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-rw-r--r--lib/System/Unix/Memory.cpp70
1 files changed, 0 insertions, 70 deletions
diff --git a/lib/System/Unix/Memory.cpp b/lib/System/Unix/Memory.cpp
deleted file mode 100644
index 370b318955..0000000000
--- a/lib/System/Unix/Memory.cpp
+++ /dev/null
@@ -1,70 +0,0 @@
-//===- Unix/Memory.cpp - Generic UNIX System Configuration ------*- 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 defines some functions for various memory management utilities.
-//
-//===----------------------------------------------------------------------===//
-
-#include "Unix.h"
-#include "llvm/System/Process.h"
-
-#ifdef HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#endif
-
-namespace llvm {
-
-/// 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 then jump to it. Getting this type of memory
-/// is very OS specific.
-///
-MemoryBlock Memory::AllocateRWX(unsigned NumBytes) {
- if (NumBytes == 0) return MemoryBlock();
-
- long pageSize = Process::GetPageSize();
- unsigned NumPages = (NumBytes+pageSize-1)/pageSize;
-
- int fd = -1;
-#ifdef NEED_DEV_ZERO_FOR_MMAP
- static int zero_fd = open("/dev/zero", O_RDWR);
- if (zero_fd == -1) {
- ThrowErrno("Can't open /dev/zero device");
- }
- fd = zero_fd;
-#endif
-
- int flags = MAP_PRIVATE |
-#ifdef HAVE_MMAP_ANONYMOUS
- MAP_ANONYMOUS
-#else
- MAP_ANON
-#endif
- ;
- void *pa = ::mmap(0, pageSize*NumPages, PROT_READ|PROT_WRITE|PROT_EXEC,
- flags, fd, 0);
- if (pa == MAP_FAILED) {
- ThrowErrno("Can't allocate RWX Memory");
- }
- 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)) {
- ThrowErrno("Can't release RWX Memory");
- }
-}
-
-}
-
-// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab