xref: /openbmc/qemu/linux-user/strace.c (revision 2345c77c)
1 #include <stdio.h>
2 #include <errno.h>
3 #include <sys/ipc.h>
4 #include <sys/msg.h>
5 #include <sys/sem.h>
6 #include <sys/shm.h>
7 #include <sys/select.h>
8 #include <sys/types.h>
9 #include <sys/mount.h>
10 #include <sys/mman.h>
11 #include <unistd.h>
12 #include <sched.h>
13 #include "qemu.h"
14 
15 int do_strace=0;
16 
17 struct syscallname {
18     int nr;
19     const char *name;
20     const char *format;
21     void (*call)(const struct syscallname *,
22                  abi_long, abi_long, abi_long,
23                  abi_long, abi_long, abi_long);
24     void (*result)(const struct syscallname *, abi_long);
25 };
26 
27 #ifdef __GNUC__
28 /*
29  * It is possible that target doesn't have syscall that uses
30  * following flags but we don't want the compiler to warn
31  * us about them being unused.  Same applies to utility print
32  * functions.  It is ok to keep them while not used.
33  */
34 #define UNUSED __attribute__ ((unused))
35 #else
36 #define UNUSED
37 #endif
38 
39 /*
40  * Structure used to translate flag values into strings.  This is
41  * similar that is in the actual strace tool.
42  */
43 struct flags {
44     abi_long    f_value;  /* flag */
45     const char  *f_string; /* stringified flag */
46 };
47 
48 /* common flags for all architectures */
49 #define FLAG_GENERIC(name) { name, #name }
50 /* target specific flags (syscall_defs.h has TARGET_<flag>) */
51 #define FLAG_TARGET(name)  { TARGET_ ## name, #name }
52 /* end of flags array */
53 #define FLAG_END           { 0, NULL }
54 
55 UNUSED static const char *get_comma(int);
56 UNUSED static void print_pointer(abi_long, int);
57 UNUSED static void print_flags(const struct flags *, abi_long, int);
58 UNUSED static void print_at_dirfd(abi_long, int);
59 UNUSED static void print_file_mode(abi_long, int);
60 UNUSED static void print_open_flags(abi_long, int);
61 UNUSED static void print_syscall_prologue(const struct syscallname *);
62 UNUSED static void print_syscall_epilogue(const struct syscallname *);
63 UNUSED static void print_string(abi_long, int);
64 UNUSED static void print_raw_param(const char *, abi_long, int);
65 UNUSED static void print_timeval(abi_ulong, int);
66 UNUSED static void print_number(abi_long, int);
67 UNUSED static void print_signal(abi_ulong, int);
68 
69 /*
70  * Utility functions
71  */
72 static void
73 print_ipc_cmd(int cmd)
74 {
75 #define output_cmd(val) \
76 if( cmd == val ) { \
77     gemu_log(#val); \
78     return; \
79 }
80 
81     cmd &= 0xff;
82 
83     /* General IPC commands */
84     output_cmd( IPC_RMID );
85     output_cmd( IPC_SET );
86     output_cmd( IPC_STAT );
87     output_cmd( IPC_INFO );
88     /* msgctl() commands */
89     #ifdef __USER_MISC
90     output_cmd( MSG_STAT );
91     output_cmd( MSG_INFO );
92     #endif
93     /* shmctl() commands */
94     output_cmd( SHM_LOCK );
95     output_cmd( SHM_UNLOCK );
96     output_cmd( SHM_STAT );
97     output_cmd( SHM_INFO );
98     /* semctl() commands */
99     output_cmd( GETPID );
100     output_cmd( GETVAL );
101     output_cmd( GETALL );
102     output_cmd( GETNCNT );
103     output_cmd( GETZCNT );
104     output_cmd( SETVAL );
105     output_cmd( SETALL );
106     output_cmd( SEM_STAT );
107     output_cmd( SEM_INFO );
108     output_cmd( IPC_RMID );
109     output_cmd( IPC_RMID );
110     output_cmd( IPC_RMID );
111     output_cmd( IPC_RMID );
112     output_cmd( IPC_RMID );
113     output_cmd( IPC_RMID );
114     output_cmd( IPC_RMID );
115     output_cmd( IPC_RMID );
116     output_cmd( IPC_RMID );
117 
118     /* Some value we don't recognize */
119     gemu_log("%d",cmd);
120 }
121 
122 static void
123 print_signal(abi_ulong arg, int last)
124 {
125     const char *signal_name = NULL;
126     switch(arg) {
127     case TARGET_SIGHUP: signal_name = "SIGHUP"; break;
128     case TARGET_SIGINT: signal_name = "SIGINT"; break;
129     case TARGET_SIGQUIT: signal_name = "SIGQUIT"; break;
130     case TARGET_SIGILL: signal_name = "SIGILL"; break;
131     case TARGET_SIGABRT: signal_name = "SIGABRT"; break;
132     case TARGET_SIGFPE: signal_name = "SIGFPE"; break;
133     case TARGET_SIGKILL: signal_name = "SIGKILL"; break;
134     case TARGET_SIGSEGV: signal_name = "SIGSEGV"; break;
135     case TARGET_SIGPIPE: signal_name = "SIGPIPE"; break;
136     case TARGET_SIGALRM: signal_name = "SIGALRM"; break;
137     case TARGET_SIGTERM: signal_name = "SIGTERM"; break;
138     case TARGET_SIGUSR1: signal_name = "SIGUSR1"; break;
139     case TARGET_SIGUSR2: signal_name = "SIGUSR2"; break;
140     case TARGET_SIGCHLD: signal_name = "SIGCHLD"; break;
141     case TARGET_SIGCONT: signal_name = "SIGCONT"; break;
142     case TARGET_SIGSTOP: signal_name = "SIGSTOP"; break;
143     case TARGET_SIGTTIN: signal_name = "SIGTTIN"; break;
144     case TARGET_SIGTTOU: signal_name = "SIGTTOU"; break;
145     }
146     if (signal_name == NULL) {
147         print_raw_param("%ld", arg, 1);
148         return;
149     }
150     gemu_log("%s%s", signal_name, get_comma(last));
151 }
152 
153 #ifdef TARGET_NR__newselect
154 static void
155 print_fdset(int n, abi_ulong target_fds_addr)
156 {
157     int i;
158 
159     gemu_log("[");
160     if( target_fds_addr ) {
161         abi_long *target_fds;
162 
163         target_fds = lock_user(VERIFY_READ,
164                                target_fds_addr,
165                                sizeof(*target_fds)*(n / TARGET_ABI_BITS + 1),
166                                1);
167 
168         if (!target_fds)
169             return;
170 
171         for (i=n; i>=0; i--) {
172             if ((tswapl(target_fds[i / TARGET_ABI_BITS]) >> (i & (TARGET_ABI_BITS - 1))) & 1)
173                 gemu_log("%d,", i );
174             }
175         unlock_user(target_fds, target_fds_addr, 0);
176     }
177     gemu_log("]");
178 }
179 #endif
180 
181 /*
182  * Sysycall specific output functions
183  */
184 
185 /* select */
186 #ifdef TARGET_NR__newselect
187 static long newselect_arg1 = 0;
188 static long newselect_arg2 = 0;
189 static long newselect_arg3 = 0;
190 static long newselect_arg4 = 0;
191 static long newselect_arg5 = 0;
192 
193 static void
194 print_newselect(const struct syscallname *name,
195                 abi_long arg1, abi_long arg2, abi_long arg3,
196                 abi_long arg4, abi_long arg5, abi_long arg6)
197 {
198     gemu_log("%s(" TARGET_ABI_FMT_ld ",", name->name, arg1);
199     print_fdset(arg1, arg2);
200     gemu_log(",");
201     print_fdset(arg1, arg3);
202     gemu_log(",");
203     print_fdset(arg1, arg4);
204     gemu_log(",");
205     print_timeval(arg5, 1);
206     gemu_log(")");
207 
208     /* save for use in the return output function below */
209     newselect_arg1=arg1;
210     newselect_arg2=arg2;
211     newselect_arg3=arg3;
212     newselect_arg4=arg4;
213     newselect_arg5=arg5;
214 }
215 #endif
216 
217 #ifdef TARGET_NR_semctl
218 static void
219 print_semctl(const struct syscallname *name,
220              abi_long arg1, abi_long arg2, abi_long arg3,
221              abi_long arg4, abi_long arg5, abi_long arg6)
222 {
223     gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", name->name, arg1, arg2);
224     print_ipc_cmd(arg3);
225     gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
226 }
227 #endif
228 
229 static void
230 print_execve(const struct syscallname *name,
231              abi_long arg1, abi_long arg2, abi_long arg3,
232              abi_long arg4, abi_long arg5, abi_long arg6)
233 {
234     abi_ulong arg_ptr_addr;
235     char *s;
236 
237     if (!(s = lock_user_string(arg1)))
238         return;
239     gemu_log("%s(\"%s\",{", name->name, s);
240     unlock_user(s, arg1, 0);
241 
242     for (arg_ptr_addr = arg2; ; arg_ptr_addr += sizeof(abi_ulong)) {
243         abi_ulong *arg_ptr, arg_addr;
244 
245 	arg_ptr = lock_user(VERIFY_READ, arg_ptr_addr, sizeof(abi_ulong), 1);
246         if (!arg_ptr)
247             return;
248 	arg_addr = tswapl(*arg_ptr);
249 	unlock_user(arg_ptr, arg_ptr_addr, 0);
250         if (!arg_addr)
251             break;
252         if ((s = lock_user_string(arg_addr))) {
253             gemu_log("\"%s\",", s);
254             unlock_user(s, arg_addr, 0);
255         }
256     }
257 
258     gemu_log("NULL})");
259 }
260 
261 #ifdef TARGET_NR_ipc
262 static void
263 print_ipc(const struct syscallname *name,
264           abi_long arg1, abi_long arg2, abi_long arg3,
265           abi_long arg4, abi_long arg5, abi_long arg6)
266 {
267     switch(arg1) {
268     case IPCOP_semctl:
269         gemu_log("semctl(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", arg1, arg2);
270         print_ipc_cmd(arg3);
271         gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
272         break;
273     default:
274         gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ")",
275                  name->name, arg1, arg2, arg3, arg4);
276     }
277 }
278 #endif
279 
280 /*
281  * Variants for the return value output function
282  */
283 
284 static void
285 print_syscall_ret_addr(const struct syscallname *name, abi_long ret)
286 {
287 if( ret == -1 ) {
288         gemu_log(" = -1 errno=%d (%s)\n", errno, target_strerror(errno));
289     } else {
290         gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
291     }
292 }
293 
294 #if 0 /* currently unused */
295 static void
296 print_syscall_ret_raw(struct syscallname *name, abi_long ret)
297 {
298         gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
299 }
300 #endif
301 
302 #ifdef TARGET_NR__newselect
303 static void
304 print_syscall_ret_newselect(const struct syscallname *name, abi_long ret)
305 {
306     gemu_log(" = 0x" TARGET_ABI_FMT_lx " (", ret);
307     print_fdset(newselect_arg1,newselect_arg2);
308     gemu_log(",");
309     print_fdset(newselect_arg1,newselect_arg3);
310     gemu_log(",");
311     print_fdset(newselect_arg1,newselect_arg4);
312     gemu_log(",");
313     print_timeval(newselect_arg5, 1);
314     gemu_log(")\n");
315 }
316 #endif
317 
318 UNUSED static struct flags access_flags[] = {
319     FLAG_GENERIC(F_OK),
320     FLAG_GENERIC(R_OK),
321     FLAG_GENERIC(W_OK),
322     FLAG_GENERIC(X_OK),
323     FLAG_END,
324 };
325 
326 UNUSED static struct flags at_file_flags[] = {
327 #ifdef AT_EACCESS
328     FLAG_GENERIC(AT_EACCESS),
329 #endif
330 #ifdef AT_SYMLINK_NOFOLLOW
331     FLAG_GENERIC(AT_SYMLINK_NOFOLLOW),
332 #endif
333     FLAG_END,
334 };
335 
336 UNUSED static struct flags unlinkat_flags[] = {
337 #ifdef AT_REMOVEDIR
338     FLAG_GENERIC(AT_REMOVEDIR),
339 #endif
340     FLAG_END,
341 };
342 
343 UNUSED static struct flags mode_flags[] = {
344     FLAG_GENERIC(S_IFSOCK),
345     FLAG_GENERIC(S_IFLNK),
346     FLAG_GENERIC(S_IFREG),
347     FLAG_GENERIC(S_IFBLK),
348     FLAG_GENERIC(S_IFDIR),
349     FLAG_GENERIC(S_IFCHR),
350     FLAG_GENERIC(S_IFIFO),
351     FLAG_END,
352 };
353 
354 UNUSED static struct flags open_access_flags[] = {
355     FLAG_TARGET(O_RDONLY),
356     FLAG_TARGET(O_WRONLY),
357     FLAG_TARGET(O_RDWR),
358     FLAG_END,
359 };
360 
361 UNUSED static struct flags open_flags[] = {
362     FLAG_TARGET(O_APPEND),
363     FLAG_TARGET(O_CREAT),
364     FLAG_TARGET(O_DIRECTORY),
365     FLAG_TARGET(O_EXCL),
366     FLAG_TARGET(O_LARGEFILE),
367     FLAG_TARGET(O_NOCTTY),
368     FLAG_TARGET(O_NOFOLLOW),
369     FLAG_TARGET(O_NONBLOCK),      /* also O_NDELAY */
370     FLAG_TARGET(O_SYNC),
371     FLAG_TARGET(O_TRUNC),
372 #ifdef O_DIRECT
373     FLAG_TARGET(O_DIRECT),
374 #endif
375     FLAG_END,
376 };
377 
378 UNUSED static struct flags mount_flags[] = {
379 #ifdef MS_BIND
380     FLAG_GENERIC(MS_BIND),
381 #endif
382 #ifdef MS_DIRSYNC
383     FLAG_GENERIC(MS_DIRSYNC),
384 #endif
385     FLAG_GENERIC(MS_MANDLOCK),
386 #ifdef MS_MOVE
387     FLAG_GENERIC(MS_MOVE),
388 #endif
389     FLAG_GENERIC(MS_NOATIME),
390     FLAG_GENERIC(MS_NODEV),
391     FLAG_GENERIC(MS_NODIRATIME),
392     FLAG_GENERIC(MS_NOEXEC),
393     FLAG_GENERIC(MS_NOSUID),
394     FLAG_GENERIC(MS_RDONLY),
395 #ifdef MS_RELATIME
396     FLAG_GENERIC(MS_RELATIME),
397 #endif
398     FLAG_GENERIC(MS_REMOUNT),
399     FLAG_GENERIC(MS_SYNCHRONOUS),
400     FLAG_END,
401 };
402 
403 UNUSED static struct flags umount2_flags[] = {
404 #ifdef MNT_FORCE
405     FLAG_GENERIC(MNT_FORCE),
406 #endif
407 #ifdef MNT_DETACH
408     FLAG_GENERIC(MNT_DETACH),
409 #endif
410 #ifdef MNT_EXPIRE
411     FLAG_GENERIC(MNT_EXPIRE),
412 #endif
413     FLAG_END,
414 };
415 
416 UNUSED static struct flags mmap_prot_flags[] = {
417     FLAG_GENERIC(PROT_NONE),
418     FLAG_GENERIC(PROT_EXEC),
419     FLAG_GENERIC(PROT_READ),
420     FLAG_GENERIC(PROT_WRITE),
421     FLAG_TARGET(PROT_SEM),
422     FLAG_GENERIC(PROT_GROWSDOWN),
423     FLAG_GENERIC(PROT_GROWSUP),
424     FLAG_END,
425 };
426 
427 UNUSED static struct flags mmap_flags[] = {
428     FLAG_TARGET(MAP_SHARED),
429     FLAG_TARGET(MAP_PRIVATE),
430     FLAG_TARGET(MAP_ANONYMOUS),
431     FLAG_TARGET(MAP_DENYWRITE),
432     FLAG_TARGET(MAP_FIXED),
433     FLAG_TARGET(MAP_GROWSDOWN),
434     FLAG_TARGET(MAP_EXECUTABLE),
435 #ifdef MAP_LOCKED
436     FLAG_TARGET(MAP_LOCKED),
437 #endif
438 #ifdef MAP_NONBLOCK
439     FLAG_TARGET(MAP_NONBLOCK),
440 #endif
441     FLAG_TARGET(MAP_NORESERVE),
442 #ifdef MAP_POPULATE
443     FLAG_TARGET(MAP_POPULATE),
444 #endif
445 #ifdef TARGET_MAP_UNINITIALIZED
446     FLAG_TARGET(MAP_UNINITIALIZED),
447 #endif
448     FLAG_END,
449 };
450 
451 UNUSED static struct flags fcntl_flags[] = {
452     FLAG_TARGET(F_DUPFD),
453     FLAG_TARGET(F_GETFD),
454     FLAG_TARGET(F_SETFD),
455     FLAG_TARGET(F_GETFL),
456     FLAG_TARGET(F_SETFL),
457     FLAG_TARGET(F_GETLK),
458     FLAG_TARGET(F_SETLK),
459     FLAG_TARGET(F_SETLKW),
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             tv->tv_sec, 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     print_flags(fcntl_flags, arg1, 0);
857     /*
858      * TODO: check flags and print following argument only
859      *       when needed.
860      */
861     print_pointer(arg2, 1);
862     print_syscall_epilogue(name);
863 }
864 #define print_fcntl64   print_fcntl
865 #endif
866 
867 
868 #ifdef TARGET_NR_futimesat
869 static void
870 print_futimesat(const struct syscallname *name,
871     abi_long arg0, abi_long arg1, abi_long arg2,
872     abi_long arg3, abi_long arg4, abi_long arg5)
873 {
874     print_syscall_prologue(name);
875     print_at_dirfd(arg0, 0);
876     print_string(arg1, 0);
877     print_timeval(arg2, 0);
878     print_timeval(arg2 + sizeof (struct target_timeval), 1);
879     print_syscall_epilogue(name);
880 }
881 #endif
882 
883 #ifdef TARGET_NR_link
884 static void
885 print_link(const struct syscallname *name,
886     abi_long arg0, abi_long arg1, abi_long arg2,
887     abi_long arg3, abi_long arg4, abi_long arg5)
888 {
889     print_syscall_prologue(name);
890     print_string(arg0, 0);
891     print_string(arg1, 1);
892     print_syscall_epilogue(name);
893 }
894 #endif
895 
896 #ifdef TARGET_NR_linkat
897 static void
898 print_linkat(const struct syscallname *name,
899     abi_long arg0, abi_long arg1, abi_long arg2,
900     abi_long arg3, abi_long arg4, abi_long arg5)
901 {
902     print_syscall_prologue(name);
903     print_at_dirfd(arg0, 0);
904     print_string(arg1, 0);
905     print_at_dirfd(arg2, 0);
906     print_string(arg3, 0);
907     print_flags(at_file_flags, arg4, 1);
908     print_syscall_epilogue(name);
909 }
910 #endif
911 
912 #ifdef TARGET_NR__llseek
913 static void
914 print__llseek(const struct syscallname *name,
915     abi_long arg0, abi_long arg1, abi_long arg2,
916     abi_long arg3, abi_long arg4, abi_long arg5)
917 {
918     const char *whence = "UNKNOWN";
919     print_syscall_prologue(name);
920     print_raw_param("%d", arg0, 0);
921     print_raw_param("%ld", arg1, 0);
922     print_raw_param("%ld", arg2, 0);
923     print_pointer(arg3, 0);
924     switch(arg4) {
925     case SEEK_SET: whence = "SEEK_SET"; break;
926     case SEEK_CUR: whence = "SEEK_CUR"; break;
927     case SEEK_END: whence = "SEEK_END"; break;
928     }
929     gemu_log("%s",whence);
930     print_syscall_epilogue(name);
931 }
932 #endif
933 
934 #if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) || \
935     defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64)
936 static void
937 print_stat(const struct syscallname *name,
938     abi_long arg0, abi_long arg1, abi_long arg2,
939     abi_long arg3, abi_long arg4, abi_long arg5)
940 {
941     print_syscall_prologue(name);
942     print_string(arg0, 0);
943     print_pointer(arg1, 1);
944     print_syscall_epilogue(name);
945 }
946 #define print_lstat     print_stat
947 #define print_stat64	print_stat
948 #define print_lstat64   print_stat
949 #endif
950 
951 #if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
952 static void
953 print_fstat(const struct syscallname *name,
954     abi_long arg0, abi_long arg1, abi_long arg2,
955     abi_long arg3, abi_long arg4, abi_long arg5)
956 {
957     print_syscall_prologue(name);
958     print_raw_param("%d", arg0, 0);
959     print_pointer(arg1, 1);
960     print_syscall_epilogue(name);
961 }
962 #define print_fstat64     print_fstat
963 #endif
964 
965 #ifdef TARGET_NR_mkdir
966 static void
967 print_mkdir(const struct syscallname *name,
968     abi_long arg0, abi_long arg1, abi_long arg2,
969     abi_long arg3, abi_long arg4, abi_long arg5)
970 {
971     print_syscall_prologue(name);
972     print_string(arg0, 0);
973     print_file_mode(arg1, 1);
974     print_syscall_epilogue(name);
975 }
976 #endif
977 
978 #ifdef TARGET_NR_mkdirat
979 static void
980 print_mkdirat(const struct syscallname *name,
981     abi_long arg0, abi_long arg1, abi_long arg2,
982     abi_long arg3, abi_long arg4, abi_long arg5)
983 {
984     print_syscall_prologue(name);
985     print_at_dirfd(arg0, 0);
986     print_string(arg1, 0);
987     print_file_mode(arg2, 1);
988     print_syscall_epilogue(name);
989 }
990 #endif
991 
992 #ifdef TARGET_NR_rmdir
993 static void
994 print_rmdir(const struct syscallname *name,
995     abi_long arg0, abi_long arg1, abi_long arg2,
996     abi_long arg3, abi_long arg4, abi_long arg5)
997 {
998     print_syscall_prologue(name);
999     print_string(arg0, 0);
1000     print_syscall_epilogue(name);
1001 }
1002 #endif
1003 
1004 #ifdef TARGET_NR_rt_sigaction
1005 static void
1006 print_rt_sigaction(const struct syscallname *name,
1007     abi_long arg0, abi_long arg1, abi_long arg2,
1008     abi_long arg3, abi_long arg4, abi_long arg5)
1009 {
1010     print_syscall_prologue(name);
1011     print_signal(arg0, 0);
1012     print_pointer(arg1, 0);
1013     print_pointer(arg2, 1);
1014     print_syscall_epilogue(name);
1015 }
1016 #endif
1017 
1018 #ifdef TARGET_NR_rt_sigprocmask
1019 static void
1020 print_rt_sigprocmask(const struct syscallname *name,
1021     abi_long arg0, abi_long arg1, abi_long arg2,
1022     abi_long arg3, abi_long arg4, abi_long arg5)
1023 {
1024     const char *how = "UNKNOWN";
1025     print_syscall_prologue(name);
1026     switch(arg0) {
1027     case TARGET_SIG_BLOCK: how = "SIG_BLOCK"; break;
1028     case TARGET_SIG_UNBLOCK: how = "SIG_UNBLOCK"; break;
1029     case TARGET_SIG_SETMASK: how = "SIG_SETMASK"; break;
1030     }
1031     gemu_log("%s,",how);
1032     print_pointer(arg1, 0);
1033     print_pointer(arg2, 1);
1034     print_syscall_epilogue(name);
1035 }
1036 #endif
1037 
1038 #ifdef TARGET_NR_mknod
1039 static void
1040 print_mknod(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     int hasdev = (arg1 & (S_IFCHR|S_IFBLK));
1045 
1046     print_syscall_prologue(name);
1047     print_string(arg0, 0);
1048     print_file_mode(arg1, (hasdev == 0));
1049     if (hasdev) {
1050         print_raw_param("makedev(%d", major(arg2), 0);
1051         print_raw_param("%d)", minor(arg2), 1);
1052     }
1053     print_syscall_epilogue(name);
1054 }
1055 #endif
1056 
1057 #ifdef TARGET_NR_mknodat
1058 static void
1059 print_mknodat(const struct syscallname *name,
1060     abi_long arg0, abi_long arg1, abi_long arg2,
1061     abi_long arg3, abi_long arg4, abi_long arg5)
1062 {
1063     int hasdev = (arg2 & (S_IFCHR|S_IFBLK));
1064 
1065     print_syscall_prologue(name);
1066     print_at_dirfd(arg0, 0);
1067     print_string(arg1, 0);
1068     print_file_mode(arg2, (hasdev == 0));
1069     if (hasdev) {
1070         print_raw_param("makedev(%d", major(arg3), 0);
1071         print_raw_param("%d)", minor(arg3), 1);
1072     }
1073     print_syscall_epilogue(name);
1074 }
1075 #endif
1076 
1077 #ifdef TARGET_NR_mq_open
1078 static void
1079 print_mq_open(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     int is_creat = (arg1 & TARGET_O_CREAT);
1084 
1085     print_syscall_prologue(name);
1086     print_string(arg0, 0);
1087     print_open_flags(arg1, (is_creat == 0));
1088     if (is_creat) {
1089         print_file_mode(arg2, 0);
1090         print_pointer(arg3, 1);
1091     }
1092     print_syscall_epilogue(name);
1093 }
1094 #endif
1095 
1096 #ifdef TARGET_NR_open
1097 static void
1098 print_open(const struct syscallname *name,
1099     abi_long arg0, abi_long arg1, abi_long arg2,
1100     abi_long arg3, abi_long arg4, abi_long arg5)
1101 {
1102     int is_creat = (arg1 & TARGET_O_CREAT);
1103 
1104     print_syscall_prologue(name);
1105     print_string(arg0, 0);
1106     print_open_flags(arg1, (is_creat == 0));
1107     if (is_creat)
1108         print_file_mode(arg2, 1);
1109     print_syscall_epilogue(name);
1110 }
1111 #endif
1112 
1113 #ifdef TARGET_NR_openat
1114 static void
1115 print_openat(const struct syscallname *name,
1116     abi_long arg0, abi_long arg1, abi_long arg2,
1117     abi_long arg3, abi_long arg4, abi_long arg5)
1118 {
1119     int is_creat = (arg2 & TARGET_O_CREAT);
1120 
1121     print_syscall_prologue(name);
1122     print_at_dirfd(arg0, 0);
1123     print_string(arg1, 0);
1124     print_open_flags(arg2, (is_creat == 0));
1125     if (is_creat)
1126         print_file_mode(arg3, 1);
1127     print_syscall_epilogue(name);
1128 }
1129 #endif
1130 
1131 #ifdef TARGET_NR_mq_unlink
1132 static void
1133 print_mq_unlink(const struct syscallname *name,
1134     abi_long arg0, abi_long arg1, abi_long arg2,
1135     abi_long arg3, abi_long arg4, abi_long arg5)
1136 {
1137     print_syscall_prologue(name);
1138     print_string(arg0, 1);
1139     print_syscall_epilogue(name);
1140 }
1141 #endif
1142 
1143 #if defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)
1144 static void
1145 print_fstatat64(const struct syscallname *name,
1146     abi_long arg0, abi_long arg1, abi_long arg2,
1147     abi_long arg3, abi_long arg4, abi_long arg5)
1148 {
1149     print_syscall_prologue(name);
1150     print_at_dirfd(arg0, 0);
1151     print_string(arg1, 0);
1152     print_pointer(arg2, 0);
1153     print_flags(at_file_flags, arg3, 1);
1154     print_syscall_epilogue(name);
1155 }
1156 #define print_newfstatat    print_fstatat64
1157 #endif
1158 
1159 #ifdef TARGET_NR_readlink
1160 static void
1161 print_readlink(const struct syscallname *name,
1162     abi_long arg0, abi_long arg1, abi_long arg2,
1163     abi_long arg3, abi_long arg4, abi_long arg5)
1164 {
1165     print_syscall_prologue(name);
1166     print_string(arg0, 0);
1167     print_pointer(arg1, 0);
1168     print_raw_param("%u", arg2, 1);
1169     print_syscall_epilogue(name);
1170 }
1171 #endif
1172 
1173 #ifdef TARGET_NR_readlinkat
1174 static void
1175 print_readlinkat(const struct syscallname *name,
1176     abi_long arg0, abi_long arg1, abi_long arg2,
1177     abi_long arg3, abi_long arg4, abi_long arg5)
1178 {
1179     print_syscall_prologue(name);
1180     print_at_dirfd(arg0, 0);
1181     print_string(arg1, 0);
1182     print_pointer(arg2, 0);
1183     print_raw_param("%u", arg3, 1);
1184     print_syscall_epilogue(name);
1185 }
1186 #endif
1187 
1188 #ifdef TARGET_NR_rename
1189 static void
1190 print_rename(const struct syscallname *name,
1191     abi_long arg0, abi_long arg1, abi_long arg2,
1192     abi_long arg3, abi_long arg4, abi_long arg5)
1193 {
1194     print_syscall_prologue(name);
1195     print_string(arg0, 0);
1196     print_string(arg1, 1);
1197     print_syscall_epilogue(name);
1198 }
1199 #endif
1200 
1201 #ifdef TARGET_NR_renameat
1202 static void
1203 print_renameat(const struct syscallname *name,
1204     abi_long arg0, abi_long arg1, abi_long arg2,
1205     abi_long arg3, abi_long arg4, abi_long arg5)
1206 {
1207     print_syscall_prologue(name);
1208     print_at_dirfd(arg0, 0);
1209     print_string(arg1, 0);
1210     print_at_dirfd(arg2, 0);
1211     print_string(arg3, 1);
1212     print_syscall_epilogue(name);
1213 }
1214 #endif
1215 
1216 #ifdef TARGET_NR_statfs
1217 static void
1218 print_statfs(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_string(arg0, 0);
1224     print_pointer(arg1, 1);
1225     print_syscall_epilogue(name);
1226 }
1227 #define print_statfs64  print_statfs
1228 #endif
1229 
1230 #ifdef TARGET_NR_symlink
1231 static void
1232 print_symlink(const struct syscallname *name,
1233     abi_long arg0, abi_long arg1, abi_long arg2,
1234     abi_long arg3, abi_long arg4, abi_long arg5)
1235 {
1236     print_syscall_prologue(name);
1237     print_string(arg0, 0);
1238     print_string(arg1, 1);
1239     print_syscall_epilogue(name);
1240 }
1241 #endif
1242 
1243 #ifdef TARGET_NR_symlinkat
1244 static void
1245 print_symlinkat(const struct syscallname *name,
1246     abi_long arg0, abi_long arg1, abi_long arg2,
1247     abi_long arg3, abi_long arg4, abi_long arg5)
1248 {
1249     print_syscall_prologue(name);
1250     print_string(arg0, 0);
1251     print_at_dirfd(arg1, 0);
1252     print_string(arg2, 1);
1253     print_syscall_epilogue(name);
1254 }
1255 #endif
1256 
1257 #ifdef TARGET_NR_mount
1258 static void
1259 print_mount(const struct syscallname *name,
1260     abi_long arg0, abi_long arg1, abi_long arg2,
1261     abi_long arg3, abi_long arg4, abi_long arg5)
1262 {
1263     print_syscall_prologue(name);
1264     print_string(arg0, 0);
1265     print_string(arg1, 0);
1266     print_string(arg2, 0);
1267     print_flags(mount_flags, arg3, 0);
1268     print_pointer(arg4, 1);
1269     print_syscall_epilogue(name);
1270 }
1271 #endif
1272 
1273 #ifdef TARGET_NR_umount
1274 static void
1275 print_umount(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_string(arg0, 1);
1281     print_syscall_epilogue(name);
1282 }
1283 #endif
1284 
1285 #ifdef TARGET_NR_umount2
1286 static void
1287 print_umount2(const struct syscallname *name,
1288     abi_long arg0, abi_long arg1, abi_long arg2,
1289     abi_long arg3, abi_long arg4, abi_long arg5)
1290 {
1291     print_syscall_prologue(name);
1292     print_string(arg0, 0);
1293     print_flags(umount2_flags, arg1, 1);
1294     print_syscall_epilogue(name);
1295 }
1296 #endif
1297 
1298 #ifdef TARGET_NR_unlink
1299 static void
1300 print_unlink(const struct syscallname *name,
1301     abi_long arg0, abi_long arg1, abi_long arg2,
1302     abi_long arg3, abi_long arg4, abi_long arg5)
1303 {
1304     print_syscall_prologue(name);
1305     print_string(arg0, 1);
1306     print_syscall_epilogue(name);
1307 }
1308 #endif
1309 
1310 #ifdef TARGET_NR_unlinkat
1311 static void
1312 print_unlinkat(const struct syscallname *name,
1313     abi_long arg0, abi_long arg1, abi_long arg2,
1314     abi_long arg3, abi_long arg4, abi_long arg5)
1315 {
1316     print_syscall_prologue(name);
1317     print_at_dirfd(arg0, 0);
1318     print_string(arg1, 0);
1319     print_flags(unlinkat_flags, arg2, 1);
1320     print_syscall_epilogue(name);
1321 }
1322 #endif
1323 
1324 #ifdef TARGET_NR_utime
1325 static void
1326 print_utime(const struct syscallname *name,
1327     abi_long arg0, abi_long arg1, abi_long arg2,
1328     abi_long arg3, abi_long arg4, abi_long arg5)
1329 {
1330     print_syscall_prologue(name);
1331     print_string(arg0, 0);
1332     print_pointer(arg1, 1);
1333     print_syscall_epilogue(name);
1334 }
1335 #endif
1336 
1337 #ifdef TARGET_NR_utimes
1338 static void
1339 print_utimes(const struct syscallname *name,
1340     abi_long arg0, abi_long arg1, abi_long arg2,
1341     abi_long arg3, abi_long arg4, abi_long arg5)
1342 {
1343     print_syscall_prologue(name);
1344     print_string(arg0, 0);
1345     print_pointer(arg1, 1);
1346     print_syscall_epilogue(name);
1347 }
1348 #endif
1349 
1350 #ifdef TARGET_NR_utimensat
1351 static void
1352 print_utimensat(const struct syscallname *name,
1353     abi_long arg0, abi_long arg1, abi_long arg2,
1354     abi_long arg3, abi_long arg4, abi_long arg5)
1355 {
1356     print_syscall_prologue(name);
1357     print_at_dirfd(arg0, 0);
1358     print_string(arg1, 0);
1359     print_pointer(arg2, 0);
1360     print_flags(at_file_flags, arg3, 1);
1361     print_syscall_epilogue(name);
1362 }
1363 #endif
1364 
1365 #if defined(TARGET_NR_mmap) || defined(TARGET_NR_mmap2)
1366 static void
1367 print_mmap(const struct syscallname *name,
1368     abi_long arg0, abi_long arg1, abi_long arg2,
1369     abi_long arg3, abi_long arg4, abi_long arg5)
1370 {
1371     print_syscall_prologue(name);
1372     print_pointer(arg0, 0);
1373     print_raw_param("%d", arg1, 0);
1374     print_flags(mmap_prot_flags, arg2, 0);
1375     print_flags(mmap_flags, arg3, 0);
1376     print_raw_param("%d", arg4, 0);
1377     print_raw_param("%#x", arg5, 1);
1378     print_syscall_epilogue(name);
1379 }
1380 #define print_mmap2     print_mmap
1381 #endif
1382 
1383 #ifdef TARGET_NR_mprotect
1384 static void
1385 print_mprotect(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_pointer(arg0, 0);
1391     print_raw_param("%d", arg1, 0);
1392     print_flags(mmap_prot_flags, arg2, 1);
1393     print_syscall_epilogue(name);
1394 }
1395 #endif
1396 
1397 #ifdef TARGET_NR_munmap
1398 static void
1399 print_munmap(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_pointer(arg0, 0);
1405     print_raw_param("%d", arg1, 1);
1406     print_syscall_epilogue(name);
1407 }
1408 #endif
1409 
1410 #ifdef TARGET_NR_futex
1411 static void print_futex_op(abi_long tflag, int last)
1412 {
1413 #define print_op(val) \
1414 if( cmd == val ) { \
1415     gemu_log(#val); \
1416     return; \
1417 }
1418 
1419     int cmd = (int)tflag;
1420 #ifdef FUTEX_PRIVATE_FLAG
1421     if (cmd & FUTEX_PRIVATE_FLAG) {
1422         gemu_log("FUTEX_PRIVATE_FLAG|");
1423         cmd &= ~FUTEX_PRIVATE_FLAG;
1424     }
1425 #endif
1426     print_op(FUTEX_WAIT)
1427     print_op(FUTEX_WAKE)
1428     print_op(FUTEX_FD)
1429     print_op(FUTEX_REQUEUE)
1430     print_op(FUTEX_CMP_REQUEUE)
1431     print_op(FUTEX_WAKE_OP)
1432     print_op(FUTEX_LOCK_PI)
1433     print_op(FUTEX_UNLOCK_PI)
1434     print_op(FUTEX_TRYLOCK_PI)
1435 #ifdef FUTEX_WAIT_BITSET
1436     print_op(FUTEX_WAIT_BITSET)
1437 #endif
1438 #ifdef FUTEX_WAKE_BITSET
1439     print_op(FUTEX_WAKE_BITSET)
1440 #endif
1441     /* unknown values */
1442     gemu_log("%d",cmd);
1443 }
1444 
1445 static void
1446 print_futex(const struct syscallname *name,
1447     abi_long arg0, abi_long arg1, abi_long arg2,
1448     abi_long arg3, abi_long arg4, abi_long arg5)
1449 {
1450     print_syscall_prologue(name);
1451     print_pointer(arg0, 0);
1452     print_futex_op(arg1, 0);
1453     print_raw_param(",%d", arg2, 0);
1454     print_pointer(arg3, 0); /* struct timespec */
1455     print_pointer(arg4, 0);
1456     print_raw_param("%d", arg4, 1);
1457     print_syscall_epilogue(name);
1458 }
1459 #endif
1460 
1461 #ifdef TARGET_NR_kill
1462 static void
1463 print_kill(const struct syscallname *name,
1464     abi_long arg0, abi_long arg1, abi_long arg2,
1465     abi_long arg3, abi_long arg4, abi_long arg5)
1466 {
1467     print_syscall_prologue(name);
1468     print_raw_param("%d", arg0, 0);
1469     print_signal(arg1, 1);
1470     print_syscall_epilogue(name);
1471 }
1472 #endif
1473 
1474 /*
1475  * An array of all of the syscalls we know about
1476  */
1477 
1478 static const struct syscallname scnames[] = {
1479 #include "strace.list"
1480 };
1481 
1482 static int nsyscalls = ARRAY_SIZE(scnames);
1483 
1484 /*
1485  * The public interface to this module.
1486  */
1487 void
1488 print_syscall(int num,
1489               abi_long arg1, abi_long arg2, abi_long arg3,
1490               abi_long arg4, abi_long arg5, abi_long arg6)
1491 {
1492     int i;
1493     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 ")";
1494 
1495     gemu_log("%d ", getpid() );
1496 
1497     for(i=0;i<nsyscalls;i++)
1498         if( scnames[i].nr == num ) {
1499             if( scnames[i].call != NULL ) {
1500                 scnames[i].call(&scnames[i],arg1,arg2,arg3,arg4,arg5,arg6);
1501             } else {
1502                 /* XXX: this format system is broken because it uses
1503                    host types and host pointers for strings */
1504                 if( scnames[i].format != NULL )
1505                     format = scnames[i].format;
1506                 gemu_log(format,scnames[i].name, arg1,arg2,arg3,arg4,arg5,arg6);
1507             }
1508             return;
1509         }
1510     gemu_log("Unknown syscall %d\n", num);
1511 }
1512 
1513 
1514 void
1515 print_syscall_ret(int num, abi_long ret)
1516 {
1517     int i;
1518 
1519     for(i=0;i<nsyscalls;i++)
1520         if( scnames[i].nr == num ) {
1521             if( scnames[i].result != NULL ) {
1522                 scnames[i].result(&scnames[i],ret);
1523             } else {
1524                 if( ret < 0 ) {
1525                     gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n", -ret, target_strerror(-ret));
1526                 } else {
1527                     gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
1528                 }
1529             }
1530             break;
1531         }
1532 }
1533