Statistics
| Branch: | Revision:

root / linux-user / strace.c @ 4de596cb

History | View | Annotate | Download (33.8 kB)

1
#include <stdio.h>
2
#include <errno.h>
3
#include <sys/ipc.h>
4
#include <sys/msg.h>
5
#include <sys/sem.h>
6
#include <sys/shm.h>
7
#include <sys/select.h>
8
#include <sys/types.h>
9
#include <sys/mount.h>
10
#include <sys/mman.h>
11
#include <unistd.h>
12
#include "qemu.h"
13

    
14
int do_strace=0;
15

    
16
struct syscallname {
17
    int nr;
18
    const char *name;
19
    const char *format;
20
    void (*call)(const struct syscallname *,
21
                 abi_long, abi_long, abi_long,
22
                 abi_long, abi_long, abi_long);
23
    void (*result)(const struct syscallname *, abi_long);
24
};
25

    
26
#ifdef __GNUC__
27
/*
28
 * It is possible that target doesn't have syscall that uses
29
 * following flags but we don't want the compiler to warn
30
 * us about them being unused.  Same applies to utility print
31
 * functions.  It is ok to keep them while not used.
32
 */
33
#define UNUSED __attribute__ ((unused))
34
#else
35
#define UNUSED
36
#endif
37

    
38
/*
39
 * Structure used to translate flag values into strings.  This is
40
 * similar that is in the actual strace tool.
41
 */
42
struct flags {
43
    abi_long    f_value;  /* flag */
44
    const char  *f_string; /* stringified flag */
45
};
46

    
47
/* common flags for all architectures */
48
#define FLAG_GENERIC(name) { name, #name }
49
/* target specific flags (syscall_defs.h has TARGET_<flag>) */
50
#define FLAG_TARGET(name)  { TARGET_ ## name, #name }
51
/* end of flags array */
52
#define FLAG_END           { 0, NULL }
53

    
54
UNUSED static const char *get_comma(int);
55
UNUSED static void print_pointer(abi_long, int);
56
UNUSED static void print_flags(const struct flags *, abi_long, int);
57
UNUSED static void print_at_dirfd(abi_long, int);
58
UNUSED static void print_file_mode(abi_long, int);
59
UNUSED static void print_open_flags(abi_long, int);
60
UNUSED static void print_syscall_prologue(const struct syscallname *);
61
UNUSED static void print_syscall_epilogue(const struct syscallname *);
62
UNUSED static void print_string(abi_long, int);
63
UNUSED static void print_raw_param(const char *, abi_long, int);
64
UNUSED static void print_timeval(abi_ulong, int);
65
UNUSED static void print_number(abi_long, int);
66

    
67
/*
68
 * Utility functions
69
 */
70
static void
71
print_ipc_cmd(int cmd)
72
{
73
#define output_cmd(val) \
74
if( cmd == val ) { \
75
    gemu_log(#val); \
76
    return; \
77
}
78

    
79
    cmd &= 0xff;
80

    
81
    /* General IPC commands */
82
    output_cmd( IPC_RMID );
83
    output_cmd( IPC_SET );
84
    output_cmd( IPC_STAT );
85
    output_cmd( IPC_INFO );
86
    /* msgctl() commands */
87
    #ifdef __USER_MISC
88
    output_cmd( MSG_STAT );
89
    output_cmd( MSG_INFO );
90
    #endif
91
    /* shmctl() commands */
92
    output_cmd( SHM_LOCK );
93
    output_cmd( SHM_UNLOCK );
94
    output_cmd( SHM_STAT );
95
    output_cmd( SHM_INFO );
96
    /* semctl() commands */
97
    output_cmd( GETPID );
98
    output_cmd( GETVAL );
99
    output_cmd( GETALL );
100
    output_cmd( GETNCNT );
101
    output_cmd( GETZCNT );
102
    output_cmd( SETVAL );
103
    output_cmd( SETALL );
104
    output_cmd( SEM_STAT );
105
    output_cmd( SEM_INFO );
106
    output_cmd( IPC_RMID );
107
    output_cmd( IPC_RMID );
108
    output_cmd( IPC_RMID );
109
    output_cmd( IPC_RMID );
110
    output_cmd( IPC_RMID );
111
    output_cmd( IPC_RMID );
112
    output_cmd( IPC_RMID );
113
    output_cmd( IPC_RMID );
114
    output_cmd( IPC_RMID );
115

    
116
    /* Some value we don't recognize */
117
    gemu_log("%d",cmd);
118
}
119

    
120
#ifdef TARGET_NR__newselect
121
static void
122
print_fdset(int n, abi_ulong target_fds_addr)
123
{
124
    int i;
125

    
126
    gemu_log("[");
127
    if( target_fds_addr ) {
128
        abi_long *target_fds;
129

    
130
        target_fds = lock_user(VERIFY_READ,
131
                               target_fds_addr,
132
                               sizeof(*target_fds)*(n / TARGET_ABI_BITS + 1),
133
                               1);
134

    
135
        if (!target_fds)
136
            return;
137

    
138
        for (i=n; i>=0; i--) {
139
            if ((tswapl(target_fds[i / TARGET_ABI_BITS]) >> (i & (TARGET_ABI_BITS - 1))) & 1)
140
                gemu_log("%d,", i );
141
            }
142
        unlock_user(target_fds, target_fds_addr, 0);
143
    }
144
    gemu_log("]");
145
}
146
#endif
147

    
148
/*
149
 * Sysycall specific output functions
150
 */
151

    
152
/* select */
153
#ifdef TARGET_NR__newselect
154
static long newselect_arg1 = 0;
155
static long newselect_arg2 = 0;
156
static long newselect_arg3 = 0;
157
static long newselect_arg4 = 0;
158
static long newselect_arg5 = 0;
159

    
160
static void
161
print_newselect(const struct syscallname *name,
162
                abi_long arg1, abi_long arg2, abi_long arg3,
163
                abi_long arg4, abi_long arg5, abi_long arg6)
164
{
165
    gemu_log("%s(" TARGET_ABI_FMT_ld ",", name->name, arg1);
166
    print_fdset(arg1, arg2);
167
    gemu_log(",");
168
    print_fdset(arg1, arg3);
169
    gemu_log(",");
170
    print_fdset(arg1, arg4);
171
    gemu_log(",");
172
    print_timeval(arg5, 1);
173
    gemu_log(")");
174

    
175
    /* save for use in the return output function below */
176
    newselect_arg1=arg1;
177
    newselect_arg2=arg2;
178
    newselect_arg3=arg3;
179
    newselect_arg4=arg4;
180
    newselect_arg5=arg5;
181
}
182
#endif
183

    
184
#ifdef TARGET_NR_semctl
185
static void
186
print_semctl(const struct syscallname *name,
187
             abi_long arg1, abi_long arg2, abi_long arg3,
188
             abi_long arg4, abi_long arg5, abi_long arg6)
189
{
190
    gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", name->name, arg1, arg2);
191
    print_ipc_cmd(arg3);
192
    gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
193
}
194
#endif
195

    
196
static void
197
print_execve(const struct syscallname *name,
198
             abi_long arg1, abi_long arg2, abi_long arg3,
199
             abi_long arg4, abi_long arg5, abi_long arg6)
200
{
201
    abi_ulong arg_ptr_addr;
202
    char *s;
203

    
204
    if (!(s = lock_user_string(arg1)))
205
        return;
206
    gemu_log("%s(\"%s\",{", name->name, s);
207
    unlock_user(s, arg1, 0);
208

    
209
    for (arg_ptr_addr = arg2; ; arg_ptr_addr += sizeof(abi_ulong)) {
210
        abi_ulong *arg_ptr, arg_addr;
211

    
212
        arg_ptr = lock_user(VERIFY_READ, arg_ptr_addr, sizeof(abi_ulong), 1);
213
        if (!arg_ptr)
214
            return;
215
        arg_addr = tswapl(*arg_ptr);
216
        unlock_user(arg_ptr, arg_ptr_addr, 0);
217
        if (!arg_addr)
218
            break;
219
        if ((s = lock_user_string(arg_addr))) {
220
            gemu_log("\"%s\",", s);
221
            unlock_user(s, arg_addr, 0);
222
        }
223
    }
224

    
225
    gemu_log("NULL})");
226
}
227

    
228
#ifdef TARGET_NR_ipc
229
static void
230
print_ipc(const struct syscallname *name,
231
          abi_long arg1, abi_long arg2, abi_long arg3,
232
          abi_long arg4, abi_long arg5, abi_long arg6)
233
{
234
    switch(arg1) {
235
    case IPCOP_semctl:
236
        gemu_log("semctl(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", arg1, arg2);
237
        print_ipc_cmd(arg3);
238
        gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
239
        break;
240
    default:
241
        gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ")",
242
                 name->name, arg1, arg2, arg3, arg4);
243
    }
244
}
245
#endif
246

    
247
/*
248
 * Variants for the return value output function
249
 */
250

    
251
static void
252
print_syscall_ret_addr(const struct syscallname *name, abi_long ret)
253
{
254
if( ret == -1 ) {
255
        gemu_log(" = -1 errno=%d (%s)\n", errno, target_strerror(errno));
256
    } else {
257
        gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
258
    }
259
}
260

    
261
#if 0 /* currently unused */
262
static void
263
print_syscall_ret_raw(struct syscallname *name, abi_long ret)
264
{
265
        gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
266
}
267
#endif
268

    
269
#ifdef TARGET_NR__newselect
270
static void
271
print_syscall_ret_newselect(const struct syscallname *name, abi_long ret)
272
{
273
    gemu_log(" = 0x" TARGET_ABI_FMT_lx " (", ret);
274
    print_fdset(newselect_arg1,newselect_arg2);
275
    gemu_log(",");
276
    print_fdset(newselect_arg1,newselect_arg3);
277
    gemu_log(",");
278
    print_fdset(newselect_arg1,newselect_arg4);
279
    gemu_log(",");
280
    print_timeval(newselect_arg5, 1);
281
    gemu_log(")\n");
282
}
283
#endif
284

    
285
UNUSED static struct flags access_flags[] = {
286
    FLAG_GENERIC(F_OK),
287
    FLAG_GENERIC(R_OK),
288
    FLAG_GENERIC(W_OK),
289
    FLAG_GENERIC(X_OK),
290
    FLAG_END,
291
};
292

    
293
UNUSED static struct flags at_file_flags[] = {
294
#ifdef AT_EACCESS
295
    FLAG_GENERIC(AT_EACCESS),
296
#endif
297
#ifdef AT_SYMLINK_NOFOLLOW
298
    FLAG_GENERIC(AT_SYMLINK_NOFOLLOW),
299
#endif
300
    FLAG_END,
301
};
302

    
303
UNUSED static struct flags unlinkat_flags[] = {
304
#ifdef AT_REMOVEDIR
305
    FLAG_GENERIC(AT_REMOVEDIR),
306
#endif
307
    FLAG_END,
308
};
309

    
310
UNUSED static struct flags mode_flags[] = {
311
    FLAG_GENERIC(S_IFSOCK),
312
    FLAG_GENERIC(S_IFLNK),
313
    FLAG_GENERIC(S_IFREG),
314
    FLAG_GENERIC(S_IFBLK),
315
    FLAG_GENERIC(S_IFDIR),
316
    FLAG_GENERIC(S_IFCHR),
317
    FLAG_GENERIC(S_IFIFO),
318
    FLAG_END,
319
};
320

    
321
UNUSED static struct flags open_access_flags[] = {
322
    FLAG_TARGET(O_RDONLY),
323
    FLAG_TARGET(O_WRONLY),
324
    FLAG_TARGET(O_RDWR),
325
    FLAG_END,
326
};
327

    
328
UNUSED static struct flags open_flags[] = {
329
    FLAG_TARGET(O_APPEND),
330
    FLAG_TARGET(O_CREAT),
331
    FLAG_TARGET(O_DIRECTORY),
332
    FLAG_TARGET(O_EXCL),
333
    FLAG_TARGET(O_LARGEFILE),
334
    FLAG_TARGET(O_NOCTTY),
335
    FLAG_TARGET(O_NOFOLLOW),
336
    FLAG_TARGET(O_NONBLOCK),      /* also O_NDELAY */
337
    FLAG_TARGET(O_SYNC),
338
    FLAG_TARGET(O_TRUNC),
339
#ifdef O_DIRECT
340
    FLAG_TARGET(O_DIRECT),
341
#endif
342
    FLAG_END,
343
};
344

    
345
UNUSED static struct flags mount_flags[] = {
346
#ifdef MS_BIND
347
    FLAG_GENERIC(MS_BIND),
348
#endif
349
#ifdef MS_DIRSYNC
350
    FLAG_GENERIC(MS_DIRSYNC),
351
#endif
352
    FLAG_GENERIC(MS_MANDLOCK),
353
#ifdef MS_MOVE
354
    FLAG_GENERIC(MS_MOVE),
355
#endif
356
    FLAG_GENERIC(MS_NOATIME),
357
    FLAG_GENERIC(MS_NODEV),
358
    FLAG_GENERIC(MS_NODIRATIME),
359
    FLAG_GENERIC(MS_NOEXEC),
360
    FLAG_GENERIC(MS_NOSUID),
361
    FLAG_GENERIC(MS_RDONLY),
362
#ifdef MS_RELATIME
363
    FLAG_GENERIC(MS_RELATIME),
364
#endif
365
    FLAG_GENERIC(MS_REMOUNT),
366
    FLAG_GENERIC(MS_SYNCHRONOUS),
367
    FLAG_END,
368
};
369

    
370
UNUSED static struct flags umount2_flags[] = {
371
#ifdef MNT_FORCE
372
    FLAG_GENERIC(MNT_FORCE),
373
#endif
374
#ifdef MNT_DETACH
375
    FLAG_GENERIC(MNT_DETACH),
376
#endif
377
#ifdef MNT_EXPIRE
378
    FLAG_GENERIC(MNT_EXPIRE),
379
#endif
380
    FLAG_END,
381
};
382

    
383
UNUSED static struct flags mmap_prot_flags[] = {
384
    FLAG_GENERIC(PROT_NONE),
385
    FLAG_GENERIC(PROT_EXEC),
386
    FLAG_GENERIC(PROT_READ),
387
    FLAG_GENERIC(PROT_WRITE),
388
    FLAG_TARGET(PROT_SEM),
389
    FLAG_GENERIC(PROT_GROWSDOWN),
390
    FLAG_GENERIC(PROT_GROWSUP),
391
    FLAG_END,
392
};
393

    
394
UNUSED static struct flags mmap_flags[] = {
395
    FLAG_TARGET(MAP_SHARED),
396
    FLAG_TARGET(MAP_PRIVATE),
397
    FLAG_TARGET(MAP_ANONYMOUS),
398
    FLAG_TARGET(MAP_DENYWRITE),
399
    FLAG_TARGET(MAP_FIXED),
400
    FLAG_TARGET(MAP_GROWSDOWN),
401
    FLAG_TARGET(MAP_EXECUTABLE),
402
#ifdef MAP_LOCKED
403
    FLAG_TARGET(MAP_LOCKED),
404
#endif
405
#ifdef MAP_NONBLOCK
406
    FLAG_TARGET(MAP_NONBLOCK),
407
#endif
408
    FLAG_TARGET(MAP_NORESERVE),
409
#ifdef MAP_POPULATE
410
    FLAG_TARGET(MAP_POPULATE),
411
#endif
412
#ifdef TARGET_MAP_UNINITIALIZED
413
    FLAG_TARGET(MAP_UNINITIALIZED),
414
#endif
415
    FLAG_END,
416
};
417

    
418
UNUSED static struct flags fcntl_flags[] = {
419
    FLAG_TARGET(F_DUPFD),
420
    FLAG_TARGET(F_GETFD),
421
    FLAG_TARGET(F_SETFD),
422
    FLAG_TARGET(F_GETFL),
423
    FLAG_TARGET(F_SETFL),
424
    FLAG_TARGET(F_GETLK),
425
    FLAG_TARGET(F_SETLK),
426
    FLAG_TARGET(F_SETLKW),
427
    FLAG_END,
428
};
429

    
430
/*
431
 * print_xxx utility functions.  These are used to print syscall
432
 * parameters in certain format.  All of these have parameter
433
 * named 'last'.  This parameter is used to add comma to output
434
 * when last == 0.
435
 */
436

    
437
static const char *
438
get_comma(int last)
439
{
440
    return ((last) ? "" : ",");
441
}
442

    
443
static void
444
print_flags(const struct flags *f, abi_long tflags, int last)
445
{
446
    const char *sep = "";
447
    int flags;
448
    int n;
449

    
450
    flags = (int)tswap32(tflags);
451

    
452
    if ((flags == 0) && (f->f_value == 0)) {
453
        gemu_log("%s%s", f->f_string, get_comma(last));
454
        return;
455
    }
456
    for (n = 0; f->f_string != NULL; f++) {
457
        if ((f->f_value != 0) && ((flags & f->f_value) == f->f_value)) {
458
            gemu_log("%s%s", sep, f->f_string);
459
            flags &= ~f->f_value;
460
            sep = "|";
461
            n++;
462
        }
463
    }
464

    
465
    if (n > 0) {
466
        /* print rest of the flags as numeric */
467
        if (flags != 0) {
468
            gemu_log("%s%#x%s", sep, flags, get_comma(last));
469
        } else {
470
            gemu_log("%s", get_comma(last));
471
        }
472
    } else {
473
        /* no string version of flags found, print them in hex then */
474
        gemu_log("%#x%s", flags, get_comma(last));
475
    }
476
}
477

    
478
static void
479
print_at_dirfd(abi_long tdirfd, int last)
480
{
481
    int dirfd = tswap32(tdirfd);
482

    
483
#ifdef AT_FDCWD
484
    if (dirfd == AT_FDCWD) {
485
        gemu_log("AT_FDCWD%s", get_comma(last));
486
        return;
487
    }
488
#endif
489
    gemu_log("%d%s", dirfd, get_comma(last));
490
}
491

    
492
static void
493
print_file_mode(abi_long tmode, int last)
494
{
495
    const char *sep = "";
496
    const struct flags *m;
497
    mode_t mode = (mode_t)tswap32(tmode);
498

    
499
    for (m = &mode_flags[0]; m->f_string != NULL; m++) {
500
        if ((m->f_value & mode) == m->f_value) {
501
            gemu_log("%s%s", m->f_string, sep);
502
            sep = "|";
503
            mode &= ~m->f_value;
504
            break;
505
        }
506
    }
507

    
508
    mode &= ~S_IFMT;
509
    /* print rest of the mode as octal */
510
    if (mode != 0)
511
        gemu_log("%s%#o", sep, mode);
512

    
513
    gemu_log("%s", get_comma(last));
514
}
515

    
516
static void
517
print_open_flags(abi_long tflags, int last)
518
{
519
    int flags = tswap32(tflags);
520

    
521
    print_flags(open_access_flags, flags & TARGET_O_ACCMODE, 1);
522
    flags &= ~TARGET_O_ACCMODE;
523
    if (flags == 0) {
524
        gemu_log("%s", get_comma(last));
525
        return;
526
    }
527
    gemu_log("|");
528
    print_flags(open_flags, flags, last);
529
}
530

    
531
static void
532
print_syscall_prologue(const struct syscallname *sc)
533
{
534
    gemu_log("%s(", sc->name);
535
}
536

    
537
/*ARGSUSED*/
538
static void
539
print_syscall_epilogue(const struct syscallname *sc)
540
{
541
    (void)sc;
542
    gemu_log(")");
543
}
544

    
545
static void
546
print_string(abi_long addr, int last)
547
{
548
    char *s;
549

    
550
    if ((s = lock_user_string(addr)) != NULL) {
551
        gemu_log("\"%s\"%s", s, get_comma(last));
552
        unlock_user(s, addr, 0);
553
    } else {
554
        /* can't get string out of it, so print it as pointer */
555
        print_pointer(addr, last);
556
    }
557
}
558

    
559
/*
560
 * Prints out raw parameter using given format.  Caller needs
561
 * to do byte swapping if needed.
562
 */
563
static void
564
print_raw_param(const char *fmt, abi_long param, int last)
565
{
566
    char format[64];
567

    
568
    (void) snprintf(format, sizeof (format), "%s%s", fmt, get_comma(last));
569
    gemu_log(format, param);
570
}
571

    
572
static void
573
print_pointer(abi_long p, int last)
574
{
575
    if (p == 0)
576
        gemu_log("NULL%s", get_comma(last));
577
    else
578
        gemu_log("0x" TARGET_ABI_FMT_lx "%s", p, get_comma(last));
579
}
580

    
581
/*
582
 * Reads 32-bit (int) number from guest address space from
583
 * address 'addr' and prints it.
584
 */
585
static void
586
print_number(abi_long addr, int last)
587
{
588
    if (addr == 0) {
589
        gemu_log("NULL%s", get_comma(last));
590
    } else {
591
        int num;
592

    
593
        get_user_s32(num, addr);
594
        gemu_log("[%d]%s", num, get_comma(last));
595
    }
596
}
597

    
598
static void
599
print_timeval(abi_ulong tv_addr, int last)
600
{
601
    if( tv_addr ) {
602
        struct target_timeval *tv;
603

    
604
        tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1);
605
        if (!tv)
606
            return;
607
        gemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s",
608
            tv->tv_sec, tv->tv_usec, get_comma(last));
609
        unlock_user(tv, tv_addr, 0);
610
    } else
611
        gemu_log("NULL%s", get_comma(last));
612
}
613

    
614
#undef UNUSED
615

    
616
#ifdef TARGET_NR_accept
617
static void
618
print_accept(const struct syscallname *name,
619
    abi_long arg0, abi_long arg1, abi_long arg2,
620
    abi_long arg3, abi_long arg4, abi_long arg5)
621
{
622
    print_syscall_prologue(name);
623
    print_raw_param("%d", tswap32(arg0), 0);
624
    print_pointer(arg1, 0);
625
    print_number(arg2, 1);
626
    print_syscall_epilogue(name);
627
}
628
#endif
629

    
630
#ifdef TARGET_NR_access
631
static void
632
print_access(const struct syscallname *name,
633
    abi_long arg0, abi_long arg1, abi_long arg2,
634
    abi_long arg3, abi_long arg4, abi_long arg5)
635
{
636
    print_syscall_prologue(name);
637
    print_string(arg0, 0);
638
    print_flags(access_flags, arg1, 1);
639
    print_syscall_epilogue(name);
640
}
641
#endif
642

    
643
#ifdef TARGET_NR_brk
644
static void
645
print_brk(const struct syscallname *name,
646
    abi_long arg0, abi_long arg1, abi_long arg2,
647
    abi_long arg3, abi_long arg4, abi_long arg5)
648
{
649
    print_syscall_prologue(name);
650
    print_pointer(arg0, 1);
651
    print_syscall_epilogue(name);
652
}
653
#endif
654

    
655
#ifdef TARGET_NR_chdir
656
static void
657
print_chdir(const struct syscallname *name,
658
    abi_long arg0, abi_long arg1, abi_long arg2,
659
    abi_long arg3, abi_long arg4, abi_long arg5)
660
{
661
    print_syscall_prologue(name);
662
    print_string(arg0, 1);
663
    print_syscall_epilogue(name);
664
}
665
#endif
666

    
667
#ifdef TARGET_NR_chmod
668
static void
669
print_chmod(const struct syscallname *name,
670
    abi_long arg0, abi_long arg1, abi_long arg2,
671
    abi_long arg3, abi_long arg4, abi_long arg5)
672
{
673
    print_syscall_prologue(name);
674
    print_string(arg0, 0);
675
    print_file_mode(arg1, 1);
676
    print_syscall_epilogue(name);
677
}
678
#endif
679

    
680
#ifdef TARGET_NR_creat
681
static void
682
print_creat(const struct syscallname *name,
683
    abi_long arg0, abi_long arg1, abi_long arg2,
684
    abi_long arg3, abi_long arg4, abi_long arg5)
685
{
686
    print_syscall_prologue(name);
687
    print_string(arg0, 0);
688
    print_file_mode(arg1, 1);
689
    print_syscall_epilogue(name);
690
}
691
#endif
692

    
693
#ifdef TARGET_NR_execv
694
static void
695
print_execv(const struct syscallname *name,
696
    abi_long arg0, abi_long arg1, abi_long arg2,
697
    abi_long arg3, abi_long arg4, abi_long arg5)
698
{
699
    print_syscall_prologue(name);
700
    print_string(arg0, 0);
701
    print_raw_param("0x" TARGET_ABI_FMT_lx, tswapl(arg1), 1);
702
    print_syscall_epilogue(name);
703
}
704
#endif
705

    
706
#ifdef TARGET_NR_faccessat
707
static void
708
print_faccessat(const struct syscallname *name,
709
    abi_long arg0, abi_long arg1, abi_long arg2,
710
    abi_long arg3, abi_long arg4, abi_long arg5)
711
{
712
    print_syscall_prologue(name);
713
    print_at_dirfd(arg0, 0);
714
    print_string(arg1, 0);
715
    print_flags(access_flags, arg2, 0);
716
    print_flags(at_file_flags, arg3, 1);
717
    print_syscall_epilogue(name);
718
}
719
#endif
720

    
721
#ifdef TARGET_NR_fchmodat
722
static void
723
print_fchmodat(const struct syscallname *name,
724
    abi_long arg0, abi_long arg1, abi_long arg2,
725
    abi_long arg3, abi_long arg4, abi_long arg5)
726
{
727
    print_syscall_prologue(name);
728
    print_at_dirfd(arg0, 0);
729
    print_string(arg1, 0);
730
    print_file_mode(arg2, 0);
731
    print_flags(at_file_flags, arg3, 1);
732
    print_syscall_epilogue(name);
733
}
734
#endif
735

    
736
#ifdef TARGET_NR_fchownat
737
static void
738
print_fchownat(const struct syscallname *name,
739
    abi_long arg0, abi_long arg1, abi_long arg2,
740
    abi_long arg3, abi_long arg4, abi_long arg5)
741
{
742
    print_syscall_prologue(name);
743
    print_at_dirfd(arg0, 0);
744
    print_string(arg1, 0);
745
#ifdef USE_UID16
746
    print_raw_param("%d", tswap16(arg2), 0);
747
    print_raw_param("%d", tswap16(arg3), 0);
748
#else
749
    print_raw_param("%d", tswap32(arg2), 0);
750
    print_raw_param("%d", tswap32(arg3), 0);
751
#endif
752
    print_flags(at_file_flags, arg4, 1);
753
    print_syscall_epilogue(name);
754
}
755
#endif
756

    
757
#if defined(TARGET_NR_fcntl) || defined(TARGET_NR_fcntl64)
758
static void
759
print_fcntl(const struct syscallname *name,
760
    abi_long arg0, abi_long arg1, abi_long arg2,
761
    abi_long arg3, abi_long arg4, abi_long arg5)
762
{
763
    print_syscall_prologue(name);
764
    print_raw_param("%d", tswap32(arg0), 0);
765
    print_flags(fcntl_flags, arg1, 0);
766
    /*
767
     * TODO: check flags and print following argument only
768
     *       when needed.
769
     */
770
    print_pointer(arg2, 1);
771
    print_syscall_epilogue(name);
772
}
773
#define print_fcntl64   print_fcntl
774
#endif
775

    
776

    
777
#ifdef TARGET_NR_futimesat
778
static void
779
print_futimesat(const struct syscallname *name,
780
    abi_long arg0, abi_long arg1, abi_long arg2,
781
    abi_long arg3, abi_long arg4, abi_long arg5)
782
{
783
    print_syscall_prologue(name);
784
    print_at_dirfd(arg0, 0);
785
    print_string(arg1, 0);
786
    print_timeval(arg2, 0);
787
    print_timeval(arg2 + sizeof (struct target_timeval), 1);
788
    print_syscall_epilogue(name);
789
}
790
#endif
791

    
792
#ifdef TARGET_NR_link
793
static void
794
print_link(const struct syscallname *name,
795
    abi_long arg0, abi_long arg1, abi_long arg2,
796
    abi_long arg3, abi_long arg4, abi_long arg5)
797
{
798
    print_syscall_prologue(name);
799
    print_string(arg0, 0);
800
    print_string(arg1, 1);
801
    print_syscall_epilogue(name);
802
}
803
#endif
804

    
805
#ifdef TARGET_NR_linkat
806
static void
807
print_linkat(const struct syscallname *name,
808
    abi_long arg0, abi_long arg1, abi_long arg2,
809
    abi_long arg3, abi_long arg4, abi_long arg5)
810
{
811
    print_syscall_prologue(name);
812
    print_at_dirfd(arg0, 0);
813
    print_string(arg1, 0);
814
    print_at_dirfd(arg2, 0);
815
    print_string(arg3, 0);
816
    print_flags(at_file_flags, arg4, 1);
817
    print_syscall_epilogue(name);
818
}
819
#endif
820

    
821
#if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) || \
822
    defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64)
823
static void
824
print_stat(const struct syscallname *name,
825
    abi_long arg0, abi_long arg1, abi_long arg2,
826
    abi_long arg3, abi_long arg4, abi_long arg5)
827
{
828
    print_syscall_prologue(name);
829
    print_string(arg0, 0);
830
    print_pointer(arg1, 1);
831
    print_syscall_epilogue(name);
832
}
833
#define print_lstat     print_stat
834
#define print_stat64        print_stat
835
#define print_lstat64   print_stat
836
#endif
837

    
838
#if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
839
static void
840
print_fstat(const struct syscallname *name,
841
    abi_long arg0, abi_long arg1, abi_long arg2,
842
    abi_long arg3, abi_long arg4, abi_long arg5)
843
{
844
    print_syscall_prologue(name);
845
    print_raw_param("%d", tswap32(arg0), 0);
846
    print_pointer(arg1, 1);
847
    print_syscall_epilogue(name);
848
}
849
#define print_fstat64     print_fstat
850
#endif
851

    
852
#ifdef TARGET_NR_mkdir
853
static void
854
print_mkdir(const struct syscallname *name,
855
    abi_long arg0, abi_long arg1, abi_long arg2,
856
    abi_long arg3, abi_long arg4, abi_long arg5)
857
{
858
    print_syscall_prologue(name);
859
    print_string(arg0, 0);
860
    print_file_mode(arg1, 1);
861
    print_syscall_epilogue(name);
862
}
863
#endif
864

    
865
#ifdef TARGET_NR_mkdirat
866
static void
867
print_mkdirat(const struct syscallname *name,
868
    abi_long arg0, abi_long arg1, abi_long arg2,
869
    abi_long arg3, abi_long arg4, abi_long arg5)
870
{
871
    print_syscall_prologue(name);
872
    print_at_dirfd(arg0, 0);
873
    print_string(arg1, 0);
874
    print_file_mode(arg2, 1);
875
    print_syscall_epilogue(name);
876
}
877
#endif
878

    
879
#ifdef TARGET_NR_rmdir
880
static void
881
print_rmdir(const struct syscallname *name,
882
    abi_long arg0, abi_long arg1, abi_long arg2,
883
    abi_long arg3, abi_long arg4, abi_long arg5)
884
{
885
    print_syscall_prologue(name);
886
    print_string(arg0, 0);
887
    print_syscall_epilogue(name);
888
}
889
#endif
890

    
891
#ifdef TARGET_NR_mknod
892
static void
893
print_mknod(const struct syscallname *name,
894
    abi_long arg0, abi_long arg1, abi_long arg2,
895
    abi_long arg3, abi_long arg4, abi_long arg5)
896
{
897
    int hasdev = (tswapl(arg1) & (S_IFCHR|S_IFBLK));
898

    
899
    print_syscall_prologue(name);
900
    print_string(arg0, 0);
901
    print_file_mode(arg1, (hasdev == 0));
902
    if (hasdev) {
903
        print_raw_param("makedev(%d", major(tswapl(arg2)), 0);
904
        print_raw_param("%d)", minor(tswapl(arg2)), 1);
905
    }
906
    print_syscall_epilogue(name);
907
}
908
#endif
909

    
910
#ifdef TARGET_NR_mknodat
911
static void
912
print_mknodat(const struct syscallname *name,
913
    abi_long arg0, abi_long arg1, abi_long arg2,
914
    abi_long arg3, abi_long arg4, abi_long arg5)
915
{
916
    int hasdev = (tswapl(arg2) & (S_IFCHR|S_IFBLK));
917

    
918
    print_syscall_prologue(name);
919
    print_at_dirfd(arg0, 0);
920
    print_string(arg1, 0);
921
    print_file_mode(arg2, (hasdev == 0));
922
    if (hasdev) {
923
        print_raw_param("makedev(%d", major(tswapl(arg3)), 0);
924
        print_raw_param("%d)", minor(tswapl(arg3)), 1);
925
    }
926
    print_syscall_epilogue(name);
927
}
928
#endif
929

    
930
#ifdef TARGET_NR_mq_open
931
static void
932
print_mq_open(const struct syscallname *name,
933
    abi_long arg0, abi_long arg1, abi_long arg2,
934
    abi_long arg3, abi_long arg4, abi_long arg5)
935
{
936
    int is_creat = (tswapl(arg1) & TARGET_O_CREAT);
937

    
938
    print_syscall_prologue(name);
939
    print_string(arg0, 0);
940
    print_open_flags(arg1, (is_creat == 0));
941
    if (is_creat) {
942
        print_file_mode(arg2, 0);
943
        print_pointer(arg3, 1);
944
    }
945
    print_syscall_epilogue(name);
946
}
947
#endif
948

    
949
#ifdef TARGET_NR_open
950
static void
951
print_open(const struct syscallname *name,
952
    abi_long arg0, abi_long arg1, abi_long arg2,
953
    abi_long arg3, abi_long arg4, abi_long arg5)
954
{
955
    int is_creat = (tswap32(arg1) & TARGET_O_CREAT);
956

    
957
    print_syscall_prologue(name);
958
    print_string(arg0, 0);
959
    print_open_flags(arg1, (is_creat == 0));
960
    if (is_creat)
961
        print_file_mode(arg2, 1);
962
    print_syscall_epilogue(name);
963
}
964
#endif
965

    
966
#ifdef TARGET_NR_openat
967
static void
968
print_openat(const struct syscallname *name,
969
    abi_long arg0, abi_long arg1, abi_long arg2,
970
    abi_long arg3, abi_long arg4, abi_long arg5)
971
{
972
    int is_creat = (tswap32(arg2) & TARGET_O_CREAT);
973

    
974
    print_syscall_prologue(name);
975
    print_at_dirfd(arg0, 0);
976
    print_string(arg1, 0);
977
    print_open_flags(arg2, (is_creat == 0));
978
    if (is_creat)
979
        print_file_mode(arg3, 1);
980
    print_syscall_epilogue(name);
981
}
982
#endif
983

    
984
#ifdef TARGET_NR_mq_unlink
985
static void
986
print_mq_unlink(const struct syscallname *name,
987
    abi_long arg0, abi_long arg1, abi_long arg2,
988
    abi_long arg3, abi_long arg4, abi_long arg5)
989
{
990
    print_syscall_prologue(name);
991
    print_string(arg0, 1);
992
    print_syscall_epilogue(name);
993
}
994
#endif
995

    
996
#if defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)
997
static void
998
print_fstatat64(const struct syscallname *name,
999
    abi_long arg0, abi_long arg1, abi_long arg2,
1000
    abi_long arg3, abi_long arg4, abi_long arg5)
1001
{
1002
    print_syscall_prologue(name);
1003
    print_at_dirfd(arg0, 0);
1004
    print_string(arg1, 0);
1005
    print_pointer(arg2, 0);
1006
    print_flags(at_file_flags, arg3, 1);
1007
    print_syscall_epilogue(name);
1008
}
1009
#define print_newfstatat    print_fstatat64
1010
#endif
1011

    
1012
#ifdef TARGET_NR_readlink
1013
static void
1014
print_readlink(const struct syscallname *name,
1015
    abi_long arg0, abi_long arg1, abi_long arg2,
1016
    abi_long arg3, abi_long arg4, abi_long arg5)
1017
{
1018
    print_syscall_prologue(name);
1019
    print_string(arg0, 0);
1020
    print_pointer(arg1, 0);
1021
    print_raw_param("%u", tswapl(arg2), 1);
1022
    print_syscall_epilogue(name);
1023
}
1024
#endif
1025

    
1026
#ifdef TARGET_NR_readlinkat
1027
static void
1028
print_readlinkat(const struct syscallname *name,
1029
    abi_long arg0, abi_long arg1, abi_long arg2,
1030
    abi_long arg3, abi_long arg4, abi_long arg5)
1031
{
1032
    print_syscall_prologue(name);
1033
    print_at_dirfd(arg0, 0);
1034
    print_string(arg1, 0);
1035
    print_pointer(arg2, 0);
1036
    print_raw_param("%u", tswapl(arg3), 1);
1037
    print_syscall_epilogue(name);
1038
}
1039
#endif
1040

    
1041
#ifdef TARGET_NR_rename
1042
static void
1043
print_rename(const struct syscallname *name,
1044
    abi_long arg0, abi_long arg1, abi_long arg2,
1045
    abi_long arg3, abi_long arg4, abi_long arg5)
1046
{
1047
    print_syscall_prologue(name);
1048
    print_string(arg0, 0);
1049
    print_string(arg1, 1);
1050
    print_syscall_epilogue(name);
1051
}
1052
#endif
1053

    
1054
#ifdef TARGET_NR_renameat
1055
static void
1056
print_renameat(const struct syscallname *name,
1057
    abi_long arg0, abi_long arg1, abi_long arg2,
1058
    abi_long arg3, abi_long arg4, abi_long arg5)
1059
{
1060
    print_syscall_prologue(name);
1061
    print_at_dirfd(arg0, 0);
1062
    print_string(arg1, 0);
1063
    print_at_dirfd(arg2, 0);
1064
    print_string(arg3, 1);
1065
    print_syscall_epilogue(name);
1066
}
1067
#endif
1068

    
1069
#ifdef TARGET_NR_statfs
1070
static void
1071
print_statfs(const struct syscallname *name,
1072
    abi_long arg0, abi_long arg1, abi_long arg2,
1073
    abi_long arg3, abi_long arg4, abi_long arg5)
1074
{
1075
    print_syscall_prologue(name);
1076
    print_string(arg0, 0);
1077
    print_pointer(arg1, 1);
1078
    print_syscall_epilogue(name);
1079
}
1080
#define print_statfs64  print_statfs
1081
#endif
1082

    
1083
#ifdef TARGET_NR_symlink
1084
static void
1085
print_symlink(const struct syscallname *name,
1086
    abi_long arg0, abi_long arg1, abi_long arg2,
1087
    abi_long arg3, abi_long arg4, abi_long arg5)
1088
{
1089
    print_syscall_prologue(name);
1090
    print_string(arg0, 0);
1091
    print_string(arg1, 1);
1092
    print_syscall_epilogue(name);
1093
}
1094
#endif
1095

    
1096
#ifdef TARGET_NR_symlinkat
1097
static void
1098
print_symlinkat(const struct syscallname *name,
1099
    abi_long arg0, abi_long arg1, abi_long arg2,
1100
    abi_long arg3, abi_long arg4, abi_long arg5)
1101
{
1102
    print_syscall_prologue(name);
1103
    print_string(arg0, 0);
1104
    print_at_dirfd(arg1, 0);
1105
    print_string(arg2, 1);
1106
    print_syscall_epilogue(name);
1107
}
1108
#endif
1109

    
1110
#ifdef TARGET_NR_mount
1111
static void
1112
print_mount(const struct syscallname *name,
1113
    abi_long arg0, abi_long arg1, abi_long arg2,
1114
    abi_long arg3, abi_long arg4, abi_long arg5)
1115
{
1116
    print_syscall_prologue(name);
1117
    print_string(arg0, 0);
1118
    print_string(arg1, 0);
1119
    print_string(arg2, 0);
1120
    print_flags(mount_flags, arg3, 0);
1121
    print_pointer(arg4, 1);
1122
    print_syscall_epilogue(name);
1123
}
1124
#endif
1125

    
1126
#ifdef TARGET_NR_umount
1127
static void
1128
print_umount(const struct syscallname *name,
1129
    abi_long arg0, abi_long arg1, abi_long arg2,
1130
    abi_long arg3, abi_long arg4, abi_long arg5)
1131
{
1132
    print_syscall_prologue(name);
1133
    print_string(arg0, 1);
1134
    print_syscall_epilogue(name);
1135
}
1136
#endif
1137

    
1138
#ifdef TARGET_NR_umount2
1139
static void
1140
print_umount2(const struct syscallname *name,
1141
    abi_long arg0, abi_long arg1, abi_long arg2,
1142
    abi_long arg3, abi_long arg4, abi_long arg5)
1143
{
1144
    print_syscall_prologue(name);
1145
    print_string(arg0, 0);
1146
    print_flags(umount2_flags, arg1, 1);
1147
    print_syscall_epilogue(name);
1148
}
1149
#endif
1150

    
1151
#ifdef TARGET_NR_unlink
1152
static void
1153
print_unlink(const struct syscallname *name,
1154
    abi_long arg0, abi_long arg1, abi_long arg2,
1155
    abi_long arg3, abi_long arg4, abi_long arg5)
1156
{
1157
    print_syscall_prologue(name);
1158
    print_string(arg0, 1);
1159
    print_syscall_epilogue(name);
1160
}
1161
#endif
1162

    
1163
#ifdef TARGET_NR_unlinkat
1164
static void
1165
print_unlinkat(const struct syscallname *name,
1166
    abi_long arg0, abi_long arg1, abi_long arg2,
1167
    abi_long arg3, abi_long arg4, abi_long arg5)
1168
{
1169
    print_syscall_prologue(name);
1170
    print_at_dirfd(arg0, 0);
1171
    print_string(arg1, 0);
1172
    print_flags(unlinkat_flags, arg2, 1);
1173
    print_syscall_epilogue(name);
1174
}
1175
#endif
1176

    
1177
#ifdef TARGET_NR_utime
1178
static void
1179
print_utime(const struct syscallname *name,
1180
    abi_long arg0, abi_long arg1, abi_long arg2,
1181
    abi_long arg3, abi_long arg4, abi_long arg5)
1182
{
1183
    print_syscall_prologue(name);
1184
    print_string(arg0, 0);
1185
    print_pointer(arg1, 1);
1186
    print_syscall_epilogue(name);
1187
}
1188
#endif
1189

    
1190
#ifdef TARGET_NR_utimes
1191
static void
1192
print_utimes(const struct syscallname *name,
1193
    abi_long arg0, abi_long arg1, abi_long arg2,
1194
    abi_long arg3, abi_long arg4, abi_long arg5)
1195
{
1196
    print_syscall_prologue(name);
1197
    print_string(arg0, 0);
1198
    print_pointer(arg1, 1);
1199
    print_syscall_epilogue(name);
1200
}
1201
#endif
1202

    
1203
#ifdef TARGET_NR_utimensat
1204
static void
1205
print_utimensat(const struct syscallname *name,
1206
    abi_long arg0, abi_long arg1, abi_long arg2,
1207
    abi_long arg3, abi_long arg4, abi_long arg5)
1208
{
1209
    print_syscall_prologue(name);
1210
    print_at_dirfd(arg0, 0);
1211
    print_string(arg1, 0);
1212
    print_pointer(arg2, 0);
1213
    print_flags(at_file_flags, arg3, 1);
1214
    print_syscall_epilogue(name);
1215
}
1216
#endif
1217

    
1218
#if defined(TARGET_NR_mmap) || defined(TARGET_NR_mmap2)
1219
static void
1220
print_mmap(const struct syscallname *name,
1221
    abi_long arg0, abi_long arg1, abi_long arg2,
1222
    abi_long arg3, abi_long arg4, abi_long arg5)
1223
{
1224
    print_syscall_prologue(name);
1225
    print_pointer(arg0, 0);
1226
    print_raw_param("%d", tswapl(arg1), 0);
1227
    print_flags(mmap_prot_flags, arg2, 0);
1228
    print_flags(mmap_flags, arg3, 0);
1229
    print_raw_param("%d", tswapl(arg4), 0);
1230
    print_raw_param("%#x", tswapl(arg5), 1);
1231
    print_syscall_epilogue(name);
1232
}
1233
#define print_mmap2     print_mmap
1234
#endif
1235

    
1236
#ifdef TARGET_NR_mprotect
1237
static void
1238
print_mprotect(const struct syscallname *name,
1239
    abi_long arg0, abi_long arg1, abi_long arg2,
1240
    abi_long arg3, abi_long arg4, abi_long arg5)
1241
{
1242
    print_syscall_prologue(name);
1243
    print_pointer(arg0, 0);
1244
    print_raw_param("%d", tswapl(arg1), 0);
1245
    print_flags(mmap_prot_flags, arg2, 1);
1246
    print_syscall_epilogue(name);
1247
}
1248
#endif
1249

    
1250
#ifdef TARGET_NR_munmap
1251
static void
1252
print_munmap(const struct syscallname *name,
1253
    abi_long arg0, abi_long arg1, abi_long arg2,
1254
    abi_long arg3, abi_long arg4, abi_long arg5)
1255
{
1256
    print_syscall_prologue(name);
1257
    print_pointer(arg0, 0);
1258
    print_raw_param("%d", tswapl(arg1), 1);
1259
    print_syscall_epilogue(name);
1260
}
1261
#endif
1262

    
1263
#ifdef TARGET_NR_futex
1264
static void print_futex_op(abi_long tflag, int last)
1265
{
1266
#define print_op(val) \
1267
if( cmd == val ) { \
1268
    gemu_log(#val); \
1269
    return; \
1270
}
1271

    
1272
    int cmd = (int)tswap32(tflag);
1273
#ifdef FUTEX_PRIVATE_FLAG
1274
    if (cmd & FUTEX_PRIVATE_FLAG) {
1275
        gemu_log("FUTEX_PRIVATE_FLAG|");
1276
        cmd &= ~FUTEX_PRIVATE_FLAG;
1277
    }
1278
#endif
1279
    print_op(FUTEX_WAIT)
1280
    print_op(FUTEX_WAKE)
1281
    print_op(FUTEX_FD)
1282
    print_op(FUTEX_REQUEUE)
1283
    print_op(FUTEX_CMP_REQUEUE)
1284
    print_op(FUTEX_WAKE_OP)
1285
    print_op(FUTEX_LOCK_PI)
1286
    print_op(FUTEX_UNLOCK_PI)
1287
    print_op(FUTEX_TRYLOCK_PI)
1288
#ifdef FUTEX_WAIT_BITSET
1289
    print_op(FUTEX_WAIT_BITSET)
1290
#endif
1291
#ifdef FUTEX_WAKE_BITSET
1292
    print_op(FUTEX_WAKE_BITSET)
1293
#endif
1294
    /* unknown values */
1295
    gemu_log("%d",cmd);
1296
}
1297

    
1298
static void
1299
print_futex(const struct syscallname *name,
1300
    abi_long arg0, abi_long arg1, abi_long arg2,
1301
    abi_long arg3, abi_long arg4, abi_long arg5)
1302
{
1303
    print_syscall_prologue(name);
1304
    print_pointer(arg0, 0);
1305
    print_futex_op(arg1, 0);
1306
    print_raw_param(",%d", tswapl(arg2), 0);
1307
    print_pointer(arg3, 0); /* struct timespec */
1308
    print_pointer(arg4, 0);
1309
    print_raw_param("%d", tswapl(arg4), 1);
1310
    print_syscall_epilogue(name);
1311
}
1312
#endif
1313

    
1314
/*
1315
 * An array of all of the syscalls we know about
1316
 */
1317

    
1318
static const struct syscallname scnames[] = {
1319
#include "strace.list"
1320
};
1321

    
1322
static int nsyscalls = ARRAY_SIZE(scnames);
1323

    
1324
/*
1325
 * The public interface to this module.
1326
 */
1327
void
1328
print_syscall(int num,
1329
              abi_long arg1, abi_long arg2, abi_long arg3,
1330
              abi_long arg4, abi_long arg5, abi_long arg6)
1331
{
1332
    int i;
1333
    const char *format="%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ")";
1334

    
1335
    gemu_log("%d ", getpid() );
1336

    
1337
    for(i=0;i<nsyscalls;i++)
1338
        if( scnames[i].nr == num ) {
1339
            if( scnames[i].call != NULL ) {
1340
                scnames[i].call(&scnames[i],arg1,arg2,arg3,arg4,arg5,arg6);
1341
            } else {
1342
                /* XXX: this format system is broken because it uses
1343
                   host types and host pointers for strings */
1344
                if( scnames[i].format != NULL )
1345
                    format = scnames[i].format;
1346
                gemu_log(format,scnames[i].name, arg1,arg2,arg3,arg4,arg5,arg6);
1347
            }
1348
            return;
1349
        }
1350
    gemu_log("Unknown syscall %d\n", num);
1351
}
1352

    
1353

    
1354
void
1355
print_syscall_ret(int num, abi_long ret)
1356
{
1357
    int i;
1358

    
1359
    for(i=0;i<nsyscalls;i++)
1360
        if( scnames[i].nr == num ) {
1361
            if( scnames[i].result != NULL ) {
1362
                scnames[i].result(&scnames[i],ret);
1363
            } else {
1364
                if( ret < 0 ) {
1365
                    gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n", -ret, target_strerror(-ret));
1366
                } else {
1367
                    gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
1368
                }
1369
            }
1370
            break;
1371
        }
1372
}