If you want to have a configure option to control whether or not your JTAG 
driver gets built and your lib/DLL gets linked then you need to modify the 
configure.ac<http://configure.ac> file at the root of the OpenOCD tree.
Then you can use that option in the relevant Makefile.am<http://Makefile.am> to 
control things.
Looking at existing options in these files should guide you.
Hope this helps.



On Jay <[email protected]>, 10 Jul 2018 1:53 am wrote:

Greetings Tommy,

Yes, I've looked at the link you provided earlier.  I do have 1) headers, 2) 
.lib, and 3) .dll  files.

I guess my question is what (and how) Makefiles, configure files I'd have to 
edit to link with this library.

For example, I see that in order to link with LIBFTDI, there are quite a few 
places it is mentioned in order to derive "LIBFTDI_LIB" variable in the 
makefile. I'm assuming that I will have to do something similar, no?

after running ./configure, I see below,
../config.status:S["LIBFTDI_LIBS"]="-LC:/msys64/mingw64/bin 
-LC:/msys64/mingw64/lib -lftdi1 -lusb-1.0"

src/jtag/drivers/Makefile.am
if USE_LIBFTDI
 43 %C%_libocdjtagdrivers_la_CPPFLAGS += $(LIBFTDI_CFLAGS)
 44 %C%_libocdjtagdrivers_la_LIBADD += $(LIBFTDI_LIBS)
 45 endif


similarly, I'd probably have below, and somehow figure out how to setup 
"USE_LIBEUD", no?
if USE_LIBEUD
%C%_libocdjtagdrivers_la_CPPFLAGS += $(LIBEUD_CFLAGS)
%C%_libocdjtagdrivers_la_LIBADD += $(LIBEUD_LIBS)
endif


Thanks,
Jay
-----------------------
Love All, Serve All
-----------------------


On Mon, Jul 9, 2018 at 5:31 PM Tommy Murphy 
<[email protected]<mailto:[email protected]>> wrote:
For example...

https://msdn.microsoft.com/en-us/library/9yd93633.aspx

On Mon, Jul 9, 2018 at 5:30 PM Tommy Murphy 
<[email protected]<mailto:[email protected]>> wrote:
Your question is not that clear to me.
You seem to be asking "how can I use/link to a DLL?".
Is that correct?
Usually you'll need an import library to link to unless you're using completely 
dynamic loading and resolution of API entry points.
But ultimately this is not really an OpenOCD specific question/issue as far as 
I can see and is covered adequately elsewhere if you do a little 
searching/research.

Hope this helps.

On Jay <[email protected]<mailto:[email protected]>>, 10 Jul 
2018 12:21 am wrote:

Greetings,

I'm trying to add support for a new JTAG/SWD interface adapter called EUD 
(embedded usb debugger) for openOCD. I'm adding a source file (eud.c)  in 
"src/jtag/drivers/" folder.  I'm using proprietary "headers" and supplied DLL 
file to link with my source.

Here is the topology I have.

src/jtag/drivers/
    eud.c   //my source file
    eud/    //folder containing headers and DLL
        *.h
        eud.dll

I'm looking for if what kind of makefile changes I'd need to compile and link 
with this DLL file. Can someone please help me or point me to any example 
makefile(s) setup?

Thanks,
Jay
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