Merge pull request #31 from srwalter/aarch64-support

Support building for the ARMv8 (64-bit) architecture

classes/rust-bin.bbclass

@@ -36,7 +36,11 @@ OVERLAP_DEPS = "${@get_overlap_deps(d)}"
 # See https://github.com/rust-lang/rust/issues/19680
 RUSTC_FLAGS += "-C prefer-dynamic"
 
-rustlib="${libdir}/${TUNE_ARCH}${TARGET_VENDOR}-${TARGET_OS}/rustlib/${HOST_SYS}/lib"
+rustlib_suffix="${TUNE_ARCH}${TARGET_VENDOR}-${TARGET_OS}/rustlib/${HOST_SYS}/lib"
+# Native sysroot standard library path
+rustlib_src="${prefix}/lib/${rustlib_suffix}"
+# Host sysroot standard library path
+rustlib="${libdir}/${rustlib_suffix}"
 CRATE_NAME ?= "${@d.getVar('BPN', True).replace('-rs', '').replace('-', '_')}"
 BINNAME ?= "${BPN}"
 LIBNAME ?= "lib${CRATE_NAME}-rs"

classes/rust.bbclass

@@ -33,6 +33,8 @@ def rust_base_triple(d, thing):
     if arch.startswith("arm"):
         if os.endswith("gnueabi"):
             os += bb.utils.contains('TUNE_FEATURES', 'callconvention-hard', 'hf', '', d)
+    elif arch.startswith("aarch64"):
+        os = "linux-gnu"
     elif arch.startswith("x86_64"):
         os = "linux-gnu"
     elif arch.startswith("i586"):

recipes/rust/rust.inc

@@ -37,6 +37,12 @@ TARGET_POINTER_WIDTH[arm] = "32"
 FEATURES[arm] = "+v6,+vfp2"
 PRE_LINK_ARGS[arm] = "-Wl,--as-needed"
 
+DATA_LAYOUT[aarch64] = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-n32:64-S128"
+LLVM_TARGET[aarch64] = "aarch64-unknown-linux-gnu"
+TARGET_ENDIAN[aarch64] = "little"
+TARGET_POINTER_WIDTH[aarch64] = "64"
+PRE_LINK_ARGS[aarch64] = "-Wl,--as-needed"
+
 ## x86_64-unknown-linux-gnu
 DATA_LAYOUT[x86_64] = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
 LLVM_TARGET[x86_64] = "x86_64-unknown-linux-gnu"

recipes/rust/rustlib.bb

@@ -9,7 +9,7 @@ DEPENDS += "virtual/${TARGET_PREFIX}rust"
 RUSTLIB_DEP = ""
 
 do_install () {
-	for f in ${STAGING_DIR_NATIVE}/${rustlib}/*.so; do
+	for f in ${STAGING_DIR_NATIVE}/${rustlib_src}/*.so; do
 		echo Installing $f
 		install -D -m 755 $f ${D}/${rustlib}/$(basename $f)
 	done