xref: /qemu/linux-user/strace.c (revision 9be38598)
1 #include "qemu/osdep.h"
2 #include <sys/ipc.h>
3 #include <sys/msg.h>
4 #include <sys/sem.h>
5 #include <sys/shm.h>
6 #include <sys/select.h>
7 #include <sys/mount.h>
8 #include <sched.h>
9 #include "qemu.h"
10 
11 int do_strace=0;
12 
13 struct syscallname {
14     int nr;
15     const char *name;
16     const char *format;
17     void (*call)(const struct syscallname *,
18                  abi_long, abi_long, abi_long,
19                  abi_long, abi_long, abi_long);
20     void (*result)(const struct syscallname *, abi_long);
21 };
22 
23 #ifdef __GNUC__
24 /*
25  * It is possible that target doesn't have syscall that uses
26  * following flags but we don't want the compiler to warn
27  * us about them being unused.  Same applies to utility print
28  * functions.  It is ok to keep them while not used.
29  */
30 #define UNUSED __attribute__ ((unused))
31 #else
32 #define UNUSED
33 #endif
34 
35 /*
36  * Structure used to translate flag values into strings.  This is
37  * similar that is in the actual strace tool.
38  */
39 struct flags {
40     abi_long    f_value;  /* flag */
41     const char  *f_string; /* stringified flag */
42 };
43 
44 /* common flags for all architectures */
45 #define FLAG_GENERIC(name) { name, #name }
46 /* target specific flags (syscall_defs.h has TARGET_<flag>) */
47 #define FLAG_TARGET(name)  { TARGET_ ## name, #name }
48 /* end of flags array */
49 #define FLAG_END           { 0, NULL }
50 
51 UNUSED static const char *get_comma(int);
52 UNUSED static void print_pointer(abi_long, int);
53 UNUSED static void print_flags(const struct flags *, abi_long, int);
54 UNUSED static void print_at_dirfd(abi_long, int);
55 UNUSED static void print_file_mode(abi_long, int);
56 UNUSED static void print_open_flags(abi_long, int);
57 UNUSED static void print_syscall_prologue(const struct syscallname *);
58 UNUSED static void print_syscall_epilogue(const struct syscallname *);
59 UNUSED static void print_string(abi_long, int);
60 UNUSED static void print_raw_param(const char *, abi_long, int);
61 UNUSED static void print_timeval(abi_ulong, int);
62 UNUSED static void print_number(abi_long, int);
63 UNUSED static void print_signal(abi_ulong, int);
64 
65 /*
66  * Utility functions
67  */
68 static void
69 print_ipc_cmd(int cmd)
70 {
71 #define output_cmd(val) \
72 if( cmd == val ) { \
73     gemu_log(#val); \
74     return; \
75 }
76 
77     cmd &= 0xff;
78 
79     /* General IPC commands */
80     output_cmd( IPC_RMID );
81     output_cmd( IPC_SET );
82     output_cmd( IPC_STAT );
83     output_cmd( IPC_INFO );
84     /* msgctl() commands */
85     #ifdef __USER_MISC
86     output_cmd( MSG_STAT );
87     output_cmd( MSG_INFO );
88     #endif
89     /* shmctl() commands */
90     output_cmd( SHM_LOCK );
91     output_cmd( SHM_UNLOCK );
92     output_cmd( SHM_STAT );
93     output_cmd( SHM_INFO );
94     /* semctl() commands */
95     output_cmd( GETPID );
96     output_cmd( GETVAL );
97     output_cmd( GETALL );
98     output_cmd( GETNCNT );
99     output_cmd( GETZCNT );
100     output_cmd( SETVAL );
101     output_cmd( SETALL );
102     output_cmd( SEM_STAT );
103     output_cmd( SEM_INFO );
104     output_cmd( IPC_RMID );
105     output_cmd( IPC_RMID );
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 
114     /* Some value we don't recognize */
115     gemu_log("%d",cmd);
116 }
117 
118 static void
119 print_signal(abi_ulong arg, int last)
120 {
121     const char *signal_name = NULL;
122     switch(arg) {
123     case TARGET_SIGHUP: signal_name = "SIGHUP"; break;
124     case TARGET_SIGINT: signal_name = "SIGINT"; break;
125     case TARGET_SIGQUIT: signal_name = "SIGQUIT"; break;
126     case TARGET_SIGILL: signal_name = "SIGILL"; break;
127     case TARGET_SIGABRT: signal_name = "SIGABRT"; break;
128     case TARGET_SIGFPE: signal_name = "SIGFPE"; break;
129     case TARGET_SIGKILL: signal_name = "SIGKILL"; break;
130     case TARGET_SIGSEGV: signal_name = "SIGSEGV"; break;
131     case TARGET_SIGPIPE: signal_name = "SIGPIPE"; break;
132     case TARGET_SIGALRM: signal_name = "SIGALRM"; break;
133     case TARGET_SIGTERM: signal_name = "SIGTERM"; break;
134     case TARGET_SIGUSR1: signal_name = "SIGUSR1"; break;
135     case TARGET_SIGUSR2: signal_name = "SIGUSR2"; break;
136     case TARGET_SIGCHLD: signal_name = "SIGCHLD"; break;
137     case TARGET_SIGCONT: signal_name = "SIGCONT"; break;
138     case TARGET_SIGSTOP: signal_name = "SIGSTOP"; break;
139     case TARGET_SIGTTIN: signal_name = "SIGTTIN"; break;
140     case TARGET_SIGTTOU: signal_name = "SIGTTOU"; break;
141     }
142     if (signal_name == NULL) {
143         print_raw_param("%ld", arg, last);
144         return;
145     }
146     gemu_log("%s%s", signal_name, get_comma(last));
147 }
148 
149 #ifdef TARGET_NR__newselect
150 static void
151 print_fdset(int n, abi_ulong target_fds_addr)
152 {
153     int i;
154 
155     gemu_log("[");
156     if( target_fds_addr ) {
157         abi_long *target_fds;
158 
159         target_fds = lock_user(VERIFY_READ,
160                                target_fds_addr,
161                                sizeof(*target_fds)*(n / TARGET_ABI_BITS + 1),
162                                1);
163 
164         if (!target_fds)
165             return;
166 
167         for (i=n; i>=0; i--) {
168             if ((tswapal(target_fds[i / TARGET_ABI_BITS]) >> (i & (TARGET_ABI_BITS - 1))) & 1)
169                 gemu_log("%d,", i );
170             }
171         unlock_user(target_fds, target_fds_addr, 0);
172     }
173     gemu_log("]");
174 }
175 #endif
176 
177 /*
178  * Sysycall specific output functions
179  */
180 
181 /* select */
182 #ifdef TARGET_NR__newselect
183 static long newselect_arg1 = 0;
184 static long newselect_arg2 = 0;
185 static long newselect_arg3 = 0;
186 static long newselect_arg4 = 0;
187 static long newselect_arg5 = 0;
188 
189 static void
190 print_newselect(const struct syscallname *name,
191                 abi_long arg1, abi_long arg2, abi_long arg3,
192                 abi_long arg4, abi_long arg5, abi_long arg6)
193 {
194     gemu_log("%s(" TARGET_ABI_FMT_ld ",", name->name, arg1);
195     print_fdset(arg1, arg2);
196     gemu_log(",");
197     print_fdset(arg1, arg3);
198     gemu_log(",");
199     print_fdset(arg1, arg4);
200     gemu_log(",");
201     print_timeval(arg5, 1);
202     gemu_log(")");
203 
204     /* save for use in the return output function below */
205     newselect_arg1=arg1;
206     newselect_arg2=arg2;
207     newselect_arg3=arg3;
208     newselect_arg4=arg4;
209     newselect_arg5=arg5;
210 }
211 #endif
212 
213 #ifdef TARGET_NR_semctl
214 static void
215 print_semctl(const struct syscallname *name,
216              abi_long arg1, abi_long arg2, abi_long arg3,
217              abi_long arg4, abi_long arg5, abi_long arg6)
218 {
219     gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", name->name, arg1, arg2);
220     print_ipc_cmd(arg3);
221     gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
222 }
223 #endif
224 
225 static void
226 print_execve(const struct syscallname *name,
227              abi_long arg1, abi_long arg2, abi_long arg3,
228              abi_long arg4, abi_long arg5, abi_long arg6)
229 {
230     abi_ulong arg_ptr_addr;
231     char *s;
232 
233     if (!(s = lock_user_string(arg1)))
234         return;
235     gemu_log("%s(\"%s\",{", name->name, s);
236     unlock_user(s, arg1, 0);
237 
238     for (arg_ptr_addr = arg2; ; arg_ptr_addr += sizeof(abi_ulong)) {
239         abi_ulong *arg_ptr, arg_addr;
240 
241 	arg_ptr = lock_user(VERIFY_READ, arg_ptr_addr, sizeof(abi_ulong), 1);
242         if (!arg_ptr)
243             return;
244     arg_addr = tswapal(*arg_ptr);
245 	unlock_user(arg_ptr, arg_ptr_addr, 0);
246         if (!arg_addr)
247             break;
248         if ((s = lock_user_string(arg_addr))) {
249             gemu_log("\"%s\",", s);
250             unlock_user(s, arg_addr, 0);
251         }
252     }
253 
254     gemu_log("NULL})");
255 }
256 
257 #ifdef TARGET_NR_ipc
258 static void
259 print_ipc(const struct syscallname *name,
260           abi_long arg1, abi_long arg2, abi_long arg3,
261           abi_long arg4, abi_long arg5, abi_long arg6)
262 {
263     switch(arg1) {
264     case IPCOP_semctl:
265         gemu_log("semctl(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", arg1, arg2);
266         print_ipc_cmd(arg3);
267         gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
268         break;
269     default:
270         gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ")",
271                  name->name, arg1, arg2, arg3, arg4);
272     }
273 }
274 #endif
275 
276 /*
277  * Variants for the return value output function
278  */
279 
280 static void
281 print_syscall_ret_addr(const struct syscallname *name, abi_long ret)
282 {
283     const char *errstr = NULL;
284 
285     if (ret < 0) {
286         errstr = target_strerror(-ret);
287     }
288     if (errstr) {
289         gemu_log(" = -1 errno=%d (%s)\n", (int)-ret, errstr);
290     } else {
291         gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
292     }
293 }
294 
295 #if 0 /* currently unused */
296 static void
297 print_syscall_ret_raw(struct syscallname *name, abi_long ret)
298 {
299         gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
300 }
301 #endif
302 
303 #ifdef TARGET_NR__newselect
304 static void
305 print_syscall_ret_newselect(const struct syscallname *name, abi_long ret)
306 {
307     gemu_log(" = 0x" TARGET_ABI_FMT_lx " (", ret);
308     print_fdset(newselect_arg1,newselect_arg2);
309     gemu_log(",");
310     print_fdset(newselect_arg1,newselect_arg3);
311     gemu_log(",");
312     print_fdset(newselect_arg1,newselect_arg4);
313     gemu_log(",");
314     print_timeval(newselect_arg5, 1);
315     gemu_log(")\n");
316 }
317 #endif
318 
319 UNUSED static struct flags access_flags[] = {
320     FLAG_GENERIC(F_OK),
321     FLAG_GENERIC(R_OK),
322     FLAG_GENERIC(W_OK),
323     FLAG_GENERIC(X_OK),
324     FLAG_END,
325 };
326 
327 UNUSED static struct flags at_file_flags[] = {
328 #ifdef AT_EACCESS
329     FLAG_GENERIC(AT_EACCESS),
330 #endif
331 #ifdef AT_SYMLINK_NOFOLLOW
332     FLAG_GENERIC(AT_SYMLINK_NOFOLLOW),
333 #endif
334     FLAG_END,
335 };
336 
337 UNUSED static struct flags unlinkat_flags[] = {
338 #ifdef AT_REMOVEDIR
339     FLAG_GENERIC(AT_REMOVEDIR),
340 #endif
341     FLAG_END,
342 };
343 
344 UNUSED static struct flags mode_flags[] = {
345     FLAG_GENERIC(S_IFSOCK),
346     FLAG_GENERIC(S_IFLNK),
347     FLAG_GENERIC(S_IFREG),
348     FLAG_GENERIC(S_IFBLK),
349     FLAG_GENERIC(S_IFDIR),
350     FLAG_GENERIC(S_IFCHR),
351     FLAG_GENERIC(S_IFIFO),
352     FLAG_END,
353 };
354 
355 UNUSED static struct flags open_access_flags[] = {
356     FLAG_TARGET(O_RDONLY),
357     FLAG_TARGET(O_WRONLY),
358     FLAG_TARGET(O_RDWR),
359     FLAG_END,
360 };
361 
362 UNUSED static struct flags open_flags[] = {
363     FLAG_TARGET(O_APPEND),
364     FLAG_TARGET(O_CREAT),
365     FLAG_TARGET(O_DIRECTORY),
366     FLAG_TARGET(O_EXCL),
367     FLAG_TARGET(O_LARGEFILE),
368     FLAG_TARGET(O_NOCTTY),
369     FLAG_TARGET(O_NOFOLLOW),
370     FLAG_TARGET(O_NONBLOCK),      /* also O_NDELAY */
371     FLAG_TARGET(O_DSYNC),
372     FLAG_TARGET(__O_SYNC),
373     FLAG_TARGET(O_TRUNC),
374 #ifdef O_DIRECT
375     FLAG_TARGET(O_DIRECT),
376 #endif
377 #ifdef O_NOATIME
378     FLAG_TARGET(O_NOATIME),
379 #endif
380 #ifdef O_CLOEXEC
381     FLAG_TARGET(O_CLOEXEC),
382 #endif
383 #ifdef O_PATH
384     FLAG_TARGET(O_PATH),
385 #endif
386     FLAG_END,
387 };
388 
389 UNUSED static struct flags mount_flags[] = {
390 #ifdef MS_BIND
391     FLAG_GENERIC(MS_BIND),
392 #endif
393 #ifdef MS_DIRSYNC
394     FLAG_GENERIC(MS_DIRSYNC),
395 #endif
396     FLAG_GENERIC(MS_MANDLOCK),
397 #ifdef MS_MOVE
398     FLAG_GENERIC(MS_MOVE),
399 #endif
400     FLAG_GENERIC(MS_NOATIME),
401     FLAG_GENERIC(MS_NODEV),
402     FLAG_GENERIC(MS_NODIRATIME),
403     FLAG_GENERIC(MS_NOEXEC),
404     FLAG_GENERIC(MS_NOSUID),
405     FLAG_GENERIC(MS_RDONLY),
406 #ifdef MS_RELATIME
407     FLAG_GENERIC(MS_RELATIME),
408 #endif
409     FLAG_GENERIC(MS_REMOUNT),
410     FLAG_GENERIC(MS_SYNCHRONOUS),
411     FLAG_END,
412 };
413 
414 UNUSED static struct flags umount2_flags[] = {
415 #ifdef MNT_FORCE
416     FLAG_GENERIC(MNT_FORCE),
417 #endif
418 #ifdef MNT_DETACH
419     FLAG_GENERIC(MNT_DETACH),
420 #endif
421 #ifdef MNT_EXPIRE
422     FLAG_GENERIC(MNT_EXPIRE),
423 #endif
424     FLAG_END,
425 };
426 
427 UNUSED static struct flags mmap_prot_flags[] = {
428     FLAG_GENERIC(PROT_NONE),
429     FLAG_GENERIC(PROT_EXEC),
430     FLAG_GENERIC(PROT_READ),
431     FLAG_GENERIC(PROT_WRITE),
432     FLAG_TARGET(PROT_SEM),
433     FLAG_GENERIC(PROT_GROWSDOWN),
434     FLAG_GENERIC(PROT_GROWSUP),
435     FLAG_END,
436 };
437 
438 UNUSED static struct flags mmap_flags[] = {
439     FLAG_TARGET(MAP_SHARED),
440     FLAG_TARGET(MAP_PRIVATE),
441     FLAG_TARGET(MAP_ANONYMOUS),
442     FLAG_TARGET(MAP_DENYWRITE),
443     FLAG_TARGET(MAP_FIXED),
444     FLAG_TARGET(MAP_GROWSDOWN),
445     FLAG_TARGET(MAP_EXECUTABLE),
446 #ifdef MAP_LOCKED
447     FLAG_TARGET(MAP_LOCKED),
448 #endif
449 #ifdef MAP_NONBLOCK
450     FLAG_TARGET(MAP_NONBLOCK),
451 #endif
452     FLAG_TARGET(MAP_NORESERVE),
453 #ifdef MAP_POPULATE
454     FLAG_TARGET(MAP_POPULATE),
455 #endif
456 #ifdef TARGET_MAP_UNINITIALIZED
457     FLAG_TARGET(MAP_UNINITIALIZED),
458 #endif
459     FLAG_END,
460 };
461 
462 UNUSED static struct flags clone_flags[] = {
463     FLAG_GENERIC(CLONE_VM),
464     FLAG_GENERIC(CLONE_FS),
465     FLAG_GENERIC(CLONE_FILES),
466     FLAG_GENERIC(CLONE_SIGHAND),
467     FLAG_GENERIC(CLONE_PTRACE),
468     FLAG_GENERIC(CLONE_VFORK),
469     FLAG_GENERIC(CLONE_PARENT),
470     FLAG_GENERIC(CLONE_THREAD),
471     FLAG_GENERIC(CLONE_NEWNS),
472     FLAG_GENERIC(CLONE_SYSVSEM),
473     FLAG_GENERIC(CLONE_SETTLS),
474     FLAG_GENERIC(CLONE_PARENT_SETTID),
475     FLAG_GENERIC(CLONE_CHILD_CLEARTID),
476     FLAG_GENERIC(CLONE_DETACHED),
477     FLAG_GENERIC(CLONE_UNTRACED),
478     FLAG_GENERIC(CLONE_CHILD_SETTID),
479 #if defined(CLONE_NEWUTS)
480     FLAG_GENERIC(CLONE_NEWUTS),
481 #endif
482 #if defined(CLONE_NEWIPC)
483     FLAG_GENERIC(CLONE_NEWIPC),
484 #endif
485 #if defined(CLONE_NEWUSER)
486     FLAG_GENERIC(CLONE_NEWUSER),
487 #endif
488 #if defined(CLONE_NEWPID)
489     FLAG_GENERIC(CLONE_NEWPID),
490 #endif
491 #if defined(CLONE_NEWNET)
492     FLAG_GENERIC(CLONE_NEWNET),
493 #endif
494 #if defined(CLONE_IO)
495     FLAG_GENERIC(CLONE_IO),
496 #endif
497     FLAG_END,
498 };
499 
500 /*
501  * print_xxx utility functions.  These are used to print syscall
502  * parameters in certain format.  All of these have parameter
503  * named 'last'.  This parameter is used to add comma to output
504  * when last == 0.
505  */
506 
507 static const char *
508 get_comma(int last)
509 {
510     return ((last) ? "" : ",");
511 }
512 
513 static void
514 print_flags(const struct flags *f, abi_long flags, int last)
515 {
516     const char *sep = "";
517     int n;
518 
519     if ((flags == 0) && (f->f_value == 0)) {
520         gemu_log("%s%s", f->f_string, get_comma(last));
521         return;
522     }
523     for (n = 0; f->f_string != NULL; f++) {
524         if ((f->f_value != 0) && ((flags & f->f_value) == f->f_value)) {
525             gemu_log("%s%s", sep, f->f_string);
526             flags &= ~f->f_value;
527             sep = "|";
528             n++;
529         }
530     }
531 
532     if (n > 0) {
533         /* print rest of the flags as numeric */
534         if (flags != 0) {
535             gemu_log("%s%#x%s", sep, (unsigned int)flags, get_comma(last));
536         } else {
537             gemu_log("%s", get_comma(last));
538         }
539     } else {
540         /* no string version of flags found, print them in hex then */
541         gemu_log("%#x%s", (unsigned int)flags, get_comma(last));
542     }
543 }
544 
545 static void
546 print_at_dirfd(abi_long dirfd, int last)
547 {
548 #ifdef AT_FDCWD
549     if (dirfd == AT_FDCWD) {
550         gemu_log("AT_FDCWD%s", get_comma(last));
551         return;
552     }
553 #endif
554     gemu_log("%d%s", (int)dirfd, get_comma(last));
555 }
556 
557 static void
558 print_file_mode(abi_long mode, int last)
559 {
560     const char *sep = "";
561     const struct flags *m;
562 
563     for (m = &mode_flags[0]; m->f_string != NULL; m++) {
564         if ((m->f_value & mode) == m->f_value) {
565             gemu_log("%s%s", m->f_string, sep);
566             sep = "|";
567             mode &= ~m->f_value;
568             break;
569         }
570     }
571 
572     mode &= ~S_IFMT;
573     /* print rest of the mode as octal */
574     if (mode != 0)
575         gemu_log("%s%#o", sep, (unsigned int)mode);
576 
577     gemu_log("%s", get_comma(last));
578 }
579 
580 static void
581 print_open_flags(abi_long flags, int last)
582 {
583     print_flags(open_access_flags, flags & TARGET_O_ACCMODE, 1);
584     flags &= ~TARGET_O_ACCMODE;
585     if (flags == 0) {
586         gemu_log("%s", get_comma(last));
587         return;
588     }
589     gemu_log("|");
590     print_flags(open_flags, flags, last);
591 }
592 
593 static void
594 print_syscall_prologue(const struct syscallname *sc)
595 {
596     gemu_log("%s(", sc->name);
597 }
598 
599 /*ARGSUSED*/
600 static void
601 print_syscall_epilogue(const struct syscallname *sc)
602 {
603     (void)sc;
604     gemu_log(")");
605 }
606 
607 static void
608 print_string(abi_long addr, int last)
609 {
610     char *s;
611 
612     if ((s = lock_user_string(addr)) != NULL) {
613         gemu_log("\"%s\"%s", s, get_comma(last));
614         unlock_user(s, addr, 0);
615     } else {
616         /* can't get string out of it, so print it as pointer */
617         print_pointer(addr, last);
618     }
619 }
620 
621 /*
622  * Prints out raw parameter using given format.  Caller needs
623  * to do byte swapping if needed.
624  */
625 static void
626 print_raw_param(const char *fmt, abi_long param, int last)
627 {
628     char format[64];
629 
630     (void) snprintf(format, sizeof (format), "%s%s", fmt, get_comma(last));
631     gemu_log(format, param);
632 }
633 
634 static void
635 print_pointer(abi_long p, int last)
636 {
637     if (p == 0)
638         gemu_log("NULL%s", get_comma(last));
639     else
640         gemu_log("0x" TARGET_ABI_FMT_lx "%s", p, get_comma(last));
641 }
642 
643 /*
644  * Reads 32-bit (int) number from guest address space from
645  * address 'addr' and prints it.
646  */
647 static void
648 print_number(abi_long addr, int last)
649 {
650     if (addr == 0) {
651         gemu_log("NULL%s", get_comma(last));
652     } else {
653         int num;
654 
655         get_user_s32(num, addr);
656         gemu_log("[%d]%s", num, get_comma(last));
657     }
658 }
659 
660 static void
661 print_timeval(abi_ulong tv_addr, int last)
662 {
663     if( tv_addr ) {
664         struct target_timeval *tv;
665 
666         tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1);
667         if (!tv)
668             return;
669         gemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s",
670             tswapal(tv->tv_sec), tswapal(tv->tv_usec), get_comma(last));
671         unlock_user(tv, tv_addr, 0);
672     } else
673         gemu_log("NULL%s", get_comma(last));
674 }
675 
676 #undef UNUSED
677 
678 #ifdef TARGET_NR_accept
679 static void
680 print_accept(const struct syscallname *name,
681     abi_long arg0, abi_long arg1, abi_long arg2,
682     abi_long arg3, abi_long arg4, abi_long arg5)
683 {
684     print_syscall_prologue(name);
685     print_raw_param("%d", arg0, 0);
686     print_pointer(arg1, 0);
687     print_number(arg2, 1);
688     print_syscall_epilogue(name);
689 }
690 #endif
691 
692 #ifdef TARGET_NR_access
693 static void
694 print_access(const struct syscallname *name,
695     abi_long arg0, abi_long arg1, abi_long arg2,
696     abi_long arg3, abi_long arg4, abi_long arg5)
697 {
698     print_syscall_prologue(name);
699     print_string(arg0, 0);
700     print_flags(access_flags, arg1, 1);
701     print_syscall_epilogue(name);
702 }
703 #endif
704 
705 #ifdef TARGET_NR_brk
706 static void
707 print_brk(const struct syscallname *name,
708     abi_long arg0, abi_long arg1, abi_long arg2,
709     abi_long arg3, abi_long arg4, abi_long arg5)
710 {
711     print_syscall_prologue(name);
712     print_pointer(arg0, 1);
713     print_syscall_epilogue(name);
714 }
715 #endif
716 
717 #ifdef TARGET_NR_chdir
718 static void
719 print_chdir(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_string(arg0, 1);
725     print_syscall_epilogue(name);
726 }
727 #endif
728 
729 #ifdef TARGET_NR_chmod
730 static void
731 print_chmod(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_string(arg0, 0);
737     print_file_mode(arg1, 1);
738     print_syscall_epilogue(name);
739 }
740 #endif
741 
742 #ifdef TARGET_NR_clone
743 static void
744 print_clone(const struct syscallname *name,
745     abi_long arg0, abi_long arg1, abi_long arg2,
746     abi_long arg3, abi_long arg4, abi_long arg5)
747 {
748     print_syscall_prologue(name);
749 #if defined(TARGET_M68K)
750     print_flags(clone_flags, arg0, 0);
751     print_raw_param("newsp=0x" TARGET_ABI_FMT_lx, arg1, 1);
752 #elif defined(TARGET_SH4) || defined(TARGET_ALPHA)
753     print_flags(clone_flags, arg0, 0);
754     print_raw_param("child_stack=0x" TARGET_ABI_FMT_lx, arg1, 0);
755     print_raw_param("parent_tidptr=0x" TARGET_ABI_FMT_lx, arg2, 0);
756     print_raw_param("child_tidptr=0x" TARGET_ABI_FMT_lx, arg3, 0);
757     print_raw_param("tls=0x" TARGET_ABI_FMT_lx, arg4, 1);
758 #elif defined(TARGET_CRIS)
759     print_raw_param("child_stack=0x" TARGET_ABI_FMT_lx, arg0, 0);
760     print_flags(clone_flags, arg1, 0);
761     print_raw_param("parent_tidptr=0x" TARGET_ABI_FMT_lx, arg2, 0);
762     print_raw_param("tls=0x" TARGET_ABI_FMT_lx, arg3, 0);
763     print_raw_param("child_tidptr=0x" TARGET_ABI_FMT_lx, arg4, 1);
764 #else
765     print_flags(clone_flags, arg0, 0);
766     print_raw_param("child_stack=0x" TARGET_ABI_FMT_lx, arg1, 0);
767     print_raw_param("parent_tidptr=0x" TARGET_ABI_FMT_lx, arg2, 0);
768     print_raw_param("tls=0x" TARGET_ABI_FMT_lx, arg3, 0);
769     print_raw_param("child_tidptr=0x" TARGET_ABI_FMT_lx, arg4, 1);
770 #endif
771     print_syscall_epilogue(name);
772 }
773 #endif
774 
775 #ifdef TARGET_NR_creat
776 static void
777 print_creat(const struct syscallname *name,
778     abi_long arg0, abi_long arg1, abi_long arg2,
779     abi_long arg3, abi_long arg4, abi_long arg5)
780 {
781     print_syscall_prologue(name);
782     print_string(arg0, 0);
783     print_file_mode(arg1, 1);
784     print_syscall_epilogue(name);
785 }
786 #endif
787 
788 #ifdef TARGET_NR_execv
789 static void
790 print_execv(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_raw_param("0x" TARGET_ABI_FMT_lx, arg1, 1);
797     print_syscall_epilogue(name);
798 }
799 #endif
800 
801 #ifdef TARGET_NR_faccessat
802 static void
803 print_faccessat(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_flags(access_flags, arg2, 0);
811     print_flags(at_file_flags, arg3, 1);
812     print_syscall_epilogue(name);
813 }
814 #endif
815 
816 #ifdef TARGET_NR_fchmodat
817 static void
818 print_fchmodat(const struct syscallname *name,
819     abi_long arg0, abi_long arg1, abi_long arg2,
820     abi_long arg3, abi_long arg4, abi_long arg5)
821 {
822     print_syscall_prologue(name);
823     print_at_dirfd(arg0, 0);
824     print_string(arg1, 0);
825     print_file_mode(arg2, 0);
826     print_flags(at_file_flags, arg3, 1);
827     print_syscall_epilogue(name);
828 }
829 #endif
830 
831 #ifdef TARGET_NR_fchownat
832 static void
833 print_fchownat(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_at_dirfd(arg0, 0);
839     print_string(arg1, 0);
840     print_raw_param("%d", arg2, 0);
841     print_raw_param("%d", arg3, 0);
842     print_flags(at_file_flags, arg4, 1);
843     print_syscall_epilogue(name);
844 }
845 #endif
846 
847 #if defined(TARGET_NR_fcntl) || defined(TARGET_NR_fcntl64)
848 static void
849 print_fcntl(const struct syscallname *name,
850     abi_long arg0, abi_long arg1, abi_long arg2,
851     abi_long arg3, abi_long arg4, abi_long arg5)
852 {
853     print_syscall_prologue(name);
854     print_raw_param("%d", arg0, 0);
855     switch(arg1) {
856     case TARGET_F_DUPFD:
857         gemu_log("F_DUPFD,");
858         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
859         break;
860     case TARGET_F_GETFD:
861         gemu_log("F_GETFD");
862         break;
863     case TARGET_F_SETFD:
864         gemu_log("F_SETFD,");
865         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
866         break;
867     case TARGET_F_GETFL:
868         gemu_log("F_GETFL");
869         break;
870     case TARGET_F_SETFL:
871         gemu_log("F_SETFL,");
872         print_open_flags(arg2, 1);
873         break;
874     case TARGET_F_GETLK:
875         gemu_log("F_GETLK,");
876         print_pointer(arg2, 1);
877         break;
878     case TARGET_F_SETLK:
879         gemu_log("F_SETLK,");
880         print_pointer(arg2, 1);
881         break;
882     case TARGET_F_SETLKW:
883         gemu_log("F_SETLKW,");
884         print_pointer(arg2, 1);
885         break;
886     case TARGET_F_GETOWN:
887         gemu_log("F_GETOWN");
888         break;
889     case TARGET_F_SETOWN:
890         gemu_log("F_SETOWN,");
891         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
892         break;
893     case TARGET_F_GETSIG:
894         gemu_log("F_GETSIG");
895         break;
896     case TARGET_F_SETSIG:
897         gemu_log("F_SETSIG,");
898         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
899         break;
900 #if TARGET_ABI_BITS == 32
901     case TARGET_F_GETLK64:
902         gemu_log("F_GETLK64,");
903         print_pointer(arg2, 1);
904         break;
905     case TARGET_F_SETLK64:
906         gemu_log("F_SETLK64,");
907         print_pointer(arg2, 1);
908         break;
909     case TARGET_F_SETLKW64:
910         gemu_log("F_SETLKW64,");
911         print_pointer(arg2, 1);
912         break;
913 #endif
914     case TARGET_F_SETLEASE:
915         gemu_log("F_SETLEASE,");
916         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
917         break;
918     case TARGET_F_GETLEASE:
919         gemu_log("F_GETLEASE");
920         break;
921     case TARGET_F_DUPFD_CLOEXEC:
922         gemu_log("F_DUPFD_CLOEXEC,");
923         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
924         break;
925     case TARGET_F_NOTIFY:
926         gemu_log("F_NOTIFY,");
927         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
928         break;
929     default:
930         print_raw_param(TARGET_ABI_FMT_ld, arg1, 0);
931         print_pointer(arg2, 1);
932         break;
933     }
934     print_syscall_epilogue(name);
935 }
936 #define print_fcntl64   print_fcntl
937 #endif
938 
939 
940 #ifdef TARGET_NR_futimesat
941 static void
942 print_futimesat(const struct syscallname *name,
943     abi_long arg0, abi_long arg1, abi_long arg2,
944     abi_long arg3, abi_long arg4, abi_long arg5)
945 {
946     print_syscall_prologue(name);
947     print_at_dirfd(arg0, 0);
948     print_string(arg1, 0);
949     print_timeval(arg2, 0);
950     print_timeval(arg2 + sizeof (struct target_timeval), 1);
951     print_syscall_epilogue(name);
952 }
953 #endif
954 
955 #ifdef TARGET_NR_link
956 static void
957 print_link(const struct syscallname *name,
958     abi_long arg0, abi_long arg1, abi_long arg2,
959     abi_long arg3, abi_long arg4, abi_long arg5)
960 {
961     print_syscall_prologue(name);
962     print_string(arg0, 0);
963     print_string(arg1, 1);
964     print_syscall_epilogue(name);
965 }
966 #endif
967 
968 #ifdef TARGET_NR_linkat
969 static void
970 print_linkat(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_at_dirfd(arg0, 0);
976     print_string(arg1, 0);
977     print_at_dirfd(arg2, 0);
978     print_string(arg3, 0);
979     print_flags(at_file_flags, arg4, 1);
980     print_syscall_epilogue(name);
981 }
982 #endif
983 
984 #ifdef TARGET_NR__llseek
985 static void
986 print__llseek(const struct syscallname *name,
987     abi_long arg0, abi_long arg1, abi_long arg2,
988     abi_long arg3, abi_long arg4, abi_long arg5)
989 {
990     const char *whence = "UNKNOWN";
991     print_syscall_prologue(name);
992     print_raw_param("%d", arg0, 0);
993     print_raw_param("%ld", arg1, 0);
994     print_raw_param("%ld", arg2, 0);
995     print_pointer(arg3, 0);
996     switch(arg4) {
997     case SEEK_SET: whence = "SEEK_SET"; break;
998     case SEEK_CUR: whence = "SEEK_CUR"; break;
999     case SEEK_END: whence = "SEEK_END"; break;
1000     }
1001     gemu_log("%s",whence);
1002     print_syscall_epilogue(name);
1003 }
1004 #endif
1005 
1006 #if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) || \
1007     defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64)
1008 static void
1009 print_stat(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_string(arg0, 0);
1015     print_pointer(arg1, 1);
1016     print_syscall_epilogue(name);
1017 }
1018 #define print_lstat     print_stat
1019 #define print_stat64	print_stat
1020 #define print_lstat64   print_stat
1021 #endif
1022 
1023 #if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
1024 static void
1025 print_fstat(const struct syscallname *name,
1026     abi_long arg0, abi_long arg1, abi_long arg2,
1027     abi_long arg3, abi_long arg4, abi_long arg5)
1028 {
1029     print_syscall_prologue(name);
1030     print_raw_param("%d", arg0, 0);
1031     print_pointer(arg1, 1);
1032     print_syscall_epilogue(name);
1033 }
1034 #define print_fstat64     print_fstat
1035 #endif
1036 
1037 #ifdef TARGET_NR_mkdir
1038 static void
1039 print_mkdir(const struct syscallname *name,
1040     abi_long arg0, abi_long arg1, abi_long arg2,
1041     abi_long arg3, abi_long arg4, abi_long arg5)
1042 {
1043     print_syscall_prologue(name);
1044     print_string(arg0, 0);
1045     print_file_mode(arg1, 1);
1046     print_syscall_epilogue(name);
1047 }
1048 #endif
1049 
1050 #ifdef TARGET_NR_mkdirat
1051 static void
1052 print_mkdirat(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_at_dirfd(arg0, 0);
1058     print_string(arg1, 0);
1059     print_file_mode(arg2, 1);
1060     print_syscall_epilogue(name);
1061 }
1062 #endif
1063 
1064 #ifdef TARGET_NR_rmdir
1065 static void
1066 print_rmdir(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_syscall_epilogue(name);
1073 }
1074 #endif
1075 
1076 #ifdef TARGET_NR_rt_sigaction
1077 static void
1078 print_rt_sigaction(const struct syscallname *name,
1079     abi_long arg0, abi_long arg1, abi_long arg2,
1080     abi_long arg3, abi_long arg4, abi_long arg5)
1081 {
1082     print_syscall_prologue(name);
1083     print_signal(arg0, 0);
1084     print_pointer(arg1, 0);
1085     print_pointer(arg2, 1);
1086     print_syscall_epilogue(name);
1087 }
1088 #endif
1089 
1090 #ifdef TARGET_NR_rt_sigprocmask
1091 static void
1092 print_rt_sigprocmask(const struct syscallname *name,
1093     abi_long arg0, abi_long arg1, abi_long arg2,
1094     abi_long arg3, abi_long arg4, abi_long arg5)
1095 {
1096     const char *how = "UNKNOWN";
1097     print_syscall_prologue(name);
1098     switch(arg0) {
1099     case TARGET_SIG_BLOCK: how = "SIG_BLOCK"; break;
1100     case TARGET_SIG_UNBLOCK: how = "SIG_UNBLOCK"; break;
1101     case TARGET_SIG_SETMASK: how = "SIG_SETMASK"; break;
1102     }
1103     gemu_log("%s,",how);
1104     print_pointer(arg1, 0);
1105     print_pointer(arg2, 1);
1106     print_syscall_epilogue(name);
1107 }
1108 #endif
1109 
1110 #ifdef TARGET_NR_mknod
1111 static void
1112 print_mknod(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     int hasdev = (arg1 & (S_IFCHR|S_IFBLK));
1117 
1118     print_syscall_prologue(name);
1119     print_string(arg0, 0);
1120     print_file_mode(arg1, (hasdev == 0));
1121     if (hasdev) {
1122         print_raw_param("makedev(%d", major(arg2), 0);
1123         print_raw_param("%d)", minor(arg2), 1);
1124     }
1125     print_syscall_epilogue(name);
1126 }
1127 #endif
1128 
1129 #ifdef TARGET_NR_mknodat
1130 static void
1131 print_mknodat(const struct syscallname *name,
1132     abi_long arg0, abi_long arg1, abi_long arg2,
1133     abi_long arg3, abi_long arg4, abi_long arg5)
1134 {
1135     int hasdev = (arg2 & (S_IFCHR|S_IFBLK));
1136 
1137     print_syscall_prologue(name);
1138     print_at_dirfd(arg0, 0);
1139     print_string(arg1, 0);
1140     print_file_mode(arg2, (hasdev == 0));
1141     if (hasdev) {
1142         print_raw_param("makedev(%d", major(arg3), 0);
1143         print_raw_param("%d)", minor(arg3), 1);
1144     }
1145     print_syscall_epilogue(name);
1146 }
1147 #endif
1148 
1149 #ifdef TARGET_NR_mq_open
1150 static void
1151 print_mq_open(const struct syscallname *name,
1152     abi_long arg0, abi_long arg1, abi_long arg2,
1153     abi_long arg3, abi_long arg4, abi_long arg5)
1154 {
1155     int is_creat = (arg1 & TARGET_O_CREAT);
1156 
1157     print_syscall_prologue(name);
1158     print_string(arg0, 0);
1159     print_open_flags(arg1, (is_creat == 0));
1160     if (is_creat) {
1161         print_file_mode(arg2, 0);
1162         print_pointer(arg3, 1);
1163     }
1164     print_syscall_epilogue(name);
1165 }
1166 #endif
1167 
1168 #ifdef TARGET_NR_open
1169 static void
1170 print_open(const struct syscallname *name,
1171     abi_long arg0, abi_long arg1, abi_long arg2,
1172     abi_long arg3, abi_long arg4, abi_long arg5)
1173 {
1174     int is_creat = (arg1 & TARGET_O_CREAT);
1175 
1176     print_syscall_prologue(name);
1177     print_string(arg0, 0);
1178     print_open_flags(arg1, (is_creat == 0));
1179     if (is_creat)
1180         print_file_mode(arg2, 1);
1181     print_syscall_epilogue(name);
1182 }
1183 #endif
1184 
1185 #ifdef TARGET_NR_openat
1186 static void
1187 print_openat(const struct syscallname *name,
1188     abi_long arg0, abi_long arg1, abi_long arg2,
1189     abi_long arg3, abi_long arg4, abi_long arg5)
1190 {
1191     int is_creat = (arg2 & TARGET_O_CREAT);
1192 
1193     print_syscall_prologue(name);
1194     print_at_dirfd(arg0, 0);
1195     print_string(arg1, 0);
1196     print_open_flags(arg2, (is_creat == 0));
1197     if (is_creat)
1198         print_file_mode(arg3, 1);
1199     print_syscall_epilogue(name);
1200 }
1201 #endif
1202 
1203 #ifdef TARGET_NR_mq_unlink
1204 static void
1205 print_mq_unlink(const struct syscallname *name,
1206     abi_long arg0, abi_long arg1, abi_long arg2,
1207     abi_long arg3, abi_long arg4, abi_long arg5)
1208 {
1209     print_syscall_prologue(name);
1210     print_string(arg0, 1);
1211     print_syscall_epilogue(name);
1212 }
1213 #endif
1214 
1215 #if defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)
1216 static void
1217 print_fstatat64(const struct syscallname *name,
1218     abi_long arg0, abi_long arg1, abi_long arg2,
1219     abi_long arg3, abi_long arg4, abi_long arg5)
1220 {
1221     print_syscall_prologue(name);
1222     print_at_dirfd(arg0, 0);
1223     print_string(arg1, 0);
1224     print_pointer(arg2, 0);
1225     print_flags(at_file_flags, arg3, 1);
1226     print_syscall_epilogue(name);
1227 }
1228 #define print_newfstatat    print_fstatat64
1229 #endif
1230 
1231 #ifdef TARGET_NR_readlink
1232 static void
1233 print_readlink(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_string(arg0, 0);
1239     print_pointer(arg1, 0);
1240     print_raw_param("%u", arg2, 1);
1241     print_syscall_epilogue(name);
1242 }
1243 #endif
1244 
1245 #ifdef TARGET_NR_readlinkat
1246 static void
1247 print_readlinkat(const struct syscallname *name,
1248     abi_long arg0, abi_long arg1, abi_long arg2,
1249     abi_long arg3, abi_long arg4, abi_long arg5)
1250 {
1251     print_syscall_prologue(name);
1252     print_at_dirfd(arg0, 0);
1253     print_string(arg1, 0);
1254     print_pointer(arg2, 0);
1255     print_raw_param("%u", arg3, 1);
1256     print_syscall_epilogue(name);
1257 }
1258 #endif
1259 
1260 #ifdef TARGET_NR_rename
1261 static void
1262 print_rename(const struct syscallname *name,
1263     abi_long arg0, abi_long arg1, abi_long arg2,
1264     abi_long arg3, abi_long arg4, abi_long arg5)
1265 {
1266     print_syscall_prologue(name);
1267     print_string(arg0, 0);
1268     print_string(arg1, 1);
1269     print_syscall_epilogue(name);
1270 }
1271 #endif
1272 
1273 #ifdef TARGET_NR_renameat
1274 static void
1275 print_renameat(const struct syscallname *name,
1276     abi_long arg0, abi_long arg1, abi_long arg2,
1277     abi_long arg3, abi_long arg4, abi_long arg5)
1278 {
1279     print_syscall_prologue(name);
1280     print_at_dirfd(arg0, 0);
1281     print_string(arg1, 0);
1282     print_at_dirfd(arg2, 0);
1283     print_string(arg3, 1);
1284     print_syscall_epilogue(name);
1285 }
1286 #endif
1287 
1288 #ifdef TARGET_NR_statfs
1289 static void
1290 print_statfs(const struct syscallname *name,
1291     abi_long arg0, abi_long arg1, abi_long arg2,
1292     abi_long arg3, abi_long arg4, abi_long arg5)
1293 {
1294     print_syscall_prologue(name);
1295     print_string(arg0, 0);
1296     print_pointer(arg1, 1);
1297     print_syscall_epilogue(name);
1298 }
1299 #define print_statfs64  print_statfs
1300 #endif
1301 
1302 #ifdef TARGET_NR_symlink
1303 static void
1304 print_symlink(const struct syscallname *name,
1305     abi_long arg0, abi_long arg1, abi_long arg2,
1306     abi_long arg3, abi_long arg4, abi_long arg5)
1307 {
1308     print_syscall_prologue(name);
1309     print_string(arg0, 0);
1310     print_string(arg1, 1);
1311     print_syscall_epilogue(name);
1312 }
1313 #endif
1314 
1315 #ifdef TARGET_NR_symlinkat
1316 static void
1317 print_symlinkat(const struct syscallname *name,
1318     abi_long arg0, abi_long arg1, abi_long arg2,
1319     abi_long arg3, abi_long arg4, abi_long arg5)
1320 {
1321     print_syscall_prologue(name);
1322     print_string(arg0, 0);
1323     print_at_dirfd(arg1, 0);
1324     print_string(arg2, 1);
1325     print_syscall_epilogue(name);
1326 }
1327 #endif
1328 
1329 #ifdef TARGET_NR_mount
1330 static void
1331 print_mount(const struct syscallname *name,
1332     abi_long arg0, abi_long arg1, abi_long arg2,
1333     abi_long arg3, abi_long arg4, abi_long arg5)
1334 {
1335     print_syscall_prologue(name);
1336     print_string(arg0, 0);
1337     print_string(arg1, 0);
1338     print_string(arg2, 0);
1339     print_flags(mount_flags, arg3, 0);
1340     print_pointer(arg4, 1);
1341     print_syscall_epilogue(name);
1342 }
1343 #endif
1344 
1345 #ifdef TARGET_NR_umount
1346 static void
1347 print_umount(const struct syscallname *name,
1348     abi_long arg0, abi_long arg1, abi_long arg2,
1349     abi_long arg3, abi_long arg4, abi_long arg5)
1350 {
1351     print_syscall_prologue(name);
1352     print_string(arg0, 1);
1353     print_syscall_epilogue(name);
1354 }
1355 #endif
1356 
1357 #ifdef TARGET_NR_umount2
1358 static void
1359 print_umount2(const struct syscallname *name,
1360     abi_long arg0, abi_long arg1, abi_long arg2,
1361     abi_long arg3, abi_long arg4, abi_long arg5)
1362 {
1363     print_syscall_prologue(name);
1364     print_string(arg0, 0);
1365     print_flags(umount2_flags, arg1, 1);
1366     print_syscall_epilogue(name);
1367 }
1368 #endif
1369 
1370 #ifdef TARGET_NR_unlink
1371 static void
1372 print_unlink(const struct syscallname *name,
1373     abi_long arg0, abi_long arg1, abi_long arg2,
1374     abi_long arg3, abi_long arg4, abi_long arg5)
1375 {
1376     print_syscall_prologue(name);
1377     print_string(arg0, 1);
1378     print_syscall_epilogue(name);
1379 }
1380 #endif
1381 
1382 #ifdef TARGET_NR_unlinkat
1383 static void
1384 print_unlinkat(const struct syscallname *name,
1385     abi_long arg0, abi_long arg1, abi_long arg2,
1386     abi_long arg3, abi_long arg4, abi_long arg5)
1387 {
1388     print_syscall_prologue(name);
1389     print_at_dirfd(arg0, 0);
1390     print_string(arg1, 0);
1391     print_flags(unlinkat_flags, arg2, 1);
1392     print_syscall_epilogue(name);
1393 }
1394 #endif
1395 
1396 #ifdef TARGET_NR_utime
1397 static void
1398 print_utime(const struct syscallname *name,
1399     abi_long arg0, abi_long arg1, abi_long arg2,
1400     abi_long arg3, abi_long arg4, abi_long arg5)
1401 {
1402     print_syscall_prologue(name);
1403     print_string(arg0, 0);
1404     print_pointer(arg1, 1);
1405     print_syscall_epilogue(name);
1406 }
1407 #endif
1408 
1409 #ifdef TARGET_NR_utimes
1410 static void
1411 print_utimes(const struct syscallname *name,
1412     abi_long arg0, abi_long arg1, abi_long arg2,
1413     abi_long arg3, abi_long arg4, abi_long arg5)
1414 {
1415     print_syscall_prologue(name);
1416     print_string(arg0, 0);
1417     print_pointer(arg1, 1);
1418     print_syscall_epilogue(name);
1419 }
1420 #endif
1421 
1422 #ifdef TARGET_NR_utimensat
1423 static void
1424 print_utimensat(const struct syscallname *name,
1425     abi_long arg0, abi_long arg1, abi_long arg2,
1426     abi_long arg3, abi_long arg4, abi_long arg5)
1427 {
1428     print_syscall_prologue(name);
1429     print_at_dirfd(arg0, 0);
1430     print_string(arg1, 0);
1431     print_pointer(arg2, 0);
1432     print_flags(at_file_flags, arg3, 1);
1433     print_syscall_epilogue(name);
1434 }
1435 #endif
1436 
1437 #if defined(TARGET_NR_mmap) || defined(TARGET_NR_mmap2)
1438 static void
1439 print_mmap(const struct syscallname *name,
1440     abi_long arg0, abi_long arg1, abi_long arg2,
1441     abi_long arg3, abi_long arg4, abi_long arg5)
1442 {
1443     print_syscall_prologue(name);
1444     print_pointer(arg0, 0);
1445     print_raw_param("%d", arg1, 0);
1446     print_flags(mmap_prot_flags, arg2, 0);
1447     print_flags(mmap_flags, arg3, 0);
1448     print_raw_param("%d", arg4, 0);
1449     print_raw_param("%#x", arg5, 1);
1450     print_syscall_epilogue(name);
1451 }
1452 #define print_mmap2     print_mmap
1453 #endif
1454 
1455 #ifdef TARGET_NR_mprotect
1456 static void
1457 print_mprotect(const struct syscallname *name,
1458     abi_long arg0, abi_long arg1, abi_long arg2,
1459     abi_long arg3, abi_long arg4, abi_long arg5)
1460 {
1461     print_syscall_prologue(name);
1462     print_pointer(arg0, 0);
1463     print_raw_param("%d", arg1, 0);
1464     print_flags(mmap_prot_flags, arg2, 1);
1465     print_syscall_epilogue(name);
1466 }
1467 #endif
1468 
1469 #ifdef TARGET_NR_munmap
1470 static void
1471 print_munmap(const struct syscallname *name,
1472     abi_long arg0, abi_long arg1, abi_long arg2,
1473     abi_long arg3, abi_long arg4, abi_long arg5)
1474 {
1475     print_syscall_prologue(name);
1476     print_pointer(arg0, 0);
1477     print_raw_param("%d", arg1, 1);
1478     print_syscall_epilogue(name);
1479 }
1480 #endif
1481 
1482 #ifdef TARGET_NR_futex
1483 static void print_futex_op(abi_long tflag, int last)
1484 {
1485 #define print_op(val) \
1486 if( cmd == val ) { \
1487     gemu_log(#val); \
1488     return; \
1489 }
1490 
1491     int cmd = (int)tflag;
1492 #ifdef FUTEX_PRIVATE_FLAG
1493     if (cmd & FUTEX_PRIVATE_FLAG) {
1494         gemu_log("FUTEX_PRIVATE_FLAG|");
1495         cmd &= ~FUTEX_PRIVATE_FLAG;
1496     }
1497 #endif
1498 #ifdef FUTEX_CLOCK_REALTIME
1499     if (cmd & FUTEX_CLOCK_REALTIME) {
1500         gemu_log("FUTEX_CLOCK_REALTIME|");
1501         cmd &= ~FUTEX_CLOCK_REALTIME;
1502     }
1503 #endif
1504     print_op(FUTEX_WAIT)
1505     print_op(FUTEX_WAKE)
1506     print_op(FUTEX_FD)
1507     print_op(FUTEX_REQUEUE)
1508     print_op(FUTEX_CMP_REQUEUE)
1509     print_op(FUTEX_WAKE_OP)
1510     print_op(FUTEX_LOCK_PI)
1511     print_op(FUTEX_UNLOCK_PI)
1512     print_op(FUTEX_TRYLOCK_PI)
1513 #ifdef FUTEX_WAIT_BITSET
1514     print_op(FUTEX_WAIT_BITSET)
1515 #endif
1516 #ifdef FUTEX_WAKE_BITSET
1517     print_op(FUTEX_WAKE_BITSET)
1518 #endif
1519     /* unknown values */
1520     gemu_log("%d",cmd);
1521 }
1522 
1523 static void
1524 print_futex(const struct syscallname *name,
1525     abi_long arg0, abi_long arg1, abi_long arg2,
1526     abi_long arg3, abi_long arg4, abi_long arg5)
1527 {
1528     print_syscall_prologue(name);
1529     print_pointer(arg0, 0);
1530     print_futex_op(arg1, 0);
1531     print_raw_param(",%d", arg2, 0);
1532     print_pointer(arg3, 0); /* struct timespec */
1533     print_pointer(arg4, 0);
1534     print_raw_param("%d", arg4, 1);
1535     print_syscall_epilogue(name);
1536 }
1537 #endif
1538 
1539 #ifdef TARGET_NR_kill
1540 static void
1541 print_kill(const struct syscallname *name,
1542     abi_long arg0, abi_long arg1, abi_long arg2,
1543     abi_long arg3, abi_long arg4, abi_long arg5)
1544 {
1545     print_syscall_prologue(name);
1546     print_raw_param("%d", arg0, 0);
1547     print_signal(arg1, 1);
1548     print_syscall_epilogue(name);
1549 }
1550 #endif
1551 
1552 /*
1553  * An array of all of the syscalls we know about
1554  */
1555 
1556 static const struct syscallname scnames[] = {
1557 #include "strace.list"
1558 };
1559 
1560 static int nsyscalls = ARRAY_SIZE(scnames);
1561 
1562 /*
1563  * The public interface to this module.
1564  */
1565 void
1566 print_syscall(int num,
1567               abi_long arg1, abi_long arg2, abi_long arg3,
1568               abi_long arg4, abi_long arg5, abi_long arg6)
1569 {
1570     int i;
1571     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 ")";
1572 
1573     gemu_log("%d ", getpid() );
1574 
1575     for(i=0;i<nsyscalls;i++)
1576         if( scnames[i].nr == num ) {
1577             if( scnames[i].call != NULL ) {
1578                 scnames[i].call(&scnames[i],arg1,arg2,arg3,arg4,arg5,arg6);
1579             } else {
1580                 /* XXX: this format system is broken because it uses
1581                    host types and host pointers for strings */
1582                 if( scnames[i].format != NULL )
1583                     format = scnames[i].format;
1584                 gemu_log(format,scnames[i].name, arg1,arg2,arg3,arg4,arg5,arg6);
1585             }
1586             return;
1587         }
1588     gemu_log("Unknown syscall %d\n", num);
1589 }
1590 
1591 
1592 void
1593 print_syscall_ret(int num, abi_long ret)
1594 {
1595     int i;
1596     const char *errstr = NULL;
1597 
1598     for(i=0;i<nsyscalls;i++)
1599         if( scnames[i].nr == num ) {
1600             if( scnames[i].result != NULL ) {
1601                 scnames[i].result(&scnames[i],ret);
1602             } else {
1603                 if (ret < 0) {
1604                     errstr = target_strerror(-ret);
1605                 }
1606                 if (errstr) {
1607                     gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n",
1608                              -ret, errstr);
1609                 } else {
1610                     gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
1611                 }
1612             }
1613             break;
1614         }
1615 }
1616