PR_GET_AUXV(2const) — Linux manual page

PR_GET_AUXV(2const)                                  PR_GET_AUXV(2const)

NAME

       PR_GET_AUXV - get the auxiliary vector

LIBRARY

       Standard C library (libc, -lc)

SYNOPSIS

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

       int prctl(PR_GET_AUXV, void auxv[.size], unsigned long size, 0L, 0L);

DESCRIPTION

       Get the auxiliary vector (auxv) into the buffer pointed to by
       auxv, whose size is given by size.

       If the buffer is not long enough for the full auxiliary vector,
       the copy will be truncated.

RETURN VALUE

       On success, this call returns the full size of the auxiliary
       vector.  On error, -1 is returned, and errno is set to indicate
       the error.

ERRORS

       EFAULT auxv is an invalid address.

STANDARDS

       Linux.

HISTORY

       Linux 6.4.

SEE ALSO

       prctl(2)

COLOPHON

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

Pages that refer to this page: prctl(2)

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