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authorIan Rogers <irogers@google.com>2021-09-23 03:10:21 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2021-09-28 22:08:37 +0300
commitb758a61b391fb5ed749f4848f444d8223ae0a324 (patch)
tree29390abf6af50f9efc9438f8525fb8b86e80021b /tools/perf/Makefile.config
parent3d5ac9effcc640d5d66bc6d833e1dcc9faa279aa (diff)
downloadlinux-b758a61b391fb5ed749f4848f444d8223ae0a324.tar.xz
perf tools: Enable libtracefs dynamic linking
Currently libtracefs isn't used by perf, but there are potential improvements by using it as identified Steven Rostedt's e-mail: https://lore.kernel.org/lkml/20210610154759.1ef958f0@oasis.local.home/ This change is modelled on the dynamic libtraceevent patch by Michael Petlan: https://lore.kernel.org/linux-perf-users/20210428092023.4009-1-mpetlan@redhat.com/ v3. Adds file missed in v1 and v2 spotted by Jiri Olsa. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com> Cc: linux-trace-devel@vger.kernel.org Link: http://lore.kernel.org/lkml/20210923001024.550263-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Makefile.config')
-rw-r--r--tools/perf/Makefile.config9
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 446180401e26..00ec900ddbca 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -1098,6 +1098,15 @@ ifdef LIBTRACEEVENT_DYNAMIC
endif
endif
+ifdef LIBTRACEFS_DYNAMIC
+ $(call feature_check,libtracefs)
+ ifeq ($(feature-libtracefs), 1)
+ EXTLIBS += -ltracefs
+ else
+ dummy := $(error Error: No libtracefs devel library found, please install libtracefs-dev);
+ endif
+endif
+
# Among the variables below, these:
# perfexecdir
# perf_include_dir