From 20e877c9ecda267b75bbb64d619abea4ea6864e9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?D=C3=A1vid=20Balatoni?=
 <40299962+dbalatoni13@users.noreply.github.com>
Date: Mon, 2 Jun 2025 00:43:13 +0200
Subject: [PATCH] Some ProDG improvements (#101)

---
 src/util/split.rs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/util/split.rs b/src/util/split.rs
index a831e9e..e3ea084 100644
--- a/src/util/split.rs
+++ b/src/util/split.rs
@@ -26,7 +26,25 @@ fn split_ctors_dtors(obj: &mut ObjInfo, start: SectionAddress, end: SectionAddre
     let mut current_address = start;
     let mut referenced_symbols = vec![];
 
+    // ProDG ctor list can start with -1
+    if matches!(read_u32(ctors_section, current_address.address), Some(0xFFFFFFFF)) {
+        current_address += 4;
+    }
+
     while current_address < end {
+        // ProDG hack when the end address is not known
+        if matches!(read_u32(ctors_section, current_address.address), Some(0)) {
+            while current_address < end {
+                ensure!(
+                    matches!(read_u32(ctors_section, current_address.address), Some(0)),
+                    "{} data detected at {:#010X} after null pointer",
+                    ctors_section.name,
+                    current_address,
+                );
+                current_address += 4;
+            }
+            break;
+        }
         let function_addr = read_address(obj, ctors_section, current_address.address)?;
         log::debug!("Found {} entry: {:#010X}", ctors_section.name, function_addr);