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    SubjectRe: set_thread_area.2: csky architecture undocumented
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    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.

    Thanks,

    Michael


    --
    Michael Kerrisk
    Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
    Linux/UNIX System Programming Training: http://man7.org/training/

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