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//===-- SymbolVendor.cpp --------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/Symbol/SymbolVendor.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Symbol/CompileUnit.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Symbol/SymbolFile.h"
#include "lldb/Utility/Stream.h"
using namespace lldb;
using namespace lldb_private;
// FindPlugin
//
// Platforms can register a callback to use when creating symbol vendors to
// allow for complex debug information file setups, and to also allow for
// finding separate debug information files.
SymbolVendor *SymbolVendor::FindPlugin(const lldb::ModuleSP &module_sp,
lldb_private::Stream *feedback_strm) {
std::unique_ptr<SymbolVendor> instance_up;
SymbolVendorCreateInstance create_callback;
for (size_t idx = 0;
(create_callback = PluginManager::GetSymbolVendorCreateCallbackAtIndex(
idx)) != nullptr;
++idx) {
instance_up.reset(create_callback(module_sp, feedback_strm));
if (instance_up) {
return instance_up.release();
}
}
// The default implementation just tries to create debug information using
// the file representation for the module.
ObjectFileSP sym_objfile_sp;
FileSpec sym_spec = module_sp->GetSymbolFileFileSpec();
if (sym_spec && sym_spec != module_sp->GetObjectFile()->GetFileSpec()) {
DataBufferSP data_sp;
offset_t data_offset = 0;
sym_objfile_sp = ObjectFile::FindPlugin(
module_sp, &sym_spec, 0, FileSystem::Instance().GetByteSize(sym_spec),
data_sp, data_offset);
}
if (!sym_objfile_sp)
sym_objfile_sp = module_sp->GetObjectFile()->shared_from_this();
instance_up = std::make_unique<SymbolVendor>(module_sp);
instance_up->AddSymbolFileRepresentation(sym_objfile_sp);
return instance_up.release();
}
// SymbolVendor constructor
SymbolVendor::SymbolVendor(const lldb::ModuleSP &module_sp)
: ModuleChild(module_sp), m_sym_file_up() {}
// Add a representation given an object file.
void SymbolVendor::AddSymbolFileRepresentation(const ObjectFileSP &objfile_sp) {
ModuleSP module_sp(GetModule());
if (module_sp) {
std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
if (objfile_sp)
m_sym_file_up.reset(SymbolFile::FindPlugin(objfile_sp));
}
}
// PluginInterface protocol
lldb_private::ConstString SymbolVendor::GetPluginName() {
static ConstString g_name("vendor-default");
return g_name;
}
uint32_t SymbolVendor::GetPluginVersion() { return 1; }
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