From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- .../tests/xpcshell/test_feature_stackwalking.js | 48 ++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 tools/profiler/tests/xpcshell/test_feature_stackwalking.js (limited to 'tools/profiler/tests/xpcshell/test_feature_stackwalking.js') diff --git a/tools/profiler/tests/xpcshell/test_feature_stackwalking.js b/tools/profiler/tests/xpcshell/test_feature_stackwalking.js new file mode 100644 index 0000000000..aa0bc86547 --- /dev/null +++ b/tools/profiler/tests/xpcshell/test_feature_stackwalking.js @@ -0,0 +1,48 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/** + * Do a basic test to see if native frames are being collected for stackwalking. This + * test is fairly naive, as it does not attempt to check that these are valid symbols, + * only that some kind of stack walking is happening. It does this by making sure at + * least two native frames are collected. + */ +add_task(async () => { + const entries = 10000; + const interval = 1; + const threads = []; + const features = ["stackwalk"]; + + await Services.profiler.StartProfiler(entries, interval, features, threads); + const sampleIndex = await captureAtLeastOneJsSample(); + + const profile = await stopNowAndGetProfile(); + const [thread] = profile.threads; + const { samples } = thread; + + const inflatedStackFrames = getInflatedStackLocations( + thread, + samples.data[sampleIndex] + ); + const nativeStack = /^0x[0-9a-f]+$/; + + expectStackToContain( + inflatedStackFrames, + [ + "(root)", + // There are probably more native stacks here. + nativeStack, + nativeStack, + // Since this is an xpcshell test we know that JavaScript will run: + "js::RunScript", + // There are probably more native stacks here. + nativeStack, + nativeStack, + ], + "Expected native stacks to be interleaved between some frame labels. There should" + + "be more than one native stack if stack walking is working correctly. There " + + "is no attempt here to determine if the memory addresses point to the correct " + + "symbols" + ); +}); -- cgit v1.2.3