Date: Mon, 6 Sep 1999 11:38:07 +0800 (WST) From: Michael Kennett <mike@laurasia.com.au> To: imp@village.org (Warner Losh) Cc: alpha@freebsd.org Subject: Re: Changes to binutils (--target=alpha-freebsd) Message-ID: <199909060338.LAA94307@laurasia.com.au> In-Reply-To: <199909060221.UAA01375@harmony.village.org> from Warner Losh at "Sep 5, 1999 08:21:02 pm"
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Hello Warner,
> In message <199909040942.RAA26591@laurasia.com.au> Michael Kennett writes:
> : It is the file mkstemp.o. I've added it to the Makefile /usr/src/gnu/usr.bin/
> : cc/cc_drv/Makefile (in the line SRCS).
>
> I've never needed to do this. I think that you must have an old
> system... We went through this several months ago.
>
> I only intend to support cross compiling on a system that is installed
> from a -current system that matches what you are cross compiling.
> That is if you haven't done a make world before trying to make a cross
> world, then all bets are off.
I've cvsup'd the latest sources almost weekly, and not had problems doing a
native (x86) build. I don't have FreeBSD installed on the alpha, as I don't
have the binaries for it (I know it is possible to download the binaries, but
that's just not nearly as much fun as building from source :-) I also got my
network usage report today, and I can't afford to download the binaries :-(
I've been using the 'standard-supfile', (modified to suck from cvsup.au.
freebsd.org), with the source collection 'src-all' -- so I should be getting
the source changes for contrib as well. I think I'm getting current, as
the '*default release=cvs tag=.' line is present as well.
i.e. the relevant lines in my supfile are:
*default host=cvsup.au.freebsd.org
*default release=cvs tag=.
src-all
The tag on the Makefile in /usr/src/gnu/usr.bin/cc/cc_drv is
$FreeBSD: src/gnu/usr.bin/cc/cc_drv/Makefile,v 1.4 1998/08/27 23:35:15 .... $
This makefile does not include 'mkstemp.c' in the SRCS variable.
>
> : Hidden in the bowels of the FreeBSD source tree (/usr/src/gnu/usr.bin/binutils/
> : libbfd/alpha) is the file 'bfd.h', which configures the characteristics of the
> : host architecture. In this file is the line
> :
> : #define BFD_HOST_64BIT_LONG 1
> :
> : i.e. It is saying that a (native) alpha compiler has 64-bit registers. By
> : changing this line to
> :
> : #define BFD_HOST_64BIT_LONG 0
> :
> : the cross-compilation from the x86 architecture passes binutils without any
> : warnings.
>
> This needs to be fixed so that the right things happens. I suspect
> that this is due to mixing the HOST and the TARGET variables in the
> same file...
Sorry 'bout the ungracious hack on bfd.h -- I'd never recommend such a change.
I'm still very much in the exploration phase, and trying to identify where
changes need to be made. I think you're suspicion is correct - I've hacked
the Makefile in /usr/src/gnu/usr.bin/cc/cc_tools:
131a132,133
>GCC_HOST?= `uname -m`
>
134c136
< echo '#include "${GCC_ARCH}/xm-${GCC_ARCH}.h"' >> ${.TARGET}
---
> echo '#include "${GCC_HOST}/xm-${GCC_HOST}.h"' >> ${.TARGET}
The compilation progresses further, but later falls over when the cross-
compiler is being used.
>
> Warner
>
Regards,
Mike
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