Alexis Hetu | dd662d2 | 2018-08-09 17:24:51 -0400 | [diff] [blame] | 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 */ |
Nicolas Capens | 59eb5dd | 2020-11-03 14:20:12 -0500 | [diff] [blame] | 16 | #if defined(NDEBUG) |
| 17 | #define LLVM_ENABLE_ABI_BREAKING_CHECKS 0 |
| 18 | #else |
Alexis Hetu | dd662d2 | 2018-08-09 17:24:51 -0400 | [diff] [blame] | 19 | #define LLVM_ENABLE_ABI_BREAKING_CHECKS 1 |
Nicolas Capens | 59eb5dd | 2020-11-03 14:20:12 -0500 | [diff] [blame] | 20 | #endif |
Alexis Hetu | dd662d2 | 2018-08-09 17:24:51 -0400 | [diff] [blame] | 21 | |
| 22 | /* Define to disable the link-time checking of mismatch for |
| 23 | LLVM_ENABLE_ABI_BREAKING_CHECKS */ |
| 24 | #define LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING 1 |
| 25 | #if !LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING |
| 26 | |
| 27 | // ABI_BREAKING_CHECKS protection: provides link-time failure when clients build |
| 28 | // mismatch with LLVM |
| 29 | #if defined(_MSC_VER) |
| 30 | // Use pragma with MSVC |
| 31 | #define LLVM_XSTR(s) LLVM_STR(s) |
| 32 | #define LLVM_STR(s) #s |
| 33 | #pragma detect_mismatch("LLVM_ENABLE_ABI_BREAKING_CHECKS", LLVM_XSTR(LLVM_ENABLE_ABI_BREAKING_CHECKS)) |
| 34 | #undef LLVM_XSTR |
| 35 | #undef LLVM_STR |
| 36 | #elif defined(_WIN32) || defined(__CYGWIN__) // Win32 w/o #pragma detect_mismatch |
| 37 | // FIXME: Implement checks without weak. |
| 38 | #elif defined(__cplusplus) |
| 39 | namespace llvm { |
| 40 | #if LLVM_ENABLE_ABI_BREAKING_CHECKS |
| 41 | extern int EnableABIBreakingChecks; |
| 42 | __attribute__((weak, visibility ("hidden"))) int *VerifyEnableABIBreakingChecks = &EnableABIBreakingChecks; |
| 43 | #else |
| 44 | extern int DisableABIBreakingChecks; |
| 45 | __attribute__((weak, visibility ("hidden"))) int *VerifyDisableABIBreakingChecks = &DisableABIBreakingChecks; |
| 46 | #endif |
| 47 | } |
| 48 | #endif // _MSC_VER |
| 49 | |
| 50 | #endif // LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING |
| 51 | |
| 52 | #endif |