Kprof rounded the pc to 8 byte boundaries in order to save memory.
With x86 instruction rounding this can lead to some pretty misleading
results.
With the old rounding kpdata was ~680kb for a pc64 kernel, with this
change we use ~5.4M (8x) and considering we only allocate when we
first attach this seems reasonable.
Subfonts for non ascii characters are offset by some minimum rune,
typically specified within the parent font file. Because libmemdraw
only deals in subfonts, if we want to have it draw non ascii runes we
need some method of providing that base offset.
This function is only used in one place, so update the function
signature and fix the only caller.
This makes the output of git/diff -s plumbable
when the user is not within the root of the git repo.
This is implemented through adding a flag to git/walk
and having git/walk work out how many '..'s are needed.
Also includes a small piece of documentation regarding
the use of $editor in git/commit.
maintaining ->nsub was fragile, and didn't save very many cycles;
instead just compute it every time; it's only going to hurt with
a ton of giant threads.
This can be usefull for debugging usb enumeration issues from boot,
if one has the chance to pass parameters on the bootloader.
It was initially suggested in a troubleshooting session todo as
a quick modification, but it can be usefull in general.
Added a custom hid descriptor for Xbox360 controllers.
Up to six axes are now supported for analog input.
Added a simple deadband filter for analog axes.
Factotum used to mount itself on /mnt and serving the first-level
directory "factotum" itself. This has the undesired consequence
that it has to respond to all walks crossing the /mnt directory.
Instead, we make factotum interpret the previously ignored
mount-spec (aname). If it is "factotum", it serves the
factotum directory as the root, so it can be directly mounted
onto /mnt/factotum. For backwards compatibility, the old
behaviour is preserved.
The namespace file will now always mount factotum onto /mnt/factotum.
In the case of a old factotum, that ignores the mount-spec,
do a bind moving /mnt/factotum/factotum to /mnt/factotum.
Implement prefix delegation by requesting a
prefix and populate ipnet=val entry (val
passed from -i option).
Before, DHCPv6 was just implemented for stateless
one-shot operation, just exiting once we got out
IA address.
Moodies mediacom-enterprise-enterprise-ISP...
... they actually do enterprise-grade dyanmic dhcpv6
so here we are, implementing renewals...
When a low/full speed device is connected to a USB2.0 hub,
the USB2.0 hub needs to be send special split transaction
protocol messages to communicate with the device below.
This also applies if the fullspeed/lowspeed device is not
directly connected to the USB2.0 hub, but has a fullspeed
hub in between like:
rootport -> usb2.0 hub -> usb1.1 hub -> fs/ls device
In this case, the tranaction translator is actually
the first hub, nut the direct parent of the device.
This was all totally wrong in the hci drivers drivers.
Also, with the new interface, usbd passes number of
ports, and TT properties in the "hub" ctl message,
so the port-count, TT Think-Time and Multi-TT properties
can be properly applied by the xhci driver.
Another bug was that the xhci route string was not
correct if a hub has more than 15 ports. A USB2.0
hub can have more than 15 ports and the standard sais
that in this case a value of 15 should be used in
its bit routestring nibble.
Also, check the hub depth. We should not exceed more
than 5 hubs.
For xhci, it turns out the hub parameters where
actually never properly applied, as the spec sais
only the first "create endpoint" command applies
the hub parameters. The "evaluate context" command
does not work.
Some pikeshedding in devusb:
- fix the freaking locking.
- remove redundant parameters (isroot -> depth < 0, ishub -> nports > 0)
- add TT properties to usb device struct
With these changes, the wired "middle port" issues
on mnt-reform xhci are gone.
A user can create a large demand paged segment
and then do write to a ctl file with a very large buffer
driving the kernel into an out-of-memory condition.
For all practcal purposes, limit the input buffer size
to something reasonable. READSTR is 8000 bytes, which
would be enougth for even the largest ctl messages.
usbid's where globally allocated with a generation counter,
but it would not free usbid's when freed out of order
resulting in overflow.
instead, we use a different scheme, where we allocate the
next higher id until we run out and then allocate the next
lowest id.
properly maintain epmax as well when putep() when out of
order.
make newdev() and newdevep() return the new Ep* with a
reference taken, preventing someone from freeing the ep
under us.
fix the locking, so once we release the epslock, all endpoints
have the ep->dev set properly and remove impossible checks.
remove the annoying "dump" ctl that spams the console.
i got rid of redundant code, and added routines
to get the xform matrix out of an rframe, so it
can be stored and used separately or as part of
a composition of xforms.
also replaced the big example in the man page for
more concise, useful ones.
