| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "crazy_linker_library_view.h" |
| |
| #include "crazy_linker_debug.h" |
| #include "crazy_linker_globals.h" |
| #include "crazy_linker_shared_library.h" |
| #include "crazy_linker_system_linker.h" |
| |
| namespace crazy { |
| |
| LibraryView::LibraryView(SharedLibrary* crazy_lib) |
| : type_(TYPE_CRAZY), crazy_(crazy_lib), name_(crazy_lib->soname()) {} |
| |
| LibraryView::~LibraryView() { |
| LOG("Destroying %s", name_.c_str()); |
| if (type_ == TYPE_SYSTEM) { |
| SystemLinker::Close(system_); |
| system_ = NULL; |
| } else if (type_ == TYPE_CRAZY) { |
| delete crazy_; |
| crazy_ = NULL; |
| } |
| type_ = TYPE_NONE; |
| } |
| |
| LibraryView::SearchResult LibraryView::LookupSymbol( |
| const char* symbol_name) const { |
| if (type_ == TYPE_SYSTEM) { |
| SystemLinker::SearchResult result = |
| SystemLinker::Resolve(system_, symbol_name); |
| if (result.IsValid()) { |
| return {result.address, this}; |
| } |
| } else if (type_ == TYPE_CRAZY) { |
| LibraryList* lib_list = Globals::Get()->libraries(); |
| void* address = lib_list->FindSymbolFrom(symbol_name, this); |
| if (address) { |
| return {address, this}; |
| } |
| } |
| return {}; |
| } |
| |
| bool LibraryView::GetInfo(size_t* load_address, |
| size_t* load_size, |
| size_t* relro_start, |
| size_t* relro_size, |
| Error* error) const { |
| if (type_ != TYPE_CRAZY) { |
| *error = "No RELRO sharing with system libraries"; |
| return false; |
| } |
| crazy_->GetInfo(load_address, load_size, relro_start, relro_size); |
| return true; |
| } |
| |
| } // namespace crazy |
