d13d29ee38
Problem: For several weeks now, CI Sanitizer runs have been logging
leaked RustCompiledRegex objects in the WebWorker process when a worker
is torn down while an off-thread script compile is still in flight.
Cause: compile_off_thread() (introduced in 4a7dc45b3f) parses and
compiles a fetched top-level script on a ThreadPool worker. The pool's a
process-lifetime singleton whose workers are never joined before exit —
and that leads to LSan reporting a false positive during teardown.
Fix: Suppress the false positive via __lsan_default_suppressions().
23 lines
642 B
C
23 lines
642 B
C
/*
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* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Platform.h>
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#ifdef HAS_ADDRESS_SANITIZER
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extern "C" {
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char const* __lsan_default_suppressions();
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char const* __lsan_default_suppressions()
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{
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// Both Skia and Chromium suppress false positive FontConfig leaks
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// https://github.com/google/skia/blob/main/tools/LsanSuppressions.cpp#L20
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// https://chromium.googlesource.com/chromium/src/build/+/master/sanitizers/lsan_suppressions.cc#25
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return "leak:FcPatternObjectInsertElt\n"
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"leak:rust_compile_regex";
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}
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}
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#endif
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