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18323ddda9
The back-deployed concurrency libraries and older Swift runtimes are not compatible, so turn off runtime exclusivity checking when running on older systems. Fixes rdar://84274148.
30 lines
1.2 KiB
C++
30 lines
1.2 KiB
C++
//===--- Exclusivity.cpp - Exclusivity tracking ---------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// This implements the runtime support for dynamically tracking exclusivity.
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//
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//===----------------------------------------------------------------------===//
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#include <cinttypes>
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#include "swift/Runtime/Exclusivity.h"
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using namespace swift;
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void swift::swift_task_enterThreadLocalContextBackDeploy(char *state) { }
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void swift::swift_task_exitThreadLocalContextBackDeploy(char *state) { }
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// Forcibly disable exclusivity checking, because the back-deployed concurrency
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// library cannot communicate with older Swift runtimes effectively.
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__attribute__((constructor)) static void disableExclusivityChecking() {
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_swift_disableExclusivityChecking = true;
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}
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