Only things defined with this keyword will be allowed on "file-system"
lines in the kernel config files.
By default, -D... directives for file systems are not generated, since
they are not needed for most file systems now that vfs_conf.c is gone.
However, some file systems must have dependencies generated on them
(e.g. NFS, UNION). So, provide a way to specify an option file for
these file systems.
a change to the config grammar, to specify a device's class (i.e. DV_xxx)
like:
device sd class disk: ...
Also emit an ioconf.h, which contains extern declarations of the
cfdriver structures.
While I'm here, add support for specifying multiple options per defopt
line, as well as specifying the file name in which the options will
appear.
defopt foo bar baz
generates "opt_foo.h", "opt_bar.h", and "opt_baz.h"
defopt opt_mumble.h foo bar baz
generates "opt_mumble.h" which contains all three options.
Also, clean up and fix some bugs in the code that generates header files.
Syntax is like the `file' keyword; e.g.:
object arch/i386/i386/mumble.o [mumble] [needs-flag]
Largely from Michael Richardson in PR 3833, with some changes by me.
be included in object dependencies. config(8) is told to generate
a header for a particular option with the new "defopt" keyword, used
in the files.* system description files. Options that are placed in
header files are not given -D... cpp flags.
This approach allows options to be turned into headers incrementally,
rather than all at once, and allows for non-header options, as well.
and the root device:
- New "file-system" keyword is used to configure file systems into
the kernel.
- New way of specifying root device, which allows root file system
type to always be specified. Examples:
config gennetbsd swap generic
config sdnetbsd root on sd0a swap on sd0b
config nfsnetbsd root on nfs
are replaced by:
config gennetbsd root on ? type ?
config sdnetbsd root on sd0a type ffs swap on sd0b
config nfsnetbsd root on ? type nfs
config lenetbsd root on le0 type nfs
Note that specific network interfaces may now be specified as
the root device.
- swapgeneric.c is no longer used; generate a swap*.c file for each
"config" line in the kernel configuration file.
requires that some ordering requirements are checked by the
back-end C code instead of the parser (dirspecs, maxpart).
* Be more careful to require newline tokens in the grammer where
they are expected, and deal with blank lines, etc. This allows
elimination of a trailing context on newline in the scanner.
* Let the parser set values for "needs-count" and "needs-flag"
instead of making those special cases in the scanner.
* Get rid of '= ' preceeding actions (obsolete yacc syntax)
* Make the scanner not insert an extra newline after includes.
(It was just an accidental side-effect of the ENDFILE stuff.)
on tech-kern. (See man page.) Implementation by Greg Hudson.
Also, remove special case for i386 in vector handling, although this code isn't
actually used any more.
- split softc size and match/attach out from cfdriver into
a new struct cfattach.
- new "attach" directive for files.*. May specify the name of
the cfattach structure, so that devices may be easily attached
to parents with different autoconfiguration semantics.
thorpej