Update to buildroot toolchain for nios2

The latest update of elf2flt onto builtroot still has problem.

If you use the latest buildroot-snapshot.tar.bz2 with elf2flt included,

you have to remove it, and use the downloaded patch elf2flt.diff in post#2.

Remove the first part for toolchain/Config.in from file buildroot/dl/elf2flt.diff

And apply the patch.

cd buildroot
rm -rf toolchain/elf2flt
patch -p1 <dl/elf2flt.diff

Then follow the procedures in post#2.

hi hippo:

You said:"What browser do you use for downloading? The naming .tar.tar is strange."

I have solved the question.Because use windows xp OS downloaded *tar.bz2

files will meet the question. So I use linux OS download the*tar.bz2 files.The

files is correct.

I have tested the latest update svn. the uClibc-snapshot is OK now.

download those buildroot/uClibc/busybox snapshot.tar.bz2 again.

And I have prepared the config files,

http://forum.niosforum.com/forum/index.php...type=post&id=60 (http://forum.niosforum.com/forum/index.php?act=attach&type=post&id=60)

unzip them into the buildroot/dl dir. and copy buildroot/dl/buildroot.config to buildroot/.config

then in buildroot dir, make.

I will give you more details later.

I am failed build gcc, because can't connected to mirros.rcn.net to get gcc-3.4.2.tar.bz2.

Who can tell me how to use

China: ftp://linuxforum.net/ftp.gcc.gnu.org/ (ftp://linuxforum.net/ftp.gcc.gnu.org/) for solve the question?

Thanks

Alex

Alex,

ftp://linuxforum.net/ftp.gcc.gnu.org/rele...c-3.4.3.tar.bz2 (ftp://linuxforum.net/ftp.gcc.gnu.org/releases/gcc-3.4.3/gcc-3.4.3.tar.bz2)

The buildroot.config uses bintuils-0.15,gcc-3.4.3,kernel header 2.6.11, uClibc snapshot, busybox snapshot.

tar jxf buildroot-snapshot.tar.bz2
mkdir buildroot/dl

in buildroot dir,

make menuconfig, and just save and exit.

unzip the configs.zip into buildroot/dl, copy buildroot.config to buildroot/.config.

then in buildroot dir, make.

it will build the compiler,uclibc,busybox and rootfs.nios2.ext2.

the only problem remained, is the elf2flt.

use the old one as in post#24,

add the line

LDFLAGS+=-Wl,-elf2flt="-s 16000" -Wl,-v -Wl,-d

to buildroot/build-nios2/busybox/Rules.mak

remove file buildroot/build-nios2/busybox/busybox

and in buildroot dir, make again.

The rootfs is built into a ext2 image.

Login as root account. Mount it and copy to your rootfs,

mkdir /mnt/v1
mount -o loop buildroot/rootfs.nios2.ext2 /mnt/v1
cp -a /mnt/v1/*  your_rootfs_dir
chown -R your_username:your_username your_rootfs_dir
umount /mnt/v1

download gcc.3.4.2.tar.bz2 form ft,and place into buildroot/dl/

--- Quote Start ---

originally posted by hippo@Jan 10 2006, 10:57 PM

i have tested the latest update svn. the uclibc-snapshot is ok now.

download those buildroot/uclibc/busybox snapshot.tar.bz2 again.

and i have prepared the config files,

http://forum.niosforum.com/forum/index.php...type=post&id=60 (http://forum.niosforum.com/forum/index.php?act=attach&type=post&id=60)

unzip them into the buildroot/dl dir. and copy buildroot/dl/buildroot.config to buildroot/.config

then in buildroot dir, make.

i will give you more details later.

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=12122)

--- quote end ---

--- Quote End ---

hi hippo:

A question:

I have download gcc-3.4.2.tar.bz2 from

ftp://linuxforum.net/ftp.gcc.gnu.org/rele...4.3.tar.bz2,and (ftp://linuxforum.net/ftp.gcc.gnu.org/rele...c-3.4.3.tar.bz2,and) copy it to

/buildroot/dl.

But in make process , still connecting to mirrors.rcn.net.so make process faild.

What can I do?

B question:

follow you method:

in buildroot dir,

make menuconfig, and just save and exit.

Is it means ignore

select nios2, in toolchain option,

[ ] Use a daily snapshot of uClibc?

[*] Enable elf2flt support?

[ ] Include target utils in cross toolchain

I wish you will release a particular process article aboutinstall nios2 toolschain when you free.

It will very helpfule for novice, like me http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif .In fact , incorrect setup toolschain will

bring many crankish question in develop process.

Thank you very much.

Alex,

I have fixed the bug of elf2flt. And the next snapshot should work without special attention.

tar jxf buildroot-snapshot.tar.bz2
cd buildroot
mkdir dl
cd dl
unzip ...../configs.zip 
cp ..../gcc*bz2  ..../*snapshot*bz2 .  #  copy those files into dl
cd buildroot
make defconfig
cp dl/buildroot.config .config
make

What is the file which it trys to download?

hi hippo:

tar jxf buildroot-snapshot.tar.bz2

cd buildroot

mkdir dl

cd dl

unzip ...../configs.zip

cp ..../gcc*bz2 ..../*snapshot*bz2 . # copy those files into dl

cd buildroot

make defconfig

cp dl/buildroot.config .config

make

I am according to your method install toolchain,but make failed.

The erro information :

make -C /usr/local/nios2_toolchain/buildroot/toolchain_build_nios2/uClibc

PREFIX=/usr/local/nios2_toolchain/buildroot/toolchain_build_nios2/uClibc_dev/

DEVEL_PREFIX=/usr/

RUNTIME_PREFIX=/usr/local/nios2_toolchain/buildroot/toolchain_build_nios2/uClibc

_dev/

HOSTCC="gcc"

pregen install_dev;

make[1]: /usr/local/nios2_toolchain/buildroot/build_nios2/staging_dir/bin/nios2-

linux-uclibc-gcc: Command not found

make[1]: Entering directory `/usr/local/nios2_toolchain/buildroot/toolchain_buil

d_nios2/uClibc&#39;

make[1]: /usr/local/nios2_toolchain/buildroot/build_nios2/staging_dir/bin/nios2-

linux-uclibc-gcc: Command not found

BBmake -C extra/config conf

make[2]: /usr/local/nios2_toolchain/buildroot/build_nios2/staging_dir/bin/nios2-

linux-uclibc-gcc: Command not found

make[2]: Entering directory `/usr/local/nios2_toolchain/buildroot/toolchain_buil

d_nios2/uClibc/extra/config&#39;

tack-protector -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo "-fno-s

tack-protec&#34908;ake[2]: /usr/local/nios2_toolchain/buildroot/build_nios2/staging_di

r/bin/nios2-linux-uclibc-gcc: Command not found

?B?Bmake[2]: *** No rule to make target `|&#39;, needed by `../../extra/config/c

onf.o&#39;. Stop.

make[2]: Leaving directory `/usr/local/nios2_toolchain/buildroot/toolchain_build

_nios2/uClibc/extra/config&#39;

make[1]: *** [extra/config/conf] Error 2

make[1]: Leaving directory `/usr/local/nios2_toolchain/buildroot/toolchain_build

_nios2/uClibc&#39;

make: *** [/usr/local/nios2_toolchain/buildroot/toolchain_build_nios2/uClibc/.co

nfigured] Error 2

http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/sad.gif please help me check it.Thanks.

Let&#39;s do it step by step.

1. login with a user account, eg, alex. do not use root account.

your home dir will be /home/alex, or in short ~/

2. open your browser, eg, firefox, download all the files into ~/download, ie, /home/alex/download.

http://buildroot.uclibc.org/downloads/snap...napshot.tar.bz2 (http://buildroot.uclibc.org/downloads/snapshots/buildroot-snapshot.tar.bz2)

http://forum.niosforum.com/forum/index.php...type=post&id=60 (http://forum.niosforum.com/forum/index.php?act=attach&type=post&id=60)

ftp://linuxforum.net/ftp.gcc.gnu.org/rele...c-3.4.3.tar.bz2 (ftp://linuxforum.net/ftp.gcc.gnu.org/releases/gcc-3.4.3/gcc-3.4.3.tar.bz2)

http://uclibc.org/downloads/snapshots/ucli...napshot.tar.bz2 (http://uclibc.org/downloads/snapshots/uclibc-snapshot.tar.bz2)

http://busybox.net/downloads/snapshots/bus...napshot.tar.bz2 (http://busybox.net/downloads/snapshots/busybox-snapshot.tar.bz2)

3. open a terminal, the current dir will be your home dir, ~/

cd download

unzip configs.zip

cd ~

tar jxf download/buildroot-snapshot.tar.bz2

cd buildroot

ln -s ../download dl

make defconfig

cp dl/buildroot.config .config

make

If you have problem, send me,

ls ~/buildroot

ls ~/buildroot/build_nios2

ls ~/buildroot/build_nios2/staging_dir

ls ~/buildroot/toolchain_build_nios2

and the make error message.