makefile

嵌入式系统中文件系统源代码

###############################################################################
# Makefile for library building,written by Yu-Cheng Chang
# Date: Tue 03-06-2001
#
# Desc: 1.To change this makefile to build another library ,
#       those MACROs are need to be modified.
#        LIB_F: the file name of library.
#        OBJS: the object files of library.
#        INCS: include files.
#              (one of those files is modified,all objects are rebuild)
#        SRC_DIR: Directoris of source code.
#                 (each directory is seperated with space)
#        INC_DIR: Directoris of include files.
#                 (each directory is seperated with space)
#        OBJ_DIR: Directory to place object code(one directory ONLY)
#        LIB_DIR: Directory to place library file(one directory ONLY)
#
#       2.Modifing MACROs below is according to your requirement.
#        PRE_SYM: The defined symbols for preprocessor.
###############################################################################
!if $(OS_TYPE) == NT
 S=\\
 REMOVE  = del
 COPY    = copy
 MOVE    = move
!else
 S=/
 REMOVE  = rm -f
 COPY    = cp
 MOVE    = mv
!endif

# Object files
OBJS = \
  basic.o \
  c_zlib.o \
  defrag.o \
  dskblk.o \
  findx.o \
  fio.o \
  piece.o \
  rddebug.o \
  rename.o \
  scan.o

# Include files
INCS = \

# Library name
LIB_F = ramdisk.a

# Define preprocess symbol for Compiler
PRE_SYM +=

# Directoris of source code
SRC_DIR = $(RTOSHOME)driver$(S)ramdisk4.2$(S)src$(S)

# Directory to place object code
OBJ_DIR = $(RTOSHOME)driver$(S)ramdisk4.2$(S)$(TARGET_DIR)$(S)obj$(S)

# Directory to place library file
LIB_DIR = $(RTOSHOME)$(TARGET_DIR)$(S)LIB$(S)

# Directoris of include files
INC_DIR = \
 $(RTOSHOME)kernel/include/\
 $(RTOSHOME)kernel/include/ansi_c\
 $(RTOSHOME)driver/ramdisk4.2/include\
 .


# Source code searching path (VPATH is the specify feature of emake)
VPATH = $(SRC_DIR,>;)$(INC_DIR,>;) 
 
# Assign Compiler
CC = $(S_CC)
AS = $(S_AS)
AR = $(S_AR)
ASFLAGS = $(S_ASFLAGS)
CCFLAGS = $(S_CCFLAGS)
CCFLAGS1 = $(CCFLAGS,S/mips16/mips1) # For some targets can't build in mips16
ARFLAGS = $(S_ARFLAGS)
#####

# Construct include path options
!if !(null(INC_DIR))                    #null() is the specify feature of emake.
 INC_PATH = $(INC_DIR:<$(INC_OPT))
!endif

# Build defined symbol options for compiling
!if !(null(PRE_SYM))                    #null() is the specify feature of emake.
 SYMBOLS = $(PRE_SYM:<$(SYM_OPT))       #modifier < s the specify feature of emake.
!endif

#####

# Infernece rule
.SUFFIXES: .a .o .c
.c.o:
!if !(null(OUT_OPT))
 $(CC) $(CCFLAGS) $(INC_PATH) $(SYMBOLS) $(OUT_OPT) $@ $<
!else
 $(CC) $(CCFLAGS) $(INC_PATH) $(SYMBOLS) $<
!endif

SPC_CC = $(CC) $(CCFLAGS1) $(INC_PATH) $(SYMBOLS)
!if !(null(OUT_OPT))
 SPC_CC += $(OUT_OPT) $@
!endif
SPC_CC += $<

#####

.PHONY all clean dump
# Target
all: $(OBJS:F,<$(OBJ_DIR)) $(LIB_DIR)$(LIB_F)

# Dependencies
# All object files
$(OBJS:F,<$(OBJ_DIR)) : $(INCS) 

# The elements' pathes of OBJS are filter out.
# The library file
$(LIB_DIR)$(LIB_F) : $(OBJS:F,<$(OBJ_DIR))
 @echo Building $@....
!if $(AR) == ar # GNU ar has problem in replace option
 @$(REMOVE) $@
!endif
 @$(AR) $(ARFLAGS) $@ $(OBJS:F,<$(OBJ_DIR))

# End.

# Command
clean:
!if -e $(LIB_DIR)$(LIB_F)
 $(REMOVE) $(LIB_DIR)$(LIB_F)
!endif
 $(REMOVE) $(OBJ_DIR)*.o

dump:
	@echo $(CC)
	@echo $(CCFLAGS)
	@echo $(AS)
	@echo $(ASFLAGS)
	@echo $(AR)
	@echo $(ARFLAGS)
	@echo $(SYMBOLS)
	@echo $(LIB_DIR)
	@echo $(INC_PATH)