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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-02-12 11:20:56 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-02-14 15:17:40 -0300 |
| commit | aa8f9c517ebce7a0959da064ef2660ea03f133f8 (patch) | |
| tree | 0c6b2b8365c3a9c07e87384de07602607f116c0a /tools/perf/Makefile.config | |
| parent | 1da7e0022784b0e05b49bf73521fa2cc4633af85 (diff) | |
| download | lwn-aa8f9c517ebce7a0959da064ef2660ea03f133f8.tar.gz lwn-aa8f9c517ebce7a0959da064ef2660ea03f133f8.zip | |
tools build: Add -lrt to FEATURE_CHECK_LDFLAGS-libaio
Since we need it to resolve the AIO symbols, otherwise we fail with:
$ cat /tmp/build/perf/feature/test-all.make.output
/usr/bin/ld: /tmp/ccEqrj36.o: undefined reference to symbol 'aio_return64@@GLIBC_2.2.5'
/usr/bin/ld: //usr/lib64/librt.so.1: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
$
When we added the aio support in 'perf record' only the test-libaio.bin
target got the -lrt, i.e. the feature detection slow path. Fix it.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Fixes: 2a07d814747b ("tools build feature: Check if libaio is available")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Makefile.config')
| -rw-r--r-- | tools/perf/Makefile.config | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index b441c88cafa1..e6360d47e73a 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -218,6 +218,8 @@ FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS) FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS) FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS) +FEATURE_CHECK_LDFLAGS-libaio = -lrt + CFLAGS += -fno-omit-frame-pointer CFLAGS += -ggdb3 CFLAGS += -funwind-tables |