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| author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:28:35 -0800 |
|---|---|---|
| committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:28:35 -0800 |
| commit | 1dc9e472e19acfe6dc7f41e429236e7eef7ceda1 (patch) | |
| tree | 3be0c520fae17689bbf5584e1136fb820caef26f /libc/arch-x86/string/index.S | |
| parent | 1767f908af327fa388b1c66883760ad851267013 (diff) | |
| download | bionic-1dc9e472e19acfe6dc7f41e429236e7eef7ceda1.zip bionic-1dc9e472e19acfe6dc7f41e429236e7eef7ceda1.tar.gz bionic-1dc9e472e19acfe6dc7f41e429236e7eef7ceda1.tar.bz2 | |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'libc/arch-x86/string/index.S')
| -rw-r--r-- | libc/arch-x86/string/index.S | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/libc/arch-x86/string/index.S b/libc/arch-x86/string/index.S new file mode 100644 index 0000000..7f83ef5 --- /dev/null +++ b/libc/arch-x86/string/index.S @@ -0,0 +1,26 @@ +/* $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 |