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am 8d79fd1c: Merge "libc x86: Remove index.S, strcpy.S, strchr.S"

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* commit '8d79fd1c94cb021b6852e6f44e27183ec83fe04c':
  libc x86: Remove index.S, strcpy.S, strchr.S
This commit is contained in:
Nick Kralevich 2013-05-24 11:37:30 -07:00 committed by Android Git Automerger
commit cf34265338
3 changed files with 0 additions and 93 deletions
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26
libc/arch-x86/string/index.S
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@ -1,26 +0,0 @@
/* $OpenBSD: index.S,v 1.4 2005/08/07 11:30:38 espie Exp $ */
/*
* Written by J.T. Conklin <jtc@netbsd.org>.
* Public domain.
*/
#include <machine/asm.h>
#ifdef STRCHR
ENTRY(strchr)
#else
ENTRY(index)
#endif
movl 4(%esp),%eax
movb 8(%esp),%cl
.align 2,0x90
L1:
movb (%eax),%dl
cmpb %dl,%cl /* found char??? */
je L2
incl %eax
testb %dl,%dl /* null terminator??? */
jnz L1
xorl %eax,%eax
L2:
ret

3
libc/arch-x86/string/strchr.S
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@ -1,3 +0,0 @@
/* $OpenBSD: strchr.S,v 1.3 2005/08/07 11:30:38 espie Exp $ */
#define STRCHR
#include "index.S"

64
libc/arch-x86/string/strcpy.S
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@ -1,64 +0,0 @@
/* $OpenBSD: strcpy.S,v 1.8 2005/08/07 11:30:38 espie Exp $ */
/*
* Written by J.T. Conklin <jtc@netbsd.org>.
* Public domain.
*/
#include <machine/asm.h>
#if defined(APIWARN)
#APP
.section .gnu.warning.strcpy
.ascii "warning: strcpy() is almost always misused, please use strlcpy()"
#NO_APP
#endif
/*
* NOTE: I've unrolled the loop eight times: large enough to make a
* significant difference, and small enough not to totally trash the
* cache.
*/
ENTRY(strcpy)
movl 4(%esp),%ecx /* dst address */
movl 8(%esp),%edx /* src address */
pushl %ecx /* push dst address */
.align 2,0x90
L1: movb (%edx),%al /* unroll loop, but not too much */
movb %al,(%ecx)
testb %al,%al
jz L2
movb 1(%edx),%al
movb %al,1(%ecx)
testb %al,%al
jz L2
movb 2(%edx),%al
movb %al,2(%ecx)
testb %al,%al
jz L2
movb 3(%edx),%al
movb %al,3(%ecx)
testb %al,%al
jz L2
movb 4(%edx),%al
movb %al,4(%ecx)
testb %al,%al
jz L2
movb 5(%edx),%al
movb %al,5(%ecx)
testb %al,%al
jz L2
movb 6(%edx),%al
movb %al,6(%ecx)
testb %al,%al
jz L2
movb 7(%edx),%al
movb %al,7(%ecx)
addl $8,%edx
addl $8,%ecx
testb %al,%al
jnz L1
L2: popl %eax /* pop dst address */
ret
END(strcpy)