From: "Metzger, Markus T" <markus.t.metzger@intel.com>
To: Pedro Alves <palves@redhat.com>, Alan Modra <amodra@gmail.com>
Cc: Mark Wielaard <mjw@redhat.com>,
Cary Coutant <ccoutant@google.com>, "Doug Evans" <dje@google.com>,
"gdb@sourceware.org" <gdb@sourceware.org>,
"binutils@sourceware.org" <binutils@sourceware.org>
Subject: RE: vdso handling
Date: Wed, 26 Mar 2014 09:32:00 -0000 [thread overview]
Message-ID: <A78C989F6D9628469189715575E55B230C143CE0@IRSMSX104.ger.corp.intel.com> (raw)
In-Reply-To: <532C60CA.6090008@redhat.com>
> -----Original Message-----
> From: Pedro Alves [mailto:palves@redhat.com]
> Sent: Friday, March 21, 2014 4:55 PM
> >> If we can't trust the image to contain everything that the ELF header
> >> describes, would it be safer to generate fake sections based on the
> >> program header? We already assume that the program header is
> >> contained in the image.
> >
> > Yes, you're correct that it is wrong to assume program headers are
> > loaded. Even worse, the in-memory image doesn't even need to contain
> > the ELF file header.
>
> Yeah, and I was just assuming it didn't, hence my "just trust the
> headers" push before.
>
> I'm now thinking that we'll need pseudo-sections from program
> headers anyway, so I'd suggest going in that direction, leaving
> the add-symbol-file-from-memory command's intention generic,
> and leave revisiting how gdb retrieves the vdso itself off of
> memory for another day.
That would be something like the patch in one of the previous emails
in this thread: https://sourceware.org/ml/gdb/2014-03/msg00028.html,
wouldn't it?
Alan, would you be OK with this, as well?
Thanks,
Markus.
Intel GmbH
Dornacher Strasse 1
85622 Feldkirchen/Muenchen, Deutschland
Sitz der Gesellschaft: Feldkirchen bei Muenchen
Geschaeftsfuehrer: Christian Lamprechter, Hannes Schwaderer, Douglas Lusk
Registergericht: Muenchen HRB 47456
Ust.-IdNr./VAT Registration No.: DE129385895
Citibank Frankfurt a.M. (BLZ 502 109 00) 600119052
next prev parent reply other threads:[~2014-03-26 9:32 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-10 13:05 Metzger, Markus T
2014-03-12 7:17 ` Alan Modra
2014-03-12 11:31 ` Mike Frysinger
2014-03-12 17:34 ` Doug Evans
2014-03-12 20:23 ` Cary Coutant
2014-03-13 1:01 ` Alan Modra
2014-03-13 8:25 ` Metzger, Markus T
2014-03-13 9:48 ` Metzger, Markus T
2014-03-13 10:07 ` Pedro Alves
2014-03-13 10:46 ` Pedro Alves
2014-06-01 23:45 ` Samuel Bronson
2014-06-06 12:45 ` Pedro Alves
2014-03-13 13:13 ` Alan Modra
2014-03-13 9:52 ` Mark Wielaard
2014-03-13 13:03 ` Alan Modra
2014-03-13 14:38 ` Mark Wielaard
2014-03-13 14:59 ` Pedro Alves
2014-03-13 15:04 ` Pedro Alves
2014-03-13 15:26 ` Pedro Alves
2014-03-13 23:53 ` Alan Modra
2014-03-18 15:14 ` Metzger, Markus T
2014-03-18 23:10 ` Alan Modra
2014-03-19 8:11 ` Metzger, Markus T
2014-03-19 8:31 ` Metzger, Markus T
2014-03-19 12:04 ` Pedro Alves
2014-03-20 2:00 ` Alan Modra
2014-03-21 15:55 ` Pedro Alves
2014-03-26 9:32 ` Metzger, Markus T [this message]
2014-03-19 12:03 ` Pedro Alves
2014-03-20 1:33 ` Alan Modra
2014-03-21 8:10 ` Metzger, Markus T
2014-03-21 15:48 ` Pedro Alves
2014-03-28 6:13 ` Alan Modra
2014-03-28 13:38 ` Pedro Alves
2014-03-28 23:00 ` Alan Modra
2014-04-01 13:46 ` Pedro Alves
2014-04-02 1:50 ` Alan Modra
2014-04-02 8:05 ` Metzger, Markus T
2014-04-02 8:04 ` Hans-Peter Nilsson
2014-04-03 1:06 ` Alan Modra
2014-04-03 1:46 ` Alan Modra
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=A78C989F6D9628469189715575E55B230C143CE0@IRSMSX104.ger.corp.intel.com \
--to=markus.t.metzger@intel.com \
--cc=amodra@gmail.com \
--cc=binutils@sourceware.org \
--cc=ccoutant@google.com \
--cc=dje@google.com \
--cc=gdb@sourceware.org \
--cc=mjw@redhat.com \
--cc=palves@redhat.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 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 read-only IMAP folder(s) and NNTP newsgroup(s).