| 1 | // i386-signal.h - Catch runtime signals and turn them into exceptions
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| 2 | // on an i386 based Linux system.
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| 3 |
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| 4 | /* Copyright (C) 1998, 1999, 2001, 2002 Free Software Foundation
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| 5 |
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| 6 | This file is part of libgcj.
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| 7 |
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| 8 | This software is copyrighted work licensed under the terms of the
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| 9 | Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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| 10 | details. */
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| 11 |
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| 12 |
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| 13 | #ifndef JAVA_SIGNAL_H
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| 14 | #define JAVA_SIGNAL_H 1
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| 15 |
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| 16 | #include <signal.h>
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| 17 | #include <sys/syscall.h>
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| 18 |
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| 19 | #define HANDLE_SEGV 1
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| 20 | #define HANDLE_FPE 1
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| 21 |
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| 22 | #define SIGNAL_HANDLER(_name) \
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| 23 | static void _name (int _dummy)
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| 24 |
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| 25 | #define MAKE_THROW_FRAME(_exception) \
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| 26 | do \
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| 27 | { \
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| 28 | void **_p = (void **)&_dummy; \
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| 29 | struct sigcontext_struct *_regs = (struct sigcontext_struct *)++_p; \
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| 30 | \
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| 31 | /* Advance the program counter so that it is after the start of the \
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| 32 | instruction: the x86 exception handler expects \
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| 33 | the PC to point to the instruction after a call. */ \
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| 34 | _regs->eip += 2; \
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| 35 | \
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| 36 | } \
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| 37 | while (0)
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| 38 |
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| 39 | #define HANDLE_DIVIDE_OVERFLOW \
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| 40 | do \
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| 41 | { \
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| 42 | void **_p = (void **)&_dummy; \
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