1 files changed, 105 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/source/Plugins/SymbolFile/JSON/SymbolFileJSON.cpp b/contrib/llvm-project/lldb/source/Plugins/SymbolFile/JSON/SymbolFileJSON.cpp
new file mode 100644
index 000000000000..1f3ca27417e4
--- /dev/null
+++ b/contrib/llvm-project/lldb/source/Plugins/SymbolFile/JSON/SymbolFileJSON.cpp
@@ -0,0 +1,105 @@
+//===-- SymbolFileJSON.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 "SymbolFileJSON.h"
+
+#include "Plugins/ObjectFile/JSON/ObjectFileJSON.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Symbol/CompileUnit.h"
+#include "lldb/Symbol/Function.h"
+#include "lldb/Symbol/ObjectFile.h"
+#include "lldb/Symbol/Symbol.h"
+#include "lldb/Symbol/SymbolContext.h"
+#include "lldb/Symbol/Symtab.h"
+#include "lldb/Symbol/TypeList.h"
+#include "lldb/Utility/LLDBLog.h"
+#include "lldb/Utility/Log.h"
+#include "lldb/Utility/RegularExpression.h"
+#include "lldb/Utility/Timer.h"
+#include "llvm/Support/MemoryBuffer.h"
+
+#include <memory>
+#include <optional>
+
+using namespace llvm;
+using namespace lldb;
+using namespace lldb_private;
+
+LLDB_PLUGIN_DEFINE(SymbolFileJSON)
+
+char SymbolFileJSON::ID;
+
+SymbolFileJSON::SymbolFileJSON(lldb::ObjectFileSP objfile_sp)
+    : SymbolFileCommon(std::move(objfile_sp)) {}
+
+void SymbolFileJSON::Initialize() {
+  PluginManager::RegisterPlugin(GetPluginNameStatic(),
+                                GetPluginDescriptionStatic(), CreateInstance);
+}
+
+void SymbolFileJSON::Terminate() {
+  PluginManager::UnregisterPlugin(CreateInstance);
+}
+
+llvm::StringRef SymbolFileJSON::GetPluginDescriptionStatic() {
+  return "Reads debug symbols from a JSON symbol table.";
+}
+
+SymbolFile *SymbolFileJSON::CreateInstance(ObjectFileSP objfile_sp) {
+  return new SymbolFileJSON(std::move(objfile_sp));
+}
+
+uint32_t SymbolFileJSON::CalculateAbilities() {
+  if (!m_objfile_sp || !llvm::isa<ObjectFileJSON>(*m_objfile_sp))
+    return 0;
+
+  return GlobalVariables | Functions;
+}
+
+uint32_t SymbolFileJSON::ResolveSymbolContext(const Address &so_addr,
+                                              SymbolContextItem resolve_scope,
+                                              SymbolContext &sc) {
+  std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
+  if (m_objfile_sp->GetSymtab() == nullptr)
+    return 0;
+
+  uint32_t resolved_flags = 0;
+  if (resolve_scope & eSymbolContextSymbol) {
+    sc.symbol = m_objfile_sp->GetSymtab()->FindSymbolContainingFileAddress(
+        so_addr.GetFileAddress());
+    if (sc.symbol)
+      resolved_flags |= eSymbolContextSymbol;
+  }
+  return resolved_flags;
+}
+
+CompUnitSP SymbolFileJSON::ParseCompileUnitAtIndex(uint32_t idx) { return {}; }
+
+void SymbolFileJSON::GetTypes(SymbolContextScope *sc_scope, TypeClass type_mask,
+                              lldb_private::TypeList &type_list) {}
+
+void SymbolFileJSON::AddSymbols(Symtab &symtab) {
+  if (!m_objfile_sp)
+    return;
+
+  Symtab *json_symtab = m_objfile_sp->GetSymtab();
+  if (!json_symtab)
+    return;
+
+  if (&symtab == json_symtab)
+    return;
+
+  // Merge the two symbol tables.
+  const size_t num_new_symbols = json_symtab->GetNumSymbols();
+  for (size_t i = 0; i < num_new_symbols; ++i) {
+    Symbol *s = json_symtab->SymbolAtIndex(i);
+    symtab.AddSymbol(*s);
+  }
+  symtab.Finalize();
+}