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| author |   Wang Nan <wangnan0@huawei.com> | 2016-11-26 07:03:30 +0000 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-12-05 15:51:42 -0300 |
| commit | 2bd42de0e196f89994cbae1990d2c7c5a9b6a529 (patch) | |
| tree | 38f5ca69a0cd1f64eb89715d6a1933eb5c63ee6c /tools/perf/util/bpf-loader.c | |
| parent | perf tools: Pass context to perf hook functions (diff) | |
| download | wireguard-linux-2bd42de0e196f89994cbae1990d2c7c5a9b6a529.tar.xz wireguard-linux-2bd42de0e196f89994cbae1990d2c7c5a9b6a529.zip | |
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 <wangnan0@huawei.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/20161126070354.141764-7-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/bpf-loader.c')
| -rw-r--r-- | tools/perf/util/bpf-loader.c | 4 |
1 files changed, 4 insertions, 0 deletions
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); |