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Commit d89ebca2 authored by Kumar Gala's avatar Kumar Gala Committed by Benjamin Herrenschmidt
Browse files

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: default avatarKumar Gala <galak@kernel.crashing.org>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 8e27f4da

arch/powerpc/include/asm/elf.h

+2 −2
Original line number Diff line number Diff line
@@ -256,11 +256,11 @@ do { \ 
 * 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;