+++ /dev/null
-//===- Win32/DynamicLibrary.cpp - Win32 DL Implementation -------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file provides the Win32 specific implementation of DynamicLibrary.
-//
-//===----------------------------------------------------------------------===//
-
-#include "Win32.h"
-
-#ifdef __MINGW32__
- #include <imagehlp.h>
-#else
- #include <dbghelp.h>
-#endif
-
-#ifdef _MSC_VER
- #include <ntverp.h>
-#endif
-
-#ifdef __MINGW32__
- #if (HAVE_LIBIMAGEHLP != 1)
- #error "libimagehlp.a should be present"
- #endif
-#else
- #pragma comment(lib, "dbghelp.lib")
-#endif
-
-namespace llvm {
-using namespace sys;
-
-//===----------------------------------------------------------------------===//
-//=== WARNING: Implementation here must contain only Win32 specific code
-//=== and must not be UNIX code.
-//===----------------------------------------------------------------------===//
-
-static std::vector<HMODULE> OpenedHandles;
-
-#ifdef _WIN64
- typedef DWORD64 ModuleBaseType;
-#else
- typedef ULONG ModuleBaseType;
-#endif
-
-extern "C" {
-// Use old callback if:
-// - Not using Visual Studio
-// - Visual Studio 2005 or earlier but only if we are not using the Windows SDK
-// or Windows SDK version is older than 6.0
-// Use new callback if:
-// - Newer Visual Studio (comes with newer SDK).
-// - Visual Studio 2005 with Windows SDK 6.0+
-#if !defined(_MSC_VER) || _MSC_VER < 1500 && (!defined(VER_PRODUCTBUILD) || VER_PRODUCTBUILD < 6000)
- static BOOL CALLBACK ELM_Callback(PSTR ModuleName,
- ModuleBaseType ModuleBase,
- ULONG ModuleSize,
- PVOID UserContext)
-#else
- static BOOL CALLBACK ELM_Callback(PCSTR ModuleName,
- ModuleBaseType ModuleBase,
- ULONG ModuleSize,
- PVOID UserContext)
-#endif
- {
- // Ignore VC++ runtimes prior to 7.1. Somehow some of them get loaded
- // into the process.
- if (stricmp(ModuleName, "msvci70") != 0 &&
- stricmp(ModuleName, "msvcirt") != 0 &&
- stricmp(ModuleName, "msvcp50") != 0 &&
- stricmp(ModuleName, "msvcp60") != 0 &&
- stricmp(ModuleName, "msvcp70") != 0 &&
- stricmp(ModuleName, "msvcr70") != 0 &&
-#ifndef __MINGW32__
- // Mingw32 uses msvcrt.dll by default. Don't ignore it.
- // Otherwise, user should be aware, what he's doing :)
- stricmp(ModuleName, "msvcrt") != 0 &&
-#endif
- stricmp(ModuleName, "msvcrt20") != 0 &&
- stricmp(ModuleName, "msvcrt40") != 0) {
- OpenedHandles.push_back((HMODULE)ModuleBase);
- }
- return TRUE;
- }
-}
-
-bool DynamicLibrary::LoadLibraryPermanently(const char *filename,
- std::string *ErrMsg) {
- if (filename) {
- HMODULE a_handle = LoadLibrary(filename);
-
- if (a_handle == 0)
- return MakeErrMsg(ErrMsg, std::string(filename) + ": Can't open : ");
-
- OpenedHandles.push_back(a_handle);
- } else {
- // When no file is specified, enumerate all DLLs and EXEs in the
- // process.
- EnumerateLoadedModules(GetCurrentProcess(), ELM_Callback, 0);
- }
-
- // Because we don't remember the handle, we will never free it; hence,
- // it is loaded permanently.
- return false;
-}
-
-// Stack probing routines are in the support library (e.g. libgcc), but we don't
-// have dynamic linking on windows. Provide a hook.
-#if defined(__MINGW32__) || defined (_MSC_VER)
- #define EXPLICIT_SYMBOL(SYM) \
- if (!strcmp(symbolName, #SYM)) return (void*)&SYM
- #define EXPLICIT_SYMBOL2(SYMFROM, SYMTO) \
- if (!strcmp(symbolName, #SYMFROM)) return (void*)&SYMTO
- #define EXPLICIT_SYMBOL_DEF(SYM) \
- extern "C" { extern void *SYM; }
-
- #if defined(__MINGW32__)
- EXPLICIT_SYMBOL_DEF(_alloca)
- EXPLICIT_SYMBOL_DEF(__main)
- EXPLICIT_SYMBOL_DEF(__ashldi3)
- EXPLICIT_SYMBOL_DEF(__ashrdi3)
- EXPLICIT_SYMBOL_DEF(__cmpdi2)
- EXPLICIT_SYMBOL_DEF(__divdi3)
- EXPLICIT_SYMBOL_DEF(__fixdfdi)
- EXPLICIT_SYMBOL_DEF(__fixsfdi)
- EXPLICIT_SYMBOL_DEF(__fixunsdfdi)
- EXPLICIT_SYMBOL_DEF(__fixunssfdi)
- EXPLICIT_SYMBOL_DEF(__floatdidf)
- EXPLICIT_SYMBOL_DEF(__floatdisf)
- EXPLICIT_SYMBOL_DEF(__lshrdi3)
- EXPLICIT_SYMBOL_DEF(__moddi3)
- EXPLICIT_SYMBOL_DEF(__udivdi3)
- EXPLICIT_SYMBOL_DEF(__umoddi3)
- #elif defined(_MSC_VER)
- EXPLICIT_SYMBOL_DEF(_alloca_probe)
- #endif
-#endif
-
-void* DynamicLibrary::SearchForAddressOfSymbol(const char* symbolName) {
- // First check symbols added via AddSymbol().
- if (ExplicitSymbols) {
- std::map<std::string, void *>::iterator I =
- ExplicitSymbols->find(symbolName);
- std::map<std::string, void *>::iterator E = ExplicitSymbols->end();
- if (I != E)
- return I->second;
- }
-
- // Now search the libraries.
- for (std::vector<HMODULE>::iterator I = OpenedHandles.begin(),
- E = OpenedHandles.end(); I != E; ++I) {
- FARPROC ptr = GetProcAddress((HMODULE)*I, symbolName);
- if (ptr) {
- return (void *) ptr;
- }
- }
-
-#if defined(__MINGW32__)
- {
- EXPLICIT_SYMBOL(_alloca);
- EXPLICIT_SYMBOL(__main);
- EXPLICIT_SYMBOL(__ashldi3);
- EXPLICIT_SYMBOL(__ashrdi3);
- EXPLICIT_SYMBOL(__cmpdi2);
- EXPLICIT_SYMBOL(__divdi3);
- EXPLICIT_SYMBOL(__fixdfdi);
- EXPLICIT_SYMBOL(__fixsfdi);
- EXPLICIT_SYMBOL(__fixunsdfdi);
- EXPLICIT_SYMBOL(__fixunssfdi);
- EXPLICIT_SYMBOL(__floatdidf);
- EXPLICIT_SYMBOL(__floatdisf);
- EXPLICIT_SYMBOL(__lshrdi3);
- EXPLICIT_SYMBOL(__moddi3);
- EXPLICIT_SYMBOL(__udivdi3);
- EXPLICIT_SYMBOL(__umoddi3);
-
- EXPLICIT_SYMBOL2(alloca, _alloca);
-#undef EXPLICIT_SYMBOL
-#undef EXPLICIT_SYMBOL2
-#undef EXPLICIT_SYMBOL_DEF
- }
-#elif defined(_MSC_VER)
- {
- EXPLICIT_SYMBOL2(alloca, _alloca_probe);
- EXPLICIT_SYMBOL2(_alloca, _alloca_probe);
-#undef EXPLICIT_SYMBOL
-#undef EXPLICIT_SYMBOL2
-#undef EXPLICIT_SYMBOL_DEF
- }
-#endif
-
- return 0;
-}
-
-}
-
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