forked from OSchip/llvm-project
106 lines
3.3 KiB
C++
106 lines
3.3 KiB
C++
//===-- UtilityFunction.cpp -----------------------------------------------===//
|
|
//
|
|
// 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 <cstdio>
|
|
#include <sys/types.h>
|
|
|
|
#include "lldb/Core/Module.h"
|
|
#include "lldb/Core/StreamFile.h"
|
|
#include "lldb/Expression/DiagnosticManager.h"
|
|
#include "lldb/Expression/FunctionCaller.h"
|
|
#include "lldb/Expression/IRExecutionUnit.h"
|
|
#include "lldb/Expression/UtilityFunction.h"
|
|
#include "lldb/Host/Host.h"
|
|
#include "lldb/Target/ExecutionContext.h"
|
|
#include "lldb/Target/Process.h"
|
|
#include "lldb/Target/Target.h"
|
|
#include "lldb/Utility/ConstString.h"
|
|
#include "lldb/Utility/Log.h"
|
|
#include "lldb/Utility/Stream.h"
|
|
|
|
using namespace lldb_private;
|
|
using namespace lldb;
|
|
|
|
char UtilityFunction::ID;
|
|
|
|
/// Constructor
|
|
///
|
|
/// \param[in] text
|
|
/// The text of the function. Must be a full translation unit.
|
|
///
|
|
/// \param[in] name
|
|
/// The name of the function, as used in the text.
|
|
UtilityFunction::UtilityFunction(ExecutionContextScope &exe_scope,
|
|
std::string text, std::string name,
|
|
bool enable_debugging)
|
|
: Expression(exe_scope), m_execution_unit_sp(), m_jit_module_wp(),
|
|
m_function_text(std::move(text)), m_function_name(std::move(name)) {}
|
|
|
|
UtilityFunction::~UtilityFunction() {
|
|
lldb::ProcessSP process_sp(m_jit_process_wp.lock());
|
|
if (process_sp) {
|
|
lldb::ModuleSP jit_module_sp(m_jit_module_wp.lock());
|
|
if (jit_module_sp)
|
|
process_sp->GetTarget().GetImages().Remove(jit_module_sp);
|
|
}
|
|
}
|
|
|
|
// FIXME: We should check that every time this is called it is called with the
|
|
// same return type & arguments...
|
|
|
|
FunctionCaller *UtilityFunction::MakeFunctionCaller(
|
|
const CompilerType &return_type, const ValueList &arg_value_list,
|
|
lldb::ThreadSP thread_to_use_sp, Status &error) {
|
|
if (m_caller_up)
|
|
return m_caller_up.get();
|
|
|
|
ProcessSP process_sp = m_jit_process_wp.lock();
|
|
if (!process_sp) {
|
|
error.SetErrorString("Can't make a function caller without a process.");
|
|
return nullptr;
|
|
}
|
|
|
|
Address impl_code_address;
|
|
impl_code_address.SetOffset(StartAddress());
|
|
std::string name(m_function_name);
|
|
name.append("-caller");
|
|
|
|
m_caller_up.reset(process_sp->GetTarget().GetFunctionCallerForLanguage(
|
|
Language(), return_type, impl_code_address, arg_value_list, name.c_str(),
|
|
error));
|
|
if (error.Fail()) {
|
|
|
|
return nullptr;
|
|
}
|
|
if (m_caller_up) {
|
|
DiagnosticManager diagnostics;
|
|
|
|
unsigned num_errors =
|
|
m_caller_up->CompileFunction(thread_to_use_sp, diagnostics);
|
|
if (num_errors) {
|
|
error.SetErrorStringWithFormat(
|
|
"Error compiling %s caller function: \"%s\".",
|
|
m_function_name.c_str(), diagnostics.GetString().c_str());
|
|
m_caller_up.reset();
|
|
return nullptr;
|
|
}
|
|
|
|
diagnostics.Clear();
|
|
ExecutionContext exe_ctx(process_sp);
|
|
|
|
if (!m_caller_up->WriteFunctionWrapper(exe_ctx, diagnostics)) {
|
|
error.SetErrorStringWithFormat(
|
|
"Error inserting caller function for %s: \"%s\".",
|
|
m_function_name.c_str(), diagnostics.GetString().c_str());
|
|
m_caller_up.reset();
|
|
return nullptr;
|
|
}
|
|
}
|
|
return m_caller_up.get();
|
|
}
|