xref: /openbmc/qemu/linux-user/strace.c (revision 64547a3b)
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 & TARGET_SOCK_TYPE_MASK) {
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     if (type & TARGET_SOCK_CLOEXEC) {
468         qemu_log("|SOCK_CLOEXEC");
469     }
470     if (type & TARGET_SOCK_NONBLOCK) {
471         qemu_log("|SOCK_NONBLOCK");
472     }
473 }
474 
475 static void
476 print_socket_protocol(int domain, int type, int protocol)
477 {
478     if (domain == AF_PACKET ||
479         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
480         switch (protocol) {
481         case 0x0003:
482             qemu_log("ETH_P_ALL");
483             break;
484         default:
485             qemu_log("%d", protocol);
486         }
487         return;
488     }
489 
490     if (domain == PF_NETLINK) {
491         switch (protocol) {
492         case NETLINK_ROUTE:
493             qemu_log("NETLINK_ROUTE");
494             break;
495         case NETLINK_AUDIT:
496             qemu_log("NETLINK_AUDIT");
497             break;
498         case NETLINK_NETFILTER:
499             qemu_log("NETLINK_NETFILTER");
500             break;
501         case NETLINK_KOBJECT_UEVENT:
502             qemu_log("NETLINK_KOBJECT_UEVENT");
503             break;
504         case NETLINK_RDMA:
505             qemu_log("NETLINK_RDMA");
506             break;
507         case NETLINK_CRYPTO:
508             qemu_log("NETLINK_CRYPTO");
509             break;
510         default:
511             qemu_log("%d", protocol);
512             break;
513         }
514         return;
515     }
516 
517     switch (protocol) {
518     case IPPROTO_IP:
519         qemu_log("IPPROTO_IP");
520         break;
521     case IPPROTO_TCP:
522         qemu_log("IPPROTO_TCP");
523         break;
524     case IPPROTO_UDP:
525         qemu_log("IPPROTO_UDP");
526         break;
527     case IPPROTO_RAW:
528         qemu_log("IPPROTO_RAW");
529         break;
530     default:
531         qemu_log("%d", protocol);
532         break;
533     }
534 }
535 
536 
537 #ifdef TARGET_NR__newselect
538 static void
539 print_fdset(int n, abi_ulong target_fds_addr)
540 {
541     int i;
542 
543     qemu_log("[");
544     if( target_fds_addr ) {
545         abi_long *target_fds;
546 
547         target_fds = lock_user(VERIFY_READ,
548                                target_fds_addr,
549                                sizeof(*target_fds)*(n / TARGET_ABI_BITS + 1),
550                                1);
551 
552         if (!target_fds)
553             return;
554 
555         for (i=n; i>=0; i--) {
556             if ((tswapal(target_fds[i / TARGET_ABI_BITS]) >> (i & (TARGET_ABI_BITS - 1))) & 1)
557                 qemu_log("%d,", i);
558             }
559         unlock_user(target_fds, target_fds_addr, 0);
560     }
561     qemu_log("]");
562 }
563 #endif
564 
565 #ifdef TARGET_NR_clock_adjtime
566 /* IDs of the various system clocks */
567 #define TARGET_CLOCK_REALTIME              0
568 #define TARGET_CLOCK_MONOTONIC             1
569 #define TARGET_CLOCK_PROCESS_CPUTIME_ID    2
570 #define TARGET_CLOCK_THREAD_CPUTIME_ID     3
571 #define TARGET_CLOCK_MONOTONIC_RAW         4
572 #define TARGET_CLOCK_REALTIME_COARSE       5
573 #define TARGET_CLOCK_MONOTONIC_COARSE      6
574 #define TARGET_CLOCK_BOOTTIME              7
575 #define TARGET_CLOCK_REALTIME_ALARM        8
576 #define TARGET_CLOCK_BOOTTIME_ALARM        9
577 #define TARGET_CLOCK_SGI_CYCLE             10
578 #define TARGET_CLOCK_TAI                   11
579 
580 static void
581 print_clockid(int clockid, int last)
582 {
583     switch (clockid) {
584     case TARGET_CLOCK_REALTIME:
585         qemu_log("CLOCK_REALTIME");
586         break;
587     case TARGET_CLOCK_MONOTONIC:
588         qemu_log("CLOCK_MONOTONIC");
589         break;
590     case TARGET_CLOCK_PROCESS_CPUTIME_ID:
591         qemu_log("CLOCK_PROCESS_CPUTIME_ID");
592         break;
593     case TARGET_CLOCK_THREAD_CPUTIME_ID:
594         qemu_log("CLOCK_THREAD_CPUTIME_ID");
595         break;
596     case TARGET_CLOCK_MONOTONIC_RAW:
597         qemu_log("CLOCK_MONOTONIC_RAW");
598         break;
599     case TARGET_CLOCK_REALTIME_COARSE:
600         qemu_log("CLOCK_REALTIME_COARSE");
601         break;
602     case TARGET_CLOCK_MONOTONIC_COARSE:
603         qemu_log("CLOCK_MONOTONIC_COARSE");
604         break;
605     case TARGET_CLOCK_BOOTTIME:
606         qemu_log("CLOCK_BOOTTIME");
607         break;
608     case TARGET_CLOCK_REALTIME_ALARM:
609         qemu_log("CLOCK_REALTIME_ALARM");
610         break;
611     case TARGET_CLOCK_BOOTTIME_ALARM:
612         qemu_log("CLOCK_BOOTTIME_ALARM");
613         break;
614     case TARGET_CLOCK_SGI_CYCLE:
615         qemu_log("CLOCK_SGI_CYCLE");
616         break;
617     case TARGET_CLOCK_TAI:
618         qemu_log("CLOCK_TAI");
619         break;
620     default:
621         qemu_log("%d", clockid);
622         break;
623     }
624     qemu_log("%s", get_comma(last));
625 }
626 #endif
627 
628 /*
629  * Sysycall specific output functions
630  */
631 
632 /* select */
633 #ifdef TARGET_NR__newselect
634 static long newselect_arg1 = 0;
635 static long newselect_arg2 = 0;
636 static long newselect_arg3 = 0;
637 static long newselect_arg4 = 0;
638 static long newselect_arg5 = 0;
639 
640 static void
641 print_newselect(const struct syscallname *name,
642                 abi_long arg1, abi_long arg2, abi_long arg3,
643                 abi_long arg4, abi_long arg5, abi_long arg6)
644 {
645     qemu_log("%s(" TARGET_ABI_FMT_ld ",", name->name, arg1);
646     print_fdset(arg1, arg2);
647     qemu_log(",");
648     print_fdset(arg1, arg3);
649     qemu_log(",");
650     print_fdset(arg1, arg4);
651     qemu_log(",");
652     print_timeval(arg5, 1);
653     qemu_log(")");
654 
655     /* save for use in the return output function below */
656     newselect_arg1=arg1;
657     newselect_arg2=arg2;
658     newselect_arg3=arg3;
659     newselect_arg4=arg4;
660     newselect_arg5=arg5;
661 }
662 #endif
663 
664 #ifdef TARGET_NR_semctl
665 static void
666 print_semctl(const struct syscallname *name,
667              abi_long arg1, abi_long arg2, abi_long arg3,
668              abi_long arg4, abi_long arg5, abi_long arg6)
669 {
670     qemu_log("%s(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",",
671              name->name, arg1, arg2);
672     print_ipc_cmd(arg3);
673     qemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
674 }
675 #endif
676 
677 static void
678 print_execve(const struct syscallname *name,
679              abi_long arg1, abi_long arg2, abi_long arg3,
680              abi_long arg4, abi_long arg5, abi_long arg6)
681 {
682     abi_ulong arg_ptr_addr;
683     char *s;
684 
685     if (!(s = lock_user_string(arg1)))
686         return;
687     qemu_log("%s(\"%s\",{", name->name, s);
688     unlock_user(s, arg1, 0);
689 
690     for (arg_ptr_addr = arg2; ; arg_ptr_addr += sizeof(abi_ulong)) {
691         abi_ulong *arg_ptr, arg_addr;
692 
693         arg_ptr = lock_user(VERIFY_READ, arg_ptr_addr, sizeof(abi_ulong), 1);
694         if (!arg_ptr)
695             return;
696     arg_addr = tswapal(*arg_ptr);
697         unlock_user(arg_ptr, arg_ptr_addr, 0);
698         if (!arg_addr)
699             break;
700         if ((s = lock_user_string(arg_addr))) {
701             qemu_log("\"%s\",", s);
702             unlock_user(s, arg_addr, 0);
703         }
704     }
705 
706     qemu_log("NULL})");
707 }
708 
709 #ifdef TARGET_NR_ipc
710 static void
711 print_ipc(const struct syscallname *name,
712           abi_long arg1, abi_long arg2, abi_long arg3,
713           abi_long arg4, abi_long arg5, abi_long arg6)
714 {
715     switch(arg1) {
716     case IPCOP_semctl:
717         qemu_log("semctl(" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld ",",
718                  arg1, arg2);
719         print_ipc_cmd(arg3);
720         qemu_log(",0x" TARGET_ABI_FMT_lx ")", arg4);
721         break;
722     default:
723         qemu_log(("%s("
724                   TARGET_ABI_FMT_ld ","
725                   TARGET_ABI_FMT_ld ","
726                   TARGET_ABI_FMT_ld ","
727                   TARGET_ABI_FMT_ld
728                   ")"),
729                  name->name, arg1, arg2, arg3, arg4);
730     }
731 }
732 #endif
733 
734 /*
735  * Variants for the return value output function
736  */
737 
738 static void
739 print_syscall_ret_addr(const struct syscallname *name, abi_long ret)
740 {
741     const char *errstr = NULL;
742 
743     if (ret < 0) {
744         errstr = target_strerror(-ret);
745     }
746     if (errstr) {
747         qemu_log(" = -1 errno=%d (%s)\n", (int)-ret, errstr);
748     } else {
749         qemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
750     }
751 }
752 
753 #if 0 /* currently unused */
754 static void
755 print_syscall_ret_raw(struct syscallname *name, abi_long ret)
756 {
757         qemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
758 }
759 #endif
760 
761 #ifdef TARGET_NR__newselect
762 static void
763 print_syscall_ret_newselect(const struct syscallname *name, abi_long ret)
764 {
765     qemu_log(" = 0x" TARGET_ABI_FMT_lx " (", ret);
766     print_fdset(newselect_arg1,newselect_arg2);
767     qemu_log(",");
768     print_fdset(newselect_arg1,newselect_arg3);
769     qemu_log(",");
770     print_fdset(newselect_arg1,newselect_arg4);
771     qemu_log(",");
772     print_timeval(newselect_arg5, 1);
773     qemu_log(")\n");
774 }
775 #endif
776 
777 /* special meanings of adjtimex()' non-negative return values */
778 #define TARGET_TIME_OK       0   /* clock synchronized, no leap second */
779 #define TARGET_TIME_INS      1   /* insert leap second */
780 #define TARGET_TIME_DEL      2   /* delete leap second */
781 #define TARGET_TIME_OOP      3   /* leap second in progress */
782 #define TARGET_TIME_WAIT     4   /* leap second has occurred */
783 #define TARGET_TIME_ERROR    5   /* clock not synchronized */
784 #ifdef TARGET_NR_adjtimex
785 static void
786 print_syscall_ret_adjtimex(const struct syscallname *name, abi_long ret)
787 {
788     const char *errstr = NULL;
789 
790     qemu_log(" = ");
791     if (ret < 0) {
792         qemu_log("-1 errno=%d", errno);
793         errstr = target_strerror(-ret);
794         if (errstr) {
795             qemu_log(" (%s)", errstr);
796         }
797     } else {
798         qemu_log(TARGET_ABI_FMT_ld, ret);
799         switch (ret) {
800         case TARGET_TIME_OK:
801             qemu_log(" TIME_OK (clock synchronized, no leap second)");
802             break;
803         case TARGET_TIME_INS:
804             qemu_log(" TIME_INS (insert leap second)");
805             break;
806         case TARGET_TIME_DEL:
807             qemu_log(" TIME_DEL (delete leap second)");
808             break;
809         case TARGET_TIME_OOP:
810             qemu_log(" TIME_OOP (leap second in progress)");
811             break;
812         case TARGET_TIME_WAIT:
813             qemu_log(" TIME_WAIT (leap second has occurred)");
814             break;
815         case TARGET_TIME_ERROR:
816             qemu_log(" TIME_ERROR (clock not synchronized)");
817             break;
818         }
819     }
820 
821     qemu_log("\n");
822 }
823 #endif
824 
825 UNUSED static struct flags access_flags[] = {
826     FLAG_GENERIC(F_OK),
827     FLAG_GENERIC(R_OK),
828     FLAG_GENERIC(W_OK),
829     FLAG_GENERIC(X_OK),
830     FLAG_END,
831 };
832 
833 UNUSED static struct flags at_file_flags[] = {
834 #ifdef AT_EACCESS
835     FLAG_GENERIC(AT_EACCESS),
836 #endif
837 #ifdef AT_SYMLINK_NOFOLLOW
838     FLAG_GENERIC(AT_SYMLINK_NOFOLLOW),
839 #endif
840     FLAG_END,
841 };
842 
843 UNUSED static struct flags unlinkat_flags[] = {
844 #ifdef AT_REMOVEDIR
845     FLAG_GENERIC(AT_REMOVEDIR),
846 #endif
847     FLAG_END,
848 };
849 
850 UNUSED static struct flags mode_flags[] = {
851     FLAG_GENERIC(S_IFSOCK),
852     FLAG_GENERIC(S_IFLNK),
853     FLAG_GENERIC(S_IFREG),
854     FLAG_GENERIC(S_IFBLK),
855     FLAG_GENERIC(S_IFDIR),
856     FLAG_GENERIC(S_IFCHR),
857     FLAG_GENERIC(S_IFIFO),
858     FLAG_END,
859 };
860 
861 UNUSED static struct flags open_access_flags[] = {
862     FLAG_TARGET(O_RDONLY),
863     FLAG_TARGET(O_WRONLY),
864     FLAG_TARGET(O_RDWR),
865     FLAG_END,
866 };
867 
868 UNUSED static struct flags open_flags[] = {
869     FLAG_TARGET(O_APPEND),
870     FLAG_TARGET(O_CREAT),
871     FLAG_TARGET(O_DIRECTORY),
872     FLAG_TARGET(O_EXCL),
873     FLAG_TARGET(O_LARGEFILE),
874     FLAG_TARGET(O_NOCTTY),
875     FLAG_TARGET(O_NOFOLLOW),
876     FLAG_TARGET(O_NONBLOCK),      /* also O_NDELAY */
877     FLAG_TARGET(O_DSYNC),
878     FLAG_TARGET(__O_SYNC),
879     FLAG_TARGET(O_TRUNC),
880 #ifdef O_DIRECT
881     FLAG_TARGET(O_DIRECT),
882 #endif
883 #ifdef O_NOATIME
884     FLAG_TARGET(O_NOATIME),
885 #endif
886 #ifdef O_CLOEXEC
887     FLAG_TARGET(O_CLOEXEC),
888 #endif
889 #ifdef O_PATH
890     FLAG_TARGET(O_PATH),
891 #endif
892 #ifdef O_TMPFILE
893     FLAG_TARGET(O_TMPFILE),
894     FLAG_TARGET(__O_TMPFILE),
895 #endif
896     FLAG_END,
897 };
898 
899 UNUSED static struct flags mount_flags[] = {
900 #ifdef MS_BIND
901     FLAG_GENERIC(MS_BIND),
902 #endif
903 #ifdef MS_DIRSYNC
904     FLAG_GENERIC(MS_DIRSYNC),
905 #endif
906     FLAG_GENERIC(MS_MANDLOCK),
907 #ifdef MS_MOVE
908     FLAG_GENERIC(MS_MOVE),
909 #endif
910     FLAG_GENERIC(MS_NOATIME),
911     FLAG_GENERIC(MS_NODEV),
912     FLAG_GENERIC(MS_NODIRATIME),
913     FLAG_GENERIC(MS_NOEXEC),
914     FLAG_GENERIC(MS_NOSUID),
915     FLAG_GENERIC(MS_RDONLY),
916 #ifdef MS_RELATIME
917     FLAG_GENERIC(MS_RELATIME),
918 #endif
919     FLAG_GENERIC(MS_REMOUNT),
920     FLAG_GENERIC(MS_SYNCHRONOUS),
921     FLAG_END,
922 };
923 
924 UNUSED static struct flags umount2_flags[] = {
925 #ifdef MNT_FORCE
926     FLAG_GENERIC(MNT_FORCE),
927 #endif
928 #ifdef MNT_DETACH
929     FLAG_GENERIC(MNT_DETACH),
930 #endif
931 #ifdef MNT_EXPIRE
932     FLAG_GENERIC(MNT_EXPIRE),
933 #endif
934     FLAG_END,
935 };
936 
937 UNUSED static struct flags mmap_prot_flags[] = {
938     FLAG_GENERIC(PROT_NONE),
939     FLAG_GENERIC(PROT_EXEC),
940     FLAG_GENERIC(PROT_READ),
941     FLAG_GENERIC(PROT_WRITE),
942     FLAG_TARGET(PROT_SEM),
943     FLAG_GENERIC(PROT_GROWSDOWN),
944     FLAG_GENERIC(PROT_GROWSUP),
945     FLAG_END,
946 };
947 
948 UNUSED static struct flags mmap_flags[] = {
949     FLAG_TARGET(MAP_SHARED),
950     FLAG_TARGET(MAP_PRIVATE),
951     FLAG_TARGET(MAP_ANONYMOUS),
952     FLAG_TARGET(MAP_DENYWRITE),
953     FLAG_TARGET(MAP_FIXED),
954     FLAG_TARGET(MAP_GROWSDOWN),
955     FLAG_TARGET(MAP_EXECUTABLE),
956 #ifdef MAP_LOCKED
957     FLAG_TARGET(MAP_LOCKED),
958 #endif
959 #ifdef MAP_NONBLOCK
960     FLAG_TARGET(MAP_NONBLOCK),
961 #endif
962     FLAG_TARGET(MAP_NORESERVE),
963 #ifdef MAP_POPULATE
964     FLAG_TARGET(MAP_POPULATE),
965 #endif
966 #ifdef TARGET_MAP_UNINITIALIZED
967     FLAG_TARGET(MAP_UNINITIALIZED),
968 #endif
969     FLAG_END,
970 };
971 
972 UNUSED static struct flags clone_flags[] = {
973     FLAG_GENERIC(CLONE_VM),
974     FLAG_GENERIC(CLONE_FS),
975     FLAG_GENERIC(CLONE_FILES),
976     FLAG_GENERIC(CLONE_SIGHAND),
977     FLAG_GENERIC(CLONE_PTRACE),
978     FLAG_GENERIC(CLONE_VFORK),
979     FLAG_GENERIC(CLONE_PARENT),
980     FLAG_GENERIC(CLONE_THREAD),
981     FLAG_GENERIC(CLONE_NEWNS),
982     FLAG_GENERIC(CLONE_SYSVSEM),
983     FLAG_GENERIC(CLONE_SETTLS),
984     FLAG_GENERIC(CLONE_PARENT_SETTID),
985     FLAG_GENERIC(CLONE_CHILD_CLEARTID),
986     FLAG_GENERIC(CLONE_DETACHED),
987     FLAG_GENERIC(CLONE_UNTRACED),
988     FLAG_GENERIC(CLONE_CHILD_SETTID),
989 #if defined(CLONE_NEWUTS)
990     FLAG_GENERIC(CLONE_NEWUTS),
991 #endif
992 #if defined(CLONE_NEWIPC)
993     FLAG_GENERIC(CLONE_NEWIPC),
994 #endif
995 #if defined(CLONE_NEWUSER)
996     FLAG_GENERIC(CLONE_NEWUSER),
997 #endif
998 #if defined(CLONE_NEWPID)
999     FLAG_GENERIC(CLONE_NEWPID),
1000 #endif
1001 #if defined(CLONE_NEWNET)
1002     FLAG_GENERIC(CLONE_NEWNET),
1003 #endif
1004 #if defined(CLONE_IO)
1005     FLAG_GENERIC(CLONE_IO),
1006 #endif
1007     FLAG_END,
1008 };
1009 
1010 UNUSED static struct flags msg_flags[] = {
1011     /* send */
1012     FLAG_GENERIC(MSG_CONFIRM),
1013     FLAG_GENERIC(MSG_DONTROUTE),
1014     FLAG_GENERIC(MSG_DONTWAIT),
1015     FLAG_GENERIC(MSG_EOR),
1016     FLAG_GENERIC(MSG_MORE),
1017     FLAG_GENERIC(MSG_NOSIGNAL),
1018     FLAG_GENERIC(MSG_OOB),
1019     /* recv */
1020     FLAG_GENERIC(MSG_CMSG_CLOEXEC),
1021     FLAG_GENERIC(MSG_ERRQUEUE),
1022     FLAG_GENERIC(MSG_PEEK),
1023     FLAG_GENERIC(MSG_TRUNC),
1024     FLAG_GENERIC(MSG_WAITALL),
1025     /* recvmsg */
1026     FLAG_GENERIC(MSG_CTRUNC),
1027     FLAG_END,
1028 };
1029 
1030 UNUSED static struct flags statx_flags[] = {
1031 #ifdef AT_EMPTY_PATH
1032     FLAG_GENERIC(AT_EMPTY_PATH),
1033 #endif
1034 #ifdef AT_NO_AUTOMOUNT
1035     FLAG_GENERIC(AT_NO_AUTOMOUNT),
1036 #endif
1037 #ifdef AT_SYMLINK_NOFOLLOW
1038     FLAG_GENERIC(AT_SYMLINK_NOFOLLOW),
1039 #endif
1040 #ifdef AT_STATX_SYNC_AS_STAT
1041     FLAG_GENERIC(AT_STATX_SYNC_AS_STAT),
1042 #endif
1043 #ifdef AT_STATX_FORCE_SYNC
1044     FLAG_GENERIC(AT_STATX_FORCE_SYNC),
1045 #endif
1046 #ifdef AT_STATX_DONT_SYNC
1047     FLAG_GENERIC(AT_STATX_DONT_SYNC),
1048 #endif
1049     FLAG_END,
1050 };
1051 
1052 UNUSED static struct flags statx_mask[] = {
1053 /* This must come first, because it includes everything.  */
1054 #ifdef STATX_ALL
1055     FLAG_GENERIC(STATX_ALL),
1056 #endif
1057 /* This must come second; it includes everything except STATX_BTIME.  */
1058 #ifdef STATX_BASIC_STATS
1059     FLAG_GENERIC(STATX_BASIC_STATS),
1060 #endif
1061 #ifdef STATX_TYPE
1062     FLAG_GENERIC(STATX_TYPE),
1063 #endif
1064 #ifdef STATX_MODE
1065     FLAG_GENERIC(STATX_MODE),
1066 #endif
1067 #ifdef STATX_NLINK
1068     FLAG_GENERIC(STATX_NLINK),
1069 #endif
1070 #ifdef STATX_UID
1071     FLAG_GENERIC(STATX_UID),
1072 #endif
1073 #ifdef STATX_GID
1074     FLAG_GENERIC(STATX_GID),
1075 #endif
1076 #ifdef STATX_ATIME
1077     FLAG_GENERIC(STATX_ATIME),
1078 #endif
1079 #ifdef STATX_MTIME
1080     FLAG_GENERIC(STATX_MTIME),
1081 #endif
1082 #ifdef STATX_CTIME
1083     FLAG_GENERIC(STATX_CTIME),
1084 #endif
1085 #ifdef STATX_INO
1086     FLAG_GENERIC(STATX_INO),
1087 #endif
1088 #ifdef STATX_SIZE
1089     FLAG_GENERIC(STATX_SIZE),
1090 #endif
1091 #ifdef STATX_BLOCKS
1092     FLAG_GENERIC(STATX_BLOCKS),
1093 #endif
1094 #ifdef STATX_BTIME
1095     FLAG_GENERIC(STATX_BTIME),
1096 #endif
1097     FLAG_END,
1098 };
1099 
1100 /*
1101  * print_xxx utility functions.  These are used to print syscall
1102  * parameters in certain format.  All of these have parameter
1103  * named 'last'.  This parameter is used to add comma to output
1104  * when last == 0.
1105  */
1106 
1107 static const char *
1108 get_comma(int last)
1109 {
1110     return ((last) ? "" : ",");
1111 }
1112 
1113 static void
1114 print_flags(const struct flags *f, abi_long flags, int last)
1115 {
1116     const char *sep = "";
1117     int n;
1118 
1119     if ((flags == 0) && (f->f_value == 0)) {
1120         qemu_log("%s%s", f->f_string, get_comma(last));
1121         return;
1122     }
1123     for (n = 0; f->f_string != NULL; f++) {
1124         if ((f->f_value != 0) && ((flags & f->f_value) == f->f_value)) {
1125             qemu_log("%s%s", sep, f->f_string);
1126             flags &= ~f->f_value;
1127             sep = "|";
1128             n++;
1129         }
1130     }
1131 
1132     if (n > 0) {
1133         /* print rest of the flags as numeric */
1134         if (flags != 0) {
1135             qemu_log("%s%#x%s", sep, (unsigned int)flags, get_comma(last));
1136         } else {
1137             qemu_log("%s", get_comma(last));
1138         }
1139     } else {
1140         /* no string version of flags found, print them in hex then */
1141         qemu_log("%#x%s", (unsigned int)flags, get_comma(last));
1142     }
1143 }
1144 
1145 static void
1146 print_at_dirfd(abi_long dirfd, int last)
1147 {
1148 #ifdef AT_FDCWD
1149     if (dirfd == AT_FDCWD) {
1150         qemu_log("AT_FDCWD%s", get_comma(last));
1151         return;
1152     }
1153 #endif
1154     qemu_log("%d%s", (int)dirfd, get_comma(last));
1155 }
1156 
1157 static void
1158 print_file_mode(abi_long mode, int last)
1159 {
1160     const char *sep = "";
1161     const struct flags *m;
1162 
1163     for (m = &mode_flags[0]; m->f_string != NULL; m++) {
1164         if ((m->f_value & mode) == m->f_value) {
1165             qemu_log("%s%s", m->f_string, sep);
1166             sep = "|";
1167             mode &= ~m->f_value;
1168             break;
1169         }
1170     }
1171 
1172     mode &= ~S_IFMT;
1173     /* print rest of the mode as octal */
1174     if (mode != 0)
1175         qemu_log("%s%#o", sep, (unsigned int)mode);
1176 
1177     qemu_log("%s", get_comma(last));
1178 }
1179 
1180 static void
1181 print_open_flags(abi_long flags, int last)
1182 {
1183     print_flags(open_access_flags, flags & TARGET_O_ACCMODE, 1);
1184     flags &= ~TARGET_O_ACCMODE;
1185     if (flags == 0) {
1186         qemu_log("%s", get_comma(last));
1187         return;
1188     }
1189     qemu_log("|");
1190     print_flags(open_flags, flags, last);
1191 }
1192 
1193 static void
1194 print_syscall_prologue(const struct syscallname *sc)
1195 {
1196     qemu_log("%s(", sc->name);
1197 }
1198 
1199 /*ARGSUSED*/
1200 static void
1201 print_syscall_epilogue(const struct syscallname *sc)
1202 {
1203     (void)sc;
1204     qemu_log(")");
1205 }
1206 
1207 static void
1208 print_string(abi_long addr, int last)
1209 {
1210     char *s;
1211 
1212     if ((s = lock_user_string(addr)) != NULL) {
1213         qemu_log("\"%s\"%s", s, get_comma(last));
1214         unlock_user(s, addr, 0);
1215     } else {
1216         /* can't get string out of it, so print it as pointer */
1217         print_pointer(addr, last);
1218     }
1219 }
1220 
1221 #define MAX_PRINT_BUF 40
1222 static void
1223 print_buf(abi_long addr, abi_long len, int last)
1224 {
1225     uint8_t *s;
1226     int i;
1227 
1228     s = lock_user(VERIFY_READ, addr, len, 1);
1229     if (s) {
1230         qemu_log("\"");
1231         for (i = 0; i < MAX_PRINT_BUF && i < len; i++) {
1232             if (isprint(s[i])) {
1233                 qemu_log("%c", s[i]);
1234             } else {
1235                 qemu_log("\\%o", s[i]);
1236             }
1237         }
1238         qemu_log("\"");
1239         if (i != len) {
1240             qemu_log("...");
1241         }
1242         if (!last) {
1243             qemu_log(",");
1244         }
1245         unlock_user(s, addr, 0);
1246     } else {
1247         print_pointer(addr, last);
1248     }
1249 }
1250 
1251 /*
1252  * Prints out raw parameter using given format.  Caller needs
1253  * to do byte swapping if needed.
1254  */
1255 static void
1256 print_raw_param(const char *fmt, abi_long param, int last)
1257 {
1258     char format[64];
1259 
1260     (void) snprintf(format, sizeof (format), "%s%s", fmt, get_comma(last));
1261     qemu_log(format, param);
1262 }
1263 
1264 static void
1265 print_pointer(abi_long p, int last)
1266 {
1267     if (p == 0)
1268         qemu_log("NULL%s", get_comma(last));
1269     else
1270         qemu_log("0x" TARGET_ABI_FMT_lx "%s", p, get_comma(last));
1271 }
1272 
1273 /*
1274  * Reads 32-bit (int) number from guest address space from
1275  * address 'addr' and prints it.
1276  */
1277 static void
1278 print_number(abi_long addr, int last)
1279 {
1280     if (addr == 0) {
1281         qemu_log("NULL%s", get_comma(last));
1282     } else {
1283         int num;
1284 
1285         get_user_s32(num, addr);
1286         qemu_log("[%d]%s", num, get_comma(last));
1287     }
1288 }
1289 
1290 static void
1291 print_timeval(abi_ulong tv_addr, int last)
1292 {
1293     if( tv_addr ) {
1294         struct target_timeval *tv;
1295 
1296         tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1);
1297         if (!tv) {
1298             print_pointer(tv_addr, last);
1299             return;
1300         }
1301         qemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s",
1302             tswapal(tv->tv_sec), tswapal(tv->tv_usec), get_comma(last));
1303         unlock_user(tv, tv_addr, 0);
1304     } else
1305         qemu_log("NULL%s", get_comma(last));
1306 }
1307 
1308 static void
1309 print_timezone(abi_ulong tz_addr, int last)
1310 {
1311     if (tz_addr) {
1312         struct target_timezone *tz;
1313 
1314         tz = lock_user(VERIFY_READ, tz_addr, sizeof(*tz), 1);
1315         if (!tz) {
1316             print_pointer(tz_addr, last);
1317             return;
1318         }
1319         qemu_log("{%d,%d}%s", tswap32(tz->tz_minuteswest),
1320                  tswap32(tz->tz_dsttime), get_comma(last));
1321         unlock_user(tz, tz_addr, 0);
1322     } else {
1323         qemu_log("NULL%s", get_comma(last));
1324     }
1325 }
1326 
1327 #undef UNUSED
1328 
1329 #ifdef TARGET_NR_accept
1330 static void
1331 print_accept(const struct syscallname *name,
1332     abi_long arg0, abi_long arg1, abi_long arg2,
1333     abi_long arg3, abi_long arg4, abi_long arg5)
1334 {
1335     print_syscall_prologue(name);
1336     print_raw_param("%d", arg0, 0);
1337     print_pointer(arg1, 0);
1338     print_number(arg2, 1);
1339     print_syscall_epilogue(name);
1340 }
1341 #endif
1342 
1343 #ifdef TARGET_NR_access
1344 static void
1345 print_access(const struct syscallname *name,
1346     abi_long arg0, abi_long arg1, abi_long arg2,
1347     abi_long arg3, abi_long arg4, abi_long arg5)
1348 {
1349     print_syscall_prologue(name);
1350     print_string(arg0, 0);
1351     print_flags(access_flags, arg1, 1);
1352     print_syscall_epilogue(name);
1353 }
1354 #endif
1355 
1356 #ifdef TARGET_NR_brk
1357 static void
1358 print_brk(const struct syscallname *name,
1359     abi_long arg0, abi_long arg1, abi_long arg2,
1360     abi_long arg3, abi_long arg4, abi_long arg5)
1361 {
1362     print_syscall_prologue(name);
1363     print_pointer(arg0, 1);
1364     print_syscall_epilogue(name);
1365 }
1366 #endif
1367 
1368 #ifdef TARGET_NR_chdir
1369 static void
1370 print_chdir(const struct syscallname *name,
1371     abi_long arg0, abi_long arg1, abi_long arg2,
1372     abi_long arg3, abi_long arg4, abi_long arg5)
1373 {
1374     print_syscall_prologue(name);
1375     print_string(arg0, 1);
1376     print_syscall_epilogue(name);
1377 }
1378 #endif
1379 
1380 #ifdef TARGET_NR_chroot
1381 static void
1382 print_chroot(const struct syscallname *name,
1383     abi_long arg0, abi_long arg1, abi_long arg2,
1384     abi_long arg3, abi_long arg4, abi_long arg5)
1385 {
1386     print_syscall_prologue(name);
1387     print_string(arg0, 1);
1388     print_syscall_epilogue(name);
1389 }
1390 #endif
1391 
1392 #ifdef TARGET_NR_chmod
1393 static void
1394 print_chmod(const struct syscallname *name,
1395     abi_long arg0, abi_long arg1, abi_long arg2,
1396     abi_long arg3, abi_long arg4, abi_long arg5)
1397 {
1398     print_syscall_prologue(name);
1399     print_string(arg0, 0);
1400     print_file_mode(arg1, 1);
1401     print_syscall_epilogue(name);
1402 }
1403 #endif
1404 
1405 #ifdef TARGET_NR_clock_adjtime
1406 static void
1407 print_clock_adjtime(const struct syscallname *name,
1408     abi_long arg0, abi_long arg1, abi_long arg2,
1409     abi_long arg3, abi_long arg4, abi_long arg5)
1410 {
1411     print_syscall_prologue(name);
1412     print_clockid(arg0, 0);
1413     print_pointer(arg1, 1);
1414     print_syscall_epilogue(name);
1415 }
1416 #endif
1417 
1418 #ifdef TARGET_NR_clone
1419 static void do_print_clone(unsigned int flags, abi_ulong newsp,
1420                            abi_ulong parent_tidptr, target_ulong newtls,
1421                            abi_ulong child_tidptr)
1422 {
1423     print_flags(clone_flags, flags, 0);
1424     print_raw_param("child_stack=0x" TARGET_ABI_FMT_lx, newsp, 0);
1425     print_raw_param("parent_tidptr=0x" TARGET_ABI_FMT_lx, parent_tidptr, 0);
1426     print_raw_param("tls=0x" TARGET_ABI_FMT_lx, newtls, 0);
1427     print_raw_param("child_tidptr=0x" TARGET_ABI_FMT_lx, child_tidptr, 1);
1428 }
1429 
1430 static void
1431 print_clone(const struct syscallname *name,
1432     abi_long arg1, abi_long arg2, abi_long arg3,
1433     abi_long arg4, abi_long arg5, abi_long arg6)
1434 {
1435     print_syscall_prologue(name);
1436 #if defined(TARGET_MICROBLAZE)
1437     do_print_clone(arg1, arg2, arg4, arg6, arg5);
1438 #elif defined(TARGET_CLONE_BACKWARDS)
1439     do_print_clone(arg1, arg2, arg3, arg4, arg5);
1440 #elif defined(TARGET_CLONE_BACKWARDS2)
1441     do_print_clone(arg2, arg1, arg3, arg5, arg4);
1442 #else
1443     do_print_clone(arg1, arg2, arg3, arg5, arg4);
1444 #endif
1445     print_syscall_epilogue(name);
1446 }
1447 #endif
1448 
1449 #ifdef TARGET_NR_creat
1450 static void
1451 print_creat(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_string(arg0, 0);
1457     print_file_mode(arg1, 1);
1458     print_syscall_epilogue(name);
1459 }
1460 #endif
1461 
1462 #ifdef TARGET_NR_execv
1463 static void
1464 print_execv(const struct syscallname *name,
1465     abi_long arg0, abi_long arg1, abi_long arg2,
1466     abi_long arg3, abi_long arg4, abi_long arg5)
1467 {
1468     print_syscall_prologue(name);
1469     print_string(arg0, 0);
1470     print_raw_param("0x" TARGET_ABI_FMT_lx, arg1, 1);
1471     print_syscall_epilogue(name);
1472 }
1473 #endif
1474 
1475 #ifdef TARGET_NR_faccessat
1476 static void
1477 print_faccessat(const struct syscallname *name,
1478     abi_long arg0, abi_long arg1, abi_long arg2,
1479     abi_long arg3, abi_long arg4, abi_long arg5)
1480 {
1481     print_syscall_prologue(name);
1482     print_at_dirfd(arg0, 0);
1483     print_string(arg1, 0);
1484     print_flags(access_flags, arg2, 0);
1485     print_flags(at_file_flags, arg3, 1);
1486     print_syscall_epilogue(name);
1487 }
1488 #endif
1489 
1490 #ifdef TARGET_NR_fchmodat
1491 static void
1492 print_fchmodat(const struct syscallname *name,
1493     abi_long arg0, abi_long arg1, abi_long arg2,
1494     abi_long arg3, abi_long arg4, abi_long arg5)
1495 {
1496     print_syscall_prologue(name);
1497     print_at_dirfd(arg0, 0);
1498     print_string(arg1, 0);
1499     print_file_mode(arg2, 0);
1500     print_flags(at_file_flags, arg3, 1);
1501     print_syscall_epilogue(name);
1502 }
1503 #endif
1504 
1505 #ifdef TARGET_NR_fchownat
1506 static void
1507 print_fchownat(const struct syscallname *name,
1508     abi_long arg0, abi_long arg1, abi_long arg2,
1509     abi_long arg3, abi_long arg4, abi_long arg5)
1510 {
1511     print_syscall_prologue(name);
1512     print_at_dirfd(arg0, 0);
1513     print_string(arg1, 0);
1514     print_raw_param("%d", arg2, 0);
1515     print_raw_param("%d", arg3, 0);
1516     print_flags(at_file_flags, arg4, 1);
1517     print_syscall_epilogue(name);
1518 }
1519 #endif
1520 
1521 #if defined(TARGET_NR_fcntl) || defined(TARGET_NR_fcntl64)
1522 static void
1523 print_fcntl(const struct syscallname *name,
1524     abi_long arg0, abi_long arg1, abi_long arg2,
1525     abi_long arg3, abi_long arg4, abi_long arg5)
1526 {
1527     print_syscall_prologue(name);
1528     print_raw_param("%d", arg0, 0);
1529     switch(arg1) {
1530     case TARGET_F_DUPFD:
1531         qemu_log("F_DUPFD,");
1532         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1533         break;
1534     case TARGET_F_GETFD:
1535         qemu_log("F_GETFD");
1536         break;
1537     case TARGET_F_SETFD:
1538         qemu_log("F_SETFD,");
1539         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1540         break;
1541     case TARGET_F_GETFL:
1542         qemu_log("F_GETFL");
1543         break;
1544     case TARGET_F_SETFL:
1545         qemu_log("F_SETFL,");
1546         print_open_flags(arg2, 1);
1547         break;
1548     case TARGET_F_GETLK:
1549         qemu_log("F_GETLK,");
1550         print_pointer(arg2, 1);
1551         break;
1552     case TARGET_F_SETLK:
1553         qemu_log("F_SETLK,");
1554         print_pointer(arg2, 1);
1555         break;
1556     case TARGET_F_SETLKW:
1557         qemu_log("F_SETLKW,");
1558         print_pointer(arg2, 1);
1559         break;
1560     case TARGET_F_GETOWN:
1561         qemu_log("F_GETOWN");
1562         break;
1563     case TARGET_F_SETOWN:
1564         qemu_log("F_SETOWN,");
1565         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1566         break;
1567     case TARGET_F_GETSIG:
1568         qemu_log("F_GETSIG");
1569         break;
1570     case TARGET_F_SETSIG:
1571         qemu_log("F_SETSIG,");
1572         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1573         break;
1574 #if TARGET_ABI_BITS == 32
1575     case TARGET_F_GETLK64:
1576         qemu_log("F_GETLK64,");
1577         print_pointer(arg2, 1);
1578         break;
1579     case TARGET_F_SETLK64:
1580         qemu_log("F_SETLK64,");
1581         print_pointer(arg2, 1);
1582         break;
1583     case TARGET_F_SETLKW64:
1584         qemu_log("F_SETLKW64,");
1585         print_pointer(arg2, 1);
1586         break;
1587 #endif
1588     case TARGET_F_SETLEASE:
1589         qemu_log("F_SETLEASE,");
1590         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1591         break;
1592     case TARGET_F_GETLEASE:
1593         qemu_log("F_GETLEASE");
1594         break;
1595     case TARGET_F_SETPIPE_SZ:
1596         qemu_log("F_SETPIPE_SZ,");
1597         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1598         break;
1599     case TARGET_F_GETPIPE_SZ:
1600         qemu_log("F_GETPIPE_SZ");
1601         break;
1602     case TARGET_F_DUPFD_CLOEXEC:
1603         qemu_log("F_DUPFD_CLOEXEC,");
1604         print_raw_param(TARGET_ABI_FMT_ld, arg2, 1);
1605         break;
1606     case TARGET_F_NOTIFY:
1607         qemu_log("F_NOTIFY,");
1608         print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
1609         break;
1610     default:
1611         print_raw_param(TARGET_ABI_FMT_ld, arg1, 0);
1612         print_pointer(arg2, 1);
1613         break;
1614     }
1615     print_syscall_epilogue(name);
1616 }
1617 #define print_fcntl64   print_fcntl
1618 #endif
1619 
1620 
1621 #ifdef TARGET_NR_futimesat
1622 static void
1623 print_futimesat(const struct syscallname *name,
1624     abi_long arg0, abi_long arg1, abi_long arg2,
1625     abi_long arg3, abi_long arg4, abi_long arg5)
1626 {
1627     print_syscall_prologue(name);
1628     print_at_dirfd(arg0, 0);
1629     print_string(arg1, 0);
1630     print_timeval(arg2, 0);
1631     print_timeval(arg2 + sizeof (struct target_timeval), 1);
1632     print_syscall_epilogue(name);
1633 }
1634 #endif
1635 
1636 #ifdef TARGET_NR_settimeofday
1637 static void
1638 print_settimeofday(const struct syscallname *name,
1639                 abi_long arg0, abi_long arg1, abi_long arg2,
1640                 abi_long arg3, abi_long arg4, abi_long arg5)
1641 {
1642     print_syscall_prologue(name);
1643     print_timeval(arg0, 0);
1644     print_timezone(arg1, 1);
1645     print_syscall_epilogue(name);
1646 }
1647 #endif
1648 
1649 #ifdef TARGET_NR_link
1650 static void
1651 print_link(const struct syscallname *name,
1652     abi_long arg0, abi_long arg1, abi_long arg2,
1653     abi_long arg3, abi_long arg4, abi_long arg5)
1654 {
1655     print_syscall_prologue(name);
1656     print_string(arg0, 0);
1657     print_string(arg1, 1);
1658     print_syscall_epilogue(name);
1659 }
1660 #endif
1661 
1662 #ifdef TARGET_NR_linkat
1663 static void
1664 print_linkat(const struct syscallname *name,
1665     abi_long arg0, abi_long arg1, abi_long arg2,
1666     abi_long arg3, abi_long arg4, abi_long arg5)
1667 {
1668     print_syscall_prologue(name);
1669     print_at_dirfd(arg0, 0);
1670     print_string(arg1, 0);
1671     print_at_dirfd(arg2, 0);
1672     print_string(arg3, 0);
1673     print_flags(at_file_flags, arg4, 1);
1674     print_syscall_epilogue(name);
1675 }
1676 #endif
1677 
1678 #ifdef TARGET_NR__llseek
1679 static void
1680 print__llseek(const struct syscallname *name,
1681     abi_long arg0, abi_long arg1, abi_long arg2,
1682     abi_long arg3, abi_long arg4, abi_long arg5)
1683 {
1684     const char *whence = "UNKNOWN";
1685     print_syscall_prologue(name);
1686     print_raw_param("%d", arg0, 0);
1687     print_raw_param("%ld", arg1, 0);
1688     print_raw_param("%ld", arg2, 0);
1689     print_pointer(arg3, 0);
1690     switch(arg4) {
1691     case SEEK_SET: whence = "SEEK_SET"; break;
1692     case SEEK_CUR: whence = "SEEK_CUR"; break;
1693     case SEEK_END: whence = "SEEK_END"; break;
1694     }
1695     qemu_log("%s", whence);
1696     print_syscall_epilogue(name);
1697 }
1698 #endif
1699 
1700 #if defined(TARGET_NR_socket)
1701 static void
1702 print_socket(const struct syscallname *name,
1703              abi_long arg0, abi_long arg1, abi_long arg2,
1704              abi_long arg3, abi_long arg4, abi_long arg5)
1705 {
1706     abi_ulong domain = arg0, type = arg1, protocol = arg2;
1707 
1708     print_syscall_prologue(name);
1709     print_socket_domain(domain);
1710     qemu_log(",");
1711     print_socket_type(type);
1712     qemu_log(",");
1713     if (domain == AF_PACKET ||
1714         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
1715         protocol = tswap16(protocol);
1716     }
1717     print_socket_protocol(domain, type, protocol);
1718     print_syscall_epilogue(name);
1719 }
1720 
1721 #endif
1722 
1723 #if defined(TARGET_NR_socketcall) || defined(TARGET_NR_bind)
1724 
1725 static void print_sockfd(abi_long sockfd, int last)
1726 {
1727     print_raw_param(TARGET_ABI_FMT_ld, sockfd, last);
1728 }
1729 
1730 #endif
1731 
1732 #if defined(TARGET_NR_socketcall)
1733 
1734 #define get_user_ualx(x, gaddr, idx) \
1735         get_user_ual(x, (gaddr) + (idx) * sizeof(abi_long))
1736 
1737 static void do_print_socket(const char *name, abi_long arg1)
1738 {
1739     abi_ulong domain, type, protocol;
1740 
1741     get_user_ualx(domain, arg1, 0);
1742     get_user_ualx(type, arg1, 1);
1743     get_user_ualx(protocol, arg1, 2);
1744     qemu_log("%s(", name);
1745     print_socket_domain(domain);
1746     qemu_log(",");
1747     print_socket_type(type);
1748     qemu_log(",");
1749     if (domain == AF_PACKET ||
1750         (domain == AF_INET && type == TARGET_SOCK_PACKET)) {
1751         protocol = tswap16(protocol);
1752     }
1753     print_socket_protocol(domain, type, protocol);
1754     qemu_log(")");
1755 }
1756 
1757 static void do_print_sockaddr(const char *name, abi_long arg1)
1758 {
1759     abi_ulong sockfd, addr, addrlen;
1760 
1761     get_user_ualx(sockfd, arg1, 0);
1762     get_user_ualx(addr, arg1, 1);
1763     get_user_ualx(addrlen, arg1, 2);
1764 
1765     qemu_log("%s(", name);
1766     print_sockfd(sockfd, 0);
1767     print_sockaddr(addr, addrlen, 0);
1768     qemu_log(")");
1769 }
1770 
1771 static void do_print_listen(const char *name, abi_long arg1)
1772 {
1773     abi_ulong sockfd, backlog;
1774 
1775     get_user_ualx(sockfd, arg1, 0);
1776     get_user_ualx(backlog, arg1, 1);
1777 
1778     qemu_log("%s(", name);
1779     print_sockfd(sockfd, 0);
1780     print_raw_param(TARGET_ABI_FMT_ld, backlog, 1);
1781     qemu_log(")");
1782 }
1783 
1784 static void do_print_socketpair(const char *name, abi_long arg1)
1785 {
1786     abi_ulong domain, type, protocol, tab;
1787 
1788     get_user_ualx(domain, arg1, 0);
1789     get_user_ualx(type, arg1, 1);
1790     get_user_ualx(protocol, arg1, 2);
1791     get_user_ualx(tab, arg1, 3);
1792 
1793     qemu_log("%s(", name);
1794     print_socket_domain(domain);
1795     qemu_log(",");
1796     print_socket_type(type);
1797     qemu_log(",");
1798     print_socket_protocol(domain, type, protocol);
1799     qemu_log(",");
1800     print_raw_param(TARGET_ABI_FMT_lx, tab, 1);
1801     qemu_log(")");
1802 }
1803 
1804 static void do_print_sendrecv(const char *name, abi_long arg1)
1805 {
1806     abi_ulong sockfd, msg, len, flags;
1807 
1808     get_user_ualx(sockfd, arg1, 0);
1809     get_user_ualx(msg, arg1, 1);
1810     get_user_ualx(len, arg1, 2);
1811     get_user_ualx(flags, arg1, 3);
1812 
1813     qemu_log("%s(", name);
1814     print_sockfd(sockfd, 0);
1815     print_buf(msg, len, 0);
1816     print_raw_param(TARGET_ABI_FMT_ld, len, 0);
1817     print_flags(msg_flags, flags, 1);
1818     qemu_log(")");
1819 }
1820 
1821 static void do_print_msgaddr(const char *name, abi_long arg1)
1822 {
1823     abi_ulong sockfd, msg, len, flags, addr, addrlen;
1824 
1825     get_user_ualx(sockfd, arg1, 0);
1826     get_user_ualx(msg, arg1, 1);
1827     get_user_ualx(len, arg1, 2);
1828     get_user_ualx(flags, arg1, 3);
1829     get_user_ualx(addr, arg1, 4);
1830     get_user_ualx(addrlen, arg1, 5);
1831 
1832     qemu_log("%s(", name);
1833     print_sockfd(sockfd, 0);
1834     print_buf(msg, len, 0);
1835     print_raw_param(TARGET_ABI_FMT_ld, len, 0);
1836     print_flags(msg_flags, flags, 0);
1837     print_sockaddr(addr, addrlen, 0);
1838     qemu_log(")");
1839 }
1840 
1841 static void do_print_shutdown(const char *name, abi_long arg1)
1842 {
1843     abi_ulong sockfd, how;
1844 
1845     get_user_ualx(sockfd, arg1, 0);
1846     get_user_ualx(how, arg1, 1);
1847 
1848     qemu_log("shutdown(");
1849     print_sockfd(sockfd, 0);
1850     switch (how) {
1851     case SHUT_RD:
1852         qemu_log("SHUT_RD");
1853         break;
1854     case SHUT_WR:
1855         qemu_log("SHUT_WR");
1856         break;
1857     case SHUT_RDWR:
1858         qemu_log("SHUT_RDWR");
1859         break;
1860     default:
1861         print_raw_param(TARGET_ABI_FMT_ld, how, 1);
1862         break;
1863     }
1864     qemu_log(")");
1865 }
1866 
1867 static void do_print_msg(const char *name, abi_long arg1)
1868 {
1869     abi_ulong sockfd, msg, flags;
1870 
1871     get_user_ualx(sockfd, arg1, 0);
1872     get_user_ualx(msg, arg1, 1);
1873     get_user_ualx(flags, arg1, 2);
1874 
1875     qemu_log("%s(", name);
1876     print_sockfd(sockfd, 0);
1877     print_pointer(msg, 0);
1878     print_flags(msg_flags, flags, 1);
1879     qemu_log(")");
1880 }
1881 
1882 static void do_print_sockopt(const char *name, abi_long arg1)
1883 {
1884     abi_ulong sockfd, level, optname, optval, optlen;
1885 
1886     get_user_ualx(sockfd, arg1, 0);
1887     get_user_ualx(level, arg1, 1);
1888     get_user_ualx(optname, arg1, 2);
1889     get_user_ualx(optval, arg1, 3);
1890     get_user_ualx(optlen, arg1, 4);
1891 
1892     qemu_log("%s(", name);
1893     print_sockfd(sockfd, 0);
1894     switch (level) {
1895     case SOL_TCP:
1896         qemu_log("SOL_TCP,");
1897         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1898         print_pointer(optval, 0);
1899         break;
1900     case SOL_IP:
1901         qemu_log("SOL_IP,");
1902         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1903         print_pointer(optval, 0);
1904         break;
1905     case SOL_RAW:
1906         qemu_log("SOL_RAW,");
1907         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
1908         print_pointer(optval, 0);
1909         break;
1910     case TARGET_SOL_SOCKET:
1911         qemu_log("SOL_SOCKET,");
1912         switch (optname) {
1913         case TARGET_SO_DEBUG:
1914             qemu_log("SO_DEBUG,");
1915 print_optint:
1916             print_number(optval, 0);
1917             break;
1918         case TARGET_SO_REUSEADDR:
1919             qemu_log("SO_REUSEADDR,");
1920             goto print_optint;
1921         case TARGET_SO_REUSEPORT:
1922             qemu_log("SO_REUSEPORT,");
1923             goto print_optint;
1924         case TARGET_SO_TYPE:
1925             qemu_log("SO_TYPE,");
1926             goto print_optint;
1927         case TARGET_SO_ERROR:
1928             qemu_log("SO_ERROR,");
1929             goto print_optint;
1930         case TARGET_SO_DONTROUTE:
1931             qemu_log("SO_DONTROUTE,");
1932             goto print_optint;
1933         case TARGET_SO_BROADCAST:
1934             qemu_log("SO_BROADCAST,");
1935             goto print_optint;
1936         case TARGET_SO_SNDBUF:
1937             qemu_log("SO_SNDBUF,");
1938             goto print_optint;
1939         case TARGET_SO_RCVBUF:
1940             qemu_log("SO_RCVBUF,");
1941             goto print_optint;
1942         case TARGET_SO_KEEPALIVE:
1943             qemu_log("SO_KEEPALIVE,");
1944             goto print_optint;
1945         case TARGET_SO_OOBINLINE:
1946             qemu_log("SO_OOBINLINE,");
1947             goto print_optint;
1948         case TARGET_SO_NO_CHECK:
1949             qemu_log("SO_NO_CHECK,");
1950             goto print_optint;
1951         case TARGET_SO_PRIORITY:
1952             qemu_log("SO_PRIORITY,");
1953             goto print_optint;
1954         case TARGET_SO_BSDCOMPAT:
1955             qemu_log("SO_BSDCOMPAT,");
1956             goto print_optint;
1957         case TARGET_SO_PASSCRED:
1958             qemu_log("SO_PASSCRED,");
1959             goto print_optint;
1960         case TARGET_SO_TIMESTAMP:
1961             qemu_log("SO_TIMESTAMP,");
1962             goto print_optint;
1963         case TARGET_SO_RCVLOWAT:
1964             qemu_log("SO_RCVLOWAT,");
1965             goto print_optint;
1966         case TARGET_SO_RCVTIMEO:
1967             qemu_log("SO_RCVTIMEO,");
1968             print_timeval(optval, 0);
1969             break;
1970         case TARGET_SO_SNDTIMEO:
1971             qemu_log("SO_SNDTIMEO,");
1972             print_timeval(optval, 0);
1973             break;
1974         case TARGET_SO_ATTACH_FILTER: {
1975             struct target_sock_fprog *fprog;
1976 
1977             qemu_log("SO_ATTACH_FILTER,");
1978 
1979             if (lock_user_struct(VERIFY_READ, fprog, optval,  0)) {
1980                 struct target_sock_filter *filter;
1981                 qemu_log("{");
1982                 if (lock_user_struct(VERIFY_READ, filter,
1983                                      tswapal(fprog->filter),  0)) {
1984                     int i;
1985                     for (i = 0; i < tswap16(fprog->len) - 1; i++) {
1986                         qemu_log("[%d]{0x%x,%d,%d,0x%x},",
1987                                  i, tswap16(filter[i].code),
1988                                  filter[i].jt, filter[i].jf,
1989                                  tswap32(filter[i].k));
1990                     }
1991                     qemu_log("[%d]{0x%x,%d,%d,0x%x}",
1992                              i, tswap16(filter[i].code),
1993                              filter[i].jt, filter[i].jf,
1994                              tswap32(filter[i].k));
1995                 } else {
1996                     qemu_log(TARGET_ABI_FMT_lx, tswapal(fprog->filter));
1997                 }
1998                 qemu_log(",%d},", tswap16(fprog->len));
1999                 unlock_user(fprog, optval, 0);
2000             } else {
2001                 print_pointer(optval, 0);
2002             }
2003             break;
2004         }
2005         default:
2006             print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
2007             print_pointer(optval, 0);
2008             break;
2009         }
2010         break;
2011     default:
2012         print_raw_param(TARGET_ABI_FMT_ld, level, 0);
2013         print_raw_param(TARGET_ABI_FMT_ld, optname, 0);
2014         print_pointer(optval, 0);
2015         break;
2016     }
2017     print_raw_param(TARGET_ABI_FMT_ld, optlen, 1);
2018     qemu_log(")");
2019 }
2020 
2021 #define PRINT_SOCKOP(name, func) \
2022     [TARGET_SYS_##name] = { #name, func }
2023 
2024 static struct {
2025     const char *name;
2026     void (*print)(const char *, abi_long);
2027 } scall[] = {
2028     PRINT_SOCKOP(SOCKET, do_print_socket),
2029     PRINT_SOCKOP(BIND, do_print_sockaddr),
2030     PRINT_SOCKOP(CONNECT, do_print_sockaddr),
2031     PRINT_SOCKOP(LISTEN, do_print_listen),
2032     PRINT_SOCKOP(ACCEPT, do_print_sockaddr),
2033     PRINT_SOCKOP(GETSOCKNAME, do_print_sockaddr),
2034     PRINT_SOCKOP(GETPEERNAME, do_print_sockaddr),
2035     PRINT_SOCKOP(SOCKETPAIR, do_print_socketpair),
2036     PRINT_SOCKOP(SEND, do_print_sendrecv),
2037     PRINT_SOCKOP(RECV, do_print_sendrecv),
2038     PRINT_SOCKOP(SENDTO, do_print_msgaddr),
2039     PRINT_SOCKOP(RECVFROM, do_print_msgaddr),
2040     PRINT_SOCKOP(SHUTDOWN, do_print_shutdown),
2041     PRINT_SOCKOP(SETSOCKOPT, do_print_sockopt),
2042     PRINT_SOCKOP(GETSOCKOPT, do_print_sockopt),
2043     PRINT_SOCKOP(SENDMSG, do_print_msg),
2044     PRINT_SOCKOP(RECVMSG, do_print_msg),
2045     PRINT_SOCKOP(ACCEPT4, NULL),
2046     PRINT_SOCKOP(RECVMMSG, NULL),
2047     PRINT_SOCKOP(SENDMMSG, NULL),
2048 };
2049 
2050 static void
2051 print_socketcall(const struct syscallname *name,
2052                  abi_long arg0, abi_long arg1, abi_long arg2,
2053                  abi_long arg3, abi_long arg4, abi_long arg5)
2054 {
2055     if (arg0 >= 0 && arg0 < ARRAY_SIZE(scall) && scall[arg0].print) {
2056         scall[arg0].print(scall[arg0].name, arg1);
2057         return;
2058     }
2059     print_syscall_prologue(name);
2060     print_raw_param(TARGET_ABI_FMT_ld, arg0, 0);
2061     print_raw_param(TARGET_ABI_FMT_ld, arg1, 0);
2062     print_raw_param(TARGET_ABI_FMT_ld, arg2, 0);
2063     print_raw_param(TARGET_ABI_FMT_ld, arg3, 0);
2064     print_raw_param(TARGET_ABI_FMT_ld, arg4, 0);
2065     print_raw_param(TARGET_ABI_FMT_ld, arg5, 0);
2066     print_syscall_epilogue(name);
2067 }
2068 #endif
2069 
2070 #if defined(TARGET_NR_bind)
2071 static void
2072 print_bind(const struct syscallname *name,
2073            abi_long arg0, abi_long arg1, abi_long arg2,
2074            abi_long arg3, abi_long arg4, abi_long arg5)
2075 {
2076     print_syscall_prologue(name);
2077     print_sockfd(arg0, 0);
2078     print_sockaddr(arg1, arg2, 1);
2079     print_syscall_epilogue(name);
2080 }
2081 #endif
2082 
2083 #if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) || \
2084     defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64)
2085 static void
2086 print_stat(const struct syscallname *name,
2087     abi_long arg0, abi_long arg1, abi_long arg2,
2088     abi_long arg3, abi_long arg4, abi_long arg5)
2089 {
2090     print_syscall_prologue(name);
2091     print_string(arg0, 0);
2092     print_pointer(arg1, 1);
2093     print_syscall_epilogue(name);
2094 }
2095 #define print_lstat     print_stat
2096 #define print_stat64	print_stat
2097 #define print_lstat64   print_stat
2098 #endif
2099 
2100 #if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
2101 static void
2102 print_fstat(const struct syscallname *name,
2103     abi_long arg0, abi_long arg1, abi_long arg2,
2104     abi_long arg3, abi_long arg4, abi_long arg5)
2105 {
2106     print_syscall_prologue(name);
2107     print_raw_param("%d", arg0, 0);
2108     print_pointer(arg1, 1);
2109     print_syscall_epilogue(name);
2110 }
2111 #define print_fstat64     print_fstat
2112 #endif
2113 
2114 #ifdef TARGET_NR_mkdir
2115 static void
2116 print_mkdir(const struct syscallname *name,
2117     abi_long arg0, abi_long arg1, abi_long arg2,
2118     abi_long arg3, abi_long arg4, abi_long arg5)
2119 {
2120     print_syscall_prologue(name);
2121     print_string(arg0, 0);
2122     print_file_mode(arg1, 1);
2123     print_syscall_epilogue(name);
2124 }
2125 #endif
2126 
2127 #ifdef TARGET_NR_mkdirat
2128 static void
2129 print_mkdirat(const struct syscallname *name,
2130     abi_long arg0, abi_long arg1, abi_long arg2,
2131     abi_long arg3, abi_long arg4, abi_long arg5)
2132 {
2133     print_syscall_prologue(name);
2134     print_at_dirfd(arg0, 0);
2135     print_string(arg1, 0);
2136     print_file_mode(arg2, 1);
2137     print_syscall_epilogue(name);
2138 }
2139 #endif
2140 
2141 #ifdef TARGET_NR_rmdir
2142 static void
2143 print_rmdir(const struct syscallname *name,
2144     abi_long arg0, abi_long arg1, abi_long arg2,
2145     abi_long arg3, abi_long arg4, abi_long arg5)
2146 {
2147     print_syscall_prologue(name);
2148     print_string(arg0, 0);
2149     print_syscall_epilogue(name);
2150 }
2151 #endif
2152 
2153 #ifdef TARGET_NR_rt_sigaction
2154 static void
2155 print_rt_sigaction(const struct syscallname *name,
2156     abi_long arg0, abi_long arg1, abi_long arg2,
2157     abi_long arg3, abi_long arg4, abi_long arg5)
2158 {
2159     print_syscall_prologue(name);
2160     print_signal(arg0, 0);
2161     print_pointer(arg1, 0);
2162     print_pointer(arg2, 1);
2163     print_syscall_epilogue(name);
2164 }
2165 #endif
2166 
2167 #ifdef TARGET_NR_rt_sigprocmask
2168 static void
2169 print_rt_sigprocmask(const struct syscallname *name,
2170     abi_long arg0, abi_long arg1, abi_long arg2,
2171     abi_long arg3, abi_long arg4, abi_long arg5)
2172 {
2173     const char *how = "UNKNOWN";
2174     print_syscall_prologue(name);
2175     switch(arg0) {
2176     case TARGET_SIG_BLOCK: how = "SIG_BLOCK"; break;
2177     case TARGET_SIG_UNBLOCK: how = "SIG_UNBLOCK"; break;
2178     case TARGET_SIG_SETMASK: how = "SIG_SETMASK"; break;
2179     }
2180     qemu_log("%s,", how);
2181     print_pointer(arg1, 0);
2182     print_pointer(arg2, 1);
2183     print_syscall_epilogue(name);
2184 }
2185 #endif
2186 
2187 #ifdef TARGET_NR_rt_sigqueueinfo
2188 static void
2189 print_rt_sigqueueinfo(const struct syscallname *name,
2190     abi_long arg0, abi_long arg1, abi_long arg2,
2191     abi_long arg3, abi_long arg4, abi_long arg5)
2192 {
2193     void *p;
2194     target_siginfo_t uinfo;
2195 
2196     print_syscall_prologue(name);
2197     print_raw_param("%d", arg0, 0);
2198     print_signal(arg1, 0);
2199     p = lock_user(VERIFY_READ, arg2, sizeof(target_siginfo_t), 1);
2200     if (p) {
2201         get_target_siginfo(&uinfo, p);
2202         print_siginfo(&uinfo);
2203 
2204         unlock_user(p, arg2, 0);
2205     } else {
2206         print_pointer(arg2, 1);
2207     }
2208     print_syscall_epilogue(name);
2209 }
2210 #endif
2211 
2212 #ifdef TARGET_NR_rt_tgsigqueueinfo
2213 static void
2214 print_rt_tgsigqueueinfo(const struct syscallname *name,
2215     abi_long arg0, abi_long arg1, abi_long arg2,
2216     abi_long arg3, abi_long arg4, abi_long arg5)
2217 {
2218     void *p;
2219     target_siginfo_t uinfo;
2220 
2221     print_syscall_prologue(name);
2222     print_raw_param("%d", arg0, 0);
2223     print_raw_param("%d", arg1, 0);
2224     print_signal(arg2, 0);
2225     p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
2226     if (p) {
2227         get_target_siginfo(&uinfo, p);
2228         print_siginfo(&uinfo);
2229 
2230         unlock_user(p, arg3, 0);
2231     } else {
2232         print_pointer(arg3, 1);
2233     }
2234     print_syscall_epilogue(name);
2235 }
2236 #endif
2237 
2238 #ifdef TARGET_NR_syslog
2239 static void
2240 print_syslog_action(abi_ulong arg, int last)
2241 {
2242     const char *type;
2243 
2244     switch (arg) {
2245         case TARGET_SYSLOG_ACTION_CLOSE: {
2246             type = "SYSLOG_ACTION_CLOSE";
2247             break;
2248         }
2249         case TARGET_SYSLOG_ACTION_OPEN: {
2250             type = "SYSLOG_ACTION_OPEN";
2251             break;
2252         }
2253         case TARGET_SYSLOG_ACTION_READ: {
2254             type = "SYSLOG_ACTION_READ";
2255             break;
2256         }
2257         case TARGET_SYSLOG_ACTION_READ_ALL: {
2258             type = "SYSLOG_ACTION_READ_ALL";
2259             break;
2260         }
2261         case TARGET_SYSLOG_ACTION_READ_CLEAR: {
2262             type = "SYSLOG_ACTION_READ_CLEAR";
2263             break;
2264         }
2265         case TARGET_SYSLOG_ACTION_CLEAR: {
2266             type = "SYSLOG_ACTION_CLEAR";
2267             break;
2268         }
2269         case TARGET_SYSLOG_ACTION_CONSOLE_OFF: {
2270             type = "SYSLOG_ACTION_CONSOLE_OFF";
2271             break;
2272         }
2273         case TARGET_SYSLOG_ACTION_CONSOLE_ON: {
2274             type = "SYSLOG_ACTION_CONSOLE_ON";
2275             break;
2276         }
2277         case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL: {
2278             type = "SYSLOG_ACTION_CONSOLE_LEVEL";
2279             break;
2280         }
2281         case TARGET_SYSLOG_ACTION_SIZE_UNREAD: {
2282             type = "SYSLOG_ACTION_SIZE_UNREAD";
2283             break;
2284         }
2285         case TARGET_SYSLOG_ACTION_SIZE_BUFFER: {
2286             type = "SYSLOG_ACTION_SIZE_BUFFER";
2287             break;
2288         }
2289         default: {
2290             print_raw_param("%ld", arg, last);
2291             return;
2292         }
2293     }
2294     qemu_log("%s%s", type, get_comma(last));
2295 }
2296 
2297 static void
2298 print_syslog(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_syslog_action(arg0, 0);
2304     print_pointer(arg1, 0);
2305     print_raw_param("%d", arg2, 1);
2306     print_syscall_epilogue(name);
2307 }
2308 #endif
2309 
2310 #ifdef TARGET_NR_mknod
2311 static void
2312 print_mknod(const struct syscallname *name,
2313     abi_long arg0, abi_long arg1, abi_long arg2,
2314     abi_long arg3, abi_long arg4, abi_long arg5)
2315 {
2316     int hasdev = (arg1 & (S_IFCHR|S_IFBLK));
2317 
2318     print_syscall_prologue(name);
2319     print_string(arg0, 0);
2320     print_file_mode(arg1, (hasdev == 0));
2321     if (hasdev) {
2322         print_raw_param("makedev(%d", major(arg2), 0);
2323         print_raw_param("%d)", minor(arg2), 1);
2324     }
2325     print_syscall_epilogue(name);
2326 }
2327 #endif
2328 
2329 #ifdef TARGET_NR_mknodat
2330 static void
2331 print_mknodat(const struct syscallname *name,
2332     abi_long arg0, abi_long arg1, abi_long arg2,
2333     abi_long arg3, abi_long arg4, abi_long arg5)
2334 {
2335     int hasdev = (arg2 & (S_IFCHR|S_IFBLK));
2336 
2337     print_syscall_prologue(name);
2338     print_at_dirfd(arg0, 0);
2339     print_string(arg1, 0);
2340     print_file_mode(arg2, (hasdev == 0));
2341     if (hasdev) {
2342         print_raw_param("makedev(%d", major(arg3), 0);
2343         print_raw_param("%d)", minor(arg3), 1);
2344     }
2345     print_syscall_epilogue(name);
2346 }
2347 #endif
2348 
2349 #ifdef TARGET_NR_mq_open
2350 static void
2351 print_mq_open(const struct syscallname *name,
2352     abi_long arg0, abi_long arg1, abi_long arg2,
2353     abi_long arg3, abi_long arg4, abi_long arg5)
2354 {
2355     int is_creat = (arg1 & TARGET_O_CREAT);
2356 
2357     print_syscall_prologue(name);
2358     print_string(arg0, 0);
2359     print_open_flags(arg1, (is_creat == 0));
2360     if (is_creat) {
2361         print_file_mode(arg2, 0);
2362         print_pointer(arg3, 1);
2363     }
2364     print_syscall_epilogue(name);
2365 }
2366 #endif
2367 
2368 #ifdef TARGET_NR_open
2369 static void
2370 print_open(const struct syscallname *name,
2371     abi_long arg0, abi_long arg1, abi_long arg2,
2372     abi_long arg3, abi_long arg4, abi_long arg5)
2373 {
2374     int is_creat = (arg1 & TARGET_O_CREAT);
2375 
2376     print_syscall_prologue(name);
2377     print_string(arg0, 0);
2378     print_open_flags(arg1, (is_creat == 0));
2379     if (is_creat)
2380         print_file_mode(arg2, 1);
2381     print_syscall_epilogue(name);
2382 }
2383 #endif
2384 
2385 #ifdef TARGET_NR_openat
2386 static void
2387 print_openat(const struct syscallname *name,
2388     abi_long arg0, abi_long arg1, abi_long arg2,
2389     abi_long arg3, abi_long arg4, abi_long arg5)
2390 {
2391     int is_creat = (arg2 & TARGET_O_CREAT);
2392 
2393     print_syscall_prologue(name);
2394     print_at_dirfd(arg0, 0);
2395     print_string(arg1, 0);
2396     print_open_flags(arg2, (is_creat == 0));
2397     if (is_creat)
2398         print_file_mode(arg3, 1);
2399     print_syscall_epilogue(name);
2400 }
2401 #endif
2402 
2403 #ifdef TARGET_NR_mq_unlink
2404 static void
2405 print_mq_unlink(const struct syscallname *name,
2406     abi_long arg0, abi_long arg1, abi_long arg2,
2407     abi_long arg3, abi_long arg4, abi_long arg5)
2408 {
2409     print_syscall_prologue(name);
2410     print_string(arg0, 1);
2411     print_syscall_epilogue(name);
2412 }
2413 #endif
2414 
2415 #if defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)
2416 static void
2417 print_fstatat64(const struct syscallname *name,
2418     abi_long arg0, abi_long arg1, abi_long arg2,
2419     abi_long arg3, abi_long arg4, abi_long arg5)
2420 {
2421     print_syscall_prologue(name);
2422     print_at_dirfd(arg0, 0);
2423     print_string(arg1, 0);
2424     print_pointer(arg2, 0);
2425     print_flags(at_file_flags, arg3, 1);
2426     print_syscall_epilogue(name);
2427 }
2428 #define print_newfstatat    print_fstatat64
2429 #endif
2430 
2431 #ifdef TARGET_NR_readlink
2432 static void
2433 print_readlink(const struct syscallname *name,
2434     abi_long arg0, abi_long arg1, abi_long arg2,
2435     abi_long arg3, abi_long arg4, abi_long arg5)
2436 {
2437     print_syscall_prologue(name);
2438     print_string(arg0, 0);
2439     print_pointer(arg1, 0);
2440     print_raw_param("%u", arg2, 1);
2441     print_syscall_epilogue(name);
2442 }
2443 #endif
2444 
2445 #ifdef TARGET_NR_readlinkat
2446 static void
2447 print_readlinkat(const struct syscallname *name,
2448     abi_long arg0, abi_long arg1, abi_long arg2,
2449     abi_long arg3, abi_long arg4, abi_long arg5)
2450 {
2451     print_syscall_prologue(name);
2452     print_at_dirfd(arg0, 0);
2453     print_string(arg1, 0);
2454     print_pointer(arg2, 0);
2455     print_raw_param("%u", arg3, 1);
2456     print_syscall_epilogue(name);
2457 }
2458 #endif
2459 
2460 #ifdef TARGET_NR_rename
2461 static void
2462 print_rename(const struct syscallname *name,
2463     abi_long arg0, abi_long arg1, abi_long arg2,
2464     abi_long arg3, abi_long arg4, abi_long arg5)
2465 {
2466     print_syscall_prologue(name);
2467     print_string(arg0, 0);
2468     print_string(arg1, 1);
2469     print_syscall_epilogue(name);
2470 }
2471 #endif
2472 
2473 #ifdef TARGET_NR_renameat
2474 static void
2475 print_renameat(const struct syscallname *name,
2476     abi_long arg0, abi_long arg1, abi_long arg2,
2477     abi_long arg3, abi_long arg4, abi_long arg5)
2478 {
2479     print_syscall_prologue(name);
2480     print_at_dirfd(arg0, 0);
2481     print_string(arg1, 0);
2482     print_at_dirfd(arg2, 0);
2483     print_string(arg3, 1);
2484     print_syscall_epilogue(name);
2485 }
2486 #endif
2487 
2488 #ifdef TARGET_NR_statfs
2489 static void
2490 print_statfs(const struct syscallname *name,
2491     abi_long arg0, abi_long arg1, abi_long arg2,
2492     abi_long arg3, abi_long arg4, abi_long arg5)
2493 {
2494     print_syscall_prologue(name);
2495     print_string(arg0, 0);
2496     print_pointer(arg1, 1);
2497     print_syscall_epilogue(name);
2498 }
2499 #endif
2500 
2501 #ifdef TARGET_NR_statfs64
2502 static void
2503 print_statfs64(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_symlink
2515 static void
2516 print_symlink(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_string(arg1, 1);
2523     print_syscall_epilogue(name);
2524 }
2525 #endif
2526 
2527 #ifdef TARGET_NR_symlinkat
2528 static void
2529 print_symlinkat(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_string(arg0, 0);
2535     print_at_dirfd(arg1, 0);
2536     print_string(arg2, 1);
2537     print_syscall_epilogue(name);
2538 }
2539 #endif
2540 
2541 #ifdef TARGET_NR_mount
2542 static void
2543 print_mount(const struct syscallname *name,
2544     abi_long arg0, abi_long arg1, abi_long arg2,
2545     abi_long arg3, abi_long arg4, abi_long arg5)
2546 {
2547     print_syscall_prologue(name);
2548     print_string(arg0, 0);
2549     print_string(arg1, 0);
2550     print_string(arg2, 0);
2551     print_flags(mount_flags, arg3, 0);
2552     print_pointer(arg4, 1);
2553     print_syscall_epilogue(name);
2554 }
2555 #endif
2556 
2557 #ifdef TARGET_NR_umount
2558 static void
2559 print_umount(const struct syscallname *name,
2560     abi_long arg0, abi_long arg1, abi_long arg2,
2561     abi_long arg3, abi_long arg4, abi_long arg5)
2562 {
2563     print_syscall_prologue(name);
2564     print_string(arg0, 1);
2565     print_syscall_epilogue(name);
2566 }
2567 #endif
2568 
2569 #ifdef TARGET_NR_umount2
2570 static void
2571 print_umount2(const struct syscallname *name,
2572     abi_long arg0, abi_long arg1, abi_long arg2,
2573     abi_long arg3, abi_long arg4, abi_long arg5)
2574 {
2575     print_syscall_prologue(name);
2576     print_string(arg0, 0);
2577     print_flags(umount2_flags, arg1, 1);
2578     print_syscall_epilogue(name);
2579 }
2580 #endif
2581 
2582 #ifdef TARGET_NR_unlink
2583 static void
2584 print_unlink(const struct syscallname *name,
2585     abi_long arg0, abi_long arg1, abi_long arg2,
2586     abi_long arg3, abi_long arg4, abi_long arg5)
2587 {
2588     print_syscall_prologue(name);
2589     print_string(arg0, 1);
2590     print_syscall_epilogue(name);
2591 }
2592 #endif
2593 
2594 #ifdef TARGET_NR_unlinkat
2595 static void
2596 print_unlinkat(const struct syscallname *name,
2597     abi_long arg0, abi_long arg1, abi_long arg2,
2598     abi_long arg3, abi_long arg4, abi_long arg5)
2599 {
2600     print_syscall_prologue(name);
2601     print_at_dirfd(arg0, 0);
2602     print_string(arg1, 0);
2603     print_flags(unlinkat_flags, arg2, 1);
2604     print_syscall_epilogue(name);
2605 }
2606 #endif
2607 
2608 #ifdef TARGET_NR_utime
2609 static void
2610 print_utime(const struct syscallname *name,
2611     abi_long arg0, abi_long arg1, abi_long arg2,
2612     abi_long arg3, abi_long arg4, abi_long arg5)
2613 {
2614     print_syscall_prologue(name);
2615     print_string(arg0, 0);
2616     print_pointer(arg1, 1);
2617     print_syscall_epilogue(name);
2618 }
2619 #endif
2620 
2621 #ifdef TARGET_NR_utimes
2622 static void
2623 print_utimes(const struct syscallname *name,
2624     abi_long arg0, abi_long arg1, abi_long arg2,
2625     abi_long arg3, abi_long arg4, abi_long arg5)
2626 {
2627     print_syscall_prologue(name);
2628     print_string(arg0, 0);
2629     print_pointer(arg1, 1);
2630     print_syscall_epilogue(name);
2631 }
2632 #endif
2633 
2634 #ifdef TARGET_NR_utimensat
2635 static void
2636 print_utimensat(const struct syscallname *name,
2637     abi_long arg0, abi_long arg1, abi_long arg2,
2638     abi_long arg3, abi_long arg4, abi_long arg5)
2639 {
2640     print_syscall_prologue(name);
2641     print_at_dirfd(arg0, 0);
2642     print_string(arg1, 0);
2643     print_pointer(arg2, 0);
2644     print_flags(at_file_flags, arg3, 1);
2645     print_syscall_epilogue(name);
2646 }
2647 #endif
2648 
2649 #if defined(TARGET_NR_mmap) || defined(TARGET_NR_mmap2)
2650 static void
2651 print_mmap(const struct syscallname *name,
2652     abi_long arg0, abi_long arg1, abi_long arg2,
2653     abi_long arg3, abi_long arg4, abi_long arg5)
2654 {
2655     print_syscall_prologue(name);
2656     print_pointer(arg0, 0);
2657     print_raw_param("%d", arg1, 0);
2658     print_flags(mmap_prot_flags, arg2, 0);
2659     print_flags(mmap_flags, arg3, 0);
2660     print_raw_param("%d", arg4, 0);
2661     print_raw_param("%#x", arg5, 1);
2662     print_syscall_epilogue(name);
2663 }
2664 #define print_mmap2     print_mmap
2665 #endif
2666 
2667 #ifdef TARGET_NR_mprotect
2668 static void
2669 print_mprotect(const struct syscallname *name,
2670     abi_long arg0, abi_long arg1, abi_long arg2,
2671     abi_long arg3, abi_long arg4, abi_long arg5)
2672 {
2673     print_syscall_prologue(name);
2674     print_pointer(arg0, 0);
2675     print_raw_param("%d", arg1, 0);
2676     print_flags(mmap_prot_flags, arg2, 1);
2677     print_syscall_epilogue(name);
2678 }
2679 #endif
2680 
2681 #ifdef TARGET_NR_munmap
2682 static void
2683 print_munmap(const struct syscallname *name,
2684     abi_long arg0, abi_long arg1, abi_long arg2,
2685     abi_long arg3, abi_long arg4, abi_long arg5)
2686 {
2687     print_syscall_prologue(name);
2688     print_pointer(arg0, 0);
2689     print_raw_param("%d", arg1, 1);
2690     print_syscall_epilogue(name);
2691 }
2692 #endif
2693 
2694 #ifdef TARGET_NR_futex
2695 static void print_futex_op(abi_long tflag, int last)
2696 {
2697 #define print_op(val) \
2698 if( cmd == val ) { \
2699     qemu_log(#val); \
2700     return; \
2701 }
2702 
2703     int cmd = (int)tflag;
2704 #ifdef FUTEX_PRIVATE_FLAG
2705     if (cmd & FUTEX_PRIVATE_FLAG) {
2706         qemu_log("FUTEX_PRIVATE_FLAG|");
2707         cmd &= ~FUTEX_PRIVATE_FLAG;
2708     }
2709 #endif
2710 #ifdef FUTEX_CLOCK_REALTIME
2711     if (cmd & FUTEX_CLOCK_REALTIME) {
2712         qemu_log("FUTEX_CLOCK_REALTIME|");
2713         cmd &= ~FUTEX_CLOCK_REALTIME;
2714     }
2715 #endif
2716     print_op(FUTEX_WAIT)
2717     print_op(FUTEX_WAKE)
2718     print_op(FUTEX_FD)
2719     print_op(FUTEX_REQUEUE)
2720     print_op(FUTEX_CMP_REQUEUE)
2721     print_op(FUTEX_WAKE_OP)
2722     print_op(FUTEX_LOCK_PI)
2723     print_op(FUTEX_UNLOCK_PI)
2724     print_op(FUTEX_TRYLOCK_PI)
2725 #ifdef FUTEX_WAIT_BITSET
2726     print_op(FUTEX_WAIT_BITSET)
2727 #endif
2728 #ifdef FUTEX_WAKE_BITSET
2729     print_op(FUTEX_WAKE_BITSET)
2730 #endif
2731     /* unknown values */
2732     qemu_log("%d", cmd);
2733 }
2734 
2735 static void
2736 print_futex(const struct syscallname *name,
2737     abi_long arg0, abi_long arg1, abi_long arg2,
2738     abi_long arg3, abi_long arg4, abi_long arg5)
2739 {
2740     print_syscall_prologue(name);
2741     print_pointer(arg0, 0);
2742     print_futex_op(arg1, 0);
2743     print_raw_param(",%d", arg2, 0);
2744     print_pointer(arg3, 0); /* struct timespec */
2745     print_pointer(arg4, 0);
2746     print_raw_param("%d", arg4, 1);
2747     print_syscall_epilogue(name);
2748 }
2749 #endif
2750 
2751 #ifdef TARGET_NR_kill
2752 static void
2753 print_kill(const struct syscallname *name,
2754     abi_long arg0, abi_long arg1, abi_long arg2,
2755     abi_long arg3, abi_long arg4, abi_long arg5)
2756 {
2757     print_syscall_prologue(name);
2758     print_raw_param("%d", arg0, 0);
2759     print_signal(arg1, 1);
2760     print_syscall_epilogue(name);
2761 }
2762 #endif
2763 
2764 #ifdef TARGET_NR_tkill
2765 static void
2766 print_tkill(const struct syscallname *name,
2767     abi_long arg0, abi_long arg1, abi_long arg2,
2768     abi_long arg3, abi_long arg4, abi_long arg5)
2769 {
2770     print_syscall_prologue(name);
2771     print_raw_param("%d", arg0, 0);
2772     print_signal(arg1, 1);
2773     print_syscall_epilogue(name);
2774 }
2775 #endif
2776 
2777 #ifdef TARGET_NR_tgkill
2778 static void
2779 print_tgkill(const struct syscallname *name,
2780     abi_long arg0, abi_long arg1, abi_long arg2,
2781     abi_long arg3, abi_long arg4, abi_long arg5)
2782 {
2783     print_syscall_prologue(name);
2784     print_raw_param("%d", arg0, 0);
2785     print_raw_param("%d", arg1, 0);
2786     print_signal(arg2, 1);
2787     print_syscall_epilogue(name);
2788 }
2789 #endif
2790 
2791 #ifdef TARGET_NR_statx
2792 static void
2793 print_statx(const struct syscallname *name,
2794             abi_long arg0, abi_long arg1, abi_long arg2,
2795             abi_long arg3, abi_long arg4, abi_long arg5)
2796 {
2797     print_syscall_prologue(name);
2798     print_at_dirfd(arg0, 0);
2799     print_string(arg1, 0);
2800     print_flags(statx_flags, arg2, 0);
2801     print_flags(statx_mask, arg3, 0);
2802     print_pointer(arg4, 1);
2803     print_syscall_epilogue(name);
2804 }
2805 #endif
2806 
2807 /*
2808  * An array of all of the syscalls we know about
2809  */
2810 
2811 static const struct syscallname scnames[] = {
2812 #include "strace.list"
2813 };
2814 
2815 static int nsyscalls = ARRAY_SIZE(scnames);
2816 
2817 /*
2818  * The public interface to this module.
2819  */
2820 void
2821 print_syscall(int num,
2822               abi_long arg1, abi_long arg2, abi_long arg3,
2823               abi_long arg4, abi_long arg5, abi_long arg6)
2824 {
2825     int i;
2826     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 ")";
2827 
2828     qemu_log("%d ", getpid());
2829 
2830     for(i=0;i<nsyscalls;i++)
2831         if( scnames[i].nr == num ) {
2832             if( scnames[i].call != NULL ) {
2833                 scnames[i].call(
2834                     &scnames[i], arg1, arg2, arg3, arg4, arg5, arg6);
2835             } else {
2836                 /* XXX: this format system is broken because it uses
2837                    host types and host pointers for strings */
2838                 if( scnames[i].format != NULL )
2839                     format = scnames[i].format;
2840                 qemu_log(format,
2841                          scnames[i].name, arg1, arg2, arg3, arg4, arg5, arg6);
2842             }
2843             return;
2844         }
2845     qemu_log("Unknown syscall %d\n", num);
2846 }
2847 
2848 
2849 void
2850 print_syscall_ret(int num, abi_long ret)
2851 {
2852     int i;
2853     const char *errstr = NULL;
2854 
2855     for(i=0;i<nsyscalls;i++)
2856         if( scnames[i].nr == num ) {
2857             if( scnames[i].result != NULL ) {
2858                 scnames[i].result(&scnames[i], ret);
2859             } else {
2860                 if (ret < 0) {
2861                     errstr = target_strerror(-ret);
2862                 }
2863                 if (errstr) {
2864                     qemu_log(" = -1 errno=" TARGET_ABI_FMT_ld " (%s)\n",
2865                              -ret, errstr);
2866                 } else {
2867                     qemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
2868                 }
2869             }
2870             break;
2871         }
2872 }
2873 
2874 void print_taken_signal(int target_signum, const target_siginfo_t *tinfo)
2875 {
2876     /* Print the strace output for a signal being taken:
2877      * --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0} ---
2878      */
2879     qemu_log("--- ");
2880     print_signal(target_signum, 1);
2881     qemu_log(" ");
2882     print_siginfo(tinfo);
2883     qemu_log(" ---\n");
2884 }
2885