perf build: Add sdt feature detection
This checks whether sys/sdt.h is available or not, which is required for
DTRACE_PROBE().
We can disable this feature by passing NO_SDT=1 when building.
This flag will be used for SDT test case and further SDT events in
perftools.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146831795615.17065.17513820540591053933.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 5ac4280..24803c5 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -355,6 +355,16 @@
endif # NO_LIBBPF
endif # NO_LIBELF
+ifndef NO_SDT
+ ifneq ($(feature-sdt), 1)
+ msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
+ NO_SDT := 1;
+ else
+ CFLAGS += -DHAVE_SDT_EVENT
+ $(call detected,CONFIG_SDT_EVENT)
+ endif
+endif
+
ifdef PERF_HAVE_JITDUMP
ifndef NO_DWARF
$(call detected,CONFIG_JITDUMP)