*-unknown-linux-ohos

级别：2

  • aarch64-unknown-linux-ohos
  • armv7-unknown-linux-ohos
  • x86_64-unknown-linux-ohos

级别：3

  • loongarch64-unknown-linux-ohos

面向 OpenHarmony 操作系统的目标。

目标维护者

设置

OpenHarmony SDK 目前不支持直接进行 Rust 编译，因此需要进行一些设置。

首先，您必须从 此页面 获取 OpenHarmony SDK。选择您正在开发的 OpenHarmony 版本，并下载“标准系统的公共 SDK 包”。

创建以下 shell 脚本，封装来自 OpenHarmony SDK 的 Clang

aarch64-unknown-linux-ohos-clang.sh

#!/bin/sh
exec /path/to/ohos-sdk/linux/native/llvm/bin/clang \
  -target aarch64-linux-ohos \
  --sysroot=/path/to/ohos-sdk/linux/native/sysroot \
  -D__MUSL__ \
  "$@"

aarch64-unknown-linux-ohos-clang++.sh

#!/bin/sh
exec /path/to/ohos-sdk/linux/native/llvm/bin/clang++ \
  -target aarch64-linux-ohos \
  --sysroot=/path/to/ohos-sdk/linux/native/sysroot \
  -D__MUSL__ \
  "$@"

armv7-unknown-linux-ohos-clang.sh

#!/bin/sh
exec /path/to/ohos-sdk/linux/native/llvm/bin/clang \
  -target arm-linux-ohos \
  --sysroot=/path/to/ohos-sdk/linux/native/sysroot \
  -D__MUSL__ \
  -march=armv7-a \
  -mfloat-abi=softfp \
  -mtune=generic-armv7-a \
  -mthumb \
  "$@"

armv7-unknown-linux-ohos-clang++.sh

#!/bin/sh
exec /path/to/ohos-sdk/linux/native/llvm/bin/clang++ \
  -target arm-linux-ohos \
  --sysroot=/path/to/ohos-sdk/linux/native/sysroot \
  -D__MUSL__ \
  -march=armv7-a \
  -mfloat-abi=softfp \
  -mtune=generic-armv7-a \
  -mthumb \
  "$@"

x86_64-unknown-linux-ohos-clang.sh

#!/bin/sh
exec /path/to/ohos-sdk/linux/native/llvm/bin/clang \
  -target x86_64-linux-ohos \
  --sysroot=/path/to/ohos-sdk/linux/native/sysroot \
  -D__MUSL__ \
  "$@"

x86_64-unknown-linux-ohos-clang++.sh

#!/bin/sh
exec /path/to/ohos-sdk/linux/native/llvm/bin/clang++ \
  -target x86_64-linux-ohos \
  --sysroot=/path/to/ohos-sdk/linux/native/sysroot \
  -D__MUSL__ \
  "$@"

未来版本的 OpenHarmony SDK 将避免此过程。

构建 Rust 程序

Rustup 为此目标提供了预编译的工件，您可以使用以下命令安装：

rustup target add aarch64-unknown-linux-ohos
rustup target add armv7-unknown-linux-ohos
rustup target add x86_64-unknown-linux-ohos

您需要在 ~/.cargo/config.toml 中配置要使用的链接器

[target.aarch64-unknown-linux-ohos]
ar = "/path/to/ohos-sdk/linux/native/llvm/bin/llvm-ar"
linker = "/path/to/aarch64-unknown-linux-ohos-clang.sh"

[target.armv7-unknown-linux-ohos]
ar = "/path/to/ohos-sdk/linux/native/llvm/bin/llvm-ar"
linker = "/path/to/armv7-unknown-linux-ohos-clang.sh"

[target.x86_64-unknown-linux-ohos]
ar = "/path/to/ohos-sdk/linux/native/llvm/bin/llvm-ar"
linker = "/path/to/x86_64-unknown-linux-ohos-clang.sh"

从源代码构建目标

您可以选择从源代码构建 Rust 工具链，而不是使用 rustup。创建一个包含以下内容的 config.toml

profile = "compiler"
change-id = 115898

[build]
sanitizers = true
profiler = true

[target.aarch64-unknown-linux-ohos]
cc = "/path/to/aarch64-unknown-linux-ohos-clang.sh"
cxx = "/path/to/aarch64-unknown-linux-ohos-clang++.sh"
ar = "/path/to/ohos-sdk/linux/native/llvm/bin/llvm-ar"
ranlib = "/path/to/ohos-sdk/linux/native/llvm/bin/llvm-ranlib"
linker  = "/path/to/aarch64-unknown-linux-ohos-clang.sh"

[target.armv7-unknown-linux-ohos]
cc = "/path/to/armv7-unknown-linux-ohos-clang.sh"
cxx = "/path/to/armv7-unknown-linux-ohos-clang++.sh"
ar = "/path/to/ohos-sdk/linux/native/llvm/bin/llvm-ar"
ranlib = "/path/to/ohos-sdk/linux/native/llvm/bin/llvm-ranlib"
linker  = "/path/to/armv7-unknown-linux-ohos-clang.sh"

[target.x86_64-unknown-linux-ohos]
cc = "/path/to/x86_64-unknown-linux-ohos-clang.sh"
cxx = "/path/to/x86_64-unknown-linux-ohos-clang++.sh"
ar = "/path/to/ohos-sdk/linux/native/llvm/bin/llvm-ar"
ranlib = "/path/to/ohos-sdk/linux/native/llvm/bin/llvm-ranlib"
linker  = "/path/to/x86_64-unknown-linux-ohos-clang.sh"

测试

可以运行 Rust 测试套件，但由于 OpenHarmony 模拟器的设置方式（没有网络），目前比较困难。

交叉编译工具链和 C 代码

您可以使用上面的 shell 脚本为目标编译 C 代码。