Merge tag 'perf-core-for-mingo-5.3-20190621' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

perf trace:

  Arnaldo Carvalho de Melo:

  - Fix exclusion of not available syscall names from selector list.

  - Fixup pointer arithmetic when consuming augmented syscall args.

Intel PT:

  Adrian Hunter:

  - Add support for decoding PEBS via PT packets. See:

      https://software.intel.com/en-us/articles/intel-sdm
      May 2019 version: Vol. 3B 18.5.5.2 PEBS output to Intel® Processor Trace

  for more details about it.

ARM64:

  John Garry:

  - Fix uncore PMU alias list for ARM64

  Raphael Gault:

  - Compile tests unconditionally.

cs-etm:

  Mathieu Poirier:

  - Optimize option setup for CPU-wide sessions.

build:

  Florian Fainelli:

  - Don't hardcode host include path for libslang, fixing up building with it
    in cross build environments.

  Arnaldo Carvalho de Melo:

  - Check if gettid() is available before providing helper, fixing the build
    when using the latest glibc version, where a helper for gettid() is finally
    present.

  - Fix building with libslang in systems where it is located in slang/slang.h.

  - Fix fast path test for zstd library.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 8 insertions, 12 deletions

diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c
index 279c69caef91..c6f1ab5499b5 100644
--- a/tools/perf/arch/arm/util/cs-etm.c
+++ b/tools/perf/arch/arm/util/cs-etm.c
@@ -162,20 +162,19 @@ static int cs_etm_set_option(struct auxtrace_record *itr,
 		    !cpu_map__has(online_cpus, i))
 			continue;
 
-		switch (option) {
-		case ETM_OPT_CTXTID:
+		if (option & ETM_OPT_CTXTID) {
 			err = cs_etm_set_context_id(itr, evsel, i);
 			if (err)
 				goto out;
-			break;
-		case ETM_OPT_TS:
+		}
+		if (option & ETM_OPT_TS) {
 			err = cs_etm_set_timestamp(itr, evsel, i);
 			if (err)
 				goto out;
-			break;
-		default:
-			goto out;
 		}
+		if (option & ~(ETM_OPT_CTXTID | ETM_OPT_TS))
+			/* Nothing else is currently supported */
+			goto out;
 	}
 
 	err = 0;
@@ -398,11 +397,8 @@ static int cs_etm_recording_options(struct auxtrace_record *itr,
 	if (!cpu_map__empty(cpus)) {
 		perf_evsel__set_sample_bit(cs_etm_evsel, CPU);
 
-		err = cs_etm_set_option(itr, cs_etm_evsel, ETM_OPT_CTXTID);
-		if (err)
-			goto out;
-
-		err = cs_etm_set_option(itr, cs_etm_evsel, ETM_OPT_TS);
+		err = cs_etm_set_option(itr, cs_etm_evsel,
+					ETM_OPT_CTXTID | ETM_OPT_TS);
 		if (err)
 			goto out;
 	}