0610a25a85
This is a polymorphic class, copying it is a bad idea. This was not a problem because most classes inheriting from it were deleting their copy operations themselves. However, this enables us to delete those explicit deletions, and ensure noone forgets to add them in the future.
80 lines
2.8 KiB
C++
80 lines
2.8 KiB
C++
//===-- SymbolVendor.cpp --------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Symbol/SymbolVendor.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Core/PluginManager.h"
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#include "lldb/Symbol/CompileUnit.h"
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#include "lldb/Symbol/ObjectFile.h"
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#include "lldb/Symbol/SymbolFile.h"
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#include "lldb/Utility/Stream.h"
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using namespace lldb;
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using namespace lldb_private;
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// FindPlugin
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//
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// Platforms can register a callback to use when creating symbol vendors to
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// allow for complex debug information file setups, and to also allow for
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// finding separate debug information files.
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SymbolVendor *SymbolVendor::FindPlugin(const lldb::ModuleSP &module_sp,
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lldb_private::Stream *feedback_strm) {
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std::unique_ptr<SymbolVendor> instance_up;
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SymbolVendorCreateInstance create_callback;
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for (size_t idx = 0;
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(create_callback = PluginManager::GetSymbolVendorCreateCallbackAtIndex(
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idx)) != nullptr;
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++idx) {
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instance_up.reset(create_callback(module_sp, feedback_strm));
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if (instance_up) {
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return instance_up.release();
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}
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}
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// The default implementation just tries to create debug information using
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// the file representation for the module.
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ObjectFileSP sym_objfile_sp;
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FileSpec sym_spec = module_sp->GetSymbolFileFileSpec();
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if (sym_spec && sym_spec != module_sp->GetObjectFile()->GetFileSpec()) {
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DataBufferSP data_sp;
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offset_t data_offset = 0;
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sym_objfile_sp = ObjectFile::FindPlugin(
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module_sp, &sym_spec, 0, FileSystem::Instance().GetByteSize(sym_spec),
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data_sp, data_offset);
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}
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if (!sym_objfile_sp)
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sym_objfile_sp = module_sp->GetObjectFile()->shared_from_this();
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instance_up = std::make_unique<SymbolVendor>(module_sp);
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instance_up->AddSymbolFileRepresentation(sym_objfile_sp);
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return instance_up.release();
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}
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// SymbolVendor constructor
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SymbolVendor::SymbolVendor(const lldb::ModuleSP &module_sp)
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: ModuleChild(module_sp), m_sym_file_up() {}
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// Add a representation given an object file.
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void SymbolVendor::AddSymbolFileRepresentation(const ObjectFileSP &objfile_sp) {
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ModuleSP module_sp(GetModule());
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if (module_sp) {
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std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
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if (objfile_sp)
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m_sym_file_up.reset(SymbolFile::FindPlugin(objfile_sp));
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}
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}
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// PluginInterface protocol
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lldb_private::ConstString SymbolVendor::GetPluginName() {
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static ConstString g_name("vendor-default");
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return g_name;
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}
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uint32_t SymbolVendor::GetPluginVersion() { return 1; }
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