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* cpukit/libdl: Add support for AArch64Ryan Long2022-07-291-0/+256
| | | | | | rtl-mdreloc-aarch64.c and elf_machdep.h came from NetBSD. Updates #4682
* 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.
* Use __asm__ for standard C compatibilitySebastian Huber2022-07-271-5/+5
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* 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.
* aarch64: Use page table level 0Kinsey Moore2022-07-211-1/+0
| | | | | | | | | This alters the AArch64 page table generation and mapping code and MMU configuration to use page table level 0 in addition to levels 1, 2, and 3. This allows the mapping of up to 48 bits of memory space and is the maximum that can be mapped without relying on additional processor extensions. Mappings are restricted based on the number of physical address bits that the CPU supports.
* 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.
* cpukit/aarch64: Remove _CPU_ISR_install_vectorKinsey Moore2022-07-052-31/+0
| | | | This function was never actually used and is dead code.
* score: Add _CPU_Use_thread_local_storage()Sebastian Huber2022-07-0420-0/+207
| | | | | | | | | | | | 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.
* riscv: Include missing header fileSebastian Huber2022-06-241-0/+2
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* score: Make SMP only code explicitSebastian Huber2022-06-234-3/+31
| | | | | | | Conditional expressions with inline functions are not optimized away if optimization is disabled. Avoid such expressions to prevent dead branches. It helps also during code review to immediately see if a loop is used or not.
* kern_tc.c: Provide a weak hardpps() implementationSebastian Huber2022-06-231-0/+12
| | | | | | | The real implementation of hardpps() is defined in kern_ntptime.c. Use it only if the NTP support is needed by the application. Update #2349.
* score: Use right clock for threadq timeoutsSebastian Huber2022-06-231-2/+2
| | | | | | | | Use CLOCK_REALTIME and CLOCK_MONOTONIC for relative thread queue timeouts instead of CLOCK_REALTIME_COARSE and CLOCK_MONOTONIC_COARSE. This fixes an issue with clock_nanosleep() in combination with clock_gettime(). Close #4669.
* score/cpu: Silence ARM and AARCH64 GCC 12 false trigger array warningChris Johns2022-06-152-1/+7
| | | | | | | | | | | | The false trigger is covered in: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99578 GCC 11 and 12 has been patched for constant pointer casts above 4K. This code casts a constant pointer within the first 4K page. As a result the patch disables the warning. Updates #4662
* kern_tc.c: Update pps_event() for uniprocessor configurationsGabriel Moyano2022-06-101-0/+6
| | | | | | Since pps->capgen equal to zero is not a special value in uniprocessor configurations, there is no need to check for this condition. Update #2349
* arm: Fix PMSA regions for contiguous sectionsSebastian Huber2022-06-081-4/+4
| | | | | | | | | | Sections with identical attributes may be contiguous with a respective begin and end address which is not on a minimum region boundary. The begin address is aligned down to the region base address. The end address is aligned up to the region end address. Account for this in the check for contiguous sections. Update #4202.
* arm: Fix PMSA region mapping with 0x0 end addressSebastian Huber2022-06-081-1/+1
| | | | | | | | A section may span up to the end of the address range. In this case the end address is zero. Use the base address to check if a region should be before another region. Update #4202.
* arm: Fix typoSebastian Huber2022-06-031-2/+2
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* score: Fix pps_fetch()Sebastian Huber2022-05-271-1/+2
| | | | | | Return early only if there was a timeout, otherwise return the PPS info. Update #2349.
* score: Reformat for code coverageSebastian Huber2022-05-231-2/+18
| | | | Close #2349.
* timepps.h: PPS_SYNC defined by defaultGabriel Moyano2022-05-231-10/+0
| | | | Update #2349.
* kern_ntptime.c: Add define in order to remove warningGabriel Moyano2022-05-231-0/+3
| | | | Update #2349.
* kern_tc.c: Enable PPS API supportGabriel Moyano2022-05-231-4/+0
| | | | Update #2349.
* kern_tc.c: Add definitions required by PPS APIGabriel Moyano2022-05-231-0/+6
| | | | Update #2349.
* score: Rename tc_getfrequency()Gabriel Moyano2022-05-231-1/+1
| | | | | | Rename tc_getfrequency() to _Timecounter_Get_frequency(). Update #2349.
* kern_tc.c: Replace FreeBSD event mechanism by adding pointers to functionGabriel Moyano2022-05-231-0/+41
| | | | Update #2349.
* kern_tc.c: Add atomic dependencies required by the PPS APIGabriel Moyano2022-05-231-0/+7
| | | | Update #2349.
* kern_ntptime.c: Add lmax() qmin() definitionsGabriel Moyano2022-05-231-0/+2
| | | | Update #2349.
* kern_ntptime.c: Disable freebsd featuresGabriel Moyano2022-05-231-1/+3
| | | | Update #2349.
* score: Add SPDX License IdentifierSebastian Huber2022-05-184-4/+12
| | | | | | Remove URL in copyright notice. Update #3053.
* score: Fix SMP priority affinity scheduler yieldSebastian Huber2022-05-131-0/+1
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* score: Add SMP priority affinity scheduler yieldTian Ye2022-05-121-0/+18
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* score/src: Add file headers and licensesRyan Long2022-05-043-0/+81
| | | | | These files had no header, copyright, or license. Based on git history, added appropriate copyright and license.
* sparc64-syscall.h: Add file headers and licensesRyan Long2022-05-041-0/+15
| | | | | This file had no header, copyright, or license. Based on git history, added appropriate copyright and license.
* cpukit/microblaze: Add file headers and licensesRyan Long2022-05-042-0/+70
| | | | | These files had no file header, copyright, or license. Based on git history, added appropriate copyright and license.
* heap: Fix heap statistics with protection enabledSebastian Huber2022-04-281-0/+9
| | | | Close #4644.
* Remove duplicate SPDX lines accidentally addedJoel Sherrill2022-04-084-8/+0
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* x86_64/elf_machdep.h: Replace stub with NetBSD versionRyan Long2022-04-081-4/+76
| | | | | | | The other ports included that architecture's version of this file from NetBSD. This patch follows that pattern. closes #4641
* cpukit/score/cpu/moxie: Change license to BSD-2Joel Sherrill2022-04-018-24/+176
| | | | | | Permission received from Anthony Green. Updates #3053.
* cpukit/: Update Eric Norum contact info and normalize file headersJoel Sherrill2022-03-241-21/+25
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* smp: Add fatal errorSebastian Huber2022-03-241-0/+5
| | | | | | | Add SMP-specifc SMP_FATAL_MULTITASKING_START_ON_NOT_ONLINE_PROCESSOR fatal error. This fatal error helps to diagnose a broken SMP startup sequence. Without this error a context switch using the NULL pointer for the thread control block happens which may be difficult to debug.
* score: Add _IO_Relax()Sebastian Huber2022-03-241-0/+53
| | | | | | | This function may be used to burn a couple of processor cycles with minimum impact on the system bus. It may be used in busy wait loops. Since it is a global function, it is possible to wrap it in device driver test code.
* cpukit/aarch64: Add Per_CPU_Control accessorKinsey Moore2022-03-121-0/+23
| | | | | | Add an architecture-specific implementation for _CPU_Get_current_per_CPU_control() to reduce overhead for getting the current CPU's Per_CPU_Control structure.
* arm: Fix PMSA section to region mappingSebastian Huber2022-03-111-22/+33
| | | | | Fix move of regions. Allow sections to be contained in a region (may happen due to region alignment).
* arm: Add _AArch32_PMSA_Map_sections_to_regions()Sebastian Huber2022-03-112-20/+90
| | | | This simplifies unit testing.
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