From: He Kuang <heku...@huawei.com> In perf record, before start recording, call bpf__apply_config() to turn on all BPF config options.
Signed-off-by: Wang Nan <wangn...@huawei.com> Signed-off-by: He Kuang <heku...@huawei.com> Cc: Arnaldo Carvalho de Melo <a...@redhat.com> Cc: Alexei Starovoitov <a...@plumgrid.com> Cc: Brendan Gregg <brendan.d.gr...@gmail.com> Cc: Daniel Borkmann <dan...@iogearbox.net> Cc: David Ahern <dsah...@gmail.com> Cc: He Kuang <heku...@huawei.com> Cc: Jiri Olsa <jo...@kernel.org> Cc: Kaixu Xia <xiaka...@huawei.com> Cc: Masami Hiramatsu <masami.hiramatsu...@hitachi.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Paul Mackerras <pau...@samba.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Cc: Zefan Li <lize...@huawei.com> Cc: pi3or...@163.com Link: http://lkml.kernel.org/n/ebpf-ziazd5s4t9j96d01t5bdb...@git.kernel.org --- tools/perf/builtin-record.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 200f221..a47ce9e 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -32,6 +32,7 @@ #include "util/parse-branch-options.h" #include "util/parse-regs-options.h" #include "util/llvm-utils.h" +#include "util/bpf-loader.h" #include <unistd.h> #include <sched.h> @@ -524,6 +525,15 @@ static int __cmd_record(struct record *rec, int argc, const char **argv) goto out_child; } + err = bpf__apply_config(); + if (err) { + char errbuf[BUFSIZ]; + + bpf__strerror_apply_config(err, errbuf, sizeof(errbuf)); + pr_warning("WARNING: Apply config to BPF failed: %s\n", + errbuf); + } + /* * Normally perf_session__new would do this, but it doesn't have the * evlist. -- 1.8.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
