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From: Andrew Pinski <pinskia@gmail.com>
To: Yury Norov <ynorov@caviumnetworks.com>
Cc: "Zhangjian (Bamvor)" <bamvor.zhangjian@huawei.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Linux-Arch <linux-arch@vger.kernel.org>,
	linux-s390 <linux-s390@vger.kernel.org>,
	"Kapoor, Prasun" <Prasun.Kapoor@caviumnetworks.com>,
	Andreas Schwab <schwab@suse.de>, Mark Brown <broonie@kernel.org>,
	linux-doc@vger.kernel.org,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Alexander Graf <agraf@suse.de>,
	Alexey Klimov <klimov.linux@gmail.com>,
	"Joseph S. Myers" <joseph@codesourcery.com>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Nathan Lynch <Nathan_Lynch@mentor.com>,
	Philipp Tomsich <philipp.tomsich@theobroma-systems.com>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	christoph.muellner@theobroma-systems.com,
	Hanjun Guo <guohanjun@huawei.com>
Subject: Re: [PATCH 24/25] arm64:ilp32: add vdso-ilp32 and use for signal return
Date: Wed, 4 May 2016 16:23:13 -0700	[thread overview]
Message-ID: <CA+=Sn1ngpaJWHpGDmU+kXBkz56SO+XDW2qzMMLAbbBWnaB0eqw@mail.gmail.com> (raw)
In-Reply-To: <20160504214949.GA28217@yury-N73SV>

On Wed, May 4, 2016 at 2:49 PM, Yury Norov <ynorov@caviumnetworks.com> wrote:
> On Tue, May 03, 2016 at 08:41:25PM +0800, Zhangjian (Bamvor) wrote:
>> Hi, all
>>
>> After apply this patch with my small testcase, the vsyscall of gettimeofday in
>> ilp32 works in both big endian and small endian. In this patch, I use the
>> different register and offset for ilp32 and lp64. Actually, the
>> COMPAT_TVAL_TV_SEC is same as TVAL_TV_SEC(so as to COMPAT_TSPEC_TV_SEC and
>> TSPEC_TV_SEC). I add it to keep the logic clear. I also change the version
>> of vdso to 4.6. It should change to 2.6.39 if glibc is not update.
>>
>
> [...]
>
> Hi Bamvor,
>
> It works for me as well. Thank you.
> I'll incorporate it in next submission.

We should add the following so we are complaint to the ILP32 ABI
dealing with pointers don't have to be zero extended for arguments,
Note ZERO should most likely be ZERO_PTR or something to do that
effect, I am not so good with names.
#ifdef __LP64__
#define ZERO(n)
#else
#define ZERO(n)         mov     w##n, w##n
#endif

...
ENTRY(__kernel_gettimeofday)
        .cfi_startproc
        ZERO(0)
        ZERO(1)
...
ENTRY(__kernel_clock_gettime)
        .cfi_startproc
        ZERO(1)
...
ENTRY(__kernel_clock_getres)
        .cfi_startproc
        ZERO(1)

Thanks,
Andrew Pinski

>
> Yury.

  reply	other threads:[~2016-05-04 23:23 UTC|newest]

Thread overview: 132+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-05 22:08 [RFC6 PATCH v6 00/21] ILP32 for ARM64 Yury Norov
2016-04-05 22:08 ` [PATCH 01/25] all: syscall wrappers: add documentation Yury Norov
2016-04-05 22:08 ` [PATCH 02/25] all: introduce COMPAT_WRAPPER option and enable it for s390 Yury Norov
2016-04-05 22:08 ` [PATCH 03/25] all: s390: move wrapper infrastructure to generic headers Yury Norov
2016-04-05 22:08 ` [PATCH 04/25] all: s390: move compat_wrappers.c from arch/s390/kernel to kernel/ Yury Norov
2016-04-05 22:08 ` [PATCH 05/25] all: wrap needed syscalls in generic unistd Yury Norov
2016-04-05 22:08 ` [PATCH 06/25] compat ABI: use non-compat openat and open_by_handle_at variants Yury Norov
2016-04-05 22:08 ` [PATCH 07/25] 32-bit ABI: introduce ARCH_32BIT_OFF_T config option Yury Norov
2016-04-05 22:08 ` [PATCH 08/25] arm64: ilp32: add documentation on the ILP32 ABI for ARM64 Yury Norov
2016-04-05 22:08 ` [PATCH 09/25] arm64: ensure the kernel is compiled for LP64 Yury Norov
2016-04-05 22:08 ` [PATCH 10/25] arm64: rename COMPAT to AARCH32_EL0 in Kconfig Yury Norov
2016-04-14  3:20   ` Zhangjian (Bamvor)
2016-04-22 15:28     ` Catalin Marinas
2016-04-05 22:08 ` [PATCH 11/25] arm64: change some CONFIG_COMPAT over to use CONFIG_AARCH32_EL0 instead Yury Norov
2016-04-05 22:08 ` [PATCH 12/25] arm64: compat: change config dependences to aarch32 Yury Norov
2016-04-22 15:58   ` Catalin Marinas
2016-04-22 21:59     ` Yury Norov
2016-04-23  2:33       ` Zhangjian (Bamvor)
2016-04-05 22:08 ` [PATCH 13/25] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64 Yury Norov
2016-04-05 22:08 ` [PATCH 14/25] thread: move thread bits accessors to separated file Yury Norov
2016-04-05 22:08 ` [PATCH 15/25] arm64: introduce is_a32_task and is_a32_thread (for AArch32 compat) Yury Norov
2016-05-06 12:02   ` Zhangjian (Bamvor)
2016-04-05 22:08 ` [PATCH 16/25] arm64: ilp32: add is_ilp32_compat_{task,thread} and TIF_32BIT_AARCH64 Yury Norov
2016-04-05 22:08 ` [PATCH 17/25] arm64: introduce binfmt_elf32.c Yury Norov
2016-04-05 22:08 ` [PATCH 18/25] arm64: ilp32: introduce binfmt_ilp32.c Yury Norov
2016-04-22 16:51   ` Catalin Marinas
2016-04-22 17:41     ` Arnd Bergmann
2016-04-05 22:08 ` [PATCH 19/25] arm64: ptrace: handle ptrace_request differently for aarch32 and ilp32 Yury Norov
2016-04-22 17:10   ` Catalin Marinas
2016-04-22 21:40     ` Yury Norov
2016-04-25 16:57       ` Catalin Marinas
2016-04-05 22:08 ` [PATCH 20/25] arm64:ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it Yury Norov
2016-04-25 17:26   ` Catalin Marinas
2016-04-25 18:19     ` Yury Norov
2016-04-25 18:47       ` Yury Norov
2016-04-26 10:08         ` Catalin Marinas
2016-04-26 16:57   ` Catalin Marinas
2016-04-28 19:19     ` Yury Norov
2016-04-28 20:43       ` Arnd Bergmann
2016-04-28 22:21         ` Yury Norov
2016-04-28 22:43           ` Arnd Bergmann
2016-04-29 13:13             ` Yury Norov
2016-04-29 15:45               ` Arnd Bergmann
2016-05-06 12:16   ` Zhangjian (Bamvor)
2016-05-06 12:37     ` Yury Norov
2016-05-10  7:42       ` Zhangjian (Bamvor)
2016-05-10  7:55         ` Zhangjian (Bamvor)
2016-05-10  8:36         ` Arnd Bergmann
2016-05-10  9:47           ` Zhangjian (Bamvor)
2016-05-10 11:48             ` Arnd Bergmann
2016-05-10 12:39               ` Zhangjian (Bamvor)
2016-05-10 12:50                 ` Arnd Bergmann
2016-05-11  2:04                   ` Zhangjian (Bamvor)
2016-05-11  8:04                     ` Yury Norov
2016-05-11 10:55                       ` Arnd Bergmann
2016-05-11 16:59                         ` Catalin Marinas
2016-05-11 19:30                           ` Arnd Bergmann
2016-05-12  9:17                             ` Catalin Marinas
2016-05-12  9:21                               ` Arnd Bergmann
2016-05-12 12:49                                 ` Zhangjian (Bamvor)
2016-05-12 13:06                                   ` Arnd Bergmann
2016-05-12 13:19                                     ` Yury Norov
2016-05-14 12:49                                       ` Yury Norov
2016-05-11  8:09                     ` Arnd Bergmann
2016-05-11 10:12                       ` Zhangjian (Bamvor)
2016-05-11 11:16                         ` Zhangjian (Bamvor)
2016-05-11 14:50                           ` Arnd Bergmann
2016-05-12  3:45                             ` Zhangjian (Bamvor)
2016-05-12  8:24                               ` Yury Norov
2016-05-12 12:52                                 ` Zhangjian (Bamvor)
2016-05-12 12:59                                   ` Yury Norov
2016-05-14 15:03   ` Yury Norov
2016-05-16 17:06     ` Catalin Marinas
2016-05-17 19:05       ` Yury Norov
2016-05-18 11:21         ` Catalin Marinas
2016-05-18 17:58           ` Yury Norov
2016-04-05 22:08 ` [PATCH 21/25] arm64: signal: share lp64 signal routines to ilp32 Yury Norov
2016-04-05 22:08 ` [PATCH 22/25] arm64: signal32: move ilp32 and aarch32 common code to separated file Yury Norov
2016-04-05 22:08 ` [PATCH 23/25] arm64: ilp32: introduce ilp32-specific handlers for sigframe and ucontext Yury Norov
2016-04-05 22:08 ` [PATCH 24/25] arm64:ilp32: add vdso-ilp32 and use for signal return Yury Norov
2016-04-13  9:19   ` Zhangjian (Bamvor)
2016-04-13 15:55     ` Yury Norov
2016-05-03 12:49       ` Zhangjian (Bamvor)
2016-04-29 16:01   ` Catalin Marinas
2016-04-29 17:30     ` Arnd Bergmann
2016-05-03  9:00       ` Catalin Marinas
2016-05-03  9:05         ` Arnd Bergmann
2016-05-03 11:07           ` Zhangjian (Bamvor)
2016-05-03 12:41             ` Zhangjian (Bamvor)
2016-05-04 21:49               ` Yury Norov
2016-05-04 23:23                 ` Andrew Pinski [this message]
2016-05-05  2:24                   ` Zhangjian (Bamvor)
2016-05-05  6:40                     ` Andrew Pinski
2016-05-06 14:00                       ` Yury Norov
2016-05-09 10:07                         ` Zhangjian (Bamvor)
2016-05-05  8:22               ` Yury Norov
2016-04-05 22:08 ` [PATCH 25/25] arm64:ilp32: add ARM64_ILP32 to Kconfig Yury Norov
2016-04-29 16:03   ` Catalin Marinas
2016-04-29 16:08     ` Yury Norov
2016-04-29 16:14       ` Catalin Marinas
2016-04-29 16:26         ` Yury Norov
2016-04-05 22:44 ` [RFC6 PATCH v6 00/21] ILP32 for ARM64 - LTP results Yury Norov
2016-04-23  3:37   ` Zhangjian (Bamvor)
2016-04-27  7:30     ` Andrew Pinski
2016-04-27 21:15       ` Andrew Pinski
2016-04-28 12:16         ` Zhangjian (Bamvor)
2016-04-06  6:51 ` [RFC6 PATCH v6 00/21] ILP32 for ARM64 Geert Uytterhoeven
2016-04-06 12:29   ` Yury Norov
2016-04-07 12:28     ` Geert Uytterhoeven
2016-05-12  0:20 ` Yury Norov
2016-05-12  9:19   ` Arnd Bergmann
2016-05-12 10:30     ` Yury Norov
2016-05-12 13:35   ` Catalin Marinas
2016-05-12 13:44     ` Yury Norov
2016-05-12 14:07       ` Catalin Marinas
2016-05-12 14:20         ` Catalin Marinas
2016-05-12 14:34           ` Yury Norov
2016-05-12 14:54             ` Catalin Marinas
2016-05-12 15:27               ` Yury Norov
2016-05-12 14:24         ` Yury Norov
2016-05-12 15:28           ` Catalin Marinas
2016-05-13  8:11             ` Zhangjian (Bamvor)
2016-05-13  9:28               ` Catalin Marinas
2016-05-13 10:51                 ` Yury Norov
2016-05-13 11:03                   ` Catalin Marinas
2016-05-13 13:32                 ` Catalin Marinas
2016-05-17 12:10 ` Szabolcs Nagy
2016-05-17 15:37   ` Arnd Bergmann
2016-05-17 15:45     ` Joseph Myers
2016-05-17 16:02       ` Andreas Schwab
2016-05-17 22:45         ` Arnd Bergmann
2016-05-17 15:40   ` Joseph Myers

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