From: Leo Yan <leo.yan@linaro.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
Will Deacon <will@kernel.org>, John Garry <john.garry@huawei.com>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
Ian Rogers <irogers@google.com>,
Alexandre Truong <alexandre.truong@arm.com>,
Masami Hiramatsu <mhiramat@kernel.org>,
He Zhe <zhe.he@windriver.com>,
Thomas Richter <tmricht@linux.ibm.com>,
Sumanth Korikkar <sumanthk@linux.ibm.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Cc: Leo Yan <leo.yan@linaro.org>
Subject: [PATCH v1 0/2] perf arm64: Support SDT
Date: Wed, 23 Dec 2020 14:39:03 +0800 [thread overview]
Message-ID: <20201223063905.25784-1-leo.yan@linaro.org> (raw)
This patch is to enable SDT on Arm64.
Since Arm64 SDT marker in ELF file is different from other archs,
especially for using stack pointer (sp) to retrieve data for local
variables, patch 01 is used to fixup the arguments for this special
case. Patch 02 is to add argument support for Arm64 SDT.
This patch set has been verified on Arm64/x86_64 platforms with a
testing program usdt_test [1]. The program run the SDT interfaces
one by one for DTRACE_PROBE, DTRACE_PROBE1, ..., DTRACE_PROBE12, so
it tries to verify probe with different count of arguments (the
arguments count is 0 to 12).
The testing flow and result are shown as below:
# perf buildid-cache --add /root/test/usdt_test
# perf probe sdt_usdt:test_probe
# perf probe sdt_usdt:test_probe_param1
# perf probe sdt_usdt:test_probe_param1x
# perf probe sdt_usdt:test_probe_param2
# perf probe sdt_usdt:test_probe_param2x
# perf probe sdt_usdt:test_probe_param3
# perf probe sdt_usdt:test_probe_param3x
# perf probe sdt_usdt:test_probe_param4
# perf probe sdt_usdt:test_probe_param4x
# perf probe sdt_usdt:test_probe_param5
# perf probe sdt_usdt:test_probe_param5x
# perf probe sdt_usdt:test_probe_param6
# perf probe sdt_usdt:test_probe_param6x
# perf probe sdt_usdt:test_probe_param7
# perf probe sdt_usdt:test_probe_param7x
# perf probe sdt_usdt:test_probe_param8
# perf probe sdt_usdt:test_probe_param8x
# perf probe sdt_usdt:test_probe_param9
# perf probe sdt_usdt:test_probe_param9x
# perf probe sdt_usdt:test_probe_param10
# perf probe sdt_usdt:test_probe_param10x
# perf probe sdt_usdt:test_probe_param11
# perf probe sdt_usdt:test_probe_param11x
# perf probe sdt_usdt:test_probe_param12
# perf probe sdt_usdt:test_probe_param12x
# perf record \
-e sdt_usdt:test_probe_param1 -e sdt_usdt:test_probe_param1x \
-e sdt_usdt:test_probe_param2 -e sdt_usdt:test_probe_param2x \
-e sdt_usdt:test_probe_param3 -e sdt_usdt:test_probe_param3x \
-e sdt_usdt:test_probe_param4 -e sdt_usdt:test_probe_param4x \
-e sdt_usdt:test_probe_param5 -e sdt_usdt:test_probe_param5x \
-e sdt_usdt:test_probe_param6 -e sdt_usdt:test_probe_param6x \
-e sdt_usdt:test_probe_param7 -e sdt_usdt:test_probe_param7x \
-e sdt_usdt:test_probe_param8 -e sdt_usdt:test_probe_param8x \
-e sdt_usdt:test_probe_param9 -e sdt_usdt:test_probe_param9x \
-e sdt_usdt:test_probe_param10 -e sdt_usdt:test_probe_param10x \
-e sdt_usdt:test_probe_param11 -e sdt_usdt:test_probe_param11x \
-e sdt_usdt:test_probe_param12 -e sdt_usdt:test_probe_param12x \
-e sdt_usdt:test_probe -aR sleep 5
# ./usdt_test => Execute in another terminal
# perf script
usdt_test 7999 [003] 80493.418276: sdt_usdt:test_probe: (aaaab0d80714)
usdt_test 7999 [003] 80493.418352: sdt_usdt:test_probe_param1: (aaaab0d80728) arg1=1
usdt_test 7999 [003] 80493.418379: sdt_usdt:test_probe_param2: (aaaab0d80744) arg1=1 arg2=2
usdt_test 7999 [003] 80493.418405: sdt_usdt:test_probe_param3: (aaaab0d80764) arg1=1 arg2=2 arg3=3
usdt_test 7999 [003] 80493.418432: sdt_usdt:test_probe_param4: (aaaab0d80788) arg1=1 arg2=2 arg3=3 arg4=4
usdt_test 7999 [003] 80493.418459: sdt_usdt:test_probe_param5: (aaaab0d807b0) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5
usdt_test 7999 [003] 80493.418487: sdt_usdt:test_probe_param6: (aaaab0d807dc) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5 arg6=6
usdt_test 7999 [003] 80493.418516: sdt_usdt:test_probe_param7: (aaaab0d8080c) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5 arg6=6 arg7=7
usdt_test 7999 [003] 80493.418545: sdt_usdt:test_probe_param8: (aaaab0d80840) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5 arg6=6 arg7=7 arg8=8
usdt_test 7999 [003] 80493.418574: sdt_usdt:test_probe_param9: (aaaab0d80874) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5 arg6=6 arg7=7 arg8=8 arg9=9
usdt_test 7999 [003] 80493.418603: sdt_usdt:test_probe_param10: (aaaab0d808a8) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5 arg6=6 arg7=7 arg8=8 arg9=9 arg10=10
usdt_test 7999 [003] 80493.418632: sdt_usdt:test_probe_param11: (aaaab0d808dc) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5 arg6=6 arg7=7 arg8=8 arg9=9 arg10=10 arg11=11
usdt_test 7999 [003] 80493.418662: sdt_usdt:test_probe_param12: (aaaab0d80910) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5 arg6=6 arg7=7 arg8=8 arg9=9 arg10=10 arg11=11 arg12=12
usdt_test 7999 [003] 80493.418687: sdt_usdt:test_probe_param1x: (aaaab0d8092c) arg1=1
usdt_test 7999 [003] 80493.418713: sdt_usdt:test_probe_param2x: (aaaab0d80950) arg1=1 arg2=2
usdt_test 7999 [003] 80493.418739: sdt_usdt:test_probe_param3x: (aaaab0d8097c) arg1=1 arg2=2 arg3=3
usdt_test 7999 [003] 80493.418766: sdt_usdt:test_probe_param4x: (aaaab0d809b0) arg1=1 arg2=2 arg3=3 arg4=4
usdt_test 7999 [003] 80493.418792: sdt_usdt:test_probe_param5x: (aaaab0d809ec) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5
usdt_test 7999 [003] 80493.418820: sdt_usdt:test_probe_param6x: (aaaab0d80a30) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5 arg6=6
usdt_test 7999 [003] 80493.418847: sdt_usdt:test_probe_param7x: (aaaab0d80a7c) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5 arg6=6 arg7=7
usdt_test 7999 [003] 80493.418875: sdt_usdt:test_probe_param8x: (aaaab0d80ad0) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5 arg6=6 arg7=7 arg8=8
usdt_test 7999 [003] 80493.418904: sdt_usdt:test_probe_param9x: (aaaab0d80b2c) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5 arg6=6 arg7=7 arg8=8 arg9=9
usdt_test 7999 [003] 80493.418933: sdt_usdt:test_probe_param10x: (aaaab0d80b90) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5 arg6=6 arg7=7 arg8=8 arg9=9 arg10=10
usdt_test 7999 [003] 80493.418962: sdt_usdt:test_probe_param11x: (aaaab0d80bfc) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5 arg6=6 arg7=7 arg8=8 arg9=9 arg10=10 arg11=11
usdt_test 7999 [003] 80493.418991: sdt_usdt:test_probe_param12x: (aaaab0d80cb0) arg1=1 arg2=2 arg3=3 arg4=4 arg5=5 arg6=6 arg7=7 arg8=8 arg9=281474762776336 arg10=281474762776340 arg11=281474762776344 arg12=281474762776348
[1] https://people.linaro.org/~leo.yan/debug/perf/usdt_test.c
Leo Yan (2):
perf probe: Fixup Arm64 SDT arguments
perf arm64: Add argument support for SDT
tools/perf/arch/arm64/util/perf_regs.c | 94 ++++++++++++++++++++++++++
tools/perf/util/probe-file.c | 32 ++++++++-
2 files changed, 124 insertions(+), 2 deletions(-)
--
2.17.1
next reply other threads:[~2020-12-23 6:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-23 6:39 Leo Yan [this message]
2020-12-23 6:39 ` [PATCH v1 1/2] perf probe: Fixup Arm64 SDT arguments Leo Yan
2020-12-24 13:51 ` Arnaldo Carvalho de Melo
2020-12-25 2:27 ` Leo Yan
2020-12-23 6:39 ` [PATCH v1 2/2] perf arm64: Add argument support for SDT Leo Yan
2020-12-24 8:13 ` [PATCH v1 0/2] perf arm64: Support SDT Masami Hiramatsu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20201223063905.25784-1-leo.yan@linaro.org \
--to=leo.yan@linaro.org \
--cc=acme@kernel.org \
--cc=alexander.shishkin@linux.intel.com \
--cc=alexandre.truong@arm.com \
--cc=irogers@google.com \
--cc=john.garry@huawei.com \
--cc=jolsa@redhat.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=mathieu.poirier@linaro.org \
--cc=mhiramat@kernel.org \
--cc=mingo@redhat.com \
--cc=namhyung@kernel.org \
--cc=peterz@infradead.org \
--cc=sumanthk@linux.ibm.com \
--cc=tmricht@linux.ibm.com \
--cc=will@kernel.org \
--cc=zhe.he@windriver.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®