diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-05-04 12:23:29 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-05-15 14:31:23 -0300 |
| commit | dd8e4ead6e983acea959d10252688ef1471106fe (patch) | |
| tree | d5bd2697f2da73fe19477a08694cf0148ab0db52 /tools/perf | |
| parent | 8f12a2ff00e5e48ad5618167bac72cad7c9f214e (diff) | |
perf bpf: Add bpf.h to be used in eBPF proggies
So, the first helper is the one shortening a variable/function section
attribute, from, for instance:
char _license[] __attribute__((section("license"), used)) = "GPL";
to:
char _license[] SEC("license") = "GPL";
Convert empty.c to that and it becomes:
# cat ~acme/lib/examples/perf/bpf/empty.c
#include <bpf.h>
char _license[] SEC("license") = "GPL";
int _version SEC("version") = LINUX_VERSION_CODE;
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-zmeg52dlvy51rdlhyumfl5yf@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/Makefile.perf | 1 | ||||
| -rw-r--r-- | tools/perf/examples/bpf/empty.c | 6 | ||||
| -rw-r--r-- | tools/perf/include/bpf/bpf.h | 5 |
3 files changed, 10 insertions, 2 deletions
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 9343b7d945bb..c63a3971d719 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -770,6 +770,7 @@ endif ifndef NO_LIBBPF $(call QUIET_INSTALL, lib) \ $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf' + $(INSTALL) include/bpf/*.h '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf' $(call QUIET_INSTALL, lib) \ $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf' $(INSTALL) examples/bpf/*.c '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf' diff --git a/tools/perf/examples/bpf/empty.c b/tools/perf/examples/bpf/empty.c index 78754df53ac1..86f97763355d 100644 --- a/tools/perf/examples/bpf/empty.c +++ b/tools/perf/examples/bpf/empty.c @@ -1,2 +1,4 @@ -char _license[] __attribute__((section("license"), used)) = "GPL"; -int _version __attribute__((section("version"), used)) = LINUX_VERSION_CODE; +#include <bpf.h> + +char _license[] SEC("license") = "GPL"; +int _version SEC("version") = LINUX_VERSION_CODE; diff --git a/tools/perf/include/bpf/bpf.h b/tools/perf/include/bpf/bpf.h new file mode 100644 index 000000000000..003afcab4e51 --- /dev/null +++ b/tools/perf/include/bpf/bpf.h @@ -0,0 +1,5 @@ +// SPDX-License-Identifier: GPL-2.0 +#ifndef _PERF_BPF_H +#define _PERF_BPF_H +#define SEC(NAME) __attribute__((section(NAME), used)) +#endif /* _PERF_BPF_H */ |