xref: /openbmc/qemu/linux-user/strace.c (revision dc41aa7d)
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 #ifdef O_TMPFILE
842     FLAG_TARGET(O_TMPFILE),
843     FLAG_TARGET(__O_TMPFILE),
844 #endif
845     FLAG_END,
846 };
847 
848 UNUSED static struct flags mount_flags[] = {
849 #ifdef MS_BIND
850     FLAG_GENERIC(MS_BIND),
851 #endif
852 #ifdef MS_DIRSYNC
853     FLAG_GENERIC(MS_DIRSYNC),
854 #endif
855     FLAG_GENERIC(MS_MANDLOCK),
856 #ifdef MS_MOVE
857     FLAG_GENERIC(MS_MOVE),
858 #endif
859     FLAG_GENERIC(MS_NOATIME),
860     FLAG_GENERIC(MS_NODEV),
861     FLAG_GENERIC(MS_NODIRATIME),
862     FLAG_GENERIC(MS_NOEXEC),
863     FLAG_GENERIC(MS_NOSUID),
864     FLAG_GENERIC(MS_RDONLY),
865 #ifdef MS_RELATIME
866     FLAG_GENERIC(MS_RELATIME),
867 #endif
868     FLAG_GENERIC(MS_REMOUNT),
869     FLAG_GENERIC(MS_SYNCHRONOUS),
870     FLAG_END,
871 };
872 
873 UNUSED static struct flags umount2_flags[] = {
874 #ifdef MNT_FORCE
875     FLAG_GENERIC(MNT_FORCE),
876 #endif
877 #ifdef MNT_DETACH
878     FLAG_GENERIC(MNT_DETACH),
879 #endif
880 #ifdef MNT_EXPIRE
881     FLAG_GENERIC(MNT_EXPIRE),
882 #endif
883     FLAG_END,
884 };
885 
886 UNUSED static struct flags mmap_prot_flags[] = {
887     FLAG_GENERIC(PROT_NONE),
888     FLAG_GENERIC(PROT_EXEC),
889     FLAG_GENERIC(PROT_READ),
890     FLAG_GENERIC(PROT_WRITE),
891     FLAG_TARGET(PROT_SEM),
892     FLAG_GENERIC(PROT_GROWSDOWN),
893     FLAG_GENERIC(PROT_GROWSUP),
894     FLAG_END,
895 };
896 
897 UNUSED static struct flags mmap_flags[] = {
898     FLAG_TARGET(MAP_SHARED),
899     FLAG_TARGET(MAP_PRIVATE),
900     FLAG_TARGET(MAP_ANONYMOUS),
901     FLAG_TARGET(MAP_DENYWRITE),
902     FLAG_TARGET(MAP_FIXED),
903     FLAG_TARGET(MAP_GROWSDOWN),
904     FLAG_TARGET(MAP_EXECUTABLE),
905 #ifdef MAP_LOCKED
906     FLAG_TARGET(MAP_LOCKED),
907 #endif
908 #ifdef MAP_NONBLOCK
909     FLAG_TARGET(MAP_NONBLOCK),
910 #endif
911     FLAG_TARGET(MAP_NORESERVE),
912 #ifdef MAP_POPULATE
913     FLAG_TARGET(MAP_POPULATE),
914 #endif
915 #ifdef TARGET_MAP_UNINITIALIZED
916     FLAG_TARGET(MAP_UNINITIALIZED),
917 #endif
918     FLAG_END,
919 };
920 
921 UNUSED static struct flags clone_flags[] = {
922     FLAG_GENERIC(CLONE_VM),
923     FLAG_GENERIC(CLONE_FS),
924     FLAG_GENERIC(CLONE_FILES),
925     FLAG_GENERIC(CLONE_SIGHAND),
926     FLAG_GENERIC(CLONE_PTRACE),
927     FLAG_GENERIC(CLONE_VFORK),
928     FLAG_GENERIC(CLONE_PARENT),
929     FLAG_GENERIC(CLONE_THREAD),
930     FLAG_GENERIC(CLONE_NEWNS),
931     FLAG_GENERIC(CLONE_SYSVSEM),
932     FLAG_GENERIC(CLONE_SETTLS),
933     FLAG_GENERIC(CLONE_PARENT_SETTID),
934     FLAG_GENERIC(CLONE_CHILD_CLEARTID),
935     FLAG_GENERIC(CLONE_DETACHED),
936     FLAG_GENERIC(CLONE_UNTRACED),
937     FLAG_GENERIC(CLONE_CHILD_SETTID),
938 #if defined(CLONE_NEWUTS)
939     FLAG_GENERIC(CLONE_NEWUTS),
940 #endif
941 #if defined(CLONE_NEWIPC)
942     FLAG_GENERIC(CLONE_NEWIPC),
943 #endif
944 #if defined(CLONE_NEWUSER)
945     FLAG_GENERIC(CLONE_NEWUSER),
946 #endif
947 #if defined(CLONE_NEWPID)
948     FLAG_GENERIC(CLONE_NEWPID),
949 #endif
950 #if defined(CLONE_NEWNET)
951     FLAG_GENERIC(CLONE_NEWNET),
952 #endif
953 #if defined(CLONE_IO)
954     FLAG_GENERIC(CLONE_IO),
955 #endif
956     FLAG_END,
957 };
958 
959 UNUSED static struct flags msg_flags[] = {
960     /* send */
961     FLAG_GENERIC(MSG_CONFIRM),
962     FLAG_GENERIC(MSG_DONTROUTE),
963     FLAG_GENERIC(MSG_DONTWAIT),
964     FLAG_GENERIC(MSG_EOR),
965     FLAG_GENERIC(MSG_MORE),
966     FLAG_GENERIC(MSG_NOSIGNAL),
967     FLAG_GENERIC(MSG_OOB),
968     /* recv */
969     FLAG_GENERIC(MSG_CMSG_CLOEXEC),
970     FLAG_GENERIC(MSG_ERRQUEUE),
971     FLAG_GENERIC(MSG_PEEK),
972     FLAG_GENERIC(MSG_TRUNC),
973     FLAG_GENERIC(MSG_WAITALL),
974     /* recvmsg */
975     FLAG_GENERIC(MSG_CTRUNC),
976     FLAG_END,
977 };
978 
979 /*
980  * print_xxx utility functions.  These are used to print syscall
981  * parameters in certain format.  All of these have parameter
982  * named 'last'.  This parameter is used to add comma to output
983  * when last == 0.
984  */
985 
986 static const char *
987 get_comma(int last)
988 {
989     return ((last) ? "" : ",");
990 }
991 
992 static void
993 print_flags(const struct flags *f, abi_long flags, int last)
994 {
995     const char *sep = "";
996     int n;
997 
998     if ((flags == 0) && (f->f_value == 0)) {
999         gemu_log("%s%s", f->f_string, get_comma(last));
1000         return;
1001     }
1002     for (n = 0; f->f_string != NULL; f++) {
1003         if ((f->f_value != 0) && ((flags & f->f_value) == f->f_value)) {
1004             gemu_log("%s%s", sep, f->f_string);
1005             flags &= ~f->f_value;
1006             sep = "|";
1007             n++;
1008         }
1009     }
1010 
1011     if (n > 0) {
1012         /* print rest of the flags as numeric */
1013         if (flags != 0) {
1014             gemu_log("%s%#x%s", sep, (unsigned int)flags, get_comma(last));
1015         } else {
1016             gemu_log("%s", get_comma(last));
1017         }
1018     } else {
1019         /* no string version of flags found, print them in hex then */
1020         gemu_log("%#x%s", (unsigned int)flags, get_comma(last));
1021     }
1022 }
1023 
1024 static void
1025 print_at_dirfd(abi_long dirfd, int last)
1026 {
1027 #ifdef AT_FDCWD
1028     if (dirfd == AT_FDCWD) {
1029         gemu_log("AT_FDCWD%s", get_comma(last));
1030         return;
1031     }
1032 #endif
1033     gemu_log("%d%s", (int)dirfd, get_comma(last));
1034 }
1035 
1036 static void
1037 print_file_mode(abi_long mode, int last)
1038 {
1039     const char *sep = "";
1040     const struct flags *m;
1041 
1042     for (m = &mode_flags[0]; m->f_string != NULL; m++) {
1043         if ((m->f_value & mode) == m->f_value) {
1044             gemu_log("%s%s", m->f_string, sep);
1045             sep = "|";
1046             mode &= ~m->f_value;
1047             break;
1048         }
1049     }
1050 
1051     mode &= ~S_IFMT;
1052     /* print rest of the mode as octal */
1053     if (mode != 0)
1054         gemu_log("%s%#o", sep, (unsigned int)mode);
1055 
1056     gemu_log("%s", get_comma(last));
1057 }
1058 
1059 static void
1060 print_open_flags(abi_long flags, int last)
1061 {
1062     print_flags(open_access_flags, flags & TARGET_O_ACCMODE, 1);
1063     flags &= ~TARGET_O_ACCMODE;
1064     if (flags == 0) {
1065         gemu_log("%s", get_comma(last));
1066         return;
1067     }
1068     gemu_log("|");
1069     print_flags(open_flags, flags, last);
1070 }
1071 
1072 static void
1073 print_syscall_prologue(const struct syscallname *sc)
1074 {
1075     gemu_log("%s(", sc->name);
1076 }
1077 
1078 /*ARGSUSED*/
1079 static void
1080 print_syscall_epilogue(const struct syscallname *sc)
1081 {
1082     (void)sc;
1083     gemu_log(")");
1084 }
1085 
1086 static void
1087 print_string(abi_long addr, int last)
1088 {
1089     char *s;
1090 
1091     if ((s = lock_user_string(addr)) != NULL) {
1092         gemu_log("\"%s\"%s", s, get_comma(last));
1093         unlock_user(s, addr, 0);
1094     } else {
1095         /* can't get string out of it, so print it as pointer */
1096         print_pointer(addr, last);
1097     }
1098 }
1099 
1100 #define MAX_PRINT_BUF 40
1101 static void
1102 print_buf(abi_long addr, abi_long len, int last)
1103 {
1104     uint8_t *s;
1105     int i;
1106 
1107     s = lock_user(VERIFY_READ, addr, len, 1);
1108     if (s) {
1109         gemu_log("\"");
1110         for (i = 0; i < MAX_PRINT_BUF && i < len; i++) {
1111             if (isprint(s[i])) {
1112                 gemu_log("%c", s[i]);
1113             } else {
1114                 gemu_log("\\%o", s[i]);
1115             }
1116         }
1117         gemu_log("\"");
1118         if (i != len) {
1119             gemu_log("...");
1120         }
1121         if (!last) {
1122             gemu_log(",");
1123         }
1124         unlock_user(s, addr, 0);
1125     } else {
1126         print_pointer(addr, last);
1127     }
1128 }
1129 
1130 /*
1131  * Prints out raw parameter using given format.  Caller needs
1132  * to do byte swapping if needed.
1133  */
1134 static void
1135 print_raw_param(const char *fmt, abi_long param, int last)
1136 {
1137     char format[64];
1138 
1139     (void) snprintf(format, sizeof (format), "%s%s", fmt, get_comma(last));
1140     gemu_log(format, param);
1141 }
1142 
1143 static void
1144 print_pointer(abi_long p, int last)
1145 {
1146     if (p == 0)
1147         gemu_log("NULL%s", get_comma(last));
1148     else
1149         gemu_log("0x" TARGET_ABI_FMT_lx "%s", p, get_comma(last));
1150 }
1151 
1152 /*
1153  * Reads 32-bit (int) number from guest address space from
1154  * address 'addr' and prints it.
1155  */
1156 static void
1157 print_number(abi_long addr, int last)
1158 {
1159     if (addr == 0) {
1160         gemu_log("NULL%s", get_comma(last));
1161     } else {
1162         int num;
1163 
1164         get_user_s32(num, addr);
1165         gemu_log("[%d]%s", num, get_comma(last));
1166     }
1167 }
1168 
1169 static void
1170 print_timeval(abi_ulong tv_addr, int last)
1171 {
1172     if( tv_addr ) {
1173         struct target_timeval *tv;
1174 
1175         tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1);
1176         if (!tv)
1177             return;
1178         gemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s",
1179             tswapal(tv->tv_sec), tswapal(tv->tv_usec), get_comma(last));
1180         unlock_user(tv, tv_addr, 0);
1181     } else
1182         gemu_log("NULL%s", get_comma(last));
1183 }
1184 
1185 #undef UNUSED
1186 
1187 #ifdef TARGET_NR_accept
1188 static void
1189 print_accept(const struct syscallname *name,
1190     abi_long arg0, abi_long arg1, abi_long arg2,
1191     abi_long arg3, abi_long arg4, abi_long arg5)
1192 {
1193     print_syscall_prologue(name);
1194     print_raw_param("%d", arg0, 0);
1195     print_pointer(arg1, 0);
1196     print_number(arg2, 1);
1197     print_syscall_epilogue(name);
1198 }
1199 #endif
1200 
1201 #ifdef TARGET_NR_access
1202 static void
1203 print_access(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_string(arg0, 0);
1209     print_flags(access_flags, arg1, 1);
1210     print_syscall_epilogue(name);
1211 }
1212 #endif
1213 
1214 #ifdef TARGET_NR_brk
1215 static void
1216 print_brk(const struct syscallname *name,
1217     abi_long arg0, abi_long arg1, abi_long arg2,
1218     abi_long arg3, abi_long arg4, abi_long arg5)
1219 {
1220     print_syscall_prologue(name);
1221     print_pointer(arg0, 1);
1222     print_syscall_epilogue(name);
1223 }
1224 #endif
1225 
1226 #ifdef TARGET_NR_chdir
1227 static void
1228 print_chdir(const struct syscallname *name,
1229     abi_long arg0, abi_long arg1, abi_long arg2,
1230     abi_long arg3, abi_long arg4, abi_long arg5)
1231 {
1232     print_syscall_prologue(name);
1233     print_string(arg0, 1);
1234     print_syscall_epilogue(name);
1235 }
1236 #endif
1237 
1238 #ifdef TARGET_NR_chmod
1239 static void
1240 print_chmod(const struct syscallname *name,
1241     abi_long arg0, abi_long arg1, abi_long arg2,
1242     abi_long arg3, abi_long arg4, abi_long arg5)
1243 {
1244     print_syscall_prologue(name);
1245     print_string(arg0, 0);
1246     print_file_mode(arg1, 1);
1247     print_syscall_epilogue(name);
1248 }
1249 #endif
1250 
1251 #ifdef TARGET_NR_clock_adjtime
1252 static void
1253 print_clock_adjtime(const struct syscallname *name,
1254     abi_long arg0, abi_long arg1, abi_long arg2,
1255     abi_long arg3, abi_long arg4, abi_long arg5)
1256 {
1257     print_syscall_prologue(name);
1258     print_clockid(arg0, 0);
1259     print_pointer(arg1, 1);
1260     print_syscall_epilogue(name);
1261 }
1262 #endif
1263 
1264 #ifdef TARGET_NR_clone
1265 static void do_print_clone(unsigned int flags, abi_ulong newsp,
1266                            abi_ulong parent_tidptr, target_ulong newtls,
1267                            abi_ulong child_tidptr)
1268 {
1269     print_flags(clone_flags, flags, 0);
1270     print_raw_param("child_stack=0x" TARGET_ABI_FMT_lx, newsp, 0);
1271     print_raw_param("parent_tidptr=0x" TARGET_ABI_FMT_lx, parent_tidptr, 0);
1272     print_raw_param("tls=0x" TARGET_ABI_FMT_lx, newtls, 0);
1273     print_raw_param("child_tidptr=0x" TARGET_ABI_FMT_lx, child_tidptr, 1);
1274 }
1275 
1276 static void
1277 print_clone(const struct syscallname *name,
1278     abi_long arg1, abi_long arg2, abi_long arg3,
1279     abi_long arg4, abi_long arg5, abi_long arg6)
1280 {
1281     print_syscall_prologue(name);
1282 #if defined(TARGET_MICROBLAZE)
1283     do_print_clone(arg1, arg2, arg4, arg6, arg5);
1284 #elif defined(TARGET_CLONE_BACKWARDS)
1285     do_print_clone(arg1, arg2, arg3, arg4, arg5);
1286 #elif defined(TARGET_CLONE_BACKWARDS2)
1287     do_print_clone(arg2, arg1, arg3, arg5, arg4);
1288 #else
1289     do_print_clone(arg1, arg2, arg3, arg5, arg4);
1290 #endif
1291     print_syscall_epilogue(name);
1292 }
1293 #endif
1294 
1295 #ifdef TARGET_NR_creat
1296 static void
1297 print_creat(const struct syscallname *name,
1298     abi_long arg0, abi_long arg1, abi_long arg2,
1299     abi_long arg3, abi_long arg4, abi_long arg5)
1300 {
1301     print_syscall_prologue(name);
1302     print_string(arg0, 0);
1303     print_file_mode(arg1, 1);
1304     print_syscall_epilogue(name);
1305 }
1306 #endif
1307 
1308 #ifdef TARGET_NR_execv
1309 static void
1310 print_execv(const struct syscallname *name,
1311     abi_long arg0, abi_long arg1, abi_long arg2,
1312     abi_long arg3, abi_long arg4, abi_long arg5)
1313 {
1314     print_syscall_prologue(name);
1315     print_string(arg0, 0);
1316     print_raw_param("0x" TARGET_ABI_FMT_lx, arg1, 1);
1317     print_syscall_epilogue(name);
1318 }
1319 #endif
1320 
1321 #ifdef TARGET_NR_faccessat
1322 static void
1323 print_faccessat(const struct syscallname *name,
1324     abi_long arg0, abi_long arg1, abi_long arg2,
1325     abi_long arg3, abi_long arg4, abi_long arg5)
1326 {
1327     print_syscall_prologue(name);
1328     print_at_dirfd(arg0, 0);
1329     print_string(arg1, 0);
1330     print_flags(access_flags, arg2, 0);
1331     print_flags(at_file_flags, arg3, 1);
1332     print_syscall_epilogue(name);
1333 }
1334 #endif
1335 
1336 #ifdef TARGET_NR_fchmodat
1337 static void
1338 print_fchmodat(const struct syscallname *name,
1339     abi_long arg0, abi_long arg1, abi_long arg2,
1340     abi_long arg3, abi_long arg4, abi_long arg5)
1341 {
1342     print_syscall_prologue(name);
1343     print_at_dirfd(arg0, 0);
1344     print_string(arg1, 0);
1345     print_file_mode(arg2, 0);
1346     print_flags(at_file_flags, arg3, 1);
1347     print_syscall_epilogue(name);
1348 }
1349 #endif
1350 
1351 #ifdef TARGET_NR_fchownat
1352 static void
1353 print_fchownat(const struct syscallname *name,
1354     abi_long arg0, abi_long arg1, abi_long arg2,
1355     abi_long arg3, abi_long arg4, abi_long arg5)
1356 {
1357     print_syscall_prologue(name);
1358     print_at_dirfd(arg0, 0);
1359     print_string(arg1, 0);
1360     print_raw_param("%d", arg2, 0);
1361     print_raw_param("%d", arg3, 0);
1362     print_flags(at_file_flags, arg4, 1);
1363     print_syscall_epilogue(name);
1364 }
1365 #endif
1366 
1367 #if defined(TARGET_NR_fcntl) || defined(TARGET_NR_fcntl64)
1368 static void
1369 print_fcntl(const struct syscallname *name,
1370     abi_long arg0, abi_long arg1, abi_long arg2,
1371     abi_long arg3, abi_long arg4, abi_long arg5)
1372 {
1373     print_syscall_prologue(name);
1374     print_raw_param("%d", arg0, 0);
1375     switch(arg1) {
1376     case TARGET_F_DUPFD:
1377         gemu_log("F_DUPFD,");
1378         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1379         break;
1380     case TARGET_F_GETFD:
1381         gemu_log("F_GETFD");
1382         break;
1383     case TARGET_F_SETFD:
1384         gemu_log("F_SETFD,");
1385         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1386         break;
1387     case TARGET_F_GETFL:
1388         gemu_log("F_GETFL");
1389         break;
1390     case TARGET_F_SETFL:
1391         gemu_log("F_SETFL,");
1392         print_open_flags(arg2, 1);
1393         break;
1394     case TARGET_F_GETLK:
1395         gemu_log("F_GETLK,");
1396         print_pointer(arg2, 1);
1397         break;
1398     case TARGET_F_SETLK:
1399         gemu_log("F_SETLK,");
1400         print_pointer(arg2, 1);
1401         break;
1402     case TARGET_F_SETLKW:
1403         gemu_log("F_SETLKW,");
1404         print_pointer(arg2, 1);
1405         break;
1406     case TARGET_F_GETOWN:
1407         gemu_log("F_GETOWN");
1408         break;
1409     case TARGET_F_SETOWN:
1410         gemu_log("F_SETOWN,");
1411         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1412         break;
1413     case TARGET_F_GETSIG:
1414         gemu_log("F_GETSIG");
1415         break;
1416     case TARGET_F_SETSIG:
1417         gemu_log("F_SETSIG,");
1418         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1419         break;
1420 #if TARGET_ABI_BITS == 32
1421     case TARGET_F_GETLK64:
1422         gemu_log("F_GETLK64,");
1423         print_pointer(arg2, 1);
1424         break;
1425     case TARGET_F_SETLK64:
1426         gemu_log("F_SETLK64,");
1427         print_pointer(arg2, 1);
1428         break;
1429     case TARGET_F_SETLKW64:
1430         gemu_log("F_SETLKW64,");
1431         print_pointer(arg2, 1);
1432         break;
1433 #endif
1434     case TARGET_F_SETLEASE:
1435         gemu_log("F_SETLEASE,");
1436         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1437         break;
1438     case TARGET_F_GETLEASE:
1439         gemu_log("F_GETLEASE");
1440         break;
1441     case TARGET_F_SETPIPE_SZ:
1442         gemu_log("F_SETPIPE_SZ,");
1443         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1444         break;
1445     case TARGET_F_GETPIPE_SZ:
1446         gemu_log("F_GETPIPE_SZ");
1447         break;
1448     case TARGET_F_DUPFD_CLOEXEC:
1449         gemu_log("F_DUPFD_CLOEXEC,");
1450         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1451         break;
1452     case TARGET_F_NOTIFY:
1453         gemu_log("F_NOTIFY,");
1454         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1455         break;
1456     default:
1457         print_raw_param(TARGET_ABI_FMT_ld, arg1, 0);
1458         print_pointer(arg2, 1);
1459         break;
1460     }
1461     print_syscall_epilogue(name);
1462 }
1463 #define print_fcntl64   print_fcntl
1464 #endif
1465 
1466 
1467 #ifdef TARGET_NR_futimesat
1468 static void
1469 print_futimesat(const struct syscallname *name,
1470     abi_long arg0, abi_long arg1, abi_long arg2,
1471     abi_long arg3, abi_long arg4, abi_long arg5)
1472 {
1473     print_syscall_prologue(name);
1474     print_at_dirfd(arg0, 0);
1475     print_string(arg1, 0);
1476     print_timeval(arg2, 0);
1477     print_timeval(arg2 + sizeof (struct target_timeval), 1);
1478     print_syscall_epilogue(name);
1479 }
1480 #endif
1481 
1482 #ifdef TARGET_NR_link
1483 static void
1484 print_link(const struct syscallname *name,
1485     abi_long arg0, abi_long arg1, abi_long arg2,
1486     abi_long arg3, abi_long arg4, abi_long arg5)
1487 {
1488     print_syscall_prologue(name);
1489     print_string(arg0, 0);
1490     print_string(arg1, 1);
1491     print_syscall_epilogue(name);
1492 }
1493 #endif
1494 
1495 #ifdef TARGET_NR_linkat
1496 static void
1497 print_linkat(const struct syscallname *name,
1498     abi_long arg0, abi_long arg1, abi_long arg2,
1499     abi_long arg3, abi_long arg4, abi_long arg5)
1500 {
1501     print_syscall_prologue(name);
1502     print_at_dirfd(arg0, 0);
1503     print_string(arg1, 0);
1504     print_at_dirfd(arg2, 0);
1505     print_string(arg3, 0);
1506     print_flags(at_file_flags, arg4, 1);
1507     print_syscall_epilogue(name);
1508 }
1509 #endif
1510 
1511 #ifdef TARGET_NR__llseek
1512 static void
1513 print__llseek(const struct syscallname *name,
1514     abi_long arg0, abi_long arg1, abi_long arg2,
1515     abi_long arg3, abi_long arg4, abi_long arg5)
1516 {
1517     const char *whence = "UNKNOWN";
1518     print_syscall_prologue(name);
1519     print_raw_param("%d", arg0, 0);
1520     print_raw_param("%ld", arg1, 0);
1521     print_raw_param("%ld", arg2, 0);
1522     print_pointer(arg3, 0);
1523     switch(arg4) {
1524     case SEEK_SET: whence = "SEEK_SET"; break;
1525     case SEEK_CUR: whence = "SEEK_CUR"; break;
1526     case SEEK_END: whence = "SEEK_END"; break;
1527     }
1528     gemu_log("%s",whence);
1529     print_syscall_epilogue(name);
1530 }
1531 #endif
1532 
1533 #if defined(TARGET_NR_socket)
1534 static void
1535 print_socket(const struct syscallname *name,
1536              abi_long arg0, abi_long arg1, abi_long arg2,
1537              abi_long arg3, abi_long arg4, abi_long arg5)
1538 {
1539     abi_ulong domain = arg0, type = arg1, protocol = arg2;
1540 
1541     print_syscall_prologue(name);
1542     print_socket_domain(domain);
1543     gemu_log(",");
1544     print_socket_type(type);
1545     gemu_log(",");
1546     if (domain == AF_PACKET ||
1547         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
1548         protocol = tswap16(protocol);
1549     }
1550     print_socket_protocol(domain, type, protocol);
1551     print_syscall_epilogue(name);
1552 }
1553 
1554 #endif
1555 
1556 #if defined(TARGET_NR_socketcall)
1557 
1558 #define get_user_ualx(x, gaddr, idx) \
1559         get_user_ual(x, (gaddr) + (idx) * sizeof(abi_long))
1560 
1561 static void do_print_socket(const char *name, abi_long arg1)
1562 {
1563     abi_ulong domain, type, protocol;
1564 
1565     get_user_ualx(domain, arg1, 0);
1566     get_user_ualx(type, arg1, 1);
1567     get_user_ualx(protocol, arg1, 2);
1568     gemu_log("%s(", name);
1569     print_socket_domain(domain);
1570     gemu_log(",");
1571     print_socket_type(type);
1572     gemu_log(",");
1573     if (domain == AF_PACKET ||
1574         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
1575         protocol = tswap16(protocol);
1576     }
1577     print_socket_protocol(domain, type, protocol);
1578     gemu_log(")");
1579 }
1580 
1581 static void do_print_sockaddr(const char *name, abi_long arg1)
1582 {
1583     abi_ulong sockfd, addr, addrlen;
1584 
1585     get_user_ualx(sockfd, arg1, 0);
1586     get_user_ualx(addr, arg1, 1);
1587     get_user_ualx(addrlen, arg1, 2);
1588 
1589     gemu_log("%s(", name);
1590     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1591     print_sockaddr(addr, addrlen);
1592     gemu_log(")");
1593 }
1594 
1595 static void do_print_listen(const char *name, abi_long arg1)
1596 {
1597     abi_ulong sockfd, backlog;
1598 
1599     get_user_ualx(sockfd, arg1, 0);
1600     get_user_ualx(backlog, arg1, 1);
1601 
1602     gemu_log("%s(", name);
1603     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1604     print_raw_param(TARGET_ABI_FMT_ld, backlog, 1);
1605     gemu_log(")");
1606 }
1607 
1608 static void do_print_socketpair(const char *name, abi_long arg1)
1609 {
1610     abi_ulong domain, type, protocol, tab;
1611 
1612     get_user_ualx(domain, arg1, 0);
1613     get_user_ualx(type, arg1, 1);
1614     get_user_ualx(protocol, arg1, 2);
1615     get_user_ualx(tab, arg1, 3);
1616 
1617     gemu_log("%s(", name);
1618     print_socket_domain(domain);
1619     gemu_log(",");
1620     print_socket_type(type);
1621     gemu_log(",");
1622     print_socket_protocol(domain, type, protocol);
1623     gemu_log(",");
1624     print_raw_param(TARGET_ABI_FMT_lx, tab, 1);
1625     gemu_log(")");
1626 }
1627 
1628 static void do_print_sendrecv(const char *name, abi_long arg1)
1629 {
1630     abi_ulong sockfd, msg, len, flags;
1631 
1632     get_user_ualx(sockfd, arg1, 0);
1633     get_user_ualx(msg, arg1, 1);
1634     get_user_ualx(len, arg1, 2);
1635     get_user_ualx(flags, arg1, 3);
1636 
1637     gemu_log("%s(", name);
1638     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1639     print_buf(msg, len, 0);
1640     print_raw_param(TARGET_ABI_FMT_ld, len, 0);
1641     print_flags(msg_flags, flags, 1);
1642     gemu_log(")");
1643 }
1644 
1645 static void do_print_msgaddr(const char *name, abi_long arg1)
1646 {
1647     abi_ulong sockfd, msg, len, flags, addr, addrlen;
1648 
1649     get_user_ualx(sockfd, arg1, 0);
1650     get_user_ualx(msg, arg1, 1);
1651     get_user_ualx(len, arg1, 2);
1652     get_user_ualx(flags, arg1, 3);
1653     get_user_ualx(addr, arg1, 4);
1654     get_user_ualx(addrlen, arg1, 5);
1655 
1656     gemu_log("%s(", name);
1657     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1658     print_buf(msg, len, 0);
1659     print_raw_param(TARGET_ABI_FMT_ld, len, 0);
1660     print_flags(msg_flags, flags, 0);
1661     print_sockaddr(addr, addrlen);
1662     gemu_log(")");
1663 }
1664 
1665 static void do_print_shutdown(const char *name, abi_long arg1)
1666 {
1667     abi_ulong sockfd, how;
1668 
1669     get_user_ualx(sockfd, arg1, 0);
1670     get_user_ualx(how, arg1, 1);
1671 
1672     gemu_log("shutdown(");
1673     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1674     switch (how) {
1675     case SHUT_RD:
1676         gemu_log("SHUT_RD");
1677         break;
1678     case SHUT_WR:
1679         gemu_log("SHUT_WR");
1680         break;
1681     case SHUT_RDWR:
1682         gemu_log("SHUT_RDWR");
1683         break;
1684     default:
1685         print_raw_param(TARGET_ABI_FMT_ld, how, 1);
1686         break;
1687     }
1688     gemu_log(")");
1689 }
1690 
1691 static void do_print_msg(const char *name, abi_long arg1)
1692 {
1693     abi_ulong sockfd, msg, flags;
1694 
1695     get_user_ualx(sockfd, arg1, 0);
1696     get_user_ualx(msg, arg1, 1);
1697     get_user_ualx(flags, arg1, 2);
1698 
1699     gemu_log("%s(", name);
1700     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1701     print_pointer(msg, 0);
1702     print_flags(msg_flags, flags, 1);
1703     gemu_log(")");
1704 }
1705 
1706 static void do_print_sockopt(const char *name, abi_long arg1)
1707 {
1708     abi_ulong sockfd, level, optname, optval, optlen;
1709 
1710     get_user_ualx(sockfd, arg1, 0);
1711     get_user_ualx(level, arg1, 1);
1712     get_user_ualx(optname, arg1, 2);
1713     get_user_ualx(optval, arg1, 3);
1714     get_user_ualx(optlen, arg1, 4);
1715 
1716     gemu_log("%s(", name);
1717     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1718     switch (level) {
1719     case SOL_TCP:
1720         gemu_log("SOL_TCP,");
1721         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1722         print_pointer(optval, 0);
1723         break;
1724     case SOL_IP:
1725         gemu_log("SOL_IP,");
1726         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1727         print_pointer(optval, 0);
1728         break;
1729     case SOL_RAW:
1730         gemu_log("SOL_RAW,");
1731         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1732         print_pointer(optval, 0);
1733         break;
1734     case TARGET_SOL_SOCKET:
1735         gemu_log("SOL_SOCKET,");
1736         switch (optname) {
1737         case TARGET_SO_DEBUG:
1738             gemu_log("SO_DEBUG,");
1739 print_optint:
1740             print_number(optval, 0);
1741             break;
1742         case TARGET_SO_REUSEADDR:
1743             gemu_log("SO_REUSEADDR,");
1744             goto print_optint;
1745         case TARGET_SO_TYPE:
1746             gemu_log("SO_TYPE,");
1747             goto print_optint;
1748         case TARGET_SO_ERROR:
1749             gemu_log("SO_ERROR,");
1750             goto print_optint;
1751         case TARGET_SO_DONTROUTE:
1752             gemu_log("SO_DONTROUTE,");
1753             goto print_optint;
1754         case TARGET_SO_BROADCAST:
1755             gemu_log("SO_BROADCAST,");
1756             goto print_optint;
1757         case TARGET_SO_SNDBUF:
1758             gemu_log("SO_SNDBUF,");
1759             goto print_optint;
1760         case TARGET_SO_RCVBUF:
1761             gemu_log("SO_RCVBUF,");
1762             goto print_optint;
1763         case TARGET_SO_KEEPALIVE:
1764             gemu_log("SO_KEEPALIVE,");
1765             goto print_optint;
1766         case TARGET_SO_OOBINLINE:
1767             gemu_log("SO_OOBINLINE,");
1768             goto print_optint;
1769         case TARGET_SO_NO_CHECK:
1770             gemu_log("SO_NO_CHECK,");
1771             goto print_optint;
1772         case TARGET_SO_PRIORITY:
1773             gemu_log("SO_PRIORITY,");
1774             goto print_optint;
1775         case TARGET_SO_BSDCOMPAT:
1776             gemu_log("SO_BSDCOMPAT,");
1777             goto print_optint;
1778         case TARGET_SO_PASSCRED:
1779             gemu_log("SO_PASSCRED,");
1780             goto print_optint;
1781         case TARGET_SO_TIMESTAMP:
1782             gemu_log("SO_TIMESTAMP,");
1783             goto print_optint;
1784         case TARGET_SO_RCVLOWAT:
1785             gemu_log("SO_RCVLOWAT,");
1786             goto print_optint;
1787         case TARGET_SO_RCVTIMEO:
1788             gemu_log("SO_RCVTIMEO,");
1789             print_timeval(optval, 0);
1790             break;
1791         case TARGET_SO_SNDTIMEO:
1792             gemu_log("SO_SNDTIMEO,");
1793             print_timeval(optval, 0);
1794             break;
1795         case TARGET_SO_ATTACH_FILTER: {
1796             struct target_sock_fprog *fprog;
1797 
1798             gemu_log("SO_ATTACH_FILTER,");
1799 
1800             if (lock_user_struct(VERIFY_READ, fprog, optval,  0)) {
1801                 struct target_sock_filter *filter;
1802                 gemu_log("{");
1803                 if (lock_user_struct(VERIFY_READ, filter,
1804                                      tswapal(fprog->filter),  0)) {
1805                     int i;
1806                     for (i = 0; i < tswap16(fprog->len) - 1; i++) {
1807                         gemu_log("[%d]{0x%x,%d,%d,0x%x},",
1808                                  i, tswap16(filter[i].code),
1809                                  filter[i].jt, filter[i].jf,
1810                                  tswap32(filter[i].k));
1811                     }
1812                     gemu_log("[%d]{0x%x,%d,%d,0x%x}",
1813                              i, tswap16(filter[i].code),
1814                              filter[i].jt, filter[i].jf,
1815                              tswap32(filter[i].k));
1816                 } else {
1817                     gemu_log(TARGET_ABI_FMT_lx, tswapal(fprog->filter));
1818                 }
1819                 gemu_log(",%d},", tswap16(fprog->len));
1820                 unlock_user(fprog, optval, 0);
1821             } else {
1822                 print_pointer(optval, 0);
1823             }
1824             break;
1825         }
1826         default:
1827             print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1828             print_pointer(optval, 0);
1829             break;
1830         }
1831         break;
1832     default:
1833         print_raw_param(TARGET_ABI_FMT_ld, level, 0);
1834         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1835         print_pointer(optval, 0);
1836         break;
1837     }
1838     print_raw_param(TARGET_ABI_FMT_ld, optlen, 1);
1839     gemu_log(")");
1840 }
1841 
1842 #define PRINT_SOCKOP(name, func) \
1843     [TARGET_SYS_##name] = { #name, func }
1844 
1845 static struct {
1846     const char *name;
1847     void (*print)(const char *, abi_long);
1848 } scall[] = {
1849     PRINT_SOCKOP(SOCKET, do_print_socket),
1850     PRINT_SOCKOP(BIND, do_print_sockaddr),
1851     PRINT_SOCKOP(CONNECT, do_print_sockaddr),
1852     PRINT_SOCKOP(LISTEN, do_print_listen),
1853     PRINT_SOCKOP(ACCEPT, do_print_sockaddr),
1854     PRINT_SOCKOP(GETSOCKNAME, do_print_sockaddr),
1855     PRINT_SOCKOP(GETPEERNAME, do_print_sockaddr),
1856     PRINT_SOCKOP(SOCKETPAIR, do_print_socketpair),
1857     PRINT_SOCKOP(SEND, do_print_sendrecv),
1858     PRINT_SOCKOP(RECV, do_print_sendrecv),
1859     PRINT_SOCKOP(SENDTO, do_print_msgaddr),
1860     PRINT_SOCKOP(RECVFROM, do_print_msgaddr),
1861     PRINT_SOCKOP(SHUTDOWN, do_print_shutdown),
1862     PRINT_SOCKOP(SETSOCKOPT, do_print_sockopt),
1863     PRINT_SOCKOP(GETSOCKOPT, do_print_sockopt),
1864     PRINT_SOCKOP(SENDMSG, do_print_msg),
1865     PRINT_SOCKOP(RECVMSG, do_print_msg),
1866     PRINT_SOCKOP(ACCEPT4, NULL),
1867     PRINT_SOCKOP(RECVMMSG, NULL),
1868     PRINT_SOCKOP(SENDMMSG, NULL),
1869 };
1870 
1871 static void
1872 print_socketcall(const struct syscallname *name,
1873                  abi_long arg0, abi_long arg1, abi_long arg2,
1874                  abi_long arg3, abi_long arg4, abi_long arg5)
1875 {
1876     if (arg0 >= 0 && arg0 < ARRAY_SIZE(scall) && scall[arg0].print) {
1877         scall[arg0].print(scall[arg0].name, arg1);
1878         return;
1879     }
1880     print_syscall_prologue(name);
1881     print_raw_param(TARGET_ABI_FMT_ld, arg0, 0);
1882     print_raw_param(TARGET_ABI_FMT_ld, arg1, 0);
1883     print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1884     print_raw_param(TARGET_ABI_FMT_ld, arg3, 0);
1885     print_raw_param(TARGET_ABI_FMT_ld, arg4, 0);
1886     print_raw_param(TARGET_ABI_FMT_ld, arg5, 0);
1887     print_syscall_epilogue(name);
1888 }
1889 #endif
1890 
1891 #if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) || \
1892     defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64)
1893 static void
1894 print_stat(const struct syscallname *name,
1895     abi_long arg0, abi_long arg1, abi_long arg2,
1896     abi_long arg3, abi_long arg4, abi_long arg5)
1897 {
1898     print_syscall_prologue(name);
1899     print_string(arg0, 0);
1900     print_pointer(arg1, 1);
1901     print_syscall_epilogue(name);
1902 }
1903 #define print_lstat     print_stat
1904 #define print_stat64	print_stat
1905 #define print_lstat64   print_stat
1906 #endif
1907 
1908 #if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
1909 static void
1910 print_fstat(const struct syscallname *name,
1911     abi_long arg0, abi_long arg1, abi_long arg2,
1912     abi_long arg3, abi_long arg4, abi_long arg5)
1913 {
1914     print_syscall_prologue(name);
1915     print_raw_param("%d", arg0, 0);
1916     print_pointer(arg1, 1);
1917     print_syscall_epilogue(name);
1918 }
1919 #define print_fstat64     print_fstat
1920 #endif
1921 
1922 #ifdef TARGET_NR_mkdir
1923 static void
1924 print_mkdir(const struct syscallname *name,
1925     abi_long arg0, abi_long arg1, abi_long arg2,
1926     abi_long arg3, abi_long arg4, abi_long arg5)
1927 {
1928     print_syscall_prologue(name);
1929     print_string(arg0, 0);
1930     print_file_mode(arg1, 1);
1931     print_syscall_epilogue(name);
1932 }
1933 #endif
1934 
1935 #ifdef TARGET_NR_mkdirat
1936 static void
1937 print_mkdirat(const struct syscallname *name,
1938     abi_long arg0, abi_long arg1, abi_long arg2,
1939     abi_long arg3, abi_long arg4, abi_long arg5)
1940 {
1941     print_syscall_prologue(name);
1942     print_at_dirfd(arg0, 0);
1943     print_string(arg1, 0);
1944     print_file_mode(arg2, 1);
1945     print_syscall_epilogue(name);
1946 }
1947 #endif
1948 
1949 #ifdef TARGET_NR_rmdir
1950 static void
1951 print_rmdir(const struct syscallname *name,
1952     abi_long arg0, abi_long arg1, abi_long arg2,
1953     abi_long arg3, abi_long arg4, abi_long arg5)
1954 {
1955     print_syscall_prologue(name);
1956     print_string(arg0, 0);
1957     print_syscall_epilogue(name);
1958 }
1959 #endif
1960 
1961 #ifdef TARGET_NR_rt_sigaction
1962 static void
1963 print_rt_sigaction(const struct syscallname *name,
1964     abi_long arg0, abi_long arg1, abi_long arg2,
1965     abi_long arg3, abi_long arg4, abi_long arg5)
1966 {
1967     print_syscall_prologue(name);
1968     print_signal(arg0, 0);
1969     print_pointer(arg1, 0);
1970     print_pointer(arg2, 1);
1971     print_syscall_epilogue(name);
1972 }
1973 #endif
1974 
1975 #ifdef TARGET_NR_rt_sigprocmask
1976 static void
1977 print_rt_sigprocmask(const struct syscallname *name,
1978     abi_long arg0, abi_long arg1, abi_long arg2,
1979     abi_long arg3, abi_long arg4, abi_long arg5)
1980 {
1981     const char *how = "UNKNOWN";
1982     print_syscall_prologue(name);
1983     switch(arg0) {
1984     case TARGET_SIG_BLOCK: how = "SIG_BLOCK"; break;
1985     case TARGET_SIG_UNBLOCK: how = "SIG_UNBLOCK"; break;
1986     case TARGET_SIG_SETMASK: how = "SIG_SETMASK"; break;
1987     }
1988     gemu_log("%s,",how);
1989     print_pointer(arg1, 0);
1990     print_pointer(arg2, 1);
1991     print_syscall_epilogue(name);
1992 }
1993 #endif
1994 
1995 #ifdef TARGET_NR_rt_sigqueueinfo
1996 static void
1997 print_rt_sigqueueinfo(const struct syscallname *name,
1998     abi_long arg0, abi_long arg1, abi_long arg2,
1999     abi_long arg3, abi_long arg4, abi_long arg5)
2000 {
2001     void *p;
2002     target_siginfo_t uinfo;
2003 
2004     print_syscall_prologue(name);
2005     print_raw_param("%d", arg0, 0);
2006     print_signal(arg1, 0);
2007     p = lock_user(VERIFY_READ, arg2, sizeof(target_siginfo_t), 1);
2008     if (p) {
2009         get_target_siginfo(&uinfo, p);
2010         print_siginfo(&uinfo);
2011 
2012         unlock_user(p, arg2, 0);
2013     } else {
2014         print_pointer(arg2, 1);
2015     }
2016     print_syscall_epilogue(name);
2017 }
2018 #endif
2019 
2020 #ifdef TARGET_NR_rt_tgsigqueueinfo
2021 static void
2022 print_rt_tgsigqueueinfo(const struct syscallname *name,
2023     abi_long arg0, abi_long arg1, abi_long arg2,
2024     abi_long arg3, abi_long arg4, abi_long arg5)
2025 {
2026     void *p;
2027     target_siginfo_t uinfo;
2028 
2029     print_syscall_prologue(name);
2030     print_raw_param("%d", arg0, 0);
2031     print_raw_param("%d", arg1, 0);
2032     print_signal(arg2, 0);
2033     p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
2034     if (p) {
2035         get_target_siginfo(&uinfo, p);
2036         print_siginfo(&uinfo);
2037 
2038         unlock_user(p, arg3, 0);
2039     } else {
2040         print_pointer(arg3, 1);
2041     }
2042     print_syscall_epilogue(name);
2043 }
2044 #endif
2045 
2046 #ifdef TARGET_NR_syslog
2047 static void
2048 print_syslog_action(abi_ulong arg, int last)
2049 {
2050     const char *type;
2051 
2052     switch (arg) {
2053         case TARGET_SYSLOG_ACTION_CLOSE: {
2054             type = "SYSLOG_ACTION_CLOSE";
2055             break;
2056         }
2057         case TARGET_SYSLOG_ACTION_OPEN: {
2058             type = "SYSLOG_ACTION_OPEN";
2059             break;
2060         }
2061         case TARGET_SYSLOG_ACTION_READ: {
2062             type = "SYSLOG_ACTION_READ";
2063             break;
2064         }
2065         case TARGET_SYSLOG_ACTION_READ_ALL: {
2066             type = "SYSLOG_ACTION_READ_ALL";
2067             break;
2068         }
2069         case TARGET_SYSLOG_ACTION_READ_CLEAR: {
2070             type = "SYSLOG_ACTION_READ_CLEAR";
2071             break;
2072         }
2073         case TARGET_SYSLOG_ACTION_CLEAR: {
2074             type = "SYSLOG_ACTION_CLEAR";
2075             break;
2076         }
2077         case TARGET_SYSLOG_ACTION_CONSOLE_OFF: {
2078             type = "SYSLOG_ACTION_CONSOLE_OFF";
2079             break;
2080         }
2081         case TARGET_SYSLOG_ACTION_CONSOLE_ON: {
2082             type = "SYSLOG_ACTION_CONSOLE_ON";
2083             break;
2084         }
2085         case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL: {
2086             type = "SYSLOG_ACTION_CONSOLE_LEVEL";
2087             break;
2088         }
2089         case TARGET_SYSLOG_ACTION_SIZE_UNREAD: {
2090             type = "SYSLOG_ACTION_SIZE_UNREAD";
2091             break;
2092         }
2093         case TARGET_SYSLOG_ACTION_SIZE_BUFFER: {
2094             type = "SYSLOG_ACTION_SIZE_BUFFER";
2095             break;
2096         }
2097         default: {
2098             print_raw_param("%ld", arg, last);
2099             return;
2100         }
2101     }
2102     gemu_log("%s%s", type, get_comma(last));
2103 }
2104 
2105 static void
2106 print_syslog(const struct syscallname *name,
2107     abi_long arg0, abi_long arg1, abi_long arg2,
2108     abi_long arg3, abi_long arg4, abi_long arg5)
2109 {
2110     print_syscall_prologue(name);
2111     print_syslog_action(arg0, 0);
2112     print_pointer(arg1, 0);
2113     print_raw_param("%d", arg2, 1);
2114     print_syscall_epilogue(name);
2115 }
2116 #endif
2117 
2118 #ifdef TARGET_NR_mknod
2119 static void
2120 print_mknod(const struct syscallname *name,
2121     abi_long arg0, abi_long arg1, abi_long arg2,
2122     abi_long arg3, abi_long arg4, abi_long arg5)
2123 {
2124     int hasdev = (arg1 & (S_IFCHR|S_IFBLK));
2125 
2126     print_syscall_prologue(name);
2127     print_string(arg0, 0);
2128     print_file_mode(arg1, (hasdev == 0));
2129     if (hasdev) {
2130         print_raw_param("makedev(%d", major(arg2), 0);
2131         print_raw_param("%d)", minor(arg2), 1);
2132     }
2133     print_syscall_epilogue(name);
2134 }
2135 #endif
2136 
2137 #ifdef TARGET_NR_mknodat
2138 static void
2139 print_mknodat(const struct syscallname *name,
2140     abi_long arg0, abi_long arg1, abi_long arg2,
2141     abi_long arg3, abi_long arg4, abi_long arg5)
2142 {
2143     int hasdev = (arg2 & (S_IFCHR|S_IFBLK));
2144 
2145     print_syscall_prologue(name);
2146     print_at_dirfd(arg0, 0);
2147     print_string(arg1, 0);
2148     print_file_mode(arg2, (hasdev == 0));
2149     if (hasdev) {
2150         print_raw_param("makedev(%d", major(arg3), 0);
2151         print_raw_param("%d)", minor(arg3), 1);
2152     }
2153     print_syscall_epilogue(name);
2154 }
2155 #endif
2156 
2157 #ifdef TARGET_NR_mq_open
2158 static void
2159 print_mq_open(const struct syscallname *name,
2160     abi_long arg0, abi_long arg1, abi_long arg2,
2161     abi_long arg3, abi_long arg4, abi_long arg5)
2162 {
2163     int is_creat = (arg1 & TARGET_O_CREAT);
2164 
2165     print_syscall_prologue(name);
2166     print_string(arg0, 0);
2167     print_open_flags(arg1, (is_creat == 0));
2168     if (is_creat) {
2169         print_file_mode(arg2, 0);
2170         print_pointer(arg3, 1);
2171     }
2172     print_syscall_epilogue(name);
2173 }
2174 #endif
2175 
2176 #ifdef TARGET_NR_open
2177 static void
2178 print_open(const struct syscallname *name,
2179     abi_long arg0, abi_long arg1, abi_long arg2,
2180     abi_long arg3, abi_long arg4, abi_long arg5)
2181 {
2182     int is_creat = (arg1 & TARGET_O_CREAT);
2183 
2184     print_syscall_prologue(name);
2185     print_string(arg0, 0);
2186     print_open_flags(arg1, (is_creat == 0));
2187     if (is_creat)
2188         print_file_mode(arg2, 1);
2189     print_syscall_epilogue(name);
2190 }
2191 #endif
2192 
2193 #ifdef TARGET_NR_openat
2194 static void
2195 print_openat(const struct syscallname *name,
2196     abi_long arg0, abi_long arg1, abi_long arg2,
2197     abi_long arg3, abi_long arg4, abi_long arg5)
2198 {
2199     int is_creat = (arg2 & TARGET_O_CREAT);
2200 
2201     print_syscall_prologue(name);
2202     print_at_dirfd(arg0, 0);
2203     print_string(arg1, 0);
2204     print_open_flags(arg2, (is_creat == 0));
2205     if (is_creat)
2206         print_file_mode(arg3, 1);
2207     print_syscall_epilogue(name);
2208 }
2209 #endif
2210 
2211 #ifdef TARGET_NR_mq_unlink
2212 static void
2213 print_mq_unlink(const struct syscallname *name,
2214     abi_long arg0, abi_long arg1, abi_long arg2,
2215     abi_long arg3, abi_long arg4, abi_long arg5)
2216 {
2217     print_syscall_prologue(name);
2218     print_string(arg0, 1);
2219     print_syscall_epilogue(name);
2220 }
2221 #endif
2222 
2223 #if defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)
2224 static void
2225 print_fstatat64(const struct syscallname *name,
2226     abi_long arg0, abi_long arg1, abi_long arg2,
2227     abi_long arg3, abi_long arg4, abi_long arg5)
2228 {
2229     print_syscall_prologue(name);
2230     print_at_dirfd(arg0, 0);
2231     print_string(arg1, 0);
2232     print_pointer(arg2, 0);
2233     print_flags(at_file_flags, arg3, 1);
2234     print_syscall_epilogue(name);
2235 }
2236 #define print_newfstatat    print_fstatat64
2237 #endif
2238 
2239 #ifdef TARGET_NR_readlink
2240 static void
2241 print_readlink(const struct syscallname *name,
2242     abi_long arg0, abi_long arg1, abi_long arg2,
2243     abi_long arg3, abi_long arg4, abi_long arg5)
2244 {
2245     print_syscall_prologue(name);
2246     print_string(arg0, 0);
2247     print_pointer(arg1, 0);
2248     print_raw_param("%u", arg2, 1);
2249     print_syscall_epilogue(name);
2250 }
2251 #endif
2252 
2253 #ifdef TARGET_NR_readlinkat
2254 static void
2255 print_readlinkat(const struct syscallname *name,
2256     abi_long arg0, abi_long arg1, abi_long arg2,
2257     abi_long arg3, abi_long arg4, abi_long arg5)
2258 {
2259     print_syscall_prologue(name);
2260     print_at_dirfd(arg0, 0);
2261     print_string(arg1, 0);
2262     print_pointer(arg2, 0);
2263     print_raw_param("%u", arg3, 1);
2264     print_syscall_epilogue(name);
2265 }
2266 #endif
2267 
2268 #ifdef TARGET_NR_rename
2269 static void
2270 print_rename(const struct syscallname *name,
2271     abi_long arg0, abi_long arg1, abi_long arg2,
2272     abi_long arg3, abi_long arg4, abi_long arg5)
2273 {
2274     print_syscall_prologue(name);
2275     print_string(arg0, 0);
2276     print_string(arg1, 1);
2277     print_syscall_epilogue(name);
2278 }
2279 #endif
2280 
2281 #ifdef TARGET_NR_renameat
2282 static void
2283 print_renameat(const struct syscallname *name,
2284     abi_long arg0, abi_long arg1, abi_long arg2,
2285     abi_long arg3, abi_long arg4, abi_long arg5)
2286 {
2287     print_syscall_prologue(name);
2288     print_at_dirfd(arg0, 0);
2289     print_string(arg1, 0);
2290     print_at_dirfd(arg2, 0);
2291     print_string(arg3, 1);
2292     print_syscall_epilogue(name);
2293 }
2294 #endif
2295 
2296 #ifdef TARGET_NR_statfs
2297 static void
2298 print_statfs(const struct syscallname *name,
2299     abi_long arg0, abi_long arg1, abi_long arg2,
2300     abi_long arg3, abi_long arg4, abi_long arg5)
2301 {
2302     print_syscall_prologue(name);
2303     print_string(arg0, 0);
2304     print_pointer(arg1, 1);
2305     print_syscall_epilogue(name);
2306 }
2307 #define print_statfs64  print_statfs
2308 #endif
2309 
2310 #ifdef TARGET_NR_symlink
2311 static void
2312 print_symlink(const struct syscallname *name,
2313     abi_long arg0, abi_long arg1, abi_long arg2,
2314     abi_long arg3, abi_long arg4, abi_long arg5)
2315 {
2316     print_syscall_prologue(name);
2317     print_string(arg0, 0);
2318     print_string(arg1, 1);
2319     print_syscall_epilogue(name);
2320 }
2321 #endif
2322 
2323 #ifdef TARGET_NR_symlinkat
2324 static void
2325 print_symlinkat(const struct syscallname *name,
2326     abi_long arg0, abi_long arg1, abi_long arg2,
2327     abi_long arg3, abi_long arg4, abi_long arg5)
2328 {
2329     print_syscall_prologue(name);
2330     print_string(arg0, 0);
2331     print_at_dirfd(arg1, 0);
2332     print_string(arg2, 1);
2333     print_syscall_epilogue(name);
2334 }
2335 #endif
2336 
2337 #ifdef TARGET_NR_mount
2338 static void
2339 print_mount(const struct syscallname *name,
2340     abi_long arg0, abi_long arg1, abi_long arg2,
2341     abi_long arg3, abi_long arg4, abi_long arg5)
2342 {
2343     print_syscall_prologue(name);
2344     print_string(arg0, 0);
2345     print_string(arg1, 0);
2346     print_string(arg2, 0);
2347     print_flags(mount_flags, arg3, 0);
2348     print_pointer(arg4, 1);
2349     print_syscall_epilogue(name);
2350 }
2351 #endif
2352 
2353 #ifdef TARGET_NR_umount
2354 static void
2355 print_umount(const struct syscallname *name,
2356     abi_long arg0, abi_long arg1, abi_long arg2,
2357     abi_long arg3, abi_long arg4, abi_long arg5)
2358 {
2359     print_syscall_prologue(name);
2360     print_string(arg0, 1);
2361     print_syscall_epilogue(name);
2362 }
2363 #endif
2364 
2365 #ifdef TARGET_NR_umount2
2366 static void
2367 print_umount2(const struct syscallname *name,
2368     abi_long arg0, abi_long arg1, abi_long arg2,
2369     abi_long arg3, abi_long arg4, abi_long arg5)
2370 {
2371     print_syscall_prologue(name);
2372     print_string(arg0, 0);
2373     print_flags(umount2_flags, arg1, 1);
2374     print_syscall_epilogue(name);
2375 }
2376 #endif
2377 
2378 #ifdef TARGET_NR_unlink
2379 static void
2380 print_unlink(const struct syscallname *name,
2381     abi_long arg0, abi_long arg1, abi_long arg2,
2382     abi_long arg3, abi_long arg4, abi_long arg5)
2383 {
2384     print_syscall_prologue(name);
2385     print_string(arg0, 1);
2386     print_syscall_epilogue(name);
2387 }
2388 #endif
2389 
2390 #ifdef TARGET_NR_unlinkat
2391 static void
2392 print_unlinkat(const struct syscallname *name,
2393     abi_long arg0, abi_long arg1, abi_long arg2,
2394     abi_long arg3, abi_long arg4, abi_long arg5)
2395 {
2396     print_syscall_prologue(name);
2397     print_at_dirfd(arg0, 0);
2398     print_string(arg1, 0);
2399     print_flags(unlinkat_flags, arg2, 1);
2400     print_syscall_epilogue(name);
2401 }
2402 #endif
2403 
2404 #ifdef TARGET_NR_utime
2405 static void
2406 print_utime(const struct syscallname *name,
2407     abi_long arg0, abi_long arg1, abi_long arg2,
2408     abi_long arg3, abi_long arg4, abi_long arg5)
2409 {
2410     print_syscall_prologue(name);
2411     print_string(arg0, 0);
2412     print_pointer(arg1, 1);
2413     print_syscall_epilogue(name);
2414 }
2415 #endif
2416 
2417 #ifdef TARGET_NR_utimes
2418 static void
2419 print_utimes(const struct syscallname *name,
2420     abi_long arg0, abi_long arg1, abi_long arg2,
2421     abi_long arg3, abi_long arg4, abi_long arg5)
2422 {
2423     print_syscall_prologue(name);
2424     print_string(arg0, 0);
2425     print_pointer(arg1, 1);
2426     print_syscall_epilogue(name);
2427 }
2428 #endif
2429 
2430 #ifdef TARGET_NR_utimensat
2431 static void
2432 print_utimensat(const struct syscallname *name,
2433     abi_long arg0, abi_long arg1, abi_long arg2,
2434     abi_long arg3, abi_long arg4, abi_long arg5)
2435 {
2436     print_syscall_prologue(name);
2437     print_at_dirfd(arg0, 0);
2438     print_string(arg1, 0);
2439     print_pointer(arg2, 0);
2440     print_flags(at_file_flags, arg3, 1);
2441     print_syscall_epilogue(name);
2442 }
2443 #endif
2444 
2445 #if defined(TARGET_NR_mmap) || defined(TARGET_NR_mmap2)
2446 static void
2447 print_mmap(const struct syscallname *name,
2448     abi_long arg0, abi_long arg1, abi_long arg2,
2449     abi_long arg3, abi_long arg4, abi_long arg5)
2450 {
2451     print_syscall_prologue(name);
2452     print_pointer(arg0, 0);
2453     print_raw_param("%d", arg1, 0);
2454     print_flags(mmap_prot_flags, arg2, 0);
2455     print_flags(mmap_flags, arg3, 0);
2456     print_raw_param("%d", arg4, 0);
2457     print_raw_param("%#x", arg5, 1);
2458     print_syscall_epilogue(name);
2459 }
2460 #define print_mmap2     print_mmap
2461 #endif
2462 
2463 #ifdef TARGET_NR_mprotect
2464 static void
2465 print_mprotect(const struct syscallname *name,
2466     abi_long arg0, abi_long arg1, abi_long arg2,
2467     abi_long arg3, abi_long arg4, abi_long arg5)
2468 {
2469     print_syscall_prologue(name);
2470     print_pointer(arg0, 0);
2471     print_raw_param("%d", arg1, 0);
2472     print_flags(mmap_prot_flags, arg2, 1);
2473     print_syscall_epilogue(name);
2474 }
2475 #endif
2476 
2477 #ifdef TARGET_NR_munmap
2478 static void
2479 print_munmap(const struct syscallname *name,
2480     abi_long arg0, abi_long arg1, abi_long arg2,
2481     abi_long arg3, abi_long arg4, abi_long arg5)
2482 {
2483     print_syscall_prologue(name);
2484     print_pointer(arg0, 0);
2485     print_raw_param("%d", arg1, 1);
2486     print_syscall_epilogue(name);
2487 }
2488 #endif
2489 
2490 #ifdef TARGET_NR_futex
2491 static void print_futex_op(abi_long tflag, int last)
2492 {
2493 #define print_op(val) \
2494 if( cmd == val ) { \
2495     gemu_log(#val); \
2496     return; \
2497 }
2498 
2499     int cmd = (int)tflag;
2500 #ifdef FUTEX_PRIVATE_FLAG
2501     if (cmd & FUTEX_PRIVATE_FLAG) {
2502         gemu_log("FUTEX_PRIVATE_FLAG|");
2503         cmd &= ~FUTEX_PRIVATE_FLAG;
2504     }
2505 #endif
2506 #ifdef FUTEX_CLOCK_REALTIME
2507     if (cmd & FUTEX_CLOCK_REALTIME) {
2508         gemu_log("FUTEX_CLOCK_REALTIME|");
2509         cmd &= ~FUTEX_CLOCK_REALTIME;
2510     }
2511 #endif
2512     print_op(FUTEX_WAIT)
2513     print_op(FUTEX_WAKE)
2514     print_op(FUTEX_FD)
2515     print_op(FUTEX_REQUEUE)
2516     print_op(FUTEX_CMP_REQUEUE)
2517     print_op(FUTEX_WAKE_OP)
2518     print_op(FUTEX_LOCK_PI)
2519     print_op(FUTEX_UNLOCK_PI)
2520     print_op(FUTEX_TRYLOCK_PI)
2521 #ifdef FUTEX_WAIT_BITSET
2522     print_op(FUTEX_WAIT_BITSET)
2523 #endif
2524 #ifdef FUTEX_WAKE_BITSET
2525     print_op(FUTEX_WAKE_BITSET)
2526 #endif
2527     /* unknown values */
2528     gemu_log("%d",cmd);
2529 }
2530 
2531 static void
2532 print_futex(const struct syscallname *name,
2533     abi_long arg0, abi_long arg1, abi_long arg2,
2534     abi_long arg3, abi_long arg4, abi_long arg5)
2535 {
2536     print_syscall_prologue(name);
2537     print_pointer(arg0, 0);
2538     print_futex_op(arg1, 0);
2539     print_raw_param(",%d", arg2, 0);
2540     print_pointer(arg3, 0); /* struct timespec */
2541     print_pointer(arg4, 0);
2542     print_raw_param("%d", arg4, 1);
2543     print_syscall_epilogue(name);
2544 }
2545 #endif
2546 
2547 #ifdef TARGET_NR_kill
2548 static void
2549 print_kill(const struct syscallname *name,
2550     abi_long arg0, abi_long arg1, abi_long arg2,
2551     abi_long arg3, abi_long arg4, abi_long arg5)
2552 {
2553     print_syscall_prologue(name);
2554     print_raw_param("%d", arg0, 0);
2555     print_signal(arg1, 1);
2556     print_syscall_epilogue(name);
2557 }
2558 #endif
2559 
2560 #ifdef TARGET_NR_tkill
2561 static void
2562 print_tkill(const struct syscallname *name,
2563     abi_long arg0, abi_long arg1, abi_long arg2,
2564     abi_long arg3, abi_long arg4, abi_long arg5)
2565 {
2566     print_syscall_prologue(name);
2567     print_raw_param("%d", arg0, 0);
2568     print_signal(arg1, 1);
2569     print_syscall_epilogue(name);
2570 }
2571 #endif
2572 
2573 #ifdef TARGET_NR_tgkill
2574 static void
2575 print_tgkill(const struct syscallname *name,
2576     abi_long arg0, abi_long arg1, abi_long arg2,
2577     abi_long arg3, abi_long arg4, abi_long arg5)
2578 {
2579     print_syscall_prologue(name);
2580     print_raw_param("%d", arg0, 0);
2581     print_raw_param("%d", arg1, 0);
2582     print_signal(arg2, 1);
2583     print_syscall_epilogue(name);
2584 }
2585 #endif
2586 
2587 /*
2588  * An array of all of the syscalls we know about
2589  */
2590 
2591 static const struct syscallname scnames[] = {
2592 #include "strace.list"
2593 };
2594 
2595 static int nsyscalls = ARRAY_SIZE(scnames);
2596 
2597 /*
2598  * The public interface to this module.
2599  */
2600 void
2601 print_syscall(int num,
2602               abi_long arg1, abi_long arg2, abi_long arg3,
2603               abi_long arg4, abi_long arg5, abi_long arg6)
2604 {
2605     int i;
2606     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 ")";
2607 
2608     gemu_log("%d ", getpid() );
2609 
2610     for(i=0;i<nsyscalls;i++)
2611         if( scnames[i].nr == num ) {
2612             if( scnames[i].call != NULL ) {
2613                 scnames[i].call(&scnames[i],arg1,arg2,arg3,arg4,arg5,arg6);
2614             } else {
2615                 /* XXX: this format system is broken because it uses
2616                    host types and host pointers for strings */
2617                 if( scnames[i].format != NULL )
2618                     format = scnames[i].format;
2619                 gemu_log(format,scnames[i].name, arg1,arg2,arg3,arg4,arg5,arg6);
2620             }
2621             return;
2622         }
2623     gemu_log("Unknown syscall %d\n", num);
2624 }
2625 
2626 
2627 void
2628 print_syscall_ret(int num, abi_long ret)
2629 {
2630     int i;
2631     const char *errstr = NULL;
2632 
2633     for(i=0;i<nsyscalls;i++)
2634         if( scnames[i].nr == num ) {
2635             if( scnames[i].result != NULL ) {
2636                 scnames[i].result(&scnames[i],ret);
2637             } else {
2638                 if (ret < 0) {
2639                     errstr = target_strerror(-ret);
2640                 }
2641                 if (errstr) {
2642                     gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n",
2643                              -ret, errstr);
2644                 } else {
2645                     gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
2646                 }
2647             }
2648             break;
2649         }
2650 }
2651 
2652 void print_taken_signal(int target_signum, const target_siginfo_t *tinfo)
2653 {
2654     /* Print the strace output for a signal being taken:
2655      * --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0} ---
2656      */
2657     gemu_log("--- ");
2658     print_signal(target_signum, 1);
2659     gemu_log(" ");
2660     print_siginfo(tinfo);
2661     gemu_log(" ---\n");
2662 }
2663