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Date: Thu, 31 Mar 2022 14:20:51 +0800
From: 王洪亮 <wanghongliang@...ngson.cn>
To: musl@...ts.openwall.com
Subject: Re: Re: add loongarch64 port
在 2022/3/29 下午4:26, Arnd Bergmann 写道:
> On Tue, Mar 29, 2022 at 10:12 AM 王洪亮 <wanghongliang@...ngson.cn> wrote:
>> Hi,
>>
>> we have published 0001-add-loongarch64-port-v2.patch in
>>
>> https://github.com/loongson/musl/tree/loongarch-v1.0.
>>
>> The patch v2 fixed the issues pointed out in v1.
>>
>> have any other issues to modify?
> I see you still refer to the system calls that I asked to be removed from
> the kernel: clone() and the old stat() family (pre-statx). Please use
> only the system calls that are actually supported in mainline kernels,
> otherwise it does not work.
Hi, Arnd
I understand the new system call is clone3() ?
I found musl does not support the clone3() call now, I can implement the
clone3() in LoongArch for future called.
I do not understand what is old stat() family (pre-statx) ? what is new ?
I compare the system call that related the stat in musl and mainline
kernel 5.17,
they are consistent.
#define __NR3264_statfs 43 /*sys_statfs*/
#define __NR3264_fstatfs 44 /*sys_fstatfs*/
#define __NR3264_fstatat 79 /*sys_newfstatat*/
#define __NR3264_fstat 80 /*sys_newfstat*/
#define __NR_statx 291 /*sys_statx*/
#define __NR_statfs __NR3264_statfs
#define __NR_fstatfs __NR3264_fstatfs
#define __NR_newfstatat __NR3264_fstatat
#define __NR_fstat __NR3264_fstat
> For the signal list, the stdint.h header, and the 'struct stat' and
> 'struct kstat'
> definitions, I would expect that there is already an architecture-independent
> definition in musl that you can use, as these should be the same for
> all new architectures.
I understand the meaning is define signal.h, stdint.h, struct stat and
struct kstat in generic,
LoongArch use the generic definition.
can we deal with this issue separately ?
1.LoongArch port based on the existing software framework in musl.
2.implement the generic definitions in musl, LoongArch use the
architecture-independent definition.
Hongliang Wang.
>
> Arnd
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