* [crosstool-ng/crosstool-ng] 1f5906: samples: add aarch64-rpi3-linux-gnueabi
@ 2016-03-03 17:13 Bryan Hundven
2016-03-03 20:33 ` Mike Ray
0 siblings, 1 reply; 6+ messages in thread
From: Bryan Hundven @ 2016-03-03 17:13 UTC (permalink / raw)
To: crossgcc
[-- Attachment #1: Type: text/plain, Size: 1226 bytes --]
Branch: refs/heads/master
Home: https://github.com/crosstool-ng/crosstool-ng
Commit: 1f590667acc1dc1f729c3f4c14612399100f041d
https://github.com/crosstool-ng/crosstool-ng/commit/1f590667acc1dc1f729c3f4c14612399100f041d
Author: Bryan Hundven <bryanhundven@gmail.com>
Date: 2016-03-03 (Thu, 03 Mar 2016)
Changed paths:
A samples/aarch64-rpi3-linux-gnueabi/crosstool.config
A samples/aarch64-rpi3-linux-gnueabi/reported.by
Log Message:
-----------
samples: add aarch64-rpi3-linux-gnueabi
This is a aarch64 raspberry pi 3 sample.
Please test!
Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>
Commit: bd460e8872ddc7dbbdcb09c2c0a18d22936bf698
https://github.com/crosstool-ng/crosstool-ng/commit/bd460e8872ddc7dbbdcb09c2c0a18d22936bf698
Author: Bryan Hundven <bryanhundven@gmail.com>
Date: 2016-03-03 (Thu, 03 Mar 2016)
Changed paths:
A samples/aarch64-rpi3-linux-gnueabi/crosstool.config
A samples/aarch64-rpi3-linux-gnueabi/reported.by
Log Message:
-----------
Merge pull request #362 from bhundven/rpi_aarch64_sample
samples: add aarch64-rpi3-linux-gnueabi
Compare: https://github.com/crosstool-ng/crosstool-ng/compare/0f76cad2f078...bd460e8872dd
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* Re: [crosstool-ng/crosstool-ng] 1f5906: samples: add aarch64-rpi3-linux-gnueabi
2016-03-03 17:13 [crosstool-ng/crosstool-ng] 1f5906: samples: add aarch64-rpi3-linux-gnueabi Bryan Hundven
@ 2016-03-03 20:33 ` Mike Ray
2016-03-04 0:25 ` Bryan Hundven
2016-03-04 10:26 ` Richard Earnshaw (lists)
0 siblings, 2 replies; 6+ messages in thread
From: Mike Ray @ 2016-03-03 20:33 UTC (permalink / raw)
To: crossgcc
On 03/03/2016 17:13, Bryan Hundven wrote:
> Branch: refs/heads/master
> Home: https://github.com/crosstool-ng/crosstool-ng
> Commit: 1f590667acc1dc1f729c3f4c14612399100f041d
> https://github.com/crosstool-ng/crosstool-ng/commit/1f590667acc1dc1f729c3f4c14612399100f041d
> Author: Bryan Hundven <bryanhundven@gmail.com>
> Date: 2016-03-03 (Thu, 03 Mar 2016)
>
> Changed paths:
> A samples/aarch64-rpi3-linux-gnueabi/crosstool.config
> A samples/aarch64-rpi3-linux-gnueabi/reported.by
>
> Log Message:
> -----------
> samples: add aarch64-rpi3-linux-gnueabi
>
> This is a aarch64 raspberry pi 3 sample.
>
> Please test!
>
> Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>
>
>
> Commit: bd460e8872ddc7dbbdcb09c2c0a18d22936bf698
> https://github.com/crosstool-ng/crosstool-ng/commit/bd460e8872ddc7dbbdcb09c2c0a18d22936bf698
> Author: Bryan Hundven <bryanhundven@gmail.com>
> Date: 2016-03-03 (Thu, 03 Mar 2016)
>
> Changed paths:
> A samples/aarch64-rpi3-linux-gnueabi/crosstool.config
> A samples/aarch64-rpi3-linux-gnueabi/reported.by
>
> Log Message:
> -----------
> Merge pull request #362 from bhundven/rpi_aarch64_sample
>
> samples: add aarch64-rpi3-linux-gnueabi
>
>
> Compare: https://github.com/crosstool-ng/crosstool-ng/compare/0f76cad2f078...bd460e8872dd
>
>
>
> --
> For unsubscribe information see http://sourceware.org/lists.html#faq
>
Hello.
Toolchain built and helloworld app compiled.
Not sure if you intended for the name of the sample to be prefixed
'aarch' instead of 'arch':
aarch64-rpi3-linux-gnueabi/
Output of `file helloworld`:
helloworld: ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV),
dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, for
GNU/Linux 4.0.4, not stripped
Built on 64-bit Debian Jessie.
Of course helloworld won't run on my Pi3 with 32-bit Raspbian.
Did you intend this sample to not be hard-float? (I don't know whether
the Cortex A53 is HF or not).
There is some debate on the Foundation site whether running 64-bit with
only 1GB of RAM is much of a gain but it will be interesting finding out.
Foundation forum mods and developers haven't mentioned whether
boot-loader needs to be 64-bit as well.
Mike
--
Michael A. Ray
Analyst/Programmer
Witley, Surrey, South-east UK
Eyes-free Linux:
http://eyesfreelinux.ninja/
Raspberry VI:
http://www.raspberryvi.org/
--
For unsubscribe information see http://sourceware.org/lists.html#faq
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [crosstool-ng/crosstool-ng] 1f5906: samples: add aarch64-rpi3-linux-gnueabi
2016-03-03 20:33 ` Mike Ray
@ 2016-03-04 0:25 ` Bryan Hundven
2016-03-04 0:31 ` Bryan Hundven
2016-03-04 10:26 ` Richard Earnshaw (lists)
1 sibling, 1 reply; 6+ messages in thread
From: Bryan Hundven @ 2016-03-04 0:25 UTC (permalink / raw)
To: mike; +Cc: crossgcc
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> On Mar 3, 2016, at 12:33 PM, Mike Ray <mike@raspberryvi.org> wrote:
>
> On 03/03/2016 17:13, Bryan Hundven wrote:
>> Branch: refs/heads/master
>> Home: https://github.com/crosstool-ng/crosstool-ng
>> Commit: 1f590667acc1dc1f729c3f4c14612399100f041d
>> https://github.com/crosstool-ng/crosstool-ng/commit/1f590667acc1dc1f729c3f4c14612399100f041d
>> Author: Bryan Hundven <bryanhundven@gmail.com>
>> Date: 2016-03-03 (Thu, 03 Mar 2016)
>>
>> Changed paths:
>> A samples/aarch64-rpi3-linux-gnueabi/crosstool.config
>> A samples/aarch64-rpi3-linux-gnueabi/reported.by
>>
>> Log Message:
>> -----------
>> samples: add aarch64-rpi3-linux-gnueabi
>>
>> This is a aarch64 raspberry pi 3 sample.
>>
>> Please test!
>>
>> Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>
>>
>>
>> Commit: bd460e8872ddc7dbbdcb09c2c0a18d22936bf698
>> https://github.com/crosstool-ng/crosstool-ng/commit/bd460e8872ddc7dbbdcb09c2c0a18d22936bf698
>> Author: Bryan Hundven <bryanhundven@gmail.com>
>> Date: 2016-03-03 (Thu, 03 Mar 2016)
>>
>> Changed paths:
>> A samples/aarch64-rpi3-linux-gnueabi/crosstool.config
>> A samples/aarch64-rpi3-linux-gnueabi/reported.by
>>
>> Log Message:
>> -----------
>> Merge pull request #362 from bhundven/rpi_aarch64_sample
>>
>> samples: add aarch64-rpi3-linux-gnueabi
>>
>>
>> Compare: https://github.com/crosstool-ng/crosstool-ng/compare/0f76cad2f078...bd460e8872dd
>>
>>
>>
>> --
>> For unsubscribe information see http://sourceware.org/lists.html#faq
>>
>
> Hello.
>
> Toolchain built and helloworld app compiled.
>
> Not sure if you intended for the name of the sample to be prefixed
> 'aarch' instead of 'arch':
>
> aarch64-rpi3-linux-gnueabi/
Yes, aarch64. It’s “arm arch 64” ;)
They also call arm 32-bit aarch32, but config.sub still search for arm* instead of aarch32.
>
> Output of `file helloworld`:
>
> helloworld: ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV),
> dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, for
> GNU/Linux 4.0.4, not stripped
Looks good!
>
> Built on 64-bit Debian Jessie.
>
> Of course helloworld won't run on my Pi3 with 32-bit Raspbian.
Right.
>
> Did you intend this sample to not be hard-float? (I don't know whether
> the Cortex A53 is HF or not).
Dang, I new I felt like I was jumping the gun when I merged. I’ll fix that.
>
> There is some debate on the Foundation site whether running 64-bit with
> only 1GB of RAM is much of a gain but it will be interesting finding out.
It’s true. There really isn’t much bonus to running in 64-bit mode without more memory.
>
> Foundation forum mods and developers haven't mentioned whether
> boot-loader needs to be 64-bit as well.
Are they releasing 64-bit firmware files?
>
> Mike
Cheers,
-Bryan
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [crosstool-ng/crosstool-ng] 1f5906: samples: add aarch64-rpi3-linux-gnueabi
2016-03-04 0:25 ` Bryan Hundven
@ 2016-03-04 0:31 ` Bryan Hundven
2016-03-04 0:37 ` Mike Ray
0 siblings, 1 reply; 6+ messages in thread
From: Bryan Hundven @ 2016-03-04 0:31 UTC (permalink / raw)
To: mike; +Cc: crossgcc
[-- Attachment #1: Type: text/plain, Size: 3242 bytes --]
> On Mar 3, 2016, at 4:25 PM, Bryan Hundven <bryanhundven@gmail.com> wrote:
>
>>
>> On Mar 3, 2016, at 12:33 PM, Mike Ray <mike@raspberryvi.org> wrote:
>>
>> On 03/03/2016 17:13, Bryan Hundven wrote:
>>> Branch: refs/heads/master
>>> Home: https://github.com/crosstool-ng/crosstool-ng
>>> Commit: 1f590667acc1dc1f729c3f4c14612399100f041d
>>> https://github.com/crosstool-ng/crosstool-ng/commit/1f590667acc1dc1f729c3f4c14612399100f041d
>>> Author: Bryan Hundven <bryanhundven@gmail.com>
>>> Date: 2016-03-03 (Thu, 03 Mar 2016)
>>>
>>> Changed paths:
>>> A samples/aarch64-rpi3-linux-gnueabi/crosstool.config
>>> A samples/aarch64-rpi3-linux-gnueabi/reported.by
>>>
>>> Log Message:
>>> -----------
>>> samples: add aarch64-rpi3-linux-gnueabi
>>>
>>> This is a aarch64 raspberry pi 3 sample.
>>>
>>> Please test!
>>>
>>> Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>
>>>
>>>
>>> Commit: bd460e8872ddc7dbbdcb09c2c0a18d22936bf698
>>> https://github.com/crosstool-ng/crosstool-ng/commit/bd460e8872ddc7dbbdcb09c2c0a18d22936bf698
>>> Author: Bryan Hundven <bryanhundven@gmail.com>
>>> Date: 2016-03-03 (Thu, 03 Mar 2016)
>>>
>>> Changed paths:
>>> A samples/aarch64-rpi3-linux-gnueabi/crosstool.config
>>> A samples/aarch64-rpi3-linux-gnueabi/reported.by
>>>
>>> Log Message:
>>> -----------
>>> Merge pull request #362 from bhundven/rpi_aarch64_sample
>>>
>>> samples: add aarch64-rpi3-linux-gnueabi
>>>
>>>
>>> Compare: https://github.com/crosstool-ng/crosstool-ng/compare/0f76cad2f078...bd460e8872dd
>>>
>>>
>>>
>>> --
>>> For unsubscribe information see http://sourceware.org/lists.html#faq
>>>
>>
>> Hello.
>>
>> Toolchain built and helloworld app compiled.
>>
>> Not sure if you intended for the name of the sample to be prefixed
>> 'aarch' instead of 'arch':
>>
>> aarch64-rpi3-linux-gnueabi/
>
> Yes, aarch64. It’s “arm arch 64” ;)
> They also call arm 32-bit aarch32, but config.sub still search for arm* instead of aarch32.
>
>>
>> Output of `file helloworld`:
>>
>> helloworld: ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV),
>> dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, for
>> GNU/Linux 4.0.4, not stripped
>
> Looks good!
>
>>
>> Built on 64-bit Debian Jessie.
>>
>> Of course helloworld won't run on my Pi3 with 32-bit Raspbian.
>
> Right.
>
>>
>> Did you intend this sample to not be hard-float? (I don't know whether
>> the Cortex A53 is HF or not).
>
> Dang, I new I felt like I was jumping the gun when I merged. I’ll fix that.
And that is a nope:
(Quoting ARM.com)
Hard-float ABI by default in ARMv8-A
So we should be good here.
>
>>
>> There is some debate on the Foundation site whether running 64-bit with
>> only 1GB of RAM is much of a gain but it will be interesting finding out.
>
> It’s true. There really isn’t much bonus to running in 64-bit mode without more memory.
>
>>
>> Foundation forum mods and developers haven't mentioned whether
>> boot-loader needs to be 64-bit as well.
>
> Are they releasing 64-bit firmware files?
>
>>
>> Mike
>
> Cheers,
>
> -Bryan
Cheers,
-Bryan
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [crosstool-ng/crosstool-ng] 1f5906: samples: add aarch64-rpi3-linux-gnueabi
2016-03-04 0:31 ` Bryan Hundven
@ 2016-03-04 0:37 ` Mike Ray
0 siblings, 0 replies; 6+ messages in thread
From: Mike Ray @ 2016-03-04 0:37 UTC (permalink / raw)
To: crossgcc
On 04/03/2016 00:31, Bryan Hundven wrote:
>
>> On Mar 3, 2016, at 4:25 PM, Bryan Hundven <bryanhundven@gmail.com> wrote:
>>
>>>
>>> On Mar 3, 2016, at 12:33 PM, Mike Ray <mike@raspberryvi.org> wrote:
>>>
>>> On 03/03/2016 17:13, Bryan Hundven wrote:
>>>> Branch: refs/heads/master
>>>> Home: https://github.com/crosstool-ng/crosstool-ng
>>>> Commit: 1f590667acc1dc1f729c3f4c14612399100f041d
>>>> https://github.com/crosstool-ng/crosstool-ng/commit/1f590667acc1dc1f729c3f4c14612399100f041d
>>>> Author: Bryan Hundven <bryanhundven@gmail.com>
>>>> Date: 2016-03-03 (Thu, 03 Mar 2016)
>>>>
>>>> Changed paths:
>>>> A samples/aarch64-rpi3-linux-gnueabi/crosstool.config
>>>> A samples/aarch64-rpi3-linux-gnueabi/reported.by
>>>>
>>>> Log Message:
>>>> -----------
>>>> samples: add aarch64-rpi3-linux-gnueabi
>>>>
>>>> This is a aarch64 raspberry pi 3 sample.
>>>>
>>>> Please test!
>>>>
>>>> Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>
>>>>
>>>>
>>>> Commit: bd460e8872ddc7dbbdcb09c2c0a18d22936bf698
>>>> https://github.com/crosstool-ng/crosstool-ng/commit/bd460e8872ddc7dbbdcb09c2c0a18d22936bf698
>>>> Author: Bryan Hundven <bryanhundven@gmail.com>
>>>> Date: 2016-03-03 (Thu, 03 Mar 2016)
>>>>
>>>> Changed paths:
>>>> A samples/aarch64-rpi3-linux-gnueabi/crosstool.config
>>>> A samples/aarch64-rpi3-linux-gnueabi/reported.by
>>>>
>>>> Log Message:
>>>> -----------
>>>> Merge pull request #362 from bhundven/rpi_aarch64_sample
>>>>
>>>> samples: add aarch64-rpi3-linux-gnueabi
>>>>
>>>>
>>>> Compare: https://github.com/crosstool-ng/crosstool-ng/compare/0f76cad2f078...bd460e8872dd
>>>>
>>>>
>>>>
>>>> --
>>>> For unsubscribe information see http://sourceware.org/lists.html#faq
>>>>
>>>
>>> Hello.
>>>
>>> Toolchain built and helloworld app compiled.
>>>
>>> Not sure if you intended for the name of the sample to be prefixed
>>> 'aarch' instead of 'arch':
>>>
>>> aarch64-rpi3-linux-gnueabi/
>>
>> Yes, aarch64. It’s “arm arch 64†;)
>> They also call arm 32-bit aarch32, but config.sub still search for arm* instead of aarch32.
>>
>>>
>>> Output of `file helloworld`:
>>>
>>> helloworld: ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV),
>>> dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, for
>>> GNU/Linux 4.0.4, not stripped
>>
>> Looks good!
>>
>>>
>>> Built on 64-bit Debian Jessie.
>>>
>>> Of course helloworld won't run on my Pi3 with 32-bit Raspbian.
>>
>> Right.
>>
>>>
>>> Did you intend this sample to not be hard-float? (I don't know whether
>>> the Cortex A53 is HF or not).
>>
>> Dang, I new I felt like I was jumping the gun when I merged. I’ll fix that.
>
> And that is a nope:
> (Quoting ARM.com)
> Hard-float ABI by default in ARMv8-A
>
> So we should be good here.
>
>>
>>>
>>> There is some debate on the Foundation site whether running 64-bit with
>>> only 1GB of RAM is much of a gain but it will be interesting finding out.
>>
>> It’s true. There really isn’t much bonus to running in 64-bit mode without more memory.
>>
>>>
>>> Foundation forum mods and developers haven't mentioned whether
>>> boot-loader needs to be 64-bit as well.
>>
>> Are they releasing 64-bit firmware files?
>>
>>>
>>> Mike
>>
>> Cheers,
>>
>> -Bryan
>
> Cheers,
>
> -Bryan
>
I haven't seen anything on the Foundation forum pages that suggest there
are any plans at the moment to do so, apart from someone saying the
'Raspbian guys are investigating the possibility".
I have no idea whether the boot-loader is bitness-independent or not,
but I found no suggestion it isn't.
I don't know much about the finer points of architectures but I will
give a kernel compile a go (when I have recreated the toolchain with HF)
just for the hell of it. It'll probably crash and burn.
Mike
--
Michael A. Ray
Analyst/Programmer
Witley, Surrey, South-east UK
Eyes-free Linux:
http://eyesfreelinux.ninja/
Raspberry VI:
http://www.raspberryvi.org/
--
For unsubscribe information see http://sourceware.org/lists.html#faq
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [crosstool-ng/crosstool-ng] 1f5906: samples: add aarch64-rpi3-linux-gnueabi
2016-03-03 20:33 ` Mike Ray
2016-03-04 0:25 ` Bryan Hundven
@ 2016-03-04 10:26 ` Richard Earnshaw (lists)
1 sibling, 0 replies; 6+ messages in thread
From: Richard Earnshaw (lists) @ 2016-03-04 10:26 UTC (permalink / raw)
To: mike, crossgcc
On 03/03/16 20:33, Mike Ray wrote:
> Foundation forum mods and developers haven't mentioned whether
> boot-loader needs to be 64-bit as well.
In common with other 64-it systems, like x86 for example, to run a
64-bit application you need a 64-bit operating system, and to run a
64-bit operating system you need a 64-bit boot-loader.
The privilege levels in the system only support running 64-bit at one
privilege level if the level above it is running at 64-bit; and you can
only switch states as you enter a privilege level, so if your top-level
boot code isn't 64-bit you'll never be able to get back to that state.
R.
--
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2016-03-03 17:13 [crosstool-ng/crosstool-ng] 1f5906: samples: add aarch64-rpi3-linux-gnueabi Bryan Hundven
2016-03-03 20:33 ` Mike Ray
2016-03-04 0:25 ` Bryan Hundven
2016-03-04 0:31 ` Bryan Hundven
2016-03-04 0:37 ` Mike Ray
2016-03-04 10:26 ` Richard Earnshaw (lists)
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