61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
// posix-signal.h - Catch runtime signals and turn them into exceptions.
|
|
|
|
/* Copyright (C) 1998, 1999, 2000, 2009, 2011 Free Software Foundation
|
|
|
|
This file is part of libgcj.
|
|
|
|
This software is copyrighted work licensed under the terms of the
|
|
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
|
|
details. */
|
|
|
|
#ifndef JAVA_SIGNAL_H
|
|
#define JAVA_SIGNAL_H 1
|
|
|
|
#include <signal.h>
|
|
|
|
#define HANDLE_SEGV 1
|
|
#define HANDLE_FPE 1
|
|
|
|
/* Different implementations of MD_FALLBACK_FRAME_STATE_FOR either require
|
|
SA_SIGINFO being set or fail if so. Cf. gcc/ada/init.c
|
|
(__gnat_install_handler) for details. */
|
|
|
|
#if (defined __alpha__ && defined __osf__) \
|
|
|| (defined __sun__ && defined __svr4__)
|
|
#define SA_FLAGS SA_NODEFER | SA_SIGINFO
|
|
#elif defined __sgi__
|
|
#define SA_FLAGS SA_NODEFER
|
|
#else
|
|
#error Must define SA_FLAGS.
|
|
#endif
|
|
|
|
#if SA_FLAGS & SA_SIGINFO
|
|
#define SIGNAL_HANDLER(_name) \
|
|
static void _Jv_##_name (int, \
|
|
siginfo_t *_si __attribute__ ((__unused__)), \
|
|
void *_uc __attribute__ ((__unused__)))
|
|
#define sa_signal_handler sa_sigaction
|
|
#else
|
|
#define SIGNAL_HANDLER(_name) \
|
|
static void _Jv_##_name (int)
|
|
#define sa_signal_handler sa_handler
|
|
#endif
|
|
|
|
#define MAKE_THROW_FRAME(_exception)
|
|
|
|
#define _INIT_SIG_HANDLER(_SIG, _ACTION) \
|
|
do \
|
|
{ \
|
|
struct sigaction act; \
|
|
act.sa_signal_handler = _Jv_##_ACTION; \
|
|
act.sa_flags = SA_FLAGS; \
|
|
sigemptyset (&act.sa_mask); \
|
|
sigaction(_SIG, &act, NULL); \
|
|
} \
|
|
while (0)
|
|
|
|
#define INIT_SEGV _INIT_SIG_HANDLER (SIGSEGV, catch_segv)
|
|
#define INIT_FPE _INIT_SIG_HANDLER (SIGFPE, catch_fpe)
|
|
|
|
#endif /* JAVA_SIGNAL_H */
|