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* score: Fix thread initializationSebastian Huber2021-02-261-4/+3
| | | | | | | | 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.
* score: Remove _Objects_Open()Sebastian Huber2021-02-241-1/+1
| | | | | Use the type safe _Objects_Open_u32() instead. Return the object identifier to enforce a common usage pattern.
* score: Canonicalize Doxygen @file commentsSebastian Huber2020-12-021-3/+5
| | | | | | Use common phrases for the file brief descriptions. Update #3706.
* Canonicalize config.h includeSebastian Huber2020-04-161-1/+1
| | | | | | | | Use the following variant which was already used by most source files: #ifdef HAVE_CONFIG_H #include "config.h" #endif
* score: Fix context switch extensions (SMP)Sebastian Huber2020-02-281-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In uniprocessor and SMP configurations, the context switch extensions were called during _Thread_Do_dispatch(): void _Thread_Do_dispatch( Per_CPU_Control *cpu_self, ISR_Level level ) { Thread_Control *executing; executing = cpu_self->executing; ... do { Thread_Control *heir; heir = _Thread_Get_heir_and_make_it_executing( cpu_self ); ... _User_extensions_Thread_switch( executing, heir ); ... _Context_Switch( &executing->Registers, &heir->Registers ); ... } while ( cpu_self->dispatch_necessary ); ... } In uniprocessor configurations, this is fine and the context switch extensions are called for all thread switches except the very first thread switch to the initialization thread. However, in SMP configurations, the context switch may be invalidated and updated in the low-level _Context_Switch() routine. See: https://docs.rtems.org/branches/master/c-user/symmetric_multiprocessing_services.html#thread-dispatch-details In case such an update happens, a thread will execute on the processor which was not seen in the previous call of the context switch extensions. This can confuse for example event record consumers which use events generated by a context switch extension. Fixing this is not straight forward. The context switch extensions call must move after the low-level context switch. The problem here is that we may end up in _Thread_Handler(). Adding the context switch extensions call to _Thread_Handler() covers now also the thread switch to the initialization thread. We also have to save the last executing thread (ancestor) of the processor. Registers or the stack cannot be used for this purpose. We have to add it to the per-processor information. Existing extensions may be affected, since now context switch extensions use the stack of the heir thread. The stack checker is affected by this. Calling the thread switch extensions in the low-level context switch is difficult since at this point an intermediate stack is used which is only large enough to enable servicing of interrupts. Update #3885.
* config: Add _Thread_Idle_bodySebastian Huber2020-02-251-2/+1
| | | | | | | | | Move the idle thread body configuration constant out of the configuration table. Provide a default definition of the idle thread body constant. Update #3875.
* config: Add _Thread_Idle_stack_sizeSebastian Huber2020-02-251-1/+2
| | | | | | | | | | Move the idle thread stack size configuration constant out of the configuration table. Add THREAD_IDLE_STACK_SIZE_DEFAULT and use it to provide a default definition of the idle thread stack size constant. Update #3875.
* score: Statically allocate idle/MPCI stacksSebastian Huber2020-02-121-6/+5
| | | | | | | Place idle and MPCI stacks into extra linker sections. This can be optionally used by applications to control the placement of the stacks. Update #3835.
* score: Move thread stack allocationSebastian Huber2020-02-121-4/+13
| | | | | | Move thread stack allocation to caller side of _Thread_Initialize(). Update #3835.
* score: Add Thread_ConfigurationSebastian Huber2020-02-121-20/+17
| | | | | | | | | Add the Thread_Configuration structure to reduce the parameter count of _Thread_Initialize(). This makes it easier to add more parameters in the future. It simplifies the code generation since most architectures do not have that many registers available for function parameters. Update #3835.
* score: Remove _Stack_Ensure_minimum() callSebastian Huber2020-02-121-2/+1
| | | | | | This call is superfluous since _Thread_Initialize() will do this also. Update #3835.
* score: Rename _SMP_Get_processor_count()Sebastian Huber2019-04-111-2/+3
| | | | | | | Rename _SMP_Get_processor_count() in _SMP_Get_processor_maximum() to be in line with the API level rtems_scheduler_get_processor_maximum(). Update #3732.
* doxygen: Rename Score* groups in RTEMSScore*Sebastian Huber2019-04-041-1/+1
| | | | Update #3706
* score: Static Objects_Information initializationSebastian Huber2018-12-141-1/+1
| | | | | | | | | | | Statically allocate the objects information together with the initial set of objects either via <rtems/confdefs.h>. Provide default object informations with zero objects via librtemscpu.a. This greatly simplifies the workspace size estimate. RTEMS applications which do not use the unlimited objects option are easier to debug since all objects reside now in statically allocated objects of the right types. Close #3621.
* score: Add and use Thread_Control::is_idleSebastian Huber2016-11-091-0/+1
| | | | Update #2797.
* score: Introduce map priority scheduler operationSebastian Huber2016-06-221-1/+3
| | | | | | | | | | | Introduce map/unmap priority scheduler operations to map thread priority values from/to the user domain to/from the scheduler domain. Use the map priority operation to validate the thread priority. The EDF schedulers use this new operation to distinguish between normal priorities and priorities obtain through a job release. Update #2173. Update #2556.
* score: _Thread_Create_idle_for_CPU()Sebastian Huber2016-06-141-12/+12
| | | | Use priority maximum of scheduler instance.
* score: Rename Per_CPU_Control::startedSebastian Huber2016-03-041-1/+1
| | | | | Rename Per_CPU_Control::started into Per_CPU_Control::online to match standard nomenclature.
* score: Create idle threads via linker setSebastian Huber2016-02-031-0/+3
| | | | | | This allows a more fine grained rtems_initialize_data_structures(). Update #2408.
* score: Simplify _Thread_Start()Sebastian Huber2016-01-111-11/+20
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* score: Introduce Thread_Entry_informationSebastian Huber2016-01-111-8/+9
| | | | | | | This avoids potential dead code in _Thread_Handler(). It gets rid of the dangerous function pointer casts. Update #2514.
* score: Use common names for per-CPU variablesSebastian Huber2014-04-221-11/+11
| | | | | | | | | | | | | | | | Use "cpu" for an arbitrary Per_CPU_Control variable. Use "cpu_self" for the Per_CPU_Control of the current processor. Use "cpu_index" for an arbitrary processor index. Use "cpu_index_self" for the processor index of the current processor. Use "cpu_count" for the processor count obtained via _SMP_Get_processor_count(). Use "cpu_max" for the processor maximum obtained by rtems_configuration_get_maximum_processors().
* score: Add clustered/partitioned schedulingSebastian Huber2014-04-151-1/+5
| | | | | | | | | | | | | | | Clustered/partitioned scheduling helps to control the worst-case latencies in the system. The goal is to reduce the amount of shared state in the system and thus prevention of lock contention. Modern multi-processor systems tend to have several layers of data and instruction caches. With clustered/partitioned scheduling it is possible to honour the cache topology of a system and thus avoid expensive cache synchronization traffic. We have clustered scheduling in case the set of processors of a system is partitioned into non-empty pairwise-disjoint subsets. These subsets are called clusters. Clusters with a cardinality of one are partitions. Each cluster is owned by exactly one scheduler instance.
* Change all references of rtems.com to rtems.org.Chris Johns2014-03-211-1/+1
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* smp: Add and use _Per_CPU_Get()Sebastian Huber2013-07-301-1/+1
| | | | | | Add and use _Per_CPU_Get_by_index() and _Per_CPU_Get_index(). Add _Per_CPU_Send_interrupt(). This avoids direct access of _Per_CPU_Information.
* score: Create thread implementation headerSebastian Huber2013-07-261-12/+1
| | | | | | | | Move implementation specific parts of thread.h and thread.inl into new header file threadimpl.h. The thread.h contains now only the application visible API. Remove superfluous header file includes from various files.
* score: Merge sysstate API into one fileSebastian Huber2013-07-241-1/+0
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* score: Create stack implementation headerSebastian Huber2013-07-231-0/+1
| | | | | | Move implementation specific parts of stack.h and stack.inl into new header file stackimpl.h. The stack.h contains now only the application visible API.
* scheduler: Add start idle thread operationSebastian Huber2013-06-141-1/+2
| | | | Add and use _Scheduler_Start_idle().
* score: Simplify _Thread_Create_idle()Sebastian Huber2013-06-141-23/+12
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* score: Rename rtems_smp_get_number_of_processors()Sebastian Huber2013-06-141-1/+1
| | | | | | | | | Rename in rtems_smp_get_processor_count(). Always provide <rtems/score/smp.h> and <rtems/rtems/smp.h>. Add _SMP_Get_processor_count(). This function will be a compile time constant defined to be one on uni-processor configurations. This allows iterations over all processors without overhead on uni-processor configurations.
* score: Simplify _Thread_Create_idle_helper()Sebastian Huber2013-06-071-9/+0
| | | | | The _Thread_Initialize() function has nothing to do with thread dispatching it simply initializes the thread control.
* score: Remove idle field of Per_CPU_ControlSebastian Huber2013-05-311-5/+6
| | | | | | This field is unused except for special case simulator clock drivers. In these places use an alternative. Add and use _Thread_Set_global_exit_status() and _Thread_Get_global_exit_status().
* score misc: Score misc: Clean up Doxygen #5Alex Ivanov2012-11-291-3/+7
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* score: Add and use <rtems/score/userextimpl.h>Sebastian Huber2012-11-221-1/+0
| | | | | This file contains the parts of <rtems/score/userext.h> that are only necessary for the RTEMS implementation.
* sapi: Use rtems_configuration_get_idle_taskSebastian Huber2012-11-071-1/+1
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* sapi: Use rtems_config*_get_idle_task_stack_sizeSebastian Huber2012-11-071-1/+1
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* Remove All CVS Id Strings Possible Using a ScriptJoel Sherrill2012-05-111-2/+0
| | | | | | | | | | | | Script does what is expected and tries to do it as smartly as possible. + remove occurrences of two blank comment lines next to each other after Id string line removed. + remove entire comment blocks which only exited to contain CVS Ids + If the processing left a blank line at the top of a file, it was removed.
* Remove white-spaces.Ralf Corsepius2011-05-241-1/+1
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* 2011-05-11 Jennifer Averett <Jennifer.Averett@OARcorp.com>Jennifer Averett2011-05-111-1/+3
| | | | | | | | * score/Makefile.am, score/preinstall.am, score/include/rtems/score/percpu.h, score/src/percpu.c, score/src/threadcreateidle.c: Modifications to restrict compilation of SMP only code to when SMP is enabled. Entire SMP specific files are disabled via Makefile.am.
* 2011-04-27 Jennifer Averett <Jennifer.Averett@OARcorp.com>Jennifer Averett2011-04-271-1/+1
| | | | | | | | | PR 1784 * sapi/src/exinit.c, score/Makefile.am, score/preinstall.am, score/include/rtems/bspsmp.h, score/src/percpu.c, score/src/smp.c, score/src/threadcreateidle.c: Split bspsmp.h into two files smp.h and bspsmp.h * score/include/rtems/score/smp.h: New file.
* 2011-03-16 Jennifer Averett <jennifer.averett@OARcorp.com>Joel Sherrill2011-03-161-14/+30
| | | | | | | | | | | | | | | | | | | | | | PR 1729/cpukit * configure.ac, sapi/include/confdefs.h, sapi/src/exinit.c, score/Makefile.am, score/preinstall.am, score/cpu/i386/rtems/score/cpu.h, score/cpu/sparc/cpu_asm.S, score/cpu/sparc/rtems/score/cpu.h, score/include/rtems/score/basedefs.h, score/include/rtems/score/context.h, score/include/rtems/score/percpu.h, score/src/percpu.c, score/src/thread.c, score/src/threadcreateidle.c: Add next step in SMP support. This adds an allocated array of the Per_CPU structures to support multiple cpus vs a single instance of the structure which is still used if SMP support is disabled. Configuration support is also added to explicitly enable or disable SMP. But SMP can only be enabled for the CPUs which will support it initially -- SPARC and i386. With the stub BSP support, a BSP can be run as a single core SMP system from an RTEMS data structure standpoint. * aclocal/check-smp.m4, aclocal/enable-smp.m4, score/include/rtems/bspsmp.h, score/include/rtems/score/smplock.h, score/src/smp.c, score/src/smplock.c: New files.
* 2011-01-28 Joel Sherrill <joel.sherrilL@OARcorp.com>Joel Sherrill2011-01-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | * include/rtems/bspIo.h, include/rtems/concat.h, include/rtems/irq.h, score/cpu/i386/rtems/score/idtr.h, score/cpu/powerpc/rtems/powerpc/registers.h, score/src/objectidtoname.c, score/src/schedulerpriorityblock.c, score/src/schedulerpriorityschedule.c, score/src/schedulerpriorityunblock.c, score/src/schedulerpriorityyield.c, score/src/thread.c, score/src/threadchangepriority.c, score/src/threadclearstate.c, score/src/threadclose.c, score/src/threadcreateidle.c, score/src/threaddelayended.c, score/src/threaddispatch.c, score/src/threadget.c, score/src/threadhandler.c, score/src/threadinitialize.c, score/src/threadloadenv.c, score/src/threadready.c, score/src/threadreset.c, score/src/threadrestart.c, score/src/threadresume.c, score/src/threadsetpriority.c, score/src/threadsetstate.c, score/src/threadsettransient.c, score/src/threadstackallocate.c, score/src/threadstackfree.c, score/src/threadstart.c, score/src/threadstartmultitasking.c, score/src/threadsuspend.c, score/src/threadtickletimeslice.c, score/src/threadyieldprocessor.c: Fix typo where license said found in found in.
* 2009-09-11 Joel Sherrill <joel.sherrill@OARcorp.com>Joel Sherrill2009-09-111-1/+1
| | | | | | | | | | | * score/include/rtems/score/object.h, score/inline/rtems/score/object.inl, score/src/objectgetnameasstring.c, score/src/objectidtoname.c, score/src/objectinitializeinformation.c, score/src/objectnamespaceremove.c, score/src/objectnametoidstring.c, score/src/objectsetname.c, score/src/thread.c, score/src/threadcreateidle.c: Disable object string name support when POSIX is not enabled.
* Eliminate TRUE/FALSE.Ralf Corsepius2008-12-221-1/+1
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* 2008-12-15 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill2008-12-151-2/+2
| | | | | | | | | | | | | | | | | | | | | | * itron/include/rtems/itron/itronapi.h, libmisc/capture/capture.c, libmisc/monitor/mon-config.c, libmisc/monitor/mon-driver.c, libmisc/monitor/mon-itask.c, libmisc/monitor/mon-mpci.c, posix/include/rtems/posix/config.h, posix/include/rtems/posix/posixapi.h, rtems/include/rtems/rtems/config.h, rtems/include/rtems/rtems/rtemsapi.h, rtems/src/taskinitusers.c, sapi/include/confdefs.h, sapi/include/rtems/config.h, sapi/include/rtems/init.h, sapi/src/exinit.c, sapi/src/itronapi.c, sapi/src/posixapi.c, sapi/src/rtemsapi.c, score/src/isr.c, score/src/thread.c, score/src/threadcreateidle.c, score/src/threadstackallocate.c, score/src/threadstackfree.c, score/src/wkspace.c: Eliminate pointers to API configuration tables in the main configuration table. Reference the main configuration table and the API configuration tables directly using the confdefs.h version rather than obtaining a pointer to it. This eliminated some variables, a potential fatal error, some unnecessary default configuration structures. Overall, about a 4.5% reduction in the code size for minimum and hello on the SPARC.
* 2008-07-23 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill2008-07-231-25/+6
| | | | | * sapi/include/confdefs.h, score/src/threadcreateidle.c: Idle thread body is now completely configured via the Configuration table.
* 2008-06-13 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill2008-06-131-3/+2
| | | | | | | | | | | | | * posix/include/rtems/posix/pthread.h, posix/src/pthread.c, posix/src/pthreadcreate.c, rtems/include/rtems.h, rtems/src/attr.c, sapi/include/confdefs.h, sapi/include/rtems/config.h, score/inline/rtems/score/stack.inl, score/src/isr.c, score/src/mpci.c, score/src/threadcreateidle.c, score/src/threadinitialize.c, score/src/threadstackallocate.c: Add ability for application to configure minimum stack size. Add RTEMS_CONFIGURED_MINIMUM_STACK_SIZE constant so user can clearly indicate they want the configured as opposed to the recommended minimum stack size.
* 2008-02-28 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill2008-02-281-1/+10
| | | | | | | | | | | | | | * itron/include/rtems/itron/task.h, itron/src/cre_tsk.c, posix/src/pthreadcreate.c, rtems/src/taskcreate.c, rtems/src/taskdelete.c, rtems/src/timerserver.c, score/src/threadclose.c, score/src/threadcreateidle.c, score/src/threadinitialize.c: Switch task create and delete operations to using API Allocator Mutex. This moves almost all uses of the RTEMS Workspace from dispatching disabled to mutex protected which should improve deterministic behavior. The implementation was carefully done to allow task create and delete extensions to invoke more services. In particular, a task delete extension should be able to do mutex and file operations.
* 2007-12-03 Joel Sherrill <joel.sherrill@OARcorp.com>Joel Sherrill2007-12-031-3/+4
| | | | | | | | | | | | | | | | | | | | | | | * libcsupport/src/malloc.c, libmisc/monitor/mon-command.c, posix/preinstall.am, posix/include/rtems/posix/cond.h, posix/include/rtems/posix/mqueue.h, posix/include/rtems/posix/mutex.h, posix/include/rtems/posix/pthread.h, posix/include/rtems/posix/semaphore.h, posix/src/conddestroy.c, posix/src/mutexdestroy.c, posix/src/mutexinit.c, posix/src/mutexsetprioceiling.c, posix/src/mutexunlock.c, sapi/include/confdefs.h, sapi/include/rtems/config.h, sapi/include/rtems/init.h, sapi/include/rtems/sptables.h, sapi/src/exinit.c, score/include/rtems/system.h, score/include/rtems/score/mpci.h, score/src/mpci.c, score/src/thread.c, score/src/threadcreateidle.c, score/src/threadstackallocate.c, score/src/threadstackfree.c, score/src/wkspace.c: Moved most of the remaining CPU Table fields to the Configuration Table. This included pretasking_hook, predriver_hook, postdriver_hook, idle_task, do_zero_of_workspace, extra_mpci_receive_server_stack, stack_allocate_hook, and stack_free_hook. As a side-effect of this effort some multiprocessing code was made conditional and some style clean up occurred.
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