Question on Git Branches to use [nios2mmu vs unstable-nios2mmu]

nios2mmu uses the custom_fpga.h file to get your hardware configuration as described in http://alterawiki.com/wiki/creating_a_nios_ii_design_with_an_mmu

unstable-nios2mmu moved to using DeviceTree: http://alterawiki.com/wiki/devicetree

which is probably why you are having trouble compiling it.

Hello,

Have you succed to compile a uClinux with MMU ?

I try with the nios2mmu branch for linux and trunk for uClinux but I have comiplations errors...

Thank you for your help.

Best regards.

Pierre

Hi Pierre

I am currently compiling both the nios2mmu and unstable-nios2mmu branches. I must admit though, I did not invest a whole lot of effort into the nios2mmu branch though, it did compile but I want to be working with the latest developments which you'll find in the unstable-mmu branch.

Please tell us a bit more about the issues you're facing

Hi,

I use the nios2mmu branch because it deals with the custom_fpga.h file instead of the device tree (I work with Windows XP and I don't know if the sopc2dts tool works with Windows).

I created a board layer like said here in Altera Wiki (alterawiki.com/wiki/Creating_a_Nios_II_Design_with_an_MMU)

I downloaded the toolchain nios2gcc-20080203.tar.bz2

Here is my problem:

After having exported the PATH (export PATH=$PATH:~/path_to_toolchain/opt/nios2/bin), when I want to compile the kernel, the simple instruction make dosen't work. Here is the trace:

//////////////////////////////////////////////////////////////////////////////////

pierre@ubuntu:~/nios_linux_2010/nios2-linux/uClinux-dist$ CROSS_COMPILE=/home/pierre/nios_compilo/opt/nios2/bin/nios2-linux- make

make -f tools/autotools.mk autotools-cache

make[1]: entrant dans le répertoire « /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist »

set -e;

mkdir -p /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist/tools/autotools-cache/build//$$;

cd /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist/tools/autotools-cache/build//$$;

gt=`../../create-target-cache.sh nios2-linux-gnu`;

cp $gt /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist/vendors/config/$gt;

touch /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist/tools/autotools-cache/build/nios2-linux-gnu

../../create-target-cache.sh: 30: nios2-linux-gnu-gcc: not found

../../create-target-cache.sh: 31: nios2-linux-gnu-gcc: not found

Using inc dir for nios2-linux-gnu (nios2-unknown-linux-gnu):

../../create-target-cache.sh: 65: nios2-linux-gnu-gcc: not found

xargs: nios2-linux-gnu-readelf: Aucun fichier ou dossier de ce type

make[1]: quittant le répertoire « /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist »

ln -sf staging-compiler tools/nios2-linux-gnu-gcc

ln -sf staging-compiler tools/nios2-linux-gnu-g++

ln -sf staging-compiler tools/nios2-linux-gnu-cpp

ln -sf staging-compiler tools/nios2-linux-gnu-ld

ln -sf cross-pkg-config tools/nios2-linux-gnu-pkg-config

chmod +x tools/romfs-inst.sh tools/modules-alias.sh tools/build-udev-perms.sh

. linux-2.6.x/.config; if [ "$CONFIG_INITRAMFS_SOURCE" != "" ]; then

mkdir -p `dirname $CONFIG_INITRAMFS_SOURCE`;

touch $CONFIG_INITRAMFS_SOURCE || exit 1;

fi

rm -f linux-2.6.x/usr/initramfs_data.cpio

make ARCH=nios2 CROSS_COMPILE=nios2-linux-gnu- O=/home/pierre/nios_linux_2010/nios2-linux/uClinux-dist/linux-2.6.x -j1 -C ../linux-2.6 || exit 1

make[1]: entrant dans le répertoire « /home/pierre/nios_linux_2010/nios2-linux/linux-2.6 »

nios2-linux-gnu-gcc: command not found; perhaps you need to fix your PATH?

Using /home/pierre/nios_linux_2010/nios2-linux/linux-2.6 as source for kernel

GEN /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist/linux-2.6.x/Makefile

CHK include/linux/version.h

CHK include/generated/utsrelease.h

CC kernel/bounds.s

nios2-linux-gnu-gcc: command not found; perhaps you need to fix your PATH?

make[3]: *** [kernel/bounds.s] Erreur 127

make[2]: *** [prepare0] Erreur 2

make[1]: *** [sub-make] Erreur 2

make[1]: quittant le répertoire « /home/pierre/nios_linux_2010/nios2-linux/linux-2.6 »

make: *** [linux] Erreur 1

pierre@ubuntu:~/nios_linux_2010/nios2-linux/uClinux-dist$

//////////////////////////////////////////////////////////////////////////////////

I have to add CONFIGURE_HOST=nios2-linux because, without this, the prefix needed is nios2-linux-gnu witch dosen't exists for me.

But then, I have this error :

//////////////////////////////////////////////////////////////////////////////////

pierre@ubuntu:~/nios_linux_2010/nios2-linux/uClinux-dist$ CROSS_COMPILE=/home/pierre/nios_compilo/opt/nios2/bin/nios2-linux- make CONFIGURE_HOST=/home/pierre/nios_compilo/opt/nios2/bin/nios2-linux-

make -f tools/autotools.mk autotools-cache

make[1]: entrant dans le répertoire « /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist »

set -e;

mkdir -p /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist/tools/autotools-cache/build//home/pierre/nios_compilo/opt/nios2/bin//$$;

cd /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist/tools/autotools-cache/build//home/pierre/nios_compilo/opt/nios2/bin//$$;

gt=`../../create-target-cache.sh /home/pierre/nios_compilo/opt/nios2/bin/nios2-linux-`;

cp $gt /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist/vendors/config/$gt;

touch /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist/tools/autotools-cache/build//home/pierre/nios_compilo/opt/nios2/bin/nios2-linux-

/bin/sh: ../../create-target-cache.sh: not found

make[1]: *** [/home/pierre/nios_linux_2010/nios2-linux/uClinux-dist/tools/autotools-cache/build//home/pierre/nios_compilo/opt/nios2/bin/nios2-linux-] Erreur 127

make[1]: quittant le répertoire « /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist »

make: *** [autotools-cache] Erreur 2

pierre@ubuntu:~/nios_linux_2010/nios2-linux/uClinux-dist$ CROSS_COMPILE=/home/pierre/nios_compilo/opt/nios2/bin/nios2-linux- make CONFIGURE_HOST=nios2-linuxmake -f tools/autotools.mk autotools-cache

make[1]: entrant dans le répertoire « /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist »

make[1]: Rien à faire pour « autotools-cache ».

make[1]: quittant le répertoire « /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist »

chmod +x tools/romfs-inst.sh tools/modules-alias.sh tools/build-udev-perms.sh

. linux-2.6.x/.config; if [ "$CONFIG_INITRAMFS_SOURCE" != "" ]; then

mkdir -p `dirname $CONFIG_INITRAMFS_SOURCE`;

touch $CONFIG_INITRAMFS_SOURCE || exit 1;

fi

rm -f linux-2.6.x/usr/initramfs_data.cpio

make ARCH=nios2 CROSS_COMPILE=nios2-linux- O=/home/pierre/nios_linux_2010/nios2-linux/uClinux-dist/linux-2.6.x -j1 -C ../linux-2.6 || exit 1

make[1]: entrant dans le répertoire « /home/pierre/nios_linux_2010/nios2-linux/linux-2.6 »

Using /home/pierre/nios_linux_2010/nios2-linux/linux-2.6 as source for kernel

GEN /home/pierre/nios_linux_2010/nios2-linux/uClinux-dist/linux-2.6.x/Makefile

CHK include/linux/version.h

CHK include/generated/utsrelease.h

CC kernel/bounds.s

nios2-linux-gcc: /include: No such file or directory

nios2-linux-gcc: /include: No such file or directory

make[3]: *** [kernel/bounds.s] Erreur 1

make[2]: *** [prepare0] Erreur 2

make[1]: *** [sub-make] Erreur 2

make[1]: quittant le répertoire « /home/pierre/nios_linux_2010/nios2-linux/linux-2.6 »

make: *** [linux] Erreur 1

//////////////////////////////////////////////////////////////////////////////////

Thank you for your help.

Best regards.

Pierre

Hi

i didn't read all of your posting, but as I see you used the false toolchain. The Toolchain you used is for noMMU. For the MMU-Version there is already a binary toolchain included. The directory is "toolchain-mmu".

You should add "nios2-linux/toolchain-mmu/x86-linux2/bin" to the PATH variable.

Urmel

Thank you for your prompt response.

I try to use the nios2-linux/toolchain-mmu/x86-linux2/bin path, but it the same. I have the same error.

Thank you for your help.

Pierre

Make sure that only one of the toolchains is in the PATH variable.

As ykozlov wrote there is no need to use CROSS_COMPILE or something like that.

So just type 'make' in the "uClinux-dist" directory.

Urmel

Hi,

Thank you for your responses, it works with that.

I have another question.

I try to use the unstable_nios2mmu branch for linux2.6 and trunk for uClinuxdist in order to use the dts (device tree) support. I try to follow the Altera Wiki (alterawiki.com/wiki/Devicetree) but it's said :

////////////////////////////////////////////////////////////////////////////////////

5) enable device tree support in your uClinux-dist kernel config. enter the full path to your dts file in (), which will be dtc compiled and the dtb is linked into the kernel. important: You may still need to edit the file linux-2.6/arch/nios2/boards/generic-dts/include/asm/nios.h, to match your memory and cpu info.

////////////////////////////////////////////////////////////////////////////////////

In the unstable_nios2mmu branch I find any linux-2.6/arch/nios2/boards/generic-dts/include/asm/nios.h path... The only boards are 3c120 or neek...

I can select device tree support in kernel config but there are any fields "()" to specify the path to my dts file.

Have I the right branch?

Thank you very much for your help.

Best regards.

Pierre