From: Frank Przybylski <Frank.Przybylski@vas-gmbh•de>
To: linuxppc-embedded@lists•linuxppc.org
Subject: Re: Getting the image section of the ELF file to load w/ VxWorks boot ROM
Date: Tue, 09 May 2000 12:04:23 +0200 [thread overview]
Message-ID: <3917E2A7.6EEDDD93@vas-gmbh.de> (raw)
In-Reply-To: m12mgPF-001SyZC@bucks
Hi,
I had similar problems when loading kernel images with gdb over BDM into
an MPC.
I have no solution (which would be a patch to the Makefile in
/usr/src/linux/arch/ppc/mbxboot) but I try to handle the symptons:
powerpc-linux-objcopy \
--set-section-flags=image=contents,alloc,load,readonly,data \
--adjust-section-vma=image=$(powerpc-linux-objdump -h
$kernel/zvmlinux | grep .bss | awk '{print "0x"$4}') \
$kernel/zvmlinux \
$kernel/zvmlinux2
The first command to objcopy is to set the 'load' flag for the image
section. Without this, gdb won't load this section.
The second is to patch the load address of that section to be the same
as the .bss section. I'm a little bit unsecure about the last, but it
seems to work. I think this is what the loader expects and I hope
someone can verify this?
hth
Frank
--
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Frank Przybylski,VAS GmbH,Gotenstr.6,20097
Hamburg,GERMANY,TEL:+49-40-238568-14
mailto:Frank.Przybylski@vas-gmbh•de , visit us at
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next prev parent reply other threads:[~2000-05-09 10:04 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-05-02 17:24 Getting the image section of the ELF file to load w/ VxWorks boot ROM diekema_jon
2000-05-03 8:07 ` Arto Vuori
2000-05-09 10:04 ` Frank Przybylski [this message]
2000-05-09 15:54 ` Daniel G. Clemmensen
2000-05-09 17:51 ` Getting the image section of the ELF file to load w/ VxWorks boot diekema_jon
2000-05-17 20:30 ` Getting the image section of the ELF file to load w/ VxWorks boot ROM Dan Malek
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