xref: /qemu/linux-user/strace.c (revision b25f23e7)
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 print_siginfo(const target_siginfo_t *tinfo)
192 {
193     /* Print a target_siginfo_t in the format desired for printing
194      * signals being taken. We assume the target_siginfo_t is in the
195      * internal form where the top 16 bits of si_code indicate which
196      * part of the union is valid, rather than in the guest-visible
197      * form where the bottom 16 bits are sign-extended into the top 16.
198      */
199     int si_type = extract32(tinfo->si_code, 16, 16);
200     int si_code = sextract32(tinfo->si_code, 0, 16);
201 
202     gemu_log("{si_signo=");
203     print_signal(tinfo->si_signo, 1);
204     gemu_log(", si_code=");
205     print_si_code(si_code);
206 
207     switch (si_type) {
208     case QEMU_SI_KILL:
209         gemu_log(", si_pid = %u, si_uid = %u",
210                  (unsigned int)tinfo->_sifields._kill._pid,
211                  (unsigned int)tinfo->_sifields._kill._uid);
212         break;
213     case QEMU_SI_TIMER:
214         gemu_log(", si_timer1 = %u, si_timer2 = %u",
215                  tinfo->_sifields._timer._timer1,
216                  tinfo->_sifields._timer._timer2);
217         break;
218     case QEMU_SI_POLL:
219         gemu_log(", si_band = %d, si_fd = %d",
220                  tinfo->_sifields._sigpoll._band,
221                  tinfo->_sifields._sigpoll._fd);
222         break;
223     case QEMU_SI_FAULT:
224         gemu_log(", si_addr = ");
225         print_pointer(tinfo->_sifields._sigfault._addr, 1);
226         break;
227     case QEMU_SI_CHLD:
228         gemu_log(", si_pid = %u, si_uid = %u, si_status = %d"
229                  ", si_utime=" TARGET_ABI_FMT_ld
230                  ", si_stime=" TARGET_ABI_FMT_ld,
231                  (unsigned int)(tinfo->_sifields._sigchld._pid),
232                  (unsigned int)(tinfo->_sifields._sigchld._uid),
233                  tinfo->_sifields._sigchld._status,
234                  tinfo->_sifields._sigchld._utime,
235                  tinfo->_sifields._sigchld._stime);
236         break;
237     case QEMU_SI_RT:
238         gemu_log(", si_pid = %u, si_uid = %u, si_sigval = " TARGET_ABI_FMT_ld,
239                  (unsigned int)tinfo->_sifields._rt._pid,
240                  (unsigned int)tinfo->_sifields._rt._uid,
241                  tinfo->_sifields._rt._sigval.sival_ptr);
242         break;
243     default:
244         g_assert_not_reached();
245     }
246     gemu_log("}");
247 }
248 
249 static void
250 print_sockaddr(abi_ulong addr, abi_long addrlen)
251 {
252     struct target_sockaddr *sa;
253     int i;
254     int sa_family;
255 
256     sa = lock_user(VERIFY_READ, addr, addrlen, 1);
257     if (sa) {
258         sa_family = tswap16(sa->sa_family);
259         switch (sa_family) {
260         case AF_UNIX: {
261             struct target_sockaddr_un *un = (struct target_sockaddr_un *)sa;
262             int i;
263             gemu_log("{sun_family=AF_UNIX,sun_path=\"");
264             for (i = 0; i < addrlen -
265                             offsetof(struct target_sockaddr_un, sun_path) &&
266                  un->sun_path[i]; i++) {
267                 gemu_log("%c", un->sun_path[i]);
268             }
269             gemu_log("\"}");
270             break;
271         }
272         case AF_INET: {
273             struct target_sockaddr_in *in = (struct target_sockaddr_in *)sa;
274             uint8_t *c = (uint8_t *)&in->sin_addr.s_addr;
275             gemu_log("{sin_family=AF_INET,sin_port=htons(%d),",
276                      ntohs(in->sin_port));
277             gemu_log("sin_addr=inet_addr(\"%d.%d.%d.%d\")",
278                      c[0], c[1], c[2], c[3]);
279             gemu_log("}");
280             break;
281         }
282         case AF_PACKET: {
283             struct target_sockaddr_ll *ll = (struct target_sockaddr_ll *)sa;
284             uint8_t *c = (uint8_t *)&ll->sll_addr;
285             gemu_log("{sll_family=AF_PACKET,"
286                      "sll_protocol=htons(0x%04x),if%d,pkttype=",
287                      ntohs(ll->sll_protocol), ll->sll_ifindex);
288             switch (ll->sll_pkttype) {
289             case PACKET_HOST:
290                 gemu_log("PACKET_HOST");
291                 break;
292             case PACKET_BROADCAST:
293                 gemu_log("PACKET_BROADCAST");
294                 break;
295             case PACKET_MULTICAST:
296                 gemu_log("PACKET_MULTICAST");
297                 break;
298             case PACKET_OTHERHOST:
299                 gemu_log("PACKET_OTHERHOST");
300                 break;
301             case PACKET_OUTGOING:
302                 gemu_log("PACKET_OUTGOING");
303                 break;
304             default:
305                 gemu_log("%d", ll->sll_pkttype);
306                 break;
307             }
308             gemu_log(",sll_addr=%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
309                      c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7]);
310             gemu_log("}");
311             break;
312         }
313         default:
314             gemu_log("{sa_family=%d, sa_data={", sa->sa_family);
315             for (i = 0; i < 13; i++) {
316                 gemu_log("%02x, ", sa->sa_data[i]);
317             }
318             gemu_log("%02x}", sa->sa_data[i]);
319             gemu_log("}");
320             break;
321         }
322         unlock_user(sa, addr, 0);
323     } else {
324         print_raw_param("0x"TARGET_ABI_FMT_lx, addr, 0);
325     }
326     gemu_log(", "TARGET_ABI_FMT_ld, addrlen);
327 }
328 
329 static void
330 print_socket_domain(int domain)
331 {
332     switch (domain) {
333     case PF_UNIX:
334         gemu_log("PF_UNIX");
335         break;
336     case PF_INET:
337         gemu_log("PF_INET");
338         break;
339     case PF_PACKET:
340         gemu_log("PF_PACKET");
341         break;
342     default:
343         gemu_log("%d", domain);
344         break;
345     }
346 }
347 
348 static void
349 print_socket_type(int type)
350 {
351     switch (type) {
352     case TARGET_SOCK_DGRAM:
353         gemu_log("SOCK_DGRAM");
354         break;
355     case TARGET_SOCK_STREAM:
356         gemu_log("SOCK_STREAM");
357         break;
358     case TARGET_SOCK_RAW:
359         gemu_log("SOCK_RAW");
360         break;
361     case TARGET_SOCK_RDM:
362         gemu_log("SOCK_RDM");
363         break;
364     case TARGET_SOCK_SEQPACKET:
365         gemu_log("SOCK_SEQPACKET");
366         break;
367     case TARGET_SOCK_PACKET:
368         gemu_log("SOCK_PACKET");
369         break;
370     }
371 }
372 
373 static void
374 print_socket_protocol(int domain, int type, int protocol)
375 {
376     if (domain == AF_PACKET ||
377         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
378         switch (protocol) {
379         case 0x0003:
380             gemu_log("ETH_P_ALL");
381             break;
382         default:
383             gemu_log("%d", protocol);
384         }
385         return;
386     }
387 
388     switch (protocol) {
389     case IPPROTO_IP:
390         gemu_log("IPPROTO_IP");
391         break;
392     case IPPROTO_TCP:
393         gemu_log("IPPROTO_TCP");
394         break;
395     case IPPROTO_UDP:
396         gemu_log("IPPROTO_UDP");
397         break;
398     case IPPROTO_RAW:
399         gemu_log("IPPROTO_RAW");
400         break;
401     default:
402         gemu_log("%d", protocol);
403         break;
404     }
405 }
406 
407 
408 #ifdef TARGET_NR__newselect
409 static void
410 print_fdset(int n, abi_ulong target_fds_addr)
411 {
412     int i;
413 
414     gemu_log("[");
415     if( target_fds_addr ) {
416         abi_long *target_fds;
417 
418         target_fds = lock_user(VERIFY_READ,
419                                target_fds_addr,
420                                sizeof(*target_fds)*(n / TARGET_ABI_BITS + 1),
421                                1);
422 
423         if (!target_fds)
424             return;
425 
426         for (i=n; i>=0; i--) {
427             if ((tswapal(target_fds[i / TARGET_ABI_BITS]) >> (i & (TARGET_ABI_BITS - 1))) & 1)
428                 gemu_log("%d,", i );
429             }
430         unlock_user(target_fds, target_fds_addr, 0);
431     }
432     gemu_log("]");
433 }
434 #endif
435 
436 #ifdef TARGET_NR_clock_adjtime
437 /* IDs of the various system clocks */
438 #define TARGET_CLOCK_REALTIME              0
439 #define TARGET_CLOCK_MONOTONIC             1
440 #define TARGET_CLOCK_PROCESS_CPUTIME_ID    2
441 #define TARGET_CLOCK_THREAD_CPUTIME_ID     3
442 #define TARGET_CLOCK_MONOTONIC_RAW         4
443 #define TARGET_CLOCK_REALTIME_COARSE       5
444 #define TARGET_CLOCK_MONOTONIC_COARSE      6
445 #define TARGET_CLOCK_BOOTTIME              7
446 #define TARGET_CLOCK_REALTIME_ALARM        8
447 #define TARGET_CLOCK_BOOTTIME_ALARM        9
448 #define TARGET_CLOCK_SGI_CYCLE             10
449 #define TARGET_CLOCK_TAI                   11
450 
451 static void
452 print_clockid(int clockid, int last)
453 {
454     switch (clockid) {
455     case TARGET_CLOCK_REALTIME:
456         gemu_log("CLOCK_REALTIME");
457         break;
458     case TARGET_CLOCK_MONOTONIC:
459         gemu_log("CLOCK_MONOTONIC");
460         break;
461     case TARGET_CLOCK_PROCESS_CPUTIME_ID:
462         gemu_log("CLOCK_PROCESS_CPUTIME_ID");
463         break;
464     case TARGET_CLOCK_THREAD_CPUTIME_ID:
465         gemu_log("CLOCK_THREAD_CPUTIME_ID");
466         break;
467     case TARGET_CLOCK_MONOTONIC_RAW:
468         gemu_log("CLOCK_MONOTONIC_RAW");
469         break;
470     case TARGET_CLOCK_REALTIME_COARSE:
471         gemu_log("CLOCK_REALTIME_COARSE");
472         break;
473     case TARGET_CLOCK_MONOTONIC_COARSE:
474         gemu_log("CLOCK_MONOTONIC_COARSE");
475         break;
476     case TARGET_CLOCK_BOOTTIME:
477         gemu_log("CLOCK_BOOTTIME");
478         break;
479     case TARGET_CLOCK_REALTIME_ALARM:
480         gemu_log("CLOCK_REALTIME_ALARM");
481         break;
482     case TARGET_CLOCK_BOOTTIME_ALARM:
483         gemu_log("CLOCK_BOOTTIME_ALARM");
484         break;
485     case TARGET_CLOCK_SGI_CYCLE:
486         gemu_log("CLOCK_SGI_CYCLE");
487         break;
488     case TARGET_CLOCK_TAI:
489         gemu_log("CLOCK_TAI");
490         break;
491     default:
492         gemu_log("%d", clockid);
493         break;
494     }
495     gemu_log("%s", get_comma(last));
496 }
497 #endif
498 
499 /*
500  * Sysycall specific output functions
501  */
502 
503 /* select */
504 #ifdef TARGET_NR__newselect
505 static long newselect_arg1 = 0;
506 static long newselect_arg2 = 0;
507 static long newselect_arg3 = 0;
508 static long newselect_arg4 = 0;
509 static long newselect_arg5 = 0;
510 
511 static void
512 print_newselect(const struct syscallname *name,
513                 abi_long arg1, abi_long arg2, abi_long arg3,
514                 abi_long arg4, abi_long arg5, abi_long arg6)
515 {
516     gemu_log("%s(" TARGET_ABI_FMT_ld ",", name->name, arg1);
517     print_fdset(arg1, arg2);
518     gemu_log(",");
519     print_fdset(arg1, arg3);
520     gemu_log(",");
521     print_fdset(arg1, arg4);
522     gemu_log(",");
523     print_timeval(arg5, 1);
524     gemu_log(")");
525 
526     /* save for use in the return output function below */
527     newselect_arg1=arg1;
528     newselect_arg2=arg2;
529     newselect_arg3=arg3;
530     newselect_arg4=arg4;
531     newselect_arg5=arg5;
532 }
533 #endif
534 
535 #ifdef TARGET_NR_semctl
536 static void
537 print_semctl(const struct syscallname *name,
538              abi_long arg1, abi_long arg2, abi_long arg3,
539              abi_long arg4, abi_long arg5, abi_long arg6)
540 {
541     gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", name->name, arg1, arg2);
542     print_ipc_cmd(arg3);
543     gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
544 }
545 #endif
546 
547 static void
548 print_execve(const struct syscallname *name,
549              abi_long arg1, abi_long arg2, abi_long arg3,
550              abi_long arg4, abi_long arg5, abi_long arg6)
551 {
552     abi_ulong arg_ptr_addr;
553     char *s;
554 
555     if (!(s = lock_user_string(arg1)))
556         return;
557     gemu_log("%s(\"%s\",{", name->name, s);
558     unlock_user(s, arg1, 0);
559 
560     for (arg_ptr_addr = arg2; ; arg_ptr_addr += sizeof(abi_ulong)) {
561         abi_ulong *arg_ptr, arg_addr;
562 
563 	arg_ptr = lock_user(VERIFY_READ, arg_ptr_addr, sizeof(abi_ulong), 1);
564         if (!arg_ptr)
565             return;
566     arg_addr = tswapal(*arg_ptr);
567 	unlock_user(arg_ptr, arg_ptr_addr, 0);
568         if (!arg_addr)
569             break;
570         if ((s = lock_user_string(arg_addr))) {
571             gemu_log("\"%s\",", s);
572             unlock_user(s, arg_addr, 0);
573         }
574     }
575 
576     gemu_log("NULL})");
577 }
578 
579 #ifdef TARGET_NR_ipc
580 static void
581 print_ipc(const struct syscallname *name,
582           abi_long arg1, abi_long arg2, abi_long arg3,
583           abi_long arg4, abi_long arg5, abi_long arg6)
584 {
585     switch(arg1) {
586     case IPCOP_semctl:
587         gemu_log("semctl(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",", arg1, arg2);
588         print_ipc_cmd(arg3);
589         gemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
590         break;
591     default:
592         gemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ")",
593                  name->name, arg1, arg2, arg3, arg4);
594     }
595 }
596 #endif
597 
598 /*
599  * Variants for the return value output function
600  */
601 
602 static void
603 print_syscall_ret_addr(const struct syscallname *name, abi_long ret)
604 {
605     const char *errstr = NULL;
606 
607     if (ret < 0) {
608         errstr = target_strerror(-ret);
609     }
610     if (errstr) {
611         gemu_log(" = -1 errno=%d (%s)\n", (int)-ret, errstr);
612     } else {
613         gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
614     }
615 }
616 
617 #if 0 /* currently unused */
618 static void
619 print_syscall_ret_raw(struct syscallname *name, abi_long ret)
620 {
621         gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
622 }
623 #endif
624 
625 #ifdef TARGET_NR__newselect
626 static void
627 print_syscall_ret_newselect(const struct syscallname *name, abi_long ret)
628 {
629     gemu_log(" = 0x" TARGET_ABI_FMT_lx " (", ret);
630     print_fdset(newselect_arg1,newselect_arg2);
631     gemu_log(",");
632     print_fdset(newselect_arg1,newselect_arg3);
633     gemu_log(",");
634     print_fdset(newselect_arg1,newselect_arg4);
635     gemu_log(",");
636     print_timeval(newselect_arg5, 1);
637     gemu_log(")\n");
638 }
639 #endif
640 
641 /* special meanings of adjtimex()' non-negative return values */
642 #define TARGET_TIME_OK       0   /* clock synchronized, no leap second */
643 #define TARGET_TIME_INS      1   /* insert leap second */
644 #define TARGET_TIME_DEL      2   /* delete leap second */
645 #define TARGET_TIME_OOP      3   /* leap second in progress */
646 #define TARGET_TIME_WAIT     4   /* leap second has occurred */
647 #define TARGET_TIME_ERROR    5   /* clock not synchronized */
648 static void
649 print_syscall_ret_adjtimex(const struct syscallname *name, abi_long ret)
650 {
651     const char *errstr = NULL;
652 
653     gemu_log(" = ");
654     if (ret < 0) {
655         gemu_log("-1 errno=%d", errno);
656         errstr = target_strerror(-ret);
657         if (errstr) {
658             gemu_log(" (%s)", errstr);
659         }
660     } else {
661         gemu_log(TARGET_ABI_FMT_ld, ret);
662         switch (ret) {
663         case TARGET_TIME_OK:
664             gemu_log(" TIME_OK (clock synchronized, no leap second)");
665             break;
666         case TARGET_TIME_INS:
667             gemu_log(" TIME_INS (insert leap second)");
668             break;
669         case TARGET_TIME_DEL:
670             gemu_log(" TIME_DEL (delete leap second)");
671             break;
672         case TARGET_TIME_OOP:
673             gemu_log(" TIME_OOP (leap second in progress)");
674             break;
675         case TARGET_TIME_WAIT:
676             gemu_log(" TIME_WAIT (leap second has occurred)");
677             break;
678         case TARGET_TIME_ERROR:
679             gemu_log(" TIME_ERROR (clock not synchronized)");
680             break;
681         }
682     }
683 
684     gemu_log("\n");
685 }
686 
687 UNUSED static struct flags access_flags[] = {
688     FLAG_GENERIC(F_OK),
689     FLAG_GENERIC(R_OK),
690     FLAG_GENERIC(W_OK),
691     FLAG_GENERIC(X_OK),
692     FLAG_END,
693 };
694 
695 UNUSED static struct flags at_file_flags[] = {
696 #ifdef AT_EACCESS
697     FLAG_GENERIC(AT_EACCESS),
698 #endif
699 #ifdef AT_SYMLINK_NOFOLLOW
700     FLAG_GENERIC(AT_SYMLINK_NOFOLLOW),
701 #endif
702     FLAG_END,
703 };
704 
705 UNUSED static struct flags unlinkat_flags[] = {
706 #ifdef AT_REMOVEDIR
707     FLAG_GENERIC(AT_REMOVEDIR),
708 #endif
709     FLAG_END,
710 };
711 
712 UNUSED static struct flags mode_flags[] = {
713     FLAG_GENERIC(S_IFSOCK),
714     FLAG_GENERIC(S_IFLNK),
715     FLAG_GENERIC(S_IFREG),
716     FLAG_GENERIC(S_IFBLK),
717     FLAG_GENERIC(S_IFDIR),
718     FLAG_GENERIC(S_IFCHR),
719     FLAG_GENERIC(S_IFIFO),
720     FLAG_END,
721 };
722 
723 UNUSED static struct flags open_access_flags[] = {
724     FLAG_TARGET(O_RDONLY),
725     FLAG_TARGET(O_WRONLY),
726     FLAG_TARGET(O_RDWR),
727     FLAG_END,
728 };
729 
730 UNUSED static struct flags open_flags[] = {
731     FLAG_TARGET(O_APPEND),
732     FLAG_TARGET(O_CREAT),
733     FLAG_TARGET(O_DIRECTORY),
734     FLAG_TARGET(O_EXCL),
735     FLAG_TARGET(O_LARGEFILE),
736     FLAG_TARGET(O_NOCTTY),
737     FLAG_TARGET(O_NOFOLLOW),
738     FLAG_TARGET(O_NONBLOCK),      /* also O_NDELAY */
739     FLAG_TARGET(O_DSYNC),
740     FLAG_TARGET(__O_SYNC),
741     FLAG_TARGET(O_TRUNC),
742 #ifdef O_DIRECT
743     FLAG_TARGET(O_DIRECT),
744 #endif
745 #ifdef O_NOATIME
746     FLAG_TARGET(O_NOATIME),
747 #endif
748 #ifdef O_CLOEXEC
749     FLAG_TARGET(O_CLOEXEC),
750 #endif
751 #ifdef O_PATH
752     FLAG_TARGET(O_PATH),
753 #endif
754     FLAG_END,
755 };
756 
757 UNUSED static struct flags mount_flags[] = {
758 #ifdef MS_BIND
759     FLAG_GENERIC(MS_BIND),
760 #endif
761 #ifdef MS_DIRSYNC
762     FLAG_GENERIC(MS_DIRSYNC),
763 #endif
764     FLAG_GENERIC(MS_MANDLOCK),
765 #ifdef MS_MOVE
766     FLAG_GENERIC(MS_MOVE),
767 #endif
768     FLAG_GENERIC(MS_NOATIME),
769     FLAG_GENERIC(MS_NODEV),
770     FLAG_GENERIC(MS_NODIRATIME),
771     FLAG_GENERIC(MS_NOEXEC),
772     FLAG_GENERIC(MS_NOSUID),
773     FLAG_GENERIC(MS_RDONLY),
774 #ifdef MS_RELATIME
775     FLAG_GENERIC(MS_RELATIME),
776 #endif
777     FLAG_GENERIC(MS_REMOUNT),
778     FLAG_GENERIC(MS_SYNCHRONOUS),
779     FLAG_END,
780 };
781 
782 UNUSED static struct flags umount2_flags[] = {
783 #ifdef MNT_FORCE
784     FLAG_GENERIC(MNT_FORCE),
785 #endif
786 #ifdef MNT_DETACH
787     FLAG_GENERIC(MNT_DETACH),
788 #endif
789 #ifdef MNT_EXPIRE
790     FLAG_GENERIC(MNT_EXPIRE),
791 #endif
792     FLAG_END,
793 };
794 
795 UNUSED static struct flags mmap_prot_flags[] = {
796     FLAG_GENERIC(PROT_NONE),
797     FLAG_GENERIC(PROT_EXEC),
798     FLAG_GENERIC(PROT_READ),
799     FLAG_GENERIC(PROT_WRITE),
800     FLAG_TARGET(PROT_SEM),
801     FLAG_GENERIC(PROT_GROWSDOWN),
802     FLAG_GENERIC(PROT_GROWSUP),
803     FLAG_END,
804 };
805 
806 UNUSED static struct flags mmap_flags[] = {
807     FLAG_TARGET(MAP_SHARED),
808     FLAG_TARGET(MAP_PRIVATE),
809     FLAG_TARGET(MAP_ANONYMOUS),
810     FLAG_TARGET(MAP_DENYWRITE),
811     FLAG_TARGET(MAP_FIXED),
812     FLAG_TARGET(MAP_GROWSDOWN),
813     FLAG_TARGET(MAP_EXECUTABLE),
814 #ifdef MAP_LOCKED
815     FLAG_TARGET(MAP_LOCKED),
816 #endif
817 #ifdef MAP_NONBLOCK
818     FLAG_TARGET(MAP_NONBLOCK),
819 #endif
820     FLAG_TARGET(MAP_NORESERVE),
821 #ifdef MAP_POPULATE
822     FLAG_TARGET(MAP_POPULATE),
823 #endif
824 #ifdef TARGET_MAP_UNINITIALIZED
825     FLAG_TARGET(MAP_UNINITIALIZED),
826 #endif
827     FLAG_END,
828 };
829 
830 UNUSED static struct flags clone_flags[] = {
831     FLAG_GENERIC(CLONE_VM),
832     FLAG_GENERIC(CLONE_FS),
833     FLAG_GENERIC(CLONE_FILES),
834     FLAG_GENERIC(CLONE_SIGHAND),
835     FLAG_GENERIC(CLONE_PTRACE),
836     FLAG_GENERIC(CLONE_VFORK),
837     FLAG_GENERIC(CLONE_PARENT),
838     FLAG_GENERIC(CLONE_THREAD),
839     FLAG_GENERIC(CLONE_NEWNS),
840     FLAG_GENERIC(CLONE_SYSVSEM),
841     FLAG_GENERIC(CLONE_SETTLS),
842     FLAG_GENERIC(CLONE_PARENT_SETTID),
843     FLAG_GENERIC(CLONE_CHILD_CLEARTID),
844     FLAG_GENERIC(CLONE_DETACHED),
845     FLAG_GENERIC(CLONE_UNTRACED),
846     FLAG_GENERIC(CLONE_CHILD_SETTID),
847 #if defined(CLONE_NEWUTS)
848     FLAG_GENERIC(CLONE_NEWUTS),
849 #endif
850 #if defined(CLONE_NEWIPC)
851     FLAG_GENERIC(CLONE_NEWIPC),
852 #endif
853 #if defined(CLONE_NEWUSER)
854     FLAG_GENERIC(CLONE_NEWUSER),
855 #endif
856 #if defined(CLONE_NEWPID)
857     FLAG_GENERIC(CLONE_NEWPID),
858 #endif
859 #if defined(CLONE_NEWNET)
860     FLAG_GENERIC(CLONE_NEWNET),
861 #endif
862 #if defined(CLONE_IO)
863     FLAG_GENERIC(CLONE_IO),
864 #endif
865     FLAG_END,
866 };
867 
868 UNUSED static struct flags msg_flags[] = {
869     /* send */
870     FLAG_GENERIC(MSG_CONFIRM),
871     FLAG_GENERIC(MSG_DONTROUTE),
872     FLAG_GENERIC(MSG_DONTWAIT),
873     FLAG_GENERIC(MSG_EOR),
874     FLAG_GENERIC(MSG_MORE),
875     FLAG_GENERIC(MSG_NOSIGNAL),
876     FLAG_GENERIC(MSG_OOB),
877     /* recv */
878     FLAG_GENERIC(MSG_CMSG_CLOEXEC),
879     FLAG_GENERIC(MSG_ERRQUEUE),
880     FLAG_GENERIC(MSG_PEEK),
881     FLAG_GENERIC(MSG_TRUNC),
882     FLAG_GENERIC(MSG_WAITALL),
883     /* recvmsg */
884     FLAG_GENERIC(MSG_CTRUNC),
885     FLAG_END,
886 };
887 
888 /*
889  * print_xxx utility functions.  These are used to print syscall
890  * parameters in certain format.  All of these have parameter
891  * named 'last'.  This parameter is used to add comma to output
892  * when last == 0.
893  */
894 
895 static const char *
896 get_comma(int last)
897 {
898     return ((last) ? "" : ",");
899 }
900 
901 static void
902 print_flags(const struct flags *f, abi_long flags, int last)
903 {
904     const char *sep = "";
905     int n;
906 
907     if ((flags == 0) && (f->f_value == 0)) {
908         gemu_log("%s%s", f->f_string, get_comma(last));
909         return;
910     }
911     for (n = 0; f->f_string != NULL; f++) {
912         if ((f->f_value != 0) && ((flags & f->f_value) == f->f_value)) {
913             gemu_log("%s%s", sep, f->f_string);
914             flags &= ~f->f_value;
915             sep = "|";
916             n++;
917         }
918     }
919 
920     if (n > 0) {
921         /* print rest of the flags as numeric */
922         if (flags != 0) {
923             gemu_log("%s%#x%s", sep, (unsigned int)flags, get_comma(last));
924         } else {
925             gemu_log("%s", get_comma(last));
926         }
927     } else {
928         /* no string version of flags found, print them in hex then */
929         gemu_log("%#x%s", (unsigned int)flags, get_comma(last));
930     }
931 }
932 
933 static void
934 print_at_dirfd(abi_long dirfd, int last)
935 {
936 #ifdef AT_FDCWD
937     if (dirfd == AT_FDCWD) {
938         gemu_log("AT_FDCWD%s", get_comma(last));
939         return;
940     }
941 #endif
942     gemu_log("%d%s", (int)dirfd, get_comma(last));
943 }
944 
945 static void
946 print_file_mode(abi_long mode, int last)
947 {
948     const char *sep = "";
949     const struct flags *m;
950 
951     for (m = &mode_flags[0]; m->f_string != NULL; m++) {
952         if ((m->f_value & mode) == m->f_value) {
953             gemu_log("%s%s", m->f_string, sep);
954             sep = "|";
955             mode &= ~m->f_value;
956             break;
957         }
958     }
959 
960     mode &= ~S_IFMT;
961     /* print rest of the mode as octal */
962     if (mode != 0)
963         gemu_log("%s%#o", sep, (unsigned int)mode);
964 
965     gemu_log("%s", get_comma(last));
966 }
967 
968 static void
969 print_open_flags(abi_long flags, int last)
970 {
971     print_flags(open_access_flags, flags & TARGET_O_ACCMODE, 1);
972     flags &= ~TARGET_O_ACCMODE;
973     if (flags == 0) {
974         gemu_log("%s", get_comma(last));
975         return;
976     }
977     gemu_log("|");
978     print_flags(open_flags, flags, last);
979 }
980 
981 static void
982 print_syscall_prologue(const struct syscallname *sc)
983 {
984     gemu_log("%s(", sc->name);
985 }
986 
987 /*ARGSUSED*/
988 static void
989 print_syscall_epilogue(const struct syscallname *sc)
990 {
991     (void)sc;
992     gemu_log(")");
993 }
994 
995 static void
996 print_string(abi_long addr, int last)
997 {
998     char *s;
999 
1000     if ((s = lock_user_string(addr)) != NULL) {
1001         gemu_log("\"%s\"%s", s, get_comma(last));
1002         unlock_user(s, addr, 0);
1003     } else {
1004         /* can't get string out of it, so print it as pointer */
1005         print_pointer(addr, last);
1006     }
1007 }
1008 
1009 #define MAX_PRINT_BUF 40
1010 static void
1011 print_buf(abi_long addr, abi_long len, int last)
1012 {
1013     uint8_t *s;
1014     int i;
1015 
1016     s = lock_user(VERIFY_READ, addr, len, 1);
1017     if (s) {
1018         gemu_log("\"");
1019         for (i = 0; i < MAX_PRINT_BUF && i < len; i++) {
1020             if (isprint(s[i])) {
1021                 gemu_log("%c", s[i]);
1022             } else {
1023                 gemu_log("\\%o", s[i]);
1024             }
1025         }
1026         gemu_log("\"");
1027         if (i != len) {
1028             gemu_log("...");
1029         }
1030         if (!last) {
1031             gemu_log(",");
1032         }
1033         unlock_user(s, addr, 0);
1034     } else {
1035         print_pointer(addr, last);
1036     }
1037 }
1038 
1039 /*
1040  * Prints out raw parameter using given format.  Caller needs
1041  * to do byte swapping if needed.
1042  */
1043 static void
1044 print_raw_param(const char *fmt, abi_long param, int last)
1045 {
1046     char format[64];
1047 
1048     (void) snprintf(format, sizeof (format), "%s%s", fmt, get_comma(last));
1049     gemu_log(format, param);
1050 }
1051 
1052 static void
1053 print_pointer(abi_long p, int last)
1054 {
1055     if (p == 0)
1056         gemu_log("NULL%s", get_comma(last));
1057     else
1058         gemu_log("0x" TARGET_ABI_FMT_lx "%s", p, get_comma(last));
1059 }
1060 
1061 /*
1062  * Reads 32-bit (int) number from guest address space from
1063  * address 'addr' and prints it.
1064  */
1065 static void
1066 print_number(abi_long addr, int last)
1067 {
1068     if (addr == 0) {
1069         gemu_log("NULL%s", get_comma(last));
1070     } else {
1071         int num;
1072 
1073         get_user_s32(num, addr);
1074         gemu_log("[%d]%s", num, get_comma(last));
1075     }
1076 }
1077 
1078 static void
1079 print_timeval(abi_ulong tv_addr, int last)
1080 {
1081     if( tv_addr ) {
1082         struct target_timeval *tv;
1083 
1084         tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1);
1085         if (!tv)
1086             return;
1087         gemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s",
1088             tswapal(tv->tv_sec), tswapal(tv->tv_usec), get_comma(last));
1089         unlock_user(tv, tv_addr, 0);
1090     } else
1091         gemu_log("NULL%s", get_comma(last));
1092 }
1093 
1094 #undef UNUSED
1095 
1096 #ifdef TARGET_NR_accept
1097 static void
1098 print_accept(const struct syscallname *name,
1099     abi_long arg0, abi_long arg1, abi_long arg2,
1100     abi_long arg3, abi_long arg4, abi_long arg5)
1101 {
1102     print_syscall_prologue(name);
1103     print_raw_param("%d", arg0, 0);
1104     print_pointer(arg1, 0);
1105     print_number(arg2, 1);
1106     print_syscall_epilogue(name);
1107 }
1108 #endif
1109 
1110 #ifdef TARGET_NR_access
1111 static void
1112 print_access(const struct syscallname *name,
1113     abi_long arg0, abi_long arg1, abi_long arg2,
1114     abi_long arg3, abi_long arg4, abi_long arg5)
1115 {
1116     print_syscall_prologue(name);
1117     print_string(arg0, 0);
1118     print_flags(access_flags, arg1, 1);
1119     print_syscall_epilogue(name);
1120 }
1121 #endif
1122 
1123 #ifdef TARGET_NR_brk
1124 static void
1125 print_brk(const struct syscallname *name,
1126     abi_long arg0, abi_long arg1, abi_long arg2,
1127     abi_long arg3, abi_long arg4, abi_long arg5)
1128 {
1129     print_syscall_prologue(name);
1130     print_pointer(arg0, 1);
1131     print_syscall_epilogue(name);
1132 }
1133 #endif
1134 
1135 #ifdef TARGET_NR_chdir
1136 static void
1137 print_chdir(const struct syscallname *name,
1138     abi_long arg0, abi_long arg1, abi_long arg2,
1139     abi_long arg3, abi_long arg4, abi_long arg5)
1140 {
1141     print_syscall_prologue(name);
1142     print_string(arg0, 1);
1143     print_syscall_epilogue(name);
1144 }
1145 #endif
1146 
1147 #ifdef TARGET_NR_chmod
1148 static void
1149 print_chmod(const struct syscallname *name,
1150     abi_long arg0, abi_long arg1, abi_long arg2,
1151     abi_long arg3, abi_long arg4, abi_long arg5)
1152 {
1153     print_syscall_prologue(name);
1154     print_string(arg0, 0);
1155     print_file_mode(arg1, 1);
1156     print_syscall_epilogue(name);
1157 }
1158 #endif
1159 
1160 #ifdef TARGET_NR_clock_adjtime
1161 static void
1162 print_clock_adjtime(const struct syscallname *name,
1163     abi_long arg0, abi_long arg1, abi_long arg2,
1164     abi_long arg3, abi_long arg4, abi_long arg5)
1165 {
1166     print_syscall_prologue(name);
1167     print_clockid(arg0, 0);
1168     print_pointer(arg1, 1);
1169     print_syscall_epilogue(name);
1170 }
1171 #endif
1172 
1173 #ifdef TARGET_NR_clone
1174 static void do_print_clone(unsigned int flags, abi_ulong newsp,
1175                            abi_ulong parent_tidptr, target_ulong newtls,
1176                            abi_ulong child_tidptr)
1177 {
1178     print_flags(clone_flags, flags, 0);
1179     print_raw_param("child_stack=0x" TARGET_ABI_FMT_lx, newsp, 0);
1180     print_raw_param("parent_tidptr=0x" TARGET_ABI_FMT_lx, parent_tidptr, 0);
1181     print_raw_param("tls=0x" TARGET_ABI_FMT_lx, newtls, 0);
1182     print_raw_param("child_tidptr=0x" TARGET_ABI_FMT_lx, child_tidptr, 1);
1183 }
1184 
1185 static void
1186 print_clone(const struct syscallname *name,
1187     abi_long arg1, abi_long arg2, abi_long arg3,
1188     abi_long arg4, abi_long arg5, abi_long arg6)
1189 {
1190     print_syscall_prologue(name);
1191 #if defined(TARGET_MICROBLAZE)
1192     do_print_clone(arg1, arg2, arg4, arg6, arg5);
1193 #elif defined(TARGET_CLONE_BACKWARDS)
1194     do_print_clone(arg1, arg2, arg3, arg4, arg5);
1195 #elif defined(TARGET_CLONE_BACKWARDS2)
1196     do_print_clone(arg2, arg1, arg3, arg5, arg4);
1197 #else
1198     do_print_clone(arg1, arg2, arg3, arg5, arg4);
1199 #endif
1200     print_syscall_epilogue(name);
1201 }
1202 #endif
1203 
1204 #ifdef TARGET_NR_creat
1205 static void
1206 print_creat(const struct syscallname *name,
1207     abi_long arg0, abi_long arg1, abi_long arg2,
1208     abi_long arg3, abi_long arg4, abi_long arg5)
1209 {
1210     print_syscall_prologue(name);
1211     print_string(arg0, 0);
1212     print_file_mode(arg1, 1);
1213     print_syscall_epilogue(name);
1214 }
1215 #endif
1216 
1217 #ifdef TARGET_NR_execv
1218 static void
1219 print_execv(const struct syscallname *name,
1220     abi_long arg0, abi_long arg1, abi_long arg2,
1221     abi_long arg3, abi_long arg4, abi_long arg5)
1222 {
1223     print_syscall_prologue(name);
1224     print_string(arg0, 0);
1225     print_raw_param("0x" TARGET_ABI_FMT_lx, arg1, 1);
1226     print_syscall_epilogue(name);
1227 }
1228 #endif
1229 
1230 #ifdef TARGET_NR_faccessat
1231 static void
1232 print_faccessat(const struct syscallname *name,
1233     abi_long arg0, abi_long arg1, abi_long arg2,
1234     abi_long arg3, abi_long arg4, abi_long arg5)
1235 {
1236     print_syscall_prologue(name);
1237     print_at_dirfd(arg0, 0);
1238     print_string(arg1, 0);
1239     print_flags(access_flags, arg2, 0);
1240     print_flags(at_file_flags, arg3, 1);
1241     print_syscall_epilogue(name);
1242 }
1243 #endif
1244 
1245 #ifdef TARGET_NR_fchmodat
1246 static void
1247 print_fchmodat(const struct syscallname *name,
1248     abi_long arg0, abi_long arg1, abi_long arg2,
1249     abi_long arg3, abi_long arg4, abi_long arg5)
1250 {
1251     print_syscall_prologue(name);
1252     print_at_dirfd(arg0, 0);
1253     print_string(arg1, 0);
1254     print_file_mode(arg2, 0);
1255     print_flags(at_file_flags, arg3, 1);
1256     print_syscall_epilogue(name);
1257 }
1258 #endif
1259 
1260 #ifdef TARGET_NR_fchownat
1261 static void
1262 print_fchownat(const struct syscallname *name,
1263     abi_long arg0, abi_long arg1, abi_long arg2,
1264     abi_long arg3, abi_long arg4, abi_long arg5)
1265 {
1266     print_syscall_prologue(name);
1267     print_at_dirfd(arg0, 0);
1268     print_string(arg1, 0);
1269     print_raw_param("%d", arg2, 0);
1270     print_raw_param("%d", arg3, 0);
1271     print_flags(at_file_flags, arg4, 1);
1272     print_syscall_epilogue(name);
1273 }
1274 #endif
1275 
1276 #if defined(TARGET_NR_fcntl) || defined(TARGET_NR_fcntl64)
1277 static void
1278 print_fcntl(const struct syscallname *name,
1279     abi_long arg0, abi_long arg1, abi_long arg2,
1280     abi_long arg3, abi_long arg4, abi_long arg5)
1281 {
1282     print_syscall_prologue(name);
1283     print_raw_param("%d", arg0, 0);
1284     switch(arg1) {
1285     case TARGET_F_DUPFD:
1286         gemu_log("F_DUPFD,");
1287         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1288         break;
1289     case TARGET_F_GETFD:
1290         gemu_log("F_GETFD");
1291         break;
1292     case TARGET_F_SETFD:
1293         gemu_log("F_SETFD,");
1294         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1295         break;
1296     case TARGET_F_GETFL:
1297         gemu_log("F_GETFL");
1298         break;
1299     case TARGET_F_SETFL:
1300         gemu_log("F_SETFL,");
1301         print_open_flags(arg2, 1);
1302         break;
1303     case TARGET_F_GETLK:
1304         gemu_log("F_GETLK,");
1305         print_pointer(arg2, 1);
1306         break;
1307     case TARGET_F_SETLK:
1308         gemu_log("F_SETLK,");
1309         print_pointer(arg2, 1);
1310         break;
1311     case TARGET_F_SETLKW:
1312         gemu_log("F_SETLKW,");
1313         print_pointer(arg2, 1);
1314         break;
1315     case TARGET_F_GETOWN:
1316         gemu_log("F_GETOWN");
1317         break;
1318     case TARGET_F_SETOWN:
1319         gemu_log("F_SETOWN,");
1320         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1321         break;
1322     case TARGET_F_GETSIG:
1323         gemu_log("F_GETSIG");
1324         break;
1325     case TARGET_F_SETSIG:
1326         gemu_log("F_SETSIG,");
1327         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1328         break;
1329 #if TARGET_ABI_BITS == 32
1330     case TARGET_F_GETLK64:
1331         gemu_log("F_GETLK64,");
1332         print_pointer(arg2, 1);
1333         break;
1334     case TARGET_F_SETLK64:
1335         gemu_log("F_SETLK64,");
1336         print_pointer(arg2, 1);
1337         break;
1338     case TARGET_F_SETLKW64:
1339         gemu_log("F_SETLKW64,");
1340         print_pointer(arg2, 1);
1341         break;
1342 #endif
1343     case TARGET_F_SETLEASE:
1344         gemu_log("F_SETLEASE,");
1345         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1346         break;
1347     case TARGET_F_GETLEASE:
1348         gemu_log("F_GETLEASE");
1349         break;
1350     case TARGET_F_SETPIPE_SZ:
1351         gemu_log("F_SETPIPE_SZ,");
1352         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1353         break;
1354     case TARGET_F_GETPIPE_SZ:
1355         gemu_log("F_GETPIPE_SZ");
1356         break;
1357     case TARGET_F_DUPFD_CLOEXEC:
1358         gemu_log("F_DUPFD_CLOEXEC,");
1359         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1360         break;
1361     case TARGET_F_NOTIFY:
1362         gemu_log("F_NOTIFY,");
1363         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1364         break;
1365     default:
1366         print_raw_param(TARGET_ABI_FMT_ld, arg1, 0);
1367         print_pointer(arg2, 1);
1368         break;
1369     }
1370     print_syscall_epilogue(name);
1371 }
1372 #define print_fcntl64   print_fcntl
1373 #endif
1374 
1375 
1376 #ifdef TARGET_NR_futimesat
1377 static void
1378 print_futimesat(const struct syscallname *name,
1379     abi_long arg0, abi_long arg1, abi_long arg2,
1380     abi_long arg3, abi_long arg4, abi_long arg5)
1381 {
1382     print_syscall_prologue(name);
1383     print_at_dirfd(arg0, 0);
1384     print_string(arg1, 0);
1385     print_timeval(arg2, 0);
1386     print_timeval(arg2 + sizeof (struct target_timeval), 1);
1387     print_syscall_epilogue(name);
1388 }
1389 #endif
1390 
1391 #ifdef TARGET_NR_link
1392 static void
1393 print_link(const struct syscallname *name,
1394     abi_long arg0, abi_long arg1, abi_long arg2,
1395     abi_long arg3, abi_long arg4, abi_long arg5)
1396 {
1397     print_syscall_prologue(name);
1398     print_string(arg0, 0);
1399     print_string(arg1, 1);
1400     print_syscall_epilogue(name);
1401 }
1402 #endif
1403 
1404 #ifdef TARGET_NR_linkat
1405 static void
1406 print_linkat(const struct syscallname *name,
1407     abi_long arg0, abi_long arg1, abi_long arg2,
1408     abi_long arg3, abi_long arg4, abi_long arg5)
1409 {
1410     print_syscall_prologue(name);
1411     print_at_dirfd(arg0, 0);
1412     print_string(arg1, 0);
1413     print_at_dirfd(arg2, 0);
1414     print_string(arg3, 0);
1415     print_flags(at_file_flags, arg4, 1);
1416     print_syscall_epilogue(name);
1417 }
1418 #endif
1419 
1420 #ifdef TARGET_NR__llseek
1421 static void
1422 print__llseek(const struct syscallname *name,
1423     abi_long arg0, abi_long arg1, abi_long arg2,
1424     abi_long arg3, abi_long arg4, abi_long arg5)
1425 {
1426     const char *whence = "UNKNOWN";
1427     print_syscall_prologue(name);
1428     print_raw_param("%d", arg0, 0);
1429     print_raw_param("%ld", arg1, 0);
1430     print_raw_param("%ld", arg2, 0);
1431     print_pointer(arg3, 0);
1432     switch(arg4) {
1433     case SEEK_SET: whence = "SEEK_SET"; break;
1434     case SEEK_CUR: whence = "SEEK_CUR"; break;
1435     case SEEK_END: whence = "SEEK_END"; break;
1436     }
1437     gemu_log("%s",whence);
1438     print_syscall_epilogue(name);
1439 }
1440 #endif
1441 
1442 #if defined(TARGET_NR_socket)
1443 static void
1444 print_socket(const struct syscallname *name,
1445              abi_long arg0, abi_long arg1, abi_long arg2,
1446              abi_long arg3, abi_long arg4, abi_long arg5)
1447 {
1448     abi_ulong domain = arg0, type = arg1, protocol = arg2;
1449 
1450     print_syscall_prologue(name);
1451     print_socket_domain(domain);
1452     gemu_log(",");
1453     print_socket_type(type);
1454     gemu_log(",");
1455     if (domain == AF_PACKET ||
1456         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
1457         protocol = tswap16(protocol);
1458     }
1459     print_socket_protocol(domain, type, protocol);
1460     print_syscall_epilogue(name);
1461 }
1462 
1463 #endif
1464 
1465 #if defined(TARGET_NR_socketcall)
1466 
1467 #define get_user_ualx(x, gaddr, idx) \
1468         get_user_ual(x, (gaddr) + (idx) * sizeof(abi_long))
1469 
1470 static void do_print_socket(const char *name, abi_long arg1)
1471 {
1472     abi_ulong domain, type, protocol;
1473 
1474     get_user_ualx(domain, arg1, 0);
1475     get_user_ualx(type, arg1, 1);
1476     get_user_ualx(protocol, arg1, 2);
1477     gemu_log("%s(", name);
1478     print_socket_domain(domain);
1479     gemu_log(",");
1480     print_socket_type(type);
1481     gemu_log(",");
1482     if (domain == AF_PACKET ||
1483         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
1484         protocol = tswap16(protocol);
1485     }
1486     print_socket_protocol(domain, type, protocol);
1487     gemu_log(")");
1488 }
1489 
1490 static void do_print_sockaddr(const char *name, abi_long arg1)
1491 {
1492     abi_ulong sockfd, addr, addrlen;
1493 
1494     get_user_ualx(sockfd, arg1, 0);
1495     get_user_ualx(addr, arg1, 1);
1496     get_user_ualx(addrlen, arg1, 2);
1497 
1498     gemu_log("%s(", name);
1499     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1500     print_sockaddr(addr, addrlen);
1501     gemu_log(")");
1502 }
1503 
1504 static void do_print_listen(const char *name, abi_long arg1)
1505 {
1506     abi_ulong sockfd, backlog;
1507 
1508     get_user_ualx(sockfd, arg1, 0);
1509     get_user_ualx(backlog, arg1, 1);
1510 
1511     gemu_log("%s(", name);
1512     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1513     print_raw_param(TARGET_ABI_FMT_ld, backlog, 1);
1514     gemu_log(")");
1515 }
1516 
1517 static void do_print_socketpair(const char *name, abi_long arg1)
1518 {
1519     abi_ulong domain, type, protocol, tab;
1520 
1521     get_user_ualx(domain, arg1, 0);
1522     get_user_ualx(type, arg1, 1);
1523     get_user_ualx(protocol, arg1, 2);
1524     get_user_ualx(tab, arg1, 3);
1525 
1526     gemu_log("%s(", name);
1527     print_socket_domain(domain);
1528     gemu_log(",");
1529     print_socket_type(type);
1530     gemu_log(",");
1531     print_socket_protocol(domain, type, protocol);
1532     gemu_log(",");
1533     print_raw_param(TARGET_ABI_FMT_lx, tab, 1);
1534     gemu_log(")");
1535 }
1536 
1537 static void do_print_sendrecv(const char *name, abi_long arg1)
1538 {
1539     abi_ulong sockfd, msg, len, flags;
1540 
1541     get_user_ualx(sockfd, arg1, 0);
1542     get_user_ualx(msg, arg1, 1);
1543     get_user_ualx(len, arg1, 2);
1544     get_user_ualx(flags, arg1, 3);
1545 
1546     gemu_log("%s(", name);
1547     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1548     print_buf(msg, len, 0);
1549     print_raw_param(TARGET_ABI_FMT_ld, len, 0);
1550     print_flags(msg_flags, flags, 1);
1551     gemu_log(")");
1552 }
1553 
1554 static void do_print_msgaddr(const char *name, abi_long arg1)
1555 {
1556     abi_ulong sockfd, msg, len, flags, addr, addrlen;
1557 
1558     get_user_ualx(sockfd, arg1, 0);
1559     get_user_ualx(msg, arg1, 1);
1560     get_user_ualx(len, arg1, 2);
1561     get_user_ualx(flags, arg1, 3);
1562     get_user_ualx(addr, arg1, 4);
1563     get_user_ualx(addrlen, arg1, 5);
1564 
1565     gemu_log("%s(", name);
1566     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1567     print_buf(msg, len, 0);
1568     print_raw_param(TARGET_ABI_FMT_ld, len, 0);
1569     print_flags(msg_flags, flags, 0);
1570     print_sockaddr(addr, addrlen);
1571     gemu_log(")");
1572 }
1573 
1574 static void do_print_shutdown(const char *name, abi_long arg1)
1575 {
1576     abi_ulong sockfd, how;
1577 
1578     get_user_ualx(sockfd, arg1, 0);
1579     get_user_ualx(how, arg1, 1);
1580 
1581     gemu_log("shutdown(");
1582     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1583     switch (how) {
1584     case SHUT_RD:
1585         gemu_log("SHUT_RD");
1586         break;
1587     case SHUT_WR:
1588         gemu_log("SHUT_WR");
1589         break;
1590     case SHUT_RDWR:
1591         gemu_log("SHUT_RDWR");
1592         break;
1593     default:
1594         print_raw_param(TARGET_ABI_FMT_ld, how, 1);
1595         break;
1596     }
1597     gemu_log(")");
1598 }
1599 
1600 static void do_print_msg(const char *name, abi_long arg1)
1601 {
1602     abi_ulong sockfd, msg, flags;
1603 
1604     get_user_ualx(sockfd, arg1, 0);
1605     get_user_ualx(msg, arg1, 1);
1606     get_user_ualx(flags, arg1, 2);
1607 
1608     gemu_log("%s(", name);
1609     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1610     print_pointer(msg, 0);
1611     print_flags(msg_flags, flags, 1);
1612     gemu_log(")");
1613 }
1614 
1615 static void do_print_sockopt(const char *name, abi_long arg1)
1616 {
1617     abi_ulong sockfd, level, optname, optval, optlen;
1618 
1619     get_user_ualx(sockfd, arg1, 0);
1620     get_user_ualx(level, arg1, 1);
1621     get_user_ualx(optname, arg1, 2);
1622     get_user_ualx(optval, arg1, 3);
1623     get_user_ualx(optlen, arg1, 4);
1624 
1625     gemu_log("%s(", name);
1626     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1627     switch (level) {
1628     case SOL_TCP:
1629         gemu_log("SOL_TCP,");
1630         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1631         print_pointer(optval, 0);
1632         break;
1633     case SOL_IP:
1634         gemu_log("SOL_IP,");
1635         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1636         print_pointer(optval, 0);
1637         break;
1638     case SOL_RAW:
1639         gemu_log("SOL_RAW,");
1640         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1641         print_pointer(optval, 0);
1642         break;
1643     case TARGET_SOL_SOCKET:
1644         gemu_log("SOL_SOCKET,");
1645         switch (optname) {
1646         case TARGET_SO_DEBUG:
1647             gemu_log("SO_DEBUG,");
1648 print_optint:
1649             print_number(optval, 0);
1650             break;
1651         case TARGET_SO_REUSEADDR:
1652             gemu_log("SO_REUSEADDR,");
1653             goto print_optint;
1654         case TARGET_SO_TYPE:
1655             gemu_log("SO_TYPE,");
1656             goto print_optint;
1657         case TARGET_SO_ERROR:
1658             gemu_log("SO_ERROR,");
1659             goto print_optint;
1660         case TARGET_SO_DONTROUTE:
1661             gemu_log("SO_DONTROUTE,");
1662             goto print_optint;
1663         case TARGET_SO_BROADCAST:
1664             gemu_log("SO_BROADCAST,");
1665             goto print_optint;
1666         case TARGET_SO_SNDBUF:
1667             gemu_log("SO_SNDBUF,");
1668             goto print_optint;
1669         case TARGET_SO_RCVBUF:
1670             gemu_log("SO_RCVBUF,");
1671             goto print_optint;
1672         case TARGET_SO_KEEPALIVE:
1673             gemu_log("SO_KEEPALIVE,");
1674             goto print_optint;
1675         case TARGET_SO_OOBINLINE:
1676             gemu_log("SO_OOBINLINE,");
1677             goto print_optint;
1678         case TARGET_SO_NO_CHECK:
1679             gemu_log("SO_NO_CHECK,");
1680             goto print_optint;
1681         case TARGET_SO_PRIORITY:
1682             gemu_log("SO_PRIORITY,");
1683             goto print_optint;
1684         case TARGET_SO_BSDCOMPAT:
1685             gemu_log("SO_BSDCOMPAT,");
1686             goto print_optint;
1687         case TARGET_SO_PASSCRED:
1688             gemu_log("SO_PASSCRED,");
1689             goto print_optint;
1690         case TARGET_SO_TIMESTAMP:
1691             gemu_log("SO_TIMESTAMP,");
1692             goto print_optint;
1693         case TARGET_SO_RCVLOWAT:
1694             gemu_log("SO_RCVLOWAT,");
1695             goto print_optint;
1696         case TARGET_SO_RCVTIMEO:
1697             gemu_log("SO_RCVTIMEO,");
1698             print_timeval(optval, 0);
1699             break;
1700         case TARGET_SO_SNDTIMEO:
1701             gemu_log("SO_SNDTIMEO,");
1702             print_timeval(optval, 0);
1703             break;
1704         case TARGET_SO_ATTACH_FILTER: {
1705             struct target_sock_fprog *fprog;
1706 
1707             gemu_log("SO_ATTACH_FILTER,");
1708 
1709             if (lock_user_struct(VERIFY_READ, fprog, optval,  0)) {
1710                 struct target_sock_filter *filter;
1711                 gemu_log("{");
1712                 if (lock_user_struct(VERIFY_READ, filter,
1713                                      tswapal(fprog->filter),  0)) {
1714                     int i;
1715                     for (i = 0; i < tswap16(fprog->len) - 1; i++) {
1716                         gemu_log("[%d]{0x%x,%d,%d,0x%x},",
1717                                  i, tswap16(filter[i].code),
1718                                  filter[i].jt, filter[i].jf,
1719                                  tswap32(filter[i].k));
1720                     }
1721                     gemu_log("[%d]{0x%x,%d,%d,0x%x}",
1722                              i, tswap16(filter[i].code),
1723                              filter[i].jt, filter[i].jf,
1724                              tswap32(filter[i].k));
1725                 } else {
1726                     gemu_log(TARGET_ABI_FMT_lx, tswapal(fprog->filter));
1727                 }
1728                 gemu_log(",%d},", tswap16(fprog->len));
1729                 unlock_user(fprog, optval, 0);
1730             } else {
1731                 print_pointer(optval, 0);
1732             }
1733             break;
1734         }
1735         default:
1736             print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1737             print_pointer(optval, 0);
1738             break;
1739         }
1740         break;
1741     default:
1742         print_raw_param(TARGET_ABI_FMT_ld, level, 0);
1743         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1744         print_pointer(optval, 0);
1745         break;
1746     }
1747     print_raw_param(TARGET_ABI_FMT_ld, optlen, 1);
1748     gemu_log(")");
1749 }
1750 
1751 #define PRINT_SOCKOP(name, func) \
1752     [TARGET_SYS_##name] = { #name, func }
1753 
1754 static struct {
1755     const char *name;
1756     void (*print)(const char *, abi_long);
1757 } scall[] = {
1758     PRINT_SOCKOP(SOCKET, do_print_socket),
1759     PRINT_SOCKOP(BIND, do_print_sockaddr),
1760     PRINT_SOCKOP(CONNECT, do_print_sockaddr),
1761     PRINT_SOCKOP(LISTEN, do_print_listen),
1762     PRINT_SOCKOP(ACCEPT, do_print_sockaddr),
1763     PRINT_SOCKOP(GETSOCKNAME, do_print_sockaddr),
1764     PRINT_SOCKOP(GETPEERNAME, do_print_sockaddr),
1765     PRINT_SOCKOP(SOCKETPAIR, do_print_socketpair),
1766     PRINT_SOCKOP(SEND, do_print_sendrecv),
1767     PRINT_SOCKOP(RECV, do_print_sendrecv),
1768     PRINT_SOCKOP(SENDTO, do_print_msgaddr),
1769     PRINT_SOCKOP(RECVFROM, do_print_msgaddr),
1770     PRINT_SOCKOP(SHUTDOWN, do_print_shutdown),
1771     PRINT_SOCKOP(SETSOCKOPT, do_print_sockopt),
1772     PRINT_SOCKOP(GETSOCKOPT, do_print_sockopt),
1773     PRINT_SOCKOP(SENDMSG, do_print_msg),
1774     PRINT_SOCKOP(RECVMSG, do_print_msg),
1775     PRINT_SOCKOP(ACCEPT4, NULL),
1776     PRINT_SOCKOP(RECVMMSG, NULL),
1777     PRINT_SOCKOP(SENDMMSG, NULL),
1778 };
1779 
1780 static void
1781 print_socketcall(const struct syscallname *name,
1782                  abi_long arg0, abi_long arg1, abi_long arg2,
1783                  abi_long arg3, abi_long arg4, abi_long arg5)
1784 {
1785     if (arg0 >= 0 && arg0 < ARRAY_SIZE(scall) && scall[arg0].print) {
1786         scall[arg0].print(scall[arg0].name, arg1);
1787         return;
1788     }
1789     print_syscall_prologue(name);
1790     print_raw_param(TARGET_ABI_FMT_ld, arg0, 0);
1791     print_raw_param(TARGET_ABI_FMT_ld, arg1, 0);
1792     print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1793     print_raw_param(TARGET_ABI_FMT_ld, arg3, 0);
1794     print_raw_param(TARGET_ABI_FMT_ld, arg4, 0);
1795     print_raw_param(TARGET_ABI_FMT_ld, arg5, 0);
1796     print_syscall_epilogue(name);
1797 }
1798 #endif
1799 
1800 #if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) || \
1801     defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64)
1802 static void
1803 print_stat(const struct syscallname *name,
1804     abi_long arg0, abi_long arg1, abi_long arg2,
1805     abi_long arg3, abi_long arg4, abi_long arg5)
1806 {
1807     print_syscall_prologue(name);
1808     print_string(arg0, 0);
1809     print_pointer(arg1, 1);
1810     print_syscall_epilogue(name);
1811 }
1812 #define print_lstat     print_stat
1813 #define print_stat64	print_stat
1814 #define print_lstat64   print_stat
1815 #endif
1816 
1817 #if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
1818 static void
1819 print_fstat(const struct syscallname *name,
1820     abi_long arg0, abi_long arg1, abi_long arg2,
1821     abi_long arg3, abi_long arg4, abi_long arg5)
1822 {
1823     print_syscall_prologue(name);
1824     print_raw_param("%d", arg0, 0);
1825     print_pointer(arg1, 1);
1826     print_syscall_epilogue(name);
1827 }
1828 #define print_fstat64     print_fstat
1829 #endif
1830 
1831 #ifdef TARGET_NR_mkdir
1832 static void
1833 print_mkdir(const struct syscallname *name,
1834     abi_long arg0, abi_long arg1, abi_long arg2,
1835     abi_long arg3, abi_long arg4, abi_long arg5)
1836 {
1837     print_syscall_prologue(name);
1838     print_string(arg0, 0);
1839     print_file_mode(arg1, 1);
1840     print_syscall_epilogue(name);
1841 }
1842 #endif
1843 
1844 #ifdef TARGET_NR_mkdirat
1845 static void
1846 print_mkdirat(const struct syscallname *name,
1847     abi_long arg0, abi_long arg1, abi_long arg2,
1848     abi_long arg3, abi_long arg4, abi_long arg5)
1849 {
1850     print_syscall_prologue(name);
1851     print_at_dirfd(arg0, 0);
1852     print_string(arg1, 0);
1853     print_file_mode(arg2, 1);
1854     print_syscall_epilogue(name);
1855 }
1856 #endif
1857 
1858 #ifdef TARGET_NR_rmdir
1859 static void
1860 print_rmdir(const struct syscallname *name,
1861     abi_long arg0, abi_long arg1, abi_long arg2,
1862     abi_long arg3, abi_long arg4, abi_long arg5)
1863 {
1864     print_syscall_prologue(name);
1865     print_string(arg0, 0);
1866     print_syscall_epilogue(name);
1867 }
1868 #endif
1869 
1870 #ifdef TARGET_NR_rt_sigaction
1871 static void
1872 print_rt_sigaction(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     print_syscall_prologue(name);
1877     print_signal(arg0, 0);
1878     print_pointer(arg1, 0);
1879     print_pointer(arg2, 1);
1880     print_syscall_epilogue(name);
1881 }
1882 #endif
1883 
1884 #ifdef TARGET_NR_rt_sigprocmask
1885 static void
1886 print_rt_sigprocmask(const struct syscallname *name,
1887     abi_long arg0, abi_long arg1, abi_long arg2,
1888     abi_long arg3, abi_long arg4, abi_long arg5)
1889 {
1890     const char *how = "UNKNOWN";
1891     print_syscall_prologue(name);
1892     switch(arg0) {
1893     case TARGET_SIG_BLOCK: how = "SIG_BLOCK"; break;
1894     case TARGET_SIG_UNBLOCK: how = "SIG_UNBLOCK"; break;
1895     case TARGET_SIG_SETMASK: how = "SIG_SETMASK"; break;
1896     }
1897     gemu_log("%s,",how);
1898     print_pointer(arg1, 0);
1899     print_pointer(arg2, 1);
1900     print_syscall_epilogue(name);
1901 }
1902 #endif
1903 
1904 #ifdef TARGET_NR_syslog
1905 static void
1906 print_syslog_action(abi_ulong arg, int last)
1907 {
1908     const char *type;
1909 
1910     switch (arg) {
1911         case TARGET_SYSLOG_ACTION_CLOSE: {
1912             type = "SYSLOG_ACTION_CLOSE";
1913             break;
1914         }
1915         case TARGET_SYSLOG_ACTION_OPEN: {
1916             type = "SYSLOG_ACTION_OPEN";
1917             break;
1918         }
1919         case TARGET_SYSLOG_ACTION_READ: {
1920             type = "SYSLOG_ACTION_READ";
1921             break;
1922         }
1923         case TARGET_SYSLOG_ACTION_READ_ALL: {
1924             type = "SYSLOG_ACTION_READ_ALL";
1925             break;
1926         }
1927         case TARGET_SYSLOG_ACTION_READ_CLEAR: {
1928             type = "SYSLOG_ACTION_READ_CLEAR";
1929             break;
1930         }
1931         case TARGET_SYSLOG_ACTION_CLEAR: {
1932             type = "SYSLOG_ACTION_CLEAR";
1933             break;
1934         }
1935         case TARGET_SYSLOG_ACTION_CONSOLE_OFF: {
1936             type = "SYSLOG_ACTION_CONSOLE_OFF";
1937             break;
1938         }
1939         case TARGET_SYSLOG_ACTION_CONSOLE_ON: {
1940             type = "SYSLOG_ACTION_CONSOLE_ON";
1941             break;
1942         }
1943         case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL: {
1944             type = "SYSLOG_ACTION_CONSOLE_LEVEL";
1945             break;
1946         }
1947         case TARGET_SYSLOG_ACTION_SIZE_UNREAD: {
1948             type = "SYSLOG_ACTION_SIZE_UNREAD";
1949             break;
1950         }
1951         case TARGET_SYSLOG_ACTION_SIZE_BUFFER: {
1952             type = "SYSLOG_ACTION_SIZE_BUFFER";
1953             break;
1954         }
1955         default: {
1956             print_raw_param("%ld", arg, last);
1957             return;
1958         }
1959     }
1960     gemu_log("%s%s", type, get_comma(last));
1961 }
1962 
1963 static void
1964 print_syslog(const struct syscallname *name,
1965     abi_long arg0, abi_long arg1, abi_long arg2,
1966     abi_long arg3, abi_long arg4, abi_long arg5)
1967 {
1968     print_syscall_prologue(name);
1969     print_syslog_action(arg0, 0);
1970     print_pointer(arg1, 0);
1971     print_raw_param("%d", arg2, 1);
1972     print_syscall_epilogue(name);
1973 }
1974 #endif
1975 
1976 #ifdef TARGET_NR_mknod
1977 static void
1978 print_mknod(const struct syscallname *name,
1979     abi_long arg0, abi_long arg1, abi_long arg2,
1980     abi_long arg3, abi_long arg4, abi_long arg5)
1981 {
1982     int hasdev = (arg1 & (S_IFCHR|S_IFBLK));
1983 
1984     print_syscall_prologue(name);
1985     print_string(arg0, 0);
1986     print_file_mode(arg1, (hasdev == 0));
1987     if (hasdev) {
1988         print_raw_param("makedev(%d", major(arg2), 0);
1989         print_raw_param("%d)", minor(arg2), 1);
1990     }
1991     print_syscall_epilogue(name);
1992 }
1993 #endif
1994 
1995 #ifdef TARGET_NR_mknodat
1996 static void
1997 print_mknodat(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     int hasdev = (arg2 & (S_IFCHR|S_IFBLK));
2002 
2003     print_syscall_prologue(name);
2004     print_at_dirfd(arg0, 0);
2005     print_string(arg1, 0);
2006     print_file_mode(arg2, (hasdev == 0));
2007     if (hasdev) {
2008         print_raw_param("makedev(%d", major(arg3), 0);
2009         print_raw_param("%d)", minor(arg3), 1);
2010     }
2011     print_syscall_epilogue(name);
2012 }
2013 #endif
2014 
2015 #ifdef TARGET_NR_mq_open
2016 static void
2017 print_mq_open(const struct syscallname *name,
2018     abi_long arg0, abi_long arg1, abi_long arg2,
2019     abi_long arg3, abi_long arg4, abi_long arg5)
2020 {
2021     int is_creat = (arg1 & TARGET_O_CREAT);
2022 
2023     print_syscall_prologue(name);
2024     print_string(arg0, 0);
2025     print_open_flags(arg1, (is_creat == 0));
2026     if (is_creat) {
2027         print_file_mode(arg2, 0);
2028         print_pointer(arg3, 1);
2029     }
2030     print_syscall_epilogue(name);
2031 }
2032 #endif
2033 
2034 #ifdef TARGET_NR_open
2035 static void
2036 print_open(const struct syscallname *name,
2037     abi_long arg0, abi_long arg1, abi_long arg2,
2038     abi_long arg3, abi_long arg4, abi_long arg5)
2039 {
2040     int is_creat = (arg1 & TARGET_O_CREAT);
2041 
2042     print_syscall_prologue(name);
2043     print_string(arg0, 0);
2044     print_open_flags(arg1, (is_creat == 0));
2045     if (is_creat)
2046         print_file_mode(arg2, 1);
2047     print_syscall_epilogue(name);
2048 }
2049 #endif
2050 
2051 #ifdef TARGET_NR_openat
2052 static void
2053 print_openat(const struct syscallname *name,
2054     abi_long arg0, abi_long arg1, abi_long arg2,
2055     abi_long arg3, abi_long arg4, abi_long arg5)
2056 {
2057     int is_creat = (arg2 & TARGET_O_CREAT);
2058 
2059     print_syscall_prologue(name);
2060     print_at_dirfd(arg0, 0);
2061     print_string(arg1, 0);
2062     print_open_flags(arg2, (is_creat == 0));
2063     if (is_creat)
2064         print_file_mode(arg3, 1);
2065     print_syscall_epilogue(name);
2066 }
2067 #endif
2068 
2069 #ifdef TARGET_NR_mq_unlink
2070 static void
2071 print_mq_unlink(const struct syscallname *name,
2072     abi_long arg0, abi_long arg1, abi_long arg2,
2073     abi_long arg3, abi_long arg4, abi_long arg5)
2074 {
2075     print_syscall_prologue(name);
2076     print_string(arg0, 1);
2077     print_syscall_epilogue(name);
2078 }
2079 #endif
2080 
2081 #if defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)
2082 static void
2083 print_fstatat64(const struct syscallname *name,
2084     abi_long arg0, abi_long arg1, abi_long arg2,
2085     abi_long arg3, abi_long arg4, abi_long arg5)
2086 {
2087     print_syscall_prologue(name);
2088     print_at_dirfd(arg0, 0);
2089     print_string(arg1, 0);
2090     print_pointer(arg2, 0);
2091     print_flags(at_file_flags, arg3, 1);
2092     print_syscall_epilogue(name);
2093 }
2094 #define print_newfstatat    print_fstatat64
2095 #endif
2096 
2097 #ifdef TARGET_NR_readlink
2098 static void
2099 print_readlink(const struct syscallname *name,
2100     abi_long arg0, abi_long arg1, abi_long arg2,
2101     abi_long arg3, abi_long arg4, abi_long arg5)
2102 {
2103     print_syscall_prologue(name);
2104     print_string(arg0, 0);
2105     print_pointer(arg1, 0);
2106     print_raw_param("%u", arg2, 1);
2107     print_syscall_epilogue(name);
2108 }
2109 #endif
2110 
2111 #ifdef TARGET_NR_readlinkat
2112 static void
2113 print_readlinkat(const struct syscallname *name,
2114     abi_long arg0, abi_long arg1, abi_long arg2,
2115     abi_long arg3, abi_long arg4, abi_long arg5)
2116 {
2117     print_syscall_prologue(name);
2118     print_at_dirfd(arg0, 0);
2119     print_string(arg1, 0);
2120     print_pointer(arg2, 0);
2121     print_raw_param("%u", arg3, 1);
2122     print_syscall_epilogue(name);
2123 }
2124 #endif
2125 
2126 #ifdef TARGET_NR_rename
2127 static void
2128 print_rename(const struct syscallname *name,
2129     abi_long arg0, abi_long arg1, abi_long arg2,
2130     abi_long arg3, abi_long arg4, abi_long arg5)
2131 {
2132     print_syscall_prologue(name);
2133     print_string(arg0, 0);
2134     print_string(arg1, 1);
2135     print_syscall_epilogue(name);
2136 }
2137 #endif
2138 
2139 #ifdef TARGET_NR_renameat
2140 static void
2141 print_renameat(const struct syscallname *name,
2142     abi_long arg0, abi_long arg1, abi_long arg2,
2143     abi_long arg3, abi_long arg4, abi_long arg5)
2144 {
2145     print_syscall_prologue(name);
2146     print_at_dirfd(arg0, 0);
2147     print_string(arg1, 0);
2148     print_at_dirfd(arg2, 0);
2149     print_string(arg3, 1);
2150     print_syscall_epilogue(name);
2151 }
2152 #endif
2153 
2154 #ifdef TARGET_NR_statfs
2155 static void
2156 print_statfs(const struct syscallname *name,
2157     abi_long arg0, abi_long arg1, abi_long arg2,
2158     abi_long arg3, abi_long arg4, abi_long arg5)
2159 {
2160     print_syscall_prologue(name);
2161     print_string(arg0, 0);
2162     print_pointer(arg1, 1);
2163     print_syscall_epilogue(name);
2164 }
2165 #define print_statfs64  print_statfs
2166 #endif
2167 
2168 #ifdef TARGET_NR_symlink
2169 static void
2170 print_symlink(const struct syscallname *name,
2171     abi_long arg0, abi_long arg1, abi_long arg2,
2172     abi_long arg3, abi_long arg4, abi_long arg5)
2173 {
2174     print_syscall_prologue(name);
2175     print_string(arg0, 0);
2176     print_string(arg1, 1);
2177     print_syscall_epilogue(name);
2178 }
2179 #endif
2180 
2181 #ifdef TARGET_NR_symlinkat
2182 static void
2183 print_symlinkat(const struct syscallname *name,
2184     abi_long arg0, abi_long arg1, abi_long arg2,
2185     abi_long arg3, abi_long arg4, abi_long arg5)
2186 {
2187     print_syscall_prologue(name);
2188     print_string(arg0, 0);
2189     print_at_dirfd(arg1, 0);
2190     print_string(arg2, 1);
2191     print_syscall_epilogue(name);
2192 }
2193 #endif
2194 
2195 #ifdef TARGET_NR_mount
2196 static void
2197 print_mount(const struct syscallname *name,
2198     abi_long arg0, abi_long arg1, abi_long arg2,
2199     abi_long arg3, abi_long arg4, abi_long arg5)
2200 {
2201     print_syscall_prologue(name);
2202     print_string(arg0, 0);
2203     print_string(arg1, 0);
2204     print_string(arg2, 0);
2205     print_flags(mount_flags, arg3, 0);
2206     print_pointer(arg4, 1);
2207     print_syscall_epilogue(name);
2208 }
2209 #endif
2210 
2211 #ifdef TARGET_NR_umount
2212 static void
2213 print_umount(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 #ifdef TARGET_NR_umount2
2224 static void
2225 print_umount2(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_string(arg0, 0);
2231     print_flags(umount2_flags, arg1, 1);
2232     print_syscall_epilogue(name);
2233 }
2234 #endif
2235 
2236 #ifdef TARGET_NR_unlink
2237 static void
2238 print_unlink(const struct syscallname *name,
2239     abi_long arg0, abi_long arg1, abi_long arg2,
2240     abi_long arg3, abi_long arg4, abi_long arg5)
2241 {
2242     print_syscall_prologue(name);
2243     print_string(arg0, 1);
2244     print_syscall_epilogue(name);
2245 }
2246 #endif
2247 
2248 #ifdef TARGET_NR_unlinkat
2249 static void
2250 print_unlinkat(const struct syscallname *name,
2251     abi_long arg0, abi_long arg1, abi_long arg2,
2252     abi_long arg3, abi_long arg4, abi_long arg5)
2253 {
2254     print_syscall_prologue(name);
2255     print_at_dirfd(arg0, 0);
2256     print_string(arg1, 0);
2257     print_flags(unlinkat_flags, arg2, 1);
2258     print_syscall_epilogue(name);
2259 }
2260 #endif
2261 
2262 #ifdef TARGET_NR_utime
2263 static void
2264 print_utime(const struct syscallname *name,
2265     abi_long arg0, abi_long arg1, abi_long arg2,
2266     abi_long arg3, abi_long arg4, abi_long arg5)
2267 {
2268     print_syscall_prologue(name);
2269     print_string(arg0, 0);
2270     print_pointer(arg1, 1);
2271     print_syscall_epilogue(name);
2272 }
2273 #endif
2274 
2275 #ifdef TARGET_NR_utimes
2276 static void
2277 print_utimes(const struct syscallname *name,
2278     abi_long arg0, abi_long arg1, abi_long arg2,
2279     abi_long arg3, abi_long arg4, abi_long arg5)
2280 {
2281     print_syscall_prologue(name);
2282     print_string(arg0, 0);
2283     print_pointer(arg1, 1);
2284     print_syscall_epilogue(name);
2285 }
2286 #endif
2287 
2288 #ifdef TARGET_NR_utimensat
2289 static void
2290 print_utimensat(const struct syscallname *name,
2291     abi_long arg0, abi_long arg1, abi_long arg2,
2292     abi_long arg3, abi_long arg4, abi_long arg5)
2293 {
2294     print_syscall_prologue(name);
2295     print_at_dirfd(arg0, 0);
2296     print_string(arg1, 0);
2297     print_pointer(arg2, 0);
2298     print_flags(at_file_flags, arg3, 1);
2299     print_syscall_epilogue(name);
2300 }
2301 #endif
2302 
2303 #if defined(TARGET_NR_mmap) || defined(TARGET_NR_mmap2)
2304 static void
2305 print_mmap(const struct syscallname *name,
2306     abi_long arg0, abi_long arg1, abi_long arg2,
2307     abi_long arg3, abi_long arg4, abi_long arg5)
2308 {
2309     print_syscall_prologue(name);
2310     print_pointer(arg0, 0);
2311     print_raw_param("%d", arg1, 0);
2312     print_flags(mmap_prot_flags, arg2, 0);
2313     print_flags(mmap_flags, arg3, 0);
2314     print_raw_param("%d", arg4, 0);
2315     print_raw_param("%#x", arg5, 1);
2316     print_syscall_epilogue(name);
2317 }
2318 #define print_mmap2     print_mmap
2319 #endif
2320 
2321 #ifdef TARGET_NR_mprotect
2322 static void
2323 print_mprotect(const struct syscallname *name,
2324     abi_long arg0, abi_long arg1, abi_long arg2,
2325     abi_long arg3, abi_long arg4, abi_long arg5)
2326 {
2327     print_syscall_prologue(name);
2328     print_pointer(arg0, 0);
2329     print_raw_param("%d", arg1, 0);
2330     print_flags(mmap_prot_flags, arg2, 1);
2331     print_syscall_epilogue(name);
2332 }
2333 #endif
2334 
2335 #ifdef TARGET_NR_munmap
2336 static void
2337 print_munmap(const struct syscallname *name,
2338     abi_long arg0, abi_long arg1, abi_long arg2,
2339     abi_long arg3, abi_long arg4, abi_long arg5)
2340 {
2341     print_syscall_prologue(name);
2342     print_pointer(arg0, 0);
2343     print_raw_param("%d", arg1, 1);
2344     print_syscall_epilogue(name);
2345 }
2346 #endif
2347 
2348 #ifdef TARGET_NR_futex
2349 static void print_futex_op(abi_long tflag, int last)
2350 {
2351 #define print_op(val) \
2352 if( cmd == val ) { \
2353     gemu_log(#val); \
2354     return; \
2355 }
2356 
2357     int cmd = (int)tflag;
2358 #ifdef FUTEX_PRIVATE_FLAG
2359     if (cmd & FUTEX_PRIVATE_FLAG) {
2360         gemu_log("FUTEX_PRIVATE_FLAG|");
2361         cmd &= ~FUTEX_PRIVATE_FLAG;
2362     }
2363 #endif
2364 #ifdef FUTEX_CLOCK_REALTIME
2365     if (cmd & FUTEX_CLOCK_REALTIME) {
2366         gemu_log("FUTEX_CLOCK_REALTIME|");
2367         cmd &= ~FUTEX_CLOCK_REALTIME;
2368     }
2369 #endif
2370     print_op(FUTEX_WAIT)
2371     print_op(FUTEX_WAKE)
2372     print_op(FUTEX_FD)
2373     print_op(FUTEX_REQUEUE)
2374     print_op(FUTEX_CMP_REQUEUE)
2375     print_op(FUTEX_WAKE_OP)
2376     print_op(FUTEX_LOCK_PI)
2377     print_op(FUTEX_UNLOCK_PI)
2378     print_op(FUTEX_TRYLOCK_PI)
2379 #ifdef FUTEX_WAIT_BITSET
2380     print_op(FUTEX_WAIT_BITSET)
2381 #endif
2382 #ifdef FUTEX_WAKE_BITSET
2383     print_op(FUTEX_WAKE_BITSET)
2384 #endif
2385     /* unknown values */
2386     gemu_log("%d",cmd);
2387 }
2388 
2389 static void
2390 print_futex(const struct syscallname *name,
2391     abi_long arg0, abi_long arg1, abi_long arg2,
2392     abi_long arg3, abi_long arg4, abi_long arg5)
2393 {
2394     print_syscall_prologue(name);
2395     print_pointer(arg0, 0);
2396     print_futex_op(arg1, 0);
2397     print_raw_param(",%d", arg2, 0);
2398     print_pointer(arg3, 0); /* struct timespec */
2399     print_pointer(arg4, 0);
2400     print_raw_param("%d", arg4, 1);
2401     print_syscall_epilogue(name);
2402 }
2403 #endif
2404 
2405 #ifdef TARGET_NR_kill
2406 static void
2407 print_kill(const struct syscallname *name,
2408     abi_long arg0, abi_long arg1, abi_long arg2,
2409     abi_long arg3, abi_long arg4, abi_long arg5)
2410 {
2411     print_syscall_prologue(name);
2412     print_raw_param("%d", arg0, 0);
2413     print_signal(arg1, 1);
2414     print_syscall_epilogue(name);
2415 }
2416 #endif
2417 
2418 /*
2419  * An array of all of the syscalls we know about
2420  */
2421 
2422 static const struct syscallname scnames[] = {
2423 #include "strace.list"
2424 };
2425 
2426 static int nsyscalls = ARRAY_SIZE(scnames);
2427 
2428 /*
2429  * The public interface to this module.
2430  */
2431 void
2432 print_syscall(int num,
2433               abi_long arg1, abi_long arg2, abi_long arg3,
2434               abi_long arg4, abi_long arg5, abi_long arg6)
2435 {
2436     int i;
2437     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 ")";
2438 
2439     gemu_log("%d ", getpid() );
2440 
2441     for(i=0;i<nsyscalls;i++)
2442         if( scnames[i].nr == num ) {
2443             if( scnames[i].call != NULL ) {
2444                 scnames[i].call(&scnames[i],arg1,arg2,arg3,arg4,arg5,arg6);
2445             } else {
2446                 /* XXX: this format system is broken because it uses
2447                    host types and host pointers for strings */
2448                 if( scnames[i].format != NULL )
2449                     format = scnames[i].format;
2450                 gemu_log(format,scnames[i].name, arg1,arg2,arg3,arg4,arg5,arg6);
2451             }
2452             return;
2453         }
2454     gemu_log("Unknown syscall %d\n", num);
2455 }
2456 
2457 
2458 void
2459 print_syscall_ret(int num, abi_long ret)
2460 {
2461     int i;
2462     const char *errstr = NULL;
2463 
2464     for(i=0;i<nsyscalls;i++)
2465         if( scnames[i].nr == num ) {
2466             if( scnames[i].result != NULL ) {
2467                 scnames[i].result(&scnames[i],ret);
2468             } else {
2469                 if (ret < 0) {
2470                     errstr = target_strerror(-ret);
2471                 }
2472                 if (errstr) {
2473                     gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n",
2474                              -ret, errstr);
2475                 } else {
2476                     gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
2477                 }
2478             }
2479             break;
2480         }
2481 }
2482 
2483 void print_taken_signal(int target_signum, const target_siginfo_t *tinfo)
2484 {
2485     /* Print the strace output for a signal being taken:
2486      * --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0} ---
2487      */
2488     gemu_log("--- ");
2489     print_signal(target_signum, 1);
2490     gemu_log(" ");
2491     print_siginfo(tinfo);
2492     gemu_log(" ---\n");
2493 }
2494