Cider. Native Execution of ios Apps on Android. Alexander Van't Hof, Naser AlDuaij, Christoffer Dall, Nicolas Viennot, Jason Nieh. Columbia University

Transcription

1 Cider Native Execution of Apps on Jeremy Andrus Alexander Van't Hof, Naser AlDuaij, Christoffer Dall, Nicolas Viennot, Jason Nieh Columbia University In the City of New York March 4, 2014 ASPLOS 2014, Salt Lake City, UT!1

2

3 The Goal!3

4 Virtualization!4

5 Binary Compatibility Wine API Reimplementation immense implementation! 20 years later: still incomplete!5

6 Binary Compatibility Kernel ABI Compatibility BSD Linux Compatibility missing kernel subsystem! opaque driver interfaces!6

7 Cider : OS Compatibility Direct execution of unmodified apps" Reuse existing libraries" Reuse existing open source kernel code" apps can use libraries!7

8 Cider : OS Compatibility distinguish and Linux threads" " " XNU code in the Linux kernel" " apps use libraries!8

9 Cider : OS Compatibility XNU syscall Linux syscall Cider Linux Kernel Mach-O Loader!9

10 Per-Thread XNU syscall Linux syscall Cider Linux Kernel Persona Management Mach-O Loader!10

11 Cider : OS Compatibility XNU Source Mach IPC XNU syscall Linux syscall Cider Linux Kernel Persona Management Mach-O Loader!11

12 Duct tape XNU Source Mach IPC XNU syscall Linux syscall Cider Linux Kernel Persona Management Mach-O Loader!12

13 Duct tape XNU Source Foreign Zone Mach IPC Zone Domestic Zone!13

14 Duct tape lck_mtx_lock() mutex_lock() lck_mtx_t struct mutex XNU Source Mach IPC Linux kernel" memory, synch," list management, etc. Synchronization, List Mgmt Mach Semantics Mach IPC syscall stubs kmalloc, spinlock, list!14

15 Duct tape XNU Source Mach IPC Cider" Linux" Kernel Synchronization, List Mgmt Mach Semantics kmalloc, spinlock, list Mach IPC syscall stubs!15

16 Cider : OS Compatibility OpenGL Apple GPU?! XNU Source Mach IPC XNU syscall Linux syscall Cider Linux Kernel Persona Management Mach-O Loader!16

17 Cider : OS Compatibility ELF?? OpenGL?? XNU Source Mach IPC XNU syscall Linux syscall Cider Linux Kernel Persona Management Mach-O Loader!17

18 Cider : OS Compatibility OpenGL?? XNU Source Mach IPC XNU syscall Linux syscall Cider Linux Kernel Persona Management Mach-O Loader!18

19 Libraries diplomats XNU Source Mach IPC XNU syscall Linux syscall Cider Linux Kernel Persona Management Mach-O Loader!19

20 App links against diplomats - not symbols! diplomats Libraries afunc() XNU syscall Persona Management Linux syscall Cider Linux Kernel!20

21 Cider : Architecture launchd Mach" IPC Services configd Libraries diplomats XNU Source Mach IPC XNU syscall Linux syscall Cider Linux Kernel Persona Management Mach-O Loader!21

22 Cider: Prototype Apps! Nexus 7 (Tegra)" Integrated app launch Apps!!22

23 Cider: Prototype Nexus 7 (Tegra)" Full multi-touch support" OpenGL for 2D/3D graphics!23

24 Cider: Experimental Results PassMark benchmark application" App" Stock Nexus 7" Cider" App" Cider" ipad mini!24

25 PassMark Benchmark 20! Cider! 15! Cider!! 10! 5! 0! 4! 3! 2! 1! om pr es si on St! or ag e W rit e! St or ag e Re ad M em! or y W rit M e! em or y Re ad! io n! pt! So rt C En cr y D at a D at a nd om St r in g Pr im es! nd Fi Ra Fl oa t in g In t eg e Po in t! r! 0! Normalized Performance Normalized Performance Cider: Experimental Results!25

26 eg e Fl r! oa So tin lid g Po V ec in Tr to t! an F rs sp ind! Ra ar P nd en rim om t V es ec! S tr tor C om in s! g D pl So at ex a V rt! En e cr cto IDm yp rs atag tio! a e n! CR ome pnrde esri sing on! SIm to! arag gee FW iltr eirte S s! Si to m ra pl g e er 3D e ad M T C em es! om o t! r pl y ex W M 3D rite em Te! or st! y Re ad! In t 15! Cider!! Cider: Experimental Results PassMark Benchmark 20! 2.0! Cider!! Cider!! 1.5! 10! 5! 1.0! 0! 4! 3! 0.5! 2! 1! 0.0! 0! 54

27 Cider: Experimental Results PassMark Benchmark 2.0! Cider! Cider!! 1.5! 1.0! 0.5! Tr a So lid Ve ct or s! ns pa re nt Ve ct or C om s! pl ex Ve ct Im or s! ag e Re nd er in g! Im ag e Fi lte rs Si! m pl e 3D Te C st om! pl ex 3D Te st! 0.0!!27

28 Conclusion Direct execution of unmodified apps" Per-thread " "!28

29 Thank You Cider Logo design by: Steve Lovelace (