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Tier: 2

Bare-metal target for RISC-V CPUs with the RV32I, RV32IM, RV32IMC, RV32IMAFC and RV32IMAC ISAs.

Tier: 3

Bare-metal target for RISC-V CPUs with the RV32IMA ISA.

• Rust Embedded Working Group, RISC-V team

The target is cross-compiled, and uses static linking. No external toolchain is required and the default rust-lld linker works, but you must specify a linker script. The riscv-rt crate provides a suitable one. The riscv-rust-quickstart repository gives an example of an RV32 project.

This target is included in Rust and can be installed via rustup.

This is a cross-compiled no-std target, which must be run either in a simulator or by programming them onto suitable hardware. It is not possible to run the Rust test-suite on this target.

This target supports C code. If interlinking with C or C++, you may need to use riscv32-unknown-elf-gcc as a linker instead of rust-lld.

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