Start segv handler in WS. Fix dmidecode targets for basepkg build

Author: mszoek

CoreServices/WindowServer/main.m

@@ -31,6 +31,7 @@
 #define FINISH(x) ret=(x); goto __finish;
 
 extern int optopt;
+static jmp_buf jb;
 
 void *machSvcLoop(void *arg) {
     WindowServer *ws = (__bridge WindowServer *)arg;
@@ -44,6 +45,10 @@
         [ws processKernelQueue];
 } 
 
+static void crashHandler(int sig) {
+    longjmp(jb, SIGSEGV);
+}
+
 int main(int argc, const char *argv[]) {
     NSAutoreleasePool *pool = [NSAutoreleasePool new];
     int logLevel = WS_ERROR;
@@ -82,6 +87,11 @@ int main(int argc, const char *argv[]) {
     signal(SIGTHR, SIG_IGN);
     signal(SIGLIBRT, SIG_IGN);
 
+    if(setjmp(jb) != 0)
+        goto __finish; // sighandler must have caught something - get out
+
+    signal(SIGSEGV, crashHandler);
+
     /* Drop our controlling terminal - we're gonna switch */
     /* This is the recommended but sucky way. Using TIOCNOTTY isn't working */
     pid_t pid = fork();

gnu/usr.bin/dmidecode/Makefile

@@ -161,6 +161,12 @@ uninstall-completion :
 clean :
 	$(RM) *.o $(PROGRAMS) core
 
+# Targets for etcupdate.sh
+installetc:
+buildetc:
+installconfig:
+
+# Targets for buildworld
 includes:
 distribute:
 	$(MAKE) -C ${.CURDIR} DESTDIR=${OBJTOP}/release/dist/base/ install