Make EABI code runs on Besta® RTOS devices.

Contains libmuteki-shims, an unofficial, free as in freedom syscall shims and headers for working with Besta® RTOS syscalls, and libmuteki-osdep, an EABI bridge library for Besta® RTOS applets and modules.

Integrating muteki into a C compiler

‍[!TIP] When bootstrapping muteki toolchains (e.g. arm-none-bestaeabi), it's advised to build and install the shims using a bootstrap C compiler before building the libc and the final compiler, since libc depends on it.

meson setup --cross-file meson-cross/<your desired cross file here> build
meson compile -C build
sudo meson install -C build

Integrating muteki syscall definitions into Ghidra

Run python scripts/gen_ghidra_prf.py <path-to-your-ghidra-user-dir>/parserprofiles/muteki-shims.prf to generate a parser profile named muteki-shims.prf, and use File -> Parse C Source... to import the header files using that generated parser profile.

‍[!NOTE] The parser profile needs to be regenerated when the file names or layout under include/ changes, or the project root directory is moved or renamed. Failure to do so may cause unexpected behaviors during import.

Developing muteki using clangd

Generate a fresh build directory named builddir/ and specify --query-driver=/path/to/arm-none-bestaeabi-gcc in the clangd command line to get started.

clangd does not support non-stand-alone (headers-only) files at this moment. To make the language server work properly, open the test file under src/test.c first before opening any of the header files. Fail to do so may cause the language server to output bogus errors on how it cannot find system headers.