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8198a1a472
freebsd-skq/sys/conf
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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
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
kmod.mk
ldscript.alpha
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
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
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
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
makeLINT.sed
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.sparc64 Remove the PSYCHO_STRAY option - it was never really useful. Adjust a 2003-06-12 15:00:34 +00:00
systags.sh