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1dc86fc731
This commit introduces a script for testing java symbols. The test records java program, inject samples with JIT samples, check specific JIT symbols in the report, the test will pass only when these two symbols are detected. Suggested-by: Ian Rogers <irogers@google.com> Signed-off-by: Leo Yan <leo.yan@linaro.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220925025835.70364-3-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
76 lines
1.9 KiB
Bash
Executable File
76 lines
1.9 KiB
Bash
Executable File
#!/bin/bash
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# Test java symbol
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# SPDX-License-Identifier: GPL-2.0
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# Leo Yan <leo.yan@linaro.org>, 2022
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# skip if there's no jshell
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if ! [ -x "$(command -v jshell)" ]; then
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echo "skip: no jshell, install JDK"
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exit 2
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fi
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PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
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PERF_INJ_DATA=$(mktemp /tmp/__perf_test.perf.data.inj.XXXXX)
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cleanup_files()
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{
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echo "Cleaning up files..."
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rm -f ${PERF_DATA}
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rm -f ${PERF_INJ_DATA}
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}
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trap cleanup_files exit term int
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if [ -e "$PWD/tools/perf/libperf-jvmti.so" ]; then
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LIBJVMTI=$PWD/tools/perf/libperf-jvmti.so
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elif [ -e "$PWD/libperf-jvmti.so" ]; then
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LIBJVMTI=$PWD/libperf-jvmti.so
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elif [ -e "$PREFIX/lib64/libperf-jvmti.so" ]; then
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LIBJVMTI=$PREFIX/lib64/libperf-jvmti.so
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elif [ -e "$PREFIX/lib/libperf-jvmti.so" ]; then
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LIBJVMTI=$PREFIX/lib/libperf-jvmti.so
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elif [ -e "/usr/lib/linux-tools-$(uname -a | awk '{ print $3 }' | sed -r 's/-generic//')/libperf-jvmti.so" ]; then
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LIBJVMTI=/usr/lib/linux-tools-$(uname -a | awk '{ print $3 }' | sed -r 's/-generic//')/libperf-jvmti.so
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else
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echo "Fail to find libperf-jvmti.so"
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# JVMTI is a build option, skip the test if fail to find lib
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exit 2
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fi
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cat <<EOF | perf record -k 1 -o $PERF_DATA jshell -s -J-agentpath:$LIBJVMTI
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int fib(int x) {
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return x > 1 ? fib(x - 2) + fib(x - 1) : 1;
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}
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int q = 0;
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for (int i = 0; i < 10; i++)
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q += fib(i);
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System.out.println(q);
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EOF
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if [ $? -ne 0 ]; then
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echo "Fail to record for java program"
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exit 1
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fi
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if ! perf inject -i $PERF_DATA -o $PERF_INJ_DATA -j; then
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echo "Fail to inject samples"
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exit 1
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fi
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# Below is an example of the instruction samples reporting:
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# 8.18% jshell jitted-50116-29.so [.] Interpreter
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# 0.75% Thread-1 jitted-83602-1670.so [.] jdk.internal.jimage.BasicImageReader.getString(int)
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perf report --stdio -i ${PERF_INJ_DATA} 2>&1 | \
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egrep " +[0-9]+\.[0-9]+% .* (Interpreter|jdk\.internal).*" > /dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "Fail to find java symbols"
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exit 1
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fi
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exit 0
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