时尚家居频道
2020年4月30日星期四
Android.mk(零)
Android.mk(零)
Android.mk可以生产的基本文件
 //返回该Android.mk所在目录的路径，必须放在第一行 定义了当前模块的相对路径</p><p>include $(CLEAR_VARS) //清除变量 清空当前环境变量</p><p>LOCAL_MODULE:=test //生产目标文件 编译生成的目标名称</p><p>LOCAL_SRC_FILES:=test.c //源文件 编译该模块需要的源文件</p><p>LOCAL_MODULE_PATH:= $(LOCAL_PATH) //把目标文件生成在当前目录下</p><p>include $(BUILD_EXECUTABLE) //生成目标格式 编译所生成的目标文件格式</p><p>使用连接符来编译多个文件<br>LOCAL_SRC_FILES:=test.c <br>test2.c</p><ol><li></li></ol><p><code>my-dir的定义</code><br>build/core/definitions.mk</p><pre><code >define my-dir$(strip \ $(eval LOCAL_MODULE_MAKEFILE := $$(lastword $$(MAKEFILE_LIST))) \ $(if $(filter $(BUILD_SYSTEM)/% $(OUT_DIR)/%,$(LOCAL_MODULE_MAKEFILE)), \ $(error my-dir must be called before including any other makefile.) \ , \ $(patsubst %/,%,$(dir $(LOCAL_MODULE_MAKEFILE))) \ ) \)endef</code></pre><p><code>MAKEFILE_LIST</code> ：在编译的时候，把当前目录下的所有Android.mk加载到这个里面<br><code>lastword</code>：取最后的MAKEFILE<br>这个环境变量中是否包含LOCAL_MODULE_MAKEFILE，如果包含，则Android.mk有问题，打印错误：<code>error my-dir must be called before including any other makefile</code>，没有错误，则返回当前Android.mk的所在目录。</p><p>2.清空所有的环境变量:build/core/clear_vars.mk 这个目录下的所有环境变量</p><p>3.生产格式，二进制文件</p><p>编程中我们会遇到多少挫折？表放弃，沙漠尽头必是绿洲。</p><br />
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