powerpc: Fix up elf_read_implies_exec() usage
We believe if a toolchain supports PT_GNU_STACK that it sets the proper
PHDR permissions. Therefor elf_read_implies_exec() should only be true
if we don't see PT_GNU_STACK set.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index d6b4a12..014a624 100644
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -256,11 +256,11 @@
* even if we have an executable stack.
*/
# define elf_read_implies_exec(ex, exec_stk) (test_thread_flag(TIF_32BIT) ? \
- (exec_stk != EXSTACK_DISABLE_X) : 0)
+ (exec_stk == EXSTACK_DEFAULT) : 0)
#else
# define SET_PERSONALITY(ex) \
set_personality(PER_LINUX | (current->personality & (~PER_MASK)))
-# define elf_read_implies_exec(ex, exec_stk) (exec_stk != EXSTACK_DISABLE_X)
+# define elf_read_implies_exec(ex, exec_stk) (exec_stk == EXSTACK_DEFAULT)
#endif /* __powerpc64__ */
extern int dcache_bsize;