* bignum.c (rb_big_realloc): Use VALGRIND_MAKE_MEM_UNDEFINED to

  declare undefined memory area.
  (bignew_1): Ditto.

* internal.h (VALGRIND_MAKE_MEM_DEFINED): Moved from gc.c
  (VALGRIND_MAKE_MEM_UNDEFINED): Ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42392 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 0 deletions

diff --git a/bignum.c b/bignum.c
index 11ae29853d..1f295506d9 100644
--- a/bignum.c
+++ b/bignum.c
@@ -2886,6 +2886,7 @@ rb_big_realloc(VALUE big, long len)
 	    ds = RBIGNUM(big)->as.heap.digits;
 	    RBASIC(big)->flags |= RBIGNUM_EMBED_FLAG;
 	    RBIGNUM_SET_LEN(big, len);
+            (void)VALGRIND_MAKE_MEM_UNDEFINED((void*)RBIGNUM(big)->as.ary, sizeof(RBIGNUM(big)->as.ary));
 	    if (ds) {
 		MEMCPY(RBIGNUM(big)->as.ary, ds, BDIGIT, len);
 		xfree(ds);
@@ -2917,6 +2918,7 @@ bignew_1(VALUE klass, long len, int sign)
     if (len <= RBIGNUM_EMBED_LEN_MAX) {
 	RBASIC(big)->flags |= RBIGNUM_EMBED_FLAG;
 	RBIGNUM_SET_LEN(big, len);
+        (void)VALGRIND_MAKE_MEM_UNDEFINED((void*)RBIGNUM(big)->as.ary, sizeof(RBIGNUM(big)->as.ary));
     }
     else {
 	RBIGNUM(big)->as.heap.digits = ALLOC_N(BDIGIT, len);