From: Paul Brook <paul@codesourcery.com>
To: Goswin von Brederlow <goswin-v-b@web.de>
Cc: Stefan Hajnoczi <stefanha@gmail.com>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Support for multiboot images in elf64 (EM_X86_64) format
Date: Thu, 9 Feb 2012 16:01:50 +0000 [thread overview]
Message-ID: <201202091601.51141.paul@codesourcery.com> (raw)
In-Reply-To: <87zkcsnhit.fsf@frosties.localnet>
> > "objcopy -I elf64-x86-64 -O elf32-i386 64.elf 32.elf" worked for me.
> > Relocations get a bit confused, but you shouldn't have relocations in
> > your multiboot images to start with.
>
> Why no relocations? Isn't exactly that the advantage of building an elf
> image, that you can build a relocatable image?
In this context I'd say no. The advantage of an ELF image is that it allows
you to specify the entry point and load address. It also allows you to have
multiple discontiguous data sections, which is often helpful.
If you want to relocate images you need a dynamic loader capable of doing that
relocation. The qemu loader is about the dumbest static loader possible.
Paul
prev parent reply other threads:[~2012-02-09 16:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-04 17:38 [Qemu-devel] Support for multiboot images in elf64 (EM_X86_64) format Goswin von Brederlow
2012-02-06 12:38 ` Stefan Hajnoczi
2012-02-08 9:53 ` Goswin von Brederlow
2012-02-08 11:30 ` Kevin Wolf
2012-02-08 12:06 ` Stefan Hajnoczi
2012-02-09 0:35 ` Paul Brook
2012-02-09 13:07 ` Goswin von Brederlow
2012-02-09 13:36 ` Paul Brook
2012-02-09 15:38 ` Goswin von Brederlow
2012-02-09 16:01 ` Paul Brook [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=201202091601.51141.paul@codesourcery.com \
--to=paul@codesourcery.com \
--cc=goswin-v-b@web.de \
--cc=qemu-devel@nongnu.org \
--cc=stefanha@gmail.com \
/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.