xref: /openbmc/qemu/linux-user/strace.c (revision ebe15582)
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 UNUSED static struct flags statx_flags[] = {
980 #ifdef AT_EMPTY_PATH
981     FLAG_GENERIC(AT_EMPTY_PATH),
982 #endif
983 #ifdef AT_NO_AUTOMOUNT
984     FLAG_GENERIC(AT_NO_AUTOMOUNT),
985 #endif
986 #ifdef AT_SYMLINK_NOFOLLOW
987     FLAG_GENERIC(AT_SYMLINK_NOFOLLOW),
988 #endif
989 #ifdef AT_STATX_SYNC_AS_STAT
990     FLAG_GENERIC(AT_STATX_SYNC_AS_STAT),
991 #endif
992 #ifdef AT_STATX_FORCE_SYNC
993     FLAG_GENERIC(AT_STATX_FORCE_SYNC),
994 #endif
995 #ifdef AT_STATX_DONT_SYNC
996     FLAG_GENERIC(AT_STATX_DONT_SYNC),
997 #endif
998     FLAG_END,
999 };
1000 
1001 UNUSED static struct flags statx_mask[] = {
1002 /* This must come first, because it includes everything.  */
1003 #ifdef STATX_ALL
1004     FLAG_GENERIC(STATX_ALL),
1005 #endif
1006 /* This must come second; it includes everything except STATX_BTIME.  */
1007 #ifdef STATX_BASIC_STATS
1008     FLAG_GENERIC(STATX_BASIC_STATS),
1009 #endif
1010 #ifdef STATX_TYPE
1011     FLAG_GENERIC(STATX_TYPE),
1012 #endif
1013 #ifdef STATX_MODE
1014     FLAG_GENERIC(STATX_MODE),
1015 #endif
1016 #ifdef STATX_NLINK
1017     FLAG_GENERIC(STATX_NLINK),
1018 #endif
1019 #ifdef STATX_UID
1020     FLAG_GENERIC(STATX_UID),
1021 #endif
1022 #ifdef STATX_GID
1023     FLAG_GENERIC(STATX_GID),
1024 #endif
1025 #ifdef STATX_ATIME
1026     FLAG_GENERIC(STATX_ATIME),
1027 #endif
1028 #ifdef STATX_MTIME
1029     FLAG_GENERIC(STATX_MTIME),
1030 #endif
1031 #ifdef STATX_CTIME
1032     FLAG_GENERIC(STATX_CTIME),
1033 #endif
1034 #ifdef STATX_INO
1035     FLAG_GENERIC(STATX_INO),
1036 #endif
1037 #ifdef STATX_SIZE
1038     FLAG_GENERIC(STATX_SIZE),
1039 #endif
1040 #ifdef STATX_BLOCKS
1041     FLAG_GENERIC(STATX_BLOCKS),
1042 #endif
1043 #ifdef STATX_BTIME
1044     FLAG_GENERIC(STATX_BTIME),
1045 #endif
1046     FLAG_END,
1047 };
1048 
1049 /*
1050  * print_xxx utility functions.  These are used to print syscall
1051  * parameters in certain format.  All of these have parameter
1052  * named 'last'.  This parameter is used to add comma to output
1053  * when last == 0.
1054  */
1055 
1056 static const char *
1057 get_comma(int last)
1058 {
1059     return ((last) ? "" : ",");
1060 }
1061 
1062 static void
1063 print_flags(const struct flags *f, abi_long flags, int last)
1064 {
1065     const char *sep = "";
1066     int n;
1067 
1068     if ((flags == 0) && (f->f_value == 0)) {
1069         gemu_log("%s%s", f->f_string, get_comma(last));
1070         return;
1071     }
1072     for (n = 0; f->f_string != NULL; f++) {
1073         if ((f->f_value != 0) && ((flags & f->f_value) == f->f_value)) {
1074             gemu_log("%s%s", sep, f->f_string);
1075             flags &= ~f->f_value;
1076             sep = "|";
1077             n++;
1078         }
1079     }
1080 
1081     if (n > 0) {
1082         /* print rest of the flags as numeric */
1083         if (flags != 0) {
1084             gemu_log("%s%#x%s", sep, (unsigned int)flags, get_comma(last));
1085         } else {
1086             gemu_log("%s", get_comma(last));
1087         }
1088     } else {
1089         /* no string version of flags found, print them in hex then */
1090         gemu_log("%#x%s", (unsigned int)flags, get_comma(last));
1091     }
1092 }
1093 
1094 static void
1095 print_at_dirfd(abi_long dirfd, int last)
1096 {
1097 #ifdef AT_FDCWD
1098     if (dirfd == AT_FDCWD) {
1099         gemu_log("AT_FDCWD%s", get_comma(last));
1100         return;
1101     }
1102 #endif
1103     gemu_log("%d%s", (int)dirfd, get_comma(last));
1104 }
1105 
1106 static void
1107 print_file_mode(abi_long mode, int last)
1108 {
1109     const char *sep = "";
1110     const struct flags *m;
1111 
1112     for (m = &mode_flags[0]; m->f_string != NULL; m++) {
1113         if ((m->f_value & mode) == m->f_value) {
1114             gemu_log("%s%s", m->f_string, sep);
1115             sep = "|";
1116             mode &= ~m->f_value;
1117             break;
1118         }
1119     }
1120 
1121     mode &= ~S_IFMT;
1122     /* print rest of the mode as octal */
1123     if (mode != 0)
1124         gemu_log("%s%#o", sep, (unsigned int)mode);
1125 
1126     gemu_log("%s", get_comma(last));
1127 }
1128 
1129 static void
1130 print_open_flags(abi_long flags, int last)
1131 {
1132     print_flags(open_access_flags, flags & TARGET_O_ACCMODE, 1);
1133     flags &= ~TARGET_O_ACCMODE;
1134     if (flags == 0) {
1135         gemu_log("%s", get_comma(last));
1136         return;
1137     }
1138     gemu_log("|");
1139     print_flags(open_flags, flags, last);
1140 }
1141 
1142 static void
1143 print_syscall_prologue(const struct syscallname *sc)
1144 {
1145     gemu_log("%s(", sc->name);
1146 }
1147 
1148 /*ARGSUSED*/
1149 static void
1150 print_syscall_epilogue(const struct syscallname *sc)
1151 {
1152     (void)sc;
1153     gemu_log(")");
1154 }
1155 
1156 static void
1157 print_string(abi_long addr, int last)
1158 {
1159     char *s;
1160 
1161     if ((s = lock_user_string(addr)) != NULL) {
1162         gemu_log("\"%s\"%s", s, get_comma(last));
1163         unlock_user(s, addr, 0);
1164     } else {
1165         /* can't get string out of it, so print it as pointer */
1166         print_pointer(addr, last);
1167     }
1168 }
1169 
1170 #define MAX_PRINT_BUF 40
1171 static void
1172 print_buf(abi_long addr, abi_long len, int last)
1173 {
1174     uint8_t *s;
1175     int i;
1176 
1177     s = lock_user(VERIFY_READ, addr, len, 1);
1178     if (s) {
1179         gemu_log("\"");
1180         for (i = 0; i < MAX_PRINT_BUF && i < len; i++) {
1181             if (isprint(s[i])) {
1182                 gemu_log("%c", s[i]);
1183             } else {
1184                 gemu_log("\\%o", s[i]);
1185             }
1186         }
1187         gemu_log("\"");
1188         if (i != len) {
1189             gemu_log("...");
1190         }
1191         if (!last) {
1192             gemu_log(",");
1193         }
1194         unlock_user(s, addr, 0);
1195     } else {
1196         print_pointer(addr, last);
1197     }
1198 }
1199 
1200 /*
1201  * Prints out raw parameter using given format.  Caller needs
1202  * to do byte swapping if needed.
1203  */
1204 static void
1205 print_raw_param(const char *fmt, abi_long param, int last)
1206 {
1207     char format[64];
1208 
1209     (void) snprintf(format, sizeof (format), "%s%s", fmt, get_comma(last));
1210     gemu_log(format, param);
1211 }
1212 
1213 static void
1214 print_pointer(abi_long p, int last)
1215 {
1216     if (p == 0)
1217         gemu_log("NULL%s", get_comma(last));
1218     else
1219         gemu_log("0x" TARGET_ABI_FMT_lx "%s", p, get_comma(last));
1220 }
1221 
1222 /*
1223  * Reads 32-bit (int) number from guest address space from
1224  * address 'addr' and prints it.
1225  */
1226 static void
1227 print_number(abi_long addr, int last)
1228 {
1229     if (addr == 0) {
1230         gemu_log("NULL%s", get_comma(last));
1231     } else {
1232         int num;
1233 
1234         get_user_s32(num, addr);
1235         gemu_log("[%d]%s", num, get_comma(last));
1236     }
1237 }
1238 
1239 static void
1240 print_timeval(abi_ulong tv_addr, int last)
1241 {
1242     if( tv_addr ) {
1243         struct target_timeval *tv;
1244 
1245         tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1);
1246         if (!tv)
1247             return;
1248         gemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s",
1249             tswapal(tv->tv_sec), tswapal(tv->tv_usec), get_comma(last));
1250         unlock_user(tv, tv_addr, 0);
1251     } else
1252         gemu_log("NULL%s", get_comma(last));
1253 }
1254 
1255 #undef UNUSED
1256 
1257 #ifdef TARGET_NR_accept
1258 static void
1259 print_accept(const struct syscallname *name,
1260     abi_long arg0, abi_long arg1, abi_long arg2,
1261     abi_long arg3, abi_long arg4, abi_long arg5)
1262 {
1263     print_syscall_prologue(name);
1264     print_raw_param("%d", arg0, 0);
1265     print_pointer(arg1, 0);
1266     print_number(arg2, 1);
1267     print_syscall_epilogue(name);
1268 }
1269 #endif
1270 
1271 #ifdef TARGET_NR_access
1272 static void
1273 print_access(const struct syscallname *name,
1274     abi_long arg0, abi_long arg1, abi_long arg2,
1275     abi_long arg3, abi_long arg4, abi_long arg5)
1276 {
1277     print_syscall_prologue(name);
1278     print_string(arg0, 0);
1279     print_flags(access_flags, arg1, 1);
1280     print_syscall_epilogue(name);
1281 }
1282 #endif
1283 
1284 #ifdef TARGET_NR_brk
1285 static void
1286 print_brk(const struct syscallname *name,
1287     abi_long arg0, abi_long arg1, abi_long arg2,
1288     abi_long arg3, abi_long arg4, abi_long arg5)
1289 {
1290     print_syscall_prologue(name);
1291     print_pointer(arg0, 1);
1292     print_syscall_epilogue(name);
1293 }
1294 #endif
1295 
1296 #ifdef TARGET_NR_chdir
1297 static void
1298 print_chdir(const struct syscallname *name,
1299     abi_long arg0, abi_long arg1, abi_long arg2,
1300     abi_long arg3, abi_long arg4, abi_long arg5)
1301 {
1302     print_syscall_prologue(name);
1303     print_string(arg0, 1);
1304     print_syscall_epilogue(name);
1305 }
1306 #endif
1307 
1308 #ifdef TARGET_NR_chroot
1309 static void
1310 print_chroot(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, 1);
1316     print_syscall_epilogue(name);
1317 }
1318 #endif
1319 
1320 #ifdef TARGET_NR_chmod
1321 static void
1322 print_chmod(const struct syscallname *name,
1323     abi_long arg0, abi_long arg1, abi_long arg2,
1324     abi_long arg3, abi_long arg4, abi_long arg5)
1325 {
1326     print_syscall_prologue(name);
1327     print_string(arg0, 0);
1328     print_file_mode(arg1, 1);
1329     print_syscall_epilogue(name);
1330 }
1331 #endif
1332 
1333 #ifdef TARGET_NR_clock_adjtime
1334 static void
1335 print_clock_adjtime(const struct syscallname *name,
1336     abi_long arg0, abi_long arg1, abi_long arg2,
1337     abi_long arg3, abi_long arg4, abi_long arg5)
1338 {
1339     print_syscall_prologue(name);
1340     print_clockid(arg0, 0);
1341     print_pointer(arg1, 1);
1342     print_syscall_epilogue(name);
1343 }
1344 #endif
1345 
1346 #ifdef TARGET_NR_clone
1347 static void do_print_clone(unsigned int flags, abi_ulong newsp,
1348                            abi_ulong parent_tidptr, target_ulong newtls,
1349                            abi_ulong child_tidptr)
1350 {
1351     print_flags(clone_flags, flags, 0);
1352     print_raw_param("child_stack=0x" TARGET_ABI_FMT_lx, newsp, 0);
1353     print_raw_param("parent_tidptr=0x" TARGET_ABI_FMT_lx, parent_tidptr, 0);
1354     print_raw_param("tls=0x" TARGET_ABI_FMT_lx, newtls, 0);
1355     print_raw_param("child_tidptr=0x" TARGET_ABI_FMT_lx, child_tidptr, 1);
1356 }
1357 
1358 static void
1359 print_clone(const struct syscallname *name,
1360     abi_long arg1, abi_long arg2, abi_long arg3,
1361     abi_long arg4, abi_long arg5, abi_long arg6)
1362 {
1363     print_syscall_prologue(name);
1364 #if defined(TARGET_MICROBLAZE)
1365     do_print_clone(arg1, arg2, arg4, arg6, arg5);
1366 #elif defined(TARGET_CLONE_BACKWARDS)
1367     do_print_clone(arg1, arg2, arg3, arg4, arg5);
1368 #elif defined(TARGET_CLONE_BACKWARDS2)
1369     do_print_clone(arg2, arg1, arg3, arg5, arg4);
1370 #else
1371     do_print_clone(arg1, arg2, arg3, arg5, arg4);
1372 #endif
1373     print_syscall_epilogue(name);
1374 }
1375 #endif
1376 
1377 #ifdef TARGET_NR_creat
1378 static void
1379 print_creat(const struct syscallname *name,
1380     abi_long arg0, abi_long arg1, abi_long arg2,
1381     abi_long arg3, abi_long arg4, abi_long arg5)
1382 {
1383     print_syscall_prologue(name);
1384     print_string(arg0, 0);
1385     print_file_mode(arg1, 1);
1386     print_syscall_epilogue(name);
1387 }
1388 #endif
1389 
1390 #ifdef TARGET_NR_execv
1391 static void
1392 print_execv(const struct syscallname *name,
1393     abi_long arg0, abi_long arg1, abi_long arg2,
1394     abi_long arg3, abi_long arg4, abi_long arg5)
1395 {
1396     print_syscall_prologue(name);
1397     print_string(arg0, 0);
1398     print_raw_param("0x" TARGET_ABI_FMT_lx, arg1, 1);
1399     print_syscall_epilogue(name);
1400 }
1401 #endif
1402 
1403 #ifdef TARGET_NR_faccessat
1404 static void
1405 print_faccessat(const struct syscallname *name,
1406     abi_long arg0, abi_long arg1, abi_long arg2,
1407     abi_long arg3, abi_long arg4, abi_long arg5)
1408 {
1409     print_syscall_prologue(name);
1410     print_at_dirfd(arg0, 0);
1411     print_string(arg1, 0);
1412     print_flags(access_flags, arg2, 0);
1413     print_flags(at_file_flags, arg3, 1);
1414     print_syscall_epilogue(name);
1415 }
1416 #endif
1417 
1418 #ifdef TARGET_NR_fchmodat
1419 static void
1420 print_fchmodat(const struct syscallname *name,
1421     abi_long arg0, abi_long arg1, abi_long arg2,
1422     abi_long arg3, abi_long arg4, abi_long arg5)
1423 {
1424     print_syscall_prologue(name);
1425     print_at_dirfd(arg0, 0);
1426     print_string(arg1, 0);
1427     print_file_mode(arg2, 0);
1428     print_flags(at_file_flags, arg3, 1);
1429     print_syscall_epilogue(name);
1430 }
1431 #endif
1432 
1433 #ifdef TARGET_NR_fchownat
1434 static void
1435 print_fchownat(const struct syscallname *name,
1436     abi_long arg0, abi_long arg1, abi_long arg2,
1437     abi_long arg3, abi_long arg4, abi_long arg5)
1438 {
1439     print_syscall_prologue(name);
1440     print_at_dirfd(arg0, 0);
1441     print_string(arg1, 0);
1442     print_raw_param("%d", arg2, 0);
1443     print_raw_param("%d", arg3, 0);
1444     print_flags(at_file_flags, arg4, 1);
1445     print_syscall_epilogue(name);
1446 }
1447 #endif
1448 
1449 #if defined(TARGET_NR_fcntl) || defined(TARGET_NR_fcntl64)
1450 static void
1451 print_fcntl(const struct syscallname *name,
1452     abi_long arg0, abi_long arg1, abi_long arg2,
1453     abi_long arg3, abi_long arg4, abi_long arg5)
1454 {
1455     print_syscall_prologue(name);
1456     print_raw_param("%d", arg0, 0);
1457     switch(arg1) {
1458     case TARGET_F_DUPFD:
1459         gemu_log("F_DUPFD,");
1460         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1461         break;
1462     case TARGET_F_GETFD:
1463         gemu_log("F_GETFD");
1464         break;
1465     case TARGET_F_SETFD:
1466         gemu_log("F_SETFD,");
1467         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1468         break;
1469     case TARGET_F_GETFL:
1470         gemu_log("F_GETFL");
1471         break;
1472     case TARGET_F_SETFL:
1473         gemu_log("F_SETFL,");
1474         print_open_flags(arg2, 1);
1475         break;
1476     case TARGET_F_GETLK:
1477         gemu_log("F_GETLK,");
1478         print_pointer(arg2, 1);
1479         break;
1480     case TARGET_F_SETLK:
1481         gemu_log("F_SETLK,");
1482         print_pointer(arg2, 1);
1483         break;
1484     case TARGET_F_SETLKW:
1485         gemu_log("F_SETLKW,");
1486         print_pointer(arg2, 1);
1487         break;
1488     case TARGET_F_GETOWN:
1489         gemu_log("F_GETOWN");
1490         break;
1491     case TARGET_F_SETOWN:
1492         gemu_log("F_SETOWN,");
1493         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1494         break;
1495     case TARGET_F_GETSIG:
1496         gemu_log("F_GETSIG");
1497         break;
1498     case TARGET_F_SETSIG:
1499         gemu_log("F_SETSIG,");
1500         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1501         break;
1502 #if TARGET_ABI_BITS == 32
1503     case TARGET_F_GETLK64:
1504         gemu_log("F_GETLK64,");
1505         print_pointer(arg2, 1);
1506         break;
1507     case TARGET_F_SETLK64:
1508         gemu_log("F_SETLK64,");
1509         print_pointer(arg2, 1);
1510         break;
1511     case TARGET_F_SETLKW64:
1512         gemu_log("F_SETLKW64,");
1513         print_pointer(arg2, 1);
1514         break;
1515 #endif
1516     case TARGET_F_SETLEASE:
1517         gemu_log("F_SETLEASE,");
1518         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1519         break;
1520     case TARGET_F_GETLEASE:
1521         gemu_log("F_GETLEASE");
1522         break;
1523     case TARGET_F_SETPIPE_SZ:
1524         gemu_log("F_SETPIPE_SZ,");
1525         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1526         break;
1527     case TARGET_F_GETPIPE_SZ:
1528         gemu_log("F_GETPIPE_SZ");
1529         break;
1530     case TARGET_F_DUPFD_CLOEXEC:
1531         gemu_log("F_DUPFD_CLOEXEC,");
1532         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1533         break;
1534     case TARGET_F_NOTIFY:
1535         gemu_log("F_NOTIFY,");
1536         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1537         break;
1538     default:
1539         print_raw_param(TARGET_ABI_FMT_ld, arg1, 0);
1540         print_pointer(arg2, 1);
1541         break;
1542     }
1543     print_syscall_epilogue(name);
1544 }
1545 #define print_fcntl64   print_fcntl
1546 #endif
1547 
1548 
1549 #ifdef TARGET_NR_futimesat
1550 static void
1551 print_futimesat(const struct syscallname *name,
1552     abi_long arg0, abi_long arg1, abi_long arg2,
1553     abi_long arg3, abi_long arg4, abi_long arg5)
1554 {
1555     print_syscall_prologue(name);
1556     print_at_dirfd(arg0, 0);
1557     print_string(arg1, 0);
1558     print_timeval(arg2, 0);
1559     print_timeval(arg2 + sizeof (struct target_timeval), 1);
1560     print_syscall_epilogue(name);
1561 }
1562 #endif
1563 
1564 #ifdef TARGET_NR_link
1565 static void
1566 print_link(const struct syscallname *name,
1567     abi_long arg0, abi_long arg1, abi_long arg2,
1568     abi_long arg3, abi_long arg4, abi_long arg5)
1569 {
1570     print_syscall_prologue(name);
1571     print_string(arg0, 0);
1572     print_string(arg1, 1);
1573     print_syscall_epilogue(name);
1574 }
1575 #endif
1576 
1577 #ifdef TARGET_NR_linkat
1578 static void
1579 print_linkat(const struct syscallname *name,
1580     abi_long arg0, abi_long arg1, abi_long arg2,
1581     abi_long arg3, abi_long arg4, abi_long arg5)
1582 {
1583     print_syscall_prologue(name);
1584     print_at_dirfd(arg0, 0);
1585     print_string(arg1, 0);
1586     print_at_dirfd(arg2, 0);
1587     print_string(arg3, 0);
1588     print_flags(at_file_flags, arg4, 1);
1589     print_syscall_epilogue(name);
1590 }
1591 #endif
1592 
1593 #ifdef TARGET_NR__llseek
1594 static void
1595 print__llseek(const struct syscallname *name,
1596     abi_long arg0, abi_long arg1, abi_long arg2,
1597     abi_long arg3, abi_long arg4, abi_long arg5)
1598 {
1599     const char *whence = "UNKNOWN";
1600     print_syscall_prologue(name);
1601     print_raw_param("%d", arg0, 0);
1602     print_raw_param("%ld", arg1, 0);
1603     print_raw_param("%ld", arg2, 0);
1604     print_pointer(arg3, 0);
1605     switch(arg4) {
1606     case SEEK_SET: whence = "SEEK_SET"; break;
1607     case SEEK_CUR: whence = "SEEK_CUR"; break;
1608     case SEEK_END: whence = "SEEK_END"; break;
1609     }
1610     gemu_log("%s",whence);
1611     print_syscall_epilogue(name);
1612 }
1613 #endif
1614 
1615 #if defined(TARGET_NR_socket)
1616 static void
1617 print_socket(const struct syscallname *name,
1618              abi_long arg0, abi_long arg1, abi_long arg2,
1619              abi_long arg3, abi_long arg4, abi_long arg5)
1620 {
1621     abi_ulong domain = arg0, type = arg1, protocol = arg2;
1622 
1623     print_syscall_prologue(name);
1624     print_socket_domain(domain);
1625     gemu_log(",");
1626     print_socket_type(type);
1627     gemu_log(",");
1628     if (domain == AF_PACKET ||
1629         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
1630         protocol = tswap16(protocol);
1631     }
1632     print_socket_protocol(domain, type, protocol);
1633     print_syscall_epilogue(name);
1634 }
1635 
1636 #endif
1637 
1638 #if defined(TARGET_NR_socketcall)
1639 
1640 #define get_user_ualx(x, gaddr, idx) \
1641         get_user_ual(x, (gaddr) + (idx) * sizeof(abi_long))
1642 
1643 static void do_print_socket(const char *name, abi_long arg1)
1644 {
1645     abi_ulong domain, type, protocol;
1646 
1647     get_user_ualx(domain, arg1, 0);
1648     get_user_ualx(type, arg1, 1);
1649     get_user_ualx(protocol, arg1, 2);
1650     gemu_log("%s(", name);
1651     print_socket_domain(domain);
1652     gemu_log(",");
1653     print_socket_type(type);
1654     gemu_log(",");
1655     if (domain == AF_PACKET ||
1656         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
1657         protocol = tswap16(protocol);
1658     }
1659     print_socket_protocol(domain, type, protocol);
1660     gemu_log(")");
1661 }
1662 
1663 static void do_print_sockaddr(const char *name, abi_long arg1)
1664 {
1665     abi_ulong sockfd, addr, addrlen;
1666 
1667     get_user_ualx(sockfd, arg1, 0);
1668     get_user_ualx(addr, arg1, 1);
1669     get_user_ualx(addrlen, arg1, 2);
1670 
1671     gemu_log("%s(", name);
1672     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1673     print_sockaddr(addr, addrlen);
1674     gemu_log(")");
1675 }
1676 
1677 static void do_print_listen(const char *name, abi_long arg1)
1678 {
1679     abi_ulong sockfd, backlog;
1680 
1681     get_user_ualx(sockfd, arg1, 0);
1682     get_user_ualx(backlog, arg1, 1);
1683 
1684     gemu_log("%s(", name);
1685     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1686     print_raw_param(TARGET_ABI_FMT_ld, backlog, 1);
1687     gemu_log(")");
1688 }
1689 
1690 static void do_print_socketpair(const char *name, abi_long arg1)
1691 {
1692     abi_ulong domain, type, protocol, tab;
1693 
1694     get_user_ualx(domain, arg1, 0);
1695     get_user_ualx(type, arg1, 1);
1696     get_user_ualx(protocol, arg1, 2);
1697     get_user_ualx(tab, arg1, 3);
1698 
1699     gemu_log("%s(", name);
1700     print_socket_domain(domain);
1701     gemu_log(",");
1702     print_socket_type(type);
1703     gemu_log(",");
1704     print_socket_protocol(domain, type, protocol);
1705     gemu_log(",");
1706     print_raw_param(TARGET_ABI_FMT_lx, tab, 1);
1707     gemu_log(")");
1708 }
1709 
1710 static void do_print_sendrecv(const char *name, abi_long arg1)
1711 {
1712     abi_ulong sockfd, msg, len, flags;
1713 
1714     get_user_ualx(sockfd, arg1, 0);
1715     get_user_ualx(msg, arg1, 1);
1716     get_user_ualx(len, arg1, 2);
1717     get_user_ualx(flags, arg1, 3);
1718 
1719     gemu_log("%s(", name);
1720     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1721     print_buf(msg, len, 0);
1722     print_raw_param(TARGET_ABI_FMT_ld, len, 0);
1723     print_flags(msg_flags, flags, 1);
1724     gemu_log(")");
1725 }
1726 
1727 static void do_print_msgaddr(const char *name, abi_long arg1)
1728 {
1729     abi_ulong sockfd, msg, len, flags, addr, addrlen;
1730 
1731     get_user_ualx(sockfd, arg1, 0);
1732     get_user_ualx(msg, arg1, 1);
1733     get_user_ualx(len, arg1, 2);
1734     get_user_ualx(flags, arg1, 3);
1735     get_user_ualx(addr, arg1, 4);
1736     get_user_ualx(addrlen, arg1, 5);
1737 
1738     gemu_log("%s(", name);
1739     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1740     print_buf(msg, len, 0);
1741     print_raw_param(TARGET_ABI_FMT_ld, len, 0);
1742     print_flags(msg_flags, flags, 0);
1743     print_sockaddr(addr, addrlen);
1744     gemu_log(")");
1745 }
1746 
1747 static void do_print_shutdown(const char *name, abi_long arg1)
1748 {
1749     abi_ulong sockfd, how;
1750 
1751     get_user_ualx(sockfd, arg1, 0);
1752     get_user_ualx(how, arg1, 1);
1753 
1754     gemu_log("shutdown(");
1755     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1756     switch (how) {
1757     case SHUT_RD:
1758         gemu_log("SHUT_RD");
1759         break;
1760     case SHUT_WR:
1761         gemu_log("SHUT_WR");
1762         break;
1763     case SHUT_RDWR:
1764         gemu_log("SHUT_RDWR");
1765         break;
1766     default:
1767         print_raw_param(TARGET_ABI_FMT_ld, how, 1);
1768         break;
1769     }
1770     gemu_log(")");
1771 }
1772 
1773 static void do_print_msg(const char *name, abi_long arg1)
1774 {
1775     abi_ulong sockfd, msg, flags;
1776 
1777     get_user_ualx(sockfd, arg1, 0);
1778     get_user_ualx(msg, arg1, 1);
1779     get_user_ualx(flags, arg1, 2);
1780 
1781     gemu_log("%s(", name);
1782     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1783     print_pointer(msg, 0);
1784     print_flags(msg_flags, flags, 1);
1785     gemu_log(")");
1786 }
1787 
1788 static void do_print_sockopt(const char *name, abi_long arg1)
1789 {
1790     abi_ulong sockfd, level, optname, optval, optlen;
1791 
1792     get_user_ualx(sockfd, arg1, 0);
1793     get_user_ualx(level, arg1, 1);
1794     get_user_ualx(optname, arg1, 2);
1795     get_user_ualx(optval, arg1, 3);
1796     get_user_ualx(optlen, arg1, 4);
1797 
1798     gemu_log("%s(", name);
1799     print_raw_param(TARGET_ABI_FMT_ld, sockfd, 0);
1800     switch (level) {
1801     case SOL_TCP:
1802         gemu_log("SOL_TCP,");
1803         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1804         print_pointer(optval, 0);
1805         break;
1806     case SOL_IP:
1807         gemu_log("SOL_IP,");
1808         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1809         print_pointer(optval, 0);
1810         break;
1811     case SOL_RAW:
1812         gemu_log("SOL_RAW,");
1813         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1814         print_pointer(optval, 0);
1815         break;
1816     case TARGET_SOL_SOCKET:
1817         gemu_log("SOL_SOCKET,");
1818         switch (optname) {
1819         case TARGET_SO_DEBUG:
1820             gemu_log("SO_DEBUG,");
1821 print_optint:
1822             print_number(optval, 0);
1823             break;
1824         case TARGET_SO_REUSEADDR:
1825             gemu_log("SO_REUSEADDR,");
1826             goto print_optint;
1827         case TARGET_SO_REUSEPORT:
1828             gemu_log("SO_REUSEPORT,");
1829             goto print_optint;
1830         case TARGET_SO_TYPE:
1831             gemu_log("SO_TYPE,");
1832             goto print_optint;
1833         case TARGET_SO_ERROR:
1834             gemu_log("SO_ERROR,");
1835             goto print_optint;
1836         case TARGET_SO_DONTROUTE:
1837             gemu_log("SO_DONTROUTE,");
1838             goto print_optint;
1839         case TARGET_SO_BROADCAST:
1840             gemu_log("SO_BROADCAST,");
1841             goto print_optint;
1842         case TARGET_SO_SNDBUF:
1843             gemu_log("SO_SNDBUF,");
1844             goto print_optint;
1845         case TARGET_SO_RCVBUF:
1846             gemu_log("SO_RCVBUF,");
1847             goto print_optint;
1848         case TARGET_SO_KEEPALIVE:
1849             gemu_log("SO_KEEPALIVE,");
1850             goto print_optint;
1851         case TARGET_SO_OOBINLINE:
1852             gemu_log("SO_OOBINLINE,");
1853             goto print_optint;
1854         case TARGET_SO_NO_CHECK:
1855             gemu_log("SO_NO_CHECK,");
1856             goto print_optint;
1857         case TARGET_SO_PRIORITY:
1858             gemu_log("SO_PRIORITY,");
1859             goto print_optint;
1860         case TARGET_SO_BSDCOMPAT:
1861             gemu_log("SO_BSDCOMPAT,");
1862             goto print_optint;
1863         case TARGET_SO_PASSCRED:
1864             gemu_log("SO_PASSCRED,");
1865             goto print_optint;
1866         case TARGET_SO_TIMESTAMP:
1867             gemu_log("SO_TIMESTAMP,");
1868             goto print_optint;
1869         case TARGET_SO_RCVLOWAT:
1870             gemu_log("SO_RCVLOWAT,");
1871             goto print_optint;
1872         case TARGET_SO_RCVTIMEO:
1873             gemu_log("SO_RCVTIMEO,");
1874             print_timeval(optval, 0);
1875             break;
1876         case TARGET_SO_SNDTIMEO:
1877             gemu_log("SO_SNDTIMEO,");
1878             print_timeval(optval, 0);
1879             break;
1880         case TARGET_SO_ATTACH_FILTER: {
1881             struct target_sock_fprog *fprog;
1882 
1883             gemu_log("SO_ATTACH_FILTER,");
1884 
1885             if (lock_user_struct(VERIFY_READ, fprog, optval,  0)) {
1886                 struct target_sock_filter *filter;
1887                 gemu_log("{");
1888                 if (lock_user_struct(VERIFY_READ, filter,
1889                                      tswapal(fprog->filter),  0)) {
1890                     int i;
1891                     for (i = 0; i < tswap16(fprog->len) - 1; i++) {
1892                         gemu_log("[%d]{0x%x,%d,%d,0x%x},",
1893                                  i, tswap16(filter[i].code),
1894                                  filter[i].jt, filter[i].jf,
1895                                  tswap32(filter[i].k));
1896                     }
1897                     gemu_log("[%d]{0x%x,%d,%d,0x%x}",
1898                              i, tswap16(filter[i].code),
1899                              filter[i].jt, filter[i].jf,
1900                              tswap32(filter[i].k));
1901                 } else {
1902                     gemu_log(TARGET_ABI_FMT_lx, tswapal(fprog->filter));
1903                 }
1904                 gemu_log(",%d},", tswap16(fprog->len));
1905                 unlock_user(fprog, optval, 0);
1906             } else {
1907                 print_pointer(optval, 0);
1908             }
1909             break;
1910         }
1911         default:
1912             print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1913             print_pointer(optval, 0);
1914             break;
1915         }
1916         break;
1917     default:
1918         print_raw_param(TARGET_ABI_FMT_ld, level, 0);
1919         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1920         print_pointer(optval, 0);
1921         break;
1922     }
1923     print_raw_param(TARGET_ABI_FMT_ld, optlen, 1);
1924     gemu_log(")");
1925 }
1926 
1927 #define PRINT_SOCKOP(name, func) \
1928     [TARGET_SYS_##name] = { #name, func }
1929 
1930 static struct {
1931     const char *name;
1932     void (*print)(const char *, abi_long);
1933 } scall[] = {
1934     PRINT_SOCKOP(SOCKET, do_print_socket),
1935     PRINT_SOCKOP(BIND, do_print_sockaddr),
1936     PRINT_SOCKOP(CONNECT, do_print_sockaddr),
1937     PRINT_SOCKOP(LISTEN, do_print_listen),
1938     PRINT_SOCKOP(ACCEPT, do_print_sockaddr),
1939     PRINT_SOCKOP(GETSOCKNAME, do_print_sockaddr),
1940     PRINT_SOCKOP(GETPEERNAME, do_print_sockaddr),
1941     PRINT_SOCKOP(SOCKETPAIR, do_print_socketpair),
1942     PRINT_SOCKOP(SEND, do_print_sendrecv),
1943     PRINT_SOCKOP(RECV, do_print_sendrecv),
1944     PRINT_SOCKOP(SENDTO, do_print_msgaddr),
1945     PRINT_SOCKOP(RECVFROM, do_print_msgaddr),
1946     PRINT_SOCKOP(SHUTDOWN, do_print_shutdown),
1947     PRINT_SOCKOP(SETSOCKOPT, do_print_sockopt),
1948     PRINT_SOCKOP(GETSOCKOPT, do_print_sockopt),
1949     PRINT_SOCKOP(SENDMSG, do_print_msg),
1950     PRINT_SOCKOP(RECVMSG, do_print_msg),
1951     PRINT_SOCKOP(ACCEPT4, NULL),
1952     PRINT_SOCKOP(RECVMMSG, NULL),
1953     PRINT_SOCKOP(SENDMMSG, NULL),
1954 };
1955 
1956 static void
1957 print_socketcall(const struct syscallname *name,
1958                  abi_long arg0, abi_long arg1, abi_long arg2,
1959                  abi_long arg3, abi_long arg4, abi_long arg5)
1960 {
1961     if (arg0 >= 0 && arg0 < ARRAY_SIZE(scall) && scall[arg0].print) {
1962         scall[arg0].print(scall[arg0].name, arg1);
1963         return;
1964     }
1965     print_syscall_prologue(name);
1966     print_raw_param(TARGET_ABI_FMT_ld, arg0, 0);
1967     print_raw_param(TARGET_ABI_FMT_ld, arg1, 0);
1968     print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1969     print_raw_param(TARGET_ABI_FMT_ld, arg3, 0);
1970     print_raw_param(TARGET_ABI_FMT_ld, arg4, 0);
1971     print_raw_param(TARGET_ABI_FMT_ld, arg5, 0);
1972     print_syscall_epilogue(name);
1973 }
1974 #endif
1975 
1976 #if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) || \
1977     defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64)
1978 static void
1979 print_stat(const struct syscallname *name,
1980     abi_long arg0, abi_long arg1, abi_long arg2,
1981     abi_long arg3, abi_long arg4, abi_long arg5)
1982 {
1983     print_syscall_prologue(name);
1984     print_string(arg0, 0);
1985     print_pointer(arg1, 1);
1986     print_syscall_epilogue(name);
1987 }
1988 #define print_lstat     print_stat
1989 #define print_stat64	print_stat
1990 #define print_lstat64   print_stat
1991 #endif
1992 
1993 #if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
1994 static void
1995 print_fstat(const struct syscallname *name,
1996     abi_long arg0, abi_long arg1, abi_long arg2,
1997     abi_long arg3, abi_long arg4, abi_long arg5)
1998 {
1999     print_syscall_prologue(name);
2000     print_raw_param("%d", arg0, 0);
2001     print_pointer(arg1, 1);
2002     print_syscall_epilogue(name);
2003 }
2004 #define print_fstat64     print_fstat
2005 #endif
2006 
2007 #ifdef TARGET_NR_mkdir
2008 static void
2009 print_mkdir(const struct syscallname *name,
2010     abi_long arg0, abi_long arg1, abi_long arg2,
2011     abi_long arg3, abi_long arg4, abi_long arg5)
2012 {
2013     print_syscall_prologue(name);
2014     print_string(arg0, 0);
2015     print_file_mode(arg1, 1);
2016     print_syscall_epilogue(name);
2017 }
2018 #endif
2019 
2020 #ifdef TARGET_NR_mkdirat
2021 static void
2022 print_mkdirat(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     print_syscall_prologue(name);
2027     print_at_dirfd(arg0, 0);
2028     print_string(arg1, 0);
2029     print_file_mode(arg2, 1);
2030     print_syscall_epilogue(name);
2031 }
2032 #endif
2033 
2034 #ifdef TARGET_NR_rmdir
2035 static void
2036 print_rmdir(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     print_syscall_prologue(name);
2041     print_string(arg0, 0);
2042     print_syscall_epilogue(name);
2043 }
2044 #endif
2045 
2046 #ifdef TARGET_NR_rt_sigaction
2047 static void
2048 print_rt_sigaction(const struct syscallname *name,
2049     abi_long arg0, abi_long arg1, abi_long arg2,
2050     abi_long arg3, abi_long arg4, abi_long arg5)
2051 {
2052     print_syscall_prologue(name);
2053     print_signal(arg0, 0);
2054     print_pointer(arg1, 0);
2055     print_pointer(arg2, 1);
2056     print_syscall_epilogue(name);
2057 }
2058 #endif
2059 
2060 #ifdef TARGET_NR_rt_sigprocmask
2061 static void
2062 print_rt_sigprocmask(const struct syscallname *name,
2063     abi_long arg0, abi_long arg1, abi_long arg2,
2064     abi_long arg3, abi_long arg4, abi_long arg5)
2065 {
2066     const char *how = "UNKNOWN";
2067     print_syscall_prologue(name);
2068     switch(arg0) {
2069     case TARGET_SIG_BLOCK: how = "SIG_BLOCK"; break;
2070     case TARGET_SIG_UNBLOCK: how = "SIG_UNBLOCK"; break;
2071     case TARGET_SIG_SETMASK: how = "SIG_SETMASK"; break;
2072     }
2073     gemu_log("%s,",how);
2074     print_pointer(arg1, 0);
2075     print_pointer(arg2, 1);
2076     print_syscall_epilogue(name);
2077 }
2078 #endif
2079 
2080 #ifdef TARGET_NR_rt_sigqueueinfo
2081 static void
2082 print_rt_sigqueueinfo(const struct syscallname *name,
2083     abi_long arg0, abi_long arg1, abi_long arg2,
2084     abi_long arg3, abi_long arg4, abi_long arg5)
2085 {
2086     void *p;
2087     target_siginfo_t uinfo;
2088 
2089     print_syscall_prologue(name);
2090     print_raw_param("%d", arg0, 0);
2091     print_signal(arg1, 0);
2092     p = lock_user(VERIFY_READ, arg2, sizeof(target_siginfo_t), 1);
2093     if (p) {
2094         get_target_siginfo(&uinfo, p);
2095         print_siginfo(&uinfo);
2096 
2097         unlock_user(p, arg2, 0);
2098     } else {
2099         print_pointer(arg2, 1);
2100     }
2101     print_syscall_epilogue(name);
2102 }
2103 #endif
2104 
2105 #ifdef TARGET_NR_rt_tgsigqueueinfo
2106 static void
2107 print_rt_tgsigqueueinfo(const struct syscallname *name,
2108     abi_long arg0, abi_long arg1, abi_long arg2,
2109     abi_long arg3, abi_long arg4, abi_long arg5)
2110 {
2111     void *p;
2112     target_siginfo_t uinfo;
2113 
2114     print_syscall_prologue(name);
2115     print_raw_param("%d", arg0, 0);
2116     print_raw_param("%d", arg1, 0);
2117     print_signal(arg2, 0);
2118     p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
2119     if (p) {
2120         get_target_siginfo(&uinfo, p);
2121         print_siginfo(&uinfo);
2122 
2123         unlock_user(p, arg3, 0);
2124     } else {
2125         print_pointer(arg3, 1);
2126     }
2127     print_syscall_epilogue(name);
2128 }
2129 #endif
2130 
2131 #ifdef TARGET_NR_syslog
2132 static void
2133 print_syslog_action(abi_ulong arg, int last)
2134 {
2135     const char *type;
2136 
2137     switch (arg) {
2138         case TARGET_SYSLOG_ACTION_CLOSE: {
2139             type = "SYSLOG_ACTION_CLOSE";
2140             break;
2141         }
2142         case TARGET_SYSLOG_ACTION_OPEN: {
2143             type = "SYSLOG_ACTION_OPEN";
2144             break;
2145         }
2146         case TARGET_SYSLOG_ACTION_READ: {
2147             type = "SYSLOG_ACTION_READ";
2148             break;
2149         }
2150         case TARGET_SYSLOG_ACTION_READ_ALL: {
2151             type = "SYSLOG_ACTION_READ_ALL";
2152             break;
2153         }
2154         case TARGET_SYSLOG_ACTION_READ_CLEAR: {
2155             type = "SYSLOG_ACTION_READ_CLEAR";
2156             break;
2157         }
2158         case TARGET_SYSLOG_ACTION_CLEAR: {
2159             type = "SYSLOG_ACTION_CLEAR";
2160             break;
2161         }
2162         case TARGET_SYSLOG_ACTION_CONSOLE_OFF: {
2163             type = "SYSLOG_ACTION_CONSOLE_OFF";
2164             break;
2165         }
2166         case TARGET_SYSLOG_ACTION_CONSOLE_ON: {
2167             type = "SYSLOG_ACTION_CONSOLE_ON";
2168             break;
2169         }
2170         case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL: {
2171             type = "SYSLOG_ACTION_CONSOLE_LEVEL";
2172             break;
2173         }
2174         case TARGET_SYSLOG_ACTION_SIZE_UNREAD: {
2175             type = "SYSLOG_ACTION_SIZE_UNREAD";
2176             break;
2177         }
2178         case TARGET_SYSLOG_ACTION_SIZE_BUFFER: {
2179             type = "SYSLOG_ACTION_SIZE_BUFFER";
2180             break;
2181         }
2182         default: {
2183             print_raw_param("%ld", arg, last);
2184             return;
2185         }
2186     }
2187     gemu_log("%s%s", type, get_comma(last));
2188 }
2189 
2190 static void
2191 print_syslog(const struct syscallname *name,
2192     abi_long arg0, abi_long arg1, abi_long arg2,
2193     abi_long arg3, abi_long arg4, abi_long arg5)
2194 {
2195     print_syscall_prologue(name);
2196     print_syslog_action(arg0, 0);
2197     print_pointer(arg1, 0);
2198     print_raw_param("%d", arg2, 1);
2199     print_syscall_epilogue(name);
2200 }
2201 #endif
2202 
2203 #ifdef TARGET_NR_mknod
2204 static void
2205 print_mknod(const struct syscallname *name,
2206     abi_long arg0, abi_long arg1, abi_long arg2,
2207     abi_long arg3, abi_long arg4, abi_long arg5)
2208 {
2209     int hasdev = (arg1 & (S_IFCHR|S_IFBLK));
2210 
2211     print_syscall_prologue(name);
2212     print_string(arg0, 0);
2213     print_file_mode(arg1, (hasdev == 0));
2214     if (hasdev) {
2215         print_raw_param("makedev(%d", major(arg2), 0);
2216         print_raw_param("%d)", minor(arg2), 1);
2217     }
2218     print_syscall_epilogue(name);
2219 }
2220 #endif
2221 
2222 #ifdef TARGET_NR_mknodat
2223 static void
2224 print_mknodat(const struct syscallname *name,
2225     abi_long arg0, abi_long arg1, abi_long arg2,
2226     abi_long arg3, abi_long arg4, abi_long arg5)
2227 {
2228     int hasdev = (arg2 & (S_IFCHR|S_IFBLK));
2229 
2230     print_syscall_prologue(name);
2231     print_at_dirfd(arg0, 0);
2232     print_string(arg1, 0);
2233     print_file_mode(arg2, (hasdev == 0));
2234     if (hasdev) {
2235         print_raw_param("makedev(%d", major(arg3), 0);
2236         print_raw_param("%d)", minor(arg3), 1);
2237     }
2238     print_syscall_epilogue(name);
2239 }
2240 #endif
2241 
2242 #ifdef TARGET_NR_mq_open
2243 static void
2244 print_mq_open(const struct syscallname *name,
2245     abi_long arg0, abi_long arg1, abi_long arg2,
2246     abi_long arg3, abi_long arg4, abi_long arg5)
2247 {
2248     int is_creat = (arg1 & TARGET_O_CREAT);
2249 
2250     print_syscall_prologue(name);
2251     print_string(arg0, 0);
2252     print_open_flags(arg1, (is_creat == 0));
2253     if (is_creat) {
2254         print_file_mode(arg2, 0);
2255         print_pointer(arg3, 1);
2256     }
2257     print_syscall_epilogue(name);
2258 }
2259 #endif
2260 
2261 #ifdef TARGET_NR_open
2262 static void
2263 print_open(const struct syscallname *name,
2264     abi_long arg0, abi_long arg1, abi_long arg2,
2265     abi_long arg3, abi_long arg4, abi_long arg5)
2266 {
2267     int is_creat = (arg1 & TARGET_O_CREAT);
2268 
2269     print_syscall_prologue(name);
2270     print_string(arg0, 0);
2271     print_open_flags(arg1, (is_creat == 0));
2272     if (is_creat)
2273         print_file_mode(arg2, 1);
2274     print_syscall_epilogue(name);
2275 }
2276 #endif
2277 
2278 #ifdef TARGET_NR_openat
2279 static void
2280 print_openat(const struct syscallname *name,
2281     abi_long arg0, abi_long arg1, abi_long arg2,
2282     abi_long arg3, abi_long arg4, abi_long arg5)
2283 {
2284     int is_creat = (arg2 & TARGET_O_CREAT);
2285 
2286     print_syscall_prologue(name);
2287     print_at_dirfd(arg0, 0);
2288     print_string(arg1, 0);
2289     print_open_flags(arg2, (is_creat == 0));
2290     if (is_creat)
2291         print_file_mode(arg3, 1);
2292     print_syscall_epilogue(name);
2293 }
2294 #endif
2295 
2296 #ifdef TARGET_NR_mq_unlink
2297 static void
2298 print_mq_unlink(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, 1);
2304     print_syscall_epilogue(name);
2305 }
2306 #endif
2307 
2308 #if defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)
2309 static void
2310 print_fstatat64(const struct syscallname *name,
2311     abi_long arg0, abi_long arg1, abi_long arg2,
2312     abi_long arg3, abi_long arg4, abi_long arg5)
2313 {
2314     print_syscall_prologue(name);
2315     print_at_dirfd(arg0, 0);
2316     print_string(arg1, 0);
2317     print_pointer(arg2, 0);
2318     print_flags(at_file_flags, arg3, 1);
2319     print_syscall_epilogue(name);
2320 }
2321 #define print_newfstatat    print_fstatat64
2322 #endif
2323 
2324 #ifdef TARGET_NR_readlink
2325 static void
2326 print_readlink(const struct syscallname *name,
2327     abi_long arg0, abi_long arg1, abi_long arg2,
2328     abi_long arg3, abi_long arg4, abi_long arg5)
2329 {
2330     print_syscall_prologue(name);
2331     print_string(arg0, 0);
2332     print_pointer(arg1, 0);
2333     print_raw_param("%u", arg2, 1);
2334     print_syscall_epilogue(name);
2335 }
2336 #endif
2337 
2338 #ifdef TARGET_NR_readlinkat
2339 static void
2340 print_readlinkat(const struct syscallname *name,
2341     abi_long arg0, abi_long arg1, abi_long arg2,
2342     abi_long arg3, abi_long arg4, abi_long arg5)
2343 {
2344     print_syscall_prologue(name);
2345     print_at_dirfd(arg0, 0);
2346     print_string(arg1, 0);
2347     print_pointer(arg2, 0);
2348     print_raw_param("%u", arg3, 1);
2349     print_syscall_epilogue(name);
2350 }
2351 #endif
2352 
2353 #ifdef TARGET_NR_rename
2354 static void
2355 print_rename(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, 0);
2361     print_string(arg1, 1);
2362     print_syscall_epilogue(name);
2363 }
2364 #endif
2365 
2366 #ifdef TARGET_NR_renameat
2367 static void
2368 print_renameat(const struct syscallname *name,
2369     abi_long arg0, abi_long arg1, abi_long arg2,
2370     abi_long arg3, abi_long arg4, abi_long arg5)
2371 {
2372     print_syscall_prologue(name);
2373     print_at_dirfd(arg0, 0);
2374     print_string(arg1, 0);
2375     print_at_dirfd(arg2, 0);
2376     print_string(arg3, 1);
2377     print_syscall_epilogue(name);
2378 }
2379 #endif
2380 
2381 #ifdef TARGET_NR_statfs
2382 static void
2383 print_statfs(const struct syscallname *name,
2384     abi_long arg0, abi_long arg1, abi_long arg2,
2385     abi_long arg3, abi_long arg4, abi_long arg5)
2386 {
2387     print_syscall_prologue(name);
2388     print_string(arg0, 0);
2389     print_pointer(arg1, 1);
2390     print_syscall_epilogue(name);
2391 }
2392 #endif
2393 
2394 #ifdef TARGET_NR_statfs64
2395 static void
2396 print_statfs64(const struct syscallname *name,
2397     abi_long arg0, abi_long arg1, abi_long arg2,
2398     abi_long arg3, abi_long arg4, abi_long arg5)
2399 {
2400     print_syscall_prologue(name);
2401     print_string(arg0, 0);
2402     print_pointer(arg1, 1);
2403     print_syscall_epilogue(name);
2404 }
2405 #endif
2406 
2407 #ifdef TARGET_NR_symlink
2408 static void
2409 print_symlink(const struct syscallname *name,
2410     abi_long arg0, abi_long arg1, abi_long arg2,
2411     abi_long arg3, abi_long arg4, abi_long arg5)
2412 {
2413     print_syscall_prologue(name);
2414     print_string(arg0, 0);
2415     print_string(arg1, 1);
2416     print_syscall_epilogue(name);
2417 }
2418 #endif
2419 
2420 #ifdef TARGET_NR_symlinkat
2421 static void
2422 print_symlinkat(const struct syscallname *name,
2423     abi_long arg0, abi_long arg1, abi_long arg2,
2424     abi_long arg3, abi_long arg4, abi_long arg5)
2425 {
2426     print_syscall_prologue(name);
2427     print_string(arg0, 0);
2428     print_at_dirfd(arg1, 0);
2429     print_string(arg2, 1);
2430     print_syscall_epilogue(name);
2431 }
2432 #endif
2433 
2434 #ifdef TARGET_NR_mount
2435 static void
2436 print_mount(const struct syscallname *name,
2437     abi_long arg0, abi_long arg1, abi_long arg2,
2438     abi_long arg3, abi_long arg4, abi_long arg5)
2439 {
2440     print_syscall_prologue(name);
2441     print_string(arg0, 0);
2442     print_string(arg1, 0);
2443     print_string(arg2, 0);
2444     print_flags(mount_flags, arg3, 0);
2445     print_pointer(arg4, 1);
2446     print_syscall_epilogue(name);
2447 }
2448 #endif
2449 
2450 #ifdef TARGET_NR_umount
2451 static void
2452 print_umount(const struct syscallname *name,
2453     abi_long arg0, abi_long arg1, abi_long arg2,
2454     abi_long arg3, abi_long arg4, abi_long arg5)
2455 {
2456     print_syscall_prologue(name);
2457     print_string(arg0, 1);
2458     print_syscall_epilogue(name);
2459 }
2460 #endif
2461 
2462 #ifdef TARGET_NR_umount2
2463 static void
2464 print_umount2(const struct syscallname *name,
2465     abi_long arg0, abi_long arg1, abi_long arg2,
2466     abi_long arg3, abi_long arg4, abi_long arg5)
2467 {
2468     print_syscall_prologue(name);
2469     print_string(arg0, 0);
2470     print_flags(umount2_flags, arg1, 1);
2471     print_syscall_epilogue(name);
2472 }
2473 #endif
2474 
2475 #ifdef TARGET_NR_unlink
2476 static void
2477 print_unlink(const struct syscallname *name,
2478     abi_long arg0, abi_long arg1, abi_long arg2,
2479     abi_long arg3, abi_long arg4, abi_long arg5)
2480 {
2481     print_syscall_prologue(name);
2482     print_string(arg0, 1);
2483     print_syscall_epilogue(name);
2484 }
2485 #endif
2486 
2487 #ifdef TARGET_NR_unlinkat
2488 static void
2489 print_unlinkat(const struct syscallname *name,
2490     abi_long arg0, abi_long arg1, abi_long arg2,
2491     abi_long arg3, abi_long arg4, abi_long arg5)
2492 {
2493     print_syscall_prologue(name);
2494     print_at_dirfd(arg0, 0);
2495     print_string(arg1, 0);
2496     print_flags(unlinkat_flags, arg2, 1);
2497     print_syscall_epilogue(name);
2498 }
2499 #endif
2500 
2501 #ifdef TARGET_NR_utime
2502 static void
2503 print_utime(const struct syscallname *name,
2504     abi_long arg0, abi_long arg1, abi_long arg2,
2505     abi_long arg3, abi_long arg4, abi_long arg5)
2506 {
2507     print_syscall_prologue(name);
2508     print_string(arg0, 0);
2509     print_pointer(arg1, 1);
2510     print_syscall_epilogue(name);
2511 }
2512 #endif
2513 
2514 #ifdef TARGET_NR_utimes
2515 static void
2516 print_utimes(const struct syscallname *name,
2517     abi_long arg0, abi_long arg1, abi_long arg2,
2518     abi_long arg3, abi_long arg4, abi_long arg5)
2519 {
2520     print_syscall_prologue(name);
2521     print_string(arg0, 0);
2522     print_pointer(arg1, 1);
2523     print_syscall_epilogue(name);
2524 }
2525 #endif
2526 
2527 #ifdef TARGET_NR_utimensat
2528 static void
2529 print_utimensat(const struct syscallname *name,
2530     abi_long arg0, abi_long arg1, abi_long arg2,
2531     abi_long arg3, abi_long arg4, abi_long arg5)
2532 {
2533     print_syscall_prologue(name);
2534     print_at_dirfd(arg0, 0);
2535     print_string(arg1, 0);
2536     print_pointer(arg2, 0);
2537     print_flags(at_file_flags, arg3, 1);
2538     print_syscall_epilogue(name);
2539 }
2540 #endif
2541 
2542 #if defined(TARGET_NR_mmap) || defined(TARGET_NR_mmap2)
2543 static void
2544 print_mmap(const struct syscallname *name,
2545     abi_long arg0, abi_long arg1, abi_long arg2,
2546     abi_long arg3, abi_long arg4, abi_long arg5)
2547 {
2548     print_syscall_prologue(name);
2549     print_pointer(arg0, 0);
2550     print_raw_param("%d", arg1, 0);
2551     print_flags(mmap_prot_flags, arg2, 0);
2552     print_flags(mmap_flags, arg3, 0);
2553     print_raw_param("%d", arg4, 0);
2554     print_raw_param("%#x", arg5, 1);
2555     print_syscall_epilogue(name);
2556 }
2557 #define print_mmap2     print_mmap
2558 #endif
2559 
2560 #ifdef TARGET_NR_mprotect
2561 static void
2562 print_mprotect(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_pointer(arg0, 0);
2568     print_raw_param("%d", arg1, 0);
2569     print_flags(mmap_prot_flags, arg2, 1);
2570     print_syscall_epilogue(name);
2571 }
2572 #endif
2573 
2574 #ifdef TARGET_NR_munmap
2575 static void
2576 print_munmap(const struct syscallname *name,
2577     abi_long arg0, abi_long arg1, abi_long arg2,
2578     abi_long arg3, abi_long arg4, abi_long arg5)
2579 {
2580     print_syscall_prologue(name);
2581     print_pointer(arg0, 0);
2582     print_raw_param("%d", arg1, 1);
2583     print_syscall_epilogue(name);
2584 }
2585 #endif
2586 
2587 #ifdef TARGET_NR_futex
2588 static void print_futex_op(abi_long tflag, int last)
2589 {
2590 #define print_op(val) \
2591 if( cmd == val ) { \
2592     gemu_log(#val); \
2593     return; \
2594 }
2595 
2596     int cmd = (int)tflag;
2597 #ifdef FUTEX_PRIVATE_FLAG
2598     if (cmd & FUTEX_PRIVATE_FLAG) {
2599         gemu_log("FUTEX_PRIVATE_FLAG|");
2600         cmd &= ~FUTEX_PRIVATE_FLAG;
2601     }
2602 #endif
2603 #ifdef FUTEX_CLOCK_REALTIME
2604     if (cmd & FUTEX_CLOCK_REALTIME) {
2605         gemu_log("FUTEX_CLOCK_REALTIME|");
2606         cmd &= ~FUTEX_CLOCK_REALTIME;
2607     }
2608 #endif
2609     print_op(FUTEX_WAIT)
2610     print_op(FUTEX_WAKE)
2611     print_op(FUTEX_FD)
2612     print_op(FUTEX_REQUEUE)
2613     print_op(FUTEX_CMP_REQUEUE)
2614     print_op(FUTEX_WAKE_OP)
2615     print_op(FUTEX_LOCK_PI)
2616     print_op(FUTEX_UNLOCK_PI)
2617     print_op(FUTEX_TRYLOCK_PI)
2618 #ifdef FUTEX_WAIT_BITSET
2619     print_op(FUTEX_WAIT_BITSET)
2620 #endif
2621 #ifdef FUTEX_WAKE_BITSET
2622     print_op(FUTEX_WAKE_BITSET)
2623 #endif
2624     /* unknown values */
2625     gemu_log("%d",cmd);
2626 }
2627 
2628 static void
2629 print_futex(const struct syscallname *name,
2630     abi_long arg0, abi_long arg1, abi_long arg2,
2631     abi_long arg3, abi_long arg4, abi_long arg5)
2632 {
2633     print_syscall_prologue(name);
2634     print_pointer(arg0, 0);
2635     print_futex_op(arg1, 0);
2636     print_raw_param(",%d", arg2, 0);
2637     print_pointer(arg3, 0); /* struct timespec */
2638     print_pointer(arg4, 0);
2639     print_raw_param("%d", arg4, 1);
2640     print_syscall_epilogue(name);
2641 }
2642 #endif
2643 
2644 #ifdef TARGET_NR_kill
2645 static void
2646 print_kill(const struct syscallname *name,
2647     abi_long arg0, abi_long arg1, abi_long arg2,
2648     abi_long arg3, abi_long arg4, abi_long arg5)
2649 {
2650     print_syscall_prologue(name);
2651     print_raw_param("%d", arg0, 0);
2652     print_signal(arg1, 1);
2653     print_syscall_epilogue(name);
2654 }
2655 #endif
2656 
2657 #ifdef TARGET_NR_tkill
2658 static void
2659 print_tkill(const struct syscallname *name,
2660     abi_long arg0, abi_long arg1, abi_long arg2,
2661     abi_long arg3, abi_long arg4, abi_long arg5)
2662 {
2663     print_syscall_prologue(name);
2664     print_raw_param("%d", arg0, 0);
2665     print_signal(arg1, 1);
2666     print_syscall_epilogue(name);
2667 }
2668 #endif
2669 
2670 #ifdef TARGET_NR_tgkill
2671 static void
2672 print_tgkill(const struct syscallname *name,
2673     abi_long arg0, abi_long arg1, abi_long arg2,
2674     abi_long arg3, abi_long arg4, abi_long arg5)
2675 {
2676     print_syscall_prologue(name);
2677     print_raw_param("%d", arg0, 0);
2678     print_raw_param("%d", arg1, 0);
2679     print_signal(arg2, 1);
2680     print_syscall_epilogue(name);
2681 }
2682 #endif
2683 
2684 #ifdef TARGET_NR_statx
2685 static void
2686 print_statx(const struct syscallname *name,
2687             abi_long arg0, abi_long arg1, abi_long arg2,
2688             abi_long arg3, abi_long arg4, abi_long arg5)
2689 {
2690     print_syscall_prologue(name);
2691     print_at_dirfd(arg0, 0);
2692     print_string(arg1, 0);
2693     print_flags(statx_flags, arg2, 0);
2694     print_flags(statx_mask, arg3, 0);
2695     print_pointer(arg4, 1);
2696     print_syscall_epilogue(name);
2697 }
2698 #endif
2699 
2700 /*
2701  * An array of all of the syscalls we know about
2702  */
2703 
2704 static const struct syscallname scnames[] = {
2705 #include "strace.list"
2706 };
2707 
2708 static int nsyscalls = ARRAY_SIZE(scnames);
2709 
2710 /*
2711  * The public interface to this module.
2712  */
2713 void
2714 print_syscall(int num,
2715               abi_long arg1, abi_long arg2, abi_long arg3,
2716               abi_long arg4, abi_long arg5, abi_long arg6)
2717 {
2718     int i;
2719     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 ")";
2720 
2721     gemu_log("%d ", getpid() );
2722 
2723     for(i=0;i<nsyscalls;i++)
2724         if( scnames[i].nr == num ) {
2725             if( scnames[i].call != NULL ) {
2726                 scnames[i].call(&scnames[i],arg1,arg2,arg3,arg4,arg5,arg6);
2727             } else {
2728                 /* XXX: this format system is broken because it uses
2729                    host types and host pointers for strings */
2730                 if( scnames[i].format != NULL )
2731                     format = scnames[i].format;
2732                 gemu_log(format,scnames[i].name, arg1,arg2,arg3,arg4,arg5,arg6);
2733             }
2734             return;
2735         }
2736     gemu_log("Unknown syscall %d\n", num);
2737 }
2738 
2739 
2740 void
2741 print_syscall_ret(int num, abi_long ret)
2742 {
2743     int i;
2744     const char *errstr = NULL;
2745 
2746     for(i=0;i<nsyscalls;i++)
2747         if( scnames[i].nr == num ) {
2748             if( scnames[i].result != NULL ) {
2749                 scnames[i].result(&scnames[i],ret);
2750             } else {
2751                 if (ret < 0) {
2752                     errstr = target_strerror(-ret);
2753                 }
2754                 if (errstr) {
2755                     gemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n",
2756                              -ret, errstr);
2757                 } else {
2758                     gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
2759                 }
2760             }
2761             break;
2762         }
2763 }
2764 
2765 void print_taken_signal(int target_signum, const target_siginfo_t *tinfo)
2766 {
2767     /* Print the strace output for a signal being taken:
2768      * --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0} ---
2769      */
2770     gemu_log("--- ");
2771     print_signal(target_signum, 1);
2772     gemu_log(" ");
2773     print_siginfo(tinfo);
2774     gemu_log(" ---\n");
2775 }
2776