50 lines
2.0 KiB
C
50 lines
2.0 KiB
C
/* $FreeBSD$ */
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/*===------- llvm/Config/abi-breaking.h - llvm configuration -------*- C -*-===*/
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/* */
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/* The LLVM Compiler Infrastructure */
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/* */
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/* This file is distributed under the University of Illinois Open Source */
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/* License. See LICENSE.TXT for details. */
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/* */
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/*===----------------------------------------------------------------------===*/
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/* This file controls the C++ ABI break introduced in LLVM public header. */
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#ifndef LLVM_ABI_BREAKING_CHECKS_H
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#define LLVM_ABI_BREAKING_CHECKS_H
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/* Define to enable checks that alter the LLVM C++ ABI */
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#define LLVM_ENABLE_ABI_BREAKING_CHECKS 1
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/* Define to disable the link-time checking of mismatch for
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LLVM_ENABLE_ABI_BREAKING_CHECKS */
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#define LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING 0
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#if !LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING
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// ABI_BREAKING_CHECKS protection: provides link-time failure when clients build
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// mismatch with LLVM
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#if defined(_MSC_VER)
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// Use pragma with MSVC
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#define LLVM_XSTR(s) LLVM_STR(s)
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#define LLVM_STR(s) #s
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#pragma detect_mismatch("LLVM_ENABLE_ABI_BREAKING_CHECKS", LLVM_XSTR(LLVM_ENABLE_ABI_BREAKING_CHECKS))
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#undef LLVM_XSTR
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#undef LLVM_STR
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#elif defined(_WIN32) || defined(__CYGWIN__) // Win32 w/o #pragma detect_mismatch
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// FIXME: Implement checks without weak.
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#elif defined(__cplusplus)
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namespace llvm {
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#if LLVM_ENABLE_ABI_BREAKING_CHECKS
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extern int EnableABIBreakingChecks;
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__attribute__((weak, visibility ("hidden"))) int *VerifyEnableABIBreakingChecks = &EnableABIBreakingChecks;
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#else
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extern int DisableABIBreakingChecks;
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__attribute__((weak, visibility ("hidden"))) int *VerifyDisableABIBreakingChecks = &DisableABIBreakingChecks;
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#endif
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}
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#endif // _MSC_VER
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#endif // LLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING
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#endif
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