Jens Johansen
bbb463ac20
Now basically only Program (with ~no children) persists. BUG= R=kmillikin@google.com Review-Url: https://codereview.chromium.org/2931773005 .
53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
// Copyright (c) 2016, 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.
|
|
#if !defined(DART_PRECOMPILED_RUNTIME)
|
|
|
|
#include "vm/kernel_binary.h"
|
|
#include "platform/globals.h"
|
|
#include "vm/flags.h"
|
|
#include "vm/growable_array.h"
|
|
#include "vm/kernel.h"
|
|
#include "vm/kernel_to_il.h"
|
|
#include "vm/os.h"
|
|
|
|
|
|
namespace dart {
|
|
|
|
|
|
namespace kernel {
|
|
|
|
Program* Program::ReadFrom(Reader* reader) {
|
|
uint32_t magic = reader->ReadUInt32();
|
|
if (magic != kMagicProgramFile) FATAL("Invalid magic identifier");
|
|
|
|
Program* program = new Program();
|
|
program->kernel_data_ = reader->buffer();
|
|
program->kernel_data_size_ = reader->size();
|
|
|
|
program->string_table_offset_ = reader->offset();
|
|
|
|
// Read backwards at the end.
|
|
reader->set_offset(reader->size() - 4);
|
|
program->library_count_ = reader->ReadUInt32();
|
|
reader->set_offset(reader->size() - 4 - 4 * program->library_count_ - 2 * 4);
|
|
program->name_table_offset_ = reader->ReadUInt32();
|
|
program->main_method_reference_ = NameIndex(reader->ReadUInt32() - 1);
|
|
|
|
return program;
|
|
}
|
|
|
|
|
|
} // namespace kernel
|
|
|
|
|
|
kernel::Program* ReadPrecompiledKernelFromBuffer(const uint8_t* buffer,
|
|
intptr_t buffer_length) {
|
|
kernel::Reader reader(buffer, buffer_length);
|
|
return kernel::Program::ReadFrom(&reader);
|
|
}
|
|
|
|
|
|
} // namespace dart
|
|
#endif // !defined(DART_PRECOMPILED_RUNTIME)
|