From: Arnaldo Carvalho de Melo acme@redhat.com
[ Upstream commit aa8f9c517ebce7a0959da064ef2660ea03f133f8 ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/Makefile.config | 2 ++ 1 file changed, 2 insertions(+)
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