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21635bd688
1999-05-21 Andrew Haley <aph@cygnus.com>
* include/sparc-signal.h (INIT_FPE, INIT_SEGV): SA_NODEFER added
to signal options to allow the same exceptions to be rethrown
later.
From-SVN: r27079
65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
// sparc-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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#ifndef JAVA_SIGNAL_H
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#define JAVA_SIGNAL_H 1
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#include <signal.h>
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#include <ucontext.h>
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#define HANDLE_SEGV 1
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#define HANDLE_FPE 1
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#define SIGNAL_HANDLER(_name) \
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static void _name (int _dummy, siginfo_t *_info, ucontext_t *_context)
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#define FLUSH_REGISTER_WINDOWS \
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asm volatile ("ta 3");
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#define MAKE_THROW_FRAME \
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do \
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{ \
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(void)_dummy; \
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(void)_info; \
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register int sp = _context->uc_mcontext.gregs[REG_SP]; \
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register int retaddr = _context->uc_mcontext.gregs[REG_O7]; \
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FLUSH_REGISTER_WINDOWS; \
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asm volatile ("mov %0, %%i6; mov %1, %%i7" \
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: : "r"(sp), "r"(retaddr)); \
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} \
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while (0)
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#define INIT_SEGV \
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do \
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{ \
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nullp = new java::lang::NullPointerException (); \
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struct sigaction act; \
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act.sa_sigaction = catch_segv; \
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act.sa_flags = SA_SIGINFO | SA_NODEFER; \
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sigemptyset (&act.sa_mask); \
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sigaction (SIGSEGV, &act, NULL); \
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} \
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while (0)
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#define INIT_FPE \
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do \
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{ \
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arithexception = new java::lang::ArithmeticException \
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(JvNewStringLatin1 ("/ by zero")); \
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struct sigaction act; \
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act.sa_flags = SA_SIGINFO | SA_NODEFER; \
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act.sa_sigaction = catch_fpe; \
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sigemptyset (&act.sa_mask); \
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sigaction (SIGFPE, &act, NULL); \
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} \
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while (0)
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#endif /* JAVA_SIGNAL_H */
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