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6072d9f5df
Windows does not support weak linking. Use an undocumented linker feature to provide a default implementation for report_bad_alloc_error in the case that we are not linking against LLVMSupport.
34 lines
1.4 KiB
C++
34 lines
1.4 KiB
C++
//===--- LLVMSupport.cpp - Swift Language ABI Metadata Support ------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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// ADT uses report_bad_alloc_error to report an error when it can't allocate
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// elements for a data structure. The swift runtime uses ADT without linking
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// against libSupport, so here we provide a stub to make sure we don't fail
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// to link.
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#if defined(swiftCore_EXPORTS)
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namespace llvm {
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#if defined(_WIN32)
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extern void report_bad_alloc_error(const char *Reason, bool GenCrashDiag);
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void _report_bad_alloc_error(const char *Reason, bool GenCrashDiag) {}
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#if defined(_WIN64)
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#pragma comment(linker, "/alternatename:?report_bad_alloc_error@llvm@@YAXPEBD_N@Z=?_report_bad_alloc_error@llvm@@YAXPEBD_N@Z")
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#else
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#pragma comment(linker, "/alternatename:?report_bad_alloc_error@llvm@@YAXPBD_N@Z=?_report_bad_alloc_error@llvm@@YAXPBD_N@Z")
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#endif
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#else
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void __attribute__((__weak__, __visibility__("hidden")))
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report_bad_alloc_error(const char *Reason, bool GenCrashDiag) {}
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#endif
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} // end namespace llvm
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#endif
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