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1 /**
2  * Copyright (c) 2021-2024 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef PANDA_VERIFIER_DEBUG_CONTEXT_H_
17 #define PANDA_VERIFIER_DEBUG_CONTEXT_H_
18 
19 #include "verification/config/config.h"
20 #include "verification/config/debug_breakpoint/breakpoint.h"
21 #include "verification/public.h"
22 #include "verification/util/callable.h"
23 #include "verification/util/synchronized.h"
24 
25 #include "runtime/include/mem/panda_containers.h"
26 #include "runtime/include/mem/panda_string.h"
27 
28 #include <array>
29 #include <cstdint>
30 #include <unordered_map>
31 #include <unordered_set>
32 #include <vector>
33 
34 namespace ark::verifier::debug {
35 
36 enum class WhitelistKind : uint8_t { METHOD, METHOD_CALL, CLASS, LAST };
37 
38 struct DebugConfig {
39     // NOLINTBEGIN(misc-non-private-member-variables-in-classes)
40     PandaUnorderedMap<PandaString, ark::verifier::callable<bool(Config *cfg, const config::Section &)>> sectionHandlers;
41 
42 #ifndef NDEBUG
43     // note: this is assumed to be small so stored as a vector (not even sorted, so we use a linear search)
44     // if changed, a sorted vector or a PandaMap would likely be better than PandaUnorderedMap for faster comparison
45     PandaVector<std::pair<PandaString, Offsets>> managedBreakpoints;
46     void AddBreakpointConfig(const PandaString &methodName, Offset offset);
47 #else
AddBreakpointConfigDebugConfig48     void AddBreakpointConfig([[maybe_unused]] const PandaString &methodName, [[maybe_unused]] Offset offset) {}
49 #endif
50 
51     std::array<PandaVector<PandaString>, static_cast<size_t>(WhitelistKind::LAST)> whitelistNames;
52     bool whitelistNotEmpty = false;
53     // NOLINTEND(misc-non-private-member-variables-in-classes)
54 
55     void AddWhitelistMethodConfig(WhitelistKind kind, const PandaString &name);
56 };
57 
58 struct DebugContext {
59     // NOLINTBEGIN(misc-non-private-member-variables-in-classes)
60     DebugConfig const *config = nullptr;
61 
62 #ifndef NDEBUG
63     Synchronized<PandaUnorderedMap<Method::UniqId, PandaUnorderedSet<uint32_t>>> breakpoint;
64 #endif
65 
66     struct {
67         // similar to ManagedBreakpoints.Config
68         std::array<PandaVector<PandaString>, static_cast<size_t>(WhitelistKind::LAST)> names;
69         std::array<Synchronized<PandaUnorderedSet<Method::UniqId>>, static_cast<size_t>(WhitelistKind::LAST)> id;
70         bool isNotEmpty = false;
71     } whitelist;
72 
73     // NOLINTEND(misc-non-private-member-variables-in-classes)
74 
75 public:
SetConfigDebugContext76     void SetConfig(DebugConfig const *cfg)
77     {
78         config = cfg;
79     }
80 
81     void AddMethod(const Method &method, bool isDebug);
82 
SkipVerificationDebugContext83     bool SkipVerification(Method::UniqId id) const
84     {
85         return InWhitelist(WhitelistKind::METHOD, id) || InWhitelist(WhitelistKind::CLASS, id);
86     }
87 
SkipVerificationOfCallDebugContext88     bool SkipVerificationOfCall(Method::UniqId id) const
89     {
90         return InWhitelist(WhitelistKind::METHOD_CALL, id) || InWhitelist(WhitelistKind::CLASS, id);
91     }
92 
93 private:
94 #ifndef NDEBUG
95     void InsertBreakpoints(PandaString const &methodName, Method::UniqId id);
96 #else
97     void InsertBreakpoints([[maybe_unused]] PandaString const &methodName, [[maybe_unused]] Method::UniqId id) {}
98 #endif
99 
100     void InsertIntoWhitelist(const PandaString &name, bool isClassName, Method::UniqId id);
101     bool InWhitelist(WhitelistKind kind, uint64_t id) const;
102 };
103 }  // namespace ark::verifier::debug
104 
105 #endif  // !PANDA_VERIFIER_DEBUG_CONTEXT_H_
106