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tracing/ftrace: syscall tracing infrastructure, basics

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Provide basic callbacks to do syscall tracing.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
LKML-Reference: <1236401580-5758-2-git-send-email-fweisbec@gmail.com>
[ simplified it to a trace_printk() for now. ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Frederic Weisbecker
2009-03-07 05:52:59 +01:00
committed by Ingo Molnar
parent 4c6ed8f496
commit ee08c6eccb
5 changed files with 147 additions and 0 deletions
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10
kernel/trace/Kconfig
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@@ -34,6 +34,9 @@ config HAVE_FTRACE_MCOUNT_RECORD
config HAVE_HW_BRANCH_TRACER
bool
config HAVE_FTRACE_SYSCALLS
bool
config TRACER_MAX_TRACE
bool
@@ -175,6 +178,13 @@ config EVENT_TRACER
allowing the user to pick and choose which trace point they
want to trace.
config FTRACE_SYSCALLS
bool "Trace syscalls"
depends on HAVE_FTRACE_SYSCALLS
select TRACING
help
Basic tracer to catch the syscall entry and exit events.
config BOOT_TRACER
bool "Trace boot initcalls"
select TRACING