allowing for the following:
file foo.c foobar | bar
defflag BAR
device foobar
...to be expressed in the following (more natural) way:
define foo
file foo.c foo
defflag BAR: foo
device foobar: foo
allows for the following:
define foo
define bar { }: foo
device foobar: bar
An instance of "foobar" will select "bar", which will in turn select
"foo" due to "bar"'s dependency on "foo".
Circular dependencies are not allowed, and a dependency may also not
be an interface attribute.
now carries the name of the attachment (e.g. "tlp_pci" or "audio"),
and cfattach structures are registered at boot time on a per-driver
basis. The cfdriver and cfattach pointers are cached in the device
structure when attached.
a vector of indices into the cfdata table to specify potential parents,
record the interface attributes that devices have and add a new "parent
spec" structure which lists the iattr, as well as optionally listing
specific parent device instances.
See:
http://mail-index.netbsd.org/tech-kern/2002/09/25/0014.html
...for a detailed description.
While here, const poison some things, as suggested by Matt Thomas.
This merge changes the device switch tables from static array to
dynamically generated by config(8).
- All device switches is defined as a constant structure in device drivers.
- The new grammer ``device-major'' is introduced to ``files''.
device-major <prefix> char <num> [block <num>] [<rules>]
- All device major numbers must be listed up in port dependent majors.<arch>
by using this grammer.
- Added the new naming convention.
The name of the device switch must be <prefix>_[bc]devsw for auto-generation
of device switch tables.
- The backward compatibility of loading block/character device
switch by LKM framework is broken. This is necessary to convert
from block/character device major to device name in runtime and vice versa.
- The restriction to assign device major by LKM is completely removed.
We don't need to reserve LKM entries for dynamic loading of device switch.
- In compile time, device major numbers list is packed into the kernel and
the LKM framework will refer it to assign device major number dynamically.
filenames had to be unquoted and also had to contain a / or .,
while others had to have no / and no . or be quoted, whereas
arbitrary machine symbols could always be optionally quoted,
which was kind of backwards.
Now, all filesnames use the same rules: quoted, or with a / or .
Arbitrary words can no longer be quoted unless the grammar specifically
allows it, which it now does for filenames, locator values, locator
defaults, compile-with, ident, makeoptions, and options.
Also, locator name symbols can be quoted, so mac68k's "no drq" locator
still works. ("no drq" doesn't appear in any machine description so I
presume it's just for the dmesg. )
- Add `no' keyword, which can be used in the following ways:
no file-system SOMEFS
no makeoptions FOO
no options OPT1[,OPT2[,...]]
no pseudo-device somepseudo
This turns off a previous file-system/makeoptions/options/pseudo-device
entry for the same item.
Grammar support for 'no device DEV at ATTACH' added, but not
implemented yet.
Code changes:
- Convert many simple lists to TAILQs
- Convert prefix to SLIST
- Remove argument names from prototypes.
- Don't bother with custom alloc code for hashtables; just use emalloc()
like everything else.
- Implement ht_remove(), to remove an entry from a hash table.
Add removed entries to a freelist for later reuse.
- Don't selectbase() devices and pseudo-devices at definition time; instead
do it at one pass after the config file has been parsed in fixdevis().
- Rename nvhead to nvfreelist; a more apt name...
- Minor code cleanups.
swap*.c files if they haven't changed from the last time config was
run, so that less stuff will need to be rebuilt (ie, assym.h, upon
which many other things depend) each time config is rerun.
round has been tested on Solaris/x86 and Linux hosts.
* Add host tools cap_mkdb, ctags, m4, uudecode.
* Protect __RCSID() and __COPYRIGHT() better.
* Reduce the number of places that need to include "config.h", to keep
sources closer to their "vanilla" versions.
* Add more compat #defines and autoconf-checked functions.
preprocessors complain bitterly when they are encountered.
For now, terminate all lines with \n (and make each line its own
string literal). The author of this code can figure out how to
do the sed trick another way.
the term used in config(9), autoconf(9) and in Torek's paper.
Also remove (comment out) reference to the 4.4BSD config docs,
since they are not installed in usr/share/doc/smm/02.config and
possibly aren't relevant any longer. From comments made on
tech-kern by jhawk and tls.
- Don't bother emitting "#define NFOO 0" for defflag foo (whether or
not "options FOO" was given); it's really useful as is.
Until I recently started converting stuff from defopt to defflag,
nothing used defflag, and because defopt doesn't provide NFOO for FOO,
the NFOO behaviour shouldn't be missed. The NFOO stuff also added
a lot of #define namespace pollution that we'd rather avoid.
- Remove a couple of unused vars
restore the previous behaviour of packing locators.
Results in a 2.5KB increase in size for the current i386 GENERIC
kernel. My custom kernel resulted in a 12-byte increase.
a `machine' line. For each of these subarches, its
arch/${SUBARCH}/conf/files.${SUBARCH} is included, and
a symlink ${SUBARCH} -> arch/${SUBARCH}/include is made.
This will for a "richer structure" and easier code
sharing under sys/arch.
thorpej