| //===-- asan_preinit.cc ---------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file is a part of AddressSanitizer, an address sanity checker. |
| // |
| // Call __asan_init at the very early stage of process startup. |
| // On Linux we use .preinit_array section (unless PIC macro is defined). |
| //===----------------------------------------------------------------------===// |
| #include "asan_internal.h" |
| |
| #if ASAN_USE_PREINIT_ARRAY && !defined(PIC) |
| // On Linux, we force __asan_init to be called before anyone else |
| // by placing it into .preinit_array section. |
| // FIXME: do we have anything like this on Mac? |
| __attribute__((section(".preinit_array"), used)) |
| void (*__asan_preinit)(void) =__asan_init; |
| #elif SANITIZER_WINDOWS && defined(_DLL) |
| // On Windows, when using dynamic CRT (/MD), we can put a pointer |
| // to __asan_init into the global list of C initializers. |
| // See crt0dat.c in the CRT sources for the details. |
| #pragma section(".CRT$XIB", long, read) // NOLINT |
| __declspec(allocate(".CRT$XIB")) void (*__asan_preinit)() = __asan_init; |
| #endif |
