mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-22 19:39:42 +08:00
01f78a025e
1999-04-20 Andrew Haley <aph@cygnus.com>
* include/sparc-signal.h: new file.
* configure.in: include/sparc-signal.h added.
* configure: regenerated.
* prims.cc (JvRunMain): signal handling code rewritten to be more
portable.
(catch_segv): ditto.
(catch_fpe): ditto.
* include/i386-signal.h: reorganized.
* include/default-signal.h: reorganized.
From-SVN: r26560
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
// i386-signal.h - Catch runtime signals and turn them into exceptions.
|
|
|
|
/* Copyright (C) 1998, 1999 Cygnus Solutions
|
|
|
|
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. */
|
|
|
|
/* This technique should work for all i386 based Unices which conform
|
|
* to iBCS2. This includes all versions of Linux more recent than 1.3
|
|
*/
|
|
|
|
|
|
#ifndef JAVA_SIGNAL_H
|
|
#define JAVA_SIGNAL_H 1
|
|
|
|
#include <signal.h>
|
|
|
|
#define HANDLE_SEGV 1
|
|
#define HANDLE_FPE 1
|
|
|
|
#define SIGNAL_HANDLER(_name) \
|
|
static void _name (int _dummy)
|
|
|
|
#define MAKE_THROW_FRAME \
|
|
{ \
|
|
void **_p = (void **)&_dummy; \
|
|
struct sigcontext_struct *_regs = (struct sigcontext_struct *)++_p; \
|
|
\
|
|
register unsigned long _ebp = _regs->ebp; \
|
|
register unsigned long _eip = _regs->eip; \
|
|
\
|
|
asm volatile ("mov %0, (%%ebp); mov %1, 4(%%ebp)" \
|
|
: : "r"(_ebp), "r"(_eip)); \
|
|
}
|
|
|
|
#define INIT_SEGV \
|
|
do \
|
|
{ \
|
|
nullp = new java::lang::NullPointerException (); \
|
|
struct sigaction act; \
|
|
act.sa_handler = catch_segv; \
|
|
sigemptyset (&act.sa_mask); \
|
|
act.sa_flags = 0; \
|
|
sigaction (SIGSEGV, &act, NULL); \
|
|
} \
|
|
while (0)
|
|
|
|
#define INIT_FPE \
|
|
do \
|
|
{ \
|
|
arithexception = new java::lang::ArithmeticException (); \
|
|
struct sigaction act; \
|
|
act.sa_handler = catch_fpe; \
|
|
sigemptyset (&act.sa_mask); \
|
|
act.sa_flags = 0; \
|
|
sigaction (SIGFPE, &act, NULL); \
|
|
} \
|
|
while (0)
|
|
|
|
#endif /* JAVA_SIGNAL_H */
|
|
|