Rtems Rebuild Remake Question

Thu Mar 7 16:32:45 UTC 2002

Bill Butler wrote:
> 
> Joel,
> 
> If you notice I am using the mcf5206Elite EXACTLY as it comes in patch
> 2-15-2002. I just mentioned Fiddes not to take credit for his stuff..
> but this is failing on the mcf5206elite BSP. The example that I showed
> was only the Elite stuff. Also I am using makefile.am and automake for
> both. Automake seems to work find.. I just am missing the piece that
> takes the product of the Makefile.am (makefile.in) and moves it to the
> build directory :(.

Makefile.in is in the source tree and stays there.  when you configure,
makefiles are generated in the build tree.  

> BTW: I am trying to talk my company into sending me to the class :)

I hope a few more people sign up.  We do not have enough signed
up right now. :(

> Bill Butler
> AIPCom Inc
> 972-644-2328 x16
> bbill at tnex.com
> 
> 
> -----Original Message-----
> From: Joel Sherrill [mailto:joel.sherrill at oarcorp.com]
> Sent: Thursday, March 07, 2002 6:30 AM
> To: Bill Butler
> Cc: 'Ralf Corsepius'; 'Ian Caddy'; 'RTEMS Users'
> Subject: Re: Rtems Rebuild Remake Question
> 
> Bill Butler wrote:
> >
> > Ha!.. you just thought I went away!
> >
> > Well I tried what you guys suggest and it works real neat except for
> one
> > thing.. it does not work! (disclaimer: for me)
> >
> > I'm sure the BSP I'm using is not updated so  I need some help of
> where
> > to look to fix it or someway to convert a Makefile.in to a Makefile
> for
> > now.
> >
> > Here is what I'm doing.
> >
> > I have built 2 BSP for the m68k one I modified from Fiddles (sbc5307)
> > and one from RTEMS (mcf5206elite).
> 
> I suspect that what you are running into is that David Fiddes' BSP is
> based upon an old RTEMS version which is before we began using automake.
> You will need to switch to Makefile.am's in order to merge into the
> current BSP.  I suggest using the Makefile.am's from the mcf5206elite
> and modifying them to match the files in the sbc5307.  bootstrap is
> trying to generate Makefile.am's from Makefile.in's at development
> time.  configure generates Makefile's from Makefile.in's at build time.
> 
> [NOTE: This is actually covered much better in the class than in the
> written documentation.]
> 
> > Specific problem is once I modify the Makefile.am file and run
> bootstrap
> > it DOES create the Makefile.in file. I run "../configure ..." and then
> > "make all" but neither the configure or the make copies over the
> updated
> > makefile to the build directories.
> >
> > Here is a simple example. Note: I'm under cygwin so the directory
> > structure is a little different that suggested in Docs.
> >
> >
> >>/opt/tools/rtems-ss-20020215/c/src/lib/libbsp/m68k/mcf5206elite/start
> >
> > $ touch Makefile.am
> >
> > $ ls -l  (makefile.am newer than makefile.in)
> >
> > $ ../../../../../../bootstrap
> >
> > $ ls -l (makefile.in newer than makefile.am which is newer than
> Makefile
> > in build directory)
> >
> > $cd  /opt/tools/build
> >
> > >> /opt/tools/build
> >
> > $ ../rtems-ss-20020215/configure --target=m68k-rtems --enable
> > rtemsbsp="mcf5206elite sbc5307" --prefix=/opt/m68k_rtems
> >
> > $cd
> >
> /opt/tools/build/m68k-rtems/c/mcf5206elite/lib/libbsp/m68k/mcf5206elite/
> > start
> >
> >
> >>/opt/tools/build/m68k-rtems/c/mcf5206elite/lib/libbsp/m68k/mcf5206elit
> > e/start
> >
> > $ls -l (same old Makefile)
> >
> > $cd  /opt/tools/build
> >
> > $ make all
> >
> > $cd
> >
> /opt/tools/build/m68k-rtems/c/mcf5206elite/lib/libbsp/m68k/mcf5206elite/
> > start
> >
> > $ ls -l (same old makefile)...
> >
> > $format c: (good thing this is cygwin)
> >
> > I guess my question is what tells configure to copy files over when
> they
> > are out of date or missing? I'm guessing it something I configure in
> the
> > BSP directory so I will go nose around there.
> >
> > Thanks for you help.
> >
> > Bill Butler
> > AIPCom Inc
> > 972-644-2328 x16
> > bbill at tnex.com
> >
> >
> > -----Original Message-----
> > From: Ralf Corsepius [mailto:corsepiu at faw.uni-ulm.de]
> > Sent: Monday, February 25, 2002 10:52 PM
> > To: Ian Caddy
> > Cc: Bill Butler; RTEMS Users
> > Subject: Re: Rtems Rebuild Remake Question
> >
> > Am Die, 2002-02-26 um 03.18 schrieb Ian Caddy:
> > > Hi Bill,
> > >
> > > The trick here is to use a script file called bootstrap.
> > >
> > > When you change the makefile of any part of your BSP, you will need
> to
> > run
> > > the bootstrap command from the root source directory.
> > >
> > > In our system this is:
> > >
> > > /rtems-4.5.0
> > >
> > > now from this directory run:
> > >
> > > ./bootstrap
> > >
> > > This will walk its way through the RTEMS tree rebuilding your
> > makefile.am to
> > > makefile.in
> > Try adding --enable-maintainer-mode to your configure-options, then
> all
> > this is supposed to happen automatically.
> > Eg. if having edited your <BSP>/Makefile.am (Adding/deleting files)
> > cd build/<...>/<BSP>
> > make
> > will rebuild Makefile.in etc.
> >
> > [There exist some broken BSPs where this doesn't work.]
> >
> > Furthermore, it is sufficient to run bootstrap from the directory
> which
> > contains the configure.ac/in which is responsibile for the file you
> have
> > edited.
> > Eg.
> > [Editing [...]/<BSP>/driver/Makefile.am
> > cd [...]/<BSP>
> > <rtems-rootdir>/bootstrap
> >
> > > Once this has completed, (actually, once it goes past our BSP, we
> stop
> > the
> > > process), you will then need to do another configure in your base
> > build
> > > directory.
> > Try adding --enable-maintainer-mode.
> >
> > Then in most cases, running "make" is sufficient. If it doesn't work,
> > (General exceptions are BSPs containing "tools" - A known general bug
> in
> > RTEMS configury - and adding directories - A known general limitation
> of
> > the auto*tools), running bootstrap from the directory with the
> > configure.ac related to the edited Makefile.am should be safe.
> >
> > Ralf
> 
> --
> Joel Sherrill, Ph.D.             Director of Research & Development
> joel at OARcorp.com                 On-Line Applications Research
> Ask me about RTEMS: a free RTOS  Huntsville AL 35805
>    Support Available             (256) 722-9985

-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel at OARcorp.com                 On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
Support Available                (256) 722-9985