mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-28 16:35:26 +08:00
714708c8b1
2002-04-19 David S. Miller <davem@redhat.com> * include/dwarf2-signal.h (SIGNAL_HANDLER): Name siginfo_t pointer arg. (MAKE_THROW_FRAME): Define for 32-bit and 64-bit sparc. (INIT_SEGV, INIT_FPE): Use direct __libc_sigaction installation on Sparc too. * include/sparc-signal.h (FLUSH_REGISTER_WINDOWS): Define properly for 64-bit sparc. (MAKE_THROW_FRAME): Use long for sp/retaddr so 64-bit works. * sysdeps/sparc/locks.h: New file. * configure.in (SIGNAL_HANDLER): Set to include/sparc-signal.h on all sparc Solaris configurations. Set to include/dwarf2-signal.h on sparc Linux. * configure: Regenerate * configure.host (can_unwind_signal): sparc*-linux* can do it now. From-SVN: r52575
71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
// sparc-signal.h - Catch runtime signals and turn them into exceptions.
|
|
|
|
/* Copyright (C) 1998, 1999, 2000 Free Software Foundation
|
|
|
|
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. */
|
|
|
|
#ifndef JAVA_SIGNAL_H
|
|
#define JAVA_SIGNAL_H 1
|
|
|
|
#include <signal.h>
|
|
#include <ucontext.h>
|
|
|
|
#define HANDLE_SEGV 1
|
|
#define HANDLE_FPE 1
|
|
|
|
#define SIGNAL_HANDLER(_name) \
|
|
static void _name (int _dummy, siginfo_t *_info, void *arg)
|
|
|
|
#ifdef __arch64__
|
|
#define FLUSH_REGISTER_WINDOWS \
|
|
asm volatile ("flushw");
|
|
#else
|
|
#define FLUSH_REGISTER_WINDOWS \
|
|
asm volatile ("ta 3");
|
|
#endif
|
|
|
|
#define MAKE_THROW_FRAME(_exception) \
|
|
do \
|
|
{ \
|
|
ucontext_t *_context = (ucontext_t *) arg; \
|
|
(void)_dummy; \
|
|
(void)_info; \
|
|
register long sp = _context->uc_mcontext.gregs[REG_SP]; \
|
|
register long retaddr = _context->uc_mcontext.gregs[REG_O7]; \
|
|
FLUSH_REGISTER_WINDOWS; \
|
|
asm volatile ("mov %0, %%i6; mov %1, %%i7" \
|
|
: : "r"(sp), "r"(retaddr)); \
|
|
} \
|
|
while (0)
|
|
|
|
#define INIT_SEGV \
|
|
do \
|
|
{ \
|
|
nullp = new java::lang::NullPointerException (); \
|
|
struct sigaction act; \
|
|
act.sa_sigaction = catch_segv; \
|
|
act.sa_flags = SA_SIGINFO | SA_NODEFER; \
|
|
sigemptyset (&act.sa_mask); \
|
|
sigaction (SIGSEGV, &act, NULL); \
|
|
} \
|
|
while (0)
|
|
|
|
#define INIT_FPE \
|
|
do \
|
|
{ \
|
|
arithexception = new java::lang::ArithmeticException \
|
|
(JvNewStringLatin1 ("/ by zero")); \
|
|
struct sigaction act; \
|
|
act.sa_flags = SA_SIGINFO | SA_NODEFER; \
|
|
act.sa_sigaction = catch_fpe; \
|
|
sigemptyset (&act.sa_mask); \
|
|
sigaction (SIGFPE, &act, NULL); \
|
|
} \
|
|
while (0)
|
|
|
|
#endif /* JAVA_SIGNAL_H */
|