310 lines
12 KiB
Makefile
310 lines
12 KiB
Makefile
#
|
|
# Main Project Makefile
|
|
# This Makefile is included directly from the user project Makefile in order to call the component.mk
|
|
# makefiles of all components (in a separate make process) to build all the libraries, then links them
|
|
# together into the final file. If so, PWD is the project dir (we assume).
|
|
#
|
|
|
|
#
|
|
# This makefile requires the environment variable IDF_PATH to be set to the top-level esp-idf directory
|
|
# where this file is located.
|
|
#
|
|
|
|
.PHONY: build-components menuconfig defconfig all build clean all_binaries
|
|
all: all_binaries
|
|
# see below for recipe of 'all' target
|
|
#
|
|
# # other components will add dependencies to 'all_binaries'. The
|
|
# reason all_binaries is used instead of 'all' is so that the flash
|
|
# target can build everything without triggering the per-component "to
|
|
# flash..." output targets.)
|
|
|
|
help:
|
|
@echo "Welcome to Espressif IDF build system. Some useful make targets:"
|
|
@echo ""
|
|
@echo "make menuconfig - Configure IDF project"
|
|
@echo "make defconfig - Set defaults for all new configuration options"
|
|
@echo ""
|
|
@echo "make all - Build app, bootloader, partition table"
|
|
@echo "make flash - Flash all components to a fresh chip"
|
|
@echo "make clean - Remove all build output"
|
|
@echo ""
|
|
@echo "make app - Build just the app"
|
|
@echo "make app-flash - Flash just the app"
|
|
@echo "make app-clean - Clean just the app"
|
|
@echo ""
|
|
@echo "See also 'make bootloader', 'make bootloader-flash', 'make bootloader-clean', "
|
|
@echo "'make partition_table', etc, etc."
|
|
|
|
# disable built-in make rules, makes debugging saner
|
|
MAKEFLAGS_OLD := $(MAKEFLAGS)
|
|
MAKEFLAGS +=-rR
|
|
|
|
# Figure out PROJECT_PATH if not set
|
|
ifeq ("$(PROJECT_PATH)","")
|
|
#The path to the project: we assume the Makefile including this file resides
|
|
#in the root of that directory.
|
|
PROJECT_PATH := $(abspath $(dir $(firstword $(MAKEFILE_LIST))))
|
|
export PROJECT_PATH
|
|
endif
|
|
|
|
#The directory where we put all objects/libraries/binaries. The project Makefile can
|
|
#configure this if needed.
|
|
BUILD_DIR_BASE ?= $(PROJECT_PATH)/build
|
|
export BUILD_DIR_BASE
|
|
|
|
#Component directories. These directories are searched for components.
|
|
#The project Makefile can override these component dirs, or define extra component directories.
|
|
COMPONENT_DIRS ?= $(PROJECT_PATH)/components $(EXTRA_COMPONENT_DIRS) $(IDF_PATH)/components
|
|
export COMPONENT_DIRS
|
|
|
|
#The project Makefile can define a list of components, but if it does not do this we just take
|
|
#all available components in the component dirs.
|
|
ifeq ("$(COMPONENTS)","")
|
|
#Find all component names. The component names are the same as the
|
|
#directories they're in, so /bla/components/mycomponent/ -> mycomponent. We later use
|
|
#the COMPONENT_DIRS bit to find back the component path.
|
|
COMPONENTS := $(foreach dir,$(COMPONENT_DIRS),$(wildcard $(dir)/*))
|
|
COMPONENTS := $(sort $(foreach comp,$(COMPONENTS),$(lastword $(subst /, ,$(comp)))))
|
|
endif
|
|
export COMPONENTS
|
|
|
|
#Sources default to only "main"
|
|
SRCDIRS ?= main
|
|
|
|
#Here, we resolve and add all the components and source paths into absolute paths.
|
|
#If a component exists in multiple COMPONENT_DIRS, we take the first match.
|
|
#WARNING: These directories paths must be generated WITHOUT a trailing / so we
|
|
#can use $(notdir x) to get the component name.
|
|
COMPONENT_PATHS := $(foreach comp,$(COMPONENTS),$(firstword $(foreach dir,$(COMPONENT_DIRS),$(wildcard $(dir)/$(comp)))))
|
|
COMPONENT_PATHS += $(abspath $(SRCDIRS))
|
|
|
|
#A component is buildable if it has a component.mk makefile; we assume that a
|
|
# 'make -C $(component dir) -f component.mk build' results in a lib$(componentname).a
|
|
COMPONENT_PATHS_BUILDABLE := $(foreach cp,$(COMPONENT_PATHS),$(if $(wildcard $(cp)/component.mk),$(cp)))
|
|
|
|
# Assemble global list of include dirs (COMPONENT_INCLUDES), and
|
|
# LDFLAGS args (COMPONENT_LDFLAGS) supplied by each component.
|
|
COMPONENT_INCLUDES :=
|
|
COMPONENT_LDFLAGS :=
|
|
#
|
|
# Also add any inter-component dependencies for each component.
|
|
|
|
# Extract a variable from a child make process
|
|
#
|
|
# $(1) - path to directory to invoke make in
|
|
# $(2) - name of variable to print via the get_variable target (passed in GET_VARIABLE)
|
|
#
|
|
# needs 'sed' processing of stdout because make sometimes echoes other stuff on stdout,
|
|
# even if asked not to.
|
|
#
|
|
# Debugging this? Replace $(shell with $(error and you'll see the full command as-run.
|
|
define GetVariable
|
|
$(shell "$(MAKE)" -s --no-print-directory -C $(1) -f component.mk get_variable PROJECT_PATH=$(PROJECT_PATH) GET_VARIABLE=$(2) | sed -En "s/^$(2)=(.+)/\1/p" )
|
|
endef
|
|
|
|
COMPONENT_INCLUDES := $(abspath $(foreach comp,$(COMPONENT_PATHS_BUILDABLE),$(addprefix $(comp)/, \
|
|
$(call GetVariable,$(comp),COMPONENT_ADD_INCLUDEDIRS))))
|
|
|
|
#Also add project include path, for sdk includes
|
|
COMPONENT_INCLUDES += $(abspath $(BUILD_DIR_BASE)/include/)
|
|
export COMPONENT_INCLUDES
|
|
|
|
#COMPONENT_LDFLAGS has a list of all flags that are needed to link the components together. It's collected
|
|
#in the same way as COMPONENT_INCLUDES is.
|
|
COMPONENT_LDFLAGS := $(foreach comp,$(COMPONENT_PATHS_BUILDABLE), \
|
|
$(call GetVariable,$(comp),COMPONENT_ADD_LDFLAGS))
|
|
export COMPONENT_LDFLAGS
|
|
|
|
# Generate component dependency targets from dependencies lists
|
|
# each component gains a target of its own <name>-build with dependencies
|
|
# of the names of any other components (-build) that need building first
|
|
#
|
|
# the actual targets (that invoke submakes) are generated below by
|
|
# GenerateComponentTarget macro.
|
|
define GenerateComponentDependencies
|
|
# $(1) = component path
|
|
.PHONY: $$(notdir $(1))
|
|
$$(notdir $(1))-build: $(addsuffix -build,$(call GetVariable,$(1),COMPONENT_DEPENDS))
|
|
endef
|
|
$(foreach comp,$(COMPONENT_PATHS_BUILDABLE), $(eval $(call GenerateComponentDependencies,$(comp))))
|
|
|
|
#Make sure submakes can also use this.
|
|
export PROJECT_PATH
|
|
|
|
#Include functionality common to both project & component
|
|
-include $(IDF_PATH)/make/common.mk
|
|
|
|
all:
|
|
ifdef CONFIG_SECURE_BOOTLOADER_ENABLED
|
|
@echo "(Secure boot enabled, so bootloader not flashed automatically. See 'make bootloader' output)"
|
|
@echo "To flash app & partition table, run 'make flash' or:"
|
|
else
|
|
@echo "To flash all build output, run 'make flash' or:"
|
|
endif
|
|
@echo $(ESPTOOLPY_WRITE_FLASH) $(ESPTOOL_ALL_FLASH_ARGS)
|
|
|
|
# Set default LDFLAGS
|
|
|
|
LDFLAGS ?= -nostdlib \
|
|
-L$(IDF_PATH)/lib \
|
|
-L$(IDF_PATH)/ld \
|
|
$(addprefix -L$(BUILD_DIR_BASE)/,$(COMPONENTS) $(SRCDIRS)) \
|
|
-u call_user_start_cpu0 \
|
|
-Wl,--gc-sections \
|
|
-Wl,-static \
|
|
-Wl,--start-group \
|
|
$(COMPONENT_LDFLAGS) \
|
|
-lgcc \
|
|
-Wl,--end-group \
|
|
-Wl,-EL
|
|
|
|
# Set default CPPFLAGS, CFLAGS, CXXFLAGS
|
|
# These are exported so that components can use them when compiling.
|
|
# If you need your component to add CFLAGS/etc for it's own source compilation only, set CFLAGS += in your component's Makefile.
|
|
# If you need your component to add CFLAGS/etc globally for all source
|
|
# files, set CFLAGS += in your component's Makefile.projbuild
|
|
# If you need to set CFLAGS/CPPFLAGS/CXXFLAGS at project level, set them in application Makefile
|
|
# before including project.mk. Default flags will be added before the ones provided in application Makefile.
|
|
|
|
# CPPFLAGS used by C preprocessor
|
|
# If any flags are defined in application Makefile, add them at the end.
|
|
CPPFLAGS := -DESP_PLATFORM $(CPPFLAGS)
|
|
|
|
# Warnings-related flags relevant both for C and C++
|
|
COMMON_WARNING_FLAGS = -Wall -Werror \
|
|
-Wno-error=unused-function \
|
|
-Wno-error=unused-but-set-variable \
|
|
-Wno-error=unused-variable
|
|
|
|
# Flags which control code generation and dependency generation, both for C and C++
|
|
COMMON_FLAGS = \
|
|
-ffunction-sections -fdata-sections \
|
|
-fstrict-volatile-bitfields \
|
|
-mlongcalls \
|
|
-nostdlib \
|
|
-MMD -MP
|
|
|
|
# Optimization flags are set based on menuconfig choice
|
|
ifneq ("$(CONFIG_OPTIMIZATION_LEVEL_RELEASE)","")
|
|
OPTIMIZATION_FLAGS = -Os
|
|
CPPFLAGS += -DNDEBUG
|
|
else
|
|
OPTIMIZATION_FLAGS = -Og
|
|
endif
|
|
|
|
# Enable generation of debugging symbols
|
|
OPTIMIZATION_FLAGS += -ggdb
|
|
|
|
# List of flags to pass to C compiler
|
|
# If any flags are defined in application Makefile, add them at the end.
|
|
CFLAGS := $(strip \
|
|
-std=gnu99 \
|
|
$(OPTIMIZATION_FLAGS) \
|
|
$(COMMON_FLAGS) \
|
|
$(COMMON_WARNING_FLAGS) \
|
|
$(CFLAGS))
|
|
|
|
# List of flags to pass to C++ compiler
|
|
# If any flags are defined in application Makefile, add them at the end.
|
|
CXXFLAGS := $(strip \
|
|
-std=gnu++11 \
|
|
-fno-exceptions \
|
|
-fno-rtti \
|
|
$(OPTIMIZATION_FLAGS) \
|
|
$(COMMON_FLAGS) \
|
|
$(COMMON_WARNING_FLAGS) \
|
|
$(CXXFLAGS))
|
|
|
|
export CFLAGS CPPFLAGS CXXFLAGS
|
|
|
|
#Set host compiler and binutils
|
|
HOSTCC := $(CC)
|
|
HOSTLD := $(LD)
|
|
HOSTAR := $(AR)
|
|
HOSTOBJCOPY := $(OBJCOPY)
|
|
export HOSTCC HOSTLD HOSTAR HOSTOBJCOPY
|
|
|
|
#Set target compiler. Defaults to whatever the user has
|
|
#configured as prefix + yer olde gcc commands
|
|
CC := $(call dequote,$(CONFIG_TOOLPREFIX))gcc
|
|
CXX := $(call dequote,$(CONFIG_TOOLPREFIX))c++
|
|
LD := $(call dequote,$(CONFIG_TOOLPREFIX))ld
|
|
AR := $(call dequote,$(CONFIG_TOOLPREFIX))ar
|
|
OBJCOPY := $(call dequote,$(CONFIG_TOOLPREFIX))objcopy
|
|
export CC CXX LD AR OBJCOPY
|
|
|
|
PYTHON=$(call dequote,$(CONFIG_PYTHON))
|
|
|
|
# the app is the main executable built by the project
|
|
APP_ELF:=$(BUILD_DIR_BASE)/$(PROJECT_NAME).elf
|
|
APP_MAP:=$(APP_ELF:.elf=.map)
|
|
APP_BIN:=$(APP_ELF:.elf=.bin)
|
|
|
|
# Include any Makefile.projbuild file letting components add
|
|
# configuration at the project level
|
|
define includeProjBuildMakefile
|
|
$(if $(V),$(if $(wildcard $(1)/Makefile.projbuild),$(info including $(1)/Makefile.projbuild...)))
|
|
COMPONENT_PATH := $(1)
|
|
-include $(1)/Makefile.projbuild
|
|
endef
|
|
$(foreach componentpath,$(COMPONENT_PATHS),$(eval $(call includeProjBuildMakefile,$(componentpath))))
|
|
|
|
# once we know component paths, we can include the config
|
|
include $(IDF_PATH)/make/project_config.mk
|
|
|
|
# A "component" library is any library in the LDFLAGS where
|
|
# the name of the library is also a name of the component
|
|
APP_LIBRARIES = $(patsubst -l%,%,$(filter -l%,$(LDFLAGS)))
|
|
COMPONENT_LIBRARIES = $(filter $(notdir $(COMPONENT_PATHS_BUILDABLE)),$(APP_LIBRARIES))
|
|
|
|
# ELF depends on the library archive files for COMPONENT_LIBRARIES
|
|
# the rules to build these are emitted as part of GenerateComponentTarget below
|
|
$(APP_ELF): $(foreach libcomp,$(COMPONENT_LIBRARIES),$(BUILD_DIR_BASE)/$(libcomp)/lib$(libcomp).a)
|
|
$(summary) LD $(notdir $@)
|
|
$(Q) $(CC) $(LDFLAGS) -o $@ -Wl,-Map=$(APP_MAP)
|
|
|
|
# Generation of $(APP_BIN) from $(APP_ELF) is added by the esptool
|
|
# component's Makefile.projbuild
|
|
app: $(APP_BIN)
|
|
@echo "App built. Default flash app command is:"
|
|
@echo $(ESPTOOLPY_WRITE_FLASH) $(CONFIG_APP_OFFSET) $(APP_BIN)
|
|
|
|
all_binaries: $(APP_BIN)
|
|
|
|
$(BUILD_DIR_BASE):
|
|
mkdir -p $(BUILD_DIR_BASE)
|
|
|
|
define GenerateComponentPhonyTarget
|
|
# $(1) - path to component dir
|
|
# $(2) - target to generate (build, clean)
|
|
.PHONY: $(notdir $(1))-$(2)
|
|
$(notdir $(1))-$(2): | $(BUILD_DIR_BASE)/$(notdir $(1))
|
|
$(Q) +$(MAKE) -C $(BUILD_DIR_BASE)/$(notdir $(1)) -f $(1)/component.mk COMPONENT_BUILD_DIR=$(BUILD_DIR_BASE)/$(notdir $(1)) $(2)
|
|
endef
|
|
|
|
define GenerateComponentTargets
|
|
# $(1) - path to component dir
|
|
$(BUILD_DIR_BASE)/$(notdir $(1)):
|
|
@mkdir -p $(BUILD_DIR_BASE)/$(notdir $(1))
|
|
|
|
# tell make it can build any component's library by invoking the recursive -build target
|
|
# (this target exists for all components even ones which don't build libraries, but it's
|
|
# only invoked for the targets whose libraries appear in COMPONENT_LIBRARIES and hence the
|
|
# APP_ELF dependencies.)
|
|
$(BUILD_DIR_BASE)/$(notdir $(1))/lib$(notdir $(1)).a: $(notdir $(1))-build
|
|
$(details) "Target '$$^' responsible for '$$@'" # echo which build target built this file
|
|
endef
|
|
|
|
$(foreach component,$(COMPONENT_PATHS_BUILDABLE),$(eval $(call GenerateComponentTargets,$(component))))
|
|
|
|
$(foreach component,$(COMPONENT_PATHS_BUILDABLE),$(eval $(call GenerateComponentPhonyTarget,$(component),build)))
|
|
$(foreach component,$(COMPONENT_PATHS_BUILDABLE),$(eval $(call GenerateComponentPhonyTarget,$(component),clean)))
|
|
|
|
app-clean: $(addsuffix -clean,$(notdir $(COMPONENT_PATHS_BUILDABLE)))
|
|
$(summary) RM $(APP_ELF)
|
|
$(Q) rm -f $(APP_ELF) $(APP_BIN) $(APP_MAP)
|
|
|
|
clean: app-clean
|
|
|
|
|