serialize part of the debug info item

androscalpel/src/apk.rs

@@ -35,11 +35,8 @@ impl Apk {
             let class = self.get_class_from_dex_file(class, &dex)?;
             self.classes.insert(class.descriptor.clone(), class);
         }
-        self.not_referenced_strings.extend(
-            dex.get_not_resolved_strings()?
-                .into_iter()
-                .map(|string| DexString(string)),
-        );
+        self.not_referenced_strings
+            .extend(dex.get_not_resolved_strings()?.into_iter().map(DexString));
         Ok(())
     }
 
@@ -2203,9 +2200,13 @@ impl Apk {
             None
         };
         let debug_info = if let Some(debug_info) = debug_info {
-            debug_info.serialize_to_vec()?
+            let mut cursor = std::io::Cursor::new(vec![]);
+            debug_info
+                .bytecode
+                .serialize(&mut cursor, DbgBytecode::EndSequence)?;
+            (debug_info.line_start.0, cursor.into_inner())
         } else {
-            vec![]
+            (0, vec![])
         };
         let mut labels: HashMap<usize, String> = HashMap::new();
         let mut tries = HashMap::new();

androscalpel/src/code.rs

@@ -33,7 +33,7 @@ pub struct Code {
     // TODO: implement
     /// The debug info
     #[pyo3(get)]
-    pub debug_info: Vec<u8>, // Should be stripped, copying like this just don't work
+    pub debug_info: (u32, Vec<u8>), // Should be stripped, copying like this just don't work
     /// The names of the parameters if given
     #[pyo3(get)]
     pub parameter_names: Option<Vec<Option<DexString>>>,
@@ -81,7 +81,7 @@ impl Code {
             outs_size,
             insns,
             parameter_names,
-            debug_info: vec![],
+            debug_info: (0, vec![]),
         }
     }
 

androscalpel/src/dex_writer.rs

@@ -1308,13 +1308,32 @@ impl DexWriter {
             try_.handler_off += handlers.size_field().size() as u16;
         }
 
-        let debug_info_off = if code.debug_info.is_empty() {
+        let debug_info_off = if code.debug_info.1.is_empty() && code.parameter_names.is_none() {
             0
         } else {
             let debug_info_off = self
                 .section_manager
                 .get_aligned_size(Section::DebugInfoItem);
-            let item = DebugInfoItem::deserialize_from_slice(&code.debug_info)?;
+            let mut cursor = Cursor::new(code.debug_info.1);
+            let mut item = DebugInfoItem {
+                line_start: Uleb128(code.debug_info.0),
+                parameter_names: vec![],
+                bytecode: Vec::<DbgBytecode>::deserialize(&mut cursor, DbgBytecode::EndSequence)?,
+            };
+            if let Some(parameter_names) = code.parameter_names {
+                for name in &parameter_names {
+                    if let Some(name) = name {
+                        item.parameter_names
+                            .push(Uleb128p1(*self.strings.get(name).ok_or(anyhow!(
+                                "String {} (name of param of {}) not found",
+                                name.__str__(),
+                                method_id.__repr__()
+                            ))? as u32));
+                    } else {
+                        item.parameter_names.push(NO_INDEX);
+                    }
+                }
+            }
             self.section_manager
                 .add_elt(Section::DebugInfoItem, Some(item.size()));
             self.debug_info_items.push(item);
@@ -2600,7 +2619,6 @@ impl DexWriter {
             set.serialize(&mut buffer)?;
         }
         // CodeItem section
-        println!("Actual code offset: 0x{:x}", buffer.position());
         self.check_section_offset(&buffer, Section::CodeItem);
         for code_item in &self.code_items {
             Self::fix_section_alignement(&mut buffer, Section::CodeItem)?;

androscalpel_serializer/src/file_reader.rs

@@ -15,7 +15,7 @@ pub struct DexFileReader<'a> {
     header: HeaderItem,
     string_ids: Vec<StringIdItem>,
     /// If `string_was_resolved[string_idx]` is true, the string was resolved at some point.
-    /// This alows us to get the strings that are in a dex file but not used by its
+    /// This allows us to get the strings that are in a dex file but not used by its
     /// classes. (Yes, they are some, looking at you `~~D8{"backend":"dex","compilation-mode":
     /// "release","has-checksums":false,"min-api":24,"version":"8.2.42"}`)
     string_was_resolved: Vec<AtomicBool>,