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/* Multiple versions of strcspn
All versions must be listed in ifunc-impl-list.c.
Copyright (C) 2009-2014 Free Software Foundation, Inc.
Contributed by Intel Corporation.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <config.h>
#ifdef HAVE_SSE4_SUPPORT
#include <sysdep.h>
#include <init-arch.h>
#ifdef USE_AS_STRPBRK
#define STRCSPN_SSE42 __strpbrk_sse42
#define STRCSPN_IA32 __strpbrk_ia32
#define __GI_STRCSPN __GI_strpbrk
#else
#ifndef STRCSPN
#define STRCSPN strcspn
#define STRCSPN_SSE42 __strcspn_sse42
#define STRCSPN_IA32 __strcspn_ia32
#define __GI_STRCSPN __GI_strcspn
#endif
#endif
/* Define multiple versions only for the definition in libc. Don't
define multiple versions for strpbrk in static library since we
need strpbrk before the initialization happened. */
#if (defined SHARED || !defined USE_AS_STRPBRK) && !defined NOT_IN_libc
# ifdef SHARED
.text
ENTRY(STRCSPN)
.type STRCSPN, @gnu_indirect_function
pushl %ebx
cfi_adjust_cfa_offset (4)
cfi_rel_offset (ebx, 0)
LOAD_PIC_REG(bx)
cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
jne 1f
call __init_cpu_features
1: leal STRCSPN_IA32@GOTOFF(%ebx), %eax
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features@GOTOFF(%ebx)
jz 2f
leal STRCSPN_SSE42@GOTOFF(%ebx), %eax
2: popl %ebx
cfi_adjust_cfa_offset (-4);
cfi_restore (ebx)
ret
END(STRCSPN)
# else
.text
ENTRY(STRCSPN)
.type STRCSPN, @gnu_indirect_function
cmpl $0, KIND_OFFSET+__cpu_features
jne 1f
call __init_cpu_features
1: leal STRCSPN_IA32, %eax
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features
jz 2f
leal STRCSPN_SSE42, %eax
2: ret
END(STRCSPN)
# endif
# undef ENTRY
# define ENTRY(name) \
.type STRCSPN_IA32, @function; \
.globl STRCSPN_IA32; \
.p2align 4; \
STRCSPN_IA32: cfi_startproc; \
CALL_MCOUNT
# undef END
# define END(name) \
cfi_endproc; .size STRCSPN_IA32, .-STRCSPN_IA32
# undef libc_hidden_builtin_def
/* IFUNC doesn't work with the hidden functions in shared library since
they will be called without setting up EBX needed for PLT which is
used by IFUNC. */
# define libc_hidden_builtin_def(name) \
.globl __GI_STRCSPN; __GI_STRCSPN = STRCSPN_IA32
#endif
#endif /* HAVE_SSE4_SUPPORT */
#ifdef USE_AS_STRPBRK
#include "../../strpbrk.S"
#else
#include "../../strcspn.S"
#endif
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