[PATCH v2 3/4] perf: Add define for libtracefs version

From: Ian Rogers
Date: Tue Sep 21 2021 - 16:49:02 EST


This will allow version specific support of libtracefs.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
tools/perf/Makefile.config | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 2001c315f0db..0ae2e3d8b832 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -1108,6 +1108,12 @@ ifdef LIBTRACEFS_DYNAMIC
$(call feature_check,libtracefs)
ifeq ($(feature-libtracefs), 1)
EXTLIBS += -ltracefs
+ LIBTRACEFS_VERSION := $(shell $(PKG_CONFIG) --modversion libtracefs)
+ LIBTRACEFS_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEFS_VERSION)))
+ LIBTRACEFS_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEFS_VERSION)))
+ LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
+ LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
+ CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
else
dummy := $(error Error: No libtracefs devel library found, please install libtracefs-dev);
endif
--
2.33.0.464.g1972c5931b-goog