xref: /qemu/linux-user/strace.c (revision 7a4e543d)
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 <sys/mman.h>
9 #include <sched.h>
10 #include "qemu.h"
11 
12 int do_strace=0;
13 
14 struct syscallname {
15     int nr;
16     const char *name;
17     const char *format;
18     void (*call)(const struct syscallname *,
19                  abi_long, abi_long, abi_long,
20                  abi_long, abi_long, abi_long);
21     void (*result)(const struct syscallname *, abi_long);
22 };
23 
24 #ifdef __GNUC__
25 /*
26  * It is possible that target doesn't have syscall that uses
27  * following flags but we don't want the compiler to warn
28  * us about them being unused.  Same applies to utility print
29  * functions.  It is ok to keep them while not used.
30  */
31 #define UNUSED __attribute__ ((unused))
32 #else
33 #define UNUSED
34 #endif
35 
36 /*
37  * Structure used to translate flag values into strings.  This is
38  * similar that is in the actual strace tool.
39  */
40 struct flags {
41     abi_long    f_value;  /* flag */
42     const char  *f_string; /* stringified flag */
43 };
44 
45 /* common flags for all architectures */
46 #define FLAG_GENERIC(name) { name, #name }
47 /* target specific flags (syscall_defs.h has TARGET_<flag>) */
48 #define FLAG_TARGET(name)  { TARGET_ ## name, #name }
49 /* end of flags array */
50 #define FLAG_END           { 0, NULL }
51 
52 UNUSED static const char *get_comma(int);
53 UNUSED static void print_pointer(abi_long, int);
54 UNUSED static void print_flags(const struct flags *, abi_long, int);
55 UNUSED static void print_at_dirfd(abi_long, int);
56 UNUSED static void print_file_mode(abi_long, int);
57 UNUSED static void print_open_flags(abi_long, int);
58 UNUSED static void print_syscall_prologue(const struct syscallname *);
59 UNUSED static void print_syscall_epilogue(const struct syscallname *);
60 UNUSED static void print_string(abi_long, int);
61 UNUSED static void print_raw_param(const char *, abi_long, int);
62 UNUSED static void print_timeval(abi_ulong, int);
63 UNUSED static void print_number(abi_long, int);
64 UNUSED static void print_signal(abi_ulong, int);
65 
66 /*
67  * Utility functions
68  */
69 static void
70 print_ipc_cmd(int cmd)
71 {
72 #define output_cmd(val) \
73 if( cmd == val ) { \
74     gemu_log(#val); \
75     return; \
76 }
77 
78     cmd &= 0xff;
79 
80     /* General IPC commands */
81     output_cmd( IPC_RMID );
82     output_cmd( IPC_SET );
83     output_cmd( IPC_STAT );
84     output_cmd( IPC_INFO );
85     /* msgctl() commands */
86     #ifdef __USER_MISC
87     output_cmd( MSG_STAT );
88     output_cmd( MSG_INFO );
89     #endif
90     /* shmctl() commands */
91     output_cmd( SHM_LOCK );
92     output_cmd( SHM_UNLOCK );
93     output_cmd( SHM_STAT );
94     output_cmd( SHM_INFO );
95     /* semctl() commands */
96     output_cmd( GETPID );
97     output_cmd( GETVAL );
98     output_cmd( GETALL );
99     output_cmd( GETNCNT );
100     output_cmd( GETZCNT );
101     output_cmd( SETVAL );
102     output_cmd( SETALL );
103     output_cmd( SEM_STAT );
104     output_cmd( SEM_INFO );
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     output_cmd( IPC_RMID );
114 
115     /* Some value we don't recognize */
116     gemu_log("%d",cmd);
117 }
118 
119 static void
120 print_signal(abi_ulong arg, int last)
121 {
122     const char *signal_name = NULL;
123     switch(arg) {
124     case TARGET_SIGHUP: signal_name = "SIGHUP"; break;
125     case TARGET_SIGINT: signal_name = "SIGINT"; break;
126     case TARGET_SIGQUIT: signal_name = "SIGQUIT"; break;
127     case TARGET_SIGILL: signal_name = "SIGILL"; break;
128     case TARGET_SIGABRT: signal_name = "SIGABRT"; break;
129     case TARGET_SIGFPE: signal_name = "SIGFPE"; break;
130     case TARGET_SIGKILL: signal_name = "SIGKILL"; break;
131     case TARGET_SIGSEGV: signal_name = "SIGSEGV"; break;
132     case TARGET_SIGPIPE: signal_name = "SIGPIPE"; break;
133     case TARGET_SIGALRM: signal_name = "SIGALRM"; break;
134     case TARGET_SIGTERM: signal_name = "SIGTERM"; break;
135     case TARGET_SIGUSR1: signal_name = "SIGUSR1"; break;
136     case TARGET_SIGUSR2: signal_name = "SIGUSR2"; break;
137     case TARGET_SIGCHLD: signal_name = "SIGCHLD"; break;
138     case TARGET_SIGCONT: signal_name = "SIGCONT"; break;
139     case TARGET_SIGSTOP: signal_name = "SIGSTOP"; break;
140     case TARGET_SIGTTIN: signal_name = "SIGTTIN"; break;
141     case TARGET_SIGTTOU: signal_name = "SIGTTOU"; break;
142     }
143     if (signal_name == NULL) {
144         print_raw_param("%ld", arg, last);
145         return;
146     }
147     gemu_log("%s%s", signal_name, get_comma(last));
148 }
149 
150 #ifdef TARGET_NR__newselect
151 static void
152 print_fdset(int n, abi_ulong target_fds_addr)
153 {
154     int i;
155 
156     gemu_log("[");
157     if( target_fds_addr ) {
158         abi_long *target_fds;
159 
160         target_fds = lock_user(VERIFY_READ,
161                                target_fds_addr,
162                                sizeof(*target_fds)*(n / TARGET_ABI_BITS + 1),
163                                1);
164 
165         if (!target_fds)
166             return;
167 
168         for (i=n; i>=0; i--) {
169             if ((tswapal(target_fds[i / TARGET_ABI_BITS]) >> (i & (TARGET_ABI_BITS - 1))) & 1)
170                 gemu_log("%d,", i );
171             }
172         unlock_user(target_fds, target_fds_addr, 0);
173     }
174     gemu_log("]");
175 }
176 #endif
177 
178 /*
179  * Sysycall specific output functions
180  */
181 
182 /* select */
183 #ifdef TARGET_NR__newselect
184 static long newselect_arg1 = 0;
185 static long newselect_arg2 = 0;
186 static long newselect_arg3 = 0;
187 static long newselect_arg4 = 0;
188 static long newselect_arg5 = 0;
189 
190 static void
191 print_newselect(const struct syscallname *name,
192                 abi_long arg1, abi_long arg2, abi_long arg3,
193                 abi_long arg4, abi_long arg5, abi_long arg6)
194 {
195     gemu_log("%s(" TARGET_ABI_FMT_ld ",", name->name, arg1);
196     print_fdset(arg1, arg2);
197     gemu_log(",");
198     print_fdset(arg1, arg3);
199     gemu_log(",");
200     print_fdset(arg1, arg4);
201     gemu_log(",");
202     print_timeval(arg5, 1);
203     gemu_log(")");
204 
205     /* save for use in the return output function below */
206     newselect_arg1=arg1;
207     newselect_arg2=arg2;
208     newselect_arg3=arg3;
209     newselect_arg4=arg4;
210     newselect_arg5=arg5;
211 }
212 #endif
213 
214 #ifdef TARGET_NR_semctl
215 static void
216 print_semctl(const struct syscallname *name,
217              abi_long arg1, abi_long arg2, abi_long arg3,
218              abi_long arg4, abi_long arg5, abi_long arg6)
219 {
220     gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", name->name, arg1, arg2);
221     print_ipc_cmd(arg3);
222     gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
223 }
224 #endif
225 
226 static void
227 print_execve(const struct syscallname *name,
228              abi_long arg1, abi_long arg2, abi_long arg3,
229              abi_long arg4, abi_long arg5, abi_long arg6)
230 {
231     abi_ulong arg_ptr_addr;
232     char *s;
233 
234     if (!(s = lock_user_string(arg1)))
235         return;
236     gemu_log("%s(\"%s\",{", name->name, s);
237     unlock_user(s, arg1, 0);
238 
239     for (arg_ptr_addr = arg2; ; arg_ptr_addr += sizeof(abi_ulong)) {
240         abi_ulong *arg_ptr, arg_addr;
241 
242 	arg_ptr = lock_user(VERIFY_READ, arg_ptr_addr, sizeof(abi_ulong), 1);
243         if (!arg_ptr)
244             return;
245     arg_addr = tswapal(*arg_ptr);
246 	unlock_user(arg_ptr, arg_ptr_addr, 0);
247         if (!arg_addr)
248             break;
249         if ((s = lock_user_string(arg_addr))) {
250             gemu_log("\"%s\",", s);
251             unlock_user(s, arg_addr, 0);
252         }
253     }
254 
255     gemu_log("NULL})");
256 }
257 
258 #ifdef TARGET_NR_ipc
259 static void
260 print_ipc(const struct syscallname *name,
261           abi_long arg1, abi_long arg2, abi_long arg3,
262           abi_long arg4, abi_long arg5, abi_long arg6)
263 {
264     switch(arg1) {
265     case IPCOP_semctl:
266         gemu_log("semctl(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", arg1, arg2);
267         print_ipc_cmd(arg3);
268         gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
269         break;
270     default:
271         gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ")",
272                  name->name, arg1, arg2, arg3, arg4);
273     }
274 }
275 #endif
276 
277 /*
278  * Variants for the return value output function
279  */
280 
281 static void
282 print_syscall_ret_addr(const struct syscallname *name, abi_long ret)
283 {
284     char *errstr = NULL;
285 
286     if (ret < 0) {
287         errstr = target_strerror(-ret);
288     }
289     if (errstr) {
290         gemu_log(" = -1 errno=%d (%s)\n", (int)-ret, errstr);
291     } else {
292         gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
293     }
294 }
295 
296 #if 0 /* currently unused */
297 static void
298 print_syscall_ret_raw(struct syscallname *name, abi_long ret)
299 {
300         gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
301 }
302 #endif
303 
304 #ifdef TARGET_NR__newselect
305 static void
306 print_syscall_ret_newselect(const struct syscallname *name, abi_long ret)
307 {
308     gemu_log(" = 0x" TARGET_ABI_FMT_lx " (", ret);
309     print_fdset(newselect_arg1,newselect_arg2);
310     gemu_log(",");
311     print_fdset(newselect_arg1,newselect_arg3);
312     gemu_log(",");
313     print_fdset(newselect_arg1,newselect_arg4);
314     gemu_log(",");
315     print_timeval(newselect_arg5, 1);
316     gemu_log(")\n");
317 }
318 #endif
319 
320 UNUSED static struct flags access_flags[] = {
321     FLAG_GENERIC(F_OK),
322     FLAG_GENERIC(R_OK),
323     FLAG_GENERIC(W_OK),
324     FLAG_GENERIC(X_OK),
325     FLAG_END,
326 };
327 
328 UNUSED static struct flags at_file_flags[] = {
329 #ifdef AT_EACCESS
330     FLAG_GENERIC(AT_EACCESS),
331 #endif
332 #ifdef AT_SYMLINK_NOFOLLOW
333     FLAG_GENERIC(AT_SYMLINK_NOFOLLOW),
334 #endif
335     FLAG_END,
336 };
337 
338 UNUSED static struct flags unlinkat_flags[] = {
339 #ifdef AT_REMOVEDIR
340     FLAG_GENERIC(AT_REMOVEDIR),
341 #endif
342     FLAG_END,
343 };
344 
345 UNUSED static struct flags mode_flags[] = {
346     FLAG_GENERIC(S_IFSOCK),
347     FLAG_GENERIC(S_IFLNK),
348     FLAG_GENERIC(S_IFREG),
349     FLAG_GENERIC(S_IFBLK),
350     FLAG_GENERIC(S_IFDIR),
351     FLAG_GENERIC(S_IFCHR),
352     FLAG_GENERIC(S_IFIFO),
353     FLAG_END,
354 };
355 
356 UNUSED static struct flags open_access_flags[] = {
357     FLAG_TARGET(O_RDONLY),
358     FLAG_TARGET(O_WRONLY),
359     FLAG_TARGET(O_RDWR),
360     FLAG_END,
361 };
362 
363 UNUSED static struct flags open_flags[] = {
364     FLAG_TARGET(O_APPEND),
365     FLAG_TARGET(O_CREAT),
366     FLAG_TARGET(O_DIRECTORY),
367     FLAG_TARGET(O_EXCL),
368     FLAG_TARGET(O_LARGEFILE),
369     FLAG_TARGET(O_NOCTTY),
370     FLAG_TARGET(O_NOFOLLOW),
371     FLAG_TARGET(O_NONBLOCK),      /* also O_NDELAY */
372     FLAG_TARGET(O_DSYNC),
373     FLAG_TARGET(__O_SYNC),
374     FLAG_TARGET(O_TRUNC),
375 #ifdef O_DIRECT
376     FLAG_TARGET(O_DIRECT),
377 #endif
378 #ifdef O_NOATIME
379     FLAG_TARGET(O_NOATIME),
380 #endif
381 #ifdef O_CLOEXEC
382     FLAG_TARGET(O_CLOEXEC),
383 #endif
384 #ifdef O_PATH
385     FLAG_TARGET(O_PATH),
386 #endif
387     FLAG_END,
388 };
389 
390 UNUSED static struct flags mount_flags[] = {
391 #ifdef MS_BIND
392     FLAG_GENERIC(MS_BIND),
393 #endif
394 #ifdef MS_DIRSYNC
395     FLAG_GENERIC(MS_DIRSYNC),
396 #endif
397     FLAG_GENERIC(MS_MANDLOCK),
398 #ifdef MS_MOVE
399     FLAG_GENERIC(MS_MOVE),
400 #endif
401     FLAG_GENERIC(MS_NOATIME),
402     FLAG_GENERIC(MS_NODEV),
403     FLAG_GENERIC(MS_NODIRATIME),
404     FLAG_GENERIC(MS_NOEXEC),
405     FLAG_GENERIC(MS_NOSUID),
406     FLAG_GENERIC(MS_RDONLY),
407 #ifdef MS_RELATIME
408     FLAG_GENERIC(MS_RELATIME),
409 #endif
410     FLAG_GENERIC(MS_REMOUNT),
411     FLAG_GENERIC(MS_SYNCHRONOUS),
412     FLAG_END,
413 };
414 
415 UNUSED static struct flags umount2_flags[] = {
416 #ifdef MNT_FORCE
417     FLAG_GENERIC(MNT_FORCE),
418 #endif
419 #ifdef MNT_DETACH
420     FLAG_GENERIC(MNT_DETACH),
421 #endif
422 #ifdef MNT_EXPIRE
423     FLAG_GENERIC(MNT_EXPIRE),
424 #endif
425     FLAG_END,
426 };
427 
428 UNUSED static struct flags mmap_prot_flags[] = {
429     FLAG_GENERIC(PROT_NONE),
430     FLAG_GENERIC(PROT_EXEC),
431     FLAG_GENERIC(PROT_READ),
432     FLAG_GENERIC(PROT_WRITE),
433     FLAG_TARGET(PROT_SEM),
434     FLAG_GENERIC(PROT_GROWSDOWN),
435     FLAG_GENERIC(PROT_GROWSUP),
436     FLAG_END,
437 };
438 
439 UNUSED static struct flags mmap_flags[] = {
440     FLAG_TARGET(MAP_SHARED),
441     FLAG_TARGET(MAP_PRIVATE),
442     FLAG_TARGET(MAP_ANONYMOUS),
443     FLAG_TARGET(MAP_DENYWRITE),
444     FLAG_TARGET(MAP_FIXED),
445     FLAG_TARGET(MAP_GROWSDOWN),
446     FLAG_TARGET(MAP_EXECUTABLE),
447 #ifdef MAP_LOCKED
448     FLAG_TARGET(MAP_LOCKED),
449 #endif
450 #ifdef MAP_NONBLOCK
451     FLAG_TARGET(MAP_NONBLOCK),
452 #endif
453     FLAG_TARGET(MAP_NORESERVE),
454 #ifdef MAP_POPULATE
455     FLAG_TARGET(MAP_POPULATE),
456 #endif
457 #ifdef TARGET_MAP_UNINITIALIZED
458     FLAG_TARGET(MAP_UNINITIALIZED),
459 #endif
460     FLAG_END,
461 };
462 
463 UNUSED static struct flags clone_flags[] = {
464     FLAG_GENERIC(CLONE_VM),
465     FLAG_GENERIC(CLONE_FS),
466     FLAG_GENERIC(CLONE_FILES),
467     FLAG_GENERIC(CLONE_SIGHAND),
468     FLAG_GENERIC(CLONE_PTRACE),
469     FLAG_GENERIC(CLONE_VFORK),
470     FLAG_GENERIC(CLONE_PARENT),
471     FLAG_GENERIC(CLONE_THREAD),
472     FLAG_GENERIC(CLONE_NEWNS),
473     FLAG_GENERIC(CLONE_SYSVSEM),
474     FLAG_GENERIC(CLONE_SETTLS),
475     FLAG_GENERIC(CLONE_PARENT_SETTID),
476     FLAG_GENERIC(CLONE_CHILD_CLEARTID),
477     FLAG_GENERIC(CLONE_DETACHED),
478     FLAG_GENERIC(CLONE_UNTRACED),
479     FLAG_GENERIC(CLONE_CHILD_SETTID),
480 #if defined(CLONE_NEWUTS)
481     FLAG_GENERIC(CLONE_NEWUTS),
482 #endif
483 #if defined(CLONE_NEWIPC)
484     FLAG_GENERIC(CLONE_NEWIPC),
485 #endif
486 #if defined(CLONE_NEWUSER)
487     FLAG_GENERIC(CLONE_NEWUSER),
488 #endif
489 #if defined(CLONE_NEWPID)
490     FLAG_GENERIC(CLONE_NEWPID),
491 #endif
492 #if defined(CLONE_NEWNET)
493     FLAG_GENERIC(CLONE_NEWNET),
494 #endif
495 #if defined(CLONE_IO)
496     FLAG_GENERIC(CLONE_IO),
497 #endif
498     FLAG_END,
499 };
500 
501 /*
502  * print_xxx utility functions.  These are used to print syscall
503  * parameters in certain format.  All of these have parameter
504  * named 'last'.  This parameter is used to add comma to output
505  * when last == 0.
506  */
507 
508 static const char *
509 get_comma(int last)
510 {
511     return ((last) ? "" : ",");
512 }
513 
514 static void
515 print_flags(const struct flags *f, abi_long flags, int last)
516 {
517     const char *sep = "";
518     int n;
519 
520     if ((flags == 0) && (f->f_value == 0)) {
521         gemu_log("%s%s", f->f_string, get_comma(last));
522         return;
523     }
524     for (n = 0; f->f_string != NULL; f++) {
525         if ((f->f_value != 0) && ((flags & f->f_value) == f->f_value)) {
526             gemu_log("%s%s", sep, f->f_string);
527             flags &= ~f->f_value;
528             sep = "|";
529             n++;
530         }
531     }
532 
533     if (n > 0) {
534         /* print rest of the flags as numeric */
535         if (flags != 0) {
536             gemu_log("%s%#x%s", sep, (unsigned int)flags, get_comma(last));
537         } else {
538             gemu_log("%s", get_comma(last));
539         }
540     } else {
541         /* no string version of flags found, print them in hex then */
542         gemu_log("%#x%s", (unsigned int)flags, get_comma(last));
543     }
544 }
545 
546 static void
547 print_at_dirfd(abi_long dirfd, int last)
548 {
549 #ifdef AT_FDCWD
550     if (dirfd == AT_FDCWD) {
551         gemu_log("AT_FDCWD%s", get_comma(last));
552         return;
553     }
554 #endif
555     gemu_log("%d%s", (int)dirfd, get_comma(last));
556 }
557 
558 static void
559 print_file_mode(abi_long mode, int last)
560 {
561     const char *sep = "";
562     const struct flags *m;
563 
564     for (m = &mode_flags[0]; m->f_string != NULL; m++) {
565         if ((m->f_value & mode) == m->f_value) {
566             gemu_log("%s%s", m->f_string, sep);
567             sep = "|";
568             mode &= ~m->f_value;
569             break;
570         }
571     }
572 
573     mode &= ~S_IFMT;
574     /* print rest of the mode as octal */
575     if (mode != 0)
576         gemu_log("%s%#o", sep, (unsigned int)mode);
577 
578     gemu_log("%s", get_comma(last));
579 }
580 
581 static void
582 print_open_flags(abi_long flags, int last)
583 {
584     print_flags(open_access_flags, flags & TARGET_O_ACCMODE, 1);
585     flags &= ~TARGET_O_ACCMODE;
586     if (flags == 0) {
587         gemu_log("%s", get_comma(last));
588         return;
589     }
590     gemu_log("|");
591     print_flags(open_flags, flags, last);
592 }
593 
594 static void
595 print_syscall_prologue(const struct syscallname *sc)
596 {
597     gemu_log("%s(", sc->name);
598 }
599 
600 /*ARGSUSED*/
601 static void
602 print_syscall_epilogue(const struct syscallname *sc)
603 {
604     (void)sc;
605     gemu_log(")");
606 }
607 
608 static void
609 print_string(abi_long addr, int last)
610 {
611     char *s;
612 
613     if ((s = lock_user_string(addr)) != NULL) {
614         gemu_log("\"%s\"%s", s, get_comma(last));
615         unlock_user(s, addr, 0);
616     } else {
617         /* can't get string out of it, so print it as pointer */
618         print_pointer(addr, last);
619     }
620 }
621 
622 /*
623  * Prints out raw parameter using given format.  Caller needs
624  * to do byte swapping if needed.
625  */
626 static void
627 print_raw_param(const char *fmt, abi_long param, int last)
628 {
629     char format[64];
630 
631     (void) snprintf(format, sizeof (format), "%s%s", fmt, get_comma(last));
632     gemu_log(format, param);
633 }
634 
635 static void
636 print_pointer(abi_long p, int last)
637 {
638     if (p == 0)
639         gemu_log("NULL%s", get_comma(last));
640     else
641         gemu_log("0x" TARGET_ABI_FMT_lx "%s", p, get_comma(last));
642 }
643 
644 /*
645  * Reads 32-bit (int) number from guest address space from
646  * address 'addr' and prints it.
647  */
648 static void
649 print_number(abi_long addr, int last)
650 {
651     if (addr == 0) {
652         gemu_log("NULL%s", get_comma(last));
653     } else {
654         int num;
655 
656         get_user_s32(num, addr);
657         gemu_log("[%d]%s", num, get_comma(last));
658     }
659 }
660 
661 static void
662 print_timeval(abi_ulong tv_addr, int last)
663 {
664     if( tv_addr ) {
665         struct target_timeval *tv;
666 
667         tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1);
668         if (!tv)
669             return;
670         gemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s",
671             tswapal(tv->tv_sec), tswapal(tv->tv_usec), get_comma(last));
672         unlock_user(tv, tv_addr, 0);
673     } else
674         gemu_log("NULL%s", get_comma(last));
675 }
676 
677 #undef UNUSED
678 
679 #ifdef TARGET_NR_accept
680 static void
681 print_accept(const struct syscallname *name,
682     abi_long arg0, abi_long arg1, abi_long arg2,
683     abi_long arg3, abi_long arg4, abi_long arg5)
684 {
685     print_syscall_prologue(name);
686     print_raw_param("%d", arg0, 0);
687     print_pointer(arg1, 0);
688     print_number(arg2, 1);
689     print_syscall_epilogue(name);
690 }
691 #endif
692 
693 #ifdef TARGET_NR_access
694 static void
695 print_access(const struct syscallname *name,
696     abi_long arg0, abi_long arg1, abi_long arg2,
697     abi_long arg3, abi_long arg4, abi_long arg5)
698 {
699     print_syscall_prologue(name);
700     print_string(arg0, 0);
701     print_flags(access_flags, arg1, 1);
702     print_syscall_epilogue(name);
703 }
704 #endif
705 
706 #ifdef TARGET_NR_brk
707 static void
708 print_brk(const struct syscallname *name,
709     abi_long arg0, abi_long arg1, abi_long arg2,
710     abi_long arg3, abi_long arg4, abi_long arg5)
711 {
712     print_syscall_prologue(name);
713     print_pointer(arg0, 1);
714     print_syscall_epilogue(name);
715 }
716 #endif
717 
718 #ifdef TARGET_NR_chdir
719 static void
720 print_chdir(const struct syscallname *name,
721     abi_long arg0, abi_long arg1, abi_long arg2,
722     abi_long arg3, abi_long arg4, abi_long arg5)
723 {
724     print_syscall_prologue(name);
725     print_string(arg0, 1);
726     print_syscall_epilogue(name);
727 }
728 #endif
729 
730 #ifdef TARGET_NR_chmod
731 static void
732 print_chmod(const struct syscallname *name,
733     abi_long arg0, abi_long arg1, abi_long arg2,
734     abi_long arg3, abi_long arg4, abi_long arg5)
735 {
736     print_syscall_prologue(name);
737     print_string(arg0, 0);
738     print_file_mode(arg1, 1);
739     print_syscall_epilogue(name);
740 }
741 #endif
742 
743 #ifdef TARGET_NR_clone
744 static void
745 print_clone(const struct syscallname *name,
746     abi_long arg0, abi_long arg1, abi_long arg2,
747     abi_long arg3, abi_long arg4, abi_long arg5)
748 {
749     print_syscall_prologue(name);
750 #if defined(TARGET_M68K)
751     print_flags(clone_flags, arg0, 0);
752     print_raw_param("newsp=0x" TARGET_ABI_FMT_lx, arg1, 1);
753 #elif defined(TARGET_SH4) || defined(TARGET_ALPHA)
754     print_flags(clone_flags, arg0, 0);
755     print_raw_param("child_stack=0x" TARGET_ABI_FMT_lx, arg1, 0);
756     print_raw_param("parent_tidptr=0x" TARGET_ABI_FMT_lx, arg2, 0);
757     print_raw_param("child_tidptr=0x" TARGET_ABI_FMT_lx, arg3, 0);
758     print_raw_param("tls=0x" TARGET_ABI_FMT_lx, arg4, 1);
759 #elif defined(TARGET_CRIS)
760     print_raw_param("child_stack=0x" TARGET_ABI_FMT_lx, arg0, 0);
761     print_flags(clone_flags, arg1, 0);
762     print_raw_param("parent_tidptr=0x" TARGET_ABI_FMT_lx, arg2, 0);
763     print_raw_param("tls=0x" TARGET_ABI_FMT_lx, arg3, 0);
764     print_raw_param("child_tidptr=0x" TARGET_ABI_FMT_lx, arg4, 1);
765 #else
766     print_flags(clone_flags, arg0, 0);
767     print_raw_param("child_stack=0x" TARGET_ABI_FMT_lx, arg1, 0);
768     print_raw_param("parent_tidptr=0x" TARGET_ABI_FMT_lx, arg2, 0);
769     print_raw_param("tls=0x" TARGET_ABI_FMT_lx, arg3, 0);
770     print_raw_param("child_tidptr=0x" TARGET_ABI_FMT_lx, arg4, 1);
771 #endif
772     print_syscall_epilogue(name);
773 }
774 #endif
775 
776 #ifdef TARGET_NR_creat
777 static void
778 print_creat(const struct syscallname *name,
779     abi_long arg0, abi_long arg1, abi_long arg2,
780     abi_long arg3, abi_long arg4, abi_long arg5)
781 {
782     print_syscall_prologue(name);
783     print_string(arg0, 0);
784     print_file_mode(arg1, 1);
785     print_syscall_epilogue(name);
786 }
787 #endif
788 
789 #ifdef TARGET_NR_execv
790 static void
791 print_execv(const struct syscallname *name,
792     abi_long arg0, abi_long arg1, abi_long arg2,
793     abi_long arg3, abi_long arg4, abi_long arg5)
794 {
795     print_syscall_prologue(name);
796     print_string(arg0, 0);
797     print_raw_param("0x" TARGET_ABI_FMT_lx, arg1, 1);
798     print_syscall_epilogue(name);
799 }
800 #endif
801 
802 #ifdef TARGET_NR_faccessat
803 static void
804 print_faccessat(const struct syscallname *name,
805     abi_long arg0, abi_long arg1, abi_long arg2,
806     abi_long arg3, abi_long arg4, abi_long arg5)
807 {
808     print_syscall_prologue(name);
809     print_at_dirfd(arg0, 0);
810     print_string(arg1, 0);
811     print_flags(access_flags, arg2, 0);
812     print_flags(at_file_flags, arg3, 1);
813     print_syscall_epilogue(name);
814 }
815 #endif
816 
817 #ifdef TARGET_NR_fchmodat
818 static void
819 print_fchmodat(const struct syscallname *name,
820     abi_long arg0, abi_long arg1, abi_long arg2,
821     abi_long arg3, abi_long arg4, abi_long arg5)
822 {
823     print_syscall_prologue(name);
824     print_at_dirfd(arg0, 0);
825     print_string(arg1, 0);
826     print_file_mode(arg2, 0);
827     print_flags(at_file_flags, arg3, 1);
828     print_syscall_epilogue(name);
829 }
830 #endif
831 
832 #ifdef TARGET_NR_fchownat
833 static void
834 print_fchownat(const struct syscallname *name,
835     abi_long arg0, abi_long arg1, abi_long arg2,
836     abi_long arg3, abi_long arg4, abi_long arg5)
837 {
838     print_syscall_prologue(name);
839     print_at_dirfd(arg0, 0);
840     print_string(arg1, 0);
841     print_raw_param("%d", arg2, 0);
842     print_raw_param("%d", arg3, 0);
843     print_flags(at_file_flags, arg4, 1);
844     print_syscall_epilogue(name);
845 }
846 #endif
847 
848 #if defined(TARGET_NR_fcntl) || defined(TARGET_NR_fcntl64)
849 static void
850 print_fcntl(const struct syscallname *name,
851     abi_long arg0, abi_long arg1, abi_long arg2,
852     abi_long arg3, abi_long arg4, abi_long arg5)
853 {
854     print_syscall_prologue(name);
855     print_raw_param("%d", arg0, 0);
856     switch(arg1) {
857     case TARGET_F_DUPFD:
858         gemu_log("F_DUPFD,");
859         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
860         break;
861     case TARGET_F_GETFD:
862         gemu_log("F_GETFD");
863         break;
864     case TARGET_F_SETFD:
865         gemu_log("F_SETFD,");
866         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
867         break;
868     case TARGET_F_GETFL:
869         gemu_log("F_GETFL");
870         break;
871     case TARGET_F_SETFL:
872         gemu_log("F_SETFL,");
873         print_open_flags(arg2, 1);
874         break;
875     case TARGET_F_GETLK:
876         gemu_log("F_GETLK,");
877         print_pointer(arg2, 1);
878         break;
879     case TARGET_F_SETLK:
880         gemu_log("F_SETLK,");
881         print_pointer(arg2, 1);
882         break;
883     case TARGET_F_SETLKW:
884         gemu_log("F_SETLKW,");
885         print_pointer(arg2, 1);
886         break;
887     case TARGET_F_GETOWN:
888         gemu_log("F_GETOWN");
889         break;
890     case TARGET_F_SETOWN:
891         gemu_log("F_SETOWN,");
892         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
893         break;
894     case TARGET_F_GETSIG:
895         gemu_log("F_GETSIG");
896         break;
897     case TARGET_F_SETSIG:
898         gemu_log("F_SETSIG,");
899         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
900         break;
901 #if TARGET_ABI_BITS == 32
902     case TARGET_F_GETLK64:
903         gemu_log("F_GETLK64,");
904         print_pointer(arg2, 1);
905         break;
906     case TARGET_F_SETLK64:
907         gemu_log("F_SETLK64,");
908         print_pointer(arg2, 1);
909         break;
910     case TARGET_F_SETLKW64:
911         gemu_log("F_SETLKW64,");
912         print_pointer(arg2, 1);
913         break;
914 #endif
915     case TARGET_F_SETLEASE:
916         gemu_log("F_SETLEASE,");
917         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
918         break;
919     case TARGET_F_GETLEASE:
920         gemu_log("F_GETLEASE");
921         break;
922     case TARGET_F_DUPFD_CLOEXEC:
923         gemu_log("F_DUPFD_CLOEXEC,");
924         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
925         break;
926     case TARGET_F_NOTIFY:
927         gemu_log("F_NOTIFY,");
928         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
929         break;
930     default:
931         print_raw_param(TARGET_ABI_FMT_ld, arg1, 0);
932         print_pointer(arg2, 1);
933         break;
934     }
935     print_syscall_epilogue(name);
936 }
937 #define print_fcntl64   print_fcntl
938 #endif
939 
940 
941 #ifdef TARGET_NR_futimesat
942 static void
943 print_futimesat(const struct syscallname *name,
944     abi_long arg0, abi_long arg1, abi_long arg2,
945     abi_long arg3, abi_long arg4, abi_long arg5)
946 {
947     print_syscall_prologue(name);
948     print_at_dirfd(arg0, 0);
949     print_string(arg1, 0);
950     print_timeval(arg2, 0);
951     print_timeval(arg2 + sizeof (struct target_timeval), 1);
952     print_syscall_epilogue(name);
953 }
954 #endif
955 
956 #ifdef TARGET_NR_link
957 static void
958 print_link(const struct syscallname *name,
959     abi_long arg0, abi_long arg1, abi_long arg2,
960     abi_long arg3, abi_long arg4, abi_long arg5)
961 {
962     print_syscall_prologue(name);
963     print_string(arg0, 0);
964     print_string(arg1, 1);
965     print_syscall_epilogue(name);
966 }
967 #endif
968 
969 #ifdef TARGET_NR_linkat
970 static void
971 print_linkat(const struct syscallname *name,
972     abi_long arg0, abi_long arg1, abi_long arg2,
973     abi_long arg3, abi_long arg4, abi_long arg5)
974 {
975     print_syscall_prologue(name);
976     print_at_dirfd(arg0, 0);
977     print_string(arg1, 0);
978     print_at_dirfd(arg2, 0);
979     print_string(arg3, 0);
980     print_flags(at_file_flags, arg4, 1);
981     print_syscall_epilogue(name);
982 }
983 #endif
984 
985 #ifdef TARGET_NR__llseek
986 static void
987 print__llseek(const struct syscallname *name,
988     abi_long arg0, abi_long arg1, abi_long arg2,
989     abi_long arg3, abi_long arg4, abi_long arg5)
990 {
991     const char *whence = "UNKNOWN";
992     print_syscall_prologue(name);
993     print_raw_param("%d", arg0, 0);
994     print_raw_param("%ld", arg1, 0);
995     print_raw_param("%ld", arg2, 0);
996     print_pointer(arg3, 0);
997     switch(arg4) {
998     case SEEK_SET: whence = "SEEK_SET"; break;
999     case SEEK_CUR: whence = "SEEK_CUR"; break;
1000     case SEEK_END: whence = "SEEK_END"; break;
1001     }
1002     gemu_log("%s",whence);
1003     print_syscall_epilogue(name);
1004 }
1005 #endif
1006 
1007 #if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) || \
1008     defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64)
1009 static void
1010 print_stat(const struct syscallname *name,
1011     abi_long arg0, abi_long arg1, abi_long arg2,
1012     abi_long arg3, abi_long arg4, abi_long arg5)
1013 {
1014     print_syscall_prologue(name);
1015     print_string(arg0, 0);
1016     print_pointer(arg1, 1);
1017     print_syscall_epilogue(name);
1018 }
1019 #define print_lstat     print_stat
1020 #define print_stat64	print_stat
1021 #define print_lstat64   print_stat
1022 #endif
1023 
1024 #if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
1025 static void
1026 print_fstat(const struct syscallname *name,
1027     abi_long arg0, abi_long arg1, abi_long arg2,
1028     abi_long arg3, abi_long arg4, abi_long arg5)
1029 {
1030     print_syscall_prologue(name);
1031     print_raw_param("%d", arg0, 0);
1032     print_pointer(arg1, 1);
1033     print_syscall_epilogue(name);
1034 }
1035 #define print_fstat64     print_fstat
1036 #endif
1037 
1038 #ifdef TARGET_NR_mkdir
1039 static void
1040 print_mkdir(const struct syscallname *name,
1041     abi_long arg0, abi_long arg1, abi_long arg2,
1042     abi_long arg3, abi_long arg4, abi_long arg5)
1043 {
1044     print_syscall_prologue(name);
1045     print_string(arg0, 0);
1046     print_file_mode(arg1, 1);
1047     print_syscall_epilogue(name);
1048 }
1049 #endif
1050 
1051 #ifdef TARGET_NR_mkdirat
1052 static void
1053 print_mkdirat(const struct syscallname *name,
1054     abi_long arg0, abi_long arg1, abi_long arg2,
1055     abi_long arg3, abi_long arg4, abi_long arg5)
1056 {
1057     print_syscall_prologue(name);
1058     print_at_dirfd(arg0, 0);
1059     print_string(arg1, 0);
1060     print_file_mode(arg2, 1);
1061     print_syscall_epilogue(name);
1062 }
1063 #endif
1064 
1065 #ifdef TARGET_NR_rmdir
1066 static void
1067 print_rmdir(const struct syscallname *name,
1068     abi_long arg0, abi_long arg1, abi_long arg2,
1069     abi_long arg3, abi_long arg4, abi_long arg5)
1070 {
1071     print_syscall_prologue(name);
1072     print_string(arg0, 0);
1073     print_syscall_epilogue(name);
1074 }
1075 #endif
1076 
1077 #ifdef TARGET_NR_rt_sigaction
1078 static void
1079 print_rt_sigaction(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_signal(arg0, 0);
1085     print_pointer(arg1, 0);
1086     print_pointer(arg2, 1);
1087     print_syscall_epilogue(name);
1088 }
1089 #endif
1090 
1091 #ifdef TARGET_NR_rt_sigprocmask
1092 static void
1093 print_rt_sigprocmask(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     const char *how = "UNKNOWN";
1098     print_syscall_prologue(name);
1099     switch(arg0) {
1100     case TARGET_SIG_BLOCK: how = "SIG_BLOCK"; break;
1101     case TARGET_SIG_UNBLOCK: how = "SIG_UNBLOCK"; break;
1102     case TARGET_SIG_SETMASK: how = "SIG_SETMASK"; break;
1103     }
1104     gemu_log("%s,",how);
1105     print_pointer(arg1, 0);
1106     print_pointer(arg2, 1);
1107     print_syscall_epilogue(name);
1108 }
1109 #endif
1110 
1111 #ifdef TARGET_NR_mknod
1112 static void
1113 print_mknod(const struct syscallname *name,
1114     abi_long arg0, abi_long arg1, abi_long arg2,
1115     abi_long arg3, abi_long arg4, abi_long arg5)
1116 {
1117     int hasdev = (arg1 & (S_IFCHR|S_IFBLK));
1118 
1119     print_syscall_prologue(name);
1120     print_string(arg0, 0);
1121     print_file_mode(arg1, (hasdev == 0));
1122     if (hasdev) {
1123         print_raw_param("makedev(%d", major(arg2), 0);
1124         print_raw_param("%d)", minor(arg2), 1);
1125     }
1126     print_syscall_epilogue(name);
1127 }
1128 #endif
1129 
1130 #ifdef TARGET_NR_mknodat
1131 static void
1132 print_mknodat(const struct syscallname *name,
1133     abi_long arg0, abi_long arg1, abi_long arg2,
1134     abi_long arg3, abi_long arg4, abi_long arg5)
1135 {
1136     int hasdev = (arg2 & (S_IFCHR|S_IFBLK));
1137 
1138     print_syscall_prologue(name);
1139     print_at_dirfd(arg0, 0);
1140     print_string(arg1, 0);
1141     print_file_mode(arg2, (hasdev == 0));
1142     if (hasdev) {
1143         print_raw_param("makedev(%d", major(arg3), 0);
1144         print_raw_param("%d)", minor(arg3), 1);
1145     }
1146     print_syscall_epilogue(name);
1147 }
1148 #endif
1149 
1150 #ifdef TARGET_NR_mq_open
1151 static void
1152 print_mq_open(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     int is_creat = (arg1 & TARGET_O_CREAT);
1157 
1158     print_syscall_prologue(name);
1159     print_string(arg0, 0);
1160     print_open_flags(arg1, (is_creat == 0));
1161     if (is_creat) {
1162         print_file_mode(arg2, 0);
1163         print_pointer(arg3, 1);
1164     }
1165     print_syscall_epilogue(name);
1166 }
1167 #endif
1168 
1169 #ifdef TARGET_NR_open
1170 static void
1171 print_open(const struct syscallname *name,
1172     abi_long arg0, abi_long arg1, abi_long arg2,
1173     abi_long arg3, abi_long arg4, abi_long arg5)
1174 {
1175     int is_creat = (arg1 & TARGET_O_CREAT);
1176 
1177     print_syscall_prologue(name);
1178     print_string(arg0, 0);
1179     print_open_flags(arg1, (is_creat == 0));
1180     if (is_creat)
1181         print_file_mode(arg2, 1);
1182     print_syscall_epilogue(name);
1183 }
1184 #endif
1185 
1186 #ifdef TARGET_NR_openat
1187 static void
1188 print_openat(const struct syscallname *name,
1189     abi_long arg0, abi_long arg1, abi_long arg2,
1190     abi_long arg3, abi_long arg4, abi_long arg5)
1191 {
1192     int is_creat = (arg2 & TARGET_O_CREAT);
1193 
1194     print_syscall_prologue(name);
1195     print_at_dirfd(arg0, 0);
1196     print_string(arg1, 0);
1197     print_open_flags(arg2, (is_creat == 0));
1198     if (is_creat)
1199         print_file_mode(arg3, 1);
1200     print_syscall_epilogue(name);
1201 }
1202 #endif
1203 
1204 #ifdef TARGET_NR_mq_unlink
1205 static void
1206 print_mq_unlink(const struct syscallname *name,
1207     abi_long arg0, abi_long arg1, abi_long arg2,
1208     abi_long arg3, abi_long arg4, abi_long arg5)
1209 {
1210     print_syscall_prologue(name);
1211     print_string(arg0, 1);
1212     print_syscall_epilogue(name);
1213 }
1214 #endif
1215 
1216 #if defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)
1217 static void
1218 print_fstatat64(const struct syscallname *name,
1219     abi_long arg0, abi_long arg1, abi_long arg2,
1220     abi_long arg3, abi_long arg4, abi_long arg5)
1221 {
1222     print_syscall_prologue(name);
1223     print_at_dirfd(arg0, 0);
1224     print_string(arg1, 0);
1225     print_pointer(arg2, 0);
1226     print_flags(at_file_flags, arg3, 1);
1227     print_syscall_epilogue(name);
1228 }
1229 #define print_newfstatat    print_fstatat64
1230 #endif
1231 
1232 #ifdef TARGET_NR_readlink
1233 static void
1234 print_readlink(const struct syscallname *name,
1235     abi_long arg0, abi_long arg1, abi_long arg2,
1236     abi_long arg3, abi_long arg4, abi_long arg5)
1237 {
1238     print_syscall_prologue(name);
1239     print_string(arg0, 0);
1240     print_pointer(arg1, 0);
1241     print_raw_param("%u", arg2, 1);
1242     print_syscall_epilogue(name);
1243 }
1244 #endif
1245 
1246 #ifdef TARGET_NR_readlinkat
1247 static void
1248 print_readlinkat(const struct syscallname *name,
1249     abi_long arg0, abi_long arg1, abi_long arg2,
1250     abi_long arg3, abi_long arg4, abi_long arg5)
1251 {
1252     print_syscall_prologue(name);
1253     print_at_dirfd(arg0, 0);
1254     print_string(arg1, 0);
1255     print_pointer(arg2, 0);
1256     print_raw_param("%u", arg3, 1);
1257     print_syscall_epilogue(name);
1258 }
1259 #endif
1260 
1261 #ifdef TARGET_NR_rename
1262 static void
1263 print_rename(const struct syscallname *name,
1264     abi_long arg0, abi_long arg1, abi_long arg2,
1265     abi_long arg3, abi_long arg4, abi_long arg5)
1266 {
1267     print_syscall_prologue(name);
1268     print_string(arg0, 0);
1269     print_string(arg1, 1);
1270     print_syscall_epilogue(name);
1271 }
1272 #endif
1273 
1274 #ifdef TARGET_NR_renameat
1275 static void
1276 print_renameat(const struct syscallname *name,
1277     abi_long arg0, abi_long arg1, abi_long arg2,
1278     abi_long arg3, abi_long arg4, abi_long arg5)
1279 {
1280     print_syscall_prologue(name);
1281     print_at_dirfd(arg0, 0);
1282     print_string(arg1, 0);
1283     print_at_dirfd(arg2, 0);
1284     print_string(arg3, 1);
1285     print_syscall_epilogue(name);
1286 }
1287 #endif
1288 
1289 #ifdef TARGET_NR_statfs
1290 static void
1291 print_statfs(const struct syscallname *name,
1292     abi_long arg0, abi_long arg1, abi_long arg2,
1293     abi_long arg3, abi_long arg4, abi_long arg5)
1294 {
1295     print_syscall_prologue(name);
1296     print_string(arg0, 0);
1297     print_pointer(arg1, 1);
1298     print_syscall_epilogue(name);
1299 }
1300 #define print_statfs64  print_statfs
1301 #endif
1302 
1303 #ifdef TARGET_NR_symlink
1304 static void
1305 print_symlink(const struct syscallname *name,
1306     abi_long arg0, abi_long arg1, abi_long arg2,
1307     abi_long arg3, abi_long arg4, abi_long arg5)
1308 {
1309     print_syscall_prologue(name);
1310     print_string(arg0, 0);
1311     print_string(arg1, 1);
1312     print_syscall_epilogue(name);
1313 }
1314 #endif
1315 
1316 #ifdef TARGET_NR_symlinkat
1317 static void
1318 print_symlinkat(const struct syscallname *name,
1319     abi_long arg0, abi_long arg1, abi_long arg2,
1320     abi_long arg3, abi_long arg4, abi_long arg5)
1321 {
1322     print_syscall_prologue(name);
1323     print_string(arg0, 0);
1324     print_at_dirfd(arg1, 0);
1325     print_string(arg2, 1);
1326     print_syscall_epilogue(name);
1327 }
1328 #endif
1329 
1330 #ifdef TARGET_NR_mount
1331 static void
1332 print_mount(const struct syscallname *name,
1333     abi_long arg0, abi_long arg1, abi_long arg2,
1334     abi_long arg3, abi_long arg4, abi_long arg5)
1335 {
1336     print_syscall_prologue(name);
1337     print_string(arg0, 0);
1338     print_string(arg1, 0);
1339     print_string(arg2, 0);
1340     print_flags(mount_flags, arg3, 0);
1341     print_pointer(arg4, 1);
1342     print_syscall_epilogue(name);
1343 }
1344 #endif
1345 
1346 #ifdef TARGET_NR_umount
1347 static void
1348 print_umount(const struct syscallname *name,
1349     abi_long arg0, abi_long arg1, abi_long arg2,
1350     abi_long arg3, abi_long arg4, abi_long arg5)
1351 {
1352     print_syscall_prologue(name);
1353     print_string(arg0, 1);
1354     print_syscall_epilogue(name);
1355 }
1356 #endif
1357 
1358 #ifdef TARGET_NR_umount2
1359 static void
1360 print_umount2(const struct syscallname *name,
1361     abi_long arg0, abi_long arg1, abi_long arg2,
1362     abi_long arg3, abi_long arg4, abi_long arg5)
1363 {
1364     print_syscall_prologue(name);
1365     print_string(arg0, 0);
1366     print_flags(umount2_flags, arg1, 1);
1367     print_syscall_epilogue(name);
1368 }
1369 #endif
1370 
1371 #ifdef TARGET_NR_unlink
1372 static void
1373 print_unlink(const struct syscallname *name,
1374     abi_long arg0, abi_long arg1, abi_long arg2,
1375     abi_long arg3, abi_long arg4, abi_long arg5)
1376 {
1377     print_syscall_prologue(name);
1378     print_string(arg0, 1);
1379     print_syscall_epilogue(name);
1380 }
1381 #endif
1382 
1383 #ifdef TARGET_NR_unlinkat
1384 static void
1385 print_unlinkat(const struct syscallname *name,
1386     abi_long arg0, abi_long arg1, abi_long arg2,
1387     abi_long arg3, abi_long arg4, abi_long arg5)
1388 {
1389     print_syscall_prologue(name);
1390     print_at_dirfd(arg0, 0);
1391     print_string(arg1, 0);
1392     print_flags(unlinkat_flags, arg2, 1);
1393     print_syscall_epilogue(name);
1394 }
1395 #endif
1396 
1397 #ifdef TARGET_NR_utime
1398 static void
1399 print_utime(const struct syscallname *name,
1400     abi_long arg0, abi_long arg1, abi_long arg2,
1401     abi_long arg3, abi_long arg4, abi_long arg5)
1402 {
1403     print_syscall_prologue(name);
1404     print_string(arg0, 0);
1405     print_pointer(arg1, 1);
1406     print_syscall_epilogue(name);
1407 }
1408 #endif
1409 
1410 #ifdef TARGET_NR_utimes
1411 static void
1412 print_utimes(const struct syscallname *name,
1413     abi_long arg0, abi_long arg1, abi_long arg2,
1414     abi_long arg3, abi_long arg4, abi_long arg5)
1415 {
1416     print_syscall_prologue(name);
1417     print_string(arg0, 0);
1418     print_pointer(arg1, 1);
1419     print_syscall_epilogue(name);
1420 }
1421 #endif
1422 
1423 #ifdef TARGET_NR_utimensat
1424 static void
1425 print_utimensat(const struct syscallname *name,
1426     abi_long arg0, abi_long arg1, abi_long arg2,
1427     abi_long arg3, abi_long arg4, abi_long arg5)
1428 {
1429     print_syscall_prologue(name);
1430     print_at_dirfd(arg0, 0);
1431     print_string(arg1, 0);
1432     print_pointer(arg2, 0);
1433     print_flags(at_file_flags, arg3, 1);
1434     print_syscall_epilogue(name);
1435 }
1436 #endif
1437 
1438 #if defined(TARGET_NR_mmap) || defined(TARGET_NR_mmap2)
1439 static void
1440 print_mmap(const struct syscallname *name,
1441     abi_long arg0, abi_long arg1, abi_long arg2,
1442     abi_long arg3, abi_long arg4, abi_long arg5)
1443 {
1444     print_syscall_prologue(name);
1445     print_pointer(arg0, 0);
1446     print_raw_param("%d", arg1, 0);
1447     print_flags(mmap_prot_flags, arg2, 0);
1448     print_flags(mmap_flags, arg3, 0);
1449     print_raw_param("%d", arg4, 0);
1450     print_raw_param("%#x", arg5, 1);
1451     print_syscall_epilogue(name);
1452 }
1453 #define print_mmap2     print_mmap
1454 #endif
1455 
1456 #ifdef TARGET_NR_mprotect
1457 static void
1458 print_mprotect(const struct syscallname *name,
1459     abi_long arg0, abi_long arg1, abi_long arg2,
1460     abi_long arg3, abi_long arg4, abi_long arg5)
1461 {
1462     print_syscall_prologue(name);
1463     print_pointer(arg0, 0);
1464     print_raw_param("%d", arg1, 0);
1465     print_flags(mmap_prot_flags, arg2, 1);
1466     print_syscall_epilogue(name);
1467 }
1468 #endif
1469 
1470 #ifdef TARGET_NR_munmap
1471 static void
1472 print_munmap(const struct syscallname *name,
1473     abi_long arg0, abi_long arg1, abi_long arg2,
1474     abi_long arg3, abi_long arg4, abi_long arg5)
1475 {
1476     print_syscall_prologue(name);
1477     print_pointer(arg0, 0);
1478     print_raw_param("%d", arg1, 1);
1479     print_syscall_epilogue(name);
1480 }
1481 #endif
1482 
1483 #ifdef TARGET_NR_futex
1484 static void print_futex_op(abi_long tflag, int last)
1485 {
1486 #define print_op(val) \
1487 if( cmd == val ) { \
1488     gemu_log(#val); \
1489     return; \
1490 }
1491 
1492     int cmd = (int)tflag;
1493 #ifdef FUTEX_PRIVATE_FLAG
1494     if (cmd & FUTEX_PRIVATE_FLAG) {
1495         gemu_log("FUTEX_PRIVATE_FLAG|");
1496         cmd &= ~FUTEX_PRIVATE_FLAG;
1497     }
1498 #endif
1499 #ifdef FUTEX_CLOCK_REALTIME
1500     if (cmd & FUTEX_CLOCK_REALTIME) {
1501         gemu_log("FUTEX_CLOCK_REALTIME|");
1502         cmd &= ~FUTEX_CLOCK_REALTIME;
1503     }
1504 #endif
1505     print_op(FUTEX_WAIT)
1506     print_op(FUTEX_WAKE)
1507     print_op(FUTEX_FD)
1508     print_op(FUTEX_REQUEUE)
1509     print_op(FUTEX_CMP_REQUEUE)
1510     print_op(FUTEX_WAKE_OP)
1511     print_op(FUTEX_LOCK_PI)
1512     print_op(FUTEX_UNLOCK_PI)
1513     print_op(FUTEX_TRYLOCK_PI)
1514 #ifdef FUTEX_WAIT_BITSET
1515     print_op(FUTEX_WAIT_BITSET)
1516 #endif
1517 #ifdef FUTEX_WAKE_BITSET
1518     print_op(FUTEX_WAKE_BITSET)
1519 #endif
1520     /* unknown values */
1521     gemu_log("%d",cmd);
1522 }
1523 
1524 static void
1525 print_futex(const struct syscallname *name,
1526     abi_long arg0, abi_long arg1, abi_long arg2,
1527     abi_long arg3, abi_long arg4, abi_long arg5)
1528 {
1529     print_syscall_prologue(name);
1530     print_pointer(arg0, 0);
1531     print_futex_op(arg1, 0);
1532     print_raw_param(",%d", arg2, 0);
1533     print_pointer(arg3, 0); /* struct timespec */
1534     print_pointer(arg4, 0);
1535     print_raw_param("%d", arg4, 1);
1536     print_syscall_epilogue(name);
1537 }
1538 #endif
1539 
1540 #ifdef TARGET_NR_kill
1541 static void
1542 print_kill(const struct syscallname *name,
1543     abi_long arg0, abi_long arg1, abi_long arg2,
1544     abi_long arg3, abi_long arg4, abi_long arg5)
1545 {
1546     print_syscall_prologue(name);
1547     print_raw_param("%d", arg0, 0);
1548     print_signal(arg1, 1);
1549     print_syscall_epilogue(name);
1550 }
1551 #endif
1552 
1553 /*
1554  * An array of all of the syscalls we know about
1555  */
1556 
1557 static const struct syscallname scnames[] = {
1558 #include "strace.list"
1559 };
1560 
1561 static int nsyscalls = ARRAY_SIZE(scnames);
1562 
1563 /*
1564  * The public interface to this module.
1565  */
1566 void
1567 print_syscall(int num,
1568               abi_long arg1, abi_long arg2, abi_long arg3,
1569               abi_long arg4, abi_long arg5, abi_long arg6)
1570 {
1571     int i;
1572     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 ")";
1573 
1574     gemu_log("%d ", getpid() );
1575 
1576     for(i=0;i<nsyscalls;i++)
1577         if( scnames[i].nr == num ) {
1578             if( scnames[i].call != NULL ) {
1579                 scnames[i].call(&scnames[i],arg1,arg2,arg3,arg4,arg5,arg6);
1580             } else {
1581                 /* XXX: this format system is broken because it uses
1582                    host types and host pointers for strings */
1583                 if( scnames[i].format != NULL )
1584                     format = scnames[i].format;
1585                 gemu_log(format,scnames[i].name, arg1,arg2,arg3,arg4,arg5,arg6);
1586             }
1587             return;
1588         }
1589     gemu_log("Unknown syscall %d\n", num);
1590 }
1591 
1592 
1593 void
1594 print_syscall_ret(int num, abi_long ret)
1595 {
1596     int i;
1597     char *errstr = NULL;
1598 
1599     for(i=0;i<nsyscalls;i++)
1600         if( scnames[i].nr == num ) {
1601             if( scnames[i].result != NULL ) {
1602                 scnames[i].result(&scnames[i],ret);
1603             } else {
1604                 if (ret < 0) {
1605                     errstr = target_strerror(-ret);
1606                 }
1607                 if (errstr) {
1608                     gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n",
1609                              -ret, errstr);
1610                 } else {
1611                     gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
1612                 }
1613             }
1614             break;
1615         }
1616 }
1617