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linux64.h (MD_FALLBACK_FRAME_STATE_FOR): Corrected to handle kernels with changed ucontext.

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* config/rs6000/linux64.h (MD_FALLBACK_FRAME_STATE_FOR)
	[!__powerpc64__]: Corrected to handle kernels with changed ucontext.

	* include/powerpc-signal.h: Add #ifndef __powerpc64__ around the
	header.  For __powerpc64__ provide the default-signal.h definitions
	for now.
	* include/x86_64-signal.h [!__x86_64__]: Include java-signal-aux.h
	instead of the dummy definitions.
	* configure.host (x86_64-*): Remove CHECKREFSPEC, add DIVIDESPEC.
	(powerpc64*-*): Remove with_libffi_default.
	Only add -mminimal-toc for 64-bit compilations.
	* configure.in: Use powerpc-signal.h on powerpc64 as well.
	(x86_64-*-linux*): Set SIGNAL_HANDLER_AUX.
	Link SIGNAL_HANDLER_AUX to include/java-signal-aux.h.
	* configure: Rebuilt.

From-SVN: r76437
This commit is contained in:
Jakub Jelinek 2004-01-23 18:32:16 +01:00 committed by Jakub Jelinek
parent 0a944ef648
commit 02731d29be
8 changed files with 89 additions and 39 deletions
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5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2004-01-21 Jakub Jelinek <jakub@redhat.com>
* config/rs6000/linux64.h (MD_FALLBACK_FRAME_STATE_FOR)
[!__powerpc64__]: Corrected to handle kernels with changed ucontext.
2004-01-23 Eric Botcazou <ebotcazou@act-europe.fr>
Olivier Hainque <hainque@act-europe.fr>

26
gcc/config/rs6000/linux64.h
View File

@ -550,13 +550,27 @@ while (0)
#ifdef IN_LIBGCC2
#include <signal.h>
#ifdef __powerpc64__
#include <sys/ucontext.h>
#ifdef __powerpc64__
enum { SIGNAL_FRAMESIZE = 128 };
#else
/* During the 2.5 kernel series the kernel ucontext was changed, but
the new layout is compatible with the old one, so we just define
and use the old one here for simplicity and compatibility. */
struct kernel_old_ucontext {
unsigned long uc_flags;
struct ucontext *uc_link;
stack_t uc_stack;
struct sigcontext_struct uc_mcontext;
sigset_t uc_sigmask;
};
enum { SIGNAL_FRAMESIZE = 64 };
#endif
#endif
#ifdef __powerpc64__
@ -674,7 +688,7 @@ enum { SIGNAL_FRAMESIZE = 64 };
struct siginfo *pinfo; \
void *puc; \
struct siginfo info; \
struct ucontext uc; \
struct kernel_old_ucontext uc; \
} *rt_ = (CONTEXT)->cfa; \
sc_ = &rt_->uc.uc_mcontext; \
} \
@ -698,15 +712,9 @@ enum { SIGNAL_FRAMESIZE = 64 };
(FS)->regs.reg[LINK_REGISTER_REGNUM].loc.offset \
= (long)&(sc_->regs->link) - new_cfa_; \
\
/* The unwinder expects the IP to point to the following insn, \
whereas the kernel returns the address of the actual \
faulting insn. We store NIP+4 in an unused register slot to \
get the same result for multiple evaluation of the same signal \
frame. */ \
sc_->regs->gpr[47] = sc_->regs->nip + 4; \
(FS)->regs.reg[CR0_REGNO].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[CR0_REGNO].loc.offset \
= (long)&(sc_->regs->gpr[47]) - new_cfa_; \
= (long)&(sc_->regs->nip) - new_cfa_; \
(FS)->retaddr_column = CR0_REGNO; \
goto SUCCESS; \
} while (0)

15
libjava/ChangeLog
View File

@ -1,3 +1,18 @@
2004-01-21 Jakub Jelinek <jakub@redhat.com>
* include/powerpc-signal.h: Add #ifndef __powerpc64__ around the
header. For __powerpc64__ provide the default-signal.h definitions
for now.
* include/x86_64-signal.h [!__x86_64__]: Include java-signal-aux.h
instead of the dummy definitions.
* configure.host (x86_64-*): Remove CHECKREFSPEC, add DIVIDESPEC.
(powerpc64*-*): Remove with_libffi_default.
Only add -mminimal-toc for 64-bit compilations.
* configure.in: Use powerpc-signal.h on powerpc64 as well.
(x86_64-*-linux*): Set SIGNAL_HANDLER_AUX.
Link SIGNAL_HANDLER_AUX to include/java-signal-aux.h.
* configure: Rebuilt.
2004-01-23 Michael Koch <konqueror@gmx.de>
* gnu/java/nio/FileLockImpl.java: Compile fixes.

13
libjava/configure vendored
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@ -9015,6 +9015,7 @@ test -n "$PERL" || PERL="false"
SYSDEP_SOURCES=
SIGNAL_HANDLER_AUX=
case "${host}" in
i?86-*-linux*)
@ -9030,7 +9031,7 @@ case "${host}" in
ia64-*-linux*)
SIGNAL_HANDLER=include/dwarf2-signal.h
;;
powerpc-*-linux*)
powerpc*-*-linux*)
SIGNAL_HANDLER=include/powerpc-signal.h
;;
alpha*-*-linux*)
@ -9041,6 +9042,7 @@ case "${host}" in
;;
x86_64*-*-linux*)
SIGNAL_HANDLER=include/x86_64-signal.h
SIGNAL_HANDLER_AUX=include/i386-signal.h
;;
sparc*-*-linux*)
SIGNAL_HANDLER=include/dwarf2-signal.h
@ -9062,6 +9064,7 @@ esac
# If we're using sjlj exceptions, forget what we just learned.
if test "$enable_sjlj_exceptions" = yes; then
SIGNAL_HANDLER=include/default-signal.h
SIGNAL_HANDLER_AUX=
fi
# Define here any compiler flags that you need in order to make backtrace() work.
@ -9075,6 +9078,10 @@ esac
if test -z "$SIGNAL_HANDLER_AUX"; then
SIGNAL_HANDLER_AUX=$SIGNAL_HANDLER
fi
if test "${multilib}" = "yes"; then
@ -9573,8 +9580,8 @@ fi; done
EOF
cat >> $CONFIG_STATUS <<EOF
ac_sources="include/$PLATFORMH java/io/natFile${FILE-${PLATFORM}}.cc java/io/natFileDescriptor${FILE-${PLATFORM}}.cc java/lang/${PLATFORM}Process.java java/lang/nat${PLATFORM}Process.cc java/net/natInetAddress${PLATFORMNET}.cc java/net/natNetworkInterface${PLATFORMNET}.cc gnu/java/net/natPlainSocketImpl${PLATFORMNET}.cc gnu/java/net/natPlainDatagramSocketImpl${PLATFORMNET}.cc gnu/java/nio/natPipeImpl${PLATFORM}.cc gnu/java/nio/natSelectorImpl${PLATFORM}.cc include/$GCHDR include/$THREADH sysdep/$sysdeps_dir/locks.h $SIGNAL_HANDLER"
ac_dests="include/platform.h java/io/natFile.cc java/io/natFileDescriptor.cc java/lang/ConcreteProcess.java java/lang/natConcreteProcess.cc java/net/natInetAddress.cc java/net/natNetworkInterface.cc gnu/java/net/natPlainSocketImpl.cc gnu/java/net/natPlainDatagramSocketImpl.cc gnu/java/nio/natPipeImpl.cc gnu/java/nio/natSelectorImpl.cc include/java-gc.h include/java-threads.h sysdep/locks.h include/java-signal.h"
ac_sources="include/$PLATFORMH java/io/natFile${FILE-${PLATFORM}}.cc java/io/natFileDescriptor${FILE-${PLATFORM}}.cc java/lang/${PLATFORM}Process.java java/lang/nat${PLATFORM}Process.cc java/net/natInetAddress${PLATFORMNET}.cc java/net/natNetworkInterface${PLATFORMNET}.cc gnu/java/net/natPlainSocketImpl${PLATFORMNET}.cc gnu/java/net/natPlainDatagramSocketImpl${PLATFORMNET}.cc gnu/java/nio/natPipeImpl${PLATFORM}.cc gnu/java/nio/natSelectorImpl${PLATFORM}.cc include/$GCHDR include/$THREADH sysdep/$sysdeps_dir/locks.h $SIGNAL_HANDLER $SIGNAL_HANDLER_AUX"
ac_dests="include/platform.h java/io/natFile.cc java/io/natFileDescriptor.cc java/lang/ConcreteProcess.java java/lang/natConcreteProcess.cc java/net/natInetAddress.cc java/net/natNetworkInterface.cc gnu/java/net/natPlainSocketImpl.cc gnu/java/net/natPlainDatagramSocketImpl.cc gnu/java/nio/natPipeImpl.cc gnu/java/nio/natSelectorImpl.cc include/java-gc.h include/java-threads.h sysdep/locks.h include/java-signal.h include/java-signal-aux.h"
EOF
cat >> $CONFIG_STATUS <<\EOF

10
libjava/configure.host
View File

@ -99,11 +99,11 @@ case "${host}" in
slow_pthread_self=yes
;;
x86_64-*)
CHECKREFSPEC="%{m32:-fcheck-references}"
sysdeps_dir=x86-64
libgcj_flags="${libgcj_flags} -ffloat-store -fno-omit-frame-pointer"
libgcj_cxxflags=
libgcj_cflags=
DIVIDESPEC=-f%{m32:no-}use-divide-subroutine
enable_hash_synchronization_default=yes
slow_pthread_self=yes
libgcj_interpreter=yes
@ -116,11 +116,11 @@ case "${host}" in
IEEESPEC=-mieee
;;
powerpc64*-*)
with_libffi_default=yes
libgcj_interpreter=yes
libgcj_flags="${libgcj_flags} -mminimal-toc"
# this may not be correct
sysdeps_dir=powerpc
libgcj_interpreter=yes
if [ x`$CC -print-multi-os-directory` = x../lib64 ]; then
libgcj_flags="${libgcj_flags} -mminimal-toc"
fi
enable_hash_synchronization_default=yes
slow_pthread_self=yes
;;

12
libjava/configure.in
View File

@ -1128,6 +1128,7 @@ AC_FUNC_MMAP
AC_CHECK_PROGS(PERL, perl, false)
SYSDEP_SOURCES=
SIGNAL_HANDLER_AUX=
case "${host}" in
i?86-*-linux*)
@ -1143,7 +1144,7 @@ case "${host}" in
ia64-*-linux*)
SIGNAL_HANDLER=include/dwarf2-signal.h
;;
powerpc-*-linux*)
powerpc*-*-linux*)
SIGNAL_HANDLER=include/powerpc-signal.h
;;
alpha*-*-linux*)
@ -1154,6 +1155,7 @@ case "${host}" in
;;
x86_64*-*-linux*)
SIGNAL_HANDLER=include/x86_64-signal.h
SIGNAL_HANDLER_AUX=include/i386-signal.h
;;
sparc*-*-linux*)
SIGNAL_HANDLER=include/dwarf2-signal.h
@ -1175,6 +1177,7 @@ esac
# If we're using sjlj exceptions, forget what we just learned.
if test "$enable_sjlj_exceptions" = yes; then
SIGNAL_HANDLER=include/default-signal.h
SIGNAL_HANDLER_AUX=
fi
# Define here any compiler flags that you need in order to make backtrace() work.
@ -1188,7 +1191,12 @@ AC_SUBST(BACKTRACESPEC)
AC_SUBST(SYSDEP_SOURCES)
AC_LINK_FILES($SIGNAL_HANDLER, include/java-signal.h)
if test -z "$SIGNAL_HANDLER_AUX"; then
SIGNAL_HANDLER_AUX=$SIGNAL_HANDLER
fi
AC_LINK_FILES($SIGNAL_HANDLER $SIGNAL_HANDLER_AUX,
include/java-signal.h include/java-signal-aux.h)
if test "${multilib}" = "yes"; then
multilib_arg="--enable-multilib"

30
libjava/include/powerpc-signal.h
View File

@ -13,13 +13,15 @@ details. */
#ifndef JAVA_SIGNAL_H
# define JAVA_SIGNAL_H 1
# include <signal.h>
# include <sys/syscall.h>
# ifndef __powerpc64__
# define HANDLE_SEGV 1
# undef HANDLE_FPE
# include <signal.h>
# include <sys/syscall.h>
# define SIGNAL_HANDLER(_name) \
# define HANDLE_SEGV 1
# undef HANDLE_FPE
# define SIGNAL_HANDLER(_name) \
static void _name (int /* _signal */, struct sigcontext *_sc)
/* PPC either leaves PC pointing at a faulting instruction or the
@ -27,7 +29,7 @@ details. */
the former, so we adjust the saved PC to point to the following
instruction. This is what the handler in libgcc expects. */
# define MAKE_THROW_FRAME(_exception) \
# define MAKE_THROW_FRAME(_exception) \
do \
{ \
_sc->regs->nip += 4; \
@ -58,7 +60,7 @@ struct kernel_old_sigaction {
void (*k_sa_restorer) (void);
};
# define INIT_SEGV \
# define INIT_SEGV \
do \
{ \
struct kernel_old_sigaction kact; \
@ -69,7 +71,7 @@ do \
} \
while (0)
# define INIT_FPE \
# define INIT_FPE \
do \
{ \
struct kernel_old_sigaction kact; \
@ -78,7 +80,15 @@ do \
kact.k_sa_flags = 0; \
syscall (SYS_sigaction, SIGFPE, &kact, NULL); \
} \
while (0)
while (0)
# else
# undef HANDLE_SEGV
# undef HANDLE_FPE
# define INIT_SEGV do {} while (0)
# define INIT_FPE do {} while (0)
# endif
#endif /* JAVA_SIGNAL_H */

17
libjava/include/x86_64-signal.h
View File

@ -10,14 +10,14 @@ Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
#ifdef __x86_64__
#ifndef JAVA_SIGNAL_H
#define JAVA_SIGNAL_H 1
#include <signal.h>
#include <sys/syscall.h>
#ifdef __x86_64__
#define HANDLE_SEGV 1
#define SIGNAL_HANDLER(_name) \
@ -80,16 +80,13 @@ while (0)
* go away if all systems ever have pthreads libraries that are
* compiled with unwind info. */
#endif /* JAVA_SIGNAL_H */
#else /* __x86_64__ */
/* This is for the 32-bit subsystem on on x86-64. Catching signals
doesn't yet work on that target. */
/* This is for the 32-bit subsystem on on x86-64. */
#undef HANDLE_SEGV
#undef HANDLE_FPE
#define INIT_SEGV do {} while (0)
#define INIT_FPE do {} while (0)
#define sigcontext_struct sigcontext
#include <java-signal-aux.h>
#endif /* __x86_64__ */
#endif /* JAVA_SIGNAL_H */