On 11/2/20 2:12 PM, Alejandro Colomar wrote: > > > On 2020-11-02 14:09, Michael Kerrisk (man-pages) wrote: >> Hi Alex, >> >> On Mon, 2 Nov 2020 at 13:20, Alejandro Colomar <colomar.6.4.3@xxxxxxxxx> wrote: >>> >>> On 2020-11-02 08:37, Michael Kerrisk (man-pages) wrote: >>> > Hi Alex, >>> > >>> > On 11/1/20 2:59 PM, Alejandro Colomar wrote: >>> >> The Linux kernel uses a long as the return type for this syscall. >>> >> As glibc provides no wrapper, use the same types the kernel uses. >>> > >>> > I think we need this patch for all of the io* pages, right? >>> >>> Hi Michael, >>> >>> For some reason, no. AFAICS, only io_setup() really uses 'long'. Ahhh -- now I get what you mean. >> But is not SYSCALL_DEFINEX() producing a prototype with return value >> 'long' in all the cases? (I have not checked, I just presume so.) > > Hi Michael, > > Well, yes. > SYSCALL_DEFINEx() produces a return type of long > for _all_ syscalls, AFAICS. > (as I said before, that macro is a bit obscure, but I can read that). > > Would you like to change all syscall man pages (without a wrapper) > to use long as the return type? I guess not. Thanks, Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/
