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configure.host [...]: Set can_unwind_signal=yes.

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* configure.host [s390*-linux*]: Set can_unwind_signal=yes.
* configure.in [s390*-*-linux*]: Do not define HAVE_BACKTRACE.
Set SIGNAL_HANDLER=include/s390-linux.h.
* configure: Regenerate.
* include/s390-linux.h: New file.

From-SVN: r54012
This commit is contained in:
Ulrich Weigand 2002-05-29 18:36:50 +00:00 • committed by Ulrich Weigand
parent 2274b31a3c
commit e793a7140e
5 changed files with 305 additions and 206 deletions
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8
libjava/ChangeLog
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@ -1,3 +1,11 @@
2002-05-29 Ulrich Weigand <uweigand@de.ibm.com>
* configure.host [s390*-linux*]: Set can_unwind_signal=yes.
* configure.in [s390*-*-linux*]: Do not define HAVE_BACKTRACE.
Set SIGNAL_HANDLER=include/s390-linux.h.
* configure: Regenerate.
* include/s390-linux.h: New file.
2002-05-24 Bryce McKinlay <bryce@waitaki.otago.ac.nz>
* java/lang/natThrowable.cc (fillInStackTrace): Use "stackTraceBytes",

418
libjava/configure vendored
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File diff suppressed because it is too large Load diff

1
libjava/configure.host
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@ -125,6 +125,7 @@ case "${host}" in
i[34567]86*-linux* | \
powerpc*-linux* | \
alpha*-linux* | \
s390*-linux* | \
sparc*-linux* | \
ia64-*)
can_unwind_signal=yes

6
libjava/configure.in
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@ -508,6 +508,9 @@ else
ia64-*-linux*)
# Has broken backtrace()
;;
s390*-*-linux*)
# Has broken backtrace()
;;
*)
AC_DEFINE(HAVE_BACKTRACE)
;;
@ -896,6 +899,9 @@ case "${host}" in
alpha*-*-linux*)
SIGNAL_HANDLER=include/dwarf2-signal.h
;;
s390*-*-linux*)
SIGNAL_HANDLER=include/s390-signal.h
;;
sparc*-*-linux*)
SIGNAL_HANDLER=include/dwarf2-signal.h
;;

78
libjava/include/s390-signal.h Normal file
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@ -0,0 +1,78 @@
// 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 \
{ \
nullp = new java::lang::NullPointerException (); \
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 \
{ \
arithexception = new java::lang::ArithmeticException \
(JvNewStringLatin1 ("/ by zero")); \
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 */