ci: use soft float target for armv7

Support more platforms by using a the soft float musl target for
aarch32/armv7/v8. The installer is not performance bound by floating
point operations.

.cargo/config.toml

@@ -15,6 +15,10 @@ rustflags = ["-C", "target-feature=+crt-static"]
 linker = "rust-lld"
 rustflags = ["-C", "target-feature=+crt-static"]
 
+[target.armv7-unknown-linux-musleabi]
+linker = "rust-lld"
+rustflags = ["-C", "target-feature=+crt-static"]
+
 # Disable rust-lld for x86 macOS because the linker crashers when compiling
 # the installer in release mode with debug info on.
 # [target.x86_64-apple-darwin]

.github/workflows/main.yml

@@ -162,7 +162,7 @@ jobs:
             target: x86_64-unknown-linux-musl
           - name: linux-armv7
             os: ubuntu-latest
-            target: armv7-unknown-linux-musleabihf
+            target: armv7-unknown-linux-musleabi
           - name: linux-aarch64
             os: ubuntu-24.04-arm
             target: aarch64-unknown-linux-musl
@@ -272,7 +272,7 @@ jobs:
             target: x86_64-unknown-linux-musl
           - name: linux-armv7
             os: ubuntu-latest
-            target: armv7-unknown-linux-musleabihf
+            target: armv7-unknown-linux-musleabi
           - name: linux-aarch64
             os: ubuntu-24.04-arm
             target: aarch64-unknown-linux-musl

doc/installing-from-release.md

@@ -5,6 +5,7 @@ Make sure you've got one of Rayhunter's [supported devices](./supported-devices.
 1. Download the latest `rayhunter-vX.X.X-PLATFORM.zip` from the [Rayhunter releases page](https://github.com/EFForg/rayhunter/releases) for your platform:
     - for Linux on x64 architecture: `linux-x64`
     - for Linux on ARM64 architecture: `linux-aarch64`
+    - for Linux on armv7/v8 (32-bit) architecture: `linux-armv7`
     - for MacOS on Intel (old macbooks) architecture: `macos-intel`
     - for MacOS on ARM (M1/M2 etc.) architecture: `macos-arm`
     - for Windows: `windows-x86_64`

doc/installing-from-source.md

@@ -25,8 +25,9 @@ rustup target add armv7-unknown-linux-musleabihf
 # 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 armv7-unknown-linux-musleabi
+rustup target add x86_64-unknown-linux-musl
 rustup target add aarch64-apple-darwin
 rustup target add x86_64-apple-darwin
 rustup target add x86_64-pc-windows-gnu