The new pci code is moved to port/pci.[hc] and shared by
all ports.
Each port has its own PCI controller implementation,
providing the pcicfgrw*() functions for low level pci
config space access. The locking for pcicfgrw*() is now
done by the caller (only port/pci.c).
Device drivers now need to include "../port/pci.h" in
addition to "io.h".
The new code now checks bridge windows and membars,
while enumerating the bus, giving the pc driver a chance
to re-assign them. This is needed because some UEFI
implementations fail to assign the bars for some devices,
so we need to do it outselfs. (See pcireservemem()).
While working on this, it was discovered that the pci
code assimed the smallest I/O bar size is 16 (pcibarsize()),
which is wrong. I/O bars can be as small as 4 bytes.
Bit 1 in an I/O bar is also reserved and should be masked off,
making the port mask: port = bar & ~3;
There were a number of ideas that were tried out as the tmdate
api evolved. As a result, there were some references in the
manpage to things that are no more.
Fix them.
Ctime is defined as printing a 3-character timezone
name. The timezone name is ambiguous. For example,
EST refers to both Australian and American eastern
time. On top of that, we don't want to make the
tzabbrev table exhaustive. So, we put in this hack:
Before we consult the well known table of timezones,
we check if the local time matches the timezone name.
On top of that, tm2sec
If you want unambiguous timezone parsing, use numeric
timezone offsets (Z, ZZ formats).
do not try to parse the m->unixfrom field, it only contains
the unix mail address.
instead, have parseunix() save a pointer into the unixheader
after the unix mail address for the unixdate, and later use
it to derive the mails timestamp.
Our ctype.h mistakenly ommitted isblank. Add it in.
While we're here, the make the 'isfoo()' functions
are broken: they're offsetting into the array, and
don't work with negative character values.
Sync the function bodies with the macros, and make
them produce correct results.
In addition to being more code, this date parser would
treat local times as local, but anything that wasn't a
local time would get parsed as gmt, due to a quirk of
how tm2sec used to work.
This moves the code to tmparse, and fixes timezone parsing
at the same time.
We almost always want to skip leading whitespace in time
formats, so make tmparse just do it. This fixes upas mbox
parsing, which leaves a leading whitespace at the start of
the date.
Old users of the time APIs would hand-craft
time structs without first zeroing all the
members. When this got into tmnorm(), we
would try to access the new members, and
things would go off the rails.
This makes tm2sec() clear the new fields
before passing them to the new APIs, so
that the hand-crafted structs remain
valid.
The Abind case in namec() needs to cunique() the chan
before attaching the umh mount head pointer onto it.
This is because we cannot give a reference to the mount
head to any of the mh->mount...->to channels, as they
will never go away until the mount head goes away.
This is a cyclic reference.
This could be reproduced with:
@{rfork n; mount -a '#s/boot' /mnt/root; bind /mnt/root /}
Also, fix memory leaks around cunique(), which can
error, leaking the mount head we got from domount().
Move the umh != nil check inside cunique().
The putc macro is specified as returning an int, but our
type conversion rules turned it into a uint. Put in the
appropriate cast to make the type what we want.
aux/na was comparing the return of putc with <0, when it should
have been comparing against EOF, which is not specified as -ve.
aux/ms2 was zero-extending the mask for the address when it
should have been sign extended.
