makefile_

lpc2200 i2c 代码分析,希望大家指导

#******************************************************************************
#
#  $RCSfile: $
#  $Revision: $
#
#  This is the Makefile for an LPC project using gcc.
#  Copyright 2004, R O SoftWare
#  No guarantees, warrantees, or promises, implied or otherwise.
#  May be used for hobby or commercial purposes provided copyright
#  notice remains intact.
# 
#******************************************************************************

# name of output program
NAME      = uartTest
CPU       = arm7tdmi
RUN_MODE  = RAM_RUN                     # one of RAM_RUN or ROM_RUN
VERSION   = 0000


# check for a local environmental include file
!if exist(.environ)
!include .environ
!else
# put default environmental variables (ROOTDIR,PATH,...) here
ROOTDIR  = D:/Cygwin/gnutools
!endif

PATH     = $(ROOTDIR)\bin;$(PATH)

INCLUDES = -I ./

!if "$(RUN_MODE)" == "RAM_RUN"
SCRIPT   = RAM
!elseif "$(RUN_MODE)" == "ROM_RUN"
SCRIPT   = ROM
!else
!ERROR RUN_MODE not defined.
!endif

#THUMB    = -mthumb
#THUMB_IW = -mthumb-interwork
RUN_DEF  = -D$(RUN_MODE)

OPTFLAGS = -mcpu=$(CPU) -ggdb $(THUMB_IW)
WARNINGS = -Wall -Wcast-align -Wcast-qual -Wimplicit -Wmissing-declarations \
           -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wswitch \
           -Wredundant-decls -Wreturn-type -Wshadow -Wstrict-prototypes -Wunused
CCFLAGS  = $(OPTFLAGS) $(INCLUDES) $(WARNINGS) $(RUN_DEF) -O2 -DVERSION=0x$(VERSION)
ASFLAGS  = $(OPTFLAGS) $(INCLUDES) -D_GNU_ASSEMBLER_ -x assembler-with-cpp $(RUN_DEF) \
           -Wa,-gstabs
LDFLAGS  = $(OPTFLAGS) -nostartfiles -Wl,-Map=$*.map,--cref

########################################################################################

CC       = arm-elf-gcc
LD       = arm-elf-ld
AR       = arm-elf-ar
AS       = arm-elf-gcc
GASP     = arm-elf-gasp
NM       = arm-elf-nm
OBJCOPY  = arm-elf-objcopy
RANLIB   = arm-elf-ranlib
READELF  = arm-elf-readelf
STRIP    = arm-elf-strip
SIZE     = arm-elf-size
CP       = copy /Y
RM       = del /Q
ARCHIVE  = zip
MV       = move /Y

########################################################################################

.SUFFIXES :
.SUFFIXES : .o .c .s .S .elf .bin .hex .asm .s19

.c.o:
  @$(CC) $(THUMB) $(CCFLAGS) $< -c -o $@
         
.c.asm:  
  @$(CC) $(THUMB) $(CCFLAGS) $< -S -o $@
         
.S.o:    
  @$(CC) $(ASFLAGS) $< -c -o $@

.s.o:    
  @$(CC) $(ASFLAGS) $< -c -o $@

.elf.bin:
  @$(OBJCOPY) $*.elf -O binary $*.bin

.elf.hex:
  @$(OBJCOPY) $*.elf -O ihex $*.hex

# "mark" the S0 record of the .S19 file with the value of $(VERSION)
.elf.s19:
  @$(OBJCOPY) $*.elf -O srec $(NAME)$(VERSION).s19
  @$(MV) $(NAME)$(VERSION).s19 $*.s19

########################################################################################
# source and object files
ASRCS = crt0.S

CSRCS = main.c sysTime.c uart.c uartISR.c armVIC.c

OBJS = $(ASRCS:.S=.o) $(CSRCS:.c=.o)

########################################################################################
# The following MUST precede all: 
# 'nmake zip=<file_name>' creates a <file_name>.zip archive.
!ifdef ZIP
ZIPFILE = $(ZIP)
do_zip: zip
!else
ZIPFILE = sMPR$(VERSION)
!endif

########################################################################################

all: $(NAME).hex

# 'nmake release' rebuilds everything then creates a ZIP file using the
# current value of $(VERSION) as its name.
release: clobber depend all zip

$(NAME).elf: $(OBJS) Makefile $(SCRIPT).ld
  @$(CC) $(OBJS) $(THUMB) $(LDFLAGS) -T $(SCRIPT).ld -o $@
  @$(STRIP) -SXR .comment -o $(NAME).es $(NAME).elf
  @$(NM) $(NAME).es >$(NAME).syA
  @$(NM) -n $(NAME).es >$(NAME).sy1
  @echo MODE: $(RUN_MODE)
  @$(SIZE) -Ax $(NAME).es
  @$(RM) $(NAME).es

scratch: clobber all

clobber: clean
  -@$(RM) *.s19     >NUL 2>&1
  -@$(RM) *.hex     >NUL 2>&1
  -@$(RM) *.bin     >NUL 2>&1
  -@$(RM) *.map     >NUL 2>&1
  -@$(RM) *.syA     >NUL 2>&1
  -@$(RM) *.sy1     >NUL 2>&1
  -@$(RM)  .depend  >NUL 2>&1

clean:
  -@$(RM) /S *.o    >NUL 2>&1
  -@$(RM) *.elf     >NUL 2>&1
  -@$(RM) *.lst     >NUL 2>&1
  -@$(RM) *.asm     >NUL 2>&1
  -@$(RM) *.bin     >NUL 2>&1
  -@$(RM) *.hex     >NUL 2>&1
  -@$(RM) *.bak     >NUL 2>&1

zip:
!if exist(zips)
  @$(ARCHIVE) $(ZIPFILE).zip $(ASRCS) $(CSRCS) *.h Makefile *.ld README.txt
  @$(MV) $(ZIPFILE).zip zips
!endif

############################################################################
# special C language dependencies
# the following C files MUST be compiled in ARM mode (with interworking)
#flash.o:
#  @$(CC) $(CCFLAGS) $*.c -c -o $@

uartISR.o:
  @$(CC) $(CCFLAGS) $*.c -c -o $@

armVIC.o:
  @$(CC) $(CCFLAGS) $*.c -c -o $@

############################################################################
# assembly language dependencies


############################################################################
# dependency file support
# version.c gets the value of $(VERSION) from Makefile
host.c: MakeFile

depend: clobber .depend

.depend:
  @$(CC) -MM $(CCFLAGS) $(CSRCS) >  .depend
  @$(CC) -MM $(ASFLAGS) $(ASRCS) >> .depend
#  @makedepend -o.o -S -Y -- $(CCFLAGS) -- $(CSRCS) -f- > .depend

!if exist(.depend)
!include .depend
!endif