125 lines
4.1 KiB
C++
125 lines
4.1 KiB
C++
//===-- ClangUserExpression.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/ConstString.h"
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#include "lldb/Core/Log.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Core/Stream.h"
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#include "lldb/Core/StreamFile.h"
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#include "lldb/Expression/FunctionCaller.h"
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#include "lldb/Expression/UtilityFunction.h"
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#include "lldb/Expression/ExpressionSourceCode.h"
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#include "lldb/Expression/IRExecutionUnit.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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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,
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const char *name) :
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Expression (exe_scope),
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m_execution_unit_sp (),
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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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{
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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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{
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lldb::ProcessSP process_sp (m_jit_process_wp.lock());
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if (process_sp)
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{
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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 same return type & arguments...
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FunctionCaller *
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UtilityFunction::MakeFunctionCaller (const CompilerType &return_type, const ValueList &arg_value_list, Error &error)
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{
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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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return nullptr;
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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 (Language(),
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return_type,
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impl_code_address,
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arg_value_list,
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name.c_str(),
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error));
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if (error.Fail())
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{
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return nullptr;
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}
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if (m_caller_up)
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{
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StreamString errors;
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errors.Clear();
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unsigned num_errors = m_caller_up->CompileFunction(errors);
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if (num_errors)
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{
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error.SetErrorStringWithFormat ("Error compiling %s caller function: \"%s\".",
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m_function_name.c_str(),
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errors.GetData());
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m_caller_up.reset();
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return nullptr;
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}
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errors.Clear();
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ExecutionContext exe_ctx(process_sp);
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if (!m_caller_up->WriteFunctionWrapper(exe_ctx, errors))
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{
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error.SetErrorStringWithFormat ("Error inserting caller function for %s: \"%s\".",
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m_function_name.c_str(),
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errors.GetData());
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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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