diff options
Diffstat (limited to 'string/explicit_bzero.c')
-rw-r--r-- | string/explicit_bzero.c | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/string/explicit_bzero.c b/string/explicit_bzero.c deleted file mode 100644 index 8dadf45ea8..0000000000 --- a/string/explicit_bzero.c +++ /dev/null @@ -1,38 +0,0 @@ -/* Erasure of sensitive data, generic implementation. - Copyright (C) 2016-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -/* An assembler implementation of explicit_bzero can be created as an - assembler alias of an optimized bzero implementation. - Architecture-specific implementations also need to define - __explicit_bzero_chk. */ - -#include <string.h> - -/* glibc-internal users use __explicit_bzero_chk, and explicit_bzero - redirects to that. */ -#undef explicit_bzero - -/* Set LEN bytes of S to 0. The compiler will not delete a call to - this function, even if S is dead after the call. */ -void -explicit_bzero (void *s, size_t len) -{ - memset (s, '\0', len); - /* Compiler barrier. */ - asm volatile ("" ::: "memory"); -} |