From 3fd7b29d64e286d3c9cb7c9de0c725d29873e301 Mon Sep 17 00:00:00 2001
From: GoD-Tony <GoD-Tony@users.noreply.github.com>
Date: Fri, 20 Jan 2017 16:13:31 +0100
Subject: [PATCH] Fix GDC's Linux sigscanning (#576)

The pointer returned by dlopen is not inside the loaded librarys memory region.
---
 tools/gdc-psyfork/gdc.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/gdc-psyfork/gdc.cpp b/tools/gdc-psyfork/gdc.cpp
index 15669e3f..c9ca7bbf 100644
--- a/tools/gdc-psyfork/gdc.cpp
+++ b/tools/gdc-psyfork/gdc.cpp
@@ -4,6 +4,7 @@
 #include <fcntl.h>
 #include <math.h>
 #include <iostream>
+#include <link.h>
 #include "gdc.h"
 #include "GameConfigs.h"
 #include "MemoryUtils.h"
@@ -619,7 +620,10 @@ int checkSigStringL(void *handle, const char* symbol)
 
 		if (real_bytes >= 1)
 		{
-			mu.FindPattern(handle, (char*)real_sig, real_bytes, matches, dummy);
+			// The pointer returned by dlopen is not inside the loaded librarys memory region.
+			struct link_map *dlmap = (struct link_map *)handle;
+			
+			mu.FindPattern((void *)dlmap->l_addr, (char*)real_sig, real_bytes, matches, dummy);
 		}
 	}