lldb/source/Target/TraceCursor.cpp

   1 //===-- TraceCursor.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 "lldb/Target/TraceCursor.h"
  10
  11 #include "lldb/Target/ExecutionContext.h"
  12 #include "lldb/Target/Trace.h"
  13
  14 using namespace lldb;
  15 using namespace lldb_private;
  16 using namespace llvm;
  17
  18 TraceCursor::TraceCursor(lldb::ThreadSP thread_sp)
  19     : m_exe_ctx_ref(ExecutionContext(thread_sp)) {}
  20
  21 ExecutionContextRef &TraceCursor::GetExecutionContextRef() {
  22   return m_exe_ctx_ref;
  23 }
  24
  25 void TraceCursor::SetForwards(bool forwards) { m_forwards = forwards; }
  26
  27 bool TraceCursor::IsForwards() const { return m_forwards; }
  28
  29 bool TraceCursor::IsError() const {
  30   return GetItemKind() == lldb::eTraceItemKindError;
  31 }
  32
  33 bool TraceCursor::IsEvent() const {
  34   return GetItemKind() == lldb::eTraceItemKindEvent;
  35 }
  36
  37 bool TraceCursor::IsInstruction() const {
  38   return GetItemKind() == lldb::eTraceItemKindInstruction;
  39 }
  40
  41 const char *TraceCursor::GetEventTypeAsString() const {
  42   return EventKindToString(GetEventType());
  43 }
  44
  45 const char *TraceCursor::EventKindToString(lldb::TraceEvent event_kind) {
  46   switch (event_kind) {
  47   case lldb::eTraceEventDisabledHW:
  48     return "hardware disabled tracing";
  49   case lldb::eTraceEventDisabledSW:
  50     return "software disabled tracing";
  51   case lldb::eTraceEventCPUChanged:
  52     return "CPU core changed";
  53   case lldb::eTraceEventHWClockTick:
  54     return "HW clock tick";
  55   case lldb::eTraceEventSyncPoint:
  56     return "trace synchronization point";
  57   }
  58   llvm_unreachable("Fully covered switch above");
  59 }