NetBSD Problem Report #55418
From kardel@Kardel.name Thu Jun 25 18:30:00 2020
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Message-Id: <20200625182955.5F58644B33@Andromeda.Kardel.name>
Date: Thu, 25 Jun 2020 20:29:55 +0200 (CEST)
From: kardel@netbsd.org
Reply-To: kardel@netbsd.org
To: gnats-bugs@NetBSD.org
Subject: NetBSD 9.0_STABLE i386 lacks __atomic_{load,store}_8
X-Send-Pr-Version: 3.95
>Number: 55418
>Category: toolchain
>Synopsis: NetBSD 9.0_STABLE i386 lacks __atomic_{load,store}_8
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: toolchain-manager
>State: closed
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Thu Jun 25 18:35:00 +0000 2020
>Closed-Date: Fri Jun 26 08:02:42 +0000 2020
>Last-Modified: Fri Jun 26 08:02:42 +0000 2020
>Originator: Frank Kardel
>Release: NetBSD 9.0_STABLE
>Organization:
>Environment:
System: NetBSD router 9.0_STABLE NetBSD 9.0_STABLE (ROUTER) #0: Thu Mar 26 15:05:05 UTC 2020 kardel@emptyShell:/usr/obj/sys/arch/i386/compile/ROUTER i386
Architecture: i386
Machine: i386
>Description:
When building pkgsrc/wip/bareos-clientonly linking fails to
resolve __atomic_store_8, __atomic_load_8.
Primitives used in work/bareos-Release-19.2.7/core/src/lib/timer_thread.cc
static std::atomic<std::time_t> calendar_time_on_last_timer_run(time(nullptr));
static std::atomic<TimerThreadState> timer_thread_state(...);
static std::atomic<bool> quit_timer_thread(false);
The compiler gcc (nb3 20190319) 7.4.0 happily compiles the code but generates
calls to __atomic_{load,store}_8 which I do not find in the libraries.
Any hints?
BTW, on amd64 this works flawlessly and an 8-Bit atomic quantity should be
available in i386 ISA.
>How-To-Repeat:
Build pkgsrc/wip/bareos-clientonly on an i386 environment.
>Fix:
?
>Release-Note:
>Audit-Trail:
From: Martin Husemann <martin@duskware.de>
To: gnats-bugs@netbsd.org
Cc:
Subject: Re: toolchain/55418: NetBSD 9.0_STABLE i386 lacks
__atomic_{load,store}_8
Date: Thu, 25 Jun 2020 21:25:27 +0200
On Thu, Jun 25, 2020 at 06:35:00PM +0000, kardel@netbsd.org wrote:
> BTW, on amd64 this works flawlessly and an 8-Bit atomic quantity should be
> available in i386 ISA.
It is not available in all models. If you tell the compiler you are tareting
a newer CPU, it will just work.
Martin
From: Frank Kardel <kardel@netbsd.org>
To: gnats-bugs@netbsd.org
Cc:
Subject: Re: toolchain/55418: NetBSD 9.0_STABLE i386 lacks
__atomic_{load,store}_8
Date: Fri, 26 Jun 2020 09:58:20 +0200
Thanks - I now force -march=i586 for i386 archs.
On 06/25/20 21:30, Martin Husemann wrote:
> The following reply was made to PR toolchain/55418; it has been noted by GNATS.
>
> From: Martin Husemann <martin@duskware.de>
> To: gnats-bugs@netbsd.org
> Cc:
> Subject: Re: toolchain/55418: NetBSD 9.0_STABLE i386 lacks
> __atomic_{load,store}_8
> Date: Thu, 25 Jun 2020 21:25:27 +0200
>
> On Thu, Jun 25, 2020 at 06:35:00PM +0000, kardel@netbsd.org wrote:
> > BTW, on amd64 this works flawlessly and an 8-Bit atomic quantity should be
> > available in i386 ISA.
>
> It is not available in all models. If you tell the compiler you are tareting
> a newer CPU, it will just work.
>
> Martin
>
State-Changed-From-To: open->closed
State-Changed-By: kardel@NetBSD.org
State-Changed-When: Fri, 26 Jun 2020 08:02:42 +0000
State-Changed-Why:
issue resolved
>Unformatted:
(Contact us)
$NetBSD: query-full-pr,v 1.46 2020/01/03 16:35:01 leot Exp $
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