diff options
| author | Mike Frysinger <vapier@gentoo.org> | 2009-09-14 20:10:15 -0400 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2009-09-14 21:43:15 -0400 |
| commit | 555f386c98cc93890f48fdea098936755270304b (patch) | |
| tree | 1c0d9c2124327511e2e5bb26b24d305e8f701341 /kernel/trace | |
| parent | 1f5a6b45416694ff8c0d04625f1a438a0e380add (diff) | |
ftrace: document function and function graph implementation
While implementing function tracer and function tracer graph support,
I found the exact arch implementation details to be a bit lacking
(and my x86 foo ain't great). So after pounding out support for
the Blackfin arch, start documenting the requirements/details.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
LKML-Reference: <1252973415-21264-1-git-send-email-vapier@gentoo.org>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/Kconfig | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index aa002cef924..e7163460440 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -11,12 +11,18 @@ config NOP_TRACER config HAVE_FTRACE_NMI_ENTER bool + help + See Documentation/trace/ftrace-implementation.txt config HAVE_FUNCTION_TRACER bool + help + See Documentation/trace/ftrace-implementation.txt config HAVE_FUNCTION_GRAPH_TRACER bool + help + See Documentation/trace/ftrace-implementation.txt config HAVE_FUNCTION_GRAPH_FP_TEST bool @@ -28,21 +34,25 @@ config HAVE_FUNCTION_GRAPH_FP_TEST config HAVE_FUNCTION_TRACE_MCOUNT_TEST bool help - This gets selected when the arch tests the function_trace_stop - variable at the mcount call site. Otherwise, this variable - is tested by the called function. + See Documentation/trace/ftrace-implementation.txt config HAVE_DYNAMIC_FTRACE bool + help + See Documentation/trace/ftrace-implementation.txt config HAVE_FTRACE_MCOUNT_RECORD bool + help + See Documentation/trace/ftrace-implementation.txt config HAVE_HW_BRANCH_TRACER bool config HAVE_SYSCALL_TRACEPOINTS bool + help + See Documentation/trace/ftrace-implementation.txt config TRACER_MAX_TRACE bool |