2015-05-24 15:28:17 +00:00
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/*-
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* Copyright (c) 2013 Dmitry Chagin
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* All rights reserved.
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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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* in this position and unchanged.
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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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _LINUX_VDSO_H_
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#define _LINUX_VDSO_H_
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#include <sys/types.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 **);
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void __elfN(linux_shared_page_fini)(vm_object_t);
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void __elfN(linux_vdso_fixup)(struct sysentvec *);
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2017-07-30 21:24:20 +00:00
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void __elfN(linux_vdso_reloc)(struct sysentvec *);
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2015-05-24 15:28:17 +00:00
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void __elfN(linux_vdso_sym_init)(struct linux_vdso_sym *);
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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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