From e978501448531936065e6092339a9a01f9044c3d Mon Sep 17 00:00:00 2001
From: Reid Spencer <rspencer@reidspencer.com>
Date: Mon, 29 Nov 2004 14:11:41 +0000
Subject: [PATCH] Functionality moved to portable lib/System/DynamicLibrary.cpp
 implementation

llvm-svn: 18358
---
 lib/Support/DynamicLinker.cpp | 96 -----------------------------------
 1 file changed, 96 deletions(-)
 delete mode 100644 lib/Support/DynamicLinker.cpp

diff --git a/lib/Support/DynamicLinker.cpp b/lib/Support/DynamicLinker.cpp
deleted file mode 100644
index 1ebe3f2e412..00000000000
--- a/lib/Support/DynamicLinker.cpp
+++ /dev/null
@@ -1,96 +0,0 @@
-//===-- DynamicLinker.cpp - Implement DynamicLinker interface -------------===//
-// 
-//                     The LLVM Compiler Infrastructure
-//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-// 
-//===----------------------------------------------------------------------===//
-//
-// Lightweight interface to dynamic library linking and loading, and dynamic
-// symbol lookup functionality, in whatever form the operating system
-// provides it.
-//
-// Possible future extensions include support for the HPUX shl_load()
-// interface, and the Mac OS X NSLinkModule() interface.
-//
-// Note that we assume that if dlopen() is available, then dlsym() is too.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/DynamicLinker.h"
-#include "llvm/Config/dlfcn.h"
-#include "llvm/Config/windows.h"
-#include <vector>
-#include <cassert>
-#include <cstdio>
-using namespace llvm;
-
-#if defined(HAVE_WINDOWS_H)
-// getLoadedLibs - Keep track of the shared objects that are loaded into the
-// process address space, as the windows GetProcAddress function does not
-// automatically search an entire address space, it only searches a specific
-// object.
-static std::vector<HMODULE> &getLoadedLibHandles() {
-  static std::vector<HMODULE> *LoadedLibHandles = 0;
-  if (LoadedLibHandles == 0) {
-    LoadedLibHandles = new std::vector<HMODULE>();
-    if (HMODULE H = GetModuleHandle(NULL))                // JIT symbols
-      LoadedLibHandles->push_back(H);
-    if (HMODULE MH = GetModuleHandle("cygwin1.dll"))      // Cygwin symbols OR
-      LoadedLibHandles->push_back(MH);
-    else if (HMODULE MH = GetModuleHandle("msvcr80.dll")) // VC++ symbols
-      LoadedLibHandles->push_back(MH);
-  }
-  return *LoadedLibHandles;
-}
-#endif
-
-bool llvm::LinkDynamicObject(const char *filename, std::string *ErrorMessage) {
-#if defined(HAVE_WINDOWS_H)
-  if (HMODULE Handle = LoadLibrary(filename)) {
-    // Allow GetProcAddress in this module
-    getLoadedLibHandles().push_back(Handle);
-    return false;
-  }
-  if (ErrorMessage) {
-    char Buffer[100];
-    // FIXME: This should use FormatMessage
-    sprintf(Buffer, "Windows error code %d\n", GetLastError());
-    *ErrorMessage = Buffer;
-  }
-  return true;
-#elif defined (HAVE_DLOPEN)
-  if (dlopen (filename, RTLD_NOW | RTLD_GLOBAL) == 0) {
-    if (ErrorMessage) *ErrorMessage = dlerror ();
-    return true;
-  }
-  return false;
-#else
-  assert (0 && "Dynamic object linking not implemented for this platform");
-#endif
-}
-
-void *llvm::GetAddressOfSymbol(const char *symbolName) {
-#if defined(HAVE_WINDOWS_H)
-  std::vector<HMODULE> &LH = getLoadedLibHandles();
-  for (unsigned i = 0, e = LH.size(); i != e; ++i)
-    if (void *Val = (void*)GetProcAddress(LH[i], symbolName))
-      return Val;
-  return 0;
-#elif defined(HAVE_DLOPEN)
-#  ifdef RTLD_DEFAULT
-    return dlsym (RTLD_DEFAULT, symbolName);
-#  else
-    static void* CurHandle = dlopen(0, RTLD_LAZY);
-    return dlsym(CurHandle, symbolName);
-#  endif
-#else
-  assert (0 && "Dynamic symbol lookup not implemented for this platform");
-#endif
-}
-
-// soft, cushiony C++ interface.
-void *llvm::GetAddressOfSymbol(const std::string &symbolName) {
-  return GetAddressOfSymbol(symbolName.c_str());
-}