From: Catalin Marinas <catalin.marinas@arm.com>
To: Yury Norov <ynorov@caviumnetworks.com>
Cc: arnd@arndb.de, pinskia@gmail.com,
Prasun.Kapoor@caviumnetworks.com, schwab@suse.de,
Nathan_Lynch@mentor.com, linux-kernel@vger.kernel.org,
agraf@suse.de, klimov.linux@gmail.com, broonie@kernel.org,
jan.dakinevich@gmail.com, joseph@codesourcery.com,
ddaney.cavm@gmail.com, bamvor.zhangjian@huawei.com,
philipp.tomsich@theobroma-systems.com,
andrey.konovalov@linaro.org,
linux-arm-kernel@lists.infradead.org,
christoph.muellner@theobroma-systems.com
Subject: Re: [RFC2 PATCH v6 00/19] ILP32 for ARM64
Date: Fri, 4 Dec 2015 17:18:56 +0000 [thread overview]
Message-ID: <20151204171856.GP10123@e104818-lin.cambridge.arm.com> (raw)
In-Reply-To: <20151204153550.GB1251@yury-N73SV>
On Fri, Dec 04, 2015 at 06:35:50PM +0300, Yury Norov wrote:
> On Thu, Dec 03, 2015 at 05:59:55PM +0000, Catalin Marinas wrote:
> > On Wed, Nov 18, 2015 at 12:16:40AM +0300, Yury Norov wrote:
> > > - ILP32 VDSO code excluded. It's not mandatory, and caused questions
> > > during review process. We definitely make sure we will follow up
> > > with a VDSO later on because it is needed for performance reasons;
> >
> > I already asked in one of the patches, don't you need a VDSO for
> > sigreturn?
>
> I didn't realise it's mandatory for ARMv8 when removed it. I'll back
> it, but I think rework required anyway.
The alternative is to use SA_RESTORER but AFAIK, its use has been
deprecated. I don't know what aarch64 glibc does if it doesn't have a
vdso.
--
Catalin
WARNING: multiple messages have this Message-ID (diff)
From: catalin.marinas@arm.com (Catalin Marinas)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC2 PATCH v6 00/19] ILP32 for ARM64
Date: Fri, 4 Dec 2015 17:18:56 +0000 [thread overview]
Message-ID: <20151204171856.GP10123@e104818-lin.cambridge.arm.com> (raw)
In-Reply-To: <20151204153550.GB1251@yury-N73SV>
On Fri, Dec 04, 2015 at 06:35:50PM +0300, Yury Norov wrote:
> On Thu, Dec 03, 2015 at 05:59:55PM +0000, Catalin Marinas wrote:
> > On Wed, Nov 18, 2015 at 12:16:40AM +0300, Yury Norov wrote:
> > > - ILP32 VDSO code excluded. It's not mandatory, and caused questions
> > > during review process. We definitely make sure we will follow up
> > > with a VDSO later on because it is needed for performance reasons;
> >
> > I already asked in one of the patches, don't you need a VDSO for
> > sigreturn?
>
> I didn't realise it's mandatory for ARMv8 when removed it. I'll back
> it, but I think rework required anyway.
The alternative is to use SA_RESTORER but AFAIK, its use has been
deprecated. I don't know what aarch64 glibc does if it doesn't have a
vdso.
--
Catalin
next prev parent reply other threads:[~2015-12-04 17:19 UTC|newest]
Thread overview: 158+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-17 21:16 [RFC2 PATCH v6 00/19] ILP32 for ARM64 Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-11-17 21:16 ` [PATCH v6 01/19] arm64:ilp32: add documentation on the ILP32 ABI " Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-11-18 8:09 ` Zhangjian (Bamvor)
2015-11-18 8:09 ` Zhangjian (Bamvor)
2015-11-17 21:16 ` [PATCH v6 02/19] arm64: ensure the kernel is compiled for LP64 Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-11-17 21:16 ` [PATCH v6 03/19] arm64: rename COMPAT to AARCH32_EL0 in Kconfig Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-11-17 21:16 ` [PATCH v6 04/19] arm64: change some CONFIG_COMPAT over to use CONFIG_AARCH32_EL0 instead Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-12-03 12:02 ` Catalin Marinas
2015-12-03 12:02 ` Catalin Marinas
2015-12-04 21:58 ` Yury Norov
2015-12-04 21:58 ` Yury Norov
2015-11-17 21:16 ` [PATCH v6 05/19] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64 Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-12-03 11:31 ` Catalin Marinas
2015-12-03 11:31 ` Catalin Marinas
2015-12-03 11:36 ` Dr. Philipp Tomsich
2015-12-03 11:36 ` Dr. Philipp Tomsich
2015-11-17 21:16 ` [PATCH v6 06/19] arm64:ilp32: share signal structures between ILP32 and LP64 ABIs Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-11-17 22:14 ` Arnd Bergmann
2015-11-17 22:14 ` Arnd Bergmann
2015-11-17 21:16 ` [PATCH v6 07/19] arm64: introduce is_a32_task and is_a32_thread (for AArch32 compat) Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-12-03 12:13 ` Catalin Marinas
2015-12-03 12:13 ` Catalin Marinas
2015-12-04 17:05 ` Yury Norov
2015-12-04 17:05 ` Yury Norov
2015-12-05 11:00 ` Catalin Marinas
2015-12-05 11:00 ` Catalin Marinas
2015-11-17 21:16 ` [PATCH v6 08/19] arm64:ilp32: add is_ilp32_compat_{task,thread} and TIF_32BIT_AARCH64 Yury Norov
2015-11-17 21:16 ` [PATCH v6 08/19] arm64:ilp32: add is_ilp32_compat_{task, thread} " Yury Norov
2015-11-17 21:16 ` [PATCH v6 09/19] arm64:ilp32: share HWCAP between LP64 and ILP32 Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-11-17 21:16 ` [PATCH v6 10/19] arm64:ilp32 use the native LP64 'start_thread' for ILP32 threads Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-12-03 12:20 ` Catalin Marinas
2015-12-03 12:20 ` Catalin Marinas
2015-11-17 21:16 ` [PATCH v6 11/19] arm64:ilp32: support core dump generation for ILP32 Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-12-03 16:39 ` Catalin Marinas
2015-12-03 16:39 ` Catalin Marinas
2015-11-17 21:16 ` [PATCH v6 12/19] ptrace: Allow compat to use the native siginfo Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-11-17 21:16 ` [PATCH v6 13/19] arm64: ilp32: common 32-bit wrappers Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-11-17 21:16 ` [PATCH v6 14/19] arm64:ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-11-17 21:57 ` Arnd Bergmann
2015-11-17 21:57 ` Arnd Bergmann
2015-11-18 8:14 ` Arnd Bergmann
2015-11-18 8:14 ` Arnd Bergmann
2015-11-19 13:21 ` Andreas Schwab
2015-11-19 13:21 ` Andreas Schwab
2015-11-19 13:32 ` Arnd Bergmann
2015-11-19 13:32 ` Arnd Bergmann
2015-11-30 15:34 ` Arnd Bergmann
2015-11-30 15:34 ` Arnd Bergmann
2015-11-30 20:21 ` Yury Norov
2015-11-30 20:21 ` Yury Norov
2015-11-30 21:49 ` Arnd Bergmann
2015-11-30 21:49 ` Arnd Bergmann
2015-12-01 0:20 ` Andrew Pinski
2015-12-01 0:20 ` Andrew Pinski
2015-12-01 0:40 ` Yury Norov
2015-12-01 0:40 ` Yury Norov
2015-12-01 10:26 ` Arnd Bergmann
2015-12-01 10:26 ` Arnd Bergmann
2015-12-01 9:20 ` Andreas Schwab
2015-12-01 9:20 ` Andreas Schwab
2015-12-01 10:22 ` Arnd Bergmann
2015-12-01 10:22 ` Arnd Bergmann
2015-12-01 11:01 ` Andreas Schwab
2015-12-01 11:01 ` Andreas Schwab
2015-12-01 11:30 ` Arnd Bergmann
2015-12-01 11:30 ` Arnd Bergmann
2015-12-02 0:24 ` Yury Norov
2015-12-02 0:24 ` Yury Norov
2015-12-02 10:03 ` Arnd Bergmann
2015-12-02 10:03 ` Arnd Bergmann
2015-12-03 17:17 ` Catalin Marinas
2015-12-03 17:17 ` Catalin Marinas
2015-12-01 21:29 ` Yury Norov
2015-12-01 21:29 ` Yury Norov
2015-12-01 22:39 ` Arnd Bergmann
2015-12-01 22:39 ` Arnd Bergmann
2015-12-01 23:35 ` Yury Norov
2015-12-01 23:35 ` Yury Norov
2015-12-02 8:37 ` Arnd Bergmann
2015-12-02 8:37 ` Arnd Bergmann
2015-12-02 9:15 ` Yury Norov
2015-12-02 9:15 ` Yury Norov
2015-12-02 10:35 ` Yury Norov
2015-12-02 10:35 ` Yury Norov
2015-12-02 13:46 ` Arnd Bergmann
2015-12-02 13:46 ` Arnd Bergmann
2015-12-02 13:54 ` Arnd Bergmann
2015-12-02 13:54 ` Arnd Bergmann
2015-12-02 13:57 ` Will Deacon
2015-12-02 13:57 ` Will Deacon
2015-12-03 17:47 ` Catalin Marinas
2015-12-03 17:47 ` Catalin Marinas
2015-12-03 18:14 ` Yury Norov
2015-12-03 18:14 ` Yury Norov
2015-12-03 20:42 ` Arnd Bergmann
2015-12-03 20:42 ` Arnd Bergmann
2015-12-02 10:01 ` Yury Norov
2015-12-02 10:01 ` Yury Norov
2015-12-02 11:03 ` Arnd Bergmann
2015-12-02 11:03 ` Arnd Bergmann
2015-11-17 21:16 ` [PATCH v6 15/19] arm64: ilp32: force IPC_64 in msgctl, shmctl, semctl Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-11-17 22:07 ` Arnd Bergmann
2015-11-17 22:07 ` Arnd Bergmann
2015-11-18 8:25 ` Andreas Schwab
2015-11-18 8:25 ` Andreas Schwab
2015-11-18 9:23 ` Arnd Bergmann
2015-11-18 9:23 ` Arnd Bergmann
2015-11-18 10:07 ` Geert Uytterhoeven
2015-11-18 10:07 ` Geert Uytterhoeven
2015-11-18 12:04 ` Arnd Bergmann
2015-11-18 12:04 ` Arnd Bergmann
2015-11-17 21:16 ` [PATCH v6 16/19] aarch64: ilp32: use generic stat64 structure Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-11-17 22:09 ` Arnd Bergmann
2015-11-17 22:09 ` Arnd Bergmann
2015-11-18 20:36 ` Yury Norov
2015-11-18 20:36 ` Yury Norov
2015-11-18 20:45 ` Arnd Bergmann
2015-11-18 20:45 ` Arnd Bergmann
2015-11-17 21:16 ` [PATCH v6 17/19] arm64:ilp32: use the native siginfo instead of the compat siginfo Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-11-17 21:16 ` [PATCH v6 18/19] arm64:ilp32: change COMPAT_ELF_PLATFORM to report a a subplatform for ILP32 Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-11-18 8:11 ` Zhangjian (Bamvor)
2015-11-18 8:11 ` Zhangjian (Bamvor)
2015-11-18 11:21 ` pinskia
2015-11-18 11:21 ` pinskia at gmail.com
2015-11-18 20:25 ` Yury Norov
2015-11-18 20:25 ` Yury Norov
2015-11-18 21:47 ` Dr. Philipp Tomsich
2015-11-18 21:47 ` Dr. Philipp Tomsich
2015-11-17 21:16 ` [PATCH v6 19/19] arm64:ilp32: add ARM64_ILP32 to Kconfig Yury Norov
2015-11-17 21:16 ` Yury Norov
2015-11-18 8:00 ` [RFC2 PATCH v6 00/19] ILP32 for ARM64 Zhangjian (Bamvor)
2015-11-18 8:00 ` Zhangjian (Bamvor)
2015-11-23 16:49 ` Andreas Schwab
2015-11-23 16:49 ` Andreas Schwab
2015-12-03 17:59 ` Catalin Marinas
2015-12-03 17:59 ` Catalin Marinas
2015-12-04 15:35 ` Yury Norov
2015-12-04 15:35 ` Yury Norov
2015-12-04 17:18 ` Catalin Marinas [this message]
2015-12-04 17:18 ` Catalin Marinas
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