next-20161205 build: 3 failures 4 warnings (next-20161205)

next-20161205 build: 3 failures 4 warnings (next-20161205)

[Mark Brown]

On Mon, Dec 05, 2016 at 07:56:06AM +0000, Build bot for Mark Brown wrote:

Today's -next fails to build an arm64 allmodconfig:  

> 	arm64-allmodconfig
> ../arch/arm64/include/asm/probes.h:18:25: fatal error: asm/opcodes.h: No such file or directory

due to bca8f17f57bd76d (arm64: Get rid of asm/opcodes.h) having missed
one reference to the header.
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next-20161205 build: 3 failures 4 warnings (next-20161205)

[Marc Zyngier]

On 05/12/16 10:44, Mark Brown wrote:
> On Mon, Dec 05, 2016 at 07:56:06AM +0000, Build bot for Mark Brown wrote:
> 
> Today's -next fails to build an arm64 allmodconfig:  
> 
>> 	arm64-allmodconfig
>> ../arch/arm64/include/asm/probes.h:18:25: fatal error: asm/opcodes.h: No such file or directory
> 
> due to bca8f17f57bd76d (arm64: Get rid of asm/opcodes.h) having missed
> one reference to the header.

Fix on the list: https://www.spinics.net/lists/arm-kernel/msg546960.html

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...

next-20161205 build: 3 failures 4 warnings (next-20161205)

[Mark Brown]

On Mon, Dec 05, 2016 at 07:56:06AM +0000, Build bot for Mark Brown wrote:

Today's -next fails to build an arm64 allnodconfig and allmodconfig
with:

> 	arm64-allnoconfig
> ../arch/arm64/lib/clear_user.S:33: Error: bad or irreducible absolute expression
> ../arch/arm64/lib/clear_user.S:53: Error: bad or irreducible absolute expression
> ../arch/arm64/lib/clear_user.S:33: Error: attempt to move .org backwards
> ../arch/arm64/lib/clear_user.S:53: Error: attempt to move .org backwards
> ../arch/arm64/lib/copy_from_user.S:67: Error: bad or irreducible absolute expression
> ../arch/arm64/lib/copy_from_user.S:70: Error: bad or irreducible absolute expression
> ../arch/arm64/lib/copy_from_user.S:67: Error: attempt to move .org backwards
> ../arch/arm64/lib/copy_from_user.S:70: Error: attempt to move .org backwards
> ../arch/arm64/lib/copy_in_user.S:68: Error: bad or irreducible absolute expression
> ../arch/arm64/lib/copy_in_user.S:71: Error: bad or irreducible absolute expression
> ../arch/arm64/lib/copy_in_user.S:68: Error: attempt to move .org backwards
> ../arch/arm64/lib/copy_in_user.S:71: Error: attempt to move .org backwards
> ../arch/arm64/lib/copy_to_user.S:66: Error: bad or irreducible absolute expression
> ../arch/arm64/lib/copy_to_user.S:69: Error: bad or irreducible absolute expression
> ../arch/arm64/lib/copy_to_user.S:66: Error: attempt to move .org backwards
> ../arch/arm64/lib/copy_to_user.S:69: Error: attempt to move .org backwards

This was triggered somehow by bca8f17f57bd7 (arm64: Get rid of
asm/opcodes.h) though I didn't figure out how.
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next-20161205 build: 3 failures 4 warnings (next-20161205)

[Marc Zyngier]

On 05/12/16 11:20, Mark Brown wrote:
> On Mon, Dec 05, 2016 at 07:56:06AM +0000, Build bot for Mark Brown wrote:
> 
> Today's -next fails to build an arm64 allnodconfig and allmodconfig
> with:
> 
>> 	arm64-allnoconfig
>> ../arch/arm64/lib/clear_user.S:33: Error: bad or irreducible absolute expression
>> ../arch/arm64/lib/clear_user.S:53: Error: bad or irreducible absolute expression
>> ../arch/arm64/lib/clear_user.S:33: Error: attempt to move .org backwards
>> ../arch/arm64/lib/clear_user.S:53: Error: attempt to move .org backwards
>> ../arch/arm64/lib/copy_from_user.S:67: Error: bad or irreducible absolute expression
>> ../arch/arm64/lib/copy_from_user.S:70: Error: bad or irreducible absolute expression
>> ../arch/arm64/lib/copy_from_user.S:67: Error: attempt to move .org backwards
>> ../arch/arm64/lib/copy_from_user.S:70: Error: attempt to move .org backwards
>> ../arch/arm64/lib/copy_in_user.S:68: Error: bad or irreducible absolute expression
>> ../arch/arm64/lib/copy_in_user.S:71: Error: bad or irreducible absolute expression
>> ../arch/arm64/lib/copy_in_user.S:68: Error: attempt to move .org backwards
>> ../arch/arm64/lib/copy_in_user.S:71: Error: attempt to move .org backwards
>> ../arch/arm64/lib/copy_to_user.S:66: Error: bad or irreducible absolute expression
>> ../arch/arm64/lib/copy_to_user.S:69: Error: bad or irreducible absolute expression
>> ../arch/arm64/lib/copy_to_user.S:66: Error: attempt to move .org backwards
>> ../arch/arm64/lib/copy_to_user.S:69: Error: attempt to move .org backwards
> 
> This was triggered somehow by bca8f17f57bd7 (arm64: Get rid of
> asm/opcodes.h) though I didn't figure out how.

Old and broken gas. I have a workaround stashed there:

http://git.kernel.org/cgit/linux/kernel/git/maz/arm-platforms.git/commit/?h=arm64/standalone.h&id=559f97365362ed9e96f594200020379df46630d8

At least binutils 2.24 and 2.25 are affected, while 2.27 is not.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...

next-20161205 build: 3 failures 4 warnings (next-20161205)

[Mark Brown]

On Mon, Dec 05, 2016 at 03:44:30PM +0000, Marc Zyngier wrote:

> Old and broken gas. I have a workaround stashed there:

> http://git.kernel.org/cgit/linux/kernel/git/maz/arm-platforms.git/commit/?h=arm64/standalone.h&id=559f97365362ed9e96f594200020379df46630d8

> At least binutils 2.24 and 2.25 are affected, while 2.27 is not.

Not that old - this is the Linaro 2015.10 toolchain which wasn't super
new but not exactly from the mists of time either.  Anyway, I updated to
2016.11 (GCC 6.2.1, GAS 2.27)...  let's see what the fallout is like.
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next-20161205 build: 3 failures 4 warnings (next-20161205)

[Bjorn Andersson]

On Mon 05 Dec 07:44 PST 2016, Marc Zyngier wrote:

> On 05/12/16 11:20, Mark Brown wrote:
> > On Mon, Dec 05, 2016 at 07:56:06AM +0000, Build bot for Mark Brown wrote:
> > 
> > Today's -next fails to build an arm64 allnodconfig and allmodconfig
> > with:
> > 
> >> 	arm64-allnoconfig
> >> ../arch/arm64/lib/clear_user.S:33: Error: bad or irreducible absolute expression
> >> ../arch/arm64/lib/clear_user.S:53: Error: bad or irreducible absolute expression
> >> ../arch/arm64/lib/clear_user.S:33: Error: attempt to move .org backwards
> >> ../arch/arm64/lib/clear_user.S:53: Error: attempt to move .org backwards
> >> ../arch/arm64/lib/copy_from_user.S:67: Error: bad or irreducible absolute expression
> >> ../arch/arm64/lib/copy_from_user.S:70: Error: bad or irreducible absolute expression
> >> ../arch/arm64/lib/copy_from_user.S:67: Error: attempt to move .org backwards
> >> ../arch/arm64/lib/copy_from_user.S:70: Error: attempt to move .org backwards
> >> ../arch/arm64/lib/copy_in_user.S:68: Error: bad or irreducible absolute expression
> >> ../arch/arm64/lib/copy_in_user.S:71: Error: bad or irreducible absolute expression
> >> ../arch/arm64/lib/copy_in_user.S:68: Error: attempt to move .org backwards
> >> ../arch/arm64/lib/copy_in_user.S:71: Error: attempt to move .org backwards
> >> ../arch/arm64/lib/copy_to_user.S:66: Error: bad or irreducible absolute expression
> >> ../arch/arm64/lib/copy_to_user.S:69: Error: bad or irreducible absolute expression
> >> ../arch/arm64/lib/copy_to_user.S:66: Error: attempt to move .org backwards
> >> ../arch/arm64/lib/copy_to_user.S:69: Error: attempt to move .org backwards
> > 
> > This was triggered somehow by bca8f17f57bd7 (arm64: Get rid of
> > asm/opcodes.h) though I didn't figure out how.
> 
> Old and broken gas. I have a workaround stashed there:
> 
> http://git.kernel.org/cgit/linux/kernel/git/maz/arm-platforms.git/commit/?h=arm64/standalone.h&id=559f97365362ed9e96f594200020379df46630d8
> 
> At least binutils 2.24 and 2.25 are affected, while 2.27 is not.
> 

Made me realize that the Ubuntu 15.10 release I'm on is deprecated.

If I read the release notes for Ubuntu correctly the 14.04 LTS release
is supported until April 2019, with binutils 2.24. So I would be
surprised if this won't bite quite a bunch of people down the road.

Regards,
Bjorn

next-20161205 build: 3 failures 4 warnings (next-20161205)

[Marc Zyngier]

On 06/12/16 18:10, Bjorn Andersson wrote:
> On Mon 05 Dec 07:44 PST 2016, Marc Zyngier wrote:
> 
>> On 05/12/16 11:20, Mark Brown wrote:
>>> On Mon, Dec 05, 2016 at 07:56:06AM +0000, Build bot for Mark Brown wrote:
>>>
>>> Today's -next fails to build an arm64 allnodconfig and allmodconfig
>>> with:
>>>
>>>> 	arm64-allnoconfig
>>>> ../arch/arm64/lib/clear_user.S:33: Error: bad or irreducible absolute expression
>>>> ../arch/arm64/lib/clear_user.S:53: Error: bad or irreducible absolute expression
>>>> ../arch/arm64/lib/clear_user.S:33: Error: attempt to move .org backwards
>>>> ../arch/arm64/lib/clear_user.S:53: Error: attempt to move .org backwards
>>>> ../arch/arm64/lib/copy_from_user.S:67: Error: bad or irreducible absolute expression
>>>> ../arch/arm64/lib/copy_from_user.S:70: Error: bad or irreducible absolute expression
>>>> ../arch/arm64/lib/copy_from_user.S:67: Error: attempt to move .org backwards
>>>> ../arch/arm64/lib/copy_from_user.S:70: Error: attempt to move .org backwards
>>>> ../arch/arm64/lib/copy_in_user.S:68: Error: bad or irreducible absolute expression
>>>> ../arch/arm64/lib/copy_in_user.S:71: Error: bad or irreducible absolute expression
>>>> ../arch/arm64/lib/copy_in_user.S:68: Error: attempt to move .org backwards
>>>> ../arch/arm64/lib/copy_in_user.S:71: Error: attempt to move .org backwards
>>>> ../arch/arm64/lib/copy_to_user.S:66: Error: bad or irreducible absolute expression
>>>> ../arch/arm64/lib/copy_to_user.S:69: Error: bad or irreducible absolute expression
>>>> ../arch/arm64/lib/copy_to_user.S:66: Error: attempt to move .org backwards
>>>> ../arch/arm64/lib/copy_to_user.S:69: Error: attempt to move .org backwards
>>>
>>> This was triggered somehow by bca8f17f57bd7 (arm64: Get rid of
>>> asm/opcodes.h) though I didn't figure out how.
>>
>> Old and broken gas. I have a workaround stashed there:
>>
>> http://git.kernel.org/cgit/linux/kernel/git/maz/arm-platforms.git/commit/?h=arm64/standalone.h&id=559f97365362ed9e96f594200020379df46630d8
>>
>> At least binutils 2.24 and 2.25 are affected, while 2.27 is not.
>>
> 
> Made me realize that the Ubuntu 15.10 release I'm on is deprecated.
> 
> If I read the release notes for Ubuntu correctly the 14.04 LTS release
> is supported until April 2019, with binutils 2.24. So I would be
> surprised if this won't bite quite a bunch of people down the road.

Catalin has taken a slightly different set of fixes which do address
this problem:

https://git.kernel.org/cgit/linux/kernel/git/arm64/linux.git/commit/?h=for-next/core&id=bbb56c27228d4ad64aca858c5af49d0f2f11c645
https://git.kernel.org/cgit/linux/kernel/git/arm64/linux.git/commit/?h=for-next/core&id=cd9e1927a525f6ce7c0d99c6e038f0a0b9e85176

The build system will warn you that your binutils are broken, and enable
the workaround (which will only result in slightly painful disassembly
for some instructions).

Some of the most visible distros have also other "features", such as
compilers that do not implement basic capabilities on which the kernel
relies for performance (jump labels, for example)...

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...