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872 Commits

Author SHA1 Message Date
Gregory Nutt
5772813d29 Change the name of the local variable sigset to set to prevent name collisions with the function of the same name 2015-07-31 13:32:10 -06:00
Anton D. Kachalov
4a16bc6924 [sched/pthread/pthread_kill] Add missed header for enabled CONFIG_SCHED_HAVE_PARENT 
Signed-off-by: Anton D. Kachalov <mouse@yandex-team.ru>
 2015-07-30 18:51:37 +03:00
Gregory Nutt
3a93be8902 Add strictly limit check: The current sporadic scheduler cannot handler duties > 50% 2015-07-30 07:36:01 -06:00
Gregory Nutt
a6ccb7f308 Sporadic scheduler: Third design. Now it looks closer to what I want 2015-07-28 14:26:31 -06:00
Gregory Nutt
dd5b065753 Sporadic: This interim version works pretty well, but the things that I had to do were nasty and mean that -- sigh -- there will be another redesign coming 2015-07-28 08:03:40 -06:00
Gregory Nutt
95ca3a1d1e Fixes several more sporadic scheduler bugs 2015-07-27 18:08:21 -06:00
Gregory Nutt
a7322f5a6d Sporadic scheduler: Fix how suspension time is calculated 2015-07-27 15:54:19 -06:00
Gregory Nutt
e33c727520 Sporadic scheduler: Move pending time into each timer instance 2015-07-27 14:48:21 -06:00
Gregory Nutt
e66e2f5c0f Use the last budgeted time from the last timer started 2015-07-27 13:13:30 -06:00
Gregory Nutt
8c754ccd4f Sporadic scheduler: misc bug fixes 2015-07-27 11:55:52 -06:00
Gregory Nutt
cc1c7731da Sporadic scheduler: Fix budget computations when replenishment intervals are nested 2015-07-27 09:35:52 -06:00
Gregory Nutt
484f148001 Sporadic scheduler: Add instrumentation hooks to support GPIO outputs 2015-07-27 08:37:25 -06:00
Gregory Nutt
7c04ad8209 Sporadic scheduler: Cosmetic change to debug output and to comments 2015-07-26 15:33:27 -06:00
Gregory Nutt
99664b7811 Sporadic scheduler: Add logic to collection the partial timer expiration when a sporadic thread is suspended in tickless mode 2015-07-26 15:03:47 -06:00
Gregory Nutt
4bdbc387f5 Update TODO list; Fix a few errors introduced withe the last changes to the sporadic scheduler 2015-07-26 10:51:04 -06:00
Gregory Nutt
3e88b77540 Sporadic scheduler: Handle a case when the scheduler is resumed before it has even had a chance to run 2015-07-26 08:08:45 -06:00
Gregory Nutt
26fd7a7ccf The redesigned sporadic scheduler now seems to be functional 2015-07-25 13:22:46 -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
a1031417e8 Comment out part of sporadic scheduler logic: Part of replenishment logic is bogus 2015-07-24 18:18:58 -06:00
Gregory Nutt
1d88dc1fb6 Fix some compilation error when both TICKLESS mode and the SPORADIC scheduler are enabled 2015-07-24 14:35:07 -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
411941d8cd Fix an syntax error in a debug asserion 2015-07-24 13:02:19 -06:00
Gregory Nutt
12cdd2a8fe Fix some bad conditional compilation 2015-07-24 12:27:15 -06:00
Gregory Nutt
0d71260bf2 sched/: Separate the round-robin logic into a separate file so that it is symmetric with the sporadic stuff. Integrate the sporadic scheduler into the time tick interrupt handling and into the tickless operation. 2015-07-24 11:49:28 -06:00
Gregory Nutt
c6c424583d Fix a test for valid scheduling policies 2015-07-24 10:20:22 -06:00
Gregory Nutt
4490744def Add logic to reset the replenish the sporadic scheduler when a task is resumed 2015-07-24 09:55:02 -06:00
Gregory Nutt
ea7dbc984b Add basic sporadic schedule state machine 2015-07-24 09:03:21 -06:00
Gregory Nutt
3b1306078b Sporadic Scheduler: Ensure that the replenishment period is greater than or equal to the budget period 2015-07-23 15:08:41 -06:00
Gregory Nutt
5baa738019 Most cosmetic, but includes some fixes to some range checking 2015-07-23 14:36:49 -06:00
Gregory Nutt
53a17bfd99 Fix a newly introduced compilation error when round roben scheduling is disabled 2015-07-23 13:35:48 -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
13e837b957 Merge remote-tracking branch 'origin/master' into sporadic 2015-07-23 11:25:52 -06:00
Gregory Nutt
aa90da2bc8 pthread_create: Fix an (unlikely) error in fallback value in the event of a failure (which should never occur) 2015-07-23 11:25:25 -06:00
Gregory Nutt
2b3aae0ddc Add basic configuration options for SCHED_SPORADIC 2015-07-23 10:33:30 -06:00
Gregory Nutt
146bdc3c93 TCB: Increase the size of the scheduling policy field from 1 to 2 bits to allow additional, planned scheduling policies 2015-07-23 10:15:07 -06:00
Gregory Nutt
e69d14d89b Fix some warnings/errors detected by nuttx/tools/testbuilds.sh 2015-07-10 18:41:26 -06:00
Max Neklyudov
14e742b108 Implement WNOHANG for waitpid() only and for the case of CONFIG_SCHED_HAVE_PARENT not selected. From Max Neklyudov. 2015-07-02 09:34:58 -06:00
Jussi Kivilinna
13d9383679 Group binding needs to be cleared before sched_releasetcb(), as otherwise group_leave() will be called and group->tg_nmembers decremented or group being released. group_leave() should be called only after group_join() is called, not after group_bind(). From Jussi Kivilinna. 2015-07-01 06:24:34 -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
Max Neklyudov
61af0d511f Use up_timer_gettime for CLOCK_MONOTONIC in tickless mode. From Max Neklyudov. 2015-06-22 06:37:26 -06:00
Juha Niskanen
e1846dff82 sched/pthread: Implement pthread_mutex_trylock() for recursive mutexes 2015-06-16 08:32:20 -06:00
Juha Niskanen
d16053c33c sched/pthread: Use -1 instead of 0 as PID for unclaimed mutexes 2015-06-16 08:27:38 -06:00
Gregory Nutt
d8db596b3b POSIX message queues: Move mq_setattr() and mq_getattr() from nuttx/libc/mqueue to nuttx/sched/mqueue. Also add sysyscall support for mq_setattr() and mq_getattr(). This is necessary in protected and kernel builds because in those cases the message queue structure is protect and cannot be accessed directly from user mode code. Noted by Jouko Holopainen. 2015-06-03 09:24:17 -06:00
Gregory Nutt
84f0303fc0 mq_timedreceive() move the location where the errno value is set; the TIMEDOUT errno setting was being overwritten by subsequent actions before returning. Noted by Freddie Chopin. 2015-06-03 07:24:50 -06:00
Gregory Nutt
4adda9d428 Fix numerous typos in configuration variable names. Tracked down by Alan Carvalho de Assis 2015-05-23 17:08:35 -06:00
Gregory Nutt
3adcae8ffb Update the type passed to watchdog timer handlers. Using uint32_t is a problem for 64-bit machines. 2015-05-18 08:53:42 -06:00
Gregory Nutt
16276a4793 Change the order of some operations to prevent a debug assertion from firing. 2015-05-18 06:34:54 -06:00
Gregory Nutt
cc77a28f40 If HAVE_GROUP_MEMBERS is not defined, then pthread_kill() really is the same as kill() 2015-05-13 20:34:21 -06:00
Gregory Nutt
4417728955 Re-implemened pthread_kill(). It as just a simple wrapper around kill() but since the correct dispatching of singles for multi-threaded task groups has been implemented, calling kill() does no work. The corrected implementation of pthread_kill() will direct the signal specifically to the specific pthread and no other. 2015-05-13 14:43:43 -06:00
Gregory Nutt
8cb4e78a1a Complete implementation of the IPv6 routing logic. From Max Neklyudov. 2015-05-13 07:22:02 -06:00
Gregory Nutt
071658bb6d Another missing semicolon 2015-04-23 07:18:59 -06:00
Gregory Nutt
093a144934 sem_wait(): Missing comma on debug statement caused compile error with DEBUG on. Why hasn't that been noted before? 2015-04-23 07:15:55 -06:00
Gregory Nutt
f161a1d0f7 atexit: Fix reference to undefined variable in certain configurations. From Juha Niskanen 2015-04-14 07:31:35 -06:00
Gregory Nutt
b4423c1eed Make some file section headers more consistent with standard 2015-04-08 06:47:36 -06:00
Gregory Nutt
af6d9e2684 sched: Do not use uninitialized boolean in waitpid(). From Juha Niskanen 2015-03-12 07:45:10 -06:00
Gregory Nutt
caea44a624 Fix a case in mq_timedsend() where the return errno value was being overwritten 2015-03-10 12:05:33 -06:00
Gregory Nutt
7d46801f46 Reorder some operations to minimize a race condition 2015-03-10 10:41:21 -06:00
Gregory Nutt
4c6057eca1 mq_timedsend(): Do check for time errors if the message queue is not full. Noted by Freddie Chopin 2015-03-10 09:42:35 -06:00
Gregory Nutt
12d61531aa Move board_ prototypes from arch.h to board.h 2015-02-27 20:02:03 -06:00
Gregory Nutt
127951e029 Fix places where the errno value was being overwritten by subsequent actions so that the returned errno value was incorrect. From Max Neklyudov. 2015-02-25 07:45:04 -06:00
Gregory Nutt
c99d927527 When an RTC is used, clock_systimespec() must subtract the basetime from the RTC time 2015-02-25 07:24:03 -06:00
Gregory Nutt
cded7ea682 Fix some time value changes; mostly changing greater than 1000000000 to greater than or equal to 1000000000. From Juha Niskanen 2015-02-20 07:07:36 -06:00
Gregory Nutt
8840102554 Networking: Divide net_intiialize() into net_setup() and net_initialize() to solve a chicken-and-egg problem. net_setup() must be caleld before up_initialize() is called so that networking data structures are ready to register new network devices. 
net_initialize() now does only timer related operations and is called AFTER up_initialize() where the timers are configured.  This is really.
 2015-02-14 06:36:53 -06:00
Gregory Nutt
a1d3faaa8a Update ChangeLog 2015-02-13 18:39:43 -06:00
Gregory Nutt
bc273596bb Back out commit d998cbdfa6c10dbd8074dd43c39c23a006505987 2015-02-13 18:32:15 -06:00
Gregory Nutt
0fcd620404 Move the initialization of the networking subsystem to AFTER up_initialize is called. Fromo Macs Neklyudov. 2015-02-13 13:41:21 -06:00
Gregory Nutt
3724a5e98e RTC: Remove all backdoor interfaces from rtc.h 2015-02-13 08:41:34 -06:00
Gregory Nutt
d9f960e97b Fix a problem in clock_systimer64 that occurs when (1) the 64-bit system time is enabled, and (2) the value of CONFIG_USEC_PER_TICK is less than 1 millisconds (such as when using the tickless mode of operation). In that case, the convertion of time to 64-bit millisecond value in clock_systmer64() causes some bad times to be returned. Time was converted to milliseconds, then to configured ticks. Precision was lost in the millisecond convertion. 
The fix is to first convert time to a 64-bit microsecond value, then to the configured tick value.

Noted by David Sidrane.
 2015-02-13 06:13:47 -06:00
Gregory Nutt
147042218b gettimeofday() and settimeofday(): Move gittimeofdady() from sched/clock to libc/time. All remove gettimeofday() from NuttX system calls. It is only a wrapper around clock_settime() and does not need a trap. gettimeofday() is no longer tried as a core OS interface. 
gettimeofday has been decremented in POSIX 2008.  settimeofday() was never part of POSIX, but I decided to add it to libc as well just for symmetry.
 2015-02-12 11:10:46 -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
c5ab7c39d3 Eliminates a warning. From Macs N 2015-02-03 06:44:59 -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
e69003cbf7 clock_systimespec(): Fixes for compilation errors in certain configurations. From Macs N. 2015-01-30 08:19:40 -06:00
Gregory Nutt
6bc9a0c9c6 Fix backward calculation in the work queue timing. From Liio Chen via the PX4 repository 2015-01-27 06:17:02 -06:00
Gregory Nutt
826f5516ff Semaphores: sem_waitirq.c must be built when signals are disabled. That is because not handles not only the case of semaphore wait being awakened by a signal, but also the case with sem_timedwait.c when the semaphore wait is awakened by a timeout. 2014-12-28 15:03:12 -06:00
Gregory Nutt
78b755961f Semahores: Remove a warning with SIGNALS are disabled 2014-12-28 14:54:40 -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
b3a1939020 Sempahores: Add logic to clean up after task_delete() or pthread_cancel() if the task happens to be waiting on a semaphore when it is cancelled 2014-12-13 12:02:25 -06:00
Gregory Nutt
1003ee3e9a Costmetic change to a comment 2014-12-13 10:41:57 -06:00
Gregory Nutt
ff87e2e02a In message queue created return ENOSPC error if size exceeds the configured size of pre-allocatd messages; Use ENOSPC vs ENOMEM per OpenGroup.org. From Pierre-Noel Bouteville 2014-12-06 07:18:48 -06:00
Gregory Nutt
ad05793c0f msg type should be char * not void * in mq_send, mq_timedsend, mq_receive, and mq_timedreceive. Noted by Pierre-Noel Bouteville 2014-12-05 19:16:14 -06:00
Gregory Nutt
2ab604f74f Fix more issues detected by cppcheck 2014-11-25 14:25:02 -06:00
Gregory Nutt
1aa528a572 More fixes to problems noted by cppcheck. Some are kind of risky; some are real bugs. 2014-11-25 14:10:35 -06:00
Gregory Nutt
6f94e5e4be Cosmetic chnages to comments 2014-11-20 07:10:48 -06:00
Gregory Nutt
8c28718bcb alling mq_timedreceived with immediate timeout was getting stuck and not 
timeout. Immediate timeout is achieved by setting absolute timeout value to
past time, for example abstime={ .tv_sec=0, .tv_nsec=0 }. However absolute
time was converted to relative time using unsigned integer arithmetic and
resulted large ticks count by clock_abstime2ticks, instead of expected negative
ticks value.

Patch corrects clock_abstime2ticks to return negative ticks, if absolute time
is in the past.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@haltian.com>
 2014-11-19 09:25:00 -06:00
Gregory Nutt
9e290c10b5 Fix some compile issues introduces with removal of CONFIG_MAX_TASK_ARGS 2014-11-14 09:53:11 -06:00
Gregory Nutt
838f2053e4 Fix some compile errors introduce in last commits 2014-11-13 07:44:45 -06:00
Gregory Nutt
bc265d74e7 task_create: Don't even try if the accumulated size of the argument list is larger than the stack 2014-11-13 06:44:15 -06:00
Gregory Nutt
bb9b0f572d vfork no longer depends on CONFIG_MAX_TASK_ARGS 2014-11-12 19:01:29 -06:00
Gregory Nutt
4638a97f97 task_start() no longer depends on CONFIG_MAX_TASK_ARGS 2014-11-12 18:54:35 -06:00
Gregory Nutt
ffbd6cf10a task_setup() no longer depends on CONFIG_MAX_TASK_ARGS 2014-11-12 18:49:58 -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
2caeead612 Fix an important bug in the watchdog creation logic 2014-11-10 18:15:26 -06:00
Gregory Nutt
fcc2a1bb4b Fix incorrect comment 2014-11-07 15:54:24 -06:00
Gregory Nutt
2da26f7884 More fixes to tickless operation, alarm/mode code. From Brandon Warhurst 2014-10-23 07:13:57 -06:00
Gregory Nutt
a7a5c8cff3 Fixes to tickless operation code. From Brandon Warhurst 2014-10-23 06:41:31 -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
c9563da832 Missing workqueue logic 2014-10-12 17:19:51 -06:00
Gregory Nutt
e702d9396b Fix one missed name change from last big commit 2014-10-12 07:09:57 -06:00
Gregory Nutt
c9d7472d68 Change naming of HP work queue configuration varaibles to be symmetric with LP work queue naming 2014-10-11 17:03:44 -06:00
Gregory Nutt
1a27a4d4c0 Eliminate warnings 2014-10-11 17:02:35 -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
bb1d91bd83 Make building of low-priority work queue independent of also building the high-priority work queue 2014-10-11 14:43:24 -06:00
Gregory Nutt
c0b703ac73 Fix some missing conditional compilation that caused build failures in some configurations 2014-10-11 08:50:00 -06:00
Gregory Nutt
d2424ac65c Fix a couple of problems introduced in the last commmits 2014-10-11 08:29:26 -06:00
Gregory Nutt
0218f01f12 If there mutliple low-priority worker threads, only one needs to perform garbage collection 2014-10-11 07:09:21 -06:00
Gregory Nutt
234f73cb09 Add logic for priority inheritance with multiple worker threads. How should this work? Tentatively, the all get reprioritized together. It would be best to just reprioritize the single thread doing the high priority work, but we don't know which that will be in advance 2014-10-10 17:47:39 -06:00
Gregory Nutt
4a4b3ac537 Add support for multiple low-priority worker threads 2014-10-10 16:24:50 -06:00
Gregory Nutt
438e3e1a90 Fix a few bugs introduced in the last checkin 2014-10-10 15:06:13 -06:00
Gregory Nutt
cf59a195ba User-mode work queue logic should not disable interrupts 2014-10-10 14:52:04 -06:00
Gregory Nutt
16a3e83258 Add support for delays of different durations in work queue processing 2014-10-10 13:21:37 -06:00
Gregory Nutt
75e7a4dbfc Minor changes to work queue timing logic 2014-10-10 12:27:11 -06:00
Gregory Nutt
b2cebaa9d4 Modularize starting of worker threads to better isolate individual initialization characteristics 2014-10-10 09:38:28 -06:00
Gregory Nutt
2015fd76e2 Fix some conditional logic in last work queue repartitioning change 2014-10-10 08:47:41 -06:00
Gregory Nutt
1afc9773ac Decoupling work queue data structures. This is part of the preparation to support multiple low-priority worker threads 2014-10-10 08:35:58 -06:00
Gregory Nutt
6220256a09 Repartition work queue code. Move kernel-specific parts from libc/wqueue to sched/wqueue 2014-10-10 06:22:51 -06:00
Gregory Nutt
7f36c4e97b Update some Kconfig comments; Add a upper limit on the lower priority worker thread for priority inheritance 2014-10-07 17:11:26 -06:00
Gregory Nutt
322f9f401c Simplify how C source files are selected in the build 2014-10-07 07:42:36 -06:00
Gregory Nutt
d7843c8e24 Add support for priority inheritance on the low priority worker queue 2014-10-07 07:41:52 -06:00
Gregory Nutt
38ddbc774f Cosmetic change to comments 2014-10-06 18:03:01 -06:00
Gregory Nutt
37cf4135c4 fs_initialize() is no longer weak 2014-10-06 11:45:35 -06:00
Gregory Nutt
d914f3ceec Major structure of file system functions to better support asynchronous I/O. Respository should not be trusted until I have a chance to verify everything 2014-10-06 10:53:25 -06:00
Gregory Nutt
87eb1d47ed Fix some recently introduced typos, build problems, and warnings 2014-10-05 16:58:52 -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
da29907ac9 Update TODO list + cosmetic changes to clock_systimer.c 2014-10-03 11:21:35 -06:00
Gregory Nutt
8d43a6bdcd Fix build error with CONFIG_SYSTEM_TIME64 2014-10-03 10:20:46 -06:00
Gregory Nutt
71b574f26c Repartition some message queue logic: sched/mqueue should have all mqueue knowledge; fs/mqueue should deal only with inodes 2014-09-30 08:03:39 -06:00
Gregory Nutt
fcfe877e96 Cosmetic update to comments 2014-09-29 16:22:21 -06:00
Gregory Nutt
1f2cc9f4fe Complete re-implementation of mq_close 2014-09-29 15:33:34 -06:00
Gregory Nutt
584d0fe4ad Complete re-implementation of mq_open() 2014-09-29 14:59:31 -06:00
Gregory Nutt
9e975a217d Separate mqueue allocation logic from mq_open() and put it in sched/mqueue/mq_msgqalloc.c 2014-09-29 14:09:31 -06:00
Gregory Nutt
b0f80cc8db Move mq_open.c, mq_close.c, and mq_unlink.c from sched/mqueue to fs/mqueue 2014-09-29 13:35:32 -06:00
Gregory Nutt
e3fa34681b Convert mqueue structure for use in VFS as inode data; rename mqueue_inode_s; remove links, reference counts and name from mqueue structure. These will be replaced by VFS data. Remove g_msgqueues and mq_findnamed.c; these will be replace with VFS logic 2014-09-29 13:19:11 -06:00
Gregory Nutt
542e706d7d Fix a perverse case where vfork() is called from a pthread. Still not recommended 2014-09-29 12:21:34 -06:00
Gregory Nutt
1dc9768c1a Fix vfork(). Now that arguments are kept on the stack, the way that arguments are passed from parent to child in vfork() must change. This bug has always been present, but was not visible with the old strdup() way of passing arguments 2014-09-29 10:45:44 -06:00
Gregory Nutt
9a3f18db37 Fix missing header file for bug introduced yesterday 2014-09-29 07:48:45 -06:00
Gregory Nutt
8c958be5ab Semaphore initialization is now only required if priority inheritance is initialized 2014-09-29 06:50:48 -06:00
Gregory Nutt
650a0d0615 Completes VFS-based named semaphore implemetation. Still a little buggy 2014-09-28 15:58:56 -06:00
Gregory Nutt
30694f064c Add VFS-based sem_open() implementation 2014-09-28 14:35:17 -06:00
Gregory Nutt
a41c1de32c Add basic data structures that will allow us to move named semaphore support out of the OS and into the VFS (not complete). 2014-09-28 10:15:33 -06:00
Gregory Nutt
b33c2d9cef Move include/nuttx/mm.h to include/nuttx/mm/mm.h 2014-09-24 07:29:09 -06:00
Gregory Nutt
1863370672 Move include/nuttx/shm.h to include/nuttx/mm/shm.h 2014-09-24 07:05:02 -06:00
Gregory Nutt
835c91b03a Add support for a per-process virtual page allocator. This is a new member of the task_group_s structure. The allocaor must be initialized when a new user process is started and uninitialize when the process group is finally destroyed. It is used by shmat() and shmdt() to pick the virtual address onto which to map the shared physical memory. 2014-09-23 16:04:39 -06:00
Gregory Nutt
e326fcfef3 Fix some inconsistent field name in struct task_group_s: addrenv should be tg_addrenv. 2014-09-23 16:01:44 -06:00
Gregory Nutt
a73a3ef99f Add shared memory initializatin logic 2014-09-23 08:46:31 -06:00
Gregory Nutt
5d9276ed71 More changes so that the KNSH build survives the changes needed for the ELF build 2014-09-16 15:55:21 -06:00
Gregory Nutt
1ef758d67f A couple more changes for clean ELF build 2014-09-16 15:40:48 -06:00
Gregory Nutt
925fc9ad81 First round of changes to get the ELF configuration building again 2014-09-16 15:37:05 -06:00
Gregory Nutt
701719b2ca Don't release user stack in kernel build. Already destroyed with all of the address environment 2014-09-15 12:45:41 -06:00
Gregory Nutt
a5e30ac4a1 execv() is a basic system interface. It should not be in libc/ but rather in sched/task. Its symboltable helper logic also belongs in the kernel but belings in binfmt/ with the other symbol table logic 2014-09-15 10:16:20 -06:00
Gregory Nutt
da7a440b35 execv() is a basic system interface. It should not be in libc/ but rather in sched/task. Its symboltable helper logic also belongs in the kernel but belings in binfmt/ with the other symbol table logic 2014-09-15 10:15:19 -06:00
Gregory Nutt
3649dab9bd Initial integration of kernel stack (does not work) 2014-09-14 11:19:34 -06:00
Gregory Nutt
e12213592b Don't build task_create() or task_spawn() interfaces if there is an addres environment 2014-09-14 08:22:21 -06:00
Gregory Nutt
eae146d641 Kernel proxy thread should be a kernel thread, not a user task 2014-09-14 08:20:40 -06:00
Gregory Nutt
ba7d5acf94 Fix a couple more places where the wrong allocator is being used 2014-09-11 15:56:04 -06:00
Gregory Nutt
fc35e35165 When a privileged thread exits, we have to use the kernel alloctor to free memory; when an unprivileged thread exits, we don't have to do anything... heap memory will be cleaned up when the address environment is torn down 2014-09-11 09:00:10 -06:00
Gregory Nutt
44499ed46c Rename some functions and reshuffling some paramters 2014-09-11 08:37:06 -06:00
Gregory Nutt
81a4de4a4d Kconfig choice value needs a prompt 2014-09-11 07:18:33 -06:00
Gregory Nutt
4a20cd65c5 clock_gettime.c: Fix a cornercase bug in clock_gettime() 2014-09-10 17:10:54 -06:00
Gregory Nutt
c19659d7d2 Fixes to clock bias logic. Remove vestiges of g_tickbias; apply bias instead to g_basetime 2014-09-10 16:36:25 -06:00
Gregory Nutt
e953fb11cd A const storage class to to phthread parameters. From Freddie Chopin 2014-09-08 06:21:48 -06:00
Gregory Nutt
1822b86373 Fix some conditional compilation in kernel build mode. And, while we are touching this logic, make g_default_pthread_attr const. 2014-09-07 10:46:58 -06:00
Gregory Nutt
47d55c28dc Mostly cosmetic changes 2014-09-04 10:28:38 -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
b2a94b6f2b Fix more places where the user-mode allocator is used to allocate kernel thread resources -- before the user-mode allocator even exists 2014-09-03 14:58:24 -06:00
Gregory Nutt
fd6205b62a Group creation logic must use new group flag when allocating resources so that the privileges on the resource are set correctly 2014-09-03 13:49:35 -06:00
Gregory Nutt
c81093913a IDLE TCB setup needs to indicate the the IDLE thread is a privileged, kernel thread 2014-09-03 13:47:11 -06:00
Gregory Nutt
b4438e44c5 Restructuring of build to allow use of use-space allocators by kernel logic in the kernel build. 2014-09-02 11:22:09 -06:00
Gregory Nutt
a5af2568eb sbrk() need to initialized the memory manager on the first call 2014-09-02 08:05:11 -06:00
Gregory Nutt
0e3c182e3b Fix error in initialize of IDLE TCB due to last change. The argument list is no long in the TCB, but in the stack. But not for the IDLE task. It needs its own mini-argv[] list so that it looks more like other threads. 2014-09-01 16:49:42 -06:00
Gregory Nutt
64ab35b399 There used to be two ways to pass parameters to new tasks, depending upon the configuration: Either (1) argv[] as created as an array with each string strdup'ed. Or (1) argv[] array and strings were created on the stack before the new task was started. Now, there is only one way, way (1). Way (2) might be slightly more compact, but this is not worth carry the complexity of two different ways of doing the same thing. 2014-09-01 15:39:34 -06:00
Gregory Nutt
23147c40a5 Remove final traces of the 8015 from the NuttX source tree 2014-09-01 13:21:15 -06:00
Gregory Nutt
205260d5e2 Reanem kzalloc to kmm_zalloc for consistency 2014-08-31 17:34:44 -06:00
Gregory Nutt
1780810d3d Rename kmalloc to kmm_malloc for consistency 2014-08-31 17:26:36 -06:00
Gregory Nutt
54fa3b0b59 Rename kfree to kmm_free for consistency with other naming conventions 2014-08-31 17:04:02 -06:00
Gregory Nutt
9aca0c1c84 Rename kumalloc to kumm_malloc and kuzalloc to kumm_zalloc for consistency with other naming 2014-08-31 16:24:24 -06:00
Gregory Nutt
9ad7dae4c1 Rename kufree to kumm_free for consistency with other naming 2014-08-31 16:15:11 -06:00
Gregory Nutt
9cd1ddada4 Rename kmemalign to kmm_memalign and krealloc to kmm_realooc for consistency with other naming 2014-08-31 15:27:37 -06:00
Gregory Nutt
2904fb0420 Clean up some kernel build heap allocation issues. The Cortex-A kernel build now compiles without errors (but cannot link until brk() and sbrk() are implemented). 2014-08-31 12:50:05 -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
fc7bd31e07 last change alters semantics of __HAVE_KERNEL_GLOBALS 2014-08-30 14:44:48 -06:00
Gregory Nutt
2029236ed0 Back out and replace recent kludges for errno and clock_systimer. There is a cleaner way 2014-08-30 14:26:56 -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
e3ff0689bb Rename CONFIG_NUTTX_KERNEL to CONFIG_BUILD_PROTECTED; Partially integrate new CONFIG_BUILD_KERNEL 2014-08-29 14:47:22 -06:00
Gregory Nutt
0ab1b0de25 nuttx/sched: Remove explicit references to errno. That is a problem from within the kernel for certain configurations 2014-08-28 17:00:24 -06:00
Gregory Nutt
9ab67dce75 In some configurations, g_system_tmer must be extern'ed as a private variable 2014-08-28 17:00:03 -06:00
Gregory Nutt
45f3328247 Fix an error introduced into ALL implmentations of interrupt dispatch logic 2014-08-28 08:41:57 -06:00
Gregory Nutt
d35723749b Minor address environment clean-up. Cannot generate debug contexts in certain contexts 2014-08-27 14:22:00 -06:00
Gregory Nutt
ad53cabf34 ADDRENV: Use a group flag to determine if there is an address environment (instead of the thread type) 2014-08-27 09:37:28 -06:00
Gregory Nutt
582800a04d Add group_addrenv() which will be called during context switches in order to change address environments. Not yet hooked in 2014-08-26 14:57:05 -06:00
Gregory Nutt
af22f273d3 Add group_addrenv() which will be called during context switches in order to change address environments. Not yet hooked in 2014-08-26 14:54:39 -06:00
Gregory Nutt
1725946447 Misc changed to get the SAMA5 ELF configuration with address environments working 2014-08-25 13:28:13 -06:00
Gregory Nutt
e1799b0423 Cortex-A/SAMA5 address environment support is code complete (untested) 2014-08-25 11:18:32 -06:00
Gregory Nutt
1624e2fbcf Change CONFIG_ADDRENV to CONFIG_ARCH_ADDRENV; change how it is selected -- the architecure must first declare support 2014-08-24 06:42:11 -06:00
Gregory Nutt
e79d6e3c8b A few fixes for compilation errors due to recent address environment fixes 2014-08-22 15:55:00 -06:00
Gregory Nutt
4e699b00de Need to release the addess environment when the task group is released 2014-08-22 14:49:05 -06:00