| /*===------- llvm/Config/abi-breaking.h - llvm configuration -------*- C -*-===*/ |
| /* */ |
| /* Part of the LLVM Project, under the Apache License v2.0 with LLVM */ |
| /* Exceptions. */ |
| /* See https://llvm.org/LICENSE.txt for license information. */ |
| /* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception */ |
| /* */ |
| /*===----------------------------------------------------------------------===*/ |
| |
| /* This file controls the C++ ABI break introduced in LLVM public header. */ |
| |
| #ifndef LLVM_ABI_BREAKING_CHECKS_H |
| #define LLVM_ABI_BREAKING_CHECKS_H |
| |
| /* Define to enable checks that alter the LLVM C++ ABI */ |
| #define LLVM_ENABLE_ABI_BREAKING_CHECKS 0 |
| |
| /* Define to enable reverse iteration of unordered llvm containers */ |
| #define LLVM_ENABLE_REVERSE_ITERATION 0 |
| |
| /* Allow selectively disabling link-time mismatch checking so that header-only |
| ADT content from LLVM can be used without linking libSupport. */ |
| #if !defined(LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING) || !LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING |
| |
| // ABI_BREAKING_CHECKS protection: provides link-time failure when clients build |
| // mismatch with LLVM |
| #if defined(_MSC_VER) |
| // Use pragma with MSVC |
| #define LLVM_XSTR(s) LLVM_STR(s) |
| #define LLVM_STR(s) #s |
| #pragma detect_mismatch("LLVM_ENABLE_ABI_BREAKING_CHECKS", LLVM_XSTR(LLVM_ENABLE_ABI_BREAKING_CHECKS)) |
| #undef LLVM_XSTR |
| #undef LLVM_STR |
| #elif defined(_WIN32) || defined(__CYGWIN__) // Win32 w/o #pragma detect_mismatch |
| // FIXME: Implement checks without weak. |
| #elif defined(__cplusplus) |
| #if !(defined(_AIX) && defined(__GNUC__) && !defined(__clang__)) |
| #define LLVM_HIDDEN_VISIBILITY __attribute__ ((visibility("hidden"))) |
| #else |
| // GCC on AIX does not support visibility attributes. Symbols are not |
| // exported by default on AIX. |
| #define LLVM_HIDDEN_VISIBILITY |
| #endif |
| namespace llvm { |
| #if LLVM_ENABLE_ABI_BREAKING_CHECKS |
| extern int EnableABIBreakingChecks; |
| LLVM_HIDDEN_VISIBILITY |
| __attribute__((weak)) int *VerifyEnableABIBreakingChecks = |
| &EnableABIBreakingChecks; |
| #else |
| extern int DisableABIBreakingChecks; |
| LLVM_HIDDEN_VISIBILITY |
| __attribute__((weak)) int *VerifyDisableABIBreakingChecks = |
| &DisableABIBreakingChecks; |
| #endif |
| } |
| #undef LLVM_HIDDEN_VISIBILITY |
| #endif // _MSC_VER |
| |
| #endif // LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING |
| |
| #endif |
