linux-kernel - Re: nds32 build failures

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Message-ID: <a009bde1-c2d5-02ad-91ae-e2af2dc9f789@roeck-us.net>
Date:   Mon, 16 Apr 2018 06:22:01 -0700
From:   Guenter Roeck <private@...ck-us.net>
To:     Greentime Hu <green.hu@...il.com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Vincent Chen <vincentc@...estech.com>,
        Greentime Hu <greentime@...estech.com>,
        Arnd Bergmann <arnd@...db.de>, kito.cheng@...il.com,
        wuiw@...estech.com
Subject: Re: nds32 build failures

On 04/16/2018 02:06 AM, Greentime Hu wrote:
> 2018-04-16 11:58 GMT+08:00 Guenter Roeck <private@...ck-us.net>:
>> I thought I should give the brand new architecture a try. Unfortunately,
>> that was not very successful.
>>
>> Build reference: v4.17-rc1
>> gcc version: nds32le-elf-gcc (GCC) 7.3.0
>>
>> Building nds32:defconfig ... failed
>>
>> arch/nds32/include/asm/nds32.h: In function 'GIE_ENABLE':
>> arch/nds32/include/asm/nds32.h:25:2: error: implicit declaration of function
>> '__nds32__gie_en'; did you mean '__nds32__'?
>>
>> arch/nds32/include/asm/nds32.h: In function 'CACHE_SET':
>> arch/nds32/include/asm/nds32.h:38:18: error: implicit declaration of
>> function '__nds32__mfsr'; did you mean '__nds32__'?
>>
>> arch/nds32/include/asm/nds32.h:38:32: error: 'NDS32_SR_ICM_CFG' undeclared
>>
>> arch/nds32/include/asm/nds32.h:41:32: error: 'NDS32_SR_DCM_CFG'
>>
>> Am I missing something ?
>>
> Hi, Guenter:
>
> This built failure is because the toolchain version you used is not
> supported the latest intrinsic function/macro.
> We are sending the latest patchset now and we expect the whole new
> features will be supported in gcc8.0.0 and binutil2.31+.
>
> If you'd like to get these new features of toolchain, you may use the
> github version.
> This is the built-script repo. https://github.com/andestech/build_script.git
>
Hmm. How comes that the defines are not there ? Also, is nds32_intrinsic.h supposed to be auto-generated ?

The toolchain as provided isn't usable for me since it is not position independent.

Arnd, it might make sense to drop the nds32 toolchain from kernel.org; its presence is at best misleading.

Guenter