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https://github.com/projectacrn/acrn-hypervisor.git
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cdf7796a62
Phony targets are mostly for recipes that are expected to be invoked
directly from the command line as a target and will always be executed. As
a result, it is in most cases not appropriate for a real file target to to
depend on a phony one, as that means the file will always be regenerated.
In the Makefile today, however, dependencies on phony targets are common
and cause the hypervisor to be fully rebuilt regardless of whether an
existing build exists or not.
This patch cleans up the following phony targets which are not meant to be
targets from the command line.
- pre_build: This target has three outputs, namely the prebuild checker,
the ACPI tables for pre-launched VMs and the serial.conf. It is split
into three targets, one for each output.
- headers: This target is an alias of dynamically-generated header
files. It is replaced with a variable so that targets depending on
"header" now depends on the actual header files generated.
With this patch, make will only rebuild modified files and targets
depending on them directly or indirectly.
Tracked-On: #8259
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
56 lines
1.9 KiB
Makefile
56 lines
1.9 KiB
Makefile
HV_OBJDIR ?= $(CURDIR)/build
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HV_CONFIG_H := $(HV_OBJDIR)/include/config.h
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HV_SRC_DIR := ../../hypervisor
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ifneq ($(HV_CONFIG_H), $(wildcard $(HV_CONFIG_H)))
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$(error $(HV_CONFIG_H) does not exist)
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endif
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ifeq ($(BOARD),)
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$(error please specify BOARD for the build!)
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endif
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ifeq ($(SCENARIO),)
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$(error please specify SCENARIO for the build!)
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endif
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ifeq ($(CHECKER_OUT),)
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$(error please specify the path to the generated checker! )
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endif
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BOARD_INFO_DIR := $(HV_OBJDIR)/configs/boards
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SCENARIO_CFG_DIR := $(HV_OBJDIR)/configs/scenarios/$(SCENARIO)
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BOARD_CFG_DIR := $(SCENARIO_CFG_DIR)
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PRE_BUILD_SRCS += main.c
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PRE_BUILD_SRCS += static_checks.c
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PRE_BUILD_SRCS += vm_cfg_checks.c
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PRE_BUILD_SRCS += $(HV_SRC_DIR)/arch/x86/configs/vm_config.c
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PRE_BUILD_SRCS += $(SCENARIO_CFG_DIR)/vm_configurations.c
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PRE_BUILD_SRCS += $(BOARD_CFG_DIR)/pt_intx.c
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ifneq (,$(wildcard $(BOARD_CFG_DIR)/pci_dev.c))
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PRE_BUILD_SRCS += $(BOARD_CFG_DIR)/pci_dev.c
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endif
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PRE_BUILD_CFLAGS += -fno-stack-protector -fno-builtin -W -Wall
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PRE_BUILD_INCLUDE := $(patsubst %, -I %, $(INCLUDE_PATH)) -include $(HV_CONFIG_H) -I .
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.PHONY: default
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default: $(PRE_BUILD_SRCS)
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@echo "SCENARIO <$(SCENARIO)> for BOARD <$(BOARD)> is specified."
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@if [ ! -d $(BOARD_INFO_DIR) ]; then \
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echo "Information of BOARD $(BOARD) is not found."; exit 1; \
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else \
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echo "Found BOARD $(BOARD) information under $(BOARD_INFO_DIR)"; \
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fi;
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@if [ ! -d $(SCENARIO_CFG_DIR) ]; then \
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echo "Configurations for SCENARIO $(SCENARIO) is not found."; exit 1; \
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else \
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echo "Found SCENARIO $(SCENARIO) configurations under $(SCENARIO_CFG_DIR)"; \
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fi;
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@if [ ! -d $(BOARD_CFG_DIR) ]; then \
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echo "$(BOARD) configuration for SCENARIO $(SCENARIO) is not found."; exit 1; \
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else \
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echo "Found $(BOARD) configuration for SCENARIO $(SCENARIO) under $(BOARD_CFG_DIR)"; \
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fi;
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$(CC) $(PRE_BUILD_SRCS) $(PRE_BUILD_INCLUDE) $(PRE_BUILD_CFLAGS) -o $(CHECKER_OUT)
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