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authorStanislav Fomichev <sdf@google.com>2018-11-16 03:32:01 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-12-21 15:42:46 +0300
commit14541b1e7e723859ff2c75c6fc10cdbbec6b8c34 (patch)
tree31d881b0ea5ee36a68a161087fb9bd6c6019f330 /tools/build/Makefile.feature
parent5ce29d522e9b8cdc158329a8539bcd6206fc5bf4 (diff)
downloadlinux-14541b1e7e723859ff2c75c6fc10cdbbec6b8c34.tar.xz
perf build: Don't unconditionally link the libbfd feature test to -liberty and -lz
Current libbfd feature test unconditionally links against -liberty and -lz. While it's required on some systems (e.g. opensuse), it's completely unnecessary on the others, where only -lbdf is sufficient (debian). This patch streamlines (and renames) the following feature checks: feature-libbfd - only link against -lbfd (debian), see commit 2cf9040714f3 ("perf tools: Fix bfd dependency libraries detection") feature-libbfd-liberty - link against -lbfd and -liberty feature-libbfd-liberty-z - link against -lbfd, -liberty and -lz (opensuse), see commit 280e7c48c3b8 ("perf tools: fix BFD detection on opensuse") (feature-liberty{,-z} were renamed to feature-libbfd-liberty{,z} for clarity) The main motivation is to fix this feature test for bpftool which is currently broken on debian (libbfd feature shows OFF, but we still unconditionally link against -lbfd and it works). Tested on debian with only -lbfd installed (without -liberty); I'd appreciate if somebody on the other systems can test this new detection method. Signed-off-by: Stanislav Fomichev <sdf@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/4dfc634cfcfb236883971b5107cf3c28ec8a31be.1542328222.git.sdf@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/build/Makefile.feature')
-rw-r--r--tools/build/Makefile.feature4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index d47b8f73e2e7..5467c6bf9ceb 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -82,8 +82,8 @@ FEATURE_TESTS_EXTRA := \
cplus-demangle \
hello \
libbabeltrace \
- liberty \
- liberty-z \
+ libbfd-liberty \
+ libbfd-liberty-z \
libunwind-debug-frame \
libunwind-debug-frame-arm \
libunwind-debug-frame-aarch64 \