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i /* ELF program property for Intel CET.
Copyright (C) 2017-2021 Free Software Foundation, Inc.
This file is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3, or (at your option) any
later version.
This file 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
General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
.
*/
/* Add x86 feature with IBT and/or SHSTK bits to ELF program property
if they are enabled. Otherwise, contents in this header file are
unused. Define _CET_ENDBR for assembly codes. _CET_ENDBR should be
placed unconditionally at the entrance of a function whose address
may be taken. */
#ifndef _CET_H_INCLUDED
#define _CET_H_INCLUDED
#ifdef __ASSEMBLER__
# if defined __CET__ && (__CET__ & 1) != 0
# ifdef __x86_64__
# define _CET_ENDBR endbr64
# else
# define _CET_ENDBR endbr32
# endif
# else
# define _CET_ENDBR
# endif
# ifdef __ELF__
# ifdef __CET__
# if (__CET__ & 1) != 0
/* GNU_PROPERTY_X86_FEATURE_1_IBT. */
# define __PROPERTY_IBT 0x1
# else
# define __PROPERTY_IBT 0x0
# endif
# if (__CET__ & 2) != 0
/* GNU_PROPERTY_X86_FEATURE_1_SHSTK. */
# define __PROPERTY_SHSTK 0x2
# else
# define __PROPERTY_SHSTK 0x0
# endif
# define __PROPERTY_BITS (__PROPERTY_IBT | __PROPERTY_SHSTK)
# ifdef __LP64__
# define __PROPERTY_ALIGN 3
# else
# define __PROPERTY_ALIGN 2
# endif
.pushsection ".note.gnu.property", "a"
.p2align __PROPERTY_ALIGN
.long 1f - 0f /* name length. */
.long 4f - 1f /* data length. */
/* NT_GNU_PROPERTY_TYPE_0. */
.long 5 /* note type. */
0:
.asciz "GNU" /* vendor name. */
1:
.p2align __PROPERTY_ALIGN
/* GNU_PROPERTY_X86_FEATURE_1_AND. */
.long 0xc0000002 /* pr_type. */
.long 3f - 2f /* pr_datasz. */
2:
/* GNU_PROPERTY_X86_FEATURE_1_XXX. */
.long __PROPERTY_BITS
3:
.p2align __PROPERTY_ALIGN
4:
.popsection
# endif /* __CET__ */
# endif /* __ELF__ */
#endif /* __ASSEMBLER__ */
#endif /* _CET_H_INCLUDED */
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h 13:64
# l4(
( fB-
q; /* SPDX-License-Identifier: GPL-2.0 */
/*
* Statically sized hash table implementation
* (C) 2012 Sasha Levin
*/
#ifndef _LINUX_HASHTABLE_H
#define _LINUX_HASHTABLE_H
#include
#include
#include
#include
#include
#define DEFINE_HASHTABLE(name, bits) \
struct hlist_head name[1 << (bits)] = \
{ [0 ... ((1 << (bits)) - 1)] = HLIST_HEAD_INIT }
#define DEFINE_READ_MOSTLY_HASHTABLE(name, bits) \
struct hlist_head name[1 << (bits)] __read_mostly = \
{ [0 ... ((1 << (bits)) - 1)] = HLIST_HEAD_INIT }
#define DECLARE_HASHTABLE(name, bits) \
struct hlist_head name[1 << (bits)]
#define HASH_SIZE(name) (ARRAY_SIZE(name))
#define HASH_BITS(name) ilog2(HASH_SIZE(name))
/* Use hash_32 when possible to allow for fast 32bit hashing in 64bit kernels. */
#define hash_min(val, bits) \
(sizeof(val) <= 4 ? hash_32(val, bits) : hash_long(val, bits))
static inline void __hash_init(struct hlist_head *ht, unsigned int sz)
{
unsigned int i;
for (i = 0; i < sz; i++)
INIT_HLIST_HE