diff options
Diffstat (limited to 'debug/explicit_bzero_chk.c')
-rw-r--r-- | debug/explicit_bzero_chk.c | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/debug/explicit_bzero_chk.c b/debug/explicit_bzero_chk.c deleted file mode 100644 index 2680cc344d..0000000000 --- a/debug/explicit_bzero_chk.c +++ /dev/null @@ -1,44 +0,0 @@ -/* Generic implementation of __explicit_bzero_chk. - Copyright (C) 1991-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Torbjorn Granlund (tege@sics.se). - - 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/>. */ - -/* This is the generic definition of __explicit_bzero_chk. The - __explicit_bzero_chk symbol is used as the implementation of - explicit_bzero throughout glibc. If this file is overriden by an - architecture, both __explicit_bzero_chk and - __explicit_bzero_chk_internal have to be defined (the latter not as - an IFUNC). */ - -#include <string.h> - -void -__explicit_bzero_chk (void *dst, size_t len, size_t dstlen) -{ - /* Inline __memset_chk to avoid a PLT reference to __memset_chk. */ - if (__glibc_unlikely (dstlen < len)) - __chk_fail (); - memset (dst, '\0', len); - /* Compiler barrier. */ - asm volatile ("" ::: "memory"); -} - -/* libc-internal references use the hidden - __explicit_bzero_chk_internal symbol. This is necessary if - __explicit_bzero_chk is implemented as an IFUNC because some - targets do not support hidden references to IFUNC symbols. */ -strong_alias (__explicit_bzero_chk, __explicit_bzero_chk_internal) |