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authorRobert Walker <robert.walker@arm.com>2018-12-03 15:18:46 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-12-17 20:56:18 +0300
commita7ee4d625ede4f62146ff3bb2aeee074e4cf5fa1 (patch)
tree8a483cf55c7b793667eb1bdccd4de53456fcc564 /tools/build
parent00879763fcf21f4b32d63d2241c877f8c1df950e (diff)
downloadlinux-a7ee4d625ede4f62146ff3bb2aeee074e4cf5fa1.tar.xz
perf cs-etm: Support for ARM A32/T32 instruction sets in CoreSight trace
This patch adds support for generating instruction samples from trace of AArch32 programs using the A32 and T32 instruction sets. T32 has variable 2 or 4 byte instruction size, so the conversion between addresses and instruction counts requires extra information from the trace decoder, requiring version 0.10.0 of OpenCSD. A check for the OpenCSD library version has been added to the feature check for OpenCSD. Signed-off-by: Robert Walker <robert.walker@arm.com> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Tested-by: Leo Yan <leo.yan@linaro.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1543839526-30348-1-git-send-email-robert.walker@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/build')
-rw-r--r--tools/build/feature/test-libopencsd.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/build/feature/test-libopencsd.c b/tools/build/feature/test-libopencsd.c
index 5ff1246e6194..d68eb4fb40cc 100644
--- a/tools/build/feature/test-libopencsd.c
+++ b/tools/build/feature/test-libopencsd.c
@@ -1,6 +1,14 @@
// SPDX-License-Identifier: GPL-2.0
#include <opencsd/c_api/opencsd_c_api.h>
+/*
+ * Check OpenCSD library version is sufficient to provide required features
+ */
+#define OCSD_MIN_VER ((0 << 16) | (10 << 8) | (0))
+#if !defined(OCSD_VER_NUM) || (OCSD_VER_NUM < OCSD_MIN_VER)
+#error "OpenCSD >= 0.10.0 is required"
+#endif
+
int main(void)
{
(void)ocsd_get_version();