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
