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PR_GET_TAGGED_ADDR_CTRL(2const) — Linux manual page

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | FILES | STANDARDS | HISTORY | SEE ALSO | COLOPHON 

PR_GET_TAGGED_ADDR_CTRL(2const)          PR_GET_TAGGED_ADDR_CTRL(2const)

NAME         top

       PR_GET_TAGGED_ADDR_CTRL - get the tagged address mode for the
       calling thread

LIBRARY         top

       Standard C library (libc, -lc)

SYNOPSIS         top

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

       int prctl(PR_GET_TAGGED_ADDR_CTRL, 0L, 0L, 0L, 0L);

DESCRIPTION         top

       Returns the current tagged address mode for the calling thread.

       The call returns a nonnegative value describing the current
       tagged address mode, encoded in the same way as the mode argument
       of PR_SET_TAGGED_ADDR_CTRL(2const).

RETURN VALUE         top

       On success, this call returns the nonnegative value described
       above.  On error, -1 is returned, and errno is set to indicate
       the error.

ERRORS         top

       This feature is disabled or unsupported by the kernel, or
       disabled via /proc/sys/abi/tagged_addr_disabled.

FILES         top

       /proc/sys/abi/tagged_addr_disabled

STANDARDS         top

       Linux.  arm64 only.

HISTORY         top

       Linux 5.4 (arm64).

SEE ALSO         top

       prctl(2), PR_SET_TAGGED_ADDR_CTRL(2const)

       For more information, see the kernel source file Documentation/
       arm64/tagged-address-abi.rst.

COLOPHON         top

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Linux man-pages 6.9.1          2024-06-01PR_GET_TAGGED_ADDR_CTRL(2const)

Pages that refer to this page: prctl(2)

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