commit fd052bf63a2ee8e8aff9bb9a51ce7c5f744561f4
author Riku Voipio <riku.voipio@nokia.com> Mon Jan 25 14:30:49 2010 +0200
committer Aurelien Jarno <aurelien@aurel32.net> Sat Feb 06 17:19:43 2010 +0100
tree 9107abec60f02e66ade807fa75620667dc3c49dd
parent cab1b4bdc7d42759e0487e73cc19946e77c82a3a

linux-user: remove signal handler before calling abort()

Qemu may hang in host_signal_handler after qemu has done a
seppuku with cpu_abort(). But at this stage we are not really
interested in target process coredump anymore, so unregister
host_signal_handler to die grafefully.

Signed-off-by: Riku Voipio <riku.voipio@nokia.com>

exec.c

diff --git a/exec.c b/exec.c
index 461bbff..b0caf7c 100644
--- a/exec.c
+++ b/exec.c
@@ -40,6 +40,7 @@
 #include "kvm.h"
 #if defined(CONFIG_USER_ONLY)
 #include <qemu.h>
+#include <signal.h>
 #endif
 
 //#define DEBUG_TB_INVALIDATE
@@ -1692,6 +1693,14 @@
     }
     va_end(ap2);
     va_end(ap);
+#if defined(CONFIG_USER_ONLY)
+    {
+        struct sigaction act;
+        sigfillset(&act.sa_mask);
+        act.sa_handler = SIG_DFL;
+        sigaction(SIGABRT, &act, NULL);
+    }
+#endif
     abort();
 }