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Re: Exact sequences for running cgen
On Fri, Jun 13, 2003 at 11:15:52AM -0700, Doug Evans wrote:
> Michael Meissner writes:
> > Ok, I must be doing something wrong. Could somebody give me an exact
> > walk-through of how to set up the cgen environment. I have tried using the cvs
> > sources, and the snapshot. I have tried building cgen in place, as well as my
> > usual preference of building it in a separate build directory. The last time I
> > asked this question, I was told just run the make in place, but neither the
> > snapshot nor the cvs sources have a Makefile. I have tried using a Red Hat 8.0
> > system, as well as Red Hat 9 (using a 1.4.3 guile compiled since
> >
> > Here is one attempt:
> >
> > $ tar -xvjf snapshot-20030607.tar.bz2
> > $ cd cgen/cgen
> > $ ./configure --target=m32r-unknown-elf
> > $ make desc
> >
> > At this point it runs, but if you look at the tmp-desc.h and tmp-desc.c files,
> > you see that it has not substituted M32R for @ARCH@ and m32r for @arch@ as I
> > would expect. See the attachments for the tmp-desc.h and tmp-desc.c files.
>
> The tmp-desc.[ch] files get subsequently fed through sed to s/@ARCH@/FOO/
> and this happens when you run the generators from the opcodes directory.
> "Final" versions of the generated files are always built from the
> application dir (pedantic: except html since there is no app. dir).
> The rules in cgen/Makefile exist just so one can generate something
> and have a gander at them to see if they look correct.
>
> In normal production work, one configures with --enable-cgen-maint,
> and builds in the opcodes directory and lets the dependencies
> in opcodes/Makefile regenerate the files whenever the .cpu file changes.
> Ditto for sim, sid, etc.
>
> So, exact walk-through:
>
> 1) mkdir obj
> 2) cd obj
> 3) /path/to/binutils+cgen/configure --target=m32r-elf --enable-cgen-maint
> 4) touch /path/to/binutils+cgen/cgen/cpu/m32r.cpu # ensure files get rebuilt
> 5) cd opcodes
> 6) make stamp-m32r
Thanks, thats a help. I guess I missed it on the first read-through of the
manual.
--
Michael Meissner
email: gnu@the-meissners.org
http://www.the-meissners.org