[lldb] Move ObjectFileJIT to lldbExpression

In the spirit of not having lldbExpression rely on plugins, this move
makes the most sense. ObjectFileJIT is not really a "plugin" in the
sense that without it, expression evaluation doesn't work at all. This
is different than something like ObjectFileELF where lldb can still
technically debug non-ELF targets without it. For that reason, moving
ObjectFileJIT into Expression where it will be used in conjunction with
IRExecutionUnit makes the most sense.

Differential Revision: https://reviews.llvm.org/D147084

1 files changed, 0 insertions, 235 deletions

diff --git a/lldb/source/Plugins/ObjectFile/JIT/ObjectFileJIT.cpp b/lldb/source/Plugins/ObjectFile/JIT/ObjectFileJIT.cpp
deleted file mode 100644
index 2ea83e4..0000000
--- a/lldb/source/Plugins/ObjectFile/JIT/ObjectFileJIT.cpp
+++ /dev/null
@@ -1,235 +0,0 @@
-//===-- ObjectFileJIT.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 "llvm/ADT/StringRef.h"
-
-#include "ObjectFileJIT.h"
-#include "lldb/Core/Debugger.h"
-#include "lldb/Core/FileSpecList.h"
-#include "lldb/Core/Module.h"
-#include "lldb/Core/ModuleSpec.h"
-#include "lldb/Core/PluginManager.h"
-#include "lldb/Core/Section.h"
-#include "lldb/Core/StreamFile.h"
-#include "lldb/Host/Host.h"
-#include "lldb/Symbol/ObjectFile.h"
-#include "lldb/Target/Platform.h"
-#include "lldb/Target/Process.h"
-#include "lldb/Target/SectionLoadList.h"
-#include "lldb/Target/Target.h"
-#include "lldb/Utility/ArchSpec.h"
-#include "lldb/Utility/DataBuffer.h"
-#include "lldb/Utility/DataBufferHeap.h"
-#include "lldb/Utility/FileSpec.h"
-#include "lldb/Utility/Log.h"
-#include "lldb/Utility/RangeMap.h"
-#include "lldb/Utility/StreamString.h"
-#include "lldb/Utility/Timer.h"
-#include "lldb/Utility/UUID.h"
-
-#ifndef __APPLE__
-#include "Utility/UuidCompatibility.h"
-#endif
-
-using namespace lldb;
-using namespace lldb_private;
-
-LLDB_PLUGIN_DEFINE(ObjectFileJIT)
-
-char ObjectFileJIT::ID;
-
-void ObjectFileJIT::Initialize() {
-  PluginManager::RegisterPlugin(GetPluginNameStatic(),
-                                GetPluginDescriptionStatic(), CreateInstance,
-                                CreateMemoryInstance, GetModuleSpecifications);
-}
-
-void ObjectFileJIT::Terminate() {
-  PluginManager::UnregisterPlugin(CreateInstance);
-}
-
-ObjectFile *ObjectFileJIT::CreateInstance(const lldb::ModuleSP &module_sp,
-                                          DataBufferSP data_sp,
-                                          lldb::offset_t data_offset,
-                                          const FileSpec *file,
-                                          lldb::offset_t file_offset,
-                                          lldb::offset_t length) {
-  // JIT'ed object file is backed by the ObjectFileJITDelegate, never read from
-  // a file
-  return nullptr;
-}
-
-ObjectFile *ObjectFileJIT::CreateMemoryInstance(const lldb::ModuleSP &module_sp,
-                                                WritableDataBufferSP data_sp,
-                                                const ProcessSP &process_sp,
-                                                lldb::addr_t header_addr) {
-  // JIT'ed object file is backed by the ObjectFileJITDelegate, never read from
-  // memory
-  return nullptr;
-}
-
-size_t ObjectFileJIT::GetModuleSpecifications(
-    const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp,
-    lldb::offset_t data_offset, lldb::offset_t file_offset,
-    lldb::offset_t length, lldb_private::ModuleSpecList &specs) {
-  // JIT'ed object file can't be read from a file on disk
-  return 0;
-}
-
-ObjectFileJIT::ObjectFileJIT(const lldb::ModuleSP &module_sp,
-                             const ObjectFileJITDelegateSP &delegate_sp)
-    : ObjectFile(module_sp, nullptr, 0, 0, DataBufferSP(), 0), m_delegate_wp() {
-  if (delegate_sp) {
-    m_delegate_wp = delegate_sp;
-    m_data.SetByteOrder(delegate_sp->GetByteOrder());
-    m_data.SetAddressByteSize(delegate_sp->GetAddressByteSize());
-  }
-}
-
-ObjectFileJIT::~ObjectFileJIT() = default;
-
-bool ObjectFileJIT::ParseHeader() {
-  // JIT code is never in a file, nor is it required to have any header
-  return false;
-}
-
-ByteOrder ObjectFileJIT::GetByteOrder() const { return m_data.GetByteOrder(); }
-
-bool ObjectFileJIT::IsExecutable() const { return false; }
-
-uint32_t ObjectFileJIT::GetAddressByteSize() const {
-  return m_data.GetAddressByteSize();
-}
-
-void ObjectFileJIT::ParseSymtab(Symtab &symtab) {
-  ObjectFileJITDelegateSP delegate_sp(m_delegate_wp.lock());
-  if (delegate_sp)
-    delegate_sp->PopulateSymtab(this, symtab);
-}
-
-bool ObjectFileJIT::IsStripped() {
-  return false; // JIT code that is in a module is never stripped
-}
-
-void ObjectFileJIT::CreateSections(SectionList &unified_section_list) {
-  if (!m_sections_up) {
-    m_sections_up = std::make_unique<SectionList>();
-    ObjectFileJITDelegateSP delegate_sp(m_delegate_wp.lock());
-    if (delegate_sp) {
-      delegate_sp->PopulateSectionList(this, *m_sections_up);
-      unified_section_list = *m_sections_up;
-    }
-  }
-}
-
-void ObjectFileJIT::Dump(Stream *s) {
-  ModuleSP module_sp(GetModule());
-  if (module_sp) {
-    std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
-    s->Printf("%p: ", static_cast<void *>(this));
-    s->Indent();
-    s->PutCString("ObjectFileJIT");
-
-    if (ArchSpec arch = GetArchitecture())
-      *s << ", arch = " << arch.GetArchitectureName();
-
-    s->EOL();
-
-    SectionList *sections = GetSectionList();
-    if (sections)
-      sections->Dump(s->AsRawOstream(), s->GetIndentLevel(), nullptr, true,
-                     UINT32_MAX);
-
-    if (m_symtab_up)
-      m_symtab_up->Dump(s, nullptr, eSortOrderNone);
-  }
-}
-
-UUID ObjectFileJIT::GetUUID() {
-  // TODO: maybe get from delegate, not needed for first pass
-  return UUID();
-}
-
-uint32_t ObjectFileJIT::GetDependentModules(FileSpecList &files) {
-  // JIT modules don't have dependencies, but they could
-  // if external functions are called and we know where they are
-  files.Clear();
-  return 0;
-}
-
-lldb_private::Address ObjectFileJIT::GetEntryPointAddress() {
-  return Address();
-}
-
-lldb_private::Address ObjectFileJIT::GetBaseAddress() { return Address(); }
-
-ObjectFile::Type ObjectFileJIT::CalculateType() { return eTypeJIT; }
-
-ObjectFile::Strata ObjectFileJIT::CalculateStrata() { return eStrataJIT; }
-
-ArchSpec ObjectFileJIT::GetArchitecture() {
-  if (ObjectFileJITDelegateSP delegate_sp = m_delegate_wp.lock())
-    return delegate_sp->GetArchitecture();
-  return ArchSpec();
-}
-
-bool ObjectFileJIT::SetLoadAddress(Target &target, lldb::addr_t value,
-                                   bool value_is_offset) {
-  size_t num_loaded_sections = 0;
-  SectionList *section_list = GetSectionList();
-  if (section_list) {
-    const size_t num_sections = section_list->GetSize();
-    // "value" is an offset to apply to each top level segment
-    for (size_t sect_idx = 0; sect_idx < num_sections; ++sect_idx) {
-      // Iterate through the object file sections to find all of the sections
-      // that size on disk (to avoid __PAGEZERO) and load them
-      SectionSP section_sp(section_list->GetSectionAtIndex(sect_idx));
-      if (section_sp && section_sp->GetFileSize() > 0 &&
-          !section_sp->IsThreadSpecific()) {
-        if (target.GetSectionLoadList().SetSectionLoadAddress(
-                section_sp, section_sp->GetFileAddress() + value))
-          ++num_loaded_sections;
-      }
-    }
-  }
-  return num_loaded_sections > 0;
-}
-
-size_t ObjectFileJIT::ReadSectionData(lldb_private::Section *section,
-                                      lldb::offset_t section_offset, void *dst,
-                                      size_t dst_len) {
-  lldb::offset_t file_size = section->GetFileSize();
-  if (section_offset < file_size) {
-    size_t src_len = file_size - section_offset;
-    if (src_len > dst_len)
-      src_len = dst_len;
-    const uint8_t *src =
-        ((uint8_t *)(uintptr_t)section->GetFileOffset()) + section_offset;
-
-    memcpy(dst, src, src_len);
-    return src_len;
-  }
-  return 0;
-}
-
-size_t ObjectFileJIT::ReadSectionData(
-    lldb_private::Section *section,
-    lldb_private::DataExtractor &section_data) {
-  if (section->GetFileSize()) {
-    const void *src = (void *)(uintptr_t)section->GetFileOffset();
-
-    DataBufferSP data_sp =
-        std::make_shared<DataBufferHeap>(src, section->GetFileSize());
-    section_data.SetData(data_sp, 0, data_sp->GetByteSize());
-    section_data.SetByteOrder(GetByteOrder());
-    section_data.SetAddressByteSize(GetAddressByteSize());
-    return section_data.GetByteSize();
-  }
-  section_data.Clear();
-  return 0;
-}