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| author | Ryan S. Arnold <rsa@us.ibm.com> | 2010-12-19 22:49:01 -0500 |
|---|---|---|
| committer | Ulrich Drepper <drepper@gmail.com> | 2010-12-19 22:49:01 -0500 |
| commit | 30950a5fd2346c43ba4fc59c16f122cfb59f9629 (patch) | |
| tree | 400aceac60bdb17ec66caf2850d173ad8554e135 /sysdeps/powerpc/stackinfo.h | |
| parent | db753e2cfb2051ebf20dc089f87c5b1297cc2cff (diff) | |
| download | glibc-30950a5fd2346c43ba4fc59c16f122cfb59f9629.tar.gz glibc-30950a5fd2346c43ba4fc59c16f122cfb59f9629.tar.xz glibc-30950a5fd2346c43ba4fc59c16f122cfb59f9629.zip | |
Make PowerPC64 default to nonexecutable stack
Diffstat (limited to 'sysdeps/powerpc/stackinfo.h')
| -rw-r--r-- | sysdeps/powerpc/stackinfo.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/sysdeps/powerpc/stackinfo.h b/sysdeps/powerpc/stackinfo.h index 839758a4e3..aac86a48a2 100644 --- a/sysdeps/powerpc/stackinfo.h +++ b/sysdeps/powerpc/stackinfo.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1999 Free Software Foundation, Inc. +/* Copyright (C) 1999, 2010 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 @@ -22,7 +22,18 @@ #ifndef _STACKINFO_H #define _STACKINFO_H 1 +#include <elf.h> + /* 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 */ |