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- Move all of the KTR sysctl's under a new debug.ktr mib.

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- Provide TUNABLE_INT() hooks for ktr_cpumask, ktr_mask, and ktr_verbose
  so that they can be set from the loader by their respective sysctl names.
  For example, to turn on KTR_INTR and KTR_PROC in ktr_mask, one could
  stick 'debug.ktr.mask="0x1200"' in /boot/loader.conf.
This commit is contained in:
John Baldwin 2001-01-06 06:51:43 +00:00
parent 33dc87aa84
commit a0a7328bb0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=70705
1 changed files with 26 additions and 17 deletions
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43
sys/kern/kern_ktr.c
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@ -41,6 +41,7 @@
#include <sys/types.h>
#include <sys/cons.h>
#include <sys/time.h>
#include <sys/kernel.h>
#include <sys/ktr.h>
#include <sys/libkern.h>
#include <sys/linker_set.h>
@ -66,35 +67,43 @@
#endif
#ifdef KTR_EXTEND
#define KTR_EXTEND_DEFAULT 1
#else
#define KTR_EXTEND_DEFAULT 0
#endif
#ifdef KTR_VERBOSE
#define KTR_VERBOSE_DEFAULT 1
#else
#define KTR_VERBOSE_DEFAULT 0
#endif
SYSCTL_NODE(_debug, OID_AUTO, ktr, CTLFLAG_RD, 0, "KTR options");
/*
* This variable is used only by gdb to work out what fields are in
* ktr_entry.
*/
int ktr_extend = 1;
SYSCTL_INT(_debug, OID_AUTO, ktr_extend, CTLFLAG_RD, &ktr_extend, 1, "");
#else
int ktr_extend = 0;
SYSCTL_INT(_debug, OID_AUTO, ktr_extend, CTLFLAG_RD, &ktr_extend, 0, "");
#endif /* KTR_EXTEND */
int ktr_extend = KTR_EXTEND_DEFAULT;
SYSCTL_INT(_debug_ktr, OID_AUTO, extend, CTLFLAG_RD, &ktr_extend, 0, "");
int ktr_cpumask = KTR_CPUMASK;
SYSCTL_INT(_debug, OID_AUTO, ktr_cpumask, CTLFLAG_RW, &ktr_cpumask, KTR_CPUMASK, "");
int ktr_cpumask;
TUNABLE_INT_DECL("debug.ktr.cpumask", KTR_CPUMASK, ktr_cpumask);
SYSCTL_INT(_debug_ktr, OID_AUTO, cpumask, CTLFLAG_RW, &ktr_cpumask, 0, "");
int ktr_mask = KTR_MASK;
SYSCTL_INT(_debug, OID_AUTO, ktr_mask, CTLFLAG_RW, &ktr_mask, KTR_MASK, "");
int ktr_mask;
TUNABLE_INT_DECL("debug.ktr.mask", KTR_MASK, ktr_mask);
SYSCTL_INT(_debug_ktr, OID_AUTO, mask, CTLFLAG_RW, &ktr_mask, 0, "");
int ktr_entries = KTR_ENTRIES;
SYSCTL_INT(_debug, OID_AUTO, ktr_entries, CTLFLAG_RD, &ktr_entries, KTR_ENTRIES, "");
SYSCTL_INT(_debug_ktr, OID_AUTO, entries, CTLFLAG_RD, &ktr_entries, 0, "");
volatile int ktr_idx = 0;
struct ktr_entry ktr_buf[KTR_ENTRIES];
#ifdef KTR_VERBOSE
int ktr_verbose = 1;
#else
int ktr_verbose = 0;
#endif
SYSCTL_INT(_debug, OID_AUTO, ktr_verbose, CTLFLAG_RW, &ktr_verbose, 0, "");
int ktr_verbose;
TUNABLE_INT_DECL("debug.ktr.verbose", KTR_VERBOSE_DEFAULT, ktr_verbose);
SYSCTL_INT(_debug_ktr, OID_AUTO, verbose, CTLFLAG_RW, &ktr_verbose, 0, "");
#ifdef KTR
#ifdef KTR_EXTEND