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- /*
- * Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
- * for details. All rights reserved. Use of this source code is governed by a
- * BSD-style license that can be found in the LICENSE file.
- */
- #include "dart_api_dl.h" /* NOLINT */
- #include "dart_version.h" /* NOLINT */
- #include "internal/dart_api_dl_impl.h" /* NOLINT */
- #include <string.h>
- #define DART_API_DL_DEFINITIONS(name, R, A) name##_Type name##_DL = NULL;
- DART_API_ALL_DL_SYMBOLS(DART_API_DL_DEFINITIONS)
- #undef DART_API_DL_DEFINITIONS
- typedef void* DartApiEntry_function;
- DartApiEntry_function FindFunctionPointer(const DartApiEntry* entries,
- const char* name) {
- while (entries->name != NULL) {
- if (strcmp(entries->name, name) == 0) return entries->function;
- entries++;
- }
- return NULL;
- }
- intptr_t Dart_InitializeApiDL(void* data) {
- DartApi* dart_api_data = (DartApi*)data;
- if (dart_api_data->major != DART_API_DL_MAJOR_VERSION) {
- // If the DartVM we're running on does not have the same version as this
- // file was compiled against, refuse to initialize. The symbols are not
- // compatible.
- return -1;
- }
- // Minor versions are allowed to be different.
- // If the DartVM has a higher minor version, it will provide more symbols
- // than we initialize here.
- // If the DartVM has a lower minor version, it will not provide all symbols.
- // In that case, we leave the missing symbols un-initialized. Those symbols
- // should not be used by the Dart and native code. The client is responsible
- // for checking the minor version number himself based on which symbols it
- // is using.
- // (If we would error out on this case, recompiling native code against a
- // newer SDK would break all uses on older SDKs, which is too strict.)
- const DartApiEntry* dart_api_function_pointers = dart_api_data->functions;
- #define DART_API_DL_INIT(name, R, A) \
- name##_DL = \
- (name##_Type)(FindFunctionPointer(dart_api_function_pointers, #name));
- DART_API_ALL_DL_SYMBOLS(DART_API_DL_INIT)
- #undef DART_API_DL_INIT
- return 0;
- }
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