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      1 //===-- ELFAttributes.cpp - ELF Attributes --------------------------------===//
      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 "llvm/Support/ELFAttributes.h"
     10 #include "llvm/ADT/StringRef.h"
     11 
     12 using namespace llvm;
     13 
     14 StringRef ELFAttrs::attrTypeAsString(unsigned attr, TagNameMap tagNameMap,
     15                                      bool hasTagPrefix) {
     16   auto tagNameIt = find_if(
     17       tagNameMap, [attr](const TagNameItem item) { return item.attr == attr; });
     18   if (tagNameIt == tagNameMap.end())
     19     return "";
     20   StringRef tagName = tagNameIt->tagName;
     21   return hasTagPrefix ? tagName : tagName.drop_front(4);
     22 }
     23 
     24 Optional<unsigned> ELFAttrs::attrTypeFromString(StringRef tag,
     25                                                 TagNameMap tagNameMap) {
     26   bool hasTagPrefix = tag.startswith("Tag_");
     27   auto tagNameIt =
     28       find_if(tagNameMap, [tag, hasTagPrefix](const TagNameItem item) {
     29         return item.tagName.drop_front(hasTagPrefix ? 0 : 4) == tag;
     30       });
     31   if (tagNameIt == tagNameMap.end())
     32     return None;
     33   return tagNameIt->attr;
     34 }
     35