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authorMasami Hiramatsu <mhiramat@kernel.org>2018-08-21 10:27:58 +0300
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2018-08-21 16:11:49 +0300
commit6b7dca401cb148603158119c89319c85228a2a61 (patch)
tree80cf732b6323ea9da7ded1eebe90c917cc08df86 /kernel/trace/Makefile
parentbb730b5833b5bddf5cb226865e5f4496770d00b0 (diff)
downloadlinux-6b7dca401cb148603158119c89319c85228a2a61.tar.xz
tracing: Allow gcov profiling on only ftrace subsystem
Add GCOV_PROFILE_FTRACE to allow gcov profiling on only files in ftrace subsystem. This config option will be used for checking kselftest/ftrace coverage. Link: http://lkml.kernel.org/r/153483647755.32472.4746349899604275441.stgit@devbox Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/Makefile')
-rw-r--r--kernel/trace/Makefile5
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile
index 98d53b39a8ee..f81dadbc7c4a 100644
--- a/kernel/trace/Makefile
+++ b/kernel/trace/Makefile
@@ -23,6 +23,11 @@ ifdef CONFIG_TRACING_BRANCHES
KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
endif
+# for GCOV coverage profiling
+ifdef CONFIG_GCOV_PROFILE_FTRACE
+GCOV_PROFILE := y
+endif
+
CFLAGS_trace_benchmark.o := -I$(src)
CFLAGS_trace_events_filter.o := -I$(src)