projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 02cea471 | 1 | /* Multiple versions of strspn |
| bdaa77bc | 2 | Copyright (C) 2009,2010 Free Software Foundation, Inc. |
| 02cea471 L |
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 <config.h> | |
| 22 | ||
| 23 | #ifdef HAVE_SSE4_SUPPORT | |
| 24 | ||
| 25 | #include <sysdep.h> | |
| 2510d01d | 26 | #include <init-arch.h> |
| 02cea471 L |
27 | |
| 28 | /* Define multiple versions only for the definition in libc. */ | |
| 29 | #ifndef NOT_IN_libc | |
| fc1870e6 | 30 | # ifdef SHARED |
| 02cea471 L |
31 | .section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits |
| 32 | .globl __i686.get_pc_thunk.bx | |
| 33 | .hidden __i686.get_pc_thunk.bx | |
| 34 | .p2align 4 | |
| 35 | .type __i686.get_pc_thunk.bx,@function | |
| 36 | __i686.get_pc_thunk.bx: | |
| 37 | movl (%esp), %ebx | |
| 38 | ret | |
| 39 | ||
| 40 | .text | |
| 41 | ENTRY(strspn) | |
| 42 | .type strspn, @gnu_indirect_function | |
| 43 | pushl %ebx | |
| 44 | cfi_adjust_cfa_offset (4) | |
| 45 | cfi_rel_offset (ebx, 0) | |
| 46 | call __i686.get_pc_thunk.bx | |
| 47 | addl $_GLOBAL_OFFSET_TABLE_, %ebx | |
| 48 | cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx) | |
| 49 | jne 1f | |
| 50 | call __init_cpu_features | |
| 51 | 1: leal __strspn_ia32@GOTOFF(%ebx), %eax | |
| 2510d01d | 52 | testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features@GOTOFF(%ebx) |
| 02cea471 L |
53 | jz 2f |
| 54 | leal __strspn_sse42@GOTOFF(%ebx), %eax | |
| 55 | 2: popl %ebx | |
| 56 | cfi_adjust_cfa_offset (-4); | |
| 57 | cfi_restore (ebx) | |
| 58 | ret | |
| 59 | END(strspn) | |
| fc1870e6 L |
60 | # else |
| 61 | .text | |
| 62 | ENTRY(strspn) | |
| 63 | .type strspn, @gnu_indirect_function | |
| 64 | cmpl $0, KIND_OFFSET+__cpu_features | |
| 65 | jne 1f | |
| 66 | call __init_cpu_features | |
| 67 | 1: leal __strspn_ia32, %eax | |
| bdaa77bc | 68 | testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features |
| fc1870e6 L |
69 | jz 2f |
| 70 | leal __strspn_sse42, %eax | |
| 71 | 2: ret | |
| 72 | END(strspn) | |
| 73 | # endif | |
| 02cea471 L |
74 | |
| 75 | # undef ENTRY | |
| 76 | # define ENTRY(name) \ | |
| 77 | .type __strspn_ia32, @function; \ | |
| 78 | .globl __strspn_ia32; \ | |
| 2cae4995 AS |
79 | .p2align 4; \ |
| 80 | __strspn_ia32: cfi_startproc; \ | |
| 02cea471 L |
81 | CALL_MCOUNT |
| 82 | # undef END | |
| 83 | # define END(name) \ | |
| 84 | cfi_endproc; .size __strspn_ia32, .-__strspn_ia32 | |
| 85 | # undef libc_hidden_builtin_def | |
| 2c709c6f UD |
86 | /* IFUNC doesn't work with the hidden functions in shared library since |
| 87 | they will be called without setting up EBX needed for PLT which is | |
| 88 | used by IFUNC. */ | |
| 02cea471 L |
89 | # define libc_hidden_builtin_def(name) \ |
| 90 | .globl __GI_strspn; __GI_strspn = __strspn_ia32 | |
| 91 | #endif | |
| 92 | ||
| 93 | #endif /* HAVE_SSE4_SUPPORT */ | |
| 94 | ||
| 95 | #include "../../strspn.S" |