x86_64-signal.h: Add simple handler for x86_64 32-bit mode.

2003-01-22  Andrew Haley  <aph@redhat.com>

        * x86_64-signal.h: Add simple handler for x86_64 32-bit mode.
        * configure.host (CHECKREFSPEC): Define for x86_64.

From-SVN: r61600

libjava/ChangeLog

+2003-01-22  Andrew Haley  <aph@redhat.com>
+
+        * x86_64-signal.h: Add simple handler for x86_64 32-bit mode.
+        * configure.host (CHECKREFSPEC): Define for x86_64.
+
 2003-01-21  Tom Tromey  <tromey@redhat.com>
 
 	* java/util/natResourceBundle.cc (getCallingClassLoader): Start

libjava/configure.host

@@ -86,6 +86,7 @@ case "${host}" in
  	enable_getenv_properties_default=no
 	;;
   i686-*|i586-*|i486-*|i386-*)
+      CHECKREFSPEC="%{m32:-fcheck-references}"
 	sysdeps_dir=i386
 	libgcj_flags="${libgcj_flags} -ffloat-store"
 	libgcj_interpreter=yes

libjava/include/x86_64-signal.h

@@ -16,6 +16,8 @@ details.  */
 #include <signal.h>
 #include <sys/syscall.h>
 
+#ifdef __x86_64__
+
 #define HANDLE_SEGV 1
 
 #define SIGNAL_HANDLER(_name)	\
@@ -79,5 +81,16 @@ while (0)
  * go away if all systems ever have pthreads libraries that are
  * compiled with unwind info.  */
 
+#else /* __x86_64__ */
+
+/* This is for the 32-bit subsystem on on x86-64.  Catching signals
+   doesn't yet work on that target.  */
+
+#undef HANDLE_SEGV
+#undef HANDLE_FPE
+
+#define INIT_SEGV   do {} while (0)
+#define INIT_FPE   do {} while (0)
+
+#endif /* __x86_64__ */
 #endif /* JAVA_SIGNAL_H */
-