[thirdparty/glibc.git] / sysdeps / i386 / i686 / multiarch / strcspn.S

/* Multiple versions of strcspn
   Copyright (C) 2009, 2012 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
Commit	Line	Data
02cea471	1	/* Multiple versions of strcspn
9a1d9254	2	Copyright (C) 2009, 2012 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
59ba27a6 PE	17	License along with the GNU C Library; if not, see
59ba27a6 PE	18	<http://www.gnu.org/licenses/>. */
02cea471 L	19
	20	#include <config.h>
	21
	22	#ifdef HAVE_SSE4_SUPPORT
	23
	24	#include <sysdep.h>
2510d01d	25	#include <init-arch.h>
02cea471 L	26
	27	#ifdef USE_AS_STRPBRK
	28	#define STRCSPN_SSE42 __strpbrk_sse42
	29	#define STRCSPN_IA32 __strpbrk_ia32
	30	#define __GI_STRCSPN __GI_strpbrk
	31	#else
	32	#ifndef STRCSPN
	33	#define STRCSPN strcspn
	34	#define STRCSPN_SSE42 __strcspn_sse42
	35	#define STRCSPN_IA32 __strcspn_ia32
	36	#define __GI_STRCSPN __GI_strcspn
	37	#endif
	38	#endif
	39
	40	/* Define multiple versions only for the definition in libc. Don't
	41	define multiple versions for strpbrk in static library since we
	42	need strpbrk before the initialization happened. */
	43	#if (defined SHARED \|\| !defined USE_AS_STRPBRK) && !defined NOT_IN_libc
fc1870e6	44	# ifdef SHARED
02cea471 L	45	.text
	46	ENTRY(STRCSPN)
	47	.type STRCSPN, @gnu_indirect_function
	48	pushl %ebx
	49	cfi_adjust_cfa_offset (4)
	50	cfi_rel_offset (ebx, 0)
9a1d9254	51	LOAD_PIC_REG(bx)
02cea471 L	52	cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
	53	jne 1f
	54	call __init_cpu_features
	55	1: leal STRCSPN_IA32@GOTOFF(%ebx), %eax
2510d01d	56	testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features@GOTOFF(%ebx)
02cea471 L	57	jz 2f
	58	leal STRCSPN_SSE42@GOTOFF(%ebx), %eax
	59	2: popl %ebx
	60	cfi_adjust_cfa_offset (-4);
	61	cfi_restore (ebx)
	62	ret
	63	END(STRCSPN)
fc1870e6 L	64	# else
	65	.text
	66	ENTRY(STRCSPN)
	67	.type STRCSPN, @gnu_indirect_function
	68	cmpl $0, KIND_OFFSET+__cpu_features
	69	jne 1f
	70	call __init_cpu_features
	71	1: leal STRCSPN_IA32, %eax
2510d01d	72	testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features
fc1870e6 L	73	jz 2f
	74	leal STRCSPN_SSE42, %eax
	75	2: ret
	76	END(STRCSPN)
	77	# endif
02cea471 L	78
	79	# undef ENTRY
	80	# define ENTRY(name) \
	81	.type STRCSPN_IA32, @function; \
	82	.globl STRCSPN_IA32; \
	83	.p2align 4; \
	84	STRCSPN_IA32: cfi_startproc; \
	85	CALL_MCOUNT
	86	# undef END
	87	# define END(name) \
	88	cfi_endproc; .size STRCSPN_IA32, .-STRCSPN_IA32
	89	# undef libc_hidden_builtin_def
2c709c6f UD	90	/* IFUNC doesn't work with the hidden functions in shared library since
	91	they will be called without setting up EBX needed for PLT which is
	92	used by IFUNC. */
02cea471 L	93	# define libc_hidden_builtin_def(name) \
	94	.globl __GI_STRCSPN; __GI_STRCSPN = STRCSPN_IA32
	95	#endif
	96
	97	#endif /* HAVE_SSE4_SUPPORT */
	98
	99	#ifdef USE_AS_STRPBRK
	100	#include "../../strpbrk.S"
	101	#else
	102	#include "../../strcspn.S"
	103	#endif