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_END,
 389 };
 390
 391 UNUSED static struct flags mmap_flags[] = {
 392     FLAG_TARGET(MAP_SHARED),
 393     FLAG_TARGET(MAP_PRIVATE),
 394     FLAG_TARGET(MAP_ANONYMOUS),
 395     FLAG_TARGET(MAP_DENYWRITE),
 396     FLAG_TARGET(MAP_FIXED),
 397     FLAG_TARGET(MAP_GROWSDOWN),
 398 #ifdef MAP_LOCKED
 399     FLAG_TARGET(MAP_LOCKED),
 400 #endif
 401 #ifdef MAP_NONBLOCK
 402     FLAG_TARGET(MAP_NONBLOCK),
 403 #endif
 404     FLAG_TARGET(MAP_NORESERVE),
 405 #ifdef MAP_POPULATE
 406     FLAG_TARGET(MAP_POPULATE),
 407 #endif
 408     FLAG_END,
 409 };
 410
 411 UNUSED static struct flags fcntl_flags[] = {
 412     FLAG_TARGET(F_DUPFD),
 413     FLAG_TARGET(F_GETFD),
 414     FLAG_TARGET(F_SETFD),
 415     FLAG_TARGET(F_GETFL),
 416     FLAG_TARGET(F_SETFL),
 417     FLAG_TARGET(F_GETLK),
 418     FLAG_TARGET(F_SETLK),
 419     FLAG_TARGET(F_SETLKW),
 420     FLAG_END,
 421 };
 422
 423 /*
 424  * print_xxx utility functions.  These are used to print syscall
 425  * parameters in certain format.  All of these have parameter
 426  * named 'last'.  This parameter is used to add comma to output
 427  * when last == 0.
 428  */
 429
 430 static const char *
 431 get_comma(int last)
 432 {
 433     return ((last) ? "" : ",");
 434 }
 435
 436 static void
 437 print_flags(const struct flags *f, abi_long tflags, int last)
 438 {
 439     const char *sep = "";
 440     int flags;
 441     int n;
 442
 443     flags = (int)tswap32(tflags);
 444
 445     if ((flags == 0) && (f->f_value == 0)) {
 446         gemu_log("%s%s", f->f_string, get_comma(last));
 447         return;
 448     }
 449     for (n = 0; f->f_string != NULL; f++) {
 450         if ((f->f_value != 0) && ((flags & f->f_value) == f->f_value)) {
 451             gemu_log("%s%s", sep, f->f_string);
 452             flags &= ~f->f_value;
 453             sep = "|";
 454             n++;
 455         }
 456     }
 457
 458     if (n > 0) {
 459         /* print rest of the flags as numeric */
 460         if (flags != 0) {
 461             gemu_log("%s%#x%s", sep, flags, get_comma(last));
 462         } else {
 463             gemu_log("%s", get_comma(last));
 464         }
 465     } else {
 466         /* no string version of flags found, print them in hex then */
 467         gemu_log("%#x%s", flags, get_comma(last));
 468     }
 469 }
 470
 471 static void
 472 print_at_dirfd(abi_long tdirfd, int last)
 473 {
 474     int dirfd = tswap32(tdirfd);
 475
 476 #ifdef AT_FDCWD
 477     if (dirfd == AT_FDCWD) {
 478         gemu_log("AT_FDCWD%s", get_comma(last));
 479         return;
 480     }
 481 #endif
 482     gemu_log("%d%s", dirfd, get_comma(last));
 483 }
 484
 485 static void
 486 print_file_mode(abi_long tmode, int last)
 487 {
 488     const char *sep = "";
 489     const struct flags *m;
 490     mode_t mode = (mode_t)tswap32(tmode);
 491
 492     for (m = &mode_flags[0]; m->f_string != NULL; m++) {
 493         if ((m->f_value & mode) == m->f_value) {
 494             gemu_log("%s%s", m->f_string, sep);
 495             sep = "|";
 496             mode &= ~m->f_value;
 497             break;
 498         }
 499     }
 500
 501     mode &= ~S_IFMT;
 502     /* print rest of the mode as octal */
 503     if (mode != 0)
 504         gemu_log("%s%#o", sep, mode);
 505
 506     gemu_log("%s", get_comma(last));
 507 }
 508
 509 static void
 510 print_open_flags(abi_long tflags, int last)
 511 {
 512     int flags = tswap32(tflags);
 513
 514     print_flags(open_access_flags, flags & TARGET_O_ACCMODE, 1);
 515     flags &= ~TARGET_O_ACCMODE;
 516     if (flags == 0) {
 517         gemu_log("%s", get_comma(last));
 518         return;
 519     }
 520     gemu_log("|");
 521     print_flags(open_flags, flags, last);
 522 }
 523
 524 static void
 525 print_syscall_prologue(const struct syscallname *sc)
 526 {
 527     gemu_log("%s(", sc->name);
 528 }
 529
 530 /*ARGSUSED*/
 531 static void
 532 print_syscall_epilogue(const struct syscallname *sc)
 533 {
 534     (void)sc;
 535     gemu_log(")");
 536 }
 537
 538 static void
 539 print_string(abi_long addr, int last)
 540 {
 541     char *s;
 542
 543     if ((s = lock_user_string(addr)) != NULL) {
 544         gemu_log("\"%s\"%s", s, get_comma(last));
 545         unlock_user(s, addr, 0);
 546     } else {
 547         /* can't get string out of it, so print it as pointer */
 548         print_pointer(addr, last);
 549     }
 550 }
 551
 552 /*
 553  * Prints out raw parameter using given format.  Caller needs
 554  * to do byte swapping if needed.
 555  */
 556 static void
 557 print_raw_param(const char *fmt, abi_long param, int last)
 558 {
 559     char format[64];
 560
 561     (void) snprintf(format, sizeof (format), "%s%s", fmt, get_comma(last));
 562     gemu_log(format, param);
 563 }
 564
 565 static void
 566 print_pointer(abi_long p, int last)
 567 {
 568     if (p == 0)
 569         gemu_log("NULL%s", get_comma(last));
 570     else
 571         gemu_log("0x" TARGET_ABI_FMT_lx "%s", p, get_comma(last));
 572 }
 573
 574 /*
 575  * Reads 32-bit (int) number from guest address space from
 576  * address 'addr' and prints it.
 577  */
 578 static void
 579 print_number(abi_long addr, int last)
 580 {
 581     if (addr == 0) {
 582         gemu_log("NULL%s", get_comma(last));
 583     } else {
 584         int num;
 585
 586         get_user_s32(num, addr);
 587         gemu_log("[%d]%s", num, get_comma(last));
 588     }
 589 }
 590
 591 static void
 592 print_timeval(abi_ulong tv_addr, int last)
 593 {
 594     if( tv_addr ) {
 595         struct target_timeval *tv;
 596
 597         tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1);
 598         if (!tv)
 599             return;
 600         gemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s",
 601             tv->tv_sec, tv->tv_usec, get_comma(last));
 602         unlock_user(tv, tv_addr, 0);
 603     } else
 604         gemu_log("NULL%s", get_comma(last));
 605 }
 606
 607 #undef UNUSED
 608
 609 #ifdef TARGET_NR_accept
 610 static void
 611 print_accept(const struct syscallname *name,
 612     abi_long arg0, abi_long arg1, abi_long arg2,
 613     abi_long arg3, abi_long arg4, abi_long arg5)
 614 {
 615     print_syscall_prologue(name);
 616     print_raw_param("%d", tswap32(arg0), 0);
 617     print_pointer(arg1, 0);
 618     print_number(arg2, 1);
 619     print_syscall_epilogue(name);
 620 }
 621 #endif
 622
 623 #ifdef TARGET_NR_access
 624 static void
 625 print_access(const struct syscallname *name,
 626     abi_long arg0, abi_long arg1, abi_long arg2,
 627     abi_long arg3, abi_long arg4, abi_long arg5)
 628 {
 629     print_syscall_prologue(name);
 630     print_string(arg0, 0);
 631     print_flags(access_flags, arg1, 1);
 632     print_syscall_epilogue(name);
 633 }
 634 #endif
 635
 636 #ifdef TARGET_NR_brk
 637 static void
 638 print_brk(const struct syscallname *name,
 639     abi_long arg0, abi_long arg1, abi_long arg2,
 640     abi_long arg3, abi_long arg4, abi_long arg5)
 641 {
 642     print_syscall_prologue(name);
 643     print_pointer(arg0, 1);
 644     print_syscall_epilogue(name);
 645 }
 646 #endif
 647
 648 #ifdef TARGET_NR_chdir
 649 static void
 650 print_chdir(const struct syscallname *name,
 651     abi_long arg0, abi_long arg1, abi_long arg2,
 652     abi_long arg3, abi_long arg4, abi_long arg5)
 653 {
 654     print_syscall_prologue(name);
 655     print_string(arg0, 1);
 656     print_syscall_epilogue(name);
 657 }
 658 #endif
 659
 660 #ifdef TARGET_NR_chmod
 661 static void
 662 print_chmod(const struct syscallname *name,
 663     abi_long arg0, abi_long arg1, abi_long arg2,
 664     abi_long arg3, abi_long arg4, abi_long arg5)
 665 {
 666     print_syscall_prologue(name);
 667     print_string(arg0, 0);
 668     print_file_mode(arg1, 1);
 669     print_syscall_epilogue(name);
 670 }
 671 #endif
 672
 673 #ifdef TARGET_NR_creat
 674 static void
 675 print_creat(const struct syscallname *name,
 676     abi_long arg0, abi_long arg1, abi_long arg2,
 677     abi_long arg3, abi_long arg4, abi_long arg5)
 678 {
 679     print_syscall_prologue(name);
 680     print_string(arg0, 0);
 681     print_file_mode(arg1, 1);
 682     print_syscall_epilogue(name);
 683 }
 684 #endif
 685
 686 #ifdef TARGET_NR_execv
 687 static void
 688 print_execv(const struct syscallname *name,
 689     abi_long arg0, abi_long arg1, abi_long arg2,
 690     abi_long arg3, abi_long arg4, abi_long arg5)
 691 {
 692     print_syscall_prologue(name);
 693     print_string(arg0, 0);
 694     print_raw_param("0x" TARGET_ABI_FMT_lx, tswapl(arg1), 1);
 695     print_syscall_epilogue(name);
 696 }
 697 #endif
 698
 699 #ifdef TARGET_NR_faccessat
 700 static void
 701 print_faccessat(const struct syscallname *name,
 702     abi_long arg0, abi_long arg1, abi_long arg2,
 703     abi_long arg3, abi_long arg4, abi_long arg5)
 704 {
 705     print_syscall_prologue(name);
 706     print_at_dirfd(arg0, 0);
 707     print_string(arg1, 0);
 708     print_flags(access_flags, arg2, 0);
 709     print_flags(at_file_flags, arg3, 1);
 710     print_syscall_epilogue(name);
 711 }
 712 #endif
 713
 714 #ifdef TARGET_NR_fchmodat
 715 static void
 716 print_fchmodat(const struct syscallname *name,
 717     abi_long arg0, abi_long arg1, abi_long arg2,
 718     abi_long arg3, abi_long arg4, abi_long arg5)
 719 {
 720     print_syscall_prologue(name);
 721     print_at_dirfd(arg0, 0);
 722     print_string(arg1, 0);
 723     print_file_mode(arg2, 0);
 724     print_flags(at_file_flags, arg3, 1);
 725     print_syscall_epilogue(name);
 726 }
 727 #endif
 728
 729 #ifdef TARGET_NR_fchownat
 730 static void
 731 print_fchownat(const struct syscallname *name,
 732     abi_long arg0, abi_long arg1, abi_long arg2,
 733     abi_long arg3, abi_long arg4, abi_long arg5)
 734 {
 735     print_syscall_prologue(name);
 736     print_at_dirfd(arg0, 0);
 737     print_string(arg1, 0);
 738 #ifdef USE_UID16
 739     print_raw_param("%d", tswap16(arg2), 0);
 740     print_raw_param("%d", tswap16(arg3), 0);
 741 #else
 742     print_raw_param("%d", tswap32(arg2), 0);
 743     print_raw_param("%d", tswap32(arg3), 0);
 744 #endif
 745     print_flags(at_file_flags, arg4, 1);
 746     print_syscall_epilogue(name);
 747 }
 748 #endif
 749
 750 #if defined(TARGET_NR_fcntl) || defined(TARGET_NR_fcntl64)
 751 static void
 752 print_fcntl(const struct syscallname *name,
 753     abi_long arg0, abi_long arg1, abi_long arg2,
 754     abi_long arg3, abi_long arg4, abi_long arg5)
 755 {
 756     print_syscall_prologue(name);
 757     print_raw_param("%d", tswap32(arg0), 0);
 758     print_flags(fcntl_flags, arg1, 0);
 759     /*
 760      * TODO: check flags and print following argument only
 761      *       when needed.
 762      */
 763     print_pointer(arg2, 1);
 764     print_syscall_epilogue(name);
 765 }
 766 #define print_fcntl64   print_fcntl
 767 #endif
 768
 769
 770 #ifdef TARGET_NR_futimesat
 771 static void
 772 print_futimesat(const struct syscallname *name,
 773     abi_long arg0, abi_long arg1, abi_long arg2,
 774     abi_long arg3, abi_long arg4, abi_long arg5)
 775 {
 776     print_syscall_prologue(name);
 777     print_at_dirfd(arg0, 0);
 778     print_string(arg1, 0);
 779     print_timeval(arg2, 0);
 780     print_timeval(arg2 + sizeof (struct target_timeval), 1);
 781     print_syscall_epilogue(name);
 782 }
 783 #endif
 784
 785 #ifdef TARGET_NR_link
 786 static void
 787 print_link(const struct syscallname *name,
 788     abi_long arg0, abi_long arg1, abi_long arg2,
 789     abi_long arg3, abi_long arg4, abi_long arg5)
 790 {
 791     print_syscall_prologue(name);
 792     print_string(arg0, 0);
 793     print_string(arg1, 1);
 794     print_syscall_epilogue(name);
 795 }
 796 #endif
 797
 798 #ifdef TARGET_NR_linkat
 799 static void
 800 print_linkat(const struct syscallname *name,
 801     abi_long arg0, abi_long arg1, abi_long arg2,
 802     abi_long arg3, abi_long arg4, abi_long arg5)
 803 {
 804     print_syscall_prologue(name);
 805     print_at_dirfd(arg0, 0);
 806     print_string(arg1, 0);
 807     print_at_dirfd(arg2, 0);
 808     print_string(arg3, 0);
 809     print_flags(at_file_flags, arg4, 1);
 810     print_syscall_epilogue(name);
 811 }
 812 #endif
 813
 814 #if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) || \
 815     defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64)
 816 static void
 817 print_stat(const struct syscallname *name,
 818     abi_long arg0, abi_long arg1, abi_long arg2,
 819     abi_long arg3, abi_long arg4, abi_long arg5)
 820 {
 821     print_syscall_prologue(name);
 822     print_string(arg0, 0);
 823     print_pointer(arg1, 1);
 824     print_syscall_epilogue(name);
 825 }
 826 #define print_lstat     print_stat
 827 #define print_stat64    print_stat
 828 #define print_lstat64   print_stat
 829 #endif
 830
 831 #if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
 832 static void
 833 print_fstat(const struct syscallname *name,
 834     abi_long arg0, abi_long arg1, abi_long arg2,
 835     abi_long arg3, abi_long arg4, abi_long arg5)
 836 {
 837     print_syscall_prologue(name);
 838     print_raw_param("%d", tswap32(arg0), 0);
 839     print_pointer(arg1, 1);
 840     print_syscall_epilogue(name);
 841 }
 842 #define print_fstat64     print_fstat
 843 #endif
 844
 845 #ifdef TARGET_NR_mkdir
 846 static void
 847 print_mkdir(const struct syscallname *name,
 848     abi_long arg0, abi_long arg1, abi_long arg2,
 849     abi_long arg3, abi_long arg4, abi_long arg5)
 850 {
 851     print_syscall_prologue(name);
 852     print_string(arg0, 0);
 853     print_file_mode(arg1, 1);
 854     print_syscall_epilogue(name);
 855 }
 856 #endif
 857
 858 #ifdef TARGET_NR_mkdirat
 859 static void
 860 print_mkdirat(const struct syscallname *name,
 861     abi_long arg0, abi_long arg1, abi_long arg2,
 862     abi_long arg3, abi_long arg4, abi_long arg5)
 863 {
 864     print_syscall_prologue(name);
 865     print_at_dirfd(arg0, 0);
 866     print_string(arg1, 0);
 867     print_file_mode(arg2, 1);
 868     print_syscall_epilogue(name);
 869 }
 870 #endif
 871
 872 #ifdef TARGET_NR_mknod
 873 static void
 874 print_mknod(const struct syscallname *name,
 875     abi_long arg0, abi_long arg1, abi_long arg2,
 876     abi_long arg3, abi_long arg4, abi_long arg5)
 877 {
 878     int hasdev = (tswapl(arg1) & (S_IFCHR|S_IFBLK));
 879
 880     print_syscall_prologue(name);
 881     print_string(arg0, 0);
 882     print_file_mode(arg1, (hasdev == 0));
 883     if (hasdev) {
 884         print_raw_param("makedev(%d", major(tswapl(arg2)), 0);
 885         print_raw_param("%d)", minor(tswapl(arg2)), 1);
 886     }
 887     print_syscall_epilogue(name);
 888 }
 889 #endif
 890
 891 #ifdef TARGET_NR_mknodat
 892 static void
 893 print_mknodat(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(arg2) & (S_IFCHR|S_IFBLK));
 898
 899     print_syscall_prologue(name);
 900     print_at_dirfd(arg0, 0);
 901     print_string(arg1, 0);
 902     print_file_mode(arg2, (hasdev == 0));
 903     if (hasdev) {
 904         print_raw_param("makedev(%d", major(tswapl(arg3)), 0);
 905         print_raw_param("%d)", minor(tswapl(arg3)), 1);
 906     }
 907     print_syscall_epilogue(name);
 908 }
 909 #endif
 910
 911 #ifdef TARGET_NR_mq_open
 912 static void
 913 print_mq_open(const struct syscallname *name,
 914     abi_long arg0, abi_long arg1, abi_long arg2,
 915     abi_long arg3, abi_long arg4, abi_long arg5)
 916 {
 917     int is_creat = (tswapl(arg1) & TARGET_O_CREAT);
 918
 919     print_syscall_prologue(name);
 920     print_string(arg0, 0);
 921     print_open_flags(arg1, (is_creat == 0));
 922     if (is_creat) {
 923         print_file_mode(arg2, 0);
 924         print_pointer(arg3, 1);
 925     }
 926     print_syscall_epilogue(name);
 927 }
 928 #endif
 929
 930 #ifdef TARGET_NR_open
 931 static void
 932 print_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 = (tswap32(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, 1);
 943     print_syscall_epilogue(name);
 944 }
 945 #endif
 946
 947 #ifdef TARGET_NR_openat
 948 static void
 949 print_openat(const struct syscallname *name,
 950     abi_long arg0, abi_long arg1, abi_long arg2,
 951     abi_long arg3, abi_long arg4, abi_long arg5)
 952 {
 953     int is_creat = (tswap32(arg2) & TARGET_O_CREAT);
 954
 955     print_syscall_prologue(name);
 956     print_at_dirfd(arg0, 0);
 957     print_string(arg1, 0);
 958     print_open_flags(arg2, (is_creat == 0));
 959     if (is_creat)
 960         print_file_mode(arg3, 1);
 961     print_syscall_epilogue(name);
 962 }
 963 #endif
 964
 965 #ifdef TARGET_NR_mq_unlink
 966 static void
 967 print_mq_unlink(const struct syscallname *name,
 968     abi_long arg0, abi_long arg1, abi_long arg2,
 969     abi_long arg3, abi_long arg4, abi_long arg5)
 970 {
 971     print_syscall_prologue(name);
 972     print_string(arg0, 1);
 973     print_syscall_epilogue(name);
 974 }
 975 #endif
 976
 977 #if defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)
 978 static void
 979 print_fstatat64(const struct syscallname *name,
 980     abi_long arg0, abi_long arg1, abi_long arg2,
 981     abi_long arg3, abi_long arg4, abi_long arg5)
 982 {
 983     print_syscall_prologue(name);
 984     print_at_dirfd(arg0, 0);
 985     print_string(arg1, 0);
 986     print_pointer(arg2, 0);
 987     print_flags(at_file_flags, arg3, 1);
 988     print_syscall_epilogue(name);
 989 }
 990 #define print_newfstatat    print_fstatat64
 991 #endif
 992
 993 #ifdef TARGET_NR_readlink
 994 static void
 995 print_readlink(const struct syscallname *name,
 996     abi_long arg0, abi_long arg1, abi_long arg2,
 997     abi_long arg3, abi_long arg4, abi_long arg5)
 998 {
 999     print_syscall_prologue(name);
1000     print_string(arg0, 0);
1001     print_pointer(arg1, 0);
1002     print_raw_param("%u", tswapl(arg2), 1);
1003     print_syscall_epilogue(name);
1004 }
1005 #endif
1006
1007 #ifdef TARGET_NR_readlinkat
1008 static void
1009 print_readlinkat(const struct syscallname *name,
1010     abi_long arg0, abi_long arg1, abi_long arg2,
1011     abi_long arg3, abi_long arg4, abi_long arg5)
1012 {
1013     print_syscall_prologue(name);
1014     print_at_dirfd(arg0, 0);
1015     print_string(arg1, 0);
1016     print_pointer(arg2, 0);
1017     print_raw_param("%u", tswapl(arg3), 1);
1018     print_syscall_epilogue(name);
1019 }
1020 #endif
1021
1022 #ifdef TARGET_NR_rename
1023 static void
1024 print_rename(const struct syscallname *name,
1025     abi_long arg0, abi_long arg1, abi_long arg2,
1026     abi_long arg3, abi_long arg4, abi_long arg5)
1027 {
1028     print_syscall_prologue(name);
1029     print_string(arg0, 0);
1030     print_string(arg1, 1);
1031     print_syscall_epilogue(name);
1032 }
1033 #endif
1034
1035 #ifdef TARGET_NR_renameat
1036 static void
1037 print_renameat(const struct syscallname *name,
1038     abi_long arg0, abi_long arg1, abi_long arg2,
1039     abi_long arg3, abi_long arg4, abi_long arg5)
1040 {
1041     print_syscall_prologue(name);
1042     print_at_dirfd(arg0, 0);
1043     print_string(arg1, 0);
1044     print_at_dirfd(arg2, 0);
1045     print_string(arg3, 1);
1046     print_syscall_epilogue(name);
1047 }
1048 #endif
1049
1050 #ifdef TARGET_NR_statfs
1051 static void
1052 print_statfs(const struct syscallname *name,
1053     abi_long arg0, abi_long arg1, abi_long arg2,
1054     abi_long arg3, abi_long arg4, abi_long arg5)
1055 {
1056     print_syscall_prologue(name);
1057     print_string(arg0, 0);
1058     print_pointer(arg1, 1);
1059     print_syscall_epilogue(name);
1060 }
1061 #define print_statfs64  print_statfs
1062 #endif
1063
1064 #ifdef TARGET_NR_symlink
1065 static void
1066 print_symlink(const struct syscallname *name,
1067     abi_long arg0, abi_long arg1, abi_long arg2,
1068     abi_long arg3, abi_long arg4, abi_long arg5)
1069 {
1070     print_syscall_prologue(name);
1071     print_string(arg0, 0);
1072     print_string(arg1, 1);
1073     print_syscall_epilogue(name);
1074 }
1075 #endif
1076
1077 #ifdef TARGET_NR_symlinkat
1078 static void
1079 print_symlinkat(const struct syscallname *name,
1080     abi_long arg0, abi_long arg1, abi_long arg2,
1081     abi_long arg3, abi_long arg4, abi_long arg5)
1082 {
1083     print_syscall_prologue(name);
1084     print_string(arg0, 0);
1085     print_at_dirfd(arg1, 0);
1086     print_string(arg2, 1);
1087     print_syscall_epilogue(name);
1088 }
1089 #endif
1090
1091 #ifdef TARGET_NR_mount
1092 static void
1093 print_mount(const struct syscallname *name,
1094     abi_long arg0, abi_long arg1, abi_long arg2,
1095     abi_long arg3, abi_long arg4, abi_long arg5)
1096 {
1097     print_syscall_prologue(name);
1098     print_string(arg0, 0);
1099     print_string(arg1, 0);
1100     print_string(arg2, 0);
1101     print_flags(mount_flags, arg3, 0);
1102     print_pointer(arg4, 1);
1103     print_syscall_epilogue(name);
1104 }
1105 #endif
1106
1107 #ifdef TARGET_NR_umount
1108 static void
1109 print_umount(const struct syscallname *name,
1110     abi_long arg0, abi_long arg1, abi_long arg2,
1111     abi_long arg3, abi_long arg4, abi_long arg5)
1112 {
1113     print_syscall_prologue(name);
1114     print_string(arg0, 1);
1115     print_syscall_epilogue(name);
1116 }
1117 #endif
1118
1119 #ifdef TARGET_NR_umount2
1120 static void
1121 print_umount2(const struct syscallname *name,
1122     abi_long arg0, abi_long arg1, abi_long arg2,
1123     abi_long arg3, abi_long arg4, abi_long arg5)
1124 {
1125     print_syscall_prologue(name);
1126     print_string(arg0, 0);
1127     print_flags(umount2_flags, arg1, 1);
1128     print_syscall_epilogue(name);
1129 }
1130 #endif
1131
1132 #ifdef TARGET_NR_unlink
1133 static void
1134 print_unlink(const struct syscallname *name,
1135     abi_long arg0, abi_long arg1, abi_long arg2,
1136     abi_long arg3, abi_long arg4, abi_long arg5)
1137 {
1138     print_syscall_prologue(name);
1139     print_string(arg0, 1);
1140     print_syscall_epilogue(name);
1141 }
1142 #endif
1143
1144 #ifdef TARGET_NR_unlinkat
1145 static void
1146 print_unlinkat(const struct syscallname *name,
1147     abi_long arg0, abi_long arg1, abi_long arg2,
1148     abi_long arg3, abi_long arg4, abi_long arg5)
1149 {
1150     print_syscall_prologue(name);
1151     print_at_dirfd(arg0, 0);
1152     print_string(arg1, 0);
1153     print_flags(unlinkat_flags, arg2, 1);
1154     print_syscall_epilogue(name);
1155 }
1156 #endif
1157
1158 #ifdef TARGET_NR_utime
1159 static void
1160 print_utime(const struct syscallname *name,
1161     abi_long arg0, abi_long arg1, abi_long arg2,
1162     abi_long arg3, abi_long arg4, abi_long arg5)
1163 {
1164     print_syscall_prologue(name);
1165     print_string(arg0, 0);
1166     print_pointer(arg1, 1);
1167     print_syscall_epilogue(name);
1168 }
1169 #endif
1170
1171 #ifdef TARGET_NR_utimes
1172 static void
1173 print_utimes(const struct syscallname *name,
1174     abi_long arg0, abi_long arg1, abi_long arg2,
1175     abi_long arg3, abi_long arg4, abi_long arg5)
1176 {
1177     print_syscall_prologue(name);
1178     print_string(arg0, 0);
1179     print_pointer(arg1, 1);
1180     print_syscall_epilogue(name);
1181 }
1182 #endif
1183
1184 #ifdef TARGET_NR_utimensat
1185 static void
1186 print_utimensat(const struct syscallname *name,
1187     abi_long arg0, abi_long arg1, abi_long arg2,
1188     abi_long arg3, abi_long arg4, abi_long arg5)
1189 {
1190     print_syscall_prologue(name);
1191     print_at_dirfd(arg0, 0);
1192     print_string(arg1, 0);
1193     print_pointer(arg2, 0);
1194     print_flags(at_file_flags, arg3, 1);
1195     print_syscall_epilogue(name);
1196 }
1197 #endif
1198
1199 #ifdef TARGET_NR_mmap
1200 static void
1201 print_mmap(const struct syscallname *name,
1202     abi_long arg0, abi_long arg1, abi_long arg2,
1203     abi_long arg3, abi_long arg4, abi_long arg5)
1204 {
1205     print_syscall_prologue(name);
1206     print_pointer(arg0, 0);
1207     print_raw_param("%d", tswapl(arg1), 0);
1208     print_flags(mmap_prot_flags, arg2, 0);
1209     print_flags(mmap_flags, arg3, 0);
1210     print_raw_param("%d", tswapl(arg4), 0);
1211     print_raw_param("%#x", tswapl(arg5), 1);
1212     print_syscall_epilogue(name);
1213 }
1214 #define print_mmap2     print_mmap
1215 #endif
1216
1217 #ifdef TARGET_NR_mprotect
1218 static void
1219 print_mprotect(const struct syscallname *name,
1220     abi_long arg0, abi_long arg1, abi_long arg2,
1221     abi_long arg3, abi_long arg4, abi_long arg5)
1222 {
1223     print_syscall_prologue(name);
1224     print_pointer(arg0, 0);
1225     print_raw_param("%d", tswapl(arg1), 0);
1226     print_flags(mmap_prot_flags, arg2, 1);
1227     print_syscall_epilogue(name);
1228 }
1229 #endif
1230
1231 #ifdef TARGET_NR_munmap
1232 static void
1233 print_munmap(const struct syscallname *name,
1234     abi_long arg0, abi_long arg1, abi_long arg2,
1235     abi_long arg3, abi_long arg4, abi_long arg5)
1236 {
1237     print_syscall_prologue(name);
1238     print_pointer(arg0, 0);
1239     print_raw_param("%d", tswapl(arg1), 1);
1240     print_syscall_epilogue(name);
1241 }
1242 #endif
1243
1244 #ifdef TARGET_NR_futex
1245 static void print_futex_op(abi_long tflag, int last)
1246 {
1247 #define print_op(val) \
1248 if( cmd == val ) { \
1249     gemu_log(#val); \
1250     return; \
1251 }
1252
1253     int cmd = (int)tswap32(tflag);
1254 #ifdef FUTEX_PRIVATE_FLAG
1255     if (cmd & FUTEX_PRIVATE_FLAG) {
1256         gemu_log("FUTEX_PRIVATE_FLAG|");
1257         cmd &= ~FUTEX_PRIVATE_FLAG;
1258     }
1259 #endif
1260     print_op(FUTEX_WAIT)
1261     print_op(FUTEX_WAKE)
1262     print_op(FUTEX_FD)
1263     print_op(FUTEX_REQUEUE)
1264     print_op(FUTEX_CMP_REQUEUE)
1265     print_op(FUTEX_WAKE_OP)
1266     print_op(FUTEX_LOCK_PI)
1267     print_op(FUTEX_UNLOCK_PI)
1268     print_op(FUTEX_TRYLOCK_PI)
1269 #ifdef FUTEX_WAIT_BITSET
1270     print_op(FUTEX_WAIT_BITSET)
1271 #endif
1272 #ifdef FUTEX_WAKE_BITSET
1273     print_op(FUTEX_WAKE_BITSET)
1274 #endif
1275     /* unknown values */
1276     gemu_log("%d",cmd);
1277 }
1278
1279 static void
1280 print_futex(const struct syscallname *name,
1281     abi_long arg0, abi_long arg1, abi_long arg2,
1282     abi_long arg3, abi_long arg4, abi_long arg5)
1283 {
1284     print_syscall_prologue(name);
1285     print_pointer(arg0, 0);
1286     print_futex_op(arg1, 0);
1287     print_raw_param(",%d", tswapl(arg2), 0);
1288     print_pointer(arg3, 0); /* struct timespec */
1289     print_pointer(arg4, 0);
1290     print_raw_param("%d", tswapl(arg4), 1);
1291     print_syscall_epilogue(name);
1292 }
1293 #endif
1294
1295 /*
1296  * An array of all of the syscalls we know about
1297  */
1298
1299 static const struct syscallname scnames[] = {
1300 #include "strace.list"
1301 };
1302
1303 static int nsyscalls = ARRAY_SIZE(scnames);
1304
1305 /*
1306  * The public interface to this module.
1307  */
1308 void
1309 print_syscall(int num,
1310               abi_long arg1, abi_long arg2, abi_long arg3,
1311               abi_long arg4, abi_long arg5, abi_long arg6)
1312 {
1313     int i;
1314     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 ")";
1315
1316     gemu_log("%d ", getpid() );
1317
1318     for(i=0;i<nsyscalls;i++)
1319         if( scnames[i].nr == num ) {
1320             if( scnames[i].call != NULL ) {
1321                 scnames[i].call(&scnames[i],arg1,arg2,arg3,arg4,arg5,arg6);
1322             } else {
1323                 /* XXX: this format system is broken because it uses
1324                    host types and host pointers for strings */
1325                 if( scnames[i].format != NULL )
1326                     format = scnames[i].format;
1327                 gemu_log(format,scnames[i].name, arg1,arg2,arg3,arg4,arg5,arg6);
1328             }
1329             return;
1330         }
1331     gemu_log("Unknown syscall %d\n", num);
1332 }
1333
1334
1335 void
1336 print_syscall_ret(int num, abi_long ret)
1337 {
1338     int i;
1339
1340     for(i=0;i<nsyscalls;i++)
1341         if( scnames[i].nr == num ) {
1342             if( scnames[i].result != NULL ) {
1343                 scnames[i].result(&scnames[i],ret);
1344             } else {
1345                 if( ret < 0 ) {
1346                     gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n", -ret, target_strerror(-ret));
1347                 } else {
1348                     gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
1349                 }
1350             }
1351             break;
1352         }
1353 }