309 lines
11 KiB
Makefile
309 lines
11 KiB
Makefile
# esp-open-rtos common Makefile
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#
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# ******************************************************************
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# Run 'make help' in any example subdirectory to see a usage summary
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# (or skip to the bottom of this file!)
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#
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# For example, from the top level run:
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# make help -C examples/http_get
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# ******************************************************************
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#
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# In-depth documentation is at https://github.com/SuperHouse/esp-open-rtos/wiki/Build-Process
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#
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# Most sections Copyright 2015 Superhouse Automation Pty Ltd
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# BSD Licensed as described in the file LICENSE at top level.
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#
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# This makefile is adapted from the esp-mqtt makefile by @tuanpmt
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# https://github.com/tuanpmt/esp_mqtt, but it has changed very significantly
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# since then.
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# assume the 'root' directory (ie top of the tree) is the directory common.mk is in
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ROOT := $(dir $(lastword $(MAKEFILE_LIST)))
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include $(ROOT)parameters.mk
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ifndef PROGRAM
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$(error "Set the PROGRAM environment variable in your Makefile before including common.mk")
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endif
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# hacky way to get a single space value
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empty :=
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space := $(empty) $(empty)
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# GNU Make lowercase function, bit of a horrorshow but works (courtesy http://stackoverflow.com/a/665045)
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lc = $(subst A,a,$(subst B,b,$(subst C,c,$(subst D,d,$(subst E,e,$(subst F,f,$(subst G,g,$(subst H,h,$(subst I,i,$(subst J,j,$(subst K,k,$(subst L,l,$(subst M,m,$(subst N,n,$(subst O,o,$(subst P,p,$(subst Q,q,$(subst R,r,$(subst S,s,$(subst T,t,$(subst U,u,$(subst V,v,$(subst W,w,$(subst X,x,$(subst Y,y,$(subst Z,z,$1))))))))))))))))))))))))))
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# assume the program dir is the directory the top-level makefile was run in
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PROGRAM_DIR := $(dir $(firstword $(MAKEFILE_LIST)))
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# derive various parts of compiler/linker arguments
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SDK_LIB_ARGS = $(addprefix -l,$(SDK_LIBS))
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LIB_ARGS = $(addprefix -l,$(LIBS))
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PROGRAM_OUT = $(BUILD_DIR)$(PROGRAM).out
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LDFLAGS += $(addprefix -T,$(LINKER_SCRIPTS))
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FW_FILE = $(addprefix $(FIRMWARE_DIR),$(PROGRAM).bin)
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# Common include directories, shared across all "components"
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# components will add their include directories to this argument
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#
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# Placing $(PROGRAM_DIR) and $(PROGRAM_DIR)include first allows
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# programs to have their own copies of header config files for components
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# , which is useful for overriding things.
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INC_DIRS = $(PROGRAM_DIR) $(PROGRAM_DIR)include $(ROOT)include
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ifeq ($(OWN_LIBC),1)
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INC_DIRS += $(ROOT)libc/xtensa-lx106-elf/include
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LDFLAGS += -L$(ROOT)libc/xtensa-lx106-elf/lib
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ifeq ($(PRINTF_SCANF_FLOAT_SUPPORT),1)
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LDFLAGS += -u _printf_float -u _scanf_float
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endif
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endif
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ifeq ("$(V)","1")
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Q :=
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vecho := @true
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else
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Q := @
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vecho := @echo
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endif
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.PHONY: all clean flash erase_flash test size rebuild
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all: $(PROGRAM_OUT) $(FW_FILE_1) $(FW_FILE_2) $(FW_FILE)
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# component_compile_rules: Produces compilation rules for a given
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# component
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#
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# For user-facing documentation, see:
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# https://github.com/SuperHouse/esp-open-rtos/wiki/Build-Process#adding-a-new-component
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#
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# Call arguments are:
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# $(1) - component name
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#
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# Expects that the following component-specific variables are defined:
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#
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# $(1)_ROOT = Top-level dir containing component. Can be in-tree or out-of-tree.
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# (if this variable isn't defined, directory containing component.mk is used)
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# $(1)_SRC_DIR = List of source directories for the component. All must be under $(1)_ROOT
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# $(1)_INC_DIR = List of include directories specific for the component
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#
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#
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# Each call appends to COMPONENT_ARS or WHOLE_ARCHIVES which are lists of archive files for compiled components
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COMPONENT_ARS =
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WHOLE_ARCHIVES =
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define component_compile_rules
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$(1)_DEFAULT_ROOT := $(dir $(lastword $(MAKEFILE_LIST)))
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$(1)_ROOT ?= $$($(1)_DEFAULT_ROOT)
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$(1)_OBJ_DIR = $(call lc,$(BUILD_DIR)$(1)/)
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### determine source files and object files ###
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$(1)_SRC_FILES ?= $$(foreach sdir,$$($(1)_SRC_DIR), \
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$$(wildcard $$(sdir)/*.c) $$(wildcard $$(sdir)/*.S) \
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$$(wildcard $$(sdir)/*.cpp)) \
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$$($(1)_EXTRA_SRC_FILES)
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$(1)_REAL_SRC_FILES = $$(foreach sfile,$$($(1)_SRC_FILES),$$(realpath $$(sfile)))
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$(1)_REAL_ROOT = $$(realpath $$($(1)_ROOT))
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# patsubst here substitutes real component root path for the relative OBJ_DIR path, making things short again
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$(1)_OBJ_FILES_CXX = $$(patsubst $$($(1)_REAL_ROOT)%.cpp,$$($(1)_OBJ_DIR)%.o,$$($(1)_REAL_SRC_FILES))
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$(1)_OBJ_FILES_C = $$(patsubst $$($(1)_REAL_ROOT)%.c,$$($(1)_OBJ_DIR)%.o,$$($(1)_OBJ_FILES_CXX))
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$(1)_OBJ_FILES = $$(patsubst $$($(1)_REAL_ROOT)%.S,$$($(1)_OBJ_DIR)%.o,$$($(1)_OBJ_FILES_C))
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# the last included makefile is our component's component.mk makefile (rebuild the component if it changes)
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$(1)_MAKEFILE ?= $(lastword $(MAKEFILE_LIST))
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### determine compiler arguments ###
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$(1)_CPPFLAGS ?= $(CPPFLAGS)
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$(1)_CFLAGS ?= $(CFLAGS)
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$(1)_CXXFLAGS ?= $(CXXFLAGS)
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$(1)_CC_BASE = $(Q) $(CC) $$(addprefix -I,$$(INC_DIRS)) $$(addprefix -I,$$($(1)_INC_DIR)) $$($(1)_CPPFLAGS)
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$(1)_AR = $(call lc,$(BUILD_DIR)$(1).a)
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$$($(1)_OBJ_DIR)%.o: $$($(1)_REAL_ROOT)%.c $$($(1)_MAKEFILE) $(wildcard $(ROOT)*.mk) | $$($(1)_SRC_DIR)
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$(vecho) "CC $$<"
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$(Q) mkdir -p $$(dir $$@)
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$$($(1)_CC_BASE) $$($(1)_CFLAGS) -c $$< -o $$@
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$$($(1)_CC_BASE) $$($(1)_CFLAGS) -MM -MT $$@ -MF $$(@:.o=.d) $$<
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$$($(1)_OBJ_DIR)%.o: $$($(1)_REAL_ROOT)%.cpp $$($(1)_MAKEFILE) $(wildcard $(ROOT)*.mk) | $$($(1)_SRC_DIR)
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$(vecho) "C++ $$<"
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$(Q) mkdir -p $$(dir $$@)
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$$($(1)_CC_BASE) $$($(1)_CXXFLAGS) -c $$< -o $$@
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$$($(1)_CC_BASE) $$($(1)_CXXFLAGS) -MM -MT $$@ -MF $$(@:.o=.d) $$<
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$$($(1)_OBJ_DIR)%.o: $$($(1)_REAL_ROOT)%.S $$($(1)_MAKEFILE) $(wildcard $(ROOT)*.mk) | $$($(1)_SRC_DIR)
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$(vecho) "AS $$<"
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$(Q) mkdir -p $$(dir $$@)
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$$($(1)_CC_BASE) -c $$< -o $$@
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$$($(1)_CC_BASE) -MM -MT $$@ -MF $$(@:.o=.d) $$<
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$(1)_AR_IN_FILES = $$($(1)_OBJ_FILES)
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# The component is shown to depend on both obj and source files so we get
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# a meaningful error message for missing explicitly named source files.
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# But do not include source files into a static library because when adding this
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# library with '--whole-archive' linker gives error that archive contains
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# unknown objects (source files)
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ifndef $(1)_WHOLE_ARCHIVE
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$(1)_AR_IN_FILES += $$($(1)_SRC_FILES)
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endif
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$$($(1)_AR): $$($(1)_AR_IN_FILES)
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$(vecho) "AR $$@"
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$(Q) mkdir -p $$(dir $$@)
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$(Q) $(AR) cru $$@ $$^
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ifdef $(1)_WHOLE_ARCHIVE
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WHOLE_ARCHIVES += $$($(1)_AR)
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else
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COMPONENT_ARS += $$($(1)_AR)
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endif
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-include $$($(1)_OBJ_FILES:.o=.d)
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endef
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# Remove comment lines from libgcc.remove file
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$(BUILD_DIR)libgcc.remove: $(ROOT)lib/libgcc.remove | $(BUILD_DIR)
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$(Q) grep -v "^#" $< | cat > $@
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# Remove unwanted object files listed in libgcc.remove
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$(BUILD_DIR)libgcc.a: $(ROOT)lib/libgcc.a $(BUILD_DIR)libgcc.remove | $(BUILD_DIR)
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@echo "Removing unwanted objects from $<"
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$(Q) cat $< > $@
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$(Q) $(AR) d $@ @$(word 2,$^)
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# Remove comment lines from libc.remove file
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$(BUILD_DIR)libc.remove: $(ROOT)libc/libc.remove | $(BUILD_DIR)
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$(Q) grep -v "^#" $< | cat > $@
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# Remove unwanted object files listed in libgcc.remove
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$(BUILD_DIR)libc.a: $(ROOT)libc/xtensa-lx106-elf/lib/libc.a $(BUILD_DIR)libc.remove | $(BUILD_DIR)
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@echo "Removing unwanted objects from $<"
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$(Q) cat $< > $@
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$(Q) $(AR) d $@ @$(word 2,$^)
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## Linking rules for SDK libraries
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## SDK libraries are preprocessed to:
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# - remove object files named in <libname>.remove
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# - prefix all defined symbols with 'sdk_'
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# - weaken all global symbols so they can be overriden from the open SDK side
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#
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# SDK binary libraries are preprocessed into $(BUILD_DIR)/sdklib
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SDK_PROCESSED_LIBS = $(addsuffix .a,$(addprefix $(BUILD_DIR)sdklib/lib,$(SDK_LIBS)))
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# Make rules for preprocessing each SDK library
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# hacky, but prevents confusing error messages if one of these files disappears
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$(ROOT)lib/%.remove:
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touch $@
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# Remove comment lines from <libname>.remove files
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$(BUILD_DIR)sdklib/%.remove: $(ROOT)lib/%.remove | $(BUILD_DIR)sdklib
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$(Q) grep -v "^#" $< | cat > $@
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# Stage 1: remove unwanted object files listed in <libname>.remove alongside each library
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$(BUILD_DIR)sdklib/%_stage1.a: $(ROOT)lib/%.a $(BUILD_DIR)sdklib/%.remove | $(BUILD_DIR)sdklib
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@echo "SDK processing stage 1: Removing unwanted objects from $<"
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$(Q) cat $< > $@
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$(Q) $(AR) d $@ @$(word 2,$^)
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# Stage 2: Redefine all SDK symbols as sdk_, weaken all symbols.
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$(BUILD_DIR)sdklib/%.a: $(BUILD_DIR)sdklib/%_stage1.a $(ROOT)lib/allsymbols.rename
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@echo "SDK processing stage 2: Renaming symbols in SDK library $< -> $@"
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$(Q) $(OBJCOPY) --redefine-syms $(word 2,$^) --weaken $< $@
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# include "dummy component" for the 'program' object files, defined in the Makefile
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PROGRAM_SRC_DIR ?= $(PROGRAM_DIR)
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PROGRAM_ROOT ?= $(PROGRAM_DIR)
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PROGRAM_MAKEFILE = $(firstword $(MAKEFILE_LIST))
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$(eval $(call component_compile_rules,PROGRAM))
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## Include other components (this is where the actual compiler sections are generated)
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##
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## if component directory exists relative to $(ROOT), use that.
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## otherwise try to resolve it as an absolute path
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$(foreach component,$(COMPONENTS), \
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$(if $(wildcard $(ROOT)$(component)), \
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$(eval include $(ROOT)$(component)/component.mk), \
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$(eval include $(component)/component.mk) \
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) \
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)
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# final linking step to produce .elf
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$(PROGRAM_OUT): $(WHOLE_ARCHIVES) $(COMPONENT_ARS) $(BUILD_DIR)libgcc.a $(BUILD_DIR)libc.a $(SDK_PROCESSED_LIBS) $(LINKER_SCRIPTS)
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$(vecho) "LD $@"
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$(Q) $(LD) $(LDFLAGS) -Wl,--whole-archive $(WHOLE_ARCHIVES) -Wl,--no-whole-archive -Wl,--start-group $(COMPONENT_ARS) $(BUILD_DIR)libgcc.a $(BUILD_DIR)libc.a $(LIB_ARGS) $(SDK_LIB_ARGS) -Wl,--end-group -o $@
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$(BUILD_DIR) $(FIRMWARE_DIR) $(BUILD_DIR)sdklib:
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$(Q) mkdir -p $@
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$(FW_FILE_1) $(FW_FILE_2): $(PROGRAM_OUT) $(FIRMWARE_DIR)
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$(vecho) "FW $@"
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$(Q) $(ESPTOOL) elf2image $(ESPTOOL_ARGS) $< -o $(FIRMWARE_DIR)
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$(FW_FILE): $(PROGRAM_OUT) $(FIRMWARE_DIR)
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$(vecho) "FW $@"
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$(Q) $(ESPTOOL) elf2image --version=2 $(ESPTOOL_ARGS) $< -o $(FW_FILE)
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flash: all
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$(if will_flash, $(call will_flash, "flash"))
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$(ESPTOOL) -p $(ESPPORT) --baud $(ESPBAUD) write_flash $(ESPTOOL_ARGS) \
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$(RBOOT_ARGS) 0x2000 $(FW_FILE) $(SPIFFS_ESPTOOL_ARGS)
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$(if did_flash, $(call did_flash, "flash"))
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erase_flash:
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$(if will_flash, $(call will_flash, "erase"))
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$(ESPTOOL) -p $(ESPPORT) --baud $(ESPBAUD) erase_flash
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$(if did_flash, $(call did_flash, "erase"))
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size: $(PROGRAM_OUT)
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$(Q) $(CROSS)size --format=sysv $(PROGRAM_OUT)
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test: flash
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$(FILTEROUTPUT) --port $(ESPPORT) --baud 115200 --elf $(PROGRAM_OUT)
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# the rebuild target is written like this so it can be run in a parallel build
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# environment without causing weird side effects
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rebuild:
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$(MAKE) clean
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$(MAKE) all
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clean:
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$(Q) rm -rf $(BUILD_DIR)
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$(Q) rm -rf $(FIRMWARE_DIR)
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# prevent "intermediate" files from being deleted
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.SECONDARY:
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# print some useful help stuff
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help:
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@echo "esp-open-rtos make"
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@echo ""
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@echo "Other targets:"
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@echo ""
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@echo "all"
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@echo "Default target. Will build firmware including any changed source files."
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@echo
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@echo "clean"
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@echo "Delete all build output."
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@echo ""
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@echo "rebuild"
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@echo "Build everything fresh from scratch."
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@echo ""
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@echo "flash"
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@echo "Build then upload firmware to MCU. Set ESPPORT & ESPBAUD to override port/baud rate."
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@echo ""
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@echo "test"
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@echo "'flash', then start a GNU Screen session on the same serial port to see serial output."
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@echo ""
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@echo "size"
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@echo "Build, then print a summary of built firmware size."
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@echo ""
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@echo "TIPS:"
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@echo "* You can use -jN for parallel builds. Much faster! Use 'make rebuild' instead of 'make clean all' for parallel builds."
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@echo "* You can create a local.mk file to create local overrides of variables like ESPPORT & ESPBAUD."
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@echo ""
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@echo "SAMPLE COMMAND LINE:"
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@echo "make -j2 test ESPPORT=/dev/ttyUSB0"
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@echo ""
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