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Re: Clean script to build cross gcc3 from scratch


Dimi Shahbaz <dshahbaz@ixiacom.com> writes:

> Hi,
> I'm trying to write a clean script that build a complete crossgcc
> toolchain (binutils, gcc3.0.4, and glibc) from scratch.

Check also the work that has been done as part of the x86-64 port at
http://www.x86-64.org,

> Bill's FAQ has been very helpful, but there are a lot of gotchas,
> especially for the powerpc.  I've put my build script and documentation
> online at
>      http://www.dimator.org/~dimator/work/crossgcc/
>
> It seems to work for sh4, but for ppc405 (which lacks an FPU)
> I keep running into problems.  My current problem is it can't find
> fenv_libc.h when building the final glibc.  Here is the line that fails:

This should be fixed in current CVS,

Andreas

>
> /home2/dimator/opt//ppc405/bin/powerpc-linux-gcc
> ../sysdeps/powerpc/fclrexcpt.c -c -O2 -Wall -Winline -Wstrict-prototypes
> -Wwrite-strings -g -mnew-mnemonics -Wa,-mppc -mpowerpc
> -Wno-uninitialized -D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES
> -DNO_LONG_DOUBLE -D_Mlong_double_=double -I../include -I.
> -I/home2/dimator/3rdParty/crosstools/glibc-ppc405/math -I.. -I../libio
> -I/home2/dimator/3rdParty/crosstools/glibc-ppc405
> -I../sysdeps/powerpc/elf -I../linuxthreads/sysdeps/unix/sysv/linux
> -I../linuxthreads/sysdeps/pthread -I../sysdeps/pthread
> -I../linuxthreads/sysdeps/unix/sysv -I../linuxthreads/sysdeps/unix
> -I../linuxthreads/sysdeps/powerpc -I../sysdeps/unix/sysv/linux/powerpc
> -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common
> -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysdeps/unix/sysv
> -I../sysdeps/unix/powerpc -I../sysdeps/unix -I../sysdeps/posix
> -I../sysdeps/powerpc -I../sysdeps/wordsize-32
> -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64
> -I../sysdeps/powerpc/soft-fp -I../sysdeps/ieee754
> -I../sysdeps/generic/elf -I../sysdeps/generic  -nostdinc -isystem
> /home2/dimator/opt//ppc405/lib/gcc-lib/powerpc-linux/3.0.4/include
> -isystem /home2/dimator/opt//ppc405/powerpc-linux/include/
> -D_LIBC_REENTRANT -include ../include/libc-symbols.h     -I../soft-fp/
> -o /home2/dimator/3rdParty/crosstools/glibc-ppc405/math/fclrexcpt.o
> ../sysdeps/powerpc/fclrexcpt.c:20:23: fenv_libc.h: No such file or directory
> ../sysdeps/powerpc/fclrexcpt.c: In function `__feclearexcept':
> ../sysdeps/powerpc/fclrexcpt.c:26: `fenv_union_t' undeclared (first use
> in this function)
> ../sysdeps/powerpc/fclrexcpt.c:26: (Each undeclared identifier is
> reported only once
> ../sysdeps/powerpc/fclrexcpt.c:26: for each function it appears in.)
> ../sysdeps/powerpc/fclrexcpt.c:26: parse error before "u"
> ../sysdeps/powerpc/fclrexcpt.c:29: `u' undeclared (first use in this
> function)
> ../sysdeps/powerpc/fclrexcpt.c:29: warning: implicit declaration of
> function `fegetenv_register'
> ../sysdeps/powerpc/fclrexcpt.c:32: `FPSCR_VX' undeclared (first use in
> this function)
> ../sysdeps/powerpc/fclrexcpt.c:32: `FE_ALL_INVALID' undeclared (first
> use in this function)
> ../sysdeps/powerpc/fclrexcpt.c:33: `FPSCR_STICKY_BITS' undeclared (first
> use in this function)
> ../sysdeps/powerpc/fclrexcpt.c:36: warning: implicit declaration of
> function `fesetenv_register'
> make[2]: ***
> [/home2/dimator/3rdParty/crosstools/glibc-ppc405/math/fclrexcpt.o] Error 1
> make[2]: Leaving directory
> `/home2/dimator/home/dank/ixia/Software/Source/linux/3rdParty/crosstools/glibc-2.2.5/math'
> make[1]: *** [math/others] Error 2
> make[1]: Leaving directory
> `/home2/dimator/home/dank/ixia/Software/Source/linux/3rdParty/crosstools/glibc-2.2.5'
> make: *** [all] Error 2
>
> /home2/dimator/opt//ppc405/bin/powerpc-linux-gcc -v:
> Reading specs from
> /home2/dimator/opt//ppc405/lib/gcc-lib/powerpc-linux/3.0.4/specs
> Configured with: ../gcc-3.0.4/configure --target=powerpc-linux
> --build=i686-linux --program-prefix=powerpc-linux-
> --prefix=/home2/dimator/opt//ppc405 --without-headers
> --enable-languages=c --with-newlib --disable-shared --with-cpu=403
> --without-fp
> Thread model: single
> gcc version 3.0.4
>
> glibc's configure switches:
> ../glibc-2.2.5/configure  --host=powerpc-linux
> --enable-add-ons=linuxthreads
> --with-headers=/home2/dimator/opt//ppc405/powerpc-linux/include/
> --prefix=/home2/dimator/opt//ppc405 --with-cpu=403 --without-fp
>
> Can anyone see what I'm doing wrong?  Again, my full build script
> is up at http://www.dimator.org/~dimator/work/crossgcc/
>
> Thanks!
>
>
>
>
> _______________________________________________
> Bug-glibc mailing list
> Bug-glibc@gnu.org
> http://mail.gnu.org/mailman/listinfo/bug-glibc
>

-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de
    http://www.suse.de/~aj

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