Add support for armv6 / armv7 with musleabihf (#79)

Author: ekzhang

scripts/release.sh

@@ -7,24 +7,40 @@
 
 set +e
 
+# x86_64: for most Linux servers
 TARGET_CC=x86_64-unknown-linux-musl-cc \
 CARGO_TARGET_X86_64_UNKNOWN_LINUX_MUSL_LINKER=x86_64-unknown-linux-musl-gcc \
 cargo build --release --target x86_64-unknown-linux-musl
 
+# aarch64: for newer Linux servers
 TARGET_CC=aarch64-unknown-linux-musl-cc \
 CARGO_TARGET_AARCH64_UNKNOWN_LINUX_MUSL_LINKER=aarch64-unknown-linux-musl-gcc \
 cargo build --release --target aarch64-unknown-linux-musl
 
+# armv6l: for devices like Raspberry Pi Zero W
+TARGET_CC=arm-unknown-linux-musleabihf-cc \
+CARGO_TARGET_ARM_UNKNOWN_LINUX_MUSLEABIHF_LINKER=arm-unknown-linux-musleabihf-gcc \
+cargo build --release --target arm-unknown-linux-musleabihf
+
+# armv7l: for devices like Oxdroid XU4
+TARGET_CC=armv7-unknown-linux-musleabihf-cc \
+CARGO_TARGET_ARMV7_UNKNOWN_LINUX_MUSLEABIHF_LINKER=armv7-unknown-linux-musleabihf-gcc \
+cargo build --release --target armv7-unknown-linux-musleabihf
+
+# x86_64-apple-darwin: for macOS on Intel
 SDKROOT=$(xcrun -sdk macosx13.3 --show-sdk-path) \
 MACOSX_DEPLOYMENT_TARGET=$(xcrun -sdk macosx13.3 --show-sdk-platform-version) \
 cargo build --release --target x86_64-apple-darwin
 
+# aarch64-apple-darwin: for macOS on Apple Silicon
 cargo build --release --target aarch64-apple-darwin
 
 temp=$(mktemp)
 targets=(
   x86_64-unknown-linux-musl
   aarch64-unknown-linux-musl
+  arm-unknown-linux-musleabihf
+  armv7-unknown-linux-musleabihf
   x86_64-apple-darwin
   aarch64-apple-darwin
 )

static/get

@@ -20,6 +20,8 @@ esac
 case "$(uname -m)" in
   aarch64 | aarch64_be | arm64 | armv8b | armv8l) arch="aarch64";;
   x86_64 | x64 | amd64) arch="x86_64";;
+  armv6l) arch="arm"; suffix+="eabihf";;
+  armv7l) arch="armv7"; suffix+="eabihf";;
   *) echo "Unsupported arch $(uname -m)"; exit 1;;
 esac