27.7.1.3. Python gem5 user mode simulation
At LKMC 50ac89b779363774325c81157ec8b9a6bdb50a2f gem5 390a74f59934b85d91489f8a563450d8321b602da:
./run \ --emulator gem5 \ --userland "$(buildroot_target_dir)/usr/bin/python3" \ --cli-args rootfs_overlay/lkmc/python/hello.py \ ;
fails with:
fatal: Syscall 318 out of range
which corresponds to the glorious inotify_rm_watch syscall: https://github.com/torvalds/linux/blob/v5.4/arch/arm/tools/syscall.tbl#L335
and aarch64:
./run \ --arch aarch64 \ --emulator gem5 \ --userland "$(./getvar --arch aarch64 buildroot_target_dir)/usr/bin/python3" \ --cli-args rootfs_overlay/lkmc/python/hello.py \ ;
fails with:
fatal: syscall unused#278 (#278) unimplemented.
which corresponds to the glorious getrandom syscall: https://github.com/torvalds/linux/blob/v4.17/include/uapi/asm-generic/unistd.h#L707
Bibliography: