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//===-- ObjectFilePlaceholder.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 "ObjectFilePlaceholder.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/ModuleSpec.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/Section.h"
#include "lldb/Target/SectionLoadList.h"
#include "lldb/Target/Target.h"
#include <memory>
using namespace lldb;
using namespace lldb_private;
LLDB_PLUGIN_DEFINE(ObjectFilePlaceholder)
ObjectFilePlaceholder::ObjectFilePlaceholder(
const lldb::ModuleSP &module_sp,
const lldb_private::ModuleSpec &module_spec, lldb::addr_t base,
lldb::addr_t size)
: ObjectFile(module_sp, &module_spec.GetFileSpec(), /*file_offset*/ 0,
/*length*/ 0, /*data_sp*/ nullptr, /*data_offset*/ 0),
m_arch(module_spec.GetArchitecture()), m_uuid(module_spec.GetUUID()),
m_base(base), m_size(size) {
m_symtab_up = std::make_unique<lldb_private::Symtab>(this);
}
void ObjectFilePlaceholder::CreateSections(
lldb_private::SectionList &unified_section_list) {
m_sections_up = std::make_unique<lldb_private::SectionList>();
auto section_sp = std::make_shared<lldb_private::Section>(
GetModule(), this, /*sect_id*/ 0,
lldb_private::ConstString(".module_image"), eSectionTypeOther, m_base,
m_size, /*file_offset*/ 0, /*file_size*/ 0,
/*log2align*/ 0, /*flags*/ 0);
section_sp->SetPermissions(ePermissionsReadable | ePermissionsExecutable);
m_sections_up->AddSection(section_sp);
unified_section_list.AddSection(std::move(section_sp));
}
lldb_private::Address ObjectFilePlaceholder::GetBaseAddress() {
return lldb_private::Address(m_sections_up->GetSectionAtIndex(0), 0);
}
bool ObjectFilePlaceholder::SetLoadAddress(Target &target, addr_t value,
bool value_is_offset) {
assert(!value_is_offset);
assert(value == m_base);
// Create sections if they haven't been created already.
GetModule()->GetSectionList();
assert(m_sections_up->GetNumSections(0) == 1);
target.SetSectionLoadAddress(m_sections_up->GetSectionAtIndex(0), m_base);
return true;
}
void ObjectFilePlaceholder::Dump(lldb_private::Stream *s) {
s->Format("Placeholder object file for {0} loaded at [{1:x}-{2:x})\n",
GetFileSpec(), m_base, m_base + m_size);
}
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