47 lines
1.2 KiB
PHP
47 lines
1.2 KiB
PHP
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//===-- scudo_tsd_exclusive.inc ---------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// Scudo exclusive TSD fastpath functions implementation.
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///
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//===----------------------------------------------------------------------===//
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#ifndef SCUDO_TSD_H_
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# error "This file must be included inside scudo_tsd.h."
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#endif // SCUDO_TSD_H_
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#if SCUDO_TSD_EXCLUSIVE
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enum ThreadState : u8 {
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ThreadNotInitialized = 0,
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ThreadInitialized,
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ThreadTornDown,
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};
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__attribute__((tls_model("initial-exec")))
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extern THREADLOCAL ThreadState ScudoThreadState;
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__attribute__((tls_model("initial-exec")))
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extern THREADLOCAL ScudoTSD TSD;
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extern ScudoTSD FallbackTSD;
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ALWAYS_INLINE void initThreadMaybe(bool MinimalInit = false) {
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if (LIKELY(ScudoThreadState != ThreadNotInitialized))
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return;
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initThread(MinimalInit);
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}
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ALWAYS_INLINE ScudoTSD *getTSDAndLock() {
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if (UNLIKELY(ScudoThreadState != ThreadInitialized)) {
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FallbackTSD.lock();
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return &FallbackTSD;
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}
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return &TSD;
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}
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#endif // SCUDO_TSD_EXCLUSIVE
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