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
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
//===-- AppleThreadPlanStepThroughObjCTrampoline.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_LANGUAGERUNTIME_OBJC_APPLEOBJCRUNTIME_APPLETHREADPLANSTEPTHROUGHOBJCTRAMPOLINE_H
#define LLDB_SOURCE_PLUGINS_LANGUAGERUNTIME_OBJC_APPLEOBJCRUNTIME_APPLETHREADPLANSTEPTHROUGHOBJCTRAMPOLINE_H
#include "AppleObjCTrampolineHandler.h"
#include "lldb/Core/Value.h"
#include "lldb/Target/ThreadPlan.h"
#include "lldb/Target/ThreadPlanStepInRange.h"
#include "lldb/Target/ThreadPlanStepOut.h"
#include "lldb/Target/ThreadPlanShouldStopHere.h"
#include "lldb/lldb-enumerations.h"
#include "lldb/lldb-types.h"
namespace lldb_private {
class AppleThreadPlanStepThroughObjCTrampoline : public ThreadPlan {
public:
AppleThreadPlanStepThroughObjCTrampoline(
Thread &thread, AppleObjCTrampolineHandler &trampoline_handler,
ValueList &values, lldb::addr_t isa_addr, lldb::addr_t sel_addr,
bool stop_others);
~AppleThreadPlanStepThroughObjCTrampoline() override;
static bool PreResumeInitializeFunctionCaller(void *myself);
void GetDescription(Stream *s, lldb::DescriptionLevel level) override;
bool ValidatePlan(Stream *error) override;
lldb::StateType GetPlanRunState() override;
bool ShouldStop(Event *event_ptr) override;
bool StopOthers() override { return m_stop_others; }
// The base class MischiefManaged does some cleanup - so you have to call it
// in your MischiefManaged derived class.
bool MischiefManaged() override;
void DidPush() override;
bool WillStop() override;
protected:
bool DoPlanExplainsStop(Event *event_ptr) override;
private:
bool InitializeFunctionCaller();
AppleObjCTrampolineHandler &m_trampoline_handler; /// The handler itself.
lldb::addr_t m_args_addr; /// Stores the address for our step through function
/// result structure.
ValueList m_input_values;
lldb::addr_t m_isa_addr; /// isa_addr and sel_addr are the keys we will use to
/// cache the implementation.
lldb::addr_t m_sel_addr;
lldb::ThreadPlanSP m_func_sp; /// This is the function call plan. We fill it
/// at start, then set it to NULL when this plan
/// is done. That way we know to go on to:
lldb::ThreadPlanSP m_run_to_sp; /// The plan that runs to the target.
FunctionCaller *m_impl_function; /// This is a pointer to a impl function that
/// is owned by the client that pushes this
/// plan.
bool m_stop_others; /// Whether we should stop other threads.
};
class AppleThreadPlanStepThroughDirectDispatch: public ThreadPlanStepOut {
public:
AppleThreadPlanStepThroughDirectDispatch(
Thread &thread, AppleObjCTrampolineHandler &handler,
llvm::StringRef dispatch_func_name, bool stop_others,
LazyBool step_in_avoids_code_without_debug_info);
~AppleThreadPlanStepThroughDirectDispatch() override;
void GetDescription(Stream *s, lldb::DescriptionLevel level) override;
bool ShouldStop(Event *event_ptr) override;
bool StopOthers() override { return m_stop_others; }
bool MischiefManaged() override;
bool DoWillResume(lldb::StateType resume_state, bool current_plan) override;
void SetFlagsToDefault() override {
GetFlags().Set(ThreadPlanStepInRange::GetDefaultFlagsValue());
}
protected:
bool DoPlanExplainsStop(Event *event_ptr) override;
AppleObjCTrampolineHandler &m_trampoline_handler;
std::string m_dispatch_func_name; /// Which dispatch function we're stepping
/// through.
lldb::ThreadPlanSP m_objc_step_through_sp; /// When we hit an objc_msgSend,
/// we'll use this plan to get to
/// its target.
std::vector<lldb::BreakpointSP> m_msgSend_bkpts; /// Breakpoints on the objc
/// dispatch functions.
bool m_at_msg_send; /// Are we currently handling an msg_send
bool m_stop_others; /// Whether we should stop other threads.
};
} // namespace lldb_private
#endif // LLDB_SOURCE_PLUGINS_LANGUAGERUNTIME_OBJC_APPLEOBJCRUNTIME_APPLETHREADPLANSTEPTHROUGHOBJCTRAMPOLINE_H
|
