1*68d75effSDimitry Andric //===-- tsan_preinit.cpp --------------------------------------------------===//
2*68d75effSDimitry Andric //
3*68d75effSDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*68d75effSDimitry Andric // See https://llvm.org/LICENSE.txt for license information.
5*68d75effSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*68d75effSDimitry Andric //
7*68d75effSDimitry Andric //===----------------------------------------------------------------------===//
8*68d75effSDimitry Andric //
9*68d75effSDimitry Andric // This file is a part of ThreadSanitizer.
10*68d75effSDimitry Andric //
11*68d75effSDimitry Andric // Call __tsan_init at the very early stage of process startup.
12*68d75effSDimitry Andric //===----------------------------------------------------------------------===//
13*68d75effSDimitry Andric 
14*68d75effSDimitry Andric #include "sanitizer_common/sanitizer_internal_defs.h"
15*68d75effSDimitry Andric #include "tsan_interface.h"
16*68d75effSDimitry Andric 
17*68d75effSDimitry Andric #if SANITIZER_CAN_USE_PREINIT_ARRAY
18*68d75effSDimitry Andric 
19*68d75effSDimitry Andric // The symbol is called __local_tsan_preinit, because it's not intended to be
20*68d75effSDimitry Andric // exported.
21*68d75effSDimitry Andric // This code linked into the main executable when -fsanitize=thread is in
22*68d75effSDimitry Andric // the link flags. It can only use exported interface functions.
23*68d75effSDimitry Andric __attribute__((section(".preinit_array"), used))
24*68d75effSDimitry Andric void (*__local_tsan_preinit)(void) = __tsan_init;
25*68d75effSDimitry Andric 
26*68d75effSDimitry Andric #endif
27