lldb/tools/lldb-vscode/LLDBUtils.cpp

   1 //===-- LLDBUtils.cpp -------------------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "LLDBUtils.h"
  10 #include "VSCode.h"
  11
  12 namespace lldb_vscode {
  13
  14 void RunLLDBCommands(llvm::StringRef prefix,
  15                      const llvm::ArrayRef<std::string> &commands,
  16                      llvm::raw_ostream &strm) {
  17   if (commands.empty())
  18     return;
  19   lldb::SBCommandInterpreter interp = g_vsc.debugger.GetCommandInterpreter();
  20   if (!prefix.empty())
  21     strm << prefix << "\n";
  22   for (const auto &command : commands) {
  23     lldb::SBCommandReturnObject result;
  24     strm << "(lldb) " << command << "\n";
  25     interp.HandleCommand(command.c_str(), result);
  26     auto output_len = result.GetOutputSize();
  27     if (output_len) {
  28       const char *output = result.GetOutput();
  29       strm << output;
  30     }
  31     auto error_len = result.GetErrorSize();
  32     if (error_len) {
  33       const char *error = result.GetError();
  34       strm << error;
  35     }
  36   }
  37 }
  38
  39 std::string RunLLDBCommands(llvm::StringRef prefix,
  40                             const llvm::ArrayRef<std::string> &commands) {
  41   std::string s;
  42   llvm::raw_string_ostream strm(s);
  43   RunLLDBCommands(prefix, commands, strm);
  44   strm.flush();
  45   return s;
  46 }
  47
  48 bool ThreadHasStopReason(lldb::SBThread &thread) {
  49   switch (thread.GetStopReason()) {
  50   case lldb::eStopReasonTrace:
  51   case lldb::eStopReasonPlanComplete:
  52   case lldb::eStopReasonBreakpoint:
  53   case lldb::eStopReasonWatchpoint:
  54   case lldb::eStopReasonInstrumentation:
  55   case lldb::eStopReasonSignal:
  56   case lldb::eStopReasonException:
  57   case lldb::eStopReasonExec:
  58   case lldb::eStopReasonProcessorTrace:
  59   case lldb::eStopReasonFork:
  60   case lldb::eStopReasonVFork:
  61   case lldb::eStopReasonVForkDone:
  62     return true;
  63   case lldb::eStopReasonThreadExiting:
  64   case lldb::eStopReasonInvalid:
  65   case lldb::eStopReasonNone:
  66     break;
  67   }
  68   return false;
  69 }
  70
  71 static uint32_t constexpr THREAD_INDEX_SHIFT = 19;
  72
  73 uint32_t GetLLDBThreadIndexID(uint64_t dap_frame_id) {
  74   return dap_frame_id >> THREAD_INDEX_SHIFT;
  75 }
  76
  77 uint32_t GetLLDBFrameID(uint64_t dap_frame_id) {
  78   return dap_frame_id & ((1u << THREAD_INDEX_SHIFT) - 1);
  79 }
  80
  81 int64_t MakeVSCodeFrameID(lldb::SBFrame &frame) {
  82   return (int64_t)(frame.GetThread().GetIndexID() << THREAD_INDEX_SHIFT |
  83                    frame.GetFrameID());
  84 }
  85
  86 } // namespace lldb_vscode