ci: use rust-lld for all release targets

Removes dependency on gcc-based cross-compilation toolchain.

.cargo/config.toml

@@ -1,5 +1,25 @@
+[target.aarch64-apple-darwin]
+linker = "rust-lld"
+rustflags = ["-C", "target-feature=+crt-static"]
+
+[target.aarch64-unknown-linux-musl]
+linker = "rust-lld"
+rustflags = ["-C", "target-feature=+crt-static"]
+
 [target.armv7-unknown-linux-gnueabihf]
-linker = "arm-linux-gnueabihf-gcc"
+linker = "armv7l-unknown-linux-gnueabihf-gcc"
+rustflags = ["-C", "target-feature=+crt-static"]
+
+[target.armv7-unknown-linux-musleabihf]
+linker = "rust-lld"
+rustflags = ["-C", "target-feature=+crt-static"]
+
+[target.x86_64-apple-darwin]
+linker = "rust-lld"
+rustflags = ["-C", "target-feature=+crt-static"]
+
+[target.x86_64-unknown-linux-musl]
+linker = "rust-lld"
 rustflags = ["-C", "target-feature=+crt-static"]
 
 # optimizations to reduce the binary size

.github/workflows/build-release.yml

@@ -56,18 +56,13 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
         with:
-          targets: armv7-unknown-linux-gnueabihf
-      - name: Install cross-compilation dependencies
-        uses: awalsh128/cache-apt-pkgs-action@latest
-        with:
-          packages: build-essential libc6-armhf-cross libc6-dev-armhf-cross gcc-arm-linux-gnueabihf
-          version: 1.0
+          targets: armv7-unknown-linux-musleabihf
       - name: Build rootshell (arm32)
-        run: cargo build --bin rootshell --target armv7-unknown-linux-gnueabihf --release
+        run: cargo build --bin rootshell --target armv7-unknown-linux-musleabihf --release
       - uses: actions/upload-artifact@v4
         with:
           name: rootshell
-          path: target/armv7-unknown-linux-gnueabihf/release/rootshell
+          path: target/armv7-unknown-linux-musleabihf/release/rootshell
           if-no-files-found: error
   build_rayhunter:
     strategy:
@@ -81,18 +76,13 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
         with:
-          targets: armv7-unknown-linux-gnueabihf
-      - name: Install cross-compilation dependencies
-        uses: awalsh128/cache-apt-pkgs-action@latest
-        with:
-          packages: build-essential libc6-armhf-cross libc6-dev-armhf-cross gcc-arm-linux-gnueabihf
-          version: 1.0
+          targets: armv7-unknown-linux-musleabihf
       - name: Build rayhunter-daemon (arm32)
-        run: cargo build --bin rayhunter-daemon --target armv7-unknown-linux-gnueabihf --release --no-default-features --features ${{ matrix.device.name }}
+        run: cargo build --bin rayhunter-daemon --target armv7-unknown-linux-musleabihf --release --no-default-features --features ${{ matrix.device.name }}
       - uses: actions/upload-artifact@v4
         with:
           name: rayhunter-daemon-${{ matrix.device.name }}
-          path: target/armv7-unknown-linux-gnueabihf/release/rayhunter-daemon
+          path: target/armv7-unknown-linux-musleabihf/release/rayhunter-daemon
           if-no-files-found: error
   build_release_zip:
     needs:

README.md

@@ -110,15 +110,27 @@ Follow these instructions if you need to build Rayhunter from source rather than
     * [linux](https://askubuntu.com/questions/652936/adding-android-sdk-platform-tools-to-path-downloaded-from-umake)
     * [macOS](https://www.repeato.app/setting-up-adb-on-macos-a-step-by-step-guide/)
     * [Windows](https://medium.com/@yadav-ajay/a-step-by-step-guide-to-setting-up-adb-path-on-windows-0b833faebf18)
+* Install `curl` on your computer to run the install scripts. It is not needed to build binaries.
 
-### If you're on x86 linux
+### Install Rust targets
 
-Install Rust the usual way and then install cross compiling dependences:
+[Install Rust the usual way](https://www.rust-lang.org/tools/install). Then,
 
-```bash
-sudo apt install curl build-essential libc6-armhf-cross libc6-dev-armhf-cross gcc-arm-linux-gnueabihf
-rustup target add x86_64-unknown-linux-gnu
-rustup target add armv7-unknown-linux-gnueabihf
+- install the cross-compilation target for the device rayhunter will run on:
+```sh
+rustup target add armv7-unknown-linux-musleabihf
+```
+
+- install the statically compiled target for your host machine to build the binary installer [`serial`](./serial).
+```sh
+# check which toolchain you have installed by default with
+rustup show
+# now install the correct variant for your host platform, one of:
+rustup target add x86_64-unknown-linux-musl
+rustup target add aarch64-unknown-linux-musl
+rustup target add aarch64-apple-darwin
+rustup target add x86_64-apple-darwin
+rustup target add x86_64-pc-windows-gnu
 ```
 
 Now you can root your device and install Rayhunter by running `./tools/install-dev.sh`

lib/src/diag_device.rs

@@ -59,18 +59,22 @@ pub const LOG_CODES_FOR_RAW_PACKET_LOGGING: [u32; 11] = [
 const BUFFER_LEN: usize = 1024 * 1024 * 10;
 const MEMORY_DEVICE_MODE: u32 = 2;
 
-#[cfg(target_arch = "arm")]
+#[cfg(target_env = "musl")]
+const DIAG_IOCTL_REMOTE_DEV: i32 = 32;
+#[cfg(all(not(target_env = "musl"), target_arch = "arm"))]
 const DIAG_IOCTL_REMOTE_DEV: u32 = 32;
-#[cfg(target_arch = "x86_64")]
+#[cfg(all(not(target_env = "musl"), target_arch = "x86_64"))]
 const DIAG_IOCTL_REMOTE_DEV: u64 = 32;
-#[cfg(target_arch = "aarch64")]
+#[cfg(all(not(target_env = "musl"), target_arch = "aarch64"))]
 const DIAG_IOCTL_REMOTE_DEV: u64 = 32;
 
-#[cfg(target_arch = "arm")]
+#[cfg(target_env = "musl")]
+const DIAG_IOCTL_SWITCH_LOGGING: i32 = 7;
+#[cfg(all(not(target_env = "musl"), target_arch = "arm"))]
 const DIAG_IOCTL_SWITCH_LOGGING: u32 = 7;
-#[cfg(target_arch = "x86_64")]
+#[cfg(all(not(target_env = "musl"), target_arch = "x86_64"))]
 const DIAG_IOCTL_SWITCH_LOGGING: u64 = 7;
-#[cfg(target_arch = "aarch64")]
+#[cfg(all(not(target_env = "musl"), target_arch = "aarch64"))]
 const DIAG_IOCTL_SWITCH_LOGGING: u64 = 7;
 
 pub struct DiagDevice {

make.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
-cargo build --release --target="armv7-unknown-linux-gnueabihf" #--features debug
+cargo build --release --target="armv7-unknown-linux-musleabihf" #--features debug
 adb shell '/bin/rootshell -c "/etc/init.d/rayhunter_daemon stop"'
-adb push target/armv7-unknown-linux-gnueabihf/release/rayhunter-daemon /data/rayhunter/rayhunter-daemon
+adb push target/armv7-unknown-linux-musleabihf/release/rayhunter-daemon /data/rayhunter/rayhunter-daemon
 echo "rebooting the device..."
 adb shell '/bin/rootshell -c "reboot"'