1 //===-- UtilityFunction.cpp -------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
13 #include <sys/types.h>
18 #include "lldb/Core/ConstString.h"
19 #include "lldb/Core/Log.h"
20 #include "lldb/Core/Module.h"
21 #include "lldb/Core/Stream.h"
22 #include "lldb/Core/StreamFile.h"
23 #include "lldb/Expression/DiagnosticManager.h"
24 #include "lldb/Expression/ExpressionSourceCode.h"
25 #include "lldb/Expression/FunctionCaller.h"
26 #include "lldb/Expression/IRExecutionUnit.h"
27 #include "lldb/Expression/UtilityFunction.h"
28 #include "lldb/Host/Host.h"
29 #include "lldb/Target/ExecutionContext.h"
30 #include "lldb/Target/Process.h"
31 #include "lldb/Target/Target.h"
33 using namespace lldb_private;
36 //------------------------------------------------------------------
40 /// The text of the function. Must be a full translation unit.
43 /// The name of the function, as used in the text.
44 //------------------------------------------------------------------
45 UtilityFunction::UtilityFunction(ExecutionContextScope &exe_scope,
46 const char *text, const char *name)
47 : Expression(exe_scope), m_execution_unit_sp(), m_jit_module_wp(),
48 m_function_text(ExpressionSourceCode::g_expression_prefix),
49 m_function_name(name) {
51 m_function_text.append(text);
54 UtilityFunction::~UtilityFunction() {
55 lldb::ProcessSP process_sp(m_jit_process_wp.lock());
57 lldb::ModuleSP jit_module_sp(m_jit_module_wp.lock());
59 process_sp->GetTarget().GetImages().Remove(jit_module_sp);
63 // FIXME: We should check that every time this is called it is called with the
64 // same return type & arguments...
66 FunctionCaller *UtilityFunction::MakeFunctionCaller(
67 const CompilerType &return_type, const ValueList &arg_value_list,
68 lldb::ThreadSP thread_to_use_sp, Error &error) {
70 return m_caller_up.get();
72 ProcessSP process_sp = m_jit_process_wp.lock();
74 error.SetErrorString("Can't make a function caller without a process.");
78 Address impl_code_address;
79 impl_code_address.SetOffset(StartAddress());
80 std::string name(m_function_name);
81 name.append("-caller");
83 m_caller_up.reset(process_sp->GetTarget().GetFunctionCallerForLanguage(
84 Language(), return_type, impl_code_address, arg_value_list, name.c_str(),
91 DiagnosticManager diagnostics;
94 m_caller_up->CompileFunction(thread_to_use_sp, diagnostics);
96 error.SetErrorStringWithFormat(
97 "Error compiling %s caller function: \"%s\".",
98 m_function_name.c_str(), diagnostics.GetString().c_str());
104 ExecutionContext exe_ctx(process_sp);
106 if (!m_caller_up->WriteFunctionWrapper(exe_ctx, diagnostics)) {
107 error.SetErrorStringWithFormat(
108 "Error inserting caller function for %s: \"%s\".",
109 m_function_name.c_str(), diagnostics.GetString().c_str());
114 return m_caller_up.get();