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Re: sysdeps/mach/hurd/profil.c (was: [PATCH] hurd: align -p and -pg beha

From: Samuel Thibault
Subject: Re: sysdeps/mach/hurd/profil.c (was: [PATCH] hurd: align -p and -pg behavior on Linux)
Date: Tue, 19 Apr 2016 00:56:29 +0200
User-agent: Mutt/1.5.21+34 (58baf7c9f32f) (2010-12-30)

Samuel Thibault, on Thu 25 Feb 2016 15:23:13 +0100, wrote:
> > As there are accesses to variables shared between different threads,
> > should these be re-written to use GCC's atomic/sync load/store builtins
> > with appropriate semantics?
> The current way seems unsafe at least between update_waiter and
> fetch_samples, indeed. I'd say just go with a libc_lock.

Actually there is already a spinlock to protect all of what I mentioned
:) I have fixed the remaining initialization issue.


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