From mboxrd@z Thu Jan  1 00:00:00 1970
X-Msuck: nntp://news.gmane.org/gmane.linux.lib.musl.general/2059
Path: news.gmane.org!not-for-mail
From: Szabolcs Nagy <nsz@port70.net>
Newsgroups: gmane.linux.lib.musl.general
Subject: Re: TLS (thread-local storage) support
Date: Sat, 6 Oct 2012 16:33:01 +0200
Message-ID: <20121006143300.GE24157@port70.net>
References: <20121004211332.GA12874@brightrain.aerifal.cx>
 <20121005030414.GM254@brightrain.aerifal.cx>
 <20121005172729.GN254@brightrain.aerifal.cx>
Reply-To: musl@lists.openwall.com
NNTP-Posting-Host: plane.gmane.org
Mime-Version: 1.0
Content-Type: multipart/mixed; boundary="rwEMma7ioTxnRzrJ"
X-Trace: ger.gmane.org 1349533994 24960 80.91.229.3 (6 Oct 2012 14:33:14 GMT)
X-Complaints-To: usenet@ger.gmane.org
NNTP-Posting-Date: Sat, 6 Oct 2012 14:33:14 +0000 (UTC)
To: musl@lists.openwall.com
Original-X-From: musl-return-2060-gllmg-musl=m.gmane.org@lists.openwall.com Sat Oct 06 16:33:19 2012
Return-path: <musl-return-2060-gllmg-musl=m.gmane.org@lists.openwall.com>
Envelope-to: gllmg-musl@plane.gmane.org
Original-Received: from mother.openwall.net ([195.42.179.200])
	by plane.gmane.org with smtp (Exim 4.69)
	(envelope-from <musl-return-2060-gllmg-musl=m.gmane.org@lists.openwall.com>)
	id 1TKVRO-0004SU-Tj
	for gllmg-musl@plane.gmane.org; Sat, 06 Oct 2012 16:33:19 +0200
Original-Received: (qmail 25720 invoked by uid 550); 6 Oct 2012 14:33:13 -0000
Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm
Precedence: bulk
List-Post: <mailto:musl@lists.openwall.com>
List-Help: <mailto:musl-help@lists.openwall.com>
List-Unsubscribe: <mailto:musl-unsubscribe@lists.openwall.com>
List-Subscribe: <mailto:musl-subscribe@lists.openwall.com>
Original-Received: (qmail 25688 invoked from network); 6 Oct 2012 14:33:12 -0000
Content-Disposition: inline
In-Reply-To: <20121005172729.GN254@brightrain.aerifal.cx>
User-Agent: Mutt/1.5.21 (2010-09-15)
Xref: news.gmane.org gmane.linux.lib.musl.general:2059
Archived-At: <http://permalink.gmane.org/gmane.linux.lib.musl.general/2059>


--rwEMma7ioTxnRzrJ
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

* Rich Felker <dalias@aerifal.cx> [2012-10-05 13:27:29 -0400]:
> On Thu, Oct 04, 2012 at 11:04:14PM -0400, Rich Felker wrote:
> > 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.
> 

should the attached code work with dlopen
when compiled as a dso?

(i wanted to check if the alignments are ok after a dlopen,
but i can see how this usage may not be supported)

it seems it dies here in the ctor

--rwEMma7ioTxnRzrJ
Content-Type: text/x-csrc; charset=us-ascii
Content-Disposition: attachment; filename="tls.c"

#include <stddef.h>

__thread char      c1 = 1;
__thread char      xchar = 2;
__thread char      c2 = 3;
__thread short     xshort = 4;
__thread char      c3 = 5;
__thread int       xint = 6;
__thread char      c4 = 7;
__thread long long xllong = 8;

struct {
	char *name;
	size_t size;
	size_t align;
	size_t addr;
} t[4];

#define entry(i,x) \
	t[i].name = #x; \
	t[i].size = sizeof x; \
	t[i].align = __alignof__(x); \
	t[i].addr = (size_t)&x;

__attribute__((constructor)) static void init(void)
{
	entry(0, xchar)
	entry(1, xshort)
	entry(2, xint)
	entry(3, xllong)
}


--rwEMma7ioTxnRzrJ--