[openrisc] Another Newbie, OpenRISC, Or1ksim and Linux

[xpli_79@yahoo.com]

Hi Marko,
I also downloaded the latest Or1ksim and tried to build it under RedHat 
Linux 7.2. However, at the end of make, it showed message something 
like "the clock-skew is detected and the build may be incomplete". 
Please tell me what's wrong with this. Also, I am confused with the 
argument "--target=xxxxx" for the "./configure" command since different 
places have different says, e.g., the README file under or1ksim uses "--
target=or32-rtems", and somewhere else says "--target=or32". Is there 
any difference between them?

----- Original Message ----- 
From: "Marko Mlinar" <markom@o... > 
To: <openrisc@o... > 
Date: Thu, 7 Mar 2002 08:30:52 +0100 
Subject: Re: [openrisc] Newbie, OpenRISC, Or1ksim and Linux 

> 
> 
> > Cool.  It runs well now. 
> great. 
> 
> > > > I also metioned Linux in the topic.  I saw the Linux 
> port on the 
> website 
> > > 
> > > and 
> > > 
> > > > thought that it would be a cool think to help out 
> on. 
> > > > 
> > > > Is there anything I can help with? 
> > > 
> > > Actually we have uCLinux, which is very similar. It is 
> now running 
> > > Microwindows 
> > > and if you can play tetris or minesweeper on the or1ksim 
> :) 
> > 
> > Hehe, cool.  I'll have a look at uCLinux tomorrow.  How 
> similar is it to 
> > linux? 
> actually it is quite the same, except it does not have mmu and is a 
> bit 
> smaller. 
> When building microwindows and compiler toolchain, you the 
> instructions 
> below 
> might be helpful. They are preliminary and not yet tested. We will 
> test it 
> and 
> publish it to the website soon. 
> Microwindows can be downloaded, using cvs -z9 co or1k/mw. And 
maybe 
> you 
> will need to update config file there also. 
> 
> good luck, 
> Marko 
> 
> ************ instructions how to build uclinux & uclibc 
> toolchain ********* 
> mkdir /tmp/tools 
> cd /tmp/tools 
> mkdir or32-uclinux 
> export PATH=/tmp/tools/or32-uclinux/bin:$PATH 
> 
> # 
> # Binutils: 
> # 
> 
> cvs -z9 co or1k/binutils 
> cd or1k 
> mkdir binutils-ucl 
> cd binutils-ucl 
> ../binutils/configure --target=or32-uclinux 
> --prefix=/tmp/tools/or32-uclinux 
> make all install 
> cd ../../ 
> 
> # 
> # Gcc 
> # 
> 
> cvs -z9 co or1k/gcc-3.1 
> cd or1k 
> mkdir gcc-ucl 
> cd gcc-ucl 
> ../gcc-3.1/configure --target=or32-uclinux 
> --prefix=/tmp/tools/or32-uclinux/ 
>  --local-prefix=/tmp/tools/or32-uclinux/or32-uclinux/ --with-gnu-as 
> --with-g 
> nu-ld --verbose --enable-languages=c 
> make all install 
> cd ../../ 
> 
> # 
> # uClinux 
> # 
> 
> cvs -z9 co or1k/uclinux 
> cd or1k/uclinux/uClinux-2.0.x/ 
> make oldconfig 
> make dep 
> make 
> cd ../../../ 
> 
> # 
> # uClibc 
> # 
> 
> cvs -z9 co or1k/uclibc 
> cd or1k/uclibc 
> # Edit Config file: 
> #   TARGET_ARCH=or32 
> #   CROSS = $(TARGET_ARCH)-uclinux- 
> #   KERNEL_SOURCE=/tmp/tools/or1k/uclinux/uClinux-2.0.x/ 
> #   DEVEL_PREFIX = /tmp/tools/$(TARGET_ARCH)-uclinux 
> make all install 
> cd ../../or32-uclinux/bin 
> rm -f addr2line ar as cc cpp gasp gcc ld nm objcopy objdump ranlib 
> size 
> strings strip jar grepjar 
> cd .. 
> 
> # 
> # Rebuild Gcc 
> # 
> cd or1k/gcc-ucl 
> ../gcc-3.1/configure --target=or32-uclinux 
> --prefix=/tmp/tools/or32-uclinux/ 
>  --local-prefix=/tmp/tools/or32-uclinux/or32-uclinux/ --with-gnu-as 
> --with-g 
> nu-ld --verbose --enable-languages=c 
> make all install 
> cd ../../ 
> 
> # 
> # Sash 
> # 
> cd or1k/uclinux/userland/sash 
> make 
> 
> # 
> # Generating ramdisk image 
> # 
> mkdir romfs 
> mkdir romfs/bin 
> cp  or1k/uclinux/userland/sash/sh romfs/bin/sash 
> chmod 777 romfs/bin/sash 
> mkdir romfs/dev 
> cd romfs/dev 
> mknod ram0 1 0 
> mknod tty 4 0 
> mknod tty1 4 1 
> mknod ttyS0 4 64 
> cd .. 
> genromfs -f ../or1k/uclinux/uClinux-2.0.x/arch/or32/board/initrd 
> cd .. 
> 
> # 
> # Rebuilding uClinux 
> # 
> cd or1k/uclinux/uClinux-2.0.x/ 
> make 
> cd ../../../ 
> 
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