From: Adrian Hunter Date: Fri, 10 Jul 2020 15:10:59 +0000 (+0300) Subject: perf auxtrace: Add optional log flags to the itrace 'd' option X-Git-Tag: v5.15~3130^2~29 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=935aac2d2dc42c6ea9f0143a57e8d57d976d5307;p=platform%2Fkernel%2Flinux-starfive.git perf auxtrace: Add optional log flags to the itrace 'd' option Allow the 'd' option to be followed by flags which will affect what debug messages will or will not be reported. Each flag must be preceded by either '+' or '-'. The flags are: a all perf events Signed-off-by: Adrian Hunter Reviewed-by: Andi Kleen Cc: Jiri Olsa Link: http://lore.kernel.org/lkml/20200710151104.15137-8-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/Documentation/itrace.txt b/tools/perf/Documentation/itrace.txt index 114d054..9c0e858 100644 --- a/tools/perf/Documentation/itrace.txt +++ b/tools/perf/Documentation/itrace.txt @@ -53,3 +53,8 @@ The flags are: o overflow l trace data lost + + If supported, the 'd' option may be followed by flags which affect what + debug messages will or will not be logged. Each flag must be preceded + by either '+' or '-'. The flags are: + a all perf events diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index f0b0758..e028187 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -1483,6 +1483,9 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str, break; case 'd': synth_opts->log = true; + if (get_flags(&p, &synth_opts->log_plus_flags, + &synth_opts->log_minus_flags)) + goto out_err; break; case 'c': synth_opts->branches = true; diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h index cfe6d00..821ef54 100644 --- a/tools/perf/util/auxtrace.h +++ b/tools/perf/util/auxtrace.h @@ -58,6 +58,8 @@ enum itrace_period_type { #define AUXTRACE_ERR_FLG_OVERFLOW (1 << ('o' - 'a')) #define AUXTRACE_ERR_FLG_DATA_LOST (1 << ('l' - 'a')) +#define AUXTRACE_LOG_FLG_ALL_PERF_EVTS (1 << ('a' - 'a')) + /** * struct itrace_synth_opts - AUX area tracing synthesis options. * @set: indicates whether or not options have been set @@ -96,6 +98,8 @@ enum itrace_period_type { * @range_num: number of time intervals to trace * @error_plus_flags: flags to affect what errors are reported * @error_minus_flags: flags to affect what errors are reported + * @log_plus_flags: flags to affect what is logged + * @log_minus_flags: flags to affect what is logged */ struct itrace_synth_opts { bool set; @@ -131,6 +135,8 @@ struct itrace_synth_opts { int range_num; unsigned int error_plus_flags; unsigned int error_minus_flags; + unsigned int log_plus_flags; + unsigned int log_minus_flags; }; /** @@ -624,7 +630,9 @@ bool auxtrace__evsel_is_auxtrace(struct perf_session *session, " each flag must be preceded by + or -\n" \ " error flags are: o (overflow)\n" \ " l (data lost)\n" \ -" d: create a debug log\n" \ +" d[flags]: create a debug log\n" \ +" each flag must be preceded by + or -\n" \ +" log flags are: a (all perf events)\n" \ " f: synthesize first level cache events\n" \ " m: synthesize last level cache events\n" \ " t: synthesize TLB events\n" \