Add 0.1.4 compiler_builtins. Git ignore llc.

kernel/build-rv64

@@ -95,7 +95,18 @@ fi
 CNAME=compiler_builtins
 if ! [[ -f ${OUTDIR}/${CNAME}.o ]]
 then
-rustc --crate-name compiler_builtins $CARGO_PATH/registry/src/github.com-1ecc6299db9ec823/compiler_builtins-0.1.3/src/lib.rs \
+
+	if [[ -d $CARGO_PATH/registry/src/github.com-1ecc6299db9ec823/compiler_builtins-0.1.3 ]]
+	then
+		COMPILER_BUILTINS_PATH=$CARGO_PATH/registry/src/github.com-1ecc6299db9ec823/compiler_builtins-0.1.3
+	elif [[ -d $CARGO_PATH/registry/src/github.com-1ecc6299db9ec823/compiler_builtins-0.1.4 ]]
+	then
+		COMPILER_BUILTINS_PATH=$CARGO_PATH/registry/src/github.com-1ecc6299db9ec823/compiler_builtins-0.1.4
+	else
+		echo "Cannot find compiler_builtins crate! Please file an issue report"
+	fi
+
+	rustc --crate-name compiler_builtins ${COMPILER_BUILTINS_PATH}/src/lib.rs \
 			--color always --crate-type lib --emit=metadata,llvm-bc \
 			-C opt-level=3 \
 			-C debuginfo=2 \
@@ -393,7 +404,7 @@ fi
 CNAME=rcore_process
 if ! [[ -f ${OUTDIR}/${CNAME}.o ]]
 then
-rustc --edition=2018 --crate-name rcore_process $PWD/../crate/process/src/lib.rs \
+M_MODE="" rustc --edition=2018 --crate-name rcore_process $PWD/../crate/process/src/lib.rs \
     --color always --crate-type lib --emit=metadata,llvm-bc \
     -C opt-level=1 \
     -C debuginfo=2 \

tools/.gitignore

@@ -0,0 +1 @@
+llc