39fca62801
Trivial shuffling of data tables puts them all in one file,
allowing gcc to see their sizes and eliminate variables
which store these sizes.
Surprisingly, in C mode gcc does not optimize out static const int
variables. Help it by using enums instead.
* defs.h: Stop exporting ioctlent{0,1,2}, nioctlents{0,1,2},
signalent{0,1,2}, nsignals{0,1,2}.
* ioctl.c: Remove definitions of ioctlent{,0,1,2} and nioctlents{,0,1,2}.
* signal.c: Remove definitions of signalent{,0,1,2} and nsignals{,0,1,2}.
* syscall.c: Move above definitions to this file. Make them static const
or enums if suitable.
2007 lines
45 KiB
C
2007 lines
45 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 <stdint.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
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#if defined (LINUX) && defined (SPARC64)
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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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#if defined (SPARC) || defined (SPARC64) || defined (MIPS)
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typedef struct {
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struct pt_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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#if defined I386 && !defined HAVE_STRUCT_SIGCONTEXT_STRUCT
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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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#if defined M68K && !defined HAVE_STRUCT_SIGCONTEXT
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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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#warning: NSIG is not defined, using 32
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#define NSIG 32
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#endif
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#ifdef ARM
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/* Ugh. Is this really correct? ARM has no RT signals?! */
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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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#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 we 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_NODEFER
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{ SA_NODEFER, "SA_NODEFER" },
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#endif
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#if defined SA_NOMASK && SA_NODEFER != SA_NOMASK
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{ SA_NOMASK, "SA_NOMASK" },
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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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#if defined SA_ONESHOT && SA_ONESHOT != SA_RESETHAND
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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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#ifdef SA_NOPTRACE
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{ SA_NOPTRACE, "SA_NOPTRACE" },
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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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/* Note on the size of sigset_t:
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*
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* In glibc, sigset_t is an array with space for 1024 bits (!),
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* even though all arches supported by Linux have only 64 signals
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* except MIPS, which has 128. IOW, it is 128 bytes long.
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*
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* In-kernel sigset_t is sized correctly (it is either 64 or 128 bit long).
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* However, some old syscall return only 32 lower bits (one word).
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* Example: sys_sigpending vs sys_rt_sigpending.
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*
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* Be aware of this fact when you try to
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* memcpy(&tcp->u_arg[1], &something, sizeof(sigset_t))
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* - sizeof(sigset_t) is much bigger than you think,
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* it may overflow tcp->u_arg[] array, and it may try to copy more data
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* than is really available in <something>.
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* Similarly,
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* umoven(tcp, addr, sizeof(sigset_t), &sigset)
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* may be a bad idea: it'll try to read much more data than needed
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* to fetch a sigset_t.
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* Use (NSIG / 8) as a size instead.
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*/
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const char *
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signame(int sig)
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{
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static char buf[sizeof("SIGRT_%d") + sizeof(int)*3];
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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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if (sig >= __SIGRTMIN && sig <= __SIGRTMAX) {
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sprintf(buf, "SIGRT_%d", (int)(sig - __SIGRTMIN));
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return buf;
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}
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#endif
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sprintf(buf, "%d", sig);
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return buf;
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}
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#ifndef UNIXWARE
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static void
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long_to_sigset(long l, 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(struct tcb *tcp, long addr, sigset_t *s, 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 const char *
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sprintsigmask(const char *str, sigset_t *mask, int rt)
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/* set might include realtime sigs */
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{
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/* Was [8 * sizeof(sigset_t) * 8], but
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* glibc sigset_t is huge (1024 bits = 128 *bytes*),
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* and we were ending up with 8k (!) buffer here.
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*
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* No Unix system can have sig > 255
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* (waitpid API won't be able to indicate death from one)
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* and sig 0 doesn't exist either.
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* Therefore max possible no of sigs is 255: 1..255
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*/
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static char outstr[8 * 255];
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int i, nsigs;
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int maxsigs;
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const char *format;
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char *s;
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strcpy(outstr, str);
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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(sigset_t *mask, 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(int nr)
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{
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tprintf("%s", signame(nr));
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}
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void
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print_sigset(struct tcb *tcp, long addr, int rt)
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{
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sigset_t ss;
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if (!addr)
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tprintf("NULL");
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else if (copy_sigset(tcp, addr, &ss) < 0)
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tprintf("%#lx", addr);
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else
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printsigmask(&ss, rt);
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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_KERNEL 0x80 /* sent by kernel */
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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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#define SI_ASYNCNL -60 /* sent by asynch name lookup completion */
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#define SI_FROMUSER(sip) ((sip)->si_code <= 0)
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#endif /* LINUX */
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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;
|
|
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;
|
|
|
|
#define si_pid _sifields._kill.si_pid
|
|
#define si_uid _sifields._kill.si_uid
|
|
#define si_status _sifields._sigchld.si_status
|
|
#define si_utime _sifields._sigchld.si_utime
|
|
#define si_stime _sifields._sigchld.si_stime
|
|
#define si_value _sifields._rt.si_sigval
|
|
#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_KERNEL
|
|
{ SI_KERNEL, "SI_KERNEL" },
|
|
#endif
|
|
#ifdef SI_USER
|
|
{ SI_USER, "SI_USER" },
|
|
#endif
|
|
#ifdef SI_QUEUE
|
|
{ SI_QUEUE, "SI_QUEUE" },
|
|
#endif
|
|
#ifdef SI_TIMER
|
|
{ SI_TIMER, "SI_TIMER" },
|
|
#endif
|
|
#ifdef SI_MESGQ
|
|
{ SI_MESGQ, "SI_MESGQ" },
|
|
#endif
|
|
#ifdef SI_ASYNCIO
|
|
{ SI_ASYNCIO, "SI_ASYNCIO" },
|
|
#endif
|
|
#ifdef SI_SIGIO
|
|
{ SI_SIGIO, "SI_SIGIO" },
|
|
#endif
|
|
#ifdef SI_TKILL
|
|
{ SI_TKILL, "SI_TKILL" },
|
|
#endif
|
|
#ifdef SI_ASYNCNL
|
|
{ SI_ASYNCNL, "SI_ASYNCNL" },
|
|
#endif
|
|
#ifdef SI_NOINFO
|
|
{ SI_NOINFO, "SI_NOINFO" },
|
|
#endif
|
|
#ifdef SI_LWP
|
|
{ SI_LWP, "SI_LWP" },
|
|
#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(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=%lu, si_uid=%lu",
|
|
(unsigned long) sip->si_pid,
|
|
(unsigned long) sip->si_uid);
|
|
switch (sip->si_code) {
|
|
#ifdef SI_USER
|
|
case SI_USER:
|
|
break;
|
|
#endif
|
|
#ifdef SI_TKILL
|
|
case SI_TKILL:
|
|
break;
|
|
#endif
|
|
#ifdef SI_TIMER
|
|
case SI_TIMER:
|
|
tprintf(", si_value=%d", sip->si_int);
|
|
break;
|
|
#endif
|
|
#ifdef LINUX
|
|
default:
|
|
if (!sip->si_ptr)
|
|
break;
|
|
if (!verbose)
|
|
tprintf(", ...");
|
|
else
|
|
tprintf(", si_value={int=%u, ptr=%#lx}",
|
|
sip->si_int,
|
|
(unsigned long) sip->si_ptr);
|
|
break;
|
|
#endif
|
|
}
|
|
}
|
|
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:
|
|
if (sip->si_pid || sip->si_uid)
|
|
tprintf(", si_pid=%lu, si_uid=%lu",
|
|
(unsigned long) sip->si_pid,
|
|
(unsigned long) sip->si_uid);
|
|
if (!sip->si_ptr)
|
|
break;
|
|
if (!verbose)
|
|
tprintf(", ...");
|
|
else {
|
|
tprintf(", si_value={int=%u, ptr=%#lx}",
|
|
sip->si_int,
|
|
(unsigned long) sip->si_ptr);
|
|
}
|
|
#endif
|
|
|
|
}
|
|
}
|
|
}
|
|
tprintf("}");
|
|
}
|
|
|
|
#endif /* SVR4 || LINUX */
|
|
|
|
#if defined(SUNOS4) || defined(FREEBSD)
|
|
|
|
int
|
|
sys_sigvec(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(", ");
|
|
printflags(sigvec_flags, sv.sv_flags, "SV_???");
|
|
tprintf("}");
|
|
}
|
|
}
|
|
if (entering(tcp))
|
|
tprintf(", ");
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sys_sigpause(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(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(struct tcb *tcp)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif /* SUNOS4 || FREEBSD */
|
|
|
|
#ifndef SVR4
|
|
|
|
int
|
|
sys_sigsetmask(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;
|
|
}
|
|
|
|
#if defined(SUNOS4) || defined(FREEBSD)
|
|
int
|
|
sys_sigblock(struct tcb *tcp)
|
|
{
|
|
return sys_sigsetmask(tcp);
|
|
}
|
|
#endif /* SUNOS4 || FREEBSD */
|
|
|
|
#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(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 {
|
|
/* Architectures using function pointers, like
|
|
* hppa, may need to manipulate the function pointer
|
|
* to compute the result of a comparison. However,
|
|
* the SA_HANDLER function pointer exists only in
|
|
* the address space of the traced process, and can't
|
|
* be manipulated by strace. In order to prevent the
|
|
* compiler from generating code to manipulate
|
|
* SA_HANDLER we cast the function pointers to long. */
|
|
if ((long)sa.SA_HANDLER == (long)SIG_ERR)
|
|
tprintf("{SIG_ERR, ");
|
|
else if ((long)sa.SA_HANDLER == (long)SIG_DFL)
|
|
tprintf("{SIG_DFL, ");
|
|
else if ((long)sa.SA_HANDLER == (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, ");
|
|
}
|
|
else {
|
|
#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(", ");
|
|
printflags(sigact_flags, sa.sa_flags, "SA_???");
|
|
#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(struct tcb *tcp)
|
|
{
|
|
if (entering(tcp)) {
|
|
printsignal(tcp->u_arg[0]);
|
|
tprintf(", ");
|
|
switch (tcp->u_arg[1]) {
|
|
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", tcp->u_arg[1]);
|
|
}
|
|
return 0;
|
|
}
|
|
else if (!syserror(tcp)) {
|
|
switch (tcp->u_rval) {
|
|
case (long) SIG_ERR:
|
|
tcp->auxstr = "SIG_ERR"; break;
|
|
case (long) SIG_DFL:
|
|
tcp->auxstr = "SIG_DFL"; break;
|
|
case (long) SIG_IGN:
|
|
tcp->auxstr = "SIG_IGN"; break;
|
|
default:
|
|
tcp->auxstr = NULL;
|
|
}
|
|
return RVAL_HEX | RVAL_STR;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#ifdef SVR4
|
|
int
|
|
sys_sighold(struct tcb *tcp)
|
|
{
|
|
if (entering(tcp)) {
|
|
printsignal(tcp->u_arg[0]);
|
|
}
|
|
return 0;
|
|
}
|
|
#endif /* SVR4 */
|
|
|
|
#endif /* HAVE_SIGACTION */
|
|
|
|
#ifdef LINUX
|
|
|
|
int
|
|
sys_sigreturn(struct tcb *tcp)
|
|
{
|
|
#if defined(ARM)
|
|
if (entering(tcp)) {
|
|
struct pt_regs regs;
|
|
struct sigcontext_struct sc;
|
|
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;
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
long_to_sigset(tcp->u_arg[1], &sigm);
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#elif defined(S390) || defined(S390X)
|
|
if (entering(tcp)) {
|
|
long usp;
|
|
struct sigcontext_struct sc;
|
|
tcp->u_arg[0] = 0;
|
|
if (upeek(tcp, 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], NSIG / 8);
|
|
} 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;
|
|
#elif defined(I386)
|
|
if (entering(tcp)) {
|
|
long esp;
|
|
struct sigcontext_struct sc;
|
|
tcp->u_arg[0] = 0;
|
|
if (upeek(tcp, 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;
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
long_to_sigset(tcp->u_arg[1], &sigm);
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#elif defined(IA64)
|
|
if (entering(tcp)) {
|
|
struct sigcontext sc;
|
|
long sp;
|
|
/* offset of sigcontext in the kernel's sigframe structure: */
|
|
# define SIGFRAME_SC_OFFSET 0x90
|
|
tcp->u_arg[0] = 0;
|
|
if (upeek(tcp, 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, NSIG / 8);
|
|
}
|
|
else {
|
|
sigset_t sigm;
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
sigemptyset(&sigm);
|
|
memcpy(&sigm, tcp->u_arg + 1, NSIG / 8);
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#elif defined(POWERPC)
|
|
if (entering(tcp)) {
|
|
long esp;
|
|
struct sigcontext_struct sc;
|
|
tcp->u_arg[0] = 0;
|
|
if (upeek(tcp, sizeof(unsigned long)*PT_R1, &esp) < 0)
|
|
return 0;
|
|
/* Skip dummy stack frame. */
|
|
#ifdef POWERPC64
|
|
if (current_personality == 0)
|
|
esp += 128;
|
|
else
|
|
esp += 64;
|
|
#else
|
|
esp += 64;
|
|
#endif
|
|
if (umove(tcp, esp, &sc) < 0)
|
|
return 0;
|
|
tcp->u_arg[0] = 1;
|
|
tcp->u_arg[1] = sc.oldmask;
|
|
}
|
|
else {
|
|
sigset_t sigm;
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
long_to_sigset(tcp->u_arg[1], &sigm);
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#elif defined(M68K)
|
|
if (entering(tcp)) {
|
|
long usp;
|
|
struct sigcontext sc;
|
|
tcp->u_arg[0] = 0;
|
|
if (upeek(tcp, 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;
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
long_to_sigset(tcp->u_arg[1], &sigm);
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#elif defined(ALPHA)
|
|
if (entering(tcp)) {
|
|
long fp;
|
|
struct sigcontext_struct sc;
|
|
tcp->u_arg[0] = 0;
|
|
if (upeek(tcp, 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;
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
long_to_sigset(tcp->u_arg[1], &sigm);
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#elif defined (SPARC) || defined (SPARC64)
|
|
if (entering(tcp)) {
|
|
long i1;
|
|
struct pt_regs regs;
|
|
m_siginfo_t si;
|
|
tcp->u_arg[0] = 0;
|
|
if (ptrace(PTRACE_GETREGS, tcp->pid, (char *)®s, 0) < 0) {
|
|
perror("sigreturn: PTRACE_GETREGS");
|
|
return 0;
|
|
}
|
|
i1 = regs.u_regs[U_REG_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;
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
long_to_sigset(tcp->u_arg[1], &sigm);
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#elif defined (LINUX_MIPSN32) || defined (LINUX_MIPSN64)
|
|
/* This decodes rt_sigreturn. The 64-bit ABIs do not have
|
|
sigreturn. */
|
|
if (entering(tcp)) {
|
|
long sp;
|
|
struct ucontext uc;
|
|
tcp->u_arg[0] = 0;
|
|
if (upeek(tcp, REG_SP, &sp) < 0)
|
|
return 0;
|
|
/* There are six words followed by a 128-byte siginfo. */
|
|
sp = sp + 6 * 4 + 128;
|
|
if (umove(tcp, sp, &uc) < 0)
|
|
return 0;
|
|
tcp->u_arg[0] = 1;
|
|
tcp->u_arg[1] = *(long *) &uc.uc_sigmask;
|
|
} else {
|
|
sigset_t sigm;
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
long_to_sigset(tcp->u_arg[1], &sigm);
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#elif defined(MIPS)
|
|
if (entering(tcp)) {
|
|
long sp;
|
|
struct pt_regs regs;
|
|
m_siginfo_t si;
|
|
tcp->u_arg[0] = 0;
|
|
if (ptrace(PTRACE_GETREGS, tcp->pid, (char *)®s, 0) < 0) {
|
|
perror("sigreturn: PTRACE_GETREGS");
|
|
return 0;
|
|
}
|
|
sp = regs.regs[29];
|
|
if (umove(tcp, sp, &si) < 0)
|
|
return 0;
|
|
tcp->u_arg[0] = 1;
|
|
tcp->u_arg[1] = si.si_mask;
|
|
} else {
|
|
sigset_t sigm;
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
long_to_sigset(tcp->u_arg[1], &sigm);
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#elif defined(CRISV10) || defined(CRISV32)
|
|
if (entering(tcp)) {
|
|
struct sigcontext sc;
|
|
long regs[PT_MAX+1];
|
|
tcp->u_arg[0] = 0;
|
|
if (ptrace(PTRACE_GETREGS, tcp->pid, NULL, (long)regs) < 0) {
|
|
perror("sigreturn: PTRACE_GETREGS");
|
|
return 0;
|
|
}
|
|
if (umove(tcp, regs[PT_USP], &sc) < 0)
|
|
return 0;
|
|
tcp->u_arg[0] = 1;
|
|
tcp->u_arg[1] = sc.oldmask;
|
|
} else {
|
|
sigset_t sigm;
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
long_to_sigset(tcp->u_arg[1], &sigm);
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#elif defined(TILE)
|
|
if (entering(tcp)) {
|
|
struct ucontext uc;
|
|
long sp;
|
|
|
|
/* offset of ucontext in the kernel's sigframe structure */
|
|
# define SIGFRAME_UC_OFFSET C_ABI_SAVE_AREA_SIZE + sizeof(struct siginfo)
|
|
tcp->u_arg[0] = 0;
|
|
if (upeek(tcp, PTREGS_OFFSET_SP, &sp) < 0)
|
|
return 0;
|
|
if (umove(tcp, sp + SIGFRAME_UC_OFFSET, &uc) < 0)
|
|
return 0;
|
|
tcp->u_arg[0] = 1;
|
|
memcpy(tcp->u_arg + 1, &uc.uc_sigmask, NSIG / 8);
|
|
}
|
|
else {
|
|
sigset_t sigm;
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
sigemptyset(&sigm);
|
|
memcpy(&sigm, tcp->u_arg + 1, NSIG / 8);
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#elif defined(MICROBLAZE)
|
|
/* TODO: Verify that this is correct... */
|
|
if (entering(tcp)) {
|
|
struct sigcontext sc;
|
|
long sp;
|
|
tcp->u_arg[0] = 0;
|
|
/* Read r1, the stack pointer. */
|
|
if (upeek(tcp, 1 * 4, &sp) < 0)
|
|
return 0;
|
|
if (umove(tcp, sp, &sc) < 0)
|
|
return 0;
|
|
tcp->u_arg[0] = 1;
|
|
tcp->u_arg[1] = sc.oldmask;
|
|
} else {
|
|
sigset_t sigm;
|
|
tcp->u_rval = tcp->u_error = 0;
|
|
if (tcp->u_arg[0] == 0)
|
|
return 0;
|
|
long_to_sigset(tcp->u_arg[1], &sigm);
|
|
tcp->auxstr = sprintsigmask("mask now ", &sigm, 0);
|
|
return RVAL_NONE | RVAL_STR;
|
|
}
|
|
return 0;
|
|
#else
|
|
#warning No sys_sigreturn() for this architecture
|
|
#warning (no problem, just a reminder :-)
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
int
|
|
sys_siggetmask(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(struct tcb *tcp)
|
|
{
|
|
if (entering(tcp)) {
|
|
sigset_t sigm;
|
|
long_to_sigset(tcp->u_arg[2], &sigm);
|
|
printsigmask(&sigm, 0);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#endif /* LINUX */
|
|
|
|
#if defined(SVR4) || defined(FREEBSD)
|
|
|
|
int
|
|
sys_sigsuspend(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(struct tcb *tcp, ucontext_t *ucp)
|
|
{
|
|
tprintf("{");
|
|
if (!abbrev(tcp)) {
|
|
tprintf("uc_flags=");
|
|
printflags(ucontext_flags, ucp->uc_flags, "UC_???");
|
|
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);
|
|
printflags(sigaltstack_flags, ucp->uc_stack.ss_flags, "SS_???");
|
|
tprintf("}");
|
|
}
|
|
tprintf(", ...}");
|
|
}
|
|
|
|
int
|
|
sys_getcontext(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(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(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);
|
|
printflags(sigaltstack_flags, ss.ss_flags, "SS_???");
|
|
tprintf(", ss_size=%lu}", (unsigned long) ss.ss_size);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sys_sigaltstack(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(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 */
|
|
if (entering(tcp)) {
|
|
#ifdef SVR4
|
|
if (tcp->u_arg[0] == 0)
|
|
tprintf("0");
|
|
else
|
|
#endif /* SVR4 */
|
|
printxval(sigprocmaskcmds, tcp->u_arg[0], "SIG_???");
|
|
tprintf(", ");
|
|
print_sigset(tcp, tcp->u_arg[1], 0);
|
|
tprintf(", ");
|
|
}
|
|
else {
|
|
if (!tcp->u_arg[2])
|
|
tprintf("NULL");
|
|
else if (syserror(tcp))
|
|
tprintf("%#lx", tcp->u_arg[2]);
|
|
else
|
|
print_sigset(tcp, tcp->u_arg[2], 0);
|
|
}
|
|
#endif /* !ALPHA */
|
|
return 0;
|
|
}
|
|
|
|
#endif /* HAVE_SIGACTION */
|
|
|
|
int
|
|
sys_kill(struct tcb *tcp)
|
|
{
|
|
if (entering(tcp)) {
|
|
/*
|
|
* Sign-extend a 32-bit value when that's what it is.
|
|
*/
|
|
long pid = tcp->u_arg[0];
|
|
if (personality_wordsize[current_personality] < sizeof pid)
|
|
pid = (long) (int) pid;
|
|
tprintf("%ld, %s", pid, signame(tcp->u_arg[1]));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#if defined(FREEBSD) || defined(SUNOS4)
|
|
int
|
|
sys_killpg(struct tcb *tcp)
|
|
{
|
|
return sys_kill(tcp);
|
|
}
|
|
#endif /* FREEBSD || SUNOS4 */
|
|
|
|
#ifdef LINUX
|
|
int
|
|
sys_tgkill(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(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 SVR4
|
|
int sys_sigwait(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;
|
|
}
|
|
#endif /* SVR4 */
|
|
|
|
#ifdef LINUX
|
|
|
|
int
|
|
sys_rt_sigprocmask(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
|
|
{
|
|
__sighandler_t __sa_handler;
|
|
unsigned long sa_flags;
|
|
void (*sa_restorer) (void);
|
|
/* Kernel treats sa_mask as an array of longs. */
|
|
unsigned long sa_mask[NSIG / sizeof(long) ? NSIG / sizeof(long) : 1];
|
|
};
|
|
/* Same for i386-on-x86_64 and similar cases */
|
|
struct new_sigaction32
|
|
{
|
|
uint32_t __sa_handler;
|
|
uint32_t sa_flags;
|
|
uint32_t sa_restorer;
|
|
uint32_t sa_mask[2 * (NSIG / sizeof(long) ? NSIG / sizeof(long) : 1)];
|
|
};
|
|
|
|
|
|
int
|
|
sys_rt_sigaction(struct tcb *tcp)
|
|
{
|
|
struct new_sigaction sa;
|
|
sigset_t sigset;
|
|
long addr;
|
|
int r;
|
|
|
|
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");
|
|
goto after_sa;
|
|
}
|
|
if (!verbose(tcp)) {
|
|
tprintf("%#lx", addr);
|
|
goto after_sa;
|
|
}
|
|
#if SUPPORTED_PERSONALITIES > 1
|
|
if (personality_wordsize[current_personality] != sizeof(sa.sa_flags)
|
|
&& personality_wordsize[current_personality] == 4
|
|
) {
|
|
struct new_sigaction32 sa32;
|
|
r = umove(tcp, addr, &sa32);
|
|
if (r >= 0) {
|
|
memset(&sa, 0, sizeof(sa));
|
|
sa.__sa_handler = (void*)(unsigned long)sa32.__sa_handler;
|
|
sa.sa_flags = sa32.sa_flags;
|
|
sa.sa_restorer = (void*)(unsigned long)sa32.sa_restorer;
|
|
/* Kernel treats sa_mask as an array of longs.
|
|
* For 32-bit process, "long" is uint32_t, thus, for example,
|
|
* 32th bit in sa_mask will end up as bit 0 in sa_mask[1].
|
|
* But for (64-bit) kernel, 32th bit in sa_mask is
|
|
* 32th bit in 0th (64-bit) long!
|
|
* For little-endian, it's the same.
|
|
* For big-endian, we swap 32-bit words.
|
|
*/
|
|
sa.sa_mask[0] = sa32.sa_mask[0] + ((long)(sa32.sa_mask[1]) << 32);
|
|
}
|
|
} else
|
|
#endif
|
|
{
|
|
r = umove(tcp, addr, &sa);
|
|
}
|
|
if (r < 0) {
|
|
tprintf("{...}");
|
|
goto after_sa;
|
|
}
|
|
/* Architectures using function pointers, like
|
|
* hppa, may need to manipulate the function pointer
|
|
* to compute the result of a comparison. However,
|
|
* the SA_HANDLER function pointer exists only in
|
|
* the address space of the traced process, and can't
|
|
* be manipulated by strace. In order to prevent the
|
|
* compiler from generating code to manipulate
|
|
* SA_HANDLER we cast the function pointers to long. */
|
|
if ((long)sa.__sa_handler == (long)SIG_ERR)
|
|
tprintf("{SIG_ERR, ");
|
|
else if ((long)sa.__sa_handler == (long)SIG_DFL)
|
|
tprintf("{SIG_DFL, ");
|
|
else if ((long)sa.__sa_handler == (long)SIG_IGN)
|
|
tprintf("{SIG_IGN, ");
|
|
else
|
|
tprintf("{%#lx, ", (long) sa.__sa_handler);
|
|
/* Questionable code below.
|
|
* Kernel won't handle sys_rt_sigaction
|
|
* with wrong sigset size (just returns EINVAL)
|
|
* therefore tcp->u_arg[3(4)] _must_ be NSIG / 8 here,
|
|
* and we always use smaller memcpy. */
|
|
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(", ");
|
|
printflags(sigact_flags, sa.sa_flags, "SA_???");
|
|
#ifdef SA_RESTORER
|
|
if (sa.sa_flags & SA_RESTORER)
|
|
tprintf(", %p", sa.sa_restorer);
|
|
#endif
|
|
tprintf("}");
|
|
|
|
after_sa:
|
|
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", tcp->u_arg[3]);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sys_rt_sigpending(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(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(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(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(", ");
|
|
/* This is the only "return" parameter, */
|
|
if (tcp->u_arg[1] != 0)
|
|
return 0;
|
|
/* ... if it's NULL, can decode all on entry */
|
|
tprintf("NULL, ");
|
|
}
|
|
else if (tcp->u_arg[1] != 0) {
|
|
/* syscall exit, and u_arg[1] wasn't NULL */
|
|
if (syserror(tcp))
|
|
tprintf("%#lx, ", tcp->u_arg[1]);
|
|
else {
|
|
siginfo_t si;
|
|
if (umove(tcp, tcp->u_arg[1], &si) < 0)
|
|
tprintf("%#lx, ", tcp->u_arg[1]);
|
|
else {
|
|
printsiginfo(&si, verbose(tcp));
|
|
tprintf(", ");
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
/* syscall exit, and u_arg[1] was NULL */
|
|
return 0;
|
|
}
|
|
print_timespec(tcp, tcp->u_arg[2]);
|
|
tprintf(", %d", (int) tcp->u_arg[3]);
|
|
return 0;
|
|
};
|
|
|
|
int
|
|
sys_restart_syscall(struct tcb *tcp)
|
|
{
|
|
if (entering(tcp))
|
|
tprintf("<... resuming interrupted call ...>");
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
do_signalfd(struct tcb *tcp, int flags_arg)
|
|
{
|
|
if (entering(tcp)) {
|
|
printfd(tcp, tcp->u_arg[0]);
|
|
tprintf(", ");
|
|
print_sigset(tcp, tcp->u_arg[1], 1);
|
|
tprintf(", %lu", tcp->u_arg[2]);
|
|
if (flags_arg >= 0) {
|
|
tprintf(", ");
|
|
printflags(open_mode_flags, tcp->u_arg[flags_arg], "O_???");
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sys_signalfd(struct tcb *tcp)
|
|
{
|
|
return do_signalfd(tcp, -1);
|
|
}
|
|
|
|
int
|
|
sys_signalfd4(struct tcb *tcp)
|
|
{
|
|
return do_signalfd(tcp, 3);
|
|
}
|
|
#endif /* LINUX */
|