添加rust的bare bone工具链 (#197)

tools/.gitignore

@@ -2,4 +2,7 @@ grub-2.06.tar.xz*
 grub-2.06/
 arch/i386/legacy/grub/*
 arch/i386/efi/grub/*
-arch/x86_64/efi/grub/*
+arch/x86_64/efi/grub/*
+
+*.tar.gz
+build/*

tools/init_rust_toolchain.sh

@@ -0,0 +1,84 @@
+# 当前脚本用于初始化自定义的Rust工具链
+if [ -z "$(which cargo)" ]; then
+    echo "尚未安装Rust，请先安装Rust"
+    exit 1
+fi
+
+WORK_DIR=$(pwd)
+RUST_SRC_VERSION=1.66.0
+# 初始化bare bone工具链
+DRAGONOS_UNKNOWN_ELF_PATH=$(rustc --print sysroot)/lib/rustlib/x86_64-unknown-dragonos
+mkdir -p ${DRAGONOS_UNKNOWN_ELF_PATH}/lib
+# 设置工具链配置文件
+echo   \
+"{\
+    \"arch\": \"x86_64\",
+    \"code-model\": \"kernel\",
+    \"cpu\": \"x86-64\",
+    \"os\": \"dragonos\",
+    \"target-endian\": \"little\",
+    \"target-pointer-width\": \"64\",
+    \"target-c-int-width\": \"32\",
+    \"data-layout\": \"e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128\",
+    \"disable-redzone\": true,
+    \"features\": \"-mmx,-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-3dnow,-3dnowa,-avx,-avx2,+soft-float\",
+    \"linker\": \"rust-lld\",
+    \"linker-flavor\": \"ld.lld\",
+    \"llvm-target\": \"x86_64-unknown-none\",
+    \"max-atomic-width\": 64,
+    \"panic-strategy\": \"abort\",
+    \"position-independent-executables\": true,
+    \"relro-level\": \"full\",
+    \"stack-probes\": {
+      \"kind\": \"inline-or-call\",
+      \"min-llvm-version-for-inline\": [
+        16,
+        0,
+        0
+      ]
+    },
+    \"static-position-independent-executables\": true,
+    \"supported-sanitizers\": [
+      \"kcfi\"
+    ],
+    \"target-pointer-width\": \"64\"
+}" > ${DRAGONOS_UNKNOWN_ELF_PATH}/target.json || exit 1
+
+
+# echo   \
+# "{
+#   \"llvm-target\": \"x86_64-unknown-none\",
+#   \"data-layout\": \"e-m:e-i64:64-f80:128-n8:16:32:64-S128\",
+#   \"arch\": \"x86_64\",
+#   \"target-endian\": \"little\",
+#   \"target-pointer-width\": \"64\",
+#   \"target-c-int-width\": \"32\",
+#   \"os\": \"dragonos\",
+#   \"linker\": \"rust-lld\",
+#   \"linker-flavor\": \"ld.lld\",
+#   \"executables\": true,
+#   \"features\": \"-mmx,-sse,+soft-float\",
+#   \"disable-redzone\": true,
+#   \"panic-strategy\": \"abort\"
+# }" > ${DRAGONOS_UNKNOWN_ELF_PATH}/target.json || exit 1
+
+
+# 编译标准库 (仍存在问题，不能编译)
+# mkdir -p build || exit 1
+# cd build
+# if [ ! -d "rust" ]; then
+#     git clone -b $RUST_SRC_VERSION https://github.com/rust-lang/rust.git --depth=1 --recursive || exit 1
+# fi
+
+# cd rust
+# git checkout $RUST_SRC_VERSION
+# git submodule update --init --recursive
+
+# cargo clean
+# export RUST_COMPILER_RT_ROOT=$(pwd)/src/llvm-project/compiler-rt
+# CARGO_PROFILE_RELEASE_DEBUG=0 \
+# CARGO_PROFILE_RELEASE_DEBUG_ASSERTIONS=true \
+# RUSTC_BOOTSTRAP=1 \
+# RUSTFLAGS="-Cforce-unwind-tables=yes -Cembed-bitcode=yes" \
+# __CARGO_DEFAULT_LIB_METADATA="stablestd" \
+#     ./x.py build --target x86_64-unknown-dragonos || exit 1