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Kernel

Phoenix-RTOS is based on the written from scratch dedicated microkernel. Microkernel is effectively implemented and consists of about 20K lines of code (LoC). Microkernel is responsible for:

  • memory management,
  • thread and process management,
  • inter-thread communication and synchronization.

Kernel is divided into five subsystems.

  • hal - hardware abstraction layer
  • lib - common routines
  • vm - virtual memory management
  • proc - process and thread management
  • test - test for other subsystems

Kernel source code

The source code of the kernel could be obtained using the following command

git clone http://github.com/phoenix-rtos.com/phoenix-rtos-kernel

Compilation

For compilation of the microkernel traditional make system is used. To compile you should define the TARGET variable in the main Makefile located in src/ directory. The list of available targets is defined inside the file. The structure of target consist of three parts: <cpu>-<platform>-<board>.

After defining the TARGET variable the set of command should be used.

make clean

Removes all intermediate files (e.g. object files).

make depend

Analyses dependencies between files and stores it in .depend files.

make

Compiles kernel and creates the ELF and BIN files in ../src/ directory.