support rust-analyzer for board_qemu features

Author: chyyuu

.vscode/settings.json

@@ -6,5 +6,8 @@
     "rust.all_targets": false,
     // For Rust Analyzer plugin users:
     "rust-analyzer.cargo.target": "riscv64gc-unknown-none-elf",
-    "rust-analyzer.checkOnSave.allTargets": false
-}
+    "rust-analyzer.checkOnSave.allTargets": false,
+    "rust-analyzer.cargo.features": [
+        "board_qemu"
+    ]
+}

easy-fs-fuse/Cargo.toml

@@ -9,4 +9,8 @@ edition = "2018"
 [dependencies]
 clap = "2.33.3"
 easy-fs = { path = "../easy-fs" }
-rand = "0.8.0"
+rand = "0.8.0"
+
+[features]
+board_qemu = []
+board_k210 = []

easy-fs/Cargo.toml

@@ -12,3 +12,7 @@ lazy_static = { version = "1.4.0", features = ["spin_no_std"] }
 
 [profile.release]
 debug = true
+
+[features]
+board_qemu = []
+board_k210 = []

user/Cargo.toml

@@ -13,3 +13,7 @@ riscv = { git = "https://github.com/rcore-os/riscv", features = ["inline-asm"] }
 
 [profile.release]
 debug = true
+
+[features]
+board_qemu = []
+board_k210 = []