brintos

brintos / llvm-project-archived public Read only

0
0
Text · 1.9 KiB · 1443399 Raw
54 lines · cpp
1//===- lib/Tools/Plugins/DialectPlugin.cpp - Load Dialect Plugins ---------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "mlir/Tools/Plugins/DialectPlugin.h"10#include "llvm/Support/raw_ostream.h"11 12#include <cstdint>13 14using namespace mlir;15 16llvm::Expected<DialectPlugin> DialectPlugin::load(const std::string &filename) {17  std::string error;18  auto library =19      llvm::sys::DynamicLibrary::getPermanentLibrary(filename.c_str(), &error);20  if (!library.isValid())21    return llvm::make_error<llvm::StringError>(22        Twine("Could not load library '") + filename + "': " + error,23        llvm::inconvertibleErrorCode());24 25  DialectPlugin plugin{filename, library};26 27  // mlirGetDialectPluginInfo should be resolved to the definition from the28  // plugin we are currently loading.29  intptr_t getDetailsFn =30      (intptr_t)library.getAddressOfSymbol("mlirGetDialectPluginInfo");31 32  if (!getDetailsFn)33    return llvm::make_error<llvm::StringError>(34        Twine("Plugin entry point not found in '") + filename,35        llvm::inconvertibleErrorCode());36 37  plugin.info =38      reinterpret_cast<decltype(mlirGetDialectPluginInfo) *>(getDetailsFn)();39 40  if (plugin.info.apiVersion != MLIR_PLUGIN_API_VERSION)41    return llvm::make_error<llvm::StringError>(42        Twine("Wrong API version on plugin '") + filename + "'. Got version " +43            Twine(plugin.info.apiVersion) + ", supported version is " +44            Twine(MLIR_PLUGIN_API_VERSION) + ".",45        llvm::inconvertibleErrorCode());46 47  if (!plugin.info.registerDialectRegistryCallbacks)48    return llvm::make_error<llvm::StringError>(49        Twine("Empty entry callback in plugin '") + filename + "'.'",50        llvm::inconvertibleErrorCode());51 52  return plugin;53}54