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50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
//===--- Dwarf.h - DWARF constants ------------------------------*- C++ -*-===//
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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 - 2015 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 http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines several temporary Swift-specific DWARF constants.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_BASIC_DWARF_H
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#define SWIFT_BASIC_DWARF_H
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#include "llvm/Support/Dwarf.h"
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namespace swift {
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//===--- BEGIN "TO BE FIXED IN A SWIFT BRANCH OF LLVM" ---===//
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//
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// DWARF constants.
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//
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// The first unused language value in DWARF v5 is DW_LANG_Ocaml+1 =
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// 0x1c. We can't use it, because LLVM asserts that there are no
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// languages >DW_LANG_Python=0x14. Wouldn't it would be much more
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// appropriate to use a constant in DW_LANG_lo_user..DW_LANG_hi_user
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// anyway, you may ask? Well, CompileUnit::constructTypeDIE() will
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// always use a DW_FORM_data1, which is too small for that range! And
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// by fixing that in LLVM we would hint at developing a new language.
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// So instead, let's hijack a language with a very low potential for
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// accidental conflicts for now.
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//
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typedef enum {
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DW_LANG_Swift = 0xf,
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DW_LANG_ObjC = llvm::dwarf::DW_LANG_ObjC, // For symmetry.
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// Reuse some existing tag so the verifier doesn't complain.
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DW_TAG_meta_type = llvm::dwarf::DW_TAG_restrict_type
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} dwarf;
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//
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//===--------- END "TO BE FIXED IN A SWIFT BRANCH OF LLVM" --------===//
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}
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#endif
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