toddler-ng

The next generation Toddler

Major Goals

• Written in C99
• Unified boot protocol for all architectures with Device Tree support, combined with ACPI on x86 and OFW on PPC/SPARC
• Support more architectures (ARM, PowerPC, x86, RISC-V, Alpha, SPARC, m68k) and machines (e.g., Multiple ARM boards)
• More efficient IPC
• Refined kernel APIs
• Refined VFS and user model
• Complete standard C library
• Console, shell, and utilities
• Run on QEMU and other emulators
• Run on real machines

Long-term Goals

• NetBSD as an environment system
• X11
• Package management system

Misc.

• Fix up SMP support
• x86: replace NASM assmebly with GAS on x86 and multiboot compliant
• More architectures - OpenRISC, HPPA, SuperH, IA64, s390, VAX

Status

• Planned = Not yet started
• Initial = Initial exploration
• Active = Active development
• Current = Up to date
• WIP = Work in progress

Targets

Target	Loader	HAL	SMP	Note
ia32-pc-multiboot	Current	Active	Yes
amd64-pc-multiboot	Current	Active	Yes
alpha-clipper-qemu	Active	Planned
armv7-raspi2-qemu	Current	Current	Yes
aarch64v8-raspi3-qemu	Current	Active		Minor fixes needed
mips32l-malta-qemu	Current	Current	Yes*	SMP: *-qemu_smp
mips32b-malta-qemu	Current	Current	Yes*	Minor fixes needed
mips64l-malta-qemu	Current	Current	Yes*	SMP: *-qemu_smp
mips64b-malta-qemu	Current	Current	Yes*	Minor fixes needed
powerpc-mac-qemu	Current	Active		Minor fixes needed
powerpc64-mac-qemu	Initial	Planned
sparcv8-leon3-qemu	Current	Planned		Minor fixes needed
sparcv8-sun4m-qemu	Active	Planned
sparcv9-sun4u-qemu	Planned	Planned
riscv32-virt-qemu	Current	Current	Yes
riscv64-virt-qemu	Current	Current	Yes
m68k-mcf5208-qemu	Active	Planned
sh4-r2d-qemu	Active	Planned
openrisc-sim-qemu	Current	Current	Yes*	SMP: *-qemu_smp
ia64-sim-ski	Initial	Planned
s390-virtio-qemu	Planned	Planned
zarch-virtio-qemu	Planned	Planned
hppa-sim-qemu	Planned	Planned
vax-sim-simh	Initial	Planned

• MIPS SMP lacks GIC support
• MIPS64 QEMU emulates using only single thread
• OpenRISC QEMU supports up to 2 CPUs

Additional Targets

Target	Status
amd64-pc-uefi	Planned
aarch64v8-virt-qemu	Planned
mips32l-ci20-generic	Planned
mips64l-loongson3-generic	Planned
powerpc-mac-g3	Planned
powerpc64-mac-g3	Planned
powerpc64-pseries-generic	Planned
riscv32-sifive_u-qemu	Planned
riscv64-sifive_u-qemu	Planned

Kernel

Component	Status
Process management	Current
Page allocation	Current
Object allocation	Current
IPC	Current
Kernel call	Current
System API	Current

System

Server	Status
Virtual file system	Active
User account	Planned
Device management	Active
Text UI	Active
Graphics UI	Planned

Driver	Status
Partition	Planned
File systems	Active
RAM FS	Active
Serial	Active
Video	Planned
Disk	Planned
Keyboard	Planned
Mouse	Planned
Network	Planned

Apps

App	Status
Init	Active
Login	Planned
Shell	Active