[okl4-developer] adding a file in the image using weaver.xml

[Geoffrey Lee]

On Fri, Oct 31, 2008 at 11:04:39AM -0700, Gabi Voiculescu wrote:
> Turns out it worked once I rearanged the code in SConscript.
> 
> If you could tell me what variable to use to specify the path to the okl4 directory (instead of /proj/merge/trunk in my case) it would help me on portability.
> 

Gabi - you can use the hash character (#) to specify the path of
the top-level source.  For an example of how you can use this
please take a look at the SConscript of libc in libs/c.

> 
> Thanks,
> Gabi Voiculescu

	-gl

> 
> Import("*")
> obj = env.KengeProgram("fileex_example",
>                        weaver = env.WeaverIguanaProgram(),
>                        LIBS=[ "c", "l4", "ll", "l4e", "iguana", "mutex", "fs"])
> 
> #list of files to import in the image
> video = env.Command("/proj/merge/trunk/video/h263", "/proj/merge/trunk/video/converted/h263.3gp", Copy('$TARGET', '$SOURCE') ) # FIXME: find out how to specify root folder for project instead of /proj/merge/trunk
> text = env.Command("/proj/merge/trunk/video/text", "/proj/merge/trunk/video/converted/text.txt", Copy('$TARGET', '$SOURCE') )
> 
> weaver = env.WeaverFile()
> env.set_weaver(video,weaver,None)
> env.weaver(obj).add_memsection(video)
> 
> weaver = env.WeaverFile()
> env.set_weaver(text,weaver,None)
> env.weaver(obj).add_memsection(text)
> 
> 
> #this is needed even if I don't see it's purpose
> env.expect_test_data = [("File Test Example works!", None)]
> 
> Return("obj")
> 
> 
> 
> 
> 
> --- On Fri, 10/31/08, Gabi Voiculescu <boy3dfx2 at yahoo.com> wrote:
> From: Gabi Voiculescu <boy3dfx2 at yahoo.com>
> Subject: Re: [okl4-developer] adding a file in the image using weaver.xml
> To: developer at okl4.org
> Date: Friday, October 31, 2008, 5:41 PM
> 
> Hello.
> 
> I have taken your example source, adapted it to compile and made a new iguana example.
> 
> If I try the following SConstruct with commenting the entries for video (or text
> respectively) everything works. File paths are ok. I get the respective file added to my
> image and in my example I can open it (as long as I add a prefix of 16 bytes to the file specifying the file size, before I initiate the buid, otherwise <fs/fs.h>: okl4_open() won't work).
> 
> My problem is the following SConstruct only allows me to add one file.  
> 
> Can you tell me what is the cause /if there is a way to fix this impediment of being able to add only one file to weaver.xml?
> 
> What part of the SConstruct code is responsible for creating the .linkaddress file? 
> 
> 
> Thanks,
> Gabi Voiculescu
> 
> The build output:
> ...............
> [LINK] build2/iguana/bin/vserial
> 
> GNU ld version 2.15
> 
> Copyright 2002 Free Software Foundation, Inc.
> 
> This program is free software; you may redistribute it under the terms of
> 
> the GNU General Public License.  This program has absolutely no warranty.
> 
> [CC  ] build2/iguana/fileex_example/object/src/main.o
> 
> [VIRT] video/h263.linkaddress
> 
> Copy("video/h263", "/proj/profile/h263.3gp")
> 
> [VIRT] video/text.linkaddress
> 
> scons: *** [video/text.linkaddress] /proj/merge/trunk/video/text.linkaddress: No such file or directory
> 
> scons: building terminated because of errors.
> 
> make: *** [fileex] Error 2
> 
> My SConstruct
> 
> Import("*")
> obj = env.KengeProgram("fileex_example",
>                        weaver = env.WeaverIguanaProgram(),
>                        LIBS=[ "c", "l4", "ll", "l4e", "mutex", "fs"])
> 
> 
> #copy video file into okl4 directory and create object 'video' -gabi
> video = env.Command("/proj/merge/trunk/video/h263", "/proj/profile/h263.3gp",  Copy('$TARGET', '$SOURCE') ) # FIXME: find out how to say root folder for the project instead of /proj/merge/trunk...for portability
> 
> #create another memsection including a text file...so we can wiev file inners
> text  = env.Command("/proj/merge/trunk/video/text",
>  "/proj/merge/trunk/text.txt", Copy('$TARGET', '$SOURCE') )
> 
> weaver = env.WeaverFile()
> 
> #weaver = env.WeaverIguanaProgram(),
> env.set_weaver(video, weaver, None)
> env.set_weaver(text, weaver, None)
> 
> #add memsection entry into my app
> env.weaver(obj).add_memsection(video)
> env.weaver(obj).add_memsection(text)
> 
> Return("obj")
> 
> 
> 
> 
> 
> --- On Tue, 10/28/08, Malcolm Purvis <malcolmp at ok-labs.com> wrote:
> From: Malcolm Purvis <malcolmp at ok-labs.com>
> Subject: Re: [okl4-developer] adding a file in the image using weaver.xml
> To: "Gabi Voiculescu" <boy3dfx2 at yahoo.com>
> Cc: developer at okl4.org
> Date: Tuesday, October 28, 2008, 1:16 AM
> 
> >>>>> "Gabi" == Gabi Voiculescu
> <boy3dfx2 at yahoo.com> writes:
> 
> Gabi> I want to be able to add a (a video)
>  file in my
> Gabi> binary image, in okl4 (not oklinux).
> 
> Hi Gabi,
> 
> What you want is to have the following XML:
> 
> <program name="prog" file="/path/to/program" >
>     <memsection name="video" file="/path/to/video" />
> </program>
> 
> This will put the video file in the image and your program can find the
> location of the file with the code:
> 
>          env_memsection_base(iguana_getenv("VIDEO"));
> 
> As for making the build system generate this automatically, in 2.1.1 the
> sequence would be something like:
> 
> ---------------------------------------------------------------------------
> video = env.Command() # Generate video file.
> weaver = env.WeaverFile()
> env.set_weaver(video, weaver, None)
> 
> prog = env.KengeProgram()
> env.weaver(prog).add_memsection(video)
> ---------------------------------------------------------------------------
> 
> In 3.0, the build system support for
>  generating XML data was redesigned
> so the sequence would now be something like:
> 
> ---------------------------------------------------------------------------
> video = env.Command() # Generate video file.
> 
> prog = env.KengeProgram()
> cell.add_program(prog)
> cell.add_file(prog, video)
> ---------------------------------------------------------------------------
> 
> Malcolm
> 
> -- 
>                     Malcolm Purvis <malcolmp at ok-labs.com>
> 
> 
> 
> 
> 
> 
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