So I was able to build my first 2.6 kernel using all the defaults - just
setting freescale and mcf5282lite.
When I download the image and then do a go 0x10000 all I get is a bit of
jibberish as if the image is corrupt.
Do I need to convert the image to a different format first?
THanks,
Greg
On Feb 26, 2010, at 1:22 PM, Greg Hulands wrote:
> Looks like I needed to use uC-libc, not glibc (oops!) or uClibc.
>
> What is the difference between uC-libc and uClibc?
>
> Cheers,
> Greg
>
> On Feb 26, 2010, at 12:55 PM, Greg Hulands wrote:
>
>> Thanks Dan,
>> That helped tremendously. When building the kernel, I now see this error
>>
>> m68k-uclinux-gcc -m5307 -DCONFIG_COLDFIRE ../sysdeps/wordsize-32/divdi3.c -c
>> -std=gnu99 -DEMBED -D__linux__ -D__uClinux__ -Dlinux -Dunix -O2 -Wall
>> -Winline -Wstrict-prototypes -Wwrite-strings -fgnu89-inline -g -msep-data
>> -pipe -fpic -g0 -O99 -fomit-frame-pointer -D__USE_STRING_INLINES
>> -I../include -I. -I/home/ghulands/uClinux-dist/glibc/build/csu -I..
>> -I../libio -I/home/ghulands/uClinux-dist/glibc/build -I../sysdeps/m68k/elf
>> -I../libidn/sysdeps/unix -I../linuxthreads/sysdeps/unix/sysv/linux/m68k
>> -I../linuxthreads/sysdeps/unix/sysv/linux -I../linuxthreads/sysdeps/pthread
>> -I../sysdeps/pthread -I../linuxthreads/sysdeps/unix/sysv
>> -I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/m68k
>> -I../sysdeps/unix/sysv/linux/m68k -I../sysdeps/unix/sysv/linux
>> -I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman
>> -I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix
>> -I../sysdeps/posix -I../sysdeps/m68k/m68020 -I../sysdeps/m68k/fpu
>> -I../sysdeps/m68k -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/ldbl-96
>> -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754
>> -I../sysdeps/generic/elf -I../sysdeps/generic -nostdinc -isystem
>> /usr/local/lib/gcc/m68k-uclinux/4.2.4/include -isystem
>> /home/ghulands/uClinux-dist/include -D_LIBC_REENTRANT -include
>> ../include/libc-symbols.h -DPIC -DSHARED -DHAVE_INITFINI -o
>> /home/ghulands/uClinux-dist/glibc/build/csu/divdi3.os -MD -MP -MF
>> /home/ghulands/uClinux-dist/glibc/build/csu/divdi3.os.dt -MT
>> /home/ghulands/uClinux-dist/glibc/build/csu/divdi3.os
>> ../sysdeps/wordsize-32/divdi3.c: In function '__moddi3':
>> ../sysdeps/wordsize-32/divdi3.c:312: warning: pointer targets in passing
>> argument 3 of '__udivmoddi4' differ in signedness
>> {standard input}: Assembler messages:
>> {standard input}:430: Error: invalid instruction for this architecture;
>> needs 68000 or higher (68000 [68ec000, 68hc000, 68hc001, 68008, 68302,
>> 68306, 68307, 68322, 68356], 68010, 68020 [68k, 68ec020], 68030 [68ec030],
>> 68040 [68ec040], 68060 [68ec060], cpu32 [68330, 68331, 68332, 68333, 68334,
>> 68336, 68340, 68341, 68349, 68360], fidoa [fido]) -- statement `eor.w
>> %d0,%d0' ignored
>> make[6]: *** [/home/ghulands/uClinux-dist/glibc/build/csu/divdi3.os] Error 1
>>
>>
>> is there a cflag I need to pass into make?
>>
>> Thanks,
>> Greg
>>
>> On Feb 26, 2010, at 9:52 AM, Dan Snyder wrote:
>>
>>> Greg -
>>>
>>> I'm not sure why this is not posted on the web site, but Greg Ungerer
>>> posted the following links on 8/19/2009:
>>>
>>> http://www.uclinux.org/pub/uClinux/m68k-elf-tools/m68k-uclinux-tools-20080626.sh
>>>
>>> Source here:
>>>
>>> http://www.uclinux.org/pub/uClinux/m68k-elf-tools/tools-20080626/
>>>
>>> Using this version should solve both of the problems you reported.
>>>
>>> - Dan
>>>
>>>
>>> -----Original Message-----
>>> From: uclinux-dev-boun...@uclinux.org
>>> [mailto:uclinux-dev-boun...@uclinux.org] On Behalf Of Gregory Hulands
>>> Sent: Thursday, February 25, 2010 8:32 PM
>>> To: uclinux-dev@uclinux.org
>>> Subject: [uClinux-dev] First timer
>>>
>>> Hi,
>>> I've got a MCF5282 LITE board that I am wanting to teach myself embedded
>>> programming on. I've been following the steps here to setup the toolchain
>>> (http://www.uclinux.org/get_started/uClinuxbeginner.html). All of the
>>> versions of the versions of the tools I've tried to install have complained
>>> that it isn't a valid bzip2 archive, except for the
>>> m68k-uclinux-tools-20061214.sh one. I installed it and went to build the
>>> kernel after configuring it, but I get the following error:
>>>
>>> In file included from include/linux/compiler-gcc.h:86,
>>> from include/linux/compiler.h:40,
>>> from include/linux/stddef.h:4,
>>> from include/linux/posix_types.h:4,
>>> from include/linux/types.h:11,
>>> from include/linux/page-flags.h:8,
>>> from kernel/bounds.c:9:
>>> include/linux/compiler-gcc4.h:7:3: error: #error Your version of gcc
>>> miscompiles the __weak directive
>>> make[2]: *** [kernel/bounds.s] Error 1
>>> make[1]: *** [prepare0] Error 2
>>> make[1]: Leaving directory `/home/ghulands/uClinux-dist/linux-2.6.x'
>>> make: *** [linux] Error 1
>>>
>>> Can anyone offer any suggestions on what I have done wrong?
>>>
>>> Thanks,
>>> Greg
>>>
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