From 9bbca712b613058d41f38a7614b3a822192e2b1c Mon Sep 17 00:00:00 2001
From: Peace-Maker <peace-maker@wcfan.de>
Date: Wed, 18 Apr 2018 00:50:26 +0200
Subject: [PATCH] Fix detouring |thiscall| on linux

The this-pointer is always pushed first on the stack.
---
 DynamicHooks/conventions/x86GccThiscall.h | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/DynamicHooks/conventions/x86GccThiscall.h b/DynamicHooks/conventions/x86GccThiscall.h
index d754dbc..a742157 100644
--- a/DynamicHooks/conventions/x86GccThiscall.h
+++ b/DynamicHooks/conventions/x86GccThiscall.h
@@ -40,7 +40,19 @@
 // ============================================================================
 // >> CLASSES
 // ============================================================================
-typedef x86GccCdecl x86GccThiscall;
-
+class x86GccThiscall: public x86GccCdecl
+{
+public:
+	x86GccThiscall(ke::Vector<DataTypeSized_t> &vecArgTypes, DataTypeSized_t returnType, int iAlignment = 4) :
+		x86GccCdecl(vecArgTypes, returnType, iAlignment)
+	{
+		// Always add the |this| pointer.
+		DataTypeSized_t type;
+		type.type = DATA_TYPE_POINTER;
+		type.size = GetDataTypeSize(type, iAlignment);
+		type.custom_register = None;
+		m_vecArgTypes.insert(0, type);
+	}
+};
 
 #endif // _X86_GCC_THISCALL_H
\ No newline at end of file