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| author | Will Deacon <will.deacon@arm.com> | 2010-09-03 09:42:55 (GMT) |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-09-08 09:05:00 (GMT) |
| commit | 864232fa1a2f8dfe003438ef0851a56722740f3e (patch) | |
| tree | 0f85f2b1b2f030e7c51f0c69b112dea746b3a861 /arch/arm/include/asm/processor.h | |
| parent | f81ef4a920c8e1af75adf9f15042c2daa49d3cb3 (diff) | |
| download | linux-fsl-qoriq-864232fa1a2f8dfe003438ef0851a56722740f3e.tar.xz | |
ARM: 6357/1: hw-breakpoint: add new ptrace requests for hw-breakpoint interaction
For debuggers to take advantage of the hw-breakpoint framework in the kernel,
it is necessary to expose the API calls via a ptrace interface.
This patch exposes the hardware breakpoints framework as a collection of
virtual registers, accesible using PTRACE_SETHBPREGS and PTRACE_GETHBPREGS
requests. The breakpoints are stored in the debug_info struct of the running
thread.
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: S. Karthikeyan <informkarthik@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include/asm/processor.h')
| -rw-r--r-- | arch/arm/include/asm/processor.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h index 7bed3da..67357ba 100644 --- a/arch/arm/include/asm/processor.h +++ b/arch/arm/include/asm/processor.h @@ -19,6 +19,7 @@ #ifdef __KERNEL__ +#include <asm/hw_breakpoint.h> #include <asm/ptrace.h> #include <asm/types.h> @@ -41,6 +42,9 @@ struct debug_entry { struct debug_info { int nsaved; struct debug_entry bp[2]; +#ifdef CONFIG_HAVE_HW_BREAKPOINT + struct perf_event *hbp[ARM_MAX_HBP_SLOTS]; +#endif }; struct thread_struct { |