Xen devel - Apr 2005 - xen/ia64 crosscompile

Hi Dan, could I convince you to take this patch? I''m trying to
cross-compile xen/ia64 so I can propose portability fixes that work for
ia64 too, but obviously I don''t
have /usr/local/sp_env/v2.2.5/i686/bin/ia64-unknown-linux-gcc and I
think it''s better to use the CROSS_COMPILE variable found in Config.mk.
Your build should be unaffected.

Also, have you tried building with a current gcc? Crosstool
(http://kegel.com/crosstool) gave me 3.4.2, but there are a fair number
of implicit function declarations that cause build breaks, some of which
live in Linux-patched code (I just hacked them by hand). I''d really
like
to be able to build with crosstool...

-- 
Hollis Blanchard
IBM Linux Technology Center


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

Sure.  I didn''t know anyone else was using a cross-compiler
to build Xen/ia64 (I use it quite frequently).

Actually, if you want to grab/try the fully-self-contained
cross-compiler I am using, see

ftp://ftp.hpl.hp.com/pub/xen-ia64/sp_env_v2.2.5.i686.tar.gz

Dan 
> -----Original Message-----
> From: Hollis Blanchard [mailto:hollisb@us.ibm.com] 
> Sent: Tuesday, April 05, 2005 3:27 PM
> To: Magenheimer, Dan (HP Labs Fort Collins)
> Cc: Xen-devel
> Subject: xen/ia64 crosscompile
> 
> Hi Dan, could I convince you to take this patch? I''m trying to
> cross-compile xen/ia64 so I can propose portability fixes 
> that work for
> ia64 too, but obviously I don''t
> have /usr/local/sp_env/v2.2.5/i686/bin/ia64-unknown-linux-gcc and I
> think it''s better to use the CROSS_COMPILE variable found in 
> Config.mk.
> Your build should be unaffected.
> 
> Also, have you tried building with a current gcc? Crosstool
> (http://kegel.com/crosstool) gave me 3.4.2, but there are a 
> fair number
> of implicit function declarations that cause build breaks, 
> some of which
> live in Linux-patched code (I just hacked them by hand). I''d 
> really like
> to be able to build with crosstool...
> 
> -- 
> Hollis Blanchard
> IBM Linux Technology Center
> 
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

I finally got around to trying your patch. It seems to work fine for
cross-compiling but it doesn''t work native (on an ia64).  It appears
that CC gets set to CROSS_COMPILE, which wreaks havoc.

I can get around this problem by surrounding the setting
of CROSS_COMPILE with ifneq ($(COMPILE_ARCH),$(TARGET_ARCH))

Will this do?

Dan
> -----Original Message-----
> From: Hollis Blanchard [mailto:hollisb@us.ibm.com] 
> Sent: Tuesday, April 05, 2005 3:27 PM
> To: Magenheimer, Dan (HP Labs Fort Collins)
> Cc: Xen-devel
> Subject: xen/ia64 crosscompile
> 
> Hi Dan, could I convince you to take this patch? I''m trying to
> cross-compile xen/ia64 so I can propose portability fixes 
> that work for
> ia64 too, but obviously I don''t
> have /usr/local/sp_env/v2.2.5/i686/bin/ia64-unknown-linux-gcc and I
> think it''s better to use the CROSS_COMPILE variable found in 
> Config.mk.
> Your build should be unaffected.
> 
> Also, have you tried building with a current gcc? Crosstool
> (http://kegel.com/crosstool) gave me 3.4.2, but there are a 
> fair number
> of implicit function declarations that cause build breaks, 
> some of which
> live in Linux-patched code (I just hacked them by hand). I''d 
> really like
> to be able to build with crosstool...
> 
> -- 
> Hollis Blanchard
> IBM Linux Technology Center
> 
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

On Wed, 2005-04-13 at 09:08 -0700, Magenheimer, Dan (HP Labs Fort
Collins) wrote:
> I finally got around to trying your patch. It seems to work fine for
> cross-compiling but it doesn''t work native (on an ia64).  It
appears
> that CC gets set to CROSS_COMPILE, which wreaks havoc.
> 
> I can get around this problem by surrounding the setting
> of CROSS_COMPILE with ifneq ($(COMPILE_ARCH),$(TARGET_ARCH))
Sorry, yup, that''s the right fix.

-- 
Hollis Blanchard
IBM Linux Technology Center


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel