From: Laurent Vivier <laurent@vivier.eu>
To: Richard Henderson <rth@twiddle.net>, qemu-devel@nongnu.org
Cc: bruno@clisp.org, aurelien@aurel32.net
Subject: Re: [Qemu-devel] [PATCH 00/11] target/sh4 improvments
Date: Thu, 6 Jul 2017 03:15:31 +0200 [thread overview]
Message-ID: <6aa90152-7784-bda3-420a-e6a75b9977c3@vivier.eu> (raw)
In-Reply-To: <20170706002401.10507-1-rth@twiddle.net>
Le 06/07/2017 à 02:23, Richard Henderson a écrit :
> This fixes two problems with atomic operations on sh4,
> including an attempt at supporting the user-space atomics
> technique used by most sh-linux-user binaries.
I tried some time ago to support gUSA hack by decoding the
instruction[1] the application wants to be atomic, but it is not viable
as we need to know all possible sequences the user can generate (but we
can guess it is always generated by glibc, and thus well known).
Laurent
[1]
https://github.com/vivier/qemu/commit/25013c121661c6831f08c2140114c8de06cf48da
next prev parent reply other threads:[~2017-07-06 1:15 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-06 0:23 [Qemu-devel] [PATCH 00/11] target/sh4 improvments Richard Henderson
2017-07-06 0:23 ` [Qemu-devel] [PATCH 01/11] target/sh4: Use cmpxchg for movco Richard Henderson
2017-07-06 15:25 ` Richard Henderson
2017-07-06 0:23 ` [Qemu-devel] [PATCH 02/11] target/sh4: Consolidate end-of-TB tests Richard Henderson
2017-07-06 15:17 ` Aurelien Jarno
2017-07-06 0:23 ` [Qemu-devel] [PATCH 03/11] target/sh4: Handle user-space atomics Richard Henderson
2017-07-06 15:50 ` Aurelien Jarno
2017-07-06 0:23 ` [Qemu-devel] [PATCH 04/11] target/sh4: Recognize common gUSA sequences Richard Henderson
2017-07-06 0:23 ` [Qemu-devel] [PATCH 05/11] linux-user/sh4: Notice gUSA regions during signal delivery Richard Henderson
2017-07-06 1:09 ` Laurent Vivier
2017-07-06 8:10 ` John Paul Adrian Glaubitz
2017-07-06 8:35 ` Laurent Vivier
2017-07-06 9:07 ` John Paul Adrian Glaubitz
2017-07-06 9:13 ` John Paul Adrian Glaubitz
2017-07-06 9:19 ` Laurent Vivier
2017-07-06 11:07 ` John Paul Adrian Glaubitz
2017-07-06 12:09 ` Laurent Vivier
2017-07-06 0:23 ` [Qemu-devel] [PATCH 06/11] target/sh4: Hoist register bank selection Richard Henderson
2017-07-06 0:23 ` [Qemu-devel] [PATCH 07/11] target/sh4: Unify cpu_fregs into FREG Richard Henderson
2017-07-06 1:55 ` Philippe Mathieu-Daudé
2017-07-06 0:23 ` [Qemu-devel] [PATCH 08/11] target/sh4: Pass DisasContext to fpr64 routines Richard Henderson
2017-07-06 0:23 ` [Qemu-devel] [PATCH 09/11] target/sh4: Avoid a potential translator crash for malformed FPR64 Richard Henderson
2017-07-06 0:24 ` [Qemu-devel] [PATCH 10/11] target/sh4: Hoist fp bank selection Richard Henderson
2017-07-06 0:24 ` [Qemu-devel] [PATCH 11/11] target/sh4: Eliminate DREG macro Richard Henderson
2017-07-06 1:15 ` Laurent Vivier [this message]
2017-07-06 14:55 ` [Qemu-devel] [PATCH 00/11] target/sh4 improvments Aurelien Jarno
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