a4e44caa6d
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
39 lines
972 B
C
39 lines
972 B
C
// i386-signal.h - Catch runtime signals and turn them into exceptions.
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/* Copyright (C) 1998, 1999 Cygnus Solutions
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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/* This technique should work for all i386 based Unices which conform
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to iBCS2. This includes all versions of Linux more recent than
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version 1.3 */
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#ifndef JAVA_SIGNAL_H
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#define JAVA_SIGNAL_H 1
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#include <signal.h>
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#define HANDLE_SEGV 1
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#define HANDLE_FPE 1
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#define MAKE_THROW_FRAME(_dummy) \
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{ \
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void **_p = (void **)&_dummy; \
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struct sigcontext_struct *_regs = (struct sigcontext_struct *)++_p; \
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\
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register unsigned long _ebp = _regs->ebp; \
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register unsigned long _eip = _regs->eip; \
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\
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asm volatile ("mov %0, (%%ebp); mov %1, 4(%%ebp)" \
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: : "r"(_ebp), "r"(_eip)); \
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}
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#endif /* JAVA_SIGNAL_H */
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