Make the .mdebug line parser support EE-GCC (PS2) (#362)

objdiff-core/tests/arch_mips.rs

@@ -102,3 +102,28 @@ fn mwcc_dwarf1_line_numbers_multiple_functions() {
         );
     }
 }
+
+#[test]
+#[cfg(feature = "mips")]
+fn ee_gcc_mdebug_line_numbers() {
+    let diff_config = diff::DiffObjConfig::default();
+    let obj = obj::read::parse(
+        include_object!("data/mips/ee_gcc_lines_example.o"),
+        &diff_config,
+        diff::DiffSide::Base,
+    )
+    .unwrap();
+
+    let text_section = obj.sections.iter().find(|s| s.name == ".text").unwrap();
+    assert_eq!(text_section.line_info.get(&0), Some(&1));
+    assert_eq!(text_section.line_info.get(&12), Some(&2));
+    assert_eq!(text_section.line_info.get(&20), Some(&4));
+    assert_eq!(text_section.line_info.get(&40), Some(&5));
+    assert_eq!(text_section.line_info.get(&64), Some(&7));
+    assert_eq!(text_section.line_info.get(&80), Some(&8));
+    assert_eq!(text_section.line_info.get(&88), Some(&10));
+    assert_eq!(text_section.line_info.get(&96), Some(&11));
+    assert_eq!(text_section.line_info.get(&104), Some(&12));
+    assert_eq!(text_section.line_info.get(&144), Some(&13));
+    assert_eq!(text_section.line_info.len(), 10);
+}