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  • 准备环境 安装source包和xargo
rustup add component rust-src
cargo install xargo
  • 指定openwrt的gcc环境 拷贝toolchain到指定目录,或者在源目录下不动,在bash脚本~/.bashrc下编辑指定toolchain的bin目录,供xargo工程使用。

  • 编辑build.rs 指定连接时需要使用到的lib库,内容如下:

use std::env;

fn main() {
    let staging_dir = env::var("STAGING_DIR").unwrap();
    println!(
        r"cargo:rustc-link-search={}/target-mipsel_24kec+dsp_uClibc-0.9.33.2/usr/lib",
        staging_dir
    );
}
  • 在.cargo/config指定目标
[build]
target = "mipsel-unknown-linux-gnu"

[target.mipsel-unknown-linux-gnu]
linker = "mipsel-openwrt-linux-uclibc-gcc"
rustflags = ["-C", "embed-bitcode"]
#rustflags = ["-C", "embed-bitcode", "-C", "prefer-dynamic"]
  • 下载github代码,放到openwrt的package某目录下
https://github.com/likon/hello-rust

然后make menuconfig应该会出现hello-rust了。

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