[llvm] [LLVM][DebugInfo] Refactor some code for easier sharing. (PR #82153)

[David Blaikie via llvm-commits]

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@@ -552,32 +552,50 @@ DWARFDebugNames::NameIndex::extractAbbrev(uint64_t *Offset) {
   return Abbrev(Code, dwarf::Tag(Tag), AbbrevOffset, std::move(*AttrEncOr));
 }
 
+void llvm::findDebugNamesOffsets(
+    DWARFDebugNames::DWARFDebugNamesOffsets &Offsets, uint64_t HdrSize,
+    dwarf::DwarfFormat Format, const DWARFDebugNames::Header &Hdr) {
+  uint32_t DwarfSize = (Format == llvm::dwarf::DwarfFormat::DWARF64) ? 8 : 4;
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dwblaikie wrote:

This should use `dwarf::getDwarfOffsetByteSize`

https://github.com/llvm/llvm-project/pull/82153