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110be11ac9
Due to sys/param.h includes sys/types.h and the fact that the sys/param.h is included everywhere where linux_vdso.h is needed.
65 lines
2.4 KiB
C
65 lines
2.4 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2013-2021 Dmitry Chagin <dchagin@FreeBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _LINUX_VDSO_H_
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#define _LINUX_VDSO_H_
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struct linux_vdso_sym {
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SLIST_ENTRY(linux_vdso_sym) sym;
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uint32_t size;
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uintptr_t * ptr;
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char symname[];
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};
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vm_object_t __elfN(linux_shared_page_init)(char **, vm_size_t);
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void __elfN(linux_shared_page_fini)(vm_object_t, void *, vm_size_t);
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void __elfN(linux_vdso_fixup)(char *, vm_offset_t);
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void __elfN(linux_vdso_sym_init)(struct linux_vdso_sym *);
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int linux_map_vdso(struct proc *, vm_object_t, vm_offset_t,
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vm_offset_t, struct image_params *);
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#define LINUX_VDSO_SYM_INTPTR(name) \
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uintptr_t name; \
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LINUX_VDSO_SYM_DEFINE(name)
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#define LINUX_VDSO_SYM_CHAR(name) \
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const char * name; \
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LINUX_VDSO_SYM_DEFINE(name)
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#define LINUX_VDSO_SYM_DEFINE(name) \
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static struct linux_vdso_sym name ## sym = { \
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.symname = #name, \
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.size = sizeof(#name), \
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.ptr = (uintptr_t *)&name \
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}; \
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SYSINIT(__elfN(name ## _sym_init), SI_SUB_EXEC, \
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SI_ORDER_FIRST, __elfN(linux_vdso_sym_init), &name ## sym); \
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struct __hack
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#endif /* _LINUX_VDSO_H_ */
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