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Re: [PATCH 09/22] Provide cap_rights_t via <sys/types.h>
- From: Sebastian Huber <sebastian dot huber at embedded-brains dot de>
- To: newlib at sourceware dot org
- Date: Wed, 20 Apr 2016 11:48:10 +0200
- Subject: Re: [PATCH 09/22] Provide cap_rights_t via <sys/types.h>
- Authentication-results: sourceware.org; auth=none
- References: <1460986182-11952-1-git-send-email-sebastian dot huber at embedded-brains dot de> <1460986182-11952-10-git-send-email-sebastian dot huber at embedded-brains dot de> <20160420084929 dot GA24590 at calimero dot vinschen dot de>
On 20/04/16 10:49, Corinna Vinschen wrote:
Hi Sebastian,
On Apr 18 15:29, Sebastian Huber wrote:
Provide cap_rights_t via <sys/types.h> if __BSD_VISIBLE for BSD
compatibility.
Do we really want to clutter the namespace with all these very
FreeBSD-centric types? I'm mostly concerned about this struct
cap_rights, but also many of the other types are rather... uncommon.
I checked their existence on OpenBSD, NetBSD, and Linux, and none of
them define those:
addr_t
accmode_t
cap_rights/cap_rights_t
c_caddr_t
cpulevel_t
cpusetid_t
cpuwhich_t
uintfptr_t
vm_offset_t
vm_size_t
vm_ooffset_t
vm_paddr_t
vm_pindex_t
addr_t, vm_offset_t, and vm_size_t are defined in Cygwin, but still,
do we really want them available generically? __BSD_VISIBLE is set
by default...
For RTEMS we definitely want these types, since we want to use code from
FreeBSD. So, the question is, do all Newlib users want to see these
types? Your survey suggests a no.
What about the following:
As the last step of <sys/types.h> add an
#include <machine/_user_types.h>
so that a particular Newlib target is able to provide additional user types.
Move "winsup/cygwin/include/cygwin/types.h" to
"winsup/cygwin/include/machine/_user_types.h". Plague only the RTEMS
users with these FreeBSD types.
Do we want to keep the special cases for GO32 and __MSDOS__ on i386 or
may I remove them and potentially break these targets?
--
Sebastian Huber, embedded brains GmbH
Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone : +49 89 189 47 41-16
Fax : +49 89 189 47 41-09
E-Mail : sebastian.huber@embedded-brains.de
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