HMODULE LoadNativeHost(LPCTSTR szHostModuleName)
{
char localPath[PATH_MAX];
GetNativeBootstrapperDirectory(localPath);
strcat(localPath, "/");
strcat(localPath, szHostModuleName);
return dlopen(localPath, RTLD_NOW | RTLD_GLOBAL);
}
int CallApplicationProcessMain(int argc, dnx::char_t* argv[], dnx::trace_writer& trace_writer)
{
const auto currentDirectory = GetNativeBootstrapperDirectory();
CALL_APPLICATION_MAIN_DATA data = { 0 };
data.argc = argc;
data.argv = const_cast<const dnx::char_t**>(argv);
data.runtimeDirectory = currentDirectory.c_str();
dnx::char_t appBaseBuffer[MAX_PATH];
if (!GetApplicationBase(currentDirectory, argc, argv, appBaseBuffer))
{
return 1;
}
data.applicationBase = appBaseBuffer;
try
{
const dnx::char_t* hostModuleName =
#if defined(CORECLR_WIN)
#if defined(ONECORE) || defined(ARM)
_X("dnx.onecore.coreclr.dll");
#else
_X("dnx.win32.coreclr.dll");
#endif
#elif defined(CORECLR_DARWIN)
_X("dnx.coreclr.dylib");
#elif defined(CORECLR_LINUX)
_X("dnx.coreclr.so");
#else
_X("dnx.clr.dll");
#endif
// Note: need to keep as ASCII as GetProcAddress function takes ASCII params
return CallApplicationMain(hostModuleName, "CallApplicationMain", &data, trace_writer);
}
catch (const std::exception& ex)
{
xout << dnx::utils::to_xstring_t(ex.what()) << std::endl;
return 1;
}
}
int CallApplicationMain(const char* moduleName, const char* functionName, CALL_APPLICATION_MAIN_DATA* data, dnx::trace_writer& trace_writer)
{
auto localPath = GetNativeBootstrapperDirectory().append("/").append(moduleName);
void* host = nullptr;
try
{
host = dlopen(localPath.c_str(), RTLD_NOW | RTLD_GLOBAL);
if (!host)
{
throw std::runtime_error(std::string("Failed to load: ").append(moduleName));
}
trace_writer.write(std::string("Loaded module: ").append(moduleName), true);
auto pfnCallApplicationMain = reinterpret_cast<FnCallApplicationMain>(dlsym(host, functionName));
if (!pfnCallApplicationMain)
{
std::ostringstream oss;
oss << "Failed to find export '" << functionName << "' in " << moduleName;
throw std::runtime_error(oss.str());
}
trace_writer.write(std::string("Found export: ").append(functionName), true);
auto result = pfnCallApplicationMain(data);
dlclose(host);
return result == 0 ? data->exitcode : result;
}
catch(const std::exception& ex)
{
if(host)
{
dlclose(host);
}
throw;
}
}
