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Re: [PATCH] Fix quick_exit to match C++11 specification.
- From: Florian Weimer <fweimer at redhat dot com>
- To: "Carlos O'Donell" <carlos at redhat dot com>, Adhemerval Zanella <adhemerval dot zanella at linaro dot org>, GNU C Library <libc-alpha at sourceware dot org>
- Cc: Johan Karlsson <johan dot karlsson at enea dot com>
- Date: Tue, 7 Jun 2016 15:48:19 +0200
- Subject: Re: [PATCH] Fix quick_exit to match C++11 specification.
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On 06/07/2016 03:17 PM, Carlos O'Donell wrote:
I also do not see compelling reason to provide a compat symbol this
specific issue. The destruction handles are registered only with
__cxa_thread_atexit_impl and it is used only for thread_local on
C++. And C++ definition on quick_exit stated that it does not
run the TLS destructors, so a program that relies on it is just
expecting a non-conforming implementation behaviour.
The problem is that we've had a quick_exit that runs thread local
destructors since glibc 2.10 (2009),
How so? You only changed behavior for the 2.18 TLS dtor support added here:
Author: Siddhesh Poyarekar <email@example.com>
Date: Mon Feb 18 19:08:21 2013 +0530
C++11 thread_local destructors support
I don't see how your change makes a different for the libstdc++
What am I missing?