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authorDimitry Andric <dim@FreeBSD.org>2017-01-02 19:26:05 +0000
committerDimitry Andric <dim@FreeBSD.org>2017-01-02 19:26:05 +0000
commit14f1b3e8826ce43b978db93a62d1166055db5394 (patch)
tree0a00ad8d3498783fe0193f3b656bca17c4c8697d /source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.cpp
parent4ee8c119c71a06dcad1e0fecc8c675e480e59337 (diff)
downloadsrc-14f1b3e8826ce43b978db93a62d1166055db5394.tar.gz
src-14f1b3e8826ce43b978db93a62d1166055db5394.zip
Vendor import of lldb trunk r290819:vendor/lldb/lldb-trunk-r290819
Notes
Notes: svn path=/vendor/lldb/dist/; revision=311128 svn path=/vendor/lldb/lldb-trunk-r290819/; revision=311129; tag=vendor/lldb/lldb-trunk-r290819
Diffstat (limited to 'source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.cpp')
-rw-r--r--source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.cpp310
1 files changed, 142 insertions, 168 deletions
diff --git a/source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.cpp b/source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.cpp
index c752971e7a09..1450835298e6 100644
--- a/source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.cpp
+++ b/source/Plugins/LanguageRuntime/Go/GoLanguageRuntime.cpp
@@ -1,4 +1,5 @@
-//===-- GoLanguageRuntime.cpp --------------------------------------*- C++ -*-===//
+//===-- GoLanguageRuntime.cpp --------------------------------------*- C++
+//-*-===//
//
// The LLVM Compiler Infrastructure
//
@@ -36,206 +37,179 @@ 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()) {
- Error err;
- result = result->Dereference(err);
- if (err.Fail())
- result.reset();
- }
- return result;
+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()) {
+ Error 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)
- {
- Error 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 ReadString(ValueObject &str, Process *process) {
+ ConstString result;
+ ValueObjectSP data = GetChild(str, "str", false);
+ ValueObjectSP len = GetChild(str, "len");
+ if (len && data) {
+ Error 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());
- }
+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("");
+ }
+ 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();
- Error 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();
- }
+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();
+ Error 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::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))
- {
- Error 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;
+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)) {
+ Error 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;
}
- 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;
+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;
+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::Initialize() {
+ PluginManager::RegisterPlugin(GetPluginNameStatic(), "Go Language Runtime",
+ CreateInstance);
}
-void
-GoLanguageRuntime::Terminate()
-{
- PluginManager::UnregisterPlugin (CreateInstance);
+void GoLanguageRuntime::Terminate() {
+ PluginManager::UnregisterPlugin(CreateInstance);
}
-lldb_private::ConstString
-GoLanguageRuntime::GetPluginNameStatic()
-{
- static ConstString g_name("golang");
- return g_name;
+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;
+lldb_private::ConstString GoLanguageRuntime::GetPluginName() {
+ return GetPluginNameStatic();
}
+uint32_t GoLanguageRuntime::GetPluginVersion() { return 1; }