From: LiuTao <tliu@ict.ac.cn>
To: "linuxppc-embedded@lists.linuxppc.org"
<linuxppc-embedded@lists.linuxppc.org>
Subject: the problem of booting kernel
Date: Thu, 06 Jan 2000 17:34:46 +0800 [thread overview]
Message-ID: <387461B6.FDB5DB5C@ict.ac.cn> (raw)
Hi all:
I am porting Linux to a board which has MPC860MH50, 16M RAM and 2M
Flash.
I am using visionPROBE(emulator of EST) to debug my program.
I download the zImage to the board by emulator, then run it.
I can see the following:
loaded at: 00800000 0080B1C8
board data at: 00800158 00800180
relocated to: 007F0100 007F0128
zimage at: 00830263 0088A2B1
avail ram: 0088B000 01000000
Linux/PPC load:
Uncompressing Linux...done.
Now booting the kernel
Now, I find that the program stoped at 0x111C.
So I set a breakpoint at "blr" in head.S at which the program will jump
to the kernel. I ran the program again, it stoped at the breakpoint.
Then I ran it step by step, I found that it jumped to 0x0000000C, I
think
that's the correct address. Then, I ran it continuously, it stopped at
0x111C again.
That's very strange. If I don't set breakpoint at "blr" but set a
breakpoint
at 0x000C, the program can't stop at the breakpoint but stop at 0x111C.
If I
set breakpoint at "blr" and run it step by step, the program can get
0x000C.
Do you have any suggestions?
Thanks!
LiuTao
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
reply other threads:[~2000-01-06 9:34 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=387461B6.FDB5DB5C@ict.ac.cn \
--to=tliu@ict.ac.cn \
--cc=linuxppc-embedded@lists.linuxppc.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).