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📄 ABI.h(7 KB)
📄 AssertFrameRecognizer.h(1.79 KB)
📄 DynamicLoader.h(12.8 KB)
📄 ExecutionContext.h(23.91 KB)
📄 ExecutionContextScope.h(2.07 KB)
📄 InstrumentationRuntime.h(3.06 KB)
📄 InstrumentationRuntimeStopInfo.h(1.3 KB)
📄 JITLoader.h(2.15 KB)
📄 JITLoaderList.h(1.17 KB)
📄 Language.h(9.42 KB)
📄 LanguageRuntime.h(6.71 KB)
📄 Memory.h(4.66 KB)
📄 MemoryHistory.h(998 B)
📄 MemoryRegionInfo.h(4.76 KB)
📄 ModuleCache.h(2.42 KB)
📄 OperatingSystem.h(2.66 KB)
📄 PathMappingList.h(4.09 KB)
📄 Platform.h(42.4 KB)
📄 Process.h(110.8 KB)
📄 ProcessStructReader.h(3.27 KB)
📄 Queue.h(5.04 KB)
📄 QueueItem.h(5.24 KB)
📄 QueueList.h(3.32 KB)
📄 RegisterCheckpoint.h(1.89 KB)
📄 RegisterContext.h(7.73 KB)
📄 RegisterContextUnwind.h(9.73 KB)
📄 RegisterNumber.h(1.71 KB)
📄 RemoteAwarePlatform.h(3.76 KB)
📄 SectionLoadHistory.h(2.79 KB)
📄 SectionLoadList.h(2.36 KB)
📄 StackFrame.h(20.05 KB)
📄 StackFrameList.h(5.83 KB)
📄 StackFrameRecognizer.h(5.65 KB)
📄 StackID.h(3.16 KB)
📄 StopInfo.h(6.92 KB)
📄 StructuredDataPlugin.h(7.14 KB)
📄 SystemRuntime.h(11.83 KB)
📄 Target.h(49.2 KB)
📄 TargetList.h(7.75 KB)
📄 Thread.h(49.21 KB)
📄 ThreadCollection.h(1.63 KB)
📄 ThreadList.h(4.65 KB)
📄 ThreadPlan.h(24.41 KB)
📄 ThreadPlanBase.h(1.79 KB)
📄 ThreadPlanCallFunction.h(5.55 KB)
📄 ThreadPlanCallFunctionUsingABI.h(1.98 KB)
📄 ThreadPlanCallOnFunctionExit.h(1.56 KB)
📄 ThreadPlanCallUserExpression.h(2.21 KB)
📄 ThreadPlanPython.h(2.11 KB)
📄 ThreadPlanRunToAddress.h(2.04 KB)
📄 ThreadPlanShouldStopHere.h(5.02 KB)
📄 ThreadPlanStack.h(5.48 KB)
📄 ThreadPlanStepInRange.h(4.66 KB)
📄 ThreadPlanStepInstruction.h(1.86 KB)
📄 ThreadPlanStepOut.h(3.67 KB)
📄 ThreadPlanStepOverBreakpoint.h(1.84 KB)
📄 ThreadPlanStepOverRange.h(1.83 KB)
📄 ThreadPlanStepRange.h(3.69 KB)
📄 ThreadPlanStepThrough.h(1.97 KB)
📄 ThreadPlanStepUntil.h(2.12 KB)
📄 ThreadPlanTracer.h(2.32 KB)
📄 ThreadSpec.h(3.35 KB)
📄 UnixSignals.h(4.25 KB)
📄 Unwind.h(2.4 KB)
📄 UnwindAssembly.h(1.81 KB)
📄 UnwindLLDB.h(5.69 KB)

Editing: StackFrameList.h

//===-- StackFrameList.h ----------------------------------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//

#ifndef LLDB_TARGET_STACKFRAMELIST_H
#define LLDB_TARGET_STACKFRAMELIST_H

#include <memory>
#include <mutex>
#include <vector>

#include "lldb/Target/StackFrame.h"

namespace lldb_private {

class StackFrameList {
public:
  // Constructors and Destructors
  StackFrameList(Thread &thread, const lldb::StackFrameListSP &prev_frames_sp,
                 bool show_inline_frames);

~StackFrameList();

/// Get the number of visible frames. Frames may be created if \p can_create
  /// is true. Synthetic (inline) frames expanded from the concrete frame #0
  /// (aka invisible frames) are not included in this count.
  uint32_t GetNumFrames(bool can_create = true);

/// Get the frame at index \p idx. Invisible frames cannot be indexed.
  lldb::StackFrameSP GetFrameAtIndex(uint32_t idx);

/// Get the first concrete frame with index greater than or equal to \p idx.
  /// Unlike \ref GetFrameAtIndex, this cannot return a synthetic frame.
  lldb::StackFrameSP GetFrameWithConcreteFrameIndex(uint32_t unwind_idx);

/// Retrieve the stack frame with the given ID \p stack_id.
  lldb::StackFrameSP GetFrameWithStackID(const StackID &stack_id);

/// Mark a stack frame as the currently selected frame and return its index.
  uint32_t SetSelectedFrame(lldb_private::StackFrame *frame);

/// Get the currently selected frame index.
  uint32_t GetSelectedFrameIndex() const;

/// Mark a stack frame as the currently selected frame using the frame index
  /// \p idx. Like \ref GetFrameAtIndex, invisible frames cannot be selected.
  bool SetSelectedFrameByIndex(uint32_t idx);

/// If the current inline depth (i.e the number of invisible frames) is valid,
  /// subtract it from \p idx. Otherwise simply return \p idx.
  uint32_t GetVisibleStackFrameIndex(uint32_t idx) {
    if (m_current_inlined_depth < UINT32_MAX)
      return idx - m_current_inlined_depth;
    else
      return idx;
  }

/// Calculate and set the current inline depth. This may be used to update
  /// the StackFrameList's set of inline frames when execution stops, e.g when
  /// a breakpoint is hit.
  void CalculateCurrentInlinedDepth();

/// If the currently selected frame comes from the currently selected thread,
  /// point the default file and line of the thread's target to the location
  /// specified by the frame.
  void SetDefaultFileAndLineToSelectedFrame();

/// Clear the cache of frames.
  void Clear();

void Dump(Stream *s);

/// If \p stack_frame_ptr is contained in this StackFrameList, return its
  /// wrapping shared pointer.
  lldb::StackFrameSP
  GetStackFrameSPForStackFramePtr(StackFrame *stack_frame_ptr);

size_t GetStatus(Stream &strm, uint32_t first_frame, uint32_t num_frames,
                   bool show_frame_info, uint32_t num_frames_with_source,
                   bool show_unique = false,
                   const char *frame_marker = nullptr);

protected:
  friend class Thread;

bool SetFrameAtIndex(uint32_t idx, lldb::StackFrameSP &frame_sp);

static void Merge(std::unique_ptr<StackFrameList> &curr_up,
                    lldb::StackFrameListSP &prev_sp);

void GetFramesUpTo(uint32_t end_idx);

void GetOnlyConcreteFramesUpTo(uint32_t end_idx, Unwind &unwinder);

void SynthesizeTailCallFrames(StackFrame &next_frame);

bool GetAllFramesFetched() { return m_concrete_frames_fetched == UINT32_MAX; }

void SetAllFramesFetched() { m_concrete_frames_fetched = UINT32_MAX; }

bool DecrementCurrentInlinedDepth();

void ResetCurrentInlinedDepth();

uint32_t GetCurrentInlinedDepth();

void SetCurrentInlinedDepth(uint32_t new_depth);

typedef std::vector<lldb::StackFrameSP> collection;
  typedef collection::iterator iterator;
  typedef collection::const_iterator const_iterator;

/// The thread this frame list describes.
  Thread &m_thread;

/// The old stack frame list.
  // TODO: The old stack frame list is used to fill in missing frame info
  // heuristically when it's otherwise unavailable (say, because the unwinder
  // fails). We should have stronger checks to make sure that this is a valid
  // source of information.
  lldb::StackFrameListSP m_prev_frames_sp;

/// A mutex for this frame list.
  // TODO: This mutex may not always be held when required. In particular, uses
  // of the StackFrameList APIs in lldb_private::Thread look suspect. Consider
  // passing around a lock_guard reference to enforce proper locking.
  mutable std::recursive_mutex m_mutex;

/// A cache of frames. This may need to be updated when the program counter
  /// changes.
  collection m_frames;

/// The currently selected frame.
  uint32_t m_selected_frame_idx;

/// The number of concrete frames fetched while filling the frame list. This
  /// is only used when synthetic frames are enabled.
  uint32_t m_concrete_frames_fetched;

/// The number of synthetic function activations (invisible frames) expanded
  /// from the concrete frame #0 activation.
  // TODO: Use an optional instead of UINT32_MAX to denote invalid values.
  uint32_t m_current_inlined_depth;

/// The program counter value at the currently selected synthetic activation.
  /// This is only valid if m_current_inlined_depth is valid.
  // TODO: Use an optional instead of UINT32_MAX to denote invalid values.
  lldb::addr_t m_current_inlined_pc;

/// Whether or not to show synthetic (inline) frames. Immutable.
  const bool m_show_inlined_frames;

private:
  StackFrameList(const StackFrameList &) = delete;
  const StackFrameList &operator=(const StackFrameList &) = delete;
};

} // namespace lldb_private

#endif // LLDB_TARGET_STACKFRAMELIST_H

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