Hello Dave, On 5/12/20 6:36 PM, Dave Martin wrote: > prctls that are architecture-specific won't work on other > architectures, and arch-specific prctls that manipulate optional > hardware features likewise won't work if that hardware feature is > not present. > > The established pattern seems to be to treat such prctls as if they > are unimplemented, when attempted on the wrong hardware. > > Cover these cases with some generic weasel words in the closet > existing EINVAL clause. > > Signed-off-by: Dave Martin <Dave.Martin@xxxxxxx> Thanks. Patch applied Cheers, Michael > --- > man2/prctl.2 | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/man2/prctl.2 b/man2/prctl.2 > index 2361b44..7f511d2 100644 > --- a/man2/prctl.2 > +++ b/man2/prctl.2 > @@ -1616,7 +1616,8 @@ is an invalid address. > .B EINVAL > The value of > .I option > -is not recognized. > +is not recognized, > +or not supported on this system. > .TP > .B EINVAL > .I option > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/