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author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
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committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /debug/explicit_bzero_chk.c | |
parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
download | glibc-zack/build-layout-experiment.tar glibc-zack/build-layout-experiment.tar.gz glibc-zack/build-layout-experiment.tar.bz2 glibc-zack/build-layout-experiment.zip |
Prepare for radical source tree reorganization.zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
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) |