49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
//===-- scudo_tls_linux.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 thread local structure fastpath functions implementation for platforms
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/// supporting thread_local.
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///
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//===----------------------------------------------------------------------===//
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#ifndef SCUDO_TLS_LINUX_H_
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#define SCUDO_TLS_LINUX_H_
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#ifndef SCUDO_TLS_H_
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# error "This file must be included inside scudo_tls.h."
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#endif // SCUDO_TLS_H_
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#if SANITIZER_LINUX && !SANITIZER_ANDROID
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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 ScudoThreadContext ThreadLocalContext;
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ALWAYS_INLINE void initThreadMaybe() {
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if (LIKELY(ScudoThreadState != ThreadNotInitialized))
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return;
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initThread();
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}
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ALWAYS_INLINE ScudoThreadContext *getThreadContextAndLock() {
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if (UNLIKELY(ScudoThreadState == ThreadTornDown))
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return nullptr;
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return &ThreadLocalContext;
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}
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#endif // SANITIZER_LINUX && !SANITIZER_ANDROID
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#endif // SCUDO_TLS_LINUX_H_
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