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Building with Vendor-Provided Binary Toolchain (Using MilkV Duo as an Example)

This document demonstrates the process of building coremark using the Milkv-Duo compilation environment.

First, enter the compilation environment:

# Install the compilation toolchain gnu-milkv-milkv-duo-musl-bin
$ ruyi install gnu-milkv-milkv-duo-musl-bin
# Create a virtual environment milkv-venv with the generic profile
$ ruyi venv -t gnu-milkv-milkv-duo-musl-bin generic milkv-venv
# Activate the virtual environment
$ . milkv-venv/bin/ruyi-activate
«Ruyi milkv-venv» $

The coremark source code can be directly downloaded from the Ruyi software repository:

«Ruyi milkv-venv» $ mkdir coremark
«Ruyi milkv-venv» $ cd coremark
«Ruyi milkv-venv» $ ruyi extract coremark
info: downloading https://mirror.iscas.ac.cn/RuyiSDK/dist/coremark-1.01.tar.gz to /home/myon/.cache/ruyi/distfiles/coremark-1.01.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  391k  100  391k    0     0  1400k      0 --:--:-- --:--:-- --:--:-- 1404k
info: extracting coremark-1.01.tar.gz for package coremark-1.0.1
info: package coremark-1.0.1 extracted to current working directory

This operation will download the coremark source code from the Ruyi software repository and unpack it into the current directory.

Since the toolchain used is gnu-milkv-milkv-duo-bin, check the bin folder and edit the build script:

«Ruyi milkv-venv» $ sed -i 's/\bgcc\b/riscv64-unknown-linux-musl-gcc/g' linux64/core_portme.mak

Build coremark:

«Ruyi milkv-venv» $ make PORT_DIR=linux64 LFLAGS_END=-march=rv64gcv0p7xthead link
riscv64-unknown-linux-musl-gcc -O2 -Ilinux64 -I. -DFLAGS_STR=\""-O2   -march=rv64gcv0p7xthead"\" -DITERATIONS=0  core_list_join.c core_main.c core_matrix.c core_state.c core_util.c linux64/core_portme.c -o ./coremark.exe -march=rv64gcv0p7xthead
Link performed along with compile
«Ruyi milkv-venv» $ file coremark.exe
coremark.exe: ELF 64-bit LSB executable, UCB RISC-V, RVC, double-float ABI, version 1 (SYSV), dynamically linked, interpreter /lib/ld-musl-riscv64v0p7_xthead.so.1, with debug_info, not stripped

You can see that the RISC-V architecture binary has been successfully built. Note that this entire process is not cross-compilation if performed in a riscv64 environment.

Exit the virtual environment:

«Ruyi milkv-venv» $ ruyi-deactivate
$

Running on the Latest Milkv Duo Image​

Transfer the coremark binary to the Milkv Duo. Change the IP address of the Milkv Duo according to your actual situation.

$ scp -O ./coremark.exe root@192.168.42.1:~

Run on the Milkv Duo:

[root@milkv-duo]~# ./coremark.exe
2K performance run parameters for coremark.
CoreMark Size    : 666
Total ticks      : 14911
Total time (secs): 14.911000
Iterations/Sec   : 2011.937496
Iterations       : 30000
Compiler version : GCC13.1.0
Compiler flags   : -O2   -static
Memory location  : Please put data memory location here
                        (e.g. code in flash, data on heap etc)
seedcrc          : 0xe9f5
[0]crclist       : 0xe714
[0]crcmatrix     : 0x1fd7
[0]crcstate      : 0x8e3a
[0]crcfinal      : 0x5275
Correct operation validated. See readme.txt for run and reporting rules.
CoreMark 1.0 : 2011.937496 / GCC13.1.0 -O2   -static / Heap