PR_GET_TID_ADDRESS(2) — Справочная страница Linux

PR_GET_TID_ADDRESS(2const)                    PR_GET_TID_ADDRESS(2const)

НАЗВАНИЕ

       PR_GET_TID_ADDRESS - get the clear_child_tid address

БИБЛИОТЕКА

       Standard C library (libc, -lc)

СИНТАКСИС

       #include <linux/prctl.h>  /* Definition of PR_* constants */
       #include <sys/prctl.h>

       int prctl(PR_GET_TID_ADDRESS, int **addrp);

ОПИСАНИЕ

       Return the clear_child_tid address set by set_tid_address(2) and
       the clone(2) CLONE_CHILD_CLEARTID flag, in the location pointed
       to by addrp.

       This feature is available only if the kernel is built with the
       CONFIG_CHECKPOINT_RESTORE option enabled.

ЗНАЧЕНИЕ ВОЗВРАТА

       On success, 0 is returned.  On error, -1 is returned, and errno
       is set to indicate the error.

ОШИБКИ

       EFAULT addrp is an invalid address.

СТАНДАРТЫ

       Linux.

ИСТОРИЯ

       Linux 3.5.

ЗАМЕЧАНИЯ

       Note that since the prctl() system call does not have a compat
       implementation for the AMD64 x32 and MIPS n32 ABIs, and the
       kernel writes out a pointer using the kernel's pointer size, this
       operation expects a user-space buffer of 8 (not 4) bytes on these
       ABIs.

СМОТРИТЕ ТАКЖЕ

       prctl(2)

КОЛОФОН

       This page is part of the man-pages (Linux kernel and C library
       user-space interface documentation) project.  Information about
       the project can be found at 
       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
       for this manual page, see
       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
       This page was obtained from the tarball man-pages-6.9.1.tar.gz
       fetched from
       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
       2024-06-26.  If you discover any rendering problems in this HTML
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       part of the original manual page), send a mail to
       man-pages@man7.org

Linux man-pages 6.9.1          2024-06-02     PR_GET_TID_ADDRESS(2const)

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