From: Mathieu Desnoyers via lttng-dev <lttng-dev@lists.lttng.org>
To: Michael Jeanson <mjeanson@efficios.com>
Cc: lttng-dev <lttng-dev@lists.lttng.org>
Subject: Re: [lttng-dev] [PATCH urcu 2/4] Blacklist GCC 4.4.0, 4.4.1 and 4.4.2 on ARM
Date: Thu, 17 Dec 2020 08:29:33 -0500 (EST) [thread overview]
Message-ID: <447689624.6529.1608211773801.JavaMail.zimbra@efficios.com> (raw)
In-Reply-To: <20201215162850.78638-2-mjeanson@efficios.com>
Merged in liburcu master, thanks!
Mathieu
----- On Dec 15, 2020, at 11:28 AM, Michael Jeanson mjeanson@efficios.com wrote:
> GCC added __sync_synchronize() in 4.4.0 but it was broken on ARM until
> 4.4.3, see the GCC bug report for more details :
>
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42263
>
> Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
> Change-Id: I629e3c8b4baaccb34b2311e220f30d0ad8b69a19
> ---
> include/urcu/arch/arm.h | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/include/urcu/arch/arm.h b/include/urcu/arch/arm.h
> index 5d1c608..e904b06 100644
> --- a/include/urcu/arch/arm.h
> +++ b/include/urcu/arch/arm.h
> @@ -70,6 +70,15 @@ extern "C" {
> # endif
> #endif
>
> +/*
> + * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42263
> + */
> +#ifdef URCU_GCC_VERSION
> +# if URCU_GCC_VERSION >= 40400 && URCU_GCC_VERSION <= 40402
> +# error Your gcc version has a non-functional __sync_synchronize()
> +# endif
> +#endif
> +
> #ifdef __cplusplus
> }
> #endif
> --
> 2.29.2
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
_______________________________________________
lttng-dev mailing list
lttng-dev@lists.lttng.org
https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
next prev parent reply other threads:[~2020-12-17 13:29 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-15 16:28 [lttng-dev] [PATCH urcu 1/4] Cleanup: Move ARM specific code to urcu/arch/arm.h Michael Jeanson via lttng-dev
2020-12-15 16:28 ` [lttng-dev] [PATCH urcu 2/4] Blacklist GCC 4.4.0, 4.4.1 and 4.4.2 on ARM Michael Jeanson via lttng-dev
2020-12-17 13:29 ` Mathieu Desnoyers via lttng-dev [this message]
2020-12-15 16:28 ` [lttng-dev] [PATCH urcu 3/4] Use DMB only on ARMv7 Michael Jeanson via lttng-dev
2020-12-17 13:29 ` Mathieu Desnoyers via lttng-dev
2020-12-15 16:28 ` [lttng-dev] [PATCH urcu 4/4] Don't force a target and optimization level " Michael Jeanson via lttng-dev
2020-12-15 16:39 ` Paul E. McKenney via lttng-dev
2020-12-17 13:30 ` Mathieu Desnoyers via lttng-dev
2020-12-17 13:29 ` [lttng-dev] [PATCH urcu 1/4] Cleanup: Move ARM specific code to urcu/arch/arm.h Mathieu Desnoyers via lttng-dev
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=447689624.6529.1608211773801.JavaMail.zimbra@efficios.com \
--to=lttng-dev@lists.lttng.org \
--cc=mathieu.desnoyers@efficios.com \
--cc=mjeanson@efficios.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.