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//===-- BreakpointResolverScripted.cpp ---------------------------*- 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
//
//===----------------------------------------------------------------------===//
#include "lldb/Breakpoint/BreakpointResolverScripted.h"
#include "lldb/Breakpoint/BreakpointLocation.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/Section.h"
#include "lldb/Core/StructuredDataImpl.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/ScriptInterpreter.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Target.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/StreamString.h"
using namespace lldb;
using namespace lldb_private;
// BreakpointResolverScripted:
BreakpointResolverScripted::BreakpointResolverScripted(
Breakpoint *bkpt,
const llvm::StringRef class_name,
lldb::SearchDepth depth,
StructuredDataImpl *args_data,
ScriptInterpreter &script_interp)
: BreakpointResolver(bkpt, BreakpointResolver::PythonResolver),
m_class_name(class_name), m_depth(depth), m_args_ptr(args_data) {
CreateImplementationIfNeeded();
}
void BreakpointResolverScripted::CreateImplementationIfNeeded() {
if (m_implementation_sp)
return;
if (m_class_name.empty())
return;
if (m_breakpoint) {
TargetSP target_sp = m_breakpoint->GetTargetSP();
ScriptInterpreter *script_interp = target_sp->GetDebugger()
.GetScriptInterpreter();
if (!script_interp)
return;
lldb::BreakpointSP bkpt_sp(m_breakpoint->shared_from_this());
m_implementation_sp = script_interp->CreateScriptedBreakpointResolver(
m_class_name.c_str(), m_args_ptr, bkpt_sp);
}
}
void BreakpointResolverScripted::NotifyBreakpointSet() {
CreateImplementationIfNeeded();
}
BreakpointResolverScripted::~BreakpointResolverScripted() {}
BreakpointResolver *
BreakpointResolverScripted::CreateFromStructuredData(
Breakpoint *bkpt, const StructuredData::Dictionary &options_dict,
Status &error) {
llvm::StringRef class_name;
bool success;
if (!bkpt)
return nullptr;
success = options_dict.GetValueForKeyAsString(
GetKey(OptionNames::PythonClassName), class_name);
if (!success) {
error.SetErrorString("BRFL::CFSD: Couldn't find class name entry.");
return nullptr;
}
lldb::SearchDepth depth;
int depth_as_int;
success = options_dict.GetValueForKeyAsInteger(
GetKey(OptionNames::SearchDepth), depth_as_int);
if (!success) {
error.SetErrorString("BRFL::CFSD: Couldn't find class name entry.");
return nullptr;
}
if (depth_as_int >= (int) OptionNames::LastOptionName) {
error.SetErrorString("BRFL::CFSD: Invalid value for search depth.");
return nullptr;
}
depth = (lldb::SearchDepth) depth_as_int;
StructuredDataImpl *args_data_impl = new StructuredDataImpl();
StructuredData::Dictionary *args_dict = nullptr;
success = options_dict.GetValueForKeyAsDictionary(
GetKey(OptionNames::ScriptArgs), args_dict);
if (success) {
// FIXME: The resolver needs a copy of the ARGS dict that it can own,
// so I need to make a copy constructor for the Dictionary so I can pass
// that to it here. For now the args are empty.
//StructuredData::Dictionary *dict_copy = new StructuredData::Dictionary(args_dict);
}
ScriptInterpreter *script_interp = bkpt->GetTarget()
.GetDebugger()
.GetScriptInterpreter();
return new BreakpointResolverScripted(bkpt, class_name, depth, args_data_impl,
*script_interp);
}
StructuredData::ObjectSP
BreakpointResolverScripted::SerializeToStructuredData() {
StructuredData::DictionarySP options_dict_sp(
new StructuredData::Dictionary());
options_dict_sp->AddStringItem(GetKey(OptionNames::PythonClassName),
m_class_name);
return WrapOptionsDict(options_dict_sp);
}
ScriptInterpreter *BreakpointResolverScripted::GetScriptInterpreter() {
return m_breakpoint->GetTarget().GetDebugger().GetScriptInterpreter();
}
Searcher::CallbackReturn BreakpointResolverScripted::SearchCallback(
SearchFilter &filter, SymbolContext &context, Address *addr) {
assert(m_breakpoint != nullptr);
bool should_continue = true;
if (!m_implementation_sp)
return Searcher::eCallbackReturnStop;
ScriptInterpreter *interp = GetScriptInterpreter();
should_continue = interp->ScriptedBreakpointResolverSearchCallback(
m_implementation_sp,
&context);
if (should_continue)
return Searcher::eCallbackReturnContinue;
else
return Searcher::eCallbackReturnStop;
}
lldb::SearchDepth
BreakpointResolverScripted::GetDepth() {
assert(m_breakpoint != nullptr);
lldb::SearchDepth depth = lldb::eSearchDepthModule;
if (m_implementation_sp) {
ScriptInterpreter *interp = GetScriptInterpreter();
depth = interp->ScriptedBreakpointResolverSearchDepth(
m_implementation_sp);
}
return depth;
}
void BreakpointResolverScripted::GetDescription(Stream *s) {
StructuredData::GenericSP generic_sp;
std::string short_help;
if (m_implementation_sp) {
ScriptInterpreter *interp = GetScriptInterpreter();
interp->GetShortHelpForCommandObject(m_implementation_sp,
short_help);
}
if (!short_help.empty())
s->PutCString(short_help.c_str());
else
s->Printf("python class = %s", m_class_name.c_str());
}
void BreakpointResolverScripted::Dump(Stream *s) const {}
lldb::BreakpointResolverSP
BreakpointResolverScripted::CopyForBreakpoint(Breakpoint &breakpoint) {
ScriptInterpreter *script_interp = GetScriptInterpreter();
// FIXME: Have to make a copy of the arguments from the m_args_ptr and then
// pass that to the new resolver.
lldb::BreakpointResolverSP ret_sp(
new BreakpointResolverScripted(&breakpoint, m_class_name,
m_depth, nullptr, *script_interp));
return ret_sp;
}
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