74189d84e2
Cancellation points: Fix some backward logic in conditional compilation.
2017-02-02 06:42:41 -06:00
e0f199e42e
Missing semicolon in previous commit
2017-01-31 14:18:20 -06:00
154873a3d0
Timer logic: Add private function prototypes to eliminate a warning; Functions should not be inline because the may recurse.
2017-01-31 13:45:22 -06:00
e30b2617e3
Shared Libs: Implement module based shared libraries for the PROTECTED mode build
2017-01-29 13:03:53 -06:00
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
86bdd0a4c7
Modules: Move last of many C files from sched/module to libc/modlib
2017-01-29 11:54:54 -06:00
6da66fb5c8
Modules: Move next five of many C files from sched/module to libc/modlib
2017-01-29 11:17:29 -06:00
5e94dd22bb
Modules: Move first five of many C files from sched/module to libc/modlib
2017-01-29 10:05:15 -06:00
00e46b5966
Move gnu-elf.ld from sched/module to libc/modlib. Update paths in Make.defs files to account for new location of file
2017-01-29 09:03:01 -06:00
2717e781f0
libc/modlib: Add build a configuration logic for a shared module library.
2017-01-29 08:55:27 -06:00
b79ca9dcdd
Modules: Move sched/module/module.h to include/nuttx/lib/modlib.h
2017-01-29 08:24:42 -06:00
68a7110195
sched/modules: Add support for dependencies between modules.
2017-01-27 11:43:27 -06:00
6a4880f415
SMP: Fix timer related issues: Round robin and sporadic scheduling were only being performed for tasks running on the CPU that processes the system timer interrupt. Similary, CPU load measurements were only be processed for running on the CPU that receives the sampling interrupt.
2017-01-23 12:14:01 -06:00
4574a1ca42
Modules: Extend the module interface so that we can access symbols exported by the module.
2017-01-22 14:26:22 -06:00
d90e66a024
Kernel Modules: Module initializer may now return a symbol table (not yet used for anything)
2017-01-22 11:37:49 -06:00
1823c78663
Update some comments
2017-01-22 10:17:51 -06:00
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
1e38884088
Fix a compile error: in sched_cpuload.c:Line136, the variables ts and secs are not defined if CONFIG_CPULOAD_ONESHOT_ENTROPY = 0. However, these variables are used regardless of CONFIG_CPULOAD_ONESHOT_ENTROPY at lines~180:onwards.
2017-01-22 06:48:11 -06:00
edd9186540
ELF: Move ARMv7-A and ARMv7-R versions of ELF relocation logic to libc/machine
2017-01-21 14:40:26 -06:00
fba247b119
Update some comments
2017-01-13 16:32:09 -06:00
99bb2dda5d
i.MX6: Corrects behavior of last SMP patch with i.MX6
2017-01-13 12:29:57 -06:00
a51b5b7e17
Add REVISIT to comments.
2017-01-13 09:40:17 -06:00
37e6e6a52e
Eliminate a warning
2017-01-13 06:56:13 -06:00
9ce4022096
SMP: Fix an error in critical section logic when performing a context switch from an interrupt handler. The g_cpu_irqset bit was not being set for the CPU so other CPUs did not know about the critical section.
2017-01-13 06:48:10 -06:00
acbfa47f70
sched_note: Fix spinlock instrumentation
2017-01-12 08:04:28 -06:00
d5b1ca14e2
Update README and some comments.
2017-01-02 13:54:07 -06:00
04557a1198
Eliminate a warning
2016-12-31 14:47:32 -06:00
8f716a386b
SMP: Use irq_cpu_locked() in sched_removereadytorun() and sched_setpriority()
2016-12-29 10:40:58 -06:00
af92a67fc5
SMP: Use irq_cpu_locked() in sched_mergepending()
2016-12-29 08:53:31 -06:00
e7d2b9f0e8
SMP: Move sharable function to common file as irq_cpu_locked(). Use irq_cpu_locked() in sched_unlock()
2016-12-29 08:17:10 -06:00
96394f339e
SMP: Fix a gap where we may try to make modifications to the task lists without being in a critical sections. That permits concurrent access to the tasks lists and many subtle problems. This fix just remains in the critical section throughout the operation (and possible until the task is restore in the event of a context switch). Makes a big difference in stability
2016-12-28 13:58:24 -06:00
88da65ad8a
sched_cpulocked: Avoid use of spinlock. That has been reported to cause a deadlock.
2016-12-28 12:10:17 -06:00
72490f84e6
SMP: Make checks for CPU lock set more robust. There are certains conditions early in initialization on during interrupt handling where things need to be done a little differently.
2016-12-28 10:21:05 -06:00
cfb876263a
SMP: There were certain conditions that we must avoid by preventing releasing the pending tasks while withn a critical section. But this logic was incomplete; there was no logic to prevent other CPUs from adding new, running tasks while on CPU is in a critical section.
...
This commit corrects this. This is matching logic in sched_addreadytorun to avoid starting new tasks within the critical section (unless the CPU is the holder of the lock). The holder of the IRQ lock must be permitted to do whatever it needs to do.
2016-12-27 08:49:07 -06:00
e0f3f4ae19
Update some coments
2016-12-26 16:12:27 -06:00
849a5dc2a9
SMP: Enforce this rule: Tasks which are normally restored when sched_unlock() is called must remain pending (1) if we are in a critical section, i.e., g_cpu_irqlock is locked , or (2) other CPUs still have pre-emption disabled, i.e., g_cpu_schedlock is locked. In those cases, the release of the pending tasks must be deferred until those conditions are met.
2016-12-26 08:15:02 -06:00
d45a81d643
Revert "SMP: Fix a error introduced in 36b676eea6 and fully decouple disabling of pre-emption from critical sections."
...
This reverts commit 9aedf1bdec
2016-12-26 07:48:22 -06:00
9aedf1bdec
SMP: Fix a error introduced in 36b676eea6 and fully decouple disabling of pre-emption from critical sections.
2016-12-25 06:54:43 -06:00
efb86382c3
SMP: Back out deferred IRQ locking. This was accidentally merged into master and it looks like it is going to be more work than I thought to get it working again. Changes will go to the irqlock branch.
2016-12-24 19:53:37 -06:00
3af6b2a9a6
Update a comment
2016-12-24 19:01:07 -06:00
f55bad863b
SMP: Fix logic error in last change: Deferred restoration of IRQ lock only applies if the context switch was on this CPU.
2016-12-24 18:52:58 -06:00
36b676eea6
SMP sched_unlock: Should merging depend on g_cpu_irqlock or not? Let's at least be consistent. And don't use irqcount; use g_cpu_irqlock.
2016-12-24 13:45:11 -06:00
d75a7643d0
Fix a trivial typo
2016-12-23 13:01:20 -06:00
e6fff09ef8
Implement deferred IRQ locking. So far only form ARMv7-M.
2016-12-23 07:55:41 -06:00
d648f9c8b4
Add task_testcancel()
2016-12-10 16:34:14 -06:00
f132960789
Add task_setcanceltype()
2016-12-10 16:06:14 -06:00
5fb207eb36
Add task_setcancelstate()
2016-12-10 15:16:46 -06:00
698597a838
task_delete() now obeys all cancellation point semantics.
2016-12-10 14:39:19 -06:00
6997cda1b5
Grrr... cloned typos!
2016-12-10 09:45:55 -06:00
842ec7e612
ifdef out some non-reachable code
2016-12-10 09:43:04 -06:00
Gregory Nutt