69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
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/* hppa-signal.h - Catch runtime signals and turn them into exceptions,
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on a HP-UX 11 PA system. */
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/* Copyright (C) 2006 Free Software Foundation
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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 file is really more of a specification. The rest of the system
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should be arranged so that this Just Works. */
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#ifndef JAVA_SIGNAL_H
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# define JAVA_SIGNAL_H 1
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#include <sys/types.h>
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#include <signal.h>
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#include <sys/syscall.h>
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#include <unistd.h>
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# define HANDLE_SEGV 1
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# undef HANDLE_FPE
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#define SIGNAL_HANDLER(_name) \
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static void _name (int _dummy __attribute__ ((unused)), \
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siginfo_t *_info __attribute__ ((__unused__)), \
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void *arg __attribute__ ((__unused__)))
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#define MAKE_THROW_FRAME(_exception) \
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do \
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{ \
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ucontext_t *_context = (ucontext_t *) arg; \
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(void)_dummy; \
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(void)_info; \
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mcontext_t *mc = &(_context->uc_mcontext); \
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SetSSReg (mc, ss_pcoq_head, GetSSReg (mc, ss_pcoq_tail)); \
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SetSSReg (mc, ss_pcsq_head, GetSSReg (mc, ss_pcsq_tail)); \
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/* This part is not quit right if the head pc was pointing \
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at a branch. The tail needs to be adjusted to the branch \
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target if the branch is taken. The tail space register \
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may need adjustment as well if the branch is an interspace \
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branch. */ \
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SetSSReg (mc, ss_pcoq_tail, (GetSSReg (mc, ss_pcoq_tail) + 4)); \
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\
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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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struct sigaction sa; \
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sa.sa_sigaction = catch_segv; \
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sigemptyset (&sa.sa_mask); \
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sa.sa_flags = SA_SIGINFO | SA_NODEFER; \
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sigaction (SIGSEGV, &sa, NULL); \
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} while (0)
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# define INIT_FPE \
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do { \
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struct sigaction sa; \
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sa.sa_sigaction = catch_fpe; \
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sigemptyset (&sa.sa_mask); \
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sa.sa_flags = SA_SIGINFO | SA_NODEFER; \
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sigaction (SIGFPE, &sa, NULL); \
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} while (0)
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#endif /* JAVA_SIGNAL_H */
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