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set_tid_address.2: Use syscall(SYS_...); for system calls without a wrapper 

Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Alejandro Colomar 2021-05-24 20:19:43 +02:00 committed by Michael Kerrisk
parent ba4d34a16d
commit 18e21e1e4c
1 changed files with 7 additions and 6 deletions
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13
man2/set_tid_address.2
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@ -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),