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bf9a77305f
This moves the following classes from Core -> Utility. ConstString Error RegularExpression Stream StreamString The goal here is to get lldbUtility into a state where it has no dependendencies except on itself and LLVM, so it can be the starting point at which to start untangling LLDB's dependencies. These are all low level and very widely used classes, and previously lldbUtility had dependencies up to lldbCore in order to use these classes. So moving then down to lldbUtility makes sense from both the short term and long term perspective in solving this problem. Differential Revision: https://reviews.llvm.org/D29427 llvm-svn: 293941
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/Log.h"
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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/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, Error &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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