环境配置

需要rust nightly 版本

rustup default nightly

创建文件（windows）

aarch64-unknown-linux-ohos-clang.cmd

path\to\openharmony\9\native\llvm\bin\clang.exe ^

-target aarch64-linux-ohos ^

--sysroot=path\to\openharmony\9\native\sysroot ^

-D__MUSL__ %*

armv7-unknown-linux-ohos-clang.cmd

path\to\openharmony\9\native\llvm\bin\clang.exe ^

-target arm-linux-ohos ^

--sysroot=path\to\openharmony\9\native\sysroot ^

-D__MUSL__ ^

-march=armv7-a ^

-mfloat-abi=softfp ^

-mtune=generic-armv7-a ^

-mthumb %*

（Linux 类似）

修改~/.cargo/config.toml

添加

[target.aarch64-unknown-linux-ohos]

ar = "path/to/openharmony/9/native/llvm/bin/llvm-ar.exe"

linker = "path/to/aarch64-unknown-linux-ohos-clang.cmd"



[target.armv7-unknown-linux-ohos]

ar = "path/to/openharmony/9/native/llvm/bin/llvm-ar.exe"

linker = "path/to/armv7-unknown-linux-ohos-clang.cmd"

在项目路径构建

cargo  build --target aarch64-unknown-linux-ohos -Zbuild-std --release

参考
*-linux-ohos - The rustc book (rust-lang.org)