From 570e58e4fe3e9637ac403afe50206aad88807e97 Mon Sep 17 00:00:00 2001 From: Konstantin Belousov Date: Mon, 18 Jan 2021 09:25:36 +0200 Subject: Add ddb 'show timecounter' command. MFC after: 1 week Sponsored by: The FreeBSD Foundation --- cpukit/score/src/kern_tc.c | 32 +++++++++++++++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-) (limited to 'cpukit/score/src/kern_tc.c') diff --git a/cpukit/score/src/kern_tc.c b/cpukit/score/src/kern_tc.c index 799d27c0ac..51ef27744e 100644 --- a/cpukit/score/src/kern_tc.c +++ b/cpukit/score/src/kern_tc.c @@ -2464,7 +2464,6 @@ tc_fill_vdso_timehands(struct vdso_timehands *vdso_th) enabled = 0; return (enabled); } -#endif /* __rtems__ */ #ifdef COMPAT_FREEBSD32 uint32_t @@ -2491,3 +2490,34 @@ tc_fill_vdso_timehands32(struct vdso_timehands32 *vdso_th32) return (enabled); } #endif + +#include "opt_ddb.h" +#ifdef DDB +#include + +DB_SHOW_COMMAND(timecounter, db_show_timecounter) +{ + struct timehands *th; + struct timecounter *tc; + u_int val1, val2; + + th = timehands; + tc = th->th_counter; + val1 = tc->tc_get_timecount(tc); + __compiler_membar(); + val2 = tc->tc_get_timecount(tc); + + db_printf("timecounter %p %s\n", tc, tc->tc_name); + db_printf(" mask %#x freq %ju qual %d flags %#x priv %p\n", + tc->tc_counter_mask, (uintmax_t)tc->tc_frequency, tc->tc_quality, + tc->tc_flags, tc->tc_priv); + db_printf(" val %#x %#x\n", val1, val2); + db_printf("timehands adj %#jx scale %#jx ldelta %d off_cnt %d gen %d\n", + (uintmax_t)th->th_adjustment, (uintmax_t)th->th_scale, + th->th_large_delta, th->th_offset_count, th->th_generation); + db_printf(" offset %jd %jd boottime %jd %jd\n", + (intmax_t)th->th_offset.sec, (uintmax_t)th->th_offset.frac, + (intmax_t)th->th_boottime.sec, (uintmax_t)th->th_boottime.frac); +} +#endif +#endif /* __rtems__ */ -- cgit v1.2.3