Adding the required mechanic allowing 'perf list pmu' to
discover coresight ETM/PTM tracers.
Signed-off-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
---
tools/perf/arch/arm/util/Build | 2 ++
tools/perf/arch/arm/util/pmu.c | 18 ++++++++++++++++++
tools/perf/builtin-inject.c | 2 +-
tools/perf/builtin-record.c | 2 +-
tools/perf/config/Makefile | 20 ++++++++++++++------
tools/perf/util/auxtrace.h | 2 +-
6 files changed, 37 insertions(+), 9 deletions(-)
create mode 100644 tools/perf/arch/arm/util/pmu.c
diff --git a/tools/perf/arch/arm/util/Build b/tools/perf/arch/arm/util/Build
index d22e3d07de3d..371a3bf12297 100644
--- a/tools/perf/arch/arm/util/Build
+++ b/tools/perf/arch/arm/util/Build
@@ -2,3 +2,5 @@ libperf-$(CONFIG_DWARF) += dwarf-regs.o
libperf-$(CONFIG_LIBUNWIND) += unwind-libunwind.o
libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
+
+libperf-$(CONFIG_AUXTRACE_ARM) += pmu.o
diff --git a/tools/perf/arch/arm/util/pmu.c b/tools/perf/arch/arm/util/pmu.c
new file mode 100644
index 000000000000..2870a4e04e48
--- /dev/null
+++ b/tools/perf/arch/arm/util/pmu.c
@@ -0,0 +1,18 @@
+#include <string.h>
+
+#include <linux/coresight-pmu.h>
+#include <linux/perf_event.h>
+
+#include "../../util/pmu.h"
+
+struct perf_event_attr
+*perf_pmu__get_default_config(struct perf_pmu *pmu __maybe_unused)
+{
+#ifdef HAVE_AUXTRACE_SUPPORT_ARM
+ if (!strcmp(pmu->name, CORESIGHT_ETM_PMU_NAME)) {
+ /* add ETM default config here */
+ pmu->selectable = true;
+ }
+#endif
+ return NULL;
+}
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index c19e034b4023..a567cd628156 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -95,7 +95,7 @@ static int perf_event__repipe_attr(struct perf_tool *tool,
return perf_event__repipe_synth(tool, event);
}
-#ifdef HAVE_AUXTRACE_SUPPORT_X86
+#if defined(HAVE_AUXTRACE_SUPPORT_X86) || defined(HAVE_AUXTRACE_SUPPORT_ARM)
static int copy_bytes(struct perf_inject *inject, int fd, off_t size)
{
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 39cbbdb07891..f37f890f676e 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -141,7 +141,7 @@ static void record__sig_exit(void)
raise(signr);
}
-#ifdef HAVE_AUXTRACE_SUPPORT_X86
+#if defined(HAVE_AUXTRACE_SUPPORT_X86) || defined(HAVE_AUXTRACE_SUPPORT_ARM)
static int record__process_auxtrace(struct perf_tool *tool,
union perf_event *event, void *data1,
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 5fd4843c691d..62fa7596b507 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -626,13 +626,21 @@ ifdef LIBBABELTRACE
endif
ifndef NO_AUXTRACE
- ifeq ($(feature-get_cpuid), 0)
- msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
- NO_AUXTRACE := 1
+ ifeq ($(ARCH),x86)
+ ifeq ($(feature-get_cpuid), 0)
+ msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
+ NO_AUXTRACE := 1
+ else
+ $(call detected,CONFIG_AUXTRACE)
+ $(call detected,CONFIG_AUXTRACE_X86)
+ CFLAGS += -DHAVE_AUXTRACE_SUPPORT_X86
+ endif
else
- $(call detected,CONFIG_AUXTRACE)
- $(call detected,CONFIG_AUXTRACE_X86)
- CFLAGS += -DHAVE_AUXTRACE_SUPPORT_X86
+ ifeq ($(ARCH),$(filter $(ARCH), arm arm64))
+ $(call detected,CONFIG_AUXTRACE)
+ $(call detected,CONFIG_AUXTRACE_ARM)
+ CFLAGS += -DHAVE_AUXTRACE_SUPPORT_ARM
+ endif
endif
endif
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index b9ac99fb5a17..ed1c940be883 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -309,7 +309,7 @@ struct auxtrace_record {
unsigned int alignment;
};
-#ifdef HAVE_AUXTRACE_SUPPORT_X86
+#if defined(HAVE_AUXTRACE_SUPPORT_X86) || defined(HAVE_AUXTRACE_SUPPORT_ARM)
/*
* In snapshot mode the mmapped page is read-only which makes using
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-doc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
