[U-Boot-Users] help: images in example directory are invalid

[Benjamin Collar]

Hi Nicholas,

I've written to the u-boot this about this question, but thought I would
write to you as well. u-boot is supposed to build valid stand-alone
applications, and I do indeed get .srec stuff in the examples directory.
(We did get past the loads problem, btw). However, these srecs are not
valid images.  (We also confirmed that what we're writing into ram and
flash are actually being written -- the data dump shows the same data as
we see with objdump).

After I loads the hello_world app, I check it with iminfo and get:
"bad magic number". 

Using mkimage -l hello_world.srec, I get 'Bad Magic Number:
"hello_world.srec" is no valid image' I get the same result for
hello_world (the elf format).

Using powerpc-linux-objdump -fs hello_world.srec, I see:

hello_world.srec:     file format srec
architecture: UNKNOWN!, flags 0x00000000:

start address 0x00040004

Contents of section .sec1:
 40000 000182b0 9421ffd8 7c0802a6 429f0005  .....!..|...B...
 40010 bf610014 7fc802a6 9001002c 801efff0  .a.........,....
 40020 7c7c1b78 7fc0f214 7c832378 7c9b2378  ||.x....|.#x|.#x


Indeed, the first numbers there are not the magic number from image.h:
0x27051956. We tried to load a kernel, just for kicks (just because
we're hopeful folk), but of course got the same result.

Do you have any idea how I'm doing this wrong? Why is u-boot creating
invalid stand-alone images?

Thanks
Ben

-- 
Benjamin Collar
Siemens AG
CT SE 2
Embedded Linux
089-636-53711