diff options
| author | Frederic Weisbecker <[email protected]> | 2010-04-22 05:05:45 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <[email protected]> | 2010-05-01 04:32:07 +0200 |
| commit | 73266fc1df2f94cf72b3beba3eee3b88ed0b0664 (patch) | |
| tree | 876f6ab9c85715665e5c5562d70d9ea2c10facea /include/linux | |
| parent | d00a47cce569a3e660a8c9de5d57af28d6a9f0f7 (diff) | |
hw-breakpoints: Tag ptrace breakpoint as exclude_kernel
Tag ptrace breakpoints with the exclude_kernel attribute set. This
will make it easier to set generic policies on breakpoints, when it
comes to ensure nobody unpriviliged try to breakpoint on the kernel.
Signed-off-by: Frederic Weisbecker <[email protected]>
Acked-by: Paul Mundt <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Mahesh Salgaonkar <[email protected]>
Cc: K. Prasad <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Ingo Molnar <[email protected]>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/hw_breakpoint.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/hw_breakpoint.h b/include/linux/hw_breakpoint.h index c70d27af03f9..a0aa5a9cfb0e 100644 --- a/include/linux/hw_breakpoint.h +++ b/include/linux/hw_breakpoint.h @@ -34,6 +34,12 @@ static inline void hw_breakpoint_init(struct perf_event_attr *attr) attr->sample_period = 1; } +static inline void ptrace_breakpoint_init(struct perf_event_attr *attr) +{ + hw_breakpoint_init(attr); + attr->exclude_kernel = 1; +} + static inline unsigned long hw_breakpoint_addr(struct perf_event *bp) { return bp->attr.bp_addr; |