是的，Bitbake可以通过使用“devshell”来实现仅编译被修改的源代码文件。具体步骤如下：

1. 在recipe文件中添加以下内容：

do_compile_prepend() {
    oe_runmake -t ${S} > ${S}/.buildtime.old
}

do_compile() {
    # Run the task only if there are files to build
    if [ -f ${S}/.buildtime.old ]; then
        oe_runmake -q ${S} > /dev/null 2> /dev/null
        if [ "$?" != "0" ]; then
            oe_runmake -t ${S} > ${S}/.buildtime.new
        else
            touch ${S}/.buildtime.new
        fi

        if [ "`cat ${S}/.buildtime.old`" = "`cat ${S}/.buildtime.new`" ]; then
            echo "No files were changed; skipping build..."
            return
        fi
    fi

    # Compile only modified files
    ${devshell} make

    # Store the build time of the sources
    oe_runmake -t ${S} > ${S}/.buildtime.old
}

2. 执行bitbake命令时添加参数“devshell”：

$ bitbake -c devshell 

通过以上方法，Bitbake将会仅编译被修改的源代码文件，从而实现增量编译。