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authorAlexey Budankov <alexey.budankov@linux.intel.com>2019-03-18 20:39:49 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-04-01 21:18:10 +0300
commit3b1c5d9659718263c7f9c93af82f98221c58f171 (patch)
treedfc88dc1aa8d485b02042eed1e3d5be7a0223222 /tools/perf/Makefile.perf
parentc9bd7796959a8b92afe79c392dd54992bfc67328 (diff)
downloadlinux-3b1c5d9659718263c7f9c93af82f98221c58f171.tar.xz
tools build: Implement libzstd feature check, LIBZSTD_DIR and NO_LIBZSTD defines
Implement libzstd feature check, NO_LIBZSTD and LIBZSTD_DIR defines to override Zstd library sources or disable the feature from the command line: $ make -C tools/perf LIBZSTD_DIR=/path/to/zstd/sources/ clean all $ make -C tools/perf NO_LIBZSTD=1 clean all Auto detection feature status is reported just before compilation starts. If your system has some version of the zstd library preinstalled then the build system finds and uses it during the build. If you still prefer to compile with some other version of zstd library you have capability to refer the compilation to that version using LIBZSTD_DIR define. Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com> Reviewed-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/9b4cd8b0-10a3-1f1e-8d6b-5922a7ca216b@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Makefile.perf')
-rw-r--r--tools/perf/Makefile.perf3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index e8c9f77e9010..c706548d5b10 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -108,6 +108,9 @@ include ../scripts/utilities.mak
# streaming for record mode. Currently Posix AIO trace streaming is
# supported only when linking with glibc.
#
+# Define NO_LIBZSTD if you do not want support of Zstandard based runtime
+# trace compression in record mode.
+#
# As per kernel Makefile, avoid funny character set dependencies
unexport LC_ALL