From fec3b61c3066857009de9bcdc08b3194ceae639e Mon Sep 17 00:00:00 2001
From: Alan Terranova <terranova@terranova-macbookpro.roam.corp.google.com>
Date: Fri, 5 Jan 2018 17:19:53 -0800
Subject: [PATCH] Use 32-bit Objective-C data pointer for 32-bit Mach-O files.

Class-dump sometimes fails to process 32-bit files because the data cursor unconditionally aligns its Objective-C data pointer to a 64-bit boundary.
---
 Source/CDObjectiveC2Processor.m | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Source/CDObjectiveC2Processor.m b/Source/CDObjectiveC2Processor.m
index a374eacd..f40a9e40 100644
--- a/Source/CDObjectiveC2Processor.m
+++ b/Source/CDObjectiveC2Processor.m
@@ -221,7 +221,11 @@ - (CDOCClass *)loadClassAtAddress:(uint64_t)address;
 
     uint64_t value        = [cursor readPtr];
     class.isSwiftClass    = (value & 0x1) != 0;
-    objc2Class.data       = value & ~7;
+    if ([self.machOFile uses64BitABI]) {
+      objc2Class.data = value & ~7;
+    } else {
+      objc2Class.data = value & ~3;
+    }
 
     objc2Class.reserved1  = [cursor readPtr];
     objc2Class.reserved2  = [cursor readPtr];