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1//===-- AppleObjCRuntimeV1.h ------------------------------------*- C++ -*-===//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-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLDB_SOURCE_PLUGINS_LANGUAGERUNTIME_OBJC_APPLEOBJCRUNTIME_APPLEOBJCRUNTIMEV1_H10#define LLDB_SOURCE_PLUGINS_LANGUAGERUNTIME_OBJC_APPLEOBJCRUNTIME_APPLEOBJCRUNTIMEV1_H11 12#include "AppleObjCRuntime.h"13#include "lldb/lldb-private.h"14 15#include "Plugins/LanguageRuntime/ObjC/ObjCLanguageRuntime.h"16 17namespace lldb_private {18 19class AppleObjCRuntimeV1 : public AppleObjCRuntime {20public:21 ~AppleObjCRuntimeV1() override = default;22 23 // Static Functions24 static void Initialize();25 26 static void Terminate();27 28 static lldb_private::LanguageRuntime *29 CreateInstance(Process *process, lldb::LanguageType language);30 31 static llvm::StringRef GetPluginNameStatic() { return "apple-objc-v1"; }32 33 static char ID;34 35 bool isA(const void *ClassID) const override {36 return ClassID == &ID || AppleObjCRuntime::isA(ClassID);37 }38 39 static bool classof(const LanguageRuntime *runtime) {40 return runtime->isA(&ID);41 }42 43 lldb::addr_t GetTaggedPointerObfuscator();44 45 class ClassDescriptorV1 : public ObjCLanguageRuntime::ClassDescriptor {46 public:47 ClassDescriptorV1(ValueObject &isa_pointer);48 ClassDescriptorV1(ObjCISA isa, lldb::ProcessSP process_sp);49 50 ~ClassDescriptorV1() override = default;51 52 ConstString GetClassName() override { return m_name; }53 54 ClassDescriptorSP GetSuperclass() override;55 56 ClassDescriptorSP GetMetaclass() const override;57 58 bool IsValid() override { return m_valid; }59 60 // v1 does not support tagged pointers61 bool GetTaggedPointerInfo(uint64_t *info_bits = nullptr,62 uint64_t *value_bits = nullptr,63 uint64_t *payload = nullptr) override {64 return false;65 }66 67 bool GetTaggedPointerInfoSigned(uint64_t *info_bits = nullptr,68 int64_t *value_bits = nullptr,69 uint64_t *payload = nullptr) override {70 return false;71 }72 73 uint64_t GetInstanceSize() override { return m_instance_size; }74 75 ObjCISA GetISA() override { return m_isa; }76 77 bool78 Describe(std::function<void(ObjCLanguageRuntime::ObjCISA)> const79 &superclass_func,80 std::function<bool(const char *, const char *)> const81 &instance_method_func,82 std::function<bool(const char *, const char *)> const83 &class_method_func,84 std::function<bool(const char *, const char *, lldb::addr_t,85 uint64_t)> const &ivar_func) const override;86 87 protected:88 void Initialize(ObjCISA isa, lldb::ProcessSP process_sp);89 90 private:91 ConstString m_name;92 ObjCISA m_isa;93 ObjCISA m_parent_isa;94 bool m_valid;95 lldb::ProcessWP m_process_wp;96 uint64_t m_instance_size;97 };98 99 // These are generic runtime functions:100 bool GetDynamicTypeAndAddress(ValueObject &in_value,101 lldb::DynamicValueType use_dynamic,102 TypeAndOrName &class_type_or_name,103 Address &address, Value::ValueType &value_type,104 llvm::ArrayRef<uint8_t> &local_buffer) override;105 106 llvm::Expected<std::unique_ptr<UtilityFunction>>107 CreateObjectChecker(std::string, ExecutionContext &exe_ctx) override;108 109 // PluginInterface protocol110 llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }111 112 ObjCRuntimeVersions GetRuntimeVersion() const override {113 return ObjCRuntimeVersions::eAppleObjC_V1;114 }115 116 void UpdateISAToDescriptorMapIfNeeded() override;117 118 DeclVendor *GetDeclVendor() override;119 120protected:121 lldb::BreakpointResolverSP122 CreateExceptionResolver(const lldb::BreakpointSP &bkpt,123 bool catch_bp, bool throw_bp) override;124 125 class HashTableSignature {126 public:127 HashTableSignature() = default;128 129 bool NeedsUpdate(uint32_t count, uint32_t num_buckets,130 lldb::addr_t buckets_ptr) {131 return m_count != count || m_num_buckets != num_buckets ||132 m_buckets_ptr != buckets_ptr;133 }134 135 void UpdateSignature(uint32_t count, uint32_t num_buckets,136 lldb::addr_t buckets_ptr) {137 m_count = count;138 m_num_buckets = num_buckets;139 m_buckets_ptr = buckets_ptr;140 }141 142 protected:143 uint32_t m_count = 0;144 uint32_t m_num_buckets = 0;145 lldb::addr_t m_buckets_ptr = LLDB_INVALID_ADDRESS;146 };147 148 lldb::addr_t GetISAHashTablePointer();149 150 HashTableSignature m_hash_signature;151 lldb::addr_t m_isa_hash_table_ptr;152 std::unique_ptr<DeclVendor> m_decl_vendor_up;153 154private:155 AppleObjCRuntimeV1(Process *process);156};157 158} // namespace lldb_private159 160#endif // LLDB_SOURCE_PLUGINS_LANGUAGERUNTIME_OBJC_APPLEOBJCRUNTIME_APPLEOBJCRUNTIMEV1_H161