makefile

nios中自定义指令集实现三角函数的软件部分。

#
# Include paths for BSP files are written into the public.mk file and must
# be added to the existing list of pre-processor flags. In addition, "hooks"
# for standard flags left intentionally empty (CFLAGS, CPPFLAGS, ASFLAGS,
# and CXXFLAGS) are provided for conveniently adding to the relevant flags
# on the command-line or via script that calls make.
#------------------------------------------------------------------------------
# Assemble final list of compiler flags from generated content
BSP_CFLAGS += \
  $(BSP_CFLAGS_DEFINED_SYMBOLS) \
  $(BSP_CFLAGS_UNDEFINED_SYMBOLS) \
  $(BSP_CFLAGS_OPTIMIZATION) \
  $(BSP_CFLAGS_DEBUG) \
  $(BSP_CFLAGS_WARNINGS) \
  $(BSP_CFLAGS_USER_FLAGS) \
  $(ALT_CFLAGS) \
  $(CFLAGS) 

# Make ready the final list of include directories and other C pre-processor
# flags. Each include path is made ready by prefixing it with "-I".
BSP_CPPFLAGS += \
  $(addprefix -I, $(BSP_INC_DIRS)) \
  $(addprefix -I, $(ALT_INCLUDE_DIRS)) \
  $(ALT_CPPFLAGS) \
  $(CPPFLAGS)

# Finish off assembler flags with any user-provided flags
BSP_ASFLAGS += $(ASFLAGS)

# Finish off C++ flags with any user-provided flags
BSP_CXXFLAGS += $(CXXFLAGS)

# Generated BSP sources
GENERATED_C_LIB_SRCS += \
  alt_sys_init.c

# And finally, the ordered list
C_SRCS += $(GENERATED_C_LIB_SRCS) \
          $(COMPONENT_C_LIB_SRCS)

ASM_SRCS += $(GENERATED_ASM_LIB_SRCS) \
            $(COMPONENT_ASM_LIB_SRCS)


#------------------------------------------------------------------------------
#                         LIST OF GENERATED FILES
#
# A Nios II HAL BSP relies on the generation of several source files used
# by both the BSP and any applications referencing the BSP.
#------------------------------------------------------------------------------
GENERATED_C_FILES := $(ABS_BSP_ROOT)/alt_sys_init.c

GENERATED_H_FILES := $(ABS_BSP_ROOT)/system.h

GENERATED_LINKER_SCRIPT := $(ABS_BSP_ROOT)/linker.x

GENERATED_FILES += $(GENERATED_C_FILES) \
                   $(GENERATED_H_FILES) \
                   $(GENERATED_LINKER_SCRIPT)


#------------------------------------------------------------------------------
#                        SETUP TO BUILD OBJECTS
#
# List of object files which are to be built. This is constructed from the input
# list of C source files (C_SRCS), C++ source files (CXX_SRCS), and assembler
# source file (ASM_SRCS). The permitted file extensions are:
#
# .c            - for C files
# .cxx .cc .cpp - for C++ files
# .S .s         - for assembler files
#
# Extended description: The list of objects is a sorted list (duplicates
# removed) of all possible objects, placed beneath the ./obj directory,
# including any path information stored in the "*_SRCS" variable. The
# "patsubst" commands are used to concatenate together multiple file suffix
# types for common files (i.e. c++ as .cxx, .cc, .cpp)
#------------------------------------------------------------------------------
OBJS = $(sort $(addprefix $(OBJ_DIR)/, $(C_SRCS:.c=.o)                        \
               $(patsubst %.cxx, %.o, $(patsubst %.cc, %.o,                   \
                                        $(patsubst %.cpp, %.o, $(CXX_SRCS)))) \
               $(patsubst %.S, %.o, $(patsubst %.s, %.o, $(ASM_SRCS)))))

# List of dependancy files for each object file.
DEPS = $(OBJS:.o=.d)

# Create list of BSP object directories.
OBJ_DIRS := $(sort $(dir $(OBJS)))

#------------------------------------------------------------------------------
#                          BUILD RULES: ALL & CLEAN
#------------------------------------------------------------------------------
.DELETE_ON_ERROR:

.PHONY: all
all: build_pre_process
all: Makefile $(OBJ_DIRS) $(GENERATED_FILES) $(BSP_LIB) $(NEWLIB_DIR)
all: build_post_process

# clean: remove .o/.a/.d
.PHONY: clean
clean:
	$(RM) -r *.a $(OBJ_DIR)
	find . -name '*.o' | xargs $(RM)
ifeq ($(MAKECMDGOALS),clean)
	find . -name '*.d' | xargs $(RM)
endif
	$(RM) -rf $(NEWLIB_DIR)


#------------------------------------------------------------------------------
#                           BUILD PRE/POST PROCESS
#------------------------------------------------------------------------------
build_pre_process :
	$(BUILD_PRE_PROCESS)

build_post_process :
	$(BUILD_POST_PROCESS)

.PHONY: build_pre_process build_post_process


#------------------------------------------------------------------------------
#                              OBJECT DIRECTORIES
#------------------------------------------------------------------------------
$(OBJ_DIRS) :
	@mkdir -p $@


#------------------------------------------------------------------------------
#                             MAKEFILE UP TO DATE?
#
# Is this very Makefile up to date? Someone may have changed the BSP settings
# file or the associated target hardware.
#------------------------------------------------------------------------------
ifneq ($(wildcard $(SETTINGS_FILE)),$(SETTINGS_FILE))
$(warning Warning: BSP Settings File $(SETTINGS_FILE) could not be found.)
endif

Makefile: $(wildcard $(SETTINGS_FILE))
	@echo This Makefile is not up to date.
	@echo
	@echo This means that the $(SETTINGS_FILE) file has been modified since
	@echo this Makefile\'s generation.
	@echo
	@echo Please re-generate this BSP to refresh this Makefile, and then
	@echo attempt to build again.
	@exit 1
	
public.mk: $(wildcard $(SOPC_FILE))
	@echo $(SOPC_FILE) file and Makefile are not up to date.
	@echo
	@echo This means that $(SOPC_FILE) has been modified since
	@echo this BSP\'s last generate.
	@echo
	@echo Please re-generate this BSP to refresh this Makefile, and then
	@echo attempt to build again. However, depending on how $(SOPC_FILE) was modified 
	@echo you may need to create a new BSP. 	   	
	@exit 1

#------------------------------------------------------------------------------
#                     PATTERN RULES TO BUILD OBJECTS
#------------------------------------------------------------------------------
$(OBJ_DIR)/%.o: %.c
	@echo Compiling $(notdir $<)...
	@mkdir -p $(dir $@)
	$(CC_PRE_PROCESS)
	$(CC) -MD -c $(BSP_CPPFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CC_POST_PROCESS)

$(OBJ_DIR)/%.o: %.cpp
	@echo Compiling $(notdir $<)...
	@mkdir -p $(dir $@)
	$(CXX_PRE_PROCESS)
	$(CXX) -MD -c $(BSP_CPPFLAGS) $(BSP_CXXFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CXX_POST_PROCESS)

$(OBJ_DIR)/%.o: %.cc
	@echo Compiling $(notdir $<)...
	@mkdir -p $(dir $@)
	$(CXX_PRE_PROCESS)
	$(CXX) -MD -c $(BSP_CPPFLAGS) $(BSP_CXXFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CXX_POST_PROCESS)

$(OBJ_DIR)/%.o: %.cxx
	@echo Compiling $(notdir $<)...
	@mkdir -p $(dir $@)
	$(CXX_PRE_PROCESS)
	$(CXX) -MD -c $(BSP_CPPFLAGS) $(BSP_CXXFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CXX_POST_PROCESS)

$(OBJ_DIR)/%.o: %.S
	@echo Compiling $(notdir $<)...
	@mkdir -p $(dir $@)
	$(AS_PRE_PROCESS)
	$(AS) -MD -c $(BSP_CFLAGS) $(BSP_CPPFLAGS) $(BSP_ASFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(AS_POST_PROCESS)

$(OBJ_DIR)/%.o: %.s
	@echo Compiling $(notdir $<)...
	@mkdir -p $(dir $@)
	$(AS_PRE_PROCESS)
	$(AS) -MD -c $(BSP_ASFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(AS_POST_PROCESS)

# Pattern rules for making useful intermediate files
$(OBJ_DIR)/%.s: %.c
	@echo Compiling $(notdir $<) to assembler...
	@mkdir -p $(dir $@)
	$(CC_PRE_PROCESS)
	$(CC) -MD -c $(BSP_CPPFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CC_POST_PROCESS)

$(OBJ_DIR)/%.s: %.cpp
	@echo Compiling $(notdir $<) to assembler...
	@mkdir -p $(dir $@)
	$(CXX_PRE_PROCESS)
	$(CXX) -MD -c $(BSP_CPPFLAGS) $(BSP_CXXFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CXX_PRE_PROCESS)

$(OBJ_DIR)/%.s: %.cc
	@echo Compiling $(notdir $<) to assembler...
	@mkdir -p $(dir $@)
	$(CXX_PRE_PROCESS)
	$(CXX) -MD -c $(BSP_CPPFLAGS) $(BSP_CXXFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CXX_PRE_PROCESS)

$(OBJ_DIR)/%.s: %.cxx
	@echo Compiling $(notdir $<) to assembler...
	@mkdir -p $(dir $@)
	$(CXX_PRE_PROCESS)
	$(CXX) -MD -c $(BSP_CPPFLAGS) $(BSP_CXXFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CXX_PRE_PROCESS)

$(OBJ_DIR)/%.i: %.c
	@echo Compiling $(notdir $<) to assembler...
	@mkdir -p $(dir $@)
	$(CC_PRE_PROCESS)
	$(CC) -E $(CPPFLAGS) $(ALT_CFLAGS) $(CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CC_PRE_PROCESS)

$(OBJ_DIR)/%.i: %.cpp
	@echo Compiling $(notdir $<) to assembler...
	@mkdir -p $(dir $@)
	$(CXX_PRE_PROCESS)
	$(CXX) -MD -c $(BSP_CPPFLAGS) $(BSP_CXXFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CXX_PRE_PROCESS)

$(OBJ_DIR)/%.i: %.cc
	@echo Compiling $(notdir $<) to assembler...
	@mkdir -p $(dir $@)
	$(CXX_PRE_PROCESS)
	$(CXX) -MD -c $(BSP_CPPFLAGS) $(BSP_CXXFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CXX_PRE_PROCESS)

$(OBJ_DIR)/%.i: %.cxx
	@echo Compiling $(notdir $<) to assembler...
	@mkdir -p $(dir $@)
	$(CXX_PRE_PROCESS)
	$(CXX) -MD -c $(BSP_CPPFLAGS) $(BSP_CXXFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CXX_PRE_PROCESS)

# Pattern rules for building other object files.
%.o: %.c
	@echo Compiling $(notdir $<)...
	$(CC_PRE_PROCESS)
	$(CC) -MD -c $(CPPFLAGS) $(ALT_CFLAGS) $(CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CC_POST_PROCESS)

%.o: %.cpp
	@echo Compiling $(notdir $<)...
	$(CXX_POST_PROCESS)
	$(CXX) -MD -c $(BSP_CPPFLAGS) $(BSP_CXXFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CXX_POST_PROCESS)

%.o: %.cc
	@echo Compiling $(notdir $<)...
	$(CXX_POST_PROCESS)
	$(CXX) -MD -c $(BSP_CPPFLAGS) $(BSP_CXXFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CXX_POST_PROCESS)

%.o: %.cxx
	@echo Compiling $(notdir $<)...
	$(CXX_PRE_PROCESS)
	$(CXX) -MD -c $(BSP_CPPFLAGS) $(BSP_CXXFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(CXX_POST_PROCESS)

%.o: %.S
	@echo Compiling $(notdir $<)...
	$(AS_PRE_PROCESS)
	$(AS) -MD -c $(BSP_CFLAGS) $(BSP_CPPFLAGS) $(BSP_ASFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(AS_POST_PROCESS)

%.o: %.s
	@echo Compiling $(notdir $<)...
	$(AS_PRE_PROCESS)
	$(AS) -MD -c $(BSP_ASFLAGS) $(BSP_CFLAGS) -o $@ $(join $(ABS_BSP_ROOT)/,$<)
	$(AS_POST_PROCESS)


#------------------------------------------------------------------------------
#                               NEWLIB RULES
#------------------------------------------------------------------------------
$(NEWLIB_DIR): 
	@echo Creating $(NEWLIB_DIR)...
	nios2-newlib-gen --no-multilib $(NEWLIB_DIR)-build-tmp $(NEWLIB_DIR) --custom "$(NEWLIB_FLAGS)"		
	@echo Removing $(NEWLIB_DIR)-build-tmp...
	@$(RM) -rf $(NEWLIB_DIR)-build-tmp


#------------------------------------------------------------------------------
#                               LIBRARY RULES
#------------------------------------------------------------------------------
$(BSP_LIB): $(OBJS)
	@echo Creating $@...
	$(AR_PRE_PROCESS)
	$(RM) -f $@
	$(AR) $(BSP_ARFLAGS) $@ $^
	$(AR_POST_PROCESS)


#------------------------------------------------------------------------------
#                                DEPENDENCY FILES
#------------------------------------------------------------------------------
ifneq ($(findstring clean, $(MAKECMDGOALS)),clean)
ifneq ($(MAKECMDGOALS),distclean)
ifneq ($(MAKECMDGOALS),rebuild)
-include $(DEPS)
endif
endif
endif

# End of Makefile