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2024-01-16cpukit: Remove or use unused variable assignmentsKinsey Moore1-1/+0
2023-10-13cpukit: Remove unused includesKinsey Moore10-11/+0
2023-05-20Update company nameSebastian Huber34-34/+34
The embedded brains GmbH & Co. KG is the legal successor of embedded brains GmbH.
2022-09-06pthread_atfork(): Change to behavior from FACE Technical StandardJoel Sherrill1-8/+5
Closes #4713.
2022-08-10Add support for CONFIGURE_POSIX_TIMERS_FACE_BEHAVIORJoel Sherrill1-2/+29
This adds the configure option CONFIGURE_POSIX_TIMERS_FACE_BEHAVIOR which allows the application to choose whether to have the POSIX timer_create() function follow the behavior defined by POSIX or the FACE Technical Standard. Updates #4691.
2022-08-05posix: Avoid dead code in clock_nanosleep()Sebastian Huber1-5/+2
This issue was reported by Coverity Scan for RTEMS: CID 1507760: Control flow issues (DEADCODE) Closes #4690.
2022-08-04posix: Fix relative CLOCK_REALTIME sleepSebastian Huber1-0/+9
A relative CLOCK_REALTIME time out shall not be affected by CLOCK_REALTIME changes through clock_settime(). Since our CLOCK_REALTIME is basically just CLOCK_MONOTONIC plus an offset, we can simply use the CLOCK_MONOTONIC watchdog for relative CLOCK_REALTIME time outs. Update #4690.
2022-07-28score: Use PTHREAD_CANCELED for _Thread_Cancel()Sebastian Huber1-1/+1
The rtems_task_delete() directive is basically just a combined pthread_cancel() and pthread_join(). In addition, it removes the PTHREAD_DETACHED state. The exit value returned by pthread_join() of threads cancelled by rtems_task_delete() should reflect this by getting a PTHREAD_CANCELED value instead of NULL which could be a normal exit value. Close #4680.
2022-07-28score: Use priority inheritance for thread joinSebastian Huber2-36/+13
Threads may join the thread termination of another thread using the pthread_join() or rtems_task_delete() directives. The thread cancel operation used a special case priority boosting mechanism implemented by _Thread_Raise_real_priority(). The problem was that this approach * is not transitive, * does not account for priority adjustments of the calling task while waiting for the join, * does not support clustered scheduling, and * does not detect deadlocks. All these problems are fixed by using a priority inheritance thread queue for the join operation. Close #4679.
2022-06-15cpukit: Change _COMPILING_NEWLIB to _LIBC for helper functions declsChris Johns1-2/+2
Updates #4662
2022-02-28posix/src/_execve.c: Change license to BSD-2Joel Sherrill1-3/+22
Updates #3053.
2022-02-28cpukit/posix/src/[p-z]*.c: Change license to BSD-2Joel Sherrill125-375/+2750
Updates #3053.
2022-02-28cpukit/posix/src/[a-o]*.c: Change license to BSD-2Joel Sherrill86-258/+1892
Updates #3053.
2022-02-21kern_ntptime.c: Port to RTEMSSebastian Huber1-93/+0
Remove previous adjtime() implementation. Update #2348.
2021-11-23score: Properly continue the thread during restartSebastian Huber1-11/+2
The _Thread_queue_Extract() does not deal with potential priority updates and the SMP locking protocol handling. Use _Thread_queue_Continue(). For the POSIX signals processing this is currently probably unnecessary, however, the use case is similar to the restart so use the same appoach. Close #4546.
2021-11-23score: Add _Thread_MP_Extract_proxy()Sebastian Huber1-5/+11
Remove _Thread_queue_Extract_with_proxy() and move the proxy extraction to _Thread_MP_Extract_proxy(). Move similar code blocks of the previous caller of _Thread_queue_Extract_with_proxy() to helper functions. Update #4546.
2021-11-15score: Introduce CPU budget operationsSebastian Huber5-49/+85
This patch set replaces the CPU budget algorithm enumeration with a set of CPU budget operations which implement a particular CPU budget algorithm. This helps to hide the CPU budget algorithm implementation details from the general thread handling. The CPU budget callouts are turned into CPU budget operations. This slightly reduces the size of the thread control block. All schedulers used the default scheduler tick implementation. The tick scheduler operation is removed and the CPU budget operations are directly used in _Watchdog_Tick() if the executing thread uses a CPU budget algorithm. This is performance improvement for all threads which do not use a CPU budget algorithm (default behaviour).
2021-09-06score: Add _TOD_Is_valid_new_time_of_day()Sebastian Huber1-0/+5
Move the TOD validation to the callers of _TOD_Set(). This avoids dead code in case only rtems_clock_set() is used in an application because rtems_clock_set() always calls _TOD_Set() with a valid time of day.
2021-09-06score: Return status in _TOD_Adjust()Sebastian Huber1-1/+5
2021-09-01score: Fix priority discipline handlingSebastian Huber2-27/+18
The priority queues in clustered scheduling configurations use a per scheduler priority queue rotation to ensure FIFO fairness across schedulers. This mechanism is implemented in the thread queue surrender operation. Unfortunately some semaphore and message queue directives used wrongly the thread queue extract operation. Fix this through the use of _Thread_queue_Surrender(). Update #4358.
2021-08-18confstr() support for RTEMSEshan dhawan1-0/+127
Closes #3373 confstr() style update Signed-off-by: Eshan Dhawan <eshandhawan51@gmail.com>
2021-08-12score: Replace priority prepend it with an enumSebastian Huber2-2/+2
Use the new Priority_Group_order enum instead of a boolean to indicated if a priority should be inserted as the first or last node into its priority group. This makes the code more expressive. It is also a bit more efficient since a branch in _Scheduler_Node_set_priority() is avoided and a simple bitwise or operation can be used.
2021-08-11Test needed for timer_create with CLOCK_MONOTONCZacchaeus Leung2-19/+32
the timer_create() method can use CLOCK_MONOTONIC but there was no test for this. Also it implements the functionality to create a CLOCK_MONOTONIC timer and gettime() . Closes #3888
2021-06-10score: Fix initialization of thread queue contextSebastian Huber4-4/+4
Set Thread_queue_Context::timeout_absolute in _Thread_queue_Context_set_timeout_argument() to avoid using it uninitialized. The bug was introduced by a89ecaa1a94d49ddae7753d6b83923e9d2a00486.
2021-06-09sysconf: Remove sysconf(515)Ryan Long1-4/+0
GCC originally needed this 20 years ago. No longer needed, so it is being removed. Closes #4391
2021-05-26posix: Allow pthread_cancel() from within ISRsSebastian Huber1-9/+4
Close #4413.
2021-05-26score: Simplify calling _Thread_Exit()Sebastian Huber2-16/+7
Move common code into _Thread_Exit(). This enables a tail call optimization in most cases.
2021-05-18score: Simplify thread queue timeout handlingSebastian Huber5-27/+28
Add Thread_queue_Context::timeout_absolute to specify an absolute or relative timeout. This avoid having to get the current time twice for timeouts relative to the current time. It moves also functionality to common code.
2021-05-18posix: Fix use of clock for relative timesSebastian Huber1-13/+18
Close #4426.
2021-05-17posix: Use RTEMS_POSIX_API in clock_nanosleep()Sebastian Huber1-0/+5
It is only possible to get interrupted by a POSIX signal if RTEMS_POSIX_API is defined.
2021-05-17posix: Move clock_nanosleep()Sebastian Huber2-91/+116
Move clock_nanosleep() to a separate file to avoid a dependency on errno which pulls in the Newlib reentrancy support. This is an issue since most parts which are pulled in cannot be garbage collected by the linker due to the system initialization linker set.
2021-05-11score: Rename _Stack_Free_nothing()Sebastian Huber1-1/+1
Rename _Stack_Free_nothing() in _Objects_Free_nothing() to make it reusable for the message queue buffers. Update #4007.
2021-05-02score: Add _Thread_Dispatch_direct_no_return()Sebastian Huber1-1/+1
The __builtin_unreachable() cannot be used with current GCC versions to tell the compiler that a function does not return to the caller, see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99151 Add a no return variant of _Thread_Dispatch_direct() to avoid generation of dead code.
2021-04-30Use alias for rtems_task_self() and pthread_self()Sebastian Huber1-32/+0
This may reduce the code size a bit.
2021-04-27Return status code for _Thread_Start()Sebastian Huber1-3/+2
This avoids having conditional statements to get the API-specific status code.
2021-04-27Return status code for _Scheduler_Set_affinity()Sebastian Huber2-5/+6
This avoids having conditional statements to get the API-specific status code.
2021-04-27Simplify get affinitiy directivesSebastian Huber1-3/+0
There is no need to disable thread dispatching to get the affinity of a task.
2021-04-27Return status code for _Scheduler_Get_affinity()Sebastian Huber2-6/+8
This avoids having conditional statements to get the API-specific status code.
2021-04-20Remove superfluous <rtems/score/wkspace.h> includesSebastian Huber4-4/+0
2021-03-16score: Add Thread_Configuration::cpu_time_budgetSebastian Huber3-40/+30
Move the CPU time budget to the thread configuration. This simplifies _Thread_Initialize().
2021-02-26score: Fix thread initializationSebastian Huber1-18/+21
Close the thread object if a thread create extension fails. Also call the delete extension to avoid resource leaks in early extensions if a late extension fails. Close #4270.
2021-02-20posix: Remove superfluous checkSebastian Huber1-6/+0
The api pointer is never NULL. Update #4244.
2021-02-20score: Change thread action lockingSebastian Huber1-0/+2
Require that the corresponding lock is acquired before the action handler returns. This helps to avoid recursion in the signal processing. Update #4244.
2020-10-19posix: Fix pthread_spin_unlock()Sebastian Huber1-1/+1
Prevent a call to _SMP_lock_Stats_register_or_max_section_time(). This fixes a thread stack corruption in case RTEMS_PROFILING and RTEMS_SMP is enabled. Close #4157.
2020-09-28rtems: Add rtems_message_queue_construct()Sebastian Huber1-1/+3
In contrast to message queues created by rtems_message_queue_create(), the message queues constructed by this directive use a user-provided message buffer storage area. Add RTEMS_MESSAGE_QUEUE_BUFFER() to define a message buffer type for message buffer storage areas. Update #4007.
2020-09-28score: Improve _CORE_message_queue_Initialize()Sebastian Huber1-8/+9
Return a status code and differentiate between error conditions. Update #4007.
2020-08-31score: Add stack free handler to TCBSebastian Huber1-1/+3
This avoids a dependency to the stack free function in the thread destruction. Update #3959.
2020-08-11posix: Only check shm_unlink obj_err if necessaryKinsey Moore1-22/+23
In the nominal case checked by spsysinit01, obj_err is unmodified if _POSIX_Shm_Get_by_name returns non-NULL. In the case of shm_unlink, this means an uninitialized value is passed into the switch and it appears tests using it were passing by virtue of the stack having the right value on it in most cases. This now checks obj_err only if _POSIX_Shm_Get_by_name returns NULL. Close #4016
2020-05-12posix: Get real priority in pthread_getattr_np()Sebastian Huber1-4/+6
This is in line with pthread_setschedparam() and pthread_getschedparam(). Update #2514.
2020-04-28doxygen: Switch @brief and @ingroupSebastian Huber165-165/+330
This order change fixes the Latex documentation build via Doxygen.
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