/* Copyright (C) 1999-2016 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ /* This file contains a bit of information about the stack allocation of the processor. */ #ifndef _STACKINFO_H #define _STACKINFO_H 1 #include /* On PPC the stack grows down. */ #define _STACK_GROWS_DOWN 1 #if __WORDSIZE == 64 /* PPC64 doesn't need an executable stack and doesn't need PT_GNU_STACK * to make the stack nonexecutable. */ # define DEFAULT_STACK_PERMS (PF_R|PF_W) #else /* PF_X can be overridden if PT_GNU_STACK is present but is presumed absent. */ # define DEFAULT_STACK_PERMS (PF_R|PF_W|PF_X) #endif #endif /* stackinfo.h */