vivi代码解读之/Makefile
时间：2009-06-15 来源：cqlouis
#版本号是0.1.4
VERSION = 0
PATCHLEVEL = 1
SUBLEVEL = 4 #等效于定义一个变量VIVIRELEASE=0.1.4 VIVIRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL) # 其中的:=表示直接展开式变量定义，另外一种直接用“=”表示的是递归变量定义 #指定CPU体系结构是arm构架 ARCH := arm #-x如果文件可执行则为真 #不理理解$$BASH，为什么有两个$??????????????????????? CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
else if [ -x /bin/bash ]; then echo /bin/bash; \
else echo sh; fi ; fi)
TOPDIR := $(shell /bin/pwd) #
# change this to point to the Linux include directory
#
LINUX_INCLUDE_DIR = /opt/host/armv4l/include/
VIVIPATH = $(TOPDIR)/include HOSTCC = gcc
HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer CROSS_COMPILE = /opt/host/armv4l/bin/armv4l-unknown-linux-
#CROSS_COMPILE = /opt/host/armv4l/bin/armv4l-redhat-linux- #
# Include the make variables (CC, etc...)
# AS = $(CROSS_COMPILE)as
LD = $(CROSS_COMPILE)ld
CC = $(CROSS_COMPILE)gcc
CPP = $(CC) -E
AR = $(CROSS_COMPILE)ar
NM = $(CROSS_COMPILE)nm
STRIP = $(CROSS_COMPILE)strip
OBJCOPY = $(CROSS_COMPILE)objcopy
OBJDUMP = $(CROSS_COMPILE)objdump
MAKEFILES = $(TOPDIR)/.config
MD5SUM = md5sum
PERL = perl
AWK = awk export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE \
CONFIG_SHELL TOPDIR VIVIPATH HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \
CPP AR NM STRIP OBJCOPY OBJDUMP MAKE MAKEFILES MD5SUM PERL AWK all: do-it-all ifeq (.config,$(wildcard .config))
include .config
else
CONFIGURATION = config
do-it-all: config
endif
do-it-all: Version vivi #
# standard CFLAGS
# CPPFLAGS := -I$(VIVIPATH) -I$(LINUX_INCLUDE_DIR)
#CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -O2 \
# -fomit-frame-pointer -fno-strict-aliasing -fno-common
CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -O2 -fPIC -fomit-frame-pointer
AFLAGS := -D__ASSEMBLY__ $(CPPFLAGS) CORE_FILES = init/main.o init/version.o lib/lib.o
LIBS := lib/priv_data/priv_data.o
SUBDIRS = drivers lib DRIVERS-y :=
DRIVERS-$(CONFIG_SERIAL) += drivers/serial/serial.o
DRIVERS-$(CONFIG_MTD) += drivers/mtd/mtd.o
DRIVERS := $(DRIVERS-y) CLEAN_FILES = \
vivi-elf \
vivi \
vivi.nm \
vivi.map #
# Location of the gcc arm libs.
#
ARM_GCC_LIBS = /opt/host/armv4l/lib/gcc-lib/armv4l-unknown-linux/2.95.2
#ARM_GCC_LIBS = /opt/host/armv4l/lib/gcc-lib/armv4l-redhat-linux/2.95.3 OBJCOPYFLAGS = -R .comment -R .stab -R .stabstr CLIBS = -L$(ARM_GCC_LIBS) -lgcc -lc
LINKFLAGS = -Tarch/vivi.lds -Bstatic DISTCLEAN_FILES = \
include/autoconf.h include/version.h \
scripts/lxdialog/*.o scripts/lxdialog/lxdialog \
.menuconfig.log \
.config .config.old TAGS tags include arch/Makefile export CPPFLAGS CFLAGS AFLAGS export DRIVERS LDFLAGS Version: dummy
@rm -f include/compile.h vivi: include/version.h $(CONFIGURATION) init/main.o init/version.o linuxsubdirs
$(LD) -v $(LINKFLAGS) \
$(HEAD) \
$(CORE_FILES) \
$(DRIVERS) \
$(LIBS) \
-o vivi-elf $(CLIBS)
$(NM) -v -l vivi-elf > vivi.map
$(OBJCOPY) -O binary -S vivi-elf vivi $(OBJCOPYFLAGS) oldconfig:
$(CONFIG_SHELL) scripts/Configure -d arch/config.in config:
$(CONFIG_SHELL) scripts/Configure arch/config.in menuconfig: include/version.h
$(MAKE) -C scripts/lxdialog all
$(CONFIG_SHELL) scripts/Menuconfig arch/config.in clean:
find . \( -name '*.o' -o -name core -o -name ".*.flags" \) -type f -print \
| grep -v lxdialog/ | xargs rm -f
rm -f $(CLEAN_FILES) distclean: clean
rm -f $(DISTCLEAN_FILES) linuxsubdirs: $(patsubst %, _dir_%, $(SUBDIRS)) $(patsubst %, _dir_%, $(SUBDIRS)) : include/version.h
$(MAKE) CFLAGS="$(CFLAGS) $(CFLAGS_KERNEL)" -C $(patsubst _dir_%, %, $@) $(TOPDIR)/include/version.h: include/version.h
$(TOPDIR)/include/compile.h: include/compile.h include/compile.h: $(CONFIGURATION) include/version.h
@echo -n \#define UTS_VERSION \"\#$(VIVIRELEASE) > .ver
@if [ -f .name ]; then echo -n \-`cat .name` >> .ver; fi
@echo ' '`date`'"' >> .ver
@echo \#define VIVI_COMPILE_TIME \"`date +%T`\" >> .ver
@echo \#define VIVI_COMPILE_BY \"`whoami`\" >> .ver
@echo \#define VIVI_COMPILE_HOST \"`hostname`\" >> .ver
@if [ -x /bin/dnsdomainname ]; then \
echo \#define VIVI_COMPILE_DOMAIN \"`dnsdomainname`\"; \
elif [ -x /bin/domainname ]; then \
echo \#define VIVI_COMPILE_DOMAIN \"`domainname`\"; \
else \
echo \#define VIVI_COMPILE_DOMAIN ; \
fi >> .ver
@echo \#define VIVI_COMPILER \"`$(CC) $(CFLAGS) -v 2>&1 | tail -1`\" >> .ver
@mv -f .ver $@ include/version.h:
@echo \#define VIVI_RELEASE \"$(VIVIRELEASE)\" > .ver
@echo \#define VIVI_VERSION_CODE `expr $(VERSION) \\* 65536 + $(PATCHLEVEL) \\* 256 + $(SUBLEVEL)` >> .ver
@echo '#define VIVI_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))' >>.ver
@mv -f .ver $@ init/version.o: init/version.c include/compile.h
$(CC) $(CFLAGS) -DUTS_MACHINE='"$(ARCH)"' -c -o init/version.o init/version.c init/main.o: init/main.c
$(CC) $(CFLAGS) $(CFLAGS_KERNEL) $(PROFILING) -c -o $*.o $< TAGS: dummy
etags `find include -name '*.h'`
find $(SUBDIRS) init -name '*.[ch]' | xargs etags -a # Exuberant ctags works better with -I
tags: dummy
CTAGSF=`ctags --version | grep -i exuberant >/dev/null && echo "-I __initdata,__exitdata,EXPORT_SYMBOL,EXPORT_SYMBOL_NOVERS"`; \
ctags $$CTAGSF `find include -name '*.h'` && \
find $(SUBDIRS) init -name '*.[ch]' | xargs ctags $$CTAGSF -a %: ./arch/def-configs/%
$(MAKE) distclean
cp arch/def-configs/$* ./.config -f
$(MAKE) oldconfig
$(MAKE)
ifdef CONFIGURATION
..$(CONFIGURATION):
@echo
@echo "You have a bad or nonexistent" .$(CONFIGURATION) ": running 'make" $(CONFIGURATION)"'"
@echo
$(MAKE) $(CONFIGURATION)
@echo
@echo "Successful. Try re-making (ignore the error that follows)"
@echo
exit 1 dummy: else dummy: endif include Rules.make
PATCHLEVEL = 1
SUBLEVEL = 4 #等效于定义一个变量VIVIRELEASE=0.1.4 VIVIRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL) # 其中的:=表示直接展开式变量定义，另外一种直接用“=”表示的是递归变量定义 #指定CPU体系结构是arm构架 ARCH := arm #-x如果文件可执行则为真 #不理理解$$BASH，为什么有两个$??????????????????????? CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
else if [ -x /bin/bash ]; then echo /bin/bash; \
else echo sh; fi ; fi)
TOPDIR := $(shell /bin/pwd) #
# change this to point to the Linux include directory
#
LINUX_INCLUDE_DIR = /opt/host/armv4l/include/
VIVIPATH = $(TOPDIR)/include HOSTCC = gcc
HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer CROSS_COMPILE = /opt/host/armv4l/bin/armv4l-unknown-linux-
#CROSS_COMPILE = /opt/host/armv4l/bin/armv4l-redhat-linux- #
# Include the make variables (CC, etc...)
# AS = $(CROSS_COMPILE)as
LD = $(CROSS_COMPILE)ld
CC = $(CROSS_COMPILE)gcc
CPP = $(CC) -E
AR = $(CROSS_COMPILE)ar
NM = $(CROSS_COMPILE)nm
STRIP = $(CROSS_COMPILE)strip
OBJCOPY = $(CROSS_COMPILE)objcopy
OBJDUMP = $(CROSS_COMPILE)objdump
MAKEFILES = $(TOPDIR)/.config
MD5SUM = md5sum
PERL = perl
AWK = awk export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE \
CONFIG_SHELL TOPDIR VIVIPATH HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \
CPP AR NM STRIP OBJCOPY OBJDUMP MAKE MAKEFILES MD5SUM PERL AWK all: do-it-all ifeq (.config,$(wildcard .config))
include .config
else
CONFIGURATION = config
do-it-all: config
endif
do-it-all: Version vivi #
# standard CFLAGS
# CPPFLAGS := -I$(VIVIPATH) -I$(LINUX_INCLUDE_DIR)
#CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -O2 \
# -fomit-frame-pointer -fno-strict-aliasing -fno-common
CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -O2 -fPIC -fomit-frame-pointer
AFLAGS := -D__ASSEMBLY__ $(CPPFLAGS) CORE_FILES = init/main.o init/version.o lib/lib.o
LIBS := lib/priv_data/priv_data.o
SUBDIRS = drivers lib DRIVERS-y :=
DRIVERS-$(CONFIG_SERIAL) += drivers/serial/serial.o
DRIVERS-$(CONFIG_MTD) += drivers/mtd/mtd.o
DRIVERS := $(DRIVERS-y) CLEAN_FILES = \
vivi-elf \
vivi \
vivi.nm \
vivi.map #
# Location of the gcc arm libs.
#
ARM_GCC_LIBS = /opt/host/armv4l/lib/gcc-lib/armv4l-unknown-linux/2.95.2
#ARM_GCC_LIBS = /opt/host/armv4l/lib/gcc-lib/armv4l-redhat-linux/2.95.3 OBJCOPYFLAGS = -R .comment -R .stab -R .stabstr CLIBS = -L$(ARM_GCC_LIBS) -lgcc -lc
LINKFLAGS = -Tarch/vivi.lds -Bstatic DISTCLEAN_FILES = \
include/autoconf.h include/version.h \
scripts/lxdialog/*.o scripts/lxdialog/lxdialog \
.menuconfig.log \
.config .config.old TAGS tags include arch/Makefile export CPPFLAGS CFLAGS AFLAGS export DRIVERS LDFLAGS Version: dummy
@rm -f include/compile.h vivi: include/version.h $(CONFIGURATION) init/main.o init/version.o linuxsubdirs
$(LD) -v $(LINKFLAGS) \
$(HEAD) \
$(CORE_FILES) \
$(DRIVERS) \
$(LIBS) \
-o vivi-elf $(CLIBS)
$(NM) -v -l vivi-elf > vivi.map
$(OBJCOPY) -O binary -S vivi-elf vivi $(OBJCOPYFLAGS) oldconfig:
$(CONFIG_SHELL) scripts/Configure -d arch/config.in config:
$(CONFIG_SHELL) scripts/Configure arch/config.in menuconfig: include/version.h
$(MAKE) -C scripts/lxdialog all
$(CONFIG_SHELL) scripts/Menuconfig arch/config.in clean:
find . \( -name '*.o' -o -name core -o -name ".*.flags" \) -type f -print \
| grep -v lxdialog/ | xargs rm -f
rm -f $(CLEAN_FILES) distclean: clean
rm -f $(DISTCLEAN_FILES) linuxsubdirs: $(patsubst %, _dir_%, $(SUBDIRS)) $(patsubst %, _dir_%, $(SUBDIRS)) : include/version.h
$(MAKE) CFLAGS="$(CFLAGS) $(CFLAGS_KERNEL)" -C $(patsubst _dir_%, %, $@) $(TOPDIR)/include/version.h: include/version.h
$(TOPDIR)/include/compile.h: include/compile.h include/compile.h: $(CONFIGURATION) include/version.h
@echo -n \#define UTS_VERSION \"\#$(VIVIRELEASE) > .ver
@if [ -f .name ]; then echo -n \-`cat .name` >> .ver; fi
@echo ' '`date`'"' >> .ver
@echo \#define VIVI_COMPILE_TIME \"`date +%T`\" >> .ver
@echo \#define VIVI_COMPILE_BY \"`whoami`\" >> .ver
@echo \#define VIVI_COMPILE_HOST \"`hostname`\" >> .ver
@if [ -x /bin/dnsdomainname ]; then \
echo \#define VIVI_COMPILE_DOMAIN \"`dnsdomainname`\"; \
elif [ -x /bin/domainname ]; then \
echo \#define VIVI_COMPILE_DOMAIN \"`domainname`\"; \
else \
echo \#define VIVI_COMPILE_DOMAIN ; \
fi >> .ver
@echo \#define VIVI_COMPILER \"`$(CC) $(CFLAGS) -v 2>&1 | tail -1`\" >> .ver
@mv -f .ver $@ include/version.h:
@echo \#define VIVI_RELEASE \"$(VIVIRELEASE)\" > .ver
@echo \#define VIVI_VERSION_CODE `expr $(VERSION) \\* 65536 + $(PATCHLEVEL) \\* 256 + $(SUBLEVEL)` >> .ver
@echo '#define VIVI_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))' >>.ver
@mv -f .ver $@ init/version.o: init/version.c include/compile.h
$(CC) $(CFLAGS) -DUTS_MACHINE='"$(ARCH)"' -c -o init/version.o init/version.c init/main.o: init/main.c
$(CC) $(CFLAGS) $(CFLAGS_KERNEL) $(PROFILING) -c -o $*.o $< TAGS: dummy
etags `find include -name '*.h'`
find $(SUBDIRS) init -name '*.[ch]' | xargs etags -a # Exuberant ctags works better with -I
tags: dummy
CTAGSF=`ctags --version | grep -i exuberant >/dev/null && echo "-I __initdata,__exitdata,EXPORT_SYMBOL,EXPORT_SYMBOL_NOVERS"`; \
ctags $$CTAGSF `find include -name '*.h'` && \
find $(SUBDIRS) init -name '*.[ch]' | xargs ctags $$CTAGSF -a %: ./arch/def-configs/%
$(MAKE) distclean
cp arch/def-configs/$* ./.config -f
$(MAKE) oldconfig
$(MAKE)
ifdef CONFIGURATION
..$(CONFIGURATION):
@echo
@echo "You have a bad or nonexistent" .$(CONFIGURATION) ": running 'make" $(CONFIGURATION)"'"
@echo
$(MAKE) $(CONFIGURATION)
@echo
@echo "Successful. Try re-making (ignore the error that follows)"
@echo
exit 1 dummy: else dummy: endif include Rules.make
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