Fix signal handling for services on abort/exit

Change-Id: I970a25ae0dd52f0d928fda376296e7b39e3e17eb

lib/libc/misc/stack_protector.c

@@ -86,7 +86,6 @@ __fail(const char *msg)
 #ifdef _LIBC
 	struct syslog_data sdata = SYSLOG_DATA_INIT;
 	struct sigaction sa;
-#endif
 	sigset_t mask;
 
 	/* Immediately block all signal handlers from running code */
@@ -94,7 +93,6 @@ __fail(const char *msg)
 	(void)sigdelset(&mask, SIGABRT);
 	(void)sigprocmask(SIG_BLOCK, &mask, NULL);
 
-#ifdef _LIBC
 	/* This may fail on a chroot jail... */
 	syslog_ss(LOG_CRIT, &sdata, "%s", msg);
 #else

lib/libc/stdlib/abort.c

@@ -43,6 +43,7 @@ __RCSID("$NetBSD: abort.c,v 1.15 2012/06/08 11:15:26 abs Exp $");
 #include <stdlib.h>
 #include <unistd.h>
 
+#if defined(_LIBC)
 extern void (*__cleanup)(void);
 static int aborting = 0;
 
@@ -82,3 +83,10 @@ abort(void)
 	(void)raise(SIGABRT);
 	_exit(1);
 }
+#else
+void
+abort(void)
+{
+	exit(1);
+}
+#endif /* defined(_LIBC) */