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From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC5 PATCH v6 00/21] ILP32 for ARM64
Date: Fri, 19 Feb 2016 15:06:48 +0100	[thread overview]
Message-ID: <91909204.T63Mn1YGy7@wuerfel> (raw)
In-Reply-To: <20160219125959.GA8675@yury-N73SV>

On Friday 19 February 2016 15:59:59 Yury Norov wrote:
> On Fri, Feb 19, 2016 at 09:23:35AM +0100, Arnd Bergmann wrote:
> > On Friday 19 February 2016 01:35:06 Yury Norov wrote:

> > In https://github.com/norov/glibc/commit/5d4290435e428267171ece871539b76e1d079d11
> > you are defining a struct __kernel_stat64 in the glibc. Is this the expected
> > way to do it? I would have thought you'd get the definition from the kernel
> > headers.
> >  
> > 	Arnd
> > 
> 
> Almost all ports define its own struct kernel_stat / kernel_stat64.
> in "kernel_header.h" See mips, spark, alpha, i386... Some also define
> function xstat_conv or similar. With all that defined, it's expected
> that one of generic xstat wrappers will work properly. I tried all,
> and noone got working, so I wrote this hack to make it work somehow. 

I see. I grepped for __kernel_stat64 and couldn't find any other
with that name, as the others tend to us slightly different names.

I would still think there is something wrong if you need to define
your own copy of xstat_conv when the kernel 'struct stat64' is
meant to be usable by user space. Shouldn't this work like any
other 32-bit architecture now?

	Arnd

WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: Yury Norov <ynorov@caviumnetworks.com>
Cc: linux-arm-kernel@lists.infradead.org, pinskia@gmail.com,
	Prasun.Kapoor@caviumnetworks.com, catalin.marinas@arm.com,
	broonie@kernel.org, heiko.carstens@de.ibm.com,
	linux-kernel@vger.kernel.org, agraf@suse.de,
	Nathan_Lynch@mentor.com, klimov.linux@gmail.com,
	"Zhangjian (Bamvor)" <bamvor.zhangjian@huawei.com>,
	schwab@suse.de, schwidefsky@de.ibm.com, jan.dakinevich@gmail.com,
	joseph@codesourcery.com,
	christoph.muellner@theobroma-systems.com
Subject: Re: [RFC5 PATCH v6 00/21] ILP32 for ARM64
Date: Fri, 19 Feb 2016 15:06:48 +0100	[thread overview]
Message-ID: <91909204.T63Mn1YGy7@wuerfel> (raw)
In-Reply-To: <20160219125959.GA8675@yury-N73SV>

On Friday 19 February 2016 15:59:59 Yury Norov wrote:
> On Fri, Feb 19, 2016 at 09:23:35AM +0100, Arnd Bergmann wrote:
> > On Friday 19 February 2016 01:35:06 Yury Norov wrote:

> > In https://github.com/norov/glibc/commit/5d4290435e428267171ece871539b76e1d079d11
> > you are defining a struct __kernel_stat64 in the glibc. Is this the expected
> > way to do it? I would have thought you'd get the definition from the kernel
> > headers.
> >  
> > 	Arnd
> > 
> 
> Almost all ports define its own struct kernel_stat / kernel_stat64.
> in "kernel_header.h" See mips, spark, alpha, i386... Some also define
> function xstat_conv or similar. With all that defined, it's expected
> that one of generic xstat wrappers will work properly. I tried all,
> and noone got working, so I wrote this hack to make it work somehow. 

I see. I grepped for __kernel_stat64 and couldn't find any other
with that name, as the others tend to us slightly different names.

I would still think there is something wrong if you need to define
your own copy of xstat_conv when the kernel 'struct stat64' is
meant to be usable by user space. Shouldn't this work like any
other 32-bit architecture now?

	Arnd

  reply	other threads:[~2016-02-19 14:06 UTC|newest]

Thread overview: 143+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-14 17:22 [RFC5 PATCH v6 00/21] ILP32 for ARM64 Yury Norov
2016-01-14 17:22 ` Yury Norov
2016-01-14 17:22 ` [PATCH v6 01/21] arm64: ilp32: add documentation on the ILP32 ABI " Yury Norov
2016-01-14 17:22   ` Yury Norov
2016-01-14 17:22 ` [PATCH v6 02/21] arm64: ensure the kernel is compiled for LP64 Yury Norov
2016-01-14 17:22   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 03/21] arm64: rename COMPAT to AARCH32_EL0 in Kconfig Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 04/21] arm64: change some CONFIG_COMPAT over to use CONFIG_AARCH32_EL0 instead Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 05/21] arm64: compat: change config dependences to aarch32 Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 06/21] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64 Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 07/21] thread: move thread bits accessors to separated file Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 08/21] arm64: introduce is_a32_task and is_a32_thread (for AArch32 compat) Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 09/21] arm64: ilp32: add is_ilp32_compat_{task, thread} and TIF_32BIT_AARCH64 Yury Norov
2016-01-14 17:23   ` [PATCH v6 09/21] arm64: ilp32: add is_ilp32_compat_{task,thread} " Yury Norov
2016-01-14 17:23 ` [PATCH v6 10/21] arm64: introduce binfmt_elf32.c Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 11/21] arm64: ilp32: introduce binfmt_ilp32.c Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 12/21] arm64: ptrace: handle ptrace_request differently for aarch32 and ilp32 Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 13/21] arm64:ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 14/21] arm64: signal: wrap struct ucontext, fp and lr with struct sigframe Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 15/21] arm64: signal: share lp64 signal routines to ilp32 Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 16/21] arm64: signal32: move ilp32 and aarch32 common code to separated file Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 17/21] arm64: ilp32: introduce ilp32-specific handlers for sigframe Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-02-29  8:27   ` Andreas Schwab
2016-02-29  8:27     ` Andreas Schwab
2016-01-14 17:23 ` [PATCH v6 18/21] arm64:ilp32: add vdso-ilp32 and use for signal return Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 19/21] arm64:ilp32: add ARM64_ILP32 to Kconfig Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 20/21] all: s390: make compat wrappers the generic solution Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-14 18:11   ` Yury Norov
2016-01-14 18:11     ` Yury Norov
2016-01-15 12:46   ` Heiko Carstens
2016-01-15 12:46     ` Heiko Carstens
2016-01-19 17:52     ` Yury Norov
2016-01-20  8:16       ` Heiko Carstens
2016-01-20  8:16         ` Heiko Carstens
2016-01-20 12:17         ` Yury Norov
2016-01-20 12:17           ` Yury Norov
2016-01-14 17:23 ` [PATCH v6 21/21] arm64: ilp32: wrap syscalls to remove top 32-bit vulnerability Yury Norov
2016-01-14 17:23   ` Yury Norov
2016-01-18 13:18 ` [RFC5 PATCH v6 00/21] ILP32 for ARM64 Zhangjian (Bamvor)
2016-01-18 13:18   ` Zhangjian (Bamvor)
2016-01-18 13:26   ` Andreas Schwab
2016-01-18 13:26     ` Andreas Schwab
2016-01-18 13:41     ` Bamvor Zhang Jian
2016-01-18 13:41       ` Bamvor Zhang Jian
2016-01-29  9:59 ` Zhangjian (Bamvor)
2016-01-29  9:59   ` Zhangjian (Bamvor)
2016-01-29 17:09   ` Yury Norov
2016-01-29 17:09     ` Yury Norov
2016-01-30  4:15     ` Zhangjian (Bamvor)
2016-01-30  4:15       ` Zhangjian (Bamvor)
2016-02-18 22:35       ` Yury Norov
2016-02-18 22:35         ` Yury Norov
2016-02-19  8:23         ` Arnd Bergmann
2016-02-19  8:23           ` Arnd Bergmann
2016-02-19 12:59           ` Yury Norov
2016-02-19 12:59             ` Yury Norov
2016-02-19 14:06             ` Arnd Bergmann [this message]
2016-02-19 14:06               ` Arnd Bergmann
2016-02-29 15:39           ` Yury Norov
2016-02-29 15:39             ` Yury Norov
2016-02-29 16:00           ` Andreas Schwab
2016-02-29 16:00             ` Andreas Schwab
2016-02-29 16:30             ` Arnd Bergmann
2016-02-29 16:30               ` Arnd Bergmann
2016-02-25 10:50         ` Andreas Schwab
2016-02-25 10:50           ` Andreas Schwab
2016-02-25 20:28           ` Yury Norov
2016-02-25 20:28             ` Yury Norov
2016-03-18 10:28             ` Zhangjian (Bamvor)
2016-03-18 10:28               ` Zhangjian (Bamvor)
2016-03-18 15:49               ` Yury Norov
2016-03-18 15:49                 ` Yury Norov
2016-03-18 15:55                 ` Alexander Graf
2016-03-18 15:55                   ` Alexander Graf
2016-03-18 16:46                   ` Yury Norov
2016-03-18 16:46                     ` Yury Norov
2016-03-20  8:12                     ` Zhangjian (Bamvor)
2016-03-20  8:12                       ` Zhangjian (Bamvor)
2016-03-21 11:23                       ` Zhangjian (Bamvor)
2016-03-21 11:23                         ` Zhangjian (Bamvor)
2016-03-21 18:43                         ` Yury Norov
2016-03-21 18:43                           ` Yury Norov
2016-03-22  1:49                           ` Yury Norov
2016-03-22  1:49                             ` Yury Norov
2016-03-21  9:07                 ` Andreas Schwab
2016-03-21  9:07                   ` Andreas Schwab
2016-03-21  9:43                   ` Arnd Bergmann
2016-03-21  9:43                     ` Arnd Bergmann
2016-03-21 10:52                     ` Andreas Schwab
2016-03-21 10:52                       ` Andreas Schwab
2016-03-21 17:02                       ` Arnd Bergmann
2016-03-21 17:02                         ` Arnd Bergmann
2016-03-26 12:36                     ` Zhangjian (Bamvor)
2016-03-26 12:36                       ` Zhangjian (Bamvor)
2016-03-29 10:58                       ` Arnd Bergmann
2016-03-29 10:58                         ` Arnd Bergmann
2016-03-29 12:01                         ` Yury Norov
2016-03-29 12:01                           ` Yury Norov
2016-03-29 12:42                           ` Arnd Bergmann
2016-03-29 12:42                             ` Arnd Bergmann
2016-03-29 13:21                           ` Zhangjian (Bamvor)
2016-03-29 13:21                             ` Zhangjian (Bamvor)
2016-03-29 13:27                             ` Arnd Bergmann
2016-03-29 13:27                               ` Arnd Bergmann
2016-03-29 15:54                               ` Joseph Myers
2016-03-29 15:54                                 ` Joseph Myers
2016-03-29 19:30                                 ` Arnd Bergmann
2016-03-29 19:30                                   ` Arnd Bergmann
2016-03-29 20:15                                   ` Joseph Myers
2016-03-29 20:15                                     ` Joseph Myers
2016-03-29 20:24                                     ` Arnd Bergmann
2016-03-29 20:24                                       ` Arnd Bergmann
2016-03-29 21:00                                       ` Joseph Myers
2016-03-29 21:00                                         ` Joseph Myers
2016-03-29 21:39                                         ` Arnd Bergmann
2016-03-29 21:39                                           ` Arnd Bergmann
2016-03-31  7:35                               ` Zhangjian (Bamvor)
2016-03-31  7:35                                 ` Zhangjian (Bamvor)
2016-03-21 18:40                   ` Yury Norov
2016-03-21 18:40                     ` Yury Norov
2016-03-26 13:08                     ` Zhangjian (Bamvor)
2016-03-26 13:08                       ` Zhangjian (Bamvor)
2016-03-26 13:45                     ` Zhangjian (Bamvor)
2016-03-26 13:45                       ` Zhangjian (Bamvor)
2016-03-26 22:46                       ` Yury Norov
2016-03-26 22:46                         ` Yury Norov

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