1*09bfd043SDimitry Andric /* $FreeBSD$ */ 2*09bfd043SDimitry Andric /*===------- llvm/Config/abi-breaking.h - llvm configuration -------*- C -*-===*/ 3*09bfd043SDimitry Andric /* */ 4*09bfd043SDimitry Andric /* The LLVM Compiler Infrastructure */ 5*09bfd043SDimitry Andric /* */ 6*09bfd043SDimitry Andric /* This file is distributed under the University of Illinois Open Source */ 7*09bfd043SDimitry Andric /* License. See LICENSE.TXT for details. */ 8*09bfd043SDimitry Andric /* */ 9*09bfd043SDimitry Andric /*===----------------------------------------------------------------------===*/ 10*09bfd043SDimitry Andric 11*09bfd043SDimitry Andric /* This file controls the C++ ABI break introduced in LLVM public header. */ 12*09bfd043SDimitry Andric 13*09bfd043SDimitry Andric #ifndef LLVM_ABI_BREAKING_CHECKS_H 14*09bfd043SDimitry Andric #define LLVM_ABI_BREAKING_CHECKS_H 15*09bfd043SDimitry Andric 16*09bfd043SDimitry Andric /* Define to enable checks that alter the LLVM C++ ABI */ 17*09bfd043SDimitry Andric #define LLVM_ENABLE_ABI_BREAKING_CHECKS 1 18*09bfd043SDimitry Andric 19*09bfd043SDimitry Andric /* Define to disable the link-time checking of mismatch for 20*09bfd043SDimitry Andric LLVM_ENABLE_ABI_BREAKING_CHECKS */ 21*09bfd043SDimitry Andric #define LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING 0 22*09bfd043SDimitry Andric #if !LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING 23*09bfd043SDimitry Andric 24*09bfd043SDimitry Andric // ABI_BREAKING_CHECKS protection: provides link-time failure when clients build 25*09bfd043SDimitry Andric // mismatch with LLVM 26*09bfd043SDimitry Andric #if defined(_MSC_VER) 27*09bfd043SDimitry Andric // Use pragma with MSVC 28*09bfd043SDimitry Andric #define LLVM_XSTR(s) LLVM_STR(s) 29*09bfd043SDimitry Andric #define LLVM_STR(s) #s 30*09bfd043SDimitry Andric #pragma detect_mismatch("LLVM_ENABLE_ABI_BREAKING_CHECKS", LLVM_XSTR(LLVM_ENABLE_ABI_BREAKING_CHECKS)) 31*09bfd043SDimitry Andric #undef LLVM_XSTR 32*09bfd043SDimitry Andric #undef LLVM_STR 33*09bfd043SDimitry Andric #elif defined(_WIN32) || defined(__CYGWIN__) // Win32 w/o #pragma detect_mismatch 34*09bfd043SDimitry Andric // FIXME: Implement checks without weak. 35*09bfd043SDimitry Andric #elif defined(__cplusplus) 36*09bfd043SDimitry Andric namespace llvm { 37*09bfd043SDimitry Andric #if LLVM_ENABLE_ABI_BREAKING_CHECKS 38*09bfd043SDimitry Andric extern int EnableABIBreakingChecks; 39*09bfd043SDimitry Andric __attribute__((weak, visibility ("hidden"))) int *VerifyEnableABIBreakingChecks = &EnableABIBreakingChecks; 40*09bfd043SDimitry Andric #else 41*09bfd043SDimitry Andric extern int DisableABIBreakingChecks; 42*09bfd043SDimitry Andric __attribute__((weak, visibility ("hidden"))) int *VerifyDisableABIBreakingChecks = &DisableABIBreakingChecks; 43*09bfd043SDimitry Andric #endif 44*09bfd043SDimitry Andric } 45*09bfd043SDimitry Andric #endif // _MSC_VER 46*09bfd043SDimitry Andric 47*09bfd043SDimitry Andric #endif // LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING 48*09bfd043SDimitry Andric 49*09bfd043SDimitry Andric #endif 50