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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-03-25 14:51:51 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-03-26 11:33:57 +0100 |
| commit | ea8e61b7bbc4a2faef77db34eb2db2a2c2372ff6 (patch) | |
| tree | df2998225dc10245ce3d392576a724ab788e456c /arch/x86/include/asm/processor.h | |
| parent | faa4602e47690fb11221e00f9b9697c8dc0d4b19 (diff) | |
| download | lwn-ea8e61b7bbc4a2faef77db34eb2db2a2c2372ff6.tar.gz lwn-ea8e61b7bbc4a2faef77db34eb2db2a2c2372ff6.zip | |
x86, ptrace: Fix block-step
Implement ptrace-block-step using TIF_BLOCKSTEP which will set
DEBUGCTLMSR_BTF when set for a task while preserving any other
DEBUGCTLMSR bits.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20100325135414.017536066@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/processor.h')
| -rw-r--r-- | arch/x86/include/asm/processor.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 5bec21a66dc5..32428b410b55 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -799,7 +799,7 @@ extern void cpu_init(void); static inline unsigned long get_debugctlmsr(void) { - unsigned long debugctlmsr = 0; + unsigned long debugctlmsr = 0; #ifndef CONFIG_X86_DEBUGCTLMSR if (boot_cpu_data.x86 < 6) @@ -807,7 +807,7 @@ static inline unsigned long get_debugctlmsr(void) #endif rdmsrl(MSR_IA32_DEBUGCTLMSR, debugctlmsr); - return debugctlmsr; + return debugctlmsr; } static inline void update_debugctlmsr(unsigned long debugctlmsr) |