From ab79053868e99d47cf38fc1c8b2f3aa7a0396452 Mon Sep 17 00:00:00 2001
From: aph <aph@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed, 20 Aug 2003 14:32:16 +0000
Subject: 2003-08-19  Andrew Haley  <aph@redhat.com>

	* prims.cc (unblock_signal): New function.
	(SIGNAL_HANDLER): Use it.
	(SIGNAL_HANDLER): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@70598 138bc75d-0d04-0410-961f-82ee72b054a4
---
 libjava/prims.cc | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'libjava/prims.cc')

diff --git a/libjava/prims.cc b/libjava/prims.cc
index 9f8477334da..8208995460e 100644
--- a/libjava/prims.cc
+++ b/libjava/prims.cc
@@ -122,11 +122,26 @@ void (*_Jv_JVMPI_Notify_THREAD_END) (JVMPI_Event *event);
 #endif
 
 
+/* Unblock a signal.  Unless we do this, the signal may only be sent
+   once.  */
+static void 
+unblock_signal (int signum)
+{
+#ifdef _POSIX_VERSION
+  sigset_t sigs;
+
+  sigemptyset (&sigs);
+  sigaddset (&sigs, signum);
+  sigprocmask (SIG_UNBLOCK, &sigs, NULL);
+#endif
+}
+
 #ifdef HANDLE_SEGV
 SIGNAL_HANDLER (catch_segv)
 {
   java::lang::NullPointerException *nullp 
     = new java::lang::NullPointerException;
+  unblock_signal (SIGSEGV);
   MAKE_THROW_FRAME (nullp);
   throw nullp;
 }
@@ -137,6 +152,7 @@ SIGNAL_HANDLER (catch_fpe)
 {
   java::lang::ArithmeticException *arithexception 
     = new java::lang::ArithmeticException (JvNewStringLatin1 ("/ by zero"));
+  unblock_signal (SIGFPE);
 #ifdef HANDLE_DIVIDE_OVERFLOW
   HANDLE_DIVIDE_OVERFLOW;
 #else
-- 
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