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From: 王洪亮 <wanghongliang@loongson.cn>
To: musl@lists.openwall.com
Subject: Re: [musl] Re: add loongarch64 port
Date: Wed, 13 Apr 2022 09:16:30 +0800	[thread overview]
Message-ID: <2ef8a9f1-f677-160b-5442-2057d505f906@loongson.cn> (raw)
In-Reply-To: <e5df028f-20b8-9465-43e5-1c6a46bb2f17@loongson.cn>


在 2022/4/12 上午9:11, 王洪亮 写道:
>
> 在 2022/4/11 下午9:01, Arnd Bergmann 写道:
>> On Mon, Apr 11, 2022 at 2:11 PM Rich Felker <dalias@libc.org> wrote:
>>> On Mon, Apr 11, 2022 at 10:03:13AM +0200, Arnd Bergmann wrote:
>>>> On Sun, Apr 10, 2022 at 5:27 PM Rich Felker <dalias@libc.org> wrote:
>>>>> On Sun, Apr 10, 2022 at 12:30:59PM +0200, Arnd Bergmann wrote:
>>>>>> On Sat, Apr 9, 2022 at 3:31 PM Rich Felker <dalias@libc.org> wrote:
>>>>>>> Actually, if there aren't yet archs lacking SYS_clone, this API
>>>>>>> regression may be a good argument not to drop SYS_clone on new 
>>>>>>> archs
>>>>>>> yet until there's a way for new archs to get the same behavior
>>>>>>> (unspecified stack size).
>>>>>> That is a good point, but it also appears that the behavior of
>>>>>> clone3() is unintentional
>>>>>> here, I'm fairly sure it was meant to be a drop-in replacement 
>>>>>> for clone() with
>>>>>> additional features.
>>>>>>
>>>>>> Not sure what the best fix for this is, as the check for size==0 
>>>>>> was clearly
>>>>>> intentional, but seems to prevent this from working. A special 
>>>>>> flag to ignore
>>>>>> the size, or a magic size value like -1ull might work, but 
>>>>>> neither of them
>>>>>> is a great interface.
>>>>> Are there archs already affected, or will this one be the first?
>>>> We have not added any other architectures since clone3 got added,
>>>> so this is the first one.
>>> In that case I really think __NR_clone should just be kept for now. It
>>> doesn't really cost anything on the kernel side and it avoids a
>>> dependency on working out how __NR_clone3 is going to fix the missing
>>> functionality.
>> Yes, fair enough.
>>
>>          Arnd
>
>
> Do I need to implement __clone3 for future called in LoongArch port ?
>
>
> Hongliang Wang.


Hi,

Have any other issues to modify in LoongArch port ?


Hongliang wang


  reply	other threads:[~2022-04-13  1:16 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-31  6:20 王洪亮
2022-03-31  8:14 ` Arnd Bergmann
2022-04-01  7:40   ` 王洪亮
2022-04-01  7:48     ` Arnd Bergmann
2022-04-02  6:19       ` 王洪亮
2022-04-02  7:21         ` Rich Felker
2022-04-02  9:53           ` 王洪亮
2022-04-27  1:58   ` 王洪亮
2022-04-27  2:13     ` Rich Felker
2022-03-31 18:47 ` Rich Felker
2022-04-02  7:59   ` 王洪亮
2022-04-06  2:08     ` 王洪亮
2022-04-06 16:00       ` Markus Wichmann
2022-04-08  2:21         ` 王洪亮
2022-04-08  6:46           ` Arnd Bergmann
2022-04-09  3:54             ` 王洪亮
2022-04-09 11:06               ` Arnd Bergmann
2022-04-09 13:19                 ` Rich Felker
2022-04-09 13:30                   ` Rich Felker
2022-04-10 10:30                     ` Arnd Bergmann
2022-04-10 15:26                       ` Rich Felker
2022-04-11  8:03                         ` Arnd Bergmann
2022-04-11 12:11                           ` Rich Felker
2022-04-11 13:01                             ` Arnd Bergmann
2022-04-12  1:11                               ` 王洪亮
2022-04-13  1:16                                 ` 王洪亮 [this message]
2022-04-13  7:26                       ` Christian Brauner
2022-04-13  8:26                         ` Arnd Bergmann
2022-04-13  9:04                           ` Christian Brauner
2022-04-13 13:25                             ` Arnd Bergmann
2022-04-13 14:09                               ` Rich Felker
2022-04-14  9:36                                 ` Christian Brauner
2022-04-20  9:09                                   ` 王洪亮
2022-04-20 13:33                                     ` Christian Brauner
2022-04-20 13:54                                       ` Rich Felker
2022-04-21  6:54                                         ` 王洪亮
2022-04-14  9:36                               ` Christian Brauner
2022-04-13  7:19                   ` Christian Brauner
2022-04-13 14:06                     ` Rich Felker
2022-04-11  3:40                 ` 王洪亮
  -- strict thread matches above, loose matches on Subject: below --
2022-03-22  3:52 [musl] " 王洪亮
2022-03-29  8:12 ` [musl] " 王洪亮
2022-03-29  8:26   ` Arnd Bergmann

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