1 files changed, 98 insertions, 0 deletions
diff --git a/tools/lldb-vscode/LLDBUtils.cpp b/tools/lldb-vscode/LLDBUtils.cpp
new file mode 100644
index 000000000000..9653522a2d3a
--- /dev/null
+++ b/tools/lldb-vscode/LLDBUtils.cpp
@@ -0,0 +1,98 @@
+//===-- LLDBUtils.cpp -------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "LLDBUtils.h"
+#include "VSCode.h"
+
+namespace lldb_vscode {
+
+void RunLLDBCommands(llvm::StringRef prefix,
+                     const llvm::ArrayRef<std::string> &commands,
+                     llvm::raw_ostream &strm) {
+  if (commands.empty())
+    return;
+  lldb::SBCommandInterpreter interp = g_vsc.debugger.GetCommandInterpreter();
+  if (!prefix.empty())
+    strm << prefix << "\n";
+  for (const auto &command : commands) {
+    lldb::SBCommandReturnObject result;
+    strm << "(lldb) " << command << "\n";
+    interp.HandleCommand(command.c_str(), result);
+    auto output_len = result.GetOutputSize();
+    if (output_len) {
+      const char *output = result.GetOutput();
+      strm << output;
+    }
+    auto error_len = result.GetErrorSize();
+    if (error_len) {
+      const char *error = result.GetError();
+      strm << error;
+    }
+  }
+}
+
+std::string RunLLDBCommands(llvm::StringRef prefix,
+                            const llvm::ArrayRef<std::string> &commands) {
+  std::string s;
+  llvm::raw_string_ostream strm(s);
+  RunLLDBCommands(prefix, commands, strm);
+  strm.flush();
+  return s;
+}
+
+bool ThreadHasStopReason(lldb::SBThread &thread) {
+  switch (thread.GetStopReason()) {
+  case lldb::eStopReasonTrace:
+  case lldb::eStopReasonPlanComplete:
+  case lldb::eStopReasonBreakpoint:
+  case lldb::eStopReasonWatchpoint:
+  case lldb::eStopReasonInstrumentation:
+  case lldb::eStopReasonSignal:
+  case lldb::eStopReasonException:
+  case lldb::eStopReasonExec:
+    return true;
+  case lldb::eStopReasonThreadExiting:
+  case lldb::eStopReasonInvalid:
+  case lldb::eStopReasonNone:
+    break;
+  }
+  return false;
+}
+
+static uint32_t constexpr THREAD_INDEX_SHIFT = 19;
+
+uint32_t GetLLDBThreadIndexID(uint64_t dap_frame_id) {
+  return dap_frame_id >> THREAD_INDEX_SHIFT;
+}
+
+uint32_t GetLLDBFrameID(uint64_t dap_frame_id) {
+  return dap_frame_id & ((1u << THREAD_INDEX_SHIFT) - 1);
+}
+
+int64_t MakeVSCodeFrameID(lldb::SBFrame &frame) {
+  return (int64_t)(frame.GetThread().GetIndexID() << THREAD_INDEX_SHIFT |
+                   frame.GetFrameID());
+}
+
+static uint32_t constexpr BREAKPOINT_ID_SHIFT = 22;
+
+uint32_t GetLLDBBreakpointID(uint64_t dap_breakpoint_id) {
+  return dap_breakpoint_id >> BREAKPOINT_ID_SHIFT;
+}
+
+uint32_t GetLLDBBreakpointLocationID(uint64_t dap_breakpoint_id) {
+  return dap_breakpoint_id & ((1u << BREAKPOINT_ID_SHIFT) - 1);
+}
+
+int64_t MakeVSCodeBreakpointID(lldb::SBBreakpointLocation &bp_loc) {
+  return (int64_t)(bp_loc.GetBreakpoint().GetID() << BREAKPOINT_ID_SHIFT |
+                   bp_loc.GetID());
+}
+
+} // namespace lldb_vscode