For PR351:

* Consolidate implementation for Unix systems into Unix/Memory.cpp
* Avoid use of symbolic link to #include platform-specific implementation.

llvm-svn: 19152

1 files changed, 0 insertions, 63 deletions

diff --git a/llvm/lib/System/Darwin/Memory.cpp b/llvm/lib/System/Darwin/Memory.cpp
deleted file mode 100644
index 5735ebac2ab..00000000000
--- a/llvm/lib/System/Darwin/Memory.cpp
+++ /dev/null
@@ -1,63 +0,0 @@
-//===- Darwin/Memory.cpp - Darwin Memory Implementation ---------*- C++ -*-===//
-// 
-//                     The LLVM Compiler Infrastructure
-//
-// This file was developed by Reid Spencer and is distributed under the 
-// University of Illinois Open Source License. See LICENSE.TXT for details.
-// 
-//===----------------------------------------------------------------------===//
-//
-// This file provides the Darwin specific implementation of various Memory
-// management utilities
-//
-//===----------------------------------------------------------------------===//
-
-// Include the generic unix implementation
-#include "../Unix/Memory.cpp"
-#include "llvm/System/Process.h"
-#include <sys/mman.h>
-
-namespace llvm {
-using namespace sys;
-
-//===----------------------------------------------------------------------===//
-//=== WARNING: Implementation here must contain only Darwin-specific code 
-//===          and must not be generic UNIX code (see ../Unix/Memory.cpp)
-//===----------------------------------------------------------------------===//
-
-/// AllocateRWXMemory - Allocate a slab of memory with read/write/execute
-/// permissions.  This is typically used for JIT applications where we want
-/// to emit code to the memory and then jump to it.  Getting this type of memory
-/// is very OS-specific.
-///
-MemoryBlock Memory::AllocateRWX(unsigned NumBytes) {
-  if (NumBytes == 0) return MemoryBlock();
-
-  static const long pageSize = Process::GetPageSize();
-  unsigned NumPages = (NumBytes+pageSize-1)/pageSize;
-
-  void *pa = mmap(0, pageSize*NumPages, PROT_READ|PROT_WRITE|PROT_EXEC,
-                  MAP_PRIVATE|MAP_ANON, -1, 0);
-  if (pa == MAP_FAILED) {
-    char msg[MAXPATHLEN];
-    strerror_r(errno, msg, MAXPATHLEN-1);
-    throw std::string("Can't allocate RWX Memory: ") + msg;
-  }
-  MemoryBlock result;
-  result.Address = pa;
-  result.Size = NumPages*pageSize;
-  return result;
-}
-
-void Memory::ReleaseRWX(MemoryBlock& M) {
-  if (M.Address == 0 || M.Size == 0) return;
-  if (0 != munmap(M.Address, M.Size)) {
-    char msg[MAXPATHLEN];
-    strerror_r(errno, msg, MAXPATHLEN-1);
-    throw std::string("Can't release RWX Memory: ") + msg;
-  }
-}
-
-}
-
-// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab