1631
            fprintf(stderr, "MMU data TLB miss\n");
1632
            exit(1);
1633
            break;
1634
        case EXCP_UNALIGN:
1635
            fprintf(stderr, "Unaligned access\n");
1636
            exit(1);
1637
            break;
1638
        case EXCP_OPCDEC:
1639
            fprintf(stderr, "Invalid instruction\n");
1640
            exit(1);
1641
            break;
1642
        case EXCP_FEN:
1643
            fprintf(stderr, "Floating-point not allowed\n");
1644
            exit(1);
1645
            break;
1646
        case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1):
1647
            fprintf(stderr, "Call to PALcode\n");
1648
            call_pal(env, (trapnr >> 6) | 0x80);
1649
            break;
1650
        case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1):
1651
            fprintf(stderr, "Privileged call to PALcode\n");
1652
            exit(1);
1653
            break;
1654
        case EXCP_DEBUG:
1655
            {
1656
                int sig;
1657

    
1658
                sig = gdb_handlesig (env, TARGET_SIGTRAP);
1659
                if (sig)
1660
                  {
1661
                    info.si_signo = sig;
1662
                    info.si_errno = 0;
1663
                    info.si_code = TARGET_TRAP_BRKPT;
1664
                    queue_signal(info.si_signo, &info);
1665
                  }
1666
            }
1667
            break;
1668
        default:
1669
            printf ("Unhandled trap: 0x%x\n", trapnr);
1670
            cpu_dump_state(env, stderr, fprintf, 0);
1671
            exit (1);
1672
        }
1673
        process_pending_signals (env);
1674
    }
1675
}
1676
#endif /* TARGET_ALPHA */
1677

    
1678
void usage(void)
1679
{
1680
    printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2007 Fabrice Bellard\n"
1681
           "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] [-cpu model] program [arguments...]\n"
1682
           "Linux CPU emulator (compiled for %s emulation)\n"
1683
           "\n"
1684
           "-h                print this help\n"
1685
           "-g port           wait gdb connection to port\n"
1686
           "-L path           set the elf interpreter prefix (default=%s)\n"
1687
           "-s size           set the stack size in bytes (default=%ld)\n"
1688
           "-cpu model        select CPU (-cpu ? for list)\n"
1689
           "-drop-ld-preload  drop LD_PRELOAD for target process\n"
1690
           "\n"
1691
           "debug options:\n"
1692
#ifdef USE_CODE_COPY
1693
           "-no-code-copy   disable code copy acceleration\n"
1694
#endif
1695
           "-d options   activate log (logfile=%s)\n"
1696
           "-p pagesize  set the host page size to 'pagesize'\n",
1697
           TARGET_ARCH,
1698
           interp_prefix, 
1699
           x86_stack_size,
1700
           DEBUG_LOGFILE);
1701
    _exit(1);
1702
}
1703

    
1704
/* XXX: currently only used for async signals (see signal.c) */
1705
CPUState *global_env;
1706

    
1707
/* used to free thread contexts */
1708
TaskState *first_task_state;
1709

    
1710
int main(int argc, char **argv)
1711
{
1712
    const char *filename;
1713
    const char *cpu_model;
1714
    struct target_pt_regs regs1, *regs = &regs1;
1715
    struct image_info info1, *info = &info1;
1716
    TaskState ts1, *ts = &ts1;
1717
    CPUState *env;
1718
    int optind;
1719
    const char *r;
1720
    int gdbstub_port = 0;
1721
    int drop_ld_preload = 0, environ_count = 0;
1722
    char **target_environ, **wrk, **dst;
1723

    
1724
    if (argc <= 1)
1725
        usage();
1726

    
1727
    /* init debug */
1728
    cpu_set_log_filename(DEBUG_LOGFILE);
1729

    
1730
    cpu_model = NULL;
1731
    optind = 1;
1732
    for(;;) {
1733
        if (optind >= argc)
1734
            break;
1735
        r = argv[optind];
1736
        if (r[0] != '-')
1737
            break;
1738
        optind++;
1739
        r++;
1740
        if (!strcmp(r, "-")) {
1741
            break;
1742
        } else if (!strcmp(r, "d")) {
1743
            int mask;
1744
            CPULogItem *item;
1745

    
1746
            if (optind >= argc)
1747
                break;
1748
            
1749
            r = argv[optind++];
1750
            mask = cpu_str_to_log_mask(r);
1751
            if (!mask) {
1752
                printf("Log items (comma separated):\n");
1753
                for(item = cpu_log_items; item->mask != 0; item++) {
1754
                    printf("%-10s %s\n", item->name, item->help);
1755
                }
1756
                exit(1);
1757
            }
1758
            cpu_set_log(mask);
1759
        } else if (!strcmp(r, "s")) {
1760
            r = argv[optind++];
1761
            x86_stack_size = strtol(r, (char **)&r, 0);
1762
            if (x86_stack_size <= 0)
1763
                usage();
1764
            if (*r == 'M')
1765
                x86_stack_size *= 1024 * 1024;
1766
            else if (*r == 'k' || *r == 'K')
1767
                x86_stack_size *= 1024;
1768
        } else if (!strcmp(r, "L")) {
1769
            interp_prefix = argv[optind++];
1770
        } else if (!strcmp(r, "p")) {
1771
            qemu_host_page_size = atoi(argv[optind++]);
1772
            if (qemu_host_page_size == 0 ||
1773
                (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
1774
                fprintf(stderr, "page size must be a power of two\n");
1775
                exit(1);
1776
            }
1777
        } else if (!strcmp(r, "g")) {
1778
            gdbstub_port = atoi(argv[optind++]);
1779
        } else if (!strcmp(r, "r")) {
1780
            qemu_uname_release = argv[optind++];
1781
        } else if (!strcmp(r, "cpu")) {
1782
            cpu_model = argv[optind++];
1783
            if (strcmp(cpu_model, "?") == 0) {
1784
#if defined(TARGET_PPC)
1785
                ppc_cpu_list(stdout, &fprintf);
1786
#elif defined(TARGET_ARM)
1787
                arm_cpu_list();
1788
#elif defined(TARGET_MIPS)
1789
                mips_cpu_list(stdout, &fprintf);
1790
#elif defined(TARGET_SPARC)
1791
                sparc_cpu_list(stdout, &fprintf);
1792
#endif
1793
                _exit(1);
1794
            }
1795
        } else if (!strcmp(r, "drop-ld-preload")) {
1796
            drop_ld_preload = 1;
1797
        } else 
1798
#ifdef USE_CODE_COPY
1799
        if (!strcmp(r, "no-code-copy")) {
1800
            code_copy_enabled = 0;
1801
        } else 
1802
#endif
1803
        {
1804
            usage();
1805
        }
1806
    }
1807
    if (optind >= argc)
1808
        usage();
1809
    filename = argv[optind];
1810

    
1811
    /* Zero out regs */
1812
    memset(regs, 0, sizeof(struct target_pt_regs));
1813

    
1814
    /* Zero out image_info */
1815
    memset(info, 0, sizeof(struct image_info));
1816

    
1817
    /* Scan interp_prefix dir for replacement files. */
1818
    init_paths(interp_prefix);
1819

    
1820
    /* NOTE: we need to init the CPU at this stage to get
1821
       qemu_host_page_size */
1822
    env = cpu_init();
1823
    global_env = env;
1824
    
1825
    wrk = environ;
1826
    while (*(wrk++))
1827
        environ_count++;
1828

    
1829
    target_environ = malloc((environ_count + 1) * sizeof(char *));
1830
    if (!target_environ)
1831
        abort();
1832
    for (wrk = environ, dst = target_environ; *wrk; wrk++) {
1833
        if (drop_ld_preload && !strncmp(*wrk, "LD_PRELOAD=", 11))
1834
            continue;
1835
        *(dst++) = strdup(*wrk);
1836
    }
1837
    *dst = NULL; /* NULL terminate target_environ */
1838

    
1839
    if (loader_exec(filename, argv+optind, target_environ, regs, info) != 0) {
1840
        printf("Error loading %s\n", filename);
1841
        _exit(1);
1842
    }
1843

    
1844
    for (wrk = target_environ; *wrk; wrk++) {
1845
        free(*wrk);
1846
    }
1847
    
1848
    free(target_environ);
1849

    
1850
    if (loglevel) {
1851
        page_dump(logfile);
1852
    
1853
        fprintf(logfile, "start_brk   0x%08lx\n" , info->start_brk);
1854
        fprintf(logfile, "end_code    0x%08lx\n" , info->end_code);
1855
        fprintf(logfile, "start_code  0x%08lx\n" , info->start_code);
1856
        fprintf(logfile, "start_data  0x%08lx\n" , info->start_data);
1857
        fprintf(logfile, "end_data    0x%08lx\n" , info->end_data);
1858
        fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack);
1859
        fprintf(logfile, "brk         0x%08lx\n" , info->brk);
1860
        fprintf(logfile, "entry       0x%08lx\n" , info->entry);
1861
    }
1862

    
1863
    target_set_brk(info->brk);
1864
    syscall_init();
1865
    signal_init();
1866

    
1867
    /* build Task State */
1868
    memset(ts, 0, sizeof(TaskState));
1869
    env->opaque = ts;
1870
    ts->used = 1;
1871
    ts->info = info;
1872
    env->user_mode_only = 1;
1873
    
1874
#if defined(TARGET_I386)
1875
    cpu_x86_set_cpl(env, 3);
1876

    
1877
    env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
1878
    env->hflags |= HF_PE_MASK;
1879
    if (env->cpuid_features & CPUID_SSE) {
1880
        env->cr[4] |= CR4_OSFXSR_MASK;
1881
        env->hflags |= HF_OSFXSR_MASK;
1882
    }
1883

    
1884
    /* flags setup : we activate the IRQs by default as in user mode */
1885
    env->eflags |= IF_MASK;
1886
    
1887
    /* linux register setup */
1888
#if defined(TARGET_X86_64)
1889
    env->regs[R_EAX] = regs->rax;
1890
    env->regs[R_EBX] = regs->rbx;
1891
    env->regs[R_ECX] = regs->rcx;
1892
    env->regs[R_EDX] = regs->rdx;
1893
    env->regs[R_ESI] = regs->rsi;
1894
    env->regs[R_EDI] = regs->rdi;
1895
    env->regs[R_EBP] = regs->rbp;
1896
    env->regs[R_ESP] = regs->rsp;
1897
    env->eip = regs->rip;
1898
#else
1899
    env->regs[R_EAX] = regs->eax;
1900
    env->regs[R_EBX] = regs->ebx;
1901
    env->regs[R_ECX] = regs->ecx;
1902
    env->regs[R_EDX] = regs->edx;
1903
    env->regs[R_ESI] = regs->esi;
1904
    env->regs[R_EDI] = regs->edi;
1905
    env->regs[R_EBP] = regs->ebp;
1906
    env->regs[R_ESP] = regs->esp;
1907
    env->eip = regs->eip;
1908
#endif
1909

    
1910
    /* linux interrupt setup */
1911
    env->idt.base = h2g(idt_table);
1912
    env->idt.limit = sizeof(idt_table) - 1;
1913
    set_idt(0, 0);
1914
    set_idt(1, 0);
1915
    set_idt(2, 0);
1916
    set_idt(3, 3);
1917
    set_idt(4, 3);
1918
    set_idt(5, 3);
1919
    set_idt(6, 0);
1920
    set_idt(7, 0);
1921
    set_idt(8, 0);
1922
    set_idt(9, 0);
1923
    set_idt(10, 0);
1924
    set_idt(11, 0);
1925
    set_idt(12, 0);
1926
    set_idt(13, 0);
1927
    set_idt(14, 0);
1928
    set_idt(15, 0);
1929
    set_idt(16, 0);
1930
    set_idt(17, 0);
1931
    set_idt(18, 0);
1932
    set_idt(19, 0);
1933
    set_idt(0x80, 3);
1934

    
1935
    /* linux segment setup */
1936
    env->gdt.base = h2g(gdt_table);
1937
    env->gdt.limit = sizeof(gdt_table) - 1;
1938
    write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
1939
             DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | 
1940
             (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
1941
    write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
1942
             DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | 
1943
             (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
1944
    cpu_x86_load_seg(env, R_CS, __USER_CS);
1945
    cpu_x86_load_seg(env, R_DS, __USER_DS);
1946
    cpu_x86_load_seg(env, R_ES, __USER_DS);
1947
    cpu_x86_load_seg(env, R_SS, __USER_DS);
1948
    cpu_x86_load_seg(env, R_FS, __USER_DS);
1949
    cpu_x86_load_seg(env, R_GS, __USER_DS);
1950

    
1951
    /* This hack makes Wine work... */
1952
    env->segs[R_FS].selector = 0;
1953
#elif defined(TARGET_ARM)
1954
    {
1955
        int i;
1956
        if (cpu_model == NULL)
1957
            cpu_model = "arm926";
1958
        cpu_arm_set_model(env, cpu_model);
1959
        cpsr_write(env, regs->uregs[16], 0xffffffff);
1960
        for(i = 0; i < 16; i++) {
1961
            env->regs[i] = regs->uregs[i];
1962
        }
1963
    }
1964
#elif defined(TARGET_SPARC)
1965
    {
1966
        int i;
1967
        const sparc_def_t *def;
1968
#ifdef TARGET_SPARC64
1969
        if (cpu_model == NULL)
1970
            cpu_model = "TI UltraSparc II";
1971
#else
1972
        if (cpu_model == NULL)
1973
            cpu_model = "Fujitsu MB86904";
1974
#endif
1975
        sparc_find_by_name(cpu_model, &def);
1976
        if (def == NULL) {
1977
            fprintf(stderr, "Unable to find Sparc CPU definition\n");
1978
            exit(1);
1979
        }
1980
        cpu_sparc_register(env, def);
1981
        env->pc = regs->pc;
1982
        env->npc = regs->npc;
1983
        env->y = regs->y;
1984
        for(i = 0; i < 8; i++)
1985
            env->gregs[i] = regs->u_regs[i];
1986
        for(i = 0; i < 8; i++)
1987
            env->regwptr[i] = regs->u_regs[i + 8];
1988
    }
1989
#elif defined(TARGET_PPC)
1990
    {
1991
        ppc_def_t *def;
1992
        int i;
1993

    
1994
        /* Choose and initialise CPU */
1995
        if (cpu_model == NULL)
1996
            cpu_model = "750";
1997
        ppc_find_by_name(cpu_model, &def);
1998
        if (def == NULL) {
1999
            cpu_abort(env,
2000
                      "Unable to find PowerPC CPU definition\n");
2001
        }
2002
        cpu_ppc_register(env, def);
2003

    
2004
        for (i = 0; i < 32; i++) {
2005
            if (i != 12 && i != 6 && i != 13)
2006
                env->msr[i] = (regs->msr >> i) & 1;
2007
        }
2008
#if defined(TARGET_PPC64)
2009
        msr_sf = 1;
2010
#endif
2011
        env->nip = regs->nip;
2012
        for(i = 0; i < 32; i++) {
2013
            env->gpr[i] = regs->gpr[i];
2014
        }
2015
    }
2016
#elif defined(TARGET_M68K)
2017
    {
2018
        if (cpu_model == NULL)
2019
            cpu_model = "any";
2020
        if (cpu_m68k_set_model(env, cpu_model)) {
2021
            cpu_abort(cpu_single_env,
2022
                      "Unable to find m68k CPU definition\n");
2023
        }
2024
        env->pc = regs->pc;
2025
        env->dregs[0] = regs->d0;
2026
        env->dregs[1] = regs->d1;
2027
        env->dregs[2] = regs->d2;
2028
        env->dregs[3] = regs->d3;
2029
        env->dregs[4] = regs->d4;
2030
        env->dregs[5] = regs->d5;
2031
        env->dregs[6] = regs->d6;
2032
        env->dregs[7] = regs->d7;
2033
        env->aregs[0] = regs->a0;
2034
        env->aregs[1] = regs->a1;
2035
        env->aregs[2] = regs->a2;
2036
        env->aregs[3] = regs->a3;
2037
        env->aregs[4] = regs->a4;
2038
        env->aregs[5] = regs->a5;
2039
        env->aregs[6] = regs->a6;
2040
        env->aregs[7] = regs->usp;
2041
        env->sr = regs->sr;
2042
        ts->sim_syscalls = 1;
2043
    }
2044
#elif defined(TARGET_MIPS)
2045
    {
2046
        mips_def_t *def;
2047
        int i;
2048

    
2049
        /* Choose and initialise CPU */
2050
        if (cpu_model == NULL)
2051
            cpu_model = "24Kf";
2052
        mips_find_by_name(cpu_model, &def);
2053
        if (def == NULL)
2054
            cpu_abort(env, "Unable to find MIPS CPU definition\n");
2055
        cpu_mips_register(env, def);
2056

    
2057
        for(i = 0; i < 32; i++) {
2058
            env->gpr[i][env->current_tc] = regs->regs[i];
2059
        }
2060
        env->PC[env->current_tc] = regs->cp0_epc;
2061
    }
2062
#elif defined(TARGET_SH4)
2063
    {
2064
        int i;
2065

    
2066
        for(i = 0; i < 16; i++) {
2067
            env->gregs[i] = regs->regs[i];
2068
        }
2069
        env->pc = regs->pc;
2070
    }
2071
#elif defined(TARGET_ALPHA)
2072
    {
2073
        int i;
2074

    
2075
        for(i = 0; i < 28; i++) {
2076
            env->ir[i] = ((target_ulong *)regs)[i];
2077
        }
2078
        env->ipr[IPR_USP] = regs->usp;
2079
        env->ir[30] = regs->usp;
2080
        env->pc = regs->pc;
2081
        env->unique = regs->unique;
2082
    }
2083
#else
2084
#error unsupported target CPU
2085
#endif
2086

    
2087
#if defined(TARGET_ARM) || defined(TARGET_M68K)
2088
    ts->stack_base = info->start_stack;
2089
    ts->heap_base = info->brk;
2090
    /* This will be filled in on the first SYS_HEAPINFO call.  */
2091
    ts->heap_limit = 0;
2092
#endif
2093

    
2094
    if (gdbstub_port) {
2095
        gdbserver_start (gdbstub_port);
2096
        gdb_handlesig(env, 0);
2097
    }
2098
    cpu_loop(env);
2099
    /* never exits */
2100
    return 0;
2101
}