hw-breakpoints: ftrace plugin for kernel symbol tracing using HW Breakpoint interfaces

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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>

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K.Prasad 2009-06-01 23:46:40 +05:30 • committed by Frederic Weisbecker

parent 432039933a

commit 0722db015c

5 changed files with 623 additions and 0 deletions

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21

kernel/trace/Kconfig

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1

kernel/trace/Makefile

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23

kernel/trace/trace.h

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525

kernel/trace/trace_ksym.c

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53

kernel/trace/trace_selftest.c

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