From 932a32d2512353478d16c4101582adff404a55a5 Mon Sep 17 00:00:00 2001 From: Jim Grosbach Date: Mon, 20 Oct 2008 21:39:23 +0000 Subject: Update the stub and callback code to handle lazy compilation. The stub is re-written by the callback to branch directly to the compiled code in future invocations. Added back in range-based memory permission functions for the updating of the stub on Darwin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57846 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/System/Unix/Memory.inc | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'lib/System/Unix/Memory.inc') diff --git a/lib/System/Unix/Memory.inc b/lib/System/Unix/Memory.inc index 646311d8cd..cfc5a6871d 100644 --- a/lib/System/Unix/Memory.inc +++ b/lib/System/Unix/Memory.inc @@ -127,3 +127,24 @@ bool llvm::sys::Memory::setExecutable (MemoryBlock &M, std::string *ErrMsg) { #endif } +bool llvm::sys::Memory::setRangeWritable(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_WRITE); + return KERN_SUCCESS == kr; +#else + return true; +#endif +} + +bool llvm::sys::Memory::setRangeExecutable(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 +} -- cgit v1.2.3