Re: [PATCH libevl v2] build: add initial RISC-V support

Sorry for the noise this was not meant to land on the ML.

On 7/9/26 18:36, Tobias Schaffner wrote:
> Click on a legend element to toggle display of that core, ctrl-click 
> inverts display, shift-click enables all.
> 
> Data to construct the above plot have been generated using the RT test 
> utility cyclictest.
> Unexpectedly long latencies may be caused by SMIs
> Total number of samples: 100 million
> Resolution of latency scale: normal
> Duration: 5 hours, 33 minutes, lowest P state: performance
> 
> On 7/9/26 17:32, Tobias Schaffner wrote:
>>
>>
>> On 7/9/26 17:17, Florian Bezdeka wrote:
>>> On Thu, 2026-07-09 at 15:44 +0200, Tobias Schaffner wrote:
>>>> Provide the basic build infrastructure and VDSO definitions
>>>> required to build libevl on RISC-V.
>>>>
>>>> Signed-off-by: Tobias Schaffner <[email protected]>
>>>> ---
>>>>   lib/arch/riscv/include/asm/evl/vdso.h | 14 ++++++++++++++
>>>>   meson.build                           |  4 ++++
>>>>   meson/riscv64-linux-gnu               | 17 +++++++++++++++++
>>>>   3 files changed, 35 insertions(+)
>>>>   create mode 100644 lib/arch/riscv/include/asm/evl/vdso.h
>>>>   create mode 100644 meson/riscv64-linux-gnu
>>>>
>>>> diff --git a/lib/arch/riscv/include/asm/evl/vdso.h b/lib/arch/riscv/ 
>>>> include/asm/evl/vdso.h
>>>> new file mode 100644
>>>> index 0000000..5e331fb
>>>> --- /dev/null
>>>> +++ b/lib/arch/riscv/include/asm/evl/vdso.h
>>>> @@ -0,0 +1,14 @@
>>>> +/*
>>>> + * SPDX-License-Identifier: MIT
>>>> + *
>>>> + * Copyright (C) 2021 Philippe Gerum  <[email protected]>
>>>> + */
>>>
>>> ^^ Copy paste mistake? At least wrong year...
> 
> Click on a legend element to toggle display of that core, ctrl-click 
> inverts display, shift-click enables all.
> 
> Data to construct the above plot have been generated using the RT test 
> utility cyclictest.
> Unexpectedly long latencies may be caused by SMIs
> Total number of samples: 100 million
> Resolution of latency scale: normal
> Duration: 5 hours, 33 minutes, lowest P state: performance
> 
>> Shanmu directly copied this from one of the other vdso header files 
>> without modifications to the copyright header and I did not touch it 
>> further.
>>
>> Would leaf it as is if it is ok for you even if the ifdef was slightly 
>> changed.
>>
>> Best,
>> Tobias
>>
>>>
>>
>>
>