File: tsan_preinit.cpp

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//===-- tsan_preinit.cpp --------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file is a part of ThreadSanitizer.
//
// Call __tsan_init at the very early stage of process startup.
//===----------------------------------------------------------------------===//

#include "sanitizer_common/sanitizer_internal_defs.h"
#include "tsan_interface.h"

#if SANITIZER_CAN_USE_PREINIT_ARRAY

// The symbol is called __local_tsan_preinit, because it's not intended to be
// exported.
// This code linked into the main executable when -fsanitize=thread is in
// the link flags. It can only use exported interface functions.
__attribute__((section(".preinit_array"), used))
void (*__local_tsan_preinit)(void) = __tsan_init;

#endif