[PATCH] powerpc: ppc32 needs elf_read_implies_exec()

[Kumar Gala]

On ppc64 we implemented elf_read_implies_exec() for 32-bit binaries
because old toolchains had bugs with regards to marking PHDRs as
executable that needed to be.  For some reason we didn't do this on
ppc32 builds.  This hadn't been an issue until recent changes to I$/D$
handling that impacted the per-page exec handling on embedded PPC.

Signed-off-by: Kumar Gala <galak at kernel.crashing.org>
---
 arch/powerpc/include/asm/elf.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index 1a856b1..b6ada56 100644
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -259,6 +259,7 @@ do {								\
 		(exec_stk != EXSTACK_DISABLE_X) : 0)
 #else 
 # define SET_PERSONALITY(ex) set_personality(PER_LINUX)
+# define elf_read_implies_exec(ex, exec_stk) (exec_stk != EXSTACK_DISABLE_X)
 #endif /* __powerpc64__ */
 
 extern int dcache_bsize;
-- 
1.6.0.6