#8561: Clang/iOS: __builtin___clear_cache doesn't exist in clang, use __clear_cache instead -------------------------------------+------------------------------------- Reporter: lukexi | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.6.3 Resolution: | Keywords: Operating System: Other | Architecture: Unknown/Multiple Type of failure: Building GHC | Difficulty: Easy (less than 1 failed | hour) Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------- Comment (by thoughtpolice): A few years ago I helped Mike Pall (of LuaJIT) dig into using the JIT component on iOS, which involved finding a way to clear the icache. I dug up the code. On Darwin, the trick seems to be `sys_icache_invalidate`: http://repo.or.cz/w/luajit-2.0.git/blob/HEAD:/src/lj_mcode.c#l31 I imagine this still works, but I can't test it (I no longer have a jailbroken iOS device where the JIT would work.) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8561#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler