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On Darwin ARM, memory needs special handling to do JIT. This patch expands

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this handling to work properly for modifying stub functions, relocations
back to entry points after JIT compilation, etc..


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57013 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach
2008-10-03 16:17:20 +00:00
parent 48b828fdb4
commit cce6c297c5
6 changed files with 66 additions and 15 deletions
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11
lib/System/Memory.cpp
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@ -58,14 +58,3 @@ void llvm::sys::Memory::InvalidateInstructionCache(const void *Addr,
#endif // end PPC
}
bool llvm::sys::Memory::SetRXPrivilege(const void *Addr, size_t Size) {
#if defined(__APPLE__) && defined(__arm__)
kern_return_t kr = vm_protect(mach_task_self(), (vm_address_t)Addr,
(vm_size_t)Size, 0,
VM_PROT_READ | VM_PROT_EXECUTE | VM_PROT_COPY);
return KERN_SUCCESS == kr;
#else
return true;
#endif
}