From 2bd42de0e196f89994cbae1990d2c7c5a9b6a529 Mon Sep 17 00:00:00 2001 From: Wang Nan Date: Sat, 26 Nov 2016 07:03:30 +0000 Subject: perf llvm: Extract helpers in llvm-utils.c The following commits will use builtin clang to compile BPF scripts. llvm__get_kbuild_opts() and llvm__get_nr_cpus() are extracted to help building '-DKERNEL_VERSION_CODE' and '-D__NR_CPUS__' macros. Doing object dumping in bpf loader, so further builtin clang compiling needn't consider it. Signed-off-by: Wang Nan Cc: Alexei Starovoitov Cc: He Kuang Cc: Jiri Olsa Cc: Joe Stringer Cc: Zefan Li Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/20161126070354.141764-7-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/bpf-loader.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'tools/perf/util/bpf-loader.c') diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c index a5fd275238f7..cf16b94115b5 100644 --- a/tools/perf/util/bpf-loader.c +++ b/tools/perf/util/bpf-loader.c @@ -90,6 +90,10 @@ struct bpf_object *bpf__prepare_load(const char *filename, bool source) if (err) return ERR_PTR(-BPF_LOADER_ERRNO__COMPILE); obj = bpf_object__open_buffer(obj_buf, obj_buf_sz, filename); + + if (!IS_ERR(obj) && llvm_param.dump_obj) + llvm__dump_obj(filename, obj_buf, obj_buf_sz); + free(obj_buf); } else obj = bpf_object__open(filename); -- cgit v1.2.3