2 * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
3 * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
6 * Copyright (c) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
7 * Linux for s390 port by D.J. Barrow
8 * <barrow_dj@mail.yahoo.com,djbarrow@de.ibm.com>
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
44 #include <sys/ucontext.h>
49 #ifndef PTRACE_PEEKUSR
50 # define PTRACE_PEEKUSR PTRACE_PEEKUSER
52 #ifndef PTRACE_POKEUSR
53 # define PTRACE_POKEUSR PTRACE_POKEUSER
55 #elif defined(HAVE_LINUX_PTRACE_H)
57 # ifdef HAVE_STRUCT_IA64_FPREG
58 # define ia64_fpreg XXX_ia64_fpreg
60 # ifdef HAVE_STRUCT_PT_ALL_USER_REGS
61 # define pt_all_user_regs XXX_pt_all_user_regs
63 #include <linux/ptrace.h>
65 # undef pt_all_user_regs
72 # include <asm/ptrace_offsets.h>
75 #if defined (LINUX) && defined (SPARC64)
76 # undef PTRACE_GETREGS
77 # define PTRACE_GETREGS PTRACE_GETREGS64
78 # undef PTRACE_SETREGS
79 # define PTRACE_SETREGS PTRACE_SETREGS64
80 #endif /* LINUX && SPARC64 */
82 #if defined (SPARC) || defined (SPARC64) || defined (MIPS)
84 struct pt_regs si_regs;
87 #elif defined HAVE_ASM_SIGCONTEXT_H
88 #if !defined(IA64) && !defined(X86_64)
89 #include <asm/sigcontext.h>
90 #endif /* !IA64 && !X86_64 */
91 #else /* !HAVE_ASM_SIGCONTEXT_H */
92 #if defined I386 && !defined HAVE_STRUCT_SIGCONTEXT_STRUCT
93 struct sigcontext_struct {
94 unsigned short gs, __gsh;
95 unsigned short fs, __fsh;
96 unsigned short es, __esh;
97 unsigned short ds, __dsh;
106 unsigned long trapno;
109 unsigned short cs, __csh;
110 unsigned long eflags;
111 unsigned long esp_at_signal;
112 unsigned short ss, __ssh;
114 unsigned long oldmask;
118 #if defined M68K && !defined HAVE_STRUCT_SIGCONTEXT
121 unsigned long sc_mask;
122 unsigned long sc_usp;
127 unsigned short sc_sr;
129 unsigned short sc_formatvec;
133 #endif /* !HAVE_ASM_SIGCONTEXT_H */
143 const char *const signalent0[] = {
144 #include "signalent.h"
146 const int nsignals0 = sizeof signalent0 / sizeof signalent0[0];
148 #if SUPPORTED_PERSONALITIES >= 2
149 const char *const signalent1[] = {
150 #include "signalent1.h"
152 const int nsignals1 = sizeof signalent1 / sizeof signalent1[0];
153 #endif /* SUPPORTED_PERSONALITIES >= 2 */
155 #if SUPPORTED_PERSONALITIES >= 3
156 const char *const signalent2[] = {
157 #include "signalent2.h"
159 const int nsignals2 = sizeof signalent2 / sizeof signalent2[0];
160 #endif /* SUPPORTED_PERSONALITIES >= 3 */
162 const char *const *signalent;
165 #if defined(SUNOS4) || defined(FREEBSD)
167 static const struct xlat sigvec_flags[] = {
168 { SV_ONSTACK, "SV_ONSTACK" },
169 { SV_INTERRUPT, "SV_INTERRUPT" },
170 { SV_RESETHAND, "SV_RESETHAND" },
171 { SA_NOCLDSTOP, "SA_NOCLDSTOP" },
175 #endif /* SUNOS4 || FREEBSD */
177 #ifdef HAVE_SIGACTION
179 #if defined LINUX && (defined I386 || defined X86_64)
180 /* The libc headers do not define this constant since it should only be
181 used by the implementation. So wwe define it here. */
183 # define SA_RESTORER 0x04000000
187 static const struct xlat sigact_flags[] = {
189 { SA_RESTORER, "SA_RESTORER" },
192 { SA_STACK, "SA_STACK" },
195 { SA_RESTART, "SA_RESTART" },
198 { SA_INTERRUPT, "SA_INTERRUPT" },
201 { SA_NODEFER, "SA_NODEFER" },
203 #if defined SA_NOMASK && SA_NODEFER != SA_NOMASK
204 { SA_NOMASK, "SA_NOMASK" },
207 { SA_RESETHAND, "SA_RESETHAND" },
209 #if defined SA_ONESHOT && SA_ONESHOT != SA_RESETHAND
210 { SA_ONESHOT, "SA_ONESHOT" },
213 { SA_SIGINFO, "SA_SIGINFO" },
216 { SA_RESETHAND, "SA_RESETHAND" },
219 { SA_ONSTACK, "SA_ONSTACK" },
222 { SA_NODEFER, "SA_NODEFER" },
225 { SA_NOCLDSTOP, "SA_NOCLDSTOP" },
228 { SA_NOCLDWAIT, "SA_NOCLDWAIT" },
231 { _SA_BSDCALL, "_SA_BSDCALL" },
234 { SA_NOPTRACE, "SA_NOPTRACE" },
239 static const struct xlat sigprocmaskcmds[] = {
240 { SIG_BLOCK, "SIG_BLOCK" },
241 { SIG_UNBLOCK, "SIG_UNBLOCK" },
242 { SIG_SETMASK, "SIG_SETMASK" },
244 { SIG_SETMASK32,"SIG_SETMASK32" },
249 #endif /* HAVE_SIGACTION */
251 /* Anonymous realtime signals. */
252 /* Under glibc 2.1, SIGRTMIN et al are functions, but __SIGRTMIN is a
253 constant. This is what we want. Otherwise, just use SIGRTMIN. */
256 #define __SIGRTMIN SIGRTMIN
257 #define __SIGRTMAX SIGRTMAX /* likewise */
266 if (sig >= 0 && sig < nsignals) {
267 return signalent[sig];
269 } else if (sig >= __SIGRTMIN && sig <= __SIGRTMAX) {
270 sprintf(buf, "SIGRT_%ld", (long)(sig - __SIGRTMIN));
272 #endif /* SIGRTMIN */
274 sprintf(buf, "%d", sig);
291 copy_sigset_len(tcp, addr, s, len)
297 if (len > sizeof(*s))
300 if (umoven(tcp, addr, len, (char *)s) < 0)
306 /* Original sigset is unsigned long */
307 #define copy_sigset(tcp, addr, s) copy_sigset_len(tcp, addr, s, sizeof(long))
309 #define copy_sigset(tcp, addr, s) copy_sigset_len(tcp, addr, s, sizeof(sigset_t))
313 sprintsigmask(const char *str, sigset_t *mask, int rt)
314 /* set might include realtime sigs */
320 static char outstr[8 * sizeof(sigset_t) * 8];
323 s = outstr + strlen(outstr);
328 maxsigs = __SIGRTMAX; /* instead */
330 for (i = 1; i < maxsigs; i++) {
331 if (sigismember(mask, i) == 1)
334 if (nsigs >= nsignals * 2 / 3) {
336 for (i = 1; i < maxsigs; i++) {
337 switch (sigismember(mask, i)) {
349 for (i = 1; i < maxsigs; i++) {
350 if (sigismember(mask, i) == 1) {
351 /* real-time signals on solaris don't have
355 sprintf(s, format, signalent[i] + 3);
358 else if (i >= __SIGRTMIN && i <= __SIGRTMAX) {
360 sprintf(tsig, "RT_%u", i - __SIGRTMIN);
361 sprintf(s, format, tsig);
363 #endif /* SIGRTMIN */
366 sprintf(tsig, "%u", i);
367 sprintf(s, format, tsig);
379 printsigmask(mask, rt)
383 tprintf("%s", sprintsigmask("", mask, rt));
390 tprintf("%s", signame(nr));
394 print_sigset(struct tcb *tcp, long addr, int rt)
400 else if (copy_sigset(tcp, addr, &ss) < 0)
401 tprintf("%#lx", addr);
403 printsigmask(&ss, rt);
409 #define ILL_ILLOPC 1 /* illegal opcode */
410 #define ILL_ILLOPN 2 /* illegal operand */
411 #define ILL_ILLADR 3 /* illegal addressing mode */
412 #define ILL_ILLTRP 4 /* illegal trap */
413 #define ILL_PRVOPC 5 /* privileged opcode */
414 #define ILL_PRVREG 6 /* privileged register */
415 #define ILL_COPROC 7 /* coprocessor error */
416 #define ILL_BADSTK 8 /* internal stack error */
417 #define FPE_INTDIV 1 /* integer divide by zero */
418 #define FPE_INTOVF 2 /* integer overflow */
419 #define FPE_FLTDIV 3 /* floating point divide by zero */
420 #define FPE_FLTOVF 4 /* floating point overflow */
421 #define FPE_FLTUND 5 /* floating point underflow */
422 #define FPE_FLTRES 6 /* floating point inexact result */
423 #define FPE_FLTINV 7 /* floating point invalid operation */
424 #define FPE_FLTSUB 8 /* subscript out of range */
425 #define SEGV_MAPERR 1 /* address not mapped to object */
426 #define SEGV_ACCERR 2 /* invalid permissions for mapped object */
427 #define BUS_ADRALN 1 /* invalid address alignment */
428 #define BUS_ADRERR 2 /* non-existant physical address */
429 #define BUS_OBJERR 3 /* object specific hardware error */
430 #define TRAP_BRKPT 1 /* process breakpoint */
431 #define TRAP_TRACE 2 /* process trace trap */
432 #define CLD_EXITED 1 /* child has exited */
433 #define CLD_KILLED 2 /* child was killed */
434 #define CLD_DUMPED 3 /* child terminated abnormally */
435 #define CLD_TRAPPED 4 /* traced child has trapped */
436 #define CLD_STOPPED 5 /* child has stopped */
437 #define CLD_CONTINUED 6 /* stopped child has continued */
438 #define POLL_IN 1 /* data input available */
439 #define POLL_OUT 2 /* output buffers available */
440 #define POLL_MSG 3 /* input message available */
441 #define POLL_ERR 4 /* i/o error */
442 #define POLL_PRI 5 /* high priority input available */
443 #define POLL_HUP 6 /* device disconnected */
444 #define SI_USER 0 /* sent by kill, sigsend, raise */
445 #define SI_QUEUE -1 /* sent by sigqueue */
446 #define SI_TIMER -2 /* sent by timer expiration */
447 #define SI_MESGQ -3 /* sent by real time mesq state change */
448 #define SI_ASYNCIO -4 /* sent by AIO completion */
449 #define SI_SIGIO -5 /* Sent by SIGIO */
450 #define SI_TKILL -6 /* Sent by tkill */
453 #if __GLIBC_MINOR__ < 1
454 /* Type for data associated with a signal. */
461 # define __SI_MAX_SIZE 128
462 # define __SI_PAD_SIZE ((__SI_MAX_SIZE / sizeof (int)) - 3)
464 typedef struct siginfo
466 int si_signo; /* Signal number. */
467 int si_errno; /* If non-zero, an errno value associated with
468 this signal, as defined in <errno.h>. */
469 int si_code; /* Signal code. */
473 int _pad[__SI_PAD_SIZE];
478 __pid_t si_pid; /* Sending process ID. */
479 __uid_t si_uid; /* Real user ID of sending process. */
482 /* POSIX.1b timers. */
485 unsigned int _timer1;
486 unsigned int _timer2;
489 /* POSIX.1b signals. */
492 __pid_t si_pid; /* Sending process ID. */
493 __uid_t si_uid; /* Real user ID of sending process. */
494 sigval_t si_sigval; /* Signal value. */
500 __pid_t si_pid; /* Which child. */
501 int si_status; /* Exit value or signal. */
506 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS. */
509 void *si_addr; /* Faulting insn/memory ref. */
515 int si_band; /* Band event for SIGPOLL. */
521 #define si_pid _sifields._kill.si_pid
522 #define si_uid _sifields._kill.si_uid
523 #define si_status _sifields._sigchld.si_status
524 #define si_utime _sifields._sigchld.si_utime
525 #define si_stime _sifields._sigchld.si_stime
526 #define si_value _sifields._rt.si_sigval
527 #define si_int _sifields._rt.si_sigval.sival_int
528 #define si_ptr _sifields._rt.si_sigval.sival_ptr
529 #define si_addr _sifields._sigfault.si_addr
530 #define si_band _sifields._sigpoll.si_band
531 #define si_fd _sifields._sigpoll.si_fd
537 #if defined (SVR4) || defined (LINUX)
539 static const struct xlat siginfo_codes[] = {
541 { SI_NOINFO, "SI_NOINFO" },
544 { SI_USER, "SI_USER" },
547 { SI_LWP, "SI_LWP" },
550 { SI_QUEUE, "SI_QUEUE" },
553 { SI_TIMER, "SI_TIMER" },
556 { SI_ASYNCIO, "SI_ASYNCIO" },
559 { SI_MESGQ, "SI_MESGQ" },
562 { SI_SIGIO, "SI_SIGIO" },
565 { SI_TKILL, "SI_TKILL" },
570 static const struct xlat sigill_codes[] = {
571 { ILL_ILLOPC, "ILL_ILLOPC" },
572 { ILL_ILLOPN, "ILL_ILLOPN" },
573 { ILL_ILLADR, "ILL_ILLADR" },
574 { ILL_ILLTRP, "ILL_ILLTRP" },
575 { ILL_PRVOPC, "ILL_PRVOPC" },
576 { ILL_PRVREG, "ILL_PRVREG" },
577 { ILL_COPROC, "ILL_COPROC" },
578 { ILL_BADSTK, "ILL_BADSTK" },
582 static const struct xlat sigfpe_codes[] = {
583 { FPE_INTDIV, "FPE_INTDIV" },
584 { FPE_INTOVF, "FPE_INTOVF" },
585 { FPE_FLTDIV, "FPE_FLTDIV" },
586 { FPE_FLTOVF, "FPE_FLTOVF" },
587 { FPE_FLTUND, "FPE_FLTUND" },
588 { FPE_FLTRES, "FPE_FLTRES" },
589 { FPE_FLTINV, "FPE_FLTINV" },
590 { FPE_FLTSUB, "FPE_FLTSUB" },
594 static const struct xlat sigtrap_codes[] = {
595 { TRAP_BRKPT, "TRAP_BRKPT" },
596 { TRAP_TRACE, "TRAP_TRACE" },
600 static const struct xlat sigchld_codes[] = {
601 { CLD_EXITED, "CLD_EXITED" },
602 { CLD_KILLED, "CLD_KILLED" },
603 { CLD_DUMPED, "CLD_DUMPED" },
604 { CLD_TRAPPED, "CLD_TRAPPED" },
605 { CLD_STOPPED, "CLD_STOPPED" },
606 { CLD_CONTINUED,"CLD_CONTINUED" },
610 static const struct xlat sigpoll_codes[] = {
611 { POLL_IN, "POLL_IN" },
612 { POLL_OUT, "POLL_OUT" },
613 { POLL_MSG, "POLL_MSG" },
614 { POLL_ERR, "POLL_ERR" },
615 { POLL_PRI, "POLL_PRI" },
616 { POLL_HUP, "POLL_HUP" },
620 static const struct xlat sigprof_codes[] = {
622 { PROF_SIG, "PROF_SIG" },
628 static const struct xlat sigemt_codes[] = {
630 { EMT_TAGOVF, "EMT_TAGOVF" },
636 static const struct xlat sigsegv_codes[] = {
637 { SEGV_MAPERR, "SEGV_MAPERR" },
638 { SEGV_ACCERR, "SEGV_ACCERR" },
642 static const struct xlat sigbus_codes[] = {
643 { BUS_ADRALN, "BUS_ADRALN" },
644 { BUS_ADRERR, "BUS_ADRERR" },
645 { BUS_OBJERR, "BUS_OBJERR" },
650 printsiginfo(sip, verbose)
656 if (sip->si_signo == 0) {
660 tprintf("{si_signo=");
661 printsignal(sip->si_signo);
662 code = xlookup(siginfo_codes, sip->si_code);
664 switch (sip->si_signo) {
666 code = xlookup(sigtrap_codes, sip->si_code);
669 code = xlookup(sigchld_codes, sip->si_code);
672 code = xlookup(sigpoll_codes, sip->si_code);
675 code = xlookup(sigprof_codes, sip->si_code);
678 code = xlookup(sigill_codes, sip->si_code);
682 code = xlookup(sigemt_codes, sip->si_code);
686 code = xlookup(sigfpe_codes, sip->si_code);
689 code = xlookup(sigsegv_codes, sip->si_code);
692 code = xlookup(sigbus_codes, sip->si_code);
697 tprintf(", si_code=%s", code);
699 tprintf(", si_code=%#x", sip->si_code);
701 if (sip->si_code != SI_NOINFO)
705 if (sip->si_errno < 0 || sip->si_errno >= nerrnos)
706 tprintf(", si_errno=%d", sip->si_errno);
708 tprintf(", si_errno=%s",
709 errnoent[sip->si_errno]);
712 if (SI_FROMUSER(sip)) {
713 tprintf(", si_pid=%ld, si_uid=%ld",
714 sip->si_pid, sip->si_uid);
716 switch (sip->si_code) {
720 #endif /* SI_QUEUE */
724 #endif /* SI_MESGQ */
725 tprintf(", si_value=%d",
726 sip->si_value.sival_int);
729 #endif /* SI_QUEUE */
732 #endif /* SI_FROMUSER */
734 switch (sip->si_signo) {
736 tprintf(", si_pid=%ld, si_status=",
738 if (sip->si_code == CLD_EXITED)
739 tprintf("%d", sip->si_status);
741 printsignal(sip->si_status);
746 tprintf(", si_utime=%lu, si_stime=%lu",
751 case SIGILL: case SIGFPE:
752 case SIGSEGV: case SIGBUS:
753 tprintf(", si_addr=%#lx",
754 (unsigned long) sip->si_addr);
757 switch (sip->si_code) {
758 case POLL_IN: case POLL_OUT: case POLL_MSG:
759 tprintf(", si_band=%ld",
760 (long) sip->si_band);
766 tprintf(", si_pid=%lu, si_uid=%lu, ",
767 (unsigned long) sip->si_pid,
768 (unsigned long) sip->si_uid);
772 tprintf("si_value={int=%u, ptr=%#lx}",
774 (unsigned long) sip->si_ptr);
784 #endif /* SVR4 || LINUX */
789 parse_sigset_t(const char *str, sigset_t *set)
797 p = strchr(str, '\n');
799 p = strchr(str, '\0');
800 for (i = 0; p-- > str; i += 4) {
801 if (*p >= '0' && *p <= '9')
803 else if (*p >= 'a' && *p <= 'f')
804 digit = *p - 'a' + 10;
805 else if (*p >= 'A' && *p <= 'F')
806 digit = *p - 'A' + 10;
810 sigaddset(set, i + 1);
812 sigaddset(set, i + 2);
814 sigaddset(set, i + 3);
816 sigaddset(set, i + 4);
823 * Check process TCP for the disposition of signal SIG.
824 * Return 1 if the process would somehow manage to survive signal SIG,
825 * else return 0. This routine will never be called with SIGKILL.
828 sigishandled(tcp, sig)
838 sigset_t ignored, caught;
842 * Since procfs doesn't interfere with wait I think it is safe
843 * to punt on this question. If not, the information is there.
855 #if defined(SIGURG) && SIGURG != SIGIO
859 /* Gloria Gaynor says ... */
867 /* This is incredibly costly but it's worth it. */
868 /* NOTE: LinuxThreads internally uses SIGRTMIN, SIGRTMIN + 1 and
869 SIGRTMIN + 2, so we can't use the obsolete /proc/%d/stat which
870 doesn't handle real-time signals). */
871 sprintf(sname, "/proc/%d/status", tcp->pid);
872 if ((sfd = open(sname, O_RDONLY)) == -1) {
876 i = read(sfd, buf, sizeof(buf));
880 * Skip the extraneous fields. We need to skip
881 * command name has any spaces in it. So be it.
883 s = strstr(buf, "SigIgn:\t");
886 fprintf(stderr, "/proc/pid/status format error\n");
889 parse_sigset_t(s + 8, &ignored);
891 s = strstr(buf, "SigCgt:\t");
894 fprintf(stderr, "/proc/pid/status format error\n");
897 parse_sigset_t(s + 8, &caught);
900 fprintf(stderr, "sigs: %016qx %016qx (sig=%d)\n",
901 *(long long *) &ignored, *(long long *) &caught, sig);
903 if (sigismember(&ignored, sig) || sigismember(&caught, sig))
910 if (upeek(tcp, uoff(u_signal[0]) + sig*sizeof(u_signal),
911 (long *) &u_signal) < 0) {
914 if (u_signal != SIG_DFL)
921 #if defined(SUNOS4) || defined(FREEBSD)
931 printsignal(tcp->u_arg[0]);
933 addr = tcp->u_arg[1];
935 addr = tcp->u_arg[2];
939 else if (!verbose(tcp))
940 tprintf("%#lx", addr);
941 else if (umove(tcp, addr, &sv) < 0)
944 switch ((int) sv.sv_handler) {
946 tprintf("{SIG_ERR}");
949 tprintf("{SIG_DFL}");
952 if (tcp->u_arg[0] == SIGTRAP) {
953 tcp->flags |= TCB_SIGTRAPPED;
954 kill(tcp->pid, SIGSTOP);
956 tprintf("{SIG_IGN}");
959 if (tcp->u_arg[0] == SIGTRAP) {
960 tcp->flags |= TCB_SIGTRAPPED;
961 kill(tcp->pid, SIGSTOP);
966 if (tcp->u_arg[0] == SIGTRAP) {
967 tcp->flags |= TCB_SIGTRAPPED;
968 kill(tcp->pid, SIGSTOP);
970 tprintf("{%#lx, ", (unsigned long) sv.sv_handler);
971 printsigmask(&sv.sv_mask, 0);
973 printflags(sigvec_flags, sv.sv_flags, "SV_???");
986 if (entering(tcp)) { /* WTA: UD had a bug here: he forgot the braces */
988 long_to_sigset(tcp->u_arg[0], &sigm);
989 printsigmask(&sigm, 0);
1002 addr = tcp->u_arg[0];
1004 addr = tcp->u_arg[1];
1007 else if (umove(tcp, addr, &ss) < 0)
1008 tprintf("%#lx", addr);
1010 tprintf("{ss_sp %#lx ", (unsigned long) ss.ss_sp);
1011 tprintf("ss_onstack %s}", ss.ss_onstack ? "YES" : "NO");
1025 #endif /* SUNOS4 || FREEBSD */
1033 if (entering(tcp)) {
1035 long_to_sigset(tcp->u_arg[0], &sigm);
1036 printsigmask(&sigm, 0);
1038 if ((tcp->u_arg[0] & sigmask(SIGTRAP))) {
1039 /* Mark attempt to block SIGTRAP */
1040 tcp->flags |= TCB_SIGTRAPPED;
1041 /* Send unblockable signal */
1042 kill(tcp->pid, SIGSTOP);
1044 #endif /* !USE_PROCFS */
1046 else if (!syserror(tcp)) {
1048 long_to_sigset(tcp->u_rval, &sigm);
1049 tcp->auxstr = sprintsigmask("old mask ", &sigm, 0);
1051 return RVAL_HEX | RVAL_STR;
1056 #if defined(SUNOS4) || defined(FREEBSD)
1061 return sys_sigsetmask(tcp);
1063 #endif /* SUNOS4 || FREEBSD */
1067 #ifdef HAVE_SIGACTION
1070 struct old_sigaction {
1071 __sighandler_t __sa_handler;
1072 unsigned long sa_mask;
1073 unsigned long sa_flags;
1074 void (*sa_restorer)(void);
1076 #define SA_HANDLER __sa_handler
1080 #define SA_HANDLER sa_handler
1090 struct old_sigaction sa;
1092 struct sigaction sa;
1096 if (entering(tcp)) {
1097 printsignal(tcp->u_arg[0]);
1099 addr = tcp->u_arg[1];
1101 addr = tcp->u_arg[2];
1104 else if (!verbose(tcp))
1105 tprintf("%#lx", addr);
1106 else if (umove(tcp, addr, &sa) < 0)
1109 /* Architectures using function pointers, like
1110 * hppa, may need to manipulate the function pointer
1111 * to compute the result of a comparison. However,
1112 * the SA_HANDLER function pointer exists only in
1113 * the address space of the traced process, and can't
1114 * be manipulated by strace. In order to prevent the
1115 * compiler from generating code to manipulate
1116 * SA_HANDLER we cast the function pointers to long. */
1117 if ((long)sa.SA_HANDLER == (long)SIG_ERR)
1118 tprintf("{SIG_ERR, ");
1119 else if ((long)sa.SA_HANDLER == (long)SIG_DFL)
1120 tprintf("{SIG_DFL, ");
1121 else if ((long)sa.SA_HANDLER == (long)SIG_IGN) {
1123 if (tcp->u_arg[0] == SIGTRAP) {
1124 tcp->flags |= TCB_SIGTRAPPED;
1125 kill(tcp->pid, SIGSTOP);
1127 #endif /* !USE_PROCFS */
1128 tprintf("{SIG_IGN, ");
1132 if (tcp->u_arg[0] == SIGTRAP) {
1133 tcp->flags |= TCB_SIGTRAPPED;
1134 kill(tcp->pid, SIGSTOP);
1136 #endif /* !USE_PROCFS */
1137 tprintf("{%#lx, ", (long) sa.SA_HANDLER);
1139 printsigmask (&sa.sa_mask, 0);
1141 long_to_sigset(sa.sa_mask, &sigset);
1142 printsigmask(&sigset, 0);
1145 printflags(sigact_flags, sa.sa_flags, "SA_???");
1147 if (sa.sa_flags & SA_RESTORER)
1148 tprintf(", %p", sa.sa_restorer);
1157 tprintf(", %#lx", (unsigned long) sa.sa_restorer);
1166 if (entering(tcp)) {
1167 printsignal(tcp->u_arg[0]);
1169 switch (tcp->u_arg[1]) {
1170 case (long) SIG_ERR:
1173 case (long) SIG_DFL:
1176 case (long) SIG_IGN:
1178 if (tcp->u_arg[0] == SIGTRAP) {
1179 tcp->flags |= TCB_SIGTRAPPED;
1180 kill(tcp->pid, SIGSTOP);
1182 #endif /* !USE_PROCFS */
1187 if (tcp->u_arg[0] == SIGTRAP) {
1188 tcp->flags |= TCB_SIGTRAPPED;
1189 kill(tcp->pid, SIGSTOP);
1191 #endif /* !USE_PROCFS */
1192 tprintf("%#lx", tcp->u_arg[1]);
1196 else if (!syserror(tcp)) {
1197 switch (tcp->u_rval) {
1198 case (long) SIG_ERR:
1199 tcp->auxstr = "SIG_ERR"; break;
1200 case (long) SIG_DFL:
1201 tcp->auxstr = "SIG_DFL"; break;
1202 case (long) SIG_IGN:
1203 tcp->auxstr = "SIG_IGN"; break;
1207 return RVAL_HEX | RVAL_STR;
1217 if (entering(tcp)) {
1218 printsignal(tcp->u_arg[0]);
1224 #endif /* HAVE_SIGACTION */
1229 sys_sigreturn(struct tcb *tcp)
1232 struct pt_regs regs;
1233 struct sigcontext_struct sc;
1235 if (entering(tcp)) {
1238 if (ptrace(PTRACE_GETREGS, tcp->pid, NULL, (void *)®s) == -1)
1241 if (umove(tcp, regs.ARM_sp, &sc) < 0)
1245 tcp->u_arg[1] = sc.oldmask;
1248 long_to_sigset(tcp->u_arg[1], &sigm);
1249 tcp->u_rval = tcp->u_error = 0;
1250 if (tcp->u_arg[0] == 0)
1252 tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
1253 return RVAL_NONE | RVAL_STR;
1256 #elif defined(S390) || defined(S390X)
1258 struct sigcontext_struct sc;
1260 if (entering(tcp)) {
1262 if (upeek(tcp,PT_GPR15,&usp)<0)
1264 if (umove(tcp, usp+__SIGNAL_FRAMESIZE, &sc) < 0)
1267 memcpy(&tcp->u_arg[1],&sc.oldmask[0],sizeof(sigset_t));
1269 tcp->u_rval = tcp->u_error = 0;
1270 if (tcp->u_arg[0] == 0)
1272 tcp->auxstr = sprintsigmask("mask now ",(sigset_t *)&tcp->u_arg[1],0);
1273 return RVAL_NONE | RVAL_STR;
1278 struct sigcontext_struct sc;
1280 if (entering(tcp)) {
1282 if (upeek(tcp, 4*UESP, &esp) < 0)
1284 if (umove(tcp, esp, &sc) < 0)
1287 tcp->u_arg[1] = sc.oldmask;
1291 long_to_sigset(tcp->u_arg[1], &sigm);
1292 tcp->u_rval = tcp->u_error = 0;
1293 if (tcp->u_arg[0] == 0)
1295 tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
1296 return RVAL_NONE | RVAL_STR;
1300 struct sigcontext sc;
1303 if (entering(tcp)) {
1304 /* offset of sigcontext in the kernel's sigframe structure: */
1305 # define SIGFRAME_SC_OFFSET 0x90
1307 if (upeek(tcp, PT_R12, &sp) < 0)
1309 if (umove(tcp, sp + 16 + SIGFRAME_SC_OFFSET, &sc) < 0)
1312 memcpy(tcp->u_arg + 1, &sc.sc_mask, sizeof(sc.sc_mask));
1317 memcpy(&sigm, tcp->u_arg + 1, sizeof (sigm));
1318 tcp->u_rval = tcp->u_error = 0;
1319 if (tcp->u_arg[0] == 0)
1321 tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
1322 return RVAL_NONE | RVAL_STR;
1325 #elif defined(POWERPC)
1327 struct sigcontext_struct sc;
1329 if (entering(tcp)) {
1331 if (upeek(tcp, sizeof(unsigned long)*PT_R1, &esp) < 0)
1333 /* Skip dummy stack frame. */
1335 if (current_personality == 0)
1342 if (umove(tcp, esp, &sc) < 0)
1345 tcp->u_arg[1] = sc.oldmask;
1349 long_to_sigset(tcp->u_arg[1], &sigm);
1350 tcp->u_rval = tcp->u_error = 0;
1351 if (tcp->u_arg[0] == 0)
1353 tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
1354 return RVAL_NONE | RVAL_STR;
1359 struct sigcontext sc;
1361 if (entering(tcp)) {
1363 if (upeek(tcp, 4*PT_USP, &usp) < 0)
1365 if (umove(tcp, usp, &sc) < 0)
1368 tcp->u_arg[1] = sc.sc_mask;
1372 long_to_sigset(tcp->u_arg[1], &sigm);
1373 tcp->u_rval = tcp->u_error = 0;
1374 if (tcp->u_arg[0] == 0)
1376 tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
1377 return RVAL_NONE | RVAL_STR;
1380 #elif defined(ALPHA)
1382 struct sigcontext_struct sc;
1384 if (entering(tcp)) {
1386 if (upeek(tcp, REG_FP, &fp) < 0)
1388 if (umove(tcp, fp, &sc) < 0)
1391 tcp->u_arg[1] = sc.sc_mask;
1395 long_to_sigset(tcp->u_arg[1], &sigm);
1396 tcp->u_rval = tcp->u_error = 0;
1397 if (tcp->u_arg[0] == 0)
1399 tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
1400 return RVAL_NONE | RVAL_STR;
1403 #elif defined (SPARC) || defined (SPARC64)
1405 struct pt_regs regs;
1408 if(ptrace(PTRACE_GETREGS, tcp->pid, (char *)®s, 0) < 0) {
1409 perror("sigreturn: PTRACE_GETREGS ");
1414 i1 = regs.u_regs[U_REG_O1];
1415 if(umove(tcp, i1, &si) < 0) {
1416 perror("sigreturn: umove ");
1420 tcp->u_arg[1] = si.si_mask;
1423 long_to_sigset(tcp->u_arg[1], &sigm);
1424 tcp->u_rval = tcp->u_error = 0;
1425 if(tcp->u_arg[0] == 0)
1427 tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
1428 return RVAL_NONE | RVAL_STR;
1431 #elif defined (LINUX_MIPSN32) || defined (LINUX_MIPSN64)
1432 /* This decodes rt_sigreturn. The 64-bit ABIs do not have
1439 if (upeek(tcp, REG_SP, &sp) < 0)
1441 /* There are six words followed by a 128-byte siginfo. */
1442 sp = sp + 6 * 4 + 128;
1443 if (umove(tcp, sp, &uc) < 0)
1446 tcp->u_arg[1] = *(long *) &uc.uc_sigmask;
1449 long_to_sigset(tcp->u_arg[1], &sigm);
1450 tcp->u_rval = tcp->u_error = 0;
1451 if(tcp->u_arg[0] == 0)
1453 tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
1454 return RVAL_NONE | RVAL_STR;
1459 struct pt_regs regs;
1462 if(ptrace(PTRACE_GETREGS, tcp->pid, (char *)®s, 0) < 0) {
1463 perror("sigreturn: PTRACE_GETREGS ");
1469 if (umove(tcp, sp, &si) < 0)
1471 tcp->u_arg[1] = si.si_mask;
1474 long_to_sigset(tcp->u_arg[1], &sigm);
1475 tcp->u_rval = tcp->u_error = 0;
1476 if(tcp->u_arg[0] == 0)
1478 tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
1479 return RVAL_NONE | RVAL_STR;
1482 #elif defined(CRISV10) || defined(CRISV32)
1483 struct sigcontext sc;
1485 if (entering(tcp)) {
1486 long regs[PT_MAX+1];
1490 if (ptrace(PTRACE_GETREGS, tcp->pid, NULL, (long)regs) < 0) {
1491 perror("sigreturn: PTRACE_GETREGS");
1494 if (umove(tcp, regs[PT_USP], &sc) < 0)
1497 tcp->u_arg[1] = sc.oldmask;
1500 long_to_sigset(tcp->u_arg[1], &sigm);
1501 tcp->u_rval = tcp->u_error = 0;
1503 if (tcp->u_arg[0] == 0)
1505 tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
1506 return RVAL_NONE | RVAL_STR;
1513 /* offset of ucontext in the kernel's sigframe structure */
1514 # define SIGFRAME_UC_OFFSET C_ABI_SAVE_AREA_SIZE + sizeof(struct siginfo)
1516 if (entering(tcp)) {
1518 if (upeek(tcp, PTREGS_OFFSET_SP, &sp) < 0)
1520 if (umove(tcp, sp + SIGFRAME_UC_OFFSET, &uc) < 0)
1523 memcpy(tcp->u_arg + 1, &uc.uc_sigmask, sizeof(uc.uc_sigmask));
1528 memcpy(&sigm, tcp->u_arg + 1, sizeof (sigm));
1529 tcp->u_rval = tcp->u_error = 0;
1530 if (tcp->u_arg[0] == 0)
1532 tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
1533 return RVAL_NONE | RVAL_STR;
1536 #elif defined(MICROBLAZE)
1537 struct sigcontext sc;
1539 /* TODO: Verify that this is correct... */
1540 if (entering(tcp)) {
1545 /* Read r1, the stack pointer. */
1546 if (upeek(tcp, 1 * 4, &sp) < 0)
1548 if (umove(tcp, sp, &sc) < 0)
1551 tcp->u_arg[1] = sc.oldmask;
1554 long_to_sigset(tcp->u_arg[1], &sigm);
1555 tcp->u_rval = tcp->u_error = 0;
1556 if (tcp->u_arg[0] == 0)
1558 tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
1559 return RVAL_NONE | RVAL_STR;
1563 #warning No sys_sigreturn() for this architecture
1564 #warning (no problem, just a reminder :-)
1575 long_to_sigset(tcp->u_rval, &sigm);
1576 tcp->auxstr = sprintsigmask("mask ", &sigm, 0);
1578 return RVAL_HEX | RVAL_STR;
1582 sys_sigsuspend(struct tcb *tcp)
1584 if (entering(tcp)) {
1586 long_to_sigset(tcp->u_arg[2], &sigm);
1587 printsigmask(&sigm, 0);
1594 #if defined(SVR4) || defined(FREEBSD)
1602 if (entering(tcp)) {
1603 if (umove(tcp, tcp->u_arg[0], &sigset) < 0)
1606 printsigmask(&sigset, 0);
1611 static const struct xlat ucontext_flags[] = {
1612 { UC_SIGMASK, "UC_SIGMASK" },
1613 { UC_STACK, "UC_STACK" },
1614 { UC_CPU, "UC_CPU" },
1616 { UC_FPU, "UC_FPU" },
1619 { UC_INTR, "UC_INTR" },
1623 #endif /* !FREEBSD */
1624 #endif /* SVR4 || FREEBSD */
1626 #if defined SVR4 || defined LINUX || defined FREEBSD
1627 #if defined LINUX && !defined SS_ONSTACK
1628 #define SS_ONSTACK 1
1629 #define SS_DISABLE 2
1630 #if __GLIBC_MINOR__ == 0
1640 #define stack_t struct sigaltstack
1643 static const struct xlat sigaltstack_flags[] = {
1644 { SS_ONSTACK, "SS_ONSTACK" },
1645 { SS_DISABLE, "SS_DISABLE" },
1652 printcontext(tcp, ucp)
1658 tprintf("uc_flags=");
1659 printflags(ucontext_flags, ucp->uc_flags, "UC_???");
1660 tprintf(", uc_link=%#lx, ", (unsigned long) ucp->uc_link);
1662 tprintf("uc_sigmask=");
1663 printsigmask(&ucp->uc_sigmask, 0);
1665 tprintf(", uc_stack={ss_sp=%#lx, ss_size=%d, ss_flags=",
1666 (unsigned long) ucp->uc_stack.ss_sp,
1667 ucp->uc_stack.ss_size);
1668 printflags(sigaltstack_flags, ucp->uc_stack.ss_flags, "SS_???");
1682 tprintf("%#lx", tcp->u_arg[0]);
1683 else if (!tcp->u_arg[0])
1685 else if (umove(tcp, tcp->u_arg[0], &uc) < 0)
1688 printcontext(tcp, &uc);
1699 if (entering(tcp)) {
1702 else if (umove(tcp, tcp->u_arg[0], &uc) < 0)
1705 printcontext(tcp, &uc);
1708 tcp->u_rval = tcp->u_error = 0;
1709 if (tcp->u_arg[0] == 0)
1718 #if defined(LINUX) || defined(FREEBSD)
1721 print_stack_t(tcp, addr)
1726 if (umove(tcp, addr, &ss) < 0)
1728 tprintf("{ss_sp=%#lx, ss_flags=", (unsigned long) ss.ss_sp);
1729 printflags(sigaltstack_flags, ss.ss_flags, "SS_???");
1730 tprintf(", ss_size=%lu}", (unsigned long) ss.ss_size);
1735 sys_sigaltstack(tcp)
1738 if (entering(tcp)) {
1739 if (tcp->u_arg[0] == 0)
1741 else if (print_stack_t(tcp, tcp->u_arg[0]) < 0)
1746 if (tcp->u_arg[1] == 0)
1748 else if (print_stack_t(tcp, tcp->u_arg[1]) < 0)
1755 #ifdef HAVE_SIGACTION
1758 sys_sigprocmask(tcp)
1762 if (entering(tcp)) {
1763 printxval(sigprocmaskcmds, tcp->u_arg[0], "SIG_???");
1765 printsigmask(tcp->u_arg[1], 0);
1767 else if (!syserror(tcp)) {
1768 tcp->auxstr = sprintsigmask("old mask ", tcp->u_rval, 0);
1769 return RVAL_HEX | RVAL_STR;
1772 if (entering(tcp)) {
1774 if (tcp->u_arg[0] == 0)
1778 printxval(sigprocmaskcmds, tcp->u_arg[0], "SIG_???");
1780 print_sigset(tcp, tcp->u_arg[1], 0);
1786 else if (syserror(tcp))
1787 tprintf("%#lx", tcp->u_arg[2]);
1789 print_sigset(tcp, tcp->u_arg[2], 0);
1795 #endif /* HAVE_SIGACTION */
1801 if (entering(tcp)) {
1803 * Sign-extend a 32-bit value when that's what it is.
1805 long pid = tcp->u_arg[0];
1806 if (personality_wordsize[current_personality] < sizeof pid)
1807 pid = (long) (int) pid;
1808 tprintf("%ld, %s", pid, signame(tcp->u_arg[1]));
1813 #if defined(FREEBSD) || defined(SUNOS4)
1818 return sys_kill(tcp);
1820 #endif /* FREEBSD || SUNOS4 */
1827 if (entering(tcp)) {
1828 tprintf("%ld, %ld, %s",
1829 tcp->u_arg[0], tcp->u_arg[1], signame(tcp->u_arg[2]));
1843 tprintf("%#lx", tcp->u_arg[0]);
1844 else if (copy_sigset(tcp, tcp->u_arg[0], &sigset) < 0)
1847 printsigmask(&sigset, 0);
1853 int sys_sigwait(tcp)
1858 if (entering(tcp)) {
1859 if (copy_sigset(tcp, tcp->u_arg[0], &sigset) < 0)
1862 printsigmask(&sigset, 0);
1865 if (!syserror(tcp)) {
1866 tcp->auxstr = signalent[tcp->u_rval];
1867 return RVAL_DECIMAL | RVAL_STR;
1877 sys_rt_sigprocmask(tcp)
1882 /* Note: arg[3] is the length of the sigset. */
1883 if (entering(tcp)) {
1884 printxval(sigprocmaskcmds, tcp->u_arg[0], "SIG_???");
1888 else if (copy_sigset_len(tcp, tcp->u_arg[1], &sigset, tcp->u_arg[3]) < 0)
1889 tprintf("%#lx, ", tcp->u_arg[1]);
1891 printsigmask(&sigset, 1);
1899 else if (syserror(tcp))
1900 tprintf("%#lx", tcp->u_arg[2]);
1901 else if (copy_sigset_len(tcp, tcp->u_arg[2], &sigset, tcp->u_arg[3]) < 0)
1904 printsigmask(&sigset, 1);
1905 tprintf(", %lu", tcp->u_arg[3]);
1911 /* Structure describing the action to be taken when a signal arrives. */
1912 struct new_sigaction
1914 __sighandler_t __sa_handler;
1915 unsigned long sa_flags;
1916 void (*sa_restorer) (void);
1917 /* Kernel treats sa_mask as an array of longs. */
1918 unsigned long sa_mask[NSIG / sizeof(long) ? NSIG / sizeof(long) : 1];
1920 /* Same for i386-on-x86_64 and similar cases */
1921 struct new_sigaction32
1923 uint32_t __sa_handler;
1925 uint32_t sa_restorer;
1926 uint32_t sa_mask[2 * (NSIG / sizeof(long) ? NSIG / sizeof(long) : 1)];
1931 sys_rt_sigaction(struct tcb *tcp)
1933 struct new_sigaction sa;
1938 if (entering(tcp)) {
1939 printsignal(tcp->u_arg[0]);
1941 addr = tcp->u_arg[1];
1943 addr = tcp->u_arg[2];
1949 if (!verbose(tcp)) {
1950 tprintf("%#lx", addr);
1953 #if SUPPORTED_PERSONALITIES > 1
1954 if (personality_wordsize[current_personality] != sizeof(sa.sa_flags)
1955 && personality_wordsize[current_personality] == 4
1957 struct new_sigaction32 sa32;
1958 r = umove(tcp, addr, &sa32);
1960 memset(&sa, 0, sizeof(sa));
1961 sa.__sa_handler = (void*)(unsigned long)sa32.__sa_handler;
1962 sa.sa_flags = sa32.sa_flags;
1963 sa.sa_restorer = (void*)(unsigned long)sa32.sa_restorer;
1964 /* Kernel treats sa_mask as an array of longs.
1965 * For 32-bit process, "long" is uint32_t, thus, for example,
1966 * 32th bit in sa_mask will end up as bit 0 in sa_mask[1].
1967 * But for (64-bit) kernel, 32th bit in sa_mask is
1968 * 32th bit in 0th (64-bit) long!
1969 * For little-endian, it's the same.
1970 * For big-endian, we swap 32-bit words.
1972 sa.sa_mask[0] = sa32.sa_mask[0] + ((long)(sa32.sa_mask[1]) << 32);
1977 r = umove(tcp, addr, &sa);
1983 /* Architectures using function pointers, like
1984 * hppa, may need to manipulate the function pointer
1985 * to compute the result of a comparison. However,
1986 * the SA_HANDLER function pointer exists only in
1987 * the address space of the traced process, and can't
1988 * be manipulated by strace. In order to prevent the
1989 * compiler from generating code to manipulate
1990 * SA_HANDLER we cast the function pointers to long. */
1991 if ((long)sa.__sa_handler == (long)SIG_ERR)
1992 tprintf("{SIG_ERR, ");
1993 else if ((long)sa.__sa_handler == (long)SIG_DFL)
1994 tprintf("{SIG_DFL, ");
1995 else if ((long)sa.__sa_handler == (long)SIG_IGN)
1996 tprintf("{SIG_IGN, ");
1998 tprintf("{%#lx, ", (long) sa.__sa_handler);
1999 /* Questionable code below.
2000 * Kernel won't handle sys_rt_sigaction
2001 * with wrong sigset size (just returns EINVAL)
2002 * therefore tcp->u_arg[3(4)] _must_ be NSIG / 8 here,
2003 * and we always use smaller memcpy. */
2004 sigemptyset(&sigset);
2006 if (tcp->u_arg[4] <= sizeof(sigset))
2007 memcpy(&sigset, &sa.sa_mask, tcp->u_arg[4]);
2009 if (tcp->u_arg[3] <= sizeof(sigset))
2010 memcpy(&sigset, &sa.sa_mask, tcp->u_arg[3]);
2013 memcpy(&sigset, &sa.sa_mask, sizeof(sigset));
2014 printsigmask(&sigset, 1);
2016 printflags(sigact_flags, sa.sa_flags, "SA_???");
2018 if (sa.sa_flags & SA_RESTORER)
2019 tprintf(", %p", sa.sa_restorer);
2028 tprintf(", %#lx, %lu", tcp->u_arg[3], tcp->u_arg[4]);
2029 #elif defined(ALPHA)
2030 tprintf(", %lu, %#lx", tcp->u_arg[3], tcp->u_arg[4]);
2032 tprintf(", %lu", tcp->u_arg[3]);
2038 sys_rt_sigpending(struct tcb *tcp)
2044 tprintf("%#lx", tcp->u_arg[0]);
2045 else if (copy_sigset_len(tcp, tcp->u_arg[0],
2046 &sigset, tcp->u_arg[1]) < 0)
2049 printsigmask(&sigset, 1);
2055 sys_rt_sigsuspend(struct tcb *tcp)
2057 if (entering(tcp)) {
2059 if (copy_sigset_len(tcp, tcp->u_arg[0], &sigm, tcp->u_arg[1]) < 0)
2062 printsigmask(&sigm, 1);
2068 sys_rt_sigqueueinfo(struct tcb *tcp)
2070 if (entering(tcp)) {
2072 tprintf("%lu, ", tcp->u_arg[0]);
2073 printsignal(tcp->u_arg[1]);
2075 if (umove(tcp, tcp->u_arg[2], &si) < 0)
2076 tprintf("%#lx", tcp->u_arg[2]);
2078 printsiginfo(&si, verbose(tcp));
2083 int sys_rt_sigtimedwait(struct tcb *tcp)
2085 if (entering(tcp)) {
2088 if (copy_sigset_len(tcp, tcp->u_arg[0],
2089 &sigset, tcp->u_arg[3]) < 0)
2092 printsigmask(&sigset, 1);
2094 /* This is the only "return" parameter, */
2095 if (tcp->u_arg[1] != 0)
2097 /* ... if it's NULL, can decode all on entry */
2100 else if (tcp->u_arg[1] != 0) {
2101 /* syscall exit, and u_arg[1] wasn't NULL */
2103 tprintf("%#lx, ", tcp->u_arg[1]);
2106 if (umove(tcp, tcp->u_arg[1], &si) < 0)
2107 tprintf("%#lx, ", tcp->u_arg[1]);
2109 printsiginfo(&si, verbose(tcp));
2115 /* syscall exit, and u_arg[1] was NULL */
2118 print_timespec(tcp, tcp->u_arg[2]);
2119 tprintf(", %d", (int) tcp->u_arg[3]);
2124 sys_restart_syscall(struct tcb *tcp)
2127 tprintf("<... resuming interrupted call ...>");
2132 do_signalfd(struct tcb *tcp, int flags_arg)
2134 if (entering(tcp)) {
2135 printfd(tcp, tcp->u_arg[0]);
2137 print_sigset(tcp, tcp->u_arg[1], 1);
2138 tprintf(", %lu", tcp->u_arg[2]);
2139 if (flags_arg >= 0) {
2141 printflags(open_mode_flags, tcp->u_arg[flags_arg], "O_???");
2148 sys_signalfd(struct tcb *tcp)
2150 return do_signalfd(tcp, -1);
2154 sys_signalfd4(struct tcb *tcp)
2156 return do_signalfd(tcp, 3);