Commit-ID: 9fd629f9a6d0eded133f5f9866226f6bbfe5f50d Gitweb: http://git.kernel.org/tip/9fd629f9a6d0eded133f5f9866226f6bbfe5f50d Author: Adrian Hunter <[email protected]> AuthorDate: Fri, 26 May 2017 11:17:12 +0300 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Wed, 21 Jun 2017 11:35:48 -0300
perf intel-pt: Add default config for pass-through branch enable Branch tracing is enabled by default, so a fake config bit called 'pt' (pass-through) was added to allow the 'branch enable' bit to have affect. Add default config 'pt,branch' which will allow users to disable branch tracing using 'branch=0' instead of having to specify 'pt,branch=0'. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/arch/x86/util/intel-pt.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c index 6fe667b..9535be5 100644 --- a/tools/perf/arch/x86/util/intel-pt.c +++ b/tools/perf/arch/x86/util/intel-pt.c @@ -192,6 +192,7 @@ static u64 intel_pt_default_config(struct perf_pmu *intel_pt_pmu) int psb_cyc, psb_periods, psb_period; int pos = 0; u64 config; + char c; pos += scnprintf(buf + pos, sizeof(buf) - pos, "tsc"); @@ -225,6 +226,10 @@ static u64 intel_pt_default_config(struct perf_pmu *intel_pt_pmu) } } + if (perf_pmu__scan_file(intel_pt_pmu, "format/pt", "%c", &c) == 1 && + perf_pmu__scan_file(intel_pt_pmu, "format/branch", "%c", &c) == 1) + pos += scnprintf(buf + pos, sizeof(buf) - pos, ",pt,branch"); + pr_debug2("%s default config: %s\n", intel_pt_pmu->name, buf); intel_pt_parse_terms(&intel_pt_pmu->format, buf, &config);
