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| author | Adrian Hunter <adrian.hunter@intel.com> | 2021-10-27 11:03:33 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-10-27 16:20:45 -0300 |
| commit | 4b2b2c6a7d244464b6142cdbfef441de1499e7ff (patch) | |
| tree | d7ab2d45305dc0b4ad5721a49f4b7455fba77411 /tools | |
| parent | c3afd6e50fce824f551914c690f6b905787783cf (diff) | |
| download | linux-stable-4b2b2c6a7d244464b6142cdbfef441de1499e7ff.tar.gz linux-stable-4b2b2c6a7d244464b6142cdbfef441de1499e7ff.tar.bz2 linux-stable-4b2b2c6a7d244464b6142cdbfef441de1499e7ff.zip | |
perf auxtrace: Add itrace d+o option to direct debug log to stdout
It can be useful to see debug output in between normal output.
Add 'o' to the flags of debug option 'd', so that '--itrace=d+o' can
specify output of the debug log to stdout.
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20211027080334.365596-6-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/Documentation/itrace.txt | 1 | ||||
| -rw-r--r-- | tools/perf/util/auxtrace.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/Documentation/itrace.txt b/tools/perf/Documentation/itrace.txt index 141449e97bed..c52755481e2f 100644 --- a/tools/perf/Documentation/itrace.txt +++ b/tools/perf/Documentation/itrace.txt @@ -62,5 +62,6 @@ debug messages will or will not be logged. Each flag must be preceded by either '+' or '-'. The flags are: a all perf events + o output to stdout If supported, the 'q' option may be repeated to increase the effect. diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h index 889f976ea1a0..bbf0d78c6401 100644 --- a/tools/perf/util/auxtrace.h +++ b/tools/perf/util/auxtrace.h @@ -59,6 +59,7 @@ enum itrace_period_type { #define AUXTRACE_ERR_FLG_DATA_LOST (1 << ('l' - 'a')) #define AUXTRACE_LOG_FLG_ALL_PERF_EVTS (1 << ('a' - 'a')) +#define AUXTRACE_LOG_FLG_USE_STDOUT (1 << ('o' - 'a')) /** * struct itrace_synth_opts - AUX area tracing synthesis options. @@ -641,6 +642,7 @@ bool auxtrace__evsel_is_auxtrace(struct perf_session *session, " d[flags]: create a debug log\n" \ " each flag must be preceded by + or -\n" \ " log flags are: a (all perf events)\n" \ +" o (output to stdout)\n" \ " f: synthesize first level cache events\n" \ " m: synthesize last level cache events\n" \ " t: synthesize TLB events\n" \ |