From: "Jon Ringle" <JRingle@vertical.com>
To: "Jim Blandy" <jimb@codesourcery.com>, "Jon Ringle" <jon@ringle.org>
Cc: <gdb@sourceware.org>
Subject: RE: No line number info debugging kernel modules with gdb 6.6.90.20070926-cvs (gdb 6.7 branch)
Date: Tue, 02 Oct 2007 22:54:00 -0000 [thread overview]
Message-ID: <4DD3AF7ECBBC43409BA36508938D01851B00FD@CVAEX1.VERTICAL.COM> (raw)
In-Reply-To: <m31wcdxknh.fsf@codesourcery.com>
Jim Blandy wrote:
> Well, I'm pretty confused.
>
> For starters, the output from 'maint print symbols' includes a line
> 325, but the output from 'readelf -wil' shows no such line.
>
> Then, GDB has set the breakpoint on vert_dst_nopage_mmap at
> 0xbf1342b4, but 'maint print symbols' says that function's block
> covers the addresses 0xbf13434c..0xbf1343b4, which doesn't cover the
> breakpoint's address.
The output that I got from 'maint print symbols' and the output from
'readelf -wil' were from two different runs and I think I may have
inserted some code between these two runs that may explain this
inconsistency. I can do get you fresh output of all of it if you'd like.
>
> The more inconsistencies you find, the more information you have about
> the bug, I guess, but I can't see the unifying story here.
>
> One last thing: John, could you 'set debug remote 1' before connecting
> to your target, and see if it's sending a 'qOffsets' packet? If it
> does, then that gets applied to symfile_objfile, which in your case
> would have been dstdrv.ko. But I'd expect any qOffsets received from
> the kernel to be meant for vmlinux; the remote stub has no idea you've
> loaded dstdrv.ko.
Will do this tonight.
>
> If that's what's going on, then it might help to connect to the target
> before doing the add-symbol-file.
Ok
next prev parent reply other threads:[~2007-10-02 22:54 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-27 20:11 Jon Ringle
2007-09-28 0:25 ` Jim Blandy
2007-09-28 3:47 ` Jon Ringle
2007-09-28 13:47 ` Jon Ringle
2007-09-28 16:01 ` Jon Ringle
2007-09-28 21:32 ` Jim Blandy
2007-09-28 22:06 ` ringlej
2007-09-29 0:27 ` Jim Blandy
2007-09-29 0:27 ` Daniel Jacobowitz
2007-09-29 2:06 ` Jon Ringle
2007-09-29 2:27 ` Daniel Jacobowitz
2007-09-29 7:38 ` Jon Ringle
2007-10-02 21:38 ` Jim Blandy
2007-10-02 22:54 ` Jon Ringle [this message]
2007-10-02 20:26 ` Jim Blandy
2007-10-02 20:43 ` Daniel Jacobowitz
2007-09-29 1:28 ` Jon Ringle
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