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// Copyright (c) 2012, 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 "vm/bootstrap.h"
#include "include/dart_api.h"
#include "vm/bootstrap_natives.h"
#include "vm/dart_api_impl.h"
#include "vm/object.h"
#include "vm/object_store.h"
#include "vm/service_isolate.h"
namespace dart {
// Helper macros for declaring and defining native entries.
#define REGISTER_NATIVE_ENTRY(name, count) \
{"" #name, BootstrapNatives::DN_##name, count},
// List all native functions implemented in the vm or core bootstrap dart
// libraries so that we can resolve the native function to it's entry
// point.
static const struct NativeEntries {
const char* name_;
BootstrapNativeFunction function_;
int argument_count_;
} BootStrapEntries[] = {BOOTSTRAP_NATIVE_LIST(REGISTER_NATIVE_ENTRY)
#if !defined(DART_PRECOMPILED_RUNTIME)
MIRRORS_BOOTSTRAP_NATIVE_LIST(REGISTER_NATIVE_ENTRY)
#endif // !DART_PRECOMPILED_RUNTIME
};
#define REGISTER_FFI_NATIVE_ENTRY(name, return_type, argument_types) \
{"" #name, reinterpret_cast<void*>(BootstrapNatives::FN_##name)},
static const struct FfiNativeEntries {
const char* name_;
void* function_;
} BootStrapFfiEntries[] = {
BOOTSTRAP_FFI_NATIVE_LIST(REGISTER_FFI_NATIVE_ENTRY)};
Dart_NativeFunction BootstrapNatives::Lookup(Dart_Handle name,
int argument_count,
bool* auto_setup_scope) {
Thread* thread = Thread::Current();
TransitionNativeToVM transition(thread);
const Object& obj = Object::Handle(thread->zone(), Api::UnwrapHandle(name));
if (!obj.IsString()) {
return NULL;
}
ASSERT(auto_setup_scope);
*auto_setup_scope = false;
const char* function_name = obj.ToCString();
ASSERT(function_name != NULL);
int num_entries = sizeof(BootStrapEntries) / sizeof(struct NativeEntries);
for (int i = 0; i < num_entries; i++) {
const struct NativeEntries* entry = &(BootStrapEntries[i]);
if ((strcmp(function_name, entry->name_) == 0) &&
(entry->argument_count_ == argument_count)) {
return reinterpret_cast<Dart_NativeFunction>(entry->function_);
}
}
return NULL;
}
void* BootstrapNatives::LookupFfiNative(const char* name,
uintptr_t argument_count) {
int num_entries =
sizeof(BootStrapFfiEntries) / sizeof(struct FfiNativeEntries);
for (int i = 0; i < num_entries; i++) {
const struct FfiNativeEntries* entry = &(BootStrapFfiEntries[i]);
if (strcmp(name, entry->name_) == 0) {
return entry->function_;
}
}
return nullptr;
}
const uint8_t* BootstrapNatives::Symbol(Dart_NativeFunction nf) {
int num_entries = sizeof(BootStrapEntries) / sizeof(struct NativeEntries);
for (int i = 0; i < num_entries; i++) {
const struct NativeEntries* entry = &(BootStrapEntries[i]);
if (reinterpret_cast<Dart_NativeFunction>(entry->function_) == nf) {
return reinterpret_cast<const uint8_t*>(entry->name_);
}
}
return NULL;
}
void Bootstrap::SetupNativeResolver() {
Library& library = Library::Handle();
Dart_NativeEntryResolver resolver = BootstrapNatives::Lookup;
Dart_FfiNativeResolver ffi_native_resolver =
BootstrapNatives::LookupFfiNative;
Dart_NativeEntrySymbol symbol_resolver = BootstrapNatives::Symbol;
library = Library::AsyncLibrary();
ASSERT(!library.IsNull());
library.set_native_entry_resolver(resolver);
library.set_native_entry_symbol_resolver(symbol_resolver);
library = Library::CollectionLibrary();
ASSERT(!library.IsNull());
library.set_native_entry_resolver(resolver);
library.set_native_entry_symbol_resolver(symbol_resolver);
library = Library::ConvertLibrary();
ASSERT(!library.IsNull());
library.set_native_entry_resolver(resolver);
library.set_native_entry_symbol_resolver(symbol_resolver);
library = Library::CoreLibrary();
ASSERT(!library.IsNull());
library.set_native_entry_resolver(resolver);
library.set_native_entry_symbol_resolver(symbol_resolver);
library = Library::DeveloperLibrary();
ASSERT(!library.IsNull());
library.set_native_entry_resolver(resolver);
library.set_native_entry_symbol_resolver(symbol_resolver);
library = Library::FfiLibrary();
ASSERT(!library.IsNull());
library.set_native_entry_resolver(resolver);
library.set_native_entry_symbol_resolver(symbol_resolver);
library = Library::InternalLibrary();
ASSERT(!library.IsNull());
library.set_native_entry_resolver(resolver);
library.set_native_entry_symbol_resolver(symbol_resolver);
library.set_ffi_native_resolver(ffi_native_resolver);
library = Library::IsolateLibrary();
ASSERT(!library.IsNull());
library.set_native_entry_resolver(resolver);
library.set_native_entry_symbol_resolver(symbol_resolver);
library = Library::MathLibrary();
ASSERT(!library.IsNull());
library.set_native_entry_resolver(resolver);
library.set_native_entry_symbol_resolver(symbol_resolver);
#if !defined(DART_PRECOMPILED_RUNTIME)
library = Library::MirrorsLibrary();
ASSERT(!library.IsNull());
library.set_native_entry_resolver(resolver);
library.set_native_entry_symbol_resolver(symbol_resolver);
#endif
library = Library::TypedDataLibrary();
ASSERT(!library.IsNull());
library.set_native_entry_resolver(resolver);
library.set_native_entry_symbol_resolver(symbol_resolver);
library = Library::VMServiceLibrary();
ASSERT(!library.IsNull());
library.set_native_entry_resolver(resolver);
library.set_native_entry_symbol_resolver(symbol_resolver);
}
bool Bootstrap::IsBootstrapResolver(Dart_NativeEntryResolver resolver) {
return resolver == BootstrapNatives::Lookup;
}
} // namespace dart