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authorWang Nan <wangnan0@huawei.com>2016-11-26 10:03:34 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-12-05 21:51:43 +0300
commit00b86691c77c6576861b82a3cfe4d609800758fe (patch)
tree50161d349254c75fb8707c370c96cd8a205f3e9c /tools/perf/util/Build
parentd58ac0bf8d1e6ffbfcb0a77e459cf4737b131b75 (diff)
downloadlinux-00b86691c77c6576861b82a3cfe4d609800758fe.tar.xz
perf clang: Add builtin clang support ant test case
Add basic clang support in clang.cpp and test__clang() testcase. The first testcase checks if builtin clang is able to generate LLVM IR. tests/clang.c is a proxy. Real testcase resides in utils/c++/clang-test.cpp in c++ and exports C interface to perf test subsystem. Test result: $ perf test -v clang 51: builtin clang support : 51.1: Test builtin clang compile C source to IR : --- start --- test child forked, pid 13215 test child finished with 0 ---- end ---- Test builtin clang support subtest 0: Ok Committer note: Make sure you've enabled CLANG and LLVM builtin support by setting the LIBCLANGLLVM variable on the make command line, e.g.: make LIBCLANGLLVM=1 O=/tmp/build/perf -C tools/perf install-bin Otherwise you'll get this when trying to do the 'perf test' call above: # perf test clang 51: builtin clang support : Skip (not compiled in) # Signed-off-by: Wang Nan <wangnan0@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexei Starovoitov <ast@fb.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Joe Stringer <joe@ovn.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/20161126070354.141764-11-wangnan0@huawei.com [ Removed "Test" from descriptions, redundant and already removed from all the other entries ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/Build')
-rw-r--r--tools/perf/util/Build2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index bdad82a9812d..3840e3a87057 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -126,6 +126,8 @@ endif
libperf-y += perf-hooks.o
+libperf-$(CONFIG_CXX) += c++/
+
CFLAGS_config.o += -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
# avoid compiler warnings in 32-bit mode
CFLAGS_genelf_debug.o += -Wno-packed