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//===-- AppleObjCRuntimeV1.h ------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_AppleObjCRuntimeV1_h_
#define liblldb_AppleObjCRuntimeV1_h_
#include "AppleObjCRuntime.h"
#include "lldb/Target/ObjCLanguageRuntime.h"
#include "lldb/lldb-private.h"
namespace lldb_private {
class AppleObjCRuntimeV1 : public AppleObjCRuntime {
public:
~AppleObjCRuntimeV1() override = default;
// Static Functions
static void Initialize();
static void Terminate();
static lldb_private::LanguageRuntime *
CreateInstance(Process *process, lldb::LanguageType language);
static lldb_private::ConstString GetPluginNameStatic();
static bool classof(const ObjCLanguageRuntime *runtime) {
switch (runtime->GetRuntimeVersion()) {
case ObjCRuntimeVersions::eAppleObjC_V1:
return true;
default:
return false;
}
}
lldb::addr_t GetTaggedPointerObfuscator();
class ClassDescriptorV1 : public ObjCLanguageRuntime::ClassDescriptor {
public:
ClassDescriptorV1(ValueObject &isa_pointer);
ClassDescriptorV1(ObjCISA isa, lldb::ProcessSP process_sp);
~ClassDescriptorV1() override = default;
ConstString GetClassName() override { return m_name; }
ClassDescriptorSP GetSuperclass() override;
ClassDescriptorSP GetMetaclass() const override;
bool IsValid() override { return m_valid; }
// v1 does not support tagged pointers
bool GetTaggedPointerInfo(uint64_t *info_bits = nullptr,
uint64_t *value_bits = nullptr,
uint64_t *payload = nullptr) override {
return false;
}
uint64_t GetInstanceSize() override { return m_instance_size; }
ObjCISA GetISA() override { return m_isa; }
bool
Describe(std::function<void(ObjCLanguageRuntime::ObjCISA)> const
&superclass_func,
std::function<bool(const char *, const char *)> const
&instance_method_func,
std::function<bool(const char *, const char *)> const
&class_method_func,
std::function<bool(const char *, const char *, lldb::addr_t,
uint64_t)> const &ivar_func) const override;
protected:
void Initialize(ObjCISA isa, lldb::ProcessSP process_sp);
private:
ConstString m_name;
ObjCISA m_isa;
ObjCISA m_parent_isa;
bool m_valid;
lldb::ProcessWP m_process_wp;
uint64_t m_instance_size;
};
// These are generic runtime functions:
bool GetDynamicTypeAndAddress(ValueObject &in_value,
lldb::DynamicValueType use_dynamic,
TypeAndOrName &class_type_or_name,
Address &address,
Value::ValueType &value_type) override;
UtilityFunction *CreateObjectChecker(const char *) override;
// PluginInterface protocol
ConstString GetPluginName() override;
uint32_t GetPluginVersion() override;
ObjCRuntimeVersions GetRuntimeVersion() const override {
return ObjCRuntimeVersions::eAppleObjC_V1;
}
void UpdateISAToDescriptorMapIfNeeded() override;
DeclVendor *GetDeclVendor() override;
protected:
lldb::BreakpointResolverSP CreateExceptionResolver(Breakpoint *bkpt,
bool catch_bp,
bool throw_bp) override;
class HashTableSignature {
public:
HashTableSignature()
: m_count(0), m_num_buckets(0), m_buckets_ptr(LLDB_INVALID_ADDRESS) {}
bool NeedsUpdate(uint32_t count, uint32_t num_buckets,
lldb::addr_t buckets_ptr) {
return m_count != count || m_num_buckets != num_buckets ||
m_buckets_ptr != buckets_ptr;
}
void UpdateSignature(uint32_t count, uint32_t num_buckets,
lldb::addr_t buckets_ptr) {
m_count = count;
m_num_buckets = num_buckets;
m_buckets_ptr = buckets_ptr;
}
protected:
uint32_t m_count;
uint32_t m_num_buckets;
lldb::addr_t m_buckets_ptr;
};
lldb::addr_t GetISAHashTablePointer();
HashTableSignature m_hash_signature;
lldb::addr_t m_isa_hash_table_ptr;
std::unique_ptr<DeclVendor> m_decl_vendor_up;
private:
AppleObjCRuntimeV1(Process *process);
};
} // namespace lldb_private
#endif // liblldb_AppleObjCRuntimeV1_h_
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