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procfs: Fix uptime being close to maximum 32-bit value in certain config

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This commit is contained in:
Juha Niskanen 2017-11-10 07:51:17 -06:00 committed by Gregory Nutt
parent 25c1f4407e
commit cc7af2b0d0
3 changed files with 14 additions and 14 deletions
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2
fs/procfs/fs_procfsuptime.c
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@ -240,7 +240,7 @@ static ssize_t uptime_read(FAR struct file *filep, FAR char *buffer,
{
/* System time */
ticktime = clock_systimer();
ticktime = clock_systimer() - INITIAL_SYSTEM_TIMER_TICKS;
#if defined(CONFIG_HAVE_DOUBLE) && defined(CONFIG_LIBC_FLOATINGPOINT)
/* Convert the system up time to a seconds + hundredths of seconds string */

13
include/nuttx/clock.h
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@ -178,6 +178,19 @@
#define TICK2HSEC(tick) (((tick)+(TICK_PER_HSEC/2))/TICK_PER_HSEC) /* Rounds */
#define TICK2SEC(tick) (((tick)+(TICK_PER_SEC/2))/TICK_PER_SEC) /* Rounds */
#if defined(CONFIG_DEBUG_FEATURES) && defined(CONFIG_SYSTEM_TIME64) && \
defined(CONFIG_CLOCK_MONOTONIC)
/* Initial system timer ticks value close to maximum 32-bit value, to test
* 64-bit system-timer after going over 32-bit value. This is to make errors
* of casting 64-bit system-timer to 32-bit variables more visible.
*/
# define INITIAL_SYSTEM_TIMER_TICKS \
((uint64_t)(UINT32_MAX - (TICK_PER_SEC * 5)))
#else
# define INITIAL_SYSTEM_TIMER_TICKS 0
#endif
/****************************************************************************
* Public Types
****************************************************************************/

13
sched/clock/clock_initialize.c
View File

@ -68,19 +68,6 @@
#define SEC_PER_HOUR ((time_t)60 * SEC_PER_MIN)
#define SEC_PER_DAY ((time_t)24 * SEC_PER_HOUR)
#if defined(CONFIG_DEBUG_FEATURES) && defined(CONFIG_SYSTEM_TIME64) && \
defined(CONFIG_CLOCK_MONOTONIC)
/* Initial system timer ticks value close to maximum 32-bit value, to test
* 64-bit system-timer after going over 32-bit value. This is to make errors
* of casting 64-bit system-timer to 32-bit variables more visible.
*/
# define INITIAL_SYSTEM_TIMER_TICKS \
((uint64_t)(UINT32_MAX - (TICK_PER_SEC * 5)))
#else
# define INITIAL_SYSTEM_TIMER_TICKS 0
#endif
/****************************************************************************
* Public Data
****************************************************************************/