glibc/sysdeps/i386/i686/mempcpy.S
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

66 lines
1.7 KiB
ArmAsm

/* Copy memory block and return pointer to following byte.
For Intel 80x86, x>=6.
This file is part of the GNU C Library.
Copyright (C) 1998-2021 Free Software Foundation, Inc.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
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
<https://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include "asm-syntax.h"
#define PARMS 4 /* no space for saved regs */
#define RTN PARMS
#define DEST RTN
#define SRC DEST+4
#define LEN SRC+4
.text
#if defined PIC && IS_IN (libc)
ENTRY_CHK (__mempcpy_chk)
movl 12(%esp), %eax
cmpl %eax, 16(%esp)
jb HIDDEN_JUMPTARGET (__chk_fail)
END_CHK (__mempcpy_chk)
#endif
ENTRY (__mempcpy)
movl LEN(%esp), %ecx
movl %edi, %eax
cfi_register (edi, eax)
movl DEST(%esp), %edi
movl %esi, %edx
cfi_register (esi, edx)
movl SRC(%esp), %esi
cld
shrl $1, %ecx
jnc 1f
movsb
1: shrl $1, %ecx
jnc 2f
movsw
2: rep
movsl
xchgl %edi, %eax
cfi_restore (edi)
movl %edx, %esi
cfi_restore (esi)
ret
END (__mempcpy)
libc_hidden_def (__mempcpy)
weak_alias (__mempcpy, mempcpy)
libc_hidden_builtin_def (mempcpy)