Is there any update on 64bit GNU Mach? Can it already be tested by nerd-god users who refuse to write patches?
(working on the qoth) Best wishes, Arne Am Montag, 2. April 2012, 15:44:20 schrieb Richard Braun: > On Mon, Apr 02, 2012 at 03:21:06PM +0200, Samuel Thibault wrote: > > Because there is code in GNU Mach that uses mach_port_t as a pointer, > > see e.g. kdportdeath(), which just casts mach_port_t into ipc_port_t, or > > ipc_kmsg_copyin_header which casts back the just-resolved object into > > mach_port_t. Such code might have to simply use the ipc_port_t type > > instead, I don't know. What I know for sure, however, is that xnu does > > typedef ipc_port_t mach_port_t, which makes me tend to think that in the > > kernel, mach_port_t is supposed to be a pointer, while mach_port_name_t > > is for the port names. > > Keeping names-to-pointer casts wouldn't be the cleanest way, but it > may save some effort. Using ipc_port_t seems better to me, but as it's > completely internal to the kernel, it doesn't matter much. To answer > your inital question, yes, it doesn't hurt much and makes sense to use > a 32-bit type for port names, whatever the word size. -- 1w6 sie zu achten, sie alle zu finden, in Spiele zu leiten und sacht zu verbinden. → http://1w6.org
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