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