diff options
author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
---|---|---|
committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /sysdeps/i386/i686/memset.S | |
parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
download | glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.tar.gz glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.tar.xz glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.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 'sysdeps/i386/i686/memset.S')
-rw-r--r-- | sysdeps/i386/i686/memset.S | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/sysdeps/i386/i686/memset.S b/sysdeps/i386/i686/memset.S deleted file mode 100644 index 24d06178d2..0000000000 --- a/sysdeps/i386/i686/memset.S +++ /dev/null @@ -1,100 +0,0 @@ -/* memset/bzero -- set memory area to CH/0 - Highly optimized version for ix86, x>=6. - Copyright (C) 1999-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999. - - 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/>. */ - -#include <sysdep.h> -#include "asm-syntax.h" - -#define PARMS 4+4 /* space for 1 saved reg */ -#ifdef USE_AS_BZERO -# define DEST PARMS -# define LEN DEST+4 -#else -# define RTN PARMS -# define DEST RTN -# define CHR DEST+4 -# define LEN CHR+4 -#endif - - .text -#if defined SHARED && IS_IN (libc) && !defined USE_AS_BZERO -ENTRY_CHK (__memset_chk) - movl 12(%esp), %eax - cmpl %eax, 16(%esp) - jb HIDDEN_JUMPTARGET (__chk_fail) -END_CHK (__memset_chk) -#endif -ENTRY (memset) - - cld - pushl %edi - cfi_adjust_cfa_offset (4) - movl DEST(%esp), %edx - movl LEN(%esp), %ecx -#ifdef USE_AS_BZERO - xorl %eax, %eax /* fill with 0 */ -#else - movzbl CHR(%esp), %eax -#endif - jecxz 1f - movl %edx, %edi - cfi_rel_offset (edi, 0) - andl $3, %edx - jz 2f /* aligned */ - jp 3f /* misaligned at 3, store just one byte below */ - stosb /* misaligned at 1 or 2, store two bytes */ - decl %ecx - jz 1f -3: stosb - decl %ecx - jz 1f - xorl $1, %edx - jnz 2f /* was misaligned at 2 or 3, now aligned */ - stosb /* was misaligned at 1, store third byte */ - decl %ecx -2: movl %ecx, %edx - shrl $2, %ecx - andl $3, %edx -#ifndef USE_AS_BZERO - imul $0x01010101, %eax -#endif - rep - stosl - movl %edx, %ecx - rep - stosb - -1: -#ifndef USE_AS_BZERO - movl DEST(%esp), %eax /* start address of destination is result */ -#endif - popl %edi - cfi_adjust_cfa_offset (-4) - cfi_restore (edi) - - ret -END (memset) -libc_hidden_builtin_def (memset) - -#if defined SHARED && IS_IN (libc) && !defined __memset_chk \ - && !defined USE_AS_BZERO -strong_alias (__memset_chk, __memset_zero_constant_len_parameter) - .section .gnu.warning.__memset_zero_constant_len_parameter - .string "memset used with constant zero length parameter; this could be due to transposed parameters" -#endif |