From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH v2] toolchain: Enable Glibc for all little-endian ARCs with atomic ops
Date: Fri, 9 Nov 2018 22:03:25 +0100 [thread overview]
Message-ID: <20181109220325.31584b18@windsurf> (raw)
In-Reply-To: <20181109200949.5170-1-abrodkin@synopsys.com>
Hello,
On Fri, 9 Nov 2018 23:09:49 +0300, Alexey Brodkin wrote:
> Initially we had a port only for ARCv2 cores but
> then with a simple change ARCompact cores got supported as well.
>
> So we generalize from BR2_archs to BR2_arcle as we haven't tried
> to get glibc working on big-endian ARCs yet.
>
> Also we never bothered to check avaialbility of atomic
> instructions in the core but in case of Glibc for ARC this is
> really a must, so we add this check here.
>
> Note in case of uClibc we may have system w/o HW atomics but:
> 1. Only single-core systems are allowed
> 2. Atomic instructions are emulated via arc_usr_cmpxchg syscall
>
> Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
> Cc: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
> Cc: Peter Korsgaard <peter@korsgaard.com>
> ---
Applied to master, thanks.
Thomas
--
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
prev parent reply other threads:[~2018-11-09 21:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-09 20:09 [Buildroot] [PATCH v2] toolchain: Enable Glibc for all little-endian ARCs with atomic ops Alexey Brodkin
2018-11-09 21:03 ` Thomas Petazzoni [this message]
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