Creating the FEATURE-INCLUDE file, that contains all features
status dumped in make's variable format:
...
feature-backtrace=1
feature-dwarf=1
...
It's purpose is to be included in sub-project makefiles to get
features detection state. This way we can run the detection only
in top level project and propagate it down.
Cc: Wang Nan <wangn...@huawei.com>
Link: http://lkml.kernel.org/n/tip-fcq5rtdhcu4300sjp2p8l...@git.kernel.org
Signed-off-by: Jiri Olsa <jo...@kernel.org>
---
tools/build/Makefile.feature | 12 ++++++++++++
tools/lib/bpf/.gitignore | 1 +
tools/lib/bpf/Makefile | 2 +-
tools/perf/.gitignore | 1 +
tools/perf/Makefile.perf | 2 +-
5 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 37ff4c9f92f1..51f8d5928f98 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -131,6 +131,16 @@ ifeq ($(dwarf-post-unwind),1)
FEATURE_DUMP += dwarf-post-unwind($(dwarf-post-unwind-text))
endif
+# The FEATURE-INCLUDE file contains all features status
+# dumped in make's variable format:
+# ...
+# feature-backtrace=1
+# feature-dwarf=1
+# ...
+# It's to be included in sub-project makefiles to get
+# features detection state.
+FEATURE_INCLUDE_FILENAME = $(OUTPUT)FEATURE-INCLUDE$(FEATURE_USER)
+
# The $(feature_display) controls the default detection message
# output. It's set if:
# - detected features differes from stored features from
@@ -140,6 +150,8 @@ endif
ifneq ("$(FEATURE_DUMP)","$(FEATURE_DUMP_FILE)")
$(shell echo "$(FEATURE_DUMP)" > $(FEATURE_DUMP_FILENAME))
+ $(shell rm -f $(FEATURE_INCLUDE_FILENAME))
+ $(foreach feat,$(FEATURE_TESTS),$(shell echo "feature-$(feat)=$(feature-$(feat))"
>> $(FEATURE_INCLUDE_FILENAME)))
feature_display := 1
endif
diff --git a/tools/lib/bpf/.gitignore b/tools/lib/bpf/.gitignore
index f81e549ddfdb..4019b8e4021a 100644
--- a/tools/lib/bpf/.gitignore
+++ b/tools/lib/bpf/.gitignore
@@ -1,2 +1,3 @@
libbpf_version.h
FEATURE-DUMP.libbpf
+FEATURE-INCLUDE.libbpf
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index 636e3ddb93a1..6916cbe962a5 100644
--- a/tools/lib/bpf/Makefile
+++ b/tools/lib/bpf/Makefile
@@ -190,7 +190,7 @@ config-clean:
clean:
$(call QUIET_CLEAN, libbpf) $(RM) *.o *~ $(TARGETS) *.a *.so
$(VERSION_FILES) .*.d \
$(RM) LIBBPF-CFLAGS
- $(call QUIET_CLEAN, core-gen) $(RM) $(OUTPUT)FEATURE-DUMP.libbpf
+ $(call QUIET_CLEAN, core-gen) $(RM) $(OUTPUT)FEATURE-DUMP.libbpf
$(OUTPUT)FEATURE-INCLUDE.libbpf
diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
index 3d1bb802dbf4..4a3eb8dedc54 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -2,6 +2,7 @@ PERF-CFLAGS
PERF-GUI-VARS
PERF-VERSION-FILE
FEATURE-DUMP
+FEATURE-INCLUDE
perf
perf-read-vdso32
perf-read-vdsox32
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 929a32ba15f5..b74f924185b7 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -589,7 +589,7 @@ clean: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean
$(LIBBPF)-clean config-clean
$(Q)find . -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name
'\.*.d' -delete
$(Q)$(RM) $(OUTPUT).config-detected
$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf
perf-read-vdso32 perf-read-vdsox32
- $(call QUIET_CLEAN, core-gen) $(RM) *.spec *.pyc *.pyo */*.pyc
*/*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE
$(OUTPUT)FEATURE-DUMP $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex* \
+ $(call QUIET_CLEAN, core-gen) $(RM) *.spec *.pyc *.pyo */*.pyc
*/*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE
$(OUTPUT)FEATURE-DUMP $(OUTPUT)FEATURE-INCLUDE $(OUTPUT)util/*-bison*
$(OUTPUT)util/*-flex* \
$(OUTPUT)util/intel-pt-decoder/inat-tables.c
$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean
$(python-clean)
--
2.4.3
