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* score: Improve C/C++ standard compatibilitySebastian Huber2024-04-091-1/+1
| | | | | | The processor mask implementation uses flsl() from <strings.h> which is only BSD visible. Move the implementation to a separate header file to hide it from the API level. This fixes build errors with GCC 14.
* Mark parameters as intentionally unusedSebastian Huber2024-03-227-0/+10
| | | | | | | | The parameters are unused due to API constraints. The functions are used through function pointers. Alternative implementations may use the parameters. Update #4862.
* score: Include missing header fileSebastian Huber2024-03-201-0/+2
| | | | | | This fixes: heap.c:268:3: warning: implicit declaration of function 'memset'
* base64: Move base64 encoding supportSebastian Huber2024-02-161-2/+2
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* cpukit/score: Avoid overflow in multiplicationKinsey Moore2024-01-171-1/+1
| | | | | Change extend_count to uint32_t from uint16_t to avoid a possible premature integer overflow when it is later used for multiplication.
* cpukit: Remove unused includesKinsey Moore2023-10-134-7/+0
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* rtems: rtems_configuration_get_interrupt_stack_size()Sebastian Huber2023-09-151-0/+2
| | | | | | | | | Fix rtems_configuration_get_interrupt_stack_size() for some code models. The _ISR_Stack_size symbol has an arbitrary absolute address and may not be representable in the code model used by the compiler. Update #4953.
* score: Fix TLS support for some code modelsSebastian Huber2023-09-151-5/+38
| | | | | | | | Store symbols with an arbitrary absolute address such as _TLS_Size, _TLS_Alignment, _TLS_Data_size, and _TLS_BSS_size in an object to avoid issues with some code models. Update #4953.
* score: Assert scheduler index validitySebastian Huber2023-07-281-0/+1
| | | | Update #4844.
* score: Move <rtems/score/gcov.h>Sebastian Huber2023-07-283-243/+0
| | | | | Move <rtems/score/gcov.h> to <rtems/test-gcov.h>. These functions do not belong to an super core service.
* score: Move formatted I/O functionsSebastian Huber2023-07-284-542/+1
| | | | These functions do not belong to an super core service.
* score: Move _IO_Relax() to new <rtems/dev/io.h>Sebastian Huber2023-07-241-53/+0
| | | | This function is not a super core service.
* Revert accidentally committed "Remove unused _IO_Relax"Joel Sherrill2023-07-031-0/+53
| | | | | | Sebastian has agreed to move this out of score. I should have removed this patch from my tree but accidentally committed it with another patch.
* Remove unused _IO_RelaxJoel Sherrill2023-07-031-53/+0
| | | | The only use was in a test.
* score/src/pheap*: Remove unreferenced methodsJoel Sherrill2023-05-263-168/+0
| | | | | | | | * _Protected_heap_Get_block_size * _Protected_heap_Iterate * _Protected_heap_Resize_block Closes #4909.
* Update company nameSebastian Huber2023-05-20124-124/+124
| | | | | The embedded brains GmbH & Co. KG is the legal successor of embedded brains GmbH.
* _TOD_Adjust method is unused. Remove it.Joel Sherrill2023-05-161-73/+0
| | | | | | | Use of this method was likely eliminated during the rework to use FreeBSD bintime/sbintime. Close #4905.
* score: Avoid cyclic header file dependenciesSebastian Huber2023-04-251-0/+49
| | | | | | | | | | | | | There was a cyclic dependency: For RTEMS_STATIC_ANALYSIS we needed basedefs.h in assert.h. For RTEMS_UNREACHABLE() we needed _Assert() from assert.h in basedefs.h. Fix this by introducing _Debug_Unreachable() in basedefs.h. Add RTEMS_FUNCTION_NAME to basedefs.h and use it in basedefs.h and assert.h. Close #4900.
* pps: Round to closest integer in pps_event()Sebastian Huber2023-03-071-1/+3
| | | | | | | | | | | | | | The comment above bintime2timespec() says: When converting between timestamps on parallel timescales of differing resolutions it is historical and scientific practice to round down. However, the delta_nsec value is a time difference and not a timestamp. Also the rounding errors accumulate in the frequency accumulator, see hardpps(). So, rounding to the closest integer is probably slightly better. Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/604
* pps: Simplify the nsec calculation in pps_event()Sebastian Huber2023-03-072-19/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Let A be the current calculation of the frequency accumulator (pps_fcount) update in pps_event() scale = (uint64_t)1 << 63; scale /= captc->tc_frequency; scale *= 2; bt.sec = 0; bt.frac = 0; bintime_addx(&bt, scale * tcount); bintime2timespec(&bt, &ts); hardpps(tsp, ts.tv_nsec + 1000000000 * ts.tv_sec); and hardpps(..., delta_nsec): u_nsec = delta_nsec; if (u_nsec > (NANOSECOND >> 1)) u_nsec -= NANOSECOND; else if (u_nsec < -(NANOSECOND >> 1)) u_nsec += NANOSECOND; pps_fcount += u_nsec; This change introduces a new calculation which is slightly simpler and more straight forward. Name it B. Consider the following sample values with a tcount of 2000000100 and a tc_frequency of 2000000000 (2GHz). For A, the scale is 9223372036. Then scale * tcount is 18446744994337203600 which is larger than UINT64_MAX (= 18446744073709551615). The result is 920627651984 == 18446744994337203600 % UINT64_MAX. Since all operands are unsigned the result is well defined through modulo arithmetic. The result of bintime2timespec(&bt, &ts) is 49. This is equal to the correct result 1000000049 % NANOSECOND. In hardpps(), both conditional statements are not executed and pps_fcount is incremented by 49. For the new calculation B, we have 1000000000 * tcount is 2000000100000000000 which is less than UINT64_MAX. This yields after the division with tc_frequency the correct result of 1000000050 for delta_nsec. In hardpps(), the first conditional statement is executed and pps_fcount is incremented by 50. This shows that both methods yield roughly the same results. However, method B is easier to understand and requires fewer conditional statements. Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/604
* pps: Directly assign the timestamps in pps_event()Sebastian Huber2023-03-071-4/+2
| | | | | Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/604
* pps: Move pcount assignment in pps_event()Sebastian Huber2023-03-071-4/+4
| | | | | | | Move the pseq increment. This makes it possible to reuse registers earlier. Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/604
* pps: Simplify capture and event processingSebastian Huber2023-03-071-21/+21
| | | | | | | | | | | | | | Use local variables for the captured timehand and timecounter in pps_event(). This fixes a potential issue in the nsec preparation for hardpps(). Here the timecounter was accessed through the captured timehand after the generation was checked. Make a snapshot of the relevent timehand values early in pps_event(). Check the timehand generation only once during the capture and event processing. Use atomic_thread_fence_acq() similar to the other readers. Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/604
* pps: Load timecounter once in pps_capture()Sebastian Huber2023-03-071-1/+3
| | | | | | | | This ensures that the timecounter and the tc_get_timecount handler belong together. Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/604
* ntptime: ansifyMateusz Guzik2023-03-071-2/+1
| | | | Sponsored by: Rubicon Communications, LLC ("Netgate")
* Clarify hardpps() parameter name and commentSebastian Huber2023-03-071-8/+5
| | | | | | | | | | | | Since 32c203577a5e by phk in 1999 (Make even more of the PPSAPI implementations generic), the "nsec" parameter of hardpps() is a time difference and no longer a time point. Change the name to "delta_nsec" and adjust the comment. Remove comment about a clock tick adjustment which is no longer in the code. Pull Request: https://github.com/freebsd/freebsd-src/pull/640 Reviewed by: imp
* set_cputicker: use a boolMitchell Horne2023-03-071-3/+3
| | | | | | | | | | | The third argument to this function indicates whether the supplied ticker is fixed or variable, i.e. requiring calibration. Give this argument a type and name that better conveys this purpose. Reviewed by: kib, markj MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D35459
* kern_tc.c/cputick2usec()firk2023-03-071-9/+3
| | | | | | | | | | | | | | | | | | (which is used to calculate cputime from cpu ticks) has some imprecision and, worse, huge timestep (about 20 minutes on 4GHz CPU) near 53.4 days of elapsed time. kern_time.c/cputick2timespec() (it is used for clock_gettime() for querying process or thread consumed cpu time) Uses cputick2usec() and then needlessly converting usec to nsec, obviously losing precision even with fixed cputick2usec(). kern_time.c/kern_clock_getres() uses some weird (anyway wrong) formula for getting cputick resolution. PR: 262215 Reviewed by: gnn Differential Revision: https://reviews.freebsd.org/D34558
* score: Replace goto with a breakSebastian Huber2023-02-101-6/+11
| | | | | | | The goto label was directly after the loop, so we can replace the goto with a break. Close #4847.
* score: Help static analysis in thread initSebastian Huber2023-01-281-2/+5
| | | | | | | | Add an assert to _Thread_Initialize_scheduler_and_wait_nodes() which may help a static analyzer. Use a do/while loop since we have at least one scheduler. Update #4832.
* score: Remove unused return valueSebastian Huber2023-01-241-6/+1
| | | | | | | Several SMP message processing functions returned a value. This value was always unused. Close #4822.
* score: Clarify code blockSebastian Huber2023-01-241-1/+1
| | | | | | Do not use a chained assignment for code clarity. Close #4818.
* score: INTERNAL_ERROR_IDLE_THREAD_STACK_TOO_SMALLSebastian Huber2022-10-141-0/+4
| | | | | | | Ensure that the IDLE storage allocator did allocate a suffiently large area. Update #3835. Update #4524.
* config: Add CONFIGURE_IDLE_TASK_STORAGE_SIZESebastian Huber2022-10-143-31/+95
| | | | | | | | | | | | By default, allocate the IDLE task storage areas from the RTEMS Workspace. This avoids having to estimate the thread-local storage size in the default configuration. Add the application configuration option CONFIGURE_IDLE_TASK_STORAGE_SIZE to request a static allocation of the task storage area for IDLE tasks. Update #3835. Update #4524.
* score: INTERNAL_ERROR_IDLE_THREAD_CREATE_FAILEDSebastian Huber2022-10-141-3/+9
| | | | | | Add the INTERNAL_ERROR_IDLE_THREAD_CREATE_FAILED fatal error in case the creation of an idle thread fails. This may happen due to a failing create extension provided by the application.
* score: Add CPU_THREAD_LOCAL_STORAGE_VARIANTSebastian Huber2022-10-142-19/+31
| | | | Update #3835.
* config: Changeable size for IDLE stack allocatorSebastian Huber2022-10-142-12/+11
| | | | | | | | Allow the IDLE stack allocator to change the stack size. This can be used by applications with a very dynamic thread-local storage size to adjust the thread storage area of the IDLE tasks dynamically. Update #4524.
* score: Require power of two CPU_STACK_MINIMUM_SIZESebastian Huber2022-10-141-1/+6
| | | | | For most CPU ports this was already the case. This makes it possible to use the size as an object alignment using RTEMS_ALIGNED().
* score: Prevent an out of bounds warningSebastian Huber2022-09-121-2/+7
| | | | Update #4702.
* score: Remove _CPU_Counter_difference()Sebastian Huber2022-09-091-4/+1
| | | | | | | All CPU ports used the same _CPU_Counter_difference() implementation. Remove this CPU port interface and mandate a monotonically increasing CPU counter. Close #3456.
* score: Use PTHREAD_CANCELED for _Thread_Cancel()Sebastian Huber2022-07-281-5/+5
| | | | | | | | | | 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.
* score: Use priority inheritance for thread joinSebastian Huber2022-07-282-68/+59
| | | | | | | | | | | | | | | | | | | | | 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.
* score: Remove PRIORITY_PSEUDO_ISR thread prioritySebastian Huber2022-07-2616-69/+43
| | | | | | | | | | | | | | | The uniprocessor schedulers had some special case logic for the PRIORITY_PSEUDO_ISR priority. Tasks with a priority of PRIORITY_PSEUDO_ISR were allowed to preempt a not preemptible task. If other higher priority task are made ready while a PRIORITY_PSEUDO_ISR task preempts a not preemptible task, then the other tasks run before the not preemptible task. This made the RTEMS_NO_PREEMPT mode ineffective. Remove the PRIORITY_PSEUDO_ISR special case logic. This simplifies the uniprocessor schedulers. Move the uniprocessor-specific scheduler support to the new header file <rtems/score/scheduleruniimpl.h>. Close #2365.
* score: Fix unlimited objects supportSebastian Huber2022-07-181-5/+7
| | | | | | | | Commit 21275b58a5a69c3c838082ffc8a7a3641f32ea9a ("score: Static Objects_Information initialization") introduced an off-by-one error in the maintenance of inactive objects. Close #4677.
* score: Fix _Objects_Active_count()Sebastian Huber2022-07-181-5/+13
| | | | | | | With unlimited objects the object maximum may be larger than the sum of active and inactive objects. Update #4677.
* score: Extend memory dirty/zero actionsSebastian Huber2022-07-153-2/+61
| | | | | | Dirty or zero also the part of the .noinit section used by RTEMS. Close #4678.
* score: Use RTEMS_SMP in _Thread_Create_idle()Sebastian Huber2022-07-071-1/+5
| | | | | | Conditional expressions with inline functions are not optimized away if optimization is disabled. Avoid such expressions to prevent dead branches.
* score: Conditional _Thread_Priority_replace()Sebastian Huber2022-07-071-0/+2
| | | | This function is only used in SMP configurations.
* score: Add _CPU_Use_thread_local_storage()Sebastian Huber2022-07-041-0/+5
| | | | | | | | | | | | At some point during system initialization, the idle threads are created. Afterwards, the boot processor basically executes within the context of an idle thread with thread dispatching disabled. On some architectures, the thread-local storage area of the associated thread must be set in dedicated processor registers. Add the new CPU port function to do this: void _CPU_Use_thread_local_storage( const Context_Control *context ) Close #4672.
* gcov: Add functions to dump the gcov informationSebastian Huber2022-07-043-0/+243
| | | | Update #4670.
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