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Differential D43886 Diff 173603 source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV2.cpp

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source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV2.cpp

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#include "lldb/Symbol/CompilerType.h" #include "lldb/Symbol/CompilerType.h"
#include "lldb/lldb-enumerations.h" #include "lldb/lldb-enumerations.h"
#include "lldb/Core/ClangForward.h" #include "lldb/Core/ClangForward.h"
#include "lldb/Core/Debugger.h" #include "lldb/Core/Debugger.h"
#include "lldb/Core/Module.h" #include "lldb/Core/Module.h"
#include "lldb/Core/PluginManager.h" #include "lldb/Core/PluginManager.h"
#include "lldb/Core/Section.h" #include "lldb/Core/Section.h"
#include "lldb/Core/ValueObjectConstResult.h"
#include "lldb/Core/ValueObjectVariable.h" #include "lldb/Core/ValueObjectVariable.h"
#include "lldb/Expression/DiagnosticManager.h" #include "lldb/Expression/DiagnosticManager.h"
#include "lldb/Expression/FunctionCaller.h" #include "lldb/Expression/FunctionCaller.h"
#include "lldb/Expression/UtilityFunction.h" #include "lldb/Expression/UtilityFunction.h"
#include "lldb/Interpreter/CommandObject.h" #include "lldb/Interpreter/CommandObject.h"
#include "lldb/Interpreter/CommandObjectMultiword.h" #include "lldb/Interpreter/CommandObjectMultiword.h"
#include "lldb/Interpreter/CommandReturnObject.h" #include "lldb/Interpreter/CommandReturnObject.h"
#include "lldb/Interpreter/OptionArgParser.h" #include "lldb/Interpreter/OptionArgParser.h"
#include "lldb/Interpreter/OptionValueBoolean.h" #include "lldb/Interpreter/OptionValueBoolean.h"
#include "lldb/Symbol/ClangASTContext.h" #include "lldb/Symbol/ClangASTContext.h"
#include "lldb/Symbol/ObjectFile.h" #include "lldb/Symbol/ObjectFile.h"
#include "lldb/Symbol/Symbol.h" #include "lldb/Symbol/Symbol.h"
#include "lldb/Symbol/TypeList.h" #include "lldb/Symbol/TypeList.h"
#include "lldb/Symbol/VariableList.h" #include "lldb/Symbol/VariableList.h"
#include "lldb/Target/ABI.h"
#include "lldb/Target/ExecutionContext.h" #include "lldb/Target/ExecutionContext.h"
#include "lldb/Target/Platform.h" #include "lldb/Target/Platform.h"
#include "lldb/Target/Process.h" #include "lldb/Target/Process.h"
#include "lldb/Target/RegisterContext.h" #include "lldb/Target/RegisterContext.h"
#include "lldb/Target/StackFrameRecognizer.h"
#include "lldb/Target/Target.h" #include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h" #include "lldb/Target/Thread.h"
#include "lldb/Utility/ConstString.h" #include "lldb/Utility/ConstString.h"
#include "lldb/Utility/Log.h" #include "lldb/Utility/Log.h"
#include "lldb/Utility/Scalar.h" #include "lldb/Utility/Scalar.h"
#include "lldb/Utility/Status.h" #include "lldb/Utility/Status.h"
#include "lldb/Utility/Stream.h" #include "lldb/Utility/Stream.h"
#include "lldb/Utility/StreamString.h" #include "lldb/Utility/StreamString.h"
▲ Show 20 Lines • Show All 314 Lines • ▼ Show 20 Lines if (symbol_load_addr != LLDB_INVALID_ADDRESS) {
return default_value; return default_value;
} }
} else { } else {
error.SetErrorString("no symbol"); error.SetErrorString("no symbol");
return default_value; return default_value;
} }
} }
static void RegisterObjCExceptionRecognizer();
AppleObjCRuntimeV2::AppleObjCRuntimeV2(Process *process, AppleObjCRuntimeV2::AppleObjCRuntimeV2(Process *process,
const ModuleSP &objc_module_sp) const ModuleSP &objc_module_sp)
: AppleObjCRuntime(process), m_get_class_info_code(), : AppleObjCRuntime(process), m_get_class_info_code(),
m_get_class_info_args(LLDB_INVALID_ADDRESS), m_get_class_info_args(LLDB_INVALID_ADDRESS),
m_get_class_info_args_mutex(), m_get_shared_cache_class_info_code(), m_get_class_info_args_mutex(), m_get_shared_cache_class_info_code(),
m_get_shared_cache_class_info_args(LLDB_INVALID_ADDRESS), m_get_shared_cache_class_info_args(LLDB_INVALID_ADDRESS),
m_get_shared_cache_class_info_args_mutex(), m_decl_vendor_ap(), m_get_shared_cache_class_info_args_mutex(), m_decl_vendor_ap(),
m_tagged_pointer_obfuscator(LLDB_INVALID_ADDRESS), m_tagged_pointer_obfuscator(LLDB_INVALID_ADDRESS),
m_isa_hash_table_ptr(LLDB_INVALID_ADDRESS), m_isa_hash_table_ptr(LLDB_INVALID_ADDRESS),
m_hash_signature(), m_hash_signature(),
m_has_object_getClass(false), m_loaded_objc_opt(false), m_has_object_getClass(false), m_loaded_objc_opt(false),
m_non_pointer_isa_cache_ap( m_non_pointer_isa_cache_ap(
NonPointerISACache::CreateInstance(*this, objc_module_sp)), NonPointerISACache::CreateInstance(*this, objc_module_sp)),
m_tagged_pointer_vendor_ap( m_tagged_pointer_vendor_ap(
TaggedPointerVendorV2::CreateInstance(*this, objc_module_sp)), TaggedPointerVendorV2::CreateInstance(*this, objc_module_sp)),
m_encoding_to_type_sp(), m_noclasses_warning_emitted(false), m_encoding_to_type_sp(), m_noclasses_warning_emitted(false),
m_CFBoolean_values() { m_CFBoolean_values() {
static const ConstString g_gdb_object_getClass("gdb_object_getClass"); static const ConstString g_gdb_object_getClass("gdb_object_getClass");
m_has_object_getClass = (objc_module_sp->FindFirstSymbolWithNameAndType( m_has_object_getClass = (objc_module_sp->FindFirstSymbolWithNameAndType(
g_gdb_object_getClass, eSymbolTypeCode) != NULL); g_gdb_object_getClass, eSymbolTypeCode) != NULL);
RegisterObjCExceptionRecognizer();
} }
bool AppleObjCRuntimeV2::GetDynamicTypeAndAddress( bool AppleObjCRuntimeV2::GetDynamicTypeAndAddress(
ValueObject &in_value, lldb::DynamicValueType use_dynamic, ValueObject &in_value, lldb::DynamicValueType use_dynamic,
TypeAndOrName &class_type_or_name, Address &address, TypeAndOrName &class_type_or_name, Address &address,
Value::ValueType &value_type) { Value::ValueType &value_type) {
// We should never get here with a null process... // We should never get here with a null process...
assert(m_process != NULL); assert(m_process != NULL);
▲ Show 20 Lines • Show All 2,183 Lines • ▼ Show 20 Lines
void AppleObjCRuntimeV2::GetValuesForGlobalCFBooleans(lldb::addr_t &cf_true, void AppleObjCRuntimeV2::GetValuesForGlobalCFBooleans(lldb::addr_t &cf_true,
lldb::addr_t &cf_false) { lldb::addr_t &cf_false) {
if (GetCFBooleanValuesIfNeeded()) { if (GetCFBooleanValuesIfNeeded()) {
cf_true = m_CFBoolean_values->second; cf_true = m_CFBoolean_values->second;
cf_false = m_CFBoolean_values->first; cf_false = m_CFBoolean_values->first;
} else } else
this->AppleObjCRuntime::GetValuesForGlobalCFBooleans(cf_true, cf_false); this->AppleObjCRuntime::GetValuesForGlobalCFBooleans(cf_true, cf_false);
} }
#pragma mark Frame recognizers
class ObjCExceptionRecognizedStackFrame : public RecognizedStackFrame {
public:
ObjCExceptionRecognizedStackFrame(StackFrameSP frame_sp) {
ThreadSP thread_sp = frame_sp->GetThread();
ProcessSP process_sp = thread_sp->GetProcess();
const lldb::ABISP &abi = process_sp->GetABI();
if (!abi) return;
CompilerType voidstar = process_sp->GetTarget()
.GetScratchClangASTContext()
->GetBasicType(lldb::eBasicTypeVoid)
.GetPointerType();
ValueList args;
Value input_value;
input_value.SetCompilerType(voidstar);
args.PushValue(input_value);
if (!abi->GetArgumentValues(*thread_sp, args)) return;
addr_t exception_addr = args.GetValueAtIndex(0)->GetScalar().ULongLong();
Value value(exception_addr);
value.SetCompilerType(voidstar);
exception = ValueObjectConstResult::Create(frame_sp.get(), value,
ConstString("exception"));
exception = exception->GetDynamicValue(eDynamicDontRunTarget);
}
ValueObjectSP exception;
lldb::ValueObjectSP GetExceptionObject() override { return exception; }
};
class ObjCExceptionThrowFrameRecognizer : public StackFrameRecognizer {
lldb::RecognizedStackFrameSP RecognizeFrame(lldb::StackFrameSP frame) {
return lldb::RecognizedStackFrameSP(
new ObjCExceptionRecognizedStackFrame(frame));
};
};
static void RegisterObjCExceptionRecognizer() {
static llvm::once_flag g_once_flag;
llvm::call_once(g_once_flag, []() {
StackFrameRecognizerManager::AddRecognizer(
StackFrameRecognizerSP(new ObjCExceptionThrowFrameRecognizer()),
ConstString("libobjc.A.dylib"), ConstString("objc_exception_throw"),
/*first_instruction_only*/ true);
});
}