Use xcoff debug section names

Author: Kai Luo

src/symbolize/gimli.rs

@@ -115,8 +115,17 @@ impl<'data> Context<'data> {
         sup: Option<Object<'data>>,
     ) -> Option<Context<'data>> {
         let mut sections = gimli::Dwarf::load(|id| -> Result<_, ()> {
-            let data = object.section(stash, id.name()).unwrap_or(&[]);
-            Ok(EndianSlice::new(data, Endian))
+            if cfg!(not(target_os = "aix")) {
+                let data = object.section(stash, id.name()).unwrap_or(&[]);
+                Ok(EndianSlice::new(data, Endian))
+            } else {
+                if let Some(name) = id.xcoff_name() {
+                    let data = object.section(stash, name).unwrap_or(&[]);
+                    Ok(EndianSlice::new(data, Endian))
+                } else {
+                    Ok(EndianSlice::new(&[], Endian))
+                }
+            }
         })
         .ok()?;