Add make defconfig & oldconfig, cache AX_ROOT

.gitignore

@@ -2,6 +2,8 @@
 /.vscode
 /.arceos
 /.cargo
+/.axconfig.*
+/.axroot
 .DS_Store
 Cargo.lock
 *.o

Makefile

@@ -1,5 +1,5 @@
 A ?= rust/helloworld
-AX_ROOT ?= $(PWD)/.arceos
+AX_ROOT ?= $(shell cat .axroot 2>/dev/null)
 
 APP := $(A)
 ifeq ($(filter /%,$(A)),)
@@ -8,12 +8,14 @@ ifeq ($(filter /%,$(A)),)
   endif
 endif
 
+$(if $(V), $(info AX_ROOT: "$(AX_ROOT)"))
+
 all: build
 
-ax_root:
+chaxroot:
 	@./scripts/set_ax_root.sh $(AX_ROOT)
 
-build run justrun debug disasm disk_img clean clean_c: ax_root
+defconfig oldconfig build run justrun debug disasm disk_img clean clean_c:
 	@make -C $(AX_ROOT) A=$(APP) $@
 
 test:

scripts/get_deps.sh

@@ -5,7 +5,4 @@ AX_ROOT=.arceos
 test ! -d "$AX_ROOT" && echo "Cloning repositories ..." || true
 test ! -d "$AX_ROOT" && git clone https://github.com/arceos-org/arceos "$AX_ROOT" --depth=1 || true
 
-echo "Copying Cargo.lock ..."
-cp "$AX_ROOT/Cargo.lock" Cargo.lock
-
 $(dirname $0)/set_ax_root.sh $AX_ROOT

scripts/set_ax_root.sh

@@ -11,3 +11,6 @@ mkdir -p .cargo
 sed -e "s|%AX_ROOT%|$AX_ROOT|g" scripts/config.toml.temp > .cargo/config.toml
 
 echo "Set AX_ROOT (ArceOS directory) to $AX_ROOT"
+
+cp "$AX_ROOT/Cargo.lock" Cargo.lock
+echo "$1" > .axroot