[uClibc]uclibc-cvs breaks busybox df command

[David Meggy]

Sure

I've cross compiled everything for arm-linux from a Debian 3.0 PC.
I'm using 

linux-2.4.18-rmk7 + patches for our boards
binutils 2.13 + a patch to resolve a linking problem on arm
uClibc-cvs-Aug.26-morning + patch for uClibc_config_fix.pl to add locale
gcc 3.2
busybox 0.60.3 	+ patch for virtual console and serial console to both
work
		+ patch for sys_errlist to strerror


uClibc was configured with 

${UCLIBC_PATH}/extra/Configs/ --arch=${TARGET_CPU} ${CROSSSTUFF}
--devel_prefix=${TARGET_PATH} --kernel_dir=${KERNEL_PATH}
--large_file=true --rpc_support=true --c99_math=true --float=true
--threads=true --shadow=true --ldso_path=/lib --has_locale=true
--mmu=true --shared_support=true --file=${UCLIBC_PATH}/Config~ >
${UCLIBC_PATH}/Config;


to cross compile locales I cross compiled the gen_mmap program, ran it
on an arm machine, and then transfered the output back to the PC, and
continued compiling.


$ arm-linux-ldd bin/busybox 
	libc.so.0 => /home/david/techsol/arm-cross-v0.9/lib/libc.so.0
	/lib/ld-uClibc.so.0 => /lib/ld-uClibc.so.0


BusyBox v0.60.3 (2002.08.27-00:09+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

# df -h
Filesystem                Size      Used Available Use% Mounted on
/dev/doc1                30.9M      7.2M     23.7M  23% /
/dev/doc1                30.9M      7.2M     23.7M  23% /
# df
Filesystem           1k-blocks      Used Available Use% Mounted on
pc : [<40031d48>]    lr : [<40031e04>]    Not tainted
sp : bffffd54  ip : 40031d28  fp : 40000000
r10: 00086484  r9 : 00000000  r8 : 00000001
r7 : bffffd6c  r6 : 00000000  r5 : 00000000  r4 : 00003dc5
r3 : 0000ffff  r2 : 00000490  r1 : bffffd6c  r0 : 00003dc5
Flags: NzCv  IRQs on  FIQs on  Mode USER_32  Segment user
Control: 217D  Table: 4033C015  DAC: 00000015
Segmentation fault
# 

Okay, that's interesting.  What does the -h option do?  Oh, and the
reason the root file system is mounted twice is because /etc/mtab is
getting screwed up when I boot the root as read-only, and I don't get
around to updating it.

I hope that is enough

Dave


On Tue, 2002-08-27 at 15:25, Erik Andersen wrote:
> On Tue Aug 27, 2002 at 01:21:10PM -0700, David Meggy wrote:
> > 
> > I haven't had a chance to look into this, but because of Erik's request
> > to test CVS I have tried rebuilding all my tools, and I noticed that
> > busybox's df command just gives a seg fault.
> > 
> > As I said I haven't looked into it, but it is something that should be
> > looked into before uClibc is released.
> 
> Thanks for the testing.  I just tried it and it works for me...  
> Can you provide some details?  Arch?  uClibc config?  busybox 
> version?
> 
> $ ldd ./busybox
>         libc.so.0 => /usr/i386-linux-uclibc/lib/libc.so.0 (0x0x40006000)
>         ld-uClibc.so.0 => /usr/i386-linux-uclibc/lib/ld-uClibc.so.0 (0x0x40000000)
> $ ./busybox df -h
> Filesystem                Size      Used Available Use% Mounted on
> /dev/hda2                75.0G     32.0G     39.9G  45% /
> 
>  -Erik
> 
> --
> Erik B. Andersen             http://codepoet-consulting.com/
> --This message was written using 73% post-consumer electrons--
-- 
~~~~~~~~~~~~~~~~~~~~~~~~
     David Meggy
     Engineering

Technical Solutions Inc.
Unit #1 7157 Honeyman St
Delta BC Canada, V4G 1E2
     www.techsol.ca

eMail: dmeggy at techsol.ca
Tel: 604 946 TECH (8324)
Fax: 604 946 6445
~~~~~~~~~~~~~~~~~~~~~~~~