[llvm-commits] CVS: llvm/lib/System/Win32/Memory.cpp Path.cpp

[Reid Spencer]

Changes in directory llvm/lib/System/Win32:

Memory.cpp added (r1.1)
Path.cpp added (r1.1)
---
Log message:

Provide initial implementations of Memory and Process concepts for various
platforms.
Implement GetLLVMSuffix function for the Path concept.


---
Diffs of the changes:  (+77 -0)

Index: llvm/lib/System/Win32/Memory.cpp
diff -c /dev/null llvm/lib/System/Win32/Memory.cpp:1.1
*** /dev/null	Fri Sep 10 23:59:40 2004
--- llvm/lib/System/Win32/Memory.cpp	Fri Sep 10 23:59:30 2004
***************
*** 0 ****
--- 1,44 ----
+ //===- Win32/Memory.cpp - Win32 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 Win32 specific implementation of various Memory
+ // management utilities
+ //
+ //===----------------------------------------------------------------------===//
+ 
+ #include <llvm/System/Process.h>
+ #include "windows.h"
+ 
+ namespace llvm {
+ using namespace sys;
+ 
+ //===----------------------------------------------------------------------===//
+ //=== WARNING: Implementation here must contain only Win32 specific code.
+ //===----------------------------------------------------------------------===//
+ 
+ void* Memory::AllocateRWX(Memory&M, unsigned NumBytes) {
+   if (NumBytes == 0) return 0;
+ 
+   unsigned pageSize = Process::GetPageSize();
+   unsigned NumPages = (NumBytes+pageSize-1)/pageSize;
+   void *P = VirtualAlloc(0, NumPages*pageSize, MEM_COMMIT, 
+                          PAGE_EXECUTE_READWRITE);
+   if (P == 0) {
+     throw std::string("Couldn't allocate ") + utostr(NumBytes) + 
+         " bytes of executable memory!";
+   }
+   M.Address = P;
+   M.AllocSize = NumBytes;
+   return P;
+ }
+ 
+ void Memory::ReleaseRWX(Memory& M) {
+   if (M.Address == 0 ) return;
+   VirtualFree(M.Address, M.AllocSize, MEM_DECOMMIT, PAGE_NOACCESS);
+ }


Index: llvm/lib/System/Win32/Path.cpp
diff -c /dev/null llvm/lib/System/Win32/Path.cpp:1.1
*** /dev/null	Fri Sep 10 23:59:42 2004
--- llvm/lib/System/Win32/Path.cpp	Fri Sep 10 23:59:30 2004
***************
*** 0 ****
--- 1,33 ----
+ //===- Win32/Path.cpp - Win32 Path 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 Win32 specific implementation of the Path class.
+ //
+ //===----------------------------------------------------------------------===//
+ 
+ //===----------------------------------------------------------------------===//
+ //=== WARNING: Implementation here must contain only Win32 specific code 
+ //===          and must not be generic UNIX code (see ../Unix/Path.cpp)
+ //===----------------------------------------------------------------------===//
+ 
+ // Include the generic Unix implementation
+ #include "../Unix/Path.cpp"
+ 
+ namespace llvm {
+ using namespace sys;
+ 
+ 
+ std::string
+ Path::GetDLLSuffix() {
+   return "dll";
+ }
+ 
+ }
+ 
+ // vim: sw=2 smartindent smarttab tw=80 autoindent expandtab