5f19b90783
The rationale here is that ArchSpec is used throughout the codebase, including in places which should not depend on the rest of the code in the Core module. This commit touches many files, but most of it is just renaming of #include lines. In a couple of cases, I removed the #include ArchSpec line altogether, as the file was not using it. In one or two places, this necessitated adding other #includes like lldb-private-defines.h. llvm-svn: 318048
267 lines
8.6 KiB
C++
267 lines
8.6 KiB
C++
//===-- ObjectFileJIT.cpp ---------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/StringRef.h"
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#include "ObjectFileJIT.h"
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#include "lldb/Core/Debugger.h"
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#include "lldb/Core/FileSpecList.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/RangeMap.h"
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#include "lldb/Core/Section.h"
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#include "lldb/Core/StreamFile.h"
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#include "lldb/Host/Host.h"
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#include "lldb/Symbol/ObjectFile.h"
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#include "lldb/Target/Platform.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/SectionLoadList.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Utility/ArchSpec.h"
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#include "lldb/Utility/DataBuffer.h"
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#include "lldb/Utility/DataBufferHeap.h"
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#include "lldb/Utility/FileSpec.h"
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#include "lldb/Utility/Log.h"
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#include "lldb/Utility/StreamString.h"
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#include "lldb/Utility/Timer.h"
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#include "lldb/Utility/UUID.h"
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#ifndef __APPLE__
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#include "Utility/UuidCompatibility.h"
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#endif
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using namespace lldb;
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using namespace lldb_private;
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void ObjectFileJIT::Initialize() {
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PluginManager::RegisterPlugin(GetPluginNameStatic(),
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GetPluginDescriptionStatic(), CreateInstance,
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CreateMemoryInstance, GetModuleSpecifications);
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}
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void ObjectFileJIT::Terminate() {
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PluginManager::UnregisterPlugin(CreateInstance);
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}
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lldb_private::ConstString ObjectFileJIT::GetPluginNameStatic() {
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static ConstString g_name("jit");
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return g_name;
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}
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const char *ObjectFileJIT::GetPluginDescriptionStatic() {
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return "JIT code object file";
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}
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ObjectFile *ObjectFileJIT::CreateInstance(const lldb::ModuleSP &module_sp,
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DataBufferSP &data_sp,
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lldb::offset_t data_offset,
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const FileSpec *file,
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lldb::offset_t file_offset,
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lldb::offset_t length) {
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// JIT'ed object file is backed by the ObjectFileJITDelegate, never
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// read from a file
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return NULL;
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}
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ObjectFile *ObjectFileJIT::CreateMemoryInstance(const lldb::ModuleSP &module_sp,
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DataBufferSP &data_sp,
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const ProcessSP &process_sp,
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lldb::addr_t header_addr) {
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// JIT'ed object file is backed by the ObjectFileJITDelegate, never
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// read from memory
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return NULL;
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}
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size_t ObjectFileJIT::GetModuleSpecifications(
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const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp,
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lldb::offset_t data_offset, lldb::offset_t file_offset,
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lldb::offset_t length, lldb_private::ModuleSpecList &specs) {
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// JIT'ed object file can't be read from a file on disk
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return 0;
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}
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ObjectFileJIT::ObjectFileJIT(const lldb::ModuleSP &module_sp,
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const ObjectFileJITDelegateSP &delegate_sp)
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: ObjectFile(module_sp, NULL, 0, 0, DataBufferSP(), 0), m_delegate_wp() {
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if (delegate_sp) {
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m_delegate_wp = delegate_sp;
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m_data.SetByteOrder(delegate_sp->GetByteOrder());
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m_data.SetAddressByteSize(delegate_sp->GetAddressByteSize());
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}
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}
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ObjectFileJIT::~ObjectFileJIT() {}
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bool ObjectFileJIT::ParseHeader() {
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// JIT code is never in a file, nor is it required to have any header
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return false;
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}
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ByteOrder ObjectFileJIT::GetByteOrder() const { return m_data.GetByteOrder(); }
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bool ObjectFileJIT::IsExecutable() const { return false; }
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uint32_t ObjectFileJIT::GetAddressByteSize() const {
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return m_data.GetAddressByteSize();
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}
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Symtab *ObjectFileJIT::GetSymtab() {
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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 (m_symtab_ap.get() == NULL) {
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m_symtab_ap.reset(new Symtab(this));
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std::lock_guard<std::recursive_mutex> symtab_guard(
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m_symtab_ap->GetMutex());
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ObjectFileJITDelegateSP delegate_sp(m_delegate_wp.lock());
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if (delegate_sp)
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delegate_sp->PopulateSymtab(this, *m_symtab_ap);
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// TODO: get symbols from delegate
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m_symtab_ap->Finalize();
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}
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}
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return m_symtab_ap.get();
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}
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bool ObjectFileJIT::IsStripped() {
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return false; // JIT code that is in a module is never stripped
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}
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void ObjectFileJIT::CreateSections(SectionList &unified_section_list) {
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if (!m_sections_ap.get()) {
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m_sections_ap.reset(new SectionList());
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ObjectFileJITDelegateSP delegate_sp(m_delegate_wp.lock());
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if (delegate_sp) {
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delegate_sp->PopulateSectionList(this, *m_sections_ap);
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unified_section_list = *m_sections_ap;
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}
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}
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}
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void ObjectFileJIT::Dump(Stream *s) {
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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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s->Printf("%p: ", static_cast<void *>(this));
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s->Indent();
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s->PutCString("ObjectFileJIT");
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ArchSpec arch;
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if (GetArchitecture(arch))
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*s << ", arch = " << arch.GetArchitectureName();
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s->EOL();
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SectionList *sections = GetSectionList();
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if (sections)
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sections->Dump(s, NULL, true, UINT32_MAX);
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if (m_symtab_ap.get())
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m_symtab_ap->Dump(s, NULL, eSortOrderNone);
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}
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}
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bool ObjectFileJIT::GetUUID(lldb_private::UUID *uuid) {
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// TODO: maybe get from delegate, not needed for first pass
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return false;
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}
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uint32_t ObjectFileJIT::GetDependentModules(FileSpecList &files) {
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// JIT modules don't have dependencies, but they could
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// if external functions are called and we know where they are
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files.Clear();
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return 0;
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}
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lldb_private::Address ObjectFileJIT::GetEntryPointAddress() {
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return Address();
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}
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lldb_private::Address ObjectFileJIT::GetHeaderAddress() { return Address(); }
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ObjectFile::Type ObjectFileJIT::CalculateType() { return eTypeJIT; }
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ObjectFile::Strata ObjectFileJIT::CalculateStrata() { return eStrataJIT; }
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bool ObjectFileJIT::GetArchitecture(ArchSpec &arch) {
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ObjectFileJITDelegateSP delegate_sp(m_delegate_wp.lock());
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if (delegate_sp)
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return delegate_sp->GetArchitecture(arch);
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return false;
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}
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//------------------------------------------------------------------
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// PluginInterface protocol
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//------------------------------------------------------------------
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lldb_private::ConstString ObjectFileJIT::GetPluginName() {
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return GetPluginNameStatic();
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}
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uint32_t ObjectFileJIT::GetPluginVersion() { return 1; }
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bool ObjectFileJIT::SetLoadAddress(Target &target, lldb::addr_t value,
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bool value_is_offset) {
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size_t num_loaded_sections = 0;
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SectionList *section_list = GetSectionList();
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if (section_list) {
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const size_t num_sections = section_list->GetSize();
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// "value" is an offset to apply to each top level segment
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for (size_t sect_idx = 0; sect_idx < num_sections; ++sect_idx) {
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// Iterate through the object file sections to find all
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// of the sections that size on disk (to avoid __PAGEZERO)
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// and load them
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SectionSP section_sp(section_list->GetSectionAtIndex(sect_idx));
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if (section_sp && section_sp->GetFileSize() > 0 &&
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section_sp->IsThreadSpecific() == false) {
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if (target.GetSectionLoadList().SetSectionLoadAddress(
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section_sp, section_sp->GetFileAddress() + value))
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++num_loaded_sections;
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}
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}
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}
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return num_loaded_sections > 0;
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}
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size_t ObjectFileJIT::ReadSectionData(lldb_private::Section *section,
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lldb::offset_t section_offset, void *dst,
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size_t dst_len) {
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lldb::offset_t file_size = section->GetFileSize();
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if (section_offset < file_size) {
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size_t src_len = file_size - section_offset;
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if (src_len > dst_len)
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src_len = dst_len;
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const uint8_t *src =
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((uint8_t *)(uintptr_t)section->GetFileOffset()) + section_offset;
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memcpy(dst, src, src_len);
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return src_len;
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}
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return 0;
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}
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size_t ObjectFileJIT::ReadSectionData(
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lldb_private::Section *section,
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lldb_private::DataExtractor §ion_data) {
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if (section->GetFileSize()) {
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const void *src = (void *)(uintptr_t)section->GetFileOffset();
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DataBufferSP data_sp(
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new lldb_private::DataBufferHeap(src, section->GetFileSize()));
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if (data_sp) {
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section_data.SetData(data_sp, 0, data_sp->GetByteSize());
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section_data.SetByteOrder(GetByteOrder());
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section_data.SetAddressByteSize(GetAddressByteSize());
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return section_data.GetByteSize();
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}
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}
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section_data.Clear();
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return 0;
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}
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