[microblaze-uclinux] help with build of uCLinux for Xilinx XUP board, with EDK 7.1.1

[Kris Heyrman <christiaan.heyrman@xxxxxxxxx>]

Hi,

I just tried a build of uCLinux (recent CVS checkout, kernel 2.4.x, 
20050215 patches applied) for the Xilinx XUP board, with EDK 7.1.1.,
on a Linux Fedora Core 3 system.

1. Since the compiler is new (mb-gcc 3.4.1) a few little changes in 
source code were necessary:
   - in linux-2.4.x/include/asm-microblaze/unistd.h:
      #define SYSCALL_CLOBBERS "cc", "r4", "r11", "r14"
     since "r3" and "r12" are used for return value and syscall number,
     and mb-gcc 3.4.1 balks at this.
   - in user/busybox/modutils/insmod.c, I needed to
      #define __microblaze__
     which the compiler does not seem to do.
   - in user/net-tools/hostname.c, user/net-tools/lib/inet_sr.c and
     user/sysutils/ps.c there were some points where a label in a block
     without an instruction behind was not accepted, like
       {
        case 1: x++; break;
        case 2: y++; break;
        default:
       }

2. Had to
     mkdir -p romfs/lib/modules/2.4.29-uc1/kernel
    hope that was the intention.

3. Now my build is almost done, but it stops at:
     mb-flthdr -z /home/krish/edk/xup-uclinux/uclinux-src/uClinux-dist
       /romfs/bin/*
     Cannot read header of /home/krish/edk/xup-uclinux/uclinux-src/
       uClinux-dist/romfs/bin/[
     zflat /home/krish/edk/xup-uclinux/uclinux-src/uClinux-dist/romfs/bin
       agetty --> /home/krish/edk/xup-uclinux/uclinux-src/uClinux-dist/
       romfs/bin/agetty
      can't run cmd gzip -9 -f >> /tmp/flatF92eni
     Which gives me a sinking feeling.

Can anybody help me or give a hint?

Tx, Kris.

-- 
Kris Heyrman,  Hogeschool Gent, Belgium

The primary purpose of the DATA statement is to give names to constants;
instead of referring to pi as 3.141592653589793 at every appearance, the
variable PI can be given that value with a DATA statement and used instead
of the longer form of the constant.  This also simplifies modifying the
program, should the value of pi change.
                 -- FORTRAN manual for Xerox Computers

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