On 6/28/23 20:27, Josh Triplett wrote:
Signed-off-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx> ---
Hi Josh!
I contributed this feature to the kernel, and it shipped in Linux 6.4. Add documentation for it.
Thanks. Patch applied. Cheers, Alex
man2/prctl.2 | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/man2/prctl.2 b/man2/prctl.2 index 09e9072fa..30211a9e2 100644 --- a/man2/prctl.2 +++ b/man2/prctl.2 @@ -2027,6 +2027,17 @@ system call on Tru64). for information on versions and architectures.) Return unaligned access control bits, in the location pointed to by .IR "(unsigned int\~*) arg2" . +.\" prctl PR_GET_AUXV +.TP +.BR PR_GET_AUXV " (since Linux 6.4)" +Get the auxilliary vector (auxv) into the buffer pointed to by +.IR "(void\~*) arg2" , +whose length is given by \fIarg3\fP. +If the buffer is not long enough for the full auxilliary vector, +the copy will be truncated. +Return (as the function result) +the full length of the auxilliary vector. +\fIarg4\fP and \fIarg5\fP must be 0. .SH RETURN VALUE On success, .BR PR_CAP_AMBIENT + PR_CAP_AMBIENT_IS_SET , @@ -2045,6 +2056,7 @@ On success, .BR PR_GET_THP_DISABLE , .BR PR_GET_TIMING , .BR PR_GET_TIMERSLACK , +.BR PR_GET_AUXV , and (if it returns) .B PR_GET_SECCOMP return the nonnegative values described above.
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