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| author |   Frederic Weisbecker <fweisbec@gmail.com> | 2010-04-22 05:05:45 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2010-05-01 04:32:07 +0200 |
| commit | 73266fc1df2f94cf72b3beba3eee3b88ed0b0664 (patch) | |
| tree | 876f6ab9c85715665e5c5562d70d9ea2c10facea /include/linux/hw_breakpoint.h | |
| parent | perf: Fix warning while reading ring buffer headers (diff) | |
| download | linux-dev-73266fc1df2f94cf72b3beba3eee3b88ed0b0664.tar.xz linux-dev-73266fc1df2f94cf72b3beba3eee3b88ed0b0664.zip | |
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 <fweisbec@gmail.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Cc: K. Prasad <prasad@linux.vnet.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/hw_breakpoint.h')
| -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; |