1 //===-- ubsan_init_standalone.cc ------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // Initialization of standalone UBSan runtime.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include "ubsan_platform.h"
15 #if !CAN_SANITIZE_UB
16 # error "UBSan is not supported on this platform!"
17 #endif
18 
19 #include "sanitizer_common/sanitizer_internal_defs.h"
20 #include "ubsan_init.h"
21 
22 #if SANITIZER_CAN_USE_PREINIT_ARRAY
23 __attribute__((section(".preinit_array"), used))
24 void (*__local_ubsan_preinit)(void) = __ubsan::InitAsStandalone;
25 #else
26 // Use a dynamic initializer.
27 class UbsanStandaloneInitializer {
28  public:
UbsanStandaloneInitializer()29   UbsanStandaloneInitializer() {
30     __ubsan::InitAsStandalone();
31   }
32 };
33 static UbsanStandaloneInitializer ubsan_standalone_initializer;
34 #endif  // SANITIZER_CAN_USE_PREINIT_ARRAY
35 
36