xref: /openbmc/qemu/linux-user/strace.c (revision 80adf54e)
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 <arpa/inet.h>
9 #include <netinet/tcp.h>
10 #include <linux/if_packet.h>
11 #include <sched.h>
12 #include "qemu.h"
13 
14 int do_strace=0;
15 
16 struct syscallname {
17     int nr;
18     const char *name;
19     const char *format;
20     void (*call)(const struct syscallname *,
21                  abi_long, abi_long, abi_long,
22                  abi_long, abi_long, abi_long);
23     void (*result)(const struct syscallname *, abi_long);
24 };
25 
26 #ifdef __GNUC__
27 /*
28  * It is possible that target doesn't have syscall that uses
29  * following flags but we don't want the compiler to warn
30  * us about them being unused.  Same applies to utility print
31  * functions.  It is ok to keep them while not used.
32  */
33 #define UNUSED __attribute__ ((unused))
34 #else
35 #define UNUSED
36 #endif
37 
38 /*
39  * Structure used to translate flag values into strings.  This is
40  * similar that is in the actual strace tool.
41  */
42 struct flags {
43     abi_long    f_value;  /* flag */
44     const char  *f_string; /* stringified flag */
45 };
46 
47 /* common flags for all architectures */
48 #define FLAG_GENERIC(name) { name, #name }
49 /* target specific flags (syscall_defs.h has TARGET_<flag>) */
50 #define FLAG_TARGET(name)  { TARGET_ ## name, #name }
51 /* end of flags array */
52 #define FLAG_END           { 0, NULL }
53 
54 UNUSED static const char *get_comma(int);
55 UNUSED static void print_pointer(abi_long, int);
56 UNUSED static void print_flags(const struct flags *, abi_long, int);
57 UNUSED static void print_at_dirfd(abi_long, int);
58 UNUSED static void print_file_mode(abi_long, int);
59 UNUSED static void print_open_flags(abi_long, int);
60 UNUSED static void print_syscall_prologue(const struct syscallname *);
61 UNUSED static void print_syscall_epilogue(const struct syscallname *);
62 UNUSED static void print_string(abi_long, int);
63 UNUSED static void print_buf(abi_long addr, abi_long len, int last);
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 UNUSED static void print_sockaddr(abi_ulong addr, abi_long addrlen);
69 UNUSED static void print_socket_domain(int domain);
70 UNUSED static void print_socket_type(int type);
71 UNUSED static void print_socket_protocol(int domain, int type, int protocol);
72 
73 /*
74  * Utility functions
75  */
76 static void
77 print_ipc_cmd(int cmd)
78 {
79 #define output_cmd(val) \
80 if( cmd == val ) { \
81     gemu_log(#val); \
82     return; \
83 }
84 
85     cmd &= 0xff;
86 
87     /* General IPC commands */
88     output_cmd( IPC_RMID );
89     output_cmd( IPC_SET );
90     output_cmd( IPC_STAT );
91     output_cmd( IPC_INFO );
92     /* msgctl() commands */
93     output_cmd( MSG_STAT );
94     output_cmd( MSG_INFO );
95     /* shmctl() commands */
96     output_cmd( SHM_LOCK );
97     output_cmd( SHM_UNLOCK );
98     output_cmd( SHM_STAT );
99     output_cmd( SHM_INFO );
100     /* semctl() commands */
101     output_cmd( GETPID );
102     output_cmd( GETVAL );
103     output_cmd( GETALL );
104     output_cmd( GETNCNT );
105     output_cmd( GETZCNT );
106     output_cmd( SETVAL );
107     output_cmd( SETALL );
108     output_cmd( SEM_STAT );
109     output_cmd( SEM_INFO );
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     output_cmd( IPC_RMID );
118     output_cmd( IPC_RMID );
119 
120     /* Some value we don't recognize */
121     gemu_log("%d",cmd);
122 }
123 
124 static void
125 print_signal(abi_ulong arg, int last)
126 {
127     const char *signal_name = NULL;
128     switch(arg) {
129     case TARGET_SIGHUP: signal_name = "SIGHUP"; break;
130     case TARGET_SIGINT: signal_name = "SIGINT"; break;
131     case TARGET_SIGQUIT: signal_name = "SIGQUIT"; break;
132     case TARGET_SIGILL: signal_name = "SIGILL"; break;
133     case TARGET_SIGABRT: signal_name = "SIGABRT"; break;
134     case TARGET_SIGFPE: signal_name = "SIGFPE"; break;
135     case TARGET_SIGKILL: signal_name = "SIGKILL"; break;
136     case TARGET_SIGSEGV: signal_name = "SIGSEGV"; break;
137     case TARGET_SIGPIPE: signal_name = "SIGPIPE"; break;
138     case TARGET_SIGALRM: signal_name = "SIGALRM"; break;
139     case TARGET_SIGTERM: signal_name = "SIGTERM"; break;
140     case TARGET_SIGUSR1: signal_name = "SIGUSR1"; break;
141     case TARGET_SIGUSR2: signal_name = "SIGUSR2"; break;
142     case TARGET_SIGCHLD: signal_name = "SIGCHLD"; break;
143     case TARGET_SIGCONT: signal_name = "SIGCONT"; break;
144     case TARGET_SIGSTOP: signal_name = "SIGSTOP"; break;
145     case TARGET_SIGTTIN: signal_name = "SIGTTIN"; break;
146     case TARGET_SIGTTOU: signal_name = "SIGTTOU"; break;
147     }
148     if (signal_name == NULL) {
149         print_raw_param("%ld", arg, last);
150         return;
151     }
152     gemu_log("%s%s", signal_name, get_comma(last));
153 }
154 
155 static void print_si_code(int arg)
156 {
157     const char *codename = NULL;
158 
159     switch (arg) {
160     case SI_USER:
161         codename = "SI_USER";
162         break;
163     case SI_KERNEL:
164         codename = "SI_KERNEL";
165         break;
166     case SI_QUEUE:
167         codename = "SI_QUEUE";
168         break;
169     case SI_TIMER:
170         codename = "SI_TIMER";
171         break;
172     case SI_MESGQ:
173         codename = "SI_MESGQ";
174         break;
175     case SI_ASYNCIO:
176         codename = "SI_ASYNCIO";
177         break;
178     case SI_SIGIO:
179         codename = "SI_SIGIO";
180         break;
181     case SI_TKILL:
182         codename = "SI_TKILL";
183         break;
184     default:
185         gemu_log("%d", arg);
186         return;
187     }
188     gemu_log("%s", codename);
189 }
190 
191 static void get_target_siginfo(target_siginfo_t *tinfo,
192                                 const target_siginfo_t *info)
193 {
194     abi_ulong sival_ptr;
195 
196     int sig;
197     int si_errno;
198     int si_code;
199     int si_type;
200 
201     __get_user(sig, &info->si_signo);
202     __get_user(si_errno, &tinfo->si_errno);
203     __get_user(si_code, &info->si_code);
204 
205     tinfo->si_signo = sig;
206     tinfo->si_errno = si_errno;
207     tinfo->si_code = si_code;
208 
209     /* Ensure we don't leak random junk to the guest later */
210     memset(tinfo->_sifields._pad, 0, sizeof(tinfo->_sifields._pad));
211 
212     /* This is awkward, because we have to use a combination of
213      * the si_code and si_signo to figure out which of the union's
214      * members are valid. (Within the host kernel it is always possible
215      * to tell, but the kernel carefully avoids giving userspace the
216      * high 16 bits of si_code, so we don't have the information to
217      * do this the easy way...) We therefore make our best guess,
218      * bearing in mind that a guest can spoof most of the si_codes
219      * via rt_sigqueueinfo() if it likes.
220      *
221      * Once we have made our guess, we record it in the top 16 bits of
222      * the si_code, so that print_siginfo() later can use it.
223      * print_siginfo() will strip these top bits out before printing
224      * the si_code.
225      */
226 
227     switch (si_code) {
228     case SI_USER:
229     case SI_TKILL:
230     case SI_KERNEL:
231         /* Sent via kill(), tkill() or tgkill(), or direct from the kernel.
232          * These are the only unspoofable si_code values.
233          */
234         __get_user(tinfo->_sifields._kill._pid, &info->_sifields._kill._pid);
235         __get_user(tinfo->_sifields._kill._uid, &info->_sifields._kill._uid);
236         si_type = QEMU_SI_KILL;
237         break;
238     default:
239         /* Everything else is spoofable. Make best guess based on signal */
240         switch (sig) {
241         case TARGET_SIGCHLD:
242             __get_user(tinfo->_sifields._sigchld._pid,
243                        &info->_sifields._sigchld._pid);
244             __get_user(tinfo->_sifields._sigchld._uid,
245                        &info->_sifields._sigchld._uid);
246             __get_user(tinfo->_sifields._sigchld._status,
247                        &info->_sifields._sigchld._status);
248             __get_user(tinfo->_sifields._sigchld._utime,
249                        &info->_sifields._sigchld._utime);
250             __get_user(tinfo->_sifields._sigchld._stime,
251                        &info->_sifields._sigchld._stime);
252             si_type = QEMU_SI_CHLD;
253             break;
254         case TARGET_SIGIO:
255             __get_user(tinfo->_sifields._sigpoll._band,
256                        &info->_sifields._sigpoll._band);
257             __get_user(tinfo->_sifields._sigpoll._fd,
258                        &info->_sifields._sigpoll._fd);
259             si_type = QEMU_SI_POLL;
260             break;
261         default:
262             /* Assume a sigqueue()/mq_notify()/rt_sigqueueinfo() source. */
263             __get_user(tinfo->_sifields._rt._pid, &info->_sifields._rt._pid);
264             __get_user(tinfo->_sifields._rt._uid, &info->_sifields._rt._uid);
265             /* XXX: potential problem if 64 bit */
266             __get_user(sival_ptr, &info->_sifields._rt._sigval.sival_ptr);
267             tinfo->_sifields._rt._sigval.sival_ptr = sival_ptr;
268 
269             si_type = QEMU_SI_RT;
270             break;
271         }
272         break;
273     }
274 
275     tinfo->si_code = deposit32(si_code, 16, 16, si_type);
276 }
277 
278 static void print_siginfo(const target_siginfo_t *tinfo)
279 {
280     /* Print a target_siginfo_t in the format desired for printing
281      * signals being taken. We assume the target_siginfo_t is in the
282      * internal form where the top 16 bits of si_code indicate which
283      * part of the union is valid, rather than in the guest-visible
284      * form where the bottom 16 bits are sign-extended into the top 16.
285      */
286     int si_type = extract32(tinfo->si_code, 16, 16);
287     int si_code = sextract32(tinfo->si_code, 0, 16);
288 
289     gemu_log("{si_signo=");
290     print_signal(tinfo->si_signo, 1);
291     gemu_log(", si_code=");
292     print_si_code(si_code);
293 
294     switch (si_type) {
295     case QEMU_SI_KILL:
296         gemu_log(", si_pid=%u, si_uid=%u",
297                  (unsigned int)tinfo->_sifields._kill._pid,
298                  (unsigned int)tinfo->_sifields._kill._uid);
299         break;
300     case QEMU_SI_TIMER:
301         gemu_log(", si_timer1=%u, si_timer2=%u",
302                  tinfo->_sifields._timer._timer1,
303                  tinfo->_sifields._timer._timer2);
304         break;
305     case QEMU_SI_POLL:
306         gemu_log(", si_band=%d, si_fd=%d",
307                  tinfo->_sifields._sigpoll._band,
308                  tinfo->_sifields._sigpoll._fd);
309         break;
310     case QEMU_SI_FAULT:
311         gemu_log(", si_addr=");
312         print_pointer(tinfo->_sifields._sigfault._addr, 1);
313         break;
314     case QEMU_SI_CHLD:
315         gemu_log(", si_pid=%u, si_uid=%u, si_status=%d"
316                  ", si_utime=" TARGET_ABI_FMT_ld
317                  ", si_stime=" TARGET_ABI_FMT_ld,
318                  (unsigned int)(tinfo->_sifields._sigchld._pid),
319                  (unsigned int)(tinfo->_sifields._sigchld._uid),
320                  tinfo->_sifields._sigchld._status,
321                  tinfo->_sifields._sigchld._utime,
322                  tinfo->_sifields._sigchld._stime);
323         break;
324     case QEMU_SI_RT:
325         gemu_log(", si_pid=%u, si_uid=%u, si_sigval=" TARGET_ABI_FMT_ld,
326                  (unsigned int)tinfo->_sifields._rt._pid,
327                  (unsigned int)tinfo->_sifields._rt._uid,
328                  tinfo->_sifields._rt._sigval.sival_ptr);
329         break;
330     default:
331         g_assert_not_reached();
332     }
333     gemu_log("}");
334 }
335 
336 static void
337 print_sockaddr(abi_ulong addr, abi_long addrlen)
338 {
339     struct target_sockaddr *sa;
340     int i;
341     int sa_family;
342 
343     sa = lock_user(VERIFY_READ, addr, addrlen, 1);
344     if (sa) {
345         sa_family = tswap16(sa->sa_family);
346         switch (sa_family) {
347         case AF_UNIX: {
348             struct target_sockaddr_un *un = (struct target_sockaddr_un *)sa;
349             int i;
350             gemu_log("{sun_family=AF_UNIX,sun_path=\"");
351             for (i = 0; i < addrlen -
352                             offsetof(struct target_sockaddr_un, sun_path) &&
353                  un->sun_path[i]; i++) {
354                 gemu_log("%c", un->sun_path[i]);
355             }
356             gemu_log("\"}");
357             break;
358         }
359         case AF_INET: {
360             struct target_sockaddr_in *in = (struct target_sockaddr_in *)sa;
361             uint8_t *c = (uint8_t *)&in->sin_addr.s_addr;
362             gemu_log("{sin_family=AF_INET,sin_port=htons(%d),",
363                      ntohs(in->sin_port));
364             gemu_log("sin_addr=inet_addr(\"%d.%d.%d.%d\")",
365                      c[0], c[1], c[2], c[3]);
366             gemu_log("}");
367             break;
368         }
369         case AF_PACKET: {
370             struct target_sockaddr_ll *ll = (struct target_sockaddr_ll *)sa;
371             uint8_t *c = (uint8_t *)&ll->sll_addr;
372             gemu_log("{sll_family=AF_PACKET,"
373                      "sll_protocol=htons(0x%04x),if%d,pkttype=",
374                      ntohs(ll->sll_protocol), ll->sll_ifindex);
375             switch (ll->sll_pkttype) {
376             case PACKET_HOST:
377                 gemu_log("PACKET_HOST");
378                 break;
379             case PACKET_BROADCAST:
380                 gemu_log("PACKET_BROADCAST");
381                 break;
382             case PACKET_MULTICAST:
383                 gemu_log("PACKET_MULTICAST");
384                 break;
385             case PACKET_OTHERHOST:
386                 gemu_log("PACKET_OTHERHOST");
387                 break;
388             case PACKET_OUTGOING:
389                 gemu_log("PACKET_OUTGOING");
390                 break;
391             default:
392                 gemu_log("%d", ll->sll_pkttype);
393                 break;
394             }
395             gemu_log(",sll_addr=%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
396                      c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7]);
397             gemu_log("}");
398             break;
399         }
400         default:
401             gemu_log("{sa_family=%d, sa_data={", sa->sa_family);
402             for (i = 0; i < 13; i++) {
403                 gemu_log("%02x, ", sa->sa_data[i]);
404             }
405             gemu_log("%02x}", sa->sa_data[i]);
406             gemu_log("}");
407             break;
408         }
409         unlock_user(sa, addr, 0);
410     } else {
411         print_raw_param("0x"TARGET_ABI_FMT_lx, addr, 0);
412     }
413     gemu_log(", "TARGET_ABI_FMT_ld, addrlen);
414 }
415 
416 static void
417 print_socket_domain(int domain)
418 {
419     switch (domain) {
420     case PF_UNIX:
421         gemu_log("PF_UNIX");
422         break;
423     case PF_INET:
424         gemu_log("PF_INET");
425         break;
426     case PF_PACKET:
427         gemu_log("PF_PACKET");
428         break;
429     default:
430         gemu_log("%d", domain);
431         break;
432     }
433 }
434 
435 static void
436 print_socket_type(int type)
437 {
438     switch (type) {
439     case TARGET_SOCK_DGRAM:
440         gemu_log("SOCK_DGRAM");
441         break;
442     case TARGET_SOCK_STREAM:
443         gemu_log("SOCK_STREAM");
444         break;
445     case TARGET_SOCK_RAW:
446         gemu_log("SOCK_RAW");
447         break;
448     case TARGET_SOCK_RDM:
449         gemu_log("SOCK_RDM");
450         break;
451     case TARGET_SOCK_SEQPACKET:
452         gemu_log("SOCK_SEQPACKET");
453         break;
454     case TARGET_SOCK_PACKET:
455         gemu_log("SOCK_PACKET");
456         break;
457     }
458 }
459 
460 static void
461 print_socket_protocol(int domain, int type, int protocol)
462 {
463     if (domain == AF_PACKET ||
464         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
465         switch (protocol) {
466         case 0x0003:
467             gemu_log("ETH_P_ALL");
468             break;
469         default:
470             gemu_log("%d", protocol);
471         }
472         return;
473     }
474 
475     switch (protocol) {
476     case IPPROTO_IP:
477         gemu_log("IPPROTO_IP");
478         break;
479     case IPPROTO_TCP:
480         gemu_log("IPPROTO_TCP");
481         break;
482     case IPPROTO_UDP:
483         gemu_log("IPPROTO_UDP");
484         break;
485     case IPPROTO_RAW:
486         gemu_log("IPPROTO_RAW");
487         break;
488     default:
489         gemu_log("%d", protocol);
490         break;
491     }
492 }
493 
494 
495 #ifdef TARGET_NR__newselect
496 static void
497 print_fdset(int n, abi_ulong target_fds_addr)
498 {
499     int i;
500 
501     gemu_log("[");
502     if( target_fds_addr ) {
503         abi_long *target_fds;
504 
505         target_fds = lock_user(VERIFY_READ,
506                                target_fds_addr,
507                                sizeof(*target_fds)*(n / TARGET_ABI_BITS + 1),
508                                1);
509 
510         if (!target_fds)
511             return;
512 
513         for (i=n; i>=0; i--) {
514             if ((tswapal(target_fds[i / TARGET_ABI_BITS]) >> (i & (TARGET_ABI_BITS - 1))) & 1)
515                 gemu_log("%d,", i );
516             }
517         unlock_user(target_fds, target_fds_addr, 0);
518     }
519     gemu_log("]");
520 }
521 #endif
522 
523 #ifdef TARGET_NR_clock_adjtime
524 /* IDs of the various system clocks */
525 #define TARGET_CLOCK_REALTIME              0
526 #define TARGET_CLOCK_MONOTONIC             1
527 #define TARGET_CLOCK_PROCESS_CPUTIME_ID    2
528 #define TARGET_CLOCK_THREAD_CPUTIME_ID     3
529 #define TARGET_CLOCK_MONOTONIC_RAW         4
530 #define TARGET_CLOCK_REALTIME_COARSE       5
531 #define TARGET_CLOCK_MONOTONIC_COARSE      6
532 #define TARGET_CLOCK_BOOTTIME              7
533 #define TARGET_CLOCK_REALTIME_ALARM        8
534 #define TARGET_CLOCK_BOOTTIME_ALARM        9
535 #define TARGET_CLOCK_SGI_CYCLE             10
536 #define TARGET_CLOCK_TAI                   11
537 
538 static void
539 print_clockid(int clockid, int last)
540 {
541     switch (clockid) {
542     case TARGET_CLOCK_REALTIME:
543         gemu_log("CLOCK_REALTIME");
544         break;
545     case TARGET_CLOCK_MONOTONIC:
546         gemu_log("CLOCK_MONOTONIC");
547         break;
548     case TARGET_CLOCK_PROCESS_CPUTIME_ID:
549         gemu_log("CLOCK_PROCESS_CPUTIME_ID");
550         break;
551     case TARGET_CLOCK_THREAD_CPUTIME_ID:
552         gemu_log("CLOCK_THREAD_CPUTIME_ID");
553         break;
554     case TARGET_CLOCK_MONOTONIC_RAW:
555         gemu_log("CLOCK_MONOTONIC_RAW");
556         break;
557     case TARGET_CLOCK_REALTIME_COARSE:
558         gemu_log("CLOCK_REALTIME_COARSE");
559         break;
560     case TARGET_CLOCK_MONOTONIC_COARSE:
561         gemu_log("CLOCK_MONOTONIC_COARSE");
562         break;
563     case TARGET_CLOCK_BOOTTIME:
564         gemu_log("CLOCK_BOOTTIME");
565         break;
566     case TARGET_CLOCK_REALTIME_ALARM:
567         gemu_log("CLOCK_REALTIME_ALARM");
568         break;
569     case TARGET_CLOCK_BOOTTIME_ALARM:
570         gemu_log("CLOCK_BOOTTIME_ALARM");
571         break;
572     case TARGET_CLOCK_SGI_CYCLE:
573         gemu_log("CLOCK_SGI_CYCLE");
574         break;
575     case TARGET_CLOCK_TAI:
576         gemu_log("CLOCK_TAI");
577         break;
578     default:
579         gemu_log("%d", clockid);
580         break;
581     }
582     gemu_log("%s", get_comma(last));
583 }
584 #endif
585 
586 /*
587  * Sysycall specific output functions
588  */
589 
590 /* select */
591 #ifdef TARGET_NR__newselect
592 static long newselect_arg1 = 0;
593 static long newselect_arg2 = 0;
594 static long newselect_arg3 = 0;
595 static long newselect_arg4 = 0;
596 static long newselect_arg5 = 0;
597 
598 static void
599 print_newselect(const struct syscallname *name,
600                 abi_long arg1, abi_long arg2, abi_long arg3,
601                 abi_long arg4, abi_long arg5, abi_long arg6)
602 {
603     gemu_log("%s(" TARGET_ABI_FMT_ld ",", name->name, arg1);
604     print_fdset(arg1, arg2);
605     gemu_log(",");
606     print_fdset(arg1, arg3);
607     gemu_log(",");
608     print_fdset(arg1, arg4);
609     gemu_log(",");
610     print_timeval(arg5, 1);
611     gemu_log(")");
612 
613     /* save for use in the return output function below */
614     newselect_arg1=arg1;
615     newselect_arg2=arg2;
616     newselect_arg3=arg3;
617     newselect_arg4=arg4;
618     newselect_arg5=arg5;
619 }
620 #endif
621 
622 #ifdef TARGET_NR_semctl
623 static void
624 print_semctl(const struct syscallname *name,
625              abi_long arg1, abi_long arg2, abi_long arg3,
626              abi_long arg4, abi_long arg5, abi_long arg6)
627 {
628     gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", name->name, arg1, arg2);
629     print_ipc_cmd(arg3);
630     gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
631 }
632 #endif
633 
634 static void
635 print_execve(const struct syscallname *name,
636              abi_long arg1, abi_long arg2, abi_long arg3,
637              abi_long arg4, abi_long arg5, abi_long arg6)
638 {
639     abi_ulong arg_ptr_addr;
640     char *s;
641 
642     if (!(s = lock_user_string(arg1)))
643         return;
644     gemu_log("%s(\"%s\",{", name->name, s);
645     unlock_user(s, arg1, 0);
646 
647     for (arg_ptr_addr = arg2; ; arg_ptr_addr += sizeof(abi_ulong)) {
648         abi_ulong *arg_ptr, arg_addr;
649 
650 	arg_ptr = lock_user(VERIFY_READ, arg_ptr_addr, sizeof(abi_ulong), 1);
651         if (!arg_ptr)
652             return;
653     arg_addr = tswapal(*arg_ptr);
654 	unlock_user(arg_ptr, arg_ptr_addr, 0);
655         if (!arg_addr)
656             break;
657         if ((s = lock_user_string(arg_addr))) {
658             gemu_log("\"%s\",", s);
659             unlock_user(s, arg_addr, 0);
660         }
661     }
662 
663     gemu_log("NULL})");
664 }
665 
666 #ifdef TARGET_NR_ipc
667 static void
668 print_ipc(const struct syscallname *name,
669           abi_long arg1, abi_long arg2, abi_long arg3,
670           abi_long arg4, abi_long arg5, abi_long arg6)
671 {
672     switch(arg1) {
673     case IPCOP_semctl:
674         gemu_log("semctl(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", arg1, arg2);
675         print_ipc_cmd(arg3);
676         gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
677         break;
678     default:
679         gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ")",
680                  name->name, arg1, arg2, arg3, arg4);
681     }
682 }
683 #endif
684 
685 /*
686  * Variants for the return value output function
687  */
688 
689 static void
690 print_syscall_ret_addr(const struct syscallname *name, abi_long ret)
691 {
692     const char *errstr = NULL;
693 
694     if (ret < 0) {
695         errstr = target_strerror(-ret);
696     }
697     if (errstr) {
698         gemu_log(" = -1 errno=%d (%s)\n", (int)-ret, errstr);
699     } else {
700         gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
701     }
702 }
703 
704 #if 0 /* currently unused */
705 static void
706 print_syscall_ret_raw(struct syscallname *name, abi_long ret)
707 {
708         gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
709 }
710 #endif
711 
712 #ifdef TARGET_NR__newselect
713 static void
714 print_syscall_ret_newselect(const struct syscallname *name, abi_long ret)
715 {
716     gemu_log(" = 0x" TARGET_ABI_FMT_lx " (", ret);
717     print_fdset(newselect_arg1,newselect_arg2);
718     gemu_log(",");
719     print_fdset(newselect_arg1,newselect_arg3);
720     gemu_log(",");
721     print_fdset(newselect_arg1,newselect_arg4);
722     gemu_log(",");
723     print_timeval(newselect_arg5, 1);
724     gemu_log(")\n");
725 }
726 #endif
727 
728 /* special meanings of adjtimex()' non-negative return values */
729 #define TARGET_TIME_OK       0   /* clock synchronized, no leap second */
730 #define TARGET_TIME_INS      1   /* insert leap second */
731 #define TARGET_TIME_DEL      2   /* delete leap second */
732 #define TARGET_TIME_OOP      3   /* leap second in progress */
733 #define TARGET_TIME_WAIT     4   /* leap second has occurred */
734 #define TARGET_TIME_ERROR    5   /* clock not synchronized */
735 static void
736 print_syscall_ret_adjtimex(const struct syscallname *name, abi_long ret)
737 {
738     const char *errstr = NULL;
739 
740     gemu_log(" = ");
741     if (ret < 0) {
742         gemu_log("-1 errno=%d", errno);
743         errstr = target_strerror(-ret);
744         if (errstr) {
745             gemu_log(" (%s)", errstr);
746         }
747     } else {
748         gemu_log(TARGET_ABI_FMT_ld, ret);
749         switch (ret) {
750         case TARGET_TIME_OK:
751             gemu_log(" TIME_OK (clock synchronized, no leap second)");
752             break;
753         case TARGET_TIME_INS:
754             gemu_log(" TIME_INS (insert leap second)");
755             break;
756         case TARGET_TIME_DEL:
757             gemu_log(" TIME_DEL (delete leap second)");
758             break;
759         case TARGET_TIME_OOP:
760             gemu_log(" TIME_OOP (leap second in progress)");
761             break;
762         case TARGET_TIME_WAIT:
763             gemu_log(" TIME_WAIT (leap second has occurred)");
764             break;
765         case TARGET_TIME_ERROR:
766             gemu_log(" TIME_ERROR (clock not synchronized)");
767             break;
768         }
769     }
770 
771     gemu_log("\n");
772 }
773 
774 UNUSED static struct flags access_flags[] = {
775     FLAG_GENERIC(F_OK),
776     FLAG_GENERIC(R_OK),
777     FLAG_GENERIC(W_OK),
778     FLAG_GENERIC(X_OK),
779     FLAG_END,
780 };
781 
782 UNUSED static struct flags at_file_flags[] = {
783 #ifdef AT_EACCESS
784     FLAG_GENERIC(AT_EACCESS),
785 #endif
786 #ifdef AT_SYMLINK_NOFOLLOW
787     FLAG_GENERIC(AT_SYMLINK_NOFOLLOW),
788 #endif
789     FLAG_END,
790 };
791 
792 UNUSED static struct flags unlinkat_flags[] = {
793 #ifdef AT_REMOVEDIR
794     FLAG_GENERIC(AT_REMOVEDIR),
795 #endif
796     FLAG_END,
797 };
798 
799 UNUSED static struct flags mode_flags[] = {
800     FLAG_GENERIC(S_IFSOCK),
801     FLAG_GENERIC(S_IFLNK),
802     FLAG_GENERIC(S_IFREG),
803     FLAG_GENERIC(S_IFBLK),
804     FLAG_GENERIC(S_IFDIR),
805     FLAG_GENERIC(S_IFCHR),
806     FLAG_GENERIC(S_IFIFO),
807     FLAG_END,
808 };
809 
810 UNUSED static struct flags open_access_flags[] = {
811     FLAG_TARGET(O_RDONLY),
812     FLAG_TARGET(O_WRONLY),
813     FLAG_TARGET(O_RDWR),
814     FLAG_END,
815 };
816 
817 UNUSED static struct flags open_flags[] = {
818     FLAG_TARGET(O_APPEND),
819     FLAG_TARGET(O_CREAT),
820     FLAG_TARGET(O_DIRECTORY),
821     FLAG_TARGET(O_EXCL),
822     FLAG_TARGET(O_LARGEFILE),
823     FLAG_TARGET(O_NOCTTY),
824     FLAG_TARGET(O_NOFOLLOW),
825     FLAG_TARGET(O_NONBLOCK),      /* also O_NDELAY */
826     FLAG_TARGET(O_DSYNC),
827     FLAG_TARGET(__O_SYNC),
828     FLAG_TARGET(O_TRUNC),
829 #ifdef O_DIRECT
830     FLAG_TARGET(O_DIRECT),
831 #endif
832 #ifdef O_NOATIME
833     FLAG_TARGET(O_NOATIME),
834 #endif
835 #ifdef O_CLOEXEC
836     FLAG_TARGET(O_CLOEXEC),
837 #endif
838 #ifdef O_PATH
839     FLAG_TARGET(O_PATH),
840 #endif
841     FLAG_END,
842 };
843 
844 UNUSED static struct flags mount_flags[] = {
845 #ifdef MS_BIND
846     FLAG_GENERIC(MS_BIND),
847 #endif
848 #ifdef MS_DIRSYNC
849     FLAG_GENERIC(MS_DIRSYNC),
850 #endif
851     FLAG_GENERIC(MS_MANDLOCK),
852 #ifdef MS_MOVE
853     FLAG_GENERIC(MS_MOVE),
854 #endif
855     FLAG_GENERIC(MS_NOATIME),
856     FLAG_GENERIC(MS_NODEV),
857     FLAG_GENERIC(MS_NODIRATIME),
858     FLAG_GENERIC(MS_NOEXEC),
859     FLAG_GENERIC(MS_NOSUID),
860     FLAG_GENERIC(MS_RDONLY),
861 #ifdef MS_RELATIME
862     FLAG_GENERIC(MS_RELATIME),
863 #endif
864     FLAG_GENERIC(MS_REMOUNT),
865     FLAG_GENERIC(MS_SYNCHRONOUS),
866     FLAG_END,
867 };
868 
869 UNUSED static struct flags umount2_flags[] = {
870 #ifdef MNT_FORCE
871     FLAG_GENERIC(MNT_FORCE),
872 #endif
873 #ifdef MNT_DETACH
874     FLAG_GENERIC(MNT_DETACH),
875 #endif
876 #ifdef MNT_EXPIRE
877     FLAG_GENERIC(MNT_EXPIRE),
878 #endif
879     FLAG_END,
880 };
881 
882 UNUSED static struct flags mmap_prot_flags[] = {
883     FLAG_GENERIC(PROT_NONE),
884     FLAG_GENERIC(PROT_EXEC),
885     FLAG_GENERIC(PROT_READ),
886     FLAG_GENERIC(PROT_WRITE),
887     FLAG_TARGET(PROT_SEM),
888     FLAG_GENERIC(PROT_GROWSDOWN),
889     FLAG_GENERIC(PROT_GROWSUP),
890     FLAG_END,
891 };
892 
893 UNUSED static struct flags mmap_flags[] = {
894     FLAG_TARGET(MAP_SHARED),
895     FLAG_TARGET(MAP_PRIVATE),
896     FLAG_TARGET(MAP_ANONYMOUS),
897     FLAG_TARGET(MAP_DENYWRITE),
898     FLAG_TARGET(MAP_FIXED),
899     FLAG_TARGET(MAP_GROWSDOWN),
900     FLAG_TARGET(MAP_EXECUTABLE),
901 #ifdef MAP_LOCKED
902     FLAG_TARGET(MAP_LOCKED),
903 #endif
904 #ifdef MAP_NONBLOCK
905     FLAG_TARGET(MAP_NONBLOCK),
906 #endif
907     FLAG_TARGET(MAP_NORESERVE),
908 #ifdef MAP_POPULATE
909     FLAG_TARGET(MAP_POPULATE),
910 #endif
911 #ifdef TARGET_MAP_UNINITIALIZED
912     FLAG_TARGET(MAP_UNINITIALIZED),
913 #endif
914     FLAG_END,
915 };
916 
917 UNUSED static struct flags clone_flags[] = {
918     FLAG_GENERIC(CLONE_VM),
919     FLAG_GENERIC(CLONE_FS),
920     FLAG_GENERIC(CLONE_FILES),
921     FLAG_GENERIC(CLONE_SIGHAND),
922     FLAG_GENERIC(CLONE_PTRACE),
923     FLAG_GENERIC(CLONE_VFORK),
924     FLAG_GENERIC(CLONE_PARENT),
925     FLAG_GENERIC(CLONE_THREAD),
926     FLAG_GENERIC(CLONE_NEWNS),
927     FLAG_GENERIC(CLONE_SYSVSEM),
928     FLAG_GENERIC(CLONE_SETTLS),
929     FLAG_GENERIC(CLONE_PARENT_SETTID),
930     FLAG_GENERIC(CLONE_CHILD_CLEARTID),
931     FLAG_GENERIC(CLONE_DETACHED),
932     FLAG_GENERIC(CLONE_UNTRACED),
933     FLAG_GENERIC(CLONE_CHILD_SETTID),
934 #if defined(CLONE_NEWUTS)
935     FLAG_GENERIC(CLONE_NEWUTS),
936 #endif
937 #if defined(CLONE_NEWIPC)
938     FLAG_GENERIC(CLONE_NEWIPC),
939 #endif
940 #if defined(CLONE_NEWUSER)
941     FLAG_GENERIC(CLONE_NEWUSER),
942 #endif
943 #if defined(CLONE_NEWPID)
944     FLAG_GENERIC(CLONE_NEWPID),
945 #endif
946 #if defined(CLONE_NEWNET)
947     FLAG_GENERIC(CLONE_NEWNET),
948 #endif
949 #if defined(CLONE_IO)
950     FLAG_GENERIC(CLONE_IO),
951 #endif
952     FLAG_END,
953 };
954 
955 UNUSED static struct flags msg_flags[] = {
956     /* send */
957     FLAG_GENERIC(MSG_CONFIRM),
958     FLAG_GENERIC(MSG_DONTROUTE),
959     FLAG_GENERIC(MSG_DONTWAIT),
960     FLAG_GENERIC(MSG_EOR),
961     FLAG_GENERIC(MSG_MORE),
962     FLAG_GENERIC(MSG_NOSIGNAL),
963     FLAG_GENERIC(MSG_OOB),
964     /* recv */
965     FLAG_GENERIC(MSG_CMSG_CLOEXEC),
966     FLAG_GENERIC(MSG_ERRQUEUE),
967     FLAG_GENERIC(MSG_PEEK),
968     FLAG_GENERIC(MSG_TRUNC),
969     FLAG_GENERIC(MSG_WAITALL),
970     /* recvmsg */
971     FLAG_GENERIC(MSG_CTRUNC),
972     FLAG_END,
973 };
974 
975 /*
976  * print_xxx utility functions.  These are used to print syscall
977  * parameters in certain format.  All of these have parameter
978  * named 'last'.  This parameter is used to add comma to output
979  * when last == 0.
980  */
981 
982 static const char *
983 get_comma(int last)
984 {
985     return ((last) ? "" : ",");
986 }
987 
988 static void
989 print_flags(const struct flags *f, abi_long flags, int last)
990 {
991     const char *sep = "";
992     int n;
993 
994     if ((flags == 0) && (f->f_value == 0)) {
995         gemu_log("%s%s", f->f_string, get_comma(last));
996         return;
997     }
998     for (n = 0; f->f_string != NULL; f++) {
999         if ((f->f_value != 0) && ((flags & f->f_value) == f->f_value)) {
1000             gemu_log("%s%s", sep, f->f_string);
1001             flags &= ~f->f_value;
1002             sep = "|";
1003             n++;
1004         }
1005     }
1006 
1007     if (n > 0) {
1008         /* print rest of the flags as numeric */
1009         if (flags != 0) {
1010             gemu_log("%s%#x%s", sep, (unsigned int)flags, get_comma(last));
1011         } else {
1012             gemu_log("%s", get_comma(last));
1013         }
1014     } else {
1015         /* no string version of flags found, print them in hex then */
1016         gemu_log("%#x%s", (unsigned int)flags, get_comma(last));
1017     }
1018 }
1019 
1020 static void
1021 print_at_dirfd(abi_long dirfd, int last)
1022 {
1023 #ifdef AT_FDCWD
1024     if (dirfd == AT_FDCWD) {
1025         gemu_log("AT_FDCWD%s", get_comma(last));
1026         return;
1027     }
1028 #endif
1029     gemu_log("%d%s", (int)dirfd, get_comma(last));
1030 }
1031 
1032 static void
1033 print_file_mode(abi_long mode, int last)
1034 {
1035     const char *sep = "";
1036     const struct flags *m;
1037 
1038     for (m = &mode_flags[0]; m->f_string != NULL; m++) {
1039         if ((m->f_value & mode) == m->f_value) {
1040             gemu_log("%s%s", m->f_string, sep);
1041             sep = "|";
1042             mode &= ~m->f_value;
1043             break;
1044         }
1045     }
1046 
1047     mode &= ~S_IFMT;
1048     /* print rest of the mode as octal */
1049     if (mode != 0)
1050         gemu_log("%s%#o", sep, (unsigned int)mode);
1051 
1052     gemu_log("%s", get_comma(last));
1053 }
1054 
1055 static void
1056 print_open_flags(abi_long flags, int last)
1057 {
1058     print_flags(open_access_flags, flags & TARGET_O_ACCMODE, 1);
1059     flags &= ~TARGET_O_ACCMODE;
1060     if (flags == 0) {
1061         gemu_log("%s", get_comma(last));
1062         return;
1063     }
1064     gemu_log("|");
1065     print_flags(open_flags, flags, last);
1066 }
1067 
1068 static void
1069 print_syscall_prologue(const struct syscallname *sc)
1070 {
1071     gemu_log("%s(", sc->name);
1072 }
1073 
1074 /*ARGSUSED*/
1075 static void
1076 print_syscall_epilogue(const struct syscallname *sc)
1077 {
1078     (void)sc;
1079     gemu_log(")");
1080 }
1081 
1082 static void
1083 print_string(abi_long addr, int last)
1084 {
1085     char *s;
1086 
1087     if ((s = lock_user_string(addr)) != NULL) {
1088         gemu_log("\"%s\"%s", s, get_comma(last));
1089         unlock_user(s, addr, 0);
1090     } else {
1091         /* can't get string out of it, so print it as pointer */
1092         print_pointer(addr, last);
1093     }
1094 }
1095 
1096 #define MAX_PRINT_BUF 40
1097 static void
1098 print_buf(abi_long addr, abi_long len, int last)
1099 {
1100     uint8_t *s;
1101     int i;
1102 
1103     s = lock_user(VERIFY_READ, addr, len, 1);
1104     if (s) {
1105         gemu_log("\"");
1106         for (i = 0; i < MAX_PRINT_BUF && i < len; i++) {
1107             if (isprint(s[i])) {
1108                 gemu_log("%c", s[i]);
1109             } else {
1110                 gemu_log("\\%o", s[i]);
1111             }
1112         }
1113         gemu_log("\"");
1114         if (i != len) {
1115             gemu_log("...");
1116         }
1117         if (!last) {
1118             gemu_log(",");
1119         }
1120         unlock_user(s, addr, 0);
1121     } else {
1122         print_pointer(addr, last);
1123     }
1124 }
1125 
1126 /*
1127  * Prints out raw parameter using given format.  Caller needs
1128  * to do byte swapping if needed.
1129  */
1130 static void
1131 print_raw_param(const char *fmt, abi_long param, int last)
1132 {
1133     char format[64];
1134 
1135     (void) snprintf(format, sizeof (format), "%s%s", fmt, get_comma(last));
1136     gemu_log(format, param);
1137 }
1138 
1139 static void
1140 print_pointer(abi_long p, int last)
1141 {
1142     if (p == 0)
1143         gemu_log("NULL%s", get_comma(last));
1144     else
1145         gemu_log("0x" TARGET_ABI_FMT_lx "%s", p, get_comma(last));
1146 }
1147 
1148 /*
1149  * Reads 32-bit (int) number from guest address space from
1150  * address 'addr' and prints it.
1151  */
1152 static void
1153 print_number(abi_long addr, int last)
1154 {
1155     if (addr == 0) {
1156         gemu_log("NULL%s", get_comma(last));
1157     } else {
1158         int num;
1159 
1160         get_user_s32(num, addr);
1161         gemu_log("[%d]%s", num, get_comma(last));
1162     }
1163 }
1164 
1165 static void
1166 print_timeval(abi_ulong tv_addr, int last)
1167 {
1168     if( tv_addr ) {
1169         struct target_timeval *tv;
1170 
1171         tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1);
1172         if (!tv)
1173             return;
1174         gemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s",
1175             tswapal(tv->tv_sec), tswapal(tv->tv_usec), get_comma(last));
1176         unlock_user(tv, tv_addr, 0);
1177     } else
1178         gemu_log("NULL%s", get_comma(last));
1179 }
1180 
1181 #undef UNUSED
1182 
1183 #ifdef TARGET_NR_accept
1184 static void
1185 print_accept(const struct syscallname *name,
1186     abi_long arg0, abi_long arg1, abi_long arg2,
1187     abi_long arg3, abi_long arg4, abi_long arg5)
1188 {
1189     print_syscall_prologue(name);
1190     print_raw_param("%d", arg0, 0);
1191     print_pointer(arg1, 0);
1192     print_number(arg2, 1);
1193     print_syscall_epilogue(name);
1194 }
1195 #endif
1196 
1197 #ifdef TARGET_NR_access
1198 static void
1199 print_access(const struct syscallname *name,
1200     abi_long arg0, abi_long arg1, abi_long arg2,
1201     abi_long arg3, abi_long arg4, abi_long arg5)
1202 {
1203     print_syscall_prologue(name);
1204     print_string(arg0, 0);
1205     print_flags(access_flags, arg1, 1);
1206     print_syscall_epilogue(name);
1207 }
1208 #endif
1209 
1210 #ifdef TARGET_NR_brk
1211 static void
1212 print_brk(const struct syscallname *name,
1213     abi_long arg0, abi_long arg1, abi_long arg2,
1214     abi_long arg3, abi_long arg4, abi_long arg5)
1215 {
1216     print_syscall_prologue(name);
1217     print_pointer(arg0, 1);
1218     print_syscall_epilogue(name);
1219 }
1220 #endif
1221 
1222 #ifdef TARGET_NR_chdir
1223 static void
1224 print_chdir(const struct syscallname *name,
1225     abi_long arg0, abi_long arg1, abi_long arg2,
1226     abi_long arg3, abi_long arg4, abi_long arg5)
1227 {
1228     print_syscall_prologue(name);
1229     print_string(arg0, 1);
1230     print_syscall_epilogue(name);
1231 }
1232 #endif
1233 
1234 #ifdef TARGET_NR_chmod
1235 static void
1236 print_chmod(const struct syscallname *name,
1237     abi_long arg0, abi_long arg1, abi_long arg2,
1238     abi_long arg3, abi_long arg4, abi_long arg5)
1239 {
1240     print_syscall_prologue(name);
1241     print_string(arg0, 0);
1242     print_file_mode(arg1, 1);
1243     print_syscall_epilogue(name);
1244 }
1245 #endif
1246 
1247 #ifdef TARGET_NR_clock_adjtime
1248 static void
1249 print_clock_adjtime(const struct syscallname *name,
1250     abi_long arg0, abi_long arg1, abi_long arg2,
1251     abi_long arg3, abi_long arg4, abi_long arg5)
1252 {
1253     print_syscall_prologue(name);
1254     print_clockid(arg0, 0);
1255     print_pointer(arg1, 1);
1256     print_syscall_epilogue(name);
1257 }
1258 #endif
1259 
1260 #ifdef TARGET_NR_clone
1261 static void do_print_clone(unsigned int flags, abi_ulong newsp,
1262                            abi_ulong parent_tidptr, target_ulong newtls,
1263                            abi_ulong child_tidptr)
1264 {
1265     print_flags(clone_flags, flags, 0);
1266     print_raw_param("child_stack=0x" TARGET_ABI_FMT_lx, newsp, 0);
1267     print_raw_param("parent_tidptr=0x" TARGET_ABI_FMT_lx, parent_tidptr, 0);
1268     print_raw_param("tls=0x" TARGET_ABI_FMT_lx, newtls, 0);
1269     print_raw_param("child_tidptr=0x" TARGET_ABI_FMT_lx, child_tidptr, 1);
1270 }
1271 
1272 static void
1273 print_clone(const struct syscallname *name,
1274     abi_long arg1, abi_long arg2, abi_long arg3,
1275     abi_long arg4, abi_long arg5, abi_long arg6)
1276 {
1277     print_syscall_prologue(name);
1278 #if defined(TARGET_MICROBLAZE)
1279     do_print_clone(arg1, arg2, arg4, arg6, arg5);
1280 #elif defined(TARGET_CLONE_BACKWARDS)
1281     do_print_clone(arg1, arg2, arg3, arg4, arg5);
1282 #elif defined(TARGET_CLONE_BACKWARDS2)
1283     do_print_clone(arg2, arg1, arg3, arg5, arg4);
1284 #else
1285     do_print_clone(arg1, arg2, arg3, arg5, arg4);
1286 #endif
1287     print_syscall_epilogue(name);
1288 }
1289 #endif
1290 
1291 #ifdef TARGET_NR_creat
1292 static void
1293 print_creat(const struct syscallname *name,
1294     abi_long arg0, abi_long arg1, abi_long arg2,
1295     abi_long arg3, abi_long arg4, abi_long arg5)
1296 {
1297     print_syscall_prologue(name);
1298     print_string(arg0, 0);
1299     print_file_mode(arg1, 1);
1300     print_syscall_epilogue(name);
1301 }
1302 #endif
1303 
1304 #ifdef TARGET_NR_execv
1305 static void
1306 print_execv(const struct syscallname *name,
1307     abi_long arg0, abi_long arg1, abi_long arg2,
1308     abi_long arg3, abi_long arg4, abi_long arg5)
1309 {
1310     print_syscall_prologue(name);
1311     print_string(arg0, 0);
1312     print_raw_param("0x" TARGET_ABI_FMT_lx, arg1, 1);
1313     print_syscall_epilogue(name);
1314 }
1315 #endif
1316 
1317 #ifdef TARGET_NR_faccessat
1318 static void
1319 print_faccessat(const struct syscallname *name,
1320     abi_long arg0, abi_long arg1, abi_long arg2,
1321     abi_long arg3, abi_long arg4, abi_long arg5)
1322 {
1323     print_syscall_prologue(name);
1324     print_at_dirfd(arg0, 0);
1325     print_string(arg1, 0);
1326     print_flags(access_flags, arg2, 0);
1327     print_flags(at_file_flags, arg3, 1);
1328     print_syscall_epilogue(name);
1329 }
1330 #endif
1331 
1332 #ifdef TARGET_NR_fchmodat
1333 static void
1334 print_fchmodat(const struct syscallname *name,
1335     abi_long arg0, abi_long arg1, abi_long arg2,
1336     abi_long arg3, abi_long arg4, abi_long arg5)
1337 {
1338     print_syscall_prologue(name);
1339     print_at_dirfd(arg0, 0);
1340     print_string(arg1, 0);
1341     print_file_mode(arg2, 0);
1342     print_flags(at_file_flags, arg3, 1);
1343     print_syscall_epilogue(name);
1344 }
1345 #endif
1346 
1347 #ifdef TARGET_NR_fchownat
1348 static void
1349 print_fchownat(const struct syscallname *name,
1350     abi_long arg0, abi_long arg1, abi_long arg2,
1351     abi_long arg3, abi_long arg4, abi_long arg5)
1352 {
1353     print_syscall_prologue(name);
1354     print_at_dirfd(arg0, 0);
1355     print_string(arg1, 0);
1356     print_raw_param("%d", arg2, 0);
1357     print_raw_param("%d", arg3, 0);
1358     print_flags(at_file_flags, arg4, 1);
1359     print_syscall_epilogue(name);
1360 }
1361 #endif
1362 
1363 #if defined(TARGET_NR_fcntl) || defined(TARGET_NR_fcntl64)
1364 static void
1365 print_fcntl(const struct syscallname *name,
1366     abi_long arg0, abi_long arg1, abi_long arg2,
1367     abi_long arg3, abi_long arg4, abi_long arg5)
1368 {
1369     print_syscall_prologue(name);
1370     print_raw_param("%d", arg0, 0);
1371     switch(arg1) {
1372     case TARGET_F_DUPFD:
1373         gemu_log("F_DUPFD,");
1374         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1375         break;
1376     case TARGET_F_GETFD:
1377         gemu_log("F_GETFD");
1378         break;
1379     case TARGET_F_SETFD:
1380         gemu_log("F_SETFD,");
1381         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1382         break;
1383     case TARGET_F_GETFL:
1384         gemu_log("F_GETFL");
1385         break;
1386     case TARGET_F_SETFL:
1387         gemu_log("F_SETFL,");
1388         print_open_flags(arg2, 1);
1389         break;
1390     case TARGET_F_GETLK:
1391         gemu_log("F_GETLK,");
1392         print_pointer(arg2, 1);
1393         break;
1394     case TARGET_F_SETLK:
1395         gemu_log("F_SETLK,");
1396         print_pointer(arg2, 1);
1397         break;
1398     case TARGET_F_SETLKW:
1399         gemu_log("F_SETLKW,");
1400         print_pointer(arg2, 1);
1401         break;
1402     case TARGET_F_GETOWN:
1403         gemu_log("F_GETOWN");
1404         break;
1405     case TARGET_F_SETOWN:
1406         gemu_log("F_SETOWN,");
1407         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1408         break;
1409     case TARGET_F_GETSIG:
1410         gemu_log("F_GETSIG");
1411         break;
1412     case TARGET_F_SETSIG:
1413         gemu_log("F_SETSIG,");
1414         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1415         break;
1416 #if TARGET_ABI_BITS == 32
1417     case TARGET_F_GETLK64:
1418         gemu_log("F_GETLK64,");
1419         print_pointer(arg2, 1);
1420         break;
1421     case TARGET_F_SETLK64:
1422         gemu_log("F_SETLK64,");
1423         print_pointer(arg2, 1);
1424         break;
1425     case TARGET_F_SETLKW64:
1426         gemu_log("F_SETLKW64,");
1427         print_pointer(arg2, 1);
1428         break;
1429 #endif
1430     case TARGET_F_SETLEASE:
1431         gemu_log("F_SETLEASE,");
1432         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1433         break;
1434     case TARGET_F_GETLEASE:
1435         gemu_log("F_GETLEASE");
1436         break;
1437     case TARGET_F_SETPIPE_SZ:
1438         gemu_log("F_SETPIPE_SZ,");
1439         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1440         break;
1441     case TARGET_F_GETPIPE_SZ:
1442         gemu_log("F_GETPIPE_SZ");
1443         break;
1444     case TARGET_F_DUPFD_CLOEXEC:
1445         gemu_log("F_DUPFD_CLOEXEC,");
1446         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1447         break;
1448     case TARGET_F_NOTIFY:
1449         gemu_log("F_NOTIFY,");
1450         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1451         break;
1452     default:
1453         print_raw_param(TARGET_ABI_FMT_ld, arg1, 0);
1454         print_pointer(arg2, 1);
1455         break;
1456     }
1457     print_syscall_epilogue(name);
1458 }
1459 #define print_fcntl64   print_fcntl
1460 #endif
1461 
1462 
1463 #ifdef TARGET_NR_futimesat
1464 static void
1465 print_futimesat(const struct syscallname *name,
1466     abi_long arg0, abi_long arg1, abi_long arg2,
1467     abi_long arg3, abi_long arg4, abi_long arg5)
1468 {
1469     print_syscall_prologue(name);
1470     print_at_dirfd(arg0, 0);
1471     print_string(arg1, 0);
1472     print_timeval(arg2, 0);
1473     print_timeval(arg2 + sizeof (struct target_timeval), 1);
1474     print_syscall_epilogue(name);
1475 }
1476 #endif
1477 
1478 #ifdef TARGET_NR_link
1479 static void
1480 print_link(const struct syscallname *name,
1481     abi_long arg0, abi_long arg1, abi_long arg2,
1482     abi_long arg3, abi_long arg4, abi_long arg5)
1483 {
1484     print_syscall_prologue(name);
1485     print_string(arg0, 0);
1486     print_string(arg1, 1);
1487     print_syscall_epilogue(name);
1488 }
1489 #endif
1490 
1491 #ifdef TARGET_NR_linkat
1492 static void
1493 print_linkat(const struct syscallname *name,
1494     abi_long arg0, abi_long arg1, abi_long arg2,
1495     abi_long arg3, abi_long arg4, abi_long arg5)
1496 {
1497     print_syscall_prologue(name);
1498     print_at_dirfd(arg0, 0);
1499     print_string(arg1, 0);
1500     print_at_dirfd(arg2, 0);
1501     print_string(arg3, 0);
1502     print_flags(at_file_flags, arg4, 1);
1503     print_syscall_epilogue(name);
1504 }
1505 #endif
1506 
1507 #ifdef TARGET_NR__llseek
1508 static void
1509 print__llseek(const struct syscallname *name,
1510     abi_long arg0, abi_long arg1, abi_long arg2,
1511     abi_long arg3, abi_long arg4, abi_long arg5)
1512 {
1513     const char *whence = "UNKNOWN";
1514     print_syscall_prologue(name);
1515     print_raw_param("%d", arg0, 0);
1516     print_raw_param("%ld", arg1, 0);
1517     print_raw_param("%ld", arg2, 0);
1518     print_pointer(arg3, 0);
1519     switch(arg4) {
1520     case SEEK_SET: whence = "SEEK_SET"; break;
1521     case SEEK_CUR: whence = "SEEK_CUR"; break;
1522     case SEEK_END: whence = "SEEK_END"; break;
1523     }
1524     gemu_log("%s",whence);
1525     print_syscall_epilogue(name);
1526 }
1527 #endif
1528 
1529 #if defined(TARGET_NR_socket)
1530 static void
1531 print_socket(const struct syscallname *name,
1532              abi_long arg0, abi_long arg1, abi_long arg2,
1533              abi_long arg3, abi_long arg4, abi_long arg5)
1534 {
1535     abi_ulong domain = arg0, type = arg1, protocol = arg2;
1536 
1537     print_syscall_prologue(name);
1538     print_socket_domain(domain);
1539     gemu_log(",");
1540     print_socket_type(type);
1541     gemu_log(",");
1542     if (domain == AF_PACKET ||
1543         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
1544         protocol = tswap16(protocol);
1545     }
1546     print_socket_protocol(domain, type, protocol);
1547     print_syscall_epilogue(name);
1548 }
1549 
1550 #endif
1551 
1552 #if defined(TARGET_NR_socketcall)
1553 
1554 #define get_user_ualx(x, gaddr, idx) \
1555         get_user_ual(x, (gaddr) + (idx) * sizeof(abi_long))
1556 
1557 static void do_print_socket(const char *name, abi_long arg1)
1558 {
1559     abi_ulong domain, type, protocol;
1560 
1561     get_user_ualx(domain, arg1, 0);
1562     get_user_ualx(type, arg1, 1);
1563     get_user_ualx(protocol, arg1, 2);
1564     gemu_log("%s(", name);
1565     print_socket_domain(domain);
1566     gemu_log(",");
1567     print_socket_type(type);
1568     gemu_log(",");
1569     if (domain == AF_PACKET ||
1570         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
1571         protocol = tswap16(protocol);
1572     }
1573     print_socket_protocol(domain, type, protocol);
1574     gemu_log(")");
1575 }
1576 
1577 static void do_print_sockaddr(const char *name, abi_long arg1)
1578 {
1579     abi_ulong sockfd, addr, addrlen;
1580 
1581     get_user_ualx(sockfd, arg1, 0);
1582     get_user_ualx(addr, arg1, 1);
1583     get_user_ualx(addrlen, arg1, 2);
1584 
1585     gemu_log("%s(", name);
1586     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1587     print_sockaddr(addr, addrlen);
1588     gemu_log(")");
1589 }
1590 
1591 static void do_print_listen(const char *name, abi_long arg1)
1592 {
1593     abi_ulong sockfd, backlog;
1594 
1595     get_user_ualx(sockfd, arg1, 0);
1596     get_user_ualx(backlog, arg1, 1);
1597 
1598     gemu_log("%s(", name);
1599     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1600     print_raw_param(TARGET_ABI_FMT_ld, backlog, 1);
1601     gemu_log(")");
1602 }
1603 
1604 static void do_print_socketpair(const char *name, abi_long arg1)
1605 {
1606     abi_ulong domain, type, protocol, tab;
1607 
1608     get_user_ualx(domain, arg1, 0);
1609     get_user_ualx(type, arg1, 1);
1610     get_user_ualx(protocol, arg1, 2);
1611     get_user_ualx(tab, arg1, 3);
1612 
1613     gemu_log("%s(", name);
1614     print_socket_domain(domain);
1615     gemu_log(",");
1616     print_socket_type(type);
1617     gemu_log(",");
1618     print_socket_protocol(domain, type, protocol);
1619     gemu_log(",");
1620     print_raw_param(TARGET_ABI_FMT_lx, tab, 1);
1621     gemu_log(")");
1622 }
1623 
1624 static void do_print_sendrecv(const char *name, abi_long arg1)
1625 {
1626     abi_ulong sockfd, msg, len, flags;
1627 
1628     get_user_ualx(sockfd, arg1, 0);
1629     get_user_ualx(msg, arg1, 1);
1630     get_user_ualx(len, arg1, 2);
1631     get_user_ualx(flags, arg1, 3);
1632 
1633     gemu_log("%s(", name);
1634     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1635     print_buf(msg, len, 0);
1636     print_raw_param(TARGET_ABI_FMT_ld, len, 0);
1637     print_flags(msg_flags, flags, 1);
1638     gemu_log(")");
1639 }
1640 
1641 static void do_print_msgaddr(const char *name, abi_long arg1)
1642 {
1643     abi_ulong sockfd, msg, len, flags, addr, addrlen;
1644 
1645     get_user_ualx(sockfd, arg1, 0);
1646     get_user_ualx(msg, arg1, 1);
1647     get_user_ualx(len, arg1, 2);
1648     get_user_ualx(flags, arg1, 3);
1649     get_user_ualx(addr, arg1, 4);
1650     get_user_ualx(addrlen, arg1, 5);
1651 
1652     gemu_log("%s(", name);
1653     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1654     print_buf(msg, len, 0);
1655     print_raw_param(TARGET_ABI_FMT_ld, len, 0);
1656     print_flags(msg_flags, flags, 0);
1657     print_sockaddr(addr, addrlen);
1658     gemu_log(")");
1659 }
1660 
1661 static void do_print_shutdown(const char *name, abi_long arg1)
1662 {
1663     abi_ulong sockfd, how;
1664 
1665     get_user_ualx(sockfd, arg1, 0);
1666     get_user_ualx(how, arg1, 1);
1667 
1668     gemu_log("shutdown(");
1669     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1670     switch (how) {
1671     case SHUT_RD:
1672         gemu_log("SHUT_RD");
1673         break;
1674     case SHUT_WR:
1675         gemu_log("SHUT_WR");
1676         break;
1677     case SHUT_RDWR:
1678         gemu_log("SHUT_RDWR");
1679         break;
1680     default:
1681         print_raw_param(TARGET_ABI_FMT_ld, how, 1);
1682         break;
1683     }
1684     gemu_log(")");
1685 }
1686 
1687 static void do_print_msg(const char *name, abi_long arg1)
1688 {
1689     abi_ulong sockfd, msg, flags;
1690 
1691     get_user_ualx(sockfd, arg1, 0);
1692     get_user_ualx(msg, arg1, 1);
1693     get_user_ualx(flags, arg1, 2);
1694 
1695     gemu_log("%s(", name);
1696     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1697     print_pointer(msg, 0);
1698     print_flags(msg_flags, flags, 1);
1699     gemu_log(")");
1700 }
1701 
1702 static void do_print_sockopt(const char *name, abi_long arg1)
1703 {
1704     abi_ulong sockfd, level, optname, optval, optlen;
1705 
1706     get_user_ualx(sockfd, arg1, 0);
1707     get_user_ualx(level, arg1, 1);
1708     get_user_ualx(optname, arg1, 2);
1709     get_user_ualx(optval, arg1, 3);
1710     get_user_ualx(optlen, arg1, 4);
1711 
1712     gemu_log("%s(", name);
1713     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1714     switch (level) {
1715     case SOL_TCP:
1716         gemu_log("SOL_TCP,");
1717         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1718         print_pointer(optval, 0);
1719         break;
1720     case SOL_IP:
1721         gemu_log("SOL_IP,");
1722         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1723         print_pointer(optval, 0);
1724         break;
1725     case SOL_RAW:
1726         gemu_log("SOL_RAW,");
1727         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1728         print_pointer(optval, 0);
1729         break;
1730     case TARGET_SOL_SOCKET:
1731         gemu_log("SOL_SOCKET,");
1732         switch (optname) {
1733         case TARGET_SO_DEBUG:
1734             gemu_log("SO_DEBUG,");
1735 print_optint:
1736             print_number(optval, 0);
1737             break;
1738         case TARGET_SO_REUSEADDR:
1739             gemu_log("SO_REUSEADDR,");
1740             goto print_optint;
1741         case TARGET_SO_TYPE:
1742             gemu_log("SO_TYPE,");
1743             goto print_optint;
1744         case TARGET_SO_ERROR:
1745             gemu_log("SO_ERROR,");
1746             goto print_optint;
1747         case TARGET_SO_DONTROUTE:
1748             gemu_log("SO_DONTROUTE,");
1749             goto print_optint;
1750         case TARGET_SO_BROADCAST:
1751             gemu_log("SO_BROADCAST,");
1752             goto print_optint;
1753         case TARGET_SO_SNDBUF:
1754             gemu_log("SO_SNDBUF,");
1755             goto print_optint;
1756         case TARGET_SO_RCVBUF:
1757             gemu_log("SO_RCVBUF,");
1758             goto print_optint;
1759         case TARGET_SO_KEEPALIVE:
1760             gemu_log("SO_KEEPALIVE,");
1761             goto print_optint;
1762         case TARGET_SO_OOBINLINE:
1763             gemu_log("SO_OOBINLINE,");
1764             goto print_optint;
1765         case TARGET_SO_NO_CHECK:
1766             gemu_log("SO_NO_CHECK,");
1767             goto print_optint;
1768         case TARGET_SO_PRIORITY:
1769             gemu_log("SO_PRIORITY,");
1770             goto print_optint;
1771         case TARGET_SO_BSDCOMPAT:
1772             gemu_log("SO_BSDCOMPAT,");
1773             goto print_optint;
1774         case TARGET_SO_PASSCRED:
1775             gemu_log("SO_PASSCRED,");
1776             goto print_optint;
1777         case TARGET_SO_TIMESTAMP:
1778             gemu_log("SO_TIMESTAMP,");
1779             goto print_optint;
1780         case TARGET_SO_RCVLOWAT:
1781             gemu_log("SO_RCVLOWAT,");
1782             goto print_optint;
1783         case TARGET_SO_RCVTIMEO:
1784             gemu_log("SO_RCVTIMEO,");
1785             print_timeval(optval, 0);
1786             break;
1787         case TARGET_SO_SNDTIMEO:
1788             gemu_log("SO_SNDTIMEO,");
1789             print_timeval(optval, 0);
1790             break;
1791         case TARGET_SO_ATTACH_FILTER: {
1792             struct target_sock_fprog *fprog;
1793 
1794             gemu_log("SO_ATTACH_FILTER,");
1795 
1796             if (lock_user_struct(VERIFY_READ, fprog, optval,  0)) {
1797                 struct target_sock_filter *filter;
1798                 gemu_log("{");
1799                 if (lock_user_struct(VERIFY_READ, filter,
1800                                      tswapal(fprog->filter),  0)) {
1801                     int i;
1802                     for (i = 0; i < tswap16(fprog->len) - 1; i++) {
1803                         gemu_log("[%d]{0x%x,%d,%d,0x%x},",
1804                                  i, tswap16(filter[i].code),
1805                                  filter[i].jt, filter[i].jf,
1806                                  tswap32(filter[i].k));
1807                     }
1808                     gemu_log("[%d]{0x%x,%d,%d,0x%x}",
1809                              i, tswap16(filter[i].code),
1810                              filter[i].jt, filter[i].jf,
1811                              tswap32(filter[i].k));
1812                 } else {
1813                     gemu_log(TARGET_ABI_FMT_lx, tswapal(fprog->filter));
1814                 }
1815                 gemu_log(",%d},", tswap16(fprog->len));
1816                 unlock_user(fprog, optval, 0);
1817             } else {
1818                 print_pointer(optval, 0);
1819             }
1820             break;
1821         }
1822         default:
1823             print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1824             print_pointer(optval, 0);
1825             break;
1826         }
1827         break;
1828     default:
1829         print_raw_param(TARGET_ABI_FMT_ld, level, 0);
1830         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1831         print_pointer(optval, 0);
1832         break;
1833     }
1834     print_raw_param(TARGET_ABI_FMT_ld, optlen, 1);
1835     gemu_log(")");
1836 }
1837 
1838 #define PRINT_SOCKOP(name, func) \
1839     [TARGET_SYS_##name] = { #name, func }
1840 
1841 static struct {
1842     const char *name;
1843     void (*print)(const char *, abi_long);
1844 } scall[] = {
1845     PRINT_SOCKOP(SOCKET, do_print_socket),
1846     PRINT_SOCKOP(BIND, do_print_sockaddr),
1847     PRINT_SOCKOP(CONNECT, do_print_sockaddr),
1848     PRINT_SOCKOP(LISTEN, do_print_listen),
1849     PRINT_SOCKOP(ACCEPT, do_print_sockaddr),
1850     PRINT_SOCKOP(GETSOCKNAME, do_print_sockaddr),
1851     PRINT_SOCKOP(GETPEERNAME, do_print_sockaddr),
1852     PRINT_SOCKOP(SOCKETPAIR, do_print_socketpair),
1853     PRINT_SOCKOP(SEND, do_print_sendrecv),
1854     PRINT_SOCKOP(RECV, do_print_sendrecv),
1855     PRINT_SOCKOP(SENDTO, do_print_msgaddr),
1856     PRINT_SOCKOP(RECVFROM, do_print_msgaddr),
1857     PRINT_SOCKOP(SHUTDOWN, do_print_shutdown),
1858     PRINT_SOCKOP(SETSOCKOPT, do_print_sockopt),
1859     PRINT_SOCKOP(GETSOCKOPT, do_print_sockopt),
1860     PRINT_SOCKOP(SENDMSG, do_print_msg),
1861     PRINT_SOCKOP(RECVMSG, do_print_msg),
1862     PRINT_SOCKOP(ACCEPT4, NULL),
1863     PRINT_SOCKOP(RECVMMSG, NULL),
1864     PRINT_SOCKOP(SENDMMSG, NULL),
1865 };
1866 
1867 static void
1868 print_socketcall(const struct syscallname *name,
1869                  abi_long arg0, abi_long arg1, abi_long arg2,
1870                  abi_long arg3, abi_long arg4, abi_long arg5)
1871 {
1872     if (arg0 >= 0 && arg0 < ARRAY_SIZE(scall) && scall[arg0].print) {
1873         scall[arg0].print(scall[arg0].name, arg1);
1874         return;
1875     }
1876     print_syscall_prologue(name);
1877     print_raw_param(TARGET_ABI_FMT_ld, arg0, 0);
1878     print_raw_param(TARGET_ABI_FMT_ld, arg1, 0);
1879     print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1880     print_raw_param(TARGET_ABI_FMT_ld, arg3, 0);
1881     print_raw_param(TARGET_ABI_FMT_ld, arg4, 0);
1882     print_raw_param(TARGET_ABI_FMT_ld, arg5, 0);
1883     print_syscall_epilogue(name);
1884 }
1885 #endif
1886 
1887 #if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) || \
1888     defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64)
1889 static void
1890 print_stat(const struct syscallname *name,
1891     abi_long arg0, abi_long arg1, abi_long arg2,
1892     abi_long arg3, abi_long arg4, abi_long arg5)
1893 {
1894     print_syscall_prologue(name);
1895     print_string(arg0, 0);
1896     print_pointer(arg1, 1);
1897     print_syscall_epilogue(name);
1898 }
1899 #define print_lstat     print_stat
1900 #define print_stat64	print_stat
1901 #define print_lstat64   print_stat
1902 #endif
1903 
1904 #if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
1905 static void
1906 print_fstat(const struct syscallname *name,
1907     abi_long arg0, abi_long arg1, abi_long arg2,
1908     abi_long arg3, abi_long arg4, abi_long arg5)
1909 {
1910     print_syscall_prologue(name);
1911     print_raw_param("%d", arg0, 0);
1912     print_pointer(arg1, 1);
1913     print_syscall_epilogue(name);
1914 }
1915 #define print_fstat64     print_fstat
1916 #endif
1917 
1918 #ifdef TARGET_NR_mkdir
1919 static void
1920 print_mkdir(const struct syscallname *name,
1921     abi_long arg0, abi_long arg1, abi_long arg2,
1922     abi_long arg3, abi_long arg4, abi_long arg5)
1923 {
1924     print_syscall_prologue(name);
1925     print_string(arg0, 0);
1926     print_file_mode(arg1, 1);
1927     print_syscall_epilogue(name);
1928 }
1929 #endif
1930 
1931 #ifdef TARGET_NR_mkdirat
1932 static void
1933 print_mkdirat(const struct syscallname *name,
1934     abi_long arg0, abi_long arg1, abi_long arg2,
1935     abi_long arg3, abi_long arg4, abi_long arg5)
1936 {
1937     print_syscall_prologue(name);
1938     print_at_dirfd(arg0, 0);
1939     print_string(arg1, 0);
1940     print_file_mode(arg2, 1);
1941     print_syscall_epilogue(name);
1942 }
1943 #endif
1944 
1945 #ifdef TARGET_NR_rmdir
1946 static void
1947 print_rmdir(const struct syscallname *name,
1948     abi_long arg0, abi_long arg1, abi_long arg2,
1949     abi_long arg3, abi_long arg4, abi_long arg5)
1950 {
1951     print_syscall_prologue(name);
1952     print_string(arg0, 0);
1953     print_syscall_epilogue(name);
1954 }
1955 #endif
1956 
1957 #ifdef TARGET_NR_rt_sigaction
1958 static void
1959 print_rt_sigaction(const struct syscallname *name,
1960     abi_long arg0, abi_long arg1, abi_long arg2,
1961     abi_long arg3, abi_long arg4, abi_long arg5)
1962 {
1963     print_syscall_prologue(name);
1964     print_signal(arg0, 0);
1965     print_pointer(arg1, 0);
1966     print_pointer(arg2, 1);
1967     print_syscall_epilogue(name);
1968 }
1969 #endif
1970 
1971 #ifdef TARGET_NR_rt_sigprocmask
1972 static void
1973 print_rt_sigprocmask(const struct syscallname *name,
1974     abi_long arg0, abi_long arg1, abi_long arg2,
1975     abi_long arg3, abi_long arg4, abi_long arg5)
1976 {
1977     const char *how = "UNKNOWN";
1978     print_syscall_prologue(name);
1979     switch(arg0) {
1980     case TARGET_SIG_BLOCK: how = "SIG_BLOCK"; break;
1981     case TARGET_SIG_UNBLOCK: how = "SIG_UNBLOCK"; break;
1982     case TARGET_SIG_SETMASK: how = "SIG_SETMASK"; break;
1983     }
1984     gemu_log("%s,",how);
1985     print_pointer(arg1, 0);
1986     print_pointer(arg2, 1);
1987     print_syscall_epilogue(name);
1988 }
1989 #endif
1990 
1991 #ifdef TARGET_NR_rt_sigqueueinfo
1992 static void
1993 print_rt_sigqueueinfo(const struct syscallname *name,
1994     abi_long arg0, abi_long arg1, abi_long arg2,
1995     abi_long arg3, abi_long arg4, abi_long arg5)
1996 {
1997     void *p;
1998     target_siginfo_t uinfo;
1999 
2000     print_syscall_prologue(name);
2001     print_raw_param("%d", arg0, 0);
2002     print_signal(arg1, 0);
2003     p = lock_user(VERIFY_READ, arg2, sizeof(target_siginfo_t), 1);
2004     if (p) {
2005         get_target_siginfo(&uinfo, p);
2006         print_siginfo(&uinfo);
2007 
2008         unlock_user(p, arg2, 0);
2009     } else {
2010         print_pointer(arg2, 1);
2011     }
2012     print_syscall_epilogue(name);
2013 }
2014 #endif
2015 
2016 #ifdef TARGET_NR_rt_tgsigqueueinfo
2017 static void
2018 print_rt_tgsigqueueinfo(const struct syscallname *name,
2019     abi_long arg0, abi_long arg1, abi_long arg2,
2020     abi_long arg3, abi_long arg4, abi_long arg5)
2021 {
2022     void *p;
2023     target_siginfo_t uinfo;
2024 
2025     print_syscall_prologue(name);
2026     print_raw_param("%d", arg0, 0);
2027     print_raw_param("%d", arg1, 0);
2028     print_signal(arg2, 0);
2029     p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
2030     if (p) {
2031         get_target_siginfo(&uinfo, p);
2032         print_siginfo(&uinfo);
2033 
2034         unlock_user(p, arg3, 0);
2035     } else {
2036         print_pointer(arg3, 1);
2037     }
2038     print_syscall_epilogue(name);
2039 }
2040 #endif
2041 
2042 #ifdef TARGET_NR_syslog
2043 static void
2044 print_syslog_action(abi_ulong arg, int last)
2045 {
2046     const char *type;
2047 
2048     switch (arg) {
2049         case TARGET_SYSLOG_ACTION_CLOSE: {
2050             type = "SYSLOG_ACTION_CLOSE";
2051             break;
2052         }
2053         case TARGET_SYSLOG_ACTION_OPEN: {
2054             type = "SYSLOG_ACTION_OPEN";
2055             break;
2056         }
2057         case TARGET_SYSLOG_ACTION_READ: {
2058             type = "SYSLOG_ACTION_READ";
2059             break;
2060         }
2061         case TARGET_SYSLOG_ACTION_READ_ALL: {
2062             type = "SYSLOG_ACTION_READ_ALL";
2063             break;
2064         }
2065         case TARGET_SYSLOG_ACTION_READ_CLEAR: {
2066             type = "SYSLOG_ACTION_READ_CLEAR";
2067             break;
2068         }
2069         case TARGET_SYSLOG_ACTION_CLEAR: {
2070             type = "SYSLOG_ACTION_CLEAR";
2071             break;
2072         }
2073         case TARGET_SYSLOG_ACTION_CONSOLE_OFF: {
2074             type = "SYSLOG_ACTION_CONSOLE_OFF";
2075             break;
2076         }
2077         case TARGET_SYSLOG_ACTION_CONSOLE_ON: {
2078             type = "SYSLOG_ACTION_CONSOLE_ON";
2079             break;
2080         }
2081         case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL: {
2082             type = "SYSLOG_ACTION_CONSOLE_LEVEL";
2083             break;
2084         }
2085         case TARGET_SYSLOG_ACTION_SIZE_UNREAD: {
2086             type = "SYSLOG_ACTION_SIZE_UNREAD";
2087             break;
2088         }
2089         case TARGET_SYSLOG_ACTION_SIZE_BUFFER: {
2090             type = "SYSLOG_ACTION_SIZE_BUFFER";
2091             break;
2092         }
2093         default: {
2094             print_raw_param("%ld", arg, last);
2095             return;
2096         }
2097     }
2098     gemu_log("%s%s", type, get_comma(last));
2099 }
2100 
2101 static void
2102 print_syslog(const struct syscallname *name,
2103     abi_long arg0, abi_long arg1, abi_long arg2,
2104     abi_long arg3, abi_long arg4, abi_long arg5)
2105 {
2106     print_syscall_prologue(name);
2107     print_syslog_action(arg0, 0);
2108     print_pointer(arg1, 0);
2109     print_raw_param("%d", arg2, 1);
2110     print_syscall_epilogue(name);
2111 }
2112 #endif
2113 
2114 #ifdef TARGET_NR_mknod
2115 static void
2116 print_mknod(const struct syscallname *name,
2117     abi_long arg0, abi_long arg1, abi_long arg2,
2118     abi_long arg3, abi_long arg4, abi_long arg5)
2119 {
2120     int hasdev = (arg1 & (S_IFCHR|S_IFBLK));
2121 
2122     print_syscall_prologue(name);
2123     print_string(arg0, 0);
2124     print_file_mode(arg1, (hasdev == 0));
2125     if (hasdev) {
2126         print_raw_param("makedev(%d", major(arg2), 0);
2127         print_raw_param("%d)", minor(arg2), 1);
2128     }
2129     print_syscall_epilogue(name);
2130 }
2131 #endif
2132 
2133 #ifdef TARGET_NR_mknodat
2134 static void
2135 print_mknodat(const struct syscallname *name,
2136     abi_long arg0, abi_long arg1, abi_long arg2,
2137     abi_long arg3, abi_long arg4, abi_long arg5)
2138 {
2139     int hasdev = (arg2 & (S_IFCHR|S_IFBLK));
2140 
2141     print_syscall_prologue(name);
2142     print_at_dirfd(arg0, 0);
2143     print_string(arg1, 0);
2144     print_file_mode(arg2, (hasdev == 0));
2145     if (hasdev) {
2146         print_raw_param("makedev(%d", major(arg3), 0);
2147         print_raw_param("%d)", minor(arg3), 1);
2148     }
2149     print_syscall_epilogue(name);
2150 }
2151 #endif
2152 
2153 #ifdef TARGET_NR_mq_open
2154 static void
2155 print_mq_open(const struct syscallname *name,
2156     abi_long arg0, abi_long arg1, abi_long arg2,
2157     abi_long arg3, abi_long arg4, abi_long arg5)
2158 {
2159     int is_creat = (arg1 & TARGET_O_CREAT);
2160 
2161     print_syscall_prologue(name);
2162     print_string(arg0, 0);
2163     print_open_flags(arg1, (is_creat == 0));
2164     if (is_creat) {
2165         print_file_mode(arg2, 0);
2166         print_pointer(arg3, 1);
2167     }
2168     print_syscall_epilogue(name);
2169 }
2170 #endif
2171 
2172 #ifdef TARGET_NR_open
2173 static void
2174 print_open(const struct syscallname *name,
2175     abi_long arg0, abi_long arg1, abi_long arg2,
2176     abi_long arg3, abi_long arg4, abi_long arg5)
2177 {
2178     int is_creat = (arg1 & TARGET_O_CREAT);
2179 
2180     print_syscall_prologue(name);
2181     print_string(arg0, 0);
2182     print_open_flags(arg1, (is_creat == 0));
2183     if (is_creat)
2184         print_file_mode(arg2, 1);
2185     print_syscall_epilogue(name);
2186 }
2187 #endif
2188 
2189 #ifdef TARGET_NR_openat
2190 static void
2191 print_openat(const struct syscallname *name,
2192     abi_long arg0, abi_long arg1, abi_long arg2,
2193     abi_long arg3, abi_long arg4, abi_long arg5)
2194 {
2195     int is_creat = (arg2 & TARGET_O_CREAT);
2196 
2197     print_syscall_prologue(name);
2198     print_at_dirfd(arg0, 0);
2199     print_string(arg1, 0);
2200     print_open_flags(arg2, (is_creat == 0));
2201     if (is_creat)
2202         print_file_mode(arg3, 1);
2203     print_syscall_epilogue(name);
2204 }
2205 #endif
2206 
2207 #ifdef TARGET_NR_mq_unlink
2208 static void
2209 print_mq_unlink(const struct syscallname *name,
2210     abi_long arg0, abi_long arg1, abi_long arg2,
2211     abi_long arg3, abi_long arg4, abi_long arg5)
2212 {
2213     print_syscall_prologue(name);
2214     print_string(arg0, 1);
2215     print_syscall_epilogue(name);
2216 }
2217 #endif
2218 
2219 #if defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)
2220 static void
2221 print_fstatat64(const struct syscallname *name,
2222     abi_long arg0, abi_long arg1, abi_long arg2,
2223     abi_long arg3, abi_long arg4, abi_long arg5)
2224 {
2225     print_syscall_prologue(name);
2226     print_at_dirfd(arg0, 0);
2227     print_string(arg1, 0);
2228     print_pointer(arg2, 0);
2229     print_flags(at_file_flags, arg3, 1);
2230     print_syscall_epilogue(name);
2231 }
2232 #define print_newfstatat    print_fstatat64
2233 #endif
2234 
2235 #ifdef TARGET_NR_readlink
2236 static void
2237 print_readlink(const struct syscallname *name,
2238     abi_long arg0, abi_long arg1, abi_long arg2,
2239     abi_long arg3, abi_long arg4, abi_long arg5)
2240 {
2241     print_syscall_prologue(name);
2242     print_string(arg0, 0);
2243     print_pointer(arg1, 0);
2244     print_raw_param("%u", arg2, 1);
2245     print_syscall_epilogue(name);
2246 }
2247 #endif
2248 
2249 #ifdef TARGET_NR_readlinkat
2250 static void
2251 print_readlinkat(const struct syscallname *name,
2252     abi_long arg0, abi_long arg1, abi_long arg2,
2253     abi_long arg3, abi_long arg4, abi_long arg5)
2254 {
2255     print_syscall_prologue(name);
2256     print_at_dirfd(arg0, 0);
2257     print_string(arg1, 0);
2258     print_pointer(arg2, 0);
2259     print_raw_param("%u", arg3, 1);
2260     print_syscall_epilogue(name);
2261 }
2262 #endif
2263 
2264 #ifdef TARGET_NR_rename
2265 static void
2266 print_rename(const struct syscallname *name,
2267     abi_long arg0, abi_long arg1, abi_long arg2,
2268     abi_long arg3, abi_long arg4, abi_long arg5)
2269 {
2270     print_syscall_prologue(name);
2271     print_string(arg0, 0);
2272     print_string(arg1, 1);
2273     print_syscall_epilogue(name);
2274 }
2275 #endif
2276 
2277 #ifdef TARGET_NR_renameat
2278 static void
2279 print_renameat(const struct syscallname *name,
2280     abi_long arg0, abi_long arg1, abi_long arg2,
2281     abi_long arg3, abi_long arg4, abi_long arg5)
2282 {
2283     print_syscall_prologue(name);
2284     print_at_dirfd(arg0, 0);
2285     print_string(arg1, 0);
2286     print_at_dirfd(arg2, 0);
2287     print_string(arg3, 1);
2288     print_syscall_epilogue(name);
2289 }
2290 #endif
2291 
2292 #ifdef TARGET_NR_statfs
2293 static void
2294 print_statfs(const struct syscallname *name,
2295     abi_long arg0, abi_long arg1, abi_long arg2,
2296     abi_long arg3, abi_long arg4, abi_long arg5)
2297 {
2298     print_syscall_prologue(name);
2299     print_string(arg0, 0);
2300     print_pointer(arg1, 1);
2301     print_syscall_epilogue(name);
2302 }
2303 #define print_statfs64  print_statfs
2304 #endif
2305 
2306 #ifdef TARGET_NR_symlink
2307 static void
2308 print_symlink(const struct syscallname *name,
2309     abi_long arg0, abi_long arg1, abi_long arg2,
2310     abi_long arg3, abi_long arg4, abi_long arg5)
2311 {
2312     print_syscall_prologue(name);
2313     print_string(arg0, 0);
2314     print_string(arg1, 1);
2315     print_syscall_epilogue(name);
2316 }
2317 #endif
2318 
2319 #ifdef TARGET_NR_symlinkat
2320 static void
2321 print_symlinkat(const struct syscallname *name,
2322     abi_long arg0, abi_long arg1, abi_long arg2,
2323     abi_long arg3, abi_long arg4, abi_long arg5)
2324 {
2325     print_syscall_prologue(name);
2326     print_string(arg0, 0);
2327     print_at_dirfd(arg1, 0);
2328     print_string(arg2, 1);
2329     print_syscall_epilogue(name);
2330 }
2331 #endif
2332 
2333 #ifdef TARGET_NR_mount
2334 static void
2335 print_mount(const struct syscallname *name,
2336     abi_long arg0, abi_long arg1, abi_long arg2,
2337     abi_long arg3, abi_long arg4, abi_long arg5)
2338 {
2339     print_syscall_prologue(name);
2340     print_string(arg0, 0);
2341     print_string(arg1, 0);
2342     print_string(arg2, 0);
2343     print_flags(mount_flags, arg3, 0);
2344     print_pointer(arg4, 1);
2345     print_syscall_epilogue(name);
2346 }
2347 #endif
2348 
2349 #ifdef TARGET_NR_umount
2350 static void
2351 print_umount(const struct syscallname *name,
2352     abi_long arg0, abi_long arg1, abi_long arg2,
2353     abi_long arg3, abi_long arg4, abi_long arg5)
2354 {
2355     print_syscall_prologue(name);
2356     print_string(arg0, 1);
2357     print_syscall_epilogue(name);
2358 }
2359 #endif
2360 
2361 #ifdef TARGET_NR_umount2
2362 static void
2363 print_umount2(const struct syscallname *name,
2364     abi_long arg0, abi_long arg1, abi_long arg2,
2365     abi_long arg3, abi_long arg4, abi_long arg5)
2366 {
2367     print_syscall_prologue(name);
2368     print_string(arg0, 0);
2369     print_flags(umount2_flags, arg1, 1);
2370     print_syscall_epilogue(name);
2371 }
2372 #endif
2373 
2374 #ifdef TARGET_NR_unlink
2375 static void
2376 print_unlink(const struct syscallname *name,
2377     abi_long arg0, abi_long arg1, abi_long arg2,
2378     abi_long arg3, abi_long arg4, abi_long arg5)
2379 {
2380     print_syscall_prologue(name);
2381     print_string(arg0, 1);
2382     print_syscall_epilogue(name);
2383 }
2384 #endif
2385 
2386 #ifdef TARGET_NR_unlinkat
2387 static void
2388 print_unlinkat(const struct syscallname *name,
2389     abi_long arg0, abi_long arg1, abi_long arg2,
2390     abi_long arg3, abi_long arg4, abi_long arg5)
2391 {
2392     print_syscall_prologue(name);
2393     print_at_dirfd(arg0, 0);
2394     print_string(arg1, 0);
2395     print_flags(unlinkat_flags, arg2, 1);
2396     print_syscall_epilogue(name);
2397 }
2398 #endif
2399 
2400 #ifdef TARGET_NR_utime
2401 static void
2402 print_utime(const struct syscallname *name,
2403     abi_long arg0, abi_long arg1, abi_long arg2,
2404     abi_long arg3, abi_long arg4, abi_long arg5)
2405 {
2406     print_syscall_prologue(name);
2407     print_string(arg0, 0);
2408     print_pointer(arg1, 1);
2409     print_syscall_epilogue(name);
2410 }
2411 #endif
2412 
2413 #ifdef TARGET_NR_utimes
2414 static void
2415 print_utimes(const struct syscallname *name,
2416     abi_long arg0, abi_long arg1, abi_long arg2,
2417     abi_long arg3, abi_long arg4, abi_long arg5)
2418 {
2419     print_syscall_prologue(name);
2420     print_string(arg0, 0);
2421     print_pointer(arg1, 1);
2422     print_syscall_epilogue(name);
2423 }
2424 #endif
2425 
2426 #ifdef TARGET_NR_utimensat
2427 static void
2428 print_utimensat(const struct syscallname *name,
2429     abi_long arg0, abi_long arg1, abi_long arg2,
2430     abi_long arg3, abi_long arg4, abi_long arg5)
2431 {
2432     print_syscall_prologue(name);
2433     print_at_dirfd(arg0, 0);
2434     print_string(arg1, 0);
2435     print_pointer(arg2, 0);
2436     print_flags(at_file_flags, arg3, 1);
2437     print_syscall_epilogue(name);
2438 }
2439 #endif
2440 
2441 #if defined(TARGET_NR_mmap) || defined(TARGET_NR_mmap2)
2442 static void
2443 print_mmap(const struct syscallname *name,
2444     abi_long arg0, abi_long arg1, abi_long arg2,
2445     abi_long arg3, abi_long arg4, abi_long arg5)
2446 {
2447     print_syscall_prologue(name);
2448     print_pointer(arg0, 0);
2449     print_raw_param("%d", arg1, 0);
2450     print_flags(mmap_prot_flags, arg2, 0);
2451     print_flags(mmap_flags, arg3, 0);
2452     print_raw_param("%d", arg4, 0);
2453     print_raw_param("%#x", arg5, 1);
2454     print_syscall_epilogue(name);
2455 }
2456 #define print_mmap2     print_mmap
2457 #endif
2458 
2459 #ifdef TARGET_NR_mprotect
2460 static void
2461 print_mprotect(const struct syscallname *name,
2462     abi_long arg0, abi_long arg1, abi_long arg2,
2463     abi_long arg3, abi_long arg4, abi_long arg5)
2464 {
2465     print_syscall_prologue(name);
2466     print_pointer(arg0, 0);
2467     print_raw_param("%d", arg1, 0);
2468     print_flags(mmap_prot_flags, arg2, 1);
2469     print_syscall_epilogue(name);
2470 }
2471 #endif
2472 
2473 #ifdef TARGET_NR_munmap
2474 static void
2475 print_munmap(const struct syscallname *name,
2476     abi_long arg0, abi_long arg1, abi_long arg2,
2477     abi_long arg3, abi_long arg4, abi_long arg5)
2478 {
2479     print_syscall_prologue(name);
2480     print_pointer(arg0, 0);
2481     print_raw_param("%d", arg1, 1);
2482     print_syscall_epilogue(name);
2483 }
2484 #endif
2485 
2486 #ifdef TARGET_NR_futex
2487 static void print_futex_op(abi_long tflag, int last)
2488 {
2489 #define print_op(val) \
2490 if( cmd == val ) { \
2491     gemu_log(#val); \
2492     return; \
2493 }
2494 
2495     int cmd = (int)tflag;
2496 #ifdef FUTEX_PRIVATE_FLAG
2497     if (cmd & FUTEX_PRIVATE_FLAG) {
2498         gemu_log("FUTEX_PRIVATE_FLAG|");
2499         cmd &= ~FUTEX_PRIVATE_FLAG;
2500     }
2501 #endif
2502 #ifdef FUTEX_CLOCK_REALTIME
2503     if (cmd & FUTEX_CLOCK_REALTIME) {
2504         gemu_log("FUTEX_CLOCK_REALTIME|");
2505         cmd &= ~FUTEX_CLOCK_REALTIME;
2506     }
2507 #endif
2508     print_op(FUTEX_WAIT)
2509     print_op(FUTEX_WAKE)
2510     print_op(FUTEX_FD)
2511     print_op(FUTEX_REQUEUE)
2512     print_op(FUTEX_CMP_REQUEUE)
2513     print_op(FUTEX_WAKE_OP)
2514     print_op(FUTEX_LOCK_PI)
2515     print_op(FUTEX_UNLOCK_PI)
2516     print_op(FUTEX_TRYLOCK_PI)
2517 #ifdef FUTEX_WAIT_BITSET
2518     print_op(FUTEX_WAIT_BITSET)
2519 #endif
2520 #ifdef FUTEX_WAKE_BITSET
2521     print_op(FUTEX_WAKE_BITSET)
2522 #endif
2523     /* unknown values */
2524     gemu_log("%d",cmd);
2525 }
2526 
2527 static void
2528 print_futex(const struct syscallname *name,
2529     abi_long arg0, abi_long arg1, abi_long arg2,
2530     abi_long arg3, abi_long arg4, abi_long arg5)
2531 {
2532     print_syscall_prologue(name);
2533     print_pointer(arg0, 0);
2534     print_futex_op(arg1, 0);
2535     print_raw_param(",%d", arg2, 0);
2536     print_pointer(arg3, 0); /* struct timespec */
2537     print_pointer(arg4, 0);
2538     print_raw_param("%d", arg4, 1);
2539     print_syscall_epilogue(name);
2540 }
2541 #endif
2542 
2543 #ifdef TARGET_NR_kill
2544 static void
2545 print_kill(const struct syscallname *name,
2546     abi_long arg0, abi_long arg1, abi_long arg2,
2547     abi_long arg3, abi_long arg4, abi_long arg5)
2548 {
2549     print_syscall_prologue(name);
2550     print_raw_param("%d", arg0, 0);
2551     print_signal(arg1, 1);
2552     print_syscall_epilogue(name);
2553 }
2554 #endif
2555 
2556 #ifdef TARGET_NR_tkill
2557 static void
2558 print_tkill(const struct syscallname *name,
2559     abi_long arg0, abi_long arg1, abi_long arg2,
2560     abi_long arg3, abi_long arg4, abi_long arg5)
2561 {
2562     print_syscall_prologue(name);
2563     print_raw_param("%d", arg0, 0);
2564     print_signal(arg1, 1);
2565     print_syscall_epilogue(name);
2566 }
2567 #endif
2568 
2569 #ifdef TARGET_NR_tgkill
2570 static void
2571 print_tgkill(const struct syscallname *name,
2572     abi_long arg0, abi_long arg1, abi_long arg2,
2573     abi_long arg3, abi_long arg4, abi_long arg5)
2574 {
2575     print_syscall_prologue(name);
2576     print_raw_param("%d", arg0, 0);
2577     print_raw_param("%d", arg1, 0);
2578     print_signal(arg2, 1);
2579     print_syscall_epilogue(name);
2580 }
2581 #endif
2582 
2583 /*
2584  * An array of all of the syscalls we know about
2585  */
2586 
2587 static const struct syscallname scnames[] = {
2588 #include "strace.list"
2589 };
2590 
2591 static int nsyscalls = ARRAY_SIZE(scnames);
2592 
2593 /*
2594  * The public interface to this module.
2595  */
2596 void
2597 print_syscall(int num,
2598               abi_long arg1, abi_long arg2, abi_long arg3,
2599               abi_long arg4, abi_long arg5, abi_long arg6)
2600 {
2601     int i;
2602     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 ")";
2603 
2604     gemu_log("%d ", getpid() );
2605 
2606     for(i=0;i<nsyscalls;i++)
2607         if( scnames[i].nr == num ) {
2608             if( scnames[i].call != NULL ) {
2609                 scnames[i].call(&scnames[i],arg1,arg2,arg3,arg4,arg5,arg6);
2610             } else {
2611                 /* XXX: this format system is broken because it uses
2612                    host types and host pointers for strings */
2613                 if( scnames[i].format != NULL )
2614                     format = scnames[i].format;
2615                 gemu_log(format,scnames[i].name, arg1,arg2,arg3,arg4,arg5,arg6);
2616             }
2617             return;
2618         }
2619     gemu_log("Unknown syscall %d\n", num);
2620 }
2621 
2622 
2623 void
2624 print_syscall_ret(int num, abi_long ret)
2625 {
2626     int i;
2627     const char *errstr = NULL;
2628 
2629     for(i=0;i<nsyscalls;i++)
2630         if( scnames[i].nr == num ) {
2631             if( scnames[i].result != NULL ) {
2632                 scnames[i].result(&scnames[i],ret);
2633             } else {
2634                 if (ret < 0) {
2635                     errstr = target_strerror(-ret);
2636                 }
2637                 if (errstr) {
2638                     gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n",
2639                              -ret, errstr);
2640                 } else {
2641                     gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
2642                 }
2643             }
2644             break;
2645         }
2646 }
2647 
2648 void print_taken_signal(int target_signum, const target_siginfo_t *tinfo)
2649 {
2650     /* Print the strace output for a signal being taken:
2651      * --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0} ---
2652      */
2653     gemu_log("--- ");
2654     print_signal(target_signum, 1);
2655     gemu_log(" ");
2656     print_siginfo(tinfo);
2657     gemu_log(" ---\n");
2658 }
2659