Statistics
| Branch: | Revision:

root / linux-user / strace.c @ 9e0b74a4

History | View | Annotate | Download (33.3 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
#ifdef MAP_LOCKED
402
    FLAG_TARGET(MAP_LOCKED),
403
#endif
404
#ifdef MAP_NONBLOCK
405
    FLAG_TARGET(MAP_NONBLOCK),
406
#endif
407
    FLAG_TARGET(MAP_NORESERVE),
408
#ifdef MAP_POPULATE
409
    FLAG_TARGET(MAP_POPULATE),
410
#endif
411
    FLAG_END,
412
};
413

    
414
UNUSED static struct flags fcntl_flags[] = {
415
    FLAG_TARGET(F_DUPFD),
416
    FLAG_TARGET(F_GETFD),
417
    FLAG_TARGET(F_SETFD),
418
    FLAG_TARGET(F_GETFL),
419
    FLAG_TARGET(F_SETFL),
420
    FLAG_TARGET(F_GETLK),
421
    FLAG_TARGET(F_SETLK),
422
    FLAG_TARGET(F_SETLKW),
423
    FLAG_END,
424
};
425

    
426
/*
427
 * print_xxx utility functions.  These are used to print syscall
428
 * parameters in certain format.  All of these have parameter
429
 * named 'last'.  This parameter is used to add comma to output
430
 * when last == 0.
431
 */
432

    
433
static const char *
434
get_comma(int last)
435
{
436
    return ((last) ? "" : ",");
437
}
438

    
439
static void
440
print_flags(const struct flags *f, abi_long tflags, int last)
441
{
442
    const char *sep = "";
443
    int flags;
444
    int n;
445

    
446
    flags = (int)tswap32(tflags);
447

    
448
    if ((flags == 0) && (f->f_value == 0)) {
449
        gemu_log("%s%s", f->f_string, get_comma(last));
450
        return;
451
    }
452
    for (n = 0; f->f_string != NULL; f++) {
453
        if ((f->f_value != 0) && ((flags & f->f_value) == f->f_value)) {
454
            gemu_log("%s%s", sep, f->f_string);
455
            flags &= ~f->f_value;
456
            sep = "|";
457
            n++;
458
        }
459
    }
460

    
461
    if (n > 0) {
462
        /* print rest of the flags as numeric */
463
        if (flags != 0) {
464
            gemu_log("%s%#x%s", sep, flags, get_comma(last));
465
        } else {
466
            gemu_log("%s", get_comma(last));
467
        }
468
    } else {
469
        /* no string version of flags found, print them in hex then */
470
        gemu_log("%#x%s", flags, get_comma(last));
471
    }
472
}
473

    
474
static void
475
print_at_dirfd(abi_long tdirfd, int last)
476
{
477
    int dirfd = tswap32(tdirfd);
478

    
479
#ifdef AT_FDCWD
480
    if (dirfd == AT_FDCWD) {
481
        gemu_log("AT_FDCWD%s", get_comma(last));
482
        return;
483
    }
484
#endif
485
    gemu_log("%d%s", dirfd, get_comma(last));
486
}
487

    
488
static void
489
print_file_mode(abi_long tmode, int last)
490
{
491
    const char *sep = "";
492
    const struct flags *m;
493
    mode_t mode = (mode_t)tswap32(tmode);
494

    
495
    for (m = &mode_flags[0]; m->f_string != NULL; m++) {
496
        if ((m->f_value & mode) == m->f_value) {
497
            gemu_log("%s%s", m->f_string, sep);
498
            sep = "|";
499
            mode &= ~m->f_value;
500
            break;
501
        }
502
    }
503

    
504
    mode &= ~S_IFMT;
505
    /* print rest of the mode as octal */
506
    if (mode != 0)
507
        gemu_log("%s%#o", sep, mode);
508

    
509
    gemu_log("%s", get_comma(last));
510
}
511

    
512
static void
513
print_open_flags(abi_long tflags, int last)
514
{
515
    int flags = tswap32(tflags);
516

    
517
    print_flags(open_access_flags, flags & TARGET_O_ACCMODE, 1);
518
    flags &= ~TARGET_O_ACCMODE;
519
    if (flags == 0) {
520
        gemu_log("%s", get_comma(last));
521
        return;
522
    }
523
    gemu_log("|");
524
    print_flags(open_flags, flags, last);
525
}
526

    
527
static void
528
print_syscall_prologue(const struct syscallname *sc)
529
{
530
    gemu_log("%s(", sc->name);
531
}
532

    
533
/*ARGSUSED*/
534
static void
535
print_syscall_epilogue(const struct syscallname *sc)
536
{
537
    (void)sc;
538
    gemu_log(")");
539
}
540

    
541
static void
542
print_string(abi_long addr, int last)
543
{
544
    char *s;
545

    
546
    if ((s = lock_user_string(addr)) != NULL) {
547
        gemu_log("\"%s\"%s", s, get_comma(last));
548
        unlock_user(s, addr, 0);
549
    } else {
550
        /* can't get string out of it, so print it as pointer */
551
        print_pointer(addr, last);
552
    }
553
}
554

    
555
/*
556
 * Prints out raw parameter using given format.  Caller needs
557
 * to do byte swapping if needed.
558
 */
559
static void
560
print_raw_param(const char *fmt, abi_long param, int last)
561
{
562
    char format[64];
563

    
564
    (void) snprintf(format, sizeof (format), "%s%s", fmt, get_comma(last));
565
    gemu_log(format, param);
566
}
567

    
568
static void
569
print_pointer(abi_long p, int last)
570
{
571
    if (p == 0)
572
        gemu_log("NULL%s", get_comma(last));
573
    else
574
        gemu_log("0x" TARGET_ABI_FMT_lx "%s", p, get_comma(last));
575
}
576

    
577
/*
578
 * Reads 32-bit (int) number from guest address space from
579
 * address 'addr' and prints it.
580
 */
581
static void
582
print_number(abi_long addr, int last)
583
{
584
    if (addr == 0) {
585
        gemu_log("NULL%s", get_comma(last));
586
    } else {
587
        int num;
588

    
589
        get_user_s32(num, addr);
590
        gemu_log("[%d]%s", num, get_comma(last));
591
    }
592
}
593

    
594
static void
595
print_timeval(abi_ulong tv_addr, int last)
596
{
597
    if( tv_addr ) {
598
        struct target_timeval *tv;
599

    
600
        tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1);
601
        if (!tv)
602
            return;
603
        gemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s",
604
            tv->tv_sec, tv->tv_usec, get_comma(last));
605
        unlock_user(tv, tv_addr, 0);
606
    } else
607
        gemu_log("NULL%s", get_comma(last));
608
}
609

    
610
#undef UNUSED
611

    
612
#ifdef TARGET_NR_accept
613
static void
614
print_accept(const struct syscallname *name,
615
    abi_long arg0, abi_long arg1, abi_long arg2,
616
    abi_long arg3, abi_long arg4, abi_long arg5)
617
{
618
    print_syscall_prologue(name);
619
    print_raw_param("%d", tswap32(arg0), 0);
620
    print_pointer(arg1, 0);
621
    print_number(arg2, 1);
622
    print_syscall_epilogue(name);
623
}
624
#endif
625

    
626
#ifdef TARGET_NR_access
627
static void
628
print_access(const struct syscallname *name,
629
    abi_long arg0, abi_long arg1, abi_long arg2,
630
    abi_long arg3, abi_long arg4, abi_long arg5)
631
{
632
    print_syscall_prologue(name);
633
    print_string(arg0, 0);
634
    print_flags(access_flags, arg1, 1);
635
    print_syscall_epilogue(name);
636
}
637
#endif
638

    
639
#ifdef TARGET_NR_brk
640
static void
641
print_brk(const struct syscallname *name,
642
    abi_long arg0, abi_long arg1, abi_long arg2,
643
    abi_long arg3, abi_long arg4, abi_long arg5)
644
{
645
    print_syscall_prologue(name);
646
    print_pointer(arg0, 1);
647
    print_syscall_epilogue(name);
648
}
649
#endif
650

    
651
#ifdef TARGET_NR_chdir
652
static void
653
print_chdir(const struct syscallname *name,
654
    abi_long arg0, abi_long arg1, abi_long arg2,
655
    abi_long arg3, abi_long arg4, abi_long arg5)
656
{
657
    print_syscall_prologue(name);
658
    print_string(arg0, 1);
659
    print_syscall_epilogue(name);
660
}
661
#endif
662

    
663
#ifdef TARGET_NR_chmod
664
static void
665
print_chmod(const struct syscallname *name,
666
    abi_long arg0, abi_long arg1, abi_long arg2,
667
    abi_long arg3, abi_long arg4, abi_long arg5)
668
{
669
    print_syscall_prologue(name);
670
    print_string(arg0, 0);
671
    print_file_mode(arg1, 1);
672
    print_syscall_epilogue(name);
673
}
674
#endif
675

    
676
#ifdef TARGET_NR_creat
677
static void
678
print_creat(const struct syscallname *name,
679
    abi_long arg0, abi_long arg1, abi_long arg2,
680
    abi_long arg3, abi_long arg4, abi_long arg5)
681
{
682
    print_syscall_prologue(name);
683
    print_string(arg0, 0);
684
    print_file_mode(arg1, 1);
685
    print_syscall_epilogue(name);
686
}
687
#endif
688

    
689
#ifdef TARGET_NR_execv
690
static void
691
print_execv(const struct syscallname *name,
692
    abi_long arg0, abi_long arg1, abi_long arg2,
693
    abi_long arg3, abi_long arg4, abi_long arg5)
694
{
695
    print_syscall_prologue(name);
696
    print_string(arg0, 0);
697
    print_raw_param("0x" TARGET_ABI_FMT_lx, tswapl(arg1), 1);
698
    print_syscall_epilogue(name);
699
}
700
#endif
701

    
702
#ifdef TARGET_NR_faccessat
703
static void
704
print_faccessat(const struct syscallname *name,
705
    abi_long arg0, abi_long arg1, abi_long arg2,
706
    abi_long arg3, abi_long arg4, abi_long arg5)
707
{
708
    print_syscall_prologue(name);
709
    print_at_dirfd(arg0, 0);
710
    print_string(arg1, 0);
711
    print_flags(access_flags, arg2, 0);
712
    print_flags(at_file_flags, arg3, 1);
713
    print_syscall_epilogue(name);
714
}
715
#endif
716

    
717
#ifdef TARGET_NR_fchmodat
718
static void
719
print_fchmodat(const struct syscallname *name,
720
    abi_long arg0, abi_long arg1, abi_long arg2,
721
    abi_long arg3, abi_long arg4, abi_long arg5)
722
{
723
    print_syscall_prologue(name);
724
    print_at_dirfd(arg0, 0);
725
    print_string(arg1, 0);
726
    print_file_mode(arg2, 0);
727
    print_flags(at_file_flags, arg3, 1);
728
    print_syscall_epilogue(name);
729
}
730
#endif
731

    
732
#ifdef TARGET_NR_fchownat
733
static void
734
print_fchownat(const struct syscallname *name,
735
    abi_long arg0, abi_long arg1, abi_long arg2,
736
    abi_long arg3, abi_long arg4, abi_long arg5)
737
{
738
    print_syscall_prologue(name);
739
    print_at_dirfd(arg0, 0);
740
    print_string(arg1, 0);
741
#ifdef USE_UID16
742
    print_raw_param("%d", tswap16(arg2), 0);
743
    print_raw_param("%d", tswap16(arg3), 0);
744
#else
745
    print_raw_param("%d", tswap32(arg2), 0);
746
    print_raw_param("%d", tswap32(arg3), 0);
747
#endif
748
    print_flags(at_file_flags, arg4, 1);
749
    print_syscall_epilogue(name);
750
}
751
#endif
752

    
753
#if defined(TARGET_NR_fcntl) || defined(TARGET_NR_fcntl64)
754
static void
755
print_fcntl(const struct syscallname *name,
756
    abi_long arg0, abi_long arg1, abi_long arg2,
757
    abi_long arg3, abi_long arg4, abi_long arg5)
758
{
759
    print_syscall_prologue(name);
760
    print_raw_param("%d", tswap32(arg0), 0);
761
    print_flags(fcntl_flags, arg1, 0);
762
    /*
763
     * TODO: check flags and print following argument only
764
     *       when needed.
765
     */
766
    print_pointer(arg2, 1);
767
    print_syscall_epilogue(name);
768
}
769
#define print_fcntl64   print_fcntl
770
#endif
771

    
772

    
773
#ifdef TARGET_NR_futimesat
774
static void
775
print_futimesat(const struct syscallname *name,
776
    abi_long arg0, abi_long arg1, abi_long arg2,
777
    abi_long arg3, abi_long arg4, abi_long arg5)
778
{
779
    print_syscall_prologue(name);
780
    print_at_dirfd(arg0, 0);
781
    print_string(arg1, 0);
782
    print_timeval(arg2, 0);
783
    print_timeval(arg2 + sizeof (struct target_timeval), 1);
784
    print_syscall_epilogue(name);
785
}
786
#endif
787

    
788
#ifdef TARGET_NR_link
789
static void
790
print_link(const struct syscallname *name,
791
    abi_long arg0, abi_long arg1, abi_long arg2,
792
    abi_long arg3, abi_long arg4, abi_long arg5)
793
{
794
    print_syscall_prologue(name);
795
    print_string(arg0, 0);
796
    print_string(arg1, 1);
797
    print_syscall_epilogue(name);
798
}
799
#endif
800

    
801
#ifdef TARGET_NR_linkat
802
static void
803
print_linkat(const struct syscallname *name,
804
    abi_long arg0, abi_long arg1, abi_long arg2,
805
    abi_long arg3, abi_long arg4, abi_long arg5)
806
{
807
    print_syscall_prologue(name);
808
    print_at_dirfd(arg0, 0);
809
    print_string(arg1, 0);
810
    print_at_dirfd(arg2, 0);
811
    print_string(arg3, 0);
812
    print_flags(at_file_flags, arg4, 1);
813
    print_syscall_epilogue(name);
814
}
815
#endif
816

    
817
#if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) || \
818
    defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64)
819
static void
820
print_stat(const struct syscallname *name,
821
    abi_long arg0, abi_long arg1, abi_long arg2,
822
    abi_long arg3, abi_long arg4, abi_long arg5)
823
{
824
    print_syscall_prologue(name);
825
    print_string(arg0, 0);
826
    print_pointer(arg1, 1);
827
    print_syscall_epilogue(name);
828
}
829
#define print_lstat     print_stat
830
#define print_stat64        print_stat
831
#define print_lstat64   print_stat
832
#endif
833

    
834
#if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
835
static void
836
print_fstat(const struct syscallname *name,
837
    abi_long arg0, abi_long arg1, abi_long arg2,
838
    abi_long arg3, abi_long arg4, abi_long arg5)
839
{
840
    print_syscall_prologue(name);
841
    print_raw_param("%d", tswap32(arg0), 0);
842
    print_pointer(arg1, 1);
843
    print_syscall_epilogue(name);
844
}
845
#define print_fstat64     print_fstat
846
#endif
847

    
848
#ifdef TARGET_NR_mkdir
849
static void
850
print_mkdir(const struct syscallname *name,
851
    abi_long arg0, abi_long arg1, abi_long arg2,
852
    abi_long arg3, abi_long arg4, abi_long arg5)
853
{
854
    print_syscall_prologue(name);
855
    print_string(arg0, 0);
856
    print_file_mode(arg1, 1);
857
    print_syscall_epilogue(name);
858
}
859
#endif
860

    
861
#ifdef TARGET_NR_mkdirat
862
static void
863
print_mkdirat(const struct syscallname *name,
864
    abi_long arg0, abi_long arg1, abi_long arg2,
865
    abi_long arg3, abi_long arg4, abi_long arg5)
866
{
867
    print_syscall_prologue(name);
868
    print_at_dirfd(arg0, 0);
869
    print_string(arg1, 0);
870
    print_file_mode(arg2, 1);
871
    print_syscall_epilogue(name);
872
}
873
#endif
874

    
875
#ifdef TARGET_NR_mknod
876
static void
877
print_mknod(const struct syscallname *name,
878
    abi_long arg0, abi_long arg1, abi_long arg2,
879
    abi_long arg3, abi_long arg4, abi_long arg5)
880
{
881
    int hasdev = (tswapl(arg1) & (S_IFCHR|S_IFBLK));
882

    
883
    print_syscall_prologue(name);
884
    print_string(arg0, 0);
885
    print_file_mode(arg1, (hasdev == 0));
886
    if (hasdev) {
887
        print_raw_param("makedev(%d", major(tswapl(arg2)), 0);
888
        print_raw_param("%d)", minor(tswapl(arg2)), 1);
889
    }
890
    print_syscall_epilogue(name);
891
}
892
#endif
893

    
894
#ifdef TARGET_NR_mknodat
895
static void
896
print_mknodat(const struct syscallname *name,
897
    abi_long arg0, abi_long arg1, abi_long arg2,
898
    abi_long arg3, abi_long arg4, abi_long arg5)
899
{
900
    int hasdev = (tswapl(arg2) & (S_IFCHR|S_IFBLK));
901

    
902
    print_syscall_prologue(name);
903
    print_at_dirfd(arg0, 0);
904
    print_string(arg1, 0);
905
    print_file_mode(arg2, (hasdev == 0));
906
    if (hasdev) {
907
        print_raw_param("makedev(%d", major(tswapl(arg3)), 0);
908
        print_raw_param("%d)", minor(tswapl(arg3)), 1);
909
    }
910
    print_syscall_epilogue(name);
911
}
912
#endif
913

    
914
#ifdef TARGET_NR_mq_open
915
static void
916
print_mq_open(const struct syscallname *name,
917
    abi_long arg0, abi_long arg1, abi_long arg2,
918
    abi_long arg3, abi_long arg4, abi_long arg5)
919
{
920
    int is_creat = (tswapl(arg1) & TARGET_O_CREAT);
921

    
922
    print_syscall_prologue(name);
923
    print_string(arg0, 0);
924
    print_open_flags(arg1, (is_creat == 0));
925
    if (is_creat) {
926
        print_file_mode(arg2, 0);
927
        print_pointer(arg3, 1);
928
    }
929
    print_syscall_epilogue(name);
930
}
931
#endif
932

    
933
#ifdef TARGET_NR_open
934
static void
935
print_open(const struct syscallname *name,
936
    abi_long arg0, abi_long arg1, abi_long arg2,
937
    abi_long arg3, abi_long arg4, abi_long arg5)
938
{
939
    int is_creat = (tswap32(arg1) & TARGET_O_CREAT);
940

    
941
    print_syscall_prologue(name);
942
    print_string(arg0, 0);
943
    print_open_flags(arg1, (is_creat == 0));
944
    if (is_creat)
945
        print_file_mode(arg2, 1);
946
    print_syscall_epilogue(name);
947
}
948
#endif
949

    
950
#ifdef TARGET_NR_openat
951
static void
952
print_openat(const struct syscallname *name,
953
    abi_long arg0, abi_long arg1, abi_long arg2,
954
    abi_long arg3, abi_long arg4, abi_long arg5)
955
{
956
    int is_creat = (tswap32(arg2) & TARGET_O_CREAT);
957

    
958
    print_syscall_prologue(name);
959
    print_at_dirfd(arg0, 0);
960
    print_string(arg1, 0);
961
    print_open_flags(arg2, (is_creat == 0));
962
    if (is_creat)
963
        print_file_mode(arg3, 1);
964
    print_syscall_epilogue(name);
965
}
966
#endif
967

    
968
#ifdef TARGET_NR_mq_unlink
969
static void
970
print_mq_unlink(const struct syscallname *name,
971
    abi_long arg0, abi_long arg1, abi_long arg2,
972
    abi_long arg3, abi_long arg4, abi_long arg5)
973
{
974
    print_syscall_prologue(name);
975
    print_string(arg0, 1);
976
    print_syscall_epilogue(name);
977
}
978
#endif
979

    
980
#if defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)
981
static void
982
print_fstatat64(const struct syscallname *name,
983
    abi_long arg0, abi_long arg1, abi_long arg2,
984
    abi_long arg3, abi_long arg4, abi_long arg5)
985
{
986
    print_syscall_prologue(name);
987
    print_at_dirfd(arg0, 0);
988
    print_string(arg1, 0);
989
    print_pointer(arg2, 0);
990
    print_flags(at_file_flags, arg3, 1);
991
    print_syscall_epilogue(name);
992
}
993
#define print_newfstatat    print_fstatat64
994
#endif
995

    
996
#ifdef TARGET_NR_readlink
997
static void
998
print_readlink(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_string(arg0, 0);
1004
    print_pointer(arg1, 0);
1005
    print_raw_param("%u", tswapl(arg2), 1);
1006
    print_syscall_epilogue(name);
1007
}
1008
#endif
1009

    
1010
#ifdef TARGET_NR_readlinkat
1011
static void
1012
print_readlinkat(const struct syscallname *name,
1013
    abi_long arg0, abi_long arg1, abi_long arg2,
1014
    abi_long arg3, abi_long arg4, abi_long arg5)
1015
{
1016
    print_syscall_prologue(name);
1017
    print_at_dirfd(arg0, 0);
1018
    print_string(arg1, 0);
1019
    print_pointer(arg2, 0);
1020
    print_raw_param("%u", tswapl(arg3), 1);
1021
    print_syscall_epilogue(name);
1022
}
1023
#endif
1024

    
1025
#ifdef TARGET_NR_rename
1026
static void
1027
print_rename(const struct syscallname *name,
1028
    abi_long arg0, abi_long arg1, abi_long arg2,
1029
    abi_long arg3, abi_long arg4, abi_long arg5)
1030
{
1031
    print_syscall_prologue(name);
1032
    print_string(arg0, 0);
1033
    print_string(arg1, 1);
1034
    print_syscall_epilogue(name);
1035
}
1036
#endif
1037

    
1038
#ifdef TARGET_NR_renameat
1039
static void
1040
print_renameat(const struct syscallname *name,
1041
    abi_long arg0, abi_long arg1, abi_long arg2,
1042
    abi_long arg3, abi_long arg4, abi_long arg5)
1043
{
1044
    print_syscall_prologue(name);
1045
    print_at_dirfd(arg0, 0);
1046
    print_string(arg1, 0);
1047
    print_at_dirfd(arg2, 0);
1048
    print_string(arg3, 1);
1049
    print_syscall_epilogue(name);
1050
}
1051
#endif
1052

    
1053
#ifdef TARGET_NR_statfs
1054
static void
1055
print_statfs(const struct syscallname *name,
1056
    abi_long arg0, abi_long arg1, abi_long arg2,
1057
    abi_long arg3, abi_long arg4, abi_long arg5)
1058
{
1059
    print_syscall_prologue(name);
1060
    print_string(arg0, 0);
1061
    print_pointer(arg1, 1);
1062
    print_syscall_epilogue(name);
1063
}
1064
#define print_statfs64  print_statfs
1065
#endif
1066

    
1067
#ifdef TARGET_NR_symlink
1068
static void
1069
print_symlink(const struct syscallname *name,
1070
    abi_long arg0, abi_long arg1, abi_long arg2,
1071
    abi_long arg3, abi_long arg4, abi_long arg5)
1072
{
1073
    print_syscall_prologue(name);
1074
    print_string(arg0, 0);
1075
    print_string(arg1, 1);
1076
    print_syscall_epilogue(name);
1077
}
1078
#endif
1079

    
1080
#ifdef TARGET_NR_symlinkat
1081
static void
1082
print_symlinkat(const struct syscallname *name,
1083
    abi_long arg0, abi_long arg1, abi_long arg2,
1084
    abi_long arg3, abi_long arg4, abi_long arg5)
1085
{
1086
    print_syscall_prologue(name);
1087
    print_string(arg0, 0);
1088
    print_at_dirfd(arg1, 0);
1089
    print_string(arg2, 1);
1090
    print_syscall_epilogue(name);
1091
}
1092
#endif
1093

    
1094
#ifdef TARGET_NR_mount
1095
static void
1096
print_mount(const struct syscallname *name,
1097
    abi_long arg0, abi_long arg1, abi_long arg2,
1098
    abi_long arg3, abi_long arg4, abi_long arg5)
1099
{
1100
    print_syscall_prologue(name);
1101
    print_string(arg0, 0);
1102
    print_string(arg1, 0);
1103
    print_string(arg2, 0);
1104
    print_flags(mount_flags, arg3, 0);
1105
    print_pointer(arg4, 1);
1106
    print_syscall_epilogue(name);
1107
}
1108
#endif
1109

    
1110
#ifdef TARGET_NR_umount
1111
static void
1112
print_umount(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, 1);
1118
    print_syscall_epilogue(name);
1119
}
1120
#endif
1121

    
1122
#ifdef TARGET_NR_umount2
1123
static void
1124
print_umount2(const struct syscallname *name,
1125
    abi_long arg0, abi_long arg1, abi_long arg2,
1126
    abi_long arg3, abi_long arg4, abi_long arg5)
1127
{
1128
    print_syscall_prologue(name);
1129
    print_string(arg0, 0);
1130
    print_flags(umount2_flags, arg1, 1);
1131
    print_syscall_epilogue(name);
1132
}
1133
#endif
1134

    
1135
#ifdef TARGET_NR_unlink
1136
static void
1137
print_unlink(const struct syscallname *name,
1138
    abi_long arg0, abi_long arg1, abi_long arg2,
1139
    abi_long arg3, abi_long arg4, abi_long arg5)
1140
{
1141
    print_syscall_prologue(name);
1142
    print_string(arg0, 1);
1143
    print_syscall_epilogue(name);
1144
}
1145
#endif
1146

    
1147
#ifdef TARGET_NR_unlinkat
1148
static void
1149
print_unlinkat(const struct syscallname *name,
1150
    abi_long arg0, abi_long arg1, abi_long arg2,
1151
    abi_long arg3, abi_long arg4, abi_long arg5)
1152
{
1153
    print_syscall_prologue(name);
1154
    print_at_dirfd(arg0, 0);
1155
    print_string(arg1, 0);
1156
    print_flags(unlinkat_flags, arg2, 1);
1157
    print_syscall_epilogue(name);
1158
}
1159
#endif
1160

    
1161
#ifdef TARGET_NR_utime
1162
static void
1163
print_utime(const struct syscallname *name,
1164
    abi_long arg0, abi_long arg1, abi_long arg2,
1165
    abi_long arg3, abi_long arg4, abi_long arg5)
1166
{
1167
    print_syscall_prologue(name);
1168
    print_string(arg0, 0);
1169
    print_pointer(arg1, 1);
1170
    print_syscall_epilogue(name);
1171
}
1172
#endif
1173

    
1174
#ifdef TARGET_NR_utimes
1175
static void
1176
print_utimes(const struct syscallname *name,
1177
    abi_long arg0, abi_long arg1, abi_long arg2,
1178
    abi_long arg3, abi_long arg4, abi_long arg5)
1179
{
1180
    print_syscall_prologue(name);
1181
    print_string(arg0, 0);
1182
    print_pointer(arg1, 1);
1183
    print_syscall_epilogue(name);
1184
}
1185
#endif
1186

    
1187
#ifdef TARGET_NR_utimensat
1188
static void
1189
print_utimensat(const struct syscallname *name,
1190
    abi_long arg0, abi_long arg1, abi_long arg2,
1191
    abi_long arg3, abi_long arg4, abi_long arg5)
1192
{
1193
    print_syscall_prologue(name);
1194
    print_at_dirfd(arg0, 0);
1195
    print_string(arg1, 0);
1196
    print_pointer(arg2, 0);
1197
    print_flags(at_file_flags, arg3, 1);
1198
    print_syscall_epilogue(name);
1199
}
1200
#endif
1201

    
1202
#ifdef TARGET_NR_mmap
1203
static void
1204
print_mmap(const struct syscallname *name,
1205
    abi_long arg0, abi_long arg1, abi_long arg2,
1206
    abi_long arg3, abi_long arg4, abi_long arg5)
1207
{
1208
    print_syscall_prologue(name);
1209
    print_pointer(arg0, 0);
1210
    print_raw_param("%d", tswapl(arg1), 0);
1211
    print_flags(mmap_prot_flags, arg2, 0);
1212
    print_flags(mmap_flags, arg3, 0);
1213
    print_raw_param("%d", tswapl(arg4), 0);
1214
    print_raw_param("%#x", tswapl(arg5), 1);
1215
    print_syscall_epilogue(name);
1216
}
1217
#define print_mmap2     print_mmap
1218
#endif
1219

    
1220
#ifdef TARGET_NR_mprotect
1221
static void
1222
print_mprotect(const struct syscallname *name,
1223
    abi_long arg0, abi_long arg1, abi_long arg2,
1224
    abi_long arg3, abi_long arg4, abi_long arg5)
1225
{
1226
    print_syscall_prologue(name);
1227
    print_pointer(arg0, 0);
1228
    print_raw_param("%d", tswapl(arg1), 0);
1229
    print_flags(mmap_prot_flags, arg2, 1);
1230
    print_syscall_epilogue(name);
1231
}
1232
#endif
1233

    
1234
#ifdef TARGET_NR_munmap
1235
static void
1236
print_munmap(const struct syscallname *name,
1237
    abi_long arg0, abi_long arg1, abi_long arg2,
1238
    abi_long arg3, abi_long arg4, abi_long arg5)
1239
{
1240
    print_syscall_prologue(name);
1241
    print_pointer(arg0, 0);
1242
    print_raw_param("%d", tswapl(arg1), 1);
1243
    print_syscall_epilogue(name);
1244
}
1245
#endif
1246

    
1247
#ifdef TARGET_NR_futex
1248
static void print_futex_op(abi_long tflag, int last)
1249
{
1250
#define print_op(val) \
1251
if( cmd == val ) { \
1252
    gemu_log(#val); \
1253
    return; \
1254
}
1255

    
1256
    int cmd = (int)tswap32(tflag);
1257
#ifdef FUTEX_PRIVATE_FLAG
1258
    if (cmd & FUTEX_PRIVATE_FLAG) {
1259
        gemu_log("FUTEX_PRIVATE_FLAG|");
1260
        cmd &= ~FUTEX_PRIVATE_FLAG;
1261
    }
1262
#endif
1263
    print_op(FUTEX_WAIT)
1264
    print_op(FUTEX_WAKE)
1265
    print_op(FUTEX_FD)
1266
    print_op(FUTEX_REQUEUE)
1267
    print_op(FUTEX_CMP_REQUEUE)
1268
    print_op(FUTEX_WAKE_OP)
1269
    print_op(FUTEX_LOCK_PI)
1270
    print_op(FUTEX_UNLOCK_PI)
1271
    print_op(FUTEX_TRYLOCK_PI)
1272
#ifdef FUTEX_WAIT_BITSET
1273
    print_op(FUTEX_WAIT_BITSET)
1274
#endif
1275
#ifdef FUTEX_WAKE_BITSET
1276
    print_op(FUTEX_WAKE_BITSET)
1277
#endif
1278
    /* unknown values */
1279
    gemu_log("%d",cmd);
1280
}
1281

    
1282
static void
1283
print_futex(const struct syscallname *name,
1284
    abi_long arg0, abi_long arg1, abi_long arg2,
1285
    abi_long arg3, abi_long arg4, abi_long arg5)
1286
{
1287
    print_syscall_prologue(name);
1288
    print_pointer(arg0, 0);
1289
    print_futex_op(arg1, 0);
1290
    print_raw_param(",%d", tswapl(arg2), 0);
1291
    print_pointer(arg3, 0); /* struct timespec */
1292
    print_pointer(arg4, 0);
1293
    print_raw_param("%d", tswapl(arg4), 1);
1294
    print_syscall_epilogue(name);
1295
}
1296
#endif
1297

    
1298
/*
1299
 * An array of all of the syscalls we know about
1300
 */
1301

    
1302
static const struct syscallname scnames[] = {
1303
#include "strace.list"
1304
};
1305

    
1306
static int nsyscalls = ARRAY_SIZE(scnames);
1307

    
1308
/*
1309
 * The public interface to this module.
1310
 */
1311
void
1312
print_syscall(int num,
1313
              abi_long arg1, abi_long arg2, abi_long arg3,
1314
              abi_long arg4, abi_long arg5, abi_long arg6)
1315
{
1316
    int i;
1317
    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 ")";
1318

    
1319
    gemu_log("%d ", getpid() );
1320

    
1321
    for(i=0;i<nsyscalls;i++)
1322
        if( scnames[i].nr == num ) {
1323
            if( scnames[i].call != NULL ) {
1324
                scnames[i].call(&scnames[i],arg1,arg2,arg3,arg4,arg5,arg6);
1325
            } else {
1326
                /* XXX: this format system is broken because it uses
1327
                   host types and host pointers for strings */
1328
                if( scnames[i].format != NULL )
1329
                    format = scnames[i].format;
1330
                gemu_log(format,scnames[i].name, arg1,arg2,arg3,arg4,arg5,arg6);
1331
            }
1332
            return;
1333
        }
1334
    gemu_log("Unknown syscall %d\n", num);
1335
}
1336

    
1337

    
1338
void
1339
print_syscall_ret(int num, abi_long ret)
1340
{
1341
    int i;
1342

    
1343
    for(i=0;i<nsyscalls;i++)
1344
        if( scnames[i].nr == num ) {
1345
            if( scnames[i].result != NULL ) {
1346
                scnames[i].result(&scnames[i],ret);
1347
            } else {
1348
                if( ret < 0 ) {
1349
                    gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n", -ret, target_strerror(-ret));
1350
                } else {
1351
                    gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
1352
                }
1353
            }
1354
            break;
1355
        }
1356
}