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SubjectRe: set_thread_area.2: csky architecture undocumented
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HI Michael,

On 11/24/20 10:51 AM, Michael Kerrisk (man-pages) wrote:
> Hi Alex,
>
> On 11/23/20 10:31 PM, Alejandro Colomar (man-pages) wrote:
>> Hi Michael,
>>
>> SYNOPSIS
>> #include <linux/unistd.h>
>>
>> #if defined __i386__ || defined __x86_64__
>> # include <asm/ldt.h>
>>
>> int get_thread_area(struct user_desc *u_info);
>> int set_thread_area(struct user_desc *u_info);
>>
>> #elif defined __m68k__
>>
>> int get_thread_area(void);
>> int set_thread_area(unsigned long tp);
>>
>> #elif defined __mips__
>>
>> int set_thread_area(unsigned long addr);
>>
>> #endif
>>
>> Note: There are no glibc wrappers for these system calls; see
>> NOTES.
>>
>>
>> $ grep -rn 'SYSCALL_DEFINE.*et_thread_area'
>> arch/csky/kernel/syscall.c:6:
>> SYSCALL_DEFINE1(set_thread_area, unsigned long, addr)
>> arch/mips/kernel/syscall.c:86:
>> SYSCALL_DEFINE1(set_thread_area, unsigned long, addr)
>> arch/x86/kernel/tls.c:191:
>> SYSCALL_DEFINE1(set_thread_area, struct user_desc __user *, u_info)
>> arch/x86/kernel/tls.c:243:
>> SYSCALL_DEFINE1(get_thread_area, struct user_desc __user *, u_info)
>> arch/x86/um/tls_32.c:277:
>> SYSCALL_DEFINE1(set_thread_area, struct user_desc __user *, user_desc)
>> arch/x86/um/tls_32.c:325:
>> SYSCALL_DEFINE1(get_thread_area, struct user_desc __user *, user_desc)
>>
>>
>> See kernel commit 4859bfca11c7d63d55175bcd85a75d6cee4b7184
>>
>>
>> I'd change
>> - #elif defined __mips__
>> + #elif defined(__mips__ || __csky__)
>>
>> and then change the rest of the text to add csky when appropriate.
>> Am I correct?
>
> AFAICT, you are correct. I think the reason that csky is missing is
> that the architecture was added after this manual pages was added.

Yep, I guessed it was that :)

Thanks,

Alex

>
> Thanks,
>
> Michael
>
>

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