From: Simon Marchi <simark@simark.ca>
To: Florian Weimer <fweimer@redhat.com>, gdb@sourceware.org
Subject: Re: Getting offset of inital-exec TLS variables on GNU/Linux
Date: Fri, 17 May 2019 14:34:00 -0000 [thread overview]
Message-ID: <19f008ac-ffb7-5e15-ae6c-5fc00791c964@simark.ca> (raw)
In-Reply-To: <87o941pej8.fsf@oldenburg2.str.redhat.com>
On 2019-05-17 6:21 a.m., Florian Weimer wrote:
> Is it possible to obtain the offset of initial-exec TLS variable on
> GNU/Linux?
>
> It doesn't seem so because GDB executes the DWARF to access the TLS
> variable, so the offset is an implementation detail. Although it is
> often visible at the ELF layer.
>
> Thanks,
> Florian
Can you clarify a little bit?
You are looking for the offset the variable from which point of reference:
- The start of the TLS area of this module?
- The start of the TLS area of the current thread?
- Something else?
Also, are you looking for something you can find statically, with just the
executable, or are you working in the context of the live process?
Simon
next parent reply other threads:[~2019-05-17 14:08 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <87o941pej8.fsf@oldenburg2.str.redhat.com>
2019-05-17 14:34 ` Simon Marchi [this message]
2019-05-19 13:00 ` Florian Weimer
2019-05-23 15:55 ` Simon Marchi
2019-05-24 19:32 ` Florian Weimer
2019-05-24 20:12 ` Carlos O'Donell
2019-05-25 0:45 ` Florian Weimer
2019-05-25 22:35 ` Carlos O'Donell
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=19f008ac-ffb7-5e15-ae6c-5fc00791c964@simark.ca \
--to=simark@simark.ca \
--cc=fweimer@redhat.com \
--cc=gdb@sourceware.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