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author | Robert Walker <robert.walker@arm.com> | 2018-12-03 12:18:46 +0000 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-17 14:56:18 -0300 |
commit | a7ee4d625ede4f62146ff3bb2aeee074e4cf5fa1 (patch) | |
tree | 8a483cf55c7b793667eb1bdccd4de53456fcc564 /tools/build/feature | |
parent | 00879763fcf21f4b32d63d2241c877f8c1df950e (diff) | |
download | linux-stable-a7ee4d625ede4f62146ff3bb2aeee074e4cf5fa1.tar.gz linux-stable-a7ee4d625ede4f62146ff3bb2aeee074e4cf5fa1.tar.bz2 linux-stable-a7ee4d625ede4f62146ff3bb2aeee074e4cf5fa1.zip |
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/feature')
-rw-r--r-- | tools/build/feature/test-libopencsd.c | 8 |
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(); |