From 0594c8a04bcd7a9afc1dc658459ce5da83bcf0f3 Mon Sep 17 00:00:00 2001 From: kosaki Date: Tue, 1 Dec 2015 00:35:59 +0000 Subject: * missing/explicit_bzero.c: add a few comment. * missing/explicit_bzero.c: add disabling optimization on gcc. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52822 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- ChangeLog | 8 ++++++++ missing/explicit_bzero.c | 9 +++++++++ 2 files changed, 17 insertions(+) diff --git a/ChangeLog b/ChangeLog index f6c4ffd2df..7e94c48009 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,11 @@ +Tue Dec 1 09:35:29 2015 KOSAKI Motohiro + + * missing/explicit_bzero.c: add a few comment. + +Tue Dec 1 09:31:19 2015 KOSAKI Motohiro + + * missing/explicit_bzero.c: add disabling optimization on gcc. + Tue Dec 1 07:50:33 2015 Eric Wong * missing/explicit_bzero.c: new file. define explicit_bzero. diff --git a/missing/explicit_bzero.c b/missing/explicit_bzero.c index f140acb374..c89bdbc0a8 100644 --- a/missing/explicit_bzero.c +++ b/missing/explicit_bzero.c @@ -7,6 +7,15 @@ Linux has none. *Sigh* */ +/* + * Following URL explain why memset_s is added to the standard. + * http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1381.pdf + */ + +#ifdef __GNUC__ +#pragma GCC optimize ("O0") +#endif + #ifndef HAVE_EXPLICIT_BZERO /* Similar to bzero(), but have a guarantee not to be eliminated from compiler optimization. */ -- cgit v1.2.3