diff options
Diffstat (limited to 'sysdeps/i386/i586/strlen.S')
| -rw-r--r-- | sysdeps/i386/i586/strlen.S | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/sysdeps/i386/i586/strlen.S b/sysdeps/i386/i586/strlen.S index 29d81d6b8d..a1fa464957 100644 --- a/sysdeps/i386/i586/strlen.S +++ b/sysdeps/i386/i586/strlen.S @@ -1,6 +1,6 @@ /* strlen -- Compute length of NUL terminated string. Highly optimized version for ix86, x>=5. - Copyright (C) 1995,1996,1997,2000,2002,2003 Free Software Foundation, Inc. + Copyright (C) 1995-2014 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>. @@ -20,8 +20,6 @@ #include <sysdep.h> #include "asm-syntax.h" -#include "bp-sym.h" -#include "bp-asm.h" /* This version is especially optimized for the i586 (and following?) processors. This is mainly done by using the two pipelines. The @@ -36,15 +34,13 @@ /* The magic value which is used throughout in the whole code. */ #define magic 0xfefefeff -#define PARMS LINKAGE /* no space for saved regs */ +#define PARMS 4 /* no space for saved regs */ #define STR PARMS .text -ENTRY (BP_SYM (strlen)) - ENTER +ENTRY (strlen) movl STR(%esp), %eax - CHECK_BOUNDS_LOW (%eax, STR(%esp)) movl $3, %edx /* load mask (= 3) */ andl %eax, %edx /* separate last two bits of address */ @@ -178,11 +174,9 @@ L(3): subl $4, %eax /* correct too early pointer increment */ incl %eax /* increment pointer */ -L(2): CHECK_BOUNDS_HIGH (%eax, STR(%esp), jb) - subl STR(%esp), %eax /* now compute the length as difference +L(2): subl STR(%esp), %eax /* now compute the length as difference between start and terminating NUL character */ - LEAVE ret -END (BP_SYM (strlen)) +END (strlen) libc_hidden_builtin_def (strlen) |