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Diffstat (limited to 'rtems-notes-5.txt')
-rw-r--r-- | rtems-notes-5.txt | 126 |
1 files changed, 80 insertions, 46 deletions
diff --git a/rtems-notes-5.txt b/rtems-notes-5.txt index 5b23997..ddc2597 100644 --- a/rtems-notes-5.txt +++ b/rtems-notes-5.txt @@ -1,6 +1,6 @@ -= 5.1 Release Notes = +## RTEMS 5.1 Release Notes -== RTEMS Improvements +### RTEMS Improvements In this section, we discuss public API level changes as well as improvements to the implementation of those API routines. @@ -16,91 +16,125 @@ Implementation improvements usually fall into one of the following categories: * Algorithm improvements in execution time or memory usage * Critical section reduction -== API Changes +### API Changes * Most services use now statically allocated resources and no longer need accounting in the application configuration. * The work area initialization (RTEMS Work Space and C Program Heap) changed. - BSPs must provide now a _Memory_Get() function. + BSPs must provide now a `_Memory_Get()` function. * POSIX timers and signals are now the only POSIX resources which are enabled by the POSIX API. -=== API Additions +#### API Additions * Support for recording of high-frequency events in particular on SMP systems * Support for thread pinning (enables support for Epoch Based Reclamation; used by libbsd) * Termios supports now generation of signals. * New fatal sources: - * RTEMS_FATAL_SOURCE_EXCEPTION - * RTEMS_FATAL_SOURCE_PANIC - * RTEMS_FATAL_SOURCE_SMP - * RTEMS_FATAL_SOURCE_INVALID_HEAP_FREE - * RTEMS_FATAL_SOURCE_HEAP + * `RTEMS_FATAL_SOURCE_EXCEPTION` + * `RTEMS_FATAL_SOURCE_PANIC` + * `RTEMS_FATAL_SOURCE_SMP` + * `RTEMS_FATAL_SOURCE_INVALID_HEAP_FREE` + * `RTEMS_FATAL_SOURCE_HEAP` -== API Implementation Improvements +#### API Implementation Improvements * TBD -== API Deprecations +#### API Deprecations -* rtems_iterate_over_all_threads(). Use rtems_task_iterate() instead. +* `rtems_iterate_over_all_threads()`. Use `rtems_task_iterate()` instead. -== API Removals +#### API Removals -* rtems_clock_get() +* `rtems_clock_get()` -== Configuration Changes +### Configuration Changes * All configuration options are now documented. * Most resources are now statically allocated and no longer use the workspace. * New configuration options: - * CONFIGURE_DIRTY_MEMORY - * CONFIGURE_RECORD_EXTENSIONS_ENABLED - * CONFIGURE_RECORD_FATAL_DUMP_BASE64 - * CONFIGURE_RECORD_FATAL_DUMP_BASE64_ZLIB - * CONFIGURE_RECORD_PER_PROCESSOR_ITEMS - * CONFIGURE_VERBOSE_SYSTEM_INITIALIZATION + * `CONFIGURE_DIRTY_MEMORY` + * `CONFIGURE_RECORD_EXTENSIONS_ENABLED` + * `CONFIGURE_RECORD_FATAL_DUMP_BASE64` + * `CONFIGURE_RECORD_FATAL_DUMP_BASE64_ZLIB` + * `CONFIGURE_RECORD_PER_PROCESSOR_ITEMS` + * `CONFIGURE_VERBOSE_SYSTEM_INITIALIZATION` * Removed configuration options: - * CONFIGURE_HAS_OWN_CONFIGURATION_TABLE - * CONFIGURE_HAS_OWN_BDBUF_TABLE - * CONFIGURE_HAS_OWN_DEVICE_DRIVER_TABLE - * CONFIGURE_HAS_OWN_FILESYSTEM_TABLE - * CONFIGURE_HAS_OWN_INIT_TABLE - * CONFIGURE_HAS_OWN_MOUNT_TABLE - * CONFIGURE_HAS_OWN_MULTIPROCESSING_TABLE - * CONFIGURE_POSIX_HAS_OWN_INIT_THREAD_TABLE + * `CONFIGURE_HAS_OWN_CONFIGURATION_TABLE` + * `CONFIGURE_HAS_OWN_BDBUF_TABLE` + * `CONFIGURE_HAS_OWN_DEVICE_DRIVER_TABLE` + * `CONFIGURE_HAS_OWN_FILESYSTEM_TABLE` + * `CONFIGURE_HAS_OWN_INIT_TABLE` + * `CONFIGURE_HAS_OWN_MOUNT_TABLE` + * `CONFIGURE_HAS_OWN_MULTIPROCESSING_TABLE` + * `CONFIGURE_POSIX_HAS_OWN_INIT_THREAD_TABLE` * The helper macro for the clustered scheduler configuration - RTEMS_SCHEDULER_EDF_SMP() has now only one parameter. + `RTEMS_SCHEDULER_EDF_SMP()` has now only one parameter. -== RTEMS Shell Improvements +## RTEMS Shell Improvements The following improvements were made to the RTEMS Shell: -* TBD +* Telnet now supports `joel` script output. Running a `joel` script in a + telnet session now sees the output. Nested `joel` scripts also output to the + telnet session. + +## General -== General +* API header files have been collected from the various locations in the RTEMS + source tree and placed under `cputkit/include` and for BSPs under + `bsps/include`. There is no header pre-install phase when building RTEMS. + +* Improved parallel build performance. Nested `make` calls now run in + parallel. * Added support for the RISC-V 32-bit and 64-bit architecture. + * Added support for the 64-bit PowerPC architecture using the ELFv2 ABI. -* Synchronized support for Journalling Flash File System, Version 2 (JFFS2) with Linux 4.17. + +* Synchronized support for Journalling Flash File System, Version 2 (JFFS2) + with Linux 4.17. + * Import of libfdt from device tree compiler project. -== BSPs and Device Drivers +* Added `libdebugger`, a thread aware GDB debug server with TCP transport + support. Currently the supported architectures are i386 and ARM. The ARM + support is experimental. + +* This is the last release of RTEMS with the `autoconf`/`automake` build + system. RTEMS will be moving to a `waf` based build system driven from YAML + specifications files. The effort is part of the on-going wotk in the RTEMS + project to support qualification of the operating system. + +## BSPs and Device Drivers * General - * TBD + * BSP source code moved from `c/src/lib/libbsd` to `bsps` in the + source tree. The configure and some other related pieces are still + held in the original path. * New BSPs - * BSPs for ARM - * atsamv - Microchip (former Atmel) SAM V71 series - * xilinx-zynqmp - Xilinx Zynq UltraScale+ MPSoC platform + * BSPs for ARM + * `atsamv` - Microchip (former Atmel) SAM V71 series + * `xilinx-zynqmp` - Xilinx Zynq UltraScale+ MPSoC platform * BSPs for RISC-V - * riscv - Family of generic BSPs - * griscv - BSP based on the GRLIB + * `riscv` - Family of generic BSPs + * `griscv` - BSP based on the GRLIB * Significant updates to existing BSPs - * powerpc/qoriq: 64-bit support + * `powerpc/qoriq`: 64-bit support * Removal of obsoleted BSPs - * TBD + * `gdbsim` * Drivers - * Drivers for getentropy() - * TBD + * Drivers for `getentropy()` + +## Ecosystem + +* RSB support to build a BSP software stack of tools, kernel, libbsd, and + supported 3rd party packages. + +* RTEMS Tester (`rtems-test`) support for DHCP/TFTP target hardware testing. + +* RTEMS Trace addition of a new trace record support for target tracing. + +* RTEMS Bootimage, a tool to portability create SD card images. |