1 /* Copyright 2015 The TensorFlow Authors. All Rights Reserved. 2 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 ==============================================================================*/ 15 16 #include "tensorflow/core/platform/load_library.h" 17 18 #include <dlfcn.h> 19 20 #include "tensorflow/core/lib/core/errors.h" 21 22 namespace tensorflow { 23 24 namespace internal { 25 26 Status LoadLibrary(const char* library_filename, void** handle) { 27 *handle = dlopen(library_filename, RTLD_NOW | RTLD_LOCAL); 28 if (!*handle) { 29 return errors::NotFound(dlerror()); 30 } 31 return Status::OK(); 32 } 33 34 Status GetSymbolFromLibrary(void* handle, const char* symbol_name, 35 void** symbol) { 36 *symbol = dlsym(handle, symbol_name); 37 if (!*symbol) { 38 return errors::NotFound(dlerror()); 39 } 40 return Status::OK(); 41 } 42 43 string FormatLibraryFileName(const string& name, const string& version) { 44 string filename; 45 #if defined(__APPLE__) 46 if (version.size() == 0) { 47 filename = "lib" + name + ".dylib"; 48 } else { 49 filename = "lib" + name + "." + version + ".dylib"; 50 } 51 #else 52 if (version.empty()) { 53 filename = "lib" + name + ".so"; 54 } else { 55 filename = "lib" + name + ".so" + "." + version; 56 } 57 #endif 58 return filename; 59 } 60 61 } // namespace internal 62 63 } // namespace tensorflow 64
