mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
cdc7396f97
For example, SRCDIRS = comp_a happy/comp_b /c/dev/comp_c Then the following are built: build/comp_a/libcomp_a.a build/comp_b/libcomp_b.a build/comp_c/libcomp_c.a But when LD is run the -L is calculated as follows -L build/comp_a -L build/happy/comp_b -L build//c/dev/comp_c This means comp_b and comp_c are not found by LD. With this change set -L is calculated correctly for comp_b and comp_c Merges #504 https://github.com/espressif/esp-idf/pull/504
463 lines
19 KiB
Makefile
463 lines
19 KiB
Makefile
#
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# Main Project Makefile
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# This Makefile is included directly from the user project Makefile in order to call the component.mk
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# makefiles of all components (in a separate make process) to build all the libraries, then links them
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# together into the final file. If so, PWD is the project dir (we assume).
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#
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#
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# This makefile requires the environment variable IDF_PATH to be set to the top-level esp-idf directory
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# where this file is located.
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#
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.PHONY: build-components menuconfig defconfig all build clean all_binaries check-submodules size
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all: all_binaries
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# see below for recipe of 'all' target
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#
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# # other components will add dependencies to 'all_binaries'. The
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# reason all_binaries is used instead of 'all' is so that the flash
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# target can build everything without triggering the per-component "to
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# flash..." output targets.)
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help:
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@echo "Welcome to Espressif IDF build system. Some useful make targets:"
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@echo ""
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@echo "make menuconfig - Configure IDF project"
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@echo "make defconfig - Set defaults for all new configuration options"
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@echo ""
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@echo "make all - Build app, bootloader, partition table"
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@echo "make flash - Flash app, bootloader, partition table to a chip"
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@echo "make clean - Remove all build output"
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@echo "make size - Display the memory footprint of the app"
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@echo "make erase_flash - Erase entire flash contents"
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@echo "make monitor - Run idf_monitor tool to monitor serial output from app"
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@echo "make simple_monitor - Monitor serial output on terminal console"
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@echo ""
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@echo "make app - Build just the app"
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@echo "make app-flash - Flash just the app"
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@echo "make app-clean - Clean just the app"
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@echo ""
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@echo "See also 'make bootloader', 'make bootloader-flash', 'make bootloader-clean', "
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@echo "'make partition_table', etc, etc."
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# dependency checks
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ifndef MAKE_RESTARTS
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ifeq ("$(filter 4.% 3.81 3.82,$(MAKE_VERSION))","")
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$(warning "esp-idf build system only supports GNU Make versions 3.81 or newer. You may see unexpected results with other Makes.")
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endif
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endif
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# make IDF_PATH a "real" absolute path
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# * works around the case where a shell character is embedded in the environment variable value.
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# * changes Windows-style C:/blah/ paths to MSYS/Cygwin style /c/blah
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ifeq ("$(OS)","Windows_NT")
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# On Windows MSYS2, make wildcard function returns empty string for paths of form /xyz
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# where /xyz is a directory inside the MSYS root - so we don't use it.
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SANITISED_IDF_PATH:=$(realpath $(IDF_PATH))
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else
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SANITISED_IDF_PATH:=$(realpath $(wildcard $(IDF_PATH)))
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endif
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export IDF_PATH := $(SANITISED_IDF_PATH)
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ifndef IDF_PATH
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$(error IDF_PATH variable is not set to a valid directory.)
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endif
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ifneq ("$(IDF_PATH)","$(SANITISED_IDF_PATH)")
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# implies IDF_PATH was overriden on make command line.
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# Due to the way make manages variables, this is hard to account for
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#
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# if you see this error, do the shell expansion in the shell ie
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# make IDF_PATH=~/blah not make IDF_PATH="~/blah"
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$(error If IDF_PATH is overriden on command line, it must be an absolute path with no embedded shell special characters)
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endif
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ifneq ("$(IDF_PATH)","$(subst :,,$(IDF_PATH))")
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$(error IDF_PATH cannot contain colons. If overriding IDF_PATH on Windows, use Cygwin-style /c/dir instead of C:/dir)
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endif
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# disable built-in make rules, makes debugging saner
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MAKEFLAGS_OLD := $(MAKEFLAGS)
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MAKEFLAGS +=-rR
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# Default path to the project: we assume the Makefile including this file
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# is in the project directory
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ifndef PROJECT_PATH
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PROJECT_PATH := $(abspath $(dir $(firstword $(MAKEFILE_LIST))))
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export PROJECT_PATH
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endif
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# A list of the "common" makefiles, to use as a target dependency
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COMMON_MAKEFILES := $(abspath $(IDF_PATH)/make/project.mk $(IDF_PATH)/make/common.mk $(IDF_PATH)/make/component_wrapper.mk)
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export COMMON_MAKEFILES
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# The directory where we put all objects/libraries/binaries. The project Makefile can
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# configure this if needed.
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BUILD_DIR_BASE ?= $(PROJECT_PATH)/build
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export BUILD_DIR_BASE
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# Component directories. These directories are searched for components.
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# The project Makefile can override these component dirs, or define extra component directories.
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COMPONENT_DIRS ?= $(PROJECT_PATH)/components $(EXTRA_COMPONENT_DIRS) $(IDF_PATH)/components
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export COMPONENT_DIRS
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# Source directories of the project itself (a special, project-specific component.) Defaults to only "main".
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SRCDIRS ?= main
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# The project Makefile can define a list of components, but if it does not do this we just take
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# all available components in the component dirs.
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ifndef COMPONENTS
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# Find all component names. The component names are the same as the
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# directories they're in, so /bla/components/mycomponent/ -> mycomponent. We then use
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# COMPONENT_DIRS to build COMPONENT_PATHS with the full path to each component.
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COMPONENTS := $(foreach dir,$(COMPONENT_DIRS),$(wildcard $(dir)/*))
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COMPONENTS := $(sort $(foreach comp,$(COMPONENTS),$(lastword $(subst /, ,$(comp)))))
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endif
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export COMPONENTS
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# Resolve all of COMPONENTS into absolute paths in COMPONENT_PATHS.
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#
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# If a component name exists in multiple COMPONENT_DIRS, we take the first match.
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#
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# NOTE: These paths must be generated WITHOUT a trailing / so we
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# can use $(notdir x) to get the component name.
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COMPONENT_PATHS := $(foreach comp,$(COMPONENTS),$(firstword $(foreach dir,$(COMPONENT_DIRS),$(wildcard $(dir)/$(comp)))))
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COMPONENT_PATHS += $(abspath $(SRCDIRS))
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# A component is buildable if it has a component.mk makefile in it
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COMPONENT_PATHS_BUILDABLE := $(foreach cp,$(COMPONENT_PATHS),$(if $(wildcard $(cp)/component.mk),$(cp)))
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# If TESTS_ALL set to 1, set TEST_COMPONENTS_LIST to all components
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ifeq ($(TESTS_ALL),1)
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TEST_COMPONENTS_LIST := $(COMPONENTS)
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else
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# otherwise, use TEST_COMPONENTS
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TEST_COMPONENTS_LIST := $(TEST_COMPONENTS)
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endif
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TEST_COMPONENT_PATHS := $(foreach comp,$(TEST_COMPONENTS_LIST),$(firstword $(foreach dir,$(COMPONENT_DIRS),$(wildcard $(dir)/$(comp)/test))))
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TEST_COMPONENT_NAMES := $(foreach comp,$(TEST_COMPONENT_PATHS),$(lastword $(subst /, ,$(dir $(comp))))_test)
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# Initialise project-wide variables which can be added to by
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# each component.
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#
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# These variables are built up via the component_project_vars.mk
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# generated makefiles (one per component).
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#
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# See docs/build-system.rst for more details.
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COMPONENT_INCLUDES :=
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COMPONENT_LDFLAGS :=
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COMPONENT_SUBMODULES :=
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# COMPONENT_PROJECT_VARS is the list of component_project_vars.mk generated makefiles
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# for each component.
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#
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# Including $(COMPONENT_PROJECT_VARS) builds the COMPONENT_INCLUDES,
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# COMPONENT_LDFLAGS variables and also targets for any inter-component
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# dependencies.
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#
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# See the component_project_vars.mk target in component_wrapper.mk
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COMPONENT_PROJECT_VARS := $(addsuffix /component_project_vars.mk,$(notdir $(COMPONENT_PATHS_BUILDABLE) ) $(TEST_COMPONENT_NAMES))
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COMPONENT_PROJECT_VARS := $(addprefix $(BUILD_DIR_BASE)/,$(COMPONENT_PROJECT_VARS))
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# this line is -include instead of include to prevent a spurious error message on make 3.81
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-include $(COMPONENT_PROJECT_VARS)
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# Also add top-level project include path, for top-level includes
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COMPONENT_INCLUDES += $(abspath $(BUILD_DIR_BASE)/include/)
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export COMPONENT_INCLUDES
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# Set variables common to both project & component
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include $(IDF_PATH)/make/common.mk
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all:
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ifdef CONFIG_SECURE_BOOT_ENABLED
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@echo "(Secure boot enabled, so bootloader not flashed automatically. See 'make bootloader' output)"
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ifndef CONFIG_SECURE_BOOT_BUILD_SIGNED_BINARIES
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@echo "App built but not signed. Sign app & partition data before flashing, via espsecure.py:"
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@echo "espsecure.py sign_data --keyfile KEYFILE $(APP_BIN)"
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@echo "espsecure.py sign_data --keyfile KEYFILE $(PARTITION_TABLE_BIN)"
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endif
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@echo "To flash app & partition table, run 'make flash' or:"
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else
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@echo "To flash all build output, run 'make flash' or:"
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endif
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@echo $(ESPTOOLPY_WRITE_FLASH) $(ESPTOOL_ALL_FLASH_ARGS)
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IDF_VER := $(shell cd ${IDF_PATH} && git describe --always --tags --dirty)
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# Set default LDFLAGS
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SRCDIRS_COMPONENT_NAMES := $(sort $(foreach comp,$(SRCDIRS),$(lastword $(subst /, ,$(comp)))))
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LDFLAGS ?= -nostdlib \
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$(addprefix -L$(BUILD_DIR_BASE)/,$(COMPONENTS) $(TEST_COMPONENT_NAMES) $(SRCDIRS_COMPONENT_NAMES) ) \
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-u call_user_start_cpu0 \
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$(EXTRA_LDFLAGS) \
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-Wl,--gc-sections \
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-Wl,-static \
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-Wl,--start-group \
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$(COMPONENT_LDFLAGS) \
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-lgcc \
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-lstdc++ \
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-Wl,--end-group \
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-Wl,-EL
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# Set default CPPFLAGS, CFLAGS, CXXFLAGS
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# These are exported so that components can use them when compiling.
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# If you need your component to add CFLAGS/etc for it's own source compilation only, set CFLAGS += in your component's Makefile.
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# If you need your component to add CFLAGS/etc globally for all source
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# files, set CFLAGS += in your component's Makefile.projbuild
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# If you need to set CFLAGS/CPPFLAGS/CXXFLAGS at project level, set them in application Makefile
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# before including project.mk. Default flags will be added before the ones provided in application Makefile.
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# CPPFLAGS used by C preprocessor
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# If any flags are defined in application Makefile, add them at the end.
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CPPFLAGS := -DESP_PLATFORM -D IDF_VER=\"$(IDF_VER)\" -MMD -MP $(CPPFLAGS) $(EXTRA_CPPFLAGS)
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# Warnings-related flags relevant both for C and C++
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COMMON_WARNING_FLAGS = -Wall -Werror=all \
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-Wno-error=unused-function \
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-Wno-error=unused-but-set-variable \
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-Wno-error=unused-variable \
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-Wno-error=deprecated-declarations \
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-Wextra \
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-Wno-unused-parameter -Wno-sign-compare
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# Flags which control code generation and dependency generation, both for C and C++
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COMMON_FLAGS = \
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-ffunction-sections -fdata-sections \
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-fstrict-volatile-bitfields \
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-mlongcalls \
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-nostdlib
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# Optimization flags are set based on menuconfig choice
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ifneq ("$(CONFIG_OPTIMIZATION_LEVEL_RELEASE)","")
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OPTIMIZATION_FLAGS = -Os
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CPPFLAGS += -DNDEBUG
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else
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OPTIMIZATION_FLAGS = -Og
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endif
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# Enable generation of debugging symbols
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# (we generate even in Release mode, as this has no impact on final binary size.)
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DEBUG_FLAGS ?= -ggdb
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# List of flags to pass to C compiler
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# If any flags are defined in application Makefile, add them at the end.
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CFLAGS := $(strip \
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-std=gnu99 \
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$(OPTIMIZATION_FLAGS) $(DEBUG_FLAGS) \
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$(COMMON_FLAGS) \
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$(COMMON_WARNING_FLAGS) -Wno-old-style-declaration \
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$(CFLAGS) \
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$(EXTRA_CFLAGS))
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# List of flags to pass to C++ compiler
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# If any flags are defined in application Makefile, add them at the end.
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CXXFLAGS := $(strip \
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-std=gnu++11 \
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-fno-exceptions \
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-fno-rtti \
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$(OPTIMIZATION_FLAGS) $(DEBUG_FLAGS) \
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$(COMMON_FLAGS) \
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$(COMMON_WARNING_FLAGS) \
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$(CXXFLAGS) \
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$(EXTRA_CXXFLAGS))
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export CFLAGS CPPFLAGS CXXFLAGS
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# Set host compiler and binutils
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HOSTCC := $(CC)
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HOSTLD := $(LD)
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HOSTAR := $(AR)
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HOSTOBJCOPY := $(OBJCOPY)
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HOSTSIZE := $(SIZE)
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export HOSTCC HOSTLD HOSTAR HOSTOBJCOPY SIZE
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# Set target compiler. Defaults to whatever the user has
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# configured as prefix + ye olde gcc commands
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CC := $(call dequote,$(CONFIG_TOOLPREFIX))gcc
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CXX := $(call dequote,$(CONFIG_TOOLPREFIX))c++
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LD := $(call dequote,$(CONFIG_TOOLPREFIX))ld
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AR := $(call dequote,$(CONFIG_TOOLPREFIX))ar
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OBJCOPY := $(call dequote,$(CONFIG_TOOLPREFIX))objcopy
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SIZE := $(call dequote,$(CONFIG_TOOLPREFIX))size
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export CC CXX LD AR OBJCOPY SIZE
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PYTHON=$(call dequote,$(CONFIG_PYTHON))
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# the app is the main executable built by the project
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APP_ELF:=$(BUILD_DIR_BASE)/$(PROJECT_NAME).elf
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APP_MAP:=$(APP_ELF:.elf=.map)
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APP_BIN:=$(APP_ELF:.elf=.bin)
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# Include any Makefile.projbuild file letting components add
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# configuration at the project level
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define includeProjBuildMakefile
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$(if $(V),$(if $(wildcard $(1)/Makefile.projbuild),$(info including $(1)/Makefile.projbuild...)))
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COMPONENT_PATH := $(1)
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-include $(1)/Makefile.projbuild
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endef
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$(foreach componentpath,$(COMPONENT_PATHS),$(eval $(call includeProjBuildMakefile,$(componentpath))))
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# once we know component paths, we can include the config generation targets
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#
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# (bootloader build doesn't need this, config is exported from top-level)
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ifndef IS_BOOTLOADER_BUILD
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include $(IDF_PATH)/make/project_config.mk
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endif
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# A "component" library is any library in the LDFLAGS where
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# the name of the library is also a name of the component
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APP_LIBRARIES = $(patsubst -l%,%,$(filter -l%,$(LDFLAGS)))
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COMPONENT_LIBRARIES = $(filter $(notdir $(COMPONENT_PATHS_BUILDABLE)) $(TEST_COMPONENT_NAMES),$(APP_LIBRARIES))
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# ELF depends on the library archive files for COMPONENT_LIBRARIES
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# the rules to build these are emitted as part of GenerateComponentTarget below
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#
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# also depends on additional dependencies (linker scripts & binary libraries)
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# stored in COMPONENT_LINKER_DEPS, built via component.mk files' COMPONENT_ADD_LINKER_DEPS variable
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$(APP_ELF): $(foreach libcomp,$(COMPONENT_LIBRARIES),$(BUILD_DIR_BASE)/$(libcomp)/lib$(libcomp).a) $(COMPONENT_LINKER_DEPS)
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$(summary) LD $(notdir $@)
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$(CC) $(LDFLAGS) -o $@ -Wl,-Map=$(APP_MAP)
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# Generation of $(APP_BIN) from $(APP_ELF) is added by the esptool
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# component's Makefile.projbuild
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app: $(APP_BIN)
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ifeq ("$(CONFIG_SECURE_BOOT_ENABLED)$(CONFIG_SECURE_BOOT_BUILD_SIGNED_BINARIES)","y") # secure boot enabled, but remote sign app image
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@echo "App built but not signed. Signing step via espsecure.py:"
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@echo "espsecure.py sign_data --keyfile KEYFILE $(APP_BIN)"
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@echo "Then flash app command is:"
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@echo $(ESPTOOLPY_WRITE_FLASH) $(CONFIG_APP_OFFSET) $(APP_BIN)
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else
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@echo "App built. Default flash app command is:"
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@echo $(ESPTOOLPY_WRITE_FLASH) $(CONFIG_APP_OFFSET) $(APP_BIN)
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endif
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all_binaries: $(APP_BIN)
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$(BUILD_DIR_BASE):
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mkdir -p $(BUILD_DIR_BASE)
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# Macro for the recursive sub-make for each component
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# $(1) - component directory
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# $(2) - component name only
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#
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# Is recursively expanded by the GenerateComponentTargets macro
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define ComponentMake
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+$(MAKE) -C $(BUILD_DIR_BASE)/$(2) -f $(IDF_PATH)/make/component_wrapper.mk COMPONENT_MAKEFILE=$(1)/component.mk COMPONENT_NAME=$(2)
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endef
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# Generate top-level component-specific targets for each component
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# $(1) - path to component dir
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# $(2) - name of component
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#
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define GenerateComponentTargets
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.PHONY: $(2)-build $(2)-clean
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$(2)-build: check-submodules
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$(call ComponentMake,$(1),$(2)) build
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$(2)-clean:
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$(call ComponentMake,$(1),$(2)) clean
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$(BUILD_DIR_BASE)/$(2):
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@mkdir -p $(BUILD_DIR_BASE)/$(2)
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# tell make it can build any component's library by invoking the -build target
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# (this target exists for all components even ones which don't build libraries, but it's
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# only invoked for the targets whose libraries appear in COMPONENT_LIBRARIES and hence the
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# APP_ELF dependencies.)
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$(BUILD_DIR_BASE)/$(2)/lib$(2).a: $(2)-build
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$(details) "Target '$$^' responsible for '$$@'" # echo which build target built this file
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# add a target to generate the component_project_vars.mk files that
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# are used to inject variables into project make pass (see matching
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# component_project_vars.mk target in component_wrapper.mk).
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#
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# If any component_project_vars.mk file is out of date, the make
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# process will call this target to rebuild it and then restart.
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#
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$(BUILD_DIR_BASE)/$(2)/component_project_vars.mk: $(1)/component.mk $(COMMON_MAKEFILES) $(SDKCONFIG_MAKEFILE) | $(BUILD_DIR_BASE)/$(2)
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$(call ComponentMake,$(1),$(2)) component_project_vars.mk
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endef
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$(foreach component,$(COMPONENT_PATHS_BUILDABLE),$(eval $(call GenerateComponentTargets,$(component),$(notdir $(component)))))
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$(foreach component,$(TEST_COMPONENT_PATHS),$(eval $(call GenerateComponentTargets,$(component),$(lastword $(subst /, ,$(dir $(component))))_test)))
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app-clean: $(addsuffix -clean,$(notdir $(COMPONENT_PATHS_BUILDABLE)))
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$(summary) RM $(APP_ELF)
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rm -f $(APP_ELF) $(APP_BIN) $(APP_MAP)
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size: $(APP_ELF)
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$(SIZE) $(APP_ELF)
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# NB: this ordering is deliberate (app-clean before config-clean),
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# so config remains valid during all component clean targets
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config-clean: app-clean
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clean: config-clean
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# phony target to check if any git submodule listed in COMPONENT_SUBMODULES are missing
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# or out of date, and exit if so. Components can add paths to this variable.
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#
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# This only works for components inside IDF_PATH
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check-submodules:
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# Dump the git status for the whole working copy once, then grep it for each submodule. This saves a lot of time on Windows.
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GIT_STATUS := $(shell cd ${IDF_PATH} && git status --porcelain --ignore-submodules=dirty)
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# Generate a target to check this submodule
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# $(1) - submodule directory, relative to IDF_PATH
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define GenerateSubmoduleCheckTarget
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check-submodules: $(IDF_PATH)/$(1)/.git
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$(IDF_PATH)/$(1)/.git:
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@echo "WARNING: Missing submodule $(1)..."
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[ -e ${IDF_PATH}/.git ] || ( echo "ERROR: esp-idf must be cloned from git to work."; exit 1)
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|
[ -x $(which git) ] || ( echo "ERROR: Need to run 'git submodule init $(1)' in esp-idf root directory."; exit 1)
|
|
@echo "Attempting 'git submodule update --init $(1)' in esp-idf root directory..."
|
|
cd ${IDF_PATH} && git submodule update --init $(1)
|
|
|
|
# Parse 'git status' output to check if the submodule commit is different to expected
|
|
ifneq ("$(filter $(1),$(GIT_STATUS))","")
|
|
$$(info WARNING: esp-idf git submodule $(1) may be out of date. Run 'git submodule update' in IDF_PATH dir to update.)
|
|
endif
|
|
endef
|
|
|
|
# filter/subst in expression ensures all submodule paths begin with $(IDF_PATH), and then strips that prefix
|
|
# so the argument is suitable for use with 'git submodule' commands
|
|
$(foreach submodule,$(subst $(IDF_PATH)/,,$(filter $(IDF_PATH)/%,$(COMPONENT_SUBMODULES))),$(eval $(call GenerateSubmoduleCheckTarget,$(submodule))))
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|
|
|
|
|
# Check toolchain version using the output of xtensa-esp32-elf-gcc --version command.
|
|
# The output normally looks as follows
|
|
# xtensa-esp32-elf-gcc (crosstool-NG crosstool-ng-1.22.0-59-ga194053) 4.8.5
|
|
# The part in brackets is extracted into TOOLCHAIN_COMMIT_DESC variable,
|
|
# the part after the brackets is extracted into TOOLCHAIN_GCC_VER.
|
|
ifdef CONFIG_TOOLPREFIX
|
|
ifndef MAKE_RESTARTS
|
|
TOOLCHAIN_COMMIT_DESC := $(shell $(CC) --version | sed -E -n 's|xtensa-esp32-elf-gcc.*\ \(([^)]*).*|\1|gp')
|
|
TOOLCHAIN_GCC_VER := $(shell $(CC) --version | sed -E -n 's|xtensa-esp32-elf-gcc.*\ \(.*\)\ (.*)|\1|gp')
|
|
|
|
# Officially supported version(s)
|
|
SUPPORTED_TOOLCHAIN_COMMIT_DESC := crosstool-NG crosstool-ng-1.22.0-61-gab8375a
|
|
SUPPORTED_TOOLCHAIN_GCC_VERSIONS := 5.2.0
|
|
|
|
ifdef TOOLCHAIN_COMMIT_DESC
|
|
ifneq ($(TOOLCHAIN_COMMIT_DESC), $(SUPPORTED_TOOLCHAIN_COMMIT_DESC))
|
|
$(info WARNING: Toolchain version is not supported: $(TOOLCHAIN_COMMIT_DESC))
|
|
$(info Expected to see version: $(SUPPORTED_TOOLCHAIN_COMMIT_DESC))
|
|
$(info Please check ESP-IDF setup instructions and update the toolchain, or proceed at your own risk.)
|
|
endif
|
|
ifeq (,$(findstring $(TOOLCHAIN_GCC_VER), $(SUPPORTED_TOOLCHAIN_GCC_VERSIONS)))
|
|
$(info WARNING: Compiler version is not supported: $(TOOLCHAIN_GCC_VER))
|
|
$(info Expected to see version(s): $(SUPPORTED_TOOLCHAIN_GCC_VERSIONS))
|
|
$(info Please check ESP-IDF setup instructions and update the toolchain, or proceed at your own risk.)
|
|
endif
|
|
else
|
|
$(info WARNING: Failed to find Xtensa toolchain, may need to alter PATH or set one in the configuration menu)
|
|
endif # TOOLCHAIN_COMMIT_DESC
|
|
|
|
endif #MAKE_RESTARTS
|
|
endif #CONFIG_TOOLPREFIX
|