[PATCH 04/77] perf trace: Extract the comm/tid printing for syscall enter
From: Arnaldo Carvalho de Melo <acme@kernel.org>
Date: 2018-09-05 22:05:07
Also in:
lkml
Subsystem:
performance events subsystem, the rest · Maintainers:
Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo, Namhyung Kim, Linus Torvalds
From: Arnaldo Carvalho de Melo <redacted> Will be used with augmented syscalls, where we haven't transitioned completely to combining sys_enter_FOO with sys_exit_FOO, so we'll go as far as having it similar to the end result, strace like, as possible. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <redacted> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <redacted> Link: https://lkml.kernel.org/n/tip-canomaoiybkswwnhj69u9ae4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <redacted> --- tools/perf/builtin-trace.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index bcf882afd6d0..92488edd00eb 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c@@ -1144,11 +1144,9 @@ static void sig_handler(int sig) interrupted = sig == SIGINT; } -static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, - u64 duration, bool duration_calculated, u64 tstamp, FILE *fp) +static size_t trace__fprintf_comm_tid(struct trace *trace, struct thread *thread, FILE *fp) { - size_t printed = trace__fprintf_tstamp(trace, tstamp, fp); - printed += fprintf_duration(duration, duration_calculated, fp); + size_t printed = 0; if (trace->multiple_threads) { if (trace->show_comm)
@@ -1159,6 +1157,14 @@ static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thre return printed; } +static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, + u64 duration, bool duration_calculated, u64 tstamp, FILE *fp) +{ + size_t printed = trace__fprintf_tstamp(trace, tstamp, fp); + printed += fprintf_duration(duration, duration_calculated, fp); + return printed + trace__fprintf_comm_tid(trace, thread, fp); +} + static int trace__process_event(struct trace *trace, struct machine *machine, union perf_event *event, struct perf_sample *sample) {
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2.14.4