refactor(make): reorganize targets and improve locking mechanism

1.	Introduce a “project lock” mechanism alongside the existing “build lock”; the lock file is now generated within the platform-specific Makefile.
2.	Set `project` as the default Makefile goal for consistency.
3.	Remove the `standalone` target to improve compatibility, especially when invoked via `make -f`.
4.	Simplify target dependencies for better maintainability and clarity.

generic.mk

@@ -45,7 +45,8 @@ endif
 #                          COMMON INITIALIZATION
 #------------------------------------------------------------------------------
 PLATFORM_TOOLS = $(SCRIPT_DIR)/platform/$(PLATFORM)
-BUILD_LOCK = $(BUILD_DIR)/.project.lock
+BUILD_LOCK = $(BUILD_DIR)/.build.lock
+PROJECT_LOCK = $(BUILD_DIR)/.project.lock
 
 ifeq ('xilinx', '$(PLATFORM)')
     include $(PLATFORM_TOOLS)/xilinx.mk
@@ -56,43 +57,23 @@ endif
 #                             Generic Goals
 #------------------------------------------------------------------------------
 
-.DEFAULT_GOAL := all
-PHONY += all
-ifneq ($(wildcard $(BUILD_LOCK)),)
-all:
-	@$(call print_build_type,$(PLATFORM))
-	$(MAKE) --no-print-directory build
-	@$(call print,Done ($(notdir $(BUILD_DIR))))
-else
-all:
-	@$(call print_build_type,$(PLATFORM))
-	$(MAKE) --no-print-directory project
-	$(MAKE) --no-print-directory build
-	@$(call print,Done ($(notdir $(BUILD_DIR))))
-endif
+PHONY := clean reset project build sdkopen
+.DEFAULT_GOAL := project
 
+# Create project using corresponding SDK
 project: $(PLATFORM)_project
-	@echo "$(TIMESTAMP): Build lock." > $(BUILD_LOCK)
 
-standalone:
-	$(MAKE) --no-print-directory project LINK_SRCS=n
-
-# Build project using generic compiler
-build: $(PLATFORM)_sdkbuild
+# Build project using corresponding compiler
+build: project $(PLATFORM)_sdkbuild
 
 # Open the project using the corresponding SDK
-sdkopen: $(PLATFORM)_sdkopen
+sdkopen: project $(PLATFORM)_sdkopen
 
 # Remove build artefacts
-PHONY += clean
 ifneq ($(wildcard $(BUILD_LOCK)),)
-clean:
-	@$(call log,Cleaning sdk build uploaded to board)
-	$(MAKE) --no-print-directory $(PLATFORM)_sdkclean
+clean: $(PLATFORM)_sdkclean
 else
-clean:
-	@$(call log,No project found, cleaning dummy files)
-	$(MAKE) --no-print-directory reset
+clean: reset
 endif
 
 # Remove the whole build directory

platform/xilinx/xilinx.mk

@@ -7,6 +7,8 @@ define tcl_util
 		 $(CONFIG_FILE) $(BUILD_DIR)
 endef
 
+PHONY += xilinx_reset xilinx_project xilinx_sdkclean xilinx_sdkbuild
+
 xilinx_sdkopen:
 	@$(call log,Launching IDE...)
 	@if [ "$(call check_command,vitis)" = "y" ]; then \
@@ -21,19 +23,22 @@ xilinx_sdkopen:
 		echo "No IDE found!" && exit 1; \
 	fi
 
-PHONY += xilinx_sdkbuild
 xilinx_sdkbuild:
 	@$(call log,[Build] SDK projects in $(BUILD_DIR))
 	$(call tcl_util, build) $(HIDE)
+	@echo "$(TIMESTAMP): Build lock." > $(BUILD_LOCK)
 
 xilinx_sdkclean:
 	@$(call log,[Delete] SDK artefacts from $(BUILD_DIR))
 	$(call tcl_util, clean_project) $(HIDE)
 
-xilinx_project:
-	@$(call print,Creating and configuring the IDE project)
-	$(call mk_dir,$(BUILD_DIR))
+$(XILINX_PROJECT_LOCK):
+	@$(call log,Creating and configuring the IDE project)
+	@$(call cmd_mkdir,$(BUILD_DIR))
 	$(call tcl_util, create_project) $(HIDE)
+	@echo "$(TIMESTAMP): Project lock." > $@
+
+xilinx_project: $(PROJECT_LOCK)
 
 xilinx_reset:
 	$(call cmd_remove,.Xil) $(HIDE)