projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| fc2ee42a LD |
1 | /* Multiple versions of strnlen |
| 2 | Copyright (C) 2011 Free Software Foundation, Inc. | |
| 3 | Contributed by Intel Corporation. | |
| 4 | This file is part of the GNU C Library. | |
| 5 | ||
| 6 | The GNU C Library is free software; you can redistribute it and/or | |
| 7 | modify it under the terms of the GNU Lesser General Public | |
| 8 | License as published by the Free Software Foundation; either | |
| 9 | version 2.1 of the License, or (at your option) any later version. | |
| 10 | ||
| 11 | The GNU C Library is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | Lesser General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU Lesser General Public | |
| 17 | License along with the GNU C Library; if not, write to the Free | |
| 18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
| 19 | 02111-1307 USA. */ | |
| 20 | ||
| 21 | #include <sysdep.h> | |
| 22 | #include <init-arch.h> | |
| 23 | ||
| 24 | #ifndef NOT_IN_libc | |
| 25 | .section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits | |
| 26 | .globl __i686.get_pc_thunk.bx | |
| 27 | .hidden __i686.get_pc_thunk.bx | |
| 28 | .p2align 4 | |
| 29 | .type __i686.get_pc_thunk.bx,@function | |
| 30 | __i686.get_pc_thunk.bx: | |
| 31 | movl (%esp), %ebx | |
| 32 | ret | |
| 33 | ||
| 34 | .text | |
| 35 | ENTRY(__strnlen) | |
| 36 | .type __strnlen, @gnu_indirect_function | |
| 37 | pushl %ebx | |
| 38 | cfi_adjust_cfa_offset (4) | |
| 39 | cfi_rel_offset (ebx, 0) | |
| 40 | call __i686.get_pc_thunk.bx | |
| 41 | addl $_GLOBAL_OFFSET_TABLE_, %ebx | |
| 42 | cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx) | |
| 43 | jne 1f | |
| 44 | call __init_cpu_features | |
| 45 | 1: leal __strnlen_ia32@GOTOFF(%ebx), %eax | |
| 46 | testl $bit_SSE2, CPUID_OFFSET+index_SSE2+__cpu_features@GOTOFF(%ebx) | |
| 47 | jz 2f | |
| 48 | leal __strnlen_sse2@GOTOFF(%ebx), %eax | |
| 49 | 2: popl %ebx | |
| 50 | cfi_adjust_cfa_offset (-4); | |
| 51 | cfi_restore (ebx) | |
| 52 | ret | |
| 53 | END(__strnlen) | |
| 54 | ||
| 55 | weak_alias(__strnlen, strnlen) | |
| 56 | #endif |