1 //===-- InstrumentationRuntime.cpp ----------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===---------------------------------------------------------------------===//
8 
9 #include "lldb/Target/InstrumentationRuntime.h"
10 #include "lldb/Core/Module.h"
11 #include "lldb/Core/ModuleList.h"
12 #include "lldb/Core/PluginManager.h"
13 #include "lldb/Target/Process.h"
14 #include "lldb/Utility/RegularExpression.h"
15 #include "lldb/lldb-private.h"
16 
17 using namespace lldb;
18 using namespace lldb_private;
19 
20 void InstrumentationRuntime::ModulesDidLoad(
21     lldb_private::ModuleList &module_list, lldb_private::Process *process,
22     InstrumentationRuntimeCollection &runtimes) {
23   InstrumentationRuntimeCreateInstance create_callback = nullptr;
24   InstrumentationRuntimeGetType get_type_callback;
25   for (uint32_t idx = 0;; ++idx) {
26     create_callback =
27         PluginManager::GetInstrumentationRuntimeCreateCallbackAtIndex(idx);
28     if (create_callback == nullptr)
29       break;
30     get_type_callback =
31         PluginManager::GetInstrumentationRuntimeGetTypeCallbackAtIndex(idx);
32     InstrumentationRuntimeType type = get_type_callback();
33 
34     InstrumentationRuntimeCollection::iterator pos;
35     pos = runtimes.find(type);
36     if (pos == runtimes.end()) {
37       runtimes[type] = create_callback(process->shared_from_this());
38     }
39   }
40 }
41 
42 void InstrumentationRuntime::ModulesDidLoad(
43     lldb_private::ModuleList &module_list) {
44   if (IsActive())
45     return;
46 
47   if (GetRuntimeModuleSP()) {
48     Activate();
49     return;
50   }
51 
52   module_list.ForEach([this](const lldb::ModuleSP module_sp) -> bool {
53     const FileSpec &file_spec = module_sp->GetFileSpec();
54     if (!file_spec)
55       return true; // Keep iterating.
56 
57     const RegularExpression &runtime_regex = GetPatternForRuntimeLibrary();
58     if (runtime_regex.Execute(file_spec.GetFilename().GetCString()) ||
59         module_sp->IsExecutable()) {
60       if (CheckIfRuntimeIsValid(module_sp)) {
61         SetRuntimeModuleSP(module_sp);
62         Activate();
63         return false; // Stop iterating, we're done.
64       }
65     }
66 
67     return true;
68   });
69 }
70 
71 lldb::ThreadCollectionSP
72 InstrumentationRuntime::GetBacktracesFromExtendedStopInfo(
73     StructuredData::ObjectSP info) {
74   return ThreadCollectionSP(new ThreadCollection());
75 }
76