]>
Commit | Line | Data |
---|---|---|
693fb948 | 1 | /* Multiple versions of strrchr |
b090e8ea | 2 | All versions must be listed in ifunc-impl-list.c. |
b168057a | 3 | Copyright (C) 2011-2015 Free Software Foundation, Inc. |
693fb948 LD |
4 | Contributed by Intel Corporation. |
5 | This file is part of the GNU C Library. | |
6 | ||
7 | The GNU C Library is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU Lesser General Public | |
9 | License as published by the Free Software Foundation; either | |
10 | version 2.1 of the License, or (at your option) any later version. | |
11 | ||
12 | The GNU C Library is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
18 | License along with the GNU C Library; if not, see |
19 | <http://www.gnu.org/licenses/>. */ | |
693fb948 LD |
20 | |
21 | #include <sysdep.h> | |
22 | #include <init-arch.h> | |
23 | ||
4f41c682 | 24 | #if IS_IN (libc) |
693fb948 LD |
25 | .text |
26 | ENTRY(strrchr) | |
27 | .type strrchr, @gnu_indirect_function | |
28 | pushl %ebx | |
29 | cfi_adjust_cfa_offset (4) | |
30 | cfi_rel_offset (ebx, 0) | |
9a1d9254 | 31 | LOAD_PIC_REG(bx) |
693fb948 LD |
32 | cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx) |
33 | jne 1f | |
34 | call __init_cpu_features | |
35 | 1: leal __strrchr_ia32@GOTOFF(%ebx), %eax | |
36 | testl $bit_SSE2, CPUID_OFFSET+index_SSE2+__cpu_features@GOTOFF(%ebx) | |
37 | jz 2f | |
38 | leal __strrchr_sse2_bsf@GOTOFF(%ebx), %eax | |
39 | testl $bit_Slow_BSF, FEATURE_OFFSET+index_Slow_BSF+__cpu_features@GOTOFF(%ebx) | |
40 | jz 2f | |
41 | leal __strrchr_sse2@GOTOFF(%ebx), %eax | |
42 | 2: popl %ebx | |
43 | cfi_adjust_cfa_offset (-4); | |
44 | cfi_restore (ebx) | |
45 | ret | |
46 | END(strrchr) | |
47 | ||
48 | # undef ENTRY | |
49 | # define ENTRY(name) \ | |
50 | .type __strrchr_ia32, @function; \ | |
51 | .globl __strrchr_ia32; \ | |
52 | .p2align 4; \ | |
53 | __strrchr_ia32: cfi_startproc; \ | |
54 | CALL_MCOUNT | |
55 | # undef END | |
56 | # define END(name) \ | |
57 | cfi_endproc; .size __strrchr_ia32, .-__strrchr_ia32 | |
58 | # undef libc_hidden_builtin_def | |
59 | /* IFUNC doesn't work with the hidden functions in shared library since | |
60 | they will be called without setting up EBX needed for PLT which is | |
61 | used by IFUNC. */ | |
62 | # define libc_hidden_builtin_def(name) \ | |
63 | .globl __GI_strrchr; __GI_strrchr = __strrchr_ia32 | |
64 | #endif | |
65 | ||
66 | #include "../../strrchr.S" |