From: Rich Felker <dalias@aerifal.cx>
To: musl@lists.openwall.com
Subject: Re: TLS (thread-local storage) support
Date: Fri, 5 Oct 2012 13:27:29 -0400 [thread overview]
Message-ID: <20121005172729.GN254@brightrain.aerifal.cx> (raw)
In-Reply-To: <20121005030414.GM254@brightrain.aerifal.cx>
On Thu, Oct 04, 2012 at 11:04:14PM -0400, Rich Felker wrote:
> On Thu, Oct 04, 2012 at 05:13:32PM -0400, Rich Felker wrote:
> > Hi,
> >
> > I've committed the initial version of thread-local storage
> > (__thread/_Thread_local keyword). So far, it only works in
> > static-linked applications,
>
> Scratch that. It's now supported everywhere except dynamically loaded
> (dlopen'd) shared libraries. And I'm working on adding support for
And they're working now too.
I've also made some general fixes and improvements to the dynamic
linker -- minor corrections in how library files are located, and
support for recursive calls to dlopen (happens when a library has
constructors and one of those constructors calls dlopen). This same
change was also necessary to avoid blocking pthread_create calls for
the entire duration of constructor execution.
Some further dynamic linker development directions:
- Unifying the relocation code in arch/$(ARCH)/reloc.h to minimize
duplication.
- Adding dlsym() support for TLS vars (obtaining current thread's
copy).
- Cleanup and reduction of code duplication - phdr parsing and symbol
lookup logic is duplicated in several places.
And of course testing TLS on other archs and fixing anything that's
broken...
Rich
next prev parent reply other threads:[~2012-10-05 17:27 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-04 21:13 Rich Felker
2012-10-04 21:29 ` Daniel Cegiełka
2012-10-04 22:36 ` Rich Felker
2012-10-06 8:17 ` Daniel Cegiełka
2012-10-16 21:27 ` boris brezillon
2012-10-16 21:47 ` boris brezillon
2012-10-16 22:09 ` Szabolcs Nagy
2012-10-16 23:16 ` boris brezillon
2012-10-17 10:37 ` Szabolcs Nagy
2012-10-16 23:29 ` Rich Felker
2012-10-16 22:54 ` Rich Felker
2012-10-16 23:39 ` boris brezillon
2012-10-16 23:48 ` Rich Felker
2012-10-17 0:08 ` boris brezillon
2012-10-17 0:42 ` Rich Felker
2012-10-17 1:03 ` boris brezillon
2012-10-17 1:49 ` boris brezillon
2012-10-17 1:58 ` Rich Felker
2012-10-17 7:48 ` musl
2012-10-19 18:39 ` orc
2012-10-19 18:41 ` Rich Felker
2012-10-05 3:04 ` Rich Felker
2012-10-05 17:27 ` Rich Felker [this message]
2012-10-06 14:33 ` Szabolcs Nagy
2012-10-06 20:39 ` Szabolcs Nagy
2012-10-06 20:58 ` Rich Felker
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=20121005172729.GN254@brightrain.aerifal.cx \
--to=dalias@aerifal.cx \
--cc=musl@lists.openwall.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.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/musl/
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 NNTP newsgroup(s).