prebuilt.md

Prebuilt Binaries

The prebuilt binaries for rv32emu are prepared primarily because the RISC-V Sail Model executable is required for the RISC-V Architecture Test, and selected RISC-V ELF files are useful for ISA simulation validation and testing. Some of these prebuilt binaries are stored in rv32emu-prebuilt. During testing or benchmarking, these binaries are automatically downloaded into the build/linux-x86-softfp/ and build/riscv32/ directories by default. The RISC-V binaries are compiled using the xPack RISC-V GCC toolchain with the options -march=rv32im -mabi=ilp32. The x86 binaries are compiled by GCC with -m32 -mno-sse -mno-sse2 -msoft-float options and use ieeelib as the soft-fp library.

To fetch the prebuilt binaries manually, run:

$ make artifact

Or build the binaries from scratch (the RISC-V cross-compiler is required):

$ make artifact ENABLE_PREBUILT=0 [CROSS_COMPILE=<COMPILER_PREFIX>]

The compiler prefix varies according to the used toolchain, such as riscv-none-elf-, riscv32-unknown-elf-, etc.

The prebuilt binaries in rv32emu-prebuilt are built from the following repositories and resources:

• ansibench
  • coremark
  • stream
  • nbench
• rv8-bench
  • aes
  • dhrystone
  • miniz
  • norx
  • primes
  • qsort
  • sha512
• captcha : See tests/captcha.c
• donut : See tests/donut.c
• doom : See sysprog21/doom_riscv
• fcalc : See tests/fcalc.c
• hamilton : See tests/hamilton.c
• jit : See tests/jit.c
• lena: See tests/lena.c
• line : See tests/line.c
• maj2random : See tests/maj2random.c
• mandelbrot : See tests/mandelbrot.c
• nqueens : See tests/nqueens.c
• nyancat : See tests/nyancat.c
• pi : See tests/pi.c
• puzzle : See tests/puzzle.c
• qrcode : See tests/qrcode.c
• richards : See tests/richards.c
• rvsim : See tests/rvsim.c
• spirograph : See tests/spirograph.c
• uaes : See tests/uaes.c

To determine performance of the floating point arithmetic, the following RISC-V binaries are built with option -march=rv32imf:

• quake : See sysprog21/quake-embedded
• scimark2 : See SciMark 2.0

There are still some prebuilt standalone RISC-V binaries under build/ directory only for testing purpose:

• hello.elf : See tests/asm-hello
• cc.elf : See tests/cc
• chacha20.elf : See tests/chacha20
• ieee754.elf : See tests/ieee754.c [RV32F]
• jit-bf.elf : See ezaki-k/xkon_beta
• readelf.elf : See tests/readelf
• smolnes.elf : See tests/smolnes [RV32M]