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| author | Wang Nan <wangnan0@huawei.com> | 2016-11-26 08:03:30 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-12-05 19:51:42 +0100 |
| commit | 2bd42de0e196f89994cbae1990d2c7c5a9b6a529 (patch) | |
| tree | 38f5ca69a0cd1f64eb89715d6a1933eb5c63ee6c /tools/perf/util/llvm-utils.h | |
| parent | perf tools: Pass context to perf hook functions (diff) | |
| download | linux-2bd42de0e196f89994cbae1990d2c7c5a9b6a529.tar.xz 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/llvm-utils.h')
| -rw-r--r-- | tools/perf/util/llvm-utils.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/util/llvm-utils.h b/tools/perf/util/llvm-utils.h index 9f501cef06a1..c87a2a92a88f 100644 --- a/tools/perf/util/llvm-utils.h +++ b/tools/perf/util/llvm-utils.h @@ -50,4 +50,10 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf, size_t *p_obj_buf_sz); /* This function is for test__llvm() use only */ int llvm__search_clang(void); + +/* Following functions are reused by builtin clang support */ +void llvm__get_kbuild_opts(char **kbuild_dir, char **kbuild_include_opts); +int llvm__get_nr_cpus(void); + +void llvm__dump_obj(const char *path, void *obj_buf, size_t size); #endif |