Retro68/gcc/libgcc/config/i386/enable-execute-stack-mingw32.c
2015-08-28 17:33:40 +02:00

39 lines
1.3 KiB
C

/* Implement __enable_execute_stack for Windows32.
Copyright (C) 2011-2015 Free Software Foundation, Inc.
This file is part of GCC.
GCC 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.
GCC 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
<http://www.gnu.org/licenses/>. */
#include <windows.h>
extern void __enable_execute_stack (void *);
void
__enable_execute_stack (void *addr)
{
MEMORY_BASIC_INFORMATION b;
if (!VirtualQuery (addr, &b, sizeof(b)))
abort ();
VirtualProtect (b.BaseAddress, b.RegionSize, PAGE_EXECUTE_READWRITE,
&b.Protect);
}