All of lore.kernel.org
 help / color / mirror / Atom feed
From: Alexander Holler <holler@ahsoftware.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] OMAP3: relocation and bss usage (timer, gpmc, ...)
Date: Thu, 02 Dec 2010 15:56:34 +0100	[thread overview]
Message-ID: <4CF7B3A2.4080407@ahsoftware.de> (raw)
In-Reply-To: <30358424.post@talk.nabble.com>

Am 02.12.2010 14:33, schrieb zfsdk:
>
> Maybe in init sequens asm func, i used turn on led to check which func faild.
>

Using a LED for debugging is time consuming. And you won't see which 
code still uses BSS before relocation as such code does not have to fail 
(it still might work). I prefer reading source. Using JTAG should help 
too, but I think, using JTAG and a debugger might got somewhat harder, 
at least after the code got relocated.
Anyway, a JTAG-debugger could help a lot searching the stuff which 
currently goes wrong before relocation. I assume single stepping the few 
dozen lines which are executed before relocation could be done in a few 
hours and it should reveal most of the code which accesses BSS before 
relocation.

Regards,

Alexander

      reply	other threads:[~2010-12-02 14:56 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-30 16:28 [U-Boot] OMAP3: relocation and bss usage (timer, gpmc, ...) Alexander Holler
2010-11-30 18:21 ` Premi, Sanjeev
2010-11-30 22:59   ` Alexander Holler
2010-12-02 13:33     ` zfsdk
2010-12-02 14:56       ` Alexander Holler [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4CF7B3A2.4080407@ahsoftware.de \
    --to=holler@ahsoftware.de \
    --cc=u-boot@lists.denx.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.