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tools: remove llvm-patch (#15) 

* tools: remove llvm-patch
* docs: update reference to 1.53 compiler binaries from esp-rs/rust repo
This commit is contained in:
Juraj Michálek 2021-07-28 16:14:45 +02:00 committed by GitHub
parent bc610399e6
commit 0cf3bf1554
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11 changed files with 97 additions and 141 deletions
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35
Dockerfile
View File

@ -5,32 +5,25 @@ ENV LC_ALL=C.UTF-8
ENV LANG=C.UTF-8 ENV LANG=C.UTF-8
ENV RUSTUP_HOME=/opt/rust ENV RUSTUP_HOME=/opt/rust
ENV CARGO_HOME=/opt/cargo ENV CARGO_HOME=/opt/cargo
ENV PATH=/opt/cargo/bin:/opt/rust/bin:/opt/xtensa-esp32-elf-clang/bin:/opt/llvm-patch/bin:$PATH ENV PATH=/opt/cargo/bin:/opt/rust/bin:/opt/xtensa-esp32-elf-clang/bin:$PATH
RUN curl https://sh.rustup.rs -sSf | bash -s -- --profile minimal --default-toolchain nightly -y RUN curl https://sh.rustup.rs -sSf | bash -s -- --profile minimal --default-toolchain nightly -y
WORKDIR /opt WORKDIR /opt
RUN wget -q https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/bionic/rust-1.50.0-dev-x86_64-unknown-linux-gnu-bionic.tar.xz \ RUN wget -q https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/rust-1.53.0-dev-x86_64-unknown-linux-gnu.tar.xz \
&& tar xvf rust-1.50.0-dev-x86_64-unknown-linux-gnu-bionic.tar.xz \ && tar xvf rust-1.53.0-dev-x86_64-unknown-linux-gnu.tar.xz \
&& cd rust-1.50.0-dev-x86_64-unknown-linux-gnu \ && ./rust-1.53.0-dev-x86_64-unknown-linux-gnu/install.sh --destdir=/opt/esp --prefix="" --without=rust-docs \
&& ./install.sh --destdir=/opt/xtensa --prefix="" --without=rust-docs \ && rm -rf rust-1.53.0-dev-x86_64-unknown-linux-gnu*
&& cd /opt \
&& rm -rf rust-1.50.0-dev-x86_64-unknown-linux-gnu*
RUN wget -q https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/rust-src-1.50.0-dev.tar.xz \ RUN wget -q https://dl.espressif.com/dl/idf-rust/dist/noarch/rust-src-1.53.0-dev.tar.xz \
&& tar xvf rust-src-1.50.0-dev.tar.xz \ && tar xvf rust-src-1.53.0-dev.tar.xz \
&& cd rust-src-1.50.0-dev \ && ./rust-src-1.53.0-dev/install.sh --destdir=/opt/esp --prefix="" --without=rust-docs \
&& ./install.sh --destdir=/opt/xtensa --prefix="" --without=rust-docs \ && rm -rf rust-src-1.53.0-dev* \
&& cd /opt \ && rustup toolchain link esp /opt/esp \
&& rm -rf rust-src-1.50.0-dev* \ && rustup default esp
&& rustup toolchain link xtensa /opt/xtensa \
&& rustup default xtensa
RUN wget -q https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21247-g65ed48e-linux-amd64.tar.xz \ RUN wget -q https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21249-g36dbc8b-linux-amd64.tar.xz \
&& tar xf xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21247-g65ed48e-linux-amd64.tar.xz \ && tar xf xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21249-g36dbc8b-linux-amd64.tar.xz \
&& rm xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21247-g65ed48e-linux-amd64.tar.xz \ && rm xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21249-g36dbc8b-linux-amd64.tar.xz
&& wget -q https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/bionic/llvm-patch-0.1.x86_64-unknown-linux-gnu-bionic.tar.gz \
&& tar xzf llvm-patch-0.1.x86_64-unknown-linux-gnu-bionic.tar.gz \
&& rm llvm-patch-0.1.x86_64-unknown-linux-gnu-bionic.tar.gz
RUN git clone https://github.com/espressif/rust-esp32-example.git RUN git clone https://github.com/espressif/rust-esp32-example.git

7
README.md
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@ -12,6 +12,13 @@ First, install the ESP-IDF SDK as shown in the [Get Started](https://docs.espres
To support the Xtensa instruction set, build and install custom LLVM and Rust toolchains as shown in the [Rust On Xtensa](docs/rust-on-xtensa.md) guide. To support the Xtensa instruction set, build and install custom LLVM and Rust toolchains as shown in the [Rust On Xtensa](docs/rust-on-xtensa.md) guide.
Alternatively you might build the project in the container where image already contains pre-installed Rust and ESP-IDF:
```
docker run -it georgikrocks/esp-idf-rust /bin/bash
idf.py build
```
### ESP32-C3 ### ESP32-C3
Install the RISCV target for Rust: Install the RISCV target for Rust:

2
components/rustlib/CMakeLists.txt
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@ -12,7 +12,7 @@ if(CONFIG_IDF_TARGET_ARCH_RISCV)
set(CARGO_TARGET "riscv32i-unknown-none-elf") set(CARGO_TARGET "riscv32i-unknown-none-elf")
set(CARGO_FEATURES_ARG "") set(CARGO_FEATURES_ARG "")
elseif(CONFIG_IDF_TARGET_ARCH_XTENSA) elseif(CONFIG_IDF_TARGET_ARCH_XTENSA)
set(CARGO_TARGET "xtensa-esp32-none-elf") set(CARGO_TARGET "xtensa-esp32-espidf")
set(CARGO_FEATURES_ARG "--features=std") set(CARGO_FEATURES_ARG "--features=std")
endif() endif()

2
components/rustlib/build.rs
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@ -37,7 +37,7 @@ fn run_bindgen(target: &str, out_dir: &Path) {
builder = builder.use_core(); builder = builder.use_core();
builder = builder.ctypes_prefix("crate::ffi"); builder = builder.ctypes_prefix("crate::ffi");
} }
"xtensa-esp32-none-elf" => { "xtensa-esp32-espidf" => {
// Make sure that LLVM_CONFIG_PATH has been set to point to the // Make sure that LLVM_CONFIG_PATH has been set to point to the
// Xtensa build of llvm-config. // Xtensa build of llvm-config.
builder = builder.clang_arg("--target=xtensa-esp32-elf"); builder = builder.clang_arg("--target=xtensa-esp32-elf");

20
docs/rust-on-xtensa-installation-aarch64-apple-darwin.md
View File

@ -11,21 +11,17 @@ Tested OS: macOS Big Sur M1
``` ```
rustup toolchain install nightly rustup toolchain install nightly
mkdir -p ~/.rustup/toolchains/xtensa mkdir -p ~/.rustup/toolchains/esp
wget --continue https://dl.espressif.com/dl/idf-rust/dist/aarch64-apple-darwin/rust-1.50.0-dev-aarch64-apple-darwin.tar.xz wget --continue https://dl.espressif.com/dl/idf-rust/dist/aarch64-apple-darwin/rust-1.53.0-dev-aarch64-apple-darwin.tar.xz
tar xvf rust-1.50.0-dev-aarch64-apple-darwin.tar.xz tar xvf rust-1.53.0-dev-aarch64-apple-darwin.tar.xz
pushd rust-1.50.0-dev-aarch64-apple-darwin ./rust-1.53.0-dev-aarch64-apple-darwin/install.sh --destdir=~/.rustup/toolchains/xtensa --prefix="" --without=rust-docs
./install.sh --destdir=~/.rustup/toolchains/xtensa --prefix="" --without=rust-docs
popd
wget --continue https://dl.espressif.com/dl/idf-rust/dist/aarch64-apple-darwin/rust-src-1.50.0-dev.tar.xz wget --continue https://dl.espressif.com/dl/idf-rust/dist/noarch/rust-src-1.53.0-dev.tar.xz
tar xvf rust-src-1.50.0-dev.tar.xz tar xvf rust-src-1.53.0-dev.tar.xz
pushd rust-src-1.50.0-dev ./rust-src-1.53.0-dev/install.sh --destdir=~/.rustup/toolchains/esp --prefix=""
./install.sh --destdir=~/.rustup/toolchains/xtensa --prefix=""
popd
rustup default xtensa rustup default esp
wget --continue https://dl.espressif.com/dl/idf-rust/dist/aarch64-apple-darwin/xtensa-esp32-elf-llvm11_0_0-aarch64-apple-darwin.tar.xz wget --continue https://dl.espressif.com/dl/idf-rust/dist/aarch64-apple-darwin/xtensa-esp32-elf-llvm11_0_0-aarch64-apple-darwin.tar.xz
tar xf xtensa-esp32-elf-llvm11_0_0-aarch64-apple-darwin.tar.xz tar xf xtensa-esp32-elf-llvm11_0_0-aarch64-apple-darwin.tar.xz

20
docs/rust-on-xtensa-installation-x86_64-apple-darwin.md
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@ -11,21 +11,17 @@ Tested OS: macOS Big Sur x64
``` ```
rustup toolchain install nightly rustup toolchain install nightly
mkdir -p ~/.rustup/toolchains/xtensa mkdir -p ~/.rustup/toolchains/esp
wget https://dl.espressif.com/dl/idf-rust/dist/x86_64-apple-darwin/rust-1.50.0-dev-x86_64-apple-darwin.tar.xz wget https://dl.espressif.com/dl/idf-rust/dist/x86_64-apple-darwin/rust-1.53.0-dev-x86_64-apple-darwin.tar.xz
tar xvf rust-1.50.0-dev-x86_64-apple-darwin.tar.xz tar xvf rust-1.53.0-dev-x86_64-apple-darwin.tar.xz
pushd rust-1.50.0-dev-x86_64-apple-darwin ./rust-1.53.0-dev-x86_64-apple-darwin/install.sh --destdir=~/.rustup/toolchains/esp --prefix="" --without=rust-docs
./install.sh --destdir=~/.rustup/toolchains/xtensa --prefix="" --without=rust-docs
popd
wget https://dl.espressif.com/dl/idf-rust/dist/x86_64-apple-darwin/rust-src-1.50.0-dev.tar.xz wget https://dl.espressif.com/dl/idf-rust/dist/noarch/rust-src-1.53.0-dev.tar.xz
tar xvf rust-src-1.50.0-dev.tar.xz tar xvf rust-src-1.53.0-dev.tar.xz
pushd rust-src-1.50.0-dev ./rust-src-1.53.0-dev/install.sh --destdir=~/.rustup/toolchains/esp --prefix="" --without=rust-docs
./install.sh --destdir=~/.rustup/toolchains/xtensa --prefix="" --without=rust-docs
popd
rustup default xtensa rustup default esp
wget https://dl.espressif.com/dl/idf-rust/dist/x86_64-apple-darwin/xtensa-esp32-elf-llvm11_0_0-x86_64-apple-darwin.tar.xz wget https://dl.espressif.com/dl/idf-rust/dist/x86_64-apple-darwin/xtensa-esp32-elf-llvm11_0_0-x86_64-apple-darwin.tar.xz
tar xf xtensa-esp32-elf-llvm11_0_0-x86_64-apple-darwin.tar.xz tar xf xtensa-esp32-elf-llvm11_0_0-x86_64-apple-darwin.tar.xz

39
docs/rust-on-xtensa-installation-x86_64-pc-windows-msvc.md
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@ -15,37 +15,32 @@ choco install 7zip
rustup toolchain install nightly rustup toolchain install nightly
mkdir -p ~/.rustup/toolchains/xtensa mkdir -p ~\.rustup\toolchains\esp
Invoke-WebRequest https://dl.espressif.com/dl/idf-rust/dist/x86_64-pc-windows-msvc/rust-1.50.0-dev-x86_64-pc-windows-msvc.tar.xz -OutFile rust-1.50.0-dev-x86_64-pc-windows-msvc.tar.xz Invoke-WebRequest https://dl.espressif.com/dl/idf-rust/dist/x86_64-pc-windows-msvc/rust-1.53.0-dev-x86_64-pc-windows-msvc.tar.xz -OutFile rust-1.53.0-dev-x86_64-pc-windows-msvc.tar.xz
7z e .\rust-1.50.0-dev-x86_64-pc-windows-msvc.tar.xz 7z e .\rust-1.53.0-dev-x86_64-pc-windows-msvc.tar.xz
7z x .\rust-1.50.0-dev-x86_64-pc-windows-msvc.tar 7z x .\rust-1.53.0-dev-x86_64-pc-windows-msvc.tar
pushd rust-1.50.0-dev-x86_64-pc-windows-msvc pushd rust-1.53.0-dev-x86_64-pc-windows-msvc
cp -Recurse .\rustc\bin ~\.rustup\toolchains\xtensa\ cp -Recurse .\rustc\bin ~\.rustup\toolchains\esp\
cp -Recurse .\rustc\lib ~\.rustup\toolchains\xtensa\ cp -Recurse .\rustc\lib ~\.rustup\toolchains\esp\
cp -Recurse .\rustc\share ~\.rustup\toolchains\xtensa\ cp -Recurse .\rustc\share ~\.rustup\toolchains\esp\
cp -Recurse .\rust-std-x86_64-pc-windows-msvc\lib\* ~\.rustup\toolchains\xtensa\lib\ cp -ErrorAction SilentlyContinue -Recurse .\rust-std-x86_64-pc-windows-msvc\lib\* ~\.rustup\toolchains\esp\lib\
popd popd
Invoke-WebRequest https://dl.espressif.com/dl/idf-rust/dist/x86_64-pc-windows-msvc/rust-src-1.50.0-dev.tar.xz -OutFile rust-src-1.50.0-dev.tar.xz Invoke-WebRequest https://dl.espressif.com/dl/idf-rust/dist/noarch/rust-src-1.53.0-dev.tar.xz -OutFile rust-src-1.53.0-dev.tar.xz
7z e .\rust-src-1.50.0-dev.tar.xz 7z e .\rust-src-1.53.0-dev.tar.xz
7z x .\rust-src-1.50.0-dev.tar 7z x .\rust-src-1.53.0-dev.tar
pushd rust-src-1.50.0-dev pushd rust-src-1.53.0-dev
cp -Recurse .\rust-src\lib\* ~\.rustup\toolchains\xtensa\lib\ cp -ErrorAction SilentlyContinue -Recurse .\rust-src\lib\* ~\.rustup\toolchains\esp\lib\
popd popd
rustup default xtensa rustup default esp
Invoke-WebRequest https://dl.espressif.com/dl/idf-rust/dist/x86_64-pc-windows-msvc/xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21247-g65ed48e-win64.zip -OutFile xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21247-g65ed48e-win64.zip Invoke-WebRequest https://dl.espressif.com/dl/idf-rust/dist/x86_64-pc-windows-msvc/xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21249-g36dbc8b-win64.zip -OutFile xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21249-g36dbc8b-win64.zip
7z x xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21247-g65ed48e-win64.zip 7z x xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21249-g36dbc8b-win64.zip
$ClangPath=Join-Path -Path (Get-Location) -ChildPath xtensa-esp32-elf-clang\bin $ClangPath=Join-Path -Path (Get-Location) -ChildPath xtensa-esp32-elf-clang\bin
$env:PATH="${ClangPath};$env:PATH" $env:PATH="${ClangPath};$env:PATH"
Invoke-WebRequest https://dl.espressif.com/dl/idf-rust/dist/x86_64-pc-windows-msvc/llvm-patch-0.1.x86_64-pc-windows-msvc.tar.gz -OutFile llvm-patch-0.1.x86_64-pc-windows-msvc.tar.gz
tar xzf llvm-patch-0.1.x86_64-pc-windows-msvc.tar.gz
$ClangPatchPath=Join-Path -Path (Get-Location) -ChildPath llvm-patch\bin
$env:PATH="${ClangPatchPath};$env:PATH"
Invoke-WebRequest https://github.com/espressif/rust-esp32-example/archive/refs/heads/main.zip -OutFile rust-esp32-example.zip Invoke-WebRequest https://github.com/espressif/rust-esp32-example/archive/refs/heads/main.zip -OutFile rust-esp32-example.zip
7z x rust-esp32-example.zip 7z x rust-esp32-example.zip
cd rust-esp32-example-main cd rust-esp32-example-main

44
docs/rust-on-xtensa-installation-x86_64-unknown-linux-gnu-bionic.md
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@ -1,44 +0,0 @@
# Rust on Xtensa Installation for Linux x64
Tested OS: Ubuntu 18 x64
## Prerequisites
- rustup - installed with nightly toolchain - https://rustup.rs/
## Commands
```
sudo apt install gcc wget xz-utils
rustup toolchain install nightly
mkdir -p ~/.rustup/toolchains/xtensa
wget https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/bionic/rust-1.50.0-dev-x86_64-unknown-linux-gnu-bionic.tar.xz
tar xvf rust-1.50.0-dev-x86_64-unknown-linux-gnu-bionic.tar.xz
pushd rust-1.50.0-dev-x86_64-unknown-linux-gnu
./install.sh --destdir=~/.rustup/toolchains/xtensa --prefix="" --without=rust-docs
popd
wget https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/rust-src-1.50.0-dev.tar.xz
tar xvf rust-src-1.50.0-dev.tar.xz
pushd rust-src-1.50.0-dev
./install.sh --destdir=~/.rustup/toolchains/xtensa --prefix="" --without=rust-docs
popd
rustup default xtensa
wget https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21247-g65ed48e-linux-amd64.tar.xz
tar xf xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21247-g65ed48e-linux-amd64.tar.xz
export PATH="`pwd`/xtensa-esp32-elf-clang/bin/:$PATH"
wget https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/llvm-patch-0.1.x86_64-unknown-linux-gnu.tar.gz
tar xzf llvm-patch-0.1.x86_64-unknown-linux-gnu.tar.gz
export PATH="`pwd`/llvm-patch/bin/:$PATH"
wget --continue https://github.com/espressif/rust-esp32-example/archive/refs/heads/main.zip
unzip main.zip
cd rust-esp32-example-main
idf.py build
```

32
docs/rust-on-xtensa-installation-x86_64-unknown-linux-gnu.md
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@ -1,8 +1,6 @@
# Rust on Xtensa Installation for Linux x64 # Rust on Xtensa Installation for Linux x64
Tested OS: Ubuntu 20 x64, Mint 20 x64 Tested OS: Ubuntu 18 x64, Ubuntu 20 x64, Mint 20 x64, OpenSUSE Thumbleweed
Ubuntu 18: Please follow instructions for [Linux Ubuntu 18 x64](rust-on-xtensa-installation-x86_64-unknown-linux-gnu-bionic.md) to avoid problem with `GLIBC_2.29' not found.
## Prerequisites ## Prerequisites
@ -15,30 +13,22 @@ sudo apt install gcc wget xz-utils
rustup toolchain install nightly rustup toolchain install nightly
mkdir -p ~/.rustup/toolchains/xtensa mkdir -p ~/.rustup/toolchains/esp
wget https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/rust-1.50.0-dev-x86_64-unknown-linux-gnu.tar.xz wget https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/rust-1.53.0-dev-x86_64-unknown-linux-gnu.tar.xz
tar xvf rust-1.50.0-dev-x86_64-unknown-linux-gnu.tar.xz tar xvf rust-1.53.0-dev-x86_64-unknown-linux-gnu.tar.xz
pushd rust-1.50.0-dev-x86_64-unknown-linux-gnu ./rust-1.53.0-dev-x86_64-unknown-linux-gnu/install.sh --destdir=~/.rustup/toolchains/esp --prefix="" --without=rust-docs
./install.sh --destdir=~/.rustup/toolchains/xtensa --prefix="" --without=rust-docs
popd
wget https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/rust-src-1.50.0-dev.tar.xz wget https://dl.espressif.com/dl/idf-rust/dist/noarch/rust-src-1.53.0-dev.tar.xz
tar xvf rust-src-1.50.0-dev.tar.xz tar xvf rust-src-1.53.0-dev.tar.xz
pushd rust-src-1.50.0-dev ./rust-src-1.53.0-dev/install.sh --destdir=~/.rustup/toolchains/esp --prefix="" --without=rust-docs
./install.sh --destdir=~/.rustup/toolchains/xtensa --prefix="" --without=rust-docs
popd
rustup default xtensa rustup default esp
wget https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21247-g65ed48e-linux-amd64.tar.xz wget https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21249-g36dbc8b-linux-amd64.tar.xz
tar xf xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21247-g65ed48e-linux-amd64.tar.xz tar xf xtensa-esp32-elf-llvm11_0_0-llvmorg-11-init-21249-g36dbc8b-linux-amd64.tar.xz
export PATH="`pwd`/xtensa-esp32-elf-clang/bin/:$PATH" export PATH="`pwd`/xtensa-esp32-elf-clang/bin/:$PATH"
wget https://dl.espressif.com/dl/idf-rust/dist/x86_64-unknown-linux-gnu/llvm-patch-0.1.x86_64-unknown-linux-gnu.tar.gz
tar xzf llvm-patch-0.1.x86_64-unknown-linux-gnu.tar.gz
export PATH="`pwd`/llvm-patch/bin/:$PATH"
wget --continue https://github.com/espressif/rust-esp32-example/archive/refs/heads/main.zip wget --continue https://github.com/espressif/rust-esp32-example/archive/refs/heads/main.zip
unzip main.zip unzip main.zip
cd rust-esp32-example-main cd rust-esp32-example-main

29
docs/rust-on-xtensa.md
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@ -4,11 +4,15 @@
The installation process of ready to use custom build of Rust and LLVM is described here: The installation process of ready to use custom build of Rust and LLVM is described here:
* [Linux Ubuntu 20 x64/Mint 20 x64](rust-on-xtensa-installation-x86_64-unknown-linux-gnu.md) * [Linux Ubuntu 18, Ubuntu 20 x64, Mint 20 x64, OpenSUSE Thumbleweed x64](rust-on-xtensa-installation-x86_64-unknown-linux-gnu.md)
* [Linux Ubuntu 18 x64](rust-on-xtensa-installation-x86_64-unknown-linux-gnu-bionic.md)
* [macOS Big Sur x64](rust-on-xtensa-installation-x86_64-apple-darwin.md) * [macOS Big Sur x64](rust-on-xtensa-installation-x86_64-apple-darwin.md)
* [macOS Big Sur arm64](rust-on-xtensa-installation-aarch64-apple-darwin.md) * [macOS Big Sur arm64](rust-on-xtensa-installation-aarch64-apple-darwin.md)
* [Windows 10 x64](rust-on-xtensa-installation-x86_64-pc-windows-msvc.md) * [Windows 10 x64](rust-on-xtensa-installation-x86_64-pc-windows-msvc.md)
* Not supported: Linux arm64 - missing support in ESP-IDF - https://github.com/espressif/esp-idf/issues/6475
## Troubleshooting
### Can't find crate for `std`
Make sure to install Rust toolchain nightly: Make sure to install Rust toolchain nightly:
@ -22,6 +26,27 @@ error[E0463]: can't find crate for `std`
= note: the `xtensa-esp32-none-elf` target may not be installed = note: the `xtensa-esp32-none-elf` target may not be installed
``` ```
### Error: use of unstable library feature 'restricted_std'
Error message:
```
Compiling rustlib v0.1.0 (rust-esp32-example-main/components/rustlib)
error[E0658]: use of unstable library feature 'restricted_std'
|
= help: add `#![feature(restricted_std)]` to the crate attributes to enable
error: aborting due to previous error
For more information about this error, try `rustc --explain E0658`.
error: could not compile `rustlib`
```
Solution:
Change the target to `xtensa-esp32-espidf`.
## Building from the scratch
Following text describes the build process when building LLVM and Rust from the scratch. Following text describes the build process when building LLVM and Rust from the scratch.

6
support/rust/Dockerfile
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@ -3,10 +3,8 @@ WORKDIR /opt
RUN apt update \ RUN apt update \
&& apt install -y gcc cmake ccache ninja-build git python3 curl g++ pkg-config libssl-dev && apt install -y gcc cmake ccache ninja-build git python3 curl g++ pkg-config libssl-dev
RUN git clone https://github.com/ivmarkov/rust.git \ RUN git clone https://github.com/esp-rs/rust.git \
&& cd rust \ && cd rust \
&& git checkout stable \ && ./configure --experimental-targets=Xtensa --enable-extended --tools=rustfmt \
&& ./configure --experimental-targets=Xtensa --enable-extended --tools=rustfmt --disable-docs --disable-compiler-docs --set="build.python=python3" \
&& python3 x.py dist --stage 2 || echo "Build failed - silencing error to persist current build artifacts" && python3 x.py dist --stage 2 || echo "Build failed - silencing error to persist current build artifacts"
# speed-up rebuild: --set="local-rebuild=true"