Added arm-none-eabi target

Author: Gilnaa

src/ci/docker/dist-various-1/Dockerfile

@@ -120,13 +120,15 @@ ENV TARGETS=$TARGETS,armebv7r-none-eabi
 ENV TARGETS=$TARGETS,armebv7r-none-eabihf
 ENV TARGETS=$TARGETS,armv7r-none-eabi
 ENV TARGETS=$TARGETS,armv7r-none-eabihf
+ENV TARGETS=$TARGETS,arm-none-eabi
 ENV TARGETS=$TARGETS,thumbv7neon-unknown-linux-gnueabihf
 
 ENV CC_mipsel_unknown_linux_musl=mipsel-openwrt-linux-gcc \
     CC_mips_unknown_linux_musl=mips-openwrt-linux-gcc \
     CC_sparc64_unknown_linux_gnu=sparc64-linux-gnu-gcc \
     CC_x86_64_unknown_redox=x86_64-unknown-redox-gcc \
     CC_armebv7r_none_eabi=arm-none-eabi-gcc \
+    CC_arm_none_eabi=arm-none-eabi-gcc \
     CC_thumbv7neon_unknown_linux_gnueabihf=arm-linux-gnueabihf-gcc \
     AR_thumbv7neon_unknown_linux_gnueabihf=arm-linux-gnueabihf-ar \
     CXX_thumbv7neon_unknown_linux_gnueabihf=arm-linux-gnueabihf-g++

src/librustc_target/spec/arm_none_eabi.rs

@@ -0,0 +1,34 @@
+// Generic arm target for bare-metal code
+//
+// Can be used in conjunction with the `target-feature` and
+// `target-cpu` compiler flags to opt-in more hardware-specific
+// features.
+//
+// For example, `-C target-cpu=cortex-a7`.
+
+use super::{LinkerFlavor, Target, TargetOptions, PanicStrategy};
+
+pub fn target() -> Result<Target, String> {
+    Ok(Target {
+        llvm_target: "arm-none-eabi".to_string(),
+        target_endian: "little".to_string(),
+        target_pointer_width: "32".to_string(),
+        target_c_int_width: "32".to_string(),
+        data_layout: "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64".to_string(),
+        arch: "arm".to_string(),
+        target_os: "none".to_string(),
+        target_env: String::new(),
+        target_vendor: String::new(),
+        linker_flavor: LinkerFlavor::Gcc,
+
+        options: TargetOptions {
+            features: "+strict-align,+v6".to_string(),
+            executables: true,
+            relocation_model: "static".to_string(),
+            max_atomic_width: Some(64),
+            panic_strategy: PanicStrategy::Abort,
+            abi_blacklist: super::arm_base::abi_blacklist(),
+            .. Default::default()
+        },
+    })
+}

src/librustc_target/spec/mod.rs

@@ -351,6 +351,7 @@ supported_targets! {
     ("s390x-unknown-linux-gnu", s390x_unknown_linux_gnu),
     ("sparc-unknown-linux-gnu", sparc_unknown_linux_gnu),
     ("sparc64-unknown-linux-gnu", sparc64_unknown_linux_gnu),
+    ("arm-none-eabi", arm_none_eabi),
     ("arm-unknown-linux-gnueabi", arm_unknown_linux_gnueabi),
     ("arm-unknown-linux-gnueabihf", arm_unknown_linux_gnueabihf),
     ("arm-unknown-linux-musleabi", arm_unknown_linux_musleabi),

src/tools/build-manifest/src/main.rs

@@ -49,6 +49,7 @@ static TARGETS: &[&str] = &[
     "aarch64-unknown-linux-gnu",
     "aarch64-unknown-linux-musl",
     "arm-linux-androideabi",
+    "arm-none-eabi",
     "arm-unknown-linux-gnueabi",
     "arm-unknown-linux-gnueabihf",
     "arm-unknown-linux-musleabi",