Compiling Haiku for RISCV64

Haiku can be compiled for devices using the RISC-V 64bit processor architecture. (RV64GC)

Please ensure that you have obtained a copy of Haiku’s source code as described in Get the Haiku Source Code if you have not already done so.

Create a compiler toolchain

Building the RISCV64 compiler toolchain is quite easy using Haiku’s configure tool.

For a complete list of flags for the configure script, see Haiku’s Configure Options

1. Obtain a copy of Haiku and its buildtools.
2. Within the haiku source directory, create your workspace for RISCV64 via mkdir generated.riscv64; cd generated.riscv64
3. Run configure to build your RISCV64 toolchain. ../configure --use-gcc-pipe -j4 --cross-tools-source ../../buildtools --build-cross-tools riscv64

Building a filesystem image

Once you have a complete RISCV64 toolchain, you can build a Haiku filesystem image via jam -j2 -q @minimum-mmc

Emulating Haiku

The RISCV64 images can be emulated in QEMU with an EFI firmware like U-Boot, or installed to physical boards.

U-Boot

Haiku provides ready-to-use U-Boot binaries in the haiku/firmware repository, as well as the commands that were used to build them.

If you’re interested in digging deeper, the following resources can help you gain a more general understanding of how to work with U-Boot:

• U-Boot README (github.com)
• Build U-Boot (docs.u-boot.org)
• QEMU RISC-V - Board-specific doc (docs.u-boot.org)

Running Haiku using U-Boot

After having successfully compiled Haiku and obtaining a suitable u-boot.bin file, copy u-boot.bin into the generated.riscv64 directory and run the following command:

qemu-system-riscv64 -kernel u-boot.bin -M virt -m 2048 \
	-device virtio-blk-device,drive=x0,bus=virtio-mmio-bus.0 \
	-drive file=haiku-mmc.image,if=none,format=raw,id=x0 \
	-device usb-ehci,id=ehci -device usb-tablet -device usb-kbd \
	-device ati-vga -serial stdio

Alternatively, you can replace u-boot.bin with the file path that the file u-boot.bin is located in.