#12: clear locals at vm init

Some systems do not bzero the stack memory. Fixes some errors found with valgrind and AddressSanitizer settuple, i.e. test/classes/monkey.pn works now
perl11 · Feb 24, 2013 · 0275bfa · 0275bfa
1 parent f11bc3c
commit 0275bfa
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/core/vm.c b/core/vm.c
@@ -254,6 +254,8 @@ PN potion_vm(Potion *P, PN proto, PN self, PN vargs, PN_SIZE upc, PN *upargs) {
 
   if (pos == 0) {
     reg[-1] = reg[0] = self;
+    if (f->localsize)
+      memset((void*)locals, 0, sizeof(*locals) * f->localsize);
     if (upc > 0 && upargs != NULL) {
       PN_SIZE i;
       for (i = 0; i < upc; i++) {