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Diffstat (limited to 'libjava/include/posix-signal.h')
| -rw-r--r-- | libjava/include/posix-signal.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/libjava/include/posix-signal.h b/libjava/include/posix-signal.h new file mode 100644 index 0000000..726fde3 --- /dev/null +++ b/libjava/include/posix-signal.h @@ -0,0 +1,60 @@ +// 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 */ |