From: Will Deacon <will@kernel.org>
To: Nick Desaulniers <ndesaulniers@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
LKML <linux-kernel@vger.kernel.org>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH v3 1/5] arm64: vdso32: Introduce COMPAT_CC_IS_GCC
Date: Tue, 1 Oct 2019 18:14:13 +0100 [thread overview]
Message-ID: <20191001171413.2idy6t7c3bi7rb5l@willie-the-truck> (raw)
In-Reply-To: <CAKwvOdm3E=Gp1XYfs6tcNObkJXA+VwvtLZt81mQ-mbo2gtyTaw@mail.gmail.com>
On Tue, Oct 01, 2019 at 10:12:59AM -0700, Nick Desaulniers wrote:
> On Tue, Oct 1, 2019 at 10:08 AM Will Deacon <will@kernel.org> wrote:
> >
> > On Tue, Oct 01, 2019 at 09:59:43AM -0700, Nick Desaulniers wrote:
> > > On Tue, Oct 1, 2019 at 9:47 AM Will Deacon <will@kernel.org> wrote:
> > > >
> > > > On Tue, Oct 01, 2019 at 04:30:56PM +0100, Catalin Marinas wrote:
> > > > > In the long run, I wouldn't mandate CROSS_COMPILE_COMPAT to always be
> > > > > set for the compat vDSO since with clang we could use the same compiler
> > > > > binary for both native and compat (with different flags). That's once we
> > > > > cleaned up the headers.
> > > >
> > > > But we'll still need it even with clang so that the relevant triple can be
> > > > passed to the --target option. The top-level Makefile already does this:
> > > >
> > > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Makefile#n544
> > >
> > > That's not pulling the cross compiler out of a *config* (as this patch
> > > is proposing); rather from an env var.
> >
> > CROSS_COMPILE_COMPAT is the environment variable, right? If not, then I have
> > my terminology mixed up.
>
> Ah, sorry, I'm the one misreading the patch. I thought the commit
> message was showing what the new process would be. I see now that it's
> describing the issue pre-patch. My mistake.
Thanks. Thought I was losing the plot for a moment there!
Will
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will@kernel.org>
To: Nick Desaulniers <ndesaulniers@google.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Catalin Marinas <catalin.marinas@arm.com>,
LKML <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v3 1/5] arm64: vdso32: Introduce COMPAT_CC_IS_GCC
Date: Tue, 1 Oct 2019 18:14:13 +0100 [thread overview]
Message-ID: <20191001171413.2idy6t7c3bi7rb5l@willie-the-truck> (raw)
In-Reply-To: <CAKwvOdm3E=Gp1XYfs6tcNObkJXA+VwvtLZt81mQ-mbo2gtyTaw@mail.gmail.com>
On Tue, Oct 01, 2019 at 10:12:59AM -0700, Nick Desaulniers wrote:
> On Tue, Oct 1, 2019 at 10:08 AM Will Deacon <will@kernel.org> wrote:
> >
> > On Tue, Oct 01, 2019 at 09:59:43AM -0700, Nick Desaulniers wrote:
> > > On Tue, Oct 1, 2019 at 9:47 AM Will Deacon <will@kernel.org> wrote:
> > > >
> > > > On Tue, Oct 01, 2019 at 04:30:56PM +0100, Catalin Marinas wrote:
> > > > > In the long run, I wouldn't mandate CROSS_COMPILE_COMPAT to always be
> > > > > set for the compat vDSO since with clang we could use the same compiler
> > > > > binary for both native and compat (with different flags). That's once we
> > > > > cleaned up the headers.
> > > >
> > > > But we'll still need it even with clang so that the relevant triple can be
> > > > passed to the --target option. The top-level Makefile already does this:
> > > >
> > > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Makefile#n544
> > >
> > > That's not pulling the cross compiler out of a *config* (as this patch
> > > is proposing); rather from an env var.
> >
> > CROSS_COMPILE_COMPAT is the environment variable, right? If not, then I have
> > my terminology mixed up.
>
> Ah, sorry, I'm the one misreading the patch. I thought the commit
> message was showing what the new process would be. I see now that it's
> describing the issue pre-patch. My mistake.
Thanks. Thought I was losing the plot for a moment there!
Will
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-10-01 17:14 UTC|newest]
Thread overview: 127+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-20 14:27 Problems with arm64 compat vdso Will Deacon
2019-09-20 16:33 ` Vincenzo Frascino
2019-09-23 16:41 ` Ard Biesheuvel
2019-09-24 12:11 ` Vincenzo Frascino
2019-09-24 18:06 ` Nick Desaulniers
2019-09-24 20:42 ` Vincenzo Frascino
2019-09-25 15:58 ` Ard Biesheuvel
2019-09-26 6:03 ` [PATCH 0/4] arm64: vdso32: Address various issues Vincenzo Frascino
2019-09-26 6:03 ` Vincenzo Frascino
2019-09-26 6:03 ` [PATCH 1/4] arm64: vdso32: Introduce COMPAT_CC_IS_GCC Vincenzo Frascino
2019-09-26 6:03 ` Vincenzo Frascino
2019-09-26 8:06 ` Catalin Marinas
2019-09-26 8:06 ` Catalin Marinas
2019-09-26 10:56 ` Vincenzo Frascino
2019-09-26 10:56 ` Vincenzo Frascino
2019-09-26 11:02 ` Vincenzo Frascino
2019-09-26 11:02 ` Vincenzo Frascino
2019-09-26 15:23 ` Catalin Marinas
2019-09-26 15:23 ` Catalin Marinas
2019-09-26 12:22 ` Vincenzo Frascino
2019-09-26 12:22 ` Vincenzo Frascino
2019-09-26 15:17 ` Catalin Marinas
2019-09-26 15:17 ` Catalin Marinas
2019-09-26 20:17 ` Vincenzo Frascino
2019-09-26 20:17 ` Vincenzo Frascino
2019-09-26 6:03 ` [PATCH 2/4] arm64: vdso32: Detect binutils support for dmb ishld Vincenzo Frascino
2019-09-26 6:03 ` Vincenzo Frascino
2019-09-26 8:30 ` Catalin Marinas
2019-09-26 8:30 ` Catalin Marinas
2019-09-26 10:59 ` Vincenzo Frascino
2019-09-26 10:59 ` Vincenzo Frascino
2019-09-26 6:03 ` [PATCH 3/4] arm64: vdso32: Fix compilation warning Vincenzo Frascino
2019-09-26 6:03 ` Vincenzo Frascino
2019-09-26 8:32 ` Catalin Marinas
2019-09-26 8:32 ` Catalin Marinas
2019-09-26 11:03 ` Vincenzo Frascino
2019-09-26 11:03 ` Vincenzo Frascino
2019-09-26 6:03 ` [PATCH 4/4] arm64: Remove gettimeofday.S Vincenzo Frascino
2019-09-26 6:03 ` Vincenzo Frascino
2019-09-26 8:34 ` Catalin Marinas
2019-09-26 8:34 ` Catalin Marinas
2019-09-26 13:38 ` [PATCH v2 0/4] arm64: vdso32: Address various issues Vincenzo Frascino
2019-09-26 13:38 ` Vincenzo Frascino
2019-09-26 13:38 ` [PATCH v2 1/4] arm64: vdso32: Introduce COMPAT_CC_IS_GCC Vincenzo Frascino
2019-09-26 13:38 ` Vincenzo Frascino
2019-09-26 15:13 ` Catalin Marinas
2019-09-26 15:13 ` Catalin Marinas
2019-09-26 13:38 ` [PATCH v2 2/4] arm64: vdso32: Detect binutils support for dmb ishld Vincenzo Frascino
2019-09-26 13:38 ` Vincenzo Frascino
2019-09-26 14:26 ` Catalin Marinas
2019-09-26 14:26 ` Catalin Marinas
2019-09-26 20:19 ` Vincenzo Frascino
2019-09-26 20:19 ` Vincenzo Frascino
2019-09-26 15:59 ` Catalin Marinas
2019-09-26 15:59 ` Catalin Marinas
2019-09-26 21:17 ` Vincenzo Frascino
2019-09-26 21:17 ` Vincenzo Frascino
2019-09-26 16:23 ` Nick Desaulniers
2019-09-26 16:23 ` Nick Desaulniers
2019-09-26 13:38 ` [PATCH v2 3/4] arm64: vdso32: Fix compilation warning Vincenzo Frascino
2019-09-26 13:38 ` Vincenzo Frascino
2019-09-26 15:22 ` Catalin Marinas
2019-09-26 15:22 ` Catalin Marinas
2019-09-26 13:38 ` [PATCH v2 4/4] arm64: Remove gettimeofday.S Vincenzo Frascino
2019-09-26 13:38 ` Vincenzo Frascino
2019-09-26 15:31 ` [PATCH v2 0/4] arm64: vdso32: Address various issues Catalin Marinas
2019-09-26 15:31 ` Catalin Marinas
2019-09-26 20:29 ` Vincenzo Frascino
2019-09-26 20:29 ` Vincenzo Frascino
2019-09-26 21:43 ` [PATCH v3 0/5]arm64: " Vincenzo Frascino
2019-09-26 21:43 ` Vincenzo Frascino
2019-09-26 21:43 ` [PATCH v3 1/5] arm64: vdso32: Introduce COMPAT_CC_IS_GCC Vincenzo Frascino
2019-09-26 21:43 ` Vincenzo Frascino
2019-09-27 9:24 ` Catalin Marinas
2019-09-27 9:24 ` Catalin Marinas
2019-10-01 13:14 ` Will Deacon
2019-10-01 13:14 ` Will Deacon
2019-10-01 13:27 ` Catalin Marinas
2019-10-01 13:27 ` Catalin Marinas
2019-10-01 14:20 ` Vincenzo Frascino
2019-10-01 14:20 ` Vincenzo Frascino
2019-10-01 14:20 ` Will Deacon
2019-10-01 14:20 ` Will Deacon
2019-10-01 14:37 ` Vincenzo Frascino
2019-10-01 14:37 ` Vincenzo Frascino
2019-10-01 14:43 ` Will Deacon
2019-10-01 14:43 ` Will Deacon
2019-10-01 14:59 ` Vincenzo Frascino
2019-10-01 14:59 ` Vincenzo Frascino
2019-10-01 15:30 ` Catalin Marinas
2019-10-01 15:30 ` Catalin Marinas
2019-10-01 16:46 ` Will Deacon
2019-10-01 16:46 ` Will Deacon
2019-10-01 16:59 ` Nick Desaulniers
2019-10-01 16:59 ` Nick Desaulniers
2019-10-01 17:07 ` Will Deacon
2019-10-01 17:07 ` Will Deacon
2019-10-01 17:12 ` Nick Desaulniers
2019-10-01 17:12 ` Nick Desaulniers
2019-10-01 17:14 ` Will Deacon [this message]
2019-10-01 17:14 ` Will Deacon
2019-09-26 21:43 ` [PATCH v3 2/5] arm64: vdso32: Detect binutils support for dmb ishld Vincenzo Frascino
2019-09-26 21:43 ` Vincenzo Frascino
2019-09-27 9:25 ` Catalin Marinas
2019-09-27 9:25 ` Catalin Marinas
2019-10-01 13:26 ` Will Deacon
2019-10-01 13:26 ` Will Deacon
2019-10-01 14:23 ` Vincenzo Frascino
2019-10-01 14:23 ` Vincenzo Frascino
2019-09-26 21:43 ` [PATCH v3 3/5] arm64: vdso32: Fix compilation warning Vincenzo Frascino
2019-09-26 21:43 ` Vincenzo Frascino
2019-09-27 9:26 ` Catalin Marinas
2019-09-27 9:26 ` Catalin Marinas
2019-10-01 13:21 ` Will Deacon
2019-10-01 13:21 ` Will Deacon
2019-10-01 14:41 ` Vincenzo Frascino
2019-10-01 14:41 ` Vincenzo Frascino
2019-09-26 21:43 ` [PATCH v3 4/5] arm64: Remove gettimeofday.S Vincenzo Frascino
2019-09-26 21:43 ` Vincenzo Frascino
2019-09-26 21:43 ` [PATCH v3 5/5] arm64: vdso32: Remove jump label config option in Makefile Vincenzo Frascino
2019-09-26 21:43 ` Vincenzo Frascino
2019-09-27 9:27 ` Catalin Marinas
2019-09-27 9:27 ` Catalin Marinas
2019-09-27 10:46 ` [PATCH v3 0/5]arm64: vdso32: Address various issues Catalin Marinas
2019-09-27 10:46 ` Catalin Marinas
2019-10-01 13:27 ` Will Deacon
2019-10-01 13:27 ` Will Deacon
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=20191001171413.2idy6t7c3bi7rb5l@willie-the-truck \
--to=will@kernel.org \
--cc=ard.biesheuvel@linaro.org \
--cc=catalin.marinas@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=ndesaulniers@google.com \
--cc=tglx@linutronix.de \
--cc=vincenzo.frascino@arm.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.