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authorJiri Olsa <jolsa@kernel.org>2016-01-15 05:00:17 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-01-15 20:32:00 +0100
commitb8e52be00ca7e7659e8ee172ce9e6f0c6af28ec8 (patch)
treee1256b3b57121cbbc17d7cf4711c1348347e71fd /tools
parentperf build: Pass O option to kernel makefile in build-test (diff)
downloadlinux-b8e52be00ca7e7659e8ee172ce9e6f0c6af28ec8.tar.xz
linux-b8e52be00ca7e7659e8ee172ce9e6f0c6af28ec8.zip
perf build: Add feature-dump target
To provide FEATURE-DUMP into $(FEATURE_DUMP_COPY) if defined, with no further action. Get feature dump of the current build: $ make feature-dump BUILD: Doing 'make -j4' parallel build Auto-detecting system features: ... dwarf: [ on ] FEATURE-DUMP file available in FEATURE-DUMP Get feature dump static build into /tmp/fd file: $ make feature-dump FEATURE_DUMP_COPY=/tmp/fd LDFLAGS=-static BUILD: Doing 'make -j4' parallel build Auto-detecting system features: ... dwarf: [ OFF ] SNIP FEATURE-DUMP file copied into /tmp/fd Suggested-by: Wang Nan <wangnan0@huawei.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1452830421-77757-6-git-send-email-wangnan0@huawei.com Signed-off-by: Wang Nan <wangnan0@huawei.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/Makefile.perf11
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 0a22407e1d7d..f758a72df1b3 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -611,6 +611,17 @@ clean: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean
$(python-clean)
#
+# To provide FEATURE-DUMP into $(FEATURE_DUMP_COPY)
+# file if defined, with no further action.
+feature-dump:
+ifdef FEATURE_DUMP_COPY
+ @cp $(OUTPUT)FEATURE-DUMP $(FEATURE_DUMP_COPY)
+ @echo "FEATURE-DUMP file copied into $(FEATURE_DUMP_COPY)"
+else
+ @echo "FEATURE-DUMP file available in $(OUTPUT)FEATURE-DUMP"
+endif
+
+#
# Trick: if ../../.git does not exist - we are building out of tree for example,
# then force version regeneration:
#