in not just used to access memory but is bassed to bus_space_xxx_n()
methods. For debugging purposes, bus_space can have additional constraints
which will be properly met by BUS_SPACE_ALIGNED_POINTER().
"BUS_SPACE_ALIGNED_POINTER()".
Equal to the param.h "ALIGNED_POINTER()" normally, but obeys additional
requirements of the bus_space_xxx_n() macros. (BUS_SPACE_DEBUG)
PTEs is ignored when in kernel mode. Hack around this just like we do on the
i386, by adding a prepass to copyout() to check for write permission on the
destination pages.
* Don't bother pulling PT_M and PT_H bits from pv_flags; they can't ever be
set there!
* Actually make pmap_clear_reference() do something useful.
* Also set the referenced bit (PT_H) when emulating a write fault.
If we're doing modified bit emulation, we must revoke write permission in
pmap_clear_modify(). This is non-negotiable. I will revoke write permission
in pmap_clear_modify(), or suffer the wrath of a thousand bricks.
same uid or by root.
This code is from FreeBSD. (Whilst it was originally obtained from OpenBSD,
FreeBSD fixed it to work with multicast. To quote the commit message:
- Don't bother checking for conflicting sockets if we're binding to a
multicast address.
- Don't return an error if we're binding to INADDR_ANY, the conflicting
socket is bound to INADDR_ANY, and the conflicting socket has
SO_REUSEPORT set.
)
due to unconditional use of .ne. groff apparently inserts some virtual trap
at the end of each page, and this was causing the .ne commands to output extra
lines. Solution is to only use them in troff.
Also fix a related bug in .It, where it would insert a page break in the middle
of a sentence.
Remove the end of page trap in nroff mode, as this causes .sp to sometimes eat
the space due to the nearby trap.
Lastly, undue a previous change that broke the formatting of the SYNOPSIS
section, until we determine the right way to fix that.
changed in rev 1.11). The former is the file name on the 'begin' line,
thel atter is the whole 'begin' line. This could never have worked;
it should have been better tested.
Bug pointed out by Andrew Gillham <gillhaa@ghost.whirlpool.com>.
simonb