1685 lines
36 KiB
C
1685 lines
36 KiB
C
/*
|
|
* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
|
|
* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
|
|
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
|
|
* Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
|
|
* Copyright (c) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
|
|
* Linux for s390 port by D.J. Barrow
|
|
* <barrow_dj@mail.yahoo.com,djbarrow@de.ibm.com>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $Id$
|
|
*/
|
|
|
|
#include "defs.h"
|
|
|
|
#include <signal.h>
|
|
#include <sys/user.h>
|
|
#include <fcntl.h>
|
|
|
|
#ifdef SVR4
|
|
#include <sys/ucontext.h>
|
|
#endif /* SVR4 */
|
|
|
|
#ifdef HAVE_SYS_REG_H
|
|
# include <sys/reg.h>
|
|
#ifndef PTRACE_PEEKUSR
|
|
# define PTRACE_PEEKUSR PTRACE_PEEKUSER
|
|
#endif
|
|
#ifndef PTRACE_POKEUSR
|
|
# define PTRACE_POKEUSR PTRACE_POKEUSER
|
|
#endif
|
|
#elif defined(HAVE_LINUX_PTRACE_H)
|
|
#undef PTRACE_SYSCALL
|
|
#include <linux/ptrace.h>
|
|
#endif
|
|
|
|
|
|
#ifdef LINUX
|
|
|
|
#ifdef IA64
|
|
# include <asm/ptrace_offsets.h>
|
|
#endif /* !IA64 */
|
|
|
|
#ifdef HAVE_ASM_SIGCONTEXT_H
|
|
#include <asm/sigcontext.h>
|
|
#ifdef SPARC
|
|
#include <asm/reg.h>
|
|
typedef struct {
|
|
struct regs si_regs;
|
|
int si_mask;
|
|
} m_siginfo_t;
|
|
#endif
|
|
#else /* !HAVE_ASM_SIGCONTEXT_H */
|
|
#ifdef I386
|
|
struct sigcontext_struct {
|
|
unsigned short gs, __gsh;
|
|
unsigned short fs, __fsh;
|
|
unsigned short es, __esh;
|
|
unsigned short ds, __dsh;
|
|
unsigned long edi;
|
|
unsigned long esi;
|
|
unsigned long ebp;
|
|
unsigned long esp;
|
|
unsigned long ebx;
|
|
unsigned long edx;
|
|
unsigned long ecx;
|
|
unsigned long eax;
|
|
unsigned long trapno;
|
|
unsigned long err;
|
|
unsigned long eip;
|
|
unsigned short cs, __csh;
|
|
unsigned long eflags;
|
|
unsigned long esp_at_signal;
|
|
unsigned short ss, __ssh;
|
|
unsigned long i387;
|
|
unsigned long oldmask;
|
|
unsigned long cr2;
|
|
};
|
|
#else /* !I386 */
|
|
#ifdef M68K
|
|
struct sigcontext
|
|
{
|
|
unsigned long sc_mask;
|
|
unsigned long sc_usp;
|
|
unsigned long sc_d0;
|
|
unsigned long sc_d1;
|
|
unsigned long sc_a0;
|
|
unsigned long sc_a1;
|
|
unsigned short sc_sr;
|
|
unsigned long sc_pc;
|
|
unsigned short sc_formatvec;
|
|
};
|
|
#endif /* M68K */
|
|
#endif /* !I386 */
|
|
#endif /* !HAVE_ASM_SIGCONTEXT_H */
|
|
#ifndef NSIG
|
|
#define NSIG 32
|
|
#endif
|
|
#ifdef ARM
|
|
#undef NSIG
|
|
#define NSIG 32
|
|
#endif
|
|
#endif /* LINUX */
|
|
|
|
char *signalent0[] = {
|
|
#include "signalent.h"
|
|
};
|
|
int nsignals0 = sizeof signalent0 / sizeof signalent0[0];
|
|
|
|
#if SUPPORTED_PERSONALITIES >= 2
|
|
char *signalent1[] = {
|
|
#include "signalent1.h"
|
|
};
|
|
int nsignals1 = sizeof signalent1 / sizeof signalent1[0];
|
|
#endif /* SUPPORTED_PERSONALITIES >= 2 */
|
|
|
|
#if SUPPORTED_PERSONALITIES >= 3
|
|
char *signalent2[] = {
|
|
#include "signalent2.h"
|
|
};
|
|
int nsignals2 = sizeof signalent2 / sizeof signalent2[0];
|
|
#endif /* SUPPORTED_PERSONALITIES >= 3 */
|
|
|
|
char **signalent;
|
|
int nsignals;
|
|
|
|
#if defined(SUNOS4) || defined(FREEBSD)
|
|
|
|
static struct xlat sigvec_flags[] = {
|
|
{ SV_ONSTACK, "SV_ONSTACK" },
|
|
{ SV_INTERRUPT, "SV_INTERRUPT" },
|
|
{ SV_RESETHAND, "SV_RESETHAND" },
|
|
{ SA_NOCLDSTOP, "SA_NOCLDSTOP" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
#endif /* SUNOS4 || FREEBSD */
|
|
|
|
#ifdef HAVE_SIGACTION
|
|
|
|
static struct xlat sigact_flags[] = {
|
|
#ifdef SA_RESTORER
|
|
{ SA_RESTORER, "SA_RESTORER" },
|
|
#endif
|
|
#ifdef SA_STACK
|
|
{ SA_STACK, "SA_STACK" },
|
|
#endif
|
|
#ifdef SA_RESTART
|
|
{ SA_RESTART, "SA_RESTART" },
|
|
#endif
|
|
#ifdef SA_INTERRUPT
|
|
{ SA_INTERRUPT, "SA_INTERRUPT" },
|
|
#endif
|
|
#ifdef SA_NOMASK
|
|
{ SA_NOMASK, "SA_NOMASK" },
|
|
#endif
|
|
#ifdef SA_ONESHOT
|
|
{ SA_ONESHOT, "SA_ONESHOT" },
|
|
#endif
|
|
#ifdef SA_SIGINFO
|
|
{ SA_SIGINFO, "SA_SIGINFO" },
|
|
#endif
|
|
#ifdef SA_RESETHAND
|
|
{ SA_RESETHAND, "SA_RESETHAND" },
|
|
#endif
|
|
#ifdef SA_ONSTACK
|
|
{ SA_ONSTACK, "SA_ONSTACK" },
|
|
#endif
|
|
#ifdef SA_NODEFER
|
|
{ SA_NODEFER, "SA_NODEFER" },
|
|
#endif
|
|
#ifdef SA_NOCLDSTOP
|
|
{ SA_NOCLDSTOP, "SA_NOCLDSTOP" },
|
|
#endif
|
|
#ifdef SA_NOCLDWAIT
|
|
{ SA_NOCLDWAIT, "SA_NOCLDWAIT" },
|
|
#endif
|
|
#ifdef _SA_BSDCALL
|
|
{ _SA_BSDCALL, "_SA_BSDCALL" },
|
|
#endif
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static struct xlat sigprocmaskcmds[] = {
|
|
{ SIG_BLOCK, "SIG_BLOCK" },
|
|
{ SIG_UNBLOCK, "SIG_UNBLOCK" },
|
|
{ SIG_SETMASK, "SIG_SETMASK" },
|
|
#ifdef SIG_SETMASK32
|
|
{ SIG_SETMASK32,"SIG_SETMASK32" },
|
|
#endif
|
|
{ 0, NULL },
|
|
};
|
|
|
|
#endif /* HAVE_SIGACTION */
|
|
|
|
/* Anonymous realtime signals. */
|
|
/* Under glibc 2.1, SIGRTMIN et al are functions, but __SIGRTMIN is a
|
|
constant. This is what we want. Otherwise, just use SIGRTMIN. */
|
|
#ifdef SIGRTMIN
|
|
#ifndef __SIGRTMIN
|
|
#define __SIGRTMIN SIGRTMIN
|
|
#define __SIGRTMAX SIGRTMAX /* likewise */
|
|
#endif
|
|
#endif
|
|
|
|
char *
|
|
signame(sig)
|
|
int sig;
|
|
{
|
|
static char buf[30];
|
|
if (sig < nsignals) {
|
|
return signalent[sig];
|
|
#ifdef SIGRTMIN
|
|
} else if (sig >= __SIGRTMIN && sig <= __SIGRTMAX) {
|
|
sprintf(buf, "SIGRT_%ld", (long)(sig - __SIGRTMIN));
|
|
return buf;
|
|
#endif /* SIGRTMIN */
|
|
} else {
|
|
sprintf(buf, "%d", sig);
|
|
return buf;
|
|
}
|
|
}
|
|
|
|
#ifndef UNIXWARE
|
|
static void
|
|
long_to_sigset(l, s)
|
|
long l;
|
|
sigset_t *s;
|
|
{
|
|
sigemptyset(s);
|
|
*(long *)s = l;
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
copy_sigset_len(tcp, addr, s, len)
|
|
struct tcb *tcp;
|
|
long addr;
|
|
sigset_t *s;
|
|
int len;
|
|
{
|
|
if (len > sizeof(*s))
|
|
len = sizeof(*s);
|
|
sigemptyset(s);
|
|
if (umoven(tcp, addr, len, (char *)s) < 0)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
#ifdef LINUX
|
|
/* Original sigset is unsigned long */
|
|
#define copy_sigset(tcp, addr, s) copy_sigset_len(tcp, addr, s, sizeof(long))
|
|
#else
|
|
#define copy_sigset(tcp, addr, s) copy_sigset_len(tcp, addr, s, sizeof(sigset_t))
|
|
#endif
|
|
|
|
static char *
|
|
sprintsigmask(s, mask, rt)
|
|
char *s;
|
|
sigset_t *mask;
|
|
int rt; /* set might include realtime sigs */
|
|
{
|
|
int i, nsigs;
|
|
int maxsigs;
|
|
char *format;
|
|
static char outstr[256];
|
|
|
|
strcpy(outstr, s);
|
|
s = outstr + strlen(outstr);
|
|
nsigs = 0;
|
|
maxsigs = nsignals;
|
|
#ifdef __SIGRTMAX
|
|
if (rt)
|
|
maxsigs = __SIGRTMAX; /* instead */
|
|
#endif
|
|
for (i = 1; i < maxsigs; i++) {
|
|
if (sigismember(mask, i) == 1)
|
|
nsigs++;
|
|
}
|
|
if (nsigs >= nsignals * 2 / 3) {
|
|
*s++ = '~';
|
|
for (i = 1; i < maxsigs; i++) {
|
|
switch (sigismember(mask, i)) {
|
|
case 1:
|
|
sigdelset(mask, i);
|
|
break;
|
|
case 0:
|
|
sigaddset(mask, i);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
format = "%s";
|
|
*s++ = '[';
|
|
for (i = 1; i < maxsigs; i++) {
|
|
if (sigismember(mask, i) == 1) {
|
|
sprintf(s, format, signame(i) + 3); s += strlen(s);
|
|
format = " %s";
|
|
}
|
|
}
|
|
*s++ = ']';
|
|
*s = '\0';
|
|
return outstr;
|
|
}
|
|
|
|
static void
|
|
printsigmask(mask, rt)
|
|
sigset_t *mask;
|
|
int rt;
|
|
{
|
|
tprintf("%s", sprintsigmask("", mask, rt));
|
|
}
|
|
|
|
void
|
|
printsignal(nr)
|
|
int nr;
|
|
{
|
|
tprintf(signame(nr));
|
|
}
|
|
|
|
/*
|
|
* Check process TCP for the disposition of signal SIG.
|
|
* Return 1 if the process would somehow manage to survive signal SIG,
|
|
* else return 0. This routine will never be called with SIGKILL.
|
|
*/
|
|
int
|
|
sigishandled(tcp, sig)
|
|
struct tcb *tcp;
|
|
int sig;
|
|
{
|
|
#ifdef LINUX
|
|
int sfd;
|
|
char sname[32];
|
|
char buf[1024];
|
|
char *s;
|
|
int i;
|
|
unsigned int signalled, blocked, ignored, caught;
|
|
|
|
/* This is incredibly costly but it's worth it. */
|
|
sprintf(sname, "/proc/%d/stat", tcp->pid);
|
|
if ((sfd = open(sname, O_RDONLY)) == -1) {
|
|
perror(sname);
|
|
return 1;
|
|
}
|
|
i = read(sfd, buf, 1024);
|
|
buf[i] = '\0';
|
|
close(sfd);
|
|
/*
|
|
* Skip the extraneous fields. This loses if the
|
|
* command name has any spaces in it. So be it.
|
|
*/
|
|
for (i = 0, s = buf; i < 30; i++) {
|
|
while (*++s != ' ') {
|
|
if (!*s)
|
|
break;
|
|
}
|
|
}
|
|
if (sscanf(s, "%u%u%u%u",
|
|
&signalled, &blocked, &ignored, &caught) != 4) {
|
|
fprintf(stderr, "/proc/pid/stat format error\n");
|
|
return 1;
|
|
}
|
|
#ifdef DEBUG
|
|
fprintf(stderr, "sigs: %08x %08x %08x %08x\n",
|
|
signalled, blocked, ignored, caught);
|
|
#endif
|
|
if ((ignored & sigmask(sig)) || (caught & sigmask(sig)))
|
|
return 1;
|
|
#endif /* LINUX */
|
|
|
|
#ifdef SUNOS4
|
|
void (*u_signal)();
|
|
|
|
if (upeek(tcp->pid, uoff(u_signal[0]) + sig*sizeof(u_signal),
|
|
(long *) &u_signal) < 0) {
|
|
return 0;
|
|
}
|
|
if (u_signal != SIG_DFL)
|
|
return 1;
|
|
#endif /* SUNOS4 */
|
|
|
|
#ifdef SVR4
|
|
/*
|
|
* Since procfs doesn't interfere with wait I think it is safe
|
|
* to punt on this question. If not, the information is there.
|
|
*/
|
|
return 1;
|
|
#else /* !SVR4 */
|
|
switch (sig) {
|
|
case SIGCONT:
|
|
case SIGSTOP:
|
|
case SIGTSTP:
|
|
case SIGTTIN:
|
|
case SIGTTOU:
|
|
case SIGCHLD:
|
|
case SIGIO:
|
|
#if defined(SIGURG) && SIGURG != SIGIO
|
|
case SIGURG:
|
|
#endif
|
|
case SIGWINCH:
|
|
/* Gloria Gaynor says ... */
|
|
return 1;
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
#endif /* !SVR4 */
|
|
}
|
|
|
|
#if defined(SUNOS4) || defined(FREEBSD)
|
|
|
|
int
|
|
sys_sigvec(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
struct sigvec sv;
|
|
long addr;
|
|
|
|
if (entering(tcp)) {
|
|
printsignal(tcp->u_arg[0]);
|
|
tprintf(", ");
|
|
addr = tcp->u_arg[1];
|
|
} else {
|
|
addr = tcp->u_arg[2];
|
|
}
|
|
if (addr == 0)
|
|
tprintf("NULL");
|
|
else if (!verbose(tcp))
|
|
tprintf("%#lx", addr);
|
|
else if (umove(tcp, addr, &sv) < 0)
|
|
tprintf("{...}");
|
|
else {
|
|
switch ((int) sv.sv_handler) {
|
|
case (int) SIG_ERR:
|
|
tprintf("{SIG_ERR}");
|
|
break;
|
|
case (int) SIG_DFL:
|
|
tprintf("{SIG_DFL}");
|
|
break;
|
|
case (int) SIG_IGN:
|
|
if (tcp->u_arg[0] == SIGTRAP) {
|
|
tcp->flags |= TCB_SIGTRAPPED;
|
|
kill(tcp->pid, SIGSTOP);
|
|
}
|
|
tprintf("{SIG_IGN}");
|
|
break;
|
|
case (int) SIG_HOLD:
|
|
if (tcp->u_arg[0] == SIGTRAP) {
|
|
tcp->flags |= TCB_SIGTRAPPED;
|
|
kill(tcp->pid, SIGSTOP);
|
|
}
|
|
tprintf("SIG_HOLD");
|
|
break;
|
|
default:
|
|
if (tcp->u_arg[0] == SIGTRAP) {
|
|
tcp->flags |= TCB_SIGTRAPPED;
|
|
kill(tcp->pid, SIGSTOP);
|
|
}
|
|
tprintf("{%#lx, ", (unsigned long) sv.sv_handler);
|
|
printsigmask(&sv.sv_mask, 0);
|
|
tprintf(", ");
|
|
if (!printflags(sigvec_flags, sv.sv_flags))
|
|
tprintf("0");
|
|
tprintf("}");
|
|
}
|
|
}
|
|
if (entering(tcp))
|
|
tprintf(", ");
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sys_sigpause(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
if (entering(tcp)) { /* WTA: UD had a bug here: he forgot the braces */
|
|
sigset_t sigm;
|
|
long_to_sigset(tcp->u_arg[0], &sigm);
|
|
printsigmask(&sigm, 0);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sys_sigstack(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
struct sigstack ss;
|
|
long addr;
|
|
|
|
if (entering(tcp))
|
|
addr = tcp->u_arg[0];
|
|
else
|
|
addr = tcp->u_arg[1];
|
|
if (addr == 0)
|
|
tprintf("NULL");
|
|
else if (umove(tcp, addr, &ss) < 0)
|
|
tprintf("%#lx", addr);
|
|
else {
|
|
tprintf("{ss_sp %#lx ", (unsigned long) ss.ss_sp);
|
|
tprintf("ss_onstack %s}", ss.ss_onstack ? "YES" : "NO");
|
|
}
|
|
if (entering(tcp))
|
|
tprintf(", ");
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sys_sigcleanup(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif /* SUNOS4 || FREEBSD */
|
|
|
|
#ifndef SVR4
|
|
|
|
int
|
|
sys_sigsetmask(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
if (entering(tcp)) {
|
|
sigset_t sigm;
|
|
long_to_sigset(tcp->u_arg[0], &sigm);
|
|
printsigmask(&sigm, 0);
|
|
#ifndef USE_PROCFS
|
|
if ((tcp->u_arg[0] & sigmask(SIGTRAP))) {
|
|
/* Mark attempt to block SIGTRAP */
|
|
tcp->flags |= TCB_SIGTRAPPED;
|
|
/* Send unblockable signal */
|
|
kill(tcp->pid, SIGSTOP);
|
|
}
|
|
#endif /* !USE_PROCFS */
|
|
}
|
|
else if (!syserror(tcp)) {
|
|
sigset_t sigm;
|
|
long_to_sigset(tcp->u_rval, &sigm);
|
|
tcp->auxstr = sprintsigmask("old mask ", &sigm, 0);
|
|
|
|
return RVAL_HEX | RVAL_STR;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sys_sigblock(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
return sys_sigsetmask(tcp);
|
|
}
|
|
|
|
#endif /* !SVR4 */
|
|
|
|
#ifdef HAVE_SIGACTION
|
|
|
|
#ifdef LINUX
|
|
struct old_sigaction {
|
|
__sighandler_t __sa_handler;
|
|
unsigned long sa_mask;
|
|
unsigned long sa_flags;
|
|
void (*sa_restorer)(void);
|
|
};
|
|
#define SA_HANDLER __sa_handler
|
|
#endif /* LINUX */
|
|
|
|
#ifndef SA_HANDLER
|
|
#define SA_HANDLER sa_handler
|
|
#endif
|
|
|
|
int
|
|
sys_sigaction(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
long addr;
|
|
sigset_t sigset;
|
|
#ifdef LINUX
|
|
struct old_sigaction sa;
|
|
#else
|
|
struct sigaction sa;
|
|
#endif
|
|
|
|
|
|
if (entering(tcp)) {
|
|
printsignal(tcp->u_arg[0]);
|
|
tprintf(", ");
|
|
addr = tcp->u_arg[1];
|
|
} else
|
|
addr = tcp->u_arg[2];
|
|
if (addr == 0)
|
|
tprintf("NULL");
|
|
else if (!verbose(tcp))
|
|
tprintf("%#lx", addr);
|
|
else if (umove(tcp, addr, &sa) < 0)
|
|
tprintf("{...}");
|
|
else {
|
|
switch ((long) sa.SA_HANDLER) {
|
|
case (long) SIG_ERR:
|
|
tprintf("{SIG_ERR}");
|
|
break;
|
|
case (long) SIG_DFL:
|
|
tprintf("{SIG_DFL}");
|
|
break;
|
|
case (long) SIG_IGN:
|
|
#ifndef USE_PROCFS
|
|
if (tcp->u_arg[0] == SIGTRAP) {
|
|
tcp->flags |= TCB_SIGTRAPPED;
|
|
kill(tcp->pid, SIGSTOP);
|
|
}
|
|
#endif /* !USE_PROCFS */
|
|
tprintf("{SIG_IGN}");
|
|
break;
|
|
default:
|
|
#ifndef USE_PROCFS
|
|
if (tcp->u_arg[0] == SIGTRAP) {
|
|
tcp->flags |= TCB_SIGTRAPPED;
|
|
kill(tcp->pid, SIGSTOP);
|
|
}
|
|
#endif /* !USE_PROCFS */
|
|
tprintf("{%#lx, ", (long) sa.SA_HANDLER);
|
|
#ifndef LINUX
|
|
printsigmask (&sa.sa_mask, 0);
|
|
#else
|
|
long_to_sigset(sa.sa_mask, &sigset);
|
|
printsigmask(&sigset, 0);
|
|
#endif
|
|
tprintf(", ");
|
|
if (!printflags(sigact_flags, sa.sa_flags))
|
|
tprintf("0");
|
|
tprintf("}");
|
|
}
|
|
}
|
|
if (entering(tcp))
|
|
tprintf(", ");
|
|
#ifdef LINUX
|
|
else
|
|
tprintf(", %#lx", (unsigned long) sa.sa_restorer);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sys_signal(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
if (entering(tcp)) {
|
|
printsignal(tcp->u_arg[0]);
|
|
tprintf(", ");
|
|
switch (tcp->u_arg[1]) {
|
|
case (int) SIG_ERR:
|
|
tprintf("SIG_ERR");
|
|
break;
|
|
case (int) SIG_DFL:
|
|
tprintf("SIG_DFL");
|
|
break;
|
|
case (int) SIG_IGN:
|
|
#ifndef USE_PROCFS
|
|
if (tcp->u_arg[0] == SIGTRAP) {
|
|
tcp->flags |= TCB_SIGTRAPPED;
|
|
kill(tcp->pid, SIGSTOP);
|
|
}
|
|
#endif /* !USE_PROCFS */
|
|
tprintf("SIG_IGN");
|
|
break;
|
|
default:
|
|
#ifndef USE_PROCFS
|
|
if (tcp->u_arg[0] == SIGTRAP) {
|
|
tcp->flags |= TCB_SIGTRAPPED;
|
|
kill(tcp->pid, SIGSTOP);
|
|
}
|
|
#endif /* !USE_PROCFS */
|
|
tprintf("%#lx", tcp->u_arg[1]);
|
|
}
|
|
return 0;
|
|
}
|
|
else {
|
|
switch (tcp->u_rval) {
|
|
case (int) SIG_ERR:
|
|
tcp->auxstr = "SIG_ERR"; break;
|
|
case (int) SIG_DFL:
|
|
tcp->auxstr = "SIG_DFL"; break;
|
|
case (int) SIG_IGN:
|
|
tcp->auxstr = "SIG_IGN"; break;
|
|
default:
|
|
tcp->auxstr = NULL;
|
|
}
|
|
return RVAL_HEX | RVAL_STR;
|
|
}
|
|
}
|
|
|
|
int
|
|
sys_sighold(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
if (entering(tcp)) {
|
|
printsignal(tcp->u_arg[0]);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#endif /* HAVE_SIGACTION */
|
|
|
|
#ifdef LINUX
|
|
|
|
int
|
|
sys_sigreturn(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
#ifdef S390
|
|
long usp;
|
|
struct sigcontext_struct sc;
|
|
|
|
if (entering(tcp)) {
|
|
tcp->u_arg[0] = 0;
|
|
if (upeek(tcp->pid,PT_GPR15,&usp)<0)
|
|
return 0;
|
|
if (umove(tcp, usp+__SIGNAL_FRAMESIZE, &sc) < 0)
|
|
return 0;
|
|
tcp->u_arg[0] = 1;
|
|
memcpy(&tcp->u_arg[1],&sc.oldmask[0],sizeof(sigset_t));
|
|
} else {
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
tcp->auxstr = sprintsigmask("mask now ",(sigset_t *)&tcp->u_arg[1]);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#else
|
|
#ifdef I386
|
|
long esp;
|
|
struct sigcontext_struct sc;
|
|
|
|
if (entering(tcp)) {
|
|
tcp->u_arg[0] = 0;
|
|
if (upeek(tcp->pid, 4*UESP, &esp) < 0)
|
|
return 0;
|
|
if (umove(tcp, esp, &sc) < 0)
|
|
return 0;
|
|
tcp->u_arg[0] = 1;
|
|
tcp->u_arg[1] = sc.oldmask;
|
|
}
|
|
else {
|
|
sigset_t sigm;
|
|
long_to_sigset(tcp->u_arg[1], &sigm);
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#else /* !I386 */
|
|
#ifdef IA64
|
|
struct sigcontext sc;
|
|
long sp;
|
|
|
|
if (entering(tcp)) {
|
|
/* offset of sigcontext in the kernel's sigframe structure: */
|
|
# define SIGFRAME_SC_OFFSET 0x90
|
|
tcp->u_arg[0] = 0;
|
|
if (upeek(tcp->pid, PT_R12, &sp) < 0)
|
|
return 0;
|
|
if (umove(tcp, sp + 16 + SIGFRAME_SC_OFFSET, &sc) < 0)
|
|
return 0;
|
|
tcp->u_arg[0] = 1;
|
|
memcpy(tcp->u_arg + 1, &sc.sc_mask, sizeof(sc.sc_mask));
|
|
}
|
|
else {
|
|
sigset_t sigm;
|
|
|
|
memcpy(&sigm, tcp->u_arg + 1, sizeof (sigm));
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#else /* !IA64 */
|
|
#ifdef POWERPC
|
|
long esp;
|
|
struct sigcontext_struct sc;
|
|
|
|
if (entering(tcp)) {
|
|
tcp->u_arg[0] = 0;
|
|
if (upeek(tcp->pid, 4*PT_R1, &esp) < 0)
|
|
return 0;
|
|
if (umove(tcp, esp, &sc) < 0)
|
|
return 0;
|
|
tcp->u_arg[0] = 1;
|
|
tcp->u_arg[1] = sc.oldmask;
|
|
}
|
|
else {
|
|
sigset_t sigm;
|
|
long_to_sigset(tcp->u_arg[1], &sigm);
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#else /* !POWERPC */
|
|
#ifdef M68K
|
|
long usp;
|
|
struct sigcontext sc;
|
|
|
|
if (entering(tcp)) {
|
|
tcp->u_arg[0] = 0;
|
|
if (upeek(tcp->pid, 4*PT_USP, &usp) < 0)
|
|
return 0;
|
|
if (umove(tcp, usp, &sc) < 0)
|
|
return 0;
|
|
tcp->u_arg[0] = 1;
|
|
tcp->u_arg[1] = sc.sc_mask;
|
|
}
|
|
else {
|
|
sigset_t sigm;
|
|
long_to_sigset(tcp->u_arg[1], &sigm);
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#else /* !M68K */
|
|
#ifdef ALPHA
|
|
long fp;
|
|
struct sigcontext_struct sc;
|
|
|
|
if (entering(tcp)) {
|
|
tcp->u_arg[0] = 0;
|
|
if (upeek(tcp->pid, REG_FP, &fp) < 0)
|
|
return 0;
|
|
if (umove(tcp, fp, &sc) < 0)
|
|
return 0;
|
|
tcp->u_arg[0] = 1;
|
|
tcp->u_arg[1] = sc.sc_mask;
|
|
}
|
|
else {
|
|
sigset_t sigm;
|
|
long_to_sigset(tcp->u_arg[1], &sigm);
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#else
|
|
#ifdef SPARC
|
|
long i1;
|
|
struct regs regs;
|
|
m_siginfo_t si;
|
|
|
|
if(ptrace(PTRACE_GETREGS, tcp->pid, (char *)®s, 0) < 0) {
|
|
perror("sigreturn: PTRACE_GETREGS ");
|
|
return 0;
|
|
}
|
|
if(entering(tcp)) {
|
|
tcp->u_arg[0] = 0;
|
|
i1 = regs.r_o1;
|
|
if(umove(tcp, i1, &si) < 0) {
|
|
perror("sigreturn: umove ");
|
|
return 0;
|
|
}
|
|
tcp->u_arg[0] = 1;
|
|
tcp->u_arg[1] = si.si_mask;
|
|
} else {
|
|
sigset_t sigm;
|
|
long_to_sigset(tcp->u_arg[1], &sigm);
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if(tcp->u_arg[0] == 0)
|
|
return 0;
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#else
|
|
#ifdef MIPS
|
|
long sp;
|
|
struct sigcontext sc;
|
|
|
|
if(entering(tcp)) {
|
|
tcp->u_arg[0] = 0;
|
|
if (upeek(tcp->pid, REG_SP, &sp) < 0)
|
|
return 0;
|
|
if (umove(tcp, sp, &sc) < 0)
|
|
return 0;
|
|
tcp->u_arg[0] = 1;
|
|
tcp->u_arg[1] = sc.sc_sigset;
|
|
} else {
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if(tcp->u_arg[0] == 0)
|
|
return 0;
|
|
tcp->auxstr = sprintsigmask("mask now ", tcp->u_arg[1]);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#endif /* MIPS */
|
|
#endif /* SPARC */
|
|
#endif /* ALPHA */
|
|
#endif /* !M68K */
|
|
#endif /* !POWERPC */
|
|
#endif /* !IA64 */
|
|
#endif /* !I386 */
|
|
#endif /* S390 */
|
|
}
|
|
|
|
int
|
|
sys_siggetmask(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
if (exiting(tcp)) {
|
|
sigset_t sigm;
|
|
long_to_sigset(tcp->u_rval, &sigm);
|
|
tcp->auxstr = sprintsigmask("mask ", &sigm, 0);
|
|
}
|
|
return RVAL_HEX | RVAL_STR;
|
|
}
|
|
|
|
int
|
|
sys_sigsuspend(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
if (entering(tcp)) {
|
|
sigset_t sigm;
|
|
long_to_sigset(tcp->u_arg[2], &sigm);
|
|
#if 0
|
|
/* first two are not really arguments, but print them anyway */
|
|
/* nevermind, they are an anachronism now, too bad... */
|
|
tprintf("%d, %#x, ", tcp->u_arg[0], tcp->u_arg[1]);
|
|
#endif
|
|
printsigmask(&sigm, 0);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#endif /* LINUX */
|
|
|
|
#if defined(SVR4) || defined(FREEBSD)
|
|
|
|
int
|
|
sys_sigsuspend(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
sigset_t sigset;
|
|
|
|
if (entering(tcp)) {
|
|
if (umove(tcp, tcp->u_arg[0], &sigset) < 0)
|
|
tprintf("[?]");
|
|
else
|
|
printsigmask(&sigset, 0);
|
|
}
|
|
return 0;
|
|
}
|
|
#ifndef FREEBSD
|
|
static struct xlat ucontext_flags[] = {
|
|
{ UC_SIGMASK, "UC_SIGMASK" },
|
|
{ UC_STACK, "UC_STACK" },
|
|
{ UC_CPU, "UC_CPU" },
|
|
#ifdef UC_FPU
|
|
{ UC_FPU, "UC_FPU" },
|
|
#endif
|
|
#ifdef UC_INTR
|
|
{ UC_INTR, "UC_INTR" },
|
|
#endif
|
|
{ 0, NULL },
|
|
};
|
|
#endif /* !FREEBSD */
|
|
#endif /* SVR4 || FREEBSD */
|
|
|
|
#if defined SVR4 || defined LINUX || defined FREEBSD
|
|
#if defined LINUX && !defined SS_ONSTACK
|
|
#define SS_ONSTACK 1
|
|
#define SS_DISABLE 2
|
|
#if __GLIBC_MINOR__ == 0
|
|
typedef struct
|
|
{
|
|
__ptr_t ss_sp;
|
|
int ss_flags;
|
|
size_t ss_size;
|
|
} stack_t;
|
|
#endif
|
|
#endif
|
|
#ifdef FREEBSD
|
|
#define stack_t struct sigaltstack
|
|
#endif
|
|
|
|
static struct xlat sigaltstack_flags[] = {
|
|
{ SS_ONSTACK, "SS_ONSTACK" },
|
|
{ SS_DISABLE, "SS_DISABLE" },
|
|
{ 0, NULL },
|
|
};
|
|
#endif
|
|
|
|
#ifdef SVR4
|
|
static void
|
|
printcontext(tcp, ucp)
|
|
struct tcb *tcp;
|
|
ucontext_t *ucp;
|
|
{
|
|
tprintf("{");
|
|
if (!abbrev(tcp)) {
|
|
tprintf("uc_flags=");
|
|
if (!printflags(ucontext_flags, ucp->uc_flags))
|
|
tprintf("0");
|
|
tprintf(", uc_link=%#lx, ", (unsigned long) ucp->uc_link);
|
|
}
|
|
tprintf("uc_sigmask=");
|
|
printsigmask(ucp->uc_sigmask, 0);
|
|
if (!abbrev(tcp)) {
|
|
tprintf(", uc_stack={ss_sp=%#lx, ss_size=%d, ss_flags=",
|
|
(unsigned long) ucp->uc_stack.ss_sp,
|
|
ucp->uc_stack.ss_size);
|
|
if (!printflags(sigaltstack_flags, ucp->uc_stack.ss_flags))
|
|
tprintf("0");
|
|
tprintf("}");
|
|
}
|
|
tprintf(", ...}");
|
|
}
|
|
|
|
int
|
|
sys_getcontext(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
ucontext_t uc;
|
|
|
|
if (exiting(tcp)) {
|
|
if (tcp->u_error)
|
|
tprintf("%#lx", tcp->u_arg[0]);
|
|
else if (!tcp->u_arg[0])
|
|
tprintf("NULL");
|
|
else if (umove(tcp, tcp->u_arg[0], &uc) < 0)
|
|
tprintf("{...}");
|
|
else
|
|
printcontext(tcp, &uc);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sys_setcontext(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
ucontext_t uc;
|
|
|
|
if (entering(tcp)) {
|
|
if (!tcp->u_arg[0])
|
|
tprintf("NULL");
|
|
else if (umove(tcp, tcp->u_arg[0], &uc) < 0)
|
|
tprintf("{...}");
|
|
else
|
|
printcontext(tcp, &uc);
|
|
}
|
|
else {
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
return RVAL_NONE;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#endif /* SVR4 */
|
|
|
|
#if defined(LINUX) || defined(FREEBSD)
|
|
|
|
static int
|
|
print_stack_t(tcp, addr)
|
|
struct tcb *tcp;
|
|
unsigned long addr;
|
|
{
|
|
stack_t ss;
|
|
if (umove(tcp, addr, &ss) < 0)
|
|
return -1;
|
|
tprintf("{ss_sp=%#lx, ss_flags=", (unsigned long) ss.ss_sp);
|
|
if (!printflags(sigaltstack_flags, ss.ss_flags))
|
|
tprintf("0");
|
|
tprintf(", ss_size=%lu}", (unsigned long) ss.ss_size);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sys_sigaltstack(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
if (entering(tcp)) {
|
|
if (tcp->u_arg[0] == 0)
|
|
tprintf("NULL");
|
|
else if (print_stack_t(tcp, tcp->u_arg[0]) < 0)
|
|
return -1;
|
|
}
|
|
else {
|
|
tprintf(", ");
|
|
if (tcp->u_arg[1] == 0)
|
|
tprintf("NULL");
|
|
else if (print_stack_t(tcp, tcp->u_arg[1]) < 0)
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#ifdef HAVE_SIGACTION
|
|
|
|
int
|
|
sys_sigprocmask(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
#ifdef ALPHA
|
|
if (entering(tcp)) {
|
|
printxval(sigprocmaskcmds, tcp->u_arg[0], "SIG_???");
|
|
tprintf(", ");
|
|
printsigmask(tcp->u_arg[1], 0);
|
|
}
|
|
else if (!syserror(tcp)) {
|
|
tcp->auxstr = sprintsigmask("old mask ", tcp->u_rval, 0);
|
|
return RVAL_HEX | RVAL_STR;
|
|
}
|
|
#else /* !ALPHA */
|
|
sigset_t sigset;
|
|
|
|
if (entering(tcp)) {
|
|
#ifdef SVR4
|
|
if (tcp->u_arg[0] == 0)
|
|
tprintf("0");
|
|
else
|
|
#endif /* SVR4 */
|
|
printxval(sigprocmaskcmds, tcp->u_arg[0], "SIG_???");
|
|
tprintf(", ");
|
|
if (!tcp->u_arg[1])
|
|
tprintf("NULL, ");
|
|
else if (copy_sigset(tcp, tcp->u_arg[1], &sigset) < 0)
|
|
tprintf("%#lx, ", tcp->u_arg[1]);
|
|
else {
|
|
printsigmask(&sigset, 0);
|
|
tprintf(", ");
|
|
}
|
|
}
|
|
else {
|
|
if (!tcp->u_arg[2])
|
|
tprintf("NULL");
|
|
else if (syserror(tcp))
|
|
tprintf("%#lx", tcp->u_arg[2]);
|
|
else if (copy_sigset(tcp, tcp->u_arg[2], &sigset) < 0)
|
|
tprintf("[?]");
|
|
else
|
|
printsigmask(&sigset, 0);
|
|
}
|
|
#endif /* !ALPHA */
|
|
return 0;
|
|
}
|
|
|
|
#endif /* HAVE_SIGACTION */
|
|
|
|
int
|
|
sys_kill(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
if (entering(tcp)) {
|
|
tprintf("%ld, %s", tcp->u_arg[0], signame(tcp->u_arg[1]));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sys_killpg(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
return sys_kill(tcp);
|
|
}
|
|
|
|
int
|
|
sys_sigpending(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
sigset_t sigset;
|
|
|
|
if (exiting(tcp)) {
|
|
if (syserror(tcp))
|
|
tprintf("%#lx", tcp->u_arg[0]);
|
|
else if (copy_sigset(tcp, tcp->u_arg[0], &sigset) < 0)
|
|
tprintf("[?]");
|
|
else
|
|
printsigmask(&sigset, 0);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#ifdef LINUX
|
|
|
|
int
|
|
sys_rt_sigprocmask(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
sigset_t sigset;
|
|
|
|
/* Note: arg[3] is the length of the sigset. */
|
|
if (entering(tcp)) {
|
|
printxval(sigprocmaskcmds, tcp->u_arg[0], "SIG_???");
|
|
tprintf(", ");
|
|
if (!tcp->u_arg[1])
|
|
tprintf("NULL, ");
|
|
else if (copy_sigset_len(tcp, tcp->u_arg[1], &sigset, tcp->u_arg[3]) < 0)
|
|
tprintf("%#lx, ", tcp->u_arg[1]);
|
|
else {
|
|
printsigmask(&sigset, 1);
|
|
tprintf(", ");
|
|
}
|
|
}
|
|
else {
|
|
if (!tcp->u_arg[2])
|
|
|
|
tprintf("NULL");
|
|
else if (syserror(tcp))
|
|
tprintf("%#lx", tcp->u_arg[2]);
|
|
else if (copy_sigset_len(tcp, tcp->u_arg[2], &sigset, tcp->u_arg[3]) < 0)
|
|
tprintf("[?]");
|
|
else
|
|
printsigmask(&sigset, 1);
|
|
tprintf(", %lu", tcp->u_arg[3]);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#if __GLIBC_MINOR__ < 1
|
|
/* Type for data associated with a signal. */
|
|
typedef union sigval
|
|
{
|
|
int sival_int;
|
|
void *sival_ptr;
|
|
} sigval_t;
|
|
|
|
# define __SI_MAX_SIZE 128
|
|
# define __SI_PAD_SIZE ((__SI_MAX_SIZE / sizeof (int)) - 3)
|
|
|
|
typedef struct siginfo
|
|
{
|
|
int si_signo; /* Signal number. */
|
|
int si_errno; /* If non-zero, an errno value associated with
|
|
this signal, as defined in <errno.h>. */
|
|
int si_code; /* Signal code. */
|
|
|
|
union
|
|
{
|
|
int _pad[__SI_PAD_SIZE];
|
|
|
|
/* kill(). */
|
|
struct
|
|
{
|
|
__pid_t si_pid; /* Sending process ID. */
|
|
__uid_t si_uid; /* Real user ID of sending process. */
|
|
} _kill;
|
|
|
|
/* POSIX.1b timers. */
|
|
struct
|
|
{
|
|
unsigned int _timer1;
|
|
unsigned int _timer2;
|
|
} _timer;
|
|
|
|
/* POSIX.1b signals. */
|
|
struct
|
|
{
|
|
__pid_t si_pid; /* Sending process ID. */
|
|
__uid_t si_uid; /* Real user ID of sending process. */
|
|
sigval_t si_sigval; /* Signal value. */
|
|
} _rt;
|
|
|
|
/* SIGCHLD. */
|
|
struct
|
|
{
|
|
__pid_t si_pid; /* Which child. */
|
|
int si_status; /* Exit value or signal. */
|
|
__clock_t si_utime;
|
|
__clock_t si_stime;
|
|
} _sigchld;
|
|
|
|
/* SIGILL, SIGFPE, SIGSEGV, SIGBUS. */
|
|
struct
|
|
{
|
|
void *si_addr; /* Faulting insn/memory ref. */
|
|
} _sigfault;
|
|
|
|
/* SIGPOLL. */
|
|
struct
|
|
{
|
|
int si_band; /* Band event for SIGPOLL. */
|
|
int si_fd;
|
|
} _sigpoll;
|
|
} _sifields;
|
|
} siginfo_t;
|
|
#endif
|
|
|
|
/* Structure describing the action to be taken when a signal arrives. */
|
|
struct new_sigaction
|
|
{
|
|
union
|
|
{
|
|
__sighandler_t __sa_handler;
|
|
void (*__sa_sigaction) (int, siginfo_t *, void *);
|
|
}
|
|
__sigaction_handler;
|
|
unsigned long sa_flags;
|
|
void (*sa_restorer) (void);
|
|
unsigned long int sa_mask[2];
|
|
};
|
|
|
|
|
|
int
|
|
sys_rt_sigaction(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
struct new_sigaction sa;
|
|
sigset_t sigset;
|
|
long addr;
|
|
|
|
if (entering(tcp)) {
|
|
printsignal(tcp->u_arg[0]);
|
|
tprintf(", ");
|
|
addr = tcp->u_arg[1];
|
|
} else
|
|
addr = tcp->u_arg[2];
|
|
if (addr == 0)
|
|
tprintf("NULL");
|
|
else if (!verbose(tcp))
|
|
tprintf("%#lx", addr);
|
|
else if (umove(tcp, addr, &sa) < 0)
|
|
tprintf("{...}");
|
|
else {
|
|
switch ((long) sa.__sigaction_handler.__sa_handler) {
|
|
case (long) SIG_ERR:
|
|
tprintf("{SIG_ERR}");
|
|
break;
|
|
case (long) SIG_DFL:
|
|
tprintf("{SIG_DFL}");
|
|
break;
|
|
case (long) SIG_IGN:
|
|
tprintf("{SIG_IGN}");
|
|
break;
|
|
default:
|
|
tprintf("{%#lx, ",
|
|
(long) sa.__sigaction_handler.__sa_handler);
|
|
sigemptyset(&sigset);
|
|
#ifdef LINUXSPARC
|
|
if (tcp->u_arg[4] <= sizeof(sigset))
|
|
memcpy(&sigset, &sa.sa_mask, tcp->u_arg[4]);
|
|
#else
|
|
if (tcp->u_arg[3] <= sizeof(sigset))
|
|
memcpy(&sigset, &sa.sa_mask, tcp->u_arg[3]);
|
|
#endif
|
|
else
|
|
memcpy(&sigset, &sa.sa_mask, sizeof(sigset));
|
|
printsigmask(&sigset, 1);
|
|
tprintf(", ");
|
|
if (!printflags(sigact_flags, sa.sa_flags))
|
|
tprintf("0");
|
|
tprintf("}");
|
|
}
|
|
}
|
|
if (entering(tcp))
|
|
tprintf(", ");
|
|
else
|
|
#ifdef LINUXSPARC
|
|
tprintf(", %#lx, %lu", tcp->u_arg[3], tcp->u_arg[4]);
|
|
#elif defined(ALPHA)
|
|
tprintf(", %lu, %#lx", tcp->u_arg[3], tcp->u_arg[4]);
|
|
#else
|
|
tprintf(", %lu", addr = tcp->u_arg[3]);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sys_rt_sigpending(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
sigset_t sigset;
|
|
|
|
if (exiting(tcp)) {
|
|
if (syserror(tcp))
|
|
tprintf("%#lx", tcp->u_arg[0]);
|
|
else if (copy_sigset_len(tcp, tcp->u_arg[0],
|
|
&sigset, tcp->u_arg[1]) < 0)
|
|
tprintf("[?]");
|
|
else
|
|
printsigmask(&sigset, 1);
|
|
}
|
|
return 0;
|
|
}
|
|
int
|
|
sys_rt_sigsuspend(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
if (entering(tcp)) {
|
|
sigset_t sigm;
|
|
if (copy_sigset_len(tcp, tcp->u_arg[0], &sigm, tcp->u_arg[1]) < 0)
|
|
tprintf("[?]");
|
|
else
|
|
printsigmask(&sigm, 1);
|
|
}
|
|
return 0;
|
|
}
|
|
#ifndef ILL_ILLOPC
|
|
#define ILL_ILLOPC 1 /* illegal opcode */
|
|
#define ILL_ILLOPN 2 /* illegal operand */
|
|
#define ILL_ILLADR 3 /* illegal addressing mode */
|
|
#define ILL_ILLTRP 4 /* illegal trap */
|
|
#define ILL_PRVOPC 5 /* privileged opcode */
|
|
#define ILL_PRVREG 6 /* privileged register */
|
|
#define ILL_COPROC 7 /* coprocessor error */
|
|
#define ILL_BADSTK 8 /* internal stack error */
|
|
#define FPE_INTDIV 1 /* integer divide by zero */
|
|
#define FPE_INTOVF 2 /* integer overflow */
|
|
#define FPE_FLTDIV 3 /* floating point divide by zero */
|
|
#define FPE_FLTOVF 4 /* floating point overflow */
|
|
#define FPE_FLTUND 5 /* floating point underflow */
|
|
#define FPE_FLTRES 6 /* floating point inexact result */
|
|
#define FPE_FLTINV 7 /* floating point invalid operation */
|
|
#define FPE_FLTSUB 8 /* subscript out of range */
|
|
#define SEGV_MAPERR 1 /* address not mapped to object */
|
|
#define SEGV_ACCERR 2 /* invalid permissions for mapped object */
|
|
#define BUS_ADRALN 1 /* invalid address alignment */
|
|
#define BUS_ADRERR 2 /* non-existant physical address */
|
|
#define BUS_OBJERR 3 /* object specific hardware error */
|
|
#define TRAP_BRKPT 1 /* process breakpoint */
|
|
#define TRAP_TRACE 2 /* process trace trap */
|
|
#define CLD_EXITED 1 /* child has exited */
|
|
#define CLD_KILLED 2 /* child was killed */
|
|
#define CLD_DUMPED 3 /* child terminated abnormally */
|
|
#define CLD_TRAPPED 4 /* traced child has trapped */
|
|
#define CLD_STOPPED 5 /* child has stopped */
|
|
#define CLD_CONTINUED 6 /* stopped child has continued */
|
|
#define POLL_IN 1 /* data input available */
|
|
#define POLL_OUT 2 /* output buffers available */
|
|
#define POLL_MSG 3 /* input message available */
|
|
#define POLL_ERR 4 /* i/o error */
|
|
#define POLL_PRI 5 /* high priority input available */
|
|
#define POLL_HUP 6 /* device disconnected */
|
|
#define SI_USER 0 /* sent by kill, sigsend, raise */
|
|
#define SI_QUEUE -1 /* sent by sigqueue */
|
|
#define SI_TIMER -2 /* sent by timer expiration */
|
|
#define SI_MESGQ -3 /* sent by real time mesq state change */
|
|
#define SI_ASYNCIO -4 /* sent by AIO completion */
|
|
#else
|
|
#undef si_pid
|
|
#undef si_uid
|
|
#undef si_status
|
|
#undef si_utime
|
|
#undef si_stime
|
|
#undef si_value
|
|
#undef si_int
|
|
#undef si_ptr
|
|
#undef si_addr
|
|
#undef si_band
|
|
#undef si_fd
|
|
#endif
|
|
|
|
static struct xlat sigill_flags[] = {
|
|
{ILL_ILLOPC, "ILL_ILLOPC"},
|
|
{ILL_ILLOPN, "ILL_ILLOPN"},
|
|
{ILL_ILLADR, "ILL_ILLADR"},
|
|
{ILL_ILLTRP, "ILL_ILLTRP"},
|
|
{ILL_PRVOPC, "ILL_PRVOPC"},
|
|
{ILL_PRVREG, "ILL_PRVREG"},
|
|
{ILL_COPROC, "ILL_COPROC"},
|
|
{ILL_BADSTK, "ILL_BADSTK"},
|
|
{0, NULL}
|
|
};
|
|
|
|
static struct xlat sigfpe_flags[] = {
|
|
{FPE_INTDIV, "FPE_INTDIV"},
|
|
{FPE_INTOVF, "FPE_INTOVF"},
|
|
{FPE_FLTDIV, "FPE_FLTDIV"},
|
|
{FPE_FLTOVF, "FPE_FLTOVF"},
|
|
{FPE_FLTUND, "FPE_FLTUND"},
|
|
{FPE_FLTRES, "FPE_FLTRES"},
|
|
{FPE_FLTINV, "FPE_FLTINV"},
|
|
{FPE_FLTSUB, "FPE_FLTSUB"},
|
|
{0, NULL}
|
|
};
|
|
|
|
static struct xlat sigsegv_flags[] = {
|
|
{SEGV_MAPERR, "SEGV_MAPERR"},
|
|
{SEGV_ACCERR, "SEGV_ACCERR"},
|
|
{0, NULL}
|
|
};
|
|
|
|
static struct xlat sigbus_flags[] = {
|
|
{BUS_ADRALN, "BUS_ADRALN"},
|
|
{BUS_ADRERR, "BUS_ADRERR"},
|
|
{BUS_OBJERR, "BUS_OBJERR"},
|
|
{0, NULL}
|
|
};
|
|
|
|
static struct xlat sigtrap_flags[] = {
|
|
{TRAP_BRKPT, "TRAP_BRKPT"},
|
|
{TRAP_TRACE, "TRAP_TRACE"},
|
|
{0, NULL}
|
|
};
|
|
|
|
static struct xlat sigchld_flags[] = {
|
|
{CLD_EXITED, "CLD_EXITED"},
|
|
{CLD_KILLED, "CLD_KILLED"},
|
|
{CLD_DUMPED, "CLD_DUMPED"},
|
|
{CLD_TRAPPED, "CLD_TRAPPED"},
|
|
{CLD_STOPPED, "CLD_STOPPED"},
|
|
{CLD_CONTINUED, "CLD_CONTINUED"},
|
|
{0, NULL}
|
|
};
|
|
|
|
static struct xlat sigpoll_flags[] = {
|
|
{POLL_IN, "POLL_IN"},
|
|
{POLL_OUT, "POLL_OUT"},
|
|
{POLL_MSG, "POLL_MSG"},
|
|
{POLL_ERR, "POLL_ERR"},
|
|
{POLL_PRI, "POLL_PRI"},
|
|
{POLL_HUP, "POLL_HUP"},
|
|
{0, NULL}
|
|
};
|
|
|
|
static struct xlat siginfo_flags[] = {
|
|
{SI_USER, "SI_USER"},
|
|
{SI_QUEUE, "SI_QUEUE"},
|
|
{SI_TIMER, "SI_TIMER"},
|
|
{SI_MESGQ, "SI_MESGQ"},
|
|
{SI_ASYNCIO, "SI_ASYNCIO"},
|
|
{0, NULL}
|
|
};
|
|
|
|
static void
|
|
printsiginfo(tcp, si)
|
|
struct tcb *tcp;
|
|
siginfo_t *si;
|
|
{
|
|
tprintf("{si_signo=");
|
|
printsignal(si->si_signo);
|
|
tprintf(", si_errno=%d, si_code=", si->si_errno);
|
|
switch(si->si_signo)
|
|
{
|
|
case SIGILL:
|
|
if (!printflags(sigill_flags, si->si_code))
|
|
tprintf("%d /* ILL_??? */", si->si_code);
|
|
tprintf(", si_addr=%lx",
|
|
(unsigned long) si->_sifields._sigfault.si_addr);
|
|
break;
|
|
case SIGFPE:
|
|
if (!printflags(sigfpe_flags, si->si_code))
|
|
tprintf("%d /* FPE_??? */", si->si_code);
|
|
tprintf(", si_addr=%lx",
|
|
(unsigned long) si->_sifields._sigfault.si_addr);
|
|
break;
|
|
case SIGSEGV:
|
|
if (!printflags(sigsegv_flags, si->si_code))
|
|
tprintf("%d /* SEGV_??? */", si->si_code);
|
|
tprintf(", si_addr=%lx",
|
|
(unsigned long) si->_sifields._sigfault.si_addr);
|
|
break;
|
|
case SIGBUS:
|
|
if (!printflags(sigbus_flags, si->si_code))
|
|
tprintf("%d /* BUS_??? */", si->si_code);
|
|
tprintf(", si_addr=%lx",
|
|
(unsigned long) si->_sifields._sigfault.si_addr);
|
|
break;
|
|
case SIGTRAP:
|
|
if (!printflags(sigtrap_flags, si->si_code))
|
|
tprintf("%d /* TRAP_??? */", si->si_code);
|
|
break;
|
|
case SIGCHLD:
|
|
if (!printflags(sigchld_flags, si->si_code))
|
|
tprintf("%d /* CLD_??? */", si->si_code);
|
|
if (!verbose(tcp))
|
|
tprintf(", ...");
|
|
else
|
|
tprintf(", si_pid=%d, si_uid=%d, si_status=%d, si_utime=%lu, si_stime=%lu",
|
|
si->_sifields._kill.si_pid,
|
|
si->_sifields._kill.si_uid,
|
|
si->_sifields._sigchld.si_status,
|
|
si->_sifields._sigchld.si_utime,
|
|
si->_sifields._sigchld.si_stime);
|
|
break;
|
|
case SIGPOLL:
|
|
if (!printflags(sigpoll_flags, si->si_code))
|
|
tprintf("%d /* POLL_??? */", si->si_code);
|
|
if (si->si_code == POLL_IN
|
|
|| si->si_code == POLL_OUT
|
|
|| si->si_code == POLL_MSG)
|
|
tprintf(", si_bind=%lu, si_fd=%d",
|
|
(unsigned long) si->_sifields._sigpoll.si_band,
|
|
si->_sifields._sigpoll.si_fd);
|
|
break;
|
|
default:
|
|
if (!printflags(siginfo_flags, si->si_code))
|
|
tprintf("%d /* SI_??? */", si->si_code);
|
|
tprintf(", si_pid=%lu, si_uid=%lu, si_value={",
|
|
(unsigned long) si->_sifields._rt.si_pid,
|
|
(unsigned long) si->_sifields._rt.si_uid);
|
|
if (!verbose(tcp))
|
|
tprintf("...");
|
|
else {
|
|
tprintf("sival_int=%u, sival_ptr=%#lx",
|
|
si->_sifields._rt.si_sigval.sival_int,
|
|
(unsigned long) si->_sifields._rt.si_sigval.sival_ptr);
|
|
}
|
|
tprintf("}");
|
|
break;
|
|
}
|
|
tprintf("}");
|
|
}
|
|
|
|
int
|
|
sys_rt_sigqueueinfo(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
if (entering(tcp)) {
|
|
siginfo_t si;
|
|
tprintf("%lu, ", tcp->u_arg[0]);
|
|
printsignal(tcp->u_arg[1]);
|
|
tprintf(", ");
|
|
if (umove(tcp, tcp->u_arg[2], &si) < 0)
|
|
tprintf("%#lx", tcp->u_arg[2]);
|
|
else
|
|
printsiginfo(&si);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int sys_rt_sigtimedwait(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
if (entering(tcp)) {
|
|
sigset_t sigset;
|
|
|
|
if (copy_sigset_len(tcp, tcp->u_arg[0],
|
|
&sigset, tcp->u_arg[3]) < 0)
|
|
tprintf("[?]");
|
|
else
|
|
printsigmask(&sigset, 1);
|
|
tprintf(", ");
|
|
}
|
|
else {
|
|
if (syserror(tcp))
|
|
tprintf("%#lx", tcp->u_arg[0]);
|
|
else {
|
|
siginfo_t si;
|
|
if (umove(tcp, tcp->u_arg[1], &si) < 0)
|
|
tprintf("%#lx", tcp->u_arg[1]);
|
|
else
|
|
printsiginfo(&si);
|
|
/* XXX For now */
|
|
tprintf(", %#lx", tcp->u_arg[2]);
|
|
tprintf(", %d", (int) tcp->u_arg[3]);
|
|
}
|
|
}
|
|
return 0;
|
|
};
|
|
|
|
#endif /* LINUX */
|
|
|