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From: Arnd Bergmann <arnd@arndb.de>
To: Greentime Hu <green.hu@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
	Greentime <greentime@andestech.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Jason Cooper <jason@lakedaemon.net>,
	Marc Zyngier <marc.zyngier@arm.com>,
	Rob Herring <robh+dt@kernel.org>,
	Networking <netdev@vger.kernel.org>,
	Vincent Chen <vincentc@andestech.com>
Subject: Re: [PATCH 26/31] nds32: Build infrastructure
Date: Thu, 16 Nov 2017 11:25:45 +0100	[thread overview]
Message-ID: <CAK8P3a3DBbCeqvQeS4sdG8tzAvvgk72EDA7oDfeQDL1-7bnzkg@mail.gmail.com> (raw)
In-Reply-To: <CAEbi=3d=SNk5gWB=JAB3babeyJn1A=GcDK3RChgKMJC+VA3rZw@mail.gmail.com>

On Thu, Nov 16, 2017 at 11:03 AM, Greentime Hu <green.hu@gmail.com> wrote:
> 2017-11-13 18:45 GMT+08:00 Geert Uytterhoeven <geert@linux-m68k.org>:
>> Given the checks for __NDS32_EB__, NDS32 can be either big or little endian,
>> so you should have (excatly one of) CPU_BIG_ENDIAN or CPU_LITTLE_ENDIAN set.
>
> Thanks.
> I will check if we need this config or not and update in the next version patch.

I think we have one architecture in the kernel that determines endianess from
the way that the toolchain is built. What all the others do it to have a Kconfig
option, at least CONFIG_CPU_BIG_ENDIAN that is used to pass -mbig-endian
or -mlittle-endian to the compiler. You should do it that way so you can use
any toolchain with any kernel configuration.

       Arnd

  reply	other threads:[~2017-11-16 10:26 UTC|newest]

Thread overview: 116+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-08  5:54 [PATCH 00/31] Andes(nds32) Linux Kernel Port Greentime Hu
2017-11-08  5:54 ` [PATCH 01/31] nds32: Assembly macros and definitions Greentime Hu
2017-11-08  5:54 ` [PATCH 02/31] nds32: Kernel booting and initialization Greentime Hu
2017-11-08 13:38   ` Rob Herring
2017-11-09  9:49     ` Greentime Hu
2017-11-08  5:54 ` [PATCH 03/31] nds32: Support early_printk Greentime Hu
2017-11-08  9:47   ` Tobias Klauser
2017-11-09  7:19     ` Greentime Hu
2017-11-08  5:54 ` [PATCH 04/31] nds32: Exception handling Greentime Hu
2017-11-08  8:23   ` Arnd Bergmann
     [not found]     ` <E26F4CF8B7DDDB4383A6C2D78D5C3CD56B4974CE@ATCPCS16.andestech.com>
2017-11-13 10:54       ` Fwd: FW: " Vincent Chen
2017-11-08  5:54 ` [PATCH 05/31] nds32: MMU definitions Greentime Hu
2017-11-08  8:36   ` Arnd Bergmann
2017-11-08  8:46     ` Greentime Hu
2017-11-08  5:54 ` [PATCH 06/31] nds32: MMU initialization Greentime Hu
2017-11-08  5:54 ` [PATCH 07/31] nds32: MMU fault handling and page table management Greentime Hu
2017-11-08  5:54 ` [PATCH 08/31] nds32: Cache and TLB routines Greentime Hu
2017-11-08  8:45   ` Arnd Bergmann
2017-11-08  9:01     ` Greentime Hu
2017-11-08  5:54 ` [PATCH 09/31] nds32: Process management Greentime Hu
2017-11-08  5:54 ` [PATCH 10/31] nds32: IRQ handling Greentime Hu
2017-11-08  8:49   ` Arnd Bergmann
2017-11-08  9:06     ` Greentime Hu
2017-11-08  5:54 ` [PATCH 11/31] nds32: Atomic operations Greentime Hu
2017-11-08  8:54   ` Arnd Bergmann
2017-11-08  9:32     ` vincentc
2017-11-08  9:32       ` vincentc
2017-11-20 14:29   ` Will Deacon
2017-11-22  3:02     ` Vincent Chen
2017-11-08  5:55 ` [PATCH 12/31] nds32: Device specific operations Greentime Hu
2017-11-08  9:04   ` Arnd Bergmann
2017-11-09  7:04     ` Greentime Hu
2017-11-10 16:07       ` Greentime Hu
2017-11-10 16:14         ` Arnd Bergmann
2017-11-22 10:02           ` Greentime Hu
2017-11-08  5:55 ` [PATCH 13/31] nds32: DMA mapping API Greentime Hu
2017-11-08  9:09   ` Arnd Bergmann
2017-11-09  7:12     ` Greentime Hu
2017-11-09 10:14       ` Arnd Bergmann
2017-11-10  8:13         ` Greentime Hu
2017-11-08  5:55 ` [PATCH 14/31] nds32: ELF definitions Greentime Hu
2017-11-08  5:55 ` [PATCH 15/31] nds32: System calls handling Greentime Hu
2017-11-08  9:30   ` Arnd Bergmann
     [not found]     ` <E26F4CF8B7DDDB4383A6C2D78D5C3CD56B497241@ATCPCS16.andestech.com>
2017-11-13  2:51       ` Fwd: FW: " Vincent Chen
2017-11-13 11:42         ` Arnd Bergmann
2017-11-22  3:13           ` Vincent Chen
2017-11-08  5:55 ` [PATCH 16/31] nds32: VDSO support Greentime Hu
2017-11-08  9:37   ` Arnd Bergmann
2017-11-08 20:00     ` Deepa Dinamani
2017-11-08 20:06       ` Arnd Bergmann
2017-11-08 20:14         ` Deepa Dinamani
2017-11-08  5:55 ` [PATCH 17/31] nds32: Signal handling support Greentime Hu
2017-11-09  1:26   ` Al Viro
     [not found]     ` <E26F4CF8B7DDDB4383A6C2D78D5C3CD56B497460@ATCPCS16.andestech.com>
2017-11-13  2:34       ` Fwd: FW: " Vincent Chen
2017-11-08  5:55 ` [PATCH 18/31] nds32: Library functions Greentime Hu
2017-11-08  9:45   ` Arnd Bergmann
2017-11-09  0:40   ` Al Viro
     [not found]     ` <E26F4CF8B7DDDB4383A6C2D78D5C3CD56B497559@ATCPCS16.andestech.com>
2017-11-14  4:47       ` Fwd: FW: " Vincent Chen
2017-11-18  2:44         ` Al Viro
2017-11-08  5:55 ` [PATCH 19/31] nds32: Debugging support Greentime Hu
2017-11-08  5:55 ` [PATCH 20/31] nds32: L2 cache support Greentime Hu
2017-11-08  9:48   ` Arnd Bergmann
2017-11-09  7:24     ` Greentime Hu
2017-11-08  5:55 ` [PATCH 21/31] nds32: Loadable modules Greentime Hu
2017-11-08  5:55 ` [PATCH 22/31] nds32: Generic timers support Greentime Hu
2017-11-08  5:55 ` [PATCH 23/31] nds32: Device tree support Greentime Hu
2017-11-08  9:53   ` Arnd Bergmann
2017-11-09  7:48     ` Greentime Hu
2017-11-08  5:55 ` [PATCH 24/31] nds32: Miscellaneous header files Greentime Hu
2017-11-08  9:57   ` Arnd Bergmann
2017-11-08  5:55 ` [PATCH 25/31] nds32: defconfig Greentime Hu
2017-11-08 10:03   ` Arnd Bergmann
2017-11-09  8:00     ` Greentime Hu
2017-11-09 10:20       ` Arnd Bergmann
2017-11-10  8:16         ` Greentime Hu
2017-11-08  5:55 ` [PATCH 26/31] nds32: Build infrastructure Greentime Hu
2017-11-08 10:16   ` Arnd Bergmann
2017-11-09  9:02     ` Greentime Hu
2017-11-09 10:33       ` Arnd Bergmann
2017-11-10  8:26         ` Greentime Hu
2017-11-17 12:39           ` Greentime Hu
2017-11-17 12:50             ` Arnd Bergmann
2017-11-17 13:50               ` Greentime Hu
2017-11-13 10:45     ` Geert Uytterhoeven
2017-11-13 10:45       ` Geert Uytterhoeven
2017-11-16 10:03       ` Greentime Hu
2017-11-16 10:25         ` Arnd Bergmann [this message]
2017-11-17 13:53           ` Greentime Hu
2017-11-08  5:55 ` [PATCH 27/31] dt-bindings: interrupt-controller: Andestech Internal Vector Interrupt Controller Greentime Hu
2017-11-08 13:25   ` Rob Herring
2017-11-09  9:43     ` Greentime Hu
2017-11-08  5:55 ` [PATCH 28/31] irqchip: Andestech Internal Vector Interrupt Controller driver Greentime Hu
2017-11-08 14:24   ` Marc Zyngier
2017-11-09 10:10     ` Greentime Hu
2017-11-08  5:55 ` [PATCH 29/31] MAINTAINERS: Add nds32 Greentime Hu
2017-11-08 13:31   ` Rob Herring
2017-11-09  9:46     ` Greentime Hu
2017-11-09 10:36       ` Arnd Bergmann
2017-11-14 15:39         ` Joe Perches
2017-11-16 12:22           ` Greentime Hu
2017-11-08  5:55 ` [PATCH 30/31] dt-bindings: nds32 CPU Bindings Greentime Hu
2017-11-08 13:18   ` Rob Herring
2017-11-09  9:39     ` Greentime Hu
2017-11-09 13:57       ` Rob Herring
2017-11-09 13:57         ` Rob Herring
2017-11-10  6:22         ` Greentime Hu
2017-11-10  8:25           ` Arnd Bergmann
2017-11-10  8:43             ` Greentime Hu
2017-11-10  8:43               ` Greentime Hu
2017-11-08  5:55 ` [PATCH 31/31] net: faraday add nds32 support Greentime Hu
2017-11-08  8:32 ` [PATCH 00/31] Andes(nds32) Linux Kernel Port David Howells
2017-11-08  8:41   ` Greentime Hu
2017-11-08 10:18     ` Arnd Bergmann
2017-11-09  9:26       ` Greentime Hu
2017-11-08 10:26 ` Arnd Bergmann
2017-11-09  9:33   ` Greentime Hu

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