perf tests: Add LLVM test for eBPF on-the-fly compiling
authorWang Nan <wangnan0@huawei.com>
Wed, 8 Jul 2015 10:04:02 +0000 (10:04 +0000)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Fri, 7 Aug 2015 13:57:24 +0000 (10:57 -0300)
commit9bc898c7019383b6aa2ae6cb2928c4ca926449f0
tree0ba71f573541cf42609230d8d96bc5e4c295536c
parent0c6d18bfd551622b438e216e4863155f47907b0d
perf tests: Add LLVM test for eBPF on-the-fly compiling

Previous patches introduce llvm__compile_bpf() to compile source file to
eBPF object. This patch adds testcase to test it. It also tests libbpf
by opening generated object after applying next patch which introduces
HAVE_LIBBPF_SUPPORT option.

Since llvm__compile_bpf() prints long messages which users who don't
explicitly test llvm doesn't care, this patch set verbose to -1 to
suppress all debug, warning and error message, and hint user use 'perf
test -v' to see the full output.

For the same reason, if clang is not found in PATH and there's no [llvm]
section in .perfconfig, skip this test.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: David Ahern <dsahern@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kaixu Xia <xiakaixu@huawei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/n/1436445342-1402-17-git-send-email-wangnan0@huawei.com
[ Add tools/lib/bpf/ to tools/perf/MANIFEST, so that the tarball targets build ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/MANIFEST
tools/perf/tests/Build
tools/perf/tests/builtin-test.c
tools/perf/tests/llvm.c [new file with mode: 0644]
tools/perf/tests/tests.h
tools/perf/util/llvm-utils.c
tools/perf/util/llvm-utils.h