1 /* Multiple versions of rawmemchr
2 Copyright (C) 2011 Free Software Foundation, Inc.
3 Contributed by Intel Corporation.
4 This file is part of the GNU C Library.
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.
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.
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
22 #include <init-arch.h>
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
29 .type __i686.get_pc_thunk.bx,@function
30 __i686.get_pc_thunk.bx:
34 # define CFI_POP(REG) \
35 cfi_adjust_cfa_offset (-4); \
38 # define CFI_PUSH(REG) \
39 cfi_adjust_cfa_offset (4); \
40 cfi_rel_offset (REG, 0)
44 .type __rawmemchr, @gnu_indirect_function
47 call __i686.get_pc_thunk.bx
48 addl $_GLOBAL_OFFSET_TABLE_, %ebx
49 cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
51 call __init_cpu_features
53 1: testl $bit_SSE2, CPUID_OFFSET+index_SSE2+__cpu_features@GOTOFF(%ebx)
55 testl $bit_Slow_BSF, FEATURE_OFFSET+index_Slow_BSF+__cpu_features@GOTOFF(%ebx)
58 leal __rawmemchr_sse2@GOTOFF(%ebx), %eax
65 2: leal __rawmemchr_ia32@GOTOFF(%ebx), %eax
72 3: leal __rawmemchr_sse2_bsf@GOTOFF(%ebx), %eax
78 weak_alias(__rawmemchr, rawmemchr)
81 # define ENTRY(name) \
82 .type __rawmemchr_ia32, @function; \
83 .globl __rawmemchr_ia32; \
85 __rawmemchr_ia32: cfi_startproc; \
89 cfi_endproc; .size __rawmemchr_ia32, .-__rawmemchr_ia32
91 # undef libc_hidden_def
92 /* IFUNC doesn't work with the hidden functions in shared library since
93 they will be called without setting up EBX needed for PLT which is
95 # define libc_hidden_def(name) \
96 .globl __GI___rawmemchr; __GI___rawmemchr = __rawmemchr_ia32
99 #include "../../rawmemchr.S"