From: Sebastian Huber <sebastian.huber@embedded-brains.de>
To: Joseph Myers <joseph@codesourcery.com>, Joel Sherrill <joel@rtems.org>
Cc: Newlib <newlib@sourceware.org>
Subject: Re: fenv support vs. SMP systems
Date: Tue, 14 Jul 2020 07:16:00 +0200 [thread overview]
Message-ID: <25280ca9-a9bb-5250-72c2-413e5cdf8fed@embedded-brains.de> (raw)
In-Reply-To: <alpine.DEB.2.21.2007131715560.20292@digraph.polyomino.org.uk>
On 13/07/2020 19:16, Joseph Myers wrote:
> On Mon, 13 Jul 2020, Joel Sherrill wrote:
>
>> It does use the term "system variable" but that doesn't scope it to
>> process or thread.
> C11 (the first version of ISO C to introduce threads) says "The
> floating-point environment has thread storage duration. The initial state
> for a thread’s floating-point environment is the current state of the
> floating-point environment of the thread that creates it at the time of
> creation.".
Thanks for the clarification. Now I remember that I added this
information to the RISC-V ABI description some time ago:
https://github.com/riscv/riscv-elf-psabi-doc/commit/bd8211964c20fbbc96fff743684f04e86732d1e5#diff-b74abb1c6b89ba2de7129c8fbae8bd11
prev parent reply other threads:[~2020-07-14 5:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-13 6:19 Sebastian Huber
2020-07-13 13:00 ` Joel Sherrill
2020-07-13 17:16 ` Joseph Myers
2020-07-13 21:03 ` Joel Sherrill
2020-07-14 5:16 ` Sebastian Huber [this message]
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