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| author | H. Peter Anvin <hpa@zytor.com> | 2012-02-14 22:56:49 +0100 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2012-02-20 21:48:49 +0100 |
| commit | bb2127240c5595ae4ef7115494f51e973692f64e (patch) | |
| tree | 5e1318eba21d79facf436673ae682f85f0b4d978 /arch/x86/kernel/process_64.c | |
| parent | x86-64: Add prototype for old_rsp to a header file (diff) | |
| download | linux-bb2127240c5595ae4ef7115494f51e973692f64e.tar.xz linux-bb2127240c5595ae4ef7115494f51e973692f64e.zip | |
x32: Add a thread flag for x32 processes
An x32 process is *almost* the same thing as a 64-bit process with a
32-bit address limit, but there are a few minor differences -- in
particular core dumps are 32 bits and signal handling is different.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/kernel/process_64.c')
| -rw-r--r-- | arch/x86/kernel/process_64.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 0e900d09e232..5fe2fbaa56ba 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -509,6 +509,7 @@ void set_personality_64bit(void) /* Make sure to be in 64bit mode */ clear_thread_flag(TIF_IA32); clear_thread_flag(TIF_ADDR32); + clear_thread_flag(TIF_X32); /* Ensure the corresponding mm is not marked. */ if (current->mm) @@ -528,6 +529,7 @@ void set_personality_ia32(void) /* Make sure to be in 32bit mode */ set_thread_flag(TIF_IA32); set_thread_flag(TIF_ADDR32); + clear_thread_flag(TIF_X32); current->personality |= force_personality32; /* Mark the associated mm as containing 32-bit tasks. */ |