195 lines
7.4 KiB
Makefile
195 lines
7.4 KiB
Makefile
#
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# Build Template
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#
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# Invoke this template with a set of variables in order to make build targets
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# for a build variant that targets a specific CPU architecture.
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#
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include $(CHRE_PREFIX)/build/defs.mk
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################################################################################
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#
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# Build Template
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#
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# Invoke this to instantiate a set of build targets. Two build targets are
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# produced by this template that can be either used directly or depended on to
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# perform post processing (ie: during a nanoapp build).
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#
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# TARGET_NAME_ar - An archive of the code compiled by this template.
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# TARGET_NAME_so - A shared object of the code compiled by this template.
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# TARGET_NAME - A convenience target that depends on the above archive and
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# shared object targets.
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#
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# Argument List:
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# $1 - TARGET_NAME - The name of the target being built.
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# $2 - TARGET_CFLAGS - The compiler flags to use for this target.
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# $3 - TARGET_CC - The C/C++ compiler for the target variant.
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# $4 - TARGET_SO_LDFLAGS - The linker flags to use for this target.
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# $5 - TARGET_LD - The linker for the target variant.
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# $6 - TARGET_ARFLAGS - The archival flags to use for this target.
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# $7 - TARGET_AR - The archival tool for the targer variant.
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# $8 - TARGET_VARIANT_SRCS - Source files specific to this variant.
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# $9 - TARGET_BUILD_BIN - Build a binary. Typically this means that the
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# source files provided include an entry point.
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# $10 - TARGET_BIN_LDFLAGS - Linker flags that are passed to the linker
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# when building an executable binary.
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# $11 - TARGET_SO_EARLY_LIBS - Link against a set of libraries when building
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# a shared object. These are placed before the
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# objects produced by this build.
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# $12 - TARGET_SO_LATE_LIBS - Link against a set of libraries when building
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# a shared object. These are placed after the
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# objects produced by this build.
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#
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################################################################################
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ifndef BUILD_TEMPLATE
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define BUILD_TEMPLATE
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# Target Objects ###############################################################
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# Source files.
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$$(1)_CXX_SRCS = $$(filter %.cc, $(COMMON_SRCS) $(8))
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$$(1)_C_SRCS = $$(filter %.c, $(COMMON_SRCS) $(8))
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# Object files.
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$$(1)_OBJS_DIR = $(1)_objs
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$$(1)_CXX_OBJS = $$(patsubst %.cc, $(OUT)/$$($$(1)_OBJS_DIR)/%.o, \
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$$($$(1)_CXX_SRCS))
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$$(1)_C_OBJS = $$(patsubst %.c, $(OUT)/$$($$(1)_OBJS_DIR)/%.o, \
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$$($$(1)_C_SRCS))
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# Automatic dependency resolution Makefiles.
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$$(1)_CXX_DEPS = $$(patsubst %.cc, $(OUT)/$$($$(1)_OBJS_DIR)/%.d, \
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$$($$(1)_CXX_SRCS))
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$$(1)_C_DEPS = $$(patsubst %.c, $(OUT)/$$($$(1)_OBJS_DIR)/%.d, \
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$$($$(1)_C_SRCS))
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# Add object file directories.
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$$$(1)_DIRS = $$(sort $$(dir $$($$(1)_CXX_OBJS) $$($$(1)_C_OBJS)))
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# Outputs ######################################################################
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# Shared Object
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$$(1)_SO = $(OUT)/$$$(1)/$(OUTPUT_NAME).so
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# Static Archive
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$$(1)_AR = $(OUT)/$$$(1)/$(OUTPUT_NAME).a
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# Optional Binary
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$$(1)_BIN = $$(if $(9), $(OUT)/$$$(1)/$(OUTPUT_NAME), )
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# Top-level Build Rule #########################################################
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# Define the phony target.
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.PHONY: $(1)_ar
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$(1)_ar: $$($$(1)_AR)
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.PHONY: $(1)_so
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$(1)_so: $$($$(1)_SO)
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.PHONY: $(1)_bin
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$(1)_bin: $$($$(1)_BIN)
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.PHONY: $(1)
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$(1): $(1)_ar $(1)_so $(1)_bin
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# If building the runtime, simply add the archive and shared object to the all
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# target. When building CHRE, it is expected that this runtime just be linked
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# into another build system (or the entire runtime is built using another build
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# system).
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ifeq ($(IS_NANOAPP_BUILD),)
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all: $(1)
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endif
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# Compile ######################################################################
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$$($$(1)_CXX_OBJS): $(OUT)/$$($$(1)_OBJS_DIR)/%.o: %.cc
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$(3) $(COMMON_CXX_CFLAGS) -DCHRE_FILENAME=\"$$(notdir $$<)\" $(2) -c $$< \
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-o $$@
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$$($$(1)_C_OBJS): $(OUT)/$$($$(1)_OBJS_DIR)/%.o: %.c
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$(3) $(COMMON_C_CFLAGS) -DCHRE_FILENAME=\"$$(notdir $$<)\" $(2) -c $$< \
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-o $$@
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# Archive ######################################################################
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# Add common and target-specific archive flags.
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$$$(1)_ARFLAGS = $(COMMON_ARFLAGS) \
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$(6)
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$$($$(1)_AR): $$(OUT)/$$$(1) $$($$$(1)_DIRS) $$($$(1)_CXX_OBJS) $$($$(1)_C_OBJS)
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$(7) $$($$$(1)_ARFLAGS) $$@ $$(filter %.o, $$^)
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# Link #########################################################################
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$$($$(1)_SO): $$(OUT)/$$$(1) $$($$$(1)_DIRS) $$($$(1)_CXX_DEPS) \
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$$($$(1)_C_DEPS) $$($$(1)_CXX_OBJS) $$($$(1)_C_OBJS)
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$(5) $(4) -o $$@ $(11) $$(filter %.o, $$^) $(12)
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$$($$(1)_BIN): $$(OUT)/$$$(1) $$($$$(1)_DIRS) $$($$(1)_CXX_DEPS) \
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$$($$(1)_C_DEPS) $$($$(1)_CXX_OBJS) $$($$(1)_C_OBJS)
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$(3) -o $$@ $$(filter %.o, $$^) $(10)
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# Output Directories ###########################################################
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$$($$$(1)_DIRS):
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mkdir -p $$@
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$$(OUT)/$$$(1):
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mkdir -p $$@
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# Automatic Dependency Resolution ##############################################
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$$($$(1)_CXX_DEPS): $(OUT)/$$($$(1)_OBJS_DIR)/%.d: %.cc
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mkdir -p $$(dir $$@)
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$(3) $(DEP_CFLAGS) $(COMMON_CXX_CFLAGS) \
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-DCHRE_FILENAME=\"$$(notdir $$<)\" $(2) -c $$< -o $$@
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$(DEP_POST_COMPILE)
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$$($$(1)_C_DEPS): $(OUT)/$$($$(1)_OBJS_DIR)/%.d: %.c
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mkdir -p $$(dir $$@)
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$(3) $(DEP_CFLAGS) $(COMMON_C_CFLAGS) \
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-DCHRE_FILENAME=\"$$(notdir $$<)\" $(2) -c $$< -o $$@
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$(DEP_POST_COMPILE)
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# Include generated dependency files if they are in the requested build target.
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# This avoids dependency generation from occuring for a debug target when a
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# non-debug target is requested.
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ifneq ($(filter $(1) all, $(MAKECMDGOALS)),)
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include $$(patsubst %.o, %.d, $$($$(1)_CXX_DEPS))
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include $$(patsubst %.o, %.d, $$($$(1)_C_DEPS))
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endif
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endef
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endif
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# Template Invocation ##########################################################
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$(eval $(call BUILD_TEMPLATE, $(TARGET_NAME), \
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$(COMMON_CFLAGS) $(TARGET_CFLAGS), \
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$(TARGET_CC), \
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$(TARGET_SO_LDFLAGS), \
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$(TARGET_LD), \
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$(TARGET_ARFLAGS), \
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$(TARGET_AR), \
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$(TARGET_VARIANT_SRCS), \
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$(TARGET_BUILD_BIN), \
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$(TARGET_BIN_LDFLAGS), \
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$(TARGET_SO_EARLY_LIBS), \
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$(TARGET_SO_LATE_LIBS)))
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# Debug Template Invocation ####################################################
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$(eval $(call BUILD_TEMPLATE, $(TARGET_NAME)_debug, \
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$(COMMON_CFLAGS) $(COMMON_DEBUG_CFLAGS) \
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$(TARGET_CFLAGS) $(TARGET_DEBUG_CFLAGS), \
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$(TARGET_CC), \
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$(TARGET_SO_LDFLAGS), \
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$(TARGET_LD), \
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$(TARGET_ARFLAGS), \
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$(TARGET_AR), \
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$(TARGET_VARIANT_SRCS), \
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$(TARGET_BUILD_BIN), \
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$(TARGET_BIN_LDFLAGS), \
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$(TARGET_SO_EARLY_LIBS), \
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$(TARGET_SO_LATE_LIBS)))
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