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i386-signal.h, [...]: New files.

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1999-04-13  Andrew Haley  <aph@cygnus.com>
        * include/i386-signal.h, include/default-signal.h: New files.
        * prims.cc (catch_segv): Call MAKE_THROW_FRAME in exception
        handler.
        (catch_fpe): New function.
        * configure.in: Make link to appropriate include/java-signal.h.
        * configure: Rebuilt.
        * Makefile.am: include/java-signal.h added to dependency list.
        * Makefile.in: Rebuilt.

From-SVN: r26400
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Andrew Haley 1999-04-13 09:18:09 +00:00 • committed by Andrew Haley
parent 0e8285f120
commit a4e44caa6d
8 changed files with 133 additions and 20 deletions
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38
libjava/include/i386-signal.h Normal file
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// 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
version 1.3 */
#ifndef JAVA_SIGNAL_H
#define JAVA_SIGNAL_H 1
#include <signal.h>
#define HANDLE_SEGV 1
#define HANDLE_FPE 1
#define MAKE_THROW_FRAME(_dummy) \
{ \
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)); \
}
#endif /* JAVA_SIGNAL_H */