b UIApplicatioinMain 断下后，找到基地址。。。dump ，copy，past 修改 cryptid ，ok！
不用 下面几个还好些。。。
(gdb) set sharedlibrary load-rules ".*" ".*" none
(gdb) set inferior-auto-start-dyld off
(gdb) set sharedlibrary preload-libraries off
(gdb) rb doModInitFunctions
请教: ios6下调试,断点不成功
(gdb) set sharedlibrary load-rules ".*" ".*" none
(gdb) set inferior-auto-start-dyld off
(gdb) set sharedlibrary preload-libraries off
(gdb) rb doModInitFunctions
Breakpoint 1 at 0x2fe0d48a
<function, no debug info> __dyld__ZN16ImageLoaderMachO18doModInitFunctionsERKN11ImageLoader11LinkContextE;
(gdb) r
Starting program: /private/var/mobile/Applications/B19BE2A1-1BF4-4DED-863B-2A335C9AAA52/iRead.app/iRead
