diff options
| -rw-r--r-- | tools/perf/Documentation/perf-config.txt | 8 | ||||
| -rw-r--r-- | tools/perf/builtin-trace.c | 20 |
2 files changed, 28 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt index 661b1fb3f8ba..423cb41f6e3f 100644 --- a/tools/perf/Documentation/perf-config.txt +++ b/tools/perf/Documentation/perf-config.txt @@ -521,6 +521,14 @@ diff.*:: Possible values are 'delta', 'delta-abs', 'ratio' and 'wdiff'. Default is 'delta'. +trace.*:: + trace.add_events:: + Allows adding a set of events to add to the ones specified + by the user, or use as a default one if none was specified. + The initial use case is to add augmented_raw_syscalls.o to + activate the 'perf trace' logic that looks for syscall + pointer contents after the normal tracepoint payload. + SEE ALSO -------- linkperf:perf[1] diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 096380e8c213..d754a74aef46 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -22,6 +22,7 @@ #include "builtin.h" #include "util/cgroup.h" #include "util/color.h" +#include "util/config.h" #include "util/debug.h" #include "util/env.h" #include "util/event.h" @@ -3523,6 +3524,21 @@ static void trace__set_bpf_map_syscalls(struct trace *trace) trace->syscalls.map = bpf__find_map_by_name("syscalls"); } +static int trace__config(const char *var, const char *value, void *arg) +{ + int err = 0; + + if (!strcmp(var, "trace.add_events")) { + struct trace *trace = arg; + struct option o = OPT_CALLBACK('e', "event", &trace->evlist, "event", + "event selector. use 'perf list' to list available events", + parse_events_option); + err = parse_events_option(&o, value, 0); + } + + return err; +} + int cmd_trace(int argc, const char **argv) { const char *trace_usage[] = { @@ -3645,6 +3661,10 @@ int cmd_trace(int argc, const char **argv) goto out; } + err = perf_config(trace__config, &trace); + if (err) + goto out; + argc = parse_options_subcommand(argc, argv, trace_options, trace_subcommands, trace_usage, PARSE_OPT_STOP_AT_NON_OPTION); |