medfall

commit 047d0ce624225b8f313542379fb762a80d935e65
parent daadb73a124bbe701384f36e4703853f09ced95c
Author: Michael Savage <mikejsavage@gmail.com>
Date:   Tue Nov  8 22:22:14 +0200

Only add signal handlers if GDB isn't already attached

Diffstat:
autogdb.h
 | 
20
+++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/autogdb.h b/autogdb.h
@@ -71,15 +71,6 @@ static void prompt_to_run_gdb( int signal ) {
 	}
 }
 
-static void install_debug_signal_handlers( bool debug_on_sigint ) {
-	if( debug_on_sigint ) {
-		signal( SIGINT, prompt_to_run_gdb );
-	}
-	signal( SIGILL, prompt_to_run_gdb );
-	signal( SIGABRT, prompt_to_run_gdb );
-	signal( SIGSEGV, prompt_to_run_gdb );
-}
-
 static bool being_debugged() {
 	pid_t parent_pid = getpid();
 	pid_t child_pid = fork();
@@ -111,4 +102,15 @@ static bool being_debugged() {
 	return WEXITSTATUS( status ) == 1;
 }
 
+static void install_debug_signal_handlers( bool debug_on_sigint ) {
+	if( being_debugged() ) return;
+
+	if( debug_on_sigint ) {
+		signal( SIGINT, prompt_to_run_gdb );
+	}
+	signal( SIGILL, prompt_to_run_gdb );
+	signal( SIGABRT, prompt_to_run_gdb );
+	signal( SIGSEGV, prompt_to_run_gdb );
+}
+
 #endif // _AUTOGDB_H_