• maarten van damme (44/44) Oct 21 2011 I'm trying to create a proxy dll( a dll forwarding all it's functions to

maarten van damme <maartenvd1994 gmail.com> writes:

I'm trying to create a proxy dll( a dll forwarding all it's functions to
another dll)
I renamed the dll I want to replace (let's call him foo) to oldfoo.dll
then I created the import library oldfoo.lib and created oldfoo.def with as
syntax

"
LIBRARY         "oldfoo"

IMPORTS
internalbar=oldfoo.bar
...
"

and then I created a D file called foo.d with a valid dllmain and then an
extern(c) block with in it the following syntax:

"
void * internalbar();
...

//////////////////////////////////
void *bar(){asm{naked;jmp internalbar;}}
...
"

and when I compile it I get the following error:

"
C:\Users\maarten\Desktop\workingdir>dmd foo.d oldfoo.def oldfoo.lib
OPTLINK (R) for Win32  Release 8.00.12
Copyright (C) Digital Mars 1989-2010  All rights reserved.
http://www.digitalmars.com/ctg/optlink.html
OPTLINK : Warning 148: USE16/USE32 Mismatch : DGROUP
C:\D\dmd2\windows\bin\..\lib\SNN.lib(dllstart)
 Error 83: Illegal frame on start address
OPTLINK : Warning 174: 32-bit Segments Inappropriate for 16-bit Segmented
output

foo.obj(foo)
 Error 35: Cannot Reach TARGET from FRAME at Relative 0002BH  from
 Segment _TEXT
 FRAME  = Frame of Group FLAT 0000
 TARGET = External Symbol
_D4core3sys7windows3dll18dll_process_detachFT4core3sys
7windows7windows6HANDLEbZv 00070H
 FIXUPP Type = 32-bit Conditional JMP
--- errorlevel 2
"

Can someone point me a bit in the right direction? I've tried this in the
past but then I understood nearly nothing about .def files an .lib files.
Now that I know a bit more I wanted to take up the challenge again.