minor changes brings system to hang
Hello list,
I have a strange behaviour when I try to modify my u-boot image (u-boot-1.1.0). The same results with u-boot-1.1.1.
I use a ARM9 of NetSilicon, uclibc toolchain.
When I modify e.g. CONFIG_BOOTCOMMAND or add a define in my config file u-boot hangs booting. Maybe I'm blind and don't see what I have forgotten...
I disassembled the working and a not working version and compared them. They looked completely different - about 800 differences - although I deleted only two characters in the CONFIG_BOOTCOMMAND string.
What catched my eye were the start, bss_start and bss_end addresses. Here the output of the working image:
00f80044 <_armboot_start>:
f80044: 00f80000 rsceqs r0, r8, r0
00f80048 <_bss_start>:
f80048: 00f9e308 rsceqs lr, r9, r8, lsl #6
00f8004c <_bss_end>:
f8004c: 00fa2784 rsceqs r2, sl, r4, lsl #15
and the output of the damaged one00f80044 <_armboot_start>:
f80044: 00f80000 rsceqs r0, r8, r0
00f80048 <_bss_start>:
f80048: 00f9e300 rsceqs lr, r9, r0, lsl #6
00f8004c <_bss_end>:
f8004c: 00fa277c rsceqs r2, sl, ip, ror r7
The output fragment I get when u-boot boots is
ot code: 00F80000 -> 00F9E308 BSS: -> 00FA2784
Stack: 0badc0de Stack: 0badc0de
Configuration:
#0: 00000000 16 MB?
The bss_start and bss_end addresses do not correspond to the addresses of the disassembled image.
Any suggestions?
Thanks for your help,
--
Jonas Dietsche
Quoted 1 line
I use a ARM9 of NetSilicon, uclibc toolchain.
Ah, have you been able to use a uclibc toolchain to compile u-boot? I tried (briefly) with a 3.4 based toolchain (uclibc) and it fails at the end. But maybe you're not using a 3.4 compiler?
I currently use the ELDK compiler to compile u-boot and the uclibc toolchain to compile the rest (kernel, rootfs and userspace utils).
Signature · 12 lines
greetz, marc This will work, trust me. We just have to find a place to get our clothes off. Crichton - Liars, Guns and Money - A Not So Simple Plan scorpius 2.6.9 #1 Wed Oct 20 20:12:27 CEST 2004 GNU/Linux -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: Digital signature Url : http://lists.denx.de/pipermail/u-boot/attachments/20041221/e8b24625/attachment.pgp
Quoted 1 line
end. But maybe you're not using a 3.4 compiler?
No, it's version 3.3.3...
Regards,
--
Jonas Dietsche