| /* |
| * Copyright (c) 2021 The Khronos Group Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| * OpenCL is a trademark of Apple Inc. used under license by Khronos. |
| */ |
| |
| #include "dlopen_fuchsia.h" |
| #include "loader_service.h" |
| |
| #include <dlfcn.h> |
| #include <lib/syslog/global.h> |
| #include <pthread.h> |
| |
| extern "C" { |
| #include "icd.h" |
| } |
| |
| static pthread_once_t initialized = PTHREAD_ONCE_INIT; |
| |
| /* |
| * |
| * Vendor enumeration functions |
| * |
| */ |
| |
| // go through the list of vendors in the two configuration files |
| void khrIcdOsVendorsEnumerate(void) |
| { |
| auto &loader_svc = opencl_loader::get_opencl_loader_service(); |
| if (!loader_svc.is_valid()) { |
| FX_LOGF(ERROR, opencl_loader::kTag, "no connection to loader svc"); |
| return; |
| } |
| |
| // TODO(fxbug.dev/91413): Get the library name from the loader_service. |
| khrIcdVendorAdd("libopencl_fake.so"); |
| } |
| |
| // go through the list of vendors only once |
| void khrIcdOsVendorsEnumerateOnce(void) |
| { |
| pthread_once(&initialized, khrIcdOsVendorsEnumerate); |
| } |
| |
| /* |
| * |
| * Dynamic library loading functions |
| * |
| */ |
| |
| // dynamically load a library. returns NULL on failure |
| void *khrIcdOsLibraryLoad(const char *libraryName) |
| { |
| return dlopen_fuchsia(libraryName, RTLD_NOW, true); |
| } |
| |
| // get a function pointer from a loaded library. returns NULL on failure. |
| void *khrIcdOsLibraryGetFunctionAddress(void *library, const char *functionName) |
| { |
| return dlsym(library, functionName); |
| } |
| |
| // unload a library |
| void khrIcdOsLibraryUnload(void *library) |
| { |
| dlclose(library); |
| } |