1/*===------- llvm/Config/abi-breaking.h - llvm configuration -------*- C -*-===*/ 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/* This file controls the C++ ABI break introduced in LLVM public header. */ 11 12#ifndef LLVM_ABI_BREAKING_CHECKS_H 13#define LLVM_ABI_BREAKING_CHECKS_H 14 15/* Define to enable checks that alter the LLVM C++ ABI */ 16#define LLVM_ENABLE_ABI_BREAKING_CHECKS 1 17 18/* Define to disable the link-time checking of mismatch for 19 LLVM_ENABLE_ABI_BREAKING_CHECKS */ 20#define LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING 1 21#if !LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING 22 23// ABI_BREAKING_CHECKS protection: provides link-time failure when clients build 24// mismatch with LLVM 25#if defined(_MSC_VER) 26// Use pragma with MSVC 27#define LLVM_XSTR(s) LLVM_STR(s) 28#define LLVM_STR(s) #s 29#pragma detect_mismatch("LLVM_ENABLE_ABI_BREAKING_CHECKS", LLVM_XSTR(LLVM_ENABLE_ABI_BREAKING_CHECKS)) 30#undef LLVM_XSTR 31#undef LLVM_STR 32#elif defined(_WIN32) || defined(__CYGWIN__) // Win32 w/o #pragma detect_mismatch 33// FIXME: Implement checks without weak. 34#elif defined(__cplusplus) 35namespace llvm { 36#if LLVM_ENABLE_ABI_BREAKING_CHECKS 37extern int EnableABIBreakingChecks; 38__attribute__((weak, visibility ("hidden"))) int *VerifyEnableABIBreakingChecks = &EnableABIBreakingChecks; 39#else 40extern int DisableABIBreakingChecks; 41__attribute__((weak, visibility ("hidden"))) int *VerifyDisableABIBreakingChecks = &DisableABIBreakingChecks; 42#endif 43} 44#endif // _MSC_VER 45 46#endif // LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING 47 48#endif 49