* missing/explicit_bzero.c: new file. define explicit_bzero.

* common.mk: add a rule for explicit.o.
* configure.in: detect explicit_bzero and memset_s.
* include/ruby/missing.h: add explicit_bzero.
* random.c (init_randomseed): use explicit_bzero() instead of
  memset(). memset could be eliminated by compiler optimization.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52806 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/random.c b/random.c
index 55a6a6fc27..b0f638de95 100644
--- a/random.c
+++ b/random.c
@@ -1456,7 +1456,7 @@ init_randomseed(struct MT *mt, uint32_t initial[DEFAULT_SEED_CNT])
     fill_random_seed(initial);
     init_by_array(mt, initial, DEFAULT_SEED_CNT);
     seed = make_seed_value(initial);
-    memset(initial, 0, DEFAULT_SEED_LEN);
+    explicit_bzero(initial, DEFAULT_SEED_LEN);
     return seed;
 }