hw-breakpoints: ftrace plugin for kernel symbol tracing using HW Breakpoint interfaces
authorK.Prasad <prasad@linux.vnet.ibm.com>
Mon, 1 Jun 2009 18:16:40 +0000 (23:16 +0530)
committerFrederic Weisbecker <fweisbec@gmail.com>
Tue, 2 Jun 2009 20:47:00 +0000 (22:47 +0200)
commit0722db015c246204044299eae3b02d18d3ca4faf
treecc9a6b21961d62e1788ee2b9cbd0ae23b43f11a0
parent432039933a16b8227b7b267f46ac1c1b9b3adf14
hw-breakpoints: ftrace plugin for kernel symbol tracing using HW Breakpoint interfaces

This patch adds an ftrace plugin to detect and profile memory access over kernel
variables. It uses HW Breakpoint interfaces to 'watch memory addresses.

Signed-off-by: K.Prasad <prasad@linux.vnet.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
kernel/trace/Kconfig
kernel/trace/Makefile
kernel/trace/trace.h
kernel/trace/trace_ksym.c [new file with mode: 0644]
kernel/trace/trace_selftest.c