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| author | Jim Grosbach <grosbach@apple.com> | 2008-10-20 21:39:23 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2008-10-20 21:39:23 +0000 |
| commit | 932a32d2512353478d16c4101582adff404a55a5 (patch) | |
| tree | b7c612f52251795f1bcc239b592f57ff89e9fbf4 /lib/System/Unix | |
| parent | d659d50482e2f9edf8f436e4a1aa30c68c6d020b (diff) | |
| download | external_llvm-932a32d2512353478d16c4101582adff404a55a5.zip external_llvm-932a32d2512353478d16c4101582adff404a55a5.tar.gz external_llvm-932a32d2512353478d16c4101582adff404a55a5.tar.bz2 | |
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
Diffstat (limited to 'lib/System/Unix')
| -rw-r--r-- | lib/System/Unix/Memory.inc | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/System/Unix/Memory.inc b/lib/System/Unix/Memory.inc index 646311d..cfc5a68 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 +} |