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
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
//===-- BreakpointResolverAddress.cpp ---------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Breakpoint/BreakpointResolverAddress.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Breakpoint/BreakpointLocation.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/StreamString.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Target.h"
using namespace lldb;
using namespace lldb_private;
//----------------------------------------------------------------------
// BreakpointResolverAddress:
//----------------------------------------------------------------------
BreakpointResolverAddress::BreakpointResolverAddress(
Breakpoint *bkpt, const Address &addr, const FileSpec &module_spec)
: BreakpointResolver(bkpt, BreakpointResolver::AddressResolver),
m_addr(addr), m_resolved_addr(LLDB_INVALID_ADDRESS),
m_module_filespec(module_spec) {}
BreakpointResolverAddress::BreakpointResolverAddress(Breakpoint *bkpt,
const Address &addr)
: BreakpointResolver(bkpt, BreakpointResolver::AddressResolver),
m_addr(addr), m_resolved_addr(LLDB_INVALID_ADDRESS), m_module_filespec() {
}
BreakpointResolverAddress::~BreakpointResolverAddress() {}
void BreakpointResolverAddress::ResolveBreakpoint(SearchFilter &filter) {
// If the address is not section relative, then we should not try to
// re-resolve it, it is just some
// random address and we wouldn't know what to do on reload. But if it is
// section relative, we need to
// re-resolve it since the section it's in may have shifted on re-run.
bool re_resolve = false;
if (m_addr.GetSection() || m_module_filespec)
re_resolve = true;
else if (m_breakpoint->GetNumLocations() == 0)
re_resolve = true;
if (re_resolve)
BreakpointResolver::ResolveBreakpoint(filter);
}
void BreakpointResolverAddress::ResolveBreakpointInModules(
SearchFilter &filter, ModuleList &modules) {
// See comment in ResolveBreakpoint.
bool re_resolve = false;
if (m_addr.GetSection())
re_resolve = true;
else if (m_breakpoint->GetNumLocations() == 0)
re_resolve = true;
if (re_resolve)
BreakpointResolver::ResolveBreakpointInModules(filter, modules);
}
Searcher::CallbackReturn
BreakpointResolverAddress::SearchCallback(SearchFilter &filter,
SymbolContext &context, Address *addr,
bool containing) {
assert(m_breakpoint != NULL);
if (filter.AddressPasses(m_addr)) {
if (m_breakpoint->GetNumLocations() == 0) {
// If the address is just an offset, and we're given a module, see if we
// can find the appropriate module
// loaded in the binary, and fix up m_addr to use that.
if (!m_addr.IsSectionOffset() && m_module_filespec) {
Target &target = m_breakpoint->GetTarget();
ModuleSpec module_spec(m_module_filespec);
ModuleSP module_sp = target.GetImages().FindFirstModule(module_spec);
if (module_sp) {
Address tmp_address;
if (module_sp->ResolveFileAddress(m_addr.GetOffset(), tmp_address))
m_addr = tmp_address;
}
}
m_resolved_addr = m_addr.GetLoadAddress(&m_breakpoint->GetTarget());
BreakpointLocationSP bp_loc_sp(AddLocation(m_addr));
if (bp_loc_sp && !m_breakpoint->IsInternal()) {
StreamString s;
bp_loc_sp->GetDescription(&s, lldb::eDescriptionLevelVerbose);
Log *log(
lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
if (log)
log->Printf("Added location: %s\n", s.GetData());
}
} else {
BreakpointLocationSP loc_sp = m_breakpoint->GetLocationAtIndex(0);
lldb::addr_t cur_load_location =
m_addr.GetLoadAddress(&m_breakpoint->GetTarget());
if (cur_load_location != m_resolved_addr) {
m_resolved_addr = cur_load_location;
loc_sp->ClearBreakpointSite();
loc_sp->ResolveBreakpointSite();
}
}
}
return Searcher::eCallbackReturnStop;
}
Searcher::Depth BreakpointResolverAddress::GetDepth() {
return Searcher::eDepthTarget;
}
void BreakpointResolverAddress::GetDescription(Stream *s) {
s->PutCString("address = ");
m_addr.Dump(s, m_breakpoint->GetTarget().GetProcessSP().get(),
Address::DumpStyleModuleWithFileAddress,
Address::DumpStyleLoadAddress);
}
void BreakpointResolverAddress::Dump(Stream *s) const {}
lldb::BreakpointResolverSP
BreakpointResolverAddress::CopyForBreakpoint(Breakpoint &breakpoint) {
lldb::BreakpointResolverSP ret_sp(
new BreakpointResolverAddress(&breakpoint, m_addr));
return ret_sp;
}
|
