Build targets in Shodan repository

Here are lists of user-facing targets in Shodan. They are invoked with the command of m <target>.

Build targets

Target	Source	Output	Description
prereqs			Install build prerequisites
tools		cache	Install RISCV compiler and emulator tools, including
		out/host	Rust, GCC, CLANG, verilator, qemu, renode
kata	kata/	out/kata	SMC seL4 and user space applications
matcha_tock_release	sw/tock/boards/opentitan-matcha	out/tock-release	The operating system running on the security core,
	sw/libtock-rs	out/libtock-rs	and its Rust library
multihart_boot_rom	sw/multihart_boot_rom	out/shodan_boot_rom	Shodan boot rom
springbok	sw/vec	out/springbok	Vector core BSP and RVV test code
iree_compiler		out/host/iree_compiler	IREE host compiler
iree_runtime	toolchain/iree	out/springbok_iree	IREE runtime applications
	sw/vec_iree
iree			Shorthand for iree_compiler and iree_runtime
opentitan_sw_all	hw/opentitan	out/opentitan	HW testing binaries
qemu	toolchain/ristv-qemu	out/host/qemu	QEMU emulator
renode	sim/renode	out/host/renode	Renode emulator
verilator	sim/verilator	out/host/verilator	System Verilog HW emulator
simulate			E2E build and launch renode simulation.
			Targets include matcha_tock_release,
			kata, multihart_boot_rom, iree
debug-simulation			Debug version of simulate to be used with GDB,
			tock target is matcha_tock_debug.

Clean targets

Target	Description
clean	Remove the whole out directory
qemu_clean	Remove out/host/qemu
renode_clean	Remove out/host/renode
verilator_clean	Remove out/host/verilator
toolchain_clean	Remove cache/toolchain
toolchain_llvm_clean	Remove cache/toolchain_iree_rv32imf
opentitan_sw_clean	Remove out/opentitan
tock_clean	Clean out/tock-debug
	and out/tock-release (make clean)

Optional toolchain targets (Used upon request)

The following targets should not be called in the typical development. They should be called by CI and only upon request, i.e., NOT be built regularly.

Target	Description
toolchain	Build GCC toolchain for the security core/SMC
toolchain_llvm	Build LLVM toolchain for the vector core
toolchain_vp	(Optional) Build GCC toolchain for the vector core