Now that ppc32 implements address randomization it also wants to inherit
personality flags like ADDR_NO_RANDOMIZE across exec, for things like
`setarch ppc -R' to work. But the ppc32 version of SET_PERSONALITY
forcefully sets PER_LINUX, clearing all personality flags. So be
careful about preserving the flags.
Signed-off-by: Andreas Schwab <sch...@linux-m68k.org>
---
arch/powerpc/include/asm/elf.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: linux-2.6.30-rc1/arch/powerpc/include/asm/elf.h
===================================================================
--- linux-2.6.30-rc1.orig/arch/powerpc/include/asm/elf.h 2009-04-08
12:45:56.000000000 +0200
+++ linux-2.6.30-rc1/arch/powerpc/include/asm/elf.h 2009-04-12
14:24:06.000000000 +0200
@@ -258,7 +258,8 @@ do {
\
# define elf_read_implies_exec(ex, exec_stk) (test_thread_flag(TIF_32BIT) ? \
(exec_stk != EXSTACK_DISABLE_X) : 0)
#else
-# define SET_PERSONALITY(ex) set_personality(PER_LINUX)
+# define SET_PERSONALITY(ex) \
+ set_personality(PER_LINUX | (current->personality & (~PER_MASK)))
#endif /* __powerpc64__ */
extern int dcache_bsize;
--
Andreas Schwab, sch...@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
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