68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
//===- StringTable.h --------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEBUGINFO_GSYM_STRINGTABLE_H
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#define LLVM_DEBUGINFO_GSYM_STRINGTABLE_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/DebugInfo/GSYM/ExtractRanges.h"
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#include "llvm/DebugInfo/GSYM/GsymTypes.h"
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#include <stdint.h>
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namespace llvm {
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namespace gsym {
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/// String tables in GSYM files are required to start with an empty
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/// string at offset zero. Strings must be UTF8 NULL terminated strings.
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struct StringTable {
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StringRef Data;
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StringTable() = default;
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StringTable(StringRef D) : Data(D) {}
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StringRef operator[](size_t Offset) const { return getString(Offset); }
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StringRef getString(gsym_strp_t Offset) const {
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if (Offset < Data.size()) {
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auto End = Data.find('\0', Offset);
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return Data.substr(Offset, End - Offset);
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}
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return StringRef();
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}
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void clear() { Data = StringRef(); }
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};
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inline void dump(raw_ostream &OS, const StringTable &S,
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uint8_t StringOffsetSize) {
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OS << "String table:\n";
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gsym_strp_t Offset = 0;
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const size_t Size = S.Data.size();
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while (Offset < Size) {
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StringRef Str = S.getString(Offset);
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switch (StringOffsetSize) {
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case 1:
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OS << HEX8(Offset);
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break;
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case 2:
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OS << HEX16(Offset);
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break;
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case 4:
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OS << HEX32(Offset);
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break;
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case 8:
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OS << HEX64(Offset);
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break;
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default:
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OS << HEX64(Offset);
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}
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OS << ": \"" << Str << "\"\n";
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Offset += Str.size() + 1;
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}
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}
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} // namespace gsym
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} // namespace llvm
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#endif // LLVM_DEBUGINFO_GSYM_STRINGTABLE_H
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