DynamicLibrary.inc [plain text]
#include "Windows.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;
static std::vector<HMODULE> OpenedHandles;
extern "C" {
static BOOL CALLBACK ELM_Callback(WIN32_ELMCB_PCSTR ModuleName,
ULONG_PTR ModuleBase,
ULONG ModuleSize,
PVOID UserContext)
{
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__
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 {
EnumerateLoadedModules(GetCurrentProcess(), ELM_Callback, 0);
}
return false;
}
#define EXPLICIT_SYMBOL(SYM) \
extern "C" { extern void *SYM; }
#define EXPLICIT_SYMBOL2(SYMFROM, SYMTO) EXPLICIT_SYMBOL(SYMTO)
#include "explicit_symbols.inc"
#undef EXPLICIT_SYMBOL
#undef EXPLICIT_SYMBOL2
void* DynamicLibrary::SearchForAddressOfSymbol(const char* symbolName) {
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;
}
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;
}
}
#define EXPLICIT_SYMBOL(SYM) \
if (!strcmp(symbolName, #SYM)) return (void*)&SYM;
#define EXPLICIT_SYMBOL2(SYMFROM, SYMTO) \
if (!strcmp(symbolName, #SYMFROM)) return (void*)&SYMTO;
{
#include "explicit_symbols.inc"
}
#undef EXPLICIT_SYMBOL
#undef EXPLICIT_SYMBOL2
return 0;
}
}