From 53164c16a6aff903c0eb4ed278cd2168c107f298 Mon Sep 17 00:00:00 2001
From: Josh Ferrell <josh@vector35.com>
Date: Tue, 20 Aug 2024 11:53:49 -0400
Subject: DWARF: Recurse through DW_AT_abstract_origin when resolving types

---
 rust/examples/dwarf/dwarf_import/src/types.rs | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'rust/examples')

diff --git a/rust/examples/dwarf/dwarf_import/src/types.rs b/rust/examples/dwarf/dwarf_import/src/types.rs
index 35794e36..19b38a90 100644
--- a/rust/examples/dwarf/dwarf_import/src/types.rs
+++ b/rust/examples/dwarf/dwarf_import/src/types.rs
@@ -269,6 +269,29 @@ pub(crate) fn get_type<R: ReaderType>(
                 None
             }
         }
+    } else if let Some(die_reference) = get_attr_die(
+        dwarf,
+        unit,
+        entry,
+        debug_info_builder_context,
+        constants::DW_AT_abstract_origin,
+    ) {
+        // This needs to recurse first (before the early return below) to ensure all sub-types have been parsed
+        match die_reference {
+            DieReference::UnitAndOffset((dwarf, entry_unit, entry_offset)) => {
+                get_type(
+                    dwarf,
+                    entry_unit,
+                    &entry_unit.entry(entry_offset).unwrap(),
+                    debug_info_builder_context,
+                    debug_info_builder,
+                )
+            }
+            DieReference::Err => {
+                warn!("Failed to fetch DIE when getting type through DW_AT_abstract_origin. Debug information may be incomplete.");
+                None
+            }
+        }
     } else {
         // This needs to recurse first (before the early return below) to ensure all sub-types have been parsed
         match resolve_specification(dwarf, unit, entry, debug_info_builder_context) {
-- 
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