fix annotation linking

androscalpel/src/dex_writer.rs

@@ -2328,6 +2328,24 @@ impl DexWriter {
         }
     }
 
+    /// Link the offsets of annotations_directory_item in class_def_items.
+    ///
+    /// # Warning
+    ///
+    /// Linking can only occur once all sections are entirelly generated.
+    fn link_annotation_directories(&mut self) {
+        debug!("Link the annotations_directory_item entries in class_def_items");
+        for class_def in self.class_defs_list.iter_mut() {
+            // prelink value is set to offset in the section + 1 (to distinguish with 0)
+            if class_def.annotations_off != 0 {
+                class_def.annotations_off += self
+                    .section_manager
+                    .get_offset(Section::AnnotationsDirectoryItem)
+                    - 1;
+            }
+        }
+    }
+
     /// Link the offsets of static_values_off in class_def_items.
     ///
     /// # Warning
@@ -2464,6 +2482,7 @@ impl DexWriter {
         self.link_call_site_ids();
         self.link_type_list_occurences()?;
         self.link_class_data_occurences();
+        self.link_annotation_directories();
         self.link_static_values();
         self.link_debug_info();
         self.link_annotations();

androscalpel_serializer/src/file_reader.rs

@@ -8,6 +8,7 @@ use crate::{
 use log::{error, info, warn};
 use std::io::{Cursor, Seek, SeekFrom};
 
+#[derive(Debug)]
 pub struct DexFileReader<'a> {
     data: &'a [u8],
     header: HeaderItem,