1960 lines
41 KiB
C
1960 lines
41 KiB
C
/*
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* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
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* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
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* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
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* Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
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* Copyright (c) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
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* Linux for s390 port by D.J. Barrow
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* <barrow_dj@mail.yahoo.com,djbarrow@de.ibm.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id$
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*/
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#include "defs.h"
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#include <signal.h>
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#include <sys/user.h>
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#include <fcntl.h>
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#ifdef SVR4
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#include <sys/ucontext.h>
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#endif /* SVR4 */
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#ifdef HAVE_SYS_REG_H
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# include <sys/reg.h>
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#ifndef PTRACE_PEEKUSR
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# define PTRACE_PEEKUSR PTRACE_PEEKUSER
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#endif
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#ifndef PTRACE_POKEUSR
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# define PTRACE_POKEUSR PTRACE_POKEUSER
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#endif
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#elif defined(HAVE_LINUX_PTRACE_H)
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#undef PTRACE_SYSCALL
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# ifdef HAVE_STRUCT_IA64_FPREG
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# define ia64_fpreg XXX_ia64_fpreg
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# endif
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# ifdef HAVE_STRUCT_PT_ALL_USER_REGS
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# define pt_all_user_regs XXX_pt_all_user_regs
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# endif
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#include <linux/ptrace.h>
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# undef ia64_fpreg
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# undef pt_all_user_regs
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#endif
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#ifdef LINUX
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#ifdef IA64
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# include <asm/ptrace_offsets.h>
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#endif /* !IA64 */
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#if HAVE_ASM_REG_H
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# if defined (SPARC) || defined (SPARC64)
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# define fpq kernel_fpq
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# define fq kernel_fq
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# define fpu kernel_fpu
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# endif
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# include <asm/reg.h>
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# if defined (SPARC) || defined (SPARC64)
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# undef fpq
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# undef fq
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# undef fpu
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# endif
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#if defined (LINUX) && defined (SPARC64)
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# define r_pc r_tpc
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# undef PTRACE_GETREGS
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# define PTRACE_GETREGS PTRACE_GETREGS64
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# undef PTRACE_SETREGS
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# define PTRACE_SETREGS PTRACE_SETREGS64
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#endif /* LINUX && SPARC64 */
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#endif /* HAVE_ASM_REG_H */
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#if defined (SPARC) || defined (SPARC64)
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typedef struct {
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struct regs si_regs;
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int si_mask;
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} m_siginfo_t;
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#elif defined HAVE_ASM_SIGCONTEXT_H
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#if !defined(IA64) && !defined(X86_64)
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#include <asm/sigcontext.h>
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#endif /* !IA64 && !X86_64 */
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#else /* !HAVE_ASM_SIGCONTEXT_H */
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#ifdef I386
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struct sigcontext_struct {
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unsigned short gs, __gsh;
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unsigned short fs, __fsh;
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unsigned short es, __esh;
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unsigned short ds, __dsh;
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unsigned long edi;
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unsigned long esi;
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unsigned long ebp;
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unsigned long esp;
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unsigned long ebx;
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unsigned long edx;
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unsigned long ecx;
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unsigned long eax;
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unsigned long trapno;
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unsigned long err;
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unsigned long eip;
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unsigned short cs, __csh;
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unsigned long eflags;
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unsigned long esp_at_signal;
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unsigned short ss, __ssh;
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unsigned long i387;
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unsigned long oldmask;
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unsigned long cr2;
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};
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#else /* !I386 */
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#ifdef M68K
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struct sigcontext
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{
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unsigned long sc_mask;
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unsigned long sc_usp;
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unsigned long sc_d0;
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unsigned long sc_d1;
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unsigned long sc_a0;
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unsigned long sc_a1;
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unsigned short sc_sr;
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unsigned long sc_pc;
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unsigned short sc_formatvec;
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};
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#endif /* M68K */
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#endif /* !I386 */
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#endif /* !HAVE_ASM_SIGCONTEXT_H */
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#ifndef NSIG
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#define NSIG 32
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#endif
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#ifdef ARM
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#undef NSIG
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#define NSIG 32
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#endif
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#endif /* LINUX */
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const char *const signalent0[] = {
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#include "signalent.h"
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};
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const int nsignals0 = sizeof signalent0 / sizeof signalent0[0];
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#if SUPPORTED_PERSONALITIES >= 2
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const char *const signalent1[] = {
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#include "signalent1.h"
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};
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const int nsignals1 = sizeof signalent1 / sizeof signalent1[0];
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#endif /* SUPPORTED_PERSONALITIES >= 2 */
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#if SUPPORTED_PERSONALITIES >= 3
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const char *const signalent2[] = {
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#include "signalent2.h"
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};
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const int nsignals2 = sizeof signalent2 / sizeof signalent2[0];
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#endif /* SUPPORTED_PERSONALITIES >= 3 */
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const char *const *signalent;
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int nsignals;
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#if defined(SUNOS4) || defined(FREEBSD)
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static const struct xlat sigvec_flags[] = {
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{ SV_ONSTACK, "SV_ONSTACK" },
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{ SV_INTERRUPT, "SV_INTERRUPT" },
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{ SV_RESETHAND, "SV_RESETHAND" },
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{ SA_NOCLDSTOP, "SA_NOCLDSTOP" },
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{ 0, NULL },
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};
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#endif /* SUNOS4 || FREEBSD */
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#ifdef HAVE_SIGACTION
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#if defined LINUX && (defined I386 || defined X86_64)
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/* The libc headers do not define this constant since it should only be
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used by the implementation. So wwe define it here. */
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# ifndef SA_RESTORER
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# define SA_RESTORER 0x04000000
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# endif
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#endif
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static const struct xlat sigact_flags[] = {
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#ifdef SA_RESTORER
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{ SA_RESTORER, "SA_RESTORER" },
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#endif
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#ifdef SA_STACK
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{ SA_STACK, "SA_STACK" },
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#endif
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#ifdef SA_RESTART
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{ SA_RESTART, "SA_RESTART" },
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#endif
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#ifdef SA_INTERRUPT
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{ SA_INTERRUPT, "SA_INTERRUPT" },
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#endif
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#ifdef SA_NOMASK
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{ SA_NOMASK, "SA_NOMASK" },
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#endif
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#ifdef SA_ONESHOT
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{ SA_ONESHOT, "SA_ONESHOT" },
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#endif
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#ifdef SA_SIGINFO
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{ SA_SIGINFO, "SA_SIGINFO" },
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#endif
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#ifdef SA_RESETHAND
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{ SA_RESETHAND, "SA_RESETHAND" },
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#endif
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#ifdef SA_ONSTACK
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{ SA_ONSTACK, "SA_ONSTACK" },
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#endif
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#ifdef SA_NODEFER
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{ SA_NODEFER, "SA_NODEFER" },
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#endif
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#ifdef SA_NOCLDSTOP
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{ SA_NOCLDSTOP, "SA_NOCLDSTOP" },
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#endif
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#ifdef SA_NOCLDWAIT
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{ SA_NOCLDWAIT, "SA_NOCLDWAIT" },
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#endif
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#ifdef _SA_BSDCALL
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{ _SA_BSDCALL, "_SA_BSDCALL" },
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#endif
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{ 0, NULL },
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};
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static const struct xlat sigprocmaskcmds[] = {
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{ SIG_BLOCK, "SIG_BLOCK" },
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{ SIG_UNBLOCK, "SIG_UNBLOCK" },
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{ SIG_SETMASK, "SIG_SETMASK" },
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#ifdef SIG_SETMASK32
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{ SIG_SETMASK32,"SIG_SETMASK32" },
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#endif
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{ 0, NULL },
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};
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#endif /* HAVE_SIGACTION */
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/* Anonymous realtime signals. */
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/* Under glibc 2.1, SIGRTMIN et al are functions, but __SIGRTMIN is a
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constant. This is what we want. Otherwise, just use SIGRTMIN. */
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#ifdef SIGRTMIN
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#ifndef __SIGRTMIN
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#define __SIGRTMIN SIGRTMIN
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#define __SIGRTMAX SIGRTMAX /* likewise */
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#endif
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#endif
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const char *
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signame(sig)
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int sig;
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{
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static char buf[30];
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if (sig >= 0 && sig < nsignals) {
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return signalent[sig];
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#ifdef SIGRTMIN
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} else if (sig >= __SIGRTMIN && sig <= __SIGRTMAX) {
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sprintf(buf, "SIGRT_%ld", (long)(sig - __SIGRTMIN));
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return buf;
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#endif /* SIGRTMIN */
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} else {
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sprintf(buf, "%d", sig);
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return buf;
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}
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}
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#ifndef UNIXWARE
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static void
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long_to_sigset(l, s)
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long l;
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sigset_t *s;
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{
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sigemptyset(s);
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*(long *)s = l;
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}
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#endif
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static int
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copy_sigset_len(tcp, addr, s, len)
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struct tcb *tcp;
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long addr;
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sigset_t *s;
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int len;
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{
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if (len > sizeof(*s))
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len = sizeof(*s);
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sigemptyset(s);
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if (umoven(tcp, addr, len, (char *)s) < 0)
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return -1;
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return 0;
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}
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#ifdef LINUX
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/* Original sigset is unsigned long */
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#define copy_sigset(tcp, addr, s) copy_sigset_len(tcp, addr, s, sizeof(long))
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#else
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#define copy_sigset(tcp, addr, s) copy_sigset_len(tcp, addr, s, sizeof(sigset_t))
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#endif
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static char *
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sprintsigmask(s, mask, rt)
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char *s;
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sigset_t *mask;
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int rt; /* set might include realtime sigs */
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{
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int i, nsigs;
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int maxsigs;
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char *format;
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static char outstr[8 * sizeof(sigset_t) * 8];
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strcpy(outstr, s);
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s = outstr + strlen(outstr);
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nsigs = 0;
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maxsigs = nsignals;
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#ifdef __SIGRTMAX
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if (rt)
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maxsigs = __SIGRTMAX; /* instead */
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#endif
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for (i = 1; i < maxsigs; i++) {
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if (sigismember(mask, i) == 1)
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nsigs++;
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}
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if (nsigs >= nsignals * 2 / 3) {
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*s++ = '~';
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for (i = 1; i < maxsigs; i++) {
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switch (sigismember(mask, i)) {
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case 1:
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sigdelset(mask, i);
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break;
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case 0:
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sigaddset(mask, i);
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break;
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}
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}
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}
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format = "%s";
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*s++ = '[';
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for (i = 1; i < maxsigs; i++) {
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if (sigismember(mask, i) == 1) {
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/* real-time signals on solaris don't have
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* signalent entries
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*/
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if (i < nsignals) {
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sprintf(s, format, signalent[i] + 3);
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}
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#ifdef SIGRTMIN
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else if (i >= __SIGRTMIN && i <= __SIGRTMAX) {
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char tsig[40];
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sprintf(tsig, "RT_%u", i - __SIGRTMIN);
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sprintf(s, format, tsig);
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}
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#endif /* SIGRTMIN */
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else {
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char tsig[32];
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sprintf(tsig, "%u", i);
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sprintf(s, format, tsig);
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}
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s += strlen(s);
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format = " %s";
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}
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}
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*s++ = ']';
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*s = '\0';
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return outstr;
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}
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static void
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printsigmask(mask, rt)
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sigset_t *mask;
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int rt;
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{
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tprintf("%s", sprintsigmask("", mask, rt));
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}
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void
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printsignal(nr)
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int nr;
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{
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tprintf(signame(nr));
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}
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#ifdef LINUX
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#ifndef ILL_ILLOPC
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#define ILL_ILLOPC 1 /* illegal opcode */
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#define ILL_ILLOPN 2 /* illegal operand */
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#define ILL_ILLADR 3 /* illegal addressing mode */
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#define ILL_ILLTRP 4 /* illegal trap */
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#define ILL_PRVOPC 5 /* privileged opcode */
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#define ILL_PRVREG 6 /* privileged register */
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#define ILL_COPROC 7 /* coprocessor error */
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#define ILL_BADSTK 8 /* internal stack error */
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#define FPE_INTDIV 1 /* integer divide by zero */
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#define FPE_INTOVF 2 /* integer overflow */
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#define FPE_FLTDIV 3 /* floating point divide by zero */
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#define FPE_FLTOVF 4 /* floating point overflow */
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#define FPE_FLTUND 5 /* floating point underflow */
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#define FPE_FLTRES 6 /* floating point inexact result */
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#define FPE_FLTINV 7 /* floating point invalid operation */
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#define FPE_FLTSUB 8 /* subscript out of range */
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#define SEGV_MAPERR 1 /* address not mapped to object */
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#define SEGV_ACCERR 2 /* invalid permissions for mapped object */
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#define BUS_ADRALN 1 /* invalid address alignment */
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#define BUS_ADRERR 2 /* non-existant physical address */
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#define BUS_OBJERR 3 /* object specific hardware error */
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#define TRAP_BRKPT 1 /* process breakpoint */
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#define TRAP_TRACE 2 /* process trace trap */
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#define CLD_EXITED 1 /* child has exited */
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#define CLD_KILLED 2 /* child was killed */
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#define CLD_DUMPED 3 /* child terminated abnormally */
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#define CLD_TRAPPED 4 /* traced child has trapped */
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#define CLD_STOPPED 5 /* child has stopped */
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#define CLD_CONTINUED 6 /* stopped child has continued */
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#define POLL_IN 1 /* data input available */
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#define POLL_OUT 2 /* output buffers available */
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#define POLL_MSG 3 /* input message available */
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#define POLL_ERR 4 /* i/o error */
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#define POLL_PRI 5 /* high priority input available */
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#define POLL_HUP 6 /* device disconnected */
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#define SI_USER 0 /* sent by kill, sigsend, raise */
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#define SI_QUEUE -1 /* sent by sigqueue */
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#define SI_TIMER -2 /* sent by timer expiration */
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#define SI_MESGQ -3 /* sent by real time mesq state change */
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#define SI_ASYNCIO -4 /* sent by AIO completion */
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#define SI_SIGIO -5 /* Sent by SIGIO */
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#define SI_TKILL -6 /* Sent by tkill */
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#endif
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#if __GLIBC_MINOR__ < 1
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/* Type for data associated with a signal. */
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typedef union sigval
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{
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int sival_int;
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void *sival_ptr;
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} sigval_t;
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# define __SI_MAX_SIZE 128
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# define __SI_PAD_SIZE ((__SI_MAX_SIZE / sizeof (int)) - 3)
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typedef struct siginfo
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{
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int si_signo; /* Signal number. */
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int si_errno; /* If non-zero, an errno value associated with
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this signal, as defined in <errno.h>. */
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int si_code; /* Signal code. */
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union
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{
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int _pad[__SI_PAD_SIZE];
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/* kill(). */
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struct
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{
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__pid_t si_pid; /* Sending process ID. */
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__uid_t si_uid; /* Real user ID of sending process. */
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} _kill;
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/* POSIX.1b timers. */
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struct
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{
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unsigned int _timer1;
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unsigned int _timer2;
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} _timer;
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/* POSIX.1b signals. */
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struct
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{
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__pid_t si_pid; /* Sending process ID. */
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__uid_t si_uid; /* Real user ID of sending process. */
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sigval_t si_sigval; /* Signal value. */
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} _rt;
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/* SIGCHLD. */
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struct
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{
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__pid_t si_pid; /* Which child. */
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int si_status; /* Exit value or signal. */
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__clock_t si_utime;
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__clock_t si_stime;
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} _sigchld;
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/* SIGILL, SIGFPE, SIGSEGV, SIGBUS. */
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struct
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{
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void *si_addr; /* Faulting insn/memory ref. */
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} _sigfault;
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/* SIGPOLL. */
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struct
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{
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int si_band; /* Band event for SIGPOLL. */
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int si_fd;
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} _sigpoll;
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} _sifields;
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} siginfo_t;
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#define si_pid _sifields._kill.si_pid
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#define si_uid _sifields._kill.si_uid
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#define si_status _sifields._sigchld.si_status
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#define si_utime _sifields._sigchld.si_utime
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#define si_stime _sifields._sigchld.si_stime
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#define si_value _sifields._rt.si_sigval
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#define si_int _sifields._rt.si_sigval.sival_int
|
|
#define si_ptr _sifields._rt.si_sigval.sival_ptr
|
|
#define si_addr _sifields._sigfault.si_addr
|
|
#define si_band _sifields._sigpoll.si_band
|
|
#define si_fd _sifields._sigpoll.si_fd
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#if defined (SVR4) || defined (LINUX)
|
|
|
|
static const struct xlat siginfo_codes[] = {
|
|
#ifdef SI_NOINFO
|
|
{ SI_NOINFO, "SI_NOINFO" },
|
|
#endif
|
|
#ifdef SI_USER
|
|
{ SI_USER, "SI_USER" },
|
|
#endif
|
|
#ifdef SI_LWP
|
|
{ SI_LWP, "SI_LWP" },
|
|
#endif
|
|
#ifdef SI_QUEUE
|
|
{ SI_QUEUE, "SI_QUEUE" },
|
|
#endif
|
|
#ifdef SI_TIMER
|
|
{ SI_TIMER, "SI_TIMER" },
|
|
#endif
|
|
#ifdef SI_ASYNCIO
|
|
{ SI_ASYNCIO, "SI_ASYNCIO" },
|
|
#endif
|
|
#ifdef SI_MESGQ
|
|
{ SI_MESGQ, "SI_MESGQ" },
|
|
#endif
|
|
#ifdef SI_SIGIO
|
|
{ SI_SIGIO, "SI_SIGIO" },
|
|
#endif
|
|
#ifdef SI_TKILL
|
|
{ SI_TKILL, "SI_TKILL" },
|
|
#endif
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const struct xlat sigill_codes[] = {
|
|
{ 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 const struct xlat sigfpe_codes[] = {
|
|
{ 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 const struct xlat sigtrap_codes[] = {
|
|
{ TRAP_BRKPT, "TRAP_BRKPT" },
|
|
{ TRAP_TRACE, "TRAP_TRACE" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const struct xlat sigchld_codes[] = {
|
|
{ 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 const struct xlat sigpoll_codes[] = {
|
|
{ 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 const struct xlat sigprof_codes[] = {
|
|
#ifdef PROF_SIG
|
|
{ PROF_SIG, "PROF_SIG" },
|
|
#endif
|
|
{ 0, NULL },
|
|
};
|
|
|
|
#ifdef SIGEMT
|
|
static const struct xlat sigemt_codes[] = {
|
|
#ifdef EMT_TAGOVF
|
|
{ EMT_TAGOVF, "EMT_TAGOVF" },
|
|
#endif
|
|
{ 0, NULL },
|
|
};
|
|
#endif
|
|
|
|
static const struct xlat sigsegv_codes[] = {
|
|
{ SEGV_MAPERR, "SEGV_MAPERR" },
|
|
{ SEGV_ACCERR, "SEGV_ACCERR" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const struct xlat sigbus_codes[] = {
|
|
{ BUS_ADRALN, "BUS_ADRALN" },
|
|
{ BUS_ADRERR, "BUS_ADRERR" },
|
|
{ BUS_OBJERR, "BUS_OBJERR" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
void
|
|
printsiginfo(sip, verbose)
|
|
siginfo_t *sip;
|
|
int verbose;
|
|
{
|
|
const char *code;
|
|
|
|
if (sip->si_signo == 0) {
|
|
tprintf ("{}");
|
|
return;
|
|
}
|
|
tprintf("{si_signo=");
|
|
printsignal(sip->si_signo);
|
|
code = xlookup(siginfo_codes, sip->si_code);
|
|
if (!code) {
|
|
switch (sip->si_signo) {
|
|
case SIGTRAP:
|
|
code = xlookup(sigtrap_codes, sip->si_code);
|
|
break;
|
|
case SIGCHLD:
|
|
code = xlookup(sigchld_codes, sip->si_code);
|
|
break;
|
|
case SIGPOLL:
|
|
code = xlookup(sigpoll_codes, sip->si_code);
|
|
break;
|
|
case SIGPROF:
|
|
code = xlookup(sigprof_codes, sip->si_code);
|
|
break;
|
|
case SIGILL:
|
|
code = xlookup(sigill_codes, sip->si_code);
|
|
break;
|
|
#ifdef SIGEMT
|
|
case SIGEMT:
|
|
code = xlookup(sigemt_codes, sip->si_code);
|
|
break;
|
|
#endif
|
|
case SIGFPE:
|
|
code = xlookup(sigfpe_codes, sip->si_code);
|
|
break;
|
|
case SIGSEGV:
|
|
code = xlookup(sigsegv_codes, sip->si_code);
|
|
break;
|
|
case SIGBUS:
|
|
code = xlookup(sigbus_codes, sip->si_code);
|
|
break;
|
|
}
|
|
}
|
|
if (code)
|
|
tprintf(", si_code=%s", code);
|
|
else
|
|
tprintf(", si_code=%#x", sip->si_code);
|
|
#ifdef SI_NOINFO
|
|
if (sip->si_code != SI_NOINFO)
|
|
#endif
|
|
{
|
|
if (sip->si_errno) {
|
|
if (sip->si_errno < 0 || sip->si_errno >= nerrnos)
|
|
tprintf(", si_errno=%d", sip->si_errno);
|
|
else
|
|
tprintf(", si_errno=%s",
|
|
errnoent[sip->si_errno]);
|
|
}
|
|
#ifdef SI_FROMUSER
|
|
if (SI_FROMUSER(sip)) {
|
|
tprintf(", si_pid=%ld, si_uid=%ld",
|
|
sip->si_pid, sip->si_uid);
|
|
#ifdef SI_QUEUE
|
|
switch (sip->si_code) {
|
|
case SI_QUEUE:
|
|
#ifdef SI_TIMER
|
|
case SI_TIMER:
|
|
#endif /* SI_QUEUE */
|
|
case SI_ASYNCIO:
|
|
#ifdef SI_MESGQ
|
|
case SI_MESGQ:
|
|
#endif /* SI_MESGQ */
|
|
tprintf(", si_value=%d",
|
|
sip->si_value.sival_int);
|
|
break;
|
|
}
|
|
#endif /* SI_QUEUE */
|
|
}
|
|
else
|
|
#endif /* SI_FROMUSER */
|
|
{
|
|
switch (sip->si_signo) {
|
|
case SIGCHLD:
|
|
tprintf(", si_pid=%ld, si_status=",
|
|
(long) sip->si_pid);
|
|
if (sip->si_code == CLD_EXITED)
|
|
tprintf("%d", sip->si_status);
|
|
else
|
|
printsignal(sip->si_status);
|
|
#if LINUX
|
|
if (!verbose)
|
|
tprintf(", ...");
|
|
else
|
|
tprintf(", si_utime=%lu, si_stime=%lu",
|
|
sip->si_utime,
|
|
sip->si_stime);
|
|
#endif
|
|
break;
|
|
case SIGILL: case SIGFPE:
|
|
case SIGSEGV: case SIGBUS:
|
|
tprintf(", si_addr=%#lx",
|
|
(unsigned long) sip->si_addr);
|
|
break;
|
|
case SIGPOLL:
|
|
switch (sip->si_code) {
|
|
case POLL_IN: case POLL_OUT: case POLL_MSG:
|
|
tprintf(", si_band=%ld",
|
|
(long) sip->si_band);
|
|
break;
|
|
}
|
|
break;
|
|
#ifdef LINUX
|
|
default:
|
|
tprintf(", si_pid=%lu, si_uid=%lu, ",
|
|
(unsigned long) sip->si_pid,
|
|
(unsigned long) sip->si_uid);
|
|
if (!verbose)
|
|
tprintf("...");
|
|
else {
|
|
tprintf("si_value={int=%u, ptr=%#lx}",
|
|
sip->si_int,
|
|
(unsigned long) sip->si_ptr);
|
|
}
|
|
#endif
|
|
|
|
}
|
|
}
|
|
}
|
|
tprintf("}");
|
|
}
|
|
|
|
#endif /* SVR4 || LINUX */
|
|
|
|
#ifdef LINUX
|
|
|
|
static void
|
|
parse_sigset_t (const char *str, sigset_t *set)
|
|
{
|
|
const char *p;
|
|
unsigned int digit;
|
|
int i;
|
|
|
|
sigemptyset(set);
|
|
|
|
p = strchr(str, '\n');
|
|
if (p == NULL)
|
|
p = strchr(str, '\0');
|
|
for (i = 0; p-- > str; i += 4) {
|
|
if (*p >= '0' && *p <= '9')
|
|
digit = *p - '0';
|
|
else if (*p >= 'a' && *p <= 'f')
|
|
digit = *p - 'a' + 10;
|
|
else if (*p >= 'A' && *p <= 'F')
|
|
digit = *p - 'A' + 10;
|
|
else
|
|
break;
|
|
if (digit & 1)
|
|
sigaddset(set, i + 1);
|
|
if (digit & 2)
|
|
sigaddset(set, i + 2);
|
|
if (digit & 4)
|
|
sigaddset(set, i + 3);
|
|
if (digit & 8)
|
|
sigaddset(set, i + 4);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
/*
|
|
* 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[2048];
|
|
char *s;
|
|
int i;
|
|
sigset_t ignored, caught;
|
|
#endif
|
|
#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;
|
|
}
|
|
#endif /* !SVR4 */
|
|
#ifdef LINUX
|
|
|
|
/* This is incredibly costly but it's worth it. */
|
|
/* NOTE: LinuxThreads internally uses SIGRTMIN, SIGRTMIN + 1 and
|
|
SIGRTMIN + 2, so we can't use the obsolete /proc/%d/stat which
|
|
doesn't handle real-time signals). */
|
|
sprintf(sname, "/proc/%d/status", tcp->pid);
|
|
if ((sfd = open(sname, O_RDONLY)) == -1) {
|
|
perror(sname);
|
|
return 1;
|
|
}
|
|
i = read(sfd, buf, sizeof(buf));
|
|
buf[i] = '\0';
|
|
close(sfd);
|
|
/*
|
|
* Skip the extraneous fields. We need to skip
|
|
* command name has any spaces in it. So be it.
|
|
*/
|
|
s = strstr(buf, "SigIgn:\t");
|
|
if (!s)
|
|
{
|
|
fprintf(stderr, "/proc/pid/status format error\n");
|
|
return 1;
|
|
}
|
|
parse_sigset_t(s + 8, &ignored);
|
|
|
|
s = strstr(buf, "SigCgt:\t");
|
|
if (!s)
|
|
{
|
|
fprintf(stderr, "/proc/pid/status format error\n");
|
|
return 1;
|
|
}
|
|
parse_sigset_t(s + 8, &caught);
|
|
|
|
#ifdef DEBUG
|
|
fprintf(stderr, "sigs: %016qx %016qx (sig=%d)\n",
|
|
*(long long *) &ignored, *(long long *) &caught, sig);
|
|
#endif
|
|
if (sigismember(&ignored, sig) || sigismember(&caught, 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 */
|
|
|
|
return 0;
|
|
}
|
|
|
|
#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;
|
|
#ifdef LINUX
|
|
sigset_t sigset;
|
|
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");
|
|
#ifdef SA_RESTORER
|
|
if (sa.sa_flags & SA_RESTORER)
|
|
tprintf(", %p", sa.sa_restorer);
|
|
#endif
|
|
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 ARM
|
|
struct pt_regs regs;
|
|
struct sigcontext_struct sc;
|
|
|
|
if (entering(tcp)) {
|
|
tcp->u_arg[0] = 0;
|
|
|
|
if (ptrace(PTRACE_GETREGS, tcp->pid, NULL, (void *)®s) == -1)
|
|
return 0;
|
|
|
|
if (umove(tcp, regs.ARM_sp, &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;
|
|
#elif defined(S390) || defined(S390X)
|
|
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],0);
|
|
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, sizeof(unsigned long)*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
|
|
#if defined (SPARC) || defined (SPARC64)
|
|
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;
|
|
#else
|
|
#warning No sys_sigreturn() for this architecture
|
|
#warning (no problem, just a reminder :-)
|
|
return 0;
|
|
#endif /* MIPS */
|
|
#endif /* SPARC || SPARC64 */
|
|
#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 const 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 const 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);
|
|
}
|
|
|
|
#ifdef LINUX
|
|
int
|
|
sys_tgkill(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
if (entering(tcp)) {
|
|
tprintf("%ld, %ld, %s",
|
|
tcp->u_arg[0], tcp->u_arg[1], signame(tcp->u_arg[2]));
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
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;
|
|
}
|
|
|
|
int sys_sigwait(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
sigset_t sigset;
|
|
|
|
if (entering(tcp)) {
|
|
if (copy_sigset(tcp, tcp->u_arg[0], &sigset) < 0)
|
|
tprintf("[?]");
|
|
else
|
|
printsigmask(&sigset, 0);
|
|
}
|
|
else {
|
|
if (!syserror(tcp)) {
|
|
tcp->auxstr = signalent[tcp->u_rval];
|
|
return RVAL_DECIMAL | RVAL_STR;
|
|
}
|
|
}
|
|
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;
|
|
}
|
|
|
|
|
|
/* 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");
|
|
#ifdef SA_RESTORER
|
|
if (sa.sa_flags & SA_RESTORER)
|
|
tprintf(", %p", sa.sa_restorer);
|
|
#endif
|
|
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;
|
|
}
|
|
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, verbose (tcp));
|
|
}
|
|
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, verbose (tcp));
|
|
/* XXX For now */
|
|
tprintf(", %#lx", tcp->u_arg[2]);
|
|
tprintf(", %d", (int) tcp->u_arg[3]);
|
|
}
|
|
}
|
|
return 0;
|
|
};
|
|
|
|
#endif /* LINUX */
|