Executing ELF file with U-Boot

[SAeeD]

Merci Pierre.
That's exactly what I was looking for.
But I have one little question:
I read the man page for *mkimage* but didn't get the usage of -d option and
what I should give to it.
I used to make image with following command:
*sudo mkimage -A arm -O rtems -T kernel -C gzip -a 0x30000000 -e 0x30000000
-n hello-img -d hello.exe hello.exe*
After doing this, I wasn't able to dump my ELF file (hello.exe) with *
readelf* command any more. But this wasn't any problem as when I loaded
image to QEMU for Mini2440, it was detected by *iminfo* command from
U-Boot. I got the output:

## Checking Image at 30000000 ...
   Legacy image found
   Image Name:   hello-img
   Created:      2012-07-17   8:50:04 UTC
   Image Type:   ARM RTEMS Kernel Image (gzip compressed)
   Data Size:    1872721 Bytes =  1.8 MB
   Load Address: 30000000
   Entry Point:  30000000
   Verifying Checksum ... OK

But when I executed bootm command, I got the following error followed by
board restart:

*MINI2440 # bootm*
## Booting kernel from Legacy Image at 30000000 ...
   Image Name:   hello-img
   Created:      2012-07-17   8:50:04 UTC
   Image Type:   ARM RTEMS Kernel Image (gzip compressed)
   Data Size:    1872721 Bytes =  1.8 MB
   Load Address: 30000000
   Entry Point:  30000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... Error: Bad gzipped data
GUNZIP: uncompress or overwrite error - must RESET board to recover

I guess my problem is the value I enter after -d option when using *mkimage*.
What's your idea?

Thanks in advance
SAeeD

On Mon, Jul 16, 2012 at 1:09 PM, Pierre Ficheux
<pierre.ficheux at openwide.fr>wrote:

> Le 15/07/2012 22:18, SAeeD a écrit :
>
>  Hello everyone,
>>
>> I have already booted hello.exe from sample applications by GRUB on an
>> i386 machine. (As you know, hello.exe is in ELF format.)
>> But I am unable to boot it via U-Boot on Mini2440. I guess it is
>> platform independent and it must be some problem either with U-Boot or
>> my link script for RTEMS.
>> I use tftp to transfer hello.exe on RAM and then use go 0x30000000 to
>> execute it. I also tried 0x30000060, 0x30000100, and 0x30000160 but none
>> of them working.
>> This is while I can execute hello.bin. (achieved by using
>> arm-rtems4.10-objcopy command)
>> Has any one have any experience of booting or running ELF files with
>> U-Boot, specially when that ELF file is related to RTEMS?
>>
>>
>
> Be careful as mini2440 console is 38400 bps, but works fine for me.
>
>
> MINI2440 # setenv baudrate 38400
> ## Switch baudrate to 38400 bps and press ENTER ...
>
> MINI2440 # tftp 32000000 hello.img
> dm9000 i/o: 0x20000300, id: 0x90000a46
> DM9000: running in 16 bit mode
> MAC: 08:08:11:18:12:27
> TFTP from server 10.5.20.63; our IP address is 10.5.20.64
> Filename 'hello.img'.
> Load address: 0x32000000
> Loading: * ##########
> done
> Bytes transferred = 134868 (20ed4 hex)
> MINI2440 # bootm
> ## Booting kernel from Legacy Image at 32000000 ...
>    Image Name:   RTEMS Application
>    Created:      2012-07-16   8:16:18 UTC
>    Image Type:   ARM RTEMS Kernel Image (uncompressed)
>    Data Size:    134804 Bytes = 131.6 kB
>    Load Address: 30000100
>    Entry Point:  30000100
>    Verifying Checksum ... OK
>    Loading Kernel Image ... OK
> OK
> ## Transferring control to RTEMS (at address 30000100) ...
>
>
> *** HELLO WORLD TEST ***
> Hello World
> *** END OF HELLO WORLD TEST ***
>
>
> EXECUTIVE SHUTDOWN! Any key to reboot...bsp_reset....
>
>
>
> regards
>
>
> --
> Pierre FICHEUX  -/- CTO OWI, France -\- pierre.ficheux at openwide.fr
>
>                                          http://ingenierie.openwide.fr
>                                          http://www.ficheux.org
> I would love to change the world, but they won't give me the source code
>
>
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