diff options
| author | Denis Vlasenko <vda.linux@googlemail.com> | 2008-12-20 14:34:19 +0000 |
|---|---|---|
| committer | Denis Vlasenko <vda.linux@googlemail.com> | 2008-12-20 14:34:19 +0000 |
| commit | 7dd438230613f3a29babf22543ee9ed89b8828d1 (patch) | |
| tree | 212ad123e170bf3ee27b277aae54a67f9f17a0e0 /libc/string/i386/strlen.c | |
| parent | 1d5c6ff2a4e8624a24165a9f3469b43113447b9d (diff) | |
libc/string/i386/rawmemchr.c: i386 version, adapted from strlen()
libc/string/i386/strlen.c: small optimization, same code size)
text data bss dec hex filename
- 240449 1759 11960 254168 3e0d8 lib/libuClibc-0.9.30-svn.so
+ 240339 1759 11960 254058 3e06a lib/libuClibc-0.9.30-svn.so
Diffstat (limited to 'libc/string/i386/strlen.c')
| -rw-r--r-- | libc/string/i386/strlen.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/libc/string/i386/strlen.c b/libc/string/i386/strlen.c index 761d27aae..ff2baeb38 100644 --- a/libc/string/i386/strlen.c +++ b/libc/string/i386/strlen.c @@ -35,14 +35,14 @@ #undef strlen size_t strlen(const char *s) { - int d0; - register int __res; - __asm__ __volatile__( - "repne\n\t" - "scasb\n\t" - "notl %0\n\t" - "decl %0" - :"=c" (__res), "=&D" (d0) :"1" (s),"a" (0), "0" (0xffffffff)); - return __res; + int eax, ecx, edi; + __asm__ __volatile__( + " repne; scasb\n" + " notl %%ecx\n" + " leal -1(%%ecx), %%eax\n" + : "=&c" (ecx), "=&D" (edi), "=&a" (eax) + : "0" (0xffffffff), "1" (s), "2" (0) + ); + return eax; } libc_hidden_def(strlen) |