lldb/source/Plugins/SymbolFile/DWARF/DWARFDefines.cpp

   1 //===-- DWARFDefines.cpp --------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "DWARFDefines.h"
  10 #include "lldb/Utility/ConstString.h"
  11 #include <cstdio>
  12 #include <cstring>
  13 #include <string>
  14
  15 namespace lldb_private::plugin {
  16 namespace dwarf {
  17
  18 llvm::StringRef DW_TAG_value_to_name(dw_tag_t tag) {
  19   static constexpr llvm::StringLiteral s_unknown_tag_name("<unknown DW_TAG>");
  20   if (llvm::StringRef tag_name = llvm::dwarf::TagString(tag); !tag_name.empty())
  21     return tag_name;
  22
  23   return s_unknown_tag_name;
  24 }
  25
  26 const char *DW_OP_value_to_name(uint32_t val) {
  27   static char invalid[100];
  28   llvm::StringRef llvmstr = llvm::dwarf::OperationEncodingString(val);
  29   if (llvmstr.empty()) {
  30     snprintf(invalid, sizeof(invalid), "Unknown DW_OP constant: 0x%x", val);
  31     return invalid;
  32   }
  33   return llvmstr.data();
  34 }
  35
  36 } // namespace dwarf
  37 } // namespace lldb_private::plugin