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262 Commits

Author SHA1 Message Date
Gregory Nutt
a1cb270478 configs/stm32f4discovery: Add timing support for the critical section monitor using the DWT CYCNT register. 2018-11-24 11:06:34 -06:00
Gregory Nutt
fc6084f311 Squashed commit of the following: 
fs/procfs/fs_procfsproc:  Extended the process ID ProcFS output to show per-thread maximum time for pre-emption disabled and maximum time within a critical section.

    sched/sched/sched_critmonitor.c:  Adds data collection logic in support of monitoring critical sections and pre-emption state.
 2018-11-24 10:32:45 -06:00
zhangyuan7
da737f3167 sched/group/group_foreachchild.c: group_foreachchild iterate by reverse order since the callback(e.g. group_killchildren) may remove the tcb from list 
sched Kconfig and sched/task/exit.c:  Add SCHED_EXIT_KILL_CHILDREN option to kill all child threads when the main thread of a task exits.
 2018-11-08 07:03:30 -06:00
Gregory Nutt
11a635dcb3 mm/iob: IOB free notifier should accept the work queue ID as a paramter. The notification may need to run on either the high- or low- priority work queue. sched/work: Change the default priority of the low-priority work queue to 100. 2018-09-11 08:49:39 -06:00
Gregory Nutt
4cb61bd8c2 sched/wqueue: Notifier design cleanup. The original concept used pre-allocated notification data structures. However, the notification dat must persist for an indeterminate amount of time. So the design was modified to use dynamically allocted data structures. This commit simplifies the design by removed some residual 'machinery' that is no longer needed. 2018-09-10 06:29:51 -06:00
Gregory Nutt
9d3148406c Signals were not a good choice of IPC to implement the poll function for several reasons: In order to handle the asynchrnous poll-related event, a substantial amount of state information is needed. Signals are only capable of passing minimal amounts of data. There are also complexities with performing kernel space signal handlers in kernel space code that is better to avoid. So, instead of signals, the equivalent logic was converted to run via a callback that executes on the high-priority work queue. 
Squashed commit of the following:

    Fix up some final compile isses.

    net/netdev:  Convert the network down notification logic to use the new wqueue-based notification factility.

    net/udp:  Convert the UDP readahead notification logic to use the new wqueue-based notification factility.

    net/tcp:  Convert the TCP readahead notification logic to use the new wqueue-based notification factility.

    mm/iob:  Convert the IOB notification logic to use the new wqueue-based notification factility.

    sched/wqueue:  Signals are not good IPCs to support the target poll functionality for several reasons including the amount of data that can be passed with a signal and in the fact that in protected and kernel modes, user threads executing signal handlers in protected, kernel memory is problematic.  Instead, convert the same logic to perform the notifications via function callback on the high priority work queue.
 2018-09-09 15:01:44 -06:00
Gregory Nutt
32e3e51678 net/netdev: Add signal notification for the case where the network goes down. 2018-09-09 10:39:25 -06:00
Gregory Nutt
fc127fd297 sched/signal: Add a generic signal notification facility. Modify the custom IOB available notifier so that it is now just a wrapper around this generic signal notification. This generic signal notification faility will, eventually, be used to support network polling. 
Squashed commit of the following:

    mm/iob:  The IOB available notifier is now just a wrapper around the common signal notifier.

    sched/signal:  Add a generic signal notification facility.

    sched/signal/sig_evthread.c:  More trivial naming changes.

    sched/signal:  Rename nxsig_notification() to nxsig_evthread() to make forthcoming naming additions more consistent.
 2018-09-09 08:32:37 -06:00
Gregory Nutt
a7265d71c6 This commit adds support for default signal actions for SIGSTOP, SIGSTP, and SIGCONT. 
Squashed commit of the following:

    Add procfs support to show stopped tasks.  Add nxsig_action() to solve a chicken and egg problem:  We needed to use sigaction to set default actions, but sigaction() would refuse to set actions if the default actions could not be caught or ignored.

    sched/signal:  Add configuration option to selectively enabled/disable default signal actions for SIGSTOP/SIGSTP/SIGCONT and SIGKILL/SIGINT.  Fix some compilation issues.

    sched/sched:  Okay.. I figured out a way to handle state changes that may occur while they were stopped. If a task/thread was already blocked when SIGSTOP/SIGSTP was received, it will restart in the running state.  I will appear that to the task/thread that the blocked condition was interrupt by a signal and returns the EINTR error.

    sched/group and sched/sched:  Finish framework for continue/resume logic.

    sched/signal:  Roughing out basic structure to support task suspend/resume
 2018-08-30 10:27:18 -06:00
Gregory Nutt
0756cf66ed sched/signal: Add support for SIGINT in addition to SIGKILL. drivers/serial: Use SIGINT instead of SIGKILL when control-C is pressed. 2018-08-28 12:15:31 -06:00
Gregory Nutt
499b89feed sched/signal: Default Signal Actions. Change some types to superficially simplify. Add configuration options to enabled default signal behaviors on a per-signal basis. I don't think users are prepared for SIGALRM to terminate the task (which is the correct default behavior if you don't change it). Extend the implementation of default signals so that it is totally table driven and extensible by simply mondifying the content of const tables. 2018-08-27 15:37:43 -06:00
Gregory Nutt
c0d234a474 Squashed commit of the following: 
drivers/serial/Kconfig:  It is no longer necessary to restrict Ctrl-C handling to the FLAT build

    sched/signal:  Add a new configuration option to select signal default actions, separate handling of signal default actions from both task startup logic and from the serial TTY Ctrl-C logic.  Add a signal set in the group structure to keep track of what signals have been set to the default action.  In dispatching signals in PROTECTED or KERNEL mode, use this signal set to determine if the default signal handler is attached and dispatch the signal in kernel mode for the default actions.
 2018-08-27 11:40:09 -06:00
ligd
11f8dc735c Squashed commit of the following: 
drivers/serial:  Add Ctrl-C/Ctrl-X support.  This is an initial working implementation that still requires that several details be resolved.

    sched/task/task_start.c: Add default signal action to SIGKILL.
 2018-08-26 08:49:08 -06:00
xuanlin
7e63b0b288 sched/wqueue, libs/libc/wqueue, configs: Remove work queue polling delay to simplify the code logic and save the power. 2018-08-25 14:58:07 -06:00
ligd
631071cded Squashed commit of the following: 
sched/wqueue:  Modify high priority work queue to support multiple threads.

    sched/wqueue and libs/libc/wqueue:  workqueues don't need set global data to zero since .bss is cleared automatically.  Removing this unnecessary initialization also avoids the loss the work items queued before initialization.
 2018-08-25 14:52:13 -06:00
Gregory Nutt
3931eaf015 sched/Kconfig: Fix a warning found in build testing. 2018-08-24 16:14:21 -06:00
zhuguangqing
d38be46655 sched/irq: Add support interrupt chains in NuttX. IRQ chain is very useful in these cases: (1) Multiple hardware connect to the same request line(e.g. PCI), (2) Need multiple driver to support one hardware block (like Linux MFD) 2018-08-24 15:10:23 -06:00
Xiang Xiao
3af35699b9 include/nuttx/clock.h, sched/sched: Support the CPU load measurement using timer_lowerhalf_s interface 2018-08-24 10:10:57 -06:00
anchao
95163b2c59 Squashed commit of the following: 
Author: Xiang Xiao <xiaoxiang@xiaomi.com>

     arch/arm/src/armv7-m:  Implement SYSTICK timer driver

   Author: anchao <anchao@pinecone.net>

     configs/sim/loadable:  Add loadable demo for arch sim
     sched/init: Restore previously reverted option to mount block device for INIT_FILEPATH case
     configs/stm3240g-eval/knxwm: Fix build breakage.

   Author: Gregory Nutt <gnutt@nuttx.org>
     configs:  With recent changes to apps/ all configurations that build applications as modules must now also select CONFIG_APPS_LOADABLE.

   Author: anchao <anchao@pinecone.net>
      configs/sim/loadable:  Add loadable demo for arch sim
       Kconfig and tools/Makefile.unix and : add dynamic application loadable support
 2018-08-23 11:08:22 -06:00
Gregory Nutt
b56d5a7548 Revert "sched/init: Add option to mount block device for INIT_FILEPATH case" 
This reverts commit e5f9b7d66b.
 2018-08-22 07:29:55 -06:00
Xiang Xiao
e5f9b7d66b sched/init: Add option to mount block device for INIT_FILEPATH case 2018-08-22 06:57:00 -06:00
anchao
0124b629a9 sched/symtab: Reference default symtab name to binfmt 2018-08-22 06:21:20 -06:00
Gregory Nutt
c2267a57a0 Kconfig files: Fix several errors noted by Alex Denisov in Bitbucket issue 115. 2018-08-05 10:48:02 -06:00
Alan Carvalho de Assis
283b73edc5 Fix lots of typos in C comments and Kconfig help text 2018-07-08 18:24:45 -06:00
Gregory Nutt
450e0809de sched/Kconfig: Add a dependency 2018-06-16 11:36:27 -06:00
Gregory Nutt
31278bc163 Kconfigs: Add comments and a dependency. 2018-02-04 16:32:14 -06:00
Gregory Nutt
0080225473 sched/irq: Add a configuration option to show interrupt information via a procfs file. 2018-01-12 18:26:46 -06:00
Gregory Nutt
7d131fe711 Update TODO list 2018-01-03 08:32:57 -06:00
Masayuki Ishikawa
6150299f54 Merged in masayuki2009/nuttx.nuttx/irq_spinlock (pull request #550) 
SMP: Introduce spin_lock_irqsave() and spin_unlock_irqrestore()

These APIs are simplified version of enter_critical_section() and
leave_critical_section() to protect data (e.g. registers) in SMP mode.
By using these APIs inside drivers, performace will be improved.

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>

Approved-by: Gregory Nutt <gnutt@nuttx.org>
 2017-12-07 19:39:04 +00:00
Jussi Kivilinna
8eaa587c98 sched: move POSIX thread specific data from pthread TCB to common TCB structure. This change allows using pthread_getspecific/pthread_setspecific from main thread. Patch also enables using pthread data with config option CONFIG_DISABLE_PTHREAD=y. 2017-10-25 07:06:42 -06:00
Gregory Nutt
42a0796615 Squashed commit of the following: 
sched/semaphore:  Add nxsem_post() which is identical to sem_post() except that it never modifies the errno variable.  Changed all references to sem_post in the OS to nxsem_post().

    sched/semaphore:  Add nxsem_destroy() which is identical to sem_destroy() except that it never modifies the errno variable.  Changed all references to sem_destroy() in the OS to nxsem_destroy().

    libc/semaphore and sched/semaphore:  Add nxsem_getprotocol() and nxsem_setprotocola which are identical to sem_getprotocol() and set_setprotocol() except that they never modifies the errno variable.  Changed all references to sem_setprotocol in the OS to nxsem_setprotocol().  sem_getprotocol() was not used in the OS
 2017-10-03 15:35:24 -06:00
Gregory Nutt
0de294a586 Fix lots of occurrences of 'the the', 'the there', 'the these', 'the then', 'the they. 2017-05-11 13:35:56 -06:00
Gregory Nutt
b51b72b2db pthreads: Re-order some operations so that mutexes are placed in the inconsistent state BEFORE the clean-up callbacks are called. 2017-04-10 08:11:16 -06:00
Gregory Nutt
941360bf12 Correct some spacing 2017-03-27 10:49:41 -06:00
Gregory Nutt
b07d3fc305 Rename CONFIG_MUTEX_TYPES to CONFIG_PTHREAD_MUTEX_TYPES 2017-03-27 09:08:14 -06:00
Gregory Nutt
666208cf23 pthread mutexes: Add option to support both unsafe and robust mutexes via pthread_mutexattr_get/setrobust(). 2017-03-26 18:37:24 -06:00
Gregory Nutt
8b3c554e45 pthreads: Add a configuration option to disable robust mutexes and revert to the traditional unsafe mutexes. 2017-03-26 17:37:28 -06:00
Gregory Nutt
f5a957158d Review of last PR: Setting CONFIG_SMP_NCPUS=1 should only be permitted in a debug configuration. 2017-03-22 06:29:38 -06:00
Masayuki Ishikawa
a1f0802855 Kconfig: Change the minimum SMP_NCPUS to 1 2017-03-22 10:04:37 +09:00
Gregory Nutt
c976a66f8d net/drivers/skeleton.c: Back out serialization changes of the last commit. They are not necessary in the skeleton.c example because the calls to net_lock() at the beginning of each worker function will enforce serialization. 2017-03-04 11:33:36 -06:00
Gregory Nutt
47ebe1e320 Update some comments 2017-03-03 12:48:58 -06:00
Gregory Nutt
04c9ccdd2d Update TODO list and some Kconfig comments. 2017-03-03 09:20:25 -06:00
Masayuki Ishikawa
d78113e4ad Revert "CONFIG_START_YEAR/MONTH/DAY not required if an RTC is used" 
This reverts commit 4035ed8c6c.
 2017-03-03 10:42:10 +09:00
Gregory Nutt
2c45f482b1 Module names are not needed in libc/modlib when the module library is used only for shared library support. 2017-01-29 12:23:24 -06:00
Gregory Nutt
5e94dd22bb Modules: Move first five of many C files from sched/module to libc/modlib 2017-01-29 10:05:15 -06:00
Gregory Nutt
2717e781f0 libc/modlib: Add build a configuration logic for a shared module library. 2017-01-29 08:55:27 -06:00
Gregory Nutt
68a7110195 sched/modules: Add support for dependencies between modules. 2017-01-27 11:43:27 -06:00
Gregory Nutt
1823c78663 Update some comments 2017-01-22 10:17:51 -06:00
Gregory Nutt
686041f8e7 CPU load: Correct computation of the nominal period to use when the source is a oneshot timer. 2017-01-22 07:12:22 -06:00
Gregory Nutt
edd9186540 ELF: Move ARMv7-A and ARMv7-R versions of ELF relocation logic to libc/machine 2017-01-21 14:40:26 -06:00
Masayuki Ishikawa
acbfa47f70 sched_note: Fix spinlock instrumentation 2017-01-12 08:04:28 -06:00
Gregory Nutt
018eb7c1d2 Cancellation points no longer depend on EXPERIMENTAL 2016-12-09 17:44:37 -06:00
Gregory Nutt
acaae12e8b Add pthread_testcancel(), pthread_testcancel(), and definitiions for cancellation types. 2016-12-09 07:23:00 -06:00
Gregory Nutt
6224e47533 pthread cleanup stack: Replace critical section with sched_lock/unlock(). The cleanup stack modification only needs to have the TCB stationary. The stack is never modified from interrupt level logic 2016-12-08 14:33:02 -06:00
Gregory Nutt
a1fbc2ad0d pthreads: Add pthread_cleanup_push() and pthread_cleanup_pop() 2016-12-08 09:27:13 -06:00
Gregory Nutt
9ee3f3b933 sched_note: Permit spinlock and critical section notes in in-memory buffer iff sched_not_get() interfaces is disabled. 2016-11-28 18:36:26 -06:00
Gregory Nutt
00215fbc98 sched_note: Add spinlock instrumentation; In SMP configurations, select to log only notes from certain CPUs 2016-11-28 10:33:46 -06:00
Gregory Nutt
d65be718c2 sched_note: Extend OS instrumentation to include some SMP events. 2016-11-27 17:14:57 -06:00
Gregory Nutt
120d29b480 Update some Kconfig comments 2016-11-06 09:06:37 -06:00
Gregory Nutt
4997ec7a1e ESP32 Core V2: Add an SMP configuration to support development (not yet usable). 2016-10-29 14:56:07 -06:00
Gregory Nutt
e6377641a8 sched/Kconfig: Add ranges to START_YEAR, MONTH, and DAY 2016-10-27 18:04:14 -06:00
Gregory Nutt
53b2de18eb Trivial typo fix 2016-08-20 13:23:41 -06:00
Gregory Nutt
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
Gregory Nutt
246773faa7 Rename CONFIG_SCHED_TIMEKEEPING to CONFIG_CLOCK_TIMEKEEPING. That is a better compartmentalized name. 2016-07-11 06:54:02 -06:00
Max Neklyudov
8db29071da timekeeping: initial implementation 2016-07-10 16:14:25 -06:00
Gregory Nutt
3fa41c0f18 Kconfig files: Fix some dependencies that have CONFIG_ in the variable name 2016-06-17 19:30:19 -06:00
Gregory Nutt
1cdc746726 Rename CONFIG_DEBUG to CONFIG_DEBUG_FEATURES 2016-06-11 14:14:08 -06:00
Gregory Nutt
3a74a438d9 Rename CONFIG_DEBUG_VERBOSE to CONFIG_DEBUG_INFO 2016-06-11 11:50:18 -06:00
Gregory Nutt
bc325bd597 Update Kconfig comments 2016-03-21 18:28:43 -06:00
Gregory Nutt
d20db82fcb Scheduler instrumentation: Fix some associated with monitoring critical sections 2016-03-21 17:08:07 -06:00
Gregory Nutt
f7b58e9dfd sched/: Move location (and form) of context switch instrumentation. 2016-03-21 14:08:31 -06:00
Gregory Nutt
7f19631338 sched/: Add option to buffer scheduler instrumentation data in memory. 2016-03-17 09:49:43 -06:00
Gregory Nutt
24468128de TLS: Simplify 2016-03-11 07:17:32 -06:00
Gregory Nutt
934069e422 TLS: Add logic to get/set arbitrary TLS values 2016-03-10 19:31:22 -06:00
Gregory Nutt
30b6ee96c9 Add basic definitions for TLS support 2016-03-10 11:56:33 -06:00
Gregory Nutt
7cb35587a3 Correct minor typos in a Kconfig file 2016-02-22 08:28:33 -06:00
Gregory Nutt
94bea6547b Fix two unterminated strings in Kconfig files 2016-02-18 17:13:03 -06:00
Gregory Nutt
384e51cb05 Add some additional schedule instrumentation 2016-02-16 15:21:45 -06:00
Gregory Nutt
ddbc948895 SMP: Minor SMP-related clean-up/improvements 2016-02-11 12:18:54 -06:00
Gregory Nutt
89bea6917c Kconfig: Architecture must indicate that it support multiple CPUs in order to enable SMP 2016-02-10 17:31:16 -06:00
Gregory Nutt
f5a3b1e89d Add EXPERIMENTAL configuration option to investigate some SMP issues 2016-02-10 10:27:48 -06:00
Gregory Nutt
2c0ad2564f Add CONFIG_SPINLOCK. Also need spinunlock() and spinlock_initialize() 2016-02-09 15:31:14 -06:00
Gregory Nutt
f348e68069 Update to use 64-bit timer when available 2016-01-21 11:54:26 -06:00
Gregory Nutt
8ee75a96fe Update TODO list and Kconfig help 2016-01-13 07:44:44 -06:00
Gregory Nutt
c1fff4706c signals: Adds a very limited, minimal implementation for SIGEV_THREAD 2015-12-30 15:01:14 -06:00
Gregory Nutt
9835eeb181 signals: Basic framework to support SIGEV_THREAD 2015-12-30 13:20:31 -06:00
Gregory Nutt
49554fe4fc Move module support from binfmt/ to sched/ so that it can be configured and built independently from binfmt features 2015-12-12 07:09:17 -06:00
Gregory Nutt
51f386d08a Fix more common typos 2015-08-16 11:07:23 -06:00
Gregory Nutt
484f148001 Sporadic scheduler: Add instrumentation hooks to support GPIO outputs 2015-07-27 08:37:25 -06:00
Gregory Nutt
27e21710fd This is basically a complete redesign of the sporadic scheduling logic due to limitations in the initial design 2015-07-25 12:50:53 -06:00
Gregory Nutt
ed031388ad sched/Kconfig: The sporadic scheduler option is no longer EXPERIMENTAL 2015-07-24 14:19:18 -06:00
Gregory Nutt
9095e8eab4 include/, sched/, and libc/: Add support for sporadic scheduling parameters in struct sched_param, posix_spawnattr_t, and pthread_attr_t. Update all user interfaces to pass sporadic scheduling parameters. Feature is dependent on EXPERIMENTAL and no changes have yet been made to core scheduling logic. 2015-07-23 13:16:32 -06:00
Gregory Nutt
2b3aae0ddc Add basic configuration options for SCHED_SPORADIC 2015-07-23 10:33:30 -06:00
Gregory Nutt
342f5fe33d Fix references to the no-longer-existent misc/ directory in comments, README files, and documentation 2015-06-28 08:08:57 -06:00
Gregory Nutt
1d534ff896 Convert the 64-bit usec limit to a 32-bit tick limit 2015-02-03 07:18:17 -06:00
Gregory Nutt
a448e0f69f On my platform I have just 16-bit timer clocked at 32kHz. As result oneshot timer max delay is 2s. The patch adds limit of maximum ticks in sched_timer_start (nuttx/sched/sched/sched_timerexpiration.c). From Macs N. 2015-02-03 06:25:19 -06:00
Gregory Nutt
937f9f23f1 strncpy will not copy the terminating \0 into the destination if the source is larger than the size of the destination. Ensure that the last byte is always zero and let strncpy only copy CONFIG_TASK_NAME_SIZE bytes. The issue of unterminated names can be observed in ps when creating a pthread while CONFIG_TASK_NAME_SIZE is set to 8. 2014-12-17 12:24:02 -06:00
Gregory Nutt
fcffafee30 Remove CONFIG_MAX_TASK_ARGS from all Kconfigs and defconfigs 2014-11-12 18:02:19 -06:00
Gregory Nutt
928b0bda3d Default for CONFIG_SCHED_HPWORK should be no 2014-10-14 16:56:37 -06:00
Gregory Nutt
179fabb019 Add description of work queues to the porting guide. Update comments 2014-10-14 10:21:18 -06:00
Gregory Nutt
e702d9396b Fix one missed name change from last big commit 2014-10-12 07:09:57 -06:00
Gregory Nutt
b78fe7c270 Rename CONFIG_SCHED_USRWORK to CONFIG_LIB_USRWORK 2014-10-11 15:59:40 -06:00
Gregory Nutt
9292e3d9de Decouple the user-space work queue from the kernel space work queues 2014-10-11 15:50:22 -06:00
Gregory Nutt
652d3ed29d Rename CONFIG_LIBC_AIO to CONFIG_FS_AIO since it is now an OS property 2014-10-05 15:44:43 -06:00
Gregory Nutt
31cdcde73a Add definitions for SIGPOLL 2014-10-05 06:02:37 -06:00
Gregory Nutt
81a4de4a4d Kconfig choice value needs a prompt 2014-09-11 07:18:33 -06:00
Gregory Nutt
e958040269 Add capability to perform initial board initialization on a separate worker thread. 2014-09-03 18:36:43 -06:00
Gregory Nutt
67a54fd52e ARMv7-A: A little more logic and a few more fixes for Cortex-A kernel build 2014-08-31 07:15:46 -06:00
Gregory Nutt
34ff07008a Add configuration options to start the system from a program on a file system 2014-08-30 13:27:23 -06:00
Gregory Nutt
2906ff6a4a Cosmetic: Fix all comments, defaults, etc. that references the defunct name user_start 2014-08-30 11:14:51 -06:00
Gregory Nutt
952d87587f If we run out of pre-allocated watchdog times, the logic will allocate additional timers from the heap. A reserve of pre-allocated watchdog timers is maintained so that there will always be timers available for interrupt handlers. 2014-08-21 08:44:29 -06:00
Gregory Nutt
686e5d7e3d Tickless: If using an ALARM, then really should report time of expiration 2014-08-12 10:00:32 -06:00
Gregory Nutt
66803d0db6 Define interfaces to use an alarm instead of an interval timer with the tickless option 2014-08-12 07:28:41 -06:00
Gregory Nutt
5ee57bda59 Some final tickless OS bugfixes. No longer EXPERIMENTAL. Update some comments 2014-08-07 19:11:22 -06:00
Gregory Nutt
c9661ad5a7 Change all time conversions. Yech. New timer units in microseconds breaks all existing logic that used milliseconds in the conversions. Something likely got broken doing this, probably because I confused a MSEC2TICK conversion with a TICK2MSEC conversion. Also, the tickless OS no appears fully functional and passes the OS test on the simulator with no errors 2014-08-07 18:00:38 -06:00
Gregory Nutt
17ea50b45e Fix compler error in tickless code when round robin scheduling is enabled. Other cosmetic fixes to comments 2014-08-07 14:14:09 -06:00
Gregory Nutt
0aa7209765 Change CONFIG_MSEC_PER_TICK to CONFIG_USEC_PER_TICK. This gives more options for system timers in general, but more importantly, let's us realize higher resolution for the case of CONFIG_SCHED_TICKLESS=y -- of course, at the risk of some new interger overvflow problems 2014-08-07 13:42:47 -06:00
Gregory Nutt
caba61999a Remove CONFIG_DISABLE_CLOCK 2014-08-07 12:35:24 -06:00
Gregory Nutt
520a51a3e1 Implements the tickless OS 2014-08-07 11:39:16 -06:00
Gregory Nutt
f0eb4235d1 Add a new option CONFIG_SCHED_TICKLESS to enable the tickless OS. This is a work in progress but should be relatively safe since the new features are only enabled by this option (Safer but not 100% safe since it does not protect from typos and other dumb errors). 2014-08-06 18:25:42 -06:00
Gregory Nutt
e3310888e2 Cosmet updates to some comments 2014-07-17 17:58:24 -06:00
Gregory Nutt
4035ed8c6c CONFIG_START_YEAR/MONTH/DAY not required if an RTC is used 2014-05-26 07:45:15 -06:00
Gregory Nutt
84d28641b7 SAM4S Xplained Pro: Clean-up of LED usage and also some integration of new timer features. From Bob Doiron 2014-05-05 14:38:29 -06:00
Gregory Nutt
8d758a13de The CONFIG_SYSTEMTICK_EXTCLK selection should only be available on systems that support it 2014-04-30 15:32:06 -06:00
Gregory Nutt
f7485ea962 Updated system timer logic from Bob Doiron 2014-04-30 14:46:26 -06:00
Gregory Nutt
6be62a7ef3 configs/*/defconfig: Increase the number of pre-allocated watchdogs in configurations that use networking or USB 2014-04-09 10:57:56 -06:00
Gregory Nutt
70815e5673 sched/Kconfig: Add another layer of menuing to simply this level 2014-03-31 11:32:22 -06:00
Gregory Nutt
4f59bc5878 Add CONFIG_CLOCK_MONTONIC 2014-03-31 10:01:03 -06:00
Gregory Nutt
7f739b0411 Support an asynchronous, 'external' clock to get better CPU load measurements 2014-02-27 14:13:53 -06:00
Gregory Nutt
59769d44f1 Add logic to meaure and calculate the CPU load percentage. From David Alessio 2014-02-22 15:20:12 -06:00
Gregory Nutt
d092f888fb Add CONFIG_DEFAULT_SMALL that will select default values for configuration settings based upon either more features or smaller footprint. Turns out not be be useful for modifying existing defconfig files because the defaults do not apply in that case 2014-02-20 18:49:45 -06:00
Gregory Nutt
7a173d58b5 /proc/uptime logic needs to sample timer in case multiple reads are used to read the time 2013-12-14 15:25:23 -06:00
Gregory Nutt
d9f16bba82 apps/platform: A new now for platform-specific applicatin code 2013-10-30 09:04:37 -06:00
Gregory Nutt
f9b9875952 Various Kconfig files still have references to CONFIG_ variables. Some in harmless comments, some in config definionts which is not harmless. All removed 2013-04-25 15:52:00 -06:00
Gregory Nutt
b553609351 New Kconfig convention: Extra indentation in comments will render as HTML preformatted text 2013-04-22 09:10:58 -06:00
patacongo
6feabf0fee Implement user-mode work queues 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5712 42af7a65-404d-4744-a932-0658087f49c3
 2013-03-06 00:02:07 +00:00
patacongo
d932e56dca STM32 F4 patches from Petteri Aimonen (mostly USB) 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5652 42af7a65-404d-4744-a932-0658087f49c3
 2013-02-15 14:37:37 +00:00
patacongo
b48009644f Rename _TCB to struct tcb_s 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5610 42af7a65-404d-4744-a932-0658087f49c3
 2013-02-04 18:46:28 +00:00
patacongo
151dfee1f9 Add a start hook that can be setup to call a function in the context of a new thread before the new threads main() has been called. 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5571 42af7a65-404d-4744-a932-0658087f49c3
 2013-01-27 15:52:58 +00:00
patacongo
caf5fdf217 Fix some missing logic and inconsistencies in child status logic; Fix a bug introduced into sigaction() 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5560 42af7a65-404d-4744-a932-0658087f49c3
 2013-01-24 23:18:32 +00:00
patacongo
4709eeb41a apps/examples/nettest and poll: Complete Kconfig files 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5556 42af7a65-404d-4744-a932-0658087f49c3
 2013-01-24 16:28:15 +00:00
patacongo
3736ae6ba9 Add logic to retain child task exit status if so configured 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5553 42af7a65-404d-4744-a932-0658087f49c3
 2013-01-23 22:23:46 +00:00
patacongo
956bded9c1 Add logic to automatically unload module on exit; Several patches from Mike Smith 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5528 42af7a65-404d-4744-a932-0658087f49c3
 2013-01-17 14:43:55 +00:00
patacongo
b8e53dad52 Use SIGCHLD with waitpid(); implemented wait() and waitid() 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5515 42af7a65-404d-4744-a932-0658087f49c3
 2013-01-13 18:53:00 +00:00
patacongo
3f0b723b7c Fix a *critical* bug in the task exit logic. Implements SIGCHILD 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5513 42af7a65-404d-4744-a932-0658087f49c3
 2013-01-12 19:58:45 +00:00
patacongo
cc0536eae9 configs/p112: Add a configuration for the Z180 P112 board 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5429 42af7a65-404d-4744-a932-0658087f49c3
 2012-12-11 21:42:15 +00:00
patacongo
0f218d0e00 Add support for the Z180 MMU and generic hooks for processes 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5428 42af7a65-404d-4744-a932-0658087f49c3
 2012-12-11 18:04:04 +00:00
patacongo
df9a72994f configs/xtrs/nsh and pashello now use kconfig-frontends and build Windows native 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5422 42af7a65-404d-4744-a932-0658087f49c3
 2012-12-09 17:34:53 +00:00
patacongo
27c6b6263f Add __cxa_atexit(); atexit() is now built on top of on_exit() 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5292 42af7a65-404d-4744-a932-0658087f49c3
 2012-11-01 16:50:53 +00:00
patacongo
f39a3c9417 Remove several unused configuration values 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5113 42af7a65-404d-4744-a932-0658087f49c3
 2012-09-08 04:29:48 +00:00