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Message-ID: <20150920172237.GR12087@example.net>
Date: Sun, 20 Sep 2015 19:22:37 +0200
From: u-wsnj@...ey.se
To: musl@...ts.openwall.com
Subject: Re: pthread_getattr_np() vs explicit runtime loader
On Sun, Sep 20, 2015 at 12:34:05PM -0400, Rich Felker wrote:
> On Sun, Sep 20, 2015 at 08:39:09AM +0200, u-wsnj@...ey.se wrote:
> > Would you comment on whether this guess is correct and hopefully make
> > pthread_getattr_np() work even with the explicit loader?
>
> I reviewed the code and there are no assumptions about how the program
> is loaded made there. And the original test program I used to test
> pthread_getattr_np runs fine both normally and with an explicit loader
> command. So I think the actual problem must be elsewhere, likely in
> whatever the application is doing right after pthread_getattr_np.
Thanks for checking, sorry that the hypothesis seems to be wrong.
May I run a test with that program of yours?
> What triggered the crash to start happening? Upgrading musl? Upgrading
It is the behaviour of gcc 5. This was the case when I built 5.1.0 but
5.2.0 was supposed to be more compatible with musl, so I did not research
5.1.0. Now gcc 5.2.0 behaves identically in this respect.
> gcc? Have you used gdb to get a backtrace and see where the program
> actually crashes?
Not yet, going to. Rebuilding gcc with '-g', this takes some time.
Rune
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