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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2021 Free Software Foundation, Inc.
*
* GRUB 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 of the License, or
* (at your option) any later version.
*
* GRUB 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.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GRUB_STACK_PROTECTOR_H
#define GRUB_STACK_PROTECTOR_H 1
#include <grub/symbol.h>
#include <grub/types.h>
#ifdef GRUB_STACK_PROTECTOR
extern grub_addr_t EXPORT_VAR (__stack_chk_guard);
extern void __attribute__ ((noreturn)) EXPORT_FUNC (__stack_chk_fail) (void);
#if defined(_WIN64) && !defined(__CYGWIN__) /* MinGW, Windows 64-bit target. */
static grub_addr_t __attribute__ ((weakref("__stack_chk_guard"))) EXPORT_VAR (_stack_chk_guard);
static void __attribute__ ((noreturn, weakref("__stack_chk_fail"))) EXPORT_FUNC (_stack_chk_fail) (void);
#endif
extern grub_addr_t grub_stack_protector_init (void);
static inline __attribute__((__always_inline__))
void grub_update_stack_guard (void)
{
grub_addr_t guard;
guard = grub_stack_protector_init ();
if (guard)
__stack_chk_guard = guard;
}
#endif
#endif /* GRUB_STACK_PROTECTOR_H */
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