mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-19 03:58:58 +08:00
bec3e66d1a
2003-06-12 Andrew Haley <aph@redhat.com>
* prims.cc (catch_segv): Create exception in handler.
(catch_fpe): Likewise.
(_Jv_divI, _Jv_remI, _Jv_divJ, _Jv_remJ): Likewise.
(_Jv_ThrowSignal): Remove.
* include/x86_64-signal.h (INIT_SEGV): Delete reference to nullp.
* include/default-signal.h (INIT_SEGV, INIT_FPE): Delete reference
to nullp and arithexception.
* include/dwarf2-signal.h (INIT_SEGV, INIT_FPE): Likewise.
* include/i386-signal.h (INIT_SEGV, INIT_FPE): Likewise.
* include/s390-signal.h (INIT_SEGV, INIT_FPE): Likewise.
* include/sparc-signal.h (INIT_SEGV, INIT_FPE): Likewise.
* include/win32-signal.h (INIT_SEGV, INIT_FPE): Likewise.
From-SVN: r67892
76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
// s390-signal.h - Catch runtime signals and turn them into exceptions
|
|
// on an s390 based Linux system.
|
|
|
|
/* Copyright (C) 2002 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 <sys/syscall.h>
|
|
|
|
#define HANDLE_SEGV 1
|
|
#undef HANDLE_FPE
|
|
|
|
#define SIGNAL_HANDLER(_name) \
|
|
static void _name (int /* _signal */, struct sigcontext _sc)
|
|
|
|
#define MAKE_THROW_FRAME(_exception) \
|
|
do \
|
|
{ \
|
|
/* Advance the program counter so that it is after the start of the \
|
|
instruction: the s390 exception handler expects the PSW to point \
|
|
to the instruction after a call. */ \
|
|
_sc.sregs->regs.psw.addr += 2; \
|
|
\
|
|
} \
|
|
while (0)
|
|
|
|
|
|
/* For an explanation why we cannot simply use sigaction to
|
|
install the handlers, see i386-signal.h. */
|
|
|
|
/* We use old_kernel_sigaction here because we're calling the kernel
|
|
directly rather than via glibc. The sigaction structure that the
|
|
syscall uses is a different shape from the one in userland and not
|
|
visible to us in a header file so we define it here. */
|
|
|
|
struct old_s390_kernel_sigaction {
|
|
void (*k_sa_handler) (int, struct sigcontext);
|
|
unsigned long k_sa_mask;
|
|
unsigned long k_sa_flags;
|
|
void (*sa_restorer) (void);
|
|
};
|
|
|
|
#define INIT_SEGV \
|
|
do \
|
|
{ \
|
|
struct old_s390_kernel_sigaction kact; \
|
|
kact.k_sa_handler = catch_segv; \
|
|
kact.k_sa_mask = 0; \
|
|
kact.k_sa_flags = 0; \
|
|
syscall (SYS_sigaction, SIGSEGV, &kact, NULL); \
|
|
} \
|
|
while (0)
|
|
|
|
#define INIT_FPE \
|
|
do \
|
|
{ \
|
|
struct old_s390_kernel_sigaction kact; \
|
|
kact.k_sa_handler = catch_fpe; \
|
|
kact.k_sa_mask = 0; \
|
|
kact.k_sa_flags = 0; \
|
|
syscall (SYS_sigaction, SIGFPE, &kact, NULL); \
|
|
} \
|
|
while (0)
|
|
|
|
#endif /* JAVA_SIGNAL_H */
|
|
|