Comment 6 for bug 1858461

It is possible to do the following:

cd /usr/src/linux
make clean
make CC=clang
~/workspace/CastXML/build/bin/castxml -nostdinc -isystem /usr/lib/clang/9.0.1/include -I./arch/x86/include -I./arch/x86/include/generated -I./include -I./arch/x86/include/uapi -I./arch/x86/include/generated/uapi -I./include/uapi -include ./include/linux/kconfig.h -D__KERNEL__ arch/x86/entry/syscall_32.c --castxml-output=1 -o /tmp/syscall_32.xml

It generates all information including params about 32bit syscalls for current amd64 platform. Unfortunately cross compilation of generic kernel using mips clang toolchain is almost impossible today. It is an idea for future. So today we have to parse "include/linux/syscalls.h", "include/linux/compat.h", "arch/mips/kernel/linux32.c", etc without respect to config and syntax.