makedefs

嵌入式系统 EP93xx处理器

#*****************************************************************************
#
# MAKEDEFS - Common definitions for all makefiles.
#
# Copyright (c) 2006 Cirrus Logic, Inc.
#
#*****************************************************************************

#*****************************************************************************
#
# The default rule.
#
#*****************************************************************************
.PHONY: all
all: default

#*****************************************************************************
#
# The following defines are for using GCC to cross compile ARM code.
#
#*****************************************************************************
ifeq ($(CROSSTOOLS), gcc)

#
# The names of the various tools.
#
CC = arm-elf-gcc
LD = arm-elf-ld
NM = arm-elf-nm
OBJCOPY = arm-elf-objcopy

#
# The extension used for executables.
#
EXEEXT = elf

#
# The default set of flags for the assembler, compiler, and linker.
#
AFLAGS = -MD -Wa,-marm7tdmi -Dgcc
CFLAGS = -MD -Wall -fno-common -fshort-enums -mcpu=arm7tdmi -fno-builtin -mapcs
LFLAGS = -q

#
# Augment the compiler flags based on whether or not a DEBUG version is being
# built.
#
ifdef DEBUG
AFLAGS += -Wa,--gdwarf2
CFLAGS += -g
else
CFLAGS += -O2
endif

#
# Augment the assembler and compiler flags based on the set of pre-defined
# values.
#
ifdef DEFINES
AFLAGS += $(patsubst %,-D%,$(DEFINES))
CFLAGS += $(patsubst %,-D%,$(DEFINES))
endif

#
# Augment the linker flags based on the read-only and read-write base, if
# specified.
#
ifdef ROBASE
LFLAGS += --defsym ROBASE=$(ROBASE)
endif
ifdef RWBASE
LFLAGS += --defsym RWBASE=$(RWBASE)
endif

#
# A rule to create a ROM image from the object files.
#
$(TARGET).rom: $(OBJS) $(LIBS) $(TARGET).lds
	$(LD) $(LFLAGS) -T $(TARGET).lds -o $(TARGET).elf $(OBJS) $(LIBS)
	$(NM) -n $(TARGET).elf | awk '$$2 != "a" {print}' > $(TARGET).map
	$(OBJCOPY) -O binary $(TARGET).elf $@

#
# The default rule for generating an object file from an assembly source file.
#
.S.o:
	$(CC) $(AFLAGS) -c $(<:.s=.S)

endif

#*****************************************************************************
#
# The following defines are for using ARM SDT 2.5.
#
#*****************************************************************************
ifeq ($(CROSSTOOLS), sdt25)

#
# The names of the various tools.
#
AS = armasm
CC = armcc
LD = armlink
FROMELF = fromelf

#
# The extension used for executables.
#
EXEEXT = axf

#
# The default set of flags for the assembler, compiler, and linker.
#
AFLAGS =
CFLAGS =
CPPFLAGS = -MD -Wall
LFLAGS = -info size,total -map -noscanlib -remove

#
# Augment the assembler and compiler flags based on whether or not a DEBUG
# version is being built.
#
ifdef DEBUG
AFLAGS += -g
CFLAGS += -g -zpdebug_inlines
else
CFLAGS += -O2 -Otime
endif

#
# Augment the compiler flags based on the set of pre-defined values.
#
ifdef DEFINES
CFLAGS += $(patsubst %,-D%,$(DEFINES))
endif

#
# Augment the linker flags based on the read-only base, read-write base, and
# first object, if specified.
#
ifdef ROBASE
LFLAGS += -ro-base $(ROBASE)
endif
ifdef RWBASE
LFLAGS += -rw-base $(RWBASE)
endif
ifdef FIRST
LFLAGS += -first $(FIRST)
endif
ifdef ENTRY
LFLAGS += -entry $(ENTRY)
endif

#
# Convert the names of the libraries from their GCC/Unix (.a) names to the
# SDT/Windows (.alf) names.
#
SDT25LIBS = $(LIBS:.a=.alf)

#
# A rule to extract a ROM image from the executable.
#
$(TARGET).rom: $(OBJS) $(SDT25LIBS)
ifneq ($(OBJS), )
	@echo $(OBJS) > linker.via
endif
ifneq ($(SDT25LIBS), )
	@echo $(SDT25LIBS) >> linker.via
endif
	$(LD) $(LFLAGS) -o $(TARGET).$(EXEEXT) -list $(TARGET).map \
	  -via linker.via
	@rm -f linker.via
	$(FROMELF) -nozeropad $(TARGET).$(EXEEXT) -bin $@

#
# The default rule for generating an object file from an assembly source file.
#
.S.o:
	@CC="$(CC)" CPPFLAGS="$(CPPFLAGS) -Dsdt25" AS="$(AS)" AFLAGS="$(AFLAGS)" \
	 sh assemble.sh $<

endif

#*****************************************************************************
#
# The following defines are for using ARM ADS 1.0/1.1.
#
#*****************************************************************************
ifeq ($(CROSSTOOLS), ads)

#
# The names of the various tools.
#
AS = armasm
CC = armcc
LD = armlink
FROMELF = fromelf

#
# The extension used for executables.
#
EXEEXT = axf

#
# The default set of flags for the assembler, compiler, and linker.
#
AFLAGS =
CFLAGS =
CPPFLAGS = -MD -Wall
LFLAGS = -info sizes,totals -map -scanlib

#
# Augment the assembler and compiler flags based on whether or not a DEBUG
# version is being built.
#
ifdef DEBUG
AFLAGS += -g
CFLAGS += -g
else
CFLAGS += -O2
endif

#
# Augment the compiler flags based on the set of pre-defined values.
#
ifdef DEFINES
CFLAGS += $(patsubst %,-D%,$(DEFINES))
endif

#
# Augment the linker flags based on the read-only base, read-write base, and
# first object, if specified.
#
ifdef ROBASE
LFLAGS += -ro-base $(ROBASE)
endif
ifdef RWBASE
LFLAGS += -rw-base $(RWBASE)
endif
ifdef FIRST
LFLAGS += -first $(FIRST)
endif
ifdef ENTRY
LFLAGS += -entry $(ENTRY)
endif

#
# A rule to extract a ROM image from the executable.
#
$(TARGET).rom: $(OBJS) $(LIBS)
ifneq ($(OBJS), )
	@echo $(OBJS) > linker.via
endif
ifneq ($(LIBS), )
	@echo $(LIBS) >> linker.via
endif
	$(LD) $(LFLAGS) -o $(TARGET).$(EXEEXT) -list $(TARGET).map \
	  -via linker.via
	@rm -f linker.via
	$(FROMELF) -bin -o $@ $(TARGET).$(EXEEXT)

#
# The default rule for generating an object file from an assembly source file.
#
.S.o:
	@CC="$(CC)" CPPFLAGS="$(CPPFLAGS) -Dads" AS="$(AS)" AFLAGS="$(AFLAGS)" \
	 sh assemble.sh $<
	
endif

#*****************************************************************************
#
# The following defines are for using GCC to compile native code.
#
#*****************************************************************************
ifeq ($(NATIVETOOLS), gcc)

#
# The names of the various tools.
#
NATIVECC = gcc -s

#
# The extension used for executables.
#
PROGEXT = $(shell $(NATIVECC) -dumpmachine | grep cygwin)
ifneq ($(PROGEXT),)
PROGEXT = .exe
endif

endif

#*****************************************************************************
#
# The following defines are for using MSVC to compile native code.
#
#*****************************************************************************
ifeq ($(NATIVETOOLS), msvc)

#
# The names of the various tools.
#
NATIVECC = cl -nologo

#
# The extension used for executables.
#
PROGEXT = .exe

endif

#*****************************************************************************
#
# The following are default rules that are used with any tool set.
#
#*****************************************************************************

#
# The default rule for generating an object file from a C source file.
#
.c.o:
	$(CC) $(CFLAGS) -c $<
	
#
# Recursively executes make in each of the subdirectories.
#
ifdef DIRS
.PHONY: $(DIRS)
$(DIRS):
	@$(MAKE) -C $@
endif

#
# Clean out the source tree.
#
.PHONY: clean
clean::
ifdef DIRS
	@for i in $(DIRS); do $(MAKE) -C $$i clean; done
endif
ifdef TARGET
	@rm -f $(TARGET).$(EXEEXT) $(TARGET).rom $(TARGET).map
endif
	@rm -f $(wildcard *.o) $(wildcard *.obj) $(wildcard *~) \
	   $(wildcard *.d)

#*****************************************************************************
#
# The following are default dependencies.
#
#*****************************************************************************

#
# All of the objects depend upon the makefile and the files that it includes.
#
$(OBJS): Makefile makedefs

#
# Include the dependencies generated by the build.
#
-include $(wildcard *.d) __dummy__