I.MX6 system.img unpack repack
/*************************************************************************
* I.MX6 system.img unpack repack
* 说明:
* 以前的system.img直接ext4的,现在的system.img是data类型的,需要工具
* 进行转换才行,需要这些工具主要是还是为了减少开发中编译等待时间过长。
*
* 2016-9-10 深圳 南山平山村 曾剑锋
************************************************************************/ 一、参考文档:
. Android中system.img的两种格式及其相互转换方法
http://www.th7.cn/Program/Android/201501/381202.shtml
. ext4 unpack/repack tools
http://web.djodjo.org/article/download/android/tools/x86_linux/ext4tools 二、执行命令:
. source ./build/envsetup.sh
. make img2simg_host 三、编译输出信息:
......
including ./system/security/softkeymaster/Android.mk ...
including ./system/vold/Android.mk ...
including ./tools/external/fat32lib/Android.mk ...
*** Overlay change detected, clean shared intermediate files...
*** rm -rf out/target/common/obj/APPS/framework-res_intermediates out/target/common/obj/APPS/Launcher2_intermediates out/target/common/obj/APPS/SettingsProvider_intermediates out/target/common/obj/APPS/Settings_intermediates out/target/common/obj/APPS/Bluetooth_intermediates
Import includes file: out/host/linux-x86/obj32/EXECUTABLES/img2simg_host_intermediates/import_includes
Header: out/target/product/generic/obj/include/libexpat/expat.h
Header: out/target/product/generic/obj/include/libexpat/expat_external.h
Header: out/target/product/generic/obj/include/libpng/png.h
Header: out/target/product/generic/obj/include/libpng/pngconf.h
Header: out/target/product/generic/obj/include/libpng/pngusr.h
Header: out/target/product/generic/obj/include/selinux/selinux.h
Header: out/target/product/generic/obj/include/selinux/label.h
Header: out/target/product/generic/obj/include/selinux/context.h
Header: out/target/product/generic/obj/include/selinux/avc.h
Header: out/target/product/generic/obj/include/selinux/android.h
Header: out/target/product/generic/obj/include/libsonivox/eas.h
Header: out/target/product/generic/obj/include/libsonivox/eas_types.h
Header: out/target/product/generic/obj/include/libsonivox/eas_reverb.h
Header: out/target/product/generic/obj/include/libsonivox/jet.h
Header: out/target/product/generic/obj/include/libsonivox/ARM_synth_constants_gnu.inc
Header: out/target/product/generic/obj/include/libwpa_client/wpa_ctrl.h
Header: out/target/product/generic/obj/include/libwpa_client/qca-vendor.h
host C: img2simg_host <= system/core/libsparse/img2simg.c
Export includes file: system/core/libsparse/Android.mk -- out/host/linux-x86/obj32/EXECUTABLES/img2simg_host_intermediates/export_includes
host Executable: img2simg_host (out/host/linux-x86/obj32/EXECUTABLES/img2simg_host_intermediates/img2simg)
Install: out/host/linux-x86/bin/img2simg #### make completed successfully (: (mm:ss)) #### zengjf@zengjf:~/myandroid$ 四、真正的img2simg
. 上面编译出来的img2simg还是有问题,会报如下错误:
zengjf@zengjf:~/myandroid$ img2simg out/target/product/sabresd_6dq/obj/PACKAGING/systemimage_intermediates/system.img system.img
img2simg: ../../core/libsparse/sparse.c:: write_all_blocks: Assertion `pad >= ' failed.
Aborted (core dumped)
. 下载参考文档中的img2simg,验证可行。
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