Re: [PATCH v2 06/10] set_tid_address.2: Use syscall(SYS_...); for system calls without a wrapper

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Hi Alex,

On 5/25/21 6:19 AM, Alejandro Colomar wrote:
> Signed-off-by: Alejandro Colomar <alx.manpages@xxxxxxxxx>

Applied.

Thanks,

Michael


> ---
>  man2/set_tid_address.2 | 13 +++++++------
>  1 file changed, 7 insertions(+), 6 deletions(-)
> 
> diff --git a/man2/set_tid_address.2 b/man2/set_tid_address.2
> index 258c9b9ef..65b4931eb 100644
> --- a/man2/set_tid_address.2
> +++ b/man2/set_tid_address.2
> @@ -27,13 +27,17 @@
>  set_tid_address \- set pointer to thread ID
>  .SH SYNOPSIS
>  .nf
> -.B #include <linux/unistd.h>
> +.BR "#include <sys/syscall.h>" "      /* Definition of " SYS_* " constants */"
> +.B #include <unistd.h>
>  .PP
> -.BI "pid_t set_tid_address(int *" tidptr );
> +.BI "pid_t syscall(SYS_set_tid_address, int *" tidptr );
>  .fi
>  .PP
>  .IR Note :
> -There is no glibc wrapper for this system call; see NOTES.
> +glibc provides no wrapper for
> +.BR set_tid_address (),
> +necessitating the use of
> +.BR syscall (2).
>  .SH DESCRIPTION
>  For each thread, the kernel maintains two attributes (addresses) called
>  .I set_child_tid
> @@ -99,9 +103,6 @@ This call is present since Linux 2.5.48.
>  Details as given here are valid since Linux 2.5.49.
>  .SH CONFORMING TO
>  This system call is Linux-specific.
> -.SH NOTES
> -Glibc does not provide a wrapper for this system call; call it using
> -.BR syscall (2).
>  .SH SEE ALSO
>  .BR clone (2),
>  .BR futex (2),
> 


-- 
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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