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Diffstat (limited to 'source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.cpp')
| -rw-r--r-- | source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.cpp | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.cpp b/source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.cpp deleted file mode 100644 index 6670f89dde5fa..0000000000000 --- a/source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.cpp +++ /dev/null @@ -1,215 +0,0 @@ -//===-- GoLanguageRuntime.cpp --------------------------------------*- C++ -//-*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// - -#include "GoLanguageRuntime.h" - -#include "lldb/Breakpoint/BreakpointLocation.h" -#include "lldb/Core/Module.h" -#include "lldb/Core/PluginManager.h" -#include "lldb/Core/Scalar.h" -#include "lldb/Core/ValueObject.h" -#include "lldb/Core/ValueObjectMemory.h" -#include "lldb/Symbol/GoASTContext.h" -#include "lldb/Symbol/Symbol.h" -#include "lldb/Symbol/SymbolFile.h" -#include "lldb/Symbol/TypeList.h" -#include "lldb/Target/Process.h" -#include "lldb/Target/RegisterContext.h" -#include "lldb/Target/SectionLoadList.h" -#include "lldb/Target/StopInfo.h" -#include "lldb/Target/Target.h" -#include "lldb/Target/Thread.h" -#include "lldb/Utility/ConstString.h" -#include "lldb/Utility/Log.h" -#include "lldb/Utility/Status.h" -#include "llvm/ADT/Twine.h" - -#include <vector> - -using namespace lldb; -using namespace lldb_private; - -namespace { -ValueObjectSP GetChild(ValueObject &obj, const char *name, - bool dereference = true) { - ConstString name_const_str(name); - ValueObjectSP result = obj.GetChildMemberWithName(name_const_str, true); - if (dereference && result && result->IsPointerType()) { - Status err; - result = result->Dereference(err); - if (err.Fail()) - result.reset(); - } - return result; -} - -ConstString ReadString(ValueObject &str, Process *process) { - ConstString result; - ValueObjectSP data = GetChild(str, "str", false); - ValueObjectSP len = GetChild(str, "len"); - if (len && data) { - Status err; - lldb::addr_t addr = data->GetPointerValue(); - if (addr == LLDB_INVALID_ADDRESS) - return result; - uint64_t byte_size = len->GetValueAsUnsigned(0); - char *buf = new char[byte_size + 1]; - buf[byte_size] = 0; - size_t bytes_read = process->ReadMemory(addr, buf, byte_size, err); - if (!(err.Fail() || bytes_read != byte_size)) - result = ConstString(buf, bytes_read); - delete[] buf; - } - return result; -} - -ConstString ReadTypeName(ValueObjectSP type, Process *process) { - if (ValueObjectSP uncommon = GetChild(*type, "x")) { - ValueObjectSP name = GetChild(*uncommon, "name"); - ValueObjectSP package = GetChild(*uncommon, "pkgpath"); - if (name && name->GetPointerValue() != 0 && package && - package->GetPointerValue() != 0) { - ConstString package_const_str = ReadString(*package, process); - ConstString name_const_str = ReadString(*name, process); - if (package_const_str.GetLength() == 0) - return name_const_str; - return ConstString((package_const_str.GetStringRef() + "." + - name_const_str.GetStringRef()) - .str()); - } - } - ValueObjectSP name = GetChild(*type, "_string"); - if (name) - return ReadString(*name, process); - return ConstString(""); -} - -CompilerType LookupRuntimeType(ValueObjectSP type, ExecutionContext *exe_ctx, - bool *is_direct) { - uint8_t kind = GetChild(*type, "kind")->GetValueAsUnsigned(0); - *is_direct = GoASTContext::IsDirectIface(kind); - if (GoASTContext::IsPointerKind(kind)) { - CompilerType type_ptr = type->GetCompilerType().GetPointerType(); - Status err; - ValueObjectSP elem = - type->CreateValueObjectFromAddress("elem", type->GetAddressOf() + - type->GetByteSize(), - *exe_ctx, type_ptr) - ->Dereference(err); - if (err.Fail()) - return CompilerType(); - bool tmp_direct; - return LookupRuntimeType(elem, exe_ctx, &tmp_direct).GetPointerType(); - } - Target *target = exe_ctx->GetTargetPtr(); - Process *process = exe_ctx->GetProcessPtr(); - - ConstString const_typename = ReadTypeName(type, process); - if (const_typename.GetLength() == 0) - return CompilerType(); - - SymbolContext sc; - TypeList type_list; - llvm::DenseSet<SymbolFile *> searched_symbol_files; - uint32_t num_matches = target->GetImages().FindTypes( - sc, const_typename, false, 2, searched_symbol_files, type_list); - if (num_matches > 0) { - return type_list.GetTypeAtIndex(0)->GetFullCompilerType(); - } - return CompilerType(); -} -} - -bool GoLanguageRuntime::CouldHaveDynamicValue(ValueObject &in_value) { - return GoASTContext::IsGoInterface(in_value.GetCompilerType()); -} - -bool GoLanguageRuntime::GetDynamicTypeAndAddress( - ValueObject &in_value, lldb::DynamicValueType use_dynamic, - TypeAndOrName &class_type_or_name, Address &dynamic_address, - Value::ValueType &value_type) { - value_type = Value::eValueTypeScalar; - class_type_or_name.Clear(); - if (CouldHaveDynamicValue(in_value)) { - Status err; - ValueObjectSP iface = in_value.GetStaticValue(); - ValueObjectSP data_sp = GetChild(*iface, "data", false); - if (!data_sp) - return false; - - if (ValueObjectSP tab = GetChild(*iface, "tab")) - iface = tab; - ValueObjectSP type = GetChild(*iface, "_type"); - if (!type) { - return false; - } - - bool direct; - ExecutionContext exe_ctx(in_value.GetExecutionContextRef()); - CompilerType final_type = LookupRuntimeType(type, &exe_ctx, &direct); - if (!final_type) - return false; - if (direct) { - class_type_or_name.SetCompilerType(final_type); - } else { - // TODO: implement reference types or fix caller to support dynamic types - // that aren't pointers - // so we don't have to introduce this extra pointer. - class_type_or_name.SetCompilerType(final_type.GetPointerType()); - } - - dynamic_address.SetLoadAddress(data_sp->GetPointerValue(), - exe_ctx.GetTargetPtr()); - - return true; - } - return false; -} - -TypeAndOrName -GoLanguageRuntime::FixUpDynamicType(const TypeAndOrName &type_and_or_name, - ValueObject &static_value) { - return type_and_or_name; -} - -//------------------------------------------------------------------ -// Static Functions -//------------------------------------------------------------------ -LanguageRuntime * -GoLanguageRuntime::CreateInstance(Process *process, - lldb::LanguageType language) { - if (language == eLanguageTypeGo) - return new GoLanguageRuntime(process); - else - return NULL; -} - -void GoLanguageRuntime::Initialize() { - PluginManager::RegisterPlugin(GetPluginNameStatic(), "Go Language Runtime", - CreateInstance); -} - -void GoLanguageRuntime::Terminate() { - PluginManager::UnregisterPlugin(CreateInstance); -} - -lldb_private::ConstString GoLanguageRuntime::GetPluginNameStatic() { - static ConstString g_name("golang"); - return g_name; -} - -//------------------------------------------------------------------ -// PluginInterface protocol -//------------------------------------------------------------------ -lldb_private::ConstString GoLanguageRuntime::GetPluginName() { - return GetPluginNameStatic(); -} - -uint32_t GoLanguageRuntime::GetPluginVersion() { return 1; } |