48 lines
1.6 KiB
JavaScript
48 lines
1.6 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* Do a basic test to see if native frames are being collected for stackwalking. This
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* test is fairly naive, as it does not attempt to check that these are valid symbols,
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* only that some kind of stack walking is happening. It does this by making sure at
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* least two native frames are collected.
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*/
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add_task(async () => {
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const entries = 10000;
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const interval = 1;
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const threads = [];
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const features = ["stackwalk"];
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await Services.profiler.StartProfiler(entries, interval, features, threads);
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const sampleIndex = await captureAtLeastOneJsSample();
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const profile = await stopNowAndGetProfile();
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const [thread] = profile.threads;
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const { samples } = thread;
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const inflatedStackFrames = getInflatedStackLocations(
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thread,
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samples.data[sampleIndex]
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);
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const nativeStack = /^0x[0-9a-f]+$/;
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expectStackToContain(
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inflatedStackFrames,
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[
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"(root)",
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// There are probably more native stacks here.
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nativeStack,
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nativeStack,
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// Since this is an xpcshell test we know that JavaScript will run:
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"js::RunScript",
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// There are probably more native stacks here.
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nativeStack,
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nativeStack,
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],
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"Expected native stacks to be interleaved between some frame labels. There should" +
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"be more than one native stack if stack walking is working correctly. There " +
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"is no attempt here to determine if the memory addresses point to the correct " +
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"symbols"
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);
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});
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