android 修改kernel编译版本信息

1，android版本：

在android/build/core/version_defaults.mk中红色部分

ifeq "" "$(BUILD_NUMBER)"

 # BUILD_NUMBER should be set to the source control value that

 # represents the current state of the source code.  E.g., a

 # perforce changelist number or a git hash.  Can be an arbitrary string

 # (to allow for source control that uses something other than numbers),

 # but must be a single word and a valid file name.

 #

 # If no BUILD_NUMBER is set, create a useful "I am an engineering build

 # from this date/time" value.  Make it start with a non-digit so that

 # anyone trying to parse it as an integer will probably get "0".

 BUILD_NUMBER := user.root.$(shell date +%Y%m%d.%H%M%S)

endif

2，kernel版本：

在kernel/script/mkcompile_h中红色部分：

 echo \#define UTS_MACHINE \"$ARCH\"

 echo \#define UTS_VERSION \"`echo $UTS_VERSION | $UTS_TRUNCATE`\"

 echo \#define LINUX_COMPILE_BY \"`echo ZT-10003G`\"

 echo \#define LINUX_COMPILE_HOST \"`echo ZT-10003G`\"

 echo \#define LINUX_COMPILER \"`$CC -v 2>&1 | tail -n 1`\"

) > .tmpcompile