[Buildroot] ARCH=ppc vs powerpc

[Buildroot] ARCH=ppc vs powerpc

[Guillaume Dargaud]

Anyone care to comment on that:

$ make ARCH=ppc linux26-menuconfig
[ -f
/home/guinevere/buildroot/project_build_ppc/genepy/linux-2.6.24/.config ] |
| cp local/genepy/linux-2.6.24.config
/home/guinevere/buildroot/project_build_pp
c/genepy/linux-2.6.24/.config
/usr/bin/make -j1 HOSTCC="/usr/bin/gcc" HOSTCFLAGS="" ARCH=powerpc
[...]

Why does ARCH change ?!?

[...]
.config:132:warning: trying to assign nonexistent symbol XILINX_ML405
[...]

$ find -name Kconfig -exec grep -H XILINX_ML405 {} \;
./toolchain_build_powerpc/linux-2.6.24/arch/ppc/platforms/4xx/Kconfig:config
XILINX_ML405
./project_build_ppc/genepy/linux-2.6.24/arch/ppc/platforms/4xx/Kconfig:config
XILINX_ML405
./toolchain_build_ppc/linux-2.6.24/arch/ppc/platforms/4xx/Kconfig:config
XILINX_ML405

Well, it's no surprise that it won't find them if it looks in the powerpc
branch...
The question is why ?
-- 
Guillaume Dargaud
http://www.gdargaud.net/

[Buildroot] ARCH=ppc vs powerpc

[Peter Korsgaard]

>>>>> "Guillaume" == Guillaume Dargaud <dargaud@lpsc.in2p3.fr> writes:

 Guillaume> Anyone care to comment on that:
 Guillaume> $ make ARCH=ppc linux26-menuconfig
 Guillaume> [ -f
 Guillaume> /home/guinevere/buildroot/project_build_ppc/genepy/linux-2.6.24/.config ] |
 Guillaume> | cp local/genepy/linux-2.6.24.config
 Guillaume> /home/guinevere/buildroot/project_build_pp
 Guillaume> c/genepy/linux-2.6.24/.config
 Guillaume> /usr/bin/make -j1 HOSTCC="/usr/bin/gcc" HOSTCFLAGS="" ARCH=powerpc
 Guillaume> [...]

 Guillaume> Why does ARCH change ?!?

Because target/linux/Makefile.in uses KERNEL_ARCH for ARCH setting,
and not what you have set ARCH to on the cmdline.

KERNEL_ARCH is calculated in
toolchain/kernel-headers/kernel-headers.mk - Notice that arch/ppc is
deprecated, you should use arch/powerpc nowadays.

-- 
Bye, Peter Korsgaard

[Buildroot] ARCH=ppc vs powerpc

[Guillaume Dargaud]

> Because target/linux/Makefile.in uses KERNEL_ARCH for ARCH setting,
> and not what you have set ARCH to on the cmdline.
>
> KERNEL_ARCH is calculated in
> toolchain/kernel-headers/kernel-headers.mk - Notice that arch/ppc is
> deprecated, you should use arch/powerpc nowadays.


Thank you very much.

Now I can do this properly [*]:
$ make ARCH=ppc KERNEL_ARCH=ppc linux26

And also this:
$ make ARCH=ppc uclibc
$ make ARCH=ppc busybox

Now how do I combine it all in one line ? This doesn't work:
$ make ARCH=ppc KERNEL_ARCH=ppc


[*]: yet it fails at the very end:
[...]
cp -f arch/ppc/boot/simple/zvmlinux arch/ppc/boot/images/zImage.elf
rm -f arch/ppc/boot/simple/zvmlinux
make[1]: Leaving directory 
`/home/guinevere/buildroot/project_build_ppc/genepy/linux-2.6.24'
cp -dpf 
/home/guinevere/buildroot/project_build_ppc/genepy/linux-2.6.24/arch/ppc/boot/zImage 
/home/guinevere/buildroot/binaries/genepy/ppc-linux-2.6.24-20080402.z
cp: cannot stat 
`/home/guinevere/buildroot/project_build_ppc/genepy/linux-2.6.24/arch/ppc/boot/zImage': 
No such file or directory
make: *** 
[/home/guinevere/buildroot/binaries/genepy/ppc-linux-2.6.24-20080402.z] 
Error 1

-- 
Guillaume Dargaud
http://www.gdargaud.net/ 

[Buildroot] ARCH=ppc vs powerpc

[Bernhard Fischer]

On Wed, Apr 02, 2008 at 04:45:57PM +0200, Peter Korsgaard wrote:
>>>>>> "Guillaume" == Guillaume Dargaud <dargaud@lpsc.in2p3.fr> writes:
>
> Guillaume> Anyone care to comment on that:
> Guillaume> $ make ARCH=ppc linux26-menuconfig
> Guillaume> [ -f
> Guillaume> /home/guinevere/buildroot/project_build_ppc/genepy/linux-2.6.24/.config ] |
> Guillaume> | cp local/genepy/linux-2.6.24.config
> Guillaume> /home/guinevere/buildroot/project_build_pp
> Guillaume> c/genepy/linux-2.6.24/.config
> Guillaume> /usr/bin/make -j1 HOSTCC="/usr/bin/gcc" HOSTCFLAGS="" ARCH=powerpc
> Guillaume> [...]
>
> Guillaume> Why does ARCH change ?!?
>
>Because target/linux/Makefile.in uses KERNEL_ARCH for ARCH setting,
>and not what you have set ARCH to on the cmdline.
>
>KERNEL_ARCH is calculated in
>toolchain/kernel-headers/kernel-headers.mk - Notice that arch/ppc is
>deprecated, you should use arch/powerpc nowadays.

Somebody did IMHO the Wrong Thing by silently unset'ing ARCH in the
toplevel Makefile. The proper thing to do is either $(error ARCH is set)
or, preferably, check that $ARCH is clean via dependencies.sh
Silently unseting ARCH is error-prone and misleading (as you see).

[Buildroot] ARCH=ppc vs powerpc

[Guillaume Dargaud]

>>> Why does ARCH change ?!?
>>
>>Because target/linux/Makefile.in uses KERNEL_ARCH for ARCH setting,
>>and not what you have set ARCH to on the cmdline.
>>
>>KERNEL_ARCH is calculated in
>>toolchain/kernel-headers/kernel-headers.mk - Notice that arch/ppc is
>>deprecated, you should use arch/powerpc nowadays.
>
> Somebody did IMHO the Wrong Thing by silently unset'ing ARCH in the
> toplevel Makefile. The proper thing to do is either $(error ARCH is set)
> or, preferably, check that $ARCH is clean via dependencies.sh
> Silently unseting ARCH is error-prone and misleading (as you see).

So, how does one go to compile for a Xilinx ppc ?
Deprecated or not, various info I have insist that I should use ARCH=ppc
If I try:

$ make ARCH=ppc KERNEL_ARCH=ppc

Checking build system dependencies:
BUILDROOT_DL_DIR clean:                         Ok
CC clean:                                       Ok
CXX clean:                                      Ok
CPP clean:                                      Ok
CFLAGS clean:                                   Ok
INCLUDES clean:                                 Ok
CXXFLAGS clean:                                 Ok
LD_LIBRARY_PATH sane:                           Ok
which installed:                                Ok
sed works:                                      Ok (/bin/sed)
GNU make version '3.81':                        Ok
C compiler '/usr/bin/gcc'
C compiler version '3.4.6':                     Ok
C++ compiler '/usr/bin/g++'
C++ compiler version '3.4.6':                   Ok
bison installed:                                Ok
flex installed:                                 Ok
gettext installed:                              Ok
makeinfo installed:                             Ok
Build system dependencies:                      Ok

rm -rf /home/guinevere/buildroot/project_build_ppc/genepy/buildroot-config
mkdir -p /home/guinevere/buildroot/project_build_ppc/genepy
cp -dpRf package/config/buildroot-config 
/home/guinevere/buildroot/project_build_ppc/genepy/buildroot-config
(cd /home/guinevere/buildroot/toolchain_build_ppc/linux-2.6.24; \
         /usr/bin/make -j1 ARCH=ppc \
                HOSTCC="/usr/bin/gcc" HOSTCFLAGS="" \
                HOSTCXX="/usr/bin/g++" \
                INSTALL_HDR_PATH=/home/guinevere/buildroot/toolchain_build_ppc/linux 
headers_install; \
        )
make[1]: Entering directory 
`/home/guinevere/buildroot/toolchain_build_ppc/linux-2.6.24'
  CHK     include/linux/version.h
*** Error: Headers not exportable for this architecture (ppc)
make[1]: *** [headers_install] Error 1
make[1]: Leaving directory 
`/home/guinevere/buildroot/toolchain_build_ppc/linux-2.6.24'
make: *** [/home/guinevere/buildroot/toolchain_build_ppc/linux/.configured] 
Error 2


Am I supposed to try and edit some of the makefile to get them to use 
ARCH=ppc for the kernel ? I can't believe I'm the first one to use buildroot 
on a Xilinx board, so what am I doing wrong...?
-- 
Guillaume Dargaud
http://www.gdargaud.net/

[Buildroot] ARCH=ppc vs powerpc

[Peter Korsgaard]

>>>>> "Guillaume" == Guillaume Dargaud <dargaud@lpsc.in2p3.fr> writes:

 Guillaume> So, how does one go to compile for a Xilinx ppc ?

There's initial support in arch/powerpc for the ppc405 in the Xilinx
FPGAs - But yes, it's early days.

 Guillaume> Deprecated or not, various info I have insist that I
 Guillaume> should use ARCH=ppc If I try:

 Guillaume> $ make ARCH=ppc KERNEL_ARCH=ppc

That won't work as various other parts (E.G. kernel headers depends on
KERNEL_ARCH=powerpc

 Guillaume> Am I supposed to try and edit some of the makefile to get
 Guillaume> them to use ARCH=ppc for the kernel ? I can't believe I'm
 Guillaume> the first one to use buildroot on a Xilinx board, so what
 Guillaume> am I doing wrong...?  -- Guillaume Dargaud
 Guillaume> http://www.gdargaud.net/

I normally don't compile my (ppc) kernels within buildroot. First
create your rootfs and cross compiler with buildroot and then use it
to compile the kernel manually (E.G. add
build_powerpc/staging_dir/usr/bin to your path).

-- 
Bye, Peter Korsgaard

[Buildroot] ARCH=ppc vs powerpc

[Guillaume Dargaud]

> Guillaume> Deprecated or not, various info I have insist that I
> Guillaume> should use ARCH=ppc If I try:
>
> Guillaume> $ make ARCH=ppc KERNEL_ARCH=ppc
>
> That won't work as various other parts (E.G. kernel headers depends on
> KERNEL_ARCH=powerpc

So how is one supposed to understand the 'use the ARCH=ppc' branch for 
Xilinx compilation ?!?

This morning I restarted from stratch to try to solve those ARCH vs 
KERNEL_ARCH issues, and now I've figured out that I can't even compile 
anything anymore (with the same .config files as before):

$ make ARCH=ppc
[...]
checking whether we are cross compiling... no
[...]

I'm...lost and confused.

> I normally don't compile my (ppc) kernels within buildroot. First
> create your rootfs and cross compiler with buildroot and then use it
> to compile the kernel manually (E.G. add
> build_powerpc/staging_dir/usr/bin to your path).


OK, I think that's the straw that broke the camel's back. After a totally 
wasted month I'm gonna go do something else, like try OpenEmbedded or ELDK.

-- 
Guillaume Dargaud
http://www.gdargaud.net/

[Buildroot] ARCH=ppc vs powerpc

[Peter Korsgaard]

>>>>> "Guillaume" == Guillaume Dargaud <dargaud@lpsc.in2p3.fr> writes:

Hi,

 Guillaume> Deprecated or not, various info I have insist that I
 Guillaume> should use ARCH=ppc If I try:
 >> 
 Guillaume> $ make ARCH=ppc KERNEL_ARCH=ppc
 >> 
 >> That won't work as various other parts (E.G. kernel headers depends on
 >> KERNEL_ARCH=powerpc

 Guillaume> So how is one supposed to understand the 'use the
 Guillaume> ARCH=ppc' branch for Xilinx compilation ?!?

I'm not following you - ARCH=ppc is a kernel thing, it doesn't have
anything to do with buildroot.

 Guillaume> This morning I restarted from stratch to try to solve
 Guillaume> those ARCH vs KERNEL_ARCH issues, and now I've figured out
 Guillaume> that I can't even compile anything anymore (with the same
 Guillaume> .config files as before):

 Guillaume> $ make ARCH=ppc
 Guillaume> [...]
 Guillaume> checking whether we are cross compiling... no
 Guillaume> [...]

 Guillaume> I'm...lost and confused.

Don't set ARCH or KERNEL_ARCH on the buildroot command line, only use
it when you are compiling a kernel (outside buildroot).

 >> I normally don't compile my (ppc) kernels within buildroot. First
 >> create your rootfs and cross compiler with buildroot and then use it
 >> to compile the kernel manually (E.G. add
 >> build_powerpc/staging_dir/usr/bin to your path).

 Guillaume> OK, I think that's the straw that broke the camel's
 Guillaume> back. After a totally wasted month I'm gonna go do
 Guillaume> something else, like try OpenEmbedded or ELDK.

Suit yourself, but buildroot with Xilinx/ARCH=ppc kernels works (I use
it myself).

-- 
Bye, Peter Korsgaard

[Buildroot] ARCH=ppc vs powerpc

[Guillaume Dargaud]

> Suit yourself, but buildroot with Xilinx/ARCH=ppc kernels works (I use
> it myself).

Yes, but how ? What's the proper set of steps ? The idiot's guide to ml405 
system building if you wish !

Indeed Buildroot looks like a great idea and a lovely system, that's why I 
spent so much time learning how to use it, but with nothing to show at the 
end. 2 days ago I could compile everything cleanly, although it wouldn't 
boot for some reason. Today after a distclean and using the same .config 
files, it just won't go past the first few files ('no cross compiler' ?!?)

Funny thing is that I have a colleague who told me to use it because he's 
using it successfully on the same architecture, although his version is 
about a year old. I asked him to show me... He can't figure out how he ever 
got it to build in the first place.

OK, sorry for my rant. Just need to vent off some frustration.
-- 
Guillaume Dargaud
http://www.gdargaud.net/

[Buildroot] ARCH=ppc vs powerpc

[Peter Korsgaard]

>>>>> "Guillaume" == Guillaume Dargaud <dargaud@lpsc.in2p3.fr> writes:

 >> Suit yourself, but buildroot with Xilinx/ARCH=ppc kernels works (I use
 >> it myself).

 Guillaume> Yes, but how ? What's the proper set of steps ? The
 Guillaume> idiot's guide to ml405 system building if you wish !

Just do make menuconfig and select powerpc/405/softfloat and off you
go.

 Guillaume> Indeed Buildroot looks like a great idea and a lovely
 Guillaume> system, that's why I spent so much time learning how to
 Guillaume> use it, but with nothing to show at the end. 2 days ago I
 Guillaume> could compile everything cleanly, although it wouldn't
 Guillaume> boot for some reason. Today after a distclean and using
 Guillaume> the same .config files, it just won't go past the first
 Guillaume> few files ('no cross compiler' ?!?)

It sounds like you have modified some files and/or the clean didn't
clean it out. Could you give a fresh svn checkout a try?

I just did a build with the following .config and it seems to work:

#
# Automatically generated make config: don't edit
# Fri Apr  4 09:20:55 2008
#
BR2_HAVE_DOT_CONFIG=y
BR2_VERSION="0.10.0-svn"
# BR2_alpha is not set
# BR2_arm is not set
# BR2_armeb is not set
# BR2_avr32 is not set
# BR2_cris is not set
# BR2_ia64 is not set
# BR2_i386 is not set
# BR2_m68k is not set
# BR2_mips is not set
# BR2_mipsel is not set
# BR2_nios2 is not set
BR2_powerpc=y
# BR2_s390 is not set
# BR2_sh is not set
# BR2_sh64 is not set
# BR2_sparc is not set
# BR2_sparc64 is not set
# BR2_x86_64 is not set
# BR2_x86_i386 is not set
# BR2_x86_i486 is not set
# BR2_x86_i586 is not set
# BR2_x86_i686 is not set
# BR2_x86_pentiumpro is not set
# BR2_x86_pentium_mmx is not set
# BR2_x86_pentium_m is not set
# BR2_x86_pentium2 is not set
# BR2_x86_pentium3 is not set
# BR2_x86_pentium4 is not set
# BR2_x86_prescott is not set
# BR2_x86_nocona is not set
# BR2_x86_core2 is not set
# BR2_x86_k6 is not set
# BR2_x86_k6_2 is not set
# BR2_x86_athlon is not set
# BR2_x86_athlon_4 is not set
# BR2_x86_opteron is not set
# BR2_x86_opteron_sse3 is not set
# BR2_x86_barcelona is not set
# BR2_x86_geode is not set
# BR2_x86_c3 is not set
# BR2_x86_winchip_c6 is not set
# BR2_x86_winchip2 is not set
# BR2_generic_powerpc is not set
# BR2_powerpc_401 is not set
# BR2_powerpc_403 is not set
BR2_powerpc_405=y
# BR2_powerpc_405fp is not set
# BR2_powerpc_440 is not set
# BR2_powerpc_440fp is not set
# BR2_powerpc_505 is not set
# BR2_powerpc_601 is not set
# BR2_powerpc_602 is not set
# BR2_powerpc_603 is not set
# BR2_powerpc_603e is not set
# BR2_powerpc_604 is not set
# BR2_powerpc_604e is not set
# BR2_powerpc_620 is not set
# BR2_powerpc_630 is not set
# BR2_powerpc_740 is not set
# BR2_powerpc_7400 is not set
# BR2_powerpc_7450 is not set
# BR2_powerpc_750 is not set
# BR2_powerpc_801 is not set
# BR2_powerpc_821 is not set
# BR2_powerpc_823 is not set
# BR2_powerpc_860 is not set
# BR2_powerpc_970 is not set
# BR2_powerpc_8540 is not set
BR2_ARCH="powerpc"
BR2_ENDIAN="BIG"
BR2_GCC_TARGET_TUNE="405"

#
# Target options
#

#
# Project Options
#
BR2_PROJECT="uclibc"
BR2_HOSTNAME="uclibc"
BR2_BANNER="Welcome to the Erik's uClibc development environment."

#
# Preset Devices
#
BR2_BOARD_NAME="arm"
BR2_BOARD_PATH="target/device/ARM"

#
# Generic Architecture support
#

#
# Generic System Support
#
# BR2_TARGET_GENERIC_ACCESS_POINT is not set
# BR2_TARGET_GENERIC_FIREWALL is not set
# BR2_TARGET_GENERIC_DEV_SYSTEM is not set

#
# Build options
#
BR2_WGET="wget --passive-ftp -nd"
BR2_SVN_CO="svn co"
BR2_SVN_UP="svn up"
BR2_GIT="git clone"
BR2_ZCAT="gzip -d -c"
BR2_BZCAT="bzcat"
BR2_TAR_OPTIONS=""
BR2_DL_DIR="$(BASE_DIR)/dl"

#
# Mirrors and Download locations
#
BR2_SOURCEFORGE_MIRROR="easynews"
BR2_KERNEL_MIRROR="http://www.kernel.org/pub/"
BR2_GNU_MIRROR="http://ftp.gnu.org/pub/gnu"
BR2_DEBIAN_MIRROR="http://ftp.debian.org"

#
# Atmel Mirrors
#
BR2_ATMEL_MIRROR="ftp://www.at91.com/pub/buildroot/"
BR2_AT91_PATCH_MIRROR="http://maxim.org.za/AT91RM9200/2.6/"
BR2_STAGING_DIR="$(BUILD_DIR)/staging_dir"
# BR2_FPU_SUFFIX is not set
BR2_TOPDIR_PREFIX=""
BR2_TOPDIR_SUFFIX=""
BR2_ROOTFS_PREFIX="rootfs"
BR2_ROOTFS_SUFFIX=""
BR2_GNU_BUILD_SUFFIX="pc-linux-gnu"
BR2_GNU_TARGET_SUFFIX="linux-uclibc"
BR2_JLEVEL=1
# BR2_PREFER_IMA is not set
# BR2_DEPRECATED is not set
BR2_RECENT=y
# BR2_ENABLE_DEBUG is not set
BR2_STRIP_strip=y
# BR2_STRIP_sstrip is not set
# BR2_STRIP_none is not set
# BR2_OPTIMIZE_0 is not set
# BR2_OPTIMIZE_1 is not set
# BR2_OPTIMIZE_2 is not set
# BR2_OPTIMIZE_3 is not set
BR2_OPTIMIZE_S=y
# BR2_PREFER_STATIC_LIB is not set
# BR2_HAVE_MANPAGES is not set
# BR2_HAVE_INFOPAGES is not set
# BR2_HAVE_DEVFILES is not set
BR2_UPDATE_CONFIG=y

#
# Toolchain
#
BR2_TOOLCHAIN_BUILDROOT=y
# BR2_TOOLCHAIN_EXTERNAL is not set
# BR2_TOOLCHAIN_EXTERNAL_SOURCE is not set
BR2_TOOLCHAIN_SOURCE=y
BR2_EXT_GCC_VERSION_4_1_2=y
BR2_EXT_GCC_VERSION_4_2_1=y
BR2_EXT_BINUTILS_VERSION_2_17=y
BR2_EXT_UCLIBC_VERSION_0_9_29=y
BR2_EXT_UCLIBC_VERSION_0_9_28_3=y

#
# Kernel Header Options
#
# BR2_KERNEL_HEADERS_2_4_25 is not set
# BR2_KERNEL_HEADERS_2_4_27 is not set
# BR2_KERNEL_HEADERS_2_4_29 is not set
# BR2_KERNEL_HEADERS_2_4_31 is not set
# BR2_KERNEL_HEADERS_2_6_9 is not set
# BR2_KERNEL_HEADERS_2_6_11 is not set
# BR2_KERNEL_HEADERS_2_6_12 is not set
# BR2_KERNEL_HEADERS_2_6_20_4 is not set
# BR2_KERNEL_HEADERS_2_6_20 is not set
# BR2_KERNEL_HEADERS_2_6_21_5 is not set
# BR2_KERNEL_HEADERS_2_6_21 is not set
# BR2_KERNEL_HEADERS_2_6_22_1 is not set
# BR2_KERNEL_HEADERS_2_6_22_10 is not set
# BR2_KERNEL_HEADERS_2_6_22 is not set
# BR2_KERNEL_HEADERS_2_6_23 is not set
BR2_KERNEL_HEADERS_2_6_24=y
# BR2_KERNEL_HEADERS_SNAP is not set
BR2_DEFAULT_KERNEL_HEADERS="2.6.24"

#
# uClibc Options
#
# BR2_UCLIBC_VERSION_0_9_28_3 is not set
BR2_UCLIBC_VERSION_0_9_29=y
# BR2_UCLIBC_VERSION_SNAPSHOT is not set
BR2_UCLIBC_CONFIG="toolchain/uClibc/uClibc-0.9.29.config"
# BR2_ENABLE_LOCALE is not set
# BR2_PTHREADS_NONE is not set
# BR2_PTHREADS is not set
BR2_PTHREADS_OLD=y
# BR2_PTHREADS_NATIVE is not set
# BR2_PTHREAD_DEBUG is not set
# BR2_UCLIBC_PROGRAM_INVOCATION is not set

#
# Binutils Options
#
# BR2_BINUTILS_VERSION_2_17 is not set
# BR2_BINUTILS_VERSION_2_17_50_0_17 is not set
BR2_BINUTILS_VERSION_2_18=y
# BR2_BINUTILS_VERSION_2_18_50_0_1 is not set
BR2_BINUTILS_VERSION="2.18"
BR2_EXTRA_BINUTILS_CONFIG_OPTIONS=""

#
# GCC Options
#
# BR2_GCC_VERSION_3_4_6 is not set
# BR2_GCC_VERSION_4_0_4 is not set
# BR2_GCC_VERSION_4_1_2 is not set
# BR2_GCC_VERSION_4_2_1 is not set
BR2_GCC_VERSION_4_2_3=y
# BR2_GCC_IS_SNAP is not set
BR2_GCC_SUPPORTS_SYSROOT=y
# BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE is not set
BR2_GCC_VERSION="4.2.3"
BR2_TOOLCHAIN_SYSROOT=y
# BR2_GCC_USE_SJLJ_EXCEPTIONS is not set
BR2_EXTRA_GCC_CONFIG_OPTIONS=""
# BR2_GCC_CROSS_CXX is not set
# BR2_GCC_CROSS_FORTRAN is not set
# BR2_INSTALL_LIBSTDCPP is not set
# BR2_INSTALL_OBJC is not set
# BR2_INSTALL_FORTRAN is not set
BR2_GCC_SHARED_LIBGCC=y

#
# Ccache Options
#
# BR2_CCACHE is not set

#
# Gdb Options
#
# BR2_PACKAGE_GDB is not set
# BR2_PACKAGE_GDB_SERVER is not set
# BR2_PACKAGE_GDB_HOST is not set

#
# elf2flt
#
# BR2_ELF2FLT is not set
# BR2_MKLIBS is not set

#
# Common Toolchain Options
#
# BR2_PACKAGE_SSTRIP_TARGET is not set
# BR2_PACKAGE_SSTRIP_HOST is not set
# BR2_ENABLE_MULTILIB is not set
# BR2_LARGEFILE is not set
# BR2_INET_IPV6 is not set
# BR2_INET_RPC is not set
# BR2_USE_WCHAR is not set
# BR2_SOFT_FLOAT is not set
BR2_TARGET_OPTIMIZATION="-Os -pipe"
BR2_CROSS_TOOLCHAIN_TARGET_UTILS=y

#
# Package Selection for the target
#
BR2_PACKAGE_BUSYBOX=y
# BR2_BUSYBOX_VERSION_1_2_2_1 is not set
# BR2_BUSYBOX_VERSION_1_6_1 is not set
# BR2_BUSYBOX_VERSION_1_7_X is not set
# BR2_BUSYBOX_VERSION_1_8_X is not set
# BR2_BUSYBOX_VERSION_1_9_X is not set
BR2_BUSYBOX_VERSION_1_10_X=y
# BR2_PACKAGE_BUSYBOX_SNAPSHOT is not set
BR2_BUSYBOX_VERSION="1.10.0"
BR2_PACKAGE_BUSYBOX_FULLINSTALL=y
BR2_PACKAGE_BUSYBOX_CONFIG="package/busybox/busybox-1.6.0.config"
# BR2_PACKAGE_BUSYBOX_HIDE_OTHERS is not set
# BR2_PACKAGE_BUSYBOX_SKELETON is not set

#
# The minimum needed to build a uClibc development system
#
# BR2_PACKAGE_BASH is not set
# BR2_PACKAGE_BZIP2 is not set
# BR2_PACKAGE_DIFFUTILS is not set
# BR2_PACKAGE_FLEX is not set
# BR2_PACKAGE_GCC_TARGET is not set
# BR2_PACKAGE_GREP is not set
# BR2_PACKAGE_MAKE is not set
# BR2_PACKAGE_PATCH is not set

#
# Other development stuff
#
# BR2_PACKAGE_AUTOCONF is not set
# BR2_PACKAGE_AUTOMAKE is not set
# BR2_PACKAGE_BISON is not set
# BR2_PACKAGE_CCACHE_TARGET is not set
# BR2_PACKAGE_DISTCC is not set
# BR2_PACKAGE_DMALLOC is not set
# BR2_PACKAGE_FAKEROOT is not set
# BR2_HOST_FAKEROOT is not set
# BR2_PACKAGE_GETTEXT is not set
# BR2_PACKAGE_LIBINTL is not set
# BR2_PACKAGE_LIBGMP is not set
# BR2_PACKAGE_LIBMPFR is not set
# BR2_PACKAGE_LIBTOOL is not set
# BR2_PACKAGE_M4 is not set
# BR2_PACKAGE_PKGCONFIG is not set
# BR2_READLINE is not set
# BR2_PACKAGE_VALGRIND is not set

#
# Other stuff
#
# BR2_PACKAGE_AT is not set
# BR2_PACKAGE_BERKELEYDB is not set
# BR2_PACKAGE_BSDIFF is not set
# BR2_PACKAGE_CUPS is not set
# BR2_PACKAGE_CUSTOMIZE is not set
# BR2_PACKAGE_DASH is not set
# BR2_PACKAGE_FILE is not set
# BR2_PACKAGE_GAMIN is not set
# BR2_PACKAGE_ICU is not set
# BR2_PACKAGE_IPKG is not set
# BR2_PACKAGE_KEXEC is not set
# BR2_PACKAGE_LESS is not set
# BR2_PACKAGE_LIBDAEMON is not set
# BR2_PACKAGE_LIBELF is not set
# BR2_PACKAGE_LIBEVENT is not set
# BR2_PACKAGE_LIBFLOAT is not set
# BR2_PACKAGE_LIBGCRYPT is not set
# BR2_PACKAGE_LIBGPG_ERROR is not set
# BR2_PACKAGE_LIBLOCKFILE is not set
# BR2_PACKAGE_LIBSYSFS is not set
# BR2_PACKAGE_LOCKFILE_PROGS is not set
# BR2_PACKAGE_LSOF is not set
# BR2_PACKAGE_LTP-TESTSUITE is not set
# BR2_PACKAGE_LTRACE is not set
# BR2_PACKAGE_LTT is not set
# BR2_PACKAGE_MODULE_INIT_TOOLS is not set
# BR2_PACKAGE_MODUTILS is not set
# BR2_PACKAGE_NG_SPICE_REWORK is not set
# BR2_PACKAGE_PORTAGE is not set
# BR2_PACKAGE_PROCPS is not set
# BR2_PACKAGE_PSMISC is not set
# BR2_PACKAGE_SQLITE is not set
# BR2_PACKAGE_STARTUP_NOTIFICATION is not set
# BR2_PACKAGE_STRACE is not set
# BR2_PACKAGE_SUDO is not set
# BR2_PACKAGE_SYSKLOGD is not set
# BR2_PACKAGE_SYSVINIT is not set
# BR2_PACKAGE_TINYLOGIN is not set
# BR2_PACKAGE_UTIL-LINUX is not set
# BR2_PACKAGE_WHICH is not set
BR2_TEXTEDIT_SUPPORT=y
# BR2_PACKAGE_ED is not set
# BR2_PACKAGE_NANO is not set
# BR2_PACKAGE_UEMACS is not set
# BR2_PACKAGE_VIM is not set
BR2_NETWORK_SUPPORT=y

#
# Networking applications
#

#
# argus		- disabled (requires libpcap)
#
# BR2_PACKAGE_AVAHI is not set
# BR2_PACKAGE_BOA is not set
# BR2_PACKAGE_BIND is not set
# BR2_PACKAGE_BRIDGE is not set
# BR2_PACKAGE_CURL is not set
# BR2_PACKAGE_LIBCURL is not set
# BR2_PACKAGE_ISC_DHCP is not set
# BR2_PACKAGE_DNSMASQ is not set
# BR2_PACKAGE_DROPBEAR is not set
# BR2_PACKAGE_ETHTOOL is not set
# BR2_PACKAGE_HASERL is not set
# BR2_PACKAGE_IRDA_UTILS is not set
# BR2_PACKAGE_IPERF is not set
# BR2_PACKAGE_IPROUTE2 is not set

#
# ipsec-tools	- disabled (requires openssl, flex and the flex library (libfl.a) )
#
# BR2_PACKAGE_IPTABLES is not set
# BR2_PACKAGE_KISMET is not set
# BR2_PACKAGE_L2TP is not set
# BR2_PACKAGE_LIBCGI is not set
# BR2_PACKAGE_LIBCGICC is not set
# BR2_PACKAGE_LIBEXOSIP2 is not set
# BR2_PACKAGE_LIBOSIP2 is not set
# BR2_PACKAGE_LIBPCAP is not set
# BR2_PACKAGE_LINKS is not set
# BR2_PACKAGE_LRZSZ is not set
# BR2_PACKAGE_MDNSRESPONDER is not set
# BR2_PACKAGE_MICROCOM is not set
# BR2_PACKAGE_MROUTED is not set
# BR2_PACKAGE_MUTT is not set
# BR2_PACKAGE_NBD is not set
# BR2_PACKAGE_NCFTP is not set
# BR2_PACKAGE_NETCAT is not set
# BR2_PACKAGE_NETKITBASE is not set
# BR2_PACKAGE_NETKITTELNET is not set
# BR2_PACKAGE_NETPLUG is not set
# BR2_PACKAGE_NETSNMP is not set

#
# nfs-utils requires a toolchain with 'Enable RPC' selected
#
# BR2_PACKAGE_NTP is not set
# BR2_PACKAGE_OLSR is not set
# BR2_PACKAGE_OPENNTPD is not set
# BR2_PACKAGE_OPENSSH is not set
# BR2_PACKAGE_OPENSSL is not set
# BR2_PACKAGE_OPENVPN is not set
# BR2_PACKAGE_OPENSWAN is not set

#
# portmap requires a toolchain with 'Enable RPC' selected
#
# BR2_PACKAGE_PPPD is not set
# BR2_PACKAGE_RP_PPPOE is not set
# BR2_PACKAGE_PPTP_LINUX is not set
# BR2_PACKAGE_PROFTPD is not set
# BR2_PACKAGE_QUAGGA is not set

#
# quagga suite
#
# BR2_PACKAGE_QUAGGA_ZEBRA is not set
# BR2_PACKAGE_QUAGGA_BGPD is not set
# BR2_PACKAGE_QUAGGA_RIPD is not set
# BR2_PACKAGE_QUAGGA_RIPNGD is not set
# BR2_PACKAGE_QUAGGA_OSPFD is not set
# BR2_PACKAGE_QUAGGA_WATCHQUAGGA is not set
# BR2_PACKAGE_QUAGGA_ISISD is not set
# BR2_PACKAGE_RSYNC is not set
# BR2_PACKAGE_SAMBA is not set
# BR2_PACKAGE_SOCAT is not set
# BR2_PACKAGE_STUNNEL is not set
# BR2_PACKAGE_TCPDUMP is not set
# BR2_PACKAGE_DHCPDUMP is not set
# BR2_PACKAGE_TFTPD is not set
# BR2_PACKAGE_LIGHTTPD is not set
# BR2_PACKAGE_THTTPD is not set
# BR2_PACKAGE_TINYHTTPD is not set
# BR2_PACKAGE_TN5250 is not set
# BR2_PACKAGE_TTCP is not set
# BR2_PACKAGE_UDPCAST is not set

#
# vpnc		- disabled (requires libgcrypt and libgpg_error)
#
# BR2_PACKAGE_VTUN is not set
# BR2_PACKAGE_WEBIF is not set
# BR2_PACKAGE_WGET is not set
# BR2_PACKAGE_WIRELESS_TOOLS is not set
BR2_BLOCKDEV_SUPPORT=y

#
# dbus not available (need expat or libxml2)
#
# BR2_PACKAGE_DM is not set
# BR2_PACKAGE_DMRAID is not set
# BR2_PACKAGE_E2FSPROGS is not set
# BR2_PACKAGE_FCONFIG is not set
# BR2_PACKAGE_FIS is not set
# BR2_PACKAGE_LIBFUSE is not set
# BR2_PACKAGE_GADGETFS_TEST is not set
# BR2_PACKAGE_HAL is not set
# BR2_PACKAGE_HDPARM is not set
# BR2_PACKAGE_HOTPLUG is not set
# BR2_PACKAGE_HWDATA is not set
# BR2_PACKAGE_IOSTAT is not set
# BR2_PACKAGE_LIBAIO is not set
# BR2_PACKAGE_LIBRAW1394 is not set
# BR2_PACKAGE_LIBUSB is not set
# BR2_PACKAGE_LM_SENSORS is not set
# BR2_PACKAGE_LVM2 is not set
# BR2_PACKAGE_MDADM is not set
# BR2_PACKAGE_MEMTESTER is not set
# BR2_PACKAGE_MKDOSFS is not set
# BR2_PACKAGE_MTD is not set
# BR2_PACKAGE_NTFS-3G is not set
# BR2_PACKAGE_PCIUTILS is not set
# BR2_PACKAGE_RAIDTOOLS is not set
# BR2_PACKAGE_SETSERIAL is not set
# BR2_PACKAGE_SFDISK is not set
# BR2_PACKAGE_SMARTMONTOOLS is not set
# BR2_PACKAGE_UDEV is not set
# BR2_PACKAGE_USBMOUNT is not set
# BR2_PACKAGE_USBUTILS is not set
# BR2_PACKAGE_WIPE is not set
# BR2_PACKAGE_XFSPROGS is not set
BR2_AUDIO_SUPPORT=y
# BR2_PACKAGE_ALSA_LIB is not set

#
# asterisk	- disabled (required openssl and mpg123)
#
# BR2_PACKAGE_AUMIX is not set
# BR2_PACKAGE_LIBMAD is not set
# BR2_PACKAGE_LIBOGG is not set
# BR2_PACKAGE_LIBSNDFILE is not set

#
# libvorbis requires the package libogg to build
#
# BR2_PACKAGE_MADPLAY is not set
# BR2_PACKAGE_MPG123 is not set
# BR2_PACKAGE_SPEEX is not set
# BR2_PACKAGE_FESTIVAL is not set
BR2_GRAPHIC_SUPPORT=y

#
# text rendering libraries
#
# BR2_PACKAGE_NCURSES is not set
# BR2_PACKAGE_NEWT is not set
# BR2_PACKAGE_SLANG is not set

#
# text rendering applications
#
# BR2_PACKAGE_DIALOG is not set

#
# graphic libraries
#
# BR2_PACKAGE_DIRECTFB is not set
# BR2_PACKAGE_IMAGEMAGICK is not set
# BR2_PACKAGE_JPEG is not set
# BR2_PACKAGE_LIBPNG is not set
# BR2_PACKAGE_LIBUNGIF is not set
# BR2_PACKAGE_SDL is not set
# BR2_PACKAGE_SDL_MIXER is not set
# BR2_PACKAGE_SDL_TTF is not set
# BR2_PACKAGE_TIFF is not set

#
# busybox graphic applications
#

#
# --> (May be broken in busybox)
#
# BR2_PACKAGE_FBV is not set
# BR2_PACKAGE_FBSET is not set

#
# other GUIs
#
# BR2_PACKAGE_QTE is not set
# BR2_PACKAGE_QTOPIA4 is not set
BR2_PACKAGE_XSERVER_none=y
# BR2_PACKAGE_XSERVER_x11r7 is not set
# BR2_PACKAGE_XSERVER_xorg is not set
# BR2_PACKAGE_XSERVER_tinyx is not set
BR2_X11_PREFIX="/usr"

#
# X libraries and helper libraries
#

#
# atk		- disabled (requires libglib2)
#
# BR2_PACKAGE_PANGO is not set
# BR2_PACKAGE_LIBDRM is not set
# BR2_PACKAGE_LIBGLIB12 is not set
# BR2_PACKAGE_LIBGLIB2 is not set
# BR2_PACKAGE_LIBSEXY is not set

#
# fltk		- disabled (requires Xorg(7))
#
# BR2_PACKAGE_OPENMOTIF is not set
# BR2_PACKAGE_FONTCONFIG is not set
# BR2_PACKAGE_FREETYPE is not set
# BR2_PACKAGE_TSLIB is not set
# BR2_PACKAGE_WEBKIT is not set

#
# X Window managers
#
# BR2_PACKAGE_MATCHBOX is not set

#
# blackbox		- disabled (requires Xorg(7))
#

#
# X applications
#
# BR2_PACKAGE_ALSAMIXERGUI is not set

#
# dillo		- disabled (requires jpeg,libglib12,libgtk12,zlib,libpng and Xorg(7))
#
# BR2_PACKAGE_DOCKER is not set
# BR2_PACKAGE_GQVIEW is not set
# BR2_PACKAGE_LEAFPAD is not set

#
# midori		- disabled (requires Xorg(7))
#
# BR2_PACKAGE_PCMANFM is not set
# BR2_PACKAGE_SYLPHEED is not set
# BR2_PACKAGE_TORSMO is not set
# BR2_PACKAGE_X11VNC is not set
# BR2_PACKAGE_XPDF is not set
# BR2_PACKAGE_XSTROKE is not set
# BR2_PACKAGE_XVKBD is not set

#
# Video libraries/codecs and applications
#
# BR2_PACKAGE_MPLAYER is not set
BR2_COMPRESSOR_SUPPORT=y
# BR2_PACKAGE_GZIP is not set
# BR2_PACKAGE_LZO is not set
# BR2_PACKAGE_LZMA_TARGET is not set
# BR2_PACKAGE_LZMA_HOST is not set
# BR2_PACKAGE_ZLIB is not set
BR2_SCRIPTING_SUPPORT=y

#
# lua		- disabled (requires readline and ncurses)
#
# BR2_PACKAGE_MICROPERL is not set
# BR2_PACKAGE_PYTHON is not set
# BR2_PACKAGE_RUBY is not set
# BR2_PACKAGE_TCL is not set
# BR2_PACKAGE_PHP is not set
BR2_XML_SUPPORT=y
# BR2_PACKAGE_EXPAT is not set
# BR2_PACKAGE_EZXML is not set
# BR2_PACKAGE_LIBXML2 is not set

#
# libxslt	- disabled (requires pkgconfig)
#
# BR2_PACKAGE_XERCES is not set
BR2_JAVA_SUPPORT=y
# BR2_PACKAGE_CLASSPATH is not set
BR2_GAMES=y
# BR2_PACKAGE_LXDOOM is not set
# BR2_PACKAGE_LXDOOM_WAD is not set
# BR2_PACKAGE_GNUCHESS is not set
# BR2_PACKAGE_XBOARD is not set
# BR2_PACKAGE_RUBIX is not set
# BR2_PACKAGE_MAGICCUBE4D is not set
# BR2_PACKAGE_VICE is not set

#
# Target filesystem options
#

#
# filesystem for target device
#
# BR2_TARGET_ROOTFS_CRAMFS is not set
# BR2_TARGET_ROOTFS_CLOOP is not set
# BR2_TARGET_ROOTFS_EXT2 is not set
# BR2_TARGET_ROOTFS_EXT2_NONE is not set
# BR2_TARGET_ROOTFS_EXT2_GZIP is not set
# BR2_TARGET_ROOTFS_EXT2_BZIP2 is not set
# BR2_TARGET_ROOTFS_EXT2_LZMA is not set
# BR2_TARGET_ROOTFS_JFFS2 is not set
# BR2_TARGET_ROOTFS_UBIFS is not set
# BR2_TARGET_ROOTFS_SQUASHFS is not set
# BR2_TARGET_ROOTFS_TAR is not set
# BR2_TARGET_ROOTFS_CPIO is not set
# BR2_TARGET_ROOTFS_INITRAMFS is not set
# BR2_TARGET_ROOTFS_ROMFS is not set

#
# bootloader for target device
#
# BR2_TARGET_YABOOT is not set
# BR2_TARGET_UBOOT is not set

#
# Kernel
#
BR2_KERNEL_none=y
# BR2_KERNEL_LINUX_ADVANCED is not set
# BR2_KERNEL_LINUX is not set
# BR2_KERNEL_HURD is not set
# BR2_PACKAGE_LINUX is not set

-- 
Bye, Peter Korsgaard

[Buildroot] ARCH=ppc vs powerpc

[Guillaume Dargaud]

Hello Peter and thanks for the support.

> Just do make menuconfig and select powerpc/405/softfloat and off you
> go.

Did exactly that from a clean svn. Incidentaly I notice that there are now 
far fewer activated defaults (no IPV6, CXX, locale, kernel compilation, 
etc...):
$ make menuconfig
$ make
[...]
                /home/guinevere/buildroot/toolchain_build_powerpc/gmp-4.2.2/configure 
\
                --prefix="/home/guinevere/buildroot/toolchain_build_powerpc/gmp" 
\
                --build=i386-pc-linux-gnu \
                --host=i386-pc-linux-gnu \
                --enable-shared \
                --enable-static \
                --disable-nls \
        )
checking build system type... i386-pc-linux-gnu
checking host system type... i386-pc-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking ABI=32
checking compiler /usr/bin/gcc  -m32 -O2 -fomit-frame-pointer ... yes
checking compiler /usr/bin/gcc  -m32 -O2 -fomit-frame-pointer has 
sizeof(long)==4... yes
checking compiler 
usr/bin/gcc  -m32 -O2 -fomit-frame-pointer  -mtune=i386... yes
checking compiler 
usr/bin/gcc  -m32 -O2 -fomit-frame-pointer -mtune=i386  -march=i386... yes
checking for i386-pc-linux-gnu-gcc... /usr/bin/gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether /usr/bin/gcc  accepts -g... yes
checking for /usr/bin/gcc  option to accept ANSI C... none needed
checking how to run the C preprocessor... /usr/bin/cpp
configure: error: C preprocessor "/usr/bin/cpp " fails sanity check
See `config.log' for more details.
make: *** 
[/home/guinevere/buildroot/toolchain_build_powerpc/gmp-4.2.2-host/.configured] 
Error 1

It also tries to compile gmp without the BR2_SOFT_FLOAT option. And same 
error with your .config.

Now gmp is a dependency of uclibc, right ? So I disable the FPU in there... 
same thing.

There's something wrong with the cross compiler, right ?!?

2 $ egrep -v "^#|^$" .config
BR2_HAVE_DOT_CONFIG=y
BR2_VERSION="0.10.0-svn"
BR2_powerpc=y
BR2_powerpc_405=y
BR2_ARCH="powerpc"
BR2_ENDIAN="BIG"
BR2_GCC_TARGET_TUNE="405"
BR2_PROJECT="uclibc"
BR2_HOSTNAME="uclibc"
BR2_BANNER="Welcome to the Erik's uClibc development environment."
BR2_BOARD_NAME="arm"
BR2_BOARD_PATH="target/device/ARM"
### What is this doing here ?!?

BR2_WGET="wget --passive-ftp -nd"
BR2_SVN_CO="svn co"
BR2_SVN_UP="svn up"
BR2_GIT="git clone"
BR2_ZCAT="gzip -d -c"
BR2_BZCAT="bzcat"
BR2_TAR_OPTIONS=""
BR2_DL_DIR="$(BASE_DIR)/dl"
BR2_SOURCEFORGE_MIRROR="easynews"
BR2_KERNEL_MIRROR="http://www.kernel.org/pub/"
BR2_GNU_MIRROR="http://ftp.gnu.org/pub/gnu"
BR2_DEBIAN_MIRROR="http://ftp.debian.org"
BR2_ATMEL_MIRROR="ftp://www.at91.com/pub/buildroot/"
BR2_AT91_PATCH_MIRROR="http://maxim.org.za/AT91RM9200/2.6/"
BR2_STAGING_DIR="$(BUILD_DIR)/staging_dir"
BR2_TOPDIR_PREFIX=""
BR2_TOPDIR_SUFFIX=""
BR2_ROOTFS_PREFIX="rootfs"
BR2_ROOTFS_SUFFIX=""
BR2_GNU_BUILD_SUFFIX="pc-linux-gnu"
BR2_GNU_TARGET_SUFFIX="linux-uclibc"
BR2_JLEVEL=1
BR2_RECENT=y
BR2_STRIP_strip=y
BR2_OPTIMIZE_S=y
BR2_UPDATE_CONFIG=y
BR2_TOOLCHAIN_BUILDROOT=y
BR2_TOOLCHAIN_SOURCE=y
BR2_EXT_GCC_VERSION_4_1_2=y
BR2_EXT_GCC_VERSION_4_2_1=y
BR2_EXT_BINUTILS_VERSION_2_17=y
BR2_EXT_UCLIBC_VERSION_0_9_29=y
BR2_EXT_UCLIBC_VERSION_0_9_28_3=y
BR2_KERNEL_HEADERS_2_6_24=y
BR2_DEFAULT_KERNEL_HEADERS="2.6.24"
BR2_UCLIBC_VERSION_0_9_29=y
BR2_UCLIBC_CONFIG="toolchain/uClibc/uClibc-0.9.29.config"
BR2_PTHREADS_OLD=y
BR2_BINUTILS_VERSION_2_18=y
BR2_BINUTILS_VERSION="2.18"
BR2_EXTRA_BINUTILS_CONFIG_OPTIONS=""
BR2_GCC_VERSION_4_2_3=y
BR2_GCC_SUPPORTS_SYSROOT=y
BR2_GCC_VERSION="4.2.3"
BR2_TOOLCHAIN_SYSROOT=y
BR2_EXTRA_GCC_CONFIG_OPTIONS=""
BR2_GCC_SHARED_LIBGCC=y
BR2_TARGET_OPTIMIZATION="-Os -pipe"
BR2_CROSS_TOOLCHAIN_TARGET_UTILS=y
BR2_PACKAGE_BUSYBOX=y
BR2_BUSYBOX_VERSION_1_10_X=y
BR2_BUSYBOX_VERSION="1.10.0"
BR2_PACKAGE_BUSYBOX_FULLINSTALL=y
BR2_PACKAGE_BUSYBOX_CONFIG="package/busybox/busybox-1.6.0.config"
BR2_TEXTEDIT_SUPPORT=y
BR2_NETWORK_SUPPORT=y
BR2_BLOCKDEV_SUPPORT=y
BR2_AUDIO_SUPPORT=y
BR2_GRAPHIC_SUPPORT=y
BR2_PACKAGE_XSERVER_none=y
BR2_X11_PREFIX="/usr"
BR2_COMPRESSOR_SUPPORT=y
BR2_SCRIPTING_SUPPORT=y
BR2_XML_SUPPORT=y
BR2_JAVA_SUPPORT=y
BR2_GAMES=y
BR2_KERNEL_none=y



Thanks.
-- 
Guillaume Dargaud
http://www.gdargaud.net/Antarctica/

[Buildroot] ARCH=ppc vs powerpc

[Peter Korsgaard]

>>>>> "Guillaume" == Guillaume Dargaud <dargaud@lpsc.in2p3.fr> writes:

 Guillaume> Hello Peter and thanks for the support.
 >> Just do make menuconfig and select powerpc/405/softfloat and off you
 >> go.

 Guillaume> Did exactly that from a clean svn. Incidentaly I notice
 Guillaume> that there are now far fewer activated defaults (no IPV6,
 Guillaume> CXX, locale, kernel compilation,

Exactly - The .defconfig was quite screwed up :/

 Guillaume> checking how to run the C preprocessor... /usr/bin/cpp
 Guillaume> configure: error: C preprocessor "/usr/bin/cpp " fails sanity check
 Guillaume> See `config.log' for more details.
 Guillaume> make: *** 
 Guillaume> [/home/guinevere/buildroot/toolchain_build_powerpc/gmp-4.2.2-host/.configured] 
 Guillaume> Error 1

What Linux distribution and what version of gcc/cpp are you using?

I'm using:
% gcc -v                                                     ~
Using built-in specs.
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.1.3 --program-suffix=-4.1 --enable-__cxa_atexit --enable-clocale=gnu --enable-libstdcxx-debug --enable-mpfr --enable-checking=release x86_64-linux-gnu
Thread model: posix
gcc version 4.1.3 20070831 (prerelease) (Debian 4.1.2-16)

 Guillaume> It also tries to compile gmp without the BR2_SOFT_FLOAT
 Guillaume> option. And same error with your .config.

 Guillaume> Now gmp is a dependency of uclibc, right ? So I disable
 Guillaume> the FPU in there...  same thing.

It's afaik a dependency of gcc.

 Guillaume> There's something wrong with the cross compiler, right ?!?

 Guillaume> 2 $ egrep -v "^#|^$" .config
 Guillaume> BR2_HAVE_DOT_CONFIG=y
 Guillaume> BR2_VERSION="0.10.0-svn"
 Guillaume> BR2_powerpc=y
 Guillaume> BR2_powerpc_405=y
 Guillaume> BR2_ARCH="powerpc"
 Guillaume> BR2_ENDIAN="BIG"
 Guillaume> BR2_GCC_TARGET_TUNE="405"
 Guillaume> BR2_PROJECT="uclibc"
 Guillaume> BR2_HOSTNAME="uclibc"
 Guillaume> BR2_BANNER="Welcome to the Erik's uClibc development environment."
 Guillaume> BR2_BOARD_NAME="arm"
 Guillaume> BR2_BOARD_PATH="target/device/ARM"
 Guillaume> ### What is this doing here ?!?

Don't worry, this is OK. (Ulf did this, and indeed - you could argue
about it's validity).

-- 
Bye, Peter Korsgaard

[Buildroot] ARCH=ppc vs powerpc

[Guillaume Dargaud]

> What Linux distribution and what version of gcc/cpp are you using?
>
> I'm using:
> % gcc -v                                                     ~
> Using built-in specs.
> Target: x86_64-linux-gnu
> Configured with: 
> ../src/configure -v --enable-languages=c,c++,fortran,objc,obj-c++,treelang 
>  --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext 
>  --enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.1.3 
>  --program-suffix=-4.1 --enable-__cxa_atexit --enable-clocale=gnu --enable-libstdcxx-debug 
>  --enable-mpfr --enable-checking=release x86_64-linux-gnu
> Thread model: posix
> gcc version 4.1.3 20070831 (prerelease) (Debian 4.1.2-16)

I'm on Scientific Linux, a clone of Red Hat.

$ gcc -v
Reading specs from /usr/lib/gcc/i386-redhat-linux/3.4.6/specs
Configured with: 
../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info 
 --enable-shared --enable-threads=posix --disable-checking --with-system-zlib 
 --enable-__cxa_atexit --disable-libunwind-exceptions --enable-java-awt=gtk  
--host=i386-redhat-linux
Thread model: posix
gcc version 3.4.6 20060404 (Red Hat 3.4.6-9)

I'm more used to gentoo or Ubuntu than RedHat, but apparently that version 
of gcc is up to date with the repository.

-- 
Guillaume Dargaud
http://www.gdargaud.net/

[Buildroot] ARCH=ppc vs powerpc

[Peter Korsgaard]

>>>>> "Guillaume" == Guillaume Dargaud <dargaud@lpsc.in2p3.fr> writes:

Hi,

 >> gcc version 4.1.3 20070831 (prerelease) (Debian 4.1.2-16)

 Guillaume> I'm on Scientific Linux, a clone of Red Hat.

 Guillaume> $ gcc -v
 Guillaume> Reading specs from /usr/lib/gcc/i386-redhat-linux/3.4.6/specs
 Guillaume> Configured with: 
 Guillaume> ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info 
 Guillaume>  --enable-shared --enable-threads=posix --disable-checking --with-system-zlib 
 Guillaume>  --enable-__cxa_atexit --disable-libunwind-exceptions --enable-java-awt=gtk  
 Guillaume> --host=i386-redhat-linux
 Guillaume> Thread model: posix
 Guillaume> gcc version 3.4.6 20060404 (Red Hat 3.4.6-9)

Ok. I don't have such an old GCC on my system so I cannot test. Maybe
you will have more luck if you select GCC 3.4.6 in buildroot instead?

-- 
Bye, Peter Korsgaard

[Buildroot] ARCH=ppc vs powerpc

[Guillaume Dargaud]

> Ok. I don't have such an old GCC on my system so I cannot test. Maybe
> you will have more luck if you select GCC 3.4.6 in buildroot instead?

Trying this right now...

$ make
[...]
strip --strip-all -R .note -R .comment 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-addr2line 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-ar 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-as 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-c++filt 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-cpp 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-embedspu 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-gcc 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-gcc-3.4.6 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-gcov 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-gprof 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-ld 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-ldconfig 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-ldd 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-nm 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-objcopy 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-objdump 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-ranlib 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-readelf 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-size 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-strings 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-strip
strip: 
/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-embedspu: 
File format not recognized
make: *** 
[/home/guinevere/buildroot/toolchain_build_powerpc/gcc-3.4.6-final/.installed] 
Error 1

And nothing changes no matter if I try strip, sstrip or none...
-- 
Guillaume Dargaud
http://www.gdargaud.net/

[Buildroot] ARCH=ppc vs powerpc

[Peter Korsgaard]

>>>>> "Guillaume" == Guillaume Dargaud <dargaud@lpsc.in2p3.fr> writes:

 >> Ok. I don't have such an old GCC on my system so I cannot test. Maybe
 >> you will have more luck if you select GCC 3.4.6 in buildroot instead?

 Guillaume> Trying this right now...

 Guillaume> $ make
 Guillaume> [...]
 Guillaume> strip --strip-all -R .note -R .comment 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-addr2line 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-ar 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-as 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-c++filt 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-cpp 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-embedspu 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-gcc 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-gcc-3.4.6 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-gcov 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-gprof 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-ld 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-ldconfig 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-ldd 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-nm 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-objcopy 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-objdump 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-ranlib 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-readelf 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-size 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-strings 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-strip
 Guillaume> strip: 
 Guillaume> /home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-embedspu: 
 Guillaume> File format not recognized

So your strip doesn't seem to like to strip the
powerpc-linux-uclibc-embedspu shellscript (cannot blame it) - Could
you try setting GCC_STRIP_HOST_BINARIES to something else than true in
toolchain/gcc/gcc-uclibc-3.x.mk or alternative add %-embedspu to the
filter-out in line 289?

-- 
Bye, Peter Korsgaard

[Buildroot] ARCH=ppc vs powerpc

[Bernhard Fischer]

On Fri, Apr 04, 2008 at 02:30:52PM +0200, Guillaume Dargaud wrote:
>> Ok. I don't have such an old GCC on my system so I cannot test. Maybe
>> you will have more luck if you select GCC 3.4.6 in buildroot instead?
>
>Trying this right now...
>
>$ make
>[...]
>strip --strip-all -R .note -R .comment 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-addr2line 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-ar 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-as 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-c++filt 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-cpp 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-embedspu 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-gcc 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-gcc-3.4.6 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-gcov 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-gprof 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-ld 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-ldconfig 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-ldd 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-nm 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-objcopy 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-objdump 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-ranlib 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-readelf 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-size 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-strings 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-strip
>strip: 
>/home/guinevere/buildroot/build_powerpc/staging_dir/usr/bin/powerpc-linux-uclibc-embedspu: 
>File format not recognized

http://repo.or.cz/w/buildroot.git?a=commit;h=bae48dfcac2cfb5b25a6ca6addfb0ce16aacbade

[Buildroot] ARCH=ppc vs powerpc

[Peter Korsgaard]

>>>>> "Bernhard" == Bernhard Fischer <rep.dot.nop@gmail.com> writes:

Hi,

 Bernhard> http://repo.or.cz/w/buildroot.git?a=commit;h=bae48dfcac2cfb5b25a6ca6addfb0ce16aacbade

Ahh, like my suggestion.

I've checked it into svn as well as r21636.

-- 
Bye, Peter Korsgaard

[Buildroot] ARCH=ppc vs powerpc

[Guillaume Dargaud]

>>> Ok. I don't have such an old GCC on my system so I cannot test. Maybe
>>> you will have more luck if you select GCC 3.4.6 in buildroot instead?

OK, big system upgrade, I'm now at gcc 4.1.2 and I seem to be able to 
compile so far (haven't tried the kernel yet).

One thing to note: changing options in menuconfig is often poorly reflected 
in the 'makes' underneath and no amount of 'make clean' or 'make distclean' 
can make it right. Restarting from a clean svn and copying the .config file 
works though, but that's rather a big waste of time like in the case of 
strip/sstrip/none for instance.


Side question: where to best learn how to make a bootable ACE file for the 
Xilinx architecture from a kernel and, I assume, a bootloader ? Or in other 
words, how do I use the U-Boot option of buildroot ?
-- 
Guillaume Dargaud
http://www.gdargaud.net/

[Buildroot] ARCH=ppc vs powerpc

[Peter Korsgaard]

>>>>> "Guillaume" == Guillaume Dargaud <dargaud@lpsc.in2p3.fr> writes:

 >>>> Ok. I don't have such an old GCC on my system so I cannot test. Maybe
 >>>> you will have more luck if you select GCC 3.4.6 in buildroot instead?

 Guillaume> OK, big system upgrade, I'm now at gcc 4.1.2 and I seem to
 Guillaume> be able to compile so far (haven't tried the kernel yet).

Great.

 Guillaume> One thing to note: changing options in menuconfig is often
 Guillaume> poorly reflected in the 'makes' underneath and no amount
 Guillaume> of 'make clean' or 'make distclean' can make it
 Guillaume> right. Restarting from a clean svn and copying the .config
 Guillaume> file works though, but that's rather a big waste of time
 Guillaume> like in the case of strip/sstrip/none for instance.

True. I most of the time just do a rm -rf *build* after changing stuff.

 Guillaume> Side question: where to best learn how to make a bootable
 Guillaume> ACE file for the Xilinx architecture from a kernel and, I
 Guillaume> assume, a bootloader ? Or in other words, how do I use the
 Guillaume> U-Boot option of buildroot ?

Hmm, I have never used the systemace stuff, have you checked Grant
Likely's wiki? (http://wiki.secretlab.ca).

For the U-boot stuff, it's probably easier to build it by hand instead
of using buildroot while you are porting it to your board / tweaking
stuff.

-- 
Bye, Peter Korsgaard