crosstool for native compiler on new system. (solved)

Thu Mar 31 15:25:00 GMT 2005

Hello, Steven!

Some time ago, we discussed my problems with crosstool getting
a native compiler for mpc8540.

In the meanwhile, I was able to work my way through lots of crashes and
problems I had with my old gcc-3.3.3 compiler which came with my
toolchain. Finally, I made it to build gcc-3.4.3 successfully with
a "two-iteration bootstrap":

For the first iteration I was fine with --enable-languages=c only.
otherwise it would have crashed with strange libstdc++-v3 issues like I 
had (see below):
`/home/clemens/cross/crosstool-0.28-rc37/build/powerpc-linux-gnuspe/gcc-
 > 3.4.3-glibc-2.3.3/build-gcc/powerpc-linux-gnusp
 > e/libstdc++-v3'
 > make: *** [all-target-libstdc++-v3] Error 2

In the second step I was able to --enable-languages=c,c++,objc
and from there, life seems much more easier.
So, I got this problems solved by manually doing this two-iteration
bootstrapping.

Now I am running gcc-3.4.3 / glibc-2.3.4 / binutils 2.15.96 / linux 
2.6.11.6 (linux-headers-2.6.11.2) / Xorg-6.4.2 / Qt-3.3.4...
So, my toolchain seems to work really fine now.
All the xgcc crashes I had and lots of other issues came up
from a somehow broken toolchain in the beginning.
I recommend doing a (manual/partial) Linux-From-Scratch next time
to avoid the problems I had on my system.

Thanks to all of you for your assistance.

Best greets,

Clemens

Steven J. Magnani wrote:
> Clemens -
> 
> I compared the snippet you sent against my own builds. Yours more
> closely resembles my cross build than my native build. The cross build
> uses the bootstrap gcc (xgcc) to compile the file; the native build uses
> the installed compiler in my PATH (armv4tb-softfloat-linux-c++).
> 
> If you send me your scripts, .dat files, and any patches beyond the
> stock crosstool-0.28-rc37 distribution, I will kick off a build here and
> see where it leads.
> 
> No doubt about it, building these compilers is painful and certainly not
> what pays the bills for most of us.
> 
> Steve
> 
> -----Original Message-----
> From: Clemens Koller [mailto:clemens.koller@anagramm.de] 
> Sent: Tuesday, February 08, 2005 7:30 AM
> To: Steven J. Magnani; crossgcc@sources.redhat.com
> Subject: Re: crosstool for native compiler on new system.
> 
> 
> Hello, Steven!
> 
> 
>>The "error" might be spurious. The binutils build may have completed 
>>fine - it's possible that crosstoo.sh is 'test'ing something that 
>>isn't correct.
> 
>  > My first suggestion would be to check and see what's in
>  > /gnusperoot.
> 
> Okay, as far as I understand, it is looking for ld in the gnusperoot
> folder, which is not present at that time. I don't know if it needs to
> be there at that time or not:
> 
> ------8<-----same as yesterday--------------------------------------
>  > + cd ..
>  > + test -x /gnusperoot//usr/powerpc-linux-gnuspe/bin/ld
>  > + abort Build failed during binutils
>  > + echo Build failed during binutils
>  > Build failed during binutils
>  > + exec false
> ------8<------------------------------------------------------------
> 
> 
>>If the build did indeed fail, my next suggestion would be
>>to try without --nounpack.
> 
> 
> Okay, several hours later, I tried exactly the same thing without
> --nounpack demo-e500-cross.sh followed by demo-e500-native.sh:
> 
> Then it stops pretty late in demo-e500-native.sh at:
> ------8<------------------------------------------------------------
> /home/clemens/cross/crosstool-0.28-rc37/build/powerpc-linux-gnuspe/gcc-3
> .4.3-glibc-2.3.3/build-gcc/gcc/xgcc 
> -shared-libgcc -B/home/clemens/cross/c
> rosstool-0.28-rc37/build/powerpc-linux-gnuspe/gcc-3.4.3-glibc-2.3.3/buil
> d-gcc/gcc/ 
> -nostdinc++ -L/home/clemens/cross/crosstool-0.28-rc37/build/pow
> erpc-linux-gnuspe/gcc-3.4.3-glibc-2.3.3/build-gcc/powerpc-linux-gnuspe/n
> of/libstdc++-v3/src 
> -L/home/clemens/cross/crosstool-0.28-rc37/build/powerp
> c-linux-gnuspe/gcc-3.4.3-glibc-2.3.3/build-gcc/powerpc-linux-gnuspe/nof/
> libstdc++-v3/src/.libs 
> -B/opt/crosstool/powerpc-linux-gnuspe/bin/ -B/opt/c
> rosstool/powerpc-linux-gnuspe/lib/ -isystem 
> /opt/crosstool/powerpc-linux-gnuspe/include -isystem 
> /opt/crosstool/powerpc-linux-gnuspe/sys-include -
> msoft-float -fPIC -mstrict-align 
> -I/home/clemens/cross/crosstool-0.28-rc37/build/powerpc-linux-gnuspe/gcc
> -3.4.3-glibc-2.3.3/build-gcc/powerpc-linu
> x-gnuspe/nof/libstdc++-v3/include/powerpc-linux-gnuspe 
> -I/home/clemens/cross/crosstool-0.28-rc37/build/powerpc-linux-gnuspe/gcc
> -3.4.3-glibc-2.3.3/
> build-gcc/powerpc-linux-gnuspe/nof/libstdc++-v3/include 
> -I/home/clemens/cross/crosstool-0.28-rc37/build/powerpc-linux-gnuspe/gcc
> -3.4.3-glibc-2.3.3
> /gcc-3.4.3/libstdc++-v3/libsupc++ -O2 -g -O2 -g -O2 -D_GNU_SOURCE 
> -msoft-float -fPIC -mstrict-align -fno-implicit-templates -Wall -W 
> -Wwrite-strin
> gs -Wcast-qual -fdiagnostics-show-location=once -ffunction-sections 
> -fdata-sections -c 
> /home/clemens/cross/crosstool-0.28-rc37/build/powerpc-linux
> -gnuspe/gcc-3.4.3-glibc-2.3.3/gcc-3.4.3/libstdc++-v3/src/locale_init.cc 
> -o locale_init.o >/dev/null 2>&1
> make[6]: *** [locale_init.lo] Error 1
> make[6]: Leaving directory 
> `/home/clemens/cross/crosstool-0.28-rc37/build/powerpc-linux-gnuspe/gcc-
> 3.4.3-glibc-2.3.3/build-gcc/powerpc-linux-gnusp
> e/nof/libstdc++-v3/src'
> make[5]: *** [all-recursive] Error 1
> make[5]: Leaving directory 
> `/home/clemens/cross/crosstool-0.28-rc37/build/powerpc-linux-gnuspe/gcc-
> 3.4.3-glibc-2.3.3/build-gcc/powerpc-linux-gnusp
> e/nof/libstdc++-v3'
> make[4]: *** [all] Error 2
> make[4]: Leaving directory 
> `/home/clemens/cross/crosstool-0.28-rc37/build/powerpc-linux-gnuspe/gcc-
> 3.4.3-glibc-2.3.3/build-gcc/powerpc-linux-gnusp
> e/nof/libstdc++-v3'
> make[3]: *** [multi-do] Error 1
> make[3]: Leaving directory 
> `/home/clemens/cross/crosstool-0.28-rc37/build/powerpc-linux-gnuspe/gcc-
> 3.4.3-glibc-2.3.3/build-gcc/powerpc-linux-gnusp
> e/libstdc++-v3'
> make[2]: *** [all-multi] Error 2
> make[2]: Leaving directory 
> `/home/clemens/cross/crosstool-0.28-rc37/build/powerpc-linux-gnuspe/gcc-
> 3.4.3-glibc-2.3.3/build-gcc/powerpc-linux-gnusp
> e/libstdc++-v3'
> make[1]: *** [all] Error 2
> make[1]: Leaving directory 
> `/home/clemens/cross/crosstool-0.28-rc37/build/powerpc-linux-gnuspe/gcc-
> 3.4.3-glibc-2.3.3/build-gcc/powerpc-linux-gnusp
> e/libstdc++-v3'
> make: *** [all-target-libstdc++-v3] Error 2
> ------8<------------------------------------------------------------
> 
> Then I tried to cd into 
> ...build-gcc/powerpc-linux-gnuspe/nof/libstdc++-v3/src
> and did a 'make all' which worked fine...
> So I cannot really see why it stopped... with an EPERM?
> 
> But then I don't know how to finish the build. If I try to work without 
> --nounpack I end up as yesterday (see above).
> So - I got stuck again! :-*
> 
> Actually, I am really worried if all that work is really the straight 
> way to migrate (completely replace) my gcc-3.3.3+binutils 2.14 without
> FP support to the gcc-3.4.3+binutils 2.15 with e500/spe to get our own
> code efficiently working on our target. Is there no easier way to
> achieve that? Well, I am pretty new to compiling compilers and it's good
> to learn while doing things (and to 
> get help from others) but I run out of time to try things without being
> sure if there is a valuable result in the end. Can you recommend me 'the
> way' to go for... It doesn't need to be the fastest one, but I need to
> get my work done. Is there any more literature to read beside
> gcc.gnu.org/* and the little crossgcc-wiki?
> 
> Is there another way to get efficient code for the MPC8540?
> 
> Best greets, and thanks...
> 

Clemens Koller
_______________________________
R&D Imaging Devices
Anagramm GmbH
Rupert-Mayer-Str. 45/1
81379 Muenchen
Germany

http://www.anagramm.de
Phone: +49-89-741518-50
Fax: +49-89-741518-19

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