/****************************************************************************
* I.MX6 Android busybox 从哪里生成的
* 说明:
* 一直在Android中找busybox的源代码在哪里,在external文件夹下有一份busybox
* 源代码,但是没有Android.mk,以为应该是将Android.mk文件放在了别的地方,结果
* 找出来是别的地方放了一份编译好的busybox可执行文件。
*
* 2016-8-20 深圳 南山平山村 曾剑锋
***************************************************************************/
一、参考文档:
1. 怎样判断两个bin文件,是不是同一个文件。。两个bin文件,名字不同。不知道内容是不是一样的。
http://zhidao.baidu.com/question/486446127.html
2. linux md5sum 的用法(转)
http://www.cnblogs.com/chenwenbiao/archive/2012/07/10/2585507.html
二、原因:
在~/myandroid/external/busybox目录下并没有找到对应Android.mk文件,说明busybox并不是从这份源代码中生成出来的,而是从别的地方生成的,于是得重新找busybox真是的出处。
三、cat ~/myandroid/device/fsl-proprietary/test/Android.mk
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := mxc_ipudev_test
LOCAL_MODULE_TAGS := eng
LOCAL_MODULE_PATH := $(TARGET_OUT)/bin
LOCAL_MODULE_CLASS := EXECUTABLES
LOCAL_SRC_FILES := bin/mxc_ipudev_test
include $(BUILD_PREBUILT)
include $(CLEAR_VARS)
LOCAL_MODULE := mxc_vpu_test
LOCAL_MODULE_TAGS := eng
LOCAL_MODULE_PATH := $(TARGET_OUT)/bin
LOCAL_MODULE_CLASS := EXECUTABLES
LOCAL_SRC_FILES := bin/mxc_vpu_test
include $(BUILD_PREBUILT)
include $(CLEAR_VARS)
LOCAL_MODULE := busybox
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_PATH := $(TARGET_OUT)/bin
LOCAL_MODULE_CLASS := EXECUTABLES
LOCAL_SRC_FILES := bin/busybox
include $(BUILD_PREBUILT)
四、检查两个busybox是否是同一个busybox:
myzr@myzr:~/myandroid/device/fsl-proprietary/test/bin$ stat busybox
File: `busybox'
Size: 1634104 Blocks: 3192 IO Block: 4096 regular file
Device: 801h/2049d Inode: 1313488 Links: 1
Access: (0775/-rwxrwxr-x) Uid: ( 1000/ myzr) Gid: ( 1000/ myzr)
Access: 2016-08-20 11:09:25.828600234 +0800
Modify: 2014-04-11 14:10:13.000000000 +0800
Change: 2015-04-02 14:43:27.691788786 +0800
Birth: -
myzr@myzr:~/myandroid/device/fsl-proprietary/test/bin$ stat /home/myzr/myandroid/out/target/product/sabresd_6dq/obj/EXECUTABLES/busybox_intermediates/busybox
File: `/home/myzr/myandroid/out/target/product/sabresd_6dq/obj/EXECUTABLES/busybox_intermediates/busybox'
Size: 1634104 Blocks: 3192 IO Block: 4096 regular file
Device: 801h/2049d Inode: 1225352 Links: 1
Access: (0775/-rwxrwxr-x) Uid: ( 1000/ myzr) Gid: ( 1000/ myzr)
Access: 2016-07-18 12:31:09.275109144 +0800
Modify: 2016-07-18 12:31:09.255109144 +0800
Change: 2016-07-18 12:31:09.255109144 +0800
Birth: -
myzr@myzr:~/myandroid/device/fsl-proprietary/test/bin$ md5sum /home/myzr/myandroid/out/target/product/sabresd_6dq/obj/EXECUTABLES/busybox_intermediates/busybox
7acb4ae8ca9bff56200c3d8ea54926a9 /home/myzr/myandroid/out/target/product/sabresd_6dq/obj/EXECUTABLES/busybox_intermediates/busybox
myzr@myzr:~/myandroid/device/fsl-proprietary/test/bin$ md5sum busybox
7acb4ae8ca9bff56200c3d8ea54926a9 busybox
myzr@myzr:~/myandroid/device/fsl-proprietary/test/bin$