From: He Kuang <[email protected]> In perf record, before start recording, call bpf__apply_config() to turn on all BPF config options.
Signed-off-by: Wang Nan <[email protected]> Signed-off-by: He Kuang <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Brendan Gregg <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: David Ahern <[email protected]> Cc: He Kuang <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kaixu Xia <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Zefan Li <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/n/[email protected] --- 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 [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
