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* rtems: Add files to Doxygen groupsSebastian Huber2023-07-261-21/+70
| | | | | | | Provide basic Doxygen comments. Update #3706. Update #3707.
* Update company nameSebastian Huber2023-05-201-1/+1
| | | | | The embedded brains GmbH & Co. KG is the legal successor of embedded brains GmbH.
* cpukit/include/rtems: Change license to BSD-2Joel Sherrill2022-03-251-3/+22
| | | | Updates #3053.
* cpukit/: Scripted embedded brains header file clean upJoel Sherrill2022-03-101-6/+0
| | | | Updates #4625.
* score: Ensure only one CPU if requiredSebastian Huber2021-09-211-0/+1
| | | | | | | Issue the new fatal SMP error SMP_FATAL_SCHEDULER_REQUIRES_EXACTLY_ONE_PROCESSOR if the system starts with not exactly one processor and an uniprocessor scheduler is configured.
* Add system initialization step for target hashSebastian Huber2021-02-261-0/+1
| | | | Update #4267.
* config: Adjust stack allocator initializationSebastian Huber2021-02-241-1/+1
| | | | | | | Use the right system initialization step for the stack allocator initialization. Do the stack allocator initialization before the workspace initialization so that _Memory_Allocate() can be used to get memory for the allocator.
* score: Add _Stack_Allocator_do_initialize()Sebastian Huber2020-08-311-0/+1
| | | | | | | | Do the stack allocator initialization and sanity check only if a user-provided stack allocator was configured. This avoids a dependency of _Thread_Handler_initialization() on the stack allocator. Update #3959.
* libio: Add POSIX user environment pointer to TCBSebastian Huber2020-02-251-0/+1
| | | | | | | | | | The IO library used a POSIX key to store an optional POSIX user environment pointer. This pulled in the POSIX keys support in every application configuration. Add a user environment pointer to the thread control block (TCB) instead. Applications which do not need the POSIX user environment will just get an overhead of one pointer per thread. Close #3882.
* sysinit: Add RTEMS_SYSINIT_ZERO_MEMORYSebastian Huber2020-02-061-1/+2
| | | | | | | | Use a dedicate system initialization step to zero the memory used for the workspace and C program heap. This avoids dead code in case CONFIGURE_ZERO_WORKSPACE_AUTOMATICALLY is not configured.
* config: Add CONFIGURE_VERBOSE_SYSTEM_INITIALIZATIONSebastian Huber2020-02-041-0/+6
| | | | Update #3861.
* sysinit: Add RTEMS_SYSINIT_ORDER_LAST_BUT_[1-9]Sebastian Huber2020-02-041-12/+21
| | | | Update #3838.
* bsps: Rework work area initializationSebastian Huber2020-02-041-1/+6
| | | | | | | | | | | | | | | | | | | | The work area initialization was done by the BSP through bsp_work_area_initialize(). This approach predated the system initialization through the system initialization linker set. The workspace and C program heap were unconditionally initialized. The aim is to support RTEMS application configurations which do not need the workspace and C program heap. In these configurations, the workspace and C prgram heap should not get initialized. Change all bsp_work_area_initialize() to implement _Memory_Get() instead. Move the dirty memory, sbrk(), per-CPU data, workspace, and malloc() heap initialization into separate system initialization steps. This makes it also easier to test the individual initialization steps. This change adds a dependency to _Heap_Extend() to all BSPs. This dependency will be removed in a follow up change. Update #3838.
* stackchk: Add RTEMS_SYSINIT_ISR_STACKSebastian Huber2020-02-041-0/+1
| | | | | | | Use a dedicated system initialization step for the stack checker interrupt stack support. Update #3838.
* bsps: Add RTEMS_SYSINIT_BSP_EARLYSebastian Huber2020-02-041-0/+1
| | | | | | | Add new BSP system initialization step for work to be performed before the work areas are initialized. Update #3838.
* rtems: Fix MPCI initializationSebastian Huber2020-01-021-2/+6
| | | | Update #2408.
* record: Initialize records earlierSebastian Huber2019-08-301-4/+4
| | | | | | | | The _Record_Initialize() function depends only initialized read-only data. Call it as the first initialization step to allow tracing of the complete system initialization. Update #3665.
* record: Use BSS section instead of per-CPU dataSebastian Huber2019-08-281-5/+5
| | | | | | | | | | | The .rtemsrwset section is used for the per-CPU data. This section has loadable content. Place the ring buffers in the BSS section to avoid large executable image sizes. Not using the per-CPU data makes it possible to initialize the record support earlier. Update #3665.
* Add low level event recording supportSebastian Huber2019-01-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add low level event recording infrastructure for system and user defined events. The infrastructure is able to record high frequency events such as * SMP lock acquire/release, * interrupt entry/exit, * thread switches, * UMA zone allocate/free, and * Ethernet packet input/output, etc. It allows post-mortem analysis in fatal error handlers, e.g. the last events are in the record buffer, the newest event overwrites the oldest event. It is possible to detect record buffer overflows for consumers that expect a continuous stream of events, e.g. to display the system state in real-time. The implementation supports high-end SMP machines (more than 1GHz processor frequency, more than four processors). Add a new API instead. The implementation uses per-processor data structures and no atomic read-modify-write operations. It is uses per-processor ring buffers to record the events. The CPU counter is used to get the time of events. It is combined with periodic uptime events to synchronize it with CLOCK_REALTIME. The existing capture engine tries to solve this problem also, but its performance is not good enough for high-end production systems. The main issues are the variable-size buffers and the use of SMP locks for synchronization. To fix this, the API would change significantly. Update #3665.
* Add RTEMS_SYSINIT_CPU_COUNTERSebastian Huber2018-06-151-1/+2
| | | | | | Add initialization step for the CPU counter support. Update #3456.
* Reassign system initilization order numbersSebastian Huber2018-06-151-39/+39
| | | | | Assign each system initialization step a number divisible by 256 to allow more easily future additions. Keep the order as is.
* Remove make preinstallChris Johns2018-01-251-0/+118
A speciality of the RTEMS build system was the make preinstall step. It copied header files from arbitrary locations into the build tree. The header files were included via the -Bsome/build/tree/path GCC command line option. This has at least seven problems: * The make preinstall step itself needs time and disk space. * Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error. * There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult. * The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit. * An introduction of a new build system is difficult. * Include paths specified by the -B option are system headers. This may suppress warnings. * The parallel build had sporadic failures on some hosts. This patch removes the make preinstall step. All installed header files are moved to dedicated include directories in the source tree. Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc, etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g. erc32, imx, qoriq, etc. The new cpukit include directories are: * cpukit/include * cpukit/score/cpu/@RTEMS_CPU@/include * cpukit/libnetworking The new BSP include directories are: * bsps/include * bsps/@RTEMS_CPU@/include * bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include There are build tree include directories for generated files. The include directory order favours the most general header file, e.g. it is not possible to override general header files via the include path order. The "bootstrap -p" option was removed. The new "bootstrap -H" option should be used to regenerate the "headers.am" files. Update #3254.
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