xref: /qemu/linux-user/strace.c (revision 27a4a30e)
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 <linux/netlink.h>
12 #include <sched.h>
13 #include "qemu.h"
14 
15 struct syscallname {
16     int nr;
17     const char *name;
18     const char *format;
19     void (*call)(const struct syscallname *,
20                  abi_long, abi_long, abi_long,
21                  abi_long, abi_long, abi_long);
22     void (*result)(const struct syscallname *, abi_long);
23 };
24 
25 #ifdef __GNUC__
26 /*
27  * It is possible that target doesn't have syscall that uses
28  * following flags but we don't want the compiler to warn
29  * us about them being unused.  Same applies to utility print
30  * functions.  It is ok to keep them while not used.
31  */
32 #define UNUSED __attribute__ ((unused))
33 #else
34 #define UNUSED
35 #endif
36 
37 /*
38  * Structure used to translate flag values into strings.  This is
39  * similar that is in the actual strace tool.
40  */
41 struct flags {
42     abi_long    f_value;  /* flag */
43     const char  *f_string; /* stringified flag */
44 };
45 
46 /* common flags for all architectures */
47 #define FLAG_GENERIC(name) { name, #name }
48 /* target specific flags (syscall_defs.h has TARGET_<flag>) */
49 #define FLAG_TARGET(name)  { TARGET_ ## name, #name }
50 /* end of flags array */
51 #define FLAG_END           { 0, NULL }
52 
53 UNUSED static const char *get_comma(int);
54 UNUSED static void print_pointer(abi_long, int);
55 UNUSED static void print_flags(const struct flags *, abi_long, int);
56 UNUSED static void print_at_dirfd(abi_long, int);
57 UNUSED static void print_file_mode(abi_long, int);
58 UNUSED static void print_open_flags(abi_long, int);
59 UNUSED static void print_syscall_prologue(const struct syscallname *);
60 UNUSED static void print_syscall_epilogue(const struct syscallname *);
61 UNUSED static void print_string(abi_long, int);
62 UNUSED static void print_buf(abi_long addr, abi_long len, int last);
63 UNUSED static void print_raw_param(const char *, abi_long, int);
64 UNUSED static void print_timeval(abi_ulong, int);
65 UNUSED static void print_timezone(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, abi_long, int);
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     qemu_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     qemu_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     qemu_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         qemu_log("%d", arg);
186         return;
187     }
188     qemu_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     qemu_log("{si_signo=");
290     print_signal(tinfo->si_signo, 1);
291     qemu_log(", si_code=");
292     print_si_code(si_code);
293 
294     switch (si_type) {
295     case QEMU_SI_KILL:
296         qemu_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         qemu_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         qemu_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         qemu_log(", si_addr=");
312         print_pointer(tinfo->_sifields._sigfault._addr, 1);
313         break;
314     case QEMU_SI_CHLD:
315         qemu_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         qemu_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     qemu_log("}");
334 }
335 
336 static void
337 print_sockaddr(abi_ulong addr, abi_long addrlen, int last)
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             qemu_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                 qemu_log("%c", un->sun_path[i]);
355             }
356             qemu_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             qemu_log("{sin_family=AF_INET,sin_port=htons(%d),",
363                      ntohs(in->sin_port));
364             qemu_log("sin_addr=inet_addr(\"%d.%d.%d.%d\")",
365                      c[0], c[1], c[2], c[3]);
366             qemu_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             qemu_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                 qemu_log("PACKET_HOST");
378                 break;
379             case PACKET_BROADCAST:
380                 qemu_log("PACKET_BROADCAST");
381                 break;
382             case PACKET_MULTICAST:
383                 qemu_log("PACKET_MULTICAST");
384                 break;
385             case PACKET_OTHERHOST:
386                 qemu_log("PACKET_OTHERHOST");
387                 break;
388             case PACKET_OUTGOING:
389                 qemu_log("PACKET_OUTGOING");
390                 break;
391             default:
392                 qemu_log("%d", ll->sll_pkttype);
393                 break;
394             }
395             qemu_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             qemu_log("}");
398             break;
399         }
400         case AF_NETLINK: {
401             struct target_sockaddr_nl *nl = (struct target_sockaddr_nl *)sa;
402             qemu_log("{nl_family=AF_NETLINK,nl_pid=%u,nl_groups=%u}",
403                      tswap32(nl->nl_pid), tswap32(nl->nl_groups));
404             break;
405         }
406         default:
407             qemu_log("{sa_family=%d, sa_data={", sa->sa_family);
408             for (i = 0; i < 13; i++) {
409                 qemu_log("%02x, ", sa->sa_data[i]);
410             }
411             qemu_log("%02x}", sa->sa_data[i]);
412             qemu_log("}");
413             break;
414         }
415         unlock_user(sa, addr, 0);
416     } else {
417         print_raw_param("0x"TARGET_ABI_FMT_lx, addr, 0);
418     }
419     qemu_log(", "TARGET_ABI_FMT_ld"%s", addrlen, get_comma(last));
420 }
421 
422 static void
423 print_socket_domain(int domain)
424 {
425     switch (domain) {
426     case PF_UNIX:
427         qemu_log("PF_UNIX");
428         break;
429     case PF_INET:
430         qemu_log("PF_INET");
431         break;
432     case PF_NETLINK:
433         qemu_log("PF_NETLINK");
434         break;
435     case PF_PACKET:
436         qemu_log("PF_PACKET");
437         break;
438     default:
439         qemu_log("%d", domain);
440         break;
441     }
442 }
443 
444 static void
445 print_socket_type(int type)
446 {
447     switch (type) {
448     case TARGET_SOCK_DGRAM:
449         qemu_log("SOCK_DGRAM");
450         break;
451     case TARGET_SOCK_STREAM:
452         qemu_log("SOCK_STREAM");
453         break;
454     case TARGET_SOCK_RAW:
455         qemu_log("SOCK_RAW");
456         break;
457     case TARGET_SOCK_RDM:
458         qemu_log("SOCK_RDM");
459         break;
460     case TARGET_SOCK_SEQPACKET:
461         qemu_log("SOCK_SEQPACKET");
462         break;
463     case TARGET_SOCK_PACKET:
464         qemu_log("SOCK_PACKET");
465         break;
466     }
467 }
468 
469 static void
470 print_socket_protocol(int domain, int type, int protocol)
471 {
472     if (domain == AF_PACKET ||
473         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
474         switch (protocol) {
475         case 0x0003:
476             qemu_log("ETH_P_ALL");
477             break;
478         default:
479             qemu_log("%d", protocol);
480         }
481         return;
482     }
483 
484     if (domain == PF_NETLINK) {
485         switch (protocol) {
486         case NETLINK_ROUTE:
487             qemu_log("NETLINK_ROUTE");
488             break;
489         case NETLINK_AUDIT:
490             qemu_log("NETLINK_AUDIT");
491             break;
492         case NETLINK_NETFILTER:
493             qemu_log("NETLINK_NETFILTER");
494             break;
495         case NETLINK_KOBJECT_UEVENT:
496             qemu_log("NETLINK_KOBJECT_UEVENT");
497             break;
498         case NETLINK_RDMA:
499             qemu_log("NETLINK_RDMA");
500             break;
501         case NETLINK_CRYPTO:
502             qemu_log("NETLINK_CRYPTO");
503             break;
504         default:
505             qemu_log("%d", protocol);
506             break;
507         }
508         return;
509     }
510 
511     switch (protocol) {
512     case IPPROTO_IP:
513         qemu_log("IPPROTO_IP");
514         break;
515     case IPPROTO_TCP:
516         qemu_log("IPPROTO_TCP");
517         break;
518     case IPPROTO_UDP:
519         qemu_log("IPPROTO_UDP");
520         break;
521     case IPPROTO_RAW:
522         qemu_log("IPPROTO_RAW");
523         break;
524     default:
525         qemu_log("%d", protocol);
526         break;
527     }
528 }
529 
530 
531 #ifdef TARGET_NR__newselect
532 static void
533 print_fdset(int n, abi_ulong target_fds_addr)
534 {
535     int i;
536 
537     qemu_log("[");
538     if( target_fds_addr ) {
539         abi_long *target_fds;
540 
541         target_fds = lock_user(VERIFY_READ,
542                                target_fds_addr,
543                                sizeof(*target_fds)*(n / TARGET_ABI_BITS + 1),
544                                1);
545 
546         if (!target_fds)
547             return;
548 
549         for (i=n; i>=0; i--) {
550             if ((tswapal(target_fds[i / TARGET_ABI_BITS]) >> (i & (TARGET_ABI_BITS - 1))) & 1)
551                 qemu_log("%d,", i);
552             }
553         unlock_user(target_fds, target_fds_addr, 0);
554     }
555     qemu_log("]");
556 }
557 #endif
558 
559 #ifdef TARGET_NR_clock_adjtime
560 /* IDs of the various system clocks */
561 #define TARGET_CLOCK_REALTIME              0
562 #define TARGET_CLOCK_MONOTONIC             1
563 #define TARGET_CLOCK_PROCESS_CPUTIME_ID    2
564 #define TARGET_CLOCK_THREAD_CPUTIME_ID     3
565 #define TARGET_CLOCK_MONOTONIC_RAW         4
566 #define TARGET_CLOCK_REALTIME_COARSE       5
567 #define TARGET_CLOCK_MONOTONIC_COARSE      6
568 #define TARGET_CLOCK_BOOTTIME              7
569 #define TARGET_CLOCK_REALTIME_ALARM        8
570 #define TARGET_CLOCK_BOOTTIME_ALARM        9
571 #define TARGET_CLOCK_SGI_CYCLE             10
572 #define TARGET_CLOCK_TAI                   11
573 
574 static void
575 print_clockid(int clockid, int last)
576 {
577     switch (clockid) {
578     case TARGET_CLOCK_REALTIME:
579         qemu_log("CLOCK_REALTIME");
580         break;
581     case TARGET_CLOCK_MONOTONIC:
582         qemu_log("CLOCK_MONOTONIC");
583         break;
584     case TARGET_CLOCK_PROCESS_CPUTIME_ID:
585         qemu_log("CLOCK_PROCESS_CPUTIME_ID");
586         break;
587     case TARGET_CLOCK_THREAD_CPUTIME_ID:
588         qemu_log("CLOCK_THREAD_CPUTIME_ID");
589         break;
590     case TARGET_CLOCK_MONOTONIC_RAW:
591         qemu_log("CLOCK_MONOTONIC_RAW");
592         break;
593     case TARGET_CLOCK_REALTIME_COARSE:
594         qemu_log("CLOCK_REALTIME_COARSE");
595         break;
596     case TARGET_CLOCK_MONOTONIC_COARSE:
597         qemu_log("CLOCK_MONOTONIC_COARSE");
598         break;
599     case TARGET_CLOCK_BOOTTIME:
600         qemu_log("CLOCK_BOOTTIME");
601         break;
602     case TARGET_CLOCK_REALTIME_ALARM:
603         qemu_log("CLOCK_REALTIME_ALARM");
604         break;
605     case TARGET_CLOCK_BOOTTIME_ALARM:
606         qemu_log("CLOCK_BOOTTIME_ALARM");
607         break;
608     case TARGET_CLOCK_SGI_CYCLE:
609         qemu_log("CLOCK_SGI_CYCLE");
610         break;
611     case TARGET_CLOCK_TAI:
612         qemu_log("CLOCK_TAI");
613         break;
614     default:
615         qemu_log("%d", clockid);
616         break;
617     }
618     qemu_log("%s", get_comma(last));
619 }
620 #endif
621 
622 /*
623  * Sysycall specific output functions
624  */
625 
626 /* select */
627 #ifdef TARGET_NR__newselect
628 static long newselect_arg1 = 0;
629 static long newselect_arg2 = 0;
630 static long newselect_arg3 = 0;
631 static long newselect_arg4 = 0;
632 static long newselect_arg5 = 0;
633 
634 static void
635 print_newselect(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     qemu_log("%s(" TARGET_ABI_FMT_ld ",", name->name, arg1);
640     print_fdset(arg1, arg2);
641     qemu_log(",");
642     print_fdset(arg1, arg3);
643     qemu_log(",");
644     print_fdset(arg1, arg4);
645     qemu_log(",");
646     print_timeval(arg5, 1);
647     qemu_log(")");
648 
649     /* save for use in the return output function below */
650     newselect_arg1=arg1;
651     newselect_arg2=arg2;
652     newselect_arg3=arg3;
653     newselect_arg4=arg4;
654     newselect_arg5=arg5;
655 }
656 #endif
657 
658 #ifdef TARGET_NR_semctl
659 static void
660 print_semctl(const struct syscallname *name,
661              abi_long arg1, abi_long arg2, abi_long arg3,
662              abi_long arg4, abi_long arg5, abi_long arg6)
663 {
664     qemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",",
665              name->name, arg1, arg2);
666     print_ipc_cmd(arg3);
667     qemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
668 }
669 #endif
670 
671 static void
672 print_execve(const struct syscallname *name,
673              abi_long arg1, abi_long arg2, abi_long arg3,
674              abi_long arg4, abi_long arg5, abi_long arg6)
675 {
676     abi_ulong arg_ptr_addr;
677     char *s;
678 
679     if (!(s = lock_user_string(arg1)))
680         return;
681     qemu_log("%s(\"%s\",{", name->name, s);
682     unlock_user(s, arg1, 0);
683 
684     for (arg_ptr_addr = arg2; ; arg_ptr_addr += sizeof(abi_ulong)) {
685         abi_ulong *arg_ptr, arg_addr;
686 
687         arg_ptr = lock_user(VERIFY_READ, arg_ptr_addr, sizeof(abi_ulong), 1);
688         if (!arg_ptr)
689             return;
690     arg_addr = tswapal(*arg_ptr);
691         unlock_user(arg_ptr, arg_ptr_addr, 0);
692         if (!arg_addr)
693             break;
694         if ((s = lock_user_string(arg_addr))) {
695             qemu_log("\"%s\",", s);
696             unlock_user(s, arg_addr, 0);
697         }
698     }
699 
700     qemu_log("NULL})");
701 }
702 
703 #ifdef TARGET_NR_ipc
704 static void
705 print_ipc(const struct syscallname *name,
706           abi_long arg1, abi_long arg2, abi_long arg3,
707           abi_long arg4, abi_long arg5, abi_long arg6)
708 {
709     switch(arg1) {
710     case IPCOP_semctl:
711         qemu_log("semctl(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",",
712                  arg1, arg2);
713         print_ipc_cmd(arg3);
714         qemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
715         break;
716     default:
717         qemu_log(("%s("
718                   TARGET_ABI_FMT_ld ","
719                   TARGET_ABI_FMT_ld ","
720                   TARGET_ABI_FMT_ld ","
721                   TARGET_ABI_FMT_ld
722                   ")"),
723                  name->name, arg1, arg2, arg3, arg4);
724     }
725 }
726 #endif
727 
728 /*
729  * Variants for the return value output function
730  */
731 
732 static void
733 print_syscall_ret_addr(const struct syscallname *name, abi_long ret)
734 {
735     const char *errstr = NULL;
736 
737     if (ret < 0) {
738         errstr = target_strerror(-ret);
739     }
740     if (errstr) {
741         qemu_log(" = -1 errno=%d (%s)\n", (int)-ret, errstr);
742     } else {
743         qemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
744     }
745 }
746 
747 #if 0 /* currently unused */
748 static void
749 print_syscall_ret_raw(struct syscallname *name, abi_long ret)
750 {
751         qemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
752 }
753 #endif
754 
755 #ifdef TARGET_NR__newselect
756 static void
757 print_syscall_ret_newselect(const struct syscallname *name, abi_long ret)
758 {
759     qemu_log(" = 0x" TARGET_ABI_FMT_lx " (", ret);
760     print_fdset(newselect_arg1,newselect_arg2);
761     qemu_log(",");
762     print_fdset(newselect_arg1,newselect_arg3);
763     qemu_log(",");
764     print_fdset(newselect_arg1,newselect_arg4);
765     qemu_log(",");
766     print_timeval(newselect_arg5, 1);
767     qemu_log(")\n");
768 }
769 #endif
770 
771 /* special meanings of adjtimex()' non-negative return values */
772 #define TARGET_TIME_OK       0   /* clock synchronized, no leap second */
773 #define TARGET_TIME_INS      1   /* insert leap second */
774 #define TARGET_TIME_DEL      2   /* delete leap second */
775 #define TARGET_TIME_OOP      3   /* leap second in progress */
776 #define TARGET_TIME_WAIT     4   /* leap second has occurred */
777 #define TARGET_TIME_ERROR    5   /* clock not synchronized */
778 static void
779 print_syscall_ret_adjtimex(const struct syscallname *name, abi_long ret)
780 {
781     const char *errstr = NULL;
782 
783     qemu_log(" = ");
784     if (ret < 0) {
785         qemu_log("-1 errno=%d", errno);
786         errstr = target_strerror(-ret);
787         if (errstr) {
788             qemu_log(" (%s)", errstr);
789         }
790     } else {
791         qemu_log(TARGET_ABI_FMT_ld, ret);
792         switch (ret) {
793         case TARGET_TIME_OK:
794             qemu_log(" TIME_OK (clock synchronized, no leap second)");
795             break;
796         case TARGET_TIME_INS:
797             qemu_log(" TIME_INS (insert leap second)");
798             break;
799         case TARGET_TIME_DEL:
800             qemu_log(" TIME_DEL (delete leap second)");
801             break;
802         case TARGET_TIME_OOP:
803             qemu_log(" TIME_OOP (leap second in progress)");
804             break;
805         case TARGET_TIME_WAIT:
806             qemu_log(" TIME_WAIT (leap second has occurred)");
807             break;
808         case TARGET_TIME_ERROR:
809             qemu_log(" TIME_ERROR (clock not synchronized)");
810             break;
811         }
812     }
813 
814     qemu_log("\n");
815 }
816 
817 UNUSED static struct flags access_flags[] = {
818     FLAG_GENERIC(F_OK),
819     FLAG_GENERIC(R_OK),
820     FLAG_GENERIC(W_OK),
821     FLAG_GENERIC(X_OK),
822     FLAG_END,
823 };
824 
825 UNUSED static struct flags at_file_flags[] = {
826 #ifdef AT_EACCESS
827     FLAG_GENERIC(AT_EACCESS),
828 #endif
829 #ifdef AT_SYMLINK_NOFOLLOW
830     FLAG_GENERIC(AT_SYMLINK_NOFOLLOW),
831 #endif
832     FLAG_END,
833 };
834 
835 UNUSED static struct flags unlinkat_flags[] = {
836 #ifdef AT_REMOVEDIR
837     FLAG_GENERIC(AT_REMOVEDIR),
838 #endif
839     FLAG_END,
840 };
841 
842 UNUSED static struct flags mode_flags[] = {
843     FLAG_GENERIC(S_IFSOCK),
844     FLAG_GENERIC(S_IFLNK),
845     FLAG_GENERIC(S_IFREG),
846     FLAG_GENERIC(S_IFBLK),
847     FLAG_GENERIC(S_IFDIR),
848     FLAG_GENERIC(S_IFCHR),
849     FLAG_GENERIC(S_IFIFO),
850     FLAG_END,
851 };
852 
853 UNUSED static struct flags open_access_flags[] = {
854     FLAG_TARGET(O_RDONLY),
855     FLAG_TARGET(O_WRONLY),
856     FLAG_TARGET(O_RDWR),
857     FLAG_END,
858 };
859 
860 UNUSED static struct flags open_flags[] = {
861     FLAG_TARGET(O_APPEND),
862     FLAG_TARGET(O_CREAT),
863     FLAG_TARGET(O_DIRECTORY),
864     FLAG_TARGET(O_EXCL),
865     FLAG_TARGET(O_LARGEFILE),
866     FLAG_TARGET(O_NOCTTY),
867     FLAG_TARGET(O_NOFOLLOW),
868     FLAG_TARGET(O_NONBLOCK),      /* also O_NDELAY */
869     FLAG_TARGET(O_DSYNC),
870     FLAG_TARGET(__O_SYNC),
871     FLAG_TARGET(O_TRUNC),
872 #ifdef O_DIRECT
873     FLAG_TARGET(O_DIRECT),
874 #endif
875 #ifdef O_NOATIME
876     FLAG_TARGET(O_NOATIME),
877 #endif
878 #ifdef O_CLOEXEC
879     FLAG_TARGET(O_CLOEXEC),
880 #endif
881 #ifdef O_PATH
882     FLAG_TARGET(O_PATH),
883 #endif
884 #ifdef O_TMPFILE
885     FLAG_TARGET(O_TMPFILE),
886     FLAG_TARGET(__O_TMPFILE),
887 #endif
888     FLAG_END,
889 };
890 
891 UNUSED static struct flags mount_flags[] = {
892 #ifdef MS_BIND
893     FLAG_GENERIC(MS_BIND),
894 #endif
895 #ifdef MS_DIRSYNC
896     FLAG_GENERIC(MS_DIRSYNC),
897 #endif
898     FLAG_GENERIC(MS_MANDLOCK),
899 #ifdef MS_MOVE
900     FLAG_GENERIC(MS_MOVE),
901 #endif
902     FLAG_GENERIC(MS_NOATIME),
903     FLAG_GENERIC(MS_NODEV),
904     FLAG_GENERIC(MS_NODIRATIME),
905     FLAG_GENERIC(MS_NOEXEC),
906     FLAG_GENERIC(MS_NOSUID),
907     FLAG_GENERIC(MS_RDONLY),
908 #ifdef MS_RELATIME
909     FLAG_GENERIC(MS_RELATIME),
910 #endif
911     FLAG_GENERIC(MS_REMOUNT),
912     FLAG_GENERIC(MS_SYNCHRONOUS),
913     FLAG_END,
914 };
915 
916 UNUSED static struct flags umount2_flags[] = {
917 #ifdef MNT_FORCE
918     FLAG_GENERIC(MNT_FORCE),
919 #endif
920 #ifdef MNT_DETACH
921     FLAG_GENERIC(MNT_DETACH),
922 #endif
923 #ifdef MNT_EXPIRE
924     FLAG_GENERIC(MNT_EXPIRE),
925 #endif
926     FLAG_END,
927 };
928 
929 UNUSED static struct flags mmap_prot_flags[] = {
930     FLAG_GENERIC(PROT_NONE),
931     FLAG_GENERIC(PROT_EXEC),
932     FLAG_GENERIC(PROT_READ),
933     FLAG_GENERIC(PROT_WRITE),
934     FLAG_TARGET(PROT_SEM),
935     FLAG_GENERIC(PROT_GROWSDOWN),
936     FLAG_GENERIC(PROT_GROWSUP),
937     FLAG_END,
938 };
939 
940 UNUSED static struct flags mmap_flags[] = {
941     FLAG_TARGET(MAP_SHARED),
942     FLAG_TARGET(MAP_PRIVATE),
943     FLAG_TARGET(MAP_ANONYMOUS),
944     FLAG_TARGET(MAP_DENYWRITE),
945     FLAG_TARGET(MAP_FIXED),
946     FLAG_TARGET(MAP_GROWSDOWN),
947     FLAG_TARGET(MAP_EXECUTABLE),
948 #ifdef MAP_LOCKED
949     FLAG_TARGET(MAP_LOCKED),
950 #endif
951 #ifdef MAP_NONBLOCK
952     FLAG_TARGET(MAP_NONBLOCK),
953 #endif
954     FLAG_TARGET(MAP_NORESERVE),
955 #ifdef MAP_POPULATE
956     FLAG_TARGET(MAP_POPULATE),
957 #endif
958 #ifdef TARGET_MAP_UNINITIALIZED
959     FLAG_TARGET(MAP_UNINITIALIZED),
960 #endif
961     FLAG_END,
962 };
963 
964 UNUSED static struct flags clone_flags[] = {
965     FLAG_GENERIC(CLONE_VM),
966     FLAG_GENERIC(CLONE_FS),
967     FLAG_GENERIC(CLONE_FILES),
968     FLAG_GENERIC(CLONE_SIGHAND),
969     FLAG_GENERIC(CLONE_PTRACE),
970     FLAG_GENERIC(CLONE_VFORK),
971     FLAG_GENERIC(CLONE_PARENT),
972     FLAG_GENERIC(CLONE_THREAD),
973     FLAG_GENERIC(CLONE_NEWNS),
974     FLAG_GENERIC(CLONE_SYSVSEM),
975     FLAG_GENERIC(CLONE_SETTLS),
976     FLAG_GENERIC(CLONE_PARENT_SETTID),
977     FLAG_GENERIC(CLONE_CHILD_CLEARTID),
978     FLAG_GENERIC(CLONE_DETACHED),
979     FLAG_GENERIC(CLONE_UNTRACED),
980     FLAG_GENERIC(CLONE_CHILD_SETTID),
981 #if defined(CLONE_NEWUTS)
982     FLAG_GENERIC(CLONE_NEWUTS),
983 #endif
984 #if defined(CLONE_NEWIPC)
985     FLAG_GENERIC(CLONE_NEWIPC),
986 #endif
987 #if defined(CLONE_NEWUSER)
988     FLAG_GENERIC(CLONE_NEWUSER),
989 #endif
990 #if defined(CLONE_NEWPID)
991     FLAG_GENERIC(CLONE_NEWPID),
992 #endif
993 #if defined(CLONE_NEWNET)
994     FLAG_GENERIC(CLONE_NEWNET),
995 #endif
996 #if defined(CLONE_IO)
997     FLAG_GENERIC(CLONE_IO),
998 #endif
999     FLAG_END,
1000 };
1001 
1002 UNUSED static struct flags msg_flags[] = {
1003     /* send */
1004     FLAG_GENERIC(MSG_CONFIRM),
1005     FLAG_GENERIC(MSG_DONTROUTE),
1006     FLAG_GENERIC(MSG_DONTWAIT),
1007     FLAG_GENERIC(MSG_EOR),
1008     FLAG_GENERIC(MSG_MORE),
1009     FLAG_GENERIC(MSG_NOSIGNAL),
1010     FLAG_GENERIC(MSG_OOB),
1011     /* recv */
1012     FLAG_GENERIC(MSG_CMSG_CLOEXEC),
1013     FLAG_GENERIC(MSG_ERRQUEUE),
1014     FLAG_GENERIC(MSG_PEEK),
1015     FLAG_GENERIC(MSG_TRUNC),
1016     FLAG_GENERIC(MSG_WAITALL),
1017     /* recvmsg */
1018     FLAG_GENERIC(MSG_CTRUNC),
1019     FLAG_END,
1020 };
1021 
1022 UNUSED static struct flags statx_flags[] = {
1023 #ifdef AT_EMPTY_PATH
1024     FLAG_GENERIC(AT_EMPTY_PATH),
1025 #endif
1026 #ifdef AT_NO_AUTOMOUNT
1027     FLAG_GENERIC(AT_NO_AUTOMOUNT),
1028 #endif
1029 #ifdef AT_SYMLINK_NOFOLLOW
1030     FLAG_GENERIC(AT_SYMLINK_NOFOLLOW),
1031 #endif
1032 #ifdef AT_STATX_SYNC_AS_STAT
1033     FLAG_GENERIC(AT_STATX_SYNC_AS_STAT),
1034 #endif
1035 #ifdef AT_STATX_FORCE_SYNC
1036     FLAG_GENERIC(AT_STATX_FORCE_SYNC),
1037 #endif
1038 #ifdef AT_STATX_DONT_SYNC
1039     FLAG_GENERIC(AT_STATX_DONT_SYNC),
1040 #endif
1041     FLAG_END,
1042 };
1043 
1044 UNUSED static struct flags statx_mask[] = {
1045 /* This must come first, because it includes everything.  */
1046 #ifdef STATX_ALL
1047     FLAG_GENERIC(STATX_ALL),
1048 #endif
1049 /* This must come second; it includes everything except STATX_BTIME.  */
1050 #ifdef STATX_BASIC_STATS
1051     FLAG_GENERIC(STATX_BASIC_STATS),
1052 #endif
1053 #ifdef STATX_TYPE
1054     FLAG_GENERIC(STATX_TYPE),
1055 #endif
1056 #ifdef STATX_MODE
1057     FLAG_GENERIC(STATX_MODE),
1058 #endif
1059 #ifdef STATX_NLINK
1060     FLAG_GENERIC(STATX_NLINK),
1061 #endif
1062 #ifdef STATX_UID
1063     FLAG_GENERIC(STATX_UID),
1064 #endif
1065 #ifdef STATX_GID
1066     FLAG_GENERIC(STATX_GID),
1067 #endif
1068 #ifdef STATX_ATIME
1069     FLAG_GENERIC(STATX_ATIME),
1070 #endif
1071 #ifdef STATX_MTIME
1072     FLAG_GENERIC(STATX_MTIME),
1073 #endif
1074 #ifdef STATX_CTIME
1075     FLAG_GENERIC(STATX_CTIME),
1076 #endif
1077 #ifdef STATX_INO
1078     FLAG_GENERIC(STATX_INO),
1079 #endif
1080 #ifdef STATX_SIZE
1081     FLAG_GENERIC(STATX_SIZE),
1082 #endif
1083 #ifdef STATX_BLOCKS
1084     FLAG_GENERIC(STATX_BLOCKS),
1085 #endif
1086 #ifdef STATX_BTIME
1087     FLAG_GENERIC(STATX_BTIME),
1088 #endif
1089     FLAG_END,
1090 };
1091 
1092 /*
1093  * print_xxx utility functions.  These are used to print syscall
1094  * parameters in certain format.  All of these have parameter
1095  * named 'last'.  This parameter is used to add comma to output
1096  * when last == 0.
1097  */
1098 
1099 static const char *
1100 get_comma(int last)
1101 {
1102     return ((last) ? "" : ",");
1103 }
1104 
1105 static void
1106 print_flags(const struct flags *f, abi_long flags, int last)
1107 {
1108     const char *sep = "";
1109     int n;
1110 
1111     if ((flags == 0) && (f->f_value == 0)) {
1112         qemu_log("%s%s", f->f_string, get_comma(last));
1113         return;
1114     }
1115     for (n = 0; f->f_string != NULL; f++) {
1116         if ((f->f_value != 0) && ((flags & f->f_value) == f->f_value)) {
1117             qemu_log("%s%s", sep, f->f_string);
1118             flags &= ~f->f_value;
1119             sep = "|";
1120             n++;
1121         }
1122     }
1123 
1124     if (n > 0) {
1125         /* print rest of the flags as numeric */
1126         if (flags != 0) {
1127             qemu_log("%s%#x%s", sep, (unsigned int)flags, get_comma(last));
1128         } else {
1129             qemu_log("%s", get_comma(last));
1130         }
1131     } else {
1132         /* no string version of flags found, print them in hex then */
1133         qemu_log("%#x%s", (unsigned int)flags, get_comma(last));
1134     }
1135 }
1136 
1137 static void
1138 print_at_dirfd(abi_long dirfd, int last)
1139 {
1140 #ifdef AT_FDCWD
1141     if (dirfd == AT_FDCWD) {
1142         qemu_log("AT_FDCWD%s", get_comma(last));
1143         return;
1144     }
1145 #endif
1146     qemu_log("%d%s", (int)dirfd, get_comma(last));
1147 }
1148 
1149 static void
1150 print_file_mode(abi_long mode, int last)
1151 {
1152     const char *sep = "";
1153     const struct flags *m;
1154 
1155     for (m = &mode_flags[0]; m->f_string != NULL; m++) {
1156         if ((m->f_value & mode) == m->f_value) {
1157             qemu_log("%s%s", m->f_string, sep);
1158             sep = "|";
1159             mode &= ~m->f_value;
1160             break;
1161         }
1162     }
1163 
1164     mode &= ~S_IFMT;
1165     /* print rest of the mode as octal */
1166     if (mode != 0)
1167         qemu_log("%s%#o", sep, (unsigned int)mode);
1168 
1169     qemu_log("%s", get_comma(last));
1170 }
1171 
1172 static void
1173 print_open_flags(abi_long flags, int last)
1174 {
1175     print_flags(open_access_flags, flags & TARGET_O_ACCMODE, 1);
1176     flags &= ~TARGET_O_ACCMODE;
1177     if (flags == 0) {
1178         qemu_log("%s", get_comma(last));
1179         return;
1180     }
1181     qemu_log("|");
1182     print_flags(open_flags, flags, last);
1183 }
1184 
1185 static void
1186 print_syscall_prologue(const struct syscallname *sc)
1187 {
1188     qemu_log("%s(", sc->name);
1189 }
1190 
1191 /*ARGSUSED*/
1192 static void
1193 print_syscall_epilogue(const struct syscallname *sc)
1194 {
1195     (void)sc;
1196     qemu_log(")");
1197 }
1198 
1199 static void
1200 print_string(abi_long addr, int last)
1201 {
1202     char *s;
1203 
1204     if ((s = lock_user_string(addr)) != NULL) {
1205         qemu_log("\"%s\"%s", s, get_comma(last));
1206         unlock_user(s, addr, 0);
1207     } else {
1208         /* can't get string out of it, so print it as pointer */
1209         print_pointer(addr, last);
1210     }
1211 }
1212 
1213 #define MAX_PRINT_BUF 40
1214 static void
1215 print_buf(abi_long addr, abi_long len, int last)
1216 {
1217     uint8_t *s;
1218     int i;
1219 
1220     s = lock_user(VERIFY_READ, addr, len, 1);
1221     if (s) {
1222         qemu_log("\"");
1223         for (i = 0; i < MAX_PRINT_BUF && i < len; i++) {
1224             if (isprint(s[i])) {
1225                 qemu_log("%c", s[i]);
1226             } else {
1227                 qemu_log("\\%o", s[i]);
1228             }
1229         }
1230         qemu_log("\"");
1231         if (i != len) {
1232             qemu_log("...");
1233         }
1234         if (!last) {
1235             qemu_log(",");
1236         }
1237         unlock_user(s, addr, 0);
1238     } else {
1239         print_pointer(addr, last);
1240     }
1241 }
1242 
1243 /*
1244  * Prints out raw parameter using given format.  Caller needs
1245  * to do byte swapping if needed.
1246  */
1247 static void
1248 print_raw_param(const char *fmt, abi_long param, int last)
1249 {
1250     char format[64];
1251 
1252     (void) snprintf(format, sizeof (format), "%s%s", fmt, get_comma(last));
1253     qemu_log(format, param);
1254 }
1255 
1256 static void
1257 print_pointer(abi_long p, int last)
1258 {
1259     if (p == 0)
1260         qemu_log("NULL%s", get_comma(last));
1261     else
1262         qemu_log("0x" TARGET_ABI_FMT_lx "%s", p, get_comma(last));
1263 }
1264 
1265 /*
1266  * Reads 32-bit (int) number from guest address space from
1267  * address 'addr' and prints it.
1268  */
1269 static void
1270 print_number(abi_long addr, int last)
1271 {
1272     if (addr == 0) {
1273         qemu_log("NULL%s", get_comma(last));
1274     } else {
1275         int num;
1276 
1277         get_user_s32(num, addr);
1278         qemu_log("[%d]%s", num, get_comma(last));
1279     }
1280 }
1281 
1282 static void
1283 print_timeval(abi_ulong tv_addr, int last)
1284 {
1285     if( tv_addr ) {
1286         struct target_timeval *tv;
1287 
1288         tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1);
1289         if (!tv) {
1290             print_pointer(tv_addr, last);
1291             return;
1292         }
1293         qemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s",
1294             tswapal(tv->tv_sec), tswapal(tv->tv_usec), get_comma(last));
1295         unlock_user(tv, tv_addr, 0);
1296     } else
1297         qemu_log("NULL%s", get_comma(last));
1298 }
1299 
1300 static void
1301 print_timezone(abi_ulong tz_addr, int last)
1302 {
1303     if (tz_addr) {
1304         struct target_timezone *tz;
1305 
1306         tz = lock_user(VERIFY_READ, tz_addr, sizeof(*tz), 1);
1307         if (!tz) {
1308             print_pointer(tz_addr, last);
1309             return;
1310         }
1311         qemu_log("{%d,%d}%s", tswap32(tz->tz_minuteswest),
1312                  tswap32(tz->tz_dsttime), get_comma(last));
1313         unlock_user(tz, tz_addr, 0);
1314     } else {
1315         qemu_log("NULL%s", get_comma(last));
1316     }
1317 }
1318 
1319 #undef UNUSED
1320 
1321 #ifdef TARGET_NR_accept
1322 static void
1323 print_accept(const struct syscallname *name,
1324     abi_long arg0, abi_long arg1, abi_long arg2,
1325     abi_long arg3, abi_long arg4, abi_long arg5)
1326 {
1327     print_syscall_prologue(name);
1328     print_raw_param("%d", arg0, 0);
1329     print_pointer(arg1, 0);
1330     print_number(arg2, 1);
1331     print_syscall_epilogue(name);
1332 }
1333 #endif
1334 
1335 #ifdef TARGET_NR_access
1336 static void
1337 print_access(const struct syscallname *name,
1338     abi_long arg0, abi_long arg1, abi_long arg2,
1339     abi_long arg3, abi_long arg4, abi_long arg5)
1340 {
1341     print_syscall_prologue(name);
1342     print_string(arg0, 0);
1343     print_flags(access_flags, arg1, 1);
1344     print_syscall_epilogue(name);
1345 }
1346 #endif
1347 
1348 #ifdef TARGET_NR_brk
1349 static void
1350 print_brk(const struct syscallname *name,
1351     abi_long arg0, abi_long arg1, abi_long arg2,
1352     abi_long arg3, abi_long arg4, abi_long arg5)
1353 {
1354     print_syscall_prologue(name);
1355     print_pointer(arg0, 1);
1356     print_syscall_epilogue(name);
1357 }
1358 #endif
1359 
1360 #ifdef TARGET_NR_chdir
1361 static void
1362 print_chdir(const struct syscallname *name,
1363     abi_long arg0, abi_long arg1, abi_long arg2,
1364     abi_long arg3, abi_long arg4, abi_long arg5)
1365 {
1366     print_syscall_prologue(name);
1367     print_string(arg0, 1);
1368     print_syscall_epilogue(name);
1369 }
1370 #endif
1371 
1372 #ifdef TARGET_NR_chroot
1373 static void
1374 print_chroot(const struct syscallname *name,
1375     abi_long arg0, abi_long arg1, abi_long arg2,
1376     abi_long arg3, abi_long arg4, abi_long arg5)
1377 {
1378     print_syscall_prologue(name);
1379     print_string(arg0, 1);
1380     print_syscall_epilogue(name);
1381 }
1382 #endif
1383 
1384 #ifdef TARGET_NR_chmod
1385 static void
1386 print_chmod(const struct syscallname *name,
1387     abi_long arg0, abi_long arg1, abi_long arg2,
1388     abi_long arg3, abi_long arg4, abi_long arg5)
1389 {
1390     print_syscall_prologue(name);
1391     print_string(arg0, 0);
1392     print_file_mode(arg1, 1);
1393     print_syscall_epilogue(name);
1394 }
1395 #endif
1396 
1397 #ifdef TARGET_NR_clock_adjtime
1398 static void
1399 print_clock_adjtime(const struct syscallname *name,
1400     abi_long arg0, abi_long arg1, abi_long arg2,
1401     abi_long arg3, abi_long arg4, abi_long arg5)
1402 {
1403     print_syscall_prologue(name);
1404     print_clockid(arg0, 0);
1405     print_pointer(arg1, 1);
1406     print_syscall_epilogue(name);
1407 }
1408 #endif
1409 
1410 #ifdef TARGET_NR_clone
1411 static void do_print_clone(unsigned int flags, abi_ulong newsp,
1412                            abi_ulong parent_tidptr, target_ulong newtls,
1413                            abi_ulong child_tidptr)
1414 {
1415     print_flags(clone_flags, flags, 0);
1416     print_raw_param("child_stack=0x" TARGET_ABI_FMT_lx, newsp, 0);
1417     print_raw_param("parent_tidptr=0x" TARGET_ABI_FMT_lx, parent_tidptr, 0);
1418     print_raw_param("tls=0x" TARGET_ABI_FMT_lx, newtls, 0);
1419     print_raw_param("child_tidptr=0x" TARGET_ABI_FMT_lx, child_tidptr, 1);
1420 }
1421 
1422 static void
1423 print_clone(const struct syscallname *name,
1424     abi_long arg1, abi_long arg2, abi_long arg3,
1425     abi_long arg4, abi_long arg5, abi_long arg6)
1426 {
1427     print_syscall_prologue(name);
1428 #if defined(TARGET_MICROBLAZE)
1429     do_print_clone(arg1, arg2, arg4, arg6, arg5);
1430 #elif defined(TARGET_CLONE_BACKWARDS)
1431     do_print_clone(arg1, arg2, arg3, arg4, arg5);
1432 #elif defined(TARGET_CLONE_BACKWARDS2)
1433     do_print_clone(arg2, arg1, arg3, arg5, arg4);
1434 #else
1435     do_print_clone(arg1, arg2, arg3, arg5, arg4);
1436 #endif
1437     print_syscall_epilogue(name);
1438 }
1439 #endif
1440 
1441 #ifdef TARGET_NR_creat
1442 static void
1443 print_creat(const struct syscallname *name,
1444     abi_long arg0, abi_long arg1, abi_long arg2,
1445     abi_long arg3, abi_long arg4, abi_long arg5)
1446 {
1447     print_syscall_prologue(name);
1448     print_string(arg0, 0);
1449     print_file_mode(arg1, 1);
1450     print_syscall_epilogue(name);
1451 }
1452 #endif
1453 
1454 #ifdef TARGET_NR_execv
1455 static void
1456 print_execv(const struct syscallname *name,
1457     abi_long arg0, abi_long arg1, abi_long arg2,
1458     abi_long arg3, abi_long arg4, abi_long arg5)
1459 {
1460     print_syscall_prologue(name);
1461     print_string(arg0, 0);
1462     print_raw_param("0x" TARGET_ABI_FMT_lx, arg1, 1);
1463     print_syscall_epilogue(name);
1464 }
1465 #endif
1466 
1467 #ifdef TARGET_NR_faccessat
1468 static void
1469 print_faccessat(const struct syscallname *name,
1470     abi_long arg0, abi_long arg1, abi_long arg2,
1471     abi_long arg3, abi_long arg4, abi_long arg5)
1472 {
1473     print_syscall_prologue(name);
1474     print_at_dirfd(arg0, 0);
1475     print_string(arg1, 0);
1476     print_flags(access_flags, arg2, 0);
1477     print_flags(at_file_flags, arg3, 1);
1478     print_syscall_epilogue(name);
1479 }
1480 #endif
1481 
1482 #ifdef TARGET_NR_fchmodat
1483 static void
1484 print_fchmodat(const struct syscallname *name,
1485     abi_long arg0, abi_long arg1, abi_long arg2,
1486     abi_long arg3, abi_long arg4, abi_long arg5)
1487 {
1488     print_syscall_prologue(name);
1489     print_at_dirfd(arg0, 0);
1490     print_string(arg1, 0);
1491     print_file_mode(arg2, 0);
1492     print_flags(at_file_flags, arg3, 1);
1493     print_syscall_epilogue(name);
1494 }
1495 #endif
1496 
1497 #ifdef TARGET_NR_fchownat
1498 static void
1499 print_fchownat(const struct syscallname *name,
1500     abi_long arg0, abi_long arg1, abi_long arg2,
1501     abi_long arg3, abi_long arg4, abi_long arg5)
1502 {
1503     print_syscall_prologue(name);
1504     print_at_dirfd(arg0, 0);
1505     print_string(arg1, 0);
1506     print_raw_param("%d", arg2, 0);
1507     print_raw_param("%d", arg3, 0);
1508     print_flags(at_file_flags, arg4, 1);
1509     print_syscall_epilogue(name);
1510 }
1511 #endif
1512 
1513 #if defined(TARGET_NR_fcntl) || defined(TARGET_NR_fcntl64)
1514 static void
1515 print_fcntl(const struct syscallname *name,
1516     abi_long arg0, abi_long arg1, abi_long arg2,
1517     abi_long arg3, abi_long arg4, abi_long arg5)
1518 {
1519     print_syscall_prologue(name);
1520     print_raw_param("%d", arg0, 0);
1521     switch(arg1) {
1522     case TARGET_F_DUPFD:
1523         qemu_log("F_DUPFD,");
1524         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1525         break;
1526     case TARGET_F_GETFD:
1527         qemu_log("F_GETFD");
1528         break;
1529     case TARGET_F_SETFD:
1530         qemu_log("F_SETFD,");
1531         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1532         break;
1533     case TARGET_F_GETFL:
1534         qemu_log("F_GETFL");
1535         break;
1536     case TARGET_F_SETFL:
1537         qemu_log("F_SETFL,");
1538         print_open_flags(arg2, 1);
1539         break;
1540     case TARGET_F_GETLK:
1541         qemu_log("F_GETLK,");
1542         print_pointer(arg2, 1);
1543         break;
1544     case TARGET_F_SETLK:
1545         qemu_log("F_SETLK,");
1546         print_pointer(arg2, 1);
1547         break;
1548     case TARGET_F_SETLKW:
1549         qemu_log("F_SETLKW,");
1550         print_pointer(arg2, 1);
1551         break;
1552     case TARGET_F_GETOWN:
1553         qemu_log("F_GETOWN");
1554         break;
1555     case TARGET_F_SETOWN:
1556         qemu_log("F_SETOWN,");
1557         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1558         break;
1559     case TARGET_F_GETSIG:
1560         qemu_log("F_GETSIG");
1561         break;
1562     case TARGET_F_SETSIG:
1563         qemu_log("F_SETSIG,");
1564         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1565         break;
1566 #if TARGET_ABI_BITS == 32
1567     case TARGET_F_GETLK64:
1568         qemu_log("F_GETLK64,");
1569         print_pointer(arg2, 1);
1570         break;
1571     case TARGET_F_SETLK64:
1572         qemu_log("F_SETLK64,");
1573         print_pointer(arg2, 1);
1574         break;
1575     case TARGET_F_SETLKW64:
1576         qemu_log("F_SETLKW64,");
1577         print_pointer(arg2, 1);
1578         break;
1579 #endif
1580     case TARGET_F_SETLEASE:
1581         qemu_log("F_SETLEASE,");
1582         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1583         break;
1584     case TARGET_F_GETLEASE:
1585         qemu_log("F_GETLEASE");
1586         break;
1587     case TARGET_F_SETPIPE_SZ:
1588         qemu_log("F_SETPIPE_SZ,");
1589         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1590         break;
1591     case TARGET_F_GETPIPE_SZ:
1592         qemu_log("F_GETPIPE_SZ");
1593         break;
1594     case TARGET_F_DUPFD_CLOEXEC:
1595         qemu_log("F_DUPFD_CLOEXEC,");
1596         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1597         break;
1598     case TARGET_F_NOTIFY:
1599         qemu_log("F_NOTIFY,");
1600         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1601         break;
1602     default:
1603         print_raw_param(TARGET_ABI_FMT_ld, arg1, 0);
1604         print_pointer(arg2, 1);
1605         break;
1606     }
1607     print_syscall_epilogue(name);
1608 }
1609 #define print_fcntl64   print_fcntl
1610 #endif
1611 
1612 
1613 #ifdef TARGET_NR_futimesat
1614 static void
1615 print_futimesat(const struct syscallname *name,
1616     abi_long arg0, abi_long arg1, abi_long arg2,
1617     abi_long arg3, abi_long arg4, abi_long arg5)
1618 {
1619     print_syscall_prologue(name);
1620     print_at_dirfd(arg0, 0);
1621     print_string(arg1, 0);
1622     print_timeval(arg2, 0);
1623     print_timeval(arg2 + sizeof (struct target_timeval), 1);
1624     print_syscall_epilogue(name);
1625 }
1626 #endif
1627 
1628 #ifdef TARGET_NR_settimeofday
1629 static void
1630 print_settimeofday(const struct syscallname *name,
1631                 abi_long arg0, abi_long arg1, abi_long arg2,
1632                 abi_long arg3, abi_long arg4, abi_long arg5)
1633 {
1634     print_syscall_prologue(name);
1635     print_timeval(arg0, 0);
1636     print_timezone(arg1, 1);
1637     print_syscall_epilogue(name);
1638 }
1639 #endif
1640 
1641 #ifdef TARGET_NR_link
1642 static void
1643 print_link(const struct syscallname *name,
1644     abi_long arg0, abi_long arg1, abi_long arg2,
1645     abi_long arg3, abi_long arg4, abi_long arg5)
1646 {
1647     print_syscall_prologue(name);
1648     print_string(arg0, 0);
1649     print_string(arg1, 1);
1650     print_syscall_epilogue(name);
1651 }
1652 #endif
1653 
1654 #ifdef TARGET_NR_linkat
1655 static void
1656 print_linkat(const struct syscallname *name,
1657     abi_long arg0, abi_long arg1, abi_long arg2,
1658     abi_long arg3, abi_long arg4, abi_long arg5)
1659 {
1660     print_syscall_prologue(name);
1661     print_at_dirfd(arg0, 0);
1662     print_string(arg1, 0);
1663     print_at_dirfd(arg2, 0);
1664     print_string(arg3, 0);
1665     print_flags(at_file_flags, arg4, 1);
1666     print_syscall_epilogue(name);
1667 }
1668 #endif
1669 
1670 #ifdef TARGET_NR__llseek
1671 static void
1672 print__llseek(const struct syscallname *name,
1673     abi_long arg0, abi_long arg1, abi_long arg2,
1674     abi_long arg3, abi_long arg4, abi_long arg5)
1675 {
1676     const char *whence = "UNKNOWN";
1677     print_syscall_prologue(name);
1678     print_raw_param("%d", arg0, 0);
1679     print_raw_param("%ld", arg1, 0);
1680     print_raw_param("%ld", arg2, 0);
1681     print_pointer(arg3, 0);
1682     switch(arg4) {
1683     case SEEK_SET: whence = "SEEK_SET"; break;
1684     case SEEK_CUR: whence = "SEEK_CUR"; break;
1685     case SEEK_END: whence = "SEEK_END"; break;
1686     }
1687     qemu_log("%s", whence);
1688     print_syscall_epilogue(name);
1689 }
1690 #endif
1691 
1692 #if defined(TARGET_NR_socket)
1693 static void
1694 print_socket(const struct syscallname *name,
1695              abi_long arg0, abi_long arg1, abi_long arg2,
1696              abi_long arg3, abi_long arg4, abi_long arg5)
1697 {
1698     abi_ulong domain = arg0, type = arg1, protocol = arg2;
1699 
1700     print_syscall_prologue(name);
1701     print_socket_domain(domain);
1702     qemu_log(",");
1703     print_socket_type(type);
1704     qemu_log(",");
1705     if (domain == AF_PACKET ||
1706         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
1707         protocol = tswap16(protocol);
1708     }
1709     print_socket_protocol(domain, type, protocol);
1710     print_syscall_epilogue(name);
1711 }
1712 
1713 #endif
1714 
1715 #if defined(TARGET_NR_socketcall) || defined(TARGET_NR_bind)
1716 
1717 static void print_sockfd(abi_long sockfd, int last)
1718 {
1719     print_raw_param(TARGET_ABI_FMT_ld, sockfd, last);
1720 }
1721 
1722 #endif
1723 
1724 #if defined(TARGET_NR_socketcall)
1725 
1726 #define get_user_ualx(x, gaddr, idx) \
1727         get_user_ual(x, (gaddr) + (idx) * sizeof(abi_long))
1728 
1729 static void do_print_socket(const char *name, abi_long arg1)
1730 {
1731     abi_ulong domain, type, protocol;
1732 
1733     get_user_ualx(domain, arg1, 0);
1734     get_user_ualx(type, arg1, 1);
1735     get_user_ualx(protocol, arg1, 2);
1736     qemu_log("%s(", name);
1737     print_socket_domain(domain);
1738     qemu_log(",");
1739     print_socket_type(type);
1740     qemu_log(",");
1741     if (domain == AF_PACKET ||
1742         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
1743         protocol = tswap16(protocol);
1744     }
1745     print_socket_protocol(domain, type, protocol);
1746     qemu_log(")");
1747 }
1748 
1749 static void do_print_sockaddr(const char *name, abi_long arg1)
1750 {
1751     abi_ulong sockfd, addr, addrlen;
1752 
1753     get_user_ualx(sockfd, arg1, 0);
1754     get_user_ualx(addr, arg1, 1);
1755     get_user_ualx(addrlen, arg1, 2);
1756 
1757     qemu_log("%s(", name);
1758     print_sockfd(sockfd, 0);
1759     print_sockaddr(addr, addrlen, 0);
1760     qemu_log(")");
1761 }
1762 
1763 static void do_print_listen(const char *name, abi_long arg1)
1764 {
1765     abi_ulong sockfd, backlog;
1766 
1767     get_user_ualx(sockfd, arg1, 0);
1768     get_user_ualx(backlog, arg1, 1);
1769 
1770     qemu_log("%s(", name);
1771     print_sockfd(sockfd, 0);
1772     print_raw_param(TARGET_ABI_FMT_ld, backlog, 1);
1773     qemu_log(")");
1774 }
1775 
1776 static void do_print_socketpair(const char *name, abi_long arg1)
1777 {
1778     abi_ulong domain, type, protocol, tab;
1779 
1780     get_user_ualx(domain, arg1, 0);
1781     get_user_ualx(type, arg1, 1);
1782     get_user_ualx(protocol, arg1, 2);
1783     get_user_ualx(tab, arg1, 3);
1784 
1785     qemu_log("%s(", name);
1786     print_socket_domain(domain);
1787     qemu_log(",");
1788     print_socket_type(type);
1789     qemu_log(",");
1790     print_socket_protocol(domain, type, protocol);
1791     qemu_log(",");
1792     print_raw_param(TARGET_ABI_FMT_lx, tab, 1);
1793     qemu_log(")");
1794 }
1795 
1796 static void do_print_sendrecv(const char *name, abi_long arg1)
1797 {
1798     abi_ulong sockfd, msg, len, flags;
1799 
1800     get_user_ualx(sockfd, arg1, 0);
1801     get_user_ualx(msg, arg1, 1);
1802     get_user_ualx(len, arg1, 2);
1803     get_user_ualx(flags, arg1, 3);
1804 
1805     qemu_log("%s(", name);
1806     print_sockfd(sockfd, 0);
1807     print_buf(msg, len, 0);
1808     print_raw_param(TARGET_ABI_FMT_ld, len, 0);
1809     print_flags(msg_flags, flags, 1);
1810     qemu_log(")");
1811 }
1812 
1813 static void do_print_msgaddr(const char *name, abi_long arg1)
1814 {
1815     abi_ulong sockfd, msg, len, flags, addr, addrlen;
1816 
1817     get_user_ualx(sockfd, arg1, 0);
1818     get_user_ualx(msg, arg1, 1);
1819     get_user_ualx(len, arg1, 2);
1820     get_user_ualx(flags, arg1, 3);
1821     get_user_ualx(addr, arg1, 4);
1822     get_user_ualx(addrlen, arg1, 5);
1823 
1824     qemu_log("%s(", name);
1825     print_sockfd(sockfd, 0);
1826     print_buf(msg, len, 0);
1827     print_raw_param(TARGET_ABI_FMT_ld, len, 0);
1828     print_flags(msg_flags, flags, 0);
1829     print_sockaddr(addr, addrlen, 0);
1830     qemu_log(")");
1831 }
1832 
1833 static void do_print_shutdown(const char *name, abi_long arg1)
1834 {
1835     abi_ulong sockfd, how;
1836 
1837     get_user_ualx(sockfd, arg1, 0);
1838     get_user_ualx(how, arg1, 1);
1839 
1840     qemu_log("shutdown(");
1841     print_sockfd(sockfd, 0);
1842     switch (how) {
1843     case SHUT_RD:
1844         qemu_log("SHUT_RD");
1845         break;
1846     case SHUT_WR:
1847         qemu_log("SHUT_WR");
1848         break;
1849     case SHUT_RDWR:
1850         qemu_log("SHUT_RDWR");
1851         break;
1852     default:
1853         print_raw_param(TARGET_ABI_FMT_ld, how, 1);
1854         break;
1855     }
1856     qemu_log(")");
1857 }
1858 
1859 static void do_print_msg(const char *name, abi_long arg1)
1860 {
1861     abi_ulong sockfd, msg, flags;
1862 
1863     get_user_ualx(sockfd, arg1, 0);
1864     get_user_ualx(msg, arg1, 1);
1865     get_user_ualx(flags, arg1, 2);
1866 
1867     qemu_log("%s(", name);
1868     print_sockfd(sockfd, 0);
1869     print_pointer(msg, 0);
1870     print_flags(msg_flags, flags, 1);
1871     qemu_log(")");
1872 }
1873 
1874 static void do_print_sockopt(const char *name, abi_long arg1)
1875 {
1876     abi_ulong sockfd, level, optname, optval, optlen;
1877 
1878     get_user_ualx(sockfd, arg1, 0);
1879     get_user_ualx(level, arg1, 1);
1880     get_user_ualx(optname, arg1, 2);
1881     get_user_ualx(optval, arg1, 3);
1882     get_user_ualx(optlen, arg1, 4);
1883 
1884     qemu_log("%s(", name);
1885     print_sockfd(sockfd, 0);
1886     switch (level) {
1887     case SOL_TCP:
1888         qemu_log("SOL_TCP,");
1889         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1890         print_pointer(optval, 0);
1891         break;
1892     case SOL_IP:
1893         qemu_log("SOL_IP,");
1894         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1895         print_pointer(optval, 0);
1896         break;
1897     case SOL_RAW:
1898         qemu_log("SOL_RAW,");
1899         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1900         print_pointer(optval, 0);
1901         break;
1902     case TARGET_SOL_SOCKET:
1903         qemu_log("SOL_SOCKET,");
1904         switch (optname) {
1905         case TARGET_SO_DEBUG:
1906             qemu_log("SO_DEBUG,");
1907 print_optint:
1908             print_number(optval, 0);
1909             break;
1910         case TARGET_SO_REUSEADDR:
1911             qemu_log("SO_REUSEADDR,");
1912             goto print_optint;
1913         case TARGET_SO_REUSEPORT:
1914             qemu_log("SO_REUSEPORT,");
1915             goto print_optint;
1916         case TARGET_SO_TYPE:
1917             qemu_log("SO_TYPE,");
1918             goto print_optint;
1919         case TARGET_SO_ERROR:
1920             qemu_log("SO_ERROR,");
1921             goto print_optint;
1922         case TARGET_SO_DONTROUTE:
1923             qemu_log("SO_DONTROUTE,");
1924             goto print_optint;
1925         case TARGET_SO_BROADCAST:
1926             qemu_log("SO_BROADCAST,");
1927             goto print_optint;
1928         case TARGET_SO_SNDBUF:
1929             qemu_log("SO_SNDBUF,");
1930             goto print_optint;
1931         case TARGET_SO_RCVBUF:
1932             qemu_log("SO_RCVBUF,");
1933             goto print_optint;
1934         case TARGET_SO_KEEPALIVE:
1935             qemu_log("SO_KEEPALIVE,");
1936             goto print_optint;
1937         case TARGET_SO_OOBINLINE:
1938             qemu_log("SO_OOBINLINE,");
1939             goto print_optint;
1940         case TARGET_SO_NO_CHECK:
1941             qemu_log("SO_NO_CHECK,");
1942             goto print_optint;
1943         case TARGET_SO_PRIORITY:
1944             qemu_log("SO_PRIORITY,");
1945             goto print_optint;
1946         case TARGET_SO_BSDCOMPAT:
1947             qemu_log("SO_BSDCOMPAT,");
1948             goto print_optint;
1949         case TARGET_SO_PASSCRED:
1950             qemu_log("SO_PASSCRED,");
1951             goto print_optint;
1952         case TARGET_SO_TIMESTAMP:
1953             qemu_log("SO_TIMESTAMP,");
1954             goto print_optint;
1955         case TARGET_SO_RCVLOWAT:
1956             qemu_log("SO_RCVLOWAT,");
1957             goto print_optint;
1958         case TARGET_SO_RCVTIMEO:
1959             qemu_log("SO_RCVTIMEO,");
1960             print_timeval(optval, 0);
1961             break;
1962         case TARGET_SO_SNDTIMEO:
1963             qemu_log("SO_SNDTIMEO,");
1964             print_timeval(optval, 0);
1965             break;
1966         case TARGET_SO_ATTACH_FILTER: {
1967             struct target_sock_fprog *fprog;
1968 
1969             qemu_log("SO_ATTACH_FILTER,");
1970 
1971             if (lock_user_struct(VERIFY_READ, fprog, optval,  0)) {
1972                 struct target_sock_filter *filter;
1973                 qemu_log("{");
1974                 if (lock_user_struct(VERIFY_READ, filter,
1975                                      tswapal(fprog->filter),  0)) {
1976                     int i;
1977                     for (i = 0; i < tswap16(fprog->len) - 1; i++) {
1978                         qemu_log("[%d]{0x%x,%d,%d,0x%x},",
1979                                  i, tswap16(filter[i].code),
1980                                  filter[i].jt, filter[i].jf,
1981                                  tswap32(filter[i].k));
1982                     }
1983                     qemu_log("[%d]{0x%x,%d,%d,0x%x}",
1984                              i, tswap16(filter[i].code),
1985                              filter[i].jt, filter[i].jf,
1986                              tswap32(filter[i].k));
1987                 } else {
1988                     qemu_log(TARGET_ABI_FMT_lx, tswapal(fprog->filter));
1989                 }
1990                 qemu_log(",%d},", tswap16(fprog->len));
1991                 unlock_user(fprog, optval, 0);
1992             } else {
1993                 print_pointer(optval, 0);
1994             }
1995             break;
1996         }
1997         default:
1998             print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1999             print_pointer(optval, 0);
2000             break;
2001         }
2002         break;
2003     default:
2004         print_raw_param(TARGET_ABI_FMT_ld, level, 0);
2005         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
2006         print_pointer(optval, 0);
2007         break;
2008     }
2009     print_raw_param(TARGET_ABI_FMT_ld, optlen, 1);
2010     qemu_log(")");
2011 }
2012 
2013 #define PRINT_SOCKOP(name, func) \
2014     [TARGET_SYS_##name] = { #name, func }
2015 
2016 static struct {
2017     const char *name;
2018     void (*print)(const char *, abi_long);
2019 } scall[] = {
2020     PRINT_SOCKOP(SOCKET, do_print_socket),
2021     PRINT_SOCKOP(BIND, do_print_sockaddr),
2022     PRINT_SOCKOP(CONNECT, do_print_sockaddr),
2023     PRINT_SOCKOP(LISTEN, do_print_listen),
2024     PRINT_SOCKOP(ACCEPT, do_print_sockaddr),
2025     PRINT_SOCKOP(GETSOCKNAME, do_print_sockaddr),
2026     PRINT_SOCKOP(GETPEERNAME, do_print_sockaddr),
2027     PRINT_SOCKOP(SOCKETPAIR, do_print_socketpair),
2028     PRINT_SOCKOP(SEND, do_print_sendrecv),
2029     PRINT_SOCKOP(RECV, do_print_sendrecv),
2030     PRINT_SOCKOP(SENDTO, do_print_msgaddr),
2031     PRINT_SOCKOP(RECVFROM, do_print_msgaddr),
2032     PRINT_SOCKOP(SHUTDOWN, do_print_shutdown),
2033     PRINT_SOCKOP(SETSOCKOPT, do_print_sockopt),
2034     PRINT_SOCKOP(GETSOCKOPT, do_print_sockopt),
2035     PRINT_SOCKOP(SENDMSG, do_print_msg),
2036     PRINT_SOCKOP(RECVMSG, do_print_msg),
2037     PRINT_SOCKOP(ACCEPT4, NULL),
2038     PRINT_SOCKOP(RECVMMSG, NULL),
2039     PRINT_SOCKOP(SENDMMSG, NULL),
2040 };
2041 
2042 static void
2043 print_socketcall(const struct syscallname *name,
2044                  abi_long arg0, abi_long arg1, abi_long arg2,
2045                  abi_long arg3, abi_long arg4, abi_long arg5)
2046 {
2047     if (arg0 >= 0 && arg0 < ARRAY_SIZE(scall) && scall[arg0].print) {
2048         scall[arg0].print(scall[arg0].name, arg1);
2049         return;
2050     }
2051     print_syscall_prologue(name);
2052     print_raw_param(TARGET_ABI_FMT_ld, arg0, 0);
2053     print_raw_param(TARGET_ABI_FMT_ld, arg1, 0);
2054     print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
2055     print_raw_param(TARGET_ABI_FMT_ld, arg3, 0);
2056     print_raw_param(TARGET_ABI_FMT_ld, arg4, 0);
2057     print_raw_param(TARGET_ABI_FMT_ld, arg5, 0);
2058     print_syscall_epilogue(name);
2059 }
2060 #endif
2061 
2062 #if defined(TARGET_NR_bind)
2063 static void
2064 print_bind(const struct syscallname *name,
2065            abi_long arg0, abi_long arg1, abi_long arg2,
2066            abi_long arg3, abi_long arg4, abi_long arg5)
2067 {
2068     print_syscall_prologue(name);
2069     print_sockfd(arg0, 0);
2070     print_sockaddr(arg1, arg2, 1);
2071     print_syscall_epilogue(name);
2072 }
2073 #endif
2074 
2075 #if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) || \
2076     defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64)
2077 static void
2078 print_stat(const struct syscallname *name,
2079     abi_long arg0, abi_long arg1, abi_long arg2,
2080     abi_long arg3, abi_long arg4, abi_long arg5)
2081 {
2082     print_syscall_prologue(name);
2083     print_string(arg0, 0);
2084     print_pointer(arg1, 1);
2085     print_syscall_epilogue(name);
2086 }
2087 #define print_lstat     print_stat
2088 #define print_stat64	print_stat
2089 #define print_lstat64   print_stat
2090 #endif
2091 
2092 #if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
2093 static void
2094 print_fstat(const struct syscallname *name,
2095     abi_long arg0, abi_long arg1, abi_long arg2,
2096     abi_long arg3, abi_long arg4, abi_long arg5)
2097 {
2098     print_syscall_prologue(name);
2099     print_raw_param("%d", arg0, 0);
2100     print_pointer(arg1, 1);
2101     print_syscall_epilogue(name);
2102 }
2103 #define print_fstat64     print_fstat
2104 #endif
2105 
2106 #ifdef TARGET_NR_mkdir
2107 static void
2108 print_mkdir(const struct syscallname *name,
2109     abi_long arg0, abi_long arg1, abi_long arg2,
2110     abi_long arg3, abi_long arg4, abi_long arg5)
2111 {
2112     print_syscall_prologue(name);
2113     print_string(arg0, 0);
2114     print_file_mode(arg1, 1);
2115     print_syscall_epilogue(name);
2116 }
2117 #endif
2118 
2119 #ifdef TARGET_NR_mkdirat
2120 static void
2121 print_mkdirat(const struct syscallname *name,
2122     abi_long arg0, abi_long arg1, abi_long arg2,
2123     abi_long arg3, abi_long arg4, abi_long arg5)
2124 {
2125     print_syscall_prologue(name);
2126     print_at_dirfd(arg0, 0);
2127     print_string(arg1, 0);
2128     print_file_mode(arg2, 1);
2129     print_syscall_epilogue(name);
2130 }
2131 #endif
2132 
2133 #ifdef TARGET_NR_rmdir
2134 static void
2135 print_rmdir(const struct syscallname *name,
2136     abi_long arg0, abi_long arg1, abi_long arg2,
2137     abi_long arg3, abi_long arg4, abi_long arg5)
2138 {
2139     print_syscall_prologue(name);
2140     print_string(arg0, 0);
2141     print_syscall_epilogue(name);
2142 }
2143 #endif
2144 
2145 #ifdef TARGET_NR_rt_sigaction
2146 static void
2147 print_rt_sigaction(const struct syscallname *name,
2148     abi_long arg0, abi_long arg1, abi_long arg2,
2149     abi_long arg3, abi_long arg4, abi_long arg5)
2150 {
2151     print_syscall_prologue(name);
2152     print_signal(arg0, 0);
2153     print_pointer(arg1, 0);
2154     print_pointer(arg2, 1);
2155     print_syscall_epilogue(name);
2156 }
2157 #endif
2158 
2159 #ifdef TARGET_NR_rt_sigprocmask
2160 static void
2161 print_rt_sigprocmask(const struct syscallname *name,
2162     abi_long arg0, abi_long arg1, abi_long arg2,
2163     abi_long arg3, abi_long arg4, abi_long arg5)
2164 {
2165     const char *how = "UNKNOWN";
2166     print_syscall_prologue(name);
2167     switch(arg0) {
2168     case TARGET_SIG_BLOCK: how = "SIG_BLOCK"; break;
2169     case TARGET_SIG_UNBLOCK: how = "SIG_UNBLOCK"; break;
2170     case TARGET_SIG_SETMASK: how = "SIG_SETMASK"; break;
2171     }
2172     qemu_log("%s,", how);
2173     print_pointer(arg1, 0);
2174     print_pointer(arg2, 1);
2175     print_syscall_epilogue(name);
2176 }
2177 #endif
2178 
2179 #ifdef TARGET_NR_rt_sigqueueinfo
2180 static void
2181 print_rt_sigqueueinfo(const struct syscallname *name,
2182     abi_long arg0, abi_long arg1, abi_long arg2,
2183     abi_long arg3, abi_long arg4, abi_long arg5)
2184 {
2185     void *p;
2186     target_siginfo_t uinfo;
2187 
2188     print_syscall_prologue(name);
2189     print_raw_param("%d", arg0, 0);
2190     print_signal(arg1, 0);
2191     p = lock_user(VERIFY_READ, arg2, sizeof(target_siginfo_t), 1);
2192     if (p) {
2193         get_target_siginfo(&uinfo, p);
2194         print_siginfo(&uinfo);
2195 
2196         unlock_user(p, arg2, 0);
2197     } else {
2198         print_pointer(arg2, 1);
2199     }
2200     print_syscall_epilogue(name);
2201 }
2202 #endif
2203 
2204 #ifdef TARGET_NR_rt_tgsigqueueinfo
2205 static void
2206 print_rt_tgsigqueueinfo(const struct syscallname *name,
2207     abi_long arg0, abi_long arg1, abi_long arg2,
2208     abi_long arg3, abi_long arg4, abi_long arg5)
2209 {
2210     void *p;
2211     target_siginfo_t uinfo;
2212 
2213     print_syscall_prologue(name);
2214     print_raw_param("%d", arg0, 0);
2215     print_raw_param("%d", arg1, 0);
2216     print_signal(arg2, 0);
2217     p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
2218     if (p) {
2219         get_target_siginfo(&uinfo, p);
2220         print_siginfo(&uinfo);
2221 
2222         unlock_user(p, arg3, 0);
2223     } else {
2224         print_pointer(arg3, 1);
2225     }
2226     print_syscall_epilogue(name);
2227 }
2228 #endif
2229 
2230 #ifdef TARGET_NR_syslog
2231 static void
2232 print_syslog_action(abi_ulong arg, int last)
2233 {
2234     const char *type;
2235 
2236     switch (arg) {
2237         case TARGET_SYSLOG_ACTION_CLOSE: {
2238             type = "SYSLOG_ACTION_CLOSE";
2239             break;
2240         }
2241         case TARGET_SYSLOG_ACTION_OPEN: {
2242             type = "SYSLOG_ACTION_OPEN";
2243             break;
2244         }
2245         case TARGET_SYSLOG_ACTION_READ: {
2246             type = "SYSLOG_ACTION_READ";
2247             break;
2248         }
2249         case TARGET_SYSLOG_ACTION_READ_ALL: {
2250             type = "SYSLOG_ACTION_READ_ALL";
2251             break;
2252         }
2253         case TARGET_SYSLOG_ACTION_READ_CLEAR: {
2254             type = "SYSLOG_ACTION_READ_CLEAR";
2255             break;
2256         }
2257         case TARGET_SYSLOG_ACTION_CLEAR: {
2258             type = "SYSLOG_ACTION_CLEAR";
2259             break;
2260         }
2261         case TARGET_SYSLOG_ACTION_CONSOLE_OFF: {
2262             type = "SYSLOG_ACTION_CONSOLE_OFF";
2263             break;
2264         }
2265         case TARGET_SYSLOG_ACTION_CONSOLE_ON: {
2266             type = "SYSLOG_ACTION_CONSOLE_ON";
2267             break;
2268         }
2269         case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL: {
2270             type = "SYSLOG_ACTION_CONSOLE_LEVEL";
2271             break;
2272         }
2273         case TARGET_SYSLOG_ACTION_SIZE_UNREAD: {
2274             type = "SYSLOG_ACTION_SIZE_UNREAD";
2275             break;
2276         }
2277         case TARGET_SYSLOG_ACTION_SIZE_BUFFER: {
2278             type = "SYSLOG_ACTION_SIZE_BUFFER";
2279             break;
2280         }
2281         default: {
2282             print_raw_param("%ld", arg, last);
2283             return;
2284         }
2285     }
2286     qemu_log("%s%s", type, get_comma(last));
2287 }
2288 
2289 static void
2290 print_syslog(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_syslog_action(arg0, 0);
2296     print_pointer(arg1, 0);
2297     print_raw_param("%d", arg2, 1);
2298     print_syscall_epilogue(name);
2299 }
2300 #endif
2301 
2302 #ifdef TARGET_NR_mknod
2303 static void
2304 print_mknod(const struct syscallname *name,
2305     abi_long arg0, abi_long arg1, abi_long arg2,
2306     abi_long arg3, abi_long arg4, abi_long arg5)
2307 {
2308     int hasdev = (arg1 & (S_IFCHR|S_IFBLK));
2309 
2310     print_syscall_prologue(name);
2311     print_string(arg0, 0);
2312     print_file_mode(arg1, (hasdev == 0));
2313     if (hasdev) {
2314         print_raw_param("makedev(%d", major(arg2), 0);
2315         print_raw_param("%d)", minor(arg2), 1);
2316     }
2317     print_syscall_epilogue(name);
2318 }
2319 #endif
2320 
2321 #ifdef TARGET_NR_mknodat
2322 static void
2323 print_mknodat(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     int hasdev = (arg2 & (S_IFCHR|S_IFBLK));
2328 
2329     print_syscall_prologue(name);
2330     print_at_dirfd(arg0, 0);
2331     print_string(arg1, 0);
2332     print_file_mode(arg2, (hasdev == 0));
2333     if (hasdev) {
2334         print_raw_param("makedev(%d", major(arg3), 0);
2335         print_raw_param("%d)", minor(arg3), 1);
2336     }
2337     print_syscall_epilogue(name);
2338 }
2339 #endif
2340 
2341 #ifdef TARGET_NR_mq_open
2342 static void
2343 print_mq_open(const struct syscallname *name,
2344     abi_long arg0, abi_long arg1, abi_long arg2,
2345     abi_long arg3, abi_long arg4, abi_long arg5)
2346 {
2347     int is_creat = (arg1 & TARGET_O_CREAT);
2348 
2349     print_syscall_prologue(name);
2350     print_string(arg0, 0);
2351     print_open_flags(arg1, (is_creat == 0));
2352     if (is_creat) {
2353         print_file_mode(arg2, 0);
2354         print_pointer(arg3, 1);
2355     }
2356     print_syscall_epilogue(name);
2357 }
2358 #endif
2359 
2360 #ifdef TARGET_NR_open
2361 static void
2362 print_open(const struct syscallname *name,
2363     abi_long arg0, abi_long arg1, abi_long arg2,
2364     abi_long arg3, abi_long arg4, abi_long arg5)
2365 {
2366     int is_creat = (arg1 & TARGET_O_CREAT);
2367 
2368     print_syscall_prologue(name);
2369     print_string(arg0, 0);
2370     print_open_flags(arg1, (is_creat == 0));
2371     if (is_creat)
2372         print_file_mode(arg2, 1);
2373     print_syscall_epilogue(name);
2374 }
2375 #endif
2376 
2377 #ifdef TARGET_NR_openat
2378 static void
2379 print_openat(const struct syscallname *name,
2380     abi_long arg0, abi_long arg1, abi_long arg2,
2381     abi_long arg3, abi_long arg4, abi_long arg5)
2382 {
2383     int is_creat = (arg2 & TARGET_O_CREAT);
2384 
2385     print_syscall_prologue(name);
2386     print_at_dirfd(arg0, 0);
2387     print_string(arg1, 0);
2388     print_open_flags(arg2, (is_creat == 0));
2389     if (is_creat)
2390         print_file_mode(arg3, 1);
2391     print_syscall_epilogue(name);
2392 }
2393 #endif
2394 
2395 #ifdef TARGET_NR_mq_unlink
2396 static void
2397 print_mq_unlink(const struct syscallname *name,
2398     abi_long arg0, abi_long arg1, abi_long arg2,
2399     abi_long arg3, abi_long arg4, abi_long arg5)
2400 {
2401     print_syscall_prologue(name);
2402     print_string(arg0, 1);
2403     print_syscall_epilogue(name);
2404 }
2405 #endif
2406 
2407 #if defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)
2408 static void
2409 print_fstatat64(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_at_dirfd(arg0, 0);
2415     print_string(arg1, 0);
2416     print_pointer(arg2, 0);
2417     print_flags(at_file_flags, arg3, 1);
2418     print_syscall_epilogue(name);
2419 }
2420 #define print_newfstatat    print_fstatat64
2421 #endif
2422 
2423 #ifdef TARGET_NR_readlink
2424 static void
2425 print_readlink(const struct syscallname *name,
2426     abi_long arg0, abi_long arg1, abi_long arg2,
2427     abi_long arg3, abi_long arg4, abi_long arg5)
2428 {
2429     print_syscall_prologue(name);
2430     print_string(arg0, 0);
2431     print_pointer(arg1, 0);
2432     print_raw_param("%u", arg2, 1);
2433     print_syscall_epilogue(name);
2434 }
2435 #endif
2436 
2437 #ifdef TARGET_NR_readlinkat
2438 static void
2439 print_readlinkat(const struct syscallname *name,
2440     abi_long arg0, abi_long arg1, abi_long arg2,
2441     abi_long arg3, abi_long arg4, abi_long arg5)
2442 {
2443     print_syscall_prologue(name);
2444     print_at_dirfd(arg0, 0);
2445     print_string(arg1, 0);
2446     print_pointer(arg2, 0);
2447     print_raw_param("%u", arg3, 1);
2448     print_syscall_epilogue(name);
2449 }
2450 #endif
2451 
2452 #ifdef TARGET_NR_rename
2453 static void
2454 print_rename(const struct syscallname *name,
2455     abi_long arg0, abi_long arg1, abi_long arg2,
2456     abi_long arg3, abi_long arg4, abi_long arg5)
2457 {
2458     print_syscall_prologue(name);
2459     print_string(arg0, 0);
2460     print_string(arg1, 1);
2461     print_syscall_epilogue(name);
2462 }
2463 #endif
2464 
2465 #ifdef TARGET_NR_renameat
2466 static void
2467 print_renameat(const struct syscallname *name,
2468     abi_long arg0, abi_long arg1, abi_long arg2,
2469     abi_long arg3, abi_long arg4, abi_long arg5)
2470 {
2471     print_syscall_prologue(name);
2472     print_at_dirfd(arg0, 0);
2473     print_string(arg1, 0);
2474     print_at_dirfd(arg2, 0);
2475     print_string(arg3, 1);
2476     print_syscall_epilogue(name);
2477 }
2478 #endif
2479 
2480 #ifdef TARGET_NR_statfs
2481 static void
2482 print_statfs(const struct syscallname *name,
2483     abi_long arg0, abi_long arg1, abi_long arg2,
2484     abi_long arg3, abi_long arg4, abi_long arg5)
2485 {
2486     print_syscall_prologue(name);
2487     print_string(arg0, 0);
2488     print_pointer(arg1, 1);
2489     print_syscall_epilogue(name);
2490 }
2491 #endif
2492 
2493 #ifdef TARGET_NR_statfs64
2494 static void
2495 print_statfs64(const struct syscallname *name,
2496     abi_long arg0, abi_long arg1, abi_long arg2,
2497     abi_long arg3, abi_long arg4, abi_long arg5)
2498 {
2499     print_syscall_prologue(name);
2500     print_string(arg0, 0);
2501     print_pointer(arg1, 1);
2502     print_syscall_epilogue(name);
2503 }
2504 #endif
2505 
2506 #ifdef TARGET_NR_symlink
2507 static void
2508 print_symlink(const struct syscallname *name,
2509     abi_long arg0, abi_long arg1, abi_long arg2,
2510     abi_long arg3, abi_long arg4, abi_long arg5)
2511 {
2512     print_syscall_prologue(name);
2513     print_string(arg0, 0);
2514     print_string(arg1, 1);
2515     print_syscall_epilogue(name);
2516 }
2517 #endif
2518 
2519 #ifdef TARGET_NR_symlinkat
2520 static void
2521 print_symlinkat(const struct syscallname *name,
2522     abi_long arg0, abi_long arg1, abi_long arg2,
2523     abi_long arg3, abi_long arg4, abi_long arg5)
2524 {
2525     print_syscall_prologue(name);
2526     print_string(arg0, 0);
2527     print_at_dirfd(arg1, 0);
2528     print_string(arg2, 1);
2529     print_syscall_epilogue(name);
2530 }
2531 #endif
2532 
2533 #ifdef TARGET_NR_mount
2534 static void
2535 print_mount(const struct syscallname *name,
2536     abi_long arg0, abi_long arg1, abi_long arg2,
2537     abi_long arg3, abi_long arg4, abi_long arg5)
2538 {
2539     print_syscall_prologue(name);
2540     print_string(arg0, 0);
2541     print_string(arg1, 0);
2542     print_string(arg2, 0);
2543     print_flags(mount_flags, arg3, 0);
2544     print_pointer(arg4, 1);
2545     print_syscall_epilogue(name);
2546 }
2547 #endif
2548 
2549 #ifdef TARGET_NR_umount
2550 static void
2551 print_umount(const struct syscallname *name,
2552     abi_long arg0, abi_long arg1, abi_long arg2,
2553     abi_long arg3, abi_long arg4, abi_long arg5)
2554 {
2555     print_syscall_prologue(name);
2556     print_string(arg0, 1);
2557     print_syscall_epilogue(name);
2558 }
2559 #endif
2560 
2561 #ifdef TARGET_NR_umount2
2562 static void
2563 print_umount2(const struct syscallname *name,
2564     abi_long arg0, abi_long arg1, abi_long arg2,
2565     abi_long arg3, abi_long arg4, abi_long arg5)
2566 {
2567     print_syscall_prologue(name);
2568     print_string(arg0, 0);
2569     print_flags(umount2_flags, arg1, 1);
2570     print_syscall_epilogue(name);
2571 }
2572 #endif
2573 
2574 #ifdef TARGET_NR_unlink
2575 static void
2576 print_unlink(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_string(arg0, 1);
2582     print_syscall_epilogue(name);
2583 }
2584 #endif
2585 
2586 #ifdef TARGET_NR_unlinkat
2587 static void
2588 print_unlinkat(const struct syscallname *name,
2589     abi_long arg0, abi_long arg1, abi_long arg2,
2590     abi_long arg3, abi_long arg4, abi_long arg5)
2591 {
2592     print_syscall_prologue(name);
2593     print_at_dirfd(arg0, 0);
2594     print_string(arg1, 0);
2595     print_flags(unlinkat_flags, arg2, 1);
2596     print_syscall_epilogue(name);
2597 }
2598 #endif
2599 
2600 #ifdef TARGET_NR_utime
2601 static void
2602 print_utime(const struct syscallname *name,
2603     abi_long arg0, abi_long arg1, abi_long arg2,
2604     abi_long arg3, abi_long arg4, abi_long arg5)
2605 {
2606     print_syscall_prologue(name);
2607     print_string(arg0, 0);
2608     print_pointer(arg1, 1);
2609     print_syscall_epilogue(name);
2610 }
2611 #endif
2612 
2613 #ifdef TARGET_NR_utimes
2614 static void
2615 print_utimes(const struct syscallname *name,
2616     abi_long arg0, abi_long arg1, abi_long arg2,
2617     abi_long arg3, abi_long arg4, abi_long arg5)
2618 {
2619     print_syscall_prologue(name);
2620     print_string(arg0, 0);
2621     print_pointer(arg1, 1);
2622     print_syscall_epilogue(name);
2623 }
2624 #endif
2625 
2626 #ifdef TARGET_NR_utimensat
2627 static void
2628 print_utimensat(const struct syscallname *name,
2629     abi_long arg0, abi_long arg1, abi_long arg2,
2630     abi_long arg3, abi_long arg4, abi_long arg5)
2631 {
2632     print_syscall_prologue(name);
2633     print_at_dirfd(arg0, 0);
2634     print_string(arg1, 0);
2635     print_pointer(arg2, 0);
2636     print_flags(at_file_flags, arg3, 1);
2637     print_syscall_epilogue(name);
2638 }
2639 #endif
2640 
2641 #if defined(TARGET_NR_mmap) || defined(TARGET_NR_mmap2)
2642 static void
2643 print_mmap(const struct syscallname *name,
2644     abi_long arg0, abi_long arg1, abi_long arg2,
2645     abi_long arg3, abi_long arg4, abi_long arg5)
2646 {
2647     print_syscall_prologue(name);
2648     print_pointer(arg0, 0);
2649     print_raw_param("%d", arg1, 0);
2650     print_flags(mmap_prot_flags, arg2, 0);
2651     print_flags(mmap_flags, arg3, 0);
2652     print_raw_param("%d", arg4, 0);
2653     print_raw_param("%#x", arg5, 1);
2654     print_syscall_epilogue(name);
2655 }
2656 #define print_mmap2     print_mmap
2657 #endif
2658 
2659 #ifdef TARGET_NR_mprotect
2660 static void
2661 print_mprotect(const struct syscallname *name,
2662     abi_long arg0, abi_long arg1, abi_long arg2,
2663     abi_long arg3, abi_long arg4, abi_long arg5)
2664 {
2665     print_syscall_prologue(name);
2666     print_pointer(arg0, 0);
2667     print_raw_param("%d", arg1, 0);
2668     print_flags(mmap_prot_flags, arg2, 1);
2669     print_syscall_epilogue(name);
2670 }
2671 #endif
2672 
2673 #ifdef TARGET_NR_munmap
2674 static void
2675 print_munmap(const struct syscallname *name,
2676     abi_long arg0, abi_long arg1, abi_long arg2,
2677     abi_long arg3, abi_long arg4, abi_long arg5)
2678 {
2679     print_syscall_prologue(name);
2680     print_pointer(arg0, 0);
2681     print_raw_param("%d", arg1, 1);
2682     print_syscall_epilogue(name);
2683 }
2684 #endif
2685 
2686 #ifdef TARGET_NR_futex
2687 static void print_futex_op(abi_long tflag, int last)
2688 {
2689 #define print_op(val) \
2690 if( cmd == val ) { \
2691     qemu_log(#val); \
2692     return; \
2693 }
2694 
2695     int cmd = (int)tflag;
2696 #ifdef FUTEX_PRIVATE_FLAG
2697     if (cmd & FUTEX_PRIVATE_FLAG) {
2698         qemu_log("FUTEX_PRIVATE_FLAG|");
2699         cmd &= ~FUTEX_PRIVATE_FLAG;
2700     }
2701 #endif
2702 #ifdef FUTEX_CLOCK_REALTIME
2703     if (cmd & FUTEX_CLOCK_REALTIME) {
2704         qemu_log("FUTEX_CLOCK_REALTIME|");
2705         cmd &= ~FUTEX_CLOCK_REALTIME;
2706     }
2707 #endif
2708     print_op(FUTEX_WAIT)
2709     print_op(FUTEX_WAKE)
2710     print_op(FUTEX_FD)
2711     print_op(FUTEX_REQUEUE)
2712     print_op(FUTEX_CMP_REQUEUE)
2713     print_op(FUTEX_WAKE_OP)
2714     print_op(FUTEX_LOCK_PI)
2715     print_op(FUTEX_UNLOCK_PI)
2716     print_op(FUTEX_TRYLOCK_PI)
2717 #ifdef FUTEX_WAIT_BITSET
2718     print_op(FUTEX_WAIT_BITSET)
2719 #endif
2720 #ifdef FUTEX_WAKE_BITSET
2721     print_op(FUTEX_WAKE_BITSET)
2722 #endif
2723     /* unknown values */
2724     qemu_log("%d", cmd);
2725 }
2726 
2727 static void
2728 print_futex(const struct syscallname *name,
2729     abi_long arg0, abi_long arg1, abi_long arg2,
2730     abi_long arg3, abi_long arg4, abi_long arg5)
2731 {
2732     print_syscall_prologue(name);
2733     print_pointer(arg0, 0);
2734     print_futex_op(arg1, 0);
2735     print_raw_param(",%d", arg2, 0);
2736     print_pointer(arg3, 0); /* struct timespec */
2737     print_pointer(arg4, 0);
2738     print_raw_param("%d", arg4, 1);
2739     print_syscall_epilogue(name);
2740 }
2741 #endif
2742 
2743 #ifdef TARGET_NR_kill
2744 static void
2745 print_kill(const struct syscallname *name,
2746     abi_long arg0, abi_long arg1, abi_long arg2,
2747     abi_long arg3, abi_long arg4, abi_long arg5)
2748 {
2749     print_syscall_prologue(name);
2750     print_raw_param("%d", arg0, 0);
2751     print_signal(arg1, 1);
2752     print_syscall_epilogue(name);
2753 }
2754 #endif
2755 
2756 #ifdef TARGET_NR_tkill
2757 static void
2758 print_tkill(const struct syscallname *name,
2759     abi_long arg0, abi_long arg1, abi_long arg2,
2760     abi_long arg3, abi_long arg4, abi_long arg5)
2761 {
2762     print_syscall_prologue(name);
2763     print_raw_param("%d", arg0, 0);
2764     print_signal(arg1, 1);
2765     print_syscall_epilogue(name);
2766 }
2767 #endif
2768 
2769 #ifdef TARGET_NR_tgkill
2770 static void
2771 print_tgkill(const struct syscallname *name,
2772     abi_long arg0, abi_long arg1, abi_long arg2,
2773     abi_long arg3, abi_long arg4, abi_long arg5)
2774 {
2775     print_syscall_prologue(name);
2776     print_raw_param("%d", arg0, 0);
2777     print_raw_param("%d", arg1, 0);
2778     print_signal(arg2, 1);
2779     print_syscall_epilogue(name);
2780 }
2781 #endif
2782 
2783 #ifdef TARGET_NR_statx
2784 static void
2785 print_statx(const struct syscallname *name,
2786             abi_long arg0, abi_long arg1, abi_long arg2,
2787             abi_long arg3, abi_long arg4, abi_long arg5)
2788 {
2789     print_syscall_prologue(name);
2790     print_at_dirfd(arg0, 0);
2791     print_string(arg1, 0);
2792     print_flags(statx_flags, arg2, 0);
2793     print_flags(statx_mask, arg3, 0);
2794     print_pointer(arg4, 1);
2795     print_syscall_epilogue(name);
2796 }
2797 #endif
2798 
2799 /*
2800  * An array of all of the syscalls we know about
2801  */
2802 
2803 static const struct syscallname scnames[] = {
2804 #include "strace.list"
2805 };
2806 
2807 static int nsyscalls = ARRAY_SIZE(scnames);
2808 
2809 /*
2810  * The public interface to this module.
2811  */
2812 void
2813 print_syscall(int num,
2814               abi_long arg1, abi_long arg2, abi_long arg3,
2815               abi_long arg4, abi_long arg5, abi_long arg6)
2816 {
2817     int i;
2818     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 ")";
2819 
2820     qemu_log("%d ", getpid());
2821 
2822     for(i=0;i<nsyscalls;i++)
2823         if( scnames[i].nr == num ) {
2824             if( scnames[i].call != NULL ) {
2825                 scnames[i].call(
2826                     &scnames[i], arg1, arg2, arg3, arg4, arg5, arg6);
2827             } else {
2828                 /* XXX: this format system is broken because it uses
2829                    host types and host pointers for strings */
2830                 if( scnames[i].format != NULL )
2831                     format = scnames[i].format;
2832                 qemu_log(format,
2833                          scnames[i].name, arg1, arg2, arg3, arg4, arg5, arg6);
2834             }
2835             return;
2836         }
2837     qemu_log("Unknown syscall %d\n", num);
2838 }
2839 
2840 
2841 void
2842 print_syscall_ret(int num, abi_long ret)
2843 {
2844     int i;
2845     const char *errstr = NULL;
2846 
2847     for(i=0;i<nsyscalls;i++)
2848         if( scnames[i].nr == num ) {
2849             if( scnames[i].result != NULL ) {
2850                 scnames[i].result(&scnames[i], ret);
2851             } else {
2852                 if (ret < 0) {
2853                     errstr = target_strerror(-ret);
2854                 }
2855                 if (errstr) {
2856                     qemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n",
2857                              -ret, errstr);
2858                 } else {
2859                     qemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
2860                 }
2861             }
2862             break;
2863         }
2864 }
2865 
2866 void print_taken_signal(int target_signum, const target_siginfo_t *tinfo)
2867 {
2868     /* Print the strace output for a signal being taken:
2869      * --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0} ---
2870      */
2871     qemu_log("--- ");
2872     print_signal(target_signum, 1);
2873     qemu_log(" ");
2874     print_siginfo(tinfo);
2875     qemu_log(" ---\n");
2876 }
2877