[llvm] [llvm-dwp] Replace MCStreamer with direct ELF writer for zero-copy output (PR #192112)

[David Blaikie via llvm-commits]

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@@ -28,6 +33,115 @@ enum Dwarf64StrOffsetsPromotion {
   Always,   ///< Always emit .debug_str_offsets talbes as DWARF64 for testing.
 };
 
+/// Section identifiers for DWP output.
+enum DWPSectionId : unsigned {
+  DS_Info,
+  DS_Types,
+  DS_Abbrev,
+  DS_Line,
+  DS_Loc,
+  DS_Loclists,
+  DS_Rnglists,
+  DS_Macro,
+  DS_Str,
+  DS_StrOffsets,
+  DS_CUIndex,
+  DS_TUIndex,
+  DS_NumSections
+};
+
+/// Direct ELF writer for DWP output, bypassing MCStreamer.
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dwblaikie wrote:

ah, sure - sorry, forgot about that pending feedback when I pressed the merge and submit button

https://github.com/llvm/llvm-project/pull/192112