diff options
Diffstat (limited to 'lib/libc/arch/i386/string/strchr.S')
| -rw-r--r-- | lib/libc/arch/i386/string/strchr.S | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/lib/libc/arch/i386/string/strchr.S b/lib/libc/arch/i386/string/strchr.S index f76e593fcd0..453cdd6c281 100644 --- a/lib/libc/arch/i386/string/strchr.S +++ b/lib/libc/arch/i386/string/strchr.S @@ -1,3 +1,23 @@ -/* $OpenBSD: strchr.S,v 1.3 2005/08/07 11:30:38 espie Exp $ */ -#define STRCHR -#include "index.S" +/* $OpenBSD: strchr.S,v 1.4 2014/11/30 19:43:56 deraadt Exp $ */ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +ALTENTRY(index) +ENTRY(strchr) + 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 |