Messages in this thread | | | Date | Sat, 14 Feb 2004 02:08:41 +0100 | From | Herbert Poetzl <> | Subject | Re: Kernel Cross Compiling |
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On Fri, Feb 13, 2004 at 04:58:56PM -0800, David Mosberger wrote: > >>>>> On Fri, 13 Feb 2004 22:44:20 +0100, Herbert Poetzl <herbert@13thfloor.at> said: > > >> A recipe for building ia32->ia64 cross-toolchain on Debian can be > >> found here: > > >> http://www.gelato.unsw.edu.au/IA64wiki/CrossCompilation > > Herbert> that might work with the ia64 libraries and headers, but it > Herbert> seems to fail, with the headers included in the gcc > Herbert> tarball, for cross compiling, if you get it to compile > Herbert> without (g)libc which should not be required to build the > Herbert> crossgcc and the kernel, I would be very interested ... > > Ah, I see now what you mean. I suspect that's a setup that's rarely > tested, so I'm not surprised to see some breakage. > > Having said that, I got gcc v3.3.3 20031212 (prerelease) to build with > minor tweaks (see patch below). I'm no GCC-built-environment expert > and I'm quite certain that the patch isn't totally correct, but all > the unwind-related stuff isn't really needed in your case, because > that code only comes into play for exception-handling and C cleanup > handlers. > > The unwind-sjlj.c problem should occur on most other platforms too, so > I don't think that problem is ia64-specific.
ah, thanks, will test it, and maybe upgrade to 3.3.3 if this seems necessary ...
best, Herbert
> --david > > Index: gcc/unwind-sjlj.c > =================================================================== > RCS file: /cvs/gcc/gcc/gcc/unwind-sjlj.c,v > retrieving revision 1.11.2.2 > diff -u -r1.11.2.2 unwind-sjlj.c > --- gcc/unwind-sjlj.c 2 May 2003 21:01:21 -0000 1.11.2.2 > +++ gcc/unwind-sjlj.c 14 Feb 2004 00:50:33 -0000 > @@ -22,7 +22,9 @@ > #include "tconfig.h" > #include "tsystem.h" > #include "unwind.h" > +#ifndef inhibit_libc > #include "gthr.h" > +#endif > > #ifdef __USING_SJLJ_EXCEPTIONS__ > > Index: gcc/unwind.h > =================================================================== > RCS file: /cvs/gcc/gcc/gcc/unwind.h,v > retrieving revision 1.7.2.6 > diff -u -r1.7.2.6 unwind.h > --- gcc/unwind.h 4 Sep 2003 09:39:44 -0000 1.7.2.6 > +++ gcc/unwind.h 14 Feb 2004 00:50:33 -0000 > @@ -195,7 +195,9 @@ > compatible with the standard ABI for IA-64, we inline these. */ > > #ifdef __ia64__ > -#include <stdlib.h> > +# ifndef inhibit_libc > +# include <stdlib.h> > +# endif > > static inline _Unwind_Ptr > _Unwind_GetDataRelBase (struct _Unwind_Context *_C) > Index: gcc/config/ia64/fde-glibc.c > =================================================================== > RCS file: /cvs/gcc/gcc/gcc/config/ia64/fde-glibc.c,v > retrieving revision 1.5 > diff -u -r1.5 fde-glibc.c > --- gcc/config/ia64/fde-glibc.c 15 Dec 2001 11:46:51 -0000 1.5 > +++ gcc/config/ia64/fde-glibc.c 14 Feb 2004 00:50:34 -0000 > @@ -31,6 +31,9 @@ > #ifndef _GNU_SOURCE > #define _GNU_SOURCE > #endif > + > +#ifndef inhibit_libc > + > #include "config.h" > #include <stddef.h> > #include <stdlib.h> > @@ -162,3 +165,5 @@ > > return data.ret; > } > + > +#endif > Index: gcc/config/ia64/linux.h > =================================================================== > RCS file: /cvs/gcc/gcc/gcc/config/ia64/linux.h,v > retrieving revision 1.23 > diff -u -r1.23 linux.h > --- gcc/config/ia64/linux.h 3 Sep 2002 21:09:54 -0000 1.23 > +++ gcc/config/ia64/linux.h 14 Feb 2004 00:50:34 -0000 > @@ -58,7 +58,7 @@ > /* Do code reading to identify a signal frame, and set the frame > state data appropriately. See unwind-dw2.c for the structs. */ > > -#ifdef IN_LIBGCC2 > +#ifdef x_IN_LIBGCC2 > #include <signal.h> > #include <sys/ucontext.h> > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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