AppNinja 开发手记6: 编译 xnu-2050 内核，并用红雪启动内核_macos 和 ios 内核 xnu 可编译源代码

AppNinja 开发手记6: 编译 xnu-2050 内核，并用红雪启动内核
学习心得:  A4 Ramdisk  wino
http://blog.csdn.net/a2831942318
Written by AppNinja 开发手记


1. compile environment


MacOS xcode4.6 xnu-2050


http://www.opensource.apple.com/tarballs/xnu/xnu-2050.18.24.tar.gz


$ curl -O http://opensource.apple.com/tarballs/dtrace/dtrace-96.tar.gz
$ curl -O http://opensource.apple.com/tarballs/AvailabilityVersions/AvailabilityVersions-4.2.tar.gz
$ curl -O http://www.opensource.apple.com/tarballs/xnu/xnu-2050.18.24.tar.gz


$ tar zxf dtrace-96.tar.gz
$ tar zxf AvailabilityVersions-4.2.tar.gz
$ tar zxf xnu-2050.7.9.tar.gz 


$ cd dtrace-96
$ mkdir -p obj sym dst
$ xcodebuild install -target ctfconvert -target ctfdump -target ctfmerge ARCHS="x86_64" SRCROOT=$PWD OBJROOT=$PWD/obj SYMROOT=$PWD/sym DSTROOT=$PWD/dst
$ sudo ditto $PWD/dst/usr/local /usr/local
Password:
$ cd ..


$ cd AvailabilityVersions-4.2
$ mkdir -p dst
$ make install SRCROOT=$PWD DSTROOT=$PWD/dst
$ sudo ditto $PWD/dst/usr/local /usr/local
$ cd ..


$ cd xnu-2050.18.24
$ make ARCH_CONFIGS=X86_64 KERNEL_CONFIGS=RELEASE  CWARNFLAGS_STD="-Wall" CXXWARNFLAGS_STD="-Wall"


Building xnu with clang
You can build xnu with clang from Xcode 4.1 by doing:


$ make ARCH_CONFIGS="X86_64 I386" CC=clang CXX=clang++ CWARNFLAGS_STD="-Wall" CXXWARNFLAGS_STD="-Wall"


2、compile xnu arm kernel param


   make TARGET_CONFIGS="debug arm S5L8930X"    
   generate: mach_kernel


3、download http://appldnld.apple.com/iPhone4/061-8490.20100901.hyjtR/iPod4,1_4.1_8B117_Restore.ipsw


   4.1 版本的 ipsw。A4 处理器 iPhone4, iPad1, iPod4G。


4、设备进入 DFU 模式，红雪引导启动内核


   redsn0wB5.exe -i "iPod4,1_4.1_8B117_Restore.ipsw" -k mach_kernel


5、启动到 "Still waiting for root device"。

6、如果载入 rawdisk，出现 login 提示。