linux-user/strace.c

   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 flags, int last)
 445 {
 446     const char *sep = "";
 447     int n;
 448
 449     if ((flags == 0) && (f->f_value == 0)) {
 450         gemu_log("%s%s", f->f_string, get_comma(last));
 451         return;
 452     }
 453     for (n = 0; f->f_string != NULL; f++) {
 454         if ((f->f_value != 0) && ((flags & f->f_value) == f->f_value)) {
 455             gemu_log("%s%s", sep, f->f_string);
 456             flags &= ~f->f_value;
 457             sep = "|";
 458             n++;
 459         }
 460     }
 461
 462     if (n > 0) {
 463         /* print rest of the flags as numeric */
 464         if (flags != 0) {
 465             gemu_log("%s%#x%s", sep, (unsigned int)flags, get_comma(last));
 466         } else {
 467             gemu_log("%s", get_comma(last));
 468         }
 469     } else {
 470         /* no string version of flags found, print them in hex then */
 471         gemu_log("%#x%s", (unsigned int)flags, get_comma(last));
 472     }
 473 }
 474
 475 static void
 476 print_at_dirfd(abi_long dirfd, int last)
 477 {
 478 #ifdef AT_FDCWD
 479     if (dirfd == AT_FDCWD) {
 480         gemu_log("AT_FDCWD%s", get_comma(last));
 481         return;
 482     }
 483 #endif
 484     gemu_log("%d%s", (int)dirfd, get_comma(last));
 485 }
 486
 487 static void
 488 print_file_mode(abi_long mode, int last)
 489 {
 490     const char *sep = "";
 491     const struct flags *m;
 492
 493     for (m = &mode_flags[0]; m->f_string != NULL; m++) {
 494         if ((m->f_value & mode) == m->f_value) {
 495             gemu_log("%s%s", m->f_string, sep);
 496             sep = "|";
 497             mode &= ~m->f_value;
 498             break;
 499         }
 500     }
 501
 502     mode &= ~S_IFMT;
 503     /* print rest of the mode as octal */
 504     if (mode != 0)
 505         gemu_log("%s%#o", sep, (unsigned int)mode);
 506
 507     gemu_log("%s", get_comma(last));
 508 }
 509
 510 static void
 511 print_open_flags(abi_long flags, int last)
 512 {
 513     print_flags(open_access_flags, flags & TARGET_O_ACCMODE, 1);
 514     flags &= ~TARGET_O_ACCMODE;
 515     if (flags == 0) {
 516         gemu_log("%s", get_comma(last));
 517         return;
 518     }
 519     gemu_log("|");
 520     print_flags(open_flags, flags, last);
 521 }
 522
 523 static void
 524 print_syscall_prologue(const struct syscallname *sc)
 525 {
 526     gemu_log("%s(", sc->name);
 527 }
 528
 529 /*ARGSUSED*/
 530 static void
 531 print_syscall_epilogue(const struct syscallname *sc)
 532 {
 533     (void)sc;
 534     gemu_log(")");
 535 }
 536
 537 static void
 538 print_string(abi_long addr, int last)
 539 {
 540     char *s;
 541
 542     if ((s = lock_user_string(addr)) != NULL) {
 543         gemu_log("\"%s\"%s", s, get_comma(last));
 544         unlock_user(s, addr, 0);
 545     } else {
 546         /* can't get string out of it, so print it as pointer */
 547         print_pointer(addr, last);
 548     }
 549 }
 550
 551 /*
 552  * Prints out raw parameter using given format.  Caller needs
 553  * to do byte swapping if needed.
 554  */
 555 static void
 556 print_raw_param(const char *fmt, abi_long param, int last)
 557 {
 558     char format[64];
 559
 560     (void) snprintf(format, sizeof (format), "%s%s", fmt, get_comma(last));
 561     gemu_log(format, param);
 562 }
 563
 564 static void
 565 print_pointer(abi_long p, int last)
 566 {
 567     if (p == 0)
 568         gemu_log("NULL%s", get_comma(last));
 569     else
 570         gemu_log("0x" TARGET_ABI_FMT_lx "%s", p, get_comma(last));
 571 }
 572
 573 /*
 574  * Reads 32-bit (int) number from guest address space from
 575  * address 'addr' and prints it.
 576  */
 577 static void
 578 print_number(abi_long addr, int last)
 579 {
 580     if (addr == 0) {
 581         gemu_log("NULL%s", get_comma(last));
 582     } else {
 583         int num;
 584
 585         get_user_s32(num, addr);
 586         gemu_log("[%d]%s", num, get_comma(last));
 587     }
 588 }
 589
 590 static void
 591 print_timeval(abi_ulong tv_addr, int last)
 592 {
 593     if( tv_addr ) {
 594         struct target_timeval *tv;
 595
 596         tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1);
 597         if (!tv)
 598             return;
 599         gemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s",
 600             tv->tv_sec, tv->tv_usec, get_comma(last));
 601         unlock_user(tv, tv_addr, 0);
 602     } else
 603         gemu_log("NULL%s", get_comma(last));
 604 }
 605
 606 #undef UNUSED
 607
 608 #ifdef TARGET_NR_accept
 609 static void
 610 print_accept(const struct syscallname *name,
 611     abi_long arg0, abi_long arg1, abi_long arg2,
 612     abi_long arg3, abi_long arg4, abi_long arg5)
 613 {
 614     print_syscall_prologue(name);
 615     print_raw_param("%d", arg0, 0);
 616     print_pointer(arg1, 0);
 617     print_number(arg2, 1);
 618     print_syscall_epilogue(name);
 619 }
 620 #endif
 621
 622 #ifdef TARGET_NR_access
 623 static void
 624 print_access(const struct syscallname *name,
 625     abi_long arg0, abi_long arg1, abi_long arg2,
 626     abi_long arg3, abi_long arg4, abi_long arg5)
 627 {
 628     print_syscall_prologue(name);
 629     print_string(arg0, 0);
 630     print_flags(access_flags, arg1, 1);
 631     print_syscall_epilogue(name);
 632 }
 633 #endif
 634
 635 #ifdef TARGET_NR_brk
 636 static void
 637 print_brk(const struct syscallname *name,
 638     abi_long arg0, abi_long arg1, abi_long arg2,
 639     abi_long arg3, abi_long arg4, abi_long arg5)
 640 {
 641     print_syscall_prologue(name);
 642     print_pointer(arg0, 1);
 643     print_syscall_epilogue(name);
 644 }
 645 #endif
 646
 647 #ifdef TARGET_NR_chdir
 648 static void
 649 print_chdir(const struct syscallname *name,
 650     abi_long arg0, abi_long arg1, abi_long arg2,
 651     abi_long arg3, abi_long arg4, abi_long arg5)
 652 {
 653     print_syscall_prologue(name);
 654     print_string(arg0, 1);
 655     print_syscall_epilogue(name);
 656 }
 657 #endif
 658
 659 #ifdef TARGET_NR_chmod
 660 static void
 661 print_chmod(const struct syscallname *name,
 662     abi_long arg0, abi_long arg1, abi_long arg2,
 663     abi_long arg3, abi_long arg4, abi_long arg5)
 664 {
 665     print_syscall_prologue(name);
 666     print_string(arg0, 0);
 667     print_file_mode(arg1, 1);
 668     print_syscall_epilogue(name);
 669 }
 670 #endif
 671
 672 #ifdef TARGET_NR_creat
 673 static void
 674 print_creat(const struct syscallname *name,
 675     abi_long arg0, abi_long arg1, abi_long arg2,
 676     abi_long arg3, abi_long arg4, abi_long arg5)
 677 {
 678     print_syscall_prologue(name);
 679     print_string(arg0, 0);
 680     print_file_mode(arg1, 1);
 681     print_syscall_epilogue(name);
 682 }
 683 #endif
 684
 685 #ifdef TARGET_NR_execv
 686 static void
 687 print_execv(const struct syscallname *name,
 688     abi_long arg0, abi_long arg1, abi_long arg2,
 689     abi_long arg3, abi_long arg4, abi_long arg5)
 690 {
 691     print_syscall_prologue(name);
 692     print_string(arg0, 0);
 693     print_raw_param("0x" TARGET_ABI_FMT_lx, arg1, 1);
 694     print_syscall_epilogue(name);
 695 }
 696 #endif
 697
 698 #ifdef TARGET_NR_faccessat
 699 static void
 700 print_faccessat(const struct syscallname *name,
 701     abi_long arg0, abi_long arg1, abi_long arg2,
 702     abi_long arg3, abi_long arg4, abi_long arg5)
 703 {
 704     print_syscall_prologue(name);
 705     print_at_dirfd(arg0, 0);
 706     print_string(arg1, 0);
 707     print_flags(access_flags, arg2, 0);
 708     print_flags(at_file_flags, arg3, 1);
 709     print_syscall_epilogue(name);
 710 }
 711 #endif
 712
 713 #ifdef TARGET_NR_fchmodat
 714 static void
 715 print_fchmodat(const struct syscallname *name,
 716     abi_long arg0, abi_long arg1, abi_long arg2,
 717     abi_long arg3, abi_long arg4, abi_long arg5)
 718 {
 719     print_syscall_prologue(name);
 720     print_at_dirfd(arg0, 0);
 721     print_string(arg1, 0);
 722     print_file_mode(arg2, 0);
 723     print_flags(at_file_flags, arg3, 1);
 724     print_syscall_epilogue(name);
 725 }
 726 #endif
 727
 728 #ifdef TARGET_NR_fchownat
 729 static void
 730 print_fchownat(const struct syscallname *name,
 731     abi_long arg0, abi_long arg1, abi_long arg2,
 732     abi_long arg3, abi_long arg4, abi_long arg5)
 733 {
 734     print_syscall_prologue(name);
 735     print_at_dirfd(arg0, 0);
 736     print_string(arg1, 0);
 737     print_raw_param("%d", arg2, 0);
 738     print_raw_param("%d", arg3, 0);
 739     print_flags(at_file_flags, arg4, 1);
 740     print_syscall_epilogue(name);
 741 }
 742 #endif
 743
 744 #if defined(TARGET_NR_fcntl) || defined(TARGET_NR_fcntl64)
 745 static void
 746 print_fcntl(const struct syscallname *name,
 747     abi_long arg0, abi_long arg1, abi_long arg2,
 748     abi_long arg3, abi_long arg4, abi_long arg5)
 749 {
 750     print_syscall_prologue(name);
 751     print_raw_param("%d", arg0, 0);
 752     print_flags(fcntl_flags, arg1, 0);
 753     /*
 754      * TODO: check flags and print following argument only
 755      *       when needed.
 756      */
 757     print_pointer(arg2, 1);
 758     print_syscall_epilogue(name);
 759 }
 760 #define print_fcntl64   print_fcntl
 761 #endif
 762
 763
 764 #ifdef TARGET_NR_futimesat
 765 static void
 766 print_futimesat(const struct syscallname *name,
 767     abi_long arg0, abi_long arg1, abi_long arg2,
 768     abi_long arg3, abi_long arg4, abi_long arg5)
 769 {
 770     print_syscall_prologue(name);
 771     print_at_dirfd(arg0, 0);
 772     print_string(arg1, 0);
 773     print_timeval(arg2, 0);
 774     print_timeval(arg2 + sizeof (struct target_timeval), 1);
 775     print_syscall_epilogue(name);
 776 }
 777 #endif
 778
 779 #ifdef TARGET_NR_link
 780 static void
 781 print_link(const struct syscallname *name,
 782     abi_long arg0, abi_long arg1, abi_long arg2,
 783     abi_long arg3, abi_long arg4, abi_long arg5)
 784 {
 785     print_syscall_prologue(name);
 786     print_string(arg0, 0);
 787     print_string(arg1, 1);
 788     print_syscall_epilogue(name);
 789 }
 790 #endif
 791
 792 #ifdef TARGET_NR_linkat
 793 static void
 794 print_linkat(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_at_dirfd(arg0, 0);
 800     print_string(arg1, 0);
 801     print_at_dirfd(arg2, 0);
 802     print_string(arg3, 0);
 803     print_flags(at_file_flags, arg4, 1);
 804     print_syscall_epilogue(name);
 805 }
 806 #endif
 807
 808 #if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) || \
 809     defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64)
 810 static void
 811 print_stat(const struct syscallname *name,
 812     abi_long arg0, abi_long arg1, abi_long arg2,
 813     abi_long arg3, abi_long arg4, abi_long arg5)
 814 {
 815     print_syscall_prologue(name);
 816     print_string(arg0, 0);
 817     print_pointer(arg1, 1);
 818     print_syscall_epilogue(name);
 819 }
 820 #define print_lstat     print_stat
 821 #define print_stat64    print_stat
 822 #define print_lstat64   print_stat
 823 #endif
 824
 825 #if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
 826 static void
 827 print_fstat(const struct syscallname *name,
 828     abi_long arg0, abi_long arg1, abi_long arg2,
 829     abi_long arg3, abi_long arg4, abi_long arg5)
 830 {
 831     print_syscall_prologue(name);
 832     print_raw_param("%d", arg0, 0);
 833     print_pointer(arg1, 1);
 834     print_syscall_epilogue(name);
 835 }
 836 #define print_fstat64     print_fstat
 837 #endif
 838
 839 #ifdef TARGET_NR_mkdir
 840 static void
 841 print_mkdir(const struct syscallname *name,
 842     abi_long arg0, abi_long arg1, abi_long arg2,
 843     abi_long arg3, abi_long arg4, abi_long arg5)
 844 {
 845     print_syscall_prologue(name);
 846     print_string(arg0, 0);
 847     print_file_mode(arg1, 1);
 848     print_syscall_epilogue(name);
 849 }
 850 #endif
 851
 852 #ifdef TARGET_NR_mkdirat
 853 static void
 854 print_mkdirat(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_at_dirfd(arg0, 0);
 860     print_string(arg1, 0);
 861     print_file_mode(arg2, 1);
 862     print_syscall_epilogue(name);
 863 }
 864 #endif
 865
 866 #ifdef TARGET_NR_rmdir
 867 static void
 868 print_rmdir(const struct syscallname *name,
 869     abi_long arg0, abi_long arg1, abi_long arg2,
 870     abi_long arg3, abi_long arg4, abi_long arg5)
 871 {
 872     print_syscall_prologue(name);
 873     print_string(arg0, 0);
 874     print_syscall_epilogue(name);
 875 }
 876 #endif
 877
 878 #ifdef TARGET_NR_mknod
 879 static void
 880 print_mknod(const struct syscallname *name,
 881     abi_long arg0, abi_long arg1, abi_long arg2,
 882     abi_long arg3, abi_long arg4, abi_long arg5)
 883 {
 884     int hasdev = (arg1 & (S_IFCHR|S_IFBLK));
 885
 886     print_syscall_prologue(name);
 887     print_string(arg0, 0);
 888     print_file_mode(arg1, (hasdev == 0));
 889     if (hasdev) {
 890         print_raw_param("makedev(%d", major(arg2), 0);
 891         print_raw_param("%d)", minor(arg2), 1);
 892     }
 893     print_syscall_epilogue(name);
 894 }
 895 #endif
 896
 897 #ifdef TARGET_NR_mknodat
 898 static void
 899 print_mknodat(const struct syscallname *name,
 900     abi_long arg0, abi_long arg1, abi_long arg2,
 901     abi_long arg3, abi_long arg4, abi_long arg5)
 902 {
 903     int hasdev = (arg2 & (S_IFCHR|S_IFBLK));
 904
 905     print_syscall_prologue(name);
 906     print_at_dirfd(arg0, 0);
 907     print_string(arg1, 0);
 908     print_file_mode(arg2, (hasdev == 0));
 909     if (hasdev) {
 910         print_raw_param("makedev(%d", major(arg3), 0);
 911         print_raw_param("%d)", minor(arg3), 1);
 912     }
 913     print_syscall_epilogue(name);
 914 }
 915 #endif
 916
 917 #ifdef TARGET_NR_mq_open
 918 static void
 919 print_mq_open(const struct syscallname *name,
 920     abi_long arg0, abi_long arg1, abi_long arg2,
 921     abi_long arg3, abi_long arg4, abi_long arg5)
 922 {
 923     int is_creat = (arg1 & TARGET_O_CREAT);
 924
 925     print_syscall_prologue(name);
 926     print_string(arg0, 0);
 927     print_open_flags(arg1, (is_creat == 0));
 928     if (is_creat) {
 929         print_file_mode(arg2, 0);
 930         print_pointer(arg3, 1);
 931     }
 932     print_syscall_epilogue(name);
 933 }
 934 #endif
 935
 936 #ifdef TARGET_NR_open
 937 static void
 938 print_open(const struct syscallname *name,
 939     abi_long arg0, abi_long arg1, abi_long arg2,
 940     abi_long arg3, abi_long arg4, abi_long arg5)
 941 {
 942     int is_creat = (arg1 & TARGET_O_CREAT);
 943
 944     print_syscall_prologue(name);
 945     print_string(arg0, 0);
 946     print_open_flags(arg1, (is_creat == 0));
 947     if (is_creat)
 948         print_file_mode(arg2, 1);
 949     print_syscall_epilogue(name);
 950 }
 951 #endif
 952
 953 #ifdef TARGET_NR_openat
 954 static void
 955 print_openat(const struct syscallname *name,
 956     abi_long arg0, abi_long arg1, abi_long arg2,
 957     abi_long arg3, abi_long arg4, abi_long arg5)
 958 {
 959     int is_creat = (arg2 & TARGET_O_CREAT);
 960
 961     print_syscall_prologue(name);
 962     print_at_dirfd(arg0, 0);
 963     print_string(arg1, 0);
 964     print_open_flags(arg2, (is_creat == 0));
 965     if (is_creat)
 966         print_file_mode(arg3, 1);
 967     print_syscall_epilogue(name);
 968 }
 969 #endif
 970
 971 #ifdef TARGET_NR_mq_unlink
 972 static void
 973 print_mq_unlink(const struct syscallname *name,
 974     abi_long arg0, abi_long arg1, abi_long arg2,
 975     abi_long arg3, abi_long arg4, abi_long arg5)
 976 {
 977     print_syscall_prologue(name);
 978     print_string(arg0, 1);
 979     print_syscall_epilogue(name);
 980 }
 981 #endif
 982
 983 #if defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)
 984 static void
 985 print_fstatat64(const struct syscallname *name,
 986     abi_long arg0, abi_long arg1, abi_long arg2,
 987     abi_long arg3, abi_long arg4, abi_long arg5)
 988 {
 989     print_syscall_prologue(name);
 990     print_at_dirfd(arg0, 0);
 991     print_string(arg1, 0);
 992     print_pointer(arg2, 0);
 993     print_flags(at_file_flags, arg3, 1);
 994     print_syscall_epilogue(name);
 995 }
 996 #define print_newfstatat    print_fstatat64
 997 #endif
 998
 999 #ifdef TARGET_NR_readlink
1000 static void
1001 print_readlink(const struct syscallname *name,
1002     abi_long arg0, abi_long arg1, abi_long arg2,
1003     abi_long arg3, abi_long arg4, abi_long arg5)
1004 {
1005     print_syscall_prologue(name);
1006     print_string(arg0, 0);
1007     print_pointer(arg1, 0);
1008     print_raw_param("%u", arg2, 1);
1009     print_syscall_epilogue(name);
1010 }
1011 #endif
1012
1013 #ifdef TARGET_NR_readlinkat
1014 static void
1015 print_readlinkat(const struct syscallname *name,
1016     abi_long arg0, abi_long arg1, abi_long arg2,
1017     abi_long arg3, abi_long arg4, abi_long arg5)
1018 {
1019     print_syscall_prologue(name);
1020     print_at_dirfd(arg0, 0);
1021     print_string(arg1, 0);
1022     print_pointer(arg2, 0);
1023     print_raw_param("%u", arg3, 1);
1024     print_syscall_epilogue(name);
1025 }
1026 #endif
1027
1028 #ifdef TARGET_NR_rename
1029 static void
1030 print_rename(const struct syscallname *name,
1031     abi_long arg0, abi_long arg1, abi_long arg2,
1032     abi_long arg3, abi_long arg4, abi_long arg5)
1033 {
1034     print_syscall_prologue(name);
1035     print_string(arg0, 0);
1036     print_string(arg1, 1);
1037     print_syscall_epilogue(name);
1038 }
1039 #endif
1040
1041 #ifdef TARGET_NR_renameat
1042 static void
1043 print_renameat(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_at_dirfd(arg0, 0);
1049     print_string(arg1, 0);
1050     print_at_dirfd(arg2, 0);
1051     print_string(arg3, 1);
1052     print_syscall_epilogue(name);
1053 }
1054 #endif
1055
1056 #ifdef TARGET_NR_statfs
1057 static void
1058 print_statfs(const struct syscallname *name,
1059     abi_long arg0, abi_long arg1, abi_long arg2,
1060     abi_long arg3, abi_long arg4, abi_long arg5)
1061 {
1062     print_syscall_prologue(name);
1063     print_string(arg0, 0);
1064     print_pointer(arg1, 1);
1065     print_syscall_epilogue(name);
1066 }
1067 #define print_statfs64  print_statfs
1068 #endif
1069
1070 #ifdef TARGET_NR_symlink
1071 static void
1072 print_symlink(const struct syscallname *name,
1073     abi_long arg0, abi_long arg1, abi_long arg2,
1074     abi_long arg3, abi_long arg4, abi_long arg5)
1075 {
1076     print_syscall_prologue(name);
1077     print_string(arg0, 0);
1078     print_string(arg1, 1);
1079     print_syscall_epilogue(name);
1080 }
1081 #endif
1082
1083 #ifdef TARGET_NR_symlinkat
1084 static void
1085 print_symlinkat(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_at_dirfd(arg1, 0);
1092     print_string(arg2, 1);
1093     print_syscall_epilogue(name);
1094 }
1095 #endif
1096
1097 #ifdef TARGET_NR_mount
1098 static void
1099 print_mount(const struct syscallname *name,
1100     abi_long arg0, abi_long arg1, abi_long arg2,
1101     abi_long arg3, abi_long arg4, abi_long arg5)
1102 {
1103     print_syscall_prologue(name);
1104     print_string(arg0, 0);
1105     print_string(arg1, 0);
1106     print_string(arg2, 0);
1107     print_flags(mount_flags, arg3, 0);
1108     print_pointer(arg4, 1);
1109     print_syscall_epilogue(name);
1110 }
1111 #endif
1112
1113 #ifdef TARGET_NR_umount
1114 static void
1115 print_umount(const struct syscallname *name,
1116     abi_long arg0, abi_long arg1, abi_long arg2,
1117     abi_long arg3, abi_long arg4, abi_long arg5)
1118 {
1119     print_syscall_prologue(name);
1120     print_string(arg0, 1);
1121     print_syscall_epilogue(name);
1122 }
1123 #endif
1124
1125 #ifdef TARGET_NR_umount2
1126 static void
1127 print_umount2(const struct syscallname *name,
1128     abi_long arg0, abi_long arg1, abi_long arg2,
1129     abi_long arg3, abi_long arg4, abi_long arg5)
1130 {
1131     print_syscall_prologue(name);
1132     print_string(arg0, 0);
1133     print_flags(umount2_flags, arg1, 1);
1134     print_syscall_epilogue(name);
1135 }
1136 #endif
1137
1138 #ifdef TARGET_NR_unlink
1139 static void
1140 print_unlink(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, 1);
1146     print_syscall_epilogue(name);
1147 }
1148 #endif
1149
1150 #ifdef TARGET_NR_unlinkat
1151 static void
1152 print_unlinkat(const struct syscallname *name,
1153     abi_long arg0, abi_long arg1, abi_long arg2,
1154     abi_long arg3, abi_long arg4, abi_long arg5)
1155 {
1156     print_syscall_prologue(name);
1157     print_at_dirfd(arg0, 0);
1158     print_string(arg1, 0);
1159     print_flags(unlinkat_flags, arg2, 1);
1160     print_syscall_epilogue(name);
1161 }
1162 #endif
1163
1164 #ifdef TARGET_NR_utime
1165 static void
1166 print_utime(const struct syscallname *name,
1167     abi_long arg0, abi_long arg1, abi_long arg2,
1168     abi_long arg3, abi_long arg4, abi_long arg5)
1169 {
1170     print_syscall_prologue(name);
1171     print_string(arg0, 0);
1172     print_pointer(arg1, 1);
1173     print_syscall_epilogue(name);
1174 }
1175 #endif
1176
1177 #ifdef TARGET_NR_utimes
1178 static void
1179 print_utimes(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_utimensat
1191 static void
1192 print_utimensat(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_at_dirfd(arg0, 0);
1198     print_string(arg1, 0);
1199     print_pointer(arg2, 0);
1200     print_flags(at_file_flags, arg3, 1);
1201     print_syscall_epilogue(name);
1202 }
1203 #endif
1204
1205 #if defined(TARGET_NR_mmap) || defined(TARGET_NR_mmap2)
1206 static void
1207 print_mmap(const struct syscallname *name,
1208     abi_long arg0, abi_long arg1, abi_long arg2,
1209     abi_long arg3, abi_long arg4, abi_long arg5)
1210 {
1211     print_syscall_prologue(name);
1212     print_pointer(arg0, 0);
1213     print_raw_param("%d", arg1, 0);
1214     print_flags(mmap_prot_flags, arg2, 0);
1215     print_flags(mmap_flags, arg3, 0);
1216     print_raw_param("%d", arg4, 0);
1217     print_raw_param("%#x", arg5, 1);
1218     print_syscall_epilogue(name);
1219 }
1220 #define print_mmap2     print_mmap
1221 #endif
1222
1223 #ifdef TARGET_NR_mprotect
1224 static void
1225 print_mprotect(const struct syscallname *name,
1226     abi_long arg0, abi_long arg1, abi_long arg2,
1227     abi_long arg3, abi_long arg4, abi_long arg5)
1228 {
1229     print_syscall_prologue(name);
1230     print_pointer(arg0, 0);
1231     print_raw_param("%d", arg1, 0);
1232     print_flags(mmap_prot_flags, arg2, 1);
1233     print_syscall_epilogue(name);
1234 }
1235 #endif
1236
1237 #ifdef TARGET_NR_munmap
1238 static void
1239 print_munmap(const struct syscallname *name,
1240     abi_long arg0, abi_long arg1, abi_long arg2,
1241     abi_long arg3, abi_long arg4, abi_long arg5)
1242 {
1243     print_syscall_prologue(name);
1244     print_pointer(arg0, 0);
1245     print_raw_param("%d", arg1, 1);
1246     print_syscall_epilogue(name);
1247 }
1248 #endif
1249
1250 #ifdef TARGET_NR_futex
1251 static void print_futex_op(abi_long tflag, int last)
1252 {
1253 #define print_op(val) \
1254 if( cmd == val ) { \
1255     gemu_log(#val); \
1256     return; \
1257 }
1258
1259     int cmd = (int)tflag;
1260 #ifdef FUTEX_PRIVATE_FLAG
1261     if (cmd & FUTEX_PRIVATE_FLAG) {
1262         gemu_log("FUTEX_PRIVATE_FLAG|");
1263         cmd &= ~FUTEX_PRIVATE_FLAG;
1264     }
1265 #endif
1266     print_op(FUTEX_WAIT)
1267     print_op(FUTEX_WAKE)
1268     print_op(FUTEX_FD)
1269     print_op(FUTEX_REQUEUE)
1270     print_op(FUTEX_CMP_REQUEUE)
1271     print_op(FUTEX_WAKE_OP)
1272     print_op(FUTEX_LOCK_PI)
1273     print_op(FUTEX_UNLOCK_PI)
1274     print_op(FUTEX_TRYLOCK_PI)
1275 #ifdef FUTEX_WAIT_BITSET
1276     print_op(FUTEX_WAIT_BITSET)
1277 #endif
1278 #ifdef FUTEX_WAKE_BITSET
1279     print_op(FUTEX_WAKE_BITSET)
1280 #endif
1281     /* unknown values */
1282     gemu_log("%d",cmd);
1283 }
1284
1285 static void
1286 print_futex(const struct syscallname *name,
1287     abi_long arg0, abi_long arg1, abi_long arg2,
1288     abi_long arg3, abi_long arg4, abi_long arg5)
1289 {
1290     print_syscall_prologue(name);
1291     print_pointer(arg0, 0);
1292     print_futex_op(arg1, 0);
1293     print_raw_param(",%d", arg2, 0);
1294     print_pointer(arg3, 0); /* struct timespec */
1295     print_pointer(arg4, 0);
1296     print_raw_param("%d", arg4, 1);
1297     print_syscall_epilogue(name);
1298 }
1299 #endif
1300
1301 /*
1302  * An array of all of the syscalls we know about
1303  */
1304
1305 static const struct syscallname scnames[] = {
1306 #include "strace.list"
1307 };
1308
1309 static int nsyscalls = ARRAY_SIZE(scnames);
1310
1311 /*
1312  * The public interface to this module.
1313  */
1314 void
1315 print_syscall(int num,
1316               abi_long arg1, abi_long arg2, abi_long arg3,
1317               abi_long arg4, abi_long arg5, abi_long arg6)
1318 {
1319     int i;
1320     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 ")";
1321
1322     gemu_log("%d ", getpid() );
1323
1324     for(i=0;i<nsyscalls;i++)
1325         if( scnames[i].nr == num ) {
1326             if( scnames[i].call != NULL ) {
1327                 scnames[i].call(&scnames[i],arg1,arg2,arg3,arg4,arg5,arg6);
1328             } else {
1329                 /* XXX: this format system is broken because it uses
1330                    host types and host pointers for strings */
1331                 if( scnames[i].format != NULL )
1332                     format = scnames[i].format;
1333                 gemu_log(format,scnames[i].name, arg1,arg2,arg3,arg4,arg5,arg6);
1334             }
1335             return;
1336         }
1337     gemu_log("Unknown syscall %d\n", num);
1338 }
1339
1340
1341 void
1342 print_syscall_ret(int num, abi_long ret)
1343 {
1344     int i;
1345
1346     for(i=0;i<nsyscalls;i++)
1347         if( scnames[i].nr == num ) {
1348             if( scnames[i].result != NULL ) {
1349                 scnames[i].result(&scnames[i],ret);
1350             } else {
1351                 if( ret < 0 ) {
1352                     gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n", -ret, target_strerror(-ret));
1353                 } else {
1354                     gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
1355                 }
1356             }
1357             break;
1358         }
1359 }