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-rw-r--r--REORG.TODO/sysdeps/i386/i686/mempcpy.S65
1 files changed, 65 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/i386/i686/mempcpy.S b/REORG.TODO/sysdeps/i386/i686/mempcpy.S
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index 0000000000..31cb4efdb2
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+++ b/REORG.TODO/sysdeps/i386/i686/mempcpy.S
@@ -0,0 +1,65 @@
+/* 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) 1998-2017 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
+ <http://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)