e6377641a8
sched/Kconfig: Add ranges to START_YEAR, MONTH, and DAY
2016-10-27 18:04:14 -06:00
123c520db4
Correct time initialization for the case where time is initialized from settings in the .config file. The correct range for month (tm_mon) internally is 0-11, not 1-12 as it is in the .config file.
2016-10-27 08:36:24 -06:00
6a20560ba2
Trivia fix to typo in comment
2016-10-26 12:29:36 -06:00
3e13ed2400
Within the OS, when a thread obtains a semaphore count it must call sem_addholder() if CONFIG_PRIORITY_INHERITANCE is enabled. If a count is available, then sem_wait() calls sem_addholder(), otherwise it waited for the semaphore and called sem_addholder() when it eventually received the count.
...
This caused a problem when the thread calling sem_wait() was very low priority. When it received the count, there may be higher priority threads "hogging" the CPU that prevent the lower priority task from running and, as a result, the sem_addholder() may be delayed indefinitely.
The fix was to have sem_post() call sem_addholder() just before restarting the thread waiting for the semaphore count.
This problem was noted by Benix Vincent who also suggested the solution.
2016-10-26 07:23:15 -06:00
8669183852
sched/pthread and task: When a pthread is started, there is a small bit of logic that will run on the thread of execution of the new pthread. In the case where the new pthread has a lower priority than the parent thread, then this could cause both the parent thread and the new pthread to be blocked at the priority of the lower priority pthread (assuming that CONFIG_PRIORITY_INHERITANCE is not selected).
...
This change temporarily boosts the priority of the new pthread to at least the priority of the new pthread to at least the priority of the parent thread. When that bit of logic has executed on the thread of execution of the new pthread, it will then drop to the correct priority (if necessary) before calling into the new pthread's entry point.
2016-10-01 11:38:22 -06:00
75104b0808
Remove duplicate function prototype from wrong header file
2016-10-01 10:56:42 -06:00
9fa1024eef
vector table should have dimension NR_IRQS, not NR_IRQS+1
2016-09-22 07:56:12 -06:00
f0b4705d57
Correct a comment
2016-09-15 13:10:42 -06:00
e3bbfa2d85
mq_send() was not setting the errno value on certain failures to allocate a message
2016-09-15 12:42:24 -06:00
368f241637
Correct some comments
2016-09-15 08:46:41 -06:00
952268274a
sched/: Fix misplaced right bracket; remove redundant assertion.
2016-09-06 12:27:12 -06:00
7582c2344c
sched/: Eliminate calculation of a possibly unused value.
2016-09-06 10:28:19 -06:00
e034c78516
improve some assertions; add some comments.
2016-09-06 10:21:41 -06:00
27919549f1
sched/: Simplify some child/parent logic
2016-09-06 08:40:55 -06:00
05aa586aa6
sched/: Move fields related to parent/child task relationship out of TCB into group structure.
2016-09-06 08:28:31 -06:00
858af4295c
The TCB nchildren field should not be incremented when pthreads are created.
2016-09-06 07:34:36 -06:00
60b70f7dbb
Make xorshift128 re-entrant so that we do do have to suffer the overhad of serialization controls.
2016-08-21 07:47:53 -06:00
53b2de18eb
Trivial typo fix
2016-08-20 13:23:41 -06:00
300361539a
sched/sched_cpuload_oneshot: Use the oneshot timer with optional entropy to measuer cPU load if so configured.
2016-08-20 12:47:07 -06:00
6f833be9d5
Separate XorShift128 PRNG from /dev/urandom and make it generally available.
2016-08-20 11:36:02 -06:00
5ea77118aa
Explicitly initialize the group tg_exitsem with sem_init(). The existing logic worked because the correct initialization value is all zero, but it is better to initialize the semaphore explicitly. Noted by Jouko Holopainen.
2016-08-10 07:38:07 -06:00
3404b3cb4a
sched/: Review and correct some stylistic inconsistencies
2016-08-07 08:32:11 -06:00
18ce4ff57b
sched/: Review and correct some stylistic inconsistencies
2016-08-07 08:25:30 -06:00
94d34bba47
Fix a typo in a Make.defs file
2016-07-28 09:46:28 -06:00
309480d0f9
Merge branch 'timekeeping' of bitbucket.org:nuttx/nuttx
2016-07-28 09:34:00 -06:00
7370d3171a
Move include/nuttx/lib.h to include/nuttx/lib/lib.h
2016-07-21 14:05:44 -06:00
246773faa7
Rename CONFIG_SCHED_TIMEKEEPING to CONFIG_CLOCK_TIMEKEEPING. That is a better compartmentalized name.
2016-07-11 06:54:02 -06:00
f47b69e1f0
Add support for adjtime system call
2016-07-10 16:55:32 -06:00
c326b6320a
Add description of adjtime() from Linux man page
2016-07-10 16:47:06 -06:00
8db29071da
timekeeping: initial implementation
2016-07-10 16:14:25 -06:00
830af912a1
Add sig_raise()
2016-07-04 09:32:36 -06:00
891113dac9
sched/semaphore: Fix setting EINVAL in sem_post() and sem_wait()
2016-06-28 10:15:52 -04:00
62d8f839c7
SYSLOG: Now a two phase initialization. Some SYSLOG channels cannot be initialized until later in the bringup
2016-06-21 07:52:24 -06:00
2a751068e6
Without lowsyslog() *llerr() is not useful. Eliminate and replace with *err().
2016-06-20 12:44:38 -06:00
43eb04bb8f
Without lowsyslog() *llinfo() is not useful. Eliminate and replace with *info().
2016-06-20 11:59:15 -06:00
f4c47636e7
SYSLOG: Debug output from the IDLE task should be forced like interrupt level output
2016-06-20 07:35:38 -06:00
3fa41c0f18
Kconfig files: Fix some dependencies that have CONFIG_ in the variable name
2016-06-17 19:30:19 -06:00
0c8c7fecf0
Add _ to the beginning of all debug macros to avoid name collisions
2016-06-16 12:33:32 -06:00
f3ec664f63
Debug output level (error, warning, info) is now selectable on a per-subsystem, per-driver basis
2016-06-12 13:08:23 -06:00
13cac3b592
sched/: Change some *err() message to *info() messages if what was a *dbg() message does not indicate and error condition.
2016-06-11 16:42:42 -06:00
a1469a3e95
Add CONFIG_DEBUG_ERROR. Change names of *dbg() * *err()
2016-06-11 15:50:49 -06:00
e99301d7c2
Rename *lldbg to *llerr
2016-06-11 14:55:27 -06:00
86b79b33cf
Reserver the name 'err' for other purposes
2016-06-11 14:40:07 -06:00
1cdc746726
Rename CONFIG_DEBUG to CONFIG_DEBUG_FEATURES
2016-06-11 14:14:08 -06:00
fc3540cffe
Replace all occurrences of vdbg with vinfo
2016-06-11 11:59:51 -06:00
3a74a438d9
Rename CONFIG_DEBUG_VERBOSE to CONFIG_DEBUG_INFO
2016-06-11 11:50:18 -06:00
80d0b2736e
Reorder some logic: (1) set initial CPU IDLE task regsters AFTER allocating stack, (2) invalidate cache in CPU start-up BEFORE handling first interrupt.
2016-05-22 15:01:49 -06:00
07acd5327a
SMP: Clean CPU0 D-Cache before starting new CPU; Invalidate D-Cache when new CPU started.
2016-05-20 12:39:02 -06:00
32838fcc2c
enter/leave_critical_section: In SMP configuration, may attempt to access the task lists before they have been initialized
2016-05-18 09:17:01 -06:00
3d87005e5a
Fix some compilation issues when certain combinations of debug options are selected.
2016-05-17 12:06:32 -06:00
Gregory Nutt
Sagitta Li
Max Neklyudov
Paul A. Patience