Module Name: src
Committed By: mrg
Date: Thu Oct 29 00:27:08 UTC 2015
Modified Files:
src/share/man/man4: options.4
src/sys/kern: init_main.c kern_history.c kern_xxx.c
src/sys/sys: kernhist.h systm.h
Log Message:
introduce a new way of handling SYSCALL_DEBUG messages -- send them to
a kernel history, settable via the SCDEBUG_KERNHIST flag.
this requires a fairly significantly different set of messages than the
normal debug as histories are restricted:
- each message can take one literal format string and upto 4
arguments
- the arguments can not be strings if you want vmstat -u to
work (this could be fixed, and i might, as it would be nice
if we could print syscall names as well as numbers.)
introduce SCDEBUG_DEFAULT that is settable in the kernel config.
fix a problem in kernhist_dump_histories() where it would crash when a
history with no allocated entries was found.
extend kernhist_dumpmask() to handle the usbhist and scdebughist.
To generate a diff of this commit:
cvs rdiff -u -r1.449 -r1.450 src/share/man/man4/options.4
cvs rdiff -u -r1.471 -r1.472 src/sys/kern/init_main.c
cvs rdiff -u -r1.1 -r1.2 src/sys/kern/kern_history.c
cvs rdiff -u -r1.72 -r1.73 src/sys/kern/kern_xxx.c
cvs rdiff -u -r1.9 -r1.10 src/sys/sys/kernhist.h
cvs rdiff -u -r1.268 -r1.269 src/sys/sys/systm.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
