1 //===-- NativeBreakpoint.cpp ------------------------------------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 #include "lldb/Host/common/NativeBreakpoint.h"
11
12 #include "lldb/lldb-defines.h"
13 #include "lldb/Core/Error.h"
14 #include "lldb/Core/Log.h"
15
16 using namespace lldb_private;
17
NativeBreakpoint(lldb::addr_t addr)18 NativeBreakpoint::NativeBreakpoint (lldb::addr_t addr) :
19 m_addr (addr),
20 m_ref_count (1),
21 m_enabled (true)
22 {
23 assert (addr != LLDB_INVALID_ADDRESS && "breakpoint set for invalid address");
24 }
25
~NativeBreakpoint()26 NativeBreakpoint::~NativeBreakpoint ()
27 {
28 }
29
30 void
AddRef()31 NativeBreakpoint::AddRef ()
32 {
33 ++m_ref_count;
34
35 Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
36 if (log)
37 log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " bumped up, new ref count %" PRIu32, __FUNCTION__, m_addr, m_ref_count);
38 }
39
40 int32_t
DecRef()41 NativeBreakpoint::DecRef ()
42 {
43 --m_ref_count;
44
45 Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
46 if (log)
47 log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " ref count decremented, new ref count %" PRIu32, __FUNCTION__, m_addr, m_ref_count);
48
49 return m_ref_count;
50 }
51
52 Error
Enable()53 NativeBreakpoint::Enable ()
54 {
55 Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
56
57 if (m_enabled)
58 {
59 // We're already enabled. Just log and exit.
60 if (log)
61 log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " already enabled, ignoring.", __FUNCTION__, m_addr);
62 return Error ();
63 }
64
65 // Log and enable.
66 if (log)
67 log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " enabling...", __FUNCTION__, m_addr);
68
69 Error error = DoEnable ();
70 if (error.Success ())
71 {
72 m_enabled = true;
73 if (log)
74 log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " enable SUCCESS.", __FUNCTION__, m_addr);
75 }
76 else
77 {
78 if (log)
79 log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " enable FAIL: %s", __FUNCTION__, m_addr, error.AsCString ());
80 }
81
82 return error;
83 }
84
85 Error
Disable()86 NativeBreakpoint::Disable ()
87 {
88 Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
89
90 if (!m_enabled)
91 {
92 // We're already disabled. Just log and exit.
93 if (log)
94 log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " already disabled, ignoring.", __FUNCTION__, m_addr);
95 return Error ();
96 }
97
98 // Log and disable.
99 if (log)
100 log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " disabling...", __FUNCTION__, m_addr);
101
102 Error error = DoDisable ();
103 if (error.Success ())
104 {
105 m_enabled = false;
106 if (log)
107 log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " disable SUCCESS.", __FUNCTION__, m_addr);
108 }
109 else
110 {
111 if (log)
112 log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " disable FAIL: %s", __FUNCTION__, m_addr, error.AsCString ());
113 }
114
115 return error;
116 }
117