Ian Dowse 4784a46912 Replace the code for reading and writing the kernel message buffer ... with a new implementation that has a mostly reentrant "addchar" routine, supports multiple message buffers in the kernel, and hides the implementation details from callers. The new code uses a kind of sequence number to represend the current read and write positions in the buffer. This approach (suggested mainly by bde) permits the read and write pointers to be maintained separately, which reduces the number of atomic operations that are required. The "mostly reentrant" above refers to the way that while it is now always safe to have any number of concurrent writers, readers could see the message buffer after a writer has advanced the pointers but before it has witten the new character. Discussed on: freebsd-arch		2003-06-22 02:18:31 +00:00
..
defines
files	Replace the code for reading and writing the kernel message buffer	2003-06-22 02:18:31 +00:00
files.alpha	Separate the encoding/decoding functions for struct disklabel into a	2003-04-17 07:39:03 +00:00
files.amd64	Make this compile with WITNESS enabled. It wants the syscall names.	2003-05-31 06:49:53 +00:00
files.i386	Eliminate potential overflows by allocating softc dynamically,	2003-05-31 17:06:20 +00:00
files.ia64	Revamp of the syscall path, exception and context handling. The	2003-05-16 21:26:42 +00:00
files.pc98	Eliminate potential overflows by allocating softc dynamically,	2003-05-31 17:06:20 +00:00
files.powerpc	Standardize handling of locore.[sS] etc. files.	2003-02-28 21:59:14 +00:00
files.sparc64	Hook openpromio up to the build.	2003-06-19 18:06:58 +00:00
kern.mk	Update the kernel compile flags inside the .if ${MACHINE_ARCH} == "amd64"	2003-05-30 01:06:58 +00:00
kern.post.mk	Some glue to allow lint(1) to work on the kernel. This is not	2003-06-14 17:28:13 +00:00
kern.pre.mk	Some glue to allow lint(1) to work on the kernel. This is not	2003-06-14 17:28:13 +00:00
kmod_syms.awk	Our awk does not implement the ARGIND variable, so we were attempting	2002-08-06 19:31:04 +00:00
kmod.mk	exists() is too aggressive when searching for files without a full path.	2003-03-03 22:51:22 +00:00
ldscript.alpha	Use the new freebsd output format from Binutils 2.13.1.	2002-10-11 19:38:04 +00:00
ldscript.amd64	Sync up with the files in the hammer branch in the p4 tree to get basic	2003-05-01 02:59:24 +00:00
ldscript.i386	Add two symbols start_ctors and stop_ctors to allow us to find the	2003-01-06 07:37:15 +00:00
ldscript.ia64	Sync the linker script with the one used by default for userland. Since	2003-05-16 06:03:45 +00:00
ldscript.powerpc	Page align the data segment.	2001-10-08 10:43:34 +00:00
ldscript.sparc64	Use the same SEARCH_DIR as other platforms.	2003-06-07 18:23:50 +00:00
majors	Deallocate major 177; the openfirm device does not use a fixed major	2003-06-11 18:34:50 +00:00
majors.awk	Add necessary awk magic to create a table of major numbers allocated	2003-02-27 08:52:11 +00:00
Makefile.alpha	Bump the config version to force people to upgrade their config(8)	2003-04-15 21:29:11 +00:00
Makefile.amd64	Add ddb machdep bits.	2003-05-30 01:03:43 +00:00
Makefile.i386	Bump the config version to force people to upgrade their config(8)	2003-04-15 21:29:11 +00:00
Makefile.ia64	Revamp of the syscall path, exception and context handling. The	2003-05-16 21:26:42 +00:00
Makefile.pc98	Bump the config version to force people to upgrade their config(8)	2003-04-15 21:29:11 +00:00
Makefile.powerpc	Bump the config version to force people to upgrade their config(8)	2003-04-15 21:29:11 +00:00
Makefile.sparc64	Bump the config version to force people to upgrade their config(8)	2003-04-15 21:29:11 +00:00
makeLINT.mk	Implemented "nooption" and "nomakeoption" config(8) tokens.	2003-02-26 23:36:59 +00:00
makeLINT.sed	Implemented "nooption" and "nomakeoption" config(8) tokens.	2003-02-26 23:36:59 +00:00
newvers.sh	Attempt to fix Alpha build by renaming ident[] to kern_ident[].	2003-06-09 18:19:33 +00:00
NOTES	Add "GEOM_FOX", a class which detects and selects between multiple	2003-06-18 09:29:28 +00:00
options	Moved the syscons options, kbd options and DEV_SPLASH to the MI options	2003-06-18 15:25:01 +00:00
options.alpha	Moved the syscons options, kbd options and DEV_SPLASH to the MI options	2003-06-18 15:25:01 +00:00
options.amd64	Moved the syscons options, kbd options and DEV_SPLASH to the MI options	2003-06-18 15:25:01 +00:00
options.i386	Moved the syscons options, kbd options and DEV_SPLASH to the MI options	2003-06-18 15:25:01 +00:00
options.ia64	Moved the syscons options, kbd options and DEV_SPLASH to the MI options	2003-06-18 15:25:01 +00:00
options.pc98	Moved the syscons options, kbd options and DEV_SPLASH to the MI options	2003-06-18 15:25:01 +00:00
options.powerpc	Options that go into homonymous headers shouldn't specify the header name.	2003-04-12 09:40:37 +00:00
options.sparc64	Remove the PSYCHO_STRAY option - it was never really useful. Adjust a	2003-06-12 15:00:34 +00:00
systags.sh