diff options
Diffstat (limited to 'cpukit/score')
| -rw-r--r-- | cpukit/score/src/kern_tc.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/cpukit/score/src/kern_tc.c b/cpukit/score/src/kern_tc.c index 2e9de6e463..0b8721c636 100644 --- a/cpukit/score/src/kern_tc.c +++ b/cpukit/score/src/kern_tc.c @@ -252,11 +252,17 @@ volatile int32_t time_uptime = 1; #endif /* __rtems__ */ #ifndef __rtems__ +/* + * The system time is always computed by summing the estimated boot time and the + * system uptime. The timehands track boot time, but it changes when the system + * time is set by the user, stepped by ntpd or adjusted when resuming. It + * is set to new_time - uptime. + */ static int sysctl_kern_boottime(SYSCTL_HANDLER_ARGS); SYSCTL_PROC(_kern, KERN_BOOTTIME, boottime, CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, 0, sysctl_kern_boottime, "S,timeval", - "System boottime"); + "Estimated system boottime"); SYSCTL_NODE(_kern, OID_AUTO, timecounter, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, ""); |