[BISECT] ARM build errors on GCC v6.2 (crypto: arm/aes - replace scalar AES cipher)

[BISECT] ARM build errors on GCC v6.2 (crypto: arm/aes - replace scalar AES cipher)

[Krzysztof Kozlowski]

Hi,

allyesconfig and multi_v7_defconfig fail to build on recent linux-next
on GCC 6.2.0.

Errors:
../arch/arm/crypto/aes-cipher-core.S: Assembler messages:
../arch/arm/crypto/aes-cipher-core.S:21: Error: selected processor does not support `tt .req ip' in ARM mode
../arch/arm/crypto/aes-cipher-core.S:174: Error: ARM register expected -- `movw tt,#:lower16:crypto_ft_tab'
../arch/arm/crypto/aes-cipher-core.S:174: Error: ARM register expected -- `movt tt,#:upper16:crypto_ft_tab'

Compiler: arm-linux-gnueabi-gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005

Git bisect pointed to:
first bad commit: [81edb42629758bacdf813dd5e4542ae26e3ad73a] crypto: arm/aes - replace scalar AES cipher

Best regards,
Krzysztof

Re: [BISECT] ARM build errors on GCC v6.2 (crypto: arm/aes - replace scalar AES cipher)

[Ard Biesheuvel]

On 14 January 2017 at 14:24, Krzysztof Kozlowski <krzk@kernel.org> wrote:
> Hi,
>
> allyesconfig and multi_v7_defconfig fail to build on recent linux-next
> on GCC 6.2.0.
>
> Errors:
> ../arch/arm/crypto/aes-cipher-core.S: Assembler messages:
> ../arch/arm/crypto/aes-cipher-core.S:21: Error: selected processor does not support `tt .req ip' in ARM mode
> ../arch/arm/crypto/aes-cipher-core.S:174: Error: ARM register expected -- `movw tt,#:lower16:crypto_ft_tab'
> ../arch/arm/crypto/aes-cipher-core.S:174: Error: ARM register expected -- `movt tt,#:upper16:crypto_ft_tab'
>
> Compiler: arm-linux-gnueabi-gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
>
> Git bisect pointed to:
> first bad commit: [81edb42629758bacdf813dd5e4542ae26e3ad73a] crypto: arm/aes - replace scalar AES cipher
>

Fixed in

https://git.kernel.org/cgit/linux/kernel/git/herbert/cryptodev-2.6.git/commit/?id=658fa754cd07

which should turn up in the next -next

Re: [BISECT] ARM build errors on GCC v6.2 (crypto: arm/aes - replace scalar AES cipher)

[Russell King - ARM Linux]

On Sat, Jan 14, 2017 at 04:24:35PM +0200, Krzysztof Kozlowski wrote:
> Hi,
> 
> allyesconfig and multi_v7_defconfig fail to build on recent linux-next
> on GCC 6.2.0.
> 
> Errors:
> ../arch/arm/crypto/aes-cipher-core.S: Assembler messages:
> ../arch/arm/crypto/aes-cipher-core.S:21: Error: selected processor does not support `tt .req ip' in ARM mode
> ../arch/arm/crypto/aes-cipher-core.S:174: Error: ARM register expected -- `movw tt,#:lower16:crypto_ft_tab'
> ../arch/arm/crypto/aes-cipher-core.S:174: Error: ARM register expected -- `movt tt,#:upper16:crypto_ft_tab'
> 
> Compiler: arm-linux-gnueabi-gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005

It's worth pointing out that _assembler_ messages come from _binutils_
rather than _gcc_.   Please advise which version of _binutils_ you
are using.  Thanks.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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Re: [BISECT] ARM build errors on GCC v6.2 (crypto: arm/aes - replace scalar AES cipher)

[Krzysztof Kozlowski]

On Sat, Jan 14, 2017 at 06:20:12PM +0000, Russell King - ARM Linux wrote:
> On Sat, Jan 14, 2017 at 04:24:35PM +0200, Krzysztof Kozlowski wrote:
> > Hi,
> > 
> > allyesconfig and multi_v7_defconfig fail to build on recent linux-next
> > on GCC 6.2.0.
> > 
> > Errors:
> > ../arch/arm/crypto/aes-cipher-core.S: Assembler messages:
> > ../arch/arm/crypto/aes-cipher-core.S:21: Error: selected processor does not support `tt .req ip' in ARM mode
> > ../arch/arm/crypto/aes-cipher-core.S:174: Error: ARM register expected -- `movw tt,#:lower16:crypto_ft_tab'
> > ../arch/arm/crypto/aes-cipher-core.S:174: Error: ARM register expected -- `movt tt,#:upper16:crypto_ft_tab'
> > 
> > Compiler: arm-linux-gnueabi-gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
> 
> It's worth pointing out that _assembler_ messages come from _binutils_
> rather than _gcc_.   Please advise which version of _binutils_ you
> are using.  Thanks.

Ah, yes, so the binutils 2.27 (Ubuntu package: 2.27-8ubuntu2).

However Ard mentioned that this is already fixed.

Best regards,
Krzysztof