1 This is source release of the Android emulator. simply run the "build-emulator.sh" script to 2 generate a statically linked "emulator" binary in the current directory. 3 4 you can also use the "--target=<path>" option to install the executable into a different location, 5 6 At the moment, only Linux and Mac OS X are supported. 7 8 This emulator is probably not usable without other support files provided by the Android project, 9 like a specific kernel image, ramdisk, system and user disk images. Please go to the Android web 10 site for more details. 11 12 This emulator is licensed under the GNU General Public License (GPL) version 2, which can be 13 found in the file "qemu/COPYING". 14 15 it is based on QEMU 0.8.2 with many changes used to support the following features: 16 17 - additionnal hardware support for some Android reference boards. 18 19 - various OS-X related patches to make everything compile cleanly with GCC 4.1 and 20 beyond. this includes better support for the Mach-O binary format 21 22 - support for instruction-level profiling and data cache simulation. this allows the 23 emulator to generate "profile" files that can later be analyzed with external tools 24 to provide accurate information about what's happening in the system 25 26 - changes in the dynamic code generators, mainly to support concurrent generators in 27 a single binary (this allows us to use different generators for profiling and 28 non-profiling modes, and switch between them dynamically at runtime when needed) 29 30 - support for network throttling and latency simulation, used to better emulate the 31 network conditions of radio networks. 32 33 - a new graphical user interface capable of displaying and rotating "device skins" 34 35 - an optional (and disabled by default) "polling" runtime mode that doesn't use 36 SIGALRM signals to implement timers. this makes for much better timing accuracy 37 when using "old" emukated Linux kernels, at the cost of using 100% CPU, even when 38 the guest system is idle. This is now disabled since Linux 2.6.21 and beyond use 39 "dynamic ticks" that make this mode un-necessary for Android. 40 41 42 it also uses a patched version of LibSDL-1.2.15. 43