1 files changed, 70 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/source/Plugins/ObjectFile/Placeholder/ObjectFilePlaceholder.cpp b/contrib/llvm-project/lldb/source/Plugins/ObjectFile/Placeholder/ObjectFilePlaceholder.cpp
new file mode 100644
index 000000000000..ec1f3f61892d
--- /dev/null
+++ b/contrib/llvm-project/lldb/source/Plugins/ObjectFile/Placeholder/ObjectFilePlaceholder.cpp
@@ -0,0 +1,70 @@
+//===-- 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.GetSectionLoadList().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);
+}