| 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 | Range&: tagNameMap, P: [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(N: 4); |
| 22 | } |
| 23 | |
| 24 | std::optional<unsigned> ELFAttrs::attrTypeFromString(StringRef tag, |
| 25 | TagNameMap tagNameMap) { |
| 26 | bool hasTagPrefix = tag.starts_with(Prefix: "Tag_"); |
| 27 | auto tagNameIt = |
| 28 | find_if(Range&: tagNameMap, P: [tag, hasTagPrefix](const TagNameItem item) { |
| 29 | return item.tagName.drop_front(N: hasTagPrefix ? 0 : 4) == tag; |
| 30 | }); |
| 31 | if (tagNameIt == tagNameMap.end()) |
| 32 | return std::nullopt; |
| 33 | return tagNameIt->attr; |
| 34 | } |
| 35 |