File: HistoryUnwind.h

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb11u2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,634,820 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (46 lines) | stat: -rw-r--r-- 1,449 bytes parent folder | download | duplicates (21)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
//===-- HistoryUnwind.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_SOURCE_PLUGINS_PROCESS_UTILITY_HISTORYUNWIND_H
#define LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_HISTORYUNWIND_H

#include <vector>

#include "lldb/Target/Unwind.h"
#include "lldb/lldb-private.h"

namespace lldb_private {

class HistoryUnwind : public lldb_private::Unwind {
public:
  HistoryUnwind(Thread &thread, std::vector<lldb::addr_t> pcs,
                bool pcs_are_call_addresses = false);

  ~HistoryUnwind() override;

protected:
  void DoClear() override;

  lldb::RegisterContextSP
  DoCreateRegisterContextForFrame(StackFrame *frame) override;

  bool DoGetFrameInfoAtIndex(uint32_t frame_idx, lldb::addr_t &cfa,
                             lldb::addr_t &pc,
                             bool &behaves_like_zeroth_frame) override;
  uint32_t DoGetFrameCount() override;

private:
  std::vector<lldb::addr_t> m_pcs;
  /// This boolean indicates that the PCs in the non-0 frames are call
  /// addresses and not return addresses.
  bool m_pcs_are_call_addresses;
};

} // namespace lldb_private

#endif // LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_HISTORYUNWIND_H