116 lines
3.6 KiB
C++
116 lines
3.6 KiB
C++
//===-- UtilityFunction.cpp -------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// C Includes
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#include <stdio.h>
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#if HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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// C++ Includes
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#include "lldb/Core/Module.h"
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#include "lldb/Core/StreamFile.h"
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#include "lldb/Expression/DiagnosticManager.h"
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#include "lldb/Expression/ExpressionSourceCode.h"
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#include "lldb/Expression/FunctionCaller.h"
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#include "lldb/Expression/IRExecutionUnit.h"
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#include "lldb/Expression/UtilityFunction.h"
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#include "lldb/Host/Host.h"
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#include "lldb/Target/ExecutionContext.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Utility/ConstString.h"
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#include "lldb/Utility/Log.h"
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#include "lldb/Utility/Stream.h"
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using namespace lldb_private;
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using namespace lldb;
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//------------------------------------------------------------------
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/// Constructor
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///
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/// @param[in] text
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/// The text of the function. Must be a full translation unit.
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///
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/// @param[in] name
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/// The name of the function, as used in the text.
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//------------------------------------------------------------------
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UtilityFunction::UtilityFunction(ExecutionContextScope &exe_scope,
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const char *text, const char *name)
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: Expression(exe_scope), m_execution_unit_sp(), m_jit_module_wp(),
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m_function_text(ExpressionSourceCode::g_expression_prefix),
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m_function_name(name) {
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if (text && text[0])
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m_function_text.append(text);
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}
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UtilityFunction::~UtilityFunction() {
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lldb::ProcessSP process_sp(m_jit_process_wp.lock());
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if (process_sp) {
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lldb::ModuleSP jit_module_sp(m_jit_module_wp.lock());
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if (jit_module_sp)
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process_sp->GetTarget().GetImages().Remove(jit_module_sp);
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}
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}
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// FIXME: We should check that every time this is called it is called with the
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// same return type & arguments...
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FunctionCaller *UtilityFunction::MakeFunctionCaller(
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const CompilerType &return_type, const ValueList &arg_value_list,
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lldb::ThreadSP thread_to_use_sp, Status &error) {
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if (m_caller_up)
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return m_caller_up.get();
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ProcessSP process_sp = m_jit_process_wp.lock();
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if (!process_sp) {
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error.SetErrorString("Can't make a function caller without a process.");
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return nullptr;
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}
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Address impl_code_address;
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impl_code_address.SetOffset(StartAddress());
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std::string name(m_function_name);
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name.append("-caller");
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m_caller_up.reset(process_sp->GetTarget().GetFunctionCallerForLanguage(
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Language(), return_type, impl_code_address, arg_value_list, name.c_str(),
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error));
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if (error.Fail()) {
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return nullptr;
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}
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if (m_caller_up) {
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DiagnosticManager diagnostics;
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unsigned num_errors =
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m_caller_up->CompileFunction(thread_to_use_sp, diagnostics);
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if (num_errors) {
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error.SetErrorStringWithFormat(
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"Error compiling %s caller function: \"%s\".",
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m_function_name.c_str(), diagnostics.GetString().c_str());
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m_caller_up.reset();
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return nullptr;
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}
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diagnostics.Clear();
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ExecutionContext exe_ctx(process_sp);
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if (!m_caller_up->WriteFunctionWrapper(exe_ctx, diagnostics)) {
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error.SetErrorStringWithFormat(
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"Error inserting caller function for %s: \"%s\".",
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m_function_name.c_str(), diagnostics.GetString().c_str());
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m_caller_up.reset();
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return nullptr;
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}
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}
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return m_caller_up.get();
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}
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