contrib/libs/llvm12/lib/Support/ELFAttributes.cpp


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

//===-- ELFAttributes.cpp - ELF Attributes --------------------------------===// 
// 
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 
// See https://llvm.org/LICENSE.txt for license information. 
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 
// 
//===----------------------------------------------------------------------===// 
 
#include "llvm/Support/ELFAttributes.h" 
#include "llvm/ADT/StringRef.h" 
 
using namespace llvm; 
 
StringRef ELFAttrs::attrTypeAsString(unsigned attr, TagNameMap tagNameMap, 
                                     bool hasTagPrefix) { 
  auto tagNameIt = find_if( 
      tagNameMap, [attr](const TagNameItem item) { return item.attr == attr; }); 
  if (tagNameIt == tagNameMap.end()) 
    return ""; 
  StringRef tagName = tagNameIt->tagName; 
  return hasTagPrefix ? tagName : tagName.drop_front(4); 
} 
 
Optional<unsigned> ELFAttrs::attrTypeFromString(StringRef tag, 
                                                TagNameMap tagNameMap) { 
  bool hasTagPrefix = tag.startswith("Tag_"); 
  auto tagNameIt = 
      find_if(tagNameMap, [tag, hasTagPrefix](const TagNameItem item) { 
        return item.tagName.drop_front(hasTagPrefix ? 0 : 4) == tag; 
      }); 
  if (tagNameIt == tagNameMap.end()) 
    return None; 
  return tagNameIt->attr; 
}