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| author | Evan Cheng <evan.cheng@apple.com> | 2008-09-18 07:54:21 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-09-18 07:54:21 +0000 |
| commit | 5cc53c34c366fa8b6e389c7c1751c50c0f64041a (patch) | |
| tree | 00effcc2f02134686e78be25d8938c46d4ed3992 /llvm/lib/System/Memory.cpp | |
| parent | 933b392f657c6abcc6bca68bc14cf77301c6d4cc (diff) | |
| download | bcm5719-llvm-5cc53c34c366fa8b6e389c7c1751c50c0f64041a.tar.gz bcm5719-llvm-5cc53c34c366fa8b6e389c7c1751c50c0f64041a.zip | |
Preliminary support for systems which require changing JIT memory regions privilege from read / write to read / executable.
llvm-svn: 56303
Diffstat (limited to 'llvm/lib/System/Memory.cpp')
| -rw-r--r-- | llvm/lib/System/Memory.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/lib/System/Memory.cpp b/llvm/lib/System/Memory.cpp index 3660bcb1a4a..2fc6a23a3af 100644 --- a/llvm/lib/System/Memory.cpp +++ b/llvm/lib/System/Memory.cpp @@ -58,3 +58,14 @@ 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 +} |
