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//===-- scudo_tls_linux.inc -------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// Scudo thread local structure fastpath functions implementation for platforms
/// supporting thread_local.
///
//===----------------------------------------------------------------------===//
#ifndef SCUDO_TLS_LINUX_H_
#define SCUDO_TLS_LINUX_H_
#ifndef SCUDO_TLS_H_
# error "This file must be included inside scudo_tls.h."
#endif // SCUDO_TLS_H_
#if SANITIZER_LINUX && !SANITIZER_ANDROID
enum ThreadState : u8 {
ThreadNotInitialized = 0,
ThreadInitialized,
ThreadTornDown,
};
__attribute__((tls_model("initial-exec")))
extern THREADLOCAL ThreadState ScudoThreadState;
__attribute__((tls_model("initial-exec")))
extern THREADLOCAL ScudoThreadContext ThreadLocalContext;
ALWAYS_INLINE void initThreadMaybe() {
if (LIKELY(ScudoThreadState != ThreadNotInitialized))
return;
initThread();
}
ALWAYS_INLINE ScudoThreadContext *getThreadContextAndLock() {
if (UNLIKELY(ScudoThreadState == ThreadTornDown))
return nullptr;
return &ThreadLocalContext;
}
#endif // SANITIZER_LINUX && !SANITIZER_ANDROID
#endif // SCUDO_TLS_LINUX_H_
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