Process personality is stored together with other flags like UNAME26 in
an integer variable. Overwriting this value with PER_LINUX drops all
other existing flags and as such broke tools like the uname26 tool.
Actually this was only broken on 32bit kernels, since for 32bit-ELF
binaries on 64-bit kernels the SET_PERSONALITY macro from
arch/parisc/kernel/binfmt_elf32.c is used which does not modifies the
personality value at all (which is wrong as long as we don't run HPUX
binaries or similiar).
Signed-off-by: Helge Deller <deller@xxxxxx>
diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index 19f6cb1..ad2b503 100644
--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -247,7 +247,7 @@ typedef unsigned long elf_greg_t;
#define ELF_PLATFORM ("PARISC\0")
#define SET_PERSONALITY(ex) \
- current->personality = PER_LINUX; \
+ set_personality((current->personality & ~PER_MASK) | PER_LINUX); \
current->thread.map_base = DEFAULT_MAP_BASE; \
current->thread.task_size = DEFAULT_TASK_SIZE \
--
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