OpenWrt版本控制
主要涉及文件
package/base-files/image-config.in：make menuconfig显示定义if VERSIONOPT config VERSION_DIST string prompt "Release distribution" default "OpenWrt" help This is the name of the release distribution. If unspecified, it defaults to OpenWrt. config VERSION_NICK string prompt "Release version nickname" help This is the release codename embedded in the image. If unspecified, it defaults to the name of source branch. config VERSION_NUMBER string prompt "Release version number" help This is the release version number embedded in the image. If unspecified, it defaults to the svn or git-svn revision of the build tree.
include/version.mk：里面定义了从.config读取变量赋值给makefile变量的操作并定义
VERSION_SED脚本 ，用于别的文件调用的时候，替换%M为实际的makefile变量值VERSION_PRODUCT:=$(call qstrip_escape,$(CONFIG_VERSION_PRODUCT)) VERSION_PRODUCT:=$(if $(VERSION_PRODUCT),$(VERSION_PRODUCT),Generic) VERSION_HWREV:=$(call qstrip_escape,$(CONFIG_VERSION_HWREV)) VERSION_HWREV:=$(if $(VERSION_HWREV),$(VERSION_HWREV),v0) VERSION_SED:=$(SED) 's,%U,$(VERSION_REPO),g' \ -e 's,%V,$(VERSION_NUMBER),g' \ -e 's,%v,\L$(subst $(space),_,$(VERSION_NUMBER)),g' \ -e 's,%C,$(VERSION_CODE),g' \ -e 's,%c,\L$(subst $(space),_,$(VERSION_CODE)),g' \ -e 's,%N,$(VERSION_NICK),g' \ -e 's,%n,\L$(subst $(space),_,$(VERSION_NICK)),g' \ -e 's,%D,$(VERSION_DIST),g' \ -e 's,%d,\L$(subst $(space),_,$(VERSION_DIST)),g' \ -e 's,%R,$(REVISION),g' \ -e 's,%T,$(BOARD),g' \ -e 's,%S,$(BOARD)/$(if $(SUBTARGET),$(SUBTARGET),generic),g' \ -e 's,%t,$(VERSION_TAINTS),g' \ -e 's,%M,$(VERSION_MANUFACTURER),g' \ -e 's,%P,$(VERSION_PRODUCT),g' \ -e 's,%h,$(VERSION_HWREV),g'\ -e 's,%A,$(_KBUILD_BUILD_TIMESTAMP),g' VERSION_SED_SCRIPT:=$(subst '\'','\'\\\\\'\'',$(VERSION_SED))
package/base-files/Makefile：调用VERSION_SED脚本，把文件中%M替换为对应的makefile变量$(VERSION_SED) \ $(1)/etc/banner \ $(1)/etc/openwrt_version $(VERSION_SED_SCRIPT) \ $(1)/etc/openwrt_release \ $(1)/etc/device_info \ $(1)/etc/software_info
package/base-files/files/etc/device_info：设备硬件信息
DEVICE_MANUFACTURER='%M' DEVICE_PRODUCT='%P' DEVICE_REVISION='%h'
package/base-files/files/etc/software_info
SOFTWART_VERSION='%C' SOFTWART_BUILD_INFO='%A'
package/base-files/files/etc/banner
iiii i::::i iiii wwwwwww wwwww wwwwwwwiiiiiii mmmmmmm mmmmmmm w:::::w w:::::w w:::::w i:::::i mm:::::::m m:::::::mm w:::::w w:::::::w w:::::w i::::i m::::::::::mm::::::::::m w:::::w w:::::::::w w:::::w i::::i m::::::::::::::::::::::m w:::::w w:::::w:::::w w:::::w i::::i m:::::mmm::::::mmm:::::m w:::::w w:::::w w:::::w w:::::w i::::i m::::m m::::m m::::m w:::::w:::::w w:::::w:::::w i::::i m::::m m::::m m::::m w:::::::::w w:::::::::w i::::i m::::m m::::m m::::m w:::::::w w:::::::w i::::::im::::m m::::m m::::m w:::::w w:::::w i::::::im::::m m::::m m::::m w:::w w:::w i::::::im::::m m::::m m::::m www www iiiiiiiimmmmmm mmmmmm mmmmmm ------------------------------------------------------------------------- HW INFO: MANUFACTURER:%M PRODUCT :%P VERSION :%h SW INFO: REPOSITORY :%R VERSION :%C BUILD :%A -------------------------------------------------------------------------
package/base-files/files/etc/openwrt_releaseDISTRIB_ID='%D' DISTRIB_RELEASE='%C' DISTRIB_REVISION='%R' DISTRIB_CODENAME='%n' DISTRIB_TARGET='%S' DISTRIB_DESCRIPTION='%D %N %V' DISTRIB_TAINTS='%t'
package/base-files/files/etc/openwrt_version%V
变量对应关系
VERSION_DIST
VERSION_DIST:=$(call qstrip_escape,$(CONFIG_VERSION_DIST)) VERSION_DIST:=$(if $(VERSION_DIST),$(VERSION_DIST),OpenWrt)
config VERSION_DIST string prompt "Release distribution" default "OpenWrt" help This is the name of the release distribution. If unspecified, it defaults to OpenWrt.
VERSION_NICK
VERSION_NICK:=$(call qstrip_escape,$(CONFIG_VERSION_NICK)) VERSION_NICK:=$(if $(VERSION_NICK),$(VERSION_NICK),$(RELEASE))
string prompt "Release version nickname" help This is the release codename embedded in the image. If unspecified, it defaults to the name of source branch.
注意：默认
RELEASE:=Chaos CalmerVERSION_NUMBER
VERSION_NUMBER:=$(call qstrip_escape,$(CONFIG_VERSION_NUMBER)) VERSION_NUMBER:=$(if $(VERSION_NUMBER),$(VERSION_NUMBER),15.05.1)
string prompt "Release version number" help This is the release version number embedded in the image. If unspecified, it defaults to the svn or git-svn revision of the build tree.
VERSION_REPO：代码仓库，默认是openwrt的
VERSION_REPO:=$(call qstrip_escape,$(CONFIG_VERSION_REPO)) VERSION_REPO:=$(if $(VERSION_REPO),$(VERSION_REPO),http://downloads.openwrt.org/%n/%v/%S/packages)
string prompt "Release repository" default "http://downloads.openwrt.org/%n/%v/%S/packages" help This is the repository address embedded in the image, it defaults to the trunk snapshot repo; the url may contain the following placeholders: %R .. Revision number %V .. Release version or revision number, uppercase %v .. Release version or revision number, lowercase %C .. Release version or "Bleeding Edge", uppercase %c .. Release version or "bleeding_edge", lowercase %N .. Release name, uppercase %n .. Release name, lowercase %D .. Distribution name or "OpenWrt", uppercase %d .. Distribution name or "openwrt", lowercase %T .. Target name %S .. Target/Subtarget name %t .. Build taint flags, e.g. "no-all busybox" %M .. Manufacturer name or "OpenWrt" %P .. Product name or "Generic" %h .. Hardware revision or "v0"
VERSION_MANUFACTURER：生产厂商名字
VERSION_MANUFACTURER:=$(call qstrip_escape,$(CONFIG_VERSION_MANUFACTURER)) VERSION_MANUFACTURER:=$(if $(VERSION_MANUFACTURER),$(VERSION_MANUFACTURER),OpenWrt)
string prompt "Manufacturer name" help This is the manufacturer name embedded in /etc/device_info Useful for OEMs building OpenWrt based firmware
VERSION_PRODUCT：产品名称
VERSION_PRODUCT:=$(call qstrip_escape,$(CONFIG_VERSION_PRODUCT)) VERSION_PRODUCT:=$(if $(VERSION_PRODUCT),$(VERSION_PRODUCT),Generic)
string prompt "Product name" help This is the product name embedded in /etc/device_info Useful for OEMs building OpenWrt based firmware
VERSION_HWREV：硬件版本
VERSION_HWREV:=$(call qstrip_escape,$(CONFIG_VERSION_HWREV)) VERSION_HWREV:=$(if $(VERSION_HWREV),$(VERSION_HWREV),v0)
string prompt "Hardware revision" help This is the hardware revision string embedded in /etc/device_info Useful for OEMs building OpenWrt based firmware
VERSION_CODE：软件版本：
VERSION_CODE:=$(call qstrip_escape,$(CONFIG_VERSION_CODE)) VERSION_CODE:=$(if $(VERSION_CODE),$(VERSION_CODE),QSDK11.4-V1.0.0)
VERSION_SED：脚本，用来替换文件中的%的
VERSION_SED:=$(SED) 's,%U,$(VERSION_REPO),g' \ -e 's,%V,$(VERSION_NUMBER),g' \ -e 's,%v,\L$(subst $(space),_,$(VERSION_NUMBER)),g' \ -e 's,%C,$(VERSION_CODE),g' \ -e 's,%c,\L$(subst $(space),_,$(VERSION_CODE)),g' \ -e 's,%N,$(VERSION_NICK),g' \ -e 's,%n,\L$(subst $(space),_,$(VERSION_NICK)),g' \ -e 's,%D,$(VERSION_DIST),g' \ -e 's,%d,\L$(subst $(space),_,$(VERSION_DIST)),g' \ -e 's,%R,$(REVISION),g' \ -e 's,%T,$(BOARD),g' \ -e 's,%S,$(BOARD)/$(if $(SUBTARGET),$(SUBTARGET),generic),g' \ -e 's,%t,$(VERSION_TAINTS),g' \ -e 's,%M,$(VERSION_MANUFACTURER),g' \ -e 's,%P,$(VERSION_PRODUCT),g' \ -e 's,%h,$(VERSION_HWREV),g' VERSION_SED_SCRIPT:=$(subst '\'','\'\\\\\'\'',$(VERSION_SED))
总结：