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Sebastian Huber
382be2ca57
bsps/mips/shared/gdbstub/ holds a GDB stub of 2001 in five files. No build item names any of them, so no BSP compiles the stub and mips_gdb_stub_install() has no caller. The stub could not link in any case. It installed its handler with rtems_interrupt_catch(), a simple vectored directive which the tree does not have. It calls rtems_gdb_stub_get_current_thread() and two more functions which gdb_if.h declares and no source defines. It declares mips_register_t for __mips 1 and __mips 3 alone, so the preprocessor raises an error for the malta and the csb350 BSP. Its README names the MongooseV BSP, which the tree dropped. cpu_asm.S carries the support of the stub. mips_break() is the breakpoint trampoline and the exception return steps over the break of it. Nothing else calls either one. A commented-out block of the R3000 return logic states that the stub does that work instead. Five comments name the stub. Remove the directory and that support. A back end of cpukit/libdebugger/ will serve the MIPS port. The library carries one for aarch64, arm, i386, microblaze and powerpc today. Update #5752. Assisted-by: Claude:claude-opus-5 claude-code Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
Real-Time Executive for Multiprocessing Systems
RTEMS is a real-time executive (kernel) which provides a high performance environment for embedded applications with the following features:
- Standards based user interfaces.
- Multitasking capabilities.
- Homogeneous and heterogeneous multiprocessor systems.
- Symmetric Multiprocessing (SMP):
- Cluster scheduling: Job-level fixed prority scheduler (EDF) with support for one-to-one and one-to-all thread to processor affinities.
- Locking protocols with transitive priority inheritance, priority ceiling, MRsP and OMIP.
- Event-driven, priority-based, preemptive scheduling.
- Scalable timer and timeout support.
- Optional rate monotonic scheduling.
- Intertask communication and synchronisation.
- Priority inheritance.
- Responsive interrupt management.
- Dynamic memory allocation.
- Dynamic code loading using run-time link editing.
- File systems, IMFS, FAT, RFS, JFFS, NSFv4 (with LibBSD)
- High level of user configurability.
- Link-time configurable schedulers.
- Linker-set based initialization (similar to global C++ constructors).
- Drivers for I2C, SPI and LibBSD has NIC, USB, SD/MMC and Framebuffer.
- Open source with a friendly user license.
RTEMS Project:
Project git repositories are located at:
Online documentation is available at:
RTEMS Doxygen for CPUKit:
RTEMS POSIX 1003.1 Compliance Guide:
RTEMS Discourse User forum for questions, answers and examples:
RTEMS Discord for support:
RTEMS Mailing Lists for general purpose use the users list and for developers use the devel list.
The version number for this software in releases is located in the VERSION file if present.