Subject:
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Re: legOS - Does it work for you?
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 1 Jan 1999 15:12:17 GMT
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Viewed:
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4199 times
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Bobby Boone writes:
> Rick Kimball wrote:
>
> > I'm really excited about the legOS. I got egcs that
> > came with RedHat 5.1 setup as a cross compiler. I
> > grabbed the source to legOS and started playing...
> > In fact, that is all I have done for the last couple
> > of days.
> >
> > I've had good success running the demo programs.
> > That is, as long as I don't toggle the run button
> > more than 5 or 6 times. After that the RCX would
> > just flake out. I spent some time debugging it and
> > it looks to me like the task management stuff
> > is corrupting memory. I added my own mm_grim_reaper
> > routine to the main loop that basically does an
> > mm_init.
> >
> > I also recompiled legOS with all the task management
> > turned off. I then hacked the light-sensor program
> > so that it would still work without the execi functions.
> > This works great and doesn't corrupt any memory.
> > However, the real power of legOS is the preemptive
> > multi-tasking.
> >
> > Am I the only one having this problem? Many of the
> > library stuff that comes with egcs would not compile
> > so I just did a "make -k" so that it would finish.
> > This produced all the desired executables needed
> > by the legOS makefile.
> >
> > -rick
> >
> > -- add this to mm.c --
> >
> > // my grim reaper hack to re init the memory heap...
> > void mm_grim_reaper() {
> > mm_update_first_free(&mm_start);
> > }
> >
> > // insert the above function somewhere in your kmain.c
> > // after the rc=main
>
> I am also running Redhat 5.1, and installed the binutils and gcc sources
> via the 5.1 cd. When I tried to
> follow the instructions for cross compiling I got:
Here is what I did...
1. Build and install binutils (GNU )
1a. ./configure --prefix=/usr/local --target=h8300-hitachi-hms
1b. make
1c. make install
2. Extract egcs from RedHat 5.1 source cd (Disk 2)
2a. rpm -ihv egcs-1.0.2-8.src.rpm
2b. gzip -dc egc1-1.0.2.tar.gz | tar xvf -
3. Build gcc
3a. ./configure --prefix=/usr/local --target=h8300-hitachi-hms
3b. make -k LANGUAGES=c
3c. make -k install
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Message is in Reply To:
 | | Re: legOS - Does it work for you?
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| (...) I am also running Redhat 5.1, and installed the binutils and gcc sources via the 5.1 cd. When I tried to follow the instructions for cross compiling I got: [root@razoo gcc-2.7.2.3]# ./configure --prefix=../binutils...4/binutils --targ This (...) (28 years ago, 1-Jan-99, to lugnet.robotics)
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